diff options
Diffstat (limited to 'src/vcl')
| -rw-r--r-- | src/vcl/vcl_bapi.c | 731 | ||||
| -rw-r--r-- | src/vcl/vcl_cfg.c | 610 | ||||
| -rw-r--r-- | src/vcl/vcl_event.c | 380 | ||||
| -rw-r--r-- | src/vcl/vcl_private.h | 337 | ||||
| -rw-r--r-- | src/vcl/vppcom.c | 1970 |
5 files changed, 2077 insertions, 1951 deletions
diff --git a/src/vcl/vcl_bapi.c b/src/vcl/vcl_bapi.c new file mode 100644 index 00000000000..cc3179d860a --- /dev/null +++ b/src/vcl/vcl_bapi.c @@ -0,0 +1,731 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vcl/vcl_private.h> +#include <vlibmemory/api.h> +#include <vpp/api/vpe_msg_enum.h> + +#define vl_typedefs /* define message structures */ +#include <vpp/api/vpe_all_api_h.h> +#undef vl_typedefs + +/* declare message handlers for each api */ + +#define vl_endianfun /* define message structures */ +#include <vpp/api/vpe_all_api_h.h> +#undef vl_endianfun + +/* instantiate all the print functions we know about */ +#define vl_print(handle, ...) +#define vl_printfun +#include <vpp/api/vpe_all_api_h.h> +#undef vl_printfun + +static u8 * +format_api_error (u8 * s, va_list * args) +{ + i32 error = va_arg (*args, u32); + uword *p; + + p = hash_get (vcm->error_string_by_error_number, -error); + + if (p) + s = format (s, "%s (%d)", p[0], error); + else + s = format (s, "%d", error); + return s; +} + +static void + vl_api_session_enable_disable_reply_t_handler + (vl_api_session_enable_disable_reply_t * mp) +{ + if (mp->retval) + { + clib_warning ("VCL<%d>: session_enable_disable failed: %U", getpid (), + format_api_error, ntohl (mp->retval)); + } + else + vcm->app_state = STATE_APP_ENABLED; +} + +static void +vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t * + mp) +{ + static svm_fifo_segment_create_args_t _a; + svm_fifo_segment_create_args_t *a = &_a; + int rv; + + memset (a, 0, sizeof (*a)); + if (mp->retval) + { + clib_warning ("VCL<%d>: attach failed: %U", getpid (), + format_api_error, ntohl (mp->retval)); + return; + } + + if (mp->segment_name_length == 0) + { + clib_warning ("VCL<%d>: segment_name_length zero", getpid ()); + return; + } + + a->segment_name = (char *) mp->segment_name; + a->segment_size = mp->segment_size; + + ASSERT (mp->app_event_queue_address); + + /* Attach to the segment vpp created */ + rv = svm_fifo_segment_attach (a); + vec_reset_length (a->new_segment_indices); + if (PREDICT_FALSE (rv)) + { + clib_warning ("VCL<%d>: svm_fifo_segment_attach ('%s') failed", + getpid (), mp->segment_name); + return; + } + + vcm->app_event_queue = + uword_to_pointer (mp->app_event_queue_address, svm_queue_t *); + + vcm->app_state = STATE_APP_ATTACHED; +} + +static void +vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t * + mp) +{ + if (mp->retval) + clib_warning ("VCL<%d>: detach failed: %U", getpid (), format_api_error, + ntohl (mp->retval)); + + vcm->app_state = STATE_APP_ENABLED; +} + +static void +vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * + mp) +{ + if (mp->retval) + clib_warning ("VCL<%d>: vpp handle 0x%llx: disconnect session failed: %U", + getpid (), mp->handle, format_api_error, + ntohl (mp->retval)); +} + +static void +vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) +{ + static svm_fifo_segment_create_args_t _a; + svm_fifo_segment_create_args_t *a = &_a; + int rv; + + memset (a, 0, sizeof (*a)); + a->segment_name = (char *) mp->segment_name; + a->segment_size = mp->segment_size; + /* Attach to the segment vpp created */ + rv = svm_fifo_segment_attach (a); + vec_reset_length (a->new_segment_indices); + if (PREDICT_FALSE (rv)) + { + clib_warning ("VCL<%d>: svm_fifo_segment_attach ('%s') failed", + getpid (), mp->segment_name); + return; + } + + VDBG (1, "VCL<%d>: mapped new segment '%s' size %d", getpid (), + mp->segment_name, mp->segment_size); +} + +static void +vl_api_unmap_segment_t_handler (vl_api_unmap_segment_t * mp) +{ + +/* + * XXX Need segment_name to session_id hash, + * XXX - have sessionID by handle hash currently + */ + + VDBG (1, "Unmapped segment '%s'", mp->segment_name); +} + +static void +vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) +{ + uword *p; + + p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); + if (p) + { + int rv; + vcl_session_t *session = 0; + u32 session_index = p[0]; + + VCL_SESSION_LOCK_AND_GET (session_index, &session); + session->session_state = STATE_CLOSE_ON_EMPTY; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: setting state to 0x%x " + "(%s)", getpid (), mp->handle, session_index, + session->session_state, + vppcom_session_state_str (session->session_state)); + VCL_SESSION_UNLOCK (); + return; + + done: + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session lookup failed!", + getpid (), mp->handle, session_index); + } + else + clib_warning ("VCL<%d>: vpp handle 0x%llx: session lookup by " + "handle failed!", getpid (), mp->handle); +} + +static void +vl_api_reset_session_t_handler (vl_api_reset_session_t * mp) +{ + vcl_session_t *session = 0; + vl_api_reset_session_reply_t *rmp; + uword *p; + int rv = 0; + + p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); + if (p) + { + int rval; + VCL_SESSION_LOCK (); + rval = vppcom_session_at_index (p[0], &session); + if (PREDICT_FALSE (rval)) + { + rv = VNET_API_ERROR_INVALID_VALUE_2; + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "session lookup failed! returning %d %U", + getpid (), mp->handle, p[0], + rv, format_api_error, rv); + } + else + { + /* TBD: should this disconnect immediately and + * flush the fifos? + */ + session->session_state = STATE_CLOSE_ON_EMPTY; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: state set to %d " + "(%s)!", getpid (), mp->handle, p[0], session->session_state, + vppcom_session_state_str (session->session_state)); + } + VCL_SESSION_UNLOCK (); + } + else + { + rv = VNET_API_ERROR_INVALID_VALUE; + clib_warning ("VCL<%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)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY); + rmp->retval = htonl (rv); + rmp->handle = mp->handle; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); +} + +static void +vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp) +{ + vcl_session_t *session = 0; + u32 session_index; + svm_fifo_t *rx_fifo, *tx_fifo; + int rv = VPPCOM_OK; + + session_index = mp->context; + VCL_SESSION_LOCK_AND_GET (session_index, &session); +done: + if (mp->retval) + { + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " + "connect failed! %U", + getpid (), mp->handle, session_index, + format_api_error, ntohl (mp->retval)); + if (session) + { + session->session_state = STATE_FAILED; + session->vpp_handle = mp->handle; + } + else + { + clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " + "Invalid session index (%u)!", + getpid (), mp->handle, session_index); + } + goto done_unlock; + } + + if (rv) + goto done_unlock; + + /* + * Setup session + */ + if (vcm->session_io_thread.io_sessions_lockp) + { + // Add this connection to the active io sessions list + VCL_IO_SESSIONS_LOCK (); + u32 *active_session_index; + pool_get (vcm->session_io_thread.active_session_indexes, + active_session_index); + *active_session_index = session_index; + VCL_IO_SESSIONS_UNLOCK (); + } + session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, + svm_queue_t *); + + rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); + rx_fifo->client_session_index = session_index; + tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); + tx_fifo->client_session_index = session_index; + + session->rx_fifo = rx_fifo; + session->tx_fifo = tx_fifo; + session->vpp_handle = mp->handle; + session->transport.is_ip4 = mp->is_ip4; + clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip, + sizeof (session->transport.rmt_ip)); + session->transport.lcl_port = mp->lcl_port; + session->session_state = STATE_CONNECT; + + /* Add it to lookup table */ + hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! " + "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d", + getpid (), mp->handle, session_index, session->rx_fifo, + session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt); +done_unlock: + VCL_SESSION_UNLOCK (); +} + +static void +vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) +{ + vcl_session_t *session = 0; + u32 session_index = mp->context; + int rv; + + VCL_SESSION_LOCK_AND_GET (session_index, &session); +done: + if (mp->retval) + { + clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, " + "sid %u: bind failed: %U", + getpid (), mp->handle, session_index, + format_api_error, ntohl (mp->retval)); + rv = vppcom_session_at_index (session_index, &session); + if (rv == VPPCOM_OK) + { + session->session_state = STATE_FAILED; + session->vpp_handle = mp->handle; + } + else + { + clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " + "Invalid session index (%u)!", + getpid (), mp->handle, session_index); + } + goto done_unlock; + } + + session->vpp_handle = mp->handle; + session->transport.is_ip4 = mp->lcl_is_ip4; + session->transport.lcl_ip = to_ip46 (mp->lcl_is_ip4 ? IP46_TYPE_IP4 : + IP46_TYPE_IP6, mp->lcl_ip); + session->transport.lcl_port = mp->lcl_port; + vppcom_session_table_add_listener (mp->handle, session_index); + session->session_state = STATE_LISTEN; + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!", + getpid (), mp->handle, mp->context); +done_unlock: + VCL_SESSION_UNLOCK (); +} + +static void +vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp) +{ + if (mp->retval) + clib_warning ("VCL<%d>: ERROR: sid %u: unbind failed: %U", + getpid (), mp->context, format_api_error, + ntohl (mp->retval)); + + else + VDBG (1, "VCL<%d>: sid %u: unbind succeeded!", getpid (), mp->context); +} + +static void +vl_api_accept_session_t_handler (vl_api_accept_session_t * mp) +{ + svm_fifo_t *rx_fifo, *tx_fifo; + vcl_session_t *session, *listen_session; + u32 session_index; + vce_event_connect_request_t *ecr; + vce_event_t *ev; + int rv; + u32 ev_idx; + uword elts = 0; + + VCL_SESSION_LOCK (); + + VCL_ACCEPT_FIFO_LOCK (); + elts = clib_fifo_free_elts (vcm->client_session_index_fifo); + VCL_ACCEPT_FIFO_UNLOCK (); + + if (!elts) + { + clib_warning ("VCL<%d>: client session queue is full!", getpid ()); + vppcom_send_accept_session_reply (mp->handle, mp->context, + VNET_API_ERROR_QUEUE_FULL); + VCL_SESSION_UNLOCK (); + return; + } + + listen_session = vppcom_session_table_lookup_listener (mp->listener_handle); + if (!listen_session) + { + clib_warning ("VCL<%d>: ERROR: couldn't find listen session: " + "unknown vpp listener handle %llx", + getpid (), mp->listener_handle); + vppcom_send_accept_session_reply (mp->handle, mp->context, + VNET_API_ERROR_INVALID_ARGUMENT); + VCL_SESSION_UNLOCK (); + return; + } + + /* TODO check listener depth and update */ + /* TODO on "child" fd close, update listener depth */ + + /* Allocate local session and set it up */ + pool_get (vcm->sessions, session); + memset (session, 0, sizeof (*session)); + session_index = (u32) (session - vcm->sessions); + + rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); + rx_fifo->client_session_index = session_index; + tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); + tx_fifo->client_session_index = session_index; + + session->vpp_handle = mp->handle; + session->client_context = mp->context; + session->rx_fifo = rx_fifo; + session->tx_fifo = tx_fifo; + session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, + svm_queue_t *); + session->session_state = STATE_ACCEPT; + session->transport.rmt_port = mp->port; + session->transport.is_ip4 = mp->is_ip4; + session->transport.rmt_ip = to_ip46 (mp->is_ip4 ? IP46_TYPE_IP4 : + IP46_TYPE_IP6, mp->ip); + + /* Add it to lookup table */ + hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); + session->transport.lcl_port = listen_session->transport.lcl_port; + session->transport.lcl_ip = listen_session->transport.lcl_ip; + + /* Create an event for handlers */ + + VCL_EVENTS_LOCK (); + + pool_get (vcm->event_thread.vce_events, ev); + ev_idx = (u32) (ev - vcm->event_thread.vce_events); + ecr = vce_get_event_data (ev, sizeof (*ecr)); + ev->evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; + listen_session = vppcom_session_table_lookup_listener (mp->listener_handle); + ev->evk.session_index = (u32) (listen_session - vcm->sessions); + ecr->accepted_session_index = session_index; + + VCL_EVENTS_UNLOCK (); + + rv = vce_generate_event (&vcm->event_thread, ev_idx); + ASSERT (rv == 0); + + VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s" + " address %U port %d queue %p!", getpid (), mp->handle, session_index, + mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip, + mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (mp->port), session->vpp_evt_q); + + vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index); + VCL_SESSION_UNLOCK (); +} + +#define foreach_sock_msg \ +_(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \ +_(BIND_SOCK_REPLY, bind_sock_reply) \ +_(UNBIND_SOCK_REPLY, unbind_sock_reply) \ +_(ACCEPT_SESSION, accept_session) \ +_(CONNECT_SESSION_REPLY, connect_session_reply) \ +_(DISCONNECT_SESSION, disconnect_session) \ +_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \ +_(RESET_SESSION, reset_session) \ +_(APPLICATION_ATTACH_REPLY, application_attach_reply) \ +_(APPLICATION_DETACH_REPLY, application_detach_reply) \ +_(MAP_ANOTHER_SEGMENT, map_another_segment) \ +_(UNMAP_SEGMENT, unmap_segment) + +void +vppcom_api_hookup (void) +{ +#define _(N, n) \ + vl_msg_api_set_handlers(VL_API_##N, #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_sock_msg; +#undef _ +} + +/* + * VPP-API message functions + */ +void +vppcom_send_session_enable_disable (u8 is_enable) +{ + vl_api_session_enable_disable_t *bmp; + bmp = vl_msg_api_alloc (sizeof (*bmp)); + memset (bmp, 0, sizeof (*bmp)); + + bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE); + bmp->client_index = vcm->my_client_index; + bmp->context = htonl (0xfeedface); + bmp->is_enable = is_enable; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); +} + +void +vppcom_app_send_attach (void) +{ + vl_api_application_attach_t *bmp; + u8 nsid_len = vec_len (vcm->cfg.namespace_id); + u8 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp || + vcm->cfg.app_proxy_transport_udp); + + bmp = vl_msg_api_alloc (sizeof (*bmp)); + memset (bmp, 0, sizeof (*bmp)); + + bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH); + bmp->client_index = vcm->my_client_index; + bmp->context = htonl (0xfeedface); + bmp->options[APP_OPTIONS_FLAGS] = + APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT | + (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) | + (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) | + (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0); + bmp->options[APP_OPTIONS_PROXY_TRANSPORT] = + (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) | + (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0)); + bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size; + bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size; + bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size; + bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size; + bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = + vcm->cfg.preallocated_fifo_pairs; + bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size; + if (nsid_len) + { + bmp->namespace_id_len = nsid_len; + clib_memcpy (bmp->namespace_id, vcm->cfg.namespace_id, nsid_len); + bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret; + } + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); +} + +void +vppcom_app_send_detach (void) +{ + vl_api_application_detach_t *bmp; + bmp = vl_msg_api_alloc (sizeof (*bmp)); + memset (bmp, 0, sizeof (*bmp)); + + bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH); + bmp->client_index = vcm->my_client_index; + bmp->context = htonl (0xfeedface); + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); +} + +void +vppcom_send_connect_sock (vcl_session_t * session, u32 session_index) +{ + vl_api_connect_sock_t *cmp; + + /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */ + cmp = vl_msg_api_alloc (sizeof (*cmp)); + memset (cmp, 0, sizeof (*cmp)); + cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK); + cmp->client_index = vcm->my_client_index; + cmp->context = session_index; + + cmp->is_ip4 = session->transport.is_ip4; + clib_memcpy (cmp->ip, &session->transport.rmt_ip, sizeof (cmp->ip)); + cmp->port = session->transport.rmt_port; + cmp->proto = session->session_type; + clib_memcpy (cmp->options, session->options, sizeof (cmp->options)); + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp); +} + +void +vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index, + int rv) +{ + vl_api_disconnect_session_reply_t *rmp; + + VDBG (1, "VCL<%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); +} + +void +vppcom_send_disconnect_session (u64 vpp_handle, u32 session_index) +{ + vl_api_disconnect_session_t *dmp; + + VDBG (1, "VCL<%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 = vpp_handle; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp); +} + +/* VPP combines bind and listen as one operation. VCL manages the separation + * of bind and listen locally via vppcom_session_bind() and + * vppcom_session_listen() */ +void +vppcom_send_bind_sock (vcl_session_t * session, u32 session_index) +{ + vl_api_bind_sock_t *bmp; + + /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ + bmp = vl_msg_api_alloc (sizeof (*bmp)); + memset (bmp, 0, sizeof (*bmp)); + + bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK); + bmp->client_index = vcm->my_client_index; + bmp->context = session_index; + bmp->is_ip4 = session->transport.is_ip4; + clib_memcpy (bmp->ip, &session->transport.lcl_ip, sizeof (bmp->ip)); + bmp->port = session->transport.lcl_port; + bmp->proto = session->session_type; + clib_memcpy (bmp->options, session->options, sizeof (bmp->options)); + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); +} + +void +vppcom_send_unbind_sock (u64 vpp_handle) +{ + vl_api_unbind_sock_t *ump; + + 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 = vpp_handle; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump); +} + +void +vppcom_send_accept_session_reply (u64 handle, u32 context, int retval) +{ + vl_api_accept_session_reply_t *rmp; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY); + rmp->retval = htonl (retval); + rmp->context = context; + rmp->handle = handle; + vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); +} + +u32 +vcl_max_nsid_len (void) +{ + vl_api_application_attach_t *mp; + return (sizeof (mp->namespace_id) - 1); +} + +void +vppcom_init_error_string_table (void) +{ + vcm->error_string_by_error_number = hash_create (0, sizeof (uword)); + +#define _(n, v, s) hash_set (vcm->error_string_by_error_number, -v, s); + foreach_vnet_api_error; +#undef _ + + hash_set (vcm->error_string_by_error_number, 99, "Misc"); +} + +int +vppcom_connect_to_vpp (char *app_name) +{ + api_main_t *am = &api_main; + vppcom_cfg_t *vcl_cfg = &vcm->cfg; + int rv = VPPCOM_OK; + + if (!vcl_cfg->vpp_api_filename) + vcl_cfg->vpp_api_filename = format (0, "/vpe-api%c", 0); + + VDBG (0, "VCL<%d>: app (%s) connecting to VPP api (%s)...", + getpid (), app_name, vcl_cfg->vpp_api_filename); + + if (vl_client_connect_to_vlib ((char *) vcl_cfg->vpp_api_filename, app_name, + vcm->cfg.vpp_api_q_length) < 0) + { + clib_warning ("VCL<%d>: app (%s) connect failed!", getpid (), app_name); + rv = VPPCOM_ECONNREFUSED; + } + else + { + vcm->vl_input_queue = am->shmem_hdr->vl_input_queue; + vcm->my_client_index = (u32) am->my_client_index; + vcm->app_state = STATE_APP_CONN_VPP; + + VDBG (0, "VCL<%d>: app (%s) is connected to VPP!", getpid (), app_name); + } + + vcl_evt (VCL_EVT_INIT, vcm); + return rv; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vcl/vcl_cfg.c b/src/vcl/vcl_cfg.c new file mode 100644 index 00000000000..338a6fa6165 --- /dev/null +++ b/src/vcl/vcl_cfg.c @@ -0,0 +1,610 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vcl/vcl_private.h> + +/* NOTE: _vppcom_main is only used until the heap is allocated. + * Do not access it directly -- use vcm which will point to + * the heap allocated copy after init. + */ +static vppcom_main_t _vppcom_main = { + .debug = VPPCOM_DEBUG_INIT, + .my_client_index = ~0 +}; + +vppcom_main_t *vcm = &_vppcom_main; + +void +vppcom_cfg_init (vppcom_cfg_t * vcl_cfg) +{ + char *env_var_str; + + ASSERT (vcl_cfg); + + vcl_cfg->heapsize = (256ULL << 20); + vcl_cfg->vpp_api_q_length = 1024; + vcl_cfg->segment_baseva = 0x200000000ULL; + vcl_cfg->segment_size = (256 << 20); + vcl_cfg->add_segment_size = (128 << 20); + vcl_cfg->preallocated_fifo_pairs = 8; + vcl_cfg->rx_fifo_size = (1 << 20); + vcl_cfg->tx_fifo_size = (1 << 20); + vcl_cfg->event_queue_size = 2048; + vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32); + vcl_cfg->app_timeout = 10 * 60.0; + vcl_cfg->session_timeout = 10 * 60.0; + vcl_cfg->accept_timeout = 60.0; + vcl_cfg->event_ring_size = (128 << 10); + vcl_cfg->event_log_path = "/dev/shm"; + + env_var_str = getenv (VPPCOM_ENV_DEBUG); + if (env_var_str) + { + u32 tmp; + if (sscanf (env_var_str, "%u", &tmp) != 1) + clib_warning ("VCL<%d>: WARNING: Invalid debug level specified in the" + " environment variable " VPPCOM_ENV_DEBUG " (%s)!\n", + getpid (), env_var_str); + else + { + vcm->debug = tmp; + VDBG (0, "VCL<%d>: configured VCL debug level (%u) from " + VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug); + } + } +} + +void +vppcom_cfg_heapsize (char *conf_fname) +{ + vppcom_cfg_t *vcl_cfg = &vcm->cfg; + FILE *fp; + char inbuf[4096]; + int argc = 1; + char **argv = NULL; + char *arg = NULL; + char *p; + int i; + u8 *sizep; + u32 size; + void *vcl_mem; + void *heap; + + fp = fopen (conf_fname, "r"); + if (fp == NULL) + { + VDBG (0, "VCL<%d>: using default heapsize %lld (0x%llx)", getpid (), + vcl_cfg->heapsize, vcl_cfg->heapsize); + goto defaulted; + } + + argv = calloc (1, sizeof (char *)); + if (argv == NULL) + { + VDBG (0, "VCL<%d>: calloc failed, using default heapsize %lld (0x%llx)", + getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); + goto defaulted; + } + + while (1) + { + if (fgets (inbuf, 4096, fp) == 0) + break; + p = strtok (inbuf, " \t\n"); + while (p != NULL) + { + if (*p == '#') + break; + argc++; + char **tmp = realloc (argv, argc * sizeof (char *)); + if (tmp == NULL) + { + VDBG (0, "VCL<%d>: realloc failed, using default heapsize %lld " + "(0x%llx)", getpid (), vcl_cfg->heapsize, + vcl_cfg->heapsize); + goto defaulted; + } + argv = tmp; + arg = strndup (p, 1024); + if (arg == NULL) + { + VDBG (0, "VCL<%d>: strndup failed, using default heapsize %lld " + "(0x%llx)", getpid (), vcl_cfg->heapsize, + vcl_cfg->heapsize); + goto defaulted; + } + argv[argc - 1] = arg; + p = strtok (NULL, " \t\n"); + } + } + + fclose (fp); + fp = NULL; + + char **tmp = realloc (argv, (argc + 1) * sizeof (char *)); + if (tmp == NULL) + { + VDBG (0, "VCL<%d>: realloc failed, using default heapsize %lld " + "(0x%llx)", getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); + goto defaulted; + } + argv = tmp; + argv[argc] = NULL; + + /* + * Look for and parse the "heapsize" config parameter. + * Manual since none of the clib infra has been bootstrapped yet. + * + * Format: heapsize <nn>[mM][gG] + */ + + for (i = 1; i < (argc - 1); i++) + { + if (!strncmp (argv[i], "heapsize", 8)) + { + sizep = (u8 *) argv[i + 1]; + size = 0; + while (*sizep >= '0' && *sizep <= '9') + { + size *= 10; + size += *sizep++ - '0'; + } + if (size == 0) + { + VDBG (0, "VCL<%d>: parse error '%s %s', using default " + "heapsize %lld (0x%llx)", getpid (), argv[i], argv[i + 1], + vcl_cfg->heapsize, vcl_cfg->heapsize); + goto defaulted; + } + + if (*sizep == 'g' || *sizep == 'G') + vcl_cfg->heapsize = size << 30; + else if (*sizep == 'm' || *sizep == 'M') + vcl_cfg->heapsize = size << 20; + else + { + VDBG (0, "VCL<%d>: parse error '%s %s', using default " + "heapsize %lld (0x%llx)", getpid (), argv[i], argv[i + 1], + vcl_cfg->heapsize, vcl_cfg->heapsize); + goto defaulted; + } + } + } + +defaulted: + if (fp != NULL) + fclose (fp); + if (argv != NULL) + free (argv); + + vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE, + MAP_SHARED | MAP_ANONYMOUS, -1, 0); + if (vcl_mem == MAP_FAILED) + { + clib_unix_error ("VCL<%d>: ERROR: mmap(0, %lld == 0x%llx, " + "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, " + "-1, 0) failed!", + getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); + ASSERT (vcl_mem != MAP_FAILED); + return; + } + heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize); + if (!heap) + { + clib_warning ("VCL<%d>: ERROR: clib_mem_init() failed!", getpid ()); + ASSERT (heap); + return; + } + vcl_mem = clib_mem_alloc (sizeof (_vppcom_main)); + if (!vcl_mem) + { + clib_warning ("VCL<%d>: ERROR: clib_mem_alloc() failed!", getpid ()); + ASSERT (vcl_mem); + return; + } + + clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main)); + vcm = vcl_mem; + + VDBG (0, "VCL<%d>: allocated VCL heap = %p, size %lld (0x%llx)", getpid (), + heap, vcl_cfg->heapsize, vcl_cfg->heapsize); +} + +void +vppcom_cfg_read_file (char *conf_fname) +{ + vppcom_cfg_t *vcl_cfg = &vcm->cfg; + int fd; + unformat_input_t _input, *input = &_input; + unformat_input_t _line_input, *line_input = &_line_input; + u8 vc_cfg_input = 0; + u8 *chroot_path; + struct stat s; + u32 uid, gid, q_len; + + fd = open (conf_fname, O_RDONLY); + if (fd < 0) + { + VDBG (0, "VCL<%d>: using default configuration.", getpid (), + conf_fname); + goto file_done; + } + + if (fstat (fd, &s) < 0) + { + VDBG (0, "VCL<%d>: failed to stat `%s', using default configuration", + getpid (), conf_fname); + goto file_done; + } + + if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode))) + { + VDBG (0, "VCL<%d>: not a regular file `%s', using default " + "configuration", getpid (), conf_fname); + goto file_done; + } + + unformat_init_clib_file (input, fd); + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + (void) unformat_user (input, unformat_line_input, line_input); + unformat_skip_white_space (line_input); + + if (unformat (line_input, "vcl {")) + { + vc_cfg_input = 1; + continue; + } + + if (vc_cfg_input) + { + if (unformat (line_input, "heapsize %s", &chroot_path)) + { + vec_terminate_c_string (chroot_path); + VDBG (0, "VCL<%d>: configured heapsize %s, actual heapsize %lld" + " (0x%llx)", getpid (), chroot_path, vcl_cfg->heapsize, + vcl_cfg->heapsize); + vec_free (chroot_path); + } + else if (unformat (line_input, "api-prefix %s", &chroot_path)) + { + vec_terminate_c_string (chroot_path); + if (vcl_cfg->vpp_api_filename) + vec_free (vcl_cfg->vpp_api_filename); + vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c", + chroot_path, 0); + vl_set_memory_root_path ((char *) chroot_path); + + VDBG (0, "VCL<%d>: configured api-prefix (%s) and api filename" + " (%s)", getpid (), chroot_path, + vcl_cfg->vpp_api_filename); + chroot_path = 0; /* Don't vec_free() it! */ + } + else if (unformat (line_input, "vpp-api-q-length %d", &q_len)) + { + if (q_len < vcl_cfg->vpp_api_q_length) + { + clib_warning ("VCL<%d>: ERROR: configured vpp-api-q-length " + "(%u) is too small! Using default: %u ", + getpid (), q_len, vcl_cfg->vpp_api_q_length); + } + else + { + vcl_cfg->vpp_api_q_length = q_len; + + VDBG (0, "VCL<%d>: configured vpp-api-q-length %u", + getpid (), vcl_cfg->vpp_api_q_length); + } + } + else if (unformat (line_input, "uid %d", &uid)) + { + vl_set_memory_uid (uid); + VDBG (0, "VCL<%d>: configured uid %d", getpid (), uid); + } + else if (unformat (line_input, "gid %d", &gid)) + { + vl_set_memory_gid (gid); + VDBG (0, "VCL<%d>: configured gid %d", getpid (), gid); + } + else if (unformat (line_input, "segment-baseva 0x%lx", + &vcl_cfg->segment_baseva)) + { + VDBG (0, "VCL<%d>: configured segment_baseva 0x%lx", getpid (), + vcl_cfg->segment_baseva); + } + else if (unformat (line_input, "segment-size 0x%lx", + &vcl_cfg->segment_size)) + { + VDBG (0, "VCL<%d>: configured segment_size 0x%lx (%ld)", + getpid (), vcl_cfg->segment_size, vcl_cfg->segment_size); + } + else if (unformat (line_input, "segment-size %ld", + &vcl_cfg->segment_size)) + { + VDBG (0, "VCL<%d>: configured segment_size %ld (0x%lx)", + getpid (), vcl_cfg->segment_size, vcl_cfg->segment_size); + } + else if (unformat (line_input, "add-segment-size 0x%lx", + &vcl_cfg->add_segment_size)) + { + VDBG (0, "VCL<%d>: configured add_segment_size 0x%lx (%ld)", + getpid (), vcl_cfg->add_segment_size, + vcl_cfg->add_segment_size); + } + else if (unformat (line_input, "add-segment-size %ld", + &vcl_cfg->add_segment_size)) + { + VDBG (0, "VCL<%d>: