Continue operation when failing to send packets.

My iwn(4) interface on FreeBSD11 and 12 struggles to associate.
A side effect of this is running out of buffer until it does, but we need
dhcpcd to continue once association is made and the buffers have emptied.

1 files changed, 4 insertions, 3 deletions

diff --git a/ipv6nd.c b/ipv6nd.c
index aed0bcd0..06f79744 100644
--- a/ipv6nd.c
+++ b/ipv6nd.c
@@ -307,9 +307,10 @@ ipv6nd_sendrsprobe(void *arg)
 	if (sendmsg(ctx->nd_fd, &ctx->sndhdr, 0) == -1) {
 		logger(ifp->ctx, LOG_ERR,
 		    "%s: %s: sendmsg: %m", ifp->name, __func__);
-		ipv6nd_drop(ifp);
-		ifp->options->options &= ~(DHCPCD_IPV6 | DHCPCD_IPV6RS);
-		return;
+		/* Allow IPv6ND to continue .... at most a few errors
+		 * would be logged.
+		 * Generally the error is ENOBUFS when struggling to
+		 * associate with an access point. */
 	}
 
 	if (state->rsprobes++ < MAX_RTR_SOLICITATIONS)