Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/journal-remote/journal-remote-parse.c b/src/journal-remote/journal-remote-parse.c
new file mode 100644
index 0000000..e23012c
--- /dev/null
+++ b/src/journal-remote/journal-remote-parse.c
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "journal-remote-parse.h"
+#include "parse-util.h"
+#include "string-util.h"
+
+void source_free(RemoteSource *source) {
+        if (!source)
+                return;
+
+        journal_importer_cleanup(&source->importer);
+
+        log_debug("Writer ref count %u", source->writer->n_ref);
+        writer_unref(source->writer);
+
+        sd_event_source_unref(source->event);
+        sd_event_source_unref(source->buffer_event);
+
+        free(source);
+}
+
+/**
+ * Initialize zero-filled source with given values. On success, takes
+ * ownership of fd, name, and writer, otherwise does not touch them.
+ */
+RemoteSource* source_new(int fd, bool passive_fd, char *name, Writer *writer) {
+        RemoteSource *source;
+
+        log_debug("Creating source for %sfd:%d (%s)",
+                  passive_fd ? "passive " : "", fd, name);
+
+        assert(fd >= 0);
+
+        source = new0(RemoteSource, 1);
+        if (!source)
+                return NULL;
+
+        source->importer = JOURNAL_IMPORTER_MAKE(fd);
+        source->importer.passive_fd = passive_fd;
+        source->importer.name = name;
+
+        source->writer = writer;
+
+        return source;
+}
+
+int process_source(RemoteSource *source, JournalFileFlags file_flags) {
+        int r;
+
+        assert(source);
+        assert(source->writer);
+
+        r = journal_importer_process_data(&source->importer);
+        if (r <= 0)
+                return r;
+
+        /* We have a full event */
+        log_trace("Received full event from source@%p fd:%d (%s)",
+                  source, source->importer.fd, source->importer.name);
+
+        if (source->importer.iovw.count == 0) {
+                log_warning("Entry with no payload, skipping");
+                goto freeing;
+        }
+
+        assert(source->importer.iovw.iovec);
+
+        r = writer_write(source->writer,
+                         &source->importer.iovw,
+                         &source->importer.ts,
+                         &source->importer.boot_id,
+                         file_flags);
+        if (IN_SET(r, -EBADMSG, -EADDRNOTAVAIL)) {
+                log_warning_errno(r, "Entry is invalid, ignoring.");
+                r = 0;
+        } else if (r < 0)
+                log_error_errno(r, "Failed to write entry of %zu bytes: %m",
+                                iovw_size(&source->importer.iovw));
+        else
+                r = 1;
+
+ freeing:
+        journal_importer_drop_iovw(&source->importer);
+        return r;
+}