Author: imp Date: Tue Jun 4 18:36:07 2019 New Revision: 348658 URL: https://svnweb.freebsd.org/changeset/base/348658
Log: Introduce efi_devpath_same_disk This is like efi_devpath_match, but allows differing device media paths. Those just specify the partition information. Differential Revision: https://reviews.freebsd.org/D20513 Modified: head/stand/efi/include/efilib.h head/stand/efi/libefi/devpath.c Modified: head/stand/efi/include/efilib.h ============================================================================== --- head/stand/efi/include/efilib.h Tue Jun 4 18:34:05 2019 (r348657) +++ head/stand/efi/include/efilib.h Tue Jun 4 18:36:07 2019 (r348658) @@ -90,6 +90,7 @@ bool efi_devpath_match_node(EFI_DEVICE_PATH *, EFI_DEV bool efi_devpath_is_prefix(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *); CHAR16 *efi_devpath_name(EFI_DEVICE_PATH *); void efi_free_devpath_name(CHAR16 *); +bool efi_devpath_same_disk(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *); EFI_DEVICE_PATH *efi_devpath_to_media_path(EFI_DEVICE_PATH *); UINTN efi_devpath_length(EFI_DEVICE_PATH *); EFI_DEVICE_PATH *efi_name_to_devpath(const char *path); Modified: head/stand/efi/libefi/devpath.c ============================================================================== --- head/stand/efi/libefi/devpath.c Tue Jun 4 18:34:05 2019 (r348657) +++ head/stand/efi/libefi/devpath.c Tue Jun 4 18:36:07 2019 (r348658) @@ -197,14 +197,19 @@ efi_devpath_match_node(EFI_DEVICE_PATH *devpath1, EFI_ return (true); } -bool -efi_devpath_match(EFI_DEVICE_PATH *devpath1, EFI_DEVICE_PATH *devpath2) +static bool +_efi_devpath_match(EFI_DEVICE_PATH *devpath1, EFI_DEVICE_PATH *devpath2, + bool ignore_media) { if (devpath1 == NULL || devpath2 == NULL) return (false); while (true) { + if (ignore_media && + IsDevicePathType(devpath1, MEDIA_DEVICE_PATH) && + IsDevicePathType(devpath2, MEDIA_DEVICE_PATH)) + return (true); if (!efi_devpath_match_node(devpath1, devpath2)) return false; if (IsDevicePathEnd(devpath1)) @@ -213,6 +218,25 @@ efi_devpath_match(EFI_DEVICE_PATH *devpath1, EFI_DEVIC devpath2 = NextDevicePathNode(devpath2); } return (true); +} +/* + * Are two devpaths identical? + */ +bool +efi_devpath_match(EFI_DEVICE_PATH *devpath1, EFI_DEVICE_PATH *devpath2) +{ + return _efi_devpath_match(devpath1, devpath2, false); +} + +/* + * Like efi_devpath_match, but stops at when we hit the media device + * path node that specifies the partition information. If we match + * up to that point, then we're on the same disk. + */ +bool +efi_devpath_same_disk(EFI_DEVICE_PATH *devpath1, EFI_DEVICE_PATH *devpath2) +{ + return _efi_devpath_match(devpath1, devpath2, true); } bool _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
