source3/include/passdb.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    passdb structures and parameters
   4    Copyright (C) Gerald Carter 2001
   5    Copyright (C) Luke Kenneth Casson Leighton 1998 - 2000
   6    Copyright (C) Andrew Bartlett 2002
   7    Copyright (C) Simo Sorce 2003
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #ifndef _PASSDB_H
  24 #define _PASSDB_H
  25
  26 #include "../librpc/gen_ndr/lsa.h"
  27
  28 #include "mapping.h"
  29
  30 /**********************************************************************
  31  * Masks for mappings between unix uid and gid types and
  32  * NT RIDS.
  33  **********************************************************************/
  34
  35 /* Take the bottom bit. */
  36 #define RID_TYPE_MASK           1
  37 #define RID_MULTIPLIER          2
  38
  39 /* The two common types. */
  40 #define USER_RID_TYPE           0
  41 #define GROUP_RID_TYPE          1
  42
  43 /*
  44  * Flags for local user manipulation.
  45  */
  46
  47 #define LOCAL_ADD_USER 0x1
  48 #define LOCAL_DELETE_USER 0x2
  49 #define LOCAL_DISABLE_USER 0x4
  50 #define LOCAL_ENABLE_USER 0x8
  51 #define LOCAL_TRUST_ACCOUNT 0x10
  52 #define LOCAL_SET_NO_PASSWORD 0x20
  53 #define LOCAL_SET_PASSWORD 0x40
  54 #define LOCAL_SET_LDAP_ADMIN_PW 0x80
  55 #define LOCAL_INTERDOM_ACCOUNT 0x100
  56 #define LOCAL_AM_ROOT 0x200  /* Act as root */
  57
  58 /*
  59  * Size of new password account encoding string.  This is enough space to
  60  * hold 11 ACB characters, plus the surrounding [] and a terminating null.
  61  * Do not change unless you are adding new ACB bits!
  62  */
  63
  64 #define NEW_PW_FORMAT_SPACE_PADDED_LEN 14
  65
  66 /* Password history contants. */
  67 #define PW_HISTORY_SALT_LEN 16
  68 #define SALTED_MD5_HASH_LEN 16
  69 #define PW_HISTORY_ENTRY_LEN (PW_HISTORY_SALT_LEN+SALTED_MD5_HASH_LEN)
  70 #define MAX_PW_HISTORY_LEN 24
  71
  72 /*
  73  * bit flags representing initialized fields in struct samu
  74  */
  75 enum pdb_elements {
  76         PDB_UNINIT,
  77         PDB_SMBHOME,
  78         PDB_PROFILE,
  79         PDB_DRIVE,
  80         PDB_LOGONSCRIPT,
  81         PDB_LOGONTIME,
  82         PDB_LOGOFFTIME,
  83         PDB_KICKOFFTIME,
  84         PDB_BAD_PASSWORD_TIME,
  85         PDB_CANCHANGETIME,
  86         PDB_MUSTCHANGETIME,
  87         PDB_PLAINTEXT_PW,
  88         PDB_USERNAME,
  89         PDB_FULLNAME,
  90         PDB_DOMAIN,
  91         PDB_NTUSERNAME,
  92         PDB_HOURSLEN,
  93         PDB_LOGONDIVS,
  94         PDB_USERSID,
  95         PDB_GROUPSID,
  96         PDB_ACCTCTRL,
  97         PDB_PASSLASTSET,
  98         PDB_ACCTDESC,
  99         PDB_WORKSTATIONS,
 100         PDB_COMMENT,
 101         PDB_MUNGEDDIAL,
 102         PDB_HOURS,
 103         PDB_FIELDS_PRESENT,
 104         PDB_BAD_PASSWORD_COUNT,
 105         PDB_LOGON_COUNT,
 106         PDB_COUNTRY_CODE,
 107         PDB_CODE_PAGE,
 108         PDB_UNKNOWN6,
 109         PDB_LMPASSWD,
 110         PDB_NTPASSWD,
 111         PDB_PWHISTORY,
 112         PDB_BACKEND_PRIVATE_DATA,
 113
 114         /* this must be the last element */
 115         PDB_COUNT
 116 };
 117
 118 enum pdb_group_elements {
 119         PDB_GROUP_NAME,
 120         PDB_GROUP_SID,
 121         PDB_GROUP_SID_NAME_USE,
 122         PDB_GROUP_MEMBERS,
 123
 124         /* this must be the last element */
 125         PDB_GROUP_COUNT
