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2021-04-16kunit: mptcp: adhere to KUNIT formatting standardNico Pache1-1/+1
Drop 'S' from end of CONFIG_MPTCP_KUNIT_TESTS in order to adhere to the KUNIT *_KUNIT_TEST config name format. Fixes: a00a582203db (mptcp: move crypto test to KUNIT) Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Nico Pache <npache@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-10-21mptcp: depends on IPV6 but not as a moduleMatthieu Baerts1-1/+1
Like TCP, MPTCP cannot be compiled as a module. Obviously, MPTCP IPv6' support also depends on CONFIG_IPV6. But not all functions from IPv6 code are exported. To simplify the code and reduce modifications outside MPTCP, it was decided from the beginning to support MPTCP with IPv6 only if CONFIG_IPV6 was built inlined. That's also why CONFIG_MPTCP_IPV6 was created. More modifications are needed to support CONFIG_IPV6=m. Even if it was not explicit, until recently, we were forcing CONFIG_IPV6 to be built-in because we had "select IPV6" in Kconfig. Now that we have "depends on IPV6", we have to explicitly set "IPV6=y" to force CONFIG_IPV6 not to be built as a module. In other words, we can now only have CONFIG_MPTCP_IPV6=y if CONFIG_IPV6=y. Note that the new dependency might hide the fact IPv6 is not supported in MPTCP even if we have CONFIG_IPV6=m. But selecting IPV6 like we did before was forcing it to be built-in while it was maybe not what the user wants. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Fixes: 010b430d5df5 ("mptcp: MPTCP_IPV6 should depend on IPV6 instead of selecting it") Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Link: https://lore.kernel.org/r/20201021105154.628257-1-matthieu.baerts@tessares.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-20mptcp: MPTCP_IPV6 should depend on IPV6 instead of selecting itGeert Uytterhoeven1-1/+1
MPTCP_IPV6 selects IPV6, thus enabling an optional feature the user may not want to enable. Fix this by making MPTCP_IPV6 depend on IPV6, like is done for all other IPv6 features. Fixes: f870fa0b5768842c ("mptcp: Add MPTCP socket stubs") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Link: https://lore.kernel.org/r/20201020073839.29226-1-geert@linux-m68k.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-20mptcp: MPTCP_KUNIT_TESTS should depend on MPTCP instead of selecting itGeert Uytterhoeven1-3/+1
MPTCP_KUNIT_TESTS selects MPTCP, thus enabling an optional feature the user may not want to enable. Fix this by making the test depend on MPTCP instead. Fixes: a00a582203dbc43e ("mptcp: move crypto test to KUNIT") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Link: https://lore.kernel.org/r/20201019113240.11516-1-geert@linux-m68k.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-07-09mptcp: add MPTCP socket diag interfacePaolo Abeni1-0/+4
exposes basic inet socket attribute, plus some MPTCP socket fields comprising PM status and MPTCP-level sequence numbers. Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26mptcp: introduce token KUNIT self-testsPaolo Abeni1-1/+1
Unit tests for the internal MPTCP token APIs, using KUNIT v1 -> v2: - use the correct RCU annotation when initializing icsk ulp - fix a few checkpatch issues Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-26mptcp: move crypto test to KUNITPaolo Abeni1-6/+14
currently MPTCP uses a custom hook to executed unit tests at boot time. Let's use the KUNIT framework instead. Additionally move the relevant code to a separate file and export the function needed by the test when self-tests are build as a module. Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-02-16mptcp: select CRYPTOMatthieu Baerts1-0/+1
Without this modification and if CRYPTO is not selected, we have this warning: WARNING: unmet direct dependencies detected for CRYPTO_LIB_SHA256 Depends on [n]: CRYPTO [=n] Selected by [y]: - MPTCP [=y] && NET [=y] && INET [=y] MPTCP selects CRYPTO_LIB_SHA256 which seems to depend on CRYPTO. CRYPTO is now selected to avoid this issue. Even though the config system prints that warning, it looks like sha256.c is compiled and linked even without CONFIG_CRYPTO. Since MPTCP will end up needing CONFIG_CRYPTO anyway in future commits -- currently in preparation for net-next -- we propose to add it now to fix the warning. The dependency in the config system comes from the fact that CRYPTO_LIB_SHA256 is defined in "lib/crypto/Kconfig" which is sourced from "crypto/Kconfig" only if CRYPTO is selected. Fixes: 65492c5a6ab5 (mptcp: move from sha1 (v0) to sha256 (v1)) Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-30mptcp: MPTCP_HMAC_TEST should depend on MPTCPGeert Uytterhoeven1-2/+4
As the MPTCP HMAC test is integrated into the MPTCP code, it can be built only when MPTCP is enabled. Hence when MPTCP is disabled, asking the user if the test code should be enabled is futile. Wrap the whole block of MPTCP-specific config options inside a check for MPTCP. While at it, drop the "default n" for MPTCP_HMAC_TEST, as that is the default anyway. Fixes: 65492c5a6ab5df50 ("mptcp: move from sha1 (v0) to sha256 (v1)") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-24mptcp: move from sha1 (v0) to sha256 (v1)Paolo Abeni1-0/+10
For simplicity's sake use directly sha256 primitives (and pull them as a required build dep). Add optional, boot-time self-tests for the hmac function. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-24mptcp: Add MPTCP socket stubsMat Martineau1-0/+16
Implements the infrastructure for MPTCP sockets. MPTCP sockets open one in-kernel TCP socket per subflow. These subflow sockets are only managed by the MPTCP socket that owns them and are not visible from userspace. This commit allows a userspace program to open an MPTCP socket with: sock = socket(AF_INET, SOCK_STREAM, IPPROTO_MPTCP); The resulting socket is simply a wrapper around a single regular TCP socket, without any of the MPTCP protocol implemented over the wire. Co-developed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Florian Westphal <fw@strlen.de> Co-developed-by: Peter Krystad <peter.krystad@linux.intel.com> Signed-off-by: Peter Krystad <peter.krystad@linux.intel.com> Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Co-developed-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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