QUIC API Overview: Add SSL API triage list

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19769)
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Hugo Landau 2022-12-08 10:11:21 +00:00 committed by Pauli
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Behaviour of SSL functions on QUIC SSL objects
==============================================
This document is a companion to the [QUIC API Overview](./quic-api.md) which
lists all SSL functions and controls and notes their behaviour with QUIC SSL
objects.
The Category column is as follows:
- **Global**:
These API items do not relate to SSL objects. They may be stateless or may
relate only to global state.
Can also be used for APIs implemented only in terms of other public libssl APIs.
- **Object**:
Object management APIs. Some of these may require QUIC-specific implementation.
- **HL**: Handshake layer API.
These calls should generally be dispatched to the handshake layer, unless
they are not applicable to QUIC. Modifications inside the handshake layer
for the QUIC case may or may not be required.
- **CSSM**: Connection/Stream State Machine. API related to lifecycle of a
connection or stream. Needs QUIC-specific implementation.
- **ADP**: App Data Path. Application-side data path API. QUIC-specific
implementation.
- **NDP**: Net Data Path. Network-side data path control API. Also includes I/O
ticking and timeout handling.
- **RL**: Record layer related API. If these API items only relate to the TLS
record layer, they must be disabled for QUIC; if they are also relevant to the
QUIC record layer, they will require QUIC-specific implementation.
- **Async**: Relates to the async functionality.
- **0-RTT**: Relates to early data/0-RTT functionality.
- **Special**: Other calls which defy classification.
The Semantics column is as follows:
- **🟩U**: Unchanged. The semantics of the API are not changed for QUIC.
- **🟧C**: Changed. The semantics of the API are changed for QUIC.
- **🟦N**: New. The API is new for QUIC.
- **🟥TBD**: Yet to be determined if semantic changes will be required.
The Applicability column is as follows:
- **🟦U**: Unrelated. Not applicable to QUIC — fully unrelated (e.g. functions for
other SSL methods).
- **🟥FC**: Not applicable to QUIC (or not currently supported) — fail closed.
- **🟧NO**: Not applicable to QUIC (nor not currently supported) — no-op.
- **🟩A**: Applicable.
The Implementation Requirements column is as follows:
- **🟩NC**: No changes are expected to be needed (where marked **\***, dispatch
to handshake layer).
**Note**: Where this value is used with an applicability of **FC** or **NO**,
this means that the desired behaviour is already an emergent consequence of the
existing code.
- **🟨C**: Modifications are expected to be needed (where marked **\***,
dispatch to handshake layer with changes inside the handshake layer).
- **🟧QSI**: QUIC specific implementation.
- **🟥QSA**: QUIC specific API.
The Status column is as follows:
- **🔴Pending Triage**: Have not determined the classification of this API item yet.
- **🟠Design TBD**: It has not yet been determined how this API item will work for
QUIC.
- **🟡TODO**: It has been determined how this API item should work for QUIC but it
has not yet been implemented.
- **🟢Done**: No further work is anticipated to be needed for this API item.
Notes:
- †1: Must restrict which ciphers can be used with QUIC; otherwise, no changes.
- †2: ALPN usage must be mandated; otherwise, no changes.
- †3: NPN usage should be forced off as it should never be used with QUIC;
otherwise, no changes.
- †4: Controls needing changes are listed separately.
- †5: TLS compression and renegotiation must not be used with QUIC, but these
features are already forbidden in
TLS 1.3, which is a requirement for QUIC, thus no changes should be needed.
- †6: Callback specified is called for handshake layer messages (TLSv1.3).
- †7: Tickets are issued using `NEW_TOKEN` frames in QUIC and this will
require handshake layer changes. However these APIs as such do not require
changes.
- †8: Use of post-handshake authentication is prohibited by QUIC.
- †9: QUIC always uses AES-128-GCM initially. We need to determine when and
what ciphers we report as being in use.
