Building with GCC 8.3 on Buster identifies:
src/xenstat_linux.c: In function 'xenstat_collect_networks':
src/xenstat_linux.c:307:32: warning: 'snprintf' output may be truncated before
the last format character [-Wformat-truncation=]
snprintf(devNoBridge, 16, "p%s", devBridge);
^
src/xenstat_linux.c:307:2: note: 'snprintf' output between 2 and 17 bytes into
a destination of size 16
snprintf(devNoBridge, 16, "p%s", devBridge);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
devNoBridge[] needs one charater more than devBridge[], so allocate one byte
more. Replace a raw 16 in the snprintf() call with a sizeof() expression
instead.
Finally, libxenstat, unlike most of the rest of the Xen, doesn't use -Werror
which is why this issue went unnoticed in CI. Fix this.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
When compiling xenstat with -Werror, Clang complains:
src/xenstat.c:134:34: error: unused function 'parse' [-Werror,-Wunused-function]
static inline unsigned long long parse(char *s, char *match)
^
1 error generated.
Drop the function. It really is unused.
Spotted by Travis-CI.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
Remove all tmem related code in libxc.
Leave some stubs in libxl in case anyone has linked to those functions
before the removal.
Remove all tmem related commands in xl, all tmem related code in other
utilities we ship.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
libxenstat does not have a stable ABI. Set its version to the current
Xen release version.
Signed-off-by: Ian Jackson <ian.jackson@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
gcc-8.1 complains:
| xentop.c: In function 'print':
| xentop.c:304:4: error: 'vwprintw' is deprecated [-Werror=deprecated-declarations]
| vwprintw(stdscr, (curses_str_t)fmt, args);
| ^~~~~~~~
vw_printw (note the underscore) is a non-deprecated alternative.
Signed-off-by: Christopher Clark <christopher.clark6@baesystems.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
With gcc 7.3.0, the build fails like this:
src/xenstat_linux.c: In function ‘getBridge’
src/xenstat_linux.c:78:34: warning: ‘%s’ directive writing up to 255 bytes into a region of size 241 [-Wformat-overflow=]
sprintf(tmp, "/sys/class/net/%s/bridge", de->d_name);
^~
src/xenstat_linux.c:78:5: note: ‘sprintf’ output between 23 and 278 bytes into a destination of size 256
sprintf(tmp, "/sys/class/net/%s/bridge", de->d_name);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix by making the buffer bigger.
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
DEPS_INCLUDE is currently the same as DEPS, so no functional change.
This patch is the result of this perl rune:
git-grep -l 'include.*DEPS' | xargs perl -i -pe 'next unless m/^-?include/; s/\bDEPS\b/DEPS_INCLUDE/'
I have verified that I haven't missed anything, with this rune:
git-grep '\bDEPS\b'
Reported-by: Jan Beulich <JBeulich@suse.com>
CC: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
DEPS_RM is currently the same as DEPS, so no functional change.
This patch is the result of two perl runes:
git-grep -l 'rm.*DEPS' | xargs perl -i~ -pe 'next unless m/^\t+rm\b/; s/\bDEPS\b/DEPS_RM/;'
git-grep -l 'RM.*DEPS' | xargs perl -i~ -pe 'next unless m/^\t+\$\(RM\)/; s/\bDEPS\b/DEPS_RM/;'
And editing tools/xenstat/libxenstat/Makefile by hand.
I verified that I didn't miss anything with this rune:
git-grep '\bDEPS\b' | grep -v include |less
Reported-by: Jan Beulich <JBeulich@suse.com>
CC: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Running "make uninstall" does not remove all installed files, a
situation which might cause link related issues if xen is re-installed
in a different location.
In order to make uninstall correctly remove the files it is best
the process should be done recursively by mirroring each "install"
target with an "uninstall" who removes the installed files.
An exception to this rule is uninstalling the files produced by
"qemu-xen-dir-remote" and "qemu-xen-traditional-dir", which are external
to the project. These projects do not implement an "uninstall" target so
the files have to be removed manually.
Signed-off-by: Petre Pircalabu <ppircalabu@bitdefender.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
This fixes the python bindings, since symbols were missing in libxenstat.
xentop doesn't use any yajl functions, so drop linking libyajl.
Signed-off-by: Peter Große <pegro@friiks.de>
Acked-by: Wei Liu <wei.liu2@citrix.com>
In order to be able to use pkg-config for obtaining linker- and
compiler-flags provide a xenstat.pc file.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
This check for curses.h does not consider cross-compilation.
It only checks host paths.
