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
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "system/filesys.h"
  25 #include "libcli/raw/libcliraw.h"
  26 #include "libcli/composite/composite.h"
  27
  28 /*
  29   wrapper around smbcli_sock_connect()
  30 */
  31 BOOL smbcli_socket_connect(struct smbcli_state *cli, const char *server)
  32 {
  33         struct smbcli_socket *sock;
  34
  35         sock = smbcli_sock_init(cli);
  36         if (!sock) return False;
  37
  38         if (!smbcli_sock_connect_byname(sock, server, 0)) {
  39                 talloc_free(sock);
  40                 return False;
  41         }
  42
  43         cli->transport = smbcli_transport_init(sock);
  44         talloc_free(sock);
  45         if (!cli->transport) {
  46                 return False;
  47         }
  48
  49         return True;
  50 }
  51
  52 /* wrapper around smbcli_transport_connect() */
  53 BOOL smbcli_transport_establish(struct smbcli_state *cli,
  54                                 struct nbt_name *calling,
  55                                 struct nbt_name *called)
  56 {
  57         return smbcli_transport_connect(cli->transport, calling, called);
  58 }
  59
  60 /* wrapper around smb_raw_negotiate() */
  61 NTSTATUS smbcli_negprot(struct smbcli_state *cli)
  62 {
  63         return smb_raw_negotiate(cli->transport, lp_maxprotocol());
  64 }
  65
  66 /* wrapper around smb_raw_session_setup() */
  67 NTSTATUS smbcli_session_setup(struct smbcli_state *cli,
  68                               const char *user,
  69                               const char *password,
  70                               const char *domain)
  71 {
  72         struct smb_composite_sesssetup setup;
  73         NTSTATUS status;
  74         TALLOC_CTX *mem_ctx;
  75
  76         cli->session = smbcli_session_init(cli->transport);
  77         if (!cli->session) return NT_STATUS_UNSUCCESSFUL;
  78         talloc_free(cli->transport);
  79
  80         mem_ctx = talloc_init("smbcli_session_setup");
  81         if (!mem_ctx) return NT_STATUS_NO_MEMORY;
  82
  83         setup.in.sesskey = cli->transport->negotiate.sesskey;
  84         setup.in.capabilities = cli->transport->negotiate.capabilities;
  85         if (!user || !user[0]) {
  86                 setup.in.password = NULL;
  87                 setup.in.user = "";
  88                 setup.in.domain = "";
  89                 setup.in.capabilities &= ~CAP_EXTENDED_SECURITY;
  90         } else {
  91                 if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
  92                         setup.in.password = password;
  93                 } else {
  94                         setup.in.password = NULL;
  95                 }
  96                 setup.in.user = user;
  97                 setup.in.domain = domain;
  98         }
  99
 100         status = smb_composite_sesssetup(cli->session, &setup);
 101
 102         cli->session->vuid = setup.out.vuid;
 103
 104         talloc_free(mem_ctx);
 105
 106         return status;
 107 }
 108
 109 /* wrapper around smb_tree_connect() */
 110 NTSTATUS smbcli_send_tconX(struct smbcli_state *cli, const char *sharename,
 111                            const char *devtype, const char *password)
 112 {
 113         union smb_tcon tcon;
 114         TALLOC_CTX *mem_ctx;
 115         NTSTATUS status;
 116
 117         cli->tree = smbcli_tree_init(cli->session);
 118         talloc_free(cli->session);
 119         if (!cli->tree) return NT_STATUS_UNSUCCESSFUL;
 120
 121         mem_ctx = talloc_init("tcon");
 122         if (!mem_ctx) {
 123                 return NT_STATUS_NO_MEMORY;
 124         }
 125
 126         /* setup a tree connect */
 127         tcon.generic.level = RAW_TCON_TCONX;
 128         tcon.tconx.in.flags = 0;
 129         if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL) {
 130                 tcon.tconx.in.password = data_blob(NULL, 0);
 131         } else if (cli->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 132                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, NULL, 24);
 133                 if (cli->transport->negotiate.secblob.length < 8) {
 134                         return NT_STATUS_INVALID_PARAMETER;
