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[IPV4] net/ipv4: Use ipv4_is_<type> 

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joe Perches 2007-12-16 13:45:43 -08:00 committed by David S. Miller
parent 21cf2253eb
commit f97c1e0c6e
10 changed files with 60 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/ipv4/arp.c
View File

@ -777,7 +777,7 @@ static int arp_process(struct sk_buff *skb)
* Check for bad requests for 127.x.x.x and requests for multicast
* addresses. If this is one such, delete it.
*/
if (LOOPBACK(tip) || MULTICAST(tip))
if (ipv4_is_loopback(tip) || ipv4_is_multicast(tip))
goto out;
/*

2
net/ipv4/datagram.c
View File

@ -40,7 +40,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
oif = sk->sk_bound_dev_if;
saddr = inet->saddr;
if (MULTICAST(usin->sin_addr.s_addr)) {
if (ipv4_is_multicast(usin->sin_addr.s_addr)) {
if (!oif)
oif = inet->mc_index;
if (!saddr)

4
net/ipv4/devinet.c
View File

@ -404,7 +404,7 @@ static int inet_set_ifa(struct net_device *dev, struct in_ifaddr *ifa)
in_dev_hold(in_dev);
ifa->ifa_dev = in_dev;
}
if (LOOPBACK(ifa->ifa_local))
if (ipv4_is_loopback(ifa->ifa_local))
ifa->ifa_scope = RT_SCOPE_HOST;
return inet_insert_ifa(ifa);
}
@ -583,7 +583,7 @@ static __inline__ int inet_abc_len(__be32 addr)
{
int rc = -1; /* Something else, probably a multicast. */
if (ZERONET(addr))
if (ipv4_is_zeronet(addr))
rc = 0;
else {
__u32 haddr = ntohl(addr);

6
net/ipv4/fib_frontend.c
View File

@ -167,9 +167,9 @@ static inline unsigned __inet_dev_addr_type(const struct net_device *dev,
unsigned ret = RTN_BROADCAST;
struct fib_table *local_table;
if (ZERONET(addr) || BADCLASS(addr))
if (ipv4_is_zeronet(addr) || ipv4_is_badclass(addr))
return RTN_BROADCAST;
if (MULTICAST(addr))
if (ipv4_is_multicast(addr))
return RTN_MULTICAST;
#ifdef CONFIG_IP_MULTIPLE_TABLES
@ -710,7 +710,7 @@ void fib_add_ifaddr(struct in_ifaddr *ifa)
if (ifa->ifa_broadcast && ifa->ifa_broadcast != htonl(0xFFFFFFFF))
fib_magic(RTM_NEWROUTE, RTN_BROADCAST, ifa->ifa_broadcast, 32, prim);
if (!ZERONET(prefix) && !(ifa->ifa_flags&IFA_F_SECONDARY) &&
if (!ipv4_is_zeronet(prefix) && !(ifa->ifa_flags&IFA_F_SECONDARY) &&
(prefix != addr || ifa->ifa_prefixlen < 32)) {
fib_magic(RTM_NEWROUTE, dev->flags&IFF_LOOPBACK ? RTN_LOCAL :
RTN_UNICAST, prefix, ifa->ifa_prefixlen, prim);

12
net/ipv4/igmp.c
View File

@ -1742,7 +1742,7 @@ int ip_mc_join_group(struct sock *sk , struct ip_mreqn *imr)
int ifindex;
int count = 0;
if (!MULTICAST(addr))
if (!ipv4_is_multicast(addr))
return -EINVAL;
rtnl_lock();
@ -1855,7 +1855,7 @@ int ip_mc_source(int add, int omode, struct sock *sk, struct
int leavegroup = 0;
int i, j, rv;
if (!MULTICAST(addr))
if (!ipv4_is_multicast(addr))
return -EINVAL;
rtnl_lock();
@ -1985,7 +1985,7 @@ int ip_mc_msfilter(struct sock *sk, struct ip_msfilter *msf, int ifindex)
struct ip_sf_socklist *newpsl, *psl;
int leavegroup = 0;
if (!MULTICAST(addr))
if (!ipv4_is_multicast(addr))
return -EINVAL;
if (msf->imsf_fmode != MCAST_INCLUDE &&
msf->imsf_fmode != MCAST_EXCLUDE)
@ -2068,7 +2068,7 @@ int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
struct inet_sock *inet = inet_sk(sk);
struct ip_sf_socklist *psl;
if (!MULTICAST(addr))
if (!ipv4_is_multicast(addr))
return -EINVAL;
rtnl_lock();
@ -2130,7 +2130,7 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
if (psin->sin_family != AF_INET)
return -EINVAL;
addr = psin->sin_addr.s_addr;
if (!MULTICAST(addr))
if (!ipv4_is_multicast(addr))
return -EINVAL;
rtnl_lock();
@ -2180,7 +2180,7 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif)
struct ip_sf_socklist *psl;
int i;
if (!MULTICAST(loc_addr))
if (!ipv4_is_multicast(loc_addr))
return 1;
for (pmc=inet->mc_list; pmc; pmc=pmc->next) {

