svn commit: r305125 - in head: lib/libstand sys/boot/common sys/boot/efi/libefi sys/boot/efi/loader sys/boot/i386/libi386 sys/boot/i386/loader sys/boot/pc98/loader

[Baptiste Daroussin]

On Wed, Aug 31, 2016 at 01:16:40PM +0000, Baptiste Daroussin wrote:
> Author: bapt
> Date: Wed Aug 31 13:16:40 2016
> New Revision: 305125
> URL: https://svnweb.freebsd.org/changeset/base/305125
> 
> Log:
>   Netboot: allow both tftpfs and nfs in both pxeboot and loader.efi
>   
>   Add a new 'netproto' variable which can be set for now to
>   NET_TFTP or NET_NFS (default to NET_NONE)
>   
>   From the dhcp options if one sets the root-path option to:
>   "ip:path", the loader will consider it is booting over NFS
>   (meaning same behaviour as the default current behaviour)
>   
>   if the dhcp option "tftp server address" is set (option 150)
>   the loader will consider it is booting over tftpfs, it will then
>   consider the root-path options with 2 possible case
>   1. "path" then the IP of the tftp server will be the one passed by
>   the option 150, and the files will be retrieved under "path" on the tftp
>   server
>   2. "ip:path" then the IP of the tftp server will be the one passed in
>   the option "overwritting the IP from the option 150.
>   
>   We could not "abuse" the rootpath option in the form or tftp://ip:path because
>   this is already used for other purpose by iPXE preventing any chainload from
>   iPXE to the FreeBSD loader.
>   
>   Given at each open(), the loader loops over all available filesystems and keep
>   the "best" error, we needed to prevent tftpfs to fallback on nfs and vice versa.
>   the tftpfs and nfs implementation in libstand now return EINVAL early if
>   'netproto' for that purpose.
>   
>   Reviewed by:	tsoome
>   Relnotes:	yes
>   Sponsored by:	Gandi.net
>   Differential Revision:	https://reviews.freebsd.org/D7628

I forgot to mention a guard was added to libstand's net.h, because it is
included multiple times for some loaders

Best regards,
Bapt
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