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authorPetr Machata <petrm@mellanox.com>2018-02-27 14:53:38 +0100
committerDavid S. Miller <davem@davemloft.net>2018-02-27 14:46:26 -0500
commitb0066da52ea53bae2b4ceed3f47d488df27dab66 (patch)
treeddde1cf8ff06ac2b1379f00f1ae092df5f179b63 /net
parentnet: GRE: Add is_gretap_dev, is_ip6gretap_dev (diff)
downloadlinux-dev-b0066da52ea53bae2b4ceed3f47d488df27dab66.tar.xz
linux-dev-b0066da52ea53bae2b4ceed3f47d488df27dab66.zip
ip_tunnel: Rename & publish init_tunnel_flow
Initializing struct flowi4 is useful for drivers that need to emulate routing decisions made by a tunnel interface. Publish the function (appropriately renamed) so that the drivers in question don't need to cut'n'paste it around. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/ip_tunnel.c40
1 files changed, 12 insertions, 28 deletions
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index d786a8441bce..b2117d89bc83 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -290,22 +290,6 @@ failed:
return ERR_PTR(err);
}
-static inline void init_tunnel_flow(struct flowi4 *fl4,
- int proto,
- __be32 daddr, __be32 saddr,
- __be32 key, __u8 tos, int oif,
- __u32 mark)
-{
- memset(fl4, 0, sizeof(*fl4));
- fl4->flowi4_oif = oif;
- fl4->daddr = daddr;
- fl4->saddr = saddr;
- fl4->flowi4_tos = tos;
- fl4->flowi4_proto = proto;
- fl4->fl4_gre_key = key;
- fl4->flowi4_mark = mark;
-}
-
static int ip_tunnel_bind_dev(struct net_device *dev)
{
struct net_device *tdev = NULL;
@@ -322,10 +306,10 @@ static int ip_tunnel_bind_dev(struct net_device *dev)
struct flowi4 fl4;
struct rtable *rt;
- init_tunnel_flow(&fl4, iph->protocol, iph->daddr,
- iph->saddr, tunnel->parms.o_key,
- RT_TOS(iph->tos), tunnel->parms.link,
- tunnel->fwmark);
+ ip_tunnel_init_flow(&fl4, iph->protocol, iph->daddr,
+ iph->saddr, tunnel->parms.o_key,
+ RT_TOS(iph->tos), tunnel->parms.link,
+ tunnel->fwmark);
rt = ip_route_output_key(tunnel->net, &fl4);
if (!IS_ERR(rt)) {
@@ -581,8 +565,8 @@ void ip_md_tunnel_xmit(struct sk_buff *skb, struct net_device *dev, u8 proto)
else if (skb->protocol == htons(ETH_P_IPV6))
tos = ipv6_get_dsfield((const struct ipv6hdr *)inner_iph);
}
- init_tunnel_flow(&fl4, proto, key->u.ipv4.dst, key->u.ipv4.src, 0,
- RT_TOS(tos), tunnel->parms.link, tunnel->fwmark);
+ ip_tunnel_init_flow(&fl4, proto, key->u.ipv4.dst, key->u.ipv4.src, 0,
+ RT_TOS(tos), tunnel->parms.link, tunnel->fwmark);
if (tunnel->encap.type != TUNNEL_ENCAP_NONE)
goto tx_error;
rt = ip_route_output_key(tunnel->net, &fl4);
@@ -711,14 +695,14 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
}
if (tunnel->fwmark) {
- init_tunnel_flow(&fl4, protocol, dst, tnl_params->saddr,
- tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link,
- tunnel->fwmark);
+ ip_tunnel_init_flow(&fl4, protocol, dst, tnl_params->saddr,
+ tunnel->parms.o_key, RT_TOS(tos),
+ tunnel->parms.link, tunnel->fwmark);
}
else {
- init_tunnel_flow(&fl4, protocol, dst, tnl_params->saddr,
- tunnel->parms.o_key, RT_TOS(tos), tunnel->parms.link,
- skb->mark);
+ ip_tunnel_init_flow(&fl4, protocol, dst, tnl_params->saddr,
+ tunnel->parms.o_key, RT_TOS(tos),
+ tunnel->parms.link, skb->mark);
}
if (ip_tunnel_encap(skb, tunnel, &protocol, &fl4) < 0)