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Linux - ensure find_file does not follow invalid directories

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atcuno
2012-09-11 19:38:05 +00:00
parent 0ae2b04635
commit f4c765cb4e
1 changed files with 8 additions and 5 deletions
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volatility/plugins/linux/find_file.py
+8 -5
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@@ -38,7 +38,11 @@ class linux_find_file(linux_common.AbstractLinuxCommand):
self._config.add_option('INODE', short_option = 'i', default = None, help = 'inode to write to disk', action = 'store', type = 'int')
self._config.add_option('OUTFILE', short_option = 'O', default = None, help = 'output file path', action = 'store', type = 'str')
def walk_sb(self, dentry, find_file, recursive = 0, parent = ""):
def walk_sb(self, dentry, find_file, last_dentry, recursive = 0, parent = ""):
if last_dentry == None or last_dentry != dentry.v():
last_dentry = dentry
else:
return None
ret = None
@@ -53,7 +57,7 @@ class linux_find_file(linux_common.AbstractLinuxCommand):
# do not use os.path.join
# this allows us to have consistent paths from the user
new_file = parent + "/" + name
if new_file == find_file:
ret = dentry
break
@@ -61,8 +65,7 @@ class linux_find_file(linux_common.AbstractLinuxCommand):
if inode:
if linux_common.S_ISDIR(inode.i_mode):
# since the directory may already exist
ret = self.walk_sb(dentry, find_file, 1, new_file)
ret = self.walk_sb(dentry, find_file, last_dentry, 1, new_file)
if ret:
break
@@ -88,7 +91,7 @@ class linux_find_file(linux_common.AbstractLinuxCommand):
if len(path) > 1 and not path.startswith(first_dir):
continue
ret = self.walk_sb(sb.s_root, find_file)
ret = self.walk_sb(sb.s_root, find_file, None)
if ret:
break