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-rw-r--r--include/linux/in6.h8
-rw-r--r--include/net/addrconf.h11
-rw-r--r--net/ipv6/addrconf.c25
-rw-r--r--net/ipv6/mcast.c23
-rw-r--r--net/ipv6/ndisc.c5
5 files changed, 24 insertions, 48 deletions
diff --git a/include/linux/in6.h b/include/linux/in6.h
index e6aa8de2b93..bc492048c34 100644
--- a/include/linux/in6.h
+++ b/include/linux/in6.h
@@ -48,6 +48,14 @@ extern const struct in6_addr in6addr_any;
#define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
extern const struct in6_addr in6addr_loopback;
#define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+#ifdef __KERNEL__
+extern const struct in6_addr in6addr_linklocal_allnodes;
+#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
+ { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+extern const struct in6_addr in6addr_linklocal_allrouters;
+#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
+ { { { 0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2 } } }
+#endif
struct sockaddr_in6 {
unsigned short int sin6_family; /* AF_INET6 */
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 92af23d66eb..0a2f0372df3 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -205,17 +205,6 @@ static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
htonl(0xFF000000) | addr->s6_addr32[3]);
}
-
-static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
-{
- ipv6_addr_set(addr, htonl(0xFF020000), 0, 0, htonl(0x1));
-}
-
-static inline void ipv6_addr_all_routers(struct in6_addr *addr)
-{
- ipv6_addr_set(addr, htonl(0xFF020000), 0, 0, htonl(0x2));
-}
-
static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
{
return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 4048c2b73b0..7df04d29492 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -222,6 +222,8 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
/* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */
const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+const struct in6_addr in6addr_linklocal_allnodes = IN6ADDR_LINKLOCAL_ALLNODES_INIT;
+const struct in6_addr in6addr_linklocal_allrouters = IN6ADDR_LINKLOCAL_ALLROUTERS_INIT;
/* Check if a valid qdisc is available */
static inline int addrconf_qdisc_ok(struct net_device *dev)
@@ -321,7 +323,6 @@ EXPORT_SYMBOL(in6_dev_finish_destroy);
static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
{
struct inet6_dev *ndev;
- struct in6_addr maddr;
ASSERT_RTNL();
@@ -406,8 +407,7 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev)
rcu_assign_pointer(dev->ip6_ptr, ndev);
/* Join all-node multicast group */
- ipv6_addr_all_nodes(&maddr);
- ipv6_dev_mc_inc(dev, &maddr);
+ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allnodes);
return ndev;
}
@@ -433,18 +433,15 @@ static void dev_forward_change(struct inet6_dev *idev)
{
struct net_device *dev;
struct inet6_ifaddr *ifa;
- struct in6_addr addr;
if (!idev)
return;
dev = idev->dev;
if (dev && (dev->flags & IFF_MULTICAST)) {
- ipv6_addr_all_routers(&addr);
-
if (idev->cnf.forwarding)
- ipv6_dev_mc_inc(dev, &addr);
+ ipv6_dev_mc_inc(dev, &in6addr_linklocal_allrouters);
else
- ipv6_dev_mc_dec(dev, &addr);
+ ipv6_dev_mc_dec(dev, &in6addr_linklocal_allrouters);
}
for (ifa=idev->addr_list; ifa; ifa=ifa->if_next) {
if (ifa->flags&IFA_F_TENTATIVE)
@@ -2654,8 +2651,6 @@ static void addrconf_rs_timer(unsigned long data)
spin_lock(&ifp->lock);
if (ifp->probes++ < ifp->idev->cnf.rtr_solicits) {
- struct in6_addr all_routers;
-
/* The wait after the last probe can be shorter */
addrconf_mod_timer(ifp, AC_RS,
(ifp->probes == ifp->idev->cnf.rtr_solicits) ?
