diff options
Diffstat (limited to 'librabbitmq/amqp_socket.c')
| -rw-r--r-- | librabbitmq/amqp_socket.c | 497 |
1 files changed, 0 insertions, 497 deletions
diff --git a/librabbitmq/amqp_socket.c b/librabbitmq/amqp_socket.c deleted file mode 100644 index f23b42b..0000000 --- a/librabbitmq/amqp_socket.c +++ /dev/null @@ -1,497 +0,0 @@ -/* - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (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.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and - * limitations under the License. - * - * The Original Code is librabbitmq. - * - * The Initial Developers of the Original Code are LShift Ltd, Cohesive - * Financial Technologies LLC, and Rabbit Technologies Ltd. Portions - * created before 22-Nov-2008 00:00:00 GMT by LShift Ltd, Cohesive - * Financial Technologies LLC, or Rabbit Technologies Ltd are Copyright - * (C) 2007-2008 LShift Ltd, Cohesive Financial Technologies LLC, and - * Rabbit Technologies Ltd. - * - * Portions created by LShift Ltd are Copyright (C) 2007-2009 LShift - * Ltd. Portions created by Cohesive Financial Technologies LLC are - * Copyright (C) 2007-2009 Cohesive Financial Technologies - * LLC. Portions created by Rabbit Technologies Ltd are Copyright (C) - * 2007-2009 Rabbit Technologies Ltd. - * - * Portions created by Tony Garnock-Jones are Copyright (C) 2009-2010 - * LShift Ltd and Tony Garnock-Jones. - * - * All Rights Reserved. - * - * Contributor(s): ______________________________________. - * - * Alternatively, the contents of this file may be used under the terms - * of the GNU General Public License Version 2 or later (the "GPL"), in - * which case the provisions of the GPL are applicable instead of those - * above. If you wish to allow use of your version of this file only - * under the terms of the GPL, and not to allow others to use your - * version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the - * notice and other provisions required by the GPL. If you do not - * delete the provisions above, a recipient may use your version of - * this file under the terms of any one of the MPL or the GPL. - * - * ***** END LICENSE BLOCK ***** - */ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <stdint.h> -#include <stdarg.h> -#include <assert.h> - -#include "amqp.h" -#include "amqp_framing.h" -#include "amqp_private.h" - - -int amqp_open_socket(char const *hostname, - int portnumber) -{ - int sockfd, res; - struct sockaddr_in addr; - struct hostent *he; - int one = 1; /* used as a buffer by setsockopt below */ - - res = amqp_socket_init(); - if (res) - return res; - - he = gethostbyname(hostname); - if (he == NULL) - return -ERROR_GETHOSTBYNAME_FAILED; - - addr.sin_family = AF_INET; - addr.sin_port = htons(portnumber); - addr.sin_addr.s_addr = * (uint32_t *) he->h_addr_list[0]; - - sockfd = socket(PF_INET, SOCK_STREAM, 0); - if (sockfd == -1) - return -amqp_socket_error(); - - if (amqp_socket_setsockopt(sockfd, IPPROTO_TCP, TCP_NODELAY, &one, - sizeof(one)) < 0 - || connect(sockfd, (struct sockaddr *) &addr, sizeof(addr)) < 0) - { - res = -amqp_socket_error(); - amqp_socket_close(sockfd); - return res; - } - - return sockfd; -} - -int amqp_send_header(amqp_connection_state_t state) { - static const uint8_t header[8] = { 'A', 'M', 'Q', 'P', 0, - AMQP_PROTOCOL_VERSION_MAJOR, - AMQP_PROTOCOL_VERSION_MINOR, - AMQP_PROTOCOL_VERSION_REVISION }; - return send(state->sockfd, (void *)header, 8, 0); -} - -static amqp_bytes_t sasl_method_name(amqp_sasl_method_enum method) { - amqp_bytes_t res; - - switch (method) { - case AMQP_SASL_METHOD_PLAIN: - res.bytes = "PLAIN"; - res.len = 5; - break; - - default: - amqp_abort("Invalid SASL method: %d", (int) method); - } - - return res; -} - -static amqp_bytes_t sasl_response(amqp_pool_t *pool, - amqp_sasl_method_enum method, - va_list args) -{ - amqp_bytes_t response; - - switch (method) { - case AMQP_SASL_METHOD_PLAIN: { - char *username = va_arg(args, char *); - size_t username_len = strlen(username); - char *password = va_arg(args, char *); - size_t password_len = strlen(password); - char *response_buf; - - amqp_pool_alloc_bytes(pool, strlen(username) + strlen(password) + 2, &response); - if (response.bytes == NULL) - /* We never request a zero-length block, because of the +2 - above, so a NULL here really is ENOMEM. */ - return response; - - response_buf = response.bytes; - response_buf[0] = 0; - memcpy(response_buf + 1, username, username_len); - response_buf[username_len + 1] = 0; - memcpy(response_buf + username_len + 2, password, password_len); - break; - } - default: - amqp_abort("Invalid SASL method: %d", (int) method); - } - - return response; -} - -amqp_boolean_t amqp_frames_enqueued(amqp_connection_state_t state) { - return (state->first_queued_frame != NULL); -} - -/* - * Check to see if we have data in our buffer. If this returns 1, we - * will avoid an immediate blocking read in amqp_simple_wait_frame. - */ -amqp_boolean_t amqp_data_in_buffer(amqp_connection_state_t state) { - return (state->sock_inbound_offset < state->sock_inbound_limit); -} - -static int wait_frame_inner(amqp_connection_state_t state, - amqp_frame_t *decoded_frame) -{ - while (1) { - int res; - - while (amqp_data_in_buffer(state)) { - amqp_bytes_t buffer; - buffer.len = state->sock_inbound_limit - state->sock_inbound_offset; - buffer.bytes = ((char *) state->sock_inbound_buffer.bytes) + state->sock_inbound_offset; - - res = amqp_handle_input(state, buffer, decoded_frame); - if (res < 0) - return res; - - state->sock_inbound_offset += res; - - if (decoded_frame->frame_type != 0) - /* Complete frame was read. Return it. */ - return 0; - - /* Incomplete or ignored frame. Keep processing input. */ - assert(res != 0); - } - - res = recv(state->sockfd, state->sock_inbound_buffer.bytes, - state->sock_inbound_buffer.len, 0); - if (res <= 0) { - if (res == 0) - return -ERROR_CONNECTION_CLOSED; - else - return -amqp_socket_error(); - } - - state->sock_inbound_limit = res; - state->sock_inbound_offset = 0; - } -} - -int amqp_simple_wait_frame(amqp_connection_state_t state, - amqp_frame_t *decoded_frame) -{ - if (state->first_queued_frame != NULL) { - amqp_frame_t *f = (amqp_frame_t *) state->first_queued_frame->data; - state->first_queued_frame = state->first_queued_frame->next; - if (state->first_queued_frame == NULL) { - state->last_queued_frame = NULL; - } - *decoded_frame = *f; - return 0; - } else { - return wait_frame_inner(state, decoded_frame); - } -} - -int amqp_simple_wait_method(amqp_connection_state_t state, - amqp_channel_t expected_channel, - amqp_method_number_t expected_method, - amqp_method_t *output) -{ - amqp_frame_t frame; - int res = amqp_simple_wait_frame(state, &frame); - if (res < 0) - return res; - - if (frame.channel != expected_channel) - amqp_abort("Expected 0x%08X method frame on channel %d, got frame on channel %d", - expected_method, - expected_channel, - frame.channel); - if (frame.frame_type != AMQP_FRAME_METHOD) - amqp_abort("Expected 0x%08X method frame on channel %d, got frame type %d", - expected_method, - expected_channel, - frame.frame_type); - if (frame.payload.method.id != expected_method) - amqp_abort("Expected method ID 0x%08X on channel %d, got ID 0x%08X", - expected_method, - expected_channel, - frame.payload.method.id); - *output = frame.payload.method; - return 0; -} - -int amqp_send_method(amqp_connection_state_t state, - amqp_channel_t channel, - amqp_method_number_t id, - void *decoded) -{ - amqp_frame_t frame; - - frame.frame_type = AMQP_FRAME_METHOD; - frame.channel = channel; - frame.payload.method.id = id; - frame.payload.method.decoded = decoded; - return amqp_send_frame(state, &frame); -} - -static int amqp_id_in_reply_list( amqp_method_number_t expected, amqp_method_number_t *list ) -{ - while ( *list != 0 ) { - if ( *list == expected ) return 1; - list++; - } - return 0; -} - -amqp_rpc_reply_t amqp_simple_rpc(amqp_connection_state_t state, - amqp_channel_t channel, - amqp_method_number_t request_id, - amqp_method_number_t *expected_reply_ids, - void *decoded_request_method) -{ - int status; - amqp_rpc_reply_t result; - - memset(&result, 0, sizeof(result)); - - status = amqp_send_method(state, channel, request_id, decoded_request_method); - if (status < 0) { - result.reply_type = AMQP_RESPONSE_LIBRARY_EXCEPTION; - result.library_error = -status; - return result; - } - - { - amqp_frame_t frame; - - retry: - status = wait_frame_inner(state, &frame); - if (status < 0) { - result.reply_type = AMQP_RESPONSE_LIBRARY_EXCEPTION; - result.library_error = -status; - return result; - } - - /* - * We store the frame for later processing unless it's something - * that directly affects us here, namely a method frame that is - * either - * - on the channel we want, and of the expected type, or - * - on the channel we want, and a channel.close frame, or - * - on channel zero, and a connection.close frame. - */ - if (!