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6LowPan: Change how the destination node address is handled in the start endpoint configuration. When the star endpoint sent the IPv6 destination address, the HC06 compression logic elided the address -- meaning that it could be reconstructed by the recipient based on the receiver's assigned short address. However, when intercepted by the hub, the uncompressed address does not know the short address of the recipient and instead uses the short address of the hub. This means two things: (1) it looks like the hub address is the destination address, and (2) the uncompressed UDP packet has a bad checksum. This change assures that the destination IPv6 address is not elided in the case of the star endpoint configuration.

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This commit is contained in:
Gregory Nutt 2017-06-30 09:32:17 -06:00
parent ad3ea72ff5
commit af8c5c86f3
8 changed files with 259 additions and 185 deletions
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23
configs/clicker2-stm32/README.txt
View File

@ -603,7 +603,7 @@ Configurations
CONFIG_NET_STAR=y
CONFIG_NET_STARPOINT=y
The CONFIG_NET_STARPOINT selection informs the endpoint that is
The CONFIG_NET_STARPOINT selection informs the endpoint that it
must send all frames to the hub of the star, rather than directly
to the recipient.
@ -665,9 +665,24 @@ Configurations
Where <server-ip> is the IP address of either the E1 or I2 endpoints.
STATUS:
2017-06-29: Configurations added. Initial testing was not very
fruitful: There is error in the i8sak acceptaccept logic that
currently will not support multiple endpoints.
2017-06-29: Configurations added. Initial testing indicates that
the TCP Telnet client can successfully establish sessions with
the two star endpoints. When testing communications between the
two star endpoints via the hub, the frames are correctly directed
to the hub. However, they are not being forwarded to the other
endpoint.
2017-06-30: The failure to forward is understood: When the star
endpoint sent the IPv6 destination address, the HC06 compression
logic elided the address -- meaning that it could be reconstructed
based on the receiver's assigned short address. However, when
intercepted by the hub, the uncompressed address does not know
the short address of the recipient and instead uses the short
address of the hub. This means two things: (1) it looks like
the hub address is the destination address, and (2) the
uncompressed UDP packet has a bad checksum.
This required a change to assure that the destination IPv6 address
is not elided in the case of the star endpoint configuration.
nsh:

33
net/sixlowpan/README.txt
View File

@ -1,3 +1,11 @@
6LoWPAN Contents
----------------
o 6LoWPAN Addressing
o IPv6 Neighbor Discovery
o Optimal 6LoWPAN Configuration
o Star Configuration
6LoWPAN Addressing
------------------
@ -142,3 +150,28 @@ The payload length is encoded in the LS 11-bits of the first 16-bit value:
In this example the payload size is 0x050e or 1,294. The tag is 0x000b. In
the second frame, the fifth byte contains the offset 0x0d which is 13 << 3 =
104 bytes, the size of the payload on the first packet.
Star Configuration
------------------
The 6LoWPAN stack can be specially configured as member in a star topology;
either as a endpoint on the star os the star hub. The endpoint is
created with the following settings in the configuration file:
CONFIG_NET_STAR=y
CONFIG_NET_STARPOINT=y
The CONFIG_NET_STARPOINT selection informs the endpoint 6LoWPAN stack that
it must send all frames to the hub of the star, rather than directly to the
recipient. The star hub is assumed to be the cooordinator.
The star hub configuration, on the other hand, uses these setting:
CONFIG_NET_STAR=y
CONFIG_NET_STARHUB=y
CONFIG_NET_IPFORWARD=y
The CONFIG_NET_IPFORWARD selection informs the hub that if it receives any
packets that are not destined for the hub, it should forward those packets
appropriately. This affects the behavior of IPv6 packet reception logic but
does not change the behavior of the 6LoWPAN stack.

