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#define | TRICKLE_TIME(m, d) ((clock_time_t)((m) << (d))) |
| Convert a timer to a sane clock_time_t value after d doublings m is a value of Imin, d is a number of doublings Careful of overflows.
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#define | TRICKLE_IMAX(t) ((uint32_t)((t)->i_min << (t)->i_max)) |
| Convert Imax from number of doublings to clock_time_t units for trickle_param t.
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#define | TRICKLE_ACTIVE(t) ((uint32_t)(TRICKLE_IMAX(t) * t->t_active)) |
| Convert Tactive for a trickle timer to a sane clock_time_t value t is a pointer to the timer Careful of overflows.
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#define | TRICKLE_DWELL(t) ((uint32_t)(TRICKLE_IMAX(t) * t->t_dwell)) |
| Convert Tdwell for a trickle timer to a sane clock_time_t value t is a pointer to the timer Careful of overflows.
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#define | SUPPRESSION_ENABLED(t) ((t)->k != ROLL_TM_INFINITE_REDUNDANCY) |
| Check if suppression is enabled for trickle_param t t is a pointer to the timer.
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#define | SUPPRESSION_DISABLED(t) ((t)->k == ROLL_TM_INFINITE_REDUNDANCY) |
| Check if suppression is disabled for trickle_param t t is a pointer to the timer.
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#define | TIMER_CONFIGURE(m) |
| Init trickle_timer[m].
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#define | SEQ_VAL_IS_EQ(i1, i2) ((i1) == (i2)) |
| s1 is said to be equal s2 iif SEQ_VAL_IS_EQ(s1, s2) == 1
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#define | SEQ_VAL_IS_LT(i1, i2) |
| s1 is said to be less than s2 iif SEQ_VAL_IS_LT(s1, s2) == 1
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#define | SEQ_VAL_IS_GT(i1, i2) |
| s1 is said to be greater than s2 iif SEQ_VAL_IS_LT(s1, s2) == 1
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#define | SEQ_VAL_ADD(s, n) (((s) + (n)) % 0x8000) |
| Add n to s: (s + n) modulo (2 ^ SERIAL_BITS) => ((s + n) % 0x8000)
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#define | SLIDING_WINDOW_IS_USED(w) ((w)->flags & SLIDING_WINDOW_U_BIT) |
| Is Occupied sliding window location w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_IS_USED_SET(w) ((w)->flags |= SLIDING_WINDOW_U_BIT) |
| Set 'Is Used' bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_IS_USED_CLR(w) ((w)->flags &= ~SLIDING_WINDOW_U_BIT) |
| Clear 'Is Used' bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_LISTED_SET(w) ((w)->flags |= SLIDING_WINDOW_L_BIT) |
| Set 'Is Seen' bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_LISTED_CLR(w) ((w)->flags &= ~SLIDING_WINDOW_L_BIT) |
| Clear 'Is Seen' bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_IS_LISTED(w) ((w)->flags & SLIDING_WINDOW_L_BIT) |
| Is the sliding window at location w listed in current ICMP message? w: pointer to a sliding window.
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#define | SLIDING_WINDOW_M_SET(w) ((w)->flags |= SLIDING_WINDOW_M_BIT) |
| Set M bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_M_CLR(w) ((w)->flags &= ~SLIDING_WINDOW_M_BIT) |
| Clear M bit for window w w: pointer to a sliding window.
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#define | SLIDING_WINDOW_GET_M(w) ((uint8_t)(((w)->flags & SLIDING_WINDOW_M_BIT) == SLIDING_WINDOW_M_BIT)) |
| Retrieve trickle parametrization for sliding window at location w w: pointer to a sliding window.
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#define | MCAST_PACKET_TTL(p) (((struct uip_ip_hdr *)(p)->buff)->ttl) |
| Get the TTL of a buffered packet p: pointer to a packet buffer.
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#define | MCAST_PACKET_USED_SET(p) ((p)->flags |= MCAST_PACKET_U_BIT) |
| Set 'Is Used' bit for packet p p: pointer to a packet buffer.
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#define | MCAST_PACKET_USED_CLR(p) ((p)->flags &= ~MCAST_PACKET_U_BIT) |
| Clear 'Is Used' bit for packet p p: pointer to a packet buffer.
