Commit Graph

111 Commits

Author SHA1 Message Date
thorpej 5759456a18 Avoid confict with reserved identifier "log". 2002-12-06 01:43:18 +00:00
provos fec70f4a84 typos; fgsch@olimpo.com.br 2002-12-05 19:33:39 +00:00
provos e9f87b6c2c better parsing of # comments 2002-12-04 03:19:05 +00:00
provos da50ee4397 prevent attempt to use in-kernel fastpath for aliased system calls. 2002-11-25 06:25:09 +00:00
provos 048da773ed error messages need to go to stderr 2002-11-23 17:42:45 +00:00
provos 49d6b23841 check for trans_size is not needed. 2002-11-15 21:36:25 +00:00
provos 695ad5ee17 add support for regular expressions to be more flexible with policy string
matching.
2002-11-02 20:04:20 +00:00
provos c27faa29c9 performance improvement by omitting a redundant getcwd. 2002-11-02 19:57:02 +00:00
provos 98c03e54fd register pidname and signame translation for kill(2) 2002-11-02 19:49:21 +00:00
provos c989923700 rename exported variables to avoid name space polution. 2002-11-02 19:43:27 +00:00
provos e93fe1e2ba NULL to 0; from navin@gdit.iiit.net 2002-11-02 16:27:46 +00:00
itojun 8b5e86873c typo, reported by avsm@openbsd 2002-10-31 23:01:27 +00:00
provos 5f7d4eab6c fix bug in determining execve name 2002-10-30 17:39:34 +00:00
provos e9ac78c504 allow empty string 2002-10-29 15:44:38 +00:00
provos 4df7def23e missing break; from grange@rt.mipt.ru 2002-10-28 16:50:05 +00:00
jdolecek 196f994fd8 use .Nx 2.0 consistently in HISTORY section
add .\" NEXTRELEASE tag before the .Nx to make it possible to quickly
  find version references in case this would need to be changed
2002-10-23 09:44:35 +00:00
provos 04a469212b cleanup 2002-10-17 04:45:04 +00:00
itojun 553d79070e \n before new sentence. 2002-10-16 14:58:33 +00:00
itojun e8745f23b6 sync better w/ openbsd tree (cosmetic) 2002-10-16 14:56:11 +00:00
provos 690d7c3ad0 fix type; its "as :group" 2002-10-11 23:31:00 +00:00
provos 61e8c76047 support for privilege elevation.
with privilege elevation no suid or sgid binaries are necessary any
longer.  Applications can be executed completely unprivileged. Systrace
raises the privileges for a single system call depending on the
configured policy.

Idea from discussions with Perry Metzger, Dug Song and Marcus Watts.
Approved by christos and thorpej.
2002-10-11 21:54:55 +00:00
provos 931062ce16 translation for socket system call 2002-10-11 04:40:11 +00:00
provos 1b3623c27a correctly evaluate group predicates 2002-10-10 14:06:30 +00:00
provos 306becc9b9 add A to usage; noted by nickus@mpi-cbg.de 2002-10-08 14:50:57 +00:00
provos 89afc325c0 predicates are part of the grammar now; in non-root case, predicates are
evaluated only once; in root case, predicates and variable expansion are
dynamic.
2002-10-08 14:49:23 +00:00
itojun ed21532463 "output" is a pointer of size "outlen", so use outlen instead of
sizeof(output)

From: "Vincent Labrecque" <vincent@psyfreaks.ca>
2002-10-08 02:47:59 +00:00
provos 4b7278c7f2 use FNM_LEADING_DIR 2002-10-06 03:16:25 +00:00
provos 9008ac33c8 assume that inserting a template implies permit for the current syscall 2002-10-06 01:28:55 +00:00
provos a79af4d624 fix return value; from marius@umich.edu 2002-09-28 17:56:54 +00:00
wiz 14dfaa4b03 New policy: New sentences start on a new line.
Patches by Robert Elz <kre at munnari oz au>, with minimal changes by me.
2002-09-25 15:18:36 +00:00
itojun d584f0a0fc support for templates. they allow fast generation of new policies. an
appropriate template can be inserted during initial policy generation.
from provos
2002-09-23 04:35:41 +00:00
itojun ca5a36677b split white space and single line policy processing into separate
functions.  from provos
2002-09-17 05:07:21 +00:00
itojun 0b2d2fe3d7 daemon should not change the directory. from provos 2002-09-17 04:54:36 +00:00
itojun c1261b4aff periodically save policies that have been modified. from provos
>here is a diff that will cause systrace to periodically save policies
>that have been modified.  Useful if you run systrace on an xterm and
>kill it accidently.  Or other applications like opera that are long
>running and can cause weird crashes.
2002-09-16 04:31:46 +00:00
itojun c81b949059 allow # in system call name. remove trailing white space.
from provos
2002-08-30 17:09:31 +00:00
itojun b6aefbe19f sync with latest systrace in openbsd tree. improved systrace with chroot. 2002-08-28 03:52:44 +00:00
lukem 146a774973 Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path (etc). 2002-08-19 09:56:00 +00:00
soren 236006d5dc Remove extraneous \n's in {err,warn}{,x} that used to be printfs. 2002-08-08 13:24:12 +00:00
itojun 95c7243aec more effort to make it compile on platforms w/o linux emul 2002-08-02 14:29:34 +00:00
itojun 71a4240254 aenable linux systrace only on platforms that support it.
noted by hannken@eis.cs.tu-bs.de
2002-08-01 08:47:03 +00:00
itojun 2b8709b902 backout previous. mandoc(4) lies. 2002-07-31 00:28:02 +00:00
itojun 822deb809a .Bd -offset does not take numeric arg, but string. 2002-07-31 00:26:56 +00:00
jdolecek bdd538626a re-apply part of rev. 1.4 - Explain why you would use this.
contrary to rev. 1.4, keep 'The options are as follows' sentence, since
this seems to be used more on system manpages
2002-07-30 21:58:25 +00:00
jdolecek e9b2b4b074 re-apply changes in rev. 1.3 - Slight changes to the English. 2002-07-30 21:43:26 +00:00
wiz 93aef72209 Sort sections, Sh -> Ss in one place. 2002-07-30 17:06:58 +00:00
itojun 4f0c9c76b6 sync up with latest openbsd systrace.
- avoid race conditions by having seqno in ioctl
- better uid/gid tracking
- "replace" policy to replace args
- less diffs, as many of local changes were fed back to openbsd already

due to the 1st item, it was impossible for us to provide backward-compatibility
(new kernel + old bin/systrace won't work).  upgrade both.
2002-07-30 16:29:28 +00:00
soren 8f6326d364 A local copy of <sys/tree.h> is unnecessary. 2002-07-30 06:09:56 +00:00
atatat 11bb544ec0 Mostly just a rewrite of intercept_run() so the arrangement of "child"
process and "parent" process is more conducive to policy generation.
Previously, tracing of a given program worked something like this:

	fork()
	if (child)
		execprogram()
	else
		dotracing()

That means that if you "systrace -a named", named would fork and
background itself, but you would never get your prompt back because
systrace didn't exit.  Now it works like this:

	fork()
	if (interactive)
		if (child)
			execprogram()
		else
			dotracing()
	else
		if (parent)
			execprogram()
		else
			fork()
			if (parent)
				exit(0)
			setsid()
			dotracing()

This makes it *much* easier to do automated policy generation for
tasks run from rc.d.  Or, for that matter, makes it much easier to use
systrace with tasks run from rc.d.
2002-07-03 22:54:38 +00:00
wiz 716daf6160 Sort sections. 2002-06-26 15:29:43 +00:00
gmcgarry 28272e6493 Explain why you would use this. Reword a little and add some history. 2002-06-26 06:50:14 +00:00
agc 1e4714b470 Slight changes to the English. 2002-06-20 10:07:42 +00:00
thorpej 2265b1ff78 Fix warnings on Alpha: Cast to intptr_t to extract ints stored in void *'s,
and pull in proper prototypes.
2002-06-18 21:22:45 +00:00
thorpej 44e317ae3d Do the previous slightly differently. 2002-06-18 21:21:17 +00:00
thorpej 2623bb99b9 Add an extra cast to size_t when extracting an int stored in a void *.
(XXX Gross.)
2002-06-18 21:19:59 +00:00
itojun 3196ec98ba need ${.CURDIR} for linux_syscalls.c include 2002-06-18 09:52:04 +00:00
thorpej 4192e0aa5a Fix an include snafu pointed out by Matt Thomas. 2002-06-18 02:55:19 +00:00
thorpej 873bb550a0 Some const poisoning. 2002-06-18 02:49:08 +00:00
thorpej 0e0062e921 * Use CPPFLAGS for preprocessor flags, not CFLAGS.
* Don't -I/sys -- that breaks cross-building.  Instead, use relative
  pathnames in netbsd-syscalls.c, similar to what kdump does.
* No need to explicitly CLEANFILES the generated lex/yacc results.
* No need to link against libl and liby.
2002-06-18 01:37:12 +00:00
thorpej 5a040ec813 The SYSTR_CLONE ioctl is gone, so don't use it. (The kernel clones
the systrace communication channel as needed.)
2002-06-18 01:25:04 +00:00
wiz b70e67425c No .Pp before .Sh, drop trailing space, sort sections. 2002-06-17 17:06:08 +00:00
christos 5039a9e5ee Add userland portion of systrace. 2002-06-17 16:29:07 +00:00