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@@ -0,0 +1,78 @@
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+import os
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+
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+import infra.basetest
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+
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+
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+class TestIptables(infra.basetest.BRTest):
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+ # The iptables package has _LINUX_CONFIG_FIXUPS, so we cannot use
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+ # the runtime test pre-built Kernel. We need to compile a Kernel
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+ # to make sure it will include the required configuration.
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+ config = \
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+ """
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+ BR2_aarch64=y
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+ BR2_TOOLCHAIN_EXTERNAL=y
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+ BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
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+ BR2_LINUX_KERNEL=y
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+ BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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+ BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.82"
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+ BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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+ BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
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+ BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
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+ BR2_PACKAGE_IPTABLES=y
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+ BR2_TARGET_ROOTFS_CPIO=y
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+ BR2_TARGET_ROOTFS_CPIO_GZIP=y
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+ # BR2_TARGET_ROOTFS_TAR is not set
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+ """
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+
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+ def test_run(self):
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+ img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
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+ kern = os.path.join(self.builddir, "images", "Image")
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+ self.emulator.boot(arch="aarch64",
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+ kernel=kern,
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+ kernel_cmdline=["console=ttyAMA0"],
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+ options=["-M", "virt",
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+ "-cpu", "cortex-a57",
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+ "-m", "256M",
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+ "-initrd", img])
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+ self.emulator.login()
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+
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+ # We check the program can execute.
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+ self.assertRunOk("iptables --version")
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+
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+ # We delete all rules in all chains. We also set default
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+ # policies to ACCEPT for INPUT and OUPUT chains. This should
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+ # already be the case (default Kernel config). This makes sure
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+ # this test starts from a known state and also those common
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+ # command invocations works.
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+ self.assertRunOk("iptables --flush")
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+ self.assertRunOk("iptables --policy INPUT ACCEPT")
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+ self.assertRunOk("iptables --policy OUTPUT ACCEPT")
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+
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+ # We add a filter rule to drop all the ICMP protocol to the
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+ # IPv4 destination 127.0.0.2, in the INPUT chain. This should
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+ # block all pings (icmp echo-requests).
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+ cmd = "iptables --append INPUT"
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+ cmd += " --protocol icmp --destination 127.0.0.2 --jump DROP"
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+ self.assertRunOk(cmd)
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+
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+ # We check we can list rules.
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+ self.assertRunOk("iptables --list")
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+
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+ # A ping to 127.0.0.1 is expected to work, because it's not
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+ # matching our rule. We expect 3 replies (-c), with 0.5s
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+ # internal (-i), and set a maximum timeout of 2s.
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+ ping_cmd_prefix = "ping -c 3 -i 0.5 -W 2 "
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+ self.assertRunOk(ping_cmd_prefix + "127.0.0.1")
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+
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+ # A ping to 127.0.0.2 is expected to fail, because our rule is
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+ # supposed to drop it.
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+ ping_test_cmd = ping_cmd_prefix + "127.0.0.2"
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+ _, exit_code = self.emulator.run(ping_test_cmd)
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+ self.assertNotEqual(exit_code, 0)
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+
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+ # We delete our only rule #1 in the INPUT chain.
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+ self.assertRunOk("iptables --delete INPUT 1")
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+
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+ # Since we deleted the rule, the ping test command which was
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+ # supposed to fail earlier is now supposed to succeed.
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+ self.assertRunOk(ping_test_cmd)
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Julien Olivain