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-rw-r--r--src/file_jks.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/file_jks.c b/src/file_jks.c
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+++ b/src/file_jks.c
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+/*
+
+ File: file_jks.c
+
+ Copyright (C) 2016 Christophe GRENIER <grenier@cgsecurity.org>
+
+ This software 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 2 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, write the Free Software Foundation, Inc., 51
+ Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include <stdio.h>
+#include "types.h"
+#include "filegen.h"
+#include "common.h"
+
+static void register_header_check_jks(file_stat_t *file_stat);
+
+const file_hint_t file_hint_jks= {
+ .extension="jks",
+ .description="Java Keystore",
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_jks
+};
+
+/* http://metastatic.org/source/JKS.java */
+struct jks_header
+{
+ uint32_t magic;
+ uint32_t version;
+ uint32_t nbr_of_entries;
+} __attribute__ ((gcc_struct, __packed__));
+
+static int header_check_jks(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
+{
+ const struct jks_header *hdr=(const struct jks_header *)buffer;
+ if(be32(hdr->nbr_of_entries)==0)
+ return 0;
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_jks.extension;
+ file_recovery_new->min_filesize=sizeof(struct jks_header)+4+2+8;
+ return 1;
+}
+
+static void register_header_check_jks(file_stat_t *file_stat)
+{
+ static const unsigned char jks_header[8]= {
+ 0xfe, 0xed, 0xfe, 0xed, 0x00, 0x00, 0x00, 0x02,
+ };
+ register_header_check(0, jks_header, sizeof(jks_header), &header_check_jks, file_stat);
+}