ladybird/Kernel/GlobalProcessExposed.cpp

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/*
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/JsonObjectSerializer.h>
#include <AK/UBSanitizer.h>
#include <Kernel/Arch/x86/CPU.h>
#include <Kernel/Arch/x86/InterruptDisabler.h>
#include <Kernel/Arch/x86/ProcessorInfo.h>
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/CommandLine.h>
#include <Kernel/ConsoleDevice.h>
#include <Kernel/Devices/HID/HIDManagement.h>
#include <Kernel/FileSystem/Custody.h>
#include <Kernel/FileSystem/FileBackedFileSystem.h>
#include <Kernel/FileSystem/FileDescription.h>
#include <Kernel/Heap/kmalloc.h>
#include <Kernel/Interrupts/GenericInterruptHandler.h>
#include <Kernel/Interrupts/InterruptManagement.h>
#include <Kernel/KBufferBuilder.h>
#include <Kernel/Module.h>
#include <Kernel/Net/LocalSocket.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/Net/NetworkingManagement.h>
#include <Kernel/Net/Routing.h>
#include <Kernel/Net/TCPSocket.h>
#include <Kernel/Net/UDPSocket.h>
#include <Kernel/ProcessExposed.h>
#include <Kernel/Sections.h>
#include <Kernel/TTY/TTY.h>
namespace Kernel {
class ProcFSAdapters final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSAdapters> must_create();
private:
ProcFSAdapters();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
NetworkingManagement::the().for_each([&array](auto& adapter) {
auto obj = array.add_object();
obj.add("name", adapter.name());
obj.add("class_name", adapter.class_name());
obj.add("mac_address", adapter.mac_address().to_string());
if (!adapter.ipv4_address().is_zero()) {
obj.add("ipv4_address", adapter.ipv4_address().to_string());
obj.add("ipv4_netmask", adapter.ipv4_netmask().to_string());
}
if (!adapter.ipv4_gateway().is_zero())
obj.add("ipv4_gateway", adapter.ipv4_gateway().to_string());
obj.add("packets_in", adapter.packets_in());
obj.add("bytes_in", adapter.bytes_in());
obj.add("packets_out", adapter.packets_out());
obj.add("bytes_out", adapter.bytes_out());
obj.add("link_up", adapter.link_up());
obj.add("mtu", adapter.mtu());
});
array.finish();
return true;
}
};
class ProcFSARP final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSARP> must_create();
private:
ProcFSARP();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
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MutexLocker locker(arp_table().lock(), Mutex::Mode::Shared);
for (auto& it : arp_table().resource()) {
auto obj = array.add_object();
obj.add("mac_address", it.value.to_string());
obj.add("ip_address", it.key.to_string());
}
array.finish();
return true;
}
};
class ProcFSTCP final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSTCP> must_create();
private:
ProcFSTCP();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
TCPSocket::for_each([&array](auto& socket) {
auto obj = array.add_object();
obj.add("local_address", socket.local_address().to_string());
obj.add("local_port", socket.local_port());
obj.add("peer_address", socket.peer_address().to_string());
obj.add("peer_port", socket.peer_port());
obj.add("state", TCPSocket::to_string(socket.state()));
obj.add("ack_number", socket.ack_number());
obj.add("sequence_number", socket.sequence_number());
obj.add("packets_in", socket.packets_in());
obj.add("bytes_in", socket.bytes_in());
obj.add("packets_out", socket.packets_out());
obj.add("bytes_out", socket.bytes_out());
});
array.finish();
return true;
}
};
class ProcFSLocalNet final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSLocalNet> must_create();
private:
ProcFSLocalNet();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
LocalSocket::for_each([&array](auto& socket) {
auto obj = array.add_object();
obj.add("path", String(socket.socket_path()));
obj.add("origin_pid", socket.origin_pid());
obj.add("origin_uid", socket.origin_uid());
obj.add("origin_gid", socket.origin_gid());
obj.add("acceptor_pid", socket.acceptor_pid());
obj.add("acceptor_uid", socket.acceptor_uid());
obj.add("acceptor_gid", socket.acceptor_gid());
});
array.finish();
return true;
}
};
class ProcFSUDP final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSUDP> must_create();
private:
