diff options
Diffstat (limited to 'rpl.h')
| -rw-r--r-- | rpl.h | 174 |
1 files changed, 174 insertions, 0 deletions
@@ -0,0 +1,174 @@ +#ifndef _RPL_H_ + +/* + * NOTE: the contents of this file are an interpretation of RFC6550. + * no copyright is asserted on this file, as it transcribes + * a public specification. + * + */ + +/* + * DIO: Updated to RFC6550, as published in 2012: section 6. (page 30) + */ + +#define ND_RPL_MESSAGE 155 /* 0x9B */ + +enum ND_RPL_CODE { + ND_RPL_DAG_IS=0x00, + ND_RPL_DAG_IO=0x01, + ND_RPL_DAO =0x02, + ND_RPL_DAO_ACK=0x03, + ND_RPL_SEC_DAG_IS = 0x80, + ND_RPL_SEC_DAG_IO = 0x81, + ND_RPL_SEC_DAG = 0x82, + ND_RPL_SEC_DAG_ACK= 0x83, + ND_RPL_SEC_CONSIST= 0x8A +}; + +enum ND_RPL_DIO_FLAGS { + ND_RPL_DIO_GROUNDED = 0x80, + ND_RPL_DIO_DATRIG = 0x40, + ND_RPL_DIO_DASUPPORT= 0x20, + ND_RPL_DIO_RES4 = 0x10, + ND_RPL_DIO_RES3 = 0x08, + ND_RPL_DIO_PRF_MASK = 0x07 /* 3-bit preference */ +}; + +#define DAGID_LEN 16 + +/* section 6 of draft-ietf-roll-rpl-19 */ +struct nd_rpl_security { + uint8_t rpl_sec_t_reserved; /* bit 7 is T-bit */ + uint8_t rpl_sec_algo; + uint16_t rpl_sec_kim_lvl_flags; /* bit 15/14, KIM */ + /* bit 10-8, LVL, bit 7-0 flags */ + uint32_t rpl_sec_counter; +#if 0 + uint8_t rpl_sec_ki[0]; /* depends upon kim */ +#endif +}; + +/* section 6.2.1, DODAG Information Solication (DIS_IS) */ +struct nd_rpl_dis_is { + uint8_t rpl_dis_flags; + uint8_t rpl_dis_reserved; +#if 0 + uint8_t rpl_dis_options[0]; +#endif +}; + +/* section 6.3.1, DODAG Information Object (DIO) */ +struct nd_rpl_dio { + uint8_t rpl_instanceid; + uint8_t rpl_version; + uint16_t rpl_dagrank; + uint8_t rpl_mopprf; /* bit 7=G, 5-3=MOP, 2-0=PRF */ + uint8_t rpl_dtsn; /* Dest. Advertisement Trigger Sequence Number */ + uint8_t rpl_flags; /* no flags defined yet */ + uint8_t rpl_resv1; + uint8_t rpl_dagid[DAGID_LEN]; +}; +#define RPL_DIO_GROUND_FLAG 0x80 +#define RPL_DIO_MOP_SHIFT 3 +#define RPL_DIO_MOP_MASK (7 << RPL_DIO_MOP_SHIFT) +#define RPL_DIO_PRF_SHIFT 0 +#define RPL_DIO_PRF_MASK (7 << RPL_DIO_PRF_SHIFT) +#define RPL_DIO_GROUNDED(X) ((X)&RPL_DIO_GROUND_FLAG) +#define RPL_DIO_MOP(X) (enum RPL_DIO_MOP)(((X)&RPL_DIO_MOP_MASK) >> RPL_DIO_MOP_SHIFT) +#define RPL_DIO_PRF(X) (((X)&RPL_DIO_PRF_MASK) >> RPL_DIO_PRF_SHIFT) + +enum RPL_DIO_MOP { + RPL_DIO_NONSTORING= 0x0, + RPL_DIO_STORING = 0x1, + RPL_DIO_NONSTORING_MULTICAST = 0x2, + RPL_DIO_STORING_MULTICAST = 0x3 +}; + +enum RPL_SUBOPT { + RPL_OPT_PAD0 = 0, + RPL_OPT_PADN = 1, + RPL_DIO_METRICS = 2, + RPL_DIO_ROUTINGINFO = 3, + RPL_DIO_CONFIG = 4, + RPL_DAO_RPLTARGET = 5, + RPL_DAO_TRANSITINFO = 6, + RPL_DIO_DESTPREFIX = 8, + RPL_DAO_RPLTARGET_DESC=9 +}; + +struct rpl_dio_genoption { + uint8_t rpl_dio_type; + uint8_t rpl_dio_len; /* suboption length, not including type/len */ +}; +#define RPL_DIO_GENOPTION_LEN 2 + +#define RPL_DIO_LIFETIME_INFINITE 0xffffffff +#define RPL_DIO_LIFETIME_DISCONNECT 0 + +struct rpl_dio_destprefix { + uint8_t rpl_dio_type; + uint8_t rpl_dio_len; + uint8_t rpl_dio_prefixlen; /* in bits */ + uint8_t rpl_dio_prf; /* flags, including Route Preference */ + uint32_t rpl_dio_prefixlifetime; /* in seconds */ +#if 0 + uint8_t rpl_dio_prefix[0]; /* variable number of bytes */ +#endif +}; + +/* section 6.4.1, DODAG Information Object (DIO) */ +struct nd_rpl_dao { + uint8_t rpl_instanceid; + uint8_t rpl_flags; /* bit 7=K, 6=D */ + uint8_t rpl_resv; + uint8_t rpl_daoseq; + uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */ +}; +#define ND_RPL_DAO_MIN_LEN 4 /* length without DAGID */ + +/* indicates if this DAO is to be acK'ed */ +#define RPL_DAO_K_SHIFT 7 +#define RPL_DAO_K_MASK (1 << RPL_DAO_K_SHIFT) +#define RPL_DAO_K(X) (((X)&RPL_DAO_K_MASK) >> RPL_DAO_K_SHIFT) + +/* indicates if the DAGID is present */ +#define RPL_DAO_D_SHIFT 6 +#define RPL_DAO_D_MASK (1 << RPL_DAO_D_SHIFT) +#define RPL_DAO_D(X) (((X)&RPL_DAO_D_MASK) >> RPL_DAO_D_SHIFT) + +struct rpl_dao_target { + uint8_t rpl_dao_type; + uint8_t rpl_dao_len; + uint8_t rpl_dao_flags; /* unused */ + uint8_t rpl_dao_prefixlen; /* in bits */ +#if 0 + uint8_t rpl_dao_prefix[0]; /* variable number of bytes */ +#endif +}; + +/* section 6.5.1, Destination Advertisement Object Acknowledgement (DAO-ACK) */ +struct nd_rpl_daoack { + uint8_t rpl_instanceid; + uint8_t rpl_flags; /* bit 7=D */ + uint8_t rpl_daoseq; + uint8_t rpl_status; + uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */ +}; +#define ND_RPL_DAOACK_MIN_LEN 4 /* length without DAGID */ +/* indicates if the DAGID is present */ +#define RPL_DAOACK_D_SHIFT 7 +#define RPL_DAOACK_D_MASK (1 << RPL_DAOACK_D_SHIFT) +#define RPL_DAOACK_D(X) (((X)&RPL_DAOACK_D_MASK) >> RPL_DAOACK_D_SHIFT) + + + +#define _RPL_H_ +#endif /* _RPL_H_ */ + +/* + * Local Variables: + * c-basic-offset:4 + * c-style: whitesmith + * End: + */ + |