lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240912120548.15877-6-pali@kernel.org>
Date: Thu, 12 Sep 2024 14:05:46 +0200
From: Pali Rohár <pali@...nel.org>
To: Steve French <sfrench@...ba.org>,
	Paulo Alcantara <pc@...guebit.com>,
	Ronnie Sahlberg <ronniesahlberg@...il.com>
Cc: linux-cifs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] cifs: Recognize SFU socket type

SFU since its (first) version 3.0 supports AF_LOCAL sockets and stores them
on filesytem as system file with one zero byte. Add support for detecting
this SFU socket type into cifs_sfu_type() function.

With this change cifs_sfu_type() would correctly detect all special file
types created by SFU: fifo, socket, symlink, block and char.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 fs/smb/client/inode.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index 70c32b40ede0..331a86074ae7 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -545,7 +545,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
 		fattr->cf_mode |= S_IFIFO;
 		fattr->cf_dtype = DT_FIFO;
 		return 0;
-	} else if (fattr->cf_eof < 8) {
+	} else if (fattr->cf_eof > 1 && fattr->cf_eof < 8) {
 		fattr->cf_mode |= S_IFREG;
 		fattr->cf_dtype = DT_REG;
 		return -EINVAL;	 /* EOPNOTSUPP? */
@@ -655,6 +655,10 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
 			fattr->cf_dtype = DT_REG;
 			rc = -EOPNOTSUPP;
 		}
+	} else if ((rc == 0) && (bytes_read == 1) && (pbuf[0] == '\0')) {
+		cifs_dbg(FYI, "Socket\n");
+		fattr->cf_mode |= S_IFSOCK;
+		fattr->cf_dtype = DT_SOCK;
 	} else {
 		fattr->cf_mode |= S_IFREG; /* then it is a file */
 		fattr->cf_dtype = DT_REG;
-- 
2.20.1


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