#include <asm/system.h>
#include <asm/uaccess.h>
#include <linux/types.h>
-#include <linux/sched.h>
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/timer.h>
In this case data path is free of exclusive locks at all.
*/
-static kmem_cache_t *mrt_cachep __read_mostly;
+static struct kmem_cache *mrt_cachep __read_mostly;
static int ip_mr_forward(struct sk_buff *skb, struct mfc_cache *cache, int local);
static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert);
/*
* Delete a VIF entry
*/
-
+
static int vif_delete(int vifi)
{
struct vif_device *v;
atomic_dec(&cache_resolve_queue_len);
- while((skb=skb_dequeue(&c->mfc_un.unres.unresolved))) {
+ while ((skb=skb_dequeue(&c->mfc_un.unres.unresolved))) {
if (skb->nh.iph->version == 0) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
nlh->nlmsg_type = NLMSG_ERROR;
return -ENOBUFS;
break;
#endif
- case VIFF_TUNNEL:
+ case VIFF_TUNNEL:
dev = ipmr_new_tunnel(vifc);
if (!dev)
return -ENOBUFS;
*/
static struct mfc_cache *ipmr_cache_alloc(void)
{
- struct mfc_cache *c=kmem_cache_alloc(mrt_cachep, GFP_KERNEL);
- if(c==NULL)
+ struct mfc_cache *c=kmem_cache_zalloc(mrt_cachep, GFP_KERNEL);
+ if (c==NULL)
return NULL;
- memset(c, 0, sizeof(*c));
c->mfc_un.res.minvif = MAXVIFS;
return c;
}
static struct mfc_cache *ipmr_cache_alloc_unres(void)
{
- struct mfc_cache *c=kmem_cache_alloc(mrt_cachep, GFP_ATOMIC);
- if(c==NULL)
+ struct mfc_cache *c=kmem_cache_zalloc(mrt_cachep, GFP_ATOMIC);
+ if (c==NULL)
return NULL;
- memset(c, 0, sizeof(*c));
skb_queue_head_init(&c->mfc_un.unres.unresolved);
c->mfc_un.unres.expires = jiffies + 10*HZ;
return c;
/*
* A cache entry has gone into a resolved state from queued
*/
-
+
static void ipmr_cache_resolve(struct mfc_cache *uc, struct mfc_cache *c)
{
struct sk_buff *skb;
* Play the pending entries through our router
*/
- while((skb=__skb_dequeue(&uc->mfc_un.unres.unresolved))) {
+ while ((skb=__skb_dequeue(&uc->mfc_un.unres.unresolved))) {
if (skb->nh.iph->version == 0) {
struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr));
*
* Called under mrt_lock.
*/
-
+
static int ipmr_cache_report(struct sk_buff *pkt, vifi_t vifi, int assert)
{
struct sk_buff *skb;
#endif
skb = alloc_skb(128, GFP_ATOMIC);
- if(!skb)
+ if (!skb)
return -ENOBUFS;
#ifdef CONFIG_IP_PIMSM
And all this only to mangle msg->im_msgtype and
to set msg->im_mbz to "mbz" :-)
*/
- msg = (struct igmpmsg*)skb_push(skb, sizeof(struct iphdr));
- skb->nh.raw = skb->h.raw = (u8*)msg;
- memcpy(msg, pkt->nh.raw, sizeof(struct iphdr));
+ skb_push(skb, sizeof(struct iphdr));
+ skb_reset_network_header(skb);
+ skb->h.raw = skb->data;
+ msg = (struct igmpmsg *)skb->nh.raw;
+ memcpy(msg, skb_network_header(pkt), sizeof(struct iphdr));
msg->im_msgtype = IGMPMSG_WHOLEPKT;
msg->im_mbz = 0;
- msg->im_vif = reg_vif_num;
+ msg->im_vif = reg_vif_num;
skb->nh.iph->ihl = sizeof(struct iphdr) >> 2;
skb->nh.iph->tot_len = htons(ntohs(pkt->nh.iph->tot_len) + sizeof(struct iphdr));
- } else
+ } else
#endif
- {
-
+ {
+
/*
* Copy the IP header
*/
igmp->code = 0;
skb->nh.iph->tot_len=htons(skb->len); /* Fix the length */
skb->h.raw = skb->nh.raw;
- }
+ }
if (mroute_socket == NULL) {
kfree_skb(skb);
/*
* Queue a packet for resolution. It gets locked cache entry!
