firmware-utils/mkplanexfw: new firmware generation tool for the Planex MZK-W04NU device
SVN-Revision: 14410
This commit is contained in:
Gabor Juhos
parent
1adabd363c
commit
03f3002a17
@ -14,6 +14,10 @@ define cc
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$(CC) $(HOST_CFLAGS) -include endian.h -o $(PKG_BUILD_DIR)/bin/$(1) src/$(1).c $(2)
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endef
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define cc2
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$(CC) $(HOST_CFLAGS) -include endian.h -o $(PKG_BUILD_DIR)/bin/$(firstword $(1)) $(foreach src,$(1),src/$(src).c) $(2)
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endef
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define Build/Compile
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mkdir -p $(PKG_BUILD_DIR)/bin
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$(call cc,addpattern)
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@ -34,6 +38,7 @@ define Build/Compile
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$(call cc,imagetag)
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$(call cc,add_header)
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$(call cc,makeamitbin)
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$(call cc2,mkplanexfw sha1)
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endef
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define Build/Install
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207
tools/firmware-utils/src/mkplanexfw.c
Normal file
207
tools/firmware-utils/src/mkplanexfw.c
Normal file
@ -0,0 +1,207 @@
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/*
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <unistd.h> /* for unlink() */
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#include <libgen.h>
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#include <getopt.h> /* for getopt() */
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#include <stdarg.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include "sha1.h"
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#if (__BYTE_ORDER == __BIG_ENDIAN)
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# define HOST_TO_BE32(x) (x)
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# define BE32_TO_HOST(x) (x)
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#else
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# define HOST_TO_BE32(x) bswap_32(x)
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# define BE32_TO_HOST(x) bswap_32(x)
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#endif
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struct planex_hdr {
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uint8_t sha1sum[20];
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char version[8];
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uint8_t unk1[2];
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uint32_t datalen;
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} __attribute__ ((packed));
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/*
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* Globals
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*/
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static char *ifname;
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static char *progname;
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static char *ofname;
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static char *version = "1.00.00";
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/*
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* Message macros
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*/
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#define ERR(fmt, ...) do { \
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fflush(0); \
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fprintf(stderr, "[%s] *** error: " fmt "\n", \
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progname, ## __VA_ARGS__ ); \
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} while (0)
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#define ERRS(fmt, ...) do { \
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int save = errno; \
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fflush(0); \
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fprintf(stderr, "[%s] *** error: " fmt "\n", \
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progname, ## __VA_ARGS__, strerror(save)); \
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} while (0)
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void usage(int status)
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{
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FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
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struct board_info *board;
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fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
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fprintf(stream,
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"\n"
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"Options:\n"
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" -i <file> read input from the file <file>\n"
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" -o <file> write output to the file <file>\n"
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" -v <version> set image version to <version>\n"
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" -h show this screen\n"
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);
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exit(status);
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}
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int main(int argc, char *argv[])
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{
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int res = EXIT_FAILURE;
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int buflen;
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int err;
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struct stat st;
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char *buf;
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struct planex_hdr *hdr;
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sha1_context ctx;
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uint32_t t = HOST_TO_BE32(2);
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FILE *outfile, *infile;
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progname = basename(argv[0]);
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while ( 1 ) {
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int c;
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c = getopt(argc, argv, "i:o:v:h");
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if (c == -1)
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break;
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switch (c) {
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case 'i':
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ifname = optarg;
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break;
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case 'o':
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ofname = optarg;
