diff options
| author | Liu Jian <liujian56@huawei.com> | 2022-09-29 21:52:02 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-10-03 07:59:06 +0100 |
| commit | 537dd2d9fb9f4aa7939fb4fcf552ebe4f497bd7e (patch) | |
| tree | c346d5ef2525431db618326bf51cd3355c1a9fb5 /net/ipv4 | |
| parent | 42e8e6d906dabb58a0e0ea53443b0e0a0821f1d5 (diff) | |
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/ipv4')
| -rw-r--r-- | net/ipv4/ip_tunnel_core.c | 35 | ||||
| -rw-r--r-- | net/ipv4/ipip.c | 38 |
2 files changed, 37 insertions, 36 deletions
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c index cc1caab4a654..6d08f7e39191 100644 --- a/net/ipv4/ip_tunnel_core.c +++ b/net/ipv4/ip_tunnel_core.c @@ -1079,3 +1079,38 @@ EXPORT_SYMBOL(ip_tunnel_parse_protocol); const struct header_ops ip_tunnel_header_ops = { .parse_protocol = ip_tunnel_parse_protocol }; EXPORT_SYMBOL(ip_tunnel_header_ops); + +/* This function returns true when ENCAP attributes are present in the nl msg */ +bool ip_tunnel_netlink_encap_parms(struct nlattr *data[], + struct ip_tunnel_encap *encap) +{ + bool ret = false; + + memset(encap, 0, sizeof(*encap)); + + if (!data) + return ret; + + if (data[IFLA_IPTUN_ENCAP_TYPE]) { + ret = true; + encap->type = nla_get_u16(data[IFLA_IPTUN_ENCAP_TYPE]); + } + + if (data[IFLA_IPTUN_ENCAP_FLAGS]) { + ret = true; + encap->flags = nla_get_u16(data[IFLA_IPTUN_ENCAP_FLAGS]); + } + + if (data[IFLA_IPTUN_ENCAP_SPORT]) { + ret = true; + encap->sport = nla_get_be16(data[IFLA_IPTUN_ENCAP_SPORT]); + } + + if (data[IFLA_IPTUN_ENCAP_DPORT]) { + ret = true; + encap->dport = nla_get_be16(data[IFLA_IPTUN_ENCAP_DPORT]); + } + + return ret; +} +EXPORT_SYMBOL_GPL(ip_tunnel_netlink_encap_parms); diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 123ea63a04cb..7c64ca06adf3 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -448,40 +448,6 @@ static void ipip_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 ipip_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 ipip_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) @@ -491,7 +457,7 @@ static int ipip_newlink(struct net *src_net, struct net_device *dev, struct ip_tunnel_encap ipencap; __u32 fwmark = 0; - if (ipip_netlink_encap_parms(data, &ipencap)) { + if (ip_tunnel_netlink_encap_parms(data, &ipencap)) { int err = ip_tunnel_encap_setup(t, &ipencap); if (err < 0) @@ -512,7 +478,7 @@ static int ipip_changelink(struct net_device *dev, struct nlattr *tb[], bool collect_md; __u32 fwmark = t->fwmark; - if (ipip_netlink_encap_parms(data, &ipencap)) { + if (ip_tunnel_netlink_encap_parms(data, &ipencap)) { int err = ip_tunnel_encap_setup(t, &ipencap); if (err < 0) |