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linux-sg2042
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Add SMB2.02 dialect support 

This patch enables optional for original SMB2 (SMB2.02) dialect
by specifying vers=2.0 on mount.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Steve French 2012-11-28 23:21:06 -06:00
parent 21cb2d90c7
commit dd446b16ed
3 changed files with 23 additions and 0 deletions
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1
fs/cifs/cifsglob.h
View File

@ -178,6 +178,7 @@ struct smb_rqst {
enum smb_version {
Smb_1 = 1,
Smb_20,
Smb_21,
Smb_30,
};

5
fs/cifs/connect.c
View File

@ -274,6 +274,7 @@ static const match_table_t cifs_cacheflavor_tokens = {
static const match_table_t cifs_smb_version_tokens = {
{ Smb_1, SMB1_VERSION_STRING },
{ Smb_20, SMB20_VERSION_STRING},
{ Smb_21, SMB21_VERSION_STRING },
{ Smb_30, SMB30_VERSION_STRING },
};
@ -1074,6 +1075,10 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol)
vol->vals = &smb1_values;
break;
#ifdef CONFIG_CIFS_SMB2
case Smb_20:
vol->ops = &smb21_operations; /* currently identical with 2.1 */
vol->vals = &smb20_values;
break;
case Smb_21:
vol->ops = &smb21_operations;
vol->vals = &smb21_values;

17
fs/cifs/smb2ops.c
View File

@ -625,6 +625,23 @@ struct smb_version_operations smb21_operations = {
.new_lease_key = smb2_new_lease_key,
};
struct smb_version_values smb20_values = {
.version_string = SMB20_VERSION_STRING,
.protocol_id = SMB20_PROT_ID,
.req_capabilities = 0, /* MBZ */
.large_lock_type = 0,
.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
.header_size = sizeof(struct smb2_hdr),
.max_header_size = MAX_SMB2_HDR_SIZE,
.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
.lock_cmd = SMB2_LOCK,
.cap_unix = 0,
.cap_nt_find = SMB2_NT_FIND,
.cap_large_files = SMB2_LARGE_FILES,
};
struct smb_version_values smb21_values = {
.version_string = SMB21_VERSION_STRING,
.protocol_id = SMB21_PROT_ID,