2012-07-19 17:21:49 +00:00
|
|
|
diff --git a/sepolgen/src/sepolgen/access.py b/sepolgen/src/sepolgen/access.py
|
|
|
|
index 649735f..cf13210 100644
|
|
|
|
--- a/sepolgen/src/sepolgen/access.py
|
|
|
|
+++ b/sepolgen/src/sepolgen/access.py
|
|
|
|
@@ -87,7 +87,7 @@ class AccessVector:
|
|
|
|
self.perms = refpolicy.IdSet()
|
|
|
|
self.audit_msgs = []
|
|
|
|
self.type = audit2why.TERULE
|
|
|
|
- self.bools = []
|
|
|
|
+ self.data = []
|
|
|
|
|
|
|
|
# The direction of the information flow represented by this
|
|
|
|
# access vector - used for matching
|
|
|
|
@@ -256,7 +256,7 @@ class AccessVectorSet:
|
|
|
|
for av in l:
|
|
|
|
self.add_av(AccessVector(av))
|
|
|
|
|
|
|
|
- def add(self, src_type, tgt_type, obj_class, perms, audit_msg=None, avc_type=audit2why.TERULE, bools=[]):
|
|
|
|
+ def add(self, src_type, tgt_type, obj_class, perms, audit_msg=None, avc_type=audit2why.TERULE, data=[]):
|
|
|
|
"""Add an access vector to the set.
|
|
|
|
"""
|
|
|
|
tgt = self.src.setdefault(src_type, { })
|
|
|
|
@@ -269,7 +269,7 @@ class AccessVectorSet:
|
|
|
|
access.src_type = src_type
|
|
|
|
access.tgt_type = tgt_type
|
|
|
|
access.obj_class = obj_class
|
|
|
|
- access.bools = bools
|
|
|
|
+ access.data = data
|
|
|
|
access.type = avc_type
|
|
|
|
cls[obj_class, avc_type] = access
|
|
|
|
|
|
|
|
diff --git a/sepolgen/src/sepolgen/audit.py b/sepolgen/src/sepolgen/audit.py
|
|
|
|
index 9e2ccee..73c60f6 100644
|
|
|
|
--- a/sepolgen/src/sepolgen/audit.py
|
|
|
|
+++ b/sepolgen/src/sepolgen/audit.py
|
|
|
|
@@ -173,7 +173,6 @@ class AVCMessage(AuditMessage):
|
|
|
|
self.accesses = []
|
|
|
|
self.denial = True
|
|
|
|
self.type = audit2why.TERULE
|
|
|
|
- self.bools = []
|
|
|
|
|
|
|
|
def __parse_access(self, recs, start):
|
|
|
|
# This is kind of sucky - the access that is in a space separated
|
|
|
|
@@ -241,10 +240,12 @@ class AVCMessage(AuditMessage):
|
|
|
|
tcontext = self.tcontext.to_string()
|
|
|
|
scontext = self.scontext.to_string()
|
|
|
|
access_tuple = tuple( self.accesses)
|
|
|
|
+ self.data = []
|
|
|
|
+
|
|
|
|
if (scontext, tcontext, self.tclass, access_tuple) in avcdict.keys():
|
|
|
|
- self.type, self.bools = avcdict[(scontext, tcontext, self.tclass, access_tuple)]
|
|
|
|
+ self.type, self.data = avcdict[(scontext, tcontext, self.tclass, access_tuple)]
|
|
|
|
else:
|
|
|
|
- self.type, self.bools = audit2why.analyze(scontext, tcontext, self.tclass, self.accesses);
|
|
|
|
+ self.type, self.data = audit2why.analyze(scontext, tcontext, self.tclass, self.accesses);
|
|
|
|
if self.type == audit2why.NOPOLICY:
|
|
|
|
self.type = audit2why.TERULE
|
|
|
|
if self.type == audit2why.BADTCON:
|
|
|
|
@@ -258,7 +259,16 @@ class AVCMessage(AuditMessage):
|
|
|
|
if self.type == audit2why.BADCOMPUTE:
|
|
|
|
raise ValueError("Error during access vector computation")
|
|
|
|
|
|
|
|
- avcdict[(scontext, tcontext, self.tclass, access_tuple)] = (self.type, self.bools)
|
|
|
|
+ if self.type == audit2why.CONSTRAINT:
|
|
|
|
+ self.data = []
|
|
|
|
+ if self.scontext.user != self.tcontext.user:
|
|
|
|
+ self.data.append("user")
|
|
|
|
+ if self.scontext.role != self.tcontext.role and self.tcontext.role != "object_r":
|
|
|
|
+ self.data.append("role")
|
|
|
|
+ if self.scontext.level != self.tcontext.level:
|
|
|
|
+ self.data.append("level")
|
|
|
|
+
|
|
|
|
+ avcdict[(scontext, tcontext, self.tclass, access_tuple)] = (self.type, self.data)
|
|
|
|
|
|
|
|
class PolicyLoadMessage(AuditMessage):
|
|
|
|
"""Audit message indicating that the policy was reloaded."""
