Mykola Ivanets
2020-Feb-11 21:51 UTC
[Libguestfs] [PATCH 0/1] tools: add '--blocksize' option for C-based tools
From: Nikolay Ivanets <stenavin@gmail.com> This patch depends on changes in 'common' sub-module posted here: https://www.redhat.com/archives/libguestfs/2020-February/msg00096.html Nikolay Ivanets (1): tools: add '--blocksize' option for C-based tools align/scan.c | 8 ++++++++ align/virt-alignment-scan.pod | 12 ++++++++++++ cat/cat.c | 8 ++++++++ cat/filesystems.c | 8 ++++++++ cat/log.c | 8 ++++++++ cat/ls.c | 8 ++++++++ cat/tail.c | 8 ++++++++ cat/virt-cat.pod | 12 ++++++++++++ cat/virt-filesystems.pod | 12 ++++++++++++ cat/virt-log.pod | 12 ++++++++++++ cat/virt-ls.pod | 12 ++++++++++++ cat/virt-tail.pod | 12 ++++++++++++ df/main.c | 8 ++++++++ df/virt-df.pod | 12 ++++++++++++ diff/diff.c | 8 ++++++++ diff/virt-diff.pod | 12 ++++++++++++ edit/edit.c | 8 ++++++++ edit/virt-edit.pod | 12 ++++++++++++ fish/fish.c | 8 ++++++++ fish/guestfish.pod | 11 +++++++++++ format/format.c | 8 ++++++++ format/virt-format.pod | 12 ++++++++++++ fuse/guestmount.c | 8 ++++++++ fuse/guestmount.pod | 12 ++++++++++++ inspector/inspector.c | 8 ++++++++ inspector/virt-inspector.pod | 12 ++++++++++++ rescue/rescue.c | 8 ++++++++ rescue/virt-rescue.pod | 12 ++++++++++++ 28 files changed, 279 insertions(+) -- 2.17.2
Mykola Ivanets
2020-Feb-11 21:51 UTC
[Libguestfs] [PATCH 1/1] tools: add '--blocksize' option for C-based tools
From: Nikolay Ivanets <stenavin@gmail.com>
This patch adds '--blocksize' command line option for guestfish and
other C-based tools. This option allows specifying disk sector size.
---
align/scan.c | 8 ++++++++
align/virt-alignment-scan.pod | 12 ++++++++++++
cat/cat.c | 8 ++++++++
cat/filesystems.c | 8 ++++++++
cat/log.c | 8 ++++++++
cat/ls.c | 8 ++++++++
cat/tail.c | 8 ++++++++
cat/virt-cat.pod | 12 ++++++++++++
cat/virt-filesystems.pod | 12 ++++++++++++
cat/virt-log.pod | 12 ++++++++++++
cat/virt-ls.pod | 12 ++++++++++++
cat/virt-tail.pod | 12 ++++++++++++
df/main.c | 8 ++++++++
df/virt-df.pod | 12 ++++++++++++
diff/diff.c | 8 ++++++++
diff/virt-diff.pod | 12 ++++++++++++
edit/edit.c | 8 ++++++++
edit/virt-edit.pod | 12 ++++++++++++
fish/fish.c | 8 ++++++++
fish/guestfish.pod | 11 +++++++++++
format/format.c | 8 ++++++++
format/virt-format.pod | 12 ++++++++++++
fuse/guestmount.c | 8 ++++++++
fuse/guestmount.pod | 12 ++++++++++++
inspector/inspector.c | 8 ++++++++
inspector/virt-inspector.pod | 12 ++++++++++++
rescue/rescue.c | 8 ++++++++
rescue/virt-rescue.pod | 12 ++++++++++++
28 files changed, 279 insertions(+)
diff --git a/align/scan.c b/align/scan.c
index b9f29868c..5a456d3d6 100644
--- a/align/scan.c
+++ b/align/scan.c
@@ -90,6 +90,8 @@ usage (int status)
" -c|--connect uri Specify libvirt URI for -d
option\n"
" -d|--domain guest Add disks from libvirt guest\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" -P nr_threads Use at most nr_threads\n"
" -q|--quiet No output, just exit code\n"
@@ -119,6 +121,7 @@ main (int argc, char *argv[])
{ "connect", 1, 0, 'c' },
