diff options
author | Miquel Raynal <miquel.raynal@bootlin.com> | 2018-05-15 11:57:06 +0200 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2018-05-25 20:12:55 -0400 |
commit | d677bfe2f7914367d1caa6146b34e86d0df1c75d (patch) | |
tree | a9fd34e6cceac25b6d232ab2d07460648cb53022 /cmd/tpm.c | |
parent | 9f9ce3c369b7fbcc47496331ff28fad80302a42c (diff) | |
download | u-boot-d677bfe2f7914367d1caa6146b34e86d0df1c75d.tar.gz |
tpm: disociate TPMv1.x specific and generic code
There are no changes in this commit but a new organization of the code
as follow.
* cmd/ directory:
> move existing code from cmd/tpm.c in cmd/tpm-common.c
> move specific code in cmd/tpm-v1.c
> create a specific header file with generic definitions for
commands only called cmd/tpm-user-utils.h
* lib/ directory:
> move existing code from lib/tpm.c in lib/tpm-common.c
> move specific code in lib/tpm-v1.c
> create a specific header file with generic definitions for
the library itself called lib/tpm-utils.h
* include/ directory:
> move existing code from include/tpm.h in include/tpm-common.h
> move specific code in include/tpm-v1.h
Code designated as 'common' is compiled if TPM are used. Code designated
as 'specific' is compiled only if the right specification has been
selected.
All files include tpm-common.h.
Files in cmd/ include tpm-user-utils.h.
Files in lib/ include tpm-utils.h.
Depending on the specification, files may include either (not both)
tpm-v1.h or tpm-v2.h.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Fix a few more cases of tpm.h -> tpm-v1.h, some Kconfig logic]
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'cmd/tpm.c')
-rw-r--r-- | cmd/tpm.c | 1001 |
1 files changed, 0 insertions, 1001 deletions
diff --git a/cmd/tpm.c b/cmd/tpm.c deleted file mode 100644 index e0cd8410f5..0000000000 --- a/cmd/tpm.c +++ /dev/null @@ -1,1001 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (c) 2013 The Chromium OS Authors. - */ - -#include <common.h> -#include <command.h> -#include <dm.h> -#include <malloc.h> -#include <tpm.h> -#include <asm/unaligned.h> -#include <linux/string.h> - -/* Useful constants */ -enum { - DIGEST_LENGTH = 20, - /* max lengths, valid for RSA keys <= 2048 bits */ - TPM_PUBKEY_MAX_LENGTH = 288, -}; - -/** - * Print a byte string in hexdecimal format, 16-bytes per line. - * - * @param data byte string to be printed - * @param count number of bytes to be printed - */ -static void print_byte_string(u8 *data, size_t count) -{ - int i, print_newline = 0; - - for (i = 0; i < count; i++) { - printf(" %02x", data[i]); - print_newline = (i % 16 == 15); - if (print_newline) - putc('\n'); - } - /* Avoid duplicated newline at the end */ - if (!print_newline) - putc('\n'); -} - -/** - * Convert a text string of hexdecimal values into a byte string. - * - * @param bytes text string of hexdecimal values with no space - * between them - * @param data output buffer for byte string. The caller has to make - * sure it is large enough for storing the output. If - * NULL is passed, a large enough buffer will be allocated, - * and the caller must free it. - * @param count_ptr output variable for the length of byte string - * @return pointer to output buffer - */ -static void *parse_byte_string(char *bytes, u8 *data, size_t *count_ptr) -{ - char byte[3]; - size_t count, length; - int i; - - if (!bytes) - return NULL; - length = strlen(bytes); - count = length / 2; - - if (!data) - data = malloc(count); - if (!data) - return NULL; - - byte[2] = '\0'; - for (i = 0; i < length; i += 2) { - byte[0] = bytes[i]; - byte[1] = bytes[i + 1]; - data[i / 2] = (u8)simple_strtoul(byte, NULL, 16); - } - - if (count_ptr) - *count_ptr = count; - - return data; -} - -/** - * report_return_code() - Report any error and return failure or success - * - * @param return_code TPM command return code - * @return value of enum command_ret_t - */ -static int report_return_code(int return_code) -{ - if (return_code) { - printf("Error: %d\n", return_code); - return CMD_RET_FAILURE; - } else { - return CMD_RET_SUCCESS; - } -} - -/** - * Return number of values defined by a type string. - * - * @param type_str type string - * @return number of values of type string - */ -static int type_string_get_num_values(const char *type_str) -{ - return strlen(type_str); -} - -/** - * Return total size of values defined by a type string. - * - * @param type_str type string - * @return total size of values of type string, or 0 if type string - * contains illegal type character. - */ -static size_t type_string_get_space_size(const char *type_str) -{ - size_t size; - - for (size = 0; *type_str; type_str++) { - switch (*type_str) { - case 'b': - size += 1; - break; - case 'w': - size += 2; - break; - case 'd': - size += 4; - break; - default: - return 0; - } - } - - return size; -} - -/** - * Allocate a buffer large enough to hold values defined by a type - * string. The caller has to free the buffer. - * - * @param type_str type string - * @param count pointer for storing size of buffer - * @return pointer to buffer or NULL on error - */ -static void *type_string_alloc(const char *type_str, u32 *count) -{ - void *data; - size_t size; - - size = type_string_get_space_size(type_str); - if (!size) - return NULL; - data = malloc(size); - if (data) - *count = size; - - return data; -} - -/** - * Pack values defined by a type string into a buffer. The buffer must have - * large enough space. - * - * @param type_str type string - * @param values text strings of values to be packed - * @param data output buffer of values - * @return 0 on success, non-0 on error - */ -static int type_string_pack(const char *type_str, char * const values[], - u8 *data) -{ - size_t offset; - u32 value; - - for (offset = 0; *type_str; type_str++, values++) { - value = simple_strtoul(values[0], NULL, 0); - switch (*type_str) { - case 'b': - data[offset] = value; - offset += 1; - break; - case 'w': - put_unaligned_be16(value, data + offset); - offset += 2; - break; - case 'd': - put_unaligned_be32(value, data + offset); - offset += 4; - break; - default: - return -1; - } - } - - return 0; -} - -/** - * Read values defined by a type string from a buffer, and write these values - * to environment variables. - * - * @param type_str type string - * @param data input buffer of values - * @param vars names of environment variables - * @return 0 on success, non-0 on error - */ -static int type_string_write_vars(const char *type_str, u8 *data, - char * const vars[]) -{ - size_t offset; - u32 value; - - for (offset = 0; *type_str; type_str++, vars++) { - switch (*type_str) { - case 'b': - value = data[offset]; - offset += 1; - break; - case 'w': - value = get_unaligned_be16(data + offset); - offset += 2; - break; - case 'd': - value = get_unaligned_be32(data + offset); - offset += 4; - break; - default: - return -1; - } - if (env_set_ulong(*vars, value)) - return -1; - } - - return 0; -} - -static