dom/network/NetUtils.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 /**
   6  * Abstraction on top of the network support from libnetutils that we
   7  * use to set up network connections.
   8  */
   9
  10 #ifndef NetUtils_h
  11 #define NetUtils_h
  12
  13 #include "arpa/inet.h"
  14
  15 // Copied from ifc.h
  16 #define RESET_IPV4_ADDRESSES 0x01
  17 #define RESET_IPV6_ADDRESSES 0x02
  18 #define RESET_ALL_ADDRESSES  (RESET_IPV4_ADDRESSES | RESET_IPV6_ADDRESSES)
  19
  20 // Implements netutils functions. No need for an abstract class here since we
  21 // only have a one sdk specific method (dhcp_do_request)
  22 class NetUtils
  23 {
  24 public:
  25   static void* GetSharedLibrary();
  26
  27   NetUtils();
  28
  29   int32_t do_ifc_enable(const char *ifname);
  30   int32_t do_ifc_disable(const char *ifname);
  31   int32_t do_ifc_configure(const char *ifname,
  32                            in_addr_t address,
  33                            uint32_t prefixLength,
  34                            in_addr_t gateway,
  35                            in_addr_t dns1,
  36                            in_addr_t dns2);
  37   int32_t do_ifc_reset_connections(const char *ifname, const int32_t resetMask);
  38   int32_t do_ifc_set_default_route(const char *ifname, in_addr_t gateway);
  39   int32_t do_ifc_add_route(const char *ifname,
  40                            const char *dst,
  41                            uint32_t prefixLength,
  42                            const char *gateway);
  43   int32_t do_ifc_remove_route(const char *ifname,
  44                               const char *dst,
  45                               uint32_t prefixLength,
  46                               const char *gateway);
  47   int32_t do_ifc_remove_host_routes(const char *ifname);
  48   int32_t do_ifc_remove_default_route(const char *ifname);
  49   int32_t do_dhcp_stop(const char *ifname);
  50   int32_t do_dhcp_do_request(const char *ifname,
  51                              char *ipaddr,
  52                              char *gateway,
  53                              uint32_t *prefixLength,
  54                              char *dns1,
  55                              char *dns2,
  56                              char *server,
  57                              uint32_t  *lease,
  58                              char* vendorinfo);
  59
  60   static int32_t SdkVersion();
  61 };
  62
  63 // Defines a function type with the right arguments and return type.
  64 #define DEFINE_DLFUNC(name, ret, args...) typedef ret (*FUNC##name)(args);
  65
  66 // Set up a dlsymed function ready to use.
  67 #define USE_DLFUNC(name)                                                      \
  68   FUNC##name name = (FUNC##name) dlsym(GetSharedLibrary(), #name);            \
  69   if (!name) {                                                                \
  70     MOZ_CRASH("Symbol not found in shared library : " #name);                 \
  71   }
  72
  73 #endif // NetUtils_h