* [PATCH net-next v3 2/4] ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id
@ 2013-03-07 21:05 Hannes Frederic Sowa
2013-03-08 2:21 ` YOSHIFUJI Hideaki
0 siblings, 1 reply; 2+ messages in thread
From: Hannes Frederic Sowa @ 2013-03-07 21:05 UTC (permalink / raw)
To: netdev; +Cc: yoshfuji
This patch requires multicast interface-scoped addresses to supply a
sin6_scope_id. Because the sin6_scope_id is now also correctly used
in case of interface-scoped multicast traffic this enables one to use
interface scoped addresses over interfaces which are not targeted by the
default multicast route (the route has to be put there manually, though).
getsockname() and getpeername() now return the correct sin6_scope_id in
case of interface-local mc addresses.
v2:
a) rebased ontop of patch 1/4 (now uses ipv6_addr_props)
v3:
a) reverted changes for ipv6_addr_props
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
---
net/ipv6/af_inet6.c | 6 +++---
net/ipv6/datagram.c | 16 +++++++++-------
net/ipv6/icmp.c | 2 +-
net/ipv6/inet6_connection_sock.c | 6 ++----
net/ipv6/raw.c | 9 ++++-----
net/ipv6/udp.c | 13 +++++++------
6 files changed, 26 insertions(+), 26 deletions(-)
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 6b793bf..f56277f 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -323,7 +323,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
struct net_device *dev = NULL;
rcu_read_lock();
- if (addr_type & IPV6_ADDR_LINKLOCAL) {
+ if (__ipv6_addr_needs_scope_id(addr_type)) {
if (addr_len >= sizeof(struct sockaddr_in6) &&
addr->sin6_scope_id) {
/* Override any existing binding, if another one
@@ -471,8 +471,8 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
sin->sin6_port = inet->inet_sport;
}
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
- sin->sin6_scope_id = sk->sk_bound_dev_if;
+ sin->sin6_scope_id = ipv6_iface_scope_id(&sin->sin6_addr,
+ sk->sk_bound_dev_if);
*uaddr_len = sizeof(*sin);
return 0;
}
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index f5a5478..b55e70a 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -124,7 +124,7 @@ ipv4_connected:
goto out;
}
- if (addr_type&IPV6_ADDR_LINKLOCAL) {
+ if (__ipv6_addr_needs_scope_id(addr_type)) {
if (addr_len >= sizeof(struct sockaddr_in6) &&
usin->sin6_scope_id) {
if (sk->sk_bound_dev_if &&
@@ -355,18 +355,19 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
sin->sin6_port = serr->port;
- sin->sin6_scope_id = 0;
if (skb->protocol == htons(ETH_P_IPV6)) {
const struct ipv6hdr *ip6h = container_of((struct in6_addr *)(nh + serr->addr_offset),
struct ipv6hdr, daddr);
sin->sin6_addr = ip6h->daddr;
if (np->sndflow)
sin->sin6_flowinfo = ip6_flowinfo(ip6h);
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
- sin->sin6_scope_id = IP6CB(skb)->iif;
+ sin->sin6_scope_id =
+ ipv6_iface_scope_id(&sin->sin6_addr,
+ IP6CB(skb)->iif);
} else {
ipv6_addr_set_v4mapped(*(__be32 *)(nh + serr->addr_offset),
&sin->sin6_addr);
+ sin->sin6_scope_id = 0;
}
}
@@ -376,18 +377,19 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
sin->sin6_family = AF_INET6;
sin->sin6_flowinfo = 0;
- sin->sin6_scope_id = 0;
if (skb->protocol == htons(ETH_P_IPV6)) {
sin->sin6_addr = ipv6_hdr(skb)->saddr;
if (np->rxopt.all)
ip6_datagram_recv_ctl(sk, msg, skb);
- if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
- sin->sin6_scope_id = IP6CB(skb)->iif;
+ sin->sin6_scope_id =
+ ipv6_iface_scope_id(&sin->sin6_addr,
+ IP6CB(skb)->iif);
} else {
struct inet_sock *inet = inet_sk(sk);
ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
&sin->sin6_addr);
+ sin->sin6_scope_id = 0;
if (inet->cmsg_flags)
ip_cmsg_recv(msg, skb);
}
