* [PATCH v4 00/10] spectrum-router
@ 2025-11-29 19:43 Yureka Lilian
2025-11-29 19:43 ` [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests Yureka Lilian
` (9 more replies)
0 siblings, 10 replies; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
Just a few tiny things I forgot in the last series.
Changes since v3:
- Remove leftover c-lib target from start-vmm meson.build
- Update Rust dependencies including tokio-vhost & vhost-device-net
Yureka Lilian (10):
release/checks/integration: temporarily disable networking tests
vm/sys/net: remove connman
pkgs: temporarily disable mailutils tests
vm/sys/net: integrate xdp-forwarder
vm/sys/net: add iwd
tools: add spectrum-router
host: integrate router
img/app: change to ipv6 nameserver
release/checks/integration: Adapt networking test for ipv6
release/checks/integration: reenable networking tests
host/rootfs/default.nix | 4 +-
host/rootfs/file-list.mk | 2 +
.../data/service/spectrum-router/down | 0
.../template/data/service/spectrum-router/run | 9 +
host/rootfs/image/usr/bin/run-vmm | 21 +-
host/rootfs/image/usr/bin/vm-import | 13 -
img/app/image/etc/mdev/iface | 19 +-
img/app/image/etc/resolv.conf | 2 +-
.../etc/s6-rc/mdevd/dependencies.d/nftables | 0
pkgs/default.nix | 2 +
pkgs/overlay.nix | 4 +
release/checks/integration/default.nix | 2 +-
release/checks/integration/networking.c | 33 +-
tools/router/Cargo.lock | 807 ++++++++++++++++++
tools/router/Cargo.lock.license | 2 +
tools/router/Cargo.toml | 21 +
tools/router/default.nix | 18 +
tools/router/src/main.rs | 73 ++
tools/router/src/packet.rs | 187 ++++
tools/router/src/protocol.rs | 65 ++
tools/router/src/router.rs | 147 ++++
tools/router/src/upstream.rs | 175 ++++
tools/start-vmm/ch.rs | 66 +-
tools/start-vmm/lib.rs | 73 +-
tools/start-vmm/meson.build | 9 +-
tools/start-vmm/net-util.c | 39 -
tools/start-vmm/net-util.h | 6 -
tools/start-vmm/net.c | 55 --
tools/start-vmm/net.rs | 11 -
tools/start-vmm/tests/meson.build | 5 -
.../start-vmm/tests/tap_open-name-too-long.c | 20 -
tools/start-vmm/tests/tap_open.c | 28 -
vm/sys/net/Makefile | 2 +-
vm/sys/net/default.nix | 15 +-
vm/sys/net/file-list.mk | 3 -
vm/sys/net/image/etc/fstab | 2 +
vm/sys/net/image/etc/mdev/iface | 28 +-
vm/sys/net/image/etc/nftables.conf | 16 +-
vm/sys/net/image/etc/s6-rc/connman/run | 19 -
vm/sys/net/image/etc/s6-rc/connman/type | 1 -
.../net/image/etc/s6-rc/connman/type.license | 2 -
41 files changed, 1640 insertions(+), 366 deletions(-)
rename vm/sys/net/image/etc/s6-rc/connman/dependencies.d/dbus => host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/down (100%)
create mode 100755 host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run
create mode 100644 img/app/image/etc/s6-rc/mdevd/dependencies.d/nftables
create mode 100644 tools/router/Cargo.lock
create mode 100644 tools/router/Cargo.lock.license
create mode 100644 tools/router/Cargo.toml
create mode 100644 tools/router/default.nix
create mode 100644 tools/router/src/main.rs
create mode 100644 tools/router/src/packet.rs
create mode 100644 tools/router/src/protocol.rs
create mode 100644 tools/router/src/router.rs
create mode 100644 tools/router/src/upstream.rs
delete mode 100644 tools/start-vmm/net-util.c
delete mode 100644 tools/start-vmm/net-util.h
delete mode 100644 tools/start-vmm/net.c
delete mode 100644 tools/start-vmm/tests/tap_open-name-too-long.c
delete mode 100644 tools/start-vmm/tests/tap_open.c
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/run
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type.license
--
2.51.2
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 02/10] vm/sys/net: remove connman Yureka Lilian
` (8 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
The following commits only work as a series.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
release/checks/integration/meson.build | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/release/checks/integration/meson.build b/release/checks/integration/meson.build
index 7bf8f51..8938728 100644
--- a/release/checks/integration/meson.build
+++ b/release/checks/integration/meson.build
@@ -11,7 +11,12 @@ run_qemu = find_program('../../../scripts/run-qemu.sh')
lib = static_library('spectrum-integration-test', 'lib.c')
-foreach test : ['appimage', 'late-serial', 'networking', 'portal']
+foreach test : [
+ 'appimage',
+ 'late-serial',
+ # 'networking',
+ 'portal',
+]
test(test, executable(test, test + '.c', link_with : lib),
timeout : 400,
args : [run_qemu])
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 02/10] vm/sys/net: remove connman
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
2025-11-29 19:43 ` [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 03/10] pkgs: temporarily disable mailutils tests Yureka Lilian
` (7 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian, Alyssa Ross
In preparation to integrating xdp-forwarder, making the net-vm a net-driver VM.
dbus is left, as it will likely be needed in the future for iwd.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
Reviewed-by: Alyssa Ross <hi@alyssa.is>
---
vm/sys/net/Makefile | 2 +-
vm/sys/net/default.nix | 8 +++-----
vm/sys/net/file-list.mk | 3 ---
.../etc/s6-rc/connman/dependencies.d/dbus | 0
vm/sys/net/image/etc/s6-rc/connman/run | 19 -------------------
vm/sys/net/image/etc/s6-rc/connman/type | 1 -
.../net/image/etc/s6-rc/connman/type.license | 2 --
7 files changed, 4 insertions(+), 31 deletions(-)
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/dependencies.d/dbus
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/run
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type
delete mode 100644 vm/sys/net/image/etc/s6-rc/connman/type.license
diff --git a/vm/sys/net/Makefile b/vm/sys/net/Makefile
index d71c232..7ad5e5c 100644
--- a/vm/sys/net/Makefile
+++ b/vm/sys/net/Makefile
@@ -29,7 +29,7 @@ $(vmdir)/netvm/blk/root.img: ../../../scripts/make-gpt.sh ../../../scripts/sfdis
build/rootfs.erofs:root:ea21da27-0391-48da-9235-9d2ab2ca7844:root
mv $@.tmp $@
-DIRS = dev etc/s6-linux-init/env proc run sys var/lib/connman
+DIRS = dev etc/s6-linux-init/env proc run sys
BUILD_FILES = build/etc/s6-rc
diff --git a/vm/sys/net/default.nix b/vm/sys/net/default.nix
index de273e5..ae7fdc5 100644
--- a/vm/sys/net/default.nix
+++ b/vm/sys/net/default.nix
@@ -7,7 +7,7 @@ pkgsMusl.callPackage (
{ lib, stdenvNoCC, nixos, runCommand, writeClosure
, erofs-utils, jq, s6-rc, util-linux, xorg
-, busybox, connmanMinimal, dbus, execline, kmod, linux_latest, mdevd, nftables
+, busybox, dbus, execline, kmod, linux_latest, mdevd, nftables
, s6, s6-linux-init
}:
@@ -51,10 +51,8 @@ let
];
});
- connman = connmanMinimal;
-
packages = [
- connman dbus execline kmod mdevd s6 s6-linux-init s6-rc
+ dbus execline kmod mdevd s6 s6-linux-init s6-rc
(busybox.override {
extraConfig = ''
@@ -73,7 +71,7 @@ let
# Packages that should be fully linked into /usr,
# (not just their bin/* files).
- usrPackages = [ connman dbus firmware kernel.modules terminfo ];
+ usrPackages = [ dbus firmware kernel.modules terminfo ];
packagesSysroot = runCommand "packages-sysroot" {
inherit packages;
diff --git a/vm/sys/net/file-list.mk b/vm/sys/net/file-list.mk
index 15ccd24..7cc3520 100644
--- a/vm/sys/net/file-list.mk
+++ b/vm/sys/net/file-list.mk
@@ -20,9 +20,6 @@ LINKS = \
image/var/run
S6_RC_FILES = \
- image/etc/s6-rc/connman/dependencies.d/dbus \
- image/etc/s6-rc/connman/run \
- image/etc/s6-rc/connman/type \
image/etc/s6-rc/dbus/notification-fd \
image/etc/s6-rc/dbus/run \
image/etc/s6-rc/dbus/type \
diff --git a/vm/sys/net/image/etc/s6-rc/connman/dependencies.d/dbus b/vm/sys/net/image/etc/s6-rc/connman/dependencies.d/dbus
deleted file mode 100644
index e69de29..0000000
diff --git a/vm/sys/net/image/etc/s6-rc/connman/run b/vm/sys/net/image/etc/s6-rc/connman/run
deleted file mode 100644
index 058fc17..0000000
--- a/vm/sys/net/image/etc/s6-rc/connman/run
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/bin/execlineb -P
-# SPDX-License-Identifier: EUPL-1.2+
-# SPDX-FileCopyrightText: 2020-2021 Alyssa Ross <hi@alyssa.is>
-
-if { modprobe af_packet }
-
-backtick -E HARDWARE_INTERFACES {
- pipeline {
- find -L /sys/class/net -mindepth 2 -maxdepth 2 -name address -print0
- }
-
- # Filter out other VMs and the loopback device.
- pipeline { xargs -0 grep -iL ^\\(02:01:\\|00:00:00:00:00:00$\\) }
-
- # Extract the interface names from the address file paths.
