path: root/jni/src/pppoe_status.c (plain)
blob: f54292133c7b6c981fa82788f9e9b59fd867b7d9

1	#include <stdlib.h>
2	#include <stdio.h>
3	#include <stdarg.h>
4	#include <string.h>
5
6	#include <sys/types.h>
7	#include <errno.h>
8
9	#include <unistd.h>
10
11	#include <sys/socket.h>
12	#include <netinet/in.h>
13	#include <linux/if.h>
14	#include <linux/sockios.h>
15
16	#include <sys/un.h>
17	#include <android/log.h>
18	#include "pppoe_status.h"
19
20
21	#define LOCAL_TAG "PPPOE_STATUS"
22	//#define PRINTF printf
23	#define PRINTF
24
25	static int if_is_up(const char *if_name)
26	{
27	struct ifreq ifr;
28	int s, ret;
29
30	strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
31
32	s = socket(AF_INET, SOCK_DGRAM, 0);
33	if (s < 0) {
34	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,"if_is_up(%s): failed to create socket(%s)\n", if_name, strerror(errno));
35
36	return -1;
37	}
38	ret = ioctl(s, SIOCGIFFLAGS, &ifr);
39	if (ret < 0) {
40	ret = -errno;
41	//perror(ifr.ifr_name);
42	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,"if_is_up(%s): failed to ioctl(%s)\n", if_name, strerror(errno));
43	goto done;
44	}
45
46	ret = (ifr.ifr_flags &= IFF_UP) ? 1 : 0;
47	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
48	"if_is_up(%s) is %s\n", if_name, ret ? "UP" : "DOWN");
49
50	done:
51	close(s);
52	return ret;
53	}
54
55	#define PPP_IF_NAME "ppp0"
56
57	int get_pppoe_status( const char *phy_if_name)
58	{
59	int ret;
60
61	ret = if_is_up(phy_if_name);
62	if (ret < 0){
63	if ( ENODEV == -ret )
64	PRINTF( "No such device(%s)\n", phy_if_name );
65
66	PRINTF("ppp_status: DISCONNECTED\n");
67	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
68	"ppp_status: DISCONNECTED\n");
69
70	return PPP_STATUS_DISCONNECTED;
71	}
72
73	if (0 == ret ) {
74	PRINTF( "%s is DOWN\n", phy_if_name );
75
76	PRINTF("ppp_status: DISCONNECTED\n");
77	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
78	"ppp_status: DISCONNECTED\n");
79	return PPP_STATUS_DISCONNECTED;
80	}
81
82	ret = if_is_up(PPP_IF_NAME);
83	if (ret < 0){
84	if ( ENODEV == -ret )
85	PRINTF( "No such device(%s)\n", PPP_IF_NAME );
86
87	PRINTF("ppp_status: DISCONNECTED\n");
88	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
89	"ppp_status: DISCONNECTED\n");
90	return PPP_STATUS_DISCONNECTED;
91	}
92
93	if (0 == ret ) {
94	PRINTF("ppp_status: CONNECTING\n");
95
96	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
97	"ppp_status: CONNECTING\n");
98	return PPP_STATUS_CONNECTING;
99	}
100	else {
101	PRINTF("ppp_status: CONNECTED\n");
102	__android_log_print(ANDROID_LOG_ERROR, LOCAL_TAG,
103	"ppp_status: CONNECTED\n");
104	return PPP_STATUS_CONNECTED;
105	}
106	}
107
108	/*
109	int
110	main(int argc, char **argv)
111	{
112	get_pppoe_status(( 1 == argc ) ? "eth0" : argv[1]);
113
114	return 0;
115	}
116	*/
117