Commit Graph

849 Commits

Author SHA1 Message Date
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
07d4d02628 Build fixes for older GCC and Ubuntu
- Ubuntu 18.04 ships with GCC 7, which needs `std::move()` when returning an `absl::StatusOr<>`
- Ignore C++ AST nodes of type `cindex.TypeKind.UNEXPOSED` in Python generator
- Remove default values in `ubuntu-cmake.yml`

PiperOrigin-RevId: 347605109
Change-Id: Ibe167249ecf4ef1af1654d63c2e067fc02e5782d
2020-12-15 07:09:22 -08:00
Anton D. Kachalov
0e8d16e011 Enable shared libraries build and cross-compilation
This allows resource-constrained environments to benefit from the
space savings of dynamic linking. This is not meant to be used in
the general case.

PiperOrigin-RevId: 347398828
Change-Id: Ia634959148a31159878f48c44255dd733424a2b8
2020-12-14 09:16:14 -08:00
Anton D. Kachalov
218435d88e Make compiler/linker flags visible to dependencies.
PiperOrigin-RevId: 347396613
Change-Id: Ic80b6a731a3b182f3aa320d36b598d074e7f3802
2020-12-14 09:03:52 -08:00
Christian Blichmann
319493f5f0 Remove FsDescription proto
FS checks are an internal feature that has been deprecated for a while in
favor of user namespaces.

PiperOrigin-RevId: 347378761
Change-Id: I1d7956cecd6db47b2b96fdedaada0b2a36f9b112
2020-12-14 07:12:59 -08:00
Anton D. Kachalov
8924b63d5a Add hardening linker options.
PiperOrigin-RevId: 347367335
Change-Id: Ia7d707bd3e7e58021fc3bb14df13a9f06c5e2735
2020-12-14 05:39:35 -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
Anton D. Kachalov
8bf410f0bb Add gmouse@ to authors.
PiperOrigin-RevId: 347336942
Change-Id: Iaa8aef0084882ced82fb1331841bb2aa21753004
2020-12-14 03:33:52 -08:00
Wiktor Garbacz
742fafa433 Prefixed (unique) names for executables in cmake
PiperOrigin-RevId: 347335966
Change-Id: Ic8cc22b882fa489d37b636406a1a5fe51745d808
2020-12-14 01:13:31 -08:00
Sandboxed API Team
d172411d7b Force -fno-exceptions compiler option.
Add hardening compiler options (enabled via SAPI_HARDENED_SOURCE)

PiperOrigin-RevId: 347081406
Change-Id: I6c293a95a3bb05ea3b581bd9497381847c7aa510
2020-12-11 14:58:27 -08:00
Sandboxed API Team
13ff7a42da Avoid double insertion of interpreter value.
PiperOrigin-RevId: 346985006
Change-Id: Id18346702cee973e487cc608ccf2bd08f40a0da6
2020-12-11 06:11:43 -08:00
Christian Blichmann
2a9320dbac Update/simplify linker flags for testcases
- Bazel: Use "incompatible" flag to fix fully static linking. The flag will
  become the default in Bazel 4.0.
- Bazel: Deduplicate features into `FULLY_STATIC_FEATURES` variable
- CMake: Remove the testcase properties. `sapi::base` already sets
  `POSITION_INDEPENDENT_CODE`. Note that `-pie` is incompatible with `-static`
  and `-static-pie` requires GCC 8 and GLIBC 2.27.

PiperOrigin-RevId: 346952478
Change-Id: I7a317c90a3bec9691b13df1a00e3fddf4481df4d
2020-12-11 01:12:05 -08:00
Wiktor Garbacz
81a68382d8 Use file helpers in minielf_test
PiperOrigin-RevId: 346949861
Change-Id: Ib323a9ecd8fd8f268f09b028d13b220d3d8b60d1
2020-12-11 00:48:23 -08:00
Sandboxed API Team
d4d58361e9 Bump Abseil-cpp version to 2020-11-19.
PiperOrigin-RevId: 346793646
Change-Id: I5dc41ed78439d117f46b08f609459e761392e802
2020-12-10 08:52:22 -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
Christian Blichmann
2869e3f598 Fix missing argument in call to open() in namespace test
Calling `open()` with `O_CREAT` requires 3 arguments.

