mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@437 3c298f89-4303-0410-b956-a3cf2f4a3e73
973 lines
25 KiB
C
973 lines
25 KiB
C
/*
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Mount helper utility for Linux CIFS VFS (virtual filesystem) client
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Copyright (C) 2003 Steve French (sfrench@us.ibm.com)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <sys/utsname.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <getopt.h>
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#include <errno.h>
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#include <netdb.h>
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#include <string.h>
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#include <mntent.h>
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#include <fcntl.h>
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#define MOUNT_CIFS_VERSION_MAJOR "1"
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#define MOUNT_CIFS_VERSION_MINOR "5"
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#ifndef MOUNT_CIFS_VENDOR_SUFFIX
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#define MOUNT_CIFS_VENDOR_SUFFIX ""
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#endif
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#ifndef MS_MOVE
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#define MS_MOVE 8192
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#endif
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char * thisprogram;
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int verboseflag = 0;
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static int got_password = 0;
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static int got_user = 0;
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static int got_domain = 0;
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static int got_ip = 0;
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static int got_unc = 0;
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static int got_uid = 0;
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static int got_gid = 0;
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static int free_share_name = 0;
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static char * user_name = NULL;
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char * mountpassword = NULL;
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/* BB finish BB
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cifs_umount
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open nofollow - avoid symlink exposure?
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get owner of dir see if matches self or if root
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call system(umount argv) etc.
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BB end finish BB */
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static void mount_cifs_usage(void)
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{
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printf("\nUsage: %s <remotetarget> <dir> -o <options>\n", thisprogram);
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printf("\nMount the remote target, specified as a UNC name,");
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printf(" to a local directory.\n\nOptions:\n");
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printf("\tuser=<arg>\n\tpass=<arg>\n\tdom=<arg>\n");
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printf("\nLess commonly used options:");
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printf("\n\tcredentials=<filename>,guest,perm,noperm,setuids,nosetuids,\n\trw,ro,sep=<char>,iocharset=<codepage>,suid,nosuid,exec,noexec");
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printf("\n\nOptions not needed for servers supporting CIFS Unix extensions (e.g. most Samba versions):");
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printf("\n\tuid=<uid>,gid=<gid>,dir_mode=<mode>,file_mode=<mode>");
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printf("\n\nRarely used options:");
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printf("\n\tport=<tcpport>,rsize=<size>,wsize=<size>,unc=<unc_name>,ip=<ip_address>,dev,nodev");
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printf("\n\nOptions are described in more detail in the manual page");
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printf("\n\tman 8 mount.cifs\n");
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printf("\nTo display the version number of the mount helper:");
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printf("\n\t%s -V\n",thisprogram);
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if(mountpassword) {
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memset(mountpassword,0,64);
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free(mountpassword);
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}
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exit(1);
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}
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/* caller frees username if necessary */
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static char * getusername(void) {
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char *username = NULL;
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struct passwd *password = getpwuid(getuid());
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if (password) {
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username = password->pw_name;
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}
