dispatch.c revision 119152 
1/*
2 * The new sysinstall program.
3 *
4 * This is probably the last program in the `sysinstall' line - the next
5 * generation being essentially a complete rewrite.
6 *
7 * $FreeBSD: head/usr.sbin/sade/dispatch.c 119152 2003-08-19 23:23:27Z obrien $
8 *
9 * Copyright (c) 1995
10 *	Jordan Hubbard.  All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer,
17 *    verbatim and that no modifications are made prior to this
18 *    point in the file.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 *    notice, this list of conditions and the following disclaimer in the
21 *    documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 */
36
37#include "sysinstall.h"
38#include <ctype.h>
39#include <errno.h>
40#include <sys/signal.h>
41#include <sys/fcntl.h>
42
43#include "list.h"
44
45static int dispatch_shutdown(dialogMenuItem *unused);
46static int dispatch_systemExecute(dialogMenuItem *unused);
47static int dispatch_msgConfirm(dialogMenuItem *unused);
48static int dispatch_mediaClose(dialogMenuItem *unused);
49
50static struct _word {
51    char *name;
52    int (*handler)(dialogMenuItem *self);
53} resWords[] = {
54    { "configAnonFTP",		configAnonFTP		},
55    { "configRouter",		configRouter		},
56    { "configInetd",		configInetd		},
57    { "configNFSServer",	configNFSServer		},
58    { "configNTP",		configNTP		},
59    { "configPCNFSD",		configPCNFSD		},
60    { "configPackages",		configPackages		},
61    { "configUsers",		configUsers		},
62    { "configXSetup",		configXSetup	},
63    { "configXDesktop",		configXDesktop	},
64#ifdef WITH_SLICES
65    { "diskPartitionEditor",	diskPartitionEditor	},
66#endif
67    { "diskPartitionWrite",	diskPartitionWrite	},
68    { "diskLabelEditor",	diskLabelEditor		},
69    { "diskLabelCommit",	diskLabelCommit		},
70    { "distReset",		distReset		},
71    { "distSetCustom",		distSetCustom		},
72    { "distUnsetCustom",	distUnsetCustom		},
73    { "distSetDeveloper",	distSetDeveloper	},
74    { "distSetXDeveloper",	distSetXDeveloper	},
75    { "distSetKernDeveloper",	distSetKernDeveloper	},
76    { "distSetUser",		distSetUser		},
77    { "distSetXUser",		distSetXUser		},
78    { "distSetMinimum",		distSetMinimum		},
79    { "distSetEverything",	distSetEverything	},
80    { "distSetSrc",		distSetSrc		},
81    { "distExtractAll",		distExtractAll		},
82    { "docBrowser",		docBrowser		},
83    { "docShowDocument",	docShowDocument		},
84    { "installCommit",		installCommit		},
85    { "installExpress",		installExpress		},
86    { "installStandard",	installStandard		},
87    { "installUpgrade",		installUpgrade		},
88    { "installFixupBase",	installFixupBase	},
89    { "installFixitHoloShell",	installFixitHoloShell	},
90    { "installFixitCDROM",	installFixitCDROM	},
91    { "installFixitFloppy",	installFixitFloppy	},
92    { "installFilesystems",	installFilesystems	},
93    { "installVarDefaults",	installVarDefaults	},
94    { "loadConfig",		dispatch_load_file	},
95    { "loadFloppyConfig",	dispatch_load_floppy	},
96    { "mediaClose",		dispatch_mediaClose	},
97    { "mediaSetCDROM",		mediaSetCDROM		},
98    { "mediaSetFloppy",		mediaSetFloppy		},
99    { "mediaSetDOS",		mediaSetDOS		},
100    { "mediaSetTape",		mediaSetTape		},
101    { "mediaSetFTP",		mediaSetFTP		},
102    { "mediaSetFTPActive",	mediaSetFTPActive	},
103    { "mediaSetFTPPassive",	mediaSetFTPPassive	},
104    { "mediaSetHTTP",		mediaSetHTTP		},
105    { "mediaSetUFS",		mediaSetUFS		},
106    { "mediaSetNFS",		mediaSetNFS		},
107    { "mediaSetFTPUserPass",	mediaSetFTPUserPass	},
108    { "mediaSetCPIOVerbosity",	mediaSetCPIOVerbosity	},
109    { "mediaGetType",		mediaGetType		},
110    { "msgConfirm",		dispatch_msgConfirm	},
111    { "optionsEditor",		optionsEditor		},
112    { "packageAdd",		packageAdd		},
113    { "addGroup",		userAddGroup		},
114    { "addUser",		userAddUser		},
115    { "shutdown",		dispatch_shutdown 	},
116    { "system",			dispatch_systemExecute	},
117    { "dumpVariables",		dump_variables		},
118    { "tcpMenuSelect",		tcpMenuSelect		},
119    { NULL, NULL },
120};
121
122/*
123 * Helper routines for buffering data.
