diff options
Diffstat (limited to 'ctrl/libhicnctrl/src/modules/hicn_light_api.c')
| -rw-r--r-- | ctrl/libhicnctrl/src/modules/hicn_light_api.c | 2278 |
1 files changed, 0 insertions, 2278 deletions
diff --git a/ctrl/libhicnctrl/src/modules/hicn_light_api.c b/ctrl/libhicnctrl/src/modules/hicn_light_api.c deleted file mode 100644 index d1a055777..000000000 --- a/ctrl/libhicnctrl/src/modules/hicn_light_api.c +++ /dev/null @@ -1,2278 +0,0 @@ -/* - * Copyright (c) 2017-2019 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/** - * \file api.c - * \brief Implementation of hICN control library API - */ - -#include "api_private.h" - -#include <assert.h> // assert -#include <stdbool.h> -#include <stdio.h> // snprintf -#include <string.h> // memmove, strcasecmp -#include <sys/socket.h> // socket -#include <unistd.h> // close, fcntl -#include <fcntl.h> // fcntl -#include <sys/types.h> // getpid -#include <unistd.h> // getpid -#ifdef __linux__ -#include <sys/syscall.h> -#define gettid() syscall(SYS_gettid) -#endif /* __linux__ */ -#include <strings.h> - -#define PORT 9695 - -#define BOOLSTR(x) ((x) ? "true" : "false") - -/* - * Internal state associated to a pending request - */ -typedef struct { - int seq; - hc_data_t * data; - /* Information used to process results */ - int size_in; - int (*parse)(const u8 * src, u8 * dst); -} hc_sock_request_t; - -/** - * Messages to the forwarder might be multiplexed thanks to the seqNum fields in - * the header_control_message structure. The forwarder simply answers back the - * original sequence number. We maintain a map of such sequence number to - * outgoing queries so that replied can be demultiplexed and treated - * appropriately. - */ -TYPEDEF_MAP_H(hc_sock_map, int, hc_sock_request_t *); -TYPEDEF_MAP(hc_sock_map, int, hc_sock_request_t *, int_cmp, int_snprintf, generic_snprintf); - -struct hc_sock_light_s { - /* This must be the first element of the struct */ - hc_sock_t vft; - - char * url; - int fd; - - /* Partial receive buffer */ - u8 buf[RECV_BUFLEN]; - size_t roff; /**< Read offset */ - size_t woff; /**< Write offset */ - - /* - * Because received messages are potentially unbounded in size, we might not - * guarantee that we can store a full packet before processing it. We must - * implement a very simple state machine remembering the current parsing - * status in order to partially process the packet. - */ - size_t remaining; - u32 send_id; - - /* Next sequence number to be used for requests */ - int seq; - - /* Request being parsed (NULL if none) */ - hc_sock_request_t * cur_request; - - bool async; - hc_sock_map_t * map; -}; - -typedef struct hc_sock_light_s hc_sock_light_t; - -#define TO_HC_SOCK_LIGHT(s) (hc_sock_light_t*)(s) - -hc_sock_request_t * -hc_sock_request_create(int seq, hc_data_t * data, HC_PARSE parse) -{ - assert(data); - - hc_sock_request_t * request = malloc(sizeof(hc_sock_request_t)); - if (!request) - return NULL; - request->seq = seq; - request->data = data; - request->parse = parse; - return request; -} - -void -hc_sock_light_request_free(hc_sock_request_t * request) -{ - free(request); -} - -/* - * list was working with all seq set to 0, but it seems hicnLightControl uses - * 1, and replies with the same seqno - */ -#define HICN_CTRL_SEND_SEQ_INIT 1 -#define HICN_CTRL_RECV_SEQ_INIT 1 - -#define MAX(x, y) ((x > y) ? x : y) - -/** - * In practise, we want to preserve enough room to store a full packet of - * average expected size (say a header + N payload elements). - */ -#define AVG_ELEMENTS (1 << DEFAULT_SIZE_LOG) -#define AVG_BUFLEN (sizeof(hc_msg_header_t) + AVG_ELEMENTS * sizeof(hc_msg_payload_t)) - -/* - * We should at least have buffer space allowing to store one processable unit - * of data, either the header of the maximum possible payload - */ -#define MIN_BUFLEN MAX(sizeof(hc_msg_header_t), sizeof(hc_msg_payload_t)) - -static const struct in6_addr loopback_addr = IN6ADDR_LOOPBACK_INIT; - -/****************************************************************************** - * Message helper types and aliases - ******************************************************************************/ - -#define foreach_hc_command \ - _(add_connection) \ - _(remove_connection) \ - _(list_connections) \ - _(add_listener) \ - _(remove_listener) \ - _(list_listeners) \ - _(add_route) \ - _(remove_route) \ - _(list_routes) \ - _(cache_store) \ - _(cache_serve) \ - /*_(cache_clear) */ \ - _(set_strategy) \ - _(set_wldr) \ - _(add_punting) \ - _(mapme_activator) \ - _(mapme_timing) - -typedef header_control_message hc_msg_header_t; - -typedef union { -#define _(x) x ## _command 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 - ******************************************************************************/ - -/** - * \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 -_hc_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 -_hc_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 -_hc_sock_light_free(hc_sock_t * socket) -{ - hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); - hc_sock_request_t ** request_array = NULL; - int n = hc_sock_map_get_value_array(s->map, &request_array); - if (n < 0) { - ERROR("Could not retrieve pending request array for freeing up resources"); - } else { - for (unsigned i = 0; i < n; i++) { - hc_sock_request_t * request = request_array[i]; - if (hc_sock_map_remove(s->map, request->seq, NULL) < 0) - ERROR("[hc_sock_light_process] Error removing request from map"); - hc_sock_light_request_free(request); - } - free(request_array); - } - - hc_sock_map_free(s->map); - if (s->url) - free(s->url); - close(s->fd); - free(s); -} - -static int -_hc_sock_light_get_next_seq(hc_sock_t * socket) -{ - hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); - return s->seq++; -} - -static int -_hc_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 -_hc_sock_light_get_fd(hc_sock_t * socket) -{ - hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); - return s->fd; -} - -static int -_hc_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 (_hc_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) //sizeof(struct sockaddr)) < 0) - goto ERR_CONNECT; - - return 0; - -ERR_CONNECT: -ERR_PARSE: - return -1; -} - -static int -_hc_sock_light_send(hc_sock_t * socket, hc_msg_t * msg, size_t msglen, int seq) -{ - hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); - int rc; - msg->hdr.seqNum = seq; - rc = (int)send(s->fd, msg, msglen, 0); - if (rc < 0) { - perror("hc_sock_light_send"); - return -1; - } - return 0; -} - -static int -_hc_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 -_hc_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 - */ - assert(RECV_BUFLEN - s->woff > MIN_BUFLEN); - - 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; - perror("hc_sock_light_recv"); - return -1; - } - s->woff += rc; - return rc; -} - -/* - * Returns -99 in case of internal error, -1 in case of API command failure - */ -static int -_hc_sock_light_process(hc_sock_t * socket, hc_data_t ** data) -{ - hc_sock_light_t *s = TO_HC_SOCK_LIGHT(socket); - int err = 0; - - /* We must have received at least one byte */ - size_t available = s->woff - s->roff; - - while(available > 0) { - - if (!s->cur_request) { // No message being parsed, alternatively (remaining == 0) - hc_msg_t * msg = (hc_msg_t*)(s->buf + s->roff); - - /* We expect a message header */ - if (available < sizeof(hc_msg_header_t)) { - break; - } - - hc_sock_request_t * request = NULL; - if (hc_sock_map_get(s->map, msg->hdr.seqNum, &request) < 0) { - ERROR("[hc_sock_light_process] Error searching for matching request"); - return -99; - } - if (!request) { - ERROR("[hc_sock_light_process] No request matching received sequence number"); - return -99; - } - - s->remaining = msg->hdr.length; - switch(msg->hdr.messageType) { - case ACK_LIGHT: - assert(s->remaining == 1); - assert(!data); - s->cur_request = request; - break; - case NACK_LIGHT: - assert(s->remaining == 1); - assert(!data); - hc_data_set_error(request->data); - s->cur_request = request; - err = -1; - break; - case RESPONSE_LIGHT: - assert(data); - if (s->remaining == 0) { - hc_data_set_complete(request->data); - *data = request->data; - if (hc_sock_map_remove(s->map, request->seq, NULL) < 0) - ERROR("[hc_sock_light_process] Error removing request from map"); - hc_sock_light_request_free(request); - } else { - /* We only remember it if there is still data to parse */ - s->cur_request = request; - } - break; - default: - ERROR("[hc_sock_light_process] Invalid response received"); - return -99; - } - - available -= sizeof(hc_msg_header_t); - s->roff += sizeof(hc_msg_header_t); - } else { - /* We expect the complete payload, or at least a chunk of it */ - size_t num_chunks = available / s->cur_request->data->in_element_size; - if (num_chunks == 0) - break; - if (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(s->cur_request->data, s->buf + s->roff, num_chunks); - } else { - int rc; - rc = hc_data_ensure_available(s->cur_request->data, num_chunks); - if (rc < 0) { - ERROR("[hc_sock_light_process] Error in hc_data_ensure_available"); - return -99; - } - for (int i = 0; i < num_chunks; i++) { - u8 * dst = hc_data_get_next(s->cur_request->data); - if (!dst) { - ERROR("[hc_sock_light_process] Error in hc_data_get_next"); - return -99; - } - - rc = s->cur_request->parse(s->buf + s->roff + i * s->cur_request->data->in_element_size, dst); - if (rc < 0) { - ERROR("[hc_sock_light_process] Error in parse"); - err = -99; /* FIXME we let the loop complete (?) */ - } - s->cur_request->data->size++; - } - } - - s->remaining -= num_chunks; - available -= num_chunks * s->cur_request->data->in_element_size; - s->roff += num_chunks * s->cur_request->data->in_element_size; - if (s->remaining == 0) { - if (hc_sock_map_remove(s->map, s->cur_request->seq, NULL) < 0) { - ERROR("[hc_sock_light_process] Error removing request from map"); - return -99; - } - hc_data_set_complete(s->cur_request->data); - if (data) - *data = s->cur_request->data; - hc_sock_light_request_free(s->cur_request); - s->cur_request = NULL; - } - - } - } - - /* Make sure there is enough remaining space in the buffer */ - if (RECV_BUFLEN - s->woff < AVG_BUFLEN) { - /* - * There should be no overlap provided a sufficiently large BUFLEN, but - * who knows. - */ - memmove(s->buf, s->buf + s->roff, s->woff - s->roff); - s->woff -= s->roff; - s->roff = 0; - } - - return err; -} - -static int -_hc_sock_light_callback(hc_sock_t * socket, hc_data_t ** pdata) -{ - hc_data_t * data; - - for (;;) { - int n = _hc_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; - default: - perror("hc_sock_light_recv"); - goto ERR; - } - } - if (_hc_sock_light_process(socket, &data) < 0) { - goto ERR; - } - } -END: - if (pdata) - *pdata = data; - else - hc_data_free(data); - return 0; - -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_id cmd_id; - size_t size_in; - size_t size_out; - HC_PARSE parse; -} hc_command_params_t; - -static int -_hc_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_LIST: - assert(params->size_in != 0); - assert(params->size_out != 0); - assert(params->parse != NULL); - break; - case ACTION_SET: - 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("[_hc_execute_command] Could not create data storage"); - goto ERR_DATA; - } - - int seq = _hc_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("[_hc_execute_command] Could not create request state"); - goto ERR_REQUEST; - } - - /* Add state to map */ - if (hc_sock_map_add(s->map, seq, request) < 0) { - ERROR("[_hc_execute_command] Error adding request state to map"); - goto ERR_MAP; - } - - if (_hc_sock_light_send(socket, msg, msg_len, seq) < 0) { - ERROR("[_hc_execute_command] Error sending message"); - goto ERR_PROCESS; - } - - if (async) - return 0; - - while(!data->complete) { - /* - * As the socket is non blocking it might happen that we need to read - * several times before success... shall we alternate between blocking - * and non-blocking mode ? - */ - int n = _hc_sock_light_recv(socket); - if (n == 0) - goto ERR_EOF; - if (n < 0) - continue; //break; - int rc = _hc_sock_light_process(socket, pdata); - switch(rc) { - case 0: - break; - case -1: - ret = rc; - break; - case -99: - ERROR("[_hc_execute_command] Error processing socket results"); - goto ERR; - break; - default: - ERROR("[_hc_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 int -_hc_listener_create_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("[_hc_listener_create] Unexpected truncation of listener string"); - DEBUG("[_hc_listener_create] listener=%s async=%s", listener_s, - BOOLSTR(async)); - - if (!IS_VALID_FAMILY(listener->family)) - return -1; - - if (!IS_VALID_CONNECTION_TYPE(listener->type)) - return -1; - - struct { - header_control_message hdr; - add_listener_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = ADD_LISTENER, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = listener->local_addr, - .port = htons(listener->local_port), - .addressType = (u8)map_to_addr_type[listener->family], - .listenerMode = (u8)map_to_listener_mode[listener->type], - .connectionType = (u8)map_to_connection_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.interfaceName, 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 = ADD_LISTENER, - .size_in = sizeof(add_listener_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_listener_create(hc_sock_t * s, hc_listener_t * listener) -{ - return _hc_listener_create_internal(s, listener, false); -} - -static int -_hc_listener_create_async(hc_sock_t * s, hc_listener_t * listener) -{ - return _hc_listener_create_internal(s, listener, true); -} - -/* LISTENER LIST */ - -static int -_hc_listener_list_internal(hc_sock_t * socket, hc_data_t ** pdata, bool async) -{ - DEBUG("[hc_listener_list] async=%s", BOOLSTR(async)); - - struct { - header_control_message hdr; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = LIST_LISTENERS, - .length = 0, - .seqNum = 0, - }, - }; - - hc_command_params_t params = { - .cmd = ACTION_LIST, - .cmd_id = LIST_LISTENERS, - .size_in = sizeof(list_listeners_command), - .size_out = sizeof(hc_listener_t), - .parse = (HC_PARSE)hc_listener_parse, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, pdata, async); -} - -static int -_hc_listener_list(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_listener_list_internal(s, pdata, false); -} - -static int -_hc_listener_list_async(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_listener_list_internal(s, pdata, true); -} - -/* LISTENER GET */ - -static int -_hc_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 (_hc_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 -_hc_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("[_hc_listener_delete] Unexpected truncation of listener string"); - DEBUG("[_hc_listener_delete] listener=%s async=%s", listener_s, - BOOLSTR(async)); - - struct { - header_control_message hdr; - remove_listener_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = REMOVE_LISTENER, - .length = 1, - .seqNum = 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 (_hc_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 = REMOVE_LISTENER, - .size_in = sizeof(remove_listener_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_listener_delete(hc_sock_t * s, hc_listener_t * listener) -{ - return _hc_listener_delete_internal(s, listener, false); -} - -static int -_hc_listener_delete_async(hc_sock_t * s, hc_listener_t * listener) -{ - return _hc_listener_delete_internal(s, listener, true); -} - -/*----------------------------------------------------------------------------* - * CONNECTION - *----------------------------------------------------------------------------*/ - -/* CONNECTION CREATE */ - -static int -_hc_connection_create_internal(hc_sock_t * socket, hc_connection_t * connection, bool async) -{ - 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_create] Unexpected truncation of connection string"); - DEBUG("[_hc_connection_create] connection=%s async=%s", connection_s, BOOLSTR(async)); - - if (hc_connection_validate(connection) < 0) - return -1; - - struct { - header_control_message hdr; - add_connection_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = ADD_CONNECTION, - .length = 1, - .seqNum = 0, - }, - .payload = { - .remoteIp = connection->remote_addr, - .localIp = connection->local_addr, - .remotePort = htons(connection->remote_port), - .localPort = htons(connection->local_port), - .ipType = (u8)map_to_addr_type[connection->family], - .connectionType = (u8)map_to_connection_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.interfaceName, INTERFACE_NAME_LEN, "%s", connection->interface_name); - - hc_command_params_t params = { - .cmd = ACTION_CREATE, - .cmd_id = ADD_CONNECTION, - .size_in = sizeof(add_connection_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_connection_create(hc_sock_t * s, hc_connection_t * connection) -{ - return _hc_connection_create_internal(s, connection, false); -} - -static int -_hc_connection_create_async(hc_sock_t * s, hc_connection_t * connection) -{ - return _hc_connection_create_internal(s, connection, true); -} - -/* CONNECTION LIST */ - -static int -_hc_connection_list_internal(hc_sock_t * socket, hc_data_t ** pdata, bool async) -{ - DEBUG("[hc_connection_list] async=%s", BOOLSTR(async)); - - struct { - header_control_message hdr; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = LIST_CONNECTIONS, - .length = 0, - .seqNum = 0, - }, - }; - - hc_command_params_t params = { - .cmd = ACTION_LIST, - .cmd_id = LIST_CONNECTIONS, - .size_in = sizeof(list_connections_command), - .size_out = sizeof(hc_connection_t), - .parse = (HC_PARSE)hc_connection_parse, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, pdata, async); -} - -static int -_hc_connection_list(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_connection_list_internal(s, pdata, false); -} - -static int -_hc_connection_list_async(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_connection_list_internal(s, pdata, true); -} - -/* CONNECTION GET */ - -static int -_hc_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 (_hc_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 int -_hc_connection_delete_internal(hc_sock_t * socket, hc_connection_t * connection, bool async) -{ - 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_delete] Unexpected truncation of connection string"); - DEBUG("[_hc_connection_delete] connection=%s async=%s", connection_s, BOOLSTR(async)); - - struct { - header_control_message hdr; - remove_connection_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = REMOVE_CONNECTION, - .length = 1, - .seqNum = 0, - }, - }; - - if (connection->id) { - rc = snprintf(msg.payload.symbolicOrConnid, 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.symbolicOrConnid, 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 -1; - if (!connection_found) - return -1; - rc = snprintf(msg.payload.symbolicOrConnid, 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 = REMOVE_CONNECTION, - .size_in = sizeof(remove_connection_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_connection_delete(hc_sock_t * s, hc_connection_t * connection) -{ - return _hc_connection_delete_internal(s, connection, false); -} - -static int -_hc_connection_delete_async(hc_sock_t * s, hc_connection_t * connection) -{ - return _hc_connection_delete_internal(s, connection, true); -} - -static int -_hc_connection_update_by_id(hc_sock_t *s, int hc_connection_id, - hc_connection_t *connection) -{ - // Not implemented - return -1; -} - -static int -_hc_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 -_hc_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 { - header_control_message hdr; - connection_set_admin_state_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = CONNECTION_SET_ADMIN_STATE, - .length = 1, - .seqNum = 0, - }, - .payload = { - .admin_state = state, - }, - }; - rc = snprintf(msg.payload.symbolicOrConnid, 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 = CONNECTION_SET_ADMIN_STATE, - .size_in = sizeof(connection_set_admin_state_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_connection_set_admin_state(hc_sock_t * s, const char * conn_id_or_name, - face_state_t state) -{ - return _hc_connection_set_admin_state_internal(s, conn_id_or_name, state, false); -} - -static int -_hc_connection_set_admin_state_async(hc_sock_t * s, const char * conn_id_or_name, - face_state_t state) -{ - return _hc_connection_set_admin_state_internal(s, conn_id_or_name, state, true); -} - -#ifdef WITH_POLICY - -static int -_hc_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 { - header_control_message hdr; - connection_set_priority_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = CONNECTION_SET_PRIORITY, - .length = 1, - .seqNum = 0, - }, - .payload = { - .priority = priority, - }, - }; - rc = snprintf(msg.payload.symbolicOrConnid, 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 = CONNECTION_SET_PRIORITY, - .size_in = sizeof(connection_set_priority_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_connection_set_priority(hc_sock_t * s, const char * conn_id_or_name, - uint32_t priority) -{ - return _hc_connection_set_priority_internal(s, conn_id_or_name, priority, false); -} - -static int -_hc_connection_set_priority_async(hc_sock_t * s, const char * conn_id_or_name, - uint32_t priority) -{ - return _hc_connection_set_priority_internal(s, conn_id_or_name, priority, true); -} - -#endif // WITH_POLICY - -static int -_hc_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 { - header_control_message hdr; - connection_set_tags_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = CONNECTION_SET_TAGS, - .length = 1, - .seqNum = 0, - }, - .payload = { - .tags = tags, - }, - }; - rc = snprintf(msg.payload.symbolicOrConnid, 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 = CONNECTION_SET_TAGS, - .size_in = sizeof(connection_set_tags_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(s, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_connection_set_tags(hc_sock_t * s, const char * conn_id_or_name, - policy_tags_t tags) -{ - return _hc_connection_set_tags_internal(s, conn_id_or_name, tags, false); -} - -static int -_hc_connection_set_tags_async(hc_sock_t * s, const char * conn_id_or_name, - policy_tags_t tags) -{ - return _hc_connection_set_tags_internal(s, conn_id_or_name, tags, true); -} - -/*----------------------------------------------------------------------------* - * Routes - *----------------------------------------------------------------------------*/ - -/* ROUTE CREATE */ - -static int -_hc_route_create_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_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 (!IS_VALID_FAMILY(route->family)) - return -1; - - struct { - header_control_message hdr; - add_route_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = ADD_ROUTE, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = route->remote_addr, - .cost = route->cost, - .addressType = (u8)map_to_addr_type[route->family], - .len = route->len, - } - }; - - /* - * The route commands expects the ID (or name that we don't use) as part of - * the symbolicOrConnid attribute. - */ - rc = snprintf(msg.payload.symbolicOrConnid, 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 = ADD_ROUTE, - .size_in = sizeof(add_route_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_route_create(hc_sock_t * s, hc_route_t * route) -{ - return _hc_route_create_internal(s, route, false); -} - -static int -_hc_route_create_async(hc_sock_t * s, hc_route_t * route) -{ - return _hc_route_create_internal(s, route, true); -} - -/* ROUTE DELETE */ - -static int -_hc_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 { - header_control_message hdr; - remove_route_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = REMOVE_ROUTE, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = route->remote_addr, - .addressType = (u8)map_to_addr_type[route->family], - .len = route->len, - } - }; - - /* - * The route commands expects the ID (or name that we don't use) as part of - * the symbolicOrConnid attribute. - */ - snprintf(msg.payload.symbolicOrConnid, SYMBOLIC_NAME_LEN, "%d", route->face_id); - - hc_command_params_t params = { - .cmd = ACTION_DELETE, - .cmd_id = REMOVE_ROUTE, - .size_in = sizeof(remove_route_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_route_delete(hc_sock_t * s, hc_route_t * route) -{ - return _hc_route_delete_internal(s, route, false); -} - -static int -_hc_route_delete_async(hc_sock_t * s, hc_route_t * route) -{ - return _hc_route_delete_internal(s, route, true); -} - -/* ROUTE LIST */ - -static int -_hc_route_list_internal(hc_sock_t * socket, hc_data_t ** pdata, bool async) -{ - //DEBUG("[hc_route_list] async=%s", BOOLSTR(async)); - - struct { - header_control_message hdr; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = LIST_ROUTES, - .length = 0, - .seqNum = 0, - }, - }; - - hc_command_params_t params = { - .cmd = ACTION_LIST, - .cmd_id = LIST_ROUTES, - .size_in = sizeof(list_routes_command), - .size_out = sizeof(hc_route_t), - .parse = (HC_PARSE)hc_route_parse, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, pdata, async); -} - -static int -_hc_route_list(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_route_list_internal(s, pdata, false); -} - -static int -_hc_route_list_async(hc_sock_t * s) -{ - return _hc_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 -_hc_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, true) < 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 (_hc_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 (_hc_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 (_hc_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; - } - return -1; - break; - default: - ERROR("[hc_face_create] Unknwon face type."); - - return -1; - }; - - return 0; -} - -static int -_hc_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 (_hc_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 (_hc_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 -_hc_face_delete(hc_sock_t * socket, hc_face_t * face) -{ - 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 (_hc_connection_delete(socket, &connection) < 0) { - ERROR("[hc_face_delete] Error removing connection"); - return -1; - } - - /* 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 (_hc_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 (_hc_listener_delete(socket, &listener) < 0) { - ERROR("[hc_face_delete] Error removing listener"); - return -1; - } - } - - hc_data_free(connections); - - return 0; - - -} - -/* FACE LIST */ - -static int -_hc_face_list(hc_sock_t * socket, hc_data_t ** pdata) -{ - hc_data_t * connection_data; - hc_face_t face; - - //DEBUG("[hc_face_list]"); - - if (_hc_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); - return 0; - -ERR: - hc_data_free(connection_data); - return -1; -} - -static int -_hc_face_list_async(hc_sock_t * socket) -{ - struct { - header_control_message hdr; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = LIST_CONNECTIONS, - .length = 0, - .seqNum = 0, - }, - }; - - hc_command_params_t params = { - .cmd = ACTION_LIST, - .cmd_id = LIST_CONNECTIONS, - .size_in = sizeof(list_connections_command), - .size_out = sizeof(hc_face_t), - .parse = (HC_PARSE)hc_connection_parse_to_face, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, true); -} - -static int -_hc_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 -_hc_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 -_hc_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 -_hc_punting_create_internal(hc_sock_t * socket, hc_punting_t * punting, bool async) -{ - int rc; - - if (hc_punting_validate(punting) < 0) - return -1; - - struct { - header_control_message hdr; - add_punting_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = ADD_PUNTING, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = punting->prefix, - .addressType = (u8)map_to_addr_type[punting->family], - .len = punting->prefix_len, - } - }; - rc = snprintf(msg.payload.symbolicOrConnid, 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 = ADD_PUNTING, - .size_in = sizeof(add_punting_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_punting_create(hc_sock_t * s, hc_punting_t * punting) -{ - return _hc_punting_create_internal(s, punting, false); -} - -static int -_hc_punting_create_async(hc_sock_t * s, hc_punting_t * punting) -{ - return _hc_punting_create_internal(s, punting, true); -} - -static int -_hc_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 -_hc_punting_delete(hc_sock_t * s, hc_punting_t * punting) -{ - ERROR("hc_punting_delete not (yet) implemented."); - return -1; -} - -static int -_hc_punting_list(hc_sock_t * s, hc_data_t ** pdata) -{ - ERROR("hc_punting_list not (yet) implemented."); - return -1; -} - - -/*----------------------------------------------------------------------------* - * Cache - *----------------------------------------------------------------------------*/ - -static int -_hc_cache_set_store_internal(hc_sock_t * socket, int enabled, bool async) -{ - struct { - header_control_message hdr; - cache_store_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = CACHE_STORE, - .length = 1, - .seqNum = 0, - }, - .payload = { - .activate = enabled, - } - }; - - hc_command_params_t params = { - .cmd = ACTION_SET, - .cmd_id = CACHE_STORE, - .size_in = sizeof(cache_store_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_cache_set_store(hc_sock_t * s, int enabled) -{ - return _hc_cache_set_store_internal(s, enabled, false); -} - -static int -_hc_cache_set_store_async(hc_sock_t * s, int enabled) -{ - return _hc_cache_set_store_internal(s, enabled, true); -} - -static int -_hc_cache_set_serve_internal(hc_sock_t * socket, int enabled, bool async) -{ - struct { - header_control_message hdr; - cache_serve_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = CACHE_SERVE, - .length = 1, - .seqNum = 0, - }, - .payload = { - .activate = enabled, - } - }; - - hc_command_params_t params = { - .cmd = ACTION_SET, - .cmd_id = CACHE_SERVE, - .size_in = sizeof(cache_serve_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_cache_set_serve(hc_sock_t * s, int enabled) -{ - return _hc_cache_set_serve_internal(s, enabled, false); -} - -static int -_hc_cache_set_serve_async(hc_sock_t * s, int enabled) -{ - return _hc_cache_set_serve_internal(s, enabled, true); -} - -/*----------------------------------------------------------------------------* - * Strategy - *----------------------------------------------------------------------------*/ - -// per prefix -static int -_hc_strategy_set(hc_sock_t * s /* XXX */) -{ - return 0; -} - -/* How to retrieve that from the forwarder ? */ -static const char * strategies[] = { - "random", - "load_balancer", -}; - -#define ARRAY_SIZE(array) (sizeof(array) / sizeof(*array)) - -static int -_hc_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_HC_STRATEGY, "%s", strategies[i]); - if (rc >= MAXSZ_HC_STRATEGY) - WARN("[hc_strategy_list] Unexpected truncation of strategy name string"); - (*data)->size++; - } - - return 0; -} - -/*----------------------------------------------------------------------------* - * WLDR - *----------------------------------------------------------------------------*/ - -// per connection -static int -_hc_wldr_set(hc_sock_t * s /* XXX */) -{ - return 0; -} - -/*----------------------------------------------------------------------------* - * MAP-Me - *----------------------------------------------------------------------------*/ - -static int -_hc_mapme_set(hc_sock_t * s, int enabled) -{ - return 0; -} - -static int -_hc_mapme_set_discovery(hc_sock_t * s, int enabled) -{ - return 0; -} - -static int -_hc_mapme_set_timescale(hc_sock_t * s, double timescale) -{ - return 0; -} - -static int -_hc_mapme_set_retx(hc_sock_t * s, double timescale) -{ - return 0; -} - -/*----------------------------------------------------------------------------* - * Policy - *----------------------------------------------------------------------------*/ - -#ifdef WITH_POLICY - -/* POLICY CREATE */ - -static int -_hc_policy_create_internal(hc_sock_t * socket, hc_policy_t * policy, bool async) -{ - if (!IS_VALID_FAMILY(policy->family)) - return -1; - - struct { - header_control_message hdr; - add_policy_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = ADD_POLICY, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = policy->remote_addr, - .addressType = (u8)map_to_addr_type[policy->family], - .len = policy->len, - .policy = policy->policy, - } - }; - - hc_command_params_t params = { - .cmd = ACTION_CREATE, - .cmd_id = ADD_POLICY, - .size_in = sizeof(add_policy_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_policy_create(hc_sock_t * s, hc_policy_t * policy) -{ - return _hc_policy_create_internal(s, policy, false); -} - -static int -_hc_policy_create_async(hc_sock_t * s, hc_policy_t * policy) -{ - return _hc_policy_create_internal(s, policy, true); -} - -/* POLICY DELETE */ - -static int -_hc_policy_delete_internal(hc_sock_t * socket, hc_policy_t * policy, bool async) -{ - if (!IS_VALID_FAMILY(policy->family)) - return -1; - - struct { - header_control_message hdr; - remove_policy_command payload; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = REMOVE_POLICY, - .length = 1, - .seqNum = 0, - }, - .payload = { - .address = policy->remote_addr, - .addressType = (u8)map_to_addr_type[policy->family], - .len = policy->len, - } - }; - - hc_command_params_t params = { - .cmd = ACTION_DELETE, - .cmd_id = REMOVE_POLICY, - .size_in = sizeof(remove_policy_command), - .size_out = 0, - .parse = NULL, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, NULL, async); -} - -static int -_hc_policy_delete(hc_sock_t * s, hc_policy_t * policy) -{ - return _hc_policy_delete_internal(s, policy, false); -} - -static int -_hc_policy_delete_async(hc_sock_t * s, hc_policy_t * policy) -{ - return _hc_policy_delete_internal(s, policy, true); -} - -/* POLICY