diff --git a/NetlinkManager.cpp b/NetlinkManager.cpp index 0ad182e..90e3c6c 100644 --- a/NetlinkManager.cpp +++ b/NetlinkManager.cpp @@ -64,10 +64,11 @@ int NetlinkManager::start() { return -1; } - // When running in a net/user namespace, SO_RCVBUFFORCE is not available. - // Try using SO_RCVBUF first. - if ((setsockopt(mSock, SOL_SOCKET, SO_RCVBUF, &sz, sizeof(sz)) < 0) && - (setsockopt(mSock, SOL_SOCKET, SO_RCVBUFFORCE, &sz, sizeof(sz)) < 0)) { + // When running in a net/user namespace, SO_RCVBUFFORCE will fail because + // it will check for the CAP_NET_ADMIN capability in the root namespace. + // Try using SO_RCVBUF if that fails. + if ((setsockopt(mSock, SOL_SOCKET, SO_RCVBUFFORCE, &sz, sizeof(sz)) < 0) && + (setsockopt(mSock, SOL_SOCKET, SO_RCVBUF, &sz, sizeof(sz)) < 0)) { SLOGE("Unable to set uevent socket SO_RCVBUF/SO_RCVBUFFORCE option: %s", strerror(errno)); goto out; }