sys/linux: refine xdp description

Split sockaddr_xdp for bind.
Bind accepts another sock_xdp in addr.
Without the split getsockaddr "can" create sock_xdp's
because it returns generic sockaddr which contains
all addresses, including sockaddr_xdp, which in turn
contains sock_xdp.

1 files changed, 9 insertions, 1 deletions

diff --git a/sys/linux/socket_xdp.txt b/sys/linux/socket_xdp.txt
index 0034a948e..564fe2078 100644
--- a/sys/linux/socket_xdp.txt
+++ b/sys/linux/socket_xdp.txt
@@ -10,7 +10,7 @@ include <uapi/linux/if_xdp.h>
 resource sock_xdp[sock]
 
 socket$xdp(domain const[AF_XDP], type const[SOCK_RAW], proto const[0]) sock_xdp
-bind$xdp(fd sock_xdp, addr ptr[in, sockaddr_xdp], len bytesize[addr])
+bind$xdp(fd sock_xdp, addr ptr[in, sockaddr_xdp_bind], len bytesize[addr])
 sendmsg$xdp(fd sock_xdp, msg ptr[in, msghdr_xdp], f flags[send_flags])
 mmap$xdp(addr vma, len len[addr], prot flags[mmap_prot], flags flags[mmap_flags], fd sock_xdp, offset flags[xdp_mmap_offsets])
 
@@ -31,6 +31,14 @@ sockaddr_xdp {
 	sxdp_flags		flags[sxdp_flags, int16]
 	sxdp_ifindex		ifindex
 	sxdp_queue_id		int32[0:64]
+	sxdp_shared_umem_fd	const[0, int32]
+}
+
+sockaddr_xdp_bind {
+	sxdp_family		const[AF_XDP, int16]
+	sxdp_flags		flags[sxdp_flags, int16]
+	sxdp_ifindex		ifindex
+	sxdp_queue_id		int32[0:64]
 	sxdp_shared_umem_fd	sock_xdp[opt]
 }