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rpl.h
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rpl.h
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#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.
* It comes from https://github.com/mcr/unstrung/blob/master/include/rpl.h
*/
#define PACKED __attribute__((packed))
/*
* 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, /* DIS */
ND_RPL_DAG_IO=0x01, /* DIO */
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= 0x84,
};
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 {
u_int8_t rpl_sec_t_reserved; /* bit 7 is T-bit */
u_int8_t rpl_sec_algo;
u_int16_t rpl_sec_kim_lvl_flags; /* bit 15/14, KIM */
/* bit 10-8, LVL, bit 7-0 flags */
u_int32_t rpl_sec_counter;
u_int8_t rpl_sec_ki[0]; /* depends upon kim */
} PACKED;
struct nd_rpl_opt {
u_int8_t type;
u_int8_t len;
} PACKED;
/* section 6.2.1, DODAG Information Solication (DIS) */
struct nd_rpl_dis {
u_int8_t rpl_dis_flags;
u_int8_t rpl_dis_reserved;
//u_int8_t rpl_dis_options[0];
} PACKED;
/* section 6.7.9, DIS - Solicited Information */
struct rpl_dis_solicitedinfo {
u_int8_t rpl_dis_type;
u_int8_t rpl_dis_len;
u_int8_t rpl_dis_instanceid;
u_int8_t rpl_dis_flags; /* flags, V,I,D */
u_int8_t rpl_dis_dagid[DAGID_LEN];
u_int8_t rpl_dis_versionnum;
} PACKED;
#define RPL_DIS_SI_V (1 << 7)
#define RPL_DIS_SI_I (1 << 6)
#define RPL_DIS_SI_D (1 << 5)
#define RPL_DIS_SI_FLAGS ((1 << 5)-1)
/* section 6.3.1, DODAG Information Object (DIO) */
struct nd_rpl_dio {
u_int8_t rpl_instanceid;
u_int8_t rpl_version;
u_int16_t rpl_dagrank;
u_int8_t rpl_mopprf; /* bit 7=G, 5-3=MOP, 2-0=PRF */
u_int8_t rpl_dtsn; /* Dest. Advertisement Trigger Sequence Number */
u_int8_t rpl_flags; /* no flags defined yet */
u_int8_t rpl_resv1;
struct in6_addr rpl_dagid;
//unsigned char u_data[0];
} PACKED;
#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_NO_DOWNWARD_ROUTES_MAINT = 0x0,
RPL_DIO_NONSTORING = 0x1,
RPL_DIO_STORING_NO_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_DIS_SOLICITEDINFO=7,
RPL_DIO_DESTPREFIX = 8,
RPL_DAO_RPLTARGET_DESC=9,
};
struct rpl_dio_genoption {
u_int8_t rpl_dio_type;
u_int8_t rpl_dio_len; /* suboption length, not including type/len */
u_int8_t rpl_dio_data[0];
} PACKED;
#define RPL_DIO_LIFETIME_INFINITE 0xffffffff
#define RPL_DIO_LIFETIME_DISCONNECT 0
#define RPL_DIO_PREFIX_AUTONOMOUS_ADDR_CONFIG_FLAG 0x40
#define RPL_DIO_PREFIX_AUTONOMOUS_ADDR_CONFIG_SHIFT 6
#define RPL_DIO_PREFIX_AUTONOMOUS_ADDR_CONFIG_MASK (1 << RPL_DIO_PREFIX_AUTONOMOUS_ADDR_CONFIG_SHIFT)
struct rpl_dio_destprefix {
u_int8_t rpl_dio_type;
u_int8_t rpl_dio_len;
u_int8_t rpl_dio_prefixlen; /* in bits */
u_int8_t rpl_dio_prf; /* flags, including Route Preference */
u_int32_t rpl_dio_route_lifetime; /* in seconds */
struct in6_addr rpl_dio_prefix;
// u_int32_t rpl_dio_preferred_lifetime; /* in seconds */
// u_int32_t reserved2; /* RFC6550 section 6.7.10 says to always*/
// u_int8_t rpl_dio_prefix[16]; /* send 16 bytes,even if fewer are used*/
} PACKED;
/* section 6.4.1, DODAG Information Object (DIO) */
struct nd_rpl_dao {
u_int8_t rpl_instanceid;
u_int8_t rpl_flags; /* bit 7=K, 6=D */
u_int8_t rpl_resv;
u_int8_t rpl_daoseq; /* a sequence number, to be echoed in ACK */
struct in6_addr rpl_dagid; /* [DAGID_LEN] present when D set. */
} PACKED;
/* 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)
/* TODO make rpl option with type and len */
struct rpl_dao_target {
u_int8_t rpl_dao_type;
u_int8_t rpl_dao_len;
u_int8_t rpl_dao_flags; /* unused */
u_int8_t rpl_dao_prefixlen; /* in bits */
struct in6_addr rpl_dao_prefix; /* variables number of bytes */
} PACKED;
/* section 6.5.1, Destination Advertisement Object Acknowledgement (DAO-ACK) */
struct nd_rpl_daoack {
u_int8_t rpl_instanceid;
u_int8_t rpl_flags; /* bit 7=D */
u_int8_t rpl_daoseq;
u_int8_t rpl_status;
struct in6_addr rpl_dagid; /* [DAGID_LEN] present when D set. */
} PACKED;
/* 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:
*/