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334 Commits

Author SHA1 Message Date
Wiktor Garbacz
2349325e2b Move root chdir to namespace setup 
PiperOrigin-RevId: 258361265
Change-Id: Ifa065559e36606afa7111ef6d8e2d5d621b57426
 2019-07-16 07:13:17 -07:00
Sandboxed API Team
418ad07086 Initialize std::atomic_flag members 
PiperOrigin-RevId: 258309720
Change-Id: Id9cb6ee627c0aea11bbbabfcab10731e2235e534
 2019-07-15 23:59:24 -07:00
Wiktor Garbacz
8a4e665cba Remove redundant process setup 
PR_SET_PDEATHSIG is already issued for init process in SanitizeCurrentProcess
Same for setsid

PiperOrigin-RevId: 258142844
Change-Id: Iad9e94bd402d576c1b24caab0b03efc50e2df07e
 2019-07-15 05:36:27 -07:00
Wiktor Garbacz
9f36bd80d2 Fix double EnableNamespaces 
PiperOrigin-RevId: 258142629
Change-Id: Ied76490e51278371fd51e117053599cce52991f1
 2019-07-15 05:34:31 -07:00
Christian Blichmann
6d33c1f908 Add CMake options to exclude examples and tests from build 
PiperOrigin-RevId: 258136393
Change-Id: Ifb2d7a24f93cd1d2782b4e4d6ac2c34a0d1c2bff
 2019-07-15 04:42:58 -07:00
Christian Blichmann
99ac7fa60d Refactor CMake files 
* Move add_sapi_library() into a build defs file
* Override protobuf_generate_cpp() instead of naming it sapi_protobuf_generate_cpp()
* Factor out inclusion/find_package() calls of external dependencies

PiperOrigin-RevId: 258133422
Change-Id: Ibdbab0c735157eac0ed6122ab78f9d583c6905cc
 2019-07-15 04:13:15 -07:00
Wiktor Garbacz
d170bc3c80 Deflake namespace_test 
When fetching exit status only lower 8-bits will be read.
Thus if getpid()&0xff == 0 the test can fail.

PiperOrigin-RevId: 257163766
Change-Id: I690c645fde33d1205578fd8873c5fc2974352ada
 2019-07-09 04:11:07 -07:00
Christian Blichmann
6d06df1b86 Break out executor into its own build target 
PiperOrigin-RevId: 257147090
Change-Id: I34c5e86ca68f865fdae42e4077c52c6168672c06
 2019-07-09 01:53:56 -07:00
Christian Blichmann
747ccb57e8 Rename stack-trace{.h,.cc,._test.cc} to use underscores 
PiperOrigin-RevId: 257144753
Change-Id: I4ce0dffad552c25b61102adfb1c03b8aea427dd9
 2019-07-09 01:32:25 -07:00
Christian Blichmann
2da6dad120 Internal change 
PiperOrigin-RevId: 257141595
Change-Id: Ic34799290fa88be62ecba38f8f60200a1e55f065
 2019-07-09 01:32:09 -07:00
Christian Blichmann
c7f7666d9d Do not leak macro definitions in stack-trace.h 
Since we use glog, we need to still rely on gFlags for as long as Abseil
logging is not yet released. To do this, we have the util/flag.h header in
SAPI, faking the newer style API of Abseil's flags library.
The rationale behind this is that glog includes/builds with gflags for
command line flag parsing and having more than one flag parsing library
active at the same time is asking for trouble.

PiperOrigin-RevId: 256982667
Change-Id: I9c5406cb9ef4458daebfec0b0713f9bddbf5c3ad
 2019-07-08 08:25:17 -07:00
Christian Blichmann
2301e05097 Follow-up to rev. 6edcf5f which introduced a build failure 
PiperOrigin-RevId: 256961234
Change-Id: I312d054c5d35413b2e6b061ddfa30c80397b19eb
 2019-07-08 05:56:36 -07:00
Sandboxed API Team
6edcf5f823 Internal change. 
PiperOrigin-RevId: 256378370
Change-Id: I1b00662a4c4c743ab79ecf35e857e4f7bc9f5e1c
 2019-07-03 09:03:38 -07:00
Kevin Hamacher
6d782dd774 Deflake custom_fork_server test 
PiperOrigin-RevId: 256149331
Change-Id: I68cfd64ee602757235e6c6d602819a79ae4826fb
 2019-07-02 05:59:25 -07:00
Christian Blichmann
4e20e0702a Use full workspace name to access Bazel packages in generator 
Since the interface generator is invoked via a Bazel macro, it will be
expanded in the embedding context of the project using SAPI, so package access
needs to go through the full workspace root @com_google_sandboxed_api.

