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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 | * |
8002af61 | 24 | * $OpenBSD: auth.h,v 1.15 2001/04/12 19:15:24 markus Exp $ |
bcbf86ec | 25 | */ |
7368a6c8 | 26 | #ifndef AUTH_H |
27 | #define AUTH_H | |
28 | ||
42f11eb2 | 29 | #include <openssl/rsa.h> |
30 | ||
af774732 | 31 | #ifdef HAVE_LOGIN_CAP |
32 | #include <login_cap.h> | |
33 | #endif | |
34 | #ifdef BSD_AUTH | |
35 | #include <bsd_auth.h> | |
36 | #endif | |
37 | ||
94ec8c6b | 38 | typedef struct Authctxt Authctxt; |
39 | struct Authctxt { | |
40 | int success; | |
59c97189 | 41 | int postponed; |
94ec8c6b | 42 | int valid; |
43 | int attempt; | |
8abcdba4 | 44 | int failures; |
94ec8c6b | 45 | char *user; |
46 | char *service; | |
47 | struct passwd *pw; | |
59c97189 | 48 | char *style; |
af774732 | 49 | #ifdef BSD_AUTH |
50 | auth_session_t *as; | |
51 | #endif | |
94ec8c6b | 52 | }; |
53 | ||
42f11eb2 | 54 | /* |
55 | * Tries to authenticate the user using the .rhosts file. Returns true if | |
56 | * authentication succeeds. If ignore_rhosts is non-zero, this will not | |
57 | * consider .rhosts and .shosts (/etc/hosts.equiv will still be used). | |
58 | */ | |
59 | int auth_rhosts(struct passwd * pw, const char *client_user); | |
60 | ||
8002af61 | 61 | /* extended interface similar to auth_rhosts() */ |
62 | int | |
63 | auth_rhosts2(struct passwd *pw, const char *client_user, const char *hostname, | |
64 | const char *ipaddr); | |
65 | ||
42f11eb2 | 66 | /* |
67 | * Tries to authenticate the user using the .rhosts file and the host using | |
68 | * its host key. Returns true if authentication succeeds. | |
69 | */ | |
70 | int | |
71 | auth_rhosts_rsa(struct passwd * pw, const char *client_user, RSA* client_host_key); | |
72 | ||
73 | /* | |
74 | * Tries to authenticate the user using password. Returns true if | |
75 | * authentication succeeds. | |
76 | */ | |
af774732 | 77 | int auth_password(Authctxt *authctxt, const char *password); |
42f11eb2 | 78 | |
79 | /* | |
80 | * Performs the RSA authentication dialog with the client. This returns 0 if | |
81 | * the client could not be authenticated, and 1 if authentication was | |
82 | * successful. This may exit if there is a serious protocol violation. | |
83 | */ | |
84 | int auth_rsa(struct passwd * pw, BIGNUM * client_n); | |
85 | ||
86 | /* | |
87 | * Parses an RSA key (number of bits, e, n) from a string. Moves the pointer | |
88 | * over the key. Skips any whitespace at the beginning and at end. | |
89 | */ | |
90 | int auth_rsa_read_key(char **cpp, u_int *bitsp, BIGNUM * e, BIGNUM * n); | |
91 | ||
92 | /* | |
93 | * Performs the RSA authentication challenge-response dialog with the client, | |
94 | * and returns true (non-zero) if the client gave the correct answer to our | |
95 | * challenge; returns zero if the client gives a wrong answer. | |
96 | */ | |
97 | int auth_rsa_challenge_dialog(RSA *pk); | |
98 | ||
99 | #ifdef KRB4 | |
100 | #include <krb.h> | |
101 | /* | |
102 | * Performs Kerberos v4 mutual authentication with the client. This returns 0 | |
103 | * if the client could not be authenticated, and 1 if authentication was | |
104 | * successful. This may exit if there is a serious protocol violation. | |
105 | */ | |
106 | int auth_krb4(const char *server_user, KTEXT auth, char **client); | |
107 | int krb4_init(uid_t uid); | |
108 | void krb4_cleanup_proc(void *ignore); | |
109 | int auth_krb4_password(struct passwd * pw, const char *password); | |
110 | ||
111 | #ifdef AFS | |
112 | #include <kafs.h> | |
113 | ||
114 | /* Accept passed Kerberos v4 ticket-granting ticket and AFS tokens. */ | |
115 | int auth_kerberos_tgt(struct passwd * pw, const char *string); | |
116 | int auth_afs_token(struct passwd * pw, const char *token_string); | |
117 | #endif /* AFS */ | |
118 | ||
119 | #endif /* KRB4 */ | |
120 | ||
8c9fe09e | 121 | #include "auth-pam.h" |
122 | #include "auth2-pam.h" | |
123 | ||
7368a6c8 | 124 | void do_authentication(void); |
e78a59f5 | 125 | void do_authentication2(void); |
126 | ||
59c97189 | 127 | Authctxt *authctxt_new(void); |
128 | void auth_log(Authctxt *authctxt, int authenticated, char *method, char *info); | |
d9cd3575 | 129 | void userauth_finish(Authctxt *authctxt, int authenticated, char *method); |
15853e93 | 130 | int auth_root_allowed(char *method); |
94ec8c6b | 131 | |
59c97189 | 132 | int auth2_challenge(Authctxt *authctxt, char *devs); |
7368a6c8 | 133 | |
94ec8c6b | 134 | int allowed_user(struct passwd * pw); |
59c97189 | 135 | |
136 | char *get_challenge(Authctxt *authctxt, char *devs); | |
137 | int verify_response(Authctxt *authctxt, char *response); | |
138 | ||
94ec8c6b | 139 | struct passwd * auth_get_user(void); |
a306f2dd | 140 | |
141 | #define AUTH_FAIL_MAX 6 | |
142 | #define AUTH_FAIL_LOG (AUTH_FAIL_MAX/2) | |
143 | #define AUTH_FAIL_MSG "Too many authentication failures for %.100s" | |
144 | ||
7368a6c8 | 145 | #endif |