Commit Graph

902 Commits

Author SHA1 Message Date
Christian Blichmann
c2b7cffe78 Minielf: Use a template to load integers
Different versions of the `elf.h` header define their own integer types. For
example, even on LP64 systems, a 64-bit ELF integer types may decay into
`unsigned long long` instead of `unsigned long`.

This change replaces the various overloads with a single function template
that is well-defined for all integral types.

PiperOrigin-RevId: 410746713
Change-Id: I4b560f7541802372f01ae3d6f4a56554e51d70c8
2021-11-18 02:16:26 -08:00
Sandboxed API Team
dcfd85d74e Extend existing CPU architecture spellings in config header and define platform spellings.
PiperOrigin-RevId: 410474889
Change-Id: I41f870ad49e2203a6bdf833102c0d0a9cafa7af4
2021-11-17 02:41:07 -08:00
Wiktor Garbacz
e86322db84 Fix a race between NotifyMonitor/AwaitResult
PiperOrigin-RevId: 410463096
Change-Id: I370705131ac78f26736646596189d8cad2bb70c2
2021-11-17 01:40:42 -08:00
Sandboxed API Team
04503f9bbe Replace <bits/local_lim.h> with <climits>
PiperOrigin-RevId: 409932987
Change-Id: I388aca627d6d0f3c9d5721e66574fb8af85cc8f4
2021-11-15 03:16:28 -08:00
Sandboxed API Team
9541b657ad Use alias s6_addr instead of direct field access.
PiperOrigin-RevId: 409908616
Change-Id: I18f87b41eae3f96fd60b8cd14073bd8df66fae98
2021-11-15 01:01:20 -08:00
Sandboxed API Team
2727714012 Expose unwind symbol helpers.
PiperOrigin-RevId: 409391470
Change-Id: Iad14caabbada1278216e5e28ba55bae8dc8b9b2b
2021-11-12 05:59:51 -08:00
Wiktor Garbacz
26da6e6b0a Safer and more efficient custom syscall policies
Generate syscall jump table without using bpf_helper.
Check that any jump in the user provided policy is within the provided policy.

PiperOrigin-RevId: 409362089
Change-Id: I31493e52cf868e4b184ff79fcb26beeb75f49773
2021-11-12 02:44:41 -08:00
Wiktor Garbacz
c95837a6c1 Check and limit seccomp policy length.
PiperOrigin-RevId: 409129756
Change-Id: Ib9937495966f545fb980eba04393db640af2325f
2021-11-11 06:10:40 -08:00
Sandboxed API Team
00747d5241 Allow getpid call for log forwarding.
PiperOrigin-RevId: 407865992
Change-Id: Ia14dc5cc1628337292586955f1c17a8d8f2995de
2021-11-05 11:16:45 -07:00
Copybara-Service
b63fa3b981 Merge pull request #87 from mysterytony:patch-1
PiperOrigin-RevId: 404246588
Change-Id: I1fdb33f76ae847cb6c4ff9916b64e8b37cfeadbe
2021-10-19 06:49:10 -07:00
Tony Li
cfb9e031dd
fix typo, master branch -> main 2021-10-17 22:52:57 -07:00
Christian Blichmann
d85f40b8b0 Modernize namespace_test a little
PiperOrigin-RevId: 402795383
Change-Id: Ia576259078f40a3ca6b96094bd15c3ea7b0b79d9
2021-10-13 04:17:46 -07:00
Christian Blichmann
1260b5f38b Move example sandboxes out of lib directories
This is mainly so that the structure of the examples follows what we do
internally (not having separate directories).

PiperOrigin-RevId: 402298115
Change-Id: I0f542607b88597572de39532364816f80a076697
2021-10-11 07:59:25 -07:00
Christian Blichmann
2c42654333 Improve examples
- CRC4: More readable policy, added explanatory comment
- Use `AllowLlvmSaniters()` in policies

PiperOrigin-RevId: 402296504
Change-Id: I6853199abedf2441eaffff9186d4d354c142e485
2021-10-11 07:50:27 -07:00
Christian Blichmann
d05dc7ba02 Reduce visibility of internal member function
This is the first change in a series that will eventually remove Sandboxed
API's use of multiple inheritance.