- awk -F/ "{if (NR > 1) printf \",\"; printf \"%s\", $5}"
-}
-
-connmand -ni $HARDWARE_INTERFACES
diff --git a/vm/sys/net/image/etc/s6-rc/connman/type b/vm/sys/net/image/etc/s6-rc/connman/type
deleted file mode 100644
index 5883cff..0000000
--- a/vm/sys/net/image/etc/s6-rc/connman/type
+++ /dev/null
@@ -1 +0,0 @@
-longrun
diff --git a/vm/sys/net/image/etc/s6-rc/connman/type.license b/vm/sys/net/image/etc/s6-rc/connman/type.license
deleted file mode 100644
index 2b3b032..0000000
--- a/vm/sys/net/image/etc/s6-rc/connman/type.license
+++ /dev/null
@@ -1,2 +0,0 @@
-SPDX-License-Identifier: CC0-1.0
-SPDX-FileCopyrightText: 2020 Alyssa Ross <hi@alyssa.is>
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 03/10] pkgs: temporarily disable mailutils tests
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
2025-11-29 19:43 ` [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests Yureka Lilian
2025-11-29 19:43 ` [PATCH v4 02/10] vm/sys/net: remove connman Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder Yureka Lilian
` (6 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
pkgsMusl.mailutils fails to build, which has been tracked down to some impurity (fails to build on some systems consistently)
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
pkgs/overlay.nix | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index fdddae0..19a542c 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -11,4 +11,8 @@
);
skawarePackages = import ./skaware-packages { inherit final super; };
+
+ mailutils = super.mailutils.overrideAttrs (_: (
+ final.lib.optionalAttrs final.stdenv.hostPlatform.isMusl { doCheck = false; }
+ ));
})
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (2 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 03/10] pkgs: temporarily disable mailutils tests Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 05/10] vm/sys/net: add iwd Yureka Lilian
` (5 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian, Alyssa Ross
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
Reviewed-by: Alyssa Ross <hi@alyssa.is>
---
.../etc/s6-rc/mdevd/dependencies.d/nftables | 0
vm/sys/net/default.nix | 11 ++++++--
vm/sys/net/image/etc/fstab | 2 ++
vm/sys/net/image/etc/mdev/iface | 28 ++++++-------------
vm/sys/net/image/etc/nftables.conf | 16 ++++++++---
5 files changed, 31 insertions(+), 26 deletions(-)
create mode 100644 img/app/image/etc/s6-rc/mdevd/dependencies.d/nftables
diff --git a/img/app/image/etc/s6-rc/mdevd/dependencies.d/nftables b/img/app/image/etc/s6-rc/mdevd/dependencies.d/nftables
new file mode 100644
index 0000000..e69de29
diff --git a/vm/sys/net/default.nix b/vm/sys/net/default.nix
index ae7fdc5..f4e51dd 100644
--- a/vm/sys/net/default.nix
+++ b/vm/sys/net/default.nix
@@ -8,7 +8,7 @@ pkgsMusl.callPackage (
{ lib, stdenvNoCC, nixos, runCommand, writeClosure
, erofs-utils, jq, s6-rc, util-linux, xorg
, busybox, dbus, execline, kmod, linux_latest, mdevd, nftables
-, s6, s6-linux-init
+, s6, s6-linux-init, xdp-tools, spectrum-driver-tools
}:
let
@@ -52,7 +52,7 @@ let
});
packages = [
- dbus execline kmod mdevd s6 s6-linux-init s6-rc
+ dbus execline kmod mdevd s6 s6-linux-init s6-rc xdp-tools
(busybox.override {
extraConfig = ''
@@ -71,7 +71,12 @@ let
# Packages that should be fully linked into /usr,
# (not just their bin/* files).
- usrPackages = [ dbus firmware kernel.modules terminfo ];
+ usrPackages = [
+ dbus firmware kernel.modules terminfo
+
+ # for xdp-forwarder
+ spectrum-driver-tools
+ ];
packagesSysroot = runCommand "packages-sysroot" {
inherit packages;
diff --git a/vm/sys/net/image/etc/fstab b/vm/sys/net/image/etc/fstab
index 5dc9b2a..a0b62fa 100644
--- a/vm/sys/net/image/etc/fstab
+++ b/vm/sys/net/image/etc/fstab
@@ -1,6 +1,8 @@
# SPDX-License-Identifier: CC0-1.0
# SPDX-FileCopyrightText: 2020-2021 Alyssa Ross <hi@alyssa.is>
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
proc /proc proc defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
sysfs /sys sysfs defaults 0 0
+bpffs /sys/fs/bpf bpf defaults 0 0
diff --git a/vm/sys/net/image/etc/mdev/iface b/vm/sys/net/image/etc/mdev/iface
index 2306575..da45ce9 100755
--- a/vm/sys/net/image/etc/mdev/iface
+++ b/vm/sys/net/image/etc/mdev/iface
@@ -1,36 +1,26 @@
#!/bin/execlineb -P
# SPDX-License-Identifier: EUPL-1.2+
# SPDX-FileCopyrightText: 2020-2021 Alyssa Ross <hi@alyssa.is>
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
importas -Si INTERFACE
ifte
{
- # This interface is connected to another VM.
-
- # The other VM's IP is encoded in the NIC-specific portion of the
- # interface's MAC address.
- backtick -E CLIENT_IP {
- awk -F: "{printf \"100.64.%d.%d\\n\", \"0x\" $5, \"0x\" $6}"
- /sys/class/net/${INTERFACE}/address
- }
-
- if { ip address add 169.254.0.1/32 dev $INTERFACE }
- if { ip link set $INTERFACE up }
- ip route add $CLIENT_IP dev $INTERFACE
+ # This interface is connected to the router
+ if { xdp-loader load $INTERFACE /usr/lib/xdp/prog_router.o -m skb -p /sys/fs/bpf }
+ if { ip link set $INTERFACE promisc on }
+ if { set-router-iface $INTERFACE }
+ ip link set $INTERFACE up
}
{
if { test $INTERFACE != lo }
# This is a physical connection to a network device.
- background { s6-rc -bu change connman }
- if { s6-rc -bu change nftables }
- if {
- forx -pE module { nft_counter nft_masq }
- modprobe $module
- }
- nft add rule ip nat postrouting oifname $INTERFACE counter masquerade
+ if { xdp-loader load $INTERFACE /usr/lib/xdp/prog_physical.o -m skb -p /sys/fs/bpf }
+ if { ip link set $INTERFACE promisc on }
+ ip link set $INTERFACE up
}
grep -iq ^02:01: /sys/class/net/${INTERFACE}/address
diff --git a/vm/sys/net/image/etc/nftables.conf b/vm/sys/net/image/etc/nftables.conf
index 296d92c..cc8e462 100644
--- a/vm/sys/net/image/etc/nftables.conf
+++ b/vm/sys/net/image/etc/nftables.conf
@@ -1,8 +1,16 @@
# SPDX-License-Identifier: EUPL-1.2+
-# SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
-table nat {
- chain postrouting {
- type nat hook postrouting priority 100;
+table driver-fw {
+ chain input {
+ type filter hook input priority filter; policy drop;
+ }
+
+ chain output {
+ type filter hook output priority filter; policy drop;
+ }
+
+ chain forward {
+ type filter hook forward priority filter; policy drop;
}
}
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 05/10] vm/sys/net: add iwd
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (3 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 06/10] tools: add spectrum-router Yureka Lilian
` (4 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian, Alyssa Ross
This allows developers to manually start the iwd daemon and connect to a
wireless network, to confirm that the rest of the stack works correctly
when used with Wi-Fi.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
Reviewed-by: Alyssa Ross <hi@alyssa.is>
---
vm/sys/net/default.nix | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/vm/sys/net/default.nix b/vm/sys/net/default.nix
index f4e51dd..889e5ec 100644
--- a/vm/sys/net/default.nix
+++ b/vm/sys/net/default.nix
@@ -8,7 +8,7 @@ pkgsMusl.callPackage (
{ lib, stdenvNoCC, nixos, runCommand, writeClosure
, erofs-utils, jq, s6-rc, util-linux, xorg
, busybox, dbus, execline, kmod, linux_latest, mdevd, nftables
-, s6, s6-linux-init, xdp-tools, spectrum-driver-tools
+, s6, s6-linux-init, xdp-tools, spectrum-driver-tools, iwd
}:
let
@@ -72,7 +72,7 @@ let
# Packages that should be fully linked into /usr,
# (not just their bin/* files).
usrPackages = [
- dbus firmware kernel.modules terminfo
+ dbus firmware kernel.modules terminfo iwd
# for xdp-forwarder
spectrum-driver-tools
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 06/10] tools: add spectrum-router
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (4 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 05/10] vm/sys/net: add iwd Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 07/10] host: integrate router Yureka Lilian
` (3 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
The tokio-vhost & vhost-device-net crates which we also wrote and depend
on are left external in the outlook of becoming a rust-vmm project soon.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
pkgs/default.nix | 2 +
tools/router/Cargo.lock | 807 ++++++++++++++++++++++++++++++++
tools/router/Cargo.lock.license | 2 +
tools/router/Cargo.toml | 21 +
tools/router/default.nix | 18 +
tools/router/src/main.rs | 73 +++
tools/router/src/packet.rs | 187 ++++++++
tools/router/src/protocol.rs | 65 +++
tools/router/src/router.rs | 147 ++++++
tools/router/src/upstream.rs | 175 +++++++
10 files changed, 1497 insertions(+)
create mode 100644 tools/router/Cargo.lock
create mode 100644 tools/router/Cargo.lock.license
create mode 100644 tools/router/Cargo.toml
create mode 100644 tools/router/default.nix
create mode 100644 tools/router/src/main.rs
create mode 100644 tools/router/src/packet.rs
create mode 100644 tools/router/src/protocol.rs
create mode 100644 tools/router/src/router.rs
create mode 100644 tools/router/src/upstream.rs
diff --git a/pkgs/default.nix b/pkgs/default.nix
index 0d159c9..c7311cb 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -52,6 +52,8 @@ let
xdg-desktop-portal-spectrum-host =
self.callSpectrumPackage ../tools/xdg-desktop-portal-spectrum-host {};
+ spectrum-router = self.callSpectrumPackage ../tools/router {};