( (frame.frame_type == AMQP_FRAME_METHOD) && - ( ((frame.channel == channel) && - ((amqp_id_in_reply_list(frame.payload.method.id, expected_reply_ids)) || - (frame.payload.method.id == AMQP_CHANNEL_CLOSE_METHOD))) - || - ((frame.channel == 0) && - (frame.payload.method.id == AMQP_CONNECTION_CLOSE_METHOD)) ) )) - { - amqp_frame_t *frame_copy = amqp_pool_alloc(&state->decoding_pool, sizeof(amqp_frame_t)); - amqp_link_t *link = amqp_pool_alloc(&state->decoding_pool, sizeof(amqp_link_t)); - - if (frame_copy == NULL || link == NULL) { - result.reply_type = AMQP_RESPONSE_LIBRARY_EXCEPTION; - result.library_error = ERROR_NO_MEMORY; - return result; - } - - *frame_copy = frame; - - link->next = NULL; - link->data = frame_copy; - - if (state->last_queued_frame == NULL) { - state->first_queued_frame = link; - } else { - state->last_queued_frame->next = link; - } - state->last_queued_frame = link; - - goto retry; - } - - result.reply_type = (amqp_id_in_reply_list(frame.payload.method.id, expected_reply_ids)) - ? AMQP_RESPONSE_NORMAL - : AMQP_RESPONSE_SERVER_EXCEPTION; - - result.reply = frame.payload.method; - return result; - } -} - -static int amqp_login_inner(amqp_connection_state_t state, - int channel_max, - int frame_max, - int heartbeat, - amqp_sasl_method_enum sasl_method, - va_list vl) -{ - int res; - amqp_method_t method; - uint32_t server_frame_max; - uint16_t server_channel_max; - uint16_t server_heartbeat; - - amqp_send_header(state); - - res = amqp_simple_wait_method(state, 0, AMQP_CONNECTION_START_METHOD, - &method); - if (res < 0) - return res; - - { - amqp_connection_start_t *s = (amqp_connection_start_t *) method.decoded; - if ((s->version_major != AMQP_PROTOCOL_VERSION_MAJOR) || - (s->version_minor != AMQP_PROTOCOL_VERSION_MINOR)) { - return -ERROR_INCOMPATIBLE_AMQP_VERSION; - } - - /* TODO: check that our chosen SASL mechanism is in the list of - acceptable mechanisms. Or even let the application choose from - the list! */ - } - - { - amqp_connection_start_ok_t s; - amqp_bytes_t response_bytes = sasl_response(&state->decoding_pool, - sasl_method, vl); - - if (response_bytes.bytes == NULL) - return -ERROR_NO_MEMORY; - - s.client_properties.num_entries = 0; - s.client_properties.entries = NULL; - s.mechanism = sasl_method_name(sasl_method); - s.response = response_bytes; - s.locale.bytes = "en_US"; - s.locale.len = 5; - - res = amqp_send_method(state, 0, AMQP_CONNECTION_START_OK_METHOD, &s); - if (res < 0) - return res; - } - - amqp_release_buffers(state); - - res = amqp_simple_wait_method(state, 0, AMQP_CONNECTION_TUNE_METHOD, - &method); - if (res < 0) - return res; - - { - amqp_connection_tune_t *s = (amqp_connection_tune_t *) method.decoded; - server_channel_max = s->channel_max; - server_frame_max = s->frame_max; - server_heartbeat = s->heartbeat; - } - - if (server_channel_max != 0 && server_channel_max < channel_max) - channel_max = server_channel_max; - - if (server_frame_max != 0 && server_frame_max < frame_max) - frame_max = server_frame_max; - - if (server_heartbeat != 0 && server_heartbeat < heartbeat) - heartbeat = server_heartbeat; - - res = amqp_tune_connection(state, channel_max, frame_max, heartbeat); - if (res < 0) - return res; - - { - amqp_connection_tune_ok_t s; - s.frame_max = frame_max; - s.channel_max = channel_max; - s.heartbeat = heartbeat; - - res = amqp_send_method(state, 0, AMQP_CONNECTION_TUNE_OK_METHOD, &s); - if (res < 0) - return res; - } - - amqp_release_buffers(state); - - return 0; -} - -amqp_rpc_reply_t amqp_login(amqp_connection_state_t state, - char const *vhost, - int channel_max, - int frame_max, - int heartbeat, - amqp_sasl_method_enum sasl_method, - ...) -{ - va_list vl; - amqp_rpc_reply_t result; - int status; - - va_start(vl, sasl_method); - - status = amqp_login_inner(state, channel_max, frame_max, heartbeat, sasl_method, vl); - if (status < 0) { - result.reply_type = AMQP_RESPONSE_LIBRARY_EXCEPTION; - result.reply.id = 0; - result.reply.decoded = NULL; - result.library_error = -status; - return result; - } - - { - amqp_method_number_t replies[] = { AMQP_CONNECTION_OPEN_OK_METHOD, 0 }; - amqp_connection_open_t s; - s.virtual_host = amqp_cstring_bytes(vhost); - s.capabilities.len = 0; - s.capabilities.bytes = NULL; - s.insist = 1; - - result = amqp_simple_rpc(state, - 0, - AMQP_CONNECTION_OPEN_METHOD, - (amqp_method_number_t *) &replies, - &s); - if (result.reply_type != AMQP_RESPONSE_NORMAL) - return result; - } - amqp_maybe_release_buffers(state); - - va_end(vl); - - result.reply_type = AMQP_RESPONSE_NORMAL; - result.reply.id = 0; - result.reply.decoded = NULL; - result.library_error = 0; - return result; -} |