diff options
Diffstat (limited to 'client/mount.cifs.c')
| -rw-r--r-- | client/mount.cifs.c | 1779 |
1 files changed, 0 insertions, 1779 deletions
diff --git a/client/mount.cifs.c b/client/mount.cifs.c deleted file mode 100644 index d307f4f012..0000000000 --- a/client/mount.cifs.c +++ /dev/null @@ -1,1779 +0,0 @@ -/* - Mount helper utility for Linux CIFS VFS (virtual filesystem) client - Copyright (C) 2003,2008 Steve French (sfrench@us.ibm.com) - Copyright (C) 2008 Jeremy Allison (jra@samba.org) - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. */ - -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <unistd.h> -#include <pwd.h> -#include <grp.h> -#include <ctype.h> -#include <sys/types.h> -#include <sys/mount.h> -#include <sys/stat.h> -#include <sys/utsname.h> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <getopt.h> -#include <errno.h> -#include <netdb.h> -#include <string.h> -#include <mntent.h> -#include <fcntl.h> -#include <limits.h> -#include <fstab.h> -#include "mount.h" - -#define MOUNT_CIFS_VERSION_MAJOR "1" -#define MOUNT_CIFS_VERSION_MINOR "14" - -#ifndef MOUNT_CIFS_VENDOR_SUFFIX - #ifdef _SAMBA_BUILD_ - #include "version.h" - #ifdef SAMBA_VERSION_VENDOR_SUFFIX - #define MOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING"-"SAMBA_VERSION_VENDOR_SUFFIX - #else - #define MOUNT_CIFS_VENDOR_SUFFIX "-"SAMBA_VERSION_OFFICIAL_STRING - #endif /* SAMBA_VERSION_OFFICIAL_STRING and SAMBA_VERSION_VENDOR_SUFFIX */ - #else - #define MOUNT_CIFS_VENDOR_SUFFIX "" - #endif /* _SAMBA_BUILD_ */ -#endif /* MOUNT_CIFS_VENDOR_SUFFIX */ - -#ifdef _SAMBA_BUILD_ -#include "include/config.h" -#endif - -#ifndef MS_MOVE -#define MS_MOVE 8192 -#endif - -#ifndef MS_BIND -#define MS_BIND 4096 -#endif - -/* private flags - clear these before passing to kernel */ -#define MS_USERS 0x40000000 -#define MS_USER 0x80000000 - -#define MAX_UNC_LEN 1024 - -#ifndef SAFE_FREE -#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0) -#endif - -#define MOUNT_PASSWD_SIZE 128 -#define DOMAIN_SIZE 64 - -/* currently maximum length of IPv6 address string */ -#define MAX_ADDRESS_LEN INET6_ADDRSTRLEN - -/* - * mount.cifs has been the subject of many "security" bugs that have arisen - * because of users and distributions installing it as a setuid root program. - * mount.cifs has not been audited for security. Thus, we strongly recommend - * that it not be installed setuid root. To make that abundantly clear, - * mount.cifs now check whether it's running setuid root and exit with an - * error if it is. If you wish to disable this check, then set the following - * #define to 1, but please realize that you do so at your own peril. - */ -#define CIFS_DISABLE_SETUID_CHECK 0 - -/* - * By default, mount.cifs follows the conventions set forth by /bin/mount - * for user mounts. That is, it requires that the mount be listed in - * /etc/fstab with the "user" option when run as an unprivileged user and - * mount.cifs is setuid root. - * - * Older versions of mount.cifs however were "looser" in this regard. When - * made setuid root, a user could run mount.cifs directly and mount any share - * on a directory owned by that user. - * - * The legacy behavior is now disabled by default. To reenable it, set the - * following #define to true. - */ -#define CIFS_LEGACY_SETUID_CHECK 0 - -/* - * When an unprivileged user runs a setuid mount.cifs, we set certain mount - * flags by default. These defaults can be changed here. - */ -#define CIFS_SETUID_FLAGS (MS_NOSUID|MS_NODEV) - -const char *thisprogram; -int verboseflag = 0; -int fakemnt = 0; -static int got_password = 0; -static int got_user = 0; -static int got_domain = 0; -static int got_ip = 0; -static int got_unc = 0; -static int got_uid = 0; -static int got_gid = 0; -static char * user_name = NULL; -static char * mountpassword = NULL; -char * domain_name = NULL; -char * prefixpath = NULL; -const char *cifs_fstype = "cifs"; - -/* glibc doesn't have strlcpy, strlcat. Ensure we do. JRA. We - * don't link to libreplace so need them here. */ - -/* like strncpy but does not 0 fill the buffer and always null - * terminates. bufsize is the size of the destination buffer */ - -#ifndef HAVE_STRLCPY -static size_t strlcpy(char *d, const char *s, size_t bufsize) -{ - size_t len = strlen(s); - size_t ret = len; - if (bufsize <= 0) return 0; - if (len >= bufsize) len = bufsize-1; - memcpy(d, s, len); - d[len] = 0; - return ret; -} -#endif - -/* like strncat but does not 0 fill the buffer and always null - * terminates. bufsize is the length of the buffer, which should - * be one more than the maximum resulting string length */ - -#ifndef HAVE_STRLCAT -static size_t strlcat(char *d, const char *s, size_t bufsize) -{ - size_t len1 = strlen(d); - size_t len2 = strlen(s); - size_t ret = len1 + len2; - - if (len1+len2 >= bufsize) { - if (bufsize < (len1+1)) { - return ret; - } - len2 = bufsize - (len1+1); - } - if (len2 > 0) { - memcpy(d+len1, s, len2); - d[len1+len2] = 0; - } - return ret; -} -#endif - -/* - * If an unprivileged user is doing the mounting then we need to ensure - * that the entry is in /etc/fstab. - */ -static int -check_mountpoint(const char *progname, char *mountpoint) -{ - int err; - struct stat statbuf; - - /* does mountpoint exist and is it a directory? */ - err = stat(".", &statbuf); - if (err) { - fprintf(stderr, "%s: failed to stat %s: %s\n", progname, - mountpoint, strerror(errno)); - return EX_USAGE; - } - - if (!S_ISDIR(statbuf.st_mode)) { - fprintf(stderr, "%s: %s is not a directory!", progname, - mountpoint); - return EX_USAGE; - } - -#if CIFS_LEGACY_SETUID_CHECK - /* do extra checks on mountpoint for legacy setuid behavior */ - if (!getuid() || geteuid()) - return 0; - - if (statbuf.st_uid != getuid()) { - fprintf(stderr, "%s: %s is not owned by user\n", progname, - mountpoint); - return EX_USAGE; - } - - if ((statbuf.st_mode & S_IRWXU) != S_IRWXU) { - fprintf(stderr, "%s: invalid permissions on %s\n", progname, - mountpoint); - return EX_USAGE; - } -#endif /* CIFS_LEGACY_SETUID_CHECK */ - - return 0; -} - -#if CIFS_DISABLE_SETUID_CHECK -static int -check_setuid(void) -{ - return 0; -} -#else /* CIFS_DISABLE_SETUID_CHECK */ -static int -check_setuid(void) -{ - if (getuid() && !geteuid()) { - printf("This mount.cifs program has been built with the " - "ability to run as a setuid root program disabled.\n" - "mount.cifs has not been well audited for security " - "holes. Therefore the Samba team does not recommend " - "installing it as a setuid root program.\n"); - return 1; - } - - return 0; -} -#endif /* CIFS_DISABLE_SETUID_CHECK */ - -#if CIFS_LEGACY_SETUID_CHECK -static int -check_fstab(const char *progname, char *mountpoint, char *devname, - char **options) -{ - return 0; -} -#else /* CIFS_LEGACY_SETUID_CHECK */ -static int -check_fstab(const char *progname, char *mountpoint, char *devname, - char **options) -{ - FILE *fstab; - struct mntent *mnt; - - /* make sure this mount is listed in /etc/fstab */ - fstab = setmntent(_PATH_FSTAB, "r"); - if (!fstab) { - fprintf(stderr, "Couldn't open %s for reading!\n", - _PATH_FSTAB); - return EX_FILEIO; - } - - while((mnt = getmntent(fstab))) { - if (!strcmp(mountpoint, mnt->mnt_dir)) - break; - } - endmntent(fstab); - - if (mnt == NULL || strcmp(mnt->mnt_fsname, devname)) { - fprintf(stderr, "%s: permission denied: no match for " - "%s found in %s\n", progname, mountpoint, - _PATH_FSTAB); - return EX_USAGE; - } - - /* - * 'mount' munges the options from fstab before passing them - * to us. It is non-trivial to test that we have the correct - * set of options. We don't want to trust what the user - * gave us, so just take whatever is in /etc/fstab. - */ - free(*options); - *options = strdup(mnt->mnt_opts); - return 0; -} -#endif /* CIFS_LEGACY_SETUID_CHECK */ - -/* BB finish BB - - cifs_umount - open nofollow - avoid symlink exposure? - get owner of dir see if matches self or if root - call system(umount argv) etc. - -BB end finish BB */ - -static char * check_for_domain(char **); - - -static void mount_cifs_usage(FILE *stream) -{ - fprintf(stream, "\nUsage: %s <remotetarget> <dir> -o <options>\n", thisprogram); - fprintf(stream, "\nMount the remote target, specified as a UNC name,"); - fprintf(stream, " to a local directory.\n\nOptions:\n"); - fprintf(stream, "\tuser=<arg>\n\tpass=<arg>\n\tdom=<arg>\n"); - fprintf(stream, "\nLess commonly used options:"); - fprintf(stream, "\n\tcredentials=<filename>,guest,perm,noperm,setuids,nosetuids,rw,ro,"); - fprintf(stream, "\n\tsep=<char>,iocharset=<codepage>,suid,nosuid,exec,noexec,serverino,"); - fprintf(stream, "\n\tmapchars,nomapchars,nolock,servernetbiosname=<SRV_RFC1001NAME>"); - fprintf(stream, "\n\tdirectio,nounix,cifsacl,sec=<authentication mechanism>,sign"); - fprintf(stream, "\n\nOptions not needed for servers supporting CIFS Unix extensions"); - fprintf(stream, "\n\t(e.g. unneeded for mounts to most Samba versions):"); - fprintf(stream, "\n\tuid=<uid>,gid=<gid>,dir_mode=<mode>,file_mode=<mode>,sfu"); - fprintf(stream, "\n\nRarely used options:"); - fprintf(stream, "\n\tport=<tcpport>,rsize=<size>,wsize=<size>,unc=<unc_name>,ip=<ip_address>,"); - fprintf(stream, "\n\tdev,nodev,nouser_xattr,netbiosname=<OUR_RFC1001NAME>,hard,soft,intr,"); - fprintf(stream, "\n\tnointr,ignorecase,noposixpaths,noacl,prefixpath=<path>,nobrl"); - fprintf(stream, "\n\nOptions are described in more detail in the manual page"); - fprintf(stream, "\n\tman 8 mount.cifs\n"); - fprintf(stream, "\nTo display the version number of the mount helper:"); - fprintf(stream, "\n\t%s -V\n",thisprogram); - - SAFE_FREE(mountpassword); - - if (stream == stderr) - exit(EX_USAGE); - exit(0); -} - -/* caller frees username if necessary */ -static char * getusername(void) { - char *username = NULL; - struct passwd *password = getpwuid(getuid()); - - if (password) { - username = password->pw_name; - } - return username; -} - -static int open_cred_file(char * file_name) -{ - char * line_buf; - char * temp_val; - FILE * fs; - int i, length; - - i = access(file_name, R_OK); - if (i) - return i; - - fs = fopen(file_name,"r"); - if(fs == NULL) - return errno; - line_buf = (char *)malloc(4096); - if(line_buf == NULL) { - fclose(fs); - return ENOMEM; - } - - while(fgets(line_buf,4096,fs)) { - /* parse line from credential file */ - - /* eat leading white space */ - for(i=0;i<4086;i++) { - if((line_buf[i] != ' ') && (line_buf[i] != '\t')) - break; - /* if whitespace - skip past it */ - } - if (strncasecmp("username",line_buf+i,8) == 0) { - temp_val = strchr(line_buf + i,'='); - if(temp_val) { - /* go past equals sign */ - temp_val++; - for(length = 0;length<4087;length++) { - if ((temp_val[length] == '\n') - || (temp_val[length] == '\0')) { - temp_val[length] = '\0'; - break; - } - } - if(length > 4086) { - fprintf(stderr, "mount.cifs failed due to malformed username in credentials