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29 lines
1.3 KiB
Markdown
29 lines
1.3 KiB
Markdown
Session Cache API Change
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This affects users who use `mbedtls_ssl_conf_session_cache()`
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to configure a custom session cache implementation different
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from the one Mbed TLS implements in `library/ssl_cache.c`.
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Those users will need to modify the API of their session cache
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implementation to that of a key-value store with keys being
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session IDs and values being instances of `mbedtls_ssl_session`:
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```
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typedef int mbedtls_ssl_cache_get_t( void *data,
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unsigned char const *session_id,
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size_t session_id_len,
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mbedtls_ssl_session *session );
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typedef int mbedtls_ssl_cache_set_t( void *data,
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unsigned char const *session_id,
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size_t session_id_len,
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const mbedtls_ssl_session *session );
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```
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Since the structure of `mbedtls_ssl_session` is no longer public from 3.0
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onwards, portable session cache implementations must not access fields of
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`mbedtls_ssl_session`. See the corresponding migration guide. Users that
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find themselves unable to migrate their session cache functionality without
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accessing fields of `mbedtls_ssl_session` should describe their usecase
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on the Mbed TLS mailing list.
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