Drive-by:
- Rename short member names to full words
- Some reformatting
PiperOrigin-RevId: 402270954
Change-Id: I8af46b887921265a371b85603fd158ef3a8fab50
2021-10-11 05:38:01 -07:00
Christian Blichmann
df1c31188d Fix sums test under MSAN by allowing Scudo to add MAP_NORESERVE in mmap()
Note: This change allows `MAP_NORESERVE` generally, not just for MSAN. This follows
what we do for `AllowTcMalloc()/AllowSystemMalloc()`
PiperOrigin-RevId: 402231980
Change-Id: Ifa1c6b9f61f636dd6db231dde3765c3b4a40911b
2021-10-11 01:22:17 -07:00
Christian Blichmann
221e929018 Include shell-based tests in OSS builds
These were previously dependent on an internal-only testing target.

For now, this only works with Bazel, but should enable us to have better test coverage in GitHub actions.
Eventually, all of these shell-based tests should be converted to `cc_test`s.

PiperOrigin-RevId: 400713615
Change-Id: I1cabb5b72977987ef4a1803480f699b58c4d56e9
2021-10-04 07:18:36 -07:00
Christian Blichmann
98e590463b Internal change
PiperOrigin-RevId: 400144449
Change-Id: Ic0cbd6a3b27012cfb406694bdf2944a5b9905580
2021-10-04 07:18:06 -07:00
Sandboxed API Team
4050f34efc Internal Change
PiperOrigin-RevId: 399850339
Change-Id: I1cbb4d7510bff3ab4a4559cb3252dcf79d2a06b8
2021-09-29 22:12:26 -07:00
Christian Blichmann
90d1867026 Remove deprecated sapi::StatusOr<> forward declaration
PiperOrigin-RevId: 399663835
Change-Id: I92255a68e50a3b9130d3e222a2e353ee2e599c18
2021-09-29 05:39:10 -07:00
Christian Blichmann
f6d9e7fd7c Fix warning about multi-line comment
PiperOrigin-RevId: 399648071
Change-Id: I793a640310d772804726527761ad911772ff19c6
2021-09-29 03:44:32 -07:00
Wiktor Garbacz
d9d2f0e5de Use regular logging in fork client
PiperOrigin-RevId: 399623764
Change-Id: I5eaf0ff7f24e7b61c84ff9dacf8cd53889cc83d0
2021-09-29 00:46:12 -07:00
Sandboxed API Team
fb81c00fd1 Replace auto with explicit type declarations
PiperOrigin-RevId: 399419917
Change-Id: I4b7acd8ab6e2542e2971b29bed0745378b2b6743
2021-09-28 05:50:57 -07:00
Sandboxed API Team
448f393c29 Enable mmap for msan (it's already enabled for asan and tsan)
PiperOrigin-RevId: 399163710
Change-Id: I2cebb6136adb00a53e4baf18d343cf80191efcb0
2021-09-27 05:08:45 -07:00
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
b470a6ece5 Make the fd cleanup test less brittle
PiperOrigin-RevId: 398229418
Change-Id: If8af43f33b07839ea8d46b85ff77efa8557a31a8
2021-09-22 06:57:55 -07:00
Catalin Patulea
b5fb483b11 Fix formatting of pgoff.
PiperOrigin-RevId: 397763298
Change-Id: I027ef4cd381247521ee2bcce57a17c9d480efb22
2021-09-20 09:02:14 -07:00
Christian Blichmann
c400f92eaa (Mostly) internal change. Add pid() accessor.
PiperOrigin-RevId: 397070773
Change-Id: I9ebac9078f3866ef3e0061ec79da5c9f71e5f480
2021-09-16 06:57:44 -07:00
Kevin Hamacher
aea8bb2ed0 Automated rollback of commit 2036f5b2f0.
PiperOrigin-RevId: 395893427
Change-Id: Iabd32de9cd83de5cc8567834e1f91e48c521ac60
2021-09-10 03:34:44 -07:00
Sandboxed API Team
2036f5b2f0 Automated rollback of commit 4b018757c3.
PiperOrigin-RevId: 395067992
Change-Id: I5db335ed881aa81748a0fc8082091b160fe83e86
2021-09-06 04:07:11 -07:00
Kevin Hamacher
4b018757c3 Use absl::flat_hash_set + Status in favor of std::set in the sanitizer API
PiperOrigin-RevId: 395061068
Change-Id: I31548eb6fc9f27f55acf25bd6d3d0b941a529e63
2021-09-06 03:15:39 -07:00
Kevin Hamacher
eb2c5a66f4 Rework GetListOfFDs API
PiperOrigin-RevId: 395043959
Change-Id: I77ce13f0c786d3644971ed239f3106319667e979
2021-09-06 01:01:19 -07:00
Christian Blichmann
289adcff06 Internal change.
For OSS, this change should be mostly a no-op. Visible edits are due to
changed order of code and/or includes.

