Ceph » rgw

When using CloudMounter on macOS via S3 with Ceph Rados, all requests fail with error SignatureDoesNotMatch.

When CloudMounter if configured with Amazon AWS, same requests work properly.

Other Windows and macOS clients that we tried, did not have problem with Rados.

When comparing the HTTP traffic of all, I found out that CloudMounter does not set HTTP header x-amz-content-sha256.

GET /mk-s3fs?location= HTTP/1.1
Host: rados.topit.ng
Accept-Encoding: gzip, deflate
Connection: keep-alive
Accept: */*
User-Agent: aws-sdk-iOS/2.6.0 Unknown/Unknown en_SI
Authorization: AWS4-HMAC-SHA256 Credential=59DVM5AM2BEFR5A7ZL0J/20181022/us-east-1/s3/aws4_request, SignedHeaders=host;user-agent;x-amz-date, Signature=d6533eca0cbb817e796b5b9d35a8f41ceb0a3914714b3ff1fb75242f74cad686
Accept-Language: en-us
X-Amz-Date: 20181022T124039Z

Value for content SHA256 is expected to be SHA of an empty string then: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855.

Rados GW replied with this following response:

HTTP/1.1 403 Forbidden
Content-Length: 194
x-amz-request-id: tx000000000000000000003-005bcdc547-5e7d-default
Accept-Ranges: bytes
Content-Type: application/xml
Date: Mon, 22 Oct 2018 12:40:39 GMT
Connection: Keep-Alive

<?xml version="1.0" encoding="UTF-8"?>
<Error>
    <Code>SignatureDoesNotMatch</Code>
    <RequestId>tx000000000000000000003-005bcdc547-5e7d-default</RequestId>
    <HostId>5e7d-default-default</HostId>
</Error>