| 1 |
/* @(#)rscsi.c 1.29 05/05/16 Copyright 1994,2000-2002 J. Schilling*/
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| 2 |
#ifndef lint
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| 3 |
static char sccsid[] =
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| 4 |
"@(#)rscsi.c 1.29 05/05/16 Copyright 1994,2000-2002 J. Schilling";
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| 5 |
#endif
|
| 6 |
/*
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| 7 |
* Remote SCSI server
|
| 8 |
*
|
| 9 |
* Copyright (c) 1994,2000-2002 J. Schilling
|
| 10 |
*/
|
| 11 |
/*
|
| 12 |
* This program is free software; you can redistribute it and/or modify
|
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
|
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*
|
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 18 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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| 22 |
* this program; see the file COPYING. If not, write to the Free Software
|
| 23 |
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 24 |
*/
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| 25 |
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| 26 |
/*#define FORCE_DEBUG*/
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| 27 |
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| 28 |
#include <mconfig.h>
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| 29 |
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| 30 |
#include <stdio.h>
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| 31 |
#include <stdxlib.h>
|
| 32 |
#include <unixstd.h> /* includes <sys/types.h> */
|
| 33 |
#include <utypes.h>
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| 34 |
#include <fctldefs.h>
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| 35 |
#include <statdefs.h>
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| 36 |
#include <strdefs.h>
|
| 37 |
#ifdef HAVE_SYS_SOCKET_H
|
| 38 |
#define USE_REMOTE
|
| 39 |
#include <sys/socket.h>
|
| 40 |
#endif
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| 41 |
#ifdef HAVE_SYS_PARAM_H
|
| 42 |
#include <sys/param.h> /* BSD-4.2 & Linux need this for MAXHOSTNAMELEN */
|
| 43 |
#endif
|
| 44 |
#include <errno.h>
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| 45 |
#include <pwd.h>
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| 46 |
|
| 47 |
#include <standard.h>
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| 48 |
#include <deflts.h>
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| 49 |
#include <patmatch.h>
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| 50 |
#include <schily.h>
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| 51 |
|
| 52 |
#include <scg/scgcmd.h>
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| 53 |
#include <scg/scsitransp.h>
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| 54 |
|
| 55 |
#include <netinet/in.h>
|
| 56 |
#ifdef HAVE_ARPA_INET_H
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| 57 |
#include <arpa/inet.h> /* BeOS does not have <arpa/inet.h> */
|
| 58 |
#endif /* but inet_ntaoa() is in <netdb.h> */
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| 59 |
#ifdef HAVE_NETDB_H
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| 60 |
#include <netdb.h>
|
| 61 |
#endif
|
| 62 |
|
| 63 |
EXPORT int main __PR((int argc, char **argv));
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| 64 |
#ifdef USE_REMOTE
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| 65 |
LOCAL void checkuser __PR((void));
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| 66 |
LOCAL char *getpeer __PR((void));
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| 67 |
LOCAL BOOL checktarget __PR((void));
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| 68 |
LOCAL BOOL strmatch __PR((char *str, char *pat));
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| 69 |
LOCAL void dorscsi __PR((void));
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| 70 |
LOCAL void scsiversion __PR((void));
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| 71 |
LOCAL void openscsi __PR((void));
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| 72 |
LOCAL void closescsi __PR((void));
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| 73 |
LOCAL void maxdma __PR((void));
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| 74 |
LOCAL void getbuf __PR((void));
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| 75 |
LOCAL void freebuf __PR((void));
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| 76 |
LOCAL void havebus __PR((void));
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| 77 |
LOCAL void scsifileno __PR((void));
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| 78 |
LOCAL void initiator_id __PR((void));
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| 79 |
LOCAL void isatapi __PR((void));
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| 80 |
LOCAL void scsireset __PR((void));
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| 81 |
LOCAL void sendcmd __PR((void));
|
| 82 |
|
| 83 |
LOCAL int fillrdbuf __PR((void));
|
| 84 |
LOCAL int readchar __PR((char *cp));
|
| 85 |
|
| 86 |
LOCAL void readbuf __PR((char *buf, int n));
|
| 87 |
LOCAL void voidarg __PR((int n));
|
| 88 |
LOCAL void readarg __PR((char *buf, int n));
|
| 89 |
LOCAL char * preparebuffer __PR((int size));
|
| 90 |
LOCAL int checkscsi __PR((char *decive));
|
| 91 |
LOCAL void rscsirespond __PR((int ret, int err));
|
| 92 |
LOCAL void rscsireply __PR((int ret));
|
| 93 |
LOCAL void rscsierror __PR((int err, char *str, char *xstr));
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| 94 |
|
| 95 |
#define CMD_SIZE 80
|
| 96 |
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| 97 |
LOCAL SCSI *scsi_ptr = NULL;
|
| 98 |
LOCAL char *Sbuf;
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| 99 |
LOCAL long Sbufsize;
|
| 100 |
|
| 101 |
LOCAL char *username;
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| 102 |
LOCAL char *peername;
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| 103 |
|
| 104 |
LOCAL char *debug_name;
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| 105 |
LOCAL FILE *debug_file;
|
| 106 |
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| 107 |
#define DEBUG(fmt) if (debug_file) js_fprintf(debug_file, fmt)
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| 108 |
#define DEBUG1(fmt,a) if (debug_file) js_fprintf(debug_file, fmt, a)
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| 109 |
#define DEBUG2(fmt,a1,a2) if (debug_file) js_fprintf(debug_file, fmt, a1, a2)
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| 110 |
#define DEBUG3(fmt,a1,a2,a3) if (debug_file) js_fprintf(debug_file, fmt, a1, a2, a3)
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| 111 |
#define DEBUG4(fmt,a1,a2,a3,a4) if (debug_file) js_fprintf(debug_file, fmt, a1, a2, a3, a4)
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| 112 |
#define DEBUG5(fmt,a1,a2,a3,a4,a5) if (debug_file) js_fprintf(debug_file, fmt, a1, a2, a3, a4, a5)
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| 113 |
#define DEBUG6(fmt,a1,a2,a3,a4,a5,a6) if (debug_file) js_fprintf(debug_file, fmt, a1, a2, a3, a4, a5, a6)
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| 114 |
#endif /* USE_REMOTE */
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| 115 |
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| 116 |
EXPORT int
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| 117 |
main(argc, argv)
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| 118 |
int argc;
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| 119 |
char **argv;
|
| 120 |
{
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| 121 |
save_args(argc, argv);
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| 122 |
#ifndef USE_REMOTE
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| 123 |
comerrno(EX_BAD, "No remote SCSI support on this platform.\n");
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| 124 |
#else
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| 125 |
argc--, argv++;
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| 126 |
if (argc > 0 && strcmp(*argv, "-c") == 0) {
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| 127 |
/*
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| 128 |
* Skip params in case we have been installed as shell.
