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03467c88 | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
42f4e3c4 | 2 | |
c2f1db8f | 3 | #pragma once |
42f4e3c4 | 4 | |
a7334b09 LP |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2010 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
11 | under the terms of the GNU Lesser General Public License as published by |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
13 | (at your option) any later version. |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 18 | Lesser General Public License for more details. |
a7334b09 | 19 | |
5430f7f2 | 20 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
22 | ***/ | |
23 | ||
db73295a | 24 | #include <netinet/ether.h> |
71d35b6b | 25 | #include <netinet/in.h> |
11c3a366 TA |
26 | #include <stdbool.h> |
27 | #include <stddef.h> | |
71d35b6b | 28 | #include <sys/socket.h> |
11c3a366 | 29 | #include <sys/types.h> |
42f4e3c4 | 30 | #include <sys/un.h> |
7a22745a | 31 | #include <linux/netlink.h> |
e88bc795 | 32 | #include <linux/if_packet.h> |
42f4e3c4 LP |
33 | |
34 | #include "macro.h" | |
35 | #include "util.h" | |
36 | ||
f6144808 LP |
37 | union sockaddr_union { |
38 | struct sockaddr sa; | |
4d49b48c | 39 | struct sockaddr_in in; |
f6144808 LP |
40 | struct sockaddr_in6 in6; |
41 | struct sockaddr_un un; | |
7a22745a | 42 | struct sockaddr_nl nl; |
f6144808 | 43 | struct sockaddr_storage storage; |
e88bc795 | 44 | struct sockaddr_ll ll; |
f6144808 LP |
45 | }; |
46 | ||
542563ba | 47 | typedef struct SocketAddress { |
f6144808 | 48 | union sockaddr_union sockaddr; |
42f4e3c4 LP |
49 | |
50 | /* We store the size here explicitly due to the weird | |
51 | * sockaddr_un semantics for abstract sockets */ | |
52 | socklen_t size; | |
53 | ||
54 | /* Socket type, i.e. SOCK_STREAM, SOCK_DGRAM, ... */ | |
55 | int type; | |
7a22745a LP |
56 | |
57 | /* Socket protocol, IPPROTO_xxx, usually 0, except for netlink */ | |
58 | int protocol; | |
542563ba | 59 | } SocketAddress; |
42f4e3c4 | 60 | |
542563ba LP |
61 | typedef enum SocketAddressBindIPv6Only { |
62 | SOCKET_ADDRESS_DEFAULT, | |
63 | SOCKET_ADDRESS_BOTH, | |
c0120d99 LP |
64 | SOCKET_ADDRESS_IPV6_ONLY, |
65 | _SOCKET_ADDRESS_BIND_IPV6_ONLY_MAX, | |
66 | _SOCKET_ADDRESS_BIND_IPV6_ONLY_INVALID = -1 | |
542563ba | 67 | } SocketAddressBindIPv6Only; |
42f4e3c4 | 68 | |
542563ba | 69 | #define socket_address_family(a) ((a)->sockaddr.sa.sa_family) |
42f4e3c4 | 70 | |
542563ba | 71 | int socket_address_parse(SocketAddress *a, const char *s); |
7693146d | 72 | int socket_address_parse_and_warn(SocketAddress *a, const char *s); |
7a22745a | 73 | int socket_address_parse_netlink(SocketAddress *a, const char *s); |
542563ba | 74 | int socket_address_print(const SocketAddress *a, char **p); |
44a6b1b6 | 75 | int socket_address_verify(const SocketAddress *a) _pure_; |
bd1fe7c7 | 76 | int socket_address_unlink(SocketAddress *a); |
b5a0699f | 77 | |
44a6b1b6 | 78 | bool socket_address_can_accept(const SocketAddress *a) _pure_; |
4f2d528d | 79 | |
b5a0699f LP |
80 | int socket_address_listen( |
81 | const SocketAddress *a, | |
175a3d25 | 82 | int flags, |
b5a0699f LP |
83 | int backlog, |
84 | SocketAddressBindIPv6Only only, | |
85 | const char *bind_to_device, | |
54255c64 | 86 | bool reuse_port, |
4fd5948e | 87 | bool free_bind, |
6b6d2dee | 88 | bool transparent, |
b5a0699f LP |
89 | mode_t directory_mode, |
90 | mode_t socket_mode, | |
175a3d25 | 91 | const char *label); |
e0aa3726 | 92 | int make_socket_fd(int log_level, const char* address, int flags); |
42f4e3c4 | 93 | |
27ca8d7a | 94 | bool socket_address_is(const SocketAddress *a, const char *s, int type); |
7a22745a | 95 | bool socket_address_is_netlink(const SocketAddress *a, const char *s); |
a16e1123 | 96 | |
01e10de3 LP |
97 | bool socket_address_matches_fd(const SocketAddress *a, int fd); |
98 | ||
44a6b1b6 | 99 | bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) _pure_; |
a16e1123 | 100 | |
a57f7e2c | 101 | const char* socket_address_get_path(const SocketAddress *a); |
6e2ef85b | 102 | |
4d49b48c LP |
103 | bool socket_ipv6_is_supported(void); |
104 | ||
3b1c5241 SL |
105 | int sockaddr_port(const struct sockaddr *_sa) _pure_; |
106 | ||
107 | int sockaddr_pretty(const struct sockaddr *_sa, socklen_t salen, bool translate_ipv6, bool include_port, char **ret); | |
4d49b48c LP |
108 | int getpeername_pretty(int fd, char **ret); |
109 | int getsockname_pretty(int fd, char **ret); | |
110 | ||
b31f535c ZJS |
111 | int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret); |
112 | int getnameinfo_pretty(int fd, char **ret); | |
113 | ||
44a6b1b6 ZJS |
114 | const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_; |
115 | SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_; | |
c0120d99 | 116 | |
f8b69d1d | 117 | int netlink_family_to_string_alloc(int b, char **s); |
4d49b48c | 118 | int netlink_family_from_string(const char *s) _pure_; |
f01e5736 LP |
119 | |
120 | bool sockaddr_equal(const union sockaddr_union *a, const union sockaddr_union *b); | |
2583fbea LP |
121 | |
122 | int fd_inc_sndbuf(int fd, size_t n); | |
123 | int fd_inc_rcvbuf(int fd, size_t n); | |
124 | ||
125 | int ip_tos_to_string_alloc(int i, char **s); | |
126 | int ip_tos_from_string(const char *s); | |
127 | ||
128 | int getpeercred(int fd, struct ucred *ucred); | |
129 | int getpeersec(int fd, char **ret); | |
130 | ||
131 | int send_one_fd(int transport_fd, int fd, int flags); | |
132 | int receive_one_fd(int transport_fd, int flags); | |
8f328d36 LP |
133 | |
134 | #define CMSG_FOREACH(cmsg, mh) \ | |
135 | for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg))) |