ip_addr.h File Reference

#include "lwip/arch.h"

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Classes
struct	ip_addr
struct	ip_addr2
struct	in_addr

Macros
#define	HAVE_IN_ADDR
#define	IP_ADDR_ANY   ((struct ip_addr *)&ip_addr_any)
#define	IP_ADDR_BROADCAST   ((struct ip_addr *)&ip_addr_broadcast)
#define	INADDR_NONE   ((u32_t) 0xffffffff) /* 255.255.255.255 */
#define	INADDR_LOOPBACK   ((u32_t) 0x7f000001) /* 127.0.0.1 */
#define	IN_CLASSA(a)   ((((u32_t)(a)) & 0x80000000) == 0)
#define	IN_CLASSA_NET   0xff000000
#define	IN_CLASSA_NSHIFT   24
#define	IN_CLASSA_HOST   (0xffffffff & ~IN_CLASSA_NET)
#define	IN_CLASSA_MAX   128
#define	IN_CLASSB(a)   ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
#define	IN_CLASSB_NET   0xffff0000
#define	IN_CLASSB_NSHIFT   16
#define	IN_CLASSB_HOST   (0xffffffff & ~IN_CLASSB_NET)
#define	IN_CLASSB_MAX   65536
#define	IN_CLASSC(a)   ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
#define	IN_CLASSC_NET   0xffffff00
#define	IN_CLASSC_NSHIFT   8
#define	IN_CLASSC_HOST   (0xffffffff & ~IN_CLASSC_NET)
#define	IN_CLASSD(a)   (((u32_t)(a) & 0xf0000000) == 0xe0000000)
#define	IN_CLASSD_NET   0xf0000000 /* These ones aren't really */
#define	IN_CLASSD_NSHIFT   28 /* net and host fields, but */
#define	IN_CLASSD_HOST   0x0fffffff /* routing needn't know. */
#define	IN_MULTICAST(a)   IN_CLASSD(a)
#define	IN_EXPERIMENTAL(a)   (((u32_t)(a) & 0xf0000000) == 0xf0000000)
#define	IN_BADCLASS(a)   (((u32_t)(a) & 0xf0000000) == 0xf0000000)
#define	IN_LOOPBACKNET   127 /* official! */
#define	IP4_ADDR(ipaddr, a, b, c, d)
#define	ip_addr_set(dest, src)
#define	ip_addr_netcmp(addr1, addr2, mask)
#define	ip_addr_cmp(addr1, addr2)   ((addr1)->addr == (addr2)->addr)
#define	ip_addr_isany(addr1)   ((addr1) == NULL || (addr1)->addr == 0)
#define	ip_addr_ismulticast(addr1)   (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))
#define	ip_addr_debug_print(debug, ipaddr)
#define	ip4_addr1(ipaddr)   ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
#define	ip4_addr2(ipaddr)   ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
#define	ip4_addr3(ipaddr)   ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
#define	ip4_addr4(ipaddr)   ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)

Functions
u8_t	ip_addr_isbroadcast (struct ip_addr *, struct netif *)

Variables
PACK_STRUCT_BEGIN struct ip_addr	PACK_STRUCT_STRUCT
const struct ip_addr	ip_addr_any
const struct ip_addr	ip_addr_broadcast

Macro Definition Documentation

HAVE_IN_ADDR

#define HAVE_IN_ADDR

IN_BADCLASS

#define IN_BADCLASS

(

a

)

(((u32_t)(a) & 0xf0000000) == 0xf0000000)

IN_CLASSA

#define IN_CLASSA

(

a

)

((((u32_t)(a)) & 0x80000000) == 0)

IN_CLASSA_HOST

#define IN_CLASSA_HOST   (0xffffffff & ~IN_CLASSA_NET)

IN_CLASSA_MAX

#define IN_CLASSA_MAX   128

IN_CLASSA_NET

#define IN_CLASSA_NET   0xff000000

IN_CLASSA_NSHIFT

#define IN_CLASSA_NSHIFT   24

IN_CLASSB

#define IN_CLASSB

(

a

)

((((u32_t)(a)) & 0xc0000000) == 0x80000000)

IN_CLASSB_HOST

#define IN_CLASSB_HOST   (0xffffffff & ~IN_CLASSB_NET)

IN_CLASSB_MAX

#define IN_CLASSB_MAX   65536

IN_CLASSB_NET

#define IN_CLASSB_NET   0xffff0000

IN_CLASSB_NSHIFT

#define IN_CLASSB_NSHIFT   16

IN_CLASSC

#define IN_CLASSC

(

a

)

