Re: interface name - module name assoc SOLVED

["Scott M. Stone" <sstone@example.com>]

On Tue, 4 Sep 2001, roylo wrote:

> Great!  ^_^
> 
> why don't you submit this to Alan Cox, that way everyone can benefit from it
> ?

yes, I'm going to do that.  is it still "alan@example.com" ?

> 
> 
> 
> 
> ----- 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
> 
> -----------------------------------------------------------------------
> 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
> 
> 

--------------------------
Scott M. Stone <sstone@example.com>
Director of Information Technology, Director of Research and Development
ITIsOpen, Inc. - http://www.itisopen.com
Cisco Certified Network Associate, Sun Solaris Certified Systems Administrator