Commit graph

346 commits

Author SHA1 Message Date
Shea Levy
d66d9e8425 Require linux 3.13 or later for chroot
Fixes #453
2015-02-04 18:15:56 +01:00
Daniel Peebles
f46e329a13 Make inputs writeable in the sandbox (builds still can’t actually write due to user permissions) 2015-01-18 23:25:29 -05:00
Shea Levy
79ca503332 Allow using /bin and /usr/bin as impure prefixes on non-darwin by default
These directories are generally world-readable anyway, and give us the two
most common linux impurities (env and sh)
2015-01-13 15:41:46 +01:00
Eelco Dolstra
fcf57aad27 SysError -> Error 2015-01-13 11:17:56 +01:00
Eelco Dolstra
100961e370 Don't resolve symlinks while checking __impureHostDeps
Since these come from untrusted users, we shouldn't do any I/O on them
before we've checked that they're in an allowed prefix.
2015-01-13 11:16:32 +01:00
Daniel Peebles
f1151a3373 Add basic Apple sandbox support 2015-01-12 12:00:01 +01:00
Eelco Dolstra
27b7b94923 Set /nix/store permission to 1737
I.e., not readable to the nixbld group. This improves purity a bit for
non-chroot builds, because it prevents a builder from enumerating
store paths (i.e. it can only access paths it knows about).
2015-01-08 16:39:07 +01:00
Eelco Dolstra
df05f49dcd Fix building on Darwin
Fixes #433.
2015-01-06 10:49:44 +01:00
Eelco Dolstra
bd0f362d2f Revive running builds in a PID namespace 2014-12-23 17:25:06 +01:00
Eelco Dolstra
b77037b8fd Silence some warnings on GCC 4.9 2014-12-12 17:14:28 +01:00
Eelco Dolstra
f52b6c944e Fix some memory leaks 2014-12-12 15:01:16 +01:00
Eelco Dolstra
28f22b4653 Ensure we're writing to stderr in the builder
http://hydra.nixos.org/build/17862041
2014-12-12 14:35:44 +01:00
Eelco Dolstra
4acca1a5b9 Remove chatty message
This broke building with "-vv", because the builder is not allowed to
write to stderr at this point.
2014-12-12 13:43:59 +01:00
Eelco Dolstra
ad790022fd Doh 2014-12-12 13:41:00 +01:00
Eelco Dolstra
851b47bd7d Don't do vfork in conjunction with setuid 2014-12-10 18:01:01 +01:00
Eelco Dolstra
b5ed5b6e66 Rename function 2014-12-10 17:25:38 +01:00
Eelco Dolstra
b7b6e3ddec Build derivations in a more predictable order
Derivations are now built in order of derivation name, so a package
named "aardvark" is built before "baboon".

Fixes #399.
2014-11-24 16:50:46 +01:00
Eelco Dolstra
9e3389c337 Don't create unnecessary substitution goals for derivations 2014-11-24 16:50:46 +01:00
Eelco Dolstra
35aad73bb6 Fix message 2014-11-17 01:00:39 +01:00
Eelco Dolstra
8cfe939b0f Don't use ADDR_LIMIT_3GB
This gives 32-bit builds on x86_64-linux more memory.
2014-11-14 14:16:20 +01:00
Eelco Dolstra
bab8d9b52a Make ~DerivationGoal more reliable 2014-11-12 11:35:53 +01:00
Eelco Dolstra
11aef17a77 Remove comments claiming we use a private PID namespace
This is no longer the case since
524f89f139.
2014-10-29 15:49:34 +01:00
Eelco Dolstra
d98bfcbf81 On Linux, disable address space randomization 2014-09-17 17:21:13 +02:00
Eelco Dolstra
d37d012774 Settings: Add bool get() 2014-09-17 15:18:13 +02:00
Eelco Dolstra
b72e93bca8 Add disallowedReferences / disallowedRequisites
For the "stdenv accidentally referring to bootstrap-tools", it seems
easier to specify the path that we don't want to depend on, e.g.

  disallowedRequisites = [ bootstrapTools ];
2014-08-28 18:57:13 +02:00
Gergely Risko
fd61069a42 Introduce allowedRequisites feature 2014-08-28 18:23:55 +02:00
Joel Taylor
b224ac1520 fix disappearing bash arguments 2014-08-21 23:17:50 +02:00
Eelco Dolstra
524f89f139 Use unshare() instead of clone()
It turns out that using clone() to start a child process is unsafe in
a multithreaded program. It can cause the initialisation of a build
child process to hang in setgroups(), as seen several times in the
build farm:

The reason is that Glibc thinks that the other threads of the parent
exist in the child, so in setxid_mark_thread() it tries to get a futex
that has been acquired by another thread just before the clone(). With
fork(), Glibc runs pthread_atfork() handlers that take care of this
(in particular, __reclaim_stacks()). But clone() doesn't do that.

