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From 57e9ee0f19098d56995955f6692437affdf94041 Mon Sep 17 00:00:00 2001
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From: Alexey Bogdanenko <alexey@bogdanenko.com>
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Date: Tue, 11 Dec 2018 16:55:34 +0300
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Subject: [PATCH] udev-test: check if permitted to create block device nodes
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(cherry picked from commit dbfbc6c4e34366033cb340e8b0c3cbca683ff6f5)
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Related: #1642728
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---
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 test/udev-test.pl | 8 ++++++++
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 1 file changed, 8 insertions(+)
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diff --git a/test/udev-test.pl b/test/udev-test.pl
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index eb76ebd72e..957cda541c 100755
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--- a/test/udev-test.pl
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+++ b/test/udev-test.pl
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@@ -1554,6 +1554,14 @@ sub udev_setup {
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                 return 0;
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         }
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+        # check if we are permitted to create block device nodes
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+        my $block_device_filename = $udev_dev . "/sda";
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+        if (system("mknod", $block_device_filename, "b", "8", "0")) {
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+                warn "unable to create $block_device_filename";
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+                return 0;
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+        }
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+        unlink $block_device_filename;
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+
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         system("cp", "-r", "test/sys/", $udev_sys) && die "unable to copy test/sys";
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         system("rm", "-rf", "$udev_run");