int do_tpm_startup(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - enum tpm_startup_type mode; - - if (argc != 2) - return CMD_RET_USAGE; - if (!strcasecmp("TPM_ST_CLEAR", argv[1])) { - mode = TPM_ST_CLEAR; - } else if (!strcasecmp("TPM_ST_STATE", argv[1])) { - mode = TPM_ST_STATE; - } else if (!strcasecmp("TPM_ST_DEACTIVATED", argv[1])) { - mode = TPM_ST_DEACTIVATED; - } else { - printf("Couldn't recognize mode string: %s\n", argv[1]); - return CMD_RET_FAILURE; - } - - return report_return_code(tpm_startup(mode)); -} - -static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, perm, size; - - if (argc != 4) - return CMD_RET_USAGE; - index = simple_strtoul(argv[1], NULL, 0); - perm = simple_strtoul(argv[2], NULL, 0); - size = simple_strtoul(argv[3], NULL, 0); - - return report_return_code(tpm_nv_define_space(index, perm, size)); -} - -static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, count, rc; - void *data; - - if (argc != 4) - return CMD_RET_USAGE; - index = simple_strtoul(argv[1], NULL, 0); - data = (void *)simple_strtoul(argv[2], NULL, 0); - count = simple_strtoul(argv[3], NULL, 0); - - rc = tpm_nv_read_value(index, data, count); - if (!rc) { - puts("area content:\n"); - print_byte_string(data, count); - } - - return report_return_code(rc); -} - -static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, rc; - size_t count; - void *data; - - if (argc != 3) - return CMD_RET_USAGE; - index = simple_strtoul(argv[1], NULL, 0); - data = parse_byte_string(argv[2], NULL, &count); - if (!data) { - printf("Couldn't parse byte string %s\n", argv[2]); - return CMD_RET_FAILURE; - } - - rc = tpm_nv_write_value(index, data, count); - free(data); - - return report_return_code(rc); -} - -static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, rc; - u8 in_digest[20], out_digest[20]; - - if (argc != 3) - return CMD_RET_USAGE; - index = simple_strtoul(argv[1], NULL, 0); - if (!parse_byte_string(argv[2], in_digest, NULL)) { - printf("Couldn't parse byte string %s\n", argv[2]); - return CMD_RET_FAILURE; - } - - rc = tpm_extend(index, in_digest, out_digest); - if (!rc) { - puts("PCR value after execution of the command:\n"); - print_byte_string(out_digest, sizeof(out_digest)); - } - - return report_return_code(rc); -} - -static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, count, rc; - void *data; - - if (argc != 4) - return CMD_RET_USAGE; - index = simple_strtoul(argv[1], NULL, 0); - data = (void *)simple_strtoul(argv[2], NULL, 0); - count = simple_strtoul(argv[3], NULL, 0); - - rc = tpm_pcr_read(index, data, count); - if (!rc) { - puts("Named PCR content:\n"); - print_byte_string(data, count); - } - - return report_return_code(rc); -} - -static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u16 presence; - - if (argc != 2) - return CMD_RET_USAGE; - presence = (u16)simple_strtoul(argv[1], NULL, 0); - - return report_return_code(tpm_tsc_physical_presence(presence)); -} - -static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 count, rc; - void *data; - - if (argc != 3) - return CMD_RET_USAGE; - data = (void *)simple_strtoul(argv[1], NULL, 0); - count = simple_strtoul(argv[2], NULL, 0); - - rc = tpm_read_pubek(data, count); - if (!rc) { - puts("pubek value:\n"); - print_byte_string(data, count); - } - - return report_return_code(rc); -} - -static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u8 state; - - if (argc != 2) - return CMD_RET_USAGE; - state = (u8)simple_strtoul(argv[1], NULL, 0); - - return report_return_code(tpm_physical_set_deactivated(state)); -} - -static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 cap_area, sub_cap, rc; - void *cap; - size_t count; - - if (argc != 5) - return CMD_RET_USAGE; - cap_area = simple_strtoul(argv[1], NULL, 0); - sub_cap = simple_strtoul(argv[2], NULL, 0); - cap = (void *)simple_strtoul(argv[3], NULL, 0); - count = simple_strtoul(argv[4], NULL, 0); - - rc = tpm_get_capability(cap_area, sub_cap, cap, count); - if (!rc) { - puts("capability information:\n"); - print_byte_string(cap, count); - } - - return report_return_code(rc); -} - -#define TPM_COMMAND_NO_ARG(cmd) \ -static int do_##cmd(cmd_tbl_t *cmdtp, int flag, \ - int argc, char * const argv[]) \ -{ \ - if (argc != 1) \ - return CMD_RET_USAGE; \ - return report_return_code(cmd()); \ -} - -TPM_COMMAND_NO_ARG(tpm_init) -TPM_COMMAND_NO_ARG(tpm_self_test_full) -TPM_COMMAND_NO_ARG(tpm_continue_self_test) -TPM_COMMAND_NO_ARG(tpm_force_clear) -TPM_COMMAND_NO_ARG(tpm_physical_enable) -TPM_COMMAND_NO_ARG(tpm_physical_disable) - -static int get_tpm(struct udevice **devp) -{ - int rc; - - rc = uclass_first_device_err(UCLASS_TPM, devp); - if (rc) { - printf("Could not find TPM (ret=%d)\n", rc); - return CMD_RET_FAILURE; - } - - return 0; -} - -static int do_tpm_info(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) -{ - struct udevice *dev; - char buf[80]; - int rc; - - rc = get_tpm(&dev); - if (rc) - return rc; - rc = tpm_get_desc(dev, buf, sizeof(buf)); - if (rc < 0) { - printf("Couldn't get TPM info (%d)\n", rc); - return CMD_RET_FAILURE; - } - printf("%s\n", buf); - - return 0; -} - -static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - struct udevice *dev; - void *command; - u8 response[1024]; - size_t count, response_length = sizeof(response); - u32 rc; - - command = parse_byte_string(argv[1], NULL, &count); - if (!command) { - printf("Couldn't parse byte string %s\n", argv[1]); - return CMD_RET_FAILURE; - } - - rc = get_tpm(&dev); - if (rc) - return rc; - - rc = tpm_xfer(dev, command, count, response, &response_length); - free(command); - if (!rc) { - puts("tpm response:\n"); - print_byte_string(response, response_length); - } - - return report_return_code(rc); -} - -static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, perm, size; - - if (argc != 4) - return CMD_RET_USAGE; - size = type_string_get_space_size(argv[1]); - if (!size) { - printf("Couldn't parse arguments\n"); - return CMD_RET_USAGE; - } - index = simple_strtoul(argv[2], NULL, 0); - perm = simple_strtoul(argv[3], NULL, 0); - - return report_return_code(tpm_nv_define_space(index, perm, size)); -} - -static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, count, err; - void *data; - - if (argc < 3) - return CMD_RET_USAGE; - if (argc != 3 + type_string_get_num_values(argv[1])) - return CMD_RET_USAGE; - index = simple_strtoul(argv[2], NULL, 0); - data = type_string_alloc(argv[1], &count); - if (!data) { - printf("Couldn't parse arguments\n"); - return CMD_RET_USAGE; - } - - err = tpm_nv_read_value(index, data, count); - if (!err) { - if (type_string_write_vars(argv[1], data, argv + 3)) { - printf("Couldn't write to variables\n"); - err = ~0; - } - } - free(data); - - return report_return_code(err); -} - -static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 index, count, err; - void *data; - - if (argc < 3) - return CMD_RET_USAGE; - if (argc != 3 + type_string_get_num_values(argv[1])) - return