fb11e647
 vrobic
reseau statique a...
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (C) 2016 Cenk Gündoğan <mail@cgundogan.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup net_gnrc_rpl_p2p Reactive Discovery of P2P Routes in LLNs
* @ingroup net_gnrc_rpl
* @brief Implementation of P2P-RPL
* @see <a href="https://tools.ietf.org/html/rfc6997">
* RFC 6997
* </a>
* @{
*
* @file
* @brief Definititions for P2P-RPL
*
* @author Cenk Gündoğan <mail@cgundogan.de>
*/
#ifndef GNRC_RPL_P2P_H_
#define GNRC_RPL_P2P_H_
#include "net/ipv6/addr.h"
#include "net/gnrc.h"
#include "net/gnrc/rpl/structs.h"
#include "net/gnrc/rpl/p2p_structs.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief P2P-RPL Mode of Operation
*/
#define GNRC_RPL_P2P_MOP (0x04)
/**
* @brief Default lifetime of the P2P-RPL DODAG, encoded
* @see <a href="https://tools.ietf.org/html/rfc6997#section-7">
* RFC 6997, section 7, P2P Route Discovery Option (P2P-RDO)
* </a>
*/
#define GNRC_RPL_P2P_LIFETIME (0x02)
/**
* @brief Number of elided prefix octets from the target field and address vector
* @see <a href="https://tools.ietf.org/html/rfc6997#section-7">
* RFC 6997, section 7, P2P Route Discovery Option (P2P-RDO)
* </a>
*/
#define GNRC_RPL_P2P_COMPR (0)
/**
* @brief Maximum rank in the DODAG during the route discovery
* @see <a href="https://tools.ietf.org/html/rfc6997#section-7">
* RFC 6997, section 7, P2P Route Discovery Option (P2P-RDO)
* </a>
*/
#define GNRC_RPL_P2P_MAX_RANK (0)
/**
* @name Trickle parameters
* @see <a href="https://tools.ietf.org/html/rfc6997#section-6.1">
* RFC 6997, section 6.1, Setting a P2P Mode DIO
* </a>
* @{
*/
#define GNRC_RPL_P2P_DEFAULT_DIO_INTERVAL_MIN (6)
#define GNRC_RPL_P2P_DEFAULT_DIO_REDUNDANCY_CONSTANT (1)
/** @} */
/**
* @name Default parent and route entry lifetime
* default lifetime will be multiplied by the lifetime unit to obtain the resulting lifetime
* @{
*/
#define GNRC_RPL_P2P_DEFAULT_LIFETIME (0xFF)
#define GNRC_RPL_P2P_LIFETIME_UNIT (0xFFFF)
/** @} */
/**
* @brief P2P-RPL RDO DIO option type
* @see <a href="https://tools.ietf.org/html/rfc6997#section-7">
* RFC 6997, section 7, P2P Route Discovery Option (P2P-RDO)
* </a>
*/
#define GNRC_RPL_P2P_OPT_RDO (0x0A)
/**
* @brief DRO ICMPv6 code
* @see <a href="https://tools.ietf.org/html/rfc6997#section-8">
* RFC 6997, section 8, The P2P Discovery Reply Object (P2P-DRO)
* </a>
*/
#define GNRC_RPL_P2P_ICMPV6_CODE_DRO (0x04)
/**
* @brief DRO-ACK ICMPv6 code
* @see <a href="https://tools.ietf.org/html/rfc6997#section-10">
* RFC 6997, section 10, The P2P Discovery Reply Object Acknowledgement (P2P-DRO-ACK)
* </a>
*/
#define GNRC_RPL_P2P_ICMPV6_CODE_DRO_ACK (0x05)
/**
* @brief Time in seconds to wait before sending a DRO
*/
#define GNRC_RPL_P2P_DRO_DELAY (4)
/**
* @brief Message type for handling DRO sending
*/
#define GNRC_RPL_P2P_MSG_TYPE_DRO_HANDLE (0x09A0)
/**
* @brief Lookup table used to decode/encode the lifetime values
*/
extern const uint8_t gnrc_rpl_p2p_lifetime_lookup[4];
/**
* @brief Initialization of a P2P-RPL Instance as root node.
*
* @param[in] instance_id Id of the instance
* @param[in] dodag_id Id of the DODAG
* @param[in] target Target of the P2P-RPL routes discovery
* @param[in] gen_inst_id Flag indicating whether to generate a local isntance id.
* If true, @p instance_id will be ignored
*
* @return Pointer to the new Instance, on success.
* @return NULL, otherwise.
*/
gnrc_rpl_instance_t *gnrc_rpl_p2p_root_init(uint8_t instance_id, ipv6_addr_t *dodag_id,
ipv6_addr_t *target, bool gen_inst_id);
/**
* @brief Build an RDO
*
* @param[in,out] pkt The RDO will be added to the @p pkt
* @param[in] p2p_ext Pointer to the P2P-RPL DODAG extension
*/
gnrc_pktsnip_t *gnrc_rpl_p2p_rdo_build(gnrc_pktsnip_t *pkt, gnrc_rpl_p2p_ext_t *p2p_ext);
/**
* @brief Parse an RDO
*
* @param[in] rdo The RDO to parse from.
* @param[in] p2p_ext Pointer to the P2P-RPL DODAG extension
*/
void gnrc_rpl_p2p_rdo_parse(gnrc_rpl_p2p_opt_rdo_t *rdo, gnrc_rpl_p2p_ext_t *p2p_ext);
/**
* @brief Send a DRO control message
*
* @param[in] pkt The ICMPv6 packet to send. Can be NULL.
* @param[in] p2p_ext Pointer to the P2P-RPL DODAG extension
*/
void gnrc_rpl_p2p_send_DRO(gnrc_pktsnip_t *pkt, gnrc_rpl_p2p_ext_t *p2p_ext);
/**
* @brief Receive and parse a DRO control message
*
* @param[in] pkt The ICMPv6 packet to parse.
* @param[in] src The source address of the IPv6 packet.
*/
void gnrc_rpl_p2p_recv_DRO(gnrc_pktsnip_t *pkt, ipv6_addr_t *src);
/**
* @brief Updates the lifetime of the P2P Dodag and the delay of the DRO
*/
void gnrc_rpl_p2p_update(void);
#ifdef __cplusplus
}
#endif
#endif /* GNRC_RPL_P2P_H_ */
/** @} */
|