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/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, struct resolve_context *resolve_ctx,
  35                            int max_xmit, int max_mux, bool use_spnego)
  36 {
  37         struct smbcli_socket *sock;
  38
  39         sock = smbcli_sock_connect_byname(server, ports, 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, use_spnego);
  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 {
 146         struct smbcli_tree *tree;
 147         NTSTATUS status;
 148
 149         *ret_cli = NULL;
 150
 151         status = smbcli_tree_full_connection(parent_ctx,
 152                                              &tree, host, ports,
 153                                              sharename, devtype,
 154                                              credentials, resolve_ctx, ev);
 155         if (!NT_STATUS_IS_OK(status)) {
 156                 goto done;
 157         }
 158
 159         (*ret_cli) = smbcli_state_init(parent_ctx);
 160
 161         (*ret_cli)->tree = tree;
 162         (*ret_cli)->session = tree->session;
 163         (*ret_cli)->transport = tree->session->transport;
 164
 165         talloc_steal(*ret_cli, tree);
 166
 167 done:
 168         return status;
 169 }
 170
 171
 172 /*
 173   disconnect the tree
 174 */
 175 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 176 {
 177         return smb_tree_disconnect(cli->tree);
 178 }
 179
 180 /****************************************************************************
 181  Initialise a client state structure.
 182 ****************************************************************************/
 183 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 184 {
 185         return talloc_zero(mem_ctx, struct smbcli_state);
 186 }
 187
 188 /* Insert a NULL at the first separator of the given path and return a pointer
 189  * to the remainder of the string.
 190  */
 191 static char *
 192 terminate_path_at_separator(char * path)
 193 {
 194         char * p;
 195
 196         if (!path) {
 197                 return NULL;
 198         }
 199
 200         if ((p = strchr_m(path, '/'))) {
 201                 *p = '\0';
 202                 return p + 1;
 203         }
 204
 205         if ((p = strchr_m(path, '\\'))) {
 206                 *p = '\0';
 207                 return p + 1;
 208         }
 209
 210         /* No separator. */
 211         return NULL;
 212 }
 213
 214 /*
 215   parse a //server/share type UNC name
 216 */
 217 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 218                       char **hostname, char **sharename)
 219 {
 220         char *p;
 221
 222         *hostname = *sharename = NULL;
 223
 224         if (strncmp(unc_name, "\\\\", 2) &&
 225             strncmp(unc_name, "//", 2)) {
 226                 return false;
 227         }
 228
 229         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 230         p = terminate_path_at_separator(*hostname);
 231
 232         if (p != NULL && *p) {
 233                 *sharename = talloc_strdup(mem_ctx, p);
 234                 terminate_path_at_separator(*sharename);
 235         }
 236
 237         if (*hostname && *sharename) {
 238                 return true;
 239         }
 240
 241         talloc_free(*hostname);
 242         talloc_free(*sharename);
 243         *hostname = *sharename = NULL;
 244         return false;
 245 }
 246
 247
 248