Luckily, commit 65da491321
introduced proper configure checks for ncurses so we can
remove the redundant check in the Makefile.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
This is because libxl uses XEN_RUN_DIR to generate the socket path for
libxenstat while libxenstat itself uses hard-coded path, which is not
necessarily the same path as XEN_RUN_DIR. The default configuration
happened to work because XEN_RUN_DIR defaulted to /var/run/xen, which
matched the hard-coded path.
We should make libxenstat use XEN_RUN_DIR so that it works with
non-default configuration.
Generate a _paths.h because it is required to make this change work.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Clang points out that this is tautological.
src/xenstat.c:325:8: warning: comparison of 0 <= unsigned expression is
always true [-Wtautological-compare]
if (0 <= index && index < node->num_domains)
~ ^ ~~~~~
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
xentop will segmentation fault in this case:
# ip link set eth1 down
# ip link set eth1 name ETH
# xentop
This patch will let xentop to handle all uppercase network interface name.
Signed-off-by: Zhigang Wang <zhigang.x.wang@oracle.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Release-acked-by: Wei Liu <wei.liu2@citrix.com>
We change the xen_version libxc code to use the new hypercall.
Which of course means every user in the code base has to
be changed over.
It is important to note that the xc_version_op has a different
return semantic than the previous one. It returns negative
values on error (like the old one), but it also returns
an positive value on success (unlike the old one). The positive
value is the number of bytes copied in.
Note that both Ocaml and xenstat use tabs instead of four
spaces so they look quite odd.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Tested-by: Andrew Cooper <andrew.cooper3@citrix.com> [for the Ocaml stubs]
Acked-by: George Dunlap <george.dunlap@eu.citrix.com> [xenctx bits]
Acked-by: Wei Liu <wei.liu2@citrix.com>
get_domain_ids() in libxenstat used by read_attributes_qdisk() is
limited to 1024 domains. Remove that limit.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
The operations are to be used by an control domain to set parameters,
list pools, clients, and to be used during migration.
There is no need to have them in the tmem hypercall path.
This patch moves code without adding fixes - and in fact in
some cases makes the parameters soo long that they hurt eyes - but
that is for another patch.
Note that in regards to existing users:
- Only the control domain could call it - which meant that if
a guest called it would get -EPERM, so we are OK there.
In practice no guests called this TMEM_CONTROL command.
- The spec: https://oss.oracle.com/projects/tmem/dist/documentation/api/tmemspec-v001.pdf
mentions: "TBD [Not sure if this is really needed.]"
which is a carte blanche as any to do this!
Note: The XSM check is the same - we just move it from do_tmem_op
to do_sysctl.
We also add an 32-bit pad to make the sysctl structure have the same
exact size under 32 and 64-bit toolstacks and not worry about aligment
issues.
And the XLAT does not need to deal with the buf as it has been
moved to another structure which is 32/64 fixed.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Acked-by: Jen Beulich <jbeulich@suse.com>
It mentions it but it is never used. The hypercall interface
knows nothing of this sort of thing either. Lets just remove it.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Wei Liu <wei.liu2@citrix.com> [release + toolstack]
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
And transform to POD to match our other manpages.
The content is identical, although the layout differs slightly with
certain indentation.
In addition, adjust the MAN{1,5}SRC-y `find` runes to be more general.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
As recommended in http://www.gnu.org/licenses/gpl-howto.en.html.
This is the result of:
$ git grep -El Mass\|Temple\|Franklin | xargs ./fsf.pl
Where fsf.pl is:
#!/usr/bin/perl -w -pi.bak -0777
my $repl = 'If not, see <http://www.gnu.org/licenses/>.';
my $br = qr/(?:\s*\n\s*(?:[\*\#]|\/\/|\.\\" )?\s*|\s+)/;
my $inwt = qr/[Ii]f${br}not,${br}write${br}(?:to${br})?the${br}Free${br}Software${br}Foundation,(?:${br}Inc\.,)?/;
my $mass = qr/675${br}Mass${br}Ave,?${br}Cambridge,?${br}MA${br}02139,?${br}USA,?\.?/;
my $franklin = qr/51${br}Franklin${br}St(?:reet)?(?:,${br}| - )Fifth${br}Floor,?${br}Boston,?${br}MA,?${br}02110-1301,?${br}USA,?\.?/;
my $temple = qr/59${br}Temple${br}Place(?:,${br}| - )Suite${br}330,?${br}Boston,?${br}MA,?${br}021110?-1307,?${br}USA,?\.?/;
s|$inwt$br$mass|$repl|m;
s|$inwt$br$franklin|$repl|m;
s|$inwt$br$temple|$repl|m;
The only remaining mentions of these addresses are in COPYING files which I
haven't touched.
Some of the changed files are imports from elsewhere, however
filtering them out is tricky, I think it is tolerable to have these
files be modified here and then perhaps reverted on the next sync,
since it's only 1-2 lines and obvious what is going on.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Instead switch to an explicit -include $(XEN_ROOT)/tools/config.h to
pickup config.h.
