X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvcl%2Fvppcom.c;h=46cea2a1884be4a0d8072698fbce58a06b289ce6;hb=b4e5e50fe;hp=916ddf94f029ec278678b797d64c701a9fb7f8b9;hpb=9ace36d0f9b04e2d4db410607ee33a8e72ef00c5;p=vpp.git diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 916ddf94f02..46cea2a1884 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -60,8 +60,8 @@ vppcom_session_state_str (vcl_session_state_t state) switch (state) { - case STATE_START: - st = "STATE_START"; + case STATE_CLOSED: + st = "STATE_CLOSED"; break; case STATE_CONNECT: @@ -84,8 +84,8 @@ vppcom_session_state_str (vcl_session_state_t state) st = "STATE_DISCONNECT"; break; - case STATE_FAILED: - st = "STATE_FAILED"; + case STATE_DETACHED: + st = "STATE_DETACHED"; break; case STATE_UPDATED: @@ -443,7 +443,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk, { VDBG (0, "ERROR: session index %u: connect failed! %U", session_index, format_api_error, ntohl (mp->retval)); - session->session_state = STATE_FAILED | STATE_DISCONNECT; + session->session_state = STATE_DETACHED | STATE_DISCONNECT; session->vpp_handle = mp->handle; return session_index; } @@ -457,7 +457,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk, { VDBG (0, "segment for session %u is not mounted!", session->session_index); - session->session_state = STATE_FAILED | STATE_DISCONNECT; + session->session_state = STATE_DETACHED | STATE_DISCONNECT; vcl_send_session_disconnect (wrk, session); return session_index; } @@ -479,7 +479,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk, { VDBG (0, "ct segment for session %u is not mounted!", session->session_index); - session->session_state = STATE_FAILED | STATE_DISCONNECT; + session->session_state = STATE_DETACHED | STATE_DISCONNECT; vcl_send_session_disconnect (wrk, session); return session_index; } @@ -565,7 +565,7 @@ vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp) format_api_error, mp->retval); if (session) { - session->session_state = STATE_FAILED; + session->session_state = STATE_DETACHED; session->vpp_handle = mp->handle; return sid; } @@ -679,6 +679,7 @@ vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg) } clib_fifo_add2 (session->accept_evts_fifo, vcl_msg); + vcl_msg->flags = 0; vcl_msg->accepted_msg = *msg; /* Session handle points to listener until fully accepted by app */ vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index); @@ -699,6 +700,10 @@ vcl_session_disconnected_handler (vcl_worker_t * wrk, return 0; } + /* Late disconnect notification on a session that has been closed */ + if (session->session_state == STATE_CLOSED) + return 0; + /* Caught a disconnect before actually accepting the session */ if (session->session_state == STATE_LISTEN) { @@ -708,7 +713,10 @@ vcl_session_disconnected_handler (vcl_worker_t * wrk, return 0; } - session->session_state = STATE_VPP_CLOSING; + /* If not already reset change state */ + if (session->session_state != STATE_DISCONNECT) + session->session_state = STATE_VPP_CLOSING; + return session; } @@ -727,6 +735,14 @@ vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data) } vcl_session_table_del_vpp_handle (wrk, msg->handle); + /* Should not happen. App did not close the connection so don't free it. */ + if (session->session_state != STATE_CLOSED) + { + VDBG (0, "app did not close session %d", session->session_index); + session->session_state = STATE_DETACHED; + session->vpp_handle = VCL_INVALID_SESSION_HANDLE; + return; + } vcl_session_free (wrk, session); } @@ -906,7 +922,7 @@ vppcom_wait_for_session_state_change (u32 session_index, { return VPPCOM_OK; } - if (session->session_state & STATE_FAILED) + if (session->session_state & STATE_DETACHED) { return VPPCOM_ECONNREFUSED; } @@ -1220,7 +1236,7 @@ vppcom_session_create (u8 proto, u8 is_nonblocking) session = vcl_session_alloc (wrk); session->session_type = proto; - session->session_state = STATE_START; + session->session_state = STATE_CLOSED; session->vpp_handle = ~0; session->is_dgram = vcl_proto_is_dgram (proto); @@ -1308,12 +1324,21 @@ vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session, vcl_send_session_reset_reply (mq, wrk->my_client_index, session->vpp_handle, 0); } + else if (state == STATE_DETACHED) + { + /* Should not happen. VPP cleaned up before app confirmed close */ + VDBG (0, "vpp freed session %d before close", session->session_index); + goto free_session; + } + + session->session_state = STATE_CLOSED; /* Session is removed only after vpp confirms the disconnect */ return rv; cleanup: vcl_session_table_del_vpp_handle (wrk, vpp_handle); +free_session: vcl_session_free (wrk, session); vcl_evt (VCL_EVT_CLOSE, session, rv); @@ -2770,7 +2795,7 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, add_event = 1; events[*num_ev].events |= EPOLLOUT; session_evt_data = session->vep.ev.data.u64; - if (session->session_state & STATE_FAILED) + if (session->session_state & STATE_DETACHED) events[*num_ev].events |= EPOLLHUP; break; case SESSION_CTRL_EVT_DISCONNECTED: @@ -3172,7 +3197,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op, /* VPP-TBD */ *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size : - session->tx_fifo ? session->tx_fifo->nitems : + session->tx_fifo ? + svm_fifo_size (session->tx_fifo) : vcm->cfg.tx_fifo_size); *buflen = sizeof (u32); @@ -3203,7 +3229,8 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op, /* VPP-TBD */ *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size : - session->rx_fifo ? session->rx_fifo->nitems : + session->rx_fifo ? + svm_fifo_size (session->rx_fifo) : vcm->cfg.rx_fifo_size); *buflen = sizeof (u32);