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libefivar: Fix the wrong MAC address length

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Network interface type should be checked before the conversion between
text device path node and MAC device path. Otherwise, the MAC text string
can't be converted to the representation of a device node, which leads to
the series failure of network HII configuration(e.g. IP, VLAN, HTTP Boot
configuration in Network Device List).

Obtained from:	2d67f2bae3
Pull Request: https://github.com/freebsd/freebsd-src/pull/581
This commit is contained in:
Jose Luis Duran 2022-02-25 11:47:53 -03:00 committed by Warner Losh
parent bff83dd395
commit 81a659e364
1 changed files with 4 additions and 0 deletions
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4
lib/libefivar/efivar-dp-parse.c
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@ -1920,6 +1920,10 @@ DevPathFromTextMAC (
MACDevPath->IfType = (UINT8) Strtoi (IfTypeStr);
Length = sizeof (EFI_MAC_ADDRESS);
if (MACDevPath->IfType == 0x01 || MACDevPath->IfType == 0x00) {
Length = 6;
}
StrHexToBytes (AddressStr, Length * 2, MACDevPath->MacAddress.Addr, Length);
return (EFI_DEVICE_PATH_PROTOCOL *) MACDevPath;