From 5bd67db12391a92a5625744294a5571287179bbe Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 11 Nov 2008 19:36:33 +0100 Subject: [PATCH] ipset: upgrade to ipset 2.4.3 --- extensions/ipset/GNUmakefile.in | 2 +- extensions/ipset/ip_set.c | 85 +++- extensions/ipset/ip_set.h | 87 +++- extensions/ipset/ip_set_bitmaps.h | 121 ++++++ extensions/ipset/ip_set_compat.h | 70 ++++ extensions/ipset/ip_set_getport.h | 48 +++ extensions/ipset/ip_set_hashes.h | 304 ++++++++++++++ extensions/ipset/ip_set_iphash.c | 359 +++-------------- extensions/ipset/ip_set_iphash.h | 4 +- extensions/ipset/ip_set_ipmap.c | 259 ++---------- extensions/ipset/ip_set_ipmap.h | 7 +- extensions/ipset/ip_set_ipporthash.c | 508 ++++-------------------- extensions/ipset/ip_set_ipporthash.h | 5 +- extensions/ipset/ip_set_ipportiphash.c | 214 ++++++++++ extensions/ipset/ip_set_ipportiphash.h | 39 ++ extensions/ipset/ip_set_ipportnethash.c | 305 ++++++++++++++ extensions/ipset/ip_set_ipportnethash.h | 42 ++ extensions/ipset/ip_set_iptree.c | 229 ++--------- extensions/ipset/ip_set_iptree.h | 1 - extensions/ipset/ip_set_iptreemap.c | 213 +++------- extensions/ipset/ip_set_iptreemap.h | 2 +- extensions/ipset/ip_set_macipmap.c | 284 +++---------- extensions/ipset/ip_set_macipmap.h | 3 +- extensions/ipset/ip_set_malloc.h | 18 +- extensions/ipset/ip_set_nethash.c | 438 ++++---------------- extensions/ipset/ip_set_nethash.h | 34 +- extensions/ipset/ip_set_portmap.c | 307 ++------------ extensions/ipset/ip_set_portmap.h | 10 +- extensions/ipset/ip_set_setlist.c | 332 ++++++++++++++++ extensions/ipset/ip_set_setlist.h | 26 ++ extensions/ipset/ipset.8 | 217 ++++++++-- extensions/ipset/ipset.c | 193 +++++---- extensions/ipset/ipset.h | 12 +- extensions/ipset/ipset_iphash.c | 82 ++-- extensions/ipset/ipset_ipmap.c | 105 ++--- extensions/ipset/ipset_ipporthash.c | 123 +++--- extensions/ipset/ipset_ipportiphash.c | 358 +++++++++++++++++ extensions/ipset/ipset_ipportnethash.c | 426 ++++++++++++++++++++ extensions/ipset/ipset_iptree.c | 89 ++--- extensions/ipset/ipset_iptreemap.c | 46 ++- extensions/ipset/ipset_macipmap.c | 113 +++--- extensions/ipset/ipset_nethash.c | 102 +++-- extensions/ipset/ipset_portmap.c | 103 +++-- extensions/ipset/ipset_setlist.c | 219 ++++++++++ extensions/ipset/ipt_SET.c | 153 ++++--- extensions/ipset/ipt_set.c | 155 +++++--- 46 files changed, 3970 insertions(+), 2882 deletions(-) create mode 100644 extensions/ipset/ip_set_bitmaps.h create mode 100644 extensions/ipset/ip_set_compat.h create mode 100644 extensions/ipset/ip_set_getport.h create mode 100644 extensions/ipset/ip_set_hashes.h create mode 100644 extensions/ipset/ip_set_ipportiphash.c create mode 100644 extensions/ipset/ip_set_ipportiphash.h create mode 100644 extensions/ipset/ip_set_ipportnethash.c create mode 100644 extensions/ipset/ip_set_ipportnethash.h create mode 100644 extensions/ipset/ip_set_setlist.c create mode 100644 extensions/ipset/ip_set_setlist.h create mode 100644 extensions/ipset/ipset_ipportiphash.c create mode 100644 extensions/ipset/ipset_ipportnethash.c create mode 100644 extensions/ipset/ipset_setlist.c diff --git a/extensions/ipset/GNUmakefile.in b/extensions/ipset/GNUmakefile.in index 73d7b67..b182876 100644 --- a/extensions/ipset/GNUmakefile.in +++ b/extensions/ipset/GNUmakefile.in @@ -29,7 +29,7 @@ regular_CFLAGS := @regular_CFLAGS@ kinclude_CFLAGS := @kinclude_CFLAGS@ xtables_CFLAGS := @xtables_CFLAGS@ -AM_CFLAGS := ${regular_CFLAGS} -I${top_srcdir}/include ${xtables_CFLAGS} ${kinclude_CFLAGS} -DXTABLES_LIBDIR=\"${xtlibdir}\" +AM_CFLAGS := ${regular_CFLAGS} -I${top_srcdir}/include ${xtables_CFLAGS} ${kinclude_CFLAGS} -DIPSET_LIB_DIR=\"${xtlibdir}\" AM_DEPFLAGS = -Wp,-MMD,$(@D)/.$(@F).d,-MT,$@ ifeq (${V},) diff --git a/extensions/ipset/ip_set.c b/extensions/ipset/ip_set.c index 84b47a0..88d118e 100644 --- a/extensions/ipset/ip_set.c +++ b/extensions/ipset/ip_set.c @@ -20,20 +20,20 @@ #include #include #include -#include #include #include #include -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) -# include +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27) +#include #else -# include +#include #endif #include -#include +#include #define ASSERT_READ_LOCK(x) #define ASSERT_WRITE_LOCK(x) +#include #include "ip_set.h" static struct list_head set_type_list; /* all registered sets */ @@ -137,7 +137,7 @@ ip_set_hash_del(ip_set_id_t id, ip_set_ip_t ip) if (set_hash != NULL) __set_hash_del(set_hash); - write_unlock_bh(&ip_set_lock); + write_unlock_bh(&ip_set_lock); return 0; } @@ -235,10 +235,10 @@ ip_set_testip_kernel(ip_set_id_t index, && follow_bindings(index, set, ip)); read_unlock_bh(&ip_set_lock); - return res; + return (res < 0 ? 0 : res); } -void +int ip_set_addip_kernel(ip_set_id_t index, const struct sk_buff *skb, const u_int32_t *flags) @@ -268,9 +268,11 @@ ip_set_addip_kernel(ip_set_id_t index, && set->type->retry && (res = set->type->retry(set)) == 0) goto retry; + + return res; } -void +int ip_set_delip_kernel(ip_set_id_t index, const struct sk_buff *skb, const u_int32_t *flags) @@ -294,6 +296,8 @@ ip_set_delip_kernel(ip_set_id_t index, && flags[i] && follow_bindings(index, set, ip)); read_unlock_bh(&ip_set_lock); + + return res; } /* Register and deregister settype */ @@ -358,6 +362,29 @@ ip_set_unregister_set_type(struct ip_set_type *set_type) } +ip_set_id_t +__ip_set_get_byname(const char *name, struct ip_set **set) +{ + ip_set_id_t i, index = IP_SET_INVALID_ID; + + for (i = 0; i < ip_set_max; i++) { + if (ip_set_list[i] != NULL + && SETNAME_EQ(ip_set_list[i]->name, name)) { + __ip_set_get(i); + index = i; + *set = ip_set_list[i]; + break; + } + } + return index; +} + +void __ip_set_put_byid(ip_set_id_t index) +{ + if (ip_set_list[index]) + __ip_set_put(index); +} + /* * Userspace routines */ @@ -490,7 +517,16 @@ ip_set_addip(ip_set_id_t index, const void *data, size_t size) { + struct ip_set *set = ip_set_list[index]; + IP_SET_ASSERT(set); + + if (size - sizeof(struct ip_set_req_adt) != set->type->reqsize) { + ip_set_printk("data length wrong (want %zu, have %zu)", + set->type->reqsize, + size - sizeof(struct ip_set_req_adt)); + return -EINVAL; + } return __ip_set_addip(index, data + sizeof(struct ip_set_req_adt), size - sizeof(struct ip_set_req_adt)); @@ -506,6 +542,13 @@ ip_set_delip(ip_set_id_t index, int res; IP_SET_ASSERT(set); + + if (size - sizeof(struct ip_set_req_adt) != set->type->reqsize) { + ip_set_printk("data length wrong (want %zu, have %zu)", + set->type->reqsize, + size - sizeof(struct ip_set_req_adt)); + return -EINVAL; + } write_lock_bh(&set->lock); res = set->type->delip(set, data + sizeof(struct ip_set_req_adt), @@ -526,6 +569,13 @@ ip_set_testip(ip_set_id_t index, int res; IP_SET_ASSERT(set); + + if (size - sizeof(struct ip_set_req_adt) != set->type->reqsize) { + ip_set_printk("data length wrong (want %zu, have %zu)", + set->type->reqsize, + size - sizeof(struct ip_set_req_adt)); + return -EINVAL; + } res = __ip_set_testip(set, data + sizeof(struct ip_set_req_adt), size - sizeof(struct ip_set_req_adt), @@ -805,6 +855,7 @@ ip_set_create(const char *name, int res = 0; DP("setname: %s, typename: %s, id: %u", name, typename, restore); + /* * First, and without any locks, allocate and initialize * a normal base set structure. @@ -848,6 +899,14 @@ ip_set_create(const char *name, } read_unlock_bh(&ip_set_lock); + /* Check request size */ + if (size != set->type->header_size) { + ip_set_printk("data length wrong (want %zu, have %zu)", + set->type->header_size, + size); + goto put_out; + } + /* * Without holding any locks, create private part. */ @@ -1007,7 +1066,9 @@ ip_set_swap(ip_set_id_t from_index, ip_set_id_t to_index) u_int32_t from_ref; DP("set: %s to %s", from->name, to->name); - /* Features must not change. Artifical restriction. */ + /* Features must not change. + * Not an artifical restriction anymore, as we must prevent + * possible loops created by swapping in setlist type of sets. */ if (from->type->features != to->type->features) return -ENOEXEC; @@ -1916,6 +1977,7 @@ static struct nf_sockopt_ops so_set = { }; static int max_sets, hash_size; + module_param(max_sets, int, 0600); MODULE_PARM_DESC(max_sets, "maximal number of sets"); module_param(hash_size, int, 0600); @@ -1958,6 +2020,7 @@ static int __init ip_set_init(void) vfree(ip_set_hash); return res; } + return 0; } @@ -1976,6 +2039,8 @@ EXPORT_SYMBOL(ip_set_unregister_set_type); EXPORT_SYMBOL(ip_set_get_byname); EXPORT_SYMBOL(ip_set_get_byindex); EXPORT_SYMBOL(ip_set_put); +EXPORT_SYMBOL(__ip_set_get_byname); +EXPORT_SYMBOL(__ip_set_put_byid); EXPORT_SYMBOL(ip_set_addip_kernel); EXPORT_SYMBOL(ip_set_delip_kernel); diff --git a/extensions/ipset/ip_set.h b/extensions/ipset/ip_set.h index d6cf536..8a3a9d4 100644 --- a/extensions/ipset/ip_set.h +++ b/extensions/ipset/ip_set.h @@ -95,6 +95,9 @@ typedef uint16_t ip_set_id_t; #define IPSET_TYPE_PORT 0x02 /* Port type of set */ #define IPSET_DATA_SINGLE 0x04 /* Single data storage */ #define IPSET_DATA_DOUBLE 0x08 /* Double data storage */ +#define IPSET_DATA_TRIPLE 0x10 /* Triple data storage */ +#define IPSET_TYPE_IP1 0x20 /* IP address type of set */ +#define IPSET_TYPE_SETNAME 0x40 /* setname type of set */ /* Reserved keywords */ #define IPSET_TOKEN_DEFAULT ":default:" @@ -304,7 +307,12 @@ static inline int bitmap_bytes(ip_set_ip_t a, ip_set_ip_t b) return 4 * ((((b - a + 8) / 8) + 3) / 4); } +/* General limit for the elements in a set */ +#define MAX_RANGE 0x0000FFFF + #ifdef __KERNEL__ +#include "ip_set_compat.h" +#include "ip_set_malloc.h" #define ip_set_printk(format, args...) \ do { \ @@ -489,18 +497,85 @@ struct ip_set_hash { extern ip_set_id_t ip_set_get_byname(const char name[IP_SET_MAXNAMELEN]); extern ip_set_id_t ip_set_get_byindex(ip_set_id_t id); extern void ip_set_put(ip_set_id_t id); +extern ip_set_id_t __ip_set_get_byname(const char name[IP_SET_MAXNAMELEN], + struct ip_set **set); +extern void __ip_set_put_byid(ip_set_id_t id); /* API for iptables set match, and SET target */ -extern void ip_set_addip_kernel(ip_set_id_t id, - const struct sk_buff *skb, - const u_int32_t *flags); -extern void ip_set_delip_kernel(ip_set_id_t id, - const struct sk_buff *skb, - const u_int32_t *flags); +extern int ip_set_addip_kernel(ip_set_id_t id, + const struct sk_buff *skb, + const u_int32_t *flags); +extern int ip_set_delip_kernel(ip_set_id_t id, + const struct sk_buff *skb, + const u_int32_t *flags); extern int ip_set_testip_kernel(ip_set_id_t id, const struct sk_buff *skb, const u_int32_t *flags); +/* Macros to generate functions */ + +#define STRUCT(pre, type) CONCAT2(pre, type) +#define CONCAT2(pre, type) struct pre##type + +#define FNAME(pre, mid, post) CONCAT3(pre, mid, post) +#define CONCAT3(pre, mid, post) pre##mid##post + +#define UADT0(type, adt, args...) \ +static int \ +FNAME(type,_u,adt)(struct ip_set *set, const void *data, size_t size, \ + ip_set_ip_t *hash_ip) \ +{ \ + const STRUCT(ip_set_req_,type) *req = data; \ + \ + return FNAME(type,_,adt)(set, hash_ip , ## args); \ +} + +#define UADT(type, adt, args...) \ + UADT0(type, adt, req->ip , ## args) + +#define KADT(type, adt, getfn, args...) \ +static int \ +FNAME(type,_k,adt)(struct ip_set *set, \ + const struct sk_buff *skb, \ + ip_set_ip_t *hash_ip, \ + const u_int32_t *flags, \ + unsigned char index) \ +{ \ + ip_set_ip_t ip = getfn(skb, flags[index]); \ + \ + KADT_CONDITION \ + return FNAME(type,_,adt)(set, hash_ip, ip , ##args); \ +} + +#define REGISTER_MODULE(type) \ +static int __init ip_set_##type##_init(void) \ +{ \ + init_max_page_size(); \ + return ip_set_register_set_type(&ip_set_##type); \ +} \ + \ +static void __exit ip_set_##type##_fini(void) \ +{ \ + /* FIXME: possible race with ip_set_create() */ \ + ip_set_unregister_set_type(&ip_set_##type); \ +} \ + \ +module_init(ip_set_##type##_init); \ +module_exit(ip_set_##type##_fini); + +/* Common functions */ + +static inline ip_set_ip_t +ipaddr(const struct sk_buff *skb, u_int32_t flag) +{ + return ntohl(flag & IPSET_SRC ? ip_hdr(skb)->saddr : ip_hdr(skb)->daddr); +} + +#define jhash_ip(map, i, ip) jhash_1word(ip, *(map->initval + i)) + +#define pack_ip_port(map, ip, port) \ + (port + ((ip - ((map)->first_ip)) << 16)) + #endif /* __KERNEL__ */ #endif /*_IP_SET_H*/ diff --git a/extensions/ipset/ip_set_bitmaps.h b/extensions/ipset/ip_set_bitmaps.h new file mode 100644 index 0000000..2e9293f --- /dev/null +++ b/extensions/ipset/ip_set_bitmaps.h @@ -0,0 +1,121 @@ +#ifndef __IP_SET_BITMAPS_H +#define __IP_SET_BITMAPS_H + +/* Macros to generate functions */ + +#ifdef __KERNEL__ +#define BITMAP_CREATE(type) \ +static int \ +type##_create(struct ip_set *set, const void *data, size_t size) \ +{ \ + int newbytes; \ + const struct ip_set_req_##type##_create *req = data; \ + struct ip_set_##type *map; \ + \ + if (req->from > req->to) { \ + DP("bad range"); \ + return -ENOEXEC; \ + } \ + \ + map = kmalloc(sizeof(struct ip_set_##type), GFP_KERNEL); \ + if (!map) { \ + DP("out of memory for %d bytes", \ + sizeof(struct ip_set_#type)); \ + return -ENOMEM; \ + } \ + map->first_ip = req->from; \ + map->last_ip = req->to; \ + \ + newbytes = __##type##_create(req, map); \ + if (newbytes < 0) { \ + kfree(map); \ + return newbytes; \ + } \ + \ + map->size = newbytes; \ + map->members = ip_set_malloc(newbytes); \ + if (!map->members) { \ + DP("out of memory for %d bytes", newbytes); \ + kfree(map); \ + return -ENOMEM; \ + } \ + memset(map->members, 0, newbytes); \ + \ + set->data = map; \ + return 0; \ +} + +#define BITMAP_DESTROY(type) \ +static void \ +type##_destroy(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data; \ + \ + ip_set_free(map->members, map->size); \ + kfree(map); \ + \ + set->data = NULL; \ +} + +#define BITMAP_FLUSH(type) \ +static void \ +type##_flush(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data; \ + memset(map->members, 0, map->size); \ +} + +#define BITMAP_LIST_HEADER(type) \ +static void \ +type##_list_header(const struct ip_set *set, void *data) \ +{ \ + const struct ip_set_##type *map = set->data; \ + struct ip_set_req_##type##_create *header = data; \ + \ + header->from = map->first_ip; \ + header->to = map->last_ip; \ + __##type##_list_header(map, header); \ +} + +#define BITMAP_LIST_MEMBERS_SIZE(type) \ +static int \ +type##_list_members_size(const struct ip_set *set) \ +{ \ + const struct ip_set_##type *map = set->data; \ + \ + return map->size; \ +} + +#define BITMAP_LIST_MEMBERS(type) \ +static void \ +type##_list_members(const struct ip_set *set, void *data) \ +{ \ + const struct ip_set_##type *map = set->data; \ + \ + memcpy(data, map->members, map->size); \ +} + +#define IP_SET_TYPE(type, __features) \ +struct ip_set_type ip_set_##type = { \ + .typename = #type, \ + .features = __features, \ + .protocol_version = IP_SET_PROTOCOL_VERSION, \ + .create = &type##_create, \ + .destroy = &type##_destroy, \ + .flush = &type##_flush, \ + .reqsize = sizeof(struct ip_set_req_##type), \ + .addip = &type##_uadd, \ + .addip_kernel = &type##_kadd, \ + .delip = &type##_udel, \ + .delip_kernel = &type##_kdel, \ + .testip = &type##_utest, \ + .testip_kernel = &type##_ktest, \ + .header_size = sizeof(struct ip_set_req_##type##_create),\ + .list_header = &type##_list_header, \ + .list_members_size = &type##_list_members_size, \ + .list_members = &type##_list_members, \ + .me = THIS_MODULE, \ +}; +#endif /* __KERNEL */ + +#endif /* __IP_SET_BITMAPS_H */ diff --git a/extensions/ipset/ip_set_compat.h b/extensions/ipset/ip_set_compat.h new file mode 100644 index 0000000..5695b3b --- /dev/null +++ b/extensions/ipset/ip_set_compat.h @@ -0,0 +1,70 @@ +#ifndef _IP_SET_COMPAT_H +#define _IP_SET_COMPAT_H + +#ifdef __KERNEL__ +#include + +/* Arrgh */ +#ifdef MODULE +#define __MOD_INC(foo) __MOD_INC_USE_COUNT(foo) +#define __MOD_DEC(foo) __MOD_DEC_USE_COUNT(foo) +#else +#define __MOD_INC(foo) 1 +#define __MOD_DEC(foo) +#endif + +/* Backward compatibility */ +#ifndef __nocast +#define __nocast +#endif +#ifndef __bitwise__ +#define __bitwise__ +#endif + +/* Compatibility glue code */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#include +#define DEFINE_RWLOCK(x) rwlock_t x = RW_LOCK_UNLOCKED +#define try_module_get(x) __MOD_INC(x) +#define module_put(x) __MOD_DEC(x) +#define __clear_bit(nr, addr) clear_bit(nr, addr) +#define __set_bit(nr, addr) set_bit(nr, addr) +#define __test_and_set_bit(nr, addr) test_and_set_bit(nr, addr) +#define __test_and_clear_bit(nr, addr) test_and_clear_bit(nr, addr) + +typedef unsigned __bitwise__ gfp_t; + +static inline void *kzalloc(size_t size, gfp_t flags) +{ + void *data = kmalloc(size, flags); + + if (data) + memset(data, 0, size); + + return data; +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) +#define __KMEM_CACHE_T__ kmem_cache_t +#else +#define __KMEM_CACHE_T__ struct kmem_cache +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) +#define ip_hdr(skb) ((skb)->nh.iph) +#define skb_mac_header(skb) ((skb)->mac.raw) +#define eth_hdr(skb) ((struct ethhdr *)skb_mac_header(skb)) +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) +#define KMEM_CACHE_CREATE(name, size) \ + kmem_cache_create(name, size, 0, 0, NULL, NULL) +#else +#define KMEM_CACHE_CREATE(name, size) \ + kmem_cache_create(name, size, 0, 0, NULL) +#endif + + +#endif /* __KERNEL__ */ +#endif /* _IP_SET_COMPAT_H */ diff --git a/extensions/ipset/ip_set_getport.h b/extensions/ipset/ip_set_getport.h new file mode 100644 index 0000000..9e322bf --- /dev/null +++ b/extensions/ipset/ip_set_getport.h @@ -0,0 +1,48 @@ +#ifndef _IP_SET_GETPORT_H +#define _IP_SET_GETPORT_H + +#ifdef __KERNEL__ + +#define INVALID_PORT (MAX_RANGE + 1) + +/* We must handle non-linear skbs */ +static inline ip_set_ip_t +get_port(const struct sk_buff *skb, u_int32_t flags) +{ + struct iphdr *iph = ip_hdr(skb); + u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET; + switch (iph->protocol) { + case IPPROTO_TCP: { + struct tcphdr tcph; + + /* See comments at tcp_match in ip_tables.c */ + if (offset) + return INVALID_PORT; + + if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &tcph, sizeof(tcph)) < 0) + /* No choice either */ + return INVALID_PORT; + + return ntohs(flags & IPSET_SRC ? + tcph.source : tcph.dest); + } + case IPPROTO_UDP: { + struct udphdr udph; + + if (offset) + return INVALID_PORT; + + if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &udph, sizeof(udph)) < 0) + /* No choice either */ + return INVALID_PORT; + + return ntohs(flags & IPSET_SRC ? + udph.source : udph.dest); + } + default: + return INVALID_PORT; + } +} +#endif /* __KERNEL__ */ + +#endif /*_IP_SET_GETPORT_H*/ diff --git a/extensions/ipset/ip_set_hashes.h b/extensions/ipset/ip_set_hashes.h new file mode 100644 index 0000000..6914a12 --- /dev/null +++ b/extensions/ipset/ip_set_hashes.h @@ -0,0 +1,304 @@ +#ifndef __IP_SET_HASHES_H +#define __IP_SET_HASHES_H + +#define initval_t uint32_t + +/* Macros to generate functions */ + +#ifdef __KERNEL__ +#define HASH_RETRY0(type, dtype, cond) \ +static int \ +type##_retry(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data, *tmp; \ + dtype *elem; \ + void *members; \ + u_int32_t i, hashsize = map->hashsize; \ + int res; \ + \ + if (map->resize == 0) \ + return -ERANGE; \ + \ + again: \ + res = 0; \ + \ + /* Calculate new hash size */ \ + hashsize += (hashsize * map->resize)/100; \ + if (hashsize == map->hashsize) \ + hashsize++; \ + \ + ip_set_printk("rehashing of set %s triggered: " \ + "hashsize grows from %u to %u", \ + set->name, map->hashsize, hashsize); \ + \ + tmp = kmalloc(sizeof(struct ip_set_##type) \ + + map->probes * sizeof(initval_t), GFP_ATOMIC); \ + if (!tmp) { \ + DP("out of memory for %d bytes", \ + sizeof(struct ip_set_##type) \ + + map->probes * sizeof(initval_t)); \ + return -ENOMEM; \ + } \ + tmp->members = harray_malloc(hashsize, sizeof(dtype), GFP_ATOMIC);\ + if (!tmp->members) { \ + DP("out of memory for %d bytes", hashsize * sizeof(dtype));\ + kfree(tmp); \ + return -ENOMEM; \ + } \ + tmp->hashsize = hashsize; \ + tmp->elements = 0; \ + tmp->probes = map->probes; \ + tmp->resize = map->resize; \ + memcpy(tmp->initval, map->initval, map->probes * sizeof(initval_t));\ + __##type##_retry(tmp, map); \ + \ + write_lock_bh(&set->lock); \ + map = set->data; /* Play safe */ \ + for (i = 0; i < map->hashsize && res == 0; i++) { \ + elem = HARRAY_ELEM(map->members, dtype *, i); \ + if (cond) \ + res = __##type##_add(tmp, elem); \ + } \ + if (res) { \ + /* Failure, try again */ \ + write_unlock_bh(&set->lock); \ + harray_free(tmp->members); \ + kfree(tmp); \ + goto again; \ + } \ + \ + /* Success at resizing! */ \ + members = map->members; \ + \ + map->hashsize = tmp->hashsize; \ + map->members = tmp->members; \ + write_unlock_bh(&set->lock); \ + \ + harray_free(members); \ + kfree(tmp); \ + \ + return 0; \ +} + +#define HASH_RETRY(type, dtype) \ + HASH_RETRY0(type, dtype, *elem) + +#define HASH_RETRY2(type, dtype) \ + HASH_RETRY0(type, dtype, elem->ip || elem->ip1) + +#define HASH_CREATE(type, dtype) \ +static int \ +type##_create(struct ip_set *set, const void *data, size_t size) \ +{ \ + const struct ip_set_req_##type##_create *req = data; \ + struct ip_set_##type *map; \ + uint16_t i; \ + \ + if (req->hashsize < 1) { \ + ip_set_printk("hashsize too small"); \ + return -ENOEXEC; \ + } \ + \ + if (req->probes < 1) { \ + ip_set_printk("probes too small"); \ + return -ENOEXEC; \ + } \ + \ + map = kmalloc(sizeof(struct ip_set_##type) \ + + req->probes * sizeof(initval_t), GFP_KERNEL); \ + if (!map) { \ + DP("out of memory for %d bytes", \ + sizeof(struct ip_set_##type) \ + + req->probes * sizeof(initval_t)); \ + return -ENOMEM; \ + } \ + for (i = 0; i < req->probes; i++) \ + get_random_bytes(((initval_t *) map->initval)+i, 4); \ + map->elements = 0; \ + map->hashsize = req->hashsize; \ + map->probes = req->probes; \ + map->resize = req->resize; \ + if (__##type##_create(req, map)) { \ + kfree(map); \ + return -ENOEXEC; \ + } \ + map->members = harray_malloc(map->hashsize, sizeof(dtype), GFP_KERNEL);\ + if (!map->members) { \ + DP("out of memory for %d bytes", map->hashsize * sizeof(dtype));\ + kfree(map); \ + return -ENOMEM; \ + } \ + \ + set->data = map; \ + return 0; \ +} + +#define HASH_DESTROY(type) \ +static void \ +type##_destroy(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data; \ + \ + harray_free(map->members); \ + kfree(map); \ + \ + set->data = NULL; \ +} + +#define HASH_FLUSH(type, dtype) \ +static void \ +type##_flush(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data; \ + harray_flush(map->members, map->hashsize, sizeof(dtype)); \ + map->elements = 0; \ +} + +#define HASH_FLUSH_CIDR(type, dtype) \ +static void \ +type##_flush(struct ip_set *set) \ +{ \ + struct ip_set_##type *map = set->data; \ + harray_flush(map->members, map->hashsize, sizeof(dtype)); \ + memset(map->cidr, 0, sizeof(map->cidr)); \ + memset(map->nets, 0, sizeof(map->nets)); \ + map->elements = 0; \ +} + +#define HASH_LIST_HEADER(type) \ +static void \ +type##_list_header(const struct ip_set *set, void *data) \ +{ \ + const struct ip_set_##type *map = set->data; \ + struct ip_set_req_##type##_create *header = data; \ + \ + header->hashsize = map->hashsize; \ + header->probes = map->probes; \ + header->resize = map->resize; \ + __##type##_list_header(map, header); \ +} + +#define HASH_LIST_MEMBERS_SIZE(type, dtype) \ +static int \ +type##_list_members_size(const struct ip_set *set) \ +{ \ + const struct ip_set_##type *map = set->data; \ + \ + return (map->hashsize * sizeof(dtype)); \ +} + +#define HASH_LIST_MEMBERS(type, dtype) \ +static void \ +type##_list_members(const struct ip_set *set, void *data) \ +{ \ + const struct ip_set_##type *map = set->data; \ + dtype *elem; \ + uint32_t i; \ + \ + for (i = 0; i < map->hashsize; i++) { \ + elem = HARRAY_ELEM(map->members, dtype *, i); \ + ((dtype *)data)[i] = *elem; \ + } \ +} + +#define HASH_LIST_MEMBERS_MEMCPY(type, dtype) \ +static void \ +type##_list_members(const struct ip_set *set, void *data) \ +{ \ + const struct ip_set_##type *map = set->data; \ + dtype *elem; \ + uint32_t i; \ + \ + for (i = 0; i < map->hashsize; i++) { \ + elem = HARRAY_ELEM(map->members, dtype *, i); \ + memcpy((((dtype *)data)+i), elem, sizeof(dtype)); \ + } \ +} + +#define IP_SET_RTYPE(type, __features) \ +struct ip_set_type ip_set_##type = { \ + .typename = #type, \ + .features = __features, \ + .protocol_version = IP_SET_PROTOCOL_VERSION, \ + .create = &type##_create, \ + .retry = &type##_retry, \ + .destroy = &type##_destroy, \ + .flush = &type##_flush, \ + .reqsize = sizeof(struct ip_set_req_##type), \ + .addip = &type##_uadd, \ + .addip_kernel = &type##_kadd, \ + .delip = &type##_udel, \ + .delip_kernel = &type##_kdel, \ + .testip = &type##_utest, \ + .testip_kernel = &type##_ktest, \ + .header_size = sizeof(struct ip_set_req_##type##_create),\ + .list_header = &type##_list_header, \ + .list_members_size = &type##_list_members_size, \ + .list_members = &type##_list_members, \ + .me = THIS_MODULE, \ +}; + +/* Helper functions */ +static inline void +add_cidr_size(uint8_t *cidr, uint8_t size) +{ + uint8_t next; + int i; + + for (i = 0; i < 30 && cidr[i]; i++) { + if (cidr[i] < size) { + next = cidr[i]; + cidr[i] = size; + size = next; + } + } + if (i < 30) + cidr[i] = size; +} + +static inline void +del_cidr_size(uint8_t *cidr, uint8_t size) +{ + int i; + + for (i = 0; i < 29 && cidr[i]; i++) { + if (cidr[i] == size) + cidr[i] = size = cidr[i+1]; + } + cidr[29] = 0; +} +#else +#include +#endif /* __KERNEL */ + +#ifndef UINT16_MAX +#define UINT16_MAX 65535 +#endif + +static unsigned char shifts[] = {255, 253, 249, 241, 225, 193, 129, 1}; + +static inline ip_set_ip_t +pack_ip_cidr(ip_set_ip_t ip, unsigned char cidr) +{ + ip_set_ip_t addr, *paddr = &addr; + unsigned char n, t, *a; + + addr = htonl(ip & (0xFFFFFFFF << (32 - (cidr)))); +#ifdef __KERNEL__ + DP("ip:%u.%u.%u.%u/%u", NIPQUAD(addr), cidr); +#endif + n = cidr / 8; + t = cidr % 8; + a = &((unsigned char *)paddr)[n]; + *a = *a /(1 << (8 - t)) + shifts[t]; +#ifdef __KERNEL__ + DP("n: %u, t: %u, a: %u", n, t, *a); + DP("ip:%u.%u.%u.%u/%u, %u.%u.%u.%u", + HIPQUAD(ip), cidr, NIPQUAD(addr)); +#endif + + return ntohl(addr); +} + + +#endif /* __IP_SET_HASHES_H */ diff --git a/extensions/ipset/ip_set_iphash.c b/extensions/ipset/ip_set_iphash.c index 3108c1b..892ec98 100644 --- a/extensions/ipset/ip_set_iphash.c +++ b/extensions/ipset/ip_set_iphash.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003-2004 Jozsef Kadlecsik +/* Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -8,34 +8,24 @@ /* Kernel module implementing an ip hash set */ #include +#include #include #include -#include #include -#include -#include "ip_set.h" #include #include #include #include -#include #include #include -#include "ip_set_malloc.h" #include "ip_set_iphash.h" static int limit = MAX_RANGE; static inline __u32 -jhash_ip(const struct ip_set_iphash *map, uint16_t i, ip_set_ip_t ip) -{ - return jhash_1word(ip, *(((uint32_t *) map->initval) + i)); -} - -static inline __u32 -hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iphash_id(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iphash *map = set->data; __u32 id; @@ -59,64 +49,30 @@ hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) } static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iphash_test(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { - return (ip && hash_id(set, ip, hash_ip) != UINT_MAX); + return (ip && iphash_id(set, hash_ip, ip) != UINT_MAX); } -static int -testip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iphash *req = data; +#define KADT_CONDITION - if (size != sizeof(struct ip_set_req_iphash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iphash), - size); - return -EINVAL; - } - return __testip(set, req->ip, hash_ip); -} - -static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} +UADT(iphash, test) +KADT(iphash, test, ipaddr) static inline int -__addip(struct ip_set_iphash *map, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +__iphash_add(struct ip_set_iphash *map, ip_set_ip_t *ip) { __u32 probe; u_int16_t i; ip_set_ip_t *elem; - if (!ip || map->elements >= limit) - return -ERANGE; - - *hash_ip = ip & map->netmask; - for (i = 0; i < map->probes; i++) { - probe = jhash_ip(map, i, *hash_ip) % map->hashsize; + probe = jhash_ip(map, i, *ip) % map->hashsize; elem = HARRAY_ELEM(map->members, ip_set_ip_t *, probe); - if (*elem == *hash_ip) + if (*elem == *ip) return -EEXIST; if (!