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Date: Thu, 05 Apr 2007 23:21:05 -0400
From: Brian Haley <brian.haley@...com>
To: David Miller <davem@...emloft.net>,
YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Cc: netdev@...r.kernel.org, dccp@...r.kernel.org,
lksctp-developers@...ts.sourceforge.net
Subject: [PATCH 1/4] [IPv6] Add link and site-local scope inline
Add link and site-local scope inline to avoid calls to ipv6_addr_type().
Signed-off-by: Brian Haley <brian.haley@...com>
---
include/net/ipv6.h | 10 ++++++++++
net/dccp/ipv6.c | 2 +-
net/ipv6/addrconf.c | 6 +++---
net/ipv6/af_inet6.c | 2 +-
net/ipv6/datagram.c | 11 ++++-------
net/ipv6/inet6_connection_sock.c | 2 +-
net/ipv6/ip6_output.c | 2 +-
net/ipv6/mcast.c | 8 +++-----
net/ipv6/ndisc.c | 8 ++++----
net/ipv6/raw.c | 4 ++--
net/ipv6/tcp_ipv6.c | 2 +-
net/ipv6/udp.c | 4 ++--
net/sctp/ipv6.c | 16 +++++++---------
13 files changed, 40 insertions(+), 37 deletions(-)
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 00328b7..d473789 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -429,6 +429,16 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
}
+static inline int ipv6_addr_scope_linklocal(const struct in6_addr *a)
+{
+ return ((a->s6_addr32[0] & htonl(0xFFC00000)) == htonl(0xFE800000));
+}
+
+static inline int ipv6_addr_scope_sitelocal(const struct in6_addr *a)
+{
+ return ((a->s6_addr32[0] & htonl(0xFFC00000)) == htonl(0xFEC00000));
+}
+
/*
* Prototypes exported by ipv6
*/
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 64eac25..14a0f12 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -476,7 +476,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
/* So that link locals have meaning */
if (!sk->sk_bound_dev_if &&
- ipv6_addr_type(&ireq6->rmt_addr) & IPV6_ADDR_LINKLOCAL)
+ ipv6_addr_scope_linklocal(&ireq6->rmt_addr))
ireq6->iif = inet6_iif(skb);
/*
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 47d3adf..2d4fe24 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2634,7 +2634,7 @@ static void addrconf_dad_completed(struct inet6_ifaddr *ifp)
if (ifp->idev->cnf.forwarding == 0 &&
ifp->idev->cnf.rtr_solicits > 0 &&
(dev->flags&IFF_LOOPBACK) == 0 &&
- (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {
+ ipv6_addr_scope_linklocal(&ifp->addr)) {
struct in6_addr all_routers;
ipv6_addr_all_routers(&all_routers);
@@ -3155,7 +3155,7 @@ static int inet6_fill_ifmcaddr(struct sk_buff *skb, struct ifmcaddr6 *ifmca,
u8 scope = RT_SCOPE_UNIVERSE;
int ifindex = ifmca->idev->dev->ifindex;
- if (ipv6_addr_scope(&ifmca->mca_addr) & IFA_SITE)
+ if (ipv6_addr_scope_sitelocal(&ifmca->mca_addr))
scope = RT_SCOPE_SITE;
nlh = nlmsg_put(skb, pid, seq, event, sizeof(struct ifaddrmsg), flags);
@@ -3180,7 +3180,7 @@ static int inet6_fill_ifacaddr(struct sk_buff *skb, struct ifacaddr6 *ifaca,
u8 scope = RT_SCOPE_UNIVERSE;
int ifindex = ifaca->aca_idev->dev->ifindex;
- if (ipv6_addr_scope(&ifaca->aca_addr) & IFA_SITE)
+ if (ipv6_addr_scope_sitelocal(&ifaca->aca_addr))
scope = RT_SCOPE_SITE;
nlh = nlmsg_put(skb, pid, seq, event, sizeof(struct ifaddrmsg), flags);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index df31cdd..24618cf 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -431,7 +431,7 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
sin->sin6_port = inet->sport;
}
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin->sin6_addr))
sin->sin6_scope_id = sk->sk_bound_dev_if;
*uaddr_len = sizeof(*sin);
return(0);
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 4a355fe..a8612b2 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -323,7 +323,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
sin->sin6_flowinfo =
(*(__be32 *)(nh + serr->addr_offset - 24) &
IPV6_FLOWINFO_MASK);
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin->sin6_addr))
sin->sin6_scope_id = IP6CB(skb)->iif;
} else {
ipv6_addr_set(&sin->sin6_addr, 0, 0,
@@ -343,7 +343,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
ipv6_addr_copy(&sin->sin6_addr, &ipv6_hdr(skb)->saddr);
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin->sin6_addr))
sin->sin6_scope_id = IP6CB(skb)->iif;
} else {
struct inet_sock *inet = inet_sk(sk);
@@ -504,7 +504,6 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
int err = 0;
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
- int addr_type;
struct net_device *dev = NULL;
if (!CMSG_OK(msg, cmsg)) {
@@ -531,12 +530,10 @@ int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
fl->oif = src_info->ipi6_ifindex;
}
- addr_type = ipv6_addr_type(&src_info->ipi6_addr);
-
- if (addr_type == IPV6_ADDR_ANY)
+ if (ipv6_addr_any(&src_info->ipi6_addr))
break;
- if (addr_type & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&src_info->ipi6_addr)) {
if (!src_info->ipi6_ifindex)
return -EINVAL;
else {
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 116f94a..7cefe18 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -133,7 +133,7 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
if (sk->sk_bound_dev_if &&
- ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ ipv6_addr_scope_linklocal(&sin6->sin6_addr))
sin6->sin6_scope_id = sk->sk_bound_dev_if;
}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 78317a4..f6aa338 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -351,7 +351,7 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
* address, so signal the sender and discard the packet. This
* behavior is clarified by the MIPv6 specification.