18
net/sixlowpan/sixlowpan_framelist.c
View File

@ -324,22 +324,7 @@ int sixlowpan_queue_frames(FAR struct ieee802154_driver_s *ieee,
&ieee->i_dev.d_mac.ieee802154);
#endif
#ifdef CONFIG_NET_STARPOINT
/* If this node is a "point" in a star topology, then the destination
* MAC address is the address of the hub/PAN coordinator.
*/
if (destmac->extended)
{
pktmeta.dextended = TRUE;
ret = sixlowpan_coord_eaddr(ieee, pktmeta.dest.eaddr.u8);
}
else
{
ret = sixlowpan_coord_saddr(ieee, pktmeta.dest.saddr.u8);
}
#else
/* Otherwise, it is the actual destination node address */
/* Copy the destination node address into the meta data */
if (destmac->extended)
{
@ -350,7 +335,6 @@ int sixlowpan_queue_frames(FAR struct ieee802154_driver_s *ieee,
{
sixlowpan_saddrcopy(pktmeta.dest.saddr.u8, destmac->u.saddr.u8);
}
#endif
/* Get the destination PAN ID.
*

8
net/sixlowpan/sixlowpan_input.c
View File

@ -830,7 +830,13 @@ int sixlowpan_input(FAR struct ieee802154_driver_s *ieee,
* address.
*/
sixlowpan_addrfromip(ipv6hdr->destipaddr, &destmac);
ret = sixlowpan_destaddrfromip(ieee, ipv6hdr->destipaddr,
&destmac);
if (ret < 0)
{
nerr("ERROR: Failed to dest MAC address: %d\n", ret);
goto drop;
}
/* The data payload should follow the IPv6 header plus
* the protocol header.

72
net/sixlowpan/sixlowpan_internal.h
View File

@ -536,25 +536,28 @@ int sixlowpan_uncompresshdr_hc1(FAR const struct ieee802154_data_ind_s *ind,
#endif
/****************************************************************************
* Name: sixlowpan_islinklocal, sixlowpan_addrfromip, and
* Name: sixlowpan_islinklocal, sixlowpan_destaddrfromip, and
* sixlowpan_ismacbased
*
* Description:
* sixlowpan_{s|e]addrfromip(): Extract the IEEE 802.15.14 address from a
* MAC-based IPv6 address. sixlowpan_addrfromip() is intended to handle a
* tagged address; sixlowpan_saddrfromip() and sixlowpan_eaddrfromip()
* specifically handle short and extended addresses, respectively.
* sixlowpan_destaddrfromip(): Extract the IEEE 802.15.14 destination
* address from a MAC-based destination IPv6 address. This function
* handles a tagged address union which may either a short or and
* extended destination address.
*
* In the case there the IEEE 802.15.4 node functions as an endpoint in a
* start topology, the destination address will, instead, be the address
* of the star hub (which is assumed to be the address of the cooordinator).
*
* sixlowpan_ipfrom[s|e]addr(): Create a link-local, MAC-based IPv6
* address from an IEEE802.15.4 short address (saddr) or extended address
* (eaddr).
*
* sixlowpan_islinklocal() and sixlowpan_ismacbased() will return true for
* address created in this fashion. sixlowpan_addrfromip() is intended to
* handle a tagged address or any size; sixlowpan_issaddrbased() and
* sixlowpan_iseaddrbased() specifically handle short and extended
* addresses. Local addresses are of a fixed but configurable size and
* sixlowpan_isaddrbased() is for use with such local addresses.
* address created in this fashion. sixlowpan_destaddrfromip() is intended to
* handle a tagged address or any size. Local addresses are of a fixed but
* configurable size and sixlowpan_isaddrbased() is for use with such local
* addresses.
*
* 128 112 96 80 64 48 32 16
* ---- ---- ---- ---- ---- ---- ---- ----
@ -565,12 +568,9 @@ int sixlowpan_uncompresshdr_hc1(FAR const struct ieee802154_data_ind_s *ind,
#define sixlowpan_islinklocal(ipaddr) ((ipaddr)[0] == NTOHS(0xfe80))
void sixlowpan_saddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_saddr_s *saddr);
void sixlowpan_eaddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_eaddr_s *eaddr);
void sixlowpan_addrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_tagaddr_s *addr);
int sixlowpan_destaddrfromip(FAR struct ieee802154_driver_s *ieee,
const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_tagaddr_s *addr);
void sixlowpan_ipfromsaddr(FAR const uint8_t *saddr,
FAR net_ipv6addr_t ipaddr);
@ -593,46 +593,6 @@ bool sixlowpan_iseaddrbased(const net_ipv6addr_t ipaddr,
bool sixlowpan_ismacbased(const net_ipv6addr_t ipaddr,
FAR const struct sixlowpan_tagaddr_s *addr);
/****************************************************************************
* Name: sixlowpan_coord_eaddr
*
* Description:
* Get the extended address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* eaddr - The location in which to return the extended address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_STARPOINT
int sixlowpan_coord_eaddr(FAR struct ieee802154_driver_s *ieee,
FAR uint8_t *eaddr);
#endif
/****************************************************************************
* Name: sixlowpan_coord_saddr
*
* Description:
* Get the short address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* saddr - The location in which to return the short address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_STARPOINT
int sixlowpan_coord_saddr(FAR struct ieee802154_driver_s *ieee,
FAR uint8_t *saddr);
#endif
/****************************************************************************
* Name: sixlowpan_src_panid
*