{ "domain", 1, 0, 'd' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "long-options", 0, 0, 0 },
{ "quiet", 0, 0, 'q' },
@@ -131,6 +134,8 @@ main (int argc, char *argv[])
struct drv *drvs = NULL;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
int exit_code;
@@ -153,6 +158,8 @@ main (int argc, char *argv[])
display_short_options (options);
else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "uuid")) {
uuid = 1;
} else
@@ -215,6 +222,7 @@ main (int argc, char *argv[])
usage (EXIT_FAILURE);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* virt-alignment-scan has two modes. If the user didn't specify
* any drives, then we do the scan on every libvirt guest. That's
diff --git a/align/virt-alignment-scan.pod b/align/virt-alignment-scan.pod
index 19953546e..21b5339e0 100644
--- a/align/virt-alignment-scan.pod
+++ b/align/virt-alignment-scan.pod
@@ -162,6 +162,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-P> nr_threads
Since libguestfs 1.22, virt-alignment-scan is multithreaded and
diff --git a/cat/cat.c b/cat/cat.c
index 4f0d7035e..eb070877a 100644
--- a/cat/cat.c
+++ b/cat/cat.c
@@ -70,6 +70,8 @@ usage (int status)
" -d|--domain guest Add disks from libvirt guest\n"
" --echo-keys Don't turn off echo for
passphrases\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --key selector Specify a LUKS key\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -101,6 +103,7 @@ main (int argc, char *argv[])
{ "domain", 1, 0, 'd' },
{ "echo-keys", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "key", 1, 0, 0 },
{ "keys-from-stdin", 0, 0, 0 },
@@ -118,6 +121,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int r;
int option_index;
@@ -143,6 +148,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "key")) {
OPTION_key;
} else
@@ -232,6 +239,7 @@ main (int argc, char *argv[])
usage (EXIT_FAILURE);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* User must have specified some drives. */
if (drvs == NULL) {
diff --git a/cat/filesystems.c b/cat/filesystems.c
index 74e994169..447bccc6e 100644
--- a/cat/filesystems.c
+++ b/cat/filesystems.c
@@ -111,6 +111,8 @@ usage (int status)
" --extra Display swap and data
filesystems\n"
" --filesystems Display mountable
filesystems\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" -h|--human-readable Human-readable sizes in --long
output\n"
" --help Display brief help\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -156,6 +158,7 @@ main (int argc, char *argv[])
{ "extra", 0, 0, 0 },
{ "filesystems", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "human-readable", 0, 0, 'h' },
{ "keys-from-stdin", 0, 0, 0 },
@@ -183,6 +186,8 @@ main (int argc, char *argv[])
struct drv *drvs = NULL;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
int no_title = 0; /* --no-title */
@@ -210,6 +215,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "all")) {
output = OUTPUT_ALL;
} else if (STREQ (long_options[option_index].name, "blkdevs")
||
@@ -306,6 +313,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* -h and --csv doesn't make sense. Spreadsheets will corrupt these
* fields. (RHBZ#600977).
