How to get the IP address in kernel module

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 kernel space.

Thank you.
Chinmaya
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• Prev by Date: Re: procfs and privacy and a few other questions
• Next by Date: Re: Gettin own IP address thorugh ioctl in kernel space.
• Previous by thread: Gettin own IP address thorugh ioctl in kernel space.
• Next by thread: Per-user swap devices.
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]