From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- netwerk/base/NetworkInfoServiceLinux.cpp | 96 ++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 netwerk/base/NetworkInfoServiceLinux.cpp (limited to 'netwerk/base/NetworkInfoServiceLinux.cpp') diff --git a/netwerk/base/NetworkInfoServiceLinux.cpp b/netwerk/base/NetworkInfoServiceLinux.cpp new file mode 100644 index 0000000000..9b42ad6dbd --- /dev/null +++ b/netwerk/base/NetworkInfoServiceLinux.cpp @@ -0,0 +1,96 @@ +/* -*- 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 +#include +#include +#include +#include +#include +#include + +#include "mozilla/DebugOnly.h" +#include "mozilla/ScopeExit.h" + +#include "NetworkInfoServiceImpl.h" + +namespace mozilla::net { + +static nsresult ListInterfaceAddresses(int aFd, const char* aIface, + AddrMapType& aAddrMap); + +nsresult DoListAddresses(AddrMapType& aAddrMap) { + int fd = socket(AF_INET, SOCK_DGRAM, 0); + if (fd < 0) { + return NS_ERROR_FAILURE; + } + + auto autoCloseSocket = MakeScopeExit([&] { close(fd); }); + + struct ifconf ifconf; + /* 16k of space should be enough to list all interfaces. Worst case, if it's + * not then we will error out and fail to list addresses. This should only + * happen on pathological machines with way too many interfaces. + */ + char buf[16384]; + + ifconf.ifc_len = sizeof(buf); + ifconf.ifc_buf = buf; + if (ioctl(fd, SIOCGIFCONF, &ifconf) != 0) { + return NS_ERROR_FAILURE; + } + + struct ifreq* ifreq = ifconf.ifc_req; + int i = 0; + while (i < ifconf.ifc_len) { + size_t len = sizeof(struct ifreq); + + DebugOnly rv = + ListInterfaceAddresses(fd, ifreq->ifr_name, aAddrMap); + NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "ListInterfaceAddresses failed"); + + ifreq = (struct ifreq*)((char*)ifreq + len); + i += len; + } + + return NS_OK; +} + +static nsresult ListInterfaceAddresses(int aFd, const char* aInterface, + AddrMapType& aAddrMap) { + struct ifreq ifreq; + memset(&ifreq, 0, sizeof(struct ifreq)); + strncpy(ifreq.ifr_name, aInterface, IFNAMSIZ - 1); + if (ioctl(aFd, SIOCGIFADDR, &ifreq) != 0) { + return NS_ERROR_FAILURE; + } + + char host[128]; + switch (ifreq.ifr_addr.sa_family) { + case AF_INET: + case AF_INET6: + getnameinfo(&ifreq.ifr_addr, sizeof(ifreq.ifr_addr), host, sizeof(host), + nullptr, 0, NI_NUMERICHOST); + break; + case AF_UNSPEC: + return NS_OK; + default: + // Unknown family. + return NS_OK; + } + + nsCString ifaceStr; + ifaceStr.AssignASCII(aInterface); + + nsCString addrStr; + addrStr.AssignASCII(host); + + aAddrMap.Put(ifaceStr, addrStr); + + return NS_OK; +} + +} // namespace mozilla::net -- cgit v1.2.3