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Commit | Line | Data |
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c34b65c7 | 1 | /* |
c2e3cbaf | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc. |
c34b65c7 BP |
3 | * |
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: | |
7 | * | |
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. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include "stream.h" | |
c34b65c7 BP |
19 | #include <errno.h> |
20 | #include <inttypes.h> | |
21 | #include <netdb.h> | |
22 | #include <poll.h> | |
3762274e | 23 | #include <sys/socket.h> |
c34b65c7 BP |
24 | #include <sys/types.h> |
25 | #include <sys/un.h> | |
26 | #include <stdlib.h> | |
27 | #include <string.h> | |
28 | #include <unistd.h> | |
29 | #include "packets.h" | |
30 | #include "poll-loop.h" | |
31 | #include "socket-util.h" | |
2c487bc8 | 32 | #include "dirs.h" |
c34b65c7 BP |
33 | #include "util.h" |
34 | #include "stream-provider.h" | |
35 | #include "stream-fd.h" | |
e6211adc | 36 | #include "openvswitch/vlog.h" |
5136ce49 | 37 | |
d98e6007 | 38 | VLOG_DEFINE_THIS_MODULE(stream_unix); |
c34b65c7 BP |
39 | |
40 | /* Active UNIX socket. */ | |
41 | ||
c34b65c7 | 42 | static int |
f125905c MM |
43 | unix_open(const char *name, char *suffix, struct stream **streamp, |
44 | uint8_t dscp OVS_UNUSED) | |
c34b65c7 | 45 | { |
2c487bc8 | 46 | char *connect_path; |
c34b65c7 BP |
47 | int fd; |
48 | ||
2c487bc8 | 49 | connect_path = abs_file_name(ovs_rundir(), suffix); |
5ca92d1d | 50 | fd = make_unix_socket(SOCK_STREAM, true, NULL, connect_path); |
2c487bc8 | 51 | |
c34b65c7 | 52 | if (fd < 0) { |
10a89ef0 BP |
53 | VLOG_DBG("%s: connection failed (%s)", |
54 | connect_path, ovs_strerror(-fd)); | |
2c487bc8 | 55 | free(connect_path); |
c34b65c7 BP |
56 | return -fd; |
57 | } | |
58 | ||
2c487bc8 | 59 | free(connect_path); |
b7cefbf7 GS |
60 | return new_fd_stream(name, fd, check_connection_completion(fd), |
61 | AF_UNIX, streamp); | |
c34b65c7 BP |
62 | } |
63 | ||
da327b18 | 64 | const struct stream_class unix_stream_class = { |
c34b65c7 | 65 | "unix", /* name */ |
f1936eb6 | 66 | false, /* needs_probes */ |
c34b65c7 BP |
67 | unix_open, /* open */ |
68 | NULL, /* close */ | |
69 | NULL, /* connect */ | |
70 | NULL, /* recv */ | |
71 | NULL, /* send */ | |
539e96f6 BP |
72 | NULL, /* run */ |
73 | NULL, /* run_wait */ | |
c34b65c7 BP |
74 | NULL, /* wait */ |
75 | }; | |
76 | \f | |
77 | /* Passive UNIX socket. */ | |
78 | ||
e731d71b AS |
79 | static int punix_accept(int fd, const struct sockaddr_storage *ss, |
80 | size_t ss_len, struct stream **streamp); | |
c34b65c7 BP |
81 | |
82 | static int | |
c69ee87c | 83 | punix_open(const char *name OVS_UNUSED, char *suffix, |
f125905c | 84 | struct pstream **pstreamp, uint8_t dscp OVS_UNUSED) |
c34b65c7 | 85 | { |
2c487bc8 | 86 | char *bind_path; |
c34b65c7 BP |
87 | int fd, error; |
88 | ||
2c487bc8 PR |
89 | bind_path = abs_file_name(ovs_rundir(), suffix); |
90 | fd = make_unix_socket(SOCK_STREAM, true, bind_path, NULL); | |
c34b65c7 | 91 | if (fd < 0) { |
10a89ef0 | 92 | VLOG_ERR("%s: binding failed: %s", bind_path, ovs_strerror(errno)); |
2c487bc8 | 93 | free(bind_path); |
c34b65c7 BP |
94 | return errno; |
95 | } | |
96 | ||
29058c4e | 97 | if (listen(fd, 64) < 0) { |
c34b65c7 | 98 | error = errno; |
10a89ef0 | 99 | VLOG_ERR("%s: listen: %s", name, ovs_strerror(error)); |
c34b65c7 | 100 | close(fd); |
2c487bc8 | 101 | free(bind_path); |
c34b65c7 BP |
102 | return error; |
103 | } | |
104 | ||
c2e3cbaf | 105 | return new_fd_pstream(name, fd, punix_accept, bind_path, pstreamp); |
c34b65c7 BP |
106 | } |
107 | ||
108 | static int | |
e731d71b | 109 | punix_accept(int fd, const struct sockaddr_storage *ss, size_t ss_len, |
c34b65c7 BP |
110 | struct stream **streamp) |
111 | { | |
e731d71b AS |
112 | const struct sockaddr_un *sun = (const struct sockaddr_un *) ss; |
113 | int name_len = get_unix_name_len(ss_len); | |
c34b65c7 BP |
114 | char name[128]; |
115 | ||
116 | if (name_len > 0) { | |
117 | snprintf(name, sizeof name, "unix:%.*s", name_len, sun->sun_path); | |
118 | } else { | |
119 | strcpy(name, "unix"); | |
120 | } | |
b7cefbf7 | 121 | return new_fd_stream(name, fd, 0, AF_UNIX, streamp); |
c34b65c7 BP |
122 | } |
123 | ||
da327b18 | 124 | const struct pstream_class punix_pstream_class = { |
c34b65c7 | 125 | "punix", |
f1936eb6 | 126 | false, |
c34b65c7 BP |
127 | punix_open, |
128 | NULL, | |
129 | NULL, | |
f89b7ce5 | 130 | NULL, |
c34b65c7 BP |
131 | }; |
132 |