Buffer contents.

Amount of bytes present in buffer.

Current reading offset into the buffer (circular)

Parser flags.

Parser is currently inside an encrypted tag.

Parser has received and verified signature.

Parser has received bootloader upgrade tag.

State of the GBL parser state machine.

AES-CCM decryption (= AES-CTR) context.

SHA256 hashing context.

Total length of the tag currently being parsed.

Current offset into tag being parsed.

Total length of current encrypted data block.

Offset into current encrypted data block.

Current address the image needs to be written to.

Current offset of metadata/bootloader being handled (starts at 0)

Withheld application data.

Withheld bootloader upgrade data during app parsing.

Withheld bootloader upgrade data during bootloader parsing.

Running CRC-32 over the incoming GBL file.

Context for custom tag.

Current tag order.

Reserved flags.