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_auth_context_subsystem(TALLOC_CTX *mem_ctx,
  42                                      struct auth_context **auth_context);
  43 NTSTATUS make_auth_context_fixed(TALLOC_CTX *mem_ctx,
  44                                  struct auth_context **auth_context,
  45                                  uchar chal[8]) ;
  46
  47 /****************************************************************************
  48  Try to get a challenge out of the various authentication modules.
  49  Returns a const char of length 8 bytes.
  50 ****************************************************************************/
  51
  52 NTSTATUS auth_get_ntlm_challenge(struct auth_context *auth_context,
  53                                  uint8_t chal[8]);
  54
  55 /**
  56  * Check a user's Plaintext, LM or NTLM password.
  57  *
  58  * Check a user's password, as given in the user_info struct and return various
  59  * interesting details in the server_info struct.
  60  *
  61  * This function does NOT need to be in a become_root()/unbecome_root() pair
  62  * as it makes the calls itself when needed.
  63  *
  64  * The return value takes precedence over the contents of the server_info
  65  * struct.  When the return is other than NT_STATUS_OK the contents
  66  * of that structure is undefined.
  67  *
  68  * @param user_info Contains the user supplied components, including the passwords.
  69  *                  Must be created with make_user_info() or one of its wrappers.
  70  *
  71  * @param auth_context Supplies the challenges and some other data.
  72  *                  Must be created with make_auth_context(), and the challenges should be
  73  *                  filled in, either at creation or by calling the challenge geneation
  74  *                  function auth_get_challenge().
  75  *
  76  * @param server_info If successful, contains information about the authentication,
  77  *                    including a struct samu struct describing the user.
  78  *
  79  * @return An NTSTATUS with NT_STATUS_OK or an appropriate error.
  80  *
  81  **/
  82
  83 NTSTATUS auth_check_ntlm_password(const struct auth_context *auth_context,
  84                                   const struct auth_usersupplied_info *user_info,
  85                                   struct auth_serversupplied_info **server_info);
  86
  87 /* The following definitions come from auth/auth_builtin.c  */
  88
  89 NTSTATUS auth_builtin_init(void);
  90
  91 /* The following definitions come from auth/auth_domain.c  */
  92
  93 void attempt_machine_password_change(void);
  94 NTSTATUS auth_domain_init(void);
  95
  96 /* The following definitions come from auth/auth_generic.c  */
  97
  98 NTSTATUS make_auth4_context(TALLOC_CTX *mem_ctx, struct auth4_context **auth4_context_out);
  99 NTSTATUS auth_generic_prepare(TALLOC_CTX *mem_ctx, const struct tsocket_address *remote_address,
 100                               struct gensec_security **gensec_security_out);
 101
 102 NTSTATUS auth_check_password_session_info(struct auth4_context *auth_context,
 103                                           TALLOC_CTX *mem_ctx,
 104                                           struct auth_usersupplied_info *user_info,
 105                                           struct auth_session_info **session_info);
 106
 107 /* The following definitions come from auth/auth_ntlmssp.c  */
 108
 109 NTSTATUS auth3_generate_session_info(struct auth4_context *auth_context,
 110                                      TALLOC_CTX *mem_ctx,
 111                                      void *server_returned_info,
 112                                      const char *original_user_name,
 113                                      uint32_t session_info_flags,
 114                                      struct auth_session_info **session_info);
 115
 116 NTSTATUS auth3_get_challenge(struct auth4_context *auth4_context,
 117                              uint8_t chal[8]);
 118
 119 bool auth3_may_set_challenge(struct auth4_context *auth4_context);
 120 NTSTATUS auth3_set_challenge(struct auth4_context *auth4_context, const uint8_t *chal,
 121                              const char *challenge_set_by);
 122
 123 NTSTATUS auth3_check_password(struct auth4_context *auth4_context,
 124                               TALLOC_CTX *mem_ctx,
 125                               const struct auth_usersupplied_info *user_info,
 126                               void **server_returned_info,
 127                               DATA_BLOB *session_key, DATA_BLOB *lm_session_key);
 128
 129 /* The following definitions come from auth/auth_sam.c  */
 130
