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[dragonfly.git] / secure / lib / libssl / man / SSL_CTX_add_session.3
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80.\" If the F register is turned on, we'll generate
81.\" index entries out stderr for the following things:
82.\" TH Title
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96.TH SSL_CTX_add_session 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
97.UC
98.if n .hy 0
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188.\}
189.rm #[ #] #H #V #F C
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190.SH "NAME"
191SSL_CTX_add_session, SSL_add_session, SSL_CTX_remove_session, SSL_remove_session \- manipulate session cache
192.SH "SYNOPSIS"
a7d27d5a 193.PP
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194.Vb 1
195\& #include <openssl/ssl.h>
196.Ve
197.Vb 2
198\& int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c);
199\& int SSL_add_session(SSL_CTX *ctx, SSL_SESSION *c);
200.Ve
201.Vb 2
202\& int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
203\& int SSL_remove_session(SSL_CTX *ctx, SSL_SESSION *c);
204.Ve
205.SH "DESCRIPTION"
a7d27d5a 206\fISSL_CTX_add_session()\fR adds the session \fBc\fR to the context \fBctx\fR. The
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207reference count for session \fBc\fR is incremented by 1. If a session with
208the same session id already exists, the old session is removed by calling
209SSL_SESSION_free(3).
210.PP
a7d27d5a 211\fISSL_CTX_remove_session()\fR removes the session \fBc\fR from the context \fBctx\fR.
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212SSL_SESSION_free(3) is called once for \fBc\fR.
213.PP
a7d27d5a 214\fISSL_add_session()\fR and \fISSL_remove_session()\fR are synonyms for their
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215SSL_CTX_*() counterparts.
216.SH "NOTES"
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217When adding a new session to the internal session cache, it is examined
218whether a session with the same session id already exists. In this case
219it is assumed that both sessions are identical. If the same session is
a7d27d5a 220stored in a different SSL_SESSION object, The old session is
984263bc 221removed and replaced by the new session. If the session is actually
a7d27d5a 222identical (the SSL_SESSION object is identical), \fISSL_CTX_add_session()\fR
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223is a no-op, and the return value is 0.
224.PP
a7d27d5a 225If a server SSL_CTX is configured with the SSL_SESS_CACHE_NO_INTERNAL_STORE
984263bc 226flag then the internal cache will not be populated automatically by new
a7d27d5a 227sessions negotiated by the SSL/TLS implementation, even though the internal
984263bc 228cache will be searched automatically for session-resume requests (the
a7d27d5a 229latter can be surpressed by SSL_SESS_CACHE_NO_INTERNAL_LOOKUP). So the
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230application can use \fISSL_CTX_add_session()\fR directly to have full control
231over the sessions that can be resumed if desired.
232.SH "RETURN VALUES"
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233The following values are returned by all functions:
234.Ip "0" 4
a7d27d5a 235.Sp
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236.Vb 3
237\& The operation failed. In case of the add operation, it was tried to add
238\& the same (identical) session twice. In case of the remove operation, the
239\& session was not found in the cache.
240.Ve
a7d27d5a 241.Ip "1 The operation succeeded." 4
984263bc 242.SH "SEE ALSO"
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243ssl(3),
244SSL_CTX_set_session_cache_mode(3),
245SSL_SESSION_free(3)
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246
247.rn }` ''
248.IX Title "SSL_CTX_add_session 3"
249.IX Name "SSL_CTX_add_session, SSL_add_session, SSL_CTX_remove_session, SSL_remove_session - manipulate session cache"
250
251.IX Header "NAME"
252
253.IX Header "SYNOPSIS"
254
255.IX Header "DESCRIPTION"
256
257.IX Header "NOTES"
258
259.IX Header "RETURN VALUES"
260
261.IX Item "0"
262
263.IX Item "1 The operation succeeded."
264
265.IX Header "SEE ALSO"
266