When registering a protocol to an existing protocol domain via

pf_proto_register(), iterate over all existing vnets to call protosw_init()
and thus the appropriate .pr_init() handler in the context of each vnet.
NB in the future we probably want to separate pr_init() handlers into
two, i.e. per-vnet and global, functions.

This change has no impact on nooptions VIMAGE builds.

Approved by:	re (rwatson), julian (mentor)
MFC after:	3 days

1 files changed, 8 insertions, 1 deletions

diff --git a/sys/kern/uipc_domain.c b/sys/kern/uipc_domain.c
index 257e9fa..0d5043e 100644
--- a/sys/kern/uipc_domain.c
+++ b/sys/kern/uipc_domain.c
@@ -336,6 +336,7 @@ found:
 int
 pf_proto_register(int family, struct protosw *npr)
 {
+	VNET_ITERATOR_DECL(vnet_iter);
 	struct domain *dp;
 	struct protosw *pr, *fpr;
 
@@ -391,7 +392,13 @@ found:
 	mtx_unlock(&dom_mtx);
 
 	/* Initialize and activate the protocol. */
-	protosw_init(fpr);
+	VNET_LIST_RLOCK();
+	VNET_FOREACH(vnet_iter) {
+		CURVNET_SET_QUIET(vnet_iter);
+		protosw_init(fpr);
+		CURVNET_RESTORE();
+	}
+	VNET_LIST_RUNLOCK();
 
 	return (0);
 }