 135                 }
 136                 SMBencrypt(password, cli->transport->negotiate.secblob.data, tcon.tconx.in.password.data);
 137         } else {
 138                 tcon.tconx.in.password = data_blob_talloc(mem_ctx, password, strlen(password)+1);
 139         }
 140         tcon.tconx.in.path = sharename;
 141         tcon.tconx.in.device = devtype;
 142
 143         status = smb_tree_connect(cli->tree, mem_ctx, &tcon);
 144
 145         cli->tree->tid = tcon.tconx.out.tid;
 146
 147         talloc_free(mem_ctx);
 148
 149         return status;
 150 }
 151
 152
 153 /*
 154   easy way to get to a fully connected smbcli_state in one call
 155 */
 156 NTSTATUS smbcli_full_connection(TALLOC_CTX *parent_ctx,
 157                                 struct smbcli_state **ret_cli,
 158                                 const char *myname,
 159                                 const char *host,
 160                                 const char *sharename,
 161                                 const char *devtype,
 162                                 const char *username,
 163                                 const char *domain,
 164                                 const char *password)
 165 {
 166         struct smbcli_tree *tree;
 167         NTSTATUS status;
 168         char *p;
 169         TALLOC_CTX *mem_ctx;
 170
 171         mem_ctx = talloc_init("smbcli_full_connection");
 172
 173         *ret_cli = NULL;
 174
 175         /* if the username is of the form DOMAIN\username then split out the domain */
 176         p = strpbrk(username, "\\/");
 177         if (p) {
 178                 domain = talloc_strndup(mem_ctx, username, PTR_DIFF(p, username));
 179                 username = talloc_strdup(mem_ctx, p+1);
 180         }
 181
 182         status = smbcli_tree_full_connection(parent_ctx,
 183                                              &tree, myname, host, 0, sharename, devtype,
 184                                              username, domain, password);
 185         if (!NT_STATUS_IS_OK(status)) {
 186                 goto done;
 187         }
 188
 189         (*ret_cli) = smbcli_state_init(parent_ctx);
 190
 191         (*ret_cli)->tree = tree;
 192         (*ret_cli)->session = tree->session;
 193         (*ret_cli)->transport = tree->session->transport;
 194         talloc_steal(*ret_cli, tree->session->transport->socket);
 195
 196 done:
 197         talloc_free(mem_ctx);
 198
 199         return status;
 200 }
 201
 202
 203 /*
 204   disconnect the tree
 205 */
 206 NTSTATUS smbcli_tdis(struct smbcli_state *cli)
 207 {
 208         return smb_tree_disconnect(cli->tree);
 209 }
 210
 211 /****************************************************************************
 212  Initialise a client state structure.
 213 ****************************************************************************/
 214 struct smbcli_state *smbcli_state_init(TALLOC_CTX *mem_ctx)
 215 {
 216         struct smbcli_state *cli;
 217
 218         cli = talloc_zero_p(mem_ctx, struct smbcli_state);
 219         if (cli) {
 220                 ZERO_STRUCTP(cli);
 221         }
 222
 223         return cli;
 224 }
 225
 226 /****************************************************************************
 227  Shutdown a client structure.
 228 ****************************************************************************/
 229 void smbcli_shutdown(struct smbcli_state *cli)
 230 {
 231         talloc_free(cli);
 232 }
 233
 234 /*
 235   parse a //server/share type UNC name
 236 */
 237 BOOL smbcli_parse_unc(const char *unc_name, TALLOC_CTX *mem_ctx,
 238                       const char **hostname, const char **sharename)
 239 {
 240         char *p;
 241
 242         if (strncmp(unc_name, "\\\\", 2) &&
 243             strncmp(unc_name, "//", 2)) {
 244                 return False;
 245         }
 246
 247         *hostname = talloc_strdup(mem_ctx, &unc_name[2]);
 248         p = strchr_m(&(*hostname)[2],'/');
 249         if (!p) {
 250                 p = strchr_m(&(*hostname)[2],'\\');
 251                 if (!p) return False;
 252         }
 253         *p = 0;
 254         *sharename = talloc_strdup(mem_ctx, p+1);
 255
 256         return True;
 257 }
 258
 259
 260