/*
* Copyright (c) 2013 The Chromium OS Authors.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program 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 2 of
- * the License, or (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
+#include <dm.h>
#include <malloc.h>
#include <tpm.h>
#include <asm/unaligned.h>
size_t count, length;
int i;
+ if (!bytes)
+ return NULL;
length = strlen(bytes);
count = length / 2;
}
/**
- * Convert TPM command return code to U-Boot command error codes.
+ * 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 convert_return_code(uint32_t return_code)
+static int report_return_code(int return_code)
{
- if (return_code)
+ if (return_code) {
+ printf("Error: %d\n", return_code);
return CMD_RET_FAILURE;
- else
+ } else {
return CMD_RET_SUCCESS;
+ }
}
/**
return CMD_RET_FAILURE;
}
- return convert_return_code(tpm_startup(mode));
+ return report_return_code(tpm_startup(mode));
}
static int do_tpm_nv_define_space(cmd_tbl_t *cmdtp, int flag,
perm = simple_strtoul(argv[2], NULL, 0);
size = simple_strtoul(argv[3], NULL, 0);
- return convert_return_code(tpm_nv_define_space(index, perm, size));
+ return report_return_code(tpm_nv_define_space(index, perm, size));
}
static int do_tpm_nv_read_value(cmd_tbl_t *cmdtp, int flag,
print_byte_string(data, count);
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_nv_write_value(cmd_tbl_t *cmdtp, int flag,
rc = tpm_nv_write_value(index, data, count);
free(data);
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_extend(cmd_tbl_t *cmdtp, int flag,
print_byte_string(out_digest, sizeof(out_digest));
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_pcr_read(cmd_tbl_t *cmdtp, int flag,
print_byte_string(data, count);
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_tsc_physical_presence(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_USAGE;
presence = (uint16_t)simple_strtoul(argv[1], NULL, 0);
- return convert_return_code(tpm_tsc_physical_presence(presence));
+ return report_return_code(tpm_tsc_physical_presence(presence));
}
static int do_tpm_read_pubek(cmd_tbl_t *cmdtp, int flag,
print_byte_string(data, count);
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_physical_set_deactivated(cmd_tbl_t *cmdtp, int flag,
return CMD_RET_USAGE;
state = (uint8_t)simple_strtoul(argv[1], NULL, 0);
- return convert_return_code(tpm_physical_set_deactivated(state));
+ return report_return_code(tpm_physical_set_deactivated(state));
}
static int do_tpm_get_capability(cmd_tbl_t *cmdtp, int flag,
print_byte_string(cap, count);
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
#define TPM_COMMAND_NO_ARG(cmd) \
{ \
if (argc != 1) \
return CMD_RET_USAGE; \
- return convert_return_code(cmd()); \
+ return report_return_code(cmd()); \
}
TPM_COMMAND_NO_ARG(tpm_init)
TPM_COMMAND_NO_ARG(tpm_physical_enable)
TPM_COMMAND_NO_ARG(tpm_physical_disable)
+#ifdef CONFIG_DM_TPM
+static int get_tpm(struct udevice **devp)
+{
+ int rc;
+
+ rc = uclass_first_device(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;
+}
+#endif
+
static int do_tpm_raw_transfer(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
return CMD_RET_FAILURE;
}
+#ifdef CONFIG_DM_TPM
+ struct udevice *dev;
+
+ rc = get_tpm(&dev);
+ if (rc)
+ return rc;
+
+ rc = tpm_xfer(dev, command, count, response, &response_length);
+#else
rc = tis_sendrecv(command, count, response, &response_length);
+#endif
free(command);
if (!rc) {
puts("tpm response:\n");
print_byte_string(response, response_length);
}
- return convert_return_code(rc);
+ return report_return_code(rc);
}
static int do_tpm_nv_define(cmd_tbl_t *cmdtp, int flag,
index = simple_strtoul(argv[2], NULL, 0);
perm = simple_strtoul(argv[3], NULL, 0);
- return convert_return_code(tpm_nv_define_space(index, perm, size));
+ return report_return_code(tpm_nv_define_space(index, perm, size));
}
static int do_tpm_nv_read(cmd_tbl_t *cmdtp, int flag,
}
free(data);
- return convert_return_code(err);
+ return report_return_code(err);
}
static int do_tpm_nv_write(cmd_tbl_t *cmdtp, int flag,
err = tpm_nv_write_value(index, data, count);
free(data);
- return convert_return_code(err);
+ return report_return_code(err);
}
#ifdef CONFIG_TPM_AUTH_SESSIONS
err = tpm_oiap(&auth_handle);
- return convert_return_code(err);
+ return report_return_code(err);
}
static int do_tpm_load_key2_oiap(cmd_tbl_t *cmdtp, int flag,
if (!err)
printf("Key handle is 0x%x\n", key_handle);
- return convert_return_code(err);
+ return report_return_code(err);
}
static int do_tpm_get_pub_key_oiap(cmd_tbl_t *cmdtp, int flag,
printf("dump of received pub key structure:\n");
print_byte_string(pub_key_buffer, pub_key_len);
}
- return convert_return_code(err);
+ return report_return_code(err);
}
TPM_COMMAND_NO_ARG(tpm_end_oiap)
U_BOOT_CMD_MKENT(cmd, 0, 1, do_tpm_ ## cmd, "", "")
static cmd_tbl_t tpm_commands[] = {
+#ifdef CONFIG_DM_TPM
+ U_BOOT_CMD_MKENT(info, 0, 1, do_tpm_info, "", ""),
+#endif
U_BOOT_CMD_MKENT(init, 0, 1,
do_tpm_init, "", ""),
U_BOOT_CMD_MKENT(startup, 0, 1,
"cmd args...\n"
" - Issue TPM command <cmd> with arguments <args...>.\n"
"Admin Startup and State Commands:\n"
+#ifdef CONFIG_DM_TPM
+" info - Show information about the TPM\n"
+#endif
" init\n"
" - Put TPM into a state where it waits for 'startup' command.\n"
" startup mode\n"
projects / karo-tx-uboot.git / blobdiff