nsswitch/winbind_struct_protocol.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon for ntdom nss module
   5
   6    Copyright (C) Tim Potter 2000
   7    Copyright (C) Gerald Carter 2006
   8
   9    You are free to use this interface definition in any way you see
  10    fit, including without restriction, using this header in your own
  11    products. You do not need to give any attribution.
  12 */
  13
  14 #ifndef SAFE_FREE
  15 #define SAFE_FREE(x) do { if(x) {free(x); x=NULL;} } while(0)
  16 #endif
  17
  18 #ifndef FSTRING_LEN
  19 #define FSTRING_LEN 256
  20 typedef char fstring[FSTRING_LEN];
  21 #endif
  22
  23 #ifndef _WINBINDD_NTDOM_H
  24 #define _WINBINDD_NTDOM_H
  25
  26 #define WINBINDD_SOCKET_NAME "pipe"            /* Name of PF_UNIX socket */
  27
  28 /* Let the build environment override the public winbindd socket location. This
  29  * is needed for launchd support -- jpeach.
  30  */
  31 #ifndef WINBINDD_SOCKET_DIR
  32 #define WINBINDD_SOCKET_DIR  "/tmp/.winbindd"  /* Name of PF_UNIX dir */
  33 #endif
  34
  35 /*
  36  * when compiled with socket_wrapper support
  37  * the location of the WINBINDD_SOCKET_DIR
  38  * can be overwritten via an environment variable
  39  */
  40 #define WINBINDD_SOCKET_DIR_ENVVAR "WINBINDD_SOCKET_DIR"
  41
  42 #define WINBINDD_PRIV_SOCKET_SUBDIR "winbindd_privileged" /* name of subdirectory of lp_lockdir() to hold the 'privileged' pipe */
  43 #define WINBINDD_DOMAIN_ENV  "WINBINDD_DOMAIN" /* Environment variables */
  44 #define WINBINDD_DONT_ENV    "_NO_WINBINDD"
  45 #define WINBINDD_LOCATOR_KDC_ADDRESS "WINBINDD_LOCATOR_KDC_ADDRESS"
  46
  47 /* Update this when you change the interface.
  48  * 21: added WINBINDD_GETPWSID
  49  *     added WINBINDD_GETSIDALIASES
  50  * 22: added WINBINDD_PING_DC
  51  * 23: added session_key to ccache_ntlm_auth response
  52  *     added WINBINDD_CCACHE_SAVE
  53  * 24: Fill in num_entries WINBINDD_LIST_USERS and WINBINDD_LIST_GROUPS
  54  * 25: removed WINBINDD_SET_HWM
  55  *     removed WINBINDD_SET_MAPPING
  56  *     removed WINBINDD_REMOVE_MAPPING
  57  * 26: added WINBINDD_DC_INFO
  58  * 27: added WINBINDD_LOOKUPSIDS
  59  */
  60 #define WINBIND_INTERFACE_VERSION 27
  61
  62 /* Have to deal with time_t being 4 or 8 bytes due to structure alignment.
  63    On a 64bit Linux box, we have to support a constant structure size
  64    between /lib/libnss_winbind.so.2 and /lib64/libnss_winbind.so.2.
