ed13a0a262
Each supported protocol now has an attribute with the name of the protocol in the config tag. Each of these attributes accepts one of four possible values: * no - do not print out this protocol * name - print only the protocol name * default - print a short summary of the most important header values * all - print all available header values Example: ! <config eth="name" ! arp="all" ! ipv4="default" ! dhcp="no" ! icmp="all" ! udp="no" ! tcp="default" ! ... /> Corresponding output example: ! ETH IPV4 10.0.2.212 > 10.0.2.55 time 7158 ms (Δ 11 ms) ! ETH IPV4 10.0.2.55 > 10.0.2.201 TCP 80 > 49154 flags ' time 6976 ms (Δ 5 ms) ! ETH ARP hw 1 prot 2048 hwsz 6 protsz 4 op 1 srcmac 02:02:02:02:02:01 srcip 10.0.2.212 dstmac 00:00:00:00:00:00 dstip 10.0.2.55 time 7074 ms (Δ 98 ms) Issue #2738
335 lines
7.5 KiB
C++
335 lines
7.5 KiB
C++
/*
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* \brief Configurable print functionality for network packets
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* \author Martin Stein
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* \date 2017-09-27
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*/
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/*
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* Copyright (C) 2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* local includes */
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#include <packet_log.h>
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using namespace Genode;
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using namespace Net;
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template <>
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void Packet_log<Dhcp_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.dhcp) {
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case Packet_log_style::ALL:
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print(output, "\033[32mDHCP\033[0m");
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print(output, " op ", _pkt.op());
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print(output, " htyp ", (uint8_t)_pkt.htype());
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print(output, " hlen ", _pkt.hlen());
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print(output, " hps ", _pkt.hops());
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print(output, " xid ", _pkt.xid());
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print(output, " sec ", _pkt.secs());
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print(output, " flg ", Hex(_pkt.flags()));
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print(output, " ci ", _pkt.ciaddr());
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print(output, " yi ", _pkt.yiaddr());
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print(output, " si ", _pkt.siaddr());
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print(output, " gi ", _pkt.giaddr());
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print(output, " ch ", _pkt.client_mac());
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print(output, " srv ", _pkt.server_name());
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print(output, " file ", _pkt.file());
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print(output, " mag ", _pkt.magic_cookie());
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print(output, " opt");
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_pkt.for_each_option([&] (Dhcp_packet::Option &opt) {
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print(output, " ", opt);
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});
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mDHCP\033[0m ", _pkt.client_mac(), " > ",
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_pkt.siaddr(), " cmd ", _pkt.op());
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mDHCP\033[0m");
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break;
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default: ;
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}
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}
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void Dhcp_packet::Option::print(Output &output) const
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{
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using Genode::print;
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print(output, _code, ":", _len);
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if (!len()) {
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return;
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}
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print(output, ":");
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for (unsigned j = 0; j < len(); j++) {
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print(output, Hex(_value[j], Hex::OMIT_PREFIX, Hex::PAD));
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}
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}
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template <>
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void Packet_log<Arp_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.arp) {
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case Packet_log_style::ALL:
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print(output, "\033[32mARP\033[0m");
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print(output, " hw ", _pkt.hardware_address_type());
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print(output, " prot ", _pkt.protocol_address_type());
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print(output, " hwsz ", _pkt.hardware_address_size());
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print(output, " protsz ", _pkt.protocol_address_size());
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print(output, " op ", _pkt.opcode());
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if (_pkt.ethernet_ipv4()) {
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print(output, " srcmac ", _pkt.src_mac());
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print(output, " srcip ", _pkt.src_ip());
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print(output, " dstmac ", _pkt.dst_mac());
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print(output, " dstip ", _pkt.dst_ip());
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} else {
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print(output, " ...");
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}
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mARP\033[0m ", _pkt.src_mac(), " ",
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_pkt.src_ip(), " > ", _pkt.dst_mac(), " ", _pkt.dst_ip(),
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" cmd ", _pkt.opcode());
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mARP\033[0m");
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break;
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default: ;
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}
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}
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template <>
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void Packet_log<Ethernet_frame>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.eth) {
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case Packet_log_style::ALL:
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print(output, "\033[32mETH\033[0m");
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print(output, " src ", _pkt.src());
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print(output, " dst ", _pkt.dst());
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print(output, " typ ", (Genode::uint16_t)_pkt.type());
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mETH\033[0m ", _pkt.src(), " > ", _pkt.dst(),
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" ");
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mETH\033[0m");
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break;
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default: ;
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}
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/* print encapsulated packet */
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switch (_pkt.type()) {
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case Ethernet_frame::Type::ARP:
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print(output, " ", packet_log(*_pkt.data<Arp_packet const>(~0UL), _cfg));
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break;
