commit aef1301629e3668f4c0589b49ea3a29fbbe29814
author Maciej Żenczykowski <maze@google.com> Tue Feb 18 17:13:09 2020 -0800
committer Maciej Żenczykowski <maze@google.com> Wed Feb 19 05:21:16 2020 +0000
tree 3fab0a1b9a88394c0f5bd87547c51bac867be141
parent c49e8f4e991641087d14aa966b5f058b7f93fcc7

TetherController - print less errors on bpf unsupporting devices

Test: build, atest
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I0b0bfeadb4a8596ea575c103937af83d5ff26027

server/TetherController.cpp

diff --git a/server/TetherController.cpp b/server/TetherController.cpp
index 9dd4f2e..a1e2ea4 100644
--- a/server/TetherController.cpp
+++ b/server/TetherController.cpp
@@ -992,6 +992,8 @@
 }
 
 void TetherController::maybeStartBpf(const char* extIface) {
+    if (!bpf::isBpfSupported()) return;
+
     // TODO: perhaps ignore IPv4-only interface because IPv4 traffic downstream is not supported.
     int ifIndex = if_nametoindex(extIface);
     if (!ifIndex) {
@@ -1022,6 +1024,8 @@
 }
 
 void TetherController::maybeStopBpf(const char* extIface) {
+    if (!bpf::isBpfSupported()) return;
+
     // TODO: perhaps ignore IPv4-only interface because IPv4 traffic downstream is not supported.
     int ifIndex = if_nametoindex(extIface);
     if (!ifIndex) {