diff options
Diffstat (limited to 'tinyNET/src/stun/tnet_stun_attribute.c')
| -rw-r--r-- | tinyNET/src/stun/tnet_stun_attribute.c | 960 |
1 files changed, 960 insertions, 0 deletions
diff --git a/tinyNET/src/stun/tnet_stun_attribute.c b/tinyNET/src/stun/tnet_stun_attribute.c new file mode 100644 index 0000000..feb6909 --- /dev/null +++ b/tinyNET/src/stun/tnet_stun_attribute.c @@ -0,0 +1,960 @@ +/* +* Copyright (C) 2009-2010 Mamadou Diop. +* +* Contact: Mamadou Diop <diopmamadou(at)doubango.org> +* +* This file is part of Open Source Doubango Framework. +* +* DOUBANGO is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* DOUBANGO is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with DOUBANGO. +* +*/ + +/**@file tnet_stun_attribute.c + * @brief STUN2(RFC 5389) attribute parser. + * + * @author Mamadou Diop <diopmamadou(at)doubango.org> + * + * @date Created: Sat Nov 8 16:54:58 2009 mdiop + */ +#include "tnet_stun_attribute.h" + +#include "tnet_stun.h" + +#include "../tnet_types.h" +#include "../tnet_endianness.h" + +#include "../turn/tnet_turn_attribute.h" + +#include "tsk_memory.h" +#include "tsk_string.h" +#include "tsk_debug.h" + +#include <string.h> + + +/**@ingroup tnet_stun_group +* RFC 5389 - 15. STUN Attributes +* Creates new @ref tnet_stun_attribute_def_t object. +*/ +tnet_stun_attribute_t* tnet_stun_attribute_create() +{ + return tsk_object_new(tnet_stun_attribute_def_t); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.1. MAPPED-ADDRESS. +* Creates new @ref tnet_stun_attribute_mapped_addr_t object. +*/ +tnet_stun_attribute_mapped_addr_t* tnet_stun_attribute_mapped_address_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_mapped_addr_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.2. XOR-MAPPED-ADDRESS. +* Creates new @ref tnet_stun_attribute_xmapped_addr_t object. +*/ +tnet_stun_attribute_xmapped_addr_t* tnet_stun_attribute_xmapped_address_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_xmapped_addr_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.3. USERNAME. +* Creates new @ref tnet_stun_attribute_username_t object. +*/ +tnet_stun_attribute_username_t* tnet_stun_attribute_username_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_username_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.4. MESSAGE-INTEGRITY. +* Creates new @ref tnet_stun_attribute_integrity_t object. +*/ +tnet_stun_attribute_integrity_t* tnet_stun_attribute_integrity_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_integrity_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.5. FINGERPRINT. +* Creates new @ref tnet_stun_attribute_fingerprint_t object. +*/ +tnet_stun_attribute_fingerprint_t* tnet_stun_attribute_fingerprint_create(uint32_t fingerprint) +{ + return tsk_object_new(tnet_stun_attribute_fingerprint_def_t, fingerprint); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.6. ERROR-CODE +* Creates new @ref tnet_stun_attribute_errorcode_t object. +*/ +tnet_stun_attribute_errorcode_t* tnet_stun_attribute_errorcode_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_errorcode_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.7. REALM. +* Creates new @ref tnet_stun_attribute_realm_t object. +*/ +tnet_stun_attribute_realm_t* tnet_stun_attribute_realm_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_realm_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.8. NONCE. +* Creates new @ref tnet_stun_attribute_nonce_t object. +*/ +tnet_stun_attribute_nonce_t* tnet_stun_attribute_nonce_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_nonce_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.9. UNKNOWN-ATTRIBUTES. +* Creates new @ref tnet_stun_attribute_unknowns_t object. +*/ +tnet_stun_attribute_unknowns_t* tnet_stun_attribute_unknowns_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_unknowns_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.10. SOFTWARE. +* Creates new @ref tnet_stun_attribute_software_t object. +*/ +tnet_stun_attribute_software_t* tnet_stun_attribute_software_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_software_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* RFC 5389 - 15.11. ALTERNATE-SERVER. +* Creates new @ref tnet_stun_attribute_altserver_t object. +*/ +tnet_stun_attribute_altserver_t* tnet_stun_attribute_altserver_create(const void* payload, tsk_size_t payload_size) +{ + return tsk_object_new(tnet_stun_attribute_altserver_def_t, payload, payload_size); +} + +/**@ingroup tnet_stun_group +* Creates @ref tnet_stun_attribute_t from raw buffer. +* @param data Raw buffer from which to create the STUN attribute.