| 1 | /*
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| 2 | * Copyright (c) Andrew Tridgell <tridge@samba.org> 2000
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| 3 | * Copyright (c) Tim Potter <tpot@samba.org> 2000
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| 4 | * Copyright (c) Andrew Bartlettt <abartlet@samba.org> 2002
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| 5 | * Copyright (c) Guenther Deschner <gd@samba.org> 2005-2008
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| 6 | * Copyright (c) Jan Rêkorajski 1999.
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| 7 | * Copyright (c) Andrew G. Morgan 1996-8.
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| 8 | * Copyright (c) Alex O. Yuriev, 1996.
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| 9 | * Copyright (c) Cristian Gafton 1996.
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| 10 | * Copyright (C) Elliot Lee <sopwith@redhat.com> 1996, Red Hat Software.
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| 11 | *
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| 12 | * Redistribution and use in source and binary forms, with or without
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| 13 | * modification, are permitted provided that the following conditions
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| 14 | * are met:
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| 15 | * 1. Redistributions of source code must retain the above copyright
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| 16 | * notice, and the entire permission notice in its entirety,
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| 17 | * including the disclaimer of warranties.
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| 18 | * 2. Redistributions in binary form must reproduce the above copyright
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| 19 | * notice, this list of conditions and the following disclaimer in the
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| 20 | * documentation and/or other materials provided with the distribution.
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| 21 | * 3. The name of the author may not be used to endorse or promote
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| 22 | * products derived from this software without specific prior
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| 23 | * written permission.
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| 24 | *
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| 25 | * ALTERNATIVELY, this product may be distributed under the terms of
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| 26 | * the GNU Public License, in which case the provisions of the GPL are
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| 27 | * required INSTEAD OF the above restrictions. (This clause is
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| 28 | * necessary due to a potential bad interaction between the GPL and
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| 29 | * the restrictions contained in a BSD-style copyright.)
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| 30 | *
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| 31 | * THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED
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| 32 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 33 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 34 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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| 35 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 36 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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| 37 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 40 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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| 41 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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| 42 | */
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| 43 |
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| 44 | /* pam_winbind header file
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| 45 | (Solaris needs some macros from Linux for common PAM code)
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| 46 |
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| 47 | Shirish Kalele 2000
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| 48 | */
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| 49 |
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| 50 | #ifndef _NSSWITCH_PAM_WINBIND_H_
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| 51 | #define _NSSWITCH_PAM_WINBIND_H_
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| 52 |
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| 53 | #include "../lib/replace/replace.h"
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| 54 | #include "system/syslog.h"
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| 55 | #include "system/time.h"
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| 56 | #include <talloc.h>
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| 57 | #include "libwbclient/wbclient.h"
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| 58 |
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| 59 | #define MODULE_NAME "pam_winbind"
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| 60 | #define PAM_SM_AUTH
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| 61 | #define PAM_SM_ACCOUNT
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| 62 | #define PAM_SM_PASSWORD
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| 63 | #define PAM_SM_SESSION
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| 64 |
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| 65 | #ifndef PAM_WINBIND_CONFIG_FILE
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| 66 | #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
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| 67 | #endif
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| 68 |
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| 69 | #include <iniparser.h>
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| 70 |
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| 71 | #ifdef HAVE_LIBINTL_H
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| 72 | #include <libintl.h>
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| 73 | #endif
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| 74 |
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| 75 | #if defined(LINUX)
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| 76 |
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| 77 | /* newer versions of PAM have this in _pam_compat.h */
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| 78 | #ifndef PAM_AUTHTOK_RECOVERY_ERR
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| 79 | #define PAM_AUTHTOK_RECOVERY_ERR PAM_AUTHTOK_RECOVER_ERR
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| 80 | #endif
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| 81 |
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| 82 | #else /* !LINUX */
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| 83 |
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| 84 | /* Solaris always uses dynamic pam modules */
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| 85 | #define PAM_EXTERN extern
