From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 8.mo4.mail-out.ovh.net ([188.165.33.112] helo=mo4.mail-out.ovh.net) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1T0Wfl-0001Xu-Uw for barebox@lists.infradead.org; Sun, 12 Aug 2012 11:49:34 +0000 Received: from mail628.ha.ovh.net (b7.ovh.net [213.186.33.57]) by mo4.mail-out.ovh.net (Postfix) with SMTP id 0D2121054319 for ; Sun, 12 Aug 2012 13:54:09 +0200 (CEST) From: Jean-Christophe PLAGNIOL-VILLARD Date: Sun, 12 Aug 2012 13:49:37 +0200 Message-Id: <1344772179-13591-2-git-send-email-plagnioj@jcrosoft.com> In-Reply-To: <1344772179-13591-1-git-send-email-plagnioj@jcrosoft.com> References: <20120812114647.GF6271@game.jcrosoft.org> <1344772179-13591-1-git-send-email-plagnioj@jcrosoft.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/4] filetype: add fat filesystem support To: barebox@lists.infradead.org Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- common/filetype.c | 20 ++++++++++++++++++++ include/filetype.h | 1 + 2 files changed, 21 insertions(+) diff --git a/common/filetype.c b/common/filetype.c index 1a5b82d..e736d43 100644 --- a/common/filetype.c +++ b/common/filetype.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -40,6 +41,7 @@ static const char *filetype_str[] = { [filetype_aimage] = "Android boot image", [filetype_sh] = "Bourne Shell", [filetype_mips_barebox] = "MIPS barebox image", + [filetype_fat] = "FAT filesytem", }; const char *file_type_to_string(enum filetype f) @@ -50,6 +52,22 @@ const char *file_type_to_string(enum filetype f) return NULL; } +static int is_fat(u8 *buf) +{ + if (get_unaligned_le16(&buf[510]) != 0xAA55) + return 0; + + /* FAT */ + if ((get_unaligned_le32(&buf[54]) & 0xFFFFFF) == 0x544146) + return 1; + + /* FAT32 */ + if ((get_unaligned_le32(&buf[82]) & 0xFFFFFF) == 0x544146) + return 1; + + return 0; +} + enum filetype file_detect_type(void *_buf) { u32 *buf = _buf; @@ -81,6 +99,8 @@ enum filetype file_detect_type(void *_buf) return filetype_aimage; if (strncmp(buf8 + 0x10, "barebox", 7) == 0) return filetype_mips_barebox; + if (is_fat(buf8)) + return filetype_fat; return filetype_unknown; } diff --git a/include/filetype.h b/include/filetype.h index f5de8ed..179ec0f 100644 --- a/include/filetype.h +++ b/include/filetype.h @@ -18,6 +18,7 @@ enum filetype { filetype_aimage, filetype_sh, filetype_mips_barebox, + filetype_fat, }; const char *file_type_to_string(enum filetype f); -- 1.7.10.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox