#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/ipsec_io.h>
+#include <vnet/ipsec/ipsec_output.h>
#define foreach_ipsec_output_error \
_(RX_PKTS, "IPSec pkts received") \
return s;
}
-always_inline void
-ipsec4_out_spd_add_flow_cache_entry (ipsec_main_t *im, u8 pr, u32 la, u32 ra,
- u16 lp, u16 rp, u32 pol_id)
-{
- u64 hash;
- u8 overwrite = 0, stale_overwrite = 0;
- ipsec4_spd_5tuple_t ip4_5tuple = { .ip4_addr = { (ip4_address_t) la,
- (ip4_address_t) ra },
- .port = { lp, rp },
- .proto = pr };
-
- ip4_5tuple.kv_16_8.value = (((u64) pol_id) << 32) | ((u64) im->epoch_count);
-
- hash = ipsec4_hash_16_8 (&ip4_5tuple.kv_16_8);
- hash &= (im->ipsec4_out_spd_hash_num_buckets - 1);
-
- ipsec_spinlock_lock (&im->ipsec4_out_spd_hash_tbl[hash].bucket_lock);
- /* Check if we are overwriting an existing entry so we know
- whether to increment the flow cache counter. Since flow
- cache counter is reset on any policy add/remove, but
- hash table values are not, we also need to check if the entry
- we are overwriting is stale or not. If it's a stale entry
- overwrite, we still want to increment flow cache counter */
- overwrite = (im->ipsec4_out_spd_hash_tbl[hash].value != 0);
- /* Check for stale entry by comparing with current epoch count */
- if (PREDICT_FALSE (overwrite))
- stale_overwrite =
- (im->epoch_count !=
- ((u32) (im->ipsec4_out_spd_hash_tbl[hash].value & 0xFFFFFFFF)));
- clib_memcpy_fast (&im->ipsec4_out_spd_hash_tbl[hash], &ip4_5tuple.kv_16_8,
- sizeof (ip4_5tuple.kv_16_8));
- ipsec_spinlock_unlock (&im->ipsec4_out_spd_hash_tbl[hash].bucket_lock);
-
- /* Increment the counter to track active flow cache entries
- when entering a fresh entry or overwriting a stale one */
- if (!overwrite || stale_overwrite)
- clib_atomic_fetch_add_relax (&im->ipsec4_out_spd_flow_cache_entries, 1);
-
- return;
-}
-
-always_inline ipsec_policy_t *
-ipsec4_out_spd_find_flow_cache_entry (ipsec_main_t *im, u8 pr, u32 la, u32 ra,
- u16 lp, u16 rp)
-{
- ipsec_policy_t *p = NULL;
- ipsec4_hash_kv_16_8_t kv_result;
- u64 hash;
-
- if (PREDICT_FALSE ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP) &&
- (pr != IP_PROTOCOL_SCTP)))
- {
- lp = 0;
- rp = 0;
- }
- ipsec4_spd_5tuple_t ip4_5tuple = { .ip4_addr = { (ip4_address_t) la,
- (ip4_address_t) ra },
- .port = { lp, rp },
- .proto = pr };
-
- hash = ipsec4_hash_16_8 (&ip4_5tuple.kv_16_8);
- hash &= (im->ipsec4_out_spd_hash_num_buckets - 1);
-
- ipsec_spinlock_lock (&im->ipsec4_out_spd_hash_tbl[hash].bucket_lock);
- kv_result = im->ipsec4_out_spd_hash_tbl[hash];
- ipsec_spinlock_unlock (&im->ipsec4_out_spd_hash_tbl[hash].bucket_lock);
-
- if (ipsec4_hash_key_compare_16_8 ((u64 *) &ip4_5tuple.kv_16_8,
- (u64 *) &kv_result))
- {
- if (im->epoch_count == ((u32) (kv_result.value & 0xFFFFFFFF)))
- {
- /* Get the policy based on the index */
- p =
- pool_elt_at_index (im->policies, ((u32) (kv_result.value >> 32)));
- }
- }
-
- return p;
-}
-
-always_inline ipsec_policy_t *
-ipsec_output_policy_match (ipsec_spd_t *spd, u8 pr, u32 la, u32 ra, u16 lp,
- u16 rp, u8 flow_cache_enabled)
-{
- ipsec_main_t *im = &ipsec_main;
- ipsec_policy_t *p;
- u32 *i;
-
- if (!spd)
- return 0;
-
- vec_foreach (i, spd->policies[IPSEC_SPD_POLICY_IP4_OUTBOUND])
- {
- p = pool_elt_at_index (im->policies, *i);
- if (PREDICT_FALSE (p->protocol && (p->protocol != pr)))
- continue;
-
- if (ra < clib_net_to_host_u32 (p->raddr.start.ip4.as_u32))
- continue;
-
- if (ra > clib_net_to_host_u32 (p->raddr.stop.ip4.as_u32))
- continue;
-
- if (la < clib_net_to_host_u32 (p->laddr.start.ip4.as_u32))
- continue;
-
- if (la > clib_net_to_host_u32 (p->laddr.stop.ip4.as_u32))
- continue;
-
- if (PREDICT_FALSE ((pr != IP_PROTOCOL_TCP) && (pr != IP_PROTOCOL_UDP) &&
- (pr != IP_PROTOCOL_SCTP)))
- {
- lp = 0;
- rp = 0;
- goto add_flow_cache;
- }
-
- if (lp < p->lport.start)
- continue;
-
- if (lp > p->lport.stop)
- continue;
-
- if (rp < p->rport.start)
- continue;
-
- if (rp > p->rport.stop)
- continue;
-
- add_flow_cache:
- if (flow_cache_enabled)
- {
- /* Add an Entry in Flow cache */
- ipsec4_out_spd_add_flow_cache_entry (
- im, pr, clib_host_to_net_u32 (la), clib_host_to_net_u32 (ra),
- clib_host_to_net_u16 (lp), clib_host_to_net_u16 (rp), *i);
- }
-
- return p;
- }
- 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 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;
- u32 *i;
-
- if (!spd)
- return 0;
-
- vec_foreach (i, spd->policies[IPSEC_SPD_POLICY_IP6_OUTBOUND])
- {
- p = pool_elt_at_index (im->policies, *i);
- if (PREDICT_FALSE (p->protocol && (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)
ipsec_spd_t *spd0 = 0;
int bogus;
u64 nc_protect = 0, nc_bypass = 0, nc_discard = 0, nc_nomatch = 0;
- u8 flow_cache_enabled = im->flow_cache_flag;
+ u8 flow_cache_enabled = im->output_flow_cache_flag;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
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