/* * Copyright (c) 2021 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. */ /** * \file api.c * \brief Implementation of hICN control library API */ #include // assert #include // fcntl #include #include // snprintf #include // memmove, strcasecmp #include // socket #include // getpid #include // close, fcntl #include // getpid #include "api_private.h" #ifdef __linux__ #include #define gettid() syscall(SYS_gettid) #endif /* __linux__ */ #include #include #include "hicn_light_common.h" #include #pragma GCC diagnostic ignored "-Warray-bounds" #if 0 #ifdef __APPLE__ #define RANDBYTE() (u8)(arc4random() & 0xFF) #else #define RANDBYTE() (u8)(random() & 0xFF) #endif #endif #define RANDBYTE() (u8)(rand() & 0xFF) /** * \brief Defines the default size for the allocated data arrays holding the * results of API calls. * * This size should not be too small to avoid wasting memoyy, but also not too * big to avoid unnecessary realloc's. Later on this size is doubled at each * reallocation. */ #define DEFAULT_SIZE_LOG 3 #define connection_state_to_face_state(x) ((face_state_t)(x)) #define face_state_to_connection_state(x) ((hc_connection_state_t)(x)) /****************************************************************************** * Message helper types and aliases ******************************************************************************/ #define foreach_hc_command \ _(connection_add) \ _(connection_remove) \ _(connection_list) \ _(listener_add) \ _(listener_remove) \ _(listener_list) \ _(route_add) \ _(route_remove) \ _(route_list) \ _(cache_set_store) \ _(cache_set_serve) \ _(cache_clear) \ _(cache_list) \ _(strategy_set) \ _(strategy_add_local_prefix) \ _(wldr_set) \ _(punting_add) \ _(mapme_activator) \ _(mapme_timing) \ _(subscription_add) \ _(subscription_remove) \ _(stats_get) \ _(stats_list) const char *command_type_str[] = { #define _(l, u) [COMMAND_TYPE_##u] = STRINGIZE(u), foreach_command_type #undef _ }; typedef cmd_header_t hc_msg_header_t; typedef union { #define _(x) cmd_##x##_t x; foreach_hc_command #undef _ } hc_msg_payload_t; typedef struct hc_msg_s { hc_msg_header_t hdr; hc_msg_payload_t payload; } hc_msg_t; /****************************************************************************** * Control socket ******************************************************************************/ #define AVAILABLE(s) ((s)->woff - (s)->roff) #define DEFAULT_SOCK_RECV_TIMEOUT_MS 100 /** * \brief Parse a connection URL into a sockaddr * \param [in] url - URL * \param [out] sa - Resulting struct sockaddr, expected zero'ed. * \return 0 if parsing succeeded, a negative error value otherwise. */ static int _hcng_sock_light_parse_url(const char *url, struct sockaddr *sa) { /* FIXME URL parsing is currently not implemented */ assert(!url); #ifdef __linux__ srand(time(NULL) ^ getpid() ^ gettid()); #else srand((unsigned int)(time(NULL) ^ getpid())); #endif /* __linux__ */ /* * A temporary solution is to inspect the sa_family fields of the passed in * sockaddr, which defaults to AF_UNSPEC (0) and thus creates an IPv4/TCP * connection to localhost. */ switch (sa->sa_family) { case AF_UNSPEC: case AF_INET: { struct sockaddr_in *sai = (struct sockaddr_in *)sa; sai->sin_family = AF_INET; sai->sin_port = htons(PORT); sai->sin_addr.s_addr = htonl(INADDR_LOOPBACK); break; } case AF_INET6: { struct sockaddr_in6 *sai6 = (struct sockaddr_in6 *)sa; sai6->sin6_family = AF_INET6; sai6->sin6_port = htons(PORT); sai6->sin6_addr = loopback_addr; break; } default: return -1; } return 0; } static int _hcng_sock_light_reset(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); s->roff = s->woff = 0; s->remaining = 0; return 0; } void _hcng_sock_light_free(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); unsigned k_seq; hc_sock_request_t *v_request; kh_foreach(s->map, k_seq, v_request, { hc_sock_light_request_free(v_request); }); kh_destroy_sock_map(s->map); if (s->url) free(s->url); close(s->fd); free(s); } static void _hcng_sock_increment_woff(hc_sock_t *socket, size_t bytes) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); s->woff += bytes; } static int _hcng_sock_light_get_next_seq(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); return s->seq++; } static int _hcng_sock_light_set_nonblocking(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); return (fcntl(s->fd, F_SETFL, fcntl(s->fd, F_GETFL) | O_NONBLOCK) < 0); } static int _hcng_sock_light_get_fd(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); return s->fd; } static int _hcng_sock_light_connect(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); struct sockaddr_storage ss; memset(&ss, 0, sizeof(struct sockaddr_storage)); if (_hcng_sock_light_parse_url(s->url, (struct sockaddr *)&ss) < 0) goto ERR_PARSE; size_t size = ss.ss_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6); if (connect(s->fd, (struct sockaddr *)&ss, (socklen_t)size) < 0) { perror("connect error"); goto ERR_CONNECT; } return 0; ERR_CONNECT: ERR_PARSE: return -1; } static int _hcng_sock_light_send(hc_sock_t *socket, hc_msg_t *msg, size_t msglen, uint32_t seq) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); int rc; msg->hdr.seq_num = seq; rc = (int)send(s->fd, msg, msglen, 0); if (rc < 0) { perror("hc_sock_light_send"); return -1; } return 0; } static int _hcng_sock_light_get_available(hc_sock_t *socket, u8 **buffer, size_t *size) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); *buffer = s->buf + s->woff; *size = RECV_BUFLEN - s->woff; return 0; } static int _hcng_sock_light_recv(hc_sock_t *socket) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); int rc; /* * This condition should be ensured to guarantee correct processing of * messages. With TCP, we need at least a header as we will receive part of * the stream. With UDP, we need the be able to receive the full datagram, * otherwise the rest will be lost. * * Let's be sure to always be able to receive at least 1 JUMBO_MTU, which * should be fine for al situations. */ assert(RECV_BUFLEN - s->woff > JUMBO_MTU); rc = (int)recv(s->fd, s->buf + s->woff, RECV_BUFLEN - s->woff, 0); if (rc == 0) { /* Connection has been closed */ return 0; } if (rc < 0) { /* * Let's not return 0 which currently means the socket has been closed */ if (errno == EWOULDBLOCK) return -1; if (errno == EINTR) { WARN("recv has been stopped by signal"); return -1; } perror("hc_sock_light_recv"); return -1; } s->woff += rc; return rc; } static void _hcng_sock_light_mark_complete(hc_sock_light_t *s, hc_data_t **pdata) { hc_data_t *data = s->cur_request->data; khiter_t k = kh_get_sock_map(s->map, s->cur_request->seq); if (k == kh_end(s->map)) { ERROR("[hc_sock_light_mark_complete] Error removing request from map"); } else { kh_del_sock_map(s->map, k); } hc_data_set_complete(data); if (pdata) *pdata = data; /* Free current request */ hc_sock_light_request_free(s->cur_request); s->cur_request = NULL; } static int _hcng_sock_light_process_notification(hc_sock_light_t *s, hc_data_t **pdata) { /* For now, notifications are not associated to requests */ assert(!s->cur_request); /* * Assumption: the whole notification data is returned in a single read and we * immediately parse it. * * XXX This is only valid for UDP sockets. */ size_t notification_size = AVAILABLE(s); *pdata = hc_data_create(0, /* in_element_size, 0 = no parsing */ notification_size, /* out_element_size */ NULL); /* complete_cb */ /* Copy the packet payload as the single entry in hc_data_t */ hc_data_push_many(*pdata, s->buf + s->roff, 1); return (int)notification_size; } /* * Notifications have no sequence number and are not linked to any request */ static hc_sock_request_t *_hcng_sock_light_get_request(hc_sock_light_t *s, int seq) { hc_sock_request_t *request; /* Retrieve request from sock map */ khiter_t k = kh_get_sock_map(s->map, seq); if (k == kh_end(s->map)) { ERROR( "[_hcng_sock_light_get_request] Error searching for matching request"); return NULL; } request = kh_val(s->map, k); if (!request) { ERROR("[_hcng_sock_light_get_request] No request matching sequence number"); return NULL; } return request; } /* * Return codes: * 0 success, or not enough data yet to do something * > 0 : notification type * -99 invalid buffer data -> flush */ static int _hcng_sock_light_process_header(hc_sock_light_t *s, hc_data_t **pdata) { int rc; /* Check we have at least a header's worth of data, and consume it */ if (AVAILABLE(s) < sizeof(hc_msg_header_t)) return 0; hc_msg_t *msg = (hc_msg_t *)(s->buf + s->roff); // INFO("Processing header header %s", command_type_str(msg->hdr.command_id)); s->roff += sizeof(hc_msg_header_t); if (msg->hdr.message_type != NOTIFICATION_LIGHT) { s->cur_request = _hcng_sock_light_get_request(s, msg->hdr.seq_num); if (!s->cur_request) return -99; } /* How many elements are we expecting in the reply ? */ s->remaining = msg->hdr.length; hc_data_t *request_data; switch (msg->hdr.message_type) { case ACK_LIGHT: assert(s->remaining == 1); // sic assert(!pdata); _hcng_sock_light_mark_complete(s, pdata); break; case NACK_LIGHT: assert(!pdata); assert(s->remaining == 1); // sic request_data = s->cur_request->data; _hcng_sock_light_mark_complete(s, pdata); hc_data_set_error(request_data); break; case RESPONSE_LIGHT: assert(pdata); if (s->remaining == 0) { /* Empty response (i.e. containing 0 elements) */ _hcng_sock_light_mark_complete(s, pdata); return 0; } /* Make room in hc_data_t... to avoid multiple calls */ rc = hc_data_ensure_available(s->cur_request->data, s->remaining); if (rc < 0) { ERROR("[hc_sock_light_process] Error in hc_data_ensure_available"); return -99; } break; case NOTIFICATION_LIGHT: { assert(pdata); assert(s->remaining == 0); /* This returns the notification size */ size_t notification_size = _hcng_sock_light_process_notification(s, pdata); s->roff += notification_size; return msg->hdr.command_id; } default: ERROR("[hc_sock_light_process] Invalid response received"); return -99; } return 0; } static int _hcng_sock_light_process_payload(hc_sock_light_t *s, hc_data_t **pdata) { int err = 0; int rc; hc_data_t *data = s->cur_request->data; /* We only process full elements (size is stored in data) */ size_t num_chunks = AVAILABLE(s) / data->in_element_size; /* Check whether we have enough data to process */ if (num_chunks == 0) return 0; /* Safeguard: assert(num_chunks < s->remaining); */ if (num_chunks > s->remaining) { WARN( "[_hcng_sock_light_process_payload] Unexpected num_chunks > " "s->remaining"); num_chunks = s->remaining; } if (!s->cur_request->parse) { /* If we don't need to parse results, then we can directly push * all of them into the result data structure */ hc_data_push_many(data, s->buf + s->roff, num_chunks); } else { /* Iterate on chunks of data */ for (int i = 0; i < num_chunks; i++) { /* Get storage offset in hc_data_t */ u8 *dst = hc_data_get_next(data); if (!dst) { ERROR("[hc_sock_light_process] Error in hc_data_get_next"); err = -2; break; } /* Parse element #i */ rc = s->cur_request->parse(s->buf + s->roff + i * data->in_element_size, dst); if (rc < 0) { ERROR("[hc_sock_light_process] Error in parse"); err = -1; /* In this case we let the loop complete to collect other results */ } data->size++; } } s->roff += num_chunks * data->in_element_size; /* * If we are not expecting any more data, mark the reply as complete */ s->remaining -= num_chunks; if (s->remaining == 0) _hcng_sock_light_mark_complete(s, pdata); return err; } /* * Process messages as they are received in the ring buffer. There can be * interleaved queries and replies (they are identified by sequence number), * and the assumption is that a reply can arrive over mutiple packets (in * other terms, it is possible that not all data from the reply is available * in the buffer at a given time). However, we assume that a full query is * received at once. */ static int _hcng_sock_light_process(hc_sock_t *socket, hc_data_t **data) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); int rc = 0; /* * We loop consuming messages until there is no more data in the buffer, * or that we can find an entire message. Messages are received * sequentially, and we keep track of incomplete requests in s->cur_request. */ while (AVAILABLE(s) > 0) { if (!s->cur_request) { rc = _hcng_sock_light_process_header(s, data); } else { rc = _hcng_sock_light_process_payload(s, data); } if (rc < 0) break; } if ((rc == -99) || (s->roff == s->woff)) { /* Flush buffer */ s->woff = 0; } else { /* Clean up read data from buffer */ memmove(s->buf, s->buf + s->roff, AVAILABLE(s)); s->woff -= s->roff; } s->roff = 0; return rc; } static int _hcng_sock_light_callback(hc_sock_t *socket, hc_data_t **pdata) { hc_data_t *data = NULL; int rc = 0; for (;;) { int n = _hcng_sock_light_recv(socket); if (n == 0) goto ERR_EOF; if (n < 0) { switch (errno) { case ECONNRESET: case ENODEV: /* Forwarder restarted */ WARN("Forwarder likely restarted: not (yet) implemented"); goto ERR; case EWOULDBLOCK: // DEBUG("Would block... stop reading from socket"); goto END; case EINTR: WARN("callback has been stopped by signal"); goto ERR; default: perror("hc_sock_light_callback"); goto ERR; } } rc = _hcng_sock_light_process(socket, &data); if (rc < 0) goto ERR; if (rc > 0) // i.e. rc = notification type goto END; } END: if (pdata) *pdata = data; else hc_data_free(data); return rc; ERR: hc_data_free(data); ERR_EOF: return -1; } /****************************************************************************** * Command-specific structures and functions ******************************************************************************/ typedef int (*HC_PARSE)(const u8 *, u8 *); typedef struct { hc_action_t cmd; command_type_t cmd_id; size_t size_in; size_t size_out; HC_PARSE parse; } hc_command_params_t; typedef struct hc_result_s { hc_msg_t msg; hc_command_params_t params; bool async; bool success; } hc_result_t; int _hcng_sock_prepare_send(hc_sock_t *socket, hc_result_t *result, data_callback_t complete_cb, void *complete_cb_data) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); // Prepare data hc_data_t *data = hc_data_create(result->params.size_in, result->params.size_out, NULL); if (!data) { ERROR("[_hcng_sock_prepare_send] Could not create data storage"); goto ERR_DATA; } hc_data_set_callback(data, complete_cb, complete_cb_data); // Update the sequence number int seq = _hcng_sock_light_get_next_seq(socket); result->msg.hdr.seq_num = seq; // Like in _hcng_sock_light_send // Create state used to process the request hc_sock_request_t *request = NULL; request = hc_sock_request_create(seq, data, result->params.parse); if (!request) { ERROR("[_hcng_sock_prepare_send] Could not create request state"); goto ERR_REQUEST; } int rc; khiter_t k = kh_put_sock_map(s->map, seq, &rc); if (rc != KH_ADDED && rc != KH_RESET) { ERROR("[_hcng_sock_prepare_send] Error adding request state to map"); goto ERR_MAP; } kh_value(s->map, k) = request; return sizeof(result->msg); ERR_MAP: hc_sock_light_request_free(request); ERR_REQUEST: hc_data_free(data); ERR_DATA: return -99; } int _hcng_sock_set_recv_timeout_ms(hc_sock_t *socket, long timeout_ms) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); struct timeval tv; tv.tv_sec = 0; tv.tv_usec = (int)(timeout_ms * 1000); // Convert ms into us if (setsockopt(s->fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) { perror("setsockopt"); return -1; } return 0; } static int _hcng_execute_command(hc_sock_t *socket, hc_msg_t *msg, size_t msg_len, hc_command_params_t *params, hc_data_t **pdata, bool async) { hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); int ret; if (async) assert(!pdata); /* Sanity check */ switch (params->cmd) { case ACTION_CREATE: assert(params->size_in != 0); /* payload repeated */ assert(params->size_out == 0); assert(params->parse == NULL); break; case ACTION_DELETE: assert(params->size_in != 0); /* payload repeated */ assert(params->size_out == 0); assert(params->parse == NULL); break; case ACTION_GET: case ACTION_LIST: assert(params->size_in != 0); assert(params->size_out != 0); // TODO(eloparco): Parsing should not be necessary after // (pending) refatoring // assert(params->parse != NULL); break; case ACTION_SET: case ACTION_SERVE: case ACTION_STORE: case ACTION_UPDATE: assert(params->size_in != 0); assert(params->size_out == 0); assert(params->parse == NULL); break; case ACTION_CLEAR: assert(params->size_in == 0); assert(params->size_out == 0); assert(params->parse == NULL); break; default: return -1; } // hc_sock_light_reset(s); /* XXX data will at least store the result (complete) */ hc_data_t *data = hc_data_create(params->size_in, params->size_out, NULL); if (!data) { ERROR("[_hcng_execute_command] Could not create data storage"); goto ERR_DATA; } int seq = _hcng_sock_light_get_next_seq(socket); /* Create state used to process the request */ hc_sock_request_t *request = NULL; request = hc_sock_request_create(seq, data, params->parse); if (!request) { ERROR("[_hcng_execute_command] Could not create request state"); goto ERR_REQUEST; } /* Add state to map */ int rc; khiter_t k = kh_put_sock_map(s->map, seq, &rc); if (rc != KH_ADDED && rc != KH_RESET) { ERROR("[_hcng_execute_command] Error adding request state to map"); goto ERR_MAP; } kh_value(s->map, k) = request; if (_hcng_sock_light_send(socket, msg, msg_len, seq) < 0) { ERROR("[_hcng_execute_command] Error sending message"); goto ERR_PROCESS; } if (async) return 0; /* * Dangerous zone, we might be doing blocking operations on a non-blocking * UDP socket */ int retries = 0; while (!data->complete) { /* * As the socket is non blocking it might happen that we need to read * several times before success... */ int n = _hcng_sock_light_recv(socket); if (n == 0) goto ERR_EOF; if (n < 0) { if ((errno == EWOULDBLOCK) && (retries < 10)) { /* Max 500ms */ DEBUG("read = EWOULDBLOCK... sleeping for 50ms (max 500ms)"); usleep(50000); /* 50ms */ retries++; continue; } break; } int rc = _hcng_sock_light_process(socket, pdata); switch (rc) { case 0: case -1: break; case -99: ERROR("[_hcng_execute_command] Error processing socket results"); goto ERR; default: ERROR("[_hcng_execute_command] Unexpected return value"); goto ERR; } } ERR_EOF: ret = data->ret; if (!data->complete) return -1; if (!pdata) hc_data_free(data); return ret; ERR_PROCESS: ERR_MAP: hc_sock_light_request_free(request); ERR: ERR_REQUEST: hc_data_free(data); ERR_DATA: return -99; } /*----------------------------------------------------------------------------* * Listeners *----------------------------------------------------------------------------*/ /* LISTENER CREATE */ static hc_result_t *_listener_create_serialize(hc_sock_t *s, hc_listener_t *listener, bool async) { hc_result_t *res = malloc(sizeof(*res)); char listener_s[MAXSZ_HC_LISTENER]; int rc = hc_listener_snprintf(listener_s, MAXSZ_HC_LISTENER, listener); if (rc >= MAXSZ_HC_LISTENER) WARN("[_hcng_listener_create] Unexpected truncation of listener