similar to: [PATCH v2 0/5] Fix SELinux security contexts so we can access shared disks (RHBZ#912499).

https://bugzilla.redhat.com/show_bug.cgi?id=912499 (especially comments 7 & 10) This patch set is the final fix so that we can access disks in use by other guests when SELinux and sVirt are enabled. Previously such disks were inaccessible because sVirt labels the disks with a random SELinux label to prevent other instances of qemu from being able to read them. So naturally the libguestfs

This is, I guess, version 3 of this patch series which adds disk labels and hotplugging (only hot-add implemented so far). The good news is .. it works! Rich.

This rounds off hotplugging support by allowing you to add and remove drives at any stage (before and after launch). Rich.

QEMU upstream has broken snapshot=on ... again. These two patches stop using it entirely. Instead we run 'qemu-img create' to create overlay disks as required. Note that the libvirt and UML backends were already doing this: The libvirt backend because <transient/> has never worked, and the UML backend was running uml_mkcow because the UML-equivalent syntax of snapshot=on was

v1 was here: https://www.redhat.com/archives/libguestfs/2018-October/msg00047.html However it was broken in a few ways. First of all the documentation was broken because "/**" enhanced comments were not permitted on macros. This is fixed in the new 1/4 patch. Secondly we didn't use single_element() everywhere possible, which is fixed in the new 4/4 patch. Lastly I've

v1 was here: https://www.redhat.com/archives/libguestfs/2018-October/msg00047.html v2 was here: https://www.redhat.com/archives/libguestfs/2018-October/msg00051.html v3: - Back to using string/string_format and attribute/attribute_format. - Add both single_element and single_element_format. - Rebased and retested. Rich.

This preliminary patch series adds a libvirt backend to libguestfs. It's for review only because although it launches the guest OK, there are some missing features that need to be implemented. The meat of the patch is in part 4/4. To save you the trouble of interpreting libxml2 fragments, an example of the generated XML and the corresponding qemu command line are attached below. Note the

Consolidate and extend the use of funky start_element() etc macros. Rich.

This series improves ceph rbd support in libguestfs. It uses the servers list, adds support for a custom username, and starts to add support for custom secret.

From: "Richard W.M. Jones" <rjones at redhat.com> You can now add remote NBD drives using: ><fs> add-drive "" format:raw protocol:nbd server:localhost (Note that you also need to add port:NNNN if the server is running on a non-standard port). The corresponding qemu-nbd service can be started by doing: qemu-nbd disk.img -t This commit also adds a test. ---

Move the checks for empty xmlXPathObjectPtr, and for extracting the result string out of it, to a new helper functions. This is just code motion, there should be no behaviour changes. --- src/libvirt-domain.c | 122 +++++++++++++++++++++------------------------------ 1 file changed, 50 insertions(+), 72 deletions(-) diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index 4d4142d..baab307

Here's the new API method and update to virt-inspector. I still need to implement app_arch for debian and windows (if applicable), for now they just return empty strings. New in v2: incorporated feedback from v1, also added patch #3 which updates the documentation where it references the deprecated API. Take it or leave it.

Small cleanup helper to dispose xmlChar* buffers. --- src/cleanup.c | 9 +++++++++ src/guestfs-internal-frontend.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/src/cleanup.c b/src/cleanup.c index 1aa3051..6c4558c 100644 --- a/src/cleanup.c +++ b/src/cleanup.c @@ -106,6 +106,15 @@ guestfs_int_cleanup_unlink_free (char **ptr) } void +guestfs_int_cleanup_xmlFree

Result of earlier copy and paste. --- align/scan.c | 35 ++++++++++--------- cat/cat.c | 39 +++++++++++---------- cat/filesystems.c | 69 +++++++++++++++++++------------------- cat/log.c | 35 ++++++++++--------- cat/ls.c | 61 +++++++++++++++++---------------- df/main.c | 43 ++++++++++++------------ diff/diff.c | 67

Simple fix for this assert-fail found in: https://bugzilla.redhat.com/show_bug.cgi?id=1370424 Rich.

--- inspector/inspector.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/inspector/inspector.c b/inspector/inspector.c index 3583c61df..30d279987 100644 --- a/inspector/inspector.c +++ b/inspector/inspector.c @@ -347,6 +347,7 @@ output_root (xmlTextWriterPtr xo, char *root) char buf[32]; char *canonical_root; size_t size; + int is_bsd; XMLERROR

Miscellaneous fixes to: - Handling of Ceph drives now works end-to-end (RHBZ#1026688). - In particular, you can now use rbd:/// URIs in guestfish (and they work). - Parse Ceph & NBD network drives from libvirt XML correctly, so that existing domains with Ceph/NBD drives can be added (eg. using guestfish -d option). - Add more testing of the above.

In version 2: - No substantial change, I just tidied up the code a bit. - Removed one case where whitespace changes had crept in. Rich.

The proposed API is the same as v1, but this includes an implementation (for /etc/sysconfig/network-scripts/ifcfg-*) and modifications to virt-inspector. This compiles and works. If you look in patch 5 you can see proposed output as virt-inspector XML for a guest (although this guest has not been booted, so a real guest would hopefully have a hwaddr="MAC" attribute too). Rich.

A disk of type 'volume' is stored as <source pool='pool_name' volume='volume_name'/> and its real location is inside the 'volume_name', as 'pool_name': in this case, query libvirt for the actual path of the specified volume in the specified pool. Adjust the code so that: - for_each_disk gets the virConnectPtr, needed to do operations with libvirt