((((u32_t)(a)) & 0xe0000000) == 0xc0000000)

IN_CLASSC_HOST

#define IN_CLASSC_HOST   (0xffffffff & ~IN_CLASSC_NET)

IN_CLASSC_NET

#define IN_CLASSC_NET   0xffffff00

IN_CLASSC_NSHIFT

#define IN_CLASSC_NSHIFT   8

IN_CLASSD

#define IN_CLASSD

(

a

)

(((u32_t)(a) & 0xf0000000) == 0xe0000000)

IN_CLASSD_HOST

#define IN_CLASSD_HOST   0x0fffffff /* routing needn't know. */

IN_CLASSD_NET

#define IN_CLASSD_NET   0xf0000000 /* These ones aren't really */

IN_CLASSD_NSHIFT

#define IN_CLASSD_NSHIFT   28 /* net and host fields, but */

IN_EXPERIMENTAL

#define IN_EXPERIMENTAL

(

a

)

(((u32_t)(a) & 0xf0000000) == 0xf0000000)

IN_LOOPBACKNET

#define IN_LOOPBACKNET   127 /* official! */

IN_MULTICAST

#define IN_MULTICAST

(

a

)

IN_CLASSD(a)

INADDR_LOOPBACK

#define INADDR_LOOPBACK   ((u32_t) 0x7f000001) /* 127.0.0.1 */

INADDR_NONE

#define INADDR_NONE   ((u32_t) 0xffffffff) /* 255.255.255.255 */

IP4_ADDR

#define IP4_ADDR	(		ipaddr,
			a,
			b,
			c,
			d
	)

Value:

(ipaddr)->addr = htonl(((u32_t)(a & 0xff) << 24) | ((u32_t)(b & 0xff) << 16) | \
 ((u32_t)(c & 0xff) << 8) | (u32_t)(d & 0xff))

ip4_addr1

#define ip4_addr1

(

ipaddr

)

((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)

ip4_addr2

#define ip4_addr2

(

ipaddr

)

((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)

ip4_addr3

#define ip4_addr3

(

ipaddr

)

((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)

ip4_addr4

#define ip4_addr4

(

ipaddr

)

((u16_t)(ntohl((ipaddr)->addr)) & 0xff)

IP_ADDR_ANY

#define IP_ADDR_ANY   ((struct ip_addr *)&ip_addr_any)

IP_ADDR_ can be used as a fixed IP address for the wildcard and the broadcast address

IP_ADDR_BROADCAST

#define IP_ADDR_BROADCAST   ((struct ip_addr *)&ip_addr_broadcast)

ip_addr_cmp

#define ip_addr_cmp	(		addr1,
			addr2
	)		((addr1)->addr == (addr2)->addr)

ip_addr_debug_print

#define ip_addr_debug_print	(		debug,
			ipaddr
	)

Value:

LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
 ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff:0, \
 ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff:0, \
 ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff:0, \
 ipaddr?(u16_t)ntohl((ipaddr)->addr) & 0xff:0U))

ip_addr_isany

#define ip_addr_isany

(

addr1

)

((addr1) == NULL || (addr1)->addr == 0)

ip_addr_ismulticast

#define ip_addr_ismulticast

(

addr1

)

(((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))

ip_addr_netcmp

#define ip_addr_netcmp	(		addr1,
			addr2,
			mask
	)

Value:

(((addr1)->addr & \
 (mask)->addr) == \
 ((addr2)->addr & \
 (mask)->addr))

Determine if two address are on the same network.

• addr1 IP address 1
• addr2 IP address 2
• mask network identifier mask

  Returns

  !0 if the network identifiers of both address match

ip_addr_set

#define ip_addr_set	(		dest,
			src
	)

Value:

(dest)->addr = \
 ((src) == NULL? 0:\
 (src)->addr)

Function Documentation

ip_addr_isbroadcast()

u8_t ip_addr_isbroadcast	(	struct ip_addr *	,
		struct netif *
	)

Variable Documentation

ip_addr_any

const struct ip_addr ip_addr_any

ip_addr_broadcast

const struct ip_addr ip_addr_broadcast

PACK_STRUCT_STRUCT

PACK_STRUCT_END PACK_STRUCT_BEGIN struct ip_addr2 PACK_STRUCT_STRUCT