configured add_segment_size %ld (0x%lx)", + getpid (), vcl_cfg->add_segment_size, + vcl_cfg->add_segment_size); + } + else if (unformat (line_input, "preallocated-fifo-pairs %d", + &vcl_cfg->preallocated_fifo_pairs)) + { + VDBG (0, "VCL<%d>: configured preallocated_fifo_pairs %d " + "(0x%x)", getpid (), vcl_cfg->preallocated_fifo_pairs, + vcl_cfg->preallocated_fifo_pairs); + } + else if (unformat (line_input, "rx-fifo-size 0x%lx", + &vcl_cfg->rx_fifo_size)) + { + VDBG (0, "VCL<%d>: configured rx_fifo_size 0x%lx (%ld)", + getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); + } + else if (unformat (line_input, "rx-fifo-size %ld", + &vcl_cfg->rx_fifo_size)) + { + VDBG (0, "VCL<%d>: configured rx_fifo_size %ld (0x%lx)", + getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); + } + else if (unformat (line_input, "tx-fifo-size 0x%lx", + &vcl_cfg->tx_fifo_size)) + { + VDBG (0, "VCL<%d>: configured tx_fifo_size 0x%lx (%ld)", + getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); + } + else if (unformat (line_input, "tx-fifo-size %ld", + &vcl_cfg->tx_fifo_size)) + { + VDBG (0, "VCL<%d>: configured tx_fifo_size %ld (0x%lx)", + getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); + } + else if (unformat (line_input, "event-queue-size 0x%lx", + &vcl_cfg->event_queue_size)) + { + VDBG (0, "VCL<%d>: configured event_queue_size 0x%lx (%ld)", + getpid (), vcl_cfg->event_queue_size, + vcl_cfg->event_queue_size); + } + else if (unformat (line_input, "event-queue-size %ld", + &vcl_cfg->event_queue_size)) + { + VDBG (0, "VCL<%d>: configured event_queue_size %ld (0x%lx)", + getpid (), vcl_cfg->event_queue_size, + vcl_cfg->event_queue_size); + } + else if (unformat (line_input, "listen-queue-size 0x%lx", + &vcl_cfg->listen_queue_size)) + { + VDBG (0, "VCL<%d>: configured listen_queue_size 0x%lx (%ld)", + getpid (), vcl_cfg->listen_queue_size, + vcl_cfg->listen_queue_size); + } + else if (unformat (line_input, "listen-queue-size %ld", + &vcl_cfg->listen_queue_size)) + { + VDBG (0, "VCL<%d>: configured listen_queue_size %ld (0x%lx)", + getpid (), vcl_cfg->listen_queue_size, + vcl_cfg->listen_queue_size); + } + else if (unformat (line_input, "app-timeout %f", + &vcl_cfg->app_timeout)) + { + VDBG (0, "VCL<%d>: configured app_timeout %f", + getpid (), vcl_cfg->app_timeout); + } + else if (unformat (line_input, "session-timeout %f", + &vcl_cfg->session_timeout)) + { + VDBG (0, "VCL<%d>: configured session_timeout %f", + getpid (), vcl_cfg->session_timeout); + } + else if (unformat (line_input, "accept-timeout %f", + &vcl_cfg->accept_timeout)) + { + VDBG (0, "VCL<%d>: configured accept_timeout %f", + getpid (), vcl_cfg->accept_timeout); + } + else if (unformat (line_input, "app-proxy-transport-tcp")) + { + vcl_cfg->app_proxy_transport_tcp = 1; + VDBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%d)", + getpid (), vcl_cfg->app_proxy_transport_tcp); + } + else if (unformat (line_input, "app-proxy-transport-udp")) + { + vcl_cfg->app_proxy_transport_udp = 1; + VDBG (0, "VCL<%d>: configured app_proxy_transport_udp (%d)", + getpid (), vcl_cfg->app_proxy_transport_udp); + } + else if (unformat (line_input, "app-scope-local")) + { + vcl_cfg->app_scope_local = 1; + VDBG (0, "VCL<%d>: configured app_scope_local (%d)", + getpid (), vcl_cfg->app_scope_local); + } + else if (unformat (line_input, "app-scope-global")) + { + vcl_cfg->app_scope_global = 1; + VDBG (0, "VCL<%d>: configured app_scope_global (%d)", + getpid (), vcl_cfg->app_scope_global); + } + else if (unformat (line_input, "namespace-secret %lu", + &vcl_cfg->namespace_secret)) + { + VDBG (0, "VCL<%d>: configured namespace_secret %lu (0x%lx)", + getpid (), vcl_cfg->namespace_secret, + vcl_cfg->namespace_secret); + } + else if (unformat (line_input, "namespace-id %v", + &vcl_cfg->namespace_id)) + { + u32 max_nsid_vec_len = vcl_max_nsid_len (); + u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id); + if (nsid_vec_len > max_nsid_vec_len) + { + _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len; + VDBG (0, "VCL<%d>: configured namespace_id is too long," + " truncated to %d characters!", + getpid (), max_nsid_vec_len); + } + + VDBG (0, "VCL<%d>: configured namespace_id %v", + getpid (), vcl_cfg->namespace_id); + } + else if (unformat (line_input, "}")) + { + vc_cfg_input = 0; + VDBG (0, "VCL<%d>: completed parsing vppcom config!", + getpid ()); + goto input_done; + } + else + { + if (line_input->buffer[line_input->index] != '#') + { + clib_warning ("VCL<%d>: Unknown vppcom config option: '%s'", + getpid (), (char *) + &line_input->buffer[line_input->index]); + } + } + } + } + +input_done: + unformat_free (input); + +file_done: + if (fd >= 0) + close (fd); +} + +void +vppcom_cfg (vppcom_cfg_t * vcl_cfg) +{ + char *conf_fname, *env_var_str; + + vppcom_cfg_init (vcl_cfg); + env_var_str = getenv (VPPCOM_ENV_DEBUG); + if (env_var_str) + { + u32 tmp; + if (sscanf (env_var_str, "%u", &tmp) != 1) + clib_warning ("VCL<%d>: WARNING: Invalid debug level specified " + "in the environment variable " VPPCOM_ENV_DEBUG + " (%s)!\n", getpid (), env_var_str); + else + { + vcm->debug = tmp; + VDBG (0, "VCL<%d>: configured VCL debug level (%u) from " + VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug); + } + } + conf_fname = getenv (VPPCOM_ENV_CONF); + if (!conf_fname) + conf_fname = VPPCOM_CONF_DEFAULT; + vppcom_cfg_heapsize (conf_fname); + vppcom_cfg_read_file (conf_fname); + + env_var_str = getenv (VPPCOM_ENV_API_PREFIX); + if (env_var_str) + { + if (vcl_cfg->vpp_api_filename) + vec_free (vcl_cfg->vpp_api_filename); + vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c", env_var_str, 0); + vl_set_memory_root_path ((char *) env_var_str); + + VDBG (0, "VCL<%d>: configured api prefix (%s) and filename (%s) " + "from " VPPCOM_ENV_API_PREFIX "!", + getpid (), env_var_str, vcl_cfg->vpp_api_filename); + } + env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID); + if (env_var_str) + { + u32 ns_id_vec_len = strlen (env_var_str); + + vec_reset_length (vcm->cfg.namespace_id); + vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1); + clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len); + + VDBG (0, "VCL<%d>: configured namespace_id (%v) from " + VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), + vcm->cfg.namespace_id); + } + env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET); + if (env_var_str) + { + u64 tmp; + if (sscanf (env_var_str, "%lu", &tmp) != 1) + clib_warning ("VCL<%d>: WARNING: Invalid namespace secret " + "specified in the environment variable " + VPPCOM_ENV_APP_NAMESPACE_SECRET + " (%s)!\n", getpid (), env_var_str); + else + { + vcm->cfg.namespace_secret = tmp; + VDBG (0, "VCL<%d>: configured namespace secret (%lu) from " + VPPCOM_ENV_APP_NAMESPACE_SECRET "!", getpid (), + vcm->cfg.namespace_secret); + } + } + if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP)) + { + vcm->cfg.app_proxy_transport_tcp = 1; + VDBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%u) from " + VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (), + vcm->cfg.app_proxy_transport_tcp); + } + if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP)) + { + vcm->cfg.app_proxy_transport_udp = 1; + VDBG (0, "VCL<%d>: configured app_proxy_transport_udp (%u) from " + VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (), + vcm->cfg.app_proxy_transport_udp); + } + if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL)) + { + vcm->cfg.app_scope_local = 1; + VDBG (0, "VCL<%d>: configured app_scope_local (%u) from " + VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (), + vcm->cfg.app_scope_local); + } + if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL)) + { + vcm->cfg.app_scope_global = 1; + VDBG (0, "VCL<%d>: configured app_scope_global (%u) from " + VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (), + vcm->cfg.app_scope_global); + } +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vcl/vcl_event.c b/src/vcl/vcl_event.c index e72b864e944..e08f5f33adc 100644 --- a/src/vcl/vcl_event.c +++ b/src/vcl/vcl_event.c @@ -20,6 +20,7 @@ #include <vcl/vppcom.h> #include <vcl/vcl_event.h> +#include <vcl/vcl_private.h> /** * @file @@ -29,7 +30,7 @@ */ int -vce_generate_event (vce_event_thread_t *evt, u32 ev_idx) +vce_generate_event (vce_event_thread_t * evt, u32 ev_idx) { int elts, rv = 0; vce_event_t *p; @@ -38,9 +39,9 @@ vce_generate_event (vce_event_thread_t *evt, u32 ev_idx) /* Check there is event data for this event */ - VCE_EVENTS_LOCK(); - p = pool_elt_at_index (evt->vce_events, ev_idx); - ASSERT(p); + VCE_EVENTS_LOCK (); + p = pool_elt_at_index (evt->vce_events, ev_idx); + ASSERT (p); elts = (int) clib_fifo_free_elts (evt->event_index_fifo); if (PREDICT_TRUE (elts)) @@ -61,7 +62,7 @@ vce_generate_event (vce_event_thread_t *evt, u32 ev_idx) } void -vce_clear_event (vce_event_thread_t *evt, u32 ev_idx) +vce_clear_event (vce_event_thread_t * evt, u32 ev_idx) { VCE_EVENTS_LOCK (); pool_put_index (evt->vce_events, ev_idx); @@ -69,19 +70,19 @@ vce_clear_event (vce_event_thread_t *evt, u32 ev_idx) } vce_event_t * -vce_get_event_from_index(vce_event_thread_t *evt, u32 ev_idx) +vce_get_event_from_index (vce_event_thread_t * evt, u32 ev_idx) { vce_event_t *ev = 0; /* Assumes caller has obtained the spinlock (evt->events_lockp) */ - if ( ! pool_is_free_index (evt->vce_events, ev_idx)) + if (!pool_is_free_index (evt->vce_events, ev_idx)) ev = pool_elt_at_index (evt->vce_events, ev_idx); return ev; } vce_event_handler_reg_t * -vce_get_event_handler (vce_event_thread_t *evt, vce_event_key_t *evk) +vce_get_event_handler (vce_event_thread_t * evt, vce_event_key_t * evk) { vce_event_handler_reg_t *handler = 0; uword *p; @@ -96,8 +97,8 @@ vce_get_event_handler (vce_event_thread_t *evt, vce_event_key_t *evk) } vce_event_handler_reg_t * -vce_register_handler (vce_event_thread_t *evt, vce_event_key_t *evk, - vce_event_callback_t cb, void *cb_args) +vce_register_handler (vce_event_thread_t * evt, vce_event_key_t * evk, + vce_event_callback_t cb, void *cb_args) { vce_event_handler_reg_t *handler; vce_event_handler_reg_t *old_handler = 0; @@ -116,17 +117,17 @@ vce_register_handler (vce_event_thread_t *evt, vce_event_key_t *evk, /* If we are just re-registering, ignore and move on * else store the old handler_fn for unregister to re-instate */ if (old_handler->handler_fn == cb) - { + { - VCE_HANDLERS_UNLOCK (); + VCE_HANDLERS_UNLOCK (); - /* Signal event thread that a handler exists in case any - * recycled events requiring this handler are pending */ - pthread_mutex_lock (&(evt->generator_lock)); - pthread_cond_signal (&(evt->generator_cond)); - pthread_mutex_unlock (&(evt->generator_lock)); - return old_handler; - } + /* Signal event thread that a handler exists in case any + * recycled events requiring this handler are pending */ + pthread_mutex_lock (&(evt->generator_lock)); + pthread_cond_signal (&(evt->generator_cond)); + pthread_mutex_unlock (&(evt->generator_lock)); + return old_handler; + } } pool_get (evt->vce_event_handlers, handler); @@ -134,7 +135,7 @@ vce_register_handler (vce_event_thread_t *evt, vce_event_key_t *evk, handler->handler_fn = cb; handler->replaced_handler_idx = (u32) ((p) ? p[0] : ~0); - handler->ev_idx = (u32) ~0; //This will be set by the event thread if event happens + handler->ev_idx = (u32) ~ 0; //This will be set by the event thread if event happens handler->evk = evk->as_u64; handler->handler_fn_args = cb_args; @@ -155,8 +156,8 @@ vce_register_handler (vce_event_thread_t *evt, vce_event_key_t *evk, } int -vce_unregister_handler (vce_event_thread_t *evt, - vce_event_handler_reg_t *handler) +vce_unregister_handler (vce_event_thread_t * evt, + vce_event_handler_reg_t * handler) { uword *p; u64 evk = handler->evk; @@ -218,54 +219,54 @@ vce_event_thread_fn (void *arg) { uword fifo_depth = clib_fifo_elts (evt->event_index_fifo); while ((fifo_depth == 0) || (recycle_count == fifo_depth)) - { - recycle_count = 0; - pthread_cond_wait (&(evt->generator_cond), &(evt->generator_lock)); - fifo_depth = clib_fifo_elts (evt->event_index_fifo); - } + { + recycle_count = 0; + pthread_cond_wait (&(evt->generator_cond), &(evt->generator_lock)); + fifo_depth = clib_fifo_elts (evt->event_index_fifo); + } /* Remove event */ VCE_EVENTS_LOCK (); clib_fifo_sub1 (evt->event_index_fifo, ev_idx); ev = vce_get_event_from_index (evt, ev_idx); - ASSERT(ev); + ASSERT (ev); if (recycle_count && ev->recycle) - { - clib_fifo_add1 (evt->event_index_fifo, ev_idx); - VCE_EVENTS_UNLOCK (); - continue; - } + { + clib_fifo_add1 (evt->event_index_fifo, ev_idx); + VCE_EVENTS_UNLOCK (); + continue; + } VCE_HANDLERS_LOCK (); p = hash_get (evt->handlers_index_by_event_key, ev->evk.as_u64); if (!p) - { - /* If an event falls in the woods, and there is no handler to hear it, - * does it make any sound? - * I don't know either, so lets biff the event */ - pool_put(evt->vce_events, ev); - VCE_EVENTS_UNLOCK (); - VCE_HANDLERS_UNLOCK (); - pthread_mutex_unlock (&(evt->generator_lock)); - } + { + /* If an event falls in the woods, and there is no handler to hear it, + * does it make any sound? + * I don't know either, so lets biff the event */ + pool_put (evt->vce_events, ev); + VCE_EVENTS_UNLOCK (); + VCE_HANDLERS_UNLOCK (); + pthread_mutex_unlock (&(evt->generator_lock)); + } else - { - u32 evt_recycle = ev->recycle; - handler = pool_elt_at_index (evt->vce_event_handlers, p[0]); - handler->ev_idx = ev_idx; - ev->recycle = 0; + { + u32 evt_recycle = ev->recycle; + handler = pool_elt_at_index (evt->vce_event_handlers, p[0]); + handler->ev_idx = ev_idx; + ev->recycle = 0; - VCE_EVENTS_UNLOCK (); - VCE_HANDLERS_UNLOCK (); - pthread_mutex_unlock (&(evt->generator_lock)); + VCE_EVENTS_UNLOCK (); + VCE_HANDLERS_UNLOCK (); + pthread_mutex_unlock (&(evt->generator_lock)); - (handler->handler_fn)(handler); + (handler->handler_fn) (handler); - VCE_EVENTS_LOCK (); - ev = vce_get_event_from_index (evt, ev_idx); - recycle_count += (!evt_recycle && ev && ev->recycle) ? 1 : 0; - VCE_EVENTS_UNLOCK (); - } + VCE_EVENTS_LOCK (); + ev = vce_get_event_from_index (evt, ev_idx); + recycle_count += (!evt_recycle && ev && ev->recycle) ? 