RetroArch
ip_addr.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_IP_ADDR_H__
33 #define __LWIP_IP_ADDR_H__
34 
35 #include "lwip/arch.h"
36 
37 #ifdef PACK_STRUCT_USE_INCLUDES
38 # include "arch/bpstruct.h"
39 #endif
41 struct ip_addr {
45 #ifdef PACK_STRUCT_USE_INCLUDES
46 # include "arch/epstruct.h"
47 #endif
48 
49 #ifdef PACK_STRUCT_USE_INCLUDES
50 # include "arch/bpstruct.h"
51 #endif
53 struct ip_addr2 {
54  PACK_STRUCT_FIELD(u16_t addrw[2]);
57 #ifdef PACK_STRUCT_USE_INCLUDES
58 # include "arch/epstruct.h"
59 #endif
60 
61 /* For compatibility with BSD code */
62 #ifndef HAVE_IN_ADDR
63 #define HAVE_IN_ADDR
64 struct in_addr {
66 };
67 #endif
68 
69 struct netif;
70 
71 extern const struct ip_addr ip_addr_any;
72 extern const struct ip_addr ip_addr_broadcast;
73 
77 #define IP_ADDR_ANY ((struct ip_addr *)&ip_addr_any)
78 #define IP_ADDR_BROADCAST ((struct ip_addr *)&ip_addr_broadcast)
79 
80 #define INADDR_NONE ((u32_t) 0xffffffff) /* 255.255.255.255 */
81 #define INADDR_LOOPBACK ((u32_t) 0x7f000001) /* 127.0.0.1 */
82 
83 /* Definitions of the bits in an Internet address integer.
84 
85  On subnets, host and network parts are found according to
86  the subnet mask, not these masks. */
87 
88 #define IN_CLASSA(a) ((((u32_t)(a)) & 0x80000000) == 0)
89 #define IN_CLASSA_NET 0xff000000
90 #define IN_CLASSA_NSHIFT 24
91 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET)
92 #define IN_CLASSA_MAX 128
93 
94 #define IN_CLASSB(a) ((((u32_t)(a)) & 0xc0000000) == 0x80000000)
95 #define IN_CLASSB_NET 0xffff0000
96 #define IN_CLASSB_NSHIFT 16
97 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET)
98 #define IN_CLASSB_MAX 65536
99 
100 #define IN_CLASSC(a) ((((u32_t)(a)) & 0xe0000000) == 0xc0000000)
101 #define IN_CLASSC_NET 0xffffff00
102 #define IN_CLASSC_NSHIFT 8
103 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET)
104 
105 #define IN_CLASSD(a) (((u32_t)(a) & 0xf0000000) == 0xe0000000)
106 #define IN_CLASSD_NET 0xf0000000 /* These ones aren't really */
107 #define IN_CLASSD_NSHIFT 28 /* net and host fields, but */
108 #define IN_CLASSD_HOST 0x0fffffff /* routing needn't know. */
109 #define IN_MULTICAST(a) IN_CLASSD(a)
110 
111 #define IN_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
112 #define IN_BADCLASS(a) (((u32_t)(a) & 0xf0000000) == 0xf0000000)
113 
114 #define IN_LOOPBACKNET 127 /* official! */
115 
116 
117 #define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = htonl(((u32_t)(a & 0xff) << 24) | ((u32_t)(b & 0xff) << 16) | \
118  ((u32_t)(c & 0xff) << 8) | (u32_t)(d & 0xff))
119 
120 #define ip_addr_set(dest, src) (dest)->addr = \
121  ((src) == NULL? 0:\
122  (src)->addr)
123 
131 #define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
132  (mask)->addr) == \
133  ((addr2)->addr & \
134  (mask)->addr))
135 #define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
136 
137 #define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == 0)
138 
139 u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *);
140 
141 #define ip_addr_ismulticast(addr1) (((addr1)->addr & ntohl(0xf0000000)) == ntohl(0xe0000000))
142 
143 
144 #define ip_addr_debug_print(debug, ipaddr) LWIP_DEBUGF(debug, ("%"U16_F".%"U16_F".%"U16_F".%"U16_F, \
145  ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff:0, \
146  ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff:0, \
147  ipaddr?(u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff:0, \
148  ipaddr?(u16_t)ntohl((ipaddr)->addr) & 0xff:0U))
149 
150 /* cast to unsigned int, as it is used as argument to printf functions
151  * which expect integer arguments. CSi: use cc.h formatters (conversion chars)! */
152 #define ip4_addr1(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 24) & 0xff)
153 #define ip4_addr2(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 16) & 0xff)
154 #define ip4_addr3(ipaddr) ((u16_t)(ntohl((ipaddr)->addr) >> 8) & 0xff)
155 #define ip4_addr4(ipaddr) ((u16_t)(ntohl((ipaddr)->addr)) & 0xff)
156 #endif /* __LWIP_IP_ADDR_H__ */
157 
158 
159 
160 
161 
162 
u32 u32_t
Definition: cc.h:47
Definition: ip_addr.h:41
u8_t ip_addr_isbroadcast(struct ip_addr *, struct netif *)
Definition: ip_addr.c:49
const struct ip_addr ip_addr_any
Definition: ip_addr.c:38
PACK_STRUCT_BEGIN struct ip_addr PACK_STRUCT_STRUCT
PACK_STRUCT_FIELD(u32_t addr)
Definition: ip_addr.h:64
PACK_STRUCT_FIELD(u16_t addrw[2])
u32_t s_addr
Definition: ip_addr.h:65
#define PACK_STRUCT_END
Definition: arch.h:50
Definition: ip_addr.h:53
#define PACK_STRUCT_BEGIN
Definition: arch.h:46
u16 u16_t
Definition: cc.h:45
Definition: netif.h:72
const struct ip_addr ip_addr_broadcast
Definition: ip_addr.c:39
GLenum const GLvoid * addr
Definition: glext.h:10528
u8 u8_t
Definition: cc.h:43