shaba/systemd
1
0
Fork 0
mirror of https://github.com/systemd/systemd.git synced 2025-03-19 22:50:17 +03:00
Code

dissect: add helper functions to use VeritySettings in hash/set

Browse Source
This commit is contained in:
Luca Boccassi 2025-02-18 14:44:44 +00:00
parent cf4deeaf1e
commit b7a2f8715e
2 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
src/shared/dissect-image.c
View File

@ -3172,6 +3172,33 @@ void verity_settings_done(VeritySettings *v) {
v->data_path = mfree(v->data_path);
}
VeritySettings* verity_settings_free(VeritySettings *v) {
if (!v)
return NULL;
verity_settings_done(v);
return mfree(v);
}
void verity_settings_hash_func(const VeritySettings *s, struct siphash *state) {
assert(s);
siphash24_compress_typesafe(s->root_hash_size, state);
siphash24_compress(s->root_hash, s->root_hash_size, state);
}
int verity_settings_compare_func(const VeritySettings *x, const VeritySettings *y) {
int r;
r = CMP(x->root_hash_size, y->root_hash_size);
if (r != 0)
return r;
return memcmp(x->root_hash, y->root_hash, x->root_hash_size);
}
DEFINE_HASH_OPS_WITH_VALUE_DESTRUCTOR(verity_settings_hash_ops, VeritySettings, verity_settings_hash_func, verity_settings_compare_func, VeritySettings, verity_settings_free);
int verity_settings_load(
VeritySettings *verity,
const char *image,

6
src/shared/dissect-image.h
View File

@ -211,6 +211,12 @@ static inline bool verity_settings_set(const VeritySettings *settings) {
}
void verity_settings_done(VeritySettings *verity);
VeritySettings* verity_settings_free(VeritySettings *v);
void verity_settings_hash_func(const VeritySettings *s, struct siphash *state);
int verity_settings_compare_func(const VeritySettings *x, const VeritySettings *y);
DEFINE_TRIVIAL_CLEANUP_FUNC(VeritySettings*, verity_settings_free);
extern const struct hash_ops verity_settings_hash_ops;
static inline bool verity_settings_data_covers(const VeritySettings *verity, PartitionDesignator d) {
/* Returns true if the verity settings contain sufficient information to cover the specified partition */