Use shared net lock instead of exclusive when frag6 calls icmp6_error().

OK mvs@ a while ago as part of a larger diff

diff --git a/sys/netinet6/frag6.c b/sys/netinet6/frag6.c
index 1b528b3..4c0e9d4 100644 (file)
--- a/sys/netinet6/frag6.c
+++ b/sys/netinet6/frag6.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: frag6.c,v 1.88 2024/03/26 23:48:49 bluhm Exp $        */
+/*     $OpenBSD: frag6.c,v 1.89 2024/07/29 12:41:30 bluhm Exp $        */
 /*     $KAME: frag6.c,v 1.40 2002/05/27 21:40:31 itojun Exp $  */
 
 /*
@@ -130,7 +130,8 @@ frag6_input(struct mbuf **mp, int *offp, int proto, int af)
 
        /* jumbo payload can't contain a fragment header */
        if (ip6->ip6_plen == 0) {
-               icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER, offset);
+               icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER,
+                   offset);
                return IPPROTO_DONE;
        }
 
@@ -544,10 +545,10 @@ frag6_freef(struct ip6q *q6)
                        ip6->ip6_src = q6->ip6q_src;
                        ip6->ip6_dst = q6->ip6q_dst;
 
-                       NET_LOCK();
+                       NET_LOCK_SHARED();
                        icmp6_error(m, ICMP6_TIME_EXCEEDED,
                                    ICMP6_TIME_EXCEED_REASSEMBLY, 0);
-                       NET_UNLOCK();
+                       NET_UNLOCK_SHARED();
                } else
                        m_freem(m);
                pool_put(&ip6af_pool, af6);