 126 };
 127
 128
 129 enum pdb_value_state {
 130         PDB_DEFAULT=0,
 131         PDB_SET,
 132         PDB_CHANGED
 133 };
 134
 135 #define IS_SAM_SET(x, flag)     (pdb_get_init_flags(x, flag) == PDB_SET)
 136 #define IS_SAM_CHANGED(x, flag) (pdb_get_init_flags(x, flag) == PDB_CHANGED)
 137 #define IS_SAM_DEFAULT(x, flag) (pdb_get_init_flags(x, flag) == PDB_DEFAULT)
 138
 139 /* cache for bad password lockout data, to be used on replicated SAMs */
 140 struct login_cache {
 141         time_t entry_timestamp;
 142         uint32_t acct_ctrl;
 143         uint16_t bad_password_count;
 144         time_t bad_password_time;
 145 };
 146
 147 #define SAMU_BUFFER_V0          0
 148 #define SAMU_BUFFER_V1          1
 149 #define SAMU_BUFFER_V2          2
 150 #define SAMU_BUFFER_V3          3
 151 /* nothing changed from V3 to V4 */
 152 #define SAMU_BUFFER_V4          4
 153 #define SAMU_BUFFER_LATEST      SAMU_BUFFER_V4
 154
 155 #define MAX_HOURS_LEN 32
 156
 157 struct samu {
 158         struct pdb_methods *methods;
 159
 160         /* initialization flags */
 161         struct bitmap *change_flags;
 162         struct bitmap *set_flags;
 163
 164         time_t logon_time;            /* logon time */
 165         time_t logoff_time;           /* logoff time */
 166         time_t kickoff_time;          /* kickoff time */
 167         time_t bad_password_time;     /* last bad password entered */
 168         time_t pass_last_set_time;    /* password last set time */
 169         time_t pass_can_change_time;  /* password can change time */
 170         time_t pass_must_change_time; /* password must change time */
 171
 172         const char *username;     /* UNIX username string */
 173         const char *domain;       /* Windows Domain name */
 174         const char *nt_username;  /* Windows username string */
 175         const char *full_name;    /* user's full name string */
 176         const char *home_dir;     /* home directory string */
 177         const char *dir_drive;    /* home directory drive string */
 178         const char *logon_script; /* logon script string */
 179         const char *profile_path; /* profile path string */
 180         const char *acct_desc;    /* user description string */
 181         const char *workstations; /* login from workstations string */
 182         const char *comment;
 183         const char *munged_dial;  /* munged path name and dial-back tel number */
 184
 185         struct dom_sid user_sid;
 186         struct dom_sid *group_sid;
 187
 188         DATA_BLOB lm_pw; /* .data is Null if no password */
 189         DATA_BLOB nt_pw; /* .data is Null if no password */
 190         DATA_BLOB nt_pw_his; /* nt hashed password history .data is Null if not available */
 191         char* plaintext_pw; /* is Null if not available */
 192
 193         uint32_t acct_ctrl; /* account info (ACB_xxxx bit-mask) */
 194         uint32_t fields_present; /* 0x00ff ffff */
 195
 196         uint16_t logon_divs; /* 168 - number of hours in a week */
 197         uint32_t hours_len; /* normally 21 bytes */
 198         uint8_t hours[MAX_HOURS_LEN];
 199
 200         /* Was unknown_5. */
 201         uint16_t bad_password_count;
 202         uint16_t logon_count;
 203
 204         uint16_t country_code;
 205         uint16_t code_page;
 206
 207         uint32_t unknown_6; /* 0x0000 04ec */
 208
