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
  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 event_context *ev_ctx,
  36                            struct resolve_context *resolve_ctx,
  37                            struct smbcli_options *options,
  38                            struct smb_iconv_convenience *iconv_convenience)
  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                                                                                    iconv_convenience);
  49         if (!cli->transport) {
  50                 return false;
  51         }
  52
  53         return true;
  54 }
  55
  56 /* wrapper around smbcli_transport_connect() */
  57 bool smbcli_transport_establish(struct smbcli_state *cli,
  58                                 struct nbt_name *calling,
  59                                 struct nbt_name *called)
  60 {
  61         return smbcli_transport_connect(cli->transport, calling, called);
  62 }
  63
  64 /* wrapper around smb_raw_negotiate() */
  65 NTSTATUS smbcli_negprot(struct smbcli_state *cli, bool unicode, int maxprotocol)
  66 {
  67         return smb_raw_negotiate(cli->transport, unicode, maxprotocol);
  68 }
  69
  70 /* wrapper around smb_raw_sesssetup() */
  71 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  72                               struct cli_credentials *credentials,
  73                               const char *workgroup,
  74                               struct smbcli_session_options options)
  75 {
  76         struct smb_composite_sesssetup setup;
  77         NTSTATUS status;
  78
  79         cli->session = smbcli_session_init(cli->transport, cli, true,
  80                                            options);
  81         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  82
  83         setup.in.sesskey = cli->transport->negotiate.sesskey;
  84         setup.in.capabilities = cli->transport->negotiate.capabilities;
  85         setup.in.credentials = credentials;
  86         setup.in.workgroup = workgroup;
  87
  88         status = smb_composite_sesssetup(cli->session, &setup);
  89
  90         cli->session->vuid = setup.out.vuid;
  91
  92         return status;
  93 }
  94
  95 /* wrapper around smb_raw_tcon() */
  96 NTSTATUS smbcli_tconX(struct smbcli_state *cli, const char *sharename,
  97                       const char *devtype, const char *password)
  98 {
  99         union smb_tcon tcon;
 100         TALLOC_CTX *mem_ctx;
 101         NTSTATUS status;
 102
 103         cli->tree = smbcli_tree_init(cli->session, cli, true);
 104         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 105
 106         mem_ctx = talloc_init("tcon");
 107         if (!mem_ctx) {
 108                 return NT_STATUS_NO_MEMORY;
 109         }
 110
 111         /* setup a tree connect */
 112         tcon.generic.level = RAW_TCON_TCONX;
 113         tcon.tconx.in.flags = 0;
 114         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 115                 tcon.tconx.in.password = data_blob(NULL, 0);
 116         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 117                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 118                 if (cli->transport->negotiate.secblob.length < 8) {
 119                         return NT_STATUS_INVALID_PARAMETER;
 120                 }
 121                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 122         } else {
 123                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 124         }
 125         tcon.tconx.in.path = sharename;
 126         tcon.tconx.in.device = devtype;
 127
 128         status = smb_raw_tcon(cli->tree, mem_ctx, &tcon);
 129
 130         cli->tree->tid = tcon.tconx.out.tid;
 131
 132         talloc_free(mem_ctx);
 133
 134         return status;
 135 }
 136
 137
 138 /*
 139   easy way to get to a fully connected smbcli_state in one call
 140 */
 141 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 142                                 struct smbcli_state **ret_cli,
 143                                 const char *host,
 144                                 const char **ports,
 145                                 const char *sharename,
 146                                 const char *devtype,
 147                                 struct cli_credentials *credentials,
 148                                 struct resolve_context *resolve_ctx,
 149                                 struct event_context *ev,
 150                                 struct smbcli_options *options,
 151                                 struct smbcli_session_options *session_options,
 152                                 struct smb_iconv_convenience *iconv_convenience)
 153 {
 154         struct smbcli_tree *tree;
 155         NTSTATUS status;
 156
 157         *ret_cli = NULL;
 158
 159         status = smbcli_tree_full_connection(parent_ctx,
 160                                              &tree, host, ports,
 161                                              sharename, devtype,
 162                                              credentials, resolve_ctx, ev,
 163                                              options,
 164                                              session_options,
 165                                                  iconv_convenience);
 166         if (!NT_STATUS_IS_OK(status)) {
 167                 goto done;
 168         }
 169
 170         (*ret_cli) = smbcli_state_init(parent_ctx);
 171
 172         (*ret_cli)->tree = tree;
 173         (*ret_cli)->session = tree->session;
 174         (*ret_cli)->transport = tree->session->transport;
 175
 176         talloc_steal(*ret_cli, tree);
 177
 178 done:
 179         return status;
 180 }
 181
 182
 183 /*
 184   disconnect the tree
 185 */
 186 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 187 {
 188         return smb_tree_disconnect(cli->tree);
 189 }
 190
 191 /****************************************************************************
 192  Initialise a client state structure.
 193 ****************************************************************************/
 194 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 195 {
 196         return talloc_zero(mem_ctx, struct smbcli_state);
 197 }
 198
 199 /* Insert a NULL at the first separator of the given path and return a pointer
 200  * to the remainder of the string.
 201  */
 202 static char *
 203 terminate_path_at_separator(char * path)
 204 {
 205         char * p;
 206
 207         if (!path) {
 208                 return NULL;
 209         }
 210
 211         if ((p = strchr_m(path, '/'))) {
 212                 *p = '\0';
 213                 return p + 1;
 214         }
 215
 216         if ((p = strchr_m(path, '\\'))) {
 217                 *p = '\0';
 218                 return p + 1;
 219         }
 220
 221         /* No separator. */
 222         return NULL;
 223 }
 224
 225 /*
 226   parse a //server/share type UNC name
 227 */
 228 bool smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 229                       char **hostname, char **sharename)
 230 {
 231         char *p;
 232
 233         *hostname = *sharename = NULL;
 234
 235         if (strncmp(unc_name, "\\\\", 2) &&
 236             strncmp(unc_name, "//", 2)) {
 237                 return false;
 238         }
 239
 240         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 241         p = terminate_path_at_separator(*hostname);
 242
 243         if (p != NULL && *p) {
 244                 *sharename = talloc_strdup(mem_ctx, p);
 245                 terminate_path_at_separator(*sharename);
 246         }
 247
 248         if (*hostname && *sharename) {
 249                 return true;
 250         }
 251
 252         talloc_free(*hostname);
 253         talloc_free(*sharename);
 254         *hostname = *sharename = NULL;
 255         return false;
 256 }
 257
 258
 259