Since different distros name grub*.efi differently, make it compile-time.

Basically, if you don't want grub.efi, you do:

make 'DEFAULT_LOADER=\\\\grubx64.efi'

Signed-off-by: Peter Jones <pjones@redhat.com>

Makefile

@@ -14,9 +14,12 @@ EFI_LIBS	= -lefi -lgnuefi --start-group Cryptlib/libcryptlib.a Cryptlib/OpenSSL/
 EFI_CRT_OBJS 	= $(EFI_PATH)/crt0-efi-$(ARCH).o
 EFI_LDS		= elf_$(ARCH)_efi.lds
 
+DEFAULT_LOADER	:= \\\\grub.efi
 CFLAGS		= -ggdb -O0 -fno-stack-protector -fno-strict-aliasing -fpic \
 		  -fshort-wchar -Wall -Werror -mno-red-zone -maccumulate-outgoing-args \
 		  -mno-mmx -mno-sse \
+		  "-DDEFAULT_LOADER=L\"$(DEFAULT_LOADER)\"" \
+		  "-DDEFAULT_LOADER_CHAR=\"$(DEFAULT_LOADER)\"" \
 		  $(EFI_INCLUDES)
 ifeq ($(ARCH),x86_64)
 	CFLAGS	+= -DEFI_FUNCTION_WRAPPER -DGNU_EFI_USE_MS_ABI

netboot.c

@@ -39,8 +39,6 @@
 #include "shim.h"
 #include "netboot.h"
 
-#define DEFAULT_LOADER "/grub.efi"
-
 static inline unsigned short int __swap16(unsigned short int x)
 {
         __asm__("xchgb %b0,%h0"
@@ -63,6 +61,24 @@ typedef struct {
 	UINT8 Data[1];
 } EFI_DHCP6_PACKET_OPTION;
 
+static CHAR8 *
+translate_slashes(char *str)
+{
+	int i;
+	int j;
+	if (str == NULL)
+		return (CHAR8 *)str;
+
+	for (i = 0, j = 0; str[i] != '\0'; i++, j++) {
+		if (str[i] == '\\') {
+			str[j] = '/';
+			if (str[i+1] == '\\')
+				i++;
+		}
+	}
+	return (CHAR8 *)str;
+}
+
 /*
  * usingNetboot
  * Returns TRUE if we identify a protocol that is enabled and Providing us with
@@ -229,7 +245,7 @@ static BOOLEAN extract_tftp_info(CHAR8 *url)
 {
 	CHAR8 *start, *end;
 	char ip6str[40];
-	CHAR8 *template = DEFAULT_LOADER;
+	CHAR8 *template = (CHAR8 *)translate_slashes(DEFAULT_LOADER_CHAR);
 
 	if (strncmp((UINT8 *)url, (UINT8 *)"tftp://", 7)) {
 		Print(L"URLS MUST START WITH tftp://\n");
@@ -289,7 +305,7 @@ static EFI_STATUS parseDhcp6()
 
 static EFI_STATUS parseDhcp4()
 {
-	CHAR8 *template = DEFAULT_LOADER;
+	CHAR8 *template = (CHAR8 *)DEFAULT_LOADER_CHAR;
 	full_path = AllocateZeroPool(strlen(template)+1);
 
 	if (!full_path)

shim.c

@@ -43,7 +43,6 @@
 #include "shim_cert.h"
 #include "ucs2.h"
 
-#define DEFAULT_LOADER L"\\grub.efi"
 #define FALLBACK L"\\fallback.efi"
 #define MOK_MANAGER L"\\MokManager.efi"