Commit Graph

290 Commits

Author SHA1 Message Date
Christian Blichmann
89e80d4c80 Internal change.
PiperOrigin-RevId: 316414698
Change-Id: Ib0d43bfc7c95a3029618b4ed758990f78cb25529
2020-06-15 00:59:33 -07:00
Copybara-Service
fdf5fd5854 Merge pull request #45 from cblichmann:20200609-include-guard-test
PiperOrigin-RevId: 315673526
Change-Id: If6efb2deb8dc0da8a10db26aec683c730ae2d97a
2020-06-10 05:34:35 -07:00
Christian Blichmann
c0c9d1dbf9 Copybara import of the project:
--
fd2e99fa87c34f2fb1a20052c030ad7a4139b4e1 by Christian Blichmann <mail@blichmann.eu>:

Support LLVM >= 7.0.1 in Clang based header generator

This change glosses over small API changes introduced since LLVM/Clang
7.0.1, which ships with Debian Stable "Buster". Ubuntu 18.04 LTS "Bionic"
also shipped this (and subsequently updated to version 9).

Hence, compiling the generator should now work on all reasonable Debian
based distributions.

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/sandboxed-api/pull/44 from cblichmann:20200609-llvm-version-compat fd2e99fa87c34f2fb1a20052c030ad7a4139b4e1
PiperOrigin-RevId: 315637014
Change-Id: I6585041d8bebade15e44c057b1a69287bbc0e733
2020-06-09 23:32:03 -07:00
Christian Blichmann
b02061a3d2
Add scaffolding and first test for Clang-based generator
- Fix `GetIncludeGuard()` to always uppercase
2020-06-09 13:37:52 +02:00
Christian Blichmann
726cabe2f7 Fix up generated header include paths
The "hello_sapi" example lives in a different WORKSPACE as it is intended to
show how to embed SAPI in your own projects. However, this is not compatible
with simply running `bazel build //sandboxed_api/...` after checkout.

This change simply replace `copts = ["-I."]` with `includes = ["."]`, so that
generated headers can be found reliably, regardless of how the example is
compiled.

PiperOrigin-RevId: 313782756
Change-Id: Iac26e828146b01545c81d9500f5f68fa0f2d4ddf
2020-05-29 08:13:58 -07:00
Christian Blichmann
5aff251a92 Move filewrapper to tools directory
This decouples it from the underlying build system

PiperOrigin-RevId: 313764652
Change-Id: I64de2f8533d307567de297942a3d02d26b0839f4
2020-05-29 05:40:52 -07:00
Christian Blichmann
e76e73dfe8 Merge pull request #40 from cblichmann:clang-tool
PiperOrigin-RevId: 313577454
Change-Id: I4de93e1ffca003899ae3c7110ab3fd10f700907c
2020-05-28 16:01:09 +02:00
Christian Blichmann
507eb00a90
Add sandboxee embedding
- Implement `--sapi_embed_name` and `--sapi_embed_dir` flags
- Do not emit full AST-serialization for C++ classes
2020-05-15 17:03:25 +02:00
Christian Blichmann
143e539d79 First MVP of a LibTooling based SAPI header generator
- Extract dependent types directly from the Clang AST and re-serialize
  back into compilable code
- Collect types and emit diagnostics
- Format generated code

Signed-off-by: Christian Blichmann <mail@blichmann.eu>
2020-05-15 15:35:42 +02:00
Copybara-Service
dd4e81bccb Merge pull request #39 from cblichmann:master
PiperOrigin-RevId: 311518877
Change-Id: Ib29354cb55ed6289d0aa303189c12222b9f92ea8
2020-05-14 06:17:42 -07:00
Christian Blichmann
2c8c9a489a
Add external embedding example
This change contains a "hello world"-style example library to be
sandboxed. It consists of a stand-alone CMake and Bazel project that
uses Sandboxed API as its dependency.

