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 _WINBINDD_NTDOM_H
  19 #define _WINBINDD_NTDOM_H
  20
  21 #define WINBINDD_SOCKET_NAME "pipe"            /* Name of PF_UNIX socket */
  22
  23 /* Let the build environment override the public winbindd socket location. This
  24  * is needed for launchd support -- jpeach.
  25  */
  26 #ifndef WINBINDD_SOCKET_DIR
  27 #define WINBINDD_SOCKET_DIR  "/tmp/.winbindd"  /* Name of PF_UNIX dir */
  28 #endif
  29
  30 /*
  31  * when compiled with socket_wrapper support
  32  * the location of the WINBINDD_SOCKET_DIR
  33  * can be overwritten via an environment variable
  34  */
  35 #define WINBINDD_SOCKET_DIR_ENVVAR "WINBINDD_SOCKET_DIR"
  36
  37 #define WINBINDD_PRIV_SOCKET_SUBDIR "winbindd_privileged" /* name of subdirectory of lp_lockdir() to hold the 'privileged' pipe */
  38 #define WINBINDD_DOMAIN_ENV  "WINBINDD_DOMAIN" /* Environment variables */
  39 #define WINBINDD_DONT_ENV    "_NO_WINBINDD"
  40 #define WINBINDD_LOCATOR_KDC_ADDRESS "WINBINDD_LOCATOR_KDC_ADDRESS"
  41
  42 /* Update this when you change the interface.
  43  * 21: added WINBINDD_GETPWSID
  44  *     added WINBINDD_GETSIDALIASES
  45  */
  46 #define WINBIND_INTERFACE_VERSION 21
  47
  48 /* Have to deal with time_t being 4 or 8 bytes due to structure alignment.
  49    On a 64bit Linux box, we have to support a constant structure size
  50    between /lib/libnss_winbind.so.2 and /li64/libnss_winbind.so.2.
  51    The easiest way to do this is to always use 8byte values for time_t. */
  52
  53 #define SMB_TIME_T int64_t
  54
  55 /* Socket commands */
  56
  57 enum winbindd_cmd {
  58
  59         WINBINDD_INTERFACE_VERSION,    /* Always a well known value */
  60
  61         /* Get users and groups */
  62
  63         WINBINDD_GETPWNAM,
  64         WINBINDD_GETPWUID,
  65         WINBINDD_GETPWSID,
  66         WINBINDD_GETGRNAM,
  67         WINBINDD_GETGRGID,
  68         WINBINDD_GETGROUPS,
  69
  70         /* Enumerate users and groups */
  71
  72         WINBINDD_SETPWENT,
  73         WINBINDD_ENDPWENT,
  74         WINBINDD_GETPWENT,
  75         WINBINDD_SETGRENT,
  76         WINBINDD_ENDGRENT,
  77         WINBINDD_GETGRENT,
  78
  79         /* PAM authenticate and password change */
  80
  81         WINBINDD_PAM_AUTH,
  82         WINBINDD_PAM_AUTH_CRAP,
  83         WINBINDD_PAM_CHAUTHTOK,
  84         WINBINDD_PAM_LOGOFF,
  85         WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,
  86
  87         /* List various things */
  88
  89         WINBINDD_LIST_USERS,         /* List w/o rid->id mapping */
  90         WINBINDD_LIST_GROUPS,        /* Ditto */
  91         WINBINDD_LIST_TRUSTDOM,
  92
  93         /* SID conversion */
  94
  95         WINBINDD_LOOKUPSID,
  96         WINBINDD_LOOKUPNAME,
  97         WINBINDD_LOOKUPRIDS,
  98
  99         /* Lookup functions */
 100
 101         WINBINDD_SID_TO_UID,
 102         WINBINDD_SID_TO_GID,
 103         WINBINDD_SIDS_TO_XIDS,
 104         WINBINDD_UID_TO_SID,
 105         WINBINDD_GID_TO_SID,
 106
 107         WINBINDD_ALLOCATE_UID,
 108         WINBINDD_ALLOCATE_GID,
 109         WINBINDD_SET_MAPPING,
 110         WINBINDD_REMOVE_MAPPING,
 111         WINBINDD_SET_HWM,
 112
 113         /* Miscellaneous other stuff */
 114
 115         WINBINDD_CHECK_MACHACC,     /* Check machine account pw works */
 116         WINBINDD_PING,              /* Just tell me winbind is running */
 117         WINBINDD_INFO,              /* Various bit of info.  Currently just tidbits */
 118         WINBINDD_DOMAIN_NAME,       /* The domain this winbind server is a member of (lp_workgroup()) */
 119
 120         WINBINDD_DOMAIN_INFO,   /* Most of what we know from
 121                                    struct winbindd_domain */
 122         WINBINDD_GETDCNAME,     /* Issue a GetDCName Request */
 123         WINBINDD_DSGETDCNAME,   /* Issue a DsGetDCName Request */
 124
 125         WINBINDD_SHOW_SEQUENCE, /* display sequence numbers of domains */
 126
 127         /* WINS commands */
 128
 129         WINBINDD_WINS_BYIP,
 130         WINBINDD_WINS_BYNAME,
 131
 132         /* this is like GETGRENT but gives an empty group list */
 133         WINBINDD_GETGRLST,
 134
 135         WINBINDD_NETBIOS_NAME,       /* The netbios name of the server */
 136
 137         /* find the location of our privileged pipe */