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index fff5bdd..71b900c 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -434,7 +434,7 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
* Source addr check
*/
- if (addr_type & IPV6_ADDR_LINKLOCAL)
+ if (__ipv6_addr_needs_scope_id(addr_type))
iif = skb->dev->ifindex;
/*
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 5f25510..e4311cb 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -173,10 +173,8 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
sin6->sin6_port = inet_sk(sk)->inet_dport;
/* We do not store received flowlabel for TCP */
sin6->sin6_flowinfo = 0;
- sin6->sin6_scope_id = 0;
- if (sk->sk_bound_dev_if &&
- ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
- sin6->sin6_scope_id = sk->sk_bound_dev_if;
+ sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
+ sk->sk_bound_dev_if);
}
EXPORT_SYMBOL_GPL(inet6_csk_addr2sockaddr);
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 330b5e7..eedff8c 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -263,7 +263,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
if (addr_type != IPV6_ADDR_ANY) {
struct net_device *dev = NULL;
- if (addr_type & IPV6_ADDR_LINKLOCAL) {
+ if (__ipv6_addr_needs_scope_id(addr_type)) {
if (addr_len >= sizeof(struct sockaddr_in6) &&
addr->sin6_scope_id) {
/* Override any existing binding, if another
@@ -498,9 +498,8 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
sin6->sin6_port = 0;
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)
- sin6->sin6_scope_id = IP6CB(skb)->iif;
+ sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
+ IP6CB(skb)->iif);
}
sock_recv_ts_and_drops(msg, sk, skb);
@@ -802,7 +801,7 @@ 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_needs_scope_id(__ipv6_addr_type(daddr)))
fl6.flowi6_oif = sin6->sin6_scope_id;
} else {
if (sk->sk_state != TCP_ESTABLISHED)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 599e1ba6..3ed57ec 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -450,15 +450,16 @@ try_again:
sin6->sin6_family = AF_INET6;
sin6->sin6_port = udp_hdr(skb)->source;
sin6->sin6_flowinfo = 0;
- sin6->sin6_scope_id = 0;
- if (is_udp4)
+ if (is_udp4) {
ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
&sin6->sin6_addr);
- else {
+ sin6->sin6_scope_id = 0;
+ } else {
sin6->sin6_addr = ipv6_hdr(skb)->saddr;
- if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
- sin6->sin6_scope_id = IP6CB(skb)->iif;
+ sin6->sin6_scope_id =
+ ipv6_iface_scope_id(&sin6->sin6_addr,
+ IP6CB(skb)->iif);
}
}
@@ -1118,7 +1119,7 @@ do_udp_sendmsg:
if (addr_len >= sizeof(struct sockaddr_in6) &&
sin6->sin6_scope_id &&
- ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL)
+ __ipv6_addr_needs_scope_id(__ipv6_addr_type(daddr)))
fl6.flowi6_oif = sin6->sin6_scope_id;
} else {
if (sk->sk_state != TCP_ESTABLISHED)
--
1.8.1.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next v3 2/4] ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id
2013-03-07 21:05 [PATCH net-next v3 2/4] ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id Hannes Frederic Sowa
@ 2013-03-08 2:21 ` YOSHIFUJI Hideaki
0 siblings, 0 replies; 2+ messages in thread
From: YOSHIFUJI Hideaki @ 2013-03-08 2:21 UTC (permalink / raw)
To: netdev, David Miller; +Cc: YOSHIFUJI Hideaki
Hannes Frederic Sowa wrote:
> This patch requires multicast interface-scoped addresses to supply a
> sin6_scope_id. Because the sin6_scope_id is now also correctly used
> in case of interface-scoped multicast traffic this enables one to use
> interface scoped addresses over interfaces which are not targeted by the
> default multicast route (the route has to be put there manually, though).
>
> getsockname() and getpeername() now return the correct sin6_scope_id in
> case of interface-local mc addresses.
