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.
202 lines
6.0 KiB
Groff
202 lines
6.0 KiB
Groff
.\" $NetBSD: SSL_clear.3,v 1.8 2003/07/24 14:16:45 itojun Exp $
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.\" Thu Jul 24 13:08:15 2003
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.\" ======================================================================
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.\"
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.IX Title "SSL_clear 3"
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.TH SSL_clear 3 "0.9.7b" "2002-02-27" "OpenSSL"
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.UC
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.SH "NAME"
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SSL_clear \- reset \s-1SSL\s0 object to allow another connection
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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 1
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\& int SSL_clear(SSL *ssl);
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.Ve
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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Reset \fBssl\fR to allow another connection. All settings (method, ciphers,
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BIOs) are kept.
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.SH "NOTES"
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.IX Header "NOTES"
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SSL_clear is used to prepare an \s-1SSL\s0 object for a new connection. While all
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settings are kept, a side effect is the handling of the current \s-1SSL\s0 session.
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If a session is still \fBopen\fR, it is considered bad and will be removed
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from the session cache, as required by \s-1RFC2246\s0. A session is considered open,
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if SSL_shutdown(3) was not called for the connection
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or at least SSL_set_shutdown(3) was used to
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set the \s-1SSL_SENT_SHUTDOWN\s0 state.
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.PP
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If a session was closed cleanly, the session object will be kept and all
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settings corresponding. This explicitly means, that e.g. the special method
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used during the session will be kept for the next handshake. So if the
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session was a TLSv1 session, a \s-1SSL\s0 client object will use a TLSv1 client
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method for the next handshake and a \s-1SSL\s0 server object will use a TLSv1
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server method, even if SSLv23_*_methods were chosen on startup. This
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will might lead to connection failures (see SSL_new(3))
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for a description of the method's properties.
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.SH "WARNINGS"
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.IX Header "WARNINGS"
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\&\fISSL_clear()\fR resets the \s-1SSL\s0 object to allow for another connection. The
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reset operation however keeps several settings of the last sessions
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(some of these settings were made automatically during the last
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handshake). It only makes sense when opening a new session (or reusing
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an old one) with the same peer that shares these settings.
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\&\fISSL_clear()\fR is not a short form for the sequence
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SSL_free(3); SSL_new(3); .
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.SH "RETURN VALUES"
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.IX Header "RETURN VALUES"
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The following return values can occur:
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.Ip "0" 4
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The \fISSL_clear()\fR operation could not be performed. Check the error stack to
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find out the reason.
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.Ip "1" 4
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.IX Item "1"
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The \fISSL_clear()\fR operation was successful.
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.PP
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SSL_new(3), SSL_free(3),
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SSL_shutdown(3), SSL_set_shutdown(3),
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SSL_CTX_set_options(3), ssl(3),
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SSL_CTX_set_client_cert_cb(3)
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