open Virt_mem_gettext.Gettext
open Virt_mem_utils
-open Virt_mem_mmap
-
-let usage = s_"NAME
- virt-uname - uname command for virtual machines
-
-SUMMARY
- virt-uname [-options] [domains]
-
-DESCRIPTION
- virt-uname prints the uname information such as OS version,
- architecture and node name for virtual machines running under
- libvirt."
-
-let verbose, images = Virt_mem.start usage
-
-let () =
- (* Print new_utsname structure from bitstring. *)
- let print_new_utsname name bs =
- (* Truncate an OCaml string at the first ASCII NUL character, ie. as
- * if it were a C string.
- *)
- let truncate str =
- try
- let i = String.index str '\000' in
- String.sub str 0 i
- with
- Not_found -> str
- in
- bitmatch bs with
- | { sysname : 65*8 : string;
- nodename : 65*8 : string;
- release : 65*8 : string;
- version : 65*8 : string;
- machine : 65*8 : string;
- domainname : 65*8 : string } ->
- printf "%s: %s %s %s %s %s %s\n"
- name
- (truncate sysname) (truncate nodename) (truncate release)
- (truncate version) (truncate machine) (truncate domainname)
- | { _ } ->
- eprintf (f_"%s: unexpected system_utsname in kernel image\n")
- name
- in
-
- List.iter (
- fun (name, arch, mem, lookup_ksym) ->
- (* In Linux 2.6.25, the symbol is init_uts_ns.
- * http://lxr.linux.no/linux/init/version.c
- *)
- try
- let addr = lookup_ksym "init_uts_ns" in
- if verbose then printf "init_uts_ns at %Lx\n" addr;
-
- let bs = Bitmatch.bitstring_of_string (get_bytes mem addr (65*6+4)) in
- (bitmatch bs with
- | { _ : 32 : int; (* the kref, atomic_t, always 32 bits *)
- new_utsname : -1 : bitstring } ->
- print_new_utsname name new_utsname
- | { _ } ->
- eprintf (f_"%s: unexpected init_uts_ns in kernel image\n")
- name)
- with
- Not_found ->
- (* In Linux 2.6.9, the symbol is system_utsname.
- * http://lxr.linux.no/linux-bk+v2.6.9/include/linux/utsname.h#L24
- *)
- try
- let addr = lookup_ksym "system_utsname" in
- if verbose then printf "system_utsname at %Lx\n" addr;
-
- let bs =
- Bitmatch.bitstring_of_string (get_bytes mem addr (65*6)) in
- print_new_utsname name bs
- with
- Not_found ->
- eprintf (f_"%s: could not find utsname in kernel image\n") name
- ) images
+open Virt_mem_types
+
+let run debug ({ domname = domname }, _, utsname) =
+ match utsname with
+ | Some u ->
+ printf "%s: %s %s %s %s %s %s\n"
+ domname
+ u.kernel_name u.nodename u.kernel_release
+ u.kernel_version u.machine u.domainname
+ | None ->
+ eprintf (f_"%s: no system_utsname in kernel image\n") domname
+
+let summary = s_"uname command for virtual machines"
+let description = s_"\
+virt-uname prints the uname information such as OS version,
+architecture and node name for virtual machines running under
+libvirt."
+
+let () = Virt_mem.register "uname" summary description ~run