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-rw-r--r--net/ipv6/addrconf.c18
-rw-r--r--net/ipv6/af_inet6.c2
-rw-r--r--net/ipv6/anycast.c16
-rw-r--r--net/ipv6/esp6.c5
-rw-r--r--net/ipv6/icmp.c8
-rw-r--r--net/ipv6/ip6_fib.c20
-rw-r--r--net/ipv6/ip6_input.c6
-rw-r--r--net/ipv6/ip6_output.c16
-rw-r--r--net/ipv6/ip6_tunnel.c46
-rw-r--r--net/ipv6/ip6mr.c4
-rw-r--r--net/ipv6/ipcomp6.c5
-rw-r--r--net/ipv6/mcast.c36
-rw-r--r--net/ipv6/mip6.c8
-rw-r--r--net/ipv6/ndisc.c51
-rw-r--r--net/ipv6/netfilter.c10
-rw-r--r--net/ipv6/netfilter/ip6_tables.c21
-rw-r--r--net/ipv6/netfilter/ip6table_mangle.c3
-rw-r--r--net/ipv6/raw.c14
-rw-r--r--net/ipv6/reassembly.c4
-rw-r--r--net/ipv6/route.c157
-rw-r--r--net/ipv6/sit.c40
-rw-r--r--net/ipv6/syncookies.c13
-rw-r--r--net/ipv6/tcp_ipv6.c50
-rw-r--r--net/ipv6/udp.c22
-rw-r--r--net/ipv6/xfrm6_mode_beet.c2
-rw-r--r--net/ipv6/xfrm6_mode_tunnel.c6
-rw-r--r--net/ipv6/xfrm6_policy.c2
-rw-r--r--net/ipv6/xfrm6_tunnel.c10
28 files changed, 345 insertions, 250 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a7bda0757053..f2f9b2e3cfe9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -825,6 +825,8 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
dst_release(&rt->dst);
}
+ /* clean up prefsrc entries */
+ rt6_remove_prefsrc(ifp);
out:
in6_ifa_put(ifp);
}
@@ -1281,7 +1283,7 @@ static int ipv6_count_addresses(struct inet6_dev *idev)
return cnt;
}
-int ipv6_chk_addr(struct net *net, struct in6_addr *addr,
+int ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
struct net_device *dev, int strict)
{
struct inet6_ifaddr *ifp;
@@ -1324,7 +1326,7 @@ static bool ipv6_chk_same_addr(struct net *net, const struct in6_addr *addr,
return false;
}
-int ipv6_chk_prefix(struct in6_addr *addr, struct net_device *dev)
+int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev)
{
struct inet6_dev *idev;
struct inet6_ifaddr *ifa;
@@ -1455,7 +1457,7 @@ void addrconf_dad_failure(struct inet6_ifaddr *ifp)
/* Join to solicited addr multicast group. */
-void addrconf_join_solict(struct net_device *dev, struct in6_addr *addr)
+void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr)
{
struct in6_addr maddr;
@@ -1466,7 +1468,7 @@ void addrconf_join_solict(struct net_device *dev, struct in6_addr *addr)
ipv6_dev_mc_inc(dev, &maddr);
}
-void addrconf_leave_solict(struct inet6_dev *idev, struct in6_addr *addr)
+void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr)
{
struct in6_addr maddr;
@@ -2111,7 +2113,7 @@ err_exit:
/*
* Manual configuration of address on an interface
*/
-static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
+static int inet6_addr_add(struct net *net, int ifindex, const struct in6_addr *pfx,
unsigned int plen, __u8 ifa_flags, __u32 prefered_lft,
__u32 valid_lft)
{
@@ -2185,7 +2187,7 @@ static int inet6_addr_add(struct net *net, int ifindex, struct in6_addr *pfx,
return PTR_ERR(ifp);
}
-static int inet6_addr_del(struct net *net, int ifindex, struct in6_addr *pfx,
+static int inet6_addr_del(struct net *net, int ifindex, const struct in6_addr *pfx,
unsigned int plen)
{
struct inet6_ifaddr *ifp;
@@ -2348,7 +2350,7 @@ static void init_loopback(struct net_device *dev)
add_addr(idev, &in6addr_loopback, 128, IFA_HOST);
}
-static void addrconf_add_linklocal(struct inet6_dev *idev, struct in6_addr *addr)
+static void addrconf_add_linklocal(struct inet6_dev *idev, const struct in6_addr *addr)
{
struct inet6_ifaddr * ifp;
u32 addr_flags = IFA_F_PERMANENT;
@@ -3119,7 +3121,7 @@ void if6_proc_exit(void)
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
/* Check if address is a home address configured on any interface. */
-int ipv6_chk_home_addr(struct net *net, struct in6_addr *addr)
+int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr)
{
int ret = 0;
struct inet6_ifaddr *ifp = NULL;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index afcc7099f96d..b7919f901fbf 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -740,7 +740,7 @@ static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
static int ipv6_gso_send_check(struct sk_buff *skb)
{
- struct ipv6hdr *ipv6h;
+ const struct ipv6hdr *ipv6h;
const struct inet6_protocol *ops;
int err = -EINVAL;
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 0e5e943446f0..674255f5e6b7 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -44,7 +44,7 @@
#include <net/checksum.h>
-static int ipv6_dev_ac_dec(struct net_device *dev, struct in6_addr *addr);
+static int ipv6_dev_ac_dec(struct net_device *dev, const struct in6_addr *addr);
/* Big ac list lock for all the sockets */
static DEFINE_RWLOCK(ipv6_sk_ac_lock);
@@ -54,7 +54,7 @@ static DEFINE_RWLOCK(ipv6_sk_ac_lock);
* socket join an anycast group
*/
-int ipv6_sock_ac_join(struct sock *sk, int ifindex, struct in6_addr *addr)
+int ipv6_sock_ac_join(struct sock *sk, int ifindex, const struct in6_addr *addr)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct net_device *dev = NULL;
@@ -145,7 +145,7 @@ error:
/*
* socket leave an anycast group
*/
-int ipv6_sock_ac_drop(struct sock *sk, int ifindex, struct in6_addr *addr)
+int ipv6_sock_ac_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct net_device *dev;
@@ -252,7 +252,7 @@ static void aca_put(struct ifacaddr6 *ac)
/*
* device anycast group inc (add if not found)
*/
-int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr)
+int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr)
{
struct ifacaddr6 *aca;
struct inet6_dev *idev;
@@ -324,7 +324,7 @@ out:
/*
* device anycast group decrement
*/
-int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr)
+int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr)
{
struct ifacaddr6 *aca, *prev_aca;
@@ -358,7 +358,7 @@ int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr)
}
/* called with rcu_read_lock() */
-static int ipv6_dev_ac_dec(struct net_device *dev, struct in6_addr *addr)
+static int ipv6_dev_ac_dec(struct net_device *dev, const struct in6_addr *addr)
{
struct inet6_dev *idev = __in6_dev_get(dev);
@@ -371,7 +371,7 @@ static int ipv6_dev_ac_dec(struct net_device *dev, struct in6_addr *addr)
* check if the interface has this anycast address
* called with rcu_read_lock()
*/
-static int ipv6_chk_acast_dev(struct net_device *dev, struct in6_addr *addr)
+static int ipv6_chk_acast_dev(struct net_device *dev, const struct in6_addr *addr)
{
struct inet6_dev *idev;
struct ifacaddr6 *aca;
@@ -392,7 +392,7 @@ static int ipv6_chk_acast_dev(struct net_device *dev, struct in6_addr *addr)
* check if given interface (or any, if dev==0) has this anycast address
*/
int ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
- struct in6_addr *addr)
+ const struct in6_addr *addr)
{
int found = 0;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 59dccfbb5b11..1ac7938dd9ec 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -430,7 +430,7 @@ static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
u8 type, u8 code, int offset, __be32 info)
{
struct net *net = dev_net(skb->dev);
- struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
+ const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data;
struct ip_esp_hdr *esph = (struct ip_esp_hdr *)(skb->data + offset);
struct xfrm_state *x;
@@ -438,7 +438,8 @@ static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
type != ICMPV6_PKT_TOOBIG)
return;
- x = xfrm_state_lookup(net, skb->mark, (xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET6);
+ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
+ esph->spi, IPPROTO_ESP, AF_INET6);
if (!x)
return;
printk(KERN_DEBUG "pmtu discovery on SA ESP/%08x/%pI6\n",
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 83cb4f9add81..11900417b1cc 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -372,7 +372,7 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
struct ipv6hdr *hdr = ipv6_hdr(skb);
struct sock *sk;
struct ipv6_pinfo *np;
- struct in6_addr *saddr = NULL;
+ const struct in6_addr *saddr = NULL;
struct dst_entry *dst;
struct icmp6hdr tmp_hdr;
struct flowi6 fl6;
@@ -521,7 +521,7 @@ static void icmpv6_echo_reply(struct sk_buff *skb)
struct sock *sk;
struct inet6_dev *idev;
struct ipv6_pinfo *np;
- struct in6_addr *saddr = NULL;
+ const struct in6_addr *saddr = NULL;
struct icmp6hdr *icmph = icmp6_hdr(skb);
struct icmp6hdr tmp_hdr;
