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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/raw/libcliraw.h"
  25 #include "system/filesys.h"
  26 #include "auth/auth.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 {
  40         struct smbcli_session *session;
  41         uint16_t flags2;
  42         uint32_t capabilities;
  43
  44         session = talloc_zero(parent_ctx, struct smbcli_session);
  45         if (!session) {
  46                 return NULL;
  47         }
  48
  49         if (primary) {
  50                 session->transport = talloc_steal(session, transport);
  51         } else {
  52                 session->transport = talloc_reference(session, transport);
  53         }
  54         session->pid = (uint16_t)getpid();
  55         session->vuid = UID_FIELD_INVALID;
  56
  57         capabilities = transport->negotiate.capabilities;
  58
  59         flags2 = FLAGS2_LONG_PATH_COMPONENTS | FLAGS2_EXTENDED_ATTRIBUTES;
  60
  61         if (capabilities & CAP_UNICODE) {
  62                 flags2 |= FLAGS2_UNICODE_STRINGS;
  63         }
  64         if (capabilities & CAP_STATUS32) {
  65                 flags2 |= FLAGS2_32_BIT_ERROR_CODES;
  66         }
  67         if (capabilities & CAP_EXTENDED_SECURITY) {
  68                 flags2 |= FLAGS2_EXTENDED_SECURITY;
  69         }
  70         if (session->transport->negotiate.sign_info.doing_signing) {
  71                 flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
  72         }
  73
  74         session->flags2 = flags2;
  75
  76         return session;
  77 }
  78
  79 /****************************************************************************
  80  Perform a session setup (async send)
  81 ****************************************************************************/
  82 struct smbcli_request *smb_raw_session_setup_send(struct smbcli_session *session, union smb_sesssetup *parms)
  83 {
  84         struct smbcli_request *req = NULL;
  85
  86         switch (parms->old.level) {
  87         case RAW_SESSSETUP_OLD:
  88                 SETUP_REQUEST_SESSION(SMBsesssetupX, 10, 0);
  89                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
  90                 SSVAL(req->out.vwv, VWV(1), 0);
  91                 SSVAL(req->out.vwv,VWV(2),parms->old.in.bufsize);
  92                 SSVAL(req->out.vwv,VWV(3),parms->old.in.mpx_max);
  93                 SSVAL(req->out.vwv,VWV(4),parms->old.in.vc_num);
  94                 SIVAL(req->out.vwv,VWV(5),parms->old.in.sesskey);
  95                 SSVAL(req->out.vwv,VWV(7),parms->old.in.password.length);
  96                 SIVAL(req->out.vwv,VWV(8), 0); /* reserved */
  97                 smbcli_req_append_blob(req, &parms->old.in.password);
  98                 smbcli_req_append_string(req, parms->old.in.user, STR_TERMINATE);
  99                 smbcli_req_append_string(req, parms->old.in.domain, STR_TERMINATE|STR_UPPER);
 100                 smbcli_req_append_string(req, parms->old.in.os, STR_TERMINATE);
 101                 smbcli_req_append_string(req, parms->old.in.lanman, STR_TERMINATE);
 102                 break;
 103
 104         case RAW_SESSSETUP_NT1:
 105                 SETUP_REQUEST_SESSION(SMBsesssetupX, 13, 0);
 106                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 107                 SSVAL(req->out.vwv, VWV(1), 0);
 108                 SSVAL(req->out.vwv, VWV(2), parms->nt1.in.bufsize);
 109                 SSVAL(req->out.vwv, VWV(3), parms->nt1.in.mpx_max);
 110                 SSVAL(req->out.vwv, VWV(4), parms->nt1.in.vc_num);
 111                 SIVAL(req->out.vwv, VWV(5), parms->nt1.in.sesskey);
 112                 SSVAL(req->out.vwv, VWV(7), parms->nt1.in.password1.length);
 113                 SSVAL(req->out.vwv, VWV(8), parms->nt1.in.password2.length);
 114                 SIVAL(req->out.vwv, VWV(9), 0); /* reserved */
 115                 SIVAL(req->out.vwv, VWV(11), parms->nt1.in.capabilities);
