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-rw-r--r--Userland/Services/SystemServer/main.cpp281
1 files changed, 159 insertions, 122 deletions
diff --git a/Userland/Services/SystemServer/main.cpp b/Userland/Services/SystemServer/main.cpp
index 5fb051e55e..2070717350 100644
--- a/Userland/Services/SystemServer/main.cpp
+++ b/Userland/Services/SystemServer/main.cpp
@@ -9,6 +9,7 @@
#include <AK/Assertions.h>
#include <AK/ByteBuffer.h>
#include <AK/Debug.h>
+#include <Kernel/API/DeviceEvent.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/ConfigFile.h>
#include <LibCore/DirIterator.h>
@@ -132,45 +133,13 @@ static void create_devtmpfs_block_device(String name, mode_t mode, unsigned majo
VERIFY_NOT_REACHED();
}
-static void populate_devtmpfs_block_devices()
-{
- Core::DirIterator di("/sys/dev/block/", Core::DirIterator::SkipParentAndBaseDir);
- if (di.has_error()) {
- warnln("Failed to open /sys/dev/block - {}", di.error());
- VERIFY_NOT_REACHED();
- }
- while (di.has_next()) {
- auto entry_name = di.next_path().split(':');
- VERIFY(entry_name.size() == 2);
- auto major_number = entry_name[0].to_uint<unsigned>().value();
- auto minor_number = entry_name[1].to_uint<unsigned>().value();
- switch (major_number) {
- case 29: {
- create_devtmpfs_block_device(String::formatted("/dev/fb{}", minor_number), 0666, 29, minor_number);
- break;
- }
- case 30: {
- create_devtmpfs_block_device(String::formatted("/dev/kcov{}", minor_number), 0666, 30, minor_number);
- break;
- }
- case 3: {
- create_devtmpfs_block_device(String::formatted("/dev/hd{}", offset_character_with_number('a', minor_number)), 0600, 3, minor_number);
- break;
- }
- default:
- warnln("Unknown block device {}:{}", major_number, minor_number);
- break;
- }
- }
-}
-
static void create_devtmpfs_char_device(String name, mode_t mode, unsigned major, unsigned minor)
{
if (auto rc = mknod(name.characters(), mode | S_IFCHR, makedev(major, minor)); rc < 0)
VERIFY_NOT_REACHED();
}
-static void populate_devtmpfs_char_devices()
+static void populate_devtmpfs_char_devices_based_on_sysfs()
{
Core::DirIterator di("/sys/dev/char/", Core::DirIterator::SkipParentAndBaseDir);
if (di.has_error()) {
@@ -183,10 +152,10 @@ static void populate_devtmpfs_char_devices()
auto major_number = entry_name[0].to_uint<unsigned>().value();
auto minor_number = entry_name[1].to_uint<unsigned>().value();
switch (major_number) {
- case 42: {
+ case 2: {
switch (minor_number) {
- case 42: {
- create_devtmpfs_char_device("/dev/audio", 0220, 42, 42);
+ case 10: {
+ create_devtmpfs_char_device("/dev/devctl", 0660, 2, 10);
break;
}
default:
@@ -194,7 +163,48 @@ static void populate_devtmpfs_char_devices()
}
break;
}
+
+ default:
+ break;
+ }
+ }
+}
+
+static void populate_devtmpfs_devices_based_on_devctl()
+{
+ auto f = Core::File::construct("/dev/devctl");
+ if (!f->open(Core::OpenMode::ReadOnly)) {
+ warnln("Failed to open /dev/devctl - {}", f->error_string());
+ VERIFY_NOT_REACHED();
+ }
+
+ DeviceEvent event;
+ while (f->read((u8*)&event, sizeof(DeviceEvent)) > 0) {
+ if (event.state != DeviceEvent::Inserted)
+ continue;
+ auto major_number = event.major_number;
+ auto minor_number = event.minor_number;
+ bool is_block_device = (event.is_block_device == 1);
+ switch (major_number) {
+ case 42: {
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 42: {
+ create_devtmpfs_char_device("/dev/audio", 0220, 42, 42);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ }
+ }
+ break;
+ }
case 29: {
+ if (is_block_device) {
+ create_devtmpfs_block_device(String::formatted("/dev/fb{}", minor_number), 0666, 29, minor_number);
+ break;
+ }
+
switch (minor_number) {
case 0: {
create_devtmpfs_char_device("/dev/full", 0660, 29, 0);
@@ -206,115 +216,142 @@ static void populate_devtmpfs_char_devices()
break;
}
case 229: {
- create_devtmpfs_char_device(String::formatted("/dev/hvc0p{}", minor_number), 0666, major_number, minor_number);
+ if (!is_block_device) {
+ create_devtmpfs_char_device(String::formatted("/dev/hvc0p{}", minor_number), 0666, major_number, minor_number);
+ }
break;
}
case 10: {
- switch (minor_number) {
- case 0: {
- create_devtmpfs_char_device("/dev/mouse0", 0660, 10, 0);
- break;
- }
- case 183: {
- create_devtmpfs_char_device("/dev/hwrng", 0660, 10, 183);
- break;
- }
- default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 0: {