|
|
|
|
@@ -507,10 +517,10 @@ class AuditParser:
|
|
|
|
if avc_filter:
|
|
|
|
if avc_filter.filter(avc):
|
|
|
|
av_set.add(avc.scontext.type, avc.tcontext.type, avc.tclass,
|
|
|
|
- avc.accesses, avc, avc_type=avc.type, bools=avc.bools)
|
|
|
|
+ avc.accesses, avc, avc_type=avc.type, data=avc.data)
|
|
|
|
else:
|
|
|
|
av_set.add(avc.scontext.type, avc.tcontext.type, avc.tclass,
|
|
|
|
- avc.accesses, avc, avc_type=avc.type, bools=avc.bools)
|
|
|
|
+ avc.accesses, avc, avc_type=avc.type, data=avc.data)
|
|
|
|
return av_set
|
|
|
|
|
|
|
|
class AVCTypeFilter:
|
2011-08-30 20:32:33 +00:00
|
|
|
diff --git a/sepolgen/src/sepolgen/matching.py b/sepolgen/src/sepolgen/matching.py
|
|
|
|
index 1a9a3e5..d56dd92 100644
|
|
|
|
--- a/sepolgen/src/sepolgen/matching.py
|
|
|
|
+++ b/sepolgen/src/sepolgen/matching.py
|
2011-05-25 20:20:29 +00:00
|
|
|
@@ -50,7 +50,7 @@ class Match:
|
2010-05-27 21:23:08 +00:00
|
|
|
return 1
|
|
|
|
|
|
|
|
class MatchList:
|
|
|
|
- DEFAULT_THRESHOLD = 120
|
|
|
|
+ DEFAULT_THRESHOLD = 150
|
|
|
|
def __init__(self):
|
|
|
|
# Match objects that pass the threshold
|
|
|
|
self.children = []
|
2011-05-25 20:20:29 +00:00
|
|
|
@@ -63,14 +63,15 @@ class MatchList:
|
2010-05-27 21:23:08 +00:00
|
|
|
def best(self):
|
|
|
|
if len(self.children):
|
|
|
|
return self.children[0]
|
|
|
|
- else:
|
|
|
|
- return None
|
|
|
|
+ if len(self.bastards):
|
|
|
|
+ return self.bastards[0]
|
|
|
|
+ return None
|
|
|
|
|
|
|
|
def __len__(self):
