Mark IP protocol GRE as MP safe from socket layer.

The pipex code in gre_send() matches more or less what udp_send()
does.  This has been MP safe for a long time.  rip_send() is already
called with PR_MPSOCKET.

OK mvs@

diff --git a/sys/netinet/in_proto.c b/sys/netinet/in_proto.c
index e38cd80..5f9a1fb 100644 (file)
--- a/sys/netinet/in_proto.c
+++ b/sys/netinet/in_proto.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: in_proto.c,v 1.105 2024/07/12 19:50:35 bluhm Exp $    */
+/*     $OpenBSD: in_proto.c,v 1.106 2024/07/13 12:00:11 bluhm Exp $    */
 /*     $NetBSD: in_proto.c,v 1.14 1996/02/18 18:58:32 christos Exp $   */
 
 /*
@@ -318,7 +318,7 @@ const struct protosw inetsw[] = {
   .pr_type     = SOCK_RAW,
   .pr_domain   = &inetdomain,
   .pr_protocol = IPPROTO_GRE,
-  .pr_flags    = PR_ATOMIC|PR_ADDR,
+  .pr_flags    = PR_ATOMIC|PR_ADDR|PR_MPSOCKET,
   .pr_input    = gre_input,
   .pr_ctloutput        = rip_ctloutput,
   .pr_usrreqs  = &gre_usrreqs,