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-rw-r--r--protocols/Tox/toxcore/toxdns/Makefile.inc29
-rw-r--r--protocols/Tox/toxcore/toxdns/toxdns.c238
-rw-r--r--protocols/Tox/toxcore/toxdns/toxdns.h85
3 files changed, 0 insertions, 352 deletions
diff --git a/protocols/Tox/toxcore/toxdns/Makefile.inc b/protocols/Tox/toxcore/toxdns/Makefile.inc
deleted file mode 100644
index 689a58a5c8..0000000000
--- a/protocols/Tox/toxcore/toxdns/Makefile.inc
+++ /dev/null
@@ -1,29 +0,0 @@
-lib_LTLIBRARIES += libtoxdns.la
-
-libtoxdns_la_include_HEADERS = \
- ../toxdns/toxdns.h
-
-libtoxdns_la_includedir = $(includedir)/tox
-
-libtoxdns_la_SOURCES = ../toxdns/toxdns.h \
- ../toxdns/toxdns.c
-
-libtoxdns_la_CFLAGS = -I$(top_srcdir) \
- -I$(top_srcdir)/toxcore \
- $(LIBSODIUM_CFLAGS) \
- $(NACL_CFLAGS) \
- $(PTHREAD_CFLAGS)
-
-libtoxdns_la_LDFLAGS = $(TOXCORE_LT_LDFLAGS) \
- $(EXTRA_LT_LDFLAGS) \
- $(LIBSODIUM_LDFLAGS) \
- $(NACL_LDFLAGS) \
- $(MATH_LDFLAGS) \
- $(RT_LIBS) \
- $(WINSOCK2_LIBS)
-
-libtoxdns_la_LIBADD = $(LIBSODIUM_LIBS) \
- $(NACL_OBJECTS) \
- $(NAC_LIBS) \
- $(PTHREAD_LIBS) \
- libtoxcore.la
diff --git a/protocols/Tox/toxcore/toxdns/toxdns.c b/protocols/Tox/toxcore/toxdns/toxdns.c
deleted file mode 100644
index 7a7a052dd1..0000000000
--- a/protocols/Tox/toxcore/toxdns/toxdns.c
+++ /dev/null
@@ -1,238 +0,0 @@
-/* toxdns.c
- *
- * Tox secure username DNS toxid resolving functions.
- *
- * Copyright (C) 2013 Tox project All Rights Reserved.
- *
- * This file is part of Tox.
- *
- * Tox 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.
- *
- * Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "../toxcore/Messenger.h"
-#include "../toxcore/logger.h"
-#include "toxdns.h"
-
-static const char base32[32] = {"abcdefghijklmnopqrstuvwxyz012345"};
-
-#define _encode(a, b, c) \
-{ \
-uint8_t i = 0; \
- while(i != c) { \
- *a++ = base32[((b[0] >> bits) | (b[1] << (8 - bits))) & 0x1F]; \
- bits += 5; \
- if(bits >= 8) { \
- bits -= 8; \
- b++; \
- i++; \
- } \
- } \
-} \
-
-typedef struct {
- uint8_t temp_pk[crypto_box_PUBLICKEYBYTES];
- uint8_t temp_sk[crypto_box_SECRETKEYBYTES];
- uint8_t server_public_key[crypto_box_PUBLICKEYBYTES];
- uint8_t shared_key[crypto_box_KEYBYTES];
- uint32_t nonce;
- uint32_t nonce_start;
-} DNS_Object;
-
-static void dns_new_temp_keys(DNS_Object *d)
-{
- d->nonce = d->nonce_start = random_int();
- crypto_box_keypair(d->temp_pk, d->temp_sk);
- encrypt_precompute(d->server_public_key, d->temp_sk, d->shared_key);
-}
-
-/* Create a new tox_dns3 object for server with server_public_key.
- *
- * return Null on failure.
- * return pointer object on success.
- */
-void *tox_dns3_new(uint8_t *server_public_key)
-{
- DNS_Object *d = malloc(sizeof(DNS_Object));
-
- if (d == NULL)
- return NULL;
-
- memcpy(d->server_public_key, server_public_key, crypto_box_PUBLICKEYBYTES);
- dns_new_temp_keys(d);
- return d;
-}
-
-/* Destroy the tox dns3 object.
- */
-void tox_dns3_kill(void *dns3_object)
-{
- memset(dns3_object, 0, sizeof(DNS_Object));
- free(dns3_object);
-}
-
-/* Generate a dns3 string of string_max_len used to query the dns server referred to by to
- * dns3_object for a tox id registered to user with name of name_len.