124 *
125 * We read an entire configuration into memory before executing it
126 * so that we are truely standalone and can do things like nuke the
127 * file or disk we're working on.
128 */
129
130typedef struct command_buffer_ {
131    qelement	queue;
132    char *	string;
133} command_buffer;
134
135static void
136dispatch_free_command(command_buffer *item)
137{
138    REMQUE(item);
139    free(item->string);
140    free(item);
141}
142
143static void
144dispatch_free_all(qelement *head)
145{
146    command_buffer *item;
147
148    while (!EMPTYQUE(*head)) {
149	item = (command_buffer *) head->q_forw;
150	dispatch_free_command(item);
151    }
152}
153
154static command_buffer *
155dispatch_add_command(qelement *head, char *string)
156{
157    command_buffer *new;
158
159    new = malloc(sizeof(command_buffer));
160
161    if (!new)
162	return NULL;
163
164    new->string = strdup(string);
165    INSQUEUE(new, head->q_back);
166
167    return new;
168}
169
170/*
171 * Command processing
172 */
173
174/* Just convenience */
175static int
176dispatch_shutdown(dialogMenuItem *unused)
177{
178    systemShutdown(0);
179    return DITEM_FAILURE;
180}
181
182static int
183dispatch_systemExecute(dialogMenuItem *unused)
184{
185    char *cmd = variable_get(VAR_COMMAND);
186
187    if (cmd)
188	return systemExecute(cmd) ? DITEM_FAILURE : DITEM_SUCCESS;
189    else
190	msgDebug("_systemExecute: No command passed in `command' variable.\n");
191    return DITEM_FAILURE;
192}
193
194static int
195dispatch_msgConfirm(dialogMenuItem *unused)
196{
197    char *msg = variable_get(VAR_COMMAND);
198
199    if (msg) {
200	msgConfirm("%s", msg);
201	return DITEM_SUCCESS;
202    }
203
204    msgDebug("_msgConfirm: No message passed in `command' variable.\n");
205    return DITEM_FAILURE;
206}
207
208static int
209dispatch_mediaClose(dialogMenuItem *unused)
210{
211    mediaClose();
212    return DITEM_SUCCESS;
213}
214
215static int
216call_possible_resword(char *name, dialogMenuItem *value, int *status)
217{
218    int i, rval;
219
220    rval = 0;
221    for (i = 0; resWords[i].name; i++) {
222	if (!strcmp(name, resWords[i].name)) {
223	    *status = resWords[i].handler(value);
224	    rval = 1;
225	    break;
226	}
227    }
228    return rval;
229}
230
231/* For a given string, call it or spit out an undefined command diagnostic */
232int
233dispatchCommand(char *str)
234{
235    int i;
236    char *cp;
237
238    if (!str || !*str) {
239	msgConfirm("Null or zero-length string passed to dispatchCommand");
240	return DITEM_FAILURE;
241    }
242    /* If it's got a newline, trim it */
243    if ((cp = index(str, '\n')) != NULL)
244	*cp = '\0';
245
246    /* If it's got a `=' sign in there, assume it's a variable setting */
247    if (index(str, '=')) {
248	if (isDebug())
249	    msgDebug("dispatch: setting variable `%s'\n", str);
250	variable_set(str, 0);
251	i = DITEM_SUCCESS;
252    }
253    else {
254	/* A command might be a pathname if it's encoded in argv[0], which
255	   we also support */
256	if ((cp = rindex(str, '/')) != NULL)
257	    str = cp + 1;
258	if (isDebug())
259	    msgDebug("dispatch: calling resword `%s'\n", str);
260	if (!call_possible_resword(str, NULL, &i)) {
261	    msgNotify("Warning: No such command ``%s''", str);
262	    i = DITEM_FAILURE;
263	}
264	/*
265	 * Allow a user to prefix a command with "noError" to cause
266	 * us to ignore any errors for that one command.
