* Authors:
* Pedro Roque <roque@di.fc.ul.pt>
*
- * $Id: mcast.c,v 1.40 2002/02/08 03:57:19 davem Exp $
- *
* Based on linux/ipv4/igmp.c and linux/ipv4/ip_sockglue.c
*
* This program is free software; you can redistribute it and/or
#define IGMP6_UNSOLICITED_IVAL (10*HZ)
#define MLD_QRV_DEFAULT 2
-#define MLD_V1_SEEN(idev) (ipv6_devconf.force_mld_version == 1 || \
+#define MLD_V1_SEEN(idev) (dev_net((idev)->dev)->ipv6.devconf_all->force_mld_version == 1 || \
(idev)->cnf.force_mld_version == 1 || \
((idev)->mc_v1_seen && \
time_before(jiffies, (idev)->mc_v1_seen)))
((MLDV2_MASK(value, nbmant) | (1<<(nbmant))) << \
(MLDV2_MASK((value) >> (nbmant), nbexp) + (nbexp))))
-#define MLDV2_QQIC(value) MLDV2_EXP(0x80, 4, 3, value)
#define MLDV2_MRC(value) MLDV2_EXP(0x8000, 12, 3, value)
#define IPV6_MLD_MAX_MSF 64
dev = dev_get_by_index(net, ifindex);
if (!dev)
- return NULL;
+ goto nodev;
idev = in6_dev_get(dev);
- if (!idev) {
- dev_put(dev);
- return NULL;
- }
+ if (!idev)
+ goto release;
read_lock_bh(&idev->lock);
- if (idev->dead) {
- read_unlock_bh(&idev->lock);
- in6_dev_put(idev);
- dev_put(dev);
- return NULL;
- }
+ if (idev->dead)
+ goto unlock_release;
+
return idev;
+
+unlock_release:
+ read_unlock_bh(&idev->lock);
+ in6_dev_put(idev);
+release:
+ dev_put(dev);
+nodev:
+ return NULL;
}
void ipv6_sock_mc_close(struct sock *sk)
int pmclocked = 0;
int err;
- if (pgsr->gsr_group.ss_family != AF_INET6 ||
- pgsr->gsr_source.ss_family != AF_INET6)
- return -EINVAL;
-
source = &((struct sockaddr_in6 *)&pgsr->gsr_source)->sin6_addr;
group = &((struct sockaddr_in6 *)&pgsr->gsr_group)->sin6_addr;
IPV6_TLV_PADN, 0 };
/* we assume size > sizeof(ra) here */
- skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
+ skb = sock_alloc_send_skb(sk, size + LL_ALLOCATED_SPACE(dev), 1, &err);
if (!skb)
return NULL;
struct net *net = dev_net(skb->dev);
int err;
struct flowi fl;
+ struct dst_entry *dst;
+
+ IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTREQUESTS);
payload_len = (skb->tail - skb->network_header) - sizeof(*pip6);
mldlen = skb->tail - skb->transport_header;
pip6->payload_len = htons(payload_len);
IPPROTO_ICMPV6, csum_partial(skb_transport_header(skb),
mldlen, 0));
- skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+ dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
- if (!skb->dst) {
+ if (!dst) {
err = -ENOMEM;
goto err_out;
}
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(&skb->dst, &fl, NULL, 0);
+ err = xfrm_lookup(net, &dst, &fl, NULL, 0);
+ skb_dst_set(skb, dst);
if (err)
goto err_out;
+ payload_len = skb->len;
+
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
out:
if (!err) {
- ICMP6MSGOUT_INC_STATS_BH(idev, ICMPV6_MLD2_REPORT);
- ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
- IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTMCASTPKTS);
+ ICMP6MSGOUT_INC_STATS_BH(net, idev, ICMPV6_MLD2_REPORT);
+ ICMP6_INC_STATS_BH(net, idev, ICMP6_MIB_OUTMSGS);
+ IP6_UPD_PO_STATS_BH(net, idev, IPSTATS_MIB_OUTMCAST, payload_len);
} else
- IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTDISCARDS);
+ IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_OUTDISCARDS);
if (likely(idev != NULL))
in6_dev_put(idev);
IPV6_TLV_ROUTERALERT, 2, 0, 0,
IPV6_TLV_PADN, 0 };
struct flowi fl;
+ struct dst_entry *dst;
- rcu_read_lock();
- IP6_INC_STATS(__in6_dev_get(dev),
- IPSTATS_MIB_OUTREQUESTS);
- rcu_read_unlock();
if (type == ICMPV6_MGM_REDUCTION)
snd_addr = &in6addr_linklocal_allrouters;
else
payload_len = len + sizeof(ra);
full_len = sizeof(struct ipv6hdr) + payload_len;
- skb = sock_alloc_send_skb(sk, LL_RESERVED_SPACE(dev) + full_len, 1, &err);
+ rcu_read_lock();
+ IP6_UPD_PO_STATS(net, __in6_dev_get(dev),
+ IPSTATS_MIB_OUT, full_len);
+ rcu_read_unlock();
+
+ skb = sock_alloc_send_skb(sk, LL_ALLOCATED_SPACE(dev) + full_len, 1, &err);
if (skb == NULL) {
