1/*-
2 * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 1999 Brian Somers <brian@Awfulhak.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
26 * $Id: tcp.c,v 1.3 1999/05/24 16:39:15 brian Exp $
| 26 * $Id: tcp.c,v 1.4 1999/06/05 21:35:54 brian Exp $
|
27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
31#include <netinet/in.h>
32#include <arpa/inet.h>
33#include <netdb.h>
34
35#include <errno.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <sys/uio.h>
40#include <termios.h>
41#include <unistd.h>
42
43#include "layer.h"
44#include "defs.h"
45#include "mbuf.h"
46#include "log.h"
| 27 */
28
29#include <sys/types.h>
30#include <sys/socket.h>
31#include <netinet/in.h>
32#include <arpa/inet.h>
33#include <netdb.h>
34
35#include <errno.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <sys/uio.h>
40#include <termios.h>
41#include <unistd.h>
42
43#include "layer.h"
44#include "defs.h"
45#include "mbuf.h"
46#include "log.h"
|
47#include "sync.h"
| |
48#include "timer.h"
49#include "lqr.h"
50#include "hdlc.h"
51#include "throughput.h"
52#include "fsm.h"
53#include "lcp.h"
54#include "ccp.h"
55#include "link.h"
56#include "async.h"
57#include "descriptor.h"
58#include "physical.h"
59#include "tcp.h"
60
61static int
62tcp_OpenConnection(const char *name, char *host, char *port)
63{
64 struct sockaddr_in dest;
65 int sock;
66 struct servent *sp;
67
68 dest.sin_family = AF_INET;
69 dest.sin_addr.s_addr = inet_addr(host);
70 dest.sin_addr = GetIpAddr(host);
71 if (dest.sin_addr.s_addr == INADDR_NONE) {
72 log_Printf(LogWARN, "%s: %s: unknown host\n", name, host);
73 return -1;
74 }
75 dest.sin_port = htons(atoi(port));
76 if (dest.sin_port == 0) {
77 sp = getservbyname(port, "tcp");
78 if (sp)
79 dest.sin_port = sp->s_port;
80 else {
81 log_Printf(LogWARN, "%s: %s: unknown service\n", name, port);
82 return -1;
83 }
84 }
85 log_Printf(LogPHASE, "%s: Connecting to %s:%s/tcp\n", name, host, port);
86
87 sock = socket(PF_INET, SOCK_STREAM, 0);
88 if (sock < 0)
89 return sock;
90
91 if (connect(sock, (struct sockaddr *)&dest, sizeof dest) < 0) {
92 log_Printf(LogWARN, "%s: connect: %s\n", name, strerror(errno));
93 close(sock);
94 return -1;
95 }
96
97 return sock;
98}
99
100static struct device tcpdevice = {
101 TCP_DEVICE,
102 "tcp",
103 NULL,
104 NULL,
105 NULL,
106 NULL,
107 NULL,
108 NULL,
109 NULL,
110 NULL,
111 NULL,
| 47#include "timer.h"
48#include "lqr.h"
49#include "hdlc.h"
50#include "throughput.h"
51#include "fsm.h"
52#include "lcp.h"
53#include "ccp.h"
54#include "link.h"
55#include "async.h"
56#include "descriptor.h"
57#include "physical.h"
58#include "tcp.h"
59
60static int
61tcp_OpenConnection(const char *name, char *host, char *port)
62{
63 struct sockaddr_in dest;
64 int sock;
65 struct servent *sp;
66
67 dest.sin_family = AF_INET;
68 dest.sin_addr.s_addr = inet_addr(host);
69 dest.sin_addr = GetIpAddr(host);
70 if (dest.sin_addr.s_addr == INADDR_NONE) {
71 log_Printf(LogWARN, "%s: %s: unknown host\n", name, host);
72 return -1;
73 }
74 dest.sin_port = htons(atoi(port));
75 if (dest.sin_port == 0) {
76 sp = getservbyname(port, "tcp");
77 if (sp)
78 dest.sin_port = sp->s_port;
79 else {
80 log_Printf(LogWARN, "%s: %s: unknown service\n", name, port);
81 return -1;
82 }
83 }
84 log_Printf(LogPHASE, "%s: Connecting to %s:%s/tcp\n", name, host, port);
85
86 sock = socket(PF_INET, SOCK_STREAM, 0);
87 if (sock < 0)
88 return sock;
89
90 if (connect(sock, (struct sockaddr *)&dest, sizeof dest) < 0) {
91 log_Printf(LogWARN, "%s: connect: %s\n", name, strerror(errno));
92 close(sock);
93 return -1;
94 }
95
96 return sock;
97}
98
99static struct device tcpdevice = {
100 TCP_DEVICE,
101 "tcp",
102 NULL,
103 NULL,
104 NULL,
105 NULL,
106 NULL,
107 NULL,
108 NULL,
109 NULL,
110 NULL,
|
| 111 NULL,
|
112 NULL
113};
114
115struct device *
116tcp_iov2device(int type, struct physical *p, struct iovec *iov,
