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authorPiotr Bronowski <piotrx.bronowski@intel.com>2022-07-08 12:45:05 +0000
committerFan Zhang <roy.fan.zhang@intel.com>2022-07-15 12:45:19 +0000
commit86f8208af43efaa71b8e1c0a5ff86fc233456d9d (patch)
tree18feadc95586f549325f2a1872492caa9ad32df0 /src/vnet/ipsec/ipsec_output.c
parent963e9b583b7fa7c26efc7acee2449069057b93d7 (diff)
ipsec: fast path outbound policy matching implementation for ipv6
With this patch fast path for ipv6 policy lookup is enabled. This impelentation scales and outperforms original implementation when the number of defined flows is higher thatn 100k. Type: feature Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com> Change-Id: I9364b5b8db4fc708790d48c538add272c7cea400
Diffstat (limited to 'src/vnet/ipsec/ipsec_output.c')
-rw-r--r--src/vnet/ipsec/ipsec_output.c85
1 files changed, 0 insertions, 85 deletions
diff --git a/src/vnet/ipsec/ipsec_output.c b/src/vnet/ipsec/ipsec_output.c
index 96c6f27fee1..028d9761c07 100644
--- a/src/vnet/ipsec/ipsec_output.c
+++ b/src/vnet/ipsec/ipsec_output.c
@@ -64,91 +64,6 @@ format_ipsec_output_trace (u8 * s, va_list * args)
return s;
}
-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_fast (&tuple->ip6_laddr, la, sizeof (ip6_address_t));
- clib_memcpy_fast (&tuple->ip6_laddr, la, 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;
-
- ipsec_fp_5tuple_from_ip6_range (&tuples[0], la, ra, lp, rp, pr);
- if (im->fp_spd_is_enabled &&
- (0 == ipsec_fp_out_policy_match_n (&spd->fp_spd, 1, tuples, policies,
- fp_policy_ids, 1)))
- {
- p = policies[0];
- i = fp_policy_ids;
- }
-
- 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;
-}
-
static inline uword
ipsec_output_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * from_frame, int is_ipv6)