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1 #ifndef	_BOOTP_H
2 #define	_BOOTP_H
3 
4 #ifdef	ALTERNATE_DHCP_PORTS_1067_1068
5 #undef	NON_STANDARD_BOOTP_SERVER
6 #define	NON_STANDARD_BOOTP_SERVER	1067
7 #undef	NON_STANDARD_BOOTP_CLIENT
8 #define	NON_STANDARD_BOOTP_CLIENT	1068
9 #endif
10 
11 #ifdef	NON_STANDARD_BOOTP_SERVER
12 #define	BOOTP_SERVER	NON_STANDARD_BOOTP_SERVER
13 #else
14 #define BOOTP_SERVER	67
15 #endif
16 #ifdef	NON_STANDARD_BOOTP_CLIENT
17 #define	BOOTP_CLIENT	NON_STANDARD_BOOTP_CLIENT
18 #else
19 #define BOOTP_CLIENT	68
20 #endif
21 #define PROXYDHCP_SERVER	4011 /* For PXE */
22 
23 #define BOOTP_REQUEST	1
24 #define BOOTP_REPLY	2
25 
26 #define TAG_LEN(p)		(*((p)+1))
27 #define RFC1533_COOKIE		99, 130, 83, 99
28 #define RFC1533_PAD		0
29 #define RFC1533_NETMASK		1
30 #define RFC1533_TIMEOFFSET	2
31 #define RFC1533_GATEWAY		3
32 #define RFC1533_TIMESERVER	4
33 #define RFC1533_IEN116NS	5
34 #define RFC1533_DNS		6
35 #define RFC1533_LOGSERVER	7
36 #define RFC1533_COOKIESERVER	8
37 #define RFC1533_LPRSERVER	9
38 #define RFC1533_IMPRESSSERVER	10
39 #define RFC1533_RESOURCESERVER	11
40 #define RFC1533_HOSTNAME	12
41 #define RFC1533_BOOTFILESIZE	13
42 #define RFC1533_MERITDUMPFILE	14
43 #define RFC1533_DOMAINNAME	15
44 #define RFC1533_SWAPSERVER	16
45 #define RFC1533_ROOTPATH	17
46 #define RFC1533_EXTENSIONPATH	18
47 #define RFC1533_IPFORWARDING	19
48 #define RFC1533_IPSOURCEROUTING	20
49 #define RFC1533_IPPOLICYFILTER	21
50 #define RFC1533_IPMAXREASSEMBLY	22
51 #define RFC1533_IPTTL		23
52 #define RFC1533_IPMTU		24
53 #define RFC1533_IPMTUPLATEAU	25
54 #define RFC1533_INTMTU		26
55 #define RFC1533_INTLOCALSUBNETS	27
56 #define RFC1533_INTBROADCAST	28
57 #define RFC1533_INTICMPDISCOVER	29
58 #define RFC1533_INTICMPRESPOND	30
59 #define RFC1533_INTROUTEDISCOVER 31
60 #define RFC1533_INTROUTESOLICIT	32
61 #define RFC1533_INTSTATICROUTES	33
62 #define RFC1533_LLTRAILERENCAP	34
63 #define RFC1533_LLARPCACHETMO	35
64 #define RFC1533_LLETHERNETENCAP	36
65 #define RFC1533_TCPTTL		37
66 #define RFC1533_TCPKEEPALIVETMO	38
67 #define RFC1533_TCPKEEPALIVEGB	39
68 #define RFC1533_NISDOMAIN	40
69 #define RFC1533_NISSERVER	41
70 #define RFC1533_NTPSERVER	42
71 #define RFC1533_VENDOR		43
72 #define RFC1533_NBNS		44
73 #define RFC1533_NBDD		45
74 #define RFC1533_NBNT		46
75 #define RFC1533_NBSCOPE		47
76 #define RFC1533_XFS		48
77 #define RFC1533_XDM		49
78 #ifndef	NO_DHCP_SUPPORT
79 #define RFC2132_REQ_ADDR	50
80 #define RFC2132_MSG_TYPE	53
81 #define RFC2132_SRV_ID		54
82 #define RFC2132_PARAM_LIST	55
83 #define RFC2132_MAX_SIZE	57
84 #define	RFC2132_VENDOR_CLASS_ID	60
85 #define RFC2132_CLIENT_ID       61
86 #define	RFC2132_TFTP_SERVER_NAME 66
87 #define	RFC2132_BOOTFILE_NAME	67
88 #define RFC3004_USER_CLASS      77
89 
90 #ifdef PXE_DHCP_STRICT
91 /*
92  * The following options are acknowledged in RFC3679 because they are
93  * widely used by PXE implementations, but have never been properly
94  * allocated. Despite other PXE options being correctly packed in a
95  * vendor encapsulated field, these are exposed. Sigh.  Note that the
96  * client UUID (option 97) is also noted in the PXE spec as using
97  * option 61.
98  */
99 #define RFC3679_PXE_CLIENT_ARCH 93
100 #define RFC3679_PXE_CLIENT_NDI  94
101 #define RFC3679_PXE_CLIENT_UUID 97
102 
103 /* The lengths are fixed. */
104 #define RFC3679_PXE_CLIENT_ARCH_LENGTH 2
105 #define RFC3679_PXE_CLIENT_NDI_LENGTH 3
106 #define RFC3679_PXE_CLIENT_UUID_LENGTH 17
107 
108 /*
109  * Values of RFC3679_PXE_CLIENT_ARCH can apparently be one of the
110  * following, according to the PXE spec. The spec only actually
111  * described the 2nd octet, not the first. Duh... assume 0.
