source/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
  11 #define MODULE_NAME "pam_winbind"
  12 #define PAM_SM_AUTH
  13 #define PAM_SM_ACCOUNT
  14 #define PAM_SM_PASSWORD
  15 #define PAM_SM_SESSION
  16
  17 #ifndef PAM_WINBIND_CONFIG_FILE
  18 #define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
  19 #endif
  20
  21 #include <iniparser.h>
  22
  23 #if defined(LINUX)
  24
  25 /* newer versions of PAM have this in _pam_compat.h */
  26 #ifndef PAM_AUTHTOK_RECOVERY_ERR
  27 #define PAM_AUTHTOK_RECOVERY_ERR PAM_AUTHTOK_RECOVER_ERR
  28 #endif
  29
  30 #else /* !LINUX */
  31
  32 /* Solaris always uses dynamic pam modules */
  33 #define PAM_EXTERN extern
  34 #if defined(HAVE_SECURITY_PAM_APPL_H)
  35 #include <security/pam_appl.h>
  36 #elif defined(HAVE_PAM_PAM_APPL_H)
  37 #include <pam/pam_appl.h>
  38 #endif
  39
  40 #ifndef PAM_AUTHTOK_RECOVER_ERR
  41 #define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
  42 #endif
  43
  44 #endif /* defined(SUNOS5) || defined(SUNOS4) || defined(HPUX) || defined(FREEBSD) || defined(AIX) */
  45
  46 #if defined(HAVE_SECURITY_PAM_MODULES_H)
  47 #include <security/pam_modules.h>
  48 #elif defined(HAVE_PAM_PAM_MODULES_H)
  49 #include <pam/pam_modules.h>
  50 #endif
  51
  52 #if defined(HAVE_SECURITY__PAM_MACROS_H)
  53 #include <security/_pam_macros.h>
  54 #elif defined(HAVE_PAM__PAM_MACROS_H)
  55 #include <pam/_pam_macros.h>
  56 #else
  57 /* Define required macros from (Linux PAM 0.68) security/_pam_macros.h */
  58 #define _pam_drop_reply(/* struct pam_response * */ reply, /* int */ replies) \
  59 do {                                              \
  60     int reply_i;                                  \
  61                                                   \
  62     for (reply_i=0; reply_i<replies; ++reply_i) { \
  63         if (reply[reply_i].resp) {                \
  64             _pam_overwrite(reply[reply_i].resp);  \
  65             free(reply[reply_i].resp);            \
  66         }                                         \
  67     }                                             \
  68     if (reply)                                    \
  69         free(reply);                              \
  70 } while (0)
  71
  72 #define _pam_overwrite(x)        \
  73 do {                             \
  74      register char *__xx__;      \
  75      if ((__xx__=(x)))           \
  76           while (*__xx__)        \
  77                *__xx__++ = '\0'; \
  78 } while (0)
  79
  80 /*
  81  * Don't just free it, forget it too.
  82  */
  83
  84 #define _pam_drop(X) SAFE_FREE(X)
  85
  86 #define  x_strdup(s)  ( (s) ? strdup(s):NULL )
  87 #endif /* HAVE_SECURITY__PAM_MACROS_H */
  88
  89 #ifdef HAVE_SECURITY_PAM_EXT_H
  90 #include <security/pam_ext.h>
  91 #endif
  92
  93 #define WINBIND_DEBUG_ARG (1<<0)
  94 #define WINBIND_USE_AUTHTOK_ARG (1<<1)
  95 #define WINBIND_UNKNOWN_OK_ARG (1<<2)
  96 #define WINBIND_TRY_FIRST_PASS_ARG (1<<3)
  97 #define WINBIND_USE_FIRST_PASS_ARG (1<<4)
  98 #define WINBIND__OLD_PASSWORD (1<<5)
  99 #define WINBIND_REQUIRED_MEMBERSHIP (1<<6)
 100 #define WINBIND_KRB5_AUTH (1<<7)
 101 #define WINBIND_KRB5_CCACHE_TYPE (1<<8)
 102 #define WINBIND_CACHED_LOGIN (1<<9)
 103 #define WINBIND_CONFIG_FILE (1<<10)
 104 #define WINBIND_SILENT (1<<11)
 105 #define WINBIND_DEBUG_STATE (1<<12)
 106 #define WINBIND_WARN_PWD_EXPIRE (1<<13)
 107
 108 /*
 109  * here is the string to inform the user that the new passwords they
 110  * typed were not the same.
