On 09.04.2019 16:54, Ganbold Tsagaankhuu wrote: > Author: ganbold > Date: Tue Apr 9 13:54:08 2019 > New Revision: 346052 > URL: https://svnweb.freebsd.org/changeset/base/346052 > > Log: > In some cases like NanoPI R1, its second USB ethernet > RTL8152 (chip version URE_CHIP_VER_4C10) doesn't > have hardwired MAC address, in other words, it is all zeros. > This commit fixes it by setting random MAC address > when MAC address is all zeros. > > - if (sc->sc_chip & URE_CHIP_VER_4C00) > + if ((sc->sc_chip & URE_CHIP_VER_4C00) || > + (sc->sc_chip & URE_CHIP_VER_4C10)) > ure_read_mem(sc, URE_PLA_IDR, URE_MCU_TYPE_PLA, > ue->ue_eaddr, 8); > else > ure_read_mem(sc, URE_PLA_BACKUP, URE_MCU_TYPE_PLA, > ue->ue_eaddr, 8); > + > + if (ETHER_IS_ZERO(sc->sc_ue.ue_eaddr)) { > + device_printf(sc->sc_ue.ue_dev, "MAC assigned randomly\n"); > + arc4rand(sc->sc_ue.ue_eaddr, ETHER_ADDR_LEN, 0); > + sc->sc_ue.ue_eaddr[0] &= ~0x01; /* unicast */ > + sc->sc_ue.ue_eaddr[0] |= 0x02; /* locally administered */ > + } > }
Hi,
there is ether_fakeaddr() function that is used for such purpose.
Maybe is it better to use it? Look at this commit:
https://svnweb.freebsd.org/base?view=revision&revision=345139
--
WBR, Andrey V. Elsukov
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