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case Ethernet_frame::Type::IPV4:
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print(output, " ", packet_log(*_pkt.data<Ipv4_packet const>(~0UL), _cfg));
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break;
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default: ;
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}
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}
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template <>
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void Packet_log<Ipv4_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.ipv4) {
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case Packet_log_style::ALL:
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print(output, "\033[32mIPV4\033[0m");
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print(output, " hdrlen ", _pkt.header_length());
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print(output, " ver ", _pkt.version());
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print(output, " dsrv ", _pkt.diff_service());
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print(output, " ecn ", _pkt.ecn());
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print(output, " len ", _pkt.total_length());
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print(output, " id ", _pkt.identification());
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print(output, " flg ", _pkt.flags());
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print(output, " frgoff ", _pkt.fragment_offset());
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print(output, " ttl ", _pkt.time_to_live());
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print(output, " prot ", (uint8_t)_pkt.protocol());
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print(output, " crc ", _pkt.checksum());
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print(output, " src ", _pkt.src());
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print(output, " dst ", _pkt.dst());
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mIPV4\033[0m ", _pkt.src(), " > ", _pkt.dst(),
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" ");
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mIPV4\033[0m");
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break;
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default: ;
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}
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/* print encapsulated packet */
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switch (_pkt.protocol()) {
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case Ipv4_packet::Protocol::TCP:
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print(output, " ", packet_log(*_pkt.data<Tcp_packet const>(~0UL), _cfg));
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break;
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case Ipv4_packet::Protocol::UDP:
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print(output, " ", packet_log(*_pkt.data<Udp_packet const>(~0UL), _cfg));
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break;
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case Ipv4_packet::Protocol::ICMP:
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print(output, " ", packet_log(*_pkt.data<Icmp_packet const>(~0UL), _cfg));
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break;
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default: ; }
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}
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template <>
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void Packet_log<Tcp_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.tcp) {
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case Packet_log_style::ALL:
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print(output, "\033[32mTCP\033[0m");
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print(output, " src ", _pkt.src_port());
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print(output, " dst ", _pkt.dst_port());
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print(output, " seqn ", _pkt.seq_nr());
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print(output, " ackn ", _pkt.ack_nr());
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print(output, " doff ", _pkt.data_offset());
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print(output, " flg ", _pkt.flags());
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print(output, " winsz ", _pkt.window_size());
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print(output, " crc ", _pkt.checksum());
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print(output, " urgp ", _pkt.urgent_ptr());
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mTCP\033[0m ", _pkt.src_port(), " > ",
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_pkt.dst_port(), " flags '");
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mTCP\033[0m");
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break;
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default: ;
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}
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}
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template <>
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void Packet_log<Udp_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.udp) {
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case Packet_log_style::ALL:
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print(output, "\033[32mUDP\033[0m");
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print(output, " src ", _pkt.src_port());
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print(output, " dst ", _pkt.dst_port());
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print(output, " len ", _pkt.length());
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print(output, " crc ", _pkt.checksum());
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mUDP\033[0m ", _pkt.src_port(), " > ",
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_pkt.dst_port(), " ");
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mUDP\033[0m");
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break;
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default: ;
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}
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/* print encapsulated packet */
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if (Dhcp_packet::is_dhcp(&_pkt)) {
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print(output, " ", packet_log(*_pkt.data<Dhcp_packet const>(~0UL), _cfg));
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}
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}
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template <>
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void Packet_log<Icmp_packet>::print(Output &output) const
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{
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using Genode::print;
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/* print header attributes */
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switch (_cfg.icmp) {
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case Packet_log_style::ALL:
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print(output, "\033[32mICMP\033[0m");
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print(output, " typ ", (unsigned)_pkt.type());
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print(output, " cod ", (unsigned)_pkt.code());
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print(output, " crc ", _pkt.checksum());
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print(output, " roh ", _pkt.rest_of_header());
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break;
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case Packet_log_style::DEFAULT:
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print(output, "\033[32mICMP\033[0m ", (unsigned)_pkt.type(), " ",
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(unsigned)_pkt.code());
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break;
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case Packet_log_style::NAME:
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print(output, "\033[32mICMP\033[0m");
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break;
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default: ;
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}
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}
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