static void
_eeze_mount_unlock_mtab(void)
{
// DBG("Unlocking mlock: %s", mnt_lock_get_linkfile(_eeze_mtab_lock));
if (_mtab_locked) mnt_unlock_file(_eeze_mtab_lock);
_mtab_locked = EINA_FALSE;
}
static int update_modify_target(struct libmnt_update *upd, struct libmnt_lock *lc)
{
struct libmnt_table *tb = NULL;
int rc = 0;
DBG(UPDATE, mnt_debug_h(upd, "%s: modify target", upd->filename));
if (lc)
rc = mnt_lock_file(lc);
if (rc)
return rc;
tb = __mnt_new_table_from_file(upd->filename,
upd->userspace_only ? MNT_FMT_UTAB : MNT_FMT_MTAB);
if (tb) {
struct libmnt_fs *cur = mnt_table_find_target(tb,
mnt_fs_get_srcpath(upd->fs), MNT_ITER_BACKWARD);
if (cur) {
rc = mnt_fs_set_target(cur, mnt_fs_get_target(upd->fs));
if (!rc)
rc = update_table(upd, tb);
}
}
if (lc)
mnt_unlock_file(lc);
mnt_free_table(tb);
return rc;
}
static int update_remove_entry(struct libmnt_update *upd, struct libmnt_lock *lc)
{
struct libmnt_table *tb;
int rc = 0;
assert(upd);
assert(upd->target);
DBG(UPDATE, mnt_debug_h(upd, "%s: remove entry", upd->filename));
if (lc)
rc = mnt_lock_file(lc);
if (rc)
return rc;
tb = __mnt_new_table_from_file(upd->filename,
upd->userspace_only ? MNT_FMT_UTAB : MNT_FMT_MTAB);
if (tb) {
struct libmnt_fs *rem = mnt_table_find_target(tb, upd->target, MNT_ITER_BACKWARD);
if (rem) {
mnt_table_remove_fs(tb, rem);
rc = update_table(upd, tb);
mnt_free_fs(rem);
}
}
if (lc)
mnt_unlock_file(lc);
mnt_free_table(tb);
return rc;
}
static int update_add_entry(struct libmnt_update *upd, struct libmnt_lock *lc)
{
struct libmnt_table *tb;
int rc = 0;
assert(upd);
assert(upd->fs);
DBG(UPDATE, mnt_debug_h(upd, "%s: add entry", upd->filename));
if (lc)
rc = mnt_lock_file(lc);
if (rc)
return rc;
tb = __mnt_new_table_from_file(upd->filename,
upd->userspace_only ? MNT_FMT_UTAB : MNT_FMT_MTAB);
if (tb) {
struct libmnt_fs *fs = mnt_copy_fs(NULL, upd->fs);
if (!fs)
rc = -ENOMEM;
else {
mnt_table_add_fs(tb, fs);
rc = update_table(upd, tb);
}
}
if (lc)
mnt_unlock_file(lc);
mnt_free_table(tb);
return rc;
}
int zuluCrypRemoveEntryFromMtab( const char * m_point )
{
#if USE_NEW_LIBMOUNT_API
struct libmnt_lock * lock ;
#else
mnt_lock * lock ;
#endif
struct mntent * mt ;
FILE * f ;
FILE * g ;
size_t dir_len = strlen( m_point ) ;
int h ;
lock = mnt_new_lock( "/etc/mtab~",getpid() ) ;
f = setmntent( "/etc/mtab","r" ) ;
if( mnt_lock_file( lock ) != 0 ){
h = 4 ;
}else{
g = setmntent( "/etc/mtab-zuluCrypt","w" ) ;
while( ( mt = getmntent( f ) ) != NULL ){
if( StringPrefixMatch( mt->mnt_dir,m_point,dir_len ) ){
/*
* an entry we want to delete,skip it
*/
;
}else{
addmntent( g,mt ) ;
}
}
endmntent( g ) ;
rename( "/etc/mtab-zuluCrypt","/etc/mtab" ) ;
chown( "/etc/mtab",0,0 ) ;
chmod( "/etc/mtab",S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH ) ;
mnt_unlock_file( lock ) ;
h = 0 ;
}
endmntent( f ) ;
mnt_free_lock( lock ) ;
return h ;
}
static int update_modify_options(struct libmnt_update *upd, struct libmnt_lock *lc)
{
struct libmnt_table *tb = NULL;
int rc = 0;
struct libmnt_fs *fs;
assert(upd);
assert(upd->fs);
DBG(UPDATE, mnt_debug_h(upd, "%s: modify options", upd->filename));
fs = upd->fs;
if (lc)
rc = mnt_lock_file(lc);
if (rc)
return rc;
tb = __mnt_new_table_from_file(upd->filename,
upd->userspace_only ? MNT_FMT_UTAB : MNT_FMT_MTAB);
if (tb) {
struct libmnt_fs *cur = mnt_table_find_target(tb,
mnt_fs_get_target(fs),
MNT_ITER_BACKWARD);
if (cur) {
if (upd->userspace_only)
rc = mnt_fs_set_attributes(cur, mnt_fs_get_attributes(fs));
if (!rc)
rc = mnt_fs_set_options(cur, mnt_fs_get_options(fs));
if (!rc)
rc = update_table(upd, tb);
}
}
if (lc)
mnt_unlock_file(lc);
mnt_free_table(tb);
return rc;
}
