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SubjectRe: [RFC PATCH 0/3] Rename "cifs" module to "smbfs"
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On Mon, 2022-08-01 at 16:09 -0300, Enzo Matsumiya wrote:
> Hi,
>
> As part of the ongoing effort to remove the "cifs" nomenclature from the
> Linux SMB client, I'm proposing the rename of the module to "smbfs".
>
> As it's widely known, CIFS is associated to SMB1.0, which, in turn, is
> associated with the security issues it presented in the past. Using
> "SMBFS" makes clear what's the protocol in use for outsiders, but also
> unties it from any particular protocol version. It also fits in the
> already existing "fs/smbfs_common" and "fs/ksmbd" naming scheme.
>
> This short patch series only changes directory names and includes/ifdefs in
> headers and source code, and updates docs to reflect the rename. Other
> than that, no source code/functionality is modified (WIP though).
>
> Patch 1/3: effectively changes the module name to "smbfs" and create a
> "cifs" module alias to maintain compatibility (a warning
> should be added to indicate the complete removal/isolation of
> CIFS/SMB1.0 code).
> Patch 2/3: rename the source-code directory to align with the new module
> name
> Patch 3/3: update documentation references to "fs/cifs" or "cifs.ko" or
> "cifs module" to use the new name
>
> Enzo Matsumiya (3):
> cifs: change module name to "smbfs.ko"
> smbfs: rename directory "fs/cifs" -> "fs/smbfs"
> smbfs: update doc references
>
> Documentation/admin-guide/index.rst | 2 +-
> .../admin-guide/{cifs => smbfs}/authors.rst | 0
> .../admin-guide/{cifs => smbfs}/changes.rst | 4 +-
> .../admin-guide/{cifs => smbfs}/index.rst | 0
> .../{cifs => smbfs}/introduction.rst | 0
> .../admin-guide/{cifs => smbfs}/todo.rst | 12 +-
> .../admin-guide/{cifs => smbfs}/usage.rst | 168 +++++++++---------
> .../{cifs => smbfs}/winucase_convert.pl | 0
> Documentation/filesystems/index.rst | 2 +-
> .../filesystems/{cifs => smbfs}/cifsroot.rst | 14 +-
> .../filesystems/{cifs => smbfs}/index.rst | 0
> .../filesystems/{cifs => smbfs}/ksmbd.rst | 2 +-
> Documentation/networking/dns_resolver.rst | 2 +-
> .../translations/zh_CN/admin-guide/index.rst | 2 +-
> .../translations/zh_TW/admin-guide/index.rst | 2 +-
> fs/Kconfig | 6 +-
> fs/Makefile | 2 +-
> fs/cifs/Makefile | 34 ----
> fs/{cifs => smbfs}/Kconfig | 108 +++++------
> fs/smbfs/Makefile | 34 ++++
> fs/{cifs => smbfs}/asn1.c | 0
> fs/{cifs => smbfs}/cifs_debug.c | 72 ++++----
> fs/{cifs => smbfs}/cifs_debug.h | 4 +-
> fs/{cifs => smbfs}/cifs_dfs_ref.c | 2 +-
> fs/{cifs => smbfs}/cifs_fs_sb.h | 0
> fs/{cifs => smbfs}/cifs_ioctl.h | 0
> fs/{cifs => smbfs}/cifs_spnego.c | 4 +-
> fs/{cifs => smbfs}/cifs_spnego.h | 0
> .../cifs_spnego_negtokeninit.asn1 | 0
> fs/{cifs => smbfs}/cifs_swn.c | 0
> fs/{cifs => smbfs}/cifs_swn.h | 4 +-
> fs/{cifs => smbfs}/cifs_unicode.c | 0
> fs/{cifs => smbfs}/cifs_unicode.h | 0
> fs/{cifs => smbfs}/cifs_uniupr.h | 0
> fs/{cifs => smbfs}/cifsacl.c | 6 +-
> fs/{cifs => smbfs}/cifsacl.h | 0
> fs/{cifs => smbfs}/cifsencrypt.c | 0
> fs/{cifs => smbfs}/cifsglob.h | 26 +--
> fs/{cifs => smbfs}/cifspdu.h | 6 +-
> fs/{cifs => smbfs}/cifsproto.h | 10 +-
> fs/{cifs => smbfs}/cifsroot.c | 0
> fs/{cifs => smbfs}/cifssmb.c | 14 +-
> fs/{cifs => smbfs}/connect.c | 36 ++--
> fs/{cifs/cifsfs.c => smbfs/core.c} | 49 ++---
> fs/{cifs => smbfs}/dfs_cache.c | 2 +-
> fs/{cifs => smbfs}/dfs_cache.h | 0
> fs/{cifs => smbfs}/dir.c | 2 +-
> fs/{cifs => smbfs}/dns_resolve.c | 0
> fs/{cifs => smbfs}/dns_resolve.h | 0
> fs/{cifs => smbfs}/export.c | 8 +-
> fs/{cifs => smbfs}/file.c | 16 +-
> fs/{cifs => smbfs}/fs_context.c | 20 +--
> fs/{cifs => smbfs}/fs_context.h | 0
> fs/{cifs => smbfs}/fscache.c | 0
> fs/{cifs => smbfs}/fscache.h | 6 +-
> fs/{cifs => smbfs}/inode.c | 10 +-
> fs/{cifs => smbfs}/ioctl.c | 6 +-
> fs/{cifs => smbfs}/link.c | 2 +-
> fs/{cifs => smbfs}/misc.c | 14 +-
> fs/{cifs => smbfs}/netlink.c | 0
> fs/{cifs => smbfs}/netlink.h | 0
> fs/{cifs => smbfs}/netmisc.c | 2 +-
> fs/{cifs => smbfs}/nterr.c | 0
> fs/{cifs => smbfs}/nterr.h | 0
> fs/{cifs => smbfs}/ntlmssp.h | 2 +-
> fs/{cifs => smbfs}/readdir.c | 4 +-
> fs/{cifs => smbfs}/rfc1002pdu.h | 0
> fs/{cifs => smbfs}/sess.c | 10 +-
> fs/{cifs => smbfs}/smb1ops.c | 4 +-
> fs/{cifs => smbfs}/smb2file.c | 2 +-
> fs/{cifs => smbfs}/smb2glob.h | 0
> fs/{cifs => smbfs}/smb2inode.c | 2 +-
> fs/{cifs => smbfs}/smb2maperror.c | 0
> fs/{cifs => smbfs}/smb2misc.c | 0
> fs/{cifs => smbfs}/smb2ops.c | 32 ++--
> fs/{cifs => smbfs}/smb2pdu.c | 22 +--
> fs/{cifs => smbfs}/smb2pdu.h | 0
> fs/{cifs => smbfs}/smb2proto.h | 0
> fs/{cifs => smbfs}/smb2status.h | 0
> fs/{cifs => smbfs}/smb2transport.c | 2 +-
> fs/{cifs => smbfs}/smbdirect.c | 0
> fs/{cifs => smbfs}/smbdirect.h | 2 +-
> fs/{cifs => smbfs}/smbencrypt.c | 0
> fs/{cifs => smbfs}/smberr.h | 0
> fs/{cifs/cifsfs.h => smbfs/smbfs.h} | 12 +-
> fs/{cifs => smbfs}/trace.c | 0
> fs/{cifs => smbfs}/trace.h | 0
> fs/{cifs => smbfs}/transport.c | 4 +-
> fs/{cifs => smbfs}/unc.c | 0
> fs/{cifs => smbfs}/winucase.c | 0
> fs/{cifs => smbfs}/xattr.c | 18 +-
> 91 files changed, 414 insertions(+), 417 deletions(-)
> rename Documentation/admin-guide/{cifs => smbfs}/authors.rst (100%)
> rename Documentation/admin-guide/{cifs => smbfs}/changes.rst (73%)
> rename Documentation/admin-guide/{cifs => smbfs}/index.rst (100%)
> rename Documentation/admin-guide/{cifs => smbfs}/introduction.rst (100%)
> rename Documentation/admin-guide/{cifs => smbfs}/todo.rst (95%)
> rename Documentation/admin-guide/{cifs => smbfs}/usage.rst (87%)
> rename Documentation/admin-guide/{cifs => smbfs}/winucase_convert.pl (100%)
> rename Documentation/filesystems/{cifs => smbfs}/cifsroot.rst (85%)
> rename Documentation/filesystems/{cifs => smbfs}/index.rst (100%)
> rename Documentation/filesystems/{cifs => smbfs}/ksmbd.rst (99%)
> delete mode 100644 fs/cifs/Makefile
> rename fs/{cifs => smbfs}/Kconfig (72%)
> create mode 100644 fs/smbfs/Makefile
> rename fs/{cifs => smbfs}/asn1.c (100%)
> rename fs/{cifs => smbfs}/cifs_debug.c (96%)
> rename fs/{cifs => smbfs}/cifs_debug.h (98%)
> rename fs/{cifs => smbfs}/cifs_dfs_ref.c (99%)
> rename fs/{cifs => smbfs}/cifs_fs_sb.h (100%)
> rename fs/{cifs => smbfs}/cifs_ioctl.h (100%)
> rename fs/{cifs => smbfs}/cifs_spnego.c (98%)
> rename fs/{cifs => smbfs}/cifs_spnego.h (100%)
> rename fs/{cifs => smbfs}/cifs_spnego_negtokeninit.asn1 (100%)
> rename fs/{cifs => smbfs}/cifs_swn.c (100%)
> rename fs/{cifs => smbfs}/cifs_swn.h (95%)