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| 86 | #if defined(HAVE_SECURITY_PAM_APPL_H)
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| 87 | #include <security/pam_appl.h>
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| 88 | #elif defined(HAVE_PAM_PAM_APPL_H)
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| 89 | #include <pam/pam_appl.h>
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| 90 | #endif
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| 91 |
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| 92 | #ifndef PAM_AUTHTOK_RECOVER_ERR
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| 93 | #define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
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| 94 | #endif
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| 95 |
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| 96 | #endif /* defined(SUNOS5) || defined(SUNOS4) || defined(HPUX) || defined(FREEBSD) || defined(AIX) */
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| 97 |
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| 98 | #if defined(HAVE_SECURITY_PAM_MODULES_H)
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| 99 | #include <security/pam_modules.h>
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| 100 | #elif defined(HAVE_PAM_PAM_MODULES_H)
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| 101 | #include <pam/pam_modules.h>
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| 102 | #endif
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| 103 |
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| 104 | #if defined(HAVE_SECURITY__PAM_MACROS_H)
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| 105 | #include <security/_pam_macros.h>
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| 106 | #elif defined(HAVE_PAM__PAM_MACROS_H)
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| 107 | #include <pam/_pam_macros.h>
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| 108 | #else
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| 109 | /* Define required macros from (Linux PAM 0.68) security/_pam_macros.h */
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| 110 | #define _pam_drop_reply(/* struct pam_response * */ reply, /* int */ replies) \
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| 111 | do { \
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| 112 | int reply_i; \
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| 113 | \
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| 114 | for (reply_i=0; reply_i<replies; ++reply_i) { \
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| 115 | if (reply[reply_i].resp) { \
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| 116 | _pam_overwrite(reply[reply_i].resp); \
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| 117 | free(reply[reply_i].resp); \
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| 118 | } \
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| 119 | } \
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| 120 | if (reply) \
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| 121 | free(reply); \
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| 122 | } while (0)
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| 123 |
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| 124 | #define _pam_overwrite(x) \
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| 125 | do { \
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| 126 | register char *__xx__; \
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| 127 | if ((__xx__=(x))) \
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| 128 | while (*__xx__) \
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| 129 | *__xx__++ = '\0'; \
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| 130 | } while (0)
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| 131 |
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| 132 | /*
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| 133 | * Don't just free it, forget it too.
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| 134 | */
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| 135 |
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| 136 | #define _pam_drop(X) SAFE_FREE(X)
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| 137 |
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| 138 | #define x_strdup(s) ( (s) ? strdup(s):NULL )
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| 139 | #endif /* HAVE_SECURITY__PAM_MACROS_H */
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| 140 |
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| 141 | #ifdef HAVE_SECURITY_PAM_EXT_H
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| 142 | #include <security/pam_ext.h>
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| 143 | #endif
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| 144 |
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| 145 | #define WINBIND_DEBUG_ARG 0x00000001
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| 146 | #define WINBIND_USE_AUTHTOK_ARG 0x00000002
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| 147 | #define WINBIND_UNKNOWN_OK_ARG 0x00000004
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| 148 | #define WINBIND_TRY_FIRST_PASS_ARG 0x00000008
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| 149 | #define WINBIND_USE_FIRST_PASS_ARG 0x00000010
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| 150 | #define WINBIND__OLD_PASSWORD 0x00000020
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| 151 | #define WINBIND_REQUIRED_MEMBERSHIP 0x00000040
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| 152 | #define WINBIND_KRB5_AUTH 0x00000080
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| 153 | #define WINBIND_KRB5_CCACHE_TYPE 0x00000100
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| 154 | #define WINBIND_CACHED_LOGIN 0x00000200
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| 155 | #define WINBIND_CONFIG_FILE 0x00000400
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| 156 | #define WINBIND_SILENT 0x00000800
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| 157 | #define WINBIND_DEBUG_STATE 0x00001000
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| 158 | #define WINBIND_WARN_PWD_EXPIRE 0x00002000
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| 159 | #define WINBIND_MKHOMEDIR 0x00004000
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| 160 |
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| 161 | #if defined(HAVE_GETTEXT) && !defined(__LCLINT__)
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| 162 | #define _(string) dgettext(MODULE_NAME, string)
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| 163 | #else
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| 164 | #define _(string) string
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| 165 | #endif
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| 166 |
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| 167 | #define N_(string) string
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| 168 |
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| 169 | /*
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| 170 | * here is the string to inform the user that the new passwords they
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| 171 | * typed were not the same.
