source3/include/ads.h

   1 #ifndef _INCLUDE_ADS_H_
   2 #define _INCLUDE_ADS_H_
   3 /*
   4   header for ads (active directory) library routines
   5
   6   basically this is a wrapper around ldap
   7 */
   8
   9 #include "../libds/common/flags.h"
  10
  11 #define TOK_ID_KRB_AP_REQ       ((const uint8_t *)"\x01\x00")
  12 #define TOK_ID_KRB_AP_REP       ((const uint8_t *)"\x02\x00")
  13 #define TOK_ID_KRB_ERROR        ((const uint8_t *)"\x03\x00")
  14 #define TOK_ID_GSS_GETMIC       ((const uint8_t *)"\x01\x01")
  15 #define TOK_ID_GSS_WRAP         ((const uint8_t *)"\x02\x01")
  16
  17 enum wb_posix_mapping {
  18         WB_POSIX_MAP_UNKNOWN    = -1,
  19         WB_POSIX_MAP_TEMPLATE   = 0,
  20         WB_POSIX_MAP_SFU        = 1,
  21         WB_POSIX_MAP_SFU20      = 2,
  22         WB_POSIX_MAP_RFC2307    = 3,
  23         WB_POSIX_MAP_UNIXINFO   = 4
  24 };
  25
  26 /* there are 5 possible types of errors the ads subsystem can produce */
  27 enum ads_error_type {ENUM_ADS_ERROR_KRB5, ENUM_ADS_ERROR_GSS,
  28                      ENUM_ADS_ERROR_LDAP, ENUM_ADS_ERROR_SYSTEM, ENUM_ADS_ERROR_NT};
  29
  30 typedef struct {
  31         enum ads_error_type error_type;
  32         union err_state{
  33                 int rc;
  34                 NTSTATUS nt_status;
  35         } err;
  36         /* For error_type = ENUM_ADS_ERROR_GSS minor_status describe GSS API error */
  37         /* Where rc represents major_status of GSS API error */
  38         int minor_status;
  39 } ADS_STATUS;
  40
  41 struct ads_struct;
  42
  43 struct ads_saslwrap_ops {
  44         const char *name;
  45         ADS_STATUS (*wrap)(struct ads_struct *, uint8 *buf, uint32 len);
  46         ADS_STATUS (*unwrap)(struct ads_struct *);
  47         void (*disconnect)(struct ads_struct *);
  48 };
  49
  50 enum ads_saslwrap_type {
  51         ADS_SASLWRAP_TYPE_PLAIN = 1,
  52         ADS_SASLWRAP_TYPE_SIGN = 2,
  53         ADS_SASLWRAP_TYPE_SEAL = 4
  54 };
  55
  56 typedef struct ads_struct {
  57         int is_mine;    /* do I own this structure's memory? */
  58
  59         /* info needed to find the server */
  60         struct {
  61                 char *realm;
  62                 char *workgroup;
  63                 char *ldap_server;
  64                 int foreign; /* set to 1 if connecting to a foreign
  65                               * realm */
  66                 bool gc;     /* Is this a global catalog server? */
  67         } server;
  68
  69         /* info needed to authenticate */
  70         struct {
  71                 char *realm;
  72                 char *password;
  73                 char *user_name;
  74                 char *kdc_server;
  75                 unsigned flags;
  76                 int time_offset;
  77                 time_t tgt_expire;
  78                 time_t tgs_expire;
  79                 time_t renewable;
  80         } auth;
  81
  82         /* info derived from the servers config */
  83         struct {
