From 9414deeb6210c5f2c5219c6e99eb329b4bb1be26 Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" Date: Thu, 1 Jan 1970 00:00:00 +0000 Subject: [PATCH 1/1] Outline manual pages (copied from virt-df). --- MANIFEST | 7 +- Makefile.in | 26 +++++- virt-dmesg.1 | 1 + virt-mem.1 | 294 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ virt-mem.pod | 188 ++++++++++++++++++++++++++++++++++++++ virt-mem.txt | 151 ++++++++++++++++++++++++++++++ virt-uname.1 | 1 + 7 files changed, 665 insertions(+), 3 deletions(-) create mode 100644 virt-dmesg.1 create mode 100644 virt-mem.1 create mode 100644 virt-mem.pod create mode 100644 virt-mem.txt create mode 100644 virt-uname.1 diff --git a/MANIFEST b/MANIFEST index 5006cbd..2ee847c 100644 --- a/MANIFEST +++ b/MANIFEST @@ -24,4 +24,9 @@ po/virt-mem.pot README uname/.depend uname/Makefile.in -uname/virt_uname.ml \ No newline at end of file +uname/virt_uname.ml +virt-dmesg.1 +virt-mem.1 +virt-mem.pod +virt-mem.txt +virt-uname.1 \ No newline at end of file diff --git a/Makefile.in b/Makefile.in index faaf202..192b027 100644 --- a/Makefile.in +++ b/Makefile.in @@ -21,9 +21,17 @@ VERSION = @PACKAGE_VERSION@ INSTALL = @INSTALL@ -SUBDIRS = lib uname dmesg +HAVE_PERLDOC = @HAVE_PERLDOC@ -all install: +TOOLS = uname dmesg + +SUBDIRS = lib $(TOOLS) + +ifeq ($(HAVE_PERLDOC),perldoc) +TARGETS += virt-mem.1 virt-mem.txt $(TOOLS:%=virt-%.1) +endif + +all install: $(TARGETS) for d in $(SUBDIRS) po; do \ $(MAKE) -C $$d $@; \ if [ $$? -ne 0 ]; then exit 1; fi; \ @@ -52,6 +60,20 @@ distclean: clean rm -f Makefile rm -f virt-df/Makefile +# Manual page. + +ifeq ($(HAVE_PERLDOC),perldoc) +virt-mem.1: virt-mem.pod + pod2man -c "Virtualization Support" --release "$(PACKAGE)-$(VERSION)" \ + $< > $@ + +virt-mem.txt: virt-mem.pod + pod2text $< > $@ + +virt-%.1: + echo '.so man1/virt-mem.1' > $@ +endif + # Distribution. dist: diff --git a/virt-dmesg.1 b/virt-dmesg.1 new file mode 100644 index 0000000..29f29cc --- /dev/null +++ b/virt-dmesg.1 @@ -0,0 +1 @@ +.so man1/virt-mem.1 diff --git a/virt-mem.1 b/virt-mem.1 new file mode 100644 index 0000000..9f4bf59 --- /dev/null +++ b/virt-mem.1 @@ -0,0 +1,294 @@ +.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. 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Many command line options are the same as for ordinary +\&\fIdf\fR. +.PP +It uses libvirt so it is capable of showing stats across a variety of +different virtualization systems. +.SH "OPTIONS" +.IX Header "OPTIONS" +.IP "\fB\-a\fR, \fB\-\-all\fR" 4 +.IX Item "-a, --all" +Show all domains. The default is show only running (active) domains. +.IP "\fB\-c uri\fR, \fB\-\-connect uri\fR" 4 +.IX Item "-c uri, --connect uri" +Connect to libvirt \s-1URI\s0. The default is to connect to the default +libvirt \s-1URI\s0, normally Xen. +.IP "\fB\-\-csv\fR" 4 +.IX Item "--csv" +Print the results in \s-1CSV\s0 format, suitable for importing into a +spreadsheet or database. +.Sp +This option is only supported if virt-df was built with \s-1CSV\s0 support. +.IP "\fB\-\-debug\fR" 4 +.IX Item "--debug" +Emit debugging information on stderr. Please supply this if you +report a bug. +.IP "\fB\-h\fR, \fB\-\-human\-readable\fR" 4 +.IX Item "-h, --human-readable" +Display human-readable sizes (eg. \*(L"10GiB\*(R" instead of large numbers). +.IP "\fB\-i\fR, \fB\-\-inodes\fR" 4 +.IX Item "-i, --inodes" +Display inode information. +.Sp +This option only works for Unix-like filesystems. +.IP "\fB\-\-help\fR" 4 +.IX Item "--help" +Display usage summary. +.IP "\fB\-t diskimage\fR" 4 +.IX Item "-t diskimage" +Test mode. Instead of checking libvirt for domain information, this +runs virt-df directly on the disk image (or device) supplied. You may +specify the \fB\-t\fR option multiple times. +.IP "\fB\-\-version\fR" 4 +.IX Item "--version" +Display version and exit. +.SH "EXAMPLE" +.IX Header "EXAMPLE" +.Vb 5 +\& # virt-df +\& Filesystem 1K-blocks Used Available Type +\& f9x32kvm:hda1 190740 24817 165923 Linux ext2/3 +\& f9x32kvm:VolGroup/LogVol00 6568348 3401656 3166692 Linux ext2/3 +\& f9x32kvm:VolGroup/LogVol01 1015808 Linux swap +.Ve +.SH "SHORTCOMINGS" +.IX Header "SHORTCOMINGS" +virt-df spies on the guest's disk image to try to work out how much +disk space it is actually using. There are some shortcomings to this, +described here. +.PP +(1) It only understands a limited set of partition types. Assuming +that the files and partitions