[Buildroot] [PATCH] support/testing: add openssh runtime test

[Yann E. MORIN <yann.morin.1998@free.fr>]

Romain, All,

On 2020-08-17 23:55 +0200, Romain Naour spake thusly:
> From: Romain Naour <romain.naour@smile.fr>
> 
> This new runtime test is based on test_dropbear.py. The only required change
> is to use "-oStrictHostKeyChecking=no" instead of "-y" to accept the new key.
> 
> Since the base test infra only provide a uClibc-ng toolchain, add a second
> test using a glibc based internal toolchain.
> 
> For example, this allow to trigger the openssh 8.1p bug with glibc 2.31 [1].
> 
> [1] https://bugs.archlinux.org/task/65386
> 
> Signed-off-by: Romain Naour <romain.naour@smile.fr>

Applied to master, with the followign changes:

  - deduplicate the whole test
  - don't provide any NIC, we only need and use lo
  - simplify post-build script (append with cat, don't munge with sed)

Thanks.

Regards,
Yann E. MORIN.

> ---
>  DEVELOPERS                                    |  1 +
>  support/testing/tests/package/test_openssh.py | 67 +++++++++++++++++++
>  .../tests/package/test_openssh/post-build.sh  |  4 ++
>  3 files changed, 72 insertions(+)
>  create mode 100644 support/testing/tests/package/test_openssh.py
>  create mode 100755 support/testing/tests/package/test_openssh/post-build.sh
> 
> diff --git a/DEVELOPERS b/DEVELOPERS
> index 35840ec9a8..bba3fd6029 100644
> --- a/DEVELOPERS
> +++ b/DEVELOPERS
> @@ -2244,6 +2244,7 @@ F:	package/waffle/
>  F:	package/xenomai/
>  F:	package/zziplib/
>  F:	support/testing/tests/package/test_glxinfo.py
> +F:	support/testing/tests/package/test_openssh.py
>  F:	toolchain/
>  
>  N:	Roman Gorbenkov <roman.gorbenkov@ens2m.org>
> diff --git a/support/testing/tests/package/test_openssh.py b/support/testing/tests/package/test_openssh.py
> new file mode 100644
> index 0000000000..a231071c44
> --- /dev/null
> +++ b/support/testing/tests/package/test_openssh.py
> @@ -0,0 +1,67 @@
> +import os
> +
> +import infra.basetest
> +
> +
> +class TestOpensshBase(infra.basetest.BRTest):
> +    passwd = "testpwd"
> +    opensshconfig = \
> +        """
> +        BR2_TARGET_GENERIC_ROOT_PASSWD="{}"
> +        BR2_SYSTEM_DHCP="eth0"
> +        BR2_PACKAGE_OPENSSH=y
> +        BR2_PACKAGE_SSHPASS=y
> +        BR2_ROOTFS_POST_BUILD_SCRIPT="{}"
> +        # BR2_TARGET_ROOTFS_TAR is not set
> +        """.format(
> +            passwd,
> +            infra.filepath("tests/package/test_openssh/post-build.sh"))
> +
> +    def openssh_test(self):
> +        self.emulator.login(self.passwd)
> +        cmd = "netstat -ltn 2>/dev/null | grep 0.0.0.0:22"
> +        _, exit_code = self.emulator.run(cmd)
> +        self.assertEqual(exit_code, 0)
> +
> +        cmd = "sshpass -p {} ssh -oStrictHostKeyChecking=no localhost /bin/true".format(self.passwd)
> +        _, exit_code = self.emulator.run(cmd)
> +        self.assertEqual(exit_code, 0)
> +
> +
> +class TestOpenSshuClibc(TestOpensshBase):
> +    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
> +        TestOpensshBase.opensshconfig + \
> +        """
> +        BR2_TARGET_ROOTFS_CPIO=y
> +        """
> +
> +    def test_run(self):
> +        img = os.path.join(self.builddir, "images", "rootfs.cpio")
> +        self.emulator.boot(arch="armv5",
> +                           kernel="builtin",
> +                           options=["-initrd", img,
> +                                    "-net", "nic",
> +                                    "-net", "user"])
> +        self.openssh_test()
> +
> +
> +class TestOpenSshGlibc(TestOpensshBase):
> +    config = \
> +        TestOpensshBase.opensshconfig + \
> +        """
> +        BR2_arm=y
> +        BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
> +        BR2_KERNEL_HEADERS_4_19=y
> +        BR2_TOOLCHAIN_BUILDROOT_CXX=y
> +        BR2_PACKAGE_RNG_TOOLS=y
> +        BR2_TARGET_ROOTFS_CPIO=y
> +        """
> +
> +    def test_run(self):
> +        img = os.path.join(self.builddir, "images", "rootfs.cpio")
> +        self.emulator.boot(arch="armv5",
> +                           kernel="builtin",
> +                           options=["-initrd", img,
> +                                    "-net", "nic",
> +                                    "-net", "user"])
> +        self.openssh_test()
> diff --git a/support/testing/tests/package/test_openssh/post-build.sh b/support/testing/tests/package/test_openssh/post-build.sh
> new file mode 100755
> index 0000000000..4c876ce554
> --- /dev/null
> +++ b/support/testing/tests/package/test_openssh/post-build.sh
> @@ -0,0 +1,4 @@
> +#!/usr/bin/env bash
> +
> +sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g'  ${TARGET_DIR}/etc/ssh/sshd_config
> +sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/g'  ${TARGET_DIR}/etc/ssh/sshd_config
> -- 
> 2.25.4
> 
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