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authorSascha Hauer <s.hauer@pengutronix.de>2016-01-25 19:20:14 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2016-02-02 15:41:04 +0100
commit2ff23512d999a13afaa6f96b199b375a76cd1941 (patch)
tree6da5f22231b91f368bf535fe7931a7254e4f58f7 /drivers/habv4/habv4.c
parent341d550c504924d704a87389d04178e0c03af77d (diff)
downloadbarebox-2ff23512d999a13afaa6f96b199b375a76cd1941.tar.gz
barebox-2ff23512d999a13afaa6f96b199b375a76cd1941.tar.xz
imx: hab: rename driver dir to hab/
There's not only HABv4 but also HABv3. No need to put the corresponding code in separate directories, so rename the habv4 directory to hab. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/habv4/habv4.c')
-rw-r--r--drivers/habv4/habv4.c237
1 files changed, 0 insertions, 237 deletions
diff --git a/drivers/habv4/habv4.c b/drivers/habv4/habv4.c
deleted file mode 100644
index 5ace0def2a..0000000000
--- a/drivers/habv4/habv4.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Copyright (C) 2014, 2015 Marc Kleine-Budde <mkl@pengutronix.de>
- * Copyright (C) 2010 Freescale Semiconductor, Inc.
- *
- * 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.
- */
-
-#define pr_fmt(fmt) "HABv4: " fmt
-
-#include <common.h>
-#include <habv4.h>
-#include <types.h>
-
-#include <mach/generic.h>
-
-#define HABV4_RVT_IMX28 0xffff8af8
-#define HABV4_RVT_IMX6 0x00000094
-
-enum hab_tag {
- HAB_TAG_IVT = 0xd1, /* Image Vector Table */
- HAB_TAG_DCD = 0xd2, /* Device Configuration Data */
- HAB_TAG_CSF = 0xd4, /* Command Sequence File */
- HAB_TAG_CRT = 0xd7, /* Certificate */
- HAB_TAG_SIG = 0xd8, /* Signature */
- HAB_TAG_EVT = 0xdb, /* Event */
- HAB_TAG_RVT = 0xdd, /* ROM Vector Table */
- HAB_TAG_WRP = 0x81, /* Wrapped Key */
- HAB_TAG_MAC = 0xac, /* Message Authentication Code */
-};
-
-/* Status definitions */
-enum hab_status {
- HAB_STATUS_ANY = 0x00, /* Match any status in report_event */
- HAB_STATUS_FAILURE = 0x33, /* Operation failed */
- HAB_STATUS_WARNING = 0x69, /* Operation completed with warning */
- HAB_STATUS_SUCCESS = 0xf0, /* Operation completed successfully */
-};
-
-/* Security Configuration definitions */
-enum hab_config {
- HAB_CONFIG_FAB = 0x00, /* Un-programmed IC */
- HAB_CONFIG_RETURN = 0x33, /* Field Return IC */
- HAB_CONFIG_OPEN = 0xf0, /* Non-secure IC */
- HAB_CONFIG_CLOSED = 0xcc, /* Secure IC */
-};
-
-/* State definitions */
-enum hab_state {
- HAB_STATE_INITIAL = 0x33, /* Initialising state (transitory) */
- HAB_STATE_CHECK = 0x55, /* Check state (non-secure) */
- HAB_STATE_NONSECURE = 0x66, /* Non-secure state */
- HAB_STATE_TRUSTED = 0x99, /* Trusted state */
- HAB_STATE_SECURE = 0xaa, /* Secure state */
- HAB_STATE_FAIL_SOFT = 0xcc, /* Soft fail state */
- HAB_STATE_FAIL_HARD = 0xff, /* Hard fail state (terminal) */
- HAB_STATE_NONE = 0xf0, /* No security state machine */
-};
-
-enum hab_target {
- HAB_TARGET_MEMORY = 0x0f, /* Check memory white list */
- HAB_TARGET_PERIPHERAL = 0xf0, /* Check peripheral white list*/
- HAB_TARGET_ANY = 0x55, /* Check memory & peripheral white list */
-};
-
-enum hab_assertion {
- HAB_ASSERTION_BLOCK = 0x0, /* Check if memory is authenticated after CSF */
-};
-
-struct hab_header {
- uint8_t tag;
- uint16_t len; /* len including the header */
- uint8_t par;
-} __packed;
-
-typedef enum hab_status hab_loader_callback_fn(void **start, uint32_t *bytes, const void *boot_data);
-
-struct habv4_rvt {
- struct hab_header header;
- enum hab_status (*entry)(void);
- enum hab_status (*exit)(void);
- enum hab_status (*check_target)(enum hab_target target, const void *start, uint32_t bytes);
- void *(*authenticate_image)(uint8_t cid, uint32_t ivt_offset, void **start, uint32_t *bytes, hab_loader_callback_fn *loader);