|
|
|
|
# Only return the length of the matches so
|
|
|
|
# that this can be used to test if there is
|
|
|
|
# a match.
|
|
|
|
- return len(self.children)
|
|
|
|
+ return len(self.children) + len(self.bastards)
|
|
|
|
|
|
|
|
def __iter__(self):
|
|
|
|
return iter(self.children)
|
2012-07-19 17:21:49 +00:00
|
|
|
diff --git a/sepolgen/src/sepolgen/policygen.py b/sepolgen/src/sepolgen/policygen.py
|
|
|
|
index c3d665c..cc9f8ea 100644
|
|
|
|
--- a/sepolgen/src/sepolgen/policygen.py
|
|
|
|
+++ b/sepolgen/src/sepolgen/policygen.py
|
|
|
|
@@ -166,14 +166,16 @@ class PolicyGenerator:
|
|
|
|
rule.comment += "#!!!! This avc has a dontaudit rule in the current policy\n"
|
|
|
|
|
|
|
|
if av.type == audit2why.BOOLEAN:
|
|
|
|
- if len(av.bools) > 1:
|
|
|
|
- rule.comment += "#!!!! This avc can be allowed using one of the these booleans:\n# %s\n" % ", ".join(map(lambda x: x[0], av.bools))
|
|
|
|
+ if len(av.data) > 1:
|
|
|
|
+ rule.comment += "#!!!! This avc can be allowed using one of the these booleans:\n# %s\n" % ", ".join(map(lambda x: x[0], av.data))
|
|
|
|
else:
|
|
|
|
- rule.comment += "#!!!! This avc can be allowed using the boolean '%s'\n" % av.bools[0][0]
|
|
|
|
+ rule.comment += "#!!!! This avc can be allowed using the boolean '%s'\n" % av.data[0][0]
|
|
|
|
|
|
|
|
if av.type == audit2why.CONSTRAINT:
|
|
|
|
rule.comment += "#!!!! This avc is a constraint violation. You will need to add an attribute to either the source or target type to make it work.\n"
|
|
|
|
rule.comment += "#Constraint rule: "
|
|
|
|
+ for reason in av.data:
|
|
|
|
+ rule.comment += "\n#\tPossible cause source context and target context '%s' differ\b" % reason
|
|
|
|
|
|
|
|
try:
|
|
|
|
if ( av.type == audit2why.TERULE and
|
|
|
|
diff --git a/sepolgen/src/sepolgen/refpolicy.py b/sepolgen/src/sepolgen/refpolicy.py
|
2012-07-27 13:42:59 +00:00
|
|
|
index b138e3d..1399225 100644
|
2012-07-19 17:21:49 +00:00
|
|
|
--- a/sepolgen/src/sepolgen/refpolicy.py
|
|
|
|
+++ b/sepolgen/src/sepolgen/refpolicy.py
|
2012-07-27 13:42:59 +00:00
|
|
|
@@ -363,7 +363,10 @@ class Role(Leaf):
|
|
|
|
self.types = IdSet()
|
|
|
|
|
|
|
|
def to_string(self):
|
|
|
|
- return "role %s types %s;" % (self.role, self.types.to_comma_str())
|
|
|
|
+ s = ""
|
|
|
|
+ for t in self.types:
|
|
|
|
+ s += "role %s types %s;\n" % (self.role, t)
|
|
|
|
+ return s
|
|
|
|
|
|
|
|
class Type(Leaf):
|
|
|
|
def __init__(self, name="", parent=None):
|
|
|
|
@@ -511,7 +514,10 @@ class RoleType(Leaf):
|
|
|
|
self.types = IdSet()
|
|
|
|
|
|
|
|
def to_string(self):
|
|
|
|
- return "role %s types %s;" % (self.role, self.types.to_comma_str())
|
|
|
|
+ s = ""
|
|
|
|
+ for t in self.types:
|
|
|
|
+ s += "role %s types %s;\n" % (self.role, t)
|
|
|
|
+ return s
|
|
|
|
|
|
|
|
class ModuleDeclaration(Leaf):
|
|
|
|
def __init__(self, parent=None):
|
|
|
|
@@ -799,7 +805,7 @@ class Require(Leaf):
|
2012-07-19 17:21:49 +00:00
|
|
|
self.types = IdSet()
|
|
|
|
self.obj_classes = { }
|
|
|
|
self.roles = IdSet()
|
|
|
|
- self.bools = IdSet()
|
|
|
|
+ self.data = IdSet()
|
|
|
|
self.users = IdSet()
|
|
|
|
|
|
|
|
def add_obj_class(self, obj_class, perms):
|
2012-07-27 13:42:59 +00:00
|
|
|
@@ -816,7 +822,7 @@ class Require(Leaf):
|
2012-07-19 17:21:49 +00:00
|
|
|
s.append("\tclass %s %s;" % (obj_class, perms.to_space_str()))
|
|
|
|
for role in self.roles:
|
|
|
|
s.append("\trole %s;" % role)
|
|
|
|
- for bool in self.bools:
|
|
|
|
+ for bool in self.data:
|
|
|
|
s.append("\tbool %s;" % bool)
|
|
|
|
for user in self.users:
|
|
|
|
s.append("\tuser %s;" % user)
|