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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , open list Content-Type: text/plain; charset="UTF-8" Currently, bpf_setsockopt() and bpf_getsockopt() for SOL_IP and SOL_IPV6 only allow a small subset of socket options (such as IP_TOS, IPV6_TCLASS, and IPV6_AUTOFLOWLABEL). Calling bpf_setsockopt() with IP_TRANSPARENT or IPV6_TRANSPARENT fails with -EINVAL. Transparent proxying (TPROXY) and related networking components often rely on IP_TRANSPARENT and IPV6_TRANSPARENT to enable binding sockets to non-local IP addresses. Allow IP_TRANSPARENT for SOL_IP in sol_ip_sockopt() and IPV6_TRANSPARENT for SOL_IPV6 in sol_ipv6_sockopt(). Reviewed-by: Kuniyuki Iwashima Tested-by: Anubhav Singh Signed-off-by: Shivaji Kant --- net/core/filter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/filter.c b/net/core/filter.c index c21c1daecf9d..04a9f9d8d07b 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -5645,6 +5645,7 @@ static int sol_ip_sockopt(struct sock *sk, int optname, switch (optname) { case IP_TOS: + case IP_TRANSPARENT: if (*optlen != sizeof(int)) return -EINVAL; break; @@ -5671,6 +5672,7 @@ static int sol_ipv6_sockopt(struct sock *sk, int optname, switch (optname) { case IPV6_TCLASS: case IPV6_AUTOFLOWLABEL: + case IPV6_TRANSPARENT: if (*optlen != sizeof(int)) return -EINVAL; break; -- 2.55.0.508.g3f0d502094-goog