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Diffstat (limited to 'net/ipv6/mcast.c')
-rw-r--r--net/ipv6/mcast.c92
1 files changed, 27 insertions, 65 deletions
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index ae9881832a7e..331d728c2035 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -49,6 +49,7 @@
#include <linux/netfilter.h>
#include <linux/netfilter_ipv6.h>
+#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/snmp.h>
@@ -214,7 +215,7 @@ int ipv6_sock_mc_join(struct sock *sk, int ifindex, struct in6_addr *addr)
dst_release(&rt->u.dst);
}
} else
- dev = dev_get_by_index(ifindex);
+ dev = dev_get_by_index(&init_net, ifindex);
if (dev == NULL) {
sock_kfree_s(sk, mc_lst, sizeof(*mc_lst));
@@ -265,7 +266,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
*lnk = mc_lst->next;
write_unlock_bh(&ipv6_sk_mc_lock);
- if ((dev = dev_get_by_index(mc_lst->ifindex)) != NULL) {
+ if ((dev = dev_get_by_index(&init_net, mc_lst->ifindex)) != NULL) {
struct inet6_dev *idev = in6_dev_get(dev);
(void) ip6_mc_leave_src(sk, mc_lst, idev);
@@ -300,7 +301,7 @@ static struct inet6_dev *ip6_mc_find_dev(struct in6_addr *group, int ifindex)
dst_release(&rt->u.dst);
}
} else
- dev = dev_get_by_index(ifindex);
+ dev = dev_get_by_index(&init_net, ifindex);
if (!dev)
return NULL;
@@ -331,7 +332,7 @@ void ipv6_sock_mc_close(struct sock *sk)
np->ipv6_mc_list = mc_lst->next;
write_unlock_bh(&ipv6_sk_mc_lock);
- dev = dev_get_by_index(mc_lst->ifindex);
+ dev = dev_get_by_index(&init_net, mc_lst->ifindex);
if (dev) {
struct inet6_dev *idev = in6_dev_get(dev);
@@ -1406,7 +1407,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
/* we assume size > sizeof(ra) here */
skb = sock_alloc_send_skb(sk, size + LL_RESERVED_SPACE(dev), 1, &err);
- if (skb == 0)
+ if (!skb)
return NULL;
skb_reserve(skb, LL_RESERVED_SPACE(dev));
@@ -1437,17 +1438,12 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
static inline int mld_dev_queue_xmit2(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
+ unsigned char ha[MAX_ADDR_LEN];
- if (dev->hard_header) {
- unsigned char ha[MAX_ADDR_LEN];
- int err;
-
- ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1);
- err = dev->hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len);
- if (err < 0) {
- kfree_skb(skb);
- return err;
- }
+ ndisc_mc_map(&ipv6_hdr(skb)->daddr, ha, dev, 1);
+ if (dev_hard_header(skb, dev, ETH_P_IPV6, ha, NULL, skb->len) < 0) {
+ kfree_skb(skb);
+ return -EINVAL;
}
return dev_queue_xmit(skb);
}
@@ -1478,10 +1474,11 @@ static void mld_sendpack(struct sk_buff *skb)
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
mld_dev_queue_xmit);
if (!err) {
- ICMP6_INC_STATS(idev,ICMP6_MIB_OUTMSGS);
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
+ ICMP6MSGOUT_INC_STATS_BH(idev, ICMPV6_MLD2_REPORT);
+ ICMP6_INC_STATS_BH(idev, ICMP6_MIB_OUTMSGS);
+ IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTMCASTPKTS);
} else
- IP6_INC_STATS(idev, IPSTATS_MIB_OUTDISCARDS);
+ IP6_INC_STATS_BH(idev, IPSTATS_MIB_OUTDISCARDS);
if (likely(idev != NULL))
in6_dev_put(idev);
@@ -1821,10 +1818,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL, skb->dev,
mld_dev_queue_xmit);
if (!err) {
