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build: resolve compile error with Linux 3.13

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net_random has been removed in commit v3.14-rc1~94^2~191 and replaced
by its definition, prandom_u32.

prandom_u32 was only introduced in v3.8-rc1~74^2~22, so we will have
an extra ifdef for 3.7 support.
This commit is contained in:
Jan Engelhardt
2014-04-18 19:06:59 +02:00
parent ae307c0bf3
commit f2e21e67a5
3 changed files with 9 additions and 5 deletions
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4
extensions/compat_xtables.h
View File

@@ -12,6 +12,10 @@
# warning Kernels below 3.7 not supported.
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0)
# define prandom_u32() random32()
#endif
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
# if !defined(CONFIG_NF_CONNTRACK_MARK)
# warning You have CONFIG_NF_CONNTRACK enabled, but CONFIG_NF_CONNTRACK_MARK is not (please enable).

4
extensions/xt_CHAOS.c
View File

@@ -68,7 +68,7 @@ xt_chaos_total(struct sk_buff *skb, const struct xt_action_param *par)
ret = xm_tcp->match(skb, &local_par);
hotdrop = local_par.hotdrop;
}
if (!ret || hotdrop || (unsigned int)net_random() > delude_percentage)
if (!ret || hotdrop || (unsigned int)prandom_u32() > delude_percentage)
return;
destiny = (info->variant == XTCHAOS_TARPIT) ? xt_tarpit : xt_delude;
@@ -98,7 +98,7 @@ chaos_tg(struct sk_buff *skb, const struct xt_action_param *par)
const struct xt_chaos_tginfo *info = par->targinfo;
const struct iphdr *iph = ip_hdr(skb);
if ((unsigned int)net_random() <= reject_percentage) {
if ((unsigned int)prandom_u32() <= reject_percentage) {
struct xt_action_param local_par;
local_par.in = par->in;
local_par.out = par->out;

6
extensions/xt_TARPIT.c
View File

@@ -107,8 +107,8 @@ static bool xttarpit_honeypot(struct tcphdr *tcph, const struct tcphdr *oth,
tcph->syn = true;
tcph->ack = true;
tcph->window = oth->window &
((net_random() & 0x1f) - 0xf);
tcph->seq = htonl(net_random() & ~oth->seq);
((prandom_u32() & 0x1f) - 0xf);
tcph->seq = htonl(prandom_u32() & ~oth->seq);
tcph->ack_seq = htonl(ntohl(oth->seq) + oth->syn);
}
@@ -117,7 +117,7 @@ static bool xttarpit_honeypot(struct tcphdr *tcph, const struct tcphdr *oth,
tcph->syn = false;
tcph->ack = true;
tcph->window = oth->window &
((net_random() & 0x1f) - 0xf);
((prandom_u32() & 0x1f) - 0xf);
tcph->ack_seq = payload > 100 ?
htonl(ntohl(oth->seq) + payload) :
oth->seq;