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authorMatt A. Tobin <email@mattatobin.com>2020-02-22 20:10:23 -0500
committerwolfbeast <mcwerewolf@wolfbeast.com>2020-04-14 12:52:18 +0200
commit92edec6f587ae6b86c9b27947113997972ce0c1a (patch)
tree246706f86a7e5e3e086cf9ac83f7bdcec0055cee /netwerk/sctp/src/ifaddrs_android.cpp
parent2dea4edfd7cf9a760149da220e60dddb2b0b0d09 (diff)
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Issue #1053 - Remove android support from netwerk
Diffstat (limited to 'netwerk/sctp/src/ifaddrs_android.cpp')
-rw-r--r--netwerk/sctp/src/ifaddrs_android.cpp189
1 files changed, 0 insertions, 189 deletions
diff --git a/netwerk/sctp/src/ifaddrs_android.cpp b/netwerk/sctp/src/ifaddrs_android.cpp
deleted file mode 100644
index 78eb90a1a..000000000
--- a/netwerk/sctp/src/ifaddrs_android.cpp
+++ /dev/null
@@ -1,189 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "ifaddrs-android-ext.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include "ScopedFd.h"
-#include "LocalArray.h"
-
-// Returns a pointer to the first byte in the address data (which is
-// stored in network byte order).
-uint8_t* sockaddrBytes(int family, sockaddr_storage* ss) {
- if (family == AF_INET) {
- sockaddr_in* ss4 = reinterpret_cast<sockaddr_in*>(ss);
- return reinterpret_cast<uint8_t*>(&ss4->sin_addr);
- } else if (family == AF_INET6) {
- sockaddr_in6* ss6 = reinterpret_cast<sockaddr_in6*>(ss);
- return reinterpret_cast<uint8_t*>(&ss6->sin6_addr);
- }
- return NULL;
-}
-
-// Sadly, we can't keep the interface index for portability with BSD.
-// We'll have to keep the name instead, and re-query the index when
-// we need it later.
-bool ifa_setNameAndFlagsByIndex(ifaddrs *self, int interfaceIndex) {
- // Get the name.
- char buf[IFNAMSIZ];
- char* name = if_indextoname(interfaceIndex, buf);
- if (name == NULL) {
- return false;
- }
- self->ifa_name = new char[strlen(name) + 1];
- strcpy(self->ifa_name, name);
-
- // Get the flags.
- ScopedFd fd(socket(AF_INET, SOCK_DGRAM, 0));
- if (fd.get() == -1) {
- return false;
- }
- ifreq ifr;
- memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, name);
- int rc = ioctl(fd.get(), SIOCGIFFLAGS, &ifr);
- if (rc == -1) {
- return false;
- }
- self->ifa_flags = ifr.ifr_flags;
- return true;
-}
-
-// Netlink gives us the address family in the header, and the
-// sockaddr_in or sockaddr_in6 bytes as the payload. We need to
-// stitch the two bits together into the sockaddr that's part of
-// our portable interface.
-void ifa_setAddress(ifaddrs *self, int family, void* data, size_t byteCount) {
- // Set the address proper...
- sockaddr_storage* ss = new sockaddr_storage;
- memset(ss, 0, sizeof(*ss));
- self->ifa_addr = reinterpret_cast<sockaddr*>(ss);
- ss->ss_family = family;
- uint8_t* dst = sockaddrBytes(family, ss);
- memcpy(dst, data, byteCount);
-}
-
-// Netlink gives us the prefix length as a bit count. We need to turn
-// that into a BSD-compatible netmask represented by a sockaddr*.
-void ifa_setNetmask(ifaddrs *self, int family, size_t prefixLength) {
- // ...and work out the netmask from the prefix length.
- sockaddr_storage* ss = new sockaddr_storage;
- memset(ss, 0, sizeof(*ss));
- self->ifa_netmask = reinterpret_cast<sockaddr*>(ss);
- ss->ss_family = family;
- uint8_t* dst = sockaddrBytes(family, ss);
- memset(dst, 0xff, prefixLength / 8);
- if ((prefixLength % 8) != 0) {
- dst[prefixLength/8] = (0xff << (8 - (prefixLength % 8)));
- }
-}
-
-// FIXME: use iovec instead.