+
# Packages from the overlay, so it's possible to build them from
# the CLI easily.
inherit (pkgs) cloud-hypervisor dbus;
diff --git a/tools/router/Cargo.lock b/tools/router/Cargo.lock
new file mode 100644
index 0000000..60d7657
--- /dev/null
+++ b/tools/router/Cargo.lock
@@ -0,0 +1,807 @@
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+]
diff --git a/tools/router/Cargo.lock.license b/tools/router/Cargo.lock.license
new file mode 100644
index 0000000..9b37611
--- /dev/null
+++ b/tools/router/Cargo.lock.license
@@ -0,0 +1,2 @@
+SPDX-License-Identifier: CC0-1.0
+SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
diff --git a/tools/router/Cargo.toml b/tools/router/Cargo.toml
new file mode 100644
index 0000000..0b96911
--- /dev/null
+++ b/tools/router/Cargo.toml
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: CC0-1.0
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+[package]
+name = "spectrum-router"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1.0.100"
+clap = { version = "4.5.45", features = ["derive"] }
+env_logger = "0.11.8"
+log = { version = "0.4.27", features = ["release_max_level_debug"] }
+vhost-device-net = "0.1.0"
+tokio = { version = "1.48.0", features = ["macros", "rt"] }
+futures-util = "0.3.31"
+zerocopy = "0.8.27"
+tokio-stream = "0.1.17"
+arrayvec = "0.7.6"
+vm-memory = "0.16"
+tokio-util = "0.7.17"
diff --git a/tools/router/default.nix b/tools/router/default.nix
new file mode 100644
index 0000000..e70f9ec
--- /dev/null
+++ b/tools/router/default.nix
@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: 2024 Alyssa Ross <hi@alyssa.is>
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+# SPDX-License-Identifier: MIT
+
+import ../../lib/call-package.nix (
+{ src, lib, rustPlatform }:
+
+rustPlatform.buildRustPackage {
+ name = "spectrum-router";
+
+ src = lib.fileset.toSource {
+ root = ../..;
+ fileset = lib.fileset.intersection src ./.;
+ };
+ sourceRoot = "source/tools/router";
+
+ cargoLock.lockFile = ./Cargo.lock;
+}) (_: {})
diff --git a/tools/router/src/main.rs b/tools/router/src/main.rs
new file mode 100644
index 0000000..e3aca65
--- /dev/null
+++ b/tools/router/src/main.rs
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: EUPL-1.2+
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+pub(crate) mod packet;
+pub(crate) mod protocol;
+mod router;
+mod upstream;
+
+use std::path::PathBuf;
+
+use packet::*;
+use router::{InterfaceId, Router};
+use upstream::Upstream;
+
+use clap::Parser;
+use futures_util::{SinkExt, TryStreamExt};
+use log::{error, info};
+use tokio::net::UnixListener;
+use vhost_device_net::{IncomingPacket, VhostDeviceNet};
+use vm_memory::GuestMemoryMmap;
+
+#[derive(Parser, Debug)]
+#[command()] //version = None, about = None, long_about = None)]
+struct Args {
+ #[arg(long)]
+ driver_listen_path: PathBuf,
+ #[arg(long)]
+ app_listen_path: PathBuf,
+}
+
+fn main() -> anyhow::Result<()> {
+ env_logger::init();
+ let args = Args::parse();
+
+ for path in [&args.driver_listen_path, &args.app_listen_path] {
+ let _ = std::fs::remove_file(path);
+ }
+
+ run_router(args)
+}
+#[tokio::main(flavor = "current_thread")]
+async fn run_router(args: Args) -> anyhow::Result<()> {
+ let app_listener = UnixListener::bind(&args.app_listen_path)?;
+ let driver_listener = UnixListener::bind(&args.driver_listen_path)?;
+
+ let mut router = Router::<GuestMemoryMmap>::new(InterfaceId::Upstream);
+
+ let (mut upstream, upstream_tx, upstream_rx) = Upstream::new(driver_listener);
+ router.add_iface(InterfaceId::Upstream, upstream_tx, upstream_rx);
+
+ tokio::spawn(async move { upstream.run().await });
+
+ let mut app_num = 0;
+
+ loop {
+ tokio::select! {
+ app_conn = app_listener.accept() => {
+ info!("app connected");
+ match app_conn {
+ Ok((stream, _addr)) => {
+ let device = VhostDeviceNet::from_unix_stream(stream).await?;
+ let stream = Box::pin(device.tx().await?.map_ok(|buf| Packet::Incoming { buf: Some(buf), decap_vlan: false }));
+ let sink = Box::pin(device.rx().await?.with(|packet: Packet<IncomingPacket<GuestMemoryMmap>>| async move { Ok(packet.out(None)?.into_reader()) }));
+ router.add_iface(InterfaceId::App(app_num), stream, sink);
+ app_num = app_num.checked_add(1).unwrap();
+ }
+ Err(e) => error!("app connection failed: {}", e),
+ }
+ }
+ _ = router.run() => {}
+ }
+ }
+}
diff --git a/tools/router/src/packet.rs b/tools/router/src/packet.rs
new file mode 100644
index 0000000..1f14ef1
--- /dev/null
+++ b/tools/router/src/packet.rs
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: EUPL-1.2+
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+use std::io::{self, Chain, Cursor, Read};
+
+use crate::protocol::*;
+
+use arrayvec::ArrayVec;
+use zerocopy::*;
+
+pub enum PacketData<R> {
+ Incoming(R),
+ Bytes(Cursor<Box<[u8]>>),
+}
+
+impl<R: Read> Read for PacketData<R> {
+ fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
+ match self {
+ PacketData::Incoming(r) => r.read(buf),
+ PacketData::Bytes(b) => b.read(buf),
+ }
+ }
+}
+
+impl<R: Read> PacketData<R> {
+ pub fn full_packet(&mut self) -> &[u8] {
+ match self {
+ PacketData::Bytes(b) => b.get_ref().as_ref(),
+ PacketData::Incoming(r) => {
+ let mut buf = vec![];
+ r.read_to_end(&mut buf).unwrap();
+ *self = PacketData::Bytes(Cursor::new(buf.into_boxed_slice()));
+ let PacketData::Bytes(b) = self else {
+ unreachable!()
+ };
+ b.get_ref().as_ref()
+ }
+ }
+ }
+}
+
+pub enum Packet<R> {
+ /// The packet has not been looked at / read into our memory yet
+ Incoming { decap_vlan: bool, buf: Option<R> },
+ /// We've read the head of the packet to look at the headers.
+ Peek {
+ decap_vlan: bool,
+ peek: ArrayVec<u8, 64>,
+ buf: PacketData<R>,
+ },
+}
+
+pub struct PacketHeaders<'a, R> {
+ pub ether_frame: &'a mut EtherFrame,
+ pub vlan_tag: Option<&'a mut VlanTag>,
+ pub ether_type: &'a mut EtherType,
+ pub ipv6_hdr: Option<&'a mut Ipv6Header>,
+ pub peek_slice: &'a mut [u8],
+ pub buf: &'a mut PacketData<R>,
+}
+
+impl<R: Read> Packet<R> {
+ fn peek(
+ &mut self,
+ ) -> (
+ &mut ArrayVec<u8, 64>,
+ &mut PacketData<R>,
+ &mut bool, // decap_vlan
+ ) {
+ match self {
+ Packet::Incoming { buf, decap_vlan } => {
+ let mut buf = std::mem::take(buf).unwrap();
+ // A stack allocation which can keep all headers we are interested in
+ let mut peek = [0u8; 64];
+ // Read the first 64 bytes
+ // 64 >= 14 (ether) + 4 (vlan) + 40 (ipv6) + 4 (icmpv6)
+ let n = buf.read(&mut peek).unwrap();
+
+ let buf = PacketData::Incoming(buf);
+ let mut peek = ArrayVec::from(peek);
+ peek.truncate(n);
+ *self = Packet::Peek {
+ peek,
+ buf,
+ decap_vlan: *decap_vlan,
+ };
+ let Packet::Peek {
+ peek,
+ buf,
+ decap_vlan,
+ } = self
+ else {
+ unreachable!()
+ };
+ (peek, buf, decap_vlan)
+ }
+ Packet::Peek {
+ peek,
+ buf,
+ decap_vlan,
+ } => (peek, buf, decap_vlan),
+ }
+ }
+ pub fn headers(&mut self) -> io::Result<PacketHeaders<'_, R>> {
+ let (peek, buf, decap_vlan) = self.peek();
+ let peek_slice = peek.as_mut_slice();
+ let (ether_frame, peek_slice) = EtherFrame::mut_from_prefix(peek_slice)
+ .map_err(|_| io::Error::other("packet with <12 bytes"))?;
+ let (ether_type, _) = EtherType::ref_from_prefix(peek_slice)
+ .map_err(|_| io::Error::other("packet with <14 bytes"))?;
+
+ let (vlan_tag, peek_slice) = if *decap_vlan && *ether_type == ETHER_TYPE_802_1Q {
+ let (vlan, peek_slice) = VlanTag::mut_from_prefix(peek_slice)
+ .map_err(|_| io::Error::other("packet with <16 bytes"))?;
+ (Some(vlan), peek_slice)
+ } else {
+ (None, peek_slice)
+ };
+ let (ether_type, peek_slice) = EtherType::mut_from_prefix(peek_slice)
+ .map_err(|_| io::Error::other("packet with <18 bytes"))?;
+
+ let (ipv6_hdr, peek_slice) = if *ether_type == ETHER_TYPE_IPV6 {
+ let (ipv6_hdr, peek_slice) = Ipv6Header::mut_from_prefix(peek_slice)
+ .map_err(|_| io::Error::other("short ipv6 header"))?;
+ (Some(ipv6_hdr), peek_slice)
+ } else {
+ (None, peek_slice)
+ };
+
+ Ok(PacketHeaders {
+ ether_frame,
+ vlan_tag,
+ ether_type,
+ ipv6_hdr,
+ peek_slice,
+ buf,
+ })
+ }
+ pub fn out(mut self, vlan_encap: Option<VlanTag>) -> io::Result<OutgoingPacket<R>> {
+ let PacketHeaders {
+ ether_frame,
+ ether_type,
+ ipv6_hdr,
+ peek_slice,
+ ..
