source4/libnet/libnet_passwd.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Stefan Metzmacher      2004
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23 #include "libnet/libnet.h"
  24 #include "lib/crypto/crypto.h"
  25 #include "libcli/auth/libcli_auth.h"
  26 #include "librpc/gen_ndr/ndr_samr_c.h"
  27
  28 /*
  29  * do a password change using DCERPC/SAMR calls
  30  * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
  31  * 2. try samr_ChangePasswordUser3
  32  * 3. try samr_ChangePasswordUser2
  33  * 4. try samr_OemChangePasswordUser2
  34  * (not yet: 5. try samr_ChangePasswordUser)
  35  */
  36 static NTSTATUS libnet_ChangePassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
  37 {
  38         NTSTATUS status;
  39         struct libnet_RpcConnect c;
  40 #if 0
  41         struct policy_handle user_handle;
  42         struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
  43         struct samr_ChangePasswordUser pw;
  44 #endif
  45         struct samr_OemChangePasswordUser2 oe2;
  46         struct samr_ChangePasswordUser2 pw2;
  47         struct samr_ChangePasswordUser3 pw3;
  48         struct lsa_String server, account;
  49         struct lsa_AsciiString a_server, a_account;
  50         struct samr_CryptPassword nt_pass, lm_pass;
  51         struct samr_Password nt_verifier, lm_verifier;
  52         uint8_t old_nt_hash[16], new_nt_hash[16];
  53         uint8_t old_lm_hash[16], new_lm_hash[16];
  54
  55         /* prepare connect to the SAMR pipe of the users domain PDC */
  56         c.level                    = LIBNET_RPC_CONNECT_PDC;
  57         c.in.name                  = r->samr.in.domain_name;
  58         c.in.dcerpc_iface          = &dcerpc_table_samr;
  59
  60         /* 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation) */
  61         status = libnet_RpcConnect(ctx, mem_ctx, &c);
  62         if (!NT_STATUS_IS_OK(status)) {
  63                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
  64                                                 "Connection to SAMR pipe of PDC of domain '%s' failed: %s\n",
  65                                                 r->samr.in.domain_name, nt_errstr(status));
  66                 return status;
  67         }
  68
  69         /* prepare password change for account */
  70         server.string = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(c.out.dcerpc_pipe));
  71         account.string = r->samr.in.account_name;
  72
  73         E_md4hash(r->samr.in.oldpassword, old_nt_hash);
  74         E_md4hash(r->samr.in.newpassword, new_nt_hash);
  75
  76         E_deshash(r->samr.in.oldpassword, old_lm_hash);
  77         E_deshash(r->samr.in.newpassword, new_lm_hash);
  78
  79         /* prepare samr_ChangePasswordUser3 */
  80         encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_UNICODE);
  81         arcfour_crypt(lm_pass.data, old_nt_hash, 516);
  82         E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
  83
  84         encode_pw_buffer(nt_pass.data,  r->samr.in.newpassword, STR_UNICODE);
  85         arcfour_crypt(nt_pass.data, old_nt_hash, 516);
  86         E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
  87
  88         pw3.in.server = &server;
  89         pw3.in.account = &account;
  90         pw3.in.nt_password = &nt_pass;
  91         pw3.in.nt_verifier = &nt_verifier;
  92         pw3.in.lm_change = 1;
  93         pw3.in.lm_password = &lm_pass;
  94         pw3.in.lm_verifier = &lm_verifier;
  95         pw3.in.password3 = NULL;
  96
  97         /* 2. try samr_ChangePasswordUser3 */
  98         status = dcerpc_samr_ChangePasswordUser3(c.out.dcerpc_pipe, mem_ctx, &pw3);
  99         if (!NT_STATUS_IS_OK(status)) {
 100                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 101                                                 "samr_ChangePasswordUser3 failed: %s\n",
 102                                                 nt_errstr(status));
 103                 goto ChangePasswordUser2;
 104         }
 105
 106         /* check result of samr_ChangePasswordUser3 */
 107         if (!NT_STATUS_IS_OK(pw3.out.result)) {
 108                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 109                                                 "samr_ChangePasswordUser3 for '%s\\%s' failed: %s\n",
 110                                                 r->samr.in.domain_name, r->samr.in.account_name,
 111                                                 nt_errstr(pw3.out.result));