PiperOrigin-RevId: 394177395
Change-Id: I1d32f9fd175579e8f05c051b1307953b249d139d
2021-09-01 01:28:19 -07:00
Catalin Patulea
9ab330dc7a 'Map' symbols: add pgoff to disambiguate multiple mappings on same object.
PiperOrigin-RevId: 391520785
Change-Id: Icb05e60f778acfb9fe6f519911ce54bec65fc4ff
2021-08-18 07:14:31 -07:00
Wiktor Garbacz
59f5fa8042 Allow collecting stacktraces on normal process exit
This mainly a debugging facility.
It makes diagnosing problems where sandboxed process just randomly exits whereas unsandboxed one runs to completion due to differences in the setup/environment much easier.

PiperOrigin-RevId: 391005548
Change-Id: Ia19fe6632748da93c1f4291bb55e895f50a4e2b0
2021-08-16 03:13:15 -07:00
Sandboxed API Team
7b31deaed8 Delete deprecated sapi::Sandbox::IsActive and its remaining call sites.
PiperOrigin-RevId: 390412024
Change-Id: Iab3853b3c40dd4e9b0ff31532e8c41c2583ebc4e
2021-08-12 11:00:51 -07:00
Sandboxed API Team
dae91ff082 Fix Symbolize* tests.
PiperOrigin-RevId: 390372065
Change-Id: I1ddc9dd9238795eb0674e04c20a5c91a68582027
2021-08-12 08:03:52 -07:00
Sandboxed API Team
d631154ce5 Delete deprecated sapi::Sandbox::GetRpcChannel and its remaining call sites.
PiperOrigin-RevId: 389968873
Change-Id: Ia72e0064fa57679180f9c406f96266473f8461c2
2021-08-10 13:50:15 -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
Sandboxed API Team
165c155a08 Delete deprecated sapi::Sandbox::GetComms and its remaining call sites.
PiperOrigin-RevId: 389716023
Change-Id: I092bc37f3f3bb40554b627f9dd528525b60d67a1
2021-08-09 13:49:45 -07:00
Sandboxed API Team
3f0875798d Delete deprecated sapi::Sandbox::GetPid and its remaining call sites.
PiperOrigin-RevId: 389713115
Change-Id: I1832e759016a581e10bf5bd8b5b70244b40ecd69
2021-08-09 13:36:15 -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
Wiktor Garbacz
e88755256d Use FDCloser in Executor extensively
Also really own `exec_fd_` as previously if the executor is destructed without calling `StartSubProcess` the file descriptor would leak.

PiperOrigin-RevId: 388901766
Change-Id: I6bbb15ced37a0a832ec5a5228452a3d54ef46ee9
2021-08-05 04:16:11 -07:00
Wiktor Garbacz
80ad7bb2b0 Replace a CHECK with a warning
PiperOrigin-RevId: 388893117
Change-Id: I0b0ccf2045aea09d31ae1605b205aab456bd8550
2021-08-05 03:03:24 -07:00
Christian Blichmann
8b1dfd7343 Fix factory method sapi:✌️:Proto<>::FromMessage
This was missing a friend declaration in order to actually compile.
It's now being used in the "stringop" example, so we test it as well.

Drive-by:
- Do not copy the proto's bytes the constructor, but use `std::move`
PiperOrigin-RevId: 387774353
Change-Id: Ic8824af911ac744e2e68130e1f4673c4dddd4939
2021-07-30 03:55:17 -07:00
Christian Blichmann
fd20eb0b4d Reorder error logging before Terminate()
Calling `Terminate()` issues additional syscalls that may clobber the `errno`
value. Reordering the log statements ensures we actually log the initial error
in `read()`/`write()`.

PiperOrigin-RevId: 387576942
Change-Id: I0f9c8c6001e6dc4ca098abe02cd251029f92a737
2021-07-29 07:12:02 -07:00
Christian Blichmann
f14aeee0ad Internal change.
PiperOrigin-RevId: 387565158
Change-Id: I7b5293b614fae74abae1f9a347b0ef414028b8ea
2021-07-29 05:52:19 -07:00
Christian Blichmann
85c58dc2d7 Reduce logspam: Log Tomoyo LSM check only with VLOG
PiperOrigin-RevId: 387114844
Change-Id: Ib670799e3327fcc991ad012ccee20b96089c2f48
2021-07-27 08:32:10 -07:00
Christian Blichmann
ccd7b03026 Introduce sapi::OsErrorMessage() for error handling
This should make handling OS error less repetetive.

PiperOrigin-RevId: 387074642
Change-Id: I09b8c5e37e7f7b08341e22ba01ccda21a916a4bc
2021-07-27 04:10:04 -07:00