*elem) { - *elem = *hash_ip; + *elem = *ip; map->elements++; return 0; } @@ -125,115 +81,32 @@ __addip(struct ip_set_iphash *map, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return -EAGAIN; } -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iphash *req = data; - - if (size != sizeof(struct ip_set_req_iphash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iphash), - size); - return -EINVAL; - } - return __addip(set->data, req->ip, hash_ip); -} - -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __addip((struct ip_set_iphash *) set->data, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} - -static int retry(struct ip_set *set) +static inline int +iphash_add(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iphash *map = set->data; - ip_set_ip_t hash_ip, *elem; - void *members; - u_int32_t i, hashsize = map->hashsize; - int res; - struct ip_set_iphash *tmp; - if (map->resize == 0) + if (!ip || map->elements >= limit) return -ERANGE; - again: - res = 0; - - /* Calculate new hash size */ - hashsize += (hashsize * map->resize)/100; - if (hashsize == map->hashsize) - hashsize++; + *hash_ip = ip & map->netmask; - ip_set_printk("rehashing of set %s triggered: " - "hashsize grows from %u to %u", - set->name, map->hashsize, hashsize); - - tmp = kmalloc(sizeof(struct ip_set_iphash) - + map->probes * sizeof(uint32_t), GFP_ATOMIC); - if (!tmp) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_iphash) - + map->probes * sizeof(uint32_t)); - return -ENOMEM; - } - tmp->members = harray_malloc(hashsize, sizeof(ip_set_ip_t), GFP_ATOMIC); - if (!tmp->members) { - DP("out of memory for %d bytes", hashsize * sizeof(ip_set_ip_t)); - kfree(tmp); - return -ENOMEM; - } - tmp->hashsize = hashsize; - tmp->elements = 0; - tmp->probes = map->probes; - tmp->resize = map->resize; - tmp->netmask = map->netmask; - memcpy(tmp->initval, map->initval, map->probes * sizeof(uint32_t)); - - write_lock_bh(&set->lock); - map = set->data; /* Play safe */ - for (i = 0; i < map->hashsize && res == 0; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - if (*elem) - res = __addip(tmp, *elem, &hash_ip); - } - if (res) { - /* Failure, try again */ - write_unlock_bh(&set->lock); - harray_free(tmp->members); - kfree(tmp); - goto again; - } - - /* Success at resizing! */ - members = map->members; - - map->hashsize = tmp->hashsize; - map->members = tmp->members; - write_unlock_bh(&set->lock); - - harray_free(members); - kfree(tmp); - - return 0; + return __iphash_add(map, hash_ip); } +UADT(iphash, add) +KADT(iphash, add, ipaddr) + +static inline void +__iphash_retry(struct ip_set_iphash *tmp, struct ip_set_iphash *map) +{ + tmp->netmask = map->netmask; +} + +HASH_RETRY(iphash, ip_set_ip_t) + static inline int -__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iphash_del(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iphash *map = set->data; ip_set_ip_t id, *elem; @@ -241,7 +114,7 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) if (!ip) return -ERANGE; - id = hash_id(set, ip, hash_ip); + id = iphash_id(set, hash_ip, ip); if (id == UINT_MAX) return -EEXIST; @@ -252,156 +125,35 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +UADT(iphash, del) +KADT(iphash, del, ipaddr) + +static inline int +__iphash_create(const struct ip_set_req_iphash_create *req, + struct ip_set_iphash *map) { - const struct ip_set_req_iphash *req = data; - - if (size != sizeof(struct ip_set_req_iphash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iphash), - size); - return -EINVAL; - } - return __delip(set, req->ip, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __delip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - const struct ip_set_req_iphash_create *req = data; - struct ip_set_iphash *map; - uint16_t i; - - if (size != sizeof(struct ip_set_req_iphash_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iphash_create), - size); - return -EINVAL; - } - - if (req->hashsize < 1) { - ip_set_printk("hashsize too small"); - return -ENOEXEC; - } - - if (req->probes < 1) { - ip_set_printk("probes too small"); - return -ENOEXEC; - } - - map = kmalloc(sizeof(struct ip_set_iphash) - + req->probes * sizeof(uint32_t), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_iphash) - + req->probes * sizeof(uint32_t)); - return -ENOMEM; - } - for (i = 0; i < req->probes; i++) - get_random_bytes(((uint32_t *) map->initval)+i, 4); - map->elements = 0; - map->hashsize = req->hashsize; - map->probes = req->probes; - map->resize = req->resize; map->netmask = req->netmask; - map->members = harray_malloc(map->hashsize, sizeof(ip_set_ip_t), GFP_KERNEL); - if (!map->members) { - DP("out of memory for %d bytes", map->hashsize * sizeof(ip_set_ip_t)); - kfree(map); - return -ENOMEM; - } - - set->data = map; + return 0; } -static void destroy(struct ip_set *set) -{ - struct ip_set_iphash *map = set->data; +HASH_CREATE(iphash, ip_set_ip_t) +HASH_DESTROY(iphash) - harray_free(map->members); - kfree(map); +HASH_FLUSH(iphash, ip_set_ip_t) - set->data = NULL; -} - -static void flush(struct ip_set *set) -{ - struct ip_set_iphash *map = set->data; - harray_flush(map->members, map->hashsize, sizeof(ip_set_ip_t)); - map->elements = 0; -} - -static void list_header(const struct ip_set *set, void *data) -{ - struct ip_set_iphash *map = set->data; - struct ip_set_req_iphash_create *header = data; - - header->hashsize = map->hashsize; - header->probes = map->probes; - header->resize = map->resize; +static inline void +__iphash_list_header(const struct ip_set_iphash *map, + struct ip_set_req_iphash_create *header) +{ header->netmask = map->netmask; } -static int list_members_size(const struct ip_set *set) -{ - const struct ip_set_iphash *map = set->data; +HASH_LIST_HEADER(iphash) +HASH_LIST_MEMBERS_SIZE(iphash, ip_set_ip_t) +HASH_LIST_MEMBERS(iphash, ip_set_ip_t) - return (map->hashsize * sizeof(ip_set_ip_t)); -} - -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_iphash *map = set->data; - ip_set_ip_t i, *elem; - - for (i = 0; i < map->hashsize; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - ((ip_set_ip_t *)data)[i] = *elem; - } -} - -static struct ip_set_type ip_set_iphash = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_iphash), - .addip = &addip, - .addip_kernel = &addip_kernel, - .retry = &retry, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_iphash_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_RTYPE(iphash, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); @@ -409,17 +161,4 @@ MODULE_DESCRIPTION("iphash type of IP sets"); module_param(limit, int, 0600); MODULE_PARM_DESC(limit, "maximal number of elements stored in the sets"); -static int __init ip_set_iphash_init(void) -{ - init_max_page_size(); - return ip_set_register_set_type(&ip_set_iphash); -} - -static void __exit ip_set_iphash_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_iphash); -} - -module_init(ip_set_iphash_init); -module_exit(ip_set_iphash_fini); +REGISTER_MODULE(iphash) diff --git a/extensions/ipset/ip_set_iphash.h b/extensions/ipset/ip_set_iphash.h index 38cf2f2..6dba8c6 100644 --- a/extensions/ipset/ip_set_iphash.h +++ b/extensions/ipset/ip_set_iphash.h @@ -2,9 +2,9 @@ #define __IP_SET_IPHASH_H #include "ip_set.h" +#include "ip_set_hashes.h" #define SETTYPE_NAME "iphash" -#define MAX_RANGE 0x0000FFFF struct ip_set_iphash { ip_set_ip_t *members; /* the iphash proper */ @@ -13,7 +13,7 @@ struct ip_set_iphash { uint16_t probes; /* max number of probes */ uint16_t resize; /* resize factor in percent */ ip_set_ip_t netmask; /* netmask */ - void *initval[0]; /* initvals for jhash_1word */ + initval_t initval[0]; /* initvals for jhash_1word */ }; struct ip_set_req_iphash_create { diff --git a/extensions/ipset/ip_set_ipmap.c b/extensions/ipset/ip_set_ipmap.c index 394871e..bbec191 100644 --- a/extensions/ipset/ip_set_ipmap.c +++ b/extensions/ipset/ip_set_ipmap.c @@ -1,6 +1,6 @@ /* Copyright (C) 2000-2002 Joakim Axelsson * Patrick Schaaf - * Copyright (C) 2003-2004 Jozsef Kadlecsik + * Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -12,9 +12,6 @@ #include #include #include -#include -#include -#include "ip_set.h" #include #include #include @@ -29,9 +26,9 @@ ip_to_id(const struct ip_set_ipmap *map, ip_set_ip_t ip) } static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +ipmap_test(const struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { - struct ip_set_ipmap *map = set->data; + const struct ip_set_ipmap *map = set->data; if (ip < map->first_ip || ip > map->last_ip) return -ERANGE; @@ -42,43 +39,13 @@ __testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return !!test_bit(ip_to_id(map, *hash_ip), map->members); } -static int -testip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_ipmap *req = data; +#define KADT_CONDITION - if (size != sizeof(struct ip_set_req_ipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipmap), - size); - return -EINVAL; - } - return __testip(set, req->ip, hash_ip); -} - -static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - int res = __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); - return (res < 0 ? 0 : res); -} +UADT(ipmap, test) +KADT(ipmap, test, ipaddr) static inline int -__addip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +ipmap_add(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_ipmap *map = set->data; @@ -93,43 +60,11 @@ __addip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return 0; } -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_ipmap *req = data; - - if (size != sizeof(struct ip_set_req_ipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipmap), - size); - return -EINVAL; - } - DP("%u.%u.%u.%u", HIPQUAD(req->ip)); - return __addip(set, req->ip, hash_ip); -} - -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __addip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} +UADT(ipmap, add) +KADT(ipmap, add, ipaddr) static inline int -__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +ipmap_del(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_ipmap *map = set->data; @@ -144,69 +79,13 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +UADT(ipmap, del) +KADT(ipmap, del, ipaddr) + +static inline int +__ipmap_create(const struct ip_set_req_ipmap_create *req, + struct ip_set_ipmap *map) { - const struct ip_set_req_ipmap *req = data; - - if (size != sizeof(struct ip_set_req_ipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipmap), - size); - return -EINVAL; - } - return __delip(set, req->ip, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __delip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - int newbytes; - const struct ip_set_req_ipmap_create *req = data; - struct ip_set_ipmap *map; - - if (size != sizeof(struct ip_set_req_ipmap_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipmap_create), - size); - return -EINVAL; - } - - DP("from %u.%u.%u.%u to %u.%u.%u.%u", - HIPQUAD(req->from), HIPQUAD(req->to)); - - if (req->from > req->to) { - DP("bad ip range"); - return -ENOEXEC; - } - - map = kmalloc(sizeof(struct ip_set_ipmap), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_ipmap)); - return -ENOMEM; - } - map->first_ip = req->from; - map->last_ip = req->to; map->netmask = req->netmask; if (req->netmask == 0xFFFFFFFF) { @@ -215,12 +94,12 @@ static int create(struct ip_set *set, const void *data, size_t size) } else { unsigned int mask_bits, netmask_bits; ip_set_ip_t mask; - + map->first_ip &= map->netmask; /* Should we better bark? */ - + mask = range_to_mask(map->first_ip, map->last_ip, &mask_bits); netmask_bits = mask_to_bits(map->netmask); - + if ((!mask && (map->first_ip || map->last_ip != 0xFFFFFFFF)) || netmask_bits <= mask_bits) return -ENOEXEC; @@ -231,101 +110,33 @@ static int create(struct ip_set *set, const void *data, size_t size) map->sizeid = 2 << (netmask_bits - mask_bits - 1); } if (map->sizeid > MAX_RANGE + 1) { - ip_set_printk("range too big (max %d addresses)", - MAX_RANGE+1); - kfree(map); + ip_set_printk("range too big, %d elements (max %d)", + map->sizeid, MAX_RANGE+1); return -ENOEXEC; } DP("hosts %u, sizeid %u", map->hosts, map->sizeid); - newbytes = bitmap_bytes(0, map->sizeid - 1); - map->members = kmalloc(newbytes, GFP_KERNEL); - if (!map->members) { - DP("out of memory for %d bytes", newbytes); - kfree(map); - return -ENOMEM; - } - memset(map->members, 0, newbytes); - - set->data = map; - return 0; -} - -static void destroy(struct ip_set *set) -{ - struct ip_set_ipmap *map = set->data; - - kfree(map->members); - kfree(map); - - set->data = NULL; -} - -static void flush(struct ip_set *set) -{ - struct ip_set_ipmap *map = set->data; - memset(map->members, 0, bitmap_bytes(0, map->sizeid - 1)); -} - -static void list_header(const struct ip_set *set, void *data) -{ - const struct ip_set_ipmap *map = set->data; - struct ip_set_req_ipmap_create *header = data; - - header->from = map->first_ip; - header->to = map->last_ip; - header->netmask = map->netmask; -} - -static int list_members_size(const struct ip_set *set) -{ - const struct ip_set_ipmap *map = set->data; - return bitmap_bytes(0, map->sizeid - 1); } -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_ipmap *map = set->data; - int bytes = bitmap_bytes(0, map->sizeid - 1); +BITMAP_CREATE(ipmap) +BITMAP_DESTROY(ipmap) +BITMAP_FLUSH(ipmap) - memcpy(data, map->members, bytes); +static inline void +__ipmap_list_header(const struct ip_set_ipmap *map, + struct ip_set_req_ipmap_create *header) +{ + header->netmask = map->netmask; } -static struct ip_set_type ip_set_ipmap = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_ipmap), - .addip = &addip, - .addip_kernel = &addip_kernel, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_ipmap_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +BITMAP_LIST_HEADER(ipmap) +BITMAP_LIST_MEMBERS_SIZE(ipmap) +BITMAP_LIST_MEMBERS(ipmap) + +IP_SET_TYPE(ipmap, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("ipmap type of IP sets"); -static int __init ip_set_ipmap_init(void) -{ - return ip_set_register_set_type(&ip_set_ipmap); -} - -static void __exit ip_set_ipmap_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_ipmap); -} - -module_init(ip_set_ipmap_init); -module_exit(ip_set_ipmap_fini); +REGISTER_MODULE(ipmap) diff --git a/extensions/ipset/ip_set_ipmap.h b/extensions/ipset/ip_set_ipmap.h index ebe67fc..b7e6991 100644 --- a/extensions/ipset/ip_set_ipmap.h +++ b/extensions/ipset/ip_set_ipmap.h @@ -2,9 +2,9 @@ #define __IP_SET_IPMAP_H #include "ip_set.h" +#include "ip_set_bitmaps.h" #define SETTYPE_NAME "ipmap" -#define MAX_RANGE 0x0000FFFF struct ip_set_ipmap { void *members; /* the ipmap proper */ @@ -13,6 +13,7 @@ struct ip_set_ipmap { ip_set_ip_t netmask; /* subnet netmask */ ip_set_ip_t sizeid; /* size of set in IPs */ ip_set_ip_t hosts; /* number of hosts in a subnet */ + size_t size; /* size of the ipmap proper */ }; struct ip_set_req_ipmap_create { @@ -25,7 +26,7 @@ struct ip_set_req_ipmap { ip_set_ip_t ip; }; -static unsigned int +static inline unsigned int mask_to_bits(ip_set_ip_t mask) { unsigned int bits = 32; @@ -41,7 +42,7 @@ mask_to_bits(ip_set_ip_t mask) return bits; } -static ip_set_ip_t +static inline ip_set_ip_t range_to_mask(ip_set_ip_t from, ip_set_ip_t to, unsigned int *bits) { ip_set_ip_t mask = 0xFFFFFFFE; diff --git a/extensions/ipset/ip_set_ipporthash.c b/extensions/ipset/ip_set_ipporthash.c index 07b290e..af12804 100644 --- a/extensions/ipset/ip_set_ipporthash.c +++ b/extensions/ipset/ip_set_ipporthash.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003-2004 Jozsef Kadlecsik +/* Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -8,100 +8,40 @@ /* Kernel module implementing an ip+port hash set */ #include +#include #include #include #include #include -#include #include -#include -#include "ip_set.h" #include #include #include #include -#include #include #include -#include "ip_set_malloc.h" #include "ip_set_ipporthash.h" +#include "ip_set_getport.h" static int limit = MAX_RANGE; -/* We must handle non-linear skbs */ -static inline ip_set_ip_t -get_port(const struct sk_buff *skb, u_int32_t flags) -{ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - struct iphdr *iph = ip_hdr(skb); -#else - struct iphdr *iph = skb->nh.iph; -#endif - u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET; - - switch (iph->protocol) { - case IPPROTO_TCP: { - struct tcphdr tcph; - - /* See comments at tcp_match in ip_tables.c */ - if (offset) - return INVALID_PORT; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &tcph, sizeof(tcph)) < 0) -#else - if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &tcph, sizeof(tcph)) < 0) -#endif - /* No choice either */ - return INVALID_PORT; - - return ntohs(flags & IPSET_SRC ? - tcph.source : tcph.dest); - } - case IPPROTO_UDP: { - struct udphdr udph; - - if (offset) - return INVALID_PORT; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &udph, sizeof(udph)) < 0) -#else - if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &udph, sizeof(udph)) < 0) -#endif - /* No choice either */ - return INVALID_PORT; - - return ntohs(flags & IPSET_SRC ? - udph.source : udph.dest); - } - default: - return INVALID_PORT; - } -} - static inline __u32 -jhash_ip(const struct ip_set_ipporthash *map, uint16_t i, ip_set_ip_t ip) -{ - return jhash_1word(ip, *(((uint32_t *) map->initval) + i)); -} - -#define HASH_IP(map, ip, port) (port + ((ip - ((map)->first_ip)) << 16)) - -static inline __u32 -hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, - ip_set_ip_t *hash_ip) +ipporthash_id(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port) { struct ip_set_ipporthash *map = set->data; __u32 id; u_int16_t i; ip_set_ip_t *elem; - *hash_ip = HASH_IP(map, ip, port); + *hash_ip = pack_ip_port(map, ip, port); + DP("set: %s, ipport:%u.%u.%u.%u:%u, %u.%u.%u.%u", set->name, HIPQUAD(ip), port, HIPQUAD(*hash_ip)); + if (!*hash_ip) + return UINT_MAX; for (i = 0; i < map->probes; i++) { id = jhash_ip(map, i, *hash_ip) % map->hashsize; @@ -116,91 +56,45 @@ hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, } static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, - ip_set_ip_t *hash_ip) +ipporthash_test(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port) { struct ip_set_ipporthash *map = set->data; if (ip < map->first_ip || ip > map->last_ip) return -ERANGE; - return (hash_id(set, ip, port, hash_ip) != UINT_MAX); + return (ipporthash_id(set, hash_ip, ip, port) != UINT_MAX); } -static int -testip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_ipporthash *req = data; - - if (size != sizeof(struct ip_set_req_ipporthash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipporthash), - size); - return -EINVAL; - } - return __testip(set, req->ip, req->port, hash_ip); -} - -static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t port; - int res; - - if (flags[index+1] == 0) +#define KADT_CONDITION \ + ip_set_ip_t port; \ + \ + if (flags[index+1] == 0) \ + return 0; \ + \ + port = get_port(skb, flags[index+1]); \ + \ + if (port == INVALID_PORT) \ return 0; - - port = get_port(skb, flags[index+1]); - DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", - flags[index] & IPSET_SRC ? "SRC" : "DST", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - NIPQUAD(ip_hdr(skb)->saddr), - NIPQUAD(ip_hdr(skb)->daddr)); -#else - NIPQUAD(skb->nh.iph->saddr), - NIPQUAD(skb->nh.iph->daddr)); -#endif - DP("flag %s port %u", - flags[index+1] & IPSET_SRC ? "SRC" : "DST", - port); - if (port == INVALID_PORT) - return 0; - - res = __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - port, - hash_ip); - return (res < 0 ? 0 : res); - -} +UADT(ipporthash, test, req->port) +KADT(ipporthash, test, ipaddr, port) static inline int -__add_haship(struct ip_set_ipporthash *map, ip_set_ip_t hash_ip) +__ipporthash_add(struct ip_set_ipporthash *map, ip_set_ip_t *ip) { __u32 probe; u_int16_t i; ip_set_ip_t *elem; for (i = 0; i < map->probes; i++) { - probe = jhash_ip(map, i, hash_ip) % map->hashsize; + probe = jhash_ip(map, i, *ip) % map->hashsize; elem = HARRAY_ELEM(map->members, ip_set_ip_t *, probe); - if (*elem == hash_ip) + if (*elem == *ip) return -EEXIST; if (!*elem) { - *elem = hash_ip; + *elem = *ip; map->elements++; return 0; } @@ -210,153 +104,39 @@ __add_haship(struct ip_set_ipporthash *map, ip_set_ip_t hash_ip) } static inline int -__addip(struct ip_set_ipporthash *map, ip_set_ip_t ip, ip_set_ip_t port, - ip_set_ip_t *hash_ip) +ipporthash_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port) { + struct ip_set_ipporthash *map = set->data; if (map->elements > limit) return -ERANGE; if (ip < map->first_ip || ip > map->last_ip) return -ERANGE; - *hash_ip = HASH_IP(map, ip, port); - - return __add_haship(map, *hash_ip); -} + *hash_ip = pack_ip_port(map, ip, port); -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_ipporthash *req = data; - - if (size != sizeof(struct ip_set_req_ipporthash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipporthash), - size); - return -EINVAL; - } - return __addip(set->data, req->ip, req->port, hash_ip); -} - -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t port; - - if (flags[index+1] == 0) - return -EINVAL; - - port = get_port(skb, flags[index+1]); - - DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", - flags[index] & IPSET_SRC ? "SRC" : "DST", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - NIPQUAD(ip_hdr(skb)->saddr), - NIPQUAD(ip_hdr(skb)->daddr)); -#else - NIPQUAD(skb->nh.iph->saddr), - NIPQUAD(skb->nh.iph->daddr)); -#endif - DP("flag %s port %u", - flags[index+1] & IPSET_SRC ? "SRC" : "DST", - port); - if (port == INVALID_PORT) - return -EINVAL; - - return __addip(set->data, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - port, - hash_ip); -} - -static int retry(struct ip_set *set) -{ - struct ip_set_ipporthash *map = set->data; - ip_set_ip_t *elem; - void *members; - u_int32_t i, hashsize = map->hashsize; - int res; - struct ip_set_ipporthash *tmp; - - if (map->resize == 0) + if (!*hash_ip) return -ERANGE; - - again: - res = 0; - - /* Calculate new hash size */ - hashsize += (hashsize * map->resize)/100; - if (hashsize == map->hashsize) - hashsize++; - ip_set_printk("rehashing of set %s triggered: " - "hashsize grows from %u to %u", - set->name, map->hashsize, hashsize); + return __ipporthash_add(map, hash_ip); +} - tmp = kmalloc(sizeof(struct ip_set_ipporthash) - + map->probes * sizeof(uint32_t), GFP_ATOMIC); - if (!tmp) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_ipporthash) - + map->probes * sizeof(uint32_t)); - return -ENOMEM; - } - tmp->members = harray_malloc(hashsize, sizeof(ip_set_ip_t), GFP_ATOMIC); - if (!tmp->members) { - DP("out of memory for %d bytes", hashsize * sizeof(ip_set_ip_t)); - kfree(tmp); - return -ENOMEM; - } - tmp->hashsize = hashsize; - tmp->elements = 0; - tmp->probes = map->probes; - tmp->resize = map->resize; +UADT(ipporthash, add, req->port) +KADT(ipporthash, add, ipaddr, port) + +static inline void +__ipporthash_retry(struct ip_set_ipporthash *tmp, + struct ip_set_ipporthash *map) +{ tmp->first_ip = map->first_ip; tmp->last_ip = map->last_ip; - memcpy(tmp->initval, map->initval, map->probes * sizeof(uint32_t)); - - write_lock_bh(&set->lock); - map = set->data; /* Play safe */ - for (i = 0; i < map->hashsize && res == 0; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - if (*elem) - res = __add_haship(tmp, *elem); - } - if (res) { - /* Failure, try again */ - write_unlock_bh(&set->lock); - harray_free(tmp->members); - kfree(tmp); - goto again; - } - - /* Success at resizing! */ - members = map->members; - - map->hashsize = tmp->hashsize; - map->members = tmp->members; - write_unlock_bh(&set->lock); - - harray_free(members); - kfree(tmp); - - return 0; } +HASH_RETRY(ipporthash, ip_set_ip_t) + static inline int -__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, - ip_set_ip_t *hash_ip) +ipporthash_del(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port) { struct ip_set_ipporthash *map = set->data; ip_set_ip_t id; @@ -365,7 +145,7 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, if (ip < map->first_ip || ip > map->last_ip) return -ERANGE; - id = hash_id(set, ip, port, hash_ip); + id = ipporthash_id(set, hash_ip, ip, port); if (id == UINT_MAX) return -EEXIST; @@ -377,181 +157,40 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t port, return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +UADT(ipporthash, del, req->port) +KADT(ipporthash, del, ipaddr, port) + +static inline int +__ipporthash_create(const struct ip_set_req_ipporthash_create *req, + struct ip_set_ipporthash *map) { - const struct ip_set_req_ipporthash *req = data; - - if (size != sizeof(struct ip_set_req_ipporthash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipporthash), - size); - return -EINVAL; - } - return __delip(set, req->ip, req->port, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t port; - - if (flags[index+1] == 0) - return -EINVAL; - - port = get_port(skb, flags[index+1]); - - DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", - flags[index] & IPSET_SRC ? "SRC" : "DST", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - NIPQUAD(ip_hdr(skb)->saddr), - NIPQUAD(ip_hdr(skb)->daddr)); -#else - NIPQUAD(skb->nh.iph->saddr), - NIPQUAD(skb->nh.iph->daddr)); -#endif - DP("flag %s port %u", - flags[index+1] & IPSET_SRC ? "SRC" : "DST", - port); - if (port == INVALID_PORT) - return -EINVAL; - - return __delip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - port, - hash_ip); -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - const struct ip_set_req_ipporthash_create *req = data; - struct ip_set_ipporthash *map; - uint16_t i; - - if (size != sizeof(struct ip_set_req_ipporthash_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_ipporthash_create), - size); - return -EINVAL; - } - - if (req->hashsize < 1) { - ip_set_printk("hashsize too small"); + if (req->to - req->from > MAX_RANGE) { + ip_set_printk("range too big, %d elements (max %d)", + req->to - req->from + 1, MAX_RANGE+1); return -ENOEXEC; } - - if (req->probes < 1) { - ip_set_printk("probes too small"); - return -ENOEXEC; - } - - map = kmalloc(sizeof(struct ip_set_ipporthash) - + req->probes * sizeof(uint32_t), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_ipporthash) - + req->probes * sizeof(uint32_t)); - return -ENOMEM; - } - for (i = 0; i < req->probes; i++) - get_random_bytes(((uint32_t *) map->initval)+i, 4); - map->elements = 0; - map->hashsize = req->hashsize; - map->probes = req->probes; - map->resize = req->resize; map->first_ip = req->from; map->last_ip = req->to; - map->members = harray_malloc(map->hashsize, sizeof(ip_set_ip_t), GFP_KERNEL); - if (!map->members) { - DP("out of memory for %d bytes", map->hashsize * sizeof(ip_set_ip_t)); - kfree(map); - return -ENOMEM; - } - - set->data = map; return 0; } -static void destroy(struct ip_set *set) +HASH_CREATE(ipporthash, ip_set_ip_t) +HASH_DESTROY(ipporthash) +HASH_FLUSH(ipporthash, ip_set_ip_t) + +static inline void +__ipporthash_list_header(const struct ip_set_ipporthash *map, + struct ip_set_req_ipporthash_create *header) { - struct ip_set_ipporthash *map = set->data; - - harray_free(map->members); - kfree(map); - - set->data = NULL; -} - -static void flush(struct ip_set *set) -{ - struct ip_set_ipporthash *map = set->data; - harray_flush(map->members, map->hashsize, sizeof(ip_set_ip_t)); - map->elements = 0; -} - -static void list_header(const struct ip_set *set, void *data) -{ - const struct ip_set_ipporthash *map = set->data; - struct ip_set_req_ipporthash_create *header = data; - - header->hashsize = map->hashsize; - header->probes = map->probes; - header->resize = map->resize; header->from = map->first_ip; header->to = map->last_ip; } -static int list_members_size(const struct ip_set *set) -{ - const struct ip_set_ipporthash *map = set->data; +HASH_LIST_HEADER(ipporthash) +HASH_LIST_MEMBERS_SIZE(ipporthash, ip_set_ip_t) +HASH_LIST_MEMBERS(ipporthash, ip_set_ip_t) - return (map->hashsize * sizeof(ip_set_ip_t)); -} - -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_ipporthash *map = set->data; - ip_set_ip_t i, *elem; - - for (i = 0; i < map->hashsize; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - ((ip_set_ip_t *)data)[i] = *elem; - } -} - -static struct ip_set_type ip_set_ipporthash = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_DATA_DOUBLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_ipporthash), - .addip = &addip, - .addip_kernel = &addip_kernel, - .retry = &retry, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_ipporthash_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_RTYPE(ipporthash, IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_DATA_DOUBLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); @@ -559,17 +198,4 @@ MODULE_DESCRIPTION("ipporthash type of IP sets"); module_param(limit, int, 0600); MODULE_PARM_DESC(limit, "maximal number of elements stored in the sets"); -static int __init ip_set_ipporthash_init(void) -{ - init_max_page_size(); - return ip_set_register_set_type(&ip_set_ipporthash); -} - -static void __exit ip_set_ipporthash_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_ipporthash); -} - -module_init(ip_set_ipporthash_init); -module_exit(ip_set_ipporthash_fini); +REGISTER_MODULE(ipporthash) diff --git a/extensions/ipset/ip_set_ipporthash.h b/extensions/ipset/ip_set_ipporthash.h index ba838e3..b2984be 100644 --- a/extensions/ipset/ip_set_ipporthash.h +++ b/extensions/ipset/ip_set_ipporthash.h @@ -2,10 +2,9 @@ #define __IP_SET_IPPORTHASH_H #include "ip_set.h" +#include "ip_set_hashes.h" #define SETTYPE_NAME "ipporthash" -#define MAX_RANGE 0x0000FFFF -#define INVALID_PORT (MAX_RANGE + 1) struct ip_set_ipporthash { ip_set_ip_t *members; /* the ipporthash proper */ @@ -15,7 +14,7 @@ struct ip_set_ipporthash { uint16_t resize; /* resize factor in percent */ ip_set_ip_t first_ip; /* host byte order, included in range */ ip_set_ip_t last_ip; /* host byte order, included in range */ - void *initval[0]; /* initvals for jhash_1word */ + initval_t initval[0]; /* initvals for jhash_1word */ }; struct ip_set_req_ipporthash_create { diff --git a/extensions/ipset/ip_set_ipportiphash.c b/extensions/ipset/ip_set_ipportiphash.c new file mode 100644 index 0000000..a5cfe59 --- /dev/null +++ b/extensions/ipset/ip_set_ipportiphash.c @@ -0,0 +1,214 @@ +/* Copyright (C) 2008 Jozsef Kadlecsik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* Kernel module implementing an ip+port+ip hash set */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "ip_set_ipportiphash.h" +#include "ip_set_getport.h" + +static int limit = MAX_RANGE; + +#define jhash_ip2(map, i, ipport, ip1) \ + jhash_2words(ipport, ip1, *(map->initval + i)) + +static inline __u32 +ipportiphash_id(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportiphash *map = set->data; + __u32 id; + u_int16_t i; + struct ipportip *elem; + + *hash_ip = pack_ip_port(map, ip, port); + DP("set: %s, ipport:%u.%u.%u.%u:%u, %u.%u.%u.%u", + set->name, HIPQUAD(ip), port, HIPQUAD(*hash_ip)); + if (!