netinet/udp.h: add TCP_ENCAP_ESPINTCP from linux v5.6

The use of TCP_ in udp.h is not known, fortunately udp.h is not specified by posix so there are no strict namespace rules, added in linux commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 xfrm: add espintcp (RFC 8229)
6 years ago · 1ab341e89b
1 changed files with 1 additions and 0 deletions
--- a/include/netinet/udp.h
+++ b/include/netinet/udp.h
@ -35,6 +35,7 @@ struct udphdr {
 #define UDP_ENCAP_GTP0		4
 #define UDP_ENCAP_GTP1U		5
 #define UDP_ENCAP_RXRPC		6
+#define TCP_ENCAP_ESPINTCP	7

 #define SOL_UDP            17