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                            struct smb_iconv_convenience *iconv_convenience,
  39                const char *socket_options)
  40 {
  41         struct smbcli_socket *sock;
  42
  43         sock = smbcli_sock_connect_byname(server, ports, NULL,
  44                                           resolve_ctx, ev_ctx,
  45                       socket_options);
  46
  47         if (sock == NULL) return false;
  48
  49         cli->transport = smbcli_transport_init(sock, cli, true, options,
  50                                                                                    iconv_convenience);
  51         if (!cli->transport) {
  52                 return false;
  53         }
  54
  55         return true;
  56 }
  57
  58 /* wrapper around smbcli_transport_connect() */
  59 bool smbcli_transport_establish(struct smbcli_state *cli,
  60                                 struct nbt_name *calling,
  61                                 struct nbt_name *called)
  62 {
  63         return smbcli_transport_connect(cli->transport, calling, called);
  64 }
  65
  66 /* wrapper around smb_raw_negotiate() */
  67 NTSTATUS smbcli_negprot(struct smbcli_state *cli, bool unicode, int maxprotocol)
  68 {
  69         return smb_raw_negotiate(cli->transport, unicode, maxprotocol);
  70 }
  71
  72 /* wrapper around smb_raw_sesssetup() */
  73 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  74                               struct cli_credentials *credentials,
  75                               const char *workgroup,
  76                               struct smbcli_session_options options,
  77                               struct gensec_settings *gensec_settings)
  78 {
  79         struct smb_composite_sesssetup setup;
  80         NTSTATUS status;
  81
  82         cli->session = smbcli_session_init(cli->transport, cli, true,
  83                                            options);
  84         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  85
  86         setup.in.sesskey = cli->transport->negotiate.sesskey;
  87         setup.in.capabilities = cli->transport->negotiate.capabilities;
  88         setup.in.credentials = credentials;
  89         setup.in.workgroup = workgroup;
  90         setup.in.gensec_settings = gensec_settings;
  91
  92         status = smb_composite_sesssetup(cli->session, &setup);
  93
  94         cli->session->vuid = setup.out.vuid;
  95
  96         return status;
  97 }
  98
  99 /* wrapper around smb_raw_tcon() */
 100 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
 101                       const char *devtype, const char *password)
 102 {
 103         union smb_tcon tcon;
 104         TALLOC_CTX *mem_ctx;
 105         NTSTATUS status;
 106
 107         cli->tree = smbcli_tree_init(cli->session, cli, true);
 108         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 109
 110         mem_ctx = talloc_init("tcon");
 111         if (!mem_ctx) {
 112                 return NT_STATUS_NO_MEMORY;
 113         }
 114
 115         /* setup a tree connect */
 116         tcon.generic.level = RAW_TCON_TCONX;
 117         tcon.tconx.in.flags = 0;
 118         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 119                 tcon.tconx.in.password = data_blob(NULL, 0);
 120         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 121                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 122                 if (cli->transport->negotiate.secblob.length < 8) {
 123                         return NT_STATUS_INVALID_PARAMETER;
 124                 }
 125                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 126         } else {
 127                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 128         }
 129         tcon.tconx.in.path = sharename;
 130         tcon.tconx.in.device = devtype;
 131
 132         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 133
 134         cli->tree->tid = tcon.tconx.out.tid;
 135
 136         talloc_free(mem_ctx);
 137
 138         return status;
 139 }
 140
 141
 142 /*
 143   easy way to get to a fully connected smbcli_state in one call
 144 */
 145 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 146                                 struct smbcli_state **ret_cli,
 147                                 const char *host,
 148                                 const char **ports,
 149                                 const char *sharename,
 150                                 const char *devtype,
 151                                 const char *socket_options,
 152                                 struct cli_credentials *credentials,
 153                                 struct resolve_context *resolve_ctx,
 154                                 struct tevent_context *ev,
 155                                 struct smbcli_options *options,
 156                                 struct smbcli_session_options *session_options,
 157                                 struct smb_iconv_convenience *iconv_convenience,
 158                                 struct gensec_settings *gensec_settings)
 159 {
 160         struct smbcli_tree *tree;
 161         NTSTATUS status;
 162
 163         *ret_cli = NULL;
 164
 165         status = smbcli_tree_full_connection(parent_ctx,
 166                                              &tree, host, ports,
 167                                              sharename, devtype,
 168                                                  socket_options,
 169                                              credentials, resolve_ctx, ev,
 170                                              options,
 171                                              session_options,
 172                                                  iconv_convenience,
 173                                                  gensec_settings);
 174         if (!NT_STATUS_IS_OK(status)) {
 175                 goto done;
 176         }
 177
 178         (*ret_cli) = smbcli_state_init(parent_ctx);
 179
 180         (*ret_cli)->tree = tree;
 181         (*ret_cli)->session = tree->session;
 182         (*ret_cli)->transport = tree->session->transport;
 183
 184         talloc_steal(*ret_cli, tree);
 185
 186 done:
 187         return status;
 188 }
 189
 190
 191 /*
 192   disconnect the tree
 193 */
 194 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 195 {
 196         return smb_tree_disconnect(cli->tree);
 197 }
 198
 199 /****************************************************************************
 200  Initialise a client state structure.
 201 ****************************************************************************/
 202 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 203 {
 204         return talloc_zero(mem_ctx, struct smbcli_state);
 205 }
 206
 207 /* Insert a NULL at the first separator of the given path and return a pointer
 208  * to the remainder of the string.
 209  */
 210 static char *
 211 terminate_path_at_separator(char * path)
 212 {
 213         char * p;
 214
 215         if (!path) {
 216                 return NULL;
 217         }
 218
 219         if ((p = strchr_m(path, '/'))) {
 220                 *p = '\0';
 221                 return p + 1;
 222         }
 223
 224         if ((p = strchr_m(path, '\\'))) {
 225                 *p = '\0';
 226                 return p + 1;
 227         }
 228
 229         /* No separator. */
 230         return NULL;
 231 }
 232
 233 /*
 234   parse a //server/share type UNC name
 235 */
 236 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 237                       char **hostname, char **sharename)
 238 {
 239         char *p;
 240
 241         if (strncmp(unc_name, "\\\\", 2) &&
 242             strncmp(unc_name, "//", 2)) {
 243                 return false;
 244         }
 245
 246         *hostname = *sharename = NULL;
 247
 248         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 249         p = terminate_path_at_separator(*hostname);
 250
 251         if (p != NULL && *p) {
 252                 *sharename = talloc_strdup(mem_ctx, p);
 253                 terminate_path_at_separator(*sharename);
 254         }
 255
 256         if (*hostname && *sharename) {
 257                 return true;
 258         }
 259
 260         talloc_free(*hostname);
 261         talloc_free(*sharename);
 262         *hostname = *sharename = NULL;
 263         return false;
 264 }
 265
 266
 267