|
| 129 |
*/
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| 130 |
argc--, argv++;
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argc--, argv++;
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| 132 |
}
|
| 133 |
/*
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| 134 |
* WARNING you are only allowed to change the defaults configuration
|
| 135 |
* filename if you also change the documentation and add a statement
|
| 136 |
* that makes clear where the official location of the file is, why you
|
| 137 |
* did choose a nonstandard location and that the nonstandard location
|
| 138 |
* only refers to inofficial rscsi versions.
|
| 139 |
*
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* I was forced to add this because some people change cdrecord without
|
| 141 |
* rational reason and then publish the result. As those people
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| 142 |
* don't contribute work and don't give support, they are causing extra
|
| 143 |
* work for me and this way slow down the development.
|
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*/
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if (defltopen("/etc/default/rscsi") < 0) {
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rscsierror(geterrno(), errmsgstr(geterrno()),
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"Remote configuration error: Cannot open /etc/default/rscsi");
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/* rscsirespond(-1, geterrno());*/
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exit(EX_BAD);
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| 150 |
}
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| 151 |
debug_name=defltread("DEBUG=");
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#ifdef FORCE_DEBUG
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if (debug_name == NULL && argc <= 0)
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debug_name = "/tmp/RSCSI";
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#endif
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#ifdef NONONO
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/*
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* Should we allow root to shoot himself into the foot?
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* Allowing to write arbitrary files may be a security risk.
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*/
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| 161 |
if (argc > 0 && getuid() == 0)
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debug_name = *argv;
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#endif
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/*
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* XXX If someone sets up debugging and allows the debug file to be
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| 167 |
* XXX replaced by a symlink to e.g. /etc/passwd this would be a
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* XXX security risk. But /etc/default/rscsi is only writable by root
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| 169 |
* XXX and for this reason a possible security risk would have been
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* XXX introduced by the administrator.
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*/
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| 172 |
if (debug_name != NULL)
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debug_file = fopen(debug_name, "w");
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| 174 |
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| 175 |
if (argc > 0) {
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| 176 |
if (debug_file == 0) {
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| 177 |
rscsirespond(-1, geterrno());
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exit(EX_BAD);
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}
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(void) setbuf(debug_file, (char *)0);
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}
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checkuser(); /* Check if we are called by a bad guy */
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peername = getpeer(); /* Get host name of caller */
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dorscsi();
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#endif /* USE_REMOTE */
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return (0);
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}
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| 189 |
#ifdef USE_REMOTE
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LOCAL void
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checkuser()
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| 192 |
{
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| 193 |
uid_t uid = getuid();
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char *uname;
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struct passwd *pw;
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| 196 |
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| 197 |
if (uid == 0) {
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username = "root";
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DEBUG("rscsid: user id 0, name root\n");
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return;
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}
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pw = getpwuid(uid);
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| 203 |
if (pw == NULL)
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goto notfound;
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username = pw->pw_name;
