X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fjournal%2Fjournal-file.c;h=c468b226972d1ebffe02177584b384aaea642a6c;hp=fd2e9ebbbcf1cb0a9d7905714537e35a12f9f328;hb=a536e2613f278970b1ab11788caf1a9a51e1a103;hpb=babfc09177c1e71cec6c1ef9602e265ed40cfe4f

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index fd2e9ebbb..c468b2269 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -6,16 +6,16 @@
   Copyright 2011 Lennart Poettering
 
   systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
+  under the terms of the GNU Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 of the License, or
   (at your option) any later version.
 
   systemd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
+  Lesser General Public License for more details.
 
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
@@ -35,12 +35,12 @@
 #define DEFAULT_DATA_HASH_TABLE_SIZE (2047ULL*16ULL)
 #define DEFAULT_FIELD_HASH_TABLE_SIZE (2047ULL*16ULL)
 
-#define DEFAULT_WINDOW_SIZE (128ULL*1024ULL*1024ULL)
+#define DEFAULT_WINDOW_SIZE (8ULL*1024ULL*1024ULL)
 
-#define COMPRESSION_SIZE_THRESHOLD (64ULL)
+#define COMPRESSION_SIZE_THRESHOLD (512ULL)
 
 /* This is the minimum journal file size */
-#define JOURNAL_FILE_SIZE_MIN (64ULL*1024ULL)
+#define JOURNAL_FILE_SIZE_MIN (64ULL*1024ULL)                  /* 64 KiB */
 
 /* These are the lower and upper bounds if we deduce the max_use value
  * from the file system size */
@@ -48,7 +48,7 @@
 #define DEFAULT_MAX_USE_UPPER (4ULL*1024ULL*1024ULL*1024ULL)   /* 4 GiB */
 
 /* This is the upper bound if we deduce max_size from max_use */
-#define DEFAULT_MAX_SIZE_UPPER (16ULL*1024ULL*1024ULL)         /* 16 MiB */
+#define DEFAULT_MAX_SIZE_UPPER (128ULL*1024ULL*1024ULL)        /* 128 MiB */
 
 /* This is the upper bound if we deduce the keep_free value from the
  * file system size */
@@ -67,9 +67,12 @@ void journal_file_close(JournalFile *f) {
 
         assert(f);
 
-        if (f->header && f->writable)
-                f->header->state = STATE_OFFLINE;
+        if (f->header) {
+                if (f->writable)
+                        f->header->state = STATE_OFFLINE;
 
+                munmap(f->header, PAGE_ALIGN(sizeof(Header)));
+        }
 
         for (t = 0; t < _WINDOW_MAX; t++)
                 if (f->windows[t].ptr)
@@ -96,7 +99,7 @@ static int journal_file_init_header(JournalFile *f, JournalFile *template) {
 
         zero(h);
         memcpy(h.signature, signature, 8);
-        h.arena_offset = htole64(ALIGN64(sizeof(h)));
+        h.header_size = htole64(ALIGN64(sizeof(h)));
 
         r = sd_id128_randomize(&h.file_id);
         if (r < 0)
@@ -138,6 +141,9 @@ static int journal_file_refresh_header(JournalFile *f) {
         f->header->boot_id = boot_id;
 
         f->header->state = STATE_ONLINE;
+
+        __sync_synchronize();
+
         return 0;
 }
 
@@ -155,11 +161,14 @@ static int journal_file_verify_header(JournalFile *f) {
                 return -EPROTONOSUPPORT;
 #endif
 
-        if ((uint64_t) f->last_stat.st_size < (le64toh(f->header->arena_offset) + le64toh(f->header->arena_size)))
+        if (f->header->header_size != htole64(ALIGN64(sizeof(*(f->header)))))
+                return -EBADMSG;
+
+        if ((uint64_t) f->last_stat.st_size < (le64toh(f->header->header_size) + le64toh(f->header->arena_size)))
                 return -ENODATA;
 
         if (f->writable) {
-                uint32_t state;
+                uint8_t state;
                 sd_id128_t machine_id;
                 int r;
 