 112                                                 /* TODO: give the reason of the reject */
 113                 if (NT_STATUS_EQUAL(pw3.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
 114                         status = pw3.out.result;
 115                         goto disconnect;
 116                 }
 117                 goto ChangePasswordUser2;
 118         }
 119
 120         goto disconnect;
 121
 122 ChangePasswordUser2:
 123         /* prepare samr_ChangePasswordUser2 */
 124         encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII|STR_TERMINATE);
 125         arcfour_crypt(lm_pass.data, old_lm_hash, 516);
 126         E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
 127
 128         encode_pw_buffer(nt_pass.data, r->samr.in.newpassword, STR_UNICODE);
 129         arcfour_crypt(nt_pass.data, old_nt_hash, 516);
 130         E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
 131
 132         pw2.in.server = &server;
 133         pw2.in.account = &account;
 134         pw2.in.nt_password = &nt_pass;
 135         pw2.in.nt_verifier = &nt_verifier;
 136         pw2.in.lm_change = 1;
 137         pw2.in.lm_password = &lm_pass;
 138         pw2.in.lm_verifier = &lm_verifier;
 139
 140         /* 3. try samr_ChangePasswordUser2 */
 141         status = dcerpc_samr_ChangePasswordUser2(c.out.dcerpc_pipe, mem_ctx, &pw2);
 142         if (!NT_STATUS_IS_OK(status)) {
 143                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 144                                                 "samr_ChangePasswordUser2 failed: %s\n",
 145                                                 nt_errstr(status));
 146                 goto OemChangePasswordUser2;
 147         }
 148
 149         /* check result of samr_ChangePasswordUser2 */
 150         if (!NT_STATUS_IS_OK(pw2.out.result)) {
 151                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 152                                                 "samr_ChangePasswordUser2 for '%s\\%s' failed: %s\n",
 153                                                 r->samr.in.domain_name, r->samr.in.account_name,
 154                                                 nt_errstr(pw2.out.result));
 155                 if (NT_STATUS_EQUAL(pw2.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
 156                         status = pw2.out.result;
 157                         goto disconnect;
 158                 }
 159                 goto OemChangePasswordUser2;
 160         }
 161
 162         goto disconnect;
 163
 164 OemChangePasswordUser2:
 165         /* prepare samr_OemChangePasswordUser2 */
 166         a_server.string = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(c.out.dcerpc_pipe));
 167         a_account.string = r->samr.in.account_name;
 168
 169         encode_pw_buffer(lm_pass.data, r->samr.in.newpassword, STR_ASCII);
 170         arcfour_crypt(lm_pass.data, old_lm_hash, 516);
 171         E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
 172
 173         oe2.in.server = &a_server;
 174         oe2.in.account = &a_account;
 175         oe2.in.password = &lm_pass;
 176         oe2.in.hash = &lm_verifier;
 177
 178         /* 4. try samr_OemChangePasswordUser2 */
 179         status = dcerpc_samr_OemChangePasswordUser2(c.out.dcerpc_pipe, mem_ctx, &oe2);
 180         if (!NT_STATUS_IS_OK(status)) {
 181                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 182                                                 "samr_OemChangePasswordUser2 failed: %s\n",
 183                                                 nt_errstr(status));
 184                 goto ChangePasswordUser;
 185         }
 186
 187         /* check result of samr_OemChangePasswordUser2 */
 188         if (!NT_STATUS_IS_OK(oe2.out.result)) {
 189                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 190                                                 "samr_OemChangePasswordUser2 for '%s\\%s' failed: %s\n",
 191                                                 r->samr.in.domain_name, r->samr.in.account_name,
 192                                                 nt_errstr(oe2.out.result));
 193                 if (NT_STATUS_EQUAL(oe2.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
 194                         status = oe2.out.result;
 195                         goto disconnect;
 196                 }
 197                 goto ChangePasswordUser;
 198         }
 199
 200         goto disconnect;
 201
 202 ChangePasswordUser:
 203 #if 0
