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asio: Use internal ssl context and engine impl

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Implement asio-ssl layer with three classes in asio::ssl::mbedtls:
* context -- replaces SSL_CTX, used mainly as a container to options,
certs, keys
* engine -- replaces SSL, implements the actual mbedtls operations
* bio -- implements openssl BIO specifically tailered to mbedtls and
its asio usage

Further updates:
* asio: Used shared_ptr<> for bio pairs
* asio: Add error checks to mbedtls-bio
* asio: Address potential ssl-context ownership issue
* asio: Address potential bio-engine ownership issue


* Original commit: espressif/esp-idf@d823106aa6
This commit is contained in:
David Cermak
2021-10-14 10:17:24 +02:00
committed by gabsuren
parent abbc8d9c5a
commit f605fdd632
25 changed files with 1014 additions and 321 deletions
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11
components/asio/CMakeLists.txt
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@ -11,8 +11,10 @@ set(asio_sources "asio/asio/src/asio.cpp")
if(CONFIG_ASIO_SSL_SUPPORT)
if(CONFIG_ASIO_USE_ESP_OPENSSL)
list(APPEND asio_sources
"asio/asio/src/asio_ssl.cpp"
"port/src/esp_asio_openssl_stubs.c")
"port/src/asio_ssl_impl.cpp"
"port/mbedtls/src/mbedtls_context.cpp"
"port/mbedtls/src/mbedtls_engine.cpp")
set(asio_priv_includes "port/mbedtls/include")
endif()
if(CONFIG_ASIO_USE_ESP_WOLFSSL)
@ -23,6 +25,7 @@ endif()
idf_component_register(SRCS ${asio_sources}
INCLUDE_DIRS "asio/asio/include" "port/include"
PRIV_INCLUDE_DIRS ${asio_priv_includes}
REQUIRES lwip)
if(CONFIG_ASIO_SSL_SUPPORT)
@ -35,7 +38,7 @@ if(CONFIG_ASIO_SSL_SUPPORT)
endif()
if(CONFIG_ASIO_USE_ESP_OPENSSL)
idf_component_get_property(esp_openssl openssl COMPONENT_LIB)
target_link_libraries(${COMPONENT_LIB} PUBLIC ${esp_openssl})
idf_component_get_property(mbedtls mbedtls COMPONENT_LIB)
target_link_libraries(${COMPONENT_LIB} PUBLIC ${mbedtls})
endif()
endif()