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#
# Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
#
# This software is supplied under the terms of the MIT License, a
# copy of which should be located in the distribution where this
# file was obtained (LICENSE.txt). A copy of the license may also be
# found online at https://opensource.org/licenses/MIT.
#
include(FindThreads)
if (NNG_TLS_ENGINE STREQUAL "wolf")
message(NOTICE "
************************************************************
Linking against WolfSSL may change license terms.
Consult a lawyer and the license files for details.
************************************************************")
nng_sources(wolfssl.c)
# If wolfSSL was added by a consuming project, then we should use that
# instance of it, instead of configuring our own.
if (TARGET wolfssl)
nng_link_libraries(wolfssl)
else()
# We want to prefer config mode over our local find package.
if (NOT (DEFINED CMAKE_FIND_PACKAGE_PREFER_CONFIG))
set(CMAKE_FIND_PACKAGE_PREFER_CONFIG TRUE)
nng_find_package(wolfSSL)
unset(CMAKE_FIND_PACKAGE_PREFER_CONFIG)
else()
nng_find_package(wolfSSL)
endif()
nng_link_libraries_public(wolfssl::wolfssl)
endif()
check_library_exists(wolfssl::wolfssl wolfSSL_CTX_LoadCRLBuffer "" NNG_WOLFSSL_HAVE_CRL)
check_library_exists(wolfssl::wolfssl wolfSSL_get_verify_result "" NNG_WOLFSSL_HAVE_VERIFY)
check_library_exists(wolfssl::wolfssl wolfSSL_CTX_set_default_passwd_cb "" NNG_WOLFSSL_HAVE_PASSWORD)
check_library_exists(wolfssl::wolfssl wolfSSL_get_peer_certificate "" NNG_WOLFSSL_HAVE_PEER_CERT)
check_library_exists(wolfssl::wolfssl wolfSSL_CTX_SetTmpDH "" NNG_WOLFSSL_HAVE_DH)
check_library_exists(wolfssl::wolfssl wolfSSL_CTX_set_psk_client_callback "" NNG_WOLFSSL_HAVE_PSK)
if (NNG_WOLFSSL_HAVE_DH)
nng_defines(NNG_WOLFSSL_HAVE_DH)
else ()
message(STATUS "wolfSSL configured without DH support.")
endif ()
if (NNG_WOLFSSL_HAVE_CRL)
nng_defines(NNG_WOLFSSL_HAVE_CRL)
else ()
message(STATUS "wolfSSL configured without CRL support.")
endif ()
if (NNG_WOLFSSL_HAVE_PASSWORD)
nng_defines(NNG_WOLFSSL_HAVE_PASSWORD)
else ()
message(STATUS "wolfSSL configured without password support.")
endif ()
if (NNG_WOLFSSL_HAVE_PEER_CERT)
nng_defines(NNG_WOLFSSL_HAVE_PEER_CERT)
else ()
message(STATUS "wolfSSL configured without peer cert chain support.")
endif ()
if (NNG_WOLFSSL_HAVE_PSK)
nng_defines(NNG_SUPP_TLS_PSK)
else ()
message(STATUS "wolfSSL configured without pre-shared key (PSK) support.")
endif()
nng_defines(NNG_TLS_ENGINE_INIT=nng_tls_engine_init_wolf)
nng_defines(NNG_TLS_ENGINE_FINI=nng_tls_engine_fini_wolf)
nng_defines(NNG_SUPP_TLS)
nng_defines(NNG_TLS_ENGINE_WOLFSSL)
endif ()
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