ProcFSUDP();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
UDPSocket::for_each([&array](auto& socket) {
auto obj = array.add_object();
obj.add("local_address", socket.local_address().to_string());
obj.add("local_port", socket.local_port());
obj.add("peer_address", socket.peer_address().to_string());
obj.add("peer_port", socket.peer_port());
});
array.finish();
return true;
}
};
class ProcFSNetworkDirectory : public ProcFSExposedDirectory {
public:
static NonnullRefPtr<ProcFSNetworkDirectory> must_create(const ProcFSRootDirectory& parent_directory);
private:
ProcFSNetworkDirectory(const ProcFSRootDirectory& parent_directory);
};
class ProcFSSystemDirectory : public ProcFSExposedDirectory {
public:
static NonnullRefPtr<ProcFSSystemDirectory> must_create(const ProcFSRootDirectory& parent_directory);
private:
ProcFSSystemDirectory(const ProcFSRootDirectory& parent_directory);
};
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSAdapters> ProcFSAdapters::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSAdapters).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSARP> ProcFSARP::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSARP).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSTCP> ProcFSTCP::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSTCP).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSLocalNet> ProcFSLocalNet::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSLocalNet).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSUDP> ProcFSUDP::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSUDP).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSNetworkDirectory> ProcFSNetworkDirectory::must_create(const ProcFSRootDirectory& parent_directory)
{
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(ProcFSTCP::must_create());
directory->m_components.append(ProcFSLocalNet::must_create());
directory->m_components.append(ProcFSUDP::must_create());
return directory;
}
UNMAP_AFTER_INIT ProcFSAdapters::ProcFSAdapters()
: ProcFSGlobalInformation("adapters"sv)
{
}
UNMAP_AFTER_INIT ProcFSARP::ProcFSARP()
: ProcFSGlobalInformation("arp"sv)
{
}
UNMAP_AFTER_INIT ProcFSTCP::ProcFSTCP()
: ProcFSGlobalInformation("tcp"sv)
{
}
UNMAP_AFTER_INIT ProcFSLocalNet::ProcFSLocalNet()
: ProcFSGlobalInformation("local"sv)
{
}
UNMAP_AFTER_INIT ProcFSUDP::ProcFSUDP()
: ProcFSGlobalInformation("udp"sv)
{
}
UNMAP_AFTER_INIT ProcFSNetworkDirectory::ProcFSNetworkDirectory(const ProcFSRootDirectory& parent_directory)
: ProcFSExposedDirectory("net"sv, parent_directory)
{
}
class ProcFSDumpKmallocStacks : public ProcFSSystemBoolean {
public:
static NonnullRefPtr<ProcFSDumpKmallocStacks> must_create(const ProcFSSystemDirectory&);
virtual bool value() const override
{
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MutexLocker locker(m_lock);
return g_dump_kmalloc_stacks;
}
virtual void set_value(bool new_value) override
{
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MutexLocker locker(m_lock);
g_dump_kmalloc_stacks = new_value;
}
private:
ProcFSDumpKmallocStacks();
mutable Mutex m_lock;
};
class ProcFSUBSanDeadly : public ProcFSSystemBoolean {
public:
static NonnullRefPtr<ProcFSUBSanDeadly> must_create(const ProcFSSystemDirectory&);
virtual bool value() const override
{
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MutexLocker locker(m_lock);
return AK::UBSanitizer::g_ubsan_is_deadly;
}
virtual void set_value(bool new_value) override
{
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MutexLocker locker(m_lock);
AK::UBSanitizer::g_ubsan_is_deadly = new_value;
}
private:
ProcFSUBSanDeadly();
mutable Mutex m_lock;
};
class ProcFSCapsLockRemap : public ProcFSSystemBoolean {
public:
static NonnullRefPtr<ProcFSCapsLockRemap> must_create(const ProcFSSystemDirectory&);
virtual bool value() const override
{
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MutexLocker locker(m_lock);
return g_caps_lock_remapped_to_ctrl.load();
}
virtual void set_value(bool new_value) override
{
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MutexLocker locker(m_lock);
g_caps_lock_remapped_to_ctrl.exchange(new_value);
}
private:
ProcFSCapsLockRemap();
mutable Mutex m_lock;