20
net/sixlowpan/sixlowpan_tcpsend.c
View File

@ -835,7 +835,13 @@ ssize_t psock_6lowpan_tcp_send(FAR struct socket *psock, FAR const void *buf,
* an encoding of the MAC address in the IPv6 address.
*/
sixlowpan_addrfromip(conn->u.ipv6.raddr, &destmac);
ret = sixlowpan_destaddrfromip((FAR struct ieee802154_driver_s *)dev,
conn->u.ipv6.raddr, &destmac);
if (ret < 0)
{
nerr("ERROR: Failed to dest MAC address: %d\n", ret);
return (ssize_t)ret;
}
/* Set the socket state to sending */
@ -859,7 +865,7 @@ ssize_t psock_6lowpan_tcp_send(FAR struct socket *psock, FAR const void *buf,
nerr("ERROR: sixlowpan_send_packet() failed: %d\n", ret);
psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_IDLE);
return (ssize_t)buflen;
return (ssize_t)ret;
}
/* Set the socket state to idle */
@ -942,12 +948,19 @@ void sixlowpan_tcp_send(FAR struct net_driver_s *dev,
FAR uint8_t *buf;
uint16_t hdrlen;
uint16_t buflen;
int ret;
/* Get the IEEE 802.15.4 MAC address of the destination. This
* assumes an encoding of the MAC address in the IPv6 address.
*/
sixlowpan_addrfromip(ipv6hdr->ipv6.destipaddr, &destmac);
ret = sixlowpan_destaddrfromip((FAR struct ieee802154_driver_s *)dev,
ipv6hdr->ipv6.destipaddr, &destmac);
if (ret < 0)
{
nerr("ERROR: Failed to dest MAC address: %d\n", ret);
goto drop;
}
/* Get the IPv6 + TCP combined header length. The size of the TCP
* header is encoded in the top 4 bits of the tcpoffset field (in
@ -977,6 +990,7 @@ void sixlowpan_tcp_send(FAR struct net_driver_s *dev,
}
}
drop:
dev->d_len = 0;
}

27
net/sixlowpan/sixlowpan_udpsend.c
View File

@ -297,15 +297,21 @@ ssize_t psock_6lowpan_udp_sendto(FAR struct socket *psock,
g_netstats.udp.sent++;
#endif
/* Set the socket state to sending */
psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_SEND);
/* Get the IEEE 802.15.4 MAC address of the destination This assumes an
* encoding of the MAC address in the IPv6 address.
*/
sixlowpan_addrfromip(to6->sin6_addr.in6_u.u6_addr16, &destmac);
ret = sixlowpan_destaddrfromip((FAR struct ieee802154_driver_s *)dev,
to6->sin6_addr.in6_u.u6_addr16, &destmac);
if (ret < 0)
{
nerr("ERROR: Failed to dest MAC address: %d\n", ret);
return (ssize_t)ret;
}
/* Set the socket state to sending */
psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_SEND);
/* If routable, then call sixlowpan_send() to format and send the 6LoWPAN
* packet.
@ -328,7 +334,7 @@ ssize_t psock_6lowpan_udp_sendto(FAR struct socket *psock,
/* Set the socket state to idle */
psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_IDLE);
return ret;
return (ssize_t)ret;
}
/****************************************************************************
@ -470,7 +476,13 @@ void sixlowpan_udp_send(FAR struct net_driver_s *dev,
* assumes an encoding of the MAC address in the IPv6 address.
*/
sixlowpan_addrfromip(ipv6udp->ipv6.destipaddr, &destmac);
ret = sixlowpan_destaddrfromip((FAR struct ieee802154_driver_s *)dev,
ipv6udp->ipv6.destipaddr, &destmac);
if (ret < 0)
{
nerr("ERROR: Failed to dest MAC address: %d\n", ret);
goto drop;
}
/* Get the IPv6 + UDP combined header length. */
@ -497,6 +509,7 @@ void sixlowpan_udp_send(FAR struct net_driver_s *dev,
}
}
drop:
dev->d_len = 0;
}
#endif

