support IPv4 & IPv6 frag reassemble

2024-02-22 18:52:04 +08:00
parent 5e5ac458f2
commit 5cd0571b4d
21 changed files with 2116 additions and 95 deletions
--- a/src/packet/ipv4_utils.h
+++ b/src/packet/ipv4_utils.h
@@ -126,6 +126,11 @@ static inline uint8_t ipv4_hdr_get_opt_len(const struct ip *hdr)

 static inline const char *ipv4_hdr_get_opt_data(const struct ip *hdr)
 {
+    if (ipv4_hdr_get_opt_len(hdr) == 0)
+    {
+        return NULL;
+    }
+
    return (const char *)hdr + sizeof(struct ip);
 }