struct flowi6 fl6;
@@ -645,8 +645,8 @@ static int icmpv6_rcv(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct inet6_dev *idev = __in6_dev_get(dev);
- struct in6_addr *saddr, *daddr;
- struct ipv6hdr *orig_hdr;
+ const struct in6_addr *saddr, *daddr;
+ const struct ipv6hdr *orig_hdr;
struct icmp6hdr *hdr;
u8 type;
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 7548905e79e1..4076a0b14b20 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -134,9 +134,9 @@ static __inline__ u32 fib6_new_sernum(void)
# define BITOP_BE32_SWIZZLE 0
#endif
-static __inline__ __be32 addr_bit_set(void *token, int fn_bit)
+static __inline__ __be32 addr_bit_set(const void *token, int fn_bit)
{
- __be32 *addr = token;
+ const __be32 *addr = token;
/*
* Here,
* 1 << ((~fn_bit ^ BITOP_BE32_SWIZZLE) & 0x1f)
@@ -394,10 +394,11 @@ static int inet6_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
arg.net = net;
w->args = &arg;
+ rcu_read_lock();
for (h = s_h; h < FIB6_TABLE_HASHSZ; h++, s_e = 0) {
e = 0;
head = &net->ipv6.fib_table_hash[h];
- hlist_for_each_entry(tb, node, head, tb6_hlist) {
+ hlist_for_each_entry_rcu(tb, node, head, tb6_hlist) {
if (e < s_e)
goto next;
res = fib6_dump_table(tb, skb, cb);
@@ -408,6 +409,7 @@ next:
}
}
out:
+ rcu_read_unlock();
cb->args[1] = e;
cb->args[0] = h;
@@ -822,7 +824,7 @@ st_failure:
struct lookup_args {
int offset; /* key offset on rt6_info */
- struct in6_addr *addr; /* search key */
+ const struct in6_addr *addr; /* search key */
};
static struct fib6_node * fib6_lookup_1(struct fib6_node *root,
@@ -881,8 +883,8 @@ static struct fib6_node * fib6_lookup_1(struct fib6_node *root,
return NULL;
}
-struct fib6_node * fib6_lookup(struct fib6_node *root, struct in6_addr *daddr,
- struct in6_addr *saddr)
+struct fib6_node * fib6_lookup(struct fib6_node *root, const struct in6_addr *daddr,
+ const struct in6_addr *saddr)
{
struct fib6_node *fn;
struct lookup_args args[] = {
@@ -916,7 +918,7 @@ struct fib6_node * fib6_lookup(struct fib6_node *root, struct in6_addr *daddr,
static struct fib6_node * fib6_locate_1(struct fib6_node *root,
- struct in6_addr *addr,
+ const struct in6_addr *addr,
int plen, int offset)
{
struct fib6_node *fn;
@@ -946,8 +948,8 @@ static struct fib6_node * fib6_locate_1(struct fib6_node *root,
}
struct fib6_node * fib6_locate(struct fib6_node *root,
- struct in6_addr *daddr, int dst_len,
- struct in6_addr *saddr, int src_len)
+ const struct in6_addr *daddr, int dst_len,
+ const struct in6_addr *saddr, int src_len)
{
struct fib6_node *fn;
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index a83e9209cecc..027c7ff6f1e5 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -57,7 +57,7 @@ inline int ip6_rcv_finish( struct sk_buff *skb)
int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev)
{
- struct ipv6hdr *hdr;
+ const struct ipv6hdr *hdr;
u32 pkt_len;
struct inet6_dev *idev;
struct net *net = dev_net(skb->dev);
@@ -186,7 +186,7 @@ resubmit:
int ret;
if (ipprot->flags & INET6_PROTO_FINAL) {
- struct ipv6hdr *hdr;
+ const struct ipv6hdr *hdr;
/* Free reference early: we don't need it any more,
and it may hold ip_conntrack module loaded
@@ -242,7 +242,7 @@ int ip6_input(struct sk_buff *skb)
int ip6_mc_input(struct sk_buff *skb)
{
- struct ipv6hdr *hdr;
+ const struct ipv6hdr *hdr;
int deliver;
IP6_UPD_PO_STATS_BH(dev_net(skb_dst(skb)->dev),
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 46cf7bea6769..4cfbb24b9e04 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -869,9 +869,9 @@ fail:
return err;
}
-static inline int ip6_rt_check(struct rt6key *rt_key,
- struct in6_addr *fl_addr,
- struct in6_addr *addr_cache)
+static inline int ip6_rt_check(const struct rt6key *rt_key,
+ const struct in6_addr *fl_addr,
+ const struct in6_addr *addr_cache)
{
return (rt_key->plen != 128 || !ipv6_addr_equal(fl_addr, &rt_key->addr)) &&
(addr_cache == NULL || !ipv6_addr_equal(fl_addr, addr_cache));
@@ -879,7 +879,7 @@ static inline int ip6_rt_check(struct rt6key *rt_key,
static struct dst_entry *ip6_sk_dst_check(struct sock *sk,
struct dst_entry *dst,
- struct flowi6 *fl6)
+ const struct flowi6 *fl6)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct rt6_info *rt = (struct rt6_info *)dst;
@@ -930,10 +930,10 @@ static int ip6_dst_lookup_tail(struct sock *sk,
goto out_err_release;
if (ipv6_addr_any(&fl6->saddr)) {
- err = ipv6_dev_get_saddr(net, ip6_dst_idev(*dst)->dev,
- &fl6->daddr,
- sk ? inet6_sk(sk)->srcprefs : 0,
- &fl6->saddr);
+ struct rt6_info *rt = (struct rt6_info *) *dst;
+ err = ip6_route_get_saddr(net, rt, &fl6->daddr,
+ sk ? inet6_sk(sk)->srcprefs : 0,
+ &fl6->saddr);
if (err)
goto out_err_release;
}
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index c1b1bd312df2..36c2842a86b2 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -162,7 +162,7 @@ static inline void ip6_tnl_dst_store(struct ip6_tnl *t, struct dst_entry *dst)
for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
static struct ip6_tnl *
-ip6_tnl_lookup(struct net *net, struct in6_addr *remote, struct in6_addr *local)
+ip6_tnl_lookup(struct net *net, const struct in6_addr *remote, const struct in6_addr *local)
{
unsigned int h0 = HASH(remote);
unsigned int h1 = HASH(local);
@@ -194,10 +194,10 @@ ip6_tnl_lookup(struct net *net, struct in6_addr *remote, struct in6_addr *local)
**/
static struct ip6_tnl __rcu **
-ip6_tnl_bucket(struct ip6_tnl_net *ip6n, struct ip6_tnl_parm *p)
+ip6_tnl_bucket(struct ip6_tnl_net *ip6n, const struct ip6_tnl_parm *p)
{
- struct in6_addr *remote = &p->raddr;
- struct in6_addr *local = &p->laddr;
+ const struct in6_addr *remote = &p->raddr;
+ const struct in6_addr *local = &p->laddr;
unsigned h = 0;
int prio = 0;
@@ -280,11 +280,6 @@ static struct ip6_tnl *ip6_tnl_create(struct net *net, struct ip6_tnl_parm *p)
dev_net_set(dev, net);
- if (strchr(name, '%')) {
- if (dev_alloc_name(dev, name) < 0)
- goto failed_free;
- }
-
t = netdev_priv(dev);
t->parms = *p;
err = ip6_tnl_dev_init(dev);
@@ -321,8 +316,8 @@ failed:
static struct ip6_tnl *ip6_tnl_locate(struct net *net,
struct ip6_tnl_parm *p, int create)
{
- struct in6_addr *remote = &p->raddr;
- struct in6_addr *local = &p->laddr;
+ const struct in6_addr *remote = &p->raddr;
+ const struct in6_addr *local = &p->laddr;
struct ip6_tnl __rcu **tp;
struct ip6_tnl *t;
struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
@@ -374,7 +369,7 @@ ip6_tnl_dev_uninit(struct net_device *dev)
static __u16
parse_tlv_tnl_enc_lim(struct sk_buff *skb, __u8 * raw)
{
- struct ipv6hdr *ipv6h = (struct ipv6hdr *) raw;
+ const struct ipv6hdr *ipv6h = (const struct ipv6hdr *) raw;
__u8 nexthdr = ipv6h->nexthdr;
__u16 off = sizeof (*ipv6h);
@@ -435,7 +430,7 @@ static int
ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
u8 *type, u8 *code, int *msg, __u32 *info, int offset)
{
- struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
+ const struct ipv6hdr *ipv6h = (const struct ipv6hdr *) skb->data;
struct ip6_tnl *t;
int rel_msg = 0;
u8 rel_type = ICMPV6_DEST_UNREACH;
@@ -535,8 +530,9 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
__u32 rel_info = ntohl(info);
int err;
struct sk_buff *skb2;
- struct iphdr *eiph;
+ const struct iphdr *eiph;
struct rtable *rt;
+ struct flowi4 fl4;
err = ip6_tnl_err(skb, IPPROTO_IPIP, opt, &rel_type, &rel_code,
&rel_msg, &rel_info, offset);
@@ -577,7 +573,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
eiph = ip_hdr(skb2);
/* Try to guess incoming interface */
- rt = ip_route_output_ports(dev_net(skb->dev), NULL,
+ rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL,
eiph->saddr, 0,
0, 0,
IPPROTO_IPIP, RT_TOS(eiph->tos), 0);
@@ -590,7 +586,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
if (rt->rt_flags & RTCF_LOCAL) {
ip_rt_put(rt);
rt = NULL;
- rt = ip_route_output_ports(dev_net(skb->dev), NULL,
+ rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL,
eiph->daddr, eiph->saddr,
0, 0,
IPPROTO_IPIP,
@@ -669,8 +665,8 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
return 0;
}
-static void ip4ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
- struct ipv6hdr *ipv6h,
+static void ip4ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
+ const struct ipv6hdr *ipv6h,
struct sk_buff *skb)
{
