Implement ioctl arp translation

kernel/Cargo.lock

@@ -333,7 +333,7 @@ dependencies = [
  "rcore-memory 0.1.0",
  "rcore-thread 0.1.0 (git+https://github.com/rcore-os/rcore-thread)",
  "riscv 0.5.0 (git+https://github.com/rcore-os/riscv)",
- "smoltcp 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smoltcp 0.5.0 (git+https://github.com/rcore-os/smoltcp)",
  "spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "uart_16550 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "volatile 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -443,7 +443,7 @@ dependencies = [
 [[package]]
 name = "smoltcp"
 version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/rcore-os/smoltcp#107d299b41a8f8cc370e3105dda38acc33609483"
 dependencies = [
  "bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -647,7 +647,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum skeptic 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "061203a849117b0f7090baf8157aa91dac30545208fbb85166ac58b4ca33d89c"
-"checksum smoltcp 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fef582369edb298c6c41319a544ca9c4e83622f226055ccfcb35974fbb55ed34"
+"checksum smoltcp 0.5.0 (git+https://github.com/rcore-os/smoltcp)" = "<none>"
 "checksum spin 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "ceac490aa12c567115b40b7b7fceca03a6c9d53d5defea066123debc83c5dc1f"
 "checksum spin 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55"
 "checksum static_assertions 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "389ce475f424f267dbed6479cbd8f126c5e1afb053b0acdaa019c74305fc65d1"

kernel/Makefile

@@ -62,8 +62,7 @@ endif
 ### qemu options ###
 qemu_opts := \
 	-smp cores=$(smp)
-qemu_net_opts := \
+qemu_net_opts :=
-	-netdev type=tap,id=net0,script=no,downscript=no
 
 ifeq ($(arch), x86_64)
 qemu_opts += \
@@ -76,6 +75,7 @@ qemu_opts += \
 	-device isa-debug-exit
 ifeq ($(pci_passthru), )
 qemu_net_opts += \
+	-netdev type=tap,id=net0,script=no,downscript=no \
 	-device e1000e,netdev=net0
 else
 qemu_opts += \
@@ -96,6 +96,7 @@ qemu_opts += \
 	-drive file=$(SFSIMG),format=qcow2,id=sfs \
 	-device virtio-blk-device,drive=sfs
 qemu_net_opts += \
+	-netdev type=tap,id=net0,script=no,downscript=no \
 	-device virtio-net-device,netdev=net0
 
 else ifeq ($(arch), riscv64)
@@ -105,6 +106,7 @@ qemu_opts += \
 	-drive file=$(SFSIMG),format=qcow2,id=sfs \
 	-device virtio-blk-device,drive=sfs
 qemu_net_opts += \
+	-netdev type=tap,id=net0,script=no,downscript=no \
 	-device virtio-net-device,netdev=net0
 
 else ifeq ($(arch), aarch64)

kernel/src/drivers/bus/pci.rs

@@ -132,9 +132,11 @@ pub fn init_driver(dev: &PCIDevice) {
                     active_table().map_if_not_exists(KERNEL_OFFSET + current_addr, current_addr);
                     current_addr = current_addr + PAGE_SIZE;
                 }
-                PCI_DRIVERS
+                let index = NET_DRIVERS.read().len();
-                    .lock()
+                PCI_DRIVERS.lock().insert(
-                    .insert(dev.loc, ixgbe::ixgbe_init(name, irq, vaddr, len as usize));
+                    dev.loc,
+                    ixgbe::ixgbe_init(name, irq, vaddr, len as usize, index),
+                );
             }
         }
         (0x8086, 0x2922) => {

kernel/src/drivers/mod.rs

@@ -3,7 +3,7 @@ use alloc::sync::Arc;
 use alloc::vec::Vec;
 
 use lazy_static::lazy_static;
-use smoltcp::wire::{EthernetAddress, Ipv4Address};
+use smoltcp::wire::{EthernetAddress, IpAddress, Ipv4Address};
 use spin::RwLock;
 
 use crate::sync::Condvar;
@@ -71,6 +71,11 @@ pub trait Driver: Send + Sync {
         unimplemented!("not a net driver")
     }
 
+    // get mac address from ip address in arp table
+    fn get_arp(&self, ip: IpAddress) -> Option<EthernetAddress> {
+        unimplemented!("not a net driver")
+    }
+
     // block related drivers should implement these
     fn read_block(&self, block_id: usize, buf: &mut [u8]) -> bool {
         unimplemented!("not a block driver")

kernel/src/drivers/net/e1000.rs

@@ -150,7 +150,6 @@ impl Driver for E1000Interface {
         }
     }
 
-    // send an ethernet frame, only use it when necessary
     fn send(&self, data: &[u8]) -> Option<usize> {
         use smoltcp::phy::TxToken;
         let token = E1000TxToken(self.driver.clone());
@@ -166,6 +165,12 @@ impl Driver for E1000Interface {
             None
         }
     }
+
+    fn get_arp(&self, ip: IpAddress) -> Option<EthernetAddress> {
+        let iface = self.iface.lock();
+        let cache = iface.neighbor_cache();
+        cache.lookup_pure(&ip, Instant::from_millis(0))
+    }
 }
 