that we get back from libvirt / Xen +correspond to block devices in the guests, we can go some way towards +manually parsing those partitions to find out what they contain. We +can read the \s-1MBR\s0, \s-1LVM\s0, superblocks and so on. However that's a lot of +parsing work, and currently there is no library which understands a +wide range of partition schemes and filesystem types (not even +libparted which doesn't support \s-1LVM\s0 yet). The Linux kernel does +support that, but there's not really any good way to access that work. +.PP +The current implementation uses a hand-coded parser which understands +some formats (\s-1MBR\s0, \s-1LVM2\s0, ext2/3, \s-1DOS\s0 \s-1FAT\s0, Windows \s-1NTFS\s0, Linux swap and +Linux suspend partitions). +.PP +(2) The statistics you get are delayed. The real state of, for +example, an ext2 filesystem is only stored in the memory of the +guest's kernel. The ext2 superblock contains some meta-information +about blocks used and free, but this superblock is not up to date. In +fact the guest kernel may not update it even on a 'sync', not until +the filesystem is unmounted. Some operations do appear to write the +superblock, for example \fIfsync\fR\|(2) [that is my reading of the ext2/3 +source code at least]. +.SH "SECURITY" +.IX Header "SECURITY" +The current code tries hard to be secure against malicious guests, for +example guests which set up malicious disk partitions. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIdf\fR\|(1), +\&\fIvirsh\fR\|(1), +\&\fIxm\fR\|(1), +, +, +, + +.SH "AUTHORS" +.IX Header "AUTHORS" +Richard W.M. Jones +.SH "COPYRIGHT" +.IX Header "COPYRIGHT" +(C) Copyright 2007\-2008 Red Hat Inc., Richard W.M. Jones +http://libvirt.org/ +.PP +This program is free software; you can redistribute it and/or modify +it under the terms of the \s-1GNU\s0 General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. +.PP +This program is distributed in the hope that it will be useful, +but \s-1WITHOUT\s0 \s-1ANY\s0 \s-1WARRANTY\s0; without even the implied warranty of +\&\s-1MERCHANTABILITY\s0 or \s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0. See the +\&\s-1GNU\s0 General Public License for more details. +.PP +You should have received a copy of the \s-1GNU\s0 General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, \s-1MA\s0 02139, \s-1USA\s0. +.SH "REPORTING BUGS" +.IX Header "REPORTING BUGS" +Bugs can be viewed on the Red Hat Bugzilla page: +. +.PP +If you find a bug in virt\-df, please follow these steps to report it: +.IP "1. Check for existing bug reports" 4 +.IX Item "1. Check for existing bug reports" +Go to and search for similar bugs. +Someone may already have reported the same bug, and they may even +have fixed it. +.IP "2. Capture debug and error messages" 4 +.IX Item "2. Capture debug and error messages" +Run +.Sp +.Vb 1 +\& virt-df --debug > virt-df.log 2>&1 +.Ve +.Sp +and keep \fIvirt\-df.log\fR. It contains error messages which you should +submit with your bug report. +.IP "3. Get version of virt-df and version of libvirt." 4 +.IX Item "3. Get version of virt-df and version of libvirt." +Run +.Sp +.Vb 1 +\& virt-df --version +.Ve +.IP "4. Submit a bug report." 4 +.IX Item "4. Submit a bug report." +Go to and enter a new bug. +Please describe the problem in as much detail as possible. +.Sp +Remember to include the version numbers (step 3) and the debug +messages file (step 2). +.IP "5. Assign the bug to rjones @ redhat.com" 4 +.IX Item "5. Assign the bug to rjones @ redhat.com" +Assign or reassign the bug to \fBrjones @ redhat.com\fR (without the +spaces). You can also send me an email with the bug number if you +want a faster response. diff --git a/virt-mem.pod b/virt-mem.pod new file mode 100644 index 0000000..f5dc3c3 --- /dev/null +++ b/virt-mem.pod @@ -0,0 +1,188 @@ +=head1 NAME + +virt-df - 'df'-like utility for virtualization stats + +=head1 SUMMARY + +virt-df [-options] + +=head1 DESCRIPTION + +virt-df is a L-like utility for showing the actual disk usage +of guests. Many command line options are the same as for ordinary +I. + +It uses libvirt so it is capable of showing stats across a variety of +different virtualization systems. + +=head1 OPTIONS + +=over 4 + +=item B<-a>, B<--all> + +Show all domains. The default is show only running (active) domains. + +=item B<-c uri>, B<--connect uri> + +Connect to libvirt URI. The default is to connect