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grub2/0144-grub-module-verifier-report-the-filename-or-modname-.patch
Javier Martinez Canillas 7e98da058f
Cleanup our patchset to reduce the number of patches 
This change reorganizes and cleanups our patches to reduce the patch number
from 314 patches to 187. That's achieved by dropping patches that are later
reverted and squashing fixes for earlier patches that introduced features.

There are no code changes and the diff with upstream is the same before and
after the cleanup. Having fewer patches makes easier to manage the patchset
and also will ease to rebase them on top of the latest grub-2.04 release.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
2019-07-16 12:30:06 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 1 Aug 2018 10:12:47 -0400
Subject: [PATCH] grub-module-verifier: report the filename or modname in
errors.
Make it so that when grub-module-verifier complains of an issue, it tells you
which module the issue was with.
Signed-off-by: Peter Jones <pjones@redhat.com>
---
util/grub-module-verifier.c | 6 ++---
util/grub-module-verifierXX.c | 58 ++++++++++++++++++++++--------------------
include/grub/module_verifier.h | 4 +--
3 files changed, 36 insertions(+), 32 deletions(-)
diff --git a/util/grub-module-verifier.c b/util/grub-module-verifier.c
index a79271f6631..03ba1ab437a 100644
--- a/util/grub-module-verifier.c
+++ b/util/grub-module-verifier.c
@@ -157,7 +157,7 @@ main (int argc, char **argv)
if (strcmp(archs[arch].name, argv[2]) == 0)
break;
if (arch == ARRAY_SIZE(archs))
- grub_util_error("unknown arch: %s", argv[2]);
+ grub_util_error("%s: unknown arch: %s", argv[1], argv[2]);
for (whitelist = 0; whitelist < ARRAY_SIZE(whitelists); whitelist++)
if (strcmp(whitelists[whitelist].arch, argv[2]) == 0
@@ -169,8 +169,8 @@ main (int argc, char **argv)
module_size = grub_util_get_image_size (argv[1]);
module_img = grub_util_read_image (argv[1]);
if (archs[arch].voidp_sizeof == 8)
- grub_module_verify64(module_img, module_size, &archs[arch], whitelist_empty);
+ grub_module_verify64(argv[1], module_img, module_size, &archs[arch], whitelist_empty);
else
- grub_module_verify32(module_img, module_size, &archs[arch], whitelist_empty);
+ grub_module_verify32(argv[1], module_img, module_size, &archs[arch], whitelist_empty);
return 0;
}
diff --git a/util/grub-module-verifierXX.c b/util/grub-module-verifierXX.c
index 597ded14362..a98e2f9b1ac 100644
--- a/util/grub-module-verifierXX.c
+++ b/util/grub-module-verifierXX.c
@@ -160,14 +160,15 @@ find_section (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e, const c
}
static void
-check_license (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
+check_license (const char * const filename,
+ const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
{
Elf_Shdr *s = find_section (arch, e, ".module_license");
if (s && (strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv3") == 0
|| strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv3+") == 0
|| strcmp ((char *) e + grub_target_to_host(s->sh_offset), "LICENSE=GPLv2+") == 0))
return;
- grub_util_error ("incompatible license");
+ grub_util_error ("%s: incompatible license", filename);
}
static Elf_Sym *
@@ -233,10 +234,10 @@ check_symbols (const struct grub_module_verifier_arch *arch,
s = find_section (arch, e, ".moddeps");
if (!s)
- grub_util_error ("no symbol table and no .moddeps section");
+ grub_util_error ("%s: no symbol table and no .moddeps section", modname);
if (!s->sh_size)
- grub_util_error ("no symbol table and empty .moddeps section");
+ grub_util_error ("%s: no symbol table and empty .moddeps section", modname);
return;
}
@@ -257,7 +258,7 @@ check_symbols (const struct grub_module_verifier_arch *arch,
break;
default:
- return grub_util_error ("unknown symbol type `%d'", (int) type);
+ return grub_util_error ("%s: unknown symbol type `%d'", modname, (int) type);
}
}
}
@@ -283,7 +284,8 @@ is_symbol_local(Elf_Sym *sym)
}
static void
-section_check_relocations (const struct grub_module_verifier_arch *arch, void *ehdr,
+section_check_relocations (const char * const modname,
+ const struct grub_module_verifier_arch *arch, void *ehdr,
Elf_Shdr *s, size_t target_seg_size)
{
Elf_Rel *rel, *max;
@@ -292,7 +294,7 @@ section_check_relocations (const struct grub_module_verifier_arch *arch, void *e
symtab = get_symtab (arch, ehdr, &symtabsize, &symtabentsize);
if (!symtab)
- grub_util_error ("relocation without symbol table");
+ grub_util_error ("%s: relocation without symbol table", modname);
for (rel = (Elf_Rel *) ((char *) ehdr + grub_target_to_host (s->sh_offset)),
max = (Elf_Rel *) ((char *) rel + grub_target_to_host (s->sh_size));
@@ -303,7 +305,7 @@ section_check_relocations (const struct grub_module_verifier_arch *arch, void *e
unsigned i;
if (target_seg_size < grub_target_to_host (rel->r_offset))
- grub_util_error ("reloc offset is out of the segment");
+ grub_util_error ("%s: reloc offset is out of the segment", modname);
grub_uint32_t type = ELF_R_TYPE (grub_target_to_host (rel->r_info));
@@ -316,17 +318,17 @@ section_check_relocations (const struct grub_module_verifier_arch *arch, void *e
if (arch->supported_relocations[i] != -1)
continue;
if (!arch->short_relocations)
- grub_util_error ("unsupported relocation 0x%x", type);
+ grub_util_error ("%s: unsupported relocation 0x%x", modname, type);
for (i = 0; arch->short_relocations[i] != -1; i++)
if (type == arch->short_relocations[i])
break;
if (arch->short_relocations[i] == -1)
- grub_util_error ("unsupported relocation 0x%x", type);
+ grub_util_error ("%s: unsupported relocation 0x%x", modname, type);
sym = (Elf_Sym *) ((char *) symtab + symtabentsize * ELF_R_SYM (grub_target_to_host (rel->r_info)));
if (is_symbol_local (sym))
continue;
- grub_util_error ("relocation 0x%x is not module-local", type);
+ grub_util_error ("%s: relocation 0x%x is not module-local", modname, type);
}
#if defined(MODULEVERIFIER_ELF64)
if (arch->machine == EM_AARCH64)
@@ -351,11 +353,11 @@ section_check_relocations (const struct grub_module_verifier_arch *arch, void *e
&& ELF_R_TYPE (rel2->r_info) == R_AARCH64_LD64_GOT_LO12_NC)
break;
if (rel2 >= (Elf_Rela *) max)
- grub_util_error ("ADR_GOT_PAGE without matching LD64_GOT_LO12_NC");
+ grub_util_error ("%s: ADR_GOT_PAGE without matching LD64_GOT_LO12_NC", modname);
break;
case R_AARCH64_LD64_GOT_LO12_NC:
if (unmatched_adr_got_page == 0)
- grub_util_error ("LD64_GOT_LO12_NC without matching ADR_GOT_PAGE");
+ grub_util_error ("%s: LD64_GOT_LO12_NC without matching ADR_GOT_PAGE", modname);
unmatched_adr_got_page--;
break;
}
@@ -365,7 +367,8 @@ section_check_relocations (const struct grub_module_verifier_arch *arch, void *e
}
static void
-check_relocations (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
+check_relocations (const char * const modname,
+ const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
{
Elf_Shdr *s;
unsigned i;
@@ -378,21 +381,22 @@ check_relocations (const struct grub_module_verifier_arch *arch, Elf_Ehdr *e)
Elf_Shdr *ts;
if (grub_target_to_host32 (s->sh_type) == SHT_REL && !(arch->flags & GRUB_MODULE_VERIFY_SUPPORTS_REL))
- grub_util_error ("unsupported SHT_REL");
+ grub_util_error ("%s: unsupported SHT_REL", modname);
if (grub_target_to_host32 (s->sh_type) == SHT_RELA && !(arch->flags & GRUB_MODULE_VERIFY_SUPPORTS_RELA))
- grub_util_error ("unsupported SHT_RELA");