CMD_RET_USAGE; - index = simple_strtoul(argv[2], NULL, 0); - data = type_string_alloc(argv[1], &count); - if (!data) { - printf("Couldn't parse arguments\n"); - return CMD_RET_USAGE; - } - if (type_string_pack(argv[1], argv + 3, data)) { - printf("Couldn't parse arguments\n"); - free(data); - return CMD_RET_USAGE; - } - - err = tpm_nv_write_value(index, data, count); - free(data); - - return report_return_code(err); -} - -#ifdef CONFIG_TPM_AUTH_SESSIONS - -static int do_tpm_oiap(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 auth_handle, err; - - err = tpm_oiap(&auth_handle); - - return report_return_code(err); -} - -#ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1 -static int do_tpm_load_key_by_sha1(cmd_tbl_t *cmdtp, int flag, int argc, char * - const argv[]) -{ - u32 parent_handle = 0; - u32 key_len, key_handle, err; - u8 usage_auth[DIGEST_LENGTH]; - u8 parent_hash[DIGEST_LENGTH]; - void *key; - - if (argc < 5) - return CMD_RET_USAGE; - - parse_byte_string(argv[1], parent_hash, NULL); - key = (void *)simple_strtoul(argv[2], NULL, 0); - key_len = simple_strtoul(argv[3], NULL, 0); - if (strlen(argv[4]) != 2 * DIGEST_LENGTH) - return CMD_RET_FAILURE; - parse_byte_string(argv[4], usage_auth, NULL); - - err = tpm_find_key_sha1(usage_auth, parent_hash, &parent_handle); - if (err) { - printf("Could not find matching parent key (err = %d)\n", err); - return CMD_RET_FAILURE; - } - - printf("Found parent key %08x\n", parent_handle); - - err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth, - &key_handle); - if (!err) { - printf("Key handle is 0x%x\n", key_handle); - env_set_hex("key_handle", key_handle); - } - - return report_return_code(err); -} -#endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */ - -static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 parent_handle, key_len, key_handle, err; - u8 usage_auth[DIGEST_LENGTH]; - void *key; - - if (argc < 5) - return CMD_RET_USAGE; - - parent_handle = simple_strtoul(argv[1], NULL, 0); - key = (void *)simple_strtoul(argv[2], NULL, 0); - key_len = simple_strtoul(argv[3], NULL, 0); - if (strlen(argv[4]) != 2 * DIGEST_LENGTH) - return CMD_RET_FAILURE; - parse_byte_string(argv[4], usage_auth, NULL); - - err = tpm_load_key2_oiap(parent_handle, key, key_len, usage_auth, - &key_handle); - if (!err) - printf("Key handle is 0x%x\n", key_handle); - - return report_return_code(err); -} - -static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - u32 key_handle, err; - u8 usage_auth[DIGEST_LENGTH]; - u8 pub_key_buffer[TPM_PUBKEY_MAX_LENGTH]; - size_t pub_key_len = sizeof(pub_key_buffer); - - if (argc < 3) - return CMD_RET_USAGE; - - key_handle = simple_strtoul(argv[1], NULL, 0); - if (strlen(argv[2]) != 2 * DIGEST_LENGTH) - return CMD_RET_FAILURE; - parse_byte_string(argv[2], usage_auth, NULL); - - err = tpm_get_pub_key_oiap(key_handle, usage_auth, pub_key_buffer, - &pub_key_len); - if (!err) { - printf("dump of received pub key structure:\n"); - print_byte_string(pub_key_buffer, pub_key_len); - } - return report_return_code(err); -} - -TPM_COMMAND_NO_ARG(tpm_end_oiap) - -#endif /* CONFIG_TPM_AUTH_SESSIONS */ - -#ifdef CONFIG_TPM_FLUSH_RESOURCES -static int do_tpm_flush(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - int type = 0; - - if (argc != 3) - return CMD_RET_USAGE; - - if (!strcasecmp(argv[1], "key")) - type = TPM_RT_KEY; - else if (!strcasecmp(argv[1], "auth")) - type = TPM_RT_AUTH; - else if (!strcasecmp(argv[1], "hash")) - type = TPM_RT_HASH; - else if (!strcasecmp(argv[1], "trans")) - type = TPM_RT_TRANS; - else if (!strcasecmp(argv[1], "context")) - type = TPM_RT_CONTEXT; - else if (!strcasecmp(argv[1], "counter")) - type = TPM_RT_COUNTER; - else if (!strcasecmp(argv[1], "delegate")) - type = TPM_RT_DELEGATE; - else if (!strcasecmp(argv[1], "daa_tpm")) - type = TPM_RT_DAA_TPM; - else if (!strcasecmp(argv[1], "daa_v0")) - type = TPM_RT_DAA_V0; - else if (!strcasecmp(argv[1], "daa_v1")) - type = TPM_RT_DAA_V1; - - if (!type) { - printf("Resource type %s unknown.\n", argv[1]); - return -1; - } - - if (!strcasecmp(argv[2], "all")) { - u16 res_count; - u8 buf[288]; - u8 *ptr; - int err; - uint i; - - /* fetch list of already loaded resources in the TPM */ - err = tpm_get_capability(TPM_CAP_HANDLE, type, buf, - sizeof(buf)); - if (err) { - printf("tpm_get_capability returned error %d.\n", err); - return -1; - } - res_count = get_unaligned_be16(buf); - ptr = buf + 2; - for (i = 0; i < res_count; ++i, ptr += 4) - tpm_flush_specific(get_unaligned_be32(ptr), type); - } else { - u32 handle = simple_strtoul(argv[2], NULL, 0); - - if (!handle) { - printf("Illegal resource handle %s\n", argv[2]); - return -1; - } - tpm_flush_specific(cpu_to_be32(handle), type); - } - - return 0; -} -#endif /* CONFIG_TPM_FLUSH_RESOURCES */ - -#ifdef CONFIG_TPM_LIST_RESOURCES -static int do_tpm_list(cmd_tbl_t *cmdtp, int flag, int argc, - char * const argv[]) -{ - int type = 0; - u16 res_count; - u8 buf[288]; - u8 *ptr; - int err; - uint i; - - if (argc != 2) - return CMD_RET_USAGE; - - if (!strcasecmp(argv[1], "key")) - type = TPM_RT_KEY; - else if (!strcasecmp(argv[1], "auth")) - type = TPM_RT_AUTH; - else if (!strcasecmp(argv[1], "hash")) - type = TPM_RT_HASH; - else if (!strcasecmp(argv[1], "trans")) - type = TPM_RT_TRANS; - else if (!strcasecmp(argv[1], "context")) - type = TPM_RT_CONTEXT; - else if (!strcasecmp(argv[1], "counter")) - type = TPM_RT_COUNTER; - else if (!strcasecmp(argv[1], "delegate")) - type = TPM_RT_DELEGATE; - else if (!strcasecmp(argv[1], "daa_tpm")) - type = TPM_RT_DAA_TPM; - else if (!strcasecmp(argv[1], "daa_v0")) - type = TPM_RT_DAA_V0; - else if (!strcasecmp(argv[1], "daa_v1")) - type = TPM_RT_DAA_V1; - - if (!type) { - printf("Resource type %s unknown.\n", argv[1]); - return -1; - } - - /* fetch list of already loaded resources in the TPM */ - err = tpm_get_capability(TPM_CAP_HANDLE, type, buf, - sizeof(buf)); - if (err) { - printf("tpm_get_capability returned error %d.\n", err); - return -1; - } - res_count = get_unaligned_be16(buf); - ptr = buf + 2; - - printf("Resources of type %s (%02x):\n", argv[1], type); - if (!res_count) { - puts("None\n"); - } else { - for (i = 0; i < res_count; ++i, ptr += 4) - printf("Index %d: %08x\n", i, get_unaligned_be32(ptr)); - } - - return 0; -} -#endif /* CONFIG_TPM_LIST_RESOURCES */ - -#define MAKE_TPM_CMD_ENTRY(cmd) \ - U_BOOT_CMD_MKENT(cmd, 0, 1, do_tpm_ ## cmd, "", "") - -static cmd_tbl_t tpm_commands[] = { - U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""), - U_BOOT_CMD_MKENT(init, 0, 1, do_tpm_init, "", ""), - U_BOOT_CMD_MKENT(startup, 0, 1, - do_tpm_startup, "", ""), - U_BOOT_CMD_MKENT(self_test_full, 0, 1, - do_tpm_self_test_full, "", ""), - U_BOOT_CMD_MKENT(continue_self_test, 0, 1, - do_tpm_continue_self_test, "", ""), - U_BOOT_CMD_MKENT(force_clear, 0, 1, - do_tpm_force_clear, "", ""), - U_BOOT_CMD_MKENT(physical_enable, 0, 