Index: ipc/unix_domain_socket_util.cc |
diff --git a/ipc/unix_domain_socket_util.cc b/ipc/unix_domain_socket_util.cc |
deleted file mode 100644 |
index d6f5e59282ee1373fec0ffa59e874719452c574f..0000000000000000000000000000000000000000 |
--- a/ipc/unix_domain_socket_util.cc |
+++ /dev/null |
@@ -1,214 +0,0 @@ |
-// Copyright 2013 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#include "ipc/unix_domain_socket_util.h" |
- |
-#include <errno.h> |
-#include <sys/socket.h> |
-#include <sys/un.h> |
-#include <unistd.h> |
- |
-#include "base/files/file_path.h" |
-#include "base/files/file_util.h" |
-#include "base/files/scoped_file.h" |
-#include "base/logging.h" |
-#include "base/posix/eintr_wrapper.h" |
-#include "build/build_config.h" |
- |
-namespace IPC { |
- |
-// Verify that kMaxSocketNameLength is a decent size. |
-static_assert(sizeof(((sockaddr_un*)0)->sun_path) >= kMaxSocketNameLength, |
- "sun_path is too long."); |
- |
-namespace { |
- |
-// This function fills in |unix_addr| with the appropriate data for the socket, |
-// and sets |unix_addr_len| to the length of the data therein. |
-// Returns true on success, or false on failure (typically because |socket_name| |
-// violated the naming rules). |
-bool MakeUnixAddrForPath(const std::string& socket_name, |
- struct sockaddr_un* unix_addr, |
- size_t* unix_addr_len) { |
- DCHECK(unix_addr); |
- DCHECK(unix_addr_len); |
- |
- if (socket_name.length() == 0) { |
- LOG(ERROR) << "Empty socket name provided for unix socket address."; |
- return false; |
- } |
- // We reject socket_name.length() == kMaxSocketNameLength to make room for |
- // the NUL terminator at the end of the string. |
- if (socket_name.length() >= kMaxSocketNameLength) { |
- LOG(ERROR) << "Socket name too long: " << socket_name; |
- return false; |
- } |
- |
- // Create unix_addr structure. |
- memset(unix_addr, 0, sizeof(struct sockaddr_un)); |
- unix_addr->sun_family = AF_UNIX; |
- strncpy(unix_addr->sun_path, socket_name.c_str(), kMaxSocketNameLength); |
- *unix_addr_len = |
- offsetof(struct sockaddr_un, sun_path) + socket_name.length(); |
- return true; |
-} |
- |
-// This functions creates a unix domain socket, and set it as non-blocking. |
-// If successful, |out_fd| will be set to the new file descriptor, and the |
-// function will return true. Otherwise returns false. |
-bool CreateUnixDomainSocket(base::ScopedFD* out_fd) { |
- DCHECK(out_fd); |
- |
- // Create the unix domain socket. |
- base::ScopedFD fd(socket(AF_UNIX, SOCK_STREAM, 0)); |
- if (!fd.is_valid()) { |
- PLOG(ERROR) << "Failed to create AF_UNIX socket."; |
- return false; |
- } |
- |
- // Now set it as non-blocking. |
- if (!base::SetNonBlocking(fd.get())) { |
- PLOG(ERROR) << "base::SetNonBlocking() failed " << fd.get(); |
- return false; |
- } |
- |
- fd.swap(*out_fd); |
- |
- return true; |
-} |
- |
-bool IsRecoverableError() { |
- return errno == ECONNABORTED || errno == EMFILE || errno == ENFILE || |
- errno == ENOMEM || errno == ENOBUFS; |
-} |
- |
-} // namespace |
- |
-bool CreateServerUnixDomainSocket(const base::FilePath& socket_path, |
- int* server_listen_fd) { |
- DCHECK(server_listen_fd); |
- |
- // Make sure the path we need exists. |
- base::FilePath socket_dir = socket_path.DirName(); |
- if (!base::CreateDirectory(socket_dir)) { |
