source4/libcli/raw/clisession.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB client session context management functions
   4
   5    Copyright (C) Andrew Tridgell 1994-2005
   6    Copyright (C) James Myers 2003 <myersjj@samba.org>
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/raw/libcliraw.h"
  24 #include "system/filesys.h"
  25 #include "param/param.h"
  26
  27 #define SETUP_REQUEST_SESSION(cmd, wct, buflen) do { \
  28         req = smbcli_request_setup_session(session, cmd, wct, buflen); \
  29         if (!req) return NULL; \
  30 } while (0)
  31
  32
  33 /****************************************************************************
  34  Initialize the session context
  35 ****************************************************************************/
  36 struct smbcli_session *smbcli_session_init(struct smbcli_transport *transport,
  37                                            TALLOC_CTX *parent_ctx, bool primary)
  38 {
  39         struct smbcli_session *session;
  40         uint16_t flags2;
  41         uint32_t capabilities;
  42
  43         session = talloc_zero(parent_ctx, struct smbcli_session);
  44         if (!session) {
  45                 return NULL;
  46         }
  47
  48         if (primary) {
  49                 session->transport = talloc_steal(session, transport);
  50         } else {
  51                 session->transport = talloc_reference(session, transport);
  52         }
  53         session->pid = (uint16_t)getpid();
  54         session->vuid = UID_FIELD_INVALID;
  55         session->options.lanman_auth = lp_client_lanman_auth(global_loadparm);
  56         session->options.ntlmv2_auth = lp_client_ntlmv2_auth(global_loadparm);
  57         session->options.plaintext_auth = lp_client_plaintext_auth(global_loadparm);
  58
  59         capabilities = transport->negotiate.capabilities;
  60
  61         flags2 = FLAGS2_LONG_PATH_COMPONENTS | FLAGS2_EXTENDED_ATTRIBUTES;
  62
  63         if (capabilities & CAP_UNICODE) {
  64                 flags2 |= FLAGS2_UNICODE_STRINGS;
  65         }
  66         if (capabilities & CAP_STATUS32) {
  67                 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
  68         }
  69         if (capabilities & CAP_EXTENDED_SECURITY) {
  70                 flags2 |= FLAGS2_EXTENDED_SECURITY;
  71         }
  72         if (session->transport->negotiate.sign_info.doing_signing) {
  73                 flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
  74         }
  75
  76         session->flags2 = flags2;
  77
  78         return session;
  79 }
  80
  81 /****************************************************************************
  82  Perform a session setup (async send)
  83 ****************************************************************************/
  84 struct smbcli_request *smb_raw_sesssetup_send(struct smbcli_session *session,
  85                                               union smb_sesssetup *parms)
  86 {
  87         struct smbcli_request *req = NULL;
  88
  89         switch (parms->old.level) {
  90         case RAW_SESSSETUP_OLD:
  91                 SETUP_REQUEST_SESSION(SMBsesssetupX, 10, 0);
  92                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
  93                 SSVAL(req->out.vwv, VWV(1), 0);
  94                 SSVAL(req->out.vwv,VWV(2),parms->old.in.bufsize);
  95                 SSVAL(req->out.vwv,VWV(3),parms->old.in.mpx_max);
  96                 SSVAL(req->out.vwv,VWV(4),parms->old.in.vc_num);
  97                 SIVAL(req->out.vwv,VWV(5),parms->old.in.sesskey);
  98                 SSVAL(req->out.vwv,VWV(7),parms->old.in.password.length);
  99                 SIVAL(req->out.vwv,VWV(8), 0); /* reserved */
 100                 smbcli_req_append_blob(req, &parms->old.in.password);
 101                 smbcli_req_append_string(req, parms->old.in.user, STR_TERMINATE);
 102                 smbcli_req_append_string(req, parms->old.in.domain, STR_TERMINATE|STR_UPPER);
 103                 smbcli_req_append_string(req, parms->old.in.os, STR_TERMINATE);
 104                 smbcli_req_append_string(req, parms->old.in.lanman, STR_TERMINATE);
 105                 break;
 106
 107         case RAW_SESSSETUP_NT1:
 108                 SETUP_REQUEST_SESSION(SMBsesssetupX, 13, 0);
 109                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 110                 SSVAL(req->out.vwv, VWV(1), 0);