This change also modifies the CMakeLists.txt accordingly, as the "external"
subdirectory is no longer needed/wanted.

PiperOrigin-RevId: 255918784
Change-Id: I052c687509f65fef7f011a9d1a074a171595330f
 2019-07-01 02:53:41 -07:00
Christian Blichmann
301a265c95 Make bpf_helper visible to projects using SAPI 
PiperOrigin-RevId: 255368910
Change-Id: I4f12e8d47fd747619a12d21a5be1c34d7f876b61
 2019-06-27 03:43:31 -07:00
Christian Blichmann
0c4a803527 Workaround for Bazel issue #8672 (broken fully_static_link) 
This is tracked at
https://github.com/bazelbuild/bazel/issues/8672

and should only affect the tests for now.

PiperOrigin-RevId: 254943708
Change-Id: Iee18a3b8c1b570c7d04d09d533ecff33c3de7d57
 2019-06-25 04:32:17 -07:00
Wiktor Garbacz
4b9be4e78a Fix formating 
PiperOrigin-RevId: 253196457
Change-Id: Id73a08945dedff7a116d500202355ecf266afcf3
 2019-06-14 03:01:09 -07:00
Wiktor Garbacz
605d402121 Use new function naming 
PiperOrigin-RevId: 253191002
Change-Id: If00c0effb925b3e294593f272447cd8386228bac
 2019-06-14 02:09:07 -07:00
Sandboxed API Team
970257d87b Allow two madvise calls for asan & tsan builds. 
bbfa21f177/lib/sanitizer_common/sanitizer_posix_libcdep.cc (L71)

PiperOrigin-RevId: 252048323
Change-Id: I457e708f0b024fd9db4ad39265cb904777ca52b5
 2019-06-07 07:53:10 -07:00
Christian Blichmann
dfbfb5cc43 Add CMake builds for the examples 
PiperOrigin-RevId: 252045309
Change-Id: I57ffc3debbe64010b1f20b2e6df900b9916fa37f
 2019-06-07 07:27:33 -07:00
Christian Blichmann
24c3e34344 Implement a GetDataDependencyFilepath() for CMake (non-Bazel really). 
This code assumes, like Bazel's runfiles that the data dependency to access
exists in the same sub-tree as the binary:

WORKSPACE
+- sandboxed_api/sandbox2/examples/crc4
                                   +- crc4bin
                                   +- crc4sandbox

The code requires the directory structure to exist, so that in the example
above, crc4sandbox can use
  GetDataDependencyFilepath("sandboxed_api/sandbox2/examples/crc4/crc4bin")

regardless of how it was called.

PiperOrigin-RevId: 251834480
Change-Id: I6470b62ce9b403297116481a0c17c070992f2e81
 2019-06-06 05:44:32 -07:00
Christian Blichmann
9b78e331fa Use newer gflags namespace for command-line flags 
PiperOrigin-RevId: 251639941
Change-Id: I3037ce9510a3bc62cf5c899c64f2e7d344a8b4ee
 2019-06-05 07:39:38 -07:00
Sandboxed API Team
1b2b83676b Internal Change 
PiperOrigin-RevId: 251637952
Change-Id: I532201ec1ba16a4cae71c671ffe2bd34e13a5391
 2019-06-05 07:24:16 -07:00
Christian Blichmann
ffd4e1270a Internal change 
PiperOrigin-RevId: 251590551
Change-Id: Ic69f8f5f798006c0d096357b7a746cdc4ce530a3
 2019-06-05 00:26:14 -07:00
Christian Blichmann
a3b0949949 Internal change 
PiperOrigin-RevId: 251411359
Change-Id: Ifbed8afa72d130ae803ed71a6a43ac3c9d8755f9
 2019-06-04 04:07:21 -07:00
Christian Blichmann
719cd24933 Fix sandbox2 tests when run with CTest 
This test runs, but fails due to a different problem:
  StackTraceTest.ForkEnterNsLibunwindDoesNotLeakFDs

