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f043759d RA |
1 | /* |
2 | * socket.c TIPC socket 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 <errno.h> | |
14 | ||
15 | #include <linux/tipc.h> | |
16 | #include <linux/tipc_netlink.h> | |
17 | #include <linux/genetlink.h> | |
18 | #include <libmnl/libmnl.h> | |
19 | ||
20 | #include "cmdl.h" | |
21 | #include "msg.h" | |
22 | #include "socket.h" | |
23 | ||
24 | #define PORTID_STR_LEN 45 /* Four u32 and five delimiter chars */ | |
25 | ||
26 | static int publ_list_cb(const struct nlmsghdr *nlh, void *data) | |
27 | { | |
28 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); | |
29 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; | |
30 | struct nlattr *attrs[TIPC_NLA_SOCK_MAX + 1] = {}; | |
31 | ||
32 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); | |
33 | if (!info[TIPC_NLA_PUBL]) | |
34 | return MNL_CB_ERROR; | |
35 | ||
36 | mnl_attr_parse_nested(info[TIPC_NLA_PUBL], parse_attrs, attrs); | |
37 | ||
38 | printf(" bound to {%u,%u,%u}\n", | |
39 | mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_TYPE]), | |
40 | mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_LOWER]), | |
41 | mnl_attr_get_u32(attrs[TIPC_NLA_PUBL_UPPER])); | |
42 | ||
43 | return MNL_CB_OK; | |
44 | } | |
45 | ||
46 | static int publ_list(uint32_t sock) | |
47 | { | |
48 | struct nlmsghdr *nlh; | |
49 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
50 | struct nlattr *nest; | |
51 | ||
52 | if (!(nlh = msg_init(buf, TIPC_NL_PUBL_GET))) { | |
53 | fprintf(stderr, "error, message initialisation failed\n"); | |
54 | return -1; | |
55 | } | |
56 | ||
57 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_SOCK); | |
58 | mnl_attr_put_u32(nlh, TIPC_NLA_SOCK_REF, sock); | |
59 | mnl_attr_nest_end(nlh, nest); | |
60 | ||
61 | return msg_dumpit(nlh, publ_list_cb, NULL); | |
62 | } | |
63 | ||
64 | static int sock_list_cb(const struct nlmsghdr *nlh, void *data) | |
65 | { | |
66 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); | |
67 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; | |
68 | struct nlattr *attrs[TIPC_NLA_SOCK_MAX + 1] = {}; | |
69 | ||
70 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); | |
71 | if (!info[TIPC_NLA_SOCK]) | |
72 | return MNL_CB_ERROR; | |
73 | ||
74 | mnl_attr_parse_nested(info[TIPC_NLA_SOCK], parse_attrs, attrs); | |
75 | if (!attrs[TIPC_NLA_SOCK_REF]) | |
76 | return MNL_CB_ERROR; | |
77 | ||
78 | printf("socket %u\n", mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF])); | |
79 | ||
80 | if (attrs[TIPC_NLA_SOCK_CON]) { | |
81 | uint32_t node; | |
82 | struct nlattr *con[TIPC_NLA_CON_MAX + 1] = {}; | |
83 | ||
84 | mnl_attr_parse_nested(attrs[TIPC_NLA_SOCK_CON], parse_attrs, con); | |
85 | node = mnl_attr_get_u32(con[TIPC_NLA_CON_NODE]); | |
86 | ||
87 | printf(" connected to <%u.%u.%u:%u>", tipc_zone(node), | |
88 | tipc_cluster(node), tipc_node(node), | |
89 | mnl_attr_get_u32(con[TIPC_NLA_CON_SOCK])); | |
90 | ||
91 | if (con[TIPC_NLA_CON_FLAG]) | |
92 | printf(" via {%u,%u}\n", | |
93 | mnl_attr_get_u32(con[TIPC_NLA_CON_TYPE]), | |
94 | mnl_attr_get_u32(con[TIPC_NLA_CON_INST])); | |
95 | else | |
96 | printf("\n"); | |
97 | } else if (attrs[TIPC_NLA_SOCK_HAS_PUBL]) { | |
98 | publ_list(mnl_attr_get_u32(attrs[TIPC_NLA_SOCK_REF])); | |
99 | } | |
100 | ||
101 | return MNL_CB_OK; | |
102 | } | |
103 | ||
104 | static int cmd_socket_list(struct nlmsghdr *nlh, const struct cmd *cmd, | |
105 | struct cmdl *cmdl, void *data) | |
106 | { | |
107 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
108 | ||
109 | if (help_flag) { | |
110 | fprintf(stderr, "Usage: %s socket list\n", cmdl->argv[0]); | |
111 | return -EINVAL; | |
112 | } | |
113 | ||
114 | if (!(nlh = msg_init(buf, TIPC_NL_SOCK_GET))) { | |
115 | fprintf(stderr, "error, message initialisation failed\n"); | |
116 | return -1; | |
117 | } | |
118 | ||
119 | return msg_dumpit(nlh, sock_list_cb, NULL); | |
120 | } | |
121 | ||
122 | void cmd_socket_help(struct cmdl *cmdl) | |
123 | { | |
124 | fprintf(stderr, | |
125 | "Usage: %s socket COMMAND\n\n" | |
126 | "Commands:\n" | |
127 | " list - List sockets (ports)\n", | |
128 | cmdl->argv[0]); | |
129 | } | |
130 | ||
131 | int cmd_socket(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl, | |
132 | void *data) | |
133 | { | |
134 | const struct cmd cmds[] = { | |
135 | { "list", cmd_socket_list, NULL }, | |
136 | { NULL } | |
137 | }; | |
138 | ||
139 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); | |
140 | } |