Annotation of src/usr.bin/ssh/auth.h, Revision 1.35.2.1
1.35.2.1! jason 1: /* $OpenBSD: auth.h,v 1.37 2002/05/13 20:44:58 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:
1.35 markus 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 *);
1.35 markus 99: BIGNUM *auth_rsa_generate_challenge(Key *);
100: int auth_rsa_verify_response(Key *, BIGNUM *, u_char[]);
101: int auth_rsa_key_allowed(struct passwd *, BIGNUM *, Key **);
102:
103: int auth_rhosts_rsa_key_allowed(struct passwd *, char *, char *, Key *);
104: int hostbased_key_allowed(struct passwd *, const char *, char *, Key *);
105: int user_key_allowed(struct passwd *, Key *);
1.10 markus 106:
107: #ifdef KRB4
108: #include <krb.h>
1.21 dugsong 109: int auth_krb4(Authctxt *, KTEXT, char **);
110: int auth_krb4_password(Authctxt *, const char *);
1.20 itojun 111: void krb4_cleanup_proc(void *);
1.10 markus 112:
113: #ifdef AFS
114: #include <kafs.h>
1.21 dugsong 115: int auth_krb4_tgt(Authctxt *, const char *);
116: int auth_afs_token(Authctxt *, const char *);
1.22 markus 117: #endif /* AFS */
1.10 markus 118:
1.22 markus 119: #endif /* KRB4 */
1.21 dugsong 120:
121: #ifdef KRB5
122: int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client);
123: int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt);
124: int auth_krb5_password(Authctxt *authctxt, const char *password);
125: void krb5_cleanup_proc(void *authctxt);
126: #endif /* KRB5 */
1.6 markus 127:
1.33 provos 128: Authctxt *do_authentication(void);
129: Authctxt *do_authentication2(void);
1.2 markus 130:
1.9 markus 131: Authctxt *authctxt_new(void);
1.20 itojun 132: void auth_log(Authctxt *, int, char *, char *);
133: void userauth_finish(Authctxt *, int, char *);
134: int auth_root_allowed(char *);
1.6 markus 135:
1.35.2.1! jason 136: char *auth2_read_banner(void);
! 137:
1.34 provos 138: void privsep_challenge_enable(void);
139:
1.20 itojun 140: int auth2_challenge(Authctxt *, char *);
1.23 markus 141: void auth2_challenge_stop(Authctxt *);
1.35 markus 142: int bsdauth_query(void *, char **, char **, u_int *, char ***, u_int **);
143: int bsdauth_respond(void *, u_int, char **);
144: int skey_query(void *, char **, char **, u_int *, char ***, u_int **);
145: int skey_respond(void *, u_int, char **);
1.1 markus 146:
1.20 itojun 147: int allowed_user(struct passwd *);
1.32 provos 148: struct passwd * getpwnamallow(const char *user);
1.9 markus 149:
1.20 itojun 150: char *get_challenge(Authctxt *);
151: int verify_response(Authctxt *, const char *);
1.9 markus 152:
1.6 markus 153: struct passwd * auth_get_user(void);
1.17 markus 154:
1.20 itojun 155: char *expand_filename(const char *, struct passwd *);
156: char *authorized_keys_file(struct passwd *);
157: char *authorized_keys_file2(struct passwd *);
1.17 markus 158:
159: int
1.20 itojun 160: secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
1.18 markus 161:
162: HostStatus
1.20 itojun 163: check_key_in_hostfiles(struct passwd *, Key *, const char *,
164: const char *, const char *);
1.35 markus 165:
166: /* hostkey handling */
167: Key *get_hostkey_by_index(int);
168: Key *get_hostkey_by_type(int);
169: int get_hostkey_index(Key *);
170: int ssh1_session_key(BIGNUM *);
1.35.2.1! jason 171:
! 172: /* debug messages during authentication */
! 173: void auth_debug_add(const char *fmt,...) __attribute__((format(printf, 1, 2)));
! 174: void auth_debug_send(void);
! 175: void auth_debug_reset(void);
1.3 markus 176:
177: #define AUTH_FAIL_MAX 6
178: #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2)
179: #define AUTH_FAIL_MSG "Too many authentication failures for %.100s"
180:
1.34 provos 181: #define SKEY_PROMPT "\nS/Key Password: "
1.1 markus 182: #endif
![[BACK]](/icons/back.gif){kind=icon}
Return to auth.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh