source3/auth/proto.h

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Password and authentication handling
   4  *
   5  *  Copyright (C) Andrew Tridgell               1992-2001
   6  *  Copyright (C) Luke Kenneth Casson Leighton  1996-2000
   7  *  Copyright (C) Jeremy Allison                1997-2001
   8  *  Copyright (C) John H Terpsta                1999-2001
   9  *  Copyright (C) Tim Potter                    2000
  10  *  Copyright (C) Andrew Bartlett               2001-2003
  11  *  Copyright (C) Jelmer Vernooij               2002
  12  *  Copyright (C) Rafal Szczesniak              2002
  13  *  Copyright (C) Gerald Carter                 2003
  14  *  Copyright (C) Volker Lendecke               2006,2010
  15  *  Copyright (C) Michael Adam                  2007
  16  *  Copyright (C) Dan Sledz                     2009
  17  *  Copyright (C) Simo Sorce                    2010
  18  *
  19  *  This program is free software; you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License as published by
  21  *  the Free Software Foundation; either version 3 of the License, or
  22  *  (at your option) any later version.
  23  *
  24  *  This program is distributed in the hope that it will be useful,
  25  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27  *  GNU General Public License for more details.
  28  *
  29  *  You should have received a copy of the GNU General Public License
  30  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  31  */
  32
  33 #ifndef _AUTH_PROTO_H_
  34 #define _AUTH_PROTO_H_
  35
  36 /* The following definitions come from auth/auth.c  */
  37
  38 NTSTATUS smb_register_auth(int version, const char *name, auth_init_function init);
  39 bool load_auth_module(struct auth_context *auth_context,
  40                       const char *module, auth_methods **ret) ;
  41 NTSTATUS make_auth3_context_for_ntlm(TALLOC_CTX *mem_ctx,
  42                                      struct auth_context **auth_context);
  43 NTSTATUS make_auth3_context_for_netlogon(TALLOC_CTX *mem_ctx,
  44                                          struct auth_context **auth_context);
  45 NTSTATUS make_auth3_context_for_winbind(TALLOC_CTX *mem_ctx,
  46                                         struct auth_context **auth_context);
  47 bool auth3_context_set_challenge(struct auth_context *ctx, uint8_t chal[8],
  48                                  const char *challenge_set_by);
  49
  50 /****************************************************************************
  51  Try to get a challenge out of the various authentication modules.
  52  Returns a const char of length 8 bytes.
  53 ****************************************************************************/
  54
  55 NTSTATUS auth_get_ntlm_challenge(struct auth_context *auth_context,
  56                                  uint8_t chal[8]);
  57
  58 /**
  59  * Check a user's Plaintext, LM or NTLM password.
  60  *
  61  * Check a user's password, as given in the user_info struct and return various
  62  * interesting details in the server_info struct.
  63  *
  64  * This function does NOT need to be in a become_root()/unbecome_root() pair
  65  * as it makes the calls itself when needed.
  66  *
  67  * The return value takes precedence over the contents of the server_info
  68  * struct.  When the return is other than NT_STATUS_OK the contents
  69  * of that structure is undefined.
  70  *
  71  * @param mem_ctx   The memory context to use to allocate server_info
  72  *
  73  * @param user_info Contains the user supplied components, including the passwords.
  74  *                  Must be created with make_user_info() or one of its wrappers.
  75  *
  76  * @param auth_context Supplies the challenges and some other data.
  77  *                  Must be created with make_auth_context(), and the challenges should be
  78  *                  filled in, either at creation or by calling the challenge geneation
  79  *                  function auth_get_challenge().
  80  *
  81  * @param pserver_info If successful, contains information about the authentication,
  82  *                     including a struct samu struct describing the user.
  83  *
  84  * @param pauthoritative Indicates if the result should be treated as final
  85  *                       result.
  86  *
  87  * @return An NTSTATUS with NT_STATUS_OK or an appropriate error.
