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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* 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 "RilConnector.h"
#include <fcntl.h>
#include <sys/socket.h>
#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, MOZ_COUNT_DTOR
#include "nsThreadUtils.h" // For NS_IsMainThread.
#ifdef AF_INET
#include <arpa/inet.h>
#include <netinet/in.h>
#endif
#ifdef AF_UNIX
#include <sys/un.h>
#endif
namespace mozilla {
namespace ipc {
static const uint16_t RIL_TEST_PORT = 6200;
RilConnector::RilConnector(const nsACString& aAddressString,
unsigned long aClientId)
: mAddressString(aAddressString)
, mClientId(aClientId)
{
MOZ_COUNT_CTOR_INHERITED(RilConnector, UnixSocketConnector);
}
RilConnector::~RilConnector()
{
MOZ_COUNT_DTOR_INHERITED(RilConnector, UnixSocketConnector);
}
nsresult
RilConnector::CreateSocket(int aDomain, int& aFd) const
{
aFd = socket(aDomain, SOCK_STREAM, 0);
if (aFd < 0) {
NS_WARNING("Could not open RIL socket!");
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
RilConnector::SetSocketFlags(int aFd) const
{
static const int sReuseAddress = 1;
// Set close-on-exec bit.
int flags = TEMP_FAILURE_RETRY(fcntl(aFd, F_GETFD));
if (flags < 0) {
return NS_ERROR_FAILURE;
}
flags |= FD_CLOEXEC;
int res = TEMP_FAILURE_RETRY(fcntl(aFd, F_SETFD, flags));
if (res < 0) {
return NS_ERROR_FAILURE;
}
// Set non-blocking status flag.
flags = TEMP_FAILURE_RETRY(fcntl(aFd, F_GETFL));
if (flags < 0) {
return NS_ERROR_FAILURE;
}
flags |= O_NONBLOCK;
res = TEMP_FAILURE_RETRY(fcntl(aFd, F_SETFL, flags));
if (res < 0) {
return NS_ERROR_FAILURE;
}
// Set socket addr to be reused even if kernel is still waiting to close.
res = setsockopt(aFd, SOL_SOCKET, SO_REUSEADDR, &sReuseAddress,
sizeof(sReuseAddress));
if (res < 0) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
RilConnector::CreateAddress(int aDomain,
struct sockaddr& aAddress,
socklen_t& aAddressLength) const
{
switch (aDomain) {
#ifdef AF_UNIX
case AF_UNIX: {
struct sockaddr_un* address =
reinterpret_cast<struct sockaddr_un*>(&aAddress);
address->sun_family = aDomain;
size_t siz = mAddressString.Length() + 1;
if (siz > sizeof(address->sun_path)) {
NS_WARNING("Address too long for socket struct!");
return NS_ERROR_FAILURE;
}
memcpy(address->sun_path, mAddressString.get(), siz);
aAddressLength = offsetof(struct sockaddr_un, sun_path) + siz;
}
break;
#endif
#ifdef AF_INET
case AF_INET: {
struct sockaddr_in* address =
reinterpret_cast<struct sockaddr_in*>(&aAddress);
address->sin_family = aDomain;
address->sin_port = htons(RIL_TEST_PORT + mClientId);
address->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
aAddressLength = sizeof(*address);
}
break;
#endif
default:
NS_WARNING("Address family not handled by connector!");
return NS_ERROR_FAILURE;
}
return NS_OK;
}
// |UnixSocketConnector|
nsresult
RilConnector::ConvertAddressToString(const struct sockaddr& aAddress,
socklen_t aAddressLength,
nsACString& aAddressString)
{
#ifdef AF_UNIX
if (aAddress.sa_family == AF_UNIX) {
const struct sockaddr_un* un =
reinterpret_cast<const struct sockaddr_un*>(&aAddress);
size_t len = aAddressLength - offsetof(struct sockaddr_un, sun_path);
aAddressString.Assign(un->sun_path, len);
} else
#endif
#ifdef AF_INET
if (aAddress.sa_family == AF_INET) {
const struct sockaddr_in* in =
reinterpret_cast<const struct sockaddr_in*>(&aAddress);
aAddressString.Assign(nsDependentCString(inet_ntoa(in->sin_addr)));
} else
#endif
{
NS_WARNING("Address family not handled by connector!");
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
RilConnector::CreateListenSocket(struct sockaddr* aAddress,
socklen_t* aAddressLength,
int& aListenFd)
{
MOZ_CRASH("|RilConnector| does not support listening sockets.");
}
nsresult
RilConnector::AcceptStreamSocket(int aListenFd,
struct sockaddr* aAddress,
socklen_t* aAddressLen,
int& aStreamFd)
{
MOZ_CRASH("|RilConnector| does not support accepting sockets.");
}
nsresult
RilConnector::CreateStreamSocket(struct sockaddr* aAddress,
socklen_t* aAddressLength,
int& aStreamFd)
{
static const int sDomain = AF_INET;
ScopedClose fd;
nsresult rv = CreateSocket(sDomain, fd.rwget());
if (NS_FAILED(rv)) {
return rv;
}
rv = SetSocketFlags(fd);
if (NS_FAILED(rv)) {
return rv;
}
if (aAddress && aAddressLength) {
rv = CreateAddress(sDomain, *aAddress, *aAddressLength);
if (NS_FAILED(rv)) {
return rv;
}
}
aStreamFd = fd.forget();
return NS_OK;
}
nsresult
RilConnector::Duplicate(UnixSocketConnector*& aConnector)
{
aConnector = new RilConnector(*this);
return NS_OK;
}
}
}
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