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                            const char **ports,
  35                            struct resolve_context *resolve_ctx,
  36                            struct smbcli_options *options)
  37 {
  38         struct smbcli_socket *sock;
  39
  40         sock = smbcli_sock_connect_byname(server, ports, NULL, resolve_ctx,
  41                                           NULL);
  42
  43         if (sock == NULL) return false;
  44
  45         cli->transport = smbcli_transport_init(sock, cli, true, options);
  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                               const char *workgroup)
  71 {
  72         struct smb_composite_sesssetup setup;
  73         NTSTATUS status;
  74
  75         cli->session = smbcli_session_init(cli->transport, cli, true);
  76         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  77
  78         setup.in.sesskey = cli->transport->negotiate.sesskey;
  79         setup.in.capabilities = cli->transport->negotiate.capabilities;
  80         setup.in.credentials = credentials;
  81         setup.in.workgroup = workgroup;
  82
  83         status = smb_composite_sesssetup(cli->session, &setup);
  84
  85         cli->session->vuid = setup.out.vuid;
  86
  87         return status;
  88 }
  89
  90 /* wrapper around smb_raw_tcon() */
  91 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
  92                       const char *devtype, const char *password)
  93 {
  94         union smb_tcon tcon;
  95         TALLOC_CTX *mem_ctx;
  96         NTSTATUS status;
  97
  98         cli->tree = smbcli_tree_init(cli->session, cli, true);
  99         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 100
 101         mem_ctx = talloc_init("tcon");
 102         if (!mem_ctx) {
 103                 return NT_STATUS_NO_MEMORY;
 104         }
 105
 106         /* setup a tree connect */
 107         tcon.generic.level = RAW_TCON_TCONX;
 108         tcon.tconx.in.flags = 0;
 109         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 110                 tcon.tconx.in.password = data_blob(NULL, 0);
 111         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 112                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 113                 if (cli->transport->negotiate.secblob.length < 8) {
 114                         return NT_STATUS_INVALID_PARAMETER;
 115                 }
 116                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 117         } else {
 118                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 119         }
 120         tcon.tconx.in.path = sharename;
 121         tcon.tconx.in.device = devtype;
 122
 123         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 124
 125         cli->tree->tid = tcon.tconx.out.tid;
 126
 127         talloc_free(mem_ctx);
 128
 129         return status;
 130 }
 131
 132
 133 /*
 134   easy way to get to a fully connected smbcli_state in one call
 135 */
 136 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 137                                 struct smbcli_state **ret_cli,
 138                                 const char *host,
 139                                 const char **ports,
 140                                 const char *sharename,
 141                                 const char *devtype,
 142                                 struct cli_credentials *credentials,
 143                                 struct resolve_context *resolve_ctx,
 144                                 struct event_context *ev,
 145                                 struct smbcli_options *options)
 146 {
 147         struct smbcli_tree *tree;
 148         NTSTATUS status;
 149
 150         *ret_cli = NULL;
 151
 152         status = smbcli_tree_full_connection(parent_ctx,
 153                                              &tree, host, ports,
 154                                              sharename, devtype,
 155                                              credentials, resolve_ctx, ev,
 156                                              options);
 157         if (!NT_STATUS_IS_OK(status)) {
 158                 goto done;
 159         }
 160
 161         (*ret_cli) = smbcli_state_init(parent_ctx);
 162
 163         (*ret_cli)->tree = tree;
 164         (*ret_cli)->session = tree->session;
 165         (*ret_cli)->transport = tree->session->transport;
 166
 167         talloc_steal(*ret_cli, tree);
 168
 169 done:
 170         return status;
 171 }
 172
 173
 174 /*
 175   disconnect the tree
 176 */
 177 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 178 {
 179         return smb_tree_disconnect(cli->tree);
 180 }
 181
 182 /****************************************************************************
 183  Initialise a client state structure.
 184 ****************************************************************************/
 185 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 186 {
 187         return talloc_zero(mem_ctx, struct smbcli_state);
 188 }
 189
 190 /* Insert a NULL at the first separator of the given path and return a pointer
 191  * to the remainder of the string.
 192  */
 193 static char *
 194 terminate_path_at_separator(char * path)
 195 {
 196         char * p;
 197
 198         if (!path) {
 199                 return NULL;
 200         }
 201
 202         if ((p = strchr_m(path, '/'))) {
 203                 *p = '\0';
 204                 return p + 1;
 205         }
 206
 207         if ((p = strchr_m(path, '\\'))) {
 208                 *p = '\0';
 209                 return p + 1;
 210         }
 211
 212         /* No separator. */
 213         return NULL;
 214 }
 215
 216 /*
 217   parse a //server/share type UNC name
 218 */
 219 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 220                       char **hostname, char **sharename)
 221 {
 222         char *p;
 223
 224         *hostname = *sharename = NULL;
 225
 226         if (strncmp(unc_name, "\\\\", 2) &&
 227             strncmp(unc_name, "//", 2)) {
 228                 return false;
 229         }
 230
 231         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 232         p = terminate_path_at_separator(*hostname);
 233
 234         if (p != NULL && *p) {
 235                 *sharename = talloc_strdup(mem_ctx, p);
 236                 terminate_path_at_separator(*sharename);
 237         }
 238
 239         if (*hostname && *sharename) {
 240                 return true;
 241         }
 242
 243         talloc_free(*hostname);
 244         talloc_free(*sharename);
 245         *hostname = *sharename = NULL;
 246         return false;
 247 }
 248
 249
 250