@@ -2663,9 +2658,7 @@ static void addrconf_rs_timer(unsigned long data)
ifp->idev->cnf.rtr_solicit_interval);
spin_unlock(&ifp->lock);
- ipv6_addr_all_routers(&all_routers);
-
- ndisc_send_rs(ifp->idev->dev, &ifp->addr, &all_routers);
+ ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
} else {
spin_unlock(&ifp->lock);
/*
@@ -2806,16 +2799,12 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
ifp->idev->cnf.rtr_solicits > 0 &&
(dev->flags&IFF_LOOPBACK) == 0 &&
(ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
- struct in6_addr all_routers;
-
- ipv6_addr_all_routers(&all_routers);
-
/*
* If a host as already performed a random delay
* [...] as part of DAD [...] there is no need
* to delay again before sending the first RS
*/
- ndisc_send_rs(ifp->idev->dev, &ifp->addr, &all_routers);
+ ndisc_send_rs(ifp->idev->dev, &ifp->addr, &in6addr_linklocal_allrouters);
spin_lock_bh(&ifp->lock);
ifp->probes = 1;
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 0a0132a1c44..c2dc2e2b6c0 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1766,10 +1766,9 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
struct inet6_dev *idev;
struct sk_buff *skb;
struct icmp6hdr *hdr;
- struct in6_addr *snd_addr;
+ const struct in6_addr *snd_addr;
struct in6_addr *addrp;
struct in6_addr addr_buf;
- struct in6_addr all_routers;
int err, len, payload_len, full_len;
u8 ra[8] = { IPPROTO_ICMPV6, 0,
IPV6_TLV_ROUTERALERT, 2, 0, 0,
@@ -1780,11 +1779,10 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
IP6_INC_STATS(__in6_dev_get(dev),
IPSTATS_MIB_OUTREQUESTS);
rcu_read_unlock();
- snd_addr = addr;
- if (type == ICMPV6_MGM_REDUCTION) {
- snd_addr = &all_routers;
- ipv6_addr_all_routers(&all_routers);
- }
+ if (type == ICMPV6_MGM_REDUCTION)
+ snd_addr = &in6addr_linklocal_allrouters;
+ else
+ snd_addr = addr;
len = sizeof(struct icmp6hdr) + sizeof(struct in6_addr);
payload_len = len + sizeof(ra);
@@ -2309,24 +2307,19 @@ void ipv6_mc_init_dev(struct inet6_dev *idev)
void ipv6_mc_destroy_dev(struct inet6_dev *idev)
{
struct ifmcaddr6 *i;
- struct in6_addr maddr;
/* Deactivate timers */
ipv6_mc_down(idev);
/* Delete all-nodes address. */
- ipv6_addr_all_nodes(&maddr);
-
/* We cannot call ipv6_dev_mc_dec() directly, our caller in
* addrconf.c has NULL'd out dev->ip6_ptr so in6_dev_get() will
* fail.
*/
- __ipv6_dev_mc_dec(idev, &maddr);
+ __ipv6_dev_mc_dec(idev, &in6addr_linklocal_allnodes);
- if (idev->cnf.forwarding) {
- ipv6_addr_all_routers(&maddr);
- __ipv6_dev_mc_dec(idev, &maddr);
- }
+ if (idev->cnf.forwarding)
+ __ipv6_dev_mc_dec(idev, &in6addr_linklocal_allrouters);
write_lock_bh(&idev->lock);
while ((i = idev->mc_list) != NULL) {
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 5b9ad5e2f56..2c74885f835 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -818,10 +818,7 @@ static void ndisc_recv_ns(struct sk_buff *skb)
is_router = !!idev->cnf.forwarding;
if (dad) {
- struct in6_addr maddr;
-
- ipv6_addr_all_nodes(&maddr);
- ndisc_send_na(dev, NULL, &maddr, &msg->target,
+ ndisc_send_na(dev, NULL, &in6addr_linklocal_allnodes, &msg->target,
is_router, 0, (ifp != NULL), 1);
goto out;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-13 22:49:29 +0000