string"); DEBUG("[_hcng_listener_create] listener=%s async=%s", listener_s, BOOLSTR(async)); if (hc_listener_validate(listener) < 0) { res->success = false; return res; } msg_listener_add_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_LISTENER_ADD, .length = 1, .seq_num = 0, }, .payload = { .address = listener->local_addr, .port = htons(listener->local_port), .family = listener->family, .type = listener->type, }}; rc = snprintf(msg.payload.symbolic, SYMBOLIC_NAME_LEN, "%s", listener->name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_listener_create] Unexpected truncation of symbolic name " "string"); rc = snprintf(msg.payload.interface_name, INTERFACE_LEN, "%s", listener->interface_name); if (rc >= INTERFACE_LEN) WARN( "[_hc_listener_create] Unexpected truncation of interface name " "string"); hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_LISTENER_ADD, .size_in = sizeof(cmd_listener_add_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.listener_add = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static hc_result_t *_hcng_listener_create_conf(hc_sock_t *s, hc_listener_t *listener) { return _listener_create_serialize(s, listener, false); } static int _hcng_listener_create_internal(hc_sock_t *socket, hc_listener_t *listener, bool async) { hc_result_t *result = _listener_create_serialize(socket, listener, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } free(result); DEBUG("[_hcng_listener_create] done or error"); return ret; } static int _hcng_listener_create(hc_sock_t *s, hc_listener_t *listener) { DEBUG("[_hcng_listener_create]"); return _hcng_listener_create_internal(s, listener, false); } static int _hcng_listener_create_async(hc_sock_t *s, hc_listener_t *listener) { DEBUG("[_hcng_listener_create_async]"); return _hcng_listener_create_internal(s, listener, true); } /* LISTENER PARSE */ static int hc_listener_parse(void *in, hc_listener_t *listener) { int rc; cmd_listener_list_item_t *item = (cmd_listener_list_item_t *)in; if (!IS_VALID_ID(item->id)) { ERROR("[hc_listener_parse] Invalid id received"); return -1; } *listener = (hc_listener_t){ .id = item->id, .type = item->type, .family = item->family, .local_addr = UNION_CAST(item->address, ip_address_t), .local_port = ntohs(item->port), }; rc = snprintf(listener->name, SYMBOLIC_NAME_LEN, "%s", item->name); if (rc >= SYMBOLIC_NAME_LEN) WARN("[hc_listener_parse] Unexpected truncation of symbolic name string"); rc = snprintf(listener->interface_name, INTERFACE_LEN, "%s", item->interface_name); if (rc >= INTERFACE_LEN) WARN("[hc_listener_parse] Unexpected truncation of interface name string"); if (hc_listener_validate(listener) < 0) return -1; return 0; } /* LISTENER LIST */ static hc_result_t *_hcng_listener_list_serialize(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *res = malloc(sizeof(*res)); DEBUG("[hc_listener_list] async=%s", BOOLSTR(async)); msg_listener_list_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_LISTENER_LIST, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_LISTENER_LIST, .size_in = sizeof(cmd_listener_list_item_t), .size_out = sizeof(hc_listener_t), .parse = (HC_PARSE)hc_listener_parse, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.listener_list = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static hc_result_t *_hcng_listener_list_conf(hc_sock_t *s, hc_data_t **pdata) { return _hcng_listener_list_serialize(s, pdata, false); } static int _hcng_listener_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *result = _hcng_listener_list_serialize(socket, pdata, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, pdata, result->async); } hc_result_free(result); DEBUG("[_hcng_listener_list] done or error"); return ret; } static int _hcng_listener_list(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[_hcng_listener_list]"); return _hcng_listener_list_internal(s, pdata, false); } static int _hcng_listener_list_async(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[_hcng_listener_list_as-nc]"); return _hcng_listener_list_internal(s, pdata, true); } /* LISTENER GET */ static int _hcng_listener_get(hc_sock_t *socket, hc_listener_t *listener, hc_listener_t **listener_found) { hc_data_t *listeners; hc_listener_t *found; char listener_s[MAXSZ_HC_LISTENER]; int rc = hc_listener_snprintf(listener_s, MAXSZ_HC_LISTENER, listener); if (rc >= MAXSZ_HC_LISTENER) WARN("[hc_listener_get] Unexpected truncation of listener string"); DEBUG("[hc_listener_get] listener=%s", listener_s); if (_hcng_listener_list(socket, &listeners) < 0) return -1; /* Test */ if (hc_listener_find(listeners, listener, &found) < 0) { hc_data_free(listeners); return -1; } if (found) { *listener_found = malloc(sizeof(hc_listener_t)); if (!*listener_found) return -1; **listener_found = *found; } else { *listener_found = NULL; } hc_data_free(listeners); return 0; } /* LISTENER DELETE */ static int _hcng_listener_delete_internal(hc_sock_t *socket, hc_listener_t *listener, bool async) { char listener_s[MAXSZ_HC_LISTENER]; int rc = hc_listener_snprintf(listener_s, MAXSZ_HC_LISTENER, listener); if (rc >= MAXSZ_HC_LISTENER) WARN("[_hcng_listener_delete] Unexpected truncation of listener string"); DEBUG("[_hcng_listener_delete] listener=%s async=%s", listener_s, BOOLSTR(async)); msg_listener_remove_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_LISTENER_REMOVE, .length = 1, .seq_num = 0, }}; if (listener->id) { rc = snprintf(msg.payload.symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%d", listener->id); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_listener_delete] Unexpected truncation of symbolic name " "string"); } else if (*listener->name) { rc = snprintf(msg.payload.symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%s", listener->name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_listener_delete] Unexpected truncation of symbolic name " "string"); } else { hc_listener_t *listener_found; if (_hcng_listener_get(socket, listener, &listener_found) < 0) return -1; if (!listener_found) return -1; rc = snprintf(msg.payload.symbolicOrListenerid, SYMBOLIC_NAME_LEN, "%d", listener_found->id); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_listener_delete] Unexpected truncation of symbolic name " "string"); free(listener_found); } hc_command_params_t params = { .cmd = ACTION_DELETE, .cmd_id = COMMAND_TYPE_LISTENER_REMOVE, .size_in = sizeof(cmd_listener_remove_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_listener_delete(hc_sock_t *s, hc_listener_t *listener) { return _hcng_listener_delete_internal(s, listener, false); } static int _hcng_listener_delete_async(hc_sock_t *s, hc_listener_t *listener) { return _hcng_listener_delete_internal(s, listener, true); } /*----------------------------------------------------------------------------* * CONNECTION *----------------------------------------------------------------------------*/ /* CONNECTION CREATE */ static hc_result_t *_connection_create_serialize(hc_sock_t *socket, hc_connection_t *connection, bool async) { hc_result_t *res = malloc(sizeof(*res)); char connection_s[MAXSZ_HC_CONNECTION]; int rc = hc_connection_snprintf(connection_s, MAXSZ_HC_CONNECTION, connection); if (rc >= MAXSZ_HC_CONNECTION) WARN( "[_hcng_connection_create] Unexpected truncation of connection " "string"); DEBUG("[_hcng_connection_create] connection=%s async=%s", connection_s, BOOLSTR(async)); if (hc_connection_validate(connection) < 0) { res->success = false; return res; } msg_connection_add_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_ADD, .length = 1, .seq_num = 0, }, .payload = { .remote_ip = connection->remote_addr, .local_ip = connection->local_addr, .remote_port = htons(connection->remote_port), .local_port = htons(connection->local_port), .family = connection->family, .type = connection->type, .admin_state = connection->admin_state, #ifdef WITH_POLICY .priority = connection->priority, .tags = connection->tags, #endif /* WITH_POLICY */ }}; rc = snprintf(msg.payload.symbolic, SYMBOLIC_NAME_LEN, "%s", connection->name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_create] Unexpected truncation of symbolic name " "string"); // snprintf(msg.payload.interface_name, INTERFACE_NAME_LEN, "%s", // connection->interface_name); hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_CONNECTION_ADD, .size_in = sizeof(cmd_connection_add_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.connection_add = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static hc_result_t *_hcng_connection_create_conf(hc_sock_t *s, hc_connection_t *connection) { return _connection_create_serialize(s, connection, false); } static int _hcng_connection_create_internal(hc_sock_t *socket, hc_connection_t *connection, bool async) { hc_result_t *result = _connection_create_serialize(socket, connection, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); DEBUG("[_hcng_connection_create] done or error"); return ret; } static int _hcng_connection_create(hc_sock_t *s, hc_connection_t *connection) { DEBUG("[_hcng_connection_create]"); return _hcng_connection_create_internal(s, connection, false); } static int _hcng_connection_create_async(hc_sock_t *s, hc_connection_t *connection) { DEBUG("[_hcng_connection_create_async]"); return _hcng_connection_create_internal(s, connection, true); } /* CONNECTION PARSE */ static int hc_connection_parse(void *in, hc_connection_t *connection) { int rc; cmd_connection_list_item_t *item = (cmd_connection_list_item_t *)in; if (!IS_VALID_ID(item->id)) { ERROR("[hc_connection_parse] Invalid id received"); return -1; } *connection = (hc_connection_t){ .id = item->id, .type = item->type, .family = item->family, .local_addr = item->local_addr, .local_port = ntohs(item->local_port), .remote_addr = item->remote_addr, .remote_port = ntohs(item->remote_port), .admin_state = item->admin_state, #ifdef WITH_POLICY .priority = item->priority, .tags = item->tags, #endif /* WITH_POLICY */ .state = item->state, }; rc = snprintf(connection->name, SYMBOLIC_NAME_LEN, "%s", item->name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[hc_connection_parse] Unexpected truncation of symbolic name " "string"); rc = snprintf(connection->interface_name, INTERFACE_LEN, "%s", item->interface_name); if (rc >= INTERFACE_LEN) WARN( "[hc_connection_parse] Unexpected truncation of interface name " "string"); if (hc_connection_validate(connection) < 0) return -1; return 0; } /* CONNECTION LIST */ static int _hcng_connection_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { DEBUG("[hc_connection_list] async=%s", BOOLSTR(async)); msg_connection_list_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_LIST, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_CONNECTION_LIST, .size_in = sizeof(cmd_connection_list_item_t), .size_out = sizeof(hc_connection_t), .parse = (HC_PARSE)hc_connection_parse, }; int ret = _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, pdata, async); DEBUG("[hc_connection_list] done or error"); return ret; } static int _hcng_connection_list(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[hc_connection_list]"); return _hcng_connection_list_internal(s, pdata, false); } static int _hcng_connection_list_async(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[hc_connection_list_async]"); return _hcng_connection_list_internal(s, pdata, true); } /* CONNECTION GET */ static int _hcng_connection_get(hc_sock_t *socket, hc_connection_t *connection, hc_connection_t **connection_found) { hc_data_t *connections; hc_connection_t *found; char connection_s[MAXSZ_HC_CONNECTION]; int rc = hc_connection_snprintf(connection_s, MAXSZ_HC_CONNECTION, connection); if (rc >= MAXSZ_HC_CONNECTION) WARN("[hc_connection_get] Unexpected truncation of connection string"); DEBUG("[hc_connection_get] connection=%s", connection_s); if (_hcng_connection_list(socket, &connections) < 0) return -1; /* Test */ if (hc_connection_find(connections, connection, &found) < 0) { hc_data_free(connections); return -1; } if (found) { *connection_found = malloc(sizeof(hc_connection_t)); if (!*connection_found) return -1; **connection_found = *found; } else { *connection_found = NULL; } hc_data_free(connections); return 0; } /* CONNECTION DELETE */ static hc_result_t *_hcng_connection_delete_serialize( hc_sock_t *socket, hc_connection_t *connection, bool async) { hc_result_t *res = malloc(sizeof(*res)); res->success = false; char connection_s[MAXSZ_HC_CONNECTION]; int rc = hc_connection_snprintf(connection_s, MAXSZ_HC_CONNECTION, connection); if (rc >= MAXSZ_HC_CONNECTION) WARN( "[_hcng_connection_delete] Unexpected truncation of connection " "string"); DEBUG("[_hcng_connection_delete] connection=%s async=%s", connection_s, BOOLSTR(async)); msg_connection_remove_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_REMOVE, .length = 1, .seq_num = 0, }, }; if (connection->id) { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d", connection->id); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_delete] Unexpected truncation of symbolic name " "string"); } else if (*connection->name) { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", connection->name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_delete] Unexpected truncation of symbolic name " "string"); } else { hc_connection_t *connection_found; if (hc_connection_get(socket, connection, &connection_found) < 0) return res; if (!connection_found) return res; rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d", connection_found->id); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_delete] Unexpected truncation of symbolic name " "string"); free(connection_found); } hc_command_params_t params = { .cmd = ACTION_DELETE, .cmd_id = COMMAND_TYPE_CONNECTION_REMOVE, .size_in = sizeof(cmd_connection_remove_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.connection_remove = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static hc_result_t *_hcng_connection_delete_conf(hc_sock_t *s, hc_connection_t *connection) { return _hcng_connection_delete_serialize(s, connection, false); } static int _hcng_connection_delete_internal(hc_sock_t *socket, hc_connection_t *connection, bool async) { hc_result_t *result = _hcng_connection_delete_serialize(socket, connection, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } static int _hcng_connection_delete(hc_sock_t *s, hc_connection_t *connection) { return _hcng_connection_delete_internal(s, connection, false); } static int _hcng_connection_delete_async(hc_sock_t *s, hc_connection_t *connection) { return _hcng_connection_delete_internal(s, connection, true); } /* CONNECTION UPDATE */ static int _hcng_connection_update_by_id(hc_sock_t *s, int hc_connection_id, hc_connection_t *connection) { // Not implemented return -1; } static int _hcng_connection_update(hc_sock_t *s, hc_connection_t *connection_current, hc_connection_t *connection_updated) { // Not implemented return -1; } /* CONNECTION SET ADMIN STATE */ static int _hcng_connection_set_admin_state_internal( hc_sock_t *socket, const char *conn_id_or_name, face_state_t state, bool async) { int rc; DEBUG( "[hc_connection_set_admin_state] connection_id/name=%s admin_state=%s " "async=%s", conn_id_or_name, face_state_str(state), BOOLSTR(async)); struct { cmd_header_t hdr; cmd_connection_set_admin_state_t payload; } msg = { .hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_SET_ADMIN_STATE, .length = 1, .seq_num = 0, }, .payload = { .admin_state = state, }, }; rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", conn_id_or_name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_set_admin_state] Unexpected truncation of symbolic " "name string"); hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_CONNECTION_SET_ADMIN_STATE, .size_in = sizeof(cmd_connection_set_admin_state_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_connection_set_admin_state(hc_sock_t *s, const char *conn_id_or_name, face_state_t state) { return _hcng_connection_set_admin_state_internal(s, conn_id_or_name, state, false); } static int _hcng_connection_set_admin_state_async(hc_sock_t *s, const char *conn_id_or_name, face_state_t state) { return _hcng_connection_set_admin_state_internal(s, conn_id_or_name, state, true); } #ifdef WITH_POLICY static int _hcng_connection_set_priority_internal(hc_sock_t *socket, const char *conn_id_or_name, uint32_t priority, bool async) { int rc; DEBUG( "[hc_connection_set_priority] connection_id/name=%s priority=%d " "async=%s", conn_id_or_name, priority, BOOLSTR(async)); struct { cmd_header_t hdr; cmd_connection_set_priority_t payload; } msg = { .hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_SET_PRIORITY, .length = 1, .seq_num = 0, }, .payload = { .priority = priority, }, }; rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", conn_id_or_name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_set_priority] Unexpected truncation of symbolic " "name " "string"); hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_CONNECTION_SET_PRIORITY, .size_in = sizeof(cmd_connection_set_priority_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_connection_set_priority(hc_sock_t *s, const char *conn_id_or_name, uint32_t priority) { return _hcng_connection_set_priority_internal(s, conn_id_or_name, priority, false); } static int _hcng_connection_set_priority_async(hc_sock_t *s, const char *conn_id_or_name, uint32_t priority) { return _hcng_connection_set_priority_internal(s, conn_id_or_name, priority, true); } #endif // WITH_POLICY static int _hcng_connection_set_tags_internal(hc_sock_t *s, const char *conn_id_or_name, policy_tags_t tags, bool async) { int rc; DEBUG("[hc_connection_set_tags] connection_id/name=%s tags=%d async=%s", conn_id_or_name, tags, BOOLSTR(async)); struct { cmd_header_t hdr; cmd_connection_set_tags_t payload; } msg = { .hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_SET_TAGS, .length = 1, .seq_num = 0, }, .payload = { .tags = tags, }, }; rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", conn_id_or_name); if (rc >= SYMBOLIC_NAME_LEN) WARN( "[_hc_connection_set_tags] Unexpected truncation of symbolic name " "string"); hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_CONNECTION_SET_TAGS, .size_in = sizeof(cmd_connection_set_tags_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(s, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_connection_set_tags(hc_sock_t *s, const char *conn_id_or_name, policy_tags_t tags) { return _hcng_connection_set_tags_internal(s, conn_id_or_name, tags, false); } static int _hcng_connection_set_tags_async(hc_sock_t *s, const char *conn_id_or_name, policy_tags_t tags) { return _hcng_connection_set_tags_internal(s, conn_id_or_name, tags, true); } /*----------------------------------------------------------------------------* * Routes *----------------------------------------------------------------------------*/ /* ROUTE CREATE */ static hc_result_t *_route_create_serialize(hc_sock_t *socket, hc_route_t *route, bool async) { hc_result_t *res = malloc(sizeof(*res)); char route_s[MAXSZ_HC_ROUTE]; int rc = hc_route_snprintf(route_s, MAXSZ_HC_ROUTE, route); if (rc >= MAXSZ_HC_ROUTE) WARN("[_hc_route_create] Unexpected truncation of route string"); if (rc < 0) WARN("[_hc_route_create] Error building route string"); else DEBUG("[hc_route_create] route=%s async=%s", route_s, BOOLSTR(async)); if (hc_route_validate(route) < 0) { res->success = false; return res; } msg_route_add_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_ROUTE_ADD, .length = 1, .seq_num = 0, }, .payload = { .address = route->remote_addr, .cost = route->cost, .family = route->family, .len = route->len, }}; /* * The route commands expects the ID or name as part of the * symbolic_or_connid attribute. */ if (route->name[0] != '\0') { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", route->name); } else { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d", route->face_id); } if (rc >= SYMBOLIC_NAME_LEN) WARN("[_hc_route_create] Unexpected truncation of symbolic name string"); hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_ROUTE_ADD, .size_in = sizeof(cmd_route_add_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.route_add = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static hc_result_t *_hcng_route_create_conf(hc_sock_t *s, hc_route_t *route) { return _route_create_serialize(s, route, false); } static int _hcng_route_create_internal(hc_sock_t *socket, hc_route_t *route, bool async) { hc_result_t *result = _route_create_serialize(socket, route, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } static int _hcng_route_create(hc_sock_t *s, hc_route_t *route) { return _hcng_route_create_internal(s, route, false); } static int _hcng_route_create_async(hc_sock_t *s, hc_route_t *route) { return _hcng_route_create_internal(s, route, true); } /* ROUTE DELETE */ static int _hcng_route_delete_internal(hc_sock_t *socket, hc_route_t *route, bool async) { char route_s[MAXSZ_HC_ROUTE]; int rc = hc_route_snprintf(route_s, MAXSZ_HC_ROUTE, route); if (rc >= MAXSZ_HC_ROUTE) WARN("[_hc_route_delete] Unexpected truncation of route string"); DEBUG("[hc_route_delete] route=%s async=%s", route_s, BOOLSTR(async)); if (!IS_VALID_FAMILY(route->family)) return -1; struct { cmd_header_t hdr; cmd_route_remove_t payload; } msg = {.hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_ROUTE_REMOVE, .length = 1, .seq_num = 0, }, .payload = { .address = route->remote_addr, .family = route->family, .len = route->len, }}; /* * The route commands expects the ID or name as part of the * symbolic_or_connid attribute. */ if (route->name[0] != '\0') { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%s", route->name); } else { rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d", route->face_id); } hc_command_params_t params = { .cmd = ACTION_DELETE, .cmd_id = COMMAND_TYPE_ROUTE_REMOVE, .size_in = sizeof(cmd_route_remove_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_route_delete(hc_sock_t *s, hc_route_t *route) { return _hcng_route_delete_internal(s, route, false); } static int _hcng_route_delete_async(hc_sock_t *s, hc_route_t *route) { return _hcng_route_delete_internal(s, route, true); } /* ROUTE PARSE */ static int hc_route_parse(void *in, hc_route_t *route) { cmd_route_list_item_t *item = (cmd_route_list_item_t *)in; *route = (hc_route_t){ .name = "", /* This is not reported back */ .face_id = item->connection_id, .family = item->family, .remote_addr = item->address, .len = item->len, .cost = item->cost, }; if (hc_route_validate(route) < 0) return -1; return 0; } /* ROUTE LIST */ static int _hcng_route_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { // DEBUG("[hc_route_list] async=%s", BOOLSTR(async)); msg_route_list_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_ROUTE_LIST, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_ROUTE_LIST, .size_in = sizeof(cmd_route_list_item_t), .size_out = sizeof(hc_route_t), .parse = (HC_PARSE)hc_route_parse, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, pdata, async); } static int _hcng_route_list(hc_sock_t *s, hc_data_t **pdata) { return _hcng_route_list_internal(s, pdata, false); } static int _hcng_route_list_async(hc_sock_t *s) { return _hcng_route_list_internal(s, NULL, true); } /*----------------------------------------------------------------------------* * Face * * Face support is not directly available in hicn-light, but we can offer such * an interface through a combination of listeners and connections. The code * starts with some conversion functions between faces/listeners/connections. * * We also need to make sure that there always exist a (single) listener when *a connection is created, and in the hICN face case, that there is a single * connection attached to this listener. * *----------------------------------------------------------------------------*/ /* FACE CREATE */ static int _hcng_face_create(hc_sock_t *socket, hc_face_t *face) { hc_listener_t listener; hc_listener_t *listener_found; hc_connection_t connection; hc_connection_t *connection_found; char face_s[MAXSZ_HC_FACE]; int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face); if (rc >= MAXSZ_HC_FACE) WARN("[hc_face_create] Unexpected truncation of face string"); DEBUG("[hc_face_create] face=%s", face_s); switch (face->face.type) { case FACE_TYPE_HICN: case FACE_TYPE_TCP: case FACE_TYPE_UDP: if (hc_face_to_connection(face, &connection, false) < 0) { ERROR("[hc_face_create] Could not convert face to connection."); return -1; } /* Ensure we have a corresponding local listener */ if (hc_connection_to_local_listener(&connection, &listener) < 0) { ERROR("[hc_face_create] Could not convert face to local listener."); return -1; } if (_hcng_listener_get(socket, &listener, &listener_found) < 0) { ERROR("[hc_face_create] Could not retrieve listener"); return -1; } if (!listener_found) { /* We need to create the listener if it does not exist */ if (hc_listener_create(socket, &listener) < 0) { ERROR("[hc_face_create] Could not create listener."); free(listener_found); return -1; } } else { free(listener_found); } /* Create corresponding connection */ if (_hcng_connection_create(socket, &connection) < 0) { ERROR("[hc_face_create] Could not create connection."); return -1; } /* * Once the connection is created, we need to list all connections * and compare with the current one to find the created face ID. */ if (_hcng_connection_get(socket, &connection, &connection_found) < 0) { ERROR("[hc_face_create] Could not retrieve connection"); return -1; } if (!connection_found) { ERROR("[hc_face_create] Could not find newly created connection."); return -1; } face->id = connection_found->id; free(connection_found); break; case FACE_TYPE_HICN_LISTENER: case FACE_TYPE_TCP_LISTENER: case FACE_TYPE_UDP_LISTENER: if (hc_face_to_listener(face, &listener) < 0) { ERROR("Could not convert face to listener."); return -1; } if (hc_listener_create(socket, &listener) < 0) { ERROR("[hc_face_create] Could not create listener."); return -1; } break; default: ERROR("[hc_face_create] Unknwon face type."); return -1; }; return 0; } static int _hcng_face_get(hc_sock_t *socket, hc_face_t *face, hc_face_t **face_found) { hc_listener_t listener; hc_listener_t *listener_found; hc_connection_t connection; hc_connection_t *connection_found; char face_s[MAXSZ_HC_FACE]; int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face); if (rc >= MAXSZ_HC_FACE) WARN("[hc_face_get] Unexpected truncation of face string"); DEBUG("[hc_face_get] face=%s", face_s); switch (face->face.type) { case FACE_TYPE_HICN: case FACE_TYPE_TCP: case FACE_TYPE_UDP: if (hc_face_to_connection(face, &connection, false) < 0) return -1; if (_hcng_connection_get(socket, &connection, &connection_found) < 0) return -1; if (!connection_found) { *face_found = NULL; return 0; } *face_found = malloc(sizeof(hc_face_t)); hc_connection_to_face(connection_found, *face_found); free(connection_found); break; case FACE_TYPE_HICN_LISTENER: case FACE_TYPE_TCP_LISTENER: case FACE_TYPE_UDP_LISTENER: if (hc_face_to_listener(face, &listener) < 0) return -1; if (_hcng_listener_get(socket, &listener, &listener_found) < 0) return -1; if (!listener_found) { *face_found = NULL; return 0; } *face_found = malloc(sizeof(hc_face_t)); hc_listener_to_face(listener_found, *face_found); free(listener_found); break; default: return -1; } return 0; } /* FACE DELETE */ static int _hcng_face_delete(hc_sock_t *socket, hc_face_t *face, uint8_t delete_listener) { char face_s[MAXSZ_HC_FACE]; int rc = hc_face_snprintf(face_s, MAXSZ_HC_FACE, face); if (rc >= MAXSZ_HC_FACE) WARN("[hc_face_delete] Unexpected truncation of face string"); DEBUG("[hc_face_delete] face=%s", face_s); hc_connection_t connection; if (hc_face_to_connection(face, &connection, false) < 0) { ERROR("[hc_face_delete] Could not convert face to connection."); return -1; } if (_hcng_connection_delete(socket, &connection) < 0) { ERROR("[hc_face_delete] Error removing connection"); return -1; } if (!delete_listener) { return 0; } /* If this is the last connection attached to the listener, remove it */ hc_data_t *connections; hc_listener_t listener = {{0}}; /* * Ensure we have a corresponding local listener * NOTE: hc_face_to_listener is not appropriate */ if (hc_connection_to_local_listener(&connection, &listener) < 0) { ERROR("[hc_face_create] Could not convert face to local