243
net/sixlowpan/sixlowpan_utils.c
View File

@ -64,17 +64,17 @@
#ifdef CONFIG_NET_6LOWPAN
/****************************************************************************
* Public Functions
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: sixlowpan_{s|e]addrfromip
* Name: sixlowpan_[s|e]addrfromip
*
* Description:
* sixlowpan_{s|e]addrfromip(): Extract the IEEE 802.15.14 address from a
* MAC-based IPv6 address. sixlowpan_addrfromip() is intended to handle a
* tagged address; sixlowpan_saddrfromip() and sixlowpan_eaddrfromip()
* specifically handle short and extended addresses, respectively.
* sixlowpan_[s|e]addrfromip(): Extract the IEEE 802.15.14 address from a
* MAC-based IPv6 address. sixlowpan_saddrfromip() and
* sixlowpan_eaddrfromip() handle short and extended addresses,
* respectively.
*
* 128 112 96 80 64 48 32 16
* ---- ---- ---- ---- ---- ---- ---- ----
@ -83,8 +83,9 @@
*
****************************************************************************/
void sixlowpan_saddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_saddr_s *saddr)
#ifndef CONFIG_NET_STARPOINT
static void sixlowpan_saddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_saddr_s *saddr)
{
DEBUGASSERT(ipaddr[0] == HTONS(0xfe80));
@ -95,8 +96,8 @@ void sixlowpan_saddrfromip(const net_ipv6addr_t ipaddr,
saddr->u8[0] ^= 0x02;
}
void sixlowpan_eaddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_eaddr_s *eaddr)
static void sixlowpan_eaddrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_eaddr_s *eaddr)
{
FAR uint8_t *eptr = eaddr->u8;
int i;
@ -113,22 +114,147 @@ void sixlowpan_eaddrfromip(const net_ipv6addr_t ipaddr,
eaddr->u8[0] ^= 0x02;
}
#endif /* !CONFIG_NET_STARPOINT */
void sixlowpan_addrfromip(const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_tagaddr_s *addr)
/****************************************************************************
* Name: sixlowpan_coord_eaddr
*
* Description:
* Get the extended address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* eaddr - The location in which to return the extended address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#if defined(CONFIG_NET_STARPOINT) && defined(CONFIG_NET_6LOWPAN_EXTENDEDADDR)
static int sixlowpan_coord_eaddr(FAR struct ieee802154_driver_s *ieee,
FAR struct sixlowpan_eaddr_s *eaddr)
{
FAR struct net_driver_s *dev = &ieee->i_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, ieee->i_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_EADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_EADDRCOPY(eaddr->u8, arg.u.getreq.attrval.mac.eaddr);
return OK;
}
#endif
/****************************************************************************
* Name: sixlowpan_coord_saddr
*
* Description:
* Get the short address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* saddr - The location in which to return the short address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#if defined(CONFIG_NET_STARPOINT) && !defined(CONFIG_NET_6LOWPAN_EXTENDEDADDR)
static int sixlowpan_coord_saddr(FAR struct ieee802154_driver_s *ieee,
FAR struct sixlowpan_saddr_s *saddr)
{
FAR struct net_driver_s *dev = &ieee->i_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, ieee->i_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_SADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_SADDRCOPY(saddr->u8, arg.u.getreq.attrval.mac.saddr);
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sixlowpan_destaddrfromip
*
* Description:
* sixlowpan_destaddrfromip(): Extract the IEEE 802.15.14 destination
* address from a MAC-based destination IPv6 address. This function
* handles a tagged address union which may either a short or and
* extended destination address.
*
* 128 112 96 80 64 48 32 16
* ---- ---- ---- ---- ---- ---- ---- ----
* xxxx 0000 0000 0000 0000 00ff fe00 xxxx 2-byte short address IEEE 48-bit MAC
* xxxx 0000 0000 0000 xxxx xxxx xxxx xxxx 8-byte extended address IEEE EUI-64
*
