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175 lines
4.9 KiB
C
175 lines
4.9 KiB
C
#ifndef _RPL_H_
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/*
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* NOTE: the contents of this file are an interpretation of RFC6550.
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* no copyright is asserted on this file, as it transcribes
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* a public specification.
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*
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*/
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/*
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* DIO: Updated to RFC6550, as published in 2012: section 6. (page 30)
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*/
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#define ND_RPL_MESSAGE 155 /* 0x9B */
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enum ND_RPL_CODE {
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ND_RPL_DAG_IS=0x00,
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ND_RPL_DAG_IO=0x01,
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ND_RPL_DAO =0x02,
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ND_RPL_DAO_ACK=0x03,
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ND_RPL_SEC_DAG_IS = 0x80,
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ND_RPL_SEC_DAG_IO = 0x81,
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ND_RPL_SEC_DAG = 0x82,
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ND_RPL_SEC_DAG_ACK= 0x83,
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ND_RPL_SEC_CONSIST= 0x84,
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};
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enum ND_RPL_DIO_FLAGS {
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ND_RPL_DIO_GROUNDED = 0x80,
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ND_RPL_DIO_DATRIG = 0x40,
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ND_RPL_DIO_DASUPPORT= 0x20,
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ND_RPL_DIO_RES4 = 0x10,
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ND_RPL_DIO_RES3 = 0x08,
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ND_RPL_DIO_PRF_MASK = 0x07, /* 3-bit preference */
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};
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#define DAGID_LEN 16
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/* section 6 of draft-ietf-roll-rpl-19 */
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struct nd_rpl_security {
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uint8_t rpl_sec_t_reserved; /* bit 7 is T-bit */
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uint8_t rpl_sec_algo;
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uint16_t rpl_sec_kim_lvl_flags; /* bit 15/14, KIM */
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/* bit 10-8, LVL, bit 7-0 flags */
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uint32_t rpl_sec_counter;
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#if 0
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uint8_t rpl_sec_ki[0]; /* depends upon kim */
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#endif
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};
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/* section 6.2.1, DODAG Information Solication (DIS_IS) */
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struct nd_rpl_dis_is {
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uint8_t rpl_dis_flags;
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uint8_t rpl_dis_reserved;
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#if 0
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uint8_t rpl_dis_options[0];
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#endif
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};
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/* section 6.3.1, DODAG Information Object (DIO) */
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struct nd_rpl_dio {
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uint8_t rpl_instanceid;
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uint8_t rpl_version;
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uint16_t rpl_dagrank;
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uint8_t rpl_mopprf; /* bit 7=G, 5-3=MOP, 2-0=PRF */
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uint8_t rpl_dtsn; /* Dest. Advertisement Trigger Sequence Number */
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uint8_t rpl_flags; /* no flags defined yet */
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uint8_t rpl_resv1;
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uint8_t rpl_dagid[DAGID_LEN];
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};
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#define RPL_DIO_GROUND_FLAG 0x80
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#define RPL_DIO_MOP_SHIFT 3
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#define RPL_DIO_MOP_MASK (7 << RPL_DIO_MOP_SHIFT)
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#define RPL_DIO_PRF_SHIFT 0
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#define RPL_DIO_PRF_MASK (7 << RPL_DIO_PRF_SHIFT)
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#define RPL_DIO_GROUNDED(X) ((X)&RPL_DIO_GROUND_FLAG)
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#define RPL_DIO_MOP(X) (enum RPL_DIO_MOP)(((X)&RPL_DIO_MOP_MASK) >> RPL_DIO_MOP_SHIFT)
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#define RPL_DIO_PRF(X) (((X)&RPL_DIO_PRF_MASK) >> RPL_DIO_PRF_SHIFT)
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enum RPL_DIO_MOP {
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RPL_DIO_NONSTORING= 0x0,
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RPL_DIO_STORING = 0x1,
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RPL_DIO_NONSTORING_MULTICAST = 0x2,
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RPL_DIO_STORING_MULTICAST = 0x3,
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};
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enum RPL_SUBOPT {
