diff options
Diffstat (limited to 'src/vcl')
| -rw-r--r-- | src/vcl/vppcom.c | 1418 | ||||
| -rw-r--r-- | src/vcl/vppcom.h | 5 |
2 files changed, 763 insertions, 660 deletions
diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 2e867c7f036..2ccb2b86705 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -66,14 +66,18 @@ typedef enum typedef enum { - STATE_START, - STATE_CONNECT, - STATE_LISTEN, - STATE_ACCEPT, - STATE_DISCONNECT, - STATE_FAILED + STATE_START = 0x01, + STATE_CONNECT = 0x02, + STATE_LISTEN = 0x04, + STATE_ACCEPT = 0x08, + STATE_CLOSE_ON_EMPTY = 0x10, + STATE_DISCONNECT = 0x20, + STATE_FAILED = 0x40 } session_state_t; +#define SERVER_STATE_OPEN (STATE_ACCEPT|STATE_CLOSE_ON_EMPTY) +#define CLIENT_STATE_OPEN (STATE_CONNECT|STATE_CLOSE_ON_EMPTY) + typedef struct epoll_event vppcom_epoll_event_t; typedef struct @@ -152,7 +156,6 @@ typedef struct vppcom_main_t_ u8 init; u32 debug; u32 *client_session_index_fifo; - volatile u32 bind_session_index; int main_cpu; /* vpe input queue */ @@ -209,11 +212,8 @@ do { \ if (PREDICT_FALSE (rv)) \ { \ clib_spinlock_unlock (&vcm->sessions_lockp); \ - \ - if (VPPCOM_DEBUG > 0) \ - clib_warning ("[%s] ERROR: Invalid ##I (%u)!", \ - getpid (), I); \ - \ + clib_warning ("[%s] ERROR: Invalid ##I (%u)!", \ + getpid (), I); \ goto done; \ } \ } while (0) @@ -272,6 +272,10 @@ vppcom_session_state_str (session_state_t state) st = "STATE_ACCEPT"; break; + case STATE_CLOSE_ON_EMPTY: + st = "STATE_CLOSE_ON_EMPTY"; + break; + case STATE_DISCONNECT: st = "STATE_DISCONNECT"; break; @@ -321,6 +325,8 @@ vppcom_session_table_lookup_listener (u64 listener_handle) { uword *p; u64 handle = listener_handle | (1ULL << 63); + session_t *session; + p = hash_get (vcm->session_index_by_vpp_handles, handle); if (!p) { @@ -336,7 +342,9 @@ vppcom_session_table_lookup_listener (u64 listener_handle) return 0; } - return pool_elt_at_index (vcm->sessions, p[0]); + session = pool_elt_at_index (vcm->sessions, p[0]); + ASSERT (session->is_listen); + return session; } static inline void @@ -434,13 +442,19 @@ vppcom_wait_for_session_state_change (u32 session_index, clib_spinlock_unlock (&vcm->sessions_lockp); return VPPCOM_OK; } + if (session->state == STATE_FAILED) + { + clib_spinlock_unlock (&vcm->sessions_lockp); + return VPPCOM_ECONNREFUSED; + } + clib_spinlock_unlock (&vcm->sessions_lockp); } while (clib_time_now (&vcm->clib_time) < timeout); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] timeout waiting for state %s (%d)", getpid (), - vppcom_session_state_str (state), state); + clib_warning ("[%d] timeout waiting for state 0x%x (%s)", getpid (), + state, vppcom_session_state_str (state)); return VPPCOM_ETIMEDOUT; } @@ -638,46 +652,10 @@ static void vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * mp) { - uword *p; - u32 session_index = ~0; - - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) - { - session_t *session = 0; - int rv; - - session_index = p[0]; - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid %u has been closed!", - getpid (), session_index); - } - else - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] vpp handle 0x%llx, sid %u disconnected!", - getpid (), mp->handle, session_index); - - session->state = STATE_DISCONNECT; - } - clib_spinlock_unlock (&vcm->sessions_lockp); - } - else - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] couldn't find session: unknown vpp handle 0x%llx", - getpid (), mp->handle); - } - if (mp->retval) - clib_warning ("[%d] disconnect_session vpp handle 0x%llx, sid %u " - "failed: %U", getpid (), mp->handle, session_index, - format_api_error, ntohl (mp->retval)); + clib_warning ("[%d] vpp handle 0x%llx: disconnect session failed: %U", + getpid (), mp->handle, format_api_error, + ntohl (mp->retval)); } static void @@ -707,57 +685,35 @@ vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) static void vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) { - session_t *session = 0; - vl_api_disconnect_session_reply_t *rmp; uword *p; - int rv = 0, rval; p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (VPPCOM_DEBUG > 0) + if (p) { - if (!p) - { - clib_warning ("[%d] request to disconnect invalid handle (%u)!", - getpid (), mp->handle); - rv = -11; - goto done; - } - clib_warning ("[%d] disconnecting handle %u sid (%u)!", getpid (), - mp->handle, p[0]); - } + int rv; + session_t *session = 0; + u32 session_index = p[0]; - goto done; + VCL_LOCK_AND_GET_SESSION (session_index, &session); + session->state = STATE_CLOSE_ON_EMPTY; - if (p) - { - clib_spinlock_lock (&vcm->sessions_lockp); - rval = vppcom_session_at_index (p[0], &session); - if (PREDICT_FALSE (rval)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), p[0]); - } - else - pool_put (vcm->sessions, session); + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] vpp handle 0x%llx, sid %u: " + "setting state to %d (%s)", + getpid (), mp->handle, session_index, session->state, + vppcom_session_state_str (session->state)); clib_spinlock_unlock (&vcm->sessions_lockp); - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); + return; + + done: + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] vpp handle 0x%llx, sid %u: " + "session lookup failed!", + getpid (), mp->handle, session_index); } else - { - clib_warning ("[%d] couldn't find session: unknown vpp handle 0x%llx", - getpid (), mp->handle); - rv = -11; - } - -done: - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); - - rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY); - rmp->retval = htonl (rv); - rmp->handle = mp->handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); + clib_warning ("[%d] vpp handle 0x%llx: session lookup by " + "handle failed!", getpid (), mp->handle); } static void @@ -776,20 +732,32 @@ vl_api_reset_session_t_handler (vl_api_reset_session_t * mp) rval = vppcom_session_at_index (p[0], &session); if (PREDICT_FALSE (rval)) { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), p[0]); + rv = VNET_API_ERROR_INVALID_VALUE_2; + clib_warning ("[%d] ERROR: sid %u: session lookup failed! " + "returning %d %U", + getpid (), p[0], rv, format_api_error, rv); } else - pool_put (vcm->sessions, session); + { + /* TBD: should this disconnect immediately and + * flush the fifos? + */ + session->state = STATE_CLOSE_ON_EMPTY; + + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] vpp handle 0x%llx, sid %u: " + "state set to %d (%s)!", getpid (), + mp->handle, p[0], session->state, + vppcom_session_state_str (session->state)); + } clib_spinlock_unlock (&vcm->sessions_lockp); - hash_unset (vcm->session_index_by_vpp_handles, mp->handle); } else { - clib_warning ("[%d] couldn't find session: unknown vpp handle 0x%llx", - getpid (), mp->handle); - rv = -11; + rv = VNET_API_ERROR_INVALID_VALUE; + clib_warning ("[%d] ERROR: vpp handle 0x%llx: session lookup " + "failed! returning %d %U", + getpid (), mp->handle, rv, format_api_error, rv); } rmp = vl_msg_api_alloc (sizeof (*rmp)); @@ -809,24 +777,25 @@ vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp) u8 is_cut_thru = 0; int rv; + session_index = mp->context; if (mp->retval) { - clib_warning ("[%d] connect failed: %U", getpid (), format_api_error, + clib_warning ("[%d] ERROR: sid %u: connect failed! %U", + getpid (), session_index, format_api_error, ntohl (mp->retval)); return; } - session_index = mp->context; if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session_index = %d 0x%08x", getpid (), - session_index, session_index); + clib_warning ("[%d] sid %u: got a connect