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1 | /* |
2 | * $Id: libnet-macros.h,v 1.21 2005/11/29 21:57:40 carlosc Exp $ | |
3 | * | |
4 | * libnet-macros.h - Network routine library macro header file | |
5 | * | |
6 | * Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com> | |
7 | * All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * | |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
24 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
25 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
26 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
27 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
28 | * SUCH DAMAGE. | |
29 | * | |
30 | */ | |
31 | ||
32 | #ifndef __LIBNET_MACROS_H | |
33 | #define __LIBNET_MACROS_H | |
34 | /** | |
35 | * @file libnet-macros.h | |
36 | * @brief libnet macros and symbloc constants | |
37 | */ | |
38 | ||
39 | /* for systems without snprintf */ | |
40 | #if defined(NO_SNPRINTF) | |
41 | #define snprintf(buf, len, args...) sprintf(buf, ##args) | |
42 | #endif | |
43 | ||
44 | ||
45 | /** | |
46 | * Used for libnet's name resolution functions, specifies that no DNS lookups | |
47 | * should be performed and the IP address should be kept in numeric form. | |
48 | */ | |
49 | #define LIBNET_DONT_RESOLVE 0 | |
50 | ||
51 | /** | |
52 | * Used for libnet's name resolution functions, specifies that a DNS lookup | |
53 | * can be performed if needed to resolve the IP address to a canonical form. | |
54 | */ | |
55 | #define LIBNET_RESOLVE 1 | |
56 | ||
57 | /** | |
58 | * Used several places, to specify "on" or "one" | |
59 | */ | |
60 | #define LIBNET_ON 0 | |
61 | ||
62 | /** | |
63 | * Used several places, to specify "on" or "one" | |
64 | */ | |
65 | #define LIBNET_OFF 1 | |
66 | ||
67 | /** | |
68 | * IPv6 error code | |
69 | */ | |
70 | #ifndef IN6ADDR_ERROR_INIT | |
71 | #define IN6ADDR_ERROR_INIT { { { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ | |
72 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ | |
73 | 0xff, 0xff } } } | |
74 | #endif | |
75 | ||
76 | /** | |
77 | * Used for libnet_get_prand() to specify function disposition | |
78 | */ | |
79 | #define LIBNET_PR2 0 | |
80 | #define LIBNET_PR8 1 | |
81 | #define LIBNET_PR16 2 | |
82 | #define LIBNET_PRu16 3 | |
83 | #define LIBNET_PR32 4 | |
84 | #define LIBNET_PRu32 5 | |
85 | #define LIBNET_PRAND_MAX 0xffffffff | |
86 | ||
87 | /** | |
88 | * The biggest an IP packet can be -- 65,535 bytes. | |
89 | */ | |
90 | #define LIBNET_MAX_PACKET 0xffff | |
91 | #ifndef IP_MAXPACKET | |
92 | #define IP_MAXPACKET 0xffff | |
93 | #endif | |
94 | ||
95 | ||
96 | /* ethernet addresses are 6 octets long */ | |
97 | #ifndef ETHER_ADDR_LEN | |
98 | #define ETHER_ADDR_LEN 0x6 | |
99 | #endif | |
100 | ||
101 | /* FDDI addresses are 6 octets long */ | |
102 | #ifndef FDDI_ADDR_LEN | |
103 | #define FDDI_ADDR_LEN 0x6 | |
104 | #endif | |
105 | ||
106 | /* token ring addresses are 6 octets long */ | |
107 | #ifndef TOKEN_RING_ADDR_LEN | |