  88  *
  89  **/
  90 NTSTATUS auth_check_ntlm_password(TALLOC_CTX *mem_ctx,
  91                                   const struct auth_context *auth_context,
  92                                   const struct auth_usersupplied_info *user_info,
  93                                   struct auth_serversupplied_info **pserver_info,
  94                                   uint8_t *pauthoritative);
  95
  96 /* The following definitions come from auth/auth_builtin.c  */
  97
  98 NTSTATUS auth_builtin_init(TALLOC_CTX *mem_ctx);
  99
 100 /* The following definitions come from auth/auth_generic.c  */
 101
 102 NTSTATUS make_auth4_context(TALLOC_CTX *mem_ctx, struct auth4_context **auth4_context_out);
 103 NTSTATUS auth_generic_prepare(TALLOC_CTX *mem_ctx,
 104                               const struct tsocket_address *remote_address,
 105                               const struct tsocket_address *local_address,
 106                               const char *service_description,
 107                               struct gensec_security **gensec_security_out);
 108
 109 NTSTATUS auth_check_password_session_info(struct auth4_context *auth_context,
 110                                           TALLOC_CTX *mem_ctx,
 111                                           struct auth_usersupplied_info *user_info,
 112                                           struct auth_session_info **session_info);
 113
 114 /* The following definitions come from auth/auth_ntlmssp.c  */
 115
 116 NTSTATUS auth3_generate_session_info(struct auth4_context *auth_context,
 117                                      TALLOC_CTX *mem_ctx,
 118                                      void *server_returned_info,
 119                                      const char *original_user_name,
 120                                      uint32_t session_info_flags,
 121                                      struct auth_session_info **session_info);
 122
 123 NTSTATUS auth3_get_challenge(struct auth4_context *auth4_context,
 124                              uint8_t chal[8]);
 125
 126 NTSTATUS auth3_set_challenge(struct auth4_context *auth4_context, const uint8_t *chal,
 127                              const char *challenge_set_by);
 128
 129 NTSTATUS auth3_check_password(struct auth4_context *auth4_context,
 130                               TALLOC_CTX *mem_ctx,
 131                               const struct auth_usersupplied_info *user_info,
 132                               uint8_t *pauthoritative,
 133                               void **server_returned_info,
 134                               DATA_BLOB *session_key, DATA_BLOB *lm_session_key);
 135
 136 /* The following definitions come from auth/auth_sam.c  */
 137
 138 NTSTATUS check_sam_security(const DATA_BLOB *challenge,
 139                             TALLOC_CTX *mem_ctx,
 140                             const struct auth_usersupplied_info *user_info,
 141                             struct auth_serversupplied_info **server_info);
 142 NTSTATUS check_sam_security_info3(const DATA_BLOB *challenge,
 143                                   TALLOC_CTX *mem_ctx,
 144                                   const struct auth_usersupplied_info *user_info,
 145                                   struct netr_SamInfo3 **pinfo3);
 146 NTSTATUS auth_sam_init(TALLOC_CTX *mem_ctx);
 147
 148 /* The following definitions come from auth/auth_unix.c  */
 149
 150 NTSTATUS auth_unix_init(TALLOC_CTX *mem_ctx);
 151
 152 /* The following definitions come from auth/auth_util.c  */
 153 struct tsocket_address;
 154
 155 NTSTATUS make_user_info_map(TALLOC_CTX *mem_ctx,
 156                             struct auth_usersupplied_info **user_info,
 157                             const char *smb_name,
 158                             const char *client_domain,
 159                             const char *workstation_name,
 160                             const struct tsocket_address *remote_address,
 161                             const struct tsocket_address *local_address,
 162                             const char *service_description,
 163                             const DATA_BLOB *lm_pwd,
 164                             const DATA_BLOB *nt_pwd,
 165                             const struct samr_Password *lm_interactive_pwd,
 166                             const struct samr_Password *nt_interactive_pwd,
 167                             const char *plaintext,
 168                             enum auth_password_state password_state);
 169 bool make_user_info_netlogon_network(TALLOC_CTX *mem_ctx,
 170                                      struct auth_usersupplied_info **user_info,
 171                                      const char *smb_name,
 172                                      const char *client_domain,
 173                                      const char *workstation_name,
 174                                      const struct tsocket_address *remote_address,
 175                                      const struct tsocket_address *local_address,
 176                                      uint32_t logon_parameters,
 177                                      const uchar *lm_network_pwd,