*/
-
+
static int
ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
{
* Reflect first query at mrouted.
*/
if ((err = ipmr_cache_report(skb, vifi, IGMPMSG_NOCACHE))<0) {
- /* If the report failed throw the cache entry
+ /* If the report failed throw the cache entry
out - Brad Parker
*/
spin_unlock_bh(&mfc_unres_lock);
return 0;
}
- if(!MULTICAST(mfc->mfcc_mcastgrp.s_addr))
+ if (!MULTICAST(mfc->mfcc_mcastgrp.s_addr))
return -EINVAL;
c=ipmr_cache_alloc();
/*
* Close the multicast socket, and clear the vif tables etc
*/
-
+
static void mroute_clean_tables(struct sock *sk)
{
int i;
-
+
/*
* Shut down all active vif entries
*/
- for(i=0; i<maxvif; i++) {
+ for (i=0; i<maxvif; i++) {
if (!(vif_table[i].flags&VIFF_STATIC))
vif_delete(i);
}
* that's how BSD mrouted happens to think. Maybe one day with a proper
* MOSPF/PIM router set up we can clean this up.
*/
-
+
int ip_mroute_setsockopt(struct sock *sk,int optname,char __user *optval,int optlen)
{
int ret;
struct vifctl vif;
struct mfcctl mfc;
-
- if(optname!=MRT_INIT)
- {
- if(sk!=mroute_socket && !capable(CAP_NET_ADMIN))
+
+ if (optname != MRT_INIT) {
+ if (sk != mroute_socket && !capable(CAP_NET_ADMIN))
return -EACCES;
}
- switch(optname)
- {
- case MRT_INIT:
- if (sk->sk_type != SOCK_RAW ||
- inet_sk(sk)->num != IPPROTO_IGMP)
- return -EOPNOTSUPP;
- if(optlen!=sizeof(int))
- return -ENOPROTOOPT;
-
- rtnl_lock();
- if (mroute_socket) {
- rtnl_unlock();
- return -EADDRINUSE;
- }
-
- ret = ip_ra_control(sk, 1, mrtsock_destruct);
- if (ret == 0) {
- write_lock_bh(&mrt_lock);
- mroute_socket=sk;
- write_unlock_bh(&mrt_lock);
+ switch (optname) {
+ case MRT_INIT:
+ if (sk->sk_type != SOCK_RAW ||
+ inet_sk(sk)->num != IPPROTO_IGMP)
+ return -EOPNOTSUPP;
+ if (optlen!=sizeof(int))
+ return -ENOPROTOOPT;
- ipv4_devconf.mc_forwarding++;
- }
- rtnl_unlock();
- return ret;
- case MRT_DONE:
- if (sk!=mroute_socket)
- return -EACCES;
- return ip_ra_control(sk, 0, NULL);
- case MRT_ADD_VIF:
- case MRT_DEL_VIF:
- if(optlen!=sizeof(vif))
- return -EINVAL;
- if (copy_from_user(&vif,optval,sizeof(vif)))
- return -EFAULT;
- if(vif.vifc_vifi >= MAXVIFS)
- return -ENFILE;
- rtnl_lock();
- if (optname==MRT_ADD_VIF) {
- ret = vif_add(&vif, sk==mroute_socket);
- } else {
- ret = vif_delete(vif.vifc_vifi);
- }
+ rtnl_lock();
+ if (mroute_socket) {
rtnl_unlock();
- return ret;
+ return -EADDRINUSE;
+ }
+
+ ret = ip_ra_control(sk, 1, mrtsock_destruct);
+ if (ret == 0) {
+ write_lock_bh(&mrt_lock);
+ mroute_socket=sk;
+ write_unlock_bh(&mrt_lock);
+
+ ipv4_devconf.mc_forwarding++;
+ }
+ rtnl_unlock();
+ return ret;
+ case MRT_DONE:
+ if (sk!=mroute_socket)
+ return -EACCES;
+ return ip_ra_control(sk, 0, NULL);
+ case MRT_ADD_VIF:
+ case MRT_DEL_VIF:
+ if (optlen!=sizeof(vif))
+ return -EINVAL;
+ if (copy_from_user(&vif,optval,sizeof(vif)))
+ return -EFAULT;
+ if (vif.vifc_vifi >= MAXVIFS)
+ return -ENFILE;
+ rtnl_lock();
+ if (optname==MRT_ADD_VIF) {
+ ret = vif_add(&vif, sk==mroute_socket);
+ } else {
+ ret = vif_delete(vif.vifc_vifi);
+ }
+ rtnl_unlock();
+ return ret;
/*
* Manipulate the forwarding caches. These live
* in a sort of kernel/user symbiosis.