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break;
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case 'v':
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version = optarg;
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break;
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case 'h':
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usage(EXIT_SUCCESS);
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break;
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default:
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usage(EXIT_FAILURE);
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break;
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}
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}
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if (ifname == NULL) {
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ERR("no input file specified");
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goto err;
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}
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if (ofname == NULL) {
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ERR("no output file specified");
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goto err;
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}
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err = stat(ifname, &st);
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if (err){
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ERRS("stat failed on %s", ifname);
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goto err;
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}
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buflen = (st.st_size + 3) & ~3;
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buflen += sizeof(*hdr);
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buf = malloc(buflen);
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if (!buf) {
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ERR("no memory for buffer\n");
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goto err;
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}
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memset(buf, 0xff, buflen);
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hdr = (struct planex_hdr *)buf;
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hdr->datalen = HOST_TO_BE32(buflen - sizeof(*hdr));
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hdr->unk1[0] = 0x04;
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hdr->unk1[1] = 0x08;
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snprintf(hdr->version, sizeof(hdr->version), "%s", version);
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infile = fopen(ifname, "r");
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if (infile == NULL) {
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ERRS("could not open \"%s\" for reading", ifname);
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goto err_free;
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}
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errno = 0;
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fread(buf + sizeof(*hdr), st.st_size, 1, infile);
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if (errno != 0) {
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ERRS("unable to read from file %s", ifname);
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goto err_close_in;
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}
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sha1_starts(&ctx);
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sha1_update(&ctx, (uchar *) &t, sizeof(t));
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sha1_update(&ctx, buf + sizeof(*hdr), buflen - sizeof(*hdr));
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sha1_finish(&ctx, hdr->sha1sum);
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outfile = fopen(ofname, "w");
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if (outfile == NULL) {
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ERRS("could not open \"%s\" for writing", ofname);
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goto err_close_in;
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}
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errno = 0;
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fwrite(buf, buflen, 1, outfile);
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if (errno) {
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ERRS("unable to write to file %s", ofname);
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goto err_close_out;
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}
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res = EXIT_SUCCESS;
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out_flush:
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fflush(outfile);
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err_close_out:
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fclose(outfile);
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if (res != EXIT_SUCCESS) {
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unlink(ofname);
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}
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err_close_in:
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fclose(infile);
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err_free:
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free(buf);
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err:
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return res;
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}
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443
tools/firmware-utils/src/sha1.c
Normal file
443
tools/firmware-utils/src/sha1.c
Normal file
@ -0,0 +1,443 @@
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/*
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* FIPS-180-1 compliant SHA-1 implementation
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*
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* Copyright (C) 2003-2006 Christophe Devine
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License, version 2.1 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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/*
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* The SHA-1 standard was published by NIST in 1993.
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*
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* http://www.itl.nist.gov/fipspubs/fip180-1.htm
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*/
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#ifndef _CRT_SECURE_NO_DEPRECATE
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#define _CRT_SECURE_NO_DEPRECATE 1
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#endif
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#include <string.h>
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#include <stdio.h>
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#include "sha1.h"
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/*
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* 32-bit integer manipulation macros (big endian)
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*/
