Protocol version 1.2 integrations

[silc.git] / lib / silccore / silcchannel_i.h

diff --git a/lib/silccore/silcchannel_i.h b/lib/silccore/silcchannel_i.h
new file mode 100644 (file)
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+++ b/lib/silccore/silcchannel_i.h
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+/*
+
+  silcchannel_i.h 
+
+  Author: Pekka Riikonen <priikone@silcnet.org>
+
+  Copyright (C) 1997 - 2002 Pekka Riikonen
+
+  This program 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; version 2 of the License.
+
+  This program 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.
+
+*/
+
+#ifndef SILCCHANNEL_I_H
+#define SILCCHANNEL_I_H
+
+#ifndef SILCCHANNEL_H
+#error "Do not include internal header file directly"
+#endif
+
+/******************************************************************************
+
+                              Channel Payload
+
+******************************************************************************/
+
+/* Channel Message Payload structure. Contents of this structure is parsed
+   from SILC packets. */
+struct SilcChannelPayloadStruct {
+  unsigned char *channel_name;
+  unsigned char *channel_id;
+  SilcUInt32 mode;
+  SilcUInt16 name_len;
+  SilcUInt16 id_len;
+};
+
+
+/******************************************************************************
+
+                          Channel Message Payload
+
+******************************************************************************/
+
+/* Calculates padding length for message payload */
+#define SILC_CHANNEL_MESSAGE_PAD(__payloadlen) (16 - ((__payloadlen) % 16))
+
+/* Header length plus maximum padding length */
+#define SILC_CHANNEL_MESSAGE_HLEN 6 + 16
+
+/* Returns the data length that fits to the packet.  If data length is too
+   big it will be truncated to fit to the payload. */
+#define SILC_CHANNEL_MESSAGE_DATALEN(data_len, header_len)             \
+  ((data_len + SILC_CHANNEL_MESSAGE_HLEN + header_len) >               \
+   SILC_PACKET_MAX_LEN ?                                               \
+   data_len - ((data_len + SILC_CHANNEL_MESSAGE_HLEN + header_len) -   \
+              SILC_PACKET_MAX_LEN) : data_len)
+
+/* Channel Message Payload structure. Contents of this structure is parsed
+   from SILC packets. */
+struct SilcChannelMessagePayloadStruct {
+  unsigned char *data;
+  unsigned char *pad;
+  unsigned char *mac;
+  unsigned char *iv;
+  SilcMessageFlags flags;
+  SilcUInt16 data_len;
+  SilcUInt16 pad_len;
+  SilcUInt16 iv_len;
+};
+
+
+/******************************************************************************
+
+                             Channel Key Payload
+
+******************************************************************************/
+
+/* Channel Key Payload structrue. Channel keys are parsed from SILC
+   packets into this structure. */
+struct SilcChannelKeyPayloadStruct {
+  unsigned char *id;
+  unsigned char *cipher;
+  unsigned char *key;
+  SilcUInt16 id_len;
+  SilcUInt16 cipher_len;
+  SilcUInt16 key_len;
+};
+
+#endif /* SILCCHANNEL_I_H */