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Orbital (#16)

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* Port previous ethernet scheme

* Add ipd

* Fix initfs rebuilds, use QEMU user networking addresses in ipd

* Add tcp/udp, netutils, dns, and network config

* Add fsync to network driver

* Add dns, router, subnet by default

* Fix e1000 driver. Make ethernet and IP non-blocking to avoid deadlocks

* Add orbital server, WIP

* Add futex

* Add orbutils and orbital

* Update libstd, orbutils, and orbital
Move ANSI key encoding to vesad

* Add orbital assets

* Update orbital

* Update to add login manager

* Add blocking primitives, block for most things except waitpid, update orbital

* Wait in waitpid and IRQ, improvements for other waits

* Fevent in root scheme

* WIP: Switch to using fevent

* Reorganize

* Event based e1000d driver

* Superuser-only access to some network schemes, display, and disk

* Superuser root and irq schemes

* Fix orbital
This commit is contained in:
Jeremy Soller 2016-10-13 17:21:42 -06:00 committed by GitHub
parent 372d44f88c
commit 224c43f761
92 changed files with 3415 additions and 473 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
.gitmodules vendored
View file

@ -28,3 +28,15 @@
[submodule "programs/userutils"]
path = programs/userutils
url = https://github.com/redox-os/userutils.git
[submodule "programs/netutils"]
path = programs/netutils
url = https://github.com/redox-os/netutils.git
[submodule "schemes/orbital"]
path = schemes/orbital
url = https://github.com/redox-os/orbital.git
[submodule "programs/orbutils"]
path = programs/orbutils
url = https://github.com/redox-os/orbutils.git
[submodule "filesystem/ui"]
path = filesystem/ui
url = https://github.com/redox-os/orbdata.git

82
Makefile
View file

@ -17,7 +17,7 @@ CARGO=RUSTC="$(RUSTC)" cargo
CARGOFLAGS=--target $(TARGET).json -- -C opt-level=s --cfg redox
# Default targets
.PHONY: all clean qemu bochs FORCE
.PHONY: all clean qemu bochs drivers schemes coreutils extrautils netutils userutils wireshark FORCE
all: $(KBUILD)/harddrive.bin
@ -25,6 +25,7 @@ clean:
cargo clean
cargo clean --manifest-path libstd/Cargo.toml
cargo clean --manifest-path drivers/ahcid/Cargo.toml
cargo clean --manifest-path drivers/e1000d/Cargo.toml
cargo clean --manifest-path drivers/ps2d/Cargo.toml
cargo clean --manifest-path drivers/pcid/Cargo.toml
cargo clean --manifest-path drivers/vesad/Cargo.toml
@ -32,10 +33,17 @@ clean:
cargo clean --manifest-path programs/ion/Cargo.toml
cargo clean --manifest-path programs/coreutils/Cargo.toml
cargo clean --manifest-path programs/extrautils/Cargo.toml
cargo clean --manifest-path programs/netutils/Cargo.toml
cargo clean --manifest-path programs/orbutils/Cargo.toml
cargo clean --manifest-path programs/userutils/Cargo.toml
cargo clean --manifest-path programs/smith/Cargo.toml
cargo clean --manifest-path schemes/ethernetd/Cargo.toml
cargo clean --manifest-path schemes/example/Cargo.toml
cargo clean --manifest-path schemes/ipd/Cargo.toml
cargo clean --manifest-path schemes/orbital/Cargo.toml
cargo clean --manifest-path schemes/redoxfs/Cargo.toml
cargo clean --manifest-path schemes/tcpd/Cargo.toml
cargo clean --manifest-path schemes/udpd/Cargo.toml
rm -rf initfs/bin
rm -rf filesystem/bin
rm -rf build
@ -118,7 +126,7 @@ $(KBUILD)/librustc_unicode.rlib: rust/src/librustc_unicode/lib.rs $(KBUILD)/libc
$(KBUILD)/libcollections.rlib: rust/src/libcollections/lib.rs $(KBUILD)/libcore.rlib $(KBUILD)/liballoc.rlib $(KBUILD)/librustc_unicode.rlib
$(KRUSTC) $(KRUSTCFLAGS) -o $@ $<
$(KBUILD)/libkernel.a: kernel/** $(KBUILD)/libcore.rlib $(KBUILD)/liballoc.rlib $(KBUILD)/libcollections.rlib $(BUILD)/initfs.rs FORCE
$(KBUILD)/libkernel.a: kernel/** $(KBUILD)/libcore.rlib $(KBUILD)/liballoc.rlib $(KBUILD)/libcollections.rlib $(BUILD)/initfs.rs
$(KCARGO) rustc $(KCARGOFLAGS) -C opt-level=s -C lto -o $@
$(KBUILD)/kernel: $(KBUILD)/libkernel.a
@ -170,17 +178,12 @@ initfs/bin/%: schemes/%/Cargo.toml schemes/%/src/** $(BUILD)/libstd.rlib
strip $@
rm $@.d
initfs_drivers: \
initfs/bin/ahcid \
initfs/bin/pcid
initfs_schemes: \
initfs/bin/redoxfs
$(BUILD)/initfs.rs: \
initfs/bin/init \
initfs_drivers \
initfs_schemes
initfs/bin/ahcid \
initfs/bin/pcid \
initfs/bin/redoxfs \
initfs/etc/**
echo 'use collections::BTreeMap;' > $@
echo 'pub fn gen() -> BTreeMap<&'"'"'static [u8], (&'"'"'static [u8], bool)> {' >> $@
echo ' let mut files: BTreeMap<&'"'"'static [u8], (&'"'"'static [u8], bool)> = BTreeMap::new();' >> $@
@ -218,6 +221,18 @@ filesystem/bin/%: programs/extrautils/Cargo.toml programs/extrautils/src/bin/%.r
strip $@
rm $@.d
filesystem/bin/%: programs/netutils/Cargo.toml programs/netutils/src/%/**.rs $(BUILD)/libstd.rlib
mkdir -p filesystem/bin
$(CARGO) rustc --manifest-path $< --bin $* $(CARGOFLAGS) -o $@
strip $@
rm $@.d
filesystem/bin/%: programs/orbutils/Cargo.toml programs/orbutils/src/%/**.rs $(BUILD)/libstd.rlib
mkdir -p filesystem/bin
$(CARGO) rustc --manifest-path $< --bin $* $(CARGOFLAGS) -o $@
strip $@
rm $@.d
filesystem/bin/%: programs/userutils/Cargo.toml programs/userutils/src/bin/%.rs $(BUILD)/libstd.rlib
mkdir -p filesystem/bin
$(CARGO) rustc --manifest-path $< --bin $* $(CARGOFLAGS) -o $@
@ -278,6 +293,23 @@ extrautils: \
filesystem/bin/rem \
#filesystem/bin/dmesg filesystem/bin/info filesystem/bin/man filesystem/bin/watch
netutils: \
filesystem/bin/dhcpd \
filesystem/bin/dnsd \
filesystem/bin/irc \
filesystem/bin/nc \
filesystem/bin/wget
orbutils: \
filesystem/bin/calculator \
filesystem/bin/character_map \
filesystem/bin/editor \
filesystem/bin/file_manager \
filesystem/bin/launcher \
filesystem/bin/orblogin \
filesystem/bin/terminal \
filesystem/bin/viewer
userutils: \
filesystem/bin/getty \
filesystem/bin/id \
@ -286,28 +318,35 @@ userutils: \
filesystem/bin/sudo
schemes: \
filesystem/bin/example
filesystem/bin/ethernetd \
filesystem/bin/example \
filesystem/bin/ipd \
filesystem/bin/orbital \
filesystem/bin/tcpd \
filesystem/bin/udpd
$(BUILD)/filesystem.bin: \
drivers \
coreutils \
extrautils \
netutils \
orbutils \
userutils \
schemes \
filesystem/bin/ion \
filesystem/bin/smith
rm -rf $@ $(BUILD)/filesystem/
echo exit | cargo run --manifest-path schemes/redoxfs/Cargo.toml --bin redoxfs-utility $@ 8
echo exit | cargo run --manifest-path schemes/redoxfs/Cargo.toml --bin redoxfs-utility $@ 64
mkdir -p $(BUILD)/filesystem/
cargo run --manifest-path schemes/redoxfs/Cargo.toml --bin redoxfs-fuse $@ $(BUILD)/filesystem/ &
sleep 2
-cp -RL filesystem/* $(BUILD)/filesystem/
-chown -R 0:0 $(BUILD)/filesystem/
-chown -R 1000:1000 $(BUILD)/filesystem/home/user/
-chmod 700 $(BUILD)/filesystem/root/
-chmod 700 $(BUILD)/filesystem/home/user/
-chmod +s $(BUILD)/filesystem/bin/su
-chmod +s $(BUILD)/filesystem/bin/sudo
cp -RL filesystem/* $(BUILD)/filesystem/
chown -R 0:0 $(BUILD)/filesystem/
chown -R 1000:1000 $(BUILD)/filesystem/home/user/
chmod 700 $(BUILD)/filesystem/root/
chmod 700 $(BUILD)/filesystem/home/user/
chmod +s $(BUILD)/filesystem/bin/su
chmod +s $(BUILD)/filesystem/bin/sudo
sync
-fusermount -u $(BUILD)/filesystem/
rm -rf $(BUILD)/filesystem/
@ -321,3 +360,6 @@ unmount: FORCE
sync
-fusermount -u $(KBUILD)/harddrive/
rm -rf $(KBUILD)/harddrive/
wireshark: FORCE
wireshark $(KBUILD)/network.pcap

2
arch/arm/Cargo.toml
View file

@ -4,5 +4,5 @@ version = "0.1.0"
[dependencies]
bitflags = "*"
hole_list_allocator = { path = "../../alloc/hole_list_allocator"}
hole_list_allocator = { path = "../../crates/hole_list_allocator"}
spin = "*"

6
arch/x86_64/Cargo.toml
View file

@ -4,10 +4,10 @@ version = "0.1.0"
[dependencies]
bitflags = "*"
hole_list_allocator = { path = "../../alloc/hole_list_allocator" }
io = { path = "../../drivers/io" }
hole_list_allocator = { path = "../../crates/hole_list_allocator/" }
io = { path = "../../crates/io/" }
spin = "*"
[dependencies.x86]
version = "*"
version = "0.7"
default-features = false

40
arch/x86_64/src/interrupt/irq.rs
View file

@ -1,11 +1,11 @@
use spin::Mutex;
use x86::io;
use device::serial::{COM1, COM2};
use time;
pub static ACKS: Mutex<[usize; 16]> = Mutex::new([0; 16]);
pub static COUNTS: Mutex<[usize; 16]> = Mutex::new([0; 16]);
extern {
fn irq_trigger(irq: u8);
}
#[inline(always)]
unsafe fn master_ack() {
@ -27,7 +27,7 @@ pub unsafe fn acknowledge(irq: usize) {
}
interrupt!(pit, {
COUNTS.lock()[0] += 1;
irq_trigger(0);
{
const PIT_RATE: u64 = 46500044;
@ -42,76 +42,74 @@ interrupt!(pit, {
});
interrupt!(keyboard, {
COUNTS.lock()[1] += 1;
irq_trigger(1);
});
interrupt!(cascade, {
COUNTS.lock()[2] += 1;
irq_trigger(2);
master_ack();
});
interrupt!(com2, {
COUNTS.lock()[3] += 1;
irq_trigger(3);
COM2.lock().on_receive();
master_ack();
});
interrupt!(com1, {
COUNTS.lock()[4] += 1;
irq_trigger(4);
COM1.lock().on_receive();
master_ack();
});
interrupt!(lpt2, {
COUNTS.lock()[5] += 1;
irq_trigger(5);
master_ack();
});
interrupt!(floppy, {
COUNTS.lock()[6] += 1;
irq_trigger(6);
master_ack();
});
interrupt!(lpt1, {
COUNTS.lock()[7] += 1;
irq_trigger(7);
master_ack();
});
interrupt!(rtc, {
COUNTS.lock()[8] += 1;
irq_trigger(8);
slave_ack();
});
interrupt!(pci1, {
COUNTS.lock()[9] += 1;
irq_trigger(9);
slave_ack();
});
interrupt!(pci2, {
COUNTS.lock()[10] += 1;
slave_ack();
irq_trigger(10);
});
interrupt!(pci3, {
COUNTS.lock()[11] += 1;
slave_ack();
irq_trigger(11);
});
interrupt!(mouse, {
COUNTS.lock()[12] += 1;
irq_trigger(12);
});
interrupt!(fpu, {
COUNTS.lock()[13] += 1;
irq_trigger(13);
slave_ack();
});
interrupt!(ata1, {
COUNTS.lock()[14] += 1;
irq_trigger(14);
slave_ack();
});
interrupt!(ata2, {
COUNTS.lock()[15] += 1;
irq_trigger(15);
slave_ack();
});

2
arch/x86_64/src/start.rs
View file

@ -148,7 +148,7 @@ pub unsafe extern fn kstart_ap(cpu_id: usize, _page_table: usize, stack_start: u
let kernel_table = KERNEL_TABLE.load(Ordering::SeqCst);
// Initialize paging
let (active_table, tcb_offset) = paging::init_ap(cpu_id, stack_start, stack_end, kernel_table);
let (_active_table, tcb_offset) = paging::init_ap(cpu_id, stack_start, stack_end, kernel_table);
// Set up GDT for AP
gdt::init(tcb_offset, stack_end);

4
bootloader/x86_64/vesa.asm
View file

@ -115,8 +115,8 @@ vesa:
.minx dw 640
.miny dw 480
.required:
.requiredx dw 0 ; 1024 ;USE THESE WITH CAUTION
.requiredy dw 0 ; 768
.requiredx dw 1024 ;USE THESE WITH CAUTION
.requiredy dw 768
.requiredmode dw 0
.modeok db ": Is this OK?(y/n)",10,13,0

36
cakefile.rs
View file

@ -1,36 +0,0 @@
#[macro_use]
extern crate cake;
const QEMU: &'static str = "qemu-system-x86_64";
const LS_FLAGS: &'static [&'static str] = &["-a", "/"];
build! {
// ---- COMMANDS ----
start(harddrive) => {},
list(kernel_list) => {},
run(bochs) => {},
clean() => cmd!("rm", "-rf", "build/*"),
// ---- RECIPES ----
bochs(harddrive) => cmd!("bochs", "-f", "bochs.x86_64"),
qemu(harddrive) => cmd!(QEMU,
"-serial", "mon:stdio",
"-drive", "file=build/harddrive.bin,format=raw,index=0,media=disk"),
libkernel() => cmd!("cargo", "rustc", "--", "-C", "lto"),
kernel(libkernel) => cmd!("ld",
"-m", "elf_x86_64",
"--gc-sections",
"-z", "max-page-size=0x1000",
"-T bootloader/x86/kernel.ld",
"-o", "build/kernel.in", "build/libkernel.a"),
kernel_list(kernel) => cmd!("objdump",
"-C", "-M", "intel",
"-D", "build/kernel.bin",
">", "build/kernel.list"),
harddrive(kernel) => cmd!("nasm",
"-f", "bin",
"-o", "build/harddrive.bin",
"-D", "ARCH_x86_64", "-ibootloader/x86/", "-ibuild/",
"bootloader/x86/harddrive.asm"),
}

0
drivers/dma/Cargo.toml → crates/dma/Cargo.toml
View file

0
drivers/dma/src/lib.rs → crates/dma/src/lib.rs
View file

6
crates/event/Cargo.toml Normal file
View file

@ -0,0 +1,6 @@
[package]
name = "event"
version = "0.1.0"
[dependencies.syscall]
path = "../../syscall/"

55
crates/event/src/lib.rs Normal file
View file

@ -0,0 +1,55 @@
#![feature(question_mark)]
extern crate syscall;
use std::collections::BTreeMap;
use std::fs::File;
use std::io::{Read, Error, Result};
use std::os::unix::io::RawFd;
pub struct EventQueue<R> {
/// The file to read events from
file: File,
/// A map of registered file descriptors to their handler callbacks
callbacks: BTreeMap<RawFd, Box<FnMut(usize) -> Result<Option<R>>>>
}
impl<R> EventQueue<R> {
/// Create a new event queue
pub fn new() -> Result<EventQueue<R>> {
Ok(EventQueue {
file: File::open("event:")?,
callbacks: BTreeMap::new()
})
}
/// Add a file to the event queue, calling a callback when an event occurs
///
/// The callback is given a mutable reference to the file and the event data
/// (typically the length of data available for read)
///
/// The callback returns Ok(None) if it wishes to continue the event loop,
/// or Ok(Some(R)) to break the event loop and return the value.
/// Err can be used to allow the callback to return an I/O error, and break the
/// event loop
pub fn add<F: FnMut(usize) -> Result<Option<R>> + 'static>(&mut self, fd: RawFd, callback: F) -> Result<()> {
syscall::fevent(fd, syscall::EVENT_READ).map_err(|x| Error::from_sys(x))?;
self.callbacks.insert(fd, Box::new(callback));
Ok(())
}
/// Process the event queue until a callback returns Some(R)
pub fn run(&mut self) -> Result<R> {
loop {
let mut event = syscall::Event::default();
self.file.read(&mut event)?;
if let Some(callback) = self.callbacks.get_mut(&event.id) {
if let Some(ret) = callback(event.data)? {
return Ok(ret);
}
}
}
}
}

0
alloc/hole_list_allocator/Cargo.toml → crates/hole_list_allocator/Cargo.toml
View file

0
alloc/hole_list_allocator/src/lib.rs → crates/hole_list_allocator/src/lib.rs
View file

0
drivers/io/Cargo.toml → crates/io/Cargo.toml
View file

0
drivers/io/src/io.rs → crates/io/src/io.rs
View file

0
drivers/io/src/lib.rs → crates/io/src/lib.rs
View file

0
drivers/io/src/mmio.rs → crates/io/src/mmio.rs
View file

0
drivers/io/src/pio.rs → crates/io/src/pio.rs
View file

6
crates/resource_scheme/Cargo.toml Normal file
View file

@ -0,0 +1,6 @@
[package]
name = "resource_scheme"
version = "0.1.0"
[dependencies.syscall]
path = "../../syscall/"

9
crates/resource_scheme/src/lib.rs Normal file
View file

@ -0,0 +1,9 @@
#![feature(question_mark)]
extern crate syscall;
pub use resource::Resource;
pub use scheme::ResourceScheme;
mod resource;
mod scheme;

