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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)dumprmt.c 8.3 (Berkeley) 4/28/95
34 * $FreeBSD: src/sbin/dump/dumprmt.c,v 1.14.2.1 2000/07/01 06:31:52 ps Exp $
35 * $DragonFly: src/sbin/dump/dumprmt.c,v 1.13 2005/04/14 10:17:23 y0netan1 Exp $
38 #include <sys/param.h>
40 #include <sys/socket.h>
43 #include <sys/vnode.h>
45 #include <ufs/inode.h>
47 #include <vfs/ufs/dinode.h>
50 #include <netinet/in.h>
51 #include <netinet/in_systm.h>
52 #include <netinet/ip.h>
53 #include <netinet/tcp.h>
55 #include <protocols/dumprestore.h>
69 #include "pathnames.h"
75 static int rmtstate
= TS_CLOSED
;
79 static int okname(char *);
80 static int rmtcall(const char *, const char *);
81 static void rmtconnaborted(int);
82 static int rmtgetb(void);
83 static void rmtgetconn(void);
84 static void rmtgets(char *, int);
85 static int rmtreply(const char *);
87 int krcmd(char **, int /*u_short*/, char *, char *, int *, char *);
90 static int errfd
= -1;
93 rmthost(const char *hostname
)
96 if ((rmtpeer
= strdup(hostname
)) == NULL
)
97 err(1, "strdup failed");
98 signal(SIGPIPE
, rmtconnaborted
);
106 rmtconnaborted(int signo __unused
)
108 msg("Lost connection to remote host.\n");
117 if (select(errfd
+ 1, &r
, NULL
, NULL
, &t
)) {
121 if ((i
= read(errfd
, buf
, sizeof(buf
) - 1)) > 0) {
123 msg("on %s: %s%s", rmtpeer
, buf
,
124 buf
[i
- 1] == '\n' ? "" : "\n");
137 static struct servent
*sp
= NULL
;
138 static struct passwd
*pwd
= NULL
;
145 sp
= getservbyname(dokerberos
? "kshell" : "shell", "tcp");
147 msg("%s/tcp: unknown service\n",
148 dokerberos
? "kshell" : "shell");
151 pwd
= getpwuid(getuid());
153 msg("who are you?\n");
157 if ((cp
= strchr(rmtpeer
, '@')) != NULL
) {
164 tuser
= pwd
->pw_name
;
165 if ((rmt
= getenv("RMT")) == NULL
)
170 rmtape
= krcmd(&rmtpeer
, sp
->s_port
, tuser
, rmt
, &errfd
,
174 rmtape
= rcmd(&rmtpeer
, (u_short
)sp
->s_port
, pwd
->pw_name
,
177 msg("login to %s as %s failed.\n", rmtpeer
, tuser
);
180 fprintf(stderr
, "Connection to %s established.\n", rmtpeer
);
181 size
= ntrec
* TP_BSIZE
;
182 if (size
> 60 * 1024) /* XXX */
184 /* Leave some space for rmt request/response protocol */
186 while (size
> TP_BSIZE
&&
187 setsockopt(rmtape
, SOL_SOCKET
, SO_SNDBUF
, &size
, sizeof (size
)) < 0)
189 setsockopt(rmtape
, SOL_SOCKET
, SO_RCVBUF
, &size
, sizeof (size
));
190 throughput
= IPTOS_THROUGHPUT
;
191 if (setsockopt(rmtape
, IPPROTO_IP
, IP_TOS
,
192 &throughput
, sizeof(throughput
)) < 0)
193 perror("IP_TOS:IPTOS_THROUGHPUT setsockopt");
195 if (setsockopt(rmtape
, IPPROTO_TCP
, TCP_NODELAY
, &on
, sizeof (on
)) < 0)
196 perror("TCP_NODELAY setsockopt");
205 for (cp
= cp0
; *cp
; cp
++) {
207 if (!isascii(c
) || !(isalnum(c
) || c
== '_' || c
== '-')) {
208 msg("invalid user name %s\n", cp0
);
216 rmtopen(const char *rtape
, int mode
)
220 snprintf(buf
, sizeof (buf
), "O%.226s\n%d\n", rtape
, mode
);
222 return (rmtcall(rtape
, buf
));
229 if (rmtstate
!= TS_OPEN
)
231 rmtcall("close", "C\n");
232 rmtstate
= TS_CLOSED
;
237 rmtread(char *buf
, int count
)
242 snprintf(line
, sizeof (line
), "R%d\n", count
);
243 n
= rmtcall("read", line
);
245 /* rmtcall() properly sets errno for us on errors. */
247 for (i
= 0; i
< n
; i
+= cc
) {
248 cc
= read(rmtape
, buf
+i
, n
- i
);
256 rmtseek(int offset
, int pos
)
260 snprintf(line
, sizeof (line
), "L%d\n%d\n", offset
, pos
);
261 return (rmtcall("seek", line
));
265 rmtioctl(int cmd
, int count
)
271 snprintf(buf
, sizeof (buf
), "I%d\n%d\n", cmd
, count
);
272 return (rmtcall("ioctl", buf
));
274 #endif /* RRESTORE */
277 rmtwrite(const void *buf
, int count
)
281 snprintf(line
, sizeof (line
), "W%d\n", count
);
282 write(rmtape
, line
, strlen(line
));
283 write(rmtape
, buf
, count
);
284 return (rmtreply("write"));
288 rmtcall(const char *cmd
, const char *buf
)
290 ssize_t len
= (ssize_t
)strlen(buf
);
292 if (write(rmtape
, buf
, len
) != len
)
294 return (rmtreply(cmd
));
298 rmtreply(const char *cmd
)
301 char code
[30], emsg
[BUFSIZ
];
303 rmtgets(code
, sizeof (code
));
304 if (*code
== 'E' || *code
== 'F') {
305 rmtgets(emsg
, sizeof (emsg
));
306 msg("%s: %s", cmd
, emsg
);
307 errno
= atoi(code
+ 1);
309 rmtstate
= TS_CLOSED
;
313 /* Kill trailing newline */
314 cp
= code
+ strlen(code
);
315 if (cp
> code
&& *--cp
== '\n')
318 msg("Protocol to remote tape server botched (code \"%s\").\n",
322 return (atoi(code
+ 1));
330 if (read(rmtape
, &c
, 1) != 1)
335 /* Get a line (guaranteed to have a trailing newline). */
337 rmtgets(char *line
, int len
)
351 msg("Protocol to remote tape server botched.\n");
352 msg("(rmtgets got \"%s\").\n", line
);