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DEBUG2("rscsid: user id %ld, name %s\n", (long)uid, username);
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| 208 |
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defltfirst();
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while ((uname = defltnext("USER=")) != NULL) {
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if (strmatch(username, uname))
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return;
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}
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notfound:
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DEBUG2("rscsid: Illegal user '%s' id %ld for RSCSI server\n",
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username, (long)uid);
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rscsierror(0, "Illegal user id for RSCSI server", NULL);
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exit(EX_BAD);
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}
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#ifndef NI_MAXHOST
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#ifdef MAXHOSTNAMELEN /* XXX remove this and sys/param.h */
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#define NI_MAXHOST MAXHOSTNAMELEN
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#else
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#define NI_MAXHOST 64
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#endif
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#endif
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LOCAL char *
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getpeer()
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{
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| 232 |
#ifdef HAVE_GETNAMEINFO
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#ifdef HAVE_SOCKADDR_STORAGE
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struct sockaddr_storage sa;
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#else
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char sa[256];
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#endif
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| 238 |
#else
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struct sockaddr sa;
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| 240 |
struct hostent *he;
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| 241 |
#endif
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| 242 |
struct sockaddr *sap;
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struct sockaddr_in *s;
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| 244 |
socklen_t sasize = sizeof (sa);
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static char buffer[NI_MAXHOST];
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| 246 |
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| 247 |
sap = (struct sockaddr *)&sa;
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| 248 |
if (getpeername(STDIN_FILENO, sap, &sasize) < 0) {
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| 249 |
int errsav = geterrno();
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| 250 |
struct stat sb;
|
| 251 |
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| 252 |
if (fstat(STDIN_FILENO, &sb) >= 0) {
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| 253 |
if (S_ISFIFO(sb.st_mode)) {
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| 254 |
DEBUG("rmt: stdin is a PIPE\n");
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| 255 |
return ("PIPE");
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| 256 |
}
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| 257 |
DEBUG1("rscsid: stdin st_mode %0llo\n", (Llong)sb.st_mode);
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| 258 |
}
|
| 259 |
|
| 260 |
DEBUG1("rscsid: peername %s\n", errmsgstr(errsav));
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| 261 |
return ("ILLEGAL_SOCKET");
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| 262 |
} else {
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| 263 |
s = (struct sockaddr_in *)&sa;
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| 264 |
#ifdef AF_INET6
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| 265 |
if (s->sin_family != AF_INET && s->sin_family != AF_INET6) {
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| 266 |
#else
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| 267 |
if (s->sin_family != AF_INET) {
|
| 268 |
#endif
|
| 269 |
#ifdef AF_UNIX
|
| 270 |
/*
|
| 271 |
* AF_UNIX is not defined on BeOS
|
| 272 |
*/
|
| 273 |
if (s->sin_family == AF_UNIX) {
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| 274 |
DEBUG("rmt: stdin is a PIPE (UNIX domain socket)\n");
|
| 275 |
return ("PIPE");
|
| 276 |
}
|
| 277 |
#endif
|
| 278 |
DEBUG1("rmt: stdin NOT_IP socket (sin_family: %d)\n",
|
| 279 |
s->sin_family);
|
| 280 |
return ("NOT_IP");
|
| 281 |
}
|
| 282 |
|
| 283 |
#ifdef HAVE_GETNAMEINFO
|
| 284 |
buffer[0] = '\0';
|
| 285 |
if (debug_file &&
|
| 286 |
getnameinfo(sap, sasize, buffer, sizeof (buffer), NULL, 0,
|
| 287 |
NI_NUMERICHOST) == 0) {
|
| 288 |
DEBUG1("rmt: peername %s\n", buffer);
|
| 289 |
}
|
| 290 |
buffer[0] = '\0';
|
| 291 |
if (getnameinfo(sap, sasize, buffer, sizeof (buffer), NULL, 0,
|
| 292 |
0) == 0) {
|
| 293 |
DEBUG1("rmt: peername %s\n", buffer);
|
| 294 |
return (buffer);
|
| 295 |
}
|
| 296 |
return ("CANNOT_MAP_ADDRESS");
|
| 297 |
#else /* HAVE_GETNAMEINFO */
|
| 298 |
#ifdef HAVE_INET_NTOA
|
| 299 |
(void) js_snprintf(buffer, sizeof(buffer), "%s", inet_ntoa(s->sin_addr));
|
| 300 |
#else
|
| 301 |
(void) js_snprintf(buffer, sizeof(buffer), "%x", s->sin_addr.s_addr);
|
| 302 |
#endif
|
| 303 |
DEBUG1("rscsid: peername %s\n", buffer);
|
| 304 |
