diff options
| author |   qinyang <qiny@yusur.tech> | 2023-06-27 01:11:53 -0700 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2023-07-21 16:27:14 +0000 |
| commit | af9b7156c8fd16c671ce9332613faaf864b075b3 (patch) | |
| tree | 201f45dacba23771db635c563b34315b6594d4af /src/vcl/vppcom.c | |
| parent | ae916b39049669bbada12dbcfecbb4e3f9c09c69 (diff) | |
vcl: ldp support SO_ORIGINAL_DST
Type: improvement
Support SO_ORIGINAL_DST socket option to get original dst_ip4 and dst_port if nat44 rule enabled.
Change-Id: If00e00d03e48f3b78a23a68f1b078954d79dd0f7
Signed-off-by: qinyang <qiny@yusur.tech>
Diffstat (limited to 'src/vcl/vppcom.c')
| -rw-r--r-- | src/vcl/vppcom.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index d9cc885bb0e..06a345d5792 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -351,6 +351,11 @@ vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp, session->vpp_handle = mp->handle; session->session_state = VCL_STATE_READY; + if (mp->rmt.is_ip4) + { + session->original_dst_ip4 = mp->original_dst_ip4; + session->original_dst_port = mp->original_dst_port; + } session->transport.rmt_port = mp->rmt.port; session->transport.is_ip4 = mp->rmt.is_ip4; clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip, @@ -3611,6 +3616,33 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op, rv = VPPCOM_EINVAL; break; + case VPPCOM_ATTR_GET_ORIGINAL_DST: + if (!session->transport.is_ip4) + { + /* now original dst only support ipv4*/ + rv = VPPCOM_EAFNOSUPPORT; + break; + } + if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) && + ep->ip)) + { + ep->is_ip4 = session->transport.is_ip4; + ep->port = session->original_dst_port; + clib_memcpy_fast (ep->ip, &session->original_dst_ip4, + sizeof (ip4_address_t)); + *buflen = sizeof (*ep); + VDBG (1, + "VPPCOM_ATTR_GET_ORIGINAL_DST: sh %u, is_ip4 = %u, addr = %U" + " port %d", + session_handle, ep->is_ip4, vcl_format_ip4_address, + (ip4_address_t *) (&session->original_dst_ip4), + ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (ep->port)); + } + else + rv = VPPCOM_EINVAL; + break; + case VPPCOM_ATTR_SET_LCL_ADDR: if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) && ep->ip)) |