summaryrefslogtreecommitdiffstats
path: root/bootloader_message
diff options
context:
space:
mode:
authorTianjie Xu <xunchang@google.com>2019-12-17 01:07:27 +0100
committerTianjie Xu <xunchang@google.com>2019-12-17 01:07:27 +0100
commitdc4d2a70db40a302cb7001ddbc41816e7187d5c5 (patch)
tree81fbf2ab5dcc564690444352ce1bd68e36909689 /bootloader_message
parentMerge "minui: add ARGB_8888 format" (diff)
downloadandroid_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar.gz
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar.bz2
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar.lz
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar.xz
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.tar.zst
android_bootable_recovery-dc4d2a70db40a302cb7001ddbc41816e7187d5c5.zip
Diffstat (limited to 'bootloader_message')
-rw-r--r--bootloader_message/include/bootloader_message/bootloader_message.h102
1 files changed, 0 insertions, 102 deletions
diff --git a/bootloader_message/include/bootloader_message/bootloader_message.h b/bootloader_message/include/bootloader_message/bootloader_message.h
index 9a482d423..e4cf09b22 100644
--- a/bootloader_message/include/bootloader_message/bootloader_message.h
+++ b/bootloader_message/include/bootloader_message/bootloader_message.h
@@ -83,108 +83,6 @@ struct bootloader_message {
char reserved[1184];
};
-/**
- * We must be cautious when changing the bootloader_message struct size,
- * because A/B-specific fields may end up with different offsets.
- */
-#if (__STDC_VERSION__ >= 201112L) || defined(__cplusplus)
-static_assert(sizeof(struct bootloader_message) == 2048,
- "struct bootloader_message size changes, which may break A/B devices");
-#endif
-
-/**
- * The A/B-specific bootloader message structure (4-KiB).
- *
- * We separate A/B boot control metadata from the regular bootloader
- * message struct and keep it here. Everything that's A/B-specific
- * stays after struct bootloader_message, which should be managed by
- * the A/B-bootloader or boot control HAL.
- *
- * The slot_suffix field is used for A/B implementations where the
- * bootloader does not set the androidboot.ro.boot.slot_suffix kernel
- * commandline parameter. This is used by fs_mgr to mount /system and
- * other partitions with the slotselect flag set in fstab. A/B
- * implementations are free to use all 32 bytes and may store private
- * data past the first NUL-byte in this field. It is encouraged, but
- * not mandatory, to use 'struct bootloader_control' described below.
- *
- * The update_channel field is used to store the Omaha update channel
- * if update_engine is compiled with Omaha support.
- */
-struct bootloader_message_ab {
- struct bootloader_message message;
- char slot_suffix[32];
- char update_channel[128];
-
- // Round up the entire struct to 4096-byte.
- char reserved[1888];
-};
-
-/**
- * Be cautious about the struct size change, in case we put anything post
- * bootloader_message_ab struct (b/29159185).
- */
-#if (__STDC_VERSION__ >= 201112L) || defined(__cplusplus)
-static_assert(sizeof(struct bootloader_message_ab) == 4096,
- "struct bootloader_message_ab size changes");
-#endif
-
-#define BOOT_CTRL_MAGIC 0x42414342 /* Bootloader Control AB */
-#define BOOT_CTRL_VERSION 1
-
-struct slot_metadata {
- // Slot priority with 15 meaning highest priority, 1 lowest
- // priority and 0 the slot is unbootable.
- uint8_t priority : 4;
- // Number of times left attempting to boot this slot.
- uint8_t tries_remaining : 3;
- // 1 if this slot has booted successfully, 0 otherwise.
- uint8_t successful_boot : 1;
- // 1 if this slot is corrupted from a dm-verity corruption, 0
- // otherwise.
- uint8_t verity_corrupted : 1;
- // Reserved for further use.
- uint8_t reserved : 7;
-} __attribute__((packed));
-
-/* Bootloader Control AB
- *
- * This struct can be used to manage A/B metadata. It is designed to
- * be put in the 'slot_suffix' field of the 'bootloader_message'
- * structure described above. It is encouraged to use the
- * 'bootloader_control' structure to store the A/B metadata, but not
- * mandatory.
- */
-struct bootloader_control {
- // NUL terminated active slot suffix.
- char slot_suffix[4];
- // Bootloader Control AB magic number (see BOOT_CTRL_MAGIC).
- uint32_t magic;
- // Version of struct being used (see BOOT_CTRL_VERSION).
- uint8_t version;
- // Number of slots being managed.
- uint8_t nb_slot : 3;
- // Number of times left attempting to boot recovery.
- uint8_t recovery_tries_remaining : 3;
- // Status of any pending snapshot merge of dynamic partitions.
- uint8_t merge_status : 3;
- // Ensure 4-bytes alignment for slot_info field.
- uint8_t reserved0[1];
- // Per-slot information. Up to 4 slots.
- struct slot_metadata slot_info[4];
- // Reserved for further use.
- uint8_t reserved1[8];
- // CRC32 of all 28 bytes preceding this field (little endian
- // format).
- uint32_t crc32_le;
-} __attribute__((packed));
-
-#if (__STDC_VERSION__ >= 201112L) || defined(__cplusplus)
-static_assert(sizeof(struct bootloader_control) ==
- sizeof(((struct bootloader_message_ab *)0)->slot_suffix),
- "struct bootloader_control has wrong size");
-#endif
-
// Holds Virtual A/B merge status information. Current version is 1. New fields
// must be added to the end.
struct misc_virtual_ab_message {