Lennart Poettering
a81fe93e95
This reworks the image discovery logic, and conceptually allows DDIs
that are both confext and sysext to exist. Previously we'd only extract
one type of exension data from a DDI, with this we allow to extract both
if both exist.
This doesn't add support for true "multi-modal" DDIs, that qualify as
various things at once, it just lays some ground work that ensures we at
least can dissect such images.
This reworks 484d26dac1 quite a bit.
This changes systemd-dissect's JSON output, but given the
version with the fields it changes/dops has never been released (as the
above patch was merged post-v254) this shouldn't be an issue.
60 lines
3.3 KiB
C
60 lines
3.3 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <stdbool.h>
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#include <stdio.h>
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#include "time-util.h"
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typedef enum ImageClass {
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IMAGE_MACHINE,
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IMAGE_PORTABLE,
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IMAGE_SYSEXT,
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_IMAGE_CLASS_EXTENSION_FIRST = IMAGE_SYSEXT, /* First "extension" image type, so that we can easily generically iterate through them */
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IMAGE_CONFEXT,
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_IMAGE_CLASS_EXTENSION_LAST = IMAGE_CONFEXT, /* Last "extension image type */
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_IMAGE_CLASS_MAX,
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_IMAGE_CLASS_INVALID = -EINVAL,
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} ImageClass;
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const char* image_class_to_string(ImageClass cl) _const_;
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ImageClass image_class_from_string(const char *s) _pure_;
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/* The *_extension_release flavours will look for /usr/lib/extension-release/extension-release.NAME
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* for sysext images and for /etc/extension-release.d/extension-release.NAME for confext images
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* in accordance with the OS extension specification, rather than for /usr/lib/ or /etc/os-release. */
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bool image_name_is_valid(const char *s) _pure_;
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int path_is_extension_tree(ImageClass image_class, const char *path, const char *extension, bool relax_extension_release_check);
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static inline int path_is_os_tree(const char *path) {
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return path_is_extension_tree(_IMAGE_CLASS_INVALID, path, NULL, false);
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}
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int open_extension_release(const char *root, ImageClass image_class, const char *extension, bool relax_extension_release_check, char **ret_path, int *ret_fd);
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int open_extension_release_at(int rfd, ImageClass image_class, const char *extension, bool relax_extension_release_check, char **ret_path, int *ret_fd);
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int open_os_release(const char *root, char **ret_path, int *ret_fd);
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int open_os_release_at(int rfd, char **ret_path, int *ret_fd);
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int parse_extension_release_sentinel(const char *root, ImageClass image_class, bool relax_extension_release_check, const char *extension, ...) _sentinel_;
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#define parse_extension_release(root, image_class, extension, relax_extension_release_check, ...) \
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parse_extension_release_sentinel(root, image_class, relax_extension_release_check, extension, __VA_ARGS__, NULL)
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#define parse_os_release(root, ...) \
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parse_extension_release_sentinel(root, _IMAGE_CLASS_INVALID, false, NULL, __VA_ARGS__, NULL)
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int parse_extension_release_at_sentinel(int rfd, ImageClass image_class, bool relax_extension_release_check, const char *extension, ...) _sentinel_;
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#define parse_extension_release_at(rfd, image_class, extension, relax_extension_release_check, ...) \
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parse_extension_release_at_sentinel(rfd, image_class, relax_extension_release_check, extension, __VA_ARGS__, NULL)
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#define parse_os_release_at(rfd, ...) \
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parse_extension_release_at_sentinel(rfd, _IMAGE_CLASS_INVALID, false, NULL, __VA_ARGS__, NULL)
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int load_extension_release_pairs(const char *root, ImageClass image_class, const char *extension, bool relax_extension_release_check, char ***ret);
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static inline int load_os_release_pairs(const char *root, char ***ret) {
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return load_extension_release_pairs(root, _IMAGE_CLASS_INVALID, NULL, false, ret);
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}
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int load_os_release_pairs_with_prefix(const char *root, const char *prefix, char ***ret);
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int os_release_support_ended(const char *support_end, bool quiet, usec_t *ret_eol);
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const char *os_release_pretty_name(const char *pretty_name, const char *name);
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