+ create_devtmpfs_char_device("/dev/mouse0", 0660, 10, 0);
+ break;
+ }
+ case 183: {
+ create_devtmpfs_char_device("/dev/hwrng", 0660, 10, 183);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ }
}
break;
}
case 85: {
- switch (minor_number) {
- case 0: {
- create_devtmpfs_char_device("/dev/keyboard0", 0660, 85, 0);
- break;
- }
- default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 0: {
+ create_devtmpfs_char_device("/dev/keyboard0", 0660, 85, 0);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ }
}
break;
}
case 1: {
- switch (minor_number) {
- case 5: {
- create_devtmpfs_char_device("/dev/zero", 0666, 1, 5);
- break;
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 5: {
+ create_devtmpfs_char_device("/dev/zero", 0666, 1, 5);
+ break;
+ }
+ case 1: {
+ create_devtmpfs_char_device("/dev/mem", 0660, 1, 1);
+ break;
+ }
+ case 3: {
+ create_devtmpfs_char_device("/dev/null", 0666, 1, 3);
+ break;
+ }
+ case 8: {
+ create_devtmpfs_char_device("/dev/random", 0666, 1, 8);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ break;
+ }
}
- case 1: {
- create_devtmpfs_char_device("/dev/mem", 0660, 1, 1);
- break;
- }
- case 3: {
- create_devtmpfs_char_device("/dev/null", 0666, 1, 3);
- break;
- }
- case 8: {
- create_devtmpfs_char_device("/dev/random", 0666, 1, 8);
- break;
+ break;
+ }
+ case 30: {
+ if (is_block_device) {
+ create_devtmpfs_block_device(String::formatted("/dev/kcov{}", minor_number), 0666, 30, minor_number);
}
- default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
- break;
+ break;
+ }
+ case 3: {
+ if (is_block_device) {
+ create_devtmpfs_block_device(String::formatted("/dev/hd{}", offset_character_with_number('a', minor_number)), 0600, 3, minor_number);
}
break;
}
case 5: {
- switch (minor_number) {
- case 1: {
- create_devtmpfs_char_device("/dev/console", 0666, 5, 1);
- break;
- }
- case 2: {
- create_devtmpfs_char_device("/dev/ptmx", 0666, 5, 2);
- break;
- }
- default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 1: {
+ create_devtmpfs_char_device("/dev/console", 0666, 5, 1);
+ break;
+ }
+ case 2: {
+ create_devtmpfs_char_device("/dev/ptmx", 0666, 5, 2);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ }
}
break;
}
case 4: {
- switch (minor_number) {
- case 0: {
- create_devtmpfs_char_device("/dev/tty0", 0620, 4, 0);
- break;
- }
- case 1: {
- create_devtmpfs_char_device("/dev/tty1", 0620, 4, 1);
- break;
- }
- case 2: {
- create_devtmpfs_char_device("/dev/tty2", 0620, 4, 2);
- break;
- }
- case 3: {
- create_devtmpfs_char_device("/dev/tty3", 0620, 4, 3);
- break;
- }
- case 64: {
- create_devtmpfs_char_device("/dev/ttyS0", 0620, 4, 64);
- break;
- }
- case 65: {
- create_devtmpfs_char_device("/dev/ttyS1", 0620, 4, 65);
- break;
- }
- case 66: {
- create_devtmpfs_char_device("/dev/ttyS2", 0620, 4, 66);
- break;
- }
- case 67: {
- create_devtmpfs_char_device("/dev/ttyS3", 0666, 4, 67);
- break;
- }
- default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
+ if (!is_block_device) {
+ switch (minor_number) {
+ case 0: {
+ create_devtmpfs_char_device("/dev/tty0", 0620, 4, 0);
+ break;
+ }
+ case 1: {
+ create_devtmpfs_char_device("/dev/tty1", 0620, 4, 1);
+ break;
+ }
+ case 2: {
+ create_devtmpfs_char_device("/dev/tty2", 0620, 4, 2);
+ break;
+ }
+ case 3: {
+ create_devtmpfs_char_device("/dev/tty3", 0620, 4, 3);
+ break;
+ }
+ case 64: {
+ create_devtmpfs_char_device("/dev/ttyS0", 0620, 4, 64);
+ break;
+ }
+ case 65: {
+ create_devtmpfs_char_device("/dev/ttyS1", 0620, 4, 65);
+ break;
+ }
+ case 66: {
+ create_devtmpfs_char_device("/dev/ttyS2", 0620, 4, 66);
+ break;
+ }
+ case 67: {
+ create_devtmpfs_char_device("/dev/ttyS3", 0666, 4, 67);
+ break;
+ }
+ default:
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ }
}
break;
}
default:
- warnln("Unknown character device {}:{}", major_number, minor_number);
+ if (!is_block_device)
+ warnln("Unknown character device {}:{}", major_number, minor_number);
+ else
+ warnln("Unknown block device {}:{}", major_number, minor_number);
break;
}
}
@@ -324,8 +361,8 @@ static void populate_devtmpfs()
{
mode_t old_mask = umask(0);
printf("Changing umask %#o\n", old_mask);
- populate_devtmpfs_char_devices();
- populate_devtmpfs_block_devices();
+ populate_devtmpfs_char_devices_based_on_sysfs();
+ populate_devtmpfs_devices_based_on_devctl();
umask(old_mask);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 11:27:43 +0000