* +* @param size The size of the eaw buffer. +* @retval @ref tnet_stun_attribute_t object if succeed and NULL other wise. +*/ +tnet_stun_attribute_t* tnet_stun_attribute_deserialize(const void* data, tsk_size_t size) +{ + tnet_stun_attribute_t *attribute = 0; + const uint8_t* dataPtr = data; + + tnet_stun_attribute_type_t type = (tnet_stun_attribute_type_t)tnet_ntohs_2(dataPtr); + uint16_t length = tnet_ntohs_2(&dataPtr[2]); + + /* Check validity */ + if(!data || size<=4/* Type(2-bytes) plus Length (2-bytes) */) + { + return 0; + } + + dataPtr += (2 /* Type */+ 2/* Length */); + + /* Attribute Value + */ + + switch(type) + { + /* RFC 5389 - 15.1. MAPPED-ADDRESS */ + case stun_mapped_address: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_mapped_address_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.2. XOR-MAPPED-ADDRESS*/ + case stun_xor_mapped_address: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_xmapped_address_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.3. USERNAME*/ + case stun_username: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_username_create(dataPtr, length); + break; + } + + + /* RFC 5389 - MESSAGE-INTEGRITY*/ + case stun_message_integrity: + { + if(length == TSK_SHA1_DIGEST_SIZE){ + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_integrity_create(dataPtr, length); + } + break; + } + + /* RFC 5389 - 15.5. FINGERPRINT*/ + case stun_fingerprint: + { + uint32_t fingerprint = tnet_htonl_2(dataPtr); + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_fingerprint_create(fingerprint); + break; + } + + /* RFC 5389 - 15.6. ERROR-CODE*/ + case stun_error_code: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_errorcode_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.7. REALM*/ + case stun_realm: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_realm_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.8. NONCE*/ + case stun_nonce: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_nonce_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.9. UNKNOWN-ATTRIBUTES*/ + case stun_unknown_attributes: + { + TSK_DEBUG_ERROR("DESERIALIZE:UNKNOWN-ATTRIBUTES ==> NOT IMPLEMENTED"); + attribute = tnet_stun_attribute_create(); + break; + } + + /* RFC 5389 - 15.10. SOFTWARE */ + case stun_software: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_software_create(dataPtr, length); + break; + } + + /* RFC 5389 - 15.11. ALTERNATE-SERVER */ + case stun_alternate_server: + { + attribute = (tnet_stun_attribute_t *)tnet_stun_attribute_altserver_create(dataPtr, length); + break; + } + + /* draft-ietf-behave-turn-16 subclause 14 */ + case stun_channel_number: + case stun_lifetime: + case stun_reserved2: + case stun_xor_peer_address: + case stun_data: + case stun_xor_relayed_address: + case stun_even_port: + case stun_requested_transport: + case stun_dont_fragment: + case stun_reserved3: + case stun_reservation_token: + { + attribute = tnet_turn_attribute_deserialize(type, length, dataPtr, length); + break; + } + + default: + //TSK_DEBUG_WARN("==> NOT IMPLEMENTED"); + break; + } + + if(!attribute){ + /* Create default */ + attribute = tnet_stun_attribute_create(); + } + + /* Set common values (Do I need this ==> already set by the constructor). */ + attribute->type = type; + attribute->length = length; + + return attribute; +} + +/**@ingroup tnet_stun_group +* Serializes a @ref tnet_stun_attribute_t objet in binary format. +* @param attribute The STUN attribute to serialize. +* @param output The output binary buffer. +* @retval Zero if succeed and non-zero error code otherwise. +*/ +int tnet_stun_attribute_serialize(const tnet_stun_attribute_t* attribute, tsk_buffer_t *output) +{ + if(!attribute || !output){ + return -1; + } + + /* Attribute Type + */ + { + uint16_t type = tnet_htons(attribute->type); + tsk_buffer_append(output, &(type), 2); + } + + /* Attribute Length + */ + { + uint16_t length = tnet_htons(attribute->length); + tsk_buffer_append(output, &(length), 2); + } + + /* Attribute Value + */ + + switch(attribute->type){ + /* RFC 5389 - 15.1. MAPPED-ADDRESS */ + case stun_mapped_address: + { + TSK_DEBUG_ERROR("NOT IMPLEMENTED"); + return -3; + } + + /* RFC 5389 - 15.2. XOR-MAPPED-ADDRESS*/ + case stun_xor_mapped_address: + { + TSK_DEBUG_ERROR("NOT IMPLEMENTED"); + return -3; + } + + /* RFC 5389 - 15.3. USERNAME*/ + case stun_username: + { + tnet_stun_attribute_username_t *username = (tnet_stun_attribute_username_t*)attribute; + tsk_buffer_append(output, username->value, tsk_strlen(username->value)); + return 0; + } + + + /* RFC 5389 - MESSAGE-INTEGRITY*/ + case stun_message_integrity: + { + tnet_stun_attribute_integrity_t *integrity = (tnet_stun_attribute_integrity_t*)attribute; + tsk_buffer_append(output, integrity->sha1digest, TSK_SHA1_DIGEST_SIZE); + return 0; + } + + /* RFC 5389 - 15.5. FINGERPRINT*/ + case stun_fingerprint: + { + uint32_t fingerprint = /*tnet_htonl*/(((tnet_stun_attribute_fingerprint_t*)attribute)->value); + tsk_buffer_append(output, &fingerprint, 4); + return 0; + } + + /* RFC 5389 - 15.6. ERROR-CODE*/ + case stun_error_code: + { + TSK_DEBUG_ERROR("NOT IMPLEMENTED"); + return -3; + } + + /* RFC 5389 - 15.7. REALM*/ + case stun_realm: + { + tnet_stun_attribute_realm_t *realm = (tnet_stun_attribute_realm_t*)attribute; + tsk_buffer_append(output, realm->value, tsk_strlen(realm->value)); + return 0; + } + + /* RFC 5389 - 15.8. NONCE*/ + case stun_nonce: + { + tnet_stun_attribute_nonce_t *nonce = (tnet_stun_attribute_nonce_t*)attribute; + tsk_buffer_append(output, nonce->value, tsk_strlen(nonce->value)); + return 0; + } + + /* RFC 5389 - 15.9. UNKNOWN-ATTRIBUTES*/ + case stun_unknown_attributes: + { + TSK_DEBUG_ERROR("NOT IMPLEMENTED"); + return -3; + } + + /* RFC 5389 - 15.10. SOFTWARE */ + case stun_software: + { + tnet_stun_attribute_software_t *software = (tnet_stun_attribute_software_t*)attribute; + tsk_buffer_append(output, software->value, tsk_strlen(software->value)); + return 0; + } + + /* RFC 5389 - 15.11. ALTERNATE-SERVER */ + case stun_alternate_server: + { + TSK_DEBUG_ERROR("NOT IMPLEMENTED"); + return -3; + } + /* draft-ietf-behave-turn-16 - */ + case stun_channel_number: + case stun_lifetime: + case stun_reserved2: + case stun_xor_peer_address: + case stun_data: + case stun_xor_relayed_address: + case stun_even_port: + case stun_requested_transport: + case stun_dont_fragment: + case stun_reserved3: + case stun_reservation_token: + { + return tnet_turn_attribute_serialize(attribute, output); + } + + default: + return -2; + } +} + +/**@ingroup tnet_stun_group +* Pads a STUN attribute to align it on 4 octets. +* @param attribute The STUN attribute to pad. +* @param output The output buffer into which to put zeros. +*/ +void tnet_stun_attribute_pad(const tnet_stun_attribute_t* attribute, tsk_buffer_t *output) +{ + if(attribute->length%4){ + static uint32_t zeros = 0x00000000; + tsk_buffer_append(output, &zeros, 4-(attribute->length%4)); + } +} + + + + +//================================================================================================= +// [[RFC 5389 - 15. STUN Attributes]] object definition +// +static tsk_object_t* tnet_stun_attribute_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_t *attribute = self; + if(attribute){ + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_def_s = +{ + sizeof(tnet_stun_attribute_t), + tnet_stun_attribute_ctor, + tnet_stun_attribute_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_def_t = &tnet_stun_attribute_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.1. MAPPED-ADDRESS]] object definition +// +static tsk_object_t* tnet_stun_attribute_mapped_addr_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_mapped_addr_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + if(payload && payload_size){ + const uint8_t *payloadPtr = (const uint8_t*)payload; + payloadPtr += 1; /* Ignore first 8bits */ + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_mapped_address; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + + attribute->family = (tnet_stun_addr_family_t) (*(payloadPtr++)); + attribute->port = tnet_ntohs_2(payloadPtr); + payloadPtr+=2; + + { /*=== Compute IP address */ + tsk_size_t addr_size = (attribute->family == stun_ipv6) ? 