smb: move client and server files to common directory fs/smb

Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:

   fs/cifs --> fs/smb/client
   fs/ksmbd --> fs/smb/server
   fs/smbfs_common --> fs/smb/common

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

1 files changed, 0 insertions, 238 deletions

diff --git a/fs/ksmbd/asn1.c b/fs/ksmbd/asn1.c
deleted file mode 100644
index cc6384f79675..000000000000
--- a/fs/ksmbd/asn1.c
+++ /dev/null
@@ -1,238 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * The ASB.1/BER parsing code is derived from ip_nat_snmp_basic.c which was in
- * turn derived from the gxsnmp package by Gregory McLean & Jochen Friedrich
- *
- * Copyright (c) 2000 RP Internet (www.rpi.net.au).
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/oid_registry.h>
-
-#include "glob.h"
-
-#include "asn1.h"
-#include "connection.h"
-#include "auth.h"
-#include "ksmbd_spnego_negtokeninit.asn1.h"
-#include "ksmbd_spnego_negtokentarg.asn1.h"
-
-#define NTLMSSP_OID_LEN  10
-
-static char NTLMSSP_OID_STR[NTLMSSP_OID_LEN] = { 0x2b, 0x06, 0x01, 0x04, 0x01,
-	0x82, 0x37, 0x02, 0x02, 0x0a };
-
-int
-ksmbd_decode_negTokenInit(unsigned char *security_blob, int length,
-			  struct ksmbd_conn *conn)
-{
-	return asn1_ber_decoder(&ksmbd_spnego_negtokeninit_decoder, conn,
-				security_blob, length);
-}
-
-int
-ksmbd_decode_negTokenTarg(unsigned char *security_blob, int length,
-			  struct ksmbd_conn *conn)
-{
-	return asn1_ber_decoder(&ksmbd_spnego_negtokentarg_decoder, conn,
-				security_blob, length);
-}
-
-static int compute_asn_hdr_len_bytes(int len)
-{
-	if (len > 0xFFFFFF)
-		return 4;
-	else if (len > 0xFFFF)
-		return 3;
-	else if (len > 0xFF)
-		return 2;
-	else if (len > 0x7F)
-		return 1;
-	else
-		return 0;
-}
-
-static void encode_asn_tag(char *buf, unsigned int *ofs, char tag, char seq,
-			   int length)
-{
-	int i;
-	int index = *ofs;
-	char hdr_len = compute_asn_hdr_len_bytes(length);
-	int len = length + 2 + hdr_len;
-
-	/* insert tag */
-	buf[index++] = tag;
-
-	if (!hdr_len) {
-		buf[index++] = len;
-	} else {
-		buf[index++] = 0x80 | hdr_len;
-		for (i = hdr_len - 1; i >= 0; i--)
-			buf[index++] = (len >> (i * 8)) & 0xFF;
-	}
-
-	/* insert seq */
-	len = len - (index - *ofs);
-	buf[index++] = seq;
-
-	if (!hdr_len) {
-		buf[index++] = len;
-	} else {
-		buf[index++] = 0x80 | hdr_len;
-		for (i = hdr_len - 1; i >= 0; i--)
-			buf[index++] = (len >> (i * 8)) & 0xFF;
-	}
-
-	*ofs += (index - *ofs);
-}
-
-int build_spnego_ntlmssp_neg_blob(unsigned char **pbuffer, u16 *buflen,
-				  char *ntlm_blob, int ntlm_blob_len)
-{
-	char *buf;
-	unsigned int ofs = 0;
-	int neg_result_len = 4 + compute_asn_hdr_len_bytes(1) * 2 + 1;
-	int oid_len = 4 + compute_asn_hdr_len_bytes(NTLMSSP_OID_LEN) * 2 +
-		NTLMSSP_OID_LEN;
-	int ntlmssp_len = 4 + compute_asn_hdr_len_bytes(ntlm_blob_len) * 2 +
-		ntlm_blob_len;
-	int total_len = 4 + compute_asn_hdr_len_bytes(neg_result_len +
-			oid_len + ntlmssp_len) * 2 +
-			neg_result_len + oid_len + ntlmssp_len;
-
-	buf = kmalloc(total_len, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* insert main gss header */
