summaryrefslogtreecommitdiffstats
path: root/src/qmode.c
blob: 64ee94ac384b2550858b2d942696d62fcde682fe (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
/*
 *  0xFFFF - Open Free Fiasco Firmware Flasher
 *  Copyright (C) 2008  pancake <pancake@youterm.com>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "main.h"
#include "os.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>

#if HAVE_SQUEUE

struct squeue_t *q;
struct squeue_t *p;

int fork_enabled = 0;
int dofork()
{
	if (fork_enabled)
		return fork();
	return 0;
}

void process_message(char *msg)
{
	char *str;
	char *arg;
	int c=1;
	if (msg == NULL)
		return;
	printf("[x] (%s)\n", msg);
	str = strdup(msg);
	arg = strchr(str, ':');
	if (c!=0) {
		arg[0]='\0';
		arg = arg +1;
		if (!strcmp(str, "flash")) {
			const char *type = fpid_file(arg);
			if (type == NULL) {
				squeue_push2(p, "error", "Unknown piece format", 1);
			} else flash_image(arg, type, NULL, NULL, NULL);
		} else
		if (!strcmp(str, "reset")) {
			if (reboot_board() == 0) {
				squeue_push2(p,"info", "Device reboots", 1);
			} else squeue_push2(p,"error", "Cannot reboot device", 1);
		} else
		if (!strcmp(str, "info")) {
			get_rd_flags();
			squeue_push2(p, "info", strbuf, 1);
			get_nolo_version();
			squeue_push2(p, "info", strbuf, 1);
			get_usb_mode();
			squeue_push2(p, "info", strbuf, 1);
		} else
			squeue_push2(p, "error", "invalid command", 0);
	} else {
		squeue_push2(p, "error", "invalid command format", 0);
	}
	free(str);
}

static void cc()
{
	squeue_close(p);
	squeue_close(q);
	printf("pipes closed\n");
	squeue_release("/tmp/0xFFFF.1");
	squeue_release("/tmp/0xFFFF.2");
	exit(1);
}

int queue_mode()
{
	int pid = 0;
	char *msg;

	signal(SIGINT, cc);

	pid = dofork();
	if (pid) {
		wait(&pid);
		return 0;
	} else {
		p = squeue_open("/tmp/0xFFFF.1", Q_CREAT);
		q = squeue_open("/tmp/0xFFFF.2", Q_CREAT);
		if (p == NULL || q == NULL) {
			fprintf(stderr, "Cannot open queue files\n");
			return 0;
		}
		chmod("/tmp/0xFFFF.1", 0666);
		chmod("/tmp/0xFFFF.2", 0666);
		pid = dofork();
		if (pid) {
			printf( "Entering into shared queue server mode.\n"
			"Type $ kill -9 %d # to stop\n"
			"NOTE: Manually remove the /tmp/.0xFFFF.* files to solve perm problems\n", pid);
		} else {
			do {
#if HAVE_USB
				if (connect_via_usb()) {
					fprintf(stderr, "Cannot connect to device. It is possibly not in boot stage.\n");
					squeue_push2(p, "error", "Cannot connect to the device", 1);
					return 0;
				}
#endif
				printf("Waiting for a client in shared queues..\n");
				setsid();
				while(1) {
					msg = squeue_get(q, 1);
					if (msg) {
						process_message(msg);
						squeue_pop(q);
					}
				}
			printf("Connection restarted\n");
			} while (1);
		}
	}
	return 0;
}
#else
int queue_mode()
{
	/* dummy */
	fprintf(stderr, "No HAVE_SQUEUE support\n");
}
#endif