*/
- if (ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&hdr->daddr)) {
dst_link_failure(skb);
return -1;
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 6c27589..d2d31a2 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1171,7 +1171,7 @@ int igmp6_event_query(struct sk_buff *skb)
len -= skb_network_header_len(skb);
/* Drop queries with not link local source */
- if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL))
+ if (!ipv6_addr_scope_linklocal(&ipv6_hdr(skb)->saddr))
return -EINVAL;
idev = in6_dev_get(skb->dev);
@@ -1286,7 +1286,6 @@ int igmp6_event_report(struct sk_buff *skb)
struct in6_addr *addrp;
struct inet6_dev *idev;
struct icmp6hdr *hdr;
- int addr_type;
/* Our own report looped back. Ignore it. */
if (skb->pkt_type == PACKET_LOOPBACK)
@@ -1303,9 +1302,8 @@ int igmp6_event_report(struct sk_buff *skb)
hdr = icmp6_hdr(skb);
/* Drop reports with not link local source */
- addr_type = ipv6_addr_type(&ipv6_hdr(skb)->saddr);
- if (addr_type != IPV6_ADDR_ANY &&
- !(addr_type&IPV6_ADDR_LINKLOCAL))
+ if (!ipv6_addr_any(&ipv6_hdr(skb)->saddr) &&
+ !ipv6_addr_scope_linklocal(&ipv6_hdr(skb)->saddr))
return -EINVAL;
addrp = (struct in6_addr *) (hdr + 1);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index b1cf708..b500011 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1115,7 +1115,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
optlen = (skb->tail - skb->transport_header) - sizeof(struct ra_msg);
- if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!ipv6_addr_scope_linklocal(&ipv6_hdr(skb)->saddr)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 RA: source address is not link-local.\n");
return;
@@ -1356,7 +1356,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
int optlen;
u8 *lladdr = NULL;
- if (!(ipv6_addr_type(&ipv6_hdr(skb)->saddr) & IPV6_ADDR_LINKLOCAL)) {
+ if (!ipv6_addr_scope_linklocal(&ipv6_hdr(skb)->saddr)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: source address is not link-local.\n");
return;
@@ -1383,7 +1383,7 @@ static void ndisc_redirect_rcv(struct sk_buff *skb)
if (ipv6_addr_equal(dest, target)) {
on_link = 1;
- } else if (!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
+ } else if (!ipv6_addr_scope_linklocal(target)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: target address is not link-local.\n");
return;
@@ -1459,7 +1459,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
}
if (!ipv6_addr_equal(&ipv6_hdr(skb)->daddr, target) &&
- !(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) {
+ !ipv6_addr_scope_linklocal(target)) {
ND_PRINTK2(KERN_WARNING
"ICMPv6 Redirect: target address is not link-local.\n");
return;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 9592930..771fa0e 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -442,7 +442,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
- if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin6->sin6_addr))
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
@@ -750,7 +750,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
if (addr_len >= sizeof(struct sockaddr_in6) &&
sin6->sin6_scope_id &&
- ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL)
+ ipv6_addr_scope_linklocal(daddr))
fl.oif = sin6->sin6_scope_id;
} else {
if (sk->sk_state != TCP_ESTABLISHED)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index f0f7dc6..537978c 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1287,7 +1287,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
/* So that link locals have meaning */
if (!sk->sk_bound_dev_if &&
- ipv6_addr_type(&treq->rmt_addr) & IPV6_ADDR_LINKLOCAL)
