static int
imgmgr_state_confirm(void)
{
int rc;
/* Confirm disallowed if a test is pending. */
if (imgmgr_state_any_pending()) {
return MGMT_ERR_EBADSTATE;
}
/* Confirm the unified image or loader in slot 0. */
rc = boot_set_confirmed();
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
/* If a split app in slot 1 is active, confirm it as well. */
if (split_app_active_get()) {
rc = split_write_split(SPLIT_MODE_APP);
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
} else {
rc = split_write_split(SPLIT_MODE_LOADER);
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
}
return 0;
}
/**
* This validates and provides the loader image data
*
* @return 0 on success; nonzero on failure.
*/
int
split_app_go(void **entry, int toboot)
{
split_mode_t split_mode;
int run_app;
int rc;
if (toboot) {
split_mode = split_mode_get();
/* if we are told not to, then we don't boot an app */
if (split_mode == SPLIT_MODE_LOADER) {
return -1;
}
/* if this is a one-time test, reset the split mode */
switch (split_mode) {
case SPLIT_MODE_LOADER:
run_app = 0;
break;
case SPLIT_MODE_TEST_APP:
split_write_split(SPLIT_MODE_LOADER);
run_app = 1;
break;
case SPLIT_MODE_TEST_LOADER:
split_write_split(SPLIT_MODE_APP);
run_app = 0;
break;
case SPLIT_MODE_APP:
run_app = 1;
break;
default:
run_app = 0;
break;
}
if (!run_app) {
return -1;
}
}
rc = split_go(LOADER_IMAGE_SLOT, SPLIT_IMAGE_SLOT, entry);
if (rc != 0) {
/* Images don't match; clear split status. */
split_write_split(SPLIT_MODE_LOADER);
}
return rc;
}
int
imgmgr_state_test_slot(int slot)
{
uint32_t image_flags;
uint8_t state_flags;
int split_app_active;
int rc;
state_flags = imgmgr_state_flags(slot);
split_app_active = split_app_active_get();
/* Unconfirmed slots are always testable. A confirmed slot can only be
* tested if it is a loader in a split image setup.
*/
if (state_flags & IMGMGR_STATE_F_CONFIRMED &&
(slot != 0 || !split_app_active)) {
return MGMT_ERR_EBADSTATE;
}
rc = imgr_read_info(slot, NULL, NULL, &image_flags);
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
if (!(image_flags & IMAGE_F_NON_BOOTABLE)) {
/* Unified image or loader. */
if (!split_app_active) {
/* No change in split status. */
rc = boot_set_pending();
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
} else {
/* Currently loader + app; testing loader-only. */
rc = split_write_split(SPLIT_MODE_TEST_LOADER);
}
} else {
/* Testing split app. */
rc = split_write_split(SPLIT_MODE_TEST_APP);
if (rc != 0) {
return MGMT_ERR_EUNKNOWN;
}
}
return 0;
}
