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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 */