- if (type == ICMPV6_MGM_REDUCTION)
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBREDUCTIONS);
- else
- ICMP6_INC_STATS(idev, ICMP6_MIB_OUTGROUPMEMBRESPONSES);
+ ICMP6MSGOUT_INC_STATS(idev, type);
ICMP6_INC_STATS(idev, ICMP6_MIB_OUTMSGS);
IP6_INC_STATS(idev, IPSTATS_MIB_OUTMCASTPKTS);
} else
@@ -2150,7 +2144,7 @@ static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
/* callers have the socket lock and a write lock on ipv6_sk_mc_lock,
* so no other readers or writers of iml or its sflist
*/
- if (iml->sflist == 0) {
+ if (!iml->sflist) {
/* any-source empty exclude case */
return ip6_mc_del_src(idev, &iml->addr, iml->sfmode, 0, NULL, 0);
}
@@ -2332,7 +2326,7 @@ static inline struct ifmcaddr6 *igmp6_mc_get_first(struct seq_file *seq)
struct igmp6_mc_iter_state *state = igmp6_mc_seq_private(seq);
state->idev = NULL;
- for_each_netdev(state->dev) {
+ for_each_netdev(&init_net, state->dev) {
struct inet6_dev *idev;
idev = in6_dev_get(state->dev);
if (!idev)
@@ -2432,24 +2426,8 @@ static const struct seq_operations igmp6_mc_seq_ops = {
static int igmp6_mc_seq_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
- int rc = -ENOMEM;
- struct igmp6_mc_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
-
- if (!s)
- goto out;
-
- rc = seq_open(file, &igmp6_mc_seq_ops);
- if (rc)
- goto out_kfree;
-
- seq = file->private_data;
- seq->private = s;
-out:
- return rc;
-out_kfree:
- kfree(s);
- goto out;
+ return seq_open_private(file, &igmp6_mc_seq_ops,
+ sizeof(struct igmp6_mc_iter_state));
}
static const struct file_operations igmp6_mc_seq_fops = {
@@ -2476,7 +2454,7 @@ static inline struct ip6_sf_list *igmp6_mcf_get_first(struct seq_file *seq)
state->idev = NULL;
state->im = NULL;
- for_each_netdev(state->dev) {
+ for_each_netdev(&init_net, state->dev) {
struct inet6_dev *idev;
idev = in6_dev_get(state->dev);
if (unlikely(idev == NULL))
@@ -2606,24 +2584,8 @@ static const struct seq_operations igmp6_mcf_seq_ops = {
static int igmp6_mcf_seq_open(struct inode *inode, struct file *file)
{
- struct seq_file *seq;
- int rc = -ENOMEM;
- struct igmp6_mcf_iter_state *s = kzalloc(sizeof(*s), GFP_KERNEL);
-
- if (!s)
- goto out;
-
- rc = seq_open(file, &igmp6_mcf_seq_ops);
- if (rc)
- goto out_kfree;
-
- seq = file->private_data;
- seq->private = s;
-out:
- return rc;
-out_kfree:
- kfree(s);
- goto out;
+ return seq_open_private(file, &igmp6_mcf_seq_ops,
+ sizeof(struct igmp6_mcf_iter_state));
}
static const struct file_operations igmp6_mcf_seq_fops = {
@@ -2658,8 +2620,8 @@ int __init igmp6_init(struct net_proto_family *ops)
np->hop_limit = 1;
#ifdef CONFIG_PROC_FS
- proc_net_fops_create("igmp6", S_IRUGO, &igmp6_mc_seq_fops);
- proc_net_fops_create("mcfilter6", S_IRUGO, &igmp6_mcf_seq_fops);
+ proc_net_fops_create(&init_net, "igmp6", S_IRUGO, &igmp6_mc_seq_fops);
+ proc_net_fops_create(&init_net, "mcfilter6", S_IRUGO, &igmp6_mcf_seq_fops);
#endif
return 0;
@@ -2671,7 +2633,7 @@ void igmp6_cleanup(void)
igmp6_socket = NULL; /* for safety */
#ifdef CONFIG_PROC_FS
- proc_net_remove("mcfilter6");
- proc_net_remove("igmp6");
+ proc_net_remove(&init_net, "mcfilter6");
+ proc_net_remove(&init_net, "igmp6");
#endif
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.