From Chromium commit comment:
Sandbox: Add support for file system policies that use implied device paths.
A policy rule of the form \HarddiskVolume0\Foo\bar allows sandboxed code
to use \\.\HarddiskVolume0\Foo\bar directly.
This also removes turning off optimization for the Load function. That was an
attempt to fix the side-by-side loading. It may also have helped with ensuring
that the memsets were not optimized, but that has been fixed by Bug 1208892.
Bonus fix: don't start the chroot helper unless we're going to use
it. For this to matter, you'd need a system with unprivileged user
namespaces but no seccomp-bpf (or fake it with env vars) *and* to set
media.gmp.insecure.allow, so this is more to set a good example for
future changes to this code than for functional reasons.
The patch removes 455 occurrences of FAIL_ON_WARNINGS from moz.build files, and
adds 78 instances of ALLOW_COMPILER_WARNINGS. About half of those 78 are in
code we control and which should be removable with a little effort.
--HG--
extra : rebase_source : 82e3387abfbd5f1471e953961d301d3d97ed2973
This also moves the initialization of the sandbox TargetServices to earlier in
plugin-container.cpp content_process_main, because it needs to happen before
xul.dll loads.
This gives us a logging macro that's safe to use in async signal context
(cf. bug 1046210, where we needed this and didn't have it).
This patch also changes one of the format strings to work with
SafeSPrintf's format string dialect; upstream would probably take a
patch to handle those letters, but this is easier.
This also imports the unit tests but doesn't arrange to run them.
Including the tests in our xul-gtest is possible but not trivial: there
are logging dependencies, and they use a different #include path for
gtest.h (which we'd need to patch).
Upstream revision: df7cc6c04725630dd4460f29d858a77507343b24.
This gives us a logging macro that's safe to use in async signal context
(cf. bug 1046210, where we needed this and didn't have it).
This patch also changes one of the format strings to work with
SafeSPrintf's format string dialect; upstream would probably take a
patch to handle those letters, but this is easier.
This does not include the upstream unit tests. Including the tests
in our xul-gtest is possible but not trivial: there are logging
dependencies, and they use a different #include path for gtest.h (which
we'd need to patch).
Upstream revision: df7cc6c04725630dd4460f29d858a77507343b24.
We can now keep the part of the policy implemented by upcalls to
userspace in the same place as the part of the policy that's handled
entirely in the kernel. This will become more useful in the future
(e.g., bug 930258).
