/* *------------------------------------------------------------------ * memory_client.c - API message handling, client code. * * Copyright (c) 2010 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * 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 #include #include #include #include #include #include /* A hack. vl_client_get_first_plugin_msg_id depends on it */ #include #include #define vl_typedefs /* define message structures */ #include #undef vl_typedefs #define vl_endianfun /* define message structures */ #include #undef vl_endianfun /* instantiate all the print functions we know about */ #define vl_print(handle, ...) clib_warning (__VA_ARGS__) #define vl_printfun #include #undef vl_printfun memory_client_main_t memory_client_main; __thread memory_client_main_t *my_memory_client_main = &memory_client_main; typedef struct rx_thread_fn_arg { api_main_t *am; memory_client_main_t *mm; } rx_thread_fn_arg_t; static void * rx_thread_fn (void *arg) { rx_thread_fn_arg_t *a = (rx_thread_fn_arg_t *) arg; memory_client_main_t *mm; svm_queue_t *q; vlibapi_set_main (a->am); vlibapi_set_memory_client_main (a->mm); free (a); mm = vlibapi_get_memory_client_main (); q = vlibapi_get_main ()->vl_input_queue; /* So we can make the rx thread terminate cleanly */ if (setjmp (mm->rx_thread_jmpbuf) == 0) { mm->rx_thread_jmpbuf_valid = 1; clib_mem_set_thread_index (); while (1) vl_msg_api_queue_handler (q); } pthread_exit (0); } static void vl_api_rx_thread_exit_t_handler (vl_api_rx_thread_exit_t * mp) { memory_client_main_t *mm = vlibapi_get_memory_client_main (); if (mm->rx_thread_jmpbuf_valid) longjmp (mm->rx_thread_jmpbuf, 1); } static void vl_api_name_and_crc_free (void) { api_main_t *am = vlibapi_get_main (); int i; u8 **keys = 0; hash_pair_t *hp; if (!am->msg_index_by_name_and_crc) return; /* *INDENT-OFF* */ hash_foreach_pair (hp, am->msg_index_by_name_and_crc, ({ vec_add1 (keys, (u8 *) hp->key); })); /* *INDENT-ON* */ for (i = 0; i < vec_len (keys); i++) vec_free (keys[i]); vec_free (keys); hash_free (am->msg_index_by_name_and_crc); } CLIB_NOSANITIZE_ADDR static void VL_API_VEC_UNPOISON (const void *v) { const vec_header_t *vh = &((vec_header_t *) v)[-1]; CLIB_MEM_UNPOISON (vh, sizeof (*vh) + vec_len (v)); } static void vl_api_memclnt_create_reply_t_handler (vl_api_memclnt_create_reply_t * mp) { serialize_main_t _sm, *sm = &_sm; api_main_t *am = vlibapi_get_main (); u8 *tblv; u32 nmsgs; int i; u8 *name_and_crc; u32 msg_index; am->my_client_index = mp->index; am->my_registration = (vl_api_registration_t *) (uword) mp->handle; /* Clean out any previous hash table (unlikely) */ vl_api_name_and_crc_free (); am->msg_index_by_name_and_crc = hash_create_string (0, sizeof (uword)); /* Recreate the vnet-side API message handler table */ tblv = uword_to_pointer (mp->message_table, u8 *); unserialize_open_data (sm, tblv, vec_len (tblv)); unserialize_integer (sm, &nmsgs, sizeof (u32)); VL_API_VEC_UNPOISON (tblv); for (i = 0; i < nmsgs; i++) { msg_index = unserialize_likely_small_unsigned_integer (sm); unserialize_cstring (sm, (char **) &name_and_crc); hash_set_mem (am->msg_index_by_name_and_crc, name_and_crc, msg_index); } } static void noop_handler (void *notused) { } void vl_msg_api_send_shmem (svm_queue_t * q, u8 * elem); int vl_client_connect (const char *name, int ctx_quota, int input_queue_size) { vl_api_memclnt_create_t *mp; vl_api_memclnt_create_reply_t *rp; svm_queue_t *vl_input_queue; vl_shmem_hdr_t *shmem_hdr; int rv = 0; void *oldheap; api_main_t *am = vlibapi_get_main (); if (am->my_registration) { clib_warning ("client %s already connected...", name); return -1; } if (am->vlib_rp == 0) { clib_warning ("am->vlib_rp NULL"); return -1; } shmem_hdr = am->shmem_hdr; if (shmem_hdr == 0 || shmem_hdr->vl_input_queue == 0) { clib_warning ("shmem_hdr / input queue NULL"); return -1; } CLIB_MEM_UNPOISON (shmem_hdr, sizeof (*shmem_hdr)); VL_MSG_API_SVM_QUEUE_UNPOISON (shmem_hdr->vl_input_queue); oldheap = vl_msg_push_heap (); vl_input_queue = svm_queue_alloc_and_init (input_queue_size, sizeof (uword), getpid ()); vl_msg_pop_heap (oldheap); am->my_client_index = ~0; am->my_registration = 0; am->vl_input_queue = vl_input_queue; mp = vl_msg_api_alloc (sizeof (vl_api_memclnt_create_t)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_MEMCLNT_CREATE); mp->ctx_quota = ctx_quota; mp->input_queue = (uword) vl_input_queue; strncpy ((char *) mp->name, name, sizeof (mp->name) - 1); vl_msg_api_send_shmem (shmem_hdr->vl_input_queue, (u8 *) & mp); while (1) { int qstatus; struct timespec ts, tsrem; int i; /* Wait up to 10 seconds */ for (i = 0; i < 1000; i++) { qstatus = svm_queue_sub (vl_input_queue, (u8 *) & rp, SVM_Q_NOWAIT, 0); if (qstatus == 0) goto read_one_msg; ts.tv_sec = 0; ts.tv_nsec = 10000 * 1000; /* 10 ms */ while (nanosleep (&ts, &tsrem) < 0) ts = tsrem; } /* Timeout... */ clib_warning ("memclnt_create_reply timeout"); return -1; read_one_msg: VL_MSG_API_UNPOISON (rp); if (ntohs (rp->_vl_msg_id) != VL_API_MEMCLNT_CREATE_REPLY) { clib_warning ("unexpected reply: id %d", ntohs (rp->_vl_msg_id)); continue; } rv = clib_net_to_host_u32 (rp->response); vl_msg_api_handler ((void *) rp); break; } return (rv); } static void vl_api_memclnt_delete_reply_t_handler (vl_api_memclnt_delete_reply_t * mp) { void *oldheap; api_main_t *am = vlibapi_get_main (); oldheap = vl_msg_push_heap (); svm_queue_free (am->vl_input_queue); vl_msg_pop_heap (oldheap); am->my_client_index = ~0; am->my_registration = 0; am->vl_input_queue = 0; } void vl_client_send_disconnect (u8 do_cleanup) { vl_api_memclnt_delete_t *mp; vl_shmem_hdr_t *shmem_hdr; api_main_t *am = vlibapi_get_main (); ASSERT (am->vlib_rp); shmem_hdr = am->shmem_hdr; ASSERT (shmem_hdr && shmem_hdr->vl_input_queue); 
# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# 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.