* In the case there the IEEE 802.15.4 node functions as an endpoint in a
* start topology, the destination address will, instead, be the address
* of the star hub (which is assumed to be the address of the cooordinator).
*
****************************************************************************/
int sixlowpan_destaddrfromip(FAR struct ieee802154_driver_s *ieee,
const net_ipv6addr_t ipaddr,
FAR struct sixlowpan_tagaddr_s *destaddr)
{
#ifdef CONFIG_NET_STARPOINT
int ret;
/* If this node is a "point" in a star topology, then the destination
* MAC address is the address of the hub/PAN coordinator.
*/
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
ret = sixlowpan_coord_eaddr(ieee, &destaddr->u.eaddr);
destaddr->extended = true;
#else
memset(destaddr, 0, sizeof(struct sixlowpan_tagaddr_s));
ret = sixlowpan_coord_saddr(ieee, &destaddr->u.saddr);
#endif
return ret;
#else
DEBUGASSERT(ipaddr[0] == HTONS(0xfe80));
/* Otherwise, the destination MAC address is encoded in the IP address */
if (SIXLOWPAN_IS_IID_16BIT_COMPRESSABLE(ipaddr))
{
memset(addr, 0, sizeof(struct sixlowpan_tagaddr_s));
sixlowpan_saddrfromip(ipaddr, &addr->u.saddr);
memset(destaddr, 0, sizeof(struct sixlowpan_tagaddr_s));
sixlowpan_saddrfromip(ipaddr, &destaddr->u.saddr);
}
else
{
sixlowpan_eaddrfromip(ipaddr, &addr->u.eaddr);
addr->extended = true;
sixlowpan_eaddrfromip(ipaddr, &destaddr->u.eaddr);
destaddr->extended = true;
}
return OK;
#endif
}
/****************************************************************************
@ -179,11 +305,10 @@ void sixlowpan_ipfromeaddr(FAR const uint8_t *eaddr,
*
* Description:
* sixlowpan_ismacbased() will return true for IP addresses formed from
* IEEE802.15.4 MAC addresses. sixlowpan_addrfromip() is intended to
* handle a tagged address or any size; sixlowpan_issaddrbased() and
* sixlowpan_iseaddrbased() specifically handle short and extended
* addresses. Local addresses are of a fixed but configurable size and
* sixlowpan_isaddrbased() is for use with such local addresses.
* IEEE802.15.4 MAC addresses. sixlowpan_destaddrfromip() is intended to
* handle a tagged address or any size. Local addresses are of a fixed
* but configurable size and sixlowpan_isaddrbased() is for use with such
* local addresses.
*
*
* 128 112 96 80 64 48 32 16
@ -227,82 +352,6 @@ bool sixlowpan_ismacbased(const net_ipv6addr_t ipaddr,
}
}
/****************************************************************************
* Name: sixlowpan_coord_eaddr
*
* Description:
* Get the extended address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* eaddr - The location in which to return the extended address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_STARPOINT
int sixlowpan_coord_eaddr(FAR struct ieee802154_driver_s *ieee,
FAR uint8_t *eaddr)
{
FAR struct net_driver_s *dev = &ieee->i_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, ieee->i_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_EADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_EADDRCOPY(eaddr, arg.u.getreq.attrval.mac.eaddr);
return OK;
}
#endif
/****************************************************************************
* Name: sixlowpan_coord_saddr
*
* Description:
* Get the short address of the PAN coordinator.
*
* Input parameters:
* ieee - A reference IEEE802.15.4 MAC network device structure.
* saddr - The location in which to return the short address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#ifdef CONFIG_NET_STARPOINT
int sixlowpan_coord_saddr(FAR struct ieee802154_driver_s *ieee,
FAR uint8_t *saddr)
{
FAR struct net_driver_s *dev = &ieee->i_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, ieee->i_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_SADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_SADDRCOPY(saddr, arg.u.getreq.attrval.mac.saddr);
return OK;
}
#endif
/****************************************************************************
* Name: sixlowpan_src_panid
*