source3/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
  13 #define MODULE_NAME "pam_winbind"
  14 #define PAM_SM_AUTH
  15 #define PAM_SM_ACCOUNT
  16 #define PAM_SM_PASSWORD
  17 #define PAM_SM_SESSION
  18
  19 #ifndef PAM_WINBIND_CONFIG_FILE
  20 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
  21 #endif
  22
  23 #include <iniparser.h>
  24
  25 #ifndef LINUX
  26
  27 /* Solaris always uses dynamic pam modules */
  28 #define PAM_EXTERN extern
  29 #if defined(HAVE_SECURITY_PAM_APPL_H)
  30 #include <security/pam_appl.h>
  31 #elif defined(HAVE_PAM_PAM_APPL_H)
  32 #include <pam/pam_appl.h>
  33 #endif
  34
  35 #ifndef PAM_AUTHTOK_RECOVER_ERR
  36 #define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
  37 #endif
  38
  39 #endif /* defined(SUNOS5) || defined(SUNOS4) || defined(HPUX) || defined(FREEBSD) || defined(AIX) */
  40
  41 #if defined(HAVE_SECURITY_PAM_MODULES_H)
  42 #include <security/pam_modules.h>
  43 #elif defined(HAVE_PAM_PAM_MODULES_H)
  44 #include <pam/pam_modules.h>
  45 #endif
  46
  47 #if defined(HAVE_SECURITY__PAM_MACROS_H)
  48 #include <security/_pam_macros.h>
  49 #elif defined(HAVE_PAM__PAM_MACROS_H)
  50 #include <pam/_pam_macros.h>
  51 #else
  52 /* Define required macros from (Linux PAM 0.68) security/_pam_macros.h */
  53 #define _pam_drop_reply(/* struct pam_response * */ reply, /* int */ replies) \
  54 do {                                              \
  55     int reply_i;                                  \
  56                                                   \
  57     for (reply_i=0; reply_i<replies; ++reply_i) { \
  58         if (reply[reply_i].resp) {                \
  59             _pam_overwrite(reply[reply_i].resp);  \
  60             free(reply[reply_i].resp);            \
  61         }                                         \
  62     }                                             \
  63     if (reply)                                    \
  64         free(reply);                              \
  65 } while (0)
  66
  67 #define _pam_overwrite(x)        \
  68 do {                             \
  69      register char *__xx__;      \
  70      if ((__xx__=(x)))           \
  71           while (*__xx__)        \
  72                *__xx__++ = '\0'; \
  73 } while (0)
  74
  75 /*
  76  * Don't just free it, forget it too.
  77  */
  78
  79 #define _pam_drop(X) SAFE_FREE(X)
  80
  81 #define  x_strdup(s)  ( (s) ? strdup(s):NULL )
  82 #endif /* HAVE_SECURITY__PAM_MACROS_H */
  83
  84 #ifdef HAVE_SECURITY_PAM_EXT_H
  85 #include <security/pam_ext.h>
  86 #endif
  87
  88 #define WINBIND_DEBUG_ARG               0x00000001
  89 #define WINBIND_USE_AUTHTOK_ARG         0x00000002
  90 #define WINBIND_UNKNOWN_OK_ARG          0x00000004
  91 #define WINBIND_TRY_FIRST_PASS_ARG      0x00000008
  92 #define WINBIND_USE_FIRST_PASS_ARG      0x00000010
  93 #define WINBIND__OLD_PASSWORD           0x00000020
  94 #define WINBIND_REQUIRED_MEMBERSHIP     0x00000040
  95 #define WINBIND_KRB5_AUTH               0x00000080
  96 #define WINBIND_KRB5_CCACHE_TYPE        0x00000100
  97 #define WINBIND_CACHED_LOGIN            0x00000200
  98 #define WINBIND_CONFIG_FILE             0x00000400
  99 #define WINBIND_SILENT                  0x00000800
 100 #define WINBIND_DEBUG_STATE             0x00001000
 101 #define WINBIND_WARN_PWD_EXPIRE         0x00002000
 102
 103 /*
 104  * here is the string to inform the user that the new passwords they
 105  * typed were not the same.
