Thanks you very much :-) I will work on it today, It will help me a lot ! Thierry On Wed, Apr 22, 2009 at 4:09 AM, Prashant Bhole <prashantsmailcenter@xxxxxxxxx> wrote: > Hi, > My mail didn't go to the mailing list because of its content. I am posting > it again with code attached. It will help some other people having same > problem. > > On Wed, Apr 22, 2009 at 7:05 AM, Peter Teoh <htmldeveloper@xxxxxxxxx> wrote: >> >> nice work!!!! thank you for the sharing Prashant. >> >> On Wed, Apr 22, 2009 at 1:34 AM, Prashant Bhole >> <prashantsmailcenter@xxxxxxxxx> wrote: >> > Hi Thierry, >> > I got the solution :) The only thing you are missing is to subscribe the >> > group using setsockopt() just after bind() in the user space program. >> > This >> > subscription is necessary only when the group id is oher than 1. My code >> > sends a message to kernel and then kernel replies to it using >> > netlink_broadcast. I am using 2.6.26 kernel. And code is as follows: >> > >> > /*------------------------------ kernel module >> > ----------------------------------*/ >> > #include <linux/init.h> >> > #include <linux/module.h> >> > #include <linux/kernel.h> >> >> > >> > >> > Thanks, >> > >> > On Fri, Apr 17, 2009 at 2:39 PM, Thierry <chocapiiic.tiery@xxxxxxxxx> >> > wrote: >> >> >> >> Hi, >> >> >> >> it is always the same :'( >> >> I have looked into kernel sources, and there is also somethings >> >> strange: in source code of netlink_kernel_create: >> >> if (group <32) >> >> group = 32; >> >> This lines were not present in kernel 2.6.9. >> >> I am also wondering if there isn't somethings wrong with listenners: >> >> there are some tests on *has listenners*. >> >> >> >> Actually, I get theses errors: >> >> For kernel code: netlink broadcast return -3, No such process. >> >> User code: can't bind: errot -3. >> >> >> >> I have put one programs, who works when using unicast instead of >> >> broadcast, GROUP_IB set to 0, and I fix manually pid of the >> >> user-level program. >> >> When I changed unicast to broadcast, and I set GROUP_IB to an other >> >> value, I get the errors. >> >> >> >> >> >> Thierry >> >> >> >> >> >> >> > >> > >> > >> > -- >> > ~p~r~a~s~h~a~n~t~ >> > >> >> >> >> -- >> Regards, >> Peter Teoh > > > > -- > ~p~r~a~s~h~a~n~t~ > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