 204         /* prepare samr_ChangePasswordUser */
 205         E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
 206         E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
 207         E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
 208         E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
 209         E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
 210         E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
 211
 212         /* TODO: ask for a user_handle */
 213         pw.in.handle = &user_handle;
 214         pw.in.lm_present = 1;
 215         pw.in.old_lm_crypted = &hash1;
 216         pw.in.new_lm_crypted = &hash2;
 217         pw.in.nt_present = 1;
 218         pw.in.old_nt_crypted = &hash3;
 219         pw.in.new_nt_crypted = &hash4;
 220         pw.in.cross1_present = 1;
 221         pw.in.nt_cross = &hash5;
 222         pw.in.cross2_present = 1;
 223         pw.in.lm_cross = &hash6;
 224
 225         /* 5. try samr_ChangePasswordUser */
 226         status = dcerpc_samr_ChangePasswordUser(c.pdc.out.dcerpc_pipe, mem_ctx, &pw);
 227         if (!NT_STATUS_IS_OK(status)) {
 228                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 229                                                 "samr_ChangePasswordUser failed: %s\n",
 230                                                 nt_errstr(status));
 231                 goto disconnect;
 232         }
 233
 234         /* check result of samr_ChangePasswordUser */
 235         if (!NT_STATUS_IS_OK(pw.out.result)) {
 236                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 237                                                 "samr_ChangePasswordUser for '%s\\%s' failed: %s\n",
 238                                                 r->samr.in.domain_name, r->samr.in.account_name,
 239                                                 nt_errstr(pw.out.result));
 240                 if (NT_STATUS_EQUAL(pw.out.result, NT_STATUS_PASSWORD_RESTRICTION)) {
 241                         status = pw.out.result;
 242                         goto disconnect;
 243                 }
 244                 goto disconnect;
 245         }
 246 #endif
 247 disconnect:
 248         /* close connection */
 249         talloc_free(c.out.dcerpc_pipe);
 250
 251         return status;
 252 }
 253
 254 static NTSTATUS libnet_ChangePassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
 255 {
 256         NTSTATUS status;
 257         union libnet_ChangePassword r2;
 258
 259         r2.samr.level           = LIBNET_CHANGE_PASSWORD_SAMR;
 260         r2.samr.in.account_name = r->generic.in.account_name;
 261         r2.samr.in.domain_name  = r->generic.in.domain_name;
 262         r2.samr.in.oldpassword  = r->generic.in.oldpassword;
 263         r2.samr.in.newpassword  = r->generic.in.newpassword;
 264
 265         status = libnet_ChangePassword(ctx, mem_ctx, &r2);
 266
 267         r->generic.out.error_string = r2.samr.out.error_string;
 268
 269         return status;
 270 }
 271
 272 NTSTATUS libnet_ChangePassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_ChangePassword *r)
 273 {
 274         switch (r->generic.level) {
 275                 case LIBNET_CHANGE_PASSWORD_GENERIC:
 276                         return libnet_ChangePassword_generic(ctx, mem_ctx, r);
 277                 case LIBNET_CHANGE_PASSWORD_SAMR:
 278                         return libnet_ChangePassword_samr(ctx, mem_ctx, r);
 279                 case LIBNET_CHANGE_PASSWORD_KRB5:
 280                         return NT_STATUS_NOT_IMPLEMENTED;
 281                 case LIBNET_CHANGE_PASSWORD_LDAP:
 282                         return NT_STATUS_NOT_IMPLEMENTED;
 283                 case LIBNET_CHANGE_PASSWORD_RAP:
 284                         return NT_STATUS_NOT_IMPLEMENTED;
 285         }
 286
 287         return NT_STATUS_INVALID_LEVEL;
 288 }
 289
 290 static NTSTATUS libnet_SetPassword_samr_handle_26(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 291 {
 292         NTSTATUS status;
 293         struct samr_SetUserInfo sui;
 294         union samr_UserInfo u_info;
 295         DATA_BLOB session_key;
 296         DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
 297         uint8_t confounder[16];
 298         struct MD5Context md5;
 299
 300         /* prepare samr_SetUserInfo level 26 */
 301         ZERO_STRUCT(u_info);
 302         encode_pw_buffer(u_info.info26.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
 303         u_info.info26.pw_len = strlen(r->samr_handle.in.newpassword);
