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.h"
  24 #include "client.h"
  25 #include "libsmb/proto.h"
  26 #include "clifuse.h"
  27
  28 static struct cli_state *connect_one(struct user_auth_info *auth_info,
  29                                      const char *server, const char *share)
  30 {
  31         struct cli_state *c = NULL;
  32         NTSTATUS nt_status;
  33         uint32_t flags = 0;
  34
  35         if (get_cmdline_auth_info_use_kerberos(auth_info)) {
  36                 flags |= CLI_FULL_CONNECTION_USE_KERBEROS |
  37                          CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
  38         }
  39
  40         if (get_cmdline_auth_info_use_machine_account(auth_info) &&
  41             !set_cmdline_auth_info_machine_account_creds(auth_info)) {
  42                 return NULL;
  43         }
  44
  45         set_cmdline_auth_info_getpass(auth_info);
  46
  47         nt_status = cli_full_connection(&c, lp_netbios_name(), server,
  48                                 NULL, 0,
  49                                 share, "?????",
  50                                 get_cmdline_auth_info_username(auth_info),
  51                                 lp_workgroup(),
  52                                 get_cmdline_auth_info_password(auth_info),
  53                                 flags,
  54                                 get_cmdline_auth_info_signing_state(auth_info));
  55         if (!NT_STATUS_IS_OK(nt_status)) {
  56                 DBG_ERR("cli_full_connection failed! (%s)\n",
  57                         nt_errstr(nt_status));
  58                 return NULL;
  59         }
  60
  61         if (get_cmdline_auth_info_smb_encrypt(auth_info)) {
  62                 nt_status = cli_cm_force_encryption(
  63                         c,
  64                         get_cmdline_auth_info_username(auth_info),
  65                         get_cmdline_auth_info_password(auth_info),
  66                         lp_workgroup(),
  67                         share);
  68                 if (!NT_STATUS_IS_OK(nt_status)) {
  69                         cli_shutdown(c);
  70                         c = NULL;
  71                 }
  72         }
  73
  74         return c;
  75 }
  76
  77 int main(int argc, char *argv[])
  78 {
  79         const char **argv_const = discard_const_p(const char *, argv);
  80         TALLOC_CTX *frame = talloc_stackframe();
  81         struct user_auth_info *auth_info;
  82         poptContext pc;
  83         int opt, ret;
  84         char *unc, *mountpoint, *server, *share;
  85         struct cli_state *cli;
  86
  87         struct poptOption long_options[] = {
  88                 POPT_AUTOHELP
  89                 POPT_COMMON_SAMBA
  90                 POPT_COMMON_CREDENTIALS
  91                 POPT_TABLEEND
  92         };
  93
  94         smb_init_locale();
  95         setup_logging(argv[0], DEBUG_STDERR);
  96         lp_set_cmdline("client min protocol", "SMB2");
  97         lp_set_cmdline("client max protocol", "SMB3_11");
  98
  99         auth_info = user_auth_info_init(frame);
 100         if (auth_info == NULL) {
 101                 exit(1);
 102         }
 103         popt_common_set_auth_info(auth_info);
 104
 105         lp_load_global(get_dyn_CONFIGFILE());
 106         load_interfaces();
 107
 108         pc = poptGetContext("smb2mount", argc, argv_const, long_options, 0);
 109         poptSetOtherOptionHelp(pc, "//server1/share1 mountpoint");
 110
 111         while ((opt = poptGetNextOpt(pc)) != -1) {
 112                 switch(opt) {
 113                     default:
 114                             fprintf(stderr, "Unknown Option: %c\n", opt);
 115                             exit(1);
 116                 }
 117         }
 118
 119         if (!poptPeekArg(pc)) {
 120                 poptPrintUsage(pc, stderr, 0);
 121                 return -1;
 122         }
 123         unc = talloc_strdup(frame, poptGetArg(pc));
 124         if (unc == NULL) {
 125                 return -1;
 126         }
 127         string_replace(unc,'/','\\');
 128
 129         if (!poptPeekArg(pc)) {
 130                 poptPrintUsage(pc, stderr, 0);
 131                 return -1;
 132         }
 133         mountpoint = talloc_strdup(frame, poptGetArg(pc));
 134         if (mountpoint == NULL) {
 135                 return -1;
 136         }
 137
 138         poptFreeContext(pc);
 139         popt_burn_cmdline_password(argc, argv);
 140
 141         server = talloc_strdup(frame, unc+2);
 142         if (!server) {
 143                 return -1;
 144         }
 145         share = strchr_m(server,'\\');
 146         if (!share) {
 147                 fprintf(stderr, "Invalid argument: %s\n", share);
 148                 return -1;
 149         }
 150
 151         *share = 0;
 152         share++;
 153
 154         cli = connect_one(auth_info, server, share);
 155         if (cli == NULL) {
 156                 return -1;
 157         }
 158
 159         ret = do_mount(cli, mountpoint);
 160         if (ret != 0) {
 161                 fprintf(stderr, "mount failed\n");
 162                 return -1;
 163         }
 164
 165         TALLOC_FREE(frame);
 166         return 0;
 167 }