rcu_read_lock();
- IP6_INC_STATS(__in6_dev_get(dev),
+ IP6_INC_STATS(net, __in6_dev_get(dev),
IPSTATS_MIB_OUTDISCARDS);
rcu_read_unlock();
return;
hdr->icmp6_cksum = csum_ipv6_magic(saddr, snd_addr, len,
IPPROTO_ICMPV6,
- csum_partial((__u8 *) hdr, len, 0));
+ csum_partial(hdr, len, 0));
idev = in6_dev_get(skb->dev);
- skb->dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
- if (!skb->dst) {
+ dst = icmp6_dst_alloc(skb->dev, NULL, &ipv6_hdr(skb)->daddr);
+ if (!dst) {
err = -ENOMEM;
goto err_out;
}
&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
skb->dev->ifindex);
- err = xfrm_lookup(&skb->dst, &fl, NULL, 0);
+ err = xfrm_lookup(net, &dst, &fl, NULL, 0);
if (err)
goto err_out;
+ skb_dst_set(skb, dst);
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
out:
if (!err) {
- ICMP6MSGOUT_INC_STATS(idev, type);
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
+ ICMP6MSGOUT_INC_STATS(net, idev, type);
+ ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);
+ IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUTMCAST, full_len);
} else
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+ IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);
if (likely(idev != NULL))
in6_dev_put(idev);
for (j=0; j<i; j++)
(void) ip6_mc_del1_src(pmc, sfmode, &psfsrc[i]);
} else if (isexclude != (pmc->mca_sfcount[MCAST_EXCLUDE] != 0)) {
- struct inet6_dev *idev = pmc->idev;
struct ip6_sf_list *psf;
/* filter mode change */
ma_put(ma);
}
+/* Device changing type */
+
+void ipv6_mc_unmap(struct inet6_dev *idev)
+{
+ struct ifmcaddr6 *i;
+
+ /* Install multicast list, except for all-nodes (already installed) */
+
+ read_lock_bh(&idev->lock);
+ for (i = idev->mc_list; i; i = i->next)
+ igmp6_group_dropped(i);
+ read_unlock_bh(&idev->lock);
+}
+
+void ipv6_mc_remap(struct inet6_dev *idev)
+{
+ ipv6_mc_up(idev);
+}
+
/* Device going down */
void ipv6_mc_down(struct inet6_dev *idev)
struct net *net = seq_file_net(seq);
state->idev = NULL;
- for_each_netdev(net, state->dev) {
+ for_each_netdev_rcu(net, state->dev) {
struct inet6_dev *idev;
- idev = in6_dev_get(state->dev);
+ idev = __in6_dev_get(state->dev);
if (!idev)
continue;
read_lock_bh(&idev->lock);
break;
}
read_unlock_bh(&idev->lock);
- in6_dev_put(idev);
}
return im;
}
im = im->next;
while (!im) {
- if (likely(state->idev != NULL)) {
+ if (likely(state->idev != NULL))
read_unlock_bh(&state->idev->lock);
- in6_dev_put(state->idev);
- }
- state->dev = next_net_device(state->dev);
+
+ state->dev = next_net_device_rcu(state->dev);
if (!state->dev) {
state->idev = NULL;
break;
}
- state->idev = in6_dev_get(state->dev);
+ state->idev = __in6_dev_get(state->dev);
if (!state->idev)
continue;
read_lock_bh(&state->idev->lock);
}
static void *igmp6_mc_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(dev_base_lock)
+ __acquires(RCU)
{
- read_lock(&dev_base_lock);
+ rcu_read_lock();
return igmp6_mc_get_idx(seq, *pos);
}
static void *igmp6_mc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
- struct ifmcaddr6 *im;
- im = igmp6_mc_get_next(seq, v);
+ struct ifmcaddr6 *im = igmp6_mc_get_next(seq, v);
+
++*pos;
return im;
}
static void igmp6_mc_seq_stop(struct seq_file *seq, void *v)
- __releases(dev_base_lock)
+ __releases(RCU)
{
struct igmp6_mc_iter_state *state = igmp6_mc_seq_private(seq);
+
if (likely(state->idev != NULL)) {
read_unlock_bh(&state->idev->lock);
- in6_dev_put(state->idev);
state->idev = NULL;
}
state->dev = NULL;
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
static int igmp6_mc_seq_show(struct seq_file *seq, void *v)
struct igmp6_mc_iter_state *state = igmp6_mc_seq_private(seq);
seq_printf(seq,
- "%-4d %-15s " NIP6_SEQFMT " %5d %08X %ld\n",
+ "%-4d %-15s %pi6 %5d %08X %ld\n",
state->dev->ifindex, state->dev->name,
- NIP6(im->mca_addr),
+ &im->mca_addr,
im->mca_users, im->mca_flags,
(im->mca_flags&MAF_TIMER_RUNNING) ?
