1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 #pragma once
3
4 #include <inttypes.h>
5 #include <stdbool.h>
6 #include <sys/types.h>
7
8 #include "sd-id128.h"
9
10 #include "hashmap.h"
11 #include "macro.h"
12
13 /* Forward declare this type so that the headers below can use it */
14 typedef struct Resource Resource;
15
16 #include "sysupdate-instance.h"
17
18 typedef enum ResourceType {
19 RESOURCE_URL_FILE,
20 RESOURCE_URL_TAR,
21 RESOURCE_TAR,
22 RESOURCE_PARTITION,
23 RESOURCE_REGULAR_FILE,
24 RESOURCE_DIRECTORY,
25 RESOURCE_SUBVOLUME,
26 _RESOURCE_TYPE_MAX,
27 _RESOURCE_TYPE_INVALID = -EINVAL,
28 } ResourceType;
29
RESOURCE_IS_SOURCE(ResourceType t)30 static inline bool RESOURCE_IS_SOURCE(ResourceType t) {
31 return IN_SET(t,
32 RESOURCE_URL_FILE,
33 RESOURCE_URL_TAR,
34 RESOURCE_TAR,
35 RESOURCE_REGULAR_FILE,
36 RESOURCE_DIRECTORY,
37 RESOURCE_SUBVOLUME);
38 }
39
RESOURCE_IS_TARGET(ResourceType t)40 static inline bool RESOURCE_IS_TARGET(ResourceType t) {
41 return IN_SET(t,
42 RESOURCE_PARTITION,
43 RESOURCE_REGULAR_FILE,
44 RESOURCE_DIRECTORY,
45 RESOURCE_SUBVOLUME);
46 }
47
48 /* Returns true for all resources that deal with file system objects, i.e. where we operate on top of the
49 * file system layer, instead of below. */
RESOURCE_IS_FILESYSTEM(ResourceType t)50 static inline bool RESOURCE_IS_FILESYSTEM(ResourceType t) {
51 return IN_SET(t,
52 RESOURCE_TAR,
53 RESOURCE_REGULAR_FILE,
54 RESOURCE_DIRECTORY,
55 RESOURCE_SUBVOLUME);
56 }
57
RESOURCE_IS_TAR(ResourceType t)58 static inline bool RESOURCE_IS_TAR(ResourceType t) {
59 return IN_SET(t,
60 RESOURCE_TAR,
61 RESOURCE_URL_TAR);
62 }
63
RESOURCE_IS_URL(ResourceType t)64 static inline bool RESOURCE_IS_URL(ResourceType t) {
65 return IN_SET(t,
66 RESOURCE_URL_TAR,
67 RESOURCE_URL_FILE);
68 }
69
70 struct Resource {
71 ResourceType type;
72
73 /* Where to look for instances, and what to match precisely */
74 char *path;
75 bool path_auto; /* automatically find root path (only available if target resource, not source resource) */
76 char **patterns;
77 sd_id128_t partition_type;
78 bool partition_type_set;
79
80 /* All instances of this resource we found */
81 Instance **instances;
82 size_t n_instances;
83
84 /* If this is a partition resource (RESOURCE_PARTITION), then how many partition slots are currently unassigned, that we can use */
85 size_t n_empty;
86 };
87
88 void resource_destroy(Resource *rr);
89
90 int resource_load_instances(Resource *rr, bool verify, Hashmap **web_cache);
91
92 Instance* resource_find_instance(Resource *rr, const char *version);
93
94 int resource_resolve_path(Resource *rr, const char *root, const char *node);
95
96 ResourceType resource_type_from_string(const char *s) _pure_;
97 const char *resource_type_to_string(ResourceType t) _const_;
98