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| 172 | */
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| 173 |
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| 174 | #define MISTYPED_PASS _("Sorry, passwords do not match")
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| 175 |
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| 176 | #define on(x, y) (x & y)
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| 177 | #define off(x, y) (!(x & y))
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| 178 |
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| 179 | #define PAM_WINBIND_NEW_AUTHTOK_REQD "PAM_WINBIND_NEW_AUTHTOK_REQD"
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| 180 | #define PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH "PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH"
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| 181 | #define PAM_WINBIND_HOMEDIR "PAM_WINBIND_HOMEDIR"
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| 182 | #define PAM_WINBIND_LOGONSCRIPT "PAM_WINBIND_LOGONSCRIPT"
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| 183 | #define PAM_WINBIND_LOGONSERVER "PAM_WINBIND_LOGONSERVER"
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| 184 | #define PAM_WINBIND_PROFILEPATH "PAM_WINBIND_PROFILEPATH"
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| 185 | #define PAM_WINBIND_PWD_LAST_SET "PAM_WINBIND_PWD_LAST_SET"
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| 186 |
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| 187 | #define SECONDS_PER_DAY 86400
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| 188 |
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| 189 | #define DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES 14
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| 190 |
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| 191 | #include "winbind_client.h"
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| 192 |
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| 193 | #define PAM_WB_REMARK_DIRECT(c,x)\
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| 194 | {\
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| 195 | const char *error_string = NULL; \
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| 196 | error_string = _get_ntstatus_error_string(x);\
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| 197 | if (error_string != NULL) {\
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| 198 | _make_remark(c, PAM_ERROR_MSG, error_string);\
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| 199 | } else {\
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| 200 | _make_remark(c, PAM_ERROR_MSG, x);\
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| 201 | };\
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| 202 | };
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| 203 |
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| 204 | #define LOGON_KRB5_FAIL_CLOCK_SKEW 0x02000000
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| 205 |
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| 206 | #define PAM_WB_CACHED_LOGON(x) (x & WBC_AUTH_USER_INFO_CACHED_ACCOUNT)
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| 207 | #define PAM_WB_KRB5_CLOCK_SKEW(x) (x & LOGON_KRB5_FAIL_CLOCK_SKEW)
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| 208 | #define PAM_WB_GRACE_LOGON(x) ((WBC_AUTH_USER_INFO_CACHED_ACCOUNT|WBC_AUTH_USER_INFO_GRACE_LOGON) == ( x & (WBC_AUTH_USER_INFO_CACHED_ACCOUNT|WBC_AUTH_USER_INFO_GRACE_LOGON)))
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| 209 |
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| 210 | struct pwb_context {
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| 211 | pam_handle_t *pamh;
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| 212 | int flags;
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| 213 | int argc;
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| 214 | const char **argv;
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| 215 | dictionary *dict;
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| 216 | uint32_t ctrl;
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| 217 | };
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| 218 |
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| 219 | #ifndef TALLOC_FREE
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| 220 | #define TALLOC_FREE(ctx) do { talloc_free(ctx); ctx=NULL; } while(0)
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| 221 | #endif
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| 222 | #define TALLOC_ZERO_P(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
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| 223 | #define TALLOC_P(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)
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| 224 |
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| 225 | #endif /* _NSSWITCH_PAM_WINBIND_H_ */
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