diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/commands/efi | |
parent | Initial commit. (diff) | |
download | grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | grub-core/commands/efi/efifwsetup.c | 90 | ||||
-rw-r--r-- | grub-core/commands/efi/fixvideo.c | 114 | ||||
-rw-r--r-- | grub-core/commands/efi/loadbios.c | 222 | ||||
-rw-r--r-- | grub-core/commands/efi/lsefi.c | 155 | ||||
-rw-r--r-- | grub-core/commands/efi/lsefimmap.c | 160 | ||||
-rw-r--r-- | grub-core/commands/efi/lsefisystab.c | 125 | ||||
-rw-r--r-- | grub-core/commands/efi/lssal.c | 169 | ||||
-rw-r--r-- | grub-core/commands/efi/smbios.c | 61 | ||||
-rw-r--r-- | grub-core/commands/efi/tpm.c | 241 |
9 files changed, 1337 insertions, 0 deletions
diff --git a/grub-core/commands/efi/efifwsetup.c b/grub-core/commands/efi/efifwsetup.c new file mode 100644 index 0000000..eaca032 --- /dev/null +++ b/grub-core/commands/efi/efifwsetup.c @@ -0,0 +1,90 @@ +/* fwsetup.c - Reboot into firmware setup menu. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2012 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> +#include <grub/command.h> +#include <grub/i18n.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_err_t +grub_cmd_fwsetup (grub_command_t cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + grub_efi_uint64_t *old_os_indications; + grub_efi_uint64_t os_indications = GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI; + grub_err_t status; + grub_size_t oi_size; + grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID; + + 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; + + status = grub_efi_set_variable ("OsIndications", &global, &os_indications, + sizeof (os_indications)); + if (status != GRUB_ERR_NONE) + return status; + + grub_reboot (); + + return GRUB_ERR_BUG; +} + +static grub_command_t cmd = NULL; + +static grub_efi_boolean_t +efifwsetup_is_supported (void) +{ + grub_efi_uint64_t *os_indications_supported = NULL; + grub_size_t oi_size = 0; + grub_efi_guid_t global = GRUB_EFI_GLOBAL_VARIABLE_GUID; + + grub_efi_get_variable ("OsIndicationsSupported", &global, &oi_size, + (void **) &os_indications_supported); + + if (!os_indications_supported) + return 0; + + if (*os_indications_supported & GRUB_EFI_OS_INDICATIONS_BOOT_TO_FW_UI) + return 1; + + return 0; +} + +GRUB_MOD_INIT (efifwsetup) +{ + if (efifwsetup_is_supported ()) + cmd = grub_register_command ("fwsetup", grub_cmd_fwsetup, NULL, + N_("Reboot into firmware setup menu.")); + +} + +GRUB_MOD_FINI (efifwsetup) +{ + if (cmd) + grub_unregister_command (cmd); +} diff --git a/grub-core/commands/efi/fixvideo.c b/grub-core/commands/efi/fixvideo.c new file mode 100644 index 0000000..d9d54a2 --- /dev/null +++ b/grub-core/commands/efi/fixvideo.c @@ -0,0 +1,114 @@ +/* fixvideo.c - fix video problem in efi */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/file.h> +#include <grub/pci.h> +#include <grub/command.h> +#include <grub/i18n.h> +#include <grub/mm.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static struct grub_video_patch +{ + const char *name; + grub_uint32_t pci_id; + grub_uint32_t mmio_bar; + grub_uint32_t mmio_reg; + grub_uint32_t mmio_old; +} video_patches[] = + { + {"Intel 945GM", 0x27a28086, 0, 0x71184, 0x1000000}, /* DSPBBASE */ + {"Intel 965GM", 0x2a028086, 0, 0x7119C, 0x1000000}, /* DSPBSURF */ + {0, 0, 0, 0, 0} + }; + +static int +scan_card (grub_pci_device_t dev, grub_pci_id_t pciid, + void *data __attribute__ ((unused))) +{ + grub_pci_address_t addr; + + addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS); + if (grub_pci_read_byte (addr + 3) == 0x3) + { + struct grub_video_patch *p = video_patches; + + while (p->name) + { + if (p->pci_id == pciid) + { + grub_addr_t base; + + grub_dprintf ("fixvideo", "Found graphic card: %s\n", p->name); + addr += 8 + p->mmio_bar * 4; + base = grub_pci_read (addr); + if ((! base) || (base & GRUB_PCI_ADDR_SPACE_IO) || + (base & GRUB_PCI_ADDR_MEM_PREFETCH)) + grub_dprintf ("fixvideo", "Invalid MMIO bar %d\n", p->mmio_bar); + else + { + base &= GRUB_PCI_ADDR_MEM_MASK; + base += p->mmio_reg; + + if (*((volatile grub_uint32_t *) base) != p->mmio_old) + grub_dprintf ("fixvideo", "Old value doesn't match\n"); + else + { + *((volatile grub_uint32_t *) base) = 0; + if (*((volatile grub_uint32_t *) base)) + grub_dprintf ("fixvideo", "Setting MMIO fails\n"); + } + } + + return 