To use Sandboxed API in an external project, it should be enough to
copy the files in the `sandboxed_api/examples/hello_sapi` directory
as a starting point.
2020-05-14 11:40:02 +02:00
Christian Blichmann
ba47adc21d Allow empty sapi_embedded_dir flag in the header generator
PiperOrigin-RevId: 311478848
Change-Id: If94d2279989b3cfc76304bb0bb8624e0f0532ba6
2020-05-13 23:49:25 -07:00
Christian Blichmann
d6b8e0b3e3 CMake: Fix inclusion and paths for external embedding
When using SAPI from an external project via CMake, the small zlib patch
cannot be found during the config phase.

This change also fixes an oversight in that the tests depend on some of
the example code.

Regardless embedding code should set `SAPI_ENABLE_EXAMPLES` to `OFF`.
Disabling tests by setting `SAPI_ENABLE_TESTS` to `OFF` stays optional.

PiperOrigin-RevId: 311290454
Change-Id: Ibe105895859b793b20f47c89b1a9e11cbfef2e2f
2020-05-13 02:09:33 -07:00
Christian Blichmann
6d97220e5c
Use common repository prefix everywhere
Build macros in earlier versions of Bazel (pre-1.0) needed to specify
targets in a different format, depending from where they were
included/expanded at build time.

For example, a `sapi_library()` macro invocation in one of the directories
under `examples`, always needed to depend on the SAPI main library as
`//sandboxed_api:sapi`. When using SAPI from another Bazel project, the
same macro would have needed to depend on
`@com_google_sandboxed_api//sandboxed_api:sapi`. The `sapi_library()`
macro was thus checking the repository name and conditionally changed
the dependencies. This approach is brittle and as of Bazel 3.1.0 no
longer works.

This CL simple removes the conditional prefix and unconditionally uses
`@com_google_sandboxed_api`.

Tested on Bazel 1.2.1, 2.2.0 and 3.1.0
2020-05-11 16:51:53 +02:00
Christian Blichmann
aafc597630 Add zlib as dependency for examples
Similar to what the Bazel build does, this change adds zlib as an additional
dependency when `SAPI_ENABLE_EXAMPLES` is set to `ON`.

PiperOrigin-RevId: 309203959
Change-Id: I201a9e6415789afb1e058bc48cebbc0fc0004fe9
2020-04-30 04:57:33 -07:00
Sandboxed API Team
79049b09c0 Add helper function for MADV_WIPEONFORK.
BoringSSL (which is the crypto library used by most Google products) is starting to use madvise(_, _, MADV_WIPEONFORK) to protect random-number state from being duplicated by fork(). This causes extra madvise calls that sandboxes need to permit in order to continue functioning.

PiperOrigin-RevId: 309173849
Change-Id: I007dacc1ff1fd0ccc138caaa08735cfe5bc78234
2020-04-30 00:08:55 -07:00
Christian Blichmann
7ec20bd5d5 Update dependencies to latest versions
- Abseil (HEAD)
- Benchmark (HEAD)
- Google Flags (HEAD)
- Google Logging (HEAD)
- Google Test/Mock (HEAD)
- Protocol Buffers (3.11.4)

PiperOrigin-RevId: 309012925
Change-Id: I826846afb3f2c4e92180915796890fce6b5a1d6c
2020-04-29 06:45:44 -07:00
Christian Blichmann
8faccffbad Update StatusOr<> and tests
Fixes some template issues that could lead to code not compiling when it
otherwise should.

PiperOrigin-RevId: 308809964
Change-Id: I9f2f9d4aff5f1a9cb967fb705a86fd7f49114f7a
2020-04-28 06:12:58 -07:00
Christian Blichmann
a2e292792e Move .bazelrc to correct location next to WORKSPACE
PiperOrigin-RevId: 308792839
Change-Id: Id70f6bbd3ba2b8fe769eb1013a9310f00a300610
2020-04-28 03:17:28 -07:00
Christian Blichmann
dfc51704c0 Fix linker issue introduced in b2764c5
The underlying issue is with a Copybara transform and the internal Blaze BUILD file.

