On Tue, 2 Nov 2021 15:19:21 +0100 Riccardo Paolo Bestetti wrote:
Add support to inet v4 raw sockets for binding to nonlocal addresses through the IP_FREEBIND and IP_TRANSPARENT socket options, as well as the ipv4.ip_nonlocal_bind kernel parameter.
Add helper function to inet_sock.h to check for bind address validity on the base of the address type and whether nonlocal address are enabled for the socket via any of the sockopts/sysctl, deduplicating checks in ipv4/ping.c, ipv4/af_inet.c, ipv6/af_inet6.c (for mapped v4->v6 addresses), and ipv4/raw.c.
Add test cases with IP[V6]_FREEBIND verifying that both v4 and v6 raw sockets support binding to nonlocal addresses after the change. Add necessary support for the test cases to nettest.
Signed-off-by: Riccardo Paolo Bestetti pbl@bestov.io
Thanks for the patch, please keep Dave's review tag and repost in ~2 weeks.
# Form letter - net-next is closed
We have already sent the networking pull request for 5.16 and therefore net-next is closed for new drivers, features, code refactoring and optimizations. We are currently accepting bug fixes only.
Please repost when net-next reopens after 5.15-rc1 is cut.
Look out for the announcement on the mailing list or check: http://vger.kernel.org/~davem/net-next.html