Author: tsoome Date: Fri Dec 1 06:37:12 2017 New Revision: 326421 URL: https://svnweb.freebsd.org/changeset/base/326421
Log: loader.efi: efipart should exclude iPXE stub block protocol iPXE does insert stub BLOCK IO protocol handle to rework other issues, this handle is not usable as it does not provide actual implementation. We can detect this situation by checking and validating the BlockSize property, so this update does make sure we have BlockSize at least 512B and its value is power of 2. PR: 223969 Reported by: Jeff Pieper Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D13297 Modified: head/stand/efi/libefi/efipart.c Modified: head/stand/efi/libefi/efipart.c ============================================================================== --- head/stand/efi/libefi/efipart.c Fri Dec 1 05:57:05 2017 (r326420) +++ head/stand/efi/libefi/efipart.c Fri Dec 1 06:37:12 2017 (r326421) @@ -257,6 +257,14 @@ efipart_hdd(EFI_DEVICE_PATH *dp) !blkio->Media->MediaPresent) { return (false); } + + /* + * We assume the block size 512 or greater power of 2. + */ + if (blkio->Media->BlockSize < 512 || + !powerof2(blkio->Media->BlockSize)) { + return (false); + } } return (true); } _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
