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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/doc/ssl/SSL_CTX_add_session.pod | |
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Diffstat (limited to 'openssl/doc/ssl/SSL_CTX_add_session.pod')
-rw-r--r-- | openssl/doc/ssl/SSL_CTX_add_session.pod | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/openssl/doc/ssl/SSL_CTX_add_session.pod b/openssl/doc/ssl/SSL_CTX_add_session.pod new file mode 100644 index 000000000..82676b26b --- /dev/null +++ b/openssl/doc/ssl/SSL_CTX_add_session.pod @@ -0,0 +1,73 @@ +=pod + +=head1 NAME + +SSL_CTX_add_session, SSL_add_session, SSL_CTX_remove_session, SSL_remove_session - manipulate session cache + +=head1 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); + +=head1 DESCRIPTION + +SSL_CTX_add_session() adds the session B<c> to the context B<ctx>. The +reference count for session B<c> is incremented by 1. If a session with +the same session id already exists, the old session is removed by calling +L<SSL_SESSION_free(3)|SSL_SESSION_free(3)>. + +SSL_CTX_remove_session() removes the session B<c> from the context B<ctx>. +L<SSL_SESSION_free(3)|SSL_SESSION_free(3)> is called once for B<c>. + +SSL_add_session() and SSL_remove_session() are synonyms for their +SSL_CTX_*() counterparts. + +=head1 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. + + +=head1 RETURN VALUES + +The following values are returned by all functions: + +=over 4 + +=item 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. + +=item 1 + + The operation succeeded. + +=back + +=head1 SEE ALSO + +L<ssl(3)|ssl(3)>, +L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>, +L<SSL_SESSION_free(3)|SSL_SESSION_free(3)> + +=cut |