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From: slt@lpbcsun.lpbc.jussieu.fr (Stephane Tsacas)
Newsgroups: comp.unix.questions,comp.unix.bsd,comp.unix.internals,comp.sys.sun.apps,alt.unix.wizards,can.sun-stroke,alt.sys.sun
Subject: Re: Interface MAC address SunOS 4.1.3
Date: 15 Mar 1996 21:06:50 +0000
Organization: LPBC Jussieu, univ. Paris 6
Lines: 39
Sender: slt@lpbcsun.lpbc.jussieu.fr
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References: <4ia1rs$1j1@sol.sun.csd.unb.ca>
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In-reply-to: phowlett@opie.ASG.unb.ca's message of 14 Mar 1996 21:08:12 GMT
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In article <4ia1rs$1j1@sol.sun.csd.unb.ca> phowlett@opie.ASG.unb.ca (Peter Howlett) writes:
[...]
This is great for Net/FreeBSD, the sa_data contains the MAC,
but the SunOS box only returns AF_INET ifreq's in the buffer.
Hmmmm. so how do I get the ethernet MAC address of an interface
out of the !@#$% SunOS kernel? Any pointers greatly appreciated...
I've got it... :
adb -k /vmunix /dev/mem
physmem 3fb1
le_softc/X
_le_softc:
_le_softc: ff005000
0xff005000+0t112/X
0xff005070: 8002071
0xff005074: d5010000
First component of struct le_softc is a struct arpcom which starts by:
struct arpcom {
struct ifnet ac_if; /* network-visible interface */
struct ether_addr ac_enaddr; /* ethernet hardware address */
struct in_addr ac_ipaddr; /* copy of ip address- XXX */
...
and sizeof(struct ifnet) = 112
Don't ask me if the machine has more than one interface...
,
Stephane
ps; references: netinet/if_ether.h, net/if.h, sunif/le_var.h
--
Stephane Tsacas slt@curie.fr
Institut Curie slt@lpbcjussieu.fr
26 rue d'Ulm Phone: (33-1) 4234 6772 (W)
75231 cedex 5 Paris 40510636(fax) 4828 4994 (H)
France <<PUSHJ P, POPJ P, recursively>>