listener."); return -1; } #if 1 /* * The name is generated to prepare listener creation, we need it to be * empty for deletion. The id should not need to be reset though. */ listener.id = 0; memset(listener.name, 0, sizeof(listener.name)); #endif if (_hcng_connection_list(socket, &connections) < 0) { ERROR("[hc_face_delete] Error getting the list of listeners"); return -1; } bool delete = true; foreach_connection(c, connections) { if ((ip_address_cmp(&c->local_addr, &listener.local_addr, c->family) == 0) && (c->local_port == listener.local_port) && (strcmp(c->interface_name, listener.interface_name) == 0)) { delete = false; } } if (delete) { if (_hcng_listener_delete(socket, &listener) < 0) { ERROR("[hc_face_delete] Error removing listener"); return -1; } } hc_data_free(connections); return 0; } /* FACE LIST */ static int _hcng_face_list(hc_sock_t *socket, hc_data_t **pdata) { hc_data_t *connection_data; hc_face_t face; DEBUG("[hc_face_list]"); if (_hcng_connection_list(socket, &connection_data) < 0) { ERROR("[hc_face_list] Could not list connections."); return -1; } hc_data_t *face_data = hc_data_create(sizeof(hc_connection_t), sizeof(hc_face_t), NULL); foreach_connection(c, connection_data) { if (hc_connection_to_face(c, &face) < 0) { ERROR("[hc_face_list] Could not convert connection to face."); goto ERR; } hc_data_push(face_data, &face); } *pdata = face_data; hc_data_free(connection_data); DEBUG("[hc_face_list] done"); return 0; ERR: hc_data_free(connection_data); DEBUG("[hc_face_list] error"); return -1; } static int hc_connection_parse_to_face(void *in, hc_face_t *face) { hc_connection_t connection; if (hc_connection_parse(in, &connection) < 0) { ERROR("[hc_connection_parse_to_face] Could not parse connection"); return -1; } if (hc_connection_to_face(&connection, face) < 0) { ERROR( "[hc_connection_parse_to_face] Could not convert connection to " "face."); return -1; } return 0; } static int _hcng_face_list_async(hc_sock_t *socket) { struct { cmd_header_t hdr; } msg = { .hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CONNECTION_LIST, .length = 0, .seq_num = 0, }, }; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_CONNECTION_LIST, .size_in = sizeof(cmd_connection_list_item_t), .size_out = sizeof(hc_face_t), .parse = (HC_PARSE)hc_connection_parse_to_face, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, true); } static int _hcng_face_set_admin_state(hc_sock_t *s, const char *conn_id_or_name, face_state_t admin_state) { return hc_connection_set_admin_state(s, conn_id_or_name, admin_state); } #ifdef WITH_POLICY static int _hcng_face_set_priority(hc_sock_t *s, const char *conn_id_or_name, uint32_t priority) { return hc_connection_set_priority(s, conn_id_or_name, priority); } static int _hcng_face_set_tags(hc_sock_t *s, const char *conn_id_or_name, policy_tags_t tags) { return hc_connection_set_tags(s, conn_id_or_name, tags); } #endif // WITH_POLICY /*----------------------------------------------------------------------------* * Punting *----------------------------------------------------------------------------*/ static int _hcng_punting_create_internal(hc_sock_t *socket, hc_punting_t *punting, bool async) { int rc; if (hc_punting_validate(punting) < 0) return -1; struct { cmd_header_t hdr; cmd_punting_add_t payload; } msg = {.hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_PUNTING_ADD, .length = 1, .seq_num = 0, }, .payload = { .address = punting->prefix, .family = punting->family, .len = punting->prefix_len, }}; rc = snprintf(msg.payload.symbolic_or_connid, SYMBOLIC_NAME_LEN, "%d", punting->face_id); if (rc >= SYMBOLIC_NAME_LEN) WARN("[_hc_punting_create] Unexpected truncation of symbolic name string"); hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_PUNTING_ADD, .size_in = sizeof(cmd_punting_add_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_punting_create(hc_sock_t *s, hc_punting_t *punting) { return _hcng_punting_create_internal(s, punting, false); } static int _hcng_punting_create_async(hc_sock_t *s, hc_punting_t *punting) { return _hcng_punting_create_internal(s, punting, true); } static int _hcng_punting_get(hc_sock_t *s, hc_punting_t *punting, hc_punting_t **punting_found) { ERROR("hc_punting_get not (yet) implemented."); return -1; } static int _hcng_punting_delete(hc_sock_t *s, hc_punting_t *punting) { ERROR("hc_punting_delete not (yet) implemented."); return -1; } #if 0 static int hc_punting_parse(void * in, hc_punting_t * punting) { ERROR("hc_punting_parse not (yet) implemented."); return -1; } #endif static int _hcng_punting_list(hc_sock_t *s, hc_data_t **pdata) { ERROR("hc_punting_list not (yet) implemented."); return -1; } /*----------------------------------------------------------------------------* * Cache *----------------------------------------------------------------------------*/ /* CACHE SET STORE */ static int _hcng_cache_set_store_internal(hc_sock_t *socket, hc_cache_t *cache, bool async) { msg_cache_set_store_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CACHE_SET_STORE, .length = 1, .seq_num = 0, }, .payload = { .activate = cache->store, }}; hc_command_params_t params = { .cmd = ACTION_STORE, .cmd_id = COMMAND_TYPE_CACHE_SET_STORE, .size_in = sizeof(cmd_cache_set_store_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_cache_set_store(hc_sock_t *s, hc_cache_t *cache) { return _hcng_cache_set_store_internal(s, cache, false); } static int _hcng_cache_set_store_async(hc_sock_t *s, hc_cache_t *cache) { return _hcng_cache_set_store_internal(s, cache, true); } /* CACHE SET SERVE */ static int _hcng_cache_set_serve_internal(hc_sock_t *socket, hc_cache_t *cache, bool async) { msg_cache_set_serve_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CACHE_SET_SERVE, .length = 1, .seq_num = 0, }, .payload = { .activate = cache->serve, }}; hc_command_params_t params = { .cmd = ACTION_SERVE, .cmd_id = COMMAND_TYPE_CACHE_SET_SERVE, .size_in = sizeof(cmd_cache_set_serve_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_cache_set_serve(hc_sock_t *s, hc_cache_t *cache) { return _hcng_cache_set_serve_internal(s, cache, false); } static int _hcng_cache_set_serve_async(hc_sock_t *s, hc_cache_t *cache) { return _hcng_cache_set_serve_internal(s, cache, true); } /* CACHE CLEAR */ static int _hcng_cache_clear_internal(hc_sock_t *socket, hc_cache_t *cache, bool async) { msg_cache_clear_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CACHE_CLEAR, .length = 1, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_CLEAR, .cmd_id = COMMAND_TYPE_CACHE_CLEAR, .size_in = sizeof(cmd_cache_clear_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_cache_clear(hc_sock_t *s, hc_cache_t *cache) { return _hcng_cache_clear_internal(s, cache, false); } /* CACHE PARSE */ static int hc_cache_parse(void *in, hc_cache_info_t *cache_info) { cmd_cache_list_reply_t *item = (cmd_cache_list_reply_t *)in; *cache_info = (hc_cache_info_t){.store = item->store_in_cs, .serve = item->serve_from_cs, .cs_size = item->cs_size, .num_stale_entries = item->num_stale_entries}; return 0; } /* CACHE LIST */ static hc_result_t *_hcng_cache_list_serialize(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *res = malloc(sizeof(*res)); DEBUG("[hc_cache_list] async=%s", BOOLSTR(async)); msg_cache_list_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_CACHE_LIST, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_CACHE_LIST, .size_in = sizeof(cmd_cache_list_reply_t), .size_out = sizeof(hc_cache_info_t), .parse = (HC_PARSE)hc_cache_parse, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.cache_list = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static int _hcng_cache_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *result = _hcng_cache_list_serialize(socket, pdata, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, pdata, result->async); } hc_result_free(result); return ret; } static int _hcng_cache_list(hc_sock_t *s, hc_data_t **pdata) { return _hcng_cache_list_internal(s, pdata, false); } /*----------------------------------------------------------------------------* * Strategy *----------------------------------------------------------------------------*/ // per prefix static hc_result_t *_strategy_set_serialize(hc_sock_t *socket, hc_strategy_t *strategy) { hc_result_t *res = malloc(sizeof(*res)); char strategy_s[MAXSZ_HC_STRATEGY]; int rc = strcpy_s(strategy->name, MAXSZ_STRATEGY_NAME, strategy_str(strategy->type)); if (rc != EOK) goto ERR; rc = hc_strategy_snprintf(strategy_s, MAXSZ_HC_STRATEGY, strategy); if (rc >= MAXSZ_HC_STRATEGY) WARN("[_hcng_strategy_create] Unexpected truncation of strategy string"); DEBUG("[_hcng_strategy_create] strategy=%s", strategy_s); if (!IS_VALID_FAMILY(strategy->family) || !IS_VALID_STRATEGY_TYPE(strategy->type)) { goto ERR; } msg_strategy_set_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_STRATEGY_SET, .length = 1, .seq_num = 0, }, .payload = { .address = strategy->address, .family = strategy->family, .len = strategy->len, .type = strategy->type, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_STRATEGY_SET, .size_in = sizeof(cmd_strategy_set_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.strategy_set = msg.payload, }, .params = params, .async = false, .success = true, }; return res; ERR: res->success = false; return res; } static hc_result_t *_strategy_add_local_prefix_serialize( hc_sock_t *socket, hc_strategy_t *strategy) { hc_result_t *res = malloc(sizeof(*res)); char