Currently if cmd->skipChecks is set (done only from completers)
some basic checks are skipped because we're working over
partially parsed command. See a26ff63ae4 for more detailed
explanation. Anyway, the referenced commit was too aggressive in
disabling checks and effectively returned success even in clear
case of failure. For instance:
# domif-getlink --interface <TAB><TAB>
causes virshDomainInterfaceCompleter() to be called, which calls
virshDomainGetXML() which eventually calls
vshCommandOptStringReq(.., name = "domain"); The --domain
argument is required for the command and if not present -1 should
be returned to tell the caller the argument was not found. Well,
zero is returned meaning the argument was not found but it's not
required either.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The commands which requires a pool to perform any action for a volume is
throwing a segfault when you pass the volume name before a pool name or
without the argument '--pool'.
An example that works:
virsh # vol-list loops-pool
Name Path
-------------------------------------------------------------------
loop0 /mnt/loop0
virsh # vol-info --pool loops-pool lo<TAB>
An example that does not work:
virsh # vol-list loops-pool
Name Path
-------------------------------------------------------------------
loop0 /mnt/loop0
virsh # vol-info lo<TAB>
Segmentation Fault
The example 'vol-info' can be executed as 'vol-info loop0 --pool
loops-pool'. So, this commit fixes this problem when the arguments are
inverted and avoids the segfault.
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While libvirt-guests.sh is running cases can let guest_is_on fail which
causes check_guests_shutdown to print output.
That output shall not spill into the users of function
check_guests_shutdown which is therefore now returning values in a
variable like guest_is_on already did.
Original-Author: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Modified-By: Jorge Niedbalski <niedbalski@ubuntu.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Cast away enum type in places where we don't wish to cover all cases.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The variable names for the options and information about a command
should have an underscore in places where the virsh command has a
hyphen. The function callback name should capitalize the letter after
the hyphen. This was not used in 'blockcommit', 'blockcopy', 'blockjob',
'blockpull', and 'blockresize' commands.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Previously we've removed the data only in virshUpdateDiskXML when
changing the disk source for the CDROM since the backing store would be
invalid. Move the code into a separate function and callit from
virshFindDisk which is also used when detaching disk.
The detaching code does not necessarily need to get the full backing
chain since it will need to act on the one managed by libvirt anyways
and this also takes care of problems when parts of the backing store
were invalid due to buggy RBD detection code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Similarly to other commands add an argument which allows to check the
XML which would be used to execute the operation instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Undefined symbols are a bad thing in general because they can get
resolved in unexpected ways at runtime if multiple sources provide the
same symbol name. For example both glibc and libtirpc may provide XDR
symbols and we want to ensure that we resolve to libtirpc if that's what
we originally built against.
The toolchain maintainers thus strongly recommend that all applications
use the '-z defs' linker flag to prevent undefined symbols. This is
shortly becoming part of the default linker flags for RPMs. As an added
benefit this aligns Linux builds with Windows builds, where the linker
has never permitted undefined symbols.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Currently when the script validates the PKI files and
the certificate 'Subject:' field contains RDNs after
the Common Name (CN), these values are also included,
creating a false result that the CN is not correct.
A small change to the sed regex fixes this issue, by
extracting only the value for CN and nothing else. The
regex is replaced with the exact same regex used to
extract the CN value from the client certificate.
"ln" will not replace an existing symlink, so if you run 'make install'
twice, the second time will get an error:
ln: failed to create symbolic link 'virsh': File exists
We must always remove the symlink target first.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The bash-completion project documents that only those scripts
from $BASH_COMPLETIONS_DIR that share name with the current
command for which <TAB> was hit are loaded [1]. This means, that
vsh script we have there is not loaded. We have to create
symlinks for virsh and virt-admin.
At the same time, we have to create new RPM package because
virt-admin and client packages are independent. That means we
cannot place the vsh script in either of them. What we can do is
to have a different package that contains the completion script
and then virt-admin and client packages contain only the symlink
and require the bash-completion package.
1: https://github.com/scop/bash-completion#faq
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Only a small subset of VIR_CONNECT_LIST_DOMAINS_* flags are
actually used for this completer. Remove the unused ones. Note
that this is unrelated to other commands using
VIR_CONNECT_LIST_DOMAINS_* (i.e. cmdList) as this commit targets
the completer only and nothing else.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Unfortunately, we have a number of aliases in virsh and even though
these are not visible any more, we have to support them. The problem is
that when trying to print help for the alias, we get SIGSEGV because
there isn't any @def structure anymore and we need to query the command
being aliased instead.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1538570
Signed-off-by: Erik Skultety <eskultet@redhat.com>
These helpers are called from a single place only - cmdHelp wrapper and
just before the wrapper invokes the helpers, it performs the search,
either for command group or for the command itself, except the result is
discarded and the helper therefore needs to do it again. Drop this
inefficient handling and pass the @def structure rather than a name,
thus preventing the helper from needing to perform the search again.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This is a slight change from previous patches since virSecret
does not have a name only UUID strings.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The virConnectListAllNWFilters() has no extra flags yet, which
simplifies things a bit.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Yet again, we don't need listing by device capabilities, so flags
are unused.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This one is a bit simpler since virStoragePoolListAllVolumes()
has no flags yet.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The functions defined in these sources are referenced all over
the place, however, compiler only when building with readline.
Thus when building without it linker gets sad as it can't find
them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
When building without readline, this function does nothing but
return false. Without touching any of its arguments which
triggers a build error. Therefore, provide a stub that has
arguments marked as unused.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The current state of art is as follows:
1) vshReadlineOptionsGenerator() generate all possible --options
for given command, and then
2) vshReadlineOptionsPrune() clears out already provided ones
from the list.