LIST */ - -static int -_hc_policy_list_internal(hc_sock_t * socket, hc_data_t ** pdata, bool async) -{ - struct { - header_control_message hdr; - } msg = { - .hdr = { - .messageType = REQUEST_LIGHT, - .commandID = LIST_POLICIES, - .length = 0, - .seqNum = 0, - }, - }; - - hc_command_params_t params = { - .cmd = ACTION_LIST, - .cmd_id = LIST_POLICIES, - .size_in = sizeof(list_policies_command), - .size_out = sizeof(hc_policy_t), - .parse = (HC_PARSE)hc_policy_parse, - }; - - return _hc_execute_command(socket, (hc_msg_t*)&msg, sizeof(msg), ¶ms, pdata, async); -} - -static int -_hc_policy_list(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_policy_list_internal(s, pdata, false); -} - -static int -_hc_policy_list_async(hc_sock_t * s, hc_data_t ** pdata) -{ - return _hc_policy_list_internal(s, pdata, true); -} - -#endif /* WITH_POLICY */ - -static hc_sock_t hc_sock_light_interface = (hc_sock_t) { - .hc_sock_get_next_seq = _hc_sock_light_get_next_seq, - .hc_sock_set_nonblocking = _hc_sock_light_set_nonblocking, - .hc_sock_get_fd = _hc_sock_light_get_fd, - .hc_sock_connect = _hc_sock_light_connect, - .hc_sock_get_available = _hc_sock_light_get_available, - .hc_sock_send = _hc_sock_light_send, - .hc_sock_recv = _hc_sock_light_recv, - .hc_sock_process = _hc_sock_light_process, - .hc_sock_callback = _hc_sock_light_callback, - .hc_sock_reset = _hc_sock_light_reset, - .hc_sock_free = _hc_sock_light_free, - .hc_listener_create = _hc_listener_create, - .hc_listener_create_async = _hc_listener_create_async, - .hc_listener_get = _hc_listener_get, - .hc_listener_delete = _hc_listener_delete, - .hc_listener_delete_async = _hc_listener_delete_async, - .hc_listener_list = _hc_listener_list, - .hc_listener_list_async = _hc_listener_list_async, - .hc_connection_create = _hc_connection_create, - .hc_connection_create_async = _hc_connection_create_async, - .hc_connection_get = _hc_connection_get, - .hc_connection_update_by_id = _hc_connection_update_by_id, - .hc_connection_update = _hc_connection_update, - .hc_connection_delete = _hc_connection_delete, - .hc_connection_delete_async = _hc_connection_delete_async, - .hc_connection_list = _hc_connection_list, - .hc_connection_list_async = _hc_connection_list_async, - .hc_connection_set_admin_state = _hc_connection_set_admin_state, - .hc_connection_set_admin_state_async = _hc_connection_set_admin_state_async, - -#ifdef WITH_POLICY - .hc_connection_set_priority = _hc_connection_set_priority, - .hc_connection_set_priority_async = _hc_connection_set_priority_async, - .hc_connection_set_tags = _hc_connection_set_tags, - .hc_connection_set_tags_async = _hc_connection_set_tags_async, -#endif // WITH_POLICY - - .hc_face_create = _hc_face_create, - .hc_face_get = _hc_face_get, - .hc_face_delete = _hc_face_delete, - .hc_face_list = _hc_face_list, - .hc_face_list_async = _hc_face_list_async, - .hc_face_set_admin_state = _hc_face_set_admin_state, - -#ifdef WITH_POLICY - .hc_face_set_priority = _hc_face_set_priority, - .hc_face_set_tags = _hc_face_set_tags, -#endif // WITH_POLICY - - .hc_route_create = _hc_route_create, - .hc_route_create_async = _hc_route_create_async, - .hc_route_delete = _hc_route_delete, - .hc_route_delete_async = _hc_route_delete_async, - .hc_route_list = _hc_route_list, - .hc_route_list_async = _hc_route_list_async, - - .hc_punting_create = _hc_punting_create, - .hc_punting_create_async = _hc_punting_create_async, - .hc_punting_get = _hc_punting_get, - .hc_punting_delete = _hc_punting_delete, - .hc_punting_list = _hc_punting_list, - - .hc_cache_set_store = _hc_cache_set_store, - .hc_cache_set_store_async = _hc_cache_set_store_async, - .hc_cache_set_serve = _hc_cache_set_serve, - .hc_cache_set_serve_async = _hc_cache_set_serve_async, - - .hc_strategy_list = _hc_strategy_list, - .hc_strategy_set = _hc_strategy_set, - .hc_wldr_set = _hc_wldr_set, - - .hc_mapme_set = _hc_mapme_set, - .hc_mapme_set_discovery = _hc_mapme_set_discovery, - .hc_mapme_set_timescale = _hc_mapme_set_timescale, - .hc_mapme_set_retx = _hc_mapme_set_retx, - -#ifdef WITH_POLICY - .hc_policy_create = _hc_policy_create, - .hc_policy_create_async = _hc_policy_create_async, - .hc_policy_delete = _hc_policy_delete, - .hc_policy_delete_async = _hc_policy_delete_async, - .hc_policy_list = _hc_policy_list, - .hc_policy_list_async = _hc_policy_list_async -#endif // WITH_POLICY -}; - -// 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_interface; - s->url = url ? strdup(url) : NULL; - - s->fd = socket(AF_INET, SOCK_STREAM, 0); - if (s->fd < 0) - goto ERR_SOCKET; - - if (_hc_sock_light_reset((hc_sock_t*)s) < 0) - goto ERR_RESET; - - s->seq = 0; - s->cur_request = NULL; - - s->map = hc_sock_map_create(); - 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; -} - -hc_sock_t * -_hc_sock_create(void) -{ - return _hc_sock_create_url(NULL); -} |