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#ifndef GET_UINT32_BE
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#define GET_UINT32_BE(n,b,i) \
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{ \
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(n) = ( (ulong) (b)[(i) ] << 24 ) \
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| ( (ulong) (b)[(i) + 1] << 16 ) \
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| ( (ulong) (b)[(i) + 2] << 8 ) \
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| ( (ulong) (b)[(i) + 3] ); \
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}
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#endif
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#ifndef PUT_UINT32_BE
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#define PUT_UINT32_BE(n,b,i) \
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{ \
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(b)[(i) ] = (uchar) ( (n) >> 24 ); \
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(b)[(i) + 1] = (uchar) ( (n) >> 16 ); \
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(b)[(i) + 2] = (uchar) ( (n) >> 8 ); \
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(b)[(i) + 3] = (uchar) ( (n) ); \
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}
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#endif
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/*
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* Core SHA-1 functions
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*/
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void sha1_starts( sha1_context *ctx )
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{
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ctx->total[0] = 0;
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ctx->total[1] = 0;
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ctx->state[0] = 0x67452301;
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ctx->state[1] = 0xEFCDAB89;
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ctx->state[2] = 0x98BADCFE;
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ctx->state[3] = 0x10325476;
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ctx->state[4] = 0xC3D2E1F0;
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}
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void sha1_process( sha1_context *ctx, uchar data[64] )
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{
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ulong temp, W[16], A, B, C, D, E;
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GET_UINT32_BE( W[0], data, 0 );
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GET_UINT32_BE( W[1], data, 4 );
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GET_UINT32_BE( W[2], data, 8 );
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GET_UINT32_BE( W[3], data, 12 );
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GET_UINT32_BE( W[4], data, 16 );
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GET_UINT32_BE( W[5], data, 20 );
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GET_UINT32_BE( W[6], data, 24 );
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GET_UINT32_BE( W[7], data, 28 );
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GET_UINT32_BE( W[8], data, 32 );
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GET_UINT32_BE( W[9], data, 36 );
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GET_UINT32_BE( W[10], data, 40 );
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GET_UINT32_BE( W[11], data, 44 );
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GET_UINT32_BE( W[12], data, 48 );
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GET_UINT32_BE( W[13], data, 52 );
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GET_UINT32_BE( W[14], data, 56 );
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GET_UINT32_BE( W[15], data, 60 );
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#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
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#define R(t) \
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( \
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temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ \
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W[(t - 14) & 0x0F] ^ W[ t & 0x0F], \
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( W[t & 0x0F] = S(temp,1) ) \
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)
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#define P(a,b,c,d,e,x) \
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{ \
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e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
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}
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A = ctx->state[0];
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B = ctx->state[1];
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C = ctx->state[2];
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D = ctx->state[3];
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E = ctx->state[4];
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#define F(x,y,z) (z ^ (x & (y ^ z)))
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#define K 0x5A827999
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P( A, B, C, D, E, W[0] );
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P( E, A, B, C, D, W[1] );
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P( D, E, A, B, C, W[2] );
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P( C, D, E, A, B, W[3] );
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P( B, C, D, E, A, W[4] );
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P( A, B, C, D, E, W[5] );
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P( E, A, B, C, D, W[6] );
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P( D, E, A, B, C, W[7] );
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P( C, D, E, A, B, W[8] );
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P( B, C, D, E, A, W[9] );
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P( A, B, C, D, E, W[10] );
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P( E, A, B, C, D, W[11] );
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P( D, E, A, B, C, W[12] );
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P( C, D, E, A, B, W[13] );
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P( B, C, D, E, A, W[14] );
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P( A, B, C, D, E, W[15] );
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P( E, A, B, C, D, R(16) );
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P( D, E, A, B, C, R(17) );
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P( C, D, E, A, B, R(18) );
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P( B, C, D, E, A, R(19) );
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#undef K
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#undef F
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#define F(x,y,z) (x ^ y ^ z)
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#define K 0x6ED9EBA1
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P( A, B, C, D, E, R(20) );
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P( E, A, B, C, D, R(21) );
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P( D, E, A, B, C, R(22) );