he = gethostbyaddr((char *)&s->sin_addr.s_addr, 4, AF_INET);
|
| 305 |
DEBUG1("rscsid: peername %s\n", he!=NULL?he->h_name:buffer);
|
| 306 |
if (he != NULL)
|
| 307 |
return (he->h_name);
|
| 308 |
return (buffer);
|
| 309 |
#endif /* HAVE_GETNAMEINFO */
|
| 310 |
}
|
| 311 |
}
|
| 312 |
|
| 313 |
LOCAL BOOL
|
| 314 |
checktarget()
|
| 315 |
{
|
| 316 |
char *target;
|
| 317 |
char *user;
|
| 318 |
char *host;
|
| 319 |
char *p;
|
| 320 |
int bus;
|
| 321 |
int chan;
|
| 322 |
int tgt;
|
| 323 |
int lun;
|
| 324 |
|
| 325 |
if (peername == NULL)
|
| 326 |
return (FALSE);
|
| 327 |
defltfirst();
|
| 328 |
while ((target = defltnext("ACCESS=")) != NULL) {
|
| 329 |
p = target;
|
| 330 |
while (*p == '\t')
|
| 331 |
p++;
|
| 332 |
user = p;
|
| 333 |
if ((p = strchr(p, '\t')) != NULL)
|
| 334 |
*p++ = '\0';
|
| 335 |
else
|
| 336 |
continue;
|
| 337 |
if (!strmatch(username, user))
|
| 338 |
continue;
|
| 339 |
|
| 340 |
while (*p == '\t')
|
| 341 |
p++;
|
| 342 |
host = p;
|
| 343 |
if ((p = strchr(p, '\t')) != NULL)
|
| 344 |
*p++ = '\0';
|
| 345 |
else
|
| 346 |
continue;
|
| 347 |
if (!strmatch(peername, host))
|
| 348 |
continue;
|
| 349 |
|
| 350 |
p = astoi(p, &bus);
|
| 351 |
if (*p != '\t')
|
| 352 |
continue;
|
| 353 |
p = astoi(p, &chan);
|
| 354 |
if (*p != '\t')
|
| 355 |
continue;
|
| 356 |
p = astoi(p, &tgt);
|
| 357 |
if (*p != '\t')
|
| 358 |
continue;
|
| 359 |
p = astoi(p, &lun);
|
| 360 |
|
| 361 |
if (*p != '\t' && *p != '\n' && *p != '\r' && *p != '\0')
|
| 362 |
continue;
|
| 363 |
DEBUG6("ACCESS %s %s %d.%d,%d,%d\n", user, host, bus, chan, tgt, lun);
|
| 364 |
|
| 365 |
if (bus != -1 && bus != scg_scsibus(scsi_ptr))
|
| 366 |
continue;
|
| 367 |
if (tgt != -1 && tgt != scg_target(scsi_ptr))
|
| 368 |
continue;
|
| 369 |
if (lun != -1 && lun != scg_lun(scsi_ptr))
|
| 370 |
continue;
|
| 371 |
return (TRUE);
|
| 372 |
}
|
| 373 |
return (FALSE);
|
| 374 |
}
|
| 375 |
|
| 376 |
LOCAL BOOL
|
| 377 |
strmatch(str, pat)
|
| 378 |
char *str;
|
| 379 |
char *pat;
|
| 380 |
{
|
| 381 |
int *aux;
|
| 382 |
int *state;
|
| 383 |
int alt;
|
| 384 |
int plen;
|
| 385 |
char *p;
|
| 386 |
|
| 387 |
plen = strlen(pat);
|
| 388 |
aux = malloc(plen*sizeof(int));
|
| 389 |
state = malloc((plen+1)*sizeof(int));
|
| 390 |
if (aux == NULL || state == NULL) {
|
| 391 |
if (aux) free(aux);
|
| 392 |
if (state) free(state);
|
| 393 |
return (FALSE);
|
| 394 |
}
|
| 395 |
|
| 396 |
if ((alt = patcompile((const unsigned char *)pat, plen, aux)) == 0) {
|
| 397 |
/* Bad pattern */
|
| 398 |
free(aux);
|
| 399 |
free(state);
|
| 400 |
return (FALSE);
|
| 401 |
}
|
| 402 |
|
| 403 |
p = (char *)patmatch((const unsigned char *)pat, aux,
|
| 404 |
(const unsigned char *)str, 0,
|
| 405 |
strlen(str), alt, state);
|
| 406 |
free(aux);
|
| 407 |
free(state);
|
| 408 |
|
| 409 |
if (p != NULL && *p == '\0')
|
| 410 |
return (TRUE);
|
| 411 |
return (FALSE);
|
| 412 |
}
|
| 413 |
|
| 414 |
LOCAL void
|
| 415 |
dorscsi()
|
| 416 |
{
|
| 417 |
char c;
|
| 418 |
|
| 419 |
while (readchar(&c) == 1) {
|
| 420 |
seterrno(0);
|
| 421 |
|
| 422 |
switch (c) {
|
| 423 |
|
| 424 |
case 'V': /* "V" ersion */
|
| 425 |
scsiversion();
|
| 426 |
break;
|
| 427 |
case 'O': /* "O" pen */
|
| 428 |
openscsi();
|
| 429 |
break;
|
| 430 |
case 'C': /* "C" lose */
|
| 431 |
closescsi();
|
| 432 |
break;
|
| 433 |
case 'D': /* "D" MA */
|
| 434 |
maxdma();
|
| 435 |
break;
|
| 436 |
case 'M': /* "M" alloc */
|
| 437 |
getbuf();
|
| 438 |
break;
|
| 439 |
case 'F': /* "F" free */
|
| 440 |
freebuf();
|
| 441 |
break;
|
| 442 |
case 'B': /* "B" us */
|
| 443 |
havebus();
|
| 444 |
break;
|
| 445 |
case 'T': /* "T" arget */
|
| 446 |
scsifileno();
|
| 447 |
break;
|
| 448 |
case 'I': /* "I" nitiator */
|
| 449 |
initiator_id();
|
| 450 |
break;
|
| 451 |
case 'A': /* "A" tapi */
|
| 452 |
isatapi();
|
| 453 |
break;
|
| 454 |
case 'R': /* "R" eset */
|
| 455 |
scsireset();
|
| 456 |
break;
|
| 457 |
case 'S': /* "S" end */
|
| 458 |
sendcmd();
|
| 459 |
break;
|
| 460 |
|
| 461 |
default:
|
| 462 |
DEBUG1("rscsid: garbage command '%c'\n", c);
|
| 463 |
rscsierror(0, "Garbage command", NULL);
|
| 464 |
exit(EX_BAD);
|
| 465 |
}
|
| 466 |
}
|
| 467 |
exit(0);
|
| 468 |
}
|
| 469 |
|
| 470 |
LOCAL void
|
| 471 |
scsiversion()
|
| 472 |
{
|
| 473 |
int ret;
|
| 474 |
char *str;
|
| 475 |
char what[CMD_SIZE];
|
| 476 |
|
| 477 |
readarg(what, sizeof(what));
|
| 478 |
DEBUG1("rscsid: V %s\n", what);
|
| 479 |
if (scsi_ptr == NULL) {
|
| 480 |
rscsirespond(-1, EBADF);
|
| 481 |
return;
|
| 482 |
}
|
| 483 |
str = scg_version(scsi_ptr, atoi(what));
|
| 484 |
ret = strlen(str);
|
| 485 |
ret++; /* Include null char */
|
| 486 |
rscsirespond(ret, geterrno());
|
| 487 |
_nixwrite(STDOUT_FILENO, str, ret);
|
| 488 |
}
|
| 489 |
|
| 490 |
LOCAL void
|
| 491 |
openscsi()
|
| 492 |
{
|
| 493 |
char device[CMD_SIZE];
|
| 494 |
char errstr[80];
|
| 495 |
int debug = 0;
|
| 496 |
int lverbose = 0;
|
| 497 |
int ret = 0;
|
| 498 |
char rbuf[1600];
|
| 499 |
|
| 500 |
if (scsi_ptr != NULL)
|
| 501 |
(void) scg_close(scsi_ptr);
|
| 502 |
|
| 503 |
readarg(device, sizeof(device));
|
| 504 |
DEBUG1("rscsid: O %s\n", device);
|
| 505 |
if (strncmp(device, "REMOTE", 6) == 0) {
|
| 506 |
scsi_ptr = NULL;
|
| 507 |
seterrno(EINVAL);
|
| 508 |
} else if (!checkscsi(device)) {
|
| 509 |
scsi_ptr = NULL;
|
| 510 |
seterrno(EACCES);
|
| 511 |
} else {
|
| 512 |
scsi_ptr = scg_open(device, errstr, sizeof(errstr), debug, lverbose);
|
| 513 |
if (scsi_ptr == NULL) {
|
| 514 |
ret = -1;
|
| 515 |
} else {
|
| 516 |
scsi_ptr->silent = 1;
|
| 517 |
scsi_ptr->verbose = 0;
|
| 518 |
scsi_ptr->debug = 0;
|
| 519 |
scsi_ptr->kdebug = 0;
|
| 520 |
}
|
| 521 |
}
|
| 522 |
if (ret < 0) {
|
| 523 |
/*
|
| 524 |
* XXX This is currently the only place where we use the
|
| 525 |
* XXX extended error string.
