Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 1 | /* |
Willy Tarreau | 8e89b84 | 2009-10-18 23:56:35 +0200 | [diff] [blame] | 2 | * include/proto/stream_interface.h |
| 3 | * This file contains stream_interface function prototypes |
| 4 | * |
Willy Tarreau | f873d75 | 2012-05-11 17:47:17 +0200 | [diff] [blame] | 5 | * Copyright (C) 2000-2012 Willy Tarreau - w@1wt.eu |
Willy Tarreau | 8e89b84 | 2009-10-18 23:56:35 +0200 | [diff] [blame] | 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation, version 2.1 |
| 10 | * exclusively. |
| 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with this library; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 21 | |
| 22 | #ifndef _PROTO_STREAM_INTERFACE_H |
| 23 | #define _PROTO_STREAM_INTERFACE_H |
| 24 | |
| 25 | #include <stdlib.h> |
| 26 | |
| 27 | #include <common/config.h> |
Willy Tarreau | 2c6be84 | 2012-07-06 17:12:34 +0200 | [diff] [blame] | 28 | #include <types/session.h> |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 29 | #include <types/stream_interface.h> |
Willy Tarreau | 14f8e86 | 2012-08-30 22:23:13 +0200 | [diff] [blame] | 30 | #include <proto/channel.h> |
Willy Tarreau | f9dabec | 2012-08-17 17:33:53 +0200 | [diff] [blame] | 31 | #include <proto/connection.h> |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 32 | |
| 33 | |
| 34 | /* main event functions used to move data between sockets and buffers */ |
Willy Tarreau | 269358d | 2009-09-20 20:14:49 +0200 | [diff] [blame] | 35 | int stream_int_check_timeouts(struct stream_interface *si); |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 36 | void stream_int_report_error(struct stream_interface *si); |
Willy Tarreau | dded32d | 2008-11-30 19:48:07 +0100 | [diff] [blame] | 37 | void stream_int_retnclose(struct stream_interface *si, const struct chunk *msg); |
Willy Tarreau | 2c6be84 | 2012-07-06 17:12:34 +0200 | [diff] [blame] | 38 | int conn_si_send_proxy(struct connection *conn, unsigned int flag); |
Willy Tarreau | 100c467 | 2012-08-20 12:06:26 +0200 | [diff] [blame] | 39 | void conn_notify_si(struct connection *conn); |
Willy Tarreau | 4a36b56 | 2012-08-06 19:31:45 +0200 | [diff] [blame] | 40 | int stream_int_shutr(struct stream_interface *si); |
| 41 | int stream_int_shutw(struct stream_interface *si); |
Willy Tarreau | ce323de | 2012-08-20 21:41:06 +0200 | [diff] [blame] | 42 | void si_conn_recv_cb(struct connection *conn); |
Willy Tarreau | eecf6ca | 2012-08-20 15:09:53 +0200 | [diff] [blame] | 43 | void si_conn_send_cb(struct connection *conn); |
Willy Tarreau | 9bf9c14 | 2012-08-20 15:38:41 +0200 | [diff] [blame] | 44 | void stream_sock_read0(struct stream_interface *si); |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 45 | |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 46 | extern struct si_ops si_embedded_ops; |
| 47 | extern struct si_ops si_task_ops; |
| 48 | extern struct si_ops si_conn_ops; |
| 49 | extern struct app_cb si_conn_cb; |
Willy Tarreau | 5c979a9 | 2012-05-07 17:15:39 +0200 | [diff] [blame] | 50 | |
Willy Tarreau | fb90d94 | 2009-09-05 20:57:35 +0200 | [diff] [blame] | 51 | struct task *stream_int_register_handler(struct stream_interface *si, |
Willy Tarreau | b24281b | 2011-02-13 13:16:36 +0100 | [diff] [blame] | 52 | struct si_applet *app); |
Willy Tarreau | fb90d94 | 2009-09-05 20:57:35 +0200 | [diff] [blame] | 53 | struct task *stream_int_register_handler_task(struct stream_interface *si, |
| 54 | struct task *(*fct)(struct task *)); |
| 55 | void stream_int_unregister_handler(struct stream_interface *si); |
| 56 | |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 57 | static inline const struct protocol *si_ctrl(struct stream_interface *si) |
| 58 | { |
| 59 | return si->conn.ctrl; |
| 60 | } |
| 61 | |
Willy Tarreau | fb7508a | 2012-05-21 16:47:54 +0200 | [diff] [blame] | 62 | static inline int si_fd(struct stream_interface *si) |
| 63 | { |
| 64 | return si->conn.t.sock.fd; |
| 65 | } |
| 66 | |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 67 | static inline void si_prepare_conn(struct stream_interface *si, const struct protocol *ctrl, const struct data_ops *ops) |
Willy Tarreau | 5c979a9 | 2012-05-07 17:15:39 +0200 | [diff] [blame] | 68 | { |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 69 | si->ops = &si_conn_ops; |