267	 */
268	if (i != DITEM_SUCCESS && variable_get(VAR_NO_ERROR))
269	    i = DITEM_SUCCESS;
270	variable_unset(VAR_NO_ERROR);
271    }
272    return i;
273}
274
275
276/*
277 * File processing
278 */
279
280static qelement *
281dispatch_load_fp(FILE *fp)
282{
283    qelement *head;
284    char buf[BUFSIZ], *cp;
285
286    head = malloc(sizeof(qelement));
287
288    if (!head)
289	return NULL;
290
291    INITQUE(*head);
292
293    while (fgets(buf, sizeof buf, fp)) {
294
295	if ((cp = strchr(buf, '\n')) != NULL)
296	    *cp = '\0';
297	if (*buf == '\0' || *buf == '#')
298	    continue;
299
300	if (!dispatch_add_command(head, buf))
301	    return NULL;
302    }
303
304    return head;
305}
306
307static int
308dispatch_execute(qelement *head)
309{
310    int result = DITEM_SUCCESS;
311    command_buffer *item;
312    char *old_interactive;
313
314    if (!head)
315	return result | DITEM_FAILURE;
316
317    old_interactive = variable_get(VAR_NONINTERACTIVE);
318    if (old_interactive)
319	 old_interactive = strdup(old_interactive);	/* save copy */
320
321    /* Hint to others that we're running from a script, should they care */
322    variable_set2(VAR_NONINTERACTIVE, "yes", 0);
323
324    while (!EMPTYQUE(*head)) {
325	item = (command_buffer *) head->q_forw;
326
327	if (DITEM_STATUS(dispatchCommand(item->string)) != DITEM_SUCCESS) {
328	    msgConfirm("Command `%s' failed - rest of script aborted.\n",
329		       item->string);
330	    result |= DITEM_FAILURE;
331	    break;
332	}
333	dispatch_free_command(item);
334    }
335
336    dispatch_free_all(head);
337
338    if (!old_interactive)
339	variable_unset(VAR_NONINTERACTIVE);
340    else {
341	variable_set2(VAR_NONINTERACTIVE, old_interactive, 0);
342	free(old_interactive);
343    }
344
345    return result;
346}
347
348int
349dispatch_load_file_int(int quiet)
350{
351    FILE *fp;
352    char *cp;
353    int  i;
354    qelement *list;
355
356    static const char *names[] = {
357	"install.cfg",
358	"/stand/install.cfg",
359	"/tmp/install.cfg",
360	NULL
361    };
362
363    fp = NULL;
364    cp = variable_get(VAR_CONFIG_FILE);
365    if (!cp) {
366	for (i = 0; names[i]; i++)
367	    if ((fp = fopen(names[i], "r")) != NULL)
368		break;
369    } else
370	fp = fopen(cp, "r");
371
372    if (!fp) {
373	if (!quiet)
374	    msgConfirm("Unable to open %s: %s", cp, strerror(errno));
375	return DITEM_FAILURE;
376    }
377
378    list = dispatch_load_fp(fp);
379    fclose(fp);
380
381    return dispatch_execute(list);
382}
383
384int
385dispatch_load_file(dialogMenuItem *self)
386{
387    return dispatch_load_file_int(FALSE);
388}
389
390int
391dispatch_load_floppy(dialogMenuItem *self)
392{
393    int             what = DITEM_SUCCESS;
394    extern char    *distWanted;
395    char           *cp;
396    FILE           *fp;
397    qelement	   *list;
398
399    mediaClose();
400    cp = variable_get_value(VAR_INSTALL_CFG,
401			    "Specify the name of a configuration file\n"
402			    "residing on a MSDOS or UFS floppy.", 0);
403    if (!cp || !*cp) {
404	variable_unset(VAR_INSTALL_CFG);
405	what |= DITEM_FAILURE;
406	return what;
407    }
408
409    distWanted = cp;
410    /* Try to open the floppy drive */
411    if (DITEM_STATUS(mediaSetFloppy(NULL)) == DITEM_FAILURE) {
412	msgConfirm("Unable to set media device to floppy.");
413	what |= DITEM_FAILURE;
414	mediaClose();
415	return what;
416    }
417
418    if (!DEVICE_INIT(mediaDevice)) {
419	msgConfirm("Unable to mount floppy filesystem.");
420	what |= DITEM_FAILURE;
421	mediaClose();
422	return what;
423    }
424
425    fp = DEVICE_GET(mediaDevice, cp, TRUE);
426    if (fp) {
427	list = dispatch_load_fp(fp);
428	fclose(fp);
429	mediaClose();
430
431	what |= dispatch_execute(list);
432    }
433    else {
434	if (!variable_get(VAR_NO_ERROR))
435	    msgConfirm("Configuration file '%s' not found.", cp);
436	variable_unset(VAR_INSTALL_CFG);
437	what |= DITEM_FAILURE;
438	mediaClose();
439    }
440    return what;
441}
442
443