Hungming Chen 3c94994650 Fix attaching program failure on kernel 5.10 ...

Attach BPF program may be failed with the netlink error message
"Invalid argument". Per debug kernel trace, it is failed in
comparing the kind name in tc_new_tfilter.

Log:
05-05 19:44:42.329  1073  2332  2332 W tc_new_tfilter:
Specified filter kind does not match existing one

Test: enable usb tethering and check the follows

$ adb shell tc filter show dev <upstream, downstream> ingress
filter protocol ipv6 pref 1 bpf chain 0
filter protocol ipv6 pref 1 bpf chain 0 handle 0x1
prog_offload_schedcls_tether_upstream6_ether:[*fsobj]
direct-action not_in_hw id 3 tag 94ca9b12972fdea8
filter protocol ip pref 2 bpf chain 0
filter protocol ip pref 2 bpf chain 0 handle 0x1
prog_offload_schedcls_tether_upstream4_ether:[*fsobj]
direct-action not_in_hw id 9 tag 992aa9bfd0503457
filter protocol ipv6 pref 1 bpf chain 0
filter protocol ipv6 pref 1 bpf chain 0 handle 0x1
prog_offload_schedcls_tether_downstream6_rawip:[*fsobj]
direct-action not_in_hw id 4 tag 7fb60e556b8f3be7
filter protocol ip pref 2 bpf chain 0
filter protocol ip pref 2 bpf chain 0 handle 0x1
prog_offload_schedcls_tether_downstream4_rawip:[*fsobj]
direct-action not_in_hw id 6 tag e41426095404fb64

Change-Id: I471a2e34c626a3737cbd2754e4d1b3000bcf6ba6

2021-05-06 02:52:07 +00:00

..

android_net_util_TetheringUtils.cpp

Provide a easy way to access bpf maps from java

2021-01-11 17:43:27 +08:00

com_android_networkstack_tethering_BpfCoordinator.cpp

Dump counters in "dumpsys tethering bpf".

2021-02-10 04:43:03 +00:00

com_android_networkstack_tethering_BpfMap.cpp

Use header module bpf_syscall_wrappers

2021-01-13 14:31:28 +08:00

com_android_networkstack_tethering_BpfUtils.cpp

Fix attaching program failure on kernel 5.10

2021-05-06 02:52:07 +00:00

onload.cpp

[NFCT.TETHER.15] Attach BPF program in the mainline module

2021-03-11 17:49:42 +08:00