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Commit | Line | Data |
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c34b65c7 | 1 | /* |
c2e3cbaf | 2 | * Copyright (c) 2008, 2009, 2010, 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" | |
19 | #include <errno.h> | |
20 | #include <inttypes.h> | |
21 | #include <sys/types.h> | |
22 | #include <netinet/in.h> | |
e731d71b | 23 | #include <netdb.h> |
c34b65c7 BP |
24 | #include <stdlib.h> |
25 | #include <string.h> | |
3762274e | 26 | #include <sys/socket.h> |
c34b65c7 | 27 | #include <unistd.h> |
3e8a2ad1 | 28 | #include "openvswitch/dynamic-string.h" |
c34b65c7 BP |
29 | #include "packets.h" |
30 | #include "socket-util.h" | |
31 | #include "util.h" | |
32 | #include "stream-provider.h" | |
33 | #include "stream-fd.h" | |
e6211adc | 34 | #include "openvswitch/vlog.h" |
5136ce49 | 35 | |
d98e6007 | 36 | VLOG_DEFINE_THIS_MODULE(stream_tcp); |
c34b65c7 BP |
37 | |
38 | /* Active TCP. */ | |
39 | ||
40 | static int | |
41 | new_tcp_stream(const char *name, int fd, int connect_status, | |
a8d81967 | 42 | struct stream **streamp) |
c34b65c7 | 43 | { |
b7cefbf7 GS |
44 | if (connect_status == 0) { |
45 | setsockopt_tcp_nodelay(fd); | |
c34b65c7 BP |
46 | } |
47 | ||
b7cefbf7 | 48 | return new_fd_stream(name, fd, connect_status, AF_INET, streamp); |
c34b65c7 BP |
49 | } |
50 | ||
51 | static int | |
f125905c | 52 | tcp_open(const char *name, char *suffix, struct stream **streamp, uint8_t dscp) |
c34b65c7 | 53 | { |
c34b65c7 BP |
54 | int fd, error; |
55 | ||
a8d81967 | 56 | error = inet_open_active(SOCK_STREAM, suffix, 0, NULL, &fd, dscp); |
c34b65c7 | 57 | if (fd >= 0) { |
a8d81967 | 58 | return new_tcp_stream(name, fd, error, streamp); |
c34b65c7 | 59 | } else { |
10a89ef0 | 60 | VLOG_ERR("%s: connect: %s", name, ovs_strerror(error)); |
c34b65c7 BP |
61 | return error; |
62 | } | |
63 | } | |
64 | ||
da327b18 | 65 | const struct stream_class tcp_stream_class = { |
c34b65c7 | 66 | "tcp", /* name */ |
f1936eb6 | 67 | true, /* needs_probes */ |
c34b65c7 BP |
68 | tcp_open, /* open */ |
69 | NULL, /* close */ | |
70 | NULL, /* connect */ | |
71 | NULL, /* recv */ | |
72 | NULL, /* send */ | |
539e96f6 BP |
73 | NULL, /* run */ |
74 | NULL, /* run_wait */ | |
c34b65c7 BP |
75 | NULL, /* wait */ |
76 | }; | |
77 | \f | |
78 | /* Passive TCP. */ | |
79 | ||
e731d71b AS |
80 | static int ptcp_accept(int fd, const struct sockaddr_storage *, |
81 | size_t, struct stream **streamp); | |
c34b65c7 BP |
82 | |
83 | static int | |
01420a2c GS |
84 | new_pstream(char *suffix, const char *name, struct pstream **pstreamp, |
85 | int dscp, char *unlink_path, bool kernel_print_port) | |
c34b65c7 | 86 | { |
e731d71b AS |
87 | char bound_name[SS_NTOP_BUFSIZE + 16]; |
88 | char addrbuf[SS_NTOP_BUFSIZE]; | |
89 | struct sockaddr_storage ss; | |
798e1352 | 90 | int error; |
b52ecd96 | 91 | uint16_t port; |
c34b65c7 | 92 | int fd; |
01420a2c | 93 | char *conn_name = CONST_CAST(char *, name); |
c34b65c7 | 94 | |
b52ecd96 GS |
95 | fd = inet_open_passive(SOCK_STREAM, suffix, -1, &ss, dscp, |
96 | kernel_print_port); | |
c34b65c7 BP |
97 | if (fd < 0) { |
98 | return -fd; | |
c34b65c7 | 99 | } |
42967038 | 100 | |
e731d71b | 101 | port = ss_get_port(&ss); |
01420a2c GS |
102 | if (!conn_name) { |
103 | snprintf(bound_name, sizeof bound_name, "ptcp:%"PRIu16":%s", | |
104 | port, ss_format_address(&ss, addrbuf, sizeof addrbuf)); | |
105 | conn_name = bound_name; | |
106 | } | |
e731d71b | 107 | |
c2e3cbaf | 108 | error = new_fd_pstream(conn_name, fd, ptcp_accept, unlink_path, pstreamp); |
798e1352 | 109 | if (!error) { |
e731d71b | 110 | pstream_set_bound_port(*pstreamp, htons(port)); |
798e1352 BP |
111 | } |
112 | return error; | |
c34b65c7 BP |
113 | } |
114 | ||
b52ecd96 GS |
115 | static int |
116 | ptcp_open(const char *name OVS_UNUSED, char *suffix, struct pstream **pstreamp, | |
117 | uint8_t dscp) | |
118 | { | |
01420a2c | 119 | return new_pstream(suffix, NULL, pstreamp, dscp, NULL, true); |
b52ecd96 GS |
120 | } |
121 | ||
c34b65c7 | 122 | static int |
e731d71b AS |
123 | ptcp_accept(int fd, const struct sockaddr_storage *ss, |
124 | size_t ss_len OVS_UNUSED, struct stream **streamp) | |
c34b65c7 | 125 | { |
e731d71b AS |
126 | char name[SS_NTOP_BUFSIZE + 16]; |
127 | char addrbuf[SS_NTOP_BUFSIZE]; | |
c34b65c7 | 128 | |
e731d71b AS |
129 | snprintf(name, sizeof name, "tcp:%s:%"PRIu16, |
130 | ss_format_address(ss, addrbuf, sizeof addrbuf), | |
131 | ss_get_port(ss)); | |
a8d81967 | 132 | return new_tcp_stream(name, fd, 0, streamp); |
c34b65c7 BP |
133 | } |
134 | ||
da327b18 | 135 | const struct pstream_class ptcp_pstream_class = { |
c34b65c7 | 136 | "ptcp", |
f1936eb6 | 137 | true, |
c34b65c7 BP |
138 | ptcp_open, |
139 | NULL, | |
140 | NULL, | |
f89b7ce5 | 141 | NULL, |
c34b65c7 | 142 | }; |