file\n"); - memset(line_buf,0,4096); - exit(EX_USAGE); - } else { - got_user = 1; - user_name = (char *)calloc(1 + length,1); - /* BB adding free of user_name string before exit, - not really necessary but would be cleaner */ - strlcpy(user_name,temp_val, length+1); - } - } - } else if (strncasecmp("password",line_buf+i,8) == 0) { - temp_val = strchr(line_buf+i,'='); - if(temp_val) { - /* go past equals sign */ - temp_val++; - for(length = 0;length<MOUNT_PASSWD_SIZE+1;length++) { - if ((temp_val[length] == '\n') - || (temp_val[length] == '\0')) { - temp_val[length] = '\0'; - break; - } - } - if(length > MOUNT_PASSWD_SIZE) { - fprintf(stderr, "mount.cifs failed: password in credentials file too long\n"); - memset(line_buf,0, 4096); - exit(EX_USAGE); - } else { - if(mountpassword == NULL) { - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - } else - memset(mountpassword,0,MOUNT_PASSWD_SIZE); - if(mountpassword) { - strlcpy(mountpassword,temp_val,MOUNT_PASSWD_SIZE+1); - got_password = 1; - } - } - } - } else if (strncasecmp("domain",line_buf+i,6) == 0) { - temp_val = strchr(line_buf+i,'='); - if(temp_val) { - /* go past equals sign */ - temp_val++; - if(verboseflag) - fprintf(stderr, "\nDomain %s\n",temp_val); - for(length = 0;length<DOMAIN_SIZE+1;length++) { - if ((temp_val[length] == '\n') - || (temp_val[length] == '\0')) { - temp_val[length] = '\0'; - break; - } - } - if(length > DOMAIN_SIZE) { - fprintf(stderr, "mount.cifs failed: domain in credentials file too long\n"); - exit(EX_USAGE); - } else { - if(domain_name == NULL) { - domain_name = (char *)calloc(DOMAIN_SIZE+1,1); - } else - memset(domain_name,0,DOMAIN_SIZE); - if(domain_name) { - strlcpy(domain_name,temp_val,DOMAIN_SIZE+1); - got_domain = 1; - } - } - } - } - - } - fclose(fs); - SAFE_FREE(line_buf); - return 0; -} - -static int get_password_from_file(int file_descript, char * filename) -{ - int rc = 0; - int i; - char c; - - if(mountpassword == NULL) - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - else - memset(mountpassword, 0, MOUNT_PASSWD_SIZE); - - if (mountpassword == NULL) { - fprintf(stderr, "malloc failed\n"); - exit(EX_SYSERR); - } - - if(filename != NULL) { - rc = access(filename, R_OK); - if (rc) { - fprintf(stderr, "mount.cifs failed: access check of %s failed: %s\n", - filename, strerror(errno)); - exit(EX_SYSERR); - } - file_descript = open(filename, O_RDONLY); - if(file_descript < 0) { - fprintf(stderr, "mount.cifs failed. %s attempting to open password file %s\n", - strerror(errno),filename); - exit(EX_SYSERR); - } - } - /* else file already open and fd provided */ - - for(i=0;i<MOUNT_PASSWD_SIZE;i++) { - rc = read(file_descript,&c,1); - if(rc < 0) { - fprintf(stderr, "mount.cifs failed. Error %s reading password file\n",strerror(errno)); - if(filename != NULL) - close(file_descript); - exit(EX_SYSERR); - } else if(rc == 0) { - if(mountpassword[0] == 0) { - if(verboseflag) - fprintf(stderr, "\nWarning: null password used since cifs password file empty"); - } - break; - } else /* read valid character */ { - if((c == 0) || (c == '\n')) { - mountpassword[i] = '\0'; - break; - } else - mountpassword[i] = c; - } - } - if((i == MOUNT_PASSWD_SIZE) && (verboseflag)) { - fprintf(stderr, "\nWarning: password longer than %d characters specified in cifs password file", - MOUNT_PASSWD_SIZE); - } - got_password = 1; - if(filename != NULL) { - close(file_descript); - } - - return rc; -} - -static int parse_options(char ** optionsp, unsigned long * filesys_flags) -{ - const char * data; - char * percent_char = NULL; - char * value = NULL; - char * next_keyword = NULL; - char * out = NULL; - int out_len = 0; - int word_len; - int rc = 0; - char user[32]; - char group[32]; - - if (!optionsp || !*optionsp) - return 1; - data = *optionsp; - - /* BB fixme check for separator override BB */ - - if (getuid()) { - got_uid = 1; - snprintf(user,sizeof(user),"%u",getuid()); - got_gid = 1; - snprintf(group,sizeof(group),"%u",getgid()); - } - -/* while ((data = strsep(&options, ",")) != NULL) { */ - while(data != NULL) { - /* check if ends with trailing comma */ - if(*data == 0) - break; - - /* format is keyword=value,keyword2=value2,keyword3=value3 etc.) */ - /* data = next keyword */ - /* value = next value ie stuff after equal sign */ - - next_keyword = strchr(data,','); /* BB handle sep= */ - - /* temporarily null terminate end of keyword=value pair */ - if(next_keyword) - *next_keyword++ = 0; - - /* temporarily null terminate keyword to make keyword and value distinct */ - if ((value = strchr(data, '=')) != NULL) { - *value = '\0'; - value++; - } - - if (strncmp(data, "users",5) == 0) { - if(!value || !*value) { - *filesys_flags |= MS_USERS; - goto nocopy; - } - } else if (strncmp(data, "user_xattr",10) == 0) { - /* do nothing - need to skip so not parsed as user name */ - } else if (strncmp(data, "user", 4) == 0) { - - if (!value || !