1 : 0; + VCE_EVENTS_UNLOCK (); + } pthread_mutex_lock (&(evt->generator_lock)); } @@ -273,7 +274,7 @@ vce_event_thread_fn (void *arg) } int -vce_start_event_thread (vce_event_thread_t *evt, u8 max_events) +vce_start_event_thread (vce_event_thread_t * evt, u8 max_events) { clib_fifo_validate (evt->event_index_fifo, max_events); evt->handlers_index_by_event_key = hash_create (0, sizeof (uword)); @@ -285,6 +286,269 @@ vce_start_event_thread (vce_event_thread_t *evt, u8 max_events) clib_spinlock_init (&(evt->handlers_lockp)); return pthread_create (&(evt->thread), NULL /* attr */ , - vce_event_thread_fn, evt); + vce_event_thread_fn, evt); +} + +static void * +vppcom_session_io_thread_fn (void *arg) +{ + vppcom_session_io_thread_t *evt = (vppcom_session_io_thread_t *) arg; + u32 *session_indexes = 0, *session_index; + int i, rv; + u32 bytes = 0; + vcl_session_t *session; + + while (1) + { + vec_reset_length (session_indexes); + VCE_IO_SESSIONS_LOCK (); + /* *INDENT-OFF* */ + pool_foreach (session_index, evt->active_session_indexes, ({ + vec_add1 (session_indexes, *session_index); + })); + /* *INDENT-ON* */ + VCE_IO_SESSIONS_UNLOCK (); + if (session_indexes) + { + for (i = 0; i < vec_len (session_indexes); ++i) + { + VCL_SESSION_LOCK_AND_GET (session_indexes[i], &session); + bytes = svm_fifo_max_dequeue (session->rx_fifo); + VCL_SESSION_UNLOCK (); + + if (bytes) + { + vppcom_ioevent_t *eio; + vce_event_t *ev; + u32 ev_idx; + + VCL_EVENTS_LOCK (); + + pool_get (vcm->event_thread.vce_events, ev); + ev_idx = (u32) (ev - vcm->event_thread.vce_events); + eio = vce_get_event_data (ev, sizeof (*eio)); + ev->evk.eid = VCL_EVENT_IOEVENT_RX_FIFO; + ev->evk.session_index = session_indexes[i]; + eio->bytes = bytes; + eio->session_index = session_indexes[i]; + + VCL_EVENTS_UNLOCK (); + + rv = vce_generate_event (&vcm->event_thread, ev_idx); + } + } + } + struct timespec ts; + ts.tv_sec = 0; + ts.tv_nsec = 1000000; /* 1 millisecond */ + nanosleep (&ts, NULL); + } +done: + VCL_SESSION_UNLOCK (); + return NULL; } +static int +vppcom_start_io_event_thread (vppcom_session_io_thread_t * evt, + u8 max_sessions) +{ + pthread_cond_init (&(evt->vce_io_cond), NULL); + pthread_mutex_init (&(evt->vce_io_lock), NULL); + + clib_spinlock_init (&(evt->io_sessions_lockp)); + + return pthread_create (&(evt->thread), NULL /* attr */ , + vppcom_session_io_thread_fn, evt); +} + +static void +vce_registered_ioevent_handler_fn (void *arg) +{ + vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; + vppcom_ioevent_t *eio; + vce_event_t *ev; + u32 ioevt_ndx = (u64) (reg->handler_fn_args); + vppcom_session_ioevent_t *ioevent, ioevent_; + + VCL_EVENTS_LOCK (); + ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); + eio = vce_get_event_data (ev, sizeof (*eio)); + VCL_EVENTS_UNLOCK (); + + VCL_IO_SESSIONS_LOCK (); + ioevent = pool_elt_at_index (vcm->session_io_thread.ioevents, ioevt_ndx); + ioevent_ = *ioevent; + VCL_IO_SESSIONS_UNLOCK (); + (ioevent_.user_cb) (eio, ioevent_.user_cb_data); + vce_clear_event (&vcm->event_thread, reg->ev_idx); + return; + + /*TODO - Unregister check in close for this listener */ + +} + +void +vce_registered_listener_connect_handler_fn (void *arg) +{ + vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; + vce_event_connect_request_t *ecr; + vce_event_t *ev; + vppcom_endpt_t ep; + + vcl_session_t *new_session; + int rv; + + vppcom_session_listener_t *session_listener = + (vppcom_session_listener_t *) reg->handler_fn_args; + + VCL_EVENTS_LOCK (); + ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); + ecr = vce_get_event_data (ev, sizeof (*ecr)); + VCL_EVENTS_UNLOCK (); + VCL_SESSION_LOCK_AND_GET (ecr->accepted_session_index, &new_session); + + ep.is_ip4 = new_session->transport.is_ip4; + ep.port = new_session->transport.rmt_port; + if (new_session->transport.is_ip4) + clib_memcpy (&ep.ip, &new_session->transport.rmt_ip.ip4, + sizeof (ip4_address_t)); + else + clib_memcpy (&ep.ip, &new_session->transport.rmt_ip.ip6, + sizeof (ip6_address_t)); + + vppcom_send_accept_session_reply (new_session->vpp_handle, + new_session->client_context, + 0 /* retval OK */ ); + VCL_SESSION_UNLOCK (); + + (session_listener->user_cb) (ecr->accepted_session_index, &ep, + session_listener->user_cb_data); + + if (vcm->session_io_thread.io_sessions_lockp) + { + /* Throw this new accepted session index into the rx poll thread pool */ + VCL_IO_SESSIONS_LOCK (); + u32 *active_session_index; + pool_get (vcm->session_io_thread.active_session_indexes, + active_session_index); + *active_session_index = ecr->accepted_session_index; + VCL_IO_SESSIONS_UNLOCK (); + } + + /*TODO - Unregister check in close for this listener */ + return; + +done: + ASSERT (0); // If we can't get a lock or accepted session fails, lets blow up. +} + +/** + * @brief vce_poll_wait_connect_request_handler_fn + * - used by vppcom_epoll_xxxx() for listener sessions + * - when a vl_api_accept_session_t_handler() generates an event + * this callback is alerted and sets the fields that vppcom_epoll_wait() + * expects to see. + * + * @param arg - void* to be cast to vce_event_handler_reg_t* + */ +void +vce_poll_wait_connect_request_handler_fn (void *arg) +{ + vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; + vce_event_t *ev; + /* Retrieve the VCL_EVENT_CONNECT_REQ_ACCEPTED event */ + ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); + vce_event_connect_request_t *ecr = vce_get_event_data (ev, sizeof (*ecr)); + + /* Add the accepted_session_index to the FIFO */ + VCL_ACCEPT_FIFO_LOCK (); + clib_fifo_add1 (vcm->client_session_index_fifo, + ecr->accepted_session_index); + VCL_ACCEPT_FIFO_UNLOCK (); + + /* Recycling the event. */ + VCL_EVENTS_LOCK (); + ev->recycle = 1; + clib_fifo_add1 (vcm->event_thread.event_index_fifo, reg->ev_idx); + VCL_EVENTS_UNLOCK (); +} + +int +vppcom_session_register_ioevent_cb (uint32_t session_index, + vppcom_session_ioevent_cb cb, + uint8_t rx, void *ptr) +{ + int rv = VPPCOM_OK; + vce_event_key_t evk; + vppcom_session_ioevent_t *ioevent; + + if (!vcm->session_io_thread.io_sessions_lockp) + rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100); /* DAW_TODO: ??? hard-coded value */ + + if (rv == VPPCOM_OK) + { + void *io_evt_ndx; + + /* Register handler for ioevent on session_index */ + VCL_IO_SESSIONS_LOCK (); + pool_get (vcm->session_io_thread.ioevents, ioevent); + io_evt_ndx = (void *) (ioevent - vcm->session_io_thread.ioevents); + ioevent->user_cb = cb; + ioevent->user_cb_data = ptr; + VCL_IO_SESSIONS_UNLOCK (); + + evk.session_index = session_index; + evk.eid = rx ? VCL_EVENT_IOEVENT_RX_FIFO : VCL_EVENT_IOEVENT_TX_FIFO; + + (void) vce_register_handler (&vcm->event_thread, &evk, + vce_registered_ioevent_handler_fn, + io_evt_ndx); + } + return rv; +} + +int +vppcom_session_register_listener (uint32_t session_index, + vppcom_session_listener_cb cb, + vppcom_session_listener_errcb + errcb, uint8_t flags, int q_len, void *ptr) +{ + int rv = VPPCOM_OK; + vce_event_key_t evk; + vppcom_session_listener_t *listener_args; + + if (!vcm->session_io_thread.io_sessions_lockp) + rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100); /* DAW_TODO: ??? hard-coded value */ + if (rv) + { + goto done; + } + rv = vppcom_session_listen (session_index, q_len); + if (rv) + { + goto done; + } + + /* Register handler for connect_request event on listen_session_index */ + listener_args = clib_mem_alloc (sizeof (vppcom_session_listener_t)); // DAW_TODO: Use a pool instead of thrashing the memory allocator! + listener_args->user_cb = cb; + listener_args->user_cb_data = ptr; + listener_args->user_errcb = errcb; + + evk.session_index = session_index; + evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; + (void) vce_register_handler (&vcm->event_thread, &evk, + vce_registered_listener_connect_handler_fn, + listener_args); + +done: + return rv; +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vcl/vcl_private.h b/src/vcl/vcl_private.h new file mode 100644 index 00000000000..4283b6e1167 --- /dev/null +++ b/src/vcl/vcl_private.h @@ -0,0 +1,337 @@ +/* + * Copyright (c) 2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef SRC_VCL_VCL_PRIVATE_H_ +#define SRC_VCL_VCL_PRIVATE_H_ + +#include <vnet/session/application_interface.h> +#include <vcl/vppcom.h> +#include <vcl/vcl_event.h> +#include <vcl/vcl_debug.h> + +#if (CLIB_DEBUG > 0) +/* Set VPPCOM_DEBUG_INIT 2 for connection debug, + * 3 for read/write debug output + * or + * export VCL_DEBUG=<#> to set dynamically. + */ +#define VPPCOM_DEBUG_INIT 1 +#else +#define VPPCOM_DEBUG_INIT 0 +#endif + +#define VPPCOM_DEBUG vcm->debug + +/* + * VPPCOM Private definitions and functions. + */ +typedef enum +{ + STATE_APP_START, + STATE_APP_CONN_VPP, + STATE_APP_ENABLED, + STATE_APP_ATTACHED, +} app_state_t; + +typedef enum +{ + 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 +{ + u32 next_sid; + u32 prev_sid; + u32 vep_idx; + vppcom_epoll_event_t ev; +#define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT) +#define VEP_UNSUPPORTED_EVENTS (EPOLLONESHOT|EPOLLEXCLUSIVE) + u32 et_mask; +} vppcom_epoll_t; + +typedef struct +{ + u8 is_ip4; + ip46_address_t ip46; +} vppcom_ip46_t; + +enum +{ + VCL_SESS_ATTR_SERVER, + VCL_SESS_ATTR_CUT_THRU, + VCL_SESS_ATTR_VEP, + VCL_SESS_ATTR_VEP_SESSION, + VCL_SESS_ATTR_LISTEN, // SOL_SOCKET,SO_ACCEPTCONN + VCL_SESS_ATTR_NONBLOCK, // fcntl,O_NONBLOCK + VCL_SESS_ATTR_REUSEADDR, // SOL_SOCKET,SO_REUSEADDR + VCL_SESS_ATTR_REUSEPORT, // SOL_SOCKET,SO_REUSEPORT + VCL_SESS_ATTR_BROADCAST, // SOL_SOCKET,SO_BROADCAST + VCL_SESS_ATTR_V6ONLY, // SOL_TCP,IPV6_V6ONLY + VCL_SESS_ATTR_KEEPALIVE, // SOL_SOCKET,SO_KEEPALIVE + VCL_SESS_ATTR_TCP_NODELAY, // SOL_TCP,TCP_NODELAY + VCL_SESS_ATTR_TCP_KEEPIDLE, // SOL_TCP,TCP_KEEPIDLE + VCL_SESS_ATTR_TCP_KEEPINTVL, // SOL_TCP,TCP_KEEPINTVL + VCL_SESS_ATTR_MAX +} vppcom_session_attr_t; + +#define VCL_SESS_ATTR_SET(ATTR, VAL) \ +do { \ + (ATTR) |= 1 << (VAL); \ + } while (0) + +#define VCL_SESS_ATTR_CLR(ATTR, VAL) \ +do { \ + (ATTR) &= ~(1 << (VAL)); \ + } while (0) + +#define VCL_SESS_ATTR_TEST(ATTR, VAL) \ + ((ATTR) & (1 << (VAL)) ? 1 : 0) + +typedef struct +{ +#define _(type, name) type name; + foreach_app_session_field +#undef _ + u32 sndbuf_size; // VPP-TBD: Hack until support setsockopt(SO_SNDBUF) + u32 rcvbuf_size; // VPP-TBD: Hack until support setsockopt(SO_RCVBUF) + u32 user_mss; // VPP-TBD: Hack until support setsockopt(TCP_MAXSEG) + u8 *segment_name; + u32 sm_seg_index; + u32 client_context; + u64 vpp_handle; + + /* Socket configuration state */ + u8 is_vep; + u8 is_vep_session; + u32 attr; + u32 wait_cont_idx; + vppcom_epoll_t vep; + int libc_epfd; + u64 client_queue_address; + u64 options[16]; + vce_event_handler_reg_t *poll_reg; +#if VCL_ELOG + elog_track_t elog_track; +#endif +} vcl_session_t; + +typedef struct vppcom_cfg_t_ +{ + u64 heapsize; + u32 vpp_api_q_length; + u64 segment_baseva; + u32 segment_size; + u32 add_segment_size; + u32 preallocated_fifo_pairs; + u32 rx_fifo_size; + u32 tx_fifo_size; + u32 event_queue_size; + u32 listen_queue_size; + u8 app_proxy_transport_tcp; + u8 app_proxy_transport_udp; + u8 app_scope_local; + u8 app_scope_global; + u8 *namespace_id; + u64 namespace_secret; + f64 app_timeout; + f64 session_timeout; + f64 accept_timeout; + u32 event_ring_size; + char *event_log_path; + u8 *vpp_api_filename; +} vppcom_cfg_t; + +void vppcom_cfg (vppcom_cfg_t * vcl_cfg); + +typedef struct vppcom_main_t_ +{ + u8 init; + u32 debug; + int main_cpu; + + /* FIFO for accepted connections - used in epoll/select */ + clib_spinlock_t session_fifo_lockp; + u32 *client_session_index_fifo; + + /* vpp input queue */ + svm_queue_t *vl_input_queue; + + /* API client handle */ + u32 my_client_index; + /* Session pool */ + clib_spinlock_t sessions_lockp; + vcl_session_t *sessions; + + /* Hash table for disconnect processing */ + uword *session_index_by_vpp_handles; + + /* Select bitmaps */ + clib_bitmap_t *rd_bitmap; + clib_bitmap_t *wr_bitmap; + clib_bitmap_t *ex_bitmap; + + /* Our event queue */ + svm_queue_t *app_event_queue; + + /* unique segment name counter */ + u32 unique_segment_index; + + /* For deadman timers */ + clib_time_t clib_time; + + /* State of the connection, shared between msg RX thread and main thread */ + volatile app_state_t app_state; + + vppcom_cfg_t cfg; + + /* Event thread */ + vce_event_thread_t event_thread; + + /* IO thread */ + vppcom_session_io_thread_t session_io_thread; + +#ifdef VCL_ELOG + /* VPP Event-logger */ + elog_main_t elog_main; + elog_track_t elog_track; +#endif + + /* VNET_API_ERROR_FOO -> "Foo" hash table */ + uword *error_string_by_error_number; +} vppcom_main_t; + +extern vppcom_main_t *vcm; + +#define VCL_SESSION_LOCK_AND_GET(I, S) \ +do { \ + clib_spinlock_lock (&vcm->sessions_lockp); \ + rv = vppcom_session_at_index (I, S); \ + if (PREDICT_FALSE (rv)) \ + { \ + clib_spinlock_unlock (&vcm->sessions_lockp); \ + clib_warning ("VCL<%d>: ERROR: Invalid ##I (%u)!", \ + getpid (), I); \ + goto done; \ + } \ +} while (0) + +#define VCL_SESSION_LOCK() clib_spinlock_lock (&(vcm->sessions_lockp)) +#define VCL_SESSION_UNLOCK() clib_spinlock_unlock (&(vcm->sessions_lockp)) + +#define VCL_IO_SESSIONS_LOCK() \ + clib_spinlock_lock (&(vcm->session_io_thread.io_sessions_lockp)) +#define VCL_IO_SESSIONS_UNLOCK() \ + clib_spinlock_unlock (&(vcm->session_io_thread.io_sessions_lockp)) + +#define VCL_ACCEPT_FIFO_LOCK() clib_spinlock_lock (&(vcm->session_fifo_lockp)) +#define VCL_ACCEPT_FIFO_UNLOCK() \ + clib_spinlock_unlock (&(vcm->session_fifo_lockp)) + +#define VCL_EVENTS_LOCK() \ + clib_spinlock_lock (&(vcm->event_thread.events_lockp)) +#define VCL_EVENTS_UNLOCK() \ + clib_spinlock_unlock (&(vcm->event_thread.events_lockp)) + +static inline int +vppcom_session_at_index (u32 session_index, vcl_session_t * volatile *sess) +{ + /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */ + if (PREDICT_FALSE ((session_index == ~0) || + pool_is_free_index (vcm->sessions, session_index))) + { + clib_warning ("VCL<%d>: invalid session, sid (%u) has been closed!", + getpid (), session_index); + return VPPCOM_EBADFD; + } + *sess = pool_elt_at_index (vcm->sessions, session_index); + return VPPCOM_OK; +} + +static inline void +vppcom_session_table_add_listener (u64 listener_handle, u32 value) +{ + /* Session and listener handles have different formats. The latter has + * the thread index in the upper 32 bits while the former has the session + * type. Knowing that, for listeners we just flip the MSB to 1 */ + listener_handle |= 1ULL << 63; + hash_set (vcm->session_index_by_vpp_handles, listener_handle, value); +} + +static inline vcl_session_t * +vppcom_session_table_lookup_listener (u64 listener_handle) +{ + uword *p; + u64 handle = listener_handle | (1ULL << 63); + vcl_session_t *session; + + p = hash_get (vcm->session_index_by_vpp_handles, handle); + if (!p) + { + clib_warning ("VCL<%d>: couldn't find listen session: unknown vpp " + "listener handle %llx", getpid (), listener_handle); + return 0; + } + if (pool_is_free_index (vcm->sessions, p[0])) + { + VDBG (1, "VCL<%d>: invalid listen session, sid (%u)", getpid (), p[0]); + return 0; + } + + session = pool_elt_at_index (vcm->sessions, p[0]); + ASSERT (session->session_state & STATE_LISTEN); + return session; +} + +const char *vppcom_session_state_str (session_state_t state); + +/* + * VCL Binary API + */ +int vppcom_connect_to_vpp (char *app_name); +void vppcom_init_error_string_table (void); +void vppcom_send_session_enable_disable (u8 is_enable); +void vppcom_app_send_attach (void); +void vppcom_app_send_detach (void); +void vppcom_send_connect_sock (vcl_session_t * session, u32 session_index); +void vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index, + int rv); +void vppcom_send_disconnect_session (u64 vpp_handle, u32 session_index); +void vppcom_send_bind_sock (vcl_session_t * session, u32 session_index); +void vppcom_send_unbind_sock (u64 vpp_handle); +void vppcom_api_hookup (void); +void vppcom_send_accept_session_reply (u64 handle, u32 context, int retval); + +u32 vcl_max_nsid_len (void); + +#endif /* SRC_VCL_VCL_PRIVATE_H_ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 3cd2e766f63..1fd138e6dd3 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -15,273 +15,11 @@ #include <stdio.h> #include <stdlib.h> -#include <signal.h> #include <svm/svm_fifo_segment.h> -#include <vlibmemory/api.h> -#include <vpp/api/vpe_msg_enum.h> -#include <vnet/session/application_interface.h> #include <vcl/vppcom.h> #include <vcl/vcl_event.h> #include <vcl/vcl_debug.h> -#include <vlib/unix/unix.h> -#include <vppinfra/vec_bootstrap.h> - -#define vl_typedefs /* define message structures */ -#include <vpp/api/vpe_all_api_h.h> -#undef vl_typedefs - -/* declare message handlers for each api */ - -#define vl_endianfun /* define message structures */ -#include <vpp/api/vpe_all_api_h.h> -#undef vl_endianfun - -/* instantiate all the print functions we know about */ -#define vl_print(handle, ...) -#define vl_printfun -#include <vpp/api/vpe_all_api_h.h> -#undef vl_printfun - -#if (CLIB_DEBUG > 0) -/* Set VPPCOM_DEBUG_INIT 2 for connection debug, - * 3 for read/write debug output - * or - * export VCL_DEBUG=<#> to set dynamically. - */ -#define VPPCOM_DEBUG_INIT 1 -#else -#define VPPCOM_DEBUG_INIT 0 -#endif - -#define VPPCOM_DEBUG vcm->debug - -/* - * VPPCOM Private definitions and functions. - */ -typedef enum -{ - STATE_APP_START, - STATE_APP_CONN_VPP, - STATE_APP_ENABLED, - STATE_APP_ATTACHED, -} app_state_t; - -typedef enum -{ - 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 -{ - u32 next_sid; - u32 prev_sid; - u32 vep_idx; - vppcom_epoll_event_t ev; -#define VEP_DEFAULT_ET_MASK (EPOLLIN|EPOLLOUT) -#define VEP_UNSUPPORTED_EVENTS (EPOLLONESHOT|EPOLLEXCLUSIVE) - u32 et_mask; -} vppcom_epoll_t; - -typedef struct -{ - u8 is_ip4; - ip46_address_t ip46; -} vppcom_ip46_t; - -enum -{ - VCL_SESS_ATTR_SERVER, - VCL_SESS_ATTR_CUT_THRU, - VCL_SESS_ATTR_VEP, - VCL_SESS_ATTR_VEP_SESSION, - VCL_SESS_ATTR_LISTEN, // SOL_SOCKET,SO_ACCEPTCONN - VCL_SESS_ATTR_NONBLOCK, // fcntl,O_NONBLOCK - VCL_SESS_ATTR_REUSEADDR, // SOL_SOCKET,SO_REUSEADDR - VCL_SESS_ATTR_REUSEPORT, // SOL_SOCKET,SO_REUSEPORT - VCL_SESS_ATTR_BROADCAST, // SOL_SOCKET,SO_BROADCAST - VCL_SESS_ATTR_V6ONLY, // SOL_TCP,IPV6_V6ONLY - VCL_SESS_ATTR_KEEPALIVE, // SOL_SOCKET,SO_KEEPALIVE - VCL_SESS_ATTR_TCP_NODELAY, // SOL_TCP,TCP_NODELAY - VCL_SESS_ATTR_TCP_KEEPIDLE, // SOL_TCP,TCP_KEEPIDLE - VCL_SESS_ATTR_TCP_KEEPINTVL, // SOL_TCP,TCP_KEEPINTVL - VCL_SESS_ATTR_MAX -} vppcom_session_attr_t; - -#define VCL_SESS_ATTR_SET(ATTR, VAL) \ -do { \ - (ATTR) |= 1 << (VAL); \ - } while (0) - -#define VCL_SESS_ATTR_CLR(ATTR, VAL) \ -do { \ - (ATTR) &= ~(1 << (VAL)); \ - } while (0) - -#define VCL_SESS_ATTR_TEST(ATTR, VAL) \ - ((ATTR) & (1 << (VAL)) ? 1 : 0) - -typedef struct -{ -#define _(type, name) type name; - foreach_app_session_field -#undef _ - u32 sndbuf_size; // VPP-TBD: Hack until support setsockopt(SO_SNDBUF) - u32 rcvbuf_size; // VPP-TBD: Hack until support setsockopt(SO_RCVBUF) - u32 user_mss; // VPP-TBD: Hack until support setsockopt(TCP_MAXSEG) - u8 *segment_name; - u32 sm_seg_index; - u32 client_context; - u64 vpp_handle; - - /* Socket configuration state */ - u8 is_vep; - u8 is_vep_session; - u32 attr; - u32 wait_cont_idx; - vppcom_epoll_t vep; - int libc_epfd; - u64 client_queue_address; - u64 options[16]; - vce_event_handler_reg_t *poll_reg; -#if VCL_ELOG - elog_track_t elog_track; -#endif -} vcl_session_t; - -typedef struct vppcom_cfg_t_ -{ - u64 heapsize; - u32 vpp_api_q_length; - u64 segment_baseva; - u32 segment_size; - u32 add_segment_size; - u32 preallocated_fifo_pairs; - u32 rx_fifo_size; - u32 tx_fifo_size; - u32 event_queue_size; - u32 listen_queue_size; - u8 app_proxy_transport_tcp; - u8 app_proxy_transport_udp; - u8 app_scope_local; - u8 app_scope_global; - u8 *namespace_id; - u64 namespace_secret; - f64 app_timeout; - f64 session_timeout; - f64 accept_timeout; - u32 event_ring_size; - char *event_log_path; - u8 *vpp_api_filename; -} vppcom_cfg_t; - -typedef struct vppcom_main_t_ -{ - u8 init; - u32 debug; - int main_cpu; - - /* FIFO for accepted connections - used in epoll/select */ - clib_spinlock_t session_fifo_lockp; - u32 *client_session_index_fifo; - - /* vpp input queue */ - svm_queue_t *vl_input_queue; - - /* API client handle */ - u32 my_client_index; - /* Session pool */ - clib_spinlock_t sessions_lockp; - vcl_session_t *sessions; - - /* Hash table for disconnect processing */ - uword *session_index_by_vpp_handles; - - /* Select bitmaps */ - clib_bitmap_t *rd_bitmap; - clib_bitmap_t *wr_bitmap; - clib_bitmap_t *ex_bitmap; - - /* Our event queue */ - svm_queue_t *app_event_queue; - - /* unique segment name counter */ - u32 unique_segment_index; - - /* For deadman timers */ - clib_time_t clib_time; - - /* State of the connection, shared between msg RX thread and main thread */ - volatile app_state_t app_state; - - vppcom_cfg_t cfg; - - /* Event thread */ - vce_event_thread_t event_thread; - - /* IO thread */ - vppcom_session_io_thread_t session_io_thread; - -#ifdef VCL_ELOG - /* VPP Event-logger */ - elog_main_t elog_main; - elog_track_t elog_track; -#endif - - /* VNET_API_ERROR_FOO -> "Foo" hash table */ - uword *error_string_by_error_number; -} vppcom_main_t; - -/* NOTE: _vppcom_main is only used until the heap is allocated. - * Do not access it directly -- use vcm which will point to - * the heap allocated copy after init. - */ -static vppcom_main_t _vppcom_main = { - .debug = VPPCOM_DEBUG_INIT, - .my_client_index = ~0 -}; - -static vppcom_main_t *vcm = &_vppcom_main; - -#define VCL_SESSION_LOCK_AND_GET(I, S) \ -do { \ - clib_spinlock_lock (&vcm->sessions_lockp); \ - rv = vppcom_session_at_index (I, S); \ - if (PREDICT_FALSE (rv)) \ - { \ - clib_spinlock_unlock (&vcm->sessions_lockp); \ - clib_warning ("VCL<%d>: ERROR: Invalid ##I (%u)!", \ - getpid (), I); \ - goto done; \ - } \ -} while (0) - -#define VCL_SESSION_LOCK() clib_spinlock_lock (&(vcm->sessions_lockp)) -#define VCL_SESSION_UNLOCK() clib_spinlock_unlock (&(vcm->sessions_lockp)) - -#define VCL_IO_SESSIONS_LOCK() \ - clib_spinlock_lock (&(vcm->session_io_thread.io_sessions_lockp)) -#define VCL_IO_SESSIONS_UNLOCK() \ - clib_spinlock_unlock (&(vcm->session_io_thread.io_sessions_lockp)) - -#define VCL_ACCEPT_FIFO_LOCK() clib_spinlock_lock (&(vcm->session_fifo_lockp)) -#define VCL_ACCEPT_FIFO_UNLOCK() \ - clib_spinlock_unlock (&(vcm->session_fifo_lockp)) - -#define VCL_EVENTS_LOCK() \ - clib_spinlock_lock (&(vcm->event_thread.events_lockp)) -#define VCL_EVENTS_UNLOCK() \ - clib_spinlock_unlock (&(vcm->event_thread.events_lockp)) +#include <vcl/vcl_private.h> static const char * vppcom_app_state_str (app_state_t state) @@ -314,7 +52,7 @@ vppcom_app_state_str (app_state_t state) return st; } -static const char * +const char * vppcom_session_state_str (session_state_t state) { char *st; @@ -357,139 +95,98 @@ vppcom_session_state_str (session_state_t state) return st; } - -/* - * VPPCOM Utility Functions - */ - -static inline int -vppcom_session_at_index (u32 session_index, vcl_session_t * volatile *sess) -{ - /* Assumes that caller has acquired spinlock: vcm->sessions_lockp */ - if (PREDICT_FALSE ((session_index == ~0) || - pool_is_free_index (vcm->sessions, session_index))) - { - clib_warning ("VCL<%d>: invalid session, sid (%u) has been closed!", - getpid (), session_index); - return VPPCOM_EBADFD; - } - *sess = pool_elt_at_index (vcm->sessions, session_index); - return VPPCOM_OK; -} - -static inline void -vppcom_session_table_add_listener (u64 listener_handle, u32 value) +u8 * +format_ip4_address (u8 * s, va_list * args) { - /* Session and listener handles have different formats. The latter has - * the thread index in the upper 32 bits while the former has the session - * type. Knowing that, for listeners we just flip the MSB to 1 */ - listener_handle |= 1ULL << 63; - hash_set (vcm->session_index_by_vpp_handles, listener_handle, value); + u8 *a = va_arg (*args, u8 *); + return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); } -static inline vcl_session_t * -vppcom_session_table_lookup_listener (u64 listener_handle) +u8 * +format_ip6_address (u8 * s, va_list * args) { - uword *p; - u64 handle = listener_handle | (1ULL << 63); - vcl_session_t *session; + ip6_address_t *a = va_arg (*args, ip6_address_t *); + u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon; - p = hash_get (vcm->session_index_by_vpp_handles, handle); - if (!p) + i_max_n_zero = ARRAY_LEN (a->as_u16); + max_n_zeros = 0; + i_first_zero = i_max_n_zero; + n_zeros = 0; + for (i = 0; i < ARRAY_LEN (a->as_u16); i++) { - clib_warning ("VCL<%d>: couldn't find listen session: unknown vpp " - "listener handle %llx", getpid (), listener_handle); - return 0; + u32 is_zero = a->as_u16[i] == 0; + if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16)) + { + i_first_zero = i; + n_zeros = 0; + } + n_zeros += is_zero; + if ((!is_zero && n_zeros > max_n_zeros) + || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros)) + { + i_max_n_zero = i_first_zero; + max_n_zeros = n_zeros; + i_first_zero = ARRAY_LEN (a->as_u16); + n_zeros = 0; + } } - if (pool_is_free_index (vcm->sessions, p[0])) + + last_double_colon = 0; + for (i = 0; i < ARRAY_LEN (a->as_u16); i++) { - VDBG (1, "VCL<%d>: invalid listen session, sid (%u)", getpid (), p[0]); - return 0; + if (i == i_max_n_zero && max_n_zeros > 1) + { + s = format (s, "::"); + i += max_n_zeros - 1; + last_double_colon = 1; + } + else + { + s = format (s, "%s%x", + (last_double_colon || i == 0) ? "" : ":", + clib_net_to_host_u16 (a->as_u16[i])); + last_double_colon = 0; + } } - session = pool_elt_at_index (vcm->sessions, p[0]); - ASSERT (session->session_state & STATE_LISTEN); - return session; -} - -static inline void -vppcom_session_table_del_listener (u64 listener_handle) -{ - listener_handle |= 1ULL << 63; - hash_unset (vcm->session_index_by_vpp_handles, listener_handle); -} - -static inline void -vppcom_send_accept_session_reply (u64 handle, u32 context, int retval) -{ - vl_api_accept_session_reply_t *rmp; - - rmp = vl_msg_api_alloc (sizeof (*rmp)); - memset (rmp, 0, sizeof (*rmp)); - rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY); - rmp->retval = htonl (retval); - rmp->context = context; - rmp->handle = handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); + return s; } -static int -vppcom_connect_to_vpp (char *app_name) +/* Format an IP46 address. */ +u8 * +format_ip46_address (u8 * s, va_list * args) { - api_main_t *am = &api_main; - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - int rv = VPPCOM_OK; - - if (!vcl_cfg->vpp_api_filename) - vcl_cfg->vpp_api_filename = format (0, "/vpe-api%c", 0); - - VDBG (0, "VCL<%d>: app (%s) connecting to VPP api (%s)...", - getpid (), app_name, vcl_cfg->vpp_api_filename); + ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); + ip46_type_t type = va_arg (*args, ip46_type_t); + int is_ip4 = 1; - if (vl_client_connect_to_vlib ((char *) vcl_cfg->vpp_api_filename, app_name, - vcm->cfg.vpp_api_q_length) < 0) - { - clib_warning ("VCL<%d>: app (%s) connect failed!", getpid (), app_name); - rv = VPPCOM_ECONNREFUSED; - } - else + switch (type) { - vcm->vl_input_queue = am->shmem_hdr->vl_input_queue; - vcm->my_client_index = (u32) am->my_client_index; - vcm->app_state = STATE_APP_CONN_VPP; - - VDBG (0, "VCL<%d>: app (%s) is connected to VPP!", getpid (), app_name); + case IP46_TYPE_ANY: + is_ip4 = ip46_address_is_ip4 (ip46); + break; + case IP46_TYPE_IP4: + is_ip4 = 1; + break; + case IP46_TYPE_IP6: + is_ip4 = 0; + break; } - vcl_evt (VCL_EVT_INIT, vcm); - return rv; + return is_ip4 ? + format (s, "%U", format_ip4_address, &ip46->ip4) : + format (s, "%U", format_ip6_address, &ip46->ip6); } -static u8 * -format_api_error (u8 * s, va_list * args) -{ - i32 error = va_arg (*args, u32); - uword *p; - - p = hash_get (vcm->error_string_by_error_number, -error); - - if (p) - s = format (s, "%s (%d)", p[0], error); - else - s = format (s, "%d", error); - return s; -} +/* + * VPPCOM Utility Functions + */ -static void -vppcom_init_error_string_table (void) +static inline void +vppcom_session_table_del_listener (u64 listener_handle) { - vcm->error_string_by_error_number = hash_create (0, sizeof (uword)); - -#define _(n, v, s) hash_set (vcm->error_string_by_error_number, -v, s); - foreach_vnet_api_error; -#undef _ - - hash_set (vcm->error_string_by_error_number, 99, "Misc"); + listener_handle |= 1ULL << 63; + hash_unset (vcm->session_index_by_vpp_handles, listener_handle); } static inline int @@ -549,23 +246,6 @@ vppcom_wait_for_session_state_change (u32 session_index, return VPPCOM_ETIMEDOUT; } -/* - * VPP-API message functions - */ -static void -vppcom_send_session_enable_disable (u8 is_enable) -{ - vl_api_session_enable_disable_t *bmp; - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_SESSION_ENABLE_DISABLE); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - bmp->is_enable = is_enable; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - static int vppcom_app_session_enable (void) { @@ -585,57 +265,6 @@ vppcom_app_session_enable (void) return VPPCOM_OK; } -static void - vl_api_session_enable_disable_reply_t_handler - (vl_api_session_enable_disable_reply_t * mp) -{ - if (mp->retval) - { - clib_warning ("VCL<%d>: session_enable_disable failed: %U", getpid (), - format_api_error, ntohl (mp->retval)); - } - else - vcm->app_state = STATE_APP_ENABLED; -} - -static void -vppcom_app_send_attach (void) -{ - vl_api_application_attach_t *bmp; - u8 nsid_len = vec_len (vcm->cfg.namespace_id); - u8 app_is_proxy = (vcm->cfg.app_proxy_transport_tcp || - vcm->cfg.app_proxy_transport_udp); - - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - bmp->options[APP_OPTIONS_FLAGS] = - APP_OPTIONS_FLAGS_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT | - (vcm->cfg.app_scope_local ? APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE : 0) | - (vcm->cfg.app_scope_global ? APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE : 0) | - (app_is_proxy ? APP_OPTIONS_FLAGS_IS_PROXY : 0); - bmp->options[APP_OPTIONS_PROXY_TRANSPORT] = - (u64) ((vcm->cfg.app_proxy_transport_tcp ? 