(*hash_ip || ip1)) + return UINT_MAX; + + for (i = 0; i < map->probes; i++) { + id = jhash_ip2(map, i, *hash_ip, ip1) % map->hashsize; + DP("hash key: %u", id); + elem = HARRAY_ELEM(map->members, struct ipportip *, id); + if (elem->ip == *hash_ip && elem->ip1 == ip1) + return id; + /* No shortcut at testing - there can be deleted + * entries. */ + } + return UINT_MAX; +} + +static inline int +ipportiphash_test(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportiphash *map = set->data; + + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + + return (ipportiphash_id(set, hash_ip, ip, port, ip1) != UINT_MAX); +} + +#define KADT_CONDITION \ + ip_set_ip_t port, ip1; \ + \ + if (flags[index+2] == 0) \ + return 0; \ + \ + port = get_port(skb, flags[index+1]); \ + ip1 = ipaddr(skb, flags[index+2]); \ + \ + if (port == INVALID_PORT) \ + return 0; + +UADT(ipportiphash, test, req->port, req->ip1) +KADT(ipportiphash, test, ipaddr, port, ip1) + +static inline int +__ipportip_add(struct ip_set_ipportiphash *map, + ip_set_ip_t hash_ip, ip_set_ip_t ip1) +{ + __u32 probe; + u_int16_t i; + struct ipportip *elem; + + for (i = 0; i < map->probes; i++) { + probe = jhash_ip2(map, i, hash_ip, ip1) % map->hashsize; + elem = HARRAY_ELEM(map->members, struct ipportip *, probe); + if (elem->ip == hash_ip && elem->ip1 == ip1) + return -EEXIST; + if (!(elem->ip || elem->ip1)) { + elem->ip = hash_ip; + elem->ip1 = ip1; + map->elements++; + return 0; + } + } + /* Trigger rehashing */ + return -EAGAIN; +} + +static inline int +__ipportiphash_add(struct ip_set_ipportiphash *map, + struct ipportip *elem) +{ + return __ipportip_add(map, elem->ip, elem->ip1); +} + +static inline int +ipportiphash_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportiphash *map = set->data; + + if (map->elements > limit) + return -ERANGE; + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + + *hash_ip = pack_ip_port(map, ip, port); + if (!(*hash_ip || ip1)) + return -ERANGE; + + return __ipportip_add(map, *hash_ip, ip1); +} + +UADT(ipportiphash, add, req->port, req->ip1) +KADT(ipportiphash, add, ipaddr, port, ip1) + +static inline void +__ipportiphash_retry(struct ip_set_ipportiphash *tmp, + struct ip_set_ipportiphash *map) +{ + tmp->first_ip = map->first_ip; + tmp->last_ip = map->last_ip; +} + +HASH_RETRY2(ipportiphash, struct ipportip) + +static inline int +ipportiphash_del(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportiphash *map = set->data; + ip_set_ip_t id; + struct ipportip *elem; + + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + + id = ipportiphash_id(set, hash_ip, ip, port, ip1); + + if (id == UINT_MAX) + return -EEXIST; + + elem = HARRAY_ELEM(map->members, struct ipportip *, id); + elem->ip = elem->ip1 = 0; + map->elements--; + + return 0; +} + +UADT(ipportiphash, del, req->port, req->ip1) +KADT(ipportiphash, del, ipaddr, port, ip1) + +static inline int +__ipportiphash_create(const struct ip_set_req_ipportiphash_create *req, + struct ip_set_ipportiphash *map) +{ + if (req->to - req->from > MAX_RANGE) { + ip_set_printk("range too big, %d elements (max %d)", + req->to - req->from + 1, MAX_RANGE+1); + return -ENOEXEC; + } + map->first_ip = req->from; + map->last_ip = req->to; + return 0; +} + +HASH_CREATE(ipportiphash, struct ipportip) +HASH_DESTROY(ipportiphash) +HASH_FLUSH(ipportiphash, struct ipportip) + +static inline void +__ipportiphash_list_header(const struct ip_set_ipportiphash *map, + struct ip_set_req_ipportiphash_create *header) +{ + header->from = map->first_ip; + header->to = map->last_ip; +} + +HASH_LIST_HEADER(ipportiphash) +HASH_LIST_MEMBERS_SIZE(ipportiphash, struct ipportip) +HASH_LIST_MEMBERS_MEMCPY(ipportiphash, struct ipportip) + +IP_SET_RTYPE(ipportiphash, IPSET_TYPE_IP | IPSET_TYPE_PORT + | IPSET_TYPE_IP1 | IPSET_DATA_TRIPLE) + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jozsef Kadlecsik "); +MODULE_DESCRIPTION("ipportiphash type of IP sets"); +module_param(limit, int, 0600); +MODULE_PARM_DESC(limit, "maximal number of elements stored in the sets"); + +REGISTER_MODULE(ipportiphash) diff --git a/extensions/ipset/ip_set_ipportiphash.h b/extensions/ipset/ip_set_ipportiphash.h new file mode 100644 index 0000000..2ed452a --- /dev/null +++ b/extensions/ipset/ip_set_ipportiphash.h @@ -0,0 +1,39 @@ +#ifndef __IP_SET_IPPORTIPHASH_H +#define __IP_SET_IPPORTIPHASH_H + +#include "ip_set.h" +#include "ip_set_hashes.h" + +#define SETTYPE_NAME "ipportiphash" + +struct ipportip { + ip_set_ip_t ip; + ip_set_ip_t ip1; +}; + +struct ip_set_ipportiphash { + struct ipportip *members; /* the ipportip proper */ + uint32_t elements; /* number of elements */ + uint32_t hashsize; /* hash size */ + uint16_t probes; /* max number of probes */ + uint16_t resize; /* resize factor in percent */ + ip_set_ip_t first_ip; /* host byte order, included in range */ + ip_set_ip_t last_ip; /* host byte order, included in range */ + initval_t initval[0]; /* initvals for jhash_1word */ +}; + +struct ip_set_req_ipportiphash_create { + uint32_t hashsize; + uint16_t probes; + uint16_t resize; + ip_set_ip_t from; + ip_set_ip_t to; +}; + +struct ip_set_req_ipportiphash { + ip_set_ip_t ip; + ip_set_ip_t port; + ip_set_ip_t ip1; +}; + +#endif /* __IP_SET_IPPORTIPHASH_H */ diff --git a/extensions/ipset/ip_set_ipportnethash.c b/extensions/ipset/ip_set_ipportnethash.c new file mode 100644 index 0000000..eb4ddce --- /dev/null +++ b/extensions/ipset/ip_set_ipportnethash.c @@ -0,0 +1,305 @@ +/* Copyright (C) 2008 Jozsef Kadlecsik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* Kernel module implementing an ip+port+net hash set */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "ip_set_ipportnethash.h" +#include "ip_set_getport.h" + +static int limit = MAX_RANGE; + +#define jhash_ip2(map, i, ipport, ip1) \ + jhash_2words(ipport, ip1, *(map->initval + i)) + +static inline __u32 +ipportnethash_id_cidr(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, + ip_set_ip_t ip1, uint8_t cidr) +{ + struct ip_set_ipportnethash *map = set->data; + __u32 id; + u_int16_t i; + struct ipportip *elem; + + *hash_ip = pack_ip_port(map, ip, port); + DP("set: %s, ipport:%u.%u.%u.%u:%u, %u.%u.%u.%u", + set->name, HIPQUAD(ip), port, HIPQUAD(*hash_ip)); + ip1 = pack_ip_cidr(ip1, cidr); + + for (i = 0; i < map->probes; i++) { + id = jhash_ip2(map, i, *hash_ip, ip1) % map->hashsize; + DP("hash key: %u", id); + elem = HARRAY_ELEM(map->members, struct ipportip *, id); + if (elem->ip == *hash_ip && elem->ip1 == ip1) + return id; + /* No shortcut at testing - there can be deleted + * entries. */ + } + return UINT_MAX; +} + +static inline __u32 +ipportnethash_id(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportnethash *map = set->data; + __u32 id = UINT_MAX; + int i; + + for (i = 0; i < 30 && map->cidr[i]; i++) { + id = ipportnethash_id_cidr(set, hash_ip, ip, port, ip1, + map->cidr[i]); + if (id != UINT_MAX) + break; + } + return id; +} + +static inline int +ipportnethash_test_cidr(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, + ip_set_ip_t ip1, uint8_t cidr) +{ + struct ip_set_ipportnethash *map = set->data; + + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + + return (ipportnethash_id_cidr(set, hash_ip, ip, port, ip1, + cidr) != UINT_MAX); +} + +static inline int +ipportnethash_test(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, ip_set_ip_t ip1) +{ + struct ip_set_ipportnethash *map = set->data; + + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + + return (ipportnethash_id(set, hash_ip, ip, port, ip1) != UINT_MAX); +} + +static int +ipportnethash_utest(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) +{ + const struct ip_set_ipportnethash *map = set->data; + const struct ip_set_req_ipportnethash *req = data; + + if (req->cidr <= 0 || req->cidr > 32) + return -EINVAL; + if (!(pack_ip_port(map, req->ip, req->port))) + return -ERANGE; + return (req->cidr == 32 + ? ipportnethash_test(set, hash_ip, req->ip, req->port, + req->ip1) + : ipportnethash_test_cidr(set, hash_ip, req->ip, req->port, + req->ip1, req->cidr)); +} + +#define KADT_CONDITION \ + ip_set_ip_t port, ip1; \ + struct ip_set_ipportnethash *map = set->data; \ + \ + if (flags[index+2] == 0) \ + return 0; \ + \ + port = get_port(skb, flags[index+1]); \ + ip1 = ipaddr(skb, flags[index+2]); \ + \ + if (port == INVALID_PORT) \ + return 0; \ + if (!(pack_ip_port(map, ip, port))) \ + return 0; + +KADT(ipportnethash, test, ipaddr, port, ip1) + +static inline int +__ipportnet_add(struct ip_set_ipportnethash *map, + ip_set_ip_t hash_ip, ip_set_ip_t ip1) +{ + __u32 probe; + u_int16_t i; + struct ipportip *elem; + + for (i = 0; i < map->probes; i++) { + probe = jhash_ip2(map, i, hash_ip, ip1) % map->hashsize; + elem = HARRAY_ELEM(map->members, struct ipportip *, probe); + if (elem->ip == hash_ip && elem->ip1 == ip1) + return -EEXIST; + if (!(elem->ip || elem->ip1)) { + elem->ip = hash_ip; + elem->ip1 = ip1; + map->elements++; + return 0; + } + } + /* Trigger rehashing */ + return -EAGAIN; +} + +static inline int +__ipportnethash_add(struct ip_set_ipportnethash *map, + struct ipportip *elem) +{ + return __ipportnet_add(map, elem->ip, elem->ip1); +} + +static inline int +ipportnethash_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, + ip_set_ip_t ip1, uint8_t cidr) +{ + struct ip_set_ipportnethash *map = set->data; + struct ipportip; + int ret; + + if (map->elements > limit) + return -ERANGE; + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + if (cidr <= 0 || cidr >= 32) + return -EINVAL; + if (map->nets[cidr-1] == UINT16_MAX) + return -ERANGE; + + *hash_ip = pack_ip_port(map, ip, port); + if (!(*hash_ip || ip1)) + return -ERANGE; + + ret =__ipportnet_add(map, *hash_ip, pack_ip_cidr(ip1, cidr)); + if (ret == 0) { + if (!map->nets[cidr-1]++) + add_cidr_size(map->cidr, cidr); + map->elements++; + } + return ret; +} + +#undef KADT_CONDITION +#define KADT_CONDITION \ + struct ip_set_ipportnethash *map = set->data; \ + uint8_t cidr = map->cidr[0] ? map->cidr[0] : 31; \ + ip_set_ip_t port, ip1; \ + \ + if (flags[index+2] == 0) \ + return 0; \ + \ + port = get_port(skb, flags[index+1]); \ + ip1 = ipaddr(skb, flags[index+2]); \ + \ + if (port == INVALID_PORT) \ + return 0; + +UADT(ipportnethash, add, req->port, req->ip1, req->cidr) +KADT(ipportnethash, add, ipaddr, port, ip1, cidr) + +static inline void +__ipportnethash_retry(struct ip_set_ipportnethash *tmp, + struct ip_set_ipportnethash *map) +{ + tmp->first_ip = map->first_ip; + tmp->last_ip = map->last_ip; + memcpy(tmp->cidr, map->cidr, sizeof(tmp->cidr)); + memcpy(tmp->nets, map->nets, sizeof(tmp->nets)); +} + +HASH_RETRY2(ipportnethash, struct ipportip) + +static inline int +ipportnethash_del(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, ip_set_ip_t port, + ip_set_ip_t ip1, uint8_t cidr) +{ + struct ip_set_ipportnethash *map = set->data; + ip_set_ip_t id; + struct ipportip *elem; + + if (ip < map->first_ip || ip > map->last_ip) + return -ERANGE; + if (!ip) + return -ERANGE; + if (cidr <= 0 || cidr >= 32) + return -EINVAL; + + id = ipportnethash_id_cidr(set, hash_ip, ip, port, ip1, cidr); + + if (id == UINT_MAX) + return -EEXIST; + + elem = HARRAY_ELEM(map->members, struct ipportip *, id); + elem->ip = elem->ip1 = 0; + map->elements--; + if (!map->nets[cidr-1]--) + del_cidr_size(map->cidr, cidr); + + return 0; +} + +UADT(ipportnethash, del, req->port, req->ip1, req->cidr) +KADT(ipportnethash, del, ipaddr, port, ip1, cidr) + +static inline int +__ipportnethash_create(const struct ip_set_req_ipportnethash_create *req, + struct ip_set_ipportnethash *map) +{ + if (req->to - req->from > MAX_RANGE) { + ip_set_printk("range too big, %d elements (max %d)", + req->to - req->from + 1, MAX_RANGE+1); + return -ENOEXEC; + } + map->first_ip = req->from; + map->last_ip = req->to; + memset(map->cidr, 0, sizeof(map->cidr)); + memset(map->nets, 0, sizeof(map->nets)); + return 0; +} + +HASH_CREATE(ipportnethash, struct ipportip) +HASH_DESTROY(ipportnethash) +HASH_FLUSH_CIDR(ipportnethash, struct ipportip); + +static inline void +__ipportnethash_list_header(const struct ip_set_ipportnethash *map, + struct ip_set_req_ipportnethash_create *header) +{ + header->from = map->first_ip; + header->to = map->last_ip; +} + +HASH_LIST_HEADER(ipportnethash) + +HASH_LIST_MEMBERS_SIZE(ipportnethash, struct ipportip) +HASH_LIST_MEMBERS_MEMCPY(ipportnethash, struct ipportip) + +IP_SET_RTYPE(ipportnethash, IPSET_TYPE_IP | IPSET_TYPE_PORT + | IPSET_TYPE_IP1 | IPSET_DATA_TRIPLE) + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jozsef Kadlecsik "); +MODULE_DESCRIPTION("ipportnethash type of IP sets"); +module_param(limit, int, 0600); +MODULE_PARM_DESC(limit, "maximal number of elements stored in the sets"); + +REGISTER_MODULE(ipportnethash) diff --git a/extensions/ipset/ip_set_ipportnethash.h b/extensions/ipset/ip_set_ipportnethash.h new file mode 100644 index 0000000..0498177 --- /dev/null +++ b/extensions/ipset/ip_set_ipportnethash.h @@ -0,0 +1,42 @@ +#ifndef __IP_SET_IPPORTNETHASH_H +#define __IP_SET_IPPORTNETHASH_H + +#include "ip_set.h" +#include "ip_set_hashes.h" + +#define SETTYPE_NAME "ipportnethash" + +struct ipportip { + ip_set_ip_t ip; + ip_set_ip_t ip1; +}; + +struct ip_set_ipportnethash { + struct ipportip *members; /* the ipportip proper */ + uint32_t elements; /* number of elements */ + uint32_t hashsize; /* hash size */ + uint16_t probes; /* max number of probes */ + uint16_t resize; /* resize factor in percent */ + ip_set_ip_t first_ip; /* host byte order, included in range */ + ip_set_ip_t last_ip; /* host byte order, included in range */ + uint8_t cidr[30]; /* CIDR sizes */ + uint16_t nets[30]; /* nr of nets by CIDR sizes */ + initval_t initval[0]; /* initvals for jhash_1word */ +}; + +struct ip_set_req_ipportnethash_create { + uint32_t hashsize; + uint16_t probes; + uint16_t resize; + ip_set_ip_t from; + ip_set_ip_t to; +}; + +struct ip_set_req_ipportnethash { + ip_set_ip_t ip; + ip_set_ip_t port; + ip_set_ip_t ip1; + uint8_t cidr; +}; + +#endif /* __IP_SET_IPPORTNETHASH_H */ diff --git a/extensions/ipset/ip_set_iptree.c b/extensions/ipset/ip_set_iptree.c index 5170294..269c785 100644 --- a/extensions/ipset/ip_set_iptree.c +++ b/extensions/ipset/ip_set_iptree.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005 Jozsef Kadlecsik +/* Copyright (C) 2005-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -7,24 +7,20 @@ /* Kernel module implementing an IP set type: the iptree type */ -#include #include +#include #include #include #include #include -#include -#include "ip_set.h" #include #include #include #include +#include -/* Backward compatibility */ -#ifndef __nocast -#define __nocast -#endif - +#include "ip_set.h" +#include "ip_set_bitmaps.h" #include "ip_set_iptree.h" static int limit = MAX_RANGE; @@ -35,13 +31,9 @@ static int limit = MAX_RANGE; * to delete the gc timer at destroying/flushing a set */ #define IPTREE_DESTROY_SLEEP 100 -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) -static struct kmem_cache *branch_cachep; -static struct kmem_cache *leaf_cachep; -#else -static kmem_cache_t *branch_cachep; -static kmem_cache_t *leaf_cachep; -#endif +static __KMEM_CACHE_T__ *branch_cachep; +static __KMEM_CACHE_T__ *leaf_cachep; + #if defined(__LITTLE_ENDIAN) #define ABCD(a,b,c,d,addrp) do { \ @@ -69,7 +61,7 @@ static kmem_cache_t *leaf_cachep; } while (0) static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iptree_test(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iptree *map = set->data; struct ip_set_iptreeb *btree; @@ -92,52 +84,10 @@ __testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) || time_after(dtree->expires[d], jiffies)); } -static int -testip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iptree *req = data; +#define KADT_CONDITION - if (size != sizeof(struct ip_set_req_iptree)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iptree), - size); - return -EINVAL; - } - return __testip(set, req->ip, hash_ip); -} - -static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - int res; - - DP("flag: %s src: %u.%u.%u.%u dst: %u.%u.%u.%u", - flags[index] & IPSET_SRC ? "SRC" : "DST", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - NIPQUAD(ip_hdr(skb)->saddr), - NIPQUAD(ip_hdr(skb)->daddr)); -#else - NIPQUAD(skb->nh.iph->saddr), - NIPQUAD(skb->nh.iph->daddr)); -#endif - - res = __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); - return (res < 0 ? 0 : res); -} +UADT(iptree, test) +KADT(iptree, test, ipaddr) #define ADDIP_WALK(map, elem, branch, type, cachep) do { \ if ((map)->tree[elem]) { \ @@ -155,8 +105,8 @@ testip_kernel(struct ip_set *set, } while (0) static inline int -__addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout, - ip_set_ip_t *hash_ip) +iptree_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, unsigned int timeout) { struct ip_set_iptree *map = set->data; struct ip_set_iptreeb *btree; @@ -179,6 +129,8 @@ __addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout, if (dtree->expires[d] && (!map->timeout || time_after(dtree->expires[d], jiffies))) ret = -EEXIST; + if (map->timeout && timeout == 0) + timeout = map->timeout; dtree->expires[d] = map->timeout ? (timeout * HZ + jiffies) : 1; /* Lottery: I won! */ if (dtree->expires[d] == 0) @@ -189,46 +141,8 @@ __addip(struct ip_set *set, ip_set_ip_t ip, unsigned int timeout, return ret; } -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - struct ip_set_iptree *map = set->data; - const struct ip_set_req_iptree *req = data; - - if (size != sizeof(struct ip_set_req_iptree)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iptree), - size); - return -EINVAL; - } - DP("%u.%u.%u.%u %u", HIPQUAD(req->ip), req->timeout); - return __addip(set, req->ip, - req->timeout ? req->timeout : map->timeout, - hash_ip); -} - -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - struct ip_set_iptree *map = set->data; - - return __addip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - map->timeout, - hash_ip); -} +UADT(iptree, add, req->timeout) +KADT(iptree, add, ipaddr, 0) #define DELIP_WALK(map, elem, branch) do { \ if ((map)->tree[elem]) { \ @@ -238,7 +152,7 @@ addip_kernel(struct ip_set *set, } while (0) static inline int -__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iptree_del(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iptree *map = set->data; struct ip_set_iptreeb *btree; @@ -263,39 +177,8 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return -EEXIST; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iptree *req = data; - - if (size != sizeof(struct ip_set_req_iptree)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_iptree), - size); - return -EINVAL; - } - return __delip(set, req->ip, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __delip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} +UADT(iptree, del) +KADT(iptree, del, ipaddr) #define LOOP_WALK_BEGIN(map, i, branch) \ for (i = 0; i < 256; i++) { \ @@ -305,7 +188,8 @@ delip_kernel(struct ip_set *set, #define LOOP_WALK_END } -static void ip_tree_gc(unsigned long ul_set) +static void +ip_tree_gc(unsigned long ul_set) { struct ip_set *set = (struct ip_set *) ul_set; struct ip_set_iptree *map = set->data; @@ -375,7 +259,8 @@ static void ip_tree_gc(unsigned long ul_set) add_timer(&map->gc); } -static inline void init_gc_timer(struct ip_set *set) +static inline void +init_gc_timer(struct ip_set *set) { struct ip_set_iptree *map = set->data; @@ -390,7 +275,8 @@ static inline void init_gc_timer(struct ip_set *set) add_timer(&map->gc); } -static int create(struct ip_set *set, const void *data, size_t size) +static int +iptree_create(struct ip_set *set, const void *data, size_t size) { const struct ip_set_req_iptree_create *req = data; struct ip_set_iptree *map; @@ -418,7 +304,8 @@ static int create(struct ip_set *set, const void *data, size_t size) return 0; } -static void __flush(struct ip_set_iptree *map) +static inline void +__flush(struct ip_set_iptree *map) { struct ip_set_iptreeb *btree; struct ip_set_iptreec *ctree; @@ -437,7 +324,8 @@ static void __flush(struct ip_set_iptree *map) map->elements = 0; } -static void destroy(struct ip_set *set) +static void +iptree_destroy(struct ip_set *set) { struct ip_set_iptree *map = set->data; @@ -449,7 +337,8 @@ static void destroy(struct ip_set *set) set->data = NULL; } -static void flush(struct ip_set *set) +static void +iptree_flush(struct ip_set *set) { struct ip_set_iptree *map = set->data; unsigned int timeout = map->timeout; @@ -464,7 +353,8 @@ static void flush(struct ip_set *set) init_gc_timer(set); } -static void list_header(const struct ip_set *set, void *data) +static void +iptree_list_header(const struct ip_set *set, void *data) { const struct ip_set_iptree *map = set->data; struct ip_set_req_iptree_create *header = data; @@ -472,7 +362,8 @@ static void list_header(const struct ip_set *set, void *data) header->timeout = map->timeout; } -static int list_members_size(const struct ip_set *set) +static int +iptree_list_members_size(const struct ip_set *set) { const struct ip_set_iptree *map = set->data; struct ip_set_iptreeb *btree; @@ -497,7 +388,8 @@ static int list_members_size(const struct ip_set *set) return (count * sizeof(struct ip_set_req_iptree)); } -static void list_members(const struct ip_set *set, void *data) +static void +iptree_list_members(const struct ip_set *set, void *data) { const struct ip_set_iptree *map = set->data; struct ip_set_iptreeb *btree; @@ -525,26 +417,7 @@ static void list_members(const struct ip_set *set, void *data) LOOP_WALK_END; } -static struct ip_set_type ip_set_iptree = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_iptree), - .addip = &addip, - .addip_kernel = &addip_kernel, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_iptree_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_TYPE(iptree, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); @@ -556,29 +429,15 @@ static int __init ip_set_iptree_init(void) { int ret; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - branch_cachep = kmem_cache_create("ip_set_iptreeb", - sizeof(struct ip_set_iptreeb), - 0, 0, NULL); -#else - branch_cachep = kmem_cache_create("ip_set_iptreeb", - sizeof(struct ip_set_iptreeb), - 0, 0, NULL, NULL); -#endif + branch_cachep = KMEM_CACHE_CREATE("ip_set_iptreeb", + sizeof(struct ip_set_iptreeb)); if (!branch_cachep) { printk(KERN_ERR "Unable to create ip_set_iptreeb slab cache\n"); ret = -ENOMEM; goto out; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - leaf_cachep = kmem_cache_create("ip_set_iptreed", - sizeof(struct ip_set_iptreed), - 0, 0, NULL); -#else - leaf_cachep = kmem_cache_create("ip_set_iptreed", - sizeof(struct ip_set_iptreed), - 0, 0, NULL, NULL); -#endif + leaf_cachep = KMEM_CACHE_CREATE("ip_set_iptreed", + sizeof(struct ip_set_iptreed)); if (!leaf_cachep) { printk(KERN_ERR "Unable to create ip_set_iptreed slab cache\n"); ret = -ENOMEM; diff --git a/extensions/ipset/ip_set_iptree.h b/extensions/ipset/ip_set_iptree.h index f33affe..ec4b242 100644 --- a/extensions/ipset/ip_set_iptree.h +++ b/extensions/ipset/ip_set_iptree.h @@ -4,7 +4,6 @@ #include "ip_set.h" #define SETTYPE_NAME "iptree" -#define MAX_RANGE 0x0000FFFF struct ip_set_iptreed { unsigned long expires[256]; /* x.x.x.ADDR */ diff --git a/extensions/ipset/ip_set_iptreemap.c b/extensions/ipset/ip_set_iptreemap.c index bc102fc..564c2e1 100644 --- a/extensions/ipset/ip_set_iptreemap.c +++ b/extensions/ipset/ip_set_iptreemap.c @@ -11,34 +11,28 @@ * index to find the bitmap and the last octet is used as the bit number. */ -#include #include #include #include #include #include #include -#include -#include "ip_set.h" #include #include #include #include +#include +#include "ip_set.h" +#include "ip_set_bitmaps.h" #include "ip_set_iptreemap.h" #define IPTREEMAP_DEFAULT_GC_TIME (5 * 60) #define IPTREEMAP_DESTROY_SLEEP (100) -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20) -static struct kmem_cache *cachep_b; -static struct kmem_cache *cachep_c; -static struct kmem_cache *cachep_d; -#else -static kmem_cache_t *cachep_b; -static kmem_cache_t *cachep_c; -static kmem_cache_t *cachep_d; -#endif +static __KMEM_CACHE_T__ *cachep_b; +static __KMEM_CACHE_T__ *cachep_c; +static __KMEM_CACHE_T__ *cachep_d; static struct ip_set_iptreemap_d *fullbitmap_d; static struct ip_set_iptreemap_c *fullbitmap_c; @@ -256,7 +250,7 @@ free_b(struct ip_set_iptreemap_b *map) } static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +iptreemap_test(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -275,40 +269,13 @@ __testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return !!test_bit(d, (void *) dtree->bitmap); } -static int -testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iptreemap *req = data; +#define KADT_CONDITION - if (size != sizeof(struct ip_set_req_iptreemap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", sizeof(struct ip_set_req_iptreemap), size); - return -EINVAL; - } - - return __testip(set, req->start, hash_ip); -} - -static int -testip_kernel(struct ip_set *set, const struct sk_buff *skb, ip_set_ip_t *hash_ip, const u_int32_t *flags, unsigned char index) -{ - int res; - - res = __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); - - return (res < 0 ? 0 : res); -} +UADT(iptreemap, test) +KADT(iptreemap, test, ipaddr) static inline int -__addip_single(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +__addip_single(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_iptreemap *map = (struct ip_set_iptreemap *) set->data; struct ip_set_iptreemap_b *btree; @@ -333,7 +300,8 @@ __addip_single(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) } static inline int -__addip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_t *hash_ip) +iptreemap_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t start, ip_set_ip_t end) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -344,7 +312,7 @@ __addip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_ unsigned char a2, b2, c2, d2; if (start == end) - return __addip_single(set, start, hash_ip); + return __addip_single(set, hash_ip, start); *hash_ip = start; @@ -365,37 +333,12 @@ __addip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_ return 0; } -static int -addip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iptreemap *req = data; - - if (size != sizeof(struct ip_set_req_iptreemap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", sizeof(struct ip_set_req_iptreemap), size); - return -EINVAL; - } - - return __addip_range(set, min(req->start, req->end), max(req->start, req->end), hash_ip); -} - -static int -addip_kernel(struct ip_set *set, const struct sk_buff *skb, ip_set_ip_t *hash_ip, const u_int32_t *flags, unsigned char index) -{ - - return __addip_single(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} +UADT0(iptreemap, add, min(req->ip, req->end), max(req->ip, req->end)) +KADT(iptreemap, add, ipaddr, ip) static inline int -__delip_single(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip, unsigned int __nocast flags) +__delip_single(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, unsigned int __nocast flags) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -420,7 +363,8 @@ __delip_single(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip, unsigne } static inline int -__delip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_t *hash_ip, unsigned int __nocast flags) +iptreemap_del(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t start, ip_set_ip_t end, unsigned int __nocast flags) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -431,7 +375,7 @@ __delip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_ unsigned char a2, b2, c2, d2; if (start == end) - return __delip_single(set, start, hash_ip, flags); + return __delip_single(set, hash_ip, start, flags); *hash_ip = start; @@ -452,34 +396,8 @@ __delip_range(struct ip_set *set, ip_set_ip_t start, ip_set_ip_t end, ip_set_ip_ return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_iptreemap *req = data; - - if (size != sizeof(struct ip_set_req_iptreemap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", sizeof(struct ip_set_req_iptreemap), size); - return -EINVAL; - } - - return __delip_range(set, min(req->start, req->end), max(req->start, req->end), hash_ip, GFP_KERNEL); -} - -static int -delip_kernel(struct ip_set *set, const struct sk_buff *skb, ip_set_ip_t *hash_ip, const u_int32_t *flags, unsigned char index) -{ - return __delip_single(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip, - GFP_ATOMIC); -} +UADT0(iptreemap, del, min(req->ip, req->end), max(req->ip, req->end), GFP_KERNEL) +KADT(iptreemap, del, ipaddr, ip, GFP_ATOMIC) /* Check the status of the bitmap * -1 == all bits cleared @@ -551,16 +469,12 @@ init_gc_timer(struct ip_set *set) add_timer(&map->gc); } -static int create(struct ip_set *set, const void *data, size_t size) +static int +iptreemap_create(struct ip_set *set, const void *data, size_t size) { const struct ip_set_req_iptreemap_create *req = data; struct ip_set_iptreemap *map; - if (size != sizeof(struct ip_set_req_iptreemap_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", sizeof(struct ip_set_req_iptreemap_create), size); - return -EINVAL; - } - map = kzalloc(sizeof(*map), GFP_KERNEL); if (!map) return -ENOMEM; @@ -573,7 +487,8 @@ static int create(struct ip_set *set, const void *data, size_t size) return 0; } -static inline void __flush(struct ip_set_iptreemap *map) +static inline void +__flush(struct ip_set_iptreemap *map) { struct ip_set_iptreemap_b *btree; unsigned int a; @@ -584,7 +499,8 @@ static inline void __flush(struct ip_set_iptreemap *map) LOOP_WALK_END(); } -static void destroy(struct ip_set *set) +static void +iptreemap_destroy(struct ip_set *set) { struct ip_set_iptreemap *map = set->data; @@ -597,7 +513,8 @@ static void destroy(struct ip_set *set) set->data = NULL; } -static void flush(struct ip_set *set) +static void +iptreemap_flush(struct ip_set *set) { struct ip_set_iptreemap *map = set->data; @@ -611,7 +528,8 @@ static void flush(struct ip_set *set) init_gc_timer(set); } -static