- †10: Not supporting async for now.
| API Item | Cat. | Sema. | Appl. | Impl. Req. | Status |
|----------|----------|-----------|---------------|----------------|--------|
| **⇒ Global Information and Functions** | |
| `OSSL_default_cipher_list` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `OSSL_default_ciphersuites` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `ERR_load_SSL_strings` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `OPENSSL_init_ssl` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `OPENSSL_cipher_name` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_alert_desc_string` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_alert_desc_string_long` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_alert_type_string` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_alert_type_string_long` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_extension_supported` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_add_ssl_module` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_test_functions` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_select_next_proto` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| **⇒ Methods** | |
| `SSLv3_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSLv3_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSLv3_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLS_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLS_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLS_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_1_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_1_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_1_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_2_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_2_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `TLSv1_2_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLS_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLS_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLS_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_2_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_2_client_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLSv1_2_server_method` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `OSSL_QUIC_client_method` | Global | 🟩U | 🟦U | 🟥QSA | 🟢Done |
| `OSSL_QUIC_client_thread_method` | Global | 🟩U | 🟦U | 🟥QSA | 🟠Design TBD |
| `OSSL_QUIC_server_method` | Global | 🟩U | 🟦U | 🟥QSA | 🟠Design TBD |
| **⇒ Instantiation** | |
| `BIO_f_ssl` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `BIO_new_ssl` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_new` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_new_ex` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_up_ref` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_free` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_new` | Object | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_dup` | Object | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_up_ref` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_free` | Object | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_is_dtls` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_get_ex_data` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_set_ex_data` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_get_ex_data` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_set_ex_data` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_get_SSL_CTX` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_set_SSL_CTX` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| **⇒ Method Manipulation** | |
| `SSL_CTX_get_ssl_method` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_get_ssl_method` | Object | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_CTX_set_ssl_method` | Object | 🟥TBD | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_set_ssl_method` | Object | 🟥TBD | 🟩A | 🟧QSI | 🟠Design TBD |
| **⇒ SRTP** | |
| `SSL_get_selected_srtp_profile` | HL | 🟩U | 🟥FC | 🟨C\* | 🟡TODO |
| `SSL_get_srtp_profiles` | HL | 🟩U | 🟥FC | 🟨C\* | 🟡TODO |
| `SSL_CTX_set_tlsext_use_srtp` | HL | 🟩U | 🟥FC | 🟨C\* | 🟡TODO |
| `SSL_set_tlsext_use_srtp` | HL | 🟩U | 🟥FC | 🟨C\* | 🟡TODO |
| **⇒ Ciphersuite Configuration** | |
| `SSL_CTX_set_cipher_list` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_CTX_set_ciphersuites` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_CTX_get_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_set_ciphersuites` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_get1_supported_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_bytes_to_cipher_list` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_get_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_get_cipher_list` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| `SSL_set_cipher_list` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟡TODO |
| **⇒ Negotiated Ciphersuite Queries** | |
| `SSL_get_current_cipher` | HL | 🟩U | 🟩A | 🟨C\* †9 | 🟠Design TBD |
| `SSL_get_pending_cipher` | HL | 🟩U | 🟩A | 🟨C\* †9 | 🟠Design TBD |
| `SSL_get_shared_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †9 | 🟠Design TBD |
| `SSL_get_client_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †9 | 🟠Design TBD |
| `SSL_get_current_compression` | HL | 🟩U | 🟩A | 🟩HLNC | 🟢Done |
| `SSL_get_current_expansion` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_shared_sigalgs` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_sigalgs` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_peer_signature_nid` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_peer_signature_type_nid` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_signature_nid` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_signature_type_nid` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ ALPN** | †2 |
| `SSL_SESSION_set1_alpn_selected` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| `SSL_SESSION_get0_alpn_selected` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| `SSL_CTX_set_alpn_select_cb` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| `SSL_set_alpn_protos` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| `SSL_get0_alpn_selected` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| `SSL_CTX_set_alpn_protos` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟡TODO |
| **⇒ NPN** | †3 |
| `SSL_CTX_set_next_proto_select_cb` | HL | 🟩U | 🟥FC | 🟨C\* †3 | 🟡TODO |
| `SSL_CTX_set_next_protos_advertised_cb` | HL | 🟩U | 🟥FC | 🟨C\* †3 | 🟡TODO |
| `SSL_get0_next_proto_negotiated` | HL | 🟩U | 🟥FC | 🟨C\* †3 | 🟡TODO |
| **⇒ Narrow Waist Interface** | †4 |
| `SSL_CTX_ctrl` | Object | 🟩U | 🟩A | 🟩NC\* †4 | 🟢Done |
| `SSL_ctrl` | Object | 🟩U | 🟩A | 🟩NC\* †4 | 🟢Done |
| `SSL_CTX_callback_ctrl` | Object | 🟩U | 🟩A | 🟩NC\* †4 | 🟢Done |
| `SSL_callback_ctrl` | Object | 🟩U | 🟩A | 🟩NC\* †4 | 🟢Done |
| **⇒ Miscellaneous Accessors** | |
| `SSL_get_server_random` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_client_random` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_finished` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_peer_finished` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Ciphersuite Information** | |
| `SSL_CIPHER_description` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_find` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_auth_nid` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_bits` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_cipher_nid` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_digest_nid` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_handshake_digest` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_id` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_kx_nid` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_name` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_protocol_id` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_get_version` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_is_aead` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CIPHER_standard_name` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_group_to_name` | Global | 🟩U | 🟦U | 🟩NC\* | 🟢Done |
| **⇒ Version Queries** | |
| `SSL_get_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Certificate Chain Management** | |
| `SSL_get_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_certificate_chain_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_certificate_chain_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_certificate_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_load_verify_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_load_verify_dir` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_load_verify_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_load_verify_locations` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `CertSSL_use_cert_and_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_certificate_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_PrivateKey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_PrivateKey_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_PrivateKey_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_RSAPrivateKey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_RSAPrivateKey_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_use_RSAPrivateKey_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_verify_dir` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_verify_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_verify_paths` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_verify_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_cert_and_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_certificate_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_certificate_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_PrivateKey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_PrivateKey_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_PrivateKey_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_RSAPrivateKey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_RSAPrivateKey_ASN1` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_RSAPrivateKey_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_check_chain` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_check_private_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_check_private_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add_client_CA` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add1_to_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add_dir_cert_subjects_to_stack` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add_file_cert_subjects_to_stack` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add_store_cert_subjects_to_stack` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_load_client_CA_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_load_client_CA_file_ex` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_dup_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set0_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_client_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_add_client_CA` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_privatekey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_cert_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set1_cert_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_client_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_add1_to_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set0_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_client_cert_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_default_passwd_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_default_passwd_cb_userdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_client_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_privatekey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Certificate Compression** | |
| `SSL_CTX_set1_cert_comp_preference` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set1_cert_comp_preference` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_compress_certs` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_compress_certs` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set1_compressed_cert` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set1_compressed_cert` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get1_compressed_cert` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get1_compressed_cert` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Certificate Verification** | |
| `SSL_set1_host` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_add1_host` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_hostflags` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_verify` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_verify` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_verify_depth` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_verify_result` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_verify_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_verify_depth` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_verify_mode` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_verify_result` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_peer_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_peer_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_verified_chain` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get1_peer_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_peer_cert_chain` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_peer_certificate` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_certs_clear` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_verify_mode` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_verify_depth` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_verify_depth` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_peername` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set1_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set1_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_purpose` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_purpose` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_trust` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_trust` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ PSK** | |