-	encode_asn_tag(buf, &ofs, 0xa1, 0x30, neg_result_len + oid_len +
-			ntlmssp_len);
-
-	/* insert neg result */
-	encode_asn_tag(buf, &ofs, 0xa0, 0x0a, 1);
-	buf[ofs++] = 1;
-
-	/* insert oid */
-	encode_asn_tag(buf, &ofs, 0xa1, 0x06, NTLMSSP_OID_LEN);
-	memcpy(buf + ofs, NTLMSSP_OID_STR, NTLMSSP_OID_LEN);
-	ofs += NTLMSSP_OID_LEN;
-
-	/* insert response token - ntlmssp blob */
-	encode_asn_tag(buf, &ofs, 0xa2, 0x04, ntlm_blob_len);
-	memcpy(buf + ofs, ntlm_blob, ntlm_blob_len);
-	ofs += ntlm_blob_len;
-
-	*pbuffer = buf;
-	*buflen = total_len;
-	return 0;
-}
-
-int build_spnego_ntlmssp_auth_blob(unsigned char **pbuffer, u16 *buflen,
-				   int neg_result)
-{
-	char *buf;
-	unsigned int ofs = 0;
-	int neg_result_len = 4 + compute_asn_hdr_len_bytes(1) * 2 + 1;
-	int total_len = 4 + compute_asn_hdr_len_bytes(neg_result_len) * 2 +
-		neg_result_len;
-
-	buf = kmalloc(total_len, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* insert main gss header */
-	encode_asn_tag(buf, &ofs, 0xa1, 0x30, neg_result_len);
-
-	/* insert neg result */
-	encode_asn_tag(buf, &ofs, 0xa0, 0x0a, 1);
-	if (neg_result)
-		buf[ofs++] = 2;
-	else
-		buf[ofs++] = 0;
-
-	*pbuffer = buf;
-	*buflen = total_len;
-	return 0;
-}
-
-int ksmbd_gssapi_this_mech(void *context, size_t hdrlen, unsigned char tag,
-			   const void *value, size_t vlen)
-{
-	enum OID oid;
-
-	oid = look_up_OID(value, vlen);
-	if (oid != OID_spnego) {
-		char buf[50];
-
-		sprint_oid(value, vlen, buf, sizeof(buf));
-		ksmbd_debug(AUTH, "Unexpected OID: %s\n", buf);
-		return -EBADMSG;
-	}
-
-	return 0;
-}
-
-int ksmbd_neg_token_init_mech_type(void *context, size_t hdrlen,
-				   unsigned char tag, const void *value,
-				   size_t vlen)
-{
-	struct ksmbd_conn *conn = context;
-	enum OID oid;
-	int mech_type;
-
-	oid = look_up_OID(value, vlen);
-	if (oid == OID_ntlmssp) {
-		mech_type = KSMBD_AUTH_NTLMSSP;
-	} else if (oid == OID_mskrb5) {
-		mech_type = KSMBD_AUTH_MSKRB5;
-	} else if (oid == OID_krb5) {
-		mech_type = KSMBD_AUTH_KRB5;
-	} else if (oid == OID_krb5u2u) {
-		mech_type = KSMBD_AUTH_KRB5U2U;
-	} else {
-		char buf[50];
-
-		sprint_oid(value, vlen, buf, sizeof(buf));
-		ksmbd_debug(AUTH, "Unexpected OID: %s\n", buf);
-		return -EBADMSG;
-	}
-
-	conn->auth_mechs |= mech_type;
-	if (conn->preferred_auth_mech == 0)
-		conn->preferred_auth_mech = mech_type;
-
-	return 0;
-}
-
-static int ksmbd_neg_token_alloc(void *context, size_t hdrlen,
-				 unsigned char tag, const void *value,
-				 size_t vlen)
-{
-	struct ksmbd_conn *conn = context;
-
-	conn->mechToken = kmalloc(vlen + 1, GFP_KERNEL);
-	if (!conn->mechToken)
-		return -ENOMEM;
-
-	memcpy(conn->mechToken, value, vlen);
-	conn->mechToken[vlen] = '\0';
-	return 0;
-}
-
-int ksmbd_neg_token_init_mech_token(void *context, size_t hdrlen,
-				    unsigned char tag, const void *value,
-				    size_t vlen)
-{
-	return ksmbd_neg_token_alloc(context, hdrlen, tag, value, vlen);
-}
-
-int ksmbd_neg_token_targ_resp_token(void *context, size_t hdrlen,
-				    unsigned char tag, const void *value,
-				    size_t vlen)
-{
-	return ksmbd_neg_token_alloc(context, hdrlen, tag, value, vlen);
-}