PiperOrigin-RevId: 308787839
Change-Id: I32af664b3eac4c925d39f50b967756198eff23f3
2020-04-28 02:30:47 -07:00
Sandboxed API Team
b2764c5937 Internal change.
PiperOrigin-RevId: 308273962
Change-Id: If41d229d37eda610eb4bf202e20dc4f5976f2333
2020-04-24 10:02:21 -07:00
Sandboxed API Team
f18f524100 Internal change.
PiperOrigin-RevId: 307871367
Change-Id: Iefae576ae58b88a72f0cd923b3e76ce560af6e58
2020-04-22 12:23:46 -07:00
Sandboxed API Team
9b85dc49c1 Split sanitizer.h into a separate library
PiperOrigin-RevId: 305327952
Change-Id: I6708729d379d019c3d299e9cb54b76338ced23bf
2020-04-07 13:26:51 -07:00
Christian Blichmann
496672c333 Cleanup calls to sapi::StatusOr<>::ValueOrDie()
PiperOrigin-RevId: 304398197
Change-Id: I85d09457a5e27f65c0792fe93aebbd8219801ef6
2020-04-02 07:42:45 -07:00
Christian Blichmann
2b2e7ac498 Bring sapi::StatusOr<> up to date with internal Abseil changes
Note: This intentionally omits perfect-forwarding value assignments. This
avoids overly complex template expressions. The regular assignments are still
efficient.
PiperOrigin-RevId: 304159053
Change-Id: I3460f46ca5779a0619cf90ae22625de8fad7669c
2020-04-01 04:40:38 -07:00
Sandboxed API Team
2fa0bf85f4 Fix an ODR violation
PiperOrigin-RevId: 303066199
Change-Id: I0cde5fce6f9538136b913edccc5a3195e0b4e503
2020-03-26 01:59:05 -07:00
Sandboxed API Team
22c6417307 Adding new build rule for sanitizer
PiperOrigin-RevId: 302687093
Change-Id: I090352c70df67e51eba79a618315b7ca9696bcfe
2020-03-24 09:54:49 -07:00
Kevin Hamacher
dadf55f647 Show a warning when tmpfs size is not specified
PiperOrigin-RevId: 302441519
Change-Id: Ia4130c9067f00ed48065ea3b4854c844e7b88f85
2020-03-23 08:44:28 -07:00
Christian Blichmann
57d374e667 Fix libffi configure directory in Bazel/CMake builds 2020-03-23 13:52:02 +01:00
Christian Blichmann
45d825b3b7 Merge branch 'master' of https://github.com/google/sandboxed-api 2020-03-22 16:47:41 +01:00
Christian Blichmann
0772d71264 Download libffi at CMake config time (fixes #35)
Drive-by:
- Make Bazel config action more robust
- Disable dependency tracking in libunwind configure

Signed-off-by: Christian Blichmann <mail@blichmann.eu>
2020-03-22 16:44:39 +01:00
Anna Sapek
4665335604 Use file::IsAbsolutePath consistently
PiperOrigin-RevId: 302073992
Change-Id: Ib3b9fbedc6e85a1abd87cbc683d8a8c3dc3daf87
2020-03-20 12:08:25 -07:00
Christian Blichmann
604b671d12 Internal change.
PiperOrigin-RevId: 301836978
Change-Id: Ic959f224701bf370294fdbbe3126edd01c615e2a
2020-03-19 09:58:28 -07:00
Christian Blichmann
69bdb54bf9 Update README, graphical assets
PiperOrigin-RevId: 301830652
Change-Id: I60a67c372869a30ff5ba575387d67700ffc20134
2020-03-19 09:27:42 -07:00
Christian Blichmann
f44cca6c98 Fix path to generated proto sources when embedding
When embedding SAPI in an external CMake project, the version of
`protobuf_generate_cpp` that we lifted from upstream protobuf produces
the wrong generated file paths.

