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38 Commits

Author SHA1 Message Date
Sandboxed API Team
f6fd27618b Automated rollback of commit 8c53262539. 
PiperOrigin-RevId: 529101664
Change-Id: Ica452c6ee8f54b78be09fa830a09d6a89800cf44
 2023-05-03 08:45:11 -07:00
Kevin Hamacher
8c53262539 Allow forkserver to use waitpid as alternative to sa_nochldwait 
PiperOrigin-RevId: 529074278
Change-Id: If63015586673610e111ee589995e5264523be7a7
 2023-05-03 06:41:07 -07:00
Wiktor Garbacz
a4d602298b Dump coverage prior to execveat 
PiperOrigin-RevId: 520002416
Change-Id: Ic792b0b71b8e7b2f00b669db9b6831acd8341c5c
 2023-03-28 05:50:43 -07:00
Wiktor Garbacz
e031c11bdc Update naming and lambda capture for stack size 
PiperOrigin-RevId: 515254988
Change-Id: I394dc039bcfcbd2ccd7c705a91974f4183b28c39
 2023-03-09 00:14:39 -08:00
Wiktor Garbacz
0d3d5d4bcb Seccomp_unotify based monitor 
Unotify based monitor should bring big performance wins
if the sandboxee heavily uses threading or signals.
Some of the features are not supported in that mode:
- execveat is always allowed instead of just the initial one
- stack traces are not collected on normal exit or if the process is terminated by signal

PiperOrigin-RevId: 515040101
Change-Id: Ia5574d34b4ff7e91e3601edb8c9cb913e011fbf6
 2023-03-08 08:09:34 -08:00
Wiktor Garbacz
a8db8bfcf7 PTHREAD_STACK_MIN is not always a constexpr 
PiperOrigin-RevId: 514695823
Change-Id: Iecf16f0bd563d85f80b0697d14293ff2d3133aef
 2023-03-07 04:47:53 -08:00
Wiktor Garbacz
3f53e81d0b Remove unused dependency 
PiperOrigin-RevId: 509890467
Change-Id: I0189fca5efa93a9e67f6f07eac44793cd17dcfc3
 2023-02-15 11:35:14 -08:00
Wiktor Garbacz
a5d12903dd Extract SandboxeeProcess and move it down the call chain 
PiperOrigin-RevId: 507718207
Change-Id: Ia1f6fc2f09abbde5311f8dc0f596aa605989140d
 2023-02-07 02:22:45 -08:00
Wiktor Garbacz
2f64d3d925 stack_trace: pass fd to sandboxee's memory instead of using process_vm_readv 
Libunwind sandbox no longer needs to join sandboxee's userns.
This cleans up a lot of special handling for the libunwind sandbox.

PiperOrigin-RevId: 503140778
Change-Id: I020ea3adda05ae6ff74137b668a5fa7509c138f8
 2023-01-19 05:44:50 -08:00
Wiktor Garbacz
00d42577d5 Use CLONE_VM for starting the global forkserver 
PiperOrigin-RevId: 499192311
Change-Id: I054385e9cab5e4987b0f34ab3b763244356405c2
 2023-01-03 05:36:40 -08:00
Christian Blichmann
4c87556901 Use Abseil's log/flags instead of glog/gflags 
Follow-up changes might be required to fully fix up the contrib sandboxes.

PiperOrigin-RevId: 482475998
Change-Id: Iff631eb838a024b2f047a1be61bb27e35a8ff2f4
 2022-10-20 06:48:51 -07:00
Christian Blichmann
79b6784b82 #Cleanup: Consistently use std::make_unique 
PiperOrigin-RevId: 480597371
Change-Id: I145586382ad7a7694384cc672986132376a47465
 2022-10-12 05:23:42 -07:00
Christian Blichmann
a60ff1a95c Remove OsErrorMessage in favor of Abseil's new ErrnoToStatus 
#Cleanup

PiperOrigin-RevId: 443359044
Change-Id: I2b3e385a1846feac79edd28fcbf6e85b1429a44a
 2022-04-21 06:15:38 -07:00
Sandboxed API Team
546365655d Introduce commandline flag to pass forkserver_bin path for Android builds. 
PiperOrigin-RevId: 431942480
Change-Id: I5382b4fc8e8a66bb823dda597e1b812421364212
 2022-03-02 08:12:21 -08:00
Christian Blichmann
d451478e26 Change license link to HTTPS URL 
PiperOrigin-RevId: 424811734
Change-Id: If5ea692edc56ddc9c99fd478673df41c0246e9cc
 2022-01-28 01:39:09 -08:00
Wiktor Garbacz
c29c510e30 Log when global forkserver is started and its exit status 
PiperOrigin-RevId: 398232735
Change-Id: Ia0628cf2dee51a94938dae82bcb392384feeb74c
 2021-09-22 07:16:43 -07:00
Wiktor Garbacz
773dc6b18b Do not fail-hard in global forkserver startup 
PiperOrigin-RevId: 389816114
Change-Id: Icd672028ff224cf01095d6590fe1cc2adb312316
 2021-08-10 00:33:29 -07:00
Wiktor Garbacz
0621e06a9c Allow recovering from global forkserver failure 
PiperOrigin-RevId: 389164847
Change-Id: I40bc3b6d3bea28ee8954ea2a11a0427a6c05da35
 2021-08-06 06:54:05 -07:00
Wiktor Garbacz
fe709502f4 Wait for global forkserver when shutting it down 
Otherwise starting forkserver multiple times will result in zombie processes lingering around.