diff --git a/cat/log.c b/cat/log.c
index f8a5c85f2..50cd50eb9 100644
--- a/cat/log.c
+++ b/cat/log.c
@@ -80,6 +80,8 @@ usage (int status)
" -d|--domain guest Add disks from libvirt guest\n"
" --echo-keys Don't turn off echo for
passphrases\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --key selector Specify a LUKS key\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -109,6 +111,7 @@ main (int argc, char *argv[])
{ "domain", 1, 0, 'd' },
{ "echo-keys", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "key", 1, 0, 0 },
{ "keys-from-stdin", 0, 0, 0 },
@@ -121,6 +124,8 @@ main (int argc, char *argv[])
struct drv *drvs = NULL;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int r;
int option_index;
@@ -146,6 +151,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "key")) {
OPTION_key;
} else
@@ -204,6 +211,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* User must have specified some drives. */
if (drvs == NULL) {
diff --git a/cat/ls.c b/cat/ls.c
index 055939a80..b56f3a46b 100644
--- a/cat/ls.c
+++ b/cat/ls.c
@@ -111,6 +111,8 @@ usage (int status)
" --echo-keys Don't turn off echo for
passphrases\n"
" --extra-stats Display extra stats\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" -h|--human-readable Human-readable sizes in
output\n"
" --key selector Specify a LUKS key\n"
@@ -158,6 +160,7 @@ main (int argc, char *argv[])
{ "extra-stat", 0, 0, 0 },
{ "extra-stats", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "human-readable", 0, 0, 'h' },
{ "key", 1, 0, 0 },
@@ -185,6 +188,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
#define MODE_LS_L 1
@@ -213,6 +218,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "checksum")
||
STREQ (long_options[option_index].name,
"checksums")) {
if (!optarg || STREQ (optarg, ""))
@@ -338,6 +345,7 @@ main (int argc, char *argv[])
assert (live == 0);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* Many flags only apply to -lR mode. */
if (mode != MODE_LS_LR &&
diff --git a/cat/tail.c b/cat/tail.c
index 9e3af7c7d..c12b32631 100644
--- a/cat/tail.c
+++ b/cat/tail.c
@@ -78,6 +78,8 @@ usage (int status)
" --echo-keys Don't turn off echo for
passphrases\n"
" -f|--follow Ignored for compatibility with
tail\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --key selector Specify a LUKS key\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -110,6 +112,7 @@ main (int argc, char *argv[])
{ "echo-keys", 0, 0, 0 },
{ "follow", 0, 0, 'f' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "key", 1, 0, 0 },
{ "keys-from-stdin", 0, 0, 0 },
@@ -126,6 +129,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int r;
int option_index;
@@ -151,6 +156,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "key")) {
OPTION_key;
} else
@@ -217,6 +224,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* User must have specified some drives. */
if (drvs == NULL) {
diff --git a/cat/virt-cat.pod b/cat/virt-cat.pod
index 0c4ce4b77..48556f380 100644
--- a/cat/virt-cat.pod
+++ b/cat/virt-cat.pod
@@ -121,6 +121,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
__INCLUDE:key-option.pod__
=item B<--keys-from-stdin>
diff --git a/cat/virt-filesystems.pod b/cat/virt-filesystems.pod
index a3a0fb29a..8183754d7 100644
--- a/cat/virt-filesystems.pod
+++ b/cat/virt-filesystems.pod
@@ -195,6 +195,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-h>
=item B<--human-readable>
diff --git a/cat/virt-log.pod b/cat/virt-log.pod
index a6b37662e..042f93a84 100644
--- a/cat/virt-log.pod
+++ b/cat/virt-log.pod
@@ -105,6 +105,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
__INCLUDE:key-option.pod__
=item B<--keys-from-stdin>
diff --git a/cat/virt-ls.pod b/cat/virt-ls.pod
