2 * Copyright (c) 2017 Netflix, Inc.
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33 * "Linux compatible" efivar-dp.h header. At the moment, it's really a
34 * very thin, minimal interface.
38 * Generic EFI_DEVICE_PATH, spelled the Linux way. We use this
39 * interface to the outside world and type-pun to the EFI EDK2 code
40 * we use to implement it.
46 } __packed efidp_header;
48 /* NB: Linux has shadow types for all dp type */
53 typedef efidp_data *efidp;
54 typedef const efidp_data *const_efidp;
56 /** format a device path into UEFI standard conforming output.
58 * NB: FreeBSD's implementation is taken from EDK2, while Linux's
59 * was hand-rolled. There may be differences as a result.
61 ssize_t efidp_format_device_path(char *buf, size_t len, const_efidp dp,
63 ssize_t efidp_format_device_path_node(char *buf, size_t len, const_efidp dp);
64 ssize_t efidp_parse_device_path(char *path, efidp out, size_t max);
65 char * efidp_extract_file_path(const_efidp dp);
67 size_t efidp_size(const_efidp);
69 int efivar_device_path_to_unix_path(const_efidp dp, char **dev, char **relpath, char **abspath);
70 int efivar_unix_path_to_device_path(const char *path, efidp *dp);
72 #endif /* _EFIVAR_DP_H_ */