Hi Clay,
On 05/14/10 01:43 AM, [email protected] wrote:
Hi all,
Here's what I'm envisioning for the AI multihomed implementation
plan. Please let me know your oppinion of it or if it looks like
anything is missing.
Thank you,
Clay
[...]
* Wanboot
Wanboot in its wanboot.conf provides a root_server value which has
an IP address in it. This project will modify ON's
usr/src/common/net/wanboot/bootconf.c valid_root_server()
function to populate a variable substitution similar to GRUB's
handling of variables (e.g. kernel$ enabling $ISADIR) for
providing a subnet specific IP to clients; the incoming subnet's
interface is returned in place of the token (envisioned to be
'$serverIP').
Do we need to modify usr/src/common/net/wanboot/bootconf.c ?
For wanboot itself, it seems it contains mechanism for locating
the server:
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/psm/stand/boot/sparc/common/wbcli.c#determine_bootserver_url
Then once microroot is booted, in net-fs-root we could derive server
address by inspecting
'dhcpinfo bootfile' (thus eliminating dependency on root_server
wanboot.conf property):
# dhcpinfo bootfile
http://192.168.100.10:5555/cgi-bin/wanboot-cgi
The whole DHCP response OBP receives seems to be exported by
OBP as bootp-response property:
# prtconf -vp | grep bootp-response
bootp-response:
02010600.9508409d.00000000.00000000.c0a864bf.00000000.00000000.0003bafb.20c10000.00000000.00000000.00000000.00000000.
00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.
68747470.3a2f2f31.39322e31.36382e31.30302e31.303a3535.35352f63.67692d62.696e2f77.616e626f.6f742d63.67690000.00000000.00000000.
00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.00000000.
00000000.00000000.00000000.00000000.63825363.35010536.04c0a864.0a0204ff.ff8f8004.04c0a864.0a330400.0151800f.0d637a65.63682e73.
756e2e63.6f6d0608.819d108c.819d804f.0104ffff.ff000304.c0a86401.1c04c0a8.64ffff
Jan
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