 209         /* a tag for who added the private methods */
 210
 211         const struct pdb_methods *backend_private_methods;
 212         void *backend_private_data;
 213         void (*backend_private_data_free_fn)(void **);
 214
 215         /* maintain a copy of the user's struct passwd */
 216
 217         struct passwd *unix_pw;
 218 };
 219
 220 struct acct_info {
 221         fstring acct_name; /* account name */
 222         fstring acct_desc; /* account name */
 223         uint32_t rid; /* domain-relative RID */
 224 };
 225
 226 struct samr_displayentry {
 227         uint32_t idx;
 228         uint32_t rid;
 229         uint32_t acct_flags;
 230         const char *account_name;
 231         const char *fullname;
 232         const char *description;
 233 };
 234
 235 enum pdb_search_type {
 236         PDB_USER_SEARCH,
 237         PDB_GROUP_SEARCH,
 238         PDB_ALIAS_SEARCH
 239 };
 240
 241 struct pdb_search {
 242         enum pdb_search_type type;
 243         struct samr_displayentry *cache;
 244         uint32_t num_entries;
 245         ssize_t cache_size;
 246         bool search_ended;
 247         void *private_data;
 248         bool (*next_entry)(struct pdb_search *search,
 249                            struct samr_displayentry *entry);
 250         void (*search_end)(struct pdb_search *search);
 251 };
 252
 253 struct pdb_domain_info {
 254         char *name;
 255         char *dns_domain;
 256         char *dns_forest;
 257         struct dom_sid sid;
 258         struct GUID guid;
 259 };
 260
 261 struct pdb_trusted_domain {
 262         char *domain_name;
 263         char *netbios_name;
 264         struct dom_sid security_identifier;
 265         DATA_BLOB trust_auth_incoming;
 266         DATA_BLOB trust_auth_outgoing;
 267         uint32_t trust_direction;
 268         uint32_t trust_type;
 269         uint32_t trust_attributes;
 270         uint32_t *trust_posix_offset;
 271         uint32_t *supported_enc_type;
 272         DATA_BLOB trust_forest_trust_info;
 273 };
 274
 275 /*
 276  * trusted domain entry/entries returned by secrets_get_trusted_domains
 277  * (used in _lsa_enum_trust_dom call)
 278  */
 279 struct trustdom_info {
 280         char *name;
 281         struct dom_sid sid;
 282 };
 283
 284 /*
 285  * Types of account policy.
 286  */
 287 enum pdb_policy_type {
 288         PDB_POLICY_MIN_PASSWORD_LEN = 1,
 289         PDB_POLICY_PASSWORD_HISTORY = 2,
 290         PDB_POLICY_USER_MUST_LOGON_TO_CHG_PASS  = 3,
 291         PDB_POLICY_MAX_PASSWORD_AGE = 4,
 292         PDB_POLICY_MIN_PASSWORD_AGE = 5,
 293         PDB_POLICY_LOCK_ACCOUNT_DURATION = 6,
 294         PDB_POLICY_RESET_COUNT_TIME = 7,
 295         PDB_POLICY_BAD_ATTEMPT_LOCKOUT = 8,
 296         PDB_POLICY_TIME_TO_LOGOUT = 9,
 297         PDB_POLICY_REFUSE_MACHINE_PW_CHANGE = 10
 298 };
 299
 300 #define PDB_CAP_STORE_RIDS              0x0001
 301 #define PDB_CAP_ADS                     0x0002
 302 #define PDB_CAP_TRUSTED_DOMAINS_EX      0x0004
 303
 304 /*****************************************************************
 305  Functions to be implemented by the new (v2) passdb API
 306 ****************************************************************/
 307
 308 /*
 309  * This next constant specifies the version number of the PASSDB interface
 310  * this SAMBA will load. Increment this if *ANY* changes are made to the interface.
