Philip Withnall
fdc661116d
If we allow target instances to be partial or pending, we can build on top of this to allow updates to be split into two phases: ‘acquire’ (which takes an available source instance and copies it (temporarily partial) to a pending target instance; and ‘install’ (which takes a pending target instance and installs it as an installed target instance). This commit introduces a file/directory and partition prefix naming scheme to identify partial and pending instances. Signed-off-by: Philip Withnall <pwithnall@gnome.org> Helps: https://github.com/systemd/systemd/issues/34814
61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include "sd-id128.h"
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#include "sysupdate-forward.h"
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#include "sysupdate-partition.h"
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typedef struct InstanceMetadata {
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/* Various bits of metadata for each instance, that is either derived from the filename/GPT label or
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* from metadata of the file/partition itself */
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char *version;
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sd_id128_t partition_uuid;
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bool partition_uuid_set;
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uint64_t partition_flags; /* GPT partition flags */
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bool partition_flags_set;
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usec_t mtime;
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mode_t mode;
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uint64_t size; /* uncompressed size of the file */
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uint64_t tries_done, tries_left; /* for boot assessment counters */
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int no_auto;
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int read_only;
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int growfs;
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uint8_t sha256sum[32]; /* SHA256 sum of the download (i.e. compressed) file */
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bool sha256sum_set;
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} InstanceMetadata;
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#define INSTANCE_METADATA_NULL \
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{ \
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.mtime = USEC_INFINITY, \
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.mode = MODE_INVALID, \
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.size = UINT64_MAX, \
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.tries_done = UINT64_MAX, \
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.tries_left = UINT64_MAX, \
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.no_auto = -1, \
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.read_only = -1, \
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.growfs = -1, \
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}
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struct Instance {
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/* A pointer back to the resource this belongs to */
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Resource *resource;
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/* Metadata of this version */
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InstanceMetadata metadata;
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/* Where we found the instance */
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char *path; /* includes the `.sysupdate.partial.` (etc.) prefix, if applicable */
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PartitionInfo partition_info;
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bool is_partial;
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bool is_pending;
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};
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void instance_metadata_destroy(InstanceMetadata *m);
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int instance_new(Resource *rr, const char *path, const InstanceMetadata *f, Instance **ret);
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Instance *instance_free(Instance *i);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Instance*, instance_free);
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