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24#include <linux/module.h>
25#include <asm/uaccess.h>
26#include <asm/system.h>
27#include <linux/bitops.h>
28#include <linux/types.h>
29#include <linux/kernel.h>
30#include <linux/string.h>
31#include <linux/mm.h>
32#include <linux/socket.h>
33#include <linux/sockios.h>
34#include <linux/in.h>
35#include <linux/errno.h>
36#include <linux/interrupt.h>
37#include <linux/if_ether.h>
38#include <linux/inet.h>
39#include <linux/netdevice.h>
40#include <linux/etherdevice.h>
41#include <linux/proc_fs.h>
42#include <linux/seq_file.h>
43#include <linux/init.h>
44#include <net/net_namespace.h>
45#include <net/ip.h>
46#include <net/route.h>
47#include <linux/skbuff.h>
48#include <net/sock.h>
49#include <net/arp.h>
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71int dev_mc_delete(struct net_device *dev, void *addr, int alen, int glbl)
72{
73 int err;
74
75 netif_addr_lock_bh(dev);
76 err = __dev_addr_delete(&dev->mc_list, &dev->mc_count,
77 addr, alen, glbl);
78 if (!err) {
79
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82
83
84 __dev_set_rx_mode(dev);
85 }
86 netif_addr_unlock_bh(dev);
87 return err;
88}
89
90
91
92
93
94int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
95{
96 int err;
97
98 netif_addr_lock_bh(dev);
99 err = __dev_addr_add(&dev->mc_list, &dev->mc_count, addr, alen, glbl);
100 if (!err)
101 __dev_set_rx_mode(dev);
102 netif_addr_unlock_bh(dev);
103 return err;
104}
105
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117
118int dev_mc_sync(struct net_device *to, struct net_device *from)
119{
120 int err = 0;
121
122 netif_addr_lock_bh(to);
123 err = __dev_addr_sync(&to->mc_list, &to->mc_count,
124 &from->mc_list, &from->mc_count);
125 if (!err)
126 __dev_set_rx_mode(to);
127 netif_addr_unlock_bh(to);
128
129 return err;
130}
131EXPORT_SYMBOL(dev_mc_sync);
132
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142
143
144void dev_mc_unsync(struct net_device *to, struct net_device *from)
145{
146 netif_addr_lock_bh(from);
147 netif_addr_lock(to);
148
149 __dev_addr_unsync(&to->mc_list, &to->mc_count,
150 &from->mc_list, &from->mc_count);
151 __dev_set_rx_mode(to);
152
153 netif_addr_unlock(to);
154 netif_addr_unlock_bh(from);
155}
156EXPORT_SYMBOL(dev_mc_unsync);
157
158#ifdef CONFIG_PROC_FS
159static int dev_mc_seq_show(struct seq_file *seq, void *v)
160{
161 struct dev_addr_list *m;
162 struct net_device *dev = v;
163
164 if (v == SEQ_START_TOKEN)
165 return 0;
166
167 netif_addr_lock_bh(dev);
168 for (m = dev->mc_list; m; m = m->next) {
169 int i;
170
171 seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
172 dev->name, m->dmi_users, m->dmi_gusers);
173
174 for (i = 0; i < m->dmi_addrlen; i++)
175 seq_printf(seq, "%02x", m->dmi_addr[i]);
176
177 seq_putc(seq, '\n');
178 }
179 netif_addr_unlock_bh(dev);
180 return 0;
181}
182
183static const struct seq_operations dev_mc_seq_ops = {
184 .start = dev_seq_start,
185 .next = dev_seq_next,
186 .stop = dev_seq_stop,
187 .show = dev_mc_seq_show,
188};
189
190static int dev_mc_seq_open(struct inode *inode, struct file *file)
191{
192 return seq_open_net(inode, file, &dev_mc_seq_ops,
193 sizeof(struct seq_net_private));
194}
195
196static const struct file_operations dev_mc_seq_fops = {
197 .owner = THIS_MODULE,
198 .open = dev_mc_seq_open,
199 .read = seq_read,
200 .llseek = seq_lseek,
201 .release = seq_release_net,
202};
203
204#endif
205
206static int __net_init dev_mc_net_init(struct net *net)
207{
208 if (!proc_net_fops_create(net, "dev_mcast", 0, &dev_mc_seq_fops))
209 return -ENOMEM;
210 return 0;
211}
212
213static void __net_exit dev_mc_net_exit(struct net *net)
214{
215 proc_net_remove(net, "dev_mcast");
216}
217
218static struct pernet_operations __net_initdata dev_mc_net_ops = {
219 .init = dev_mc_net_init,
220 .exit = dev_mc_net_exit,
221};
222
223void __init dev_mcast_init(void)
224{
225 register_pernet_subsys(&dev_mc_net_ops);
226}
227
228EXPORT_SYMBOL(dev_mc_add);
229EXPORT_SYMBOL(dev_mc_delete);
230