52
crates/resource_scheme/src/resource.rs Normal file
View file

@ -0,0 +1,52 @@
use syscall::data::Stat;
use syscall::error::*;
pub trait Resource {
/// Duplicate the resource
/// Returns `EPERM` if the operation is not supported.
fn dup(&self) -> Result<Box<Self>> {
Err(Error::new(EPERM))
}
/// Return the path of this resource
/// Returns `EPERM` if the operation is not supported.
fn path(&self, _buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EPERM))
}
/// Read data to buffer
/// Returns `EPERM` if the operation is not supported.
fn read(&mut self, _buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EPERM))
}
/// Write to resource
/// Returns `EPERM` if the operation is not supported.
fn write(&mut self, _buf: &[u8]) -> Result<usize> {
Err(Error::new(EPERM))
}
/// Seek to the given offset
/// Returns `ESPIPE` if the operation is not supported.
fn seek(&mut self, _pos: usize, _whence: usize) -> Result<usize> {
Err(Error::new(ESPIPE))
}
/// Get informations about the resource, such as mode and size
/// Returns `EPERM` if the operation is not supported.
fn stat(&self, _stat: &mut Stat) -> Result<usize> {
Err(Error::new(EPERM))
}
/// Sync all buffers
/// Returns `EPERM` if the operation is not supported.
fn sync(&mut self) -> Result<usize> {
Err(Error::new(EPERM))
}
/// Truncate to the given length
/// Returns `EPERM` if the operation is not supported.
fn truncate(&mut self, _len: usize) -> Result<usize> {
Err(Error::new(EPERM))
}
}

109
crates/resource_scheme/src/scheme.rs Normal file
View file

@ -0,0 +1,109 @@
use std::slice;
use syscall::data::{Packet, Stat};
use syscall::error::*;
use syscall::number::*;
use super::Resource;
pub trait ResourceScheme<T: Resource> {
fn open_resource(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<Box<T>>;
fn handle(&self, packet: &mut Packet) {
packet.a = Error::mux(match packet.a {
SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
SYS_MKDIR => self.mkdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_DUP => self.dup(packet.b),
SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
SYS_FEVENT => self.fevent(packet.b, packet.c),
SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_FSTAT => self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }),
SYS_FSYNC => self.fsync(packet.b),
SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
SYS_CLOSE => self.close(packet.b),
_ => Err(Error::new(ENOSYS))
});
}
/* Scheme operations */
fn open(&self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
let resource = self.open_resource(path, flags, uid, gid)?;
let resource_ptr = Box::into_raw(resource);
Ok(resource_ptr as usize)
}
#[allow(unused_variables)]
fn mkdir(&self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn rmdir(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn unlink(&self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
/* Resource operations */
fn dup(&self, old_id: usize) -> Result<usize> {
let old = unsafe { &*(old_id as *const T) };
let resource = old.dup()?;
let resource_ptr = Box::into_raw(resource);
Ok(resource_ptr as usize)
}
fn read(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
let mut resource = unsafe { &mut *(id as *mut T) };
resource.read(buf)
}
fn write(&self, id: usize, buf: &[u8]) -> Result<usize> {
let mut resource = unsafe { &mut *(id as *mut T) };
resource.write(buf)
}
fn seek(&self, id: usize, pos: usize, whence: usize) -> Result<usize> {
let mut resource = unsafe { &mut *(id as *mut T) };
resource.seek(pos, whence)
}
#[allow(unused_variables)]
fn fevent(&self, id: usize, flags: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
fn fpath(&self, id: usize, buf: &mut [u8]) -> Result<usize> {
let resource = unsafe { &*(id as *const T) };
resource.path(buf)
}
fn fstat(&self, id: usize, stat: &mut Stat) -> Result<usize> {
let resource = unsafe { &*(id as *const T) };
resource.stat(stat)
}
fn fsync(&self, id: usize) -> Result<usize> {
let mut resource = unsafe { &mut *(id as *mut T) };
resource.sync()
}
fn ftruncate(&self, id: usize, len: usize) -> Result<usize> {
let mut resource = unsafe { &mut *(id as *mut T) };
resource.truncate(len)
}
fn close(&self, id: usize) -> Result<usize> {
let resource = unsafe { Box::from_raw(id as *mut T) };
drop(resource);
Ok(0)
}
}

4
drivers/ahcid/Cargo.toml
View file

@ -4,7 +4,7 @@ version = "0.1.0"
[dependencies]
bitflags = "*"
dma = { path = "../dma/" }
io = { path = "../io/" }
dma = { path = "../../crates/dma/" }
io = { path = "../../crates/io/" }
spin = "*"
syscall = { path = "../../syscall/" }

26
drivers/ahcid/src/ahci/hba.rs
View file

@ -25,6 +25,10 @@ const HBA_SIG_ATAPI: u32 = 0xEB140101;
const HBA_SIG_PM: u32 = 0x96690101;
const HBA_SIG_SEMB: u32 = 0xC33C0101;
fn pause() {
unsafe { asm!("pause" : : : "memory" : "intel", "volatile"); }
}
#[derive(Debug)]
pub enum HbaPortType {
None,
@ -119,7 +123,9 @@ impl HbaPort {
cmdfis.counth.write(0);
}
while self.tfd.readf((ATA_DEV_BUSY | ATA_DEV_DRQ) as u32) {}
while self.tfd.readf((ATA_DEV_BUSY | ATA_DEV_DRQ) as u32) {
pause();
}
self.ci.writef(1 << slot, true);
@ -127,6 +133,7 @@ impl HbaPort {
if self.is.readf(HBA_PORT_IS_TFES) {
return None;
}
pause();
}
if self.is.readf(HBA_PORT_IS_TFES) {
@ -194,7 +201,9 @@ impl HbaPort {
}
pub fn start(&mut self) {
while self.cmd.readf(HBA_PORT_CMD_CR) {}
while self.cmd.readf(HBA_PORT_CMD_CR) {
pause();
}
self.cmd.writef(HBA_PORT_CMD_FRE, true);
self.cmd.writef(HBA_PORT_CMD_ST, true);
@ -203,7 +212,9 @@ impl HbaPort {
pub fn stop(&mut self) {
self.cmd.writef(HBA_PORT_CMD_ST, false);
while self.cmd.readf(HBA_PORT_CMD_FR | HBA_PORT_CMD_CR) {}
while self.cmd.readf(HBA_PORT_CMD_FR | HBA_PORT_CMD_CR) {
pause();
}
self.cmd.writef(HBA_PORT_CMD_FRE, false);
}
@ -267,7 +278,9 @@ impl HbaPort {
cmdfis.counth.write((sectors >> 8) as u8);
}
while self.tfd.readf((ATA_DEV_BUSY | ATA_DEV_DRQ) as u32) {}
while self.tfd.readf((ATA_DEV_BUSY | ATA_DEV_DRQ) as u32) {
pause();
}
self.ci.writef(1 << slot, true);
@ -276,6 +289,7 @@ impl HbaPort {
println!("IS_TFES set in CI loop TFS {:X} SERR {:X}", self.tfd.read(), self.serr.read());
return Err(Error::new(EIO));
}
pause();
}
if self.is.readf(HBA_PORT_IS_TFES) {
@ -312,7 +326,9 @@ pub struct HbaMem {
impl HbaMem {
pub fn reset(&mut self) {
self.ghc.writef(1, true);
while self.ghc.readf(1) {}
while self.ghc.readf(1) {
pause();
}
}
}

40
drivers/ahcid/src/main.rs
View file

@ -8,10 +8,11 @@ extern crate io;
extern crate spin;
extern crate syscall;
use std::{env, thread, usize};
use std::fs::File;
use std::io::{Read, Write};
use std::{env, thread, usize};
use syscall::{iopl, physmap, physunmap, MAP_WRITE, Packet, Scheme};
use std::os::unix::io::AsRawFd;
use syscall::{EVENT_READ, MAP_WRITE, Event, Packet, Scheme};
use scheme::DiskScheme;
@ -29,21 +30,42 @@ fn main() {
thread::spawn(move || {
unsafe {
iopl(3).expect("ahcid: failed to get I/O permission");
syscall::iopl(3).expect("ahcid: failed to get I/O permission");
asm!("cli" :::: "intel", "volatile");
}
let address = unsafe { physmap(bar, 4096, MAP_WRITE).expect("ahcid: failed to map address") };
let address = unsafe { syscall::physmap(bar, 4096, MAP_WRITE).expect("ahcid: failed to map address") };
{
let mut socket = File::create(":disk").expect("ahcid: failed to create disk scheme");
let socket_fd = socket.as_raw_fd();
syscall::fevent(socket_fd, EVENT_READ).expect("ahcid: failed to fevent disk scheme");
let mut irq_file = File::open(&format!("irq:{}", irq)).expect("ahcid: failed to open irq file");
let irq_fd = irq_file.as_raw_fd();
syscall::fevent(irq_fd, EVENT_READ).expect("ahcid: failed to fevent irq file");
let mut event_file = File::open("event:").expect("ahcid: failed to open event file");
let scheme = DiskScheme::new(ahci::disks(address, irq));
loop {
let mut packet = Packet::default();
socket.read(&mut packet).expect("ahcid: failed to read disk scheme");
scheme.handle(&mut packet);
socket.write(&mut packet).expect("ahcid: failed to read disk scheme");
let mut event = Event::default();
event_file.read(&mut event).expect("ahcid: failed to read event file");
if event.id == socket_fd {
let mut packet = Packet::default();
socket.read(&mut packet).expect("ahcid: failed to read disk scheme");
scheme.handle(&mut packet);
socket.write(&mut packet).expect("ahcid: failed to write disk scheme");
} else if event.id == irq_fd {
let mut irq = [0; 8];
if irq_file.read(&mut irq).expect("ahcid: failed to read irq file") >= irq.len() {
println!("IRQ");
irq_file.write(&irq).expect("ahcid: failed to write irq file");
}
} else {
println!("Unknown event {}", event.id);
}
}
}
unsafe { let _ = physunmap(address); }
unsafe { let _ = syscall::physunmap(address); }
});
}

22
drivers/ahcid/src/scheme.rs
View file

@ -3,7 +3,7 @@ use std::{cmp, str};
use std::sync::Arc;
use std::sync::atomic::{AtomicUsize, Ordering};
use spin::Mutex;
use syscall::{Error, EBADF, EINVAL, ENOENT, Result, Scheme, Stat, MODE_FILE, SEEK_CUR, SEEK_END, SEEK_SET};
use syscall::{Error, EACCES, EBADF, EINVAL, ENOENT, Result, Scheme, Stat, MODE_FILE, SEEK_CUR, SEEK_END, SEEK_SET};
use ahci::disk::Disk;
@ -29,17 +29,21 @@ impl DiskScheme {
}
impl Scheme for DiskScheme {
fn open(&self, path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
let path_str = str::from_utf8(path).or(Err(Error::new(ENOENT)))?;
fn open(&self, path: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<usize> {
if uid == 0 {
let path_str = str::from_utf8(path).or(Err(Error::new(ENOENT)))?;
let i = path_str.parse::<usize>().or(Err(Error::new(ENOENT)))?;
let i = path_str.parse::<usize>().or(Err(Error::new(ENOENT)))?;
if let Some(disk) = self.disks.get(i) {
let id = self.next_id.fetch_add(1, Ordering::SeqCst);
self.handles.lock().insert(id, (disk.clone(), 0));
Ok(id)
if let Some(disk) = self.disks.get(i) {
let id = self.next_id.fetch_add(1, Ordering::SeqCst);
self.handles.lock().insert(id, (disk.clone(), 0));
Ok(id)
} else {
Err(Error::new(ENOENT))
}
} else {
Err(Error::new(ENOENT))
Err(Error::new(EACCES))
}
}

5
drivers/e1000d/Cargo.toml
View file

@ -4,7 +4,8 @@ version = "0.1.0"
[dependencies]
bitflags = "*"
dma = { path = "../dma/" }
io = { path = "../io/" }
dma = { path = "../../crates/dma/" }
event = { path = "../../crates/event/" }
io = { path = "../../crates/io/" }
spin = "*"
syscall = { path = "../../syscall/" }

41
drivers/e1000d/src/device.rs
View file

@ -1,7 +1,7 @@
use std::{cmp, mem, ptr, slice};
use dma::Dma;
use syscall::error::Result;
use syscall::error::{Error, EACCES, EWOULDBLOCK, Result};
use syscall::scheme::Scheme;
const CTRL: u32 = 0x00;
@ -96,12 +96,16 @@ pub struct Intel8254x {
receive_buffer: [Dma<[u8; 16384]>; 16],
receive_ring: Dma<[Rd; 16]>,
transmit_buffer: [Dma<[u8; 16384]>; 16],
transmit_ring: Dma<[Td; 16]>,
transmit_ring: Dma<[Td; 16]>
}
impl Scheme for Intel8254x {
fn open(&self, _path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
Ok(0)
fn open(&self, _path: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<usize> {
if uid == 0 {
Ok(0)
} else {
Err(Error::new(EACCES))
}
}
fn dup(&self, id: usize) -> Result<usize> {
@ -109,7 +113,15 @@ impl Scheme for Intel8254x {
}
fn read(&self, _id: usize, buf: &mut [u8]) -> Result<usize> {
for tail in 0..self.receive_ring.len() {
let head = unsafe { self.read(RDH) };
let mut tail = unsafe { self.read(RDT) };
tail += 1;
if tail >= self.receive_ring.len() as u32 {
tail = 0;
}
if tail != head {
let rd = unsafe { &mut * (self.receive_ring.as_ptr().offset(tail as isize) as *mut Rd) };
if rd.status & RD_DD == RD_DD {
rd.status = 0;
@ -121,11 +133,14 @@ impl Scheme for Intel8254x {
buf[i] = data[i];
i += 1;
}
unsafe { self.write(RDT, tail) };
return Ok(i);
}
}
Ok(0)
Err(Error::new(EWOULDBLOCK))
}
fn write(&self, _id: usize, buf: &[u8]) -> Result<usize> {
@ -166,8 +181,12 @@ impl Scheme for Intel8254x {
return Ok(i);
}
}
unsafe { asm!("pause" : : : "memory" : "intel", "volatile"); }
}
}
fn fsync(&self, _id: usize) -> Result<usize> {
Ok(0)
}
@ -198,6 +217,11 @@ impl Intel8254x {
Ok(module)
}
pub unsafe fn irq(&self) -> bool {
let icr = self.read(ICR);
icr != 0
}
pub unsafe fn read(&self, register: u32) -> u32 {
ptr::read_volatile((self.base + register as usize) as *mut u32)
}
@ -271,8 +295,7 @@ impl Intel8254x {
self.write(TDH, 0);
self.write(TDT, 0);
//self.write(IMS, IMS_RXT | IMS_RX | IMS_RXDMT | IMS_RXSEQ | IMS_LSC | IMS_TXQE | IMS_TXDW);
self.write(IMS, 0);
self.write(IMS, IMS_RXT | IMS_RX | IMS_RXDMT | IMS_RXSEQ); // | IMS_LSC | IMS_TXQE | IMS_TXDW
self.flag(RCTL, RCTL_EN, true);
self.flag(RCTL, RCTL_UPE, true);

73
drivers/e1000d/src/main.rs
View file

@ -2,13 +2,19 @@
#![feature(question_mark)]
extern crate dma;
extern crate event;
extern crate syscall;
use std::cell::RefCell;
use std::{env, thread};
use std::fs::File;
use std::io::{Read, Write};
use std::io::{Read, Write, Result};
use std::os::unix::io::AsRawFd;
use std::sync::Arc;
use syscall::{iopl, physmap, physunmap, Packet, Scheme, MAP_WRITE};
use event::EventQueue;
use syscall::{Packet, Scheme, MAP_WRITE};
use syscall::error::EWOULDBLOCK;
pub mod device;
@ -23,21 +29,66 @@ fn main() {
thread::spawn(move || {
unsafe {
iopl(3).expect("e1000d: failed to get I/O permission");
syscall::iopl(3).expect("e1000d: failed to get I/O permission");
asm!("cli" :::: "intel", "volatile");
}
let address = unsafe { physmap(bar, 128*1024, MAP_WRITE).expect("e1000d: failed to map address") };
let socket = Arc::new(RefCell::new(File::create(":network").expect("e1000d: failed to create network scheme")));
let address = unsafe { syscall::physmap(bar, 128*1024, MAP_WRITE).expect("e1000d: failed to map address") };
{
let mut device = unsafe { device::Intel8254x::new(address, irq).expect("e1000d: failed to allocate device") };
let mut socket = File::create(":network").expect("e1000d: failed to create network scheme");
loop {
let device = Arc::new(unsafe { device::Intel8254x::new(address, irq).expect("e1000d: failed to allocate device") });
let mut event_queue = EventQueue::<()>::new().expect("e1000d: failed to create event queue");
let todo = Arc::new(RefCell::new(Vec::<Packet>::new()));
let device_irq = device.clone();
let socket_irq = socket.clone();
let todo_irq = todo.clone();
let mut irq_file = File::open(format!("irq:{}", irq)).expect("e1000d: failed to open IRQ file");
event_queue.add(irq_file.as_raw_fd(), move |_count: usize| -> Result<Option<()>> {
let mut irq = [0; 8];
irq_file.read(&mut irq)?;
if unsafe { device_irq.irq() } {
irq_file.write(&mut irq)?;
let mut todo = todo_irq.borrow_mut();
let mut i = 0;
while i < todo.len() {
let a = todo[i].a;
device_irq.handle(&mut todo[i]);
if todo[i].a == (-EWOULDBLOCK) as usize {
todo[i].a = a;
i += 1;
} else {
socket_irq.borrow_mut().write(&mut todo[i])?;
todo.remove(i);
}
}
}
Ok(None)
}).expect("e1000d: failed to catch events on IRQ file");
let socket_fd = socket.borrow().as_raw_fd();
event_queue.add(socket_fd, move |_count: usize| -> Result<Option<()>> {
let mut packet = Packet::default();
socket.read(&mut packet).expect("e1000d: failed to read network scheme");
socket.borrow_mut().read(&mut packet)?;
let a = packet.a;
device.handle(&mut packet);
socket.write(&mut packet).expect("e1000d: failed to read network scheme");
}
if packet.a == (-EWOULDBLOCK) as usize {
packet.a = a;
todo.borrow_mut().push(packet);
} else {
socket.borrow_mut().write(&mut packet)?;
}
Ok(None)
}).expect("e1000d: failed to catch events on IRQ file");
event_queue.run().expect("e1000d: failed to handle events");
}
unsafe { let _ = physunmap(address); }
unsafe { let _ = syscall::physunmap(address); }
});
}