*/
- case MRT_ADD_MFC:
- case MRT_DEL_MFC:
- if(optlen!=sizeof(mfc))
- return -EINVAL;
- if (copy_from_user(&mfc,optval, sizeof(mfc)))
- return -EFAULT;
- rtnl_lock();
- if (optname==MRT_DEL_MFC)
- ret = ipmr_mfc_delete(&mfc);
- else
- ret = ipmr_mfc_add(&mfc, sk==mroute_socket);
- rtnl_unlock();
- return ret;
+ case MRT_ADD_MFC:
+ case MRT_DEL_MFC:
+ if (optlen!=sizeof(mfc))
+ return -EINVAL;
+ if (copy_from_user(&mfc,optval, sizeof(mfc)))
+ return -EFAULT;
+ rtnl_lock();
+ if (optname==MRT_DEL_MFC)
+ ret = ipmr_mfc_delete(&mfc);
+ else
+ ret = ipmr_mfc_add(&mfc, sk==mroute_socket);
+ rtnl_unlock();
+ return ret;
/*
* Control PIM assert.
*/
- case MRT_ASSERT:
- {
- int v;
- if(get_user(v,(int __user *)optval))
- return -EFAULT;
- mroute_do_assert=(v)?1:0;
- return 0;
- }
+ case MRT_ASSERT:
+ {
+ int v;
+ if (get_user(v,(int __user *)optval))
+ return -EFAULT;
+ mroute_do_assert=(v)?1:0;
+ return 0;
+ }
#ifdef CONFIG_IP_PIMSM
- case MRT_PIM:
- {
- int v, ret;
- if(get_user(v,(int __user *)optval))
- return -EFAULT;
- v = (v)?1:0;
- rtnl_lock();
- ret = 0;
- if (v != mroute_do_pim) {
- mroute_do_pim = v;
- mroute_do_assert = v;
+ case MRT_PIM:
+ {
+ int v, ret;
+ if (get_user(v,(int __user *)optval))
+ return -EFAULT;
+ v = (v)?1:0;
+ rtnl_lock();
+ ret = 0;
+ if (v != mroute_do_pim) {
+ mroute_do_pim = v;
+ mroute_do_assert = v;
#ifdef CONFIG_IP_PIMSM_V2
- if (mroute_do_pim)
- ret = inet_add_protocol(&pim_protocol,
- IPPROTO_PIM);
- else
- ret = inet_del_protocol(&pim_protocol,
- IPPROTO_PIM);
- if (ret < 0)
- ret = -EAGAIN;
+ if (mroute_do_pim)
+ ret = inet_add_protocol(&pim_protocol,
+ IPPROTO_PIM);
+ else
+ ret = inet_del_protocol(&pim_protocol,
+ IPPROTO_PIM);
+ if (ret < 0)
+ ret = -EAGAIN;
#endif
- }
- rtnl_unlock();
- return ret;
}
+ rtnl_unlock();
+ return ret;
+ }
#endif
- /*
- * Spurious command, or MRT_VERSION which you cannot
- * set.
