void Arp::arp_resolve(Packet_ptr pckt) {
debug("<ARP RESOLVE> %s\n", pckt->next_hop().str().c_str());
const auto next_hop = pckt->next_hop();
await_resolution(std::move(pckt), next_hop);
auto req = static_unique_ptr_cast<PacketArp>(inet_.create_packet(sizeof(header)));
req->init(mac_, inet_.ip_addr());
req->set_dest_mac(Ethernet::BROADCAST_FRAME);
req->set_dest_ip(next_hop);
req->set_opcode(H_request);
// Stat increment requests sent
requests_tx_++;
linklayer_out_(std::move(req));
}
void Arp::arp_respond(header* hdr_in) {
debug2("\t IP Match. Constructing ARP Reply\n");
// Stat increment replies sent
replies_tx_++;
// Populate ARP-header
auto res = static_unique_ptr_cast<PacketArp>(inet_.create_packet(sizeof(header)));
res->init(mac_, inet_.ip_addr());
res->set_dest_mac(hdr_in->shwaddr);
res->set_dest_ip(hdr_in->sipaddr);
res->set_opcode(H_reply);
debug2("\t My IP: %s belongs to My Mac: %s\n",
res->source_ip().str().c_str(), res->source_mac().str().c_str());
linklayer_out_(std::move(res));
}
unsigned char gsm_check_gprs( )
{
//check gprs
set_at_echo(0);//设置禁止回显
if( !check_gprs_net() ) {
return 6 ; //no gprs network
}
//check gprs attached
set_at_echo(0);//设置禁止回显
if( !check_gprs_att() ) {
prompt("GPRS attache failure! mg323.cgatt: %d\r\n", my_icar.mg323.cgatt);
return 7 ; //gprs attach failure
}
//set connect type
if( !set_conn_type( ) ) {
prompt("Set connect type error\r\n");
return 8 ; //set connect type error
}
//check apn
if( !get_apn_by_imsi( ) ) {
prompt("Get APN error\r\n");
return 9 ; //get apn error
}
debug_gsm("Get APN ok: %s %s %s\r\n", apn_list[my_icar.mg323.apn_index][1],\
apn_list[my_icar.mg323.apn_index][2],\
apn_list[my_icar.mg323.apn_index][3]);
//set APN
if( !set_gprs_apn( ) ) {
debug_gsm("Set APN error\r\n");
return 10 ; //set apn error
}
prompt("Set APN ok.\r\n");
if ( *(apn_list[my_icar.mg323.apn_index][2]) ) {
if( !set_gprs_user( ) ) {
debug_gsm("Set APN user error\r\n");
return 10 ; //set apn user error
}
}
if ( *(apn_list[my_icar.mg323.apn_index][3]) ) {
if( !set_gprs_passwd( ) ) {
debug_gsm("Set APN passwd error\r\n");
return 10 ; //set apn passwd error
}
}
//set connect ID
if( !set_conn_id( ) ) {
prompt("Set connect id error\r\n");
return 11 ; //set connect type error
}
//set service type, only support socket
if( !set_svr_type( ) ) {
prompt("Set service type error\r\n");
return 12 ; //set svr type error
}
//set destination IP and port
if( !set_dest_ip( ) ) {
prompt("Set dest IP and port error\r\n");
return 13 ; //set dest IP and port error
}
prompt("Initiate GPRS setting ok\r\n");
return 0 ;
}