 138         WINBINDD_PRIV_PIPE_DIR,
 139
 140         /* return a list of group sids for a user sid */
 141         WINBINDD_GETUSERSIDS,
 142
 143         /* Various group queries */
 144         WINBINDD_GETUSERDOMGROUPS,
 145
 146         /* lookup local groups */
 147         WINBINDD_GETSIDALIASES,
 148
 149         /* Initialize connection in a child */
 150         WINBINDD_INIT_CONNECTION,
 151
 152         /* Blocking calls that are not allowed on the main winbind pipe, only
 153          * between parent and children */
 154         WINBINDD_DUAL_SID2UID,
 155         WINBINDD_DUAL_SID2GID,
 156         WINBINDD_DUAL_SIDS2XIDS,
 157         WINBINDD_DUAL_UID2SID,
 158         WINBINDD_DUAL_GID2SID,
 159         WINBINDD_DUAL_SET_MAPPING,
 160         WINBINDD_DUAL_REMOVE_MAPPING,
 161         WINBINDD_DUAL_SET_HWM,
 162
 163         /* Wrapper around possibly blocking unix nss calls */
 164         WINBINDD_DUAL_USERINFO,
 165         WINBINDD_DUAL_GETSIDALIASES,
 166
 167         /* Complete the challenge phase of the NTLM authentication
 168            protocol using cached password. */
 169         WINBINDD_CCACHE_NTLMAUTH,
 170
 171         WINBINDD_NUM_CMDS
 172 };
 173
 174 typedef struct winbindd_pw {
 175         fstring pw_name;
 176         fstring pw_passwd;
 177         uid_t pw_uid;
 178         gid_t pw_gid;
 179         fstring pw_gecos;
 180         fstring pw_dir;
 181         fstring pw_shell;
 182 } WINBINDD_PW;
 183
 184
 185 typedef struct winbindd_gr {
 186         fstring gr_name;
 187         fstring gr_passwd;
 188         gid_t gr_gid;
 189         uint32_t num_gr_mem;
 190         uint32_t gr_mem_ofs;   /* offset to group membership */
 191 } WINBINDD_GR;
 192
 193 /* PAM specific request flags */
 194 #define WBFLAG_PAM_INFO3_NDR            0x00000001
 195 #define WBFLAG_PAM_INFO3_TEXT           0x00000002
 196 #define WBFLAG_PAM_USER_SESSION_KEY     0x00000004
 197 #define WBFLAG_PAM_LMKEY                0x00000008
 198 #define WBFLAG_PAM_CONTACT_TRUSTDOM     0x00000010
 199 #define WBFLAG_PAM_UNIX_NAME            0x00000080
 200 #define WBFLAG_PAM_AFS_TOKEN            0x00000100
 201 #define WBFLAG_PAM_NT_STATUS_SQUASH     0x00000200
 202 #define WBFLAG_PAM_KRB5                 0x00001000
 203 #define WBFLAG_PAM_FALLBACK_AFTER_KRB5  0x00002000
 204 #define WBFLAG_PAM_CACHED_LOGIN         0x00004000
 205 #define WBFLAG_PAM_GET_PWD_POLICY       0x00008000
 206
 207 /* generic request flags */
 208 #define WBFLAG_QUERY_ONLY               0x00000020      /* not used */
 209 /* This is a flag that can only be sent from parent to child */
 210 #define WBFLAG_IS_PRIVILEGED            0x00000400      /* not used */
 211 /* Flag to say this is a winbindd internal send - don't recurse. */
 212 #define WBFLAG_RECURSE                  0x00000800
 213 /* Flag to tell winbind the NTLMv2 blob is too big for the struct and is in the
 214  * extra_data field */
 215 #define WBFLAG_BIG_NTLMV2_BLOB          0x00010000
 216
 217 #define WINBINDD_MAX_EXTRA_DATA (128*1024)
 218
 219 /* Winbind request structure */
 220
 221 /*******************************************************************************
 222  * This structure MUST be the same size in the 32bit and 64bit builds
 223  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 224  *
 225  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 226  * A 64BIT WINBINDD    --jerry
 227  ******************************************************************************/
 228
 229 struct winbindd_request {
 230         uint32_t length;
 231         enum winbindd_cmd cmd;   /* Winbindd command to execute */
 232         enum winbindd_cmd original_cmd;   /* Original Winbindd command
 233                                              issued to parent process */
 234         pid_t pid;               /* pid of calling process */
 235         uint32_t wb_flags;       /* generic flags */
 236         uint32_t flags;          /* flags relevant *only* to a given request */
 237         fstring domain_name;    /* name of domain for which the request applies */
 238
 239         union {
 240                 fstring winsreq;     /* WINS request */
 241                 fstring username;    /* getpwnam */
 242                 fstring groupname;   /* getgrnam */
 243                 uid_t uid;           /* getpwuid, uid_to_sid */
 244                 gid_t gid;           /* getgrgid, gid_to_sid */
