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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(). Signed-off-by: Shivaji Kant <shivajikant@google.com> Tested-by: Anubhav Singh <anubhavsinggh@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://lore.kernel.org/bpf/20260801051307.478469-1-shivajikant@google.com Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>