jiffies_to_clock_t(im->mca_timer.expires-jiffies) : 0);
state->idev = NULL;
state->im = NULL;
- for_each_netdev(net, state->dev) {
+ for_each_netdev_rcu(net, state->dev) {
struct inet6_dev *idev;
- idev = in6_dev_get(state->dev);
+ idev = __in6_dev_get(state->dev);
if (unlikely(idev == NULL))
continue;
read_lock_bh(&idev->lock);
spin_unlock_bh(&im->mca_lock);
}
read_unlock_bh(&idev->lock);
- in6_dev_put(idev);
}
return psf;
}
spin_unlock_bh(&state->im->mca_lock);
state->im = state->im->next;
while (!state->im) {
- if (likely(state->idev != NULL)) {
+ if (likely(state->idev != NULL))
read_unlock_bh(&state->idev->lock);
- in6_dev_put(state->idev);
- }
- state->dev = next_net_device(state->dev);
+
+ state->dev = next_net_device_rcu(state->dev);
if (!state->dev) {
state->idev = NULL;
goto out;
}
- state->idev = in6_dev_get(state->dev);
+ state->idev = __in6_dev_get(state->dev);
if (!state->idev)
continue;
read_lock_bh(&state->idev->lock);
}
static void *igmp6_mcf_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(dev_base_lock)
+ __acquires(RCU)
{
- read_lock(&dev_base_lock);
+ rcu_read_lock();
return *pos ? igmp6_mcf_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
}
}
static void igmp6_mcf_seq_stop(struct seq_file *seq, void *v)
- __releases(dev_base_lock)
+ __releases(RCU)
{
struct igmp6_mcf_iter_state *state = igmp6_mcf_seq_private(seq);
if (likely(state->im != NULL)) {
}
if (likely(state->idev != NULL)) {
read_unlock_bh(&state->idev->lock);
- in6_dev_put(state->idev);
state->idev = NULL;
}
state->dev = NULL;
- read_unlock(&dev_base_lock);
+ rcu_read_unlock();
}
static int igmp6_mcf_seq_show(struct seq_file *seq, void *v)
"Source Address", "INC", "EXC");
} else {
seq_printf(seq,
- "%3d %6.6s " NIP6_SEQFMT " " NIP6_SEQFMT " %6lu %6lu\n",
+ "%3d %6.6s %pi6 %pi6 %6lu %6lu\n",
state->dev->ifindex, state->dev->name,
- NIP6(state->im->mca_addr),
- NIP6(psf->sf_addr),
+ &state->im->mca_addr,
+ &psf->sf_addr,
psf->sf_count[MCAST_INCLUDE],
psf->sf_count[MCAST_EXCLUDE]);
}
.release = seq_release_net,
};
-static int igmp6_proc_init(struct net *net)
+static int __net_init igmp6_proc_init(struct net *net)
{
int err;
goto out;
}
-static void igmp6_proc_exit(struct net *net)
+static void __net_exit igmp6_proc_exit(struct net *net)
{
proc_net_remove(net, "mcfilter6");
proc_net_remove(net, "igmp6");
}
#else
-static int igmp6_proc_init(struct net *net)
+static inline int igmp6_proc_init(struct net *net)
{
return 0;
}
-static void igmp6_proc_exit(struct net *net)
+static inline void igmp6_proc_exit(struct net *net)
{
- ;
}
#endif
-static int igmp6_net_init(struct net *net)
+static int __net_init igmp6_net_init(struct net *net)
{
int err;
goto out;
}
-static void igmp6_net_exit(struct net *net)
+static void __net_exit igmp6_net_exit(struct net *net)
{
inet_ctl_sock_destroy(net->ipv6.igmp_sk);
igmp6_proc_exit(net);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff