Add newly learned knowledge from yesterday's discussion.

doc/ssl/SSL_CTX_new.pod

@@ -59,6 +59,10 @@ choice when compatibility is a concern.
 
 =back
 
+If a generic method is used, it is necessary to explicitly set client or
+server mode with L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>
+or SSL_set_accept_state().
+
 The list of protocols available can later be limited using the SSL_OP_NO_SSLv2,
 SSL_OP_NO_SSLv3, SSL_OP_NO_TLSv1 options of the B<SSL_CTX_set_options()> or
 B<SSL_set_options()> functions. Using these options it is possible to choose
@@ -89,6 +93,6 @@ The return value points to an allocated SSL_CTX object.
 =head1 SEE ALSO
 
 L<SSL_CTX_free(3)|SSL_CTX_free(3)>, L<SSL_accept(3)|SSL_accept(3)>,
-L<ssl(3)|ssl(3)>
+L<ssl(3)|ssl(3)>,  L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>
 
 =cut

doc/ssl/SSL_CTX_set_ssl_version.pod

@@ -17,8 +17,8 @@ SSL_CTX_set_ssl_version, SSL_set_ssl_method, SSL_get_ssl_method
 
 SSL_CTX_set_ssl_version() sets a new default TLS/SSL B<method> for SSL objects
 newly created from this B<ctx>. SSL objects already created with
-L<SSL_new(3)|SSL_new(3)> are not affected, except when SSL_clear() is
-being called.
+L<SSL_new(3)|SSL_new(3)> are not affected, except when
+L<SSL_clear(3)|SSL_clear(3)> is being called.
 
 SSL_set_ssl_method() sets a new TLS/SSL B<method> for a particular B<ssl>
 object. It may be reset, when SSL_clear() is called.
@@ -31,9 +31,9 @@ set in B<ssl>.
 The available B<method> choices are described in
 L<SSL_CTX_new(3)|SSL_CTX_new(3)>.
 
-When SSL_clear() is called and no session is connected to an SSL object,
-the method of the SSL object is reset to the method currently set in
-the corresponding SSL_CTX object.
+When L<SSL_clear(3)|SSL_clear(3)> is called and no session is connected to
+an SSL object, the method of the SSL object is reset to the method currently
+set in the corresponding SSL_CTX object.
 
 =head1 RETURN VALUES
 
@@ -55,6 +55,7 @@ The operation succeeded.
 =head1 SEE ALSO
 
 L<SSL_CTX_new(3)|SSL_CTX_new(3)>, L<SSL_new(3)|SSL_new(3)>,
-L<SSL_clear(3)|SSL_clear(3)>, L<ssl(3)|ssl(3)>
+L<SSL_clear(3)|SSL_clear(3)>, L<ssl(3)|ssl(3)>,
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>
 
 =cut

doc/ssl/SSL_accept.pod

@@ -37,6 +37,11 @@ nothing is to be done, but select() can be used to check for the required
 condition. When using a buffering BIO, like a BIO pair, data must be written
 into or retrieved out of the BIO before being able to continue.
 
+When using a generic method (see L<SSL_CTX_new(3)|SSL_CTX_new(3)>), it
+is necessary to call SSL_set_accept_state()
+before calling SSL_accept() to explicitly switch the B<ssl> to server
+mode.
+
 =head1 RETURN VALUES
 
 The following return values can occur:
@@ -67,6 +72,8 @@ to find out the reason.
 =head1 SEE ALSO
 
 L<SSL_get_error(3)|SSL_get_error(3)>, L<SSL_connect(3)|SSL_connect(3)>,
-L<SSL_shutdown(3)|SSL_shutdown(3)>, L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>
+L<SSL_shutdown(3)|SSL_shutdown(3)>, L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>,
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
+L<SSL_CTX_new(3)|SSL_CTX_new(3)>
 
 =cut

doc/ssl/SSL_connect.pod

@@ -34,6 +34,11 @@ nothing is to be done, but select() can be used to check for the required
 condition. When using a buffering BIO, like a BIO pair, data must be written
 into or retrieved out of the BIO before being able to continue.
 
+When using a generic method (see L<SSL_CTX_new(3)|SSL_CTX_new(3)>), it
+is necessary to call L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>
+before calling SSL_connect() to explicitly switch the B<ssl> to client
+mode.
+
 =head1 RETURN VALUES
 
 The following return values can occur:
@@ -64,6 +69,8 @@ to find out the reason.
 =head1 SEE ALSO
 
 L<SSL_get_error(3)|SSL_get_error(3)>, L<SSL_accept(3)|SSL_accept(3)>,
-L<SSL_shutdown(3)|SSL_shutdown(3)>, L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>
+L<SSL_shutdown(3)|SSL_shutdown(3)>, L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>,
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
+L<SSL_CTX_new(3)|SSL_CTX_new(3)>
 
 =cut

doc/ssl/SSL_read.pod

@@ -18,11 +18,19 @@ buffer B<buf>.
 =head1 NOTES
 
 If necessary, SSL_read() will negotiate a TLS/SSL session, if
-not already explicitly performed by SSL_connect() or SSL_accept(). If the
+not already explicitly performed by L<SSL_connect(3)|SSL_connect(3)> or
+L<SSL_accept(3)|SSL_accept(3)>. If the
 peer requests a re-negotiation, it will be performed transparently during
 the SSL_read() operation. The behaviour of SSL_read() depends on the
 underlying BIO. 
 
