From ea5950d8597278ba9066f24d7abcee403f825668 Mon Sep 17 00:00:00 2001
From: Marco A Benatto <mbenatto@redhat.com>
Date: Wed, 23 Sep 2020 11:33:33 -0400
Subject: [PATCH 07/46] verifiers: Move verifiers API to kernel image

Move verifiers API from a module to the kernel image, so it can be
used there as well. There are no functional changes in this patch.

Signed-off-by: Marco A Benatto <mbenatto@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
 grub-core/Makefile.am                    | 1 +
 grub-core/Makefile.core.def              | 6 +-----
 grub-core/kern/main.c                    | 4 ++++
 grub-core/{commands => kern}/verifiers.c | 8 ++------
 include/grub/verify.h                    | 9 ++++++---
 5 files changed, 14 insertions(+), 14 deletions(-)
 rename grub-core/{commands => kern}/verifiers.c (97%)

diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am
index 5ff3afd62..3569b7101 100644
--- a/grub-core/Makefile.am
+++ b/grub-core/Makefile.am
@@ -91,6 +91,7 @@ KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/parser.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/partition.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/term.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/time.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/verify.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/mm_private.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/net.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/memory.h
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 072b1628c..5cb869f5b 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -140,6 +140,7 @@ kernel = {
   common = kern/rescue_reader.c;
   common = kern/term.c;
   common = kern/backtrace.c;
+  common = kern/verifiers.c;
 
   x86 = kern/i386/backtrace.c;
   i386_xen = kern/i386/backtrace.c;
@@ -943,11 +944,6 @@ module = {
   cppflags = '-I$(srcdir)/lib/posix_wrap';
 };
 
-module = {
-  name = verifiers;
-  common = commands/verifiers.c;
-};
-
 module = {
   name = shim_lock;
   common = commands/efi/shim_lock.c;
diff --git a/grub-core/kern/main.c b/grub-core/kern/main.c
index 9cad0c448..73967e2f5 100644
--- a/grub-core/kern/main.c
+++ b/grub-core/kern/main.c
@@ -29,6 +29,7 @@
 #include <grub/command.h>
 #include <grub/reader.h>
 #include <grub/parser.h>
+#include <grub/verify.h>
 
 #ifdef GRUB_MACHINE_PCBIOS
 #include <grub/machine/memory.h>
@@ -274,6 +275,9 @@ grub_main (void)

   grub_boot_time ("After machine init.");
 
+  /* Init verifiers API. */
+  grub_verifiers_init ();
+
   grub_load_config ();
 
   grub_boot_time ("Before loading embedded modules.");
diff --git a/grub-core/commands/verifiers.c b/grub-core/kern/verifiers.c
similarity index 97%
rename from grub-core/commands/verifiers.c
rename to grub-core/kern/verifiers.c
index 7b9297cd3..3d19bffd1 100644
--- a/grub-core/commands/verifiers.c
+++ b/grub-core/kern/verifiers.c
@@ -218,12 +218,8 @@ grub_verify_string (char *str, enum grub_verify_string_type type)
   return GRUB_ERR_NONE;
 }
 
-GRUB_MOD_INIT(verifiers)
+void
+grub_verifiers_init (void)
 {
   grub_file_filter_register (GRUB_FILE_FILTER_VERIFY, grub_verifiers_open);
 }
-
-GRUB_MOD_FINI(verifiers)
-{
-  grub_file_filter_unregister (GRUB_FILE_FILTER_VERIFY);
-}
diff --git a/include/grub/verify.h b/include/grub/verify.h
index ea0491433..cd129c398 100644
--- a/include/grub/verify.h
+++ b/include/grub/verify.h
@@ -64,7 +64,10 @@ struct grub_file_verifier
   grub_err_t (*verify_string) (char *str, enum grub_verify_string_type type);
 };
 
-extern struct grub_file_verifier *grub_file_verifiers;
+extern struct grub_file_verifier *EXPORT_VAR (grub_file_verifiers);
+
+extern void
+grub_verifiers_init (void);
 
 static inline void
 grub_verifier_register (struct grub_file_verifier *ver)
@@ -78,7 +81,7 @@ grub_verifier_unregister (struct grub_file_verifier *ver)
   grub_list_remove (GRUB_AS_LIST (ver));
 }
 
-grub_err_t
-grub_verify_string (char *str, enum grub_verify_string_type type);
+extern grub_err_t
+EXPORT_FUNC (grub_verify_string) (char *str, enum grub_verify_string_type type);
 
 #endif /* ! GRUB_VERIFY_HEADER */
-- 
2.26.2