- LOG(ERROR) << "Couldn't create directory: " << socket_dir.value(); |
- return false; |
- } |
- |
- const std::string socket_name = socket_path.value(); |
- |
- // Delete any old FS instances. |
- if (unlink(socket_name.c_str()) < 0 && errno != ENOENT) { |
- PLOG(ERROR) << "unlink " << socket_name; |
- return false; |
- } |
- |
- struct sockaddr_un unix_addr; |
- size_t unix_addr_len; |
- if (!MakeUnixAddrForPath(socket_name, &unix_addr, &unix_addr_len)) |
- return false; |
- |
- base::ScopedFD fd; |
- if (!CreateUnixDomainSocket(&fd)) |
- return false; |
- |
- // Bind the socket. |
- if (bind(fd.get(), reinterpret_cast<const sockaddr*>(&unix_addr), |
- unix_addr_len) < 0) { |
- PLOG(ERROR) << "bind " << socket_name; |
- return false; |
- } |
- |
- // Start listening on the socket. |
- if (listen(fd.get(), SOMAXCONN) < 0) { |
- PLOG(ERROR) << "listen " << socket_name; |
- unlink(socket_name.c_str()); |
- return false; |
- } |
- |
- *server_listen_fd = fd.release(); |
- return true; |
-} |
- |
-bool CreateClientUnixDomainSocket(const base::FilePath& socket_path, |
- int* client_socket) { |
- DCHECK(client_socket); |
- |
- struct sockaddr_un unix_addr; |
- size_t unix_addr_len; |
- if (!MakeUnixAddrForPath(socket_path.value(), &unix_addr, &unix_addr_len)) |
- return false; |
- |
- base::ScopedFD fd; |
- if (!CreateUnixDomainSocket(&fd)) |
- return false; |
- |
- if (HANDLE_EINTR(connect(fd.get(), reinterpret_cast<sockaddr*>(&unix_addr), |
- unix_addr_len)) < 0) { |
- PLOG(ERROR) << "connect " << socket_path.value(); |
- return false; |
- } |
- |
- *client_socket = fd.release(); |
- return true; |
-} |
- |
-bool GetPeerEuid(int fd, uid_t* peer_euid) { |
- DCHECK(peer_euid); |
-#if defined(OS_MACOSX) || defined(OS_OPENBSD) || defined(OS_FREEBSD) |
- uid_t socket_euid; |
- gid_t socket_gid; |
- if (getpeereid(fd, &socket_euid, &socket_gid) < 0) { |
- PLOG(ERROR) << "getpeereid " << fd; |
- return false; |
- } |
- *peer_euid = socket_euid; |
- return true; |
-#else |
- struct ucred cred; |
- socklen_t cred_len = sizeof(cred); |
- if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &cred, &cred_len) < 0) { |
- PLOG(ERROR) << "getsockopt " << fd; |
- return false; |
- } |
- if (static_cast<unsigned>(cred_len) < sizeof(cred)) { |
- NOTREACHED() << "Truncated ucred from SO_PEERCRED?"; |
- return false; |
- } |
- *peer_euid = cred.uid; |
- return true; |
-#endif |
-} |
- |
-bool IsPeerAuthorized(int peer_fd) { |
- uid_t peer_euid; |
- if (!GetPeerEuid(peer_fd, &peer_euid)) |
- return false; |
- if (peer_euid != geteuid()) { |
- DLOG(ERROR) << "Client euid is not authorised"; |
- return false; |
- } |
- return true; |
-} |
- |
-bool ServerOnConnect(int server_listen_fd, int* server_socket) { |
- DCHECK(server_socket); |
- *server_socket = -1; |
- |
- base::ScopedFD accept_fd(HANDLE_EINTR(accept(server_listen_fd, NULL, 0))); |
- if (!accept_fd.is_valid()) |
- return IsRecoverableError(); |
- |
- if (!base::SetNonBlocking(accept_fd.get())) { |
- PLOG(ERROR) << "base::SetNonBlocking() failed " << accept_fd.get(); |
- // It's safe to keep listening on |server_listen_fd| even if the attempt to |
- // set O_NONBLOCK failed on the client fd. |
- return true; |
- } |
- |
- *server_socket = accept_fd.release(); |
- return true; |
-} |
- |
-} // namespace IPC |