Mercurial > dropbear

annotate auth.h @ 266:e37b160c414c DROPBEAR_0.47

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* options.h: bump the version number
author Matt Johnston <matt@ucc.asn.au>
date Fri, 09 Dec 2005 06:10:27 +0000
parents efbaf6b03837
children 475a818dd6e7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
1 /*
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
2 * Dropbear - a SSH2 server
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
3 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
4 * Copyright (c) 2002,2003 Matt Johnston
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
5 * All rights reserved.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
6 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
8 * of this software and associated documentation files (the "Software"), to deal
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
9 * in the Software without restriction, including without limitation the rights
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
11 * copies of the Software, and to permit persons to whom the Software is
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
12 * furnished to do so, subject to the following conditions:
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
13 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
14 * The above copyright notice and this permission notice shall be included in
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
15 * all copies or substantial portions of the Software.
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
16 *
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
23 * SOFTWARE. */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
24
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
25 #ifndef _AUTH_H_
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
26 #define _AUTH_H_
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
27
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
28 #include "includes.h"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
29
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
30 void svr_authinitialise();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
31 void cli_authinitialise();
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
32
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
33 /* Server functions */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
34 void recv_msg_userauth_request();
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
35 void send_msg_userauth_failure(int partial, int incrfail);
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
36 void send_msg_userauth_success();
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
37 void svr_auth_password();
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
38 void svr_auth_pubkey();
57
3b2a5a1c4347 svr-authpam code merged and works. needs tidying a log
Matt Johnston <matt@ucc.asn.au>
parents: 47
diff changeset
39 void svr_auth_pam();
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
40
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
41 /* Client functions */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
42 void recv_msg_userauth_failure();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
43 void recv_msg_userauth_success();
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
44 void recv_msg_userauth_specific_60();
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
45 void recv_msg_userauth_pk_ok();
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
46 void recv_msg_userauth_info_request();
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
47 void cli_get_user();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
48 void cli_auth_getmethods();
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
49 void cli_auth_try();
43
942b22d7dd1c Banner printing
Matt Johnston <matt@ucc.asn.au>
parents: 33
diff changeset
50 void recv_msg_userauth_banner();
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
51 void cli_pubkeyfail();
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
52 void cli_auth_password();
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
53 int cli_auth_pubkey();
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
54 void cli_auth_interactive();
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
55
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
56
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
57 #define MAX_USERNAME_LEN 25 /* arbitrary for the moment */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
58
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
59 #define AUTH_TYPE_NONE 1
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
60 #define AUTH_TYPE_PUBKEY 1 << 1
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
61 #define AUTH_TYPE_PASSWORD 1 << 2
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
62 #define AUTH_TYPE_INTERACT 1 << 3
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
63
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
64 #define AUTH_METHOD_NONE "none"
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
65 #define AUTH_METHOD_NONE_LEN 4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
66 #define AUTH_METHOD_PUBKEY "publickey"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
67 #define AUTH_METHOD_PUBKEY_LEN 9
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
68 #define AUTH_METHOD_PASSWORD "password"
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
69 #define AUTH_METHOD_PASSWORD_LEN 8
249
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
70 #define AUTH_METHOD_INTERACT "keyboard-interactive"
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
71 #define AUTH_METHOD_INTERACT_LEN 20
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
72
efbaf6b03837 added keyboard-interactive client support
Matt Johnston <matt@ucc.asn.au>
parents: 248
diff changeset
73
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
74
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
75 /* This structure is shared between server and client - it contains
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
76 * relatively little extraneous bits when used for the client rather than the
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
77 * server */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
78 struct AuthState {
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
79
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
80 char *username; /* This is the username the client presents to check. It
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
81 is updated each run through, used for auth checking */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
82 unsigned char authtypes; /* Flags indicating which auth types are still
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
83 valid */
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
84 unsigned int failcount; /* Number of (failed) authentication attempts.*/
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
85 unsigned authdone : 1; /* 0 if we haven't authed, 1 if we have. Applies for
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
86 client and server (though has differing [obvious]
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
87 meanings). */
248
bf64e666f99b Log when pubkey auth fails because of bad pubkey perms/ownership
Matt Johnston <matt@ucc.asn.au>
parents: 215
diff changeset
88 unsigned perm_warn : 1; /* Server only, set if bad permissions on
bf64e666f99b Log when pubkey auth fails because of bad pubkey perms/ownership
Matt Johnston <matt@ucc.asn.au>
parents: 215
diff changeset
89 ~/.ssh/authorized_keys have already been
bf64e666f99b Log when pubkey auth fails because of bad pubkey perms/ownership
Matt Johnston <matt@ucc.asn.au>
parents: 215
diff changeset
90 logged. */
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
91
33
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
92 /* These are only used for the server */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
93 char *printableuser; /* stripped of control chars, used for logs etc */
f789045062e6 Progressing client support
Matt Johnston <matt@ucc.asn.au>
parents: 4
diff changeset
94 struct passwd * pw;
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
95
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
96 };
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
97
215
aad4b3f58556 rename PubkeyList to SignKeyList for clarity
Matt Johnston <matt@ucc.asn.au>
parents: 57
diff changeset
98 struct SignKeyList;
aad4b3f58556 rename PubkeyList to SignKeyList for clarity
Matt Johnston <matt@ucc.asn.au>
parents: 57
diff changeset
99 /* A singly linked list of signing keys */
aad4b3f58556 rename PubkeyList to SignKeyList for clarity
Matt Johnston <matt@ucc.asn.au>
parents: 57
diff changeset
100 struct SignKeyList {
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
101
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
102 sign_key *key;
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
103 int type; /* The type of key */
215
aad4b3f58556 rename PubkeyList to SignKeyList for clarity
Matt Johnston <matt@ucc.asn.au>
parents: 57
diff changeset
104 struct SignKeyList *next;
45
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
105 /* filename? or the buffer? for encrypted keys, so we can later get
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
106 * the private key portion */
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
107
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
108 };
9ee8996a375f Pubkey auth is mostly there for the client. Something strange with
Matt Johnston <matt@ucc.asn.au>
parents: 43
diff changeset
109
4
fe6bca95afa7 Makefile.in contains updated files required
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110 #endif /* _AUTH_H_ */