#include "journal-def.h"
#include "util.h"
#include "mmap-cache.h"
+#include "hashmap.h"
typedef struct JournalMetrics {
uint64_t max_use;
uint64_t keep_free;
} JournalMetrics;
+typedef enum direction {
+ DIRECTION_UP,
+ DIRECTION_DOWN
+} direction_t;
+
typedef struct JournalFile {
int fd;
- char *path;
- struct stat last_stat;
+
mode_t mode;
int flags;
int prot;
- bool writable;
- bool compress;
- bool authenticate;
+ bool writable:1;
+ bool compress:1;
+ bool seal:1;
- bool tail_entry_monotonic_valid;
+ bool tail_entry_monotonic_valid:1;
+
+ direction_t last_direction;
+
+ char *path;
+ struct stat last_stat;
Header *header;
HashItem *data_hash_table;
JournalMetrics metrics;
MMapCache *mmap;
+ Hashmap *chain_cache;
+
#ifdef HAVE_XZ
void *compress_buffer;
uint64_t compress_buffer_size;
gcry_md_hd_t hmac;
bool hmac_running;
- FSPRGHeader *fsprg_header;
- size_t fsprg_size;
+ FSSHeader *fss_file;
+ size_t fss_file_size;
+
+ uint64_t fss_start_usec;
+ uint64_t fss_interval_usec;
+
+ void *fsprg_state;
+ size_t fsprg_state_size;
+
+ void *fsprg_seed;
+ size_t fsprg_seed_size;
#endif
} JournalFile;
-typedef enum direction {
- DIRECTION_UP,
- DIRECTION_DOWN
-} direction_t;
-
int journal_file_open(
const char *fname,
int flags,
mode_t mode,
bool compress,
- bool authenticate,
+ bool seal,
JournalMetrics *metrics,
- MMapCache *mmap,
+ MMapCache *mmap_cache,
JournalFile *template,
JournalFile **ret);
+int journal_file_set_offline(JournalFile *f);
void journal_file_close(JournalFile *j);
int journal_file_open_reliably(
int flags,
mode_t mode,
bool compress,
- bool authenticate,
+ bool seal,
JournalMetrics *metrics,
- MMapCache *mmap,
+ MMapCache *mmap_cache,
JournalFile *template,
JournalFile **ret);
+#define ALIGN64(x) (((x) + 7ULL) & ~7ULL)
+#define VALID64(x) (((x) & 7ULL) == 0ULL)
+
+static inline bool VALID_REALTIME(uint64_t u) {
+ /* This considers timestamps until the year 3112 valid. That should be plenty room... */
+ return u > 0 && u < (1ULL << 55);
+}
+
+static inline bool VALID_MONOTONIC(uint64_t u) {
+ /* This considers timestamps until 1142 years of runtime valid. */
+ return u < (1ULL << 55);
+}
+
+static inline bool VALID_EPOCH(uint64_t u) {
+ /* This allows changing the key for 1142 years, every usec. */
+ return u < (1ULL << 55);
+}
+
+#define JOURNAL_HEADER_CONTAINS(h, field) \
+ (le64toh((h)->header_size) >= offsetof(Header, field) + sizeof((h)->field))
+
+#define JOURNAL_HEADER_SEALED(h) \
+ (!!(le32toh((h)->compatible_flags) & HEADER_COMPATIBLE_SEALED))
+
+#define JOURNAL_HEADER_COMPRESSED(h) \
+ (!!(le32toh((h)->incompatible_flags) & HEADER_INCOMPATIBLE_COMPRESSED))
+
int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Object **ret);
-uint64_t journal_file_entry_n_items(Object *o);
+uint64_t journal_file_entry_n_items(Object *o) _pure_;
+uint64_t journal_file_entry_array_n_items(Object *o) _pure_;
+uint64_t journal_file_hash_table_n_items(Object *o) _pure_;
+int journal_file_append_object(JournalFile *f, int type, uint64_t size, Object **ret, uint64_t *offset);
int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const struct iovec iovec[], unsigned n_iovec, uint64_t *seqno, Object **ret, uint64_t *offset);
int journal_file_find_data_object(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset);
int journal_file_find_data_object_with_hash(JournalFile *f, const void *data, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset);
+int journal_file_find_field_object(JournalFile *f, const void *field, uint64_t size, Object **ret, uint64_t *offset);
+int journal_file_find_field_object_with_hash(JournalFile *f, const void *field, uint64_t size, uint64_t hash, Object **ret, uint64_t *offset);
+
int journal_file_next_entry(JournalFile *f, Object *o, uint64_t p, direction_t direction, Object **ret, uint64_t *offset);
int journal_file_skip_entry(JournalFile *f, Object *o, uint64_t p, int64_t skip, Object **ret, uint64_t *offset);
void journal_file_dump(JournalFile *f);
void journal_file_print_header(JournalFile *f);
-int journal_file_rotate(JournalFile **f, bool compress, bool authenticate);
-
-int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free);
+int journal_file_rotate(JournalFile **f, bool compress, bool seal);
void journal_file_post_change(JournalFile *f);
int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to);
int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot, usec_t *from, usec_t *to);
-bool journal_file_rotate_suggested(JournalFile *f);
-
-int journal_file_append_tag(JournalFile *f);
+bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec);