/* * Copyright (c) 2018-2019 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. */ vppcom_main_t _vppcom_main = { .debug = VPPCOM_DEBUG_INIT, .is_init = 0, .app_index = ~0, }; vppcom_main_t *vcm = &_vppcom_main; void vppcom_cfg_init (vppcom_cfg_t * vcl_cfg) { ASSERT (vcl_cfg); vcl_cfg->heapsize = (256ULL << 20); vcl_cfg->max_workers = 16; 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->app_timeout = 10 * 60.0; vcl_cfg->session_timeout = 10 * 60.0; vcl_cfg->event_log_path = "/dev/shm"; } #define VCFG_DBG(_lvl, _fmt, _args...) \ { \ if (vcm->debug > _lvl) \ fprintf (stderr, _fmt "\n", ##_args); \ } 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) { VCFG_DBG (0, "VCL<%d>: using default heapsize %lu (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) vcl_cfg->heapsize); goto defaulted; } argv = calloc (1, sizeof (char *)); if (argv == NULL) { VCFG_DBG (0, "VCL<%d>: calloc failed, using default heapsize %lu" " (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) 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) { VCFG_DBG (0, "VCL<%d>: realloc failed, using default " "heapsize %lu (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) vcl_cfg->heapsize); goto defaulted; } argv = tmp; arg = strndup (p, 1024); if (arg == NULL) { VCFG_DBG (0, "VCL<%d>: strndup failed, using default " "heapsize %lu (0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) 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) { VCFG_DBG (0, "VCL<%d>: realloc failed, using default heapsize %lu " "(0x%lx)", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) 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) { VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default " "heapsize %lu (0x%lx)", getpid (), argv[i], argv[i + 1], (unsigned long) vcl_cfg->heapsize, (unsigned long) 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 { VCFG_DBG (0, "VCL<%d>: parse error '%s %s', using default " "heapsize %lu (0x%lx)", getpid (), argv[i], argv[i + 1], (unsigned long) vcl_cfg->heapsize, (unsigned long) vcl_cfg->heapsize); goto defaulted; } } free (argv[i]); } 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) { VCFG_DBG (0, "VCL<%d>: ERROR: mmap(0, %lu == 0x%lx, " "PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, " "-1, 0) failed!", getpid (), (unsigned long) vcl_cfg->heapsize, (unsigned long) vcl_cfg->heapsize); ASSERT (vcl_mem != MAP_FAILED); return; } heap = clib_mem_init_thread_safe (vcl_mem, vcl_cfg->heapsize); if (!heap) { fprintf (stderr, "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; VCFG_DBG (0, "VCL<%d>: allocated VCL heap = %p, size %lu (0x%lx)", getpid (), heap, (unsigned long) vcl_cfg->heapsize, (unsigned long) 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; struct stat s; u32 uid, gid; fd = open (conf_fname, O_RDONLY); if (fd < 0) { VCFG_DBG (0, "VCL<%d>: using default configuration.", getpid ()); goto file_done; } if (fstat (fd, &s) < 0) { VCFG_DBG (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))) { VCFG_DBG (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) { /* skip empty newlines as they confuse unformat_line_input */ unformat_skip_white_space (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; unformat_free (line_input); continue; } if (vc_cfg_input) { if (unformat (line_input, "heapsize %U", unformat_memory_size, &vcl_cfg->heapsize)) { VCFG_DBG (0, "VCL<%d>: configured heapsize %lu", getpid (), (unsigned long) vcl_cfg->heapsize); } else if (unformat (line_input, "max-workers %u", &vcl_cfg->max_workers)) { VCFG_DBG (0, "VCL<%d>: configured max-workers %u", getpid (), vcl_cfg->max_workers); } else if (unformat (line_input, "api-socket-name %s", &vcl_cfg->vpp_bapi_socket_name)) { vec_terminate_c_string (vcl_cfg->vpp_bapi_socket_name); VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)", getpid (), vcl_cfg->vpp_bapi_socket_name); } else if (unformat (line_input, "app-socket-api %s", &vcl_cfg->vpp_app_socket_api)) { vec_terminate_c_string (vcl_cfg->vpp_app_socket_api); VCFG_DBG (0, "VCL<%d>: configured app-socket-api (%s)", getpid (), vcl_cfg->vpp_app_socket_api); } else if (unformat (line_input, "uid %d", &uid)) { vl_set_memory_uid (uid); VCFG_DBG (0, "VCL<%d>: configured uid %d", getpid (), uid); } else if (unformat (line_input, "gid %d", &gid)) { vl_set_memory_gid (gid); VCFG_DBG (0, "VCL<%d>: configured gid %d", getpid (), gid); } else if (unformat (line_input, "segment-size 0x%lx", &vcl_cfg->segment_size)) { VCFG_DBG (0, "VCL<%d>: configured segment_size 0x%lx (%lu)", getpid (), vcl_cfg->segment_size, vcl_cfg->segment_size); } else if (unformat (line_input, "segment-size %lu", &vcl_cfg->segment_size)) { VCFG_DBG (0, "VCL<%d>: configured segment_size %lu (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)) { VCFG_DBG (0, "VCL<%d>: configured add_segment_size 0x%lx (%lu)", getpid (), vcl_cfg->add_segment_size, vcl_cfg->add_segment_size); } else if (unformat (line_input, "add-segment-size %lu", &vcl_cfg->add_segment_size)) { VCFG_DBG (0, "VCL<%d>: configured add_segment_size %lu (0x%lx)", getpid (), vcl_cfg->add_segment_size, vcl_cfg->add_segment_size); } else if (unformat (line_input, "preallocated-fifo-pairs %u", &vcl_cfg->preallocated_fifo_pairs)) { VCFG_DBG (0, "VCL<%d>: configured preallocated_fifo_pairs %u " "(0x%x)", getpid (), vcl_cfg->preallocated_fifo_pairs, vcl_cfg->preallocated_fifo_pairs); } else if (unformat (line_input, "rx-fifo-size 0x%x", &vcl_cfg->rx_fifo_size)) { VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size 0x%x (%u)", getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); } else if (unformat (line_input, "rx-fifo-size %u", &vcl_cfg->rx_fifo_size)) { VCFG_DBG (0, "VCL<%d>: configured rx_fifo_size %u (0x%x)", getpid (), vcl_cfg->rx_fifo_size, vcl_cfg->rx_fifo_size); } else if (unformat (line_input, "tx-fifo-size 0x%x", &vcl_cfg->tx_fifo_size)) { VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size 0x%x (%u)", getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); } else if (unformat (line_input, "tx-fifo-size %u", &vcl_cfg->tx_fifo_size)) { VCFG_DBG (0, "VCL<%d>: configured tx_fifo_size %u (0x%x)", getpid (), vcl_cfg->tx_fifo_size, vcl_cfg->tx_fifo_size); } else if (unformat (line_input, "event-queue-size 0x%x", &vcl_cfg->event_queue_size)) { VCFG_DBG (0, "VCL<%d>: configured event_queue_size 0x%x (%u)", getpid (), vcl_cfg->event_queue_size, vcl_cfg->event_queue_size); } else if (unformat (line_input, "event-queue-size %u", &vcl_cfg->event_queue_size)) { VCFG_DBG (0, "VCL<%d>: configured event_queue_size %u (0x%x)", getpid (), vcl_cfg->event_queue_size, vcl_cfg->event_queue_size); } else if (unformat (line_input, "app-timeout %f", &vcl_cfg->app_timeout)) { VCFG_DBG (0, "VCL<%d>: configured app_timeout %f", getpid (), vcl_cfg->app_timeout); } else if (unformat (line_input, "session-timeout %f", &vcl_cfg->session_timeout)) { VCFG_DBG (0, "VCL<%d>: configured session_timeout %f", getpid (), vcl_cfg->session_timeout); } else if (unformat (line_input, "app-proxy-transport-tcp")) { vcl_cfg->app_proxy_transport_tcp = 1; VCFG_DBG (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; VCFG_DBG (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; VCFG_DBG (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; VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%d)", getpid (), vcl_cfg->app_scope_global); } else if (unformat (line_input, "huge_page")) { vcl_cfg->huge_page = 1; VCFG_DBG (0, "VCL<%d>: configured huge_page (%d)", getpid (), vcl_cfg->huge_page); } else if (unformat (line_input, "namespace-secret %lu", &vcl_cfg->namespace_secret)) { VCFG_DBG (0, "VCL<%d>: configured namespace_secret %llu " "(0x%llx)", getpid (), (unsigned long long) vcl_cfg->namespace_secret, (unsigned long long) vcl_cfg->namespace_secret); } else if (unformat (line_input, "namespace-id %v", &vcl_cfg->namespace_id)) { u32 max_nsid_vec_len = vcl_bapi_max_nsid_len (); u32 nsid_vec_len = vec_len (vcl_cfg->namespace_id); if (nsid_vec_len > max_nsid_vec_len) { vec_set_len (vcl_cfg->namespace_id, max_nsid_vec_len); VCFG_DBG (0, "VCL<%d>: configured namespace_id is too long," " truncated to %d characters!", getpid (), max_nsid_vec_len); } VCFG_DBG (0, "VCL<%d>: configured namespace_id %s", getpid (), (char *) vcl_cfg->namespace_id); } else if (unformat (line_input, "use-mq-eventfd")) { vcl_cfg->use_mq_eventfd = 1; VCFG_DBG (0, "VCL<%d>: configured with mq with eventfd", getpid ()); } else if (unformat (line_input, "tls-engine %u", &vcl_cfg->tls_engine)) { VCFG_DBG (0, "VCL<%d>: configured tls-engine %u (0x%x)", getpid (), vcl_cfg->tls_engine, vcl_cfg->tls_engine); } else if (unformat (line_input, "multi-thread-workers")) { vcl_cfg->mt_wrk_supported = 1; VCFG_DBG (0, "VCL<%d>: configured with multithread workers", getpid ()); } else if (unformat (line_input, "app_original_dst")) { vcl_cfg->app_original_dst = 1; VCFG_DBG (0, "VCL<%d>: support original destination", getpid ()); } else if (unformat (line_input, "}")) { vc_cfg_input = 0; VCFG_DBG (0, "VCL<%d>: completed parsing vppcom config!", getpid ()); unformat_free (line_input); 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]); } } unformat_free (line_input); } } 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) { VCFG_DBG (0, "VCL<%d>: WARNING: Invalid debug level specified " "in the environment variable " VPPCOM_ENV_DEBUG " (%s)!\n", getpid (), env_var_str); } else { vcm->debug = tmp; VCFG_DBG (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); /* Regrab cfg after heap initialization */ vcl_cfg = &vcm->cfg; 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); VCFG_DBG (0, "VCL<%d>: configured namespace_id (%s) from " VPPCOM_ENV_APP_NAMESPACE_ID "!", getpid (), env_var_str); } env_var_str = getenv (VPPCOM_ENV_APP_NAMESPACE_SECRET); if (env_var_str) { u64 tmp; if (sscanf (env_var_str, "%llu", (unsigned long long *) &tmp) != 1) { VCFG_DBG (0, "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; VCFG_DBG (0, "VCL<%d>: configured namespace secret (%llu) from " VPPCOM_ENV_APP_NAMESPACE_SECRET "!", getpid (), (unsigned long long) vcm->cfg.namespace_secret); } } if (getenv (VPPCOM_ENV_APP_PROXY_TRANSPORT_TCP)) { vcm->cfg.app_proxy_transport_tcp = 1; VCFG_DBG (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; VCFG_DBG (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; VCFG_DBG (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; VCFG_DBG (0, "VCL<%d>: configured app_scope_global (%u) from " VPPCOM_ENV_APP_SCOPE_GLOBAL "!", getpid (), vcm->cfg.app_scope_global); } env_var_str = getenv (VPPCOM_ENV_VPP_API_SOCKET); if (env_var_str) { vcm->cfg.vpp_bapi_socket_name = format (0, "%s%c", env_var_str, 0); VCFG_DBG (0, "VCL<%d>: configured api-socket-name (%s)", getpid (), vcl_cfg->vpp_bapi_socket_name); } env_var_str = getenv (VPPCOM_ENV_VPP_SAPI_SOCKET); if (env_var_str) { vcm->cfg.vpp_app_socket_api = format (0, "%s%c", env_var_str, 0); VCFG_DBG (0, "VCL<%d>: configured app-socket-api (%s)", getpid (), vcl_cfg->vpp_app_socket_api); } env_var_str = getenv (VPPCOM_ENV_APP_USE_MQ_EVENTFD); if (env_var_str) { vcm->cfg.use_mq_eventfd = 1; VCFG_DBG (0, "VCL<%d>: configured " VPPCOM_ENV_APP_USE_MQ_EVENTFD, getpid ()); } } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */