xref: /freebsd/usr.sbin/mpsutil/mps_flash.c (revision 069ac184)
1 /*-
2  * Copyright (c) 2015 Baptiste Daroussin <bapt@FreeBSD.org>
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 #include <sys/cdefs.h>
27 #include <sys/stat.h>
28 #include <sys/param.h>
29 #include <sys/mman.h>
30 #include <sys/endian.h>
31 
32 #include <errno.h>
33 #include <err.h>
34 #include <fcntl.h>
35 #include <stdbool.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <unistd.h>
40 
41 #include "mpsutil.h"
42 
43 MPS_TABLE(top, flash);
44 
45 static int
46 flash_save(int argc, char **argv)
47 {
48 	const char *firmware_file;
49 	unsigned char *firmware_buffer = NULL;
50 	int error, fd, size;
51 	bool bios = false;
52 	ssize_t written = 0, ret = 0;
53 
54 	if (argc < 2) {
55 		warnx("missing argument: expecting 'firmware' or bios'");
56 		return (EINVAL);
57 	}
58 
59 	if (strcmp(argv[1], "bios") == 0) {
60 		bios = true;
61 	} else if (strcmp(argv[1], "firmware") != 0) {
62 		warnx("Invalid argument '%s', expecting 'firmware' or 'bios'",
63 		    argv[1]);
64 	}
65 
66 	if (argc > 4) {
67 		warnx("save %s: extra arguments", argv[1]);
68 		return (EINVAL);
69 	}
70 
71 	firmware_file = argv[1];
72 	if (argc == 3) {
73 		firmware_file = argv[2];
74 	}
75 
76 	fd = mps_open(mps_unit);
77 	if (fd < 0) {
78 		error = errno;
79 		warn("mps_open");
80 		return (error);
81 	}
82 
83 	if ((size = mps_firmware_get(fd, &firmware_buffer, bios)) < 0) {
84 		warnx("Fail to save %s", argv[1]);
85 		close(fd);
86 		return (1);
87 	}
88 
89 	close(fd);
90 	if (size > 0) {
91 		fd = open(firmware_file, O_CREAT | O_TRUNC | O_RDWR, 0644);
92 		if (fd <0) {
93 			error = errno;
94 			warn("open");
95 			free(firmware_buffer);
96 			return (error);
97 		}
98 		while (written != size) {
99 			if ((ret = write(fd, firmware_buffer + written, size - written)) <0) {
100 				error = errno;
101 				warn("write");
102 				free(firmware_buffer);
103 				close(fd);
104 				return (error);
105 			}
106 			written += ret;
107 		}
108 		close(fd);
109 	}
110 	free(firmware_buffer);
111 	printf("%s successfully saved as %s\n", argv[1], firmware_file);
112 	return (0);
113 }
114 
115 MPS_COMMAND(flash, save, flash_save, "[firmware|bios] [file]",
116     "Save firmware/bios into a file");
117 
118 static int
119 flash_update(int argc, char **argv)
120 {
121 	int error, fd;
122 	unsigned char *mem = NULL;
123 	struct stat st;
124 	bool bios = false;
125 	MPI2_FW_IMAGE_HEADER *fwheader;
126 	MPI2_IOC_FACTS_REPLY *facts;
127 
128 	if (argc < 2) {
129 		warnx("missing argument: expecting 'firmware' or bios'");
130 		return (EINVAL);
131 	}
132 
133 	if (strcmp(argv[1], "bios") == 0) {
134 		bios = true;
135 	} else if (strcmp(argv[1], "firmware") != 0) {
136 		warnx("Invalid argument '%s', expecting 'firmware' or 'bios'",
137 		    argv[1]);
138 	}
139 
140 	if (argc > 4) {
141 		warnx("update firmware: extra arguments");
142 		return (EINVAL);
143 	}
144 
145 	if (argc != 3) {
146 		warnx("no firmware specified");
147 		return (EINVAL);
148 	}
149 
150 	if (stat(argv[2], &st) == -1) {
151 		error = errno;
152 		warn("stat");
153 		return (error);
154 	}
155 
156 	fd = open(argv[2], O_RDONLY);
157 	if (fd < 0) {
158 		error = errno;
159 		warn("open");
160 		return (error);
161 	}
162 
163 	mem = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
164 	if (mem == MAP_FAILED) {
165 		error = errno;
166 		warn("mmap");
167 		close(fd);
168 		return (error);
169 	}
170 	close(fd);
171 
172 	fd = mps_open(mps_unit);
173 	if (fd < 0) {
174 		error = errno;
175 		warn("mps_open");
176 		munmap(mem, st.st_size);
177 		return (error);
178 	}
179 
180 	if ((facts = mps_get_iocfacts(fd)) == NULL) {
181 		warnx("could not get controller IOCFacts\n");
182 		munmap(mem, st.st_size);
183 		close(fd);
184 		return (EINVAL);
185 	}
186 
187 	if (bios) {
188 		/* Check boot record magic number */
189 		if (((mem[0x01]<<8) + mem[0x00]) != 0xaa55) {
190 			warnx("Invalid bios: no boot record magic number");
191 			munmap(mem, st.st_size);
192 			close(fd);
193 			free(facts);
194 			return (1);
195 		}
196 		if ((st.st_size % 512) != 0) {
197 			warnx("Invalid bios: size not a multiple of 512");
198 			munmap(mem, st.st_size);
199 			close(fd);
200 			free(facts);
201 			return (1);
202 		}
203 	} else {
204 		fwheader = (MPI2_FW_IMAGE_HEADER *)mem;
205 		if (le16toh(fwheader->VendorID) != MPI2_MFGPAGE_VENDORID_LSI) {
206 			warnx("Invalid firmware:");
207 			warnx("  Expected Vendor ID: %04x",
208 			    MPI2_MFGPAGE_VENDORID_LSI);
209 			warnx("  Image Vendor ID: %04x", le16toh(fwheader->VendorID));
210 			munmap(mem, st.st_size);
211 			close(fd);
212 			free(facts);
213 			return (1);
214 		}
215 
216 		if (le16toh(fwheader->ProductID) != facts->ProductID) {
217 			warnx("Invalid image:");
218 			warnx("  Expected Product ID: %04x", facts->ProductID);
219 			warnx("  Image Product ID: %04x", le16toh(fwheader->ProductID));
220 			munmap(mem, st.st_size);
221 			close(fd);
222 			free(facts);
223 			return (1);
224 		}
225 	}
226 
227 	printf("Updating %s...\n", argv[1]);
228 	if (mps_firmware_send(fd, mem, st.st_size, bios) < 0) {
229 		warnx("Fail to update %s", argv[1]);
230 		munmap(mem, st.st_size);
231 		close(fd);
232 		free(facts);
233 		return (1);
234 	}
235 
236 	munmap(mem, st.st_size);
237 	close(fd);
238 	free(facts);
239 	printf("%s successfully updated\n", argv[1]);
240 	return (0);
241 }
242 
243 MPS_COMMAND(flash, update, flash_update, "[firmware|bios] file",
244     "Update firmware/bios");
245