| /* |
| * include/types/connection.h |
| * This file describes the connection struct and associated constants. |
| * |
| * Copyright (C) 2000-2012 Willy Tarreau - w@1wt.eu |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation, version 2.1 |
| * exclusively. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _TYPES_CONNECTION_H |
| #define _TYPES_CONNECTION_H |
| |
| #include <stdlib.h> |
| #include <sys/socket.h> |
| |
| #include <common/config.h> |
| |
| /* referenced below */ |
| struct sock_ops; |
| struct protocol; |
| |
| /* flags for use in connection->flags */ |
| enum { |
| CO_FL_NONE = 0x00000000, |
| CO_FL_ERROR = 0x00000001, /* a fatal error was reported */ |
| CO_FL_WAIT_L4_CONN = 0x00000002, /* waiting for L4 to be connected */ |
| /* flags below are used for connection handshakes */ |
| CO_FL_SI_SEND_PROXY = 0x00000004, /* send a valid PROXY protocol header */ |
| }; |
| |
| /* This structure describes a connection with its methods and data. |
| * A connection may be performed to proxy or server via a local or remote |
| * socket, and can also be made to an internal applet. It can support |
| * several data schemes (applet, raw, ssl, ...). It can support several |
| * connection control schemes, generally a protocol for socket-oriented |
| * connections, but other methods for applets. |
| */ |
| struct connection { |
| const struct sock_ops *data; /* operations at the data layer */ |
| const struct protocol *ctrl; /* operations at the control layer, generally a protocol */ |
| union { /* definitions which depend on connection type */ |
| struct { /*** information used by socket-based connections ***/ |
| int fd; /* file descriptor for a stream driver when known */ |
| } sock; |
| } t; |
| unsigned int flags; /* CO_F_* */ |
| int data_st; /* data layer state, initialized to zero */ |
| void *data_ctx; /* general purpose pointer, initialized to NULL */ |
| struct sockaddr *peeraddr; /* pointer to peer's network address, or NULL if unset */ |
| socklen_t peerlen; /* peer's address length, or 0 if unset */ |
| }; |
| |
| #endif /* _TYPES_CONNECTION_H */ |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |