netifd: vxlan: handle srcport range

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index c5583e079c9b9a3eaabd704bcfe3a959e07bc9bb..42f0de3bbe0ec6259d69a6454dd02f4506d1599f 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -3184,6 +3184,32 @@ static int system_add_vxlan(const char *name, const unsigned int link, struct bl
        }
        nla_put_u16(msg, IFLA_VXLAN_PORT, htons(port));
 
+       if ((cur = tb_data[VXLAN_DATA_ATTR_SRCPORTMIN])) {
+               struct ifla_vxlan_port_range srcports = {0,0};
+
+               uint32_t low = blobmsg_get_u32(cur);
+               if (low < 1 || low > 65535 - 1) {
+                       ret = -EINVAL;
+                       goto failure;
+               }
+
+               srcports.low = htons((uint16_t) low);
+               srcports.high = htons((uint16_t) (low+1));
+
+               if ((cur = tb_data[VXLAN_DATA_ATTR_SRCPORTMAX])) {
+                       uint32_t high = blobmsg_get_u32(cur);
+                       if (high < 1 || high > 65535) {
+                               ret = -EINVAL;
+                               goto failure;
+                       }
+
+                       if (high > low)
+                               srcports.high = htons((uint16_t) high);
+               }
+
+               nla_put(msg, IFLA_VXLAN_PORT_RANGE, sizeof(srcports), &srcports);
+       }
+
        if ((cur = tb_data[VXLAN_DATA_ATTR_RXCSUM])) {
                bool rxcsum = blobmsg_get_bool(cur);
                nla_put_u8(msg, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, !rxcsum);