summaryrefslogtreecommitdiffstats
path: root/docs/submodules/releng
diff options
context:
space:
mode:
authorJing Lu <lvjing5@huawei.com>2017-04-10 00:53:12 +0000
committerGerrit Code Review <gerrit@opnfv.org>2017-04-10 00:53:12 +0000
commit0330c1019dfe52e810625785a483173d88a9ab89 (patch)
treec1b01a777a09a031a8a9b33d2c1e5ec83d9dd478 /docs/submodules/releng
parenta80b4ce8afb5fc2a543380e45060c8009d65c7d2 (diff)
Update git submodules
* Update docs/submodules/yardstick from branch 'master' - Merge "cyclictest: use raw strings to escape \[8" - cyclictest: use raw strings to escape \[8 Change-Id: I36d93eacab2470f90af5653104ad5c07853411bf Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>
Diffstat (limited to 'docs/submodules/releng')
0 files changed, 0 insertions, 0 deletions
/a> 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
/*
 * (C) Copyright 2011 Free Electrons
 * David Wagner <david.wagner@free-electrons.com>
 *
 * Inspired from envcrc.c:
 * (C) Copyright 2001
 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>

#include "compiler.h"
#include <u-boot/crc.h>
#include <version.h>

#define CRC_SIZE sizeof(uint32_t)

static void usage(const char *exec_name)
{
	fprintf(stderr, "%s [-h] [-r] [-b] [-p <byte>] -s <environment partition size> -o <output> <input file>\n"
	       "\n"
	       "This tool takes a key=value input file (same as would a `printenv' show) and generates the corresponding environment image, ready to be flashed.\n"
	       "\n"
	       "\tThe input file is in format:\n"
	       "\t\tkey1=value1\n"
	       "\t\tkey2=value2\n"
	       "\t\t...\n"
	       "\t-r : the environment has multiple copies in flash\n"
	       "\t-b : the target is big endian (default is little endian)\n"
	       "\t-p <byte> : fill the image with <byte> bytes instead of 0xff bytes\n"
	       "\t-V : print version information and exit\n"
	       "\n"
	       "If the input file is \"-\", data is read from standard input\n",
	       exec_name);
}

long int xstrtol(const char *s)
{
	long int tmp;

	errno = 0;
	tmp = strtol(s, NULL, 0);
	if (!errno)
		return tmp;

	if (errno == ERANGE)
		fprintf(stderr, "Bad integer format: %s\n",  s);
	else
		fprintf(stderr, "Error while parsing %s: %s\n", s,
				strerror(errno));

	exit(EXIT_FAILURE);
}

int main(int argc, char **argv)
{
	uint32_t crc, targetendian_crc;
	const char *txt_filename = NULL, *bin_filename = NULL;
	int txt_fd, bin_fd;
	unsigned char *dataptr, *envptr;
	unsigned char *filebuf = NULL;
	unsigned int filesize = 0, envsize = 0, datasize = 0;
	int bigendian = 0;
	int redundant = 0;
	unsigned char padbyte = 0xff;

	int option;
	int ret = EXIT_SUCCESS;

	struct stat txt_file_stat;

	int fp, ep;
	const char *prg;

	prg = basename(argv[0]);

	/* Turn off getopt()'s internal error message */
	opterr = 0;

	/* Parse the cmdline */
	while ((option = getopt(argc, argv, ":s:o:rbp:hV")) != -1) {
		switch (option) {
		case 's':
			datasize = xstrtol(optarg);
			break;
		case 'o':
			bin_filename = strdup(optarg);
			if (!bin_filename) {
				fprintf(stderr, "Can't strdup() the output filename\n");
				return EXIT_FAILURE;
			}
			break;
		case 'r':
			redundant = 1;
			break;
		case 'b':
			bigendian = 1;
			break;
		case 'p':
			padbyte = xstrtol(optarg);
			break;
		case 'h':
			usage(prg);
			return EXIT_SUCCESS;
		case 'V':
			printf("%s version %s\n", prg, PLAIN_VERSION);
			return EXIT_SUCCESS;
		case ':':
			fprintf(stderr, "Missing argument for option -%c\n",
				optopt);
			usage(prg);
			return EXIT_FAILURE;
		default:
			fprintf(stderr, "Wrong option -%c\n", optopt);
			usage(prg);
			return EXIT_FAILURE;
		}
	}

	/* Check datasize and allocate the data */
	if (datasize == 0) {
		fprintf(stderr, "Please specify the size of the environment partition.\n");
		usage(prg);
		return EXIT_FAILURE;
	}

	dataptr = malloc(datasize * sizeof(*dataptr));
	if (!dataptr) {
		fprintf(stderr, "Can't alloc %d bytes for dataptr.\n",
				datasize);
		return EXIT_FAILURE;
	}

	/*
	 * envptr points to the beginning of the actual environment (after the
	 * crc and possible `redundant' byte
	 */
	envsize = datasize - (CRC_SIZE + redundant);
	envptr = dataptr + CRC_SIZE + redundant;