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return username;
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}
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char * parse_cifs_url(char * unc_name)
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{
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printf("\nMounting cifs URL not implemented yet. Attempt to mount %s\n",unc_name);
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return NULL;
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}
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static int open_cred_file(char * file_name)
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{
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char * line_buf;
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char * temp_val;
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FILE * fs;
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int i, length;
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fs = fopen(file_name,"r");
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if(fs == NULL)
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return errno;
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line_buf = malloc(4096);
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if(line_buf == NULL)
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return -ENOMEM;
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while(fgets(line_buf,4096,fs)) {
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/* parse line from credential file */
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/* eat leading white space */
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for(i=0;i<4086;i++) {
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if((line_buf[i] != ' ') && (line_buf[i] != '\t'))
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break;
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/* if whitespace - skip past it */
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}
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if (strncasecmp("username",line_buf+i,8) == 0) {
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temp_val = strchr(line_buf + i,'=');
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if(temp_val) {
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/* go past equals sign */
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temp_val++;
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for(length = 0;length<4087;length++) {
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if(temp_val[length] == '\n')
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break;
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}
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if(length > 4086) {
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printf("mount.cifs failed due to malformed username in credentials file");
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memset(line_buf,0,4096);
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if(mountpassword) {
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memset(mountpassword,0,64);
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}
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exit(1);
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} else {
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got_user = 1;
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user_name = calloc(1 + length,1);
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/* BB adding free of user_name string before exit,
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not really necessary but would be cleaner */
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strncpy(user_name,temp_val, length);
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}
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}
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} else if (strncasecmp("password",line_buf+i,8) == 0) {
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temp_val = strchr(line_buf+i,'=');
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if(temp_val) {
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/* go past equals sign */
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temp_val++;
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for(length = 0;length<65;length++) {
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if(temp_val[length] == '\n')
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break;
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}
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if(length > 64) {
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printf("mount.cifs failed: password in credentials file too long\n");
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memset(line_buf,0, 4096);
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if(mountpassword) {
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memset(mountpassword,0,64);
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}
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exit(1);
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} else {
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if(mountpassword == NULL) {
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mountpassword = calloc(65,1);
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} else
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memset(mountpassword,0,64);
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if(mountpassword) {
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/* BB add handling for commas in password here */
