1/*-
2 * Copyright (c) 2013 Sandvine Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#include <sys/param.h>
30#include <sys/errno.h>
31#include <sys/stat.h>
32#include <err.h>
33#include <fcntl.h>
34#include <stdio.h>
35#include <stdlib.h>
36#include <string.h>
37#include <time.h>
38#include <unistd.h>
39#include "mfiutil.h"
40
41/* The autolearn period is given in seconds. */
42void
43mfi_autolearn_period(uint32_t period, char *buf, size_t sz)
44{
45	unsigned int d, h;
46	char *tmp;
47
48	d = period / (24 * 3600);
49	h = (period % (24 * 3600)) / 3600;
50
51	tmp = buf;
52	if (d != 0) {
53		tmp += snprintf(buf, sz, "%u day%s", d, d == 1 ? "" : "s");
54		sz -= tmp - buf;
55		if (h != 0) {
56			tmp += snprintf(tmp, sz, ", ");
57			sz -= 2;
58		}
59	}
60	if (h != 0)
61		snprintf(tmp, sz, "%u hour%s", h, h == 1 ? "" : "s");
62
63	if (d == 0 && h == 0)
64		snprintf(tmp, sz, "less than 1 hour");
65}
66
67/* The time to the next relearn is given in seconds since 1/1/2000. */
68void
69mfi_next_learn_time(uint32_t next_learn_time, char *buf, size_t sz)
70{
71	time_t basetime;
72	struct tm tm;
73	size_t len;
74
75	memset(&tm, 0, sizeof(tm));
76	tm.tm_year = 100;
77	basetime = timegm(&tm);
78	basetime += (time_t)next_learn_time;
79	len = snprintf(buf, sz, "%s", ctime(&basetime));
80	if (len > 0)
81		/* Get rid of the newline added by ctime(3). */
82		buf[len - 1] = '\0';
83}
84
85void
86mfi_autolearn_mode(uint8_t mode, char *buf, size_t sz)
87{
88
89	switch (mode) {
90	case 0:
91		snprintf(buf, sz, "enabled");
92		break;
93	case 1:
94		snprintf(buf, sz, "disabled");
95		break;
96	case 2:
97		snprintf(buf, sz, "warn via event");
98		break;
99	default:
100		snprintf(buf, sz, "mode 0x%02x", mode);
101		break;
102	}
103}
104
105int
106mfi_bbu_get_props(int fd, struct mfi_bbu_properties *props, uint8_t *statusp)
107{
108
109	return (mfi_dcmd_command(fd, MFI_DCMD_BBU_GET_PROP, props,
110	    sizeof(*props), NULL, 0, statusp));
111}
112
113int
114mfi_bbu_set_props(int fd, struct mfi_bbu_properties *props, uint8_t *statusp)
115{
116
117	return (mfi_dcmd_command(fd, MFI_DCMD_BBU_SET_PROP, props,
118	    sizeof(*props), NULL, 0, statusp));
119}
120
121static int
122start_bbu_learn(int ac, char **av __unused)
123{
124	uint8_t status;
125	int error, fd;
126
127	status = MFI_STAT_OK;
128	error = 0;
129
130	if (ac != 1) {
131		warnx("start learn: unexpected arguments");
132		return (EINVAL);
133	}
134
135	fd = mfi_open(mfi_unit, O_RDWR);
136	if (fd < 0) {
137		error = errno;
138		warn("mfi_open");
139		return (error);
140	}
141
142	if (mfi_dcmd_command(fd, MFI_DCMD_BBU_START_LEARN, NULL, 0, NULL, 0,
143	    &status) < 0) {
144		error = errno;
145		warn("Failed to start BBU learn");
146	} else if (status != MFI_STAT_OK) {
147		warnx("Failed to start BBU learn: %s", mfi_status(status));
148		error = EIO;
149	}
150
151	return (error);
152}
153MFI_COMMAND(start, learn, start_bbu_learn);
154
155static int
156update_bbu_props(int ac, char **av)
157{
158	struct mfi_bbu_properties props;
159	unsigned long delay;
160	uint8_t status;
161	int error, fd;
162	char *mode, *endptr;
163
164	status = MFI_STAT_OK;
165	error = 0;
166
167	if (ac != 3) {
168		warnx("bbu: property and value required");
169		return (EINVAL);
170	}
171
172	fd = mfi_open(mfi_unit, O_RDWR);
173	if (fd < 0) {
174		error = errno;
175		warn("mfi_open");
176		return (error);
177	}
178
179	if (mfi_bbu_get_props(fd, &props, &status) < 0) {
180		error = errno;
181		warn("Failed to get BBU properties");
182		goto done;
183	} else if (status != MFI_STAT_OK) {
184		warnx("Failed to get BBU properties: %s", mfi_status(status));
185		error = EIO;
186		goto done;
187	}
188
189	if (strcmp(av[1], "learn-delay") == 0) {
190		delay = strtoul(av[2], &endptr, 10);
191		if (strlen(av[2]) == 0 || *endptr != '\0' || delay > 255) {
192			warnx("Invalid learn delay '%s'", av[2]);
193			error = EINVAL;
194			goto done;
195		}
196
197		props.learn_delay_interval = delay;
198	} else if (strcmp(av[1], "autolearn-mode") == 0) {
199		mode = av[2];
200
201		if (strcmp(av[2], "enable") == 0)
202			props.auto_learn_mode = 0;
203		else if (strcmp(av[2], "disable") == 0)
204			props.auto_learn_mode = 1;
205		else if (mode[0] >= '0' && mode[0] <= '2' && mode[1] == '\0')
206			props.auto_learn_mode = mode[0] - '0';
207		else {
208			warnx("Invalid mode '%s'", mode);
209			error = EINVAL;
210			goto done;
211		}
212	} else if (strcmp(av[1], "bbu-mode") == 0) {
213		if (props.bbu_mode == 0) {
214			warnx("This BBU does not implement different modes");
215			error = EINVAL;
216			goto done;
217		}
218
219		/* The mode must be an integer between 1 and 5. */
220		mode = av[2];
221		if (mode[0] < '1' || mode[0] > '5' || mode[1] != '\0') {
222			warnx("Invalid mode '%s'", mode);
223			error = EINVAL;
224			goto done;
225		}
226
227		props.bbu_mode = mode[0] - '0';
228	} else {
229		warnx("bbu: Invalid command '%s'", av[1]);
230		error = EINVAL;
231		goto done;
232	}
233
234	if (mfi_bbu_set_props(fd, &props, &status) < 0) {
235		error = errno;
236		warn("Failed to set BBU properties");
237		goto done;
238	} else if (status != MFI_STAT_OK) {
239		warnx("Failed to set BBU properties: %s", mfi_status(status));
240		error = EIO;
241		goto done;
242	}
243
244done:
245	close(fd);
246
247	return (error);
248}
249MFI_COMMAND(top, bbu, update_bbu_props);
250