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Dependents:   TYBLE16_simple_data_logger TYBLE16_MP3_Air

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lwip_lowpan6_ble.c File Reference
Functions | Variables

lwip_lowpan6_ble.c File Reference

6LowPAN over BLE output for IPv6 (RFC7668). More...

Go to the source code of this file.

Functions

void ble_addr_to_eui64 (uint8_t *dst, const uint8_t *src, int public_addr)
 convert BT address to EUI64 addr
void eui64_to_ble_addr (uint8_t *dst, const uint8_t *src)
 convert EUI64 address to Bluetooth MAC addr
static err_t rfc7668_set_addr (struct lowpan6_link_addr *addr, const u8_t *in_addr, size_t in_addr_len, int is_mac_48, int is_public_addr)
 Set an address used for stateful compression.
err_t rfc7668_set_local_addr_eui64 (struct netif *netif, const u8_t *local_addr, size_t local_addr_len)
 Set the local address used for stateful compression.
err_t rfc7668_set_local_addr_mac48 (struct netif *netif, const u8_t *local_addr, size_t local_addr_len, int is_public_addr)
 Set the local address used for stateful compression.
err_t rfc7668_set_peer_addr_eui64 (struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len)
 Set the peer address used for stateful compression.
err_t rfc7668_set_peer_addr_mac48 (struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len, int is_public_addr)
 Set the peer address used for stateful compression.
static err_t rfc7668_compress (struct netif *netif, struct pbuf *p)
 Encapsulate IPv6 frames for BLE transmission.
err_t rfc7668_set_context (u8_t idx, const ip6_addr_t *context)
 Set context id IPv6 address.
err_t rfc7668_output (struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr)
 Compress outgoing IPv6 packet and pass it on to netif->linkoutput.
err_t rfc7668_input (struct pbuf *p, struct netif *netif)
 Process a received raw payload from an L2CAP channel.
err_t rfc7668_if_init (struct netif *netif)
 Initialize the netif.
err_t tcpip_rfc7668_input (struct pbuf *p, struct netif *inp)
 Pass a received packet to tcpip_thread for input processing.

Variables

static ip6_addr_t rfc7668_context [LWIP_6LOWPAN_NUM_CONTEXTS]
 context memory, containing IPv6 addresses

Detailed Description

6LowPAN over BLE output for IPv6 (RFC7668).

Definition in file lwip_lowpan6_ble.c.

Function Documentation

static err_t rfc7668_compress ( struct netif *  netif,
struct pbuf *  p 
) [static]

Encapsulate IPv6 frames for BLE transmission.

This method implements the IPv6 header compression: *) According to RFC6282 *) See Figure 2, contains base format of bit positions *) Fragmentation not necessary (done at L2CAP layer of BLE)

Note:
Currently the pbuf allocation uses 256 bytes. If longer packets are used (possible due to MTU=1480Bytes), increase it here!
Parameters:
pPbuf struct, containing the payload data
netifOutput network interface. Should be of RFC7668 type
Returns:
Same as netif->output.

Definition at line 230 of file lwip_lowpan6_ble.c.

static err_t rfc7668_set_addr ( struct lowpan6_link_addr *  addr,
const u8_t *  in_addr,
size_t  in_addr_len,
int  is_mac_48,
int  is_public_addr 
) [static]

Set an address used for stateful compression.

This expects an address of 6 or 8 bytes.

Definition at line 150 of file lwip_lowpan6_ble.c.

err_t rfc7668_set_local_addr_eui64 ( struct netif *  netif,
const u8_t *  local_addr,
size_t  local_addr_len 
)

Set the local address used for stateful compression.

This expects an address of 8 bytes.

Definition at line 176 of file lwip_lowpan6_ble.c.

err_t rfc7668_set_local_addr_mac48 ( struct netif *  netif,
const u8_t *  local_addr,
size_t  local_addr_len,
int  is_public_addr 
)

Set the local address used for stateful compression.

This expects an address of 6 bytes.

Definition at line 187 of file lwip_lowpan6_ble.c.

err_t rfc7668_set_peer_addr_eui64 ( struct netif *  netif,
const u8_t *  peer_addr,
size_t  peer_addr_len 
)

Set the peer address used for stateful compression.

This expects an address of 8 bytes.

Definition at line 198 of file lwip_lowpan6_ble.c.

err_t rfc7668_set_peer_addr_mac48 ( struct netif *  netif,
const u8_t *  peer_addr,
size_t  peer_addr_len,
int  is_public_addr 
)

Set the peer address used for stateful compression.

This expects an address of 6 bytes.

Definition at line 209 of file lwip_lowpan6_ble.c.

err_t tcpip_rfc7668_input ( struct pbuf *  p,
struct netif *  inp 
)

Pass a received packet to tcpip_thread for input processing.

Parameters:
pthe received packet, p->payload pointing to the IEEE 802.15.4 header.
inpthe network interface on which the packet was received
Returns:
see tcpip_inpkt, same return values

Definition at line 440 of file lwip_lowpan6_ble.c.

Variable Documentation

ip6_addr_t rfc7668_context[LWIP_6LOWPAN_NUM_CONTEXTS] [static]

context memory, containing IPv6 addresses

Definition at line 87 of file lwip_lowpan6_ble.c.

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