> rename fs/{cifs => smbfs}/cifs_unicode.c (100%)
> rename fs/{cifs => smbfs}/cifs_unicode.h (100%)
> rename fs/{cifs => smbfs}/cifs_uniupr.h (100%)
> rename fs/{cifs => smbfs}/cifsacl.c (99%)
> rename fs/{cifs => smbfs}/cifsacl.h (100%)
> rename fs/{cifs => smbfs}/cifsencrypt.c (100%)
> rename fs/{cifs => smbfs}/cifsglob.h (99%)
> rename fs/{cifs => smbfs}/cifspdu.h (99%)
> rename fs/{cifs => smbfs}/cifsproto.h (99%)
> rename fs/{cifs => smbfs}/cifsroot.c (100%)
> rename fs/{cifs => smbfs}/cifssmb.c (99%)
> rename fs/{cifs => smbfs}/connect.c (99%)
> rename fs/{cifs/cifsfs.c => smbfs/core.c} (98%)
> rename fs/{cifs => smbfs}/dfs_cache.c (99%)
> rename fs/{cifs => smbfs}/dfs_cache.h (100%)
> rename fs/{cifs => smbfs}/dir.c (99%)
> rename fs/{cifs => smbfs}/dns_resolve.c (100%)
> rename fs/{cifs => smbfs}/dns_resolve.h (100%)
> rename fs/{cifs => smbfs}/export.c (91%)
> rename fs/{cifs => smbfs}/file.c (99%)
> rename fs/{cifs => smbfs}/fs_context.c (99%)
> rename fs/{cifs => smbfs}/fs_context.h (100%)
> rename fs/{cifs => smbfs}/fscache.c (100%)
> rename fs/{cifs => smbfs}/fscache.h (98%)
> rename fs/{cifs => smbfs}/inode.c (99%)
> rename fs/{cifs => smbfs}/ioctl.c (99%)
> rename fs/{cifs => smbfs}/link.c (99%)
> rename fs/{cifs => smbfs}/misc.c (99%)
> rename fs/{cifs => smbfs}/netlink.c (100%)
> rename fs/{cifs => smbfs}/netlink.h (100%)
> rename fs/{cifs => smbfs}/netmisc.c (99%)
> rename fs/{cifs => smbfs}/nterr.c (100%)
> rename fs/{cifs => smbfs}/nterr.h (100%)
> rename fs/{cifs => smbfs}/ntlmssp.h (98%)
> rename fs/{cifs => smbfs}/readdir.c (99%)
> rename fs/{cifs => smbfs}/rfc1002pdu.h (100%)
> rename fs/{cifs => smbfs}/sess.c (99%)
> rename fs/{cifs => smbfs}/smb1ops.c (99%)
> rename fs/{cifs => smbfs}/smb2file.c (99%)
> rename fs/{cifs => smbfs}/smb2glob.h (100%)
> rename fs/{cifs => smbfs}/smb2inode.c (99%)
> rename fs/{cifs => smbfs}/smb2maperror.c (100%)
> rename fs/{cifs => smbfs}/smb2misc.c (100%)
> rename fs/{cifs => smbfs}/smb2ops.c (99%)
> rename fs/{cifs => smbfs}/smb2pdu.c (99%)
> rename fs/{cifs => smbfs}/smb2pdu.h (100%)
> rename fs/{cifs => smbfs}/smb2proto.h (100%)
> rename fs/{cifs => smbfs}/smb2status.h (100%)
> rename fs/{cifs => smbfs}/smb2transport.c (99%)
> rename fs/{cifs => smbfs}/smbdirect.c (100%)
> rename fs/{cifs => smbfs}/smbdirect.h (99%)
> rename fs/{cifs => smbfs}/smbencrypt.c (100%)
> rename fs/{cifs => smbfs}/smberr.h (100%)
> rename fs/{cifs/cifsfs.h => smbfs/smbfs.h} (97%)
> rename fs/{cifs => smbfs}/trace.c (100%)
> rename fs/{cifs => smbfs}/trace.h (100%)
> rename fs/{cifs => smbfs}/transport.c (99%)
> rename fs/{cifs => smbfs}/unc.c (100%)
> rename fs/{cifs => smbfs}/winucase.c (100%)
> rename fs/{cifs => smbfs}/xattr.c (98%)
>


Why do this? My inclination is to say NAK here.

This seems like a lot of change for not a lot of benefit. Renaming the
directory like this pretty much guarantees that backporting patches
after this change to kernels that existed before it will be very
difficult.

Also, bear in mind that there used to be an smbfs in the kernel that
predated cifs.ko. That was removed ~2010 though, which is long enough
ago that it shouldn't produce conflicts in currently shipping releases. 
--
Jeff Layton <jlayton@kernel.org>

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