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c76ae33bfc
Handshakes is not called anymore from the data handlers, they're only called from the connection handler when their flag is set. Also, this move has uncovered an issue with the stream interface notifier : it doesn't consider the FD_WAIT_* flags possibly set by the handshake handlers. This will result in a stuck handshake when no data is in the output buffer. In order to cover this, for now we'll perform the EV_FD_SET in the SSL handshake function, but this needs to be addressed separately from the stream interface operations.
80 lines
3 KiB
C
80 lines
3 KiB
C
/*
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* include/types/connection.h
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* This file describes the connection struct and associated constants.
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*
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* Copyright (C) 2000-2012 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_CONNECTION_H
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#define _TYPES_CONNECTION_H
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#include <stdlib.h>
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#include <sys/socket.h>
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#include <common/config.h>
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/* referenced below */
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struct sock_ops;
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struct protocol;
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/* flags for use in connection->flags */
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enum {
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CO_FL_NONE = 0x00000000,
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CO_FL_ERROR = 0x00000001, /* a fatal error was reported */
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CO_FL_CONNECTED = 0x00000002, /* the connection is now established */
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CO_FL_WAIT_L4_CONN = 0x00000004, /* waiting for L4 to be connected */
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CO_FL_WAIT_L6_CONN = 0x00000008, /* waiting for L6 to be connected (eg: SSL) */
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CO_FL_NOTIFY_SI = 0x00000010, /* notify stream interface about changes */
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/* flags below are used for connection handshakes */
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CO_FL_SI_SEND_PROXY = 0x00000020, /* send a valid PROXY protocol header */
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/* below we have all handshake flags grouped into one */
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CO_FL_HANDSHAKE = CO_FL_SI_SEND_PROXY,
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};
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/* This structure describes a connection with its methods and data.
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* A connection may be performed to proxy or server via a local or remote
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* socket, and can also be made to an internal applet. It can support
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* several data schemes (applet, raw, ssl, ...). It can support several
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* connection control schemes, generally a protocol for socket-oriented
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* connections, but other methods for applets.
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*/
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struct connection {
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const struct sock_ops *data; /* operations at the data layer */
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const struct protocol *ctrl; /* operations at the control layer, generally a protocol */
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union { /* definitions which depend on connection type */
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struct { /*** information used by socket-based connections ***/
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int fd; /* file descriptor for a stream driver when known */
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} sock;
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} t;
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unsigned int flags; /* CO_F_* */
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int data_st; /* data layer state, initialized to zero */
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void *data_ctx; /* general purpose pointer, initialized to NULL */
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struct sockaddr *peeraddr; /* pointer to peer's network address, or NULL if unset */
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socklen_t peerlen; /* peer's address length, or 0 if unset */
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};
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#endif /* _TYPES_CONNECTION_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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