Choice between v1 and v2 compliant functions is done with the configuration.
Create the various files that will receive TPMv2-only code on the same scheme as for the TPMv1 code.
Signed-off-by: Miquel Raynal miquel.raynal@bootlin.com Reviewed-by: Simon Glass sjg@chromium.org --- cmd/Makefile | 1 + cmd/tpm-v2.c | 33 ++++++++++++ drivers/tpm/tpm-uclass.c | 2 + include/tpm-common.h | 6 +++ include/tpm-v2.h | 128 +++++++++++++++++++++++++++++++++++++++++++++++ lib/Makefile | 1 + lib/tpm-v2.c | 11 ++++ 7 files changed, 182 insertions(+) create mode 100644 cmd/tpm-v2.c create mode 100644 include/tpm-v2.h create mode 100644 lib/tpm-v2.c
diff --git a/cmd/Makefile b/cmd/Makefile index 66732085e8..bdb5475e07 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -120,6 +120,7 @@ obj-$(CONFIG_HUSH_PARSER) += test.o obj-$(CONFIG_CMD_TPM) += tpm-common.o obj-$(CONFIG_CMD_TPM_V1) += tpm-v1.o obj-$(CONFIG_CMD_TPM_TEST) += tpm_test.o +obj-$(CONFIG_CMD_TPM_V2) += tpm-v2.o obj-$(CONFIG_CMD_CROS_EC) += cros_ec.o obj-$(CONFIG_CMD_TSI148) += tsi148.o obj-$(CONFIG_CMD_UBI) += ubi.o diff --git a/cmd/tpm-v2.c b/cmd/tpm-v2.c new file mode 100644 index 0000000000..606aa92409 --- /dev/null +++ b/cmd/tpm-v2.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2018 Bootlin + * Author: Miquel Raynal miquel.raynal@bootlin.com + */ + +#include <common.h> +#include <dm.h> +#include <log.h> +#include <tpm-common.h> +#include <tpm-v2.h> +#include "tpm-user-utils.h" + +static cmd_tbl_t tpm2_commands[] = { + U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""), + U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""), +}; + +cmd_tbl_t *get_tpm_commands(unsigned int *size) +{ + *size = ARRAY_SIZE(tpm2_commands); + + return tpm2_commands; +} + +U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm, "Issue a TPMv2.x command", +"<command> [<arguments>]\n" +"\n" +"info\n" +" Show information about the TPM.\n" +"init\n" +" Initialize the software stack. Always the first command to issue.\n" +); diff --git a/drivers/tpm/tpm-uclass.c b/drivers/tpm/tpm-uclass.c index eb0e511c8f..cbf4873cbb 100644 --- a/drivers/tpm/tpm-uclass.c +++ b/drivers/tpm/tpm-uclass.c @@ -10,6 +10,8 @@ #include <linux/unaligned/be_byteshift.h> #if defined(CONFIG_TPM_V1) #include <tpm-v1.h> +#elif defined(CONFIG_TPM_V2) +#include <tpm-v2.h> #endif #include "tpm_internal.h"
diff --git a/include/tpm-common.h b/include/tpm-common.h index 6b15466781..94f0f310b4 100644 --- a/include/tpm-common.h +++ b/include/tpm-common.h @@ -36,11 +36,17 @@ enum tpm_duration { * * @duration_ms: Length of each duration type in milliseconds * @retry_time_ms: Time to wait before retrying receive + * @pcr_count: Number of PCR per bank + * @pcr_select_min: Minimum size in bytes of the pcrSelect array * @buf: Buffer used during the exchanges with the chip */ struct tpm_chip_priv { uint duration_ms[TPM_DURATION_COUNT]; uint retry_time_ms; +#if defined(CONFIG_TPM_V2) + uint pcr_count; + uint pcr_select_min; +#endif u8 buf[TPM_DEV_BUFSIZE + sizeof(u8)]; /* Max buffer size + addr */ };
diff --git a/include/tpm-v2.h b/include/tpm-v2.h new file mode 100644 index 0000000000..09a7a8b183 --- /dev/null +++ b/include/tpm-v2.h @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2018 Bootlin + * Author: Miquel Raynal miquel.raynal@bootlin.com + */ + +#ifndef __TPM_V2_H +#define __TPM_V2_H + +#include <tpm-common.h> + +#define TPM2_DIGEST_LEN 32 + +/** + * TPM2 Structure Tags for command/response buffers. + * + * @TPM2_ST_NO_SESSIONS: the command does not need an authentication. + * @TPM2_ST_SESSIONS: the command needs an authentication. + */ +enum tpm2_structures { + TPM2_ST_NO_SESSIONS = 0x8001, + TPM2_ST_SESSIONS = 