PiperOrigin-RevId: 251218516
Change-Id: If06cdbcb71fad84ebd9d934ff173d7ef1a1eebc0
 2019-06-03 06:27:59 -07:00
Sandboxed API Team
dd2a84b980 Clarify behavior of Buffer::CreateFromFd 
PiperOrigin-RevId: 250834142
Change-Id: I7aac739c9b590adc0599926e3246bc87e21d951a
 2019-05-30 23:50:54 -07:00
Sandboxed API Team
6666f41ba2 Fix unnecessary unique_ptr in LogServer. 
PiperOrigin-RevId: 250050562
Change-Id: I6840e68504c741de1e66489279237f4a4a6bc533
 2019-05-26 08:47:38 -07:00
Wiktor Garbacz
08ff939ea7 Call DisableNamespaces where needed 
PiperOrigin-RevId: 249637351
Change-Id: I5105d89ea0e8cfb2fca1e5ac342fa67e9caac930
 2019-05-23 07:21:03 -07:00
Wiktor Garbacz
85059ef40d Add DisableNamespaces to PolicyBuilder 
Currently mostly no-op, but this is the first step to turn namespaces on
by default.

PiperOrigin-RevId: 249439158
Change-Id: I5eeb1216dc868c660f62ad50c34f626afbf7db61
 2019-05-22 06:54:12 -07:00
Wiktor Garbacz
71a317e65f Do not emit an error on ESRCH in PTRACE_CONT 
Process might be killed between waitpid and PTRACE_CONT,
even though a PTRACE_EVENT_EXIT will be gererated, continuing
will fail with ESRCH in that case.

PiperOrigin-RevId: 249245726
Change-Id: Ib673529229a306d2266fa60caa3039b6bcd80a65
 2019-05-21 07:30:56 -07:00
Wiktor Garbacz
15993a34e2 Log stack traces with INFO instead of ERROR 
PiperOrigin-RevId: 249035379
Change-Id: Ie62366f45f29741ee0c8b25369d0bb169275ccfd
 2019-05-20 06:16:50 -07:00
Wiktor Garbacz
207b2d9a95 Remove stale comment 
PiperOrigin-RevId: 248715509
Change-Id: I7aa3f4388920e39a79ac349890de403ac3384504
 2019-05-17 07:21:31 -07:00
Wiktor Garbacz
34d17b77ac Remove dead code 
IPC always creates comms object from a fd.

PiperOrigin-RevId: 248683525
Change-Id: Ib4285ec0494d551257237c12f92f983b943205cb
 2019-05-17 02:02:03 -07:00
Wiktor Garbacz
8678af23d0 Extract GetRlimitName into util 
PiperOrigin-RevId: 248682931
Change-Id: I702533a8d36465de956a1a90a40c634434b7a671
 2019-05-17 01:55:35 -07:00
Wiktor Garbacz
6e1c3c3055 Fix prlimit error message 
PiperOrigin-RevId: 248491089
Change-Id: Id4116939d02b6a592c74218955675acf2e3c70fe
 2019-05-16 02:24:59 -07:00
Wiktor Garbacz
7294e9976e Replace custom synchronization with absl::Notification 
PiperOrigin-RevId: 248334969
Change-Id: I7614a3792babd399912c5d5a167ab5e0a0574d20
 2019-05-15 08:09:56 -07:00
Wiktor Garbacz
42761c8b72 Add a resource starvation test 
PiperOrigin-RevId: 248334209
Change-Id: Iff0f0b3024c67a767c429a547695cc48a2d02a30
 2019-05-15 08:04:58 -07:00
Wiktor Garbacz
6588aa2a68 Reintroduce monitor changes. 
Signal handling in Monitor::MainLoop was fixed.

