source3/rpc_client/cli_samr.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    RPC pipe client
   4    Copyright (C) Tim Potter                        2000-2001,
   5    Copyright (C) Andrew Tridgell              1992-1997,2000,
   6    Copyright (C) Rafal Szczesniak                       2002.
   7    Copyright (C) Jeremy Allison                         2005.
   8    Copyright (C) Guenther Deschner                      2008.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "../libcli/auth/libcli_auth.h"
  26 #include "../librpc/gen_ndr/cli_samr.h"
  27 #include "rpc_client/cli_samr.h"
  28 #include "../lib/crypto/arcfour.h"
  29
  30 /* User change password */
  31
  32 NTSTATUS rpccli_samr_chgpasswd_user(struct rpc_pipe_client *cli,
  33                                     TALLOC_CTX *mem_ctx,
  34                                     struct policy_handle *user_handle,
  35                                     const char *newpassword,
  36                                     const char *oldpassword)
  37 {
  38         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  39         struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
  40
  41         uchar old_nt_hash[16];
  42         uchar old_lm_hash[16];
  43         uchar new_nt_hash[16];
  44         uchar new_lm_hash[16];
  45
  46         ZERO_STRUCT(old_nt_hash);
  47         ZERO_STRUCT(old_lm_hash);
  48         ZERO_STRUCT(new_nt_hash);
  49         ZERO_STRUCT(new_lm_hash);
  50
  51         DEBUG(10,("rpccli_samr_chgpasswd_user\n"));
  52
  53         E_md4hash(oldpassword, old_nt_hash);
  54         E_md4hash(newpassword, new_nt_hash);
  55
  56         E_deshash(oldpassword, old_lm_hash);
  57         E_deshash(newpassword, new_lm_hash);
  58
  59         E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
  60         E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
  61         E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
  62         E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
  63         E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
  64         E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
  65
  66         result = rpccli_samr_ChangePasswordUser(cli, mem_ctx,
  67                                                 user_handle,
  68                                                 true,
  69                                                 &hash1,
  70                                                 &hash2,
  71                                                 true,
  72                                                 &hash3,
  73                                                 &hash4,
  74                                                 true,
  75                                                 &hash5,
  76                                                 true,
  77                                                 &hash6);
  78
  79         return result;
  80 }
  81
  82
  83 /* User change password */
  84
  85 NTSTATUS rpccli_samr_chgpasswd_user2(struct rpc_pipe_client *cli,
  86                                      TALLOC_CTX *mem_ctx,
  87                                      const char *username,
  88                                      const char *newpassword,
  89                                      const char *oldpassword)
  90 {
  91         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  92         struct samr_CryptPassword new_nt_password;
  93         struct samr_CryptPassword new_lm_password;
  94         struct samr_Password old_nt_hash_enc;
  95         struct samr_Password old_lanman_hash_enc;
  96
  97         uchar old_nt_hash[16];
  98         uchar old_lanman_hash[16];
  99         uchar new_nt_hash[16];
 100         uchar new_lanman_hash[16];
 101         struct lsa_String server, account;
 102
 103         DEBUG(10,("rpccli_samr_chgpasswd_user2\n"));
 104
 105         init_lsa_String(&server, cli->srv_name_slash);
 106         init_lsa_String(&account, username);
 107
 108         /* Calculate the MD4 hash (NT compatible) of the password */
 109         E_md4hash(oldpassword, old_nt_hash);
 110         E_md4hash(newpassword, new_nt_hash);
 111
 112         if (lp_client_lanman_auth() &&
 113             E_deshash(newpassword, new_lanman_hash) &&
 114             E_deshash(oldpassword, old_lanman_hash)) {
 115                 /* E_deshash returns false for 'long' passwords (> 14
 116                    DOS chars).  This allows us to match Win2k, which
 117                    does not store a LM hash for these passwords (which
 118                    would reduce the effective password length to 14) */
 119
 120                 encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);
 121
 122                 arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
 123                 E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 124         } else {
 125                 ZERO_STRUCT(new_lm_password);
 126                 ZERO_STRUCT(old_lanman_hash_enc);
 127         }
 128
 129         encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);
 130
 131         arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
 132         E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 133
 134         result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
 135                                                  &server,
 136                                                  &account,
 137                                                  &new_nt_password,
 138                                                  &old_nt_hash_enc,
 139                                                  true,
 140                                                  &new_lm_password,
 141                                                  &old_lanman_hash_enc);
 142
 143         return result;
 144 }
 145
 146 /* User change password given blobs */
 147
 148 NTSTATUS rpccli_samr_chng_pswd_auth_crap(struct rpc_pipe_client *cli,
 149                                          TALLOC_CTX *mem_ctx,
 150                                          const char *username,
 151                                          DATA_BLOB new_nt_password_blob,
 152                                          DATA_BLOB old_nt_hash_enc_blob,
 153                                          DATA_BLOB new_lm_password_blob,
 154                                          DATA_BLOB old_lm_hash_enc_blob)
 155 {
 156         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 157         struct samr_CryptPassword new_nt_password;
 158         struct samr_CryptPassword new_lm_password;
 159         struct samr_Password old_nt_hash_enc;
 160         struct samr_Password old_lm_hash_enc;
 161         struct lsa_String server, account;
 162
 163         DEBUG(10,("rpccli_samr_chng_pswd_auth_crap\n"));
 164
 165         init_lsa_String(&server, cli->srv_name_slash);
 166         init_lsa_String(&account, username);
 167
 168         memcpy(&new_nt_password.data, new_nt_password_blob.data, 516);