1 << TRANSPORT_PROTO_TCP : 0) | - (vcm->cfg.app_proxy_transport_udp ? 1 << TRANSPORT_PROTO_UDP : 0)); - bmp->options[APP_OPTIONS_SEGMENT_SIZE] = vcm->cfg.segment_size; - bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = vcm->cfg.add_segment_size; - bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = vcm->cfg.rx_fifo_size; - bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = vcm->cfg.tx_fifo_size; - bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = - vcm->cfg.preallocated_fifo_pairs; - bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = vcm->cfg.event_queue_size; - if (nsid_len) - { - bmp->namespace_id_len = nsid_len; - clib_memcpy (bmp->namespace_id, vcm->cfg.namespace_id, nsid_len); - bmp->options[APP_OPTIONS_NAMESPACE_SECRET] = vcm->cfg.namespace_secret; - } - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - static int vppcom_app_attach (void) { @@ -653,602 +282,6 @@ vppcom_app_attach (void) return VPPCOM_OK; } -static void -vppcom_app_detach (void) -{ - vl_api_application_detach_t *bmp; - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH); - bmp->client_index = vcm->my_client_index; - bmp->context = htonl (0xfeedface); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - -static void -vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t * - mp) -{ - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; - int rv; - - memset (a, 0, sizeof (*a)); - if (mp->retval) - { - clib_warning ("VCL<%d>: attach failed: %U", getpid (), - format_api_error, ntohl (mp->retval)); - return; - } - - if (mp->segment_name_length == 0) - { - clib_warning ("VCL<%d>: segment_name_length zero", getpid ()); - return; - } - - a->segment_name = (char *) mp->segment_name; - a->segment_size = mp->segment_size; - - ASSERT (mp->app_event_queue_address); - - /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (a); - vec_reset_length (a->new_segment_indices); - if (PREDICT_FALSE (rv)) - { - clib_warning ("VCL<%d>: svm_fifo_segment_attach ('%s') failed", - getpid (), mp->segment_name); - return; - } - - vcm->app_event_queue = - uword_to_pointer (mp->app_event_queue_address, svm_queue_t *); - - vcm->app_state = STATE_APP_ATTACHED; -} - -static void -vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t * - mp) -{ - if (mp->retval) - clib_warning ("VCL<%d>: detach failed: %U", getpid (), format_api_error, - ntohl (mp->retval)); - - vcm->app_state = STATE_APP_ENABLED; -} - -static void -vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * - mp) -{ - if (mp->retval) - clib_warning ("VCL<%d>: vpp handle 0x%llx: disconnect session failed: %U", - getpid (), mp->handle, format_api_error, - ntohl (mp->retval)); -} - -static void -vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) -{ - static svm_fifo_segment_create_args_t _a; - svm_fifo_segment_create_args_t *a = &_a; - int rv; - - memset (a, 0, sizeof (*a)); - a->segment_name = (char *) mp->segment_name; - a->segment_size = mp->segment_size; - /* Attach to the segment vpp created */ - rv = svm_fifo_segment_attach (a); - vec_reset_length (a->new_segment_indices); - if (PREDICT_FALSE (rv)) - { - clib_warning ("VCL<%d>: svm_fifo_segment_attach ('%s') failed", - getpid (), mp->segment_name); - return; - } - - VDBG (1, "VCL<%d>: mapped new segment '%s' size %d", getpid (), - mp->segment_name, mp->segment_size); -} - -static void -vl_api_unmap_segment_t_handler (vl_api_unmap_segment_t * mp) -{ - -/* - * XXX Need segment_name to session_id hash, - * XXX - have sessionID by handle hash currently - */ - - VDBG (1, "Unmapped segment '%s'", mp->segment_name); -} - -static void -vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) -{ - uword *p; - - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) - { - int rv; - vcl_session_t *session = 0; - u32 session_index = p[0]; - - VCL_SESSION_LOCK_AND_GET (session_index, &session); - session->session_state = STATE_CLOSE_ON_EMPTY; - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: setting state to 0x%x " - "(%s)", getpid (), mp->handle, session_index, - session->session_state, - vppcom_session_state_str (session->session_state)); - VCL_SESSION_UNLOCK (); - return; - - done: - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session lookup failed!", - getpid (), mp->handle, session_index); - } - else - clib_warning ("VCL<%d>: vpp handle 0x%llx: session lookup by " - "handle failed!", getpid (), mp->handle); -} - -static void -vl_api_reset_session_t_handler (vl_api_reset_session_t * mp) -{ - vcl_session_t *session = 0; - vl_api_reset_session_reply_t *rmp; - uword *p; - int rv = 0; - - p = hash_get (vcm->session_index_by_vpp_handles, mp->handle); - if (p) - { - int rval; - VCL_SESSION_LOCK (); - rval = vppcom_session_at_index (p[0], &session); - if (PREDICT_FALSE (rval)) - { - rv = VNET_API_ERROR_INVALID_VALUE_2; - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "session lookup failed! returning %d %U", - getpid (), mp->handle, p[0], - rv, format_api_error, rv); - } - else - { - /* TBD: should this disconnect immediately and - * flush the fifos? - */ - session->session_state = STATE_CLOSE_ON_EMPTY; - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: state set to %d " - "(%s)!", getpid (), mp->handle, p[0], session->session_state, - vppcom_session_state_str (session->session_state)); - } - VCL_SESSION_UNLOCK (); - } - else - { - rv = VNET_API_ERROR_INVALID_VALUE; - clib_warning ("VCL<%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)); - memset (rmp, 0, sizeof (*rmp)); - rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY); - rmp->retval = htonl (rv); - rmp->handle = mp->handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & rmp); -} - -static void -vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp) -{ - vcl_session_t *session = 0; - u32 session_index; - svm_fifo_t *rx_fifo, *tx_fifo; - int rv = VPPCOM_OK; - - session_index = mp->context; - VCL_SESSION_LOCK_AND_GET (session_index, &session); -done: - if (mp->retval) - { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "connect failed! %U", - getpid (), mp->handle, session_index, - format_api_error, ntohl (mp->retval)); - if (session) - { - session->session_state = STATE_FAILED; - session->vpp_handle = mp->handle; - } - else - { - clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " - "Invalid session index (%u)!", - getpid (), mp->handle, session_index); - } - goto done_unlock; - } - - if (rv) - goto done_unlock; - - /* - * Setup session - */ - if (vcm->session_io_thread.io_sessions_lockp) - { - // Add this connection to the active io sessions list - VCL_IO_SESSIONS_LOCK (); - u32 *active_session_index; - pool_get (vcm->session_io_thread.active_session_indexes, - active_session_index); - *active_session_index = session_index; - VCL_IO_SESSIONS_UNLOCK (); - } - session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, - svm_queue_t *); - - rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); - rx_fifo->client_session_index = session_index; - tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - tx_fifo->client_session_index = session_index; - - session->rx_fifo = rx_fifo; - session->tx_fifo = tx_fifo; - session->vpp_handle = mp->handle; - session->transport.is_ip4 = mp->is_ip4; - clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip, - sizeof (session->transport.rmt_ip)); - session->transport.lcl_port = mp->lcl_port; - session->session_state = STATE_CONNECT; - - /* Add it to lookup table */ - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! " - "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d", - getpid (), mp->handle, session_index, session->rx_fifo, - session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt); -done_unlock: - VCL_SESSION_UNLOCK (); -} - -static void -vppcom_send_connect_sock (vcl_session_t * session, u32 session_index) -{ - vl_api_connect_sock_t *cmp; - - /* Assumes caller as acquired the spinlock: vcm->sessions_lockp */ - cmp = vl_msg_api_alloc (sizeof (*cmp)); - memset (cmp, 0, sizeof (*cmp)); - cmp->_vl_msg_id = ntohs (VL_API_CONNECT_SOCK); - cmp->client_index = vcm->my_client_index; - cmp->context = session_index; - - cmp->is_ip4 = session->transport.is_ip4; - clib_memcpy (cmp->ip, &session->transport.rmt_ip, sizeof (cmp->ip)); - cmp->port = session->transport.rmt_port; - cmp->proto = session->session_type; - clib_memcpy (cmp->options, session->options, sizeof (cmp->options)); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & cmp); -} - -static inline void -vppcom_send_disconnect_session_reply (u64 vpp_handle, u32 session_index, - int rv) -{ - vl_api_disconnect_session_reply_t *rmp; - - VDBG (1, "VCL<%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; - - VDBG (1, "VCL<%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 = vpp_handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & dmp); -} - -static void -vl_api_bind_sock_reply_t_handler (vl_api_bind_sock_reply_t * mp) -{ - vcl_session_t *session = 0; - u32 session_index = mp->context; - int rv; - - VCL_SESSION_LOCK_AND_GET (session_index, &session); -done: - if (mp->retval) - { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, " - "sid %u: bind failed: %U", - getpid (), mp->handle, session_index, - format_api_error, ntohl (mp->retval)); - rv = vppcom_session_at_index (session_index, &session); - if (rv == VPPCOM_OK) - { - session->session_state = STATE_FAILED; - session->vpp_handle = mp->handle; - } - else - { - clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " - "Invalid session index (%u)!", - getpid (), mp->handle, session_index); - } - goto done_unlock; - } - - session->vpp_handle = mp->handle; - session->transport.is_ip4 = mp->lcl_is_ip4; - session->transport.lcl_ip = to_ip46 (mp->lcl_is_ip4 ? IP46_TYPE_IP4 : - IP46_TYPE_IP6, mp->lcl_ip); - session->transport.lcl_port = mp->lcl_port; - vppcom_session_table_add_listener (mp->handle, session_index); - session->session_state = STATE_LISTEN; - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!", - getpid (), mp->handle, mp->context); -done_unlock: - VCL_SESSION_UNLOCK (); -} - -static void -vl_api_unbind_sock_reply_t_handler (vl_api_unbind_sock_reply_t * mp) -{ - if (mp->retval) - clib_warning ("VCL<%d>: ERROR: sid %u: unbind failed: %U", - getpid (), mp->context, format_api_error, - ntohl (mp->retval)); - - else - VDBG (1, "VCL<%d>: sid %u: unbind succeeded!", getpid (), mp->context); -} - -u8 * -format_ip4_address (u8 * s, va_list * args) -{ - u8 *a = va_arg (*args, u8 *); - return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]); -} - -u8 * -format_ip6_address (u8 * s, va_list * args) -{ - ip6_address_t *a = va_arg (*args, ip6_address_t *); - u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon; - - i_max_n_zero = ARRAY_LEN (a->as_u16); - max_n_zeros = 0; - i_first_zero = i_max_n_zero; - n_zeros = 0; - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - u32 is_zero = a->as_u16[i] == 0; - if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16)) - { - i_first_zero = i; - n_zeros = 0; - } - n_zeros += is_zero; - if ((!is_zero && n_zeros > max_n_zeros) - || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros)) - { - i_max_n_zero = i_first_zero; - max_n_zeros = n_zeros; - i_first_zero = ARRAY_LEN (a->as_u16); - n_zeros = 0; - } - } - - last_double_colon = 0; - for (i = 0; i < ARRAY_LEN (a->as_u16); i++) - { - if (i == i_max_n_zero && max_n_zeros > 1) - { - s = format (s, "::"); - i += max_n_zeros - 1; - last_double_colon = 1; - } - else - { - s = format (s, "%s%x", - (last_double_colon || i == 0) ? "" : ":", - clib_net_to_host_u16 (a->as_u16[i])); - last_double_colon = 0; - } - } - - return s; -} - -/* Format an IP46 address. */ -u8 * -format_ip46_address (u8 * s, va_list * args) -{ - ip46_address_t *ip46 = va_arg (*args, ip46_address_t *); - ip46_type_t type = va_arg (*args, ip46_type_t); - int is_ip4 = 1; - - switch (type) - { - case IP46_TYPE_ANY: - is_ip4 = ip46_address_is_ip4 (ip46); - break; - case IP46_TYPE_IP4: - is_ip4 = 1; - break; - case IP46_TYPE_IP6: - is_ip4 = 0; - break; - } - - return is_ip4 ? - format (s, "%U", format_ip4_address, &ip46->ip4) : - format (s, "%U", format_ip6_address, &ip46->ip6); -} - -static void -vl_api_accept_session_t_handler (vl_api_accept_session_t * mp) -{ - svm_fifo_t *rx_fifo, *tx_fifo; - vcl_session_t *session, *listen_session; - u32 session_index; - vce_event_connect_request_t *ecr; - vce_event_t *ev; - int rv; - u32 ev_idx; - uword elts = 0; - - VCL_SESSION_LOCK (); - - VCL_ACCEPT_FIFO_LOCK (); - elts = clib_fifo_free_elts (vcm->client_session_index_fifo); - VCL_ACCEPT_FIFO_UNLOCK (); - - if (!elts) - { - clib_warning ("VCL<%d>: client session queue is full!", getpid ()); - vppcom_send_accept_session_reply (mp->handle, mp->context, - VNET_API_ERROR_QUEUE_FULL); - VCL_SESSION_UNLOCK (); - return; - } - - listen_session = vppcom_session_table_lookup_listener (mp->listener_handle); - if (!listen_session) - { - clib_warning ("VCL<%d>: ERROR: couldn't find listen session: " - "unknown vpp listener handle %llx", - getpid (), mp->listener_handle); - vppcom_send_accept_session_reply (mp->handle, mp->context, - VNET_API_ERROR_INVALID_ARGUMENT); - VCL_SESSION_UNLOCK (); - return; - } - - /* TODO check listener depth and update */ - /* TODO on "child" fd close, update listener depth */ - - /* Allocate local session and set it up */ - pool_get (vcm->sessions, session); - memset (session, 0, sizeof (*session)); - session_index = (u32) (session - vcm->sessions); - - rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); - rx_fifo->client_session_index = session_index; - tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - tx_fifo->client_session_index = session_index; - - session->vpp_handle = mp->handle; - session->client_context = mp->context; - session->rx_fifo = rx_fifo; - session->tx_fifo = tx_fifo; - session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, - svm_queue_t *); - session->session_state = STATE_ACCEPT; - session->transport.rmt_port = mp->port; - session->transport.is_ip4 = mp->is_ip4; - session->transport.rmt_ip = to_ip46 (mp->is_ip4 ? IP46_TYPE_IP4 : - IP46_TYPE_IP6, mp->ip); - - /* Add it to lookup table */ - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); - session->transport.lcl_port = listen_session->transport.lcl_port; - session->transport.lcl_ip = listen_session->transport.lcl_ip; - - /* Create an event for handlers */ - - VCL_EVENTS_LOCK (); - - pool_get (vcm->event_thread.vce_events, ev); - ev_idx = (u32) (ev - vcm->event_thread.vce_events); - ecr = vce_get_event_data (ev, sizeof (*ecr)); - ev->evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; - listen_session = vppcom_session_table_lookup_listener (mp->listener_handle); - ev->evk.session_index = (u32) (listen_session - vcm->sessions); - ecr->accepted_session_index = session_index; - - VCL_EVENTS_UNLOCK (); - - rv = vce_generate_event (&vcm->event_thread, ev_idx); - ASSERT (rv == 0); - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s" - " address %U port %d queue %p!", getpid (), mp->handle, session_index, - mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip, - mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, - clib_net_to_host_u16 (mp->port), session->vpp_evt_q); - - vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index); - VCL_SESSION_UNLOCK (); -} - -/* VPP combines bind and listen as one operation. VCL manages the separation - * of bind and listen locally via vppcom_session_bind() and - * vppcom_session_listen() */ -static void -vppcom_send_bind_sock (vcl_session_t * session, u32 session_index) -{ - vl_api_bind_sock_t *bmp; - - /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - bmp = vl_msg_api_alloc (sizeof (*bmp)); - memset (bmp, 0, sizeof (*bmp)); - - bmp->_vl_msg_id = ntohs (VL_API_BIND_SOCK); - bmp->client_index = vcm->my_client_index; - bmp->context = session_index; - bmp->is_ip4 = session->transport.is_ip4; - clib_memcpy (bmp->ip, &session->transport.lcl_ip, sizeof (bmp->ip)); - bmp->port = session->transport.lcl_port; - bmp->proto = session->session_type; - clib_memcpy (bmp->options, session->options, sizeof (bmp->options)); - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & bmp); -} - -static void -vppcom_send_unbind_sock (u64 vpp_handle) -{ - vl_api_unbind_sock_t *ump; - - 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 = vpp_handle; - vl_msg_api_send_shmem (vcm->vl_input_queue, (u8 *) & ump); -} - static int vppcom_session_unbind (u32 session_index) { @@ -1275,7 +308,7 @@ done: return rv; } -static inline int +static int vppcom_session_disconnect (u32 session_index) { int rv; @@ -1327,493 +360,6 @@ done: return rv; } -#define foreach_sock_msg \ -_(SESSION_ENABLE_DISABLE_REPLY, session_enable_disable_reply) \ -_(BIND_SOCK_REPLY, bind_sock_reply) \ -_(UNBIND_SOCK_REPLY, unbind_sock_reply) \ -_(ACCEPT_SESSION, accept_session) \ -_(CONNECT_SESSION_REPLY, connect_session_reply) \ -_(DISCONNECT_SESSION, disconnect_session) \ -_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \ -_(RESET_SESSION, reset_session) \ -_(APPLICATION_ATTACH_REPLY, application_attach_reply) \ -_(APPLICATION_DETACH_REPLY, application_detach_reply) \ -_(MAP_ANOTHER_SEGMENT, map_another_segment) \ -_(UNMAP_SEGMENT, unmap_segment) - -static void -vppcom_api_hookup (void) -{ -#define _(N, n) \ - vl_msg_api_set_handlers(VL_API_##N, #n, \ - vl_api_##n##_t_handler, \ - vl_noop_handler, \ - vl_api_##n##_t_endian, \ - vl_api_##n##_t_print, \ - sizeof(vl_api_##n##_t), 1); - foreach_sock_msg; -#undef _ -} - -static void -vppcom_cfg_init (vppcom_cfg_t * vcl_cfg) -{ - ASSERT (vcl_cfg); - - vcl_cfg->heapsize = (256ULL << 20); - vcl_cfg->vpp_api_q_length = 1024; - vcl_cfg->segment_baseva = 0x200000000ULL; - vcl_cfg->segment_size = (256 << 20); - vcl_cfg->add_segment_size = (128 << 20); - vcl_cfg->preallocated_fifo_pairs = 8; - vcl_cfg->rx_fifo_size = (1 << 20); - vcl_cfg->tx_fifo_size = (1 << 20); - vcl_cfg->event_queue_size = 2048; - vcl_cfg->listen_queue_size = CLIB_CACHE_LINE_BYTES / sizeof (u32); - vcl_cfg->app_timeout = 10 * 60.0; - vcl_cfg->session_timeout = 10 * 60.0; - vcl_cfg->accept_timeout = 60.0; - vcl_cfg->event_ring_size = (128 << 10); - vcl_cfg->event_log_path = "/dev/shm"; -} - -static void -vppcom_cfg_heapsize (char *conf_fname) -{ - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - FILE *fp; - char inbuf[4096]; - int argc = 1; - char **argv = NULL; - char *arg = NULL; - char *p; - int i; - u8 *sizep; - u32 size; - void *vcl_mem; - void *heap; - - fp = fopen (conf_fname, "r"); - if (fp == NULL) - { - VDBG (0, "VCL<%d>: using default heapsize %lld (0x%llx)", getpid (), - vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - - argv = calloc (1, sizeof (char *)); - if (argv == NULL) - { - VDBG (0, "VCL<%d>: calloc failed, using default heapsize %lld (0x%llx)", - getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - - while (1) - { - if (fgets (inbuf, 4096, fp) == 0) - break; - p = strtok (inbuf, " \t\n"); - while (p != NULL) - { - if (*p == '#') - break; - argc++; - char **tmp = realloc (argv, argc * sizeof (char *)); - if (tmp == NULL) - { - VDBG (0, "VCL<%d>: realloc failed, using default heapsize %lld " - "(0x%llx)", getpid (), vcl_cfg->heapsize, - vcl_cfg->heapsize); - goto defaulted; - } - argv = tmp; - arg = strndup (p, 1024); - if (arg == NULL) - { - VDBG (0, "VCL<%d>: strndup failed, using default heapsize %lld " - "(0x%llx)", getpid (), vcl_cfg->heapsize, - vcl_cfg->heapsize); - goto defaulted; - } - argv[argc - 1] = arg; - p = strtok (NULL, " \t\n"); - } - } - - fclose (fp); - fp = NULL; - - char **tmp = realloc (argv, (argc + 1) * sizeof (char *)); - if (tmp == NULL) - { - VDBG (0, "VCL<%d>: realloc failed, using default heapsize %lld " - "(0x%llx)", getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - argv = tmp; - argv[argc] = NULL; - - /* - * Look for and parse the "heapsize" config parameter. - * Manual since none of the clib infra has been bootstrapped yet. - * - * Format: heapsize <nn>[mM][gG] - */ - - for (i = 1; i < (argc - 1); i++) - { - if (!strncmp (argv[i], "heapsize", 8)) - { - sizep = (u8 *) argv[i + 1]; - size = 0; - while (*sizep >= '0' && *sizep <= '9') - { - size *= 10; - size += *sizep++ - '0'; - } - if (size == 0) - { - VDBG (0, "VCL<%d>: parse error '%s %s', using default " - "heapsize %lld (0x%llx)", getpid (), argv[i], argv[i + 1], - vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - - if (*sizep == 'g' || *sizep == 'G') - vcl_cfg->heapsize = size << 30; - else if (*sizep == 'm' || *sizep == 'M') - vcl_cfg->heapsize = size << 20; - else - { - VDBG (0, "VCL<%d>: parse error '%s %s', using default " - "heapsize %lld (0x%llx)", getpid (), argv[i], argv[i + 1], - vcl_cfg->heapsize, vcl_cfg->heapsize); - goto defaulted; - } - } - } - -defaulted: - if (fp != NULL) - fclose (fp); - if (argv != NULL) - free (argv); - - vcl_mem = mmap (0, vcl_cfg->heapsize, PROT_READ | PROT_WRITE, - MAP_SHARED | MAP_ANONYMOUS, -1, 0); - if (vcl_mem == MAP_FAILED) - { - clib_unix_error ("VCL<%d>: ERROR: mmap(0, %lld == 0x%llx, " - "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, " - "-1, 0) failed!", - getpid (), vcl_cfg->heapsize, vcl_cfg->heapsize); - ASSERT (vcl_mem != MAP_FAILED); - return; - } - heap = clib_mem_init (vcl_mem, vcl_cfg->heapsize); - if (!heap) - { - clib_warning ("VCL<%d>: ERROR: clib_mem_init() failed!", getpid ()); - ASSERT (heap); - return; - } - vcl_mem = clib_mem_alloc (sizeof (_vppcom_main)); - if (!vcl_mem) - { - clib_warning ("VCL<%d>: ERROR: clib_mem_alloc() failed!", getpid ()); - ASSERT (vcl_mem); - return; - } - - clib_memcpy (vcl_mem, &_vppcom_main, sizeof (_vppcom_main)); - vcm = vcl_mem; - - VDBG (0, "VCL<%d>: allocated VCL heap = %p, size %lld (0x%llx)", getpid (), - heap, vcl_cfg->heapsize, vcl_cfg->heapsize); -} - -static void -vppcom_cfg_read (char *conf_fname) -{ - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - int fd; - unformat_input_t _input, *input = &_input; - unformat_input_t _line_input, *line_input = &_line_input; - u8 vc_cfg_input = 0; - u8 *chroot_path; - struct stat s; - u32 uid, gid, q_len; - - fd = open (conf_fname, O_RDONLY); - if (fd < 0) - { - VDBG (0, "VCL<%d>: using default configuration.", getpid (), - conf_fname); - goto file_done; - } - - if (fstat (fd, &s) < 0) - { - VDBG (0, "VCL<%d>: failed to stat `%s', using default configuration", - getpid (), conf_fname); - goto file_done; - } - - if (!(S_ISREG (s.st_mode) || S_ISLNK (s.st_mode))) - { - VDBG (0, "VCL<%d>: not a regular file `%s', using default " - "configuration", getpid (), conf_fname); - goto file_done; - } - - unformat_init_clib_file (input, fd); - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - (void) unformat_user (input, unformat_line_input, line_input); - unformat_skip_white_space (line_input); - - if (unformat (line_input, "vcl {")) - { - vc_cfg_input = 1; - continue; - } - - if (vc_cfg_input) - { - if (unformat (line_input, "heapsize %s", &chroot_path)) - { - vec_terminate_c_string (chroot_path); - VDBG (0, "VCL<%d>: configured heapsize %s, actual heapsize %lld" - " (0x%llx)", getpid (), chroot_path, vcl_cfg->heapsize, - vcl_cfg->heapsize); - vec_free (chroot_path); - } - else if (unformat (line_input, "api-prefix %s", &chroot_path)) - { - vec_terminate_c_string (chroot_path); - if (vcl_cfg->vpp_api_filename) - vec_free (vcl_cfg->vpp_api_filename); - vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c", - chroot_path, 0); - vl_set_memory_root_path ((char *) chroot_path); - - VDBG (0, "VCL<%d>: configured api-prefix (%s) and api filename" - " (%s)", getpid (), chroot_path, - vcl_cfg->vpp_api_filename); - chroot_path = 0; /* Don't vec_free() it! */ - } - else if (unformat (line_input, "vpp-api-q-length %d", &q_len)) - { - if (q_len < vcl_cfg->vpp_api_q_length) - { - clib_warning ("VCL<%d>: ERROR: configured vpp-api-q-length " - "(%u) is too small! Using default: %u ", - getpid (), q_len, vcl_cfg->vpp_api_q_length); - } - else - { - vcl_cfg->vpp_api_q_length = q_len; - - VDBG (0, "VCL<%d>: configured vpp-api-q-length %u", - getpid (), vcl_cfg->vpp_api_q_length); - } - } - else if (unformat (line_input, "uid %d", &uid)) - { - vl_set_memory_uid (uid); - VDBG (0, "VCL<%d>: configured uid %d", getpid (), uid); - } - else if (unformat (line_input, "gid %d", &gid)) - { - vl_set_memory_gid (gid); - VDBG (0, "VCL<%d>: configured gid %d", getpid (), gid); - } - else if (unformat (line_input, "segment-baseva 0x%lx", - &vcl_cfg->segment_baseva)) - { - VDBG (0, "VCL<%d>: configured segment_baseva 0x%lx", getpid (), - vcl_cfg->segment_baseva); - } - else if (unformat (line_input, "segment-size 0x%lx", - &vcl_cfg->segment_size)) - { - VDBG (0, "VCL<%d>: configured segment_size 0x%lx (%ld)", - getpid (), vcl_cfg->segment_size, vcl_cfg->segment_size); - } - else if (unformat (line_input, "segment-size %ld", - &vcl_cfg->segment_size)) - { - VDBG (0, "VCL<%d>: configured segment_size %ld (0x%lx)", - getpid (), vcl_cfg->segment_size, vcl_cfg->segment_size); - } - else if (unformat (line_input, "add-segment-size 0x%lx", - &vcl_cfg->add_segment_size)) - { - VDBG (0, "VCL<%d>: configured add_segment_size 0x%lx (%ld)", - getpid (), vcl_cfg->add_segment_size, - vcl_cfg->add_segment_size); - } - else if (unformat (line_input, "add-segment-size %ld", - &vcl_cfg->add_segment_size)) - { - VDBG (0, "VCL<%d>: configured add_segment_size %ld (0x%lx)", - getpid (), vcl_cfg->add_segment_size, - vcl_cfg->add_segment_size); - } - else if (unformat (line_input, "preallocated-fifo-pairs %d", - &vcl_cfg->preallocated_fifo_pairs)) - { - VDBG (0, "VCL<%d>: configured preallocated_fifo_pairs %d " - "(0x%x)", getpid (), vcl_cfg->preallocated_fifo_pairs, - vcl_cfg->preallocated_fifo_pairs); - } - else if (unformat (line_input, "rx-fifo-size 0x%lx", - &vcl_cfg->rx_fifo_size)) - { - VDBG (0, "VCL<%d>: configured rx_fifo_size 0x%lx (%ld)", - getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); - } - else if (unformat (line_input, "rx-fifo-size %ld", - &vcl_cfg->rx_fifo_size)) - { - VDBG (0, "VCL<%d>: configured rx_fifo_size %ld (0x%lx)", - getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); - } - else if (unformat (line_input, "tx-fifo-size 0x%lx", - &vcl_cfg->tx_fifo_size)) - { - VDBG (0, "VCL<%d>: configured tx_fifo_size 0x%lx (%ld)", - getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); - } - else if (unformat (line_input, "tx-fifo-size %ld", - &vcl_cfg->tx_fifo_size)) - { - VDBG (0, "VCL<%d>: configured tx_fifo_size %ld (0x%lx)", - getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); - } - else if (unformat (line_input, "event-queue-size 0x%lx", - &vcl_cfg->event_queue_size)) - { - VDBG (0, "VCL<%d>: configured event_queue_size 0x%lx (%ld)", - getpid (), vcl_cfg->event_queue_size, - vcl_cfg->event_queue_size); - } - else if (unformat (line_input, "event-queue-size %ld", - &vcl_cfg->event_queue_size)) - { - VDBG (0, "VCL<%d>: configured event_queue_size %ld (0x%lx)", - getpid (), vcl_cfg->event_queue_size, - vcl_cfg->event_queue_size); - } - else if (unformat (line_input, "listen-queue-size 0x%lx", - &vcl_cfg->listen_queue_size)) - { - VDBG (0, "VCL<%d>: configured listen_queue_size 0x%lx (%ld)", - getpid (), vcl_cfg->listen_queue_size, - vcl_cfg->listen_queue_size); - } - else if (unformat (line_input, "listen-queue-size %ld", - &vcl_cfg->listen_queue_size)) - { - VDBG (0, "VCL<%d>: configured listen_queue_size %ld (0x%lx)", - getpid (), vcl_cfg->listen_queue_size, - vcl_cfg->listen_queue_size); - } - else if (unformat (line_input, "app-timeout %f", - &vcl_cfg->app_timeout)) - { - VDBG (0, "VCL<%d>: configured app_timeout %f", - getpid (), vcl_cfg->app_timeout); - } - else if (unformat (line_input, "session-timeout %f", - &vcl_cfg->session_timeout)) - { - VDBG (0, "VCL<%d>: configured session_timeout %f", - getpid (), vcl_cfg->session_timeout); - } - else if (unformat (line_input, "accept-timeout %f", - &vcl_cfg->accept_timeout)) - { - VDBG (0, "VCL<%d>: configured accept_timeout %f", - getpid (), vcl_cfg->accept_timeout); - } - else if (unformat (line_input, "app-proxy-transport-tcp")) - { - vcl_cfg->app_proxy_transport_tcp = 1; - VDBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%d)", - getpid (), vcl_cfg->app_proxy_transport_tcp); - } - else if (unformat (line_input, "app-proxy-transport-udp")) - { - vcl_cfg->app_proxy_transport_udp = 1; - VDBG (0, "VCL<%d>: configured app_proxy_transport_udp (%d)", - getpid (), vcl_cfg->app_proxy_transport_udp); - } - else if (unformat (line_input, "app-scope-local")) - { - vcl_cfg->app_scope_local = 1; - VDBG (0, "VCL<%d>: configured app_scope_local (%d)", - getpid (), vcl_cfg->app_scope_local); - } - else if (unformat (line_input, "app-scope-global")) - { - vcl_cfg->app_scope_global = 1; - VDBG (0, "VCL<%d>: configured app_scope_global (%d)", - getpid (), vcl_cfg->app_scope_global); - } - else if (unformat (line_input, "namespace-secret %lu", - &vcl_cfg->namespace_secret)) - { - VDBG (0, "VCL<%d>: configured namespace_secret %lu (0x%lx)", - getpid (), vcl_cfg->namespace_secret, - vcl_cfg->namespace_secret); - } - else if (unformat (line_input, "namespace-id %v", - &vcl_cfg->namespace_id)) - { - vl_api_application_attach_t *mp; - u32 max_nsid_vec_len = sizeof (mp->namespace_id) - 1; - u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id); - if (nsid_vec_len > max_nsid_vec_len) - { - _vec_len (vcl_cfg->namespace_id) = max_nsid_vec_len; - VDBG (0, "VCL<%d>: configured namespace_id is too long," - " truncated to %d characters!", - getpid (), max_nsid_vec_len); - } - - VDBG (0, "VCL<%d>: configured namespace_id %v", - getpid (), vcl_cfg->namespace_id); - } - else if (unformat (line_input, "}")) - { - vc_cfg_input = 0; - VDBG (0, "VCL<%d>: completed parsing vppcom config!", - getpid ()); - goto input_done; - } - else - { - if (line_input->buffer[line_input->index] != '#') - { - clib_warning ("VCL<%d>: Unknown vppcom config option: '%s'", - getpid (), (char *) - &line_input->buffer[line_input->index]); - } - } - } - } - -input_done: - unformat_free (input); - -file_done: - if (fd >= 0) - close (fd); -} - /* * VPPCOM Public API functions */ @@ -1827,113 +373,17 @@ vppcom_app_create (char *app_name) if (!vcm->init) { - char *conf_fname; - char *env_var_str; - vcm->init = 1; - vppcom_cfg_init (vcl_cfg); - env_var_str = getenv (VPPCOM_ENV_DEBUG); - if (env_var_str) - { - u32 tmp; - if (sscanf (env_var_str, "%u", &tmp) != 1) - clib_warning ("VCL<%d>: WARNING: Invalid debug level specified " - "in the environment variable " VPPCOM_ENV_DEBUG - " (%s)!\n", getpid (), env_var_str); - else - { - vcm->debug = tmp; - VDBG (0, "VCL<%d>: configured VCL debug level (%u) from " - VPPCOM_ENV_DEBUG "!", getpid (), vcm->debug); - } - } - conf_fname = getenv (VPPCOM_ENV_CONF); - if (!conf_fname) - conf_fname = VPPCOM_CONF_DEFAULT; - vppcom_cfg_heapsize (conf_fname); - vcl_cfg = &vcm->cfg; clib_spinlock_init (&vcm->session_fifo_lockp); clib_fifo_validate (vcm->client_session_index_fifo, vcm->cfg.listen_queue_size); - vppcom_cfg_read (conf_fname); - - - env_var_str = getenv (VPPCOM_ENV_API_PREFIX); - if (env_var_str) - { - if (vcl_cfg->vpp_api_filename) - vec_free (vcl_cfg->vpp_api_filename); - vcl_cfg->vpp_api_filename = format (0, "/%s-vpe-api%c", - env_var_str, 0); - vl_set_memory_root_path ((char *) env_var_str); - - VDBG (0, "VCL<%d>: configured api prefix (%s) and filename (%s) " - "from " VPPCOM_ENV_API_PREFIX "!", - getpid (), env_var_str, vcl_cfg->vpp_api_filename); - } - env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_ID); - if (env_var_str) - { - u32 ns_id_vec_len = strlen (env_var_str); + clib_spinlock_init (&vcm->sessions_lockp); - vec_reset_length (vcm->cfg.namespace_id); - vec_validate (vcm->cfg.namespace_id, ns_id_vec_len - 1); - clib_memcpy (vcm->cfg.namespace_id, env_var_str, ns_id_vec_len); - - VDBG (0, "VCL<%d>: configured namespace_id (%v) from " - VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), - vcm->cfg.namespace_id); - } - env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET); - if (env_var_str) - { - u64 tmp; - if (sscanf (env_var_str, "%lu", &tmp) != 1) - clib_warning ("VCL<%d>: WARNING: Invalid namespace secret " - "specified in the environment variable " - VPPCOM_ENV_APP_NAMESPACE_SECRET - " (%s)!\n", getpid (), env_var_str); - else - { - vcm->cfg.namespace_secret = tmp; - VDBG (0, "VCL<%d>: configured namespace secret (%lu) from " - VPPCOM_ENV_APP_NAMESPACE_SECRET "!", getpid (), - vcm->cfg.namespace_secret); - } - } - if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP)) - { - vcm->cfg.app_proxy_transport_tcp = 1; - VDBG (0, "VCL<%d>: configured app_proxy_transport_tcp (%u) from " - VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP "!", getpid (), - vcm->cfg.app_proxy_transport_tcp); - } - if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP)) - { - vcm->cfg.app_proxy_transport_udp = 1; - VDBG (0, "VCL<%d>: configured app_proxy_transport_udp (%u) from " - VPPCOM_ENV_APP_PROXY_TRANSPORT_UDP "!", getpid (), - vcm->cfg.app_proxy_transport_udp); - } - if (getenv (VPPCOM_ENV_APP_SCOPE_LOCAL)) - { - vcm->cfg.app_scope_local = 1; - VDBG (0, "VCL<%d>: configured app_scope_local (%u) from " - VPPCOM_ENV_APP_SCOPE_LOCAL "!", getpid (), - vcm->cfg.app_scope_local); - } - if (getenv (VPPCOM_ENV_APP_SCOPE_GLOBAL)) - { - vcm->cfg.app_scope_global = 1; - VDBG (0, "VCL<%d>: configured app_scope_global (%u) from " - VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (), - vcm->cfg.app_scope_global); - } + vppcom_cfg (&vcm->cfg); vcm->main_cpu = os_get_thread_index (); heap = clib_mem_get_per_cpu_heap (); h = mheap_header (heap); - /* make the main heap thread-safe */ h->flags |= MHEAP_FLAG_THREAD_SAFE; @@ -1943,12 +393,10 @@ vppcom_app_create (char *app_name) vppcom_init_error_string_table (); svm_fifo_segment_main_init (vcl_cfg->segment_baseva, 20 /* timeout in secs */ ); - clib_spinlock_init (&vcm->sessions_lockp); } if (vcm->my_client_index == ~0) { - /* API hookup and connect to VPP */ vppcom_api_hookup (); vcl_elog_init (vcm); @@ -2005,7 +453,7 @@ vppcom_app_destroy (void) getpid (), vcm->my_client_index, vcm->my_client_index); vcl_evt (VCL_EVT_DETACH, vcm); - vppcom_app_detach (); + vppcom_app_send_detach (); orig_app_timeout = vcm->cfg.app_timeout; vcm->cfg.app_timeout = 2.0; rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED); @@ -4311,270 +2759,6 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) } /* - * VPPCOM Event Functions - */ - -void * -vppcom_session_io_thread_fn (void *arg) -{ - vppcom_session_io_thread_t *evt = (vppcom_session_io_thread_t *) arg; - u32 *session_indexes = 0, *session_index; - int i, rv; - u32 bytes = 0; - vcl_session_t *session; - - while (1) - { - vec_reset_length (session_indexes); - VCE_IO_SESSIONS_LOCK (); - pool_foreach (session_index, evt->active_session_indexes, ( - { - vec_add1 - (session_indexes, - *session_index); - } - )); - VCE_IO_SESSIONS_UNLOCK (); - if (session_indexes) - { - for (i = 0; i < vec_len (session_indexes); ++i) - { - VCL_SESSION_LOCK_AND_GET (session_indexes[i], &session); - bytes = svm_fifo_max_dequeue (session->rx_fifo); - VCL_SESSION_UNLOCK (); - - if (bytes) - { - vppcom_ioevent_t *eio; - vce_event_t *ev; - u32 ev_idx; - - VCL_EVENTS_LOCK (); - - pool_get (vcm->event_thread.vce_events, ev); - ev_idx = (u32) (ev - vcm->event_thread.vce_events); - eio = vce_get_event_data (ev, sizeof (*eio)); - ev->evk.eid = VCL_EVENT_IOEVENT_RX_FIFO; - ev->evk.session_index = session_indexes[i]; - eio->bytes = bytes; - eio->session_index = session_indexes[i]; - - VCL_EVENTS_UNLOCK (); - - rv = vce_generate_event (&vcm->event_thread, ev_idx); - } - } - } - struct timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 1000000; /* 1 millisecond */ - nanosleep (&ts, NULL); - } -done: - VCL_SESSION_UNLOCK (); - return NULL; -} - -int -vppcom_start_io_event_thread (vppcom_session_io_thread_t * evt, - u8 max_sessions) -{ - pthread_cond_init (&(evt->vce_io_cond), NULL); - pthread_mutex_init (&(evt->vce_io_lock), NULL); - - clib_spinlock_init (&(evt->io_sessions_lockp)); - - return pthread_create (&(evt->thread), NULL /* attr */ , - vppcom_session_io_thread_fn, evt); -} - -void -vce_registered_ioevent_handler_fn (void *arg) -{ - vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; - vppcom_ioevent_t *eio; - vce_event_t *ev; - u32 ioevt_ndx = (u64) (reg->handler_fn_args); - vppcom_session_ioevent_t *ioevent, ioevent_; - - VCL_EVENTS_LOCK (); - ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); - eio = vce_get_event_data (ev, sizeof (*eio)); - VCL_EVENTS_UNLOCK (); - - VCL_IO_SESSIONS_LOCK (); - ioevent = pool_elt_at_index (vcm->session_io_thread.ioevents, ioevt_ndx); - ioevent_ = *ioevent; - VCL_IO_SESSIONS_UNLOCK (); - (ioevent_.user_cb) (eio, ioevent_.user_cb_data); - vce_clear_event (&vcm->event_thread, reg->ev_idx); - return; - - /*TODO - Unregister check in close for this listener */ - -} - -void -vce_registered_listener_connect_handler_fn (void *arg) -{ - vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; - vce_event_connect_request_t *ecr; - vce_event_t *ev; - vppcom_endpt_t ep; - - vcl_session_t *new_session; - int rv; - - vppcom_session_listener_t *session_listener = - (vppcom_session_listener_t *) reg->handler_fn_args; - - VCL_EVENTS_LOCK (); - ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); - ecr = vce_get_event_data (ev, sizeof (*ecr)); - VCL_EVENTS_UNLOCK (); - VCL_SESSION_LOCK_AND_GET (ecr->accepted_session_index, &new_session); - - ep.is_ip4 = new_session->transport.is_ip4; - ep.port = new_session->transport.rmt_port; - if (new_session->transport.is_ip4) - clib_memcpy (&ep.ip, &new_session->transport.rmt_ip.ip4, - sizeof (ip4_address_t)); - else - clib_memcpy (&ep.ip, &new_session->transport.rmt_ip.ip6, - sizeof (ip6_address_t)); - - vppcom_send_accept_session_reply (new_session->vpp_handle, - new_session->client_context, - 0 /* retval OK */ ); - VCL_SESSION_UNLOCK (); - - (session_listener->user_cb) (ecr->accepted_session_index, &ep, - session_listener->user_cb_data); - - if (vcm->session_io_thread.io_sessions_lockp) - { - /* Throw this new accepted session index into the rx poll thread pool */ - VCL_IO_SESSIONS_LOCK (); - u32 *active_session_index; - pool_get (vcm->session_io_thread.active_session_indexes, - active_session_index); - *active_session_index = ecr->accepted_session_index; - VCL_IO_SESSIONS_UNLOCK (); - } - - /*TODO - Unregister check in close for this listener */ - return; - -done: - ASSERT (0); // If we can't get a lock or accepted session fails, lets blow up. -} - -/** - * @brief vce_poll_wait_connect_request_handler_fn - * - used by vppcom_epoll_xxxx() for listener sessions - * - when a vl_api_accept_session_t_handler() generates an event - * this callback is alerted and sets the fields that vppcom_epoll_wait() - * expects to see. - * - * @param arg - void* to be cast to vce_event_handler_reg_t* - */ -void -vce_poll_wait_connect_request_handler_fn (void *arg) -{ - vce_event_handler_reg_t *reg = (vce_event_handler_reg_t *) arg; - vce_event_t *ev; - /* Retrieve the VCL_EVENT_CONNECT_REQ_ACCEPTED event */ - ev = vce_get_event_from_index (&vcm->event_thread, reg->ev_idx); - vce_event_connect_request_t *ecr = vce_get_event_data (ev, sizeof (*ecr)); - - /* Add the accepted_session_index to the FIFO */ - VCL_ACCEPT_FIFO_LOCK (); - clib_fifo_add1 (vcm->client_session_index_fifo, - ecr->accepted_session_index); - VCL_ACCEPT_FIFO_UNLOCK (); - - /* Recycling the event. */ - VCL_EVENTS_LOCK (); - ev->recycle = 1; - clib_fifo_add1 (vcm->event_thread.event_index_fifo, reg->ev_idx); - VCL_EVENTS_UNLOCK (); -} - -int -vppcom_session_register_ioevent_cb (uint32_t session_index, - vppcom_session_ioevent_cb cb, - uint8_t rx, void *ptr) -{ - int rv = VPPCOM_OK; - vce_event_key_t evk; - vppcom_session_ioevent_t *ioevent; - - if (!vcm->session_io_thread.io_sessions_lockp) - rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100 /* DAW_TODO: ??? hard-coded value */ - ); - - if (rv == VPPCOM_OK) - { - void *io_evt_ndx; - - /* Register handler for ioevent on session_index */ - VCL_IO_SESSIONS_LOCK (); - pool_get (vcm->session_io_thread.ioevents, ioevent); - io_evt_ndx = (void *) (ioevent - vcm->session_io_thread.ioevents); - ioevent->user_cb = cb; - ioevent->user_cb_data = ptr; - VCL_IO_SESSIONS_UNLOCK (); - - evk.session_index = session_index; - evk.eid = rx ? VCL_EVENT_IOEVENT_RX_FIFO : VCL_EVENT_IOEVENT_TX_FIFO; - - (void) vce_register_handler (&vcm->event_thread, &evk, - vce_registered_ioevent_handler_fn, - io_evt_ndx); - } - return rv; -} - -int -vppcom_session_register_listener (uint32_t session_index, - vppcom_session_listener_cb cb, - vppcom_session_listener_errcb - errcb, uint8_t flags, int q_len, void *ptr) -{ - int rv = VPPCOM_OK; - vce_event_key_t evk; - vppcom_session_listener_t *listener_args; - - if (!vcm->session_io_thread.io_sessions_lockp) - rv = vppcom_start_io_event_thread (&vcm->session_io_thread, 100 /* DAW_TODO: ??? hard-coded value */ - ); - if (rv) - { - goto done; - } - rv = vppcom_session_listen (session_index, q_len); - if (rv) - { - goto done; - } - - /* Register handler for connect_request event on listen_session_index */ - listener_args = clib_mem_alloc (sizeof (vppcom_session_listener_t)); // DAW_TODO: Use a pool instead of thrashing the memory allocator! - listener_args->user_cb = cb; - listener_args->user_cb_data = ptr; - listener_args->user_errcb = errcb; - - evk.session_index = session_index; - evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED; - (void) vce_register_handler (&vcm->event_thread, &evk, - vce_registered_listener_connect_handler_fn, - listener_args); - -done: - return rv; -} - -/* * fd.io coding-style-patch-verification: ON * * Local Variables: |