Introduce the SIOC[SG]IFGENERIC hooks that can be used to pass an
arbritrary ioctl subcommand into an interface driver. Surprisingly enough, there was no provision for this already present (except of the option of abusing SIOC[SG]IFMEDIA for this). The idea is that an interface driver can establish ioctl subcommands of its own that can't be meaningfully interpreted by the upper layer interface ioctl function. Something like this is required to implement a clean solution of passing down things like CHAP secrets or PPP options to the /sys/net/if_sppp* files. (Yes, my CHAP is now finally working with it, but i gotta update my kernel to the new callout interface before being able to commit _that_.) Reviewed by: peter [long ago, actually]
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* @(#)sockio.h 8.1 (Berkeley) 3/28/94
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* $Id: sockio.h,v 1.9 1997/02/22 09:45:57 peter Exp $
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* $Id: sockio.h,v 1.10 1997/05/03 21:05:03 peter Exp $
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*/
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#ifndef _SYS_SOCKIO_H_
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@ -82,5 +82,7 @@
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#define SIOCSIFPHYS _IOW('i', 54, struct ifreq) /* set IF wire */
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#define SIOCSIFMEDIA _IOWR('i', 55, struct ifreq) /* set net media */
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#define SIOCGIFMEDIA _IOWR('i', 56, struct ifmediareq) /* get net media */
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#define SIOCSIFGENERIC _IOW('i', 57, struct ifreq) /* generic IF set op */
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#define SIOCGIFGENERIC _IOWR('i', 58, struct ifreq) /* generic IF get op */
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#endif /* !_SYS_SOCKIO_H_ */
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