PiperOrigin-RevId: 248331692
Change-Id: I0f85d319802258632d2074742c53597bb922555a
 2019-05-15 07:46:49 -07:00
Sandboxed API Team
d8f7d861d2 Log the progress of dynamic libraries being resolved while creating a sandboxee's virtual FS chroot. This provides valuable insight while debugging problems with dynamically linked sandoxed binaries. 
PiperOrigin-RevId: 247625021
Change-Id: I9bf77af7410deb8766fd49910c8564e148020601
 2019-05-10 09:41:07 -07:00
Christian Blichmann
5f3c7171b7 Use Abseil's flag library released in aa468ad75539619b47979911297efbb629c52e44 
PiperOrigin-RevId: 247424939
Change-Id: I22a4696f705f9dcfa7394b329c78bd126f42bd16
 2019-05-09 07:57:55 -07:00
Christian Blichmann
7800fd7402 Disable compiler warnings for consistency with internal settings. 
PiperOrigin-RevId: 247405215
Change-Id: I236170f7b47d9ecd32324db907ef7afc2e797d9a
 2019-05-09 05:21:34 -07:00
Sandboxed API Team
63f0adbfbb Revert of monitor code update. 
PiperOrigin-RevId: 247255592
Change-Id: I3656ea1628418321b1b8b02660b6a51a58c2c61f
 2019-05-08 11:34:26 -07:00
Wiktor Garbacz
3f5360a7bc Simplify monitor code. 
Make setting result code the condition for main loop exit.

PiperOrigin-RevId: 247218505
Change-Id: I8699012683bc301e8a9f4f41cd5ab018e3cd514c
 2019-05-08 08:34:56 -07:00
Sandboxed API Team
f29a5a81ed Print final FS mounts in sandboxee's chroot 
After all requested filesystem mounts are fully mounted under a sandboxee's virtual chroot, print a list of the outside paths and a list of the inside chroot paths that the outside paths are mapped to. This provides a valuable insight while debugging sandboxed binaries.

PiperOrigin-RevId: 247130923
Change-Id: I42b4b3db68d826587c0fe8127aabbead38bc6f20
 2019-05-07 18:30:13 -07:00
Christian Blichmann
6bfa83befe CMake support for Sandbox2 
- Add a superbuild in cmake/SuperBuild.cmake that downloads and builds
  dependencies
- Builds for sandbox2/ and a its tests
- Helper CMake function to strip proto paths
- Module to find libcap
- Custom build for libunwind that wraps its symbols
- Fix environment so that CTest executes tests similar to Bazel
- Filewrapper functionality, like Bazel's cc_embed_data()
- Build forkserver with embedded binary
- Enable ASM language so that libunwind builds correctly
- Allow glog target to propagate transitively (to propagate its include dirs)

