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/*------------------------------------------------------------------------- * * openssl.h * OpenSSL supporting functionality shared between frontend and backend * * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION * src/include/common/openssl.h * *------------------------------------------------------------------------- */ #ifndef COMMON_OPENSSL_H #define COMMON_OPENSSL_H #ifdef USE_OPENSSL #include <openssl/ssl.h> /* * OpenSSL doesn't provide any very nice way to identify the min/max * protocol versions the library supports, so we fake it as best we can. * Note in particular that this doesn't account for restrictions that * might be specified in the installation's openssl.cnf. * * We disable SSLv3 and older in library setup, so TLSv1 is the oldest * protocol version of interest. */ #define MIN_OPENSSL_TLS_VERSION "TLSv1" #if defined(TLS1_3_VERSION) #define MAX_OPENSSL_TLS_VERSION "TLSv1.3" #elif defined(TLS1_2_VERSION) #define MAX_OPENSSL_TLS_VERSION "TLSv1.2" #elif defined(TLS1_1_VERSION) #define MAX_OPENSSL_TLS_VERSION "TLSv1.1" #else #define MAX_OPENSSL_TLS_VERSION "TLSv1" #endif /* src/common/protocol_openssl.c */ #ifndef SSL_CTX_set_min_proto_version extern int SSL_CTX_set_min_proto_version(SSL_CTX *ctx, int version); extern int SSL_CTX_set_max_proto_version(SSL_CTX *ctx, int version); #endif #endif /* USE_OPENSSL */ #endif /* COMMON_OPENSSL_H */