Re: interface name - module name assoc SOLVED

["roylo" <roylo@example.com>]

Great!  ^_^

why don't you submit this to Alan Cox, that way everyone can benefit from it
?




----- Original Message -----
From: "Scott M. Stone" <sstone@example.com>
To: "Tokyo Linux Users' Group" <tlug@example.com>
Sent: Tuesday, September 04, 2001 4:04 PM
Subject: interface name - module name assoc SOLVED


>
> Ok, well, I did have to write a kernel module, but this should work on all
> machines and reliably tell you "what driver module is the owner of the
> interface", assuming you're using dynamic modules for your network
> drivers.  Amazingly enough, I did NOT manage to crash my system while
> testing this thing, I guess I got lucky this time :)
>
> compile with:
>
> gcc -Wall -DMODULE -D__KERNEL__ -DLINUX -o ndmassoc.o -c ndmassoc.c
>
> then,
>
> insmod ./ndmassoc.o
>
> then
>
> cat /proc/ndmassoc
>
> the number is the "interface index number" as seen by the kernel, if
> you're wondering.
>
> rmmod ndmassoc
>
> will get rid of it.
>
>
> --cut here--
>
> /* ndmassoc.c
>    this driver provides /proc/ndmassoc, which lets you associate network
>    devices with
>    the module that owns it.
>
>    this code released under the terms of the GNU GPL
>    (C) 2001 by Scott Stone <sstone@example.com>
>
>    This module comes with NO WARRANTY - if it breaks your kernel, reboot
and
>    don't load it
>    again, or try it again, and be angry.  It's really up to you, but I
take
>    no responsibility either way.
> */
>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #if CONFIG_MODVERSIONS==1
> #define MODVERSIONS
> #include <linux/modversions.h>
> #endif
> #include <linux/proc_fs.h>
> #include <linux/netdevice.h>
>
> #define MODNAME "ndmassoc"
> #define VERSION "1.0.0"
> #define COPYRIGHT "(C) 2001 by Scott Stone <sstone@example.com>"
> #define MAX_INTERFACES 50
> #define BUFFER_SIZE ((MAX_INTERFACES * 80) + 1)
>
> int procfile_read(char *buffer, char **buffer_location, off_t offset, int
buffer_length, int *eof, void *data) {
> int len=0;
> static char my_buffer[BUFFER_SIZE];
> struct net_device *nd=NULL;
> static int zz;
>
> memset(my_buffer,0,BUFFER_SIZE);
> strcpy(my_buffer,":Interfaces:\n");
> if (offset > 0) return 0;
> for (zz=0;zz < MAX_INTERFACES;zz++) {
> nd=dev_get_by_index(zz);
> if (nd && (nd->owner) && (nd->owner->name)) {
> sprintf(my_buffer,"%s%d:%s:%s\n",
> my_buffer,
> zz,
> nd->name,
> nd->owner->name);
> }
> }
> len=strlen(my_buffer);
> *buffer_location=my_buffer;
> return len;
> }
>
> int init_module(void) {
> struct proc_dir_entry *p=NULL;
> printk("%s v%s - %s\n", MODNAME, VERSION, COPYRIGHT);
> p=create_proc_entry(MODNAME,(S_IFREG | S_IRUGO),&proc_root);
> if (!p) {
> printk("%s: error registering /proc/%s !!\n",MODNAME,MODNAME);
> return -1;
> }
> p->read_proc=procfile_read;
> p->data=NULL;
> return 0;
> }
>
> void cleanup_module(void) {
> remove_proc_entry(MODNAME,&proc_root);
> printk("%s unloaded successfully.\n",MODNAME);
> }
>
> -----------------------------------------------------------------------
> Next Technical Meeting:  Sat, Sep 15 13:30-  Leading Edge Co., Place
Canada
> Next Nomikai Meeting:    Fri, Oct 19 19:30-  Tengu Tokyo Eki-Mae
> -----------------------------------------------------------------------
> more info: http://www.tlug.gr.jp           Sponsor: Global Online Japan