00001 #include <stdio.h> 00002 #include <stdlib.h> 00003 #include <string.h> 00004 #include <errno.h> 00005 #include <arpa/inet.h> 00006 00007 #include <libnetfilter_conntrack/libnetfilter_conntrack.h> 00008 00009 static int cb(enum nf_conntrack_msg_type type, 00010 struct nf_expect *exp, 00011 void *data) 00012 { 00013 char buf[1024]; 00014 00015 nfexp_snprintf(buf, 1024, exp, NFCT_T_UNKNOWN, NFCT_O_DEFAULT, 0); 00016 printf("%s\n", buf); 00017 00018 return NFCT_CB_CONTINUE; 00019 } 00020 00021 int main(void) 00022 { 00023 int ret; 00024 struct nfct_handle *h; 00025 struct nf_conntrack *master; 00026 struct nf_expect *exp; 00027 00028 master = nfct_new(); 00029 if (!master) { 00030 perror("nfct_new"); 00031 exit(EXIT_FAILURE); 00032 } 00033 00034 nfct_set_attr_u8(master, ATTR_L3PROTO, AF_INET); 00035 nfct_set_attr_u32(master, ATTR_IPV4_SRC, inet_addr("4.4.4.4")); 00036 nfct_set_attr_u32(master, ATTR_IPV4_DST, inet_addr("5.5.5.5")); 00037 00038 nfct_set_attr_u8(master, ATTR_L4PROTO, IPPROTO_TCP); 00039 nfct_set_attr_u16(master, ATTR_PORT_SRC, htons(10240)); 00040 nfct_set_attr_u16(master, ATTR_PORT_DST, htons(10241)); 00041 00042 exp = nfexp_new(); 00043 if (!exp) { 00044 perror("nfexp_new"); 00045 exit(EXIT_FAILURE); 00046 } 00047 00048 nfexp_set_attr(exp, ATTR_EXP_MASTER, master); 00049 00050 h = nfct_open(EXPECT, 0); 00051 if (!h) { 00052 perror("nfct_open"); 00053 return -1; 00054 } 00055 00056 nfexp_callback_register(h, NFCT_T_ALL, cb, NULL); 00057 ret = nfexp_query(h, NFCT_Q_GET, exp); 00058 00059 printf("TEST: get expectation "); 00060 if (ret == -1) 00061 printf("(%d)(%s)\n", ret, strerror(errno)); 00062 else 00063 printf("(OK)\n"); 00064 00065 nfct_close(h); 00066 00067 ret == -1 ? exit(EXIT_FAILURE) : exit(EXIT_SUCCESS); 00068 }