- */
- default:
- return -ENOPROTOOPT;
+ /*
+ * Spurious command, or MRT_VERSION which you cannot
+ * set.
+ */
+ default:
+ return -ENOPROTOOPT;
}
}
/*
* Getsock opt support for the multicast routing system.
*/
-
+
int ip_mroute_getsockopt(struct sock *sk,int optname,char __user *optval,int __user *optlen)
{
int olr;
int val;
- if(optname!=MRT_VERSION &&
+ if (optname!=MRT_VERSION &&
#ifdef CONFIG_IP_PIMSM
optname!=MRT_PIM &&
#endif
olr = min_t(unsigned int, olr, sizeof(int));
if (olr < 0)
return -EINVAL;
-
- if(put_user(olr,optlen))
+
+ if (put_user(olr,optlen))
return -EFAULT;
- if(optname==MRT_VERSION)
+ if (optname==MRT_VERSION)
val=0x0305;
#ifdef CONFIG_IP_PIMSM
- else if(optname==MRT_PIM)
+ else if (optname==MRT_PIM)
val=mroute_do_pim;
#endif
else
val=mroute_do_assert;
- if(copy_to_user(optval,&val,olr))
+ if (copy_to_user(optval,&val,olr))
return -EFAULT;
return 0;
}
/*
* The IP multicast ioctl support routines.
*/
-
+
int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg)
{
struct sioc_sg_req sr;
struct sioc_vif_req vr;
struct vif_device *vif;
struct mfc_cache *c;
-
- switch(cmd)
- {
- case SIOCGETVIFCNT:
- if (copy_from_user(&vr,arg,sizeof(vr)))
- return -EFAULT;
- if(vr.vifi>=maxvif)
- return -EINVAL;
- read_lock(&mrt_lock);
- vif=&vif_table[vr.vifi];
- if(VIF_EXISTS(vr.vifi)) {
- vr.icount=vif->pkt_in;
- vr.ocount=vif->pkt_out;
- vr.ibytes=vif->bytes_in;
- vr.obytes=vif->bytes_out;
- read_unlock(&mrt_lock);
- if (copy_to_user(arg,&vr,sizeof(vr)))
- return -EFAULT;
- return 0;
- }
+ switch (cmd) {
+ case SIOCGETVIFCNT:
+ if (copy_from_user(&vr,arg,sizeof(vr)))
+ return -EFAULT;
+ if (vr.vifi>=maxvif)
+ return -EINVAL;
+ read_lock(&mrt_lock);
+ vif=&vif_table[vr.vifi];
+ if (VIF_EXISTS(vr.vifi)) {
+ vr.icount=vif->pkt_in;
+ vr.ocount=vif->pkt_out;
+ vr.ibytes=vif->bytes_in;
+ vr.obytes=vif->bytes_out;
read_unlock(&mrt_lock);
- return -EADDRNOTAVAIL;
- case SIOCGETSGCNT:
- if (copy_from_user(&sr,arg,sizeof(sr)))
- return -EFAULT;
-
- read_lock(&mrt_lock);
- c = ipmr_cache_find(sr.src.s_addr, sr.grp.s_addr);
- if (c) {
- sr.pktcnt = c->mfc_un.res.pkt;
- sr.bytecnt = c->mfc_un.res.bytes;
- sr.wrong_if = c->mfc_un.res.wrong_if;
- read_unlock(&mrt_lock);
- if (copy_to_user(arg,&sr,sizeof(sr)))
- return -EFAULT;
- return 0;
- }
+ if (copy_to_user(arg,&vr,sizeof(vr)))
+ return -EFAULT;
+ return 0;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ case SIOCGETSGCNT:
+ if (copy_from_user(&sr,arg,sizeof(sr)))
+ return -EFAULT;
+
+ read_lock(&mrt_lock);
+ c = ipmr_cache_find(sr.src.s_addr, sr.grp.s_addr);
+ if (c) {
+ sr.pktcnt = c->mfc_un.res.pkt;
+ sr.bytecnt = c->mfc_un.res.bytes;
+ sr.wrong_if = c->mfc_un.res.wrong_if;
read_unlock(&mrt_lock);
- return -EADDRNOTAVAIL;
- default:
- return -ENOIOCTLCMD;
+
+ if (copy_to_user(arg,&sr,sizeof(sr)))
+ return -EFAULT;
+ return 0;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ default:
+ return -ENOIOCTLCMD;
}
}
if (event != NETDEV_UNREGISTER)
return NOTIFY_DONE;
v=&vif_table[0];
- for(ct=0;ct<maxvif;ct++,v++) {
+ for (ct=0;ct<maxvif;ct++,v++) {
if (v->dev==ptr)
vif_delete(ct);
}
* This avoids tunnel drivers and other mess and gives us the speed so
* important for multicast video.