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P( C, D, E, A, B, R(23) );
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P( B, C, D, E, A, R(24) );
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P( A, B, C, D, E, R(25) );
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P( E, A, B, C, D, R(26) );
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P( D, E, A, B, C, R(27) );
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P( C, D, E, A, B, R(28) );
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P( B, C, D, E, A, R(29) );
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P( A, B, C, D, E, R(30) );
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P( E, A, B, C, D, R(31) );
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P( D, E, A, B, C, R(32) );
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P( C, D, E, A, B, R(33) );
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P( B, C, D, E, A, R(34) );
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P( A, B, C, D, E, R(35) );
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P( E, A, B, C, D, R(36) );
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P( D, E, A, B, C, R(37) );
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P( C, D, E, A, B, R(38) );
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P( B, C, D, E, A, R(39) );
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#undef K
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#undef F
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#define F(x,y,z) ((x & y) | (z & (x | y)))
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#define K 0x8F1BBCDC
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P( A, B, C, D, E, R(40) );
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P( E, A, B, C, D, R(41) );
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P( D, E, A, B, C, R(42) );
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P( C, D, E, A, B, R(43) );
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P( B, C, D, E, A, R(44) );
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P( A, B, C, D, E, R(45) );
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P( E, A, B, C, D, R(46) );
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P( D, E, A, B, C, R(47) );
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P( C, D, E, A, B, R(48) );
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P( B, C, D, E, A, R(49) );
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P( A, B, C, D, E, R(50) );
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P( E, A, B, C, D, R(51) );
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P( D, E, A, B, C, R(52) );
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P( C, D, E, A, B, R(53) );
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P( B, C, D, E, A, R(54) );
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P( A, B, C, D, E, R(55) );
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P( E, A, B, C, D, R(56) );
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P( D, E, A, B, C, R(57) );
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P( C, D, E, A, B, R(58) );
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P( B, C, D, E, A, R(59) );
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#undef K
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#undef F
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#define F(x,y,z) (x ^ y ^ z)
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#define K 0xCA62C1D6
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P( A, B, C, D, E, R(60) );
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P( E, A, B, C, D, R(61) );
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P( D, E, A, B, C, R(62) );
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P( C, D, E, A, B, R(63) );
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P( B, C, D, E, A, R(64) );
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P( A, B, C, D, E, R(65) );
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P( E, A, B, C, D, R(66) );
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P( D, E, A, B, C, R(67) );
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P( C, D, E, A, B, R(68) );
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P( B, C, D, E, A, R(69) );
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P( A, B, C, D, E, R(70) );
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P( E, A, B, C, D, R(71) );
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P( D, E, A, B, C, R(72) );
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P( C, D, E, A, B, R(73) );
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P( B, C, D, E, A, R(74) );
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P( A, B, C, D, E, R(75) );
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P( E, A, B, C, D, R(76) );
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P( D, E, A, B, C, R(77) );
|
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P( C, D, E, A, B, R(78) );
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P( B, C, D, E, A, R(79) );
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#undef K
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#undef F
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ctx->state[0] += A;
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ctx->state[1] += B;
|
||||
ctx->state[2] += C;
|
||||
ctx->state[3] += D;
|
||||
ctx->state[4] += E;
|
||||
}
|
||||
|
||||
void sha1_update( sha1_context *ctx, uchar *input, uint length )
|
||||
{
|
||||
ulong left, fill;
|
||||
|
||||
if( ! length ) return;
|
||||
|
||||
left = ctx->total[0] & 0x3F;
|
||||
fill = 64 - left;
|
||||
|
||||
ctx->total[0] += length;
|
||||
ctx->total[0] &= 0xFFFFFFFF;
|
||||
|
||||
if( ctx->total[0] < length )
|
||||
ctx->total[1]++;
|
||||
|
||||
if( left && length >= fill )
|
||||
{
|
||||
memcpy( (void *) (ctx->buffer + left),
|
||||
(void *) input, fill );
|
||||
sha1_process( ctx, ctx->buffer );
|
||||
length -= fill;
|
||||
input += fill;
|
||||
left = 0;
|
||||
}
|
||||
|
||||
while( length >= 64 )
|
||||
{
|
||||
sha1_process( ctx, input );
|
||||
length -= 64;
|
||||
input += 64;
|
||||
}
|
||||
|
||||
if( length )
|
||||
{
|
||||
memcpy( (void *) (ctx->buffer + left),
|
||||
(void *) input, length );
|
||||
}
|
||||
}
|
||||
|
||||
static uchar sha1_padding[64] =
|
||||
{
|
||||
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
void sha1_finish( sha1_context *ctx, uchar digest[20] )
|
||||
{
|
||||
ulong last, padn;
|
||||
ulong high, low;
|
||||
uchar msglen[8];
|
||||
|
||||
high = ( ctx->total[0] >> 29 )
|
||||
| ( ctx->total[1] << 3 );
|
||||
low = ( ctx->total[0] << 3 );
|
||||
|
||||
PUT_UINT32_BE( high, msglen, 0 );
|
||||
PUT_UINT32_BE( low, msglen, 4 );
|
||||
|
||||
last = ctx->total[0] & 0x3F;
|
||||
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
|
||||
|
||||
sha1_update( ctx, sha1_padding, padn );
|
||||
sha1_update( ctx, msglen, 8 );
|
||||
|
||||
PUT_UINT32_BE( ctx->state[0], digest, 0 );
|
||||
PUT_UINT32_BE( ctx->state[1], digest, 4 );
|
||||
PUT_UINT32_BE( ctx->state[2], digest, 8 );
|
||||
PUT_UINT32_BE( ctx->state[3], digest, 12 );
|
||||
PUT_UINT32_BE( ctx->state[4], digest, 16 );
|
||||
}
|
||||
|
||||
/*
|
||||
* Output SHA-1(file contents), returns 0 if successful.
