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Kernel+Utilities: Add the route utility

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This exposes the global routing table in the /proc directory and adds
the userspace utility to query dynamically add from the table.
This commit is contained in:
brapru 2022-03-12 14:16:44 -05:00 • committed by Brian Gianforcaro
parent 419cd479e2
commit 19912a0b32
3 changed files with 229 additions and 1 deletions
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37
Kernel/GlobalProcessExposed.cpp
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@ -100,6 +100,34 @@ private:
}
};
class ProcFSRoute final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSRoute> must_create();
private:
ProcFSRoute();
virtual ErrorOr<void> try_generate(KBufferBuilder& builder) override
{
auto array = TRY(JsonArraySerializer<>::try_create(builder));
TRY(routing_table().with([&](auto const& table) -> ErrorOr<void> {
for (auto& it : table) {
auto obj = TRY(array.add_object());
auto destination = TRY(it.destination.to_string());
TRY(obj.add("destination", destination->view()));
auto gateway = TRY(it.gateway.to_string());
TRY(obj.add("gateway", gateway->view()));
auto netmask = TRY(it.netmask.to_string());
TRY(obj.add("genmask", netmask->view()));
TRY(obj.add("interface", it.adapter->name()));
TRY(obj.finish());
}
return {};
}));
TRY(array.finish());
return {};
}
};
class ProcFSTCP final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSTCP> must_create();
@ -217,6 +245,10 @@ UNMAP_AFTER_INIT NonnullRefPtr<ProcFSARP> ProcFSARP::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSARP).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSRoute> ProcFSRoute::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSRoute).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSTCP> ProcFSTCP::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSTCP).release_nonnull();
@ -235,6 +267,7 @@ UNMAP_AFTER_INIT NonnullRefPtr<ProcFSNetworkDirectory> ProcFSNetworkDirectory::m
auto directory = adopt_ref(*new (nothrow) ProcFSNetworkDirectory(parent_directory));
directory->m_components.append(ProcFSAdapters::must_create());
directory->m_components.append(ProcFSARP::must_create());
directory->m_components.append(ProcFSRoute::must_create());
directory->m_components.append(ProcFSTCP::must_create());
directory->m_components.append(ProcFSLocalNet::must_create());
directory->m_components.append(ProcFSUDP::must_create());
@ -249,6 +282,10 @@ UNMAP_AFTER_INIT ProcFSARP::ProcFSARP()
: ProcFSGlobalInformation("arp"sv)
{
}
UNMAP_AFTER_INIT ProcFSRoute::ProcFSRoute()
: ProcFSGlobalInformation("route"sv)
{
}
UNMAP_AFTER_INIT ProcFSTCP::ProcFSTCP()
: ProcFSGlobalInformation("tcp"sv)
{