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openSUSE:Leap:15.4:Update
grub2.24427
0003-efi-Return-grub_efi_status_t-from-grub_efi...
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File 0003-efi-Return-grub_efi_status_t-from-grub_efi_get_varia.patch of Package grub2.24427
From d9f7be9d0a1d717fd95dc69d9d7e3cf7feb481c3 Mon Sep 17 00:00:00 2001 From: Daniel Kiper <daniel.kiper@oracle.com> Date: Thu, 3 Dec 2020 16:01:46 +0100 Subject: [PATCH 03/41] efi: Return grub_efi_status_t from grub_efi_get_variable() This is needed to properly detect and report UEFI Secure Boot status to the x86 Linux kernel. The functionality will be added by subsequent patches. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> 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/commands/efi/efifwsetup.c | 8 ++++---- grub-core/kern/efi/efi.c | 16 +++++++++------- grub-core/video/efi_gop.c | 2 +- include/grub/efi/efi.h | 7 ++++--- 4 files changed, 18 insertions(+), 15 deletions(-) diff --git a/grub-core/commands/efi/efifwsetup.c b/grub-core/commands/efi/efifwsetup.c index 7a137a72a..eaca03283 100644 --- a/grub-core/commands/efi/efifwsetup.c +++ b/grub-core/commands/efi/efifwsetup.c @@ -38,8 +38,8 @@ grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)), grub_size_t oi_size; grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID; - old_os_indications = grub_efi_get_variable ("OsIndications", &global, - &oi_size); + grub_efi_get_variable ("OsIndications", &global, &oi_size, + (void **) &old_os_indications); if (old_os_indications != NULL && oi_size == sizeof (os_indications)) os_indications |= *old_os_indications; @@ -63,8 +63,8 @@ efifwsetup_is_supported (void) grub_size_t oi_size = 0; grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID; - os_indications_supported = grub_efi_get_variable ("OsIndicationsSupported", - &global, &oi_size); + grub_efi_get_variable ("OsIndicationsSupported", &global, &oi_size, + (void **) &os_indications_supported); if (!os_indications_supported) return 0; diff --git a/grub-core/kern/efi/efi.c b/grub-core/kern/efi/efi.c index d81ca0a82..87ccbcbd1 100644 --- a/grub-core/kern/efi/efi.c +++ b/grub-core/kern/efi/efi.c @@ -222,9 +222,9 @@ grub_efi_set_variable(const char *var, const grub_efi_guid_t *guid, return grub_error (GRUB_ERR_IO, "could not set EFI variable `%s'", var); } -void * +grub_efi_status_t grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid, - grub_size_t *datasize_out) + grub_size_t *datasize_out, void **data_out) { grub_efi_status_t status; grub_efi_uintn_t datasize = 0; @@ -233,13 +233,14 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid, void *data; grub_size_t len, len16; + *data_out = NULL; *datasize_out = 0; len = grub_strlen (var); len16 = len * GRUB_MAX_UTF16_PER_UTF8; var16 = grub_calloc (len16 + 1, sizeof (var16[0])); if (!var16) - return NULL; + return GRUB_EFI_OUT_OF_RESOURCES; len16 = grub_utf8_to_utf16 (var16, len16, (grub_uint8_t *) var, len, NULL); var16[len16] = 0; @@ -250,14 +251,14 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid, if (status != GRUB_EFI_BUFFER_TOO_SMALL || !datasize) { grub_free (var16); - return NULL; + return status; } data = grub_malloc (datasize); if (!data) { grub_free (var16); - return NULL; + return GRUB_EFI_OUT_OF_RESOURCES; } status = efi_call_5 (r->get_variable, var16, guid, NULL, &datasize, data); @@ -265,12 +266,13 @@ grub_efi_get_variable (const char *var, const grub_efi_guid_t *guid, if (status == GRUB_EFI_SUCCESS) { + *data_out = data; *datasize_out = datasize; - return data; + return status; } grub_free (data); - return NULL; + return status; } grub_efi_boolean_t diff --git a/grub-core/video/efi_gop.c b/grub-core/video/efi_gop.c index df29853f0..962f0eb8f 100644 --- a/grub-core/video/efi_gop.c +++ b/grub-core/video/efi_gop.c @@ -310,7 +310,7 @@ grub_video_gop_get_edid (struct grub_video_edid_info *edid_info) char edidname[] = "agp-internal-edid"; grub_size_t datasize; grub_uint8_t *data; - data = grub_efi_get_variable (edidname, &efi_var_guid, &datasize); + grub_efi_get_variable (edidname, &efi_var_guid, &datasize, (void **) &data); if (data && datasize > 16) { copy_size = datasize - 16; diff --git a/include/grub/efi/efi.h b/include/grub/efi/efi.h index 13bc67d57..bf9c3a911 100644 --- a/include/grub/efi/efi.h +++ b/include/grub/efi/efi.h @@ -77,9 +77,10 @@ grub_err_t EXPORT_FUNC (grub_efi_set_virtual_address_map) (grub_efi_uintn_t memo grub_efi_uintn_t descriptor_size, grub_efi_uint32_t descriptor_version, grub_efi_memory_descriptor_t *virtual_map); -void *EXPORT_FUNC (grub_efi_get_variable) (const char *variable, - const grub_efi_guid_t *guid, - grub_size_t *datasize_out); +grub_efi_status_t EXPORT_FUNC (grub_efi_get_variable) (const char *variable, + const grub_efi_guid_t *guid, + grub_size_t *datasize_out, + void **data_out); grub_err_t EXPORT_FUNC (grub_efi_set_variable) (const char *var, const grub_efi_guid_t *guid, -- 2.26.2
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