Signed-off-by: Christian Blichmann <cblichmann@google.com>
 2019-05-06 14:03:29 +02:00
Wiktor Garbacz
523620f8ab Internal change 
PiperOrigin-RevId: 245409785
Change-Id: I37b1611bed459522803fa1e49c4252d2cad80076
 2019-04-26 06:18:59 -07:00
Wiktor Garbacz
5e645a9190 Fix build 
PiperOrigin-RevId: 245400890
Change-Id: I899ef49edd8e371b8714478fa3c911cfb771419b
 2019-04-26 04:42:52 -07:00
Sandboxed API Team
f3c9c6e388 Internal change 
PiperOrigin-RevId: 245377524
Change-Id: If41601b2d68c6ff0f7d3f37811aac62c32441d1f
 2019-04-26 00:46:11 -07:00
Sandboxed API Team
afec50fdb5 automated internal change 
PiperOrigin-RevId: 245070237
Change-Id: Ib6b0d9201f8b603e185eb91c1bc9f500f1af1ed6
 2019-04-24 10:31:13 -07:00
Christian Blichmann
feba2c35d7 Apply special whole-archive linker options only where necessary 
PiperOrigin-RevId: 245038294
Change-Id: I99367e7c982a340a88acf730619a467d34d53203
 2019-04-24 07:07:14 -07:00
Wiktor Garbacz
c6d16a58eb Internal change 
PiperOrigin-RevId: 244882748
Change-Id: I0342f445df8f60f864d3e7f56145051b821a86e0
 2019-04-23 10:47:34 -07:00
Wiktor Garbacz
53d85ab4f2 Internal change 
PiperOrigin-RevId: 244882228
Change-Id: I506b92326fa83f214b1e7fab6c5b2e0889f8b197
 2019-04-23 10:46:58 -07:00
Wiktor Garbacz
63006c1476 Internal change 
PiperOrigin-RevId: 244881751
Change-Id: I3f3200c4d85906058ac17ed941e69ea22d9a4090
 2019-04-23 10:42:14 -07:00
Wiktor Garbacz
0fd468be7c Internal change 
PiperOrigin-RevId: 244879634
Change-Id: Ifa63ef7b0cc10e87d18f17b85cce55af03cd37cf
 2019-04-23 10:31:51 -07:00
Wiktor Garbacz
6cbaaead8b Make StatusMatcher more flexible 
PiperOrigin-RevId: 244879203
Change-Id: I5f7994130a898e84f041b18c0b5313d7e8b32780
 2019-04-23 10:30:45 -07:00
Sandboxed API Team
726b1fb451 n/a 
PiperOrigin-RevId: 244836017
Change-Id: I034cfb1af4835256aa9b8b7ac3e80a341e9a9271
 2019-04-23 05:14:22 -07:00
Kevin Hamacher
8ad4fcd0a8 minielf: Increase maximum amount of symbols loaded 
PiperOrigin-RevId: 243775723
Change-Id: I5398ec23bd76be01c48c69bd4decb015a48386fc
 2019-04-16 03:00:28 -07:00
Kevin Hamacher
af44845246 Try to demangle c++ symbols when logging the stacktrace 
PiperOrigin-RevId: 243612828
Change-Id: I09c748da0c119ba2024b2906802858b5b9bcfeb0
 2019-04-15 07:37:23 -07:00
Chris Kennelly
d90b2c6328 Allow TCMalloc to access the rseq syscall. 
PiperOrigin-RevId: 243441655
Change-Id: I82918459c20f164b56cc0c5b621b004315a011ec
 2019-04-13 13:45:35 -07:00
Chris Kennelly
e2eb0597cb Internal change 
PiperOrigin-RevId: 243440925
Change-Id: I085535962e1d754f7bc32e08b1785a574062edaa
 2019-04-13 13:45:25 -07:00
Kevin Hamacher
ac6a5dfc85 Delete copy constructor of FDCloser 
PiperOrigin-RevId: 243263443
Change-Id: If22d287ce1872ad070454824e8daa36585ab0258
 2019-04-12 07:54:31 -07:00
Wiktor Garbacz
79525950fe Add support for new SECCOMP_RET_* in disassembler 
PiperOrigin-RevId: 242642525
Change-Id: Iea9a54f01d56cadf19a020340d07c1790c858a0f
 2019-04-09 14:38:05 +02:00
Kevin Hamacher
1b50485be6 Move forkserver into a dedicated binary 
PiperOrigin-RevId: 242637894
Change-Id: I16f19d077e2b5b9d0d4ef58344d5caaef95af7c6
 2019-04-09 14:37:41 +02:00
Kevin Hamacher
e44231e28a Wrap waitpid with TEMP_FAILURE_RETRY and use __WALL to make sure we reap all children 
PiperOrigin-RevId: 242111281
Change-Id: I322623303487b0292c2aea53d6eae5d9f53d79b6
 2019-04-05 05:50:12 -07:00
Kevin Hamacher
77ad64ac30 Use high FD numbers in the forkserver to avoid collision with FDs mapped by the user 
PiperOrigin-RevId: 242106285
Change-Id: I0f4bd130f8e66e6b47ad1d7311e0fff519aa9e90
 2019-04-05 04:51:41 -07:00
Wiktor Garbacz
29fac2d393 mounts: Validate interpreter as early as possible 
PiperOrigin-RevId: 240972700
Change-Id: I9049af7d053152cebd264fbfc352d2971a06d363
 2019-03-29 07:07:55 -07:00
Sandboxed API Team
137f772f2b Allow TCMalloc to call madvise with MADV_NOHUGEPAGE 
PiperOrigin-RevId: 240555428
Change-Id: I05fd61ecd09fc0a3f76dade0341d35b04a590b90
 2019-03-27 07:40:57 -07:00
Christian Blichmann
f04be9276f Formatting fixes and include file hygiene. 
PiperOrigin-RevId: 240346890
Change-Id: I1a9617f10a62a848b6314a6196512e016ae02643
 2019-03-26 07:54:21 -07:00
Christian Blichmann
33206c5d3f Use a longer string in the CRC4 buffer overflow example. 
On some newer compiler versions, compiler optimizations and loop unrolling
change the memory layout so that 64 bytes are not enough to overwrite the
return address reliably.

