cifs.upcall: do a brute-force search for KRB5 credcache
[kai/samba.git] / nsswitch / pam_winbind.h
1 /* pam_winbind header file
2    (Solaris needs some macros from Linux for common PAM code)
3
4    Shirish Kalele 2000
5 */
6
7 #include "../lib/replace/replace.h"
8 #include "system/syslog.h"
9 #include "system/time.h"
10 #include <talloc.h>
11 #include "libwbclient/wbclient.h"
12 #include "localedir.h"
13
14 #define MODULE_NAME "pam_winbind"
15 #define PAM_SM_AUTH
16 #define PAM_SM_ACCOUNT
17 #define PAM_SM_PASSWORD
18 #define PAM_SM_SESSION
19
20 #ifndef PAM_WINBIND_CONFIG_FILE
21 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
22 #endif
23
24 #include <iniparser.h>
25
26 #ifdef HAVE_LIBINTL_H
27 #include <libintl.h>
28 #endif
29
30 #if defined(LINUX)
31
32 /* newer versions of PAM have this in _pam_compat.h */
33 #ifndef PAM_AUTHTOK_RECOVERY_ERR
34 #define PAM_AUTHTOK_RECOVERY_ERR PAM_AUTHTOK_RECOVER_ERR
35 #endif
36
37 #else /* !LINUX */
38
39 /* Solaris always uses dynamic pam modules */
40 #define PAM_EXTERN extern
41 #if defined(HAVE_SECURITY_PAM_APPL_H)
42 #include <security/pam_appl.h>
43 #elif defined(HAVE_PAM_PAM_APPL_H)
44 #include <pam/pam_appl.h>
45 #endif
46
47 #ifndef PAM_AUTHTOK_RECOVER_ERR
48 #define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
49 #endif
50
51 #endif /* defined(SUNOS5) || defined(SUNOS4) || defined(HPUX) || defined(FREEBSD) || defined(AIX) */
52
53 #if defined(HAVE_SECURITY_PAM_MODULES_H)
54 #include <security/pam_modules.h>
55 #elif defined(HAVE_PAM_PAM_MODULES_H)
56 #include <pam/pam_modules.h>
57 #endif
58
59 #if defined(HAVE_SECURITY__PAM_MACROS_H)
60 #include <security/_pam_macros.h>
61 #elif defined(HAVE_PAM__PAM_MACROS_H)
62 #include <pam/_pam_macros.h>
63 #else
64 /* Define required macros from (Linux PAM 0.68) security/_pam_macros.h */
65 #define _pam_drop_reply(/* struct pam_response * */ reply, /* int */ replies) \
66 do {                                              \
67     int reply_i;                                  \
68                                                   \
69     for (reply_i=0; reply_i<replies; ++reply_i) { \
70         if (reply[reply_i].resp) {                \
71             _pam_overwrite(reply[reply_i].resp);  \
72             free(reply[reply_i].resp);            \
73         }                                         \
74     }                                             \
75     if (reply)                                    \
76         free(reply);                              \
77 } while (0)
78
79 #define _pam_overwrite(x)        \
80 do {                             \
81      register char *__xx__;      \
82      if ((__xx__=(x)))           \
83           while (*__xx__)        \
84                *__xx__++ = '\0'; \
85 } while (0)
86
87 /*
88  * Don't just free it, forget it too.
89  */
90
91 #define _pam_drop(X) SAFE_FREE(X)
92
93 #define  x_strdup(s)  ( (s) ? strdup(s):NULL )
94 #endif /* HAVE_SECURITY__PAM_MACROS_H */
95
96 #ifdef HAVE_SECURITY_PAM_EXT_H
97 #include <security/pam_ext.h>
98 #endif
99
100 #define WINBIND_DEBUG_ARG               0x00000001
101 #define WINBIND_USE_AUTHTOK_ARG         0x00000002
102 #define WINBIND_UNKNOWN_OK_ARG          0x00000004
103 #define WINBIND_TRY_FIRST_PASS_ARG      0x00000008
104 #define WINBIND_USE_FIRST_PASS_ARG      0x00000010
105 #define WINBIND__OLD_PASSWORD           0x00000020
106 #define WINBIND_REQUIRED_MEMBERSHIP     0x00000040
107 #define WINBIND_KRB5_AUTH               0x00000080
108 #define WINBIND_KRB5_CCACHE_TYPE        0x00000100
109 #define WINBIND_CACHED_LOGIN            0x00000200
110 #define WINBIND_CONFIG_FILE             0x00000400
111 #define WINBIND_SILENT                  0x00000800
112 #define WINBIND_DEBUG_STATE             0x00001000
113 #define WINBIND_WARN_PWD_EXPIRE         0x00002000
114 #define WINBIND_MKHOMEDIR               0x00004000
115
116 #if defined(HAVE_GETTEXT) && !defined(__LCLINT__)
117 #define _(string) dgettext(MODULE_NAME, string)
118 #else
119 #define _(string) string
120 #endif
121
122 #define N_(string) string
123
124 /*
125  * here is the string to inform the user that the new passwords they
126  * typed were not the same.
127  */
128
129 #define MISTYPED_PASS _("Sorry, passwords do not match")
130
131 #define on(x, y) (x & y)
132 #define off(x, y) (!(x & y))
133
134 #define PAM_WINBIND_NEW_AUTHTOK_REQD "PAM_WINBIND_NEW_AUTHTOK_REQD"
135 #define PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH "PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH"
136 #define PAM_WINBIND_HOMEDIR "PAM_WINBIND_HOMEDIR"
137 #define PAM_WINBIND_LOGONSCRIPT "PAM_WINBIND_LOGONSCRIPT"
138 #define PAM_WINBIND_LOGONSERVER "PAM_WINBIND_LOGONSERVER"
139 #define PAM_WINBIND_PROFILEPATH "PAM_WINBIND_PROFILEPATH"
140 #define PAM_WINBIND_PWD_LAST_SET "PAM_WINBIND_PWD_LAST_SET"
141
142 #define SECONDS_PER_DAY 86400
143
144 #define DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES 14
145
146 #include "winbind_client.h"
147
148 #define PAM_WB_REMARK_DIRECT(c,x)\
149 {\
150         const char *error_string = NULL; \
151         error_string = _get_ntstatus_error_string(x);\
152         if (error_string != NULL) {\
153                 _make_remark(c, PAM_ERROR_MSG, error_string);\
154         } else {\
155                 _make_remark(c, PAM_ERROR_MSG, x);\
156         };\
157 };
158
159 #define LOGON_KRB5_FAIL_CLOCK_SKEW      0x02000000
160
161 #define PAM_WB_CACHED_LOGON(x) (x & WBC_AUTH_USER_INFO_CACHED_ACCOUNT)
162 #define PAM_WB_KRB5_CLOCK_SKEW(x) (x & LOGON_KRB5_FAIL_CLOCK_SKEW)
163 #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)))
164
165 struct pwb_context {
166         pam_handle_t *pamh;
167         int flags;
168         int argc;
169         const char **argv;
170         dictionary *dict;
171         uint32_t ctrl;
172 };
173
174 #ifndef TALLOC_FREE
175 #define TALLOC_FREE(ctx) do { talloc_free(ctx); ctx=NULL; } while(0)
176 #endif
177 #define TALLOC_ZERO_P(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
178 #define TALLOC_P(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)