>
> v2:
> a) rebased ontop of patch 1/4 (now uses ipv6_addr_props)
>
> v3:
> a) reverted changes for ipv6_addr_props
>
> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
> ---
> net/ipv6/af_inet6.c | 6 +++---
> net/ipv6/datagram.c | 16 +++++++++-------
> net/ipv6/icmp.c | 2 +-
> net/ipv6/inet6_connection_sock.c | 6 ++----
> net/ipv6/raw.c | 9 ++++-----
> net/ipv6/udp.c | 13 +++++++------
> 6 files changed, 26 insertions(+), 26 deletions(-)
>
> diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
> index 6b793bf..f56277f 100644
> --- a/net/ipv6/af_inet6.c
> +++ b/net/ipv6/af_inet6.c
> @@ -323,7 +323,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
> struct net_device *dev = NULL;
>
> rcu_read_lock();
> - if (addr_type & IPV6_ADDR_LINKLOCAL) {
> + if (__ipv6_addr_needs_scope_id(addr_type)) {
> if (addr_len >= sizeof(struct sockaddr_in6) &&
> addr->sin6_scope_id) {
> /* Override any existing binding, if another one
> @@ -471,8 +471,8 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
>
> sin->sin6_port = inet->inet_sport;
> }
> - if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
> - sin->sin6_scope_id = sk->sk_bound_dev_if;
> + sin->sin6_scope_id = ipv6_iface_scope_id(&sin->sin6_addr,
> + sk->sk_bound_dev_if);
> *uaddr_len = sizeof(*sin);
> return 0;
> }
> diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
> index f5a5478..b55e70a 100644
> --- a/net/ipv6/datagram.c
> +++ b/net/ipv6/datagram.c
> @@ -124,7 +124,7 @@ ipv4_connected:
> goto out;
> }
>
> - if (addr_type&IPV6_ADDR_LINKLOCAL) {
> + if (__ipv6_addr_needs_scope_id(addr_type)) {
> if (addr_len >= sizeof(struct sockaddr_in6) &&
> usin->sin6_scope_id) {
> if (sk->sk_bound_dev_if &&
> @@ -355,18 +355,19 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
> sin->sin6_family = AF_INET6;
> sin->sin6_flowinfo = 0;
> sin->sin6_port = serr->port;
> - sin->sin6_scope_id = 0;
> if (skb->protocol == htons(ETH_P_IPV6)) {
> const struct ipv6hdr *ip6h = container_of((struct in6_addr *)(nh + serr->addr_offset),
> struct ipv6hdr, daddr);
> sin->sin6_addr = ip6h->daddr;
> if (np->sndflow)
> sin->sin6_flowinfo = ip6_flowinfo(ip6h);
> - if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
> - sin->sin6_scope_id = IP6CB(skb)->iif;
> + sin->sin6_scope_id =
> + ipv6_iface_scope_id(&sin->sin6_addr,
> + IP6CB(skb)->iif);
> } else {
> ipv6_addr_set_v4mapped(*(__be32 *)(nh + serr->addr_offset),
> &sin->sin6_addr);
> + sin->sin6_scope_id = 0;
> }
> }
>
> @@ -376,18 +377,19 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
> if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
> sin->sin6_family = AF_INET6;
> sin->sin6_flowinfo = 0;
> - sin->sin6_scope_id = 0;
> if (skb->protocol == htons(ETH_P_IPV6)) {
> sin->sin6_addr = ipv6_hdr(skb)->saddr;
> if (np->rxopt.all)
> ip6_datagram_recv_ctl(sk, msg, skb);
> - if (ipv6_addr_type(&sin->sin6_addr) & IPV6_ADDR_LINKLOCAL)
> - sin->sin6_scope_id = IP6CB(skb)->iif;
> + sin->sin6_scope_id =
> + ipv6_iface_scope_id(&sin->sin6_addr,
> + IP6CB(skb)->iif);
> } else {
> struct inet_sock *inet = inet_sk(sk);
>
> ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
> &sin->sin6_addr);
> + sin->sin6_scope_id = 0;
> if (inet->cmsg_flags)
> ip_cmsg_recv(msg, skb);
> }
> diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
> index fff5bdd..71b900c 100644
> --- a/net/ipv6/icmp.c