For example, given this project structure:

```
/parent/
+-- myproject/
+-- myproject_build/  <- CMake build directory
+-- sandboxed-api/    <- Checkout from GitHub
```

And a CMake file in `myproject/CMakeLists.txt` that embeds SAPI like
this:

```
cmake_minimum_required(VERSION 3.12)
project(SandboxedTest LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_subdirectory(
  ${PROJECT_SOURCE_DIR}/../sandboxed-api
  ${PROJECT_BINARY_DIR}/sandboxed-api
)
```

Then `protobuf_generate_cpp` correctly invokes the protoc compiler to
generate
`/parent/myproject_build/sandboxed-api/sandboxed_api/proto_arg.proto.pb.cc'.
However, the path of the generated source file that is passed to the C++
compiler will be
`/parent/myproject_build/sandboxed-api/sandboxed_api/../../myproject_build/sandboxed-api/sandboxed_api/proto_arg.pb.cc`.
Note the duplicated project build directory component in the
canonicalized version:
`/parent/myproject_build/myproject_build/sandboxed-api/sandboxed_api/proto_arg.pb.cc`.

This change simple omits the computation of any relative file paths and
simply uses `_pb_PROTOC_OUT_DIR` which defauls to
`CMAKE_CURRENT_BINARY_DIR`, which should always contain the correct
path.

Signed-off-by: Christian Blichmann <mail@blichmann.eu>
2020-03-18 18:47:02 +01:00
bielec
d17482e2eb Split network_proxy example to 2 examples: with automatic handler, and without.
Created documentation for network proxy. fixed 2 things in documentation (namespaces are enabled by default for a while).

PiperOrigin-RevId: 300321016
Change-Id: Id9c54b29551e8d3b70e814e2fdbfee594126aa90
2020-03-11 07:32:50 -07:00
Christian Blichmann
f6c3db4c6e Replace sapi::Status with absl::Status
PiperOrigin-RevId: 297614681
Change-Id: I89fe1357a172ed4d28df6dd84b80fee364ce1c14
2020-02-27 09:24:12 -08:00
Sandboxed API Team
a5d931ec5f Qualify uses of std::string
PiperOrigin-RevId: 297528932
Change-Id: I750c43e356be55a5bd37a8bb59d998238bd8f1bb
2020-02-27 00:03:55 -08:00
Maciej Szawłowski
edd6b437ae Filter functions based on files we scan.
Currently we extract all functions from the compilation unit - it doesn't really make sense as it will try to process functions in included files too.
As we require sapi_in flag, we have information which files are of interest.

This change stores the top path in _TranslationUnit and uses it when looking for function definitions to filter only functions from the path we provided.

PiperOrigin-RevId: 297342507
Change-Id: Ie411321d375168f413f9f153a606c1113f55e79a
2020-02-26 06:02:15 -08:00
Sandboxed API Team
6332df5ef6 Fix or ignore type errors generated by the next release of pytype.
The next release contains one major change: for function parameter annotations,
pytype will no longer treat (x: X = None) as equivalent to
(x: Optional[X] = None). This pytype behavior was based on an outdated version
of the type-checking spec. Annotations that were relying on the behavior now
need to explicitly declare themselves as Optional.

