Date: Mon, 13 Jul 2020 02:24:31 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363140 - head/usr.bin/mkimg Message-ID: <202007130224.06D2OVWr035464@repo.freebsd.org>
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Author: gonzo Date: Mon Jul 13 02:24:31 2020 New Revision: 363140 URL: https://svnweb.freebsd.org/changeset/base/363140 Log: Fix invalid VHDX generation for image larger than 4Gb - Part of BAT payload location was lost due to invalid BAT entry encoding type (32 bits instead of 64 bits) - The sequence of PB/SB entries in BAT was broken due to off-by-one index check. It worked for smaller than 4Gb because there were no SB entries in BAT. MFC after: 1 day Modified: head/usr.bin/mkimg/vhdx.c Modified: head/usr.bin/mkimg/vhdx.c ============================================================================== --- head/usr.bin/mkimg/vhdx.c Mon Jul 13 02:09:21 2020 (r363139) +++ head/usr.bin/mkimg/vhdx.c Mon Jul 13 02:24:31 2020 (r363140) @@ -429,7 +429,7 @@ vhdx_write_bat(int fd, uint64_t image_size) payload_offset = 3 + (bat_size / SIZE_1MB); bat_ptr = 0; for (idx = 0; idx < data_block_count; idx++) { - le32enc(bat + bat_ptr, + le64enc(bat + bat_ptr, BAT_ENTRY(payload_offset, PAYLOAD_BLOCK_FULLY_PRESENT)); bat_ptr += 8; payload_offset += (PAYLOAD_BLOCK_SIZE / SIZE_1MB); @@ -445,9 +445,9 @@ vhdx_write_bat(int fd, uint64_t image_size) bat_ptr = 0; } - if ((idx % chunk_ratio) == 0 && - (idx > 0) && (idx != data_block_count - 1)) { - le32enc(bat + bat_ptr, + if (((idx + 1) % chunk_ratio) == 0 && + (idx != data_block_count - 1)) { + le64enc(bat + bat_ptr, BAT_ENTRY(0, SB_BLOCK_NOT_PRESENT)); bat_ptr += 8;
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