From 1124fb525bf7b8341170d886b8de070e20323efd Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Sun, 13 May 2018 22:46:04 +0200 Subject: Remove other gonk widget conditionals and unused files. Tag #288. --- dom/wifi/WifiUtils.cpp | 521 ------------------------------------------------- 1 file changed, 521 deletions(-) delete mode 100644 dom/wifi/WifiUtils.cpp (limited to 'dom/wifi/WifiUtils.cpp') diff --git a/dom/wifi/WifiUtils.cpp b/dom/wifi/WifiUtils.cpp deleted file mode 100644 index 2526c9ea4..000000000 --- a/dom/wifi/WifiUtils.cpp +++ /dev/null @@ -1,521 +0,0 @@ -/* -*- 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 "WifiUtils.h" -#include -#include -#include -#include "prinit.h" -#include "mozilla/Sprintf.h" -#include "js/CharacterEncoding.h" - -using namespace mozilla::dom; - -#define BUFFER_SIZE 4096 -#define COMMAND_SIZE 256 - -// Intentionally not trying to dlclose() this handle. That's playing -// Russian roulette with security bugs. -static void* sWifiLib; -static PRCallOnceType sInitWifiLib; - -static PRStatus -InitWifiLib() -{ - sWifiLib = dlopen("/system/lib/libhardware_legacy.so", RTLD_LAZY); - // We might fail to open the hardware lib. That's OK. - return PR_SUCCESS; -} - -static void* -GetSharedLibrary() -{ - PR_CallOnce(&sInitWifiLib, InitWifiLib); - return sWifiLib; -} - -static bool -GetWifiP2pSupported() -{ - char propP2pSupported[PROPERTY_VALUE_MAX]; - property_get("ro.moz.wifi.p2p_supported", propP2pSupported, "0"); - return (0 == strcmp(propP2pSupported, "1")); -} - -static int -hex2num(char c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - if (c >= 'a' && c <= 'f') - return c - 'a' + 10; - if (c >= 'A' && c <= 'F') - return c - 'A' + 10; - return -1; -} - -static int -hex2byte(const char* hex) -{ - int a, b; - a = hex2num(*hex++); - if (a < 0) - return -1; - b = hex2num(*hex++); - if (b < 0) - return -1; - return (a << 4) | b; -} - -// This function is equivalent to printf_decode() at src/utils/common.c in -// the supplicant. - -static uint32_t -convertToBytes(char* buf, uint32_t maxlen, const char* str) -{ - const char *pos = str; - uint32_t len = 0; - int val; - - while (*pos) { - if (len == maxlen) - break; - switch (*pos) { - case '\\': - pos++; - switch (*pos) { - case '\\': - buf[len++] = '\\'; - pos++; - break; - case '"': - buf[len++] = '"'; - pos++; - break; - case 'n': - buf[len++] = '\n'; - pos++; - break; - case 'r': - buf[len++] = '\r'; - pos++; - break; - case 't': - buf[len++] = '\t'; - pos++; - break; - case 'e': - buf[len++] = '\e'; - pos++; - break; - case 'x': - pos++; - val = hex2byte(pos); - if (val < 0) { - val = hex2num(*pos); - if (val < 0) - break; - buf[len++] = val; - pos++; - } else { - buf[len++] = val; - pos += 2; - } - break; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - val = *pos++ - '0'; - if (*pos >= '0' && *pos <= '7') - val = val * 8 + (*pos++ - '0'); - if (*pos >= '0' && *pos <= '7') - val = val * 8 + (*pos++ - '0'); - buf[len++] = val; - break; - default: - break; - } - break; - default: - buf[len++] = *pos++; - break; - } - } - return len; -} - -// This is the same algorithm as in InflateUTF8StringToBuffer with Copy and -// while ignoring invalids. -// https://mxr.mozilla.org/mozilla-central/source/js/src/vm/CharacterEncoding.cpp#231 - -static const uint32_t REPLACE_UTF8 = 0xFFFD; - -static void -LossyConvertUTF8toUTF16(const char* aInput, uint32_t aLength, nsAString& aOut) -{ - JS::UTF8Chars src(aInput, aLength); - - char16_t dst[aLength]; // Allocating for worst case. - - // Count how many char16_t characters are needed in the inflated string. - // |i| is the index into |src|, and |j| is the the index into |dst|. - size_t srclen = src.length(); - uint32_t j = 0; - for (uint32_t i = 0; i < srclen; i++, j++) { - uint32_t v = uint32_t(src[i]); - if (v == uint32_t('\0') && i < srclen - 1) { - // If the leading byte is '\0' and it's not the last byte, - // just ignore it to prevent from being truncated. This could - // be caused by |convertToBytes| (e.g. \x00 would be converted to '\0') - j--; - continue; - } - if (!