16 : (attribute->family == stun_ipv4 ? 4 : 0); + if(addr_size){ + tsk_size_t i; + + for(i=0; i<addr_size; i+=4){ + // ntohl() not needed : byte per byte to avoid endianness problem + attribute->address[i] = payloadPtr[0], + attribute->address[i+1] = payloadPtr[1], + attribute->address[i+2] = payloadPtr[2], + attribute->address[i+3] = payloadPtr[3]; + payloadPtr+=4; + } + } + else{ + TSK_DEBUG_ERROR("UNKNOWN FAMILY [%u].", attribute->family); + } + } + } + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_mapped_addr_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_mapped_addr_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_mapped_addr_def_s = +{ + sizeof(tnet_stun_attribute_mapped_addr_t), + tnet_stun_attribute_mapped_addr_ctor, + tnet_stun_attribute_mapped_addr_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_mapped_addr_def_t = &tnet_stun_attribute_mapped_addr_def_s; + +//================================================================================================= +// [[RFC 5389 - 15.2. XOR-MAPPED-ADDRESS]] object definition +// +static tsk_object_t* tnet_stun_attribute_xmapped_addr_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_xmapped_addr_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + if(payload && payload_size){ + const uint8_t *payloadPtr = (const uint8_t*)payload; + payloadPtr += 1; /* Ignore first 8bits */ + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_xor_mapped_address; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + + attribute->family = (tnet_stun_addr_family_t)(*(payloadPtr++)); + + /* RFC 5389 - 15.2. XOR-MAPPED-ADDRESS + X-Port is computed by taking the mapped port in host byte order, + XOR'ing it with the most significant 16 bits of the magic cookie, and + then the converting the result to network byte order. + */ + attribute->xport = tnet_ntohs_2(payloadPtr); + attribute->xport ^= 0x2112; + payloadPtr+=2; + + + { /*=== Compute IP address */ + + /* RFC 5389 - 15.2. XOR-MAPPED-ADDRESS + If the IP address family is IPv4, X-Address is computed by taking the mapped IP + address in host byte order, XOR'ing it with the magic cookie, and + converting the result to network byte order. + */ + tsk_size_t addr_size = (attribute->family == stun_ipv6) ? 16 : (attribute->family == stun_ipv4 ? 4 : 0); + if(addr_size){ + tsk_size_t i; + uint32_t addr; + + for(i=0; i<addr_size; i+=4){ + addr = tnet_ntohl(tnet_ntohl_2(payloadPtr) ^ TNET_STUN_MAGIC_COOKIE); + memcpy(&attribute->xaddress[i], &addr, 4); + payloadPtr+=4; + } + } + else{ + TSK_DEBUG_ERROR("UNKNOWN FAMILY [%u].", attribute->family); + } + } + } + + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_xmapped_addr_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_xmapped_addr_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_xmapped_addr_def_s = +{ + sizeof(tnet_stun_attribute_xmapped_addr_t), + tnet_stun_attribute_xmapped_addr_ctor, + tnet_stun_attribute_xmapped_addr_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_xmapped_addr_def_t = &tnet_stun_attribute_xmapped_addr_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.3. USERNAME]] object definition +// +static tsk_object_t* tnet_stun_attribute_username_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_username_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + attribute->value = tsk_strndup(payload, payload_size); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_username; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_username_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_username_t *attribute = self; + if(attribute){ + TSK_FREE(attribute->value); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_username_def_s = +{ + sizeof(tnet_stun_attribute_username_t), + tnet_stun_attribute_username_ctor, + tnet_stun_attribute_username_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_username_def_t = &tnet_stun_attribute_username_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.4. MESSAGE-INTEGRITY]] object definition +// +static tsk_object_t* tnet_stun_attribute_integrity_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_integrity_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + if(payload_size == TSK_SHA1_DIGEST_SIZE){ + memcpy(attribute->sha1digest, payload, TSK_SHA1_DIGEST_SIZE); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_message_integrity; + TNET_STUN_ATTRIBUTE(attribute)->length = TSK_SHA1_DIGEST_SIZE; + } + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_integrity_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_integrity_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_integrity_def_s = +{ + sizeof(tnet_stun_attribute_integrity_t), + tnet_stun_attribute_integrity_ctor, + tnet_stun_attribute_integrity_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_integrity_def_t = &tnet_stun_attribute_integrity_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.5. FINGERPRINT]] object definition +// +static tsk_object_t* tnet_stun_attribute_fingerprint_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_fingerprint_t *attribute = self; + if(attribute){ + attribute->value = va_arg(*app, uint32_t); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_fingerprint; + TNET_STUN_ATTRIBUTE(attribute)->length = 4; + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_fingerprint_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_fingerprint_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_fingerprint_def_s = +{ + sizeof(tnet_stun_attribute_fingerprint_t), + tnet_stun_attribute_fingerprint_ctor, + tnet_stun_attribute_fingerprint_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_fingerprint_def_t = &tnet_stun_attribute_fingerprint_def_s; + + + +//================================================================================================= +// [[RFC 5389 - 15.6. ERROR-CODE]] object definition +// +static tsk_object_t* tnet_stun_attribute_errorcode_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_errorcode_t *attribute = self; + if(attribute){ + const uint8_t *payload = (const uint8_t*)va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + if(payload_size >4){ + uint32_t code = tnet_htonl_2(payload); + payload += 4; + + attribute->_class = code >>8; + attribute->number = (code & 0xFF); + attribute->reason_phrase = tsk_strndup((const char*)payload, (payload_size-4)); + } + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_error_code; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_errorcode_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_errorcode_t *attribute = self; + if(attribute){ + TSK_FREE(attribute->reason_phrase); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_errorcode_def_s = +{ + sizeof(tnet_stun_attribute_errorcode_t), + tnet_stun_attribute_errorcode_ctor, + tnet_stun_attribute_errorcode_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_errorcode_def_t = &tnet_stun_attribute_errorcode_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.7. REALM]] object definition +// +static tsk_object_t* tnet_stun_attribute_realm_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_realm_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + attribute->value = tsk_strndup(payload, payload_size); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_realm; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_realm_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_realm_t *attribute = self; + if(attribute){ + TSK_FREE(attribute->value); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_realm_def_s = +{ + sizeof(tnet_stun_attribute_realm_t), + tnet_stun_attribute_realm_ctor, + tnet_stun_attribute_realm_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_realm_def_t = &tnet_stun_attribute_realm_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.8. NONCE]] object definition +// +static tsk_object_t* tnet_stun_attribute_nonce_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_nonce_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + attribute->value = tsk_strndup(payload, payload_size); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_nonce; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_nonce_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_nonce_t *attribute = self; + if(attribute){ + TSK_FREE(attribute->value); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_nonce_def_s = +{ + sizeof(tnet_stun_attribute_nonce_t), + tnet_stun_attribute_nonce_ctor, + tnet_stun_attribute_nonce_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_nonce_def_t = &tnet_stun_attribute_nonce_def_s; + + +//================================================================================================= +// [[RFC 5389 - 15.9. UNKNOWN-ATTRIBUTES]] object definition +// +static tsk_object_t* tnet_stun_attribute_unknowns_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_unknowns_t *attribute = self; + if(attribute){ + //--const void *payload = va_arg(*app, const void*); + //--tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_unknown_attributes; + attribute->value = tsk_buffer_create_null(); + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_unknowns_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_unknowns_t *attribute = self; + if(attribute){ + TSK_OBJECT_SAFE_FREE(attribute->value); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_unknowns_def_s = +{ + sizeof(tnet_stun_attribute_unknowns_t), + tnet_stun_attribute_unknowns_ctor, + tnet_stun_attribute_unknowns_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_unknowns_def_t = &tnet_stun_attribute_unknowns_def_s; + +//================================================================================================= +// [[RFC 5389 - 15.10. SOFTWARE]] object definition +// +static tsk_object_t* tnet_stun_attribute_software_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_software_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_software; + + attribute->value = tsk_strndup(payload, payload_size); + TNET_STUN_ATTRIBUTE(attribute)->length = tsk_strlen(attribute->value); + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_software_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_software_t *attribute = self; + if(attribute){ + TSK_FREE(attribute->value); + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_software_def_s = +{ + sizeof(tnet_stun_attribute_software_t), + tnet_stun_attribute_software_ctor, + tnet_stun_attribute_software_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_software_def_t = &tnet_stun_attribute_software_def_s; + +//================================================================================================= +// [[RFC 5389 - 15.11. ALTERNATE-SERVER]] object definition +// +static tsk_object_t* tnet_stun_attribute_altserver_ctor(tsk_object_t * self, va_list * app) +{ + tnet_stun_attribute_altserver_t *attribute = self; + if(attribute){ + const void *payload = va_arg(*app, const void*); + tsk_size_t payload_size = va_arg(*app, tsk_size_t); + + const uint8_t *payloadPtr = (const uint8_t*)payload; + payloadPtr += 1; /* Ignore first 8bits */ + + TNET_STUN_ATTRIBUTE(attribute)->type = stun_alternate_server; + TNET_STUN_ATTRIBUTE(attribute)->length = payload_size; + + attribute->family = (tnet_stun_addr_family_t) (*(payloadPtr++)); + attribute->port = tnet_ntohs_2(payloadPtr); + payloadPtr+=2; + + if(attribute->family == stun_ipv4){ + uint32_t addr = tnet_htonl_2(payloadPtr); + memcpy(attribute->server, &addr, 4); + payloadPtr+=4; + } + else if(attribute->family == stun_ipv6){ + TSK_DEBUG_ERROR("IPv6 not supported yet."); + } + else{ + TSK_DEBUG_ERROR("UNKNOWN FAMILY."); + } + } + return self; +} + +static tsk_object_t* tnet_stun_attribute_altserver_dtor(tsk_object_t * self) +{ + tnet_stun_attribute_altserver_t *attribute = self; + if(attribute){ + } + return self; +} + +static const tsk_object_def_t tnet_stun_attribute_altserver_def_s = +{ + sizeof(tnet_stun_attribute_altserver_t), + tnet_stun_attribute_altserver_ctor, + tnet_stun_attribute_altserver_dtor, + tsk_null, +}; +const tsk_object_def_t *tnet_stun_attribute_altserver_def_t = &tnet_stun_attribute_altserver_def_s; + |