 116                 smbcli_req_append_blob(req, &parms->nt1.in.password1);
 117                 smbcli_req_append_blob(req, &parms->nt1.in.password2);
 118                 smbcli_req_append_string(req, parms->nt1.in.user, STR_TERMINATE);
 119                 smbcli_req_append_string(req, parms->nt1.in.domain, STR_TERMINATE|STR_UPPER);
 120                 smbcli_req_append_string(req, parms->nt1.in.os, STR_TERMINATE);
 121                 smbcli_req_append_string(req, parms->nt1.in.lanman, STR_TERMINATE);
 122                 break;
 123
 124         case RAW_SESSSETUP_SPNEGO:
 125                 SETUP_REQUEST_SESSION(SMBsesssetupX, 12, 0);
 126                 SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 127                 SSVAL(req->out.vwv, VWV(1), 0);
 128                 SSVAL(req->out.vwv, VWV(2), parms->spnego.in.bufsize);
 129                 SSVAL(req->out.vwv, VWV(3), parms->spnego.in.mpx_max);
 130                 SSVAL(req->out.vwv, VWV(4), parms->spnego.in.vc_num);
 131                 SIVAL(req->out.vwv, VWV(5), parms->spnego.in.sesskey);
 132                 SSVAL(req->out.vwv, VWV(7), parms->spnego.in.secblob.length);
 133                 SIVAL(req->out.vwv, VWV(8), 0); /* reserved */
 134                 SIVAL(req->out.vwv, VWV(10), parms->spnego.in.capabilities);
 135                 smbcli_req_append_blob(req, &parms->spnego.in.secblob);
 136                 smbcli_req_append_string(req, parms->spnego.in.os, STR_TERMINATE);
 137                 smbcli_req_append_string(req, parms->spnego.in.lanman, STR_TERMINATE);
 138                 smbcli_req_append_string(req, parms->spnego.in.domain, STR_TERMINATE);
 139                 break;
 140         }
 141
 142         if (!smbcli_request_send(req)) {
 143                 smbcli_request_destroy(req);
 144                 return NULL;
 145         }
 146
 147         return req;
 148 }
 149
 150
 151 /****************************************************************************
 152  Perform a session setup (async recv)
 153 ****************************************************************************/
 154 NTSTATUS smb_raw_session_setup_recv(struct smbcli_request *req,
 155                                     TALLOC_CTX *mem_ctx,
 156                                     union smb_sesssetup *parms)
 157 {
 158         uint16_t len;
 159         uint8_t *p;
 160
 161         if (!smbcli_request_receive(req)) {
 162                 return smbcli_request_destroy(req);
 163         }
 164
 165         if (!NT_STATUS_IS_OK(req->status) &&
 166             !NT_STATUS_EQUAL(req->status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 167                 return smbcli_request_destroy(req);
 168         }
 169
 170         switch (parms->old.level) {
 171         case RAW_SESSSETUP_OLD:
 172                 SMBCLI_CHECK_WCT(req, 3);
 173                 ZERO_STRUCT(parms->old.out);
 174                 parms->old.out.vuid = SVAL(req->in.hdr, HDR_UID);
 175                 parms->old.out.action = SVAL(req->in.vwv, VWV(2));
 176                 p = req->in.data;
 177                 if (p) {
 178                         p += smbcli_req_pull_string(req, mem_ctx, &parms->old.out.os, p, -1, STR_TERMINATE);
 179                         p += smbcli_req_pull_string(req, mem_ctx, &parms->old.out.lanman, p, -1, STR_TERMINATE);
 180                         p += smbcli_req_pull_string(req, mem_ctx, &parms->old.out.domain, p, -1, STR_TERMINATE);
 181                 }
 182                 break;
 183
 184         case RAW_SESSSETUP_NT1:
 185                 SMBCLI_CHECK_WCT(req, 3);
 186                 ZERO_STRUCT(parms->nt1.out);
 187                 parms->nt1.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 188                 parms->nt1.out.action = SVAL(req->in.vwv, VWV(2));
 189                 p = req->in.data;
 190                 if (p) {
 191                         p += smbcli_req_pull_string(req, mem_ctx, &parms->nt1.out.os, p, -1, STR_TERMINATE);
