Annotation of src/usr.bin/ssh/auth.h, Revision 1.7.2.5
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: *
1.7.2.5 ! miod 24: * $OpenBSD: auth.h,v 1.22 2001/06/26 17:27:22 markus Exp $
1.5 deraadt 25: */
1.1 markus 26: #ifndef AUTH_H
27: #define AUTH_H
28:
1.7.2.5 ! miod 29: #include "key.h"
! 30: #include "hostfile.h"
1.7.2.1 jason 31: #include <openssl/rsa.h>
32:
1.7.2.4 jason 33: #ifdef HAVE_LOGIN_CAP
34: #include <login_cap.h>
35: #endif
36: #ifdef BSD_AUTH
37: #include <bsd_auth.h>
38: #endif
1.7.2.5 ! miod 39: #ifdef KRB5
! 40: #include <krb5.h>
! 41: #endif
1.7.2.4 jason 42:
1.6 markus 43: typedef struct Authctxt Authctxt;
1.7.2.5 ! miod 44: typedef struct KbdintDevice KbdintDevice;
! 45:
1.6 markus 46: struct Authctxt {
1.7.2.5 ! miod 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;
1.7.2.4 jason 57: #ifdef BSD_AUTH
1.7.2.5 ! miod 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;
1.7.2.4 jason 69: #endif
1.6 markus 70: };
71:
1.7.2.1 jason 72: /*
1.7.2.5 ! miod 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,
! 77: * otherwise - failure
! 78: */
! 79: struct KbdintDevice
! 80: {
! 81: const char *name;
! 82: void* (*init_ctx) __P((Authctxt*));
! 83: int (*query) __P((void *ctx, char **name, char **infotxt,
! 84: u_int *numprompts, char ***prompts,
! 85: u_int **echo_on));
! 86: int (*respond) __P((void *ctx, u_int numresp, char **responses));
! 87: void (*free_ctx) __P((void *ctx));
! 88: };
1.7.2.4 jason 89:
1.7.2.5 ! miod 90: int auth_rhosts(struct passwd *, const char *);
1.7.2.1 jason 91: int
1.7.2.5 ! miod 92: auth_rhosts2(struct passwd *, const char *, const char *, const char *);
1.7.2.1 jason 93:
1.7.2.5 ! miod 94: int auth_rhosts_rsa(struct passwd *, const char *, RSA *);
! 95: int auth_password(Authctxt *, const char *);
! 96: int auth_rsa(struct passwd *, BIGNUM *);
! 97: int auth_rsa_read_key(char **, u_int *, BIGNUM *, BIGNUM *);
! 98: int auth_rsa_challenge_dialog(RSA *);
1.7.2.1 jason 99:
100: #ifdef KRB4
101: #include <krb.h>
1.7.2.5 ! miod 102: int auth_krb4(Authctxt *, KTEXT, char **);
! 103: int auth_krb4_password(Authctxt *, const char *);
! 104: void krb4_cleanup_proc(void *);
1.7.2.1 jason 105:
106: #ifdef AFS
107: #include <kafs.h>
1.7.2.5 ! miod 108: int auth_krb4_tgt(Authctxt *, const char *);
! 109: int auth_afs_token(Authctxt *, const char *);
! 110: #endif /* AFS */
! 111:
! 112: #endif /* KRB4 */
! 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 */
1.7.2.1 jason 120:
1.1 markus 121: void do_authentication(void);
1.2 markus 122: void do_authentication2(void);
123:
1.7.2.1 jason 124: Authctxt *authctxt_new(void);
1.7.2.5 ! miod 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:
1.7.2.5 ! miod 129: int auth2_challenge(Authctxt *, char *);
1.1 markus 130:
1.7.2.5 ! miod 131: int allowed_user(struct passwd *);
1.7.2.1 jason 132:
1.7.2.5 ! miod 133: char *get_challenge(Authctxt *);
! 134: int verify_response(Authctxt *, const char *);
1.7.2.1 jason 135:
1.6 markus 136: struct passwd * auth_get_user(void);
1.7.2.5 ! miod 137:
! 138: char *expand_filename(const char *, struct passwd *);
! 139: char *authorized_keys_file(struct passwd *);
! 140: char *authorized_keys_file2(struct passwd *);
! 141:
! 142: int
! 143: secure_filename(FILE *, const char *, struct passwd *, char *, size_t);
! 144:
! 145: HostStatus
! 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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