From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bdDG5-00008c-FE for qemu-devel@nongnu.org; Fri, 26 Aug 2016 05:17:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bdDG1-0003uB-WB for qemu-devel@nongnu.org; Fri, 26 Aug 2016 05:17:05 -0400 From: Reda Sallahi Date: Fri, 26 Aug 2016 11:16:38 +0200 Message-Id: <20160826091643.15841-3-fullmanet@gmail.com> In-Reply-To: <20160826091643.15841-1-fullmanet@gmail.com> References: <20160826091643.15841-1-fullmanet@gmail.com> Subject: [Qemu-devel] [PATCH v2 2/7] qemu-img: add iflag and oflag options to dd List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Kevin Wolf , Max Reitz , Fam Zheng , Stefan Hajnoczi , Reda Sallahi This adds the iflag and oflag options which defines the list of flags used for reading and writing respectively. The list is comma-separated. The iflag option supports direct, dsync, sync, count_bytes and skip_bytes and oflag supports direct, dsync, sync and seek_bytes. They are similar to their counterparts on GNU dd(1). Two tests were added to test iflag and oflag. Signed-off-by: Reda Sallahi --- qemu-img-cmds.hx | 4 +- qemu-img.c | 172 +++++++++++++++++++++++++++++++++++++++------ qemu-img.texi | 32 +++++++-- tests/qemu-iotests/163 | 103 +++++++++++++++++++++++++++ tests/qemu-iotests/163.out | 135 +++++++++++++++++++++++++++++++++++ tests/qemu-iotests/164 | 100 ++++++++++++++++++++++++++ tests/qemu-iotests/164.out | 75 ++++++++++++++++++++ tests/qemu-iotests/group | 2 + 8 files changed, 595 insertions(+), 28 deletions(-) create mode 100755 tests/qemu-iotests/163 create mode 100644 tests/qemu-iotests/163.out create mode 100755 tests/qemu-iotests/164 create mode 100644 tests/qemu-iotests/164.out diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx index e79a577..25eaf71 100644 --- a/qemu-img-cmds.hx +++ b/qemu-img-cmds.hx @@ -46,9 +46,9 @@ STEXI ETEXI DEF("dd", img_dd, - "dd [--image-opts] [-f fmt] [-O output_fmt] [bs=block_size] [count=blocks] [skip=blocks] [seek=blocks] [conv=notrunc] if=input of=output") + "dd [--image-opts] [-f fmt] [-O output_fmt] [bs=block_size] [count=blocks] [skip=blocks] [seek=blocks] [conv=notrunc] [iflag=flags] [oflag=flags] if=input of=output") STEXI - @item dd [--image-opts] [-f @var{fmt}] [-O @var{output_fmt}] [bs=@var{block_size}] [count=@var{blocks}] [skip=@var{blocks}] [seek=@var{blocks}] [conv=notrunc] if=@var{input} of=@var{output} + @item dd [--image-opts] [-f @var{fmt}] [-O @var{output_fmt}] [bs=@var{block_size}] [count=@var{blocks}] [skip=@var{blocks}] [seek=@var{blocks}] [conv=notrunc] [iflag=@var{flags}] [oflag=@var{flags}] if=@var{input} of=@var{output} ETEXI DEF("info", img_info, diff --git a/qemu-img.c b/qemu-img.c index 7d313fd..7b2c525 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -176,7 +176,16 @@ static void QEMU_NORETURN help(void) " 'of=FILE' write to FILE\n" " 'skip=N' skip N bs-sized blocks at the start of input\n" " 'seek=N' seek N bs-sized blocks at the start of output\n" - " 'conv=notrunc' do not truncate the output file\n"; + " 'conv=notrunc' do not truncate the output file\n" + " 'iflags=FLAGS' read using the comma-separated flags list\n" + " 'oflags=FLAGS' read using the comma-separated flags list\n\n" + "List of FLAGS for dd:\n" + " 'direct' use direct I/O for data\n" + " 'dsync' use synchronized I/O for data\n" + " 'sync' use synchronized I/O for data\n" + " 'count_bytes' use 'count=N' as a byte count (iflag only)\n" + " 'skip_bytes' use 'skip=N' as a byte count (iflag only)\n" + " 'seek_bytes' use 'seek=N' as a byte count (oflag only)\n"; printf("%s\nSupported formats:", help_msg); bdrv_iterate_format(format_print, NULL); @@ -3811,6 +3820,8 @@ out: #define C_SKIP 020 #define C_SEEK 040 #define C_CONV 0100 +#define C_IFLAG 0200 +#define C_OFLAG 0400 struct DdInfo { unsigned int flags; @@ -3823,6 +3834,7 @@ struct DdIo { char *filename; uint8_t *buf; int64_t offset; + unsigned int flags; }; struct DdOpts { @@ -3831,6 +3843,11 @@ struct DdOpts { unsigned int flag; }; +struct