diff options
Diffstat (limited to 'dom/media/webrtc/transport/third_party/nICEr/src/stun/stun_msg.c')
| -rw-r--r-- | dom/media/webrtc/transport/third_party/nICEr/src/stun/stun_msg.c | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/dom/media/webrtc/transport/third_party/nICEr/src/stun/stun_msg.c b/dom/media/webrtc/transport/third_party/nICEr/src/stun/stun_msg.c new file mode 100644 index 0000000000..7e01686109 --- /dev/null +++ b/dom/media/webrtc/transport/third_party/nICEr/src/stun/stun_msg.c @@ -0,0 +1,364 @@ +/* +Copyright (c) 2007, Adobe Systems, Incorporated +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + +* Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + +* Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + +* Neither the name of Adobe Systems, Network Resonance nor the names of its + contributors may be used to endorse or promote products derived from + this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include <errno.h> +#include <csi_platform.h> + +#ifdef WIN32 +#include <winsock2.h> +#include <stdlib.h> +#include <io.h> +#include <time.h> +#else /* UNIX */ +#include <string.h> +#endif /* end UNIX */ +#include <assert.h> + +#include "stun.h" + + +int +nr_stun_message_create(nr_stun_message **msg) +{ + int _status; + nr_stun_message *m = 0; + + m = RCALLOC(sizeof(*m)); + if (!m) + ABORT(R_NO_MEMORY); + + TAILQ_INIT(&m->attributes); + + *msg = m; + + _status=0; + abort: + return(_status); +} + +int +nr_stun_message_create2(nr_stun_message **msg, UCHAR *buffer, size_t length) +{ + int r,_status; + nr_stun_message *m = 0; + + if (length > sizeof(m->buffer)) { + ABORT(R_BAD_DATA); + } + + if ((r=nr_stun_message_create(&m))) + ABORT(r); + + memcpy(m->buffer, buffer, length); + m->length = length; + + *msg = m; + + _status=0; + abort: + return(_status); +} + +int +nr_stun_message_destroy(nr_stun_message **msg) +{ + int _status; + nr_stun_message_attribute_head *attrs; + nr_stun_message_attribute *attr; + + if (msg && *msg) { + attrs = &(*msg)->attributes; + while (!TAILQ_EMPTY(attrs)) { + attr = TAILQ_FIRST(attrs); + nr_stun_message_attribute_destroy(*msg, &attr); + } + + RFREE(*msg); + + *msg = 0; + } + + _status=0; +/* abort: */ + return(_status); +} + +int +nr_stun_message_attribute_create(nr_stun_message *msg, nr_stun_message_attribute **attr) +{ + int _status; + nr_stun_message_attribute *a = 0; + + a = RCALLOC(sizeof(*a)); + if (!a) + ABORT(R_NO_MEMORY); + + TAILQ_INSERT_TAIL(&msg->attributes, a, entry); + + *attr = a; + + _status=0; + abort: + return(_status); +} + +int +nr_stun_message_attribute_destroy(nr_stun_message *msg, nr_stun_message_attribute **attr) +{ + int _status; + nr_stun_message_attribute *a = 0; + + if (attr && *attr) { + a = *attr; + TAILQ_REMOVE(&msg->attributes, a, entry); + + RFREE(a); + + *attr = 0; + } + + _status=0; +/* abort: */ + return(_status); +} + +int +nr_stun_message_has_attribute(nr_stun_message *msg, UINT2 type, nr_stun_message_attribute **attribute) +{ + nr_stun_message_attribute *attr = 0; + nr_stun_message_get_attribute(msg, type, 0, &attr); + + if (attribute) + *attribute = attr; + + return attr ? 1 : 0; +} + +int +nr_stun_message_get_attribute(nr_stun_message *msg, UINT2 type, UINT2 index, nr_stun_message_attribute **attribute) +{ + nr_stun_message_attribute *attr; + TAILQ_FOREACH(attr, &msg->attributes, entry) { + if (attr->type == type && !attr->invalid) { + if (!index) { + *attribute = attr; + return 0; + } + --index; + } + } + *attribute = 0; + return R_NOT_FOUND; +} + +#define NR_STUN_MESSAGE_ADD_ATTRIBUTE(__type, __code) \ + { \ + int r,_status; \ + nr_stun_message_attribute *attr = 0; \ + if ((r=nr_stun_message_attribute_create(msg, &attr))) \ + ABORT(r); \ + attr->type = (__type); \ + { __code } \ + _status=0; \ + abort: \ + if (_status){ \ + nr_stun_message_attribute_destroy(msg, &attr); \ + } \ + return(_status); \ + } + + +int +nr_stun_message_add_alternate_server_attribute(nr_stun_message *msg, nr_transport_addr *alternate_server) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_ALTERNATE_SERVER, + { + if ((r=nr_transport_addr_copy(&attr->u.alternate_server, alternate_server))) + ABORT(r); + } +) + +int +nr_stun_message_add_error_code_attribute(nr_stun_message *msg, UINT2 number, char *reason) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_ERROR_CODE, + { + attr->u.error_code.number = number; + (void)strlcpy(attr->u.error_code.reason, reason, sizeof(attr->u.error_code.reason)); + } +) + +int +nr_stun_message_add_fingerprint_attribute(nr_stun_message *msg) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_FINGERPRINT, + {} +) + +int +nr_stun_message_add_message_integrity_attribute(nr_stun_message *msg, Data *password) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_MESSAGE_INTEGRITY, + { + if (sizeof(attr->u.message_integrity.password) < password->len) + ABORT(R_BAD_DATA); + + memcpy(attr->u.message_integrity.password, password->data, password->len); + attr->u.message_integrity.passwordlen = password->len; + } +) + +int +nr_stun_message_add_nonce_attribute(nr_stun_message *msg, char *nonce) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_NONCE, + { (void)strlcpy(attr->u.nonce, nonce, sizeof(attr->u.nonce)); } +) + +int +nr_stun_message_add_realm_attribute(nr_stun_message *msg, char *realm) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_REALM, + { (void)strlcpy(attr->u.realm, realm, sizeof(attr->u.realm)); } +) + +int +nr_stun_message_add_server_attribute(nr_stun_message *msg, char *server_name) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_SERVER, + { (void)strlcpy(attr->u.server_name, server_name, sizeof(attr->u.server_name)); } +) + +int +nr_stun_message_add_unknown_attributes_attribute(nr_stun_message *msg, nr_stun_attr_unknown_attributes *unknown_attributes) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_UNKNOWN_ATTRIBUTES, + { memcpy(&attr->u.unknown_attributes, unknown_attributes, sizeof(attr->u.unknown_attributes)); } +) + +int +nr_stun_message_add_username_attribute(nr_stun_message *msg, char *username) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_USERNAME, + { (void)strlcpy(attr->u.username, username, sizeof(attr->u.username)); } +) + +int +nr_stun_message_add_requested_transport_attribute(nr_stun_message *msg, UCHAR protocol) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_REQUESTED_TRANSPORT, + { attr->u.requested_transport = protocol; } +) + +int +nr_stun_message_add_xor_mapped_address_attribute(nr_stun_message *msg, nr_transport_addr *mapped_address) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_XOR_MAPPED_ADDRESS, + { + if ((r=nr_transport_addr_copy(&attr->u.xor_mapped_address.unmasked, mapped_address))) + ABORT(r); + } +) + +int +nr_stun_message_add_xor_peer_address_attribute(nr_stun_message *msg, nr_transport_addr *peer_address) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_XOR_PEER_ADDRESS, + { + if ((r=nr_transport_addr_copy(&attr->u.xor_mapped_address.unmasked, peer_address))) + ABORT(r); + } +) + +#ifdef USE_ICE +int +nr_stun_message_add_ice_controlled_attribute(nr_stun_message *msg, UINT8 ice_controlled) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_ICE_CONTROLLED, + { attr->u.ice_controlled = ice_controlled; } +) + +int +nr_stun_message_add_ice_controlling_attribute(nr_stun_message *msg, UINT8 ice_controlling) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_ICE_CONTROLLING, + { attr->u.ice_controlling = ice_controlling; } +) + +int +nr_stun_message_add_priority_attribute(nr_stun_message *msg, UINT4 priority) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_PRIORITY, + { attr->u.priority = priority; } +) + +int +nr_stun_message_add_use_candidate_attribute(nr_stun_message *msg) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_USE_CANDIDATE, + {} +) +#endif /* USE_ICE */ + +#ifdef USE_TURN +int +nr_stun_message_add_data_attribute(nr_stun_message *msg, UCHAR *data, int length) + +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_DATA, + { + if (length > NR_STUN_MAX_MESSAGE_SIZE) + ABORT(R_BAD_ARGS); + + memcpy(attr->u.data.data, data, length); + attr->u.data.length=length; + } +) + +int +nr_stun_message_add_lifetime_attribute(nr_stun_message *msg, UINT4 lifetime_secs) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_LIFETIME, + { attr->u.lifetime_secs = lifetime_secs; } +) + +#endif /* USE_TURN */ + +#ifdef USE_STUND_0_96 +int +nr_stun_message_add_change_request_attribute(nr_stun_message *msg, UINT4 change_request) +NR_STUN_MESSAGE_ADD_ATTRIBUTE( + NR_STUN_ATTR_OLD_CHANGE_REQUEST, + { attr->u.change_request = change_request; } +) +#endif /* USE_STUND_0_96 */ + |