__u8 dsfield = ipv6_get_dsfield(ipv6h) & ~INET_ECN_MASK;
@@ -682,8 +678,8 @@ static void ip4ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
IP_ECN_set_ce(ip_hdr(skb));
}
-static void ip6ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
- struct ipv6hdr *ipv6h,
+static void ip6ip6_dscp_ecn_decapsulate(const struct ip6_tnl *t,
+ const struct ipv6hdr *ipv6h,
struct sk_buff *skb)
{
if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
@@ -726,12 +722,12 @@ static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
static int ip6_tnl_rcv(struct sk_buff *skb, __u16 protocol,
__u8 ipproto,
- void (*dscp_ecn_decapsulate)(struct ip6_tnl *t,
- struct ipv6hdr *ipv6h,
+ void (*dscp_ecn_decapsulate)(const struct ip6_tnl *t,
+ const struct ipv6hdr *ipv6h,
struct sk_buff *skb))
{
struct ip6_tnl *t;
- struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+ const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
rcu_read_lock();
@@ -828,7 +824,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit)
**/
static inline int
-ip6_tnl_addr_conflict(struct ip6_tnl *t, struct ipv6hdr *hdr)
+ip6_tnl_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)
{
return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);
}
@@ -1005,7 +1001,7 @@ static inline int
ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct iphdr *iph = ip_hdr(skb);
+ const struct iphdr *iph = ip_hdr(skb);
int encap_limit = -1;
struct flowi6 fl6;
__u8 dsfield;
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 29e48593bf22..82a809901f8e 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -989,8 +989,8 @@ static int mif6_add(struct net *net, struct mr6_table *mrt,
}
static struct mfc6_cache *ip6mr_cache_find(struct mr6_table *mrt,
- struct in6_addr *origin,
- struct in6_addr *mcastgrp)
+ const struct in6_addr *origin,
+ const struct in6_addr *mcastgrp)
{
int line = MFC6_HASH(mcastgrp, origin);
struct mfc6_cache *c;
diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index 85cccd6ed0b7..bba658d9a03c 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -55,7 +55,7 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
{
struct net *net = dev_net(skb->dev);
__be32 spi;
- struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
+ const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data;
struct ip_comp_hdr *ipcomph =
(struct ip_comp_hdr *)(skb->data + offset);
struct xfrm_state *x;
@@ -64,7 +64,8 @@ static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
return;
spi = htonl(ntohs(ipcomph->cpi));
- x = xfrm_state_lookup(net, skb->mark, (xfrm_address_t *)&iph->daddr, spi, IPPROTO_COMP, AF_INET6);
+ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
+ spi, IPPROTO_COMP, AF_INET6);
if (!x)
return;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 76b893771e6e..ff62e33ead07 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -92,16 +92,16 @@ static void mld_gq_timer_expire(unsigned long data);
static void mld_ifc_timer_expire(unsigned long data);
static void mld_ifc_event(struct inet6_dev *idev);
static void mld_add_delrec(struct inet6_dev *idev, struct ifmcaddr6 *pmc);
-static void mld_del_delrec(struct inet6_dev *idev, struct in6_addr *addr);
+static void mld_del_delrec(struct inet6_dev *idev, const struct in6_addr *addr);
static void mld_clear_delrec(struct inet6_dev *idev);
static int sf_setstate(struct ifmcaddr6 *pmc);
static void sf_markstate(struct ifmcaddr6 *pmc);
static void ip6_mc_clear_src(struct ifmcaddr6 *pmc);
-static int ip6_mc_del_src(struct inet6_dev *idev, struct in6_addr *pmca,
- int sfmode, int sfcount, struct in6_addr *psfsrc,
+static int ip6_mc_del_src(struct inet6_dev *idev, const struct in6_addr *pmca,
+ int sfmode, int sfcount, const struct in6_addr *psfsrc,
int delta);
-static int ip6_mc_add_src(struct inet6_dev *idev, struct in6_addr *pmca,
- int sfmode, int sfcount, struct in6_addr *psfsrc,
+static int ip6_mc_add_src(struct inet6_dev *idev, const struct in6_addr *pmca,
+ int sfmode, int sfcount, const struct in6_addr *psfsrc,
int delta);
static int ip6_mc_leave_src(struct sock *sk, struct ipv6_mc_socklist *iml,
struct inet6_dev *idev);
@@ -250,7 +250,7 @@ int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr)
/* called with rcu_read_lock() */
static struct inet6_dev *ip6_mc_find_dev_rcu(struct net *net,
- struct in6_addr *group,
+ const struct in6_addr *group,
int ifindex)
{
struct net_device *dev = NULL;
@@ -451,7 +451,7 @@ done:
int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf)
{
- struct in6_addr *group;
+ const struct in6_addr *group;
struct ipv6_mc_socklist *pmc;
struct inet6_dev *idev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
@@ -542,7 +542,7 @@ int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
struct group_filter __user *optval, int __user *optlen)
{
int err, i, count, copycount;
- struct in6_addr *group;
+ const struct in6_addr *group;
struct ipv6_mc_socklist *pmc;
struct inet6_dev *idev;
struct ipv6_pinfo *inet6 = inet6_sk(sk);
@@ -752,7 +752,7 @@ static void mld_add_delrec(struct inet6_dev *idev, struct ifmcaddr6 *im)
spin_unlock_bh(&idev->mc_lock);
}
-static void mld_del_delrec(struct inet6_dev *idev, struct in6_addr *pmca)
+static void mld_del_delrec(struct inet6_dev *idev, const struct in6_addr *pmca)
{
struct ifmcaddr6 *pmc, *pmc_prev;
struct ip6_sf_list *psf, *psf_next;
@@ -1052,7 +1052,7 @@ static void igmp6_group_queried(struct ifmcaddr6 *ma, unsigned long resptime)
/* mark EXCLUDE-mode sources */
static int mld_xmarksources(struct ifmcaddr6 *pmc, int nsrcs,
- struct in6_addr *srcs)
+ const struct in6_addr *srcs)
{
struct ip6_sf_list *psf;
int i, scount;
@@ -1080,7 +1080,7 @@ static int mld_xmarksources(struct ifmcaddr6 *pmc, int nsrcs,
}
static int mld_marksources(struct ifmcaddr6 *pmc, int nsrcs,
- struct in6_addr *srcs)
+ const struct in6_addr *srcs)
{
struct ip6_sf_list *psf;
int i, scount;
@@ -1115,7 +1115,7 @@ int igmp6_event_query(struct sk_buff *skb)
{
struct mld2_query *mlh2 = NULL;
struct ifmcaddr6 *ma;
- struct in6_addr *group;
+ const struct in6_addr *group;
unsigned long max_delay;
struct inet6_dev *idev;
struct mld_msg *mld;
@@ -1821,7 +1821,7 @@ err_out:
}
static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
- struct in6_addr *psfsrc)
+ const struct in6_addr *psfsrc)
{
struct ip6_sf_list *psf, *psf_prev;
int rv = 0;
@@ -1857,8 +1857,8 @@ static int ip6_mc_del1_src(struct ifmcaddr6 *pmc, int sfmode,
return rv;
}
-static int ip6_mc_del_src(struct inet6_dev *idev, struct in6_addr *pmca,
- int sfmode, int sfcount, struct in6_addr *psfsrc,
+static int ip6_mc_del_src(struct inet6_dev *idev, const struct in6_addr *pmca,
+ int sfmode, int sfcount, const struct in6_addr *psfsrc,
int delta)
{
struct ifmcaddr6 *pmc;
@@ -1918,7 +1918,7 @@ static int ip6_mc_del_src(struct inet6_dev *idev, struct in6_addr *pmca,
* Add multicast single-source filter to the interface list
*/
static int ip6_mc_add1_src(struct ifmcaddr6 *pmc, int sfmode,
- struct in6_addr *psfsrc, int delta)
+ const struct in6_addr *psfsrc, int delta)
{
struct ip6_sf_list *psf, *psf_prev;
@@ -2021,8 +2021,8 @@ static int sf_setstate(struct ifmcaddr6 *pmc)
/*
* Add multicast source filter list to the interface list
*/
-static int ip6_mc_add_src(struct inet6_dev *idev, struct in6_addr *pmca,
- int sfmode, int sfcount, struct in6_addr *psfsrc,
+static int ip6_mc_add_src(struct inet6_dev *idev, const struct in6_addr *pmca,
+ int sfmode, int sfcount, const struct in6_addr *psfsrc,
int delta)
{
struct ifmcaddr6 *pmc;
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 9b210482fb05..43242e6e6103 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -126,7 +126,7 @@ static struct mip6_report_rate_limiter mip6_report_rl = {
static int mip6_destopt_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct ipv6_destopt_hdr *destopt = (struct ipv6_destopt_hdr *)skb->data;
int err = destopt->nexthdr;
@@ -181,8 +181,8 @@ static int mip6_destopt_output(struct xfrm_state *x, struct sk_buff *skb)
}
static inline int mip6_report_rl_allow(struct timeval *stamp,
- struct in6_addr *dst,
- struct in6_addr *src, int iif)
+ const struct in6_addr *dst,
+ const struct in6_addr *src, int iif)
{
int allow = 0;
@@ -349,7 +349,7 @@ static const struct xfrm_type mip6_destopt_type =
