On 01/02/2023 11:06, Nickle Wang via groups.io wrote:
Thanks for catching this. To prevent the change to data structure, would you suggest me to create new interface in EFI_HTTP_PROTOCOL and disable TLS host verify?
Adding an interface to EFI_HTTP_PROTOCOL would also break the ABI by changing the layout of a data structure defined in the UEFI specification, and so can't be done.
I took a quick look through Http.h and I can't immediately see any way you can convey the information you want without making a breaking change. There are no flags fields (that could be extended with extra flags in the same memory slot), no structure version number fields (that could allow structures to be extended, subject to a version number check), and no general-purpose "additional information" extension mechanism besides the one for passing arbitrary HTTP headers.
I suspect you'll need to either make a new protocol (lots of work, very ugly) or find some sideband mechanism you can use to work around the problem, like a PCD to globally enable/disable host verification.
It may be worth waiting for one of the HttpDxe maintainers to offer an opinion on this, since I am totally unfamiliar with this part of the codebase.
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