 111  */
 112
 113 #define MISTYPED_PASS "Sorry, passwords do not match"
 114
 115 #define on(x, y) (x & y)
 116 #define off(x, y) (!(x & y))
 117
 118 #define PAM_WINBIND_NEW_AUTHTOK_REQD "PAM_WINBIND_NEW_AUTHTOK_REQD"
 119 #define PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH "PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH"
 120 #define PAM_WINBIND_HOMEDIR "PAM_WINBIND_HOMEDIR"
 121 #define PAM_WINBIND_LOGONSCRIPT "PAM_WINBIND_LOGONSCRIPT"
 122 #define PAM_WINBIND_LOGONSERVER "PAM_WINBIND_LOGONSERVER"
 123 #define PAM_WINBIND_PROFILEPATH "PAM_WINBIND_PROFILEPATH"
 124 #define PAM_WINBIND_PWD_LAST_SET "PAM_WINBIND_PWD_LAST_SET"
 125
 126 #define SECONDS_PER_DAY 86400
 127
 128 #define DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES 14
 129
 130 #include "winbind_client.h"
 131
 132 #define PAM_WB_REMARK_DIRECT(c,x)\
 133 {\
 134         const char *error_string = NULL; \
 135         error_string = _get_ntstatus_error_string(x);\
 136         if (error_string != NULL) {\
 137                 _make_remark(c, PAM_ERROR_MSG, error_string);\
 138         } else {\
 139                 _make_remark(c, PAM_ERROR_MSG, x);\
 140         };\
 141 };
 142
 143 #define PAM_WB_REMARK_DIRECT_RET(h,f,x)\
 144 {\
 145         const char *error_string = NULL; \
 146         error_string = _get_ntstatus_error_string(x);\
 147         if (error_string != NULL) {\
 148                 _make_remark(h, f, PAM_ERROR_MSG, error_string);\
 149                 return ret;\
 150         };\
 151         _make_remark(h, f, PAM_ERROR_MSG, x);\
 152         return ret;\
 153 };
 154
 155 #define PAM_WB_REMARK_CHECK_RESPONSE(c,x,y)\
 156 {\
 157         const char *ntstatus = x.data.auth.nt_status_string; \
 158         const char *error_string = NULL; \
 159         if (!strcasecmp(ntstatus,y)) {\
 160                 error_string = _get_ntstatus_error_string(y);\
 161                 if (error_string != NULL) {\
 162                         _make_remark(c, PAM_ERROR_MSG, error_string);\
 163                 };\
 164                 if (x.data.auth.error_string[0] != '\0') {\
 165                         _make_remark(c, PAM_ERROR_MSG, x.data.auth.error_string);\
 166                 };\
 167                 _make_remark(c, PAM_ERROR_MSG, y);\
 168         };\
 169 };
 170
 171 #define PAM_WB_REMARK_CHECK_RESPONSE_RET(c,x,y)\
 172 {\
 173         const char *ntstatus = x.data.auth.nt_status_string; \
 174         const char *error_string = NULL; \
 175         if (!strcasecmp(ntstatus,y)) {\
 176                 error_string = _get_ntstatus_error_string(y);\
 177                 if (error_string != NULL) {\
 178                         _make_remark(c, PAM_ERROR_MSG, error_string);\
 179                         return ret;\
 180                 };\
 181                 if (x.data.auth.error_string[0] != '\0') {\
 182                         _make_remark(c, PAM_ERROR_MSG, x.data.auth.error_string);\
 183                         return ret;\
 184                 };\
 185                 _make_remark(c, PAM_ERROR_MSG, y);\
 186                 return ret;\
 187         };\
 188 };
 189
 190 /* from samr.idl */
 191 #define DOMAIN_PASSWORD_COMPLEX         0x00000001
 192
 193 #define SAMR_REJECT_OTHER               0x00000000
 194 #define SAMR_REJECT_TOO_SHORT           0x00000001
 195 #define SAMR_REJECT_IN_HISTORY          0x00000002
 196 #define SAMR_REJECT_COMPLEXITY          0x00000005
 197
 198 #define ACB_PWNOEXP                     0x00000200
 199
 200 /* from netlogon.idl */
 201 #define NETLOGON_CACHED_ACCOUNT         0x00000004
 202 #define NETLOGON_GRACE_LOGON            0x01000000
 203
 204 /* from include/rpc_netlogon.h */
 205 #define LOGON_KRB5_FAIL_CLOCK_SKEW      0x02000000
 206
 207 #define PAM_WB_CACHED_LOGON(x) (x & NETLOGON_CACHED_ACCOUNT)
 208 #define PAM_WB_KRB5_CLOCK_SKEW(x) (x & LOGON_KRB5_FAIL_CLOCK_SKEW)
 209 #define PAM_WB_GRACE_LOGON(x)  ((NETLOGON_CACHED_ACCOUNT|NETLOGON_GRACE_LOGON) == ( x & (NETLOGON_CACHED_ACCOUNT|NETLOGON_GRACE_LOGON)))
 210
 211 struct pwb_context {
 212         pam_handle_t *pamh;
 213         int flags;
 214         int argc;
 215         const char **argv;
 216         dictionary *dict;
 217         uint32_t ctrl;
 218 };