static int mip6_rthdr_input(struct xfrm_state *x, struct sk_buff *skb)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct rt2_hdr *rt2 = (struct rt2_hdr *)skb->data;
int err = rt2->rt_hdr.nexthdr;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 92f952d093db..7596f071d308 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -324,7 +324,7 @@ static inline u8 *ndisc_opt_addr_data(struct nd_opt_hdr *p,
return lladdr + prepad;
}
-int ndisc_mc_map(struct in6_addr *addr, char *buf, struct net_device *dev, int dir)
+int ndisc_mc_map(const struct in6_addr *addr, char *buf, struct net_device *dev, int dir)
{
switch (dev->type) {
case ARPHRD_ETHER:
@@ -611,6 +611,29 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
inc_opt ? ND_OPT_TARGET_LL_ADDR : 0);
}
+static void ndisc_send_unsol_na(struct net_device *dev)
+{
+ struct inet6_dev *idev;
+ struct inet6_ifaddr *ifa;
+ struct in6_addr mcaddr;
+
+ idev = in6_dev_get(dev);
+ if (!idev)
+ return;
+
+ read_lock_bh(&idev->lock);
+ list_for_each_entry(ifa, &idev->addr_list, if_list) {
+ addrconf_addr_solict_mult(&ifa->addr, &mcaddr);
+ ndisc_send_na(dev, NULL, &mcaddr, &ifa->addr,
+ /*router=*/ !!idev->cnf.forwarding,
+ /*solicited=*/ false, /*override=*/ true,
+ /*inc_opt=*/ true);
+ }
+ read_unlock_bh(&idev->lock);
+
+ in6_dev_put(idev);
+}
+
void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
const struct in6_addr *solicit,
const struct in6_addr *daddr, const struct in6_addr *saddr)
@@ -725,8 +748,8 @@ static int pndisc_is_router(const void *pkey,
static void ndisc_recv_ns(struct sk_buff *skb)
{
struct nd_msg *msg = (struct nd_msg *)skb_transport_header(skb);
- struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
- struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
+ const struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ const struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
u32 ndoptlen = skb->tail - (skb->transport_header +
offsetof(struct nd_msg, opt));
@@ -901,8 +924,8 @@ out:
static void ndisc_recv_na(struct sk_buff *skb)
{
struct nd_msg *msg = (struct nd_msg *)skb_transport_header(skb);
- struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
- struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
+ const struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ const struct in6_addr *daddr = &ipv6_hdr(skb)->daddr;
u8 *lladdr = NULL;
u32 ndoptlen = skb->tail - (skb->transport_header +
offsetof(struct nd_msg, opt));
@@ -945,9 +968,10 @@ static void ndisc_recv_na(struct sk_buff *skb)
}
ifp = ipv6_get_ifaddr(dev_net(dev), &msg->target, dev, 1);
if (ifp) {
- if (ifp->flags & IFA_F_TENTATIVE) {
- addrconf_dad_failure(ifp);
- return;
+ if (skb->pkt_type != PACKET_LOOPBACK
+ && (ifp->flags & IFA_F_TENTATIVE)) {
+ addrconf_dad_failure(ifp);
+ return;
}
/* What should we make now? The advertisement
is invalid, but ndisc specs say nothing
@@ -1014,7 +1038,7 @@ static void ndisc_recv_rs(struct sk_buff *skb)
unsigned long ndoptlen = skb->len - sizeof(*rs_msg);
struct neighbour *neigh;
struct inet6_dev *idev;
- struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
+ const struct in6_addr *saddr = &ipv6_hdr(skb)->saddr;
struct ndisc_options ndopts;
u8 *lladdr = NULL;
@@ -1411,8 +1435,8 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
{
struct inet6_dev *in6_dev;
struct icmp6hdr *icmph;
- struct in6_addr *dest;
- struct in6_addr *target; /* new first hop to destination */
+ const struct in6_addr *dest;
+ const struct in6_addr *target; /* new first hop to destination */
struct neighbour *neigh;
int on_link = 0;
struct ndisc_options ndopts;
@@ -1445,7 +1469,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
}
icmph = icmp6_hdr(skb);
- target = (struct in6_addr *) (icmph + 1);
+ target = (const struct in6_addr *) (icmph + 1);
dest = target + 1;
if (ipv6_addr_is_multicast(dest)) {
@@ -1722,6 +1746,9 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event,
neigh_ifdown(&nd_tbl, dev);
fib6_run_gc(~0UL, net);
break;
+ case NETDEV_NOTIFY_PEERS:
+ ndisc_send_unsol_na(dev);
+ break;
default:
break;
}
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
index 28bc1f644b7b..30fcee465448 100644
--- a/net/ipv6/netfilter.c
+++ b/net/ipv6/netfilter.c
@@ -13,7 +13,7 @@
int ip6_route_me_harder(struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct dst_entry *dst;
struct flowi6 fl6 = {
.flowi6_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
@@ -67,7 +67,7 @@ static void nf_ip6_saveroute(const struct sk_buff *skb,
struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
if (entry->hook == NF_INET_LOCAL_OUT) {
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
rt_info->daddr = iph->daddr;
rt_info->saddr = iph->saddr;
@@ -81,7 +81,7 @@ static int nf_ip6_reroute(struct sk_buff *skb,
struct ip6_rt_info *rt_info = nf_queue_entry_reroute(entry);
if (entry->hook == NF_INET_LOCAL_OUT) {
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
if (!ipv6_addr_equal(&iph->daddr, &rt_info->daddr) ||
!ipv6_addr_equal(&iph->saddr, &rt_info->saddr) ||
skb->mark != rt_info->mark)
@@ -108,7 +108,7 @@ static int nf_ip6_route(struct net *net, struct dst_entry **dst,
__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, u_int8_t protocol)
{
- struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
__sum16 csum = 0;
switch (skb->ip_summed) {
@@ -142,7 +142,7 @@ static __sum16 nf_ip6_checksum_partial(struct sk_buff *skb, unsigned int hook,
unsigned int dataoff, unsigned int len,
u_int8_t protocol)
{
- struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
__wsum hsum;
__sum16 csum = 0;
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 5a1c6f27ffaf..94874b0bdcdc 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -340,6 +340,7 @@ ip6t_do_table(struct sk_buff *skb,
unsigned int *stackptr, origptr, cpu;
const struct xt_table_info *private;
struct xt_action_param acpar;
+ unsigned int addend;
/* Initialization */
indev = in ? in->name : nulldevname;
@@ -358,7 +359,8 @@ ip6t_do_table(struct sk_buff *skb,
IP_NF_ASSERT(table->valid_hooks & (1 << hook));
- xt_info_rdlock_bh();
+ local_bh_disable();
+ addend = xt_write_recseq_begin();
private = table->private;
cpu = smp_processor_id();
table_base = private->entries[cpu];
@@ -442,7 +444,9 @@ ip6t_do_table(struct sk_buff *skb,
} while (!acpar.hotdrop);
*stackptr = origptr;
- xt_info_rdunlock_bh();
+
+ xt_write_recseq_end(addend);
+ local_bh_enable();
#ifdef DEBUG_ALLOW_ALL
return NF_ACCEPT;
@@ -899,7 +903,7 @@ get_counters(const struct xt_table_info *t,
unsigned int i;
for_each_possible_cpu(cpu) {
- seqlock_t *lock = &per_cpu(xt_info_locks, cpu).lock;
+ seqcount_t *s = &per_cpu(xt_recseq, cpu);
i = 0;
xt_entry_foreach(iter, t->entries[cpu], t->size) {
@@ -907,10 +911,10 @@ get_counters(const struct xt_table_info *t,
unsigned int start;
do {
- start = read_seqbegin(lock);
+ start = read_seqcount_begin(s);
bcnt = iter->counters.bcnt;
pcnt = iter->counters.pcnt;
- } while (read_seqretry(lock, start));
+ } while (read_seqcount_retry(s, start));
ADD_COUNTER(counters[i], bcnt, pcnt);
++i;
@@ -1325,6 +1329,7 @@ do_add_counters(struct net *net, const void __user *user, unsigned int len,
int ret = 0;
const void *loc_cpu_entry;
struct ip6t_entry *iter;
+ unsigned int addend;
#ifdef CONFIG_COMPAT
struct compat_xt_counters_info compat_tmp;
@@ -1381,13 +1386,13 @@ do_add_counters(struct net *net, const void __user *user, unsigned int len,
i = 0;
/* Choose the copy that is on our node */
curcpu = smp_processor_id();
- xt_info_wrlock(curcpu);
+ addend = xt_write_recseq_begin();
loc_cpu_entry = private->entries[curcpu];
xt_entry_foreach(iter, loc_cpu_entry, private->size) {
ADD_COUNTER(iter->counters, paddc[i].bcnt, paddc[i].pcnt);
++i;
}
- xt_info_wrunlock(curcpu);
+ xt_write_recseq_end(addend);
unlock_up_free:
local_bh_enable();
@@ -1578,7 +1583,6 @@ compat_copy_entry_from_user(struct compat_ip6t_entry *e, void **dstptr,
struct xt_table_info *newinfo, unsigned char *base)
{
struct xt_entry_target *t;
- struct xt_target *target;
struct ip6t_entry *de;
unsigned int origsize;
int ret, h;
@@ -1600,7 +1604,6 @@ compat_copy_entry_from_user(struct compat_ip6t_entry *e, void **dstptr,
}
de->target_offset = e->target_offset - (origsize - *size);
t = compat_ip6t_get_target(e);
- target = t->u.kernel.target;