 131 NTSTATUS check_sam_security(const DATA_BLOB *challenge,
 132                             TALLOC_CTX *mem_ctx,
 133                             const struct auth_usersupplied_info *user_info,
 134                             struct auth_serversupplied_info **server_info);
 135 NTSTATUS check_sam_security_info3(const DATA_BLOB *challenge,
 136                                   TALLOC_CTX *mem_ctx,
 137                                   const struct auth_usersupplied_info *user_info,
 138                                   struct netr_SamInfo3 **pinfo3);
 139 NTSTATUS auth_sam_init(void);
 140
 141 /* The following definitions come from auth/auth_unix.c  */
 142
 143 NTSTATUS auth_unix_init(void);
 144
 145 /* The following definitions come from auth/auth_util.c  */
 146 struct tsocket_address;
 147
 148 NTSTATUS make_user_info_map(struct auth_usersupplied_info **user_info,
 149                             const char *smb_name,
 150                             const char *client_domain,
 151                             const char *workstation_name,
 152                             const struct tsocket_address *remote_address,
 153                             const DATA_BLOB *lm_pwd,
 154                             const DATA_BLOB *nt_pwd,
 155                             const struct samr_Password *lm_interactive_pwd,
 156                             const struct samr_Password *nt_interactive_pwd,
 157                             const char *plaintext,
 158                             enum auth_password_state password_state);
 159 bool make_user_info_netlogon_network(struct auth_usersupplied_info **user_info,
 160                                      const char *smb_name,
 161                                      const char *client_domain,
 162                                      const char *workstation_name,
 163                                      const struct tsocket_address *remote_address,
 164                                      uint32 logon_parameters,
 165                                      const uchar *lm_network_pwd,
 166                                      int lm_pwd_len,
 167                                      const uchar *nt_network_pwd,
 168                                      int nt_pwd_len);
 169 bool make_user_info_netlogon_interactive(struct auth_usersupplied_info **user_info,
 170                                          const char *smb_name,
 171                                          const char *client_domain,
 172                                          const char *workstation_name,
 173                                          const struct tsocket_address *remote_address,
 174                                          uint32 logon_parameters,
 175                                          const uchar chal[8],
 176                                          const uchar lm_interactive_pwd[16],
 177                                          const uchar nt_interactive_pwd[16]);
 178 bool make_user_info_for_reply(struct auth_usersupplied_info **user_info,
 179                               const char *smb_name,
 180                               const char *client_domain,
 181                               const struct tsocket_address *remote_address,
 182                               const uint8 chal[8],
 183                               DATA_BLOB plaintext_password);
 184 NTSTATUS make_user_info_for_reply_enc(struct auth_usersupplied_info **user_info,
 185                                       const char *smb_name,
 186                                       const char *client_domain,
 187                                       const struct tsocket_address *remote_address,
 188                                       DATA_BLOB lm_resp, DATA_BLOB nt_resp);
 189 bool make_user_info_guest(const struct tsocket_address *remote_address,
 190                           struct auth_usersupplied_info **user_info);
 191
 192 struct samu;
 193 NTSTATUS make_server_info_sam(struct auth_serversupplied_info **server_info,
 194                               struct samu *sampass);
 195 NTSTATUS create_local_token(TALLOC_CTX *mem_ctx,
 196                             const struct auth_serversupplied_info *server_info,
 197                             DATA_BLOB *session_key,
 198                             const char *smb_name,
 199                             struct auth_session_info **session_info_out);
 200 NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
 201                                     bool is_guest,
 202                                     uid_t *uid, gid_t *gid,
 203                                     char **found_username,
 204                                     struct security_token **token);