 245                 struct {
 246                         /* We deliberatedly don't split into domain/user to
 247                            avoid having the client know what the separator
 248                            character is. */
 249                         fstring user;
 250                         fstring pass;
 251                         char require_membership_of_sid[1024];
 252                         fstring krb5_cc_type;
 253                         uid_t uid;
 254                 } auth;              /* pam_winbind auth module */
 255                 struct {
 256                         uint8_t chal[8];
 257                         uint32_t logon_parameters;
 258                         fstring user;
 259                         fstring domain;
 260                         fstring lm_resp;
 261                         uint32_t lm_resp_len;
 262                         fstring nt_resp;
 263                         uint32_t nt_resp_len;
 264                         fstring workstation;
 265                         fstring require_membership_of_sid;
 266                 } auth_crap;
 267                 struct {
 268                     fstring user;
 269                     fstring oldpass;
 270                     fstring newpass;
 271                 } chauthtok;         /* pam_winbind passwd module */
 272                 struct {
 273                         fstring user;
 274                         fstring domain;
 275                         uint8_t new_nt_pswd[516];
 276                         uint16_t new_nt_pswd_len;
 277                         uint8_t old_nt_hash_enc[16];
 278                         uint16_t old_nt_hash_enc_len;
 279                         uint8_t new_lm_pswd[516];
 280                         uint16_t new_lm_pswd_len;
 281                         uint8_t old_lm_hash_enc[16];
 282                         uint16_t old_lm_hash_enc_len;
 283                 } chng_pswd_auth_crap;/* pam_winbind passwd module */
 284                 struct {
 285                         fstring user;
 286                         fstring krb5ccname;
 287                         uid_t uid;
 288                 } logoff;              /* pam_winbind session module */
 289                 fstring sid;         /* lookupsid, sid_to_[ug]id */
 290                 struct {
 291                         fstring dom_name;       /* lookupname */
 292                         fstring name;
 293                 } name;
 294                 uint32_t num_entries;  /* getpwent, getgrent */
 295                 struct {
 296                         fstring username;
 297                         fstring groupname;
 298                 } acct_mgt;
 299                 struct {
 300                         bool is_primary;
 301                         fstring dcname;
 302                 } init_conn;
 303                 struct {
 304                         fstring sid;
 305                         fstring name;
 306                 } dual_sid2id;
 307                 struct {
 308                         fstring sid;
 309                         uint32_t type;
 310                         uint32_t id;
 311                 } dual_idmapset;
 312                 bool list_all_domains;
 313
 314                 struct {
 315                         uid_t uid;
 316                         fstring user;
 317                         /* the effective uid of the client, must be the uid for 'user'.
 318                            This is checked by the main daemon, trusted by children. */
 319                         /* if the blobs are length zero, then this doesn't
 320                            produce an actual challenge response. It merely
 321                            succeeds if there are cached credentials available
 322                            that could be used. */
 323                         uint32_t initial_blob_len; /* blobs in extra_data */
 324                         uint32_t challenge_blob_len;
 325                 } ccache_ntlm_auth;
 326                 struct {
 327                         fstring domain_name;
 328                         fstring domain_guid;
 329                         fstring site_name;
 330                         uint32_t flags;
 331                 } dsgetdcname;
 332
 333                 /* padding -- needed to fix alignment between 32bit and 64bit libs.