DdSymbols { + const char *name; + unsigned int value; +}; + static int img_dd_bs(const char *arg, struct DdIo *in, struct DdIo *out, struct DdInfo *dd) @@ -3930,6 +3947,73 @@ static int img_dd_conv(const char *arg, } } +#define C_DIRECT 01 +#define C_IOFLAG_SYNC 02 +#define C_DSYNC 04 +#define C_COUNT_BYTES 010 +#define C_SKIP_BYTES 020 +#define C_SEEK_BYTES 040 + +static int img_dd_flag(const char *arg, struct DdIo *io, + const struct DdSymbols *flags, const char *err_str) +{ + int ret = 0; + const char *tok; + char *str, *tmp; + + tmp = str = g_strdup(arg); + + while (tmp != NULL && !ret) { + tok = qemu_strsep(&tmp, ","); + int j; + for (j = 0; flags[j].name != NULL; j++) { + if (!strcmp(tok, flags[j].name)) { + io->flags |= flags[j].value; + break; + } + } + if (flags[j].name == NULL) { + error_report("%s: '%s'", err_str, tok); + ret = 1; + } + } + + g_free(str); + + return ret; +} + +static int img_dd_iflag(const char *arg, + struct DdIo *in, struct DdIo *out, + struct DdInfo *dd) +{ + const struct DdSymbols flags[] = { + { "direct", C_DIRECT }, + { "dsync", C_DSYNC }, + { "sync", C_IOFLAG_SYNC }, + { "count_bytes", C_COUNT_BYTES }, + { "skip_bytes", C_SKIP_BYTES }, + { NULL, 0} + }; + + return img_dd_flag(arg, in, flags, "invalid input flag"); +} + +static int img_dd_oflag(const char *arg, + struct DdIo *in, struct DdIo *out, + struct DdInfo *dd) +{ + const struct DdSymbols flags[] = { + { "direct", C_DIRECT }, + { "dsync", C_DSYNC }, + { "sync", C_IOFLAG_SYNC }, + { "seek_bytes", C_SEEK_BYTES }, + { NULL, 0 } + }; + + return img_dd_flag(arg, out, flags, "invalid output flag"); +} + static int img_dd(int argc, char **argv) { int ret = 0; @@ -3947,6 +4031,9 @@ static int img_dd(int argc, char **argv) const char *out_filename; int64_t size = 0, out_size = 0; int64_t block_count = 0, out_pos, in_pos; + bool writethrough = false; + int flags = 0; + int ibsz = 0, obsz = 0; struct DdInfo dd = { .flags = 0, .count = 0, @@ -3956,13 +4043,15 @@ static int img_dd(int argc, char **argv) .bsz = 512, /* Block size is by default 512 bytes */ .filename = NULL, .buf = NULL, - .offset = 0 + .offset = 0, + .flags = 0 }; struct DdIo out = { .bsz = 512, .filename = NULL, .buf = NULL, - .offset = 0 + .offset = 0, + .flags = 0 }; const struct DdOpts options[] = { @@ -3973,6 +4062,8 @@ static int img_dd(int argc, char **argv) { "skip", img_dd_skip, C_SKIP }, { "seek", img_dd_seek, C_SEEK }, { "conv", img_dd_conv, C_CONV }, + { "iflag", img_dd_iflag, C_IFLAG }, + { "oflag", img_dd_oflag, C_OFLAG }, { NULL, NULL, 0 } }; const struct option long_options[] = { @@ -4038,8 +4129,13 @@ static int img_dd(int argc, char **argv) arg = NULL; } + obsz = out.bsz; + if (out.flags & C_SEEK_BYTES) { + obsz = 1; + } + /* Overflow check for seek */ - if (out.offset > INT64_MAX / out.bsz) { + if (out.offset > INT64_MAX / obsz) { error_report("seek with the block size specified is too large " "for data type used"); ret = -1; @@ -4051,29 +4147,50 @@ static int img_dd(int argc, char **argv) ret = -1; goto out; } - blk1 = img_open(image_opts, in.filename, fmt, 0, false, false); + /* These flags make sense only for output but we're adding them anyway + to have something close to GNU dd(1) */ + if (in.flags & C_DSYNC || in.flags & C_IOFLAG_SYNC) { + writethrough = true; + } + if (in.flags & C_DIRECT) { + flags |= BDRV_O_NOCACHE; + } + + blk1 = img_open(image_opts, in.filename, fmt, flags, writethrough, false); if (!blk1) { ret = -1; goto out; } + writethrough = false; /* Reset to the default value */ size = blk_getlength(blk1); + if (size < 0) { error_report("Failed to get size for '%s'", in.filename); ret = -1; goto out; } - if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz && - dd.count * in.bsz < size) { - size = dd.count * in.bsz; + ibsz = in.bsz; + + if (in.flags & C_COUNT_BYTES) { + ibsz = 1; + } + if (dd.flags & C_COUNT && dd.count <= INT64_MAX / ibsz && + dd.count * ibsz < size) { + size = dd.count * ibsz; + } + + ibsz = in.bsz; /* Reset