Commit graph

129 commits

Author SHA1 Message Date
John Johansen
4a4ec1c54a Make expressing all capabilities easier
Allow the capability rule to be bare to represent all capabilities similar
to how network, and other rule types work.

  capability,

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-02-16 08:01:47 -08:00
John Johansen
18c87e98bf Enable the parser to pass the next token to be returned to the lexer
Currently the parser can not directly influence the lexer output.  This
limits the grammar and also how the parser can be invoked.  Allow the
parser to pass the next TOKEN that the lexer will return.

This is has two uses:  It allows us to trick the bison parser into having
multiple start symbols, allowing us to say invoke the parser on an
individual network or file rule.  It also allows the semantic analysis of
the parser to change the language recognized.  This can be leveraged to
overcome some of the limitation of bison's LALR parse generator.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-02-16 07:59:23 -08:00
John Johansen
def8c20168 Instead of using a special flags= token and keyword use TOK_CONDID
Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-02-16 07:53:04 -08:00
John Johansen
613997fd7e Add generic support extended conditional syntax
extended conditionals use a syntax of
    cond=value
    cond=(value1 value2)
    cond=(value1,value2)
  where the comma is optional and supported as such because the
  flags syntax used them

  The mount patch extends, and improves on this patch, the changes probably
  should have been separated out but ...

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-02-16 07:51:33 -08:00
John Johansen
eabeb4f7b3 Convert FLAGS_MODE start condition to a generic list of values start cond
Signed-off-by: John Johansen <john.johansen@canonical.com>
jj@ortho:~/apparmor/aa-test/parser$ guilt header
Convert FLAGS_MODE start condition to a generic list of values start cond

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-02-16 07:49:12 -08:00
John Johansen
ff98d79963 Rework how the lexer identifies hat names following a ^
Reworking this code is a step to getting rid of the SUB_NAME2 start
condition.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-01-02 16:49:31 -08:00
John Johansen
37e2975d4d Simple rename to reflect the ( ) are not always used by flags (in the future)
Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees@ubuntu.com>
2012-01-02 16:48:34 -08:00
John Johansen
743f84099d Allow passing of DEBUG from make into the compile
Fix the build so
    
  make DEBUG=1
    
results in a compile with DEBUG turned on.
    
Also fix build errors in the compile with DEBUG is defined
    
Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <kees.cook@canonical.com>
2011-09-01 11:57:54 -07:00
John Johansen
f69822107f Update apparmor's handling of rlimits for cpu limit and more natural units
Allow for rlimit cpu to specified which is now supported by the kernel.

Previously the rlimit units where limited to K, M, G and would fail when
KB, MB, GB where used.  Allow for both, also allow for units on lengths
of time, by specifying "seconds", "minutes", "hours".. or any unique subset
eg. "s", "sec", "m", "min", "h", "hour" ..

NOTE:
This patch does not extend rlimits to be able to handle setting of tasks
that are confined by other profiles.

 Signed-off-by: John Johansen <john.johansen@canonical.com>
2011-08-10 15:53:39 -07:00
John Johansen
77be2c450f Add the safe xtransition key word
Currently apparmor provides the unsafe keyword to indicate an xtransition
is not scrubbing its environment variables.  This can be used to be
explicit about which transition are unsafe instead of relying on people
remembering which of px Px is safe or unsafe.

Add the orthogonal keyword safe to allow specifying a transition is
safe.

Signed-off-by: John Johansen <john.johansen@canonical.com>
2010-12-20 11:58:05 -08:00
John Johansen
4eea3ae073 Make meaning of leading permissions consistent with trailing permissions
x Permissions when specified as a the start of the rule had a differnt
meaning than when they appeared at the tail of a rule.

Specifically px,cx,ux were not treated as unsafe when they appeared at
the start of the rule.
  px /foo,
instead of at the tail of the rule
  /foo px,

the keyword unsafe had to be used to force the rule to cause the x transitio
to be its unsafe variant.

Fix leading permissions so that they are consistent with file rules that
use trailing permissions.

Signed-off-by: John Johansen <john.johansen@canonical.com>
2010-12-20 11:56:57 -08:00
John Johansen
c059224811 Merge parsing of file rules with leading permissions into a single rule
Signed-off-by: John Johansen <john.johansen@canonical.com>
2010-12-20 11:56:30 -08:00
John Johansen
d4ca9f3ba0 Add profile names that are independent of attachment specification
Add the ability to specify the name and attachment of the profile
separately. It does not allow for the attachment specification to
begin with a variable however since variables in profile names is not
currently support this shouldn't be and issue.

Signed-off-by: John Johansen <john.johansen@canonical.com>
2010-12-20 11:49:42 -08:00
John Johansen
34c78d34b1 Combine hat and local profile parsing into the same base rule as profile
parsing.
2010-12-13 16:29:16 -08:00
John Johansen
7c1f5fd932 Merge profile and :namespace:profile parsing into a single rule.
clean up profile parsing by merging profile and :namespace:profile parsing
into a single rule.

This also fixes a bug where the profile	keyword was not allowed to proceed
profiles with a namespace declaration.

