Add setUploadLimit method to athena (#23693)

* Add setUploadLimit method to athena

* add comments

* move to hw abstraction layer

* move to hw

* better errors
old-commit-hash: 4c406cdbe5

selfdrive/athena/athenad.py

@@ -12,6 +12,7 @@ import socket
 import threading
 import time
 import tempfile
+import subprocess
 from collections import namedtuple
 from functools import partial
 from typing import Any, Dict
@@ -27,7 +28,7 @@ from common.file_helpers import CallbackReader
 from common.basedir import PERSIST
 from common.params import Params
 from common.realtime import sec_since_boot
-from selfdrive.hardware import HARDWARE, PC
+from selfdrive.hardware import HARDWARE, PC, TICI
 from selfdrive.loggerd.config import ROOT
 from selfdrive.loggerd.xattr_cache import getxattr, setxattr
 from selfdrive.swaglog import cloudlog, SWAGLOG_DIR
@@ -329,6 +330,18 @@ def primeActivated(activated):
   return {"success": 1}
 
 
+@dispatcher.add_method
+def setUploadLimit(speed_kbps):
+  if not TICI:
+    return {"success": 0, "error": "only supported on comma three"}
+
+  try:
+    HARDWARE.set_upload_limit(speed_kbps)
+    return {"success": 1}
+  except subprocess.CalledProcessError as e:
+    return {"success": 0, "error": "failed to set limit", "stdout": e.stdout, "stderr": e.stderr}
+
+
 def startLocalProxy(global_end_event, remote_ws_uri, local_port):
   try:
     if local_port not in LOCAL_PORT_WHITELIST:

selfdrive/hardware/base.py

@@ -67,6 +67,10 @@ class HardwareBase(ABC):
   def get_network_strength(self, network_type):
     pass
 
+  @staticmethod
+  def set_upload_limit(speed_kbps: int) -> None:
+    pass
+
   @abstractmethod
   def get_battery_capacity(self):
     pass

selfdrive/hardware/tici/hardware.py

@@ -218,6 +218,35 @@ class Tici(HardwareBase):
 
     return network_strength
 
+  @staticmethod
+  def set_upload_limit(speed_kbps: int) -> None:
+    speed_kbps = int(speed_kbps)  # Ensure integer value
+
+    adapter = "wwan0"
+    tc = ["sudo", "tc"]
+
+    # check, cmd
+    commands = [
+      # Clean up old rules
+      (False, tc + ["qdisc", "del", "dev", adapter, "root"]),
+
+      # Create root Hierarchy Token Bucket that sends all trafic to 1:20
+      (True, tc + ["qdisc", "add", "dev", adapter, "root", "handle", "1:", "htb", "default", "20"]),
+
+      # Create class 1:20 with specified rate limit
+      (True, tc + ["class", "add", "dev", adapter, "parent", "1:", "classid", "1:20", "htb", "rate", f"{speed_kbps}kbit"]),
+
+      # Create universal 32 bit filter on adapter that sends all outbound ip traffic through the class
+      (True, tc + ["filter", "add", "dev", adapter, "parent", "1:", "protocol", "ip", "prio", "10", "u32", "match", "ip", "dst", "0.0.0.0/0", "flowid", "1:20"]),
+    ]
+
+    # Disable limits
+    if speed_kbps == -1:
+      commands = commands[:1]
+
+    for check, cmd in commands:
+      subprocess.run(cmd, check=check)
+
   def get_modem_version(self):
     try:
       modem = self.get_modem()