- *
- * the uint32_t pointed by request_id will be set to the request id which must be passed to
- * tox_decrypt_dns3_TXT() to correctly decode the response.
- *
- * This is what the string returned looks like:
- * 4haaaaipr1o3mz0bxweox541airydbovqlbju51mb4p0ebxq.rlqdj4kkisbep2ks3fj2nvtmk4daduqiueabmexqva1jc
- *
- * returns length of string on sucess.
- * returns -1 on failure.
- */
-int tox_generate_dns3_string(void *dns3_object, uint8_t *string, uint16_t string_max_len, uint32_t *request_id,
- uint8_t *name, uint8_t name_len)
-{
-#define DOT_INTERVAL (6 * 5)
- int base = (sizeof(uint32_t) + crypto_box_PUBLICKEYBYTES + name_len + crypto_box_MACBYTES);
- int end_len = ((base * 8) / 5) + (base / DOT_INTERVAL) + !!(base % 5);
- end_len -= !(base % DOT_INTERVAL);
-
- if (end_len > string_max_len)
- return -1;
-
- DNS_Object *d = dns3_object;
- uint8_t buffer[1024];
- uint8_t nonce[crypto_box_NONCEBYTES] = {0};
- memcpy(nonce, &d->nonce, sizeof(uint32_t));
- memcpy(buffer, &d->nonce, sizeof(uint32_t));
- memcpy(buffer + sizeof(uint32_t), d->temp_pk, crypto_box_PUBLICKEYBYTES);
- int len = encrypt_data_symmetric(d->shared_key, nonce, name, name_len,
- buffer + sizeof(uint32_t) + crypto_box_PUBLICKEYBYTES);
-
- if (len == -1)
- return -1;
-
- int total_len = len + sizeof(uint32_t) + crypto_box_PUBLICKEYBYTES;
- uint8_t *buff = buffer, *old_str = string;
- buffer[total_len] = 0;
- uint8_t bits = 0;
- int i;
-
- for (i = !(total_len % DOT_INTERVAL); i < (total_len / DOT_INTERVAL); ++i) {
- _encode(string, buff, DOT_INTERVAL);
- *string = '.';
- ++string;
- }
-
- int left = total_len - (buff - buffer);
- _encode(string, buff, left);
-#undef DOT_INTERVAL
- *request_id = d->nonce;
- ++d->nonce;
-
- if (d->nonce == d->nonce_start) {
- dns_new_temp_keys(d);
- }
-
- if (end_len != string - old_str) {
- LOGGER_ERROR("tox_generate_dns3_string Fail, %u != %lu\n", end_len, string - old_str);
- return -1;
- }
-
- return string - old_str;
-}
-
-
-static int decode(uint8_t *dest, uint8_t *src)
-{
- uint8_t *p = src, *op = dest, bits = 0;
- *op = 0;
-
- while (*p) {
- uint8_t ch = *p++;
-
- switch (ch) {
- case 'A' ... 'Z': {
- ch = ch - 'A';
- break;
- }
-
- case 'a' ... 'z': {
- ch = ch - 'a';
- break;
- }
-
- case '0' ... '5': {
- ch = ch - '0' + 26;
- break;
- }
-
- default: {
- return - 1;
- }
- }
-
- *op |= (ch << bits);
- bits += 5;
-
- if (bits >= 8) {
- bits -= 8;
- ++op;
- *op = (ch >> (5 - bits));
- }
- }
-
- return op - dest;
-}
-
-/* Decode and decrypt the id_record returned of length id_record_len into
- * tox_id (needs to be at least TOX_FRIEND_ADDRESS_SIZE).
- *
- * request_id is the request id given by tox_generate_dns3_string() when creating the request.
- *
- * the id_record passed to this function should look somewhat like this:
- * 2vgcxuycbuctvauik3plsv3d3aadv4zfjfhi3thaizwxinelrvigchv0ah3qjcsx5qhmaksb2lv2hm5cwbtx0yp
- *
- * returns -1 on failure.
- * returns 0 on success.
