shim: move the bulk of set_second_stage() to its own file

This moves set_second_stage() and some of the helper functions it uses
out of shim.c, so that it's easier to write test cases for.

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

Makefile

@@ -38,7 +38,7 @@ CFLAGS += -DENABLE_SHIM_CERT
 else
 TARGETS += $(MMNAME) $(FBNAME)
 endif
-OBJS	= shim.o mok.o netboot.o cert.o replacements.o tpm.o version.o errlog.o sbat.o sbat_data.o pe.o httpboot.o csv.o
+OBJS	= shim.o mok.o netboot.o cert.o replacements.o tpm.o version.o errlog.o sbat.o sbat_data.o pe.o httpboot.o csv.o load-options.o
 KEYS	= shim_cert.h ocsp.* ca.* shim.crt shim.csr shim.p12 shim.pem shim.key shim.cer
 ORIG_SOURCES	= shim.c mok.c netboot.c replacements.c tpm.c errlog.c sbat.c pe.c httpboot.c shim.h version.h $(wildcard include/*.h)
 MOK_OBJS = MokManager.o PasswordCrypt.o crypt_blowfish.o errlog.o sbat_data.o

include/load-options.h

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+/*
+ * load-options.h - all the stuff we need to parse the load options
+ */
+
+#ifndef SHIM_ARGV_H_
+#define SHIM_ARGV_H_
+
+EFI_STATUS generate_path_from_image_path(EFI_LOADED_IMAGE *li,
+					 CHAR16 *ImagePath,
+					 CHAR16 **PathName);
+
+EFI_STATUS parse_load_options(EFI_LOADED_IMAGE *li);
+
+extern CHAR16 *second_stage;
+extern void *load_options;
+extern UINT32 load_options_size;
+
+#endif /* !SHIM_ARGV_H_ */
+// vim:fenc=utf-8:tw=75:noet