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