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openssl/doc/designs/quic-design/quic-api-ssl-funcs.md
Richard Levitte 5995dc3719 [DOCS] Fix table inconsistencies detected by mdl 
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/22240)
2023-10-02 12:38:51 +02:00

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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.
- †11: Since these functions only configure cipher suite lists used for TLSv1.2,
which is never used for QUIC, they do not require changes, and we can allow
applications to configure these lists freely, as they will be ignored.
| 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 | 🟢Done |
| `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 | 🟥FC | 🟢Done |
| `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_set_ssl_method` | Object | 🟩U | 🟥FC | 🟧QSI | 🟢Done |
| **⇒ SRTP** | | | | | |
| `SSL_get_selected_srtp_profile` | HL | 🟩U | 🟧NO | 🟨C\* | 🟢Done |
| `SSL_get_srtp_profiles` | HL | 🟩U | 🟧NO | 🟨C\* | 🟢Done |
| `SSL_CTX_set_tlsext_use_srtp` | HL | 🟩U | 🟥FC | 🟨C\* | 🟢Done |
| `SSL_set_tlsext_use_srtp` | HL | 🟩U | 🟥FC | 🟩NC\* | 🟢Done |
| **⇒ Ciphersuite Configuration** | | | | | |
| `SSL_CTX_set_cipher_list` | HL | 🟩U | 🟩A | 🟩NC\* †11 | 🟢Done |
| `SSL_CTX_set_ciphersuites` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟢Done |
| `SSL_CTX_get_ciphers` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_ciphersuites` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get1_supported_ciphers` | HL | 🟩U | 🟩A | 🟨C\* †1 | 🟢Done |
| `SSL_bytes_to_cipher_list` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_ciphers` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_get_cipher_list` | HL | 🟩U | 🟩A | 🟩NC\* †11 | 🟢Done |
| `SSL_set_cipher_list` | HL | 🟩U | 🟩A | 🟩NC\* †11 | 🟢Done |
| **⇒ Negotiated Ciphersuite Queries** | | | | | |
| `SSL_get_current_cipher` | HL | 🟩U | 🟩A | 🟩NC\* †9 | 🟢Done |
| `SSL_get_pending_cipher` | HL | 🟩U | 🟩A | 🟩NC\* †9 | 🟢Done |
| `SSL_get_shared_ciphers` | HL | 🟩U | 🟩A | 🟩NC\* †9 | 🟢Done |
| `SSL_get_client_ciphers` | HL | 🟩U | 🟩A | 🟩NC\* †9 | 🟢Done |
| `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 | 🟢Done |
| `SSL_SESSION_get0_alpn_selected` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟢Done |
| `SSL_CTX_set_alpn_select_cb` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟢Done |
| `SSL_set_alpn_protos` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟢Done |
| `SSL_get0_alpn_selected` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟢Done |
| `SSL_CTX_set_alpn_protos` | HL | 🟩U | 🟩A | 🟨C\* †2 | 🟢Done |
| **⇒ NPN** | †3 | | | | |
| `SSL_CTX_set_next_proto_select_cb` | HL | 🟩U | 🟥FC | 🟨C\* †3 | 🟢Done |
| `SSL_CTX_set_next_protos_advertised_cb` | HL | 🟩U | 🟥FC | 🟨C\* †3 | 🟢Done |
| `SSL_get0_next_proto_negotiated` | HL | 🟩U | 🟥FC | 🟩NC\* †3 | 🟢Done |
| **⇒ 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\* | 🟢Done |
| `SSL_CTX_set_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟢Done |
| `SSL_CTX_get_options` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_clear_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟢Done |
| `SSL_set_options` | HL | 🟩U | 🟩A | 🟨C\* | 🟢Done |
| `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 | 🟩NC\* †7 | 🟢Done |
| `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 |
| `SSL_get_security_callback` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_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 | 🟢Done |
| `SSL_CTX_set_post_handshake_auth` | HL | 🟩U | 🟥FC | 🟨C* †8 | 🟢Done |
| `SSL_set_post_handshake_auth` | HL | 🟩U | 🟥FC | 🟨C* †8 | 🟢Done |
| **⇒ 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 | 🟢Done |
| `SSL_rstate_string_long` | HL | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_state_string` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_state_string_long` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ 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 | 🟩NC\* | 🟢Done |
| `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 | 🟥FC | 🟩NC\* | 🟢Done |
| `SSL_pending` | ADP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_has_pending` | ADP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `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 |
| `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 | 🟢Done |
| `SSL_set_wfd` | NDP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set_fd` | NDP | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_key_update` | RL | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_get_key_update_type` | RL | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_clear` (connection) | CSSM | 🟩U | 🟥FC | 🟧QSI | 🟢Done |
