Dmitry Vyukov
9f9ae3fcc3
tools/syz-upgrade: helper tool for corpus format upgrades
2015-12-28 12:49:19 +01:00
Dmitry Vyukov
7aee64145f
host: detect more unsupported syscalls
2015-12-28 10:45:30 +01:00
Dmitry Vyukov
4d3db6d4c8
host: detect unsupported syscalls
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Also detect transitively unsupported syscalls,
that is, syscalls for which all syscalls that can create
input arguments are disabled.
2015-12-27 12:20:00 +01:00
Dmitry Vyukov
524a2ae38f
sysgen: fix syscall number assignment for syzkalls
2015-12-24 21:27:21 +01:00
Dmitry Vyukov
a9a7744776
executor: get rid of sigtimedwait
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Wait with spin loop instead.
See the comment for explanation.
2015-12-24 20:29:48 +01:00
Dmitry Vyukov
293e915415
vm: fix crash message extraction regexp
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First, "cut here" is not interesting as it always follows
by a more descriptive message.
Unreferenced object is interesting.
Also, strip \r at the end.
Add a test.
2015-12-24 19:55:19 +01:00
Dmitry Vyukov
d9b493f203
executor: don't use WUNTRACED in wait
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WUNTRACED wait returns when child has stopped.
That's not what we want to wait for.
If it's stopped we need to timeout wait and kill
the stopped child.
2015-12-24 19:14:15 +01:00
Dmitry Vyukov
af4e0c0b7a
sysgen: pull in syscall numbers from kernel headers
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Syscall numbers for different architectures are now pulled in
from kernel headers. This solves 2 problems:
- we don't need to hardcode numbers for new syscalls (that don't present in typical distro headers)
- we have correct number for different archs (previously hardcoded numbers were for x86_64)
This also makes syscall numbers available for Go code, which can be useful.
2015-12-24 19:13:08 +01:00
Dmitry Vyukov
4961230857
syz-manager: filter out programs with disabled syscalls from corpus
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Fixes #9
2015-12-24 12:21:01 +01:00
Dmitry Vyukov
80d60f7305
tools/syz-repro: fix repeat multiplier
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For loop already increases multiplier on exit,
so additional incrase is not necessary.
2015-12-24 12:06:15 +01:00
Dmitry Vyukov
05b38edce2
vm/qemu: fix output reading bug
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If qemu boot retries several times due to busy tcp port,
it ends up with several output reading goroutines.
That completely messes output.
2015-12-24 12:06:04 +01:00
Dmitry Vyukov
58509c75a2
prog: remove padding checking
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So far it has found only false positives.
Let's leave this to KMSAN.
2015-12-23 19:58:15 +01:00
Dmitry Vyukov
0785179903
prog: fix parse test
2015-12-23 19:47:20 +01:00
Dmitry Vyukov
8922bd4029
update documentation
2015-12-23 19:33:12 +01:00
Dmitry Vyukov
d4180ca5c7
tools/syz-repro: add reproduction tool
2015-12-23 19:19:45 +01:00
Dmitry Vyukov
546347d931
all: reformat
2015-12-23 19:18:58 +01:00
Dmitry Vyukov
1c801e8512
prog: factor out execution log parsing functionality
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It will be needed to reproduction tool.
2015-12-23 19:18:13 +01:00
Dmitry Vyukov
2eb388c0f8
vm: improve VM interface
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Current interface is suitable only for running syz-fuzzer.
Make the interface more generic (boot, copy file, run an arbitrary command).
This allows to build other tools on top of vm package
(e.g. reproducer creation).
2015-12-23 19:12:45 +01:00
Dmitry Vyukov
5c0a662198
sys: fix padding insertion
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Padding was not inserted into indirect structs.
2015-12-23 19:10:41 +01:00
Dmitry Vyukov
7f3186abbb
execprog: detect executor-detected bugs
2015-12-23 19:09:48 +01:00
Dmitry Vyukov
47e55508d0
sys: sort new syscalls
2015-12-23 19:09:24 +01:00
Dmitry Vyukov
b4e2d91732
sys: expose new syscall numbers programmatically
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This will be required for reproduction tool.
