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bcbf86ec | 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. | |
8abcdba4 | 23 | * |
15853e93 | 24 | * $OpenBSD: auth.h,v 1.11 2001/02/12 16:16:23 markus Exp $ |
bcbf86ec | 25 | */ |
7368a6c8 | 26 | #ifndef AUTH_H |
27 | #define AUTH_H | |
28 | ||
42f11eb2 | 29 | #include <openssl/rsa.h> |
30 | ||
94ec8c6b | 31 | typedef struct Authctxt Authctxt; |
32 | struct Authctxt { | |
33 | int success; | |
59c97189 | 34 | int postponed; |
94ec8c6b | 35 | int valid; |
36 | int attempt; | |
8abcdba4 | 37 | int failures; |
94ec8c6b | 38 | char *user; |
39 | char *service; | |
40 | struct passwd *pw; | |
59c97189 | 41 | char *style; |
94ec8c6b | 42 | }; |
43 | ||
42f11eb2 | 44 | /* |
45 | * Tries to authenticate the user using the .rhosts file. Returns true if | |
46 | * authentication succeeds. If ignore_rhosts is non-zero, this will not | |
47 | * consider .rhosts and .shosts (/etc/hosts.equiv will still be used). | |
48 | */ | |
49 | int auth_rhosts(struct passwd * pw, const char *client_user); | |
50 | ||
51 | /* | |
52 | * Tries to authenticate the user using the .rhosts file and the host using | |
53 | * its host key. Returns true if authentication succeeds. | |
54 | */ | |
55 | int | |
56 | auth_rhosts_rsa(struct passwd * pw, const char *client_user, RSA* client_host_key); | |
57 | ||
58 | /* | |
59 | * Tries to authenticate the user using password. Returns true if | |
60 | * authentication succeeds. | |
61 | */ | |
62 | int auth_password(struct passwd * pw, const char *password); | |
63 | ||
64 | /* | |
65 | * Performs the RSA authentication dialog with the client. This returns 0 if | |
66 | * the client could not be authenticated, and 1 if authentication was | |
67 | * successful. This may exit if there is a serious protocol violation. | |
68 | */ | |
69 | int auth_rsa(struct passwd * pw, BIGNUM * client_n); | |
70 | ||
71 | /* | |
72 | * Parses an RSA key (number of bits, e, n) from a string. Moves the pointer | |
73 | * over the key. Skips any whitespace at the beginning and at end. | |
74 | */ | |
75 | int auth_rsa_read_key(char **cpp, u_int *bitsp, BIGNUM * e, BIGNUM * n); | |
76 | ||
77 | /* | |
78 | * Performs the RSA authentication challenge-response dialog with the client, | |
79 | * and returns true (non-zero) if the client gave the correct answer to our | |
80 | * challenge; returns zero if the client gives a wrong answer. | |
81 | */ | |
82 | int auth_rsa_challenge_dialog(RSA *pk); | |
83 | ||
84 | #ifdef KRB4 | |
85 | #include <krb.h> | |
86 | /* | |
87 | * Performs Kerberos v4 mutual authentication with the client. This returns 0 | |
88 | * if the client could not be authenticated, and 1 if authentication was | |
89 | * successful. This may exit if there is a serious protocol violation. | |
90 | */ | |
91 | int auth_krb4(const char *server_user, KTEXT auth, char **client); | |
92 | int krb4_init(uid_t uid); | |
93 | void krb4_cleanup_proc(void *ignore); | |
94 | int auth_krb4_password(struct passwd * pw, const char *password); | |
95 | ||
96 | #ifdef AFS | |
97 | #include <kafs.h> | |
98 | ||
99 | /* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */ | |
100 | int auth_kerberos_tgt(struct passwd * pw, const char *string); | |
101 | int auth_afs_token(struct passwd * pw, const char *token_string); | |
102 | #endif /* AFS */ | |
103 | ||
104 | #endif /* KRB4 */ | |
105 | ||
8c9fe09e | 106 | #include "auth-pam.h" |
107 | #include "auth2-pam.h" | |
108 | ||
7368a6c8 | 109 | void do_authentication(void); |
e78a59f5 | 110 | void do_authentication2(void); |
111 | ||
59c97189 | 112 | Authctxt *authctxt_new(void); |
113 | void auth_log(Authctxt *authctxt, int authenticated, char *method, char *info); | |
94ec8c6b | 114 | void userauth_reply(Authctxt *authctxt, int authenticated); |
15853e93 | 115 | int auth_root_allowed(char *method); |
94ec8c6b | 116 | |
59c97189 | 117 | int auth2_challenge(Authctxt *authctxt, char *devs); |
7368a6c8 | 118 | |
94ec8c6b | 119 | int allowed_user(struct passwd * pw); |
59c97189 | 120 | |
121 | char *get_challenge(Authctxt *authctxt, char *devs); | |
122 | int verify_response(Authctxt *authctxt, char *response); | |
123 | ||
94ec8c6b | 124 | struct passwd * auth_get_user(void); |
59c97189 | 125 | struct passwd * pwcopy(struct passwd *pw); |
a306f2dd | 126 | |
127 | #define AUTH_FAIL_MAX 6 | |
128 | #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2) | |
129 | #define AUTH_FAIL_MSG "Too many authentication failures for %.100s" | |
130 | ||
7368a6c8 | 131 | #endif |