1; + } + p++; + } + + grub_dprintf ("fixvideo", "Unknown graphic card: %x\n", pciid); + } + + return 0; +} + +static grub_err_t +grub_cmd_fixvideo (grub_command_t cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char *argv[] __attribute__ ((unused))) +{ + grub_pci_iterate (scan_card, NULL); + return 0; +} + +static grub_command_t cmd_fixvideo; + +GRUB_MOD_INIT(fixvideo) +{ + cmd_fixvideo = grub_register_command ("fix_video", grub_cmd_fixvideo, + 0, N_("Fix video problem.")); + +} + +GRUB_MOD_FINI(fixvideo) +{ + grub_unregister_command (cmd_fixvideo); +} diff --git a/grub-core/commands/efi/loadbios.c b/grub-core/commands/efi/loadbios.c new file mode 100644 index 0000000..5c7725f --- /dev/null +++ b/grub-core/commands/efi/loadbios.c @@ -0,0 +1,222 @@ +/* loadbios.c - command to load a bios dump */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/file.h> +#include <grub/efi/efi.h> +#include <grub/pci.h> +#include <grub/command.h> +#include <grub/i18n.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_efi_guid_t acpi_guid = GRUB_EFI_ACPI_TABLE_GUID; +static grub_efi_guid_t acpi2_guid = GRUB_EFI_ACPI_20_TABLE_GUID; +static grub_efi_guid_t smbios_guid = GRUB_EFI_SMBIOS_TABLE_GUID; + +#define EBDA_SEG_ADDR 0x40e +#define LOW_MEM_ADDR 0x413 +#define FAKE_EBDA_SEG 0x9fc0 + +#define BLANK_MEM 0xffffffff +#define VBIOS_ADDR 0xc0000 +#define SBIOS_ADDR 0xf0000 + +static int +enable_rom_area (void) +{ + grub_pci_address_t addr; + grub_uint32_t *rom_ptr; + grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0}; + + rom_ptr = (grub_uint32_t *) VBIOS_ADDR; + if (*rom_ptr != BLANK_MEM) + { + grub_puts_ (N_("ROM image is present.")); + return 0; + } + + /* FIXME: should be macroified. */ + addr = grub_pci_make_address (dev, 144); + grub_pci_write_byte (addr++, 0x30); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr++, 0x33); + grub_pci_write_byte (addr, 0); + + *rom_ptr = 0; + if (*rom_ptr != 0) + { + grub_puts_ (N_("Can\'t enable ROM area.")); + return 0; + } + + return 1; +} + +static void +lock_rom_area (void) +{ + grub_pci_address_t addr; + grub_pci_device_t dev = { .bus = 0, .device = 0, .function = 0}; + + /* FIXME: should be macroified. */ + addr = grub_pci_make_address (dev, 144); + grub_pci_write_byte (addr++, 0x10); + grub_pci_write_byte (addr++, 0x11); + grub_pci_write_byte (addr++, 0x11); + grub_pci_write_byte (addr++, 0x11); + grub_pci_write_byte (addr, 0x11); +} + +static void +fake_bios_data (int use_rom) +{ + unsigned i; + void *acpi, *smbios; + grub_uint16_t *ebda_seg_ptr, *low_mem_ptr; + + ebda_seg_ptr = (grub_uint16_t *) EBDA_SEG_ADDR; + low_mem_ptr = (grub_uint16_t *) LOW_MEM_ADDR; + if ((*ebda_seg_ptr) || (*low_mem_ptr)) + return; + + acpi = 0; + smbios = 0; + for (i = 0; i < grub_efi_system_table->num_table_entries; i++) + { + grub_efi_packed_guid_t *guid = + &grub_efi_system_table->configuration_table[i].vendor_guid; + + if (! grub_memcmp (guid, &acpi2_guid, sizeof (grub_efi_guid_t))) + { + acpi = grub_efi_system_table->configuration_table[i].vendor_table; + grub_dprintf ("efi", "ACPI2: %p\n", acpi); + } + else if (! grub_memcmp (guid, &acpi_guid, sizeof (grub_efi_guid_t))) + { + void *t; + + t = grub_efi_system_table->configuration_table[i].vendor_table; + if (! acpi) + acpi = t; + grub_dprintf ("efi", "ACPI: %p\n", t); + } + else if (! grub_memcmp (guid, &smbios_guid, sizeof (grub_efi_guid_t))) + { + smbios = grub_efi_system_table->configuration_table[i].vendor_table; + grub_dprintf ("efi", "SMBIOS: %p\n", smbios); + } + } + + *ebda_seg_ptr = FAKE_EBDA_SEG; + *low_mem_ptr = (FAKE_EBDA_SEG >> 6); + + *((grub_uint16_t *) (FAKE_EBDA_SEG << 4)) = 640 - *low_mem_ptr; + + if (acpi) + grub_memcpy ((char *) ((FAKE_EBDA_SEG << 4) + 16), acpi, 1024 - 16); + + if ((use_rom) && (smbios)) + grub_memcpy ((char *) SBIOS_ADDR, (char *) smbios + 16, 16); +} + +static grub_err_t +grub_cmd_fakebios (struct grub_command *cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char *argv[] __attribute__ ((unused))) +{ + if (enable_rom_area ()) + { + fake_bios_data (1); + lock_rom_area (); + } + else + fake_bios_data (0); + + return 0; +} + +static grub_err_t +grub_cmd_loadbios (grub_command_t cmd __attribute__ ((unused)), + int argc, char *argv[]) +{ + grub_file_t file; + int size; + + if (argc == 0) + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); + + if (argc > 