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Added DHCP and BootP constructors from uint8_t buffer. Normalized IP destination and source address getters/setters.

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This commit is contained in:
Matias Fontanini
2011-08-19 10:13:35 -03:00
parent bb3ea10209
commit 3e2168f6fc
17 changed files with 161 additions and 73 deletions
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27
src/sniffer.cpp
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@@ -46,9 +46,12 @@ Tins::Sniffer::Sniffer(const string &device, unsigned max_packet_size) {
handle = pcap_open_live(device.c_str(), max_packet_size, 0, 0, error);
if(!handle)
throw runtime_error(error);
actual_filter.bf_insns = 0;
}
Tins::Sniffer::~Sniffer() {
if(actual_filter.bf_insns)
pcap_freecode(&actual_filter);
if(handle)
pcap_close(handle);
}
@@ -58,9 +61,12 @@ bool Tins::Sniffer::compile_set_filter(const string &filter, bpf_program &prog)
}
Tins::PDU *Tins::Sniffer::next_pdu(const string &filter) {
bpf_program prog;
if(!compile_set_filter(filter, prog))
return 0;
if(filter.size()) {
if(actual_filter.bf_insns)
pcap_freecode(&actual_filter);
if(!compile_set_filter(filter, actual_filter))
return 0;
}
pcap_pkthdr header;
PDU *ret = 0;
while(!ret) {
@@ -72,7 +78,6 @@ Tins::PDU *Tins::Sniffer::next_pdu(const string &filter) {
ret = 0;
}
}
pcap_freecode(&prog);
return ret;
}
@@ -80,13 +85,15 @@ void Tins::Sniffer::stop_sniff() {
pcap_breakloop(handle);
}
void Tins::Sniffer::sniff_loop(const std::string &filter, AbstractSnifferHandler *cback_handler, uint32_t max_packets) {
bpf_program prog;
if(compile_set_filter(filter, prog)) {
LoopData data(handle, cback_handler);
pcap_loop(handle, max_packets, Sniffer::callback_handler, (u_char*)&data);
pcap_freecode(&prog);
void Tins::Sniffer::sniff_loop(AbstractSnifferHandler *cback_handler, const string &filter, uint32_t max_packets) {
if(filter.size()) {
if(actual_filter.bf_insns)
pcap_freecode(&actual_filter);
if(!compile_set_filter(filter, actual_filter))
return;
}
LoopData data(handle, cback_handler);
pcap_loop(handle, max_packets, Sniffer::callback_handler, (u_char*)&data);
}
// Static