void list_header(const struct ip_set *set, void *data) +static void +iptreemap_list_header(const struct ip_set *set, void *data) { struct ip_set_iptreemap *map = set->data; struct ip_set_req_iptreemap_create *header = data; @@ -619,7 +537,8 @@ static void list_header(const struct ip_set *set, void *data) header->gc_interval = map->gc_interval; } -static int list_members_size(const struct ip_set *set) +static int +iptreemap_list_members_size(const struct ip_set *set) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -648,17 +567,19 @@ static int list_members_size(const struct ip_set *set) return (count * sizeof(struct ip_set_req_iptreemap)); } -static inline size_t add_member(void *data, size_t offset, ip_set_ip_t start, ip_set_ip_t end) +static inline size_t +add_member(void *data, size_t offset, ip_set_ip_t start, ip_set_ip_t end) { struct ip_set_req_iptreemap *entry = data + offset; - entry->start = start; + entry->ip = start; entry->end = end; return sizeof(*entry); } -static void list_members(const struct ip_set *set, void *data) +static void +iptreemap_list_members(const struct ip_set *set, void *data) { struct ip_set_iptreemap *map = set->data; struct ip_set_iptreemap_b *btree; @@ -695,26 +616,7 @@ static void list_members(const struct ip_set *set, void *data) add_member(data, offset, start, end); } -static struct ip_set_type ip_set_iptreemap = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = create, - .destroy = destroy, - .flush = flush, - .reqsize = sizeof(struct ip_set_req_iptreemap), - .addip = addip, - .addip_kernel = addip_kernel, - .delip = delip, - .delip_kernel = delip_kernel, - .testip = testip, - .testip_kernel = testip_kernel, - .header_size = sizeof(struct ip_set_req_iptreemap_create), - .list_header = list_header, - .list_members_size = list_members_size, - .list_members = list_members, - .me = THIS_MODULE, -}; +IP_SET_TYPE(iptreemap, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Sven Wegener "); @@ -725,43 +627,22 @@ static int __init ip_set_iptreemap_init(void) int ret = -ENOMEM; int a; -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - cachep_b = kmem_cache_create("ip_set_iptreemap_b", - sizeof(struct ip_set_iptreemap_b), - 0, 0, NULL); -#else - cachep_b = kmem_cache_create("ip_set_iptreemap_b", - sizeof(struct ip_set_iptreemap_b), - 0, 0, NULL, NULL); -#endif + cachep_b = KMEM_CACHE_CREATE("ip_set_iptreemap_b", + sizeof(struct ip_set_iptreemap_b)); if (!cachep_b) { ip_set_printk("Unable to create ip_set_iptreemap_b slab cache"); goto out; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - cachep_c = kmem_cache_create("ip_set_iptreemap_c", - sizeof(struct ip_set_iptreemap_c), - 0, 0, NULL); -#else - cachep_c = kmem_cache_create("ip_set_iptreemap_c", - sizeof(struct ip_set_iptreemap_c), - 0, 0, NULL, NULL); -#endif + cachep_c = KMEM_CACHE_CREATE("ip_set_iptreemap_c", + sizeof(struct ip_set_iptreemap_c)); if (!cachep_c) { ip_set_printk("Unable to create ip_set_iptreemap_c slab cache"); goto outb; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - cachep_d = kmem_cache_create("ip_set_iptreemap_d", - sizeof(struct ip_set_iptreemap_d), - 0, 0, NULL); -#else - cachep_d = kmem_cache_create("ip_set_iptreemap_d", - sizeof(struct ip_set_iptreemap_d), - 0, 0, NULL, NULL); -#endif + cachep_d = KMEM_CACHE_CREATE("ip_set_iptreemap_d", + sizeof(struct ip_set_iptreemap_d)); if (!cachep_d) { ip_set_printk("Unable to create ip_set_iptreemap_d slab cache"); goto outc; diff --git a/extensions/ipset/ip_set_iptreemap.h b/extensions/ipset/ip_set_iptreemap.h index 2f6c071..0b574e5 100644 --- a/extensions/ipset/ip_set_iptreemap.h +++ b/extensions/ipset/ip_set_iptreemap.h @@ -33,7 +33,7 @@ struct ip_set_req_iptreemap_create { }; struct ip_set_req_iptreemap { - ip_set_ip_t start; + ip_set_ip_t ip; ip_set_ip_t end; }; diff --git a/extensions/ipset/ip_set_macipmap.c b/extensions/ipset/ip_set_macipmap.c index 76c4c4a..5a02ca0 100644 --- a/extensions/ipset/ip_set_macipmap.c +++ b/extensions/ipset/ip_set_macipmap.c @@ -1,7 +1,7 @@ /* Copyright (C) 2000-2002 Joakim Axelsson * Patrick Schaaf * Martin Josefsson - * Copyright (C) 2003-2004 Jozsef Kadlecsik + * Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -13,33 +13,22 @@ #include #include #include -#include -#include -#include "ip_set.h" #include #include #include #include #include -#include -#include "ip_set_malloc.h" #include "ip_set_macipmap.h" static int -testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) +macipmap_utest(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) { - struct ip_set_macipmap *map = set->data; - struct ip_set_macip *table = map->members; + const struct ip_set_macipmap *map = set->data; + const struct ip_set_macip *table = map->members; const struct ip_set_req_macipmap *req = data; - if (size != sizeof(struct ip_set_req_macipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_macipmap), - size); - return -EINVAL; - } - if (req->ip < map->first_ip || req->ip > map->last_ip) return -ERANGE; @@ -57,24 +46,17 @@ testip(struct ip_set *set, const void *data, size_t size, ip_set_ip_t *hash_ip) } static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) +macipmap_ktest(struct ip_set *set, + const struct sk_buff *skb, + ip_set_ip_t *hash_ip, + const u_int32_t *flags, + unsigned char index) { - struct ip_set_macipmap *map = set->data; - struct ip_set_macip *table = map->members; + const struct ip_set_macipmap *map = set->data; + const struct ip_set_macip *table = map->members; ip_set_ip_t ip; - ip = ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr); -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr); -#endif + ip = ipaddr(skb, flags[index]); if (ip < map->first_ip || ip > map->last_ip) return 0; @@ -86,13 +68,8 @@ testip_kernel(struct ip_set *set, (void *) &table[ip - map->first_ip].flags)) { /* Is mac pointer valid? * If so, compare... */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) return (skb_mac_header(skb) >= skb->head && (skb_mac_header(skb) + ETH_HLEN) <= skb->data -#else - return (skb->mac.raw >= skb->head - && (skb->mac.raw + ETH_HLEN) <= skb->data -#endif && (memcmp(eth_hdr(skb)->h_source, &table[ip - map->first_ip].ethernet, ETH_ALEN) == 0)); @@ -103,8 +80,8 @@ testip_kernel(struct ip_set *set, /* returns 0 on success */ static inline int -__addip(struct ip_set *set, - ip_set_ip_t ip, const unsigned char *ethernet, ip_set_ip_t *hash_ip) +macipmap_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, const unsigned char *ethernet) { struct ip_set_macipmap *map = set->data; struct ip_set_macip *table = map->members; @@ -121,53 +98,16 @@ __addip(struct ip_set *set, return 0; } -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_macipmap *req = data; - - if (size != sizeof(struct ip_set_req_macipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_macipmap), - size); - return -EINVAL; - } - return __addip(set, req->ip, req->ethernet, hash_ip); -} - -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t ip; - - ip = ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr); -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr); -#endif - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - if (!(skb_mac_header(skb) >= skb->head - && (skb_mac_header(skb) + ETH_HLEN) <= skb->data)) -#else - if (!(skb->mac.raw >= skb->head - && (skb->mac.raw + ETH_HLEN) <= skb->data)) -#endif +#define KADT_CONDITION \ + if (!(skb_mac_header(skb) >= skb->head \ + && (skb_mac_header(skb) + ETH_HLEN) <= skb->data))\ return -EINVAL; - return __addip(set, ip, eth_hdr(skb)->h_source, hash_ip); -} +UADT(macipmap, add, req->ethernet) +KADT(macipmap, add, ipaddr, eth_hdr(skb)->h_source) static inline int -__delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +macipmap_del(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { struct ip_set_macipmap *map = set->data; struct ip_set_macip *table = map->members; @@ -183,178 +123,44 @@ __delip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +#undef KADT_CONDITION +#define KADT_CONDITION + +UADT(macipmap, del) +KADT(macipmap, del, ipaddr) + +static inline int +__macipmap_create(const struct ip_set_req_macipmap_create *req, + struct ip_set_macipmap *map) { - const struct ip_set_req_macipmap *req = data; - - if (size != sizeof(struct ip_set_req_macipmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_macipmap), - size); - return -EINVAL; - } - return __delip(set, req->ip, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __delip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} - -static inline size_t members_size(ip_set_ip_t from, ip_set_ip_t to) -{ - return (size_t)((to - from + 1) * sizeof(struct ip_set_macip)); -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - size_t newbytes; - const struct ip_set_req_macipmap_create *req = data; - struct ip_set_macipmap *map; - - if (size != sizeof(struct ip_set_req_macipmap_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_macipmap_create), - size); - return -EINVAL; - } - - DP("from %u.%u.%u.%u to %u.%u.%u.%u", - HIPQUAD(req->from), HIPQUAD(req->to)); - - if (req->from > req->to) { - DP("bad ip range"); - return -ENOEXEC; - } - if (req->to - req->from > MAX_RANGE) { - ip_set_printk("range too big (max %d addresses)", - MAX_RANGE+1); + ip_set_printk("range too big, %d elements (max %d)", + req->to - req->from + 1, MAX_RANGE+1); return -ENOEXEC; } - - map = kmalloc(sizeof(struct ip_set_macipmap), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_macipmap)); - return -ENOMEM; - } map->flags = req->flags; - map->first_ip = req->from; - map->last_ip = req->to; - newbytes = members_size(map->first_ip, map->last_ip); - map->members = ip_set_malloc(newbytes); - DP("members: %u %p", newbytes, map->members); - if (!map->members) { - DP("out of memory for %d bytes", newbytes); - kfree(map); - return -ENOMEM; - } - memset(map->members, 0, newbytes); - - set->data = map; - return 0; + return (req->to - req->from + 1) * sizeof(struct ip_set_macip); } -static void destroy(struct ip_set *set) +BITMAP_CREATE(macipmap) +BITMAP_DESTROY(macipmap) +BITMAP_FLUSH(macipmap) + +static inline void +__macipmap_list_header(const struct ip_set_macipmap *map, + struct ip_set_req_macipmap_create *header) { - struct ip_set_macipmap *map = set->data; - - ip_set_free(map->members, members_size(map->first_ip, map->last_ip)); - kfree(map); - - set->data = NULL; -} - -static void flush(struct ip_set *set) -{ - struct ip_set_macipmap *map = set->data; - memset(map->members, 0, members_size(map->first_ip, map->last_ip)); -} - -static void list_header(const struct ip_set *set, void *data) -{ - const struct ip_set_macipmap *map = set->data; - struct ip_set_req_macipmap_create *header = data; - - DP("list_header %x %x %u", map->first_ip, map->last_ip, - map->flags); - - header->from = map->first_ip; - header->to = map->last_ip; header->flags = map->flags; } -static int list_members_size(const struct ip_set *set) -{ - const struct ip_set_macipmap *map = set->data; +BITMAP_LIST_HEADER(macipmap) +BITMAP_LIST_MEMBERS_SIZE(macipmap) +BITMAP_LIST_MEMBERS(macipmap) - DP("%u", members_size(map->first_ip, map->last_ip)); - return members_size(map->first_ip, map->last_ip); -} - -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_macipmap *map = set->data; - - int bytes = members_size(map->first_ip, map->last_ip); - - DP("members: %u %p", bytes, map->members); - memcpy(data, map->members, bytes); -} - -static struct ip_set_type ip_set_macipmap = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_macipmap), - .addip = &addip, - .addip_kernel = &addip_kernel, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_macipmap_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_TYPE(macipmap, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("macipmap type of IP sets"); -static int __init ip_set_macipmap_init(void) -{ - init_max_page_size(); - return ip_set_register_set_type(&ip_set_macipmap); -} - -static void __exit ip_set_macipmap_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_macipmap); -} - -module_init(ip_set_macipmap_init); -module_exit(ip_set_macipmap_fini); +REGISTER_MODULE(macipmap) diff --git a/extensions/ipset/ip_set_macipmap.h b/extensions/ipset/ip_set_macipmap.h index 9f9389b..5f5e286 100644 --- a/extensions/ipset/ip_set_macipmap.h +++ b/extensions/ipset/ip_set_macipmap.h @@ -2,9 +2,9 @@ #define __IP_SET_MACIPMAP_H #include "ip_set.h" +#include "ip_set_bitmaps.h" #define SETTYPE_NAME "macipmap" -#define MAX_RANGE 0x0000FFFF /* general flags */ #define IPSET_MACIP_MATCHUNSET 1 @@ -17,6 +17,7 @@ struct ip_set_macipmap { ip_set_ip_t first_ip; /* host byte order, included in range */ ip_set_ip_t last_ip; /* host byte order, included in range */ u_int32_t flags; + size_t size; /* size of the ipmap proper */ }; struct ip_set_req_macipmap_create { diff --git a/extensions/ipset/ip_set_malloc.h b/extensions/ipset/ip_set_malloc.h index ddf6389..8bce667 100644 --- a/extensions/ipset/ip_set_malloc.h +++ b/extensions/ipset/ip_set_malloc.h @@ -2,13 +2,22 @@ #define _IP_SET_MALLOC_H #ifdef __KERNEL__ +#include static size_t max_malloc_size = 0, max_page_size = 0; +static size_t default_max_malloc_size = 131072; /* Guaranteed: slab.c */ -static inline unsigned int init_max_page_size(void) +static inline int init_max_page_size(void) { +/* Compatibility glues to support 2.4.36 */ +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#define __GFP_NOWARN 0 + + /* Guaranteed: slab.c */ + max_malloc_size = max_page_size = default_max_malloc_size; +#else size_t page_size = 0; - + #define CACHE(x) if (max_page_size == 0 || x < max_page_size) \ page_size = x; #include @@ -21,6 +30,7 @@ static inline unsigned int init_max_page_size(void) return 1; } +#endif return 0; } @@ -122,7 +132,7 @@ static inline void * ip_set_malloc(size_t bytes) { BUG_ON(max_malloc_size == 0); - if (bytes > max_malloc_size) + if (bytes > default_max_malloc_size) return vmalloc(bytes); else return kmalloc(bytes, GFP_KERNEL | __GFP_NOWARN); @@ -132,7 +142,7 @@ static inline void ip_set_free(void * data, size_t bytes) { BUG_ON(max_malloc_size == 0); - if (bytes > max_malloc_size) + if (bytes > default_max_malloc_size) vfree(data); else kfree(data); diff --git a/extensions/ipset/ip_set_nethash.c b/extensions/ipset/ip_set_nethash.c index 9e3cd0e..c67785d 100644 --- a/extensions/ipset/ip_set_nethash.c +++ b/extensions/ipset/ip_set_nethash.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003-2004 Jozsef Kadlecsik +/* Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -8,43 +8,33 @@ /* Kernel module implementing a cidr nethash set */ #include +#include #include #include -#include #include -#include -#include "ip_set.h" #include #include #include #include -#include #include #include -#include "ip_set_malloc.h" #include "ip_set_nethash.h" static int limit = MAX_RANGE; static inline __u32 -jhash_ip(const struct ip_set_nethash *map, uint16_t i, ip_set_ip_t ip) -{ - return jhash_1word(ip, *(((uint32_t *) map->initval) + i)); -} - -static inline __u32 -hash_id_cidr(struct ip_set_nethash *map, - ip_set_ip_t ip, - unsigned char cidr, - ip_set_ip_t *hash_ip) +nethash_id_cidr(const struct ip_set_nethash *map, + ip_set_ip_t *hash_ip, + ip_set_ip_t ip, + uint8_t cidr) { __u32 id; u_int16_t i; ip_set_ip_t *elem; - *hash_ip = pack(ip, cidr); + *hash_ip = pack_ip_cidr(ip, cidr); for (i = 0; i < map->probes; i++) { id = jhash_ip(map, i, *hash_ip) % map->hashsize; @@ -57,14 +47,14 @@ hash_id_cidr(struct ip_set_nethash *map, } static inline __u32 -hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +nethash_id(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { - struct ip_set_nethash *map = set->data; + const struct ip_set_nethash *map = set->data; __u32 id = UINT_MAX; int i; for (i = 0; i < 30 && map->cidr[i]; i++) { - id = hash_id_cidr(map, ip, map->cidr[i], hash_ip); + id = nethash_id_cidr(map, hash_ip, ip, map->cidr[i]); if (id != UINT_MAX) break; } @@ -72,70 +62,50 @@ hash_id(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) } static inline int -__testip_cidr(struct ip_set *set, ip_set_ip_t ip, unsigned char cidr, - ip_set_ip_t *hash_ip) +nethash_test_cidr(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, uint8_t cidr) { - struct ip_set_nethash *map = set->data; + const struct ip_set_nethash *map = set->data; - return (ip && hash_id_cidr(map, ip, cidr, hash_ip) != UINT_MAX); + return (ip && nethash_id_cidr(map, hash_ip, ip, cidr) != UINT_MAX); } static inline int -__testip(struct ip_set *set, ip_set_ip_t ip, ip_set_ip_t *hash_ip) +nethash_test(struct ip_set *set, ip_set_ip_t *hash_ip, ip_set_ip_t ip) { - return (ip && hash_id(set, ip, hash_ip) != UINT_MAX); + return (ip && nethash_id(set, hash_ip, ip) != UINT_MAX); } static int -testip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +nethash_utest(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) { const struct ip_set_req_nethash *req = data; - if (size != sizeof(struct ip_set_req_nethash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_nethash), - size); + if (req->cidr <= 0 || req->cidr > 32) return -EINVAL; - } - return (req->cidr == 32 ? __testip(set, req->ip, hash_ip) - : __testip_cidr(set, req->ip, req->cidr, hash_ip)); + return (req->cidr == 32 ? nethash_test(set, hash_ip, req->ip) + : nethash_test_cidr(set, hash_ip, req->ip, req->cidr)); } -static int -testip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - return __testip(set, - ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr), -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr), -#endif - hash_ip); -} +#define KADT_CONDITION + +KADT(nethash, test, ipaddr) static inline int -__addip_base(struct ip_set_nethash *map, ip_set_ip_t ip) +__nethash_add(struct ip_set_nethash *map, ip_set_ip_t *ip) { __u32 probe; u_int16_t i; ip_set_ip_t *elem; for (i = 0; i < map->probes; i++) { - probe = jhash_ip(map, i, ip) % map->hashsize; + probe = jhash_ip(map, i, *ip) % map->hashsize; elem = HARRAY_ELEM(map->members, ip_set_ip_t *, probe); - if (*elem == ip) + if (*elem == *ip) return -EEXIST; if (!*elem) { - *elem = ip; - map->elements++; + *elem = *ip; return 0; } } @@ -144,329 +114,102 @@ __addip_base(struct ip_set_nethash *map, ip_set_ip_t ip) } static inline int -__addip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, - ip_set_ip_t *hash_ip) +nethash_add(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, uint8_t cidr) { + struct ip_set_nethash *map = set->data; + int ret; + if (!ip || map->elements >= limit) return -ERANGE; + if (cidr <= 0 || cidr >= 32) + return -EINVAL; + if (map->nets[cidr-1] == UINT16_MAX) + return -ERANGE; - *hash_ip = pack(ip, cidr); + *hash_ip = pack_ip_cidr(ip, cidr); DP("%u.%u.%u.%u/%u, %u.%u.%u.%u", HIPQUAD(ip), cidr, HIPQUAD(*hash_ip)); - return __addip_base(map, *hash_ip); -} - -static void -update_cidr_sizes(struct ip_set_nethash *map, unsigned char cidr) -{ - unsigned char next; - int i; - - for (i = 0; i < 30 && map->cidr[i]; i++) { - if (map->cidr[i] == cidr) { - return; - } else if (map->cidr[i] < cidr) { - next = map->cidr[i]; - map->cidr[i] = cidr; - cidr = next; - } + ret = __nethash_add(map, hash_ip); + if (ret == 0) { + if (!map->nets[cidr-1]++) + add_cidr_size(map->cidr, cidr); + map->elements++; } - if (i < 30) - map->cidr[i] = cidr; -} - -static int -addip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) -{ - const struct ip_set_req_nethash *req = data; - int ret; - - if (size != sizeof(struct ip_set_req_nethash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_nethash), - size); - return -EINVAL; - } - ret = __addip(set->data, req->ip, req->cidr, hash_ip); - - if (ret == 0) - update_cidr_sizes(set->data, req->cidr); return ret; } -static int -addip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) +#undef KADT_CONDITION +#define KADT_CONDITION \ + struct ip_set_nethash *map = set->data; \ + uint8_t cidr = map->cidr[0] ? map->cidr[0] : 31; + +UADT(nethash, add, req->cidr) +KADT(nethash, add, ipaddr, cidr) + +static inline void +__nethash_retry(struct ip_set_nethash *tmp, struct ip_set_nethash *map) { - struct ip_set_nethash *map = set->data; - int ret = -ERANGE; - ip_set_ip_t ip = ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr); -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr); -#endif - - if (map->cidr[0]) - ret = __addip(map, ip, map->cidr[0], hash_ip); - - return ret; + memcpy(tmp->cidr, map->cidr, sizeof(tmp->cidr)); + memcpy(tmp->nets, map->nets, sizeof(tmp->nets)); } -static int retry(struct ip_set *set) -{ - struct ip_set_nethash *map = set->data; - ip_set_ip_t *elem; - void *members; - u_int32_t i, hashsize = map->hashsize; - int res; - struct ip_set_nethash *tmp; - - if (map->resize == 0) - return -ERANGE; - - again: - res = 0; - - /* Calculate new parameters */ - hashsize += (hashsize * map->resize)/100; - if (hashsize == map->hashsize) - hashsize++; - - ip_set_printk("rehashing of set %s triggered: " - "hashsize grows from %u to %u", - set->name, map->hashsize, hashsize); - - tmp = kmalloc(sizeof(struct ip_set_nethash) - + map->probes * sizeof(uint32_t), GFP_ATOMIC); - if (!tmp) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_nethash) - + map->probes * sizeof(uint32_t)); - return -ENOMEM; - } - tmp->members = harray_malloc(hashsize, sizeof(ip_set_ip_t), GFP_ATOMIC); - if (!tmp->members) { - DP("out of memory for %d bytes", hashsize * sizeof(ip_set_ip_t)); - kfree(tmp); - return -ENOMEM; - } - tmp->hashsize = hashsize; - tmp->elements = 0; - tmp->probes = map->probes; - tmp->resize = map->resize; - memcpy(tmp->initval, map->initval, map->probes * sizeof(uint32_t)); - memcpy(tmp->cidr, map->cidr, 30 * sizeof(unsigned char)); - - write_lock_bh(&set->lock); - map = set->data; /* Play safe */ - for (i = 0; i < map->hashsize && res == 0; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - if (*elem) - res = __addip_base(tmp, *elem); - } - if (res) { - /* Failure, try again */ - write_unlock_bh(&set->lock); - harray_free(tmp->members); - kfree(tmp); - goto again; - } - - /* Success at resizing! */ - members = map->members; - - map->hashsize = tmp->hashsize; - map->members = tmp->members; - write_unlock_bh(&set->lock); - - harray_free(members); - kfree(tmp); - - return 0; -} +HASH_RETRY(nethash, ip_set_ip_t) static inline int -__delip(struct ip_set_nethash *map, ip_set_ip_t ip, unsigned char cidr, - ip_set_ip_t *hash_ip) +nethash_del(struct ip_set *set, ip_set_ip_t *hash_ip, + ip_set_ip_t ip, uint8_t cidr) { + struct ip_set_nethash *map = set->data; ip_set_ip_t id, *elem; if (!ip) return -ERANGE; + if (cidr <= 0 || cidr >= 32) + return -EINVAL; - id = hash_id_cidr(map, ip, cidr, hash_ip); + id = nethash_id_cidr(map, hash_ip, ip, cidr); if (id == UINT_MAX) return -EEXIST; elem = HARRAY_ELEM(map->members, ip_set_ip_t *, id); *elem = 0; map->elements--; + if (!map->nets[cidr-1]--) + del_cidr_size(map->cidr, cidr); return 0; } -static int -delip(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_ip) +UADT(nethash, del, req->cidr) +KADT(nethash, del, ipaddr, cidr) + +static inline int +__nethash_create(const struct ip_set_req_nethash_create *req, + struct ip_set_nethash *map) { - const struct ip_set_req_nethash *req = data; - - if (size != sizeof(struct ip_set_req_nethash)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_nethash), - size); - return -EINVAL; - } - /* TODO: no garbage collection in map->cidr */ - return __delip(set->data, req->ip, req->cidr, hash_ip); -} - -static int -delip_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_ip, - const u_int32_t *flags, - unsigned char index) -{ - struct ip_set_nethash *map = set->data; - int ret = -ERANGE; - ip_set_ip_t ip = ntohl(flags[index] & IPSET_SRC -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - ? ip_hdr(skb)->saddr - : ip_hdr(skb)->daddr); -#else - ? skb->nh.iph->saddr - : skb->nh.iph->daddr); -#endif + memset(map->cidr, 0, sizeof(map->cidr)); + memset(map->nets, 0, sizeof(map->nets)); - if (map->cidr[0]) - ret = __delip(map, ip, map->cidr[0], hash_ip); - - return ret; -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - const struct ip_set_req_nethash_create *req = data; - struct ip_set_nethash *map; - uint16_t i; - - if (size != sizeof(struct ip_set_req_nethash_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_nethash_create), - size); - return -EINVAL; - } - - if (req->hashsize < 1) { - ip_set_printk("hashsize too small"); - return -ENOEXEC; - } - if (req->probes < 1) { - ip_set_printk("probes too small"); - return -ENOEXEC; - } - - map = kmalloc(sizeof(struct ip_set_nethash) - + req->probes * sizeof(uint32_t), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_nethash) - + req->probes * sizeof(uint32_t)); - return -ENOMEM; - } - for (i = 0; i < req->probes; i++) - get_random_bytes(((uint32_t *) map->initval)+i, 4); - map->elements = 0; - map->hashsize = req->hashsize; - map->probes = req->probes; - map->resize = req->resize; - memset(map->cidr, 0, 30 * sizeof(unsigned char)); - map->members = harray_malloc(map->hashsize, sizeof(ip_set_ip_t), GFP_KERNEL); - if (!map->members) { - DP("out of memory for %d bytes", map->hashsize * sizeof(ip_set_ip_t)); - kfree(map); - return -ENOMEM; - } - - set->data = map; return 0; } -static void destroy(struct ip_set *set) -{ - struct ip_set_nethash *map = set->data; +HASH_CREATE(nethash, ip_set_ip_t) +HASH_DESTROY(nethash) - harray_free(map->members); - kfree(map); +HASH_FLUSH_CIDR(nethash, ip_set_ip_t) - set->data = NULL; +static inline void +__nethash_list_header(const struct ip_set_nethash *map, + struct ip_set_req_nethash_create *header) +{ } -static void flush(struct ip_set *set) -{ - struct ip_set_nethash *map = set->data; - harray_flush(map->members, map->hashsize, sizeof(ip_set_ip_t)); - memset(map->cidr, 0, 30 * sizeof(unsigned char)); - map->elements = 0; -} +HASH_LIST_HEADER(nethash) +HASH_LIST_MEMBERS_SIZE(nethash, ip_set_ip_t) +HASH_LIST_MEMBERS(nethash, ip_set_ip_t) -static void list_header(const struct ip_set *set, void *data) -{ - const struct ip_set_nethash *map = set->data; - struct ip_set_req_nethash_create *header = data; - - header->hashsize = map->hashsize; - header->probes = map->probes; - header->resize = map->resize; -} - -static int list_members_size(const struct ip_set *set) -{ - struct ip_set_nethash *map = set->data; - - return (map->hashsize * sizeof(ip_set_ip_t)); -} - -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_nethash *map = set->data; - ip_set_ip_t i, *elem; - - for (i = 0; i < map->hashsize; i++) { - elem = HARRAY_ELEM(map->members, ip_set_ip_t *, i); - ((ip_set_ip_t *)data)[i] = *elem; - } -} - -static struct ip_set_type ip_set_nethash = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_IP | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_nethash), - .addip = &addip, - .addip_kernel = &addip_kernel, - .retry = &retry, - .delip = &delip, - .delip_kernel = &delip_kernel, - .testip = &testip, - .testip_kernel = &testip_kernel, - .header_size = sizeof(struct ip_set_req_nethash_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_RTYPE(nethash, IPSET_TYPE_IP | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); @@ -474,17 +217,4 @@ MODULE_DESCRIPTION("nethash type of IP sets"); module_param(limit, int, 0600); MODULE_PARM_DESC(limit, "maximal number of elements stored in the sets"); -static int __init ip_set_nethash_init(void) -{ - init_max_page_size(); - return ip_set_register_set_type(&ip_set_nethash); -} - -static void __exit ip_set_nethash_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_nethash); -} - -module_init(ip_set_nethash_init); -module_exit(ip_set_nethash_fini); +REGISTER_MODULE(nethash) diff --git a/extensions/ipset/ip_set_nethash.h b/extensions/ipset/ip_set_nethash.h index 2f347b9..a04e9f7 100644 --- a/extensions/ipset/ip_set_nethash.h +++ b/extensions/ipset/ip_set_nethash.h @@ -2,9 +2,9 @@ #define __IP_SET_NETHASH_H #include "ip_set.h" +#include "ip_set_hashes.h" #define SETTYPE_NAME "nethash" -#define MAX_RANGE 0x0000FFFF struct ip_set_nethash { ip_set_ip_t *members; /* the nethash proper */ @@ -12,8 +12,9 @@ struct ip_set_nethash { uint32_t hashsize; /* hash size */ uint16_t probes; /* max number of probes */ uint16_t resize; /* resize factor in percent */ - unsigned char cidr[30]; /* CIDR sizes */ - void *initval[0]; /* initvals for jhash_1word */ + uint8_t cidr[30]; /* CIDR sizes */ + uint16_t nets[30]; /* nr of nets by CIDR sizes */ + initval_t initval[0]; /* initvals for jhash_1word */ }; struct ip_set_req_nethash_create { @@ -24,32 +25,7 @@ struct ip_set_req_nethash_create { struct ip_set_req_nethash { ip_set_ip_t ip; - unsigned char cidr; + uint8_t cidr; }; -static unsigned char shifts[] = {255, 253, 249, 241, 225, 193, 129, 1}; - -static inline ip_set_ip_t -pack(ip_set_ip_t ip, unsigned char cidr) -{ - ip_set_ip_t addr, *paddr = &addr; - unsigned char n, t, *a; - - addr = htonl(ip & (0xFFFFFFFF << (32 - (cidr)))); -#ifdef __KERNEL__ - DP("ip:%u.%u.%u.%u/%u", NIPQUAD(addr), cidr); -#endif - n = cidr / 8; - t = cidr % 8; - a = &((unsigned char *)paddr)[n]; - *a = *a /(1 << (8 - t)) + shifts[t]; -#ifdef __KERNEL__ - DP("n: %u, t: %u, a: %u", n, t, *a); - DP("ip:%u.%u.%u.%u/%u, %u.%u.%u.%u", - HIPQUAD(ip), cidr, NIPQUAD(addr)); -#endif - - return ntohl(addr); -} - #endif /* __IP_SET_NETHASH_H */ diff --git a/extensions/ipset/ip_set_portmap.c b/extensions/ipset/ip_set_portmap.c index c44b8db..6247128 100644 --- a/extensions/ipset/ip_set_portmap.c +++ b/extensions/ipset/ip_set_portmap.