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android: verity: Fix environment variable "bootargs" override 

Change-Id: Idd079d8773f536928d02f1b32bb562d5540ee85a
Signed-off-by: Zhangbin Tong <zebulun.tong@rock-chips.com>
This commit is contained in:
Zhangbin Tong 2018-08-16 15:31:09 +08:00 committed by Jianhong Chen
parent 270cc02165
commit affcebcd8f
1 changed files with 28 additions and 1 deletions
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29
common/android_bootloader.c
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@ -505,10 +505,37 @@ static AvbSlotVerifyResult android_slot_verify(char *boot_partname,
if (verify_result == AVB_SLOT_VERIFY_RESULT_OK ||
verify_result == AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED ||
(unlocked & LOCK_MASK)) {
int len = 0;
char *bootargs, *newbootargs;
if (*slot_data[0]->cmdline) {
debug("Kernel command line: %s\n", slot_data[0]->cmdline);
len += strlen(slot_data[0]->cmdline);
}
bootargs = env_get("bootargs");
if (bootargs)
len += strlen(bootargs);
newbootargs = malloc(len + 2);
if (!newbootargs) {
puts("Error: malloc in android_slot_verify failed!\n");
return AVB_SLOT_VERIFY_RESULT_ERROR_OOM;
}
*newbootargs = '\0';
if (bootargs) {
strcpy(newbootargs, bootargs);
strcat(newbootargs, " ");
}
if (*slot_data[0]->cmdline)
strcat(newbootargs, slot_data[0]->cmdline);
env_set("bootargs", newbootargs);
memcpy((uint8_t *)load_address,
slot_data[0]->loaded_partitions->data,
slot_data[0]->loaded_partitions->data_size);
env_set("bootargs", slot_data[0]->cmdline);
/* ... and decrement tries remaining, if applicable. */
if (!ab_data.slots[slot_index_to_boot].successful_boot &&