2 * Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #define SOCKET_UTIL_H 1
20 #include <sys/types.h>
21 #include <sys/socket.h>
23 #include <netinet/in.h>
25 #include "openvswitch/types.h"
26 #include <netinet/ip.h>
28 int set_nonblocking(int fd);
29 int get_max_fds(void);
31 int lookup_ip(const char *host_name, struct in_addr *address);
32 int lookup_ipv6(const char *host_name, struct in6_addr *address);
34 int lookup_hostname(const char *host_name, struct in_addr *);
36 int get_socket_error(int sock);
37 int get_socket_rcvbuf(int sock);
38 int check_connection_completion(int fd);
39 int drain_rcvbuf(int fd);
40 void drain_fd(int fd, size_t n_packets);
41 int make_unix_socket(int style, bool nonblock, bool passcred,
42 const char *bind_path, const char *connect_path);
43 int get_unix_name_len(socklen_t sun_len);
44 ovs_be32 guess_netmask(ovs_be32 ip);
45 int get_null_fd(void);
47 bool inet_parse_active(const char *target, uint16_t default_port,
48 struct sockaddr_in *sinp);
49 int inet_open_active(int style, const char *target, uint16_t default_port,
50 struct sockaddr_in *sinp, int *fdp, uint8_t dscp);
52 bool inet_parse_passive(const char *target, int default_port,
53 struct sockaddr_in *sinp);
54 int inet_open_passive(int style, const char *target, int default_port,
55 struct sockaddr_in *sinp, uint8_t dscp);
57 int read_fully(int fd, void *, size_t, size_t *bytes_read);
58 int write_fully(int fd, const void *, size_t, size_t *bytes_written);
60 int fsync_parent_dir(const char *file_name);
61 int get_mtime(const char *file_name, struct timespec *mtime);
63 void xpipe(int fds[2]);
65 char *describe_fd(int fd);
67 /* Default value of dscp bits for connection between controller and manager.
68 * Value of IPTOS_PREC_INTERNETCONTROL = 0xc0 which is defined
69 * in <netinet/ip.h> is used. */
70 #define DSCP_DEFAULT (IPTOS_PREC_INTERNETCONTROL >> 2)
72 #endif /* socket-util.h */