4
drivers/ps2d/Cargo.toml
View file

@ -4,6 +4,6 @@ version = "0.1.0"
[dependencies]
bitflags = "*"
io = { path = "../io/" }
spin = "*"
io = { path = "../../crates/io/" }
orbclient = "0.1"
syscall = { path = "../../syscall/" }

72
drivers/ps2d/src/keyboard.rs
View file

@ -1,7 +1,8 @@
use std::fs::File;
use std::io::{Read, Write};
use std::mem;
use std::thread;
use orbclient::KeyEvent;
use keymap;
@ -9,7 +10,6 @@ pub fn keyboard() {
let mut file = File::open("irq:1").expect("ps2d: failed to open irq:1");
let mut input = File::open("display:input").expect("ps2d: failed to open display:input");
let mut ctrl = false;
let mut lshift = false;
let mut rshift = false;
loop {
@ -28,71 +28,17 @@ pub fn keyboard() {
(data, true)
};
if scancode == 0x1D {
ctrl = pressed;
} else if scancode == 0x2A {
if scancode == 0x2A {
lshift = pressed;
} else if scancode == 0x36 {
rshift = pressed;
} else if pressed {
match scancode {
f @ 0x3B ... 0x44 => { // F1 through F10
input.write(&[(f - 0x3B) + 0xF4]).unwrap();
},
0x57 => { // F11
input.write(&[0xFE]).unwrap();
},
0x58 => { // F12
input.write(&[0xFF]).unwrap();
},
0x47 => { // Home
input.write(b"\x1B[H").unwrap();
},
0x48 => { // Up
input.write(b"\x1B[A").unwrap();
},
0x49 => { // Page up
input.write(b"\x1B[5~").unwrap();
},
0x4B => { // Left
input.write(b"\x1B[D").unwrap();
},
0x4D => { // Right
input.write(b"\x1B[C").unwrap();
},
0x4F => { // End
input.write(b"\x1B[F").unwrap();
},
0x50 => { // Down
input.write(b"\x1B[B").unwrap();
},
0x51 => { // Page down
input.write(b"\x1B[6~").unwrap();
},
0x52 => { // Insert
input.write(b"\x1B[2~").unwrap();
},
0x53 => { // Delete
input.write(b"\x1B[3~").unwrap();
},
_ => {
let c = if ctrl {
match keymap::get_char(scancode, false) {
c @ 'a' ... 'z' => ((c as u8 - b'a') + b'\x01') as char,
c => c
}
} else {
keymap::get_char(scancode, lshift || rshift)
};
if c != '\0' {
input.write(&[c as u8]).unwrap();
}
}
}
}
} else {
thread::yield_now();
input.write(&KeyEvent {
character: keymap::get_char(scancode, lshift || rshift),
scancode: scancode,
pressed: pressed
}.to_event()).expect("ps2d: failed to write key event");
}
}
}

1
drivers/ps2d/src/main.rs
View file

@ -3,6 +3,7 @@
#[macro_use]
extern crate bitflags;
extern crate io;
extern crate orbclient;
extern crate syscall;
use std::thread;

22
drivers/ps2d/src/mouse.rs
View file

@ -1,7 +1,8 @@
use std::fs::File;
use std::io::{Read, Write};
use std::mem;
use std::thread;
use orbclient::MouseEvent;
bitflags! {
flags MousePacketFlags: u8 {
@ -18,6 +19,7 @@ bitflags! {
pub fn mouse(extra_packet: bool) {
let mut file = File::open("irq:12").expect("ps2d: failed to open irq:12");
let mut input = File::open("display:input").expect("ps2d: failed to open display:input");
let mut packets = [0; 4];
let mut packet_i = 0;
@ -40,23 +42,29 @@ pub fn mouse(extra_packet: bool) {
packet_i = 0;
} else if packet_i >= packets.len() || (!extra_packet && packet_i >= 3) {
if ! flags.contains(X_OVERFLOW) && ! flags.contains(Y_OVERFLOW) {
let mut dx = packets[1] as isize;
let mut dx = packets[1] as i32;
if flags.contains(X_SIGN) {
dx -= 0x100;
}
let mut dy = packets[2] as isize;
let mut dy = -(packets[2] as i32);
if flags.contains(Y_SIGN) {
dy -= 0x100;
dy += 0x100;
}
let extra = if extra_packet {
let _extra = if extra_packet {
packets[3]
} else {
0
};
print!("ps2d: IRQ {:?}, {}, {}, {}\n", flags, dx, dy, extra);
input.write(&MouseEvent {
x: dx,
y: dy,
left_button: flags.contains(LEFT_BUTTON),
middle_button: flags.contains(MIDDLE_BUTTON),
right_button: flags.contains(RIGHT_BUTTON)
}.to_event()).expect("ps2d: failed to write mouse event");
} else {
println!("ps2d: overflow {:X} {:X} {:X} {:X}", packets[0], packets[1], packets[2], packets[3]);
}
@ -66,8 +74,6 @@ pub fn mouse(extra_packet: bool) {
}
file.write(&irqs).expect("ps2d: failed to write irq:12");
} else {
thread::yield_now();
}
}
}

1
drivers/vesad/Cargo.toml
View file

@ -3,6 +3,7 @@ name = "vesad"
version = "0.1.0"
[dependencies]
orbclient = "0.1"
ransid = { git = "https://github.com/redox-os/ransid.git", branch = "new_api" }
rusttype = { git = "https://github.com/dylanede/rusttype.git", optional = true }
syscall = { path = "../../syscall/" }

1
drivers/vesad/src/main.rs
View file

@ -4,6 +4,7 @@
#![feature(question_mark)]
extern crate alloc;
extern crate orbclient;
extern crate syscall;
use std::fs::File;

75
drivers/vesad/src/scheme.rs
View file

@ -1,26 +1,26 @@
use std::cell::{Cell, RefCell};
use std::collections::BTreeMap;
use std::str;
use std::{mem, slice, str};
use syscall::{Result, Error, EBADF, ENOENT, Scheme};
use orbclient::{Event, EventOption};
use syscall::{Result, Error, EACCES, EBADF, ENOENT, Scheme};
use display::Display;
use screen::TextScreen;
use screen::{Screen, GraphicScreen, TextScreen};
pub struct DisplayScheme {
width: usize,
height: usize,
onscreen: usize,
active: Cell<usize>,
screens: RefCell<BTreeMap<usize, TextScreen>>
screens: RefCell<BTreeMap<usize, Box<Screen>>>
}
impl DisplayScheme {
pub fn new(width: usize, height: usize, onscreen: usize) -> DisplayScheme {
let mut screens = BTreeMap::new();
for i in 1..7 {
screens.insert(i, TextScreen::new(Display::new(width, height, onscreen)));
}
let mut screens: BTreeMap<usize, Box<Screen>> = BTreeMap::new();
screens.insert(1, Box::new(TextScreen::new(Display::new(width, height, onscreen))));
screens.insert(2, Box::new(GraphicScreen::new(Display::new(width, height, onscreen))));
DisplayScheme {
width: width,
@ -42,9 +42,13 @@ impl DisplayScheme {
}
impl Scheme for DisplayScheme {
fn open(&self, path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
fn open(&self, path: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<usize> {
if path == b"input" {
Ok(0)
if uid == 0 {
Ok(0)
} else {
Err(Error::new(EACCES))
}
} else {
let path_str = str::from_utf8(path).unwrap_or("");
let id = path_str.parse::<usize>().unwrap_or(0);
@ -63,9 +67,7 @@ impl Scheme for DisplayScheme {
fn fevent(&self, id: usize, flags: usize) -> Result<usize> {
let mut screens = self.screens.borrow_mut();
if let Some(mut screen) = screens.get_mut(&id) {
println!("fevent {:X}", flags);
screen.requested = flags;
Ok(0)
screen.event(flags)
} else {
Err(Error::new(EBADF))
}
@ -76,7 +78,7 @@ impl Scheme for DisplayScheme {
let path_str = if id == 0 {
format!("display:input")
} else if let Some(screen) = screens.get(&id) {
format!("display:{}/{}/{}", id, screen.console.w, screen.console.h)
format!("display:{}/{}/{}", id, screen.width(), screen.height())
} else {
return Err(Error::new(EBADF));
};
@ -124,11 +126,39 @@ impl Scheme for DisplayScheme {
}
Ok(1)
} else {
if let Some(mut screen) = screens.get_mut(&self.active.get()) {
screen.input(buf)
} else {
Err(Error::new(EBADF))
let events = unsafe { slice::from_raw_parts(buf.as_ptr() as *const Event, buf.len()/mem::size_of::<Event>()) };
for event in events.iter() {
let new_active_opt = if let EventOption::Key(key_event) = event.to_option() {
match key_event.scancode {
f @ 0x3B ... 0x44 => { // F1 through F10
Some((f - 0x3A) as usize)
},
0x57 => { // F11
Some(11)
},
0x58 => { // F12
Some(12)
},
_ => None
}
} else {
None
};
if let Some(new_active) = new_active_opt {
if let Some(mut screen) = screens.get_mut(&new_active) {
self.active.set(new_active);
screen.redraw();
}
} else {
if let Some(mut screen) = screens.get_mut(&self.active.get()) {
screen.input(event);
}
}
}
Ok(events.len() * mem::size_of::<Event>())
}
} else if let Some(mut screen) = screens.get_mut(&id) {
screen.write(buf, id == self.active.get())
@ -137,6 +167,15 @@ impl Scheme for DisplayScheme {
}
}
fn seek(&self, id: usize, pos: usize, whence: usize) -> Result<usize> {
let mut screens = self.screens.borrow_mut();
if let Some(mut screen) = screens.get_mut(&id) {
screen.seek(pos, whence)
} else {
Err(Error::new(EBADF))
}
}
fn close(&self, _id: usize) -> Result<usize> {
Ok(0)
}

119
drivers/vesad/src/screen/graphic.rs
View file

@ -1 +1,118 @@
pub struct GraphicScreen;
use std::collections::VecDeque;
use std::{cmp, mem, slice};
use orbclient::{Event, EventOption};
use syscall::error::*;
use syscall::flag::{SEEK_SET, SEEK_CUR, SEEK_END};
use display::Display;
use primitive::fast_copy;
use screen::Screen;
pub struct GraphicScreen {
pub display: Display,
pub seek: usize,
pub mouse_x: i32,
pub mouse_y: i32,
pub input: VecDeque<Event>,
pub requested: usize
}
impl GraphicScreen {
pub fn new(display: Display) -> GraphicScreen {
GraphicScreen {
display: display,
seek: 0,
mouse_x: 0,
mouse_y: 0,
input: VecDeque::new(),
requested: 0
}
}
}
impl Screen for GraphicScreen {
fn width(&self) -> usize {
self.display.width
}
fn height(&self) -> usize {
self.display.height
}
fn event(&mut self, flags: usize) -> Result<usize> {
self.requested = flags;
Ok(0)
}
fn input(&mut self, event: &Event) {
if let EventOption::Mouse(mut mouse_event) = event.to_option() {
let x = cmp::max(0, cmp::min(self.display.width as i32, self.mouse_x + mouse_event.x));
let y = cmp::max(0, cmp::min(self.display.height as i32, self.mouse_y + mouse_event.y));
mouse_event.x = x;
self.mouse_x = x;
mouse_event.y = y;
self.mouse_y = y;
self.input.push_back(mouse_event.to_event());
} else {
self.input.push_back(*event);
}
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
let mut i = 0;
let event_buf = unsafe { slice::from_raw_parts_mut(buf.as_mut_ptr() as *mut Event, buf.len()/mem::size_of::<Event>()) };
while i < event_buf.len() && ! self.input.is_empty() {
event_buf[i] = self.input.pop_front().unwrap();
i += 1;
}
Ok(i * mem::size_of::<Event>())
}
fn will_block(&self) -> bool {
self.input.is_empty()
}
fn write(&mut self, buf: &[u8], sync: bool) -> Result<usize> {
let size = cmp::max(0, cmp::min(self.display.offscreen.len() as isize - self.seek as isize, (buf.len()/4) as isize)) as usize;
if size > 0 {
unsafe {
fast_copy(self.display.offscreen.as_mut_ptr().offset(self.seek as isize) as *mut u8, buf.as_ptr(), size * 4);
if sync {
fast_copy(self.display.onscreen.as_mut_ptr().offset(self.seek as isize) as *mut u8, buf.as_ptr(), size * 4);
}
}
}
Ok(size * 4)
}
fn seek(&mut self, pos: usize, whence: usize) -> Result<usize> {
let size = self.display.offscreen.len();
self.seek = match whence {
SEEK_SET => cmp::min(size, (pos/4)),
SEEK_CUR => cmp::max(0, cmp::min(size as isize, self.seek as isize + (pos/4) as isize)) as usize,
SEEK_END => cmp::max(0, cmp::min(size as isize, size as isize + (pos/4) as isize)) as usize,
_ => return Err(Error::new(EINVAL))
};
Ok(self.seek * 4)
}
fn sync(&mut self) {
self.redraw();
}
fn redraw(&mut self) {
let width = self.display.width;
let height = self.display.height;
self.display.sync(0, 0, width, height);
}
}

26
drivers/vesad/src/screen/mod.rs
View file

@ -1,10 +1,30 @@
pub use self::graphic::GraphicScreen;
pub use self::text::TextScreen;
use orbclient::Event;
use syscall::Result;
mod graphic;
mod text;
pub enum Screen {
Graphic(GraphicScreen),
Text(TextScreen)
pub trait Screen {
fn width(&self) -> usize;
fn height(&self) -> usize;
fn event(&mut self, flags: usize) -> Result<usize>;
fn input(&mut self, event: &Event);
fn read(&mut self, buf: &mut [u8]) -> Result<usize>;
fn will_block(&self) -> bool;
fn write(&mut self, buf: &[u8], sync: bool) -> Result<usize>;
fn seek(&mut self, pos: usize, whence: usize) -> Result<usize>;
fn sync(&mut self);
fn redraw(&mut self);
}

110
drivers/vesad/src/screen/text.rs
View file

@ -2,15 +2,17 @@ extern crate ransid;
use std::collections::{BTreeSet, VecDeque};
use self::ransid::{Console, Event};
use orbclient::{Event, EventOption};
use syscall::Result;
use display::Display;
use screen::Screen;
pub struct TextScreen {
pub console: Console,
pub console: ransid::Console,
pub display: Display,
pub changed: BTreeSet<usize>,
pub ctrl: bool,
pub input: VecDeque<u8>,
pub end_of_input: bool,
pub cooked: VecDeque<u8>,
@ -20,17 +22,88 @@ pub struct TextScreen {
impl TextScreen {
pub fn new(display: Display) -> TextScreen {
TextScreen {
console: Console::new(display.width/8, display.height/16),
console: ransid::Console::new(display.width/8, display.height/16),
display: display,
changed: BTreeSet::new(),
ctrl: false,
input: VecDeque::new(),
end_of_input: false,
cooked: VecDeque::new(),
requested: 0
}
}
}
impl Screen for TextScreen {
fn width(&self) -> usize {
self.console.w
}
fn height(&self) -> usize {
self.console.h
}
fn event(&mut self, flags: usize) -> Result<usize> {
self.requested = flags;
Ok(0)
}
fn input(&mut self, event: &Event) {
let mut buf = vec![];
match event.to_option() {
EventOption::Key(key_event) => {
if key_event.scancode == 0x1D {
self.ctrl = key_event.pressed;
} else if key_event.pressed {
match key_event.scancode {
0x47 => { // Home
buf.extend_from_slice(b"\x1B[H");
},
0x48 => { // Up
buf.extend_from_slice(b"\x1B[A");
},
0x49 => { // Page up
buf.extend_from_slice(b"\x1B[5~");
},
0x4B => { // Left
buf.extend_from_slice(b"\x1B[D");
},
0x4D => { // Right
buf.extend_from_slice(b"\x1B[C");
},
0x4F => { // End
buf.extend_from_slice(b"\x1B[F");
},
0x50 => { // Down
buf.extend_from_slice(b"\x1B[B");
},
0x51 => { // Page down
buf.extend_from_slice(b"\x1B[6~");
},
0x52 => { // Insert
buf.extend_from_slice(b"\x1B[2~");
},
0x53 => { // Delete
buf.extend_from_slice(b"\x1B[3~");
},
_ => {
let c = match key_event.character {
c @ 'A' ... 'Z' if self.ctrl => ((c as u8 - b'A') + b'\x01') as char,
c @ 'a' ... 'z' if self.ctrl => ((c as u8 - b'a') + b'\x01') as char,
c => c
};
if c != '\0' {
buf.extend_from_slice(&[c as u8]);
}
}
}
}
},
_ => () //TODO: Mouse in terminal
}
pub fn input(&mut self, buf: &[u8]) -> Result<usize> {
if self.console.raw_mode {
for &b in buf.iter() {
self.input.push_back(b);
@ -40,11 +113,11 @@ impl TextScreen {
match b {
b'\x03' => {
self.end_of_input = true;
self.write(b"^C\n", true)?;
let _ = self.write(b"^C\n", true);
},
b'\x08' | b'\x7F' => {
if let Some(_c) = self.cooked.pop_back() {
self.write(b"\x08", true)?;
let _ = self.write(b"\x08", true);
}
},
b'\n' | b'\r' => {
@ -52,19 +125,18 @@ impl TextScreen {
while let Some(c) = self.cooked.pop_front() {
self.input.push_back(c);
}
self.write(b"\n", true)?;
let _ = self.write(b"\n", true);
},
_ => {
self.cooked.push_back(b);
self.write(&[b], true)?;
let _ = self.write(&[b], true);
}
}
}
}
Ok(buf.len())
}
pub fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
let mut i = 0;
while i < buf.len() && ! self.input.is_empty() {
@ -79,11 +151,11 @@ impl TextScreen {
Ok(i)
}
pub fn will_block(&self) -> bool {
fn will_block(&self) -> bool {
self.input.is_empty() && ! self.end_of_input
}
pub fn write(&mut self, buf: &[u8], sync: bool) -> Result<usize> {
fn write(&mut self, buf: &[u8], sync: bool) -> Result<usize> {
if self.console.cursor && self.console.x < self.console.w && self.console.y < self.console.h {
let x = self.console.x;
let y = self.console.y;
@ -97,17 +169,17 @@ impl TextScreen {
let changed = &mut self.changed;
self.console.write(buf, |event| {
match event {
Event::Char { x, y, c, color, bold, .. } => {
ransid::Event::Char { x, y, c, color, bold, .. } => {
display.char(x * 8, y * 16, c, color.data, bold, false);
changed.insert(y);
},
Event::Rect { x, y, w, h, color } => {
ransid::Event::Rect { x, y, w, h, color } => {
display.rect(x * 8, y * 16, w * 8, h * 16, color.data);
for y2 in y..y + h {
changed.insert(y2);
}
},
Event::Scroll { rows, color } => {
ransid::Event::Scroll { rows, color } => {
display.scroll(rows * 16, color.data);
for y in 0..display.height/16 {
changed.insert(y);
@ -132,7 +204,11 @@ impl TextScreen {
Ok(buf.len())
}
pub fn sync(&mut self) {
fn seek(&mut self, pos: usize, whence: usize) -> Result<usize> {
Ok(0)
}
fn sync(&mut self) {
let width = self.display.width;
for change in self.changed.iter() {
self.display.sync(0, change * 16, width, 16);
@ -140,7 +216,7 @@ impl TextScreen {
self.changed.clear();
}
pub fn redraw(&mut self) {
fn redraw(&mut self) {
let width = self.display.width;
let height = self.display.height;
self.display.sync(0, 0, width, height);