 192                         p += smbcli_req_pull_string(req, mem_ctx, &parms->nt1.out.lanman, p, -1, STR_TERMINATE);
 193                         if (p < (req->in.data + req->in.data_size)) {
 194                                 p += smbcli_req_pull_string(req, mem_ctx, &parms->nt1.out.domain, p, -1, STR_TERMINATE);
 195                         }
 196                 }
 197                 break;
 198
 199         case RAW_SESSSETUP_SPNEGO:
 200                 SMBCLI_CHECK_WCT(req, 4);
 201                 ZERO_STRUCT(parms->spnego.out);
 202                 parms->spnego.out.vuid   = SVAL(req->in.hdr, HDR_UID);
 203                 parms->spnego.out.action = SVAL(req->in.vwv, VWV(2));
 204                 len                      = SVAL(req->in.vwv, VWV(3));
 205                 p = req->in.data;
 206                 if (!p) {
 207                         break;
 208                 }
 209
 210                 parms->spnego.out.secblob = smbcli_req_pull_blob(req, mem_ctx, p, len);
 211                 p += parms->spnego.out.secblob.length;
 212                 p += smbcli_req_pull_string(req, mem_ctx, &parms->spnego.out.os, p, -1, STR_TERMINATE);
 213                 p += smbcli_req_pull_string(req, mem_ctx, &parms->spnego.out.lanman, p, -1, STR_TERMINATE);
 214                 p += smbcli_req_pull_string(req, mem_ctx, &parms->spnego.out.domain, p, -1, STR_TERMINATE);
 215                 break;
 216         }
 217
 218 failed:
 219         return smbcli_request_destroy(req);
 220 }
 221
 222
 223 /*
 224  Perform a session setup (sync interface)
 225 */
 226 NTSTATUS smb_raw_session_setup(struct smbcli_session *session, TALLOC_CTX *mem_ctx,
 227                                union smb_sesssetup *parms)
 228 {
 229         struct smbcli_request *req = smb_raw_session_setup_send(session, parms);
 230         return smb_raw_session_setup_recv(req, mem_ctx, parms);
 231 }
 232
 233
 234 /****************************************************************************
 235  Send a uloggoff (async send)
 236 *****************************************************************************/
 237 struct smbcli_request *smb_raw_ulogoff_send(struct smbcli_session *session)
 238 {
 239         struct smbcli_request *req;
 240
 241         SETUP_REQUEST_SESSION(SMBulogoffX, 2, 0);
 242
 243         SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
 244         SSVAL(req->out.vwv, VWV(1), 0);
 245
 246         if (!smbcli_request_send(req)) {
 247                 smbcli_request_destroy(req);
 248                 return NULL;
 249         }
 250
 251         return req;
 252 }
 253
 254 /****************************************************************************
 255  Send a uloggoff (sync interface)
 256 *****************************************************************************/
 257 NTSTATUS smb_raw_ulogoff(struct smbcli_session *session)
 258 {
 259         struct smbcli_request *req = smb_raw_ulogoff_send(session);
 260         return smbcli_request_simple_recv(req);
 261 }
 262
 263
 264 /****************************************************************************
 265  Send a exit (async send)
 266 *****************************************************************************/
 267 struct smbcli_request *smb_raw_exit_send(struct smbcli_session *session)
 268 {
 269         struct smbcli_request *req;
 270
 271         SETUP_REQUEST_SESSION(SMBexit, 0, 0);
 272
 273         if (!smbcli_request_send(req)) {
 274                 smbcli_request_destroy(req);
 275                 return NULL;
 276         }
 277
 278         return req;
 279 }
 280
 281 /****************************************************************************
 282  Send a exit (sync interface)
 283 *****************************************************************************/
 284 NTSTATUS smb_raw_exit(struct smbcli_session *session)
 285 {
 286         struct smbcli_request *req = smb_raw_exit_send(session);
 287         return smbcli_request_simple_recv(req);
 288 }