to the default +libvirt URI, normally Xen. + +=item B<--csv> + +Print the results in CSV format, suitable for importing into a +spreadsheet or database. + +This option is only supported if virt-df was built with CSV support. + +=item B<--debug> + +Emit debugging information on stderr. Please supply this if you +report a bug. + +=item B<-h>, B<--human-readable> + +Display human-readable sizes (eg. "10GiB" instead of large numbers). + +=item B<-i>, B<--inodes> + +Display inode information. + +This option only works for Unix-like filesystems. + +=item B<--help> + +Display usage summary. + +=item B<-t diskimage> + +Test mode. Instead of checking libvirt for domain information, this +runs virt-df directly on the disk image (or device) supplied. You may +specify the B<-t> option multiple times. + +=item B<--version> + +Display version and exit. + +=back + +=head1 EXAMPLE + + # virt-df + Filesystem 1K-blocks Used Available Type + f9x32kvm:hda1 190740 24817 165923 Linux ext2/3 + f9x32kvm:VolGroup/LogVol00 6568348 3401656 3166692 Linux ext2/3 + f9x32kvm:VolGroup/LogVol01 1015808 Linux swap + +=head1 SHORTCOMINGS + +virt-df spies on the guest's disk image to try to work out how much +disk space it is actually using. There are some shortcomings to this, +described here. + +(1) It only understands a limited set of partition types. Assuming +that the files and partitions that we get back from libvirt / Xen +correspond to block devices in the guests, we can go some way towards +manually parsing those partitions to find out what they contain. We +can read the MBR, LVM, superblocks and so on. However that's a lot of +parsing work, and currently there is no library which understands a +wide range of partition schemes and filesystem types (not even +libparted which doesn't support LVM yet). The Linux kernel does +support that, but there's not really any good way to access that work. + +The current implementation uses a hand-coded parser which understands +some formats (MBR, LVM2, ext2/3, DOS FAT, Windows NTFS, Linux swap and +Linux suspend partitions). + +(2) The statistics you get are delayed. The real state of, for +example, an ext2 filesystem is only stored in the memory of the +guest's kernel. The ext2 superblock contains some meta-information +about blocks used and free, but this superblock is not up to date. In +fact the guest kernel may not update it even on a 'sync', not until +the filesystem is unmounted. Some operations do appear to write the +superblock, for example L [that is my reading of the ext2/3 +source code at least]. + +=head1 SECURITY + +The current code tries hard to be secure against malicious guests, for +example guests which set up malicious disk partitions. + +=head1 SEE ALSO + +L, +L, +L, +L, +L, +L, +L + +=head1 AUTHORS + +Richard W.M. Jones + +=head1 COPYRIGHT + +(C) Copyright 2007-2008 Red Hat Inc., Richard W.M. Jones +http://libvirt.org/ + +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, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +=head1 REPORTING BUGS + +Bugs can be viewed on the Red Hat Bugzilla page: +L. + +If you find a bug in virt-df, please follow these steps to report it: + +=over 4 + +=item 1. Check for existing bug reports + +Go to L and search for similar bugs. +Someone may already have reported the same bug, and they may even +have fixed it. + +=item 2. Capture debug and error messages + +Run + + virt-df --debug > virt-df.log 2>&1 + +and keep I. It contains error messages which you should +submit with your bug report. + +=item 3. Get version of virt-df and version of libvirt. + +Run + + virt-df --version + +=item 4. Submit a bug report. + +Go to L and enter a new bug. +Please describe the problem in as much detail as possible. + +Remember to include the version numbers (step 3) and the debug +messages file (step 2). + +=item 5. Assign the bug to rjones @ redhat.com + +Assign or reassign the bug to B (without the +spaces). You can also send me an email with the bug number if you +want a faster response. + +=back diff --git a/virt-mem.txt b/virt-mem.txt new file mode 100644 index 0000000..a8ab3dc --- /dev/null +++ b/virt-mem.txt @@ -0,0 +1,151 @@ +NAME + virt-df - 'df'-like utility for virtualization stats + +SUMMARY + virt-df [-options] + +DESCRIPTION + virt-df is a df(1)-like utility for showing the actual disk usage of + guests. Many command line options are the same as for ordinary *df*. + + It uses libvirt so it is capable of showing stats across a variety of + different virtualization systems. + +OPTIONS + -a, --all + Show all domains. The default is show only running (active) domains. + + -c uri, --connect uri + Connect to libvirt URI. The default is to connect to the default + libvirt URI, normally Xen. + + --csv + Print the results in CSV format, suitable for importing into a + spreadsheet or database. + + This option is only supported if virt-df was built with CSV support. + + --debug + Emit debugging information on stderr. Please supply this if you + report a bug. + + -h, --human-readable + Display human-readable sizes (eg. "10GiB" instead of large numbers). + + -i, --inodes + Display inode information. + + This option only works for Unix-like filesystems. + + --help + Display usage summary. + + -t diskimage + Test mode. Instead of checking libvirt for domain information, this + runs virt-df directly on the disk image (or device) supplied. You + may specify the -t option multiple times. + + --version + Display version and exit. + +EXAMPLE + # virt-df + Filesystem 1K-blocks Used Available Type + f9x32kvm:hda1 190740 24817 165923 Linux ext2/3 + f9x32kvm:VolGroup/LogVol00 6568348 3401656 3166692 Linux ext2/3 + f9x32kvm:VolGroup/LogVol01 1015808 Linux swap + +SHORTCOMINGS + virt-df spies on the guest's disk image to try to work out how much disk + space it is actually using. There are some shortcomings to this, + described here. + + (1) It only understands a limited set of partition types. Assuming that + the files and partitions that we get back from libvirt / Xen correspond + to block devices in the guests, we can go some way towards manually + parsing those partitions to find out what they contain. We can read the + MBR, LVM, superblocks and so on. However that's a lot of parsing work, + and currently there is no library which understands a wide range of + partition schemes and filesystem types (not even libparted which doesn't + support LVM yet). The Linux kernel does support that, but there's not + really any good way to access that work. + + The current implementation uses a hand-coded parser which understands + some formats (MBR, LVM2, ext2/3, DOS FAT, Windows NTFS, Linux swap and + Linux suspend partitions). + + (2) The statistics you get are delayed. The real state of, for example, + an ext2 filesystem is only stored in the memory of the guest's kernel. + The ext2 superblock contains some meta-information about blocks used and + free, but this superblock is not up to date. In fact the guest kernel + may not update it even on a 'sync', not until the filesystem is + unmounted. Some operations do appear to write the superblock, for + example fsync(2) [that is my reading of the ext2/3 source code at + least]. + +SECURITY + The current code tries hard to be secure against malicious guests, for + example guests which set up malicious disk partitions. + +SEE ALSO + df(1), virsh(1), xm(1), , + , , + + +AUTHORS + Richard W.M. Jones + +COPYRIGHT + (C) Copyright 2007-2008 Red Hat Inc., Richard W.M. Jones + http://libvirt.org/ + + 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, write to the Free Software Foundation, Inc., + 675 Mass Ave, Cambridge, MA 02139, USA. + +REPORTING BUGS + Bugs can be viewed on the Red Hat Bugzilla page: + . + + If you find a bug in virt-df, please follow these steps to report it: + + 1. Check for existing bug reports + Go to and search for similar bugs. + Someone may already have reported the same bug, and they may even + have fixed it. + + 2. Capture debug and error messages + Run + + virt-df --debug > virt-df.log 2>&1 + + and keep *virt-df.log*. It contains error messages which you should + submit with your bug report. + + 3. Get version of virt-df and version of libvirt. + Run + + virt-df --version + + 4. Submit a bug report. + Go to and enter a new bug. Please + describe the problem in as much detail as possible. + + Remember to include the version numbers (step 3) and the debug + messages file (step 2). + + 5. Assign the bug to rjones @ redhat.com + Assign or reassign the bug to rjones @ redhat.com (without the + spaces). You can also send me an email with the bug number if you + want a faster response. + diff --git a/virt-uname.1 b/virt-uname.1 new file mode 100644 index 0000000..29f29cc --- /dev/null +++ b/virt-uname.1 @@ -0,0 +1 @@ +.so man1/virt-mem.1 -- 1.8.3.1