1 | |
2 | #ifndef _NETINET_DHCP_OPTIONS_H |
3 | #define _NETINET_DHCP_OPTIONS_H |
4 | #include <sys/appleapiopts.h> |
5 | /* |
6 | * Copyright (c) 1999-2016 Apple Inc. All rights reserved. |
7 | * |
8 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
9 | * |
10 | * This file contains Original Code and/or Modifications of Original Code |
11 | * as defined in and that are subject to the Apple Public Source License |
12 | * Version 2.0 (the 'License'). You may not use this file except in |
13 | * compliance with the License. The rights granted to you under the License |
14 | * may not be used to create, or enable the creation or redistribution of, |
15 | * unlawful or unlicensed copies of an Apple operating system, or to |
16 | * circumvent, violate, or enable the circumvention or violation of, any |
17 | * terms of an Apple operating system software license agreement. |
18 | * |
19 | * Please obtain a copy of the License at |
20 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
21 | * |
22 | * The Original Code and all software distributed under the License are |
23 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
24 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
25 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
26 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
27 | * Please see the License for the specific language governing rights and |
28 | * limitations under the License. |
29 | * |
30 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
31 | */ |
32 | |
33 | /* |
34 | * dhcp_options.h |
35 | * - routines to parse and access dhcp options |
36 | */ |
37 | |
38 | /* |
39 | * Modification History |
40 | * |
41 | * March 15, 2002 Dieter Siegmund (dieter@apple) |
42 | * - imported from bootp project |
43 | */ |
44 | #include <mach/boolean.h> |
45 | #include <netinet/dhcp.h> |
46 | |
47 | |
48 | /* overloaded option values */ |
49 | #define DHCP_OVERLOAD_FILE 1 |
50 | #define DHCP_OVERLOAD_SNAME 2 |
51 | #define DHCP_OVERLOAD_BOTH 3 |
52 | |
53 | /* |
54 | * DHCP_OPTION_SIZE_MAX |
55 | * - the largest size that an option can be (limited to an 8-bit quantity) |
56 | */ |
57 | #define DHCP_OPTION_SIZE_MAX 255 |
58 | |
59 | #define DHCP_TAG_OFFSET 0 |
60 | #define DHCP_LEN_OFFSET 1 |
61 | #define DHCP_OPTION_OFFSET 2 |
62 | |
63 | |
64 | |
65 | #define RFC_OPTIONS_MAGIC { 99, 130, 83, 99 } |
66 | #define RFC_MAGIC_SIZE 4 /* bytes */ |
67 | |
68 | enum { |
69 | /* rfc 1497 vendor extensions: 0..18, 255 */ |
70 | dhcptag_pad_e = 0, |
71 | dhcptag_end_e = 255, |
72 | dhcptag_subnet_mask_e = 1, |
73 | dhcptag_time_offset_e = 2, |
74 | dhcptag_router_e = 3, |
75 | dhcptag_time_server_e = 4, |
76 | dhcptag_name_server_e = 5, |
77 | dhcptag_domain_name_server_e = 6, |
78 | dhcptag_log_server_e = 7, |
79 | dhcptag_cookie_server_e = 8, |
80 | dhcptag_lpr_server_e = 9, |
81 | dhcptag_impress_server_e = 10, |
82 | dhcptag_resource_location_server_e = 11, |
83 | dhcptag_host_name_e = 12, |
84 | dhcptag_boot_file_size_e = 13, |
85 | dhcptag_merit_dump_file_e = 14, |
86 | dhcptag_domain_name_e = 15, |
87 | dhcptag_swap_server_e = 16, |
88 | dhcptag_root_path_e = 17, |
89 | dhcptag_extensions_path_e = 18, |
90 | |
91 | /* ip layer parameters per host: 19..25 */ |
92 | dhcptag_ip_forwarding_e = 19, |
93 | dhcptag_non_local_source_routing_e = 20, |
94 | dhcptag_policy_filter_e = 21, |
95 | dhcptag_max_dgram_reassembly_size_e = 22, |
96 | dhcptag_default_ip_time_to_live_e = 23, |
97 | dhcptag_path_mtu_aging_timeout_e = 24, |
98 | dhcptag_path_mtu_plateau_table_e = 25, |
99 | |
100 | /* ip layer parameters per interface: 26..33 */ |
101 | dhcptag_interface_mtu_e = 26, |
102 | dhcptag_all_subnets_local_e = 27, |
103 | dhcptag_broadcast_address_e = 28, |
