1 files changed, 18 insertions, 5 deletions
diff --git a/sys/netinet/raw_ip.c b/sys/netinet/raw_ip.c
index 1db3774..0b77b5b 100644
--- a/sys/netinet/raw_ip.c
+++ b/sys/netinet/raw_ip.c
@@ -427,11 +427,24 @@ rip_output(struct mbuf *m, struct socket *so, u_long dst)
 		ip->ip_p = inp->inp_ip_p;
 		ip->ip_len = m->m_pkthdr.len;
 		ip->ip_src = inp->inp_laddr;
-		error = prison_get_ip4(inp->inp_cred, &ip->ip_src);
-		if (error != 0) {
-			INP_RUNLOCK(inp);
-			m_freem(m);
-			return (error);
+		if (jailed(inp->inp_cred)) {
+			/*
+			 * prison_local_ip4() would be good enough but would
+			 * let a source of INADDR_ANY pass, which we do not
+			 * want to see from jails. We do not go through the
+			 * pain of in_pcbladdr() for raw sockets.
+			 */
+			if (ip->ip_src.s_addr == INADDR_ANY)
+				error = prison_get_ip4(inp->inp_cred,
+				    &ip->ip_src);
+			else
+				error = prison_local_ip4(inp->inp_cred,
+				    &ip->ip_src);
+			if (error != 0) {
+				INP_RUNLOCK(inp);
+				m_freem(m);
+				return (error);
+			}
 		}
 		ip->ip_dst.s_addr = dst;
 		ip->ip_ttl = inp->inp_ip_ttl;