257 lines
9.9 KiB
C
257 lines
9.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
||
|
|
* are permitted provided that the following conditions are met:
|
||
|
|
*
|
||
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||
|
|
* this list of conditions and the following disclaimer in the documentation
|
||
|
|
* and/or other materials provided with the distribution.
|
||
|
|
* 3. The name of the author may not be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||
|
|
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||
|
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||
|
|
* OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* This file is part of the lwIP TCP/IP stack.
|
||
|
|
*
|
||
|
|
* Author: Adam Dunkels <adam@sics.se>
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#ifndef __LWIP_IP_ADDR_H__
|
||
|
|
#define __LWIP_IP_ADDR_H__
|
||
|
|
|
||
|
|
#include "lwip/opt.h"
|
||
|
|
#include "lwip/def.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
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_packed {
|
||
|
|
PACK_STRUCT_FIELD(u32_t addr);
|
||
|
|
} PACK_STRUCT_STRUCT;
|
||
|
|
PACK_STRUCT_END
|
||
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||
|
|
# include "arch/epstruct.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/** 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
|
||
|
|
* order to support compilers that don't have structure packing.
|
||
|
|
*/
|
||
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||
|
|
# include "arch/bpstruct.h"
|
||
|
|
#endif
|
||
|
|
PACK_STRUCT_BEGIN
|
||
|
|
struct ip_addr2 {
|
||
|
|
PACK_STRUCT_FIELD(u16_t addrw[2]);
|
||
|
|
} PACK_STRUCT_STRUCT;
|
||
|
|
PACK_STRUCT_END
|
||
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||
|
|
# include "arch/epstruct.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Forward declaration to not include netif.h */
|
||
|
|
struct netif;
|
||
|
|
|
||
|
|
extern const ip_addr_t ip_addr_any;
|
||
|
|
extern const ip_addr_t ip_addr_broadcast;
|
||
|
|
|
||
|
|
/** IP_ADDR_ can be used as a fixed IP address
|
||
|
|
* for the wildcard and the broadcast address
|
||
|
|
*/
|
||
|
|
#define IP_ADDR_ANY ((ip_addr_t *)&ip_addr_any)
|
||
|
|
#define IP_ADDR_BROADCAST ((ip_addr_t *)&ip_addr_broadcast)
|
||
|
|
|
||
|
|
/** 255.255.255.255 */
|
||
|
|
#define IPADDR_NONE ((u32_t)0xffffffffUL)
|
||
|
|
/** 127.0.0.1 */
|
||
|
|
#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL)
|
||
|
|
/** 0.0.0.0 */
|
||
|
|
#define IPADDR_ANY ((u32_t)0x00000000UL)
|
||
|
|
/** 255.255.255.255 */
|
||
|
|
#define IPADDR_BROADCAST ((u32_t)0xffffffffUL)
|
||
|
|
|
||
|
|
/* Definitions of the bits in an Internet address integer.
|
||
|
|
|
||
|
|
On subnets, host and network parts are found according to
|
||
|
|
the subnet mask, not these masks. */
|
||
|
|
#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
|
||
|
|
#define IP_CLASSA_NET 0xff000000
|
||
|
|
#define IP_CLASSA_NSHIFT 24
|
||
|
|
#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET)
|
||
|
|
#define IP_CLASSA_MAX 128
|
||
|
|
|
||
|
|
#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
|
||
|
|
#define IP_CLASSB_NET 0xffff0000
|
||
|
|
#define IP_CLASSB_NSHIFT 16
|
||
|
|
#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET)
|
||
|
|
#define IP_CLASSB_MAX 65536
|
||
|
|
|
||
|
|
#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
|
||
|
|
#define IP_CLASSC_NET 0xffffff00
|
||
|
|
#define IP_CLASSC_NSHIFT 8
|
||
|
|
#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET)
|
||
|
|
|
||
|
|
#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
|
||
|
|
#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */
|
||
|
|
#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */
|
||
|
|
#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */
|
||
|
|
#define IP_MULTICAST(a) IP_CLASSD(a)
|
||
|
|
|
||
|
|
#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
||
|
|
#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
||
|
|
|
||
|
|
#define IP_LOOPBACKNET 127 /* official! */
|
||
|
|
|
||
|
|
|
||
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
||
|
|
/** Set an IP address given by the four byte-parts */
|
||
|
|
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
||
|
|
(ipaddr)->addr = ((u32_t)((a) & 0xff) << 24) | \
|
||
|
|
((u32_t)((b) & 0xff) << 16) | \
|
||
|
|
((u32_t)((c) & 0xff) << 8) | \
|
||
|
|
(u32_t)((d) & 0xff)
|
||
|
|
#else
|
||
|
|
/** Set an IP address given by the four byte-parts.
