2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)dumprmt.c 8.3 (Berkeley) 4/28/95
30 * $FreeBSD: src/sbin/dump/dumprmt.c,v 1.14.2.1 2000/07/01 06:31:52 ps Exp $
33 #include <sys/param.h>
35 #include <sys/socket.h>
37 #include <vfs/ufs/dinode.h>
39 #include <netinet/in.h>
40 #include <netinet/in_systm.h>
41 #include <netinet/ip.h>
42 #include <netinet/tcp.h>
44 #include <protocols/dumprestore.h>
56 #include "pathnames.h"
62 static int rmtstate
= TS_CLOSED
;
66 static int okname(char *);
67 static int rmtcall(const char *, const char *);
68 static void rmtconnaborted(int);
69 static int rmtgetb(void);
70 static void rmtgetconn(void);
71 static void rmtgets(char *, int);
72 static int rmtreply(const char *);
74 int krcmd(char **, int /*u_short*/, char *, char *, int *, char *);
77 static int errfd
= -1;
80 rmthost(const char *hostname
)
83 if ((rmtpeer
= strdup(hostname
)) == NULL
)
84 err(1, "strdup failed");
85 signal(SIGPIPE
, rmtconnaborted
);
93 rmtconnaborted(int signo __unused
)
95 msg("Lost connection to remote host.\n");
104 if (select(errfd
+ 1, &r
, NULL
, NULL
, &t
)) {
108 if ((i
= read(errfd
, buf
, sizeof(buf
) - 1)) > 0) {
110 msg("on %s: %s%s", rmtpeer
, buf
,
111 buf
[i
- 1] == '\n' ? "" : "\n");
124 static struct servent
*sp
= NULL
;
125 static struct passwd
*pwd
= NULL
;
132 sp
= getservbyname(dokerberos
? "kshell" : "shell", "tcp");
134 msg("%s/tcp: unknown service\n",
135 dokerberos
? "kshell" : "shell");
138 pwd
= getpwuid(getuid());
140 msg("who are you?\n");
144 if ((cp
= strchr(rmtpeer
, '@')) != NULL
) {
151 tuser
= pwd
->pw_name
;
152 if ((rmt
= getenv("RMT")) == NULL
)
157 rmtape
= krcmd(&rmtpeer
, sp
->s_port
, tuser
, rmt
, &errfd
, NULL
);
160 rmtape
= rcmd(&rmtpeer
, (u_short
)sp
->s_port
, pwd
->pw_name
,
163 msg("login to %s as %s failed.\n", rmtpeer
, tuser
);
166 fprintf(stderr
, "Connection to %s established.\n", rmtpeer
);
167 size
= ntrec
* TP_BSIZE
;
168 if (size
> 60 * 1024) /* XXX */
170 /* Leave some space for rmt request/response protocol */
172 while (size
> TP_BSIZE
&&
173 setsockopt(rmtape
, SOL_SOCKET
, SO_SNDBUF
, &size
, sizeof (size
)) < 0)
175 setsockopt(rmtape
, SOL_SOCKET
, SO_RCVBUF
, &size
, sizeof (size
));
176 throughput
= IPTOS_THROUGHPUT
;
177 if (setsockopt(rmtape
, IPPROTO_IP
, IP_TOS
,
178 &throughput
, sizeof(throughput
)) < 0)
179 perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
181 if (setsockopt(rmtape
, IPPROTO_TCP
, TCP_NODELAY
, &on
, sizeof (on
)) < 0)
182 perror("TCP_NODELAY setsockopt");
191 for (cp
= cp0
; *cp
; cp
++) {
193 if (!isascii(c
) || !(isalnum(c
) || c
== '_' || c
== '-')) {
194 msg("invalid user name %s\n", cp0
);
202 rmtopen(const char *rtape
, int mode
)
206 snprintf(buf
, sizeof (buf
), "O%.226s\n%d\n", rtape
, mode
);
208 return (rmtcall(rtape
, buf
));
215 if (rmtstate
!= TS_OPEN
)
217 rmtcall("close", "C\n");
218 rmtstate
= TS_CLOSED
;
223 rmtread(char *buf
, int count
)
228 snprintf(line
, sizeof (line
), "R%d\n", count
);
229 n
= rmtcall("read", line
);
231 /* rmtcall() properly sets errno for us on errors. */
233 for (i
= 0; i
< n
; i
+= cc
) {
234 cc
= read(rmtape
, buf
+i
, n
- i
);
242 rmtseek(int offset
, int pos
)
246 snprintf(line
, sizeof (line
), "L%d\n%d\n", offset
, pos
);
247 return (rmtcall("seek", line
));
251 rmtioctl(int cmd
, int count
)
257 snprintf(buf
, sizeof (buf
), "I%d\n%d\n", cmd
, count
);
258 return (rmtcall("ioctl", buf
));
260 #endif /* RRESTORE */
263 rmtwrite(const void *buf
, int count
)
267 snprintf(line
, sizeof (line
), "W%d\n", count
);
268 write(rmtape
, line
, strlen(line
));
269 write(rmtape
, buf
, count
);
270 return (rmtreply("write"));
274 rmtcall(const char *cmd
, const char *buf
)
276 ssize_t len
= (ssize_t
)strlen(buf
);
278 if (write(rmtape
, buf
, len
) != len
)
280 return (rmtreply(cmd
));
284 rmtreply(const char *cmd
)
287 char code
[30], emsg
[BUFSIZ
];
289 rmtgets(code
, sizeof (code
));
290 if (*code
== 'E' || *code
== 'F') {
291 rmtgets(emsg
, sizeof (emsg
));
292 msg("%s: %s", cmd
, emsg
);
293 errno
= atoi(code
+ 1);
295 rmtstate
= TS_CLOSED
;
299 /* Kill trailing newline */
300 cp
= code
+ strlen(code
);
301 if (cp
> code
&& *--cp
== '\n')
304 msg("Protocol to remote tape server botched (code \"%s\").\n",
308 return (atoi(code
+ 1));
316 if (read(rmtape
, &c
, 1) != 1)
321 /* Get a line (guaranteed to have a trailing newline). */
323 rmtgets(char *line
, int len
)
337 msg("Protocol to remote tape server botched.\n");
338 msg("(rmtgets got \"%s\").\n", line
);