reply!", + getpid (), session_index); clib_spinlock_lock (&vcm->sessions_lockp); if (pool_is_free_index (vcm->sessions, session_index)) { clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid %d is closed!", + clib_warning ("[%d] sid %d: session lookup failed!", getpid (), session_index); return; } @@ -905,10 +874,6 @@ vppcom_send_connect_sock (session_t * session, u32 session_index) cmp->client_index = vcm->my_client_index; cmp->context = session_index; - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] session_index = %d 0x%08x", - getpid (), session_index, session_index); - cmp->vrf = session->vrf; cmp->is_ip4 = session->peer_addr.is_ip4; clib_memcpy (cmp->ip, &session->peer_addr.ip46, sizeof (cmp->ip)); @@ -919,16 +884,38 @@ vppcom_send_connect_sock (session_t * session, u32 session_index) } static inline void -vppcom_send_disconnect (session_t * session) +vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index, + int rv) +{ + vl_api_disconnect_session_reply_t *rmp; + + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg", + getpid (), vpp_handle, session_index); + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + + rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY); + rmp->retval = htonl (rv); + rmp->handle = vpp_handle; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); +} + +static inline void +vppcom_send_disconnect_session (u64 vpp_handle, u32 session_index) { vl_api_disconnect_session_t *dmp; - /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */ + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] vpp handle 0x%llx, sid %u: sending disconnect msg", + getpid (), vpp_handle, session_index); + dmp = vl_msg_api_alloc (sizeof (*dmp)); memset (dmp, 0, sizeof (*dmp)); dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION); dmp->client_index = vcm->my_client_index; - dmp->handle = session->vpp_handle; + dmp->handle = vpp_handle; vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp); } @@ -936,16 +923,22 @@ static void vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) { session_t *session = 0; + u32 session_index = mp->context; int rv; if (mp->retval) - clib_warning ("[%d] bind failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); - - ASSERT (vcm->bind_session_index != ~0); + { + clib_warning ("[%d] ERROR: sid %u: bind failed: %U", + getpid (), session_index, format_api_error, + ntohl (mp->retval)); + rv = vppcom_session_at_index (session_index, &session); + if (rv == VPPCOM_OK) + session->state = STATE_FAILED; + return; + } clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (vcm->bind_session_index, &session); + rv = vppcom_session_at_index (session_index, &session); if (rv == VPPCOM_OK) { session->vpp_handle = mp->handle; @@ -953,9 +946,13 @@ vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) clib_memcpy (&session->lcl_addr.ip46, mp->lcl_ip, sizeof (session->peer_addr.ip46)); session->lcl_port = mp->lcl_port; - vppcom_session_table_add_listener (mp->handle, vcm->bind_session_index); - session->state = mp->retval ? STATE_FAILED : STATE_LISTEN; - vcm->bind_session_index = ~0; + vppcom_session_table_add_listener (mp->handle, session_index); + session->is_listen = 1; + session->state = STATE_LISTEN; + + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: bind succeeded! ", getpid (), + mp->context); } clib_spinlock_unlock (&vcm->sessions_lockp); } @@ -963,22 +960,13 @@ vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) static void vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp) { - session_t *session = 0; - - clib_spinlock_lock (&vcm->sessions_lockp); - session = vppcom_session_table_lookup_listener (vcm->bind_session_index); - - if (session) - { - if ((VPPCOM_DEBUG > 1) && (mp->retval)) - clib_warning ("[%d] unbind failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); + if (mp->retval) + clib_warning ("[%d] ERROR: sid %u: unbind failed: %U", + getpid (), mp->context, format_api_error, + ntohl (mp->retval)); - vppcom_session_table_del_listener (vcm->bind_session_index); - vcm->bind_session_index = ~0; - session->state = STATE_START; - } - clib_spinlock_unlock (&vcm->sessions_lockp); + else if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: unbind succeeded!", getpid (), mp->context); } u8 * @@ -1168,9 +1156,10 @@ vppcom_send_connect_session_reply (session_t * session, int retval) rmp->segment_name_length = clib_min (len, sizeof (rmp->segment_name)); clib_memcpy (rmp->segment_name, session->segment_name, rmp->segment_name_length - 1); - clib_memcpy (rmp->lcl_ip, session->lcl_addr.ip46.as_u8, + clib_memcpy (rmp->lcl_ip, session->peer_addr.ip46.as_u8, sizeof (rmp->lcl_ip)); - rmp->is_ip4 = session->lcl_addr.is_ip4; + rmp->is_ip4 = session->peer_addr.is_ip4; + rmp->lcl_port = session->peer_port; client_q = uword_to_pointer (session->client_queue_address, unix_shared_memory_queue_t *); ASSERT (client_q); @@ -1189,10 +1178,12 @@ vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp) clib_spinlock_lock (&vcm->sessions_lockp); if (!clib_fifo_free_elts (vcm->client_session_index_fifo)) { + clib_spinlock_unlock (&vcm->sessions_lockp); + if (VPPCOM_DEBUG > 1) clib_warning ("[%d] client session queue is full!", getpid ()); - clib_spinlock_unlock (&vcm->sessions_lockp); - /* TBD: fix handle */ + + /* TBD: fix handle missing in api msg. */ vppcom_send_accept_session_reply (0, VNET_API_ERROR_QUEUE_FULL); return; } @@ -1206,23 +1197,27 @@ vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp) session->client_queue_address = mp->client_queue_address; session->is_cut_thru = 1; session->is_server = 1; - session->peer_port = mp->port; + session->lcl_port = mp->port; + session->lcl_addr.is_ip4 = mp->is_ip4; + clib_memcpy (&session->lcl_addr.ip46, mp->ip, + sizeof (session->lcl_addr.ip46)); + + /* TBD: missing peer info in api msg. + */ session->peer_addr.is_ip4 = mp->is_ip4; - clib_memcpy (&session->peer_addr.ip46, mp->ip, - sizeof (session->peer_addr.ip46)); + ASSERT (session->lcl_addr.is_ip4 == session->peer_addr.is_ip4); session->state = STATE_ACCEPT; clib_fifo_add1 (vcm->client_session_index_fifo, session_index); if (VPPCOM_DEBUG > 1) - clib_warning - ("[%d] Got a cut-thru connect request to client: " - "sid %d, clib_fifo_elts %u!\n", getpid (), session_index, - clib_fifo_elts (vcm->client_session_index_fifo)); + clib_warning ("[%d] sid %u: Got a cut-thru connect request! " + "clib_fifo_elts %u!\n", getpid (), session_index, + clib_fifo_elts (vcm->client_session_index_fifo)); clib_spinlock_unlock (&vcm->sessions_lockp); } static void -vppcom_send_bind_sock (session_t * session) +vppcom_send_bind_sock (session_t * session, u32 session_index) { vl_api_bind_sock_t *bmp; @@ -1233,7 +1228,7 @@ vppcom_send_bind_sock (session_t * session) bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK); bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); + bmp->context = session_index; bmp->vrf = session->vrf; bmp->is_ip4 = session->lcl_addr.is_ip4; clib_memcpy (bmp->ip, &session->lcl_addr.ip46, sizeof (bmp->ip)); @@ -1244,133 +1239,156 @@ vppcom_send_bind_sock (session_t * session) } static void -vppcom_send_unbind_sock (u32 session_index) +vppcom_send_unbind_sock (u64 vpp_handle) { vl_api_unbind_sock_t *ump; - session_t *session = 0; - int rv; - - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return; - } ump = vl_msg_api_alloc (sizeof (*ump)); memset (ump, 0, sizeof (*ump)); ump->_vl_msg_id = ntohs (VL_API_UNBIND_SOCK); ump->client_index = vcm->my_client_index; - ump->handle = session->vpp_handle; - clib_spinlock_unlock (&vcm->sessions_lockp); + ump->handle = vpp_handle; vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump); } static int -vppcom_session_unbind_cut_thru (session_t * session, u32 session_index) +vppcom_session_unbind (u32 session_index) { - svm_fifo_segment_main_t *sm = &svm_fifo_segment_main; - svm_fifo_segment_private_t *seg; - int rv = VPPCOM_OK; + session_t *session = 0; + int rv; + u64 vpp_handle; + + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + vpp_handle = session->vpp_handle; + vppcom_session_table_del_listener (vpp_handle); + session->vpp_handle = ~0; + session->state = STATE_DISCONNECT; + + clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] sid %d, seg_nxd %d:\n" - " server_rx_fifo %p, refcnt = %d\n" - " server_tx_fifo %p, refcnt = %d", - getpid (), session_index, session->sm_seg_index, - session->server_rx_fifo, session->server_rx_fifo->refcnt, - session->server_tx_fifo, session->server_tx_fifo->refcnt); + clib_warning ("[%d] vpp handle 0x%llx, sid %u: " + "sending unbind msg! new state 0x%x (%s)", + getpid (), vpp_handle, session_index, + session->state, vppcom_session_state_str (session->state)); - seg = vec_elt_at_index (sm->segments, session->sm_seg_index); - svm_fifo_segment_free_fifo (seg, session->server_rx_fifo, - FIFO_SEGMENT_RX_FREELIST); - svm_fifo_segment_free_fifo (seg, session->server_tx_fifo, - FIFO_SEGMENT_TX_FREELIST); - svm_fifo_segment_delete (seg); + vppcom_send_unbind_sock (vpp_handle); +done: return rv; } -static int -vppcom_session_unbind (u32 session_index) +static inline int +vppcom_session_disconnect (u32 session_index) { int rv; + session_t *session; + u8 is_cut_thru, is_listen, is_server; + u64 vpp_handle; + session_state_t state; - clib_spinlock_lock (&vcm->sessions_lockp); - if (PREDICT_FALSE (pool_is_free_index (vcm->sessions, session_index))) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return VPPCOM_EBADFD; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + vpp_handle = session->vpp_handle; + is_server = session->is_server; + is_listen = session->is_listen; + is_cut_thru = session->is_cut_thru; + state = session->state; clib_spinlock_unlock (&vcm->sessions_lockp); - if (vcm->bind_session_index != session_index) - clib_warning ("[%d] ERROR: unbinding a not bound listener %u (%u)", - session_index, vcm->bind_session_index); - vcm->bind_session_index = session_index; - vppcom_send_unbind_sock (session_index); - rv = vppcom_wait_for_session_state_change (session_index, STATE_START, - vcm->cfg.session_timeout); - if (PREDICT_FALSE (rv)) + if (VPPCOM_DEBUG > 1) { - vcm->bind_session_index = ~0; - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] server unbind timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); - return rv; + clib_warning ("[%d] vpp handle 0x%llx, sid %u: %s state 0x%x (%s), " + "is_cut_thru %d, is_listen %d", + getpid (), vpp_handle, session_index, + is_server ? "server" : "client", + state, vppcom_session_state_str (state), + is_cut_thru, is_listen); } - return VPPCOM_OK; -} - -static inline int -vppcom_session_disconnect (u32 session_index) -{ - int rv; - session_t *session; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) + if (PREDICT_FALSE (is_listen)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; + clib_warning ("[%d] ERROR: sid %u: Cannot disconnect a " + "listen socket!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (!session->is_cut_thru) + /* Through the VPP host stack... + */ + else if (!is_cut_thru) { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] disconnecting sid (%u)", getpid (), - session_index); - vppcom_send_disconnect (session); - clib_spinlock_unlock (&vcm->sessions_lockp); + /* The peer has already initiated the close, + * so send the disconnect session reply. + */ + if (state & STATE_CLOSE_ON_EMPTY) + { + vppcom_send_disconnect_session_reply (vpp_handle, + session_index, 0 /* rv */ ); + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: sending disconnect REPLY...", + getpid (), session_index); + } - rv = vppcom_wait_for_session_state_change (session_index, - STATE_DISCONNECT, 1.0); - /* TBD: Force clean up on error/timeout since there is no other - * way to recover from a failed disconnect. + /* Otherwise, send a disconnect session msg... */ - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] disconnect (session %d) failed, rv = %s (%d)", - getpid (), session_index, vppcom_retval_str (rv), rv); + else + { + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: sending disconnect...", + getpid (), session_index, state, + vppcom_session_state_str (state)); + + vppcom_send_disconnect_session (vpp_handle, session_index); + } } + + /* Cut-thru connections... + * + * server: free fifos and segment allocated during connect/redirect + * client: no cleanup required + */ else { - /* TBD: Handle cut-thru disconnect */ - clib_spinlock_unlock (&vcm->sessions_lockp); + if (is_server) + { + svm_fifo_segment_main_t *sm = &svm_fifo_segment_main; + svm_fifo_segment_private_t *seg; + + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %d: freeing cut-thru fifos in " + "sm_seg_index %d\n" + " server_rx_fifo %p, refcnt = %d\n" + " server_tx_fifo %p, refcnt = %d", + getpid (), session_index, session->sm_seg_index, + session->server_rx_fifo, + session->server_rx_fifo->refcnt, + session->server_tx_fifo, + session->server_tx_fifo->refcnt); + + seg = vec_elt_at_index (sm->segments, session->sm_seg_index); + svm_fifo_segment_free_fifo (seg, session->server_rx_fifo, + FIFO_SEGMENT_RX_FREELIST); + svm_fifo_segment_free_fifo (seg, session->server_tx_fifo, + FIFO_SEGMENT_TX_FREELIST); + svm_fifo_segment_delete (seg); + + /* TBD: Send cut-thru disconnect event to client */ + + clib_spinlock_unlock (&vcm->sessions_lockp); + } + else + { + /* TBD: Send cut-thru disconnect event to server */ + } } - return VPPCOM_OK; +done: + return rv; } #define foreach_sock_msg \ @@ -1970,7 +1988,6 @@ vppcom_app_create (char *app_name) vcm->cfg.app_scope_global); } - vcm->bind_session_index = ~0; vcm->main_cpu = os_get_thread_index (); heap = clib_mem_get_per_cpu_heap (); h = mheap_header (heap); @@ -1994,7 +2011,7 @@ vppcom_app_create (char *app_name) rv = vppcom_connect_to_vpp (app_name); if (rv) { - clib_warning ("[%d] couldn't connect to VPP.", getpid ()); + clib_warning ("[%d] ERROR: couldn't connect to VPP!", getpid ()); return rv; } @@ -2004,7 +2021,7 @@ vppcom_app_create (char *app_name) rv = vppcom_app_session_enable (); if (rv) { - clib_warning ("[%d] vppcom_app_session_enable() failed!", + clib_warning ("[%d] ERROR: vppcom_app_session_enable() failed!", getpid ()); return rv; } @@ -2015,7 +2032,7 @@ vppcom_app_create (char *app_name) rv = vppcom_app_attach (); if (rv) { - clib_warning ("[%d] vppcom_app_attach() failed!", getpid ()); + clib_warning ("[%d] ERROR: vppcom_app_attach() failed!", getpid ()); return rv; } @@ -2068,10 +2085,11 @@ vppcom_session_create (u32 vrf, u8 proto, u8 is_nonblocking) session->proto = proto; session->state = STATE_START; session->is_nonblocking = is_nonblocking ? 1 : 0; + session->vpp_handle = ~0; clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), session_index); + clib_warning ("[%d] sid %u", getpid (), session_index); return (int) session_index; } @@ -2081,28 +2099,16 @@ vppcom_session_close (uint32_t session_index) { session_t *session = 0; int rv; - u8 is_server; u8 is_listen; - u8 is_cut_thru; u8 is_vep; u8 is_vep_session; u32 next_sid; u32 vep_idx; + uword *p; session_state_t state; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - goto done; - } - is_server = session->is_server; + VCL_LOCK_AND_GET_SESSION (session_index, &session); is_listen = session->is_listen; - is_cut_thru = session->is_cut_thru; is_vep = session->is_vep; is_vep_session = session->is_vep_session; next_sid = session->vep.next_sid; @@ -2111,7 +2117,8 @@ vppcom_session_close (uint32_t session_index) clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), session_index); + clib_warning ("[%d] sid %d: closing session...", getpid (), + session_index); if (is_vep) { @@ -2119,21 +2126,11 @@ vppcom_session_close (uint32_t session_index) { rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0); if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, " - "rv = %s (%d)", getpid (), vep_idx, next_sid, - vppcom_retval_str (rv), rv); + clib_warning ("[%d] sid %u: EPOLL_CTL_DEL vep_idx %u failed, " + "rv = %d (%s)", getpid (), next_sid, vep_idx, + rv, vppcom_retval_str (rv)); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - if (VPPCOM_DEBUG > 0) - clib_warning - ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - clib_spinlock_unlock (&vcm->sessions_lockp); - goto done; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); next_sid = session->vep.next_sid; clib_spinlock_unlock (&vcm->sessions_lockp); } @@ -2144,35 +2141,51 @@ vppcom_session_close (uint32_t session_index) { rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0); if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] EPOLL_CTL_DEL vep_idx %u, sid %u failed, " - "rv = %s (%d)", getpid (), vep_idx, session_index, - vppcom_retval_str (rv), rv); + clib_warning ("[%d] sid %u: EPOLL_CTL_DEL vep_idx %u failed! " + "rv = %d (%s)", getpid (), session_index, vep_idx, + rv, vppcom_retval_str (rv)); } - if (is_cut_thru && is_server && (state == STATE_ACCEPT)) + if (is_listen) { - rv = vppcom_session_unbind_cut_thru (session, session_index); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] unbind cut-thru (session %d) failed, " - "rv = %s (%d)", - getpid (), session_index, - vppcom_retval_str (rv), rv); + if (state == STATE_LISTEN) + { + rv = vppcom_session_unbind (session_index); + if (PREDICT_FALSE (rv < 0)) + { + if (VPPCOM_DEBUG > 0) + clib_warning ("[%d] sid %u: listener unbind failed! " + "rv = %d (%s)", + getpid (), session_index, rv, + vppcom_retval_str (rv)); + } + } } - else if (is_server && is_listen) + + else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN)) { - rv = vppcom_session_unbind (session_index); - if ((VPPCOM_DEBUG > 0) && (rv < 0)) - clib_warning ("[%d] unbind (session %d) failed, rv = %s (%d)", - getpid (), session_index, - vppcom_retval_str (rv), rv); + rv = vppcom_session_disconnect (session_index); + if (PREDICT_FALSE (rv < 0)) + clib_warning ("[%d] ERROR: sid %u: session disconnect failed! " + "rv %d (%s)", getpid (), session_index, rv, + vppcom_retval_str (rv)); } - else if (state == STATE_CONNECT) - if (vppcom_session_disconnect (session_index)) - goto done; } - clib_spinlock_lock (&vcm->sessions_lockp); + + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + if (session->vpp_handle != ~0) + { + p = hash_get (vcm->session_index_by_vpp_handles, session->vpp_handle); + if (p) + hash_unset (vcm->session_index_by_vpp_handles, session->vpp_handle); + } pool_put_index (vcm->sessions, session_index); clib_spinlock_unlock (&vcm->sessions_lockp); + + if (VPPCOM_DEBUG > 0) + clib_warning ("[%d] sid %u: session removed.", getpid (), session_index); + done: return rv; } @@ -2186,24 +2199,15 @@ vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep) if (!ep || !ep->ip) return VPPCOM_EINVAL; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); if (session->is_vep) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot bind to an epoll session!", + getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } session->vrf = ep->vrf; @@ -2212,13 +2216,16 @@ vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep) session->lcl_port = ep->port; if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d, bound to lcl address %U lcl port %u", + clib_warning ("[%d] sid %u: bound to local address %U " + "port %u, proto %s", getpid (), session_index, format_ip46_address, &session->lcl_addr.ip46, session->lcl_addr.is_ip4, - clib_net_to_host_u16 (session->lcl_port)); + clib_net_to_host_u16 (session->lcl_port), + session->proto ? "UDP" : "TCP"); clib_spinlock_unlock (&vcm->sessions_lockp); - return VPPCOM_OK; +done: + return rv; } int @@ -2227,69 +2234,49 @@ vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len) session_t *listen_session = 0; int rv; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; - } + VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session); if (listen_session->is_vep) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), listen_session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot listen on an " + "epoll session!", getpid (), listen_session_index); + rv = VPPCOM_EBADFD; + goto done; } if (listen_session->is_listen) { clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) is already in listen state!", + clib_warning ("[%d] sid %u: already in listen state!", getpid (), listen_session_index); - return VPPCOM_OK; + rv = VPPCOM_OK; + goto done; } if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d", getpid (), listen_session_index); + clib_warning ("[%d] sid %u: sending bind request...", + getpid (), listen_session_index); - ASSERT (vcm->bind_session_index == ~0); - vcm->bind_session_index = listen_session_index; - vppcom_send_bind_sock (listen_session); + vppcom_send_bind_sock (listen_session, listen_session_index); clib_spinlock_unlock (&vcm->sessions_lockp); rv = vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN, vcm->cfg.session_timeout); if (PREDICT_FALSE (rv)) { - vcm->bind_session_index = ~0; if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] server listen timed out, rv = %d (%d)", + clib_warning ("[%d] sid %u: bind failed! returning %d (%d)", getpid (), vppcom_retval_str (rv), rv); return rv; } - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; - } - listen_session->is_listen = 1; + VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session); clib_fifo_validate (vcm->client_session_index_fifo, q_len); clib_spinlock_unlock (&vcm->sessions_lockp); - - return VPPCOM_OK; +done: + return rv; } int @@ -2303,43 +2290,29 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, f64 wait_for; char *cut_thru_str; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (listen_session_index, &listen_session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), listen_session_index); - return rv; - } + VCL_LOCK_AND_GET_SESSION (listen_session_index, &listen_session); if (listen_session->is_vep) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), listen_session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot accept on an " + "epoll session!", getpid (), listen_session_index); + rv = VPPCOM_EBADFD; + goto done; } if (listen_session->state != STATE_LISTEN) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] session not in listen state, state = %s", - getpid (), - vppcom_session_state_str (listen_session->state)); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: not in listen state! " + "state 0x%x (%s)", getpid (), listen_session->state, + vppcom_session_state_str (listen_session->state)); + rv = VPPCOM_EBADFD; + goto done; } - wait_for = listen_session->is_nonblocking ? 0 : - (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time; + wait_for = ((listen_session->is_nonblocking) ? 0 : + (wait_for_time < 0) ? vcm->cfg.accept_timeout : wait_for_time); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d: %s (%d)", getpid (), - listen_session_index, - vppcom_session_state_str (listen_session->state), - listen_session->state); clib_spinlock_unlock (&vcm->sessions_lockp); while (1) @@ -2348,11 +2321,12 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, if (rv) { if ((VPPCOM_DEBUG > 0)) - clib_warning ("[%d] sid %d, accept timed out, rv = %s (%d)", + clib_warning ("[%d] sid %u: accept failed! " + "returning = %d (%s)", getpid (), listen_session_index, - vppcom_retval_str (rv), rv); + rv, vppcom_retval_str (rv)); if ((wait_for == 0) || (wait_for_time > 0)) - return rv; + goto done; } else break; @@ -2367,8 +2341,8 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, client_session->is_nonblocking = (flags & O_NONBLOCK) ? 1 : 0; if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] Got a request: client sid %d, flags %d, " - " is_nonblocking %u", getpid (), client_session_index, + clib_warning ("[%d] sid %u: Got a client request! flags %d, " + "is_nonblocking %u", getpid (), client_session_index, flags, client_session->is_nonblocking); ep->vrf = client_session->vrf; @@ -2388,7 +2362,7 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, svm_fifo_segment_create_args_t *a = &_a; svm_fifo_segment_private_t *seg; - cut_thru_str = "cut-thru "; + cut_thru_str = " cut-thru "; /* Create the segment */ memset (a, 0, sizeof (*a)); @@ -2403,14 +2377,15 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, rv = svm_fifo_segment_create (a); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] svm_fifo_segment_create ('%s') failed", - getpid (), a->segment_name); + clib_warning ("[%d] ERROR: sid %u: " + "svm_fifo_segment_create ('%s') failed! rv %d", + getpid (), client_session_index, a->segment_name, rv); vec_reset_length (a->new_segment_indices); rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; vppcom_send_connect_session_reply (client_session, rv); clib_spinlock_unlock (&vcm->sessions_lockp); - return VPPCOM_ENOMEM; + rv = VPPCOM_ENOMEM; + goto done; } client_session->segment_name = vec_dup ((u8 *) a->segment_name); @@ -2424,13 +2399,15 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, if (PREDICT_FALSE (!client_session->server_rx_fifo)) { svm_fifo_segment_delete (seg); - clib_warning ("[%d] rx fifo alloc failed, size %ld (0x%lx)", - getpid (), vcm->cfg.rx_fifo_size, - vcm->cfg.rx_fifo_size); + clib_warning ("[%d] ERROR: sid %u: rx fifo alloc failed! " + "size %ld (0x%lx)", getpid (), + client_session_index, + vcm->cfg.rx_fifo_size, vcm->cfg.rx_fifo_size); rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; vppcom_send_connect_session_reply (client_session, rv); clib_spinlock_unlock (&vcm->sessions_lockp); - return VPPCOM_ENOMEM; + rv = VPPCOM_ENOMEM; + goto done; } client_session->server_rx_fifo->master_session_index = client_session_index; @@ -2441,21 +2418,24 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, if (PREDICT_FALSE (!client_session->server_tx_fifo)) { svm_fifo_segment_delete (seg); - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] tx fifo alloc failed, size %ld (0x%lx)", - getpid (), vcm->cfg.tx_fifo_size, - vcm->cfg.tx_fifo_size); + clib_warning ("[%d] ERROR: sid %u: tx fifo alloc failed! " + "size %ld (0x%lx)", + getpid (), client_session_index, + vcm->cfg.tx_fifo_size, vcm->cfg.tx_fifo_size); rv = VNET_API_ERROR_URI_FIFO_CREATE_FAILED; vppcom_send_connect_session_reply (client_session, rv); clib_spinlock_unlock (&vcm->sessions_lockp); - return VPPCOM_ENOMEM; + rv = VPPCOM_ENOMEM; + goto done; } client_session->server_tx_fifo->master_session_index = client_session_index; if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] created segment '%s': rx_fifo %p, tx_fifo %p", - getpid (), client_session->segment_name, + clib_warning ("[%d] sid %u: created segment '%s', " + "rx_fifo %p, tx_fifo %p", + getpid (), client_session_index, + client_session->segment_name, client_session->server_rx_fifo, client_session->server_tx_fifo); @@ -2483,15 +2463,18 @@ vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, } if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d, accepted %sconnection to peer address " - "%U peer port %u", + clib_warning ("[%d] sid %u: accepted%sconnection to local %s address " + "%U port %u", getpid (), client_session_index, cut_thru_str, - format_ip46_address, &client_session->peer_addr.ip46, - client_session->peer_addr.is_ip4, - clib_net_to_host_u16 (client_session->peer_port)); + client_session->lcl_addr.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, &client_session->lcl_addr.ip46, + client_session->lcl_addr.is_ip4, + clib_net_to_host_u16 (client_session->lcl_port)); clib_spinlock_unlock (&vcm->sessions_lockp); - return (int) client_session_index; + rv = (int) client_session_index; +done: + return rv; } int @@ -2500,33 +2483,42 @@ vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep) session_t *session = 0; int rv; - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + if (PREDICT_FALSE (session->is_vep)) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; + clib_warning ("[%d] ERROR: sid %u: cannot connect on an epoll session!", + getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->is_vep) + if (PREDICT_FALSE (session->is_server)) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: is in use as a server session!", + getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_CONNECT) + if (PREDICT_FALSE (session->state & CLIENT_STATE_OPEN)) { - clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] session, sid (%u) already connected!", - getpid (), session_index); - return VPPCOM_OK; + clib_warning ("[%d] sid %u: session already connected to " + "%s %U port %d proto %s, state 0x%x (%s)", + getpid (), session_index, + session->peer_addr.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, + &session->peer_addr.ip46, session->peer_addr.is_ip4, + clib_net_to_host_u16 (session->peer_port), + session->proto ? "UDP" : "TCP", session->state, + vppcom_session_state_str (session->state)); + + clib_spinlock_unlock (&vcm->sessions_lockp); + rv = VPPCOM_OK; + goto done; } session->vrf = server_ep->vrf; @@ -2535,32 +2527,30 @@ vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep) session->peer_port = server_ep->port; if (VPPCOM_DEBUG > 0) - { - u8 *ip_str = format (0, "%U", format_ip46_address, - &session->peer_addr.ip46, - session->peer_addr.is_ip4); - clib_warning ("[%d] connect sid %d to %s server port %d proto %s", - getpid (), session_index, ip_str, - clib_net_to_host_u16 (session->peer_port), - session->proto ? "UDP" : "TCP"); - vec_free (ip_str); - } + clib_warning ("[%d] sid %u: connecting to server %s %U port %d proto %s", + getpid (), session_index, + session->peer_addr.is_ip4 ? "IPv4" : "IPv6", + format_ip46_address, + &session->peer_addr.ip46, session->peer_addr.is_ip4, + clib_net_to_host_u16 (session->peer_port), + session->proto ? "UDP" : "TCP"); vppcom_send_connect_sock (session, session_index); clib_spinlock_unlock (&vcm->sessions_lockp); + rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT, vcm->cfg.session_timeout); if (PREDICT_FALSE (rv)) { if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] connect timed out, rv = %s (%d)", - getpid (), vppcom_retval_str (rv), rv); - return rv; + clib_warning ("[%d] sid %u: connect failed! returning %d (%s)", + getpid (), session_index, rv, vppcom_retval_str (rv)); } - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid %d connected!", getpid (), session_index); + else if (VPPCOM_DEBUG > 0) + clib_warning ("[%d] sid %d: connected!", getpid (), session_index); - return VPPCOM_OK; +done: + return rv; } static inline int @@ -2573,44 +2563,46 @@ vppcom_session_read_internal (uint32_t session_index, void *buf, int n, int rv; char *fifo_str; u32 poll_et; + session_state_t state; + u8 is_server; + u8 is_nonblocking; ASSERT (buf); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot read from an epoll session!", + getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + is_server = session->is_server; + is_nonblocking = session->is_nonblocking; + state = session->state; + if (PREDICT_FALSE (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)))) { clib_spinlock_unlock (&vcm->sessions_lockp); + rv = ((state == STATE_DISCONNECT) ? + VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); + if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + clib_warning ("[%d] sid %u: %s session is not open! " + "state 0x%x (%s), returning %d (%s)", + getpid (), session_index, is_server ? + "server" : "client", state, + vppcom_session_state_str (state), + rv, vppcom_retval_str (rv)); + goto done; } - rx_fifo = ((!session->is_cut_thru || session->is_server) ? + rx_fifo = ((!session->is_cut_thru || is_server) ? session->server_rx_fifo : session->server_tx_fifo); - fifo_str = ((!session->is_cut_thru || session->is_server) ? + fifo_str = ((!session->is_cut_thru || is_server) ? "server_rx_fifo" : "server_tx_fifo"); - poll_et = - ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN); clib_spinlock_unlock (&vcm->sessions_lockp); do @@ -2620,20 +2612,55 @@ vppcom_session_read_internal (uint32_t session_index, void *buf, int n, else n_read = svm_fifo_dequeue_nowait (rx_fifo, n, buf); } - while (!session->is_nonblocking && (n_read <= 0)); + while (!is_nonblocking && (n_read <= 0)); - if (poll_et && (n_read <= 0)) + if (n_read <= 0) { - clib_spinlock_lock (&vcm->sessions_lockp); - session->vep.et_mask |= EPOLLIN; + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + poll_et = (((EPOLLET | EPOLLIN) & session->vep.ev.events) == + (EPOLLET | EPOLLIN)); + if (poll_et) + session->vep.et_mask |= EPOLLIN; + + if (state == STATE_CLOSE_ON_EMPTY) + { + session_state_t new_state = STATE_DISCONNECT; + rv = VPPCOM_ECONNRESET; + + if (VPPCOM_DEBUG > 1) + { + clib_warning ("[%d] sid %u: Empty fifo with %s session " + "state 0x%x (%s)!\n" + " Setting state to %d (%s), returning %d (%s)", + getpid (), session_index, + is_server ? "server" : "client", + state, vppcom_session_state_str (state), + new_state, vppcom_session_state_str (new_state), + rv, vppcom_retval_str (rv)); + } + + session->state = new_state; + } + else + rv = VPPCOM_EAGAIN; + clib_spinlock_unlock (&vcm->sessions_lockp); } + else + rv = n_read; - if ((VPPCOM_DEBUG > 2) && (n_read > 0)) - clib_warning ("[%d] sid %d, read %d bytes from %s (%p)", getpid (), - session_index, n_read, fifo_str, rx_fifo); - - return (n_read <= 0) ? VPPCOM_EAGAIN : n_read; + if (VPPCOM_DEBUG > 2) + { + if (rv > 0) + clib_warning ("[%d] sid %u: read %d bytes from %s (%p)", getpid (), + session_index, n_read, fifo_str, rx_fifo); + else + clib_warning ("[%d] sid %u: nothing read, returning %d (%s)", + getpid (), session_index, rv, vppcom_retval_str (rv)); + } +done: + return rv; } int @@ -2654,55 +2681,73 @@ vppcom_session_read_ready (session_t * session, u32 session_index) svm_fifo_t *rx_fifo = 0; int ready = 0; u32 poll_et; + int rv; + u8 is_server = session->is_server; + session_state_t state = session->state; /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (session->is_vep) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; - } - - if (session->state == STATE_DISCONNECT) + if (PREDICT_FALSE (session->is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + clib_warning ("[%d] ERROR: sid %u: cannot read from an " + "epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } if (session->is_listen) ready = clib_fifo_elts (vcm->client_session_index_fifo); else { - rx_fifo = ((!session->is_cut_thru || session->is_server) ? + if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN | STATE_LISTEN))) + { + rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET : + VPPCOM_ENOTCONN); + + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: %s session is not open! " + "state 0x%x (%s), returning %d (%s)", getpid (), + session_index, is_server ? "server" : "client", + state, vppcom_session_state_str (state), + rv, vppcom_retval_str (rv)); + goto done; + } + + rx_fifo = ((!session->is_cut_thru || is_server) ? session->server_rx_fifo : session->server_tx_fifo); ready = svm_fifo_max_dequeue (rx_fifo); } - poll_et = - ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN); - if (poll_et && (ready == 0)) + if (ready == 0) { - if (VPPCOM_DEBUG > 11) - clib_warning ("[%d] sid %d: current vep.et_mask = 0x%x", getpid (), - session_index, session->vep.et_mask); - session->vep.et_mask |= EPOLLIN; - if (VPPCOM_DEBUG > 11) - clib_warning ("[%d] sid %d: updated vep.et_mask = 0x%x", getpid (), - session_index, session->vep.et_mask); - } + poll_et = + ((EPOLLET | EPOLLIN) & session->vep.ev.events) == (EPOLLET | EPOLLIN); + if (poll_et) + session->vep.et_mask |= EPOLLIN; - if (session->vep.et_mask && (VPPCOM_DEBUG > 11)) - clib_warning ("[%d] sid %d, is_listen %u, peek %s (%p), ready = %d, " - "et_mask 0x%x", - getpid (), session_index, session->is_listen, - session->is_server ? "server_rx_fifo" : "server_tx_fifo", - rx_fifo, ready, session->vep.et_mask); - return ready; + if (state == STATE_CLOSE_ON_EMPTY) + { + rv = VPPCOM_ECONNRESET; + session_state_t new_state = STATE_DISCONNECT; + + if (VPPCOM_DEBUG > 1) + { + clib_warning ("[%d] sid %u: Empty fifo with %s session " + "state 0x%x (%s)!\n" + " Setting state to %d (%s), returning %d (%s)", + getpid (), session_index, + is_server ? "server" : "client", + state, vppcom_session_state_str (state), + new_state, vppcom_session_state_str (new_state), + rv, vppcom_retval_str (rv)); + } + session->state = new_state; + goto done; + } + } + rv = ready; +done: + return rv; } int @@ -2715,92 +2760,119 @@ vppcom_session_write (uint32_t session_index, void *buf, int n) int rv, n_write; char *fifo_str; u32 poll_et; + u8 is_server; + u8 is_nonblocking; + session_state_t state; ASSERT (buf); - clib_spinlock_lock (&vcm->sessions_lockp); - rv = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rv)) - { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rv; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot write to an epoll session!", + getpid (), session_index); + + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + is_server = session->is_server; + is_nonblocking = session->is_nonblocking; + state = session->state; + if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))) { + rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET : + VPPCOM_ENOTCONN); + clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: %s session is not open! state 0x%x (%s)", + getpid (), session_index, is_server ? + "server" : "client", state, + vppcom_session_state_str (state)); + goto done; } - tx_fifo = ((!session->is_cut_thru || session->is_server) ? + tx_fifo = ((!session->is_cut_thru || is_server) ? session->server_tx_fifo : session->server_rx_fifo); - fifo_str = ((!session->is_cut_thru || session->is_server) ? + fifo_str = ((!session->is_cut_thru || is_server) ? "server_tx_fifo" : "server_rx_fifo"); - q = session->vpp_event_queue; - poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == - (EPOLLET | EPOLLOUT)); clib_spinlock_unlock (&vcm->sessions_lockp); do { n_write = svm_fifo_enqueue_nowait (tx_fifo, n, buf); } - while (!session->is_nonblocking && (n_write <= 0)); + while (!is_nonblocking && (n_write <= 0)); /* If event wasn't set, add one */ if (!session->is_cut_thru && (n_write > 0) && svm_fifo_set_event (tx_fifo)) { - int rval; - /* Fabricate TX event, send to vpp */ evt.fifo = tx_fifo; evt.event_type = FIFO_EVENT_APP_TX; - rval = vppcom_session_at_index (session_index, &session); - if (PREDICT_FALSE (rval)) - { - if (VPPCOM_DEBUG > 1) - clib_warning ("[%d] invalid session, sid (%u) has been closed!", - getpid (), session_index); - return rval; - } + VCL_LOCK_AND_GET_SESSION (session_index, &session); + q = session->vpp_event_queue; ASSERT (q); unix_shared_memory_queue_add (q, (u8 *) & evt, 0 /* do wait for mutex */ ); + clib_spinlock_unlock (&vcm->sessions_lockp); + if (VPPCOM_DEBUG > 1) + clib_warning ("[%d] sid %u: added FIFO_EVENT_APP_TX to " + "vpp_event_q %p, n_write %d", getpid (), + session_index, q, n_write); } - if (poll_et && (n_write <= 0)) + if (n_write <= 0) { - clib_spinlock_lock (&vcm->sessions_lockp); - session->vep.et_mask |= EPOLLOUT; + VCL_LOCK_AND_GET_SESSION (session_index, &session); + + poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == + (EPOLLET | EPOLLOUT)); + if (poll_et) + session->vep.et_mask |= EPOLLOUT; + + if (state == STATE_CLOSE_ON_EMPTY) + { + session_state_t new_state = STATE_DISCONNECT; + rv = VPPCOM_ECONNRESET; + + if (VPPCOM_DEBUG > 1) + { + clib_warning ("[%d] sid %u: Empty fifo with %s session " + "state 0x%x (%s)!\n" + " Setting state to %d (%s), returning %d (%s)", + getpid (), session_index, + is_server ? "server" : "client", + state, vppcom_session_state_str (state), + new_state, vppcom_session_state_str (new_state), + rv, vppcom_retval_str (rv)); + } + + session->state = new_state; + } + else + rv = VPPCOM_EAGAIN; + clib_spinlock_unlock (&vcm->sessions_lockp); } + else + rv = n_write; if (VPPCOM_DEBUG > 2) { - if (n_write == -2) - clib_warning ("[%d] sid %d, FIFO-FULL %s (%p)", getpid (), + if (n_write <= 0) + clib_warning ("[%d] sid %u: FIFO-FULL %s (%p)", getpid (), session_index, fifo_str, tx_fifo); else - clib_warning ("[%d] sid %d, wrote %d bytes to %s (%p)", getpid (), + clib_warning ("[%d] sid %u: wrote %d bytes to %s (%p)", getpid (), session_index, n_write, fifo_str, tx_fifo); } - return (n_write < 0) ? VPPCOM_EAGAIN : n_write; +done: + return rv; } static inline int @@ -2810,23 +2882,40 @@ vppcom_session_write_ready (session_t * session, u32 session_index) char *fifo_str; int ready; u32 poll_et; + int rv; + u8 is_server = session->is_server; + session_state_t state = session->state; /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (session->is_vep) + if (PREDICT_FALSE (session->is_vep)) { - clib_spinlock_unlock (&vcm->sessions_lockp); - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] invalid session, sid (%u) is an epoll session!", - getpid (), session_index); - return VPPCOM_EBADFD; + clib_warning ("[%d] ERROR: sid %u: cannot write to an " + "epoll session!", getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; } - if (session->state == STATE_DISCONNECT) + if (PREDICT_FALSE (session->is_listen)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] sid (%u) has been closed by remote peer!", - getpid (), session_index); - return VPPCOM_ECONNRESET; + clib_warning ("[%d] ERROR: sid %u: cannot write to a listen session!", + getpid (), session_index); + rv = VPPCOM_EBADFD; + goto done; + } + + if (!(state & (SERVER_STATE_OPEN | CLIENT_STATE_OPEN))) + { + session_state_t state = session->state; + + rv = ((state == STATE_DISCONNECT) ? VPPCOM_ECONNRESET : + VPPCOM_ENOTCONN); + + clib_warning ("[%d] ERROR: sid %u: %s session is not open! " + "state 0x%x (%s), returning %d (%s)", getpid (), + session_index, is_server ? "server" : "client", + state, vppcom_session_state_str (state), + rv, vppcom_retval_str (rv)); + goto done; } tx_fifo = ((!session->is_cut_thru || session->is_server) ? @@ -2837,14 +2926,39 @@ vppcom_session_write_ready (session_t * session, u32 session_index) ready = svm_fifo_max_enqueue (tx_fifo); if (VPPCOM_DEBUG > 3) - clib_warning ("[%d] sid %d, peek %s (%p), ready = %d", getpid (), + clib_warning ("[%d] sid %u: peek %s (%p), ready = %d", getpid (), session_index, fifo_str, tx_fifo, ready); - poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == - (EPOLLET | EPOLLOUT)); - if (poll_et && (ready == 0)) - session->vep.et_mask |= EPOLLOUT; - return ready; + if (ready == 0) + { + poll_et = (((EPOLLET | EPOLLOUT) & session->vep.ev.events) == + (EPOLLET | EPOLLOUT)); + if (poll_et) + session->vep.et_mask |= EPOLLOUT; + + if (state == STATE_CLOSE_ON_EMPTY) + { + rv = VPPCOM_ECONNRESET; + session_state_t new_state = STATE_DISCONNECT; + + if (VPPCOM_DEBUG > 1) + { + clib_warning ("[%d] sid %u: Empty fifo with %s session " + "state 0x%x (%s)!\n" + " Setting state to %d (%s), returning %d (%s)", + getpid (), session_index, + is_server ? "server" : "client", + state, vppcom_session_state_str (state), + new_state, vppcom_session_state_str (new_state), + rv, vppcom_retval_str (rv)); + } + session->state = new_state; + goto done; + } + } + rv = ready; +done: + return rv; } int @@ -3008,59 +3122,57 @@ vep_verify_epoll_chain (u32 vep_idx) vep_idx); goto done; } + vep = &session->vep; clib_warning ("[%d] vep_idx (%u): Dumping epoll chain\n" "{\n" " is_vep = %u\n" " is_vep_session = %u\n" + " next_sid = 0x%x (%u)\n" " wait_cont_idx = 0x%x (%u)\n" - "}\n", getpid (), - vep_idx, session->is_vep, session->is_vep_session, + "}\n", getpid (), vep_idx, + session->is_vep, session->is_vep_session, + vep->next_sid, vep->next_sid, session->wait_cont_idx, session->wait_cont_idx); - do + + for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid) { + rv = vppcom_session_at_index (sid, &session); + if (PREDICT_FALSE (rv)) + { + clib_warning ("[%d] ERROR: Invalid sid (%u)!", getpid (), sid); + goto done; + } + if (PREDICT_FALSE (session->is_vep)) + clib_warning ("[%d] ERROR: sid (%u) is a vep!", getpid (), vep_idx); + else if (PREDICT_FALSE (!session->is_vep_session)) + { + clib_warning ("[%d] ERROR: session (%u) is not a vep session!", + getpid (), sid); + goto done; + } vep = &session->vep; - sid = vep->next_sid; - if (sid != ~0) + if (PREDICT_FALSE (vep->vep_idx != vep_idx)) + clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != " + "vep_idx (%u)!", getpid (), + sid, session->vep.vep_idx, vep_idx); + if (session->is_vep_session) { - rv = vppcom_session_at_index (sid, &session); - if (PREDICT_FALSE (rv)) - { - clib_warning ("[%d] ERROR: Invalid sid (%u)!", getpid (), sid); - goto done; - } - if (PREDICT_FALSE (session->is_vep)) - clib_warning ("[%d] ERROR: sid (%u) is a vep!", - getpid (), vep_idx); - else if (PREDICT_FALSE (!session->is_vep_session)) - { - clib_warning ("[%d] ERROR: session (%u) is not a vep session!", - getpid (), sid); - goto done; - } - if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) - clib_warning ("[%d] ERROR: session (%u) vep_idx (%u) != " - "vep_idx (%u)!", getpid (), - sid, session->vep.vep_idx, vep_idx); - if (session->is_vep_session) - { - clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n" - "{\n" - " next_sid = 0x%x (%u)\n" - " prev_sid = 0x%x (%u)\n" - " vep_idx = 0x%x (%u)\n" - " ev.events = 0x%x\n" - " ev.data.u64 = 0x%llx\n" - " et_mask = 0x%x\n" - "}\n", - vep_idx, sid, sid, - vep->next_sid, vep->next_sid, - vep->prev_sid, vep->prev_sid, - vep->vep_idx, vep->vep_idx, - vep->ev.events, vep->ev.data.u64, vep->et_mask); - } + clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n" + "{\n" + " next_sid = 0x%x (%u)\n" + " prev_sid = 0x%x (%u)\n" + " vep_idx = 0x%x (%u)\n" + " ev.events = 0x%x\n" + " ev.data.u64 = 0x%llx\n" + " et_mask = 0x%x\n" + "}\n", + vep_idx, sid, sid, + vep->next_sid, vep->next_sid, + vep->prev_sid, vep->prev_sid, + vep->vep_idx, vep->vep_idx, + vep->ev.events, vep->ev.data.u64, vep->et_mask); } } - while (sid != ~0); done: clib_warning ("[%d] vep_idx (%u): Dump complete!