|
| 526 |
*/
|
| 527 |
rscsierror(geterrno(), errmsgstr(geterrno()), errstr);
|
| 528 |
/* rscsirespond(ret, geterrno());*/
|
| 529 |
return;
|
| 530 |
}
|
| 531 |
DEBUG4("rscsid:>A 0 %d.%d,%d,%d\n",
|
| 532 |
scg_scsibus(scsi_ptr),
|
| 533 |
0,
|
| 534 |
scg_target(scsi_ptr),
|
| 535 |
scg_lun(scsi_ptr));
|
| 536 |
|
| 537 |
ret = js_snprintf(rbuf, sizeof(rbuf), "A0\n%d\n%d\n%d\n%d\n",
|
| 538 |
scg_scsibus(scsi_ptr),
|
| 539 |
0,
|
| 540 |
scg_target(scsi_ptr),
|
| 541 |
scg_lun(scsi_ptr));
|
| 542 |
(void) _nixwrite(STDOUT_FILENO, rbuf, ret);
|
| 543 |
}
|
| 544 |
|
| 545 |
LOCAL void
|
| 546 |
closescsi()
|
| 547 |
{
|
| 548 |
int ret;
|
| 549 |
char device[CMD_SIZE];
|
| 550 |
|
| 551 |
readarg(device, sizeof(device));
|
| 552 |
DEBUG1("rscsid: C %s\n", device);
|
| 553 |
ret = scg_close(scsi_ptr);
|
| 554 |
rscsirespond(ret, geterrno());
|
| 555 |
scsi_ptr = NULL;
|
| 556 |
}
|
| 557 |
|
| 558 |
LOCAL void
|
| 559 |
maxdma()
|
| 560 |
{
|
| 561 |
int ret;
|
| 562 |
char amt[CMD_SIZE];
|
| 563 |
|
| 564 |
readarg(amt, sizeof(amt));
|
| 565 |
DEBUG1("rscsid: D %s\n", amt);
|
| 566 |
if (scsi_ptr == NULL) {
|
| 567 |
rscsirespond(-1, EBADF);
|
| 568 |
return;
|
| 569 |
}
|
| 570 |
ret = scg_bufsize(scsi_ptr, atol(amt));
|
| 571 |
rscsirespond(ret, geterrno());
|
| 572 |
}
|
| 573 |
|
| 574 |
LOCAL void
|
| 575 |
getbuf()
|
| 576 |
{
|
| 577 |
int ret = 0;
|
| 578 |
char amt[CMD_SIZE];
|
| 579 |
|
| 580 |
readarg(amt, sizeof(amt));
|
| 581 |
DEBUG1("rscsid: M %s\n", amt);
|
| 582 |
if (scsi_ptr == NULL) {
|
| 583 |
rscsirespond(-1, EBADF);
|
| 584 |
return;
|
| 585 |
}
|
| 586 |
ret = scg_bufsize(scsi_ptr, atol(amt));
|
| 587 |
if (preparebuffer(ret) == NULL)
|
| 588 |
ret = -1;
|
| 589 |
rscsirespond(ret, geterrno());
|
| 590 |
}
|
| 591 |
|
| 592 |
LOCAL void
|
| 593 |
freebuf()
|
| 594 |
{
|
| 595 |
int ret = 0;
|
| 596 |
char dummy[CMD_SIZE];
|
| 597 |
|
| 598 |
readarg(dummy, sizeof(dummy));
|
| 599 |
DEBUG1("rscsid: F %s\n", dummy);
|
| 600 |
if (scsi_ptr == NULL) {
|
| 601 |
rscsirespond(-1, EBADF);
|
| 602 |
return;
|
| 603 |
}
|
| 604 |
scg_freebuf(scsi_ptr);
|
| 605 |
Sbuf = NULL;
|
| 606 |
rscsirespond(ret, geterrno());
|
| 607 |
}
|
| 608 |
|
| 609 |
LOCAL void
|
| 610 |
havebus()
|
| 611 |
{
|
| 612 |
int ret;
|
| 613 |
char bus[CMD_SIZE];
|
| 614 |
char chan[CMD_SIZE];
|
| 615 |
|
| 616 |
readarg(bus, sizeof(bus));
|
| 617 |
readarg(chan, sizeof(chan));
|
| 618 |
DEBUG2("rscsid: B %s.%s\n", bus, chan);
|
| 619 |
if (scsi_ptr == NULL) {
|
| 620 |
rscsirespond(-1, EBADF);
|
| 621 |
return;
|
| 622 |
}
|
| 623 |
ret = scg_havebus(scsi_ptr, atol(bus));
|
| 624 |
rscsirespond(ret, geterrno());
|
| 625 |
}
|
| 626 |
|
| 627 |
LOCAL void
|
| 628 |
scsifileno()
|
| 629 |
{
|
| 630 |
int ret;
|
| 631 |
char bus[CMD_SIZE];
|
| 632 |
char chan[CMD_SIZE];
|
| 633 |
char tgt[CMD_SIZE];
|
| 634 |
char lun[CMD_SIZE];
|
| 635 |
|
| 636 |
readarg(bus, sizeof(bus));
|
| 637 |
readarg(chan, sizeof(chan));
|
| 638 |
readarg(tgt, sizeof(tgt));
|
| 639 |
readarg(lun, sizeof(lun));
|
| 640 |
DEBUG4("rscsid: T %s.%s,%s,%s\n", bus, chan, tgt, lun);
|
| 641 |
if (scsi_ptr == NULL) {
|
| 642 |
rscsirespond(-1, EBADF);
|
| 643 |
return;
|
| 644 |
}
|
| 645 |
seterrno(0);
|
| 646 |
ret = scg_settarget(scsi_ptr, atoi(bus), atoi(tgt), atoi(lun));
