examples/fuse/smb2mount.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * fusermount smb2 client
   4  *
   5  * Copyright (C) Volker Lendecke 2016
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "source3/include/includes.h"
  22 #include "popt.h"
  23 #include "popt_common_cmdline.h"
  24 #include "client.h"
  25 #include "libsmb/proto.h"
  26 #include "clifuse.h"
  27
  28 static struct cli_state *connect_one(const struct user_auth_info *auth_info,
  29                                      const char *server, int port,
  30                                      const char *share)
  31 {
  32         struct cli_state *c = NULL;
  33         NTSTATUS nt_status;
  34         uint32_t flags = 0;
  35
  36         if (get_cmdline_auth_info_use_kerberos(auth_info)) {
  37                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
  38                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
  39         }
  40
  41         nt_status = cli_full_connection_creds(&c, lp_netbios_name(), server,
  42                                 NULL, port,
  43                                 share, "?????",
  44                                 get_cmdline_auth_info_creds(auth_info),
  45                                 flags,
  46                                 get_cmdline_auth_info_signing_state(auth_info));
  47         if (!NT_STATUS_IS_OK(nt_status)) {
  48                 DBG_ERR("cli_full_connection failed! (%s)\n",
  49                         nt_errstr(nt_status));
  50                 return NULL;
  51         }
  52
  53         if (get_cmdline_auth_info_smb_encrypt(auth_info)) {
  54                 nt_status = cli_cm_force_encryption_creds(
  55                         c,
  56                         get_cmdline_auth_info_creds(auth_info),
  57                         share);
  58                 if (!NT_STATUS_IS_OK(nt_status)) {
  59                         cli_shutdown(c);
  60                         c = NULL;
  61                 }
  62         }
  63
  64         return c;
  65 }
  66
  67 int main(int argc, char *argv[])
  68 {
  69         const char **argv_const = discard_const_p(const char *, argv);
  70         TALLOC_CTX *frame = talloc_stackframe();
  71         poptContext pc;
  72         int opt, ret;
  73         int port = 0;
  74         char *unc, *mountpoint, *server, *share;
  75         struct cli_state *cli;
  76
  77         struct poptOption long_options[] = {
  78                 POPT_AUTOHELP
  79                 POPT_COMMON_SAMBA
  80                 POPT_COMMON_CREDENTIALS
  81                 { "port", 'p', POPT_ARG_INT, &port, 'p', "Port to connect to",
  82                   "PORT" },
  83                 POPT_TABLEEND
  84         };
  85
  86         smb_init_locale();
  87         setup_logging(argv[0], DEBUG_STDERR);
  88         lp_set_cmdline("client min protocol", "SMB2");
  89         lp_set_cmdline("client max protocol", "SMB3_11");
  90
  91         lp_load_global(get_dyn_CONFIGFILE());
  92         load_interfaces();
  93
  94         pc = poptGetContext("smb2mount", argc, argv_const, long_options, 0);
  95         poptSetOtherOptionHelp(pc, "//server1/share1 mountpoint");
  96
  97         while ((opt = poptGetNextOpt(pc)) != -1) {
  98                 switch(opt) {
  99                     case 'p':
 100                             break;
 101                     default:
 102                             fprintf(stderr, "Unknown Option: %c\n", opt);
 103                             exit(1);
 104                 }
 105         }
 106
 107         if (!poptPeekArg(pc)) {
 108                 poptPrintUsage(pc, stderr, 0);
 109                 return -1;
 110         }
 111         unc = talloc_strdup(frame, poptGetArg(pc));
 112         if (unc == NULL) {
 113                 return -1;
 114         }
 115         string_replace(unc,'/','\\');
 116
 117         if (!poptPeekArg(pc)) {
 118                 poptPrintUsage(pc, stderr, 0);
 119                 return -1;
 120         }
 121         mountpoint = talloc_strdup(frame, poptGetArg(pc));
 122         if (mountpoint == NULL) {
 123                 return -1;
 124         }
 125
 126         poptFreeContext(pc);
 127         popt_burn_cmdline_password(argc, argv);
 128
 129         server = talloc_strdup(frame, unc+2);
 130         if (!server) {
 131                 return -1;
 132         }
 133         share = strchr_m(server,'\\');
 134         if (!share) {
 135                 fprintf(stderr, "Invalid argument: %s\n", share);
 136                 return -1;
 137         }
 138
 139         *share = 0;
 140         share++;
 141
 142         cli = connect_one(popt_get_cmdline_auth_info(), server, port, share);
 143         if (cli == NULL) {
 144                 return -1;
 145         }
 146
 147         ret = do_mount(cli, mountpoint);
 148         if (ret != 0) {
 149                 fprintf(stderr, "mount failed\n");
 150                 return -1;
 151         }
 152
 153         popt_free_cmdline_auth_info();
 154         TALLOC_FREE(frame);
 155         return 0;
 156 }