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1 /*
2  * dhcpcd - DHCP client daemon
3  * Copyright (c) 2006-2012 Roy Marples <roy@marples.name>
4  * All rights reserved
5 
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifndef IF_OPTIONS_H
29 #define IF_OPTIONS_H
30 
31 #include <sys/socket.h>
32 #include <net/if.h>
33 #include <netinet/in.h>
34 
35 #include <getopt.h>
36 #include <limits.h>
37 
38 /* Don't set any optional arguments here so we retain POSIX
39  * compatibility with getopt */
40 #define IF_OPTS "abc:de:f:gh:i:kl:m:no:pqr:s:t:u:v:wxy:z:ABC:DEF:GHI:JKLO:Q:S:TUVW:X:Z:"
41 
42 #define DEFAULT_TIMEOUT		30
43 #define DEFAULT_REBOOT		5
44 
45 #define HOSTNAME_MAX_LEN	250	/* 255 - 3 (FQDN) - 2 (DNS enc) */
46 #define VENDORCLASSID_MAX_LEN	255
47 #define CLIENTID_MAX_LEN	48
48 #define USERCLASS_MAX_LEN	255
49 #define VENDOR_MAX_LEN		255
50 
51 #define DHCPCD_ARP			(1ULL << 0)
52 #define DHCPCD_RELEASE			(1ULL << 1)
53 #define DHCPCD_DOMAIN			(1ULL << 2)
54 #define DHCPCD_GATEWAY			(1ULL << 3)
55 #define DHCPCD_STATIC			(1ULL << 4)
56 #define DHCPCD_DEBUG			(1ULL << 5)
57 #define DHCPCD_LASTLEASE		(1ULL << 7)
58 #define DHCPCD_INFORM			(1ULL << 8)
59 #define DHCPCD_REQUEST			(1ULL << 9)
60 #define DHCPCD_IPV4LL			(1ULL << 10)
61 #define DHCPCD_DUID			(1ULL << 11)
62 #define DHCPCD_PERSISTENT		(1ULL << 12)
63 #define DHCPCD_DAEMONISE		(1ULL << 14)
64 #define DHCPCD_DAEMONISED		(1ULL << 15)
65 #define DHCPCD_TEST			(1ULL << 16)
66 #define DHCPCD_MASTER			(1ULL << 17)
67 #define DHCPCD_HOSTNAME			(1ULL << 18)
68 #define DHCPCD_CLIENTID			(1ULL << 19)
69 #define DHCPCD_LINK			(1ULL << 20)
70 #define DHCPCD_QUIET			(1ULL << 21)
71 #define DHCPCD_BACKGROUND		(1ULL << 22)
72 #define DHCPCD_VENDORRAW		(1ULL << 23)
73 #define DHCPCD_TIMEOUT_IPV4LL		(1ULL << 24)
74 #define DHCPCD_WAITIP			(1ULL << 25)
75 #define DHCPCD_WAITUP			(1ULL << 26)
76 #define DHCPCD_CSR_WARNED		(1ULL << 27)
77 #define DHCPCD_XID_HWADDR		(1ULL << 28)
78 #define DHCPCD_BROADCAST		(1ULL << 29)
79 #define DHCPCD_DUMPLEASE		(1ULL << 30)
80 #define DHCPCD_IPV6RS			(1ULL << 31)
81 #define DHCPCD_IPV6RA_REQRDNSS		(1ULL << 32)
82 
83 extern const struct option cf_options[];
84 
85 struct if_options {
86 	int metric;
87 	uint8_t requestmask[256 / 8];
88 	uint8_t requiremask[256 / 8];
89 	uint8_t nomask[256 / 8];
90 	uint8_t dstmask[256 / 8];
91 	uint32_t leasetime;
92 	time_t timeout;
93 	time_t reboot;
94 	unsigned long long options;
95 
96 	struct in_addr req_addr;
97 	struct in_addr req_mask;
98 	struct rt *routes;
99 	char **config;
100 
101 	char **environ;
102 	char script[PATH_MAX];
103 
104 	char hostname[HOSTNAME_MAX_LEN + 1]; /* We don't store the length */
105 	int fqdn;
106 	uint8_t vendorclassid[VENDORCLASSID_MAX_LEN + 2];
107 	char clientid[CLIENTID_MAX_LEN + 2];
108 	uint8_t userclass[USERCLASS_MAX_LEN + 2];
109 	uint8_t vendor[VENDOR_MAX_LEN + 2];
110 
111 	size_t blacklist_len;
112 	in_addr_t *blacklist;
113 	size_t whitelist_len;
114 	in_addr_t *whitelist;
115 	size_t arping_len;
116 	in_addr_t *arping;
117 	char *fallback;
118 };
119 
120 struct if_options *read_config(const char *,
121     const char *, const char *, const char *);
122 int add_options(struct if_options *, int, char **);
123 void free_options(struct if_options *);
124 
125 #endif
126