This allows sepolgen to generate policy from AVC messages that contain
contexts translated by mcstrans.
Fixes:
\# echo "type=USER_AVC msg=audit(1468415802.940:2199604): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0-s15:c0.c1023 msg='avc: denied { status } for auid=n/a uid=0 gid=0 cmdline="/usr/lib/systemd/systemd-logind" scontext=system_u:system_r:systemd_logind_t:SystemLow-SystemHigh tcontext=system_u:system_r:init_t:s0-s15:c0.c1023 tclass=system exe="/usr/lib/systemd/systemd" sauid=0 hostname=? addr=? terminal=?'" | audit2allow
libsepol.mls_from_string: invalid MLS context SystemLow-SystemHigh
libsepol.mls_from_string: could not construct mls context structure
libsepol.context_from_record: could not create context structure
libsepol.context_from_string: could not create context structure
libsepol.sepol_context_to_sid: could not convert
system_u:system_r:systemd_logind_t:SystemLow-SystemHigh to sid
Signed-off-by: Vit Mojzis <vmojzis@redhat.com>
https://docs.python.org/3/whatsnew/3.6.html#deprecated-python-behavior
A backslash-character pair that is not a valid escape sequence now
generates a DeprecationWarning. Although this will eventually become a
SyntaxError, that will not be for several Python releases.
The problem appears when you use '-W error':
$ python3 -W error -c 'import re; re.findall("[^a-zA-Z0-9_\-\.]", " *%$")'
File "<string>", line 1
SyntaxError: invalid escape sequence \-
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
[ Edited commit message as per suggestion from Petr Lautrbach ]
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Strip the following characters
\x1c File Separator
\x1d Group Separator
\x1e Record Separator
\x85 Next Line (C1 Control Code)
from audit message fields to make sure they are not evaluated
as part of some identifier (eg. ausearch used insert \x1d into
--raw output resulting in "unrecognized class" error messages).
This is done as part of str.split() in python3.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1406328
