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Include a RFC 1533 "Maximum DHCP Message Size" option in our request.

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ISC DHCP will limit the reply length to 64 bytes for bootp replies
unless we explicitly tell it we can do more.  We tell it that we can do
1200 bytes.
This commit is contained in:
Poul-Henning Kamp 2000-05-07 14:29:19 +00:00
parent d38aa24487
commit 831e32f863
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=60141
2 changed files with 34 additions and 10 deletions
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22
sys/nfs/bootp_subr.c
View File

@ -834,11 +834,23 @@ bootpc_init(void)
call.xid = txdr_unsigned(xid);
bcopy(LLADDR(sdl),&call.chaddr,sdl->sdl_alen);
call.vend[0]=99;
call.vend[1]=130;
call.vend[2]=83;
call.vend[3]=99;
call.vend[4]=255;
j = 0;
call.vend[j++]=99;
call.vend[j++]=130;
call.vend[j++]=83;
call.vend[j++]=99;
/*
* We send an RFC 1533 "Maximum DHCP Message Size" option, saying we
* can do 1200 bytes. If we don't ISC DHCPD will limit the answer to
* 64 bytes and root/swap and similar will be dropped.
*/
call.vend[j++]=57;
call.vend[j++]=2;
call.vend[j++]=(1200) % 256;
call.vend[j++]=(1200) / 256;
call.vend[j++]=255;
call.secs = 0;
call.flags = htons(0x8000); /* We need an broadcast answer */

22
sys/nfsclient/bootp_subr.c
View File

@ -834,11 +834,23 @@ bootpc_init(void)
call.xid = txdr_unsigned(xid);
bcopy(LLADDR(sdl),&call.chaddr,sdl->sdl_alen);
call.vend[0]=99;
call.vend[1]=130;
call.vend[2]=83;
call.vend[3]=99;
call.vend[4]=255;
j = 0;
call.vend[j++]=99;
call.vend[j++]=130;
call.vend[j++]=83;
call.vend[j++]=99;
/*
* We send an RFC 1533 "Maximum DHCP Message Size" option, saying we
* can do 1200 bytes. If we don't ISC DHCPD will limit the answer to
* 64 bytes and root/swap and similar will be dropped.
*/
call.vend[j++]=57;
call.vend[j++]=2;
call.vend[j++]=(1200) % 256;
call.vend[j++]=(1200) / 256;
call.vend[j++]=255;
call.secs = 0;
call.flags = htons(0x8000); /* We need an broadcast answer */