1 #ifndef _RPL_H_ 2 3 /* 4 * NOTE: the contents of this file are an interpretation of RFC6550. 5 * no copyright is asserted on this file, as it transcribes 6 * a public specification. 7 * 8 */ 9 10 /* 11 * DIO: Updated to RFC6550, as published in 2012: section 6. (page 30) 12 */ 13 14 #define ND_RPL_MESSAGE 155 /* 0x9B */ 15 16 enum ND_RPL_CODE { 17 ND_RPL_DAG_IS=0x00, 18 ND_RPL_DAG_IO=0x01, 19 ND_RPL_DAO =0x02, 20 ND_RPL_DAO_ACK=0x03, 21 ND_RPL_SEC_DAG_IS = 0x80, 22 ND_RPL_SEC_DAG_IO = 0x81, 23 ND_RPL_SEC_DAG = 0x82, 24 ND_RPL_SEC_DAG_ACK= 0x83, 25 ND_RPL_SEC_CONSIST= 0x84, 26 }; 27 28 enum ND_RPL_DIO_FLAGS { 29 ND_RPL_DIO_GROUNDED = 0x80, 30 ND_RPL_DIO_DATRIG = 0x40, 31 ND_RPL_DIO_DASUPPORT= 0x20, 32 ND_RPL_DIO_RES4 = 0x10, 33 ND_RPL_DIO_RES3 = 0x08, 34 ND_RPL_DIO_PRF_MASK = 0x07, /* 3-bit preference */ 35 }; 36 37 #define DAGID_LEN 16 38 39 /* section 6 of draft-ietf-roll-rpl-19 */ 40 struct nd_rpl_security { 41 uint8_t rpl_sec_t_reserved; /* bit 7 is T-bit */ 42 uint8_t rpl_sec_algo; 43 uint16_t rpl_sec_kim_lvl_flags; /* bit 15/14, KIM */ 44 /* bit 10-8, LVL, bit 7-0 flags */ 45 uint32_t rpl_sec_counter; 46 #if 0 47 uint8_t rpl_sec_ki[0]; /* depends upon kim */ 48 #endif 49 }; 50 51 /* section 6.2.1, DODAG Information Solication (DIS_IS) */ 52 struct nd_rpl_dis_is { 53 uint8_t rpl_dis_flags; 54 uint8_t rpl_dis_reserved; 55 #if 0 56 uint8_t rpl_dis_options[0]; 57 #endif 58 }; 59 60 /* section 6.3.1, DODAG Information Object (DIO) */ 61 struct nd_rpl_dio { 62 uint8_t rpl_instanceid; 63 uint8_t rpl_version; 64 uint16_t rpl_dagrank; 65 uint8_t rpl_mopprf; /* bit 7=G, 5-3=MOP, 2-0=PRF */ 66 uint8_t rpl_dtsn; /* Dest. Advertisement Trigger Sequence Number */ 67 uint8_t rpl_flags; /* no flags defined yet */ 68 uint8_t rpl_resv1; 69 uint8_t rpl_dagid[DAGID_LEN]; 70 }; 71 #define RPL_DIO_GROUND_FLAG 0x80 72 #define RPL_DIO_MOP_SHIFT 3 73 #define RPL_DIO_MOP_MASK (7 << RPL_DIO_MOP_SHIFT) 74 #define RPL_DIO_PRF_SHIFT 0 75 #define RPL_DIO_PRF_MASK (7 << RPL_DIO_PRF_SHIFT) 76 #define RPL_DIO_GROUNDED(X) ((X)&RPL_DIO_GROUND_FLAG) 77 #define RPL_DIO_MOP(X) (enum RPL_DIO_MOP)(((X)&RPL_DIO_MOP_MASK) >> RPL_DIO_MOP_SHIFT) 78 #define RPL_DIO_PRF(X) (((X)&RPL_DIO_PRF_MASK) >> RPL_DIO_PRF_SHIFT) 79 80 enum RPL_DIO_MOP { 81 RPL_DIO_NONSTORING= 0x0, 82 RPL_DIO_STORING = 0x1, 83 RPL_DIO_NONSTORING_MULTICAST = 0x2, 84 RPL_DIO_STORING_MULTICAST = 0x3, 85 }; 86 87 enum RPL_SUBOPT { 88 RPL_OPT_PAD0 = 0, 89 RPL_OPT_PADN = 1, 90 RPL_DIO_METRICS = 2, 91 