1 #ifndef included_vnet_dhcp6_packet_h
2 #define included_vnet_dhcp6_packet_h
7 * Copyright (c) 2013 Cisco and/or its affiliates.
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at:
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
20 #include <vnet/ip/ip6_packet.h>
22 // #define DHCP_VRF_NAME_MAX_LEN L3VM_MAX_NAME_STR_LEN
23 // #define DHCPV6_MAX_VRF_NAME_LEN L3VM_MAX_NAME_STR_LEN
24 #define DHCP_MAX_RELAY_ADDR 16
26 #define DHCPV6_CLIENT_PORT 546
27 #define DHCPV6_SERVER_PORT 547
28 #define HOP_COUNT_LIMIT 32
29 #define DHCPV6_CISCO_ENT_NUM 9
32 * DHCPv6 message types
34 typedef enum dhcpv6_msg_type_
36 DHCPV6_MSG_SOLICIT = 1,
37 DHCPV6_MSG_ADVERTISE = 2,
38 DHCPV6_MSG_REQUEST = 3,
39 DHCPV6_MSG_CONFIRM = 4,
41 DHCPV6_MSG_REBIND = 6,
43 DHCPV6_MSG_RELEASE = 8,
44 DHCPV6_MSG_DECLINE = 9,
45 DHCPV6_MSG_RECONFIGURE = 10,
46 DHCPV6_MSG_INFORMATION_REQUEST = 11,
47 DHCPV6_MSG_RELAY_FORW = 12,
48 DHCPV6_MSG_RELAY_REPL = 13,
51 /* Name, code, min payload length */
52 #define dhcpv6_foreach_option \
53 _(CLIENTID , 1 , 4 ) \
54 _(SERVERID , 2 , 4 ) \
59 _(PREFERENCE , 7 , 1 ) \
60 _(ELAPSED_TIME , 8 , 2 ) \
61 _(RELAY_MSG , 9 , 0 ) \
63 _(UNICAST , 12 , 16) \
64 _(STATUS_CODE , 13 , 2 ) \
65 _(RAPID_COMMIT , 14 , 0 ) \
66 _(USER_CLASS , 15 , 0 ) \
67 _(VENDOR_CLASS , 16 , 4 ) \
68 _(VENDOR_OPTS , 17 , 4 ) \
69 _(INTERFACE_ID , 18 , 0 ) \
70 _(RECONF_MSG , 19 , 1 ) \
71 _(RECONF_ACCEPT , 20 , 0 ) \
72 _(DNS_SEARCH , 24 , 0 ) \
74 _(IAPREFIX , 26 , 25) \
75 _(REMOTEID , 37 , 4 ) \
77 _(CLIENT_LINK_LAYER_ADDRESS, 79 , 2 )
80 * DHCPv6 options types
84 #define _(a,b,c) DHCPV6_OPTION_##a = b,
95 DHCPV6_STATUS_SUCCESS = 0,
96 DHCPV6_STATUS_UNSPEC_FAIL = 1,
97 DHCPV6_STATUS_NOADDRS_AVAIL = 2,
98 DHCPV6_STATUS_NO_BINDING = 3,
99 DHCPV6_STATUS_NOT_ONLINK = 4,
100 DHCPV6_STATUS_USE_MULTICAST = 5,
101 DHCPV6_STATUS_NOPREFIX_AVAIL = 6,
109 DHCPV6_DUID_LLT = 1, /* DUID Based on Link-layer Address Plus Time */
110 DHCPV6_DUID_EN = 2, /* DUID Based on Enterprise Number */
111 DHCPV6_DUID_LL = 3, /* DUID Based on Link-layer Address */
114 //Structure for DHCPv6 payload from client
115 typedef struct dhcpv6_hdr_
117 u8 msg_type; //DHCP msg type
118 u8 xid[3]; //Transaction id
123 typedef CLIB_PACKED (struct dhcpv6_relay_ctx_ {
124 dhcpv6_header_t *pkt;
126 u32 dhcpv6_len; //DHCPv6 payload load
132 }) dhcpv6_relay_ctx_t;
135 //Structure for DHCPv6 RELAY-FORWARD and DHCPv6 RELAY-REPLY pkts
137 typedef CLIB_PACKED (struct dhcpv6_relay_hdr_ {
140 ip6_address_t link_addr;
141 ip6_address_t peer_addr;
143 }) dhcpv6_relay_hdr_t;
146 typedef enum dhcp_stats_action_type_
148 DHCP_STATS_ACTION_FORWARDED = 1,
149 DHCP_STATS_ACTION_RECEIVED,
150 DHCP_STATS_ACTION_DROPPED
151 } dhcp_stats_action_type_t;
152 //Generic counters for a packet
153 typedef struct dhcp_stats_counters_
155 u64 rx_pkts; //counter for received pkts
156 u64 tx_pkts; //counter for forwarded pkts
157 u64 drops; //counter for dropped pkts
158 } dhcp_stats_counters_t;
161 typedef enum dhcpv6_stats_drop_reason_
163 DHCPV6_RELAY_PKT_DROP_RELAYDISABLE = 1,
164 DHCPV6_RELAY_PKT_DROP_MAX_HOPS,
165 DHCPV6_RELAY_PKT_DROP_VALIDATION_FAIL,
166 DHCPV6_RELAY_PKT_DROP_UNKNOWN_OP_INTF,
167 DHCPV6_RELAY_PKT_DROP_BAD_CONTEXT,
168 DHCPV6_RELAY_PKT_DROP_OPT_INSERT_FAIL,
169 DHCPV6_RELAY_PKT_DROP_REPLY_FROM_CLIENT,
170 } dhcpv6_stats_drop_reason_t;
172 #define dhcpv6_optlen(opt) clib_net_to_host_u16((opt)->length)
175 typedef CLIB_PACKED (struct {
183 typedef CLIB_PACKED (struct {
186 }) dhcpv6_status_code_t;
190 typedef CLIB_PACKED (struct {
197 typedef CLIB_PACKED (struct {
205 typedef CLIB_PACKED (struct {
213 typedef CLIB_PACKED (struct {
216 u8 data[6]; // data[0]:data[5]: MAC address
217 }) dhcpv6_client_mac_t;
220 typedef CLIB_PACKED (struct
222 dhcpv6_option_t opt; u32 iaid; u32 t1;
225 }) dhcpv6_ia_header_t;
227 typedef CLIB_PACKED (struct
229 dhcpv6_option_t opt; u32 preferred; u32 valid; u8 prefix;
231 }) dhcpv6_ia_opt_pd_t;
233 typedef CLIB_PACKED (struct
235 dhcpv6_option_t opt; ip6_address_t addr; u32 preferred;
237 }) dhcpv6_ia_opt_addr_t;
239 typedef CLIB_PACKED (struct
245 typedef CLIB_PACKED (struct
247 dhcpv6_option_t opt; u16 elapsed_10ms;
250 typedef CLIB_PACKED (struct
252 dhcpv6_option_t opt; u16 duid_type;
256 typedef CLIB_PACKED (struct
258 dhcpv6_option_t opt; u16 status_code;
263 #endif /* included_vnet_dhcp6_packet_h */
266 * fd.io coding-style-patch-verification: ON
269 * eval: (c-set-style "gnu")