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
  27 /* User change password */
  28
  29 NTSTATUS rpccli_samr_chgpasswd_user(struct rpc_pipe_client *cli,
  30                                     TALLOC_CTX *mem_ctx,
  31                                     struct policy_handle *user_handle,
  32                                     const char *newpassword,
  33                                     const char *oldpassword)
  34 {
  35         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  36         struct samr_Password hash1, hash2, hash3, hash4, hash5, hash6;
  37
  38         uchar old_nt_hash[16];
  39         uchar old_lm_hash[16];
  40         uchar new_nt_hash[16];
  41         uchar new_lm_hash[16];
  42
  43         ZERO_STRUCT(old_nt_hash);
  44         ZERO_STRUCT(old_lm_hash);
  45         ZERO_STRUCT(new_nt_hash);
  46         ZERO_STRUCT(new_lm_hash);
  47
  48         DEBUG(10,("rpccli_samr_chgpasswd_user\n"));
  49
  50         E_md4hash(oldpassword, old_nt_hash);
  51         E_md4hash(newpassword, new_nt_hash);
  52
  53         E_deshash(oldpassword, old_lm_hash);
  54         E_deshash(newpassword, new_lm_hash);
  55
  56         E_old_pw_hash(new_lm_hash, old_lm_hash, hash1.hash);
  57         E_old_pw_hash(old_lm_hash, new_lm_hash, hash2.hash);
  58         E_old_pw_hash(new_nt_hash, old_nt_hash, hash3.hash);
  59         E_old_pw_hash(old_nt_hash, new_nt_hash, hash4.hash);
  60         E_old_pw_hash(old_lm_hash, new_nt_hash, hash5.hash);
  61         E_old_pw_hash(old_nt_hash, new_lm_hash, hash6.hash);
  62
  63         result = rpccli_samr_ChangePasswordUser(cli, mem_ctx,
  64                                                 user_handle,
  65                                                 true,
  66                                                 &hash1,
  67                                                 &hash2,
  68                                                 true,
  69                                                 &hash3,
  70                                                 &hash4,
  71                                                 true,
  72                                                 &hash5,
  73                                                 true,
  74                                                 &hash6);
  75
  76         return result;
  77 }
  78
  79
  80 /* User change password */
  81
  82 NTSTATUS rpccli_samr_chgpasswd_user2(struct rpc_pipe_client *cli,
  83                                      TALLOC_CTX *mem_ctx,
  84                                      const char *username,
  85                                      const char *newpassword,
  86                                      const char *oldpassword)
  87 {
  88         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  89         struct samr_CryptPassword new_nt_password;
  90         struct samr_CryptPassword new_lm_password;
  91         struct samr_Password old_nt_hash_enc;
  92         struct samr_Password old_lanman_hash_enc;
  93
  94         uchar old_nt_hash[16];
  95         uchar old_lanman_hash[16];
  96         uchar new_nt_hash[16];
  97         uchar new_lanman_hash[16];
  98         struct lsa_String server, account;
  99
 100         DEBUG(10,("rpccli_samr_chgpasswd_user2\n"));
 101
 102         init_lsa_String(&server, cli->srv_name_slash);
 103         init_lsa_String(&account, username);
 104
 105         /* Calculate the MD4 hash (NT compatible) of the password */
 106         E_md4hash(oldpassword, old_nt_hash);
 107         E_md4hash(newpassword, new_nt_hash);
 108
 109         if (lp_client_lanman_auth() &&
 110             E_deshash(newpassword, new_lanman_hash) &&
 111             E_deshash(oldpassword, old_lanman_hash)) {
 112                 /* E_deshash returns false for 'long' passwords (> 14
 113                    DOS chars).  This allows us to match Win2k, which
 114                    does not store a LM hash for these passwords (which
 115                    would reduce the effective password length to 14) */
 116
 117                 encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);
 118
 119                 arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
 120                 E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 121         } else {
 122                 ZERO_STRUCT(new_lm_password);
 123                 ZERO_STRUCT(old_lanman_hash_enc);
 124         }
 125
 126         encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);
