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-rw-r--r--src/user/app/netstack/util.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/user/app/netstack/util.h b/src/user/app/netstack/util.h
index b8fa5c6..0b29560 100644
--- a/src/user/app/netstack/util.h
+++ b/src/user/app/netstack/util.h
@@ -8,6 +8,10 @@
uint32_t crc32(const uint8_t *buf, size_t len);
uint16_t ip_checksum(const uint8_t *buf, size_t len);
+uint16_t ip_checksumphdr(
+ const uint8_t *buf, size_t len,
+ uint32_t ip1, uint32_t ip2,
+ uint16_t proto);
/* 0 on success, negative failure */
int ip_parse(const char *s, uint32_t *ip);