Merged silc_1_0_branch to trunk.
[silc.git] / lib / silcclient / protocol.h
index 928479023a4bcd93e5dca733cbfec44f3ea4e10f..019fa37adbc5af7364bacec5e30b73021c389b2a 100644 (file)
@@ -2,15 +2,14 @@
 
   protocol.h
 
-  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+  Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2000 Pekka Riikonen
+  Copyright (C) 1997 - 2004 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; either version 2 of the License, or
-  (at your option) any later version.
-  
+  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
@@ -25,6 +24,7 @@
 #define SILC_PROTOCOL_CLIENT_NONE               0
 #define SILC_PROTOCOL_CLIENT_CONNECTION_AUTH    1
 #define SILC_PROTOCOL_CLIENT_KEY_EXCHANGE       2
+#define SILC_PROTOCOL_CLIENT_REKEY              3
 /* #define SILC_PROTOCOL_CLIENT_MAX             255 */
 
 /* Internal context for key exchange protocol */
@@ -34,19 +34,24 @@ typedef struct {
   SilcRng rng;
   int responder;
 
-  /* Destinations ID taken from authenticataed packet so that we can
-     get the destinations ID. */
-  void *dest_id;
-  SilcIdType dest_id_type;
+  void *dest_id;                   /* Destination ID from packet */
+  SilcIdType dest_id_type;         /* Destination ID type */
 
+  SilcTask timeout_task;
   SilcPacketContext *packet;
-  SilcSKE ske;
+
+  SilcSKESendPacketCb send_packet;  /* SKE's packet sending callback */
+  SilcSKEVerifyCb verify;          /* SKE's key verify callback */
+  SilcSKE ske;                     /* The SKE object */
+  SilcSKEKeyMaterial *keymat;      /* The negotiated key material */
+  void *context;                   /* Internal context */
 } SilcClientKEInternalContext;
 
 /* Internal context for connection authentication protocol */
 typedef struct {
   void *client;
   SilcSocketConnection sock;
+  SilcClientConnectionStatus status;
 
   /* SKE object from Key Exchange protocol. */
   SilcSKE ske;
@@ -63,13 +68,44 @@ typedef struct {
      starting the protocol if we know the authentication data. Otherwise
      these are and remain NULL. */
   unsigned char *auth_data;
-  unsigned int auth_data_len;
+  SilcUInt32 auth_data_len;
 
   SilcTask timeout_task;
 } SilcClientConnAuthInternalContext;
 
+/* Internal context for the rekey protocol */
+typedef struct {
+  void *client;
+  void *context;
+  SilcSocketConnection sock;
+  bool responder;                  /* TRUE if we are receiving party */
+  bool pfs;                        /* TRUE if PFS is to be used */
+  SilcSKE ske;                     /* Defined if PFS is used */
+  SilcPacketContext *packet;
+} SilcClientRekeyInternalContext;
+
 /* Prototypes */
 void silc_client_protocols_register(void);
 void silc_client_protocols_unregister(void);
+void silc_client_protocol_ke_send_packet(SilcSKE ske,
+                                        SilcBuffer packet,
+                                        SilcPacketType type,
+                                        void *context);
+void silc_client_protocol_ke_verify_key(SilcSKE ske,
+                                       unsigned char *pk_data,
+                                       SilcUInt32 pk_len,
+                                       SilcSKEPKType pk_type,
+                                       void *context,
+                                       SilcSKEVerifyCbCompletion completion,
+                                       void *completion_context);
+void silc_client_protocol_ke_set_keys(SilcSKE ske,
+                                     SilcSocketConnection sock,
+                                     SilcSKEKeyMaterial *keymat,
+                                     SilcCipher cipher,
+                                     SilcPKCS pkcs,
+                                     SilcHash hash,
+                                     SilcHmac hmac,
+                                     SilcSKEDiffieHellmanGroup group,
+                                     bool is_responder);
 
 #endif