Annotation of src/usr.bin/ssh/auth.h, Revision 1.31
1.31 ! markus 1: /* $OpenBSD: auth.h,v 1.30 2002/03/14 16:56:33 markus Exp $ */
1.29 stevesk 2:
1.5 deraadt 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.
1.7 djm 25: *
1.5 deraadt 26: */
1.29 stevesk 27:
1.1 markus 28: #ifndef AUTH_H
29: #define AUTH_H
30:
1.18 markus 31: #include "key.h"
32: #include "hostfile.h"
1.10 markus 33: #include <openssl/rsa.h>
34:
1.13 markus 35: #ifdef HAVE_LOGIN_CAP
36: #include <login_cap.h>
37: #endif
38: #ifdef BSD_AUTH
39: #include <bsd_auth.h>
40: #endif
1.21 dugsong 41: #ifdef KRB5
42: #include <krb5.h>
43: #endif
1.13 markus 44:
1.6 markus 45: typedef struct Authctxt Authctxt;
1.16 markus 46: typedef struct KbdintDevice KbdintDevice;
47:
1.6 markus 48: struct Authctxt {
1.21 dugsong 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;
1.13 markus 59: #ifdef BSD_AUTH
1.21 dugsong 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;
1.13 markus 71: #endif
1.6 markus 72: };
1.10 markus 73:
74: /*
1.16 markus 75: * Keyboard interactive device:
1.25 deraadt 76: * init_ctx returns: non NULL upon success
77: * query returns: 0 - success, otherwise failure
1.16 markus 78: * respond returns: 0 - success, 1 - need further interaction,
79: * otherwise - failure
80: */
81: struct KbdintDevice
82: {
83: const char *name;
1.27 millert 84: void* (*init_ctx)(Authctxt*);
1.28 millert 85: int (*query)(void *ctx, char **name, char **infotxt,
86: u_int *numprompts, char ***prompts, u_int **echo_on);
1.27 millert 87: int (*respond)(void *ctx, u_int numresp, char **responses);
88: void (*free_ctx)(void *ctx);
1.16 markus 89: };
90:
1.20 itojun 91: int auth_rhosts(struct passwd *, const char *);
1.15 markus 92: int
1.20 itojun 93: auth_rhosts2(struct passwd *, const char *, const char *, const char *);
1.10 markus 94:
1.31 ! markus 95: int auth_rhosts_rsa(struct passwd *, char *, Key *);
1.22 markus 96: int auth_password(Authctxt *, const char *);
97: int auth_rsa(struct passwd *, BIGNUM *);
1.30 markus 98: int auth_rsa_challenge_dialog(Key *);
1.10 markus 99:
100: #ifdef KRB4
101: #include <krb.h>
1.21 dugsong 102: int auth_krb4(Authctxt *, KTEXT, char **);
103: int auth_krb4_password(Authctxt *, const char *);
1.20 itojun 104: void krb4_cleanup_proc(void *);
1.10 markus 105:
106: #ifdef AFS
107: #include <kafs.h>
1.21 dugsong 108: int auth_krb4_tgt(Authctxt *, const char *);
109: int auth_afs_token(Authctxt *, const char *);
1.22 markus 110: #endif /* AFS */
1.10 markus 111:
1.22 markus 112: #endif /* KRB4 */
1.21 dugsong 113:
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 */
1.6 markus 120:
1.1 markus 121: void do_authentication(void);
1.2 markus 122: void do_authentication2(void);
123:
1.9 markus 124: Authctxt *authctxt_new(void);
1.20 itojun 125: void auth_log(Authctxt *, int, char *, char *);
126: void userauth_finish(Authctxt *, int, char *);
127: int auth_root_allowed(char *);
1.6 markus 128:
1.20 itojun 129: int auth2_challenge(Authctxt *, char *);
1.23 markus 130: void auth2_challenge_stop(Authctxt *);
1.1 markus 131:
1.20 itojun 132: int allowed_user(struct passwd *);
1.9 markus 133:
1.20 itojun 134: char *get_challenge(Authctxt *);
135: int verify_response(Authctxt *, const char *);
1.9 markus 136:
1.6 markus 137: struct passwd * auth_get_user(void);
1.17 markus 138:
1.20 itojun 139: char *expand_filename(const char *, struct passwd *);
140: char *authorized_keys_file(struct passwd *);
141: char *authorized_keys_file2(struct passwd *);
1.17 markus 142:
143: int
1.20 itojun 144: secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
1.18 markus 145:
146: HostStatus
1.20 itojun 147: check_key_in_hostfiles(struct passwd *, Key *, const char *,
148: const char *, const char *);
1.3 markus 149:
150: #define AUTH_FAIL_MAX 6
151: #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
152: #define AUTH_FAIL_MSG "Too many authentication failures for %.100s"
153:
1.1 markus 154: #endif
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