source4/libcli/cliconnect.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    client connect/disconnect routines
   5
   6    Copyright (C) Andrew Tridgell 2003-2005
   7    Copyright (C) James Peach 2005
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/libcli.h"
  25 #include "libcli/raw/libcliraw.h"
  26 #include "libcli/raw/raw_proto.h"
  27 #include "libcli/auth/libcli_auth.h"
  28 #include "libcli/smb_composite/smb_composite.h"
  29
  30 /*
  31   wrapper around smbcli_sock_connect()
  32 */
  33 bool smbcli_socket_connect(struct smbcli_state *cli, const char *server,
  34                            const char **ports,
  35                            struct tevent_context *ev_ctx,
  36                            struct resolve_context *resolve_ctx,
  37                            struct smbcli_options *options,
  38                            const char *socket_options,
  39                            struct nbt_name *calling,
  40                            struct nbt_name *called)
  41 {
  42         NTSTATUS status;
  43
  44         cli->options = *options;
  45
  46         status = smbcli_sock_connect(cli,
  47                                      NULL, /* host_addr */
  48                                      ports,
  49                                      server,
  50                                      resolve_ctx,
  51                                      ev_ctx,
  52                                      socket_options,
  53                                      calling,
  54                                      called,
  55                                      &cli->sock);
  56         if (!NT_STATUS_IS_OK(status)) {
  57                 return false;
  58         }
  59
  60         return true;
  61 }
  62
  63 /* wrapper around smb_raw_negotiate() */
  64 NTSTATUS smbcli_negprot(struct smbcli_state *cli, bool unicode, int maxprotocol)
  65 {
  66         if (unicode) {
  67                 cli->options.unicode = 1;
  68         } else {
  69                 cli->options.unicode = 0;
  70         }
  71
  72         cli->transport = smbcli_transport_init(cli->sock, cli,
  73                                                true, &cli->options);
  74         cli->sock = NULL;
  75         if (!cli->transport) {
  76                 return NT_STATUS_NO_MEMORY;
  77         }
  78
  79         return smb_raw_negotiate(cli->transport, unicode, maxprotocol);
  80 }
  81
  82 /* wrapper around smb_raw_sesssetup() */
  83 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  84                               struct cli_credentials *credentials,
  85                               const char *workgroup,
  86                               struct smbcli_session_options options,
  87                               struct gensec_settings *gensec_settings)
  88 {
  89         struct smb_composite_sesssetup setup;
  90         NTSTATUS status;
  91
  92         cli->session = smbcli_session_init(cli->transport, cli, true,
  93                                            options);
  94         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  95
  96         setup.in.sesskey = cli->transport->negotiate.sesskey;
  97         setup.in.capabilities = cli->transport->negotiate.capabilities;
  98         setup.in.credentials = credentials;
  99         setup.in.workgroup = workgroup;
 100         setup.in.gensec_settings = gensec_settings;
 101
 102         status = smb_composite_sesssetup(cli->session, &setup);
 103
 104         cli->session->vuid = setup.out.vuid;
 105
 106         return status;
 107 }
 108
 109 /* wrapper around smb_raw_tcon() */
 110 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
 111                       const char *devtype, const char *password)
 112 {
 113         union smb_tcon tcon;
 114         TALLOC_CTX *mem_ctx;
 115         NTSTATUS status;
 116
 117         cli->tree = smbcli_tree_init(cli->session, cli, true);
 118         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 119
 120         mem_ctx = talloc_init("tcon");
 121         if (!mem_ctx) {
 122                 return NT_STATUS_NO_MEMORY;
 123         }
 124
 125         /* setup a tree connect */
 126         tcon.generic.level = RAW_TCON_TCONX;
 127         tcon.tconx.in.flags = 0;
 128         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 129                 tcon.tconx.in.password = data_blob(NULL, 0);
 130         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 131                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 132                 if (cli->transport->negotiate.secblob.length < 8) {
 133                         return NT_STATUS_INVALID_PARAMETER;
