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064af421 | 1 | /* |
e731d71b | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc. |
064af421 | 3 | * |
a14bc59f BP |
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: | |
064af421 | 7 | * |
a14bc59f BP |
8 | * http://www.apache.org/licenses/LICENSE-2.0 |
9 | * | |
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. | |
064af421 BP |
15 | */ |
16 | ||
17 | #ifndef SOCKET_UTIL_H | |
18 | #define SOCKET_UTIL_H 1 | |
19 | ||
0f0b5401 | 20 | #include <errno.h> |
064af421 | 21 | #include <sys/types.h> |
8e47be77 | 22 | #include <sys/socket.h> |
72af4a85 | 23 | #include <sys/time.h> |
064af421 BP |
24 | #include <netinet/in.h> |
25 | #include <stdbool.h> | |
dbba996b | 26 | #include "openvswitch/types.h" |
14235530 | 27 | #include <netinet/in_systm.h> |
f125905c | 28 | #include <netinet/ip.h> |
064af421 BP |
29 | |
30 | int set_nonblocking(int fd); | |
a0505c49 | 31 | void xset_nonblocking(int fd); |
6b9c1eab | 32 | int set_dscp(int fd, uint8_t dscp); |
a0505c49 | 33 | |
064af421 | 34 | int lookup_ip(const char *host_name, struct in_addr *address); |
d31f1109 | 35 | int lookup_ipv6(const char *host_name, struct in6_addr *address); |
13f2ef97 BP |
36 | |
37 | int lookup_hostname(const char *host_name, struct in_addr *); | |
38 | ||
c1c19657 | 39 | int get_socket_rcvbuf(int sock); |
064af421 | 40 | int check_connection_completion(int fd); |
5d5ffe9c | 41 | #ifndef _WIN32 |
064af421 | 42 | int drain_rcvbuf(int fd); |
5d5ffe9c | 43 | #endif |
064af421 | 44 | void drain_fd(int fd, size_t n_packets); |
7ff04d92 | 45 | #ifndef _WIN32 |
5ca92d1d | 46 | int make_unix_socket(int style, bool nonblock, |
064af421 BP |
47 | const char *bind_path, const char *connect_path); |
48 | int get_unix_name_len(socklen_t sun_len); | |
7ff04d92 | 49 | #endif |
dbba996b | 50 | ovs_be32 guess_netmask(ovs_be32 ip); |
064af421 | 51 | |
52f8a75e | 52 | bool inet_parse_active(const char *target, uint16_t default_port, |
e731d71b | 53 | struct sockaddr_storage *ssp); |
4f2eb9a7 | 54 | int inet_open_active(int style, const char *target, uint16_t default_port, |
e731d71b | 55 | struct sockaddr_storage *ssp, int *fdp, uint8_t dscp); |
d98fa503 | 56 | |
995337c4 | 57 | bool inet_parse_passive(const char *target, int default_port, |
e731d71b | 58 | struct sockaddr_storage *ssp); |
36775dad | 59 | int inet_open_passive(int style, const char *target, int default_port, |
e731d71b | 60 | struct sockaddr_storage *ssp, uint8_t dscp); |
78ff0270 | 61 | |
064af421 BP |
62 | int read_fully(int fd, void *, size_t, size_t *bytes_read); |
63 | int write_fully(int fd, const void *, size_t, size_t *bytes_written); | |
64 | ||
8e71cf88 | 65 | int fsync_parent_dir(const char *file_name); |
26efd256 | 66 | int get_mtime(const char *file_name, struct timespec *mtime); |
8e71cf88 | 67 | |
a19a3a9f | 68 | #ifndef _WIN32 |
279c9e03 | 69 | void xpipe(int fds[2]); |
c0d95206 | 70 | void xpipe_nonblocking(int fds[2]); |
a19a3a9f | 71 | #endif |
279c9e03 | 72 | |
f89ffb0e BP |
73 | char *describe_fd(int fd); |
74 | ||
f125905c MM |
75 | /* Default value of dscp bits for connection between controller and manager. |
76 | * Value of IPTOS_PREC_INTERNETCONTROL = 0xc0 which is defined | |
cea15768 EJ |
77 | * in <netinet/ip.h> is used. */ |
78 | #define DSCP_DEFAULT (IPTOS_PREC_INTERNETCONTROL >> 2) | |
f125905c | 79 | |
866f3e67 | 80 | #ifndef _WIN32 |
259e0b1a BP |
81 | /* Helpers for calling ioctl() on an AF_INET socket. */ |
82 | struct ifreq; | |
83 | int af_inet_ioctl(unsigned long int command, const void *arg); | |
84 | int af_inet_ifreq_ioctl(const char *name, struct ifreq *, | |
85 | unsigned long int cmd, const char *cmd_name); | |
866f3e67 | 86 | #endif |
259e0b1a | 87 | |
e731d71b AS |
88 | /* Functions for working with sockaddr_storage that might contain an IPv4 or |
89 | * IPv6 address. */ | |
90 | uint16_t ss_get_port(const struct sockaddr_storage *); | |
91 | #define SS_NTOP_BUFSIZE (1 + INET6_ADDRSTRLEN + 1) | |
92 | char *ss_format_address(const struct sockaddr_storage *, | |
93 | char *buf, size_t bufsize); | |
94 | size_t ss_length(const struct sockaddr_storage *); | |
b26f46a4 | 95 | const char *sock_strerror(int error); |
e731d71b | 96 | |
5ea1366b GS |
97 | #ifdef _WIN32 |
98 | /* Windows defines the 'optval' argument as char * instead of void *. */ | |
99 | #define setsockopt(sock, level, optname, optval, optlen) \ | |
100 | rpl_setsockopt(sock, level, optname, optval, optlen) | |
101 | static inline int rpl_setsockopt(int sock, int level, int optname, | |
102 | const void *optval, socklen_t optlen) | |
103 | { | |
104 | return (setsockopt)(sock, level, optname, optval, optlen); | |
105 | } | |
9390ef7f GS |
106 | |
107 | #define getsockopt(sock, level, optname, optval, optlen) \ | |
108 | rpl_getsockopt(sock, level, optname, optval, optlen) | |
109 | static inline int rpl_getsockopt(int sock, int level, int optname, | |
110 | void *optval, socklen_t *optlen) | |
111 | { | |
112 | return (getsockopt)(sock, level, optname, optval, optlen); | |
113 | } | |
5ea1366b GS |
114 | #endif |
115 | ||
0f0b5401 GS |
116 | /* In Windows platform, errno is not set for socket calls. |
117 | * The last error has to be gotten from WSAGetLastError(). */ | |
118 | static inline int sock_errno(void) | |
119 | { | |
120 | #ifdef _WIN32 | |
121 | return WSAGetLastError(); | |
122 | #else | |
123 | return errno; | |
124 | #endif | |
125 | } | |
126 | ||
7009a594 GS |
127 | #ifndef _WIN32 |
128 | #define closesocket close | |
129 | #endif | |
130 | ||
064af421 | 131 | #endif /* socket-util.h */ |