PiperOrigin-RevId: 297065077
Change-Id: Iade679e5928bb3839485e8b8571945456ba6e982
2020-02-25 01:15:54 -08:00
bielec
5a4e3f3d29 Now network proxy server supports IP filtering. API to policybuilder is added to make a list of allowed pairs of allowed IP, mask and port where mask and port are optional.
PiperOrigin-RevId: 296206385
Change-Id: I53b23122abece1fe318ed4c6a7e37bf3228c8f5f
2020-02-20 07:45:44 -08:00
Christian Blichmann
5d81c822d8 Automated rollback of commit e56f562fe2.
PiperOrigin-RevId: 296178631
Change-Id: I0f871aeecd70e9d2f99c7d52d94c6043a1668325
2020-02-20 04:26:37 -08:00
Maciej Szawłowski
fc514451e0 Internal BUILD changes
PiperOrigin-RevId: 296174640
Change-Id: I94c8e36d76d6cbb2b9d65f35d8700018b62d3db1
2020-02-20 04:26:23 -08:00
Sandboxed API Team
e56f562fe2 Automated rollback of commit 4eede550e7.
PiperOrigin-RevId: 295946052
Change-Id: Ie8c23fe8eec99ab52245ae7f482f1e6b99ec010e
2020-02-19 05:19:15 -08:00
Christian Blichmann
4eede550e7 Prepare for upcoming changes in Abseil
- Move canonical errors into status.

PiperOrigin-RevId: 295941935
Change-Id: I9408d21b6d34239b0ef3f3cd24975f39f1405505
2020-02-19 04:43:29 -08:00
Christian Blichmann
d578b18c22 Modernize the transaction API
PiperOrigin-RevId: 295712938
Change-Id: Iaf4c9668bb0b48555679fef822fe424277540d1f
2020-02-18 05:27:38 -08:00
Wiktor Garbacz
5b1119aa6d Internal change
PiperOrigin-RevId: 295579669
Change-Id: I2488a87a78cf76f0d4ddf73d115e443bd801e420
2020-02-17 06:54:52 -08:00
Sandboxed API Team
05280287e0 Automated rollback of commit 800339d672.
PiperOrigin-RevId: 294644781
Change-Id: I88ad35abd96468476294039a41b6f2a8234db6ca
2020-02-17 10:39:08 +01:00
bielec
800339d672 Now network proxy server supports IP filtering. API to policybuilder is added to make a list of allowed pairs of allowed IP, mask and port where mask and port are optional.
PiperOrigin-RevId: 294640297
Change-Id: I4c6520685a658f8b7762af238588830f71b3f54a
2020-02-17 10:38:44 +01:00
Wiktor Garbacz
f1ce6fcb87 Internal change
PiperOrigin-RevId: 292529030
Change-Id: Ie6b315d9edd5f253386474be4afff1a59e24a91e
2020-01-31 05:39:25 -08:00
Sandboxed API Team
daa1c7a64e Allow sandboxee to read from /proc when sanitizers are allowed.
Sanitizers read from /proc. For example:
69445f095c/lib/sanitizer_common/sanitizer_linux.cpp (L1101)