 134                 }
 135                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 136         } else {
 137                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 138         }
 139         tcon.tconx.in.path = sharename;
 140         tcon.tconx.in.device = devtype;
 141
 142         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 143
 144         cli->tree->tid = tcon.tconx.out.tid;
 145
 146         talloc_free(mem_ctx);
 147
 148         return status;
 149 }
 150
 151
 152 /*
 153   easy way to get to a fully connected smbcli_state in one call
 154 */
 155 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 156                                 struct smbcli_state **ret_cli,
 157                                 const char *host,
 158                                 const char **ports,
 159                                 const char *sharename,
 160                                 const char *devtype,
 161                                 const char *socket_options,
 162                                 struct cli_credentials *credentials,
 163                                 struct resolve_context *resolve_ctx,
 164                                 struct tevent_context *ev,
 165                                 struct smbcli_options *options,
 166                                 struct smbcli_session_options *session_options,
 167                                 struct gensec_settings *gensec_settings)
 168 {
 169         struct smbcli_tree *tree;
 170         NTSTATUS status;
 171
 172         *ret_cli = NULL;
 173
 174         status = smbcli_tree_full_connection(parent_ctx,
 175                                              &tree, host, ports,
 176                                              sharename, devtype,
 177                                                  socket_options,
 178                                              credentials, resolve_ctx, ev,
 179                                              options,
 180                                              session_options,
 181                                                  gensec_settings);
 182         if (!NT_STATUS_IS_OK(status)) {
 183                 goto done;
 184         }
 185
 186         (*ret_cli) = smbcli_state_init(parent_ctx);
 187
 188         (*ret_cli)->tree = tree;
 189         (*ret_cli)->session = tree->session;
 190         (*ret_cli)->transport = tree->session->transport;
 191
 192         talloc_steal(*ret_cli, tree);
 193
 194 done:
 195         return status;
 196 }
 197
 198
 199 /*
 200   disconnect the tree
 201 */
 202 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 203 {
 204         return smb_tree_disconnect(cli->tree);
 205 }
 206
 207 /****************************************************************************
 208  Initialise a client state structure.
 209 ****************************************************************************/
 210 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 211 {
 212         return talloc_zero(mem_ctx, struct smbcli_state);
 213 }
 214
 215 /* Insert a NULL at the first separator of the given path and return a pointer
 216  * to the remainder of the string.
 217  */
 218 static char *
 219 terminate_path_at_separator(char * path)
 220 {
 221         char * p;
 222
 223         if (!path) {
 224                 return NULL;
 225         }
 226
 227         if ((p = strchr_m(path, '/'))) {
 228                 *p = '\0';
 229                 return p + 1;
 230         }
 231
 232         if ((p = strchr_m(path, '\\'))) {
 233                 *p = '\0';
 234                 return p + 1;
 235         }
 236
 237         /* No separator. */
 238         return NULL;
 239 }
 240
 241 /*
 242   parse a //server/share type UNC name
 243 */
 244 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 245                       char **hostname, char **sharename)
 246 {
 247         char *p;
 248
 249         if (strncmp(unc_name, "\\\\", 2) &&
 250             strncmp(unc_name, "//", 2)) {
 251                 return false;
 252         }
 253
 254         *hostname = *sharename = NULL;
 255
 256         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 257         p = terminate_path_at_separator(*hostname);
 258
 259         if (p != NULL && *p) {
 260                 *sharename = talloc_strdup(mem_ctx, p);
 261                 terminate_path_at_separator(*sharename);
 262         }
 263
 264         if (*hostname && *sharename) {
 265                 return true;
 266         }
 267
 268         talloc_free(*hostname);
 269         talloc_free(*sharename);
 270         *hostname = *sharename = NULL;
 271         return false;
 272 }
 273
 274
 275