@@ -174,6 +183,7 @@ static int journal_file_verify_header(JournalFile *f) {
 
                 if (state == STATE_ONLINE)
                         log_debug("Journal file %s is already online. Assuming unclean closing. Ignoring.", f->path);
+                        /* FIXME: immediately rotate */
                 else if (state == STATE_ARCHIVED)
                         return -ESHUTDOWN;
                 else if (state != STATE_OFFLINE)
@@ -185,6 +195,7 @@ static int journal_file_verify_header(JournalFile *f) {
 
 static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size) {
         uint64_t old_size, new_size;
+        int r;
 
         assert(f);
 
@@ -193,12 +204,12 @@ static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size)
          * ourselves */
 
         old_size =
-                le64toh(f->header->arena_offset) +
+                le64toh(f->header->header_size) +
                 le64toh(f->header->arena_size);
 
         new_size = PAGE_ALIGN(offset + size);
-        if (new_size < le64toh(f->header->arena_offset))
-                new_size = le64toh(f->header->arena_offset);
+        if (new_size < le64toh(f->header->header_size))
+                new_size = le64toh(f->header->header_size);
 
         if (new_size <= old_size)
                 return 0;
@@ -229,13 +240,14 @@ static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size)
         /* Note that the glibc fallocate() fallback is very
            inefficient, hence we try to minimize the allocation area
            as we can. */
-        if (posix_fallocate(f->fd, old_size, new_size - old_size) < 0)
-                return -errno;
+        r = posix_fallocate(f->fd, old_size, new_size - old_size);
+        if (r != 0)
+                return -r;
 
         if (fstat(f->fd, &f->last_stat) < 0)
                 return -errno;
 
-        f->header->arena_size = new_size - htole64(f->header->arena_offset);
+        f->header->arena_size = htole64(new_size - le64toh(f->header->header_size));
 
         return 0;
 }
@@ -283,7 +295,7 @@ static int journal_file_map(
 }
 
 static int journal_file_move_to(JournalFile *f, int wt, uint64_t offset, uint64_t size, void **ret) {
-        void *p;
+        void *p = NULL;
         uint64_t delta;
         int r;
         Window *w;
@@ -293,6 +305,15 @@ static int journal_file_move_to(JournalFile *f, int wt, uint64_t offset, uint64_
         assert(wt >= 0);
         assert(wt < _WINDOW_MAX);
 
+        if (offset + size > (uint64_t) f->last_stat.st_size) {
+                /* Hmm, out of range? Let's refresh the fstat() data
+                 * first, before we trust that check. */
+
+                if (fstat(f->fd, &f->last_stat) < 0 ||
+                    offset + size > (uint64_t) f->last_stat.st_size)
+                        return -EADDRNOTAVAIL;
+        }
+
         w = f->windows + wt;
 
         if (_likely_(w->ptr &&
@@ -318,21 +339,18 @@ static int journal_file_move_to(JournalFile *f, int wt, uint64_t offset, uint64_
                  * the window space before and half behind the
                  * requested mapping */
 
-                delta = PAGE_ALIGN((DEFAULT_WINDOW_SIZE - size) / 2);
+                delta = (DEFAULT_WINDOW_SIZE - size) / 2;
 
-                if (offset < delta)
+                if (delta > offset)
                         delta = offset;
 
                 offset -= delta;
-                size += (DEFAULT_WINDOW_SIZE - delta);
+                size = DEFAULT_WINDOW_SIZE;
         } else
                 delta = 0;
 
-        if (offset > (uint64_t) f->last_stat.st_size)
-                return -EADDRNOTAVAIL;
-
         if (offset + size > (uint64_t) f->last_stat.st_size)
-                size = PAGE_ALIGN((uint64_t) f->last_stat.st_size - offset);
+                size = (uint64_t) f->last_stat.st_size - offset;
 
         if (size <= 0)
                 return -EADDRNOTAVAIL;
@@ -443,7 +461,7 @@ static int journal_file_append_object(JournalFile *f, int type, uint64_t size, O
 
         p = le64toh(f->header->tail_object_offset);
         if (p == 0)
-                p = le64toh(f->header->arena_offset);
+                p = le64toh(f->header->header_size);
         else {
                 r = journal_file_move_to_object(f, -1, p, &tail);
                 if (r < 0)
@@ -572,28 +590,26 @@ static int journal_file_link_data(JournalFile *f, Object *o, uint64_t offset, ui
         assert(offset > 0);
         assert(o->object.type == OBJECT_DATA);
 
