source/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/auth/libcli_auth.h"
  27 #include "libcli/smb_composite/smb_composite.h"
  28 #include "param/param.h"
  29
  30 /*
  31   wrapper around smbcli_sock_connect()
  32 */
  33 bool smbcli_socket_connect(struct smbcli_state *cli, const char *server,
  34                            struct resolve_context *resolve_ctx,
  35                            int max_xmit, int max_mux)
  36 {
  37         struct smbcli_socket *sock;
  38
  39         sock = smbcli_sock_connect_byname(server, 0, NULL, resolve_ctx,
  40                                           NULL);
  41
  42         if (sock == NULL) return false;
  43
  44         cli->transport = smbcli_transport_init(sock, cli, true, max_xmit,
  45                                                max_mux);
  46         if (!cli->transport) {
  47                 return false;
  48         }
  49
  50         return true;
  51 }
  52
  53 /* wrapper around smbcli_transport_connect() */
  54 bool smbcli_transport_establish(struct smbcli_state *cli,
  55                                 struct nbt_name *calling,
  56                                 struct nbt_name *called)
  57 {
  58         return smbcli_transport_connect(cli->transport, calling, called);
  59 }
  60
  61 /* wrapper around smb_raw_negotiate() */
  62 NTSTATUS smbcli_negprot(struct smbcli_state *cli, bool unicode, int maxprotocol)
  63 {
  64         return smb_raw_negotiate(cli->transport, unicode, maxprotocol);
  65 }
  66
  67 /* wrapper around smb_raw_sesssetup() */
  68 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  69                               struct cli_credentials *credentials)
  70 {
  71         struct smb_composite_sesssetup setup;
  72         NTSTATUS status;
  73
  74         cli->session = smbcli_session_init(cli->transport, cli, true);
  75         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  76
  77         setup.in.sesskey = cli->transport->negotiate.sesskey;
  78         setup.in.capabilities = cli->transport->negotiate.capabilities;
  79         setup.in.credentials = credentials;
  80         setup.in.workgroup = lp_workgroup(global_loadparm);
  81
  82         status = smb_composite_sesssetup(cli->session, &setup);
  83
  84         cli->session->vuid = setup.out.vuid;
  85
  86         return status;
  87 }
  88
  89 /* wrapper around smb_raw_tcon() */
  90 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
  91                       const char *devtype, const char *password)
  92 {
  93         union smb_tcon tcon;
  94         TALLOC_CTX *mem_ctx;
  95         NTSTATUS status;
  96
  97         cli->tree = smbcli_tree_init(cli->session, cli, true);
  98         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
  99
 100         mem_ctx = talloc_init("tcon");
 101         if (!mem_ctx) {
 102                 return NT_STATUS_NO_MEMORY;
 103         }
 104
 105         /* setup a tree connect */
 106         tcon.generic.level = RAW_TCON_TCONX;
 107         tcon.tconx.in.flags = 0;
 108         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 109                 tcon.tconx.in.password = data_blob(NULL, 0);
 110         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 111                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 112                 if (cli->transport->negotiate.secblob.length < 8) {
 113                         return NT_STATUS_INVALID_PARAMETER;
 114                 }
 115                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 116         } else {
 117                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 118         }
 119         tcon.tconx.in.path = sharename;
 120         tcon.tconx.in.device = devtype;
 121
 122         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 123
 124         cli->tree->tid = tcon.tconx.out.tid;
 125
 126         talloc_free(mem_ctx);
 127
 128         return status;
 129 }
 130
 131
 132 /*
 133   easy way to get to a fully connected smbcli_state in one call
 134 */
 135 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 136                                 struct smbcli_state **ret_cli,
 137                                 const char *host,
 138                                 const char *sharename,
 139                                 const char *devtype,
 140                                 struct cli_credentials *credentials,
 141                                 struct event_context *ev)
 142 {
 143         struct smbcli_tree *tree;
 144         NTSTATUS status;
 145
 146         *ret_cli = NULL;
 147
 148         status = smbcli_tree_full_connection(parent_ctx,
 149                                              &tree, host, 0, sharename, devtype,
 150                                              credentials, ev);
 151         if (!NT_STATUS_IS_OK(status)) {
 152                 goto done;
 153         }
 154
 155         (*ret_cli) = smbcli_state_init(parent_ctx);
 156
 157         (*ret_cli)->tree = tree;
 158         (*ret_cli)->session = tree->session;
 159         (*ret_cli)->transport = tree->session->transport;
 160
 161         talloc_steal(*ret_cli, tree);
 162
 163 done:
 164         return status;
 165 }
 166
 167
 168 /*
 169   disconnect the tree
 170 */
 171 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 172 {
 173         return smb_tree_disconnect(cli->tree);
 174 }
 175
 176 /****************************************************************************
 177  Initialise a client state structure.
 178 ****************************************************************************/
 179 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 180 {
 181         return talloc_zero(mem_ctx, struct smbcli_state);
 182 }
 183
 184 /* Insert a NULL at the first separator of the given path and return a pointer
 185  * to the remainder of the string.
 186  */
 187 static char *
 188 terminate_path_at_separator(char * path)
 189 {
 190         char * p;
 191
 192         if (!path) {
 193                 return NULL;
 194         }
 195
 196         if ((p = strchr_m(path, '/'))) {
 197                 *p = '\0';
 198                 return p + 1;
 199         }
 200
 201         if ((p = strchr_m(path, '\\'))) {
 202                 *p = '\0';
 203                 return p + 1;
 204         }
 205
 206         /* No separator. */
 207         return NULL;
 208 }
 209
 210 /*
 211   parse a //server/share type UNC name
 212 */
 213 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 214                       char **hostname, char **sharename)
 215 {
 216         char *p;
 217
 218         *hostname = *sharename = NULL;
 219
 220         if (strncmp(unc_name, "\\\\", 2) &&
 221             strncmp(unc_name, "//", 2)) {
 222                 return false;
 223         }
 224
 225         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 226         p = terminate_path_at_separator(*hostname);
 227
 228         if (p != NULL && *p) {
 229                 *sharename = talloc_strdup(mem_ctx, p);
 230                 terminate_path_at_separator(*sharename);
 231         }
 232
 233         if (*hostname && *sharename) {
 234                 return true;
 235         }
 236
 237         talloc_free(*hostname);
 238         talloc_free(*sharename);
 239         *hostname = *sharename = NULL;
 240         return false;
 241 }
 242
 243
 244