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003-2004 Jozsef Kadlecsik +/* Copyright (C) 2003-2008 Jozsef Kadlecsik * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -12,9 +12,6 @@ #include #include #include -#include -#include -#include "ip_set.h" #include #include #include @@ -23,113 +20,37 @@ #include #include "ip_set_portmap.h" - -/* We must handle non-linear skbs */ -static inline ip_set_ip_t -get_port(const struct sk_buff *skb, u_int32_t flags) -{ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - struct iphdr *iph = ip_hdr(skb); -#else - struct iphdr *iph = skb->nh.iph; -#endif - u_int16_t offset = ntohs(iph->frag_off) & IP_OFFSET; - switch (iph->protocol) { - case IPPROTO_TCP: { - struct tcphdr tcph; - - /* See comments at tcp_match in ip_tables.c */ - if (offset) - return INVALID_PORT; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &tcph, sizeof(tcph)) < 0) -#else - if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &tcph, sizeof(tcph)) < 0) -#endif - /* No choice either */ - return INVALID_PORT; - - return ntohs(flags & IPSET_SRC ? - tcph.source : tcph.dest); - } - case IPPROTO_UDP: { - struct udphdr udph; - - if (offset) - return INVALID_PORT; - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22) - if (skb_copy_bits(skb, ip_hdr(skb)->ihl*4, &udph, sizeof(udph)) < 0) -#else - if (skb_copy_bits(skb, skb->nh.iph->ihl*4, &udph, sizeof(udph)) < 0) -#endif - /* No choice either */ - return INVALID_PORT; - - return ntohs(flags & IPSET_SRC ? - udph.source : udph.dest); - } - default: - return INVALID_PORT; - } -} +#include "ip_set_getport.h" static inline int -__testport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) +portmap_test(const struct ip_set *set, ip_set_ip_t *hash_port, + ip_set_ip_t port) { - struct ip_set_portmap *map = set->data; + const struct ip_set_portmap *map = set->data; - if (port < map->first_port || port > map->last_port) + if (port < map->first_ip || port > map->last_ip) return -ERANGE; *hash_port = port; DP("set: %s, port:%u, %u", set->name, port, *hash_port); - return !!test_bit(port - map->first_port, map->members); + return !!test_bit(port - map->first_ip, map->members); } -static int -testport(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_port) -{ - const struct ip_set_req_portmap *req = data; - - if (size != sizeof(struct ip_set_req_portmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_portmap), - size); - return -EINVAL; - } - return __testport(set, req->port, hash_port); -} - -static int -testport_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_port, - const u_int32_t *flags, - unsigned char index) -{ - int res; - ip_set_ip_t port = get_port(skb, flags[index]); - - DP("flag %s port %u", flags[index] & IPSET_SRC ? "SRC" : "DST", port); - if (port == INVALID_PORT) +#define KADT_CONDITION \ + if (ip == INVALID_PORT) \ return 0; - res = __testport(set, port, hash_port); - - return (res < 0 ? 0 : res); -} +UADT(portmap, test) +KADT(portmap, test, get_port) static inline int -__addport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) +portmap_add(struct ip_set *set, ip_set_ip_t *hash_port, ip_set_ip_t port) { struct ip_set_portmap *map = set->data; - if (port < map->first_port || port > map->last_port) + if (port < map->first_ip || port > map->last_ip) return -ERANGE; - if (test_and_set_bit(port - map->first_port, map->members)) + if (test_and_set_bit(port - map->first_ip, map->members)) return -EEXIST; *hash_port = port; @@ -137,44 +58,17 @@ __addport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) return 0; } -static int -addport(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_port) -{ - const struct ip_set_req_portmap *req = data; - - if (size != sizeof(struct ip_set_req_portmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_portmap), - size); - return -EINVAL; - } - return __addport(set, req->port, hash_port); -} - -static int -addport_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_port, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t port = get_port(skb, flags[index]); - - if (port == INVALID_PORT) - return -EINVAL; - - return __addport(set, port, hash_port); -} +UADT(portmap, add) +KADT(portmap, add, get_port) static inline int -__delport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) +portmap_del(struct ip_set *set, ip_set_ip_t *hash_port, ip_set_ip_t port) { struct ip_set_portmap *map = set->data; - if (port < map->first_port || port > map->last_port) + if (port < map->first_ip || port > map->last_ip) return -ERANGE; - if (!test_and_clear_bit(port - map->first_port, map->members)) + if (!test_and_clear_bit(port - map->first_ip, map->members)) return -EEXIST; *hash_port = port; @@ -182,160 +76,39 @@ __delport(struct ip_set *set, ip_set_ip_t port, ip_set_ip_t *hash_port) return 0; } -static int -delport(struct ip_set *set, const void *data, size_t size, - ip_set_ip_t *hash_port) +UADT(portmap, del) +KADT(portmap, del, get_port) + +static inline int +__portmap_create(const struct ip_set_req_portmap_create *req, + struct ip_set_portmap *map) { - const struct ip_set_req_portmap *req = data; - - if (size != sizeof(struct ip_set_req_portmap)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_portmap), - size); - return -EINVAL; - } - return __delport(set, req->port, hash_port); -} - -static int -delport_kernel(struct ip_set *set, - const struct sk_buff *skb, - ip_set_ip_t *hash_port, - const u_int32_t *flags, - unsigned char index) -{ - ip_set_ip_t port = get_port(skb, flags[index]); - - if (port == INVALID_PORT) - return -EINVAL; - - return __delport(set, port, hash_port); -} - -static int create(struct ip_set *set, const void *data, size_t size) -{ - int newbytes; - const struct ip_set_req_portmap_create *req = data; - struct ip_set_portmap *map; - - if (size != sizeof(struct ip_set_req_portmap_create)) { - ip_set_printk("data length wrong (want %zu, have %zu)", - sizeof(struct ip_set_req_portmap_create), - size); - return -EINVAL; - } - - DP("from %u to %u", req->from, req->to); - - if (req->from > req->to) { - DP("bad port range"); - return -ENOEXEC; - } - if (req->to - req->from > MAX_RANGE) { - ip_set_printk("range too big (max %d ports)", - MAX_RANGE+1); + ip_set_printk("range too big, %d elements (max %d)", + req->to - req->from + 1, MAX_RANGE+1); return -ENOEXEC; } - - map = kmalloc(sizeof(struct ip_set_portmap), GFP_KERNEL); - if (!map) { - DP("out of memory for %d bytes", - sizeof(struct ip_set_portmap)); - return -ENOMEM; - } - map->first_port = req->from; - map->last_port = req->to; - newbytes = bitmap_bytes(req->from, req->to); - map->members = kmalloc(newbytes, GFP_KERNEL); - if (!map->members) { - DP("out of memory for %d bytes", newbytes); - kfree(map); - return -ENOMEM; - } - memset(map->members, 0, newbytes); - - set->data = map; - return 0; + return bitmap_bytes(req->from, req->to); } -static void destroy(struct ip_set *set) +BITMAP_CREATE(portmap) +BITMAP_DESTROY(portmap) +BITMAP_FLUSH(portmap) + +static inline void +__portmap_list_header(const struct ip_set_portmap *map, + struct ip_set_req_portmap_create *header) { - struct ip_set_portmap *map = set->data; - - kfree(map->members); - kfree(map); - - set->data = NULL; } -static void flush(struct ip_set *set) -{ - struct ip_set_portmap *map = set->data; - memset(map->members, 0, bitmap_bytes(map->first_port, map->last_port)); -} +BITMAP_LIST_HEADER(portmap) +BITMAP_LIST_MEMBERS_SIZE(portmap) +BITMAP_LIST_MEMBERS(portmap) -static void list_header(const struct ip_set *set, void *data) -{ - const struct ip_set_portmap *map = set->data; - struct ip_set_req_portmap_create *header = data; - - DP("list_header %u %u", map->first_port, map->last_port); - - header->from = map->first_port; - header->to = map->last_port; -} - -static int list_members_size(const struct ip_set *set) -{ - const struct ip_set_portmap *map = set->data; - - return bitmap_bytes(map->first_port, map->last_port); -} - -static void list_members(const struct ip_set *set, void *data) -{ - const struct ip_set_portmap *map = set->data; - int bytes = bitmap_bytes(map->first_port, map->last_port); - - memcpy(data, map->members, bytes); -} - -static struct ip_set_type ip_set_portmap = { - .typename = SETTYPE_NAME, - .features = IPSET_TYPE_PORT | IPSET_DATA_SINGLE, - .protocol_version = IP_SET_PROTOCOL_VERSION, - .create = &create, - .destroy = &destroy, - .flush = &flush, - .reqsize = sizeof(struct ip_set_req_portmap), - .addip = &addport, - .addip_kernel = &addport_kernel, - .delip = &delport, - .delip_kernel = &delport_kernel, - .testip = &testport, - .testip_kernel = &testport_kernel, - .header_size = sizeof(struct ip_set_req_portmap_create), - .list_header = &list_header, - .list_members_size = &list_members_size, - .list_members = &list_members, - .me = THIS_MODULE, -}; +IP_SET_TYPE(portmap, IPSET_TYPE_PORT | IPSET_DATA_SINGLE) MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("portmap type of IP sets"); -static int __init ip_set_portmap_init(void) -{ - return ip_set_register_set_type(&ip_set_portmap); -} - -static void __exit ip_set_portmap_fini(void) -{ - /* FIXME: possible race with ip_set_create() */ - ip_set_unregister_set_type(&ip_set_portmap); -} - -module_init(ip_set_portmap_init); -module_exit(ip_set_portmap_fini); +REGISTER_MODULE(portmap) diff --git a/extensions/ipset/ip_set_portmap.h b/extensions/ipset/ip_set_portmap.h index 0c08974..f65d7f9 100644 --- a/extensions/ipset/ip_set_portmap.h +++ b/extensions/ipset/ip_set_portmap.h @@ -2,15 +2,15 @@ #define __IP_SET_PORTMAP_H #include "ip_set.h" +#include "ip_set_bitmaps.h" #define SETTYPE_NAME "portmap" -#define MAX_RANGE 0x0000FFFF -#define INVALID_PORT (MAX_RANGE + 1) struct ip_set_portmap { void *members; /* the portmap proper */ - ip_set_ip_t first_port; /* host byte order, included in range */ - ip_set_ip_t last_port; /* host byte order, included in range */ + ip_set_ip_t first_ip; /* host byte order, included in range */ + ip_set_ip_t last_ip; /* host byte order, included in range */ + size_t size; /* size of the ipmap proper */ }; struct ip_set_req_portmap_create { @@ -19,7 +19,7 @@ struct ip_set_req_portmap_create { }; struct ip_set_req_portmap { - ip_set_ip_t port; + ip_set_ip_t ip; }; #endif /* __IP_SET_PORTMAP_H */ diff --git a/extensions/ipset/ip_set_setlist.c b/extensions/ipset/ip_set_setlist.c new file mode 100644 index 0000000..709928e --- /dev/null +++ b/extensions/ipset/ip_set_setlist.c @@ -0,0 +1,332 @@ +/* Copyright (C) 2008 Jozsef Kadlecsik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* Kernel module implementing an IP set type: the setlist type */ + +#include +#include +#include +#include + +#include "ip_set.h" +#include "ip_set_bitmaps.h" +#include "ip_set_setlist.h" + +/* + * before ==> id, ref + * after ==> ref, id + */ + +static inline bool +next_id_eq(const struct ip_set_setlist *map, int i, ip_set_id_t id) +{ + return i < map->size && map->id[i] == id; +} + +static int +setlist_utest(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) +{ + const struct ip_set_setlist *map = set->data; + const struct ip_set_req_setlist *req = data; + ip_set_id_t id, ref = IP_SET_INVALID_ID; + int i, res = 0; + struct ip_set *s; + + if (req->before && req->ref[0] == '\0') + return -EINVAL; + + id = __ip_set_get_byname(req->name, &s); + if (id == IP_SET_INVALID_ID) + return -EEXIST; + if (req->ref[0] != '\0') { + ref = __ip_set_get_byname(req->ref, &s); + if (ref == IP_SET_INVALID_ID) { + res = -EEXIST; + goto finish; + } + } + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID; i++) { + if (req->before && map->id[i] == id) { + res = next_id_eq(map, i + 1, ref); + break; + } else if (!req->before) { + if ((ref == IP_SET_INVALID_ID + && map->id[i] == id) + || (map->id[i] == ref + && next_id_eq(map, i + 1, id))) { + res = 1; + break; + } + } + } + if (ref != IP_SET_INVALID_ID) + __ip_set_put_byid(ref); +finish: + __ip_set_put_byid(id); + return res; +} + +static int +setlist_ktest(struct ip_set *set, + const struct sk_buff *skb, + ip_set_ip_t *hash_ip, + const u_int32_t *flags, + unsigned char index) +{ + struct ip_set_setlist *map = set->data; + int i, res = 0; + + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID + && res == 0; i++) + res = ip_set_testip_kernel(map->id[i], skb, flags); + return res; +} + +static inline int +insert_setlist(struct ip_set_setlist *map, int i, ip_set_id_t id) +{ + ip_set_id_t tmp; + int j; + + printk("i: %u, last %u\n", i, map->id[map->size - 1]); + if (i >= map->size || map->id[map->size - 1] != IP_SET_INVALID_ID) + return -ERANGE; + + for (j = i; j < map->size + && id != IP_SET_INVALID_ID; j++) { + tmp = map->id[j]; + map->id[j] = id; + id = tmp; + } + return 0; +} + +static int +setlist_uadd(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) +{ + struct ip_set_setlist *map = set->data; + const struct ip_set_req_setlist *req = data; + ip_set_id_t id, ref = IP_SET_INVALID_ID; + int i, res = -ERANGE; + struct ip_set *s; + + if (req->before && req->ref[0] == '\0') + return -EINVAL; + + id = __ip_set_get_byname(req->name, &s); + if (id == IP_SET_INVALID_ID) + return -EEXIST; + /* "Loop detection" */ + if (strcmp(s->type->typename, "setlist") == 0) + goto finish; + + if (req->ref[0] != '\0') { + ref = __ip_set_get_byname(req->ref, &s); + if (ref == IP_SET_INVALID_ID) { + res = -EEXIST; + goto finish; + } + } + for (i = 0; i < map->size; i++) { + if (map->id[i] != ref) + continue; + if (req->before) + res = insert_setlist(map, i, id); + else + res = insert_setlist(map, + ref == IP_SET_INVALID_ID ? i : i + 1, + id); + break; + } + if (ref != IP_SET_INVALID_ID) + __ip_set_put_byid(ref); + /* In case of success, we keep the reference to the id */ +finish: + if (res != 0) + __ip_set_put_byid(id); + return res; +} + +static int +setlist_kadd(struct ip_set *set, + const struct sk_buff *skb, + ip_set_ip_t *hash_ip, + const u_int32_t *flags, + unsigned char index) +{ + struct ip_set_setlist *map = set->data; + int i, res = -EINVAL; + + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID + && res != 0; i++) + res = ip_set_addip_kernel(map->id[i], skb, flags); + return res; +} + +static inline bool +unshift_setlist(struct ip_set_setlist *map, int i) +{ + int j; + + for (j = i; j < map->size - 1; j++) + map->id[j] = map->id[j+1]; + map->id[map->size-1] = IP_SET_INVALID_ID; + return 0; +} + +static int +setlist_udel(struct ip_set *set, const void *data, size_t size, + ip_set_ip_t *hash_ip) +{ + struct ip_set_setlist *map = set->data; + const struct ip_set_req_setlist *req = data; + ip_set_id_t id, ref = IP_SET_INVALID_ID; + int i, res = -EEXIST; + struct ip_set *s; + + if (req->before && req->ref[0] == '\0') + return -EINVAL; + + id = __ip_set_get_byname(req->name, &s); + if (id == IP_SET_INVALID_ID) + return -EEXIST; + if (req->ref[0] != '\0') { + ref = __ip_set_get_byname(req->ref, &s); + if (ref == IP_SET_INVALID_ID) + goto finish; + } + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID; i++) { + if (req->before) { + if (map->id[i] == id + && next_id_eq(map, i + 1, ref)) { + res = unshift_setlist(map, i); + break; + } + } else if (ref == IP_SET_INVALID_ID) { + if (map->id[i] == id) { + res = unshift_setlist(map, i); + break; + } + } else if (map->id[i] == ref + && next_id_eq(map, i + 1, id)) { + res = unshift_setlist(map, i + 1); + break; + } + } + if (ref != IP_SET_INVALID_ID) + __ip_set_put_byid(ref); +finish: + __ip_set_put_byid(id); + /* In case of success, release the reference to the id */ + if (res == 0) + __ip_set_put_byid(id); + return res; +} + +static int +setlist_kdel(struct ip_set *set, + const struct sk_buff *skb, + ip_set_ip_t *hash_ip, + const u_int32_t *flags, + unsigned char index) +{ + struct ip_set_setlist *map = set->data; + int i, res = -EINVAL; + + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID + && res != 0; i++) + res = ip_set_delip_kernel(map->id[i], skb, flags); + return res; +} + +static int +setlist_create(struct ip_set *set, const void *data, size_t size) +{ + struct ip_set_setlist *map; + const struct ip_set_req_setlist_create *req = data; + int i; + + map = kmalloc(sizeof(struct ip_set_setlist) + + req->size * sizeof(ip_set_id_t), GFP_KERNEL); + if (!map) + return -ENOMEM; + map->size = req->size; + for (i = 0; i < map->size; i++) + map->id[i] = IP_SET_INVALID_ID; + + set->data = map; + return 0; +} + +static void +setlist_destroy(struct ip_set *set) +{ + struct ip_set_setlist *map = set->data; + int i; + + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID; i++) + __ip_set_put_byid(map->id[i]); + + kfree(map); + set->data = NULL; +} + +static void +setlist_flush(struct ip_set *set) +{ + struct ip_set_setlist *map = set->data; + int i; + + for (i = 0; i < map->size + && map->id[i] != IP_SET_INVALID_ID; i++) { + __ip_set_put_byid(map->id[i]); + map->id[i] = IP_SET_INVALID_ID; + } +} + +static void +setlist_list_header(const struct ip_set *set, void *data) +{ + const struct ip_set_setlist *map = set->data; + struct ip_set_req_setlist_create *header = data; + + header->size = map->size; +} + +static int +setlist_list_members_size(const struct ip_set *set) +{ + const struct ip_set_setlist *map = set->data; + + return map->size * sizeof(ip_set_id_t); +} + +static void +setlist_list_members(const struct ip_set *set, void *data) +{ + struct ip_set_setlist *map = set->data; + int i; + + for (i = 0; i < map->size; i++) + *((ip_set_id_t *)data + i) = map->id[i]; +} + +IP_SET_TYPE(setlist, IPSET_TYPE_SETNAME | IPSET_DATA_SINGLE) + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jozsef Kadlecsik "); +MODULE_DESCRIPTION("setlist type of IP sets"); + +REGISTER_MODULE(setlist) diff --git a/extensions/ipset/ip_set_setlist.h b/extensions/ipset/ip_set_setlist.h new file mode 100644 index 0000000..f6b099c --- /dev/null +++ b/extensions/ipset/ip_set_setlist.h @@ -0,0 +1,26 @@ +#ifndef __IP_SET_SETLIST_H +#define __IP_SET_SETLIST_H + +#include "ip_set.h" + +#define SETTYPE_NAME "setlist" + +#define IP_SET_SETLIST_ADD_AFTER 0 +#define IP_SET_SETLIST_ADD_BEFORE 1 + +struct ip_set_setlist { + uint8_t size; + ip_set_id_t id[0]; +}; + +struct ip_set_req_setlist_create { + uint8_t size; +}; + +struct ip_set_req_setlist { + char name[IP_SET_MAXNAMELEN]; + char ref[IP_SET_MAXNAMELEN]; + uint8_t before; +}; + +#endif /* __IP_SET_SETLIST_H */ diff --git a/extensions/ipset/ipset.8 b/extensions/ipset/ipset.8 index 2c4edcb..0d57869 100644 --- a/extensions/ipset/ipset.8 +++ b/extensions/ipset/ipset.8 @@ -87,14 +87,9 @@ is given. Bindings are not affected by the flush operation. Rename a set. Set identified by to-setname must not exist. .TP .BI "-W, --swap " "\fIfrom-setname\fP \fIto-setname\fP" -Swap two sets as they referenced in the Linux kernel. -.B -iptables -rules or -.B -ipset -bindings pointing to the content of from-setname will point to -the content of to-setname and vice versa. Both sets must exist. +Swap the content of two sets, or in another words, +exchange the name of two sets. The referred sets must exist and +identical type of sets can be swapped only. .TP .BI "-L, --list " "[\fIsetname\fP]" List the entries and bindings for the specified set, or for @@ -203,12 +198,12 @@ ipset supports the following set types: The ipmap set type uses a memory range, where each bit represents one IP address. An ipmap set can store up to 65536 (B-class network) IP addresses. The ipmap set type is very fast and memory cheap, great -for use when one want to match certain IPs in a range. Using the +for use when one want to match certain IPs in a range. If the optional .B "--netmask" -option with a CIDR netmask value between 0-32 when creating an ipmap -set, you will be able to store and match network addresses: i.e an -IP address will be in the set if the value resulted by masking the address -with the specified netmask can be found in the set. +parameter is specified with a CIDR netmask value between 1-31 then +network addresses are stored in the given set: i.e an +IP address will be in the set if the network address, which is resulted +by masking the address with the specified netmask, can be found in the set. .P Options to use when creating an ipmap set: .TP @@ -225,17 +220,16 @@ When the optional .B "--netmask" parameter specified, network addresses will be stored in the set instead of IP addresses, and the from-IP parameter -must be a network address. +must be a network address. The CIDR-netmask value must be between 1-31. .SS macipmap The macipmap set type uses a memory range, where each 8 bytes represents one IP and a MAC addresses. A macipmap set type can store up to 65536 (B-class network) IP addresses with MAC. When adding an entry to a macipmap set, you must specify the entry as -.I IP:MAC. +.I IP,MAC. When deleting or testing macipmap entries, the -.I :MAC -part is not mandatory. (The old "%" separation token instead of ":", i.e -IP%MAC is accepted as well.) +.I ,MAC +part is not mandatory. .P Options to use when creating an macipmap set: .TP @@ -279,12 +273,12 @@ Create a portmap set from the specified range. The iphash set type uses a hash to store IP addresses. In order to avoid clashes in the hash double-hashing, and as a last resort, dynamic growing of the hash performed. The iphash set type is -great to store random addresses. By supplyig the +great to store random addresses. If the optional .B "--netmask" -option with a CIDR netmask value between 0-32 at creating the set, -you will be able to store and match network addresses instead: i.e -an IP address will be in the set if the value of the address -masked with the specified netmask can be found in the set. +parameter is specified with a CIDR netmask value between 1-31 then +network addresses are stored in the given set: i.e an +IP address will be in the set if the network address, which is resulted +by masking the address with the specified netmask, can be found in the set. .P Options to use when creating an iphash set: .TP @@ -306,21 +300,22 @@ number of double-hashing. When the optional .B "--netmask" parameter specified, network addresses will be -stored in the set instead of IP addresses. +stored in the set instead of IP addresses. The CIDR-netmask value must +be between 1-31. .P The iphash type of sets can store up to 65536 entries. If a set is full, no new entries can be added to it. .P Sets created by zero valued resize parameter won't be resized at all. -The lookup time in an iphash type of set approximately linearly grows with +The lookup time in an iphash type of set grows approximately linearly with the value of the .B probes -parameter. At the same time higher +parameter. In general higher .B -probes -values result a better utilized hash while smaller values -produce a larger, sparse hash. +probe +value results better utilized hash while smaller value +produces larger, sparser hash. .SS nethash The nethash set type uses a hash to store different size of network addresses. The @@ -349,18 +344,18 @@ an IP to the hash could not be performed after The nethash type of sets can store up to 65536 entries. If a set is full, no new entries can be added to it. .P -An IP address will be in a nethash type of set if it is in any of the -netblocks added to the set and the matching always start from the smallest -size of netblock (most specific netmask) to the biggest ones (least +An IP address will be in a nethash type of set if it belongs to any of the +netblocks added to the set. The matching always start from the smallest +size of netblock (most specific netmask) to the largest ones (least specific netmasks). When adding/deleting IP addresses to a nethash set by the .I SET netfilter kernel module, it will be added/deleted by the smallest -netblock size which can be found in the set. +netblock size which can be found in the set, or by /31 if the set is empty. .P -The lookup time in a nethash type of set is approximately linearly -grows with the times of the +The lookup time in a nethash type of set grows approximately linearly +with the times of the .B probes parameter and the number of different mask parameters in the hash. @@ -374,8 +369,7 @@ store up to 65536 (B-class network) IP addresses with all possible port values. When adding, deleting and testing values in an ipporthash type of set, the entries must be specified as .B -"IP:port". -(Old "IP%port" format accepted as well.) +"IP,port". .P The ipporthash types of sets evaluates two src/dst parameters of the .I @@ -411,6 +405,94 @@ number of double-hashing. .P The same resizing, speed and memory efficiency comments applies here as at the iphash type. +.SS ipportiphash +The ipportiphash set type uses a hash to store IP address,port and IP +address triples. The first IP address must come form a maximum /16 +sized network or range while the port number and the second IP address +parameters are arbitrary. When adding, deleting and testing values in an +ipportiphash type of set, the entries must be specified as +.B +"IP,port,IP". +.P +The ipportiphash types of sets evaluates three src/dst parameters of the +.I +set +match and +.I +SET +target. +.P +Options to use when creating an ipportiphash set: +.TP +.BR "--from " from-IP +.TP +.BR "--to " to-IP +Create an ipportiphash set from the specified range. +.TP +.BR "--network " IP/mask +Create an ipportiphash set from the specified network. +.TP +.BR "--hashsize " hashsize +The initial hash size (default 1024) +.TP +.BR "--probes " probes +How many times try to resolve clashing at adding an IP to the hash +by double-hashing (default 8). +.TP +.BR "--resize " percent +Increase the hash size by this many percent (default 50) when adding +an IP to the hash could not be performed after +.B +probes +number of double-hashing. +.P +The same resizing, speed and memory efficiency comments applies here +as at the iphash type. +.SS ipportnethash +The ipportnethash set type uses a hash to store IP address, port, and +network address triples. The IP address must come form a maximum /16 +sized network or range while the port number and the network address +parameters are arbitrary, but the size of the network address must be +between /1-/31. When adding, deleting +and testing values in an ipportnethash type of set, the entries must be +specified as +.B +"IP,port,IP/cidr-size". +.P +The ipportnethash types of sets evaluates three src/dst parameters of the +.I +set +match and +.I +SET +target. +.P +Options to use when creating an ipportnethash set: +.TP +.BR "--from " from-IP +.TP +.BR "--to " to-IP +Create an ipporthash set from the specified range. +.TP +.BR "--network " IP/mask +Create an ipporthash set from the specified network. +.TP +.BR "--hashsize " hashsize +The initial hash size (default 1024) +.TP +.BR "--probes " probes +How many times try to resolve clashing at adding an IP to the hash +by double-hashing (default 8). +.TP +.BR "--resize " percent +Increase the hash size by this many percent (default 50) when adding +an IP to the hash could not be performed after +.B +probes +number of double-hashing. +.P +The same resizing, speed and memory efficiency comments applies here +as at the iphash type. .SS iptree The iptree set type uses a tree to store IP addresses, optionally with timeout values. @@ -424,7 +506,7 @@ If a set was created with a nonzero valued .B "--timeout" parameter then one may add IP addresses to the set with a specific timeout value using the syntax -.I IP:timeout-value. +.I IP,timeout-value. Similarly to the hash types, the iptree type of sets can store up to 65536 entries. .SS iptreemap @@ -432,12 +514,67 @@ The iptreemap set type uses a tree to store IP addresses or networks, where the last octet of an IP address are stored in a bitmap. As input entry, you can add IP addresses, CIDR blocks or network ranges to the set. Network ranges can be specified in the format -.I IP1:IP2 +.I IP1-IP2 .P Options to use when creating an iptreemap set: .TP .BR "--gc " value How often the garbage collection should be called, in seconds (default 300) +.SS setlist +The setlist type uses a simple list in which you can store sets. By the +.I +ipset +command you can add, delete and test sets in a setlist type of set. +You can specify the sets as +.B +"setname[,after|before,setname]". +By default new sets are added after (appended to) the existing +elements. Setlist type of sets cannot be added to a setlist type of set. +.P +Options to use when creating a setlist type of set: +.TP +.BR "--size " size +Create a setlist type of set with the given size (default 8). +.P +By the +.I +set +match or +.I +SET +target of +.I +iptables +you can test, add or delete entries in the sets. The match +will try to find a matching IP address/port in the sets and +the target will try to add the IP address/port to the first set +to which it can be added. The number of src,dst options of +the match and target are important: sets which eats more src,dst +parameters than specified are skipped, while sets with equal +or less parameters are checked, elements added. For example +if +.I +a +and +.I +b +are setlist type of sets then in the command +.TP +iptables -m set --match-set a src,dst -j SET --add-set b src,dst +the match and target will skip any set in +.I a +and +.I b +which stores +data triples, but will check all sets with single or double +data storage in +.I a +set and add src to the first single or src,dst to the first double +data storage set in +.I b. +.P +You can imagine a setlist type of set as an ordered union of +the set elements. .SH GENERAL RESTRICTIONS Setnames starting with colon (:) cannot be defined. Zero valued set entries cannot be used with hash type of sets. @@ -447,6 +584,8 @@ If you want to store same size subnets from a given network If you want to store random same size networks (say random /24 blocks), use the iphash set type. If you have got random size of netblocks, use nethash. +.P +Old separator tokens (':' and '%") are still accepted. .SH DIAGNOSTICS Various error messages are printed to standard error. The exit code is 0 for correct functioning. Errors which appear to be caused by diff --git a/extensions/ipset/ipset.c b/extensions/ipset/ipset.c index 2180493..6bb4e4f 100644 --- a/extensions/ipset/ipset.c +++ b/extensions/ipset/ipset.c @@ -7,23 +7,22 @@ * published by the Free Software Foundation. */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -/* #include */ +#include /* *printf, perror, sscanf, fdopen */ +#include /* mem*, str* */ +#include /* errno, perror */ +#include /* time, ctime */ +#include /* gethostby*, getnetby*, getservby* */ +#include /* exit, malloc, free, strtol, getenv, mkstemp */ +#include /* read, close, fork, exec*, unlink */ +#include /* open, wait, socket, *sockopt, umask */ +#include /* open, umask */ +#include /* wait */ +#include /* socket, *sockopt, gethostby*, inet_* */ +#include /* inet_* */ +#include /* open */ +#include /* htonl, inet_* */ +#include /* va_* */ +#include /* dlopen */ #include "ipset.h" @@ -31,11 +30,11 @@ #define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe" #endif -#define IPSET_VERSION "2.3.2a" +#define IPSET_VERSION "2.4.3" char program_name[] = "ipset"; char program_version[] = IPSET_VERSION; -const char *xtables_libdir = XTABLES_LIBDIR; +const char *ipset_libdir = IPSET_LIB_DIR; /* The list of loaded set types */ static struct settype *all_settypes = NULL; @@ -53,7 +52,8 @@ void *restore_data = NULL; struct ip_set_restore *restore_set = NULL; size_t restore_offset = 0; socklen_t restore_size; -unsigned int g_line = 0; +unsigned restore_line = 0; +unsigned warn_once = 0; #define TEMPFILE_PATTERN "/ipsetXXXXXX" @@ -78,9 +78,10 @@ static const char cmdflags[] = { ' ', /* CMD_NONE */ #define OPT_QUIET 0x0004U /* -q */ #define OPT_DEBUG 0x0008U /* -z */ #define OPT_BINDING 0x0010U /* -b */ -#define NUMBER_OF_OPT 5 +#define OPT_RESOLVE 0x0020U /* -r */ +#define NUMBER_OF_OPT 6 static const char optflags[] = - { 'n', 's', 'q', 'z', 'b' }; + { 'n', 's', 'q', 'z', 'b', 'r' }; static struct option opts_long[] = { /* set operations */ @@ -108,6 +109,7 @@ static struct option opts_long[] = { {"sorted", 0, 0, 's'}, {"quiet", 0, 0, 'q'}, {"binding", 1, 0, 'b'}, + {"resolve", 0, 0, 'r'}, #ifdef IPSET_DEBUG /* debug (if compiled with it) */ @@ -119,11 +121,11 @@ static struct option opts_long[] = { {"help", 2, 0, 'H'}, /* end */ - {0} + {NULL}, }; static char opts_short[] = - "-N:X::F::E:W:L::S::RA:D:T:B:U:nsqzb:Vh::H::"; + "-N:X::F::E:W:L::S::RA:D:T:B:U:nrsqzb:Vh::H::"; /* Table of legal combinations of commands and options. If any of the * given commands make an option legal, that option is legal. @@ -135,21 +137,21 @@ static char opts_short[] = static char commands_v_options[NUMBER_OF_CMD][NUMBER_OF_OPT] = { /* -n -s -q -z -b */ - /*CREATE*/ {'x', 'x', ' ', ' ', 'x'}, - /*DESTROY*/ {'x', 'x', ' ', ' ', 'x'}, - /*FLUSH*/ {'x', 'x', ' ', ' ', 'x'}, - /*RENAME*/ {'x', 'x', ' ', ' ', 'x'}, - /*SWAP*/ {'x', 'x', ' ', ' ', 'x'}, - /*LIST*/ {' ', ' ', 'x', ' ', 'x'}, - /*SAVE*/ {'x', 'x', ' ', ' ', 'x'}, - /*RESTORE*/ {'x', 'x', ' ', ' ', 'x'}, - /*ADD*/ {'x', 'x', ' ', ' ', 'x'}, - /*DEL*/ {'x', 'x', ' ', ' ', 'x'}, - /*TEST*/ {'x', 'x', ' ', ' ', ' '}, - /*BIND*/ {'x', 'x', ' ', ' ', '+'}, - /*UNBIND*/ {'x', 'x', ' ', ' ', 'x'}, - /*HELP*/ {'x', 'x', 'x', ' ', 'x'}, - /*VERSION*/ {'x', 'x', 'x', ' ', 'x'}, + /*CREATE*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*DESTROY*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*FLUSH*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*RENAME*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*SWAP*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*LIST*/ {' ', ' ', 'x', ' ', 'x', ' '}, + /*SAVE*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*RESTORE*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*ADD*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*DEL*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*TEST*/ {'x', 'x', ' ', ' ', ' ', 'x'}, + /*BIND*/ {'x', 'x', ' ', ' ', '+', 'x'}, + /*UNBIND*/ {'x', 'x', ' ', ' ', 'x', 'x'}, + /*HELP*/ {'x', 'x', 'x', ' ', 'x', 'x'}, + /*VERSION*/ {'x', 'x', 'x', ' ', 'x', 'x'}, }; /* Main parser function */ @@ -173,8 +175,8 @@ void exit_error(enum exittype status, const char *msg, ...) vfprintf(stderr, msg, args); va_end(args); fprintf(stderr, "\n"); - if (g_line) - fprintf(stderr, "Restore failed at line %u:\n", g_line); + if (restore_line) + fprintf(stderr, "Restore failed at line %u:\n", restore_line); if (status == PARAMETER_PROBLEM) exit_tryhelp(status); if (status == VERSION_PROBLEM) @@ -186,7 +188,7 @@ void exit_error(enum exittype status, const char *msg, ...) exit(status); } -static void ipset_printf(const char *msg, ...) +static void ipset_printf(char *msg, ...) { va_list args; @@ -352,11 +354,12 @@ static void kernel_error(unsigned cmd, int err) { ENOENT, 0, "Unknown set" }, { EAGAIN, 0, "Sets are busy, try again later" }, { ERANGE, CMD_CREATE, "No free slot remained to add a new set" }, - { ERANGE, 0, "IP/port is outside of the set" }, + { ERANGE, 0, "IP/port/element is outside of the set or set is full" }, { ENOEXEC, CMD_CREATE, "Invalid parameters to create a set" }, { ENOEXEC, CMD_SWAP, "Sets with different types cannot be swapped" }, { EEXIST, CMD_CREATE, "Set already exists" }, { EEXIST, CMD_RENAME, "Set with new name already exists" }, + { EEXIST, 0, "Set specified as element does not exist" }, { EBUSY, 0, "Set is in use, operation not permitted" }, }; for (i = 0; i < sizeof(table)/sizeof(struct translate_error); i++) { @@ -432,7 +435,7 @@ static void kernel_sendto(unsigned cmd, void *data, size_t size) kernel_error(cmd, errno); } -static int kernel_getfrom_handleerrno(unsigned cmd, void *data, size_t * size) +static int kernel_getfrom_handleerrno(unsigned cmd, void *data, socklen_t *size) { int res = wrapped_getsockopt(data, size); @@ -513,13 +516,12 @@ char *ipset_strdup(const char *s) return p; } -void ipset_free(void **data) +void ipset_free(void *data) { - if (*data == NULL) + if (data == NULL) return; - free(*data); - *data = NULL; + free(data); } static struct option *merge_options(struct option *oldopts, @@ -771,7 +773,8 @@ static struct settype *settype_find(const char *typename) static struct settype *settype_load(const char *typename) { - char path[256]; + char path[strlen(ipset_libdir) + sizeof(IPSET_LIB_NAME) + + strlen(typename)]; struct settype *settype; /* do some search in list */ @@ -780,8 +783,7 @@ static struct settype *settype_load(const char *typename) return settype; /* found */ /* Else we have to load it */ - snprintf(path, sizeof(path), "%s/libipset_%s.so", - xtables_libdir, typename); + sprintf(path, "%s" IPSET_LIB_NAME, ipset_libdir, typename); if (dlopen(path, RTLD_NOW)) { /* Found library. */ @@ -859,7 +861,7 @@ void settype_register(struct settype *settype) } /* Find set functions */ -static struct set *set_find_byid(ip_set_id_t id) +struct set *set_find_byid(ip_set_id_t id) { struct set *set = NULL; ip_set_id_t i; @@ -876,7 +878,7 @@ static struct set *set_find_byid(ip_set_id_t id) return set; } -static struct set *set_find_byname(const char *name) +struct set *set_find_byname(const char *name) { struct set *set = NULL; ip_set_id_t i; @@ -910,7 +912,7 @@ static ip_set_id_t set_find_free_index(const char *name) name); } - if (idx == IP_SET_INVALID_ID) + if (idx == IP_SET_INVALID_ID) exit_error(PARAMETER_PROBLEM, "Set %s cannot be restored, " "max number of set %u reached", @@ -1137,6 +1139,11 @@ static size_t save_bindings(void *data, size_t offset, size_t len) if (!(set && set_list[hash->binding])) exit_error(OTHER_PROBLEM, "Save binding failed, try again later."); + if (!set->settype->bindip_tostring) + exit_error(OTHER_PROBLEM, + "Internal error, binding is not supported with set %s" + " of settype %s\n", + set->name, set->settype->typename); printf("-B %s %s -b %s\n", set->name, set->settype->bindip_tostring(set, hash->ip, OPT_NUMERIC), @@ -1263,7 +1270,7 @@ static int try_save_sets(const char name[IP_SET_MAXNAMELEN]) printf("COMMIT\n"); now = time(NULL); printf("# Completed on %s", ctime(&now)); - ipset_free(&data); + ipset_free(data); return res; } @@ -1357,7 +1364,7 @@ static void set_restore(char *argv0) char buffer[1024]; char *ptr, *name = NULL; char cmd = ' '; - int line = 0, first_pass, i, bindings = 0; + int restore_line = 0, first_pass, i, bindings = 0; struct settype *settype = NULL; struct ip_set_req_setnames *header; ip_set_id_t idx; @@ -1376,7 +1383,7 @@ static void set_restore(char *argv0) DP("restore_size: %u", restore_size); /* First pass: calculate required amount of data */ while (fgets(buffer, sizeof(buffer), in)) { - line++; + restore_line++; if (buffer[0] == '\n') continue; @@ -1399,7 +1406,7 @@ static void set_restore(char *argv0) || ptr[2] != '\0') { exit_error(PARAMETER_PROBLEM, "Line %u does not start as a valid restore command\n", - line); + restore_line); } cmd = ptr[1]; /* setname */ @@ -1408,7 +1415,7 @@ static void set_restore(char *argv0) if (ptr == NULL) exit_error(PARAMETER_PROBLEM, "Missing set name in line %u\n", - line); + restore_line); DP("cmd %c", cmd); switch (cmd) { case 'N': { @@ -1418,11 +1425,11 @@ static void set_restore(char *argv0) if (ptr == NULL) exit_error(PARAMETER_PROBLEM, "Missing settype in line %u\n", - line); + restore_line); if (bindings) exit_error(PARAMETER_PROBLEM, "Invalid line %u: create must precede bindings\n", - line); + restore_line); settype = check_set_typename(ptr); restore_size += sizeof(struct ip_set_restore) + settype->create_size; @@ -1435,11 +1442,11 @@ static void set_restore(char *argv0) exit_error(PARAMETER_PROBLEM, "Add IP to set %s in line %u without " "preceding corresponding create set line\n", - ptr, line); + ptr, restore_line); if (bindings) exit_error(PARAMETER_PROBLEM, "Invalid line %u: adding entries must precede bindings\n", - line); + restore_line); restore_size += settype->adt_size; DP("restore_size (A): %u", restore_size); break; @@ -1453,7 +1460,7 @@ static void set_restore(char *argv0) default: { exit_error(PARAMETER_PROBLEM, "Unrecognized restore command in line %u\n", - line); + restore_line); } } /* end of switch */ } @@ -1470,15 +1477,15 @@ static void set_restore(char *argv0) /* Rewind to scan the file again */ fseek(in, 0L, SEEK_SET); - first_pass = line; - line = 0; + first_pass = restore_line; + restore_line = 0; /* Initialize newargv/newargc */ newargv[newargc++] = ipset_strdup(argv0); /* Second pass: build up restore request */ while (fgets(buffer, sizeof(buffer), in)) { - line++; + restore_line++; if (buffer[0] == '\n') continue; @@ -1488,7 +1495,7 @@ static void set_restore(char *argv0) goto do_restore; DP("restoring: %s", buffer); /* Build faked argv, argc */ - build_argv(line, buffer); + build_argv(restore_line, buffer); for (i = 0; i < newargc; i++) DP("argv[%u]: %s", i, newargv[i]); @@ -1641,9 +1648,14 @@ static int set_bind(struct set *set, const char *adt, DP("(%s, %s) -> %s", set ? set->name : IPSET_TOKEN_ALL, adt, binding); /* Ugly */ - if (set && strcmp(set->settype->typename, "iptreemap") == 0) + if (set != NULL + && ((strcmp(set->settype->typename, "iptreemap") == 0) + || (strcmp(set->settype->typename, "ipportiphash") == 0) + || (strcmp(set->settype->typename, "ipportnethash") == 0) + || (strcmp(set->settype->typename, "setlist") == 0))) exit_error(PARAMETER_PROBLEM, - "iptreemap type of sets cannot be used at binding operations\n"); + "%s type of sets cannot be used at binding operations\n", + set->settype->typename); /* Alloc memory for the data to send */ size = sizeof(struct ip_set_req_bind); if (op != IP_SET_OP_UNBIND_SET && adt[0] == ':') @@ -1717,8 +1729,14 @@ static void set_restore_bind(struct set *set, DP("%s -> %s", adt, binding); if (strcmp(adt, IPSET_TOKEN_DEFAULT) == 0) hash_restore->ip = 0; - else + else { + if (!set->settype->bindip_parse) + exit_error(OTHER_PROBLEM, + "Internal error, binding is not supported with set %s" + " of settype %s\n", + set->name, set->settype->typename); set->settype->bindip_parse(adt, &hash_restore->ip); + } hash_restore->id = set->index; hash_restore->binding = (set_find_byname(binding))->index; DP("id %u, ip %u, binding %u", @@ -1738,6 +1756,12 @@ static void print_bindings(struct set *set, size_t offset = 0; struct ip_set_hash_list *hash; + if (offset < size && !printip) + exit_error(OTHER_PROBLEM, + "Internal error, binding is not supported with set %s" + " of settype %s\n", + set->name, set->settype->typename); + while (offset < size) { hash = (struct ip_set_hash_list *) (data + offset); printf("%s -> %s\n", @@ -1750,7 +1774,7 @@ static void print_bindings(struct set *set, /* Help function to set_list() */ static size_t print_set(void *data, unsigned options) { - struct ip_set_list *setlist = (struct ip_set_list *) data; + struct ip_set_list *setlist = data; struct set *set = set_list[setlist->index]; struct settype *settype = set->settype; size_t offset; @@ -1784,7 +1808,8 @@ static size_t print_set(void *data, unsigned options) /* Print bindings */ printf("Bindings:\n"); offset += setlist->members_size; - print_bindings(set, + if (set->settype->bindip_tostring) + print_bindings(set, data + offset, setlist->bindings_size, options, settype->bindip_tostring); @@ -1801,6 +1826,10 @@ static int try_list_sets(const char name[IP_SET_MAXNAMELEN], socklen_t size, req_size; int res = 0; + /* Default is numeric listing */ + if (!(options & (OPT_RESOLVE|OPT_NUMERIC))) + options |= OPT_NUMERIC; + DP("%s", name); /* Load set_list from kernel */ size = req_size = load_set_list(name, &idx, @@ -1823,7 +1852,7 @@ static int try_list_sets(const char name[IP_SET_MAXNAMELEN], while (size != req_size) size += print_set(data + size, options); - ipset_free(&data); + ipset_free(data); return res; } @@ -1910,7 +1939,8 @@ static void set_help(const struct settype *settype) " Prints version information\n\n" "Options:\n" " --sorted -s Numeric sort of the IPs in -L\n" - " --numeric -n Numeric output of addresses in a -L\n" + " --numeric -n Numeric output of addresses in a -L (default)\n" + " --resolve -r Try to resolve addresses in a -L\n" " --quiet -q Suppress any output to stdout and stderr.\n" " --binding -b Specifies the binding for -B\n"); printf(debughelp); @@ -2146,6 +2176,11 @@ int parse_commandline(int argc, char *argv[]) add_option(&options, OPT_NUMERIC); break; + case 'r': + if (!(options & OPT_NUMERIC)) + add_option(&options, OPT_RESOLVE); + break; + case 's': add_option(&options, OPT_SORTED); break; @@ -2272,6 +2307,8 @@ int parse_commandline(int argc, char *argv[]) break; case CMD_BIND: + fprintf(stderr, "Warning: binding will be removed from the next release.\n" + "Please replace bindigs with sets of ipportmap and ipportiphash types\n"); if (restore) set_restore_bind(set, adt, binding); else @@ -2299,10 +2336,10 @@ int parse_commandline(int argc, char *argv[]) int main(int argc, char *argv[]) { - const char *p = getenv("XTABLES_LIBDIR"); + const char *p; - if (p != NULL) - xtables_libdir = p; + if ((p = getenv("IPSET_LIBDIR")) != NULL) + ipset_libdir = p; return parse_commandline(argc, argv); diff --git a/extensions/ipset/ipset.h b/extensions/ipset/ipset.h index 35153af..eccc220 100644 --- a/extensions/ipset/ipset.h +++ b/extensions/ipset/ipset.h @@ -20,12 +20,13 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include +#include /* struct option */ +#include #include -#include #include "ip_set.h" +#define IPSET_LIB_NAME "/libipset_%s.so" #define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe" #define LIST_TRIES 5 @@ -181,7 +182,12 @@ extern int string_to_number(const char *str, unsigned int min, unsigned int max, extern void *ipset_malloc(size_t size); extern char *ipset_strdup(const char *); -extern void ipset_free(void **data); +extern void ipset_free(void *data); + +extern struct set *set_find_byname(const char *name); +extern struct set *set_find_byid(ip_set_id_t id); + +extern unsigned warn_once; #define BITSPERBYTE (8*sizeof(char)) #define ID2BYTE(id) ((id)/BITSPERBYTE) diff --git a/extensions/ipset/ipset_iphash.c b/extensions/ipset/ipset_iphash.c index 9426180..c6a8e1a 100644 --- a/extensions/ipset/ipset_iphash.c +++ b/extensions/ipset/ipset_iphash.c @@ -15,24 +15,14 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "ip_set_iphash.h" -#include "ip_set_jhash.h" +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem* */ #include "ipset.h" +#include "ip_set_iphash.h" + #define BUFLEN 30; #define OPT_CREATE_HASHSIZE 0x01U @@ -41,10 +31,10 @@ #define OPT_CREATE_NETMASK 0x08U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { - struct ip_set_req_iphash_create *mydata = - (struct ip_set_req_iphash_create *) data; + struct ip_set_req_iphash_create *mydata = data; DP("create INIT"); @@ -57,7 +47,8 @@ static void create_init(void *data) } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { struct ip_set_req_iphash_create *mydata = (struct ip_set_req_iphash_create *) data; @@ -125,11 +116,11 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { #ifdef IPSET_DEBUG - struct ip_set_req_iphash_create *mydata = - (struct ip_set_req_iphash_create *) data; + struct ip_set_req_iphash_create *mydata = data; DP("hashsize %u probes %u resize %u", mydata->hashsize, mydata->probes, mydata->resize); @@ -138,23 +129,23 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"hashsize", 1, 0, '1'}, - {"probes", 1, 0, '2'}, - {"resize", 1, 0, '3'}, - {"netmask", 1, 0, '4'}, + {.name = "hashsize", .has_arg = required_argument, .val = '1'}, + {.name = "probes", .has_arg = required_argument, .val = '2'}, + {.name = "resize", .has_arg = required_argument, .val = '3'}, + {.name = "netmask", .has_arg = required_argument, .val = '4'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_iphash *mydata = - (struct ip_set_req_iphash *) data; + struct ip_set_req_iphash *mydata = data; - parse_ip(arg, &mydata->ip); + parse_ip(optarg, &mydata->ip); if (!mydata->ip) exit_error(PARAMETER_PROBLEM, - "Zero valued IP address `%s' specified", arg); + "Zero valued IP address `%s' specified", optarg); return mydata->ip; }; @@ -163,12 +154,11 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_iphash_create *header = - (struct ip_set_req_iphash_create *) data; - struct ip_set_iphash *map = - (struct ip_set_iphash *) set->settype->header; + const struct ip_set_req_iphash_create *header = data; + struct ip_set_iphash *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_iphash)); map->hashsize = header->hashsize; @@ -193,10 +183,10 @@ mask_to_bits(ip_set_ip_t mask) return bits; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_iphash *mysetdata = - (struct ip_set_iphash *) set->settype->header; + struct ip_set_iphash *mysetdata = set->settype->header; printf(" hashsize: %u", mysetdata->hashsize); printf(" probes: %u", mysetdata->probes); @@ -207,8 +197,8 @@ static void printheader(struct set *set, unsigned int options) printf(" netmask: %d\n", mask_to_bits(mysetdata->netmask)); } -static void printips(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips(struct set *set, void *data, size_t len, unsigned options) { size_t offset = 0; ip_set_ip_t *ip; @@ -221,10 +211,10 @@ static void printips(struct set *set, void *data, size_t len, } } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_iphash *mysetdata = - (struct ip_set_iphash *) set->settype->header; + struct ip_set_iphash *mysetdata = set->settype->header; printf("-N %s %s --hashsize %u --probes %u --resize %u", set->name, set->settype->typename, @@ -236,8 +226,8 @@ static void saveheader(struct set *set, unsigned int options) } /* Print save for an IP */ -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { size_t offset = 0; ip_set_ip_t *ip; diff --git a/extensions/ipset/ipset_ipmap.c b/extensions/ipset/ipset_ipmap.c index 9a0619c..9ff85e1 100644 --- a/extensions/ipset/ipset_ipmap.c +++ b/extensions/ipset/ipset_ipmap.c @@ -17,15 +17,12 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -/* #include */ +#include /* *printf */ +#include /* mem* */ + +#include "ipset.h" #include "ip_set_ipmap.h" -#include "ipset.h" #define BUFLEN 30; @@ -37,20 +34,20 @@ #define OPT_ADDDEL_IP 0x01U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { - struct ip_set_req_ipmap_create *mydata = - (struct ip_set_req_ipmap_create *) data; + struct ip_set_req_ipmap_create *mydata = data; DP("create INIT"); mydata->netmask = 0xFFFFFFFF; } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_ipmap_create *mydata = - (struct ip_set_req_ipmap_create *) data; + struct ip_set_req_ipmap_create *mydata = data; unsigned int bits; DP("create_parse"); @@ -116,15 +113,12 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) return 1; } -#define ERRSTRLEN 256 - /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { - struct ip_set_req_ipmap_create *mydata = - (struct ip_set_req_ipmap_create *) data; + struct ip_set_req_ipmap_create *mydata = data; ip_set_ip_t range; - char errstr[ERRSTRLEN]; if (flags == 0) exit_error(PARAMETER_PROBLEM, @@ -154,7 +148,7 @@ static void create_final(void *data, unsigned int flags) if (flags & OPT_CREATE_NETMASK) { unsigned int mask_bits, netmask_bits; ip_set_ip_t mask; - + if ((mydata->from & mydata->netmask) != mydata->from) exit_error(PARAMETER_PROBLEM, "%s is not a network address according to netmask %d\n", @@ -164,26 +158,14 @@ static void create_final(void *data, unsigned int flags) mask = range_to_mask(mydata->from, mydata->to, &mask_bits); if (!mask && (mydata->from || mydata->to != 0xFFFFFFFF)) { - strncpy(errstr, ip_tostring_numeric(mydata->from), - ERRSTRLEN-2); - errstr[ERRSTRLEN-1] = '\0'; exit_error(PARAMETER_PROBLEM, - "%s-%s is not a full network (%x)\n", - errstr, - ip_tostring_numeric(mydata->to), mask); + "You have to define a full network with --from" + " and --to if you specify the --network option\n"); } netmask_bits = mask_to_bits(mydata->netmask); - if (netmask_bits <= mask_bits) { - strncpy(errstr, ip_tostring_numeric(mydata->from), - ERRSTRLEN-2); - errstr[ERRSTRLEN-1] = '\0'; exit_error(PARAMETER_PROBLEM, - "%d netmask specifies larger or equal netblock than %s-%s (%d)\n", - netmask_bits, - errstr, - ip_tostring_numeric(mydata->to), - mask_bits); + "%d netmask specifies larger or equal netblock than the network itself\n"); } range = (1<<(netmask_bits - mask_bits)) - 1; } else { @@ -197,22 +179,22 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"from", 1, 0, '1'}, - {"to", 1, 0, '2'}, - {"network", 1, 0, '3'}, - {"netmask", 1, 0, '4'}, + {.name = "from", .has_arg = required_argument, .val = '1'}, + {.name = "to", .has_arg = required_argument, .val = '2'}, + {.name = "network", .has_arg = required_argument, .val = '3'}, + {.name = "netmask", .has_arg = required_argument, .val = '4'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_ipmap *mydata = - (struct ip_set_req_ipmap *) data; + struct ip_set_req_ipmap *mydata = data; - DP("ipmap: %p %p", arg, data); + DP("ipmap: %p %p", optarg, data); - parse_ip(arg, &mydata->ip); + parse_ip(optarg, &mydata->ip); DP("%s", ip_tostring_numeric(mydata->ip)); return 1; @@ -222,12 +204,11 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_ipmap_create *header = - (struct ip_set_req_ipmap_create *) data; - struct ip_set_ipmap *map = - (struct ip_set_ipmap *) set->settype->header; + const struct ip_set_req_ipmap_create *header = data; + struct ip_set_ipmap *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_ipmap)); map->first_ip = header->from; @@ -252,10 +233,10 @@ static void initheader(struct set *set, const void *data) DP("%i %i", map->hosts, map->sizeid ); } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_ipmap *mysetdata = - (struct ip_set_ipmap *) set->settype->header; + struct ip_set_ipmap *mysetdata = set->settype->header; printf(" from: %s", ip_tostring(mysetdata->first_ip, options)); printf(" to: %s", ip_tostring(mysetdata->last_ip, options)); @@ -265,11 +246,10 @@ static void printheader(struct set *set, unsigned int options) printf(" netmask: %d\n", mask_to_bits(mysetdata->netmask)); } -static void printips_sorted(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips_sorted(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_ipmap *mysetdata = - (struct ip_set_ipmap *) set->settype->header; + struct ip_set_ipmap *mysetdata = set->settype->header; ip_set_ip_t id; for (id = 0; id < mysetdata->sizeid; id++) @@ -280,10 +260,10 @@ static void printips_sorted(struct set *set, void *data, size_t len, options)); } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_ipmap *mysetdata = - (struct ip_set_ipmap *) set->settype->header; + struct ip_set_ipmap *mysetdata = set->settype->header; printf("-N %s %s --from %s", set->name, set->settype->typename, @@ -297,11 +277,10 @@ static void saveheader(struct set *set, unsigned int options) mask_to_bits(mysetdata->netmask)); } -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_ipmap *mysetdata = - (struct ip_set_ipmap *) set->settype->header; + struct ip_set_ipmap *mysetdata = set->settype->header; ip_set_ip_t id; DP("%s", set->name); diff --git a/extensions/ipset/ipset_ipporthash.c b/extensions/ipset/ipset_ipporthash.c index eecacf5..69119ab 100644 --- a/extensions/ipset/ipset_ipporthash.c +++ b/extensions/ipset/ipset_ipporthash.c @@ -15,24 +15,14 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "ip_set_ipporthash.h" -#include "ip_set_jhash.h" +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem*, str* */ #include "ipset.h" +#include "ip_set_ipporthash.h" + #define OPT_CREATE_HASHSIZE 0x01U #define OPT_CREATE_PROBES 0x02U #define OPT_CREATE_RESIZE 0x04U @@ -41,10 +31,10 @@ #define OPT_CREATE_TO 0x20U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { - struct ip_set_req_ipporthash_create *mydata = - (struct ip_set_req_ipporthash_create *) data; + struct ip_set_req_ipporthash_create *mydata = data; DP("create INIT"); @@ -55,10 +45,10 @@ static void create_init(void *data) } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_ipporthash_create *mydata = - (struct ip_set_req_ipporthash_create *) data; + struct ip_set_req_ipporthash_create *mydata = data; ip_set_ip_t value; DP("create_parse"); @@ -146,10 +136,10 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { - struct ip_set_req_ipporthash_create *mydata = - (struct ip_set_req_ipporthash_create *) data; + struct ip_set_req_ipporthash_create *mydata = data; #ifdef IPSET_DEBUG DP("hashsize %u probes %u resize %u", @@ -188,34 +178,38 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"hashsize", 1, 0, '1'}, - {"probes", 1, 0, '2'}, - {"resize", 1, 0, '3'}, - {"from", 1, 0, '4'}, - {"to", 1, 0, '5'}, - {"network", 1, 0, '6'}, + {.name = "hashsize", .has_arg = required_argument, .val = '1'}, + {.name = "probes", .has_arg = required_argument, .val = '2'}, + {.name = "resize", .has_arg = required_argument, .val = '3'}, + {.name = "from", .has_arg = required_argument, .val = '4'}, + {.name = "to", .has_arg = required_argument, .val = '5'}, + {.name = "network", .has_arg = required_argument, .val = '6'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_ipporthash *mydata = - (struct ip_set_req_ipporthash *) data; - char *saved = ipset_strdup(arg); + struct ip_set_req_ipporthash *mydata = data; + char *saved = ipset_strdup(optarg); char *ptr, *tmp = saved; - DP("ipporthash: %p %p", arg, data); + DP("ipporthash: %p %p", optarg, data); - ptr = strsep(&tmp, ":%"); + if (((ptr = strchr(tmp, ':')) || (ptr = strchr(tmp, '%'))) && ++warn_once == 1) + fprintf(stderr, "Warning: please use ',' separator token between ip,port.\n" + "Next release won't support old separator tokens.