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00043 #ifndef __UTIL_H__
00044 #define __UTIL_H__
00045
00046 #include "ipsec\types.h"
00047
00052 struct ipsec_ip_addr {
00053 __u32 addr ;
00054 };
00055
00056 struct ipsec_in_addr {
00057 __u32 s_addr;
00058 };
00059
00060 #define IPSEC_IP_ADDR_NONE ((__u32) 0xffffffff)
00061 #define IPSEC_IP_ADDR_LOCALHOST ((__u32) 0x7f000001)
00062 #define IPSEC_IP4_ADDR(ipaddr, a,b,c,d) ipaddr = ipsec_htonl(((__u32)(a & 0xff) << 24) | ((__u32)(b & 0xff) << 16) | \
00063 ((__u32)(c & 0xff) << 8) | (__u32)(d & 0xff))
00064
00065 #define IPSEC_IP4_ADDR_2(a,b,c,d) ((__u32)(d & 0xff) << 24) | ((__u32)(c & 0xff) << 16) | ((__u32)(b & 0xff) << 8) | (__u32)(a & 0xff)
00066 #define IPSEC_IP4_ADDR_NET(a,b,c,d) ((__u32)(d & 0xff) << 24) | ((__u32)(c & 0xff) << 16) | ((__u32)(b & 0xff) << 8) | (__u32)(a & 0xff)
00067
00068 #define IPSEC_HTONL(n) (((__u32)n & 0xff) << 24) | (((__u32)n & 0xff00) << 8) | (((__u32)n & 0xff0000) >> 8) | (((__u32)n & 0xff000000) >> 24)
00069
00070 #define IPSEC_HTONS(n) (((__u16)n & 0xff) << 8) | (((__u16)n & 0xff00) >> 8)
00071
00072
00073 __u32 ipsec_inet_addr(const char *cp) ;
00074 int ipsec_inet_aton(const char *cp, struct ipsec_in_addr *addr) ;
00075 __u8 *ipsec_inet_ntoa(__u32 addr) ;
00076
00077 #define ipsec_ip_addr_maskcmp(addr1, addr2, mask) ((addr1 & mask) == (addr2 & mask ))
00078 #define ipsec_ip_addr_cmp(addr1, addr2) (addr1 == addr2)
00079
00080
00081
00082 void ipsec_print_ip(ipsec_ip_header *header);
00083 void ipsec_dump_buffer(char *, unsigned char *, int, int);
00084
00085 ipsec_audit ipsec_check_replay_window(__u32 seq, __u32 lastSeq, __u32 bitField);
00086 ipsec_audit ipsec_update_replay_window(__u32 seq, __u32 *lastSeq, __u32 *bitField);
00087
00088
00089 __u16 ipsec_htons(__u16 n);
00090 __u16 ipsec_ntohs(__u16 n);
00091 __u32 ipsec_htonl(__u32 n);
00092 __u32 ipsec_ntohl(__u32 n);
00093
00094 __u16 ipsec_ip_chksum(void *dataptr, __u16 len);
00095
00096 #endif
00097
00098
00099