Networking: A few more IPv6-related fixes

include/nuttx/net/ip.h

@@ -257,17 +257,23 @@ struct net_iphdr_s
  * addr2 The second IP address.
  */
 
+#define net_ipv6addr_cmp(addr1, addr2) \
+  (addr1 == addr2)
+#define net_ipv6addr_hdrcmp(addr1, addr2) \
+  net_ipv6addr_cmp(net_ip4addr_conv32(addr1), net_ip4addr_conv32(addr2))
+
+#define net_ipv4addr_cmp(addr1, addr2) \
+  (memcmp(&addr1, &addr2, sizeof(net_ip6addr_t)) == 0)
+#define net_ipv4addr_hdrcmp(addr1, addr2) \
+  net_ipv4addr_cmp(addr1, addr2)
+
 #ifndef CONFIG_NET_IPv6
-#  define net_ipaddr_cmp(addr1, addr2) \
+#  define net_ipaddr_cmp(addr1, addr2)    net_ipv6addr_cmp(addr1, addr2)
-     (addr1 == addr2)
+#  define net_ipaddr_hdrcmp(addr1, addr2) net_ipv6addr_hdrcmp(addr1, addr2)
-#  define net_ipaddr_hdrcmp(addr1, addr2) \
+#else
-     net_ipaddr_cmp(net_ip4addr_conv32(addr1), net_ip4addr_conv32(addr2))
+#  define net_ipaddr_cmp(addr1, addr2)    net_ipv4addr_cmp(addr1, addr2)
-#else /* !CONFIG_NET_IPv6 */
+#  define net_ipaddr_hdrcmp(addr1, addr2) net_ipv4addr_hdrcmp(addr1, addr2
-#  define net_ipaddr_cmp(addr1, addr2) \
+#endif
-     (memcmp(&addr1, &addr2, sizeof(net_ip6addr_t)) == 0)
-#  define net_ipaddr_hdrcmp(addr1, addr2) \
-     net_ipaddr_cmp(addr, addr2)
-#endif /* !CONFIG_NET_IPv6 */
 
 /* Compare two IP addresses under a netmask.  The mask is used to mask
  * out the bits that are to be compared:  Buts within the mask much

net/icmpv6/icmpv6_input.c

@@ -128,7 +128,8 @@ void icmpv6_input(FAR struct net_driver_s *dev)
             {
               /* Save the sender's address in our neighbor list. */
 
-              net_neighbor_add(picmp->srcipaddr, &(picmp->options[2]));
+              net_neighbor_add(picmp->srcipaddr,
+                               (FAR struct net_neighbor_addr_s *)&(picmp->options[2]));
             }
 
           /* We should now send a neighbor advertisement back to where the

net/udp/udp_send.c

@@ -44,6 +44,7 @@
 #include <nuttx/config.h>
 #if defined(CONFIG_NET) && defined(CONFIG_NET_UDP)
 
+#include <string.h>
 #include <debug.h>
 
 #include <arpa/inet.h>
@@ -121,8 +122,8 @@ void udp_send(struct net_driver_s *dev, struct udp_conn_s *conn)
       pudpbuf->flow        = 0x00;
       pudpbuf->len[0]      = (dev->d_sndlen >> 8);
       pudpbuf->len[1]      = (dev->d_sndlen & 0xff);
-      pudpbuf->nexthdr     = IP_PROTO_UDP;
+      pudpbuf->proto       = IP_PROTO_UDP;
-      pudpbuf->hoplimit    = conn->ttl;
+      pudpbuf->ttl         = conn->ttl;
 
       net_ipaddr_copy(pudpbuf->srcipaddr, &dev->d_ipaddr);
       net_ipaddr_copy(pudpbuf->destipaddr, &conn->ripaddr);

net/utils/net_chksum.c

@@ -54,8 +54,9 @@
  * Pre-processor Definitions
  ****************************************************************************/
 
-#define BUF ((struct net_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
+#define BUF       ((struct net_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
-#define ICMPBUF ((struct icmp_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
+#define ICMPBUF   ((struct icmp_iphdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
+#define ICMPv6BUF ((struct icmp_ipv6hdr_s *)&dev->d_buf[NET_LL_HDRLEN(dev)])
 
 /****************************************************************************
  * Private Data
@@ -114,7 +115,8 @@ static uint16_t chksum(uint16_t sum, FAR const uint8_t *data, uint16_t len)
  ****************************************************************************/
 
 #if !CONFIG_NET_ARCH_CHKSUM
-static uint16_t upper_layer_chksum(FAR struct net_driver_s *dev, uint8_t proto)
+static uint16_t upper_layer_chksum(FAR struct net_driver_s *dev,
+                                   uint8_t proto)
 {
   FAR struct net_iphdr_s *pbuf = BUF;
   uint16_t upper_layer_len;
@@ -151,19 +153,6 @@ static uint16_t upper_layer_chksum(FAR struct net_driver_s *dev, uint8_t proto)
 }
 #endif /* CONFIG_NET_ARCH_CHKSUM */
 
-/****************************************************************************
- * Name: icmp_6chksum
- ****************************************************************************/
-
-#if !CONFIG_NET_ARCH_CHKSUM
-#ifdef CONFIG_NET_IPv6
-static uint16_t icmp_6chksum(FAR struct net_driver_s *dev)
-{
-  return upper_layer_chksum(dev, IP_PROTO_ICMP6);
-}
-#endif /* CONFIG_NET_IPv6 */
-#endif /* CONFIG_NET_ARCH_CHKSUM */
-
 /****************************************************************************
  * Name: net_carry32
  *
@@ -369,9 +358,24 @@ uint16_t udp_chksum(FAR struct net_driver_s *dev)
 #if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_PING)
 uint16_t icmp_chksum(FAR struct net_driver_s *dev, int len)
 {
-  FAR struct icmp_iphdr_s *picmp = ICMPBUF;
+  FAR struct icmp_iphdr_s *icmp = ICMPBUF;
-  return net_chksum((uint16_t*)&picmp->type, len);
+  return net_chksum((uint16_t*)&icmp->type, len);
 }
 #endif /* CONFIG_NET_ICMP && CONFIG_NET_ICMP_PING */
 
+/****************************************************************************
+ * Name: icmpv6_chksum
+ *
+ * Description:
+ *   Calculate the checksum of the ICMPv6 message
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_NET_ICMPv6
+uint16_t icmpv6_chksum(FAR struct net_driver_s *dev)
+{
+  return upper_layer_chksum(dev, IP_PROTO_ICMP6);
+}
+#endif
+
 #endif /* CONFIG_NET */

net/utils/utils.h

@@ -175,11 +175,25 @@ uint16_t udp_chksum(FAR struct net_driver_s *dev);
  * Name: icmp_chksum
  *
  * Description:
- *   Calculate the checksum of the ICMP message
+ *   Calculate the checksum of the IPv4 ICMP message
  *
  ****************************************************************************/
 
+#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_PING)
 uint16_t icmp_chksum(FAR struct net_driver_s *dev, int len);
+#endif
+
+/****************************************************************************
+ * Name: icmpv6_chksum
+ *
+ * Description:
+ *   Calculate the checksum of the ICMPv6 message
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_NET_ICMPv6
+uint16_t icmpv6_chksum(FAR struct net_driver_s *dev);
+#endif
 
 #undef EXTERN
 #ifdef __cplusplus