+        /* This might alter the window we are looking at */
+
         o->data.next_hash_offset = o->data.next_field_offset = 0;
         o->data.entry_offset = o->data.entry_array_offset = 0;
         o->data.n_entries = 0;
 
         h = hash % (le64toh(f->header->data_hash_table_size) / sizeof(HashItem));
-        p = le64toh(f->data_hash_table[h].head_hash_offset);
+        p = le64toh(f->data_hash_table[h].tail_hash_offset);
         if (p == 0) {
                 /* Only entry in the hash table is easy */
                 f->data_hash_table[h].head_hash_offset = htole64(offset);
         } else {
-                /* Temporarily move back to the previous data object,
-                 * to patch in pointer */
+                /* Move back to the previous data object, to patch in
+                 * pointer */
 
                 r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
                 if (r < 0)
                         return r;
 
                 o->data.next_hash_offset = htole64(offset);
-
-                r = journal_file_move_to_object(f, OBJECT_DATA, offset, &o);
-                if (r < 0)
-                        return r;
         }
 
         f->data_hash_table[h].tail_hash_offset = htole64(offset);
@@ -605,6 +621,7 @@ int journal_file_find_data_object_with_hash(
                 JournalFile *f,
                 const void *data, uint64_t size, uint64_t hash,
                 Object **ret, uint64_t *offset) {
+
         uint64_t p, osize, h;
         int r;
 
@@ -693,7 +710,11 @@ int journal_file_find_data_object(
                                                        ret, offset);
 }
 
-static int journal_file_append_data(JournalFile *f, const void *data, uint64_t size, Object **ret, uint64_t *offset) {
+static int journal_file_append_data(
+                JournalFile *f,
+                const void *data, uint64_t size,
+                Object **ret, uint64_t *offset) {
+
         uint64_t hash, p;
         uint64_t osize;
         Object *o;
@@ -751,6 +772,12 @@ static int journal_file_append_data(JournalFile *f, const void *data, uint64_t s
         if (r < 0)
                 return r;
 
+        /* The linking might have altered the window, so let's
+         * refresh our pointer */
+        r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+        if (r < 0)
+                return r;
+
         if (ret)
                 *ret = o;
 
@@ -762,21 +789,21 @@ static int journal_file_append_data(JournalFile *f, const void *data, uint64_t s
 
 uint64_t journal_file_entry_n_items(Object *o) {
         assert(o);
-        assert(o->object.type == htole64(OBJECT_ENTRY));
+        assert(o->object.type == OBJECT_ENTRY);
 
         return (le64toh(o->object.size) - offsetof(Object, entry.items)) / sizeof(EntryItem);
 }
 
 static uint64_t journal_file_entry_array_n_items(Object *o) {
         assert(o);
-        assert(o->object.type == htole64(OBJECT_ENTRY_ARRAY));
+        assert(o->object.type == OBJECT_ENTRY_ARRAY);
 
         return (le64toh(o->object.size) - offsetof(Object, entry_array.items)) / sizeof(uint64_t);
 }
 
 static int link_entry_into_array(JournalFile *f,
-                                 uint64_t *first,
-                                 uint64_t *idx,
+                                 le64_t *first,
+                                 le64_t *idx,
                                  uint64_t p) {
         int r;
         uint64_t n = 0, ap = 0, q, i, a, hidx;
@@ -824,7 +851,7 @@ static int link_entry_into_array(JournalFile *f,
         o->entry_array.items[i] = htole64(p);
 
         if (ap == 0)
-                *first = q;
+                *first = htole64(q);
         else {
                 r = journal_file_move_to_object(f, OBJECT_ENTRY_ARRAY, ap, &o);
                 if (r < 0)
@@ -839,9 +866,9 @@ static int link_entry_into_array(JournalFile *f,
 }
 
 static int link_entry_into_array_plus_one(JournalFile *f,
-                                          uint64_t *extra,
-                                          uint64_t *first,
-                                          uint64_t *idx,
+                                          le64_t *extra,
+                                          le64_t *first,
+                                          le64_t *idx,
                                           uint64_t p) {
 
         int r;
@@ -855,9 +882,9 @@ static int link_entry_into_array_plus_one(JournalFile *f,
         if (*idx == 0)
                 *extra = htole64(p);
         else {
-                uint64_t i;
+                le64_t i;
 
