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This commit deprecates luks-open/luks-open-ro/luks-close for the more generic sounding names cryptsetup-open/cryptsetup-close, which also correspond directly to the cryptsetup commands. The optional cryptsetup-open readonly flag is used to replace the functionality of luks-open-ro. The optional cryptsetup-open crypttype parameter can be used to select the type (corresponding to cryptsetup open --type), which allows us to open BitLocker-encrypted disks with no extra effort. As a convenience the crypttype parameter may be omitted, and libguestfs will use a heuristic (based on vfs-type output) to try to determine the correct type to use. The deprecated functions and the new functions are all (re-)written in OCaml. There is no new test here, unfortunately. It would be nice to test Windows BitLocker support in this new API, however the Linux tools do not support creating BitLocker disks, and while it is possible to create one under Windows, the smallest compressed disk I could create is 37M because of a mixture of the minimum support size for BitLocker disks and the fact that encrypted parts of NTFS cannot be compressed. Also synchronise with common module.
This program generates a large amount of code and documentation for all the daemon actions. To add a new action there are only two files you need to change, 'actions_*.ml' to describe the interface, and daemon/<somefile>.c to write the implementation. After editing these files, build it (make -C generator) to regenerate all the output files. 'make' will rerun this automatically when necessary. IMPORTANT: This program should NOT print any warnings at compile time or run time. If it prints warnings, you should treat them as errors. OCaml tips: (1) In emacs, install tuareg-mode to display and format OCaml code correctly. 'vim' comes with a good OCaml editing mode by default. (2) Read the resources at http://ocaml.org/learn/ (3) A module called 'Foo' is defined in one or two files called 'foo.mli' and 'foo.ml' (NB: lowercase first letter). The *.mli file, if present, defines the public interface for the module. The *.ml file is the implementation. If the *.mli file is missing then everything is exported. Some notable files in this directory: actions_*.ml The libguestfs API. proc_nr.ml Procedure numbers associated with each API. structs.ml Structures returned by the API. c.ml Generate C API. <lang>.ml Generate bindings for <lang>. main.ml The main generator program. Note about long descriptions: When referring to another action, use the format C<guestfs_other> (ie. the full name of the C function). This will be replaced as appropriate in other language bindings. Apart from that, long descriptions are just perldoc paragraphs. Note about extending functions: In general you cannot change the name, number of required arguments or type of required arguments of a function, since this would break backwards compatibility. You may add another optional argument, *if* the function has >= 1 optional arguments already. Add it at the end of the list. You may add optional arguments to a function that doesn't have any. However you *must* set the once_had_no_optargs flag to true, so that the relevant backwards compatibility bindings can be added.