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authorLiu Jian <liujian56@huawei.com>2022-09-29 16:52:02 +0300
committerDavid S. Miller <davem@davemloft.net>2022-10-03 09:59:06 +0300
commit537dd2d9fb9f4aa7939fb4fcf552ebe4f497bd7e (patch)
treec346d5ef2525431db618326bf51cd3355c1a9fb5 /net/ipv6
parent42e8e6d906dabb58a0e0ea53443b0e0a0821f1d5 (diff)
downloadlinux-537dd2d9fb9f4aa7939fb4fcf552ebe4f497bd7e.tar.xz
net: Add helper function to parse netlink msg of ip_tunnel_encap
Add ip_tunnel_netlink_encap_parms to parse netlink msg of ip_tunnel_encap. Reduces duplicate code, no actual functional changes. Signed-off-by: Liu Jian <liujian56@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_tunnel.c37
-rw-r--r--net/ipv6/sit.c38
2 files changed, 4 insertions, 71 deletions
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 9e97f3b4c7e8..cc5d5e75b658 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1988,39 +1988,6 @@ static void ip6_tnl_netlink_parms(struct nlattr *data[],
parms->fwmark = nla_get_u32(data[IFLA_IPTUN_FWMARK]);
}
-static bool ip6_tnl_netlink_encap_parms(struct nlattr *data[],
- struct ip_tunnel_encap *ipencap)
-{
- bool ret = false;
-
- memset(ipencap, 0, sizeof(*ipencap));
-
- if (!data)
- return ret;
-
- if (data[IFLA_IPTUN_ENCAP_TYPE]) {
- ret = true;
- ipencap->type = nla_get_u16(data[IFLA_IPTUN_ENCAP_TYPE]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_FLAGS]) {
- ret = true;
- ipencap->flags = nla_get_u16(data[IFLA_IPTUN_ENCAP_FLAGS]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_SPORT]) {
- ret = true;
- ipencap->sport = nla_get_be16(data[IFLA_IPTUN_ENCAP_SPORT]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_DPORT]) {
- ret = true;
- ipencap->dport = nla_get_be16(data[IFLA_IPTUN_ENCAP_DPORT]);
- }
-
- return ret;
-}
-
static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
struct netlink_ext_ack *extack)
@@ -2033,7 +2000,7 @@ static int ip6_tnl_newlink(struct net *src_net, struct net_device *dev,
nt = netdev_priv(dev);
- if (ip6_tnl_netlink_encap_parms(data, &ipencap)) {
+ if (ip_tunnel_netlink_encap_parms(data, &ipencap)) {
err = ip6_tnl_encap_setup(nt, &ipencap);
if (err < 0)
return err;
@@ -2070,7 +2037,7 @@ static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
if (dev == ip6n->fb_tnl_dev)
return -EINVAL;
- if (ip6_tnl_netlink_encap_parms(data, &ipencap)) {
+ if (ip_tunnel_netlink_encap_parms(data, &ipencap)) {
int err = ip6_tnl_encap_setup(t, &ipencap);
if (err < 0)
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 98f1cf40746f..a8a258f672fa 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1534,40 +1534,6 @@ static void ipip6_netlink_parms(struct nlattr *data[],
*fwmark = nla_get_u32(data[IFLA_IPTUN_FWMARK]);
}
-/* This function returns true when ENCAP attributes are present in the nl msg */
-static bool ipip6_netlink_encap_parms(struct nlattr *data[],
- struct ip_tunnel_encap *ipencap)
-{
- bool ret = false;
-
- memset(ipencap, 0, sizeof(*ipencap));
-
- if (!data)
- return ret;
-
- if (data[IFLA_IPTUN_ENCAP_TYPE]) {
- ret = true;
- ipencap->type = nla_get_u16(data[IFLA_IPTUN_ENCAP_TYPE]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_FLAGS]) {
- ret = true;
- ipencap->flags = nla_get_u16(data[IFLA_IPTUN_ENCAP_FLAGS]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_SPORT]) {
- ret = true;
- ipencap->sport = nla_get_be16(data[IFLA_IPTUN_ENCAP_SPORT]);
- }
-
- if (data[IFLA_IPTUN_ENCAP_DPORT]) {
- ret = true;
- ipencap->dport = nla_get_be16(data[IFLA_IPTUN_ENCAP_DPORT]);
- }
-
- return ret;
-}
-
#ifdef CONFIG_IPV6_SIT_6RD
/* This function returns true when 6RD attributes are present in the nl msg */
static bool ipip6_netlink_6rd_parms(struct nlattr *data[],
@@ -1619,7 +1585,7 @@ static int ipip6_newlink(struct net *src_net, struct net_device *dev,
nt = netdev_priv(dev);
- if (ipip6_netlink_encap_parms(data, &ipencap)) {
+ if (ip_tunnel_netlink_encap_parms(data, &ipencap)) {
err = ip_tunnel_encap_setup(nt, &ipencap);
if (err < 0)
return err;
@@ -1671,7 +1637,7 @@ static int ipip6_changelink(struct net_device *dev, struct nlattr *tb[],
if (dev == sitn->fb_tunnel_dev)
return -EINVAL;
- if (ipip6_netlink_encap_parms(data, &ipencap)) {
+ if (ip_tunnel_netlink_encap_parms(data, &ipencap)) {
err = ip_tunnel_encap_setup(t, &ipencap);
if (err < 0)
return err;