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Kernel: Record network statistics and expose as JSON

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This is comprised of five small changes:

* Keep a counter for tx/rx packets/bytes per TCP socket
* Keep a counter for tx/rx packets/bytes per network adapter
* Expose that data in /proc/net_tcp and /proc/netadapters
* Convert /proc/netadapters to JSON
* Fix up ifconfig to read the JSON from netadapters
This commit is contained in:
Conrad Pankoff 2019-08-08 12:32:35 +10:00 • committed by Andreas Kling
parent 061c092fae
commit 7ed54d86d5
7 changed files with 88 additions and 20 deletions
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25
Kernel/FileSystem/ProcFS.cpp
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@ -269,15 +269,20 @@ Optional<KBuffer> procfs$cmdline(InodeIdentifier)
Optional<KBuffer> procfs$netadapters(InodeIdentifier)
{
KBufferBuilder builder;
NetworkAdapter::for_each([&builder](auto& adapter) {
builder.appendf("%s,%s,%s,%s\n",
adapter.name().characters(),
adapter.class_name(),
adapter.mac_address().to_string().characters(),
adapter.ipv4_address().to_string().characters());
JsonArray json;
NetworkAdapter::for_each([&json](auto& adapter) {
JsonObject obj;
obj.set("name", adapter.name());
obj.set("class_name", adapter.class_name());
obj.set("mac_address", adapter.mac_address().to_string());
obj.set("ipv4_address", adapter.ipv4_address().to_string());
obj.set("packets_in", adapter.packets_in());
obj.set("bytes_in", adapter.bytes_in());
obj.set("packets_out", adapter.packets_out());
obj.set("bytes_out", adapter.bytes_out());
json.append(obj);
});
return builder.build();
return json.serialized<KBufferBuilder>();
}
Optional<KBuffer> procfs$net_tcp(InodeIdentifier)
@ -292,6 +297,10 @@ Optional<KBuffer> procfs$net_tcp(InodeIdentifier)
obj.set("state", TCPSocket::to_string(socket->state()));
obj.set("ack_number", socket->ack_number());
obj.set("sequence_number", socket->sequence_number());
obj.set("packets_in", socket->packets_in());
obj.set("bytes_in", socket->bytes_in());
obj.set("packets_out", socket->packets_out());
obj.set("bytes_out", socket->bytes_out());
json.append(obj);
});
return json.serialized<KBufferBuilder>();