From: Roy Marples <roy@marples.name>
Date: Wed, 5 Feb 2020 13:55:47 +0000 (+0000)
Subject: DHCP: Support jumbo frames
X-Git-Tag: v8.1.7~18
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=354d22cc67eabcb755f3ce60ab22f429bcf84b7a;p=thirdparty%2Fdhcpcd.git

DHCP: Support jumbo frames

Also important as we now need to store the frame header in the
initial buffer.
---

diff --git a/src/dhcp.c b/src/dhcp.c
index 1be4addd..2b1e44f1 100644
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -3432,7 +3432,7 @@ static void
 dhcp_readbpf(void *arg)
 {
 	struct interface *ifp = arg;
-	uint8_t buf[MTU_MAX];
+	uint8_t buf[10240];	/* Max jumbo frame and some extra */
 	ssize_t bytes;
 	struct dhcp_state *state = D_STATE(ifp);
 	ssize_t fl = (ssize_t)bpf_frame_header_len(ifp);