diff options
Diffstat (limited to 'boot_control.c')
| -rw-r--r-- | boot_control.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/boot_control.c b/boot_control.c index 58edf5e..6fa066d 100644 --- a/boot_control.c +++ b/boot_control.c @@ -38,11 +38,13 @@ #include <sys/stat.h> #include <fcntl.h> #include <limits.h> +#include <cutils/properties.h> #include "gpt-utils.h" #define BOOTDEV_DIR "/dev/block/bootdevice/by-name" #define BOOT_IMG_PTN_NAME "boot" #define LUN_NAME_END_LOC 14 +#define BOOT_SLOT_PROP "ro.boot.slot_suffix" const char *slot_suffix_arr[] = { AB_SLOT_A_SUFFIX, @@ -260,7 +262,7 @@ error: unsigned get_current_slot(struct boot_control_module *module) { uint32_t num_slots = 0; - char bootPartition[MAX_GPT_NAME_SIZE + 1]; + char bootSlotProp[PROPERTY_VALUE_MAX] = {'\0'}; unsigned i = 0; if (!module) { ALOGE("%s: Invalid argument", __func__); @@ -271,16 +273,19 @@ unsigned get_current_slot(struct boot_control_module *module) //Slot 0 is the only slot around. return 0; } + property_get(BOOT_SLOT_PROP, bootSlotProp, "N/A"); + if (!strncmp(bootSlotProp, "N/A", strlen("N/A"))) { + ALOGE("%s: Unable to read boot slot property", + __func__); + goto error; + } //Iterate through a list of partitons named as boot+suffix //and see which one is currently active. for (i = 0; slot_suffix_arr[i] != NULL ; i++) { - memset(bootPartition, '\0', sizeof(bootPartition)); - snprintf(bootPartition, sizeof(bootPartition) - 1, - "boot%s", - slot_suffix_arr[i]); - if (get_partition_attribute(bootPartition, - ATTR_SLOT_ACTIVE) == 1) - return i; + if (!strncmp(bootSlotProp, + slot_suffix_arr[i], + strlen(slot_suffix_arr[i]))) + return i; } error: //The HAL spec requires that we return a number between |