|
| 647 |
if (!checktarget()) {
|
| 648 |
scg_settarget(scsi_ptr, -1, -1, -1);
|
| 649 |
ret = -1;
|
| 650 |
}
|
| 651 |
if (geterrno() != 0)
|
| 652 |
rscsirespond(ret, geterrno());
|
| 653 |
else
|
| 654 |
rscsireply(ret);
|
| 655 |
}
|
| 656 |
|
| 657 |
LOCAL void
|
| 658 |
initiator_id()
|
| 659 |
{
|
| 660 |
int ret;
|
| 661 |
char dummy[CMD_SIZE];
|
| 662 |
|
| 663 |
readarg(dummy, sizeof(dummy));
|
| 664 |
DEBUG1("rscsid: I %s\n", dummy);
|
| 665 |
if (scsi_ptr == NULL) {
|
| 666 |
rscsirespond(-1, EBADF);
|
| 667 |
return;
|
| 668 |
}
|
| 669 |
seterrno(0);
|
| 670 |
ret = scg_initiator_id(scsi_ptr);
|
| 671 |
if (geterrno() != 0)
|
| 672 |
rscsirespond(ret, geterrno());
|
| 673 |
else
|
| 674 |
rscsireply(ret);
|
| 675 |
}
|
| 676 |
|
| 677 |
LOCAL void
|
| 678 |
isatapi()
|
| 679 |
{
|
| 680 |
int ret;
|
| 681 |
char dummy[CMD_SIZE];
|
| 682 |
|
| 683 |
readarg(dummy, sizeof(dummy));
|
| 684 |
DEBUG1("rscsid: A %s\n", dummy);
|
| 685 |
if (scsi_ptr == NULL) {
|
| 686 |
rscsirespond(-1, EBADF);
|
| 687 |
return;
|
| 688 |
}
|
| 689 |
seterrno(0);
|
| 690 |
ret = scg_isatapi(scsi_ptr);
|
| 691 |
if (geterrno() != 0)
|
| 692 |
rscsirespond(ret, geterrno());
|
| 693 |
else
|
| 694 |
rscsireply(ret);
|
| 695 |
}
|
| 696 |
|
| 697 |
LOCAL void
|
| 698 |
scsireset()
|
| 699 |
{
|
| 700 |
int ret;
|
| 701 |
char what[CMD_SIZE];
|
| 702 |
|
| 703 |
readarg(what, sizeof(what));
|
| 704 |
DEBUG1("rscsid: R %s\n", what);
|
| 705 |
if (scsi_ptr == NULL) {
|
| 706 |
rscsirespond(-1, EBADF);
|
| 707 |
return;
|
| 708 |
}
|
| 709 |
ret = scg_reset(scsi_ptr, atoi(what));
|
| 710 |
rscsirespond(ret, geterrno());
|
| 711 |
}
|
| 712 |
|
| 713 |
LOCAL void
|
| 714 |
sendcmd()
|
| 715 |
{
|
| 716 |
register struct scg_cmd *scmd;
|
| 717 |
int n;
|
| 718 |
int ret;
|
| 719 |
char count[CMD_SIZE];
|
| 720 |
char flags[CMD_SIZE];
|
| 721 |
char cdb_len[CMD_SIZE];
|
| 722 |
char sense_len[CMD_SIZE];
|
| 723 |
char timeout[CMD_SIZE];
|
| 724 |
int csize;
|
| 725 |
int cflags;
|
| 726 |
int clen;
|
| 727 |
int ctimeout;
|
| 728 |
char rbuf[1600];
|
| 729 |
char *p;
|
| 730 |
|
| 731 |
/*
|
| 732 |
* S count\n
|
| 733 |
* flags\n
|
| 734 |
* cdb_len\n
|
| 735 |
* sense_len\n
|
| 736 |
* timeout\n
|
| 737 |
* <data if available>
|
| 738 |
*
|
| 739 |
* Timeout:
|
| 740 |
* - sss (e.g. 10)
|
| 741 |
* - sss.uuu (e.g. 10.23)
|
| 742 |
*/
|
| 743 |
readarg(count, sizeof(count));
|
| 744 |
readarg(flags, sizeof(flags));
|
| 745 |
readarg(cdb_len, sizeof(cdb_len));
|
| 746 |
readarg(sense_len, sizeof(sense_len));
|
| 747 |
readarg(timeout, sizeof(timeout));
|
| 748 |
DEBUG5("rscsid: S %s %s %s %s %s", count, flags, cdb_len, sense_len, timeout);
|
| 749 |
csize = atoi(count);
|
| 750 |
cflags = atoi(flags);
|
| 751 |
clen = atoi(cdb_len);
|
| 752 |
|
| 753 |
p = strchr(timeout, '.');
|
| 754 |
if (p)
|
| 755 |
*p = '\0';
|
| 756 |
ctimeout = atoi(timeout);
|
| 757 |
|
| 758 |
if (scsi_ptr == NULL || clen > SCG_MAX_CMD || csize > Sbufsize) {
|
| 759 |
DEBUG("\n");
|
| 760 |
voidarg(clen);
|
| 761 |
if ((cflags & SCG_RECV_DATA) == 0 && csize > 0)
|
| 762 |
voidarg(csize);
|
| 763 |
rscsirespond(-1, scsi_ptr==NULL ? EBADF : EINVAL);
|
| 764 |
return;
|
| 765 |
}
|
| 766 |
|
| 767 |
scmd = scsi_ptr->scmd;
|
| 768 |
fillbytes((caddr_t)scmd, sizeof(*scmd), '\0');