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strncpy(mountpassword,temp_val,length);
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got_password = 1;
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}
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}
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}
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}
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}
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fclose(fs);
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if(line_buf) {
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memset(line_buf,0,4096);
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free(line_buf);
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}
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return 0;
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}
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static int get_password_from_file(int file_descript, char * filename)
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{
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int rc = 0;
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int i;
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char c;
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if(mountpassword == NULL)
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mountpassword = calloc(65,1);
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else
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memset(mountpassword, 0, 64);
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if(filename != NULL) {
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file_descript = open(filename, O_RDONLY);
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if(file_descript < 0) {
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printf("mount.cifs failed. %s attempting to open password file %s\n",
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strerror(errno),filename);
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exit(1);
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}
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}
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/* else file already open and fd provided */
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for(i=0;i<64;i++) {
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rc = read(file_descript,&c,1);
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if(rc < 0) {
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printf("mount.cifs failed. Error %s reading password file\n",strerror(errno));
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memset(mountpassword,0,64);
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if(filename != NULL)
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close(file_descript);
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exit(1);
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} else if(rc == 0) {
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if(mountpassword[0] == 0) {
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if(verboseflag)
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printf("\nWarning: null password used since cifs password file empty");
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}
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break;
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} else /* read valid character */ {
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if((c == 0) || (c == '\n')) {
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break;
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} else
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mountpassword[i] = c;
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}
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}
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if((i == 64) && (verboseflag)) {
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printf("\nWarning: password longer than 64 characters specified in cifs password file");
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}
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got_password = 1;
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if(filename != NULL) {
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close(file_descript);
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}
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return rc;
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}
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static int parse_options(char * options, int * filesys_flags)
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{
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char * data;
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char * percent_char = NULL;
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char * value = NULL;
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char * next_keyword = NULL;
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int rc = 0;
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if (!options)
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return 1;
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else
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data = options;
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if(verboseflag)
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printf("\n parsing options: %s", options);
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/* while ((data = strsep(&options, ",")) != NULL) { */
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while(data != NULL) {