Fortunately, we can use fork()+unshare() instead of clone() to set up
private namespaces.

See also https://www.mail-archive.com/lxc-devel@lists.linuxcontainers.org/msg03434.html.
2014-08-21 14:08:09 +02:00
Eelco Dolstra
11849a320e Use proper quotes everywhere 2014-08-20 18:03:48 +02:00
Eelco Dolstra
373fad75e1 Add some color 2014-08-20 16:50:17 +02:00
Eelco Dolstra
954188af27 Filter Nix-specific ANSI escape sequences from stderr
The Nixpkgs stdenv prints some custom escape sequences to denote
nesting and stuff like that. Most terminals (e.g. xterm, konsole)
ignore them, but some do not (e.g. xfce4-terminal). So for the benefit
of the latter, filter them out.
2014-08-20 14:30:01 +02:00
Eelco Dolstra
029424d17d Make hook shutdown more reliable 2014-08-19 17:47:30 +02:00
Eelco Dolstra
632f989b51 Doh 2014-08-18 11:35:50 +02:00
Eelco Dolstra
c160ead82f Reduce verbosity 2014-08-17 19:11:50 +02:00
Eelco Dolstra
42e9ad8fd1 Propagate remote timeouts properly 2014-08-17 19:09:03 +02:00
Eelco Dolstra
daccd68999 Refactor 2014-08-04 18:02:29 +02:00
Eelco Dolstra
d5a076c36f Add option ‘build-extra-chroot-dirs’
This is useful for extending (rather than overriding) the default set
of chroot paths.
2014-08-04 18:00:00 +02:00
Eelco Dolstra
4d73e2e893 Get rid of "killing <pid>" message for unused build hooks 2014-08-04 17:27:45 +02:00
Eelco Dolstra
51485dcda2 Remove ugly hack for detecting build environment setup errors 2014-08-01 19:38:21 +02:00
Eelco Dolstra
4c4b219c07 Call commonChildInit() before doing chroot init
This ensures that daemon clients see error messages from the chroot
setup.
2014-08-01 19:29:03 +02:00
Eelco Dolstra
50dc1f5b71 Restore default SIGPIPE handler before invoking ‘man’
Fixes NixOS/nixpkgs#3410.
2014-07-31 10:31:17 +02:00
Eelco Dolstra
ee3c5d7916 Revert old useBuildHook behaviour 2014-07-19 02:25:47 +02:00
Eelco Dolstra
e196eecbe6 Allow $NIX_BUILD_HOOK to be relative to Nix libexec directory 2014-07-11 13:55:06 +02:00
Eelco Dolstra
43b64f5038 Remove tabs 2014-07-10 17:32:21 +02:00
Eelco Dolstra
8e9140cfde Refactoring: Move all fork handling into a higher-order function
C++11 lambdas ftw.
2014-07-10 16:58:09 +02:00
Eelco Dolstra
7911e4c27a Remove maybeVfork 2014-07-10 13:35:44 +02:00
Danny Wilson
ae6b631dc4 Fix compile errors on Illumos 2014-04-03 17:39:57 +02:00
Ludovic Courtès
e7720aa10a Make sure /dev/pts/ptmx is world-writable
While running Python 3’s test suite, we noticed that on some systems
/dev/pts/ptmx is created with permissions 0 (that’s the case with my
Nixpkgs-originating 3.0.43 kernel, but someone with a Debian-originating
3.10-3 reported not having this problem.)

There’s still the problem that people without
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y are screwed (as noted in build.cc),
but I don’t see how we could work around it.
2014-04-03 13:42:45 +02:00
Eelco Dolstra
1c2550a2ae boost::shared_ptr -> std::shared_ptr 2014-03-30 00:49:23 +01:00
Eelco Dolstra
acb8facbbc Fix potential segfault in waitForInput()
Since the addition of build-max-log-size, a call to
handleChildOutput() can result in cancellation of a goal.  This
invalidated the "j" iterator in the waitForInput() loop, even though
it was still used afterwards.  Likewise for the maxSilentTime
handling.

Probably fixes #231.  At least it gets rid of the valgrind warnings.
2014-03-29 22:14:11 +01:00