xt_compat_target_from_user(t, dstptr, size);
de->next_offset = e->next_offset - (origsize - *size);
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 679a0a3b7b3c..00d19173db7e 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -64,7 +64,8 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
(memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
skb->mark != mark ||
- ipv6_hdr(skb)->hop_limit != hop_limit))
+ ipv6_hdr(skb)->hop_limit != hop_limit ||
+ flowlabel != *((u_int32_t *)ipv6_hdr(skb))))
return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
return ret;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 4a1c3b46c56b..e5e5425fe7d0 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -67,8 +67,8 @@ static struct raw_hashinfo raw_v6_hashinfo = {
};
static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
- unsigned short num, struct in6_addr *loc_addr,
- struct in6_addr *rmt_addr, int dif)
+ unsigned short num, const struct in6_addr *loc_addr,
+ const struct in6_addr *rmt_addr, int dif)
{
struct hlist_node *node;
int is_multicast = ipv6_addr_is_multicast(loc_addr);
@@ -154,8 +154,8 @@ EXPORT_SYMBOL(rawv6_mh_filter_unregister);
*/
static int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
{
- struct in6_addr *saddr;
- struct in6_addr *daddr;
+ const struct in6_addr *saddr;
+ const struct in6_addr *daddr;
struct sock *sk;
int delivered = 0;
__u8 hash;
@@ -348,7 +348,7 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
{
struct sock *sk;
int hash;
- struct in6_addr *saddr, *daddr;
+ const struct in6_addr *saddr, *daddr;
struct net *net;
hash = nexthdr & (RAW_HTABLE_SIZE - 1);
@@ -357,7 +357,7 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
if (sk != NULL) {
/* Note: ipv6_hdr(skb) != skb->data */
- struct ipv6hdr *ip6h = (struct ipv6hdr *)skb->data;
+ const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
saddr = &ip6h->saddr;
daddr = &ip6h->daddr;
net = dev_net(skb->dev);
@@ -1231,7 +1231,7 @@ struct proto rawv6_prot = {
static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i)
{
struct ipv6_pinfo *np = inet6_sk(sp);
- struct in6_addr *dest, *src;
+ const struct in6_addr *dest, *src;
__u16 destp, srcp;
dest = &np->daddr;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 07beeb06f752..7b954e2539d0 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -224,7 +224,7 @@ out:
}
static __inline__ struct frag_queue *
-fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst)
+fq_find(struct net *net, __be32 id, const struct in6_addr *src, const struct in6_addr *dst)
{
struct inet_frag_queue *q;
struct ip6_create_arg arg;
@@ -535,7 +535,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
{
struct frag_hdr *fhdr;
struct frag_queue *fq;
- struct ipv6hdr *hdr = ipv6_hdr(skb);
+ const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct net *net = dev_net(skb_dst(skb)->dev);
IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fd0eec6f88c6..f1be5c5c85ef 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -89,12 +89,12 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, u32 mtu);
#ifdef CONFIG_IPV6_ROUTE_INFO
static struct rt6_info *rt6_add_route_info(struct net *net,
- struct in6_addr *prefix, int prefixlen,
- struct in6_addr *gwaddr, int ifindex,
+ const struct in6_addr *prefix, int prefixlen,
+ const struct in6_addr *gwaddr, int ifindex,
unsigned pref);
static struct rt6_info *rt6_get_route_info(struct net *net,
- struct in6_addr *prefix, int prefixlen,
- struct in6_addr *gwaddr, int ifindex);
+ const struct in6_addr *prefix, int prefixlen,
+ const struct in6_addr *gwaddr, int ifindex);
#endif
static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old)
@@ -227,9 +227,14 @@ static struct rt6_info ip6_blk_hole_entry_template = {
#endif
/* allocate dst with ip6_dst_ops */
-static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops)
+static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops,
+ struct net_device *dev)
{
- return (struct rt6_info *)dst_alloc(ops, 0);
+ struct rt6_info *rt = dst_alloc(ops, dev, 0, 0, 0);
+
+ memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry));
+
+ return rt;
}
static void ip6_dst_destroy(struct dst_entry *dst)
@@ -290,7 +295,7 @@ static __inline__ int rt6_check_expired(const struct rt6_info *rt)
time_after(jiffies, rt->rt6i_expires);
}
-static inline int rt6_need_strict(struct in6_addr *daddr)
+static inline int rt6_need_strict(const struct in6_addr *daddr)
{
return ipv6_addr_type(daddr) &
(IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
@@ -302,7 +307,7 @@ static inline int rt6_need_strict(struct in6_addr *daddr)
static inline struct rt6_info *rt6_device_match(struct net *net,
struct rt6_info *rt,
- struct in6_addr *saddr,
+ const struct in6_addr *saddr,
int oif,
int flags)
{
@@ -514,7 +519,7 @@ static struct rt6_info *rt6_select(struct fib6_node *fn, int oif, int strict)
#ifdef CONFIG_IPV6_ROUTE_INFO
int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
- struct in6_addr *gwaddr)
+ const struct in6_addr *gwaddr)
{
struct net *net = dev_net(dev);
struct route_info *rinfo = (struct route_info *) opt;
@@ -677,8 +682,8 @@ int ip6_ins_rt(struct rt6_info *rt)
return __ip6_ins_rt(rt, &info);
}
-static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *daddr,
- struct in6_addr *saddr)
+static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, const struct in6_addr *daddr,
+ const struct in6_addr *saddr)
{
struct rt6_info *rt;
@@ -746,7 +751,7 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort, struct in6_addr *dad
return rt;
}
-static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, struct in6_addr *daddr)
+static struct rt6_info *rt6_alloc_clone(struct rt6_info *ort, const struct in6_addr *daddr)
{
struct rt6_info *rt = ip6_rt_copy(ort);
if (rt) {
@@ -837,7 +842,7 @@ static struct rt6_info *ip6_pol_route_input(struct net *net, struct fib6_table *
void ip6_route_input(struct sk_buff *skb)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct net *net = dev_net(skb->dev);
int flags = RT6_LOOKUP_F_HAS_SADDR;
struct flowi6 fl6 = {
@@ -881,11 +886,13 @@ EXPORT_SYMBOL(ip6_route_output);
struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_orig)
{
- struct rt6_info *rt = dst_alloc(&ip6_dst_blackhole_ops, 1);
- struct rt6_info *ort = (struct rt6_info *) dst_orig;
+ struct rt6_info *rt, *ort = (struct rt6_info *) dst_orig;
struct dst_entry *new = NULL;
+ rt = dst_alloc(&ip6_dst_blackhole_ops, ort->dst.dev, 1, 0, 0);
if (rt) {
+ memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry));
+
new = &rt->dst;
new->__use = 1;
@@ -893,9 +900,6 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
new->output = dst_discard;
dst_copy_metrics(new, &ort->dst);
- new->dev = ort->dst.dev;
- if (new->dev)
- dev_hold(new->dev);
rt->rt6i_idev = ort->rt6i_idev;
if (rt->rt6i_idev)
in6_dev_hold(rt->rt6i_idev);
@@ -1038,13 +1042,12 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
if (unlikely(idev == NULL))
return NULL;
- rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
+ rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, dev);
if (unlikely(rt == NULL)) {
in6_dev_put(idev);
goto out;
}
- dev_hold(dev);
if (neigh)
neigh_hold(neigh);
else {
@@ -1053,7 +1056,6 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
neigh = NULL;
}
- rt->rt6i_dev = dev;
rt->rt6i_idev = idev;
rt->rt6i_nexthop = neigh;
atomic_set(&rt->dst.__refcnt, 1);
@@ -1212,7 +1214,7 @@ int ip6_route_add(struct fib6_config *cfg)
goto out;
}
- rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
+ rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, NULL);
if (rt == NULL) {
err = -ENOMEM;
@@ -1279,7 +1281,7 @@ int ip6_route_add(struct fib6_config *cfg)
}
if (cfg->fc_flags & RTF_GATEWAY) {
- struct in6_addr *gw_addr;
+ const struct in6_addr *gw_addr;
int gwa_type;
gw_addr = &cfg->fc_gateway;
@@ -1332,6 +1334,16 @@ int ip6_route_add(struct fib6_config *cfg)
if (dev == NULL)
goto out;
+ if (!ipv6_addr_any(&cfg->fc_prefsrc)) {
+ if (!ipv6_chk_addr(net, &cfg->fc_prefsrc, dev, 0)) {
+ err = -EINVAL;
+ goto out;
+ }
+ ipv6_addr_copy(&rt->rt6i_prefsrc.addr, &cfg->fc_prefsrc);
+ rt->rt6i_prefsrc.plen = 128;
+ } else
+ rt->rt6i_prefsrc.plen = 0;
+
if (cfg->fc_flags & (RTF_GATEWAY | RTF_NONEXTHOP)) {
rt->rt6i_nexthop = __neigh_lookup_errno(&nd_tbl, &rt->rt6i_gateway, dev);
if (IS_ERR(rt->rt6i_nexthop)) {
@@ -1509,9 +1521,9 @@ out:
return rt;
};
-static struct rt6_info *ip6_route_redirect(struct in6_addr *dest,
- struct in6_addr *src,
- struct in6_addr *gateway,
+static struct rt6_info *ip6_route_redirect(const struct in6_addr *dest,
+ const struct in6_addr *src,
+ const struct in6_addr *gateway,
struct net_device *dev)
{
int flags = RT6_LOOKUP_F_HAS_SADDR;
@@ -1533,8 +1545,8 @@ static struct rt6_info *ip6_route_redirect(struct in6_addr *dest,
flags, __ip6_route_redirect);
}
-void rt6_redirect(struct in6_addr *dest, struct in6_addr *src,
- struct in6_addr *saddr,
+void rt6_redirect(const struct in6_addr *dest, const struct in6_addr *src,
+ const struct in6_addr *saddr,
struct neighbour *neigh, u8 *lladdr, int on_link)
{
struct rt6_info *rt, *nrt = NULL;
@@ -1608,7 +1620,7 @@ out:
* i.e. Path MTU discovery
*/
-static void rt6_do_pmtu_disc(struct in6_addr *daddr, struct in6_addr *saddr,
+static void rt6_do_pmtu_disc(const struct in6_addr *daddr, const struct in6_addr *saddr,
struct net *net, u32 pmtu, int ifindex)
{
struct rt6_info *rt, *nrt;
@@ -1693,7 +1705,7 @@ out:
dst_release(&rt->dst);
}
-void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
+void rt6_pmtu_discovery(const struct in6_addr *daddr, const struct in6_addr *saddr,
struct net_device *dev, u32 pmtu)
{
struct net *net = dev_net(dev);
@@ -1721,7 +1733,8 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
{
struct net *net = dev_net(ort->rt6i_dev);
- struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
+ struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops,
+ ort->dst.dev);
if (rt) {
rt->dst.input = ort->dst.input;
@@ -1729,9 +1742,6 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
dst_copy_metrics(&rt->dst, &ort->dst);
rt->dst.error = ort->dst.error;
- rt->dst.dev = ort->dst.dev;
- if (rt->dst.dev)
- dev_hold(rt->dst.dev);
rt->rt6i_idev = ort->rt6i_idev;
if (rt->rt6i_idev)
in6_dev_hold(rt->rt6i_idev);
@@ -1753,8 +1763,8 @@ static struct rt6_info * ip6_rt_copy(struct rt6_info *ort)
#ifdef CONFIG_IPV6_ROUTE_INFO
static struct rt6_info *rt6_get_route_info(struct net *net,
- struct in6_addr *prefix, int prefixlen,
- struct in6_addr *gwaddr, int ifindex)
+ const struct in6_addr *prefix, int prefixlen,
+ const struct in6_addr *gwaddr, int ifindex)
{
struct fib6_node *fn;
struct rt6_info *rt = NULL;
@@ -1785,8 +1795,8 @@ out:
}
static struct rt6_info *rt6_add_route_info(struct net *net,
- struct in6_addr *prefix, int prefixlen,
- struct in6_addr *gwaddr, int ifindex,
+ const struct in6_addr *prefix, int prefixlen,
+ const struct in6_addr *gwaddr, int ifindex,
unsigned pref)
{
struct fib6_config cfg = {
@@ -1814,7 +1824,7 @@ static struct rt6_info *rt6_add_route_info(struct net *net,
}
#endif
-struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *dev)
+struct rt6_info *rt6_get_dflt_router(const struct in6_addr *addr, struct net_device *dev)
{
struct rt6_info *rt;
struct fib6_table *table;
@@ -1836,7 +1846,7 @@ struct rt6_info *rt6_get_dflt_router(struct in6_addr *addr, struct net_device *d
return rt;
}
-struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
+struct rt6_info *rt6_add_dflt_router(const struct in6_addr *gwaddr,
struct net_device *dev,
unsigned int pref)
{
@@ -2001,7 +2011,8 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
int anycast)
{
struct net *net = dev_net(idev->dev);
- struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
+ struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops,
+ net->loopback_dev);
struct neighbour *neigh;
if (rt == NULL) {
@@ -2011,13 +2022,11 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
return ERR_PTR(-ENOMEM);
}
- dev_hold(net->loopback_dev);
in6_dev_hold(idev);
rt->dst.flags = DST_HOST;
rt->dst.input = ip6_input;
rt->dst.output = ip6_output;
- rt->rt6i_dev = net->loopback_dev;
rt->rt6i_idev = idev;
rt->dst.obsolete = -1;
@@ -2043,6 +2052,55 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
return rt;
}
+int ip6_route_get_saddr(struct net *net,
+ struct rt6_info *rt,
+ const struct in6_addr *daddr,
+ unsigned int prefs,
+ struct in6_addr *saddr)
+{
+ struct inet6_dev *idev = ip6_dst_idev((struct dst_entry*)rt);
+ int err = 0;
+ if (rt->rt6i_prefsrc.plen)
+ ipv6_addr_copy(saddr, &rt->rt6i_prefsrc.addr);
+ else
+ err = ipv6_dev_get_saddr(net, idev ? idev->dev : NULL,
+ daddr, prefs, saddr);
+ return err;
+}
+
+/* remove deleted ip from prefsrc entries */
+struct arg_dev_net_ip {
+ struct net_device *dev;
+ struct net *net;
+ struct in6_addr *addr;
+};
+
+static int fib6_remove_prefsrc(struct rt6_info *rt, void *arg)
+{
+ struct net_device *dev = ((struct arg_dev_net_ip *)arg)->dev;
+ struct net *net = ((struct arg_dev_net_ip *)arg)->net;
+ struct in6_addr *addr = ((struct arg_dev_net_ip *)arg)->addr;
+
+ if (((void *)rt->rt6i_dev == dev || dev == NULL) &&
+ rt != net->ipv6.ip6_null_entry &&
+ ipv6_addr_equal(addr, &rt->rt6i_prefsrc.addr)) {
+ /* remove prefsrc entry */
+ rt->rt6i_prefsrc.plen = 0;
+ }
+ return 0;
+}
+
+void rt6_remove_prefsrc(struct inet6_ifaddr *ifp)
+{
+ struct net *net = dev_net(ifp->idev->dev);
+ struct arg_dev_net_ip adni = {
+ .dev = ifp->idev->dev,
+ .net = net,
+ .addr = &ifp->addr,
+ };
+ fib6_clean_all(net, fib6_remove_prefsrc, 0, &adni);
+}
+
struct arg_dev_net {
struct net_device *dev;
struct net *net;
@@ -2189,6 +2247,9 @@ static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh,
nla_memcpy(&cfg->fc_src, tb[RTA_SRC], plen);
}
+ if (tb[RTA_PREFSRC])
+ nla_memcpy(&cfg->fc_prefsrc, tb[RTA_PREFSRC], 16);
+
if (tb[RTA_OIF])
cfg->fc_ifindex = nla_get_u32(tb[RTA_OIF]);
@@ -2331,13 +2392,17 @@ static int rt6_fill_node(struct net *net,
#endif
NLA_PUT_U32(skb, RTA_IIF, iif);
} else if (dst) {
- struct inet6_dev *idev = ip6_dst_idev(&rt->dst);
struct in6_addr saddr_buf;
- if (ipv6_dev_get_saddr(net, idev ? idev->dev : NULL,
- dst, 0, &saddr_buf) == 0)
+ if (ip6_route_get_saddr(net, rt, dst, 0, &saddr_buf) == 0)
NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
}
+ if (rt->rt6i_prefsrc.plen) {
+ struct in6_addr saddr_buf;
+ ipv6_addr_copy(&saddr_buf, &rt->rt6i_prefsrc.addr);
+ NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
+ }
+
if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
goto nla_put_failure;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 43b33373adb2..a6a32b39b607 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -250,11 +250,6 @@ static struct ip_tunnel *ipip6_tunnel_locate(struct net *net,
dev_net_set(dev, net);
- if (strchr(name, '%')) {
- if (dev_alloc_name(dev, name) < 0)
- goto failed_free;
- }
-
nt = netdev_priv(dev);
nt->parms = *parms;
@@ -452,7 +447,7 @@ out:
}
static int
-isatap_chksrc(struct sk_buff *skb, struct iphdr *iph, struct ip_tunnel *t)
+isatap_chksrc(struct sk_buff *skb, const struct iphdr *iph, struct ip_tunnel *t)
{
struct ip_tunnel_prl_entry *p;
int ok = 1;
@@ -465,7 +460,8 @@ isatap_chksrc(struct sk_buff *skb, struct iphdr *iph, struct ip_tunnel *t)
else
skb->ndisc_nodetype = NDISC_NODETYPE_NODEFAULT;
} else {
- struct in6_addr *addr6 = &ipv6_hdr(skb)->saddr;
+ const struct in6_addr *addr6 = &ipv6_hdr(skb)->saddr;
+
if (ipv6_addr_is_isatap(addr6) &&
(addr6->s6_addr32[3] == iph->saddr) &&
ipv6_chk_prefix(addr6, t->dev))
@@ -499,7 +495,7 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
8 bytes of packet payload. It means, that precise relaying of
ICMP in the real Internet is absolutely infeasible.
*/
- struct iphdr *iph = (struct iphdr*)skb->data;
+ const struct iphdr *iph = (const struct iphdr *)skb->data;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
@@ -557,7 +553,7 @@ out:
return err;
}
-static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
+static inline void ipip6_ecn_decapsulate(const struct iphdr *iph, struct sk_buff *skb)
{
if (INET_ECN_is_ce(iph->tos))
IP6_ECN_set_ce(ipv6_hdr(skb));
@@ -565,7 +561,7 @@ static inline void ipip6_ecn_decapsulate(struct iphdr *iph, struct sk_buff *skb)
static int ipip6_rcv(struct sk_buff *skb)
{
- struct iphdr *iph;
+ const struct iphdr *iph;
struct ip_tunnel *tunnel;
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
@@ -621,7 +617,7 @@ out:
* comes from 6rd / 6to4 (RFC 3056) addr space.