 178                                      int lm_pwd_len,
 179                                      const uchar *nt_network_pwd,
 180                                      int nt_pwd_len);
 181 bool make_user_info_netlogon_interactive(TALLOC_CTX *mem_ctx,
 182                                          struct auth_usersupplied_info **user_info,
 183                                          const char *smb_name,
 184                                          const char *client_domain,
 185                                          const char *workstation_name,
 186                                          const struct tsocket_address *remote_address,
 187                                          const struct tsocket_address *local_address,
 188                                          uint32_t logon_parameters,
 189                                          const uchar chal[8],
 190                                          const uchar lm_interactive_pwd[16],
 191                                          const uchar nt_interactive_pwd[16]);
 192 bool make_user_info_for_reply(TALLOC_CTX *mem_ctx,
 193                               struct auth_usersupplied_info **user_info,
 194                               const char *smb_name,
 195                               const char *client_domain,
 196                               const struct tsocket_address *remote_address,
 197                               const struct tsocket_address *local_address,
 198                               const char *service_description,
 199                               const uint8_t chal[8],
 200                               DATA_BLOB plaintext_password);
 201 NTSTATUS make_user_info_for_reply_enc(TALLOC_CTX *mem_ctx,
 202                                       struct auth_usersupplied_info **user_info,
 203                                       const char *smb_name,
 204                                       const char *client_domain,
 205                                       const struct tsocket_address *remote_address,
 206                                       const struct tsocket_address *local_address,
 207                                       const char *service_description,
 208                                       DATA_BLOB lm_resp, DATA_BLOB nt_resp);
 209 bool make_user_info_guest(TALLOC_CTX *mem_ctx,
 210                           const struct tsocket_address *remote_address,
 211                           const struct tsocket_address *local_address,
 212                           const char *service_description,
 213                           struct auth_usersupplied_info **user_info);
 214
 215 struct samu;
 216 NTSTATUS make_server_info_sam(TALLOC_CTX *mem_ctx,
 217                               struct samu *sampass,
 218                               struct auth_serversupplied_info **pserver_info);
 219 NTSTATUS create_local_token(TALLOC_CTX *mem_ctx,
 220                             const struct auth_serversupplied_info *server_info,
 221                             DATA_BLOB *session_key,
 222                             const char *smb_name,
 223                             struct auth_session_info **session_info_out);
 224
 225 /*
 226  * The unix name should be constructed as DOMAIN+ACCOUNT,
 227  * while '+' will be the "winbind separator" character.
 228  */
 229 #define AUTH3_UNIX_HINT_QUALIFIED_NAME             0x00000001
 230 /*
 231  * The unix name will be just ACCOUNT
 232  */
 233 #define AUTH3_UNIX_HINT_ISLOLATED_NAME             0x00000002
 234 /*
 235  * Don't translate the nt token SIDS into uid/gids
 236  */
 237 #define AUTH3_UNIX_HINT_DONT_TRANSLATE_FROM_SIDS   0x00000004
 238 /*
 239  * Don't translate the unix token uid/gids to S-1-22-X-Y SIDS
 240  */
 241 #define AUTH3_UNIX_HINT_DONT_TRANSLATE_TO_SIDS     0x00000008
 242 /*
 243  * The unix token won't get expanded gid values
 244  * from getgroups_unix_user()
 245  */
 246 #define AUTH3_UNIX_HINT_DONT_EXPAND_UNIX_GROUPS    0x00000010
 247 NTSTATUS auth3_user_info_dc_add_hints(struct auth_user_info_dc *user_info_dc,
 248                                       uid_t uid,
 249                                       gid_t gid,
 250                                       uint32_t flags);
 251 NTSTATUS auth3_session_info_create(TALLOC_CTX *mem_ctx,
 252                                    const struct auth_user_info_dc *user_info_dc,
 253                                    const char *original_user_name,
 254                                    uint32_t session_info_flags,
 255                                    struct auth_session_info **session_info_out);
 256 NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
 257                                     bool is_guest,
 258                                     uid_t *uid, gid_t *gid,
 259                                     char **found_username,
 260                                     struct security_token **token);
 261 bool user_in_group_sid(const char *username, const struct dom_sid *group_sid);
 262 bool user_sid_in_group_sid(const struct dom_sid *sid, const struct dom_sid *group_sid);
 263 bool user_in_group(const char *username, const char *groupname);
 264 struct passwd;
