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5947046dd9
We make it easier for users to correlate between 128-bit node identities and 32-bit node hash number by extending the 'node list' command to also show the hash number. We also improve the 'nametable show' command to show the node identity instead of the node hash number. Since the former potentially is much longer than the latter, we make room for it by eliminating the (to the user) irrelevant publication key. We also reorder some of the columns so that the node id comes last, since this looks nicer and is more logical. Signed-off-by: David Ahern <dsahern@gmail.com>
106 lines
2.8 KiB
C
106 lines
2.8 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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#include "misc.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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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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char str[33] = {0,};
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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 %-8s %-10s %-33s\n",
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"Type", "Lower", "Upper", "Scope", "Port",
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"Node");
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(*iteration)++;
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hash2nodestr(mnl_attr_get_u32(publ[TIPC_NLA_PUBL_NODE]), str);
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printf("%-10u %-10u %-10u %-8s %-10u %s\n",
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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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scope[mnl_attr_get_u32(publ[TIPC_NLA_PUBL_SCOPE])],
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_REF]),
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str);
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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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