 205 bool user_in_group_sid(const char *username, const struct dom_sid *group_sid);
 206 bool user_sid_in_group_sid(const struct dom_sid *sid, const struct dom_sid *group_sid);
 207 bool user_in_group(const char *username, const char *groupname);
 208 struct passwd;
 209 NTSTATUS make_server_info_pw(struct auth_serversupplied_info **server_info,
 210                              char *unix_username,
 211                              struct passwd *pwd);
 212 NTSTATUS make_session_info_from_username(TALLOC_CTX *mem_ctx,
 213                                          const char *username,
 214                                          bool is_guest,
 215                                          struct auth_session_info **session_info);
 216 struct auth_session_info *copy_session_info(TALLOC_CTX *mem_ctx,
 217                                              const struct auth_session_info *src);
 218 bool init_guest_info(void);
 219 NTSTATUS init_system_session_info(void);
 220 bool session_info_set_session_key(struct auth_session_info *info,
 221                                  DATA_BLOB session_key);
 222 NTSTATUS make_server_info_guest(TALLOC_CTX *mem_ctx,
 223                                 struct auth_serversupplied_info **server_info);
 224 NTSTATUS make_session_info_guest(TALLOC_CTX *mem_ctx,
 225                                 struct auth_session_info **server_info);
 226 NTSTATUS make_session_info_system(TALLOC_CTX *mem_ctx,
 227                                  struct auth_session_info **session_info);
 228 const struct auth_session_info *get_session_info_system(void);
 229 struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, const char *domuser,
 230                              char **p_save_username, bool create );
 231 NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
 232                                 const char *sent_nt_username,
 233                                 const char *domain,
 234                                 struct auth_serversupplied_info **server_info,
 235                                 struct netr_SamInfo3 *info3);
 236 struct wbcAuthUserInfo;
 237 NTSTATUS make_server_info_wbcAuthUserInfo(TALLOC_CTX *mem_ctx,
 238                                           const char *sent_nt_username,
 239                                           const char *domain,
 240                                           const struct wbcAuthUserInfo *info,
 241                                           struct auth_serversupplied_info **server_info);
 242 void free_user_info(struct auth_usersupplied_info **user_info);
 243 bool is_trusted_domain(const char* dom_name);
 244 NTSTATUS session_extract_session_key(const struct auth_session_info *session_info, DATA_BLOB *session_key, enum session_key_use_intent intent);
 245
 246 /* The following definitions come from auth/user_info.c  */
 247
 248 NTSTATUS make_user_info(struct auth_usersupplied_info **ret_user_info,
 249                         const char *smb_name,
 250                         const char *internal_username,
 251                         const char *client_domain,
 252                         const char *domain,
 253                         const char *workstation_name,
 254                         const struct tsocket_address *remote_address,
 255                         const DATA_BLOB *lm_pwd,
 256                         const DATA_BLOB *nt_pwd,
 257                         const struct samr_Password *lm_interactive_pwd,
 258                         const struct samr_Password *nt_interactive_pwd,
 259                         const char *plaintext_password,
 260                         enum auth_password_state password_state);
 261 void free_user_info(struct auth_usersupplied_info **user_info);
 262
 263 NTSTATUS do_map_to_guest_server_info(NTSTATUS status,
 264                                      struct auth_serversupplied_info **server_info,
 265                                      const char *user, const char *domain);
 266
 267 /* The following definitions come from auth/auth_winbind.c  */
 268
 269 NTSTATUS auth_winbind_init(void);
 270
 271 /* The following definitions come from auth/server_info.c  */
 272
 273 struct netr_SamInfo2;
 274 struct netr_SamInfo3;
 275 struct netr_SamInfo6;
 276
 277 struct auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx);
 278 NTSTATUS serverinfo_to_SamInfo2(struct auth_serversupplied_info *server_info,
 279                                 struct netr_SamInfo2 *sam2);
 280 NTSTATUS serverinfo_to_SamInfo3(const struct auth_serversupplied_info *server_info,
 281                                 struct netr_SamInfo3 *sam3);