*/
static inline
-__be32 try_6rd(struct in6_addr *v6dst, struct ip_tunnel *tunnel)
+__be32 try_6rd(const struct in6_addr *v6dst, struct ip_tunnel *tunnel)
{
__be32 dst = 0;
@@ -664,8 +660,8 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
{
struct ip_tunnel *tunnel = netdev_priv(dev);
struct pcpu_tstats *tstats;
- struct iphdr *tiph = &tunnel->parms.iph;
- struct ipv6hdr *iph6 = ipv6_hdr(skb);
+ const struct iphdr *tiph = &tunnel->parms.iph;
+ const struct ipv6hdr *iph6 = ipv6_hdr(skb);
u8 tos = tunnel->parms.iph.tos;
__be16 df = tiph->frag_off;
struct rtable *rt; /* Route to the other host */
@@ -673,8 +669,9 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
struct iphdr *iph; /* Our new IP header */
unsigned int max_headroom; /* The extra header space needed */
__be32 dst = tiph->daddr;
+ struct flowi4 fl4;
int mtu;
- struct in6_addr *addr6;
+ const struct in6_addr *addr6;
int addr_type;
if (skb->protocol != htons(ETH_P_IPV6))
@@ -693,7 +690,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
goto tx_error;
}
- addr6 = (struct in6_addr*)&neigh->primary_key;
+ addr6 = (const struct in6_addr*)&neigh->primary_key;
addr_type = ipv6_addr_type(addr6);
if ((addr_type & IPV6_ADDR_UNICAST) &&
@@ -718,7 +715,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
goto tx_error;
}
- addr6 = (struct in6_addr*)&neigh->primary_key;
+ addr6 = (const struct in6_addr*)&neigh->primary_key;
addr_type = ipv6_addr_type(addr6);
if (addr_type == IPV6_ADDR_ANY) {
@@ -732,7 +729,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
dst = addr6->s6_addr32[3];
}
- rt = ip_route_output_ports(dev_net(dev), NULL,
+ rt = ip_route_output_ports(dev_net(dev), &fl4, NULL,
dst, tiph->saddr,
0, 0,
IPPROTO_IPV6, RT_TOS(tos),
@@ -826,8 +823,8 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
iph->frag_off = df;
iph->protocol = IPPROTO_IPV6;
iph->tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
- iph->daddr = rt->rt_dst;
- iph->saddr = rt->rt_src;
+ iph->daddr = fl4.daddr;
+ iph->saddr = fl4.saddr;
if ((iph->ttl = tiph->ttl) == 0)
iph->ttl = iph6->hop_limit;
@@ -849,13 +846,14 @@ static void ipip6_tunnel_bind_dev(struct net_device *dev)
{
struct net_device *tdev = NULL;
struct ip_tunnel *tunnel;
- struct iphdr *iph;
+ const struct iphdr *iph;
+ struct flowi4 fl4;
tunnel = netdev_priv(dev);
iph = &tunnel->parms.iph;
if (iph->daddr) {
- struct rtable *rt = ip_route_output_ports(dev_net(dev), NULL,
+ struct rtable *rt = ip_route_output_ports(dev_net(dev), &fl4, NULL,
iph->daddr, iph->saddr,
0, 0,
IPPROTO_IPV6,
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 352c26081f5d..8b9644a8b697 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -66,7 +66,7 @@ static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
ipv6_cookie_scratch);
-static u32 cookie_hash(struct in6_addr *saddr, struct in6_addr *daddr,
+static u32 cookie_hash(const struct in6_addr *saddr, const struct in6_addr *daddr,
__be16 sport, __be16 dport, u32 count, int c)
{
__u32 *tmp = __get_cpu_var(ipv6_cookie_scratch);
@@ -86,7 +86,8 @@ static u32 cookie_hash(struct in6_addr *saddr, struct in6_addr *daddr,
return tmp[17];
}
-static __u32 secure_tcp_syn_cookie(struct in6_addr *saddr, struct in6_addr *daddr,
+static __u32 secure_tcp_syn_cookie(const struct in6_addr *saddr,
+ const struct in6_addr *daddr,
__be16 sport, __be16 dport, __u32 sseq,
__u32 count, __u32 data)
{
@@ -96,8 +97,8 @@ static __u32 secure_tcp_syn_cookie(struct in6_addr *saddr, struct in6_addr *dadd
& COOKIEMASK));
}
-static __u32 check_tcp_syn_cookie(__u32 cookie, struct in6_addr *saddr,
- struct in6_addr *daddr, __be16 sport,
+static __u32 check_tcp_syn_cookie(__u32 cookie, const struct in6_addr *saddr,
+ const struct in6_addr *daddr, __be16 sport,
__be16 dport, __u32 sseq, __u32 count,
__u32 maxdiff)
{
@@ -116,7 +117,7 @@ static __u32 check_tcp_syn_cookie(__u32 cookie, struct in6_addr *saddr,
__u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
const struct tcphdr *th = tcp_hdr(skb);
int mssind;
const __u16 mss = *mssp;
@@ -138,7 +139,7 @@ __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
const struct tcphdr *th = tcp_hdr(skb);
__u32 seq = ntohl(th->seq) - 1;
__u32 mssind = check_tcp_syn_cookie(cookie, &iph->saddr, &iph->daddr,
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 4f49e5dd41bb..868366470b4a 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -76,8 +76,8 @@ static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb);
static void __tcp_v6_send_check(struct sk_buff *skb,
- struct in6_addr *saddr,
- struct in6_addr *daddr);
+ const struct in6_addr *saddr,
+ const struct in6_addr *daddr);
static const struct inet_connection_sock_af_ops ipv6_mapped;
static const struct inet_connection_sock_af_ops ipv6_specific;
@@ -86,7 +86,7 @@ static const struct tcp_sock_af_ops tcp_sock_ipv6_specific;
static const struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific;
#else
static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
- struct in6_addr *addr)
+ const struct in6_addr *addr)
{
return NULL;
}
@@ -106,8 +106,8 @@ static void tcp_v6_hash(struct sock *sk)
}
static __inline__ __sum16 tcp_v6_check(int len,
- struct in6_addr *saddr,
- struct in6_addr *daddr,
+ const struct in6_addr *saddr,
+ const struct in6_addr *daddr,
__wsum base)
{
return csum_ipv6_magic(saddr, daddr, len, IPPROTO_TCP, base);
@@ -331,7 +331,7 @@ failure:
static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
u8 type, u8 code, int offset, __be32 info)
{
- struct ipv6hdr *hdr = (struct ipv6hdr*)skb->data;
+ const struct ipv6hdr *hdr = (const struct ipv6hdr*)skb->data;
const struct tcphdr *th = (struct tcphdr *)(skb->data+offset);
struct ipv6_pinfo *np;
struct sock *sk;
@@ -551,7 +551,7 @@ static void tcp_v6_reqsk_destructor(struct request_sock *req)
#ifdef CONFIG_TCP_MD5SIG
static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
- struct in6_addr *addr)
+ const struct in6_addr *addr)
{
struct tcp_sock *tp = tcp_sk(sk);
int i;
@@ -580,7 +580,7 @@ static struct tcp_md5sig_key *tcp_v6_reqsk_md5_lookup(struct sock *sk,
return tcp_v6_md5_do_lookup(sk, &inet6_rsk(req)->rmt_addr);
}
-static int tcp_v6_md5_do_add(struct sock *sk, struct in6_addr *peer,
+static int tcp_v6_md5_do_add(struct sock *sk, const struct in6_addr *peer,
char *newkey, u8 newkeylen)
{
/* Add key to the list */
@@ -645,7 +645,7 @@ static int tcp_v6_md5_add_func(struct sock *sk, struct sock *addr_sk,
newkey, newkeylen);
}
-static int tcp_v6_md5_do_del(struct sock *sk, struct in6_addr *peer)
+static int tcp_v6_md5_do_del(struct sock *sk, const struct in6_addr *peer)
{
struct tcp_sock *tp = tcp_sk(sk);
int i;
@@ -753,8 +753,8 @@ static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval,
}
static int tcp_v6_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
- struct in6_addr *daddr,
- struct in6_addr *saddr, int nbytes)
+ const struct in6_addr *daddr,
+ const struct in6_addr *saddr, int nbytes)
{
struct tcp6_pseudohdr *bp;
struct scatterlist sg;
@@ -771,7 +771,7 @@ static int tcp_v6_md5_hash_pseudoheader(struct tcp_md5sig_pool *hp,
}
static int tcp_v6_md5_hash_hdr(char *md5_hash, struct tcp_md5sig_key *key,
- struct in6_addr *daddr, struct in6_addr *saddr,
+ const struct in6_addr *daddr, struct in6_addr *saddr,
struct tcphdr *th)
{
struct tcp_md5sig_pool *hp;
@@ -807,7 +807,7 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
struct sock *sk, struct request_sock *req,
struct sk_buff *skb)
{
- struct in6_addr *saddr, *daddr;
+ const struct in6_addr *saddr, *daddr;
struct tcp_md5sig_pool *hp;
struct hash_desc *desc;
struct tcphdr *th = tcp_hdr(skb);
@@ -819,7 +819,7 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
saddr = &inet6_rsk(req)->loc_addr;
daddr = &inet6_rsk(req)->rmt_addr;
} else {
- struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
saddr = &ip6h->saddr;
daddr = &ip6h->daddr;
}
@@ -857,7 +857,7 @@ static int tcp_v6_inbound_md5_hash (struct sock *sk, struct sk_buff *skb)
{
__u8 *hash_location = NULL;
struct tcp_md5sig_key *hash_expected;
- struct ipv6hdr *ip6h = ipv6_hdr(skb);
+ const struct ipv6hdr *ip6h = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
int genhash;
u8 newhash[16];
@@ -915,7 +915,7 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
#endif
static void __tcp_v6_send_check(struct sk_buff *skb,
- struct in6_addr *saddr, struct in6_addr *daddr)
+ const struct in6_addr *saddr, const struct in6_addr *daddr)
{
struct tcphdr *th = tcp_hdr(skb);
@@ -939,7 +939,7 @@ static void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
static int tcp_v6_gso_send_check(struct sk_buff *skb)
{
- struct ipv6hdr *ipv6h;
+ const struct ipv6hdr *ipv6h;
struct tcphdr *th;
if (!pskb_may_pull(skb, sizeof(*th)))
@@ -957,7 +957,7 @@ static int tcp_v6_gso_send_check(struct sk_buff *skb)
static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
struct sk_buff *skb)
{
- struct ipv6hdr *iph = skb_gro_network_header(skb);
+ const struct ipv6hdr *iph = skb_gro_network_header(skb);
switch (skb->ip_summed) {
case CHECKSUM_COMPLETE:
@@ -978,7 +978,7 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
static int tcp6_gro_complete(struct sk_buff *skb)
{
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
struct tcphdr *th = tcp_hdr(skb);
th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb),
@@ -1469,7 +1469,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
First: no IPv4 options.
