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/*
* node.c TIPC node functionality.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Authors: Richard Alpe <richard.alpe@ericsson.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <linux/tipc_netlink.h>
#include <linux/tipc.h>
#include <linux/genetlink.h>
#include <libmnl/libmnl.h>
#include "cmdl.h"
#include "msg.h"
#include "misc.h"
#include "node.h"
static int node_list_cb(const struct nlmsghdr *nlh, void *data)
{
uint32_t addr;
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_NODE_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_NODE])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_NODE], parse_attrs, attrs);
if (!attrs[TIPC_NLA_NODE_ADDR])
return MNL_CB_ERROR;
addr = mnl_attr_get_u32(attrs[TIPC_NLA_NODE_ADDR]);
printf("<%u.%u.%u>: ",
tipc_zone(addr),
tipc_cluster(addr),
tipc_node(addr));
if (attrs[TIPC_NLA_NODE_UP])
printf("up\n");
else
printf("down\n");
return MNL_CB_OK;
}
static int cmd_node_list(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
if (help_flag) {
fprintf(stderr, "Usage: %s node list\n", cmdl->argv[0]);
return -EINVAL;
}
if (!(nlh = msg_init(buf, TIPC_NL_NODE_GET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
return msg_dumpit(nlh, node_list_cb, NULL);
}
static int cmd_node_set_addr(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char *str;
uint32_t addr;
struct nlattr *nest;
char buf[MNL_SOCKET_BUFFER_SIZE];
if (cmdl->argc != cmdl->optind + 1) {
fprintf(stderr, "Usage: %s node set address ADDRESS\n",
cmdl->argv[0]);
return -EINVAL;
}
str = shift_cmdl(cmdl);
addr = str2addr(str);
if (!addr)
return -1;
if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
mnl_attr_put_u32(nlh, TIPC_NLA_NET_ADDR, addr);
mnl_attr_nest_end(nlh, nest);
return msg_doit(nlh, NULL, NULL);
}
static int cmd_node_get_addr(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int sk;
socklen_t sz = sizeof(struct sockaddr_tipc);
struct sockaddr_tipc addr;
if (!(sk = socket(AF_TIPC, SOCK_RDM, 0))) {
fprintf(stderr, "opening TIPC socket: %s\n", strerror(errno));
return -1;
}
if (getsockname(sk, (struct sockaddr *)&addr, &sz) < 0) {
fprintf(stderr, "getting TIPC socket address: %s\n",
strerror(errno));
close(sk);
return -1;
}
close(sk);
printf("<%u.%u.%u>\n",
tipc_zone(addr.addr.id.node),
tipc_cluster(addr.addr.id.node),
tipc_node(addr.addr.id.node));
return 0;
}
static int netid_get_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
struct nlattr *info[TIPC_NLA_MAX + 1] = {};
struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {};
mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
if (!info[TIPC_NLA_NET])
return MNL_CB_ERROR;
mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs);
if (!attrs[TIPC_NLA_NET_ID])
return MNL_CB_ERROR;
printf("%u\n", mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID]));
return MNL_CB_OK;
}
static int cmd_node_get_netid(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
char buf[MNL_SOCKET_BUFFER_SIZE];
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (!(nlh = msg_init(buf, TIPC_NL_NET_GET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
return msg_dumpit(nlh, netid_get_cb, NULL);
}
static int cmd_node_set_netid(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
int netid;
char buf[MNL_SOCKET_BUFFER_SIZE];
struct nlattr *nest;
if (help_flag) {
(cmd->help)(cmdl);
return -EINVAL;
}
if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
}
if (cmdl->argc != cmdl->optind + 1) {
fprintf(stderr, "Usage: %s node set netid NETID\n",
cmdl->argv[0]);
return -EINVAL;
}
netid = atoi(shift_cmdl(cmdl));
nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
mnl_attr_put_u32(nlh, TIPC_NLA_NET_ID, netid);
mnl_attr_nest_end(nlh, nest);
return msg_doit(nlh, NULL, NULL);
}
static void cmd_node_set_help(struct cmdl *cmdl)
{
fprintf(stderr,
"Usage: %s node set PROPERTY\n\n"
"PROPERTIES\n"
" address ADDRESS - Set local address\n"
" netid NETID - Set local netid\n",
cmdl->argv[0]);
}
static int cmd_node_set(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ "address", cmd_node_set_addr, NULL },
{ "netid", cmd_node_set_netid, NULL },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
static void cmd_node_get_help(struct cmdl *cmdl)
{
fprintf(stderr,
"Usage: %s node get PROPERTY\n\n"
"PROPERTIES\n"
" address - Get local address\n"
" netid - Get local netid\n",
cmdl->argv[0]);
}
static int cmd_node_get(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, void *data)
{
const struct cmd cmds[] = {
{ "address", cmd_node_get_addr, NULL },
{ "netid", cmd_node_get_netid, NULL },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
void cmd_node_help(struct cmdl *cmdl)
{
fprintf(stderr,
"Usage: %s media COMMAND [ARGS] ...\n\n"
"COMMANDS\n"
" list - List remote nodes\n"
" get - Get local node parameters\n"
" set - Set local node parameters\n",
cmdl->argv[0]);
}
int cmd_node(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
void *data)
{
const struct cmd cmds[] = {
{ "list", cmd_node_list, NULL },
{ "get", cmd_node_get, cmd_node_get_help },
{ "set", cmd_node_set, cmd_node_set_help },
{ NULL }
};
return run_cmd(nlh, cmd, cmds, cmdl, NULL);
}
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