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-rw-r--r--dom/network/NetUtils.cpp200
1 files changed, 200 insertions, 0 deletions
diff --git a/dom/network/NetUtils.cpp b/dom/network/NetUtils.cpp
new file mode 100644
index 000000000..78c5be802
--- /dev/null
+++ b/dom/network/NetUtils.cpp
@@ -0,0 +1,200 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "NetUtils.h"
+#include <dlfcn.h>
+#include <errno.h>
+#include "prinit.h"
+#include "mozilla/Assertions.h"
+#include "nsDebug.h"
+#include "SystemProperty.h"
+
+using mozilla::system::Property;
+
+static void* sNetUtilsLib;
+static PRCallOnceType sInitNetUtilsLib;
+
+static PRStatus
+InitNetUtilsLib()
+{
+ sNetUtilsLib = dlopen("/system/lib/libnetutils.so", RTLD_LAZY);
+ // We might fail to open the hardware lib. That's OK.
+ return PR_SUCCESS;
+}
+
+static void*
+GetNetUtilsLibHandle()
+{
+ PR_CallOnce(&sInitNetUtilsLib, InitNetUtilsLib);
+ return sNetUtilsLib;
+}
+
+// static
+void*
+NetUtils::GetSharedLibrary()
+{
+ void* netLib = GetNetUtilsLibHandle();
+ if (!netLib) {
+ NS_WARNING("No /system/lib/libnetutils.so");
+ }
+ return netLib;
+}
+
+// static
+int32_t
+NetUtils::SdkVersion()
+{
+ char propVersion[Property::VALUE_MAX_LENGTH];
+ Property::Get("ro.build.version.sdk", propVersion, "0");
+ int32_t version = strtol(propVersion, nullptr, 10);
+ return version;
+}
+
+DEFINE_DLFUNC(ifc_enable, int32_t, const char*)
+DEFINE_DLFUNC(ifc_disable, int32_t, const char*)
+DEFINE_DLFUNC(ifc_configure, int32_t, const char*, in_addr_t, uint32_t,
+ in_addr_t, in_addr_t, in_addr_t)
+DEFINE_DLFUNC(ifc_reset_connections, int32_t, const char*, const int32_t)
+DEFINE_DLFUNC(ifc_set_default_route, int32_t, const char*, in_addr_t)
+DEFINE_DLFUNC(ifc_add_route, int32_t, const char*, const char*, uint32_t, const char*)
+DEFINE_DLFUNC(ifc_remove_route, int32_t, const char*, const char*, uint32_t, const char*)
+DEFINE_DLFUNC(ifc_remove_host_routes, int32_t, const char*)
+DEFINE_DLFUNC(ifc_remove_default_route, int32_t, const char*)
+DEFINE_DLFUNC(dhcp_stop, int32_t, const char*)
+
+NetUtils::NetUtils()
+{
+}
+
+int32_t NetUtils::do_ifc_enable(const char *ifname)
+{
+ USE_DLFUNC(ifc_enable)
+ return ifc_enable(ifname);
+}
+
+int32_t NetUtils::do_ifc_disable(const char *ifname)
+{
+ USE_DLFUNC(ifc_disable)
+ return ifc_disable(ifname);
+}
+
+int32_t NetUtils::do_ifc_configure(const char *ifname,
+ in_addr_t address,
+ uint32_t prefixLength,
+ in_addr_t gateway,
+ in_addr_t dns1,
+ in_addr_t dns2)
+{
+ USE_DLFUNC(ifc_configure)
+ int32_t ret = ifc_configure(ifname, address, prefixLength, gateway, dns1, dns2);
+ return ret;
+}
+
+int32_t NetUtils::do_ifc_reset_connections(const char *ifname,
+ const int32_t resetMask)
+{
+ USE_DLFUNC(ifc_reset_connections)
+ return ifc_reset_connections(ifname, resetMask);
+}
+
+int32_t NetUtils::do_ifc_set_default_route(const char *ifname,
+ in_addr_t gateway)
+{
+ USE_DLFUNC(ifc_set_default_route)
+ return ifc_set_default_route(ifname, gateway);
+}
+
+int32_t NetUtils::do_ifc_add_route(const char *ifname,
+ const char *dst,
+ uint32_t prefixLength,
+ const char *gateway)
+{
+ USE_DLFUNC(ifc_add_route)