	/* Pad the environment with the padding byte */
	memset(envptr, padbyte, envsize);

	/* Open the input file ... */
	if (optind >= argc || strcmp(argv[optind], "-") == 0) {
		int readbytes = 0;
		int readlen = sizeof(*envptr) * 4096;
		txt_fd = STDIN_FILENO;

		do {
			filebuf = realloc(filebuf, readlen);
			if (!filebuf) {
				fprintf(stderr, "Can't realloc memory for the input file buffer\n");
				return EXIT_FAILURE;
			}
			readbytes = read(txt_fd, filebuf + filesize, readlen);
			if (errno) {
				fprintf(stderr, "Error while reading stdin: %s\n",
						strerror(errno));
				return EXIT_FAILURE;
			}
			filesize += readbytes;
		} while (readbytes == readlen);

	} else {
		txt_filename = argv[optind];
		txt_fd = open(txt_filename, O_RDONLY);
		if (txt_fd == -1) {
			fprintf(stderr, "Can't open \"%s\": %s\n",
					txt_filename, strerror(errno));
			return EXIT_FAILURE;
		}
		/* ... and check it */
		ret = fstat(txt_fd, &txt_file_stat);
		if (ret == -1) {
			fprintf(stderr, "Can't stat() on \"%s\": %s\n",
					txt_filename, strerror(errno));
			return EXIT_FAILURE;
		}

		filesize = txt_file_stat.st_size;

		filebuf = mmap(NULL, sizeof(*envptr) * filesize, PROT_READ,
			       MAP_PRIVATE, txt_fd, 0);
		if (filebuf == MAP_FAILED) {
			fprintf(stderr, "mmap (%zu bytes) failed: %s\n",
					sizeof(*envptr) * filesize,
					strerror(errno));
			fprintf(stderr, "Falling back to read()\n");

			filebuf = malloc(sizeof(*envptr) * filesize);
			ret = read(txt_fd, filebuf, sizeof(*envptr) * filesize);
			if (ret != sizeof(*envptr) * filesize) {
				fprintf(stderr, "Can't read the whole input file (%zu bytes): %s\n",
					sizeof(*envptr) * filesize,
					strerror(errno));

				return EXIT_FAILURE;
			}
		}
		ret = close(txt_fd);
	}
	/* The +1 is for the additionnal ending \0. See below. */
	if (filesize + 1 > envsize) {
		fprintf(stderr, "The input file is larger than the environment partition size\n");
		return EXIT_FAILURE;
	}

	/* Replace newlines separating variables with \0 */
	for (fp = 0, ep = 0 ; fp < filesize ; fp++) {
		if (filebuf[fp] == '\n') {
			if (ep == 0) {
				/*
				 * Newlines at the beginning of the file ?
				 * Ignore them.
				 */
				continue;
			} else if (filebuf[fp-1] == '\\') {
				/*
				 * Embedded newline in a variable.
				 *
				 * The backslash was added to the envptr; rewind
				 * and replace it with a newline
				 */
				ep--;
				envptr[ep++] = '\n';
			} else {
				/* End of a variable */
				envptr[ep++] = '\0';
			}
		} else {
			envptr[ep++] = filebuf[fp];
		}
	}
	/*
	 * Make sure there is a final '\0'
	 * And do it again on the next byte to mark the end of the environment.
	 */
	if (envptr[ep-1] != '\0') {
		envptr[ep++] = '\0';
		/*
		 * The text file doesn't have an ending newline.  We need to
		 * check the env size again to make sure we have room for two \0
		 */
		if (ep >= envsize) {
			fprintf(stderr, "The environment file is too large for the target environment storage\n");
			return EXIT_FAILURE;
		}
		envptr[ep] = '\0';
	} else {
		envptr[ep] = '\0';
	}

	/* Computes the CRC and put it at the beginning of the data */
	crc = crc32(0, envptr, envsize);
	targetendian_crc = bigendian ? cpu_to_be32(crc) : cpu_to_le32(crc);

	memcpy(dataptr, &targetendian_crc, sizeof(targetendian_crc));
	if (redundant)
		dataptr[sizeof(targetendian_crc)] = 1;

	if (!bin_filename || strcmp(bin_filename, "-") == 0) {
		bin_fd = STDOUT_FILENO;
	} else {
		bin_fd = creat(bin_filename, S_IRUSR | S_IWUSR | S_IRGRP |
					     S_IWGRP);
		if (bin_fd == -1) {
			fprintf(stderr, "Can't open output file \"%s\": %s\n",
					bin_filename, strerror(errno));
			return EXIT_FAILURE;
		}
	}

	if (write(bin_fd, dataptr, sizeof(*dataptr) * datasize) !=
			sizeof(*dataptr) * datasize) {
		fprintf(stderr, "write() failed: %s\n", strerror(errno));
		return EXIT_FAILURE;
	}

	ret = close(bin_fd);

	return ret;
}