summaryrefslogtreecommitdiffstats
path: root/mdk-stage1/probing.c
blob: b41500314670cb740d24a6fa6d4d5fa2a6cc7642 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
/*
 * Guillaume Cottenceau (gc@mandrakesoft.com)
 *
 * Copyright 2000 MandrakeSoft
 *
 * This software may be freely redistributed under the terms of the GNU
 * public license.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/*
 * Portions from Erik Troan (ewt@redhat.com)
 *
 * Copyright 1996 Red Hat Software 
 *
 */


/*
 * This contains stuff related to probing:
 * (1) PCI devices
 * (2) IDE media
 * (3) SCSI media
 */


#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "log.h"
#include "frontend.h"
#include "modules.h"
#include "pci-resource/pci-ids.h"

#include "probing.h"


void pci_probing(enum driver_type type)
{
	if (IS_EXPERT)
		ask_insmod(type);
	else {
		/* do it automatically */
		char * mytype;
		FILE * f;
		int len;
		char buf[100];
		struct pci_module_map * pcidb;

		if (type == SCSI_ADAPTERS)
			mytype = "SCSI";
		else if (type == NETWORK_DEVICES)
			mytype = "NET";
		else
			return;
		
		f = fopen("/proc/bus/pci/devices", "rb");
    
		if (!f) {
			log_message("PCI: could not open proc file");
			return;
		}

		switch (type) {
		case SCSI_ADAPTERS:
			pcidb = scsi_pci_ids;
			len   = scsi_num_ids;
			break;
		case NETWORK_DEVICES:
			pcidb = eth_pci_ids;
			len   = eth_num_ids;
			break;
		default:
			return;
		}

		while (1) {
			int i, garb, vendor, device;
		
			if (!fgets(buf,100,f)) break;
		
			sscanf(buf, "%x %04x%04x", &garb, &vendor, &device);
 
			for (i = 0; i < len; i++) {
				if (pcidb[i].vendor == vendor && pcidb[i].device == device) {
					log_message("PCI: found suggestion for %s (%s)", pcidb[i].name, pcidb[i].module);
					if (type == SCSI_ADAPTERS) {
						/* insmod takes time, let's use the wait message */
						wait_message("Installing %s driver for %s", mytype, pcidb[i].name);
						my_insmod(pcidb[i].module);
						remove_wait_message();
					} else if (type == NETWORK_DEVICES) {
						/* insmod is quick, let's use the info message */
						info_message("Found %s driver for %s", mytype, pcidb[i].name);
						my_insmod(pcidb[i].module);
					}
				}
			}
		}
	}
}


static struct media_info * medias = NULL;

static void find_media(void)
{
    	char b[50];
	char buf[500];
	struct media_info tmp[50];
	int count;
        int fd;

	if (!medias)
		pci_probing(SCSI_ADAPTERS);
	else
		free(medias); /* that does not free the strings, by the way */

	/* ----------------------------------------------- */
	log_message("looking for ide media");

    	count = 0;
    	strcpy(b, "/proc/ide/hda");
    	for (; b[12] <= 'm'; b[12]++) {
		int i;
		
		/* first, test if file exists (will tell if attached medium exists) */
		b[13] = '\0';
		if (access(b, R_OK))
			continue;

		tmp[count].name = strdup("hda");
		tmp[count].name[2] = b[12];

		/* media type */
		strcpy(b + 13, "/media");
		fd = open(b, O_RDONLY);
		if (fd == -1) {
			log_message("failed to open %s for reading", b);
			continue;
		}

		i = read(fd, buf, sizeof(buf));
		if (i == -1) {
			log_message("failed to read %s", b);
			continue;
		}
		buf[i] = '\0';
		close(fd);

		if (!strncmp(buf, "disk", strlen("disk")))
			tmp[count].type = DISK;
		else if (!strncmp(buf, "cdrom", strlen("cdrom")))
			tmp[count].type = CDROM;
		else if (!strncmp(buf, "tape", strlen("tape")))
			tmp[count].type = TAPE;
		else if (!strncmp(buf, "floppy", strlen("floppy")))
			tmp[count].type = FLOPPY;
		else
			tmp[count].type = UNKNOWN_MEDIA;

		/* media model */
		strcpy(b + 13, "/model");
		fd = open(b, O_RDONLY);
		if (fd == -1) {
			log_message("failed to open %s for reading", b);
			continue;
		}

		i = read(fd, buf, sizeof(buf));
		if (i <= 0) {
			log_message("failed to read %s", b);
			tmp[count].model = strdup("(none)");
		}
		else {
			buf[i-1] = '\0'; /* eat the \n */
			tmp[count].model = strdup(buf);
		}

		log_message("IDE/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
		tmp[count].bus = IDE;
		count++;
    	}