| `SSL_clear` (stream) | CSSM | 🟩U | 🟥FC | 🟧QSI | 🟢Done |
| `SSL_shutdown` | CSSM | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `SSL_want` | ADP | 🟧C | 🟩A | 🟧QSI | 🟢Done |
| `BIO_new_ssl_connect` | Global | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `BIO_new_buffer_ssl_connect` | Global | 🟩U | 🟦U | 🟧QSI | 🟢Done |
| `SSL_get_shutdown` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_set_shutdown` | CSSM | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| **⇒ New APIs** | | | | | |
| `SSL_is_tls` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_is_quic` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_handle_events` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_event_timeout` | 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_net_read_desired` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_net_write_desired` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_set1_initial_peer_addr` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_shutdown_ex` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_stream_conclude` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_stream_reset` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_read_state` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_write_state` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_read_error_code` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_write_error_code` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_conn_close_info` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_inject_net_dgram` | NDP | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| **⇒ New APIs for Multi-Stream** | | | | | |
| `SSL_get0_connection` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_is_connection` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_id` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_stream_type` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_is_stream_local` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_new_stream` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_accept_stream` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_get_accept_stream_queue_len` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_set_default_stream_mode` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| `SSL_set_incoming_stream_policy` | CSSM | 🟦N | 🟩A | 🟥QSA | 🟢Done |
| **⇒ Currently Not Supported** | | | | | |
| `SSL_copy_session_id` | Special | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `BIO_ssl_copy_session_id` | Special | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_set_quiet_shutdown` | CSSM | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_CTX_get_quiet_shutdown` | CSSM | 🟩U | 🟦U | 🟩NC | 🟢Done |
| `SSL_set_quiet_shutdown` | CSSM | 🟩U | 🟥FC | 🟨C | 🟢Done |
| `SSL_get_quiet_shutdown` | CSSM | 🟩U | 🟧NO | 🟨C | 🟢Done |
| `SSL_CTX_set_ssl_version` | HL | 🟩U | 🟥FC | 🟨C | 🟢Done |
| **⇒ 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 | 🟩NC* | 🟢Done |
| `SSL_CTX_get_read_ahead` | RL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_CTX_set_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟢Done |
| `SSL_get_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟢Done |
| `SSL_set_read_ahead` | RL | 🟩U | 🟧NO | 🟨C* | 🟢Done |
| `SSL_CTX_set_default_read_buffer_len` | RL | 🟩U | 🟧NO | 🟩NC* | 🟢Done |
| `SSL_set_default_read_buffer_len` | RL | 🟩U | 🟧NO | 🟨C* | 🟢Done |
| **⇒ Record Padding and Fragmentation** | | | | | |
| `SSL_CTX_set_record_padding_callback` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_record_padding_callback` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_get_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTX_set_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_get_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_record_padding_callback_arg` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTX_set_block_padding` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_block_padding` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_set_tlsext_max_fragment_length` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_tlsext_max_fragment_length` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| **⇒ Stateless/HelloRetryRequest** | | | | | |
