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 "libcli/raw/raw_proto.h"
  25 #include "system/filesys.h"
  26 #include "../libcli/smb/smbXcli_base.h"
  27
  28 #define SETUP_REQUEST_SESSION(cmd, wct, buflen) do { \
  29         req = smbcli_request_setup_session(session, cmd, wct, buflen); \
  30         if (!req) return NULL; \
  31 } while (0)
  32
  33
  34 /****************************************************************************
  35  Initialize the session context
  36 ****************************************************************************/
  37 struct smbcli_session *smbcli_session_init(struct smbcli_transport *transport,
  38                                            TALLOC_CTX *parent_ctx, bool primary,
  39                                            struct smbcli_session_options options)
  40 {
  41         struct smbcli_session *session;
  42         uint16_t flags2;
  43         uint32_t capabilities;
  44
  45         session = talloc_zero(parent_ctx, struct smbcli_session);
  46         if (!session) {
  47                 return NULL;
  48         }
  49
  50         if (primary) {
  51                 session->transport = talloc_steal(session, transport);
  52         } else {
  53                 session->transport = talloc_reference(session, transport);
  54         }
  55         session->pid = (uint16_t)getpid();
  56         session->vuid = UID_FIELD_INVALID;
  57         session->options = options;
  58
  59         /*
  60          * for now session->vuid is still used by the callers, but we call:
  61          * smb1cli_session_set_id(session->smbXcli, session->vuid);
  62          * before using session->smbXcli, in future we should remove
  63          * session->vuid.
  64          */
  65         session->smbXcli = smbXcli_session_create(session, transport->conn);
  66         if (session->smbXcli == NULL) {
  67                 talloc_free(session);
  68                 return NULL;
  69         }
  70
  71         capabilities = transport->negotiate.capabilities;
  72
  73         flags2 = FLAGS2_LONG_PATH_COMPONENTS | FLAGS2_EXTENDED_ATTRIBUTES;
  74
  75         if (capabilities & CAP_UNICODE) {
  76                 flags2 |= FLAGS2_UNICODE_STRINGS;
  77         }
  78         if (capabilities & CAP_STATUS32) {
  79                 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
  80         }
  81         if (capabilities & CAP_EXTENDED_SECURITY) {
  82                 flags2 |= FLAGS2_EXTENDED_SECURITY;
  83         }
  84         if (smb1cli_conn_signing_is_active(session->transport->conn)) {
  85                 flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
  86         }
  87
  88         session->flags2 = flags2;
  89
  90         return session;
  91 }
  92
  93 /****************************************************************************
  94  Perform a session setup (async send)
  95 ****************************************************************************/
  96 struct smbcli_request *smb_raw_sesssetup_send(struct smbcli_session *session,
  97                                               union smb_sesssetup *parms)
  98 {
  99         struct smbcli_request *req = NULL;
 100
 101         switch (parms->old.level) {
 102         case RAW_SESSSETUP_OLD:
 103                 SETUP_REQUEST_SESSION(SMBsesssetupX, 10, 0);
 104                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 105                 SSVAL(req->out.vwv, VWV(1), 0);
 106                 SSVAL(req->out.vwv,VWV(2),parms->old.in.bufsize);
 107                 SSVAL(req->out.vwv,VWV(3),parms->old.in.mpx_max);
 108                 SSVAL(req->out.vwv,VWV(4),parms->old.in.vc_num);
 109                 SIVAL(req->out.vwv,VWV(5),parms->old.in.sesskey);
 110                 SSVAL(req->out.vwv,VWV(7),parms->old.in.password.length);
 111                 SIVAL(req->out.vwv,VWV(8), 0); /* reserved */
 112                 smbcli_req_append_blob(req, &parms->old.in.password);
 113                 smbcli_req_append_string(req, parms->old.in.user, STR_TERMINATE);
 114                 smbcli_req_append_string(req, parms->old.in.domain, STR_TERMINATE|STR_UPPER);
 115                 smbcli_req_append_string(req, parms->old.in.os, STR_TERMINATE);
 116                 smbcli_req_append_string(req, parms->old.in.lanman, STR_TERMINATE);
 117                 break;
 118
 119         case RAW_SESSSETUP_NT1:
 120                 SETUP_REQUEST_SESSION(SMBsesssetupX, 13, 0);
