diff options
Diffstat (limited to 'init/descriptors.cpp')
-rw-r--r-- | init/descriptors.cpp | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/init/descriptors.cpp b/init/descriptors.cpp deleted file mode 100644 index 62656872f..000000000 --- a/init/descriptors.cpp +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright (C) 2016 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 "descriptors.h" - -#include <ctype.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <unistd.h> - -#include <android-base/logging.h> -#include <android-base/stringprintf.h> -#include <android-base/strings.h> -#include <android-base/unique_fd.h> -#include <cutils/android_get_control_file.h> -#include <cutils/sockets.h> - -#include "util.h" - -namespace android { -namespace init { - -DescriptorInfo::DescriptorInfo(const std::string& name, const std::string& type, uid_t uid, - gid_t gid, int perm, const std::string& context) - : name_(name), type_(type), uid_(uid), gid_(gid), perm_(perm), context_(context) { -} - -DescriptorInfo::~DescriptorInfo() { -} - -std::ostream& operator<<(std::ostream& os, const DescriptorInfo& info) { - return os << " descriptors " << info.name_ << " " << info.type_ << " " << std::oct << info.perm_; -} - -bool DescriptorInfo::operator==(const DescriptorInfo& other) const { - return name_ == other.name_ && type_ == other.type_ && key() == other.key(); -} - -void DescriptorInfo::CreateAndPublish(const std::string& globalContext) const { - // Create - const std::string& contextStr = context_.empty() ? globalContext : context_; - int fd = Create(contextStr); - if (fd < 0) return; - - // Publish - std::string publishedName = key() + name_; - std::for_each(publishedName.begin(), publishedName.end(), - [] (char& c) { c = isalnum(c) ? c : '_'; }); - - std::string val = std::to_string(fd); - setenv(publishedName.c_str(), val.c_str(), 1); - - // make sure we don't close on exec - fcntl(fd, F_SETFD, 0); -} - -void DescriptorInfo::Clean() const { -} - -SocketInfo::SocketInfo(const std::string& name, const std::string& type, uid_t uid, - gid_t gid, int perm, const std::string& context) - : DescriptorInfo(name, type, uid, gid, perm, context) { -} - -void SocketInfo::Clean() const { - std::string path = android::base::StringPrintf("%s/%s", ANDROID_SOCKET_DIR, name().c_str()); - unlink(path.c_str()); -} - -int SocketInfo::Create(const std::string& context) const { - auto types = android::base::Split(type(), "+"); - int flags = - ((types[0] == "stream" ? SOCK_STREAM : (types[0] == "dgram" ? SOCK_DGRAM : SOCK_SEQPACKET))); - bool passcred = types.size() > 1 && types[1] == "passcred"; - return CreateSocket(name().c_str(), flags, passcred, perm(), uid(), gid(), context.c_str()); -} - -const std::string SocketInfo::key() const { - return ANDROID_SOCKET_ENV_PREFIX; -} - -FileInfo::FileInfo(const std::string& name, const std::string& type, uid_t uid, - gid_t gid, int perm, const std::string& context) - // defaults OK for uid,..., they are ignored for this class. - : DescriptorInfo(name, type, uid, gid, perm, context) { -} - -int FileInfo::Create(const std::string&) const { - int flags = (type() == "r") ? O_RDONLY : - (type() == "w") ? O_WRONLY : - O_RDWR; - - // Make sure we do not block on open (eg: devices can chose to block on - // carrier detect). Our intention is never to delay launch of a service - // for such a condition. The service can perform its own blocking on - // carrier detect. - android::base::unique_fd fd(TEMP_FAILURE_RETRY(open(name().c_str(), - flags | O_NONBLOCK))); - - if (fd < 0) { - PLOG(ERROR) << "Failed to open file '" << name().c_str() << "'"; - return -1; - } - - // Fixup as we set O_NONBLOCK for open, the intent for fd is to block reads. - fcntl(fd, F_SETFL, flags); - - LOG(INFO) << "Opened file '" << name().c_str() << "'" - << ", flags " << std::oct << flags << std::dec; - - return fd.release(); -} - -const std::string FileInfo::key() const { - return ANDROID_FILE_ENV_PREFIX; -} - -} // namespace init -} // namespace android |