 311  * Changed interface to fix int -> size_t problems. JRA.
 312  * There's no point in allocating arrays in
 313  * samr_lookup_rids twice. It was done in the srv_samr_nt.c code as well as in
 314  * the pdb module. Remove the latter, this might happen more often. VL.
 315  * changed to version 14 to move lookup_rids and lookup_names to return
 316  * enum lsa_SidType rather than uint32_t.
 317  * Changed to 16 for access to the trusted domain passwords (obnox).
 318  * Changed to 17, the sampwent interface is gone.
 319  * Changed to 18, pdb_rid_algorithm -> pdb_capabilities
 320  * Changed to 19, removed uid_to_rid
 321  * Changed to 20, pdb_secret calls
 322  */
 323
 324 #define PASSDB_INTERFACE_VERSION 20
 325
 326 struct pdb_methods
 327 {
 328         const char *name; /* What name got this module */
 329
 330         struct pdb_domain_info *(*get_domain_info)(struct pdb_methods *,
 331                                                    TALLOC_CTX *mem_ctx);
 332
 333         NTSTATUS (*getsampwnam)(struct pdb_methods *, struct samu *sam_acct, const char *username);
 334
 335         NTSTATUS (*getsampwsid)(struct pdb_methods *, struct samu *sam_acct, const struct dom_sid *sid);
 336
 337         NTSTATUS (*create_user)(struct pdb_methods *, TALLOC_CTX *tmp_ctx,
 338                                 const char *name, uint32_t acct_flags,
 339                                 uint32_t *rid);
 340
 341         NTSTATUS (*delete_user)(struct pdb_methods *, TALLOC_CTX *tmp_ctx,
 342                                 struct samu *sam_acct);
 343
 344         NTSTATUS (*add_sam_account)(struct pdb_methods *, struct samu *sampass);
 345
 346         NTSTATUS (*update_sam_account)(struct pdb_methods *, struct samu *sampass);
 347
 348         NTSTATUS (*delete_sam_account)(struct pdb_methods *, struct samu *username);
 349
 350         NTSTATUS (*rename_sam_account)(struct pdb_methods *, struct samu *oldname, const char *newname);
 351
 352         NTSTATUS (*update_login_attempts)(struct pdb_methods *methods, struct samu *sam_acct, bool success);
 353
 354         NTSTATUS (*getgrsid)(struct pdb_methods *methods, GROUP_MAP *map, struct dom_sid sid);
 355
 356         NTSTATUS (*getgrgid)(struct pdb_methods *methods, GROUP_MAP *map, gid_t gid);
 357
 358         NTSTATUS (*getgrnam)(struct pdb_methods *methods, GROUP_MAP *map, const char *name);
 359
 360         NTSTATUS (*create_dom_group)(struct pdb_methods *methods,
 361                                      TALLOC_CTX *mem_ctx, const char *name,
 362                                      uint32_t *rid);
 363
 364         NTSTATUS (*delete_dom_group)(struct pdb_methods *methods,
 365                                      TALLOC_CTX *mem_ctx, uint32_t rid);
 366
 367         NTSTATUS (*add_group_mapping_entry)(struct pdb_methods *methods,
 368                                             GROUP_MAP *map);
 369
 370         NTSTATUS (*update_group_mapping_entry)(struct pdb_methods *methods,
 371                                                GROUP_MAP *map);
 372
 373         NTSTATUS (*delete_group_mapping_entry)(struct pdb_methods *methods,
 374                                                struct dom_sid sid);
 375
 376         NTSTATUS (*enum_group_mapping)(struct pdb_methods *methods,
 377                                        const struct dom_sid *sid, enum lsa_SidType sid_name_use,
 378                                        GROUP_MAP **pp_rmap, size_t *p_num_entries,
 379                                        bool unix_only);
 380
 381         NTSTATUS (*enum_group_members)(struct pdb_methods *methods,
 382                                        TALLOC_CTX *mem_ctx,
 383                                        const struct dom_sid *group,
 384                                        uint32_t **pp_member_rids,
 385                                        size_t *p_num_members);
 386
 387         NTSTATUS (*enum_group_memberships)(struct pdb_methods *methods,
 388                                            TALLOC_CTX *mem_ctx,
 389                                            struct samu *user,
 390                                            struct dom_sid **pp_sids, gid_t **pp_gids,
