forked from SerenityOS/serenity
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ProcessProcFSTraits.cpp
73 lines (60 loc) · 3.86 KB
/
ProcessProcFSTraits.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
/*
* Copyright (c) 2021, sin-ack <[email protected]>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/FileSystem/ProcFS/Inode.h>
#include <Kernel/Process.h>
#include <Kernel/ProcessExposed.h>
namespace Kernel {
UserID Process::ProcessProcFSTraits::owner_user() const
{
auto process = m_process.strong_ref();
if (!process)
return 0;
auto credentials = process->credentials();
return credentials->uid();
}
GroupID Process::ProcessProcFSTraits::owner_group() const
{
auto process = m_process.strong_ref();
if (!process)
return 0;
auto credentials = process->credentials();
return credentials->gid();
}
InodeIndex Process::ProcessProcFSTraits::component_index() const
{
auto process = m_process.strong_ref();
if (!process)
return {};
return SegmentedProcFSIndex::build_segmented_index_for_pid_directory(process->pid());
}
ErrorOr<NonnullLockRefPtr<ProcFSInode>> Process::ProcessProcFSTraits::to_inode(ProcFS const& procfs_instance) const
{
auto process = m_process.strong_ref();
if (!process)
return ESRCH;
return TRY(ProcFSInode::try_create_as_process_directory_inode(procfs_instance, process->pid()));
}
ErrorOr<void> Process::ProcessProcFSTraits::traverse_as_directory(FileSystemID fsid, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)> callback) const
{
auto process = m_process.strong_ref();
if (!process)
return ESRCH;
TRY(callback({ "."sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_pid_directory(process->pid()) }, DT_DIR }));
TRY(callback({ ".."sv, { fsid, ProcFSComponentRegistry::the().root_directory().component_index() }, DT_DIR }));
TRY(callback({ "fd"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::OpenFileDescriptions) }, DT_DIR }));
TRY(callback({ "stacks"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::Stacks) }, DT_DIR }));
TRY(callback({ "children"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_sub_directory(process->pid(), SegmentedProcFSIndex::ProcessSubDirectory::Children) }, DT_DIR }));
TRY(callback({ "unveil"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Unveil) }, DT_REG }));
TRY(callback({ "pledge"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::Pledge) }, DT_REG }));
TRY(callback({ "fds"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::OpenFileDescriptions) }, DT_DIR }));
TRY(callback({ "exe"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::BinaryLink) }, DT_LNK }));
TRY(callback({ "cwd"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::CurrentWorkDirectoryLink) }, DT_LNK }));
TRY(callback({ "perf_events"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::PerformanceEvents) }, DT_REG }));
TRY(callback({ "vm"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::VirtualMemoryStats) }, DT_REG }));
TRY(callback({ "cmdline"sv, { fsid, SegmentedProcFSIndex::build_segmented_index_for_main_property_in_pid_directory(process->pid(), SegmentedProcFSIndex::MainProcessProperty::CommandLine) }, DT_REG }));
return {};
}
}