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