#include <unistd.h>
#include <sys/inotify.h>
#include <sys/poll.h>
+#include <sys/vfs.h>
+#include <linux/magic.h>
#include "sd-journal.h"
#include "journal-def.h"
#include "lookup3.h"
#include "compress.h"
#include "journal-internal.h"
+#include "missing.h"
+#include "catalog.h"
+#include "replace-var.h"
#define JOURNAL_FILES_MAX 1024
+#define JOURNAL_FILES_RECHECK_USEC (2 * USEC_PER_SEC)
+
+#define REPLACE_VAR_MAX 256
+
+#define DEFAULT_DATA_THRESHOLD (64*1024)
+
static void detach_location(sd_journal *j) {
Iterator i;
JournalFile *f;
return 0;
}
+static void check_network(sd_journal *j, int fd) {
+ struct statfs sfs;
+
+ assert(j);
+
+ if (j->on_network)
+ return;
+
+ if (fstatfs(fd, &sfs) < 0)
+ return;
+
+ j->on_network =
+ (long)sfs.f_type == (long)CIFS_MAGIC_NUMBER ||
+ sfs.f_type == CODA_SUPER_MAGIC ||
+ sfs.f_type == NCP_SUPER_MAGIC ||
+ sfs.f_type == NFS_SUPER_MAGIC ||
+ sfs.f_type == SMB_SUPER_MAGIC;
+}
+
static int add_file(sd_journal *j, const char *prefix, const char *filename) {
char *path;
int r;
return r;
}
+ check_network(j, f->fd);
+
j->current_invalidate_counter ++;
log_debug("File %s got added.", f->path);
}
}
+ check_network(j, dirfd(d));
+
closedir(d);
return 0;
}
}
+ check_network(j, dirfd(d));
+
closedir(d);
return 0;
j->inotify_fd = -1;
j->flags = flags;
+ j->data_threshold = DEFAULT_DATA_THRESHOLD;
if (path) {
j->path = strdup(path);
uint64_t rsize;
if (!uncompress_blob(o->data.payload, l,
- &f->compress_buffer, &f->compress_buffer_size, &rsize))
+ &f->compress_buffer, &f->compress_buffer_size, &rsize,
+ j->data_threshold))
return -EBADMSG;
*data = f->compress_buffer;
*data = o->data.payload;
*size = t;
- return 0;
+ return 1;
}
r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
return -ENOENT;
}
-static int return_data(JournalFile *f, Object *o, const void **data, size_t *size) {
+static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) {
size_t t;
uint64_t l;
#ifdef HAVE_XZ
uint64_t rsize;
- if (!uncompress_blob(o->data.payload, l, &f->compress_buffer, &f->compress_buffer_size, &rsize))
+ if (!uncompress_blob(o->data.payload, l, &f->compress_buffer, &f->compress_buffer_size, &rsize, j->data_threshold))
return -EBADMSG;
*data = f->compress_buffer;
if (le_hash != o->data.hash)
return -EBADMSG;
- r = return_data(f, o, data, size);
+ r = return_data(j, f, o, data, size);
if (r < 0)
return r;
return determine_change(j);
}
+ if (j->on_network) {
+ /* If we are on the network we need to regularly check
+ * for changes manually */
+
+ if (timeout_usec == (uint64_t) -1 || timeout_usec > JOURNAL_FILES_RECHECK_USEC)
+ timeout_usec = JOURNAL_FILES_RECHECK_USEC;
+ }
+
do {
r = fd_wait_for_event(j->inotify_fd, POLLIN, timeout_usec);
} while (r == -EINTR);
if (from)
*from = MIN(fr, *from);
if (to)
- *to = MIN(t, *to);
+ *to = MAX(t, *to);
}
}
if (from)
*from = MIN(fr, *from);
if (to)
- *to = MIN(t, *to);
+ *to = MAX(t, *to);
}
}
return -EINVAL;
if (isempty(field))
return -EINVAL;
+ if (!field_is_valid(field))
+ return -EINVAL;
f = strdup(field);
if (!f)
size_t ol;
bool found;
- /* Proceed to next data object in list the field's linked list */
+ /* Proceed to next data object in the field's linked list */
if (j->unique_offset == 0) {
r = journal_file_find_field_object(j->unique_file, j->unique_field, k, &o, NULL);
if (r < 0)
if (o->object.type != OBJECT_DATA)
return -EBADMSG;
- r = return_data(j->unique_file, o, &odata, &ol);
+ r = return_data(j, j->unique_file, o, &odata, &ol);
if (r < 0)
return r;
if (found)
continue;
- r = return_data(j->unique_file, o, data, l);
+ r = return_data(j, j->unique_file, o, data, l);
if (r < 0)
return r;
}
}
-void sd_journal_restart_unique(sd_journal *j) {
+_public_ void sd_journal_restart_unique(sd_journal *j) {
if (!j)
return;
j->unique_file = NULL;
j->unique_offset = 0;
}
+
+_public_ int sd_journal_reliable_fd(sd_journal *j) {
+ if (!j)
+ return -EINVAL;
+
+ return !j->on_network;
+}
+
+static char *lookup_field(const char *field, void *userdata) {
+ sd_journal *j = userdata;
+ const void *data;
+ size_t size, d;
+ int r;
+
+ assert(field);
+ assert(j);
+
+ r = sd_journal_get_data(j, field, &data, &size);
+ if (r < 0 ||
+ size > REPLACE_VAR_MAX)
+ return strdup(field);
+
+ d = strlen(field) + 1;
+
+ return strndup((const char*) data + d, size - d);
+}
+
+_public_ int sd_journal_get_catalog(sd_journal *j, char **ret) {
+ const void *data;
+ size_t size;
+ sd_id128_t id;
+ _cleanup_free_ char *text = NULL, *cid = NULL;
+ char *t;
+ int r;
+
+ if (!j)
+ return -EINVAL;
+ if (!ret)
+ return -EINVAL;
+
+ r = sd_journal_get_data(j, "MESSAGE_ID", &data, &size);
+ if (r < 0)
+ return r;
+
+ cid = strndup((const char*) data + 11, size - 11);
+ if (!cid)
+ return -ENOMEM;
+
+ r = sd_id128_from_string(cid, &id);
+ if (r < 0)
+ return r;
+
+ r = catalog_get(id, &text);
+ if (r < 0)
+ return r;
+
+ t = replace_var(text, lookup_field, j);
+ if (!t)
+ return -ENOMEM;
+
+ *ret = t;
+ return 0;
+}
+
+_public_ int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret) {
+ if (!ret)
+ return -EINVAL;
+
+ return catalog_get(id, ret);
+}
+
+_public_ int sd_journal_set_data_threshold(sd_journal *j, size_t sz) {
+ if (!j)
+ return -EINVAL;
+
+ j->data_threshold = sz;
+ return 0;
+}
+
+_public_ int sd_journal_get_data_threshold(sd_journal *j, size_t *sz) {
+ if (!j)
+ return -EINVAL;
+ if (!sz)
+ return -EINVAL;
+
+ *sz = j->data_threshold;
+ return 0;
+}