-                i = le64toh(*idx) - 1;
+                i = htole64(le64toh(*idx) - 1);
                 r = link_entry_into_array(f, first, &i, p);
                 if (r < 0)
                         return r;
@@ -898,6 +925,8 @@ static int journal_file_link_entry(JournalFile *f, Object *o, uint64_t offset) {
         assert(offset > 0);
         assert(o->object.type == OBJECT_ENTRY);
 
+        __sync_synchronize();
+
         /* Link up the entry itself */
         r = link_entry_into_array(f,
                                   &f->header->entry_array_offset,
@@ -906,7 +935,7 @@ static int journal_file_link_entry(JournalFile *f, Object *o, uint64_t offset) {
         if (r < 0)
                 return r;
 
-        log_error("=> %s seqnr=%lu n_entries=%lu", f->path, (unsigned long) o->entry.seqnum, (unsigned long) f->header->n_entries);
+        /* log_debug("=> %s seqnr=%lu n_entries=%lu", f->path, (unsigned long) o->entry.seqnum, (unsigned long) f->header->n_entries); */
 
         if (f->header->head_entry_realtime == 0)
                 f->header->head_entry_realtime = o->entry.realtime;
@@ -1005,9 +1034,6 @@ int journal_file_append_entry(JournalFile *f, const dual_timestamp *ts, const st
             ts->monotonic < le64toh(f->header->tail_entry_monotonic))
                 return -EINVAL;
 
-        if (ts->realtime < le64toh(f->header->tail_entry_realtime))
-                return -EINVAL;
-
         items = alloca(sizeof(EntryItem) * n_iovec);
 
         for (i = 0; i < n_iovec; i++) {
@@ -1036,7 +1062,7 @@ static int generic_array_get(JournalFile *f,
                              Object **ret, uint64_t *offset) {
 
         Object *o;
-        uint64_t p, a;
+        uint64_t p = 0, a;
         int r;
 
         assert(f);
@@ -1249,7 +1275,11 @@ static int generic_array_bisect_plus_one(JournalFile *f,
         r = test_object(f, extra, needle);
         if (r < 0)
                 return r;
-        else if (r == TEST_FOUND) {
+
+        if (r == TEST_FOUND)
+                r = direction == DIRECTION_DOWN ? TEST_RIGHT : TEST_LEFT;
+
+        if (r == TEST_RIGHT) {
                 Object *o;
 
                 r = journal_file_move_to_object(f, OBJECT_ENTRY, extra, &o);
@@ -1266,8 +1296,7 @@ static int generic_array_bisect_plus_one(JournalFile *f,
                         *idx = 0;
 
                 return 1;
-        } else if (r == TEST_RIGHT)
-                return 0;
+        }
 
         r = generic_array_bisect(f, first, n-1, needle, test_object, direction, ret, offset, idx);
 
@@ -1374,11 +1403,11 @@ int journal_file_move_to_entry_by_monotonic(
                 Object **ret,
                 uint64_t *offset) {
 
-        char t[8+32+1] = "_BOOT_ID=";
+        char t[9+32+1] = "_BOOT_ID=";
         Object *o;
         int r;
 
-        sd_id128_to_string(boot_id, t + 8);
+        sd_id128_to_string(boot_id, t + 9);
 
         r = journal_file_find_data_object(f, t, strlen(t), &o, NULL);
         if (r < 0)
@@ -1643,7 +1672,7 @@ void journal_file_dump(JournalFile *f) {
                (unsigned long) le64toh(f->header->n_objects),
                (unsigned long) le64toh(f->header->n_entries));
 
-        p = le64toh(f->header->arena_offset);
+        p = le64toh(f->header->header_size);
         while (p != 0) {
                 r = journal_file_move_to_object(f, -1, p, &o);
                 if (r < 0)
@@ -1677,6 +1706,10 @@ void journal_file_dump(JournalFile *f) {
                 case OBJECT_ENTRY_ARRAY:
                         printf("Type: OBJECT_ENTRY_ARRAY\n");
                         break;
+
+                case OBJECT_SIGNATURE:
+                        printf("Type: OBJECT_SIGNATURE\n");
+                        break;
                 }
 
                 if (o->object.flags & OBJECT_COMPRESSED)
@@ -1710,6 +1743,9 @@ int journal_file_open(
             (flags & O_ACCMODE) != O_RDWR)
                 return -EINVAL;
 
+        if (!endswith(fname, ".journal"))
+                return -EINVAL;
+
         f = new0(JournalFile, 1);
         if (!f)
                 return -ENOMEM;
@@ -1720,6 +1756,11 @@ int journal_file_open(
         f->writable = (flags & O_ACCMODE) != O_RDONLY;
         f->prot = prot_from_flags(flags);
 
+        if (template) {
+                f->metrics = template->metrics;
+                f->compress = template->compress;
+        }
+
         f->path = strdup(fname);
         if (!f->path) {
                 r = -ENOMEM;
@@ -1823,7 +1864,7 @@ int journal_file_rotate(JournalFile **f) {
 
         l = strlen(old_file->path);
 
-        p = new(char, l + 1 + 16 + 1 + 32 + 1 + 16 + 1);
+        p = new(char, l + 1 + 32 + 1 + 16 + 1 + 16 + 1);
         if (!p)
                 return -ENOMEM;
 
@@ -1841,7 +1882,7 @@ int journal_file_rotate(JournalFile **f) {
         if (r < 0)
                 return -errno;
 
-        old_file->header->state = le32toh(STATE_ARCHIVED);
+        old_file->header->state = STATE_ARCHIVED;
 
         r = journal_file_open(old_file->path, old_file->flags, old_file->mode, old_file, &new_file);
         journal_file_close(old_file);
@@ -1850,6 +1891,49 @@ int journal_file_rotate(JournalFile **f) {
         return r;
 }
 
+int journal_file_open_reliably(
+                const char *fname,
+                int flags,
+                mode_t mode,
+                JournalFile *template,
+                JournalFile **ret) {
+
+        int r;
+        size_t l;
+        char *p;
+
+        r = journal_file_open(fname, flags, mode, template, ret);
+        if (r != -EBADMSG && /* corrupted */
+            r != -ENODATA && /* truncated */
+            r != -EHOSTDOWN && /* other machine */
+            r != -EPROTONOSUPPORT) /* incompatible feature */
+                return r;
+
+        if ((flags & O_ACCMODE) == O_RDONLY)
+                return r;
+
+        if (!(flags & O_CREAT))
+                return r;
+
+        /* The file is corrupted. Rotate it away and try it again (but only once) */
+
+        l = strlen(fname);
+        if (asprintf(&p, "%.*s@%016llx-%016llx.journal~",
+                     (int) (l-8), fname,
+                     (unsigned long long) now(CLOCK_REALTIME),
+                     random_ull()) < 0)
+                return -ENOMEM;
+
+        r = rename(fname, p);
+        free(p);
+        if (r < 0)
+                return -errno;
+
+        log_warning("File %s corrupted, renaming and replacing.", fname);
+
+        return journal_file_open(fname, flags, mode, template, ret);
+}
+
 struct vacuum_info {
         off_t usage;
         char *filename;
@@ -1857,6 +1941,8 @@ struct vacuum_info {
         uint64_t realtime;
         sd_id128_t seqnum_id;
         uint64_t seqnum;
+
+        bool have_seqnum;
 };
 
 static int vacuum_compare(const void *_a, const void *_b) {
@@ -1865,7 +1951,8 @@ static int vacuum_compare(const void *_a, const void *_b) {
         a = _a;
         b = _b;
 
