sysupdate: add new component "sysupdate"

2022-03-19 00:13:55 +01:00
parent 40f35786b0
commit 43cc7a3ef4
21 changed files with 4925 additions and 0 deletions
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include "sd-id128.h"
+
+#include "fs-util.h"
+#include "time-util.h"
+
+typedef struct InstanceMetadata InstanceMetadata;
+typedef struct Instance Instance;
+
+#include "sysupdate-resource.h"
+#include "sysupdate-partition.h"
+
+struct InstanceMetadata {
+        /* Various bits of metadata for each instance, that is either derived from the filename/GPT label or
+         * from metadata of the file/partition itself */
+        char *version;
+        sd_id128_t partition_uuid;
+        bool partition_uuid_set;
+        uint64_t partition_flags;          /* GPT partition flags */
+        bool partition_flags_set;
+        usec_t mtime;
+        mode_t mode;
+        uint64_t size;                     /* uncompressed size of the file */
+        uint64_t tries_done, tries_left;   /* for boot assessment counters */
+        int no_auto;
+        int read_only;
+        int growfs;
+        uint8_t sha256sum[32];             /* SHA256 sum of the download (i.e. compressed) file */
+        bool sha256sum_set;
+};
+
+#define INSTANCE_METADATA_NULL                  \
+        {                                       \
+                .mtime = USEC_INFINITY,         \
+                .mode = MODE_INVALID,           \
+                .size = UINT64_MAX,             \
+                .tries_done = UINT64_MAX,       \
+                .tries_left = UINT64_MAX,       \
+                .no_auto = -1,                  \
+                .read_only = -1,                \
+                .growfs = -1,                   \
+        }
+
+struct Instance {
+        /* A pointer back to the resource this belongs to */
+        Resource *resource;
+
+        /* Metadata of this version */
+        InstanceMetadata metadata;
+
+        /* Where we found the instance */
+        char *path;
+        PartitionInfo partition_info;
+};
+
+void instance_metadata_destroy(InstanceMetadata *m);
+
+int instance_new(Resource *rr, const char *path, const InstanceMetadata *f, Instance **ret);
+Instance *instance_free(Instance *i);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(Instance*, instance_free);