diff options
Diffstat (limited to 'drivers/net/vxlan')
| -rw-r--r-- | drivers/net/vxlan/vxlan_core.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 412c3c0b6990..764ea02ff911 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -2379,7 +2379,17 @@ void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, else udp_sum = !(flags & VXLAN_F_UDP_ZERO_CSUM6_TX); #if IS_ENABLED(CONFIG_IPV6) - key.label = vxlan->cfg.label; + switch (vxlan->cfg.label_policy) { + case VXLAN_LABEL_FIXED: + key.label = vxlan->cfg.label; + break; + case VXLAN_LABEL_INHERIT: + key.label = ip_tunnel_get_flowlabel(old_iph, skb); + break; + default: + DEBUG_NET_WARN_ON_ONCE(1); + goto drop; + } #endif } else { if (!info) { @@ -3366,6 +3376,7 @@ static const struct nla_policy vxlan_policy[IFLA_VXLAN_MAX + 1] = { [IFLA_VXLAN_DF] = { .type = NLA_U8 }, [IFLA_VXLAN_VNIFILTER] = { .type = NLA_U8 }, [IFLA_VXLAN_LOCALBYPASS] = NLA_POLICY_MAX(NLA_U8, 1), + [IFLA_VXLAN_LABEL_POLICY] = NLA_POLICY_MAX(NLA_U32, VXLAN_LABEL_MAX), }; static int vxlan_validate(struct nlattr *tb[], struct nlattr *data[], @@ -3740,6 +3751,12 @@ static int vxlan_config_validate(struct net *src_net, struct vxlan_config *conf, return -EINVAL; } + if (conf->label_policy && !use_ipv6) { + NL_SET_ERR_MSG(extack, + "Label policy only applies to IPv6 VXLAN devices"); + return -EINVAL; + } + if (conf->remote_ifindex) { struct net_device *lowerdev; @@ -4082,6 +4099,8 @@ static int vxlan_nl2conf(struct nlattr *tb[], struct nlattr *data[], if (data[IFLA_VXLAN_LABEL]) conf->label = nla_get_be32(data[IFLA_VXLAN_LABEL]) & IPV6_FLOWLABEL_MASK; + if (data[IFLA_VXLAN_LABEL_POLICY]) + conf->label_policy = nla_get_u32(data[IFLA_VXLAN_LABEL_POLICY]); if (data[IFLA_VXLAN_LEARNING]) { err = vxlan_nl2flag(conf, data, IFLA_VXLAN_LEARNING, @@ -4398,6 +4417,7 @@ static size_t vxlan_get_size(const struct net_device *dev) nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_TOS */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_DF */ nla_total_size(sizeof(__be32)) + /* IFLA_VXLAN_LABEL */ + nla_total_size(sizeof(__u32)) + /* IFLA_VXLAN_LABEL_POLICY */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_LEARNING */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_PROXY */ nla_total_size(sizeof(__u8)) + /* IFLA_VXLAN_RSC */ @@ -4471,6 +4491,7 @@ static int vxlan_fill_info(struct sk_buff *skb, const struct net_device *dev) nla_put_u8(skb, IFLA_VXLAN_TOS, vxlan->cfg.tos) || nla_put_u8(skb, IFLA_VXLAN_DF, vxlan->cfg.df) || nla_put_be32(skb, IFLA_VXLAN_LABEL, vxlan->cfg.label) || + nla_put_u32(skb, IFLA_VXLAN_LABEL_POLICY, vxlan->cfg.label_policy) || nla_put_u8(skb, IFLA_VXLAN_LEARNING, !!(vxlan->cfg.flags & VXLAN_F_LEARN)) || nla_put_u8(skb, IFLA_VXLAN_PROXY, |