  84                 uint32 flags; /* cldap flags identifying the services. */
  85                 char *realm;
  86                 char *bind_path;
  87                 char *ldap_server_name;
  88                 char *server_site_name;
  89                 char *client_site_name;
  90                 time_t current_time;
  91                 char *schema_path;
  92                 char *config_path;
  93         } config;
  94
  95         /* info about the current LDAP connection */
  96 #ifdef HAVE_LDAP
  97         struct {
  98                 LDAP *ld;
  99                 struct sockaddr_storage ss; /* the ip of the active connection, if any */
 100                 time_t last_attempt; /* last attempt to reconnect */
 101                 int port;
 102
 103                 enum ads_saslwrap_type wrap_type;
 104
 105 #ifdef HAVE_LDAP_SASL_WRAPPING
 106                 Sockbuf_IO_Desc *sbiod; /* lowlevel state for LDAP wrapping */
 107 #endif /* HAVE_LDAP_SASL_WRAPPING */
 108                 TALLOC_CTX *mem_ctx;
 109                 const struct ads_saslwrap_ops *wrap_ops;
 110                 void *wrap_private_data;
 111                 struct {
 112                         uint32 ofs;
 113                         uint32 needed;
 114                         uint32 left;
 115 #define        ADS_SASL_WRAPPING_IN_MAX_WRAPPED        0x0FFFFFFF
 116                         uint32 max_wrapped;
 117                         uint32 min_wrapped;
 118                         uint32 size;
 119                         uint8 *buf;
 120                 } in;
 121                 struct {
 122                         uint32 ofs;
 123                         uint32 left;
 124 #define        ADS_SASL_WRAPPING_OUT_MAX_WRAPPED       0x00A00000
 125                         uint32 max_unwrapped;
 126                         uint32 sig_size;
 127                         uint32 size;
 128                         uint8 *buf;
 129                 } out;
 130         } ldap;
 131 #endif /* HAVE_LDAP */
 132 } ADS_STRUCT;
 133
 134 /* used to remember the names of the posix attributes in AD */
 135 /* see the rfc2307 & sfu nss backends */
 136
 137 struct posix_schema {
 138         char *posix_homedir_attr;
 139         char *posix_shell_attr;
 140         char *posix_uidnumber_attr;
 141         char *posix_gidnumber_attr;
 142         char *posix_gecos_attr;
 143         char *posix_uid_attr;
 144 };
 145
 146
 147
 148 #ifdef HAVE_ADS
 149 typedef LDAPMod **ADS_MODLIST;
 150 #else
 151 typedef void **ADS_MODLIST;
 152 #endif
 153
 154 /* macros to simplify error returning */
 155 #define ADS_ERROR(rc) ADS_ERROR_LDAP(rc)
 156 #define ADS_ERROR_LDAP(rc) ads_build_error(ENUM_ADS_ERROR_LDAP, rc, 0)
 157 #define ADS_ERROR_SYSTEM(rc) ads_build_error(ENUM_ADS_ERROR_SYSTEM, rc?rc:EINVAL, 0)
 158 #define ADS_ERROR_KRB5(rc) ads_build_error(ENUM_ADS_ERROR_KRB5, rc, 0)
 159 #define ADS_ERROR_GSS(rc, minor) ads_build_error(ENUM_ADS_ERROR_GSS, rc, minor)
 160 #define ADS_ERROR_NT(rc) ads_build_nt_error(ENUM_ADS_ERROR_NT,rc)
 161
