tree 63ac86177714ebb61858e548a58092ad2b647c61
parent 3dc0577ed3e30852fd6809ed5d84da1e7d586e1b
author Hungming Chen <nuccachen@google.com> 1647496125 +0800
committer Hungming Chen <nuccachen@google.com> 1648713882 +0800

ClatCoordinator: use Java class TcUtils to detach program

This a preparation to replace duplicated native functions with the
existing Java class.

Bug: 221213090
Test: atest FrameworksNetTests
Test: manual test
Steps:
1. Connect to IPv6-only wifi

2. Check tc filter on wlan0 and v4-wlan0

$ adb shell tc filter show dev wlan0 ingress
filter protocol ipv6 pref 4 bpf chain 0
filter protocol ipv6 pref 4 bpf chain 0 handle 0x1 prog_clatd_schedcls_ingress6_clat_ether:[*fsobj] direct-action not_in_hw id 23 tag 40918e0675598c8d

$ adb shell tc filter show dev v4-wlan0 egress
filter protocol ip pref 4 bpf chain 0
filter protocol ip pref 4 bpf chain 0 handle 0x1 prog_clatd_schedcls_egress4_clat_rawip:[*fsobj] direct-action not_in_hw id 26 tag 5d0057eab14480b7

$ adb shell tc filter show dev wlan0 egress
(empty)

$ adb shell tc filter show dev v4-wlan0 ingress
(empty)

3. Disconnect from wifi

4. Check tc filter on wlan0 and v4-wlan0

$ adb shell tc filter show dev wlan0 ingress
(empty)

$ adb shell tc filter show dev v4-wlan0 egress
(empty)

$ adb shell tc filter show dev wlan0 egress
(empty)

$ adb shell tc filter show dev v4-wlan0 ingress
(empty)

Change-Id: Iaa67d5ae7c867d791d5f92a70a54bf549085053a