- enum hab_status (*run_dcd)(const void *dcd);
- enum hab_status (*run_csf)(const void *csf, uint8_t cid);
- enum hab_status (*assert)(enum hab_assertion assertion, const void *data, uint32_t count);
- enum hab_status (*report_event)(enum hab_status status, uint32_t index, void *event, uint32_t *bytes);
- enum hab_status (*report_status)(enum hab_config *config, enum hab_state *state);
- void (*failsafe)(void);
-} __packed;
-
-static const struct habv4_rvt *__rvt;
-
-static inline const struct habv4_rvt *habv4_get_rvt(void)
-{
- if (__rvt)
- return __rvt;
-
- if (cpu_is_mx28())
- __rvt = (void *)HABV4_RVT_IMX28;
- else if (cpu_is_mx6())
- __rvt = (void *)HABV4_RVT_IMX6;
-
- if (__rvt->header.tag != HAB_TAG_RVT) {
- pr_err("ERROR - RVT not found!\n");
- return NULL;
- }
-
- pr_info("Found RVT v%d.%d\n", __rvt->header.par >> 4,
- __rvt->header.par & 0xf);
-
- return __rvt;
-}
-
-static const char *habv4_get_status_str(enum hab_status status)
-{
- switch (status) {
- case HAB_STATUS_ANY:
- return "Match any status in report_event"; break;
- case HAB_STATUS_FAILURE:
- return "Operation failed"; break;
- case HAB_STATUS_WARNING:
- return "Operation completed with warning"; break;
- case HAB_STATUS_SUCCESS:
- return "Operation completed successfully"; break;
- }
-
- return "<unknown>";
-}
-
-static const char *habv4_get_config_str(enum hab_config config)
-{
- switch (config) {
- case HAB_CONFIG_FAB:
- return "Un-programmed IC"; break;
- case HAB_CONFIG_RETURN:
- return "Field Return IC"; break;
- case HAB_CONFIG_OPEN:
- return "Non-secure IC"; break;
- case HAB_CONFIG_CLOSED:
- return "Secure IC"; break;
- }
-
- return "<unknown>";
-}
-
-static const char *habv4_get_state_str(enum hab_state state)
-{
- switch (state) {
- case HAB_STATE_INITIAL:
- return "Initialising state (transitory)"; break;
- case HAB_STATE_CHECK:
- return "Check state (non-secure)"; break;
- case HAB_STATE_NONSECURE:
- return "Non-secure state"; break;
- case HAB_STATE_TRUSTED:
- return "Trusted state"; break;
- case HAB_STATE_SECURE:
- return "Secure state"; break;
- case HAB_STATE_FAIL_SOFT:
- return "Soft fail state"; break;
- case HAB_STATE_FAIL_HARD:
- return "Hard fail state (terminal)"; break;
- case HAB_STATE_NONE:
- return "No security state machine"; break;
- }
-
- return "<unknown>";
-}
-
-static void habv4_display_event(uint8_t *data, uint32_t len)
-{
- unsigned int i;
-
- if (data && len) {
- for (i = 0; i < len; i++) {
- if (i == 0)
- printf(" %02x", data[i]);
- else if ((i % 8) == 0)
- printf("\n %02x", data[i]);
- else if ((i % 4) == 0)
- printf(" %02x", data[i]);
- else
- printf(" %02x", data[i]);
- }
- }
- printf("\n\n");
-}
-
-int habv4_get_status(void)
-{
- const struct habv4_rvt *rvt = habv4_get_rvt();
- uint8_t data[256];
- uint32_t len = sizeof(data);
- uint32_t index = 0;
- enum hab_status status;
- enum hab_config config = 0x0;
- enum hab_state state = 0x0;
-
- if (!rvt)
- return -ENODEV;
-
- status = rvt->report_status(&config, &state);
- pr_info("Status: %s (0x%02x)\n", habv4_get_status_str(status), status);
- pr_info("Config: %s (0x%02x)\n", habv4_get_config_str(config), config);
- pr_info("State: %s (0x%02x)\n", habv4_get_state_str(state), state);
-
- if (status == HAB_STATUS_SUCCESS) {
- pr_info("No HAB Failure Events Found!\n\n");
- return 0;
- }
-
- while (rvt->report_event(HAB_STATUS_FAILURE, index, data, &len) == HAB_STATUS_SUCCESS) {
- printf("-------- HAB Event %d --------\n"
- "event data:\n", index);
-
- habv4_display_event(data, len);
- len = sizeof(data);
- index++;
- }
-
- /* Check reason for stopping */
- if (rvt->report_event(HAB_STATUS_ANY, index, NULL, &len) == HAB_STATUS_SUCCESS)
- pr_err("ERROR: Recompile with larger event data buffer (at least %d bytes)\n\n", len);
-
- return -EPERM;
-}