+For the transparent negotiation to succeed, the B<ssl> must have been
+initialized to client or server mode. This is not the case if a generic
+method is being used (see L<SSL_CTX_new(3)|SSL_CTX_new(3)>, so that
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)> or SSL_set_accept_state()
+must be used before the first call to an SSL_read() or
+L<SSL_write(3)|SSL_write(3)> function.
+
 If the underlying BIO is B<blocking>, SSL_read() will only return, once the
 read operation has been finished or an error occurred, except when a
 renegotiation take place, in which case a SSL_ERROR_WANT_READ may occur. 
@@ -31,7 +39,8 @@ L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)> call.
 
 If the underlying BIO is B<non-blocking>, SSL_read() will also return
 when the underlying BIO could not satisfy the needs of SSL_read()
-to continue the operation. In this case a call to SSL_get_error() with the
+to continue the operation. In this case a call to
+L<SSL_get_error(3)|SSL_get_error(3)> with the
 return value of SSL_read() will yield B<SSL_ERROR_WANT_READ> or
 B<SSL_ERROR_WANT_WRITE>. As at any time a re-negotiation is possible, a
 call to SSL_read() can also cause write operations! The calling process
@@ -75,7 +84,9 @@ return value B<ret> to find out the reason.
 =head1 SEE ALSO
 
 L<SSL_get_error(3)|SSL_get_error(3)>, L<SSL_write(3)|SSL_write(3)>,
-L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)>,
+L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)>, L<SSL_CTX_new(3)|SSL_CTX_new(3)>,
+L<SSL_connect(3)|SSL_connect(3)>, L<SSL_accept(3)|SSL_accept(3)>
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
 L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>
 
 =cut

doc/ssl/SSL_write.pod

@@ -18,11 +18,19 @@ B<ssl> connection.
 =head1 NOTES
 
 If necessary, SSL_write() will negotiate a TLS/SSL session, if
-not already explicitly performed by SSL_connect() or SSL_accept(). If the
+not already explicitly performed by L<SSL_connect(3)|SSL_connect(3)> or
+L<SSL_accept(3)|SSL_accept(3)>. If the
 peer requests a re-negotiation, it will be performed transparently during
 the SSL_write() operation. The behaviour of SSL_write() depends on the
 underlying BIO. 
 
+For the transparent negotiation to succeed, the B<ssl> must have been
+initialized to client or server mode. This is not the case if a generic
+method is being used (see L<SSL_CTX_new(3)|SSL_CTX_new(3)>, so that
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)> or SSL_set_accept_state()
+must be used before the first call to an L<SSL_read(3)|SSL_read(3)>
+or SSL_write() function.
+
 If the underlying BIO is B<blocking>, SSL_write() will only return, once the
 write operation has been finished or an error occurred, except when a
 renegotiation take place, in which case a SSL_ERROR_WANT_READ may occur. 
@@ -31,7 +39,8 @@ L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)> call.
 
 If the underlying BIO is B<non-blocking>, SSL_write() will also return,
 when the underlying BIO could not satisfy the needs of SSL_write()
-to continue the operation. In this case a call to SSL_get_error() with the
+to continue the operation. In this case a call to
+L<SSL_get_error(3)|SSL_get_error(3)> with the
 return value of SSL_write() will yield B<SSL_ERROR_WANT_READ> or
 B<SSL_ERROR_WANT_WRITE>. As at any time a re-negotiation is possible, a
 call to SSL_write() can also cause read operations! The calling process
@@ -74,7 +83,9 @@ return value B<ret> to find out the reason.
 =head1 SEE ALSO
 
 L<SSL_get_error(3)|SSL_get_error(3)>, L<SSL_read(3)|SSL_read(3)>,
-L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)>,
+L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)>, L<SSL_CTX_new(3)|SSL_CTX_new(3)>,
+L<SSL_connect(3)|SSL_connect(3)>, L<SSL_accept(3)|SSL_accept(3)>
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
 L<ssl(3)|ssl(3)>, L<bio(3)|bio(3)>
 
 =cut

doc/ssl/ssl.pod

@@ -687,6 +687,7 @@ L<SSL_library_init(3)|SSL_library_init(3)>,
 L<SSL_load_client_CA_file(3)|SSL_load_client_CA_file(3)>,
 L<SSL_new(3)|SSL_new(3)>,
 L<SSL_read(3)|SSL_read(3)>, L<SSL_set_bio(3)|SSL_set_bio(3)>,
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
 L<SSL_set_fd(3)|SSL_set_fd(3)>, L<SSL_pending(3)|SSL_pending(3)>,
 L<SSL_set_session(3)|SSL_set_session(3)>,
 L<SSL_set_shutdown(3)|SSL_set_shutdown(3)>,