Adapt mbedtls support for compatibility with v3, while maintaining
compatibility with v2.
Notice v3 has removed the ability to encrypt with pubkey and
decrypt with privkey. Openssl still has it, atm with v3 these
fall back to encrypt with privkey and decrypt with pubkey.
> The RSA module no longer supports private-key operations with the
> public key or vice versa. As a consequence, RSA operation functions
> no longer have a mode parameter. If you were calling RSA operations
> with the normal mode (public key for verification or encryption,
> private key for signature or decryption), remove the
> MBEDTLS_MODE_PUBLIC or MBEDTLS_MODE_PRIVATE argument. If you were
> calling RSA operations with the wrong mode, which rarely makes sense
>from a security perspective, this is no longer supported.
Add support for dynamically determining the CAs needed to validate server
certificates. This allows you to avoid instantiating > 120 X.509 trusted
CA certs and have them take up heap the whole time.
Works for both openssl and mbedtls.
See READMEs/README.jit-trust.md for the documentation
You likely want the next patch for http redirect enhancements as well.
Now the generic lws_system blobs can cover client certs + key, let's
add support for applying one of the blob sets to a specific client
connection (rather than doing it via the vhost).
Some toolchains are in some C++ version mode that objects to redefinition
of a typedef even to the same thing.
Shift a couple for function declarations in the mbedtls wrapper
part so they can piggyback on just the one typedef for their
args.
This just supports "http/1.1" alpn and lets the client know it
can use keepalive earlier if it affirmitively negotiated
"http/1.1" on alpn.
mbedTLS wrapper needed a small adaptation to also allow
per-client-ssl control of the alpn negotiation list.
This adds a single api on lws that allows querying elements from the
peer certificate on a connection.
The api works the same regardless of the TLS backend.
1) The original wrapper logic for accounting for partial
sends on mbedtls is broken... adapt it
2) mbedtls has an additional restriction you MUST come
back to retry with EXACTLY the unsent part that you
originally asked for, or it loses coherency in the TLS
tunnel.
3) the wrapper is inconsistent between read WANT state
dynamically reported from mbedtls apis and the
SSL_want() api results. Check both on read.
- introduce lib/tls/mbedtls lib/tls/openssl
- move wrapper into lib/tls/mbedtls/wrapper
- introduce private helpers to hide backend
This patch doesn't replace or remove the wrapper, it moves it
to lib/tls/mbedtls/wrapper.
But it should be now that the ONLY functions directly consuming
wrapper apis are isolated in
- lib/tls/mbedtls/client.c (180 lines)
- lib/tls/mbedtls/server.c (317 lines)
- lib/tls/mbedtls/ssl.c (325 lines)
In particular there are no uses of openssl or mbedtls-related
constants outside of ./lib/tls any more.
