2 * Copyright (c) 2000 Markus Friedl. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * $OpenBSD: auth.h,v 1.28 2002/02/17 19:42:32 millert Exp $
31 #include <openssl/rsa.h>
34 #include <login_cap.h>
43 typedef struct Authctxt Authctxt;
44 typedef struct KbdintDevice KbdintDevice;
61 char *krb4_ticket_file;
64 krb5_context krb5_ctx;
65 krb5_auth_context krb5_auth_ctx;
66 krb5_ccache krb5_fwd_ccache;
67 krb5_principal krb5_user;
68 char *krb5_ticket_file;
73 * Keyboard interactive device:
74 * init_ctx returns: non NULL upon success
75 * query returns: 0 - success, otherwise failure
76 * respond returns: 0 - success, 1 - need further interaction,
82 void* (*init_ctx)(Authctxt*);
83 int (*query)(void *ctx, char **name, char **infotxt,
84 u_int *numprompts, char ***prompts, u_int **echo_on);
85 int (*respond)(void *ctx, u_int numresp, char **responses);
86 void (*free_ctx)(void *ctx);
89 int auth_rhosts(struct passwd *, const char *);
91 auth_rhosts2(struct passwd *, const char *, const char *, const char *);
93 int auth_rhosts_rsa(struct passwd *, const char *, Key *);
94 int auth_password(Authctxt *, const char *);
95 int auth_rsa(struct passwd *, BIGNUM *);
96 int auth_rsa_challenge_dialog(RSA *);
100 int auth_krb4(Authctxt *, KTEXT, char **);
101 int auth_krb4_password(Authctxt *, const char *);
102 void krb4_cleanup_proc(void *);
106 int auth_krb4_tgt(Authctxt *, const char *);
107 int auth_afs_token(Authctxt *, const char *);
113 int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client);
114 int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt);
115 int auth_krb5_password(Authctxt *authctxt, const char *password);
116 void krb5_cleanup_proc(void *authctxt);
119 #include "auth-pam.h"
120 #include "auth2-pam.h"
122 void do_authentication(void);
123 void do_authentication2(void);
125 Authctxt *authctxt_new(void);
126 void auth_log(Authctxt *, int, char *, char *);
127 void userauth_finish(Authctxt *, int, char *);
128 int auth_root_allowed(char *);
130 int auth2_challenge(Authctxt *, char *);
131 void auth2_challenge_stop(Authctxt *);
133 int allowed_user(struct passwd *);
135 char *get_challenge(Authctxt *);
136 int verify_response(Authctxt *, const char *);
138 struct passwd * auth_get_user(void);
140 char *expand_filename(const char *, struct passwd *);
141 char *authorized_keys_file(struct passwd *);
142 char *authorized_keys_file2(struct passwd *);
145 secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
148 check_key_in_hostfiles(struct passwd *, Key *, const char *,
149 const char *, const char *);
151 #define AUTH_FAIL_MAX 6
152 #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
153 #define AUTH_FAIL_MSG "Too many authentication failures for %.100s"