 162 #define ADS_ERR_OK(status) ((status.error_type == ENUM_ADS_ERROR_NT) ? NT_STATUS_IS_OK(status.err.nt_status):(status.err.rc == 0))
 163 #define ADS_SUCCESS ADS_ERROR(0)
 164
 165 #define ADS_ERROR_HAVE_NO_MEMORY(x) do { \
 166         if (!(x)) {\
 167                 return ADS_ERROR(LDAP_NO_MEMORY);\
 168         }\
 169 } while (0)
 170
 171
 172 /* time between reconnect attempts */
 173 #define ADS_RECONNECT_TIME 5
 174
 175 /* ldap control oids */
 176 #define ADS_PAGE_CTL_OID        "1.2.840.113556.1.4.319"
 177 #define ADS_NO_REFERRALS_OID    "1.2.840.113556.1.4.1339"
 178 #define ADS_SERVER_SORT_OID     "1.2.840.113556.1.4.473"
 179 #define ADS_PERMIT_MODIFY_OID   "1.2.840.113556.1.4.1413"
 180 #define ADS_ASQ_OID             "1.2.840.113556.1.4.1504"
 181 #define ADS_EXTENDED_DN_OID     "1.2.840.113556.1.4.529"
 182 #define ADS_SD_FLAGS_OID        "1.2.840.113556.1.4.801"
 183
 184 /* ldap attribute oids (Services for Unix 3.0, 3.5) */
 185 #define ADS_ATTR_SFU_UIDNUMBER_OID      "1.2.840.113556.1.6.18.1.310"
 186 #define ADS_ATTR_SFU_GIDNUMBER_OID      "1.2.840.113556.1.6.18.1.311"
 187 #define ADS_ATTR_SFU_HOMEDIR_OID        "1.2.840.113556.1.6.18.1.344"
 188 #define ADS_ATTR_SFU_SHELL_OID          "1.2.840.113556.1.6.18.1.312"
 189 #define ADS_ATTR_SFU_GECOS_OID          "1.2.840.113556.1.6.18.1.337"
 190 #define ADS_ATTR_SFU_UID_OID            "1.2.840.113556.1.6.18.1.309"
 191
 192 /* ldap attribute oids (Services for Unix 2.0) */
 193 #define ADS_ATTR_SFU20_UIDNUMBER_OID    "1.2.840.113556.1.4.7000.187.70"
 194 #define ADS_ATTR_SFU20_GIDNUMBER_OID    "1.2.840.113556.1.4.7000.187.71"
 195 #define ADS_ATTR_SFU20_HOMEDIR_OID      "1.2.840.113556.1.4.7000.187.106"
 196 #define ADS_ATTR_SFU20_SHELL_OID        "1.2.840.113556.1.4.7000.187.72"
 197 #define ADS_ATTR_SFU20_GECOS_OID        "1.2.840.113556.1.4.7000.187.97"
 198 #define ADS_ATTR_SFU20_UID_OID          "1.2.840.113556.1.4.7000.187.102"
 199
 200
 201 /* ldap attribute oids (RFC2307) */
 202 #define ADS_ATTR_RFC2307_UIDNUMBER_OID  "1.3.6.1.1.1.1.0"
 203 #define ADS_ATTR_RFC2307_GIDNUMBER_OID  "1.3.6.1.1.1.1.1"
 204 #define ADS_ATTR_RFC2307_HOMEDIR_OID    "1.3.6.1.1.1.1.3"
 205 #define ADS_ATTR_RFC2307_SHELL_OID      "1.3.6.1.1.1.1.4"
 206 #define ADS_ATTR_RFC2307_GECOS_OID      "1.3.6.1.1.1.1.2"
 207 #define ADS_ATTR_RFC2307_UID_OID        "0.9.2342.19200300.100.1.1"
 208
 209 /* ldap bitwise searches */
 210 #define ADS_LDAP_MATCHING_RULE_BIT_AND  "1.2.840.113556.1.4.803"
 211 #define ADS_LDAP_MATCHING_RULE_BIT_OR   "1.2.840.113556.1.4.804"
 212
 213 #define ADS_PINGS          0x0000FFFF  /* Ping response */
 214 #define ADS_DNS_CONTROLLER 0x20000000  /* DomainControllerName is a DNS name*/
 215 #define ADS_DNS_DOMAIN     0x40000000  /* DomainName is a DNS name */
 216 #define ADS_DNS_FOREST     0x80000000  /* DnsForestName is a DNS name */
 217
 218 /* ads auth control flags */
 219 #define ADS_AUTH_DISABLE_KERBEROS 0x0001
 220 #define ADS_AUTH_NO_BIND          0x0002
 221 #define ADS_AUTH_ANON_BIND        0x0004
 222 #define ADS_AUTH_SIMPLE_BIND      0x0008