 106  */
 107
 108 #define MISTYPED_PASS "Sorry, passwords do not match"
 109
 110 #define on(x, y) (x & y)
 111 #define off(x, y) (!(x & y))
 112
 113 #define PAM_WINBIND_NEW_AUTHTOK_REQD "PAM_WINBIND_NEW_AUTHTOK_REQD"
 114 #define PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH "PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH"
 115 #define PAM_WINBIND_HOMEDIR "PAM_WINBIND_HOMEDIR"
 116 #define PAM_WINBIND_LOGONSCRIPT "PAM_WINBIND_LOGONSCRIPT"
 117 #define PAM_WINBIND_LOGONSERVER "PAM_WINBIND_LOGONSERVER"
 118 #define PAM_WINBIND_PROFILEPATH "PAM_WINBIND_PROFILEPATH"
 119 #define PAM_WINBIND_PWD_LAST_SET "PAM_WINBIND_PWD_LAST_SET"
 120
 121 #define SECONDS_PER_DAY 86400
 122
 123 #define DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES 14
 124
 125 #include "winbind_client.h"
 126
 127 #define PAM_WB_REMARK_DIRECT(c,x)\
 128 {\
 129         const char *error_string = NULL; \
 130         error_string = _get_ntstatus_error_string(x);\
 131         if (error_string != NULL) {\
 132                 _make_remark(c, PAM_ERROR_MSG, error_string);\
 133         } else {\
 134                 _make_remark(c, PAM_ERROR_MSG, x);\
 135         };\
 136 };
 137
 138 #define PAM_WB_REMARK_DIRECT_RET(h,f,x)\
 139 {\
 140         const char *error_string = NULL; \
 141         error_string = _get_ntstatus_error_string(x);\
 142         if (error_string != NULL) {\
 143                 _make_remark(h, f, PAM_ERROR_MSG, error_string);\
 144                 return ret;\
 145         };\
 146         _make_remark(h, f, PAM_ERROR_MSG, x);\
 147         return ret;\
 148 };
 149
 150 #define PAM_WB_REMARK_CHECK_RESPONSE(c,x,y)\
 151 {\
 152         const char *ntstatus = x.data.auth.nt_status_string; \
 153         const char *error_string = NULL; \
 154         if (!strcasecmp(ntstatus,y)) {\
 155                 error_string = _get_ntstatus_error_string(y);\
 156                 if (error_string != NULL) {\
 157                         _make_remark(c, PAM_ERROR_MSG, error_string);\
 158                 };\
 159                 if (x.data.auth.error_string[0] != '\0') {\
 160                         _make_remark(c, PAM_ERROR_MSG, x.data.auth.error_string);\
 161                 };\
 162                 _make_remark(c, PAM_ERROR_MSG, y);\
 163         };\
 164 };
 165
 166 #define PAM_WB_REMARK_CHECK_RESPONSE_RET(c,x,y)\
 167 {\
 168         const char *ntstatus = x.data.auth.nt_status_string; \
 169         const char *error_string = NULL; \
 170         if (!strcasecmp(ntstatus,y)) {\
 171                 error_string = _get_ntstatus_error_string(y);\
 172                 if (error_string != NULL) {\
 173                         _make_remark(c, PAM_ERROR_MSG, error_string);\
 174                         return ret;\
 175                 };\
 176                 if (x.data.auth.error_string[0] != '\0') {\
 177                         _make_remark(c, PAM_ERROR_MSG, x.data.auth.error_string);\
 178                         return ret;\
 179                 };\
 180                 _make_remark(c, PAM_ERROR_MSG, y);\
 181                 return ret;\
 182         };\
 183 };
 184
 185 #define ACB_PWNOEXP                     0x00000200
 186
 187 /* from netlogon.idl */
 188 #define NETLOGON_CACHED_ACCOUNT         0x00000004
 189 #define NETLOGON_GRACE_LOGON            0x01000000
 190
 191 /* from include/rpc_netlogon.h */
 192 #define LOGON_KRB5_FAIL_CLOCK_SKEW      0x02000000
 193
 194 #define PAM_WB_CACHED_LOGON(x) (x & NETLOGON_CACHED_ACCOUNT)
 195 #define PAM_WB_KRB5_CLOCK_SKEW(x) (x & LOGON_KRB5_FAIL_CLOCK_SKEW)
 196 #define PAM_WB_GRACE_LOGON(x)  ((NETLOGON_CACHED_ACCOUNT|NETLOGON_GRACE_LOGON) == ( x & (NETLOGON_CACHED_ACCOUNT|NETLOGON_GRACE_LOGON)))
 197
 198 struct pwb_context {
 199         pam_handle_t *pamh;
 200         int flags;
 201         int argc;
 202         const char **argv;
 203         dictionary *dict;
 204         uint32_t ctrl;
 205 };
 206
 207 #define TALLOC_FREE(ctx) do { if ((ctx) != NULL) {talloc_free(ctx); ctx=NULL;} } while(0)
 208 #define TALLOC_ZERO_P(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
 209 #define TALLOC_P(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)
 210