*/
-
+
static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
{
- struct iphdr *iph = (struct iphdr *)skb_push(skb,sizeof(struct iphdr));
+ struct iphdr *iph;
+
+ skb_push(skb, sizeof(struct iphdr));
+ skb->h.ipiph = skb->nh.iph;
+ skb_reset_network_header(skb);
+ iph = skb->nh.iph;
iph->version = 4;
iph->tos = skb->nh.iph->tos;
ip_select_ident(iph, skb->dst, NULL);
ip_send_check(iph);
- skb->h.ipiph = skb->nh.iph;
- skb->nh.iph = iph;
memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
nf_reset(skb);
}
encap += LL_RESERVED_SPACE(dev) + rt->u.dst.header_len;
if (skb_cow(skb, encap)) {
- ip_rt_put(rt);
+ ip_rt_put(rt);
goto out_free;
}
* not mrouter) cannot join to more than one interface - it will
* result in receiving multiple packets.
*/
- NF_HOOK(PF_INET, NF_IP_FORWARD, skb, skb->dev, dev,
+ NF_HOOK(PF_INET, NF_IP_FORWARD, skb, skb->dev, dev,
ipmr_forward_finish);
return;
large chunk of pimd to kernel. Ough... --ANK
*/
(mroute_do_pim || cache->mfc_un.res.ttls[true_vifi] < 255) &&
- time_after(jiffies,
+ time_after(jiffies,
cache->mfc_un.res.last_assert + MFC_ASSERT_THRESH)) {
cache->mfc_un.res.last_assert = jiffies;
ipmr_cache_report(skb, true_vifi, IGMPMSG_WRONGVIF);
struct iphdr *encap;
struct net_device *reg_dev = NULL;
- if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
+ if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
goto drop;
pim = (struct igmphdr*)skb->h.raw;
- if (!mroute_do_pim ||
+ if (!mroute_do_pim ||
skb->len < sizeof(*pim) + sizeof(*encap) ||
- pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
+ pim->group != PIM_V1_VERSION || pim->code != PIM_V1_REGISTER)
goto drop;
encap = (struct iphdr*)(skb->h.raw + sizeof(struct igmphdr));
*/
if (!MULTICAST(encap->daddr) ||
encap->tot_len == 0 ||
- ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
+ ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
goto drop;
read_lock(&mrt_lock);
dev_hold(reg_dev);
read_unlock(&mrt_lock);
- if (reg_dev == NULL)
+ if (reg_dev == NULL)
goto drop;
skb->mac.raw = skb->nh.raw;
skb_pull(skb, (u8*)encap - skb->data);
- skb->nh.iph = (struct iphdr *)skb->data;
+ skb_reset_network_header(skb);
skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
struct iphdr *encap;
struct net_device *reg_dev = NULL;
- if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
+ if (!pskb_may_pull(skb, sizeof(*pim) + sizeof(*encap)))
goto drop;
pim = (struct pimreghdr*)skb->h.raw;
- if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
+ if (pim->type != ((PIM_VERSION<<4)|(PIM_REGISTER)) ||
(pim->flags&PIM_NULL_REGISTER) ||
- (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
- (u16)csum_fold(skb_checksum(skb, 0, skb->len, 0))))
+ (ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
+ csum_fold(skb_checksum(skb, 0, skb->len, 0))))