| `SSL_use_psk_identity_hint` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_psk_identity_hint` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_psk_client_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_psk_find_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_psk_server_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_psk_use_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_psk_identity` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_psk_identity_hint` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ SRP** | |
| `SSL_SRP_CTX_init` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_SRP_CTX_init` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_SRP_CTX_free` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SRP_CTX_free` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_client_pwd_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_password` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_srp_g` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_cb_arg` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_srp_N` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_username_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_srp_username` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_srp_server_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_srp_userinfo` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_srp_server_param_with_username` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_strength` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_verify_param_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_srp_server_param_pw` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_srp_username` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SRP_Calc_A_param` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ DANE** | |
| `SSL_CTX_dane_enable` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_dane_tlsa` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_dane_set_flags` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_dane_set_flags` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_dane_clear_flags` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_dane_clear_flags` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_dane` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_dane_enable` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_dane_authority` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_dane_mtype_set` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_dane_tlsa_add` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Certificate Transparency** | |
| `SSL_CTX_enable_ct` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_ct_is_enabled` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_ctlog_list_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_ctlog_list_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_ct_validation_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set0_ctlog_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_ctlog_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_enable_ct` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_ct_is_enabled` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_peer_scts` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_ct_validation_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Compression** | |
| `SSL_COMP_add_compression_method` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| `SSL_COMP_get0_name` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| `SSL_COMP_get_compression_methods` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| `SSL_COMP_get_id` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| `SSL_COMP_get_name` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| `SSL_COMP_set0_compression_methods` | HL | 🟩U | 🟩A | 🟩NC\* †5 | 🟢Done |
| **⇒ Exporters** | |
| `SSL_export_keying_material` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_export_keying_material_early` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Renegotiation** | |
| `SSL_renegotiate` | HL | 🟩U | 🟥FC | 🟩NC\* †5 | 🟢Done |
| `SSL_renegotiate_abbreviated` | HL | 🟩U | 🟥FC | 🟩NC\* †5 | 🟢Done |
| `SSL_renegotiate_pending` | HL | 🟩U | 🟧NO | 🟩NC\* †5 | 🟢Done |
| **⇒ Options** | |
| `SSL_CTX_clear_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_CTX_set_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_CTX_get_options` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_clear_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_set_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_get_options` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Configuration** | |
| `SSL_CONF_CTX_new` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_free` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_set_ssl` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_set_ssl_ctx` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_set1_prefix` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_set_flags` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_clear_flags` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_CTX_finish` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_cmd` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_cmd_argv` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CONF_cmd_value_type` | Global | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_config` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_config` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Callbacks** | |
| `SSL_CTX_set_cert_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_cert_store` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_cert_verify_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_client_CA_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_client_cert_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_client_cert_engine` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_client_hello_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_cookie_generate_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_cookie_verify_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_passwd_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_passwd_cb_userdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_default_read_buffer_len` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_info_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_info_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_info_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_info_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_msg_callback` | HL | 🟩U | 🟩A | 🟩NC\* †6 | 🟢Done |