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/* check if ends with trailing comma */
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if(*data == 0)
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break;
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/* format is keyword=value,keyword2=value2,keyword3=value3 etc.) */
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/* data = next keyword */
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/* value = next value ie stuff after equal sign */
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next_keyword = strchr(data,',');
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/* temporarily null terminate end of keyword=value pair */
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if(next_keyword)
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*next_keyword = 0;
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/* if (!*data)
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continue; */
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/* temporarily null terminate keyword to make keyword and value distinct */
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if ((value = strchr(data, '=')) != NULL) {
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*value = '\0';
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value++;
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}
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if (strncmp(data, "user", 4) == 0) {
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if (!value || !*value) {
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if(data[4] == '\0') {
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if(verboseflag)
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printf("\nskipping empty user mount parameter\n");
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/* remove the parm since it would otherwise be confusing
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to the kernel code which would think it was a real username */
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data[0] = ',';
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data[1] = ',';
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data[2] = ',';
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data[3] = ',';
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/* BB remove it from mount line so as not to confuse kernel code */
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} else {
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printf("username specified with no parameter\n");
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return 1; /* needs_arg; */
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}
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} else {
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if (strnlen(value, 260) < 260) {
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got_user=1;
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percent_char = strchr(value,'%');
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if(percent_char) {
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*percent_char = ',';
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if(mountpassword == NULL)
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mountpassword = calloc(65,1);
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if(mountpassword) {
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if(got_password)
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printf("\nmount.cifs warning - password specified twice\n");
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got_password = 1;
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percent_char++;
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strncpy(mountpassword, percent_char,64);
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/* remove password from username */
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while(*percent_char != 0) {
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*percent_char = ',';
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percent_char++;
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}
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}
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}
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} else {
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printf("username too long\n");
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return 1;
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}
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}
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} else if (strncmp(data, "pass", 4) == 0) {
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if (!value || !*value) {
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if(got_password) {
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printf("\npassword specified twice, ignoring second\n");
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} else
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got_password = 1;
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} else if (strnlen(value, 17) < 17) {
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if(got_password)
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printf("\nmount.cifs warning - password specified twice\n");
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got_password = 1;
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} else {
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printf("password too long\n");
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return 1;
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}
