Gettin own IP address thorugh ioctl in kernel space.

[Chinmaya Mishra <chinmaya4@gmail.com>]

Hi,

Can you provide an example how to invoke ioctl on
device in kernel module.

For example. I want to find out the IP address of
my eth0 and I want to make SIOCSIFADDR on it from 
kernel module.


At user space i am doing it like this.....

 unsigned long *ip;
 char *iface;
 int sockfd;
 struct ifreq ifr;
 strcpy(ifr.ifr_name, iface);	// interface name 'eth0'
 sockfd = socket(AF_INET,SOCK_DGRAM,0);
 ioctl(sockfd, SIOCGIFADDR, (char*)&ifr);
 memcpy(ip, &(ifr.ifr_addr.sa_data[2]),4); //Copy the ip addr
 close(sockfd);

How to port this in keernel space.

Thank you.
Chinmaya