| `SSL_set_cert_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_default_passwd_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_default_passwd_cb_userdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_default_passwd_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_default_passwd_cb_userdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_keylog_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_keylog_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_psk_client_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_psk_find_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_psk_server_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_psk_use_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_verify_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_not_resumable_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_not_resumable_session_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_session_secret_cb` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| **⇒ Session Management** | |
| `d2i_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `i2d_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `PEM_read_bio_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `PEM_read_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `PEM_write_bio_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `PEM_write_SSL_SESSION` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_new` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_up_ref` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_dup` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_free` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_print` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_print_fp` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_print_keylog` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_cipher` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set_cipher` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_hostname` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set1_hostname` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_id_context` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set1_id_context` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_peer` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_ticket` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_ticket_appdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set1_ticket_appdata` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_has_ticket` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_protocol_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set_protocol_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_compress_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set1_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_time` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set_time` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_timeout` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set_timeout` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get0_hostname` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_set1_hostname` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_master_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_master_key` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_is_resumable` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_max_early_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_max_early_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_max_fragment_length` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_SESSION_get_ticket_lifetime_hint` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_add_session` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_remove_session` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get1_session` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_session` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_session` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_get_get_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_set_get_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_get_new_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_set_new_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_get_remove_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sess_set_remove_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_session_id_context` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_session_id_context` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_generate_session_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_generate_session_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_has_matching_session_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_flush_sessions` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_session_reused` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_timeout` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_timeout` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_default_timeout` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_sessions` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Session Ticket Management** | |
| `SSL_get_num_tickets` | HL | 🟩U | 🟩A | 🟩NC\* †7 | 🟢Done |
| `SSL_set_num_tickets` | HL | 🟩U | 🟩A | 🟩NC\* †7 | 🟢Done |
| `SSL_CTX_get_num_tickets` | HL | 🟩U | 🟩A | 🟩NC\* †7 | 🟢Done |
| `SSL_CTX_set_num_tickets` | HL | 🟩U | 🟩A | 🟩NC\* †7 | 🟢Done |
| `SSL_new_session_ticket` | HL | 🟩U | 🟩A | 🟨C\* | 🟡TODO |
| `SSL_set_session_ticket_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_session_ticket_ext_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_tlsext_ticket_key_evp_cb` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Security Levels** | |
| `SSL_CTX_get_security_level` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_security_level` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_security_level` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_security_level` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get_security_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_security_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SS_get_security_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SS_set_security_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_get0_security_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set0_security_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get0_security_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set0_security_ex_data` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Custom Extensions** | |
| `SSL_CTX_add_custom_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_add_client_custom_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_add_server_custom_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_has_client_custom_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Early ClientHello Processing** | |
| `SSL_client_hello_get_extension_order` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_ciphers` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_compression_methods` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_ext` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_legacy_version` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_random` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get0_session_id` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_get1_extensions_present` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_client_hello_isv2` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ SNI** | |