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-By: Steve Beattie <sbeattie@ubuntu.com>
2010-12-13 16:26:38 -08:00
Kees Cook
624aee531a Fix many compile-time warnings.
Start replacing RPM with lsb-release.
Drop old references to CVE.
Remove unused code.
2010-07-26 09:22:45 -07:00
Kees Cook
6737031eb9 hrm, since I added code, I need to update the copyright details. 2010-06-04 18:57:01 -07:00
Kees Cook
7cfc7e1133 add correct line number and filename tracking for error conditions (LP: #588014)
Bug: https://launchpad.net/bugs/588014
2010-06-04 18:47:44 -07:00
John Johansen
5709d94710 Add the ability to control how path mediation is done at the profile level 2010-02-17 12:21:52 -08:00
Steve Beattie
fd07a7b17a Remove obsolete data structure. 2010-01-07 14:15:36 -08:00
John Johansen
6998f6fc3d Add 64bit capabilities 2009-08-20 15:27:12 +00:00
John Johansen
747d7da402 Revert broken 64bit capabilities patch 2009-08-20 15:26:12 +00:00
John Johansen
c8fa7815a6 Update capabilities to support 64 bit caps 2009-07-24 23:37:03 +00:00
Steve Beattie
b8cde97ab7 Bah, the whole using linux/socket.h get AF_* tokens versus sys/socket.h
thing again. Fix to use the kernel's definition of AF_MAX in
linux/socket.h if it's larger than glibc's AF_MAX definition in
sys/socket.h and add a wrapper function so that we don't have include
af_names.h everywhere.

Also, fix memory leaks around the handling of network entries of
policies.
2009-07-24 17:24:41 +00:00
Steve Beattie
ff1dc201b1 Fix a bug where passing --Complain on the command line would override an
audit flag set in the profile(s).
2009-03-12 19:19:35 +00:00
John Johansen
77eb67b5a0 Fix problem where named execute transitions were not being applied, for hats
and local profiles.  bnc#446574
2008-11-19 14:00:06 +00:00
Steve Beattie
6cfcb1a823 Submitted By: Mario Fetka (mario dot fetka at gmail dot com)
Description: fix compile on build

Patch from Gentoo community:
  - fix up a couple of missing semicolons in syntax (bison compensates
    by emitting it's own)
  - Fix yet another variable tyop in rc.apparmor.functions
  - dump stderr of ls in rc.apparmor.functions to /dev/null
  - add an install-unknown make target
2008-11-18 17:33:38 +00:00
Steve Beattie
cc923edf3c - Add AF_ISDN to filtered list of AF tags
- Restructure filter sed script to be shorter
- Add a make check target which is equiv to make tests
2008-11-14 16:25:44 +00:00
John Johansen
8db35802f9 allow external hats to begin with ^ 2008-11-07 12:54:52 +00:00
John Johansen
6b6c57887c Reverting previous commit. 2008-11-07 01:31:19 +00:00
John Johansen
1b0dd32cca fix race condition between boot.apparmor and boot.cleanup bnc#426149 2008-11-07 01:19:55 +00:00
John Johansen
fe07cb1e6c fix miss spell word transtion bnc383310 2008-09-12 06:52:39 +00:00
John Johansen
58b8a58e86 Patch from zbyniu to allow parser to build on glibc (<2.4) 2008-06-09 21:17:41 +00:00
John Johansen
100ff7cabb Update to allow external hats by specifying the hat keyword in front of
the profile name.
2008-06-09 12:00:42 +00:00
John Johansen
d8df8830f1 add hat flag and add it automatically for embedded hats
remove hat rules
2008-06-09 11:48:13 +00:00
John Johansen
be495f2125 fix
- rc.apparmor.functions were not correctly removing profiles on replace and
  reload, also convert to using the module interface directly bypassing the
  parser.
- fix cx ->  named transitions
- fix apparmor_parser -N so that it emits hats as profiles under new kernel
  modules.  This is the correct behavior as hats are promoted to profiles.
2008-06-04 07:24:38 +00:00
John Johansen
3efb4ea353 allow bare x in named transitions 2008-04-18 00:40:40 +00:00
John Johansen
11f925abba fix named transition, enable cx to imply transition to local profile, without having to specify name 2008-04-16 06:54:51 +00:00
John Johansen
015df061e3 Named transition - but disabled due to a bug 2008-04-16 04:45:02 +00:00
John Johansen
16b5a26306 update for ptrace rules 2008-04-09 23:56:31 +00:00
John Johansen
4dd0e8ead8 allow for ptrace rules 2008-04-09 09:04:08 +00:00
John Johansen
78590d1823 allow for simpe alias rules 2008-04-09 09:03:17 +00:00
John Johansen
b742da7751 allow <= to be used instead of subset in link rules 2008-04-09 09:02:51 +00:00
John Johansen
aba82ff427 reject rlimit cpu in the parser 2008-04-07 04:26:02 +00:00
John Johansen
ecf6b55baf let a profile control a tasks rlimits 2008-04-06 18:55:46 +00:00
John Johansen
34f2c96700 let a profile set a tasks caps, similar to fscaps 2008-04-06 18:55:27 +00:00
John Johansen
13e04a9f02 update of unattached profile to require profile keyword 2008-04-06 18:54:52 +00:00
John Johansen
d4c9f0ad0c recommit namespace update to use :namespace: 2008-04-06 18:53:59 +00:00
John Johansen
c460dcc52f update change_hats rules to generate rules for all hats 2008-04-06 18:52:47 +00:00
John Johansen
5f5aeee472 Allow for profiles without attachment, ie. they don't begin with /
currently profile names can not collide with file modes nor with
keywords
2008-04-05 05:47:49 +00:00