 169         memcpy(&new_lm_password.data, new_lm_password_blob.data, 516);
 170         memcpy(&old_nt_hash_enc.hash, old_nt_hash_enc_blob.data, 16);
 171         memcpy(&old_lm_hash_enc.hash, old_lm_hash_enc_blob.data, 16);
 172
 173         result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
 174                                                  &server,
 175                                                  &account,
 176                                                  &new_nt_password,
 177                                                  &old_nt_hash_enc,
 178                                                  true,
 179                                                  &new_lm_password,
 180                                                  &old_lm_hash_enc);
 181         return result;
 182 }
 183
 184
 185 /* change password 3 */
 186
 187 NTSTATUS rpccli_samr_chgpasswd_user3(struct rpc_pipe_client *cli,
 188                                      TALLOC_CTX *mem_ctx,
 189                                      const char *username,
 190                                      const char *newpassword,
 191                                      const char *oldpassword,
 192                                      struct samr_DomInfo1 **dominfo1,
 193                                      struct userPwdChangeFailureInformation **reject)
 194 {
 195         NTSTATUS status;
 196
 197         struct samr_CryptPassword new_nt_password;
 198         struct samr_CryptPassword new_lm_password;
 199         struct samr_Password old_nt_hash_enc;
 200         struct samr_Password old_lanman_hash_enc;
 201
 202         uchar old_nt_hash[16];
 203         uchar old_lanman_hash[16];
 204         uchar new_nt_hash[16];
 205         uchar new_lanman_hash[16];
 206
 207         struct lsa_String server, account;
 208
 209         DEBUG(10,("rpccli_samr_chgpasswd_user3\n"));
 210
 211         init_lsa_String(&server, cli->srv_name_slash);
 212         init_lsa_String(&account, username);
 213
 214         /* Calculate the MD4 hash (NT compatible) of the password */
 215         E_md4hash(oldpassword, old_nt_hash);
 216         E_md4hash(newpassword, new_nt_hash);
 217
 218         if (lp_client_lanman_auth() &&
 219             E_deshash(newpassword, new_lanman_hash) &&
 220             E_deshash(oldpassword, old_lanman_hash)) {
 221                 /* E_deshash returns false for 'long' passwords (> 14
 222                    DOS chars).  This allows us to match Win2k, which
 223                    does not store a LM hash for these passwords (which
 224                    would reduce the effective password length to 14) */
 225
 226                 encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);
 227
 228                 arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
 229                 E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 230         } else {
 231                 ZERO_STRUCT(new_lm_password);
 232                 ZERO_STRUCT(old_lanman_hash_enc);
 233         }
 234
 235         encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);
 236
 237         arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
 238         E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 239
 240         status = rpccli_samr_ChangePasswordUser3(cli, mem_ctx,
 241                                                  &server,
 242                                                  &account,
 243                                                  &new_nt_password,
 244                                                  &old_nt_hash_enc,
 245                                                  true,
 246                                                  &new_lm_password,
 247                                                  &old_lanman_hash_enc,
 248                                                  NULL,
 249                                                  dominfo1,
 250                                                  reject);
 251         return status;
 252 }
 253
 254 /* This function returns the bizzare set of (max_entries, max_size) required
 255    for the QueryDisplayInfo RPC to actually work against a domain controller
 256    with large (10k and higher) numbers of users.  These values were
 257    obtained by inspection using ethereal and NT4 running User Manager. */
 258
 259 void get_query_dispinfo_params(int loop_count, uint32 *max_entries,
 260                                uint32 *max_size)
 261 {
 262         switch(loop_count) {
 263         case 0:
 264                 *max_entries = 512;
 265                 *max_size = 16383;
 266                 break;
 267         case 1:
 268                 *max_entries = 1024;
 269                 *max_size = 32766;
 270                 break;
 271         case 2:
 272                 *max_entries = 2048;
 273                 *max_size = 65532;
 274                 break;
 275         case 3:
 276                 *max_entries = 4096;
 277                 *max_size = 131064;
 278                 break;
 279         default:              /* loop_count >= 4 */
 280                 *max_entries = 4096;
 281                 *max_size = 131071;
 282                 break;
 283         }
 284 }
 285
 286 NTSTATUS rpccli_try_samr_connects(struct rpc_pipe_client *cli,
 287                                   TALLOC_CTX *mem_ctx,
 288                                   uint32_t access_mask,
 289                                   struct policy_handle *connect_pol)
 290 {
 291         NTSTATUS status;
 292         union samr_ConnectInfo info_in, info_out;
 293         struct samr_ConnectInfo1 info1;
 294         uint32_t lvl_out = 0;
 295
 296         ZERO_STRUCT(info1);
 297
 298         info1.client_version = SAMR_CONNECT_W2K;
 299         info_in.info1 = info1;
 300
 301         status = rpccli_samr_Connect5(cli, mem_ctx,
 302                                       cli->srv_name_slash,
 303                                       access_mask,
 304                                       1,
 305                                       &info_in,
 306                                       &lvl_out,
 307                                       &info_out,
 308                                       connect_pol);
 309         if (NT_STATUS_IS_OK(status)) {
 310                 return status;
 311         }
 312
 313         status = rpccli_samr_Connect4(cli, mem_ctx,
 314                                       cli->srv_name_slash,
 315                                       SAMR_CONNECT_W2K,
 316                                       access_mask,
 317                                       connect_pol);
 318         if (NT_STATUS_IS_OK(status)) {
 319                 return status;
 320         }
 321
 322         status = rpccli_samr_Connect2(cli, mem_ctx,
 323                                       cli->srv_name_slash,
 324                                       access_mask,
 325                                       connect_pol);
 326         return status;
 327 }
 328