PiperOrigin-RevId: 346739861
Change-Id: I38167e9184f4755e48307eaa674277069bd4ccf8
2020-12-10 02:19:21 -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
Christian Blichmann
7ce4b24cb5 Update OSS build transform to move .github to the right place
PiperOrigin-RevId: 346538768
Change-Id: I3b25d67d1646a9bbbe4a7feefbb124f0f0679d70
2020-12-09 06:37:13 -08:00
Christian Blichmann
a2fa269080 Add GitHub workflow for CMake build
PiperOrigin-RevId: 346521211
Change-Id: Idf60be85aa3983ad625bcef53b48e8d0b797ed4a
2020-12-09 04:14:37 -08:00
Copybara-Service
6f8e758177 Merge pull request #56 from alexelex:master
PiperOrigin-RevId: 346286713
Change-Id: Ib052758d6a7deaa1c62660fd43d8f0e31f42bc09
2020-12-08 03:15:35 -08:00
Copybara-Service
08bb2f80d1 Merge pull request #69 from alexelex:libpng-master
PiperOrigin-RevId: 346072038
Change-Id: I23a9e6704106e2834a5900522a1be06341c6421a
2020-12-07 05:34:46 -08:00
Sandboxed API Team
3323ddc129 Permit sandboxee's bpf() to fail
The default policy causes immediate termination of a sandboxee that
calls `bpf`(2).

This does not allow for try-call use of `bpf()` to test for optional
features.

To support such try-call use cases, sandboxes would like to say:

```
  sandbox2::PolicyBuilder builder;
  builder.BlockSyscallWithErrno(__NR_bpf, EPERM);
```

but this doesn't work because the default policy unconditionally treats
`bpf()` as a sandbox violation.

Remove the bpf violation check from the policy if `bpf()` is explicitly
blocked with an errno.

PiperOrigin-RevId: 345239389
Change-Id: I7fcfd3a938c610c8679edf8e1fa0238b32cc9db4
2020-12-02 08:38:32 -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
Christian Blichmann
6587e571f1 Skip entries with zero inode when parsing /proc/PID/maps
This also skips all entries that point to deleted files.

PiperOrigin-RevId: 344244273
Change-Id: Ic47c6ab0dff4eaf4b4dea2779c45685922adc608
2020-11-25 06:46:39 -08:00
Wiktor Garbacz
5001778443 Use binary search in syscall defs
The lookup is not on the hot path and this removes the SYSCALLS_UNUSED macros.

PiperOrigin-RevId: 344240762
Change-Id: I324bd798945851ac0b92e257206525eab4ec36e5
2020-11-25 06:15:29 -08:00
Wiktor Garbacz
f6247aad9d Fix SyscallTable::get to return proper table
PiperOrigin-RevId: 344236195
Change-Id: Ie370c1a771f1896c98ea387c0a84231a433c9d8c
2020-11-25 05:37:18 -08:00
Kevin Hamacher
510b5079ed Internal Change
PiperOrigin-RevId: 343296855
Change-Id: I995fa76f306fca8524a187f7fd1cbc498a92a885
2020-11-19 08:37:41 -08:00
Copybara-Service
fbf3e84799 Merge pull request #65 from andreimedar:libarchive
PiperOrigin-RevId: 343290002
Change-Id: I1f29e4acfc7d423be63fd52e7a78ceb209d29115
2020-11-19 07:53:41 -08:00
Christian Blichmann
eaff70b558 Use actual ptrace() arguments in example
The semantics of the example remain unchanged. This change is in preparation
for the new Clang based header generator, which will parse most files in C++
mode. `ptrace`'s first argument cannot me implicitly converted from `int` in
C++.

