wanderer/fastnetmon-rewritten
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Code Issues Releases Activity

Add option for dumping Other packets

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This commit is contained in:
Pavel Odintsov 2015-09-29 17:00:02 +02:00
parent 80e0d2de90
commit e52e312adf
2 changed files with 16 additions and 2 deletions
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4
docs/FINE_TUNING.md
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@ -17,12 +17,14 @@ Please keep in mind when run tool on OpenVZ because without root permissions too
Debugging flags.
DUMP_ALL_PACKETS will enable all packets dumping to console. It's very useful for testing tool on non standard platforms.
DUMP_ALL_PACKETS will enable all packets dumping to /var/log/fastnetmon.log. It's very useful for testing tool on non standard platforms.
```bash
DUMP_ALL_PACKETS=yes ./fastnetmon
```
If you want to dump only "other" (we could not detect direction for this packets) packets, please use: DUMP_OTHER_PACKETS.
Recommended configuration options for ixgbe Intel X540 driver (netmap mode):
```bash
cat /etc/modprobe.d/ixgbe.conf

14
src/fastnetmon.cpp
View File

@ -257,6 +257,9 @@ bool DEBUG = 0;
// flag about dumping all packets to log
bool DEBUG_DUMP_ALL_PACKETS = false;
// dump "other" packets
bool DEBUG_DUMP_OTHER_PACKETS = false;
// Period for update screen for console version of tool
unsigned int check_period = 3;
@ -1478,6 +1481,11 @@ void process_packet(simple_packet& current_packet) {
direction packet_direction = get_packet_direction(lookup_tree_ipv4, current_packet.src_ip, current_packet.dst_ip, subnet, subnet_cidr_mask);
// It's useful in case when we can't find what packets do not processed correctly
if (DEBUG_DUMP_OTHER_PACKETS && packet_direction == OTHER) {
logger << log4cpp::Priority::INFO << "Dump other: " << print_simple_packet(current_packet);
}
// Skip processing of specific traffic direction
if ((packet_direction == INCOMING && !process_incoming_traffic) or
(packet_direction == OUTGOING && !process_outgoing_traffic)) {
@ -1547,7 +1555,7 @@ void process_packet(simple_packet& current_packet) {
uint64_t sampled_number_of_bytes = current_packet.length * current_packet.sample_ratio;
__sync_fetch_and_add(&total_counters[packet_direction].packets, sampled_number_of_packets);
__sync_fetch_and_add(&total_counters[packet_direction].bytes, sampled_number_of_bytes);
__sync_fetch_and_add(&total_counters[packet_direction].bytes, sampled_number_of_bytes);
// Incerementi main and per protocol packet counters
if (packet_direction == OUTGOING) {
@ -2535,6 +2543,10 @@ int main(int argc, char** argv) {
DEBUG_DUMP_ALL_PACKETS = true;
}
if (getenv("DUMP_OTHER_PACKETS") != NULL) {
DEBUG_DUMP_OTHER_PACKETS = true;
}
if (sizeof(packed_conntrack_hash) != sizeof(uint64_t) or sizeof(packed_conntrack_hash) != 8) {
logger << log4cpp::Priority::INFO << "Assertion about size of packed_conntrack_hash, it's "
<< sizeof(packed_conntrack_hash) << " instead 8";