| `SSL_get_servername` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_servername_type` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Server Info** | |
| `SSL_CTX_use_serverinfo` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_serverinfo_ex` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_use_serverinfo_file` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Post-Handshake Authentication** | |
| `SSL_verify_client_post_handshake` | HL | 🟩U | 🟥FC | 🟨C* †8 | 🟡TODO |
| `SSL_CTX_set_post_handshake_auth` | HL | 🟩U | 🟥FC | 🟨C* †8 | 🟡TODO |
| `SSL_set_post_handshake_auth` | HL | 🟩U | 🟥FC | 🟨C* †8 | 🟡TODO |
| **⇒ DH Parameters** | |
| `SSL_CTX_set_dh_auto` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_dh_auto` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set0_tmp_dh_pkey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set0_tmp_dh_pkey` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_tmp_dh_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_tmp_dh_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_CTX_set_tmp_dh` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_tmp_dh` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ State Queries** | |
| `SSL_in_init` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_in_before` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_is_init_finished` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_state` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_rstate_string` | HL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_rstate_string_long` | HL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_state_string` | HL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_state_string_long` | HL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| **⇒ Data Path and CSSM** | |
| `SSL_set_connect_state` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set_accept_state` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_is_server` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_peek` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_peek_ex` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_read` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_read_ex` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_write` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_write_ex` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_sendfile` | ADP | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_pending` | ADP | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_has_pending` | ADP | TBD | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_accept` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_connect` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_do_handshake` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set0_wbio` | NDP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set0_rbio` | NDP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set_bio` | NDP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_get_wbio` | NDP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_get_rbio` | NDP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_get_error` | NDP | 🟩U | 🟩A | 🟧QSI | Done — needs review |
| `SSL_get_rfd` | NDP | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_get_wfd` | NDP | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_get_fd` | NDP | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_set_rfd` | NDP | 🟧C | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_set_wfd` | NDP | 🟧C | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_set_fd` | NDP | 🟩U | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_key_update` | RL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_get_key_update_type` | RL | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_clear` (connection) | CSSM | TBD | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_clear` (stream) | CSSM | TBD | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_shutdown` | CSSM | 🟧C | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_want` | ADP | 🟧C | 🟩A | 🟧QSI | 🟡TODO |
| `BIO_new_ssl_connect` | Global | 🟩U | 🟩A | 🟧QSI | 🟡TODO |
| `BIO_new_buffer_ssl_connect` | Global | 🟩U | 🟦U | 🟧QSI | 🟡TODO |
| `SSL_get_shutdown` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| `SSL_set_shutdown` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟠Design TBD |
| **⇒ New APIs** | |
| `SSL_tick` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_tick_timeout` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_blocking_mode` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_blocking_mode` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_set_blocking_mode` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_rpoll_descriptor` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_wpoll_descriptor` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_want_net_read` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_want_net_write` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_initial_peer_addr` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_set_initial_peer_addr` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_shutdown_ex` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| `SSL_stream_conclude` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| `SSL_stream_reset` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| `SSL_get_stream_state` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| `SSL_get_stream_error_code` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| `SSL_get_conn_close_info` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟡TODO |
| **⇒ Currently Not Supported** | |
| `SSL_copy_session_id` | Special | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `BIO_ssl_copy_session_id` | Special | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_quiet_shutdown` | CSSM | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_get_quiet_shutdown` | CSSM | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_set_quiet_shutdown` | CSSM | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_get_quiet_shutdown` | CSSM | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_CTX_set_ssl_version` | HL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| **⇒ Async** | |
| `SSL_CTX_set_async_callback` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_set_async_callback` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_CTX_set_async_callback_arg` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_set_async_callback_arg` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_waiting_for_async` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_get_async_status` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_get_all_async_fds` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| `SSL_get_changed_async_fds` | Async | 🟩U | 🟧NO | 🟩NC* †10 | 🟢Done |
| **⇒ Readahead** | |