1
filesystem/etc/net/dns Normal file
View file

@ -0,0 +1 @@
10.0.2.3

1
filesystem/etc/net/ip Normal file
View file

@ -0,0 +1 @@
10.0.2.15

1
filesystem/etc/net/ip_router Normal file
View file

@ -0,0 +1 @@
10.0.2.2

1
filesystem/etc/net/ip_subnet Normal file
View file

@ -0,0 +1 @@
255.255.255.0

1
filesystem/etc/net/mac Normal file
View file

@ -0,0 +1 @@
52.54.00.12.34.56

2
filesystem/etc/orbital.conf Normal file
View file

@ -0,0 +1,2 @@
background=/ui/background.png
cursor=/ui/cursor.png

1
filesystem/ui Submodule

@ -0,0 +1 @@
Subproject commit d371b3c396dfd92f7708de0f7c7c12b9db2c3a8b

10
initfs/etc/init.rc
View file

@ -3,9 +3,9 @@ initfs:bin/redoxfs disk:0
initfs:bin/pcid file:etc/pcid.toml
file:bin/vesad
file:bin/ps2d
file:bin/ethernetd
file:bin/ipd
file:bin/tcpd
file:bin/udpd
file:bin/getty display:1
file:bin/getty display:2
file:bin/getty display:3
file:bin/getty display:4
file:bin/getty display:5
file:bin/getty display:6
file:bin/orbital display:2

35
kernel/context/context.rs
View file

@ -1,12 +1,13 @@
use alloc::arc::Arc;
use alloc::boxed::Box;
use collections::{BTreeMap, Vec, VecDeque};
use collections::{BTreeMap, Vec};
use spin::Mutex;
use arch;
use context::file::File;
use context::memory::{Grant, Memory, SharedMemory};
use syscall::data::Event;
use super::file::File;
use super::memory::{Grant, Memory, SharedMemory};
use sync::{WaitCondition, WaitQueue};
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum Status {
@ -36,6 +37,10 @@ pub struct Context {
pub running: bool,
/// Context is halting parent
pub vfork: bool,
/// Context is being waited on
pub waitpid: Arc<WaitCondition>,
/// Context should wake up at specified time
pub wake: Option<(u64, u64)>,
/// The architecture specific context
pub arch: arch::context::Context,
/// Kernel FX
@ -53,7 +58,7 @@ pub struct Context {
/// The current working directory
pub cwd: Arc<Mutex<Vec<u8>>>,
/// Kernel events
pub events: Arc<Mutex<VecDeque<Event>>>,
pub events: Arc<WaitQueue<Event>>,
/// The process environment
pub env: Arc<Mutex<BTreeMap<Box<[u8]>, Arc<Mutex<Vec<u8>>>>>>,
/// The open files in the scheme
@ -73,6 +78,8 @@ impl Context {
status: Status::Blocked,
running: false,
vfork: false,
waitpid: Arc::new(WaitCondition::new()),
wake: None,
arch: arch::context::Context::new(),
kfx: None,
kstack: None,
@ -81,7 +88,7 @@ impl Context {
stack: None,
grants: Arc::new(Mutex::new(Vec::new())),
cwd: Arc::new(Mutex::new(Vec::new())),
events: Arc::new(Mutex::new(VecDeque::new())),
events: Arc::new(WaitQueue::new()),
env: Arc::new(Mutex::new(BTreeMap::new())),
files: Arc::new(Mutex::new(Vec::new()))
}
@ -128,6 +135,24 @@ impl Context {
}
}
pub fn block(&mut self) -> bool {
if self.status == Status::Runnable {
self.status = Status::Blocked;
true
} else {
false
}
}
pub fn unblock(&mut self) -> bool {
if self.status == Status::Blocked {
self.status = Status::Runnable;
true
} else {
false
}
}
/// Add a file to the lowest available slot.
/// Return the file descriptor number or None if no slot was found
pub fn add_file(&self, file: File) -> Option<usize> {

12
kernel/context/event.rs
View file

@ -1,11 +1,12 @@
use alloc::arc::{Arc, Weak};
use collections::{BTreeMap, VecDeque};
use spin::{Mutex, Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use collections::BTreeMap;
use spin::{Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use context;
use sync::WaitQueue;
use syscall::data::Event;
type EventList = Weak<Mutex<VecDeque<Event>>>;
type EventList = Weak<WaitQueue<Event>>;
type Registry = BTreeMap<(usize, usize), BTreeMap<(usize, usize), EventList>>;
@ -67,9 +68,8 @@ pub fn trigger(scheme_id: usize, id: usize, flags: usize, data: usize) {
let registry = registry();
if let Some(event_lists) = registry.get(&(scheme_id, id)) {
for entry in event_lists.iter() {
if let Some(event_list_lock) = entry.1.upgrade() {
let mut event_list = event_list_lock.lock();
event_list.push_back(Event {
if let Some(event_list) = entry.1.upgrade() {
event_list.send(Event {
id: (entry.0).1,
flags: flags,
data: data

59
kernel/context/switch.rs
View file

@ -16,36 +16,55 @@ pub unsafe fn switch() -> bool {
arch::interrupt::pause();
}
let from_ptr = {
let contexts = contexts();
let context_lock = contexts.current().expect("context::switch: Not inside of context");
let mut context = context_lock.write();
context.deref_mut() as *mut Context
};
let from_ptr;
let mut to_ptr = 0 as *mut Context;
for (pid, context_lock) in contexts().iter() {
if *pid > (*from_ptr).id {
{
let contexts = contexts();
{
let context_lock = contexts.current().expect("context::switch: Not inside of context");
let mut context = context_lock.write();
if context.status == Status::Runnable && ! context.running {
to_ptr = context.deref_mut() as *mut Context;
break;
}
from_ptr = context.deref_mut() as *mut Context;
}
}
if to_ptr as usize == 0 {
for (pid, context_lock) in contexts().iter() {
if *pid < (*from_ptr).id {
let check_context = |context: &mut Context| -> bool {
if context.status == Status::Blocked && context.wake.is_some() {
let wake = context.wake.expect("context::switch: wake not set");
let current = arch::time::monotonic();
if current.0 > wake.0 || (current.0 == wake.0 && current.1 >= wake.1) {
context.unblock();
}
}
if context.status == Status::Runnable && ! context.running {
true
} else {
false
}
};
for (pid, context_lock) in contexts.iter() {
if *pid > (*from_ptr).id {
let mut context = context_lock.write();
if context.status == Status::Runnable && ! context.running {
if check_context(&mut context) {
to_ptr = context.deref_mut() as *mut Context;
break;
}
}
}
}
if to_ptr as usize == 0 {
for (pid, context_lock) in contexts.iter() {
if *pid < (*from_ptr).id {
let mut context = context_lock.write();
if check_context(&mut context) {
to_ptr = context.deref_mut() as *mut Context;
break;
}
}
}
}
};
if to_ptr as usize == 0 {
// Unset global lock if no context found

4
kernel/lib.rs
View file

@ -69,6 +69,7 @@
#![feature(asm)]
#![feature(collections)]
#![feature(const_fn)]
#![feature(core_intrinsics)]
#![feature(drop_types_in_const)]
#![feature(heap_api)]
#![feature(integer_atomics)]
@ -115,6 +116,9 @@ pub mod elf;
/// Schemes, filesystem handlers
pub mod scheme;
/// Synchronization primitives
pub mod sync;
/// Syscall handlers
pub mod syscall;

39
kernel/scheme/debug.rs
View file

@ -1,31 +1,27 @@
use collections::VecDeque;
use core::str;
use core::sync::atomic::{AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
use spin::{Mutex, Once};
use spin::Once;
use context;
use sync::WaitQueue;
use syscall::error::*;
use syscall::flag::EVENT_READ;
use syscall::scheme::Scheme;
pub static DEBUG_SCHEME_ID: AtomicUsize = ATOMIC_USIZE_INIT;
/// Input
static INPUT: Once<Mutex<VecDeque<u8>>> = Once::new();
/// Input queue
static INPUT: Once<WaitQueue<u8>> = Once::new();
/// Initialize contexts, called if needed
fn init_input() -> Mutex<VecDeque<u8>> {
Mutex::new(VecDeque::new())
/// Initialize input queue, called if needed
fn init_input() -> WaitQueue<u8> {
WaitQueue::new()
}
/// Get the global schemes list, const
/// Add to the input queue
#[no_mangle]
pub extern fn debug_input(b: u8) {
let len = {
let mut input = INPUT.call_once(init_input).lock();
input.push_back(b);
input.len()
};
let len = INPUT.call_once(init_input).send(b);
context::event::trigger(DEBUG_SCHEME_ID.load(Ordering::SeqCst), 0, EVENT_READ, len);
}
@ -45,22 +41,7 @@ impl Scheme for DebugScheme {
///
/// Returns the number of bytes read
fn read(&self, _file: usize, buf: &mut [u8]) -> Result<usize> {
loop {
let mut i = 0;
{
let mut input = INPUT.call_once(init_input).lock();
while i < buf.len() && ! input.is_empty() {
buf[i] = input.pop_front().expect("debug_input lost byte");
i += 1;
}
}
if i > 0 {
return Ok(i);
} else {
unsafe { context::switch(); } //TODO: Block
}
}
Ok(INPUT.call_once(init_input).receive_into(buf))
}
/// Write the `buffer` to the `file`

34
kernel/scheme/event.rs
View file

@ -1,17 +1,18 @@
use alloc::arc::{Arc, Weak};
use collections::{BTreeMap, VecDeque};
use core::mem;
use collections::BTreeMap;
use core::{mem, slice};
use core::sync::atomic::{AtomicUsize, Ordering};
use spin::{Mutex, RwLock};
use spin::RwLock;
use context;
use sync::WaitQueue;
use syscall::data::Event;
use syscall::error::*;
use syscall::scheme::Scheme;
pub struct EventScheme {
next_id: AtomicUsize,
handles: RwLock<BTreeMap<usize, Weak<Mutex<VecDeque<Event>>>>>
handles: RwLock<BTreeMap<usize, Weak<WaitQueue<Event>>>>
}
impl EventScheme {
@ -57,29 +58,8 @@ impl Scheme for EventScheme {
handle_weak.upgrade().ok_or(Error::new(EBADF))?
};
let event_size = mem::size_of::<Event>();
let len = buf.len()/event_size;
if len > 0 {
loop {
let mut i = 0;
{
let mut events = handle.lock();
while ! events.is_empty() && i < len {
let event = events.pop_front().unwrap();
unsafe { *(buf.as_mut_ptr() as *mut Event).offset(i as isize) = event; }
i += 1;
}
}
if i > 0 {
return Ok(i * event_size);
} else {
unsafe { context::switch(); } //TODO: Block
}
}
} else {
Ok(0)
}
let event_buf = unsafe { slice::from_raw_parts_mut(buf.as_mut_ptr() as *mut Event, buf.len()/mem::size_of::<Event>()) };
Ok(handle.receive_into(event_buf) * mem::size_of::<Event>())
}
fn fsync(&self, id: usize) -> Result<usize> {

71
kernel/scheme/irq.rs
View file

@ -1,21 +1,54 @@
use core::{mem, str};
use core::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
use spin::{Mutex, Once};
use arch::interrupt::irq::{ACKS, COUNTS, acknowledge};
use arch::interrupt::irq::acknowledge;
use context;
use sync::WaitCondition;
use syscall::error::*;
use syscall::flag::EVENT_READ;
use syscall::scheme::Scheme;
pub static IRQ_SCHEME_ID: AtomicUsize = ATOMIC_USIZE_INIT;
/// IRQ queues
static ACKS: Mutex<[usize; 16]> = Mutex::new([0; 16]);
static COUNTS: Mutex<[usize; 16]> = Mutex::new([0; 16]);
static WAITS: Once<[WaitCondition; 16]> = Once::new();
fn init_waits() -> [WaitCondition; 16] {
[
WaitCondition::new(), WaitCondition::new(), WaitCondition::new(), WaitCondition::new(),
WaitCondition::new(), WaitCondition::new(), WaitCondition::new(), WaitCondition::new(),
WaitCondition::new(), WaitCondition::new(), WaitCondition::new(), WaitCondition::new(),
WaitCondition::new(), WaitCondition::new(), WaitCondition::new(), WaitCondition::new()
]
}
/// Add to the input queue
#[no_mangle]
pub extern fn irq_trigger(irq: u8) {
COUNTS.lock()[irq as usize] += 1;
WAITS.call_once(init_waits)[irq as usize].notify();
context::event::trigger(IRQ_SCHEME_ID.load(Ordering::SeqCst), irq as usize, EVENT_READ, mem::size_of::<usize>());
}
pub struct IrqScheme;
impl Scheme for IrqScheme {
fn open(&self, path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
let path_str = str::from_utf8(path).or(Err(Error::new(ENOENT)))?;
fn open(&self, path: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<usize> {
if uid == 0 {
let path_str = str::from_utf8(path).or(Err(Error::new(ENOENT)))?;
let id = path_str.parse::<usize>().or(Err(Error::new(ENOENT)))?;
let id = path_str.parse::<usize>().or(Err(Error::new(ENOENT)))?;
if id < COUNTS.lock().len() {
Ok(id)
if id < COUNTS.lock().len() {
Ok(id)
} else {
Err(Error::new(ENOENT))
}
} else {
Err(Error::new(ENOENT))
Err(Error::new(EACCES))
}
}
@ -26,15 +59,17 @@ impl Scheme for IrqScheme {
fn read(&self, file: usize, buffer: &mut [u8]) -> Result<usize> {
// Ensures that the length of the buffer is larger than the size of a usize
if buffer.len() >= mem::size_of::<usize>() {
let ack = ACKS.lock()[file];
let current = COUNTS.lock()[file];
if ack != current {
// Safe if the length of the buffer is larger than the size of a usize
assert!(buffer.len() >= mem::size_of::<usize>());
unsafe { *(buffer.as_mut_ptr() as *mut usize) = current; }
Ok(mem::size_of::<usize>())
} else {
Ok(0)
loop {
let ack = ACKS.lock()[file];
let current = COUNTS.lock()[file];
if ack != current {
// Safe if the length of the buffer is larger than the size of a usize
assert!(buffer.len() >= mem::size_of::<usize>());
unsafe { *(buffer.as_mut_ptr() as *mut usize) = current; }
return Ok(mem::size_of::<usize>());
} else {
WAITS.call_once(init_waits)[file].wait();
}
}
} else {
Err(Error::new(EINVAL))
@ -58,6 +93,10 @@ impl Scheme for IrqScheme {
}
}
fn fevent(&self, _file: usize, _flags: usize) -> Result<usize> {
Ok(0)
}
fn fsync(&self, _file: usize) -> Result<usize> {
Ok(0)
}

8
kernel/scheme/mod.rs
View file

@ -19,9 +19,9 @@ use self::debug::{DEBUG_SCHEME_ID, DebugScheme};
use self::event::EventScheme;
use self::env::EnvScheme;
use self::initfs::InitFsScheme;
use self::irq::IrqScheme;
use self::irq::{IRQ_SCHEME_ID, IrqScheme};
use self::pipe::{PIPE_SCHEME_ID, PipeScheme};
use self::root::RootScheme;
use self::root::{ROOT_SCHEME_ID, RootScheme};
/// Debug scheme
pub mod debug;
@ -114,12 +114,12 @@ static SCHEMES: Once<RwLock<SchemeList>> = Once::new();
/// Initialize schemes, called if needed
fn init_schemes() -> RwLock<SchemeList> {
let mut list: SchemeList = SchemeList::new();
list.insert(Box::new(*b""), Arc::new(Box::new(RootScheme::new()))).expect("failed to insert root scheme");
ROOT_SCHEME_ID.store(list.insert(Box::new(*b""), Arc::new(Box::new(RootScheme::new()))).expect("failed to insert root scheme"), Ordering::SeqCst);
DEBUG_SCHEME_ID.store(list.insert(Box::new(*b"debug"), Arc::new(Box::new(DebugScheme))).expect("failed to insert debug scheme"), Ordering::SeqCst);
list.insert(Box::new(*b"event"), Arc::new(Box::new(EventScheme::new()))).expect("failed to insert event scheme");
list.insert(Box::new(*b"env"), Arc::new(Box::new(EnvScheme::new()))).expect("failed to insert env scheme");
list.insert(Box::new(*b"initfs"), Arc::new(Box::new(InitFsScheme::new()))).expect("failed to insert initfs scheme");
list.insert(Box::new(*b"irq"), Arc::new(Box::new(IrqScheme))).expect("failed to insert irq scheme");
IRQ_SCHEME_ID.store(list.insert(Box::new(*b"irq"), Arc::new(Box::new(IrqScheme))).expect("failed to insert irq scheme"), Ordering::SeqCst);
PIPE_SCHEME_ID.store(list.insert(Box::new(*b"pipe"), Arc::new(Box::new(PipeScheme))).expect("failed to insert pipe scheme"), Ordering::SeqCst);
RwLock::new(list)
}

