The patch set fixes BSD'ism in sys_sendmsg to rewrite unspecified
destination IPv6 for unconnected UDP sockets in sys_sendmsg with [::1] in
case when either CONFIG_CGROUP_BPF is enabled or when sys_sendmsg BPF hook
sets destination IPv6 to [::].
Patch 1 is the fix and provides more details.
Patch 2 adds two test cases to verify the fix.
v1->v2:
* Fix compile error in patch 1.
Andrey Ignatov (2):
bpf: Fix [::] -> [::1] rewrite in sys_sendmsg
selftests/bpf: Test [::] -> [::1] rewrite in sys_sendmsg in
test_sock_addr
net/ipv6/udp.c | 8 +--
tools/testing/selftests/bpf/test_sock_addr.c | 53 ++++++++++++++++++--
2 files changed, 54 insertions(+), 7 deletions(-)
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2.17.1