 127
 128         arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
 129         E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 130
 131         result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
 132                                                  &server,
 133                                                  &account,
 134                                                  &new_nt_password,
 135                                                  &old_nt_hash_enc,
 136                                                  true,
 137                                                  &new_lm_password,
 138                                                  &old_lanman_hash_enc);
 139
 140         return result;
 141 }
 142
 143 /* User change password given blobs */
 144
 145 NTSTATUS rpccli_samr_chng_pswd_auth_crap(struct rpc_pipe_client *cli,
 146                                          TALLOC_CTX *mem_ctx,
 147                                          const char *username,
 148                                          DATA_BLOB new_nt_password_blob,
 149                                          DATA_BLOB old_nt_hash_enc_blob,
 150                                          DATA_BLOB new_lm_password_blob,
 151                                          DATA_BLOB old_lm_hash_enc_blob)
 152 {
 153         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 154         struct samr_CryptPassword new_nt_password;
 155         struct samr_CryptPassword new_lm_password;
 156         struct samr_Password old_nt_hash_enc;
 157         struct samr_Password old_lm_hash_enc;
 158         struct lsa_String server, account;
 159
 160         DEBUG(10,("rpccli_samr_chng_pswd_auth_crap\n"));
 161
 162         init_lsa_String(&server, cli->srv_name_slash);
 163         init_lsa_String(&account, username);
 164
 165         memcpy(&new_nt_password.data, new_nt_password_blob.data, 516);
 166         memcpy(&new_lm_password.data, new_lm_password_blob.data, 516);
 167         memcpy(&old_nt_hash_enc.hash, old_nt_hash_enc_blob.data, 16);
 168         memcpy(&old_lm_hash_enc.hash, old_lm_hash_enc_blob.data, 16);
 169
 170         result = rpccli_samr_ChangePasswordUser2(cli, mem_ctx,
 171                                                  &server,
 172                                                  &account,
 173                                                  &new_nt_password,
 174                                                  &old_nt_hash_enc,
 175                                                  true,
 176                                                  &new_lm_password,
 177                                                  &old_lm_hash_enc);
 178         return result;
 179 }
 180
 181
 182 /* change password 3 */
 183
 184 NTSTATUS rpccli_samr_chgpasswd_user3(struct rpc_pipe_client *cli,
 185                                      TALLOC_CTX *mem_ctx,
 186                                      const char *username,
 187                                      const char *newpassword,
 188                                      const char *oldpassword,
 189                                      struct samr_DomInfo1 **dominfo1,
 190                                      struct samr_ChangeReject **reject)
 191 {
 192         NTSTATUS status;
 193
 194         struct samr_CryptPassword new_nt_password;
 195         struct samr_CryptPassword new_lm_password;
 196         struct samr_Password old_nt_hash_enc;
 197         struct samr_Password old_lanman_hash_enc;
 198
 199         uchar old_nt_hash[16];
 200         uchar old_lanman_hash[16];
 201         uchar new_nt_hash[16];
 202         uchar new_lanman_hash[16];
 203
 204         struct lsa_String server, account;
 205
 206         DEBUG(10,("rpccli_samr_chgpasswd_user3\n"));
 207
 208         init_lsa_String(&server, cli->srv_name_slash);
 209         init_lsa_String(&account, username);
 210
 211         /* Calculate the MD4 hash (NT compatible) of the password */
 212         E_md4hash(oldpassword, old_nt_hash);
 213         E_md4hash(newpassword, new_nt_hash);
 214
 215         if (lp_client_lanman_auth() &&
 216             E_deshash(newpassword, new_lanman_hash) &&
 217             E_deshash(oldpassword, old_lanman_hash)) {
 218                 /* E_deshash returns false for 'long' passwords (> 14
 219                    DOS chars).  This allows us to match Win2k, which
 220                    does not store a LM hash for these passwords (which