> +++ b/net/ipv6/icmp.c
> @@ -434,7 +434,7 @@ void icmpv6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info)
> * Source addr check
> */
>
> - if (addr_type & IPV6_ADDR_LINKLOCAL)
> + if (__ipv6_addr_needs_scope_id(addr_type))
> iif = skb->dev->ifindex;
>
> /*
> diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
> index 5f25510..e4311cb 100644
> --- a/net/ipv6/inet6_connection_sock.c
> +++ b/net/ipv6/inet6_connection_sock.c
> @@ -173,10 +173,8 @@ void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
> sin6->sin6_port = inet_sk(sk)->inet_dport;
> /* We do not store received flowlabel for TCP */
> sin6->sin6_flowinfo = 0;
> - sin6->sin6_scope_id = 0;
> - if (sk->sk_bound_dev_if &&
> - ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
> - sin6->sin6_scope_id = sk->sk_bound_dev_if;
> + sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
> + sk->sk_bound_dev_if);
> }
>
> EXPORT_SYMBOL_GPL(inet6_csk_addr2sockaddr);
> diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> index 330b5e7..eedff8c 100644
> --- a/net/ipv6/raw.c
> +++ b/net/ipv6/raw.c
> @@ -263,7 +263,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
> if (addr_type != IPV6_ADDR_ANY) {
> struct net_device *dev = NULL;
>
> - if (addr_type & IPV6_ADDR_LINKLOCAL) {
> + if (__ipv6_addr_needs_scope_id(addr_type)) {
> if (addr_len >= sizeof(struct sockaddr_in6) &&
> addr->sin6_scope_id) {
> /* Override any existing binding, if another
> @@ -498,9 +498,8 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
> sin6->sin6_port = 0;
> 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)
> - sin6->sin6_scope_id = IP6CB(skb)->iif;
> + sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
> + IP6CB(skb)->iif);
> }
>
> sock_recv_ts_and_drops(msg, sk, skb);
> @@ -802,7 +801,7 @@ 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_needs_scope_id(__ipv6_addr_type(daddr)))
> fl6.flowi6_oif = sin6->sin6_scope_id;
> } else {
> if (sk->sk_state != TCP_ESTABLISHED)
> diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
> index 599e1ba6..3ed57ec 100644
> --- a/net/ipv6/udp.c
> +++ b/net/ipv6/udp.c
> @@ -450,15 +450,16 @@ try_again:
> sin6->sin6_family = AF_INET6;
> sin6->sin6_port = udp_hdr(skb)->source;
> sin6->sin6_flowinfo = 0;
> - sin6->sin6_scope_id = 0;
>
> - if (is_udp4)
> + if (is_udp4) {
> ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
> &sin6->sin6_addr);
> - else {
> + sin6->sin6_scope_id = 0;
> + } else {
> sin6->sin6_addr = ipv6_hdr(skb)->saddr;
> - if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
> - sin6->sin6_scope_id = IP6CB(skb)->iif;
> + sin6->sin6_scope_id =
> + ipv6_iface_scope_id(&sin6->sin6_addr,
> + IP6CB(skb)->iif);
> }
>
> }
> @@ -1118,7 +1119,7 @@ do_udp_sendmsg:
>
> if (addr_len >= sizeof(struct sockaddr_in6) &&
> sin6->sin6_scope_id &&
> - ipv6_addr_type(daddr)&IPV6_ADDR_LINKLOCAL)
> + __ipv6_addr_needs_scope_id(__ipv6_addr_type(daddr)))
> fl6.flowi6_oif = sin6->sin6_scope_id;
> } else {
> if (sk->sk_state != TCP_ESTABLISHED)
>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2013-03-08 2:21 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-03-07 21:05 [PATCH net-next v3 2/4] ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id Hannes Frederic Sowa
2013-03-08 2:21 ` YOSHIFUJI Hideaki
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).