 304
 305         status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
 306         if (!NT_STATUS_IS_OK(status)) {
 307                 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
 308                                                                   "dcerpc_fetch_session_key failed: %s\n",
 309                                                                   nt_errstr(status));
 310                 return status;
 311         }
 312
 313         generate_random_buffer((uint8_t *)confounder, 16);
 314
 315         MD5Init(&md5);
 316         MD5Update(&md5, confounder, 16);
 317         MD5Update(&md5, session_key.data, session_key.length);
 318         MD5Final(confounded_session_key.data, &md5);
 319
 320         arcfour_crypt_blob(u_info.info26.password.data, 516, &confounded_session_key);
 321         memcpy(&u_info.info26.password.data[516], confounder, 16);
 322
 323         sui.in.user_handle = r->samr_handle.in.user_handle;
 324         sui.in.info = &u_info;
 325         sui.in.level = 26;
 326
 327         /* 7. try samr_SetUserInfo level 26 to set the password */
 328         status = dcerpc_samr_SetUserInfo(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
 329         /* check result of samr_SetUserInfo level 26 */
 330         if (!NT_STATUS_IS_OK(status)) {
 331                 r->samr_handle.out.error_string
 332                         = talloc_asprintf(mem_ctx,
 333                                           "SetUserInfo level 26 for [%s] failed: %s\n",
 334                                           r->samr_handle.in.account_name, nt_errstr(status));
 335         }
 336         return status;
 337 }
 338
 339 static NTSTATUS libnet_SetPassword_samr_handle_25(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 340 {
 341         NTSTATUS status;
 342         struct samr_SetUserInfo sui;
 343         union samr_UserInfo u_info;
 344         DATA_BLOB session_key;
 345         DATA_BLOB confounded_session_key = data_blob_talloc(mem_ctx, NULL, 16);
 346         uint8_t confounder[16];
 347         struct MD5Context md5;
 348
 349         /* prepare samr_SetUserInfo level 25 */
 350         ZERO_STRUCT(u_info);
 351         u_info.info25.info.fields_present = SAMR_FIELD_PASSWORD;
 352         encode_pw_buffer(u_info.info25.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
 353
 354         status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
 355         if (!NT_STATUS_IS_OK(status)) {
 356                 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
 357                                                 "dcerpc_fetch_session_key failed: %s\n",
 358                                                 nt_errstr(status));
 359                 return status;
 360         }
 361
 362         generate_random_buffer((uint8_t *)confounder, 16);
 363
 364         MD5Init(&md5);
 365         MD5Update(&md5, confounder, 16);
 366         MD5Update(&md5, session_key.data, session_key.length);
 367         MD5Final(confounded_session_key.data, &md5);
 368
 369         arcfour_crypt_blob(u_info.info25.password.data, 516, &confounded_session_key);
 370         memcpy(&u_info.info25.password.data[516], confounder, 16);
 371
 372         sui.in.user_handle = r->samr_handle.in.user_handle;
 373         sui.in.info = &u_info;
 374         sui.in.level = 25;
 375
 376         /* 8. try samr_SetUserInfo level 25 to set the password */
 377         status = dcerpc_samr_SetUserInfo(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
 378         if (!NT_STATUS_IS_OK(status)) {
 379                 r->samr_handle.out.error_string
 380                         = talloc_asprintf(mem_ctx,
 381                                           "SetUserInfo level 25 for [%s] failed: %s\n",
 382                                           r->samr_handle.in.account_name, nt_errstr(status));
 383         }
 384         return status;
 385 }
 386
 387 static NTSTATUS libnet_SetPassword_samr_handle_24(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 388 {
 389         NTSTATUS status;
 390         struct samr_SetUserInfo sui;
 391         union samr_UserInfo u_info;
 392         DATA_BLOB session_key;
 393
 394         /* prepare samr_SetUserInfo level 24 */
 395         ZERO_STRUCT(u_info);
 396         encode_pw_buffer(u_info.info24.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
 397         /* w2k3 ignores this length */
 398         u_info.info24.pw_len = strlen_m(r->samr_handle.in.newpassword)*2;
