git.ozlabs.org Git - petitboot/blob - discover/device-handler.h

   1 #ifndef _DEVICE_HANDLER_H
   2 #define _DEVICE_HANDLER_H
   3
   4 #include <stdbool.h>
   5
   6 #include <list/list.h>
   7
   8 struct device_handler;
   9 struct discover_device;
  10 struct discover_server;
  11 struct boot_option;
  12 struct boot_command;
  13 struct event;
  14 struct device;
  15 struct waitset;
  16
  17 enum conf_method {
  18         CONF_METHOD_LOCAL_FILE, /* discover by looking at local files on this
  19                                    block device */
  20
  21         CONF_METHOD_DHCP,       /* configuration from a DHCP response */
  22
  23         CONF_METHOD_UNKNOWN = -1,
  24 };
  25
  26
  27 struct discover_device {
  28         struct device           *device;
  29
  30         char                    **links;
  31         int                     n_links;
  32
  33         const char              *uuid;
  34         const char              *label;
  35
  36         char                    *mount_path;
  37         const char              *device_path;
  38         bool                    mounted;
  39         bool                    unmount;
  40
  41         bool                    notified;
  42
  43         struct list             boot_options;
  44         struct list             params;
  45 };
  46
  47 struct discover_boot_option {
  48         struct parser           *source;
  49         struct discover_device  *device;
  50         struct boot_option      *option;
  51         struct list_item        list;
  52
  53         struct resource         *boot_image;
  54         struct resource         *initrd;
  55         struct resource         *dtb;
  56         struct resource         *icon;
  57 };
  58
  59
  60 struct discover_context {
  61         struct parser           *parser;
  62         struct event            *event;
  63         struct discover_device  *device;
  64         struct list             boot_options;
  65         struct pb_url           *conf_url;
  66         enum conf_method        method;
  67 };
  68
  69 struct device_handler *device_handler_init(struct discover_server *server,
  70                 struct waitset *waitset, int dry_run);
  71
  72 void device_handler_destroy(struct device_handler *devices);
  73
  74 int device_handler_get_device_count(const struct device_handler *handler);
  75 const struct discover_device *device_handler_get_device(
  76         const struct device_handler *handler, unsigned int index);
  77
  78 struct discover_device *discover_device_create(struct device_handler *handler,
  79                 const char *id);
  80 void device_handler_add_device(struct device_handler *handler,
  81                 struct discover_device *device);
  82 int device_handler_discover(struct device_handler *handler,
  83                 struct discover_device *dev, enum conf_method method);
  84 int device_handler_conf(struct device_handler *handler,
  85                 struct discover_device *dev, struct pb_url *url,
  86                 enum conf_method method);
  87 void device_handler_remove(struct device_handler *handler,
  88                 struct discover_device *device);
  89
  90 struct discover_context *device_handler_discover_context_create(
  91                 struct device_handler *handler,
  92                 struct discover_device *device);
  93 void device_handler_discover_context_commit(struct device_handler *handler,
  94                 struct discover_context *ctx);
  95
  96 struct discover_boot_option *discover_boot_option_create(
  97                 struct discover_context *ctx,
  98                 struct discover_device *dev);
  99 void discover_context_add_boot_option(struct discover_context *ctx,
 100                 struct discover_boot_option *opt);
 101
 102 int device_handler_user_event(struct device_handler *handler,
 103                                 struct event *event);
 104
 105 struct discover_device *device_lookup_by_name(struct device_handler *handler,
 106                 const char *name);
 107 struct discover_device *device_lookup_by_uuid(struct device_handler *handler,
 108                 const char *uuid);
 109 struct discover_device *device_lookup_by_label(struct device_handler *handler,
 110                 const char *label);
 111 struct discover_device *device_lookup_by_id(struct device_handler *handler,
 112                 const char *id);
 113 struct discover_device *device_lookup_by_serial(
 114                 struct device_handler *device_handler,
 115                 const char *serial);
 116
 117 void discover_device_set_param(struct discover_device *device,
 118                 const char *name, const char *value);
 119 const char *discover_device_get_param(struct discover_device *device,
 120                 const char *name);
 121
 122 void device_handler_boot(struct device_handler *handler,
 123                 struct boot_command *cmd);
 124 void device_handler_cancel_default(struct device_handler *handler);
 125
 126 #endif /* _DEVICE_HANDLER_H */