(v & 0x80)) { - // ASCII code unit. Simple copy. - dst[j] = char16_t(v); - } else { - // Non-ASCII code unit. Determine its length in bytes (n). - uint32_t n = 1; - while (v & (0x80 >> n)) - n++; - - #define INVALID(report, arg, n2) \ - do { \ - n = n2; \ - goto invalidMultiByteCodeUnit; \ - } while (0) - - // Check the leading byte. - if (n < 2 || n > 4) - INVALID(ReportInvalidCharacter, i, 1); - - // Check that |src| is large enough to hold an n-byte code unit. - if (i + n > srclen) - INVALID(ReportBufferTooSmall, /* dummy = */ 0, 1); - - // Check the second byte. From Unicode Standard v6.2, Table 3-7 - // Well-Formed UTF-8 Byte Sequences. - if ((v == 0xE0 && ((uint8_t)src[i + 1] & 0xE0) != 0xA0) || // E0 A0~BF - (v == 0xED && ((uint8_t)src[i + 1] & 0xE0) != 0x80) || // ED 80~9F - (v == 0xF0 && ((uint8_t)src[i + 1] & 0xF0) == 0x80) || // F0 90~BF - (v == 0xF4 && ((uint8_t)src[i + 1] & 0xF0) != 0x80)) // F4 80~8F - { - INVALID(ReportInvalidCharacter, i, 1); - } - - // Check the continuation bytes. - for (uint32_t m = 1; m < n; m++) - if ((src[i + m] & 0xC0) != 0x80) - INVALID(ReportInvalidCharacter, i, m); - - // Determine the code unit's length in char16_t units and act accordingly. - v = JS::Utf8ToOneUcs4Char((uint8_t *)&src[i], n); - if (v < 0x10000) { - // The n-byte UTF8 code unit will fit in a single char16_t. - dst[j] = char16_t(v); - } else { - v -= 0x10000; - if (v <= 0xFFFFF) { - // The n-byte UTF8 code unit will fit in two char16_t units. - dst[j] = char16_t((v >> 10) + 0xD800); - j++; - dst[j] = char16_t((v & 0x3FF) + 0xDC00); - } else { - // The n-byte UTF8 code unit won't fit in two char16_t units. - INVALID(ReportTooBigCharacter, v, 1); - } - } - - invalidMultiByteCodeUnit: - // Move i to the last byte of the multi-byte code unit; the loop - // header will do the final i++ to move to the start of the next - // code unit. - i += n - 1; - } - } - - dst[j] = 0; - aOut = dst; -} - -// Helper to check we have loaded the hardware shared library. -#define CHECK_HWLIB(ret) \ - void* hwLib = GetSharedLibrary(); \ - if (!hwLib) { \ - NS_WARNING("No /system/lib/libhardware_legacy.so"); \ - return ret; \ - } - -#define DEFAULT_IMPL(name, ret, args...) \ - DEFINE_DLFUNC(name, ret, args...) \ - ret do_##name(args) { \ - USE_DLFUNC(name) \ - return name(args); \ - } - -// ICS implementation. -class ICSWpaSupplicantImpl : public WpaSupplicantImpl -{ -public: - DEFAULT_IMPL(wifi_load_driver, int32_t, ) - DEFAULT_IMPL(wifi_unload_driver, int32_t, ) - - DEFINE_DLFUNC(wifi_wait_for_event, int32_t, char*, size_t) - int32_t do_wifi_wait_for_event(const char *iface, char *buf, size_t len) { - USE_DLFUNC(wifi_wait_for_event) - return wifi_wait_for_event(buf, len); - } - - DEFINE_DLFUNC(wifi_command, int32_t, const char*, char*, size_t*) - int32_t do_wifi_command(const char* iface, const char* cmd, char* buf, size_t* len) { - USE_DLFUNC(wifi_command) - return wifi_command(cmd, buf, len); - } - - DEFINE_DLFUNC(wifi_start_supplicant, int32_t, ) - int32_t do_wifi_start_supplicant(int32_t) { - USE_DLFUNC(wifi_start_supplicant) - return wifi_start_supplicant(); - } - - DEFINE_DLFUNC(wifi_stop_supplicant, int32_t) - int32_t do_wifi_stop_supplicant(int32_t) { - USE_DLFUNC(wifi_stop_supplicant) - return wifi_stop_supplicant(); - } - - DEFINE_DLFUNC(wifi_connect_to_supplicant, int32_t, ) - int32_t do_wifi_connect_to_supplicant(const