PiperOrigin-RevId: 388926497
Change-Id: Ia9947cce3d9e909edd709b0d3525e1ae8b8bbc51
 2021-08-05 07:07:35 -07:00
Christian Blichmann
7b711b85e8 Rename static singleton accessor 
PiperOrigin-RevId: 384699374
Change-Id: I674baffc77bc6b3815f94512058a14d37d164c6f
 2021-07-14 08:00:59 -07:00
Wiktor Garbacz
fe08d724e4 Simplify the dup fix and add better error handling 
Original fix might fail if RLIMIT_NOFILE is set to 1024.

PiperOrigin-RevId: 381034115
Change-Id: I39e33a90083533cf85eb04072604665c299b861f
 2021-06-23 08:14:01 -07:00
Wiktor Garbacz
0ec4f07f96 Fix rare failure while starting the global forkserver 
This bug only manifests if a lot of fds are open when global forkserver is started.
If the allocated exec_fd number was equal Comms::kSandbox2ClientCommsFD then it would be replaced by the comms fd and result in EACCESS at execveat.

PiperOrigin-RevId: 380805414
Change-Id: I31427fa929abfc60890477b55790cc14c749f7f5
 2021-06-22 07:48:58 -07:00
Wiktor Garbacz
e87a052e61 Fix restarting global forkserver 
PiperOrigin-RevId: 376643949
Change-Id: I5811e8b8a9f5e74cab21d021c8e83b2a4b91818a
 2021-05-31 02:19:28 -07:00
Christian Blichmann
dbaf95c724 Move utility code into sandboxed_api/util 
This change should make it less confusing where utility code comes from.
Having it in two places made sense when we were debating whether to publish
Sandbox2 separately, but not any longer.

Follow-up changes will move `sandbox2/util.h` and rename the remaining
`sandbox2/util` folder.

PiperOrigin-RevId: 351601640
Change-Id: I6256845261f610e590c25e2c59851cc51da2d778
 2021-01-13 09:25:52 -08:00
Sandboxed API Team
b61b2a37b7 Add IsStarted() method to GlobalForkClient. 
PiperOrigin-RevId: 351170872
Change-Id: I5544eb27962606a562ce79b97d508f841ec0dc56
 2021-01-11 09:34:13 -08:00
Christian Blichmann
507010781a Follow-up with more build fixes 
Because any change that touches continuous integration needs a companion o.O

PiperOrigin-RevId: 347769780
Change-Id: I20525aaac2ce41c48f619b641baa31e880432e50
 2020-12-16 00:09:28 -08:00
Christian Blichmann
c3ac45be3e Reimplement raw logging to avoid Abseil internals 
The defined raw logging macros should be compatible with Abseil and
we can remove our version once Abseil releases theirs.

PiperOrigin-RevId: 347354273
Change-Id: I178a89cfd2e19bcd707a06fa9dfd7b767e2b654b
 2020-12-14 03:34:02 -08:00
Wiktor Garbacz
6d98090962 Do not fail if forkserver is disabled by env when lib_ctor is used 
PiperOrigin-RevId: 346743575
Change-Id: I948aad88120746e15535e3c5270581a31a0b3d29
 2020-12-10 02:49:54 -08:00
Sandboxed API Team
c7d8e83d60 Declare global forkserver start mode flag in header file so it can be overridden in code more easily. 
PiperOrigin-RevId: 346588150
Change-Id: I1013b928a45bab164e7db28d49be8504353dc064
 2020-12-09 10:53:41 -08:00
Wiktor Garbacz
da64459e3f Allow shutting down the global forkserver 
PiperOrigin-RevId: 345198374
Change-Id: I3b5c49f6e5abb76d2b0a57078ffeb0609e0be008
 2020-12-02 03:05:37 -08:00
Wiktor Garbacz
f8a2729c32 Start global fork-server on demand 
Allow disabling global fork-server with a flag.

PiperOrigin-RevId: 340860588
Change-Id: I184603dc3a81eb90f715053e14fb3b8d66a6f104
 2020-11-05 08:48:03 -08:00
Wiktor Garbacz
f7d3f442df Extract ForkClient to a separate target 
PiperOrigin-RevId: 321757582
Change-Id: I48b89ab4e4b1d87dd9444874de5bf5bd2526531a
 2020-07-17 04:54:54 -07:00
Chris Kennelly
63a8b3ff15 Refactoring for internal change 
PiperOrigin-RevId: 320612442
Change-Id: I65729ac5d83c76dac047a47f866b7ad4af3c56c1
 2020-07-10 09:01:49 -07:00
Wiktor Garbacz
539d1cac34 Replace if (!cond) { LOG(FATAL, msg) } with CHECK(cond, msg) 
PiperOrigin-RevId: 291916344
Change-Id: Ib522a3f202b20bf8f1ab4ca5774952d4b8f43e91
 2020-01-28 05:59:33 -08:00
Christian Blichmann
441201884a Update license header with recommended best practices 
PiperOrigin-RevId: 290250533
Change-Id: Ic34b253446463cf971a055b70a242df93a598ee3
 2020-01-17 05:05:29 -08:00
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
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
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