Willy Tarreau | dda5e7c | 2012-09-24 17:15:42 +0200 | [diff] [blame] | 70 | conn_prepare(&si->conn, &si_conn_cb, ctrl, ops); |
Willy Tarreau | 5c979a9 | 2012-05-07 17:15:39 +0200 | [diff] [blame] | 71 | } |
| 72 | |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 73 | static inline void si_prepare_embedded(struct stream_interface *si) |
| 74 | { |
| 75 | si->ops = &si_embedded_ops; |
Willy Tarreau | dda5e7c | 2012-09-24 17:15:42 +0200 | [diff] [blame] | 76 | conn_prepare(&si->conn, NULL, NULL, NULL); |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | static inline void si_prepare_task(struct stream_interface *si) |
| 80 | { |
| 81 | si->ops = &si_task_ops; |
Willy Tarreau | dda5e7c | 2012-09-24 17:15:42 +0200 | [diff] [blame] | 82 | conn_prepare(&si->conn, NULL, NULL, NULL); |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 83 | } |
Willy Tarreau | 59b9479 | 2012-05-11 16:16:40 +0200 | [diff] [blame] | 84 | |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 85 | /* Sends a shutr to the connection using the data layer */ |
| 86 | static inline void si_shutr(struct stream_interface *si) |
| 87 | { |
Willy Tarreau | 4a36b56 | 2012-08-06 19:31:45 +0200 | [diff] [blame] | 88 | if (stream_int_shutr(si)) |
Willy Tarreau | f9dabec | 2012-08-17 17:33:53 +0200 | [diff] [blame] | 89 | conn_data_stop_recv(&si->conn); |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | /* Sends a shutw to the connection using the data layer */ |
| 93 | static inline void si_shutw(struct stream_interface *si) |
| 94 | { |
Willy Tarreau | 4a36b56 | 2012-08-06 19:31:45 +0200 | [diff] [blame] | 95 | if (stream_int_shutw(si)) |
Willy Tarreau | f9dabec | 2012-08-17 17:33:53 +0200 | [diff] [blame] | 96 | conn_data_stop_send(&si->conn); |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | /* Calls the data state update on the stream interfaace */ |
| 100 | static inline void si_update(struct stream_interface *si) |
| 101 | { |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 102 | si->ops->update(si); |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | /* Calls chk_rcv on the connection using the data layer */ |
| 106 | static inline void si_chk_rcv(struct stream_interface *si) |
| 107 | { |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 108 | si->ops->chk_rcv(si); |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | /* Calls chk_snd on the connection using the data layer */ |
| 112 | static inline void si_chk_snd(struct stream_interface *si) |
| 113 | { |
Willy Tarreau | c578891 | 2012-08-24 18:12:41 +0200 | [diff] [blame] | 114 | si->ops->chk_snd(si); |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | /* Calls chk_snd on the connection using the ctrl layer */ |
| 118 | static inline int si_connect(struct stream_interface *si) |
| 119 | { |
Willy Tarreau | 14f8e86 | 2012-08-30 22:23:13 +0200 | [diff] [blame] | 120 | int ret; |
| 121 | |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 122 | if (unlikely(!si_ctrl(si) || !si_ctrl(si)->connect)) |
| 123 | return SN_ERR_INTERNAL; |
Willy Tarreau | 14f8e86 | 2012-08-30 22:23:13 +0200 | [diff] [blame] | 124 | |
| 125 | ret = si_ctrl(si)->connect(&si->conn, !channel_is_empty(si->ob)); |
| 126 | if (ret != SN_ERR_NONE) |
| 127 | return ret; |
| 128 | |
| 129 | /* needs src ip/port for logging */ |
| 130 | if (si->flags & SI_FL_SRC_ADDR) |
| 131 | conn_get_from_addr(&si->conn); |
| 132 | |
| 133 | /* Prepare to send a few handshakes related to the on-wire protocol. */ |
| 134 | if (si->send_proxy_ofs) |
| 135 | si->conn.flags |= CO_FL_SI_SEND_PROXY; |
| 136 | |
| 137 | /* we need to be notified about connection establishment */ |
| 138 | si->conn.flags |= CO_FL_NOTIFY_SI; |
| 139 | |
| 140 | /* we're in the process of establishing a connection */ |
| 141 | si->state = SI_ST_CON; |
| 142 | |
| 143 | return ret; |
Willy Tarreau | 73b013b | 2012-05-21 16:31:45 +0200 | [diff] [blame] | 144 | } |
Willy Tarreau | 59b9479 | 2012-05-11 16:16:40 +0200 | [diff] [blame] | 145 | |
Willy Tarreau | cff6411 | 2008-11-03 06:26:53 +0100 | [diff] [blame] | 146 | #endif /* _PROTO_STREAM_INTERFACE_H */ |
| 147 | |
| 148 | /* |
| 149 | * Local variables: |
| 150 | * c-indent-level: 8 |
| 151 | * c-basic-offset: 8 |
| 152 | * End: |
| 153 | */ |