 391                                            uint32_t *p_num_groups);
 392
 393         NTSTATUS (*set_unix_primary_group)(struct pdb_methods *methods,
 394                                            TALLOC_CTX *mem_ctx,
 395                                            struct samu *user);
 396
 397         NTSTATUS (*add_groupmem)(struct pdb_methods *methods,
 398                                  TALLOC_CTX *mem_ctx,
 399                                  uint32_t group_rid, uint32_t member_rid);
 400
 401         NTSTATUS (*del_groupmem)(struct pdb_methods *methods,
 402                                  TALLOC_CTX *mem_ctx,
 403                                  uint32_t group_rid, uint32_t member_rid);
 404
 405         NTSTATUS (*create_alias)(struct pdb_methods *methods,
 406                                  const char *name, uint32_t *rid);
 407
 408         NTSTATUS (*delete_alias)(struct pdb_methods *methods,
 409                                  const struct dom_sid *sid);
 410
 411         NTSTATUS (*get_aliasinfo)(struct pdb_methods *methods,
 412                                   const struct dom_sid *sid,
 413                                   struct acct_info *info);
 414
 415         NTSTATUS (*set_aliasinfo)(struct pdb_methods *methods,
 416                                   const struct dom_sid *sid,
 417                                   struct acct_info *info);
 418
 419         NTSTATUS (*add_aliasmem)(struct pdb_methods *methods,
 420                                  const struct dom_sid *alias, const struct dom_sid *member);
 421         NTSTATUS (*del_aliasmem)(struct pdb_methods *methods,
 422                                  const struct dom_sid *alias, const struct dom_sid *member);
 423         NTSTATUS (*enum_aliasmem)(struct pdb_methods *methods,
 424                                   const struct dom_sid *alias, TALLOC_CTX *mem_ctx,
 425                                   struct dom_sid **members, size_t *p_num_members);
 426         NTSTATUS (*enum_alias_memberships)(struct pdb_methods *methods,
 427                                            TALLOC_CTX *mem_ctx,
 428                                            const struct dom_sid *domain_sid,
 429                                            const struct dom_sid *members,
 430                                            size_t num_members,
 431                                            uint32_t **pp_alias_rids,
 432                                            size_t *p_num_alias_rids);
 433
 434         NTSTATUS (*lookup_rids)(struct pdb_methods *methods,
 435                                 const struct dom_sid *domain_sid,
 436                                 int num_rids,
 437                                 uint32_t *rids,
 438                                 const char **pp_names,
 439                                 enum lsa_SidType *attrs);
 440
 441         NTSTATUS (*lookup_names)(struct pdb_methods *methods,
 442                                  const struct dom_sid *domain_sid,
 443                                  int num_names,
 444                                  const char **pp_names,
 445                                  uint32_t *rids,
 446                                  enum lsa_SidType *attrs);
 447
 448         NTSTATUS (*get_account_policy)(struct pdb_methods *methods,
 449                                        enum pdb_policy_type type,
 450                                        uint32_t *value);
 451
 452         NTSTATUS (*set_account_policy)(struct pdb_methods *methods,
 453                                        enum pdb_policy_type type,
 454                                        uint32_t value);
 455
 456         NTSTATUS (*get_seq_num)(struct pdb_methods *methods, time_t *seq_num);
 457
 458         bool (*search_users)(struct pdb_methods *methods,
 459                              struct pdb_search *search,
 460                              uint32_t acct_flags);
 461         bool (*search_groups)(struct pdb_methods *methods,
 462                               struct pdb_search *search);
 463         bool (*search_aliases)(struct pdb_methods *methods,
 464                                struct pdb_search *search,
 465                                const struct dom_sid *sid);
