If you would want to confirm if your version of OpenSSL that was compiled months ago (and the options specified at that time are forgotten) provides for SRTP support then one way to do that would be to utilize “objmap” on linux. If you see functions such as the following then it was not compiled with the “OPENSSL_NO_SRTP” option.
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SSL_CTX_set_tlsext_use_srtp ssl_add_serverhello_use_srtp_ext etc. |
It seems that SRTP is compiled by default and is supported by default.
The command to use:
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$ objdump -f libssl.so -x | grep -i SRTP |
