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Add isc_tlsctx_attach()

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The implementation is done on top of the reference counting
functionality found in OpenSSL/LibreSSL, which allows for avoiding
wrapping the object.

Adding this function allows using reference counting for TLS contexts
in BIND 9's codebase.
This commit is contained in:
Artem Boldariev
2022-02-22 17:07:57 +02:00
parent 09dccf29b4
commit a7a482c1b1
5 changed files with 34 additions and 0 deletions
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10
lib/isc/tls.c
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@@ -188,6 +188,16 @@ isc_tlsctx_free(isc_tlsctx_t **ctxp) {
SSL_CTX_free(ctx);
}
void
isc_tlsctx_attach(isc_tlsctx_t *src, isc_tlsctx_t **ptarget) {
REQUIRE(src != NULL);
REQUIRE(ptarget != NULL && *ptarget == NULL);
RUNTIME_CHECK(SSL_CTX_up_ref(src) == 1);
*ptarget = src;
}
#if HAVE_SSL_CTX_SET_KEYLOG_CALLBACK
/*
* Callback invoked by the SSL library whenever a new TLS pre-master secret