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} else if (strncmp(data, "ip", 2) == 0) {
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if (!value || !*value) {
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printf("target ip address argument missing");
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} else if (strnlen(value, 35) < 35) {
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if(verboseflag)
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printf("ip address %s override specified\n",value);
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got_ip = 1;
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} else {
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printf("ip address too long\n");
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return 1;
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}
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} else if ((strncmp(data, "unc", 3) == 0)
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|| (strncmp(data, "target", 6) == 0)
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|| (strncmp(data, "path", 4) == 0)) {
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if (!value || !*value) {
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printf("invalid path to network resource\n");
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return 1; /* needs_arg; */
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} else if(strnlen(value,5) < 5) {
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printf("UNC name too short");
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}
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if (strnlen(value, 300) < 300) {
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got_unc = 1;
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if (strncmp(value, "//", 2) == 0) {
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if(got_unc)
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printf("unc name specified twice, ignoring second\n");
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else
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got_unc = 1;
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} else if (strncmp(value, "\\\\", 2) != 0) {
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printf("UNC Path does not begin with // or \\\\ \n");
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return 1;
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} else {
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if(got_unc)
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printf("unc name specified twice, ignoring second\n");
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else
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got_unc = 1;
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}
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} else {
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printf("CIFS: UNC name too long\n");
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return 1;
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}
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} else if ((strncmp(data, "domain", 3) == 0)
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|| (strncmp(data, "workgroup", 5) == 0)) {
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if (!value || !*value) {
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printf("CIFS: invalid domain name\n");
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return 1; /* needs_arg; */
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}
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if (strnlen(value, 65) < 65) {
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got_domain = 1;
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} else {
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printf("domain name too long\n");
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return 1;
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}
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} else if (strncmp(data, "cred", 4) == 0) {
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if (value && *value) {
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rc = open_cred_file(value);
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if(rc) {
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printf("error %d opening credential file %s\n",rc, value);
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return 1;
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}
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} else {
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printf("invalid credential file name specified\n");
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return 1;
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}
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} else if (strncmp(data, "uid", 3) == 0) {
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if (value && *value) {
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got_uid = 1;
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}
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} else if (strncmp(data, "gid", 3) == 0) {
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if (value && *value) {
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got_gid = 1;
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}
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/* fmask and dmask synonyms for people used to smbfs syntax */
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} else if (strcmp(data, "file_mode") == 0 || strcmp(data, "fmask")==0) {
