e1bbc00124
TBR=rockot@chromium.org,tsepez@chromium.org http://crbug.com/625840 Review-Url: https://codereview.chromium.org/2118083002 Cr-Commit-Position: refs/heads/master@{#403786}
64 lines
2.7 KiB
C++
64 lines
2.7 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
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#define IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
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#include <stddef.h>
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#include <sys/types.h>
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#include "ipc/ipc_export.h"
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namespace base {
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class FilePath;
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} // namespace base
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namespace IPC {
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// Creates a UNIX-domain socket at |socket_name| and bind()s it, then listen()s
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// on it. If successful, |server_listen_fd| will be set to the new file
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// descriptor, and the function will return true. Otherwise returns false.
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//
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// This function also effectively performs `mkdir -p` on the dirname of
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// |socket_name| to ensure that all the directories up to |socket_name| exist.
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// As a result of which this function must be run on a thread that allows
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// blocking I/O, e.g. the FILE thread in Chrome's browser process.
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IPC_EXPORT bool CreateServerUnixDomainSocket(const base::FilePath& socket_name,
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int* server_listen_fd);
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// Opens a UNIX-domain socket at |socket_name| and connect()s to it. If
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// successful, |client_socket| will be set to the new file descriptor, and the
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// function will return true. Otherwise returns false.
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IPC_EXPORT bool CreateClientUnixDomainSocket(const base::FilePath& socket_name,
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int* client_socket);
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// Gets the effective user ID of the other end of the UNIX-domain socket
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// specified by |fd|. If successful, sets |peer_euid| to the uid, and returns
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// true. Otherwise returns false.
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IPC_EXPORT bool GetPeerEuid(int fd, uid_t* peer_euid);
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// Checks that the process on the other end of the UNIX domain socket
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// represented by |peer_fd| shares the same EUID as this process.
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IPC_EXPORT bool IsPeerAuthorized(int peer_fd);
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// Accepts a client attempting to connect to |server_listen_fd|, storing the
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// new file descriptor for the connection in |server_socket|.
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//
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// Returns false if |server_listen_fd| encounters an unrecoverable error.
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// Returns true if it's valid to keep listening on |server_listen_fd|. In this
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// case, it's possible that a connection wasn't successfully established; then,
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// |server_socket| will be set to -1.
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IPC_EXPORT bool ServerOnConnect(int server_listen_fd,
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int* server_socket);
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// The maximum length of the name of a socket for MODE_NAMED_SERVER or
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// MODE_NAMED_CLIENT if you want to pass in your own socket.
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// The standard size on linux is 108, mac is 104. To maintain consistency
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// across platforms we standardize on the smaller value.
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static const size_t kMaxSocketNameLength = 104;
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} // namespace IPC
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#endif // IPC_UNIX_DOMAIN_SOCKET_UTIL_H_
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