  65    The easiest way to do this is to always use 8byte values for time_t. */
  66
  67 #define SMB_TIME_T int64_t
  68
  69 /* Socket commands */
  70
  71 enum winbindd_cmd {
  72
  73         WINBINDD_INTERFACE_VERSION,    /* Always a well known value */
  74
  75         /* Get users and groups */
  76
  77         WINBINDD_GETPWNAM,
  78         WINBINDD_GETPWUID,
  79         WINBINDD_GETPWSID,
  80         WINBINDD_GETGRNAM,
  81         WINBINDD_GETGRGID,
  82         WINBINDD_GETGROUPS,
  83
  84         /* Enumerate users and groups */
  85
  86         WINBINDD_SETPWENT,
  87         WINBINDD_ENDPWENT,
  88         WINBINDD_GETPWENT,
  89         WINBINDD_SETGRENT,
  90         WINBINDD_ENDGRENT,
  91         WINBINDD_GETGRENT,
  92
  93         /* PAM authenticate and password change */
  94
  95         WINBINDD_PAM_AUTH,
  96         WINBINDD_PAM_AUTH_CRAP,
  97         WINBINDD_PAM_CHAUTHTOK,
  98         WINBINDD_PAM_LOGOFF,
  99         WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,
 100
 101         /* List various things */
 102
 103         WINBINDD_LIST_USERS,         /* List w/o rid->id mapping */
 104         WINBINDD_LIST_GROUPS,        /* Ditto */
 105         WINBINDD_LIST_TRUSTDOM,
 106
 107         /* SID conversion */
 108
 109         WINBINDD_LOOKUPSID,
 110         WINBINDD_LOOKUPNAME,
 111         WINBINDD_LOOKUPRIDS,
 112         WINBINDD_LOOKUPSIDS,
 113
 114         /* Lookup functions */
 115
 116         WINBINDD_SID_TO_UID,
 117         WINBINDD_SID_TO_GID,
 118         WINBINDD_SIDS_TO_XIDS,
 119         WINBINDD_UID_TO_SID,
 120         WINBINDD_GID_TO_SID,
 121
 122         WINBINDD_ALLOCATE_UID,
 123         WINBINDD_ALLOCATE_GID,
 124
 125         /* Miscellaneous other stuff */
 126
 127         WINBINDD_CHECK_MACHACC,     /* Check machine account pw works */
 128         WINBINDD_CHANGE_MACHACC,    /* Change machine account pw */
 129         WINBINDD_PING_DC,           /* Ping the DC through NETLOGON */
 130         WINBINDD_PING,              /* Just tell me winbind is running */
 131         WINBINDD_INFO,              /* Various bit of info.  Currently just tidbits */
 132         WINBINDD_DOMAIN_NAME,       /* The domain this winbind server is a member of (lp_workgroup()) */
 133
 134         WINBINDD_DOMAIN_INFO,   /* Most of what we know from
 135                                    struct winbindd_domain */
 136         WINBINDD_GETDCNAME,     /* Issue a GetDCName Request */
 137         WINBINDD_DSGETDCNAME,   /* Issue a DsGetDCName Request */
 138         WINBINDD_DC_INFO,       /* Which DC are we connected to? */
 139
 140         WINBINDD_SHOW_SEQUENCE, /* display sequence numbers of domains */
 141
 142         /* WINS commands */
 143
 144         WINBINDD_WINS_BYIP,
 145         WINBINDD_WINS_BYNAME,
 146
 147         /* this is like GETGRENT but gives an empty group list */
 148         WINBINDD_GETGRLST,
 149
 150         WINBINDD_NETBIOS_NAME,       /* The netbios name of the server */
 151
 152         /* find the location of our privileged pipe */
 153         WINBINDD_PRIV_PIPE_DIR,
 154
 155         /* return a list of group sids for a user sid */
 156         WINBINDD_GETUSERSIDS,
 157
 158         /* Various group queries */
 159         WINBINDD_GETUSERDOMGROUPS,
 160
 161         /* lookup local groups */
 162         WINBINDD_GETSIDALIASES,
 163
 164         /* Initialize connection in a child */
 165         WINBINDD_INIT_CONNECTION,
 166
 167         /* Blocking calls that are not allowed on the main winbind pipe, only
 168          * between parent and children */
 169         WINBINDD_DUAL_SID2UID,
 170         WINBINDD_DUAL_SID2GID,
 171         WINBINDD_DUAL_SIDS2XIDS,
 172         WINBINDD_DUAL_UID2SID,
 173         WINBINDD_DUAL_GID2SID,
 174
 175         /* Wrapper around possibly blocking unix nss calls */
 176         WINBINDD_DUAL_USERINFO,
 177         WINBINDD_DUAL_GETSIDALIASES,
 178
 179         WINBINDD_DUAL_NDRCMD,
 180
 181         /* Complete the challenge phase of the NTLM authentication