Most places already do this, fixup the rest.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
binutils 2.22 changed ld default from --copy-dt-needed-entries
to -no-copy-dt-needed-entries. This revealed that some objects
are linked implicitly with libtinfo and newer ld fails to build
relevant executables.
Below is short explanation why we should not do that...
http://fedoraproject.org/wiki/UnderstandingDSOLinkChange says:
The default behaviour for ld (my note: before version 2.22) allows
users to 'indirectly' link to required objects/libraries through
intermediate objects/libraries. While this is convenient, it can
also be dangerous because it makes your program's dependencies tied
to the dependencies of other objects. If those objects ever change
their linkages, they can break your program without any changes
to your own code!
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Now that Xen uses qdisks by default and qemu does not write out
statistics to sysfs this patch queries the QMP for disk statistics.
This patch depends on libyajl for parsing statistics returned from
QMP. The runtime requires libyajl 2.0.3 or newer for required bug
fixes in yajl_tree_parse().
Libxl is modified to create a new socket dedicated for the use of
libxenstat for querying the block statistics using QMP.
The current APIs remain unchanged. It works within the existing
framework of libxenstat.
Signed-off-by: Charles Arnold <carnold@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
The API returns now negative values on error and stashes
the error in errno. Fix the user of this API.
The 'xc_hypercall_bounce_pre' can fail - and if so it will
stash its errno values - no need to over-write it.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Coverity uses several heuristics to identify when one case statement
legitimately falls through into the next, and a comment as the final item in a
case statement is one heuristic (the assumption being that it is a
justification for the fallthrough).
Use this to perform an audit of defects and hide the legitimate fallthroughs.
There are two bugfixes identified in the audit, both minor:
* 'n' command line handling for gtracestat
* BKSPC handling in xentop
All other identified defaults are legitimate fallthoughs
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Coverity-IDs: 1055464, 1055465, 1055467, 1055468, 1055481, 1055482
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Ian Jackson <Ian.Jackson@eu.citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
CC: Xen Coverity Team <coverity@xen.org>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Don Koch <dkoch@verizon.com>
The original rule to target "distclean" in tools/Rules.mk was in effect
"make clean". It should be "make distclean".
However not all Makefiles in subdirectories have distclean target
defined. So this patch also adds a bunch of distclean targets to various
Makefiles. They only depend on clean target and don't have any actions
in most cases.
With the patch applied, following command outputs 0 results:
find tools -name 'Makefile*' -exec grep -L 'distclean' {} \+ \
| grep -v ocaml | grep -v libfsimage
Ocaml and libfsimage are known to have distclean defined in a dedicated
rules file.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Allow certain xentop columns to automatically expand as the amount
of data reported gets larger. The columns allowed to auto expand are:
NETTX(k), NETRX(k), VBD_RD, VBD_WR, VBD_RSECT, VBD_WSECT
If the -f option is used to allow full length VM names, those names will
also be aligned based on the longest name in the NAME column.
The default minimum width of all columns remains unchanged.
Signed-off-by: Markus Hauschild <Markus.Hauschild@rz.uni-regensburg.de>
Signed-off-by: Charles Arnold <carnold@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
CFLAGS+=-Wall is already provided by Config.mk
WARN_FLAGS is not used.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Before trying to parse network interface name as 'vif*.*'
try to get the domid and network number from sysfs.
Fixes xentop output for domains with VIF renamed through the
'vifname' xl option.
Signed-off-by: Jacek Konieczny <jajcus@jajcus.net>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
getBridge's method of returning a result was a little confused:
allocating a result buffer but never using it.
Simplify by instead allowing a result buffer to be passed in and
modifying the single usage to match.
Signed-off-by: Matthew Daley <mattd@bugfuzz.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Commit 1438d36f ("xenstat: Fix buffer over-run with new_domains being
negative.") attempted to fix the handling of a negative error result
from xc_domain_getinfolist in xenstat_get_node. However, it forgot to
change the result variable from an unsigned type to a signed one.
Do so, allowing the error result to be handled properly.
Signed-off-by: Matthew Daley <mattd@bugfuzz.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Andrew Cooper
Wei Liu
Pritha Srivastava
Bastian Blank
Ian Jackson
Christopher Clark
Dario Faggioli
Ian Jackson
Petre Pircalabu
Peter Große
Alistair Francis
Juergen Gross
Edgar E. Iglesias
Konrad Rzeszutek Wilk
Zhigang Wang
Ian Campbell
Daniel Kiper
Olaf Hering
Charles Arnold
Markus Hauschild
Christian Wolter
Jacek Konieczny
Matthew Daley