#define foreach_ah_decrypt_next \
_ (DROP, "error-drop") \
_ (IP4_INPUT, "ip4-input") \
- _ (IP6_INPUT, "ip6-input") \
- _ (IPSEC_GRE_INPUT, "ipsec-gre-input")
+ _ (IP6_INPUT, "ip6-input")
#define _(v, s) AH_DECRYPT_NEXT_##v,
typedef enum
if (is_ip6)
{
ip6_ext_header_t *prev = NULL;
- ip6_ext_header_find_t (ih6, prev, ah0, IP_PROTOCOL_IPSEC_AH);
+ ah0 =
+ ip6_ext_header_find (vm, b[0], ih6, IP_PROTOCOL_IPSEC_AH, &prev);
pd->ip_hdr_size = sizeof (ip6_header_t);
ASSERT ((u8 *) ah0 - (u8 *) ih6 == pd->ip_hdr_size);
}
pd->seq = clib_host_to_net_u32 (ah0->seq_no);
/* anti-replay check */
- if (ipsec_sa_anti_replay_check (sa0, &ah0->seq_no))
+ if (ipsec_sa_anti_replay_check (sa0, pd->seq))
{
b[0]->error = node->errors[AH_DECRYPT_ERROR_REPLAY];
next[0] = AH_DECRYPT_NEXT_DROP;
if (PREDICT_TRUE (sa0->integ_alg != IPSEC_INTEG_ALG_NONE))
{
- ipsec_sa_anti_replay_advance (sa0, clib_host_to_net_u32 (pd->seq));
+ /* redo the anit-reply check. see esp_decrypt for details */
+ if (ipsec_sa_anti_replay_check (sa0, pd->seq))
+ {
+ b[0]->error = node->errors[AH_DECRYPT_ERROR_REPLAY];
+ next[0] = AH_DECRYPT_NEXT_DROP;
+ goto trace;
+ }
+ ipsec_sa_anti_replay_advance (sa0, pd->seq);
}
u16 ah_hdr_len = sizeof (ah_header_t) + pd->icv_size
}
}
- /* for IPSec-GRE tunnel next node is ipsec-gre-input */
- if (PREDICT_FALSE (ipsec_sa_is_set_IS_GRE (sa0)))
- next[0] = AH_DECRYPT_NEXT_IPSEC_GRE_INPUT;
-
vnet_buffer (b[0])->sw_if_index[VLIB_TX] = (u32) ~ 0;
trace:
if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))