1, - do_tpm_physical_enable, "", ""), - U_BOOT_CMD_MKENT(physical_disable, 0, 1, - do_tpm_physical_disable, "", ""), - U_BOOT_CMD_MKENT(nv_define_space, 0, 1, - do_tpm_nv_define_space, "", ""), - U_BOOT_CMD_MKENT(nv_read_value, 0, 1, - do_tpm_nv_read_value, "", ""), - U_BOOT_CMD_MKENT(nv_write_value, 0, 1, - do_tpm_nv_write_value, "", ""), - U_BOOT_CMD_MKENT(extend, 0, 1, - do_tpm_extend, "", ""), - U_BOOT_CMD_MKENT(pcr_read, 0, 1, - do_tpm_pcr_read, "", ""), - U_BOOT_CMD_MKENT(tsc_physical_presence, 0, 1, - do_tpm_tsc_physical_presence, "", ""), - U_BOOT_CMD_MKENT(read_pubek, 0, 1, - do_tpm_read_pubek, "", ""), - U_BOOT_CMD_MKENT(physical_set_deactivated, 0, 1, - do_tpm_physical_set_deactivated, "", ""), - U_BOOT_CMD_MKENT(get_capability, 0, 1, - do_tpm_get_capability, "", ""), - U_BOOT_CMD_MKENT(raw_transfer, 0, 1, - do_tpm_raw_transfer, "", ""), - U_BOOT_CMD_MKENT(nv_define, 0, 1, - do_tpm_nv_define, "", ""), - U_BOOT_CMD_MKENT(nv_read, 0, 1, - do_tpm_nv_read, "", ""), - U_BOOT_CMD_MKENT(nv_write, 0, 1, - do_tpm_nv_write, "", ""), -#ifdef CONFIG_TPM_AUTH_SESSIONS - U_BOOT_CMD_MKENT(oiap, 0, 1, - do_tpm_oiap, "", ""), - U_BOOT_CMD_MKENT(end_oiap, 0, 1, - do_tpm_end_oiap, "", ""), - U_BOOT_CMD_MKENT(load_key2_oiap, 0, 1, - do_tpm_load_key2_oiap, "", ""), -#ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1 - U_BOOT_CMD_MKENT(load_key_by_sha1, 0, 1, - do_tpm_load_key_by_sha1, "", ""), -#endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */ - U_BOOT_CMD_MKENT(get_pub_key_oiap, 0, 1, - do_tpm_get_pub_key_oiap, "", ""), -#endif /* CONFIG_TPM_AUTH_SESSIONS */ -#ifdef CONFIG_TPM_FLUSH_RESOURCES - U_BOOT_CMD_MKENT(flush, 0, 1, - do_tpm_flush, "", ""), -#endif /* CONFIG_TPM_FLUSH_RESOURCES */ -#ifdef CONFIG_TPM_LIST_RESOURCES - U_BOOT_CMD_MKENT(list, 0, 1, - do_tpm_list, "", ""), -#endif /* CONFIG_TPM_LIST_RESOURCES */ -}; - -static int do_tpm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - cmd_tbl_t *tpm_cmd; - - if (argc < 2) - return CMD_RET_USAGE; - tpm_cmd = find_cmd_tbl(argv[1], tpm_commands, ARRAY_SIZE(tpm_commands)); - if (!tpm_cmd) - return CMD_RET_USAGE; - - return tpm_cmd->cmd(cmdtp, flag, argc - 1, argv + 1); -} - -U_BOOT_CMD(tpm, CONFIG_SYS_MAXARGS, 1, do_tpm, -"Issue a TPM command", -"cmd args...\n" -" - Issue TPM command <cmd> with arguments <args...>.\n" -"Admin Startup and State Commands:\n" -" info - Show information about the TPM\n" -" init\n" -" - Put TPM into a state where it waits for 'startup' command.\n" -" startup mode\n" -" - Issue TPM_Starup command. <mode> is one of TPM_ST_CLEAR,\n" -" TPM_ST_STATE, and TPM_ST_DEACTIVATED.\n" -"Admin Testing Commands:\n" -" self_test_full\n" -" - Test all of the TPM capabilities.\n" -" continue_self_test\n" -" - Inform TPM that it should complete the self-test.\n" -"Admin Opt-in Commands:\n" -" physical_enable\n" -" - Set the PERMANENT disable flag to FALSE using physical presence as\n" -" authorization.\n" -" physical_disable\n" -" - Set the PERMANENT disable flag to TRUE using physical presence as\n" -" authorization.\n" -" physical_set_deactivated 0|1\n" -" - Set deactivated flag.\n" -"Admin Ownership Commands:\n" -" force_clear\n" -" - Issue TPM_ForceClear command.\n" -" tsc_physical_presence flags\n" -" - Set TPM device's Physical Presence flags to <flags>.\n" -"The Capability Commands:\n" -" get_capability cap_area sub_cap addr count\n" -" - Read <count> bytes of TPM capability indexed by <cap_area> and\n" -" <sub_cap> to memory address <addr>.