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Add comment about purpose of struct ip_addr2.
Improve white space formatting, add parens in IP4_ADDR().
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@ -46,6 +46,10 @@ PACK_STRUCT_END
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# include "arch/epstruct.h"
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#endif
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/*
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* struct ipaddr2 is used in the definition of the ARP packet format in
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* order to support compilers that don't have structure packing.
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*/
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#ifdef PACK_STRUCT_USE_INCLUDES
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# include "arch/bpstruct.h"
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#endif
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@ -71,48 +75,50 @@ extern const struct ip_addr ip_addr_broadcast;
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/** IP_ADDR_ can be used as a fixed IP address
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* for the wildcard and the broadcast address
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*/
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#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
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#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
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#define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
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#define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
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#define INADDR_NONE ((u32_t) 0xffffffff) /* 255.255.255.255 */
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#define INADDR_LOOPBACK ((u32_t) 0x7f000001) /* 127.0.0.1 */
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#define INADDR_NONE ((u32_t)0xffffffff) /* 255.255.255.255 */
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#define INADDR_LOOPBACK ((u32_t)0x7f000001) /* 127.0.0.1 */
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/* Definitions of the bits in an Internet address integer.
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On subnets, host and network parts are found according to
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the subnet mask, not these masks. */
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#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000) == 0)
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#define IN_CLASSA_NET 0xff000000
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#define IN_CLASSA_NSHIFT 24
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#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
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#define IN_CLASSA_MAX 128
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#define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000) == 0)
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#define IN_CLASSA_NET 0xff000000
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#define IN_CLASSA_NSHIFT 24
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#define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
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#define IN_CLASSA_MAX 128
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#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
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#define IN_CLASSB_NET 0xffff0000
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#define IN_CLASSB_NSHIFT 16
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#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
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#define IN_CLASSB_MAX 65536
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#define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
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#define IN_CLASSB_NET 0xffff0000
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#define IN_CLASSB_NSHIFT 16
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#define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
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#define IN_CLASSB_MAX 65536
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#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
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#define IN_CLASSC_NET 0xffffff00
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#define IN_CLASSC_NSHIFT 8
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#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
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#define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
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#define IN_CLASSC_NET 0xffffff00
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#define IN_CLASSC_NSHIFT 8
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#define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
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#define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000) == 0xe0000000)
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#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
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#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
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#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
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#define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
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#define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
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#define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
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#define IN_MULTICAST(a) IN_CLASSD(a)
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#define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
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#define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
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#define IN_LOOPBACKNET 127 /* official! */
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#define IN_LOOPBACKNET 127 /* official! */
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#define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = htonl(((u32_t)(a & 0xff) << 24) | ((u32_t)(b & 0xff) << 16) | \
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((u32_t)(c & 0xff) << 8) | (u32_t)(d & 0xff))
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#define IP4_ADDR(ipaddr, a,b,c,d) \
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(ipaddr)->addr = htonl(((u32_t)((a) & 0xff) << 24) | \
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((u32_t)((b) & 0xff) << 16) | \
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((u32_t)((c) & 0xff) << 8) | \
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(u32_t)((d) & 0xff))
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#define ip_addr_set(dest, src) (dest)->addr = \
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((src) == NULL? 0:\
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@ -137,23 +143,18 @@ u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
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#define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))
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#define ip_addr_debug_print(debug, ipaddr) \
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LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
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ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff : 0, \
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ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff : 0, \
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ipaddr ? (u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff : 0, \
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ipaddr ? (u16_t)ntohl((ipaddr)->addr) & 0xff : 0))
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#define ip_addr_debug_print(debug, ipaddr) LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
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ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff:0, \
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ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff:0, \
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ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff:0, \
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ipaddr?(u16_t)ntohl((ipaddr)->addr) & 0xff:0U))
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/* cast to unsigned int, as it is used as argument to printf functions
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* which expect integer arguments. CSi: use cc.h formatters (conversion chars)! */
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/* These are cast to u16_t, with the intent that they are often arguments
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* to printf using the U16_F format from cc.h. */
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#define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
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#define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
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#define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
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#define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
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#endif /* __LWIP_IP_ADDR_H__ */
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