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Code Issues Releases Wiki Activity

IPMARK: IPv6 support

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This commit is contained in:
Jan Engelhardt
2008-04-08 20:00:40 +02:00
parent b63ac3be45
commit 2c7b1d5330
4 changed files with 111 additions and 15 deletions
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36
extensions/libxt_IPMARK.c
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@@ -16,6 +16,10 @@
#define IPT_AND_MASK_USED 2
#define IPT_OR_MASK_USED 4
enum {
FL_SHIFT = 1 << 3,
};
/* Function which prints out usage message. */
static void ipmark_tg_help(void)
{
@@ -24,6 +28,7 @@ static void ipmark_tg_help(void)
" --addr src/dst use source or destination ip address\n"
" --and-mask value logical AND ip address with this value becomes MARK\n"
" --or-mask value logical OR ip address with this value becomes MARK\n"
" --shift value shift address right by value before copying to mark\n"
"\n");
}
@@ -31,6 +36,7 @@ static const struct option ipmark_tg_opts[] = {
{ "addr", 1, 0, '1' },
{ "and-mask", 1, 0, '2' },
{ "or-mask", 1, 0, '3' },
{.name = "shift", .has_arg = true, .val = '4'},
{NULL},
};
@@ -46,6 +52,7 @@ static int ipmark_tg_parse(int c, char **argv, int invert, unsigned int *flags,
const void *entry, struct xt_entry_target **target)
{
struct xt_ipmark_tginfo *info = (void *)(*target)->data;
unsigned int n;
switch (c) {
char *end;
@@ -78,6 +85,18 @@ static int ipmark_tg_parse(int c, char **argv, int invert, unsigned int *flags,
*flags |= IPT_OR_MASK_USED;
break;
case '4':
param_act(P_ONLY_ONCE, "IPMARK", "--shift", *flags & FL_SHIFT);
param_act(P_NO_INVERT, "IPMARK", "--shift", invert);
/*
* Anything >31 does not make sense for IPv4, but it still
* does the right thing.
*/
if (!strtonum(optarg, NULL, &n, 0, 128))
param_act(P_BAD_VALUE, "IPMARK", "--shift", optarg);
info->shift = n;
return true;
default:
return 0;
}
@@ -141,7 +160,24 @@ static struct xtables_target ipmark_tg4_reg = {
.extra_opts = ipmark_tg_opts,
};
static struct xtables_target ipmark_tg6_reg = {
.version = XTABLES_VERSION,
.name = "IPMARK",
.family = PF_INET6,
.revision = 0,
.size = XT_ALIGN(sizeof(struct xt_ipmark_tginfo)),
.userspacesize = XT_ALIGN(sizeof(struct xt_ipmark_tginfo)),
.help = ipmark_tg_help,
.init = ipmark_tg_init,
.parse = ipmark_tg_parse,
.final_check = ipmark_tg_check,
.print = ipmark_tg_print,
.save = ipmark_tg_save,
.extra_opts = ipmark_tg_opts,
};
static void _init(void)
{
xtables_register_target(&ipmark_tg4_reg);
xtables_register_target(&ipmark_tg6_reg);
}