+ grub_util_error ("%s: unsupported SHT_RELA", modname);
/* Find the target segment. */
if (grub_target_to_host32 (s->sh_info) >= grub_target_to_host16 (e->e_shnum))
- grub_util_error ("orphaned reloc section");
+ grub_util_error ("%s: orphaned reloc section", modname);
ts = (Elf_Shdr *) ((char *) e + grub_target_to_host (e->e_shoff) + grub_target_to_host32 (s->sh_info) * grub_target_to_host16 (e->e_shentsize));
- section_check_relocations (arch, e, s, grub_target_to_host (ts->sh_size));
+ section_check_relocations (modname, arch, e, s, grub_target_to_host (ts->sh_size));
}
}
void
-SUFFIX(grub_module_verify) (void *module_img, size_t size,
+SUFFIX(grub_module_verify) (const char * const filename,
+ void *module_img, size_t size,
const struct grub_module_verifier_arch *arch,
const char **whitelist_empty)
{
@@ -400,7 +404,7 @@ SUFFIX(grub_module_verify) (void *module_img, size_t size,
/* Check the header size. */
if (size < sizeof (Elf_Ehdr))
- grub_util_error ("ELF header smaller than expected");
+ grub_util_error ("%s: ELF header smaller than expected", filename);
/* Check the magic numbers. */
if (e->e_ident[EI_MAG0] != ELFMAG0
@@ -409,36 +413,36 @@ SUFFIX(grub_module_verify) (void *module_img, size_t size,
|| e->e_ident[EI_MAG3] != ELFMAG3
|| e->e_ident[EI_VERSION] != EV_CURRENT
|| grub_target_to_host32 (e->e_version) != EV_CURRENT)
- grub_util_error ("invalid arch-independent ELF magic");
+ grub_util_error ("%s: invalid arch-independent ELF magic", filename);
if (e->e_ident[EI_CLASS] != ELFCLASSXX
|| e->e_ident[EI_DATA] != (arch->bigendian ? ELFDATA2MSB : ELFDATA2LSB)
|| grub_target_to_host16 (e->e_machine) != arch->machine)
- grub_util_error ("invalid arch-dependent ELF magic");
+ grub_util_error ("%s: invalid arch-dependent ELF magic", filename);
if (grub_target_to_host16 (e->e_type) != ET_REL)
{
- grub_util_error ("this ELF file is not of the right type");
+ grub_util_error ("%s: this ELF file is not of the right type", filename);
}
/* Make sure that every section is within the core. */
if (size < grub_target_to_host (e->e_shoff)
+ (grub_uint32_t) grub_target_to_host16 (e->e_shentsize) * grub_target_to_host16(e->e_shnum))
{
- grub_util_error ("ELF sections outside core");
+ grub_util_error ("%s: ELF sections outside core", filename);
}
- check_license (arch, e);
+ check_license (filename, arch, e);
Elf_Shdr *s;
const char *modname;
s = find_section (arch, e, ".modname");
if (!s)
- grub_util_error ("no module name found");
+ grub_util_error ("%s: no module name found", filename);
modname = (const char *) e + grub_target_to_host (s->sh_offset);
check_symbols(arch, e, modname, whitelist_empty);
- check_relocations(arch, e);
+ check_relocations(modname, arch, e);
}
diff --git a/include/grub/module_verifier.h b/include/grub/module_verifier.h
index f4870cb9c2d..ba21c75e2eb 100644
--- a/include/grub/module_verifier.h
+++ b/include/grub/module_verifier.h
@@ -16,5 +16,5 @@ struct grub_module_verifier_arch {
const int *short_relocations;
};
-void grub_module_verify64(void *module_img, size_t module_size, const struct grub_module_verifier_arch *arch, const char **whitelist_empty);
-void grub_module_verify32(void *module_img, size_t module_size, const struct grub_module_verifier_arch *arch, const char **whitelist_empty);
+void grub_module_verify64(const char * const filename, void *module_img, size_t module_size, const struct grub_module_verifier_arch *arch, const char **whitelist_empty);
+void grub_module_verify32(const char * const filename, void *module_img, size_t module_size, const struct grub_module_verifier_arch *arch, const char **whitelist_empty);
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