diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-05-18 13:18:31 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-05-18 13:42:15 +0300 |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/roms/ipxe/src/arch/i386/image/pxe_image.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/image/pxe_image.c')
-rw-r--r-- | qemu/roms/ipxe/src/arch/i386/image/pxe_image.c | 52 |
1 files changed, 47 insertions, 5 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/image/pxe_image.c b/qemu/roms/ipxe/src/arch/i386/image/pxe_image.c index dc28f6082..5b0f6eb89 100644 --- a/qemu/roms/ipxe/src/arch/i386/image/pxe_image.c +++ b/qemu/roms/ipxe/src/arch/i386/image/pxe_image.c @@ -15,9 +15,13 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. */ -FILE_LICENCE ( GPL2_OR_LATER ); +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); /** * @file @@ -34,6 +38,8 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <ipxe/netdevice.h> #include <ipxe/features.h> #include <ipxe/console.h> +#include <ipxe/efi/efi.h> +#include <ipxe/efi/IndustryStandard/PeImage.h> FEATURE ( FEATURE_IMAGE, "PXE", DHCP_EB_FEATURE_PXE, 1 ); @@ -121,9 +127,45 @@ int pxe_probe ( struct image *image ) { return 0; } +/** + * Probe PXE image (with rejection of potential EFI images) + * + * @v image PXE file + * @ret rc Return status code + */ +int pxe_probe_no_mz ( struct image *image ) { + uint16_t magic; + int rc; + + /* Probe PXE image */ + if ( ( rc = pxe_probe ( image ) ) != 0 ) + return rc; + + /* Reject image with an "MZ" signature which may indicate an + * EFI image incorrectly handed out to a BIOS system. + */ + if ( image->len >= sizeof ( magic ) ) { + copy_from_user ( &magic, image->data, 0, sizeof ( magic ) ); + if ( magic == cpu_to_le16 ( EFI_IMAGE_DOS_SIGNATURE ) ) { + DBGC ( image, "IMAGE %p may be an EFI image\n", + image ); + return -ENOTTY; + } + } + + return 0; +} + /** PXE image type */ -struct image_type pxe_image_type __image_type ( PROBE_PXE ) = { - .name = "PXE", - .probe = pxe_probe, - .exec = pxe_exec, +struct image_type pxe_image_type[] __image_type ( PROBE_PXE ) = { + { + .name = "PXE-NBP", + .probe = pxe_probe_no_mz, + .exec = pxe_exec, + }, + { + .name = "PXE-NBP (may be EFI?)", + .probe = pxe_probe, + .exec = pxe_exec, + }, }; |