[Libguestfs] [PATCH 1/1] New API: luks_uuid

Return the UUID of a LUKS device. --- daemon/luks.c | 25 +++++++++++++++++++++++++ generator/actions_core.ml | 8 ++++++++ generator/proc_nr.ml | 1 + lib/MAX_PROC_NR | 2 +- 4 files changed, 35 insertions(+), 1 deletion(-) diff --git a/daemon/luks.c b/daemon/luks.c index 5c48a91eb..d631cb100 100644 --- a/daemon/luks.c +++ b/daemon/luks.c @@ -292,3 +292,28 @@ do_luks_kill_slot (const char *device, const char *key, int keyslot) return 0; } + +char * +do_luks_uuid (const char *device) +{ + const char *argv[MAX_ARGS]; + size_t i = 0; + + ADD_ARG (argv, i, "cryptsetup"); + ADD_ARG (argv, i, "luksUUID"); + ADD_ARG (argv, i, device); + ADD_ARG (argv, i, NULL); + + char *out = NULL; + CLEANUP_FREE char *err = NULL; + int r = commandv (&out, &err, (const char * const *) argv); + + if (r == -1) { + reply_with_error ("%s", err); + return NULL; + } + + trim (out); + + return out; +} diff --git a/generator/actions_core.ml b/generator/actions_core.ml index 8443ae79e..cb7e8dcd0 100644 --- a/generator/actions_core.ml +++ b/generator/actions_core.ml @@ -9728,4 +9728,12 @@ it is useful when you have added a new device or deleted an existing device (such as when the C<guestfs_luks_open> API is used)." }; + { defaults with + name = "luks_uuid"; added = (1, 41, 9); + style = RString (RPlainString, "uuid"), [String (Device, "device")], []; + optional = Some "luks"; + shortdesc = "get the UUID of a LUKS device"; + longdesc = "\ +This returns the UUID of the LUKS device C<device>." }; + ] diff --git a/generator/proc_nr.ml b/generator/proc_nr.ml index efa8c5d21..11a557076 100644 --- a/generator/proc_nr.ml +++ b/generator/proc_nr.ml @@ -514,6 +514,7 @@ let proc_nr = [ 504, "part_get_gpt_attributes"; 505, "f2fs_expand"; 506, "lvm_scan"; +507, "luks_uuid"; ] (* End of list. If adding a new entry, add it at the end of the list diff --git a/lib/MAX_PROC_NR b/lib/MAX_PROC_NR index 80e3e6eab..055b6671a 100644 --- a/lib/MAX_PROC_NR +++ b/lib/MAX_PROC_NR @@ -1 +1 @@ -506 +507 -- 2.21.0