136 lines
4.4 KiB
Diff
136 lines
4.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Michael Chang <mchang@suse.com>
|
|
Date: Thu, 14 Jul 2016 18:45:14 +0800
|
|
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 | 68 +++++++++++++++++++++++++++++++++++++++++++++++++--
|
|
include/grub/net.h | 1 +
|
|
2 files changed, 67 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c
|
|
index 242cd1f4c..8b6fc9f24 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>
|
|
@@ -254,6 +255,11 @@ parse_dhcp_vendor (const char *name, const void *vend, int limit, int *mask)
|
|
taglength);
|
|
break;
|
|
|
|
+ case GRUB_NET_BOOTP_VENDOR_CLASS_IDENTIFIER:
|
|
+ grub_env_set_net_property (name, "vendor_class_identifier", (const char *) ptr,
|
|
+ taglength);
|
|
+ break;
|
|
+
|
|
case GRUB_NET_BOOTP_EXTENSIONS_PATH:
|
|
grub_env_set_net_property (name, "extensionspath", (const char *) ptr,
|
|
taglength);
|
|
@@ -357,6 +363,66 @@ grub_net_configure_by_dhcp_ack (const char *name,
|
|
}
|
|
#endif
|
|
|
|
+ if (size > OFFSET_OF (vendor, bp))
|
|
+ {
|
|
+ char *cidvar;
|
|
+ const char *cid;
|
|
+
|
|
+ parse_dhcp_vendor (name, &bp->vendor, size - OFFSET_OF (vendor, bp), &mask);
|
|
+ cidvar = grub_xasprintf ("net_%s_%s", name, "vendor_class_identifier");
|
|
+ cid = grub_env_get (cidvar);
|
|
+ grub_free (cidvar);
|
|
+
|
|
+ if (cid && grub_strcmp (cid, "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;
|
|
+ }
|
|
+ }
|
|
+
|
|
if (size > OFFSET_OF (boot_file, bp))
|
|
grub_env_set_net_property (name, "boot_file", bp->boot_file,
|
|
sizeof (bp->boot_file));
|
|
@@ -421,8 +487,6 @@ grub_net_configure_by_dhcp_ack (const char *name,
|
|
**path = 0;
|
|
}
|
|
}
|
|
- if (size > OFFSET_OF (vendor, bp))
|
|
- parse_dhcp_vendor (name, &bp->vendor, size - OFFSET_OF (vendor, bp), &mask);
|
|
grub_net_add_ipv4_local (inter, mask);
|
|
|
|
inter->dhcp_ack = grub_malloc (size);
|
|
diff --git a/include/grub/net.h b/include/grub/net.h
|
|
index 5f78b22e1..9cf6da689 100644
|
|
--- a/include/grub/net.h
|
|
+++ b/include/grub/net.h
|
|
@@ -522,6 +522,7 @@ enum
|
|
GRUB_NET_BOOTP_DOMAIN = 0x0f,
|
|
GRUB_NET_BOOTP_ROOT_PATH = 0x11,
|
|
GRUB_NET_BOOTP_EXTENSIONS_PATH = 0x12,
|
|
+ GRUB_NET_BOOTP_VENDOR_CLASS_IDENTIFIER = 0x3C,
|
|
GRUB_NET_BOOTP_CLIENT_ID = 0x3d,
|
|
GRUB_NET_BOOTP_CLIENT_UUID = 0x61,
|
|
GRUB_NET_BOOTP_END = 0xff
|