Hi ,
I am compiling 2.4.22 and on reboot I get the folowing
error message:
Loading sd.o
Kernel requires old insmod, but couldnt run
/bin/insmod.old
(I did a make dep, make bzImage, make modules, make
modules_install and make install after configuration)
This led to a series of similar error messages and
finally a kernel panic.
help needed!
Sai
--- Bhaskar-ROCSYS <vbhaskar@xxxxxxxxxx> wrote:
> Hi all,
>
> Is there any way to create a dynamic interface from
> kernel space.
>
> Is it possible to change the parameters of an
> interface from kernel
> space?
>
>
> All these can be done by using ifconfig. But I want
> to do it from
> kernel space.
> I want to change the IP address from kernel space
> and change the IP
> address. I have written a small code to do this but
> i am not able to
> see the effect.
>
> The code I had written is:
>
>
>
> #define __KERNEL__
> #define MODULE
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <asm/uaccess.h>
> #include <asm/system.h>
> #include <asm/bitops.h>
> #include <linux/types.h>
> #include <linux/kernel.h>
> #include <linux/sched.h>
> #include <linux/string.h>
> #include <linux/mm.h>
> #include <linux/socket.h>
> #include <linux/sockios.h>
> #include <linux/in.h>
> #include <linux/errno.h>
> #include <linux/interrupt.h>
> #include <linux/if_ether.h>
> #include <linux/inet.h>
> #include <linux/netdevice.h>
> #include <linux/etherdevice.h>
> #include <linux/skbuff.h>
> #include <linux/rtnetlink.h>
> #include <linux/init.h>
> #include <linux/notifier.h>
> #include <linux/inetdevice.h>
> #include <linux/igmp.h>
> #ifdef CONFIG_SYSCTL
> #include <linux/sysctl.h>
> #endif
> #include <linux/kmod.h>
>
> #include <net/ip.h>
> #include <net/route.h>
> #include <net/ip_fib.h>
>
>
> int init_module()
> {
> struct in_device *in_dev;
> struct in_ifaddr **ifap = NULL;
> struct in_ifaddr *ifa = NULL;
> struct net_device *dev;
>
> if((dev = __dev_get_by_name("eth0")) == NULL)
> {
> printk("<1>Cannot get info for eth0\n");
> return -1;
> }
>
> if((in_dev = __in_dev_get(dev))!= NULL)
> {
> for (ifap=&in_dev->ifa_list; (ifa=*ifap) != NULL;
> ifap=&ifa->ifa_next)
> {
> if ((strcmp("eth0", ifa->ifa_label) == 0))
> break; /* found */
> }
> }
> if(ifa)
> {
> ifa->ifa_local = htonl(0xac100f63);
>
> ifa->ifa_prefixlen = 24;
> ifa->ifa_mask =
> inet_make_mask(ifa->ifa_prefixlen);
> if ((dev->flags&IFF_BROADCAST) &&
> ifa->ifa_prefixlen <
> 31)
> ifa->ifa_broadcast =
> ifa->ifa_address|~ifa->ifa_mask;
> }
> else printk("<1>Could not find the device\n");
>
> return 0;
> }
>
> void cleanup_module()
> {
> printk("<1>MOd removed\n");
> }
>
>
> The changes are made but when I am trying to send
> packet its failing.
>
> Is there any other way to change the interface
> parameters from kernel
> space ?
>
> TIA
>
> Regards
> bhaskar
>
>
>
>
> --
> Kernelnewbies: Help each other learn about the Linux
> kernel.
> Archive:
> http://mail.nl.linux.org/kernelnewbies/
> FAQ: http://kernelnewbies.org/faq/
>
>
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Archive: http://mail.nl.linux.org/kernelnewbies/
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