f4401cd869
alter des.h to be friendly with openssl/des.h (you can include both in the same file) make libkrb to depend on libdes. bump major. massage various portioin of heimdal to be friendly with openssl 0.9.7b.
210 lines
6.3 KiB
Groff
210 lines
6.3 KiB
Groff
.\" $NetBSD: SSL_CTX_add_session.3,v 1.8 2003/07/24 14:16:43 itojun Exp $
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.\" ======================================================================
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.\"
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.IX Title "SSL_CTX_add_session 3"
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.TH SSL_CTX_add_session 3 "0.9.7b" "2002-10-29" "OpenSSL"
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.UC
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.SH "NAME"
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SSL_CTX_add_session, SSL_add_session, SSL_CTX_remove_session, SSL_remove_session \- manipulate session cache
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.SH "LIBRARY"
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libcrypto, -lcrypto
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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.Vb 1
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\& #include <openssl/ssl.h>
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.Ve
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.Vb 2
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\& int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c);
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\& int SSL_add_session(SSL_CTX *ctx, SSL_SESSION *c);
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.Ve
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.Vb 2
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\& int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
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\& int SSL_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fISSL_CTX_add_session()\fR adds the session \fBc\fR to the context \fBctx\fR. The
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reference count for session \fBc\fR is incremented by 1. If a session with
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the same session id already exists, the old session is removed by calling
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SSL_SESSION_free(3).
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.PP
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\&\fISSL_CTX_remove_session()\fR removes the session \fBc\fR from the context \fBctx\fR.
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SSL_SESSION_free(3) is called once for \fBc\fR.
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.PP
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\&\fISSL_add_session()\fR and \fISSL_remove_session()\fR are synonyms for their
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SSL_CTX_*() counterparts.
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.SH "NOTES"
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.IX Header "NOTES"
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When adding a new session to the internal session cache, it is examined
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whether a session with the same session id already exists. In this case
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it is assumed that both sessions are identical. If the same session is
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stored in a different \s-1SSL_SESSION\s0 object, The old session is
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removed and replaced by the new session. If the session is actually
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identical (the \s-1SSL_SESSION\s0 object is identical), \fISSL_CTX_add_session()\fR
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is a no-op, and the return value is 0.
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.PP
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If a server \s-1SSL_CTX\s0 is configured with the \s-1SSL_SESS_CACHE_NO_INTERNAL_STORE\s0
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flag then the internal cache will not be populated automatically by new
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sessions negotiated by the \s-1SSL/TLS\s0 implementation, even though the internal
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cache will be searched automatically for session-resume requests (the
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latter can be surpressed by \s-1SSL_SESS_CACHE_NO_INTERNAL_LOOKUP\s0). So the
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application can use \fISSL_CTX_add_session()\fR directly to have full control
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over the sessions that can be resumed if desired.
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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The following values are returned by all functions:
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.Ip "0" 4
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.Vb 3
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\& The operation failed. In case of the add operation, it was tried to add
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\& the same (identical) session twice. In case of the remove operation, the
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\& session was not found in the cache.
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.Ve
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.Ip "1" 4
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.IX Item "1"
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.Vb 1
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\& The operation succeeded.
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.Ve
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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ssl(3),
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SSL_CTX_set_session_cache_mode(3),
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SSL_SESSION_free(3)
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