PiperOrigin-RevId: 292363903
Change-Id: Icc383ededcad363b4e96f5551f140f012b07b495
2020-01-30 09:30:42 -08:00
Sandboxed API Team
b9c866410d Replace deprecated thread annotations macros.
PiperOrigin-RevId: 292326427
Change-Id: Iebd745bf0c6b0b14e090462a9df44ebd7d374c7d
2020-01-30 05:07:40 -08:00
Sandboxed API Team
54cd192442 Replace deprecated thread annotations macros.
PiperOrigin-RevId: 292326369
Change-Id: I47cb8416b198872c96921207e257745451285680
2020-01-30 05:06:55 -08:00
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
Wiktor Garbacz
d88c9f7598 Log mount flags in human readable format
PiperOrigin-RevId: 291690800
Change-Id: I6c4acdad93aeed29616d1ea44f797dad6fc7f277
2020-01-27 03:19:56 -08:00
Wiktor Garbacz
d74215d30d Properly test read-only mounts
PiperOrigin-RevId: 291337704
Change-Id: I806d0d09051ab205813d6626ea70e9e57a28a7a5
2020-01-24 02:38:11 -08:00
Wiktor Garbacz
e3d638466d Internal change
PiperOrigin-RevId: 290621061
Change-Id: I4b575ac65a9c225453552db74416eed45f1f4ebd
2020-01-20 08:35:24 -08:00
Wiktor Garbacz
bd22a18f87 Internal change
PiperOrigin-RevId: 290586117
Change-Id: I637ca27121ef541d48a717903496cab256214a0a
2020-01-20 02:55:04 -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
Wiktor Garbacz
96d9ce90e5 Properly set mount flags
PiperOrigin-RevId: 290052082
Change-Id: I35222d25a24c3d641a998b2734b90bd178759df6
2020-01-16 06:05:11 -08:00
Wiktor Garbacz
c2bd47e978 Change mount propagation to private
PiperOrigin-RevId: 289639932
Change-Id: Iac976134d5f43dcdfe895446d7caab463cc70d1a
2020-01-14 06:32:23 -08:00
Christian Blichmann
18776b6f16 Refactor syscall definitions to rely less on macros
PiperOrigin-RevId: 288478535
Change-Id: I56bf8b8817f31d60db4726b2847f8400215b7b8c
2020-01-07 05:27:21 -08:00
Sandboxed API Team
3e442b252c Allow stack trace collection when namespaces are disabled, if sandbox_libunwind_crash_handler==false.
PiperOrigin-RevId: 288267119
Change-Id: I5fce1b28521d3d685186717f153f20fb498c94e2
2020-01-06 02:34:03 -08:00
Sandboxed API Team
aea1ecd58d Improve diagnostics when dynamically linked binary is sandboxed, but can't be exec'd.
PiperOrigin-RevId: 286391400
Change-Id: I016deb34eb895480131da24bc95a6244d92f3710
2019-12-19 07:48:32 -08:00
Wiktor Garbacz
e969deea33 Global deadline for ptrace attach instead of per process
PiperOrigin-RevId: 286196033
Change-Id: Ic456b881c18518c4b52ca051fa5c58590794da17
2019-12-18 08:23:55 -08:00
Wiktor Garbacz
7125458c5d forkserver: Remove order dependent tests
Sending -1 as fd will fail and take forkserver down.
This should not happen normally so turned it into a check.

PiperOrigin-RevId: 285391908
Change-Id: Idbb05004c36cb0be57be1bd26df1c57cecfb0019
2019-12-13 06:59:01 -08:00
Sandboxed API Team
4608a7baea Explicitly export files needed by other packages
PiperOrigin-RevId: 283942197
Change-Id: If1287d2544b2161e3087fb7f5f5395f69a2eb741
2019-12-05 03:33:32 -08:00
Christian Blichmann
072636f67e Force build in C++17 mode without a custom CROSSTOOL
PiperOrigin-RevId: 283706006
Change-Id: I0b6ddd36725ccf165a446ae94a16898146199d29
2019-12-04 01:03:21 -08:00
Wiktor Garbacz
ece90e0bda Fix resource leak
Resulted in a lot of zombie processes.

PiperOrigin-RevId: 283545337
Change-Id: Ia6b2fd24fc6fc0eed4a7aa415e264618739e8234
2019-12-03 07:59:18 -08:00
Wiktor Garbacz
035965060a Create initial namespaces on demand
PiperOrigin-RevId: 283321826
Change-Id: I746ce726b834273fd8a8e0de36b311c46e42d57a
2019-12-02 05:31:42 -08:00
Sandboxed API Team
44443779bc Internal change
PiperOrigin-RevId: 282945153
Change-Id: I26d4a9d21574fad2751708fe4bb9b38ecdd8131f
2019-11-28 08:07:00 -08:00
Christian Blichmann
02912f8eff Disable ABI warning about passing long double unions when using Bazel
PiperOrigin-RevId: 282349626
Change-Id: Ieb3df661f215450e750c586b2470047b1575c156
2019-11-25 07:03:24 -08:00
Christian Blichmann
5c38f62ba7 Fix unused warning for IsFdOpen()
PiperOrigin-RevId: 282346983
Change-Id: I7010caf0e6f3ddb420ef992f6aa2554d540667a3
2019-11-25 06:44:14 -08:00
Christian Blichmann
4f892864c8 Update dependencies to newer version
- Same upstream dependency versions for CMake and Bazel
- Use maybe() from build_defs to conditionally define Bazel repositories

