X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fjournal-file.h;h=cdbc8e41f615e9989e00e0ed0746ff15e30776dc;hb=18cf1a1be5ae6985f211ec6f02504506da36b223;hp=1da1d3b8347829a77f86e747b6e346a0414aeeb4;hpb=27370278976735ea365c5169e8916b5eec6e6bdc;p=elogind.git

diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 1da1d3b83..cdbc8e41f 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -33,6 +33,7 @@
 #include "journal-def.h"
 #include "util.h"
 #include "mmap-cache.h"
+#include "hashmap.h"
 
 typedef struct JournalMetrics {
         uint64_t max_use;
@@ -51,7 +52,7 @@ typedef struct JournalFile {
         int prot;
         bool writable;
         bool compress;
-        bool authenticate;
+        bool seal;
 
         bool tail_entry_monotonic_valid;
 
@@ -64,6 +65,8 @@ typedef struct JournalFile {
         JournalMetrics metrics;
         MMapCache *mmap;
 
+        Hashmap *chain_cache;
+
 #ifdef HAVE_XZ
         void *compress_buffer;
         uint64_t compress_buffer_size;
@@ -73,8 +76,17 @@ typedef struct JournalFile {
         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;
 
@@ -88,7 +100,7 @@ int journal_file_open(
                 int flags,
                 mode_t mode,
                 bool compress,
-                bool authenticate,
+                bool seal,
                 JournalMetrics *metrics,
                 MMapCache *mmap_cache,
                 JournalFile *template,
@@ -101,21 +113,44 @@ int journal_file_open_reliably(
                 int flags,
                 mode_t mode,
                 bool compress,
-                bool authenticate,
+                bool seal,
                 JournalMetrics *metrics,
                 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_array_n_items(Object *o);
+uint64_t journal_file_hash_table_n_items(Object *o);
 
 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);
@@ -123,6 +158,9 @@ int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const st
 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);
 
@@ -143,7 +181,7 @@ int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint6
 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_file_rotate(JournalFile **f, bool compress, bool seal);
 
 void journal_file_post_change(JournalFile *f);
 
@@ -152,4 +190,4 @@ void journal_default_metrics(JournalMetrics *m, int fd);
 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);
+bool journal_file_rotate_suggested(JournalFile *f, usec_t max_file_usec);