| `SSL_CTX_get_default_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_CTX_get_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_CTX_set_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_get_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_set_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_CTX_set_default_read_buffer_len` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| `SSL_set_default_read_buffer_len` | RL | 🟩U | 🟧NO | 🟨C* | 🟡TODO |
| **⇒ Record Padding and Fragmentation** | |
| `SSL_CTX_set_record_padding_callback` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_record_padding_callback` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_get_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_get_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_block_padding` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_block_padding` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_tlsext_max_fragment_length` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_tlsext_max_fragment_length` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| **⇒ Stateless/HelloRetryRequest** | |
| `SSL_stateless` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_stateless_cookie_generate_cb` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_stateless_cookie_verify_cb` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| **⇒ Early Data/0-RTT** | |
| `SSL_CTX_set_allow_early_data_cb` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_allow_early_data_cb` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_get_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_get_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_get_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTX_set_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_get_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_set_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_read_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_write_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_get_early_data_status` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| **⇒ Miscellaneous** | |
| `DTLSv1_listen` | RL | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLS_set_timer_cb` | NDP | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `DTLS_get_data_mtu` | NDP | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_get_ex_data_X509_STORE_CTX_idx` | Global | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `BIO_ssl_shutdown` | Global | 🟩U | 🟩A | 🟩NC | 🟢Done |
| `SSL_alloc_buffers` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_free_buffers` | HL | 🟩U | 🟩A | 🟨C\* | 🟠Design TBD |
| `SSL_trace` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_debug` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Controls** | |
| `SSL_CTRL_MODE` | Special | 🟩U | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_CTRL_CLEAR_MODE` | Special | 🟩U | 🟩A | 🟧QSI | 🟡TODO |
| `SSL_CTRL_CLEAR_NUM_RENEGOTIATIONS` | HL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_NUM_RENEGOTIATIONS` | HL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TOTAL_RENEGOTIATIONS` | HL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_RI_SUPPORT` | HL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_READ_AHEAD` | HL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_READ_AHEAD` | HL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTRL_SET_MAX_PIPELINES` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTRL_SET_MAX_SEND_FRAGMENT` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTRL_SET_SPLIT_SEND_FRAGMENT` | RL | 🟩U | 🟥FC | 🟨C* | 🟡TODO |
| `SSL_CTRL_SET_MTU` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_MAX_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟨C* | 🟡TODO |
| `SSL_CTRL_SET_MIN_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟨C* | 🟡TODO |
| `SSL_CTRL_GET_MAX_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_MIN_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_BUILD_CERT_CHAIN` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_CERT_FLAGS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_CHAIN` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_CHAIN_CERT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_CLEAR_CERT_FLAGS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_CLEAR_EXTRA_CHAIN_CERTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_EXTRA_CHAIN_CERT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_CHAIN_CERTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_CHAIN_CERT_STORE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_CLIENT_CERT_REQUEST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_CLIENT_CERT_TYPES` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_EC_POINT_FORMATS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_EXTMS_SUPPORT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_EXTRA_CHAIN_CERTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_FLAGS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_GROUPS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_IANA_GROUPS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_MAX_CERT_LIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_NEGOTIATED_GROUP` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_PEER_SIGNATURE_NID` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_PEER_TMP_KEY` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_RAW_CIPHERLIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_SESS_CACHE_MODE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_SESS_CACHE_SIZE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_SHARED_GROUP` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_SIGNATURE_NID` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_CB_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_EXTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_IDS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_OCSP_RESP` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_STATUS_REQ_TYPE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TLSEXT_TICKET_KEYS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_TMP_KEY` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_GET_VERIFY_CERT_STORE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SELECT_CURRENT_CERT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_ACCEPT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_ACCEPT_GOOD` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_ACCEPT_RENEGOTIATE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_CACHE_FULL` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_CB_HIT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_CONNECT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_CONNECT_GOOD` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_CONNECT_RENEGOTIATE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_HIT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_MISSES` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_NUMBER` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SESS_TIMEOUTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_CHAIN_CERT_STORE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_CLIENT_CERT_TYPES` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_CLIENT_SIGALGS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