\n"); + + ptr = strsep(&tmp, ":%,"); parse_ip(ptr, &mydata->ip); if (tmp) parse_port(tmp, &mydata->port); else exit_error(PARAMETER_PROBLEM, - "IP address and port must be specified: ip%%port"); - free(saved); + "IP address and port must be specified: ip,port"); + ipset_free(saved); return 1; }; @@ -223,12 +217,11 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_ipporthash_create *header = - (struct ip_set_req_ipporthash_create *) data; - struct ip_set_ipporthash *map = - (struct ip_set_ipporthash *) set->settype->header; + const struct ip_set_req_ipporthash_create *header = data; + struct ip_set_ipporthash *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_ipporthash)); map->hashsize = header->hashsize; @@ -238,10 +231,10 @@ static void initheader(struct set *set, const void *data) map->last_ip = header->to; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_ipporthash *mysetdata = - (struct ip_set_ipporthash *) set->settype->header; + struct ip_set_ipporthash *mysetdata = set->settype->header; printf(" from: %s", ip_tostring(mysetdata->first_ip, options)); printf(" to: %s", ip_tostring(mysetdata->last_ip, options)); @@ -250,11 +243,10 @@ static void printheader(struct set *set, unsigned int options) printf(" resize: %u\n", mysetdata->resize); } -static void printips(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_ipporthash *mysetdata = - (struct ip_set_ipporthash *) set->settype->header; + struct ip_set_ipporthash *mysetdata = set->settype->header; size_t offset = 0; ip_set_ip_t *ipptr, ip; uint16_t port; @@ -264,7 +256,7 @@ static void printips(struct set *set, void *data, size_t len, if (*ipptr) { ip = (*ipptr>>16) + mysetdata->first_ip; port = (uint16_t) *ipptr; - printf("%s:%s\n", + printf("%s,%s\n", ip_tostring(ip, options), port_tostring(port, options)); } @@ -272,10 +264,10 @@ static void printips(struct set *set, void *data, size_t len, } } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_ipporthash *mysetdata = - (struct ip_set_ipporthash *) set->settype->header; + struct ip_set_ipporthash *mysetdata = set->settype->header; printf("-N %s %s --from %s", set->name, set->settype->typename, @@ -287,11 +279,10 @@ static void saveheader(struct set *set, unsigned int options) } /* Print save for an IP */ -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_ipporthash *mysetdata = - (struct ip_set_ipporthash *) set->settype->header; + struct ip_set_ipporthash *mysetdata = set->settype->header; size_t offset = 0; ip_set_ip_t *ipptr, ip; uint16_t port; @@ -301,7 +292,7 @@ static void saveips(struct set *set, void *data, size_t len, if (*ipptr) { ip = (*ipptr>>16) + mysetdata->first_ip; port = (uint16_t) *ipptr; - printf("-A %s %s:%s\n", set->name, + printf("-A %s %s,%s\n", set->name, ip_tostring(ip, options), port_tostring(port, options)); } @@ -311,15 +302,15 @@ static void saveips(struct set *set, void *data, size_t len, static char buffer[22]; -static char * unpack_ipport_tostring(struct set *set, ip_set_ip_t bip, unsigned options) +static char * +unpack_ipport_tostring(struct set *set, ip_set_ip_t bip, unsigned options) { - struct ip_set_ipporthash *mysetdata = - (struct ip_set_ipporthash *) set->settype->header; + struct ip_set_ipporthash *mysetdata = set->settype->header; ip_set_ip_t ip, port; ip = (bip>>16) + mysetdata->first_ip; port = (uint16_t) bip; - sprintf(buffer, "%s:%s", + sprintf(buffer, "%s,%s", ip_tostring(ip, options), port_tostring(port, options)); return buffer; @@ -332,9 +323,9 @@ static void usage(void) " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" "-N set ipporthash --network IP/mask\n" " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" - "-A set IP:port\n" - "-D set IP:port\n" - "-T set IP:port\n"); + "-A set IP,port\n" + "-D set IP,port\n" + "-T set IP,port\n"); } static struct settype settype_ipporthash = { diff --git a/extensions/ipset/ipset_ipportiphash.c b/extensions/ipset/ipset_ipportiphash.c new file mode 100644 index 0000000..f4a0e10 --- /dev/null +++ b/extensions/ipset/ipset_ipportiphash.c @@ -0,0 +1,358 @@ +/* Copyright 2008 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem*, str* */ + +#include "ipset.h" + +#include "ip_set_ipportiphash.h" + +#define OPT_CREATE_HASHSIZE 0x01U +#define OPT_CREATE_PROBES 0x02U +#define OPT_CREATE_RESIZE 0x04U +#define OPT_CREATE_NETWORK 0x08U +#define OPT_CREATE_FROM 0x10U +#define OPT_CREATE_TO 0x20U + +/* Initialize the create. */ +static void +create_init(void *data) +{ + struct ip_set_req_ipportiphash_create *mydata = data; + + DP("create INIT"); + + /* Default create parameters */ + mydata->hashsize = 1024; + mydata->probes = 8; + mydata->resize = 50; +} + +/* Function which parses command options; returns true if it ate an option */ +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) +{ + struct ip_set_req_ipportiphash_create *mydata = data; + ip_set_ip_t value; + + DP("create_parse"); + + switch (c) { + case '1': + + if (string_to_number(optarg, 1, UINT_MAX - 1, &mydata->hashsize)) + exit_error(PARAMETER_PROBLEM, "Invalid hashsize `%s' specified", optarg); + + *flags |= OPT_CREATE_HASHSIZE; + + DP("--hashsize %u", mydata->hashsize); + + break; + + case '2': + + if (string_to_number(optarg, 1, 65535, &value)) + exit_error(PARAMETER_PROBLEM, "Invalid probes `%s' specified", optarg); + + mydata->probes = value; + *flags |= OPT_CREATE_PROBES; + + DP("--probes %u", mydata->probes); + + break; + + case '3': + + if (string_to_number(optarg, 0, 65535, &value)) + exit_error(PARAMETER_PROBLEM, "Invalid resize `%s' specified", optarg); + + mydata->resize = value; + *flags |= OPT_CREATE_RESIZE; + + DP("--resize %u", mydata->resize); + + break; + + case '4': + parse_ip(optarg, &mydata->from); + + *flags |= OPT_CREATE_FROM; + + DP("--from %x (%s)", mydata->from, + ip_tostring_numeric(mydata->from)); + + break; + + case '5': + parse_ip(optarg, &mydata->to); + + *flags |= OPT_CREATE_TO; + + DP("--to %x (%s)", mydata->to, + ip_tostring_numeric(mydata->to)); + + break; + + case '6': + parse_ipandmask(optarg, &mydata->from, &mydata->to); + + /* Make to the last of from + mask */ + if (mydata->to) + mydata->to = mydata->from | ~(mydata->to); + else { + mydata->from = 0x00000000; + mydata->to = 0xFFFFFFFF; + } + *flags |= OPT_CREATE_NETWORK; + + DP("--network from %x (%s)", + mydata->from, ip_tostring_numeric(mydata->from)); + DP("--network to %x (%s)", + mydata->to, ip_tostring_numeric(mydata->to)); + + break; + + default: + return 0; + } + + return 1; +} + +/* Final check; exit if not ok. */ +static void +create_final(void *data, unsigned int flags) +{ + struct ip_set_req_ipportiphash_create *mydata = data; + +#ifdef IPSET_DEBUG + DP("hashsize %u probes %u resize %u", + mydata->hashsize, mydata->probes, mydata->resize); +#endif + + if (flags & OPT_CREATE_NETWORK) { + /* --network */ + if ((flags & OPT_CREATE_FROM) || (flags & OPT_CREATE_TO)) + exit_error(PARAMETER_PROBLEM, + "Can't specify --from or --to with --network\n"); + } else if (flags & (OPT_CREATE_FROM | OPT_CREATE_TO)) { + /* --from --to */ + if (!(flags & OPT_CREATE_FROM) || !(flags & OPT_CREATE_TO)) + exit_error(PARAMETER_PROBLEM, + "Need to specify both --from and --to\n"); + } else { + exit_error(PARAMETER_PROBLEM, + "Need to specify --from and --to, or --network\n"); + + } + + DP("from : %x to: %x diff: %x", + mydata->from, mydata->to, + mydata->to - mydata->from); + + if (mydata->from > mydata->to) + exit_error(PARAMETER_PROBLEM, + "From can't be higher than to.\n"); + + if (mydata->to - mydata->from > MAX_RANGE) + exit_error(PARAMETER_PROBLEM, + "Range too large. Max is %d IPs in range\n", + MAX_RANGE+1); +} + +/* Create commandline options */ +static const struct option create_opts[] = { + {.name = "hashsize", .has_arg = required_argument, .val = '1'}, + {.name = "probes", .has_arg = required_argument, .val = '2'}, + {.name = "resize", .has_arg = required_argument, .val = '3'}, + {.name = "from", .has_arg = required_argument, .val = '4'}, + {.name = "to", .has_arg = required_argument, .val = '5'}, + {.name = "network", .has_arg = required_argument, .val = '6'}, + {NULL}, +}; + +/* Add, del, test parser */ +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) +{ + struct ip_set_req_ipportiphash *mydata = data; + char *saved = ipset_strdup(optarg); + char *ptr, *tmp = saved; + + DP("ipportiphash: %p %p", optarg, data); + + if (((ptr = strchr(tmp, ':')) || (ptr = strchr(tmp, '%'))) && ++warn_once == 1) + fprintf(stderr, "Warning: please use ',' separator token between ip,port,ip.\n" + "Next release won't support old separator tokens.\n"); + + ptr = strsep(&tmp, ":%,"); + parse_ip(ptr, &mydata->ip); + + if (!tmp) + exit_error(PARAMETER_PROBLEM, + "IP address, port and IP address must be specified: ip,port,ip"); + + ptr = strsep(&tmp, ":%,"); + parse_port(ptr, &mydata->port); + if (tmp) + parse_ip(tmp, &mydata->ip1); + else + exit_error(PARAMETER_PROBLEM, + "IP address, port and IP address must be specified: ip,port,ip"); + ipset_free(saved); + return 1; +}; + +/* + * Print and save + */ + +static void +initheader(struct set *set, const void *data) +{ + const struct ip_set_req_ipportiphash_create *header = data; + struct ip_set_ipportiphash *map = set->settype->header; + + memset(map, 0, sizeof(struct ip_set_ipportiphash)); + map->hashsize = header->hashsize; + map->probes = header->probes; + map->resize = header->resize; + map->first_ip = header->from; + map->last_ip = header->to; +} + +static void +printheader(struct set *set, unsigned options) +{ + struct ip_set_ipportiphash *mysetdata = set->settype->header; + + printf(" from: %s", ip_tostring(mysetdata->first_ip, options)); + printf(" to: %s", ip_tostring(mysetdata->last_ip, options)); + printf(" hashsize: %u", mysetdata->hashsize); + printf(" probes: %u", mysetdata->probes); + printf(" resize: %u\n", mysetdata->resize); +} + +static void +printips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_ipportiphash *mysetdata = set->settype->header; + size_t offset = 0; + struct ipportip *ipptr; + ip_set_ip_t ip; + uint16_t port; + + while (offset < len) { + ipptr = data + offset; + if (ipptr->ip && ipptr->ip1) { + ip = (ipptr->ip>>16) + mysetdata->first_ip; + port = (uint16_t) ipptr->ip; + printf("%s,%s,", + ip_tostring(ip, options), + port_tostring(port, options)); + printf("%s\n", + ip_tostring(ipptr->ip1, options)); + } + offset += sizeof(struct ipportip); + } +} + +static void +saveheader(struct set *set, unsigned options) +{ + struct ip_set_ipportiphash *mysetdata = set->settype->header; + + printf("-N %s %s --from %s", + set->name, set->settype->typename, + ip_tostring(mysetdata->first_ip, options)); + printf(" --to %s", + ip_tostring(mysetdata->last_ip, options)); + printf(" --hashsize %u --probes %u --resize %u\n", + mysetdata->hashsize, mysetdata->probes, mysetdata->resize); +} + +/* Print save for an IP */ +static void +saveips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_ipportiphash *mysetdata = set->settype->header; + size_t offset = 0; + struct ipportip *ipptr; + ip_set_ip_t ip; + uint16_t port; + + while (offset < len) { + ipptr = data + offset; + if (ipptr->ip && ipptr->ip1) { + ip = (ipptr->ip>>16) + mysetdata->first_ip; + port = (uint16_t) ipptr->ip; + printf("-A %s %s,%s,", set->name, + ip_tostring(ip, options), + port_tostring(port, options)); + printf("%s\n", + ip_tostring(ipptr->ip1, options)); + } + offset += sizeof(struct ipportip); + } +} + +static void usage(void) +{ + printf + ("-N set ipportiphash --from IP --to IP\n" + " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" + "-N set ipportiphash --network IP/mask\n" + " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" + "-A set IP,port,IP\n" + "-D set IP,port,IP\n" + "-T set IP,port,IP\n"); +} + +static struct settype settype_ipportiphash = { + .typename = SETTYPE_NAME, + .protocol_version = IP_SET_PROTOCOL_VERSION, + + /* Create */ + .create_size = sizeof(struct ip_set_req_ipportiphash_create), + .create_init = &create_init, + .create_parse = &create_parse, + .create_final = &create_final, + .create_opts = create_opts, + + /* Add/del/test */ + .adt_size = sizeof(struct ip_set_req_ipportiphash), + .adt_parser = &adt_parser, + + /* Printing */ + .header_size = sizeof(struct ip_set_ipportiphash), + .initheader = &initheader, + .printheader = &printheader, + .printips = &printips, /* We only have the unsorted version */ + .printips_sorted = &printips, + .saveheader = &saveheader, + .saveips = &saveips, + + .usage = &usage, +}; + +void _init(void) +{ + settype_register(&settype_ipportiphash); + +} diff --git a/extensions/ipset/ipset_ipportnethash.c b/extensions/ipset/ipset_ipportnethash.c new file mode 100644 index 0000000..dac9477 --- /dev/null +++ b/extensions/ipset/ipset_ipportnethash.c @@ -0,0 +1,426 @@ +/* Copyright 2008 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem*, str* */ + +#include "ipset.h" + +#include "ip_set_ipportnethash.h" + +#define OPT_CREATE_HASHSIZE 0x01U +#define OPT_CREATE_PROBES 0x02U +#define OPT_CREATE_RESIZE 0x04U +#define OPT_CREATE_NETWORK 0x08U +#define OPT_CREATE_FROM 0x10U +#define OPT_CREATE_TO 0x20U + +/* Initialize the create. */ +static void +create_init(void *data) +{ + struct ip_set_req_ipportnethash_create *mydata = data; + + DP("create INIT"); + + /* Default create parameters */ + mydata->hashsize = 1024; + mydata->probes = 8; + mydata->resize = 50; +} + +/* Function which parses command options; returns true if it ate an option */ +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) +{ + struct ip_set_req_ipportnethash_create *mydata = data; + ip_set_ip_t value; + + DP("create_parse"); + + switch (c) { + case '1': + + if (string_to_number(optarg, 1, UINT_MAX - 1, &mydata->hashsize)) + exit_error(PARAMETER_PROBLEM, "Invalid hashsize `%s' specified", optarg); + + *flags |= OPT_CREATE_HASHSIZE; + + DP("--hashsize %u", mydata->hashsize); + + break; + + case '2': + + if (string_to_number(optarg, 1, 65535, &value)) + exit_error(PARAMETER_PROBLEM, "Invalid probes `%s' specified", optarg); + + mydata->probes = value; + *flags |= OPT_CREATE_PROBES; + + DP("--probes %u", mydata->probes); + + break; + + case '3': + + if (string_to_number(optarg, 0, 65535, &value)) + exit_error(PARAMETER_PROBLEM, "Invalid resize `%s' specified", optarg); + + mydata->resize = value; + *flags |= OPT_CREATE_RESIZE; + + DP("--resize %u", mydata->resize); + + break; + + case '4': + parse_ip(optarg, &mydata->from); + + *flags |= OPT_CREATE_FROM; + + DP("--from %x (%s)", mydata->from, + ip_tostring_numeric(mydata->from)); + + break; + + case '5': + parse_ip(optarg, &mydata->to); + + *flags |= OPT_CREATE_TO; + + DP("--to %x (%s)", mydata->to, + ip_tostring_numeric(mydata->to)); + + break; + + case '6': + parse_ipandmask(optarg, &mydata->from, &mydata->to); + + /* Make to the last of from + mask */ + if (mydata->to) + mydata->to = mydata->from | ~(mydata->to); + else { + mydata->from = 0x00000000; + mydata->to = 0xFFFFFFFF; + } + *flags |= OPT_CREATE_NETWORK; + + DP("--network from %x (%s)", + mydata->from, ip_tostring_numeric(mydata->from)); + DP("--network to %x (%s)", + mydata->to, ip_tostring_numeric(mydata->to)); + + break; + + default: + return 0; + } + + return 1; +} + +/* Final check; exit if not ok. */ +static void +create_final(void *data, unsigned int flags) +{ + struct ip_set_req_ipportnethash_create *mydata = data; + +#ifdef IPSET_DEBUG + DP("hashsize %u probes %u resize %u", + mydata->hashsize, mydata->probes, mydata->resize); +#endif + + if (flags & OPT_CREATE_NETWORK) { + /* --network */ + if ((flags & OPT_CREATE_FROM) || (flags & OPT_CREATE_TO)) + exit_error(PARAMETER_PROBLEM, + "Can't specify --from or --to with --network\n"); + } else if (flags & (OPT_CREATE_FROM | OPT_CREATE_TO)) { + /* --from --to */ + if (!(flags & OPT_CREATE_FROM) || !(flags & OPT_CREATE_TO)) + exit_error(PARAMETER_PROBLEM, + "Need to specify both --from and --to\n"); + } else { + exit_error(PARAMETER_PROBLEM, + "Need to specify --from and --to, or --network\n"); + + } + + DP("from : %x to: %x diff: %x", + mydata->from, mydata->to, + mydata->to - mydata->from); + + if (mydata->from > mydata->to) + exit_error(PARAMETER_PROBLEM, + "From can't be higher than to.\n"); + + if (mydata->to - mydata->from > MAX_RANGE) + exit_error(PARAMETER_PROBLEM, + "Range too large. Max is %d IPs in range\n", + MAX_RANGE+1); +} + +/* Create commandline options */ +static const struct option create_opts[] = { + {.name = "hashsize", .has_arg = required_argument, .val = '1'}, + {.name = "probes", .has_arg = required_argument, .val = '2'}, + {.name = "resize", .has_arg = required_argument, .val = '3'}, + {.name = "from", .has_arg = required_argument, .val = '4'}, + {.name = "to", .has_arg = required_argument, .val = '5'}, + {.name = "network", .has_arg = required_argument, .val = '6'}, + {NULL}, +}; + +/* Add, del, test parser */ +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) +{ + struct ip_set_req_ipportnethash *mydata = data; + char *saved = ipset_strdup(optarg); + char *ptr, *tmp = saved; + ip_set_ip_t cidr; + + DP("ipportnethash: %p %p", optarg, data); + + if (((ptr = strchr(tmp, ':')) || (ptr = strchr(tmp, '%'))) && ++warn_once == 1) + fprintf(stderr, "Warning: please use ',' separator token between ip,port,net.\n" + "Next release won't support old separator tokens.\n"); + + ptr = strsep(&tmp, ":%,"); + parse_ip(ptr, &mydata->ip); + if (!tmp) + exit_error(PARAMETER_PROBLEM, + "IP address, port and network address must be specified: ip,port,net"); + + ptr = strsep(&tmp, ":%,"); + parse_port(ptr, &mydata->port); + if (!tmp) + exit_error(PARAMETER_PROBLEM, + "IP address, port and network address must be specified: ip,port,net"); + + ptr = strsep(&tmp, "/"); + if (tmp == NULL) + if (cmd == CMD_TEST) + cidr = 32; + else + exit_error(PARAMETER_PROBLEM, + "Missing /cidr from `%s'", optarg); + else + if (string_to_number(tmp, 1, 31, &cidr)) + exit_error(PARAMETER_PROBLEM, + "Out of range cidr `%s' specified", optarg); + + mydata->cidr = cidr; + + parse_ip(ptr, &mydata->ip1); + ipset_free(saved); + return 1; +}; + +/* + * Print and save + */ + +static void +initheader(struct set *set, const void *data) +{ + const struct ip_set_req_ipportnethash_create *header = data; + struct ip_set_ipportnethash *map = set->settype->header; + + memset(map, 0, sizeof(struct ip_set_ipportnethash)); + map->hashsize = header->hashsize; + map->probes = header->probes; + map->resize = header->resize; + map->first_ip = header->from; + map->last_ip = header->to; +} + +static void +printheader(struct set *set, unsigned options) +{ + struct ip_set_ipportnethash *mysetdata = set->settype->header; + + printf(" from: %s", ip_tostring(mysetdata->first_ip, options)); + printf(" to: %s", ip_tostring(mysetdata->last_ip, options)); + printf(" hashsize: %u", mysetdata->hashsize); + printf(" probes: %u", mysetdata->probes); + printf(" resize: %u\n", mysetdata->resize); +} + +static char buf[20]; + +static char * +unpack_ip_tostring(ip_set_ip_t ip, unsigned options) +{ + int i, j = 3; + unsigned char a, b; + + ip = htonl(ip); + for (i = 3; i >= 0; i--) + if (((unsigned char *)&ip)[i] != 0) { + j = i; + break; + } + + a = ((unsigned char *)&ip)[j]; + if (a <= 128) { + a = (a - 1) * 2; + b = 7; + } else if (a <= 192) { + a = (a - 129) * 4; + b = 6; + } else if (a <= 224) { + a = (a - 193) * 8; + b = 5; + } else if (a <= 240) { + a = (a - 225) * 16; + b = 4; + } else if (a <= 248) { + a = (a - 241) * 32; + b = 3; + } else if (a <= 252) { + a = (a - 249) * 64; + b = 2; + } else if (a <= 254) { + a = (a - 253) * 128; + b = 1; + } else { + a = b = 0; + } + ((unsigned char *)&ip)[j] = a; + b += j * 8; + + sprintf(buf, "%u.%u.%u.%u/%u", + ((unsigned char *)&ip)[0], + ((unsigned char *)&ip)[1], + ((unsigned char *)&ip)[2], + ((unsigned char *)&ip)[3], + b); + + DP("%s %s", ip_tostring(ntohl(ip), options), buf); + return buf; +} + +static void +printips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_ipportnethash *mysetdata = set->settype->header; + size_t offset = 0; + struct ipportip *ipptr; + ip_set_ip_t ip; + uint16_t port; + + while (offset < len) { + ipptr = data + offset; + if (ipptr->ip || ipptr->ip1) { + ip = (ipptr->ip>>16) + mysetdata->first_ip; + port = (uint16_t) ipptr->ip; + printf("%s,%s,", + ip_tostring(ip, options), + port_tostring(port, options)); + printf("%s\n", + unpack_ip_tostring(ipptr->ip1, options)); + } + offset += sizeof(struct ipportip); + } +} + +static void +saveheader(struct set *set, unsigned options) +{ + struct ip_set_ipportnethash *mysetdata = set->settype->header; + + printf("-N %s %s --from %s", + set->name, set->settype->typename, + ip_tostring(mysetdata->first_ip, options)); + printf(" --to %s", + ip_tostring(mysetdata->last_ip, options)); + printf(" --hashsize %u --probes %u --resize %u\n", + mysetdata->hashsize, mysetdata->probes, mysetdata->resize); +} + +/* Print save for an IP */ +static void +saveips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_ipportnethash *mysetdata = set->settype->header; + size_t offset = 0; + struct ipportip *ipptr; + ip_set_ip_t ip; + uint16_t port; + + while (offset < len) { + ipptr = data + offset; + if (ipptr) { + ip = (ipptr->ip>>16) + mysetdata->first_ip; + port = (uint16_t) ipptr->ip; + printf("-A %s %s,%s,", set->name, + ip_tostring(ip, options), + port_tostring(port, options)); + printf("%s\n", + unpack_ip_tostring(ipptr->ip, options)); + } + offset += sizeof(struct ipportip); + } +} + +static void usage(void) +{ + printf + ("-N set ipportnethash --from IP --to IP\n" + " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" + "-N set ipportnethash --network IP/mask\n" + " [--hashsize hashsize] [--probes probes ] [--resize resize]\n" + "-A set IP,port,IP/net\n" + "-D set IP,port,IP/net\n" + "-T set IP,port,IP[/net]\n"); +} + +static struct settype settype_ipportnethash = { + .typename = SETTYPE_NAME, + .protocol_version = IP_SET_PROTOCOL_VERSION, + + /* Create */ + .create_size = sizeof(struct ip_set_req_ipportnethash_create), + .create_init = &create_init, + .create_parse = &create_parse, + .create_final = &create_final, + .create_opts = create_opts, + + /* Add/del/test */ + .adt_size = sizeof(struct ip_set_req_ipportnethash), + .adt_parser = &adt_parser, + + /* Printing */ + .header_size = sizeof(struct ip_set_ipportnethash), + .initheader = &initheader, + .printheader = &printheader, + .printips = &printips, /* We only have the unsorted version */ + .printips_sorted = &printips, + .saveheader = &saveheader, + .saveips = &saveips, + + .usage = &usage, +}; + +void _init(void) +{ + settype_register(&settype_ipportnethash); + +} diff --git a/extensions/ipset/ipset_iptree.c b/extensions/ipset/ipset_iptree.c index 565c2c4..b78574d 100644 --- a/extensions/ipset/ipset_iptree.c +++ b/extensions/ipset/ipset_iptree.c @@ -15,36 +15,33 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -#include -#include +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem* */ + +#include "ipset.h" #include "ip_set_iptree.h" -#include "ipset.h" #define BUFLEN 30; #define OPT_CREATE_TIMEOUT 0x01U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { - struct ip_set_req_iptree_create *mydata = - (struct ip_set_req_iptree_create *) data; + struct ip_set_req_iptree_create *mydata = data; DP("create INIT"); mydata->timeout = 0; } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_iptree_create *mydata = - (struct ip_set_req_iptree_create *) data; + struct ip_set_req_iptree_create *mydata = data; DP("create_parse"); @@ -65,27 +62,32 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { } /* Create commandline options */ static const struct option create_opts[] = { - {"timeout", 1, 0, '1'}, + {.name = "timeout", .has_arg = required_argument, .val = '1'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_iptree *mydata = - (struct ip_set_req_iptree *) data; - char *saved = ipset_strdup(arg); + struct ip_set_req_iptree *mydata = data; + char *saved = ipset_strdup(optarg); char *ptr, *tmp = saved; - DP("iptree: %p %p", arg, data); + DP("iptree: %p %p", optarg, data); - ptr = strsep(&tmp, ":%"); + if (((ptr = strchr(tmp, ':')) || (ptr = strchr(tmp, '%'))) && ++warn_once == 1) + fprintf(stderr, "Warning: please use ',' separator token between ip,timeout.\n" + "Next release won't support old separator tokens.\n"); + + ptr = strsep(&tmp, ":%,"); parse_ip(ptr, &mydata->ip); if (tmp) @@ -93,7 +95,7 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) else mydata->timeout = 0; - free(saved); + ipset_free(saved); return 1; } @@ -101,38 +103,36 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_iptree_create *header = - (struct ip_set_req_iptree_create *) data; - struct ip_set_iptree *map = - (struct ip_set_iptree *) set->settype->header; + const struct ip_set_req_iptree_create *header = data; + struct ip_set_iptree *map = set->settype->header; map->timeout = header->timeout; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_iptree *mysetdata = - (struct ip_set_iptree *) set->settype->header; + struct ip_set_iptree *mysetdata = set->settype->header; if (mysetdata->timeout) printf(" timeout: %u", mysetdata->timeout); printf("\n"); } -static void printips_sorted(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips_sorted(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_iptree *mysetdata = - (struct ip_set_iptree *) set->settype->header; + struct ip_set_iptree *mysetdata = set->settype->header; struct ip_set_req_iptree *req; size_t offset = 0; while (len >= offset + sizeof(struct ip_set_req_iptree)) { req = (struct ip_set_req_iptree *)(data + offset); if (mysetdata->timeout) - printf("%s:%u\n", ip_tostring(req->ip, options), + printf("%s,%u\n", ip_tostring(req->ip, options), req->timeout); else printf("%s\n", ip_tostring(req->ip, options)); @@ -140,10 +140,10 @@ static void printips_sorted(struct set *set, void *data, size_t len, } } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_iptree *mysetdata = - (struct ip_set_iptree *) set->settype->header; + struct ip_set_iptree *mysetdata = set->settype->header; if (mysetdata->timeout) printf("-N %s %s --timeout %u\n", @@ -154,11 +154,10 @@ static void saveheader(struct set *set, unsigned int options) set->name, set->settype->typename); } -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_iptree *mysetdata = - (struct ip_set_iptree *) set->settype->header; + struct ip_set_iptree *mysetdata = set->settype->header; struct ip_set_req_iptree *req; size_t offset = 0; @@ -167,7 +166,7 @@ static void saveips(struct set *set, void *data, size_t len, while (len >= offset + sizeof(struct ip_set_req_iptree)) { req = (struct ip_set_req_iptree *)(data + offset); if (mysetdata->timeout) - printf("-A %s %s:%u\n", + printf("-A %s %s,%u\n", set->name, ip_tostring(req->ip, options), req->timeout); @@ -183,7 +182,7 @@ static void usage(void) { printf ("-N set iptree [--timeout value]\n" - "-A set IP[:timeout]\n" + "-A set IP[,timeout]\n" "-D set IP\n" "-T set IP\n"); } diff --git a/extensions/ipset/ipset_iptreemap.c b/extensions/ipset/ipset_iptreemap.c index 9e3d072..361e88b 100644 --- a/extensions/ipset/ipset_iptreemap.c +++ b/extensions/ipset/ipset_iptreemap.c @@ -15,17 +15,14 @@ * Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -#include - -#include "ip_set_iptreemap.h" +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem* */ #include "ipset.h" +#include "ip_set_iptreemap.h" + #define OPT_CREATE_GC 0x1 static void @@ -61,33 +58,38 @@ create_final(void *data, unsigned int flags) } static const struct option create_opts[] = { - {"gc", 1, 0, 'g'}, + {.name = "gc", .has_arg = required_argument, .val = 'g'}, {NULL}, }; static ip_set_ip_t -adt_parser(unsigned int cmd, const char *arg, void *data) +adt_parser(unsigned int cmd, const char *optarg, void *data) { struct ip_set_req_iptreemap *mydata = data; ip_set_ip_t mask; - char *saved = ipset_strdup(arg); + char *saved = ipset_strdup(optarg); char *ptr, *tmp = saved; if (strchr(tmp, '/')) { - parse_ipandmask(tmp, &mydata->start, &mask); - mydata->end = mydata->start | ~mask; + parse_ipandmask(tmp, &mydata->ip, &mask); + mydata->end = mydata->ip | ~mask; } else { - ptr = strsep(&tmp, ":"); - parse_ip(ptr, &mydata->start); + if ((ptr = strchr(tmp, ':')) != NULL && ++warn_once == 1) + fprintf(stderr, "Warning: please use '-' separator token between IP range.\n" + "Next release won't support old separator token.\n"); + ptr = strsep(&tmp, "-:"); + parse_ip(ptr, &mydata->ip); if (tmp) { parse_ip(tmp, &mydata->end); } else { - mydata->end = mydata->start; + mydata->end = mydata->ip; } } + ipset_free(saved); + return 1; } @@ -120,9 +122,9 @@ printips_sorted(struct set *set, void *data, size_t len, unsigned int options) while (len >= offset + sizeof(struct ip_set_req_iptreemap)) { req = data + offset; - printf("%s", ip_tostring(req->start, options)); - if (req->start != req->end) - printf(":%s", ip_tostring(req->end, options)); + printf("%s", ip_tostring(req->ip, options)); + if (req->ip != req->end) + printf("-%s", ip_tostring(req->end, options)); printf("\n"); offset += sizeof(struct ip_set_req_iptreemap); @@ -151,10 +153,10 @@ saveips(struct set *set, void *data, size_t len, unsigned int options) while (len >= offset + sizeof(struct ip_set_req_iptreemap)) { req = data + offset; - printf("-A %s %s", set->name, ip_tostring(req->start, options)); + printf("-A %s %s", set->name, ip_tostring(req->ip, options)); - if (req->start != req->end) - printf(":%s", ip_tostring(req->end, options)); + if (req->ip != req->end) + printf("-%s", ip_tostring(req->end, options)); printf("\n"); diff --git a/extensions/ipset/ipset_macipmap.c b/extensions/ipset/ipset_macipmap.c index 3c2f316..021a02e 100644 --- a/extensions/ipset/ipset_macipmap.c +++ b/extensions/ipset/ipset_macipmap.c @@ -18,16 +18,14 @@ */ -#include -#include -#include -#include -#include -#include -#include +#include /* *printf */ +#include /* mem* */ +#include /* str* */ +#include /* ETH_ALEN */ + +#include "ipset.h" #include "ip_set_macipmap.h" -#include "ipset.h" #define BUFLEN 30; @@ -40,17 +38,18 @@ #define OPT_ADDDEL_MAC 0x02U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { DP("create INIT"); /* Nothing */ } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_macipmap_create *mydata = - (struct ip_set_req_macipmap_create *) data; + struct ip_set_req_macipmap_create *mydata = data; DP("create_parse"); @@ -107,10 +106,10 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { - struct ip_set_req_macipmap_create *mydata = - (struct ip_set_req_macipmap_create *) data; + struct ip_set_req_macipmap_create *mydata = data; if (flags == 0) exit_error(PARAMETER_PROBLEM, @@ -146,14 +145,15 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"from", 1, 0, '1'}, - {"to", 1, 0, '2'}, - {"network", 1, 0, '3'}, - {"matchunset", 0, 0, '4'}, + {.name = "from", .has_arg = required_argument, .val = '1'}, + {.name = "to", .has_arg = required_argument, .val = '2'}, + {.name = "network", .has_arg = required_argument, .val = '3'}, + {.name = "matchunset", .has_arg = no_argument, .val = '4'}, {NULL}, }; -static void parse_mac(const char *mac, unsigned char *ethernet) +static void +parse_mac(const char *mac, unsigned char *ethernet) { unsigned int i = 0; @@ -175,16 +175,23 @@ static void parse_mac(const char *mac, unsigned char *ethernet) } /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_macipmap *mydata = - (struct ip_set_req_macipmap *) data; - char *saved = ipset_strdup(arg); + struct ip_set_req_macipmap *mydata = data; + char *saved = ipset_strdup(optarg); char *ptr, *tmp = saved; - DP("macipmap: %p %p", arg, data); + DP("macipmap: %p %p", optarg, data); - ptr = strsep(&tmp, ":%"); + ptr = strsep(&tmp, ","); + if (!tmp) { + tmp = saved; + ptr = strsep(&tmp, ":%"); + if (tmp && ++warn_once == 1) + fprintf(stderr, "Warning: please use ',' separator token between ip,mac.\n" + "Next release won't support old separator tokens.