goto drop;
/* check if the inner packet is destined to mcast group */
encap = (struct iphdr*)(skb->h.raw + sizeof(struct pimreghdr));
if (!MULTICAST(encap->daddr) ||
encap->tot_len == 0 ||
- ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
+ ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
goto drop;
read_lock(&mrt_lock);
dev_hold(reg_dev);
read_unlock(&mrt_lock);
- if (reg_dev == NULL)
+ if (reg_dev == NULL)
goto drop;
skb->mac.raw = skb->nh.raw;
skb_pull(skb, (u8*)encap - skb->data);
- skb->nh.iph = (struct iphdr *)skb->data;
+ skb_reset_network_header(skb);
skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IP);
skb->ip_summed = 0;
return -ENOMEM;
}
- skb2->nh.raw = skb_push(skb2, sizeof(struct iphdr));
+ skb_push(skb2, sizeof(struct iphdr));
+ skb_reset_network_header(skb2);
skb2->nh.iph->ihl = sizeof(struct iphdr)>>2;
skb2->nh.iph->saddr = rt->rt_src;
skb2->nh.iph->daddr = rt->rt_dst;
return err;
}
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_PROC_FS
/*
* The /proc interfaces to multicast routing /proc/ip_mr_cache /proc/ip_mr_vif
*/
loff_t pos)
{
for (iter->ct = 0; iter->ct < maxvif; ++iter->ct) {
- if(!VIF_EXISTS(iter->ct))
+ if (!VIF_EXISTS(iter->ct))
continue;
- if (pos-- == 0)
+ if (pos-- == 0)
return &vif_table[iter->ct];
}
return NULL;
static void *ipmr_vif_seq_start(struct seq_file *seq, loff_t *pos)
{
read_lock(&mrt_lock);
- return *pos ? ipmr_vif_seq_idx(seq->private, *pos - 1)
+ return *pos ? ipmr_vif_seq_idx(seq->private, *pos - 1)
: SEQ_START_TOKEN;
}
++*pos;
if (v == SEQ_START_TOKEN)
return ipmr_vif_seq_idx(iter, 0);
-
+
while (++iter->ct < maxvif) {
- if(!VIF_EXISTS(iter->ct))
+ if (!VIF_EXISTS(iter->ct))
continue;
return &vif_table[iter->ct];
}
static int ipmr_vif_seq_show(struct seq_file *seq, void *v)
{
if (v == SEQ_START_TOKEN) {
- seq_puts(seq,
+ seq_puts(seq,
"Interface BytesIn PktsIn BytesOut PktsOut Flags Local Remote\n");
} else {
const struct vif_device *vif = v;
seq_printf(seq,
"%2Zd %-10s %8ld %7ld %8ld %7ld %05X %08X %08X\n",
vif - vif_table,
- name, vif->bytes_in, vif->pkt_in,
+ name, vif->bytes_in, vif->pkt_in,
vif->bytes_out, vif->pkt_out,
vif->flags, vif->local, vif->remote);
}
return 0;
}
-static struct seq_operations ipmr_vif_seq_ops = {
+static const struct seq_operations ipmr_vif_seq_ops = {
.start = ipmr_vif_seq_start,
.next = ipmr_vif_seq_next,
.stop = ipmr_vif_seq_stop,
struct seq_file *seq;
int rc = -ENOMEM;
struct ipmr_vif_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
-
+
if (!s)
goto out;
}
-static struct file_operations ipmr_vif_fops = {
+static const struct file_operations ipmr_vif_fops = {
.owner = THIS_MODULE,
.open = ipmr_vif_open,
.read = seq_read,
it->cache = mfc_cache_array;
read_lock(&mrt_lock);
- for (it->ct = 0; it->ct < MFC_LINES; it->ct++)