 399
 400         status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
 401         if (!NT_STATUS_IS_OK(status)) {
 402                 r->samr_handle.out.error_string = talloc_asprintf(mem_ctx,
 403                                                 "dcerpc_fetch_session_key failed: %s\n",
 404                                                 nt_errstr(status));
 405                 return status;
 406         }
 407
 408         arcfour_crypt_blob(u_info.info24.password.data, 516, &session_key);
 409
 410         sui.in.user_handle = r->samr_handle.in.user_handle;
 411         sui.in.info = &u_info;
 412         sui.in.level = 24;
 413
 414         /* 9. try samr_SetUserInfo level 24 to set the password */
 415         status = dcerpc_samr_SetUserInfo(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
 416         if (!NT_STATUS_IS_OK(status)) {
 417                 r->samr_handle.out.error_string
 418                         = talloc_asprintf(mem_ctx,
 419                                           "SetUserInfo level 24 for [%s] failed: %s\n",
 420                                           r->samr_handle.in.account_name, nt_errstr(status));
 421         }
 422         return status;
 423 }
 424
 425 static NTSTATUS libnet_SetPassword_samr_handle_23(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 426 {
 427         NTSTATUS status;
 428         struct samr_SetUserInfo sui;
 429         union samr_UserInfo u_info;
 430         DATA_BLOB session_key;
 431
 432         /* prepare samr_SetUserInfo level 23 */
 433         ZERO_STRUCT(u_info);
 434         u_info.info23.info.fields_present = SAMR_FIELD_PASSWORD;
 435         encode_pw_buffer(u_info.info23.password.data, r->samr_handle.in.newpassword, STR_UNICODE);
 436
 437         status = dcerpc_fetch_session_key(r->samr_handle.in.dcerpc_pipe, &session_key);
 438         if (!NT_STATUS_IS_OK(status)) {
 439                 r->samr_handle.out.error_string
 440                         = talloc_asprintf(mem_ctx,
 441                                           "dcerpc_fetch_session_key failed: %s\n",
 442                                           nt_errstr(status));
 443                 return status;
 444         }
 445
 446         arcfour_crypt_blob(u_info.info23.password.data, 516, &session_key);
 447
 448         sui.in.user_handle = r->samr_handle.in.user_handle;
 449         sui.in.info = &u_info;
 450         sui.in.level = 23;
 451
 452         /* 10. try samr_SetUserInfo level 23 to set the password */
 453         status = dcerpc_samr_SetUserInfo(r->samr_handle.in.dcerpc_pipe, mem_ctx, &sui);
 454         if (!NT_STATUS_IS_OK(status)) {
 455                 r->samr_handle.out.error_string
 456                         = talloc_asprintf(mem_ctx,
 457                                           "SetUserInfo level 23 for [%s] failed: %s\n",
 458                                           r->samr_handle.in.account_name, nt_errstr(status));
 459         }
 460         return status;
 461 }
 462
 463 /*
 464  * 1. try samr_SetUserInfo level 26 to set the password
 465  * 2. try samr_SetUserInfo level 25 to set the password
 466  * 3. try samr_SetUserInfo level 24 to set the password
 467  * 4. try samr_SetUserInfo level 23 to set the password
 468 */
 469 static NTSTATUS libnet_SetPassword_samr_handle(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 470 {
 471         NTSTATUS status;
 472         enum libnet_SetPassword_level levels[] = {
 473                 LIBNET_SET_PASSWORD_SAMR_HANDLE_26,
 474                 LIBNET_SET_PASSWORD_SAMR_HANDLE_25,
 475                 LIBNET_SET_PASSWORD_SAMR_HANDLE_24,
 476                 LIBNET_SET_PASSWORD_SAMR_HANDLE_23,
 477         };
 478         int i;
 479
 480         for (i=0; i < ARRAY_SIZE(levels); i++) {
 481                 r->generic.level = levels[i];
 482                 status = libnet_SetPassword(ctx, mem_ctx, r);
 483                 if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_INFO_CLASS)
 484                     || NT_STATUS_EQUAL(status, NT_STATUS_NET_WRITE_FAULT)) {
 485                         /* Try another password set mechanism */
 486                         continue;
 487                 }
 488                 break;
 489         }
 490
 491         return status;
 492 }
 493 /*
 494  * set a password with DCERPC/SAMR calls
 495  * 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation)
 496  *    is it correct to contact the the pdc of the domain of the user who's password should be set?
