[Libguestfs] [v2v PATCH] convert: document networking dependency of "--key ID:clevis"

[Laszlo Ersek]

Virt-v2v enables appliance networking already, for the sake of
"unconfigure_vmware". We now have a second use case for networking: "--key
ID:clevis". Update the comment in the code.

(Short log for libguestfs-common commit range 9e990f3e4530..0399dea30e63:

Laszlo Ersek (12):
      options: fix buffer overflow in get_keys() [CVE-2022-2211]
      options: fix UUID comparison logic bug in get_keys()
      mltools/tools_utils: remove unused function "key_store_to_cli"
      mltools/tools_utils: allow multiple "--key" options for OCaml tools too
      options: replace NULL-termination with number-of-elements in get_keys()
      options: wrap each passphrase from get_keys() into a struct
      options: add back-end for LUKS decryption with Clevis+Tang
      options: introduce selector tpe "key_clevis"
      options: generalize "--key" selector parsing for C-language utilities
      mltools/tools_utils: generalize "--key" selector parsing for OCaml utils
      options, mltools/tools_utils: parse "--key ID:clevis" options
      options, mltools/tools_utils: add helper for network dependency
).

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1809453
Signed-off-by: Laszlo Ersek <lersek at redhat.com>
---

Notes:
    The submodule commit range 9e990f3e4530..0399dea30e63 needs to be
    refreshed in both the commit message and the "common" hunk, once the
    libguestfs-common series is upstream.

 convert/convert.ml | 3 ++-
 common             | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/convert/convert.ml b/convert/convert.ml
index 87fca7252ba3..17a75e3fad32 100644
--- a/convert/convert.ml
+++ b/convert/convert.ml
@@ -54,11 +54,12 @@ let rec convert dir options source =
   g#set_memsize (g#get_memsize () * 2);
   (* Setting the number of vCPUs allows parallel mkinitrd, but make
    * sure this is not too large because each vCPU consumes guest RAM.
    *)
   g#set_smp (min 8 (Sysconf.nr_processors_online ()));
-  (* The network is only used by the unconfigure_vmware () function. *)
+  (* The network is used by the unconfigure_vmware () function, and the "--key
+   * ID:clevis" command line options (if any). *)
   g#set_network true;
   List.iter (
     fun { s_disk_id = i } ->
       (* NB: Old virt-v2v used copyonread here, when it was using a
        * qcow2 file as overlay.  We MUST NOT use copyonread!  It
diff --git a/common b/common
index 9e990f3e4530..0399dea30e63 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit 9e990f3e4530df3708d176bc50e0bc68cf07d3ff
+Subproject commit 0399dea30e6353870183a07a82d05b4ec8f20ca0
-- 
2.19.1.3.g30247aa5d201