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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Robbie Harwood <rharwood@redhat.com>
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Date: Tue, 12 Oct 2021 12:34:23 -0400
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Subject: [PATCH] Print module name on license check failure
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At the very least, this will make it easier to track down the problem
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module - or, if something else has gone wrong, provide more information
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for debugging.
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Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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---
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grub-core/kern/dl.c | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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diff --git a/grub-core/kern/dl.c b/grub-core/kern/dl.c
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index 9557254035e..f3044945742 100644
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--- a/grub-core/kern/dl.c
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+++ b/grub-core/kern/dl.c
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@@ -528,14 +528,16 @@ grub_dl_find_section_index (Elf_Ehdr *e, const char *name)
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Be sure to understand your license obligations.
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*/
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static grub_err_t
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-grub_dl_check_license (Elf_Ehdr *e)
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+grub_dl_check_license (grub_dl_t mod, Elf_Ehdr *e)
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{
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Elf_Shdr *s = grub_dl_find_section (e, ".module_license");
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if (s && (grub_strcmp ((char *) e + s->sh_offset, "LICENSE=GPLv3") == 0
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|| grub_strcmp ((char *) e + s->sh_offset, "LICENSE=GPLv3+") == 0
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|| grub_strcmp ((char *) e + s->sh_offset, "LICENSE=GPLv2+") == 0))
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return GRUB_ERR_NONE;
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- return grub_error (GRUB_ERR_BAD_MODULE, "incompatible license");
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+ return grub_error (GRUB_ERR_BAD_MODULE,
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+ "incompatible license in module %s: %s", mod->name,
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+ (char *) e + s->sh_offset);
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}
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static grub_err_t
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@@ -743,8 +745,8 @@ grub_dl_load_core_noinit (void *addr, grub_size_t size)
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constitutes linking) and GRUB core being licensed under GPLv3+.
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Be sure to understand your license obligations.
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*/
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- if (grub_dl_check_license (e)
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- || grub_dl_resolve_name (mod, e)
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+ if (grub_dl_resolve_name (mod, e)
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+ || grub_dl_check_license (mod, e)
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|| grub_dl_resolve_dependencies (mod, e)
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|| grub_dl_load_segments (mod, e)
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|| grub_dl_resolve_symbols (mod, e)
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