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#define | MCAST_PACKET_IS_USED(p) ((p)->flags & MCAST_PACKET_U_BIT) |
| Is Occupied buffer location p.
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#define | MCAST_PACKET_MUST_SEND(p) ((p)->flags & MCAST_PACKET_S_BIT) |
| Must we send this message this pass?
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#define | MCAST_PACKET_SEND_SET(p) ((p)->flags |= MCAST_PACKET_S_BIT) |
| Set 'Must Send' bit for message p p: pointer to a struct mcast_packet.
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#define | MCAST_PACKET_SEND_CLR(p) ((p)->flags &= ~MCAST_PACKET_S_BIT) |
| Clear 'Must Send' bit for message p p: pointer to a struct mcast_packet.
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#define | MCAST_PACKET_IS_LISTED(p) ((p)->flags & MCAST_PACKET_L_BIT) |
| Is the message p listed in current ICMP message? p: pointer to a struct mcast_packet.
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#define | MCAST_PACKET_LISTED_SET(p) ((p)->flags |= MCAST_PACKET_L_BIT) |
| Set 'Is Listed' bit for message p p: pointer to a struct mcast_packet.
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#define | MCAST_PACKET_LISTED_CLR(p) ((p)->flags &= ~MCAST_PACKET_L_BIT) |
| Clear 'Is Listed' bit for message p p: pointer to a struct mcast_packet.
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#define | MCAST_PACKET_FREE(p) ((p)->flags = 0) |
| Free a multicast packet buffer p: pointer to a struct mcast_packet.
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#define | SEQUENCE_LIST_GET_M(l) ((uint8_t)(((l)->flags & SEQUENCE_LIST_M_BIT) == SEQUENCE_LIST_M_BIT)) |
| Get the Trickle Parametrization for an ICMPv6 sequence list l: pointer to a sequence list structure.
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#define | SEQUENCE_LIST_GET_S(l) ((uint8_t)(((l)->flags & SEQUENCE_LIST_S_BIT) == SEQUENCE_LIST_S_BIT)) |
| Get the Seed ID Length for an ICMPv6 sequence list l: pointer to a sequence list structure.
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#define | HBH_GET_M(h) (((h)->flags & 0x80) == 0x80) |
| Get the Trickle Parametrization for a multicast HBHO header m: pointer to the HBHO header.
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#define | HBH_SET_M(h) ((h)->flags |= 0x80) |
| Set the Trickle Parametrization bit for a multicast HBHO header m: pointer to the HBHO header.
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#define | HBH_GET_SV_MSB(h) ((h)->flags & 0x7F) |
| Retrieve the Sequence Value MSB from a multicast HBHO header m: pointer to the HBHO header.
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#define | ROLL_TM_VER 1 |
| Supported Draft Version.
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#define | ROLL_TM_ICMP_CODE 0 |
| ROLL TM ICMPv6 code field.
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#define | ROLL_TM_IP_HOP_LIMIT 0xFF |
| Hop limit for ICMP messages.
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#define | ROLL_TM_WINS 2 |
| Number of Sliding Windows In essence: How many unique sources of simultaneous multicast traffic do we want to support for our lowpan If a node is seeding two multicast streams, parametrized on different M values, then this seed will occupy two different sliding windows.
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#define | ROLL_TM_BUFF_NUM 6 |
| Maximum Number of Buffered Multicast Messages This buffer is shared across all Seed IDs, therefore a new very active Seed may eventually occupy all slots.
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#define | ROLL_TM_SHORT_SEEDS 0 |
| Use Short Seed IDs [short: 2, long: 16 (default)] It can be argued that we should (and it would be easy to) support both at the same time but the draft doesn't list this as a MUST so we opt for code/ram savings.
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#define | ROLL_TM_DEST_ALL_NODES 0 |
| Destination address for our ICMPv6 advertisements.
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#define | ROLL_TM_SET_M_BIT 1 |
| M param for our outgoing messages By default, we set the M bit (conservative).
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IPv6 multicast according to the algorithm in the "MCAST Forwarding Using Trickle" internet draft.
This implementation is based on the draft version stored in ROLL_TM_VER.
In draft v2, the document was renamed to "Multicast Protocol for Low power and Lossy Networks (MPL)" Due to very significant changes between draft versions 1 and 2, MPL will be implemented as a separate engine and this file here will provide legacy support for Draft v1.