 111                 SSVAL(req->out.vwv, VWV(2), parms->nt1.in.bufsize);
 112                 SSVAL(req->out.vwv, VWV(3), parms->nt1.in.mpx_max);
 113                 SSVAL(req->out.vwv, VWV(4), parms->nt1.in.vc_num);
 114                 SIVAL(req->out.vwv, VWV(5), parms->nt1.in.sesskey);
 115                 SSVAL(req->out.vwv, VWV(7), parms->nt1.in.password1.length);
 116                 SSVAL(req->out.vwv, VWV(8), parms->nt1.in.password2.length);
 117                 SIVAL(req->out.vwv, VWV(9), 0); /* reserved */
 118                 SIVAL(req->out.vwv, VWV(11), parms->nt1.in.capabilities);
 119                 smbcli_req_append_blob(req, &parms->nt1.in.password1);
 120                 smbcli_req_append_blob(req, &parms->nt1.in.password2);
 121                 smbcli_req_append_string(req, parms->nt1.in.user, STR_TERMINATE);
 122                 smbcli_req_append_string(req, parms->nt1.in.domain, STR_TERMINATE|STR_UPPER);
 123                 smbcli_req_append_string(req, parms->nt1.in.os, STR_TERMINATE);
 124                 smbcli_req_append_string(req, parms->nt1.in.lanman, STR_TERMINATE);
 125                 break;
 126
 127         case RAW_SESSSETUP_SPNEGO:
 128                 SETUP_REQUEST_SESSION(SMBsesssetupX, 12, 0);
 129                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 130                 SSVAL(req->out.vwv, VWV(1), 0);
 131                 SSVAL(req->out.vwv, VWV(2), parms->spnego.in.bufsize);
 132                 SSVAL(req->out.vwv, VWV(3), parms->spnego.in.mpx_max);
 133                 SSVAL(req->out.vwv, VWV(4), parms->spnego.in.vc_num);
 134                 SIVAL(req->out.vwv, VWV(5), parms->spnego.in.sesskey);
 135                 SSVAL(req->out.vwv, VWV(7), parms->spnego.in.secblob.length);
 136                 SIVAL(req->out.vwv, VWV(8), 0); /* reserved */
 137                 SIVAL(req->out.vwv, VWV(10), parms->spnego.in.capabilities);
 138                 smbcli_req_append_blob(req, &parms->spnego.in.secblob);
 139                 smbcli_req_append_string(req, parms->spnego.in.os, STR_TERMINATE);
 140                 smbcli_req_append_string(req, parms->spnego.in.lanman, STR_TERMINATE);
 141                 smbcli_req_append_string(req, parms->spnego.in.workgroup, STR_TERMINATE);
 142                 break;
 143
 144         case RAW_SESSSETUP_SMB2:
 145                 return NULL;
 146         }
 147
 148         if (!smbcli_request_send(req)) {
 149                 smbcli_request_destroy(req);
 150                 return NULL;
 151         }
 152
 153         return req;
 154 }
 155
 156
 157 /****************************************************************************
 158  Perform a session setup (async recv)
 159 ****************************************************************************/
 160 NTSTATUS smb_raw_sesssetup_recv(struct smbcli_request *req,
 161                                 TALLOC_CTX *mem_ctx,
 162                                 union smb_sesssetup *parms)
 163 {
 164         uint16_t len;
 165         uint8_t *p;
 166
 167         if (!smbcli_request_receive(req)) {
 168                 return smbcli_request_destroy(req);
 169         }
 170
 171         if (!NT_STATUS_IS_OK(req->status) &&
 172             !NT_STATUS_EQUAL(req->status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 173                 return smbcli_request_destroy(req);
 174         }
 175
 176         switch (parms->old.level) {
 177         case RAW_SESSSETUP_OLD:
 178                 SMBCLI_CHECK_WCT(req, 3);
 179                 ZERO_STRUCT(parms->old.out);
 180                 parms->old.out.vuid = SVAL(req->in.hdr, HDR_UID);
 181                 parms->old.out.action = SVAL(req->in.vwv, VWV(2));
 182                 p = req->in.data;
 183                 if (p) {
 184                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.os, p, -1, STR_TERMINATE);
 185                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.lanman, p, -1, STR_TERMINATE);
 186                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.domain, p, -1, STR_TERMINATE);
 187                 }
 188                 break;
 189
 190         case RAW_SESSSETUP_NT1:
 191                 SMBCLI_CHECK_WCT(req, 3);
 192                 ZERO_STRUCT(parms->nt1.out);