\n", getpid (), vep_idx); @@ -3082,6 +3194,7 @@ vppcom_epoll_create (void) vep_session->vep.next_sid = ~0; vep_session->vep.prev_sid = ~0; vep_session->wait_cont_idx = ~0; + vep_session->vpp_handle = ~0; clib_spinlock_unlock (&vcm->sessions_lockp); if (VPPCOM_DEBUG > 0) @@ -3100,9 +3213,8 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, if (vep_idx == session_index) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx == session_index (%u)!", - getpid (), vep_idx); + clib_warning ("[%d] ERROR: vep_idx == session_index (%u)!", + getpid (), vep_idx); return VPPCOM_EINVAL; } @@ -3110,15 +3222,13 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, rv = vppcom_session_at_index (vep_idx, &vep_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", vep_idx); + clib_warning ("[%d] ERROR: Invalid vep_idx (%u)!", vep_idx); goto done; } if (PREDICT_FALSE (!vep_session->is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", + getpid (), vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -3136,8 +3246,7 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, } if (PREDICT_FALSE (session->is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx); + clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -3159,10 +3268,9 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, &next_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: Invalid " - "vep.next_sid (%u) on vep_idx (%u)!", - getpid (), vep_session->vep.next_sid, vep_idx); + clib_warning ("[%d] ERROR: EPOLL_CTL_ADD: Invalid " + "vep.next_sid (%u) on vep_idx (%u)!", + getpid (), vep_session->vep.next_sid, vep_idx); goto done; } ASSERT (next_session->vep.prev_sid == vep_idx); @@ -3173,6 +3281,7 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, session->vep.vep_idx = vep_idx; session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; + session->is_vep = 0; session->is_vep_session = 1; vep_session->vep.next_sid = session_index; if (VPPCOM_DEBUG > 1) @@ -3189,21 +3298,19 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, rv = VPPCOM_EINVAL; goto done; } - if (PREDICT_FALSE (!session->is_vep_session && - (session->vep.vep_idx != vep_idx))) + else if (PREDICT_FALSE (!session->is_vep_session)) { - if (VPPCOM_DEBUG > 0) - { - if (!session->is_vep_session) - clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: session (%u) " - "is not a vep session!", - getpid (), session_index); - else - clib_warning ("[%d] ERROR: EPOLL_CTL_MOD: session (%u) " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); - } + clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: " + "not a vep session!", getpid (), session_index); + rv = VPPCOM_EINVAL; + goto done; + } + else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) + { + clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_MOD: " + "vep_idx (%u) != vep_idx (%u)!", + getpid (), session_index, + session->vep.vep_idx, vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -3216,21 +3323,19 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, break; case EPOLL_CTL_DEL: - if (PREDICT_FALSE (!session->is_vep_session && - (session->vep.vep_idx != vep_idx))) + if (PREDICT_FALSE (!session->is_vep_session)) { - if (VPPCOM_DEBUG > 0) - { - if (!session->is_vep_session) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: session (%u) " - "is not a vep session!", - getpid (), session_index); - else - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: session (%u) " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); - } + clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: " + "not a vep session!", getpid (), session_index); + rv = VPPCOM_EINVAL; + goto done; + } + else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) + { + clib_warning ("[%d] ERROR: sid %u EPOLL_CTL_DEL: " + "vep_idx (%u) != vep_idx (%u)!", + getpid (), session_index, + session->vep.vep_idx, vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -3247,11 +3352,9 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " - "vep.prev_sid (%u) on sid (%u)!", - getpid (), session->vep.prev_sid, - session_index); + clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " + "vep.prev_sid (%u) on sid (%u)!", + getpid (), session->vep.prev_sid, session_index); goto done; } ASSERT (prev_session->vep.next_sid == session_index); @@ -3263,11 +3366,9 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, rv = vppcom_session_at_index (session->vep.next_sid, &next_session); if (PREDICT_FALSE (rv)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " - "vep.next_sid (%u) on sid (%u)!", - getpid (), session->vep.next_sid, - session_index); + clib_warning ("[%d] ERROR: EPOLL_CTL_DEL: Invalid " + "vep.next_sid (%u) on sid (%u)!", + getpid (), session->vep.next_sid, session_index); goto done; } ASSERT (next_session->vep.prev_sid == session_index); @@ -3310,9 +3411,8 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, if (PREDICT_FALSE (maxevents <= 0)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: Invalid maxevents (%d)!", - getpid (), maxevents); + clib_warning ("[%d] ERROR: Invalid maxevents (%d)!", + getpid (), maxevents); return VPPCOM_EINVAL; } memset (events, 0, sizeof (*events) * maxevents); @@ -3325,9 +3425,8 @@ vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, if (PREDICT_FALSE (!is_vep)) { - if (VPPCOM_DEBUG > 0) - clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + clib_warning ("[%d] ERROR: vep_idx (%u) is not a vep!", + getpid (), vep_idx); rv = VPPCOM_EINVAL; goto done; } @@ -3506,7 +3605,6 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, if (VPPCOM_DEBUG > 2) clib_warning ("[%d] VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", getpid (), rv); - break; case VPPCOM_ATTR_GET_NWRITE: @@ -3514,7 +3612,6 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, if (VPPCOM_DEBUG > 2) clib_warning ("[%d] VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d", getpid (), session_index, rv); - break; case VPPCOM_ATTR_GET_FLAGS: @@ -3538,7 +3635,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, if (VPPCOM_DEBUG > 2) clib_warning ("[%d] VPPCOM_ATTR_SET_FLAGS: sid %u, " "flags = 0x%08x, is_nonblocking = %u", - getpid (), *flags, session->is_nonblocking); + getpid (), session_index, *flags, + session->is_nonblocking); } else rv = VPPCOM_EINVAL; diff --git a/src/vcl/vppcom.h b/src/vcl/vppcom.h index 45ff11608e7..55710b782ee 100644 --- a/src/vcl/vppcom.h +++ b/src/vcl/vppcom.h @@ -65,6 +65,7 @@ typedef enum VPPCOM_EBADFD = -EBADFD, VPPCOM_EAFNOSUPPORT = -EAFNOSUPPORT, VPPCOM_ECONNRESET = -ECONNRESET, + VPPCOM_ENOTCONN = -ENOTCONN, VPPCOM_ECONNREFUSED = -ECONNREFUSED, VPPCOM_ETIMEDOUT = -ETIMEDOUT, } vppcom_error_t; @@ -123,6 +124,10 @@ vppcom_retval_str (int retval) st = "VPPCOM_ECONNRESET"; break; + case VPPCOM_ENOTCONN: + st = "VPPCOM_ENOTCONN"; + break; + case VPPCOM_ECONNREFUSED: st = "VPPCOM_ECONNREFUSED"; break; |