some key low level functions for networking: a. netif_rx()--> just after the interrupt level, and before the TCP/IP interface are called, for reciving packets. b. dev_queue_xmit()--> the equivalent of above but for transmission. c. ip_rcv(), tcp_v4_do_rcv(), tcp_v4_rcv() etc. d. tcp_sendmsg(), tcp_recvmsg() etc.
On Tue, Dec 16, 2008 at 10:32 AM, Li, Chanjuan <[email protected]> wrote: > > > ---------- Forwarded message ---------- > From: Li, Chanjuan <[email protected]> > Date: Tue, Dec 16, 2008 at 10:30 AM > Subject: how to > To: [email protected] > > > hi,all: > I am a newbie on linux kernel. now I encountered a problem on socket in > kernel space.I create a SOCK_DGRAM socket in kernel space . What I want to > do can > be described as follows: > while(1){ > if( packet received) > call packet handler > } > > my problem is how to know packet received at kernel space. In user space > there is select() to use, but in kernel space, there is no such function. > I have read sk_buff and struct sock definition to find some hint, but still > have no idea. I think it is a good place to ask for help. thanks in advance. > > > lily > > > -- Regards, Peter Teoh Ernest Hemingway - "Never mistake motion for action." -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
