text: /*
   * Copyright 2008, The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); 
   * you may not use this file except in compliance with the License. 
   * You may obtain a copy of the License at 
   *
   *     http://www.apache.org/licenses/LICENSE-2.0 
   *
   * Unless required by applicable law or agreed to in writing, software 
   * distributed under the License is distributed on an "AS IS" BASIS, 
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
   * See the License for the specific language governing permissions and 
   * limitations under the License.
   */
  
  #ifndef _NETUTILS_IFC_H_
  #define _NETUTILS_IFC_H_
  
  #include <sys/cdefs.h>
  #include <arpa/inet.h>
  
  __BEGIN_DECLS
  
  extern int ifc_init(void);
  extern void ifc_close(void);
  
  extern int ifc_get_ifindex(const char *name, int *if_indexp);
  extern int ifc_get_hwaddr(const char *name, void *ptr);
  
  extern int ifc_up(const char *name);
  extern int ifc_down(const char *name);
  
  extern int ifc_enable(const char *ifname);
  extern int ifc_disable(const char *ifname);
  
  #define RESET_IPV4_ADDRESSES 0x01
  #define RESET_IPV6_ADDRESSES 0x02
  #define RESET_IGNORE_INTERFACE_ADDRESS 0x04
  #define RESET_ALL_ADDRESSES  (RESET_IPV4_ADDRESSES | RESET_IPV6_ADDRESSES)
  extern int ifc_reset_connections(const char *ifname, const int reset_mask);
  
  extern int ifc_get_addr(const char *name, in_addr_t *addr);
  extern int ifc_set_addr(const char *name, in_addr_t addr);
  extern int ifc_add_address(const char *name, const char *address,
                             int prefixlen);
  extern int ifc_del_address(const char *name, const char *address,
                             int prefixlen);
  extern int ifc_set_prefixLength(const char *name, int prefixLength);
  extern int ifc_set_hwaddr(const char *name, const void *ptr);
  extern int ifc_clear_addresses(const char *name);
  
  extern int ifc_create_default_route(const char *name, in_addr_t addr);
  extern int ifc_remove_default_route(const char *ifname);
  extern int ifc_get_info(const char *name, in_addr_t *addr, int *prefixLength,
                          unsigned *flags);
  
  extern int ifc_configure(const char *ifname, in_addr_t address,
                           uint32_t prefixLength, in_addr_t gateway,
                           in_addr_t dns1, in_addr_t dns2);
  
  extern in_addr_t prefixLengthToIpv4Netmask(int prefix_length);
  
  extern int ifc_set_throttle(const char *ifname, int rxKbps, int txKbps);
  
  __END_DECLS
  
  #endif /* _NETUTILS_IFC_H_ */
  