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
|
/*
*
* Copyright (c) 2011 Realtek Semiconductor Corp.
*
* 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.
*/
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/kernel_stat.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/net.h>
#include <linux/socket.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/string.h>
#include <net/ip.h>
#include <net/protocol.h>
#include <net/route.h>
#include <net/sock.h>
#include <net/arp.h>
#include <net/raw.h>
#include <net/checksum.h>
#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>
#include <linux/netlink.h>
#include <linux/inetdevice.h>
#include <linux/icmp.h>
#include <net/udp.h>
#include <net/tcp.h>
#include <net/rtl/rtl_types.h>
#ifdef CONFIG_NETFILTER
#include <net/netfilter/nf_conntrack.h>
#include <net/rtl/fastpath/fastpath_core.h>
#endif
#include <net/rtl/rtl865x_netif.h>
#include <net/rtl/rtl_nic.h>
struct sock *igmp_delete_sk = NULL;
struct test_struct
{
char data[30];
};
static int try_mac(const char *data, char array[],
int array_size, char sep)
{
uint32 i;
memset(array, 0, sizeof(array[0])*array_size);
/* Keep data pointing at next char. */
for (i = 0; i < array_size; data++) {
if (*data >= '0' && *data <= '9') {
array[i] = array[i]*16 + *data - '0';
}
else if(*data >='a' && *data <='f') {
array[i] = array[i]*16 + *data - 'a'+10;
}
else if(*data >='A' && *data <='F') {
array[i] = array[i]*16 + *data - 'A'+10;
}
else if (*data == sep)
i++;
else {
/* Unexpected character; true if it's the
terminator and we're finished. */
if (i == array_size - 1)
return 1;
printk("Char %u '%c' unexpected\n",\
i, *data);
return 0;
}
}
return 0;
}
extern int32 rtl_delIgmpRecordByMacAddr(uint8 *macAddr);
void igmp_delete (struct sk_buff *__skb)
{
int pid;
struct test_struct send_data,recv_data;
uint8 mac[6];
char *ptr;
pid=rtk_nlrecvmsg(__skb,sizeof(struct test_struct),&recv_data);
//printk("igmp_delete data:%s\n", recv_data.data);
memset(mac, 0, 6);
ptr = recv_data.data;
if(try_mac(recv_data.data, mac, 6, ':'))
{
rtl_delIgmpRecordByMacAddr(mac);
//printk("filter mac: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
sprintf(send_data.data,"clear igmp cache ok\n");
}
else
{
printk("clear igmp cache of bad format mac:%s\n", recv_data.data);
sprintf(send_data.data,"please input like 00:23:e8:79:99:32\n");
}
rtk_nlsendmsg(pid, igmp_delete_sk, sizeof(struct test_struct), &send_data);
return;
}
int igmp_delete_init_netlink(void)
{
igmp_delete_sk = netlink_kernel_create(&init_net, NETLINK_MULTICAST_DELETE, 0, igmp_delete, NULL, THIS_MODULE);
if (!igmp_delete_sk) {
printk(KERN_ERR "Netlink[Kernel] Cannot create netlink socket for igmp delete.\n");
return -EIO;
}
printk("Netlink[Kernel] create socket for igmp ok.\n");
return 0;
}
|
