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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <ifaddrs.h>
#include "dev.h"
#include "str.h"
#include "sock.h"
#include "die.h"
#include "xutils.h"
int device_ifindex(const char *ifname)
{
int ret, sock, index;
struct ifreq ifr;
if (!strncmp("any", ifname, strlen("any")))
return 0;
sock = af_socket(AF_INET);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
ret = ioctl(sock, SIOCGIFINDEX, &ifr);
if (!ret)
index = ifr.ifr_ifindex;
else
index = -1;
close(sock);
return index;
}
static int __device_address6(const char *ifname, struct sockaddr_storage *ss)
{
int ret, family, found = -EINVAL;
struct ifaddrs *ifaddr, *ifa;
ret = getifaddrs(&ifaddr);
if (ret < 0)
panic("Cannot get device addresses for IPv6!\n");
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
family = ifa->ifa_addr->sa_family;
if (family != AF_INET6)
continue;
if (strcmp(ifa->ifa_name, ifname))
continue;
memcpy(ss, ifa->ifa_addr, sizeof(*ss));
found = 0;
break;
}
freeifaddrs(ifaddr);
return found;
}
int device_address(const char *ifname, int af, struct sockaddr_storage *ss)
{
int ret, sock;
struct ifreq ifr;
if (!ss)
return -EINVAL;
if (!strncmp("any", ifname, strlen("any")))
return -EINVAL;
if (af == AF_INET6)
return __device_address6(ifname, ss);
sock = af_socket(af);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
ifr.ifr_addr.sa_family = af;
ret = ioctl(sock, SIOCGIFADDR, &ifr);
if (!ret)
memcpy(ss, &ifr.ifr_addr, sizeof(ifr.ifr_addr));
close(sock);
return ret;
}
int device_mtu(const char *ifname)
{
int ret, sock, mtu;
struct ifreq ifr;
sock = af_socket(AF_INET);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
ret = ioctl(sock, SIOCGIFMTU, &ifr);
if (!ret)
mtu = ifr.ifr_mtu;
else
mtu = 0;
close(sock);
return mtu;
}
short device_get_flags(const char *ifname)
{
short flags;
int ret, sock;
struct ifreq ifr;
sock = af_socket(AF_INET);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
ret = ioctl(sock, SIOCGIFFLAGS, &ifr);
if (!ret)
flags = ifr.ifr_flags;
else
flags = 0;
close(sock);
return flags;
}
void device_set_flags(const char *ifname, const short flags)
{
int ret, sock;
struct ifreq ifr;
sock = af_socket(AF_INET);
memset(&ifr, 0, sizeof(ifr));
strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
ifr.ifr_flags = flags;
ret = ioctl(sock, SIOCSIFFLAGS, &ifr);
if (ret < 0)
panic("Cannot set NIC flags!\n");
close(sock);
}
int device_up_and_running(char *ifname)
{
if (!ifname)
return -EINVAL;
if (!strncmp("any", ifname, strlen("any")))
return 1;
return (device_get_flags(ifname) & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING);
}
u32 device_bitrate(const char *ifname)
{
u32 speed_c, speed_w;
speed_c = ethtool_bitrate(ifname);
speed_w = wireless_bitrate(ifname);
return (speed_c == 0 ? speed_w : speed_c);
}
|
