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
3 files changed