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if (!value || !*value) {
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printf ("Option '%s' requires a numerical argument\n", data);
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return 1;
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}
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if (value[0] != '0') {
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printf ("WARNING: '%s' not expressed in octal.\n", data);
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}
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if (strcmp (data, "fmask") == 0) {
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printf ("WARNING: CIFS mount option 'fmask' is deprecated. Use 'file_mode' instead.\n");
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data = "file_mode"; /* BB fix this */
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}
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} else if (strcmp(data, "dir_mode") == 0 || strcmp(data, "dmask")==0) {
|
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if (!value || !*value) {
|
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printf ("Option '%s' requires a numerical argument\n", data);
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return 1;
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}
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|
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if (value[0] != '0') {
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printf ("WARNING: '%s' not expressed in octal.\n", data);
|
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}
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|
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if (strcmp (data, "dmask") == 0) {
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printf ("WARNING: CIFS mount option 'dmask' is deprecated. Use 'dir_mode' instead.\n");
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data = "dir_mode";
|
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}
|
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/* the following eight mount options should be
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stripped out from what is passed into the kernel
|
|
since these eight options are best passed as the
|
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mount flags rather than redundantly to the kernel
|
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and could generate spurious warnings depending on the
|
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level of the corresponding cifs vfs kernel code */
|
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} else if (strncmp(data, "nosuid", 6) == 0) {
|
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*filesys_flags |= MS_NOSUID;
|
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} else if (strncmp(data, "suid", 4) == 0) {
|
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*filesys_flags &= ~MS_NOSUID;
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} else if (strncmp(data, "nodev", 5) == 0) {
|
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*filesys_flags |= MS_NODEV;
|
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} else if (strncmp(data, "dev", 3) == 0) {
|
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*filesys_flags &= ~MS_NODEV;
|
|
} else if (strncmp(data, "noexec", 6) == 0) {
|
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*filesys_flags |= MS_NOEXEC;
|
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} else if (strncmp(data, "exec", 4) == 0) {
|
|
*filesys_flags &= ~MS_NOEXEC;
|
|
} else if (strncmp(data, "guest", 5) == 0) {
|
|
got_password=1;
|
|
} else if (strncmp(data, "ro", 2) == 0) {
|
|
*filesys_flags |= MS_RDONLY;
|
|
} else if (strncmp(data, "rw", 2) == 0) {
|
|
*filesys_flags &= ~MS_RDONLY;
|
|
} /* else if (strnicmp(data, "port", 4) == 0) {
|
|
if (value && *value) {
|
|
vol->port =
|
|
simple_strtoul(value, &value, 0);
|
|
}
|
|
} else if (strnicmp(data, "rsize", 5) == 0) {
|
|
if (value && *value) {
|
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vol->rsize =
|
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simple_strtoul(value, &value, 0);
|
|
}
|
|
} else if (strnicmp(data, "wsize", 5) == 0) {
|
|
if (value && *value) {
|
|
vol->wsize =
|
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simple_strtoul(value, &value, 0);
|
|
}
|
|
} else if (strnicmp(data, "version", 3) == 0) {
|
|
} else {
|
|
printf("CIFS: Unknown mount option %s\n",data);
|
|
} */ /* nothing to do on those four mount options above.
|
|
Just pass to kernel and ignore them here */
|
|
|
|
/* move to next option */
|
|
data = next_keyword+1;
|
|
|
|
/* put overwritten equals sign back */
|
|
if(value) {
|
|
value--;
|
|
*value = '=';
|
|
}
|
|
|
|
/* put previous overwritten comma back */
|
|
if(next_keyword)
|
|
*next_keyword = ',';
|
|
else
|
|
data = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Note that caller frees the returned buffer if necessary */
|
|
char * parse_server(char ** punc_name)
|
|
{
|
|
char * unc_name = *punc_name;
|
|
int length = strnlen(unc_name,1024);
|
|
char * share;
|
|
char * ipaddress_string = NULL;
|
|
struct hostent * host_entry;
|
|
struct in_addr server_ipaddr;
|
|
int rc;
|
|
|
|
if(length > 1023) {
|
|
printf("mount error: UNC name too long");
|
|
return NULL;
|
|
}
|
|
if (strncasecmp("cifs://",unc_name,7) == 0)
|
|
return parse_cifs_url(unc_name+7);
|
|
if (strncasecmp("smb://",unc_name,6) == 0) {
|
|
return parse_cifs_url(unc_name+6);
|
|
}
|
|
|
|
if(length < 3) {
|
|
/* BB add code to find DFS root here */
|
|
printf("\nMounting the DFS root for domain not implemented yet");
|
|
return NULL;
|
|
} else {
|
|
if(strncmp(unc_name,"//",2) && strncmp(unc_name,"\\\\",2)) {
|
|
/* check for nfs syntax ie server:share */
|
|
share = strchr(unc_name,':');
|
|
if(share) {
|
|
free_share_name = 1;
|
|
*punc_name = malloc(length+3);
|
|
*share = '/';
|
|
strncpy((*punc_name)+2,unc_name,length);
|
|
unc_name = *punc_name;
|
|
unc_name[length+2] = 0;
|
|
goto continue_unc_parsing;
|
|
} else {
|
|
printf("mount error: improperly formatted UNC name.");
|
|
printf(" %s does not begin with \\\\ or //\n",unc_name);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
continue_unc_parsing:
|
|
unc_name[0] = '/';
|
|
unc_name[1] = '/';
|
|
unc_name += 2;
|
|
if ((share = strchr(unc_name, '/')) ||
|
|
(share = strchr(unc_name,'\\'))) {
|
|
*share = 0; /* temporarily terminate the string */
|
|
share += 1;
|
|
if(got_ip == 0) {
|
|
host_entry = gethostbyname(unc_name);
|
|
}
|
|
*(share - 1) = '/'; /* put the slash back */
|
|
if(got_ip) {
|
|
if(verboseflag)
|
|
printf("ip address specified explicitly\n");
|
|
return NULL;
|
|
}
|
|
if(host_entry == NULL) {
|
|
printf("mount error: could not find target server. TCP name %s not found ", unc_name);
|
|
printf(" rc = %d\n",rc);
|
|
return NULL;
|
|
} else {
|
|
/* BB should we pass an alternate version of the share name as Unicode */
|
|
/* BB what about ipv6? BB */
|
|
/* BB add retries with alternate servers in list */
|
|
|
|
memcpy(&server_ipaddr.s_addr, host_entry->h_addr, 4);
|
|
|
|
ipaddress_string = inet_ntoa(server_ipaddr);
|
|
if(ipaddress_string == NULL) {
|
|
printf("mount error: could not get valid ip address for target server\n");
|
|
return NULL;
|
|
}
|
|
return ipaddress_string;
|
|
}
|
|
} else {
|
|
/* BB add code to find DFS root (send null path on get DFS Referral to specified server here */
|
|
printf("Mounting the DFS root for a particular server not implemented yet\n");
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct option longopts[] = {
|
|
{ "all", 0, NULL, 'a' },
|
|
{ "help",0, NULL, 'h' },
|
|
{ "move",0, NULL, 'm' },
|
|
{ "bind",0, NULL, 'b' },
|
|
{ "read-only", 0, NULL, 'r' },
|
|
{ "ro", 0, NULL, 'r' },
|
|
{ "verbose", 0, NULL, 'v' },
|
|
{ "version", 0, NULL, 'V' },
|
|
{ "read-write", 0, NULL, 'w' },
|
|
{ "rw", 0, NULL, 'w' },
|
|
{ "options", 1, NULL, 'o' },
|
|
{ "type", 1, NULL, 't' },
|
|
{ "rsize",1, NULL, 'R' },
|
|
{ "wsize",1, NULL, 'W' },
|
|
{ "uid", 1, NULL, '1'},
|
|
{ "gid", 1, NULL, '2'},
|
|
{ "user",1,NULL,'u'},
|
|
{ "username",1,NULL,'u'},
|
|
{ "dom",1,NULL,'d'},
|
|
{ "domain",1,NULL,'d'},
|
|
{ "password",1,NULL,'p'},
|
|
{ "pass",1,NULL,'p'},
|
|
{ "credentials",1,NULL,'c'},
|
|
{ "port",1,NULL,'P'},
|
|
/* { "uuid",1,NULL,'U'}, */ /* BB unimplemented */
|
|
{ NULL, 0, NULL, 0 }
|
|
};
|
|
|
|
int main(int argc, char ** argv)
|
|
{
|
|
int c;
|
|
int flags = MS_MANDLOCK; /* no need to set legacy MS_MGC_VAL */
|
|
char * orgoptions = NULL;
|
|
char * share_name = NULL;
|
|
char * domain_name = NULL;
|
|
char * ipaddr = NULL;
|
|
char * uuid = NULL;
|
|
char * mountpoint;
|
|
char * options;
|
|
char * resolved_path;
|
|
char * temp;
|
|
int rc;
|
|
int rsize = 0;
|
|
int wsize = 0;
|
|
int nomtab = 0;
|
|
int uid = 0;
|
|
int gid = 0;
|
|
int optlen = 0;
|
|
int orgoptlen = 0;
|
|
struct stat statbuf;
|
|
struct utsname sysinfo;
|
|
struct mntent mountent;
|
|
FILE * pmntfile;
|
|
|
|
/* setlocale(LC_ALL, "");
|
|
bindtextdomain(PACKAGE, LOCALEDIR);
|
|
textdomain(PACKAGE); */
|
|
|
|
if(argc && argv) {
|
|
thisprogram = argv[0];
|
|
}
|
|
if(thisprogram == NULL)
|
|
thisprogram = "mount.cifs";
|
|
|
|
uname(&sysinfo);
|
|
/* BB add workstation name and domain and pass down */
|
|
|
|
/* #ifdef _GNU_SOURCE
|
|
printf(" node: %s machine: %s sysname %s domain %s\n", sysinfo.nodename,sysinfo.machine,sysinfo.sysname,sysinfo.domainname);
|
|
#endif */
|
|
|
|
share_name = argv[1];
|
|
mountpoint = argv[2];
|
|
|
|
/* add sharename in opts string as unc= parm */
|
|
|
|
while ((c = getopt_long (argc, argv, "afFhilL:no:O:rsSU:vVwt:",
|
|
longopts, NULL)) != -1) {
|
|
switch (c) {
|
|
/* No code to do the following options yet */
|
|
/* case 'l':
|
|
list_with_volumelabel = 1;
|
|
break;
|
|
case 'L':
|
|
volumelabel = optarg;
|
|
break; */
|
|
/* case 'a':
|
|
++mount_all;
|
|
break; */
|
|
|
|
case '?':
|
|
case 'h': /* help */
|
|
mount_cifs_usage ();
|
|
exit(1);
|
|
case 'n':
|
|
++nomtab;
|
|
break;
|
|
case 'b':
|
|
flags |= MS_BIND;
|
|
break;
|
|
case 'm':
|
|
flags |= MS_MOVE;
|
|
break;
|
|
case 'o':
|
|
orgoptions = strdup(optarg);
|
|
break;
|
|
case 'r': /* mount readonly */
|
|
flags |= MS_RDONLY;
|
|
break;
|
|
case 'U':
|
|
uuid = optarg;
|
|
break;
|
|
case 'v':
|
|
++verboseflag;
|
|
break;
|
|
case 'V':
|
|
printf ("mount.cifs version: %s.%s%s\n",
|
|
MOUNT_CIFS_VERSION_MAJOR,
|
|
MOUNT_CIFS_VERSION_MINOR,
|
|
MOUNT_CIFS_VENDOR_SUFFIX);
|
|
if(mountpassword) {
|
|
memset(mountpassword,0,64);
|
|
}
|
|
exit (0);
|
|
case 'w':
|
|
flags &= ~MS_RDONLY;
|
|
break;
|
|
case 'R':
|
|
rsize = atoi(optarg) ;
|
|
break;
|
|
case 'W':
|
|
wsize = atoi(optarg);
|
|
break;
|
|
case '1':
|
|
uid = atoi(optarg);
|
|
break;
|
|
case '2':
|
|
gid = atoi(optarg);
|
|
break;
|
|
case 'u':
|
|
got_user = 1;
|
|
user_name = optarg;
|
|
break;
|
|
case 'd':
|
|
domain_name = optarg;
|
|
break;
|
|
case 'p':
|
|
if(mountpassword == NULL)
|
|
mountpassword = calloc(65,1);
|
|
if(mountpassword) {
|
|
got_password = 1;
|
|
strncpy(mountpassword,optarg,64);
|
|
}
|
|
break;
|
|
case 'S':
|
|
get_password_from_file(0 /* stdin */,NULL);
|
|
break;
|
|
case 't':
|
|
break;
|
|
default:
|
|
printf("unknown mount option %c\n",c);
|
|
mount_cifs_usage();
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if(argc < 3)
|
|
mount_cifs_usage();
|
|
|
|
if (getenv("PASSWD")) {
|
|
if(mountpassword == NULL)
|
|
mountpassword = calloc(65,1);
|
|
if(mountpassword) {
|
|
strncpy(mountpassword,getenv("PASSWD"),64);
|
|
got_password = 1;
|
|
}
|
|
} else if (getenv("PASSWD_FD")) {
|
|
get_password_from_file(atoi(getenv("PASSWD_FD")),NULL);
|
|
} else if (getenv("PASSWD_FILE")) {
|
|
get_password_from_file(0, getenv("PASSWD_FILE"));
|
|
}
|
|
|
|
if (orgoptions && parse_options(orgoptions, &flags))
|
|
return -1;
|
|
|
|
ipaddr = parse_server(&share_name);
|
|
if((ipaddr == NULL) && (got_ip == 0)) {
|
|
printf("No ip address specified and hostname not found\n");
|
|
return -1;
|
|
}
|
|
|
|
|
|
/* BB save off path and pop after mount returns? */
|
|
resolved_path = malloc(PATH_MAX+1);
|
|
if(resolved_path) {
|
|
/* Note that if we can not canonicalize the name, we get
|
|
another chance to see if it is valid when we chdir to it */
|
|
if (realpath(mountpoint, resolved_path)) {
|
|
mountpoint = resolved_path;
|
|
}
|
|
}
|
|
if(chdir(mountpoint)) {
|
|
printf("mount error: can not change directory into mount target %s\n",mountpoint);
|
|
return -1;
|
|
}
|
|
|
|
if(stat (".", &statbuf)) {
|
|
printf("mount error: mount point %s does not exist\n",mountpoint);
|
|
return -1;
|
|
}
|
|
|
|
if (S_ISDIR(statbuf.st_mode) == 0) {
|
|
printf("mount error: mount point %s is not a directory\n",mountpoint);
|
|
return -1;
|
|
}
|
|
|
|
if((getuid() != 0) && (geteuid() == 0)) {
|
|
if((statbuf.st_uid == getuid()) && (S_IRWXU == (statbuf.st_mode & S_IRWXU))) {
|
|
#ifndef CIFS_ALLOW_USR_SUID
|
|
/* Do not allow user mounts to control suid flag
|
|
for mount unless explicitly built that way */
|
|
flags |= MS_NOSUID | MS_NODEV;
|
|
#endif
|
|
} else {
|
|
printf("mount error: permission denied or not superuser and mount.cifs not installed SUID\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if(got_user == 0)
|
|
user_name = getusername();
|
|
|
|
if(got_password == 0) {
|
|
mountpassword = getpass("Password: "); /* BB obsolete */
|
|
got_password = 1;
|
|
}
|
|
/* FIXME launch daemon (handles dfs name resolution and credential change)
|
|
remember to clear parms and overwrite password field before launching */
|
|
if(orgoptions) {
|
|
optlen = strlen(orgoptions);
|
|
orgoptlen = optlen;
|
|
} else
|
|
optlen = 0;
|
|
if(share_name)
|
|
optlen += strlen(share_name) + 4;
|
|
if(user_name)
|
|
optlen += strlen(user_name) + 6;
|
|
if(ipaddr)
|
|
optlen += strlen(ipaddr) + 4;
|
|
if(mountpassword)
|
|
optlen += strlen(mountpassword) + 6;
|
|
options = malloc(optlen + 10);
|
|
|
|
if(options == NULL) {
|
|
printf("Could not allocate memory for mount options\n");
|
|
return -1;
|
|
}
|
|
|
|
|
|
options[0] = 0;
|
|
strncat(options,"unc=",4);
|
|
strcat(options,share_name);
|
|
/* scan backwards and reverse direction of slash */
|
|
temp = strrchr(options, '/');
|
|
if(temp > options + 6)
|
|
*temp = '\\';
|
|
if(ipaddr) {
|
|
strncat(options,",ip=",4);
|
|
strcat(options,ipaddr);
|
|
}
|
|
if(user_name) {
|
|
strncat(options,",user=",6);
|
|
strcat(options,user_name);
|
|
}
|
|
if(mountpassword) {
|
|
strncat(options,",pass=",6);
|
|
strcat(options,mountpassword);
|
|
}
|
|
strncat(options,",ver=",5);
|
|
strcat(options,MOUNT_CIFS_VERSION_MAJOR);
|
|
|
|
if(orgoptions) {
|
|
strcat(options,",");
|
|
strcat(options,orgoptions);
|
|
}
|
|
if(verboseflag)
|
|
printf("\nmount.cifs kernel mount options %s \n",options);
|
|
if(mount(share_name, mountpoint, "cifs", flags, options)) {
|
|
/* remember to kill daemon on error */
|
|
switch (errno) {
|
|
case 0:
|
|
printf("mount failed but no error number set\n");
|
|
break;
|
|
case ENODEV:
|
|
printf("mount error: cifs filesystem not supported by the system\n");
|
|
break;
|
|
default:
|
|
printf("mount error %d = %s\n",errno,strerror(errno));
|
|
}
|
|
printf("Refer to the mount.cifs(8) manual page (e.g.man mount.cifs)\n");
|
|
if(mountpassword) {
|
|
memset(mountpassword,0,64);
|
|
}
|
|
return -1;
|
|
} else {
|
|
pmntfile = setmntent(MOUNTED, "a+");
|
|
if(pmntfile) {
|
|
mountent.mnt_fsname = share_name;
|
|
mountent.mnt_dir = mountpoint;
|
|
mountent.mnt_type = "cifs";
|
|
mountent.mnt_opts = malloc(220);
|
|
if(mountent.mnt_opts) {
|
|
char * mount_user = getusername();
|
|
memset(mountent.mnt_opts,0,200);
|
|
if(flags & MS_RDONLY)
|
|
strcat(mountent.mnt_opts,"ro");
|
|
else
|
|
strcat(mountent.mnt_opts,"rw");
|
|
if(flags & MS_MANDLOCK)
|
|
strcat(mountent.mnt_opts,",mand");
|
|
else
|
|
strcat(mountent.mnt_opts,",nomand");
|
|
if(flags & MS_NOEXEC)
|
|
strcat(mountent.mnt_opts,",noexec");
|
|
if(flags & MS_NOSUID)
|
|
strcat(mountent.mnt_opts,",nosuid");
|
|
if(flags & MS_NODEV)
|
|
strcat(mountent.mnt_opts,",nodev");
|
|
if(flags & MS_SYNCHRONOUS)
|
|
strcat(mountent.mnt_opts,",synch");
|
|
if(mount_user) {
|
|
if(getuid() != 0) {
|
|
strcat(mountent.mnt_opts,",user=");
|
|
strcat(mountent.mnt_opts,mount_user);
|
|
}
|
|
free(mount_user);
|
|
}
|
|
}
|
|
mountent.mnt_freq = 0;
|
|
mountent.mnt_passno = 0;
|
|
rc = addmntent(pmntfile,&mountent);
|
|
endmntent(pmntfile);
|
|
if(mountent.mnt_opts)
|
|
free(mountent.mnt_opts);
|
|
} else {
|
|
printf("could not update mount table\n");
|
|
}
|
|
}
|
|
if(mountpassword) {
|
|
memset(mountpassword,0,64);
|
|
free(mountpassword);
|
|
}
|
|
|
|
if(options) {
|
|
memset(options,0,optlen);
|
|
free(options);
|
|
}
|
|
|
|
if(orgoptions) {
|
|
memset(orgoptions,0,orgoptlen);
|
|
free(orgoptions);
|
|
}
|
|
if(resolved_path) {
|
|
free(resolved_path);
|
|
}
|
|
|
|
if(free_share_name) {
|
|
free(share_name);
|
|
}
|
|
return 0;
|
|
}
|
|
|