117 int *niov, int maxiov)
118{
119 if (type == TCP_DEVICE) {
120 free(iov[(*niov)++].iov_base);
121 physical_SetupStack(p, tcpdevice.name, PHYSICAL_FORCE_ASYNC);
122 return &tcpdevice;
123 }
124
125 return NULL;
126}
127
128struct device *
129tcp_Create(struct physical *p)
130{
131 char *cp, *host, *port, *svc;
132
133 if (p->fd < 0) {
134 if ((cp = strchr(p->name.full, ':')) != NULL) {
135 *cp = '\0';
136 host = p->name.full;
137 port = cp + 1;
138 svc = strchr(port, '/');
139 if (svc && strcasecmp(svc, "/tcp")) {
140 *cp = ':';
141 return 0;
142 }
143 if (svc)
144 *svc = '\0';
145 if (*host && *port) {
146 p->fd = tcp_OpenConnection(p->link.name, host, port);
147 *cp = ':';
148 if (svc)
149 *svc = '/';
150 if (p->fd >= 0)
151 log_Printf(LogDEBUG, "%s: Opened tcp socket %s\n", p->link.name,
152 p->name.full);
153 } else {
154 if (svc)
155 *svc = '/';
156 *cp = ':';
157 }
158 }
159 }
160
161 if (p->fd >= 0) {
162 /* See if we're a tcp socket */
163 int type, sz, err;
164
165 sz = sizeof type;
166 if ((err = getsockopt(p->fd, SOL_SOCKET, SO_TYPE, &type, &sz)) == 0 &&
167 sz == sizeof type && type == SOCK_STREAM) {
168 struct sockaddr_in sock;
169 struct sockaddr *sockp = (struct sockaddr *)&sock;
170
171 if (*p->name.full == '\0') {
172 sz = sizeof sock;
173 if (getpeername(p->fd, sockp, &sz) != 0 ||
174 sz != sizeof(struct sockaddr_in) || sock.sin_family != AF_INET) {
175 log_Printf(LogDEBUG, "%s: Link is SOCK_STREAM, but not inet\n",
176 p->link.name);
177 return NULL;
178 }
179
180 log_Printf(LogPHASE, "%s: Link is a tcp socket\n", p->link.name);
181
182 snprintf(p->name.full, sizeof p->name.full, "%s:%d/tcp",
183 inet_ntoa(sock.sin_addr), ntohs(sock.sin_port));
184 p->name.base = p->name.full;
185 }
186 physical_SetupStack(p, tcpdevice.name, PHYSICAL_FORCE_ASYNC);
187 return &tcpdevice;
188 }
189 }
190
191 return NULL;
192}
| 112 NULL
113};
114
115struct device *
116tcp_iov2device(int type, struct physical *p, struct iovec *iov,
117 int *niov, int maxiov)
118{
119 if (type == TCP_DEVICE) {
120 free(iov[(*niov)++].iov_base);
121 physical_SetupStack(p, tcpdevice.name, PHYSICAL_FORCE_ASYNC);
122 return &tcpdevice;
123 }
124
125 return NULL;
126}
127
128struct device *
129tcp_Create(struct physical *p)
130{
131 char *cp, *host, *port, *svc;
132
133 if (p->fd < 0) {
134 if ((cp = strchr(p->name.full, ':')) != NULL) {
135 *cp = '\0';
136 host = p->name.full;
137 port = cp + 1;
138 svc = strchr(port, '/');
139 if (svc && strcasecmp(svc, "/tcp")) {
140 *cp = ':';
141 return 0;
142 }
143 if (svc)
144 *svc = '\0';
145 if (*host && *port) {
146 p->fd = tcp_OpenConnection(p->link.name, host, port);
147 *cp = ':';
148 if (svc)
149 *svc = '/';
150 if (p->fd >= 0)
151 log_Printf(LogDEBUG, "%s: Opened tcp socket %s\n", p->link.name,
152 p->name.full);
153 } else {
154 if (svc)
155 *svc = '/';
156 *cp = ':';
157 }
158 }
159 }
160
161 if (p->fd >= 0) {
162 /* See if we're a tcp socket */
163 int type, sz, err;
164
165 sz = sizeof type;
166 if ((err = getsockopt(p->fd, SOL_SOCKET, SO_TYPE, &type, &sz)) == 0 &&
167 sz == sizeof type && type == SOCK_STREAM) {
168 struct sockaddr_in sock;
169 struct sockaddr *sockp = (struct sockaddr *)&sock;
170
171 if (*p->name.full == '\0') {
172 sz = sizeof sock;
173 if (getpeername(p->fd, sockp, &sz) != 0 ||
174 sz != sizeof(struct sockaddr_in) || sock.sin_family != AF_INET) {
175 log_Printf(LogDEBUG, "%s: Link is SOCK_STREAM, but not inet\n",
176 p->link.name);
177 return NULL;
178 }
179
180 log_Printf(LogPHASE, "%s: Link is a tcp socket\n", p->link.name);
181
182 snprintf(p->name.full, sizeof p->name.full, "%s:%d/tcp",
183 inet_ntoa(sock.sin_addr), ntohs(sock.sin_port));
184 p->name.base = p->name.full;
185 }
186 physical_SetupStack(p, tcpdevice.name, PHYSICAL_FORCE_ASYNC);
187 return &tcpdevice;
188 }
189 }
190
191 return NULL;
192}
|