SSL_CTX_add_session(3) OpenSSL SSL_CTX_add_session(3)NAME
SSL_CTX_add_session, SSL_add_session,
SSL_CTX_remove_session, SSL_remove_session - manipulate
session cache
SYNOPSIS
#include <openssl/ssl.h>
int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c);
int SSL_add_session(SSL_CTX *ctx, SSL_SESSION *c);
int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
int SSL_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
DESCRIPTIONSSL_CTX_add_session() adds the session c to the context
ctx. The reference count for session c is incremented by
1. If a session with the same session id already exists,
the old session is removed by calling SSL_SESSION_free(3).
SSL_CTX_remove_session() removes the session c from the
context ctx. SSL_SESSION_free(3) is called once for c.
SSL_add_session() and SSL_remove_session() are synonyms
for their SSL_CTX_*() counterparts.
NOTES
When adding a new session to the internal session cache,
it is examined whether a session with the same session id
already exists. In this case it is assumed that both
sessions are identical. If the same session is stored in a
different SSL_SESSION object, The old session is removed
and replaced by the new session. If the session is
actually identical (the SSL_SESSION object is identical),
SSL_CTX_add_session() is a no-op, and the return value is
0.
If a server SSL_CTX is configured with the
SSL_SESS_CACHE_NO_INTERNAL_STORE flag then the internal
cache will not be populated automatically by new sessions
negotiated by the SSL/TLS implementation, even though the
internal cache will be searched automatically for session-
resume requests (the latter can be surpressed by
SSL_SESS_CACHE_NO_INTERNAL_LOOKUP). So the application can
use SSL_CTX_add_session() directly to have full control
over the sessions that can be resumed if desired.
RETURN VALUES
The following values are returned by all functions:
0
The operation failed. In case of the add operation, it was tried to add
the same (identical) session twice. In case of the remove operation, the
session was not found in the cache.
1 The operation succeeded.
SEE ALSOssl(3), SSL_CTX_set_session_cache_mode(3),
SSL_SESSION_free(3)29/Oct/2002 0.9.6j SSL_CTX_add_session(3)