- for(mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next)
- if (pos-- == 0)
+ for (it->ct = 0; it->ct < MFC_LINES; it->ct++)
+ for (mfc = mfc_cache_array[it->ct]; mfc; mfc = mfc->next)
+ if (pos-- == 0)
return mfc;
read_unlock(&mrt_lock);
it->cache = &mfc_unres_queue;
spin_lock_bh(&mfc_unres_lock);
- for(mfc = mfc_unres_queue; mfc; mfc = mfc->next)
+ for (mfc = mfc_unres_queue; mfc; mfc = mfc->next)
if (pos-- == 0)
return mfc;
spin_unlock_bh(&mfc_unres_lock);
struct ipmr_mfc_iter *it = seq->private;
it->cache = NULL;
it->ct = 0;
- return *pos ? ipmr_mfc_seq_idx(seq->private, *pos - 1)
+ return *pos ? ipmr_mfc_seq_idx(seq->private, *pos - 1)
: SEQ_START_TOKEN;
}
if (mfc->next)
return mfc->next;
-
- if (it->cache == &mfc_unres_queue)
+
+ if (it->cache == &mfc_unres_queue)
goto end_of_list;
BUG_ON(it->cache != mfc_cache_array);
read_unlock(&mrt_lock);
it->cache = &mfc_unres_queue;
it->ct = 0;
-
+
spin_lock_bh(&mfc_unres_lock);
mfc = mfc_unres_queue;
- if (mfc)
+ if (mfc)
return mfc;
end_of_list:
int n;
if (v == SEQ_START_TOKEN) {
- seq_puts(seq,
+ seq_puts(seq,
"Group Origin Iif Pkts Bytes Wrong Oifs\n");
} else {
const struct mfc_cache *mfc = v;
const struct ipmr_mfc_iter *it = seq->private;
-
+
seq_printf(seq, "%08lX %08lX %-3d %8ld %8ld %8ld",
(unsigned long) mfc->mfc_mcastgrp,
(unsigned long) mfc->mfc_origin,
mfc->mfc_un.res.wrong_if);
if (it->cache != &mfc_unres_queue) {
- for(n = mfc->mfc_un.res.minvif;
- n < mfc->mfc_un.res.maxvif; n++ ) {
- if(VIF_EXISTS(n)
+ for (n = mfc->mfc_un.res.minvif;
+ n < mfc->mfc_un.res.maxvif; n++ ) {
+ if (VIF_EXISTS(n)
&& mfc->mfc_un.res.ttls[n] < 255)
- seq_printf(seq,
- " %2d:%-3d",
+ seq_printf(seq,
+ " %2d:%-3d",
n, mfc->mfc_un.res.ttls[n]);
}
}
return 0;
}
-static struct seq_operations ipmr_mfc_seq_ops = {
+static const struct seq_operations ipmr_mfc_seq_ops = {
.start = ipmr_mfc_seq_start,
.next = ipmr_mfc_seq_next,
.stop = ipmr_mfc_seq_stop,
struct seq_file *seq;
int rc = -ENOMEM;
struct ipmr_mfc_iter *s = kmalloc(sizeof(*s), GFP_KERNEL);
-
+
if (!s)
goto out;
}
-static struct file_operations ipmr_mfc_fops = {
+static const struct file_operations ipmr_mfc_fops = {
.owner = THIS_MODULE,
.open = ipmr_mfc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
};
-#endif
+#endif
#ifdef CONFIG_IP_PIMSM_V2
static struct net_protocol pim_protocol = {
/*
* Setup for IP multicast routing
*/
-
+
void __init ip_mr_init(void)
{
mrt_cachep = kmem_cache_create("ip_mrt_cache",
init_timer(&ipmr_expire_timer);
ipmr_expire_timer.function=ipmr_expire_process;
register_netdevice_notifier(&ip_mr_notifier);
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_PROC_FS
proc_net_fops_create("ip_mr_vif", 0, &ipmr_vif_fops);
proc_net_fops_create("ip_mr_cache", 0, &ipmr_mfc_fops);
-#endif
+#endif
}
projects / powerpc.git / blobdiff