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tipc is a user-space configuration tool for TIPC (Transparent Inter-process Communication). It utilizes the TIPC netlink API in the kernel to fetch data or perform actions. The tipc tool has somewhat similar syntax to the ip tool meaning that users of the ip tool should not feel that unfamiliar with this tool. Signed-off-by: Richard Alpe <richard.alpe@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/*
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* nametable.c TIPC nametable functionality.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Richard Alpe <richard.alpe@ericsson.com>
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <linux/tipc_netlink.h>
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#include <linux/tipc.h>
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#include <linux/genetlink.h>
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#include <libmnl/libmnl.h>
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#include "cmdl.h"
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#include "msg.h"
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#include "nametable.h"
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#define PORTID_STR_LEN 45 /* Four u32 and five delimiter chars */
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static int nametable_show_cb(const struct nlmsghdr *nlh, void *data)
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{
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int *iteration = data;
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char port_id[PORTID_STR_LEN];
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struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
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struct nlattr *info[TIPC_NLA_MAX + 1] = {};
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struct nlattr *attrs[TIPC_NLA_NAME_TABLE_MAX + 1] = {};
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struct nlattr *publ[TIPC_NLA_PUBL_MAX + 1] = {};
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const char *scope[] = { "", "zone", "cluster", "node" };
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mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
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if (!info[TIPC_NLA_NAME_TABLE])
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return MNL_CB_ERROR;
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mnl_attr_parse_nested(info[TIPC_NLA_NAME_TABLE], parse_attrs, attrs);
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if (!attrs[TIPC_NLA_NAME_TABLE_PUBL])
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return MNL_CB_ERROR;
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mnl_attr_parse_nested(attrs[TIPC_NLA_NAME_TABLE_PUBL], parse_attrs, publ);
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if (!publ[TIPC_NLA_NAME_TABLE_PUBL])
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return MNL_CB_ERROR;
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if (!*iteration)
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printf("%-10s %-10s %-10s %-26s %-10s\n",
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"Type", "Lower", "Upper", "Port Identity",
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"Publication Scope");
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(*iteration)++;
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snprintf(port_id, sizeof(port_id), "<%u.%u.%u:%u>",
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tipc_zone(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
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tipc_cluster(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
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tipc_node(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE])),
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_REF]));
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printf("%-10u %-10u %-10u %-26s %-12u",
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_TYPE]),
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_LOWER]),
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_UPPER]),
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port_id,
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_KEY]));
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printf("%s\n", scope[mnl_attr_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]);
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return MNL_CB_OK;
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}
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static int cmd_nametable_show(struct nlmsghdr *nlh, const struct cmd *cmd,
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struct cmdl *cmdl, void *data)
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{
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int iteration = 0;
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char buf[MNL_SOCKET_BUFFER_SIZE];
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if (help_flag) {
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fprintf(stderr, "Usage: %s nametable show\n", cmdl->argv[0]);
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return -EINVAL;
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}
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if (!(nlh = msg_init(buf, TIPC_NL_NAME_TABLE_GET))) {
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fprintf(stderr, "error, message initialisation failed\n");
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return -1;
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}
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return msg_dumpit(nlh, nametable_show_cb, &iteration);
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}
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void cmd_nametable_help(struct cmdl *cmdl)
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{
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fprintf(stderr,
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"Usage: %s nametable COMMAND\n\n"
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"COMMANDS\n"
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" show - Show nametable\n",
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cmdl->argv[0]);
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}
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int cmd_nametable(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
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void *data)
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{
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const struct cmd cmds[] = {
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{ "show", cmd_nametable_show, NULL },
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{ NULL }
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};
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return run_cmd(nlh, cmd, cmds, cmdl, NULL);
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}
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