index 53141b2c6..cae35c7b1 100644
--- a/cat/virt-ls.pod
+++ b/cat/virt-ls.pod
@@ -343,6 +343,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-h>
=item B<--human-readable>
diff --git a/cat/virt-tail.pod b/cat/virt-tail.pod
index 9f72ce3f7..3e41631a9 100644
--- a/cat/virt-tail.pod
+++ b/cat/virt-tail.pod
@@ -123,6 +123,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
__INCLUDE:key-option.pod__
=item B<--keys-from-stdin>
diff --git a/df/main.c b/df/main.c
index bbb2ddb61..fba2d57d1 100644
--- a/df/main.c
+++ b/df/main.c
@@ -83,6 +83,8 @@ usage (int status)
" --csv Output as Comma-Separated
Values\n"
" -d|--domain guest Add disks from libvirt guest\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" -h|--human-readable Print sizes in human-readable
format\n"
" --help Display brief help\n"
" -i|--inodes Display inodes\n"
@@ -115,6 +117,7 @@ main (int argc, char *argv[])
{ "csv", 0, 0, 0 },
{ "domain", 1, 0, 'd' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "human-readable", 0, 0, 'h' },
{ "inodes", 0, 0, 'i' },
@@ -130,6 +133,8 @@ main (int argc, char *argv[])
struct drv *drv;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
size_t max_threads = 0;
@@ -151,6 +156,8 @@ main (int argc, char *argv[])
display_short_options (options);
else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "csv")) {
csv = 1;
} else if (STREQ (long_options[option_index].name,
"one-per-guest")) {
@@ -251,6 +258,7 @@ main (int argc, char *argv[])
usage (EXIT_FAILURE);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* -h and --csv doesn't make sense. Spreadsheets will corrupt these
* fields. (RHBZ#600977).
diff --git a/df/virt-df.pod b/df/virt-df.pod
index de6e6b4e5..a823e937d 100644
--- a/df/virt-df.pod
+++ b/df/virt-df.pod
@@ -140,6 +140,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-h>
=item B<--human-readable>
diff --git a/diff/diff.c b/diff/diff.c
index c04b5f185..f7ab93726 100644
--- a/diff/diff.c
+++ b/diff/diff.c
@@ -126,6 +126,8 @@ usage (int status)
" --echo-keys Don't turn off echo for
passphrases\n"
" --extra-stats Display extra stats\n"
" --format[=raw|..] Force disk format for -a or -A
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
or -A option\n"
" --help Display brief help\n"
" -h|--human-readable Human-readable sizes in
output\n"
" --key selector Specify a LUKS key\n"
@@ -178,6 +180,7 @@ main (int argc, char *argv[])
{ "extra-stat", 0, 0, 0 },
{ "extra-stats", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "human-readable", 0, 0, 'h' },
{ "long-options", 0, 0, 0 },
@@ -201,6 +204,8 @@ main (int argc, char *argv[])
struct drv *drvs2 = NULL; /* Second guest. */
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
struct tree *tree1, *tree2;
@@ -232,6 +237,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "all")) {
enable_extra_stats = enable_times = enable_uids = enable_xattrs = 1;
} else if (STREQ (long_options[option_index].name, "atime")) {
@@ -366,6 +373,7 @@ main (int argc, char *argv[])
assert (live == 0);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
unsigned errors = 0;
diff --git a/diff/virt-diff.pod b/diff/virt-diff.pod
index 0500598bd..c7f2ebcef 100644
--- a/diff/virt-diff.pod
+++ b/diff/virt-diff.pod
@@ -160,6 +160,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a>/I<-A>
options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-h>
=item B<--human-readable>
diff --git a/edit/edit.c b/edit/edit.c
index 4b9f1bed1..635995e0d 100644
--- a/edit/edit.c
+++ b/edit/edit.c
@@ -81,6 +81,8 @@ usage (int status)
" --echo-keys Don't turn off echo for
passphrases\n"
" -e|--edit|--expr expr Non-interactive editing using Perl