 121                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 122                 SSVAL(req->out.vwv, VWV(1), 0);
 123                 SSVAL(req->out.vwv, VWV(2), parms->nt1.in.bufsize);
 124                 SSVAL(req->out.vwv, VWV(3), parms->nt1.in.mpx_max);
 125                 SSVAL(req->out.vwv, VWV(4), parms->nt1.in.vc_num);
 126                 SIVAL(req->out.vwv, VWV(5), parms->nt1.in.sesskey);
 127                 SSVAL(req->out.vwv, VWV(7), parms->nt1.in.password1.length);
 128                 SSVAL(req->out.vwv, VWV(8), parms->nt1.in.password2.length);
 129                 SIVAL(req->out.vwv, VWV(9), 0); /* reserved */
 130                 SIVAL(req->out.vwv, VWV(11), parms->nt1.in.capabilities);
 131                 smbcli_req_append_blob(req, &parms->nt1.in.password1);
 132                 smbcli_req_append_blob(req, &parms->nt1.in.password2);
 133                 smbcli_req_append_string(req, parms->nt1.in.user, STR_TERMINATE);
 134                 smbcli_req_append_string(req, parms->nt1.in.domain, STR_TERMINATE|STR_UPPER);
 135                 smbcli_req_append_string(req, parms->nt1.in.os, STR_TERMINATE);
 136                 smbcli_req_append_string(req, parms->nt1.in.lanman, STR_TERMINATE);
 137                 break;
 138
 139         case RAW_SESSSETUP_SPNEGO:
 140                 SETUP_REQUEST_SESSION(SMBsesssetupX, 12, 0);
 141                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 142                 SSVAL(req->out.vwv, VWV(1), 0);
 143                 SSVAL(req->out.vwv, VWV(2), parms->spnego.in.bufsize);
 144                 SSVAL(req->out.vwv, VWV(3), parms->spnego.in.mpx_max);
 145                 SSVAL(req->out.vwv, VWV(4), parms->spnego.in.vc_num);
 146                 SIVAL(req->out.vwv, VWV(5), parms->spnego.in.sesskey);
 147                 SSVAL(req->out.vwv, VWV(7), parms->spnego.in.secblob.length);
 148                 SIVAL(req->out.vwv, VWV(8), 0); /* reserved */
 149                 SIVAL(req->out.vwv, VWV(10), parms->spnego.in.capabilities);
 150                 smbcli_req_append_blob(req, &parms->spnego.in.secblob);
 151                 smbcli_req_append_string(req, parms->spnego.in.os, STR_TERMINATE);
 152                 smbcli_req_append_string(req, parms->spnego.in.lanman, STR_TERMINATE);
 153                 smbcli_req_append_string(req, parms->spnego.in.workgroup, STR_TERMINATE);
 154                 break;
 155
 156         case RAW_SESSSETUP_SMB2:
 157                 return NULL;
 158         }
 159
 160         if (!smbcli_request_send(req)) {
 161                 smbcli_request_destroy(req);
 162                 return NULL;
 163         }
 164
 165         return req;
 166 }
 167
 168
 169 /****************************************************************************
 170  Perform a session setup (async recv)
 171 ****************************************************************************/
 172 NTSTATUS smb_raw_sesssetup_recv(struct smbcli_request *req,
 173                                 TALLOC_CTX *mem_ctx,
 174                                 union smb_sesssetup *parms)
 175 {
 176         uint16_t len;
 177         uint8_t *p;
 178
 179         if (!smbcli_request_receive(req)) {
 180                 return smbcli_request_destroy(req);
 181         }
 182
 183         if (!NT_STATUS_IS_OK(req->status) &&
 184             !NT_STATUS_EQUAL(req->status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 185                 return smbcli_request_destroy(req);
 186         }
 187
 188         switch (parms->old.level) {
 189         case RAW_SESSSETUP_OLD:
 190                 SMBCLI_CHECK_WCT(req, 3);
 191                 ZERO_STRUCT(parms->old.out);
 192                 parms->old.out.vuid = SVAL(req->in.hdr, HDR_UID);
 193                 parms->old.out.action = SVAL(req->in.vwv, VWV(2));
 194                 p = req->in.data;
 195                 if (p) {
 196                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.os, p, -1, STR_TERMINATE);
 197                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.lanman, p, -1, STR_TERMINATE);
 198                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->old.out.domain, p, -1, STR_TERMINATE);
 199                 }
 200                 break;
 201
 202         case RAW_SESSSETUP_NT1:
 203                 SMBCLI_CHECK_WCT(req, 3);
 204                 ZERO_STRUCT(parms->nt1.out);