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RPL_OPT_PAD0 = 0,
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RPL_OPT_PADN = 1,
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RPL_DIO_METRICS = 2,
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RPL_DIO_ROUTINGINFO = 3,
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RPL_DIO_CONFIG = 4,
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RPL_DAO_RPLTARGET = 5,
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RPL_DAO_TRANSITINFO = 6,
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RPL_DIO_DESTPREFIX = 8,
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RPL_DAO_RPLTARGET_DESC=9,
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};
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struct rpl_dio_genoption {
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uint8_t rpl_dio_type;
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uint8_t rpl_dio_len; /* suboption length, not including type/len */
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};
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#define RPL_DIO_GENOPTION_LEN 2
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#define RPL_DIO_LIFETIME_INFINITE 0xffffffff
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#define RPL_DIO_LIFETIME_DISCONNECT 0
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struct rpl_dio_destprefix {
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uint8_t rpl_dio_type;
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uint8_t rpl_dio_len;
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uint8_t rpl_dio_prefixlen; /* in bits */
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uint8_t rpl_dio_prf; /* flags, including Route Preference */
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uint32_t rpl_dio_prefixlifetime; /* in seconds */
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#if 0
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uint8_t rpl_dio_prefix[0]; /* variable number of bytes */
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#endif
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};
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/* section 6.4.1, DODAG Information Object (DIO) */
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struct nd_rpl_dao {
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uint8_t rpl_instanceid;
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uint8_t rpl_flags; /* bit 7=K, 6=D */
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uint8_t rpl_resv;
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uint8_t rpl_daoseq;
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uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */
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};
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#define ND_RPL_DAO_MIN_LEN 4 /* length without DAGID */
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/* indicates if this DAO is to be acK'ed */
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#define RPL_DAO_K_SHIFT 7
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#define RPL_DAO_K_MASK (1 << RPL_DAO_K_SHIFT)
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#define RPL_DAO_K(X) (((X)&RPL_DAO_K_MASK) >> RPL_DAO_K_SHIFT)
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/* indicates if the DAGID is present */
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#define RPL_DAO_D_SHIFT 6
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#define RPL_DAO_D_MASK (1 << RPL_DAO_D_SHIFT)
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#define RPL_DAO_D(X) (((X)&RPL_DAO_D_MASK) >> RPL_DAO_D_SHIFT)
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struct rpl_dao_target {
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uint8_t rpl_dao_type;
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uint8_t rpl_dao_len;
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uint8_t rpl_dao_flags; /* unused */
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uint8_t rpl_dao_prefixlen; /* in bits */
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#if 0
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uint8_t rpl_dao_prefix[0]; /* variable number of bytes */
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#endif
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};
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/* section 6.5.1, Destination Advertisement Object Acknowledgement (DAO-ACK) */
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struct nd_rpl_daoack {
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uint8_t rpl_instanceid;
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uint8_t rpl_flags; /* bit 7=D */
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uint8_t rpl_daoseq;
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uint8_t rpl_status;
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uint8_t rpl_dagid[DAGID_LEN]; /* present when D set. */
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};
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#define ND_RPL_DAOACK_MIN_LEN 4 /* length without DAGID */
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/* indicates if the DAGID is present */
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#define RPL_DAOACK_D_SHIFT 7
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#define RPL_DAOACK_D_MASK (1 << RPL_DAOACK_D_SHIFT)
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#define RPL_DAOACK_D(X) (((X)&RPL_DAOACK_D_MASK) >> RPL_DAOACK_D_SHIFT)
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#define _RPL_H_
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#endif /* _RPL_H_ */
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/*
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* Local Variables:
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* c-basic-offset:4
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* c-style: whitesmith
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* End:
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*/
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