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[SECURITY PATCH 103/117] util/mkimage: Use grub_host_to_target32() inste


From: Daniel Kiper
Subject: [SECURITY PATCH 103/117] util/mkimage: Use grub_host_to_target32() instead of grub_cpu_to_le32()
Date: Tue, 2 Mar 2021 19:01:50 +0100

From: Peter Jones <pjones@redhat.com>

The latter doesn't take into account the target image endianness. There is
a grub_cpu_to_le32_compile_time() but no compile time variant for function
grub_host_to_target32(). So, let's keep using the other one for this case.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
 util/mkimage.c | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/util/mkimage.c b/util/mkimage.c
index 32bb8ea68..02944f28e 100644
--- a/util/mkimage.c
+++ b/util/mkimage.c
@@ -1302,10 +1302,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
               + sizeof (struct grub_pe32_coff_header));
            o->magic = grub_host_to_target16 (GRUB_PE32_PE32_MAGIC);
            o->code_size = grub_host_to_target32 (layout.exec_size);
-           o->data_size = grub_cpu_to_le32 (reloc_addr - layout.exec_size
+           o->data_size = grub_host_to_target32 (reloc_addr - layout.exec_size
                                             - header_size);
-           o->entry_addr = grub_cpu_to_le32 (layout.start_address);
-           o->code_base = grub_cpu_to_le32 (header_size);
+           o->entry_addr = grub_host_to_target32 (layout.start_address);
+           o->code_base = grub_host_to_target32 (header_size);
 
            o->data_base = grub_host_to_target32 (header_size + 
layout.exec_size);
 
@@ -1339,10 +1339,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
               + sizeof (struct grub_pe32_coff_header));
            o->magic = grub_host_to_target16 (GRUB_PE32_PE64_MAGIC);
            o->code_size = grub_host_to_target32 (layout.exec_size);
-           o->data_size = grub_cpu_to_le32 (reloc_addr - layout.exec_size
+           o->data_size = grub_host_to_target32 (reloc_addr - layout.exec_size
                                             - header_size);
-           o->entry_addr = grub_cpu_to_le32 (layout.start_address);
-           o->code_base = grub_cpu_to_le32 (header_size);
+           o->entry_addr = grub_host_to_target32 (layout.start_address);
+           o->code_base = grub_host_to_target32 (header_size);
            o->image_base = 0;
            o->section_alignment = grub_host_to_target32 
(image_target->section_align);
            o->file_alignment = grub_host_to_target32 
(GRUB_PE32_FILE_ALIGNMENT);
@@ -1366,10 +1366,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
        /* The sections.  */
        text_section = sections;
        strcpy (text_section->name, ".text");
-       text_section->virtual_size = grub_cpu_to_le32 (layout.exec_size);
-       text_section->virtual_address = grub_cpu_to_le32 (header_size);
-       text_section->raw_data_size = grub_cpu_to_le32 (layout.exec_size);
-       text_section->raw_data_offset = grub_cpu_to_le32 (header_size);
+       text_section->virtual_size = grub_host_to_target32 (layout.exec_size);
+       text_section->virtual_address = grub_host_to_target32 (header_size);
+       text_section->raw_data_size = grub_host_to_target32 (layout.exec_size);
+       text_section->raw_data_offset = grub_host_to_target32 (header_size);
        text_section->characteristics = grub_cpu_to_le32_compile_time (
                                                  GRUB_PE32_SCN_CNT_CODE
                                                | GRUB_PE32_SCN_MEM_EXECUTE
@@ -1377,10 +1377,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
 
        data_section = text_section + 1;
        strcpy (data_section->name, ".data");
-       data_section->virtual_size = grub_cpu_to_le32 (layout.kernel_size - 
layout.exec_size);
-       data_section->virtual_address = grub_cpu_to_le32 (header_size + 
layout.exec_size);
-       data_section->raw_data_size = grub_cpu_to_le32 (layout.kernel_size - 
layout.exec_size);
-       data_section->raw_data_offset = grub_cpu_to_le32 (header_size + 
layout.exec_size);
+       data_section->virtual_size = grub_host_to_target32 (layout.kernel_size 
- layout.exec_size);
+       data_section->virtual_address = grub_host_to_target32 (header_size + 
layout.exec_size);
+       data_section->raw_data_size = grub_host_to_target32 (layout.kernel_size 
- layout.exec_size);
+       data_section->raw_data_offset = grub_host_to_target32 (header_size + 
layout.exec_size);
        data_section->characteristics
          = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
                              | GRUB_PE32_SCN_MEM_READ
@@ -1388,10 +1388,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
     
        mods_section = data_section + 1;
        strcpy (mods_section->name, "mods");
-       mods_section->virtual_size = grub_cpu_to_le32 (reloc_addr - 
layout.kernel_size - header_size);
-       mods_section->virtual_address = grub_cpu_to_le32 (header_size + 
layout.kernel_size + layout.bss_size);
-       mods_section->raw_data_size = grub_cpu_to_le32 (reloc_addr - 
layout.kernel_size - header_size);
-       mods_section->raw_data_offset = grub_cpu_to_le32 (header_size + 
layout.kernel_size);
+       mods_section->virtual_size = grub_host_to_target32 (reloc_addr - 
layout.kernel_size - header_size);
+       mods_section->virtual_address = grub_host_to_target32 (header_size + 
layout.kernel_size + layout.bss_size);
+       mods_section->raw_data_size = grub_host_to_target32 (reloc_addr - 
layout.kernel_size - header_size);
+       mods_section->raw_data_offset = grub_host_to_target32 (header_size + 
layout.kernel_size);
        mods_section->characteristics
          = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
                              | GRUB_PE32_SCN_MEM_READ
@@ -1399,10 +1399,10 @@ grub_install_generate_image (const char *dir, const 
char *prefix,
 
        reloc_section = mods_section + 1;
        strcpy (reloc_section->name, ".reloc");
-       reloc_section->virtual_size = grub_cpu_to_le32 (layout.reloc_size);
-       reloc_section->virtual_address = grub_cpu_to_le32 (reloc_addr + 
layout.bss_size);
-       reloc_section->raw_data_size = grub_cpu_to_le32 (layout.reloc_size);
-       reloc_section->raw_data_offset = grub_cpu_to_le32 (reloc_addr);
+       reloc_section->virtual_size = grub_host_to_target32 (layout.reloc_size);
+       reloc_section->virtual_address = grub_host_to_target32 (reloc_addr + 
layout.bss_size);
+       reloc_section->raw_data_size = grub_host_to_target32 
(layout.reloc_size);
+       reloc_section->raw_data_offset = grub_host_to_target32 (reloc_addr);
        reloc_section->characteristics
          = grub_cpu_to_le32_compile_time (GRUB_PE32_SCN_CNT_INITIALIZED_DATA
                              | GRUB_PE32_SCN_MEM_DISCARDABLE
-- 
2.11.0




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