RPL_DIO_ROUTINGINFO = 3, 92 RPL_DIO_CONFIG = 4, 93 RPL_DAO_RPLTARGET = 5, 94 RPL_DAO_TRANSITINFO = 6, 95 RPL_DIO_DESTPREFIX = 8, 96 RPL_DAO_RPLTARGET_DESC=9, 97 }; 98 99 struct rpl_dio_genoption { 100 uint8_t rpl_dio_type; 101 uint8_t rpl_dio_len; /* suboption length, not including type/len */ 102 }; 103 #define RPL_DIO_GENOPTION_LEN 2 104 105 #define RPL_DIO_LIFETIME_INFINITE 0xffffffff 106 #define RPL_DIO_LIFETIME_DISCONNECT 0 107 108 struct rpl_dio_destprefix { 109 uint8_t rpl_dio_type; 110 uint8_t rpl_dio_len; 111 uint8_t rpl_dio_prefixlen; /* in bits */ 112 uint8_t rpl_dio_prf; /* flags, including Route Preference */ 113 uint32_t rpl_dio_prefixlifetime; /* in seconds */ 114 #if 0 115 uint8_t rpl_dio_prefix[0]; /* variable number of bytes */ 116 #endif 117 }; 118 119 /* section 6.4.1, DODAG Information Object (DIO) */ 120 struct nd_rpl_dao { 121 uint8_t rpl_instanceid; 122 uint8_t rpl_flags; /* bit 7=K, 6=D */ 123 uint8_t rpl_resv; 124 uint8_t rpl_daoseq; 125 uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */ 126 }; 127 #define ND_RPL_DAO_MIN_LEN 4 /* length without DAGID */ 128 129 /* indicates if this DAO is to be acK'ed */ 130 #define RPL_DAO_K_SHIFT 7 131 #define RPL_DAO_K_MASK (1 << RPL_DAO_K_SHIFT) 132 #define RPL_DAO_K(X) (((X)&RPL_DAO_K_MASK) >> RPL_DAO_K_SHIFT) 133 134 /* indicates if the DAGID is present */ 135 #define RPL_DAO_D_SHIFT 6 136 #define RPL_DAO_D_MASK (1 << RPL_DAO_D_SHIFT) 137 #define RPL_DAO_D(X) (((X)&RPL_DAO_D_MASK) >> RPL_DAO_D_SHIFT) 138 139 struct rpl_dao_target { 140 uint8_t rpl_dao_type; 141 uint8_t rpl_dao_len; 142 uint8_t rpl_dao_flags; /* unused */ 143 uint8_t rpl_dao_prefixlen; /* in bits */ 144 #if 0 145 uint8_t rpl_dao_prefix[0]; /* variable number of bytes */ 146 #endif 147 }; 148 149 /* section 6.5.1, Destination Advertisement Object Acknowledgement (DAO-ACK) */ 150 struct nd_rpl_daoack { 151 uint8_t rpl_instanceid; 152 uint8_t rpl_flags; /* bit 7=D */ 153 uint8_t rpl_daoseq; 154 uint8_t rpl_status; 155 uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */ 156 }; 157 #define ND_RPL_DAOACK_MIN_LEN 4 /* length without DAGID */ 158 /* indicates if the DAGID is present */ 159 #define RPL_DAOACK_D_SHIFT 7 160 #define RPL_DAOACK_D_MASK (1 << RPL_DAOACK_D_SHIFT) 161 #define RPL_DAOACK_D(X) (((X)&RPL_DAOACK_D_MASK) >> RPL_DAOACK_D_SHIFT) 162 163 164 165 #define _RPL_H_ 166 #endif /* _RPL_H_ */ 167 168 /* 169 * Local Variables: 170 * c-basic-offset:4 171 * c-style: whitesmith 172 * End: 173 */ 174 175