PiperOrigin-RevId: 282331418
Change-Id: I8a7db84a1d3115f3c1f31cc1dfcc8c29fe391a62
2019-11-25 04:32:01 -08:00
Kevin Hamacher
3cbd871454 Allow sandboxee c-strings to be read as std::string
PiperOrigin-RevId: 281960106
Change-Id: I54256dda2b6b0374d0f2ce3f762370478b912683
2019-11-22 07:00:03 -08:00
Kevin Hamacher
a193cb4ed7 sandboxed_api: Expose strlen in the rpc channel
PiperOrigin-RevId: 281958333
Change-Id: If15d7d5b915fec3c5521ef53ee44c58d7482d1bc
2019-11-22 06:44:31 -08:00
Christian Blichmann
d9d45bcfe5 Fix generator not finding libclang
PiperOrigin-RevId: 281745276
Change-Id: I8c55b142a72265f577d6d1e3b673890529428c21
2019-11-21 07:33:03 -08:00
Christian Blichmann
d47c066112 Enable sapi_test target in CMake, add Benchmark dependency
PiperOrigin-RevId: 281719298
Change-Id: Idd2570fff4907c81cdab1070bd1f3e41e29c76f6
2019-11-21 04:04:14 -08:00
Christian Blichmann
6dd97f5073 Move dependency on libdl into build defs, like CMake
PiperOrigin-RevId: 281699435
Change-Id: Iced13e98578b2c36a1eeac71fd02a6d7ed87a8fb
2019-11-21 01:36:34 -08:00
Christian Blichmann
ae2954f598 Build in C++17 mode.
Practically all current compilers fully support C++17 by now, with the exception of `filesystem` (which we won't use).

PiperOrigin-RevId: 281494879
Change-Id: Ia0ef650ede4e5907e4a6421b8ad11743c8bae88f
2019-11-20 04:40:09 -08:00
Wiktor Garbacz
8a7d0d1cb3 Use a nested userns&mntns to pre-pivot_root
This addresses a latency issue - chroot_fs_refs called inside pivot_root
in the kernel can take several milliseconds on machines with many threads
running.
This might not always reduce latency for custom forkservers, as additional
fork can be more costly than pivot_root.

PiperOrigin-RevId: 281306284
Change-Id: If503ac76a70e5438e94caf708d79cb0219c66def
2019-11-19 09:02:28 -08:00
Wiktor Garbacz
1673ade4e4 Remount chroot as read-only
PiperOrigin-RevId: 280394655
Change-Id: I1490b7dfbbca3d91f5efb4dd5800397c9da57da8
2019-11-14 03:51:26 -08:00
Wiktor Garbacz
a1b291d44a Fix mount entries listing for tmpfs
PiperOrigin-RevId: 276447076
Change-Id: Ia5873e34327c281e5c9fb66f5f58a0dd49ba10b0
2019-10-24 02:37:54 -07:00
Sandboxed API Team
282f2d65e7 Fix a file descriptor leak in sandbox2::Executor.
PiperOrigin-RevId: 276294193
Change-Id: I9def39a41704db9948735c259e435ccfc71bacc5
2019-10-23 09:52:07 -07:00
Kevin Hamacher
4da8f68aa8 Rework stacktrace mounttree logic
The previous one was not quite correct in cases where the outside binary path
did not match the inside path. This should be fixed with this.

PiperOrigin-RevId: 276075886
Change-Id: I1c7c4fa0191960437a2d2360b805c7098b1407c9
2019-10-22 09:05:33 -07:00
Christian Blichmann
254abe04fe Use unified diff for zlib patch
PiperOrigin-RevId: 276075544
Change-Id: Icf06e360a400834e7304c2bde34954dbc71f135f
2019-10-22 09:04:29 -07:00
Wiktor Garbacz
a7cfbb92a6 Remove uneeded read-only remount
Caused failures if root is mounted as nodev, nosuid etc.
Root is pivoted and unmounted right after this anyhow.