|
||
|
|
Little-endian version that prevents the use of htonl. */
|
||
|
|
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
||
|
|
(ipaddr)->addr = ((u32_t)((d) & 0xff) << 24) | \
|
||
|
|
((u32_t)((c) & 0xff) << 16) | \
|
||
|
|
((u32_t)((b) & 0xff) << 8) | \
|
||
|
|
(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) */
|
||
|
|
#define ip_addr_set(dest, src) ((dest)->addr = \
|
||
|
|
((src) == NULL ? 0 : \
|
||
|
|
(src)->addr))
|
||
|
|
/** Set complete address to zero */
|
||
|
|
#define ip_addr_set_zero(ipaddr) ((ipaddr)->addr = 0)
|
||
|
|
/** 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 = 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 = \
|
||
|
|
((src) == NULL ? 0:\
|
||
|
|
htonl((src)->addr)))
|
||
|
|
/** IPv4 only: set the IP address given as an u32_t */
|
||
|
|
#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
|
||
|
|
/** IPv4 only: get the IP address as an u32_t */
|
||
|
|
#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
|
||
|
|
|
||
|
|
/** Get the network address by combining host address with netmask */
|
||
|
|
#define ip_addr_get_network(target, host, netmask) ((target)->addr = ((host)->addr) & ((netmask)->addr))
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if two address are on the same network.
|
||
|
|
*
|
||
|
|
* @arg addr1 IP address 1
|
||
|
|
* @arg addr2 IP address 2
|
||
|
|
* @arg mask network identifier mask
|
||
|
|
* @return !0 if the network identifiers of both address match
|
||
|
|
*/
|
||
|
|
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
|
||
|
|
(mask)->addr) == \
|
||
|
|
((addr2)->addr & \
|
||
|
|
(mask)->addr))
|
||
|
|
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
|
||
|
|
|
||
|
|
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
|
||
|
|
|
||
|
|
#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
|
||
|
|
u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif)ICACHE_FLASH_ATTR;
|
||
|
|
|
||
|
|
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
|
||
|
|
u8_t ip4_addr_netmask_valid(u32_t netmask)ICACHE_FLASH_ATTR;
|
||
|
|
|
||
|
|
#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, \
|
||
|
|
ipaddr != NULL ? ip4_addr1_16(ipaddr) : 0, \
|
||
|
|
ipaddr != NULL ? ip4_addr2_16(ipaddr) : 0, \
|
||
|
|
ipaddr != NULL ? ip4_addr3_16(ipaddr) : 0, \
|
||
|
|
ipaddr != NULL ? ip4_addr4_16(ipaddr) : 0))
|
||
|
|
|
||
|
|
/* Get one byte from the 4-byte address */
|
||
|
|
#define ip4_addr1(ipaddr) (((u8_t*)(ipaddr))[0])
|
||
|
|
#define ip4_addr2(ipaddr) (((u8_t*)(ipaddr))[1])
|
||
|
|
#define ip4_addr3(ipaddr) (((u8_t*)(ipaddr))[2])
|
||
|
|
#define ip4_addr4(ipaddr) (((u8_t*)(ipaddr))[3])
|
||
|
|
/* These are cast to u16_t, with the intent that they are often arguments
|
||
|
|
* to printf using the U16_F format from cc.h. */
|
||
|
|
#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
|
||
|
|
#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
|
||
|
|
#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
|
||
|
|
#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
|
||
|
|
|
||
|
|
/** For backwards compatibility */
|
||
|
|
#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr)
|
||
|
|
|
||
|
|
u32_t ipaddr_addr(const char *cp)ICACHE_FLASH_ATTR;
|
||
|
|
int ipaddr_aton(const char *cp, ip_addr_t *addr)ICACHE_FLASH_ATTR;
|
||
|
|
/** returns ptr to static buffer; not reentrant! */
|
||
|
|
char *ipaddr_ntoa(const ip_addr_t *addr)ICACHE_FLASH_ATTR;
|
||
|
|
char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen)ICACHE_FLASH_ATTR;
|
||
|
|
|
||
|
|
#define IP2STR(ipaddr) ip4_addr1_16(ipaddr), \
|
||
|
|
ip4_addr2_16(ipaddr), \
|
||
|
|
ip4_addr3_16(ipaddr), \
|
||
|
|
ip4_addr4_16(ipaddr)
|
||
|
|
|
||
|
|
#define IPSTR "%d.%d.%d.%d"
|
||
|
|
|
||
|
|
struct ip_info {
|
||
|
|
struct ip_addr ip;
|
||
|
|
struct ip_addr netmask;
|
||
|
|
struct ip_addr gw;
|
||
|
|
};
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __LWIP_IP_ADDR_H__ */
|