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Add validate_ssh_public_keys

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validate format of SSH public keys using ssh-keygen -l and
temp files.
This commit is contained in:
Fabian Grünbichler 2016-04-05 09:29:51 +02:00 committed by Dietmar Maurer
parent 344c19ff41
commit 48df47a466
1 changed files with 15 additions and 0 deletions
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15
src/PVE/Tools.pm
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@ -1307,4 +1307,19 @@ sub tempfile_contents {
return ("/proc/$$/fd/".$fh->fileno, $fh); return ("/proc/$$/fd/".$fh->fileno, $fh);
} }
sub validate_ssh_public_keys {
my ($raw) = @_;
my @lines = split(/\n/, $raw);
foreach my $line (@lines) {
next if $line =~ m/^\s*$/;
eval {
my ($filename, $handle) = tempfile_contents($line);
run_command(["ssh-keygen", "-l", "-f", $filename],
outfunc => sub {}, errfunc => sub {});
};
die "SSH public key validation error\n" if $@;
}
}
1; 1;