Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 129 insertions, 0 deletions

diff --git a/src/shared/bootspec.h b/src/shared/bootspec.h
new file mode 100644
index 0000000..ddd149e
--- /dev/null
+++ b/src/shared/bootspec.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#pragma once
+
+#include <errno.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "json.h"
+#include "set.h"
+#include "string-util.h"
+
+typedef enum BootEntryType {
+        BOOT_ENTRY_CONF,        /* Boot Loader Specification Type #1 entries: *.conf files */
+        BOOT_ENTRY_UNIFIED,     /* Boot Loader Specification Type #2 entries: *.efi files */
+        BOOT_ENTRY_LOADER,      /* Additional entries augmented from LoaderEntries EFI variable (regular entries) */
+        BOOT_ENTRY_LOADER_AUTO, /* Additional entries augmented from LoaderEntries EFI variable (special "automatic" entries) */
+        _BOOT_ENTRY_TYPE_MAX,
+        _BOOT_ENTRY_TYPE_INVALID = -EINVAL,
+} BootEntryType;
+
+typedef struct BootEntry {
+        BootEntryType type;
+        bool reported_by_loader;
+        char *id;       /* This is the file basename (including extension!) */
+        char *id_old;   /* Old-style ID, for deduplication purposes. */
+        char *path;     /* This is the full path to the drop-in file */
+        char *root;     /* The root path in which the drop-in was found, i.e. to which 'kernel', 'efi' and 'initrd' are relative */
+        char *title;
+        char *show_title;
+        char *sort_key;
+        char *version;
+        char *machine_id;
+        char *architecture;
+        char **options;
+        char *kernel;        /* linux is #defined to 1, yikes! */
+        char *efi;
+        char **initrd;
+        char *device_tree;
+        char **device_tree_overlay;
+        unsigned tries_left;
+        unsigned tries_done;
+} BootEntry;
+
+#define BOOT_ENTRY_INIT(t)                      \
+        {                                       \
+                .type = (t),                    \
+                .tries_left = UINT_MAX,         \
+                .tries_done = UINT_MAX,         \
+        }
+
+typedef struct BootConfig {
+        char *default_pattern;
+        char *timeout;
+        char *editor;
+        char *auto_entries;
+        char *auto_firmware;
+        char *console_mode;
+        char *beep;
+
+        char *entry_oneshot;
+        char *entry_default;
+        char *entry_selected;
+
+        BootEntry *entries;
+        size_t n_entries;
+
+        ssize_t default_entry;
+        ssize_t selected_entry;
+
+        Set *inodes_seen;
+} BootConfig;
+
+#define BOOT_CONFIG_NULL              \
+        {                             \
+                .default_entry = -1,  \
+                .selected_entry = -1, \
+        }
+
+const char* boot_entry_type_to_string(BootEntryType);
+const char* boot_entry_type_json_to_string(BootEntryType);
+
+BootEntry* boot_config_find_entry(BootConfig *config, const char *id);
+
+static inline const BootEntry* boot_config_default_entry(const BootConfig *config) {
+        assert(config);
+
+        if (config->default_entry < 0)
+                return NULL;
+
+        assert((size_t) config->default_entry < config->n_entries);
+        return config->entries + config->default_entry;
+}
+
+void boot_config_free(BootConfig *config);
+
+int boot_loader_read_conf(BootConfig *config, FILE *file, const char *path);
+
+int boot_config_load_type1(
+                BootConfig *config,
+                FILE *f,
+                const char *root,
+                const char *dir,
+                const char *id);
+
+int boot_config_finalize(BootConfig *config);
+int boot_config_load(BootConfig *config, const char *esp_path, const char *xbootldr_path);
+int boot_config_load_auto(BootConfig *config, const char *override_esp_path, const char *override_xbootldr_path);
+int boot_config_augment_from_loader(BootConfig *config, char **list, bool only_auto);
+
+int boot_config_select_special_entries(BootConfig *config, bool skip_efivars);
+
+static inline const char* boot_entry_title(const BootEntry *entry) {
+        assert(entry);
+
+        return ASSERT_PTR(entry->show_title ?: entry->title ?: entry->id);
+}
+
+int show_boot_entry(
+                const BootEntry *e,
+                bool show_as_default,
+                bool show_as_selected,
+                bool show_reported);
+int show_boot_entries(
+                const BootConfig *config,
+                JsonFormatFlags json_format);
+
+int boot_filename_extract_tries(const char *fname, char **ret_stripped, unsigned *ret_tries_left, unsigned *ret_tries_done);