1) + { + file = grub_file_open (argv[1], GRUB_FILE_TYPE_VBE_DUMP); + if (! file) + return grub_errno; + + if (file->size != 4) + grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid int10 dump size"); + else + grub_file_read (file, (void *) 0x40, 4); + + grub_file_close (file); + if (grub_errno) + return grub_errno; + } + + file = grub_file_open (argv[0], GRUB_FILE_TYPE_VBE_DUMP); + if (! file) + return grub_errno; + + size = file->size; + if ((size < 0x10000) || (size > 0x40000)) + grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid bios dump size"); + else if (enable_rom_area ()) + { + grub_file_read (file, (void *) VBIOS_ADDR, size); + fake_bios_data (size <= 0x40000); + lock_rom_area (); + } + + grub_file_close (file); + return grub_errno; +} + +static grub_command_t cmd_fakebios, cmd_loadbios; + +GRUB_MOD_INIT(loadbios) +{ + cmd_fakebios = grub_register_command_lockdown ("fakebios", grub_cmd_fakebios, + 0, N_("Create BIOS-like structures for" + " backward compatibility with" + " existing OS.")); + + cmd_loadbios = grub_register_command_lockdown ("loadbios", grub_cmd_loadbios, + N_("BIOS_DUMP [INT10_DUMP]"), + N_("Load BIOS dump.")); +} + +GRUB_MOD_FINI(loadbios) +{ + grub_unregister_command (cmd_fakebios); + grub_unregister_command (cmd_loadbios); +} diff --git a/grub-core/commands/efi/lsefi.c b/grub-core/commands/efi/lsefi.c new file mode 100644 index 0000000..d1ce99a --- /dev/null +++ b/grub-core/commands/efi/lsefi.c @@ -0,0 +1,155 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2012 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/efi/api.h> +#include <grub/efi/edid.h> +#include <grub/efi/pci.h> +#include <grub/efi/efi.h> +#include <grub/efi/uga_draw.h> +#include <grub/efi/graphics_output.h> +#include <grub/efi/console_control.h> +#include <grub/command.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +struct known_protocol +{ + grub_efi_guid_t guid; + const char *name; +} known_protocols[] = + { + { GRUB_EFI_DISK_IO_GUID, "disk" }, + { GRUB_EFI_BLOCK_IO_GUID, "block" }, + { GRUB_EFI_SERIAL_IO_GUID, "serial" }, + { GRUB_EFI_SIMPLE_NETWORK_GUID, "network" }, + { GRUB_EFI_PXE_GUID, "pxe" }, + { GRUB_EFI_DEVICE_PATH_GUID, "device path" }, + { GRUB_EFI_PCI_IO_GUID, "PCI" }, + { GRUB_EFI_PCI_ROOT_IO_GUID, "PCI root" }, + { GRUB_EFI_EDID_ACTIVE_GUID, "active EDID" }, + { GRUB_EFI_EDID_DISCOVERED_GUID, "discovered EDID" }, + { GRUB_EFI_EDID_OVERRIDE_GUID, "override EDID" }, + { GRUB_EFI_GOP_GUID, "GOP" }, + { GRUB_EFI_UGA_DRAW_GUID, "UGA draw" }, + { GRUB_EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID, "simple text output" }, + { GRUB_EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID, "simple text input" }, + { GRUB_EFI_SIMPLE_POINTER_PROTOCOL_GUID, "simple pointer" }, + { GRUB_EFI_CONSOLE_CONTROL_GUID, "console control" }, + { GRUB_EFI_ABSOLUTE_POINTER_PROTOCOL_GUID, "absolute pointer" }, + { GRUB_EFI_DRIVER_BINDING_PROTOCOL_GUID, "EFI driver binding" }, + { GRUB_EFI_LOAD_FILE_PROTOCOL_GUID, "load file" }, + { GRUB_EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID, "simple FS" }, + { GRUB_EFI_TAPE_IO_PROTOCOL_GUID, "tape I/O" }, + { GRUB_EFI_UNICODE_COLLATION_PROTOCOL_GUID, "unicode collation" }, + { GRUB_EFI_SCSI_IO_PROTOCOL_GUID, "SCSI I/O" }, + { GRUB_EFI_USB2_HC_PROTOCOL_GUID, "USB host" }, + { GRUB_EFI_DEBUG_SUPPORT_PROTOCOL_GUID, "debug support" }, + { GRUB_EFI_DEBUGPORT_PROTOCOL_GUID, "debug port" }, + { GRUB_EFI_DECOMPRESS_PROTOCOL_GUID, "decompress" }, + { GRUB_EFI_LOADED_IMAGE_PROTOCOL_GUID, "loaded image" }, + { GRUB_EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID, "device path to text" }, + { GRUB_EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID, "device path utilities" }, + { GRUB_EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL_GUID, "device path from text" }, + { GRUB_EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID, "HII config routing" }, + { GRUB_EFI_HII_DATABASE_PROTOCOL_GUID, "HII database" }, + { GRUB_EFI_HII_STRING_PROTOCOL_GUID, "HII string" }, + { GRUB_EFI_HII_IMAGE_PROTOCOL_GUID, "HII image" }, + { GRUB_EFI_HII_FONT_PROTOCOL_GUID, "HII font" }, + { GRUB_EFI_COMPONENT_NAME2_PROTOCOL_GUID, "component name 2" }, + { GRUB_EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID, + "HII configuration access" }, + { GRUB_EFI_USB_IO_PROTOCOL_GUID, "USB I/O" }, + }; + +static grub_err_t +grub_cmd_lsefi (grub_command_t cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + grub_efi_handle_t *handles; + grub_efi_uintn_t num_handles; + unsigned i, j, k; + + handles = grub_efi_locate_handle (GRUB_EFI_ALL_HANDLES, + NULL, NULL, &num_handles); + + for (i = 0; i < num_handles; i++) + { + grub_efi_handle_t handle = handles[i]; + grub_efi_status_t status; + grub_efi_uintn_t num_protocols; + grub_efi_packed_guid_t **protocols; + grub_efi_device_path_t *dp; + + grub_printf ("Handle %p\n", handle); + + dp = grub_efi_get_device_path (handle); + if (dp) + { + grub_printf (" "); + grub_efi_print_device_path (dp); + } + + status = efi_call_3 (grub_efi_system_table->boot_services->protocols_per_handle, + handle, &protocols, &num_protocols); + if (status != GRUB_EFI_SUCCESS) { + grub_printf ("Unable to retrieve protocols\n"); + continue; + } + for (j = 0; j < num_protocols; j++) + { + for (k = 0; k < ARRAY_SIZE (known_protocols); k++) + if (grub_memcmp (protocols[j], &known_protocols[k].guid, + sizeof (known_protocols[k].guid)) == 0) + break; + if (k < ARRAY_SIZE (known_protocols)) + grub_printf (" %s\n", known_protocols[k].name); + else + grub_printf (" %08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x\n", + protocols[j]->data1, + protocols[j]->data2, + protocols[j]->data3, + (unsigned) protocols[j]->data4[0], + (unsigned) protocols[j]->data4[1], + (unsigned) protocols[j]->data4[2], + (unsigned) protocols[j]->data4[3], + (unsigned) protocols[j]->data4[4], + (unsigned) protocols[j]->data4[5], + (unsigned) protocols[j]->data4[6], + (unsigned) protocols[j]->data4[7]); + } + + } + + return 0; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(lsefi) +{ + cmd = grub_register_command ("lsefi", grub_cmd_lsefi, + NULL, "Display EFI handles."); +} + +GRUB_MOD_FINI(lsefi) +{ + grub_unregister_command (cmd); +} diff --git a/grub-core/commands/efi/lsefimmap.c b/grub-core/commands/efi/lsefimmap.c new file mode 100644 index 0000000..c85ff7f --- /dev/null +++ b/grub-core/commands/efi/lsefimmap.c @@ -0,0 +1,160 @@ +/* lsefimemmap.c - Display memory map. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> +#include <grub/command.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +#define ADD_MEMORY_DESCRIPTOR(desc, size) \ + ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size))) + +static grub_err_t +grub_cmd_lsefimmap (grub_command_t cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + grub_efi_uintn_t map_size; + grub_efi_memory_descriptor_t *memory_map; + grub_efi_memory_descriptor_t *memory_map_end; + grub_efi_memory_descriptor_t *desc; + grub_efi_uintn_t desc_size; + + map_size = 0; + if (grub_efi_get_memory_map (&map_size, NULL, NULL, &desc_size, 0) < 0) + return 0; + + memory_map = grub_malloc (map_size); + if (memory_map == NULL) + return grub_errno; + if (grub_efi_get_memory_map (&map_size, memory_map, NULL, &desc_size, 0) <= 0) + goto fail; + + grub_printf + ("Type Physical start - end #Pages " + " Size Attributes\n"); + memory_map_end = ADD_MEMORY_DESCRIPTOR (memory_map, map_size); + for (desc = memory_map; + desc < memory_map_end; + desc = ADD_MEMORY_DESCRIPTOR (desc, desc_size)) + { + grub_efi_uint64_t size; + grub_efi_uint64_t attr; + static const char types_str[][9] = + { + "reserved", + "ldr-code", + "ldr-data", + "BS-code ", + "BS-data ", + "RT-code ", + "RT-data ", + "conv-mem", + "unusable", + "ACPI-rec", + "ACPI-nvs", + "MMIO ", + "IO-ports", + "PAL-code", + "persist ", + }; + if (desc->type < ARRAY_SIZE (types_str)) + grub_printf ("%s ", types_str[desc->type]); + else + grub_printf ("Unk %02x ", desc->type); + + grub_printf (" %016" PRIxGRUB_UINT64_T "-%016" PRIxGRUB_UINT64_T + " %08" PRIxGRUB_UINT64_T, + desc->physical_start, + desc->physical_start + (desc->num_pages << 12) - 1, + desc->num_pages); + + size = desc->num_pages << 12; /* 4 KiB page size */ + /* + * Since size is a multiple of 4 KiB, no need to handle units + * of just Bytes (which would use a mask of 0x3ff). + * + * 14 characters would support the largest possible number of 4 KiB + * pages that are not a multiple of larger units (e.g., MiB): + * 17592186044415 (0xffffff_fffff000), but that uses a lot of + * whitespace for a rare case. 6 characters usually suffices; + * columns will be off if not, but this is preferable to rounding. + */ + if (size & 0xfffff) + grub_printf (" %6" PRIuGRUB_UINT64_T "KiB", size >> 10); + else if (size & 0x3fffffff) + grub_printf (" %6" PRIuGRUB_UINT64_T "MiB", size >> 20); + else if (size & 0xffffffffff) + grub_printf (" %6" PRIuGRUB_UINT64_T "GiB", size >> 30); + else if (size & 0x3ffffffffffff) + grub_printf (" %6" PRIuGRUB_UINT64_T "TiB", size >> 40); + else if (size & 0xfffffffffffffff) + grub_printf (" %6" PRIuGRUB_UINT64_T "PiB", size >> 50); + else + grub_printf (" %6" PRIuGRUB_UINT64_T "EiB", size >> 60); + + attr = desc->attribute; + if (attr & GRUB_EFI_MEMORY_RUNTIME) + grub_printf (" RT"); + if (attr & GRUB_EFI_MEMORY_UC) + grub_printf (" UC"); + if (attr & GRUB_EFI_MEMORY_WC) + grub_printf (" WC"); + if (attr & GRUB_EFI_MEMORY_WT) + grub_printf (" WT"); + if (attr & GRUB_EFI_MEMORY_WB) + grub_printf (" WB"); + if (attr & GRUB_EFI_MEMORY_UCE) + grub_printf (" UCE"); + if (attr & GRUB_EFI_MEMORY_WP) + grub_printf (" WP"); + if (attr & GRUB_EFI_MEMORY_RP) + grub_printf (" RP"); + if (attr & GRUB_EFI_MEMORY_XP) + grub_printf (" XP"); + if (attr & GRUB_EFI_MEMORY_NV) + grub_printf (" NV"); + if (attr & GRUB_EFI_MEMORY_MORE_RELIABLE) + grub_printf (" MR"); + if (attr & GRUB_EFI_MEMORY_RO) + grub_printf (" RO"); + + grub_printf ("\n"); + } + + fail: + grub_free (memory_map); + return 0; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(lsefimmap) +{ + cmd = grub_register_command ("lsefimmap", grub_cmd_lsefimmap, + "", "Display EFI memory map."); +} + +GRUB_MOD_FINI(lsefimmap) +{ + grub_unregister_command (cmd); +} diff --git a/grub-core/commands/efi/lsefisystab.c b/grub-core/commands/efi/lsefisystab.c new file mode 100644 index 0000000..456198e --- /dev/null +++ b/grub-core/commands/efi/lsefisystab.c @@ -0,0 +1,125 @@ +/* lsefisystab.c - Display EFI systab. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/normal.h> +#include <grub/charset.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +struct guid_mapping +{ + grub_efi_guid_t guid; + const char *name; +}; + +static const struct guid_mapping guid_mappings[] = + { + { GRUB_EFI_ACPI_20_TABLE_GUID, "ACPI-2.0"}, + { GRUB_EFI_ACPI_TABLE_GUID, "ACPI-1.0"}, + { GRUB_EFI_CRC32_GUIDED_SECTION_EXTRACTION_GUID, + "CRC32 GUIDED SECTION EXTRACTION"}, + { GRUB_EFI_DEBUG_IMAGE_INFO_TABLE_GUID, "DEBUG IMAGE INFO"}, + { GRUB_EFI_DEVICE_TREE_GUID, "DEVICE TREE"}, + { GRUB_EFI_DXE_SERVICES_TABLE_GUID, "DXE SERVICES"}, + { GRUB_EFI_HCDP_TABLE_GUID, "HCDP"}, + { GRUB_EFI_HOB_LIST_GUID, "HOB LIST"}, + { GRUB_EFI_LZMA_CUSTOM_DECOMPRESS_GUID, "LZMA CUSTOM DECOMPRESS"}, + { GRUB_EFI_MEMORY_TYPE_INFORMATION_GUID, "MEMORY TYPE INFO"}, + { GRUB_EFI_MPS_TABLE_GUID, "MPS"}, + { GRUB_EFI_RT_PROPERTIES_TABLE_GUID, "RT PROPERTIES"}, + { GRUB_EFI_SAL_TABLE_GUID, "SAL"}, + { GRUB_EFI_SMBIOS_TABLE_GUID, "SMBIOS"}, + { GRUB_EFI_SMBIOS3_TABLE_GUID, "SMBIOS3"}, + { GRUB_EFI_SYSTEM_RESOURCE_TABLE_GUID, "SYSTEM RESOURCE TABLE"}, + { GRUB_EFI_TIANO_CUSTOM_DECOMPRESS_GUID, "TIANO CUSTOM DECOMPRESS"}, + { GRUB_EFI_TSC_FREQUENCY_GUID, "TSC FREQUENCY"}, + }; + +static grub_err_t +grub_cmd_lsefisystab (struct grub_command *cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + const grub_efi_system_table_t *st = grub_efi_system_table; + grub_efi_configuration_table_t *t; + unsigned int i; + + grub_printf ("Address: %p\n", st); + grub_printf ("Signature: %016" PRIxGRUB_UINT64_T " revision: %08x\n", + st->hdr.signature, st->hdr.revision); + { + char *vendor; + grub_uint16_t *vendor_utf16; + grub_printf ("Vendor: "); + + for (vendor_utf16 = st->firmware_vendor; *vendor_utf16; vendor_utf16++); + /* Allocate extra 3 bytes to simplify math. */ + vendor = grub_calloc (4, vendor_utf16 - st->firmware_vendor + 1); + if (!vendor) + return grub_errno; + *grub_utf16_to_utf8 ((grub_uint8_t *) vendor, st->firmware_vendor, + vendor_utf16 - st->firmware_vendor) = 0; + grub_printf ("%s", vendor); + grub_free (vendor); + } + + grub_printf (", Version=%x\n", st->firmware_revision); + + grub_printf ("%lld tables:\n", (long long) st->num_table_entries); + t = st->configuration_table; + for (i = 0; i < st->num_table_entries; i++) + { + unsigned int j; + + grub_printf ("%p ", t->vendor_table); + + grub_printf ("%08x-%04x-%04x-", + t->vendor_guid.data1, t->vendor_guid.data2, + t->vendor_guid.data3); + for (j = 0; j < 8; j++) + grub_printf ("%02x", t->vendor_guid.data4[j]); + + for (j = 0; j < ARRAY_SIZE (guid_mappings); j++) + if (grub_memcmp (&guid_mappings[j].guid, &t->vendor_guid, + sizeof (grub_efi_guid_t)) == 0) + grub_printf (" %s", guid_mappings[j].name); + + grub_printf ("\n"); + t++; + } + return GRUB_ERR_NONE; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(lsefisystab) +{ + cmd = grub_register_command ("lsefisystab", grub_cmd_lsefisystab, + "", "Display EFI system tables."); +} + +GRUB_MOD_FINI(lsefisystab) +{ + grub_unregister_command (cmd); +} diff --git a/grub-core/commands/efi/lssal.c b/grub-core/commands/efi/lssal.c new file mode 100644 index 0000000..5084ddd --- /dev/null +++ b/grub-core/commands/efi/lssal.c @@ -0,0 +1,169 @@ +/* lssal.c - Display EFI SAL systab. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2008 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ +#include <grub/types.h> +#include <grub/mm.h> +#include <grub/misc.h> +#include <grub/normal.h> +#include <grub/charset.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> +#include <grub/dl.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static void +disp_sal (void *table) +{ + struct grub_efi_sal_system_table *t = table; + void *desc; + grub_uint32_t len, l, i; + + grub_printf ("SAL rev: %02x, signature: %x, len:%x\n", + t->sal_rev, t->signature, t->total_table_len); + grub_printf ("nbr entry: %d, chksum: %02x, SAL version A: %02x B: %02x\n", + t->entry_count, t->checksum, + t->sal_a_version, t->sal_b_version); + grub_printf ("OEM-ID: %-32s\n", t->oem_id); + grub_printf ("Product-ID: %-32s\n", t->product_id); + + desc = t->entries; + len = t->total_table_len - sizeof (struct grub_efi_sal_system_table); + if (t->total_table_len <= sizeof (struct grub_efi_sal_system_table)) + return; + for (i = 0; i < t->entry_count; i++) + { + switch (*(grub_uint8_t *) desc) + { + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_ENTRYPOINT_DESCRIPTOR: + { + struct grub_efi_sal_system_table_entrypoint_descriptor *c = desc; + l = sizeof (*c); + grub_printf (" Entry point: PAL=%016" PRIxGRUB_UINT64_T + " SAL=%016" PRIxGRUB_UINT64_T " GP=%016" + PRIxGRUB_UINT64_T "\n", + c->pal_proc_addr, c->sal_proc_addr, + c->global_data_ptr); + } + break; + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_MEMORY_DESCRIPTOR: + { + struct grub_efi_sal_system_table_memory_descriptor *c = desc; + l = sizeof (*c); + grub_printf (" Memory descriptor entry addr=%016" PRIxGRUB_UINT64_T + " len=%" PRIuGRUB_UINT64_T "KB\n", + c->addr, c->len * 4); + grub_printf (" sal_used=%d attr=%x AR=%x attr_mask=%x " + "type=%x usage=%x\n", + c->sal_used, c->attr, c->ar, c->attr_mask, c->mem_type, + c->usage); + } + break; + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PLATFORM_FEATURES: + { + struct grub_efi_sal_system_table_platform_features *c = desc; + l = sizeof (*c); + grub_printf (" Platform features: %02x", c->flags); + if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_BUSLOCK) + grub_printf (" BusLock"); + if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IRQREDIRECT) + grub_printf (" IrqRedirect"); + if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IPIREDIRECT) + + grub_printf (" IPIRedirect"); + if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_ITCDRIFT) + + grub_printf (" ITCDrift"); + grub_printf ("\n"); + } + break; + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_TRANSLATION_REGISTER_DESCRIPTOR: + { + struct grub_efi_sal_system_table_translation_register_descriptor *c + = desc; + l = sizeof (*c); + grub_printf (" TR type=%d num=%d va=%016" PRIxGRUB_UINT64_T + " pte=%016" PRIxGRUB_UINT64_T "\n", + c->register_type, c->register_number, + c->addr, c->page_size); + } + break; + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PURGE_TRANSLATION_COHERENCE: + { + struct grub_efi_sal_system_table_purge_translation_coherence *c + = desc; + l = sizeof (*c); + grub_printf (" PTC coherence nbr=%d addr=%016" PRIxGRUB_UINT64_T "\n", + c->ndomains, c->coherence); + } + break; + case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_AP_WAKEUP: + { + struct grub_efi_sal_system_table_ap_wakeup *c = desc; + l = sizeof (*c); + grub_printf (" AP wake-up: mec=%d vect=%" PRIxGRUB_UINT64_T "\n", + c->mechanism, c->vector); + } + break; + default: + grub_printf (" unknown entry 0x%x\n", *(grub_uint8_t *)desc); + return; + } + desc = (grub_uint8_t *)desc + l; + if (len <= l) + return; + len -= l; + } +} + +static grub_err_t +grub_cmd_lssal (struct grub_command *cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char **args __attribute__ ((unused))) +{ + const grub_efi_system_table_t *st = grub_efi_system_table; + grub_efi_configuration_table_t *t = st->configuration_table; + unsigned int i; + grub_efi_packed_guid_t guid = GRUB_EFI_SAL_TABLE_GUID; + + for (i = 0; i < st->num_table_entries; i++) + { + if (grub_memcmp (&guid, &t->vendor_guid, + sizeof (grub_efi_packed_guid_t)) == 0) + { + disp_sal (t->vendor_table); + return GRUB_ERR_NONE; + } + t++; + } + grub_printf ("SAL not found\n"); + return GRUB_ERR_NONE; +} + +static grub_command_t cmd; + +GRUB_MOD_INIT(lssal) +{ + cmd = grub_register_command ("lssal", grub_cmd_lssal, "", + "Display SAL system table."); +} + +GRUB_MOD_FINI(lssal) +{ + grub_unregister_command (cmd); +} diff --git a/grub-core/commands/efi/smbios.c b/grub-core/commands/efi/smbios.c new file mode 100644 index 0000000..75202d5 --- /dev/null +++ b/grub-core/commands/efi/smbios.c @@ -0,0 +1,61 @@ +/* smbios.c - get smbios tables. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2019 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/smbios.h> +#include <grub/misc.h> +#include <grub/efi/efi.h> +#include <grub/efi/api.h> + +struct grub_smbios_eps * +grub_machine_smbios_get_eps (void) +{ + unsigned i; + static grub_efi_packed_guid_t smbios_guid = GRUB_EFI_SMBIOS_TABLE_GUID; + + for (i = 0; i < grub_efi_system_table->num_table_entries; i++) + { + grub_efi_packed_guid_t *guid = + &grub_efi_system_table->configuration_table[i].vendor_guid; + + if (! grub_memcmp (guid, &smbios_guid, sizeof (grub_efi_packed_guid_t))) + return (struct grub_smbios_eps *) + grub_efi_system_table->configuration_table[i].vendor_table; + } + + return 0; +} + +struct grub_smbios_eps3 * +grub_machine_smbios_get_eps3 (void) +{ + unsigned i; + static grub_efi_packed_guid_t smbios3_guid = GRUB_EFI_SMBIOS3_TABLE_GUID; + + for (i = 0; i < grub_efi_system_table->num_table_entries; i++) + { + grub_efi_packed_guid_t *guid = + &grub_efi_system_table->configuration_table[i].vendor_guid; + + if (! grub_memcmp (guid, &smbios3_guid, sizeof (grub_efi_packed_guid_t))) + return (struct grub_smbios_eps3 *) + grub_efi_system_table->configuration_table[i].vendor_table; + } + + return 0; +} diff --git a/grub-core/commands/efi/tpm.c b/grub-core/commands/efi/tpm.c new file mode 100644 index 0000000..a97d853 --- /dev/null +++ b/grub-core/commands/efi/tpm.c @@ -0,0 +1,241 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2018 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + * + * EFI TPM support code. + */ + +#include <grub/err.h> +#include <grub/i18n.h> +#include <grub/efi/api.h> +#include <grub/efi/efi.h> +#include <grub/efi/tpm.h> +#include <grub/mm.h> +#include <grub/tpm.h> +#include <grub/term.h> + +typedef TCG_PCR_EVENT grub_tpm_event_t; + +static grub_efi_guid_t tpm_guid = EFI_TPM_GUID; +static grub_efi_guid_t tpm2_guid = EFI_TPM2_GUID; + +static grub_efi_handle_t *grub_tpm_handle; +static grub_uint8_t grub_tpm_version; + +static grub_int8_t tpm1_present = -1; +static grub_int8_t tpm2_present = -1; + +static grub_efi_boolean_t +grub_tpm1_present (grub_efi_tpm_protocol_t *tpm) +{ + grub_efi_status_t status; + TCG_EFI_BOOT_SERVICE_CAPABILITY caps; + grub_uint32_t flags; + grub_efi_physical_address_t eventlog, lastevent; + + if (tpm1_present != -1) + return (grub_efi_boolean_t) tpm1_present; + + caps.Size = (grub_uint8_t) sizeof (caps); + + status = efi_call_5 (tpm->status_check, tpm, &caps, &flags, &eventlog, + &lastevent); + + if (status != GRUB_EFI_SUCCESS || caps.TPMDeactivatedFlag + || !caps.TPMPresentFlag) + tpm1_present = 0; + else + tpm1_present = 1; + + grub_dprintf ("tpm", "tpm1%s present\n", tpm1_present ? "" : " NOT"); + + return (grub_efi_boolean_t) tpm1_present; +} + +static grub_efi_boolean_t +grub_tpm2_present (grub_efi_tpm2_protocol_t *tpm) +{ + grub_efi_status_t status; + EFI_TCG2_BOOT_SERVICE_CAPABILITY caps; + + caps.Size = (grub_uint8_t) sizeof (caps); + + if (tpm2_present != -1) + return (grub_efi_boolean_t) tpm2_present; + + status = efi_call_2 (tpm->get_capability, tpm, &caps); + + if (status != GRUB_EFI_SUCCESS || !caps.TPMPresentFlag) + tpm2_present = 0; + else + tpm2_present = 1; + + grub_dprintf ("tpm", "tpm2%s present\n", tpm2_present ? "" : " NOT"); + + return (grub_efi_boolean_t) tpm2_present; +} + +static