*value) { - if(data[4] == '\0') { - *filesys_flags |= MS_USER; - goto nocopy; - } else { - fprintf(stderr, "username specified with no parameter\n"); - SAFE_FREE(out); - return 1; /* needs_arg; */ - } - } else { - if (strnlen(value, 260) < 260) { - got_user=1; - percent_char = strchr(value,'%'); - if(percent_char) { - *percent_char = ','; - if(mountpassword == NULL) - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - if(mountpassword) { - if(got_password) - fprintf(stderr, "\nmount.cifs warning - password specified twice\n"); - got_password = 1; - percent_char++; - strlcpy(mountpassword, percent_char,MOUNT_PASSWD_SIZE+1); - /* remove password from username */ - while(*percent_char != 0) { - *percent_char = ','; - percent_char++; - } - } - } - /* this is only case in which the user - name buf is not malloc - so we have to - check for domain name embedded within - the user name here since the later - call to check_for_domain will not be - invoked */ - domain_name = check_for_domain(&value); - } else { - fprintf(stderr, "username too long\n"); - SAFE_FREE(out); - return 1; - } - } - } else if (strncmp(data, "pass", 4) == 0) { - if (!value || !*value) { - if(got_password) { - fprintf(stderr, "\npassword specified twice, ignoring second\n"); - } else - got_password = 1; - } else if (strnlen(value, MOUNT_PASSWD_SIZE) < MOUNT_PASSWD_SIZE) { - if (got_password) { - fprintf(stderr, "\nmount.cifs warning - password specified twice\n"); - } else { - mountpassword = strndup(value, MOUNT_PASSWD_SIZE); - if (!mountpassword) { - fprintf(stderr, "mount.cifs error: %s", strerror(ENOMEM)); - SAFE_FREE(out); - return 1; - } - got_password = 1; - } - } else { - fprintf(stderr, "password too long\n"); - SAFE_FREE(out); - return 1; - } - goto nocopy; - } else if (strncmp(data, "sec", 3) == 0) { - if (value) { - if (!strncmp(value, "none", 4) || - !strncmp(value, "krb5", 4)) - got_password = 1; - } - } else if (strncmp(data, "ip", 2) == 0) { - if (!value || !*value) { - fprintf(stderr, "target ip address argument missing"); - } else if (strnlen(value, MAX_ADDRESS_LEN) <= MAX_ADDRESS_LEN) { - if(verboseflag) - fprintf(stderr, "ip address %s override specified\n",value); - got_ip = 1; - } else { - fprintf(stderr, "ip address too long\n"); - SAFE_FREE(out); - return 1; - } - } else if ((strncmp(data, "unc", 3) == 0) - || (strncmp(data, "target", 6) == 0) - || (strncmp(data, "path", 4) == 0)) { - if (!value || !*value) { - fprintf(stderr, "invalid path to network resource\n"); - SAFE_FREE(out); - return 1; /* needs_arg; */ - } else if(strnlen(value,5) < 5) { - fprintf(stderr, "UNC name too short"); - } - - if (strnlen(value, 300) < 300) { - got_unc = 1; - if (strncmp(value, "//", 2) == 0) { - if(got_unc) - fprintf(stderr, "unc name specified twice, ignoring second\n"); - else - got_unc = 1; - } else if (strncmp(value, "\\\\", 2) != 0) { - fprintf(stderr, "UNC Path does not begin with // or \\\\ \n"); - SAFE_FREE(out); - return 1; - } else { - if(got_unc) - fprintf(stderr, "unc name specified twice, ignoring second\n"); - else - got_unc = 1; - } - } else { - fprintf(stderr, "CIFS: UNC name too long\n"); - SAFE_FREE(out); - return 1; - } - } else if ((strncmp(data, "dom" /* domain */, 3) == 0) - || (strncmp(data, "workg", 5) == 0)) { - /* note this allows for synonyms of "domain" - such as "DOM" and "dom" and "workgroup" - and "WORKGRP" etc. */ - if (!value || !*value) { - fprintf(stderr, "CIFS: invalid domain name\n"); - SAFE_FREE(out); - return 1; /* needs_arg; */ - } - if (strnlen(value, DOMAIN_SIZE+1) < DOMAIN_SIZE+1) { - got_domain = 1; - } else { - fprintf(stderr, "domain name too long\n"); - SAFE_FREE(out); - return 1; - } - } else if (strncmp(data, "cred", 4) == 0) { - if (value && *value) { - rc = open_cred_file(value); - if(rc) { - fprintf(stderr, "error %d (%s) opening credential file %s\n", - rc, strerror(rc), value); - SAFE_FREE(out); - return 1; - } - } else { - fprintf(stderr, "invalid credential file name specified\n"); - SAFE_FREE(out); - return 1; - } - } else if (strncmp(data, "uid", 3) == 0) { - if (value && *value) { - got_uid = 1; - if (!isdigit(*value)) { - struct passwd *pw; - - if (!(pw = getpwnam(value))) { - fprintf(stderr, "bad user name \"%s\"\n", value); - exit(EX_USAGE); - } - snprintf(user, sizeof(user), "%u", pw->pw_uid); - } else { - strlcpy(user,value,sizeof(user)); - } - } - goto nocopy; - } else if (strncmp(data, "gid", 3) == 0) { - if (value && *value) { - got_gid = 1; - if (!isdigit(*value)) { - struct group *gr; - - if (!(gr = getgrnam(value))) { - fprintf(stderr, "bad group name \"%s\"\n", value); - exit(EX_USAGE); - } - snprintf(group, sizeof(group), "%u", gr->gr_gid); - } else { - strlcpy(group,value,sizeof(group)); - } - } - goto nocopy; - /* fmask and dmask synonyms for people used to smbfs syntax */ - } else if (strcmp(data, "file_mode") == 0 || strcmp(data, "fmask")==0) { - if (!value || !*value) { - fprintf(stderr, "Option '%s' requires a numerical argument\n", data); - SAFE_FREE(out); - return 1; - } - - if (value[0] != '0') { - fprintf(stderr, "WARNING: '%s' not expressed in octal.\n", data); - } - - if (strcmp (data, "fmask") == 0) { - fprintf(stderr, "WARNING: CIFS mount option 'fmask' is deprecated. Use 'file_mode' instead.\n"); - data = "file_mode"; /* BB fix this */ - } - } else if (strcmp(data, "dir_mode") == 0 || strcmp(data, "dmask")==0) { - if (!value || !*value) { - fprintf(stderr, "Option '%s' requires a numerical argument\n", data); - SAFE_FREE(out); - return 1; - } - - if (value[0] != '0') { - fprintf(stderr, "WARNING: '%s' not expressed in octal.\n", data); - } - - if (strcmp (data, "dmask") == 0) { - fprintf(stderr, "WARNING: CIFS mount option 'dmask' is deprecated. Use 'dir_mode' instead.