LXR iproute2/tipc/peer.c

   1/*
   2 * peer.c       TIPC peer functionality.
   3 *
   4 *              This program is free software; you can redistribute it and/or
   5 *              modify it under the terms of the GNU General Public License
   6 *              as published by the Free Software Foundation; either version
   7 *              2 of the License, or (at your option) any later version.
   8 *
   9 * Authors:     Richard Alpe <richard.alpe@ericsson.com>
  10 */
  11
  12#include <stdio.h>
  13#include <stdlib.h>
  14#include <string.h>
  15#include <errno.h>
  16
  17#include <linux/tipc_netlink.h>
  18#include <linux/tipc.h>
  19#include <linux/genetlink.h>
  20#include <libmnl/libmnl.h>
  21
  22#include "cmdl.h"
  23#include "msg.h"
  24#include "misc.h"
  25#include "peer.h"
  26
  27static int cmd_peer_rm_addr(struct nlmsghdr *nlh, const struct cmd *cmd,
  28                            struct cmdl *cmdl, void *data)
  29{
  30        char *str;
  31        uint32_t addr;
  32        struct nlattr *nest;
  33        char buf[MNL_SOCKET_BUFFER_SIZE];
  34
  35        if ((cmdl->argc != cmdl->optind + 1) || help_flag) {
  36                fprintf(stderr, "Usage: %s peer remove address ADDRESS\n",
  37                        cmdl->argv[0]);
  38                return -EINVAL;
  39        }
  40
  41        str = shift_cmdl(cmdl);
  42
  43        /* First try legacy Z.C.N format, then integer format */
  44        addr = str2addr(str);
  45        if (!addr)
  46                addr = atoi(str);
  47        if (!addr)
  48                return -1;
  49
  50        if (!(nlh = msg_init(buf, TIPC_NL_PEER_REMOVE))) {
  51                fprintf(stderr, "error, message initialisation failed\n");
  52                return -1;
  53        }
  54
  55        nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
  56        mnl_attr_put_u32(nlh, TIPC_NLA_NET_ADDR, addr);
  57        mnl_attr_nest_end(nlh, nest);
  58
  59        return msg_doit(nlh, NULL, NULL);
  60}
  61
  62static int cmd_peer_rm_nodeid(struct nlmsghdr *nlh, const struct cmd *cmd,
  63                              struct cmdl *cmdl, void *data)
  64{
  65        char buf[MNL_SOCKET_BUFFER_SIZE];
  66        __u8 id[16] = {0,};
  67        __u64 *w0 = (__u64 *)&id[0];
  68        __u64 *w1 = (__u64 *)&id[8];
  69        struct nlattr *nest;
  70        char *str;
  71
  72        if (cmdl->argc != cmdl->optind + 1) {
  73                fprintf(stderr, "Usage: %s peer remove identity NODEID\n",
  74                        cmdl->argv[0]);
  75                return -EINVAL;
  76        }
  77
  78        str = shift_cmdl(cmdl);
  79        if (str2nodeid(str, id)) {
  80                fprintf(stderr, "Invalid node identity\n");
  81                return -EINVAL;
  82        }
  83
  84        nlh = msg_init(buf, TIPC_NL_PEER_REMOVE);
  85        if (!nlh) {
  86                fprintf(stderr, "error, message initialisation failed\n");
  87                return -1;
  88        }
  89
  90        nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
  91        mnl_attr_put_u64(nlh, TIPC_NLA_NET_NODEID, *w0);
  92        mnl_attr_put_u64(nlh, TIPC_NLA_NET_NODEID_W1, *w1);
  93        mnl_attr_nest_end(nlh, nest);
  94
  95        return msg_doit(nlh, NULL, NULL);
  96}
  97
  98static void cmd_peer_rm_help(struct cmdl *cmdl)
  99{
 100        fprintf(stderr, "Usage: %s peer remove PROPERTY\n\n"
 101                "PROPERTIES\n"
 102                " identity NODEID         - Remove peer node identity\n",
 103                cmdl->argv[0]);
 104}
 105
 106static void cmd_peer_rm_addr_help(struct cmdl *cmdl)
 107{
 108        fprintf(stderr, "Usage: %s peer remove address ADDRESS\n",
 109                cmdl->argv[0]);
 110}
 111
 112static void cmd_peer_rm_nodeid_help(struct cmdl *cmdl)
 113{
 114        fprintf(stderr, "Usage: %s peer remove identity NODEID\n",
 115                cmdl->argv[0]);
 116}
 117
 118static int cmd_peer_rm(struct nlmsghdr *nlh, const struct cmd *cmd,
 119                        struct cmdl *cmdl, void *data)
 120{
 121        const struct cmd cmds[] = {
 122                { "address",  cmd_peer_rm_addr,   cmd_peer_rm_addr_help },
 123                { "identity", cmd_peer_rm_nodeid, cmd_peer_rm_nodeid_help },
 124                { NULL }
 125        };
 126
 127        return run_cmd(nlh, cmd, cmds, cmdl, NULL);
 128}
 129
 130void cmd_peer_help(struct cmdl *cmdl)
 131{
 132        fprintf(stderr,
 133                "Usage: %s peer COMMAND [ARGS] ...\n\n"
 134                "COMMANDS\n"
 135                " remove                - Remove an offline peer node\n",
 136                cmdl->argv[0]);
 137}
 138
 139int cmd_peer(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
 140             void *data)
 141{
 142        const struct cmd cmds[] = {
 143                { "remove",     cmd_peer_rm,    cmd_peer_rm_help },
 144                { NULL }
 145        };
 146
 147        return run_cmd(nlh, cmd, cmds, cmdl, NULL);
 148}
 149