The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 518549c120e671c4906f77d1802b97e9b23f673a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024061319-machine-lanky-74ba@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

518549c120e6 ("cifs: fix creating sockets when using sfu mount options") c6ff459037b2 ("smb: client: instantiate when creating SFU files") b0348e459c83 ("smb: client: introduce cifs_sfu_make_node()") 45e724022e27 ("smb: client: set correct file type from NFS reparse points") 539aad7f14da ("smb: client: introduce ->parse_reparse_point()") ed3e0a149b58 ("smb: client: implement ->query_reparse_point() for SMB1") 72bc63f5e23a ("smb3: fix creating FIFOs when mounting with "sfu" mount option")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 518549c120e671c4906f77d1802b97e9b23f673a Mon Sep 17 00:00:00 2001 From: Steve French stfrench@microsoft.com Date: Wed, 29 May 2024 18:16:56 -0500 Subject: [PATCH] cifs: fix creating sockets when using sfu mount options

When running fstest generic/423 with sfu mount option, it was being skipped due to inability to create sockets:

generic/423 [not run] cifs does not support mknod/mkfifo

which can also be easily reproduced with their af_unix tool:

./src/af_unix /mnt1/socket-two bind: Operation not permitted

Fix sfu mount option to allow creating and reporting sockets.

Cc: stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com

diff --git a/fs/smb/client/cifspdu.h b/fs/smb/client/cifspdu.h index c46d418c1c0c..a2072ab9e586 100644 --- a/fs/smb/client/cifspdu.h +++ b/fs/smb/client/cifspdu.h @@ -2574,7 +2574,7 @@ typedef struct {

struct win_dev { - unsigned char type[8]; /* IntxCHR or IntxBLK or LnxFIFO*/ + unsigned char type[8]; /* IntxCHR or IntxBLK or LnxFIFO or LnxSOCK */ __le64 major; __le64 minor; } __attribute__((packed)); diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index 262576573eb5..4a8aa1de9522 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -606,6 +606,10 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path, mnr = le64_to_cpu(*(__le64 *)(pbuf+16)); fattr->cf_rdev = MKDEV(mjr, mnr); } + } else if (memcmp("LnxSOCK", pbuf, 8) == 0) { + cifs_dbg(FYI, "Socket\n"); + fattr->cf_mode |= S_IFSOCK; + fattr->cf_dtype = DT_SOCK; } else if (memcmp("IntxLNK", pbuf, 7) == 0) { cifs_dbg(FYI, "Symlink\n"); fattr->cf_mode |= S_IFLNK; diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index 4ce6c3121a7e..c8e536540895 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -4997,6 +4997,9 @@ static int __cifs_sfu_make_node(unsigned int xid, struct inode *inode, pdev.major = cpu_to_le64(MAJOR(dev)); pdev.minor = cpu_to_le64(MINOR(dev)); break; + case S_IFSOCK: + strscpy(pdev.type, "LnxSOCK"); + break; case S_IFIFO: strscpy(pdev.type, "LnxFIFO"); break;