-struct addrReq_struct {
- nlmsghdr netlinkHeader;
- ifaddrmsg msg;
-};
-
-inline bool sendNetlinkMessage(int fd, const void* data, size_t byteCount) {
- ssize_t sentByteCount = TEMP_FAILURE_RETRY(send(fd, data, byteCount, 0));
- return (sentByteCount == static_cast<ssize_t>(byteCount));
-}
-
-inline ssize_t recvNetlinkMessage(int fd, char* buf, size_t byteCount) {
- return TEMP_FAILURE_RETRY(recv(fd, buf, byteCount, 0));
-}
-
-// Source-compatible with the BSD function.
-int getifaddrs(ifaddrs** result)
-{
- // Simplify cleanup for callers.
- *result = NULL;
-
- // Create a netlink socket.
- ScopedFd fd(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE));
- if (fd.get() < 0) {
- return -1;
- }
-
- // Ask for the address information.
- addrReq_struct addrRequest;
- memset(&addrRequest, 0, sizeof(addrRequest));
- addrRequest.netlinkHeader.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH;
- addrRequest.netlinkHeader.nlmsg_type = RTM_GETADDR;
- addrRequest.netlinkHeader.nlmsg_len = NLMSG_ALIGN(NLMSG_LENGTH(sizeof(addrRequest)));
- addrRequest.msg.ifa_family = AF_UNSPEC; // All families.
- addrRequest.msg.ifa_index = 0; // All interfaces.
- if (!sendNetlinkMessage(fd.get(), &addrRequest, addrRequest.netlinkHeader.nlmsg_len)) {
- return -1;
- }
-
- // Read the responses.
- LocalArray<0> buf(65536); // We don't necessarily have std::vector.
- ssize_t bytesRead;
- while ((bytesRead = recvNetlinkMessage(fd.get(), &buf[0], buf.size())) > 0) {
- nlmsghdr* hdr = reinterpret_cast<nlmsghdr*>(&buf[0]);
- for (; NLMSG_OK(hdr, (size_t)bytesRead); hdr = NLMSG_NEXT(hdr, bytesRead)) {
- switch (hdr->nlmsg_type) {
- case NLMSG_DONE:
- return 0;
- case NLMSG_ERROR:
- return -1;
- case RTM_NEWADDR:
- {
- ifaddrmsg* address = reinterpret_cast<ifaddrmsg*>(NLMSG_DATA(hdr));
- rtattr* rta = IFA_RTA(address);
- size_t ifaPayloadLength = IFA_PAYLOAD(hdr);
- while (RTA_OK(rta, ifaPayloadLength)) {
- if (rta->rta_type == IFA_LOCAL) {
- int family = address->ifa_family;
- if (family == AF_INET || family == AF_INET6) {
- ifaddrs *next = *result;
- *result = new ifaddrs;
- memset(*result, 0, sizeof(ifaddrs));
- (*result)->ifa_next = next;
- if (!ifa_setNameAndFlagsByIndex(*result, address->ifa_index)) {
- return -1;
- }
- ifa_setAddress(*result, family, RTA_DATA(rta), RTA_PAYLOAD(rta));
- ifa_setNetmask(*result, family, address->ifa_prefixlen);
- }
- }
- rta = RTA_NEXT(rta, ifaPayloadLength);
- }
- }
- break;
- }
- }
- }
- // We only get here if recv fails before we see a NLMSG_DONE.
- return -1;
-}
-
-// Source-compatible with the BSD function.
-void freeifaddrs(ifaddrs* addresses) {
- ifaddrs* self = addresses;
- while (self != NULL) {
- delete[] self->ifa_name;
- delete self->ifa_addr;
- delete self->ifa_netmask;
- ifaddrs* next = self->ifa_next;
- delete self;
- self = next;
- }
-}