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Merge "Fix a bug where small manifest isn't read" am: 62582263a2

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Original change: https://android-review.googlesource.com/c/platform/development/+/1792911

Change-Id: I30fa5befab82f758f2d7302800c4b3bc18bc7869
This commit is contained in:
Kelvin Zhang
2021-08-12 18:15:48 +00:00
committed by Automerger Merge Worker
parent 85e6dea009 62582263a2
commit 6750cd8b02
1 changed files with 15 additions and 13 deletions
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28
tools/ota_analysis/src/services/payload.js
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@@ -72,18 +72,20 @@ class OTAPayloadBlobWriter extends zip.Writer {
// Once the prefixLength is non-zero, the address of manifest and signature
// become known and can be read in. Otherwise the header needs to be read
// in first to determine the prefixLength.
if (this.prefixLength > 0) {
if (this.offset >= this.prefixLength) {
await this.payload.readManifest(this.blob)
await this.payload.readSignature(this.blob)
}
} else if (this.offset >= _PAYLOAD_HEADER_SIZE) {
if (this.offset >= _PAYLOAD_HEADER_SIZE) {
await this.payload.readHeader(this.blob)
this.prefixLength =
_PAYLOAD_HEADER_SIZE
+ this.payload.manifest_len
+ this.payload.metadata_signature_len
return
console.log(`Computed metadata length: ${this.prefixLength}`);
}
if (this.prefixLength > 0) {
console.log(`${this.offset}/${this.prefixLength}`);
if (this.offset >= this.prefixLength) {
await this.payload.readManifest(this.blob)
await this.payload.readSignature(this.blob)
}
}
// The prefix has everything we need (header, manifest, signature). Once
// the offset is beyond the prefix, no need to move on.
@@ -159,12 +161,12 @@ export class Payload {
this.buffer.slice(this.cursor, this.cursor + size))
if (typeof view.getBigUint64 !== "function") {
view.getBigUint64 =
function(offset) {
const a = BigInt(view.getUint32(offset))
const b = BigInt(view.getUint32(offset + 4))
const bigNumber = a * 4294967296n + b
return bigNumber
}
function (offset) {
const a = BigInt(view.getUint32(offset))
const b = BigInt(view.getUint32(offset + 4))
const bigNumber = a * 4294967296n + b
return bigNumber
}
}
this.cursor += size
switch (size) {