- *
- */
-int tox_decrypt_dns3_TXT(void *dns3_object, uint8_t *tox_id, uint8_t *id_record, uint32_t id_record_len,
- uint32_t request_id)
-{
- DNS_Object *d = dns3_object;
-
- if (id_record_len != 87)
- return -1;
-
- /*if (id_record_len > 255 || id_record_len <= (sizeof(uint32_t) + crypto_box_MACBYTES))
- return -1;*/
-
- uint8_t id_record_null[id_record_len + 1];
- memcpy(id_record_null, id_record, id_record_len);
- id_record_null[id_record_len] = 0;
- uint8_t data[id_record_len];
- int length = decode(data, id_record_null);
-
- if (length == -1)
- return -1;
-
- uint8_t nonce[crypto_box_NONCEBYTES] = {0};
- memcpy(nonce, &request_id, sizeof(uint32_t));
- nonce[sizeof(uint32_t)] = 1;
- int len = decrypt_data_symmetric(d->shared_key, nonce, data, length, tox_id);
-
- if (len != FRIEND_ADDRESS_SIZE)
- return -1;
-
- return 0;
-}
diff --git a/protocols/Tox/toxcore/toxdns/toxdns.h b/protocols/Tox/toxcore/toxdns/toxdns.h
deleted file mode 100644
index a0cc323b43..0000000000
--- a/protocols/Tox/toxcore/toxdns/toxdns.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/* toxdns.h
- *
- * Tox secure username DNS toxid resolving functions.
- *
- * Copyright (C) 2014 Tox project All Rights Reserved.
- *
- * This file is part of Tox.
- *
- * Tox 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.
- *
- * Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#ifndef TOXDNS_H
-#define TOXDNS_H
-
-#include <stdint.h>
-
-/* How to use this api to make secure tox dns3 requests:
- *
- * 1. Get the public key of a server that supports tox dns3.
- * 2. use tox_dns3_new() to create a new object to create DNS requests
- * and handle responses for that server.
- * 3. Use tox_generate_dns3_string() to generate a string based on the name we want to query and a request_id
- * that must be stored somewhere for when we want to decrypt the response.
- * 4. take the string and use it for your DNS request like this:
- * _4haaaaipr1o3mz0bxweox541airydbovqlbju51mb4p0ebxq.rlqdj4kkisbep2ks3fj2nvtmk4daduqiueabmexqva1jc._tox.utox.org
- * 5. The TXT in the DNS you receive should look like this:
- * v=tox3;id=2vgcxuycbuctvauik3plsv3d3aadv4zfjfhi3thaizwxinelrvigchv0ah3qjcsx5qhmaksb2lv2hm5cwbtx0yp
- * 6. Take the id string and use it with tox_decrypt_dns3_TXT() and the request_id corresponding to the
- * request we stored earlier to get the Tox id returned by the DNS server.
- */
-
-/* Create a new tox_dns3 object for server with server_public_key of size TOX_CLIENT_ID_SIZE.
- *
- * return Null on failure.
- * return pointer object on success.
- */
-void *tox_dns3_new(uint8_t *server_public_key);
-
-/* Destroy the tox dns3 object.
- */
-void tox_dns3_kill(void *dns3_object);
-
-/* Generate a dns3 string of string_max_len used to query the dns server referred to by to
- * dns3_object for a tox id registered to user with name of name_len.
- *
- * the uint32_t pointed by request_id will be set to the request id which must be passed to
- * tox_decrypt_dns3_TXT() to correctly decode the response.
- *
- * This is what the string returned looks like:
- * 4haaaaipr1o3mz0bxweox541airydbovqlbju51mb4p0ebxq.rlqdj4kkisbep2ks3fj2nvtmk4daduqiueabmexqva1jc
- *
- * returns length of string on sucess.
- * returns -1 on failure.
- */
-int tox_generate_dns3_string(void *dns3_object, uint8_t *string, uint16_t string_max_len, uint32_t *request_id,
- uint8_t *name, uint8_t name_len);
-
-/* Decode and decrypt the id_record returned of length id_record_len into
- * tox_id (needs to be at least TOX_FRIEND_ADDRESS_SIZE).
- *
- * request_id is the request id given by tox_generate_dns3_string() when creating the request.
- *
- * the id_record passed to this function should look somewhat like this:
- * 2vgcxuycbuctvauik3plsv3d3aadv4zfjfhi3thaizwxinelrvigchv0ah3qjcsx5qhmaksb2lv2hm5cwbtx0yp
- *
- * returns -1 on failure.
- * returns 0 on success.
- *
- */
-int tox_decrypt_dns3_TXT(void *dns3_object, uint8_t *tox_id, uint8_t *id_record, uint32_t id_record_len,
- uint32_t request_id);
-
-#endif
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