+ } = self.headers()?;
+
+ let mut headers_out = ArrayVec::<u8, 128>::new();
+ headers_out
+ .try_extend_from_slice(ether_frame.as_bytes())
+ .unwrap();
+ if let Some(vlan_tag) = vlan_encap {
+ headers_out
+ .try_extend_from_slice(vlan_tag.as_bytes())
+ .unwrap();
+ }
+ headers_out
+ .try_extend_from_slice(ether_type.as_bytes())
+ .unwrap();
+ if let Some(ipv6_hdr) = ipv6_hdr {
+ headers_out
+ .try_extend_from_slice(ipv6_hdr.as_bytes())
+ .unwrap();
+ }
+ headers_out.try_extend_from_slice(peek_slice).unwrap();
+
+ let Packet::Peek {
+ peek: _peek, buf, ..
+ } = self
+ else {
+ unreachable!()
+ };
+ Ok(OutgoingPacket { headers_out, buf })
+ }
+}
+
+pub struct OutgoingPacket<R> {
+ /// This has extra space for added encapsulation / VLAN tags
+ headers_out: ArrayVec<u8, 128>,
+ buf: PacketData<R>,
+}
+
+impl<R: Read> OutgoingPacket<R> {
+ pub fn into_reader(self) -> Chain<Cursor<ArrayVec<u8, 128>>, PacketData<R>> {
+ Cursor::new(self.headers_out).chain(self.buf)
+ }
+}
diff --git a/tools/router/src/protocol.rs b/tools/router/src/protocol.rs
new file mode 100644
index 0000000..341b7ff
--- /dev/null
+++ b/tools/router/src/protocol.rs
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: EUPL-1.2+
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+use zerocopy::byteorder::network_endian::{U16, U32};
+use zerocopy::*;
+
+pub const ETHER_TYPE_IPV6: u16 = 0x86dd;
+pub const ETHER_TYPE_802_1Q: u16 = 0x8100;
+pub const IP_PROTO_ICMP6: u8 = 0x3a;
+pub const ICMP6_TYPE_R_ADV: u8 = 134;
+
+pub type MacAddr = [u8; 6];
+pub fn is_multicast(mac: &MacAddr) -> bool {
+ match mac {
+ [0xff, 0xff, 0xff, 0xff, 0xff, 0xff] => true,
+ [0x01, 0x80, 0xc2, _, _, _] => true, // 802 group
+ [0x33, 0x33, _, _, _, _] => true, // IPv6 multicast
+ _ => false,
+ }
+}
+
+#[derive(Debug, PartialEq, Eq, FromBytes, IntoBytes, KnownLayout, Immutable, Unaligned)]
+#[repr(C)]
+pub struct EtherFrame {
+ pub dst_addr: MacAddr,
+ pub src_addr: MacAddr,
+}
+
+pub type EtherType = U16;
+
+#[derive(Debug, PartialEq, Eq, FromBytes, IntoBytes, KnownLayout, Immutable, Unaligned)]
+#[repr(C)]
+pub struct VlanTag {
+ pub ether_type: U16,
+ pub tag_control_information: U16,
+}
+
+#[derive(Debug, PartialEq, Eq, FromBytes, IntoBytes, KnownLayout, Immutable, Unaligned)]
+#[repr(C)]
+pub struct Ipv6Header {
+ pub version_traffic_class_flow_label: U32,
+ pub payload_length: U16,
+ pub next_header: u8,
+ pub hop_limit: u8,
+ pub src_addr: [u8; 16],
+ pub dst_addr: [u8; 16],
+}
+
+#[derive(Debug, PartialEq, Eq, FromBytes, IntoBytes, KnownLayout, Immutable, Unaligned)]
+#[repr(C)]
+pub struct Icmpv6Header {
+ pub msg_type: u8,
+ pub code: u8,
+ pub checksum: U16,
+}
+
+#[derive(Debug, PartialEq, Eq, FromBytes, IntoBytes, KnownLayout, Immutable, Unaligned)]
+#[repr(C)]
+pub struct Icmpv6RouterAdvertisement {
+ pub hop_limit: u8,
+ pub flags: u8,
+ pub router_lifetime: U16,
+ pub reachable_time: U32,
+ pub retrans_timer: U32,
+}
diff --git a/tools/router/src/router.rs b/tools/router/src/router.rs
new file mode 100644
index 0000000..a91e415
--- /dev/null
+++ b/tools/router/src/router.rs
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: EUPL-1.2+
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+use std::collections::HashMap;
+use std::io::{self, Cursor};
+use std::net::Ipv6Addr;
+use std::pin::Pin;
+use std::time::Duration;
+
+use crate::packet::*;
+use crate::protocol::*;
+
+use futures_util::{FutureExt, Sink, SinkExt, Stream, StreamExt};
+use log::{debug, info, warn};
+use tokio_stream::StreamMap;
+use vhost_device_net::IncomingPacket;
+use vm_memory::GuestMemory;
+
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub enum InterfaceId {
+ Upstream,
+ App(usize),
+ Broadcast,
+}
+
+pub type PacketStream<M> = Pin<Box<dyn Stream<Item = io::Result<Packet<IncomingPacket<M>>>>>>;
+pub type PacketSink<M> = Pin<Box<dyn Sink<Packet<IncomingPacket<M>>, Error = io::Error>>>;
+
+pub struct Router<M: GuestMemory> {
+ streams: StreamMap<InterfaceId, PacketStream<M>>,
+ sinks: HashMap<InterfaceId, PacketSink<M>>,
+ fib: HashMap<Ipv6Addr, (MacAddr, InterfaceId)>,
+ default_out: InterfaceId,
+}
+
+impl<M: GuestMemory> Router<M> {
+ pub fn new(default_out: InterfaceId) -> Self {
+ Self {
+ streams: Default::default(),
+ sinks: Default::default(),
+ fib: Default::default(),
+ default_out,
+ }
+ }
+
+ pub fn add_iface(&mut self, id: InterfaceId, stream: PacketStream<M>, sink: PacketSink<M>) {
+ self.streams.insert(id.clone(), stream);
+ self.sinks.insert(id.clone(), sink);
+ }
+
+ pub async fn run(&mut self) -> io::Result<()> {
+ loop {
+ let next_res = self.streams.next().await;
+ let Some((in_iface, Ok(mut packet))) = next_res else {
+ info!("incoming err");
+ continue;
+ };
+
+ let PacketHeaders {
+ ether_frame,
+ ipv6_hdr,
+ ..
+ } = packet.headers()?;
+
+ let Some(ipv6_hdr) = ipv6_hdr else {
+ continue;
+ };
+ let src_addr = Ipv6Addr::from(ipv6_hdr.src_addr);
+ let dst_addr = Ipv6Addr::from(ipv6_hdr.dst_addr);
+
+ let out_iface = if is_multicast(ðer_frame.dst_addr) {
+ InterfaceId::Broadcast
+ } else if let Some((dst_mac, if_idx)) = self.fib.get(&dst_addr) {
+ ether_frame.dst_addr = *dst_mac;
+ if_idx.clone()
+ } else if in_iface != self.default_out {
+ self.default_out.clone()
+ } else {
+ warn!("no fib match for {}, dropping packet", dst_addr);
+ continue;
+ };
+
+ if in_iface != self.default_out
+ && !src_addr.is_unspecified()
+ && !src_addr.is_multicast()
+ && !self.fib.contains_key(&src_addr)
+ {
+ debug!(
+ "adding fib entry for {} -> {:x?} {:?}",
+ src_addr, ether_frame.src_addr, in_iface
+ );
+ self.fib
+ .insert(src_addr, (ether_frame.src_addr, in_iface.clone()));
+ }
+
+ match out_iface {
+ InterfaceId::Broadcast => {
+ let Packet::Peek {
+ peek,
+ mut buf,
+ decap_vlan,
+ } = packet
+ else {
+ unreachable!()
+ };
+ let buf = Box::<[u8]>::from(buf.full_packet());
+ futures_util::future::try_join_all(
+ self.sinks
+ .iter_mut()
+ .filter(|(id, _)| **id != in_iface)
+ .map(|(id, sink)| {
+ let packet = Packet::Peek {
+ peek: peek.clone(),
+ buf: PacketData::Bytes(Cursor::new(buf.clone())),
+ decap_vlan,
+ };
+ let fut = sink.send(packet);
+ tokio::time::timeout(Duration::from_secs(1), fut).map(move |res| match res {
+ Err(_) => {
+ warn!("interface {:?} has been blocked for 1 sec, dropping packet", id);
+ Ok(())
+ },
+ Ok(Err(e)) => Err(e),
+ Ok(Ok(())) => Ok(()),
+ })
+ }),
+ )
+ .await?;
+ }
+ ref unicast => {
+ let Some(sink) = self.sinks.get_mut(unicast) else {
+ warn!("dropped packet because interface is not ready");
+ continue;
+ };
+ match tokio::time::timeout(Duration::from_secs(1), sink.send(packet)).await {
+ Err(_) => warn!(
+ "interface {:?} has been blocked for 1 sec, dropping packet",
+ unicast
+ ),
+ Ok(Err(e)) => return Err(e),
+ Ok(Ok(())) => {}
+ }
+ }
+ }
+ }
+ }
+}
diff --git a/tools/router/src/upstream.rs b/tools/router/src/upstream.rs
new file mode 100644
index 0000000..08229e8
--- /dev/null
+++ b/tools/router/src/upstream.rs
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: EUPL-1.2+
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+use std::io::{self, Cursor, Read};
+use std::pin::Pin;
+use std::time::{Duration, Instant};
+
+use crate::packet::*;
+use crate::protocol::*;
+use crate::router::{PacketSink, PacketStream};
+
+use futures_util::{Sink, SinkExt, Stream, StreamExt};
+use log::{debug, error, info, warn};
+use tokio::net::UnixListener;
+use tokio::sync::mpsc;
+use tokio_stream::wrappers::ReceiverStream;
+use tokio_util::sync::PollSender;
+use vhost_device_net::{IncomingPacket, VhostDeviceNet};
+use vm_memory::GuestMemoryMmap;
+use zerocopy::FromBytes;
+
+pub struct Upstream {
+ driver_listener: UnixListener,
+ active_interface: Option<u16>,
+ reevaluate_active_interface: Pin<Box<tokio::time::Sleep>>,
+ radv_valid_until: Vec<(u16, Instant)>,
+ tx_sender: mpsc::Sender<Packet<IncomingPacket<GuestMemoryMmap>>>,
+ rx_receiver: mpsc::Receiver<Packet<IncomingPacket<GuestMemoryMmap>>>,
+}
+
+impl Upstream {
+ pub fn new(
+ driver_listener: UnixListener,
+ ) -> (
+ Upstream,
+ PacketStream<GuestMemoryMmap>,
+ PacketSink<GuestMemoryMmap>,
+ ) {
+ let (tx_sender, tx_receiver) = mpsc::channel(64);
+ let (rx_sender, rx_receiver) = mpsc::channel(64);
+
+ (
+ Upstream {
+ driver_listener,
+ active_interface: None,
+ reevaluate_active_interface: Box::pin(tokio::time::sleep(Duration::from_hours(
+ 24 * 365,
+ ))),
+ radv_valid_until: Default::default(),
+ tx_sender,
+ rx_receiver,
+ },
+ Box::pin(ReceiverStream::new(tx_receiver).map(Ok)),
+ Box::pin(
+ PollSender::new(rx_sender)
+ .sink_map_err(|_| io::Error::other("driver rx channel closed")),
+ ),
+ )
+ }
+ pub async fn run(&mut self) -> io::Result<()> {
+ let mut device_tx: Option<Pin<Box<dyn Stream<Item = _> + Send>>> = None;
+ let mut device_rx: Option<Pin<Box<dyn Sink<_, Error = _> + Send>>> = None;
+ loop {
+ tokio::select! {
+ driver_conn = self.driver_listener.accept() => {
+ info!("driver connected");
+ match driver_conn {
+ Ok((stream, _addr)) => {
+ self.radv_valid_until.clear();
+ self.active_interface = None;
+ self.reevaluate_active_interface.as_mut().reset((Instant::now() + Duration::from_hours(24 * 365)).into());
+
+ let device = VhostDeviceNet::from_unix_stream(stream).await?;