|
| 769 |
scmd->addr = (caddr_t)Sbuf;
|
| 770 |
scmd->size = csize;
|
| 771 |
scmd->flags = cflags;
|
| 772 |
scmd->cdb_len = clen;
|
| 773 |
scmd->sense_len = atoi(sense_len);
|
| 774 |
scmd->timeout = ctimeout;
|
| 775 |
readbuf((char *)scmd->cdb.cmd_cdb, clen);
|
| 776 |
DEBUG6(" 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
|
| 777 |
scmd->cdb.cmd_cdb[0],
|
| 778 |
scmd->cdb.cmd_cdb[1],
|
| 779 |
scmd->cdb.cmd_cdb[2],
|
| 780 |
scmd->cdb.cmd_cdb[3],
|
| 781 |
scmd->cdb.cmd_cdb[4],
|
| 782 |
scmd->cdb.cmd_cdb[5]);
|
| 783 |
|
| 784 |
if ((cflags & SCG_RECV_DATA) == 0 && csize > 0)
|
| 785 |
readbuf(Sbuf, scmd->size);
|
| 786 |
|
| 787 |
scsi_ptr->cmdname = "";
|
| 788 |
|
| 789 |
ret = scg_cmd(scsi_ptr);
|
| 790 |
|
| 791 |
n = 0;
|
| 792 |
if ((csize - scmd->resid) > 0)
|
| 793 |
n = csize - scmd->resid;
|
| 794 |
|
| 795 |
/*
|
| 796 |
* A count\n
|
| 797 |
* error\n
|
| 798 |
* errno\n
|
| 799 |
* scb\n
|
| 800 |
* sense_count\n
|
| 801 |
* <data if available>
|
| 802 |
*/
|
| 803 |
DEBUG5("rscsid:>A %d %d %d %d %d\n",
|
| 804 |
n,
|
| 805 |
scmd->error,
|
| 806 |
scmd->ux_errno,
|
| 807 |
*(Uchar *)&scmd->scb,
|
| 808 |
scmd->sense_count);
|
| 809 |
|
| 810 |
ret = js_snprintf(rbuf, sizeof(rbuf), "A%d\n%d\n%d\n%d\n%d\n",
|
| 811 |
n,
|
| 812 |
scmd->error,
|
| 813 |
scmd->ux_errno,
|
| 814 |
*(Uchar *)&scmd->scb,
|
| 815 |
scmd->sense_count);
|
| 816 |
|
| 817 |
if (scmd->sense_count > 0) {
|
| 818 |
movebytes(scmd->u_sense.cmd_sense, &rbuf[ret], scmd->sense_count);
|
| 819 |
ret += scmd->sense_count;
|
| 820 |
}
|
| 821 |
if ((cflags & SCG_RECV_DATA) == 0)
|
| 822 |
n = 0;
|
| 823 |
if (n > 0 && ((ret + n) <= sizeof(rbuf))) {
|
| 824 |
movebytes(Sbuf, &rbuf[ret], n);
|
| 825 |
ret += n;
|
| 826 |
n = 0;
|
| 827 |
}
|
| 828 |
(void) _nixwrite(STDOUT_FILENO, rbuf, ret);
|
| 829 |
|
| 830 |
if (n > 0)
|
| 831 |
(void) _nixwrite(STDOUT_FILENO, Sbuf, n);
|
| 832 |
}
|
| 833 |
|
| 834 |
#define READB_SIZE 128
|
| 835 |
LOCAL char readb[READB_SIZE];
|
| 836 |
LOCAL char *readbptr;
|
| 837 |
LOCAL int readbcnt;
|
| 838 |
|
| 839 |
LOCAL int
|
| 840 |
fillrdbuf()
|
| 841 |
{
|
| 842 |
readbptr = readb;
|
| 843 |
|
| 844 |
return (readbcnt = _niread(STDIN_FILENO, readb, READB_SIZE));
|
| 845 |
}
|
| 846 |
|
| 847 |
LOCAL int
|
| 848 |
readchar(cp)
|
| 849 |
char *cp;
|
| 850 |
{
|
| 851 |
if (--readbcnt < 0) {
|
| 852 |
if (fillrdbuf() <= 0)
|
| 853 |
return (readbcnt);
|
| 854 |
--readbcnt;
|
| 855 |
}
|
| 856 |
*cp = *readbptr++;
|
| 857 |
return (1);
|
| 858 |
}
|
| 859 |
|
| 860 |
LOCAL void
|
| 861 |
readbuf(buf, n)
|
| 862 |
register char *buf;
|
| 863 |
register int n;
|
| 864 |
{
|
| 865 |
register int i = 0;
|
| 866 |
register int amt;
|
| 867 |
|
| 868 |
if (readbcnt > 0) {
|
| 869 |
amt = readbcnt;
|
| 870 |
if (amt > n)
|
| 871 |
amt = n;
|
| 872 |
movebytes(readbptr, buf, amt);
|
| 873 |
readbptr += amt;
|
| 874 |
readbcnt -= amt;
|
| 875 |
i += amt;
|
| 876 |
}
|
| 877 |
|
| 878 |
for (; i < n; i += amt) {
|
| 879 |
amt = _niread(STDIN_FILENO, &buf[i], n - i);
|
| 880 |
if (amt <= 0) {
|
| 881 |
DEBUG("rscsid: premature eof\n");
|
| 882 |
rscsierror(0, "Premature eof", NULL);
|
| 883 |
exit(EX_BAD);
|
| 884 |
}
|
| 885 |
}
|
| 886 |
}
|
| 887 |
|
| 888 |
LOCAL void
|
| 889 |
voidarg(n)
|
| 890 |