PiperOrigin-RevId: 273707731
Change-Id: I75f1edaf2877c096e4f5bb7dc1b2bb8eb5c437a3
2019-10-09 02:47:38 -07:00
Kristj?n J?nsson
78824353d1 Make PolicyBuilder a value class.
This makes the class more ergonomic because
* You don't have to heap allocate the builder.
* You can create a policy builder "template" and re-use it across sandboxes to avoid repetitive work.

PiperOrigin-RevId: 273555679
Change-Id: I4084ee9c74f95ebfde873eb0dc021b3b3cdc5ea2
2019-10-08 10:45:45 -07:00
Sandboxed API Team
9931593fdc Corrects typo in link
PiperOrigin-RevId: 273248066
Change-Id: I37682d1b82fbe0b0e06d43dfe511da0d6aaa8c5a
2019-10-07 02:36:35 -07:00
Christian Blichmann
c6b8e301e4 This fixes broken _proto_cc_cc_proto build target suffixes.
These where inadvertently introduced in an internal cleanup change.

This change also removes a C++17-ism in var_proto.h. To make things easier for
downstream projects, we should stick to C++11 for the time being.

PiperOrigin-RevId: 271117700
Change-Id: I4eaacec88be16e1a561d3f77a61acce0a1af0b9d
2019-09-25 07:13:58 -07:00
Sandboxed API Team
ce46cb3fef internal BUILD file cleanup.
PiperOrigin-RevId: 270906748
Change-Id: I6a79c2f84a1d8a9fcb91061caa5f9e538fa83cba
2019-09-24 08:12:21 -07:00
Kevin Hamacher
1cf9bf8ab6 Internal change
PiperOrigin-RevId: 270878802
Change-Id: I4c946fdb5f566909eaead35a3050a99ab9047553
2019-09-24 04:50:18 -07:00
Kevin Hamacher
c337ea117e Return descriptive string if stack-traces are disabled
PiperOrigin-RevId: 270876245
Change-Id: I899a4628541712a212aa24d3a01d48d9b070c734
2019-09-24 04:27:09 -07:00
Kevin Hamacher
51d1a0e8ba Rollback of an internal change
PiperOrigin-RevId: 270874732
Change-Id: I69538a0a37ba008a41220fe9d77b3e59f8d06610
2019-09-24 04:11:52 -07:00
Sandboxed API Team
6131774256 internal BUILD file cleanup
PiperOrigin-RevId: 270833113
Change-Id: Ie8b2ab2486b7ca224f37d5fc3a07674d15e1b458
2019-09-23 22:24:27 -07:00
Sandboxed API Team
b390354794 internal BUILD file cleanup
PiperOrigin-RevId: 270833110
Change-Id: Ifc075bd59cf9e25d0c4ecc165592906f05875ee8
2019-09-23 22:23:57 -07:00
Sandboxed API Team
cee4ac35ae Internal BUILD file cleanup
PiperOrigin-RevId: 270672739
Change-Id: I752113fc1fa5fa3f1585b918c89ca68c058db098
2019-09-23 07:33:08 -07:00
Sandboxed API Team
a6285716f1 Internal cleanup
PiperOrigin-RevId: 270653397
Change-Id: I495a30cffdfa932da045ebed626bf97f1cb68bb2
2019-09-23 05:14:00 -07:00
Sandboxed API Team
ad2521a1e8 Internal cleanup
PiperOrigin-RevId: 270631972
Change-Id: Ifd8db261bd5380fd14357a283fb9fd67c7d25fa0
2019-09-23 02:31:54 -07:00
Wiktor Garbacz
d43d09c746 fail soft if sandboxee exits before init is ptraced
PiperOrigin-RevId: 270254470
Change-Id: Ifa13f4fe0e7ae91b79fc689e1d7dcb2a49b09cde
2019-09-20 06:13:44 -07:00