+ device_tx = Some(Box::pin(device.tx().await?));
+ device_rx = Some(Box::pin(device.rx().await?));
+ }
+ Err(e) => error!("driver connection failed: {}", e),
+ }
+ }
+ tx_res = async { device_tx.as_mut().unwrap().next().await }, if device_tx.is_some() => {
+ let Some(Ok(buf)) = tx_res else {
+ info!("driver tx err");
+ continue;
+ };
+
+ let mut packet = Packet::Incoming { buf: Some(buf), decap_vlan: true };
+ let PacketHeaders { ether_frame, vlan_tag: vlan_in, ipv6_hdr, peek_slice, buf, .. } = packet.headers()?;
+
+ let Some(vlan_tag) = vlan_in else {
+ warn!("untagged packet from driver");
+ continue;
+ };
+
+ let vlan_id = u16::from(vlan_tag.tag_control_information) & 0xfff;
+
+ if let Some(ref ipv6_hdr) = ipv6_hdr && ipv6_hdr.next_header == IP_PROTO_ICMP6 {
+ let (icmpv6_hdr, icmpv6_data) = Icmpv6Header::ref_from_prefix(peek_slice).map_err(|_| io::Error::other("short icmpv6 header"))?;
+
+ if icmpv6_hdr.msg_type == ICMP6_TYPE_R_ADV {
+ let data = Cursor::new(icmpv6_data).chain(Cursor::new(buf.full_packet()));
+ let r_adv = Icmpv6RouterAdvertisement::read_from_io(data)?;
+ if r_adv.router_lifetime != 0 {
+ let now = Instant::now();
+ let r_adv_timeout = now + Duration::from_secs(u16::from(r_adv.router_lifetime).into());
+ match self.radv_valid_until.binary_search_by_key(&vlan_id, |&(if_idx, _)| if_idx) {
+ Ok(pos) => self.radv_valid_until[pos] = (vlan_id, r_adv_timeout),
+ Err(insert_pos) => self.radv_valid_until.insert(insert_pos, (vlan_id, r_adv_timeout)),
+ };
+ debug!("router advertisement received on interface {}: {:x?} {:x?} {:?}", vlan_id, ether_frame, ipv6_hdr, r_adv);
+
+ let prev_active_interface = self.active_interface.unwrap_or(u16::MAX);
+ if vlan_id < prev_active_interface || self.reevaluate_active_interface.deadline() < now.into() {
+ self.active_interface = Some(vlan_id);
+ info!("set active interface to {}", vlan_id);
+ self.reevaluate_active_interface.as_mut().reset(r_adv_timeout.into());
+ } else if vlan_id == prev_active_interface {
+ self.reevaluate_active_interface.as_mut().reset(r_adv_timeout.into());
+ }
+ }
+ }
+ }
+
+ if Some(vlan_id) != self.active_interface {
+ debug!("dropping packet from inactive interface {}", vlan_id);
+ continue;
+ }
+
+ self.tx_sender.send(packet).await.map_err(io::Error::other)?;
+ }
+ rx_res = self.rx_receiver.recv() => {
+ let Some(packet) = rx_res else {
+ info!("driver rx err");
+ continue;
+ };
+
+ let Some(sink) = device_rx.as_mut() else {
+ warn!("dropped packet because driver is not ready");
+ continue;
+ };
+
+ let Some(active_interface) = &self.active_interface else {
+ warn!("dropped packet because active interface is unknown");
+ continue;
+ };
+
+ // Add active interface vlan
+ let vlan_out = VlanTag {
+ ether_type: ETHER_TYPE_802_1Q.into(),
+ tag_control_information: (*active_interface).into(),
+ };
+
+ let packet = packet.out(Some(vlan_out))?;
+
+ match tokio::time::timeout(Duration::from_secs(1), sink.send(packet.into_reader())).await {
+ Err(_) => warn!("driver rx has been blocked for 1 sec, dropping packet"),
+ Ok(Err(e)) => return Err(e),
+ Ok(Ok(())) => {},
+ }
+ }
+ () = &mut self.reevaluate_active_interface => {
+ let now = Instant::now();
+ let prev_active_interface = self.active_interface.unwrap_or(u16::MAX);
+ info!("router advertisement expired on interface {}", prev_active_interface);
+ if let Some((if_idx, valid_until)) = self.radv_valid_until.iter().find(|(_, valid_until)| *valid_until > now) {
+ self.active_interface = Some(*if_idx);
+ info!("set active interface to {}", if_idx);
+ self.reevaluate_active_interface.as_mut().reset((*valid_until).into());
+ } else {
+ self.reevaluate_active_interface.as_mut().reset((now + Duration::from_hours(24 * 365)).into());
+ }
+ }
+ }
+ }
+ }
+}
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 07/10] host: integrate router
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (5 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 06/10] tools: add spectrum-router Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 08/10] img/app: change to ipv6 nameserver Yureka Lilian
` (2 subsequent siblings)
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
This removes the old host bridge + taps glue, and instead connects the
apps to their net provider's router instance.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
---
host/rootfs/default.nix | 4 +-
host/rootfs/file-list.mk | 2 +
.../data/service/spectrum-router/down | 0
.../template/data/service/spectrum-router/run | 9 +++
host/rootfs/image/usr/bin/run-vmm | 21 +++---
host/rootfs/image/usr/bin/vm-import | 13 ----
tools/start-vmm/ch.rs | 66 +----------------
tools/start-vmm/lib.rs | 73 ++++++++++++-------
tools/start-vmm/meson.build | 9 +--
tools/start-vmm/net-util.c | 39 ----------
tools/start-vmm/net-util.h | 6 --
tools/start-vmm/net.c | 55 --------------
tools/start-vmm/net.rs | 11 ---
tools/start-vmm/tests/meson.build | 5 --
.../start-vmm/tests/tap_open-name-too-long.c | 20 -----
tools/start-vmm/tests/tap_open.c | 28 -------
16 files changed, 77 insertions(+), 284 deletions(-)
create mode 100644 host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/down
create mode 100755 host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run
delete mode 100644 tools/start-vmm/net-util.c
delete mode 100644 tools/start-vmm/net-util.h
delete mode 100644 tools/start-vmm/net.c
delete mode 100644 tools/start-vmm/tests/tap_open-name-too-long.c
delete mode 100644 tools/start-vmm/tests/tap_open.c
diff --git a/host/rootfs/default.nix b/host/rootfs/default.nix
index b441a51..a759568 100644
--- a/host/rootfs/default.nix
+++ b/host/rootfs/default.nix
@@ -8,7 +8,7 @@ import ../../lib/call-package.nix (
}:
pkgsMusl.callPackage (
-{ spectrum-host-tools
+{ spectrum-host-tools, spectrum-router
, lib, stdenvNoCC, nixos, runCommand, writeClosure, erofs-utils, s6-rc
, busybox, cloud-hypervisor, cosmic-files, crosvm, cryptsetup
, dejavu_fonts, dbus, execline, foot, fuse3, iproute2, inotify-tools
@@ -27,7 +27,7 @@ let
packages = [
btrfs-progs cloud-hypervisor cosmic-files crosvm cryptsetup dbus
execline fuse3 inotify-tools iproute2 jq kmod mdevd s6 s6-linux-init
- s6-rc socat spectrum-host-tools util-linuxMinimal virtiofsd
+ s6-rc socat spectrum-host-tools spectrum-router util-linuxMinimal virtiofsd
xdg-desktop-portal-spectrum-host
(foot.override { allowPgo = false; })
diff --git a/host/rootfs/file-list.mk b/host/rootfs/file-list.mk
index 56f693e..bfe3940 100644
--- a/host/rootfs/file-list.mk
+++ b/host/rootfs/file-list.mk
@@ -27,6 +27,8 @@ FILES = \
image/etc/s6-linux-init/run-image/service/vm-services/run \
image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/dbus/notification-fd \
image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/dbus/run \
+ image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/down \
+ image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run \
image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/vhost-user-fs/notification-fd \
image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/vhost-user-fs/run \
image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/vhost-user-gpu/notification-fd \
diff --git a/host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/down b/host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/down
new file mode 100644
index 0000000..e69de29
diff --git a/host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run b/host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run
new file mode 100755
index 0000000..7b3e3db
--- /dev/null
+++ b/host/rootfs/image/etc/s6-linux-init/run-image/service/vm-services/template/data/service/spectrum-router/run
@@ -0,0 +1,9 @@
+#!/bin/execlineb -P
+# SPDX-License-Identifier: EUPL-1.2+
+# SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
+
+importas -i VM VM
+
+export RUST_LOG spectrum-router=debug,info
+spectrum-router --app-listen-path ${VM}/router-app.sock --driver-listen-path ${VM}/router-driver.sock
+
diff --git a/host/rootfs/image/usr/bin/run-vmm b/host/rootfs/image/usr/bin/run-vmm
index 5649674..ba8b59c 100755
--- a/host/rootfs/image/usr/bin/run-vmm
+++ b/host/rootfs/image/usr/bin/run-vmm
@@ -20,6 +20,7 @@ background -d {
assign-devices
}
+ # Find any net-provider relationships this VM is involved in
cd /run/vm/by-id
elglob -0 providers */config/providers/net/*
forx -pE path { $providers }
@@ -31,23 +32,21 @@ background -d {
backtick -E link_path { readlink /run/vm/by-name/${router} }
basename -- $link_path
}
-
+ # This VM may be either the driver or the client
if -n {
if { test $client_id != $1 }
test $router_id != $1
}
- backtick -E mac {
- pipeline { ip -j link show client-${client_id} }
- pipeline { jq -r ".[].ifindex" }
- awk "{
- printf \"02:01:%02X:%02X:%02X:%02X\", $0 / 256 ^ 3 % 256,
- $0 / 256 ^ 2 % 256, $0 / 256 % 256, $0 % 256
- }"
+ if {
+ s6-svc -U /run/service/vm-services/instance/${router_id}/data/service/spectrum-router
}
-
- ch-remote --api-socket /run/vm/by-id/${router_id}/vmm add-net
- id=router-${client_id},tap=router-${client_id},mac=${mac}
+ if {
+ s6-svwait -U /run/service/vmm/instance/${router_id}
+ }
+ # Adding the interface is re-entrant and may be called multiple times. Thus, accept failures.
