commit cfaaf67f1b8b7d6cde949e4d5e55ecebb4385105
author Willy Tarreau <w@1wt.eu> Tue Mar 17 13:34:25 2015 +0100
committer Willy Tarreau <w@1wt.eu> Wed Sep 21 10:37:09 2016 +0200
tree 4fa419113f5902e96f883650ea0a48de4b0f444b
parent 7850171cbd1e9172f6884daf8b7df07f27f4fe47

slhttpd: the L4 offset must be relative to the L2 header, not L3

So we need to pass 34 and not 20 here for the checksumm computation.

drivers/staging/slhttpd/slhttpd.c

diff --git a/drivers/staging/slhttpd/slhttpd.c b/drivers/staging/slhttpd/slhttpd.c
index adb24d1..b440ce2 100644
--- a/drivers/staging/slhttpd/slhttpd.c
+++ b/drivers/staging/slhttpd/slhttpd.c
@@ -623,7 +623,7 @@
  send_ip:
 	*(uint16_t *)(oih + 2) = htons(otail - oih);  /* IP+TCP real len */
 
-	return NDIV_RX_R_F_DROP | (20 << NDIV_RX_R_L4OFFSET_SHIFT) | NDIV_RX_R_F_IPCSUM | NDIV_RX_R_F_TCPCSUM | (otail - obuf);
+	return NDIV_RX_R_F_DROP | (34 << NDIV_RX_R_L4OFFSET_SHIFT) | NDIV_RX_R_F_IPCSUM | NDIV_RX_R_F_TCPCSUM | (otail - obuf);
 
  drop:
 	return NDIV_RX_R_F_DROP;