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