expr\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --key selector Specify a LUKS key\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -115,6 +117,7 @@ main (int argc, char *argv[])
{ "edit", 1, 0, 'e' },
{ "expr", 1, 0, 'e' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "key", 1, 0, 0 },
{ "keys-from-stdin", 0, 0, 0 },
@@ -132,6 +135,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
struct key_store *ks = NULL;
@@ -156,6 +161,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "key")) {
OPTION_key;
} else
@@ -257,6 +264,7 @@ main (int argc, char *argv[])
usage (EXIT_FAILURE);
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* User must have specified some drives. */
if (drvs == NULL) {
diff --git a/edit/virt-edit.pod b/edit/virt-edit.pod
index 4909a7df1..3be756638 100644
--- a/edit/virt-edit.pod
+++ b/edit/virt-edit.pod
@@ -153,6 +153,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
__INCLUDE:key-option.pod__
=item B<--keys-from-stdin>
diff --git a/fish/fish.c b/fish/fish.c
index 2070e370e..419e989df 100644
--- a/fish/fish.c
+++ b/fish/fish.c
@@ -130,6 +130,8 @@ usage (int status)
" --echo-keys Don’t turn off echo for
passphrases\n"
" -f|--file file Read commands from file\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" -i|--inspector Automatically mount
filesystems\n"
" --key selector Specify a LUKS key\n"
@@ -197,6 +199,7 @@ main (int argc, char *argv[])
{ "echo-keys", 0, 0, 0 },
{ "file", 1, 0, 'f' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "inspector", 0, 0, 'i' },
{ "key", 1, 0, 0 },
@@ -228,6 +231,8 @@ main (int argc, char *argv[])
char *p, *file = NULL;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
struct sigaction sa;
@@ -285,6 +290,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "csh")) {
remote_control_csh = 1;
} else if (STREQ (long_options[option_index].name, "live")) {
@@ -468,6 +475,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* If we've got drives to add, add them now. */
add_drives (drvs);
diff --git a/fish/guestfish.pod b/fish/guestfish.pod
index 1904b640c..2bc951f0f 100644
--- a/fish/guestfish.pod
+++ b/fish/guestfish.pod
@@ -249,6 +249,17 @@ this option to specify the disk format. This avoids a
possible
security problem with malicious guests (CVE-2010-3851). See also
L</add>.
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also L</add>.
+
=item B<-i>
=item B<--inspector>
diff --git a/format/format.c b/format/format.c
index 5453fc7e1..6176734cd 100644
--- a/format/format.c
+++ b/format/format.c
@@ -82,6 +82,8 @@ usage (int status)
" -a|--add image Add image\n"
" --filesystem=.. Create empty filesystem\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --label=.. Set filesystem label\n"
" --lvm=.. Create Linux LVM2 logical
volume\n"
@@ -114,6 +116,7 @@ main (int argc, char *argv[])
{ "add", 1, 0, 'a' },
{ "filesystem", 1, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "label", 1, 0, 0 },
{ "long-options", 0, 0, 0 },
@@ -128,6 +131,8 @@ main (int argc, char *argv[])
struct drv *drvs = NULL;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
int retry, retries;
@@ -148,6 +153,8 @@ main (int argc, char *argv[])
display_short_options (options);
else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name,
"filesystem")) {
if (STREQ (optarg, "none"))
filesystem = NULL;
@@ -233,6 +240,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* The user didn't specify any drives to format. */
if (drvs == NULL) {
diff --git a/format/virt-format.pod b/format/virt-format.pod
index 11b4409a7..5f491eee4 100644
--- a/format/virt-format.pod
+++ b/format/virt-format.pod
@@ -112,6 +112,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<--label=>LABEL
Set the filesystem label.