 182            protocol using cached password. */
 183         WINBINDD_CCACHE_NTLMAUTH,
 184         WINBINDD_CCACHE_SAVE,
 185
 186         WINBINDD_NUM_CMDS
 187 };
 188
 189 typedef struct winbindd_pw {
 190         fstring pw_name;
 191         fstring pw_passwd;
 192         uid_t pw_uid;
 193         gid_t pw_gid;
 194         fstring pw_gecos;
 195         fstring pw_dir;
 196         fstring pw_shell;
 197 } WINBINDD_PW;
 198
 199
 200 typedef struct winbindd_gr {
 201         fstring gr_name;
 202         fstring gr_passwd;
 203         gid_t gr_gid;
 204         uint32_t num_gr_mem;
 205         uint32_t gr_mem_ofs;   /* offset to group membership */
 206 } WINBINDD_GR;
 207
 208 /* PAM specific request flags */
 209 #define WBFLAG_PAM_INFO3_NDR            0x00000001
 210 #define WBFLAG_PAM_INFO3_TEXT           0x00000002
 211 #define WBFLAG_PAM_USER_SESSION_KEY     0x00000004
 212 #define WBFLAG_PAM_LMKEY                0x00000008
 213 #define WBFLAG_PAM_CONTACT_TRUSTDOM     0x00000010
 214 #define WBFLAG_PAM_UNIX_NAME            0x00000080
 215 #define WBFLAG_PAM_AFS_TOKEN            0x00000100
 216 #define WBFLAG_PAM_NT_STATUS_SQUASH     0x00000200
 217 #define WBFLAG_PAM_KRB5                 0x00001000
 218 #define WBFLAG_PAM_FALLBACK_AFTER_KRB5  0x00002000
 219 #define WBFLAG_PAM_CACHED_LOGIN         0x00004000
 220 #define WBFLAG_PAM_GET_PWD_POLICY       0x00008000
 221 #define WBFLAG_PAM_AUTH_PAC             0x00010000
 222
 223 /* generic request flags */
 224 #define WBFLAG_QUERY_ONLY               0x00000020      /* not used */
 225 /* This is a flag that can only be sent from parent to child */
 226 #define WBFLAG_IS_PRIVILEGED            0x00000400      /* not used */
 227 /* Flag to say this is a winbindd internal send - don't recurse. */
 228 #define WBFLAG_RECURSE                  0x00000800
 229 /* Flag to tell winbind the NTLMv2 blob is too big for the struct and is in the
 230  * extra_data field */
 231 #define WBFLAG_BIG_NTLMV2_BLOB          0x00010000
 232
 233 #define WINBINDD_MAX_EXTRA_DATA (128*1024)
 234
 235 /* Winbind request structure */
 236
 237 /*******************************************************************************
 238  * This structure MUST be the same size in the 32bit and 64bit builds
 239  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 240  *
 241  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 242  * A 64BIT WINBINDD    --jerry
 243  ******************************************************************************/
 244
 245 struct winbindd_request {
 246         uint32_t length;
 247         enum winbindd_cmd cmd;   /* Winbindd command to execute */
 248         enum winbindd_cmd original_cmd;   /* Original Winbindd command
 249                                              issued to parent process */
 250         pid_t pid;               /* pid of calling process */
 251         uint32_t wb_flags;       /* generic flags */
 252         uint32_t flags;          /* flags relevant *only* to a given request */
 253         fstring domain_name;    /* name of domain for which the request applies */
 254
 255         union {
 256                 fstring winsreq;     /* WINS request */
 257                 fstring username;    /* getpwnam */
 258                 fstring groupname;   /* getgrnam */
 259                 uid_t uid;           /* getpwuid, uid_to_sid */
 260                 gid_t gid;           /* getgrgid, gid_to_sid */
 261                 uint32_t ndrcmd;
 262                 struct {
 263                         /* We deliberatedly don't split into domain/user to
 264                            avoid having the client know what the separator
 265                            character is. */
 266                         fstring user;
 267                         fstring pass;
 268                         char require_membership_of_sid[1024];
 269                         fstring krb5_cc_type;
 270                         uid_t uid;
 271                 } auth;              /* pam_winbind auth module */
