Re: [BUG?] vtund broken by tun driver changes in 2.4.6

From: Joerg Reuter (jreuter@suse.de)
Date: Fri Jul 13 2001 - 08:33:29 EST


>Recompile your VTUND daemon with the new kernel headers (and also updated to
>2.5 vtund, it has some small patches) and you will be fine.

Probably not:

        #define TUNSETNOCSUM _IOW('T', 200, int)
        #define TUNSETDEBUG _IOW('T', 201, int)
        #define TUNSETIFF _IOW('T', 202, int)
        #define TUNSETPERSIST _IOW('T', 203, int)
        #define TUNSETOWNER _IOW('T', 204, int)

Which is (apart from some extensions) the same as it ever was. However
adding a

        printk(KERN_INFO "tun_chr_ioctl() called with cmd=%4.4X
                (TUNSETIFF=%4.4X, tun is%s set)\n",
                cmd, TUNSETIFF, tun? "":" not");

in tun_chr_ioctl() reveals:

        tun_chr_ioctl() called with cmd=54CA (TUNSETIFF=400454CA, tun is not set)

Now, where does the 0x400454CA come from? What happened to the _IOW()
macros? (Tested with 2.4.6 vanilla kernel sources and gcc-2.95.3)

And BTW, you shouldn't include kernel headers from user space programs,
should you.

Regards,

-- 
Joerg Reuter                                    http://yaina.de/jreuter
And I make my way to where the warm scent of soil fills the evening air. 
Everything is waiting quietly out there....                 (Anne Clark)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sun Jul 15 2001 - 21:00:19 EST