checkout sysctl: http://www.google.com/search?q=sysctl+android<http://www.google.com/search?q=sysctl+android&num=100>
For example, inside /etc/sysctl.conf, enter arp_filter entry: net.ipv4.conf.all.arp_filter=1 Or you can configure it via command line with: echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter And inside the kernel source code: net/ipv4/devinet.c: DEVINET_SYSCTL_RW_ENTRY(ARPFILTER, "arp_filter"), And the implementation function: ./ipv4/arp.c: static int arp_filter(__be32 sip, __be32 tip, struct net_device *dev) dont_send = arp_filter(sip, tip, dev); (with adaptation from: http://linux-ip.net/html/ether-arp.html <http://linux-ip.net/html/ether-arp.html> http://lwn.net/Articles/45386/#arp_filter) On Sat, Jun 18, 2011 at 4:51 AM, fan zhang <fzhang...@gmail.com> wrote: > Is it possible to use proc that not requires user app having root/net > admin. > > Could you compare proc, netlink and new virtual fs? > > > Thanks > > Fan > > > > > On Fri, Jun 17, 2011 at 12:27 PM, Pavan Savoy <pavan.sa...@gmail.com>wrote: > >> On Fri, Jun 17, 2011 at 9:13 AM, fan zhang <fzhang...@gmail.com> wrote: >> > We developed an Android service and a kernel module. Android service >> > and the Kernel module need to exchange data with each other. >> > >> > >> > Following are the requirements for the IPC between user space and >> > Kernel. >> > >> > 1. The communication should be secure. No authorized apps could not >> > talk to that Kernel module. >> > >> > 2. IPC should have minimal impact to the Kernel operation (scheduling >> > etc) >> > >> > 3. The communication should be duplex. >> > >> > Please give me some suggestions to setup that IPC. >> >> I've always liked netlink, However the genetlink library is kind of >> missing from Android. >> But it does suffice to all your requirements. >> >> >> > Thanks >> > >> > Fan >> > >> > -- >> > unsubscribe: android-kernel+unsubscr...@googlegroups.com >> > website: http://groups.google.com/group/android-kernel >> >> >> >> -- >> --Pavan Savoy >> >> -- >> unsubscribe: android-kernel+unsubscr...@googlegroups.com >> website: http://groups.google.com/group/android-kernel > > > -- > unsubscribe: android-kernel+unsubscr...@googlegroups.com > website: http://groups.google.com/group/android-kernel > -- Regards, Peter Teoh -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
