1 files changed, 118 insertions, 0 deletions
diff --git a/tipc/nametable.c b/tipc/nametable.c
new file mode 100644
index 0000000..5162f7f
--- /dev/null
+++ b/tipc/nametable.c
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * nametable.c	TIPC nametable functionality.
+ *
+ * Authors:	Richard Alpe <richard.alpe@ericsson.com>
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#include <linux/tipc_netlink.h>
+#include <linux/tipc.h>
+#include <linux/genetlink.h>
+
+#include "cmdl.h"
+#include "msg.h"
+#include "nametable.h"
+#include "misc.h"
+#include "utils.h"
+
+#define PORTID_STR_LEN 45 /* Four u32 and five delimiter chars */
+
+static int nametable_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+	int *iteration = data;
+	struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+	struct nlattr *info[TIPC_NLA_MAX + 1] = {};
+	struct nlattr *attrs[TIPC_NLA_NAME_TABLE_MAX + 1] = {};
+	struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1] = {};
+	const char *scope[] = { "", "zone", "cluster", "node" };
+	char str[33] = {0,};
+
+	mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
+	if (!info[TIPC_NLA_NAME_TABLE])
+		return MNL_CB_ERROR;
+
+	mnl_attr_parse_nested(info[TIPC_NLA_NAME_TABLE], parse_attrs, attrs);
+	if (!attrs[TIPC_NLA_NAME_TABLE_PUBL])
+		return MNL_CB_ERROR;
+
+	mnl_attr_parse_nested(attrs[TIPC_NLA_NAME_TABLE_PUBL], parse_attrs, publ);
+	if (!publ[TIPC_NLA_NAME_TABLE_PUBL])
+		return MNL_CB_ERROR;
+
+	if (!*iteration && !is_json_context())
+		printf("%-10s %-10s %-10s %-8s %-10s %-33s\n",
+		       "Type", "Lower", "Upper", "Scope", "Port",
+		       "Node");
+	(*iteration)++;
+
+	hash2nodestr(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE]), str);
+
+	open_json_object(NULL);
+	print_uint(PRINT_ANY, "type", "%-10u",
+			   mnl_attr_get_u32(publ[TIPC_NLA_PUBL_TYPE]));
+	print_string(PRINT_FP, NULL, " ", "");
+	print_uint(PRINT_ANY, "lower", "%-10u",
+			   mnl_attr_get_u32(publ[TIPC_NLA_PUBL_LOWER]));
+	print_string(PRINT_FP, NULL, " ", "");
+	print_uint(PRINT_ANY, "upper", "%-10u",
+			   mnl_attr_get_u32(publ[TIPC_NLA_PUBL_UPPER]));
+	print_string(PRINT_FP, NULL, " ", "");
+	print_string(PRINT_ANY, "scope", "%-8s",
+			     scope[mnl_attr_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]);
+	print_string(PRINT_FP, NULL, " ", "");
+	print_uint(PRINT_ANY, "port", "%-10u",
+			   mnl_attr_get_u32(publ[TIPC_NLA_PUBL_REF]));
+	print_string(PRINT_FP, NULL, " ", "");
+	print_string(PRINT_ANY, "node", "%s", str);
+	print_string(PRINT_FP, NULL, "\n", "");
+	close_json_object();
+
+	return MNL_CB_OK;
+}
+
+static int cmd_nametable_show(struct nlmsghdr *nlh, const struct cmd *cmd,
+			      struct cmdl *cmdl, void *data)
+{
+	int iteration = 0;
+	int rc = 0;
+
+	if (help_flag) {
+		fprintf(stderr, "Usage: %s nametable show\n", cmdl->argv[0]);
+		return -EINVAL;
+	}
+
+	nlh = msg_init(TIPC_NL_NAME_TABLE_GET);
+	if (!nlh) {
+		fprintf(stderr, "error, message initialisation failed\n");
+		return -1;
+	}
+
+	new_json_obj(json);
+	rc = msg_dumpit(nlh, nametable_show_cb, &iteration);
+	delete_json_obj();
+
+	return rc;
+}
+
+void cmd_nametable_help(struct cmdl *cmdl)
+{
+	fprintf(stderr,
+		"Usage: %s nametable COMMAND\n\n"
+		"COMMANDS\n"
+		" show                  - Show nametable\n",
+		cmdl->argv[0]);
+}
+
+int cmd_nametable(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
+		  void *data)
+{
+	const struct cmd cmds[] = {
+		{ "show",	cmd_nametable_show,	NULL },
+		{ NULL }
+	};
+
+	return run_cmd(nlh, cmd, cmds, cmdl, NULL);
+}