\n"); - data = "dir_mode"; - } - /* the following eight mount options should be - stripped out from what is passed into the kernel - since these eight options are best passed as the - mount flags rather than redundantly to the kernel - and could generate spurious warnings depending on the - level of the corresponding cifs vfs kernel code */ - } else if (strncmp(data, "nosuid", 6) == 0) { - *filesys_flags |= MS_NOSUID; - } else if (strncmp(data, "suid", 4) == 0) { - *filesys_flags &= ~MS_NOSUID; - } else if (strncmp(data, "nodev", 5) == 0) { - *filesys_flags |= MS_NODEV; - } else if ((strncmp(data, "nobrl", 5) == 0) || - (strncmp(data, "nolock", 6) == 0)) { - *filesys_flags &= ~MS_MANDLOCK; - } else if (strncmp(data, "dev", 3) == 0) { - *filesys_flags &= ~MS_NODEV; - } else if (strncmp(data, "noexec", 6) == 0) { - *filesys_flags |= MS_NOEXEC; - } else if (strncmp(data, "exec", 4) == 0) { - *filesys_flags &= ~MS_NOEXEC; - } else if (strncmp(data, "guest", 5) == 0) { - user_name = (char *)calloc(1, 1); - got_user = 1; - got_password = 1; - } else if (strncmp(data, "ro", 2) == 0) { - *filesys_flags |= MS_RDONLY; - goto nocopy; - } else if (strncmp(data, "rw", 2) == 0) { - *filesys_flags &= ~MS_RDONLY; - goto nocopy; - } else if (strncmp(data, "remount", 7) == 0) { - *filesys_flags |= MS_REMOUNT; - } /* 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) { - vol->rsize = - simple_strtoul(value, &value, 0); - } - } else if (strnicmp(data, "wsize", 5) == 0) { - if (value && *value) { - vol->wsize = - simple_strtoul(value, &value, 0); - } - } else if (strnicmp(data, "version", 3) == 0) { - } else { - fprintf(stderr, "CIFS: Unknown mount option %s\n",data); - } */ /* nothing to do on those four mount options above. - Just pass to kernel and ignore them here */ - - /* Copy (possibly modified) option to out */ - word_len = strlen(data); - if (value) - word_len += 1 + strlen(value); - - out = (char *)realloc(out, out_len + word_len + 2); - if (out == NULL) { - perror("malloc"); - exit(EX_SYSERR); - } - - if (out_len) { - strlcat(out, ",", out_len + word_len + 2); - out_len++; - } - - if (value) - snprintf(out + out_len, word_len + 1, "%s=%s", data, value); - else - snprintf(out + out_len, word_len + 1, "%s", data); - out_len = strlen(out); - -nocopy: - data = next_keyword; - } - - /* special-case the uid and gid */ - if (got_uid) { - word_len = strlen(user); - - out = (char *)realloc(out, out_len + word_len + 6); - if (out == NULL) { - perror("malloc"); - exit(EX_SYSERR); - } - - if (out_len) { - strlcat(out, ",", out_len + word_len + 6); - out_len++; - } - snprintf(out + out_len, word_len + 5, "uid=%s", user); - out_len = strlen(out); - } - if (got_gid) { - word_len = strlen(group); - - out = (char *)realloc(out, out_len + 1 + word_len + 6); - if (out == NULL) { - perror("malloc"); - exit(EX_SYSERR); - } - - if (out_len) { - strlcat(out, ",", out_len + word_len + 6); - out_len++; - } - snprintf(out + out_len, word_len + 5, "gid=%s", group); - out_len = strlen(out); - } - - SAFE_FREE(*optionsp); - *optionsp = out; - return 0; -} - -/* replace all (one or more) commas with double commas */ -static void check_for_comma(char ** ppasswrd) -{ - char *new_pass_buf; - char *pass; - int i,j; - int number_of_commas = 0; - int len; - - if(ppasswrd == NULL) - return; - else - (pass = *ppasswrd); - - len = strlen(pass); - - for(i=0;i<len;i++) { - if(pass[i] == ',') - number_of_commas++; - } - - if(number_of_commas == 0) - return; - if(number_of_commas > MOUNT_PASSWD_SIZE) { - /* would otherwise overflow the mount options buffer */ - fprintf(stderr, "\nInvalid password. Password contains too many commas.\n"); - return; - } - - new_pass_buf = (char *)malloc(len+number_of_commas+1); - if(new_pass_buf == NULL) - return; - - for(i=0,j=0;i<len;i++,j++) { - new_pass_buf[j] = pass[i]; - if(pass[i] == ',') { - j++; - new_pass_buf[j] = pass[i]; - } - } - new_pass_buf[len+number_of_commas] = 0; - - SAFE_FREE(*ppasswrd); - *ppasswrd = new_pass_buf; - - return; -} - -/* Usernames can not have backslash in them and we use - [BB check if usernames can have forward slash in them BB] - backslash as domain\user separator character -*/ -static char * check_for_domain(char **ppuser) -{ - char * original_string; - char * usernm; - char * domainnm; - int original_len; - int len; - int i; - - if(ppuser == NULL) - return NULL; - - original_string = *ppuser; - - if (original_string == NULL) - return NULL; - - original_len = strlen(original_string); - - usernm = strchr(*ppuser,'/'); - if (usernm == NULL) { - usernm = strchr(*ppuser,'\\'); - if (usernm == NULL) - return NULL; - } - - if(got_domain) { - fprintf(stderr, "Domain name specified twice. Username probably malformed\n"); - return NULL; - } - - usernm[0] = 0; - domainnm = *ppuser; - if (domainnm[0] != 0) { - got_domain = 1; - } else { - fprintf(stderr, "null domain\n"); - } - len = strlen(domainnm); - /* reset domainm to new buffer, and copy - domain name into it */ - domainnm = (char *)malloc(len+1); - if(domainnm == NULL) - return NULL; - - strlcpy(domainnm,*ppuser,len+1); - -/* move_string(*ppuser, usernm+1) */ - len = strlen(usernm+1); - - if(len >= original_len) { - /* should not happen */ - return domainnm; - } - - for(i=0;i<original_len;i++) { - if(i<len) - original_string[i] = usernm[i+1]; - else /* stuff with commas to remove last parm */ - original_string[i] = ','; - } - - /* BB add check for more than one slash? - strchr(*ppuser,'/'); - strchr(*ppuser,'\\') - */ - - return domainnm; -} - -/* replace all occurances of "from" in a string with "to" */ -static void replace_char(char *string, char from, char to, int maxlen) -{ - char *lastchar = string + maxlen; - while (string) { - string = strchr(string, from); - if (string) { - *string = to; - if (string >= lastchar) - return; - } - } -} - -/* Note that caller frees the returned buffer if necessary */ -static struct addrinfo * -parse_server(char ** punc_name) -{ - char * unc_name = *punc_name; - int length = strnlen(unc_name, MAX_UNC_LEN); - char * share; - struct addrinfo *addrlist; - int rc; - - if(length > (MAX_UNC_LEN - 1)) { - fprintf(stderr, "mount error: UNC name too long"); - return NULL; - } - if ((strncasecmp("cifs://", unc_name, 7) == 0) || - (strncasecmp("smb://", unc_name, 6) == 0)) { - fprintf(stderr, "\nMounting cifs URL not implemented yet. Attempt to mount %s\n", unc_name); - return NULL; - } - - if(length < 3) { - /* BB add code to find DFS root here */ - fprintf(stderr, "\nMounting the DFS root for domain not implemented yet\n"); - 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) { - *punc_name = (char *)malloc(length+3); - if(*punc_name == NULL) { - /* put the original string back if - no memory left */ - *punc_name = unc_name; - return NULL; - } - *share = '/'; - strlcpy((*punc_name)+2,unc_name,length+1); - SAFE_FREE(unc_name); - unc_name = *punc_name; - unc_name[length+2] = 0; - goto continue_unc_parsing; - } else { - fprintf(stderr, "mount error: improperly formatted UNC name."); - fprintf(stderr, " %s does not begin with \\\\ or //\n",unc_name); - return NULL; - } - } else { -continue_unc_parsing: - unc_name[0] = '/'; - unc_name[1] = '/'; - unc_name += 2; - - /* allow for either delimiter between host and sharename */ - if ((share = strpbrk(unc_name, "/\\"))) { - *share = 0; /* temporarily terminate the string */ - share += 1; - if(got_ip == 0) { - rc = getaddrinfo(unc_name, NULL, NULL, &addrlist); - if (rc != 0) { - fprintf(stderr, "mount error: could not resolve address for %s: %s\n", - unc_name, gai_strerror(rc)); - addrlist = NULL; - } - } - *(share - 1) = '/'; /* put delimiter back */ - - /* we don't convert the prefixpath delimiters since '\\' is a valid char in posix paths */ - if ((prefixpath = strpbrk(share, "/\\"))) { - *prefixpath = 0; /* permanently terminate the string */ - if (!strlen(++prefixpath)) - prefixpath = NULL; /* this needs to be done explicitly */ - } - if(got_ip) { - if(verboseflag) - fprintf(stderr, "ip address specified explicitly\n"); - return NULL; - } - /* BB should we pass an alternate version of the share name as Unicode */ - - return addrlist; - } else { - /* BB add code to find DFS root (send null path on get DFS Referral to specified server here */ - fprintf(stderr, "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 } -}; - -/* convert a string to uppercase. return false if the string - * wasn't ASCII. Return success on a NULL ptr */ -static int -uppercase_string(char *string) -{ - if (!string) - return 1; - - while (*string) { - /* check for unicode */ - if ((unsigned char) string[0] & 0x80) - return 0; - *string = toupper((unsigned char) *string); - string++; - } - - return 1; -} - -static void print_cifs_mount_version(void) -{ - printf("mount.cifs version: %s.%s%s\n", - MOUNT_CIFS_VERSION_MAJOR, - MOUNT_CIFS_VERSION_MINOR, - MOUNT_CIFS_VENDOR_SUFFIX); -} - -/* - * This function borrowed from fuse-utils... - * - * glibc's addmntent (at least as of 2.10 or so) doesn't properly encode - * newlines embedded within the text fields. To make sure no one corrupts - * the mtab, fail the mount if there are embedded newlines. - */ -static int check_newline(const char *progname, const char *name) -{ - const char *s; - for (s = "\n"; *s; s++) { - if (strchr(name, *s)) { - fprintf(stderr, "%s: illegal character 0x%02x in mount entry\n", - progname, *s); - return EX_USAGE; - } - } - return 0; -} - -static int check_mtab(const char *progname, const char *devname, - const char *dir) -{ - if (check_newline(progname, devname) == -1 || - check_newline(progname, dir) == -1) - return EX_USAGE; - return 0; -} - - -int main(int argc, char ** argv) -{ - int c; - unsigned long flags = MS_MANDLOCK; - char * orgoptions = NULL; - char * share_name = NULL; - const char * ipaddr = NULL; - char * uuid = NULL; - char * mountpoint = NULL; - char * options = NULL; - char * optionstail; - char * resolved_path = NULL; - char * temp; - char * dev_name; - int rc = 0; - int rsize = 0; - int wsize = 0; - int nomtab = 0; - int uid = 0; - int gid = 0; - int optlen = 0; - int orgoptlen = 0; - size_t options_size = 0; - size_t current_len; - int retry = 0; /* set when we have to retry mount with uppercase */ - struct addrinfo *addrhead = NULL, *addr; - struct utsname sysinfo; - struct mntent mountent; - struct sockaddr_in *addr4; - struct sockaddr_in6 *addr6; - FILE * pmntfile; - - if (check_setuid()) - return EX_USAGE; - - /* setlocale(LC_ALL, ""); - bindtextdomain(PACKAGE, LOCALEDIR); - textdomain(PACKAGE); */ - - if(argc && argv) - thisprogram = argv[0]; - else - mount_cifs_usage(stderr); - - if(thisprogram == NULL) - thisprogram = "mount.cifs"; - - uname(&sysinfo); - /* BB add workstation name and domain and pass down */ - -/* #ifdef _GNU_SOURCE - fprintf(stderr, " node: %s machine: %s sysname %s domain %s\n", sysinfo.nodename,sysinfo.machine,sysinfo.sysname,sysinfo.domainname); -#endif */ - if(argc > 2) { - dev_name = argv[1]; - share_name = strndup(argv[1], MAX_UNC_LEN); - if (share_name == NULL) { - fprintf(stderr, "%s: %s", argv[0], strerror(ENOMEM)); - exit(EX_SYSERR); - } - mountpoint = argv[2]; - } else if (argc == 2) { - if ((strcmp(argv[1], "-V") == 0) || - (strcmp(argv[1], "--version") == 0)) - { - print_cifs_mount_version(); - exit(0); - } - - if ((strcmp(argv[1], "-h") == 0) || - (strcmp(argv[1], "-?") == 0) || - (strcmp(argv[1], "--help") == 0)) - mount_cifs_usage(stdout); - - mount_cifs_usage(stderr); - } else { - mount_cifs_usage(stderr); - } - - - /* 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(stdout); - case 'n': - ++nomtab; - break; - case 'b': -#ifdef MS_BIND - flags |= MS_BIND; -#else - fprintf(stderr, - "option 'b' (MS_BIND) not supported\n"); -#endif - break; - case 'm': -#ifdef MS_MOVE - flags |= MS_MOVE; -#else - fprintf(stderr, - "option 'm' (MS_MOVE) not supported\n"); -#endif - 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': - print_cifs_mount_version(); - exit (0); - case 'w': - flags &= ~MS_RDONLY; - break; - case 'R': - rsize = atoi(optarg) ; - break; - case 'W': - wsize = atoi(optarg); - break; - case '1': - if (isdigit(*optarg)) { - char *ep; - - uid = strtoul(optarg, &ep, 10); - if (*ep) { - fprintf(stderr, "bad uid value \"%s\"\n", optarg); - exit(EX_USAGE); - } - } else { - struct passwd *pw; - - if (!(pw = getpwnam(optarg))) { - fprintf(stderr, "bad user name \"%s\"\n", optarg); - exit(EX_USAGE); - } - uid = pw->pw_uid; - endpwent(); - } - break; - case '2': - if (isdigit(*optarg)) { - char *ep; - - gid = strtoul(optarg, &ep, 10); - if (*ep) { - fprintf(stderr, "bad gid value \"%s\"\n", optarg); - exit(EX_USAGE); - } - } else { - struct group *gr; - - if (!(gr = getgrnam(optarg))) { - fprintf(stderr, "bad user name \"%s\"\n", optarg); - exit(EX_USAGE); - } - gid = gr->gr_gid; - endpwent(); - } - break; - case 'u': - got_user = 1; - user_name = optarg; - break; - case 'd': - domain_name = optarg; /* BB fix this - currently ignored */ - got_domain = 1; - break; - case 'p': - if(mountpassword == NULL) - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - if(mountpassword) { - got_password = 1; - strlcpy(mountpassword,optarg,MOUNT_PASSWD_SIZE+1); - } - break; - case 'S': - get_password_from_file(0 /* stdin */,NULL); - break; - case 't': - break; - case 'f': - ++fakemnt; - break; - default: - fprintf(stderr, "unknown mount option %c\n",c); - mount_cifs_usage(stderr); - } - } - - if((argc < 3) || (dev_name == NULL) || (mountpoint == NULL)) { - mount_cifs_usage(stderr); - } - - /* make sure mountpoint is legit */ - rc = chdir(mountpoint); - if (rc) { - fprintf(stderr, "Couldn't chdir to %s: %s\n", mountpoint, - strerror(errno)); - rc = EX_USAGE; - goto mount_exit; - } - - rc = check_mountpoint(thisprogram, mountpoint); - if (rc) - goto mount_exit; - - /* sanity check for unprivileged mounts */ - if (getuid()) { - rc = check_fstab(thisprogram, mountpoint, dev_name, - &orgoptions); - if (rc) - goto mount_exit; - - /* enable any default user mount flags */ - flags |= CIFS_SETUID_FLAGS; - } - - if (getenv("PASSWD")) { - if(mountpassword == NULL) - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - if(mountpassword) { - strlcpy(mountpassword,getenv("PASSWD"),MOUNT_PASSWD_SIZE+1); - 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)) { - rc = EX_USAGE; - goto mount_exit; - } - - if (getuid()) { -#if !CIFS_LEGACY_SETUID_CHECK - if (!(flags & (MS_USERS|MS_USER))) { - fprintf(stderr, "%s: permission denied\n", thisprogram); - rc = EX_USAGE; - goto mount_exit; - } -#endif /* !CIFS_LEGACY_SETUID_CHECK */ - - if (geteuid()) { - fprintf(stderr, "%s: not installed setuid - \"user\" " - "CIFS mounts not supported.", - thisprogram); - rc = EX_FAIL; - goto mount_exit; - } - } - - flags &= ~(MS_USERS|MS_USER); - - addrhead = addr = parse_server(&share_name); - if((addrhead == NULL) && (got_ip == 0)) { - fprintf(stderr, "No ip address specified and hostname not found\n"); - rc = EX_USAGE; - goto mount_exit; - } - - /* BB save off path and pop after mount returns? */ - resolved_path = (char *)malloc(PATH_MAX+1); - if (!resolved_path) { - fprintf(stderr, "Unable to allocate memory.\n"); - rc = EX_SYSERR; - goto mount_exit; - } - - /* 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(".", resolved_path)) { - fprintf(stderr, "Unable to resolve %s to canonical path: %s\n", - mountpoint, strerror(errno)); - rc = EX_SYSERR; - goto mount_exit; - } - - mountpoint = resolved_path; - - if(got_user == 0) { - /* Note that the password will not be retrieved from the - USER env variable (ie user%password form) as there is - already a PASSWD environment varaible */ - if (getenv("USER")) - user_name = strdup(getenv("USER")); - if (user_name == NULL) - user_name = getusername(); - got_user = 1; - } - - if(got_password == 0) { - char *tmp_pass = getpass("Password: "); /* BB obsolete sys call but - no good replacement yet. */ - mountpassword = (char *)calloc(MOUNT_PASSWD_SIZE+1,1); - if (!tmp_pass || !mountpassword) { - fprintf(stderr, "Password not entered, exiting\n"); - exit(EX_USAGE); - } - strlcpy(mountpassword, tmp_pass, MOUNT_PASSWD_SIZE+1); - 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; - else { - fprintf(stderr, "No server share name specified\n"); - fprintf(stderr, "\nMounting the DFS root for server not implemented yet\n"); - exit(EX_USAGE); - } - if(user_name) - optlen += strlen(user_name) + 6; - optlen += MAX_ADDRESS_LEN + 4; - if(mountpassword) - optlen += strlen(mountpassword) + 6; -mount_retry: - SAFE_FREE(options); - options_size = optlen + 10 + DOMAIN_SIZE; - options = (char *)malloc(options_size /* space for commas in password */ + 8 /* space for domain= , domain name itself was counted as part of the length username string above */); - - if(options == NULL) { - fprintf(stderr, "Could not allocate memory for mount options\n"); - exit(EX_SYSERR); - } - - strlcpy(options, "unc=", options_size); - strlcat(options,share_name,options_size); - /* scan backwards and reverse direction of slash */ - temp = strrchr(options, '/'); - if(temp > options + 6) - *temp = '\\'; - if(user_name) { - /* check for syntax like user=domain\user */ - if(got_domain == 0) - domain_name = check_for_domain(&user_name); - strlcat(options,",user=",options_size); - strlcat(options,user_name,options_size); - } - if(retry == 0) { - if(domain_name) { - /* extra length accounted for in option string above */ - strlcat(options,",domain=",options_size); - strlcat(options,domain_name,options_size); - } - } - - strlcat(options,",ver=",options_size); - strlcat(options,MOUNT_CIFS_VERSION_MAJOR,options_size); - - if(orgoptions) { - strlcat(options,",",options_size); - strlcat(options,orgoptions,options_size); - } - if(prefixpath) { - strlcat(options,",prefixpath=",options_size); - strlcat(options,prefixpath,options_size); /* no need to cat the / */ - } - - /* convert all '\\' to '/' in share portion so that /proc/mounts looks pretty */ - replace_char(dev_name, '\\', '/', strlen(share_name)); - - if (!got_ip && addr) { - strlcat(options, ",ip=", options_size); - current_len = strnlen(options, options_size); - optionstail = options + current_len; - switch (addr->ai_addr->sa_family) { - case AF_INET6: - addr6 = (struct sockaddr_in6 *) addr->ai_addr; - ipaddr = inet_ntop(AF_INET6, &addr6->sin6_addr, optionstail, - options_size - current_len); - break; - case AF_INET: - addr4 = (struct sockaddr_in *) addr->ai_addr; - ipaddr = inet_ntop(AF_INET, &addr4->sin_addr, optionstail, - options_size - current_len); - break; - default: - ipaddr = NULL; - } - - /* if the address looks bogus, try the next one */ - if (!ipaddr) { - addr = addr->ai_next; - if (addr) - goto mount_retry; - rc = EX_SYSERR; - goto mount_exit; - } - } - - if (addr->ai_addr->sa_family == AF_INET6 && addr6->sin6_scope_id) { - strlcat(options, "%", options_size); - current_len = strnlen(options, options_size); - optionstail = options + current_len; - snprintf(optionstail, options_size - current_len, "%u", - addr6->sin6_scope_id); - } - - if(verboseflag) - fprintf(stderr, "\nmount.cifs kernel mount options: %s", options); - - if (mountpassword) { - /* - * Commas have to be doubled, or else they will - * look like the parameter separator - */ - if(retry == 0) - check_for_comma(&mountpassword); - strlcat(options,",pass=",options_size); - strlcat(options,mountpassword,options_size); - if (verboseflag) - fprintf(stderr, ",pass=********"); - } - - if (verboseflag) - fprintf(stderr, "\n"); - - rc = check_mtab(thisprogram, dev_name, mountpoint); - if (rc) - goto mount_exit; - - if (!fakemnt && mount(dev_name, ".", cifs_fstype, flags, options)) { - switch (errno) { - case ECONNREFUSED: - case EHOSTUNREACH: - if (addr) { - addr = addr->ai_next; - if (addr) - goto mount_retry; - } - break; - case ENODEV: - fprintf(stderr, "mount error: cifs filesystem not supported by the system\n"); - break; - case ENXIO: - if(retry == 0) { - retry = 1; - if (uppercase_string(dev_name) && - uppercase_string(share_name) && - uppercase_string(prefixpath)) { - fprintf(stderr, "retrying with upper case share name\n"); - goto mount_retry; - } - } - } - fprintf(stderr, "mount error(%d): %s\n", errno, strerror(errno)); - fprintf(stderr, "Refer to the mount.cifs(8) manual page (e.g. man " - "mount.cifs)\n"); - rc = EX_FAIL; - goto mount_exit; - } - - if (nomtab) - goto mount_exit; - atexit(unlock_mtab); - rc = lock_mtab(); - if (rc) { - fprintf(stderr, "cannot lock mtab"); - goto mount_exit; - } - pmntfile = setmntent(MOUNTED, "a+"); - if (!pmntfile) { - fprintf(stderr, "could not update mount table\n"); - unlock_mtab(); - rc = EX_FILEIO; - goto mount_exit; - } - mountent.mnt_fsname = dev_name; - mountent.mnt_dir = mountpoint; - mountent.mnt_type = (char *)(void *)cifs_fstype; - mountent.mnt_opts = (char *)malloc(220); - if(mountent.mnt_opts) { - char * mount_user = getusername(); - memset(mountent.mnt_opts,0,200); - if(flags & MS_RDONLY) - strlcat(mountent.mnt_opts,"ro",220); - else - strlcat(mountent.mnt_opts,"rw",220); - if(flags & MS_MANDLOCK) - strlcat(mountent.mnt_opts,",mand",220); - if(flags & MS_NOEXEC) - strlcat(mountent.mnt_opts,",noexec",220); - if(flags & MS_NOSUID) - strlcat(mountent.mnt_opts,",nosuid",220); - if(flags & MS_NODEV) - strlcat(mountent.mnt_opts,",nodev",220); - if(flags & MS_SYNCHRONOUS) - strlcat(mountent.mnt_opts,",sync",220); - if(mount_user) { - if(getuid() != 0) { - strlcat(mountent.mnt_opts, - ",user=", 220); - strlcat(mountent.mnt_opts, - mount_user, 220); - } - } - } - mountent.mnt_freq = 0; - mountent.mnt_passno = 0; - rc = addmntent(pmntfile,&mountent); - endmntent(pmntfile); - unlock_mtab(); - SAFE_FREE(mountent.mnt_opts); - if (rc) - rc = EX_FILEIO; -mount_exit: - if(mountpassword) { - int len = strlen(mountpassword); - memset(mountpassword,0,len); - SAFE_FREE(mountpassword); - } - - if (addrhead) - freeaddrinfo(addrhead); - SAFE_FREE(options); - SAFE_FREE(orgoptions); - SAFE_FREE(resolved_path); - SAFE_FREE(share_name); - exit(rc); -} |