 265 NTSTATUS make_server_info_pw(TALLOC_CTX *mem_ctx,
 266                              const char *unix_username,
 267                              const struct passwd *pwd,
 268                              struct auth_serversupplied_info **server_info);
 269 NTSTATUS make_session_info_from_username(TALLOC_CTX *mem_ctx,
 270                                          const char *username,
 271                                          bool is_guest,
 272                                          struct auth_session_info **session_info);
 273 bool init_guest_session_info(TALLOC_CTX *mem_ctx);
 274 NTSTATUS init_system_session_info(TALLOC_CTX *mem_ctx);
 275 bool session_info_set_session_key(struct auth_session_info *info,
 276                                  DATA_BLOB session_key);
 277 NTSTATUS make_server_info_guest(TALLOC_CTX *mem_ctx,
 278                                 struct auth_serversupplied_info **server_info);
 279 NTSTATUS make_session_info_guest(TALLOC_CTX *mem_ctx,
 280                                 struct auth_session_info **server_info);
 281 NTSTATUS make_server_info_anonymous(TALLOC_CTX *mem_ctx,
 282                                     struct auth_serversupplied_info **server_info);
 283 NTSTATUS make_session_info_anonymous(TALLOC_CTX *mem_ctx,
 284                                      struct auth_session_info **psession_info);
 285 NTSTATUS make_session_info_system(TALLOC_CTX *mem_ctx,
 286                                  struct auth_session_info **session_info);
 287 const struct auth_session_info *get_session_info_system(void);
 288 struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, const char *domuser,
 289                              char **p_save_username, bool create );
 290 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
 291                                 const char *sent_nt_username,
 292                                 const char *domain,
 293                                 struct auth_serversupplied_info **server_info,
 294                                 const struct netr_SamInfo3 *info3);
 295 struct wbcAuthUserInfo;
 296 NTSTATUS make_server_info_wbcAuthUserInfo(TALLOC_CTX *mem_ctx,
 297                                           const char *sent_nt_username,
 298                                           const char *domain,
 299                                           const struct wbcAuthUserInfo *info,
 300                                           struct auth_serversupplied_info **server_info);
 301 bool is_trusted_domain(const char* dom_name);
 302 NTSTATUS session_extract_session_key(const struct auth_session_info *session_info, DATA_BLOB *session_key, enum session_key_use_intent intent);
 303
 304 /* The following definitions come from auth/user_info.c  */
 305
 306 NTSTATUS make_user_info(TALLOC_CTX *mem_ctx,
 307                         struct auth_usersupplied_info **ret_user_info,
 308                         const char *smb_name,
 309                         const char *internal_username,
 310                         const char *client_domain,
 311                         const char *domain,
 312                         const char *workstation_name,
 313                         const struct tsocket_address *remote_address,
 314                         const struct tsocket_address *local_address,
 315                         const char *service_description,
 316                         const DATA_BLOB *lm_pwd,
 317                         const DATA_BLOB *nt_pwd,
 318                         const struct samr_Password *lm_interactive_pwd,
 319                         const struct samr_Password *nt_interactive_pwd,
 320                         const char *plaintext_password,
 321                         enum auth_password_state password_state);
 322
 323 NTSTATUS do_map_to_guest_server_info(TALLOC_CTX *mem_ctx,
 324                                      NTSTATUS status,
 325                                      const char *user,
 326                                      const char *domain,
 327                                      struct auth_serversupplied_info **server_info);
 328
 329 /* The following definitions come from auth/auth_winbind.c  */
 330
 331 NTSTATUS auth_winbind_init(TALLOC_CTX *mem_ctx);
 332
 333 /* The following definitions come from auth/server_info.c  */
 334
 335 struct netr_SamInfo2;
 336 struct netr_SamInfo3;
 337 struct netr_SamInfo6;
 338
 339 struct auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx);
 340 NTSTATUS serverinfo_to_SamInfo2(struct auth_serversupplied_info *server_info,
 341                                 struct netr_SamInfo2 *sam2);
 342 NTSTATUS serverinfo_to_SamInfo3(const struct auth_serversupplied_info *server_info,
 343                                 struct netr_SamInfo3 *sam3);
 344 NTSTATUS serverinfo_to_SamInfo6(struct auth_serversupplied_info *server_info,
 345                                 struct netr_SamInfo6 *sam6);
 346 NTSTATUS create_info3_from_pac_logon_info(TALLOC_CTX *mem_ctx,
 347                                         const struct PAC_LOGON_INFO *logon_info,
 348                                         struct netr_SamInfo3 **pp_info3);
 349 NTSTATUS create_info6_from_pac(TALLOC_CTX *mem_ctx,