};
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSDumpKmallocStacks> ProcFSDumpKmallocStacks::must_create(const ProcFSSystemDirectory&)
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSDumpKmallocStacks).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSUBSanDeadly> ProcFSUBSanDeadly::must_create(const ProcFSSystemDirectory&)
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSUBSanDeadly).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSCapsLockRemap> ProcFSCapsLockRemap::must_create(const ProcFSSystemDirectory&)
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSCapsLockRemap).release_nonnull();
}
UNMAP_AFTER_INIT ProcFSDumpKmallocStacks::ProcFSDumpKmallocStacks()
: ProcFSSystemBoolean("kmalloc_stacks"sv)
{
}
UNMAP_AFTER_INIT ProcFSUBSanDeadly::ProcFSUBSanDeadly()
: ProcFSSystemBoolean("ubsan_is_deadly"sv)
{
}
UNMAP_AFTER_INIT ProcFSCapsLockRemap::ProcFSCapsLockRemap()
: ProcFSSystemBoolean("caps_lock_to_ctrl"sv)
{
}
class ProcFSSelfProcessDirectory final : public ProcFSExposedLink {
public:
static NonnullRefPtr<ProcFSSelfProcessDirectory> must_create();
private:
ProcFSSelfProcessDirectory();
virtual bool acquire_link(KBufferBuilder& builder) override
{
builder.appendff("{}", Process::current()->pid().value());
return true;
}
};
class ProcFSDiskUsage final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSDiskUsage> must_create();
private:
ProcFSDiskUsage();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
VirtualFileSystem::the().for_each_mount([&array](auto& mount) {
auto& fs = mount.guest_fs();
auto fs_object = array.add_object();
fs_object.add("class_name", fs.class_name());
fs_object.add("total_block_count", fs.total_block_count());
fs_object.add("free_block_count", fs.free_block_count());
fs_object.add("total_inode_count", fs.total_inode_count());
fs_object.add("free_inode_count", fs.free_inode_count());
fs_object.add("mount_point", mount.absolute_path());
fs_object.add("block_size", static_cast<u64>(fs.block_size()));
fs_object.add("readonly", fs.is_readonly());
fs_object.add("mount_flags", mount.flags());
if (fs.is_file_backed())
fs_object.add("source", static_cast<const FileBackedFileSystem&>(fs).file_description().absolute_path());
else
fs_object.add("source", "none");
});
array.finish();
return true;
}
};
class ProcFSMemoryStatus final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSMemoryStatus> must_create();
private:
ProcFSMemoryStatus();
virtual bool output(KBufferBuilder& builder) override
{
InterruptDisabler disabler;
kmalloc_stats stats;
get_kmalloc_stats(stats);
auto system_memory = MemoryManager::the().get_system_memory_info();
JsonObjectSerializer<KBufferBuilder> json { builder };
json.add("kmalloc_allocated", stats.bytes_allocated);
json.add("kmalloc_available", stats.bytes_free);
json.add("kmalloc_eternal_allocated", stats.bytes_eternal);
json.add("user_physical_allocated", system_memory.user_physical_pages_used);
json.add("user_physical_available", system_memory.user_physical_pages - system_memory.user_physical_pages_used);
json.add("user_physical_committed", system_memory.user_physical_pages_committed);
json.add("user_physical_uncommitted", system_memory.user_physical_pages_uncommitted);
json.add("super_physical_allocated", system_memory.super_physical_pages_used);
json.add("super_physical_available", system_memory.super_physical_pages - system_memory.super_physical_pages_used);
json.add("kmalloc_call_count", stats.kmalloc_call_count);
json.add("kfree_call_count", stats.kfree_call_count);
slab_alloc_stats([&json](size_t slab_size, size_t num_allocated, size_t num_free) {
auto prefix = String::formatted("slab_{}", slab_size);
json.add(String::formatted("{}_num_allocated", prefix), num_allocated);
json.add(String::formatted("{}_num_free", prefix), num_free);
});
json.finish();
return true;
}
};
class ProcFSOverallProcesses final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSOverallProcesses> must_create();
private:
ProcFSOverallProcesses();
virtual bool output(KBufferBuilder& builder) override
{
JsonObjectSerializer<KBufferBuilder> json { builder };
// Keep this in sync with CProcessStatistics.