ibsz for the skip option */ + if (in.flags & C_SKIP_BYTES) { + ibsz = 1; } /* Overflow means the specified offset is beyond input image's size */ - if (in.offset > INT64_MAX / in.bsz || size < in.offset * in.bsz) { - out_size = out.offset * out.bsz; + if (in.offset > INT64_MAX / ibsz || size < in.offset * ibsz) { + out_size = out.offset * obsz; } else { - out_size = size - in.offset * in.bsz + out.offset * out.bsz; + out_size = size - in.offset * ibsz + out.offset * obsz; } out_filename = out.filename; @@ -4083,6 +4200,15 @@ static int img_dd(int argc, char **argv) out_filename = qemu_opt_get(qopts, "filename"); } + flags = BDRV_O_RDWR; + + if (out.flags & C_DSYNC || out.flags & C_IOFLAG_SYNC) { + writethrough = true; + } + if (out.flags & C_DIRECT) { + flags |= BDRV_O_NOCACHE; + } + ret = access(out_filename, F_OK); /* Check if file exists */ if (ret == -1) { @@ -4127,8 +4253,10 @@ static int img_dd(int argc, char **argv) ret = -1; goto out; } - blk2 = img_open(image_opts, out.filename, out_fmt, BDRV_O_RDWR, - false, false); + + blk2 = img_open(image_opts, out.filename, out_fmt, flags, + writethrough, false); + if (!blk2) { ret = -1; goto out; @@ -4136,8 +4264,8 @@ static int img_dd(int argc, char **argv) } else { int64_t blk2sz = 0; - blk2 = img_open(image_opts, out.filename, out_fmt, BDRV_O_RDWR, - false, false); + blk2 = img_open(image_opts, out.filename, out_fmt, flags, + writethrough, false); if (!blk2) { ret = -1; goto out; @@ -4159,29 +4287,29 @@ static int img_dd(int argc, char **argv) goto out; } - if (in.offset > INT64_MAX / in.bsz || size < in.offset * in.bsz) { - if (blk2sz < out.offset * out.bsz) { - blk_truncate(blk2, out.offset * out.bsz); + if (in.offset > INT64_MAX / ibsz || size < in.offset * ibsz) { + if (blk2sz < out.offset * obsz) { + blk_truncate(blk2, out.offset * obsz); } } else if (blk2sz < out_size) { blk_truncate(blk2, out_size); } } - if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || - size < in.offset * in.bsz)) { + if (dd.flags & C_SKIP && (in.offset > INT64_MAX / ibsz || + size < in.offset * ibsz)) { /* We give a warning if the skip option is bigger than the input * size and create an empty output disk image (i.e. like dd(1)). */ error_report("%s: cannot skip to specified offset", in.filename); in_pos = size; } else { - in_pos = in.offset * in.bsz; + in_pos = in.offset * ibsz; } in.buf = g_new(uint8_t, in.bsz); - for (out_pos = out.offset * out.bsz; in_pos < size; block_count++) { + for (out_pos = out.offset * obsz; in_pos < size; block_count++) { int in_ret, out_ret; if (in_pos + in.bsz > size) { diff --git a/qemu-img.texi b/qemu-img.texi index 95f603b..c663cf4 100644 --- a/qemu-img.texi +++ b/qemu-img.texi @@ -146,18 +146,42 @@ Parameters to dd subcommand: @item bs=@var{block_size} defines the block size @item count=@var{blocks} -sets the number of input blocks to copy +sets the number of input blocks to copy. In case 'iflags=count_bytes' is +specified, 'blocks' is interpreted as a byte count instead of a block count. @item if=@var{input} sets the input file @item of=@var{output} sets the output file. dd truncates the output file to zero if 'conv=notrunc' is not specified. @item skip=@var{blocks} -sets the number of input blocks to skip +sets the number of input blocks to skip. In case 'iflags=skip_bytes' is +specified, 'blocks' is interpreted as a byte count instead of a block count. @item seek=@var{blocks} -sets the number of output blocks to skip +sets the number of output blocks to skip. In case 'oflags=seek_bytes' is +specified, 'blocks' is interpreted as a byte count instead of a block count. @item conv=notrunc makes dd not truncate output file to zero +@item iflag=@var{flags} +defines the flags used to read the input file. The flag list is seprated using +commas. +@item oflag=@var{flags} +defines the flags used to write the output file. The flag list is seprated +using commas. + +The flag list: +@item direct +direct I/O for data. +@item dsync +synchronised I/O for data. +@item sync +synchronised I/O for data. +@item count_bytes +interpret 'count=blocks' as a byte count. Only iflag. +@item skip_bytes +interpret 'skip=blocks' as a byte count. Only iflag. +@item seek_bytes +interpret 'seek=blocks' as a byte count. Only oflag. + @end table Command description: @@ -331,7 +355,7 @@ skipped. This is useful for formats such as @code{rbd} if the target volume has already been created with site specific options that cannot be supplied through qemu-img. -@item dd [-f @var{fmt}] [-O @var{output_fmt}] [bs=@var{block_size}] [count=@var{blocks}] [skip=@var{blocks}] [seek=@var{blocks}] [conv=notrunc] if=@var{input} of=@var{output} +@item dd [-f @var{fmt}] [-O @var{output_fmt}] [bs=@var{block_size}] [count=@var{blocks}] [skip=@var{blocks}] [seek=@var{blocks}] [conv=notrunc] [iflag=@var{flags}] [oflag=@var{flags}] if=@var{input} of=@var{output} Dd copies from @var{input} file to @var{output} file converting it from @var{fmt} format to @var{output_fmt} format. diff --git a/tests/qemu-iotests/163 b/tests/qemu-iotests/163 new file mode 100755 index 0000000..994b124 --- /dev/null +++ b/tests/qemu-iotests/163 @@ -0,0 +1,103 @@ +#! /bin/bash +# +# qemu-img dd test for the iflag option +# +# Copyright (C) 2016 Reda Sallahi +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +owner=fullmanet@gmail.com + +seq="$(basename $0)" +echo "QA output created by $seq" + +here="$PWD" + +status=1 + +_cleanup() +{ + _cleanup_test_img + rm -f "$TEST_IMG.out" "$TEST_IMG.out.dd" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +. ./common.rc +. ./common.filter +. ./common.pattern + +_supported_fmt raw +_supported_proto file +_supported_os Linux + +TEST_SKIP_BLOCKS="1 9 37 90K 12M" + +for skip in $TEST_SKIP_BLOCKS; do + echo + echo "== Creating image ==" + + size=1M + _make_test_img $size + _check_test_img + + $QEMU_IO -c "write -P 0xa 142k 512k" "$TEST_IMG" | _filter_qemu_io + + echo + echo "== Converting the image with dd with skip=$skip iflag=skip_bytes ==" + + $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" skip="$skip" \ + iflag=skip_bytes conv=notrunc -O "$IMGFMT" 2> /dev/null + TEST_IMG="$TEST_IMG.out" _check_test_img + dd if="$TEST_IMG" of="$TEST_IMG.out.dd" skip="$skip" iflag=skip_bytes \ + conv=notrunc status=none + + echo + echo "== Compare the images with qemu-img compare ==" + + $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out" +done + +TEST_COUNT_BLOCKS="2 19 75 24K 12M 143G" + +for count in $TEST_COUNT_BLOCKS; do + echo + echo "== Creating image ==" + + size=1M + _make_test_img $size + _check_test_img + + $QEMU_IO -c "write -P 0xa 342k 512k" "$TEST_IMG" | _filter_qemu_io + + echo + echo "== Converting the image with dd with count=$count" \ + "iflag=count_bytes ==" + + $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" count="$skip" \ + iflag=count_bytes conv=notrunc -O "$IMGFMT" 2> /dev/null + TEST_IMG="$TEST_IMG.out" _check_test_img + dd if="$TEST_IMG" of="$TEST_IMG.out.dd" count="$skip" iflag=count_bytes \ + conv=notrunc status=none + + echo + echo "== Compare the images with qemu-img compare ==" + + $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out" +done + +echo +echo "*** done" +rm -f "$seq.full" +status=0 diff --git a/tests/qemu-iotests/163.out b/tests/qemu-iotests/163.out new file mode 100644 index 0000000..e1034cd --- /dev/null +++ b/tests/qemu-iotests/163.out @@ -0,0 +1,135 @@ +QA output created by 163 + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 145408 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with skip=1 iflag=skip_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 145408 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with skip=9 iflag=skip_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 145408 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with skip=37 iflag=skip_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 145408 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with skip=90K