SRTP profile is not supported

[jiajialaixi]

openssl version:3.3.0

cmake -B build-$1 \ -Dhave_sa_len=0 \ -DHAVE_MACHINE_TYPES_H=0 \ -DANDROID=1 \ -DCMAKE_SYSTEM_NAME=Android \ -DCMAKE_SYSTEM_VERSION=$API \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_ANDROID_ARCH_ABI=ABI \ -DCMAKE_TOOLCHAIN_FILE="${NDK_ROOT}/build/cmake/android.toolchain.cmake" \ -DANDROID_NDK="${NDK_ROOT}" \ -DANDROID_NATIVE_API_LEVEL=${API_LEVEL} \ -DANDROID_ABI="$ABI" \ -DBUILD_TESTING=OFF \ -DENABLE_OPENSSL=NO \ -DOPENSSL=NO \ -DOPENSSL_USE_STATIC_LIBS="1" \ -DOPENSSL_INCLUDE_DIR="${OPENSSL_SO_DIR}/include" \ -DOPENSSL_SSL_LIBRARY="${OPENSSL_SO_DIR}/lib/libssl.a" \ -DOPENSSL_CRYPTO_LIBRARY="${OPENSSL_SO_DIR}/lib/libcrypto.a" \ -DUSE_GNUTLS=0 \ -DUSE_NICE=0

May I ask what is the reason for this issue and what modifications do I need to make?

[paullouisageneau]

It looks like you build the libsrtp submodule. You must remove the options -DENABLE_OPENSSL=NO -DOPENSSL=NO otherwise they interfere with the build and prevent libsrtp from using OpenSSL. Without OpenSSL, libsrtp does not support GCM encryption.

[jiajialaixi]

If I want to disable GCM
1、add -DENABLE_OPENSSL=OFF -DGCM=OFF Setting these two APIs is invalid
2、remove -DOPENSSL_INCLUDE_DIR -DOPENSSL_SSL_LIBRARY -DOPENSSL_CRYPTO_LIBRARY The following error occurred

[paullouisageneau]

libdatachannel requires a crypto library for DTLS, you can't build it without OpenSSL. There is no option to disable GCM.

[jiajialaixi]

At present, please close it first. We will reopen it once there are detailed logs. We are currently working on other tasks, thank you!!!