 497  * 2. do a samr_Connect to get a policy handle
 498  * 3. do a samr_LookupDomain to get the domain sid
 499  * 4. do a samr_OpenDomain to get a domain handle
 500  * 5. do a samr_LookupNames to get the users rid
 501  * 6. do a samr_OpenUser to get a user handle
 502  * 7  call libnet_SetPassword_samr_handle to set the password
 503  */
 504 static NTSTATUS libnet_SetPassword_samr(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 505 {
 506         NTSTATUS status;
 507         struct libnet_RpcConnect c;
 508         struct samr_Connect sc;
 509         struct policy_handle p_handle;
 510         struct samr_LookupDomain ld;
 511         struct lsa_String d_name;
 512         struct samr_OpenDomain od;
 513         struct policy_handle d_handle;
 514         struct samr_LookupNames ln;
 515         struct samr_OpenUser ou;
 516         struct policy_handle u_handle;
 517         union libnet_SetPassword r2;
 518
 519         /* prepare connect to the SAMR pipe of users domain PDC */
 520         c.level               = LIBNET_RPC_CONNECT_PDC;
 521         c.in.name             = r->samr.in.domain_name;
 522         c.in.dcerpc_iface     = &dcerpc_table_samr;
 523
 524         /* 1. connect to the SAMR pipe of users domain PDC (maybe a standalone server or workstation) */
 525         status = libnet_RpcConnect(ctx, mem_ctx, &c);
 526         if (!NT_STATUS_IS_OK(status)) {
 527                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 528                                                            "Connection to SAMR pipe of PDC of domain '%s' failed: %s\n",
 529                                                            r->samr.in.domain_name, nt_errstr(status));
 530                 return status;
 531         }
 532
 533         /* prepare samr_Connect */
 534         ZERO_STRUCT(p_handle);
 535         sc.in.system_name = NULL;
 536         sc.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 537         sc.out.connect_handle = &p_handle;
 538
 539         /* 2. do a samr_Connect to get a policy handle */
 540         status = dcerpc_samr_Connect(c.out.dcerpc_pipe, mem_ctx, &sc);
 541         if (!NT_STATUS_IS_OK(status)) {
 542                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 543                                                 "samr_Connect failed: %s\n",
 544                                                 nt_errstr(status));
 545                 goto disconnect;
 546         }
 547
 548         /* prepare samr_LookupDomain */
 549         d_name.string = r->samr.in.domain_name;
 550         ld.in.connect_handle = &p_handle;
 551         ld.in.domain_name = &d_name;
 552
 553         /* 3. do a samr_LookupDomain to get the domain sid */
 554         status = dcerpc_samr_LookupDomain(c.out.dcerpc_pipe, mem_ctx, &ld);
 555         if (!NT_STATUS_IS_OK(status)) {
 556                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 557                                                 "samr_LookupDomain for [%s] failed: %s\n",
 558                                                 r->samr.in.domain_name, nt_errstr(status));
 559                 goto disconnect;
 560         }
 561
 562         /* prepare samr_OpenDomain */
 563         ZERO_STRUCT(d_handle);
 564         od.in.connect_handle = &p_handle;
 565         od.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 566         od.in.sid = ld.out.sid;
 567         od.out.domain_handle = &d_handle;
 568
 569         /* 4. do a samr_OpenDomain to get a domain handle */
 570         status = dcerpc_samr_OpenDomain(c.out.dcerpc_pipe, mem_ctx, &od);
 571         if (!NT_STATUS_IS_OK(status)) {
 572                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 573                                                 "samr_OpenDomain for [%s] failed: %s\n",
 574                                                 r->samr.in.domain_name, nt_errstr(status));
 575                 goto disconnect;
 576         }
 577
 578         /* prepare samr_LookupNames */
 579         ln.in.domain_handle = &d_handle;
 580         ln.in.num_names = 1;
 581         ln.in.names = talloc_array(mem_ctx, struct lsa_String, 1);
 582         if (!ln.in.names) {
 583                 r->samr.out.error_string = "Out of Memory";
 584                 return NT_STATUS_NO_MEMORY;
 585         }
 586         ln.in.names[0].string = r->samr.in.account_name;
 587
 588         /* 5. do a samr_LookupNames to get the users rid */
 589         status = dcerpc_samr_LookupNames(c.out.dcerpc_pipe, mem_ctx, &ln);