Not only this brings needless memory complexity it is also not
trivial to get right. We can switch to easier approach: just
don't add already specified --options in the first step.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
For given domain fetch list of defined interfaces. This can be
used for commands like domif-getlink and others. If available,
the interface name is returned (e.g. "vnet0", usually available
only for running domains), if not the MAC address is returned.
Moreover, the detach-interface command requires only MAC address
and therefore we have new flag that forces the completer to
return just the MAC address.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Now that we have everything prepared let the fun begin. This
completer is very simple and returns domain names. Moreover,
depending on the command it can return just a subset of domains
(e.g. only running/paused/transient/.. ones).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The only purpose of this file is to be sourced. After that one
can use completion even for their bash:
# virsh list --<TAB><TAB>
--all --inactive ...
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This command is going to be called from bash completion script in
the following form:
virsh complete -- start --domain
Its only purpose is to return list of possible strings for
completion. Note that this is a 'hidden', unlisted command and
therefore there's no documentation to it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Similarly to the previous commit, once we've presented an
--option for a command to the user it makes no sense to offer it
again. Therefore, we can prune all already specified options. For
instance, after this patch:
virsh # migrate --verbose <TAB><TAB>
will no longer offer --verbose option.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Instead of having completers prune returned string list based on
user's input we can do that right after the callback is called.
Only strings matching the prefix will be presented to the user
then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Now that we have everything prepared we can call options'
completer again. At the same time, pass partially parsed input to
the completer callback - it will help the callbacks to narrow
down the list of returned options based on user's input. For
instance, if the completer is supposed to return list of
interfaces depending on user input it may return just those
interfaces defined for already specified domain. Of course,
completers might ignore this parameter.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In the future, completer callbacks will receive partially parsed
command (and thus possibly incomplete). However, we still want
them to use command options fetching APIs we already have (e.g.
vshCommandOpt*()) and at the same time don't report any errors
(nor call any asserts).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
It's better to fetch list of either commands or options just once
and then iterate over it. Moreover, it makes future completers
way simpler as they will return string lists too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When returning a string that needs escaping there are two
scenarios that can happen. Firstly, user already started the
string with a quote (or double quote) in which case we don't need
to do anything - readline takes care of that. However, if they
haven't typed anything yet, we need to escape the string
ourselves.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Now that we have a way of retrieving partly parsed command we
don't need duplicate code that parses the user's input.
Yes, this code removes call of opt's completer, but:
a) current implementation is broken anyway, and
b) it will be added back shortly
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In the future, this function is going to be called from
vshReadlineParse() to provide parsed input for completer
callbacks. The idea is to allow the callbacks to provide more
specific data. For instance, for the following input:
virsh # domifaddr --domain fedora --interface <TAB><TAB>
the --interface completer callback is going to be called. Now, it
is more user friendly if the completer offers only those
interfaces found in 'fedora' domain. But in order to do that it
needs to be able to retrieve partially parsed result.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When parsing cmd line which has "--" on it, this is leaked.
Problem is, parser->getNextArg() allocates new string and stores
it into tkdata. But as soon as "--" is detected 'continue' is
issued without any free of the allocated memory.
==5304== 3 bytes in 1 blocks are definitely lost in loss record 1 of 782
==5304== at 0x4C2AF50: malloc (vg_replace_malloc.c:299)
==5304== by 0x8BB5AA9: strdup (strdup.c:42)
==5304== by 0x55842CA: virStrdup (virstring.c:941)
==5304== by 0x172B21: _vshStrdup (vsh.c:162)
==5304== by 0x175E8E: vshCommandArgvGetArg (vsh.c:1622)
==5304== by 0x17551D: vshCommandParse (vsh.c:1418)
==5304== by 0x175F25: vshCommandArgvParse (vsh.c:1638)
==5304== by 0x130940: virshParseArgv (virsh.c:820)
==5304== by 0x130C49: main (virsh.c:922)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The list_guests function in libvirt-guests uses 'grep -v' to filter
Xen domain0 from a list of guests. If domain0 is the only item in
the list, 'grep -v' returns 1, causing the 'stop' operation to fail
when action is 'suspend'. Improve the filtering by using sed to remove
domain0 from the list of guests.
This commit fixes the virsh prompt when reconnection to the same URI is
called: `virsh # connect --readonly` (Reconnect). The problem is
happening because the code is considering URI (name) as a mandatory
parameter to change the prompt. This commit remove the assignment into
`priv->readonly` from `if (name)` conditional.
Before:
virsh # uri
qemu:///system
virsh # connect --readonly
virsh #
After:
virsh # uri
qemu:///system
virsh # connect --readonly
virsh >
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1507737
Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
My latest commit of a785186446 uncovered a problem we fixed
in 9eb23fe2 but then reverted in 834c5720e4. Turns out, some
systems (I'm looking at you OS X) have ancient readline with
broken header file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
According to the man page <interface-device> can be specified either by
name or MAC address, adjust the command's help accordingly.
Signed-off-by:ZhiPeng Lu <lu.zhipeng@zte.com.cn>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Because WARN_CFLAGS and COVERAGE_CFLAGS are not set globally, we
rely on each binary built to include WARN_CFLAGS/COVERAGE_CFLAGS.
But it is easy to forget those - e.g. libvirt_shell.la. However,
don't enable WARN_FLAGS (i.e. don't include AM_CFLAGS) for
wireshark plugin - parts of that code are generated and trigger
some warnings.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