PiperOrigin-RevId: 240343358
Change-Id: Ifb1a1dc1cb482793b7387887f0fd68a237879227
 2019-03-26 07:28:15 -07:00
Kevin Hamacher
1dd0428713 Add missing chdir() in the init process 
PiperOrigin-RevId: 239425921
Change-Id: Ia1b02ae0a2f319faa601d6098a9f94a3043656a8
 2019-03-20 10:36:11 -07:00
Christian Blichmann
52f4c1f927 Disable "mini" debug format support in libunwind to avoid additional library dependency 
PiperOrigin-RevId: 239397518
Change-Id: Icd8c641f9d5aac721a2cf1e4e0d3347743f49d58
 2019-03-20 08:03:08 -07:00
Christian Blichmann
30c25286f3 Merge pull request #8 from shaan1337:patch-1 
PiperOrigin-RevId: 239384106
Change-Id: Ibeb4b6a76226a1384fc21df33378101a31764012
 2019-03-20 14:33:36 +01:00
Wiktor Garbacz
2e9f50a68f Rename deathrattle_fatalmsg proto 
PiperOrigin-RevId: 239377742
Change-Id: I169407087f5e6f3275e282a51232bb6eea330e49
 2019-03-20 05:19:55 -07:00
Sandboxed API Team
c8a4131e74 Test that isatty is being allowed by AllowTCGETS. 
PiperOrigin-RevId: 239370864
Change-Id: Id98f3e5d8dceedb3cfbcd23b980e828f576d3e8d
 2019-03-20 04:11:21 -07:00
Christian Blichmann
3600a8a090 Merge pull request #2 from disconnect3d:patch-3 
PiperOrigin-RevId: 239354706
Change-Id: Ib9b5eca822bcf114a90c7dc96a9a2dacd318d016
 2019-03-20 09:42:47 +01:00
Christian Blichmann
0babaf094d Improve internal<->external code transforms #3 
Note: These commits only change very minor formatting issues in
the GitHub version. There is more than meets the eye, though. These
changes help to be able to accept pull requests.
PiperOrigin-RevId: 239225828
Change-Id: Ib31bf114e7cc4ccda49f7dcc4e9e24eebc735065
 2019-03-19 10:58:21 -07:00
Christian Blichmann
cb36b974eb Improve internal<->external code transforms #2 
PiperOrigin-RevId: 239221234
Change-Id: I5b50ed6472df894c43310addb9d8e8ca35b2c822
 2019-03-19 10:38:52 -07:00
Christian Blichmann
90d276f913 Improve internal<->external code transforms 
This includes changing the way libcap headers are included.

PiperOrigin-RevId: 239173120
Change-Id: I5562d924b96bab26a29342903895324bfe385e5a
 2019-03-19 05:51:53 -07:00
Kevin Hamacher
5d216fb191 Only spawn init processes when using PID NS 
PiperOrigin-RevId: 239169620
Change-Id: I9f26cfab90189a1baa5b87a700ce892cf0c95a89
 2019-03-19 05:14:29 -07:00
Sandboxed API Team
5aa13876a4 Formatting fixes. 
PiperOrigin-RevId: 239159980
Change-Id: Ic6185368392622bf3f4c661e37f6b9fcca0d60a6
 2019-03-19 03:41:32 -07:00
Disconnect3d
95d35615b8
Fix user namespaces link in howitoworks.md 2019-03-18 21:22:53 +01:00
Christian Blichmann
177b969e8c
Sandboxed API OSS release. 
PiperOrigin-RevId: 238996664
Change-Id: I9646527e2be68ee0b6b371572b7aafe967102e57

Signed-off-by: Christian Blichmann <cblichmann@google.com>
 2019-03-18 19:00:48 +01:00