|
||||
*/
|
||||
int sha1_file( char *filename, uchar digest[20] )
|
||||
{
|
||||
FILE *f;
|
||||
size_t n;
|
||||
sha1_context ctx;
|
||||
uchar buf[1024];
|
||||
|
||||
if( ( f = fopen( filename, "rb" ) ) == NULL )
|
||||
return( 1 );
|
||||
|
||||
sha1_starts( &ctx );
|
||||
|
||||
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
|
||||
sha1_update( &ctx, buf, (uint) n );
|
||||
|
||||
sha1_finish( &ctx, digest );
|
||||
|
||||
fclose( f );
|
||||
return( 0 );
|
||||
}
|
||||
|
||||
/*
|
||||
* Output SHA-1(buf)
|
||||
*/
|
||||
void sha1_csum( uchar *buf, uint buflen, uchar digest[20] )
|
||||
{
|
||||
sha1_context ctx;
|
||||
|
||||
sha1_starts( &ctx );
|
||||
sha1_update( &ctx, buf, buflen );
|
||||
sha1_finish( &ctx, digest );
|
||||
}
|
||||
|
||||
/*
|
||||
* Output HMAC-SHA-1(key,buf)
|
||||
*/
|
||||
void sha1_hmac( uchar *key, uint keylen, uchar *buf, uint buflen,
|
||||
uchar digest[20] )
|
||||
{
|
||||
uint i;
|
||||
sha1_context ctx;
|
||||
uchar k_ipad[64];
|
||||
uchar k_opad[64];
|
||||
uchar tmpbuf[20];
|
||||
|
||||
memset( k_ipad, 0x36, 64 );
|
||||
memset( k_opad, 0x5C, 64 );
|
||||
|
||||
for( i = 0; i < keylen; i++ )
|
||||
{
|
||||
if( i >= 64 ) break;
|
||||
|
||||
k_ipad[i] ^= key[i];
|
||||
k_opad[i] ^= key[i];
|
||||
}
|
||||
|
||||
sha1_starts( &ctx );
|
||||
sha1_update( &ctx, k_ipad, 64 );
|
||||
sha1_update( &ctx, buf, buflen );
|
||||
sha1_finish( &ctx, tmpbuf );
|
||||
|
||||
sha1_starts( &ctx );
|
||||
sha1_update( &ctx, k_opad, 64 );
|
||||
sha1_update( &ctx, tmpbuf, 20 );
|
||||
sha1_finish( &ctx, digest );
|
||||
|
||||
memset( k_ipad, 0, 64 );
|
||||
memset( k_opad, 0, 64 );
|
||||
memset( tmpbuf, 0, 20 );
|
||||
memset( &ctx, 0, sizeof( sha1_context ) );
|
||||
}
|
||||
|
||||
#ifdef SELF_TEST
|
||||
/*
|
||||
* FIPS-180-1 test vectors
|
||||
*/
|
||||
static char *sha1_test_str[3] =
|
||||
{
|
||||
"abc",
|
||||
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
|
||||
NULL
|
||||
};
|
||||
|
||||
static uchar sha1_test_sum[3][20] =
|
||||
{
|
||||
{ 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
|
||||
0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
|
||||
{ 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
|
||||
0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
|
||||
{ 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
|
||||
0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
|
||||
};
|
||||
