static int vlan_validate(struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { struct ifla_vlan_flags *flags; u16 id; int err; if (tb[IFLA_ADDRESS]) { if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) return -EINVAL; if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) return -EADDRNOTAVAIL; } if (!data) return -EINVAL; if (data[IFLA_VLAN_PROTOCOL]) { switch (nla_get_be16(data[IFLA_VLAN_PROTOCOL])) { case htons(ETH_P_8021Q): case htons(ETH_P_8021AD): break; default: return -EPROTONOSUPPORT; } } if (data[IFLA_VLAN_ID]) { id = nla_get_u16(data[IFLA_VLAN_ID]); if (id >= VLAN_VID_MASK) return -ERANGE; } if (data[IFLA_VLAN_FLAGS]) { flags = nla_data(data[IFLA_VLAN_FLAGS]); if ((flags->flags & flags->mask) & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP)) return -EINVAL; } err = vlan_validate_qos_map(data[IFLA_VLAN_INGRESS_QOS]); if (err < 0) return err; err = vlan_validate_qos_map(data[IFLA_VLAN_EGRESS_QOS]); if (err < 0) return err; return 0; }
static int vlan_validate(struct nlattr *tb[], struct nlattr *data[]) { struct ifla_vlan_flags *flags; u16 id; int err; if (tb[IFLA_ADDRESS]) { if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) return -EINVAL; if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) return -EADDRNOTAVAIL; } if (!data) return -EINVAL; if (data[IFLA_VLAN_ID]) { id = nla_get_u16(data[IFLA_VLAN_ID]); if (id >= VLAN_VID_MASK) return -ERANGE; } if (data[IFLA_VLAN_FLAGS]) { flags = nla_data(data[IFLA_VLAN_FLAGS]); if ((flags->flags & flags->mask) & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | VLAN_FLAG_LOOSE_BINDING)) return -EINVAL; } err = vlan_validate_qos_map(data[IFLA_VLAN_INGRESS_QOS]); if (err < 0) return err; err = vlan_validate_qos_map(data[IFLA_VLAN_EGRESS_QOS]); if (err < 0) return err; return 0; }