41
kernel/scheme/pipe.rs
View file

@ -1,8 +1,9 @@
use alloc::arc::{Arc, Weak};
use collections::{BTreeMap, VecDeque};
use collections::BTreeMap;
use core::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
use spin::{Mutex, Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use spin::{Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use sync::WaitQueue;
use syscall::error::{Error, Result, EBADF, EPIPE};
use syscall::scheme::Scheme;
@ -103,43 +104,21 @@ impl Scheme for PipeScheme {
/// Read side of a pipe
#[derive(Clone)]
pub struct PipeRead {
vec: Arc<Mutex<VecDeque<u8>>>
vec: Arc<WaitQueue<u8>>
}
impl PipeRead {
pub fn new() -> Self {
PipeRead {
vec: Arc::new(Mutex::new(VecDeque::new()))
vec: Arc::new(WaitQueue::new())
}
}
fn read(&self, buf: &mut [u8]) -> Result<usize> {
if buf.is_empty() || (Arc::weak_count(&self.vec) == 0 && self.vec.lock().is_empty()) {
if buf.is_empty() || (Arc::weak_count(&self.vec) == 0 && self.vec.is_empty()) {
Ok(0)
} else {
/*loop {
{
if let Some(byte) = self.vec.lock().pop_front() {
buf[0] = byte;
break;
}
}
unsafe { context::switch(); }
}*/
let mut i = 0;
while i < buf.len() {
match self.vec.lock().pop_front() {
Some(b) => {
buf[i] = b;
i += 1;
},
None => break
}
}
Ok(i)
Ok(self.vec.receive_into(buf))
}
}
}
@ -147,7 +126,7 @@ impl PipeRead {
/// Read side of a pipe
#[derive(Clone)]
pub struct PipeWrite {
vec: Weak<Mutex<VecDeque<u8>>>,
vec: Weak<WaitQueue<u8>>,
}
impl PipeWrite {
@ -160,9 +139,7 @@ impl PipeWrite {
fn write(&self, buf: &[u8]) -> Result<usize> {
match self.vec.upgrade() {
Some(vec) => {
for &b in buf.iter() {
vec.lock().push_back(b);
}
vec.send_from(buf);
Ok(buf.len())
},

51
kernel/scheme/root.rs
View file

@ -1,7 +1,7 @@
use alloc::arc::Arc;
use alloc::boxed::Box;
use collections::BTreeMap;
use core::sync::atomic::{AtomicUsize, Ordering};
use core::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT, Ordering};
use spin::RwLock;
use context;
@ -10,6 +10,8 @@ use syscall::scheme::Scheme;
use scheme;
use scheme::user::{UserInner, UserScheme};
pub static ROOT_SCHEME_ID: AtomicUsize = ATOMIC_USIZE_INIT;
pub struct RootScheme {
next_id: AtomicUsize,
handles: RwLock<BTreeMap<usize, Arc<UserInner>>>
@ -25,28 +27,33 @@ impl RootScheme {
}
impl Scheme for RootScheme {
fn open(&self, path: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<usize> {
let context = {
let contexts = context::contexts();
let context = contexts.current().ok_or(Error::new(ESRCH))?;
Arc::downgrade(&context)
};
fn open(&self, path: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<usize> {
if uid == 0 {
let context = {
let contexts = context::contexts();
let context = contexts.current().ok_or(Error::new(ESRCH))?;
Arc::downgrade(&context)
};
let inner = {
let mut schemes = scheme::schemes_mut();
if schemes.get_name(path).is_some() {
return Err(Error::new(EEXIST));
}
let inner = Arc::new(UserInner::new(context));
let id = schemes.insert(path.to_vec().into_boxed_slice(), Arc::new(Box::new(UserScheme::new(Arc::downgrade(&inner))))).expect("failed to insert user scheme");
inner.scheme_id.store(id, Ordering::SeqCst);
inner
};
let id = self.next_id.fetch_add(1, Ordering::SeqCst);
let id = self.next_id.fetch_add(1, Ordering::SeqCst);
self.handles.write().insert(id, inner);
let inner = {
let mut schemes = scheme::schemes_mut();
if schemes.get_name(path).is_some() {
return Err(Error::new(EEXIST));
}
let inner = Arc::new(UserInner::new(id, context));
let scheme_id = schemes.insert(path.to_vec().into_boxed_slice(), Arc::new(Box::new(UserScheme::new(Arc::downgrade(&inner))))).expect("failed to insert user scheme");
inner.scheme_id.store(scheme_id, Ordering::SeqCst);
inner
};
Ok(id)
self.handles.write().insert(id, inner);
Ok(id)
} else {
Err(Error::new(EACCES))
}
}
fn dup(&self, file: usize) -> Result<usize> {
@ -82,6 +89,10 @@ impl Scheme for RootScheme {
inner.write(buf)
}
fn fevent(&self, _file: usize, _flags: usize) -> Result<usize> {
Ok(0)
}
fn fsync(&self, _file: usize) -> Result<usize> {
Ok(0)
}

61
kernel/scheme/user.rs
View file

@ -1,35 +1,39 @@
use alloc::arc::Weak;
use collections::{BTreeMap, VecDeque};
use core::sync::atomic::{AtomicUsize, AtomicU64, Ordering};
use core::{mem, usize};
use spin::{Mutex, RwLock};
use core::{mem, slice, usize};
use spin::RwLock;
use arch;
use arch::paging::{InactivePageTable, Page, VirtualAddress, entry};
use arch::paging::temporary_page::TemporaryPage;
use context::{self, Context};
use context::memory::Grant;
use scheme::root::ROOT_SCHEME_ID;
use sync::{WaitQueue, WaitMap};
use syscall::data::{Packet, Stat};
use syscall::error::*;
use syscall::flag::EVENT_READ;
use syscall::number::*;
use syscall::scheme::Scheme;
pub struct UserInner {
handle_id: usize,
pub scheme_id: AtomicUsize,
next_id: AtomicU64,
context: Weak<RwLock<Context>>,
todo: Mutex<VecDeque<Packet>>,
done: Mutex<BTreeMap<u64, usize>>
todo: WaitQueue<Packet>,
done: WaitMap<u64, usize>
}
impl UserInner {
pub fn new(context: Weak<RwLock<Context>>) -> UserInner {
pub fn new(handle_id: usize, context: Weak<RwLock<Context>>) -> UserInner {
UserInner {
handle_id: handle_id,
scheme_id: AtomicUsize::new(0),
next_id: AtomicU64::new(1),
context: context,
todo: Mutex::new(VecDeque::new()),
done: Mutex::new(BTreeMap::new())
todo: WaitQueue::new(),
done: WaitMap::new()
}
}
@ -54,18 +58,10 @@ impl UserInner {
d: d
};
self.todo.lock().push_back(packet);
let len = self.todo.send(packet);
context::event::trigger(ROOT_SCHEME_ID.load(Ordering::SeqCst), self.handle_id, EVENT_READ, len * mem::size_of::<Packet>());
loop {
{
let mut done = self.done.lock();
if let Some(a) = done.remove(&id) {
return Error::demux(a);
}
}
unsafe { context::switch(); } //TODO: Block
}
Error::demux(self.done.receive(&id))
}
pub fn capture(&self, buf: &[u8]) -> Result<usize> {
@ -158,29 +154,8 @@ impl UserInner {
}
pub fn read(&self, buf: &mut [u8]) -> Result<usize> {
let packet_size = mem::size_of::<Packet>();
let len = buf.len()/packet_size;
if len > 0 {
loop {
let mut i = 0;
{
let mut todo = self.todo.lock();
while ! todo.is_empty() && i < len {
let packet = todo.pop_front().unwrap();
unsafe { *(buf.as_mut_ptr() as *mut Packet).offset(i as isize) = packet; }
i += 1;
}
}
if i > 0 {
return Ok(i * packet_size);
} else {
unsafe { context::switch(); } //TODO: Block
}
}
} else {
Ok(0)
}
let packet_buf = unsafe { slice::from_raw_parts_mut(buf.as_mut_ptr() as *mut Packet, buf.len()/mem::size_of::<Packet>()) };
Ok(self.todo.receive_into(packet_buf) * mem::size_of::<Packet>())
}
pub fn write(&self, buf: &[u8]) -> Result<usize> {
@ -195,7 +170,7 @@ impl UserInner {
_ => println!("Unknown scheme -> kernel message {}", packet.a)
}
} else {
self.done.lock().insert(packet.id, packet.a);
self.done.send(packet.id, packet.a);
}
i += 1;
}

7
kernel/sync/mod.rs Normal file
View file

@ -0,0 +1,7 @@
pub use self::wait_condition::WaitCondition;
pub use self::wait_queue::WaitQueue;
pub use self::wait_map::WaitMap;
pub mod wait_condition;
pub mod wait_queue;
pub mod wait_map;

49
kernel/sync/wait_condition.rs Normal file
View file

@ -0,0 +1,49 @@
use alloc::arc::Arc;
use collections::Vec;
use core::mem;
use spin::{Mutex, RwLock};
use context::{self, Context};
#[derive(Debug)]
pub struct WaitCondition {
contexts: Mutex<Vec<Arc<RwLock<Context>>>>
}
impl WaitCondition {
pub fn new() -> WaitCondition {
WaitCondition {
contexts: Mutex::new(Vec::new())
}
}
pub fn notify(&self) -> usize {
let mut contexts = Vec::new();
mem::swap(&mut *self.contexts.lock(), &mut contexts);
for context_lock in contexts.iter() {
context_lock.write().unblock();
}
contexts.len()
}
pub fn wait(&self) {
{
let context_lock = {
let contexts = context::contexts();
let context_lock = contexts.current().expect("WaitCondition::wait: no context");
context_lock.clone()
};
context_lock.write().block();
self.contexts.lock().push(context_lock);
}
unsafe { context::switch(); }
}
}
impl Drop for WaitCondition {
fn drop(&mut self){
self.notify();
}
}

33
kernel/sync/wait_map.rs Normal file
View file

@ -0,0 +1,33 @@
use collections::BTreeMap;
use spin::Mutex;
use sync::WaitCondition;
#[derive(Debug)]
pub struct WaitMap<K, V> {
inner: Mutex<BTreeMap<K, V>>,
condition: WaitCondition
}
impl<K, V> WaitMap<K, V> where K: Ord {
pub fn new() -> WaitMap<K, V> {
WaitMap {
inner: Mutex::new(BTreeMap::new()),
condition: WaitCondition::new()
}
}
pub fn send(&self, key: K, value: V) {
self.inner.lock().insert(key, value);
self.condition.notify();
}
pub fn receive(&self, key: &K) -> V {
loop {
if let Some(value) = self.inner.lock().remove(key) {
return value;
}
self.condition.wait();
}
}
}

95
kernel/sync/wait_queue.rs Normal file
View file

@ -0,0 +1,95 @@
use collections::vec_deque::VecDeque;
use core::mem;
use core::ops::DerefMut;
use spin::Mutex;
use sync::WaitCondition;
#[derive(Debug)]
pub struct WaitQueue<T> {
pub inner: Mutex<VecDeque<T>>,
pub condition: WaitCondition,
}
impl<T> WaitQueue<T> {
pub fn new() -> WaitQueue<T> {
WaitQueue {
inner: Mutex::new(VecDeque::new()),
condition: WaitCondition::new()
}
}
pub fn clone(&self) -> WaitQueue<T> where T: Clone {
WaitQueue {
inner: Mutex::new(self.inner.lock().clone()),
condition: WaitCondition::new()
}
}
pub fn is_empty(&self) -> bool {
self.inner.lock().is_empty()
}
pub fn receive(&self) -> T {
loop {
if let Some(value) = self.inner.lock().pop_front() {
return value;
}
self.condition.wait();
}
}
pub fn receive_into(&self, buf: &mut [T]) -> usize {
let mut i = 0;
if i < buf.len() {
buf[i] = self.receive();
i += 1;
}
while i < buf.len() {
if let Some(value) = self.inner.lock().pop_front() {
buf[i] = value;
i += 1;
} else {
break;
}
}
i
}
pub fn receive_all(&self) -> VecDeque<T> {
loop {
{
let mut inner = self.inner.lock();
if ! inner.is_empty() {
let mut swap_inner = VecDeque::new();
mem::swap(inner.deref_mut(), &mut swap_inner);
return swap_inner;
}
}
self.condition.wait();
}
}
pub fn send(&self, value: T) -> usize {
let len = {
let mut inner = self.inner.lock();
inner.push_back(value);
inner.len()
};
self.condition.notify();
len
}
pub fn send_from(&self, buf: &[T]) -> usize where T: Copy {
let len = {
let mut inner = self.inner.lock();
inner.extend(buf.iter());
inner.len()
};
self.condition.notify();
len
}
}

110
kernel/syscall/futex.rs Normal file
View file

@ -0,0 +1,110 @@
use alloc::arc::Arc;
use collections::VecDeque;
use core::intrinsics;
use spin::{Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use context::{self, Context};
use syscall::error::{Error, Result, ESRCH, EAGAIN, EINVAL};
use syscall::flag::{FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE};
use syscall::validate::validate_slice_mut;
type FutexList = VecDeque<(usize, Arc<RwLock<Context>>)>;
/// Fast userspace mutex list
static FUTEXES: Once<RwLock<FutexList>> = Once::new();
/// Initialize futexes, called if needed
fn init_futexes() -> RwLock<FutexList> {
RwLock::new(VecDeque::new())
}
/// Get the global futexes list, const
pub fn futexes() -> RwLockReadGuard<'static, FutexList> {
FUTEXES.call_once(init_futexes).read()
}
/// Get the global futexes list, mutable
pub fn futexes_mut() -> RwLockWriteGuard<'static, FutexList> {
FUTEXES.call_once(init_futexes).write()
}
pub fn futex(addr: &mut i32, op: usize, val: i32, val2: usize, addr2: *mut i32) -> Result<usize> {
match op {
FUTEX_WAIT => {
{
let mut futexes = futexes_mut();
let context_lock = {
let contexts = context::contexts();
let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
context_lock.clone()
};
if unsafe { intrinsics::atomic_load(addr) != val } {
return Err(Error::new(EAGAIN));
}
context_lock.write().block();
futexes.push_back((addr as *mut i32 as usize, context_lock));
}
unsafe { context::switch(); }
Ok(0)
},
FUTEX_WAKE => {
let mut woken = 0;
{
let mut futexes = futexes_mut();
let mut i = 0;
while i < futexes.len() && (woken as i32) < val {
if futexes[i].0 == addr as *mut i32 as usize {
if let Some(futex) = futexes.swap_remove_back(i) {
futex.1.write().unblock();
woken += 1;
}
} else {
i += 1;
}
}
}
Ok(woken)
},
FUTEX_REQUEUE => {
let addr2_safe = validate_slice_mut(addr2, 1).map(|addr2_safe| &mut addr2_safe[0])?;
let mut woken = 0;
let mut requeued = 0;
{
let mut futexes = futexes_mut();
let mut i = 0;
while i < futexes.len() && (woken as i32) < val {
if futexes[i].0 == addr as *mut i32 as usize {
if let Some(futex) = futexes.swap_remove_back(i) {
futex.1.write().unblock();
woken += 1;
}
} else {
i += 1;
}
}
while i < futexes.len() && requeued < val2 {
if futexes[i].0 == addr as *mut i32 as usize {
futexes[i].0 = addr2_safe as *mut i32 as usize;
requeued += 1;
}
i += 1;
}
}
Ok(woken)
},
_ => Err(Error::new(EINVAL))
}
}

13
kernel/syscall/mod.rs
View file

@ -5,6 +5,7 @@ extern crate syscall;
pub use self::syscall::{data, error, flag, number, scheme};
pub use self::fs::*;
pub use self::futex::futex;
pub use self::process::*;
pub use self::time::*;
pub use self::validate::*;
@ -16,6 +17,9 @@ use self::number::*;
/// Filesystem syscalls
pub mod fs;
/// Fast userspace mutex
pub mod futex;
/// Process syscalls
pub mod process;
@ -28,7 +32,7 @@ pub mod validate;
#[no_mangle]
pub extern fn syscall(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize, stack: usize) -> usize {
#[inline(always)]
fn inner(a: usize, b: usize, c: usize, d: usize, e: usize, _f: usize, stack: usize) -> Result<usize> {
fn inner(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize, stack: usize) -> Result<usize> {
match a & SYS_CLASS {
SYS_CLASS_FILE => match a & SYS_ARG {
SYS_ARG_SLICE => file_op_slice(a, b, validate_slice(c as *const u8, d)?),
@ -66,6 +70,7 @@ pub extern fn syscall(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize
SYS_SETUID => setuid(b as u32),
SYS_SETGID => setgid(b as u32),
SYS_CLOCK_GETTIME => clock_gettime(b, validate_slice_mut(c as *mut TimeSpec, 1).map(|time| &mut time[0])?),
SYS_FUTEX => futex(validate_slice_mut(b as *mut i32, 1).map(|uaddr| &mut uaddr[0])?, c, d as i32, e, f as *mut i32),
SYS_PIPE2 => pipe2(validate_slice_mut(b as *mut usize, 2)?, c),
SYS_PHYSALLOC => physalloc(b),
SYS_PHYSFREE => physfree(b, c),
@ -78,10 +83,10 @@ pub extern fn syscall(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize
}
let result = inner(a, b, c, d, e, f, stack);
/*
if let Err(ref err) = result {
println!("{}, {}, {}, {}: {}", a & 0xFFFF, b, c, d, err);
println!("{}, {}, {}, {}: {}", a, b, c, d, err);
}
*/
Error::mux(result)
}