108 | #define TOKEN_RING_ADDR_LEN 0x6 | |
109 | #endif | |
110 | ||
111 | /* LLC Organization Code is 3 bytes long */ | |
112 | #define LIBNET_ORG_CODE_SIZE 0x3 | |
113 | ||
114 | /** | |
115 | * The libnet error buffer is 256 bytes long. | |
116 | */ | |
117 | #define LIBNET_ERRBUF_SIZE 0x100 | |
118 | ||
119 | /** | |
120 | * IP and TCP options can be up to 40 bytes long. | |
121 | */ | |
122 | #define LIBNET_MAXOPTION_SIZE 0x28 | |
123 | ||
124 | /* some BSD variants have this endianess problem */ | |
125 | #if (LIBNET_BSD_BYTE_SWAP) | |
126 | #define FIX(n) ntohs(n) | |
127 | #define UNFIX(n) htons(n) | |
128 | #else | |
129 | #define FIX(n) (n) | |
130 | #define UNFIX(n) (n) | |
131 | #endif | |
132 | ||
133 | /* used internally for checksum stuff */ | |
134 | #define LIBNET_CKSUM_CARRY(x) \ | |
135 | (x = (x >> 16) + (x & 0xffff), (~(x + (x >> 16)) & 0xffff)) | |
136 | ||
137 | /* used interally for OSPF stuff */ | |
138 | #define LIBNET_OSPF_AUTHCPY(x, y) \ | |
139 | memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y)) | |
140 | #define LIBNET_OSPF_CKSUMBUF(x, y) \ | |
141 | memcpy((u_int8_t *)x, (u_int8_t *)y, sizeof(y)) | |
142 | ||
143 | /* used internally for NTP leap indicator, version, and mode */ | |
144 | #define LIBNET_NTP_DO_LI_VN_MODE(li, vn, md) \ | |
145 | ((u_int8_t)((((li) << 6) & 0xc0) | (((vn) << 3) & 0x38) | ((md) & 0x7))) | |
146 | ||
147 | /* Not all systems have IFF_LOOPBACK */ | |
148 | #ifdef IFF_LOOPBACK | |
149 | #define LIBNET_ISLOOPBACK(p) ((p)->ifr_flags & IFF_LOOPBACK) | |
150 | #else | |
151 | #define LIBNET_ISLOOPBACK(p) (strcmp((p)->ifr_name, "lo0") == 0) | |
152 | #endif | |
153 | ||
154 | /* advanced mode check */ | |
155 | #define LIBNET_ISADVMODE(x) (x & 0x08) | |
156 | ||
157 | /* context queue macros and constants */ | |
158 | #define LIBNET_LABEL_SIZE 64 | |
159 | #define LIBNET_LABEL_DEFAULT "cardshark" | |
160 | #define CQ_LOCK_UNLOCKED (u_int)0x00000000 | |
161 | #define CQ_LOCK_READ (u_int)0x00000001 | |
162 | #define CQ_LOCK_WRITE (u_int)0x00000002 | |
163 | ||
164 | /** | |
165 | * Provides an interface to iterate through the context queue of libnet | |
166 | * contexts. Before calling this macro, be sure to set the queue using | |
167 | * libnet_cq_head(). | |
168 | */ | |
169 | #define for_each_context_in_cq(l) \ | |
170 | for (l = libnet_cq_head(); libnet_cq_last(); l = libnet_cq_next()) | |
171 | ||
172 | /* return 1 if write lock is set on cq */ | |
173 | #define cq_is_wlocked() (l_cqd.cq_lock & CQ_LOCK_WRITE) | |
174 | ||
175 | /* return 1 if read lock is set on cq */ | |
176 | #define cq_is_rlocked() (l_cqd.cq_lock & CQ_LOCK_READ) | |
177 | ||
178 | /* return 1 if any lock is set on cq */ | |
179 | #define cq_is_locked() (l_cqd.cq_lock & (CQ_LOCK_READ | CQ_LOCK_WRITE)) | |
180 | ||
181 | /* check if a context queue is locked */ | |
182 | #define check_cq_lock(x) (l_cqd.cq_lock & x) | |
183 | ||
184 | #endif /* __LIBNET_MACROS_H */ | |
185 | ||
186 | /* EOF */ |