_CLIENT_SIGALGS_LIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_CURRENT_CERT` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_DH_AUTO` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_GROUPS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_GROUPS_LIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_MAX_CERT_LIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_MSG_CALLBACK` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_MSG_CALLBACK_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_RETRY_VERIFY` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SESS_CACHE_MODE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SESS_CACHE_SIZE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SIGALGS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SIGALGS_LIST` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SRP_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SRP_GIVE_CLIENT_PWD_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_SRP_VERIFY_PARAM_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_DEBUG_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_DEBUG_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_HOSTNAME` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_SERVERNAME_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLS_EXT_SRP_STRENGTH` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLS_EXT_SRP_USERNAME` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLS_EXT_SRP_USERNAME_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB_ARG` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_EXTS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_IDS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_OCSP_RESP` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_STATUS_REQ_TYPE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TLSEXT_TICKET_KEYS` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TMP_DH` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TMP_DH_CB` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_TMP_ECDH` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_VERIFY_CERT_STORE` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| **⇒ SSL Modes** | |
| `SSL_MODE_ENABLE_PARTIAL_WRITE` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_MODE_RELEASE_BUFFERS` | ADP | 🟩U | 🟧NO | 🟩NC | 🟢Done |
| `SSL_MODE_ASYNC` | ADP | 🟩U | 🟧NO | 🟩NC | 🟢Done |
| `SSL_MODE_AUTO_RETRY` | ADP | TBD | TBD | TBD | 🔴Pending Triage |
| `SSL_MODE_SEND_FALLBACK_SCSV` | HL | 🟩U | 🟩A | 🟨C\* | 🟡TODO |

View File

@ -5,6 +5,97 @@ This document sets out the objectives of the QUIC API design process, describes
the new and changed APIs, and the design constraints motivating those API
designs and the relevant design decisions.
- [QUIC API Overview](#quic-api-overview)
* [Overview and Implementation Status](#overview-and-implementation-status)
* [Objectives](#objectives)
* [SSL Objects](#ssl-objects)
+ [Structure of Documentation](#structure-of-documentation)
+ [Existing APIs](#existing-apis)
- [`SSL_set_connect_state`](#-ssl-set-connect-state-)
- [`SSL_set_accept_state`](#-ssl-set-accept-state-)
- [`SSL_is_server`](#-ssl-is-server-)
- [`SSL_connect`](#-ssl-connect-)
- [`SSL_accept`](#-ssl-accept-)
- [`SSL_do_handshake`](#-ssl-do-handshake-)
- [`SSL_read`, `SSL_read_ex`, `SSL_peek`, `SSL_peek_ex`](#-ssl-read----ssl-read-ex----ssl-peek----ssl-peek-ex-)
- [`SSL_write`, `SSL_write_ex`](#-ssl-write----ssl-write-ex-)
- [`SSL_pending`](#-ssl-pending-)
- [`SSL_has_pending`](#-ssl-has-pending-)
- [`SSL_shutdown`](#-ssl-shutdown-)
- [`SSL_clear`](#-ssl-clear-)
- [`SSL_free`](#-ssl-free-)
- [`SSL_set0_rbio`, `SSL_set0_wbio`, `SSL_set_bio`](#-ssl-set0-rbio----ssl-set0-wbio----ssl-set-bio-)
- [`SSL_set_[rw]fd`](#-ssl-set--rw-fd-)
- [`SSL_get_[rw]fd`](#-ssl-get--rw-fd-)
- [`SSL_CTRL_MODE`, `SSL_CTRL_CLEAR_MODE`](#-ssl-ctrl-mode----ssl-ctrl-clear-mode-)
- [SSL Modes](#ssl-modes)
+ [New APIs](#new-apis)
- [`SSL_tick`](#-ssl-tick-)
- [`SSL_get_tick_timeout`](#-ssl-get-tick-timeout-)
- [`SSL_set_blocking_mode`, `SSL_get_blocking_mode`](#-ssl-set-blocking-mode----ssl-get-blocking-mode-)
- [`SSL_get_rpoll_descriptor`, `SSL_get_wpoll_descriptor`](#-ssl-get-rpoll-descriptor----ssl-get-wpoll-descriptor-)
- [`SSL_want_net_read`, `SSL_want_net_write`](#-ssl-want-net-read----ssl-want-net-write-)
- [`SSL_want`, `SSL_want_read`, `SSL_want_write`](#-ssl-want----ssl-want-read----ssl-want-write-)
- [`SSL_set_initial_peer_addr`, `SSL_get_initial_peer_addr`](#-ssl-set-initial-peer-addr----ssl-get-initial-peer-addr-)
- [`SSL_shutdown_ex`](#-ssl-shutdown-ex-)
- [`SSL_stream_conclude`](#-ssl-stream-conclude-)
- [`SSL_stream_reset`](#-ssl-stream-reset-)
- [`SSL_get_stream_state`](#-ssl-get-stream-state-)
- [`SSL_get_stream_error_code`](#-ssl-get-stream-error-code-)
- [`SSL_get_conn_close_info`](#-ssl-get-conn-close-info-)
+ [Future APIs](#future-apis)
* [BIO Objects](#bio-objects)
+ [Existing APIs](#existing-apis-1)
- [`BIO_s_connect`, `BIO_new_ssl_connect`, `BIO_set_conn_hostname`](#-bio-s-connect----bio-new-ssl-connect----bio-set-conn-hostname-)
- [`BIO_new_bio_pair`](#-bio-new-bio-pair-)
- [Interactions with `BIO_f_buffer`](#interactions-with--bio-f-buffer-)
- [MTU Signalling](#mtu-signalling)
+ [New APIs](#new-apis-1)
- [`BIO_sendmmsg` and `BIO_recvmmsg`](#-bio-sendmmsg--and--bio-recvmmsg-)
- [Truncation Mode](#truncation-mode)
- [Capability Negotiation](#capability-negotiation)
- [Local Address Support](#local-address-support)
- [`BIO_s_dgram_pair`](#-bio-s-dgram-pair-)
- [`BIO_POLL_DESCRIPTOR`](#-bio-poll-descriptor-)
- [`BIO_s_dgram_mem`](#-bio-s-dgram-mem-)
- [`BIO_err_is_non_fatal`](#-bio-err-is-non-fatal-)
* [Q & A](#q---a)
* [Implementation Status](#implementation-status)
Overview and Implementation Status
----------------------------------
A listing of all SSL object APIs and their implications for QUIC, including
current implementation status, can be found in
[quic-api-ssl-funcs.md](./quic-api-ssl-funcs.md).
Non-SSL object APIs which are new or changed, or otherwise discussed in this
document are listed below, along with their implementation status. SSL object
APIs are not listed here; see [quic-api-ssl-funcs.md](./quic-api-ssl-funcs.md)
for details on SSL object APIs.
| Semantics | API | Status |
|-----------|---------------------------------|--------|
| TBD | `BIO_s_connect` | TODO |
| TBD | `BIO_set_conn_hostname` | TODO |
| TBD | `BIO_new_bio_pair` | TODO |
| New | `BIO_s_dgram_pair` | Done |
| Unchanged | `BIO_dgram_get_mtu` | Done |
| Unchanged | `BIO_dgram_set_mtu` | Done |
| New | `BIO_sendmmsg` | Done |
| New | `BIO_recvmmsg` | Done |
| New | `BIO_dgram_set_no_trunc` | Done |
| New | `BIO_dgram_get_no_trunc` | Done |
| New | `BIO_dgram_set_caps` | Done |
| New | `BIO_dgram_get_caps` | Done |
| New | `BIO_dgram_get_effective_caps` | Done |
| New | `BIO_dgram_get_local_addr_cap` | Done |
| New | `BIO_dgram_set_local_addr_enable` | Done |
| New | `BIO_dgram_get_local_addr_enable` | Done |
| New | `BIO_get_rpoll_descriptor` | Done |
| New | `BIO_get_wpoll_descriptor` | Done |
| New | `BIO_err_is_non_fatal` | Done |
Objectives
----------