Re: ifconfig(8) refactoring -- YACC grammar now online

From: Robert Watson (rwatson_at_freebsd.org)
Date: 11/30/03

  • Next message: Bruce M Simpson: "Re: ifconfig(8) refactoring -- YACC grammar now online" 
    Date: Sun, 30 Nov 2003 14:20:50 -0500 (EST)
To: Bruce M Simpson <bms@spc.org>

    On Sun, 30 Nov 2003, Bruce M Simpson wrote:

    > On Sun, Nov 30, 2003 at 01:12:42PM +0100, Andre Oppermann wrote:
    > > What I've thinking about a lot is to make the networking system and
    > > ifconfig sort of class-based like newbus and geom.
    >
    > Look at: http://people.freebsd.org/~bms/dump/nifconfig/nifconfig-design.txt
    >
    > There is a pending change to if_gre to enable it to be easily classified
    > in this way; ifconfig would simply query the interface for its if_type.
    > This is one way to do it without having to change struct ifnet. We could
    > add a new field, but avoiding changing the ABI is a Good Thing.

    if_type seems like it will work for high level classes of interfaces, but
    something more fine-grained will be required for interfaces that implement
    multiple classes or subclasses (i.e., 802 generally, and also 802.11b).
    Or likewise, tap interfaces might implement 802 generally, but also
    if_tap-specific primitives. Do we need to probe by-name for capabilities
    using interface ioctls, or return a "list" of implemented
    interfaces/classes to allow things to be a bit more multidimensional?

    Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
    robert@fledge.watson.org Senior Research Scientist, McAfee Research

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  • Next message: Bruce M Simpson: "Re: ifconfig(8) refactoring -- YACC grammar now online"

    Relevant Pages

    • Re: ifconfig(8) refactoring -- YACC grammar now online
      ... >> What I've thinking about a lot is to make the networking system and ... > This is one way to do it without having to change struct ifnet. ... if_type seems like it will work for high level classes of interfaces, ... something more fine-grained will be required for interfaces that implement ...
      (freebsd-hackers)
    • Re: ifconfig(8) refactoring -- YACC grammar now online
      ... > if_type seems like it will work for high level classes of interfaces, ... > something more fine-grained will be required for interfaces that implement ... not to add one to enumerate loaded interface classes. ... Then you do need a means for the ifconfig instance to ask gif0 if it speaks ...
      (freebsd-hackers)
    • Re: ifconfig(8) refactoring -- YACC grammar now online
      ... > if_type seems like it will work for high level classes of interfaces, ... > something more fine-grained will be required for interfaces that implement ... not to add one to enumerate loaded interface classes. ... Then you do need a means for the ifconfig instance to ask gif0 if it speaks ...
      (freebsd-arch)