sixlowpan/nd.h
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1 /*
2  * Copyright (C) 2015 Martine Lenders <mlenders@inf.fu-berlin.de>
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser
5  * General Public License v2.1. See the file LICENSE in the top level
6  * directory for more details.
7  */
8 
22 #ifndef NET_SIXLOWPAN_ND_H
23 #define NET_SIXLOWPAN_ND_H
24 
25 #include <stdint.h>
26 
27 #include "byteorder.h"
28 #include "net/eui64.h"
29 #include "net/ipv6/addr.h"
30 
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 
40 #define SIXLOWPAN_ND_OPT_6CTX_LEN_MIN (2U)
41 #define SIXLOWPAN_ND_OPT_6CTX_LEN_MAX (3U)
42 #define SIXLOWPAN_ND_OPT_AR_LEN (2U)
43 #define SIXLOWPAN_ND_OPT_ABR_LEN (3U)
44 
57 #define SIXLOWPAN_ND_OPT_ABR_LTIME_DEFAULT (10000U)
58 
65 #define SIXLOWPAN_ND_STATUS_SUCCESS (0)
66 #define SIXLOWPAN_ND_STATUS_DUP (1)
67 #define SIXLOWPAN_ND_STATUS_NC_FULL (2)
76 #define SIXLOWPAN_ND_OPT_6CTX_FLAGS_MASK (0x1f)
77 #define SIXLOWPAN_ND_OPT_6CTX_FLAGS_C (0x10)
78 #define SIXLOWPAN_ND_OPT_6CTX_FLAGS_CID_MASK (0x0f)
88 #define SIXLOWPAN_ND_MIN_CTX_CHANGE_SEC_DELAY (300U)
96 #define SIXLOWPAN_ND_MAX_RA_NUMOF (3U)
97 #define SIXLOWPAN_ND_MIN_MS_DELAY_BETWEEN_RAS (10000U)
98 #define SIXLOWPAN_ND_MAX_RA_MS_DELAY (2000U)
99 #define SIXLOWPAN_ND_TENTATIVE_NCE_SEC_LTIME (20U)
107 #define SIXLOWPAN_ND_MULTIHOP_HL (64U)
120 #define SIXLOWPAN_ND_REG_TRANSMIT_NUMOF (3U)
121 
124 #define SIXLOWPAN_ND_RS_MSEC_INTERVAL (10000U)
125 #define SIXLOWPAN_ND_MAX_RS_NUMOF (3U)
129 #define SIXLOWPAN_ND_MAX_RS_SEC_INTERVAL (60U)
130 
138 typedef struct __attribute__((packed)) {
139  uint8_t type;
140  uint8_t code;
142  uint8_t status;
143  uint8_t resv;
148 
155 typedef struct __attribute__((packed)) {
156  uint8_t type;
157  uint8_t len;
158  uint8_t status;
160  uint8_t resv[3];
164 
171 typedef struct __attribute__((packed)) {
172  uint8_t type;
173  uint8_t len;
174  uint8_t ctx_len;
175  uint8_t resv_c_cid;
179 
186 typedef struct __attribute__((packed)) {
187  uint8_t type;
188  uint8_t len;
194 
204 static inline bool sixlowpan_nd_opt_6ctx_is_comp(const sixlowpan_nd_opt_6ctx_t *ctx_opt)
205 {
206  return (bool)(ctx_opt->resv_c_cid & SIXLOWPAN_ND_OPT_6CTX_FLAGS_C);
207 }
208 
216 static inline uint8_t sixlowpan_nd_opt_6ctx_get_cid(const sixlowpan_nd_opt_6ctx_t *ctx_opt)
217 {
219 }
220 
227 static inline void sixlowpan_nd_opt_6ctx_set_cid(sixlowpan_nd_opt_6ctx_t *ctx_opt, uint8_t cid)
228 {
231 }
232 
241 static inline uint32_t sixlowpan_nd_opt_abr_get_version(const sixlowpan_nd_opt_abr_t *abr_opt)
242 {
243  return ((uint32_t)byteorder_ntohs(abr_opt->vlow)) |
244  (((uint32_t)byteorder_ntohs(abr_opt->vhigh)) << 16);
245 }
246 
254  uint32_t version)
255 {
256  abr_opt->vlow = byteorder_htons((uint16_t)(version & 0xffff));
257  abr_opt->vhigh = byteorder_htons((uint16_t)(version >> 16));
258 }
259 
260 #ifdef __cplusplus
261 }
262 #endif
263 
264 #endif /* NET_SIXLOWPAN_ND_H */
265 
EUI-64 data type definition.
Address registration option format.
