#include <net/checksum.h>
#include <net/ipv6.h>
+#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
#include <linux/netfilter_ipv6/ip6t_ah.h>
const struct ip6t_ah *ahinfo = matchinfo;
unsigned int ptr;
unsigned int hdrlen = 0;
+ int err;
- if (ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL) < 0)
+ err = ipv6_find_hdr(skb, &ptr, NEXTHDR_AUTH, NULL);
+ if (err < 0) {
+ if (err != -ENOENT)
+ *hotdrop = 1;
return 0;
+ }
ah = skb_header_pointer(skb, ptr, sizeof(_ah), &_ah);
if (ah == NULL) {
DEBUGP("IPv6 AH spi %02X ",
(spi_match(ahinfo->spis[0], ahinfo->spis[1],
- ntohl(ah->spi),
- !!(ahinfo->invflags & IP6T_AH_INV_SPI))));
+ ntohl(ah->spi),
+ !!(ahinfo->invflags & IP6T_AH_INV_SPI))));
DEBUGP("len %02X %04X %02X ",
ahinfo->hdrlen, hdrlen,
(!ahinfo->hdrlen ||
- (ahinfo->hdrlen == hdrlen) ^
- !!(ahinfo->invflags & IP6T_AH_INV_LEN)));
+ (ahinfo->hdrlen == hdrlen) ^
+ !!(ahinfo->invflags & IP6T_AH_INV_LEN)));
DEBUGP("res %02X %04X %02X\n",
ahinfo->hdrres, ah->reserved,
!(ahinfo->hdrres && ah->reserved));
return (ah != NULL)
&&
(spi_match(ahinfo->spis[0], ahinfo->spis[1],
- ntohl(ah->spi),
- !!(ahinfo->invflags & IP6T_AH_INV_SPI)))
+ ntohl(ah->spi),
+ !!(ahinfo->invflags & IP6T_AH_INV_SPI)))
&&
(!ahinfo->hdrlen ||
- (ahinfo->hdrlen == hdrlen) ^
- !!(ahinfo->invflags & IP6T_AH_INV_LEN))
+ (ahinfo->hdrlen == hdrlen) ^
+ !!(ahinfo->invflags & IP6T_AH_INV_LEN))
&&
!(ahinfo->hdrres && ah->reserved);
}
/* Called when user tries to insert an entry of this type. */
static int
checkentry(const char *tablename,
- const void *entry,
+ const void *entry,
const struct xt_match *match,
- void *matchinfo,
- unsigned int matchinfosize,
- unsigned int hook_mask)
+ void *matchinfo,
+ unsigned int hook_mask)
{
const struct ip6t_ah *ahinfo = matchinfo;
return 1;
}
-static struct ip6t_match ah_match = {
+static struct xt_match ah_match = {
.name = "ah",
+ .family = AF_INET6,
.match = match,
.matchsize = sizeof(struct ip6t_ah),
.checkentry = checkentry,
.me = THIS_MODULE,
};
-static int __init init(void)
+static int __init ip6t_ah_init(void)
{
- return ip6t_register_match(&ah_match);
+ return xt_register_match(&ah_match);
}
-static void __exit cleanup(void)
+static void __exit ip6t_ah_fini(void)
{
- ip6t_unregister_match(&ah_match);
+ xt_unregister_match(&ah_match);
}
-module_init(init);
-module_exit(cleanup);
+module_init(ip6t_ah_init);
+module_exit(ip6t_ah_fini);