nspawn: split out mount related functions into a new nspawn-mount.c file

src/nspawn/nspawn.h

@@ -26,32 +26,6 @@
 
 #include "list.h"
 
-typedef enum VolatileMode {
-        VOLATILE_NO,
-        VOLATILE_YES,
-        VOLATILE_STATE,
-        _VOLATILE_MODE_MAX,
-        _VOLATILE_MODE_INVALID = -1
-} VolatileMode;
-
-typedef enum CustomMountType {
-        CUSTOM_MOUNT_BIND,
-        CUSTOM_MOUNT_TMPFS,
-        CUSTOM_MOUNT_OVERLAY,
-        _CUSTOM_MOUNT_TYPE_MAX,
-        _CUSTOM_MOUNT_TYPE_INVALID = -1
-} CustomMountType;
-
-typedef struct CustomMount {
-        CustomMountType type;
-        bool read_only;
-        char *source; /* for overlayfs this is the upper directory */
-        char *destination;
-        char *options;
-        char *work_dir;
-        char **lower;
-} CustomMount;
-
 typedef struct ExposePort {
         int protocol;
         uint16_t host_port;
@@ -59,11 +33,5 @@ typedef struct ExposePort {
         LIST_FIELDS(struct ExposePort, ports);
 } ExposePort;
 
-void custom_mount_free_all(CustomMount *l, unsigned n);
-int bind_mount_parse(CustomMount **l, unsigned *n, const char *s, bool read_only);
-int tmpfs_mount_parse(CustomMount **l, unsigned *n, const char *s);
-
 void expose_port_free_all(ExposePort *p);
 int expose_port_parse(ExposePort **l, const char *s);
-
-VolatileMode volatile_mode_from_string(const char *s);