 282 NTSTATUS serverinfo_to_SamInfo6(struct auth_serversupplied_info *server_info,
 283                                 struct netr_SamInfo6 *sam6);
 284 NTSTATUS samu_to_SamInfo3(TALLOC_CTX *mem_ctx,
 285                           struct samu *samu,
 286                           const char *login_server,
 287                           struct netr_SamInfo3 **_info3,
 288                           struct extra_auth_info *extra);
 289 struct netr_SamInfo3 *copy_netr_SamInfo3(TALLOC_CTX *mem_ctx,
 290                                          struct netr_SamInfo3 *orig);
 291 struct netr_SamInfo3 *wbcAuthUserInfo_to_netr_SamInfo3(TALLOC_CTX *mem_ctx,
 292                                         const struct wbcAuthUserInfo *info);
 293
 294 /* The following definitions come from auth/auth_wbc.c  */
 295
 296 NTSTATUS auth_wbc_init(void);
 297
 298 /* The following definitions come from auth/pampass.c  */
 299
 300 bool smb_pam_claim_session(const char *user, const char *tty, const char *rhost);
 301 bool smb_pam_close_session(const char *user, const char *tty, const char *rhost);
 302 NTSTATUS smb_pam_accountcheck(const char *user, const char *rhost);
 303 NTSTATUS smb_pam_passcheck(const char * user, const char * rhost,
 304                            const char * password);
 305 bool smb_pam_passchange(const char *user, const char *rhost,
 306                         const char *oldpassword, const char *newpassword);
 307
 308 /* The following definitions come from auth/pass_check.c  */
 309
 310 void dfs_unlogin(void);
 311 NTSTATUS pass_check(const struct passwd *pass,
 312                     const char *user,
 313                     const char *rhost,
 314                     const char *password,
 315                     bool run_cracker);
 316
 317 /* The following definitions come from auth/token_util.c  */
 318
 319 bool nt_token_check_sid ( const struct dom_sid *sid, const struct security_token *token );
 320 bool nt_token_check_domain_rid( struct security_token *token, uint32 rid );
 321 struct security_token *get_root_nt_token( void );
 322 NTSTATUS add_aliases(const struct dom_sid *domain_sid,
 323                      struct security_token *token);
 324 struct security_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
 325                                             const struct dom_sid *user_sid,
 326                                             bool is_guest,
 327                                             int num_groupsids,
 328                                             const struct dom_sid *groupsids);
 329 NTSTATUS create_local_nt_token_from_info3(TALLOC_CTX *mem_ctx,
 330                                           bool is_guest,
 331                                           const struct netr_SamInfo3 *info3,
 332                                           const struct extra_auth_info *extra,
 333                                           struct security_token **ntok);
 334 void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
 335                            int n_groups, gid_t *groups);
 336
 337 /* The following definitions come from auth/user_util.c  */
 338
 339 bool map_username(TALLOC_CTX *ctx, const char *user_in, char **p_user_out);
 340 bool user_in_netgroup(TALLOC_CTX *ctx, const char *user, const char *ngname);
 341 bool user_in_list(TALLOC_CTX *ctx, const char *user,const char **list);
 342
 343 /* The following definitions come from auth/user_krb5.c  */
 344 struct PAC_LOGON_INFO;
 345 NTSTATUS get_user_from_kerberos_info(TALLOC_CTX *mem_ctx,
 346                                      const char *cli_name,
 347                                      const char *princ_name,
 348                                      struct PAC_LOGON_INFO *logon_info,
 349                                      bool *is_mapped,
 350                                      bool *mapped_to_guest,
 351                                      char **ntuser,
 352                                      char **ntdomain,
 353                                      char **username,
 354                                      struct passwd **_pw);
 355 NTSTATUS make_session_info_krb5(TALLOC_CTX *mem_ctx,
 356                                 char *ntuser,
 357                                 char *ntdomain,
 358                                 char *username,
 359                                 struct passwd *pw,
 360                                 struct PAC_LOGON_INFO *logon_info,
 361                                 bool mapped_to_guest, bool username_was_mapped,
 362                                 DATA_BLOB *session_key,
 363                                 struct auth_session_info **session_info);
 364
 365
 366 #endif /* _AUTH_PROTO_H_ */