+ ipv6_addr_scope_linklocal(&treq->rmt_addr))
treq->iif = inet6_iif(skb);
if (isn == 0)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index bd2856f..c0b5fe3 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -182,7 +182,7 @@ try_again:
else {
ipv6_addr_copy(&sin6->sin6_addr,
&ipv6_hdr(skb)->saddr);
- if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin6->sin6_addr))
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
@@ -680,7 +680,7 @@ do_udp_sendmsg:
if (addr_len >= sizeof(struct sockaddr_in6) &&
sin6->sin6_scope_id &&
- ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL)
+ ipv6_addr_scope_linklocal(daddr))
fl.oif = sin6->sin6_scope_id;
} else {
if (sk->sk_state != TCP_ESTABLISHED)
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 5b0cdda..c1f4a8f 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -199,7 +199,7 @@ static int sctp_v6_xmit(struct sk_buff *skb, struct sctp_transport *transport,
fl.fl6_flowlabel = np->flow_label;
IP6_ECN_flow_xmit(sk, fl.fl6_flowlabel);
- if (ipv6_addr_type(&fl.fl6_src) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&fl.fl6_src))
fl.oif = transport->saddr.v6.sin6_scope_id;
else
fl.oif = sk->sk_bound_dev_if;
@@ -231,7 +231,7 @@ static struct dst_entry *sctp_v6_get_dst(struct sctp_association *asoc,
memset(&fl, 0, sizeof(fl));
ipv6_addr_copy(&fl.fl6_dst, &daddr->v6.sin6_addr);
- if (ipv6_addr_type(&daddr->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&daddr->v6.sin6_addr))
fl.oif = daddr->v6.sin6_scope_id;
@@ -500,7 +500,7 @@ static int sctp_v6_cmp_addr(const union sctp_addr *addr1,
if (!ipv6_addr_equal(&addr1->v6.sin6_addr, &addr2->v6.sin6_addr))
return 0;
/* If this is a linklocal address, compare the scope_id. */
- if (ipv6_addr_type(&addr1->v6.sin6_addr) & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&addr1->v6.sin6_addr)) {
if (addr1->v6.sin6_scope_id && addr2->v6.sin6_scope_id &&
(addr1->v6.sin6_scope_id != addr2->v6.sin6_scope_id)) {
return 0;
@@ -749,7 +749,7 @@ static void sctp_inet6_event_msgname(struct sctp_ulpevent *event,
sin6from = &asoc->peer.primary_addr.v6;
ipv6_addr_copy(&sin6->sin6_addr, &sin6from->sin6_addr);
- if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
+ if (ipv6_addr_scope_linklocal(&sin6->sin6_addr))
sin6->sin6_scope_id = sin6from->sin6_scope_id;
}
}
@@ -777,7 +777,7 @@ static void sctp_inet6_skb_msgname(struct sk_buff *skb, char *msgname,
/* Otherwise, just copy the v6 address. */
ipv6_addr_copy(&sin6->sin6_addr, &ipv6_hdr(skb)->saddr);
- if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&sin6->sin6_addr)) {
struct sctp_ulpevent *ev = sctp_skb2event(skb);
sin6->sin6_scope_id = ev->iif;
}
@@ -835,10 +835,9 @@ static int sctp_inet6_bind_verify(struct sctp_sock *opt, union sctp_addr *addr)
if (addr->sa.sa_family != AF_INET6)
af = sctp_get_af_specific(addr->sa.sa_family);
else {
- int type = ipv6_addr_type(&addr->v6.sin6_addr);
struct net_device *dev;
- if (type & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&addr->v6.sin6_addr)) {
if (!addr->v6.sin6_scope_id)
return 0;
dev = dev_get_by_index(addr->v6.sin6_scope_id);
@@ -862,10 +861,9 @@ static int sctp_inet6_send_verify(struct sctp_sock *opt, union sctp_addr *addr)
if (addr->sa.sa_family != AF_INET6)
af = sctp_get_af_specific(addr->sa.sa_family);
else {
- int type = ipv6_addr_type(&addr->v6.sin6_addr);
struct net_device *dev;
- if (type & IPV6_ADDR_LINKLOCAL) {
+ if (ipv6_addr_scope_linklocal(&addr->v6.sin6_addr)) {
if (!addr->v6.sin6_scope_id)
return 0;
dev = dev_get_by_index(addr->v6.sin6_scope_id);
--
1.5.0.3
-
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