	/* ----------------------------------------------- */
	log_message("looking for scsi media");


	fd = open("/proc/scsi/scsi", O_RDONLY);
	if (fd != -1) {
		enum { SCSI_TOP, SCSI_HOST, SCSI_VENDOR, SCSI_TYPE } state = SCSI_TOP;
		char * start, * chptr, * next, * end;

		int i = read(fd, &buf, sizeof(buf));
		if (i < 1) {
			close(fd);
			goto end_scsi;
		}
		close(fd);
		buf[i] = '\0';

		if (!strncmp(buf, "Attached devices: none", strlen("Attached devices: none")))
			goto end_scsi;
		
		start = buf;
		while (*start) {
			char tmp_model[50];
			char tmp_name[10];
			char scsi_disk_count = 'a';
			char scsi_cdrom_count = '0';
			char scsi_tape_count = '0';

			chptr = start;
			while (*chptr != '\n') chptr++;
			*chptr = '\0';
			next = chptr + 1;
			
			switch (state) {
			case SCSI_TOP:
				if (strncmp(start, "Attached devices: ", strlen("Attached devices: ")))
					goto end_scsi;
				state = SCSI_HOST;
				break;

			case SCSI_HOST:
				if (strncmp(start, "Host: ", strlen("Host: ")))
					goto end_scsi;
				state = SCSI_VENDOR;
				break;

			case SCSI_VENDOR:
				if (strncmp(start, "  Vendor: ", strlen("  Vendor: ")))
					goto end_scsi;

				/* (1) Grab Vendor info */
				start += 10;
				end = chptr = strstr(start, "Model:");
				if (!chptr)
					goto end_scsi;

				chptr--;
				while (*chptr == ' ')
					chptr--;
				if (*chptr == ':') {
					chptr++;
					*(chptr + 1) = '\0';
					strcpy(tmp_model,"(unknown)");
				} else {
					*(chptr + 1) = '\0';
					strcpy(tmp_model, start);
				}

				/* (2) Grab Model info */
				start = end;
				start += 7;
				
				chptr = strstr(start, "Rev:");
				if (!chptr)
					goto end_scsi;
				
				chptr--;
				while (*chptr == ' ') chptr--;
				*(chptr + 1) = '\0';
				
				strcat(tmp_model, " ");
				strcat(tmp_model, start);

				tmp[count].model = strdup(tmp_model);
				
				state = SCSI_TYPE;

				break;

			case SCSI_TYPE:
				if (strncmp("  Type:", start, 7))
					goto end_scsi;
				*tmp_name = '\0';

				if (strstr(start, "Direct-Access")) {
					sprintf(tmp_name, "sd%c", scsi_disk_count++);
					tmp[count].type = DISK;
				} else if (strstr(start, "Sequential-Access")) {
					sprintf(tmp_name, "st%c", scsi_tape_count++);
					tmp[count].type = TAPE;
				} else if (strstr(start, "CD-ROM")) {
					sprintf(tmp_name, "scd%c", scsi_cdrom_count++);
					tmp[count].type = CDROM;
				}

				if (*tmp_name) {
					tmp[count].name = strdup(tmp_name);
					log_message("SCSI/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
					tmp[count].bus = SCSI;
					count++;
				}
				
				state = SCSI_HOST;
			}
			
			start = next;
		}
		
	end_scsi:
	}

    
	/* ----------------------------------------------- */
	tmp[count].name = NULL;
	count++;

	medias = (struct media_info *) malloc(sizeof(struct media_info) * count);
	memcpy(medias, tmp, sizeof(struct media_info) * count);
}


/* Finds by media */
void get_medias(enum media_type media, char *** names, char *** models)
{
	struct media_info * m;
	char * tmp_names[50];
	char * tmp_models[50];
	int count;

	find_media();

	m = medias;

	count = 0;
	while (m && m->name) {
		if (m->type == media) {
			tmp_names[count] = strdup(m->name);
			tmp_models[count++] = strdup(m->model);
		}
		m++;
	}
	tmp_names[count] = NULL;
	tmp_models[count++] = NULL;

	*names = (char **) malloc(sizeof(char *) * count);
	memcpy(*names, tmp_names, sizeof(char *) * count);

	*models = (char **) malloc(sizeof(char *) * count);
	memcpy(*models, tmp_models, sizeof(char *) * count);
}