diff options
Diffstat (limited to 'src/vnet/ipsec/ipsec_output.h')
-rw-r--r-- | src/vnet/ipsec/ipsec_output.h | 95 |
1 files changed, 89 insertions, 6 deletions
diff --git a/src/vnet/ipsec/ipsec_output.h b/src/vnet/ipsec/ipsec_output.h index 6608e3c6259..1239ed1f192 100644 --- a/src/vnet/ipsec/ipsec_output.h +++ b/src/vnet/ipsec/ipsec_output.h @@ -179,7 +179,7 @@ ipsec_output_policy_match_n (ipsec_spd_t *spd, clib_memset (policies, 0, n * sizeof (ipsec_policy_t *)); - if (im->fp_spd_is_enabled) + if (im->ipv4_fp_spd_is_enabled) { ipsec_fp_5tuple_from_ip4_range_n (tuples, ip4_5tuples, n); counter += ipsec_fp_out_policy_match_n (&spd->fp_spd, 0, tuples, @@ -330,12 +330,11 @@ ipsec_output_policy_match (ipsec_spd_t *spd, u8 pr, u32 la, u32 ra, u16 lp, if (!spd) return 0; - ipsec_fp_5tuple_from_ip4_range (&tuples[0], la, ra, lp, rp, pr); - - if (im->fp_spd_is_enabled && - (1 == ipsec_fp_out_policy_match_n (&spd->fp_spd, 0, tuples, policies, - fp_policy_ids, 1))) + if (im->ipv4_fp_spd_is_enabled) { + ipsec_fp_5tuple_from_ip4_range (&tuples[0], la, ra, lp, rp, pr); + ipsec_fp_out_policy_match_n (&spd->fp_spd, 0, tuples, policies, + fp_policy_ids, 1); p = policies[0]; i = fp_policy_ids; if (PREDICT_FALSE ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP) && @@ -400,4 +399,88 @@ ipsec_output_policy_match (ipsec_spd_t *spd, u8 pr, u32 la, u32 ra, u16 lp, return 0; } +always_inline uword +ip6_addr_match_range (ip6_address_t *a, ip6_address_t *la, ip6_address_t *ua) +{ + if ((memcmp (a->as_u64, la->as_u64, 2 * sizeof (u64)) >= 0) && + (memcmp (a->as_u64, ua->as_u64, 2 * sizeof (u64)) <= 0)) + return 1; + return 0; +} + +always_inline void +ipsec_fp_5tuple_from_ip6_range (ipsec_fp_5tuple_t *tuple, ip6_address_t *la, + ip6_address_t *ra, u16 lp, u16 rp, u8 pr) + +{ + clib_memcpy (&tuple->ip6_laddr, la, sizeof (ip6_address_t)); + clib_memcpy (&tuple->ip6_raddr, ra, sizeof (ip6_address_t)); + + tuple->lport = lp; + tuple->rport = rp; + tuple->protocol = pr; + tuple->is_ipv6 = 1; +} + +always_inline ipsec_policy_t * +ipsec6_output_policy_match (ipsec_spd_t *spd, ip6_address_t *la, + ip6_address_t *ra, u16 lp, u16 rp, u8 pr) +{ + ipsec_main_t *im = &ipsec_main; + ipsec_policy_t *p; + ipsec_policy_t *policies[1]; + ipsec_fp_5tuple_t tuples[1]; + u32 fp_policy_ids[1]; + + u32 *i; + + if (!spd) + return 0; + + if (im->ipv6_fp_spd_is_enabled) + { + + ipsec_fp_5tuple_from_ip6_range (&tuples[0], la, ra, lp, rp, pr); + ipsec_fp_out_policy_match_n (&spd->fp_spd, 1, tuples, policies, + fp_policy_ids, 1); + p = policies[0]; + i = fp_policy_ids; + return p; + } + + vec_foreach (i, spd->policies[IPSEC_SPD_POLICY_IP6_OUTBOUND]) + { + p = pool_elt_at_index (im->policies, *i); + if (PREDICT_FALSE ((p->protocol != IPSEC_POLICY_PROTOCOL_ANY) && + (p->protocol != pr))) + continue; + + if (!ip6_addr_match_range (ra, &p->raddr.start.ip6, &p->raddr.stop.ip6)) + continue; + + if (!ip6_addr_match_range (la, &p->laddr.start.ip6, &p->laddr.stop.ip6)) + continue; + + if (PREDICT_FALSE ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP) && + (pr != IP_PROTOCOL_SCTP))) + return p; + + if (lp < p->lport.start) + continue; + + if (lp > p->lport.stop) + continue; + + if (rp < p->rport.start) + continue; + + if (rp > p->rport.stop) + continue; + + return p; + } + + return 0; +} + #endif /* !IPSEC_OUTPUT_H */ |