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authorTejun Heo <tj@kernel.org>2011-02-21 09:43:56 +0100
committerTejun Heo <tj@kernel.org>2011-02-21 09:43:56 +0100
commit43d133c18b44e7d82d82ef0dcc2bddd55d5dfe81 (patch)
tree8de75c837b55874cc8a81a29bdedbc62668d4481 /net/ipv6/ip6mr.c
parent4149efb22da66e326fc48baf80d628834509f7f0 (diff)
parent6f576d57f1fa0d6026b495d8746d56d949989161 (diff)
downloadop-kernel-dev-43d133c18b44e7d82d82ef0dcc2bddd55d5dfe81.zip
op-kernel-dev-43d133c18b44e7d82d82ef0dcc2bddd55d5dfe81.tar.gz
Merge branch 'master' into for-2.6.39
Diffstat (limited to 'net/ipv6/ip6mr.c')
-rw-r--r--net/ipv6/ip6mr.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 9fab274..0e1d53b 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -34,6 +34,7 @@
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/compat.h>
#include <net/protocol.h>
#include <linux/skbuff.h>
#include <net/sock.h>
@@ -1804,6 +1805,80 @@ int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg)
}
}
+#ifdef CONFIG_COMPAT
+struct compat_sioc_sg_req6 {
+ struct sockaddr_in6 src;
+ struct sockaddr_in6 grp;
+ compat_ulong_t pktcnt;
+ compat_ulong_t bytecnt;
+ compat_ulong_t wrong_if;
+};
+
+struct compat_sioc_mif_req6 {
+ mifi_t mifi;
+ compat_ulong_t icount;
+ compat_ulong_t ocount;
+ compat_ulong_t ibytes;
+ compat_ulong_t obytes;
+};
+
+int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
+{
+ struct compat_sioc_sg_req6 sr;
+ struct compat_sioc_mif_req6 vr;
+ struct mif_device *vif;
+ struct mfc6_cache *c;
+ struct net *net = sock_net(sk);
+ struct mr6_table *mrt;
+
+ mrt = ip6mr_get_table(net, raw6_sk(sk)->ip6mr_table ? : RT6_TABLE_DFLT);
+ if (mrt == NULL)
+ return -ENOENT;
+
+ switch (cmd) {
+ case SIOCGETMIFCNT_IN6:
+ if (copy_from_user(&vr, arg, sizeof(vr)))
+ return -EFAULT;
+ if (vr.mifi >= mrt->maxvif)
+ return -EINVAL;
+ read_lock(&mrt_lock);
+ vif = &mrt->vif6_table[vr.mifi];
+ if (MIF_EXISTS(mrt, vr.mifi)) {
+ 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;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ case SIOCGETSGCNT_IN6:
+ if (copy_from_user(&sr, arg, sizeof(sr)))
+ return -EFAULT;
+
+ read_lock(&mrt_lock);
+ c = ip6mr_cache_find(mrt, &sr.src.sin6_addr, &sr.grp.sin6_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;
+ }
+ read_unlock(&mrt_lock);
+ return -EADDRNOTAVAIL;
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+#endif
static inline int ip6mr_forward2_finish(struct sk_buff *skb)
{
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