auto build_process = [&](JsonArraySerializer<KBufferBuilder>& array, const Process& process) {
auto process_object = array.add_object();
if (process.is_user_process()) {
StringBuilder pledge_builder;
#define __ENUMERATE_PLEDGE_PROMISE(promise) \
if (process.has_promised(Pledge::promise)) { \
pledge_builder.append(#promise " "); \
}
ENUMERATE_PLEDGE_PROMISES
#undef __ENUMERATE_PLEDGE_PROMISE
process_object.add("pledge", pledge_builder.to_string());
switch (process.veil_state()) {
case VeilState::None:
process_object.add("veil", "None");
break;
case VeilState::Dropped:
process_object.add("veil", "Dropped");
break;
case VeilState::Locked:
process_object.add("veil", "Locked");
break;
}
} else {
process_object.add("pledge", String());
process_object.add("veil", String());
}
process_object.add("pid", process.pid().value());
process_object.add("pgid", process.tty() ? process.tty()->pgid().value() : 0);
process_object.add("pgp", process.pgid().value());
process_object.add("sid", process.sid().value());
process_object.add("uid", process.uid());
process_object.add("gid", process.gid());
process_object.add("ppid", process.ppid().value());
process_object.add("nfds", process.fds().open_count());
process_object.add("name", process.name());
process_object.add("executable", process.executable() ? process.executable()->absolute_path() : "");
process_object.add("tty", process.tty() ? process.tty()->tty_name() : "notty");
process_object.add("amount_virtual", process.space().amount_virtual());
process_object.add("amount_resident", process.space().amount_resident());
process_object.add("amount_dirty_private", process.space().amount_dirty_private());
process_object.add("amount_clean_inode", process.space().amount_clean_inode());
process_object.add("amount_shared", process.space().amount_shared());
process_object.add("amount_purgeable_volatile", process.space().amount_purgeable_volatile());
process_object.add("amount_purgeable_nonvolatile", process.space().amount_purgeable_nonvolatile());
process_object.add("dumpable", process.is_dumpable());
process_object.add("kernel", process.is_kernel_process());
auto thread_array = process_object.add_array("threads");
process.for_each_thread([&](const Thread& thread) {
auto thread_object = thread_array.add_object();
#if LOCK_DEBUG
thread_object.add("lock_count", thread.lock_count());
#endif
thread_object.add("tid", thread.tid().value());
thread_object.add("name", thread.name());
thread_object.add("times_scheduled", thread.times_scheduled());
thread_object.add("time_user", thread.time_in_user());
thread_object.add("time_kernel", thread.time_in_kernel());
thread_object.add("state", thread.state_string());
thread_object.add("cpu", thread.cpu());
thread_object.add("priority", thread.priority());
thread_object.add("syscall_count", thread.syscall_count());
thread_object.add("inode_faults", thread.inode_faults());
thread_object.add("zero_faults", thread.zero_faults());
thread_object.add("cow_faults", thread.cow_faults());
thread_object.add("file_read_bytes", thread.file_read_bytes());
thread_object.add("file_write_bytes", thread.file_write_bytes());
thread_object.add("unix_socket_read_bytes", thread.unix_socket_read_bytes());
thread_object.add("unix_socket_write_bytes", thread.unix_socket_write_bytes());
thread_object.add("ipv4_socket_read_bytes", thread.ipv4_socket_read_bytes());
thread_object.add("ipv4_socket_write_bytes", thread.ipv4_socket_write_bytes());
});
};
ScopedSpinLock lock(g_scheduler_lock);
{
{
auto array = json.add_array("processes");
auto processes = Process::all_processes();
build_process(array, *Scheduler::colonel());
for (auto& process : processes)
build_process(array, process);
}
auto total_time_scheduled = Scheduler::get_total_time_scheduled();
json.add("total_time", total_time_scheduled.total);
json.add("total_time_kernel", total_time_scheduled.total_kernel);
}
return true;
}
};
class ProcFSCPUInformation final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSCPUInformation> must_create();
private:
ProcFSCPUInformation();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
Processor::for_each(
[&](Processor& proc) {
auto& info = proc.info();
auto obj = array.add_object();
obj.add("processor", proc.get_id());
obj.add("cpuid", info.cpuid());
obj.add("family", info.display_family());
auto features_array = obj.add_array("features");
for (auto& feature : info.features().split(' '))
features_array.add(feature);
features_array.finish();
obj.add("model", info.display_model());
obj.add("stepping", info.stepping());
obj.add("type", info.type());
obj.add("brandstr", info.brandstr());
});
array.finish();
return true;
}
};
class ProcFSDmesg final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSDmesg> must_create();
private:
ProcFSDmesg();
virtual bool output(KBufferBuilder& builder) override
{
InterruptDisabler disabler;
for (char ch : ConsoleDevice::the().logbuffer())
builder.append(ch);
return true;
}
};
class ProcFSInterrupts final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSInterrupts> must_create();
private:
ProcFSInterrupts();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
InterruptManagement::the().enumerate_interrupt_handlers([&array](GenericInterruptHandler& handler) {
auto obj = array.add_object();
obj.add("purpose", handler.purpose());
obj.add("interrupt_line", handler.interrupt_number());
obj.add("controller", handler.controller());
obj.add("cpu_handler", 0); // FIXME: Determine the responsible CPU for each interrupt handler.
obj.add("device_sharing", (unsigned)handler.sharing_devices_count());
obj.add("call_count", (unsigned)handler.get_invoking_count());
});
array.finish();
return true;
}
};
class ProcFSKeymap final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSKeymap> must_create();
private:
ProcFSKeymap();
virtual bool output(KBufferBuilder& builder) override
{
JsonObjectSerializer<KBufferBuilder> json { builder };
json.add("keymap", HIDManagement::the().keymap_name());
json.finish();
return true;
}
};
// FIXME: Remove this after we enumerate the SysFS from lspci and SystemMonitor
class ProcFSPCI final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSPCI> must_create();
private:
ProcFSPCI();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
PCI::enumerate([&array](PCI::Address address, PCI::ID id) {
auto obj = array.add_object();
obj.add("seg", address.seg());
obj.add("bus", address.bus());
obj.add("device", address.device());
obj.add("function", address.function());
obj.add("vendor_id", id.vendor_id);
obj.add("device_id", id.device_id);
obj.add("revision_id", PCI::get_revision_id(address));
obj.add("subclass", PCI::get_subclass(address));
obj.add("class", PCI::get_class(address));
obj.add("subsystem_id", PCI::get_subsystem_id(address));
obj.add("subsystem_vendor_id", PCI::get_subsystem_vendor_id(address));
});
array.finish();
return true;
}
};
class ProcFSDevices final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSDevices> must_create();
private:
ProcFSDevices();
virtual bool output(KBufferBuilder& builder) override
{
JsonArraySerializer array { builder };
Device::for_each([&array](auto& device) {
auto obj = array.add_object();
obj.add("major", device.major());
obj.add("minor", device.minor());
obj.add("class_name", device.class_name());
if (device.is_block_device())
obj.add("type", "block");
else if (device.is_character_device())
obj.add("type", "character");
else
VERIFY_NOT_REACHED();
});
array.finish();
return true;
}
};
class ProcFSUptime final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSUptime> must_create();
private:
ProcFSUptime();
virtual bool output(KBufferBuilder& builder) override
{
builder.appendff("{}\n", TimeManagement::the().uptime_ms() / 1000);
return true;
}
};
class ProcFSCommandLine final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSCommandLine> must_create();
private:
ProcFSCommandLine();