23
net/ipv4/ip_gre.c
View File

@ -176,7 +176,8 @@ static struct ip_tunnel * ipgre_tunnel_lookup(__be32 remote, __be32 local, __be3
}
for (t = tunnels_l[h1]; t; t = t->next) {
if (local == t->parms.iph.saddr ||
(local == t->parms.iph.daddr && MULTICAST(local))) {
(local == t->parms.iph.daddr &&
ipv4_is_multicast(local))) {
if (t->parms.i_key == key && (t->dev->flags&IFF_UP))
return t;
}
@ -201,7 +202,7 @@ static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
if (local)
prio |= 1;
if (remote && !MULTICAST(remote)) {
if (remote && !ipv4_is_multicast(remote)) {
prio |= 2;
h ^= HASH(remote);
}
@ -367,7 +368,8 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
read_lock(&ipgre_lock);
t = ipgre_tunnel_lookup(iph->daddr, iph->saddr, (flags&GRE_KEY) ? *(((__be32*)p) + (grehlen>>2) - 1) : 0);
if (t == NULL || t->parms.iph.daddr == 0 || MULTICAST(t->parms.iph.daddr))
if (t == NULL || t->parms.iph.daddr == 0 ||
ipv4_is_multicast(t->parms.iph.daddr))
goto out;
if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
@ -619,7 +621,7 @@ static int ipgre_rcv(struct sk_buff *skb)
skb_postpull_rcsum(skb, skb_transport_header(skb), offset);
skb->pkt_type = PACKET_HOST;
#ifdef CONFIG_NET_IPGRE_BROADCAST
if (MULTICAST(iph->daddr)) {
if (ipv4_is_multicast(iph->daddr)) {
/* Looped back packet, drop it! */
if (((struct rtable*)skb->dst)->fl.iif == 0)
goto drop;
@ -783,7 +785,8 @@ static int ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
struct rt6_info *rt6 = (struct rt6_info*)skb->dst;
if (rt6 && mtu < dst_mtu(skb->dst) && mtu >= IPV6_MIN_MTU) {
if ((tunnel->parms.iph.daddr && !MULTICAST(tunnel->parms.iph.daddr)) ||
if ((tunnel->parms.iph.daddr &&
!ipv4_is_multicast(tunnel->parms.iph.daddr)) ||
rt6->rt6i_dst.plen == 128) {
rt6->rt6i_flags |= RTF_MODIFIED;
skb->dst->metrics[RTAX_MTU-1] = mtu;
@ -1009,7 +1012,7 @@ ipgre_tunnel_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd)
t = netdev_priv(dev);
if (MULTICAST(p.iph.daddr))
if (ipv4_is_multicast(p.iph.daddr))
nflags = IFF_BROADCAST;
else if (p.iph.daddr)
nflags = IFF_POINTOPOINT;
@ -1143,7 +1146,7 @@ static int ipgre_header(struct sk_buff *skb, struct net_device *dev,
memcpy(&iph->daddr, daddr, 4);
return t->hlen;
}
if (iph->daddr && !MULTICAST(iph->daddr))
if (iph->daddr && !ipv4_is_multicast(iph->daddr))
return t->hlen;
return -t->hlen;
@ -1166,7 +1169,7 @@ static int ipgre_open(struct net_device *dev)
{
struct ip_tunnel *t = netdev_priv(dev);
if (MULTICAST(t->parms.iph.daddr)) {
if (ipv4_is_multicast(t->parms.iph.daddr)) {
struct flowi fl = { .oif = t->parms.link,
.nl_u = { .ip4_u =
{ .daddr = t->parms.iph.daddr,
@ -1189,7 +1192,7 @@ static int ipgre_open(struct net_device *dev)
static int ipgre_close(struct net_device *dev)
{
struct ip_tunnel *t = netdev_priv(dev);
if (MULTICAST(t->parms.iph.daddr) && t->mlink) {
if (ipv4_is_multicast(t->parms.iph.daddr) && t->mlink) {
struct in_device *in_dev = inetdev_by_index(t->mlink);
if (in_dev) {
ip_mc_dec_group(in_dev, t->parms.iph.daddr);
@ -1236,7 +1239,7 @@ static int ipgre_tunnel_init(struct net_device *dev)
if (iph->daddr) {
#ifdef CONFIG_NET_IPGRE_BROADCAST
if (MULTICAST(iph->daddr)) {
if (ipv4_is_multicast(iph->daddr)) {
if (!iph->saddr)
return -EINVAL;
dev->flags = IFF_BROADCAST;