+ return ifc_add_route(ifname, dst, prefixLength, gateway);
+}
+
+int32_t NetUtils::do_ifc_remove_route(const char *ifname,
+ const char *dst,
+ uint32_t prefixLength,
+ const char *gateway)
+{
+ USE_DLFUNC(ifc_remove_route)
+ return ifc_remove_route(ifname, dst, prefixLength, gateway);
+}
+
+int32_t NetUtils::do_ifc_remove_host_routes(const char *ifname)
+{
+ USE_DLFUNC(ifc_remove_host_routes)
+ return ifc_remove_host_routes(ifname);
+}
+
+int32_t NetUtils::do_ifc_remove_default_route(const char *ifname)
+{
+ USE_DLFUNC(ifc_remove_default_route)
+ return ifc_remove_default_route(ifname);
+}
+
+int32_t NetUtils::do_dhcp_stop(const char *ifname)
+{
+ USE_DLFUNC(dhcp_stop)
+ return dhcp_stop(ifname);
+}
+
+int32_t NetUtils::do_dhcp_do_request(const char *ifname,
+ char *ipaddr,
+ char *gateway,
+ uint32_t *prefixLength,
+ char *dns1,
+ char *dns2,
+ char *server,
+ uint32_t *lease,
+ char* vendorinfo)
+{
+ int32_t ret = -1;
+ uint32_t sdkVersion = SdkVersion();
+
+ if (sdkVersion == 15) {
+ // ICS
+ // http://androidxref.com/4.0.4/xref/system/core/libnetutils/dhcp_utils.c#149
+ DEFINE_DLFUNC(dhcp_do_request, int32_t, const char*, char*, char*, uint32_t*, char*, char*, char*, uint32_t*)
+ USE_DLFUNC(dhcp_do_request)
+ vendorinfo[0] = '\0';
+
+ ret = dhcp_do_request(ifname, ipaddr, gateway, prefixLength, dns1, dns2,
+ server, lease);
+ } else if (sdkVersion == 16 || sdkVersion == 17) {
+ // JB 4.1 and 4.2
+ // http://androidxref.com/4.1.2/xref/system/core/libnetutils/dhcp_utils.c#175
+ // http://androidxref.com/4.2.2_r1/xref/system/core/include/netutils/dhcp.h#26
+ DEFINE_DLFUNC(dhcp_do_request, int32_t, const char*, char*, char*, uint32_t*, char*, char*, char*, uint32_t*, char*)
+ USE_DLFUNC(dhcp_do_request)
+ ret = dhcp_do_request(ifname, ipaddr, gateway, prefixLength, dns1, dns2,
+ server, lease, vendorinfo);
+ } else if (sdkVersion == 18) {
+ // JB 4.3
+ // http://androidxref.com/4.3_r2.1/xref/system/core/libnetutils/dhcp_utils.c#181
+ DEFINE_DLFUNC(dhcp_do_request, int32_t, const char*, char*, char*, uint32_t*, char**, char*, uint32_t*, char*, char*)
+ USE_DLFUNC(dhcp_do_request)
+ char *dns[3] = {dns1, dns2, nullptr};
+ char domains[Property::VALUE_MAX_LENGTH];
+ ret = dhcp_do_request(ifname, ipaddr, gateway, prefixLength, dns,
+ server, lease, vendorinfo, domains);
+ } else if (sdkVersion >= 19) {
+ // KitKat 4.4.X
+ // http://androidxref.com/4.4_r1/xref/system/core/libnetutils/dhcp_utils.c#18
+ // Lollipop 5.0
+ //http://androidxref.com/5.0.0_r2/xref/system/core/libnetutils/dhcp_utils.c#186
+ DEFINE_DLFUNC(dhcp_do_request, int32_t, const char*, char*, char*, uint32_t*, char**, char*, uint32_t*, char*, char*, char*)
+ USE_DLFUNC(dhcp_do_request)
+ char *dns[3] = {dns1, dns2, nullptr};
+ char domains[Property::VALUE_MAX_LENGTH];
+ char mtu[Property::VALUE_MAX_LENGTH];
+ ret = dhcp_do_request(ifname, ipaddr, gateway, prefixLength, dns, server, lease, vendorinfo, domains, mtu);
+ } else {
+ NS_WARNING("Unable to perform do_dhcp_request: unsupported sdk version!");
+ }
+ return ret;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 21:09:18 +0000