1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
*
* Connection Manager
*
* Copyright (C) 2013 BWM CarIT GmbH.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/socket.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/genetlink.h>
#include <linux/netfilter/nfnetlink.h>
#include <net/if.h>
#include <string.h>
#include <stdio.h>
#include <inttypes.h>
#include <errno.h>
#include <glib.h>
#include "../src/shared/netlink.h"
#define NFGEN_DATA(nlh) ((void *)((char *)(nlh) + \
NLMSG_ALIGN(sizeof(struct nfgenmsg))))
#define NLA_DATA(nla) ((void *)((char*)(nla) + NLA_HDRLEN))
#define NLA_OK(nla,len) ((len) >= (int)sizeof(struct nlattr) && \
(nla)->nla_len >= sizeof(struct nlattr) && \
(nla)->nla_len <= (len))
#define NLA_NEXT(nla,attrlen) ((attrlen) -= NLA_ALIGN((nla)->nla_len), \
(struct nlattr*)(((char*)(nla)) + \
NLA_ALIGN((nla)->nla_len)))
static GMainLoop *mainloop;
static void do_debug(const char *str, void *user_data)
{
const char *prefix = user_data;
printf("%s%s\n", prefix, str);
}
static void getlink_callback(unsigned int error, uint16_t type, const void *data,
uint32_t len, void *user_data)
{
const struct ifinfomsg *ifi = data;
struct rtattr *rta;
int bytes;
char ifname[IF_NAMESIZE];
uint32_t index, flags;
g_assert_cmpuint(error, ==, 0);
bytes = len - NLMSG_ALIGN(sizeof(struct ifinfomsg));
memset(ifname, 0, sizeof(ifname));
index = ifi->ifi_index;
flags = ifi->ifi_flags;
for (rta = IFLA_RTA(ifi); RTA_OK(rta, bytes);
rta = RTA_NEXT(rta, bytes)) {
switch (rta->rta_type) {
case IFLA_IFNAME:
if (RTA_PAYLOAD(rta) <= IF_NAMESIZE)
strcpy(ifname, RTA_DATA(rta));
break;
}
}
printf("index=%d flags=0x%08x name=%s\n", index, flags, ifname);
g_main_loop_quit(mainloop);
}
static void test_case_1(void)
{
struct netlink_info *netlink;
struct ifinfomsg msg;
netlink = netlink_new(NETLINK_ROUTE);
printf("\n");
netlink_set_debug(netlink, do_debug, "[NETLINK] ", NULL);
memset(&msg, 0, sizeof(msg));
netlink_send(netlink, RTM_GETLINK, NLM_F_DUMP, &msg, sizeof(msg),
getlink_callback, NULL, NULL);
mainloop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(mainloop);
g_main_loop_unref(mainloop);
netlink_destroy(netlink);
}
int main(int argc, char *argv[])
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/netlink/Test case 1", test_case_1);
return g_test_run();
}
|