109 lines
3.9 KiB
Diff
109 lines
3.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Michael Chang <mchang@suse.com>
|
|
Date: Wed, 10 Jul 2019 23:58:28 +0200
|
|
Subject: [PATCH] bootp: Add processing DHCPACK packet from HTTP Boot
|
|
|
|
The vendor class identifier with the string "HTTPClient" is used to denote the
|
|
packet as responding to HTTP boot request. In DHCP4 config, the filename for
|
|
HTTP boot is the URL of the boot file while for PXE boot it is the path to the
|
|
boot file. As a consequence, the next-server becomes obseleted because the HTTP
|
|
URL already contains the server address for the boot file. For DHCP6 config,
|
|
there's no difference definition in existing config as dhcp6.bootfile-url can
|
|
be used to specify URL for both HTTP and PXE boot file.
|
|
|
|
This patch adds processing for "HTTPClient" vendor class identifier in DHCPACK
|
|
packet by treating it as HTTP format, not as the PXE format.
|
|
|
|
Signed-off-by: Michael Chang <mchang@suse.com>
|
|
Signed-off-by: Ken Lin <ken.lin@hpe.com>
|
|
---
|
|
grub-core/net/bootp.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
include/grub/net.h | 1 +
|
|
2 files changed, 56 insertions(+)
|
|
|
|
diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c
|
|
index fe93b80f1c..8fb8918ae7 100644
|
|
--- a/grub-core/net/bootp.c
|
|
+++ b/grub-core/net/bootp.c
|
|
@@ -20,6 +20,7 @@
|
|
#include <grub/env.h>
|
|
#include <grub/i18n.h>
|
|
#include <grub/command.h>
|
|
+#include <grub/net.h>
|
|
#include <grub/net/ip.h>
|
|
#include <grub/net/netbuff.h>
|
|
#include <grub/net/udp.h>
|
|
@@ -500,6 +501,60 @@ grub_net_configure_by_dhcp_ack (const char *name,
|
|
if (opt && opt_len)
|
|
grub_env_set_net_property (name, "rootpath", (const char *) opt, opt_len);
|
|
|
|
+ opt = find_dhcp_option (bp, size, GRUB_NET_BOOTP_VENDOR_CLASS_IDENTIFIER, &opt_len);
|
|
+ if (opt && opt_len)
|
|
+ {
|
|
+ grub_env_set_net_property (name, "vendor_class_identifier", (const char *) opt, opt_len);
|
|
+ if (opt && grub_strcmp (opt, "HTTPClient") == 0)
|
|
+ {
|
|
+ char *proto, *ip, *pa;
|
|
+
|
|
+ if (!dissect_url (bp->boot_file, &proto, &ip, &pa))
|
|
+ return inter;
|
|
+
|
|
+ grub_env_set_net_property (name, "boot_file", pa, grub_strlen (pa));
|
|
+ if (is_def)
|
|
+ {
|
|
+ grub_net_default_server = grub_strdup (ip);
|
|
+ grub_env_set ("net_default_interface", name);
|
|
+ grub_env_export ("net_default_interface");
|
|
+ }
|
|
+ if (device && !*device)
|
|
+ {
|
|
+ *device = grub_xasprintf ("%s,%s", proto, ip);
|
|
+ grub_print_error ();
|
|
+ }
|
|
+ if (path)
|
|
+ {
|
|
+ *path = grub_strdup (pa);
|
|
+ grub_print_error ();
|
|
+ if (*path)
|
|
+ {
|
|
+ char *slash;
|
|
+ slash = grub_strrchr (*path, '/');
|
|
+ if (slash)
|
|
+ *slash = 0;
|
|
+ else
|
|
+ **path = 0;
|
|
+ }
|
|
+ }
|
|
+ grub_net_add_ipv4_local (inter, mask);
|
|
+ inter->dhcp_ack = grub_malloc (size);
|
|
+ if (inter->dhcp_ack)
|
|
+ {
|
|
+ grub_memcpy (inter->dhcp_ack, bp, size);
|
|
+ inter->dhcp_acklen = size;
|
|
+ }
|
|
+ else
|
|
+ grub_errno = GRUB_ERR_NONE;
|
|
+
|
|
+ grub_free (proto);
|
|
+ grub_free (ip);
|
|
+ grub_free (pa);
|
|
+ return inter;
|
|
+ }
|
|
+ }
|
|
+
|
|
opt = find_dhcp_option (bp, size, GRUB_NET_BOOTP_EXTENSIONS_PATH, &opt_len);
|
|
if (opt && opt_len)
|
|
grub_env_set_net_property (name, "extensionspath", (const char *) opt, opt_len);
|
|
diff --git a/include/grub/net.h b/include/grub/net.h
|
|
index 543251f727..42af7de250 100644
|
|
--- a/include/grub/net.h
|
|
+++ b/include/grub/net.h
|
|
@@ -531,6 +531,7 @@ enum
|
|
GRUB_NET_DHCP_MESSAGE_TYPE = 53,
|
|
GRUB_NET_DHCP_SERVER_IDENTIFIER = 54,
|
|
GRUB_NET_DHCP_PARAMETER_REQUEST_LIST = 55,
|
|
+ GRUB_NET_BOOTP_VENDOR_CLASS_IDENTIFIER = 60,
|
|
GRUB_NET_BOOTP_CLIENT_ID = 61,
|
|
GRUB_NET_DHCP_TFTP_SERVER_NAME = 66,
|
|
GRUB_NET_DHCP_BOOTFILE_NAME = 67,
|