diff --git a/fuse/guestmount.c b/fuse/guestmount.c
index 6c35bcca7..6588d0d48 100644
--- a/fuse/guestmount.c
+++ b/fuse/guestmount.c
@@ -116,6 +116,8 @@ usage (int status)
" --echo-keys Don't turn off echo for
passphrases\n"
" --fd=FD Write to pipe FD when mountpoint is
ready\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --fuse-help Display extra FUSE options\n"
" -i|--inspector Automatically mount
filesystems\n"
" --help Display help message and
exit\n"
@@ -163,6 +165,7 @@ main (int argc, char *argv[])
{ "echo-keys", 0, 0, 0 },
{ "fd", 1, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "fuse-help", 0, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "inspector", 0, 0, 'i' },
@@ -191,6 +194,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c, r;
int option_index;
struct sigaction sa;
@@ -235,6 +240,8 @@ main (int argc, char *argv[])
/* nothing */
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name,
"keys-from-stdin")) {
keys_from_stdin = 1;
} else if (STREQ (long_options[option_index].name,
"echo-keys")) {
@@ -316,6 +323,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* Check we have the right options. */
if (!live) {
diff --git a/fuse/guestmount.pod b/fuse/guestmount.pod
index d4e12e641..664dcc037 100644
--- a/fuse/guestmount.pod
+++ b/fuse/guestmount.pod
@@ -230,6 +230,18 @@ this option to specify the disk format. This avoids a
possible
security problem with malicious guests (CVE-2010-3851). See also
L<guestfs(3)/guestfs_add_drive_opts>.
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<--fuse-help>
Display help on special FUSE options (see I<-o> below).
diff --git a/inspector/inspector.c b/inspector/inspector.c
index fa8e721ff..c6f52b90f 100644
--- a/inspector/inspector.c
+++ b/inspector/inspector.c
@@ -96,6 +96,8 @@ usage (int status)
" -d|--domain guest Add disks from libvirt guest\n"
" --echo-keys Don't turn off echo for
passphrases\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" --key selector Specify a LUKS key\n"
" --keys-from-stdin Read passphrases from stdin\n"
@@ -128,6 +130,7 @@ main (int argc, char *argv[])
{ "domain", 1, 0, 'd' },
{ "echo-keys", 0, 0, 0 },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "key", 1, 0, 0 },
{ "keys-from-stdin", 0, 0, 0 },
@@ -144,6 +147,8 @@ main (int argc, char *argv[])
struct drv *drv;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
struct key_store *ks = NULL;
@@ -168,6 +173,8 @@ main (int argc, char *argv[])
echo_keys = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "xpath")) {
xpath = optarg;
} else if (STREQ (long_options[option_index].name,
"no-applications")) {
@@ -262,6 +269,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* XPath is modal: no drives should be specified. There must be
* one extra parameter on the command line.
diff --git a/inspector/virt-inspector.pod b/inspector/virt-inspector.pod
index 24fbf2e08..48545970c 100644
--- a/inspector/virt-inspector.pod
+++ b/inspector/virt-inspector.pod
@@ -114,6 +114,18 @@ parameter is ignored.
If working with untrusted raw-format guest disk images, you should
ensure the format is always specified.
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
__INCLUDE:key-option.pod__
=item B<--keys-from-stdin>
diff --git a/rescue/rescue.c b/rescue/rescue.c
index 419242381..3865450fa 100644
--- a/rescue/rescue.c
+++ b/rescue/rescue.c
@@ -92,6 +92,8 @@ usage (int status)
" -d|--domain guest Add disks from libvirt guest\n"
" -e ^x|none Set or disable escape key (default
^])\n"
" --format[=raw|..] Force disk format for -a
option\n"
+ " --blocksize[=512|4096]\n"
+ " Set sector size of the disk for -a
option\n"
" --help Display brief help\n"
" -i|--inspector Automatically mount
filesystems\n"
" -m|--mount dev[:mnt[:opts[:fstype]] Mount dev on mnt (if
