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authorVladislav Grishenko <themiron@yandex-team.ru>2022-06-23 00:45:16 +0500
committerNeale Ranns <neale@graphiant.com>2022-09-30 03:48:42 +0000
commit5c801b362a536fcae704c50bf1573362d372bb3c (patch)
treef8724d4f1d7d68a7fbf3d47523e08a478ee70aea /src/vnet/udp/udp_api.c
parenta30495ce0dd15240c5d03a5f3e17c3428e09dd5c (diff)
udp: add udp encap source port entropy support
Encode entropy value in UDP source port when requested per RFC 7510. CLI already has "src-port-is-entropy", use zero UDP source port in API to avoid breaking changes, since zero port is not something to be used in wild. Also, mark UDP encapsualtion API as mp-safe as already done for CLI. Type: feature Change-Id: Ieb61ee11e058179ed566ff1f251a3391eb169d52 Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru>
Diffstat (limited to 'src/vnet/udp/udp_api.c')
-rw-r--r--src/vnet/udp/udp_api.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/src/vnet/udp/udp_api.c b/src/vnet/udp/udp_api.c
index 0f2d014946f..ae6b5bb5807 100644
--- a/src/vnet/udp/udp_api.c
+++ b/src/vnet/udp/udp_api.c
@@ -99,6 +99,7 @@ vl_api_udp_encap_add_t_handler (vl_api_udp_encap_add_t *mp)
{
vl_api_udp_encap_add_reply_t *rmp;
ip46_address_t src_ip, dst_ip;
+ udp_encap_fixup_flags_t flags;
u32 fib_index, table_id;
fib_protocol_t fproto;
ip46_type_t itype;
@@ -119,11 +120,13 @@ vl_api_udp_encap_add_t_handler (vl_api_udp_encap_add_t *mp)
goto done;
}
- uei = udp_encap_add_and_lock (fproto, fib_index,
- &src_ip, &dst_ip,
+ flags = UDP_ENCAP_FIXUP_NONE;
+ if (mp->udp_encap.src_port == 0)
+ flags |= UDP_ENCAP_FIXUP_UDP_SRC_PORT_ENTROPY;
+
+ uei = udp_encap_add_and_lock (fproto, fib_index, &src_ip, &dst_ip,
ntohs (mp->udp_encap.src_port),
- ntohs (mp->udp_encap.dst_port),
- UDP_ENCAP_FIXUP_NONE);
+ ntohs (mp->udp_encap.dst_port), flags);
done:
/* *INDENT-OFF* */
@@ -189,11 +192,19 @@ vl_api_udp_decap_add_del_t_handler (vl_api_udp_decap_add_del_t *mp)
static clib_error_t *
udp_api_hookup (vlib_main_t * vm)
{
+ api_main_t *am = vlibapi_get_main ();
+
/*
* Set up the (msg_name, crc, message-id) table
*/
REPLY_MSG_ID_BASE = setup_message_id_table ();
+ /* Mark these APIs as mp safe */
+ vl_api_set_msg_thread_safe (am, REPLY_MSG_ID_BASE + VL_API_UDP_ENCAP_ADD, 1);
+ vl_api_set_msg_thread_safe (am, REPLY_MSG_ID_BASE + VL_API_UDP_ENCAP_DEL, 1);
+ vl_api_set_msg_thread_safe (am, REPLY_MSG_ID_BASE + VL_API_UDP_ENCAP_DUMP,
+ 1);
+
return 0;
}