ec80e1ce63
- Catch SELINUX_ERR with audit2allow and generate policy
161 lines
5.4 KiB
Diff
161 lines
5.4 KiB
Diff
diff --exclude-from=exclude -N -u -r nsasepolgen/src/sepolgen/audit.py policycoreutils-2.0.34/sepolgen-1.0.10/src/sepolgen/audit.py
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--- nsasepolgen/src/sepolgen/audit.py 2007-09-13 08:21:11.000000000 -0400
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+++ policycoreutils-2.0.34/sepolgen-1.0.10/src/sepolgen/audit.py 2007-12-21 02:10:43.000000000 -0500
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@@ -32,7 +32,7 @@
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string contain all of the audit messages returned by ausearch.
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"""
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import subprocess
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- output = subprocess.Popen(["/sbin/ausearch", "-m", "AVC,USER_AVC,MAC_POLICY_LOAD,DAEMON_START"],
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+ output = subprocess.Popen(["/sbin/ausearch", "-m", "AVC,USER_AVC,MAC_POLICY_LOAD,DAEMON_START,SELINUX_ERR"],
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stdout=subprocess.PIPE).communicate()[0]
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return output
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@@ -251,7 +251,9 @@
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self.type = refpolicy.SecurityContext(dict["tcontext"]).type
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except:
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raise ValueError("Split string does not represent a valid compute sid message")
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-
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+ def output(self):
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+ return "role %s types %s;\n" % (self.role, self.type)
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+
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# Parser for audit messages
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class AuditParser:
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@@ -402,6 +404,26 @@
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self.__parse(l)
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self.__post_process()
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+ def to_role(self, role_filter=None):
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+ """Return list of SELINUX_ERR messages matching the specified filter
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+
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+ Filter out types that match the filer, or all roles
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+
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+ Params:
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+ role_filter - [optional] Filter object used to filter the
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+ output.
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+ Returns:
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+ Access vector set representing the denied access in the
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+ audit logs parsed by this object.
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+ """
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+ roles = []
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+ if role_filter:
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+ for selinux_err in self.compute_sid_msgs:
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+ if role_filter.filter(selinux_err):
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+ roles.append(selinux_err)
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+ return roles
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+ return self.compute_sid_msgs
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+
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def to_access(self, avc_filter=None, only_denials=True):
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"""Convert the audit logs access into a an access vector set.
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diff --exclude-from=exclude -N -u -r nsasepolgen/src/sepolgen/refparser.py policycoreutils-2.0.34/sepolgen-1.0.10/src/sepolgen/refparser.py
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--- nsasepolgen/src/sepolgen/refparser.py 2007-09-13 08:21:11.000000000 -0400
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+++ policycoreutils-2.0.34/sepolgen-1.0.10/src/sepolgen/refparser.py 2007-12-20 14:20:49.000000000 -0500
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@@ -118,6 +118,7 @@
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'TEMPLATE',
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'GEN_CONTEXT',
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# m4
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+ 'IFELSE',
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'IFDEF',
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'IFNDEF',
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'DEFINE'
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@@ -174,6 +175,7 @@
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'template' : 'TEMPLATE',
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'gen_context' : 'GEN_CONTEXT',
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# M4
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+ 'ifelse' : 'IFELSE',
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'ifndef' : 'IFNDEF',
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'ifdef' : 'IFDEF',
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'define' : 'DEFINE'
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@@ -220,6 +222,12 @@
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# Ignore all comments
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t.lexer.lineno += 1
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+def t_refpolicywarn1(t):
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+ r'define.*refpolicywarn\(.*\n'
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+ # Ignore refpolicywarn statements - they sometimes
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+ # contain text that we can't parse.
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+ t.skip(1)
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+
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def t_refpolicywarn(t):
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r'refpolicywarn\(.*\n'
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# Ignore refpolicywarn statements - they sometimes
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@@ -258,10 +266,12 @@
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m = None
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# error is either None (indicating no error) or a string error message.
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error = None
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+parse_file = ""
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# spt is the support macros (e.g., obj/perm sets) - it is an instance of
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# refpolicy.SupportMacros and should always be present during parsing
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# though it may not contain any macros.
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spt = None
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+success=True
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# utilities
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def collect(stmts, parent, val=None):
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@@ -382,6 +392,19 @@
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collect(p[12], x, val=False)
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p[0] = [x]
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+def p_ifelse(p):
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+ '''ifelse : IFELSE OPAREN TICK IDENTIFIER SQUOTE COMMA COMMA TICK IDENTIFIER SQUOTE COMMA TICK interface_stmts SQUOTE CPAREN optional_semi
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+ | IFELSE OPAREN TICK IDENTIFIER SQUOTE COMMA TICK IDENTIFIER SQUOTE COMMA TICK interface_stmts SQUOTE COMMA TICK interface_stmts SQUOTE CPAREN optional_semi
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+ '''
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+# x = refpolicy.IfDef(p[4])
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+# v = True
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+# collect(p[8], x, val=v)
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+# if len(p) > 12:
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+# collect(p[12], x, val=False)
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+# p[0] = [x]
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+ pass
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+
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+
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def p_ifdef(p):
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'''ifdef : IFDEF OPAREN TICK IDENTIFIER SQUOTE COMMA TICK interface_stmts SQUOTE CPAREN optional_semi
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| IFNDEF OPAREN TICK IDENTIFIER SQUOTE COMMA TICK interface_stmts SQUOTE CPAREN optional_semi
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@@ -446,6 +469,7 @@
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| optional_policy
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| tunable_policy
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| ifdef
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+ | ifelse
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| conditional
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'''
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p[0] = p[1]
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@@ -844,8 +868,11 @@
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def p_error(tok):
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global error
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- error = "Syntax error on line %d %s [type=%s]" % (tok.lineno, tok.value, tok.type)
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+ global parse_file
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+ global success
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+ error = "%s: Syntax error on line %d %s [type=%s]" % (parse_file, tok.lineno, tok.value, tok.type)
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print error
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+ success = False
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def prep_spt(spt):
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if not spt:
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@@ -892,7 +919,7 @@
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def list_headers(root):
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modules = []
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support_macros = None
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- blacklist = ["init.if", "inetd.if", "uml.if", "thunderbird.if"]
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+ blacklist = ["uml.if", "thunderbird.if"]
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for dirpath, dirnames, filenames in os.walk(root):
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for name in filenames:
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@@ -941,12 +968,14 @@
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output.write(msg)
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def parse_file(f, module, spt=None):
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+ global parse_file
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if debug:
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o("parsing file %s\n" % f)
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try:
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fd = open(f)
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txt = fd.read()
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fd.close()
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+ parse_file = f
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parse(txt, module, spt, debug)
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except IOError, e:
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return
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