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openssl: Set some sort of session id context.

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Without a session id context and if client certificates are used, OpenSSL
fails the handshake if an attempt is made to reuse an old session. Various
clients could not reconnect after a disconnection because of this.

See https://bugzilla.mozilla.org/show_bug.cgi?id=858394#c34 for a bug
report.
This commit is contained in:
Jilles Tjoelker 2014-01-15 21:50:08 +01:00
parent c8729b08fb
commit fabc3174fe
1 changed files with 1 additions and 0 deletions
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1
libratbox/src/openssl.c
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@ -314,6 +314,7 @@ rb_init_ssl(void)
/* Disable SSLv2, make the client use our settings */
SSL_CTX_set_options(ssl_server_ctx, SSL_OP_NO_SSLv2 | SSL_OP_CIPHER_SERVER_PREFERENCE);
SSL_CTX_set_verify(ssl_server_ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, verify_accept_all_cb);
SSL_CTX_set_session_id_context(ssl_server_ctx, "libratbox", 9);
/* Set ECDHE on OpenSSL 1.00+, but make sure it's actually available because redhat are dicks
and bastardise their OpenSSL for stupid reasons... */