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1304f50a5b
Add json output support for nametable show
Example output:
$tipc -j -p nametable show
[ {
"type": 0,
"lower": 16781313,
"upper": 16781313,
"scope": "zone",
"port": 0,
"node": ""
},{
"type": 0,
"lower": 16781416,
"upper": 16781416,
"scope": "cluster",
"port": 0,
"node": ""
} ]
v2:
Replace variable 'json_flag' by 'json' declared in include/utils.h
Add new parameter '-pretty' to support pretty output
v3:
Update manual page
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: David Ahern <dsahern@gmail.com>
119 lines
3.2 KiB
C
119 lines
3.2 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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#include "utils.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 && !is_json_context())
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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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open_json_object(NULL);
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print_uint(PRINT_ANY, "type", "%-10u",
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_TYPE]));
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print_uint(PRINT_ANY, "lower", "%-10u",
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_LOWER]));
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print_uint(PRINT_ANY, "upper", "%-10u",
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_UPPER]));
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print_string(PRINT_ANY, "scope", "%-8s",
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scope[mnl_attr_get_u32(publ[TIPC_NLA_PUBL_SCOPE])]);
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print_uint(PRINT_ANY, "port", "%-10u",
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mnl_attr_get_u32(publ[TIPC_NLA_PUBL_REF]));
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print_string(PRINT_ANY, "node", "%s", str);
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print_string(PRINT_FP, NULL, "\n", "");
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close_json_object();
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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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int rc = 0;
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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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new_json_obj(json);
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rc = msg_dumpit(nlh, nametable_show_cb, &iteration);
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delete_json_obj();
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return rc;
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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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