##############################################################################
# vpp builtin hs apps
##############################################################################
add_vpp_plugin(hs_apps
  SOURCES
  echo_client.c
  echo_server.c
  hs_apps.c
  http_server.c
  proxy.c
)

##############################################################################
# vpp external hs apps that use the "raw" session layer api
##############################################################################
option(VPP_BUILD_HS_SAPI_APPS "Build hs apps that use the session api." ON)
if(VPP_BUILD_HS_SAPI_APPS)
  add_vpp_executable(vpp_echo
    SOURCES
    sapi/vpp_echo.c
    sapi/vpp_echo_common.c
    sapi/vpp_echo_bapi.c
    sapi/vpp_echo_proto_quic.c
    sapi/vpp_echo_proto_tcp.c
    sapi/vpp_echo_proto_udp.c
    LINK_LIBRARIES vlibmemoryclient svm vppinfra pthread m rt
    DEPENDS api_headers
  )
endif(VPP_BUILD_HS_SAPI_APPS)

##############################################################################
# vcl tests
##############################################################################
option(VPP_BUILD_VCL_TESTS "Build vcl tests." ON)
if(VPP_BUILD_VCL_TESTS)
  foreach(test
    sock_test_server
    sock_test_client
  )
    add_vpp_executable(${test}
      SOURCES "vcl/${test}.c"
      LINK_LIBRARIES vppcom pthread
      NO_INSTALL
    )
  endforeach()

  foreach(test
    vcl_test_server
    vcl_test_client
  )
    add_vpp_executable(${test}
      SOURCES
      "vcl/${test}.c"
      vcl/vcl_test_protos.c
      LINK_LIBRARIES vppcom pthread
      NO_INSTALL
    )
  endforeach()
endif(VPP_BUILD_VCL_TESTS)
vl_socket_client_read (1)) goto sock_err; if (mm->first_msg_id_reply_ready == 1) { rv = mm->first_msg_id_reply; goto result; } sock_err: /* Restore old handler */ am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = old_handler; return -1; } else { mp = vl_msg_api_alloc (sizeof (*mp)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = ntohs (VL_API_GET_FIRST_MSG_ID); mp->client_index = am->my_client_index; strncpy ((char *) mp->name, plugin_name, sizeof (mp->name) - 1); vl_msg_api_send_shmem (am->shmem_hdr->vl_input_queue, (u8 *) & mp); /* Synchronously wait for the answer */ timeout = clib_time_now (&clib_time) + 1.0; while (clib_time_now (&clib_time) < timeout) { if (mm->first_msg_id_reply_ready == 1) { rv = mm->first_msg_id_reply; goto result; } } /* Restore old handler */ am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = old_handler; return rv; } result: /* Restore the old handler */ am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = old_handler; if (rv == (u16) ~ 0) clib_warning ("plugin '%s' not registered", plugin_name); return rv; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */