1 files changed, 60 insertions, 0 deletions
diff --git a/src/shared/journal-importer.h b/src/shared/journal-importer.h
new file mode 100644
index 0000000..e0073fc
--- /dev/null
+++ b/src/shared/journal-importer.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#pragma once
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <sys/uio.h>
+
+#include "sd-id128.h"
+
+#include "io-util.h"
+#include "time-util.h"
+
+/* Make sure not to make this smaller than the maximum coredump size.
+ * See JOURNAL_SIZE_MAX in coredump.c */
+#ifndef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+#define ENTRY_SIZE_MAX (1024*1024*770u)
+#define DATA_SIZE_MAX (1024*1024*768u)
+#else
+#define ENTRY_SIZE_MAX (1024*1024*13u)
+#define DATA_SIZE_MAX (1024*1024*11u)
+#endif
+#define LINE_CHUNK 8*1024u
+
+/* The maximum number of fields in an entry */
+#define ENTRY_FIELD_COUNT_MAX 1024
+
+typedef struct JournalImporter {
+        int fd;
+        bool passive_fd;
+        char *name;
+
+        char *buf;
+        size_t size;       /* total size of the buffer */
+        size_t offset;     /* offset to the beginning of live data in the buffer */
+        size_t scanned;    /* number of bytes since the beginning of data without a newline */
+        size_t filled;     /* total number of bytes in the buffer */
+
+        size_t field_len;  /* used for binary fields: the field name length */
+        size_t data_size;  /* and the size of the binary data chunk being processed */
+
+        struct iovec_wrapper iovw;
+
+        int state;
+        dual_timestamp ts;
+        sd_id128_t boot_id;
+} JournalImporter;
+
+#define JOURNAL_IMPORTER_INIT(_fd) { .fd = (_fd), .iovw = {} }
+#define JOURNAL_IMPORTER_MAKE(_fd) (JournalImporter) JOURNAL_IMPORTER_INIT(_fd)
+
+void journal_importer_cleanup(JournalImporter *);
+int journal_importer_process_data(JournalImporter *);
+int journal_importer_push_data(JournalImporter *, const char *data, size_t size);
+void journal_importer_drop_iovw(JournalImporter *);
+bool journal_importer_eof(const JournalImporter *);
+
+static inline size_t journal_importer_bytes_remaining(const JournalImporter *imp) {
+        return imp->filled;
+}