6
net/ipv4/ipmr.c
View File

@ -749,7 +749,7 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
return 0;
}
if (!MULTICAST(mfc->mfcc_mcastgrp.s_addr))
if (!ipv4_is_multicast(mfc->mfcc_mcastgrp.s_addr))
return -EINVAL;
c=ipmr_cache_alloc();
@ -1461,7 +1461,7 @@ int pim_rcv_v1(struct sk_buff * skb)
b. packet is not a NULL-REGISTER
c. packet is not truncated
*/
if (!MULTICAST(encap->daddr) ||
if (!ipv4_is_multicast(encap->daddr) ||
encap->tot_len == 0 ||
ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
goto drop;
@ -1517,7 +1517,7 @@ static int pim_rcv(struct sk_buff * skb)
/* check if the inner packet is destined to mcast group */
encap = (struct iphdr *)(skb_transport_header(skb) +
sizeof(struct pimreghdr));
if (!MULTICAST(encap->daddr) ||
if (!ipv4_is_multicast(encap->daddr) ||
encap->tot_len == 0 ||
ntohs(encap->tot_len) + sizeof(*pim) > skb->len)
goto drop;

2
net/ipv4/raw.c
View File

@ -530,7 +530,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
if (msg->msg_flags & MSG_DONTROUTE)
tos |= RTO_ONLINK;
if (MULTICAST(daddr)) {
if (ipv4_is_multicast(daddr)) {
if (!ipc.oif)
ipc.oif = inet->mc_index;
if (!saddr)

