summaryrefslogtreecommitdiffstats
path: root/client/mount.cifs.c
diff options
context:
space:
mode:
Diffstat (limited to 'client/mount.cifs.c')
-rw-r--r--client/mount.cifs.c1779
1 files changed, 0 insertions, 1779 deletions
diff --git a/client/mount.cifs.c b/client/mount.cifs.c
deleted file mode 100644
index d307f4f0120..00000000000
--- 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);
-}
generated by cgit (git 2.34.1) at 2024-11-19 22:43:19 +0000