+ redirfd -w 2 /dev/null
+ ch-remote --api-socket /run/vm/by-id/${router_id}/vmm add-net id=router,vhost_user=on,socket=/run/vm/by-id/${router_id}/router-driver.sock,mac=02:01:00:00:00:01
}
unexport !
fdmove -c 3 0
diff --git a/host/rootfs/image/usr/bin/vm-import b/host/rootfs/image/usr/bin/vm-import
index de88f08..c1d1bbc 100755
--- a/host/rootfs/image/usr/bin/vm-import
+++ b/host/rootfs/image/usr/bin/vm-import
@@ -14,19 +14,6 @@ if { ln -s -- ${dir} /run/vm/by-name/${1}.${name} }
if { ln -s -- ${2}/${name} ${dir}/config }
if { ln -s -- /run/service/vmm/instance/${id} ${dir}/service }
-if {
- if -t { elglob -0d " " providers ${name}/providers/net test -n $providers }
-
- if { ip link add br-${id} type bridge }
- if { ip link set br-${id} up }
-
- if { ip tuntap add client-${id} mode tap }
- if { ip link set client-${id} master br-${id} up }
-
- if { ip tuntap add router-${id} mode tap }
- ip link set router-${id} master br-${id} up
-}
-
if { create-vm-dependencies $id }
s6-instance-create -- /run/service/vmm $id
diff --git a/tools/start-vmm/ch.rs b/tools/start-vmm/ch.rs
index abe1742..4764dd5 100644
--- a/tools/start-vmm/ch.rs
+++ b/tools/start-vmm/ch.rs
@@ -1,26 +1,19 @@
// SPDX-License-Identifier: EUPL-1.2+
// SPDX-FileCopyrightText: 2022-2024 Alyssa Ross <hi@alyssa.is>
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
-use std::convert::TryFrom;
use std::ffi::OsStr;
use std::fs::File;
use std::io::Write;
-use std::mem::take;
-use std::num::NonZeroI32;
use std::os::unix::prelude::*;
use std::path::Path;
use std::process::{Command, Stdio};
-use std::string::FromUtf8Error;
use miniserde::{Serialize, json};
use crate::net::MacAddress;
use crate::s6::notify_readiness;
-// Trivially safe.
-const EPERM: NonZeroI32 = NonZeroI32::new(1).unwrap();
-const EPROTO: NonZeroI32 = NonZeroI32::new(71).unwrap();
-
#[derive(Serialize)]
pub struct ConsoleConfig {
pub mode: &'static str,
@@ -46,7 +39,8 @@ pub struct GpuConfig {
#[derive(Serialize)]
pub struct NetConfig {
- pub fd: RawFd,
+ pub vhost_user: bool,
+ pub vhost_socket: String,
pub id: String,
pub mac: MacAddress,
}
@@ -99,11 +93,7 @@ fn command(vm_dir: &Path, s: impl AsRef<OsStr>) -> Command {
command
}
-pub fn create_vm(vm_dir: &Path, ready_fd: File, mut config: VmConfig) -> Result<(), String> {
- // Net devices can't be created from file descriptors in vm.create.
- // https://github.com/cloud-hypervisor/cloud-hypervisor/issues/5523
- let nets = take(&mut config.net);
-
+pub fn create_vm(vm_dir: &Path, ready_fd: File, config: VmConfig) -> Result<(), String> {
let mut ch_remote = command(vm_dir, "create")
.args(["--", "-"])
.stdin(Stdio::piped())
@@ -128,53 +118,5 @@ pub fn create_vm(vm_dir: &Path, ready_fd: File, mut config: VmConfig) -> Result<
notify_readiness(ready_fd)?;
- for net in nets {
- add_net(vm_dir, &net).map_err(|e| format!("failed to add net: {e}"))?;
- }
-
Ok(())
}
-
-pub fn add_net(vm_dir: &Path, net: &NetConfig) -> Result<(), NonZeroI32> {
- let mut ch_remote = command(vm_dir, "add-net")
- .arg(format!("fd={},id={},mac={}", net.fd, net.id, net.mac))
- .stdout(Stdio::piped())
- .spawn()
- .or(Err(EPERM))?;
-
- if let Ok(ch_remote_status) = ch_remote.wait()
- && ch_remote_status.success()
- {
- return Ok(());
- }
-
- Err(EPROTO)
-}
-
-#[repr(C)]
-pub struct NetConfigC {
- pub fd: RawFd,
- pub id: [u8; 18],
- pub mac: MacAddress,
-}
-
-impl<'a> TryFrom<&'a NetConfigC> for NetConfig {
- type Error = FromUtf8Error;
-
- fn try_from(c: &'a NetConfigC) -> Result<NetConfig, Self::Error> {
- let nul_index = c.id.iter().position(|&c| c == 0).unwrap_or(c.id.len());
- Ok(NetConfig {
- fd: c.fd,
- id: String::from_utf8(c.id[..nul_index].to_vec())?,
- mac: c.mac,
- })
- }
-}
-
-impl TryFrom<NetConfigC> for NetConfig {
- type Error = FromUtf8Error;
-
- fn try_from(c: NetConfigC) -> Result<NetConfig, Self::Error> {
- Self::try_from(&c)
- }
-}
diff --git a/tools/start-vmm/lib.rs b/tools/start-vmm/lib.rs
index 0422d85..b44e037 100644
--- a/tools/start-vmm/lib.rs
+++ b/tools/start-vmm/lib.rs
@@ -1,23 +1,24 @@
// SPDX-License-Identifier: EUPL-1.2+
// SPDX-FileCopyrightText: 2022-2024 Alyssa Ross <hi@alyssa.is>
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
mod ch;
mod net;
mod s6;
use std::borrow::Cow;
-use std::convert::TryInto;
use std::env::args_os;
use std::ffi::OsStr;
use std::fs::File;
-use std::io::{self, ErrorKind};
+use std::hash::{Hash, Hasher};
+use std::io::ErrorKind;
use std::path::Path;
use ch::{
- ConsoleConfig, DiskConfig, FsConfig, GpuConfig, LandlockConfig, MemoryConfig, PayloadConfig,
- VmConfig, VsockConfig,
+ ConsoleConfig, DiskConfig, FsConfig, GpuConfig, LandlockConfig, MemoryConfig, NetConfig,
+ PayloadConfig, VmConfig, VsockConfig,
};
-use net::net_setup;
+use net::MacAddress;
pub fn prog_name() -> String {
args_os()
@@ -40,8 +41,6 @@ pub fn vm_config(vm_dir: &Path) -> Result<VmConfig, String> {
return Err(format!("VM name may not contain a colon: {vm_name:?}"));
}
- let name_bytes = vm_name.as_bytes();
-
let config_dir = vm_dir.join("config");
let blk_dir = config_dir.join("blk");
let kernel_path = config_dir.join("vmlinux");
@@ -97,24 +96,48 @@ pub fn vm_config(vm_dir: &Path) -> Result<VmConfig, String> {
shared: true,
},
net: match net_providers_dir.read_dir() {
- Ok(_) => {
- // SAFETY: we check the result.
- let net = unsafe {
- net_setup(
- name_bytes.as_ptr().cast(),
- name_bytes
- .len()
- .try_into()
- .map_err(|e| format!("VM name too long: {e}"))?,
- )
- };
- if net.fd == -1 {
- let e = io::Error::last_os_error();
- return Err(format!("setting up networking failed: {e}"));
- }
-
- vec![net.try_into().unwrap()]
- }
+ Ok(entries) => entries
+ .into_iter()
+ .map(|result| {
+ Ok(result
+ .map_err(|e| format!("examining directory entry: {e}"))?
+ .path())
+ })
+ .map(|result: Result<_, String>| {
+ let provider_name = result?
+ .file_name()
+ .ok_or("unable to get net provider name".to_string())?