-        if (sd_id128_equal(a->seqnum_id, b->seqnum_id)) {
+        if (a->have_seqnum && b->have_seqnum &&
+            sd_id128_equal(a->seqnum_id, b->seqnum_id)) {
                 if (a->seqnum < b->seqnum)
                         return -1;
                 else if (a->seqnum > b->seqnum)
@@ -1878,8 +1965,10 @@ static int vacuum_compare(const void *_a, const void *_b) {
                 return -1;
         else if (a->realtime > b->realtime)
                 return 1;
-        else
+        else if (a->have_seqnum && b->have_seqnum)
                 return memcmp(&a->seqnum_id, &b->seqnum_id, 16);
+        else
+                return strcmp(a->filename, b->filename);
 }
 
 int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t min_free) {
@@ -1904,8 +1993,9 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
                 size_t q;
                 struct stat st;
                 char *p;
-                unsigned long long seqnum, realtime;
+                unsigned long long seqnum = 0, realtime;
                 sd_id128_t seqnum_id;
+                bool have_seqnum;
 
                 k = readdir_r(d, &buf, &de);
                 if (k != 0) {
@@ -1916,41 +2006,71 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
                 if (!de)
                         break;
 
-                if (!dirent_is_file_with_suffix(de, ".journal"))
+                if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)
+                        continue;
+
+                if (!S_ISREG(st.st_mode))
                         continue;
 
                 q = strlen(de->d_name);
 
-                if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8)
-                        continue;
+                if (endswith(de->d_name, ".journal")) {
 
-                if (de->d_name[q-8-16-1] != '-' ||
-                    de->d_name[q-8-16-1-16-1] != '-' ||
-                    de->d_name[q-8-16-1-16-1-32-1] != '@')
-                        continue;
+                        /* Vacuum archived files */
 
-                if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0)
-                        continue;
+                        if (q < 1 + 32 + 1 + 16 + 1 + 16 + 8)
+                                continue;
 
-                if (!S_ISREG(st.st_mode))
-                        continue;
+                        if (de->d_name[q-8-16-1] != '-' ||
+                            de->d_name[q-8-16-1-16-1] != '-' ||
+                            de->d_name[q-8-16-1-16-1-32-1] != '@')
+                                continue;
 
-                p = strdup(de->d_name);
-                if (!p) {
-                        r = -ENOMEM;
-                        goto finish;
-                }
+                        p = strdup(de->d_name);
+                        if (!p) {
+                                r = -ENOMEM;
+                                goto finish;
+                        }
 
-                de->d_name[q-8-16-1-16-1] = 0;
-                if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) {
-                        free(p);
-                        continue;
-                }
+                        de->d_name[q-8-16-1-16-1] = 0;
+                        if (sd_id128_from_string(de->d_name + q-8-16-1-16-1-32, &seqnum_id) < 0) {
+                                free(p);
+                                continue;
+                        }
+
+                        if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) {
+                                free(p);
+                                continue;
+                        }
+
+                        have_seqnum = true;
+
+                } else if (endswith(de->d_name, ".journal~")) {
+                        unsigned long long tmp;
+
+                        /* Vacuum corrupted files */
+
+                        if (q < 1 + 16 + 1 + 16 + 8 + 1)
+                                continue;
 
-                if (sscanf(de->d_name + q-8-16-1-16, "%16llx-%16llx.journal", &seqnum, &realtime) != 2) {
-                        free(p);
+                        if (de->d_name[q-1-8-16-1] != '-' ||
+                            de->d_name[q-1-8-16-1-16-1] != '@')
+                                continue;
+
+                        p = strdup(de->d_name);
+                        if (!p) {
+                                r = -ENOMEM;
+                                goto finish;
+                        }
+
+                        if (sscanf(de->d_name + q-1-8-16-1-16, "%16llx-%16llx.journal~", &realtime, &tmp) != 2) {
+                                free(p);
+                                continue;
+                        }
+
+                        have_seqnum = false;
+                } else
                         continue;
-                }
 
                 if (n_list >= n_allocated) {
                         struct vacuum_info *j;
@@ -1967,10 +2087,11 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
                 }
 
                 list[n_list].filename = p;
-                list[n_list].usage = (uint64_t) st.st_blksize * (uint64_t) st.st_blocks;
+                list[n_list].usage = 512UL * (uint64_t) st.st_blocks;
                 list[n_list].seqnum = seqnum;
                 list[n_list].realtime = realtime;
                 list[n_list].seqnum_id = seqnum_id;
+                list[n_list].have_seqnum = have_seqnum;
 
                 sum += list[n_list].usage;
 
@@ -1992,7 +2113,7 @@ int journal_directory_vacuum(const char *directory, uint64_t max_use, uint64_t m
                         break;
 
                 if (unlinkat(dirfd(d), list[i].filename, 0) >= 0) {
-                        log_debug("Deleted archived journal %s/%s.", directory, list[i].filename);
+                        log_info("Deleted archived journal %s/%s.", directory, list[i].filename);
                         sum -= list[i].usage;
                 } else if (errno != ENOENT)
                         log_warning("Failed to delete %s/%s: %m", directory, list[i].filename);
@@ -2039,7 +2160,8 @@ int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint6
         items = alloca(sizeof(EntryItem) * n);
 
         for (i = 0; i < n; i++) {
-                uint64_t le_hash, l, h;
+                uint64_t l, h;
+                le64_t le_hash;
                 size_t t;
                 void *data;
                 Object *u;
@@ -2095,7 +2217,7 @@ int journal_file_copy_entry(JournalFile *from, JournalFile *to, Object *o, uint6
 void journal_default_metrics(JournalMetrics *m, int fd) {
         uint64_t fs_size = 0;
         struct statvfs ss;
-        char a[64], b[64], c[64], d[64];
+        char a[FORMAT_BYTES_MAX], b[FORMAT_BYTES_MAX], c[FORMAT_BYTES_MAX], d[FORMAT_BYTES_MAX];
 
         assert(m);
         assert(fd >= 0);
@@ -2160,9 +2282,80 @@ void journal_default_metrics(JournalMetrics *m, int fd) {
                         m->keep_free = DEFAULT_KEEP_FREE;
         }
 
-        log_debug("Fixed max_use=%s max_size=%s min_size=%s keep_free=%s",
-                  format_bytes(a, sizeof(a), m->max_use),
-                  format_bytes(b, sizeof(b), m->max_size),
-                  format_bytes(c, sizeof(c), m->min_size),
-                  format_bytes(d, sizeof(d), m->keep_free));
+        log_info("Fixed max_use=%s max_size=%s min_size=%s keep_free=%s",
+                 format_bytes(a, sizeof(a), m->max_use),
+                 format_bytes(b, sizeof(b), m->max_size),
+                 format_bytes(c, sizeof(c), m->min_size),
+                 format_bytes(d, sizeof(d), m->keep_free));
+}
+
+int journal_file_get_cutoff_realtime_usec(JournalFile *f, usec_t *from, usec_t *to) {
+        Object *o;
+        int r;
+
+        assert(f);
+        assert(from || to);
+
+        if (from) {
+                r = journal_file_next_entry(f, NULL, 0, DIRECTION_DOWN, &o, NULL);
+                if (r <= 0)
+                        return r;
+
+                *from = le64toh(o->entry.realtime);
+        }
+
+        if (to) {
+                r = journal_file_next_entry(f, NULL, 0, DIRECTION_UP, &o, NULL);
+                if (r <= 0)
+                        return r;
+
+                *to = le64toh(o->entry.realtime);
+        }
+
+        return 1;
+}
+
+int journal_file_get_cutoff_monotonic_usec(JournalFile *f, sd_id128_t boot_id, usec_t *from, usec_t *to) {
+        char t[9+32+1] = "_BOOT_ID=";
+        Object *o;
+        uint64_t p;
+        int r;
+
+        assert(f);
+        assert(from || to);
+
+        sd_id128_to_string(boot_id, t + 9);
+
+        r = journal_file_find_data_object(f, t, strlen(t), &o, &p);
+        if (r <= 0)
+                return r;
+
+        if (le64toh(o->data.n_entries) <= 0)
+                return 0;
+
+        if (from) {
+                r = journal_file_move_to_object(f, OBJECT_ENTRY, le64toh(o->data.entry_offset), &o);
+                if (r < 0)
+                        return r;
+
+                *from = le64toh(o->entry.monotonic);
+        }
+
+        if (to) {
+                r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
+                if (r < 0)
+                        return r;
+
+                r = generic_array_get_plus_one(f,
+                                               le64toh(o->data.entry_offset),
+                                               le64toh(o->data.entry_array_offset),
+                                               le64toh(o->data.n_entries)-1,
+                                               &o, NULL);
+                if (r <= 0)
+                        return r;
+
+                *to = le64toh(o->entry.monotonic);
+        }
+
+        return 1;
 }