Commit Graph

458 Commits

Author SHA1 Message Date
Sandboxed API Team
8c107936da Internal BUILD changes
PiperOrigin-RevId: 503417314
Change-Id: Ib368f5600ef39d2ee37fc8c71108d6d11f109328
2023-01-20 05:14:47 -08:00
Sandboxed API Team
adb90a14a0 Internal BUILD changes
PiperOrigin-RevId: 503412719
Change-Id: Idecf094c8c7c8956a9f000204c90ed83d6df599d
2023-01-20 04:43:10 -08:00
Wiktor Garbacz
8bf9868ec3 Protobuf doesn't directly support heterogeneous lookup with absl::string_view
If the platform does not have `std::string_view` (i.e. `absl::string_view` is not an alias of `std::string_view`) the lookup will cause build failure.

PiperOrigin-RevId: 503159858
Change-Id: Ide8229ae0219d1cb6f3b36aba26da8d53183bc4b
2023-01-19 07:32:03 -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
f87b6feb18 stack_trace: do not add common libraries when not a custom fork-server
Avoids duplicate entries warnings and tightens the namespace.
Drive-by: modernize the policy.
PiperOrigin-RevId: 503108939
Change-Id: If34d23dd83ca39682799dfb36bd0b9b9ceb19fdc
2023-01-19 02:47:49 -08:00
Sandboxed API Team
bc6937ac82 Add logging of stack traces of all threads that were terminated by a signal or
when the sandboxee did not exit normally.
Disabled by default, enabled with a flag.

PiperOrigin-RevId: 502807175
Change-Id: Icb5236cbfac0168a2d855c68967f7a1e8bd13fe3
2023-01-18 01:45:01 -08:00
Wiktor Garbacz
58c3f80d57 Allow MADV_HUGEPAGE used by tcmalloc
PiperOrigin-RevId: 501815420
Change-Id: I22d6408e4e6ca375823b7b9448547cc082fe5421
2023-01-13 04:41:22 -08:00
Wiktor Garbacz
2ae5370cfb Full syscall info in Result::ToString
PiperOrigin-RevId: 501522999
Change-Id: I90c63984c053a5e7deaf4b7619e70c360cc892bb
2023-01-12 03:57:44 -08:00
Sandboxed API Team
1871b173c4 Add __NR_faccessat2 to the list of syscalls allowed by AllowAccess().
PiperOrigin-RevId: 500105471
Change-Id: Ic43c608a511617ba9ca8c2cba440cd709ae80a19
2023-01-06 00:16:46 -08:00
Sandboxed API Team
756176f206 On new process, check for the clone3 syscall.
PiperOrigin-RevId: 499918752
Change-Id: I7279e76593976c224a15be901834bf6225aebe85
2023-01-05 10:02:09 -08:00
Sandboxed API Team
90ee0a7464 Update clients of PolicyBuilder to support architectures other than x86_64.
PiperOrigin-RevId: 499424110
Change-Id: I6e7ed7436db84a65b1920f78dfc00cb2f9894b3c
2023-01-04 01:44:20 -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
Wiktor Garbacz
2d52191c24 Define PR_SET_VMA* if undefined
PiperOrigin-RevId: 497161397
Change-Id: I65fc11a7ccf34ffe225a03a0444275145fa43b4f
2022-12-22 07:39:44 -08:00
Wiktor Garbacz
fc721da2b9 More precise sycall_defs
PiperOrigin-RevId: 497137823
Change-Id: I374054659ce94e6b53819b999d9ed25df18b4ebd
2022-12-22 05:00:48 -08:00
Wiktor Garbacz
89a8f35f0e Use new helpers in policy_test
PiperOrigin-RevId: 496904765
Change-Id: Id2e4a901ed29c780542423608c55d01ef19eee9a
2022-12-21 06:17:07 -08:00
Wiktor Garbacz
7625c3dd24 Use AllowDup helper in AddNetworkProxyPolicy
PiperOrigin-RevId: 496898835
Change-Id: I76968c5c9b25a9e41865b3fad20463661195f581
2022-12-21 05:36:28 -08:00
Sandboxed API Team
aff27f4559 Update PolicyBuilder to include wrappers for more syscall families that differ between platforms.
New wrappers:

- `AllowEpollWait` (`epoll_wait`, `epoll_pwait`, `epoll_pwait2`)
- `AllowInotifyInit` (`inotify_init`, `inotify_init1`)
- `AllowSelect` (`select`, `pselect6`)
- `AllowDup` (`dup`, `dup2`, `dup3`)
- `AllowPipe` (`pipe`, `pipe2`)
- `AllowChmod` (`chmod`, `fchmod`, `fchmodat`)
- `AllowChown` (`chown`, `lchown`, `fchown`, `fchownat`)
- `AllowReadlink` (`readlink`, `readlinkat`)
- `AllowLink` (`link`, `linkat`)
- `AllowSymlink` (`symlink`, `symlinkat`)
- `AllowMkdir` (`mkdir`, `mkdirat`)
- `AllowUtime` (`utime`, `utimes`, `futimens`, `utimensat`)
- `AllowAlarm` (`alarm`, `setitimer`)
- `AllowGetPGIDs` (`getpgid`, `getpgrp`)
- `AllowPoll` (`poll`, `ppoll`)

Updated wrappers:

- `AllowOpen` now includes `creat`. `openat` already grants the ability to create files, and is the designated replacement for `creat` on newer platforms.
- `AllowStat` now includes `fstatfs` and `fstatfs64`. The comment already claimed that these syscalls were included; I believe they were omitted by accident.
- `AllowUnlink` now includes `rmdir`. `unlinkat` already grants the ability to remove empty directories, and is the designated replacement for `rmdir` on newer platforms.

PiperOrigin-RevId: 495045432
Change-Id: I41eccb74fda250b27586b6b7fe4c480332e48846
2022-12-13 09:32:17 -08:00
Wiktor Garbacz
5b3450ac8d Internal change
PiperOrigin-RevId: 494153465
Change-Id: Ice7f3e7b95f8de1348ccb281bbfa6fc7164b3353
2022-12-09 06:14:19 -08:00
Wiktor Garbacz
ee58a410d9 Handle S2 unwinding by trapping ptrace
PiperOrigin-RevId: 491893277
Change-Id: I427a2e485173c73fffead43e29511460c58c4f04
2022-11-30 06:00:29 -08:00
Wiktor Garbacz
bd5769d40a Use SyscallTrap in NetworkProxy
PiperOrigin-RevId: 491891500
Change-Id: I2e70dbc44aa264247c217ca88a4de1c0867383fd
2022-11-30 05:47:44 -08:00
Wiktor Garbacz
5bf9b1aef0 Introduce SyscallTrap helper class
PiperOrigin-RevId: 491887840
Change-Id: I5b189969da33e042a3ba38fe14025a758103f160
2022-11-30 05:21:12 -08:00
Wiktor Garbacz
77c80b7213 unwind: Skip Mapping Symbols on ARM
ARM documentation for Mapping Symbols:
https://developer.arm.com/documentation/dui0803/a/Accessing-and-managing-symbols-with-armlink/About-mapping-symbols

PiperOrigin-RevId: 491836684
Change-Id: I2e259e66f2253d80902aa763f2637f3f6fdea414
2022-11-30 00:16:37 -08:00
Wiktor Garbacz
755f29b35e Correct unwinding stop condition
On successful completion, `unw_step()` returns a positive value
  if the updated cursor refers to a valid stack frame,
  or `0` if the previous stack frame was the last frame in the
  chain. On error, the negative value of one of the error-codes
  below is returned.

PiperOrigin-RevId: 491588164
Change-Id: Ie361023ef69eed6c895856832a8208f2791f644d
2022-11-29 03:24:31 -08:00
Sandboxed API Team
11b89c0317 Internal compatible_with change
PiperOrigin-RevId: 491371995
Change-Id: I3f0430d6678992642557320a8fa3cf738a7c5fab
2022-11-28 09:55:57 -08:00
Christian Blichmann
c3889ce379 Fix command-line handling in sandbox2tool
This addresses #164.

PiperOrigin-RevId: 483675926
Change-Id: I1461c9bb2c3865d86cd99f9285e51ce20ac460b8
2022-10-25 08:05:23 -07:00
Christian Blichmann
6fbfb8f9bd Remove Tag constructor, add standard comment for absl::WrapUnique(new T)
PiperOrigin-RevId: 483654433
Change-Id: I16b058a6b186f764f45bc5540f3f49d5a294ddeb
2022-10-25 06:20:51 -07:00
Christian Blichmann
8d04efa62d contrib: Replace uses of CHECK_NOTNULL
Abseil's standard name for this is `ABSL_DIE_IF_NULL`.

PiperOrigin-RevId: 483648443
Change-Id: I9d6826443be72b30f71c18972436fa5f9c05048a
2022-10-25 05:50:59 -07:00
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
Wiktor Garbacz
cb8efdc270 Sandbox2: Graciously handle mapping over Comms/Exec fds
Try to move the affected FDs transparently to avoid conflict.

PiperOrigin-RevId: 480105375
Change-Id: I0cd093fce120505d1cd4a1d081b3c0e63bf0210a
2022-10-10 09:39:01 -07:00
Christian Blichmann
b9c2830ebc Use new sandbox2::Comms ctor for default connection params
This change allows Sandbox2 to change how the default FD for comms is chosen.

PiperOrigin-RevId: 479526309
Change-Id: I69add85a244bc0385eaa164ab0ea3b036503c6d3
2022-10-07 02:08:20 -07:00
Wiktor Garbacz
3198ff06d3 Explicit Comms constructor with default params
This is to abstract the FD number away, so that we can change the way the FD number is chosen/communicated.

PiperOrigin-RevId: 479282707
Change-Id: Ic6726bcd0a17e97bde60804476ecbca2ffbf6525
2022-10-06 04:56:18 -07:00
Christian Blichmann
5b61445de9 Internal change
We have removed an internal-only sandbox mechanism that has been deprecated
for years. Some formatting/include changes may leak into the OSS version.