0x8002, +}; + +/** + * TPM2 type of boolean. + */ +enum tpm2_yes_no { + TPMI_YES = 1, + TPMI_NO = 0, +}; + +/** + * TPM2 startup values. + * + * @TPM2_SU_CLEAR: reset the internal state. + * @TPM2_SU_STATE: restore saved state (if any). + */ +enum tpm2_startup_types { + TPM2_SU_CLEAR = 0x0000, + TPM2_SU_STATE = 0x0001, +}; + +/** + * TPM2 permanent handles. + * + * @TPM2_RH_OWNER: refers to the 'owner' hierarchy. + * @TPM2_RS_PW: indicates a password. + * @TPM2_RH_LOCKOUT: refers to the 'lockout' hierarchy. + * @TPM2_RH_ENDORSEMENT: refers to the 'endorsement' hierarchy. + * @TPM2_RH_PLATFORM: refers to the 'platform' hierarchy. + */ +enum tpm2_handles { + TPM2_RH_OWNER = 0x40000001, + TPM2_RS_PW = 0x40000009, + TPM2_RH_LOCKOUT = 0x4000000A, + TPM2_RH_ENDORSEMENT = 0x4000000B, + TPM2_RH_PLATFORM = 0x4000000C, +}; + +/** + * TPM2 command codes used at the beginning of a buffer, gives the command. + * + * @TPM2_CC_STARTUP: TPM2_Startup(). + * @TPM2_CC_SELF_TEST: TPM2_SelfTest(). + * @TPM2_CC_CLEAR: TPM2_Clear(). + * @TPM2_CC_CLEARCONTROL: TPM2_ClearControl(). + * @TPM2_CC_HIERCHANGEAUTH: TPM2_HierarchyChangeAuth(). + * @TPM2_CC_PCR_SETAUTHPOL: TPM2_PCR_SetAuthPolicy(). + * @TPM2_CC_DAM_RESET: TPM2_DictionaryAttackLockReset(). + * @TPM2_CC_DAM_PARAMETERS: TPM2_DictionaryAttackParameters(). + * @TPM2_CC_GET_CAPABILITY: TPM2_GetCapibility(). + * @TPM2_CC_PCR_READ: TPM2_PCR_Read(). + * @TPM2_CC_PCR_EXTEND: TPM2_PCR_Extend(). + * @TPM2_CC_PCR_SETAUTHVAL: TPM2_PCR_SetAuthValue(). + */ +enum tpm2_command_codes { + TPM2_CC_STARTUP = 0x0144, + TPM2_CC_SELF_TEST = 0x0143, + TPM2_CC_CLEAR = 0x0126, + TPM2_CC_CLEARCONTROL = 0x0127, + TPM2_CC_HIERCHANGEAUTH = 0x0129, + TPM2_CC_DAM_RESET = 0x0139, + TPM2_CC_DAM_PARAMETERS = 0x013A, + TPM2_CC_GET_CAPABILITY = 0x017A, + TPM2_CC_PCR_READ = 0x017E, + TPM2_CC_PCR_EXTEND = 0x0182, +}; + +/** + * TPM2 return codes. + */ +enum tpm2_return_codes { + TPM2_RC_SUCCESS = 0x0000, + TPM2_RC_BAD_TAG = 0x001E, + TPM2_RC_FMT1 = 0x0080, + TPM2_RC_HASH = TPM2_RC_FMT1 + 0x0003, + TPM2_RC_VALUE = TPM2_RC_FMT1 + 0x0004, + TPM2_RC_SIZE = TPM2_RC_FMT1 + 0x0015, + TPM2_RC_BAD_AUTH = TPM2_RC_FMT1 + 0x0022, + TPM2_RC_HANDLE = TPM2_RC_FMT1 + 0x000B, + TPM2_RC_VER1 = 0x0100, + TPM2_RC_INITIALIZE = TPM2_RC_VER1 + 0x0000, + TPM2_RC_FAILURE = TPM2_RC_VER1 + 0x0001, + TPM2_RC_DISABLED = TPM2_RC_VER1 + 0x0020, + TPM2_RC_AUTH_MISSING = TPM2_RC_VER1 + 0x0025, + TPM2_RC_COMMAND_CODE = TPM2_RC_VER1 + 0x0043, + TPM2_RC_AUTHSIZE = TPM2_RC_VER1 + 0x0044, + TPM2_RC_AUTH_CONTEXT = TPM2_RC_VER1 + 0x0045, + TPM2_RC_NEEDS_TEST = TPM2_RC_VER1 + 0x0053, + TPM2_RC_WARN = 0x0900, + TPM2_RC_TESTING = TPM2_RC_WARN + 0x000A, + TPM2_RC_REFERENCE_H0 = TPM2_RC_WARN + 0x0010, + TPM2_RC_LOCKOUT = TPM2_RC_WARN + 0x0021, +}; + +/** + * TPM2 algorithms. + */ +enum tpm2_algorithms { + TPM2_ALG_XOR = 0x0A, + TPM2_ALG_SHA256 = 0x0B, + TPM2_ALG_SHA384 = 0x0C, + TPM2_ALG_SHA512 = 0x0D, + TPM2_ALG_NULL = 0x10, +}; + +#endif /* __TPM_V2_H */ diff --git a/lib/Makefile b/lib/Makefile index 2052954841..ddf8db6be8 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -42,6 +42,7 @@ obj-y += rc4.o obj-$(CONFIG_SUPPORT_EMMC_RPMB) += sha256.o obj-$(CONFIG_TPM) += tpm-common.o obj-$(CONFIG_TPM_V1) += tpm-v1.o +obj-$(CONFIG_TPM_V2) += tpm-v2.o obj-$(CONFIG_RBTREE) += rbtree.o obj-$(CONFIG_BITREVERSE) += bitrev.o obj-y += list_sort.o diff --git a/lib/tpm-v2.c b/lib/tpm-v2.c new file mode 100644 index 0000000000..ef4ebcd8ac --- /dev/null +++ b/lib/tpm-v2.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2018 Bootlin + * Author: Miquel Raynal miquel.raynal@bootlin.com + */ + +#include <common.h> +#include <dm.h> +#include <tpm-common.h> +#include <tpm-v2.h> +#include "tpm-utils.h"