char* iface) { - USE_DLFUNC(wifi_connect_to_supplicant) - return wifi_connect_to_supplicant(); - } - - DEFINE_DLFUNC(wifi_close_supplicant_connection, void, ) - void do_wifi_close_supplicant_connection(const char* iface) { - USE_DLFUNC(wifi_close_supplicant_connection) - return wifi_close_supplicant_connection(); - } -}; - -// JB implementation. -// We only redefine the methods that have a different signature than on ICS. -class JBWpaSupplicantImpl : public ICSWpaSupplicantImpl -{ -public: - DEFINE_DLFUNC(wifi_wait_for_event, int32_t, const char*, char*, size_t) - int32_t do_wifi_wait_for_event(const char* iface, char* buf, size_t len) { - USE_DLFUNC(wifi_wait_for_event) - return wifi_wait_for_event(iface, buf, len); - } - - DEFINE_DLFUNC(wifi_command, int32_t, const char*, const char*, char*, size_t*) - int32_t do_wifi_command(const char* iface, const char* cmd, char* buf, size_t* len) { - USE_DLFUNC(wifi_command) - return wifi_command(iface, cmd, buf, len); - } - - DEFINE_DLFUNC(wifi_start_supplicant, int32_t, int32_t) - int32_t do_wifi_start_supplicant(int32_t arg) { - USE_DLFUNC(wifi_start_supplicant) - return wifi_start_supplicant(arg); - } - - DEFINE_DLFUNC(wifi_stop_supplicant, int32_t, int32_t) - int32_t do_wifi_stop_supplicant(int32_t arg) { - USE_DLFUNC(wifi_stop_supplicant) - return wifi_stop_supplicant(arg); - } - - DEFINE_DLFUNC(wifi_connect_to_supplicant, int32_t, const char*) - int32_t do_wifi_connect_to_supplicant(const char* iface) { - USE_DLFUNC(wifi_connect_to_supplicant) - return wifi_connect_to_supplicant(iface); - } - - DEFINE_DLFUNC(wifi_close_supplicant_connection, void, const char*) - void do_wifi_close_supplicant_connection(const char* iface) { - USE_DLFUNC(wifi_close_supplicant_connection) - wifi_close_supplicant_connection(iface); - } -}; - -// KK implementation. -// We only redefine the methods that have a different signature than on ICS. -class KKWpaSupplicantImpl : public ICSWpaSupplicantImpl -{ -public: - DEFINE_DLFUNC(wifi_start_supplicant, int32_t, int32_t) - int32_t do_wifi_start_supplicant(int32_t arg) { - USE_DLFUNC(wifi_start_supplicant) - return wifi_start_supplicant(arg); - } - - DEFINE_DLFUNC(wifi_stop_supplicant, int32_t, int32_t) - int32_t do_wifi_stop_supplicant(int32_t arg) { - USE_DLFUNC(wifi_stop_supplicant) - return wifi_stop_supplicant(arg); - } - - DEFINE_DLFUNC(wifi_command, int32_t, const char*, char*, size_t*) - int32_t do_wifi_command(const char* iface, const char* cmd, char* buf, size_t* len) { - char command[COMMAND_SIZE]; - if (!strcmp(iface, "p2p0")) { - // Commands for p2p0 interface don't need prefix - SprintfLiteral(command, "%s", cmd); - } - else { - SprintfLiteral(command, "IFNAME=%s %s", iface, cmd); - } - USE_DLFUNC(wifi_command) - return wifi_command(command, buf, len); - } -}; - -// Concrete class to use to access the wpa supplicant. -WpaSupplicant::WpaSupplicant() -{ - char propVersion[PROPERTY_VALUE_MAX]; - property_get("ro.build.version.sdk", propVersion, "0"); - mSdkVersion = strtol(propVersion, nullptr, 10); - - if (mSdkVersion < 16) { - mImpl = MakeUnique(); - } else if (mSdkVersion < 19) { - mImpl = MakeUnique(); - } else { - mImpl = MakeUnique(); - } - mWifiHotspotUtils = MakeUnique(); -}; - -void WpaSupplicant::WaitForEvent(nsAString& aEvent, const nsCString& aInterface) -{ - CHECK_HWLIB() - - char buffer[BUFFER_SIZE]; - int32_t ret = mImpl->do_wifi_wait_for_event(aInterface.get(), buffer, BUFFER_SIZE); - CheckBuffer(buffer, ret, aEvent); -} - -#define GET_CHAR(prop) NS_ConvertUTF16toUTF8(aOptions.prop).get() - -/** - * Make a subnet mask. - */ -uint32_t WpaSupplicant::MakeMask(uint32_t len) { - uint32_t mask = 0; - for (uint32_t i = 0; i < len; ++i) { - mask |= (0x80000000 >> i); - } - return ntohl(mask); -} - -bool WpaSupplicant::ExecuteCommand(CommandOptions aOptions, - WifiResultOptions& aResult, - const nsCString& aInterface) -{ - CHECK_HWLIB(false) - - if (!mWifiHotspotUtils->GetSharedLibrary()) { - return false; - } - - // Always correlate the opaque ids. - aResult.mId = aOptions.mId; - - if (aOptions.mCmd.EqualsLiteral("command")) { - size_t len = BUFFER_SIZE - 1; - char buffer[BUFFER_SIZE]; - NS_ConvertUTF16toUTF8 request(aOptions.mRequest); - aResult.mStatus = mImpl->do_wifi_command(aInterface.get(), request.get(), buffer, &len); - nsString value; - if (aResult.mStatus == 0) { - if (buffer[len - 1] == '\n') { // remove trailing new lines. - len--; - } - buffer[len] = '\0'; - CheckBuffer(buffer, len, value); - } - aResult.mReply = value; - } else if (aOptions.mCmd.EqualsLiteral("close_supplicant_connection")) { - mImpl->do_wifi_close_supplicant_connection(aInterface.get()); - } else if (aOptions.mCmd.EqualsLiteral("load_driver")) { - aResult.mStatus = mImpl->do_wifi_load_driver(); - } else if (aOptions.mCmd.EqualsLiteral("unload_driver")) { - aResult.mStatus = mImpl->do_wifi_unload_driver(); - } else if (aOptions.mCmd.EqualsLiteral("start_supplicant")) { - aResult.mStatus = mImpl->do_wifi_start_supplicant(GetWifiP2pSupported() ? 1 : 0); - } else if (aOptions.mCmd.EqualsLiteral("stop_supplicant")) { - aResult.mStatus = mImpl->do_wifi_stop_supplicant(0); - } else if (aOptions.mCmd.EqualsLiteral("connect_to_supplicant")) { - aResult.mStatus = mImpl->do_wifi_connect_to_supplicant(aInterface.get()); - } else if (aOptions.mCmd.EqualsLiteral("hostapd_command")) { - size_t len = BUFFER_SIZE - 1; - char buffer[BUFFER_SIZE]; - NS_ConvertUTF16toUTF8 request(aOptions.mRequest); - aResult.mStatus = mWifiHotspotUtils->do_wifi_hostapd_command(request.get(), - buffer, - &len); - nsString value; - if (aResult.mStatus == 0) { - if (buffer[len - 1] == '\n') { // remove trailing new lines. - len--; - } - buffer[len] = '\0'; - CheckBuffer(buffer, len, value); - } - aResult.mReply = value; - } else if (aOptions.mCmd.EqualsLiteral("hostapd_get_stations")) { - aResult.mStatus = mWifiHotspotUtils->do_wifi_hostapd_get_stations(); - } else if (aOptions.mCmd.EqualsLiteral("connect_to_hostapd")) { - aResult.mStatus = mWifiHotspotUtils->do_wifi_connect_to_hostapd(); - } else if (aOptions.mCmd.EqualsLiteral("close_hostapd_connection")) { - aResult.mStatus = mWifiHotspotUtils->do_wifi_close_hostapd_connection(); - - } else { - NS_WARNING("WpaSupplicant::ExecuteCommand : Unknown command"); - printf_stderr("WpaSupplicant::ExecuteCommand : Unknown command: %s", - NS_ConvertUTF16toUTF8(aOptions.mCmd).get()); - return false; - } - - return true; -} - -// Checks the buffer and do the utf processing. -void -WpaSupplicant::CheckBuffer(char* buffer, int32_t length, - nsAString& aEvent) -{ - if (length <= 0 || length >= (BUFFER_SIZE - 1)) { - NS_WARNING("WpaSupplicant::CheckBuffer: Invalid buffer length"); - return; - } - - if (mSdkVersion < 18) { - buffer[length] = 0; - LossyConvertUTF8toUTF16(buffer, length, aEvent); - return; - } - - // After Android JB4.3, the SSIDs have been converted into printable form. - // In most of cases, SSIDs do not use unprintable characters, but IEEE 802.11 - // standard does not limit the used character set, so anything could be used - // in an SSID. Convert it to raw data form here. - char bytesBuffer[BUFFER_SIZE]; - uint32_t bytes = convertToBytes(bytesBuffer, length, buffer); - if (bytes <= 0 || bytes >= BUFFER_SIZE) { - NS_WARNING("WpaSupplicant::CheckBuffer: Invalid bytesbuffer length"); - return; - } - bytesBuffer[bytes] = 0; - LossyConvertUTF8toUTF16(bytesBuffer, bytes, aEvent); -} -- cgit v1.2.3