*/
- newinet->opt = NULL;
+ newinet->inet_opt = NULL;
newnp->ipv6_fl_list = NULL;
/* Clone RX bits */
@@ -1702,7 +1702,7 @@ ipv6_pktoptions:
static int tcp_v6_rcv(struct sk_buff *skb)
{
struct tcphdr *th;
- struct ipv6hdr *hdr;
+ const struct ipv6hdr *hdr;
struct sock *sk;
int ret;
struct net *net = dev_net(skb->dev);
@@ -2028,8 +2028,8 @@ static void get_openreq6(struct seq_file *seq,
struct sock *sk, struct request_sock *req, int i, int uid)
{
int ttd = req->expires - jiffies;
- struct in6_addr *src = &inet6_rsk(req)->loc_addr;
- struct in6_addr *dest = &inet6_rsk(req)->rmt_addr;
+ const struct in6_addr *src = &inet6_rsk(req)->loc_addr;
+ const struct in6_addr *dest = &inet6_rsk(req)->rmt_addr;
if (ttd < 0)
ttd = 0;
@@ -2057,7 +2057,7 @@ static void get_openreq6(struct seq_file *seq,
static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
{
- struct in6_addr *dest, *src;
+ const struct in6_addr *dest, *src;
__u16 destp, srcp;
int timer_active;
unsigned long timer_expires;
@@ -2114,7 +2114,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
static void get_timewait6_sock(struct seq_file *seq,
struct inet_timewait_sock *tw, int i)
{
- struct in6_addr *dest, *src;
+ const struct in6_addr *dest, *src;
__u16 destp, srcp;
struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
int ttd = tw->tw_ttd - jiffies;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 9e305d74b3d4..fc0c42a88e54 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -311,7 +311,7 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
struct udp_table *udptable)
{
struct sock *sk;
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
if (unlikely(sk = skb_steal_sock(skb)))
return sk;
@@ -463,9 +463,9 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
struct udp_table *udptable)
{
struct ipv6_pinfo *np;
- struct ipv6hdr *hdr = (struct ipv6hdr*)skb->data;
- struct in6_addr *saddr = &hdr->saddr;
- struct in6_addr *daddr = &hdr->daddr;
+ const struct ipv6hdr *hdr = (const struct ipv6hdr *)skb->data;
+ const struct in6_addr *saddr = &hdr->saddr;
+ const struct in6_addr *daddr = &hdr->daddr;
struct udphdr *uh = (struct udphdr*)(skb->data+offset);
struct sock *sk;
int err;
@@ -553,8 +553,8 @@ drop_no_sk_drops_inc:
}
static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk,
- __be16 loc_port, struct in6_addr *loc_addr,
- __be16 rmt_port, struct in6_addr *rmt_addr,
+ __be16 loc_port, const struct in6_addr *loc_addr,
+ __be16 rmt_port, const struct in6_addr *rmt_addr,
int dif)
{
struct hlist_nulls_node *node;
@@ -633,7 +633,7 @@ drop:
* so we don't need to lock the hashes.
*/
static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
- struct in6_addr *saddr, struct in6_addr *daddr,
+ const struct in6_addr *saddr, const struct in6_addr *daddr,
struct udp_table *udptable)
{
struct sock *sk, *stack[256 / sizeof(struct sock *)];
@@ -716,7 +716,7 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
struct net *net = dev_net(skb->dev);
struct sock *sk;
struct udphdr *uh;
- struct in6_addr *saddr, *daddr;
+ const struct in6_addr *saddr, *daddr;
u32 ulen = 0;
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
@@ -1278,7 +1278,7 @@ int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
static int udp6_ufo_send_check(struct sk_buff *skb)
{
- struct ipv6hdr *ipv6h;
+ const struct ipv6hdr *ipv6h;
struct udphdr *uh;
if (!pskb_may_pull(skb, sizeof(*uh)))
@@ -1328,7 +1328,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, u32 features)
/* Do software UFO. Complete and fill in the UDP checksum as HW cannot
* do checksum of UDP packets sent as multiple IP fragments.
*/
- offset = skb->csum_start - skb_headroom(skb);
+ offset = skb_checksum_start_offset(skb);
csum = skb_checksum(skb, offset, skb->len- offset, 0);
offset += skb->csum_offset;
*(__sum16 *)(skb->data + offset) = csum_fold(csum);
@@ -1382,7 +1382,7 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket
{
struct inet_sock *inet = inet_sk(sp);
struct ipv6_pinfo *np = inet6_sk(sp);
- struct in6_addr *dest, *src;
+ const struct in6_addr *dest, *src;
__u16 destp, srcp;
dest = &np->daddr;
diff --git a/net/ipv6/xfrm6_mode_beet.c b/net/ipv6/xfrm6_mode_beet.c
index bbd48b101bae..3437d7d4eed6 100644
--- a/net/ipv6/xfrm6_mode_beet.c
+++ b/net/ipv6/xfrm6_mode_beet.c
@@ -41,10 +41,8 @@ static int xfrm6_beet_output(struct xfrm_state *x, struct sk_buff *skb)
{
struct ipv6hdr *top_iph;
struct ip_beet_phdr *ph;
- struct iphdr *iphv4;
int optlen, hdr_len;
- iphv4 = ip_hdr(skb);
hdr_len = 0;
optlen = XFRM_MODE_SKB_CB(skb)->optlen;
if (unlikely(optlen))
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 645cb968d450..4d6edff0498f 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -20,7 +20,7 @@
static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
{
- struct ipv6hdr *outer_iph = ipv6_hdr(skb);
+ const struct ipv6hdr *outer_iph = ipv6_hdr(skb);
struct ipv6hdr *inner_iph = ipipv6_hdr(skb);
if (INET_ECN_is_ce(ipv6_get_dsfield(outer_iph)))
@@ -55,8 +55,8 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
dsfield &= ~INET_ECN_MASK;
ipv6_change_dsfield(top_iph, 0, dsfield);
top_iph->hop_limit = ip6_dst_hoplimit(dst->child);
- ipv6_addr_copy(&top_iph->saddr, (struct in6_addr *)&x->props.saddr);
- ipv6_addr_copy(&top_iph->daddr, (struct in6_addr *)&x->id.daddr);
+ ipv6_addr_copy(&top_iph->saddr, (const struct in6_addr *)&x->props.saddr);
+ ipv6_addr_copy(&top_iph->daddr, (const struct in6_addr *)&x->id.daddr);
return 0;
}
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 05e34c8ec913..d879f7efbd10 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -124,7 +124,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
struct flowi6 *fl6 = &fl->u.ip6;
int onlyproto = 0;
u16 offset = skb_network_header_len(skb);
- struct ipv6hdr *hdr = ipv6_hdr(skb);
+ const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct ipv6_opt_hdr *exthdr;
const unsigned char *nh = skb_network_header(skb);
u8 nexthdr = nh[IP6CB(skb)->nhoff];
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index 2969cad408de..a6770a04e3bd 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -68,7 +68,7 @@ static DEFINE_SPINLOCK(xfrm6_tunnel_spi_lock);
static struct kmem_cache *xfrm6_tunnel_spi_kmem __read_mostly;
-static inline unsigned xfrm6_tunnel_spi_hash_byaddr(xfrm_address_t *addr)
+static inline unsigned xfrm6_tunnel_spi_hash_byaddr(const xfrm_address_t *addr)
{
unsigned h;
@@ -85,7 +85,7 @@ static inline unsigned xfrm6_tunnel_spi_hash_byspi(u32 spi)
return spi % XFRM6_TUNNEL_SPI_BYSPI_HSIZE;
}
-static struct xfrm6_tunnel_spi *__xfrm6_tunnel_spi_lookup(struct net *net, xfrm_address_t *saddr)
+static struct xfrm6_tunnel_spi *__xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr)
{
struct xfrm6_tunnel_net *xfrm6_tn = xfrm6_tunnel_pernet(net);
struct xfrm6_tunnel_spi *x6spi;
@@ -101,7 +101,7 @@ static struct xfrm6_tunnel_spi *__xfrm6_tunnel_spi_lookup(struct net *net, xfrm_
return NULL;
}
-__be32 xfrm6_tunnel_spi_lookup(struct net *net, xfrm_address_t *saddr)
+__be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr)
{
struct xfrm6_tunnel_spi *x6spi;
u32 spi;
@@ -237,10 +237,10 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
static int xfrm6_tunnel_rcv(struct sk_buff *skb)
{
struct net *net = dev_net(skb->dev);
- struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
__be32 spi;
- spi = xfrm6_tunnel_spi_lookup(net, (xfrm_address_t *)&iph->saddr);
+ spi = xfrm6_tunnel_spi_lookup(net, (const xfrm_address_t *)&iph->saddr);
return xfrm6_rcv_spi(skb, IPPROTO_IPV6, spi) > 0 ? : 0;
}