Diff: LPC1768/lwip/include/ipv4/lwip/ip_addr.h

Revision:

5:bc7df6da7589

Parent:

0:422060928e37

--- a/LPC1768/lwip/include/ipv4/lwip/ip_addr.h	Fri Jul 09 14:34:26 2010 +0000
+++ b/LPC1768/lwip/include/ipv4/lwip/ip_addr.h	Thu Aug 05 15:09:22 2010 +0000
@@ -39,11 +39,19 @@
 extern "C" {
 #endif
 
+/* This is the aligned version of ip_addr_t,
+   used as local variable, on the stack, etc. */
+struct ip_addr {
+  u32_t addr;
+};
+
+/* This is the packed version of ip_addr_t,
+   used in network headers that are itself packed */
 #ifdef PACK_STRUCT_USE_INCLUDES
 #  include "arch/bpstruct.h"
 #endif
 PACK_STRUCT_BEGIN
-struct _ip_addr {
+struct ip_addr_packed {
   PACK_STRUCT_FIELD(u32_t addr);
 } PACK_STRUCT_STRUCT;
 PACK_STRUCT_END
@@ -51,7 +59,10 @@
 #  include "arch/epstruct.h"
 #endif
 
-typedef struct _ip_addr ip_addr_t;
+/** ip_addr_t uses a struct for convenience only, so that the same defines can
+ * operate both on ip_addr_t as well as on ip_addr_p_t. */
+typedef struct ip_addr ip_addr_t;
+typedef struct ip_addr_packed ip_addr_p_t;
 
 /*
  * struct ipaddr2 is used in the definition of the ARP packet format in
@@ -140,6 +151,13 @@
                           (u32_t)((a) & 0xff)
 #endif
 
+/** MEMCPY-like copying of IP addresses where addresses are known to be
+ * 16-bit-aligned if the port is correctly configured (so a port could define
+ * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
+#ifndef IPADDR2_COPY
+#define IPADDR2_COPY(dest, src) SMEMCPY(dest, src, sizeof(ip_addr_t))
+#endif
+
 /** Copy IP address - faster than ip_addr_set: no NULL check */
 #define ip_addr_copy(dest, src) ((dest).addr = (src).addr)
 /** Safely copy one IP address to another (src may be NULL) */
@@ -151,7 +169,7 @@
 /** Set address to IPADDR_ANY (no need for htonl()) */
 #define ip_addr_set_any(ipaddr)       ((ipaddr)->addr = IPADDR_ANY)
 /** Set address to loopback address */
-#define ip_addr_set_loopback(ipaddr)  ((ipaddr)->addr = htonl(IPADDR_LOOPBACK))
+#define ip_addr_set_loopback(ipaddr)  ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
 /** Safely copy one IP address to another and change byte order
  * from host- to network-order. */
 #define ip_addr_set_hton(dest, src) ((dest)->addr = \
@@ -181,11 +199,15 @@
 
 #define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
 
-u8_t ip_addr_isbroadcast(ip_addr_t *, struct netif *);
+#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
+u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif);
 
-#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000UL)) == ntohl(0xe0000000UL))
+#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
+u8_t ip4_addr_netmask_valid(u32_t netmask);
 
-#define ip_addr_islinklocal(addr1) (((addr1)->addr & ntohl(0xffff0000UL)) == ntohl(0xa9fe0000UL))
+#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
+
+#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
 
 #define ip_addr_debug_print(debug, ipaddr) \
   LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F,             \
@@ -212,8 +234,8 @@
 u32_t ipaddr_addr(const char *cp);
 int ipaddr_aton(const char *cp, ip_addr_t *addr);
 /** returns ptr to static buffer; not reentrant! */
-char *ipaddr_ntoa(ip_addr_t *addr);
-char *ipaddr_ntoa_r(ip_addr_t *addr, char *buf, int buflen);
+char *ipaddr_ntoa(const ip_addr_t *addr);
+char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen);
 
 #ifdef __cplusplus
 }