2015-12-23 19:05:15 +01:00
Dmitry Vyukov
1f580dac3d
fileutil: new package
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Move some file utilities into a separate package.
2015-12-23 13:59:29 +01:00
Dmitry Vyukov
2fa51b4807
executor: fix collide mode
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Don't wait for every other call.
2015-12-23 13:50:40 +01:00
Dmitry Vyukov
c896644ab8
csource: reformat
2015-12-23 13:50:02 +01:00
Dmitry Vyukov
28571fdc32
prog: glue mmap's together during minimization
2015-12-23 13:47:45 +01:00
Dmitry Vyukov
6af1c1f308
execprog: replace loop flag with repeat
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This will be necessary for reproduction tool.
It needs to run a program a fixed number of times
instead of loop infinitely.
2015-12-23 13:39:14 +01:00
Dmitry Vyukov
e253cbc79f
csource: new package
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Move C source generation into a separate package.
Prog is too bloated already.
2015-12-23 13:38:31 +01:00
Dmitry Vyukov
071ad4e91f
sys: fix AT_FDCWD handling
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AT_FDCWD is not a flag, it is an fd.
2015-12-23 13:36:13 +01:00
Dmitry Vyukov
def15a423d
Merge pull request #8 from daviddrysdale/doc-update
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Minor tweaks
2015-12-21 14:41:57 +01:00
David Drysdale
27e09c9145
Add 'all-tools' target to build tools
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Also remove leftover mention of 'master'
2015-12-21 13:29:09 +00:00
David Drysdale
be3db30b0b
Update docs for rename and removal of master
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Updated process structure diagram, fix a few mentions of
old setup in README.
2015-12-21 12:37:04 +00:00
David Drysdale
58359bf421
Add David Drysdale to CONTRIBUTORS
2015-12-21 12:15:03 +00:00
Dmitry Vyukov
bd75706280
add a flag to disable setpgid syscall
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It is broken on some of our test systems.
2015-12-17 17:31:11 +01:00
Dmitry Vyukov
bbf4e35323
executor: export syscall execution results
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Errno can be used to guide fuzzing, or detect not implemented syscalls.
2015-12-17 17:31:11 +01:00
Dmitry Vyukov
bfc05fb926
manager: fix persistent corpus minimization
2015-12-17 17:31:11 +01:00
Dmitry Vyukov
7b5574e9d7
rpctype: remove master messages
2015-12-17 17:31:11 +01:00
Dmitry Vyukov
f2ec18c03e
Update README.md
2015-12-17 16:21:46 +01:00
Dmitry Vyukov
6f03b80329
Update README.md
2015-12-17 16:20:12 +01:00
Dmitry Vyukov
8e7ca7c5ff
remove master and naming overhaul
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Remove master process entirely, it is not useful in its current form.
We first need to understand what we want from it, and them re-implement it.
Prefix all binaries with syz- to avoid name clashes.
2015-12-17 16:06:33 +01:00
Dmitry Vyukov
06e6726537
sys: fix typos
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
41126671ec
manager: allow to run fuzzer under root
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
72742865dd
sys: add bluetooth support
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
d665e11e9d
move Gate type to ipc package and use it in stress tool
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This allows to print what programs stress executes.
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
ce0bb4c05d
ipc: fix removal of temp dir if chmod fails
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
3d96383e0e
executor: allow to wait for child processes without sigtimedwait
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We've hit 2 systems that mishandle sigtimedwait.
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
6f71e5dce1
sys: add PF_NFC support
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
6922b20d36
sys: workaround Go compiler bug
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see http://golang.org/issue/13579
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
9980a72713
sys: automatically add padding to structs
2015-12-17 14:38:46 +01:00
Dmitry Vyukov
48d0a3662e
tools/stress: minor improvements
2015-12-17 14:38:46 +01:00
