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authorLennart Poettering <lennart@poettering.net>2012-10-18 03:29:19 +0200
committerLennart Poettering <lennart@poettering.net>2012-10-18 03:35:18 +0200
commit3c1668da6202f1ead3d4d3981b89e9da1a0e98e3 (patch)
treed4e2785f1dac02c19797373bb4342354e1958e9d /src/journal/journal-authenticate.c
parent86b2e20a5e5abf222fb81edcb5d58d012e35cbaa (diff)
journal: add ability to list values a specified field can take in all entries of the journal
The new 'unique' API allows listing all unique field values that a field specified by a field name can take in all entries of the journal. This allows answering queries such as "What units logged to the journal?", "What hosts have logged into the journal?", "Which boot IDs have logged into the journal?". Ultimately this allows implementation of tools similar to lastlog based on journal data. Note that listing these field values will not work for journal files created with older journald, as the field values are not indexed in older files.
Diffstat (limited to 'src/journal/journal-authenticate.c')
-rw-r--r--src/journal/journal-authenticate.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/journal/journal-authenticate.c b/src/journal/journal-authenticate.c
index 674f81218f..64bf96874e 100644
--- a/src/journal/journal-authenticate.c
+++ b/src/journal/journal-authenticate.c
@@ -260,6 +260,12 @@ int journal_file_hmac_put_object(JournalFile *f, int type, Object *o, uint64_t p
gcry_md_write(f->hmac, o->data.payload, le64toh(o->object.size) - offsetof(DataObject, payload));
break;
+ case OBJECT_FIELD:
+ /* Same here */
+ gcry_md_write(f->hmac, &o->field.hash, sizeof(o->field.hash));
+ gcry_md_write(f->hmac, o->field.payload, le64toh(o->object.size) - offsetof(FieldObject, payload));
+ break;
+
case OBJECT_ENTRY:
/* All */
gcry_md_write(f->hmac, &o->entry.seqnum, le64toh(o->object.size) - offsetof(EntryObject, seqnum));
@@ -484,7 +490,6 @@ int journal_file_append_first_tag(JournalFile *f) {
return 0;
}
-
int journal_file_parse_verification_key(JournalFile *f, const char *key) {
uint8_t *seed;
size_t seed_size, c;