 193                 parms->nt1.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 194                 parms->nt1.out.action = SVAL(req->in.vwv, VWV(2));
 195                 p = req->in.data;
 196                 if (p) {
 197                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.os, p, -1, STR_TERMINATE);
 198                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.lanman, p, -1, STR_TERMINATE);
 199                         if (p < (req->in.data + req->in.data_size)) {
 200                                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.domain, p, -1, STR_TERMINATE);
 201                         }
 202                 }
 203                 break;
 204
 205         case RAW_SESSSETUP_SPNEGO:
 206                 SMBCLI_CHECK_WCT(req, 4);
 207                 ZERO_STRUCT(parms->spnego.out);
 208                 parms->spnego.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 209                 parms->spnego.out.action = SVAL(req->in.vwv, VWV(2));
 210                 len                      = SVAL(req->in.vwv, VWV(3));
 211                 p = req->in.data;
 212                 if (!p) {
 213                         break;
 214                 }
 215
 216                 parms->spnego.out.secblob = smbcli_req_pull_blob(&req->in.bufinfo, mem_ctx, p, len);
 217                 p += parms->spnego.out.secblob.length;
 218                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.os, p, -1, STR_TERMINATE);
 219                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.lanman, p, -1, STR_TERMINATE);
 220                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.workgroup, p, -1, STR_TERMINATE);
 221                 break;
 222
 223         case RAW_SESSSETUP_SMB2:
 224                 req->status = NT_STATUS_INTERNAL_ERROR;
 225                 break;
 226         }
 227
 228 failed:
 229         return smbcli_request_destroy(req);
 230 }
 231
 232
 233 /*
 234  Perform a session setup (sync interface)
 235 */
 236 NTSTATUS smb_raw_sesssetup(struct smbcli_session *session,
 237                            TALLOC_CTX *mem_ctx, union smb_sesssetup *parms)
 238 {
 239         struct smbcli_request *req = smb_raw_sesssetup_send(session, parms);
 240         return smb_raw_sesssetup_recv(req, mem_ctx, parms);
 241 }
 242
 243
 244 /****************************************************************************
 245  Send a ulogoff (async send)
 246 *****************************************************************************/
 247 struct smbcli_request *smb_raw_ulogoff_send(struct smbcli_session *session)
 248 {
 249         struct smbcli_request *req;
 250
 251         SETUP_REQUEST_SESSION(SMBulogoffX, 2, 0);
 252
 253         SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 254         SSVAL(req->out.vwv, VWV(1), 0);
 255
 256         if (!smbcli_request_send(req)) {
 257                 smbcli_request_destroy(req);
 258                 return NULL;
 259         }
 260
 261         return req;
 262 }
 263
 264 /****************************************************************************
 265  Send a ulogoff (sync interface)
 266 *****************************************************************************/
 267 NTSTATUS smb_raw_ulogoff(struct smbcli_session *session)
 268 {
 269         struct smbcli_request *req = smb_raw_ulogoff_send(session);
 270         return smbcli_request_simple_recv(req);
 271 }
 272
 273
 274 /****************************************************************************
 275  Send a exit (async send)
 276 *****************************************************************************/
 277 struct smbcli_request *smb_raw_exit_send(struct smbcli_session *session)
 278 {
 279         struct smbcli_request *req;
 280
 281         SETUP_REQUEST_SESSION(SMBexit, 0, 0);
 282
 283         if (!smbcli_request_send(req)) {
 284                 smbcli_request_destroy(req);
 285                 return NULL;
 286         }
 287
 288         return req;
 289 }
 290
 291 /****************************************************************************
 292  Send a exit (sync interface)
 293 *****************************************************************************/
 294 NTSTATUS smb_raw_exit(struct smbcli_session *session)
 295 {
 296         struct smbcli_request *req = smb_raw_exit_send(session);
 297         return smbcli_request_simple_recv(req);
 298 }