Annotation of src/usr.bin/ssh/auth.h, Revision 1.27
1.5 deraadt 1: /*
2: * Copyright (c) 2000 Markus Friedl. All rights reserved.
3: *
4: * Redistribution and use in source and binary forms, with or without
5: * modification, are permitted provided that the following conditions
6: * are met:
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.
12: *
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.
1.7 djm 23: *
1.27 ! millert 24: * $OpenBSD: auth.h,v 1.26 2001/12/27 19:54:53 markus Exp $
1.5 deraadt 25: */
1.1 markus 26: #ifndef AUTH_H
27: #define AUTH_H
28:
1.18 markus 29: #include "key.h"
30: #include "hostfile.h"
1.10 markus 31: #include <openssl/rsa.h>
32:
1.13 markus 33: #ifdef HAVE_LOGIN_CAP
34: #include <login_cap.h>
35: #endif
36: #ifdef BSD_AUTH
37: #include <bsd_auth.h>
38: #endif
1.21 dugsong 39: #ifdef KRB5
40: #include <krb5.h>
41: #endif
1.13 markus 42:
1.6 markus 43: typedef struct Authctxt Authctxt;
1.16 markus 44: typedef struct KbdintDevice KbdintDevice;
45:
1.6 markus 46: struct Authctxt {
1.21 dugsong 47: int success;
48: int postponed;
49: int valid;
50: int attempt;
51: int failures;
52: char *user;
53: char *service;
54: struct passwd *pw;
55: char *style;
56: void *kbdintctxt;
1.13 markus 57: #ifdef BSD_AUTH
1.21 dugsong 58: auth_session_t *as;
59: #endif
60: #ifdef KRB4
61: char *krb4_ticket_file;
62: #endif
63: #ifdef KRB5
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;
1.13 markus 69: #endif
1.6 markus 70: };
1.10 markus 71:
72: /*
1.16 markus 73: * Keyboard interactive device:
1.25 deraadt 74: * init_ctx returns: non NULL upon success
75: * query returns: 0 - success, otherwise failure
1.16 markus 76: * respond returns: 0 - success, 1 - need further interaction,
77: * otherwise - failure
78: */
79: struct KbdintDevice
80: {
81: const char *name;
1.27 ! millert 82: void* (*init_ctx)(Authctxt*);
1.16 markus 83: int (*query) __P((void *ctx, char **name, char **infotxt,
84: u_int *numprompts, char ***prompts,
85: u_int **echo_on));
1.27 ! millert 86: int (*respond)(void *ctx, u_int numresp, char **responses);
! 87: void (*free_ctx)(void *ctx);
1.16 markus 88: };
89:
1.20 itojun 90: int auth_rhosts(struct passwd *, const char *);
1.15 markus 91: int
1.20 itojun 92: auth_rhosts2(struct passwd *, const char *, const char *, const char *);
1.10 markus 93:
1.26 markus 94: int auth_rhosts_rsa(struct passwd *, const char *, Key *);
1.22 markus 95: int auth_password(Authctxt *, const char *);
96: int auth_rsa(struct passwd *, BIGNUM *);
97: int auth_rsa_challenge_dialog(RSA *);
1.10 markus 98:
99: #ifdef KRB4
100: #include <krb.h>
1.21 dugsong 101: int auth_krb4(Authctxt *, KTEXT, char **);
102: int auth_krb4_password(Authctxt *, const char *);
1.20 itojun 103: void krb4_cleanup_proc(void *);
1.10 markus 104:
105: #ifdef AFS
106: #include <kafs.h>
1.21 dugsong 107: int auth_krb4_tgt(Authctxt *, const char *);
108: int auth_afs_token(Authctxt *, const char *);
1.22 markus 109: #endif /* AFS */
1.10 markus 110:
1.22 markus 111: #endif /* KRB4 */
1.21 dugsong 112:
113: #ifdef KRB5
114: int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client);
115: int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt);
116: int auth_krb5_password(Authctxt *authctxt, const char *password);
117: void krb5_cleanup_proc(void *authctxt);
118: #endif /* KRB5 */
1.6 markus 119:
1.1 markus 120: void do_authentication(void);
1.2 markus 121: void do_authentication2(void);
122:
1.9 markus 123: Authctxt *authctxt_new(void);
1.20 itojun 124: void auth_log(Authctxt *, int, char *, char *);
125: void userauth_finish(Authctxt *, int, char *);
126: int auth_root_allowed(char *);
1.6 markus 127:
1.20 itojun 128: int auth2_challenge(Authctxt *, char *);
1.23 markus 129: void auth2_challenge_stop(Authctxt *);
1.1 markus 130:
1.20 itojun 131: int allowed_user(struct passwd *);
1.9 markus 132:
1.20 itojun 133: char *get_challenge(Authctxt *);
134: int verify_response(Authctxt *, const char *);
1.9 markus 135:
1.6 markus 136: struct passwd * auth_get_user(void);
1.17 markus 137:
1.20 itojun 138: char *expand_filename(const char *, struct passwd *);
139: char *authorized_keys_file(struct passwd *);
140: char *authorized_keys_file2(struct passwd *);
1.17 markus 141:
142: int
1.20 itojun 143: secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
1.18 markus 144:
145: HostStatus
1.20 itojun 146: check_key_in_hostfiles(struct passwd *, Key *, const char *,
147: const char *, const char *);
1.3 markus 148:
149: #define AUTH_FAIL_MAX 6
150: #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
151: #define AUTH_FAIL_MSG "Too many authentication failures for %.100s"
152:
1.1 markus 153: #endif
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