 272                 struct {
 273                         uint8_t chal[8];
 274                         uint32_t logon_parameters;
 275                         fstring user;
 276                         fstring domain;
 277                         fstring lm_resp;
 278                         uint32_t lm_resp_len;
 279                         fstring nt_resp;
 280                         uint32_t nt_resp_len;
 281                         fstring workstation;
 282                         fstring require_membership_of_sid;
 283                 } auth_crap;
 284                 struct {
 285                     fstring user;
 286                     fstring oldpass;
 287                     fstring newpass;
 288                 } chauthtok;         /* pam_winbind passwd module */
 289                 struct {
 290                         fstring user;
 291                         fstring domain;
 292                         uint8_t new_nt_pswd[516];
 293                         uint16_t new_nt_pswd_len;
 294                         uint8_t old_nt_hash_enc[16];
 295                         uint16_t old_nt_hash_enc_len;
 296                         uint8_t new_lm_pswd[516];
 297                         uint16_t new_lm_pswd_len;
 298                         uint8_t old_lm_hash_enc[16];
 299                         uint16_t old_lm_hash_enc_len;
 300                 } chng_pswd_auth_crap;/* pam_winbind passwd module */
 301                 struct {
 302                         fstring user;
 303                         fstring krb5ccname;
 304                         uid_t uid;
 305                 } logoff;              /* pam_winbind session module */
 306                 fstring sid;         /* lookupsid, sid_to_[ug]id */
 307                 struct {
 308                         fstring dom_name;       /* lookupname */
 309                         fstring name;
 310                 } name;
 311                 uint32_t num_entries;  /* getpwent, getgrent */
 312                 struct {
 313                         fstring username;
 314                         fstring groupname;
 315                 } acct_mgt;
 316                 struct {
 317                         bool is_primary;
 318                         fstring dcname;
 319                 } init_conn;
 320                 struct {
 321                         fstring sid;
 322                         fstring name;
 323                 } dual_sid2id;
 324                 struct {
 325                         fstring sid;
 326                         uint32_t type;
 327                         uint32_t id;
 328                 } dual_idmapset;
 329                 bool list_all_domains;
 330
 331                 struct {
 332                         uid_t uid;
 333                         fstring user;
 334                         /* the effective uid of the client, must be the uid for 'user'.
 335                            This is checked by the main daemon, trusted by children. */
 336                         /* if the blobs are length zero, then this doesn't
 337                            produce an actual challenge response. It merely
 338                            succeeds if there are cached credentials available
 339                            that could be used. */
 340                         uint32_t initial_blob_len; /* blobs in extra_data */
 341                         uint32_t challenge_blob_len;
 342                 } ccache_ntlm_auth;
 343                 struct {
 344                         uid_t uid;
 345                         fstring user;
 346                         fstring pass;
 347                 } ccache_save;
 348                 struct {
 349                         fstring domain_name;
 350                         fstring domain_guid;
 351                         fstring site_name;
 352                         uint32_t flags;
 353                 } dsgetdcname;
 354
 355                 /* padding -- needed to fix alignment between 32bit and 64bit libs.