\n" -#if defined(CONFIG_TPM_FLUSH_RESOURCES) || defined(CONFIG_TPM_LIST_RESOURCES) -"Resource management functions\n" -#endif -#ifdef CONFIG_TPM_FLUSH_RESOURCES -" flush resource_type id\n" -" - flushes a resource of type <resource_type> (may be one of key, auth,\n" -" hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n" -" and id <id> from the TPM. Use an <id> of \"all\" to flush all\n" -" resources of that type.\n" -#endif /* CONFIG_TPM_FLUSH_RESOURCES */ -#ifdef CONFIG_TPM_LIST_RESOURCES -" list resource_type\n" -" - lists resources of type <resource_type> (may be one of key, auth,\n" -" hash, trans, context, counter, delegate, daa_tpm, daa_v0, daa_v1),\n" -" contained in the TPM.\n" -#endif /* CONFIG_TPM_LIST_RESOURCES */ -#ifdef CONFIG_TPM_AUTH_SESSIONS -"Storage functions\n" -" loadkey2_oiap parent_handle key_addr key_len usage_auth\n" -" - loads a key data from memory address <key_addr>, <key_len> bytes\n" -" into TPM using the parent key <parent_handle> with authorization\n" -" <usage_auth> (20 bytes hex string).\n" -#ifdef CONFIG_TPM_LOAD_KEY_BY_SHA1 -" load_key_by_sha1 parent_hash key_addr key_len usage_auth\n" -" - loads a key data from memory address <key_addr>, <key_len> bytes\n" -" into TPM using the parent hash <parent_hash> (20 bytes hex string)\n" -" with authorization <usage_auth> (20 bytes hex string).\n" -#endif /* CONFIG_TPM_LOAD_KEY_BY_SHA1 */ -" get_pub_key_oiap key_handle usage_auth\n" -" - get the public key portion of a loaded key <key_handle> using\n" -" authorization <usage auth> (20 bytes hex string)\n" -#endif /* CONFIG_TPM_AUTH_SESSIONS */ -"Endorsement Key Handling Commands:\n" -" read_pubek addr count\n" -" - Read <count> bytes of the public endorsement key to memory\n" -" address <addr>\n" -"Integrity Collection and Reporting Commands:\n" -" extend index digest_hex_string\n" -" - Add a new measurement to a PCR. Update PCR <index> with the 20-bytes\n" -" <digest_hex_string>\n" -" pcr_read index addr count\n" -" - Read <count> bytes from PCR <index> to memory address <addr>.\n" -#ifdef CONFIG_TPM_AUTH_SESSIONS -"Authorization Sessions\n" -" oiap\n" -" - setup an OIAP session\n" -" end_oiap\n" -" - terminates an active OIAP session\n" -#endif /* CONFIG_TPM_AUTH_SESSIONS */ -"Non-volatile Storage Commands:\n" -" nv_define_space index permission size\n" -" - Establish a space at index <index> with <permission> of <size> bytes.\n" -" nv_read_value index addr count\n" -" - Read <count> bytes from space <index> to memory address <addr>.\n" -" nv_write_value index addr count\n" -" - Write <count> bytes from memory address <addr> to space <index>.\n" -"Miscellaneous helper functions:\n" -" raw_transfer byte_string\n" -" - Send a byte string <byte_string> to TPM and print the response.\n" -" Non-volatile storage helper functions:\n" -" These helper functions treat a non-volatile space as a non-padded\n" -" sequence of integer values. These integer values are defined by a type\n" -" string, which is a text string of 'bwd' characters: 'b' means a 8-bit\n" -" value, 'w' 16-bit value, 'd' 32-bit value. All helper functions take\n" -" a type string as their first argument.\n" -" nv_define type_string index perm\n" -" - Define a space <index> with permission <perm>.\n" -" nv_read types_string index vars...\n" -" - Read from space <index> to environment variables <vars...>.\n" -" nv_write types_string index values...\n" -" - Write to space <index> from values <values...>.\n" -); |