grub_efi_boolean_t +grub_tpm_handle_find (grub_efi_handle_t *tpm_handle, + grub_efi_uint8_t *protocol_version) +{ + grub_efi_handle_t *handles; + grub_efi_uintn_t num_handles; + + if (grub_tpm_handle != NULL) + { + *tpm_handle = grub_tpm_handle; + *protocol_version = grub_tpm_version; + return 1; + } + + handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL, &tpm_guid, NULL, + &num_handles); + if (handles && num_handles > 0) + { + grub_tpm_handle = handles[0]; + *tpm_handle = handles[0]; + grub_tpm_version = 1; + *protocol_version = 1; + grub_dprintf ("tpm", "TPM handle Found, version: 1\n"); + return 1; + } + + handles = grub_efi_locate_handle (GRUB_EFI_BY_PROTOCOL, &tpm2_guid, NULL, + &num_handles); + if (handles && num_handles > 0) + { + grub_tpm_handle = handles[0]; + *tpm_handle = handles[0]; + grub_tpm_version = 2; + *protocol_version = 2; + grub_dprintf ("tpm", "TPM handle Found, version: 2\n"); + return 1; + } + + return 0; +} + +static grub_err_t +grub_efi_log_event_status (grub_efi_status_t status) +{ + switch (status) + { + case GRUB_EFI_SUCCESS: + return 0; + case GRUB_EFI_DEVICE_ERROR: + return grub_error (GRUB_ERR_IO, N_("Command failed")); + case GRUB_EFI_INVALID_PARAMETER: + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Invalid parameter")); + case GRUB_EFI_BUFFER_TOO_SMALL: + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("Output buffer too small")); + case GRUB_EFI_NOT_FOUND: + return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("TPM unavailable")); + default: + return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("Unknown TPM error")); + } +} + +static grub_err_t +grub_tpm1_log_event (grub_efi_handle_t tpm_handle, unsigned char *buf, + grub_size_t size, grub_uint8_t pcr, + const char *description) +{ + grub_tpm_event_t *event; + grub_efi_status_t status; + grub_efi_tpm_protocol_t *tpm; + grub_efi_physical_address_t lastevent; + grub_uint32_t algorithm; + grub_uint32_t eventnum = 0; + + tpm = grub_efi_open_protocol (tpm_handle, &tpm_guid, + GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL); + + if (!grub_tpm1_present (tpm)) + return 0; + + event = grub_zalloc (sizeof (*event) + grub_strlen (description) + 1); + if (!event) + return grub_error (GRUB_ERR_OUT_OF_MEMORY, + N_("cannot allocate TPM event buffer")); + + event->PCRIndex = pcr; + event->EventType = EV_IPL; + event->EventSize = grub_strlen (description) + 1; + grub_memcpy (event->Event, description, event->EventSize); + + algorithm = TCG_ALG_SHA; + status = efi_call_7 (tpm->log_extend_event, tpm, (grub_addr_t) buf, (grub_uint64_t) size, + algorithm, event, &eventnum, &lastevent); + grub_free (event); + + return grub_efi_log_event_status (status); +} + +static grub_err_t +grub_tpm2_log_event (grub_efi_handle_t tpm_handle, unsigned char *buf, + grub_size_t size, grub_uint8_t pcr, + const char *description) +{ + EFI_TCG2_EVENT *event; + grub_efi_status_t status; + grub_efi_tpm2_protocol_t *tpm; + + tpm = grub_efi_open_protocol (tpm_handle, &tpm2_guid, + GRUB_EFI_OPEN_PROTOCOL_GET_PROTOCOL); + + if (!grub_tpm2_present (tpm)) + return 0; + + event = + grub_zalloc (sizeof (EFI_TCG2_EVENT) + grub_strlen (description) + 1); + if (!event) + return grub_error (GRUB_ERR_OUT_OF_MEMORY, + N_("cannot allocate TPM event buffer")); + + event->Header.HeaderSize = sizeof (EFI_TCG2_EVENT_HEADER); + event->Header.HeaderVersion = 1; + event->Header.PCRIndex = pcr; + event->Header.EventType = EV_IPL; + event->Size = + sizeof (*event) - sizeof (event->Event) + grub_strlen (description) + 1; + grub_memcpy (event->Event, description, grub_strlen (description) + 1); + + status = efi_call_5 (tpm->hash_log_extend_event, tpm, 0, (grub_addr_t) buf, + (grub_uint64_t) size, event); + grub_free (event); + + return grub_efi_log_event_status (status); +} + +grub_err_t +grub_tpm_measure (unsigned char *buf, grub_size_t size, grub_uint8_t pcr, + const char *description) +{ + grub_efi_handle_t tpm_handle; + grub_efi_uint8_t protocol_version; + + if (!grub_tpm_handle_find (&tpm_handle, &protocol_version)) + return 0; + + grub_dprintf ("tpm", "log_event, pcr = %d, size = 0x%" PRIxGRUB_SIZE ", %s\n", + pcr, size, description); + + if (protocol_version == 1) + return grub_tpm1_log_event (tpm_handle, buf, size, pcr, description); + else + return grub_tpm2_log_event (tpm_handle, buf, size, pcr, description); +} |