+ .to_str()
+ .unwrap()
+ .to_string();
+
+ if provider_name.contains(',') {
+ return Err(format!(
+ "illegal ',' character in net provider name {provider_name:?}"
+ ));
+ }
+
+ let mut hasher = std::hash::DefaultHasher::new();
+ vm_name.hash(&mut hasher);
+ let id_hashed = hasher.finish();
+
+ let mac = MacAddress::new([
+ 0x02, // IEEE 802c administratively assigned
+ 0x00, // Spectrum client
+ (id_hashed >> 24) as u8,
+ (id_hashed >> 16) as u8,
+ (id_hashed >> 8) as u8,
+ id_hashed as u8,
+ ]);
+
+ Ok(NetConfig {
+ vhost_user: true,
+ vhost_socket: format!("/run/vm/by-name/{provider_name}/router-app.sock"),
+ id: provider_name,
+ mac,
+ })
+ })
+ .collect::<Result<_, _>>()?,
Err(e) if e.kind() == ErrorKind::NotFound => Default::default(),
Err(e) => return Err(format!("reading directory {net_providers_dir:?}: {e}")),
},
diff --git a/tools/start-vmm/meson.build b/tools/start-vmm/meson.build
index d07c5a0..4c79f5d 100644
--- a/tools/start-vmm/meson.build
+++ b/tools/start-vmm/meson.build
@@ -1,12 +1,8 @@
# SPDX-License-Identifier: EUPL-1.2+
# SPDX-FileCopyrightText: 2022-2024 Alyssa Ross <hi@alyssa.is>
-c_lib = static_library('start-vmm', 'net.c', 'net-util.c',
- c_args : '-D_GNU_SOURCE')
-
rust_lib = static_library('start_vmm', 'lib.rs',
- dependencies : miniserde_dep,
- link_with : c_lib)
+ dependencies : miniserde_dep)
rust_lib_dep = declare_dependency(
dependencies : miniserde_dep,
@@ -20,8 +16,7 @@ executable('start-vmm', 'start-vmm.rs',
if get_option('tests')
test_exe = executable('start-vmm-test', 'lib.rs',
dependencies : miniserde_dep,
- rust_args : ['--test'],
- link_with : c_lib)
+ rust_args : ['--test'])
test('Rust unit tests', test_exe, protocol : 'rust')
subdir('tests')
diff --git a/tools/start-vmm/net-util.c b/tools/start-vmm/net-util.c
deleted file mode 100644
index 49003e9..0000000
--- a/tools/start-vmm/net-util.c
+++ /dev/null
@@ -1,39 +0,0 @@
-// SPDX-License-Identifier: EUPL-1.2+
-// SPDX-FileCopyrightText: 2022, 2024 Alyssa Ross <hi@alyssa.is>
-
-#include "net-util.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <sys/ioctl.h>
-
-#include <linux/if_tun.h>
-
-int tap_open(char name[static IFNAMSIZ], int flags)
-{
- struct ifreq ifr;
- int fd, e;
-
- if (strnlen(name, IFNAMSIZ) == IFNAMSIZ) {
- errno = ENAMETOOLONG;
- return -1;
- }
-
- strncpy(ifr.ifr_name, name, IFNAMSIZ - 1);
- ifr.ifr_flags = IFF_TAP|flags;
-
- if ((fd = open("/dev/net/tun", O_RDWR)) == -1)
- return -1;
- if (ioctl(fd, TUNSETIFF, &ifr) == -1) {
- e = errno;
- close(fd);
- errno = e;
- return -1;
- }
-
- strncpy(name, ifr.ifr_name, IFNAMSIZ);
- return fd;
-}
diff --git a/tools/start-vmm/net-util.h b/tools/start-vmm/net-util.h
deleted file mode 100644
index 8f55206..0000000
--- a/tools/start-vmm/net-util.h
+++ /dev/null
@@ -1,6 +0,0 @@
-// SPDX-License-Identifier: EUPL-1.2+
-// SPDX-FileCopyrightText: 2022 Alyssa Ross <hi@alyssa.is>
-
-#include <net/if.h>
-
-int tap_open(char name[static IFNAMSIZ], int flags);
diff --git a/tools/start-vmm/net.c b/tools/start-vmm/net.c
deleted file mode 100644
index 78fe7f6..0000000
--- a/tools/start-vmm/net.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: EUPL-1.2+
-// SPDX-FileCopyrightText: 2022-2024 Alyssa Ross <hi@alyssa.is>
-
-#include "ch.h"
-#include "net-util.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <arpa/inet.h>
-
-#include <linux/if_tun.h>
-
-static int get_tap_name(char tap_name[static IFNAMSIZ],
- const char tap_prefix[static 1],
- const char name[static 1], int name_len)
-{
- int r = snprintf(tap_name, IFNAMSIZ, "%s-%*s", tap_prefix, name_len, name);
- if (r >= IFNAMSIZ)
- errno = ENAMETOOLONG;
- return r < 0 || r >= IFNAMSIZ ? -1 : 0;
-}
-
-struct net_config net_setup(const char name[static 1], int name_len)
-{
- int e;
- unsigned int client_index;
- struct net_config r = { .fd = -1, .mac = { 0 } };
-
- if ((get_tap_name(r.id, "client", name, name_len)) == -1)
- return r;
-
- if (!(client_index = htonl(if_nametoindex(r.id))))
- return r;
-
- if ((r.fd = tap_open(r.id, IFF_NO_PI|IFF_VNET_HDR)) == -1)
- goto fail_close;
-
- r.mac[0] = 0x02; // IEEE 802c administratively assigned
- r.mac[1] = 0x00; // Spectrum client
- memcpy(&r.mac[2], &client_index, 4);
-
- return r;
-
-fail_close:
- e = errno;
- close(r.fd);
- errno = e;
- r.fd = -1;
- return r;
-}
diff --git a/tools/start-vmm/net.rs b/tools/start-vmm/net.rs
index ebfef7a..7b237df 100644
--- a/tools/start-vmm/net.rs
+++ b/tools/start-vmm/net.rs
@@ -2,14 +2,11 @@
// SPDX-FileCopyrightText: 2022-2025 Alyssa Ross <hi@alyssa.is>
use std::borrow::Cow;
-use std::ffi::{c_char, c_int};
use std::fmt::{self, Display, Formatter};
use miniserde::Serialize;
use miniserde::ser::Fragment;
-use crate::ch::NetConfigC;
-
#[repr(transparent)]
#[derive(Copy, Clone)]
pub struct MacAddress([u8; 6]);
@@ -36,14 +33,6 @@ impl Serialize for MacAddress {
}
}
-// SAFETY: declaration is compatible with C.
-unsafe extern "C" {
- /// # Safety
- ///
- /// The rest of the result is only valid if the returned fd is not -1.
- pub fn net_setup(name: *const c_char, len: c_int) -> NetConfigC;
-}
-
#[cfg(test)]
mod tests {
use super::*;
diff --git a/tools/start-vmm/tests/meson.build b/tools/start-vmm/tests/meson.build
index bfdfc46..5538822 100644
--- a/tools/start-vmm/tests/meson.build
+++ b/tools/start-vmm/tests/meson.build
@@ -4,11 +4,6 @@
rust_helper = static_library('test_helper', 'helper.rs',
dependencies : rust_lib_dep)
-test('tap_open', executable('tap_open', 'tap_open.c', '../net-util.c',
- c_args : '-D_GNU_SOURCE'))
-test('tap_open (name too long)', executable('tap_open-name-too-long',
- 'tap_open-name-too-long.c', '../net-util.c', c_args : '-D_GNU_SOURCE'))
-
test('vm_command-basic', executable('vm_command-basic',
'vm_command-basic.rs',
dependencies : rust_lib_dep,
diff --git a/tools/start-vmm/tests/tap_open-name-too-long.c b/tools/start-vmm/tests/tap_open-name-too-long.c
deleted file mode 100644
index ba4ebd6..0000000
--- a/tools/start-vmm/tests/tap_open-name-too-long.c
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: EUPL-1.2+
-// SPDX-FileCopyrightText: 2022 Alyssa Ross <hi@alyssa.is>
-
-#include "../net-util.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <net/if.h>
-#include <string.h>
-
-int main(void)
-{
- char name[IFNAMSIZ];
- int fd;
-
- memset(name, 'a', sizeof name);
- fd = tap_open(name, 0);
- assert(fd == -1);
- assert(errno == ENAMETOOLONG);
-}
diff --git a/tools/start-vmm/tests/tap_open.c b/tools/start-vmm/tests/tap_open.c
deleted file mode 100644
index bf5d00c..0000000
--- a/tools/start-vmm/tests/tap_open.c
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-License-Identifier: EUPL-1.2+
-// SPDX-FileCopyrightText: 2022 Alyssa Ross <hi@alyssa.is>
-
-#include "../net-util.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <sched.h>
-#include <string.h>
-
-#include <sys/ioctl.h>
-
-#include <linux/if_tun.h>
-
-int main(void)
-{
- char name[IFNAMSIZ] = "tap%d";
- struct ifreq ifr;
- int fd;
-
- unshare(CLONE_NEWUSER|CLONE_NEWNET);
-
- fd = tap_open(name, 0);
- if (fd == -1 && (errno == EPERM || errno == ENOENT))
- return 77;
- assert(!ioctl(fd, (unsigned)TUNGETIFF, &ifr));
- assert(!strcmp(name, ifr.ifr_name));
-}
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 08/10] img/app: change to ipv6 nameserver
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (6 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 07/10] host: integrate router Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6 Yureka Lilian
2025-11-29 19:44 ` [PATCH v4 10/10] release/checks/integration: reenable networking tests Yureka Lilian
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian, Alyssa Ross
Also remove hard-coded ipv4 default route.
Eventually this will be changed to have both ipv4 and ipv6 nameserver,
and support IPv4 with the new router.
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
Reviewed-by: Alyssa Ross <hi@alyssa.is>
---
img/app/image/etc/mdev/iface | 19 +------------------
img/app/image/etc/resolv.conf | 2 +-
2 files changed, 2 insertions(+), 19 deletions(-)
diff --git a/img/app/image/etc/mdev/iface b/img/app/image/etc/mdev/iface
index 95f2fa8..1d81f2a 100755
--- a/img/app/image/etc/mdev/iface
+++ b/img/app/image/etc/mdev/iface
@@ -4,22 +4,5 @@
background {
importas -Si INTERFACE
-
- # Our IP is encoded in the NIC-specific portion of the interface's MAC
- # address.
