additional recursive operations in afc protocol

[emonti]

I did some reversing in the afc server binary for iOS 6.x and 7.x as a result of an issue opened up on the ruby idevice bindings -- (adamely/idevice#1) -- this had to do with recursive AFC operations.

There appear to be several AFC_OP_ constants that are not defined/implemented in libimobiledevice, but present in the afc protocol (at least the versions I looked at) -- wonder if these were intentionally passed over for some reason, or if not... would it be worth adding them?

using the same basic naming convention and comments format as in src/afc.h

AFC_OP_PATH_CONTENTS_SIZE      = 0x00000021, /* GetSizeOfPathContents */
AFC_OP_REMOVE_PATH_RECURSIVELY = 0x00000022, /* RemovePathAndContents */
AFC_OP_OPENDIR         = 0x00000023,    /* DirectoryEnumeratorRefOpen */
AFC_OP_OPENDIR_RESULT  = 0x00000024,    /* DirectoryEnumeratorRefOpenResult */
AFC_OP_READDIR         = 0x00000025,    /* DirectoryEnumeratorRefRead */
AFC_OP_CLOSEDIR        = 0x00000026,    /* DirectoryEnumeratorRefClose */

Note also: there's these that were also apparently not added:

AFC_OP_FILE_HASH       = 0x0000001D,    /* GetFileHash */

...

AFC_OP_FILE_HASH_RANGE = 0x0000001F,    /* GetFileHashWithRange */
AFC_OP_FILE_SET_IMMUTABLE_HINT = 0x00000020, /* FileRefSetImmutableHint */

[FunkyM]

We're aware of the new operations, simply not added/implemented them yet.
Furthermore one needs to ensure that invocations on <= iOS 5 are properly handled.
Patches welcome.

[FunkyM]

RemovePathAndContents is now implemented in git master.
The other operations are not in the scope of this ticket request but will probably be also implemented soon. If needed please create a ticket for these.