 #[repr(C)]
@@ -493,7 +498,7 @@ pub fn e1000_init(name: String, irq: Option<u32>, header: usize, size: usize, in
         .neighbor_cache(neighbor_cache)
         .finalize();
 
-    info!("e1000 interface {} has addr 10.0.{}.2/24", name, index);
+    info!("e1000 interface {} up with addr 10.0.{}.2/24", name, index);
     let e1000_iface = E1000Interface {
         iface: Mutex::new(iface),
         driver: net_driver.clone(),

kernel/src/drivers/net/ixgbe.rs

@@ -100,6 +100,12 @@ impl Driver for IXGBEInterface {
             }
         }
     }
+
+    fn get_arp(&self, ip: IpAddress) -> Option<EthernetAddress> {
+        let iface = self.iface.lock();
+        let cache = iface.neighbor_cache();
+        cache.lookup_pure(&ip, Instant::from_millis(0))
+    }
 }
 pub struct IXGBERxToken(Vec<u8>);
 pub struct IXGBETxToken(IXGBEDriver);
@@ -171,6 +177,7 @@ pub fn ixgbe_init(
     irq: Option<u32>,
     header: usize,
     size: usize,
+    index: usize,
 ) -> Arc<IXGBEInterface> {
     let _ = FlagsGuard::no_irq_region();
     let ixgbe = ixgbe::IXGBEDriver::init(Provider::new(), header, size);
@@ -185,12 +192,9 @@ pub fn ixgbe_init(
         mtu: 1500,
     };
 
-    let ip_addrs = [IpCidr::new(IpAddress::v4(10, 0, 0, 2), 24)];
+    let ip_addrs = [IpCidr::new(IpAddress::v4(10, 0, index as u8, 2), 24)];
     let neighbor_cache = NeighborCache::new(BTreeMap::new());
-    let mut routes = Routes::new(BTreeMap::new());
+    let routes = Routes::new(BTreeMap::new());
-    routes
-        .add_default_ipv4_route(Ipv4Address::new(10, 0, 0, 1))
-        .unwrap();
     let mut iface = EthernetInterfaceBuilder::new(net_driver.clone())
         .ethernet_addr(ethernet_addr)
         .ip_addrs(ip_addrs)
@@ -198,7 +202,7 @@ pub fn ixgbe_init(
         .routes(routes)
         .finalize();
 
-    info!("ixgbe: interface {} up", &name);
+    info!("ixgbe interface {} up with addr 10.0.{}.2/24", name, index);
 
     let ixgbe_iface = IXGBEInterface {
         iface: Mutex::new(iface),

kernel/src/net/structs.rs

@@ -505,7 +505,7 @@ impl Socket for UdpSocketState {
             // SIOCGARP
             0x8954 => {
                 // FIXME: check addr
-                let req = unsafe { &mut *(request as *mut ArpReq) };
+                let req = unsafe { &mut *(arg1 as *mut ArpReq) };
                 if let AddressFamily::Internet = AddressFamily::from(req.arp_pa.family) {
                     let name = req.arp_dev.as_ptr();
                     let ifname = unsafe { util::from_cstr(name) };
@@ -518,6 +518,14 @@ impl Socket for UdpSocketState {
                     for iface in NET_DRIVERS.read().iter() {
                         if iface.get_ifname() == ifname {
                             debug!("get arp matched ifname {}", ifname);
+                            return match iface.get_arp(addr) {
+                                Some(mac) => {
+                                    // TODO: update flags
+                                    req.arp_ha.data[0..6].copy_from_slice(mac.as_bytes());
+                                    Ok(0)
+                                }
+                                None => Err(SysError::ENOENT),
+                            };
                         }
                     }
                     Err(SysError::ENOENT)

kernel/src/syscall/mod.rs

@@ -70,10 +70,7 @@ pub fn syscall(id: usize, args: [usize; 6], tf: &mut TrapFrame) -> isize {
             warn!("sys_sigprocmask is unimplemented");
             Ok(0)
         }
-        SYS_IOCTL => {
+        SYS_IOCTL => sys_ioctl(args[0], args[1], args[2], args[3], args[4]),
-            warn!("sys_ioctl is unimplemented");
-            Ok(0)
-        }
         SYS_PREAD64 => sys_pread(args[0], args[1] as *mut u8, args[2], args[3]),
         SYS_PWRITE64 => sys_pwrite(args[0], args[1] as *const u8, args[2], args[3]),
         SYS_READV => sys_readv(args[0], args[1] as *const IoVec, args[2]),