register int n;
|
| 891 |
{
|
| 892 |
register int i;
|
| 893 |
register int amt;
|
| 894 |
char buf[512];
|
| 895 |
|
| 896 |
for (i = 0; i < n; i += amt) {
|
| 897 |
amt = sizeof(buf);
|
| 898 |
if ((n - i) < amt)
|
| 899 |
amt = n - i;
|
| 900 |
readbuf(buf, amt);
|
| 901 |
}
|
| 902 |
}
|
| 903 |
|
| 904 |
LOCAL void
|
| 905 |
readarg(buf, n)
|
| 906 |
char *buf;
|
| 907 |
int n;
|
| 908 |
{
|
| 909 |
int i;
|
| 910 |
|
| 911 |
for (i = 0; i < n; i++) {
|
| 912 |
if (readchar(&buf[i]) != 1)
|
| 913 |
exit(0);
|
| 914 |
if (buf[i] == '\n')
|
| 915 |
break;
|
| 916 |
}
|
| 917 |
buf[i] = '\0';
|
| 918 |
}
|
| 919 |
|
| 920 |
LOCAL char *
|
| 921 |
preparebuffer(size)
|
| 922 |
int size;
|
| 923 |
{
|
| 924 |
Sbufsize = size;
|
| 925 |
if ((Sbuf = scg_getbuf(scsi_ptr, Sbufsize)) == NULL) {
|
| 926 |
Sbufsize = 0L;
|
| 927 |
return (Sbuf);
|
| 928 |
}
|
| 929 |
size = Sbufsize + 1024; /* Add protocol overhead */
|
| 930 |
|
| 931 |
#ifdef SO_SNDBUF
|
| 932 |
while (size > 512 &&
|
| 933 |
setsockopt(STDOUT_FILENO, SOL_SOCKET, SO_SNDBUF, (char *)&size, sizeof (size)) < 0)
|
| 934 |
size -= 512;
|
| 935 |
DEBUG1("rscsid: sndsize: %d\n", size);
|
| 936 |
#endif
|
| 937 |
#ifdef SO_RCVBUF
|
| 938 |
while (size > 512 &&
|
| 939 |
setsockopt(STDIN_FILENO, SOL_SOCKET, SO_RCVBUF, (char *)&size, sizeof (size)) < 0)
|
| 940 |
size -= 512;
|
| 941 |
DEBUG1("rscsid: rcvsize: %d\n", size);
|
| 942 |
#endif
|
| 943 |
return (Sbuf);
|
| 944 |
}
|
| 945 |
|
| 946 |
LOCAL int
|
| 947 |
checkscsi(device)
|
| 948 |
char *device;
|
| 949 |
{
|
| 950 |
#ifdef CHECKTAPE
|
| 951 |
if (strncmp(device, "/dev/rst", 8) == 0 ||
|
| 952 |
strncmp(device, "/dev/nrst", 9) == 0 ||
|
| 953 |
strcmp(device, "/dev/zero") == 0 ||
|
| 954 |
strcmp(device, "/dev/null") == 0)
|
| 955 |
return (1);
|
| 956 |
return (0);
|
| 957 |
#else
|
| 958 |
return (1);
|
| 959 |
#endif
|
| 960 |
}
|
| 961 |
|
| 962 |
LOCAL void
|
| 963 |
rscsirespond(ret, err)
|
| 964 |
int ret;
|
| 965 |
int err;
|
| 966 |
{
|
| 967 |
if (ret < 0) {
|
| 968 |
rscsierror(err, errmsgstr(err), NULL);
|
| 969 |
} else {
|
| 970 |
rscsireply(ret);
|
| 971 |
}
|
| 972 |
}
|
| 973 |
|
| 974 |
LOCAL void
|
| 975 |
rscsireply(ret)
|
| 976 |
int ret;
|
| 977 |
{
|
| 978 |
char rbuf[CMD_SIZE];
|
| 979 |
|
| 980 |
DEBUG1("rscsid:>A %d\n", ret);
|
| 981 |
(void) js_snprintf(rbuf, sizeof(rbuf), "A%d\n", ret);
|
| 982 |
(void) _nixwrite(STDOUT_FILENO, rbuf, strlen(rbuf));
|
| 983 |
}
|
| 984 |
|
| 985 |
LOCAL void
|
| 986 |
rscsierror(err, str, xstr)
|
| 987 |
int err;
|
| 988 |
char *str;
|
| 989 |
char *xstr;
|
| 990 |
{
|
| 991 |
char rbuf[1600];
|
| 992 |
int xlen = 0;
|
| 993 |
int n;
|
| 994 |
|
| 995 |
if (xstr != NULL)
|
| 996 |
xlen = strlen(xstr) + 1;
|
| 997 |
|
| 998 |
DEBUG3("rscsid:>E %d (%s) [%s]\n", err, str, xstr?xstr:"");
|
| 999 |
n = js_snprintf(rbuf, sizeof(rbuf), "E%d\n%s\n%d\n", err, str, xlen);
|
| 1000 |
|
| 1001 |
if (xlen > 0 && ((xlen + n) <= sizeof(rbuf))) {
|
| 1002 |
movebytes(xstr, &rbuf[n], xlen);
|
| 1003 |
n += xlen;
|
| 1004 |
xlen = 0;
|
| 1005 |
}
|
| 1006 |
(void) _nixwrite(STDOUT_FILENO, rbuf, n);
|
| 1007 |
if (xlen > 0)
|
| 1008 |
(void) _nixwrite(STDOUT_FILENO, xstr, xlen);
|
| 1009 |
}
|
| 1010 |
#endif /* USE_REMOTE */
|
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