| `SSL_stateless` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_set_stateless_cookie_generate_cb` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTX_set_stateless_cookie_verify_cb` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| **⇒ Early Data/0-RTT** | | | | | |
| `SSL_CTX_set_allow_early_data_cb` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_allow_early_data_cb` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_get_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTX_set_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_get_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_recv_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTX_get_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTX_set_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_get_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_set_max_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_read_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_write_early_data` | 0-RTT | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_get_early_data_status` | 0-RTT | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| **⇒ 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\* | 🟢Done |
| `SSL_free_buffers` | HL | 🟩U | 🟩A | 🟨C\* | 🟢Done |
| `SSL_trace` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| `SSL_set_debug` | HL | 🟩U | 🟩A | 🟩NC\* | 🟢Done |
| **⇒ Controls** | | | | | |
| `SSL_CTRL_MODE` | Special | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `SSL_CTRL_CLEAR_MODE` | Special | 🟩U | 🟩A | 🟧QSI | 🟢Done |
| `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* | 🟢Done |
| `SSL_CTRL_SET_MAX_PIPELINES` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTRL_SET_MAX_SEND_FRAGMENT` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTRL_SET_SPLIT_SEND_FRAGMENT` | RL | 🟩U | 🟥FC | 🟨C* | 🟢Done |
| `SSL_CTRL_SET_MTU` | RL | 🟩U | 🟥FC | 🟩NC* | 🟢Done |
| `SSL_CTRL_SET_MAX_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟨C* | 🟢Done |
| `SSL_CTRL_SET_MIN_PROTO_VERSION` | HL | 🟩U | 🟩A | 🟩NC* | 🟢Done |
| `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 | 🟩U | 🟧NO | 🟩NC | 🟢Done |
| `SSL_MODE_SEND_FALLBACK_SCSV` | HL | 🟩U | 🟩U | 🟩NC | 🟢Done |
Q&A For TLS-Related Calls
-------------------------
### What should `SSL_get_current_cipher`, `SSL_get_pending_cipher`, etc. do?
QUIC always uses AES-128-GCM for Initial packets. At this time the handshake
layer has not negotiated a ciphersuite so it has no “current” cipher. We could
return AES-128-GCM here, but it seems reasonable to just return NULL as the
encryption is mostly for protection against accidental modification and not
“real” encryption. From the perspective of the Handshake layer encryption is not
active yet. An application using QUIC can always interpret NULL as meaning
AES-128-GCM is being used if needed as this is implied by using QUIC.
A. We return NULL here, because it allows applications to detect if a
ciphersuite has been negotiated and NULL can be used to infer that Initial
encryption is still being used. This also minimises the changes needed to the
implementation.
### What should `SSL_CTX_set_cipher_list` do?
Since this function configures the cipher list for TLSv1.2 and below only, there
is no need to restrict it as TLSv1.3 is required for QUIC. For the sake of
application compatibility, applications can still configure the TLSv1.2 cipher
list; it will always be ignored. This function can still be used to set the
SECLEVEL; no changes are needed to facilitate this.
### What SSL options should be supported?
Options we explicitly want to support:
- `SSL_OP_CIPHER_SERVER_PREFERENCE`
- `SSL_OP_DISABLE_TLSEXT_CA_NAMES`
- `SSL_OP_NO_TX_CERTIFICATE_COMPRESSION`
- `SSL_OP_NO_RX_CERTIFICATE_COMPRESSION`
- `SSL_OP_PRIORITIZE_CHACHA`
- `SSL_OP_NO_TICKET`
- `SSL_OP_CLEANSE_PLAINTEXT`
Options we do not yet support but could support in the future, currently no-ops:
- `SSL_OP_NO_QUERY_MTU`
- `SSL_OP_NO_ANTI_REPLAY`
The following options must be explicitly forbidden:
- `SSL_OP_NO_TLSv1_3` — TLSv1.3 is required for QUIC
- `SSL_OP_ENABLE_MIDDLEBOX_COMPAT` — forbidden by QUIC RFCs
- `SSL_OP_ENABLE_KTLS` — not currently supported for QUIC
- `SSL_OP_SAFARI_ECDHE_ECDSA_BUG`
- `SSL_OP_TLSEXT_PADDING`
- `SSL_OP_TLS_ROLLBACK_BUG`
- `SSL_OP_IGNORE_UNEXPECTED_EOF`
- `SSL_OP_ALLOW_NO_DHE_KEX`
The following options are ignored for TLSv1.3 or otherwise not applicable and
may therefore be settable but ignored. We take this approach on the grounds
that it is harmless and applications might want to see that options have been
correctly set for protocols unrelated to QUIC.