 334                    The size is the sizeof the union without the padding aligned on
 335                    an 8 byte boundary.   --jerry */
 336
 337                 char padding[1800];
 338         } data;
 339         union {
 340                 SMB_TIME_T padding;
 341                 char *data;
 342         } extra_data;
 343         uint32_t extra_len;
 344         char null_term;
 345 };
 346
 347 /* Response values */
 348
 349 enum winbindd_result {
 350         WINBINDD_ERROR,
 351         WINBINDD_PENDING,
 352         WINBINDD_OK
 353 };
 354
 355 /* Winbind response structure */
 356
 357 /*******************************************************************************
 358  * This structure MUST be the same size in the 32bit and 64bit builds
 359  * for compatibility between /lib64/libnss_winbind.so and /lib/libnss_winbind.so
 360  *
 361  * DO NOT CHANGE THIS STRUCTURE WITHOUT TESTING THE 32BIT NSS LIB AGAINST
 362  * A 64BIT WINBINDD    --jerry
 363  ******************************************************************************/
 364
 365 struct winbindd_response {
 366
 367         /* Header information */
 368
 369         uint32_t length;                      /* Length of response */
 370         enum winbindd_result result;          /* Result code */
 371
 372         /* Fixed length return data */
 373
 374         union {
 375                 int interface_version;  /* Try to ensure this is always in the same spot... */
 376
 377                 fstring winsresp;               /* WINS response */
 378
 379                 /* getpwnam, getpwuid */
 380
 381                 struct winbindd_pw pw;
 382
 383                 /* getgrnam, getgrgid */
 384
 385                 struct winbindd_gr gr;
 386
 387                 uint32_t num_entries; /* getpwent, getgrent */
 388                 struct winbindd_sid {
 389                         fstring sid;        /* lookupname, [ug]id_to_sid */
 390                         int type;
 391                 } sid;
 392                 struct winbindd_name {
 393                         fstring dom_name;       /* lookupsid */
 394                         fstring name;
 395                         int type;
 396                 } name;
 397                 uid_t uid;          /* sid_to_uid */
 398                 gid_t gid;          /* sid_to_gid */
 399                 struct winbindd_info {
 400                         char winbind_separator;
 401                         fstring samba_version;
 402                 } info;
 403                 fstring domain_name;
 404                 fstring netbios_name;
 405                 fstring dc_name;
 406
 407                 struct auth_reply {
 408                         uint32_t nt_status;
 409                         fstring nt_status_string;
 410                         fstring error_string;
 411                         int pam_error;
 412                         char user_session_key[16];
 413                         char first_8_lm_hash[8];
 414                         fstring krb5ccname;
 415                         uint32_t reject_reason;
 416                         uint32_t padding;
 417                         struct policy_settings {
 418                                 uint32_t min_length_password;
 419                                 uint32_t password_history;
 420                                 uint32_t password_properties;
 421                                 uint32_t padding;
 422                                 SMB_TIME_T expire;
 423                                 SMB_TIME_T min_passwordage;
 424                         } policy;
 425                         struct info3_text {
 426                                 SMB_TIME_T logon_time;
 427                                 SMB_TIME_T logoff_time;
 428                                 SMB_TIME_T kickoff_time;
 429                                 SMB_TIME_T pass_last_set_time;
 430                                 SMB_TIME_T pass_can_change_time;
 431                                 SMB_TIME_T pass_must_change_time;
 432                                 uint32_t logon_count;
 433                                 uint32_t bad_pw_count;
 434                                 uint32_t user_rid;
 435                                 uint32_t group_rid;
 436                                 uint32_t num_groups;
 437                                 uint32_t user_flgs;
 438                                 uint32_t acct_flags;
 439                                 uint32_t num_other_sids;
 440                                 fstring dom_sid;
 441                                 fstring user_name;
 442                                 fstring full_name;
 443                                 fstring logon_script;
 444                                 fstring profile_path;
 445                                 fstring home_dir;
 446                                 fstring dir_drive;
 447                                 fstring logon_srv;
 448                                 fstring logon_dom;
 449                         } info3;
 450                         fstring unix_username;
 451                 } auth;
 452                 struct {
 453                         fstring name;
 454                         fstring alt_name;
 455                         fstring sid;
 456                         bool native_mode;
 457                         bool active_directory;
 458                         bool primary;
 459                 } domain_info;
 460                 uint32_t sequence_number;
 461                 struct {
 462                         fstring acct_name;
 463                         fstring full_name;
 464                         fstring homedir;
 465                         fstring shell;
 466                         uint32_t primary_gid;
 467                         uint32_t group_rid;
 468                 } user_info;
 469                 struct {
 470                         uint32_t auth_blob_len; /* blob in extra_data */
 471                 } ccache_ntlm_auth;
 472                 struct {
 473                         fstring dc_unc;
 474                         fstring dc_address;
 475                         uint32_t dc_address_type;
 476                         fstring domain_guid;
 477                         fstring domain_name;
 478                         fstring forest_name;
 479                         uint32_t dc_flags;
 480                         fstring dc_site_name;
 481                         fstring client_site_name;
 482                 } dsgetdcname;
 483         } data;
 484
 485         /* Variable length return data */
 486
 487         union {
 488                 SMB_TIME_T padding;
 489                 void *data;
 490         } extra_data;
 491 };
 492
 493 #endif