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Merged in antmerlino/nuttx/sixlowpan-ul-bit (pull request #787)

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sixlowpan: Fixes logic surrounding the Universal/Local bit. This bit represents whether the IID is locally/globally administered. The U/L bit is bit 1 of the MSB of the EUI-64. It should only be inverted in cases where there is a full EUI-64. In cases whe

* sixlowpan: Fixes logic surrounding the Universal/Local bit. This bit represents whether the IID is locally/globally administered. The U/L bit is bit 1 of the MSB of the EUI-64. It should only be inverted in cases where there is a full EUI-64. In cases where the IID is derived from say, a short address, this bit should be forced to 0, indicating that it is locally administered.

    See:

    https://tools.ietf.org/html/rfc4291#section-2.5.1
    https://tools.ietf.org/html/rfc4944#section-6
    https://tools.ietf.org/html/rfc2464#section-4

* sixlowpan: Account for endianness with U/L bit.

Approved-by: GregoryN <gnutt@nuttx.org>
This commit is contained in:
Anthony Merlino
2018-12-18 13:34:41 +00:00
committed by GregoryN
parent 0d20c39250
commit b48a62a7d4
9 changed files with 30 additions and 31 deletions
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wireless/ieee802154/mac802154_loopback.c
+4 -2
View File
@@ -229,7 +229,10 @@ static void lo_addr2ip(FAR struct net_driver_s *dev)
dev->d_ipv6addr[5] = (uint16_t)g_eaddr[2] << 8 | (uint16_t)g_eaddr[3];
dev->d_ipv6addr[6] = (uint16_t)g_eaddr[4] << 8 | (uint16_t)g_eaddr[5];
dev->d_ipv6addr[7] = (uint16_t)g_eaddr[6] << 8 | (uint16_t)g_eaddr[7];
dev->d_ipv6addr[4] ^= 0x200;
/* Invert the U/L bit */
dev->d_ipv6addr[4] ^= HTONS(0x0200);
}
#endif
#else
@@ -251,7 +254,6 @@ static void lo_addr2ip(FAR struct net_driver_s *dev)
dev->d_ipv6addr[5] = HTONS(0x00ff);
dev->d_ipv6addr[6] = HTONS(0xfe00);
dev->d_ipv6addr[7] = (uint16_t)g_saddr[0] << 8 | (uint16_t)g_saddr[1];
dev->d_ipv6addr[7] ^= 0x200;
#endif
}
#endif
wireless/ieee802154/mac802154_netdev.c
+4 -2
View File
@@ -296,7 +296,10 @@ static int macnet_advertise(FAR struct net_driver_s *dev)
dev->d_ipv6addr[5] = (uint16_t)eaddr[2] << 8 | (uint16_t)eaddr[3];
dev->d_ipv6addr[6] = (uint16_t)eaddr[4] << 8 | (uint16_t)eaddr[5];
dev->d_ipv6addr[7] = (uint16_t)eaddr[6] << 8 | (uint16_t)eaddr[7];
dev->d_ipv6addr[4] ^= 0x200;
/* Invert the U/L bit */
dev->d_ipv6addr[4] ^= HTONS(0x0200);
return OK;
}
@@ -334,7 +337,6 @@ static int macnet_advertise(FAR struct net_driver_s *dev)
dev->d_ipv6addr[5] = HTONS(0x00ff);
dev->d_ipv6addr[6] = HTONS(0xfe00);
dev->d_ipv6addr[7] = (uint16_t)saddr[0] << 8 | (uint16_t)saddr[1];
dev->d_ipv6addr[7] ^= 0x200;
return OK;
}
#endif