This source file includes following definitions.
- dev_mc_upload
- dev_mc_delete
- dev_mc_add
- dev_mc_discard
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17 #include <asm/segment.h>
18 #include <asm/system.h>
19 #include <asm/bitops.h>
20 #include <linux/types.h>
21 #include <linux/kernel.h>
22 #include <linux/sched.h>
23 #include <linux/string.h>
24 #include <linux/mm.h>
25 #include <linux/socket.h>
26 #include <linux/sockios.h>
27 #include <linux/in.h>
28 #include <linux/errno.h>
29 #include <linux/interrupt.h>
30 #include <linux/if_ether.h>
31 #include <linux/inet.h>
32 #include <linux/netdevice.h>
33 #include <linux/etherdevice.h>
34 #include "ip.h"
35 #include "route.h"
36 #include <linux/skbuff.h>
37 #include "sock.h"
38 #include "arp.h"
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55
56 void dev_mc_upload(struct device *dev)
57 {
58 struct dev_mc_list *dmi;
59 char *data, *tmp;
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63
64
65 if(!(dev->flags&IFF_UP))
66 return;
67
68
69
70 if(dev->set_multicast_list==NULL)
71 return;
72
73 if(dev->flags&IFF_PROMISC)
74 {
75 dev->set_multicast_list(dev, -1, NULL);
76 return;
77 }
78
79 if(dev->mc_count==0)
80 {
81 dev->set_multicast_list(dev,0,NULL);
82 return;
83 }
84
85 data=kmalloc(dev->mc_count*dev->addr_len, GFP_KERNEL);
86 if(data==NULL)
87 {
88 printk("Unable to get memory to set multicast list on %s\n",dev->name);
89 return;
90 }
91 for(tmp = data, dmi=dev->mc_list;dmi!=NULL;dmi=dmi->next)
92 {
93 memcpy(tmp,dmi->dmi_addr, dmi->dmi_addrlen);
94 tmp+=dev->addr_len;
95 }
96 dev->set_multicast_list(dev,dev->mc_count,data);
97 kfree(data);
98 }
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103
104 void dev_mc_delete(struct device *dev, void *addr, int alen, int all)
105 {
106 struct dev_mc_list **dmi;
107 for(dmi=&dev->mc_list;*dmi!=NULL;dmi=&(*dmi)->next)
108 {
109 if(memcmp((*dmi)->dmi_addr,addr,(*dmi)->dmi_addrlen)==0 && alen==(*dmi)->dmi_addrlen)
110 {
111 struct dev_mc_list *tmp= *dmi;
112 if(--(*dmi)->dmi_users && !all)
113 return;
114 *dmi=(*dmi)->next;
115 dev->mc_count--;
116 kfree_s(tmp,sizeof(*tmp));
117 return;
118 }
119 }
120 dev_mc_upload(dev);
121 }
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126
127 void dev_mc_add(struct device *dev, void *addr, int alen, int newonly)
128 {
129 struct dev_mc_list *dmi;
130 for(dmi=dev->mc_list;dmi!=NULL;dmi=dmi->next)
131 {
132 if(memcmp(dmi->dmi_addr,addr,dmi->dmi_addrlen)==0 && dmi->dmi_addrlen==alen)
133 {
134 if(!newonly)
135 dmi->dmi_users++;
136 return;
137 }
138 }
139 dmi=(struct dev_mc_list *)kmalloc(sizeof(*dmi),GFP_KERNEL);
140 if(dmi==NULL)
141 return;
142 memcpy(dmi->dmi_addr, addr, alen);
143 dmi->dmi_addrlen=alen;
144 dmi->next=dev->mc_list;
145 dmi->dmi_users=1;
146 dev->mc_list=dmi;
147 dev->mc_count++;
148 dev_mc_upload(dev);
149 }
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154
155 void dev_mc_discard(struct device *dev)
156 {
157 while(dev->mc_list!=NULL)
158 {
159 struct dev_mc_list *tmp=dev->mc_list;
160 dev->mc_list=dev->mc_list->next;
161 kfree_s(tmp,sizeof(*tmp));
162 }
163 dev->mc_count=0;
164 }
165