 221                    would reduce the effective password length to 14) */
 222
 223                 encode_pw_buffer(new_lm_password.data, newpassword, STR_UNICODE);
 224
 225                 arcfour_crypt(new_lm_password.data, old_nt_hash, 516);
 226                 E_old_pw_hash(new_nt_hash, old_lanman_hash, old_lanman_hash_enc.hash);
 227         } else {
 228                 ZERO_STRUCT(new_lm_password);
 229                 ZERO_STRUCT(old_lanman_hash_enc);
 230         }
 231
 232         encode_pw_buffer(new_nt_password.data, newpassword, STR_UNICODE);
 233
 234         arcfour_crypt(new_nt_password.data, old_nt_hash, 516);
 235         E_old_pw_hash(new_nt_hash, old_nt_hash, old_nt_hash_enc.hash);
 236
 237         status = rpccli_samr_ChangePasswordUser3(cli, mem_ctx,
 238                                                  &server,
 239                                                  &account,
 240                                                  &new_nt_password,
 241                                                  &old_nt_hash_enc,
 242                                                  true,
 243                                                  &new_lm_password,
 244                                                  &old_lanman_hash_enc,
 245                                                  NULL,
 246                                                  dominfo1,
 247                                                  reject);
 248         return status;
 249 }
 250
 251 /* This function returns the bizzare set of (max_entries, max_size) required
 252    for the QueryDisplayInfo RPC to actually work against a domain controller
 253    with large (10k and higher) numbers of users.  These values were
 254    obtained by inspection using ethereal and NT4 running User Manager. */
 255
 256 void get_query_dispinfo_params(int loop_count, uint32 *max_entries,
 257                                uint32 *max_size)
 258 {
 259         switch(loop_count) {
 260         case 0:
 261                 *max_entries = 512;
 262                 *max_size = 16383;
 263                 break;
 264         case 1:
 265                 *max_entries = 1024;
 266                 *max_size = 32766;
 267                 break;
 268         case 2:
 269                 *max_entries = 2048;
 270                 *max_size = 65532;
 271                 break;
 272         case 3:
 273                 *max_entries = 4096;
 274                 *max_size = 131064;
 275                 break;
 276         default:              /* loop_count >= 4 */
 277                 *max_entries = 4096;
 278                 *max_size = 131071;
 279                 break;
 280         }
 281 }
 282
 283 NTSTATUS rpccli_try_samr_connects(struct rpc_pipe_client *cli,
 284                                   TALLOC_CTX *mem_ctx,
 285                                   uint32_t access_mask,
 286                                   struct policy_handle *connect_pol)
 287 {
 288         NTSTATUS status;
 289         union samr_ConnectInfo info_in, info_out;
 290         struct samr_ConnectInfo1 info1;
 291         uint32_t lvl_out = 0;
 292
 293         ZERO_STRUCT(info1);
 294
 295         info1.client_version = SAMR_CONNECT_W2K;
 296         info_in.info1 = info1;
 297
 298         status = rpccli_samr_Connect5(cli, mem_ctx,
 299                                       cli->srv_name_slash,
 300                                       access_mask,
 301                                       1,
 302                                       &info_in,
 303                                       &lvl_out,
 304                                       &info_out,
 305                                       connect_pol);
 306         if (NT_STATUS_IS_OK(status)) {
 307                 return status;
 308         }
 309
 310         status = rpccli_samr_Connect4(cli, mem_ctx,
 311                                       cli->srv_name_slash,
 312                                       SAMR_CONNECT_W2K,
 313                                       access_mask,
 314                                       connect_pol);
 315         if (NT_STATUS_IS_OK(status)) {
 316                 return status;
 317         }
 318
 319         status = rpccli_samr_Connect2(cli, mem_ctx,
 320                                       cli->srv_name_slash,
 321                                       access_mask,
 322                                       connect_pol);
 323         return status;
 324 }
 325