19
kernel/syscall/process.rs
View file

@ -2,9 +2,8 @@
use alloc::arc::Arc;
use alloc::boxed::Box;
use collections::{BTreeMap, Vec};
use core::mem;
use core::{mem, str};
use core::ops::DerefMut;
use core::str;
use spin::Mutex;
use arch;
@ -247,7 +246,7 @@ pub fn clone(flags: usize, stack_base: usize) -> Result<usize> {
let contexts = context::contexts();
let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
let mut context = context_lock.write();
context.status = context::Status::Blocked;
context.block();
vfork = true;
} else {
vfork = false;
@ -416,14 +415,13 @@ pub fn exit(status: usize) -> ! {
let vfork = context.vfork;
context.vfork = false;
context.waitpid.notify();
(vfork, context.ppid)
};
if vfork {
if let Some(context_lock) = contexts.get(ppid) {
let mut context = context_lock.write();
if context.status == context::Status::Blocked {
context.status = context::Status::Runnable;
} else {
if ! context.unblock() {
println!("{} not blocked for exit vfork unblock", ppid);
}
} else {
@ -622,9 +620,7 @@ pub fn exec(path: &[u8], arg_ptrs: &[[usize; 2]]) -> Result<usize> {
if vfork {
if let Some(context_lock) = contexts.get(ppid) {
let mut context = context_lock.write();
if context.status == context::Status::Blocked {
context.status = context::Status::Runnable;
} else {
if ! context.unblock() {
println!("{} not blocked for exec vfork unblock", ppid);
}
} else {
@ -808,7 +804,7 @@ pub fn waitpid(pid: usize, status_ptr: usize, flags: usize) -> Result<usize> {
loop {
{
let mut exited = false;
let waitpid;
{
let contexts = context::contexts();
let context_lock = contexts.get(pid).ok_or(Error::new(ESRCH))?;
@ -820,6 +816,7 @@ pub fn waitpid(pid: usize, status_ptr: usize, flags: usize) -> Result<usize> {
}
exited = true;
}
waitpid = context.waitpid.clone();
}
if exited {
@ -827,6 +824,8 @@ pub fn waitpid(pid: usize, status_ptr: usize, flags: usize) -> Result<usize> {
return contexts.remove(pid).ok_or(Error::new(ESRCH)).and(Ok(pid));
} else if flags & WNOHANG == WNOHANG {
return Ok(0);
} else {
waitpid.wait();
}
}

15
kernel/syscall/time.rs
View file

@ -27,16 +27,19 @@ pub fn nanosleep(req: &TimeSpec, rem_opt: Option<&mut TimeSpec>) -> Result<usize
let sum = start.1 + req.tv_nsec as u64;
let end = (start.0 + req.tv_sec as u64 + sum / 1000000000, sum % 1000000000);
loop {
unsafe { context::switch(); }
{
let contexts = context::contexts();
let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
let mut context = context_lock.write();
let current = arch::time::monotonic();
if current.0 > end.0 || (current.0 == end.0 && current.1 >= end.1) {
break;
}
context.wake = Some(end);
context.block();
}
unsafe { context::switch(); }
if let Some(mut rem) = rem_opt {
//TODO let current = arch::time::monotonic();
rem.tv_sec = 0;
rem.tv_nsec = 0;
}

2
libstd

@ -1 +1 @@
Subproject commit 07d687dedcb9a8d76830fd54f6b992cbc3e49aa4
Subproject commit 89b6a739be426e6ff6e401f6495e7022a90f4d42

1
programs/netutils Submodule

@ -0,0 +1 @@
Subproject commit 25c136612217ade85a0ca64ddfe3f95e5086b593

1
programs/orbutils Submodule

@ -0,0 +1 @@
Subproject commit 7e7d2ada724c48b01a69ba72b105392557fa634c

7
schemes/ethernetd/Cargo.toml Normal file
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[package]
name = "ethernetd"
version = "0.1.0"
[dependencies]
resource_scheme = { path = "../../crates/resource_scheme/" }
syscall = { path = "../../syscall/" }

105
schemes/ethernetd/src/common.rs Normal file
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use std::{mem, slice, u8, u16};
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
#[repr(packed)]
pub struct n16(u16);
impl n16 {
pub fn new(value: u16) -> Self {
n16(value.to_be())
}
pub fn get(&self) -> u16 {
u16::from_be(self.0)
}
pub fn set(&mut self, value: u16) {
self.0 = value.to_be();
}
}
#[derive(Copy, Clone)]
pub struct MacAddr {
pub bytes: [u8; 6],
}
impl MacAddr {
pub fn equals(&self, other: Self) -> bool {
for i in 0..6 {
if self.bytes[i] != other.bytes[i] {
return false;
}
}
true
}
pub fn from_str(string: &str) -> Self {
let mut addr = MacAddr { bytes: [0, 0, 0, 0, 0, 0] };
let mut i = 0;
for part in string.split('.') {
let octet = u8::from_str_radix(part, 16).unwrap_or(0);
match i {
0 => addr.bytes[0] = octet,
1 => addr.bytes[1] = octet,
2 => addr.bytes[2] = octet,
3 => addr.bytes[3] = octet,
4 => addr.bytes[4] = octet,
5 => addr.bytes[5] = octet,
_ => break,
}
i += 1;
}
addr
}
pub fn to_string(&self) -> String {
let mut string = String::new();
for i in 0..6 {
if i > 0 {
string.push('.');
}
string.push_str(&format!("{:X}", self.bytes[i]));
}
string
}
}
#[derive(Copy, Clone)]
#[repr(packed)]
pub struct EthernetIIHeader {
pub dst: MacAddr,
pub src: MacAddr,
pub ethertype: n16,
}
pub struct EthernetII {
pub header: EthernetIIHeader,
pub data: Vec<u8>,
}
impl EthernetII {
pub fn from_bytes(bytes: &[u8]) -> Option<Self> {
if bytes.len() >= mem::size_of::<EthernetIIHeader>() {
unsafe {
return Some(EthernetII {
header: *(bytes.as_ptr() as *const EthernetIIHeader),
data: bytes[mem::size_of::<EthernetIIHeader>() ..].to_vec(),
});
}
}
None
}
pub fn to_bytes(&self) -> Vec<u8> {
unsafe {
let header_ptr: *const EthernetIIHeader = &self.header;
let mut ret = Vec::from(slice::from_raw_parts(header_ptr as *const u8,
mem::size_of::<EthernetIIHeader>()));
ret.extend_from_slice(&self.data);
ret
}
}
}

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schemes/ethernetd/src/main.rs Normal file
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extern crate resource_scheme;
extern crate syscall;
use std::fs::File;
use std::io::{Read, Write};
use std::thread;
use resource_scheme::ResourceScheme;
use syscall::Packet;
use scheme::EthernetScheme;
pub mod common;
pub mod resource;
pub mod scheme;
fn main() {
thread::spawn(move || {
let mut socket = File::create(":ethernet").expect("ethernetd: failed to create ethernet scheme");
let scheme = EthernetScheme;
loop {
let mut packet = Packet::default();
socket.read(&mut packet).expect("ethernetd: failed to read events from ethernet scheme");
scheme.handle(&mut packet);
socket.write(&packet).expect("ethernetd: failed to write responses to ethernet scheme");
}
});
}

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schemes/ethernetd/src/resource.rs Normal file
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use std::{cmp, mem};
use resource_scheme::Resource;
use syscall;
use syscall::error::*;
use common::{n16, MacAddr, EthernetIIHeader, EthernetII};
/// A ethernet resource
pub struct EthernetResource {
/// The network
pub network: usize,
/// The data
pub data: Vec<u8>,
/// The MAC addresss
pub peer_addr: MacAddr,
/// The ethernet type
pub ethertype: u16,
}
impl Resource for EthernetResource {
fn dup(&self) -> Result<Box<Self>> {
let network = try!(syscall::dup(self.network));
Ok(Box::new(EthernetResource {
network: network,
data: self.data.clone(),
peer_addr: self.peer_addr,
ethertype: self.ethertype,
}))
}
fn path(&self, buf: &mut [u8]) -> Result<usize> {
let path_string = format!("ethernet:{}/{:X}", self.peer_addr.to_string(), self.ethertype);
let path = path_string.as_bytes();
for (b, p) in buf.iter_mut().zip(path.iter()) {
*b = *p;
}
Ok(cmp::min(buf.len(), path.len()))
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if !self.data.is_empty() {
let mut data: Vec<u8> = Vec::new();
mem::swap(&mut self.data, &mut data);
for (b, d) in buf.iter_mut().zip(data.iter()) {
*b = *d;
}
return Ok(cmp::min(buf.len(), data.len()));
}
let mut bytes = [0; 65536];
let count = try!(syscall::read(self.network, &mut bytes));
if let Some(frame) = EthernetII::from_bytes(&bytes[..count]) {
if frame.header.ethertype.get() == self.ethertype {
for (b, d) in buf.iter_mut().zip(frame.data.iter()) {
*b = *d;
}
return Ok(cmp::min(buf.len(), frame.data.len()));
}
}
Ok(0)
}
fn write(&mut self, buf: &[u8]) -> Result<usize> {
let data = Vec::from(buf);
match syscall::write(self.network, &EthernetII {
header: EthernetIIHeader {
src: MacAddr { bytes: [0x50, 0x51, 0x52, 0x53, 0x54, 0x55] },
dst: self.peer_addr,
ethertype: n16::new(self.ethertype),
},
data: data,
}
.to_bytes()) {
Ok(_) => Ok(buf.len()),
Err(err) => Err(err),
}
}
fn sync(&mut self) -> Result<usize> {
syscall::fsync(self.network)
}
}
impl Drop for EthernetResource {
fn drop(&mut self) {
let _ = syscall::close(self.network);
}
}

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schemes/ethernetd/src/scheme.rs Normal file
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use std::{str, u16};
use resource_scheme::ResourceScheme;
use syscall;
use syscall::error::{Error, Result, EACCES, ENOENT, EINVAL};
use syscall::flag::O_RDWR;
use common::{MacAddr, EthernetII};
use resource::EthernetResource;
pub struct EthernetScheme;
impl ResourceScheme<EthernetResource> for EthernetScheme {
fn open_resource(&self, url: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<Box<EthernetResource>> {
if uid == 0 {
let path = try!(str::from_utf8(url).or(Err(Error::new(EINVAL))));
let mut parts = path.split("/");
if let Some(host_string) = parts.next() {
if let Some(ethertype_string) = parts.next() {
if let Ok(network) = syscall::open("network:", O_RDWR) {
let ethertype = u16::from_str_radix(ethertype_string, 16).unwrap_or(0) as u16;
if !host_string.is_empty() {
return Ok(Box::new(EthernetResource {
network: network,
data: Vec::new(),
peer_addr: MacAddr::from_str(host_string),
ethertype: ethertype,
}));
} else {
loop {
let mut bytes = [0; 65536];
match syscall::read(network, &mut bytes) {
Ok(count) => {
if let Some(frame) = EthernetII::from_bytes(&bytes[..count]) {
if frame.header.ethertype.get() == ethertype {
return Ok(Box::new(EthernetResource {
network: network,
data: frame.data,
peer_addr: frame.header.src,
ethertype: ethertype,
}));
}
}
}
Err(_) => break,
}
}
}
} else {
println!("Ethernet: Failed to open network:");
}
} else {
println!("Ethernet: No ethertype provided");
}
} else {
println!("Ethernet: No host provided");
}
Err(Error::new(ENOENT))
} else {
Err(Error::new(EACCES))
}
}
}

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schemes/ipd/Cargo.toml Normal file
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[package]
name = "ipd"
version = "0.1.0"
[dependencies]
resource_scheme = { path = "../../crates/resource_scheme/" }
syscall = { path = "../../syscall/" }

275
schemes/ipd/src/common.rs Normal file
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use std::{mem, slice, u8, u16};
pub static mut MAC_ADDR: MacAddr = MacAddr { bytes: [0x50, 0x51, 0x52, 0x53, 0x54, 0x55] };
pub static BROADCAST_MAC_ADDR: MacAddr = MacAddr { bytes: [0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF] };
pub static mut IP_ADDR: Ipv4Addr = Ipv4Addr { bytes: [10, 0, 2, 15] };
pub static mut IP_ROUTER_ADDR: Ipv4Addr = Ipv4Addr { bytes: [10, 0, 2, 2] };
pub static mut IP_SUBNET: Ipv4Addr = Ipv4Addr { bytes: [255, 255, 255, 0] };
pub static BROADCAST_IP_ADDR: Ipv4Addr = Ipv4Addr { bytes: [255, 255, 255, 255] };
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
#[repr(packed)]
pub struct n16(u16);
impl n16 {
pub fn new(value: u16) -> Self {
n16(value.to_be())
}
pub fn get(&self) -> u16 {
u16::from_be(self.0)
}
pub fn set(&mut self, value: u16) {
self.0 = value.to_be();
}
}
#[derive(Copy, Clone)]
pub struct MacAddr {
pub bytes: [u8; 6],
}
impl MacAddr {
pub fn equals(&self, other: Self) -> bool {
for i in 0..6 {
if self.bytes[i] != other.bytes[i] {
return false;
}
}
true
}
pub fn from_str(string: &str) -> Self {
let mut addr = MacAddr { bytes: [0, 0, 0, 0, 0, 0] };
let mut i = 0;
for part in string.split('.') {
let octet = u8::from_str_radix(part, 16).unwrap_or(0);
match i {
0 => addr.bytes[0] = octet,
1 => addr.bytes[1] = octet,
2 => addr.bytes[2] = octet,
3 => addr.bytes[3] = octet,
4 => addr.bytes[4] = octet,
5 => addr.bytes[5] = octet,
_ => break,
}
i += 1;
}
addr
}
pub fn to_string(&self) -> String {
let mut string = String::new();
for i in 0..6 {
if i > 0 {
string.push('.');
}
string.push_str(&format!("{:X}", self.bytes[i]));
}
string
}
}
#[derive(Copy, Clone)]
pub struct Ipv4Addr {
pub bytes: [u8; 4],
}
impl Ipv4Addr {
pub fn equals(&self, other: Self) -> bool {
for i in 0..4 {
if self.bytes[i] != other.bytes[i] {
return false;
}
}
true
}
pub fn from_str(string: &str) -> Self {
let mut addr = Ipv4Addr { bytes: [0, 0, 0, 0] };
let mut i = 0;
for part in string.split('.') {
let octet = part.parse::<u8>().unwrap_or(0);
match i {
0 => addr.bytes[0] = octet,
1 => addr.bytes[1] = octet,
2 => addr.bytes[2] = octet,
3 => addr.bytes[3] = octet,
_ => break,
}
i += 1;
}
addr
}
pub fn to_string(&self) -> String {
let mut string = String::new();
for i in 0..4 {
if i > 0 {
string = string + ".";
}
string = string + &format!("{}", self.bytes[i]);
}
string
}
}
#[derive(Copy, Clone)]
pub struct Checksum {
pub data: u16,
}
impl Checksum {
pub unsafe fn check(&self, mut ptr: usize, mut len: usize) -> bool {
let mut sum: usize = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
sum == 0xFFFF
}
pub unsafe fn calculate(&mut self, ptr: usize, len: usize) {
self.data = 0;
let sum = Checksum::sum(ptr, len);
self.data = Checksum::compile(sum);
}
pub unsafe fn sum(mut ptr: usize, mut len: usize) -> usize {
let mut sum = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
sum
}
pub fn compile(mut sum: usize) -> u16 {
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
0xFFFF - (sum as u16)
}
}
#[derive(Copy, Clone)]
#[repr(packed)]
pub struct ArpHeader {
pub htype: n16,
pub ptype: n16,
pub hlen: u8,
pub plen: u8,
pub oper: n16,
pub src_mac: MacAddr,
pub src_ip: Ipv4Addr,
pub dst_mac: MacAddr,
pub dst_ip: Ipv4Addr,
}
pub struct Arp {
pub header: ArpHeader,
pub data: Vec<u8>,
}
impl Arp {
pub fn from_bytes(bytes: &[u8]) -> Option<Self> {
if bytes.len() >= mem::size_of::<ArpHeader>() {
unsafe {
return Some(Arp {
header: *(bytes.as_ptr() as *const ArpHeader),
data: bytes[mem::size_of::<ArpHeader>() ..].to_vec(),
});
}
}
None
}
pub fn to_bytes(&self) -> Vec<u8> {
unsafe {
let header_ptr: *const ArpHeader = &self.header;
let mut ret = Vec::from(slice::from_raw_parts(header_ptr as *const u8,
mem::size_of::<ArpHeader>()));
ret.extend_from_slice(&self.data);
ret
}
}
}
#[derive(Copy, Clone)]
#[repr(packed)]
pub struct Ipv4Header {
pub ver_hlen: u8,
pub services: u8,
pub len: n16,
pub id: n16,
pub flags_fragment: n16,
pub ttl: u8,
pub proto: u8,
pub checksum: Checksum,
pub src: Ipv4Addr,
pub dst: Ipv4Addr,
}
pub struct Ipv4 {
pub header: Ipv4Header,
pub options: Vec<u8>,
pub data: Vec<u8>,
}
impl Ipv4 {
pub fn from_bytes(bytes: &[u8]) -> Option<Self> {
if bytes.len() >= mem::size_of::<Ipv4Header>() {
unsafe {
let header = *(bytes.as_ptr() as *const Ipv4Header);
let header_len = ((header.ver_hlen & 0xF) << 2) as usize;
return Some(Ipv4 {
header: header,
options: bytes[mem::size_of::<Ipv4Header>() .. header_len].to_vec(),
data: bytes[header_len .. header.len.get() as usize].to_vec(),
});
}
}
None
}
pub fn to_bytes(&self) -> Vec<u8> {
unsafe {
let header_ptr: *const Ipv4Header = &self.header;
let mut ret = Vec::<u8>::from(slice::from_raw_parts(header_ptr as *const u8,
mem::size_of::<Ipv4Header>()));
ret.extend_from_slice(&self.options);
ret.extend_from_slice(&self.data);
ret
}
}
}

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#![feature(rand)]
extern crate resource_scheme;
extern crate syscall;
use std::fs::File;
use std::io::{Read, Write};
use std::thread;
use resource_scheme::ResourceScheme;
use syscall::Packet;
use scheme::IpScheme;
pub mod common;
pub mod resource;
pub mod scheme;
fn main() {
thread::spawn(move || {
let mut socket = File::create(":ip").expect("ipd: failed to create ip scheme");
let scheme = IpScheme::new();
loop {
let mut packet = Packet::default();
socket.read(&mut packet).expect("ipd: failed to read events from ip scheme");
scheme.handle(&mut packet);
socket.write(&packet).expect("ipd: failed to write responses to ip scheme");
}
});
}

