ip_addr.h 2.0 KB

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  1. #ifndef __IP_ADDR_H__
  2. #define __IP_ADDR_H__
  3. #include "c_types.h"
  4. struct ip_addr {
  5. uint32 addr;
  6. };
  7. typedef struct ip_addr ip_addr_t;
  8. struct ip_info {
  9. struct ip_addr ip;
  10. struct ip_addr netmask;
  11. struct ip_addr gw;
  12. };
  13. #define IP4_ADDR(ipaddr, a,b,c,d) \
  14. (ipaddr)->addr = ((uint32)((d) & 0xff) << 24) | \
  15. ((uint32)((c) & 0xff) << 16) | \
  16. ((uint32)((b) & 0xff) << 8) | \
  17. (uint32)((a) & 0xff)
  18. /**
  19. * Determine if two address are on the same network.
  20. *
  21. * @arg addr1 IP address 1
  22. * @arg addr2 IP address 2
  23. * @arg mask network identifier mask
  24. * @return !0 if the network identifiers of both address match
  25. */
  26. #define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
  27. (mask)->addr) == \
  28. ((addr2)->addr & \
  29. (mask)->addr))
  30. /** Set an IP address given by the four byte-parts.
  31. Little-endian version that prevents the use of htonl. */
  32. #define IP4_ADDR(ipaddr, a,b,c,d) \
  33. (ipaddr)->addr = ((uint32)((d) & 0xff) << 24) | \
  34. ((uint32)((c) & 0xff) << 16) | \
  35. ((uint32)((b) & 0xff) << 8) | \
  36. (uint32)((a) & 0xff)
  37. #define ip4_addr1(ipaddr) (((uint8*)(ipaddr))[0])
  38. #define ip4_addr2(ipaddr) (((uint8*)(ipaddr))[1])
  39. #define ip4_addr3(ipaddr) (((uint8*)(ipaddr))[2])
  40. #define ip4_addr4(ipaddr) (((uint8*)(ipaddr))[3])
  41. #define ip4_addr1_16(ipaddr) ((uint16)ip4_addr1(ipaddr))
  42. #define ip4_addr2_16(ipaddr) ((uint16)ip4_addr2(ipaddr))
  43. #define ip4_addr3_16(ipaddr) ((uint16)ip4_addr3(ipaddr))
  44. #define ip4_addr4_16(ipaddr) ((uint16)ip4_addr4(ipaddr))
  45. /** 255.255.255.255 */
  46. #define IPADDR_NONE ((uint32)0xffffffffUL)
  47. /** 0.0.0.0 */
  48. #define IPADDR_ANY ((uint32)0x00000000UL)
  49. uint32 ipaddr_addr(const char *cp);
  50. #define IP2STR(ipaddr) ip4_addr1_16(ipaddr), \
  51. ip4_addr2_16(ipaddr), \
  52. ip4_addr3_16(ipaddr), \
  53. ip4_addr4_16(ipaddr)
  54. #define IPSTR "%d.%d.%d.%d"
  55. #endif /* __IP_ADDR_H__ */