104 | dhcptag_perform_mask_discovery_e = 29, |
105 | dhcptag_mask_supplier_e = 30, |
106 | dhcptag_perform_router_discovery_e = 31, |
107 | dhcptag_router_solicitation_address_e = 32, |
108 | dhcptag_static_route_e = 33, |
109 | dhcptag_trailer_encapsulation_e = 34, |
110 | dhcptag_arp_cache_timeout_e = 35, |
111 | dhcptag_ethernet_encapsulation_e = 36, |
112 | |
113 | /* tcp parameters: 37..39 */ |
114 | dhcptag_default_ttl_e = 37, |
115 | dhcptag_keepalive_interval_e = 38, |
116 | dhcptag_keepalive_garbage_e = 39, |
117 | |
118 | /* application & service parameters: 40..49, 64, 65, 68..76, 78, 79, 95 */ |
119 | dhcptag_nis_domain_e = 40, |
120 | dhcptag_nis_servers_e = 41, |
121 | dhcptag_network_time_protocol_servers_e = 42, |
122 | dhcptag_vendor_specific_e = 43, |
123 | dhcptag_nb_over_tcpip_name_server_e = 44, |
124 | dhcptag_nb_over_tcpip_dgram_dist_server_e = 45, |
125 | dhcptag_nb_over_tcpip_node_type_e = 46, |
126 | dhcptag_nb_over_tcpip_scope_e = 47, |
127 | dhcptag_x_windows_font_server_e = 48, |
128 | dhcptag_x_windows_display_manager_e = 49, |
129 | dhcptag_nis_plus_domain_e = 64, |
130 | dhcptag_nis_plus_servers_e = 65, |
131 | dhcptag_mobile_ip_home_agent_e = 68, |
132 | dhcptag_smtp_server_e = 69, |
133 | dhcptag_pop3_server_e = 70, |
134 | dhcptag_nntp_server_e = 71, |
135 | dhcptag_default_www_server_e = 72, |
136 | dhcptag_default_finger_server_e = 73, |
137 | dhcptag_default_irc_server_e = 74, |
138 | dhcptag_streettalk_server_e = 75, |
139 | dhcptag_stda_server_e = 76, |
140 | dhcptag_slp_directory_agent_e = 78, |
141 | dhcptag_slp_service_scope_e = 79, |
142 | dhcptag_ldap_url_e = 95, |
143 | |
144 | /* dhcp-specific extensions: 50..61, 66, 67 */ |
145 | dhcptag_requested_ip_address_e = 50, |
146 | dhcptag_lease_time_e = 51, |
147 | dhcptag_option_overload_e = 52, |
148 | dhcptag_dhcp_message_type_e = 53, |
149 | dhcptag_server_identifier_e = 54, |
150 | dhcptag_parameter_request_list_e = 55, |
151 | dhcptag_message_e = 56, |
152 | dhcptag_max_dhcp_message_size_e = 57, |
153 | dhcptag_renewal_t1_time_value_e = 58, |
154 | dhcptag_rebinding_t2_time_value_e = 59, |
155 | dhcptag_vendor_class_identifier_e = 60, |
156 | dhcptag_client_identifier_e = 61, |
157 | dhcptag_tftp_server_name_e = 66, |
158 | dhcptag_bootfile_name_e = 67, |
159 | |
160 | /* netinfo parent tags: 112, 113 */ |
161 | dhcptag_netinfo_server_address_e = 112, |
162 | dhcptag_netinfo_server_tag_e = 113, |
163 | |
164 | /* ad-hoc network disable option */ |
165 | dhcptag_auto_configure_e = 116, |
166 | }; |
167 | typedef uint8_t dhcptag_t; |
168 | |
169 | /* |
170 | * Module: dhcpol (dhcp options list) |
171 | * |
172 | * Purpose: |
173 | * Routines to parse and retrieve dhcp options. |
174 | */ |
175 | |
176 | typedef struct { |
177 | const void * * array; /* malloc'd array of pointers */ |
178 | int size; /* number of elements in array */ |
179 | int count; /* number of occupied elements */ |
180 | } ptrlist_t; |
181 | |
182 | typedef ptrlist_t dhcpol_t; |
183 | |
184 | #ifdef BSD_KERNEL_PRIVATE |
185 | |
186 | void dhcpol_init(dhcpol_t * list); |
187 | void dhcpol_free(dhcpol_t * list); |
188 | int dhcpol_count(dhcpol_t * list); |
189 | boolean_t dhcpol_add(dhcpol_t * list, const void * element); |
190 | const void * dhcpol_element(dhcpol_t * list, int i); |
191 | boolean_t dhcpol_concat(dhcpol_t * list, dhcpol_t * ); |
192 | boolean_t dhcpol_parse_buffer(dhcpol_t * list, |
193 | const void * buffer, |
194 | int length); |
195 | const void * dhcpol_find(dhcpol_t * list, int tag, int * len_p, |
196 | int * start); |
197 | boolean_t dhcpol_parse_packet(dhcpol_t * options, |
198 | const struct dhcp * pkt, int len); |
199 | |
200 | #endif /* BSD_KERNEL_PRIVATE */ |
201 | #endif /* _NETINET_DHCP_OPTIONS_H */ |
202 | |