5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2014 Pekka Riikonen
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; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
24 #error "Do not include this header directly"
27 /* Forward declarations */
28 typedef struct SilcClientStruct *SilcClient;
29 typedef struct SilcClientConnectionStruct *SilcClientConnection;
30 typedef struct SilcClientEntryStruct *SilcClientEntry;
31 typedef struct SilcChannelEntryStruct *SilcChannelEntry;
32 typedef struct SilcServerEntryStruct *SilcServerEntry;
34 typedef struct SilcClientKeyAgreementStruct *SilcClientKeyAgreement;
35 typedef struct SilcClientFtpSessionStruct *SilcClientFtpSession;
36 typedef struct SilcClientCommandReplyContextStruct
37 *SilcClientCommandReplyContext;
38 typedef struct SilcChannelUserStruct *SilcChannelUser;
39 typedef struct SilcClientInternalStruct *SilcClientInternal;
40 typedef struct SilcClientConnectionInternalStruct
41 *SilcClientConnectionInternal;
42 typedef struct SilcChannelPrivateKeyStruct *SilcChannelPrivateKey;
44 /* Internal client entry context */
45 typedef struct SilcClientEntryInternalStruct {
46 void *prv_waiter; /* Private message packet waiter */
47 SilcRwLock lock; /* Read/write lock */
48 SilcCipher send_key; /* Private message key for sending */
49 SilcCipher receive_key; /* Private message key for receiving */
50 SilcHmac hmac_send; /* Private mesage key HMAC for sending */
51 SilcHmac hmac_receive; /* Private mesage key HMAC for receiving */
52 unsigned char *key; /* Valid if application provided the key */
53 SilcUInt32 key_len; /* Key data length */
54 SilcClientKeyAgreement ke; /* Current key agreement context or NULL */
55 SilcAsyncOperation op; /* Asynchronous operation with this client */
57 SilcAtomic32 refcnt; /* Reference counter */
58 SilcAtomic32 deleted; /* Flag indicating whether the client object is
59 already scheduled for deletion */
60 SilcUInt16 resolve_cmd_ident; /* Command identifier when resolving */
63 unsigned int valid : 1; /* FALSE if this entry is not valid. Entry
64 without nickname is not valid. */
65 unsigned int generated : 1; /* TRUE if library generated `key' */
66 unsigned int prv_resp : 1; /* TRUE if we are responder when using
67 private message keys. */
68 } SilcClientEntryInternal;
70 /* Internal channel entry context */
71 typedef struct SilcChannelEntryInternalStruct {
72 SilcRwLock lock; /* Read/write lock */
74 /* SilcChannelEntry status information */
75 SilcDList old_channel_keys;
78 /* Channel private keys */
79 SilcDList private_keys; /* List of private keys or NULL */
80 SilcChannelPrivateKey curr_key; /* Current private key */
83 SilcCipher send_key; /* The channel key */
84 SilcCipher receive_key; /* The channel key */
85 SilcHmac hmac; /* Current HMAC */
86 unsigned char iv[SILC_CIPHER_MAX_IV_SIZE]; /* Current IV */
88 SilcAtomic32 refcnt; /* Reference counter */
89 SilcAtomic32 deleted; /* Flag indicating whether the
90 channel object is already
91 scheduled for deletion */
92 SilcUInt16 resolve_cmd_ident; /* Channel information resolving
93 identifier. This is used when
94 resolving users, and other
95 stuff that relates to the
96 channel. Not used for the
97 channel resolving itself. */
98 } SilcChannelEntryInternal;
100 /* Internal server entry context */
101 typedef struct SilcServerEntryInternalStruct {
102 SilcRwLock lock; /* Read/write lock */
103 SilcUInt16 resolve_cmd_ident; /* Resolving identifier */
104 SilcAtomic32 refcnt; /* Reference counter */
105 SilcAtomic32 deleted; /* Flag indicating whether the
106 server object is already
107 scheduled for deletion. */
108 } SilcServerEntryInternal;
110 #endif /* CLIENT_H */