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1853d1ef | 1 | /* $OpenBSD: auth.h,v 1.34 2002/03/18 17:50:31 provos Exp $ */ |
93c3b6de | 2 | |
bcbf86ec | 3 | /* |
4 | * Copyright (c) 2000 Markus Friedl. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * | |
15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
17 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
18 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
8abcdba4 | 25 | * |
bcbf86ec | 26 | */ |
93c3b6de | 27 | |
7368a6c8 | 28 | #ifndef AUTH_H |
29 | #define AUTH_H | |
30 | ||
d0c8ca5c | 31 | #include "key.h" |
32 | #include "hostfile.h" | |
42f11eb2 | 33 | #include <openssl/rsa.h> |
34 | ||
af774732 | 35 | #ifdef HAVE_LOGIN_CAP |
36 | #include <login_cap.h> | |
37 | #endif | |
38 | #ifdef BSD_AUTH | |
39 | #include <bsd_auth.h> | |
40 | #endif | |
ced49be2 | 41 | #ifdef KRB5 |
42 | #include <krb5.h> | |
43 | #endif | |
af774732 | 44 | |
94ec8c6b | 45 | typedef struct Authctxt Authctxt; |
5ba55ada | 46 | typedef struct KbdintDevice KbdintDevice; |
47 | ||
94ec8c6b | 48 | struct Authctxt { |
ced49be2 | 49 | int success; |
50 | int postponed; | |
51 | int valid; | |
52 | int attempt; | |
53 | int failures; | |
54 | char *user; | |
55 | char *service; | |
56 | struct passwd *pw; | |
57 | char *style; | |
58 | void *kbdintctxt; | |
af774732 | 59 | #ifdef BSD_AUTH |
ced49be2 | 60 | auth_session_t *as; |
61 | #endif | |
62 | #ifdef KRB4 | |
63 | char *krb4_ticket_file; | |
64 | #endif | |
65 | #ifdef KRB5 | |
66 | krb5_context krb5_ctx; | |
67 | krb5_auth_context krb5_auth_ctx; | |
68 | krb5_ccache krb5_fwd_ccache; | |
69 | krb5_principal krb5_user; | |
70 | char *krb5_ticket_file; | |
af774732 | 71 | #endif |
94ec8c6b | 72 | }; |
73 | ||
5ba55ada | 74 | /* |
75 | * Keyboard interactive device: | |
184eed6a | 76 | * init_ctx returns: non NULL upon success |
77 | * query returns: 0 - success, otherwise failure | |
5ba55ada | 78 | * respond returns: 0 - success, 1 - need further interaction, |
79 | * otherwise - failure | |
80 | */ | |
81 | struct KbdintDevice | |
82 | { | |
83 | const char *name; | |
ef2839b9 | 84 | void* (*init_ctx)(Authctxt*); |
d96be24d | 85 | int (*query)(void *ctx, char **name, char **infotxt, |
86 | u_int *numprompts, char ***prompts, u_int **echo_on); | |
ef2839b9 | 87 | int (*respond)(void *ctx, u_int numresp, char **responses); |
88 | void (*free_ctx)(void *ctx); | |
5ba55ada | 89 | }; |
90 | ||
2a1e4639 | 91 | int auth_rhosts(struct passwd *, const char *); |
8002af61 | 92 | int |
2a1e4639 | 93 | auth_rhosts2(struct passwd *, const char *, const char *, const char *); |
8002af61 | 94 | |
3e65880e | 95 | int auth_rhosts_rsa(struct passwd *, char *, Key *); |
255cabd9 | 96 | int auth_password(Authctxt *, const char *); |
97 | int auth_rsa(struct passwd *, BIGNUM *); | |
46f1eece | 98 | int auth_rsa_challenge_dialog(Key *); |
42f11eb2 | 99 | |
100 | #ifdef KRB4 | |
101 | #include <krb.h> | |
ced49be2 | 102 | int auth_krb4(Authctxt *, KTEXT, char **); |
103 | int auth_krb4_password(Authctxt *, const char *); | |
2a1e4639 | 104 | void krb4_cleanup_proc(void *); |
42f11eb2 | 105 | |
106 | #ifdef AFS | |
107 | #include <kafs.h> | |
ced49be2 | 108 | int auth_krb4_tgt(Authctxt *, const char *); |
109 | int auth_afs_token(Authctxt *, const char *); | |
255cabd9 | 110 | #endif /* AFS */ |
42f11eb2 | 111 | |
255cabd9 | 112 | #endif /* KRB4 */ |
42f11eb2 | 113 | |
ced49be2 | 114 | #ifdef KRB5 |
115 | int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client); | |
116 | int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt); | |
117 | int auth_krb5_password(Authctxt *authctxt, const char *password); | |
118 | void krb5_cleanup_proc(void *authctxt); | |
119 | #endif /* KRB5 */ | |
120 | ||
8c9fe09e | 121 | #include "auth-pam.h" |
122 | #include "auth2-pam.h" | |
123 | ||
1b34c1b3 | 124 | Authctxt *do_authentication(void); |
125 | Authctxt *do_authentication2(void); | |
e78a59f5 | 126 | |
59c97189 | 127 | Authctxt *authctxt_new(void); |
2a1e4639 | 128 | void auth_log(Authctxt *, int, char *, char *); |
129 | void userauth_finish(Authctxt *, int, char *); | |
130 | int auth_root_allowed(char *); | |
94ec8c6b | 131 | |
1853d1ef | 132 | void privsep_challenge_enable(void); |
133 | ||
2a1e4639 | 134 | int auth2_challenge(Authctxt *, char *); |
2f293d43 | 135 | void auth2_challenge_stop(Authctxt *); |
7368a6c8 | 136 | |
2a1e4639 | 137 | int allowed_user(struct passwd *); |
443fa1cd | 138 | struct passwd * getpwnamallow(const char *user); |
59c97189 | 139 | |
2a1e4639 | 140 | char *get_challenge(Authctxt *); |
141 | int verify_response(Authctxt *, const char *); | |
59c97189 | 142 | |
94ec8c6b | 143 | struct passwd * auth_get_user(void); |
a306f2dd | 144 | |
2a1e4639 | 145 | char *expand_filename(const char *, struct passwd *); |
146 | char *authorized_keys_file(struct passwd *); | |
147 | char *authorized_keys_file2(struct passwd *); | |
c8445989 | 148 | |
c8445989 | 149 | int |
2a1e4639 | 150 | secure_filename(FILE *, const char *, struct passwd *, char *, size_t); |
c8445989 | 151 | |
d0c8ca5c | 152 | HostStatus |
2a1e4639 | 153 | check_key_in_hostfiles(struct passwd *, Key *, const char *, |
154 | const char *, const char *); | |
d0c8ca5c | 155 | |
a306f2dd | 156 | #define AUTH_FAIL_MAX 6 |
157 | #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2) | |
158 | #define AUTH_FAIL_MSG "Too many authentication failures for %.100s" | |
159 | ||
1853d1ef | 160 | #define SKEY_PROMPT "\nS/Key Password: " |
7368a6c8 | 161 | #endif |