PiperOrigin-RevId: 343280691
Change-Id: Ibc5318b19a48f1dad441e7dcdc318dc5ea6837f6
2020-11-19 06:47:31 -08:00
Copybara-Service
e6bb05a15d Merge pull request #55 from FedericoStazi:libuv
PiperOrigin-RevId: 343278766
Change-Id: I708fdc1cd98d5fbb2abcf3261d1cecd65cec46fe
2020-11-19 06:32:47 -08:00
Christian Blichmann
c2631d88ae Improve syscall argument printing for x86-64
Updates syscall arguments mostly according to this list and more recent kernel sources:
https://chromium.googlesource.com/chromiumos/docs/+/master/constants/syscalls.md#x86_64-64_bit

The list includes some more syscalls that were recently added.

Follow-up changes will do the same for x86-32, POWER and AArch64.

PiperOrigin-RevId: 341016698
Change-Id: If1771fd37a47b227ca8f572704a64190e4621a38
2020-11-06 02:55:13 -08:00
Wiktor Garbacz
5fb18d3c9d Add policy on both mmap & mmap2
PiperOrigin-RevId: 341007959
Change-Id: I3c2e74cc973d2603cf7b3a858fa8aabd05c41137
2020-11-06 01:30:18 -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
Christian Blichmann
c99076bf94 Replace std::unique_ptr<uint8_t[]> with vector
No need for the smart pointer indirection when an `std::vector` can also hold
the BPF policy.

PiperOrigin-RevId: 340809220
Change-Id: I8a63567e8042d9ff875cba739e8552db87b6901a
2020-11-05 02:03:46 -08:00
Christian Blichmann
7c30aebe2d Use Abseil hash maps instead of std::map<T>
PiperOrigin-RevId: 340807499
Change-Id: I2689bd1d32be45e3085dcc7a0ba4b8fedd7d53b0
2020-11-05 01:49:14 -08:00
Peter Lundblad
2955d20c9f Enable log forwarding from sandboxee if enabled by the supervisor.
If the sandboxer calls `IPC::EnableLogServer()` (and modifies the sandbox policy
accordingly), sandbox logs will be sent back to the sandboxer.

PiperOrigin-RevId: 340663308
Change-Id: I5e8d89314178dfd1b49fc25b8cd2dd02642be43a
2020-11-04 09:24:50 -08:00
Christian Blichmann
2acec65a58 Add an AllowAccess() convenience function to PolicyBuilder
Drive-by: Apply convenience functions in policies.
PiperOrigin-RevId: 340404977
Change-Id: I906106b61c1837d23ddaff15d8792ec79d3d3189
2020-11-03 02:21:21 -08:00
Alexandra Latysheva
a5b5cd9a02 add forgotten license to wrapper 2020-10-30 15:47:36 +00:00
Alexandra Latysheva
4bd158a68f use ctest for testing and set testing environment for using test data 2020-10-30 14:52:53 +00:00
Latysheva Alexandra
0710361ed4
update helper 2020-10-30 20:41:26 +06:00
Alexandra Latysheva
219da51823 use ctest for testing and set testing environment for using test data 2020-10-30 14:34:33 +00:00
Alexandra Latysheva
64d04a80e5 use api->sandbox() instead of send sandbox as an argument 2020-10-30 14:02:34 +00:00
Alexandra Latysheva
56615d5d57 use absl::StarusOr<Data> as a return value instead on pointer to constructed value; rename variable 2020-10-30 13:41:55 +00:00
Alexandra Latysheva
dcf397bb97 Merge branch 'libpng-master' of github.com:alexelex/sandboxed-api into libpng-master 2020-10-30 13:27:40 +00:00
Alexandra Latysheva
9068b28d28 remove default constructors; reword some errors; skip check is there is enough free space 2020-10-30 13:27:25 +00:00
Latysheva Alexandra
113e6c8229
update readme 2020-10-30 19:07:40 +06:00
Latysheva Alexandra
3a83fe68c9
rewrite readme and correct mistakes in it 2020-10-30 19:05:37 +06:00
Alexandra Latysheva
36c816c693 add small documentation to readme 2020-10-30 13:00:05 +00:00
Alexandra Latysheva
94abb95771 order targets in CMakeLists alphabetically 2020-10-30 12:46:13 +00:00
Alexandra Latysheva
bfbb4f70c4 remove default image in the example and rewrite usage 2020-10-30 12:36:42 +00:00