1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <netinet/ether.h>
#include <netinet/in.h>
#include <stdbool.h>
#include <stddef.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <linux/netlink.h>
#include <linux/if_packet.h>
#include "macro.h"
#include "util.h"
union sockaddr_union {
struct sockaddr sa;
struct sockaddr_in in;
struct sockaddr_in6 in6;
struct sockaddr_un un;
struct sockaddr_nl nl;
struct sockaddr_storage storage;
struct sockaddr_ll ll;
};
typedef struct SocketAddress {
union sockaddr_union sockaddr;
/* We store the size here explicitly due to the weird
* sockaddr_un semantics for abstract sockets */
socklen_t size;
/* Socket type, i.e. SOCK_STREAM, SOCK_DGRAM, ... */
int type;
/* Socket protocol, IPPROTO_xxx, usually 0, except for netlink */
int protocol;
} SocketAddress;
typedef enum SocketAddressBindIPv6Only {
SOCKET_ADDRESS_DEFAULT,
SOCKET_ADDRESS_BOTH,
SOCKET_ADDRESS_IPV6_ONLY,
_SOCKET_ADDRESS_BIND_IPV6_ONLY_MAX,
_SOCKET_ADDRESS_BIND_IPV6_ONLY_INVALID = -1
} SocketAddressBindIPv6Only;
#define socket_address_family(a) ((a)->sockaddr.sa.sa_family)
int socket_address_parse(SocketAddress *a, const char *s);
int socket_address_parse_and_warn(SocketAddress *a, const char *s);
int socket_address_parse_netlink(SocketAddress *a, const char *s);
int socket_address_print(const SocketAddress *a, char **p);
int socket_address_verify(const SocketAddress *a) _pure_;
int socket_address_unlink(SocketAddress *a);
bool socket_address_can_accept(const SocketAddress *a) _pure_;
int socket_address_listen(
const SocketAddress *a,
int flags,
int backlog,
SocketAddressBindIPv6Only only,
const char *bind_to_device,
bool reuse_port,
bool free_bind,
bool transparent,
mode_t directory_mode,
mode_t socket_mode,
const char *label);
int make_socket_fd(int log_level, const char* address, int flags);
bool socket_address_is(const SocketAddress *a, const char *s, int type);
bool socket_address_is_netlink(const SocketAddress *a, const char *s);
bool socket_address_matches_fd(const SocketAddress *a, int fd);
bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) _pure_;
const char* socket_address_get_path(const SocketAddress *a);
bool socket_ipv6_is_supported(void);
int sockaddr_port(const struct sockaddr *_sa) _pure_;
int sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_ipv6, bool include_port, char **ret);
int getpeername_pretty(int fd, bool include_port, char **ret);
int getsockname_pretty(int fd, char **ret);
int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret);
int getnameinfo_pretty(int fd, char **ret);
const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_;
SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_;
int netlink_family_to_string_alloc(int b, char **s);
int netlink_family_from_string(const char *s) _pure_;
bool sockaddr_equal(const union sockaddr_union *a, const union sockaddr_union *b);
int fd_inc_sndbuf(int fd, size_t n);
int fd_inc_rcvbuf(int fd, size_t n);
int ip_tos_to_string_alloc(int i, char **s);
int ip_tos_from_string(const char *s);
int getpeercred(int fd, struct ucred *ucred);
int getpeersec(int fd, char **ret);
int send_one_fd(int transport_fd, int fd, int flags);
int receive_one_fd(int transport_fd, int flags);
#define CMSG_FOREACH(cmsg, mh) \
for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg)))
|
