lib/silccore/silcchannel.h

   1 /*
   2
   3   silcchannel.h
   4
   5   Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
   6
   7   Copyright (C) 1997 - 2001 Pekka Riikonen
   8
   9   This program is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU General Public License as published by
  11   the Free Software Foundation; either version 2 of the License, or
  12   (at your option) any later version.
  13
  14   This program is distributed in the hope that it will be useful,
  15   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17   GNU General Public License for more details.
  18
  19 */
  20
  21 #ifndef SILCCHANNEL_H
  22 #define SILCCHANNEL_H
  23
  24 #include "silcdlist.h"
  25
  26 /* Forward declaration for Channel Payload parsed from packet. The
  27    actual structure is defined in source file and is private data. */
  28 typedef struct SilcChannelPayloadStruct *SilcChannelPayload;
  29
  30 /* Forward declaration for Channel Message Payload parsed from packet. The
  31    actual structure is defined in source file and is private data. */
  32 typedef struct SilcChannelMessagePayloadStruct *SilcChannelMessagePayload;
  33
  34 /* Forward declaration for Channel Key Payload parsed from packet. The
  35    actual structure is defined in source file and is private data. */
  36 typedef struct SilcChannelKeyPayloadStruct *SilcChannelKeyPayload;
  37
  38 /* Prototypes */
  39 SilcChannelPayload silc_channel_payload_parse(SilcBuffer buffer);
  40 SilcDList silc_channel_payload_parse_list(SilcBuffer buffer);
  41 SilcBuffer silc_channel_payload_encode(unsigned char *channel_name,
  42                                        unsigned short channel_name_len,
  43                                        unsigned char *channel_id,
  44                                        unsigned int channel_id_len,
  45                                        unsigned int mode);
  46 void silc_channel_payload_free(SilcChannelPayload payload);
  47 void silc_channel_payload_list_free(SilcDList list);
  48 unsigned char *silc_channel_get_name(SilcChannelPayload payload,
  49                                      unsigned int *channel_name_len);
  50 unsigned char *silc_channel_get_id(SilcChannelPayload payload,
  51                                    unsigned int *channel_id_len);
  52 SilcChannelID *silc_channel_get_id_parse(SilcChannelPayload payload);
  53 unsigned int silc_channel_get_mode(SilcChannelPayload payload);
  54 int silc_channel_message_payload_decrypt(unsigned char *data,
  55                                          size_t data_len,
  56                                          SilcCipher cipher,
  57                                          SilcHmac hmac);
  58 SilcChannelMessagePayload
  59 silc_channel_message_payload_parse(SilcBuffer buffer,
  60                                    SilcCipher cipher,
  61                                    SilcHmac hmac);
  62 SilcBuffer silc_channel_message_payload_encode(unsigned short data_len,
  63                                                unsigned char *data,
  64                                                unsigned short iv_len,
  65                                                unsigned char *iv,
  66                                                SilcCipher cipher,
  67                                                SilcHmac hmac,
  68                                                SilcRng rng);
  69 void silc_channel_message_payload_free(SilcChannelMessagePayload payload);
  70 unsigned char *silc_channel_message_get_data(SilcChannelMessagePayload payload,
  71                                      unsigned int *data_len);
  72 unsigned char *silc_channel_message_get_mac(SilcChannelMessagePayload payload);
  73 unsigned char *silc_channel_message_get_iv(SilcChannelMessagePayload payload);
  74 SilcChannelKeyPayload silc_channel_key_payload_parse(SilcBuffer buffer);
  75 SilcBuffer silc_channel_key_payload_encode(unsigned short id_len,
  76                                            unsigned char *id,
  77                                            unsigned short cipher_len,
  78                                            unsigned char *cipher,
  79                                            unsigned short key_len,
  80                                            unsigned char *key);
  81 void silc_channel_key_payload_free(SilcChannelKeyPayload payload);
  82 unsigned char *silc_channel_key_get_id(SilcChannelKeyPayload payload,
  83                                        unsigned int *id_len);
  84 unsigned char *silc_channel_key_get_cipher(SilcChannelKeyPayload payload,
  85                                            unsigned int *cipher_len);
  86 unsigned char *silc_channel_key_get_key(SilcChannelKeyPayload payload,
  87                                         unsigned int *key_len);
  88
  89 #endif