utils: fix ipv4 checksum issue

nbd168 · nbd168 · commit faaf9cee6ef4 · 2023-05-05T14:37:21.000+02:00
The parameter order for protocol and length was accidentally reversed,
leading to issues for packets &gt; 256 bytes

Signed-off-by: Felix Fietkau &lt;nbd@nbd.name&gt;
diff --git a/utils.c b/utils.c
@@ -200,7 +200,7 @@ uint64_t unet_gettime(void)
 }
 
 static inline uint32_t
-csum_tcpudp_nofold(uint32_t saddr, uint32_t daddr, uint32_t len, uint8_t proto)
+csum_tcpudp_nofold(uint32_t saddr, uint32_t daddr, uint8_t proto, uint32_t len)
 {
 	uint64_t sum = 0;
 

Original file line number	Diff line number	Diff line change
`@@ -200,7 +200,7 @@ uint64_t unet_gettime(void)`
`200`	`200`	`}`
`201`	`201`
`202`	`202`	`static inline uint32_t`
`203`		`-csum_tcpudp_nofold(uint32_t saddr, uint32_t daddr, uint32_t len, uint8_t proto)`
	`203`	`+csum_tcpudp_nofold(uint32_t saddr, uint32_t daddr, uint8_t proto, uint32_t len)`
`204`	`204`	`{`
`205`	`205`	`uint64_t sum = 0;`
`206`	`206`