- backtick -E LOCAL_IP {
- awk -PF: "
- BEGIN { ex = 1 }
- $1 == \"02\" && $2 == \"00\" {
- printf \"100.64.%d.%d\\n\", \"0x\" $5, \"0x\" $6
- ex = 0
- }
- END { exit ex }
- " /sys/class/net/${INTERFACE}/address
- }
-
- if { ip address add ${LOCAL_IP}/32 dev $INTERFACE }
- if { ip link set $INTERFACE up }
- if { ip route add 169.254.0.1 dev $INTERFACE }
- ip route add default via 169.254.0.1 dev $INTERFACE
+ ip link set $INTERFACE up
}
diff --git a/img/app/image/etc/resolv.conf b/img/app/image/etc/resolv.conf
index 7fcdf3a..e82c3d0 100644
--- a/img/app/image/etc/resolv.conf
+++ b/img/app/image/etc/resolv.conf
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: CC0-1.0
# SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>
-nameserver 1.1.1.1
+nameserver 2606:4700:4700::1111
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (7 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 08/10] img/app: change to ipv6 nameserver Yureka Lilian
@ 2025-11-29 19:43 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:44 ` [PATCH v4 10/10] release/checks/integration: reenable networking tests Yureka Lilian
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:43 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian, Alyssa Ross
Signed-off-by: Yureka Lilian <yureka@cyberchaos.dev>
Reviewed-by: Alyssa Ross <hi@alyssa.is>
---
release/checks/integration/default.nix | 2 +-
release/checks/integration/networking.c | 33 +++++++++++++++++++------
2 files changed, 27 insertions(+), 8 deletions(-)
diff --git a/release/checks/integration/default.nix b/release/checks/integration/default.nix
index 842b707..f8aab8a 100644
--- a/release/checks/integration/default.nix
+++ b/release/checks/integration/default.nix
@@ -19,7 +19,7 @@ let
type = "nix";
run = writeShellScript "run" ''
set -x
- while :; do echo hello | ${libressl.nc}/bin/nc -Nw 2 10.0.2.2 1234; done
+ while :; do echo hello | ${libressl.nc}/bin/nc -Nw 2 -6 fd00::2 1234; done
'';
};
diff --git a/release/checks/integration/networking.c b/release/checks/integration/networking.c
index 97d7895..bc75ece 100644
--- a/release/checks/integration/networking.c
+++ b/release/checks/integration/networking.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: EUPL-1.2+
// SPDX-FileCopyrightText: 2025 Alyssa Ross <hi@alyssa.is>
+// SPDX-FileCopyrightText: 2025 Yureka Lilian <yureka@cyberchaos.dev>
#include "lib.h"
@@ -12,21 +13,27 @@
#include <net/if.h>
#include <sys/ioctl.h>
+#include <linux/ipv6.h>
static int setup_server(void)
{
int fd;
struct ifreq ifr;
+ struct in6_ifreq ifr6;
- struct sockaddr_in addr = {
- .sin_family = AF_INET,
- .sin_port = htons(1234),
- .sin_addr = { .s_addr = htonl(INADDR_LOOPBACK) },
+ struct sockaddr_in6 addr = {
+ .sin6_family = AF_INET6,
+ .sin6_port = htons(1234),
+ .sin6_addr = { .s6_addr = { 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 } },
};
sprintf(ifr.ifr_name, "lo");
- if ((fd = socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0)) == -1) {
+ ifr6.ifr6_ifindex = 1;
+ ifr6.ifr6_addr = addr.sin6_addr;
+ ifr6.ifr6_prefixlen = 128;
+
+ if ((fd = socket(AF_INET6, SOCK_STREAM|SOCK_CLOEXEC, 0)) == -1) {
perror("socket");
exit(EXIT_FAILURE);
}
@@ -42,11 +49,23 @@ static int setup_server(void)
exit(EXIT_FAILURE);
}
- if (bind(fd, &addr, sizeof addr) == -1) {
- perror("bind");
+ if (ioctl(fd, SIOCSIFADDR, &ifr6) == -1) {
+ perror("SIOCSIFADDR");
+ exit(EXIT_FAILURE);
+ }
+
+ if ((fd = socket(AF_INET6, SOCK_STREAM|SOCK_CLOEXEC, 0)) == -1) {
+ perror("socket");
exit(EXIT_FAILURE);
}
+ int tries = 0;
+ while (bind(fd, &addr, sizeof addr) == -1) {
+ perror("bind");
+ if (tries++ >= 5)
+ exit(EXIT_FAILURE);
+ }
+
if (listen(fd, 1) == -1) {
perror("listen");
exit(EXIT_FAILURE);
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v4 10/10] release/checks/integration: reenable networking tests
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
` (8 preceding siblings ...)
2025-11-29 19:43 ` [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6 Yureka Lilian
@ 2025-11-29 19:44 ` Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
9 siblings, 1 reply; 21+ messages in thread
From: Yureka Lilian @ 2025-11-29 19:44 UTC (permalink / raw)
To: devel; +Cc: Yureka Lilian
This reverts commit d8a5ef0a334667dbe87c673a80a1d525510f7e69.
---
release/checks/integration/meson.build | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/release/checks/integration/meson.build b/release/checks/integration/meson.build
index 8938728..7bf8f51 100644
--- a/release/checks/integration/meson.build
+++ b/release/checks/integration/meson.build
@@ -11,12 +11,7 @@ run_qemu = find_program('../../../scripts/run-qemu.sh')
lib = static_library('spectrum-integration-test', 'lib.c')
-foreach test : [
- 'appimage',
- 'late-serial',
- # 'networking',
- 'portal',
-]
+foreach test : ['appimage', 'late-serial', 'networking', 'portal']
test(test, executable(test, test + '.c', link_with : lib),
timeout : 400,
args : [run_qemu])
--
2.51.2
^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests
2025-11-29 19:43 ` [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian
This patch has been committed as a8794ccbfb1ec8c5e2c73def590bd70ab288d790,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=a8794ccbfb1ec8c5e2c73def590bd70ab288d790.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 02/10] vm/sys/net: remove connman
2025-11-29 19:43 ` [PATCH v4 02/10] vm/sys/net: remove connman Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian, Alyssa Ross
This patch has been committed as d0721e528aedc41ad3be928ababf4024c00e4c2a,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=d0721e528aedc41ad3be928ababf4024c00e4c2a.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 03/10] pkgs: temporarily disable mailutils tests
2025-11-29 19:43 ` [PATCH v4 03/10] pkgs: temporarily disable mailutils tests Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian
This patch has been committed as 6849d6e37da686fdb174001c637fe26fe7728843,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=6849d6e37da686fdb174001c637fe26fe7728843.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
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* Re: [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder
2025-11-29 19:43 ` [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian, Alyssa Ross
This patch has been committed as dcee9414db0977aaccfdb1da6010f82a6044194f,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=dcee9414db0977aaccfdb1da6010f82a6044194f.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 05/10] vm/sys/net: add iwd
2025-11-29 19:43 ` [PATCH v4 05/10] vm/sys/net: add iwd Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian, Alyssa Ross
This patch has been committed as 8b0ae3f449fccfe6da74df9f532ccb93be8ecc6b,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=8b0ae3f449fccfe6da74df9f532ccb93be8ecc6b.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 06/10] tools: add spectrum-router
2025-11-29 19:43 ` [PATCH v4 06/10] tools: add spectrum-router Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian
This patch has been committed as 5e69c680f678c12d7cc2ed5197788fc5e2367fc7,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=5e69c680f678c12d7cc2ed5197788fc5e2367fc7.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 07/10] host: integrate router
2025-11-29 19:43 ` [PATCH v4 07/10] host: integrate router Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian
This patch has been committed as 59d9caa0f72f321eb2c08b64cac76604d4422a94,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=59d9caa0f72f321eb2c08b64cac76604d4422a94.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 08/10] img/app: change to ipv6 nameserver
2025-11-29 19:43 ` [PATCH v4 08/10] img/app: change to ipv6 nameserver Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian, Alyssa Ross
This patch has been committed as 076b5d281aa9ee54f5c9647ea922bac3f4cd70db,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=076b5d281aa9ee54f5c9647ea922bac3f4cd70db.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6
2025-11-29 19:43 ` [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6 Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian, Alyssa Ross
This patch has been committed as cdf1891ea3158147f9ffbb1695015fbb978efa26,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=cdf1891ea3158147f9ffbb1695015fbb978efa26.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v4 10/10] release/checks/integration: reenable networking tests
2025-11-29 19:44 ` [PATCH v4 10/10] release/checks/integration: reenable networking tests Yureka Lilian
@ 2025-11-30 16:08 ` Alyssa Ross
0 siblings, 0 replies; 21+ messages in thread
From: Alyssa Ross @ 2025-11-30 16:08 UTC (permalink / raw)
To: Yureka Lilian, devel; +Cc: Yureka Lilian
This patch has been committed as 3bb657641c93267f95ec9b7e234d22a3c6864099,
which can be viewed online at
https://spectrum-os.org/git/spectrum/commit/?id=3bb657641c93267f95ec9b7e234d22a3c6864099.
This is an automated message. Send comments/questions/requests to:
Alyssa Ross <hi@alyssa.is>
^ permalink raw reply [flat|nested] 21+ messages in thread
end of thread, other threads:[~2025-11-30 16:09 UTC | newest]
Thread overview: 21+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-11-29 19:43 [PATCH v4 00/10] spectrum-router Yureka Lilian
2025-11-29 19:43 ` [PATCH v4 01/10] release/checks/integration: temporarily disable networking tests Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 02/10] vm/sys/net: remove connman Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 03/10] pkgs: temporarily disable mailutils tests Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 04/10] vm/sys/net: integrate xdp-forwarder Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 05/10] vm/sys/net: add iwd Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 06/10] tools: add spectrum-router Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 07/10] host: integrate router Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 08/10] img/app: change to ipv6 nameserver Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:43 ` [PATCH v4 09/10] release/checks/integration: Adapt networking test for ipv6 Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
2025-11-29 19:44 ` [PATCH v4 10/10] release/checks/integration: reenable networking tests Yureka Lilian
2025-11-30 16:08 ` Alyssa Ross
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