Definition: sixlowpan/nd.h:155
uint8_t len
length in units of 8 octets
Definition: sixlowpan/nd.h:173
Definitions for IPv6 addresses.
network_uint16_t resv
reserved field
Definition: sixlowpan/nd.h:176
uint8_t status
indicates registration status in DAC; must be 0 in DAR.
Definition: sixlowpan/nd.h:142
A 16 bit integer in big endian aka network byte order.
Definition: byteorder.h:76
network_uint16_t ltime
valid lifetime
Definition: sixlowpan/nd.h:191
eui64_t eui64
EUI-64.
Definition: sixlowpan/nd.h:145
static void sixlowpan_nd_opt_abr_set_version(sixlowpan_nd_opt_abr_t *abr_opt, uint32_t version)
Sets the version of an Authoritative Border Router option.
Definition: sixlowpan/nd.h:253
static bool sixlowpan_nd_opt_6ctx_is_comp(const sixlowpan_nd_opt_6ctx_t *ctx_opt)
Checks if a 6LoWPAN context in an 6LoWPAN context option is valid for compression.
Definition: sixlowpan/nd.h:204
#define SIXLOWPAN_ND_OPT_6CTX_FLAGS_C
valid for compression
Definition: sixlowpan/nd.h:77
Authoritative border router option format.
Definition: sixlowpan/nd.h:186
static uint16_t byteorder_ntohs(network_uint16_t v)
Convert from network byte order to host byte order, 16 bit.
Definition: byteorder.h:373
uint8_t len
length in units of 8 octets
Definition: sixlowpan/nd.h:157
static uint32_t sixlowpan_nd_opt_abr_get_version(const sixlowpan_nd_opt_abr_t *abr_opt)
Gets the version in correct order from an Authoritative Border Router option.
Definition: sixlowpan/nd.h:241
network_uint16_t ltime
registration lifetime
Definition: sixlowpan/nd.h:144
uint8_t type
message type
Definition: sixlowpan/nd.h:139
uint8_t type
option type
Definition: sixlowpan/nd.h:172
static uint8_t sixlowpan_nd_opt_6ctx_get_cid(const sixlowpan_nd_opt_6ctx_t *ctx_opt)
Gets a CID (context identifier) from a 6LoWPAN context option.
Definition: sixlowpan/nd.h:216
uint8_t ctx_len
context length
Definition: sixlowpan/nd.h:174
Duplicate address request and confirmation message format.
Definition: sixlowpan/nd.h:138
eui64_t eui64
EUI-64.
Definition: sixlowpan/nd.h:162
ipv6_addr_t addr
registered address
Definition: sixlowpan/nd.h:146
uint8_t resv
reserved field
Definition: sixlowpan/nd.h:143
network_uint16_t vhigh
version high
Definition: sixlowpan/nd.h:190
ipv6_addr_t braddr
6LoWPAN border router address
Definition: sixlowpan/nd.h:192
network_uint16_t ltime
registration lifetime
Definition: sixlowpan/nd.h:161
static void sixlowpan_nd_opt_6ctx_set_cid(sixlowpan_nd_opt_6ctx_t *ctx_opt, uint8_t cid)
Sets a CID (context identifier) for a 6LoWPAN context option.
Definition: sixlowpan/nd.h:227
Functions to work with different byte orders.
network_uint16_t ltime
valid lifetime
Definition: sixlowpan/nd.h:177
network_uint16_t vlow
version low
Definition: sixlowpan/nd.h:189
uint8_t type
option type
Definition: sixlowpan/nd.h:156
6LoWPAN context option format
Definition: sixlowpan/nd.h:171
uint8_t status
indicates registration status in NA response; must be 0 in NS messages
Definition: sixlowpan/nd.h:158
network_uint16_t csum
checksum
Definition: sixlowpan/nd.h:141
Data type to represent an IPv6 address.
Definition: ipv6/addr.h:74
Data type to represent an EUI-64.
Definition: eui64.h:37
uint8_t type
option type
Definition: sixlowpan/nd.h:187
uint8_t code
message code
Definition: sixlowpan/nd.h:140
uint8_t len
length in units of 8 octets
Definition: sixlowpan/nd.h:188
uint8_t resv_c_cid
3-bit reserved, 1-bit c flag, 4 bit CID
Definition: sixlowpan/nd.h:175
#define SIXLOWPAN_ND_OPT_6CTX_FLAGS_CID_MASK
mask for CID
Definition: sixlowpan/nd.h:78
static network_uint16_t byteorder_htons(uint16_t v)
Convert from host byte order to network byte order, 16 bit.
Definition: byteorder.h:355