strategy_s[MAXSZ_HC_STRATEGY]; int rc = strcpy_s(strategy->name, MAXSZ_STRATEGY_NAME, strategy_str(strategy->type)); if (rc != EOK) goto ERR; rc = hc_strategy_snprintf(strategy_s, MAXSZ_HC_STRATEGY, strategy); if (rc >= MAXSZ_HC_STRATEGY) WARN("[_hcng_strategy_create] Unexpected truncation of strategy string"); DEBUG("[_hcng_strategy_create] strategy=%s", strategy_s); if (!IS_VALID_FAMILY(strategy->family) || !IS_VALID_STRATEGY_TYPE(strategy->type) || !IS_VALID_FAMILY(strategy->local_family)) { goto ERR; } msg_strategy_add_local_prefix_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_STRATEGY_ADD_LOCAL_PREFIX, .length = 1, .seq_num = 0, }, .payload = { .type = strategy->type, .address = strategy->address, .family = strategy->family, .len = strategy->len, .local_address = strategy->local_address, .local_family = strategy->local_family, .local_len = strategy->local_len, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_STRATEGY_ADD_LOCAL_PREFIX, .size_in = sizeof(cmd_strategy_add_local_prefix_t), .size_out = 0, .parse = NULL, }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.strategy_add_local_prefix = msg.payload, }, .params = params, .async = false, .success = true, }; return res; ERR: res->success = false; return res; } static hc_result_t *_hcng_strategy_set_conf(hc_sock_t *s, hc_strategy_t *strategy) { return _strategy_set_serialize(s, strategy); } static int _hcng_strategy_set(hc_sock_t *socket, hc_strategy_t *strategy) { hc_result_t *result = _strategy_set_serialize(socket, strategy); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } static hc_result_t *_hcng_strategy_add_local_prefix_conf( hc_sock_t *s, hc_strategy_t *strategy) { return _strategy_add_local_prefix_serialize(s, strategy); } static int _hcng_strategy_add_local_prefix(hc_sock_t *socket, hc_strategy_t *strategy) { hc_result_t *result = _strategy_add_local_prefix_serialize(socket, strategy); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } /* How to retrieve that from the forwarder ? */ static const char *strategies[] = { "random", "load_balancer", }; #define ARRAY_SIZE(array) (sizeof(array) / sizeof(*array)) static int _hcng_strategy_list(hc_sock_t *s, hc_data_t **data) { int rc; *data = hc_data_create(0, sizeof(hc_strategy_t), NULL); for (unsigned i = 0; i < ARRAY_SIZE(strategies); i++) { hc_strategy_t *strategy = (hc_strategy_t *)hc_data_get_next(*data); if (!strategy) return -1; rc = snprintf(strategy->name, MAXSZ_STRATEGY_NAME, "%s", strategies[i]); if (rc >= MAXSZ_STRATEGY_NAME) WARN("[hc_strategy_list] Unexpected truncation of strategy name string"); (*data)->size++; } return 0; } /*----------------------------------------------------------------------------* * WLDR *----------------------------------------------------------------------------*/ // per connection static int _hcng_wldr_set(hc_sock_t *s /* XXX */) { return 0; } /*----------------------------------------------------------------------------* * MAP-Me *----------------------------------------------------------------------------*/ static int _hcng_mapme_set(hc_sock_t *socket, int enabled) { msg_mapme_enable_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_MAPME_ENABLE, .length = 1, .seq_num = 0, }, .payload = { .activate = enabled, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_MAPME_ENABLE, .size_in = sizeof(cmd_mapme_enable_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, false); } static int _hcng_mapme_set_discovery(hc_sock_t *socket, int enabled) { msg_mapme_enable_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_MAPME_SET_DISCOVERY, .length = 1, .seq_num = 0, }, .payload = { .activate = enabled, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_MAPME_SET_DISCOVERY, .size_in = sizeof(cmd_mapme_set_discovery_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, false); } static int _hcng_mapme_set_timescale(hc_sock_t *socket, uint32_t timescale) { msg_mapme_set_timescale_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_MAPME_SET_TIMESCALE, .length = 1, .seq_num = 0, }, .payload = { .timePeriod = timescale, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_MAPME_SET_TIMESCALE, .size_in = sizeof(cmd_mapme_set_timescale_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, false); } static int _hcng_mapme_set_retx(hc_sock_t *socket, uint32_t timescale) { msg_mapme_set_retx_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_MAPME_SET_RETX, .length = 1, .seq_num = 0, }, .payload = { .timePeriod = timescale, }}; hc_command_params_t params = { .cmd = ACTION_SET, .cmd_id = COMMAND_TYPE_MAPME_SET_RETX, .size_in = sizeof(msg_mapme_set_retx_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, false); } static int _hcng_mapme_send_update(hc_sock_t *socket, hc_mapme_t *mapme) { if (!IS_VALID_FAMILY(mapme->family)) return -1; msg_mapme_send_update_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_MAPME_SEND_UPDATE, .length = 1, .seq_num = 0, }, }; hc_command_params_t params = { .cmd = ACTION_UPDATE, .cmd_id = COMMAND_TYPE_MAPME_SEND_UPDATE, .size_in = sizeof(msg_mapme_send_update_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, false); } /*----------------------------------------------------------------------------* * Policy *----------------------------------------------------------------------------*/ #ifdef WITH_POLICY /* POLICY CREATE */ static int _hcng_policy_create_internal(hc_sock_t *socket, hc_policy_t *policy, bool async) { if (!IS_VALID_FAMILY(policy->family)) return -1; struct { cmd_header_t hdr; cmd_policy_add_t payload; } msg = {.hdr = { .message_type = REQUEST_LIGHT, COMMAND_TYPE_POLICY_ADD, .length = 1, .seq_num = 0, }, .payload = { .address = policy->remote_addr, .family = policy->family, .len = policy->len, .policy = policy->policy, }}; hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_POLICY_ADD, .size_in = sizeof(cmd_policy_add_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_policy_create(hc_sock_t *s, hc_policy_t *policy) { return _hcng_policy_create_internal(s, policy, false); } static int _hcng_policy_create_async(hc_sock_t *s, hc_policy_t *policy) { return _hcng_policy_create_internal(s, policy, true); } /* POLICY DELETE */ static int _hcng_policy_delete_internal(hc_sock_t *socket, hc_policy_t *policy, bool async) { if (!IS_VALID_FAMILY(policy->family)) return -1; struct { cmd_header_t hdr; cmd_policy_remove_t payload; } msg = {.hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_POLICY_REMOVE, .length = 1, .seq_num = 0, }, .payload = { .address = policy->remote_addr, .family = policy->family, .len = policy->len, }}; hc_command_params_t params = { .cmd = ACTION_DELETE, .cmd_id = COMMAND_TYPE_POLICY_REMOVE, .size_in = sizeof(cmd_policy_remove_t), .size_out = 0, .parse = NULL, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, NULL, async); } static int _hcng_policy_delete(hc_sock_t *s, hc_policy_t *policy) { return _hcng_policy_delete_internal(s, policy, false); } static int _hcng_policy_delete_async(hc_sock_t *s, hc_policy_t *policy) { return _hcng_policy_delete_internal(s, policy, true); } /* POLICY PARSE */ static int hc_policy_parse(void *in, hc_policy_t *policy) { cmd_policy_list_item_t *item = (cmd_policy_list_item_t *)in; if (!IS_VALID_ADDRESS(&item->address, item->family)) { ERROR("[hc_policy_parse] Invalid address"); return -1; } if (!IS_VALID_FAMILY(item->family)) { ERROR("[hc_policy_parse] Invalid family"); return -1; } if (!IS_VALID_PREFIX_LEN(item->len)) { ERROR("[hc_policy_parse] Invalid len"); return -1; } if (!IS_VALID_POLICY(item->policy)) { ERROR("[hc_policy_parse] Invalid policy"); return -1; } *policy = (hc_policy_t){ .family = item->family, .remote_addr = item->address, .len = item->len, .policy = item->policy, }; return 0; } /* POLICY LIST */ static int _hcng_policy_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { struct { cmd_header_t hdr; } msg = { .hdr = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_POLICY_LIST, .length = 0, .seq_num = 0, }, }; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_POLICY_LIST, .size_in = sizeof(cmd_policy_list_item_t), .size_out = sizeof(hc_policy_t), .parse = (HC_PARSE)hc_policy_parse, }; return _hcng_execute_command(socket, (hc_msg_t *)&msg, sizeof(msg), ¶ms, pdata, async); } static int _hcng_policy_list(hc_sock_t *s, hc_data_t **pdata) { return _hcng_policy_list_internal(s, pdata, false); } static int _hcng_policy_list_async(hc_sock_t *s, hc_data_t **pdata) { return _hcng_policy_list_internal(s, pdata, true); } #endif /* WITH_POLICY */ /*----------------------------------------------------------------------------* * Subscriptioins *----------------------------------------------------------------------------*/ /* SUBSCRIPTION CREATE */ static hc_result_t *_subscription_create_serialize( hc_sock_t *s, hc_subscription_t *subscription) { msg_subscription_add_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_SUBSCRIPTION_ADD, .length = 1, .seq_num = 0, }, .payload = {.topics = subscription->topics}}; hc_command_params_t params = { .cmd = ACTION_CREATE, .cmd_id = COMMAND_TYPE_SUBSCRIPTION_ADD, .size_in = sizeof(cmd_subscription_add_t), .size_out = 0, .parse = NULL, }; hc_result_t *res = malloc(sizeof(*res)); *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.subscription_add = msg.payload, }, .params = params, .async = false, .success = true, }; return res; } static hc_result_t *_hcng_subscription_create_conf( hc_sock_t *s, hc_subscription_t *subscription) { return _subscription_create_serialize(s, subscription); } static int _hcng_subscription_create(hc_sock_t *socket, hc_subscription_t *subscriiption) { hc_result_t *result = _subscription_create_serialize(socket, subscriiption); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } /* SUBSCRIPTION DELETE */ static hc_result_t *_subscription_delete_serialize( hc_sock_t *s, hc_subscription_t *subscription) { msg_subscription_remove_t msg = { .header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_SUBSCRIPTION_REMOVE, .length = 1, .seq_num = 0, }, .payload = {.topics = subscription->topics}}; hc_command_params_t params = { .cmd = ACTION_DELETE, .cmd_id = COMMAND_TYPE_SUBSCRIPTION_REMOVE, .size_in = sizeof(cmd_subscription_remove_t), .size_out = 0, .parse = NULL, }; hc_result_t *res = malloc(sizeof(*res)); *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.subscription_remove = msg.payload, }, .params = params, .async = false, .success = true, }; return res; } static hc_result_t *_hcng_subscription_delete_conf( hc_sock_t *s, hc_subscription_t *subscription) { return _subscription_delete_serialize(s, subscription); } static int _hcng_subscription_delete(hc_sock_t *socket, hc_subscription_t *subscriiption) { hc_result_t *result = _subscription_delete_serialize(socket, subscriiption); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, NULL, result->async); } hc_result_free(result); return ret; } /*----------------------------------------------------------------------------* * Statistics *----------------------------------------------------------------------------*/ /* STATS GET */ static hc_result_t *_hcng_stats_get_serialize(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *res = malloc(sizeof(*res)); DEBUG("[hc_stats_get] async=%s", BOOLSTR(async)); msg_stats_get_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_STATS_GET, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_GET, .cmd_id = COMMAND_TYPE_STATS_GET, .size_in = sizeof(hicn_light_stats_t), .size_out = sizeof(hicn_light_stats_t), }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.stats_get = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static int _hcng_stats_get_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *result = _hcng_stats_get_serialize(socket, pdata, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, pdata, result->async); } hc_result_free(result); DEBUG("[_hcng_stats_get] done or error"); return ret; } static int _hcng_stats_get(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[_hcng_stats_get]"); return _hcng_stats_get_internal(s, pdata, false); } /* STATS LIST */ static hc_result_t *_hcng_stats_list_serialize(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *res = malloc(sizeof(*res)); DEBUG("[hc_stats_list] async=%s", BOOLSTR(async)); msg_stats_list_t msg = {.header = { .message_type = REQUEST_LIGHT, .command_id = COMMAND_TYPE_STATS_LIST, .length = 0, .seq_num = 0, }}; hc_command_params_t params = { .cmd = ACTION_LIST, .cmd_id = COMMAND_TYPE_STATS_LIST, .size_in = sizeof(cmd_stats_list_item_t), .size_out = sizeof(cmd_stats_list_item_t), }; *res = (hc_result_t){ .msg = (hc_msg_t){ .hdr = msg.header, .payload.stats_list = msg.payload, }, .params = params, .async = async, .success = true, }; return res; } static int _hcng_stats_list_internal(hc_sock_t *socket, hc_data_t **pdata, bool async) { hc_result_t *result = _hcng_stats_list_serialize(socket, pdata, async); int ret = INPUT_ERROR; if (result->success) { ret = _hcng_execute_command(socket, (hc_msg_t *)&result->msg, sizeof(result->msg), &result->params, pdata, result->async); } hc_result_free(result); DEBUG("[_hcng_stats_list] done or error"); return ret; } static int _hcng_stats_list(hc_sock_t *s, hc_data_t **pdata) { DEBUG("[_hcng_stats_list]"); return _hcng_stats_list_internal(s, pdata, false); } /* RESULT */ hc_msg_t *_hcng_result_get_msg(hc_result_t *result) { return &result->msg; } int _hcng_result_get_cmd_id(hc_result_t *result) { return result->params.cmd_id; } bool _hcng_result_get_success(hc_result_t *result) { return result->success; } static hc_sock_t hc_sock_light_ng_interface = (hc_sock_t){ .hc_sock_get_next_seq = _hcng_sock_light_get_next_seq, .hc_sock_set_nonblocking = _hcng_sock_light_set_nonblocking, .hc_sock_get_fd = _hcng_sock_light_get_fd, .hc_sock_connect = _hcng_sock_light_connect, .hc_sock_get_available = _hcng_sock_light_get_available, .hc_sock_send = _hcng_sock_light_send, .hc_sock_recv = _hcng_sock_light_recv, .hc_sock_process = _hcng_sock_light_process, .hc_sock_callback = _hcng_sock_light_callback, .hc_sock_reset = _hcng_sock_light_reset, .hc_sock_free = _hcng_sock_light_free, .hc_sock_increment_woff = _hcng_sock_increment_woff, .hc_sock_prepare_send = _hcng_sock_prepare_send, .hc_sock_set_recv_timeout_ms = _hcng_sock_set_recv_timeout_ms, .hc_listener_create = _hcng_listener_create, .hc_listener_create_async = _hcng_listener_create_async, .hc_listener_get = _hcng_listener_get, .hc_listener_delete = _hcng_listener_delete, .hc_listener_delete_async = _hcng_listener_delete_async, .hc_listener_list = _hcng_listener_list, .hc_listener_list_async = _hcng_listener_list_async, .hc_connection_create = _hcng_connection_create, .hc_connection_create_async = _hcng_connection_create_async, .hc_connection_get = _hcng_connection_get, .hc_connection_update_by_id = _hcng_connection_update_by_id, .hc_connection_update = _hcng_connection_update, .hc_connection_delete = _hcng_connection_delete, .hc_connection_delete_async = _hcng_connection_delete_async, .hc_connection_list = _hcng_connection_list, .hc_connection_list_async = _hcng_connection_list_async, .hc_connection_set_admin_state = _hcng_connection_set_admin_state, .hc_connection_set_admin_state_async = _hcng_connection_set_admin_state_async, #ifdef WITH_POLICY .hc_connection_set_priority = _hcng_connection_set_priority, .hc_connection_set_priority_async = _hcng_connection_set_priority_async, .hc_connection_set_tags = _hcng_connection_set_tags, .hc_connection_set_tags_async = _hcng_connection_set_tags_async, #endif // WITH_POLICY .hc_face_create = _hcng_face_create, .hc_face_get = _hcng_face_get, .hc_face_delete = _hcng_face_delete, .hc_face_list = _hcng_face_list, .hc_face_list_async = _hcng_face_list_async, .hc_face_set_admin_state = _hcng_face_set_admin_state, #ifdef WITH_POLICY .hc_face_set_priority = _hcng_face_set_priority, .hc_face_set_tags = _hcng_face_set_tags, #endif // WITH_POLICY .hc_subscription_create = _hcng_subscription_create, .hc_subscription_delete = _hcng_subscription_delete, .hc_stats_get = _hcng_stats_get, .hc_stats_list = _hcng_stats_list, .hc_route_create = _hcng_route_create, .hc_route_create_async = _hcng_route_create_async, .hc_route_delete = _hcng_route_delete, .hc_route_delete_async = _hcng_route_delete_async, .hc_route_list = _hcng_route_list, .hc_route_list_async = _hcng_route_list_async, .hc_punting_create = _hcng_punting_create, .hc_punting_create_async = _hcng_punting_create_async, .hc_punting_get = _hcng_punting_get, .hc_punting_delete = _hcng_punting_delete, .hc_punting_list = _hcng_punting_list, .hc_cache_set_store = _hcng_cache_set_store, .hc_cache_set_store_async = _hcng_cache_set_store_async, .hc_cache_set_serve = _hcng_cache_set_serve, .hc_cache_set_serve_async = _hcng_cache_set_serve_async, .hc_cache_clear = _hcng_cache_clear, .hc_cache_list = _hcng_cache_list, .hc_strategy_list = _hcng_strategy_list, .hc_strategy_set = _hcng_strategy_set, .hc_strategy_add_local_prefix = _hcng_strategy_add_local_prefix, .hc_wldr_set = _hcng_wldr_set, .hc_mapme_set = _hcng_mapme_set, .hc_mapme_set_discovery = _hcng_mapme_set_discovery, .hc_mapme_set_timescale = _hcng_mapme_set_timescale, .hc_mapme_set_retx = _hcng_mapme_set_retx, .hc_mapme_send_update = _hcng_mapme_send_update, #ifdef WITH_POLICY .hc_policy_create = _hcng_policy_create, .hc_policy_create_async = _hcng_policy_create_async, .hc_policy_delete = _hcng_policy_delete, .hc_policy_delete_async = _hcng_policy_delete_async, .hc_policy_list = _hcng_policy_list, .hc_policy_list_async = _hcng_policy_list_async, #endif // WITH_POLICY .hc_listener_create_conf = _hcng_listener_create_conf, .hc_listener_list_conf = _hcng_listener_list_conf, .hc_connection_create_conf = _hcng_connection_create_conf, .hc_connection_delete_conf = _hcng_connection_delete_conf, .hc_route_create_conf = _hcng_route_create_conf, .hc_strategy_set_conf = _hcng_strategy_set_conf, .hc_strategy_add_local_prefix_conf = _hcng_strategy_add_local_prefix_conf, .hc_subscription_create_conf = _hcng_subscription_create_conf, .hc_subscription_delete_conf = _hcng_subscription_delete_conf, .hc_result_get_msg = _hcng_result_get_msg, .hc_result_get_cmd_id = _hcng_result_get_cmd_id, .hc_result_get_success = _hcng_result_get_success, }; // Public contructors hc_sock_t *_hc_sock_create_url(const char *url) { hc_sock_light_t *s = malloc(sizeof(hc_sock_light_t)); if (!s) goto ERR_MALLOC; s->vft = hc_sock_light_ng_interface; s->url = url ? strdup(url) : NULL; s->fd = socket(AF_INET, SOCK_DGRAM, 0); if (s->fd < 0) goto ERR_SOCKET; if (_hcng_sock_set_recv_timeout_ms((hc_sock_t *)s, DEFAULT_SOCK_RECV_TIMEOUT_MS) < 0) goto ERR_SOCKET; if (_hcng_sock_light_reset((hc_sock_t *)s) < 0) goto ERR_RESET; s->seq = 0; s->cur_request = NULL; s->map = kh_init_sock_map(); if (!s->map) goto ERR_MAP; return (hc_sock_t *)(s); // hc_sock_light_map_free(s->map); ERR_MAP: ERR_RESET: if (s->url) free(s->url); close(s->fd); ERR_SOCKET: free(s); ERR_MALLOC: return NULL; }