mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 3/4] add ext fs detection support
Date: Mon,  3 Dec 2012 11:27:47 +0100	[thread overview]
Message-ID: <1354530468-25823-4-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1354530468-25823-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 common/filetype.c  |    8 ++++++++
 include/filetype.h |    1 +
 2 files changed, 9 insertions(+)

diff --git a/common/filetype.c b/common/filetype.c
index c1bd11d..748e364 100644
--- a/common/filetype.c
+++ b/common/filetype.c
@@ -47,6 +47,7 @@ static const struct filetype_str filetype_str[] = {
 	[filetype_mbr] = { "MBR sector", "mbr" },
 	[filetype_bmp] = { "BMP image", "bmp" },
 	[filetype_png] = { "PNG image", "png" },
+	[filetype_ext] = { "ext filesystem", "ext" },
 };
 
 const char *file_type_to_string(enum filetype f)
@@ -110,6 +111,7 @@ enum filetype file_detect_type(void *_buf, size_t bufsize)
 	u32 *buf = _buf;
 	u64 *buf64 = _buf;
 	u8 *buf8 = _buf;
+	u16 *buf16 = _buf;
 	enum filetype type;
 
 	if (bufsize < 9)
@@ -161,6 +163,12 @@ enum filetype file_detect_type(void *_buf, size_t bufsize)
 	if (type != filetype_unknown)
 		return type;
 
+	if (bufsize < 1536)
+		return filetype_unknown;
+
+	if (buf16[512 + 28] == le16_to_cpu(0xef53))
+		return filetype_ext;
+
 	return filetype_unknown;
 }
 
diff --git a/include/filetype.h b/include/filetype.h
index 5fac531..91139db 100644
--- a/include/filetype.h
+++ b/include/filetype.h
@@ -22,6 +22,7 @@ enum filetype {
 	filetype_mbr,
 	filetype_bmp,
 	filetype_png,
+	filetype_ext,
 	filetype_max,
 };
 
-- 
1.7.10.4


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

  parent reply	other threads:[~2012-12-03 10:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-03 10:27 [PATCH] ext4 filesystem support Sascha Hauer
2012-12-03 10:27 ` [PATCH 1/4] ls command: call stat() only when necessary Sascha Hauer
2012-12-03 10:27 ` [PATCH 2/4] filetype: Pass bufsize Sascha Hauer
2012-12-03 10:27 ` Sascha Hauer [this message]
2012-12-03 10:27 ` [PATCH 4/4] fs: implement initial ext4 support from U-Boot Sascha Hauer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1354530468-25823-4-git-send-email-s.hauer@pengutronix.de \
    --to=s.hauer@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox