This broke in #11005. Any number of PathSubstitutionGoals would
be woken up by a single build slot becoming available. If there
are a lot of substitution goals active, this could lead to us
running out of file descriptors (especially on macOS where the
default limit is 256).
(cherry picked from commit a33cb8af56)
In d60c3f7f7c, this was changed to close a
hole in the sandbox. Unfortunately, this was too restrictive such that it
made local port binding fail, thus making derivations that needed
`__darwinAllowLocalNetworking` gain nearly nothing, and thus largely
fail (as the primary use for it is to enable port binding).
This unfortunately does mean that a sandboxed build process can, in
coordination with an actor outside the sandbox, escape the sandbox by
binding a port and connecting to it externally to send data. I do not
see a way around this with my experimentation and understanding of the
(quite undocumented) macOS sandbox profile API. Notably it seems not
possible to use the sandbox to do any of:
- Restrict the remote IP of inbound network requests
- Restrict the address being bound to
As such, the `(local ip "*:*")` here appears to be functionally no
different than `(local ip "localhost:*")` (however it *should* be
different than removing the filter entirely, as that would make it also
apply to non-IP networking). Doing `(allow network-inbound (require-all
(local ip "localhost:*") (remote ip "localhost:*")))` causes listening
to fail.
Note that `network-inbound` implies `network-bind`.
(cherry picked from commit 00f6db36fd)
In the FFI world we have many tools that are not gcc/clang and therefore
not always support the latest C standard. This fixes support with cffi
i.e. used in https://github.com/tweag/python-nix
(cherry picked from commit 739418504c)
It is not an error if queryPathInfo() indicates that a path does not
exist in the substituter.
Fixes#11198. This was broken in 846869da0e.
(cherry picked from commit 0a00bd07b2)
It was failing with:
error: AWS error fetching 'nix-cache-info': The specified bucket does not exist
because `S3BinaryCacheStoreImpl` had a `bucketName` field that
shadowed the inherited `bucketName from `S3BinaryCacheStoreConfig`.
(cherry picked from commit 9b5b7b7963)
We didn't even realize you *could* use this syntax with -E and -f, much
less that the attribute path could be *empty*.
Change-Id: Id1a6715609f3a76a5ce477bd43a7832effbbe07b
* docs: unify documentation on search paths
- put all the information on search path semantics into `builtins.findFile`
- put all the information on determining the value of `builtins.nixPath` into the
`nix-path` setting
maybe `builtins.nixPath` is a better place for this, but those bits
can still be moved around now that it's all next to each other.
- link to the syntax page for lookup paths from all places that are
concerned with it
- add or clarify examples
- add a test verifying a claim from documentation
- move <sys/resource.h> from a __linux__ block to a !_WIN32 block: this
matches what the actual code does, using getrlimit() & setrlimit() in
!_WIN32 blocks
- drop <sys/mount.h>, which is not portable, and it is not used
This is not allowed in C++20, and GCC 14 warns about it:
../src/libutil/ref.hh:26:20: warning: template-id not allowed for constructor in C++20 [-Wtemplate-id-cdtor]
26 | explicit ref<T>(const std::shared_ptr<T> & p)
| ^
../src/libutil/ref.hh:26:20: note: remove the '< >'
../src/libutil/ref.hh:33:21: warning: template-id not allowed for constructor in C++20 [-Wtemplate-id-cdtor]
33 | explicit ref<T>(T * p)
| ^
../src/libutil/ref.hh:33:21: note: remove the '< >'
This change updates the seccomp profile to return ENOTSUP for getxattr
functions family. This reflects the behavior of filesystems that don’t
support extended attributes (or have an option to disable them), e.g.
ext2.
The current behavior is confusing for some programs because we can read
extended attributes, but only get to know that they are not supported
when setting them. In addition to that, ACLs on Linux are implemented
via extended attributes internally and if we don’t return ENOTSUP, acl
library converts file mode to ACL.
https://git.savannah.nongnu.org/cgit/acl.git/tree/libacl/acl_get_file.c?id=d9bb1759d4dad2f28a6dcc8c1742ff75d16dd10d#n69
The internal "completionCallback" and "listPossibleCallback" helpers
are used only when building with editline; hence, do not build then
when using readline, matching their usage in
"ReadlineLikeInteracter::init()".