 223 #define ADS_AUTH_ALLOW_NTLMSSP    0x0010
 224 #define ADS_AUTH_SASL_SIGN        0x0020
 225 #define ADS_AUTH_SASL_SEAL        0x0040
 226 #define ADS_AUTH_SASL_FORCE       0x0080
 227 #define ADS_AUTH_USER_CREDS       0x0100
 228
 229 /* Kerberos environment variable names */
 230 #define KRB5_ENV_CCNAME "KRB5CCNAME"
 231
 232 /* Heimdal uses a slightly different name */
 233 #if defined(HAVE_ENCTYPE_ARCFOUR_HMAC_MD5)
 234 #define ENCTYPE_ARCFOUR_HMAC ENCTYPE_ARCFOUR_HMAC_MD5
 235 #endif
 236
 237 /* The older versions of heimdal that don't have this
 238    define don't seem to use it anyway.  I'm told they
 239    always use a subkey */
 240 #ifndef HAVE_AP_OPTS_USE_SUBKEY
 241 #define AP_OPTS_USE_SUBKEY 0
 242 #endif
 243
 244 #define WELL_KNOWN_GUID_COMPUTERS       "AA312825768811D1ADED00C04FD8D5CD"
 245 #define WELL_KNOWN_GUID_USERS           "A9D1CA15768811D1ADED00C04FD8D5CD"
 246
 247 #ifndef KRB5_ADDR_NETBIOS
 248 #define KRB5_ADDR_NETBIOS 0x14
 249 #endif
 250
 251 #ifndef KRB5KRB_ERR_RESPONSE_TOO_BIG
 252 #define KRB5KRB_ERR_RESPONSE_TOO_BIG (-1765328332L)
 253 #endif
 254
 255 #ifdef HAVE_KRB5
 256 typedef struct {
 257 #if defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) /* MIT */
 258         krb5_address **addrs;
 259 #elif defined(HAVE_KRB5_ADDRESSES) /* Heimdal */
 260         krb5_addresses *addrs;
 261 #else
 262 #error UNKNOWN_KRB5_ADDRESS_TYPE
 263 #endif /* defined(HAVE_MAGIC_IN_KRB5_ADDRESS) && defined(HAVE_ADDRTYPE_IN_KRB5_ADDRESS) */
 264 } smb_krb5_addresses;
 265
 266 #ifdef HAVE_KRB5_KEYBLOCK_KEYVALUE /* Heimdal */
 267 #define KRB5_KEY_TYPE(k)        ((k)->keytype)
 268 #define KRB5_KEY_LENGTH(k)      ((k)->keyvalue.length)
 269 #define KRB5_KEY_DATA(k)        ((k)->keyvalue.data)
 270 #define KRB5_KEY_DATA_CAST      void
 271 #else /* MIT */
 272 #define KRB5_KEY_TYPE(k)        ((k)->enctype)
 273 #define KRB5_KEY_LENGTH(k)      ((k)->length)
 274 #define KRB5_KEY_DATA(k)        ((k)->contents)
 275 #define KRB5_KEY_DATA_CAST      krb5_octet
 276 #endif /* HAVE_KRB5_KEYBLOCK_KEYVALUE */
 277
 278 #ifdef HAVE_KRB5_KEYTAB_ENTRY_KEY               /* MIT */
 279 #define KRB5_KT_KEY(k)          (&(k)->key)
 280 #elif HAVE_KRB5_KEYTAB_ENTRY_KEYBLOCK          /* Heimdal */
 281 #define KRB5_KT_KEY(k)          (&(k)->keyblock)
 282 #else
 283 #error krb5_keytab_entry has no key or keyblock member
 284 #endif /* HAVE_KRB5_KEYTAB_ENTRY_KEY */
 285
 286 #endif /* HAVE_KRB5 */
 287
 288 enum ads_extended_dn_flags {
 289         ADS_EXTENDED_DN_HEX_STRING      = 0,
 290         ADS_EXTENDED_DN_STRING          = 1 /* not supported on win2k */
 291 };
 292
 293 /* this is probably not very well suited to pass other controls generically but
 294  * is good enough for the extended dn control where it is only used for atm */
 295
 296 typedef struct {
 297         const char *control;
 298         int val;
 299         int critical;
 300 } ads_control;
 301
 302 #define ADS_IGNORE_PRINCIPAL "not_defined_in_RFC4178@please_ignore"
 303
 304 #endif  /* _INCLUDE_ADS_H_ */