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141 lines
3.6 KiB
141 lines
3.6 KiB
/*
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* socket.c TIPC socket 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.h>
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#include <linux/tipc_netlink.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 "socket.h"
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#define PORTID_STR_LEN 45 /* Four u32 and five delimiter chars */
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static int publ_list_cb(const struct nlmsghdr *nlh, void *data)
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{
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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_SOCK_MAX + 1] = {};
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mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
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if (!info[TIPC_NLA_PUBL])
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return MNL_CB_ERROR;
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mnl_attr_parse_nested(info[TIPC_NLA_PUBL], parse_attrs, attrs);
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printf(" bound to {%u,%u,%u}\n",
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mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_TYPE]),
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mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_LOWER]),
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mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_UPPER]));
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return MNL_CB_OK;
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}
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static int publ_list(uint32_t sock)
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{
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struct nlmsghdr *nlh;
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char buf[MNL_SOCKET_BUFFER_SIZE];
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struct nlattr *nest;
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if (!(nlh = msg_init(buf, TIPC_NL_PUBL_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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nest = mnl_attr_nest_start(nlh, TIPC_NLA_SOCK);
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mnl_attr_put_u32(nlh, TIPC_NLA_SOCK_REF, sock);
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mnl_attr_nest_end(nlh, nest);
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return msg_dumpit(nlh, publ_list_cb, NULL);
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}
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static int sock_list_cb(const struct nlmsghdr *nlh, void *data)
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{
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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_SOCK_MAX + 1] = {};
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mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info);
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if (!info[TIPC_NLA_SOCK])
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return MNL_CB_ERROR;
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mnl_attr_parse_nested(info[TIPC_NLA_SOCK], parse_attrs, attrs);
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if (!attrs[TIPC_NLA_SOCK_REF])
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return MNL_CB_ERROR;
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printf("socket %u\n", mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF]));
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if (attrs[TIPC_NLA_SOCK_CON]) {
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uint32_t node;
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struct nlattr *con[TIPC_NLA_CON_MAX + 1] = {};
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mnl_attr_parse_nested(attrs[TIPC_NLA_SOCK_CON], parse_attrs, con);
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node = mnl_attr_get_u32(con[TIPC_NLA_CON_NODE]);
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printf(" connected to <%u.%u.%u:%u>", tipc_zone(node),
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tipc_cluster(node), tipc_node(node),
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mnl_attr_get_u32(con[TIPC_NLA_CON_SOCK]));
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if (con[TIPC_NLA_CON_FLAG])
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printf(" via {%u,%u}\n",
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mnl_attr_get_u32(con[TIPC_NLA_CON_TYPE]),
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mnl_attr_get_u32(con[TIPC_NLA_CON_INST]));
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else
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printf("\n");
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} else if (attrs[TIPC_NLA_SOCK_HAS_PUBL]) {
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publ_list(mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF]));
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}
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return MNL_CB_OK;
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}
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static int cmd_socket_list(struct nlmsghdr *nlh, const struct cmd *cmd,
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struct cmdl *cmdl, void *data)
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{
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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 socket list\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_SOCK_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, sock_list_cb, NULL);
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}
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void cmd_socket_help(struct cmdl *cmdl)
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{
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fprintf(stderr,
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"Usage: %s socket COMMAND\n\n"
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"Commands:\n"
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" list - List sockets (ports)\n",
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cmdl->argv[0]);
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}
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int cmd_socket(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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{ "list", cmd_socket_list, 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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