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- From: hpeyerl@novatel.cuc.ab.ca (Herb Peyerl)
- Subject: patch for ifconfig to allow easier config of AUI/BNC.
- Message-ID: <1992Sep6.175647.9631@novatel.cuc.ab.ca>
- Organization: none
- Date: Sun, 6 Sep 1992 17:56:47 GMT
- Lines: 97
-
- I've had some mail and seen a number of posts here asking about
- the configuration of the AUI/BNC connectors on the 3Com 3c503
- card. When I released the initial version of the ec driver
- back in 0.0 days, there was a kludge for configuring this option
- requiring you to go into your ioconf.c and edit the isa_device
- structure setting bit 8 of the unit number to 1 indicating AUI.
- This was hideous but I could think of no other way to do it.
-
- When 0.1 was released; Bill Jolitz had modified the ec driver
- in some ways (to his credit). One of these ways was to remove
- my hideous kludge and add a check for IFF_LLC0 being set in the
- "ifnet" struct. If set, the driver uses AUI, else BNC.
-
- I've been trying to decide how best to allow this to be changed
- from an admin level. I figured I could write a utility to just
- do the appropriate ioctl() but decided we didn't really need
- YAU (yet another utility). Other's have mentioned that creating
- a /dev/ec0 entry with the appropriate major/minor numbers would
- suffice but, not understanding how that could work, I didn't
- pursue it. The final solution (which I finally decided upon) was
- to patch ifconfig. It was a simple patch and works extremely
- well (in my basement using a 3c503 with a DESTA transceiver
- plugged into a transceiver cable which is plugged into the AUI
- port of the 3c503.)
-
- Here's basically what you need to do:
-
- Copy this message to somewhere (/tmp)
-
- # cd /usr/src/sbin/ifconfig
- # patch < /tmp/message
- # make
- # cd obj
- # mv /sbin/ifconfig /sbin/ifconfig.dist
- # mv ifconfig /sbin/ifconfig
- # mv /usr/share/man/cat8/ifconfig.0 /usr/share/man/cat8/ifconfig.0.dist
- # mv ifconfig.0 /usr/share/man/cat8/ifconfig.0
- # ifconfig ec0 down
- # ifconfig ec0 aui
- # ifconfig ec0 up
-
- Or in your /etc/netstart change:
-
- ifconfig ec0 inet $hostname
-
- to:
-
- ifconfig ec0 inet $hostname aui
-
- Some will wonder about the appropriateness of patching ifconfig just
- to make it easier to configure one card. I wondered this same thing.
- I figured if Bill can patch the driver to use one of the interface
- flags for this purpose, then he must have intended for some way to
- do this from user-level. It doesn't appear that any other cards use
- IFF_LLC0 for any other purpose so "ifconfig we0 aui" won't have any
- affect on anything.
-
- Hope this helps everyone... Does anyone have any comments as to the
- appropriateness of this fix? (I'll wait for responses before I submit
- a BUGNFIX.FORM to Lynne. Unless Lynne sees this, feels it's appropriate
- and submits it herself.)
-
- ###### Cut Here #######
-
- *** ifconfig.c Fri Feb 7 16:27:09 1992
- --- ifconfig.c Sun Sep 6 11:23:50 1992
- ***************
- *** 107,112 ****
- --- 107,114 ----
- { "-arp", IFF_NOARP, setifflags },
- { "debug", IFF_DEBUG, setifflags },
- { "-debug", -IFF_DEBUG, setifflags },
- + { "aui", IFF_LLC0, setifflags },
- + { "bnc", -IFF_LLC0, setifflags },
- { "alias", IFF_UP, notealias },
- { "-alias", -IFF_UP, notealias },
- { "delete", -IFF_UP, notealias },
- *** ifconfig.8 Tue Apr 16 17:28:08 1991
- --- ifconfig.8 Sun Sep 6 11:43:49 1992
- ***************
- *** 130,135 ****
- --- 130,139 ----
- addresses and 10Mb/s Ethernet addresses.
- .It Fl arp
- Disable the use of the Address Resolution Protocol.
- + .It Cm aui
- + Enable the AUI port on a 3c503 adaptor.
- + .It Cm bnc
- + Enable the BNC port on a 3c503 adaptor. (default)
- .It Cm broadcast
- (Inet only)
- Specify the address to use to represent broadcasts to the
- --
- "I was early to finish | hpeyerl@novatel.cuc.ab.ca <Reply-To> | I brew |
- I was late to start, I | peyerlh@cuug.ab.ca | there- |
- might be an adult, but | #define JANITOR "Network Administrator"| fore I |
- I'm a minor at heart." | JANITOR, NovAtel Communications Ltd.| AM. |
-