1 files changed, 97 insertions, 0 deletions
diff --git a/mgmtd/mgmt_history.h b/mgmtd/mgmt_history.h
new file mode 100644
index 0000000..5d9b662
--- /dev/null
+++ b/mgmtd/mgmt_history.h
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2021  Vmware, Inc.
+ *		       Pushpasis Sarkar <spushpasis@vmware.com>
+ * Copyright (c) 2023, LabN Consulting, L.L.C.
+ *
+ */
+#ifndef _FRR_MGMTD_HISTORY_H_
+#define _FRR_MGMTD_HISTORY_H_
+
+#include "vrf.h"
+
+PREDECL_DLIST(mgmt_cmt_infos);
+
+struct mgmt_ds_ctx;
+
+/*
+ * Rollback specific commit from commit history.
+ *
+ * vty
+ *    VTY context.
+ *
+ * cmtid_str
+ *    Specific commit id from commit history.
+ *
+ * Returns:
+ *    0 on success, -1 on failure.
+ */
+extern int mgmt_history_rollback_by_id(struct vty *vty, const char *cmtid_str);
+
+/*
+ * Rollback n commits from commit history.
+ *
+ * vty
+ *    VTY context.
+ *
+ * num_cmts
+ *    Number of commits to be rolled back.
+ *
+ * Returns:
+ *    0 on success, -1 on failure.
+ */
+extern int mgmt_history_rollback_n(struct vty *vty, int num_cmts);
+
+extern void mgmt_history_rollback_complete(bool success);
+
+/*
+ * Show mgmt commit history.
+ */
+extern void show_mgmt_cmt_history(struct vty *vty);
+
+extern void mgmt_history_new_record(struct mgmt_ds_ctx *ds_ctx);
+
+extern void mgmt_history_destroy(void);
+extern void mgmt_history_init(void);
+
+/*
+ * 012345678901234567890123456789
+ * 2023-12-31T12:12:12,012345678
+ * 20231231121212012345678
+ */
+#define MGMT_LONG_TIME_FMT "%Y-%m-%dT%H:%M:%S"
+#define MGMT_LONG_TIME_MAX_LEN 30
+#define MGMT_SHORT_TIME_FMT "%Y%m%d%H%M%S"
+#define MGMT_SHORT_TIME_MAX_LEN 24
+
+static inline const char *
+mgmt_time_to_string(struct timespec *tv, bool long_fmt, char *buffer, size_t sz)
+{
+	struct tm tm;
+	size_t n;
+
+	localtime_r(&tv->tv_sec, &tm);
+
+	if (long_fmt) {
+		n = strftime(buffer, sz, MGMT_LONG_TIME_FMT, &tm);
+		assert(n < sz);
+		snprintf(&buffer[n], sz - n, ",%09lu", tv->tv_nsec);
+	} else {
+		n = strftime(buffer, sz, MGMT_SHORT_TIME_FMT, &tm);
+		assert(n < sz);
+		snprintf(&buffer[n], sz - n, "%09lu", tv->tv_nsec);
+	}
+
+	return buffer;
+}
+
+static inline const char *mgmt_realtime_to_string(struct timeval *tv, char *buf,
+						  size_t sz)
+{
+	struct timespec ts = {.tv_sec = tv->tv_sec,
+			      .tv_nsec = tv->tv_usec * 1000};
+
+	return mgmt_time_to_string(&ts, true, buf, sz);
+}
+
+#endif /* _FRR_MGMTD_HISTORY_H_ */