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2023-06-21selftests: mptcp: add MPTCP_FULL_INFO testcasePaolo Abeni1-2/+91
Add a testcase explicitly triggering the newly introduce MPTCP_FULL_INFO getsockopt. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/388 Signed-off-by: Paolo Abeni <[email protected]> Reviewed-by: Matthieu Baerts <[email protected]> Co-developed-by: Matthieu Baerts <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-06-21selftests: mptcp: explicitly tests aggregate countersPaolo Abeni1-1/+26
Update the existing sockopt test-case to do some basic checks on the newly added counters. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/385 Signed-off-by: Paolo Abeni <[email protected]> Reviewed-by: Matthieu Baerts <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2023-06-10selftests: mptcp: sockopt: relax expected returned sizeMatthieu Baerts1-6/+12
Selftests are supposed to run on any kernels, including the old ones not supporting all MPTCP features. One of them is the getsockopt(SOL_MPTCP) to get info about the MPTCP connections introduced by commit 55c42fa7fa33 ("mptcp: add MPTCP_INFO getsockopt") and the following ones. We cannot guess in advance which sizes the kernel will returned: older kernel can returned smaller sizes, e.g. recently the tcp_info structure has been modified in commit 71fc704768f6 ("tcp: add rcv_wnd and plb_rehash to TCP_INFO") where a new field has been added. The userspace can also expect a smaller size if it is compiled with old uAPI kernel headers. So for these sizes, we can only check if they are above a certain threshold, 0 for the moment. We can also only compared sizes with the ones set by the kernel. Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368 Fixes: ce9979129a0b ("selftests: mptcp: add mptcp getsockopt test cases") Cc: [email protected] Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2022-06-28selftests: mptcp: Initialize variables to quiet gcc 12 warningsMat Martineau1-1/+1
In a few MPTCP selftest tools, gcc 12 complains that the 'sock' variable might be used uninitialized. This is a false positive because the only code path that could lead to uninitialized access is where getaddrinfo() fails, but the local xgetaddrinfo() wrapper exits if such a failure occurs. Initialize the 'sock' variable anyway to allow the tools to build with gcc 12. Fixes: 048d19d444be ("mptcp: add basic kselftest for mptcp") Acked-by: Paolo Abeni <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2021-12-07selftests: mptcp: check IP_TOS in/out are the sameFlorian Westphal1-0/+63
Check that getsockopt(IP_TOS) returns what setsockopt(IP_TOS) did set right before. Also check that socklen_t == 0 and -1 input values match those of normal tcp sockets. Reviewed-by: Matthieu Baerts <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2021-09-18selftests: mptcp: add mptcp getsockopt test casesFlorian Westphal1-0/+683
Add a test program that retrieves the three info types: 1. mptcp meta information 2. tcp info for subflow 3. subflow endpoint addresses For all three rudimentary checks are added. 1. Meta information checks that the logical mptcp sequence numbers advance as expected, based on the bytes read (init seq + bytes_received/sent) and the connection state (after close, we should exect 1 extra byte due to FIN). 2. TCP info checks the number of bytes sent/received vs. sums of read/write syscall return values. 3. Subflow endpoint addresses are checked vs. getsockname/getpeername result. Tests for forward compatibility (0-initialisation of output-only fields in mptcp_subflow_data structure) are added as well. Co-developed-by: Matthieu Baerts <[email protected]> Signed-off-by: Matthieu Baerts <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Signed-off-by: Mat Martineau <[email protected]> Signed-off-by: David S. Miller <[email protected]>