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authorNathan Skrzypczak <nathan.skrzypczak@gmail.com>2020-09-08 15:16:08 +0200
committerDave Barach <openvpp@barachs.net>2020-09-25 19:55:39 +0000
commitece39214bcb05c535ba5de9af97b5f84f6911cba (patch)
treef7c606d8fb1b880d59f150fdfcd9ab1f17da9b1d /src/plugins/cnat/cnat_client.c
parent277d402bee6f4ad0ffe185515de44e6457a57a9e (diff)
cnat: Ip ICMP error support
Type: feature Add CNAT translation for ICMP 4 & 6 errors inner packet will be translated according to existing sessions. Change-Id: If118751988f44ef96b800878596296d1ab8ab6f8 Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>
Diffstat (limited to 'src/plugins/cnat/cnat_client.c')
-rw-r--r--src/plugins/cnat/cnat_client.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/src/plugins/cnat/cnat_client.c b/src/plugins/cnat/cnat_client.c
index 10d9966ad53..314000d785e 100644
--- a/src/plugins/cnat/cnat_client.c
+++ b/src/plugins/cnat/cnat_client.c
@@ -61,12 +61,10 @@ cnat_client_free_by_ip (ip46_address_t * ip, u8 af)
cnat_client_t *cc;
cc = (AF_IP4 == af ?
cnat_client_ip4_find (&ip->ip4) : cnat_client_ip6_find (&ip->ip6));
- /* This can happen if the translation gets deleted
- before the session */
- if (NULL == cc)
- return;
+ ASSERT (NULL != cc);
+
if ((0 == cnat_client_uncnt_session (cc))
- && (cc->flags & CNAT_FLAG_EXPIRES))
+ && (cc->flags & CNAT_FLAG_EXPIRES) && (0 == cc->tr_refcnt))
cnat_client_destroy (cc);
}
@@ -101,7 +99,6 @@ cnat_client_throttle_pool_process ()
/* *INDENT-ON* */
vec_foreach (ai, del_vec)
{
- /* Free session */
addr = pool_elt_at_index (cnat_client_db.throttle_pool[i], *ai);
pool_put (cnat_client_db.throttle_pool[i], addr);
}
@@ -127,7 +124,7 @@ cnat_client_translation_deleted (index_t cci)
ASSERT (!(cc->flags & CNAT_FLAG_EXPIRES));
cc->tr_refcnt--;
- if (0 == cc->tr_refcnt)
+ if (0 == cc->tr_refcnt && 0 == cc->session_refcnt)
cnat_client_destroy (cc);
}
@@ -171,6 +168,8 @@ cnat_client_add (const ip_address_t * ip, u8 flags)
cci = cc - cnat_client_pool;
cc->parent_cci = cci;
cc->flags = flags;
+ cc->tr_refcnt = 0;
+ cc->session_refcnt = 0;
ip_address_copy (&cc->cc_ip, ip);
cnat_client_db_add (cc);
@@ -238,9 +237,16 @@ cnat_client_dpo_interpose (const dpo_id_t * original,
int
cnat_client_purge (void)
{
+ vlib_thread_main_t *tm = vlib_get_thread_main ();
+ int nthreads;
+ nthreads = tm->n_threads + 1;
ASSERT (0 == hash_elts (cnat_client_db.crd_cip6));
ASSERT (0 == hash_elts (cnat_client_db.crd_cip4));
ASSERT (0 == pool_elts (cnat_client_pool));
+ for (int i = 0; i < nthreads; i++)
+ {
+ ASSERT (0 == pool_elts (cnat_client_db.throttle_pool[i]));
+ }
return (0);
}