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slirp: Implement RFC2132 TFTP server name

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This new usernet option can be used to add data for option 66 (tftp
server name) in the BOOTP reply, which is useful in PXE based automatic
OS install such as OpenBSD.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This commit is contained in:
Fam Zheng 2018-09-14 15:26:16 +08:00 • committed by Samuel Thibault
parent 6e157a0339
commit 0fca92b907
8 changed files with 38 additions and 4 deletions
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7
qemu-options.hx
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@ -1823,7 +1823,7 @@ DEF("netdev", HAS_ARG, QEMU_OPTION_netdev,
" [,ipv6[=on|off]][,ipv6-net=addr[/int]][,ipv6-host=addr]\n"
" [,restrict=on|off][,hostname=host][,dhcpstart=addr]\n"
" [,dns=addr][,ipv6-dns=addr][,dnssearch=domain][,domainname=domain]\n"
" [,tftp=dir][,bootfile=f][,hostfwd=rule][,guestfwd=rule]"
" [,tftp=dir][,tftp-server-name=name][,bootfile=f][,hostfwd=rule][,guestfwd=rule]"
#ifndef _WIN32
"[,smb=dir[,smbserver=addr]]\n"
#endif
@ -2060,6 +2060,11 @@ server. The files in @var{dir} will be exposed as the root of a TFTP server.
The TFTP client on the guest must be configured in binary mode (use the command
@code{bin} of the Unix TFTP client).
@item tftp-server-name=@var{name}
In BOOTP reply, broadcast @var{name} as the "TFTP server name" (RFC2132 option
66). This can be used to advise the guest to load boot files or configurations
from a different server than the host address.
@item bootfile=@var{file}
When using the user mode network stack, broadcast @var{file} as the BOOTP
filename. In conjunction with @option{tftp}, this can be used to network boot