\n"); + } parse_ip(ptr, &mydata->ip); if (tmp) @@ -200,12 +207,11 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_macipmap_create *header = - (struct ip_set_req_macipmap_create *) data; - struct ip_set_macipmap *map = - (struct ip_set_macipmap *) set->settype->header; + const struct ip_set_req_macipmap_create *header = data; + struct ip_set_macipmap *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_macipmap)); map->first_ip = header->from; @@ -213,10 +219,10 @@ static void initheader(struct set *set, const void *data) map->flags = header->flags; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_macipmap *mysetdata = - (struct ip_set_macipmap *) set->settype->header; + struct ip_set_macipmap *mysetdata = set->settype->header; printf(" from: %s", ip_tostring(mysetdata->first_ip, options)); printf(" to: %s", ip_tostring(mysetdata->last_ip, options)); @@ -226,7 +232,8 @@ static void printheader(struct set *set, unsigned int options) printf("\n"); } -static void print_mac(unsigned char macaddress[ETH_ALEN]) +static void +print_mac(unsigned char macaddress[ETH_ALEN]) { unsigned int i; @@ -235,19 +242,17 @@ static void print_mac(unsigned char macaddress[ETH_ALEN]) printf(":%02X", macaddress[i]); } -static void printips_sorted(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips_sorted(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_macipmap *mysetdata = - (struct ip_set_macipmap *) set->settype->header; - struct ip_set_macip *table = - (struct ip_set_macip *) data; + struct ip_set_macipmap *mysetdata = set->settype->header; + struct ip_set_macip *table = data; u_int32_t addr = mysetdata->first_ip; while (addr <= mysetdata->last_ip) { if (test_bit(IPSET_MACIP_ISSET, (void *)&table[addr - mysetdata->first_ip].flags)) { - printf("%s:", ip_tostring(addr, options)); + printf("%s,", ip_tostring(addr, options)); print_mac(table[addr - mysetdata->first_ip]. ethernet); printf("\n"); @@ -256,10 +261,10 @@ static void printips_sorted(struct set *set, void *data, size_t len, } } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_macipmap *mysetdata = - (struct ip_set_macipmap *) set->settype->header; + struct ip_set_macipmap *mysetdata = set->settype->header; printf("-N %s %s --from %s", set->name, set->settype->typename, @@ -271,19 +276,17 @@ static void saveheader(struct set *set, unsigned int options) printf("\n"); } -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_macipmap *mysetdata = - (struct ip_set_macipmap *) set->settype->header; - struct ip_set_macip *table = - (struct ip_set_macip *) data; + struct ip_set_macipmap *mysetdata = set->settype->header; + struct ip_set_macip *table = data; u_int32_t addr = mysetdata->first_ip; while (addr <= mysetdata->last_ip) { if (test_bit(IPSET_MACIP_ISSET, (void *)&table[addr - mysetdata->first_ip].flags)) { - printf("-A %s %s:", + printf("-A %s %s,", set->name, ip_tostring(addr, options)); print_mac(table[addr - mysetdata->first_ip]. ethernet); @@ -298,9 +301,9 @@ static void usage(void) printf ("-N set macipmap --from IP --to IP [--matchunset]\n" "-N set macipmap --network IP/mask [--matchunset]\n" - "-A set IP:MAC\n" - "-D set IP[:MAC]\n" - "-T set IP[:MAC]\n"); + "-A set IP[,MAC]\n" + "-D set IP[,MAC]\n" + "-T set IP[,MAC]\n"); } static struct settype settype_macipmap = { diff --git a/extensions/ipset/ipset_nethash.c b/extensions/ipset/ipset_nethash.c index efa7508..6e38576 100644 --- a/extensions/ipset/ipset_nethash.c +++ b/extensions/ipset/ipset_nethash.c @@ -15,24 +15,14 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "ip_set_nethash.h" -#include "ip_set_jhash.h" +#include /* UINT_MAX */ +#include /* *printf */ +#include /* mem*, str* */ #include "ipset.h" +#include "ip_set_nethash.h" + #define BUFLEN 30; #define OPT_CREATE_HASHSIZE 0x01U @@ -40,10 +30,10 @@ #define OPT_CREATE_RESIZE 0x04U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { - struct ip_set_req_nethash_create *mydata = - (struct ip_set_req_nethash_create *) data; + struct ip_set_req_nethash_create *mydata = data; DP("create INIT"); @@ -54,10 +44,10 @@ static void create_init(void *data) } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_nethash_create *mydata = - (struct ip_set_req_nethash_create *) data; + struct ip_set_req_nethash_create *mydata = data; ip_set_ip_t value; DP("create_parse"); @@ -106,11 +96,11 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { #ifdef IPSET_DEBUG - struct ip_set_req_nethash_create *mydata = - (struct ip_set_req_nethash_create *) data; + struct ip_set_req_nethash_create *mydata = data; DP("hashsize %u probes %u resize %u", mydata->hashsize, mydata->probes, mydata->resize); @@ -119,18 +109,18 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"hashsize", 1, 0, '1'}, - {"probes", 1, 0, '2'}, - {"resize", 1, 0, '3'}, + {.name = "hashsize", .has_arg = required_argument, .val = '1'}, + {.name = "probes", .has_arg = required_argument, .val = '2'}, + {.name = "resize", .has_arg = required_argument, .val = '3'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_nethash *mydata = - (struct ip_set_req_nethash *) data; - char *saved = ipset_strdup(arg); + struct ip_set_req_nethash *mydata = data; + char *saved = ipset_strdup(optarg); char *ptr, *tmp = saved; ip_set_ip_t cidr; @@ -141,18 +131,18 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) cidr = 32; else exit_error(PARAMETER_PROBLEM, - "Missing cidr from `%s'", arg); + "Missing cidr from `%s'", optarg); } else if (string_to_number(tmp, 1, 31, &cidr)) exit_error(PARAMETER_PROBLEM, - "Out of range cidr `%s' specified", arg); + "Out of range cidr `%s' specified", optarg); mydata->cidr = cidr; parse_ip(ptr, &mydata->ip); if (!mydata->ip) exit_error(PARAMETER_PROBLEM, "Zero valued IP address `%s' specified", ptr); - free(saved); + ipset_free(saved); return mydata->ip; }; @@ -161,12 +151,11 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_nethash_create *header = - (struct ip_set_req_nethash_create *) data; - struct ip_set_nethash *map = - (struct ip_set_nethash *) set->settype->header; + const struct ip_set_req_nethash_create *header = data; + struct ip_set_nethash *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_nethash)); map->hashsize = header->hashsize; @@ -174,10 +163,10 @@ static void initheader(struct set *set, const void *data) map->resize = header->resize; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_nethash *mysetdata = - (struct ip_set_nethash *) set->settype->header; + struct ip_set_nethash *mysetdata = set->settype->header; printf(" hashsize: %u", mysetdata->hashsize); printf(" probes: %u", mysetdata->probes); @@ -186,7 +175,8 @@ static void printheader(struct set *set, unsigned int options) static char buf[20]; -static char * unpack_ip_tostring(ip_set_ip_t ip, unsigned options) +static char * +unpack_ip_tostring(ip_set_ip_t ip, unsigned options) { int i, j = 3; unsigned char a, b; @@ -237,8 +227,8 @@ static char * unpack_ip_tostring(ip_set_ip_t ip, unsigned options) return buf; } -static void printips(struct set *set, void *data, size_t len, - unsigned int options) +static void +printips(struct set *set, void *data, size_t len, unsigned options) { size_t offset = 0; ip_set_ip_t *ip; @@ -251,10 +241,10 @@ static void printips(struct set *set, void *data, size_t len, } } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_nethash *mysetdata = - (struct ip_set_nethash *) set->settype->header; + struct ip_set_nethash *mysetdata = set->settype->header; printf("-N %s %s --hashsize %u --probes %u --resize %u\n", set->name, set->settype->typename, @@ -262,8 +252,8 @@ static void saveheader(struct set *set, unsigned int options) } /* Print save for an IP */ -static void saveips(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveips(struct set *set, void *data, size_t len, unsigned options) { size_t offset = 0; ip_set_ip_t *ip; @@ -277,14 +267,16 @@ static void saveips(struct set *set, void *data, size_t len, } } -static char * net_tostring(struct set *set, ip_set_ip_t ip, unsigned options) +static char * +net_tostring(struct set *set, ip_set_ip_t ip, unsigned options) { return unpack_ip_tostring(ip, options); } -static void parse_net(const char *str, ip_set_ip_t *ip) +static void +parse_net(const char *str, ip_set_ip_t *ip) { - char *saved = strdup(str); + char *saved = ipset_strdup(str); char *ptr, *tmp = saved; ip_set_ip_t cidr; @@ -299,9 +291,9 @@ static void parse_net(const char *str, ip_set_ip_t *ip) "Out of range cidr `%s' specified", str); parse_ip(ptr, ip); - free(saved); + ipset_free(saved); - *ip = pack(*ip, cidr); + *ip = pack_ip_cidr(*ip, cidr); } static void usage(void) diff --git a/extensions/ipset/ipset_portmap.c b/extensions/ipset/ipset_portmap.c index 5928666..3aa6414 100644 --- a/extensions/ipset/ipset_portmap.c +++ b/extensions/ipset/ipset_portmap.c @@ -16,15 +16,12 @@ */ -#include -#include -#include -#include -#include +#include /* *printf */ +#include /* mem* */ -#include "ip_set_portmap.h" #include "ipset.h" +#include "ip_set_portmap.h" #define BUFLEN 30; @@ -34,17 +31,18 @@ #define OPT_ADDDEL_PORT 0x01U /* Initialize the create. */ -static void create_init(void *data) +static void +create_init(void *data) { DP("create INIT"); /* Nothing */ } /* Function which parses command options; returns true if it ate an option */ -static int create_parse(int c, char *argv[], void *data, unsigned int *flags) +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) { - struct ip_set_req_portmap_create *mydata = - (struct ip_set_req_portmap_create *) data; + struct ip_set_req_portmap_create *mydata = data; DP("create_parse"); @@ -77,10 +75,10 @@ static int create_parse(int c, char *argv[], void *data, unsigned int *flags) } /* Final check; exit if not ok. */ -static void create_final(void *data, unsigned int flags) +static void +create_final(void *data, unsigned int flags) { - struct ip_set_req_portmap_create *mydata = - (struct ip_set_req_portmap_create *) data; + struct ip_set_req_portmap_create *mydata = data; if (flags == 0) { exit_error(PARAMETER_PROBLEM, @@ -108,19 +106,19 @@ static void create_final(void *data, unsigned int flags) /* Create commandline options */ static const struct option create_opts[] = { - {"from", 1, 0, '1'}, - {"to", 1, 0, '2'}, + {.name = "from", .has_arg = required_argument, .val = '1'}, + {.name = "to", .has_arg = required_argument, .val = '2'}, {NULL}, }; /* Add, del, test parser */ -static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) { - struct ip_set_req_portmap *mydata = - (struct ip_set_req_portmap *) data; + struct ip_set_req_portmap *mydata = data; - parse_port(arg, &mydata->port); - DP("%s", port_tostring(mydata->port, 0)); + parse_port(optarg, &mydata->ip); + DP("%s", port_tostring(mydata->ip, 0)); return 1; } @@ -129,70 +127,67 @@ static ip_set_ip_t adt_parser(unsigned int cmd, const char *arg, void *data) * Print and save */ -static void initheader(struct set *set, const void *data) +static void +initheader(struct set *set, const void *data) { - struct ip_set_req_portmap_create *header = - (struct ip_set_req_portmap_create *) data; - struct ip_set_portmap *map = - (struct ip_set_portmap *) set->settype->header; + const struct ip_set_req_portmap_create *header = data; + struct ip_set_portmap *map = set->settype->header; memset(map, 0, sizeof(struct ip_set_portmap)); - map->first_port = header->from; - map->last_port = header->to; + map->first_ip = header->from; + map->last_ip = header->to; } -static void printheader(struct set *set, unsigned int options) +static void +printheader(struct set *set, unsigned options) { - struct ip_set_portmap *mysetdata = - (struct ip_set_portmap *) set->settype->header; + struct ip_set_portmap *mysetdata = set->settype->header; - printf(" from: %s", port_tostring(mysetdata->first_port, options)); - printf(" to: %s\n", port_tostring(mysetdata->last_port, options)); + printf(" from: %s", port_tostring(mysetdata->first_ip, options)); + printf(" to: %s\n", port_tostring(mysetdata->last_ip, options)); } -static void printports_sorted(struct set *set, void *data, size_t len, - unsigned int options) +static void +printports_sorted(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_portmap *mysetdata = - (struct ip_set_portmap *) set->settype->header; - u_int32_t addr = mysetdata->first_port; + struct ip_set_portmap *mysetdata = set->settype->header; + u_int32_t addr = mysetdata->first_ip; - DP("%u -- %u", mysetdata->first_port, mysetdata->last_port); - while (addr <= mysetdata->last_port) { - if (test_bit(addr - mysetdata->first_port, data)) + DP("%u -- %u", mysetdata->first_ip, mysetdata->last_ip); + while (addr <= mysetdata->last_ip) { + if (test_bit(addr - mysetdata->first_ip, data)) printf("%s\n", port_tostring(addr, options)); addr++; } } -static char *binding_port_tostring(struct set *set, ip_set_ip_t ip, - unsigned int options) +static char * +binding_port_tostring(struct set *set, ip_set_ip_t ip, unsigned options) { return port_tostring(ip, options); } -static void saveheader(struct set *set, unsigned int options) +static void +saveheader(struct set *set, unsigned options) { - struct ip_set_portmap *mysetdata = - (struct ip_set_portmap *) set->settype->header; + struct ip_set_portmap *mysetdata = set->settype->header; printf("-N %s %s --from %s", set->name, set->settype->typename, - port_tostring(mysetdata->first_port, options)); + port_tostring(mysetdata->first_ip, options)); printf(" --to %s\n", - port_tostring(mysetdata->last_port, options)); + port_tostring(mysetdata->last_ip, options)); } -static void saveports(struct set *set, void *data, size_t len, - unsigned int options) +static void +saveports(struct set *set, void *data, size_t len, unsigned options) { - struct ip_set_portmap *mysetdata = - (struct ip_set_portmap *) set->settype->header; - u_int32_t addr = mysetdata->first_port; + struct ip_set_portmap *mysetdata = set->settype->header; + u_int32_t addr = mysetdata->first_ip; - while (addr <= mysetdata->last_port) { - if (test_bit(addr - mysetdata->first_port, data)) + while (addr <= mysetdata->last_ip) { + if (test_bit(addr - mysetdata->first_ip, data)) printf("-A %s %s\n", set->name, port_tostring(addr, options)); diff --git a/extensions/ipset/ipset_setlist.c b/extensions/ipset/ipset_setlist.c new file mode 100644 index 0000000..4c574a0 --- /dev/null +++ b/extensions/ipset/ipset_setlist.c @@ -0,0 +1,219 @@ +/* Copyright 2008 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include + +#include "ip_set_setlist.h" +#include "ipset.h" + +/* Initialize the create. */ +static void +create_init(void *data) +{ + struct ip_set_req_setlist_create *mydata = data; + + mydata->size = 8; +} + +/* Function which parses command options; returns true if it ate an option */ +static int +create_parse(int c, char *argv[], void *data, unsigned *flags) +{ + struct ip_set_req_setlist_create *mydata = data; + unsigned int size; + + switch (c) { + case '1': + if (string_to_number(optarg, 1, 255, &size)) + exit_error(PARAMETER_PROBLEM, + "Invalid size '%s specified: must be " + "between 1-255", optarg); + mydata->size = size; + break; + default: + return 0; + } + return 1; +} + +/* Final check; exit if not ok. */ +static void +create_final(void *data, unsigned int flags) +{ +} + +/* Create commandline options */ +static const struct option create_opts[] = { + {.name = "size", .has_arg = required_argument, .val = '1'}, + {NULL}, +}; + +static void check_setname(const char *name) +{ + if (strlen(name) > IP_SET_MAXNAMELEN - 1) + exit_error(PARAMETER_PROBLEM, + "Setname %s is longer than %d characters.", + name, IP_SET_MAXNAMELEN - 1); +} + +/* Add, del, test parser */ +static ip_set_ip_t +adt_parser(unsigned cmd, const char *optarg, void *data) +{ + struct ip_set_req_setlist *mydata = data; + char *saved = ipset_strdup(optarg); + char *ptr, *tmp = saved; + + DP("setlist: %p %p", optarg, data); + + ptr = strsep(&tmp, ","); + check_setname(ptr); + strcpy(mydata->name, ptr); + + if (!tmp) { + mydata->before = 0; + mydata->ref[0] = '\0'; + return 1; + } + + ptr = strsep(&tmp, ","); + + if (tmp == NULL || !(strcmp(ptr, "before") == 0 || strcmp(ptr, "after") == 0)) + exit_error(PARAMETER_PROBLEM, + "Syntax error, you must specify elements as setname,[before|after],setname"); + + check_setname(tmp); + strcpy(mydata->ref, tmp); + mydata->before = !strcmp(ptr, "before"); + + free(saved); + + return 1; +} + +/* + * Print and save + */ + +static void +initheader(struct set *set, const void *data) +{ + const struct ip_set_req_setlist_create *header = data; + struct ip_set_setlist *map = set->settype->header; + + memset(map, 0, sizeof(struct ip_set_setlist)); + map->size = header->size; +} + +static void +printheader(struct set *set, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + + printf(" size: %u\n", mysetdata->size); +} + +static void +printips_sorted(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + int i; + ip_set_id_t id; + struct set *elem; + + for (i = 0; i < mysetdata->size; i++ ) { + id = *((ip_set_id_t *)data + i); + if (id == IP_SET_INVALID_ID) + return; + elem = set_find_byid(id); + printf("%s\n", elem->name); + } +} + +static void +saveheader(struct set *set, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + + printf("-N %s %s --size %u\n", + set->name, set->settype->typename, + mysetdata->size); +} + +static void +saveips(struct set *set, void *data, size_t len, unsigned options) +{ + struct ip_set_setlist *mysetdata = set->settype->header; + int i; + ip_set_id_t id; + struct set *elem; + + for (i = 0; i < mysetdata->size; i++ ) { + id = *((ip_set_id_t *)data + i); + if (id == IP_SET_INVALID_ID) + return; + elem = set_find_byid(id); + printf("-A %s %s\n", set->name, elem->name); + } +} + +static void usage(void) +{ + printf + ("-N set setlist --size size\n" + "-A set setname[,before|after,setname]\n" + "-D set setname\n" + "-T set setname\n"); +} + +static struct settype settype_setlist = { + .typename = SETTYPE_NAME, + .protocol_version = IP_SET_PROTOCOL_VERSION, + + /* Create */ + .create_size = sizeof(struct ip_set_req_setlist_create), + .create_init = &create_init, + .create_parse = &create_parse, + .create_final = &create_final, + .create_opts = create_opts, + + /* Add/del/test */ + .adt_size = sizeof(struct ip_set_req_setlist), + .adt_parser = &adt_parser, + + /* Printing */ + .header_size = sizeof(struct ip_set_setlist), + .initheader = &initheader, + .printheader = &printheader, + .printips = &printips_sorted, /* We only have sorted version */ + .printips_sorted = &printips_sorted, + .saveheader = &saveheader, + .saveips = &saveips, + + .usage = &usage, +}; + +void _init(void) +{ + settype_register(&settype_setlist); + +} diff --git a/extensions/ipset/ipt_SET.c b/extensions/ipset/ipt_SET.c index 637d32f..0b5a7b4 100644 --- a/extensions/ipset/ipt_SET.c +++ b/extensions/ipset/ipt_SET.c @@ -10,37 +10,59 @@ /* ipt_SET.c - netfilter target to manipulate IP sets */ -#include -#include -#include #include -#include -#include -#include -#include +#include +#include #include -#include -#include + #include +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) #include +#define xt_register_target ipt_register_target +#define xt_unregister_target ipt_unregister_target +#define xt_target ipt_target +#define XT_CONTINUE IPT_CONTINUE +#else +#include +#endif #include "ipt_set.h" static unsigned int -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) -target(struct sk_buff *skb, -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +target(struct sk_buff **pskb, + unsigned int hooknum, + const struct net_device *in, + const struct net_device *out, + const void *targinfo, + void *userinfo) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) target(struct sk_buff **pskb, -#endif const struct net_device *in, const struct net_device *out, unsigned int hooknum, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_target *target, -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) const void *targinfo, void *userinfo) -#else +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +target(struct sk_buff **pskb, + const struct net_device *in, + const struct net_device *out, + unsigned int hooknum, + const struct xt_target *target, + const void *targinfo, + void *userinfo) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) +target(struct sk_buff **pskb, + const struct net_device *in, + const struct net_device *out, + unsigned int hooknum, + const struct xt_target *target, + const void *targinfo) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24) */ +target(struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + unsigned int hooknum, + const struct xt_target *target, const void *targinfo) #endif { @@ -59,33 +81,51 @@ target(struct sk_buff **pskb, skb, info->del_set.flags); - return IPT_CONTINUE; + return XT_CONTINUE; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) -static bool -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) static int -#endif checkentry(const char *tablename, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) - const void *e, -#else const struct ipt_entry *e, -#endif -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_target *target, -#endif void *targinfo, -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) unsigned int targinfosize, -#endif unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static int +checkentry(const char *tablename, + const void *e, + void *targinfo, + unsigned int targinfosize, + unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +static int +checkentry(const char *tablename, + const void *e, + const struct xt_target *target, + void *targinfo, + unsigned int targinfosize, + unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) +static int +checkentry(const char *tablename, + const void *e, + const struct xt_target *target, + void *targinfo, + unsigned int hook_mask) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) */ +static bool +checkentry(const char *tablename, + const void *e, + const struct xt_target *target, + void *targinfo, + unsigned int hook_mask) +#endif { struct ipt_set_info_target *info = targinfo; ip_set_id_t index; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) if (targinfosize != IPT_ALIGN(sizeof(*info))) { DP("bad target info size %u", targinfosize); return 0; @@ -118,19 +158,21 @@ checkentry(const char *tablename, return 1; } -static void destroy( -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_target *target, -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) - void *targetinfo, unsigned int targetsize) -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static void destroy(void *targetinfo, + unsigned int targetsize) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +static void destroy(const struct xt_target *target, + void *targetinfo, + unsigned int targetsize) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19) */ +static void destroy(const struct xt_target *target, void *targetinfo) #endif { struct ipt_set_info_target *info = targetinfo; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) if (targetsize != IPT_ALIGN(sizeof(struct ipt_set_info_target))) { ip_set_printk("invalid targetsize %d", targetsize); return; @@ -142,37 +184,38 @@ static void destroy( ip_set_put(info->del_set.index); } -static struct ipt_target SET_target = { +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static struct xt_target SET_target = { .name = "SET", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) - .family = AF_INET, -#endif .target = target, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - .targetsize = sizeof(struct ipt_set_info_target), -#endif .checkentry = checkentry, .destroy = destroy, .me = THIS_MODULE }; +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) */ +static struct xt_target SET_target = { + .name = "SET", + .family = AF_INET, + .target = target, + .targetsize = sizeof(struct ipt_set_info_target), + .checkentry = checkentry, + .destroy = destroy, + .me = THIS_MODULE +}; +#endif MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("iptables IP set target module"); -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) -#define ipt_register_target xt_register_target -#define ipt_unregister_target xt_unregister_target -#endif - static int __init ipt_SET_init(void) { - return ipt_register_target(&SET_target); + return xt_register_target(&SET_target); } static void __exit ipt_SET_fini(void) { - ipt_unregister_target(&SET_target); + xt_unregister_target(&SET_target); } module_init(ipt_SET_init); diff --git a/extensions/ipset/ipt_set.c b/extensions/ipset/ipt_set.c index 35dfb59..2427005 100644 --- a/extensions/ipset/ipt_set.c +++ b/extensions/ipset/ipt_set.c @@ -15,7 +15,14 @@ #include #include +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) #include +#define xt_register_match ipt_register_match +#define xt_unregister_match ipt_unregister_match +#define xt_match ipt_match +#else +#include +#endif #include "ip_set.h" #include "ipt_set.h" @@ -29,24 +36,53 @@ match_set(const struct ipt_set_info *info, return inv; } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) -static bool -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) static int -#endif match(const struct sk_buff *skb, const struct net_device *in, const struct net_device *out, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_match *match, -#endif const void *matchinfo, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) - int offset, unsigned int protoff, bool *hotdrop) -#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) - int offset, unsigned int protoff, int *hotdrop) -#else - int offset, int *hotdrop) + int offset, + const void *hdr, + u_int16_t datalen, + int *hotdrop) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) +static int +match(const struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + const void *matchinfo, + int offset, + int *hotdrop) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static int +match(const struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + const void *matchinfo, + int offset, + unsigned int protoff, + int *hotdrop) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) +static int +match(const struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + const struct xt_match *match, + const void *matchinfo, + int offset, + unsigned int protoff, + int *hotdrop) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) */ +static bool +match(const struct sk_buff *skb, + const struct net_device *in, + const struct net_device *out, + const struct xt_match *match, + const void *matchinfo, + int offset, + unsigned int protoff, + bool *hotdrop) #endif { const struct ipt_set_info_match *info = matchinfo; @@ -56,30 +92,48 @@ match(const struct sk_buff *skb, info->match_set.flags[0] & IPSET_MATCH_INV); } -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) -static bool -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16) static int -#endif checkentry(const char *tablename, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) - const void *inf, -#else const struct ipt_ip *ip, -#endif -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_match *match, -#endif void *matchinfo, -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) unsigned int matchsize, -#endif unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static int +checkentry(const char *tablename, + const void *inf, + void *matchinfo, + unsigned int matchsize, + unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +static int +checkentry(const char *tablename, + const void *inf, + const struct xt_match *match, + void *matchinfo, + unsigned int matchsize, + unsigned int hook_mask) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) +static int +checkentry(const char *tablename, + const void *inf, + const struct xt_match *match, + void *matchinfo, + unsigned int hook_mask) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) */ +static bool +checkentry(const char *tablename, + const void *inf, + const struct xt_match *match, + void *matchinfo, + unsigned int hook_mask) +#endif { struct ipt_set_info_match *info = matchinfo; ip_set_id_t index; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) if (matchsize != IPT_ALIGN(sizeof(struct ipt_set_info_match))) { ip_set_printk("invalid matchsize %d", matchsize); return 0; @@ -101,19 +155,21 @@ checkentry(const char *tablename, return 1; } -static void destroy( -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - const struct xt_match *match, -#endif -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) - void *matchinfo, unsigned int matchsize) -#else +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static void destroy(void *matchinfo, + unsigned int matchsize) +#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +static void destroy(const struct xt_match *match, + void *matchinfo, + unsigned int matchsize) +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19) */ +static void destroy(const struct xt_match *match, void *matchinfo) #endif { struct ipt_set_info_match *info = matchinfo; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) if (matchsize != IPT_ALIGN(sizeof(struct ipt_set_info_match))) { ip_set_printk("invalid matchsize %d", matchsize); return; @@ -122,37 +178,38 @@ static void destroy( ip_set_put(info->match_set.index); } -static struct ipt_match set_match = { +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17) +static struct xt_match set_match = { .name = "set", -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) - .family = AF_INET, -#endif .match = &match, -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) - .matchsize = sizeof(struct ipt_set_info_match), -#endif .checkentry = &checkentry, .destroy = &destroy, .me = THIS_MODULE }; +#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,17) */ +static struct xt_match set_match = { + .name = "set", + .family = AF_INET, + .match = &match, + .matchsize = sizeof(struct ipt_set_info_match), + .checkentry = &checkentry, + .destroy = &destroy, + .me = THIS_MODULE +}; +#endif MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jozsef Kadlecsik "); MODULE_DESCRIPTION("iptables IP set match module"); -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) -#define ipt_register_match xt_register_match -#define ipt_unregister_match xt_unregister_match -#endif - static int __init ipt_ipset_init(void) { - return ipt_register_match(&set_match); + return xt_register_match(&set_match); } static void __exit ipt_ipset_fini(void) { - ipt_unregister_match(&set_match); + xt_unregister_match(&set_match); } module_init(ipt_ipset_init);