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https://github.com/libguestfs/libguestfs.git
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307c83177c
Run the following command over the source: perl -pi.bak -e 's/(20[01][0-9])-2015/$1-2016/g' `git ls-files`
132 lines
4.4 KiB
OCaml
132 lines
4.4 KiB
OCaml
(* virt-v2v
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* Copyright (C) 2009-2016 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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(* Utilities used in virt-v2v only. *)
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open Printf
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open Common_gettext.Gettext
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open Common_utils
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let quote = Filename.quote
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(* Parse an xpath expression and return a string/int. Returns
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* [Some v], or [None] if the expression doesn't match.
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*)
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let xpath_eval parsefn xpathctx expr =
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let obj = Xml.xpath_eval_expression xpathctx expr in
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if Xml.xpathobj_nr_nodes obj < 1 then None
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else (
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let node = Xml.xpathobj_node obj 0 in
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let str = Xml.node_as_string node in
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try Some (parsefn str)
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with Failure "int_of_string" ->
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error (f_"expecting XML expression to return an integer (expression: %s, matching string: %s)")
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expr str
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)
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external identity : 'a -> 'a = "%identity"
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let xpath_string = xpath_eval identity
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let xpath_int = xpath_eval int_of_string
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let xpath_int64 = xpath_eval Int64.of_string
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(* Parse an xpath expression and return a string/int; if the expression
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* doesn't match, return the default.
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*)
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let xpath_eval_default parsefn xpath expr default =
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match xpath_eval parsefn xpath expr with
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| None -> default
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| Some s -> s
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let xpath_string_default = xpath_eval_default identity
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let xpath_int_default = xpath_eval_default int_of_string
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let xpath_int64_default = xpath_eval_default Int64.of_string
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external drive_name : int -> string = "v2v_utils_drive_name"
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external drive_index : string -> int = "v2v_utils_drive_index"
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(* Map guest architecture found by inspection to the architecture
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* that KVM must emulate. Note for x86 we assume a 64 bit hypervisor.
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*)
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let kvm_arch = function
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| "i386" | "i486" | "i586" | "i686"
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| "x86_64" -> "x86_64"
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| "unknown" -> "x86_64" (* most likely *)
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| arch -> arch
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(* Does qemu support the given sound card? *)
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let qemu_supports_sound_card = function
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| Types.AC97
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| Types.ES1370
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| Types.ICH6
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| Types.ICH9
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| Types.PCSpeaker
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| Types.SB16
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| Types.USBAudio
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-> true
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(* Find the UEFI firmware. *)
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let find_uefi_firmware guest_arch =
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let files =
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match guest_arch with
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| "i386" | "i486" | "i586" | "i686" ->
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[ "/usr/share/edk2.git/ovmf-ia32/OVMF_CODE-pure-efi.fd",
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"/usr/share/edk2.git/ovmf-ia32/OVMF_VARS-pure-efi.fd" ]
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| "x86_64" ->
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[ "/usr/share/OVMF/OVMF_CODE.fd",
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"/usr/share/OVMF/OVMF_VARS.fd";
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"/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd",
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"/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd" ]
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| "aarch64" ->
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[ "/usr/share/AAVMF/AAVMF_CODE.fd",
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"/usr/share/AAVMF/AAVMF_VARS.fd";
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"/usr/share/edk2.git/aarch64/QEMU_EFI-pflash.raw",
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"/usr/share/edk2.git/aarch64/vars-template-pflash.raw" ]
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| arch ->
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error (f_"don't know how to convert UEFI guests for architecture %s")
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guest_arch in
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let rec loop = function
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| [] ->
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error (f_"cannot find firmware for UEFI guests.\n\nYou probably need to install OVMF, or Gerd's firmware repo (https://www.kraxel.org/repos/), or AAVMF (if using aarch64)")
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| ((code, vars_template) as ret) :: rest ->
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if Sys.file_exists code && Sys.file_exists vars_template then ret
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else loop rest
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in
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loop files
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let compare_app2_versions app1 app2 =
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let i = compare app1.Guestfs.app2_epoch app2.Guestfs.app2_epoch in
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if i <> 0 then i
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else (
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let i =
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compare_version app1.Guestfs.app2_version app2.Guestfs.app2_version in
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if i <> 0 then i
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else
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compare_version app1.Guestfs.app2_release app2.Guestfs.app2_release
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)
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let remove_duplicates xs =
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let h = Hashtbl.create (List.length xs) in
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let rec loop = function
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| [] -> []
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| x :: xs when Hashtbl.mem h x -> xs
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| x :: xs -> Hashtbl.add h x true; x :: loop xs
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in
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loop xs
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