Author: ian
Date: Mon Mar 21 15:06:50 2016
New Revision: 297151
URL: https://svnweb.freebsd.org/changeset/base/297151
Log:
If the dhcp server provided an interface-mtu option, transcribe the value
to the boot.netif.mtu env var, which will be picked up by pre-existing code
in nfs_mountroot() and used to configure the interface accordingly.
This should bring the same functionality when the bootp/dhcp work is done
by loader(8) as r297150 does for the in-kernel BOOTP case.
Modified:
head/sys/boot/common/dev_net.c
head/sys/boot/i386/libi386/pxe.c
Modified: head/sys/boot/common/dev_net.c
==============================================================================
--- head/sys/boot/common/dev_net.c Mon Mar 21 14:58:12 2016
(r297150)
+++ head/sys/boot/common/dev_net.c Mon Mar 21 15:06:50 2016
(r297151)
@@ -169,6 +169,12 @@ net_open(struct open_file *f, ...)
setenv("boot.netif.gateway", inet_ntoa(gateip), 1);
setenv("boot.nfsroot.server", inet_ntoa(rootip), 1);
setenv("boot.nfsroot.path", rootpath, 1);
+ if (intf_mtu != 0) {
+ char mtu[16];
+ sprintf(mtu, "%u", intf_mtu);
+ setenv("boot.netif.mtu", mtu, 1);
+ }
+
}
netdev_opens++;
f->f_devdata = &netdev_sock;
Modified: head/sys/boot/i386/libi386/pxe.c
==============================================================================
--- head/sys/boot/i386/libi386/pxe.c Mon Mar 21 14:58:12 2016
(r297150)
+++ head/sys/boot/i386/libi386/pxe.c Mon Mar 21 15:06:50 2016
(r297151)
@@ -310,6 +310,11 @@ pxe_open(struct open_file *f, ...)
sprintf(temp, "%6D", bootplayer.CAddr, ":");
setenv("boot.netif.hwaddr", temp, 1);
}
+ if (intf_mtu != 0) {
+ char mtu[16];
+ sprintf(mtu, "%u", intf_mtu);
+ setenv("boot.netif.mtu", mtu, 1);
+ }
#ifdef LOADER_NFS_SUPPORT
printf("pxe_open: server addr: %s\n", inet_ntoa(rootip));
printf("pxe_open: server path: %s\n", rootpath);
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