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avoid using libnet_clear_packet()

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wangyu- 2018-06-15 00:04:41 -05:00
parent af3d7e6c23
commit 23df5160d1
1 changed files with 13 additions and 7 deletions
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20
network.cpp
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@ -58,6 +58,8 @@ char g_packet_buf[buf_len]; //dirty code, fix it later
int g_packet_buf_len=1; int g_packet_buf_len=1;
int g_packet_buf_cnt=0; int g_packet_buf_cnt=0;
libnet_ptag_t g_ptag=0;
/* /*
struct sock_filter code_tcp_old[] = { struct sock_filter code_tcp_old[] = {
{ 0x28, 0, 0, 0x0000000c },//0 { 0x28, 0, 0, 0x0000000c },//0
@ -248,6 +250,8 @@ int init_raw_socket()
mylog(log_fatal,"libnet_init failed bc of [%s]\n",libnet_errbuf); mylog(log_fatal,"libnet_init failed bc of [%s]\n",libnet_errbuf);
myexit(-1); myexit(-1);
} }
g_ptag=0;
libnet_clear_packet(libnet_handle);
char pcap_errbuf[PCAP_ERRBUF_SIZE]; char pcap_errbuf[PCAP_ERRBUF_SIZE];
@ -761,18 +765,20 @@ int send_raw_ip(raw_info_t &raw_info,const char * payload,int payloadlen)
else*/ else*/
iph->check=0; iph->check=0;
g_ptag=libnet_build_ipv4(ip_tot_len, iph->tos, ntohs(iph->id), ntohs(iph->frag_off),
iph->ttl , send_info.protocol, iph->check , iph->saddr, iph->daddr,
(const unsigned char *)payload, payloadlen, libnet_handle, g_ptag);
assert(g_ptag!=-1 &&g_ptag!=0);
int ret; int ret;
ret=libnet_build_ipv4(ip_tot_len, iph->tos, ntohs(iph->id), ntohs(iph->frag_off),
iph->ttl , send_info.protocol, iph->check , iph->saddr, iph->daddr,
(const unsigned char *)payload, payloadlen, libnet_handle, 0);
assert(ret!=-1);
ret= libnet_write(libnet_handle); ret= libnet_write(libnet_handle);
assert(ret!=-1); assert(ret!=-1);
libnet_clear_packet(libnet_handle);
/* /*