omitted, /)\n"
@@ -130,6 +132,7 @@ main (int argc, char *argv[])
{ "connect", 1, 0, 'c' },
{ "domain", 1, 0, 'd' },
{ "format", 2, 0, 0 },
+ { "blocksize", 2, 0, 0 },
{ "help", 0, 0, HELP_OPTION },
{ "inspector", 0, 0, 'i' },
{ "long-options", 0, 0, 0 },
@@ -154,6 +157,8 @@ main (int argc, char *argv[])
char *p;
const char *format = NULL;
bool format_consumed = true;
+ int blocksize = 0;
+ bool blocksize_consumed = true;
int c;
int option_index;
int network = 0;
@@ -187,6 +192,8 @@ main (int argc, char *argv[])
network = 1;
} else if (STREQ (long_options[option_index].name, "format")) {
OPTION_format;
+ } else if (STREQ (long_options[option_index].name,
"blocksize")) {
+ OPTION_blocksize;
} else if (STREQ (long_options[option_index].name, "smp")) {
if (sscanf (optarg, "%d", &smp) != 1)
error (EXIT_FAILURE, 0,
@@ -334,6 +341,7 @@ main (int argc, char *argv[])
}
CHECK_OPTION_format_consumed;
+ CHECK_OPTION_blocksize_consumed;
/* User must have specified some drives. */
if (drvs == NULL) {
diff --git a/rescue/virt-rescue.pod b/rescue/virt-rescue.pod
index c7be8b8af..a4896f432 100644
--- a/rescue/virt-rescue.pod
+++ b/rescue/virt-rescue.pod
@@ -176,6 +176,18 @@ If you have untrusted raw-format guest disk images, you
should use
this option to specify the disk format. This avoids a possible
security problem with malicious guests (CVE-2010-3851).
+=item B<--blocksize=512>
+
+=item B<--blocksize=4096>
+
+=item B<--blocksize>
+
+This parameter sets the sector size of the disk image. Similar to
+I<--format> option it affects all subsequent I<-a> options. Using
+I<--blocksize> with no argument switches disk sector size to the
+default value which usually 512 bytes. See also
+L<guestfs(3)/guestfs_add_drive_opts>.
+
=item B<-i>
=item B<--inspector>
--
2.17.2
Richard W.M. Jones
2020-Feb-13 09:43 UTC
Re: [Libguestfs] [PATCH 1/1] tools: add '--blocksize' option for C-based tools
On Tue, Feb 11, 2020 at 11:51:17PM +0200, Mykola Ivanets wrote:> diff --git a/align/scan.c b/align/scan.c > index b9f29868c..5a456d3d6 100644 > --- a/align/scan.c > +++ b/align/scan.c > @@ -90,6 +90,8 @@ usage (int status) > " -c|--connect uri Specify libvirt URI for -d option\n" > " -d|--domain guest Add disks from libvirt guest\n" > " --format[=raw|..] Force disk format for -a option\n" > + " --blocksize[=512|4096]\n" > + " Set sector size of the disk for -a option\n" > " --help Display brief help\n" > " -P nr_threads Use at most nr_threads\n" > " -q|--quiet No output, just exit code\n"These options need to be kept in alphabetical order.> @@ -119,6 +121,7 @@ main (int argc, char *argv[]) > { "connect", 1, 0, 'c' }, > { "domain", 1, 0, 'd' }, > { "format", 2, 0, 0 }, > + { "blocksize", 2, 0, 0 }, > { "help", 0, 0, HELP_OPTION }, > { "long-options", 0, 0, 0 }, > { "quiet", 0, 0, 'q' },And here.> diff --git a/align/virt-alignment-scan.pod b/align/virt-alignment-scan.pod > index 19953546e..21b5339e0 100644 > --- a/align/virt-alignment-scan.pod > +++ b/align/virt-alignment-scan.pod > @@ -162,6 +162,18 @@ If you have untrusted raw-format guest disk images, you should use > this option to specify the disk format. This avoids a possible > security problem with malicious guests (CVE-2010-3851). > > +=item B<--blocksize=512> > + > +=item B<--blocksize=4096> > + > +=item B<--blocksize> > + > +This parameter sets the sector size of the disk image. Similar to > +I<--format> option it affects all subsequent I<-a> options. Using > +I<--blocksize> with no argument switches disk sector size to the > +default value which usually 512 bytes. See also > +L<guestfs(3)/guestfs_add_drive_opts>. > + > =item B<-P> nr_threadsAnd here. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html
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