virtual bool output(KBufferBuilder& builder) override
{
builder.append(kernel_command_line().string());
builder.append('\n');
return true;
}
};
class ProcFSModules final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSModules> must_create();
private:
ProcFSModules();
virtual bool output(KBufferBuilder& builder) override
{
extern HashMap<String, OwnPtr<Module>>* g_modules;
JsonArraySerializer array { builder };
for (auto& it : *g_modules) {
auto obj = array.add_object();
obj.add("name", it.value->name);
obj.add("module_init", it.value->module_init);
obj.add("module_fini", it.value->module_fini);
u32 size = 0;
for (auto& section : it.value->sections) {
size += section.capacity();
}
obj.add("size", size);
}
array.finish();
return true;
}
};
class ProcFSProfile final : public ProcFSGlobalInformation {
public:
static NonnullRefPtr<ProcFSProfile> must_create();
private:
ProcFSProfile();
virtual bool output(KBufferBuilder& builder) override
{
extern PerformanceEventBuffer* g_global_perf_events;
if (!g_global_perf_events)
return false;
return g_global_perf_events->to_json(builder);
}
};
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSSelfProcessDirectory> ProcFSSelfProcessDirectory::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSSelfProcessDirectory()).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSDiskUsage> ProcFSDiskUsage::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSDiskUsage).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSMemoryStatus> ProcFSMemoryStatus::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSMemoryStatus).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSOverallProcesses> ProcFSOverallProcesses::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSOverallProcesses).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSCPUInformation> ProcFSCPUInformation::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSCPUInformation).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSDmesg> ProcFSDmesg::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSDmesg).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSInterrupts> ProcFSInterrupts::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSInterrupts).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSKeymap> ProcFSKeymap::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSKeymap).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSPCI> ProcFSPCI::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSPCI).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSDevices> ProcFSDevices::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSDevices).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSUptime> ProcFSUptime::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSUptime).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSCommandLine> ProcFSCommandLine::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSCommandLine).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSModules> ProcFSModules::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSModules).release_nonnull();
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSProfile> ProcFSProfile::must_create()
{
return adopt_ref_if_nonnull(new (nothrow) ProcFSProfile).release_nonnull();
}
UNMAP_AFTER_INIT ProcFSSelfProcessDirectory::ProcFSSelfProcessDirectory()
: ProcFSExposedLink("self"sv)
{
}
UNMAP_AFTER_INIT ProcFSDiskUsage::ProcFSDiskUsage()
: ProcFSGlobalInformation("df"sv)
{
}
UNMAP_AFTER_INIT ProcFSMemoryStatus::ProcFSMemoryStatus()
: ProcFSGlobalInformation("memstat"sv)
{
}
UNMAP_AFTER_INIT ProcFSOverallProcesses::ProcFSOverallProcesses()
: ProcFSGlobalInformation("all"sv)
{
}
UNMAP_AFTER_INIT ProcFSCPUInformation::ProcFSCPUInformation()
: ProcFSGlobalInformation("cpuinfo"sv)
{
}
UNMAP_AFTER_INIT ProcFSDmesg::ProcFSDmesg()
: ProcFSGlobalInformation("dmesg"sv)
{
}
UNMAP_AFTER_INIT ProcFSInterrupts::ProcFSInterrupts()
: ProcFSGlobalInformation("interrupts"sv)
