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Ruby works now. I need to replace the use of glob() since it has size limits

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This commit is contained in:
Ryan Voots 2017-05-06 06:45:06 -04:00
parent c4d914c308
commit b285d3a659
2 changed files with 10 additions and 11 deletions
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8
bin/testeval.sh
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@ -1,15 +1,11 @@
#!/bin/bash
read -r -d '' CODE <<'EOC'
perl5.5 BEGIN {$ENV{TMPDIR}="/tmp"}; use File::Temp; File::Temp->new()."";
ruby print "Hello World";
EOC
echo --------
echo $CODE
echo --------
rm -f ./jail/noseccomp
echo $CODE | sudo strace -f -ojail/killed.log /home/ryan/perl5/perlbrew/perls/perlbot-inuse/bin/perl5* ./bin/test_eval.pl
touch ./jail/noseccomp
echo $CODE | sudo strace -f -ojail/alive.log /home/ryan/perl5/perlbrew/perls/perlbot-inuse/bin/perl5* ./bin/test_eval.pl
rm -f ./jail/noseccomp
echo $CODE | sudo strace -f -o killed.log timeout 30 /home/ryan/perl5/perlbrew/perls/perlbot-inuse/bin/perl5* ./bin/test_eval.pl

13
lib/EvalServer/Seccomp.pm
View file

@ -28,7 +28,7 @@ my ($O_DIRECTORY, $O_CLOEXEC, $O_NOCTTY, $O_NOFOLLOW) = (00200000, 02000000, 000
# TODO this needs some accessors to make it easier to define rulesets
our %rule_sets = (
default => {
include => ['time_calls', 'file_readonly', 'stdio', 'exec_wrapper', 'file_write', 'file_tty'],
include => ['time_calls', 'file_readonly', 'stdio', 'exec_wrapper', 'file_write', 'file_tty', 'file_opendir'],
rules => [{syscall => 'mmap'},
{syscall => 'munmap'},
{syscall => 'mremap'},
@ -89,12 +89,13 @@ our %rule_sets = (
],
},
file_opendir => {
permute => {open_modes => [$O_DIRECTORY]},
rules => [{syscall => 'getdents'}],
rules => [{syscall => 'getdents'},
{syscall => 'open', rules => [['1', '==', $O_DIRECTORY|&POSIX::O_RDONLY|&POSIX::O_NONBLOCK|$O_CLOEXEC]]},
],
include => ['file_open'],
},
file_tty => {
permute => {open_modes => [$O_NOCTTY, ]},
permute => {open_modes => [$O_NOCTTY]},
include => ['file_open'],
},
file_readonly => {
@ -279,11 +280,13 @@ sub build_seccomp {
croak "Permutation on syscall rule without actual permutation specified" if (!@perm_on);
my $glob_string = join '__', map { "{".join(",", @{$full_permute{$_}})."}" } @perm_on;
my @globs = grep {defined $_ && $_ ne ''} glob $glob_string;
die "Too many permute options for syscall $syscall" unless (@globs >= 1);
for my $g_value (glob $glob_string) {
my %pvals;
@pvals{@perm_on} = split /__/, $g_value;
push @{$comp_rules{$syscall}},
[map {
my @r = @$_;