By syncing with Nixpkgs, we reuse the same derivation, which is
generally a good idea, and has the benefit that it is transitively
a channel blocker.
Changes:
- https://github.com/NixOS/nixpkgs/pull/163313 (SuperSandro2000)
> nix: disable big-parallel for aws-sdk-cpp
> aws-sdk-cpp only takes ~1m52s on a 4 core machine under 50% load
> which does not justify the requirement on big parallel.
> Tested with `nix-build -A nixVersions.nix_2_6.aws-sdk-cpp`.
> I can finally build nix without requiring a big-parallel machine.
- https://github.com/NixOS/nixpkgs/pull/227506 (Artturin)
> nix: use [ ] instead null to empty requiredSystemFeatures
> fixes 'error: value is null while a list was expected' with 'nixpkgs.hostPlatform.gcc.arch = "x86_64";'
This was done originally because std::smatch does not accept `const char
*` as iterators. However, this was because we should have been using
std::cmatch instead.
(cherry picked from commit 12a5838d11)
Found by looking for interesting asan reports from the test suite.
What happened here is that name got overwritten, but it was what
actually held the backing memory for the thing it got overwritten by,
which was a by-reference value coming out of std::regex.
Due to absurd reasons I cannot seem to use a string_view iterator here,
so I just copy the string with a longer lifetime instead. idk lol
==3796364==ERROR: AddressSanitizer: heap-use-after-free on address 0x503000014c61 at pc 0x74843523bf1d bp 0x7ffc68351330 sp 0x7ffc68350af0
READ of size 3 at 0x503000014c61 thread T0
0 0x74843523bf1c in __asan_memcpy (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x159f1c)
1 0x6403cf6cbff4 in std::char_traits<char>::copy(char*, char const*, unsigned long) /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/char_traits.h:445:33
<...>
7 0x6403cf6cbff4 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>::str() const /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/regex.h:966:6
8 0x6403cf6cbff4 in std::__cxx11::sub_match<__gnu_cxx::__normal_iterator<char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>::operator std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>() const /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/regex.h:955:16
9 0x6403cf6cbff4 in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:37:26
10 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
11 0x6403cf873331 in CmdProfileDiffClosures::run(nix::ref<nix::Store>) /home/jade/lix/lix2/build/src/nix/profile.cc:479:17
<...>
0x503000014c61 is located 17 bytes inside of 21-byte region [0x503000014c50,0x503000014c65)
freed by thread T0 here:
0 0x748435250470 in operator delete(void*) (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x16e470)
<...>
6 0x6403cf6cbda2 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>::~basic_string() /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/basic_string.h:792:9
7 0x6403cf6cbda2 in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:36:13
8 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
<...>
previously allocated by thread T0 here:
0 0x74843524fa38 in operator new(unsigned long) (/nix/store/mzhqknx2mc94jdz4n320hn1lml86398y-clang-wrapper-17.0.6/resource-root/lib/linux/libclang_rt.asan-x86_64.so+0x16da38)
<...>
9 0x6403cf6cb68c in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>::basic_string<std::basic_string_view<char, std::char_traits<char>>, void>(std::basic_string_view<char, std::char_traits<char>> const&, std::allocator<char> const&) /nix/store/14c6s4xzhy14i2b05s00rjns2j93gzz4-gcc-13.2.0/include/c++/13.2.0/bits/basic_string.h:784:4
10 0x6403cf6cb68c in nix::getClosureInfo[abi:cxx11](nix::ref<nix::Store>, nix::StorePath const&) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:33:21
11 0x6403cf6cd70c in nix::printClosureDiff(nix::ref<nix::Store>, nix::StorePath const&, nix::StorePath const&, std::basic_string_view<char, std::char_traits<char>>) /home/jade/lix/lix2/build/src/nix/diff-closures.cc:54:25
12 0x6403cf873331 in CmdProfileDiffClosures::run(nix::ref<nix::Store>) /home/jade/lix/lix2/build/src/nix/profile.cc:479:17
<...>
(cherry-picked from b9b1bbd22f)