iflag=skip_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 145408 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with skip=12M iflag=skip_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=2 iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=19 iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=75 iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=24K iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=12M iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 350208 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with count=143G iflag=count_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +*** done diff --git a/tests/qemu-iotests/164 b/tests/qemu-iotests/164 new file mode 100755 index 0000000..4cc69c2 --- /dev/null +++ b/tests/qemu-iotests/164 @@ -0,0 +1,100 @@ +#! /bin/bash +# +# qemu-img dd test for the oflag option +# +# Copyright (C) 2016 Reda Sallahi +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +owner=fullmanet@gmail.com + +seq="$(basename $0)" +echo "QA output created by $seq" + +here="$PWD" +status=1 + +_cleanup() +{ + _cleanup_test_img + rm -f "$TEST_IMG.out" "$TEST_IMG.out.dd" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +. ./common.rc +. ./common.filter +. ./common.pattern + +_supported_fmt raw +_supported_proto file +_supported_os Linux + +TEST_SEEK_BLOCKS="1 3 15 10K 20M" + +for seek in $TEST_SEEK_BLOCKS; do + echo + echo "== Creating image ==" + + size=1M + _make_test_img $size + _check_test_img + + $QEMU_IO -c "write -P 0xa 235k 512k" "$TEST_IMG" | _filter_qemu_io + + echo + echo "== Converting the image with dd with seek=$seek oflag=seek_bytes ==" + + $QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" seek="$seek" \ + oflag=seek_bytes conv=notrunc -O "$IMGFMT" 2> /dev/null + TEST_IMG="$TEST_IMG.out" _check_test_img + dd if="$TEST_IMG" of="$TEST_IMG.out.dd" seek="$seek" \ + oflag=seek_bytes status=none + + echo + echo "== Compare the images with qemu-img compare ==" + + $QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out" +done + +echo +echo "== Creating image ==" + +size=1M +_make_test_img $size +_check_test_img +seek=13K + +$QEMU_IO -c "write -P 0xa 235k 512k" "$TEST_IMG" | _filter_qemu_io + +echo +echo "== Converting the image with dd with seek=$seek" \ + "oflag=seek_bytes,direct ==" + +$QEMU_IMG dd if="$TEST_IMG" of="$TEST_IMG.out" seek="$seek" \ + oflag=seek_bytes conv=notrunc -O "$IMGFMT" 2> /dev/null +TEST_IMG="$TEST_IMG.out" _check_test_img +dd if="$TEST_IMG" of="$TEST_IMG.out.dd" seek="$seek" \ + oflag=seek_bytes,direct conv=notrunc status=none + +echo +echo "== Compare the images with qemu-img compare ==" + +$QEMU_IMG compare "$TEST_IMG.out.dd" "$TEST_IMG.out" + + +echo +echo "*** done" +rm -f "$seq.full" +status=0 diff --git a/tests/qemu-iotests/164.out b/tests/qemu-iotests/164.out new file mode 100644 index 0000000..3951a58 --- /dev/null +++ b/tests/qemu-iotests/164.out @@ -0,0 +1,75 @@ +QA output created by 164 + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=1 oflag=seek_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=3 oflag=seek_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=15 oflag=seek_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=10K oflag=seek_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=20M oflag=seek_bytes == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +== Creating image == +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +No errors were found on the image. +wrote 524288/524288 bytes at offset 240640 +512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +== Converting the image with dd with seek=13K oflag=seek_bytes,direct == +No errors were found on the image. + +== Compare the images with qemu-img compare == +Images are identical. + +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 28833ee..5ba1372 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -162,3 +162,5 @@ 160 rw auto quick 161 rw auto quick 162 auto quick +163 rw auto quick +164 rw auto quick -- 2.9.3