112  */
113 #define RFC3679_PXE_CLIENT_ARCH_IAX86PC   0,0
114 #define RFC3679_PXE_CLIENT_ARCH_NECPC98   0,1
115 #define RFC3679_PXE_CLIENT_ARCH_IA64PC    0,2
116 #define RFC3679_PXE_CLIENT_ARCH_DECALPHA  0,3
117 #define RFC3679_PXE_CLIENT_ARCH_ARCX86    0,4
118 #define RFC3679_PXE_CLIENT_ARCH_INTELLEAN 0,5
119 
120 /*
121  * Only one valid value of NDI type (must be 1) and UNDI version (must
122  * be 2.1)
123  */
124 #define RFC3679_PXE_CLIENT_NDI_21 1,2,1
125 
126 /*
127  * UUID - type must be 1 and then 16 octets of UID, as with the client ID.
128  * The value is a default for testing only
129  */
130 #define RFC3679_PXE_CLIENT_UUID_TYPE 0
131 #warning "UUID is a default for testing ONLY!"
132 #define RFC3679_PXE_CLIENT_UUID_DEFAULT \
133         RFC3679_PXE_CLIENT_UUID_TYPE, \
134         0xDE,0xAD,0xBE,0xEF, \
135         0xDE,0xAD,0xBE,0xEF, \
136         0xDE,0xAD,0xBE,0xEF, \
137         0xDE,0xAD,0xBE,0xEF
138 /*
139  * The Vendor Class ID. Note that the Arch and UNDI version numbers
140  * are fixed and must be same as the ARCH and NDI above.
141  */
142 #define RFC2132_VENDOR_CLASS_ID_PXE_LENGTH 32
143 #define RFC2132_VENDOR_CLASS_ID_PXE \
144         'P','X','E','C','l','i','e','n','t',':', \
145         'A','r','c','h',':','0','0','0','0','0',':', \
146         'U','N','D','I',':','0','0','2','0','0','1'
147 
148 /*
149  * The following vendor options are required in the PXE spec to pull
150  * options for the *next* image. The PXE spec doesn't help us with
151  * this (like explaining why).
152  */
153 #define RFC1533_VENDOR_PXE_OPT128 128
154 #define RFC1533_VENDOR_PXE_OPT129 129
155 #define RFC1533_VENDOR_PXE_OPT130 130
156 #define RFC1533_VENDOR_PXE_OPT131 131
157 #define RFC1533_VENDOR_PXE_OPT132 132
158 #define RFC1533_VENDOR_PXE_OPT133 133
159 #define RFC1533_VENDOR_PXE_OPT134 134
160 #define RFC1533_VENDOR_PXE_OPT135 135
161 
162 #endif /* PXE_DHCP_STRICT */
163 
164 #define DHCPDISCOVER		1
165 #define DHCPOFFER		2
166 #define DHCPREQUEST		3
167 #define DHCPACK			5
168 #endif	/* NO_DHCP_SUPPORT */
169 
170 #define RFC1533_VENDOR_MAJOR	0
171 #define RFC1533_VENDOR_MINOR	0
172 
173 #define RFC1533_VENDOR_MAGIC	128
174 #define RFC1533_VENDOR_ADDPARM	129
175 #define	RFC1533_VENDOR_ETHDEV	130
176 /* We should really apply for an official Etherboot encap option */
177 #define RFC1533_VENDOR_ETHERBOOT_ENCAP 150
178 /* I'll leave it to FREEBSD to decide if they want to renumber */
179 #ifdef	IMAGE_FREEBSD
180 #define RFC1533_VENDOR_HOWTO    132
181 #define RFC1533_VENDOR_KERNEL_ENV    133
182 #endif
183 #define RFC1533_VENDOR_NIC_DEV_ID 175
184 #define RFC1533_VENDOR_ARCH     177
185 
186 #define RFC1533_END		255
187 
188 #define BOOTP_VENDOR_LEN	64
189 #ifndef	NO_DHCP_SUPPORT
190 #define DHCP_OPT_LEN		312
191 #endif	/* NO_DHCP_SUPPORT */
192 
193 /* Format of a bootp packet */
194 struct bootp_t {
195 	uint8_t  bp_op;
196 	uint8_t  bp_htype;
197 	uint8_t  bp_hlen;
198 	uint8_t  bp_hops;
199 	uint32_t bp_xid;
200 	uint16_t bp_secs;
201 	uint16_t unused;
202 	in_addr bp_ciaddr;
203 	in_addr bp_yiaddr;
204 	in_addr bp_siaddr;
205 	in_addr bp_giaddr;
206 	uint8_t  bp_hwaddr[16];
207 	uint8_t  bp_sname[64];
208 	char     bp_file[128];
209 #ifdef	NO_DHCP_SUPPORT
210 	uint8_t  bp_vend[BOOTP_VENDOR_LEN];
211 #else
212 	uint8_t  bp_vend[DHCP_OPT_LEN];
213 #endif	/* NO_DHCP_SUPPORT */
214 };
215 
216 /* Format of a bootp IP packet */
217 struct bootpip_t
218 {
219 	struct iphdr ip;
220 	struct udphdr udp;
221 	struct bootp_t bp;
222 };
223 
224 /* Format of bootp packet with extensions */
225 struct bootpd_t {
226 	struct bootp_t bootp_reply;
227 	uint8_t bootp_extension[MAX_BOOTP_EXTLEN];
228 };
229 
230 #endif	/* _BOOTP_H */
231