 356                    The size is the sizeof the union without the padding aligned on
 357                    an 8 byte boundary.   --jerry */
 358
 359                 char padding[1800];
 360         } data;
 361         union {
 362                 SMB_TIME_T padding;
 363                 char *data;
 364         } extra_data;
 365         uint32_t extra_len;
 366         char null_term;
 367 };
 368
 369 /* Response values */
 370
 371 enum winbindd_result {
 372         WINBINDD_ERROR,
 373         WINBINDD_PENDING,
 374         WINBINDD_OK
 375 };
 376
 377 /* Winbind response structure */
 378
 379 /*******************************************************************************
 380  * This structure MUST be the same size in the 32bit and 64bit builds
 381  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 382  *
 383  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 384  * A 64BIT WINBINDD    --jerry
 385  ******************************************************************************/
 386
 387 struct winbindd_response {
 388
 389         /* Header information */
 390
 391         uint32_t length;                      /* Length of response */
 392         enum winbindd_result result;          /* Result code */
 393
 394         /* Fixed length return data */
 395
 396         union {
 397                 int interface_version;  /* Try to ensure this is always in the same spot... */
 398
 399                 fstring winsresp;               /* WINS response */
 400
 401                 /* getpwnam, getpwuid */
 402
 403                 struct winbindd_pw pw;
 404
 405                 /* getgrnam, getgrgid */
 406
 407                 struct winbindd_gr gr;
 408
 409                 uint32_t num_entries; /* getpwent, getgrent */
 410                 struct winbindd_sid {
 411                         fstring sid;        /* lookupname, [ug]id_to_sid */
 412                         int type;
 413                 } sid;
 414                 struct winbindd_name {
 415                         fstring dom_name;       /* lookupsid */
 416                         fstring name;
 417                         int type;
 418                 } name;
 419                 uid_t uid;          /* sid_to_uid */
 420                 gid_t gid;          /* sid_to_gid */
 421                 struct winbindd_info {
 422                         char winbind_separator;
 423                         fstring samba_version;
 424                 } info;
 425                 fstring domain_name;
 426                 fstring netbios_name;
 427                 fstring dc_name;
 428
 429                 struct auth_reply {
 430                         uint32_t nt_status;
 431                         fstring nt_status_string;
 432                         fstring error_string;
 433                         int pam_error;
 434                         char user_session_key[16];
 435                         char first_8_lm_hash[8];
 436                         fstring krb5ccname;
 437                         uint32_t reject_reason;
 438                         uint32_t padding;
 439                         struct policy_settings {
 440                                 uint32_t min_length_password;
 441                                 uint32_t password_history;
 442                                 uint32_t password_properties;
 443                                 uint32_t padding;
 444                                 SMB_TIME_T expire;
 445                                 SMB_TIME_T min_passwordage;
 446                         } policy;
 447                         struct info3_text {
 448                                 SMB_TIME_T logon_time;
 449                                 SMB_TIME_T logoff_time;
 450                                 SMB_TIME_T kickoff_time;
 451                                 SMB_TIME_T pass_last_set_time;
 452                                 SMB_TIME_T pass_can_change_time;
 453                                 SMB_TIME_T pass_must_change_time;
 454                                 uint32_t logon_count;
 455                                 uint32_t bad_pw_count;
 456                                 uint32_t user_rid;
 457                                 uint32_t group_rid;
 458                                 uint32_t num_groups;
 459                                 uint32_t user_flgs;
 460                                 uint32_t acct_flags;
 461                                 uint32_t num_other_sids;
 462                                 fstring dom_sid;
 463                                 fstring user_name;
 464                                 fstring full_name;
 465                                 fstring logon_script;
 466                                 fstring profile_path;
 467                                 fstring home_dir;
 468                                 fstring dir_drive;
 469                                 fstring logon_srv;
 470                                 fstring logon_dom;
 471                         } info3;
 472                         fstring unix_username;
 473                 } auth;
 474                 struct {
 475                         fstring name;
 476                         fstring alt_name;
 477                         fstring sid;
 478                         bool native_mode;
 479                         bool active_directory;
 480                         bool primary;
 481                 } domain_info;
 482                 uint32_t sequence_number;
 483                 struct {
 484                         fstring acct_name;
 485                         fstring full_name;
 486                         fstring homedir;
 487                         fstring shell;
 488                         uint32_t primary_gid;
 489                         uint32_t group_rid;
 490                 } user_info;
 491                 struct {
 492                         uint8_t session_key[16];
 493                         uint32_t auth_blob_len; /* blob in extra_data */
 494                 } ccache_ntlm_auth;
 495                 struct {
 496                         fstring dc_unc;
 497                         fstring dc_address;
 498                         uint32_t dc_address_type;
 499                         fstring domain_guid;
 500                         fstring domain_name;
 501                         fstring forest_name;
 502                         uint32_t dc_flags;
 503                         fstring dc_site_name;
 504                         fstring client_site_name;
 505                 } dsgetdcname;
 506         } data;
 507
 508         /* Variable length return data */
 509
 510         union {
 511                 SMB_TIME_T padding;
 512                 void *data;
 513         } extra_data;
 514 };
 515
 516 #endif