RetroArch
udp.h
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1 /*
2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  * derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * This file is part of the lwIP TCP/IP stack.
28  *
29  * Author: Adam Dunkels <[email protected]>
30  *
31  */
32 #ifndef __LWIP_UDP_H__
33 #define __LWIP_UDP_H__
34 
35 #include "lwip/arch.h"
36 
37 #include "lwip/pbuf.h"
38 #include "lwip/inet.h"
39 #include "lwip/ip.h"
40 
41 #define UDP_HLEN 8
42 
43 struct udp_hdr {
45  PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
49 
50 #define UDP_FLAGS_NOCHKSUM 0x01U
51 #define UDP_FLAGS_UDPLITE 0x02U
52 #define UDP_FLAGS_CONNECTED 0x04U
53 
54 struct udp_pcb {
55 /* Common members of all PCB types */
57 
58 /* Protocol specific PCB members */
59 
60  struct udp_pcb *next;
61 
64 
66 
67  void (* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
68  struct ip_addr *addr, u16_t port);
69  void *recv_arg;
70 };
71 
72 /* The following functions is the application layer interface to the
73  UDP code. */
74 struct udp_pcb * udp_new (void);
75 void udp_remove (struct udp_pcb *pcb);
76 err_t udp_bind (struct udp_pcb *pcb, struct ip_addr *ipaddr,
77  u16_t port);
78 err_t udp_connect (struct udp_pcb *pcb, struct ip_addr *ipaddr,
79  u16_t port);
80 void udp_disconnect (struct udp_pcb *pcb);
81 void udp_recv (struct udp_pcb *pcb,
82  void (* recv)(void *arg, struct udp_pcb *upcb,
83  struct pbuf *p,
84  struct ip_addr *addr,
85  u16_t port),
86  void *recv_arg);
87 err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port);
88 err_t udp_send (struct udp_pcb *pcb, struct pbuf *p);
89 
90 #define udp_flags(pcb) ((pcb)->flags)
91 #define udp_setflags(pcb, f) ((pcb)->flags = (f))
92 
93 /* The following functions are the lower layer interface to UDP. */
94 void udp_input (struct pbuf *p, struct netif *inp);
95 void udp_init (void);
96 
97 #if UDP_DEBUG
98 void udp_debug_print(struct udp_hdr *udphdr);
99 #else
100 #define udp_debug_print(udphdr)
101 #endif
102 #endif /* __LWIP_UDP_H__ */
103 
104 
err_t udp_sendto(struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *dst_ip, u16_t dst_port)
PACK_STRUCT_FIELD(u16_t src)
static u32_t chksum(void *dataptr, u16_t len)
Definition: inet6.c:59
s8_t err_t
Definition: err.h:39
Definition: ip_addr.h:41
u8_t flags
Definition: udp.h:62
u16_t remote_port
Definition: udp.h:63
void * recv_arg
Definition: udp.h:69
GLenum GLsizei len
Definition: glext.h:7389
Definition: udp.h:54
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Definition: msg_hash_us.h:7699
err_t udp_send(struct udp_pcb *pcb, struct pbuf *p)
#define udp_debug_print(udphdr)
Definition: udp.h:100
typedef void(__stdcall *PFN_DESTRUCTION_CALLBACK)(void *pData)
Definition: netif.h:72
Definition: udp.h:43
ssize_t recv(int sockfd, void *buf, size_t len, int flags)
void udp_recv(struct udp_pcb *pcb, void(*recv)(void *arg, struct udp_pcb *upcb, struct pbuf *p, struct ip_addr *addr, u16_t port), void *recv_arg)
GLenum const GLvoid * addr
Definition: glext.h:10528
IP_PCB
Definition: udp.h:56
void udp_disconnect(struct udp_pcb *pcb)
GLenum src
Definition: glext.h:6980
u16_t chksum_len
Definition: udp.h:65
GLfloat GLfloat p
Definition: glext.h:9809
u8 u8_t
Definition: cc.h:43
void(* recv)(void *arg, struct udp_pcb *pcb, struct pbuf *p, struct ip_addr *addr, u16_t port)
Definition: udp.h:67
struct udp_pcb * next
Definition: udp.h:60
err_t udp_bind(struct udp_pcb *pcb, struct ip_addr *ipaddr, u16_t port)
err_t udp_connect(struct udp_pcb *pcb, struct ip_addr *ipaddr, u16_t port)
void udp_input(struct pbuf *p, struct netif *inp)
struct udp_pcb * udp_new(void)
u16_t local_port
Definition: udp.h:63
void udp_remove(struct udp_pcb *pcb)
void udp_init(void)
struct udp_hdr PACK_STRUCT_STRUCT
u16 u16_t
Definition: cc.h:45
Definition: pbuf.h:66