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schemes/ipd/src/resource.rs Normal file
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use std::{cmp, mem};
use resource_scheme::Resource;
use syscall;
use syscall::error::*;
use common::{n16, Ipv4Addr, Checksum, Ipv4Header, Ipv4, IP_ADDR, BROADCAST_IP_ADDR};
/// A IP (internet protocole) resource
pub struct IpResource {
pub link: usize,
pub data: Vec<u8>,
pub peer_addr: Ipv4Addr,
pub proto: u8,
pub id: u16,
}
impl Resource for IpResource {
fn dup(&self) -> Result<Box<Self>> {
let link = try!(syscall::dup(self.link));
Ok(Box::new(IpResource {
link: link,
data: self.data.clone(),
peer_addr: self.peer_addr,
proto: self.proto,
id: self.id,
}))
}
fn path(&self, buf: &mut [u8]) -> Result<usize> {
let path_string = format!("ip:{}/{:X}", self.peer_addr.to_string(), self.proto);
let path = path_string.as_bytes();
for (b, p) in buf.iter_mut().zip(path.iter()) {
*b = *p;
}
Ok(cmp::min(buf.len(), path.len()))
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if !self.data.is_empty() {
let mut data: Vec<u8> = Vec::new();
mem::swap(&mut self.data, &mut data);
for (b, d) in buf.iter_mut().zip(data.iter()) {
*b = *d;
}
return Ok(cmp::min(buf.len(), data.len()));
}
let mut bytes = [0; 65536];
let count = try!(syscall::read(self.link, &mut bytes));
if let Some(packet) = Ipv4::from_bytes(&bytes[..count]) {
if packet.header.proto == self.proto &&
(packet.header.dst.equals(unsafe { IP_ADDR }) || packet.header.dst.equals(BROADCAST_IP_ADDR)) &&
(packet.header.src.equals(self.peer_addr) || self.peer_addr.equals(BROADCAST_IP_ADDR)) {
for (b, d) in buf.iter_mut().zip(packet.data.iter()) {
*b = *d;
}
return Ok(cmp::min(buf.len(), packet.data.len()));
}
}
Ok(0)
}
fn write(&mut self, buf: &[u8]) -> Result<usize> {
let ip_data = Vec::from(buf);
self.id += 1;
let mut ip = Ipv4 {
header: Ipv4Header {
ver_hlen: 0x40 | (mem::size_of::<Ipv4Header>() / 4 & 0xF) as u8, // No Options
services: 0,
len: n16::new((mem::size_of::<Ipv4Header>() + ip_data.len()) as u16), // No Options
id: n16::new(self.id),
flags_fragment: n16::new(0),
ttl: 128,
proto: self.proto,
checksum: Checksum { data: 0 },
src: unsafe { IP_ADDR },
dst: self.peer_addr,
},
options: Vec::new(),
data: ip_data,
};
unsafe {
let header_ptr: *const Ipv4Header = &ip.header;
ip.header.checksum.data =
Checksum::compile(Checksum::sum(header_ptr as usize, mem::size_of::<Ipv4Header>()) +
Checksum::sum(ip.options.as_ptr() as usize, ip.options.len()));
}
match syscall::write(self.link, &ip.to_bytes()) {
Ok(_) => Ok(buf.len()),
Err(err) => Err(err),
}
}
fn sync(&mut self) -> Result<usize> {
syscall::fsync(self.link)
}
}
impl Drop for IpResource {
fn drop(&mut self) {
let _ = syscall::close(self.link);
}
}

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use std::cell::RefCell;
use std::rand;
use std::{str, u16};
use resource_scheme::ResourceScheme;
use syscall;
use syscall::error::{Error, Result, EACCES, ENOENT, EINVAL};
use syscall::flag::O_RDWR;
use common::{n16, MacAddr, Ipv4Addr, ArpHeader, Arp, Ipv4, MAC_ADDR, BROADCAST_MAC_ADDR, BROADCAST_IP_ADDR, IP_ADDR, IP_ROUTER_ADDR, IP_SUBNET};
use resource::IpResource;
/// A ARP entry (MAC + IP)
pub struct ArpEntry {
ip: Ipv4Addr,
mac: MacAddr,
}
/// A IP scheme
pub struct IpScheme {
pub arp: RefCell<Vec<ArpEntry>>,
}
impl IpScheme {
pub fn new() -> IpScheme {
IpScheme {
arp: RefCell::new(Vec::new())
}
}
}
impl ResourceScheme<IpResource> for IpScheme {
fn open_resource(&self, url: &[u8], _flags: usize, uid: u32, _gid: u32) -> Result<Box<IpResource>> {
if uid == 0 {
let path = try!(str::from_utf8(url).or(Err(Error::new(EINVAL))));
let mut parts = path.split('/');
if let Some(host_string) = parts.next() {
if let Some(proto_string) = parts.next() {
let proto = u8::from_str_radix(proto_string, 16).unwrap_or(0);
if ! host_string.is_empty() {
let peer_addr = Ipv4Addr::from_str(host_string);
let mut route_mac = BROADCAST_MAC_ADDR;
if ! peer_addr.equals(BROADCAST_IP_ADDR) {
let mut needs_routing = false;
for octet in 0..4 {
let me = unsafe { IP_ADDR.bytes[octet] };
let mask = unsafe { IP_SUBNET.bytes[octet] };
let them = peer_addr.bytes[octet];
if me & mask != them & mask {
needs_routing = true;
break;
}
}
let route_addr = if needs_routing {
unsafe { IP_ROUTER_ADDR }
} else {
peer_addr
};
for entry in self.arp.borrow().iter() {
if entry.ip.equals(route_addr) {
route_mac = entry.mac;
break;
}
}
if route_mac.equals(BROADCAST_MAC_ADDR) {
if let Ok(link) = syscall::open(&format!("ethernet:{}/806", &route_mac.to_string()), O_RDWR) {
let arp = Arp {
header: ArpHeader {
htype: n16::new(1),
ptype: n16::new(0x800),
hlen: 6,
plen: 4,
oper: n16::new(1),
src_mac: unsafe { MAC_ADDR },
src_ip: unsafe { IP_ADDR },
dst_mac: route_mac,
dst_ip: route_addr,
},
data: Vec::new(),
};
match syscall::write(link, &arp.to_bytes()) {
Ok(_) => loop {
let mut bytes = [0; 65536];
match syscall::read(link, &mut bytes) {
Ok(count) => if let Some(packet) = Arp::from_bytes(&bytes[..count]) {
if packet.header.oper.get() == 2 &&
packet.header.src_ip.equals(route_addr) {
route_mac = packet.header.src_mac;
self.arp.borrow_mut().push(ArpEntry {
ip: route_addr,
mac: route_mac,
});
break;
}
},
Err(_) => (),
}
},
Err(err) => println!("IP: ARP Write Failed: {}", err),
}
}
}
}
if let Ok(link) = syscall::open(&format!("ethernet:{}/800", &route_mac.to_string()), O_RDWR) {
return Ok(Box::new(IpResource {
link: link,
data: Vec::new(),
peer_addr: peer_addr,
proto: proto,
id: (rand() % 65536) as u16,
}));
}
} else {
while let Ok(link) = syscall::open("ethernet:/800", O_RDWR) {
let mut bytes = [0; 65536];
match syscall::read(link, &mut bytes) {
Ok(count) => {
if let Some(packet) = Ipv4::from_bytes(&bytes[..count]) {
if packet.header.proto == proto &&
(packet.header.dst.equals(unsafe { IP_ADDR }) || packet.header.dst.equals(BROADCAST_IP_ADDR)) {
return Ok(Box::new(IpResource {
link: link,
data: packet.data,
peer_addr: packet.header.src,
proto: proto,
id: (rand() % 65536) as u16,
}));
}
}
}
Err(_) => break,
}
}
}
} else {
println!("IP: No protocol provided");
}
} else {
println!("IP: No host provided");
}
Err(Error::new(ENOENT))
} else {
Err(Error::new(EACCES))
}
}
}

1
schemes/orbital Submodule

@ -0,0 +1 @@
Subproject commit 3667b8960255928363b88ac9ac5902f228823512

7
schemes/tcpd/Cargo.toml Normal file
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[package]
name = "tcpd"
version = "0.1.0"
[dependencies]
resource_scheme = { path = "../../crates/resource_scheme/" }
syscall = { path = "../../syscall/" }

217
schemes/tcpd/src/common.rs Normal file
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use std::{mem, slice, u8, u16, u32};
pub static mut IP_ADDR: Ipv4Addr = Ipv4Addr { bytes: [10, 0, 2, 15] };
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
#[repr(packed)]
pub struct n16(u16);
impl n16 {
pub fn new(value: u16) -> Self {
n16(value.to_be())
}
pub fn get(&self) -> u16 {
u16::from_be(self.0)
}
pub fn set(&mut self, value: u16) {
self.0 = value.to_be();
}
}
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
#[repr(packed)]
pub struct n32(u32);
impl n32 {
pub fn new(value: u32) -> Self {
n32(value.to_be())
}
pub fn get(&self) -> u32 {
u32::from_be(self.0)
}
pub fn set(&mut self, value: u32) {
self.0 = value.to_be();
}
}
#[derive(Copy, Clone)]
pub struct Ipv4Addr {
pub bytes: [u8; 4],
}
impl Ipv4Addr {
pub fn equals(&self, other: Self) -> bool {
for i in 0..4 {
if self.bytes[i] != other.bytes[i] {
return false;
}
}
true
}
pub fn from_str(string: &str) -> Self {
let mut addr = Ipv4Addr { bytes: [0, 0, 0, 0] };
let mut i = 0;
for part in string.split('.') {
let octet = part.parse::<u8>().unwrap_or(0);
match i {
0 => addr.bytes[0] = octet,
1 => addr.bytes[1] = octet,
2 => addr.bytes[2] = octet,
3 => addr.bytes[3] = octet,
_ => break,
}
i += 1;
}
addr
}
pub fn to_string(&self) -> String {
let mut string = String::new();
for i in 0..4 {
if i > 0 {
string = string + ".";
}
string = string + &format!("{}", self.bytes[i]);
}
string
}
}
#[derive(Copy, Clone)]
pub struct Checksum {
pub data: u16,
}
impl Checksum {
pub unsafe fn check(&self, mut ptr: usize, mut len: usize) -> bool {
let mut sum: usize = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
sum == 0xFFFF
}
pub unsafe fn calculate(&mut self, ptr: usize, len: usize) {
self.data = 0;
let sum = Checksum::sum(ptr, len);
self.data = Checksum::compile(sum);
}
pub unsafe fn sum(mut ptr: usize, mut len: usize) -> usize {
let mut sum = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
sum
}
pub fn compile(mut sum: usize) -> u16 {
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
0xFFFF - (sum as u16)
}
}
pub const TCP_FIN: u16 = 1;
pub const TCP_SYN: u16 = 1 << 1;
pub const TCP_RST: u16 = 1 << 2;
pub const TCP_PSH: u16 = 1 << 3;
pub const TCP_ACK: u16 = 1 << 4;
#[derive(Copy, Clone)]
#[repr(packed)]
pub struct TcpHeader {
pub src: n16,
pub dst: n16,
pub sequence: n32,
pub ack_num: n32,
pub flags: n16,
pub window_size: n16,
pub checksum: Checksum,
pub urgent_pointer: n16,
}
pub struct Tcp {
pub header: TcpHeader,
pub options: Vec<u8>,
pub data: Vec<u8>,
}
impl Tcp {
pub fn checksum(&mut self, src_addr: &Ipv4Addr, dst_addr: &Ipv4Addr) {
self.header.checksum.data = 0;
let proto = n16::new(0x06);
let segment_len = n16::new((mem::size_of::<TcpHeader>() + self.options.len() + self.data.len()) as u16);
self.header.checksum.data = Checksum::compile(unsafe {
Checksum::sum(src_addr.bytes.as_ptr() as usize, src_addr.bytes.len()) +
Checksum::sum(dst_addr.bytes.as_ptr() as usize, dst_addr.bytes.len()) +
Checksum::sum((&proto as *const n16) as usize, mem::size_of::<n16>()) +
Checksum::sum((&segment_len as *const n16) as usize, mem::size_of::<n16>()) +
Checksum::sum((&self.header as *const TcpHeader) as usize, mem::size_of::<TcpHeader>()) +
Checksum::sum(self.options.as_ptr() as usize, self.options.len()) +
Checksum::sum(self.data.as_ptr() as usize, self.data.len())
});
}
pub fn from_bytes(bytes: &[u8]) -> Option<Self> {
if bytes.len() >= mem::size_of::<TcpHeader>() {
unsafe {
let header = *(bytes.as_ptr() as *const TcpHeader);
let header_len = ((header.flags.get() & 0xF000) >> 10) as usize;
return Some(Tcp {
header: header,
options: bytes[mem::size_of::<TcpHeader>()..header_len].to_vec(),
data: bytes[header_len..bytes.len()].to_vec(),
});
}
}
None
}
pub fn to_bytes(&self) -> Vec<u8> {
unsafe {
let header_ptr: *const TcpHeader = &self.header;
let mut ret = Vec::from(slice::from_raw_parts(header_ptr as *const u8,
mem::size_of::<TcpHeader>()));
ret.extend_from_slice(&self.options);
ret.extend_from_slice(&self.data);
ret
}
}
}

30
schemes/tcpd/src/main.rs Normal file
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#![feature(rand)]
extern crate resource_scheme;
extern crate syscall;
use std::fs::File;
use std::io::{Read, Write};
use std::thread;
use resource_scheme::ResourceScheme;
use syscall::Packet;
use scheme::TcpScheme;
pub mod common;
pub mod resource;
pub mod scheme;
fn main() {
thread::spawn(move || {
let mut socket = File::create(":tcp").expect("tcpd: failed to create tcp scheme");
let scheme = TcpScheme;
loop {
let mut packet = Packet::default();
socket.read(&mut packet).expect("tcpd: failed to read events from tcp scheme");
scheme.handle(&mut packet);
socket.write(&packet).expect("tcpd: failed to write responses to tcp scheme");
}
});
}

328
schemes/tcpd/src/resource.rs Normal file
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use std::{cmp, mem};
use std::cell::UnsafeCell;
use std::sync::Arc;
use resource_scheme::Resource;
use syscall;
use syscall::error::*;
use common::{n16, n32, Ipv4Addr, Checksum, IP_ADDR, Tcp, TcpHeader, TCP_SYN, TCP_PSH, TCP_FIN, TCP_ACK};
pub struct TcpStream {
pub ip: usize,
pub peer_addr: Ipv4Addr,
pub peer_port: u16,
pub host_port: u16,
pub sequence: u32,
pub acknowledge: u32,
pub finished: bool
}
impl TcpStream {
fn path(&self, buf: &mut [u8]) -> Result<usize> {
let path_string = format!("tcp:{}:{}/{}", self.peer_addr.to_string(), self.peer_port, self.host_port);
let path = path_string.as_bytes();
for (b, p) in buf.iter_mut().zip(path.iter()) {
*b = *p;
}
Ok(cmp::min(buf.len(), path.len()))
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if self.finished {
return Ok(0);
}
loop {
let mut bytes = [0; 65536];
let count = try!(syscall::read(self.ip, &mut bytes));
if let Some(segment) = Tcp::from_bytes(&bytes[..count]) {
if segment.header.dst.get() == self.host_port && segment.header.src.get() == self.peer_port {
//println!("Read: {}=={} {:X}: {}", segment.header.sequence.get(), self.acknowledge, segment.header.flags.get(), segment.data.len());
if self.acknowledge == segment.header.sequence.get() {
if segment.header.flags.get() & TCP_FIN == TCP_FIN {
self.finished = true;
}
if segment.header.flags.get() & (TCP_SYN | TCP_ACK) == TCP_ACK {
let flags = if self.finished {
TCP_ACK | TCP_FIN
} else {
TCP_ACK
};
// Send ACK
self.acknowledge += segment.data.len() as u32;
let mut tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new(((mem::size_of::<TcpHeader>() << 10) & 0xF000) as u16 | flags),
window_size: n16::new(65535),
checksum: Checksum {
data: 0
},
urgent_pointer: n16::new(0)
},
options: Vec::new(),
data: Vec::new()
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
//println!("Sending read ack: {} {} {:X}", tcp.header.sequence.get(), tcp.header.ack_num.get(), tcp.header.flags.get());
let _ = syscall::write(self.ip, &tcp.to_bytes());
// TODO: Support broken packets (one packet in two buffers)
let mut i = 0;
while i < buf.len() && i < segment.data.len() {
buf[i] = segment.data[i];
i += 1;
}
return Ok(i);
}
} else {
println!("TCP: MISMATCH: {}=={}", segment.header.sequence.get(), self.acknowledge);
}
} else {
println!("TCP: WRONG PORT {}=={} && {}=={}", segment.header.dst.get(), self.host_port, segment.header.src.get(), self.peer_port);
}
}
}
}
fn write(&mut self, buf: &[u8]) -> Result<usize> {
let tcp_data = Vec::from(buf);
let mut tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new((((mem::size_of::<TcpHeader>()) << 10) & 0xF000) as u16 | TCP_PSH |
TCP_ACK),
window_size: n16::new(65535),
checksum: Checksum { data: 0 },
urgent_pointer: n16::new(0),
},
options: Vec::new(),
data: tcp_data,
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
match syscall::write(self.ip, &tcp.to_bytes()) {
Ok(size) => {
loop {
// Wait for ACK
let mut bytes = [0; 65536];
match syscall::read(self.ip, &mut bytes) {
Ok(count) => {
if let Some(segment) = Tcp::from_bytes(&bytes[..count]) {
if segment.header.dst.get() == self.host_port &&
segment.header.src.get() == self.peer_port {
return if (segment.header.flags.get() & (TCP_SYN | TCP_ACK)) == TCP_ACK {
self.sequence = segment.header.ack_num.get();
self.acknowledge = segment.header.sequence.get();
Ok(size)
} else {
Err(Error::new(EPIPE))
};
}
}
}
Err(err) => return Err(err),
}
}
}
Err(err) => Err(err),
}
}
fn sync(&mut self) -> Result<usize> {
syscall::fsync(self.ip)
}
/// Etablish client
pub fn client_establish(&mut self) -> bool {
// Send SYN
let mut tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new(((mem::size_of::<TcpHeader>() << 10) & 0xF000) as u16 | TCP_SYN),
window_size: n16::new(65535),
checksum: Checksum { data: 0 },
urgent_pointer: n16::new(0),
},
options: Vec::new(),
data: Vec::new(),
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
match syscall::write(self.ip, &tcp.to_bytes()) {
Ok(_) => {
loop {
// Wait for SYN-ACK
let mut bytes = [0; 65536];
match syscall::read(self.ip, &mut bytes) {
Ok(count) => {
if let Some(segment) = Tcp::from_bytes(&bytes[..count]) {
if segment.header.dst.get() == self.host_port &&
segment.header.src.get() == self.peer_port {
return if segment.header.flags.get() & (TCP_SYN | TCP_ACK) == TCP_SYN | TCP_ACK {
self.sequence = segment.header.ack_num.get();
self.acknowledge = segment.header.sequence.get();
self.acknowledge += 1;
tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new(((mem::size_of::<TcpHeader>() << 10) & 0xF000) as u16 | TCP_ACK),
window_size: n16::new(65535),
checksum: Checksum {
data: 0
},
urgent_pointer: n16::new(0)
},
options: Vec::new(),
data: Vec::new()
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
let _ = syscall::write(self.ip, &tcp.to_bytes());
true
} else {
false
};
}
}
}
Err(_) => return false,
}
}
}
Err(_) => false,
}
}
/// Try to establish a server connection
pub fn server_establish(&mut self, _: Tcp) -> bool {
// Send SYN-ACK
self.acknowledge += 1;
let mut tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new(((mem::size_of::<TcpHeader>() << 10) & 0xF000) as u16 | TCP_SYN |
TCP_ACK),
window_size: n16::new(65535),
checksum: Checksum { data: 0 },
urgent_pointer: n16::new(0),
},
options: Vec::new(),
data: Vec::new(),
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
match syscall::write(self.ip, &tcp.to_bytes()) {
Ok(_) => {
loop {
// Wait for ACK
let mut bytes = [0; 65536];
match syscall::read(self.ip, &mut bytes) {
Ok(count ) => {
if let Some(segment) = Tcp::from_bytes(&bytes[..count]) {
if segment.header.dst.get() == self.host_port &&
segment.header.src.get() == self.peer_port {
return if segment.header.flags.get() & (TCP_SYN | TCP_ACK) == TCP_ACK {
self.sequence = segment.header.ack_num.get();
self.acknowledge = segment.header.sequence.get();
true
} else {
false
};
}
}
}
Err(_) => return false,
}
}
}
Err(_) => false,
}
}
}
impl Drop for TcpStream {
fn drop(&mut self) {
// Send FIN-ACK
let mut tcp = Tcp {
header: TcpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
sequence: n32::new(self.sequence),
ack_num: n32::new(self.acknowledge),
flags: n16::new((((mem::size_of::<TcpHeader>()) << 10) & 0xF000) as u16 | TCP_FIN | TCP_ACK),
window_size: n16::new(65535),
checksum: Checksum { data: 0 },
urgent_pointer: n16::new(0),
},
options: Vec::new(),
data: Vec::new(),
};
tcp.checksum(& unsafe { IP_ADDR }, &self.peer_addr);
let _ = syscall::write(self.ip, &tcp.to_bytes());
let _ = syscall::close(self.ip);
}
}
/// A TCP resource
pub struct TcpResource {
pub stream: Arc<UnsafeCell<TcpStream>>
}
impl Resource for TcpResource {
fn dup(&self) -> Result<Box<TcpResource>> {
Ok(Box::new(TcpResource {
stream: self.stream.clone()
}))
}
fn path(&self, buf: &mut [u8]) -> Result<usize> {
unsafe { (*self.stream.get()).path(buf) }
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
unsafe { (*self.stream.get()).read(buf) }
}
fn write(&mut self, buf: &[u8]) -> Result<usize> {
unsafe { (*self.stream.get()).write(buf) }
}
fn sync(&mut self) -> Result<usize> {
unsafe { (*self.stream.get()).sync() }
}
}

94
schemes/tcpd/src/scheme.rs Normal file
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use std::cell::UnsafeCell;
use std::rand;
use std::sync::Arc;
use std::{str, u16};
use resource_scheme::ResourceScheme;
use syscall;
use syscall::error::{Error, Result, ENOENT, EINVAL};
use syscall::flag::O_RDWR;
use common::{Ipv4Addr, Tcp, TCP_SYN, TCP_ACK};
use resource::{TcpResource, TcpStream};
/// A TCP scheme
pub struct TcpScheme;
impl ResourceScheme<TcpResource> for TcpScheme {
fn open_resource(&self, url: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<Box<TcpResource>> {
let path = try!(str::from_utf8(url).or(Err(Error::new(EINVAL))));
let mut parts = path.split('/');
let remote = parts.next().unwrap_or("");
let path = parts.next().unwrap_or("");
let mut remote_parts = remote.split(':');
let host = remote_parts.next().unwrap_or("");
let port = remote_parts.next().unwrap_or("");
if ! host.is_empty() && ! port.is_empty() {
let peer_addr = Ipv4Addr::from_str(host);
let peer_port = port.parse::<u16>().unwrap_or(0);
let host_port = (rand() % 32768 + 32768) as u16;
match syscall::open(&format!("ip:{}/6", peer_addr.to_string()), O_RDWR) {
Ok(ip) => {
let mut stream = TcpStream {
ip: ip,
peer_addr: peer_addr,
peer_port: peer_port,
host_port: host_port,
sequence: rand() as u32,
acknowledge: 0,
finished: false
};
if stream.client_establish() {
return Ok(Box::new(TcpResource {
stream: Arc::new(UnsafeCell::new(stream))
}));
}
}
Err(err) => return Err(err),
}
} else if ! path.is_empty() {
let host_port = path.parse::<u16>().unwrap_or(0);
while let Ok(ip) = syscall::open("ip:/6", O_RDWR) {
let mut bytes = [0; 65536];
match syscall::read(ip, &mut bytes) {
Ok(count) => {
if let Some(segment) = Tcp::from_bytes(&bytes[..count]) {
if segment.header.dst.get() == host_port && segment.header.flags.get() & (TCP_SYN | TCP_ACK) == TCP_SYN {
let mut path = [0; 256];
if let Ok(path_count) = syscall::fpath(ip, &mut path) {
let ip_reference = unsafe { str::from_utf8_unchecked(&path[.. path_count]) }.split(':').nth(1).unwrap_or("");
let ip_remote = ip_reference.split('/').next().unwrap_or("");
let peer_addr = ip_remote.split(':').next().unwrap_or("");
let mut stream = TcpStream {
ip: ip,
peer_addr: Ipv4Addr::from_str(peer_addr),
peer_port: segment.header.src.get(),
host_port: host_port,
sequence: rand() as u32,
acknowledge: segment.header.sequence.get(),
finished: false
};
if stream.server_establish(segment) {
return Ok(Box::new(TcpResource {
stream: Arc::new(UnsafeCell::new(stream))
}));
}
}
}
}
}
Err(err) => return Err(err),
}
}
}
Err(Error::new(ENOENT))
}
}

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schemes/udpd/Cargo.toml Normal file
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[package]
name = "udpd"
version = "0.1.0"
[dependencies]
resource_scheme = { path = "../../crates/resource_scheme/" }
syscall = { path = "../../syscall/" }

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schemes/udpd/src/common.rs Normal file
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use std::{mem, slice, u8, u16};
pub static mut IP_ADDR: Ipv4Addr = Ipv4Addr { bytes: [10, 0, 2, 15] };
#[derive(Copy, Clone)]
#[allow(non_camel_case_types)]
#[repr(packed)]
pub struct n16(u16);
impl n16 {
pub fn new(value: u16) -> Self {
n16(value.to_be())
}
pub fn get(&self) -> u16 {
u16::from_be(self.0)
}
pub fn set(&mut self, value: u16) {
self.0 = value.to_be();
}
}
#[derive(Copy, Clone)]
pub struct Ipv4Addr {
pub bytes: [u8; 4],
}
impl Ipv4Addr {
pub fn equals(&self, other: Self) -> bool {
for i in 0..4 {
if self.bytes[i] != other.bytes[i] {
return false;
}
}
true
}
pub fn from_str(string: &str) -> Self {
let mut addr = Ipv4Addr { bytes: [0, 0, 0, 0] };
let mut i = 0;
for part in string.split('.') {
let octet = part.parse::<u8>().unwrap_or(0);
match i {
0 => addr.bytes[0] = octet,
1 => addr.bytes[1] = octet,
2 => addr.bytes[2] = octet,
3 => addr.bytes[3] = octet,
_ => break,
}
i += 1;
}
addr
}
pub fn to_string(&self) -> String {
let mut string = String::new();
for i in 0..4 {
if i > 0 {
string = string + ".";
}
string = string + &format!("{}", self.bytes[i]);
}
string
}
}
#[derive(Copy, Clone)]
pub struct Checksum {
pub data: u16,
}
impl Checksum {
pub unsafe fn check(&self, mut ptr: usize, mut len: usize) -> bool {
let mut sum: usize = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
sum == 0xFFFF
}
pub unsafe fn calculate(&mut self, ptr: usize, len: usize) {
self.data = 0;
let sum = Checksum::sum(ptr, len);
self.data = Checksum::compile(sum);
}
pub unsafe fn sum(mut ptr: usize, mut len: usize) -> usize {
let mut sum = 0;
while len > 1 {
sum += *(ptr as *const u16) as usize;
len -= 2;
ptr += 2;
}
if len > 0 {
sum += *(ptr as *const u8) as usize;
}
sum
}
pub fn compile(mut sum: usize) -> u16 {
while (sum >> 16) > 0 {
sum = (sum & 0xFFFF) + (sum >> 16);
}
0xFFFF - (sum as u16)
}
}
#[derive(Copy, Clone)]
#[repr(packed)]
pub struct UdpHeader {
pub src: n16,
pub dst: n16,
pub len: n16,
pub checksum: Checksum,
}
pub struct Udp {
pub header: UdpHeader,
pub data: Vec<u8>,
}
impl Udp {
pub fn from_bytes(bytes: &[u8]) -> Option<Self> {
if bytes.len() >= mem::size_of::<UdpHeader>() {
unsafe {
Option::Some(Udp {
header: *(bytes.as_ptr() as *const UdpHeader),
data: bytes[mem::size_of::<UdpHeader>()..bytes.len()].to_vec(),
})
}
} else {
Option::None
}
}
pub fn to_bytes(&self) -> Vec<u8> {
unsafe {
let header_ptr: *const UdpHeader = &self.header;
let mut ret = Vec::from(slice::from_raw_parts(header_ptr as *const u8,
mem::size_of::<UdpHeader>()));
ret.extend_from_slice(&self.data);
ret
}
}
}

30
schemes/udpd/src/main.rs Normal file
View file

@ -0,0 +1,30 @@
#![feature(rand)]
extern crate resource_scheme;
extern crate syscall;
use std::fs::File;
use std::io::{Read, Write};
use std::thread;
use resource_scheme::ResourceScheme;
use syscall::Packet;
use scheme::UdpScheme;
pub mod common;
pub mod resource;
pub mod scheme;
fn main() {
thread::spawn(move || {
let mut socket = File::create(":udp").expect("udpd: failed to create udp scheme");
let scheme = UdpScheme;
loop {
let mut packet = Packet::default();
socket.read(&mut packet).expect("udpd: failed to read events from udp scheme");
scheme.handle(&mut packet);
socket.write(&packet).expect("udpd: failed to write responses to udp scheme");
}
});
}

114
schemes/udpd/src/resource.rs Normal file
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@ -0,0 +1,114 @@
use std::{cmp, mem};
use resource_scheme::Resource;
use syscall;
use syscall::error::*;
use common::{n16, Ipv4Addr, Checksum, IP_ADDR, Udp, UdpHeader};
/// UDP resource
pub struct UdpResource {
pub ip: usize,
pub data: Vec<u8>,
pub peer_addr: Ipv4Addr,
pub peer_port: u16,
pub host_port: u16,
}
impl Resource for UdpResource {
fn dup(&self) -> Result<Box<UdpResource>> {
match syscall::dup(self.ip) {
Ok(ip) => {
Ok(Box::new(UdpResource {
ip: ip,
data: self.data.clone(),
peer_addr: self.peer_addr,
peer_port: self.peer_port,
host_port: self.host_port,
}))
}
Err(err) => Err(err),
}
}
fn path(&self, buf: &mut [u8]) -> Result<usize> {
let path_string = format!("udp:{}:{}/{}", self.peer_addr.to_string(), self.peer_port, self.host_port);
let path = path_string.as_bytes();
for (b, p) in buf.iter_mut().zip(path.iter()) {
*b = *p;
}
Ok(cmp::min(buf.len(), path.len()))
}
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
if ! self.data.is_empty() {
let mut bytes: Vec<u8> = Vec::new();
mem::swap(&mut self.data, &mut bytes);
// TODO: Allow splitting
let mut i = 0;
while i < buf.len() && i < bytes.len() {
buf[i] = bytes[i];
i += 1;
}
return Ok(i);
}
loop {
let mut bytes = [0; 65536];
let count = try!(syscall::read(self.ip, &mut bytes));
if let Some(datagram) = Udp::from_bytes(&bytes[..count]) {
if datagram.header.dst.get() == self.host_port &&
datagram.header.src.get() == self.peer_port {
// TODO: Allow splitting
let mut i = 0;
while i < buf.len() && i < datagram.data.len() {
buf[i] = datagram.data[i];
i += 1;
}
return Ok(i);
}
}
}
}
fn write(&mut self, buf: &[u8]) -> Result<usize> {
let mut udp = Udp {
header: UdpHeader {
src: n16::new(self.host_port),
dst: n16::new(self.peer_port),
len: n16::new((mem::size_of::<UdpHeader>() + buf.len()) as u16),
checksum: Checksum { data: 0 },
},
data: Vec::from(buf),
};
unsafe {
let proto = n16::new(0x11);
let datagram_len = n16::new((mem::size_of::<UdpHeader>() + udp.data.len()) as u16);
udp.header.checksum.data =
Checksum::compile(Checksum::sum((&IP_ADDR as *const Ipv4Addr) as usize,
mem::size_of::<Ipv4Addr>()) +
Checksum::sum((&self.peer_addr as *const Ipv4Addr) as usize,
mem::size_of::<Ipv4Addr>()) +
Checksum::sum((&proto as *const n16) as usize,
mem::size_of::<n16>()) +
Checksum::sum((&datagram_len as *const n16) as usize,
mem::size_of::<n16>()) +
Checksum::sum((&udp.header as *const UdpHeader) as usize,
mem::size_of::<UdpHeader>()) +
Checksum::sum(udp.data.as_ptr() as usize, udp.data.len()));
}
syscall::write(self.ip, &udp.to_bytes()).and(Ok(buf.len()))
}
fn sync(&mut self) -> Result<usize> {
syscall::fsync(self.ip)
}
}

69
schemes/udpd/src/scheme.rs Normal file
View file

@ -0,0 +1,69 @@
use std::rand;
use std::{str, u16};
use resource_scheme::ResourceScheme;
use syscall;
use syscall::error::{Error, Result, ENOENT, EINVAL};
use syscall::flag::O_RDWR;
use common::{Ipv4Addr, Udp};
use resource::UdpResource;
/// UDP UdpScheme
pub struct UdpScheme;
impl ResourceScheme<UdpResource> for UdpScheme {
fn open_resource(&self, url: &[u8], _flags: usize, _uid: u32, _gid: u32) -> Result<Box<UdpResource>> {
let path = try!(str::from_utf8(url).or(Err(Error::new(EINVAL))));
let mut parts = path.split('/');
let remote = parts.next().unwrap_or("");
let path = parts.next().unwrap_or("");
// Check host and port vs path
if remote.is_empty() {
let host_port = path.parse::<u16>().unwrap_or(0);
if host_port > 0 {
while let Ok(ip) = syscall::open("ip:/11", O_RDWR) {
let mut bytes = [0; 65536];
if let Ok(count) = syscall::read(ip, &mut bytes) {
if let Some(datagram) = Udp::from_bytes(&bytes[..count]) {
if datagram.header.dst.get() == host_port {
let mut path = [0; 256];
if let Ok(path_count) = syscall::fpath(ip, &mut path) {
let ip_reference = unsafe { str::from_utf8_unchecked(&path[.. path_count]) }.split(':').nth(1).unwrap_or("");
let peer_addr = ip_reference.split('/').next().unwrap_or("").split(':').next().unwrap_or("");
return Ok(Box::new(UdpResource {
ip: ip,
data: datagram.data,
peer_addr: Ipv4Addr::from_str(peer_addr),
peer_port: datagram.header.src.get(),
host_port: host_port,
}));
}
}
}
}
}
}
} else {
let mut remote_parts = remote.split(':');
let peer_addr = remote_parts.next().unwrap_or("");
let peer_port = remote_parts.next().unwrap_or("").parse::<u16>().unwrap_or(0);
if peer_port > 0 {
let host_port = path.parse::<u16>().unwrap_or((rand() % 32768 + 32768) as u16);
if let Ok(ip) = syscall::open(&format!("ip:{}/11", peer_addr), O_RDWR) {
return Ok(Box::new(UdpResource {
ip: ip,
data: Vec::new(),
peer_addr: Ipv4Addr::from_str(peer_addr),
peer_port: peer_port as u16,
host_port: host_port,
}));
}
}
}
Err(Error::new(ENOENT))
}
}

96
syscall/src/scheme.rs
View file

@ -98,3 +98,99 @@ pub trait Scheme {
Err(Error::new(EBADF))
}
}
pub trait SchemeMut {
fn handle(&mut self, packet: &mut Packet) {
packet.a = Error::mux(match packet.a {
SYS_OPEN => self.open(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d, packet.uid, packet.gid),
SYS_MKDIR => self.mkdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.d as u16, packet.uid, packet.gid),
SYS_RMDIR => self.rmdir(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_UNLINK => self.unlink(unsafe { slice::from_raw_parts(packet.b as *const u8, packet.c) }, packet.uid, packet.gid),
SYS_DUP => self.dup(packet.b),
SYS_READ => self.read(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_WRITE => self.write(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }),
SYS_LSEEK => self.seek(packet.b, packet.c, packet.d),
SYS_FEVENT => self.fevent(packet.b, packet.c),
SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
SYS_FSTAT => self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) }),
SYS_FSYNC => self.fsync(packet.b),
SYS_FTRUNCATE => self.ftruncate(packet.b, packet.c),
SYS_CLOSE => self.close(packet.b),
_ => Err(Error::new(ENOSYS))
});
}
/* Scheme operations */
#[allow(unused_variables)]
fn open(&mut self, path: &[u8], flags: usize, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn mkdir(&mut self, path: &[u8], mode: u16, uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn rmdir(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
#[allow(unused_variables)]
fn unlink(&mut self, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
Err(Error::new(ENOENT))
}
/* Resource operations */
#[allow(unused_variables)]
fn dup(&mut self, old_id: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn read(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn write(&mut self, id: usize, buf: &[u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn seek(&mut self, id: usize, pos: usize, whence: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fevent(&mut self, id: usize, flags: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fpath(&mut self, id: usize, buf: &mut [u8]) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn fsync(&mut self, id: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn ftruncate(&mut self, id: usize, len: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
#[allow(unused_variables)]
fn close(&mut self, id: usize) -> Result<usize> {
Err(Error::new(EBADF))
}
}