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altcp_priv.h
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1 /**
2  * @file
3  * Application layered TCP connection API (to be used from TCPIP thread)\n
4  * This interface mimics the tcp callback API to the application while preventing
5  * direct linking (much like virtual functions).
6  * This way, an application can make use of other application layer protocols
7  * on top of TCP without knowing the details (e.g. TLS, proxy connection).
8  */
9 
10 /*
11  * Copyright (c) 2017 Simon Goldschmidt
12  * All rights reserved.
13  *
14  * Redistribution and use in source and binary forms, with or without modification,
15  * are permitted provided that the following conditions are met:
16  *
17  * 1. Redistributions of source code must retain the above copyright notice,
18  * this list of conditions and the following disclaimer.
19  * 2. Redistributions in binary form must reproduce the above copyright notice,
20  * this list of conditions and the following disclaimer in the documentation
21  * and/or other materials provided with the distribution.
22  * 3. The name of the author may not be used to endorse or promote products
23  * derived from this software without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
28  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
30  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
33  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
34  * OF SUCH DAMAGE.
35  *
36  * This file is part of the lwIP TCP/IP stack.
37  *
38  * Author: Simon Goldschmidt <goldsimon@gmx.de>
39  *
40  */
41 #ifndef LWIP_HDR_ALTCP_PRIV_H
42 #define LWIP_HDR_ALTCP_PRIV_H
43 
44 #include "lwip/opt.h"
45 
46 #if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
47 
48 #include "lwip/altcp.h"
49 #include "lwip/ip_addr.h"
50 
51 #ifdef __cplusplus
52 extern "C" {
53 #endif
54 
55 struct altcp_pcb *altcp_alloc(void);
56 void altcp_free(struct altcp_pcb *conn);
57 
58 /* Function prototypes for application layers */
59 typedef void (*altcp_set_poll_fn)(struct altcp_pcb *conn, u8_t interval);
60 typedef void (*altcp_recved_fn)(struct altcp_pcb *conn, u16_t len);
61 typedef err_t (*altcp_bind_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
62 typedef err_t (*altcp_connect_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected);
63 
64 typedef struct altcp_pcb *(*altcp_listen_fn)(struct altcp_pcb *conn, u8_t backlog, err_t *err);
65 
66 typedef void (*altcp_abort_fn)(struct altcp_pcb *conn);
67 typedef err_t (*altcp_close_fn)(struct altcp_pcb *conn);
68 typedef err_t (*altcp_shutdown_fn)(struct altcp_pcb *conn, int shut_rx, int shut_tx);
69 
70 typedef err_t (*altcp_write_fn)(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
71 typedef err_t (*altcp_output_fn)(struct altcp_pcb *conn);
72 
73 typedef u16_t (*altcp_mss_fn)(struct altcp_pcb *conn);
74 typedef u16_t (*altcp_sndbuf_fn)(struct altcp_pcb *conn);
75 typedef u16_t (*altcp_sndqueuelen_fn)(struct altcp_pcb *conn);
76 typedef void (*altcp_nagle_disable_fn)(struct altcp_pcb *conn);
77 typedef void (*altcp_nagle_enable_fn)(struct altcp_pcb *conn);
78 typedef int (*altcp_nagle_disabled_fn)(struct altcp_pcb *conn);
79 
80 typedef void (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio);
81 
82 typedef void (*altcp_dealloc_fn)(struct altcp_pcb *conn);
83 
84 typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
85 typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local);
86 typedef u16_t (*altcp_get_port_fn)(struct altcp_pcb *conn, int local);
87 
88 #ifdef LWIP_DEBUG
89 typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn);
90 #endif
91 
92 struct altcp_functions {
93  altcp_set_poll_fn set_poll;
94  altcp_recved_fn recved;
95  altcp_bind_fn bind;
96  altcp_connect_fn connect;
97  altcp_listen_fn listen;
98  altcp_abort_fn abort;
99  altcp_close_fn close;
100  altcp_shutdown_fn shutdown;
101  altcp_write_fn write;
102  altcp_output_fn output;
103  altcp_mss_fn mss;
104  altcp_sndbuf_fn sndbuf;
105  altcp_sndqueuelen_fn sndqueuelen;
106  altcp_nagle_disable_fn nagle_disable;
107  altcp_nagle_enable_fn nagle_enable;
108  altcp_nagle_disabled_fn nagle_disabled;
109  altcp_setprio_fn setprio;
110  altcp_dealloc_fn dealloc;
111  altcp_get_tcp_addrinfo_fn addrinfo;
112  altcp_get_ip_fn getip;
113  altcp_get_port_fn getport;
114 #ifdef LWIP_DEBUG
115  altcp_dbg_get_tcp_state_fn dbg_get_tcp_state;
116 #endif
117 };
118 
119 void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval);
120 void altcp_default_recved(struct altcp_pcb *conn, u16_t len);
121 err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
122 err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx);
123 err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
124 err_t altcp_default_output(struct altcp_pcb *conn);
125 u16_t altcp_default_mss(struct altcp_pcb *conn);
126 u16_t altcp_default_sndbuf(struct altcp_pcb *conn);
127 u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn);
128 void altcp_default_nagle_disable(struct altcp_pcb *conn);
129 void altcp_default_nagle_enable(struct altcp_pcb *conn);
130 int altcp_default_nagle_disabled(struct altcp_pcb *conn);
131 void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio);
132 void altcp_default_dealloc(struct altcp_pcb *conn);
133 err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
134 ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local);
135 u16_t altcp_default_get_port(struct altcp_pcb *conn, int local);
136 #ifdef LWIP_DEBUG
137 enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn);
138 #endif
139 
140 #ifdef __cplusplus
141 }
142 #endif
143 
144 #endif /* LWIP_ALTCP */
145 
146 #endif /* LWIP_HDR_ALTCP_PRIV_H */
opt.h
lwIP Options Configuration
err_t
s8_t err_t
Define LWIP_ERR_T in cc.h if you want to use a different type for your platform (must be signed)...
Definition: err.h:96
altcp.h
Application layered TCP connection API (to be used from TCPIP thread) .
nsapi_addr
IP address structure for passing IP addresses by value.
Definition: nsapi_types.h:235
ip_addr.h
IP address API (common IPv4 and IPv6)
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