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| author | Matthieu Baerts <matthieu.baerts@tessares.net> | 2021-04-15 16:44:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-16 15:23:09 -0700 |
| commit | bd005f53862b9e840977907e14e28cbcc10c6d51 (patch) | |
| tree | c153d53a458f566b462b3abe141625a77ee7691c /net/mptcp | |
| parent | a1150a04b7e8caee235e38996e042e1bcb1a6574 (diff) | |
| download | linux-bd005f53862b9e840977907e14e28cbcc10c6d51.tar.gz linux-bd005f53862b9e840977907e14e28cbcc10c6d51.tar.bz2 linux-bd005f53862b9e840977907e14e28cbcc10c6d51.zip | |
mptcp: revert "mptcp: forbit mcast-related sockopt on MPTCP sockets"
This change reverts commit 86581852d771 ("mptcp: forbit mcast-related sockopt on MPTCP sockets").
As announced in the cover letter of the mentioned patch above, the
following commits introduce a larger MPTCP sockopt implementation
refactor.
This time, we switch from a blocklist to an allowlist. This is safer for
the future where new sockoptions could be added while not being fully
supported with MPTCP sockets and thus causing unstabilities.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/protocol.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 8009b3f8e4c1..2fcdc611c122 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2869,48 +2869,6 @@ static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, return ret; } -static bool mptcp_unsupported(int level, int optname) -{ - if (level == SOL_IP) { - switch (optname) { - case IP_ADD_MEMBERSHIP: - case IP_ADD_SOURCE_MEMBERSHIP: - case IP_DROP_MEMBERSHIP: - case IP_DROP_SOURCE_MEMBERSHIP: - case IP_BLOCK_SOURCE: - case IP_UNBLOCK_SOURCE: - case MCAST_JOIN_GROUP: - case MCAST_LEAVE_GROUP: - case MCAST_JOIN_SOURCE_GROUP: - case MCAST_LEAVE_SOURCE_GROUP: - case MCAST_BLOCK_SOURCE: - case MCAST_UNBLOCK_SOURCE: - case MCAST_MSFILTER: - return true; - } - return false; - } - if (level == SOL_IPV6) { - switch (optname) { - case IPV6_ADDRFORM: - case IPV6_ADD_MEMBERSHIP: - case IPV6_DROP_MEMBERSHIP: - case IPV6_JOIN_ANYCAST: - case IPV6_LEAVE_ANYCAST: - case MCAST_JOIN_GROUP: - case MCAST_LEAVE_GROUP: - case MCAST_JOIN_SOURCE_GROUP: - case MCAST_LEAVE_SOURCE_GROUP: - case MCAST_BLOCK_SOURCE: - case MCAST_UNBLOCK_SOURCE: - case MCAST_MSFILTER: - return true; - } - return false; - } - return false; -} - static int mptcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, unsigned int optlen) { @@ -2919,9 +2877,6 @@ static int mptcp_setsockopt(struct sock *sk, int level, int optname, pr_debug("msk=%p", msk); - if (mptcp_unsupported(level, optname)) - return -ENOPROTOOPT; - if (level == SOL_SOCKET) return mptcp_setsockopt_sol_socket(msk, optname, optval, optlen); |