{
}
UNMAP_AFTER_INIT ProcFSKeymap::ProcFSKeymap()
: ProcFSGlobalInformation("keymap"sv)
{
}
UNMAP_AFTER_INIT ProcFSPCI::ProcFSPCI()
: ProcFSGlobalInformation("pci"sv)
{
}
UNMAP_AFTER_INIT ProcFSDevices::ProcFSDevices()
: ProcFSGlobalInformation("devices"sv)
{
}
UNMAP_AFTER_INIT ProcFSUptime::ProcFSUptime()
: ProcFSGlobalInformation("uptime"sv)
{
}
UNMAP_AFTER_INIT ProcFSCommandLine::ProcFSCommandLine()
: ProcFSGlobalInformation("cmdline"sv)
{
}
UNMAP_AFTER_INIT ProcFSModules::ProcFSModules()
: ProcFSGlobalInformation("modules"sv)
{
}
UNMAP_AFTER_INIT ProcFSProfile::ProcFSProfile()
: ProcFSGlobalInformation("profile"sv)
{
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSSystemDirectory> ProcFSSystemDirectory::must_create(const ProcFSRootDirectory& parent_directory)
{
auto directory = adopt_ref(*new (nothrow) ProcFSSystemDirectory(parent_directory));
directory->m_components.append(ProcFSDumpKmallocStacks::must_create(directory));
directory->m_components.append(ProcFSUBSanDeadly::must_create(directory));
directory->m_components.append(ProcFSCapsLockRemap::must_create(directory));
return directory;
}
UNMAP_AFTER_INIT ProcFSSystemDirectory::ProcFSSystemDirectory(const ProcFSRootDirectory& parent_directory)
: ProcFSExposedDirectory("sys"sv, parent_directory)
{
}
UNMAP_AFTER_INIT NonnullRefPtr<ProcFSRootDirectory> ProcFSRootDirectory::must_create()
{
auto directory = adopt_ref(*new (nothrow) ProcFSRootDirectory);
directory->m_components.append(ProcFSSelfProcessDirectory::must_create());
directory->m_components.append(ProcFSDiskUsage::must_create());
directory->m_components.append(ProcFSMemoryStatus::must_create());
directory->m_components.append(ProcFSOverallProcesses::must_create());
directory->m_components.append(ProcFSCPUInformation::must_create());
directory->m_components.append(ProcFSDmesg::must_create());
directory->m_components.append(ProcFSInterrupts::must_create());
directory->m_components.append(ProcFSKeymap::must_create());
directory->m_components.append(ProcFSPCI::must_create());
directory->m_components.append(ProcFSDevices::must_create());
directory->m_components.append(ProcFSUptime::must_create());
directory->m_components.append(ProcFSCommandLine::must_create());
directory->m_components.append(ProcFSModules::must_create());
directory->m_components.append(ProcFSProfile::must_create());
directory->m_components.append(ProcFSNetworkDirectory::must_create(*directory));
directory->m_components.append(ProcFSSystemDirectory::must_create(*directory));
return directory;
}
KResult ProcFSRootDirectory::traverse_as_directory(unsigned fsid, Function<bool(FileSystem::DirectoryEntryView const&)> callback) const
{
2021-07-17 23:13:34 +00:00
MutexLocker locker(ProcFSComponentRegistry::the().get_lock());
callback({ ".", { fsid, component_index() }, 0 });
callback({ "..", { fsid, 0 }, 0 });
for (auto& component : m_components) {
InodeIdentifier identifier = { fsid, component.component_index() };
callback({ component.name(), identifier, 0 });
}
for (auto& component : m_process_directories) {
InodeIdentifier identifier = { fsid, component.component_index() };
callback({ component.name(), identifier, 0 });
}
return KSuccess;
}
RefPtr<ProcFSExposedComponent> ProcFSRootDirectory::lookup(StringView name)
{
if (auto candidate = ProcFSExposedDirectory::lookup(name); !candidate.is_null())
return candidate;
for (auto& component : m_process_directories) {
if (component.name() == name) {
return component;
}
}
return {};
}
UNMAP_AFTER_INIT ProcFSRootDirectory::ProcFSRootDirectory()
: ProcFSExposedDirectory("."sv)
{
}
UNMAP_AFTER_INIT ProcFSRootDirectory::~ProcFSRootDirectory()
{
}
RefPtr<ProcFSProcessDirectory> ProcFSRootDirectory::process_directory_for(Process& process)
{
RefPtr<Process> checked_process = process;
for (auto& directory : m_process_directories) {
if (directory.associated_process().ptr() == checked_process.ptr())
return directory;
}
return {};
}
}