- `SSL_OP_CRYPTOPRO_TLSEXT_BUG`
- `SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS`
- `SSL_OP_ALLOW_CLIENT_RENEGOTIATION`
- `SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION`
- `SSL_OP_CISCO_ANYCONNECT`
- `SSL_OP_COOKIE_EXCHANGE`
- `SSL_OP_LEGACY_SERVER_CONNECT`
- `SSL_OP_NO_COMPRESSION`
- `SSL_OP_NO_ENCRYPT_THEN_MAC`
- `SSL_OP_NO_EXTENDED_MASTER_SECRET`
- `SSL_OP_NO_RENEGOTIATION`
- `SSL_OP_NO_RESSION_RESUMPTION_ON_NEGOTIATION`
- `SSL_OP_NO_SSLv3`
- `SSL_OP_NO_TLSv1`
- `SSL_OP_NO_TLSv1_1`
- `SSL_OP_NO_TLSv1_2`
- `SSL_OP_NO_DTLSv1`
- `SSL_OP_NO_DTLSv1_2`
### What should `SSL_rstate_string` and `SSL_state_string` do?
SSL_state_string is highly handshake layer specific, so it makes sense to just
forward to the handshake layer.
SSL_rstate_string is record layer specific. A cursory evaluation of usage via
GitHub code search did not appear to identify much usage of this function other
than for debug output; i.e., there seems to be little usage of this in a way
that depends on the output for the purposes of control flow. Since there is not
really any direct correspondence to the QUIC record layer, we conservatively
define the output of this function as "unknown".
TODO: forbid NPN
TODO: enforce TLSv1.3
TODO: forbid PHA - DONE
TODO: forbid middlebox compat mode in a deeper way?
TODO: new_session_ticket doesn't need modifying as such, but ticket machinery
will
### What should `SSL_pending` and `SSL_has_pending` do?
`SSL_pending` traditionally yields the number of bytes buffered inside a SSL
object available for immediate reading. For QUIC, we can just make this report
the current size of the receive stream buffer.
`SSL_has_pending` returns a boolean value indicating whether there is processed
or unprocessed incoming data pending. There is no direct correspondence to
QUIC, so there are various implementation options:
- `SSL_pending() > 0`
- `SSL_pending() > 0 || pending URXEs or RXEs exist`
The latter can probably be viewed as more of a direct correspondence to the
design intent of the API, so we go with this.
### What should `SSL_alloc_buffers` and `SSL_free_buffers` do?
These do not really correspond to our internal architecture for QUIC. Since
internal buffers are always available, `SSL_alloc_buffers` can simply always
return 1. `SSL_free_buffers` can always return 0, as though the buffers are in
use, which they generally will be.
### What should `SSL_key_update` and `SSL_get_key_update_type`?
`SSL_key_update` can trigger a TX record layer key update, which will cause the
peer to respond with a key update in turn. The update occurs asynchronously
at next transmission, not immediately.
`SSL_get_key_update_type` returns an enumerated value which is only relevant to
the TLSv1.3 protocol; for QUIC, it will always return `SSL_KEY_UPDATE_NONE`.
### What should `SSL_MODE_AUTO_RETRY` do?
The absence of `SSL_MODE_AUTO_RETRY` causes `SSL_read`/`SSL_write` on a normal
TLS connection to potentially return due to internal handshake message
processing. This does not really make sense for our QUIC implementation,
therefore we always act as though `SSL_MODE_AUTO_RETRY` is on, and this mode is
ignored.
### What should `SSL_MODE_SEND_FALLBACK_SCSV` do?
This is not relevant to QUIC because this functionality relates to protocol
version downgrade attack protection and QUIC only supports TLSv1.3. Thus,
it is ignored.
### What should `SSL_CTX_set_ssl_version` do?
This is a deprecated function, so it needn't be supported for QUIC. Fail closed.
### What should `SSL_set_ssl_method` do?
We do not currently support this for QUIC.
### What should `SSL_set_shutdown` do?
This is not supported and is a no-op for QUIC.
### What should `SSL_dup` and `SSL_clear` do?
These may be tricky to support. Currently they are blocked.
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