 466
 467         bool (*uid_to_sid)(struct pdb_methods *methods, uid_t uid,
 468                            struct dom_sid *sid);
 469         bool (*gid_to_sid)(struct pdb_methods *methods, gid_t gid,
 470                            struct dom_sid *sid);
 471         bool (*sid_to_id)(struct pdb_methods *methods, const struct dom_sid *sid,
 472                           union unid_t *id, enum lsa_SidType *type);
 473
 474         uint32_t (*capabilities)(struct pdb_methods *methods);
 475         bool (*new_rid)(struct pdb_methods *methods, uint32_t *rid);
 476
 477
 478         bool (*get_trusteddom_pw)(struct pdb_methods *methods,
 479                                   const char *domain, char** pwd,
 480                                   struct dom_sid *sid, time_t *pass_last_set_time);
 481         bool (*set_trusteddom_pw)(struct pdb_methods *methods,
 482                                   const char* domain, const char* pwd,
 483                                   const struct dom_sid *sid);
 484         bool (*del_trusteddom_pw)(struct pdb_methods *methods,
 485                                   const char *domain);
 486         NTSTATUS (*enum_trusteddoms)(struct pdb_methods *methods,
 487                                      TALLOC_CTX *mem_ctx, uint32_t *num_domains,
 488                                      struct trustdom_info ***domains);
 489
 490         NTSTATUS (*get_trusted_domain)(struct pdb_methods *methods,
 491                                        TALLOC_CTX *mem_ctx,
 492                                        const char *domain,
 493                                        struct pdb_trusted_domain **td);
 494         NTSTATUS (*get_trusted_domain_by_sid)(struct pdb_methods *methods,
 495                                               TALLOC_CTX *mem_ctx,
 496                                               struct dom_sid *sid,
 497                                               struct pdb_trusted_domain **td);
 498         NTSTATUS (*set_trusted_domain)(struct pdb_methods *methods,
 499                                        const char* domain,
 500                                        const struct pdb_trusted_domain *td);
 501         NTSTATUS (*del_trusted_domain)(struct pdb_methods *methods,
 502                                        const char *domain);
 503         NTSTATUS (*enum_trusted_domains)(struct pdb_methods *methods,
 504                                          TALLOC_CTX *mem_ctx,
 505                                          uint32_t *num_domains,
 506                                          struct pdb_trusted_domain ***domains);
 507
 508         NTSTATUS (*get_secret)(struct pdb_methods *methods,
 509                                TALLOC_CTX *mem_ctx,
 510                                const char *secret_name,
 511                                DATA_BLOB *secret_current,
 512                                NTTIME *secret_current_lastchange,
 513                                DATA_BLOB *secret_old,
 514                                NTTIME *secret_old_lastchange,
 515                                struct security_descriptor **sd);
 516         NTSTATUS (*set_secret)(struct pdb_methods *methods,
 517                                const char *secret_name,
 518                                DATA_BLOB *secret_current,
 519                                DATA_BLOB *secret_old,
 520                                struct security_descriptor *sd);
 521         NTSTATUS (*delete_secret)(struct pdb_methods *methods,
 522                                   const char *secret_name);
 523
 524         void *private_data;  /* Private data of some kind */
 525
 526         void (*free_private_data)(void **);
 527 };
 528
 529 typedef NTSTATUS (*pdb_init_function)(struct pdb_methods **, const char *);
 530
 531 struct pdb_init_function_entry {
 532         const char *name;
 533
 534         /* Function to create a member of the pdb_methods list */
 535         pdb_init_function init;
 536
 537         struct pdb_init_function_entry *prev, *next;
 538 };
 539
 540 #include "passdb/proto.h"
 541 #include "passdb/machine_sid.h"
 542 #include "passdb/lookup_sid.h"
 543
 544 #endif /* _PASSDB_H */