PiperOrigin-RevId: 475230500
Change-Id: Ib4efdf3282529ea50e8302e5ef7acfdd7d4c68e5
2022-09-19 01:58:32 -07:00
Wiktor Garbacz
d2c8c70d8e Internal change
PiperOrigin-RevId: 475224729
Change-Id: Id7c05c7542c44f58e7f4027c6932acd42f3a7857
2022-09-19 01:17:22 -07:00
Christian Blichmann
8de530036f Internal change.
Some includes may leak to OSS.

PiperOrigin-RevId: 474748898
Change-Id: Iff9dc4f91af211572ff4bbcf57330b36d7a957ab
2022-09-16 00:37:02 -07:00
Sandboxed API Team
75c7081622 For the SECCOMP event, check if the event msg is in the range of one of the known architectures.
If it isn't, assume that the process has exited and the event msg contains an exit code.

PiperOrigin-RevId: 471258449
Change-Id: I44408c30fe7fb39e20b55cea871f3efb68fcde67
2022-08-31 08:09:37 -07:00
Sandboxed API Team
e541f79abd forkserver_bin is usually embedded via cc_embed_data. So there is no real reason why it should be stamped.
PiperOrigin-RevId: 470013947
Change-Id: I7ff11fafdebb49e14c2b5dcae48c31fda6da2833
2022-08-25 09:54:24 -07:00
Christian Blichmann
7008aa21b6 Remove leftover definition from move to SyscallTable
PiperOrigin-RevId: 467930784
Change-Id: Id149fe9ef85718f28fcb396b03b574c32dc846d8
2022-08-16 08:24:56 -07:00
Sandboxed API Team
28504f1817 Make code not have a -Warray-parameter warning.
PiperOrigin-RevId: 467842322
Change-Id: Ic262a3f98fa823ef524ac02d08b2f5b8f4adf71d
2022-08-15 22:55:51 -07:00
Sandboxed API Team
deb3c8e77b Batch threads waiting for the monitor's attention.
Instead of doing waitpid() and processing one thread at a time, gather all waiting threads and then process them.

This avoids starving older threads when newer threads raise a lot of events.

PiperOrigin-RevId: 466366533
Change-Id: I81a878f038feac86407a8e961ecba181004f0f8a
2022-08-09 08:28:03 -07:00
Sandboxed API Team
78ee270388 Remove information about in-progress syscalls on process exit.
PiperOrigin-RevId: 463091104
Change-Id: I402cb61e9e816a20a87274ea874cddf91c101e14
2022-07-25 08:28:25 -07:00
Sandboxed API Team
4d906e7143 Fix visibility
PiperOrigin-RevId: 461617454
Change-Id: Id77bfbec2cc095005a434251c056b19c3c6a64c4
2022-07-18 07:44:38 -07:00
Wiktor Garbacz
1e4cf06f69 Block installing user notify inside Sandbox2
PiperOrigin-RevId: 458781163
Change-Id: Ifcaf940d8a70a9a4ab5b24aefdaaae622cfce4f3
2022-07-03 11:20:31 -07:00
Sandboxed API Team
e5bc3e69cd "Stack traces have been disabled" message goes to VLOG instead of INFO.
PiperOrigin-RevId: 456755121
Change-Id: I7eb7badcd5901a33dd2b2afc0833f00eeedacada
2022-06-23 06:42:35 -07:00
Sandboxed API Team
81871a98f7 Internal-only change.
PiperOrigin-RevId: 455553721
Change-Id: I923ab39b9bcd92a6a8e0dd8f95b01cc135ace919
2022-06-17 00:37:39 -07:00
Oliver Kunz
598b00103a This change introduces internal experimental support for Android.
PiperOrigin-RevId: 453669315
Change-Id: I6c3278804071caa2bb347cfeb584975339cb50d5
2022-06-08 06:51:41 -07:00
Oliver Kunz
546fda8f1e Internal change
PiperOrigin-RevId: 451384097
Change-Id: Ib1177bbb147074dfff8719a0733417f4f1afc9da
2022-05-27 06:45:58 -07:00
Sandboxed API Team
5513e560eb Add option to block the ptrace system call instead of denying it.
PiperOrigin-RevId: 451347905
Change-Id: Iaed0f6f116bca3be4e6e7009dddd4dd6267823bb
2022-05-27 02:57:37 -07:00
Sandboxed API Team
65487bca39 Fix typo.
PiperOrigin-RevId: 451345082
Change-Id: Id443348448fa4cb6e682d18be64d39e363e20e0c
2022-05-27 02:42:14 -07:00
Wiktor Garbacz
88b0a9e2e5 Fix possible crash when multiple termination conditions occur simultaneously
E.g. a failed `KillSandboxee` for a timeout would already set the exit status code while there could be an external kill pending at the same time which would try to `KillSandboxee` again and thus set exit status code again.

PiperOrigin-RevId: 448464765
Change-Id: Ic5744a576c4255504bfb1d5c4f33253b5bb32b6f
2022-05-13 04:35:27 -07:00