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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 16:17:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-27 16:17:42 -0800
commite3c4877de8b9d93bd47b6ee88eb594b1c1e10da5 (patch)
tree17ade3a3a13b1e7768abe3561b6808dc4980a5f6 /arch/x86/boot
parent18a44a7ff1075ce5157ac07cde573aca6b5e9973 (diff)
parent6b59e366e074d3962e04f01efb8acc10a33c0e1e (diff)
Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/EFI changes from Peter Anvin: - Improve the initrd handling in the EFI boot stub by allowing forward slashes in the pathname - from Chun-Yi Lee. - Cleanup code duplication in the EFI mixed kernel/firmware code - from Satoru Takeuchi. - efivarfs bug fixes for more strict filename validation, with lots of input from Al Viro. * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, efi: remove duplicate code in setup_arch() by using, efi_is_native() efivarfs: guid part of filenames are case-insensitive efivarfs: Validate filenames much more aggressively efivarfs: Use sizeof() instead of magic number x86, efi: Allow slash in file path of initrd
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/eboot.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index f8fa41190c35..c205035a6b96 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -19,23 +19,28 @@
static efi_system_table_t *sys_table;
+static void efi_char16_printk(efi_char16_t *str)
+{
+ struct efi_simple_text_output_protocol *out;
+
+ out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
+ efi_call_phys2(out->output_string, out, str);
+}
+
static void efi_printk(char *str)
{
char *s8;
for (s8 = str; *s8; s8++) {
- struct efi_simple_text_output_protocol *out;
efi_char16_t ch[2] = { 0 };
ch[0] = *s8;
- out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
-
if (*s8 == '\n') {
efi_char16_t nl[2] = { '\r', 0 };
- efi_call_phys2(out->output_string, out, nl);
+ efi_char16_printk(nl);
}
- efi_call_phys2(out->output_string, out, ch);
+ efi_char16_printk(ch);
}
}
@@ -709,7 +714,12 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
if ((u8 *)p >= (u8 *)filename_16 + sizeof(filename_16))
break;
- *p++ = *str++;
+ if (*str == '/') {
+ *p++ = '\\';
+ *str++;
+ } else {
+ *p++ = *str++;
+ }
}
*p = '\0';
@@ -737,7 +747,9 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
status = efi_call_phys5(fh->open, fh, &h, filename_16,
EFI_FILE_MODE_READ, (u64)0);
if (status != EFI_SUCCESS) {
- efi_printk("Failed to open initrd file\n");
+ efi_printk("Failed to open initrd file: ");
+ efi_char16_printk(filename_16);
+ efi_printk("\n");
goto close_handles;
}