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 #include "prlock.h"
  15
  16 // Copied from ifc.h
  17 #define RESET_IPV4_ADDRESSES 0x01
  18 #define RESET_IPV6_ADDRESSES 0x02
  19 #define RESET_ALL_ADDRESSES  (RESET_IPV4_ADDRESSES | RESET_IPV6_ADDRESSES)
  20
  21 // Implements netutils functions. No need for an abstract class here since we
  22 // only have a one sdk specific method (dhcp_do_request)
  23 class NetUtils
  24 {
  25 public:
  26   static void* GetSharedLibrary();
  27
  28   NetUtils();
  29
  30   int32_t do_ifc_enable(const char *ifname);
  31   int32_t do_ifc_disable(const char *ifname);
  32   int32_t do_ifc_configure(const char *ifname,
  33                            in_addr_t address,
  34                            uint32_t prefixLength,
  35                            in_addr_t gateway,
  36                            in_addr_t dns1,
  37                            in_addr_t dns2);
  38   int32_t do_ifc_reset_connections(const char *ifname, const int32_t resetMask);
  39   int32_t do_ifc_set_default_route(const char *ifname, in_addr_t gateway);
  40   int32_t do_ifc_add_route(const char *ifname,
  41                            const char *dst,
  42                            uint32_t prefixLength,
  43                            const char *gateway);
  44   int32_t do_ifc_remove_route(const char *ifname,
  45                               const char *dst,
  46                               uint32_t prefixLength,
  47                               const char *gateway);
  48   int32_t do_ifc_remove_host_routes(const char *ifname);
  49   int32_t do_ifc_remove_default_route(const char *ifname);
  50   int32_t do_dhcp_stop(const char *ifname);
  51   int32_t do_dhcp_do_request(const char *ifname,
  52                              char *ipaddr,
  53                              char *gateway,
  54                              uint32_t *prefixLength,
  55                              char *dns1,
  56                              char *dns2,
  57                              char *server,
  58                              uint32_t  *lease,
  59                              char* vendorinfo);
  60
  61   static int32_t SdkVersion();
  62
  63 private:
  64   static PRLock* sIfcLock;
  65 };
  66
  67 // Defines a function type with the right arguments and return type.
  68 #define DEFINE_DLFUNC(name, ret, args...) typedef ret (*FUNC##name)(args);
  69
  70 // Set up a dlsymed function ready to use.
  71 #define USE_DLFUNC(name)                                                      \
  72   FUNC##name name = (FUNC##name) dlsym(GetSharedLibrary(), #name);            \
  73   if (!name) {                                                                \
  74     MOZ_CRASH("Symbol not found in shared library : " #name);                 \
  75   }
  76
  77 #endif // NetUtils_h