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Diffstat (limited to 'src/vnet/ipsec/ah_decrypt.c')
-rw-r--r--src/vnet/ipsec/ah_decrypt.c38
1 files changed, 28 insertions, 10 deletions
diff --git a/src/vnet/ipsec/ah_decrypt.c b/src/vnet/ipsec/ah_decrypt.c
index f46fa6e2161..22f9a09453e 100644
--- a/src/vnet/ipsec/ah_decrypt.c
+++ b/src/vnet/ipsec/ah_decrypt.c
@@ -24,10 +24,11 @@
#include <vnet/ipsec/ah.h>
#include <vnet/ipsec/ipsec_io.h>
-#define foreach_ah_decrypt_next \
- _ (DROP, "error-drop") \
- _ (IP4_INPUT, "ip4-input") \
- _ (IP6_INPUT, "ip6-input")
+#define foreach_ah_decrypt_next \
+ _(DROP, "error-drop") \
+ _(IP4_INPUT, "ip4-input") \
+ _(IP6_INPUT, "ip6-input") \
+ _(HANDOFF, "handoff")
#define _(v, s) AH_DECRYPT_NEXT_##v,
typedef enum
@@ -175,6 +176,21 @@ ah_decrypt_inline (vlib_main_t * vm,
thread_index, current_sa_index);
}
+ if (PREDICT_FALSE (~0 == sa0->decrypt_thread_index))
+ {
+ /* this is the first packet to use this SA, claim the SA
+ * for this thread. this could happen simultaneously on
+ * another thread */
+ clib_atomic_cmp_and_swap (&sa0->decrypt_thread_index, ~0,
+ ipsec_sa_assign_thread (thread_index));
+ }
+
+ if (PREDICT_TRUE (thread_index != sa0->decrypt_thread_index))
+ {
+ next[0] = AH_DECRYPT_NEXT_HANDOFF;
+ goto next;
+ }
+
pd->sa_index = current_sa_index;
ih4 = vlib_buffer_get_current (b[0]);
@@ -421,9 +437,10 @@ VLIB_REGISTER_NODE (ah4_decrypt_node) = {
.n_next_nodes = AH_DECRYPT_N_NEXT,
.next_nodes = {
-#define _(s,n) [AH_DECRYPT_NEXT_##s] = n,
- foreach_ah_decrypt_next
-#undef _
+ [AH_DECRYPT_NEXT_DROP] = "ip4-drop",
+ [AH_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
+ [AH_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
+ [AH_DECRYPT_NEXT_HANDOFF] = "esp4-decrypt-tun-handoff",
},
};
/* *INDENT-ON* */
@@ -447,9 +464,10 @@ VLIB_REGISTER_NODE (ah6_decrypt_node) = {
.n_next_nodes = AH_DECRYPT_N_NEXT,
.next_nodes = {
-#define _(s,n) [AH_DECRYPT_NEXT_##s] = n,
- foreach_ah_decrypt_next
-#undef _
+ [AH_DECRYPT_NEXT_DROP] = "ip6-drop",
+ [AH_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
+ [AH_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
+ [AH_DECRYPT_NEXT_HANDOFF] = "esp6-decrypt-handoff",
},
};
/* *INDENT-ON* */