 205                 parms->nt1.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 206                 parms->nt1.out.action = SVAL(req->in.vwv, VWV(2));
 207                 p = req->in.data;
 208                 if (p) {
 209                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.os, p, -1, STR_TERMINATE);
 210                         p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.lanman, p, -1, STR_TERMINATE);
 211                         if (p < (req->in.data + req->in.data_size)) {
 212                                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->nt1.out.domain, p, -1, STR_TERMINATE);
 213                         }
 214                 }
 215                 break;
 216
 217         case RAW_SESSSETUP_SPNEGO:
 218                 SMBCLI_CHECK_WCT(req, 4);
 219                 ZERO_STRUCT(parms->spnego.out);
 220                 parms->spnego.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 221                 parms->spnego.out.action = SVAL(req->in.vwv, VWV(2));
 222                 len                      = SVAL(req->in.vwv, VWV(3));
 223                 p = req->in.data;
 224                 if (!p) {
 225                         break;
 226                 }
 227
 228                 parms->spnego.out.secblob = smbcli_req_pull_blob(&req->in.bufinfo, mem_ctx, p, len);
 229                 p += parms->spnego.out.secblob.length;
 230                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.os, p, -1, STR_TERMINATE);
 231                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.lanman, p, -1, STR_TERMINATE);
 232                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->spnego.out.workgroup, p, -1, STR_TERMINATE);
 233                 break;
 234
 235         case RAW_SESSSETUP_SMB2:
 236                 req->status = NT_STATUS_INTERNAL_ERROR;
 237                 break;
 238         }
 239
 240 failed:
 241         return smbcli_request_destroy(req);
 242 }
 243
 244
 245 /*
 246  Perform a session setup (sync interface)
 247 */
 248 NTSTATUS smb_raw_sesssetup(struct smbcli_session *session,
 249                            TALLOC_CTX *mem_ctx, union smb_sesssetup *parms)
 250 {
 251         struct smbcli_request *req = smb_raw_sesssetup_send(session, parms);
 252         return smb_raw_sesssetup_recv(req, mem_ctx, parms);
 253 }
 254
 255
 256 /****************************************************************************
 257  Send a ulogoff (async send)
 258 *****************************************************************************/
 259 struct smbcli_request *smb_raw_ulogoff_send(struct smbcli_session *session)
 260 {
 261         struct smbcli_request *req;
 262
 263         SETUP_REQUEST_SESSION(SMBulogoffX, 2, 0);
 264
 265         SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 266         SSVAL(req->out.vwv, VWV(1), 0);
 267
 268         if (!smbcli_request_send(req)) {
 269                 smbcli_request_destroy(req);
 270                 return NULL;
 271         }
 272
 273         return req;
 274 }
 275
 276 /****************************************************************************
 277  Send a ulogoff (sync interface)
 278 *****************************************************************************/
 279 NTSTATUS smb_raw_ulogoff(struct smbcli_session *session)
 280 {
 281         struct smbcli_request *req = smb_raw_ulogoff_send(session);
 282         return smbcli_request_simple_recv(req);
 283 }
 284
 285
 286 /****************************************************************************
 287  Send a exit (async send)
 288 *****************************************************************************/
 289 struct smbcli_request *smb_raw_exit_send(struct smbcli_session *session)
 290 {
 291         struct smbcli_request *req;
 292
 293         SETUP_REQUEST_SESSION(SMBexit, 0, 0);
 294
 295         if (!smbcli_request_send(req)) {
 296                 smbcli_request_destroy(req);
 297                 return NULL;
 298         }
 299
 300         return req;
 301 }
 302
 303 /****************************************************************************
 304  Send a exit (sync interface)
 305 *****************************************************************************/
 306 _PUBLIC_ NTSTATUS smb_raw_exit(struct smbcli_session *session)
 307 {
 308         struct smbcli_request *req = smb_raw_exit_send(session);
 309         return smbcli_request_simple_recv(req);
 310 }