 350                                const struct PAC_LOGON_INFO *logon_info,
 351                                const struct PAC_UPN_DNS_INFO *upn_dns_info,
 352                                struct netr_SamInfo6 **pp_info6);
 353 NTSTATUS samu_to_SamInfo3(TALLOC_CTX *mem_ctx,
 354                           struct samu *samu,
 355                           const char *login_server,
 356                           struct netr_SamInfo3 **_info3,
 357                           struct extra_auth_info *extra);
 358 NTSTATUS passwd_to_SamInfo3(TALLOC_CTX *mem_ctx,
 359                             const char *unix_username,
 360                             const struct passwd *pwd,
 361                             struct netr_SamInfo3 **pinfo3,
 362                             struct extra_auth_info *extra);
 363
 364 /* The following definitions come from auth/pampass.c  */
 365
 366 bool smb_pam_claim_session(const char *user, const char *tty, const char *rhost);
 367 bool smb_pam_close_session(const char *user, const char *tty, const char *rhost);
 368 NTSTATUS smb_pam_accountcheck(const char *user, const char *rhost);
 369 NTSTATUS smb_pam_passcheck(const char * user, const char * rhost,
 370                            const char * password);
 371 bool smb_pam_passchange(const char *user, const char *rhost,
 372                         const char *oldpassword, const char *newpassword);
 373
 374 /* The following definitions come from auth/pass_check.c  */
 375
 376 NTSTATUS pass_check(const struct passwd *pass,
 377                     const char *user,
 378                     const char *rhost,
 379                     const char *password,
 380                     bool run_cracker);
 381
 382 /* The following definitions come from auth/token_util.c  */
 383
 384 bool nt_token_check_sid ( const struct dom_sid *sid, const struct security_token *token );
 385 bool nt_token_check_domain_rid( struct security_token *token, uint32_t rid );
 386 struct security_token *get_root_nt_token( void );
 387 NTSTATUS add_aliases(const struct dom_sid *domain_sid,
 388                      struct security_token *token);
 389 struct security_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
 390                                             const struct dom_sid *user_sid,
 391                                             bool is_guest,
 392                                             int num_groupsids,
 393                                             const struct dom_sid *groupsids);
 394 NTSTATUS finalize_local_nt_token(struct security_token *result,
 395                                  uint32_t session_info_flags);
 396 NTSTATUS get_user_sid_info3_and_extra(const struct netr_SamInfo3 *info3,
 397                                       const struct extra_auth_info *extra,
 398                                       struct dom_sid *sid);
 399 NTSTATUS create_local_nt_token_from_info3(TALLOC_CTX *mem_ctx,
 400                                           bool is_guest,
 401                                           const struct netr_SamInfo3 *info3,
 402                                           const struct extra_auth_info *extra,
 403                                           struct security_token **ntok);
 404 void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
 405                            int n_groups, gid_t *groups);
 406
 407 /* The following definitions come from auth/user_util.c  */
 408
 409 bool map_username(TALLOC_CTX *ctx, const char *user_in, char **p_user_out);
 410 bool user_in_netgroup(TALLOC_CTX *ctx, const char *user, const char *ngname);
 411 bool user_in_list(TALLOC_CTX *ctx, const char *user, const char * const *list);
 412
 413 /* The following definitions come from auth/user_krb5.c  */
 414 struct PAC_LOGON_INFO;
 415 NTSTATUS get_user_from_kerberos_info(TALLOC_CTX *mem_ctx,
 416                                      const char *cli_name,
 417                                      const char *princ_name,
 418                                      struct PAC_LOGON_INFO *logon_info,
 419                                      bool *is_mapped,
 420                                      bool *mapped_to_guest,
 421                                      char **ntuser,
 422                                      char **ntdomain,
 423                                      char **username,
 424                                      struct passwd **_pw);
 425 NTSTATUS make_session_info_krb5(TALLOC_CTX *mem_ctx,
 426                                 char *ntuser,
 427                                 char *ntdomain,
 428                                 char *username,
 429                                 struct passwd *pw,
 430                                 const struct netr_SamInfo3 *info3,
 431                                 bool mapped_to_guest, bool username_was_mapped,
 432                                 DATA_BLOB *session_key,
 433                                 struct auth_session_info **session_info);
 434
 435 /* The following definitions come from auth/auth_samba4.c  */
 436
 437 NTSTATUS auth_samba4_init(TALLOC_CTX *mem_ctx);
 438
 439 #endif /* _AUTH_PROTO_H_ */