 590         if (!NT_STATUS_IS_OK(status)) {
 591                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 592                                                 "samr_LookupNames for [%s] failed: %s\n",
 593                                                 r->samr.in.account_name, nt_errstr(status));
 594                 goto disconnect;
 595         }
 596
 597         /* check if we got one RID for the user */
 598         if (ln.out.rids.count != 1) {
 599                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 600                                                 "samr_LookupNames for [%s] returns %d RIDs\n",
 601                                                 r->samr.in.account_name, ln.out.rids.count);
 602                 status = NT_STATUS_INVALID_PARAMETER;
 603                 goto disconnect;
 604         }
 605
 606         /* prepare samr_OpenUser */
 607         ZERO_STRUCT(u_handle);
 608         ou.in.domain_handle = &d_handle;
 609         ou.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 610         ou.in.rid = ln.out.rids.ids[0];
 611         ou.out.user_handle = &u_handle;
 612
 613         /* 6. do a samr_OpenUser to get a user handle */
 614         status = dcerpc_samr_OpenUser(c.out.dcerpc_pipe, mem_ctx, &ou);
 615         if (!NT_STATUS_IS_OK(status)) {
 616                 r->samr.out.error_string = talloc_asprintf(mem_ctx,
 617                                                 "samr_OpenUser for [%s] failed: %s\n",
 618                                                 r->samr.in.account_name, nt_errstr(status));
 619                 goto disconnect;
 620         }
 621
 622         r2.samr_handle.level            = LIBNET_SET_PASSWORD_SAMR_HANDLE;
 623         r2.samr_handle.in.account_name  = r->samr.in.account_name;
 624         r2.samr_handle.in.newpassword   = r->samr.in.newpassword;
 625         r2.samr_handle.in.user_handle   = &u_handle;
 626         r2.samr_handle.in.dcerpc_pipe   = c.out.dcerpc_pipe;
 627
 628         status = libnet_SetPassword(ctx, mem_ctx, &r2);
 629
 630         r->generic.out.error_string = r2.samr_handle.out.error_string;
 631
 632 disconnect:
 633         /* close connection */
 634         talloc_free(c.out.dcerpc_pipe);
 635
 636         return status;
 637 }
 638
 639 static NTSTATUS libnet_SetPassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 640 {
 641         NTSTATUS status;
 642         union libnet_SetPassword r2;
 643
 644         r2.samr.level           = LIBNET_SET_PASSWORD_SAMR;
 645         r2.samr.in.account_name = r->generic.in.account_name;
 646         r2.samr.in.domain_name  = r->generic.in.domain_name;
 647         r2.samr.in.newpassword  = r->generic.in.newpassword;
 648
 649         r->generic.out.error_string = "Unknown Error";
 650         status = libnet_SetPassword(ctx, mem_ctx, &r2);
 651
 652         r->generic.out.error_string = r2.samr.out.error_string;
 653
 654         return status;
 655 }
 656
 657 NTSTATUS libnet_SetPassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_SetPassword *r)
 658 {
 659         switch (r->generic.level) {
 660                 case LIBNET_SET_PASSWORD_GENERIC:
 661                         return libnet_SetPassword_generic(ctx, mem_ctx, r);
 662                 case LIBNET_SET_PASSWORD_SAMR:
 663                         return libnet_SetPassword_samr(ctx, mem_ctx, r);
 664                 case LIBNET_SET_PASSWORD_SAMR_HANDLE:
 665                         return libnet_SetPassword_samr_handle(ctx, mem_ctx, r);
 666                 case LIBNET_SET_PASSWORD_SAMR_HANDLE_26:
 667                         return libnet_SetPassword_samr_handle_26(ctx, mem_ctx, r);
 668                 case LIBNET_SET_PASSWORD_SAMR_HANDLE_25:
 669                         return libnet_SetPassword_samr_handle_25(ctx, mem_ctx, r);
 670                 case LIBNET_SET_PASSWORD_SAMR_HANDLE_24:
 671                         return libnet_SetPassword_samr_handle_24(ctx, mem_ctx, r);
 672                 case LIBNET_SET_PASSWORD_SAMR_HANDLE_23:
 673                         return libnet_SetPassword_samr_handle_23(ctx, mem_ctx, r);
 674                 case LIBNET_SET_PASSWORD_KRB5:
 675                         return NT_STATUS_NOT_IMPLEMENTED;
 676                 case LIBNET_SET_PASSWORD_LDAP:
 677                         return NT_STATUS_NOT_IMPLEMENTED;
 678                 case LIBNET_SET_PASSWORD_RAP:
 679                         return NT_STATUS_NOT_IMPLEMENTED;
 680         }
 681
 682         return NT_STATUS_INVALID_LEVEL;
 683 }