|
||||
/*
|
||||
* Checkup routine
|
||||
*/
|
||||
int sha1_self_test( void )
|
||||
{
|
||||
int i, j;
|
||||
uchar buf[1000];
|
||||
uchar sha1sum[20];
|
||||
sha1_context ctx;
|
||||
|
||||
for( i = 0; i < 3; i++ )
|
||||
{
|
||||
printf( " SHA-1 test #%d: ", i + 1 );
|
||||
|
||||
sha1_starts( &ctx );
|
||||
|
||||
if( i < 2 )
|
||||
sha1_update( &ctx, (uchar *) sha1_test_str[i],
|
||||
strlen( sha1_test_str[i] ) );
|
||||
else
|
||||
{
|
||||
memset( buf, 'a', 1000 );
|
||||
for( j = 0; j < 1000; j++ )
|
||||
sha1_update( &ctx, (uchar *) buf, 1000 );
|
||||
}
|
||||
|
||||
sha1_finish( &ctx, sha1sum );
|
||||
|
||||
if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
|
||||
{
|
||||
printf( "failed\n" );
|
||||
return( 1 );
|
||||
}
|
||||
|
||||
printf( "passed\n" );
|
||||
}
|
||||
|
||||
printf( "\n" );
|
||||
return( 0 );
|
||||
}
|
||||
#else
|
||||
int sha1_self_test( void )
|
||||
{
|
||||
printf( "SHA-1 self-test not available\n\n" );
|
||||
return( 1 );
|
||||
}
|
||||
#endif
|
||||
57
tools/firmware-utils/src/sha1.h
Normal file
57
tools/firmware-utils/src/sha1.h
Normal file
@ -0,0 +1,57 @@
|
||||
#ifndef _SHA1_H
|
||||
#define _SHA1_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#ifndef _STD_TYPES
|
||||
#define _STD_TYPES
|
||||
|
||||
#define uchar unsigned char
|
||||
#define uint unsigned int
|
||||
#define ulong unsigned long int
|
||||
|
||||
#endif
|
||||
|
||||
typedef struct
|
||||
{
|
||||
ulong total[2];
|
||||
ulong state[5];
|
||||
uchar buffer[64];
|
||||
}
|
||||
sha1_context;
|
||||
|
||||
/*
|
||||
* Core SHA-1 functions
|
||||
*/
|
||||
void sha1_starts( sha1_context *ctx );
|
||||
void sha1_update( sha1_context *ctx, uchar *input, uint length );
|
||||
void sha1_finish( sha1_context *ctx, uchar digest[20] );
|
||||
|
||||
/*
|
||||
* Output SHA-1(file contents), returns 0 if successful.
|
||||
*/
|
||||
int sha1_file( char *filename, uchar digest[20] );
|
||||
|
||||
/*
|
||||
* Output SHA-1(buf)
|
||||
*/
|
||||
void sha1_csum( uchar *buf, uint buflen, uchar digest[20] );
|
||||
|
||||
/*
|
||||
* Output HMAC-SHA-1(key,buf)
|
||||
*/
|
||||
void sha1_hmac( uchar *key, uint keylen, uchar *buf, uint buflen,
|
||||
uchar digest[20] );
|
||||
|
||||
/*
|
||||
* Checkup routine
|
||||
*/
|
||||
int sha1_self_test( void );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* sha1.h */
|
||||
Loading…
Reference in New Issue
Block a user