52
net/ipv4/route.c
View File

@ -1154,7 +1154,8 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw,
return;
if (new_gw == old_gw || !IN_DEV_RX_REDIRECTS(in_dev)
|| MULTICAST(new_gw) || BADCLASS(new_gw) || ZERONET(new_gw))
|| ipv4_is_multicast(new_gw) || ipv4_is_badclass(new_gw)
|| ipv4_is_zeronet(new_gw))
goto reject_redirect;
if (!IN_DEV_SHARED_MEDIA(in_dev)) {
@ -1633,12 +1634,12 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
if (in_dev == NULL)
return -EINVAL;
if (MULTICAST(saddr) || BADCLASS(saddr) || LOOPBACK(saddr) ||
skb->protocol != htons(ETH_P_IP))
if (ipv4_is_multicast(saddr) || ipv4_is_badclass(saddr) ||
ipv4_is_loopback(saddr) || skb->protocol != htons(ETH_P_IP))
goto e_inval;
if (ZERONET(saddr)) {
if (!LOCAL_MCAST(daddr))
if (ipv4_is_zeronet(saddr)) {
if (!ipv4_is_local_multicast(daddr))
goto e_inval;
spec_dst = inet_select_addr(dev, 0, RT_SCOPE_LINK);
} else if (fib_validate_source(saddr, 0, tos, 0,
@ -1680,7 +1681,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
}
#ifdef CONFIG_IP_MROUTE
if (!LOCAL_MCAST(daddr) && IN_DEV_MFORWARD(in_dev))
if (!ipv4_is_local_multicast(daddr) && IN_DEV_MFORWARD(in_dev))
rth->u.dst.input = ip_mr_input;
#endif
RT_CACHE_STAT_INC(in_slow_mc);
@ -1890,7 +1891,8 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
by fib_lookup.
*/
if (MULTICAST(saddr) || BADCLASS(saddr) || LOOPBACK(saddr))
if (ipv4_is_multicast(saddr) || ipv4_is_badclass(saddr) ||
ipv4_is_loopback(saddr))
goto martian_source;
if (daddr == htonl(0xFFFFFFFF) || (saddr == 0 && daddr == 0))
@ -1899,10 +1901,11 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
/* Accept zero addresses only to limited broadcast;
* I even do not know to fix it or not. Waiting for complains :-)
*/
if (ZERONET(saddr))
if (ipv4_is_zeronet(saddr))
goto martian_source;
if (BADCLASS(daddr) || ZERONET(daddr) || LOOPBACK(daddr))
if (ipv4_is_badclass(daddr) || ipv4_is_zeronet(daddr) ||
ipv4_is_loopback(daddr))
goto martian_destination;
/*
@ -1949,7 +1952,7 @@ out: return err;
if (skb->protocol != htons(ETH_P_IP))
goto e_inval;
if (ZERONET(saddr))
if (ipv4_is_zeronet(saddr))
spec_dst = inet_select_addr(dev, 0, RT_SCOPE_LINK);
else {
err = fib_validate_source(saddr, 0, tos, 0, dev, &spec_dst,
@ -2079,7 +2082,7 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
Note, that multicast routers are not affected, because
route cache entry is created eventually.
*/
if (MULTICAST(daddr)) {
if (ipv4_is_multicast(daddr)) {
struct in_device *in_dev;
rcu_read_lock();
@ -2088,7 +2091,8 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
ip_hdr(skb)->protocol);
if (our
#ifdef CONFIG_IP_MROUTE
|| (!LOCAL_MCAST(daddr) && IN_DEV_MFORWARD(in_dev))
|| (!ipv4_is_local_multicast(daddr) &&
IN_DEV_MFORWARD(in_dev))
#endif
) {
rcu_read_unlock();
@ -2114,14 +2118,14 @@ static inline int __mkroute_output(struct rtable **result,
u32 tos = RT_FL_TOS(oldflp);
int err = 0;
if (LOOPBACK(fl->fl4_src) && !(dev_out->flags&IFF_LOOPBACK))
if (ipv4_is_loopback(fl->fl4_src) && !(dev_out->flags&IFF_LOOPBACK))
return -EINVAL;
if (fl->fl4_dst == htonl(0xFFFFFFFF))
res->type = RTN_BROADCAST;
else if (MULTICAST(fl->fl4_dst))
else if (ipv4_is_multicast(fl->fl4_dst))
res->type = RTN_MULTICAST;
else if (BADCLASS(fl->fl4_dst) || ZERONET(fl->fl4_dst))
else if (ipv4_is_badclass(fl->fl4_dst) || ipv4_is_zeronet(fl->fl4_dst))
return -EINVAL;
if (dev_out->flags & IFF_LOOPBACK)
@ -2201,7 +2205,7 @@ static inline int __mkroute_output(struct rtable **result,
#ifdef CONFIG_IP_MROUTE
if (res->type == RTN_MULTICAST) {
if (IN_DEV_MFORWARD(in_dev) &&
!LOCAL_MCAST(oldflp->fl4_dst)) {
!ipv4_is_local_multicast(oldflp->fl4_dst)) {
rth->u.dst.input = ip_mr_input;
rth->u.dst.output = ip_mc_output;
}
@ -2271,9 +2275,9 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
if (oldflp->fl4_src) {
err = -EINVAL;
if (MULTICAST(oldflp->fl4_src) ||
BADCLASS(oldflp->fl4_src) ||
ZERONET(oldflp->fl4_src))
if (ipv4_is_multicast(oldflp->fl4_src) ||
ipv4_is_badclass(oldflp->fl4_src) ||
ipv4_is_zeronet(oldflp->fl4_src))
goto out;
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
@ -2290,7 +2294,8 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
*/
if (oldflp->oif == 0
&& (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
&& (ipv4_is_multicast(oldflp->fl4_dst) ||
oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* Special hack: user can direct multicasts
and limited broadcast via necessary interface
without fiddling with IP_MULTICAST_IF or IP_PKTINFO.
@ -2327,14 +2332,15 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
goto out; /* Wrong error code */
}
if (LOCAL_MCAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF)) {
if (ipv4_is_local_multicast(oldflp->fl4_dst) ||
oldflp->fl4_dst == htonl(0xFFFFFFFF)) {
if (!fl.fl4_src)
fl.fl4_src = inet_select_addr(dev_out, 0,
RT_SCOPE_LINK);
goto make_route;
}
if (!fl.fl4_src) {
if (MULTICAST(oldflp->fl4_dst))
if (ipv4_is_multicast(oldflp->fl4_dst))
fl.fl4_src = inet_select_addr(dev_out, 0,
fl.fl4_scope);
else if (!oldflp->fl4_dst)
@ -2618,7 +2624,7 @@ static int rt_fill_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
#ifdef CONFIG_IP_MROUTE
__be32 dst = rt->rt_dst;
if (MULTICAST(dst) && !LOCAL_MCAST(dst) &&
if (ipv4_is_multicast(dst) && !ipv4_is_local_multicast(dst) &&
IPV4_DEVCONF_ALL(&init_net, MC_FORWARDING)) {
int err = ipmr_get_route(skb, r, nowait);
if (err <= 0) {

2
net/ipv4/udp.c
View File

@ -626,7 +626,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
connected = 0;
}
if (MULTICAST(daddr)) {
if (ipv4_is_multicast(daddr)) {
if (!ipc.oif)
ipc.oif = inet->mc_index;
if (!saddr)