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 #include "param/param.h"
  30
  31 /*
  32   wrapper around smbcli_sock_connect()
  33 */
  34 bool smbcli_socket_connect(struct smbcli_state *cli, const char *server,
  35                            const char **ports,
  36                            struct resolve_context *resolve_ctx,
  37                            struct smbcli_options *options)
  38 {
  39         struct smbcli_socket *sock;
  40
  41         sock = smbcli_sock_connect_byname(server, ports, NULL, resolve_ctx,
  42                                           NULL);
  43
  44         if (sock == NULL) return false;
  45
  46         cli->transport = smbcli_transport_init(sock, cli, true, options);
  47         if (!cli->transport) {
  48                 return false;
  49         }
  50
  51         return true;
  52 }
  53
  54 /* wrapper around smbcli_transport_connect() */
  55 bool smbcli_transport_establish(struct smbcli_state *cli,
  56                                 struct nbt_name *calling,
  57                                 struct nbt_name *called)
  58 {
  59         return smbcli_transport_connect(cli->transport, calling, called);
  60 }
  61
  62 /* wrapper around smb_raw_negotiate() */
  63 NTSTATUS smbcli_negprot(struct smbcli_state *cli, bool unicode, int maxprotocol)
  64 {
  65         return smb_raw_negotiate(cli->transport, unicode, maxprotocol);
  66 }
  67
  68 /* wrapper around smb_raw_sesssetup() */
  69 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  70                               struct cli_credentials *credentials,
  71                               const char *workgroup)
  72 {
  73         struct smb_composite_sesssetup setup;
  74         NTSTATUS status;
  75
  76         cli->session = smbcli_session_init(cli->transport, cli, true);
  77         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  78
  79         setup.in.sesskey = cli->transport->negotiate.sesskey;
  80         setup.in.capabilities = cli->transport->negotiate.capabilities;
  81         setup.in.credentials = credentials;
  82         setup.in.workgroup = workgroup;
  83
  84         status = smb_composite_sesssetup(cli->session, &setup);
  85
  86         cli->session->vuid = setup.out.vuid;
  87
  88         return status;
  89 }
  90
  91 /* wrapper around smb_raw_tcon() */
  92 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
  93                       const char *devtype, const char *password)
  94 {
  95         union smb_tcon tcon;
  96         TALLOC_CTX *mem_ctx;
  97         NTSTATUS status;
  98
  99         cli->tree = smbcli_tree_init(cli->session, cli, true);
 100         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 101
 102         mem_ctx = talloc_init("tcon");
 103         if (!mem_ctx) {
 104                 return NT_STATUS_NO_MEMORY;
 105         }
 106
 107         /* setup a tree connect */
 108         tcon.generic.level = RAW_TCON_TCONX;
 109         tcon.tconx.in.flags = 0;
 110         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 111                 tcon.tconx.in.password = data_blob(NULL, 0);
 112         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 113                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 114                 if (cli->transport->negotiate.secblob.length < 8) {
 115                         return NT_STATUS_INVALID_PARAMETER;
 116                 }
 117                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 118         } else {
 119                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 120         }
 121         tcon.tconx.in.path = sharename;
 122         tcon.tconx.in.device = devtype;
 123
 124         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 125
 126         cli->tree->tid = tcon.tconx.out.tid;
 127
 128         talloc_free(mem_ctx);
 129
 130         return status;
 131 }
 132
 133
 134 /*
 135   easy way to get to a fully connected smbcli_state in one call
 136 */
 137 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 138                                 struct smbcli_state **ret_cli,
 139                                 const char *host,
 140                                 const char **ports,
 141                                 const char *sharename,
 142                                 const char *devtype,
 143                                 struct cli_credentials *credentials,
 144                                 struct resolve_context *resolve_ctx,
 145                                 struct event_context *ev,
 146                                 struct smbcli_options *options)
 147 {
 148         struct smbcli_tree *tree;
 149         NTSTATUS status;
 150
 151         *ret_cli = NULL;
 152
 153         status = smbcli_tree_full_connection(parent_ctx,
 154                                              &tree, host, ports,
 155                                              sharename, devtype,
 156                                              credentials, resolve_ctx, ev,
 157                                              options);
 158         if (!NT_STATUS_IS_OK(status)) {
 159                 goto done;
 160         }
 161
 162         (*ret_cli) = smbcli_state_init(parent_ctx);
 163
 164         (*ret_cli)->tree = tree;
 165         (*ret_cli)->session = tree->session;
 166         (*ret_cli)->transport = tree->session->transport;
 167
 168         talloc_steal(*ret_cli, tree);
 169
 170 done:
 171         return status;
 172 }
 173
 174
 175 /*
 176   disconnect the tree
 177 */
 178 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 179 {
 180         return smb_tree_disconnect(cli->tree);
 181 }
 182
 183 /****************************************************************************
 184  Initialise a client state structure.
 185 ****************************************************************************/
 186 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 187 {
 188         return talloc_zero(mem_ctx, struct smbcli_state);
 189 }
 190
 191 /* Insert a NULL at the first separator of the given path and return a pointer
 192  * to the remainder of the string.
 193  */
 194 static char *
 195 terminate_path_at_separator(char * path)
 196 {
 197         char * p;
 198
 199         if (!path) {
 200                 return NULL;
 201         }
 202
 203         if ((p = strchr_m(path, '/'))) {
 204                 *p = '\0';
 205                 return p + 1;
 206         }
 207
 208         if ((p = strchr_m(path, '\\'))) {
 209                 *p = '\0';
 210                 return p + 1;
 211         }
 212
 213         /* No separator. */
 214         return NULL;
 215 }
 216
 217 /*
 218   parse a //server/share type UNC name
 219 */
 220 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 221                       char **hostname, char **sharename)
 222 {
 223         char *p;
 224
 225         *hostname = *sharename = NULL;
 226
 227         if (strncmp(unc_name, "\\\\", 2) &&
 228             strncmp(unc_name, "//", 2)) {
 229                 return false;
 230         }
 231
 232         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 233         p = terminate_path_at_separator(*hostname);
 234
 235         if (p != NULL && *p) {
 236                 *sharename = talloc_strdup(mem_ctx, p);
 237                 terminate_path_at_separator(*sharename);
 238         }
 239
 240         if (*hostname && *sharename) {
 241                 return true;
 242         }
 243
 244         talloc_free(*hostname);
 245         talloc_free(*sharename);
 246         *hostname = *sharename = NULL;
 247         return false;
 248 }
 249
 250
 251