Commit 20b6d8b4 authored by Steve French's avatar Steve French
Browse files

Add SMB3.02 dialect support 



The new Windows update supports SMB3.02 dialect, a minor update to SMB3.
This patch adds support for mounting with vers=3.02

Signed-off-by: default avatarSteve French <smfrench@gmail.com>
Reviewed-by: default avatarJeff Layton <jlayton@redhat.com>
parent 9cd2e62c

fs/cifs/cifsglob.h

+4 −0
Original line number Diff line number Diff line
@@ -175,6 +175,7 @@ enum smb_version { 
	Smb_20,

	Smb_21,

	Smb_30,

	Smb_302,

};



struct mid_q_entry;
@@ -1486,4 +1487,7 @@ extern struct smb_version_values smb21_values; 
#define SMB30_VERSION_STRING	"3.0"

extern struct smb_version_operations smb30_operations;

extern struct smb_version_values smb30_values;

#define SMB302_VERSION_STRING	"3.02"

/*extern struct smb_version_operations smb302_operations;*/ /* not needed yet */

extern struct smb_version_values smb302_values;

#endif	/* _CIFS_GLOB_H */

fs/cifs/connect.c

+5 −0
Original line number Diff line number Diff line
@@ -276,6 +276,7 @@ static const match_table_t cifs_smb_version_tokens = { 
	{ Smb_20, SMB20_VERSION_STRING},

	{ Smb_21, SMB21_VERSION_STRING },

	{ Smb_30, SMB30_VERSION_STRING },

	{ Smb_302, SMB302_VERSION_STRING },

};



static int ip_connect(struct TCP_Server_Info *server);
@@ -1124,6 +1125,10 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol) 
		vol->ops = &smb30_operations;

		vol->vals = &smb30_values;

		break;

	case Smb_302:

		vol->ops = &smb30_operations; /* currently identical with 3.0 */

		vol->vals = &smb302_values;

		break;

#endif

	default:

		cifs_dbg(VFS, "Unknown vers= option specified: %s\n", value);

fs/cifs/smb2ops.c

+18 −0
Original line number Diff line number Diff line
@@ -746,3 +746,21 @@ struct smb_version_values smb30_values = { 
	.cap_large_files = SMB2_LARGE_FILES,

	.oplock_read = SMB2_OPLOCK_LEVEL_II,

};



struct smb_version_values smb302_values = {

	.version_string = SMB302_VERSION_STRING,

	.protocol_id = SMB302_PROT_ID,

	.req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,

	.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,

	.oplock_read = SMB2_OPLOCK_LEVEL_II,

};

fs/cifs/smb2pdu.c

+2 −0
Original line number Diff line number Diff line
@@ -386,6 +386,8 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) 
		cifs_dbg(FYI, "negotiated smb2.1 dialect\n");

	else if (rsp->DialectRevision == cpu_to_le16(SMB30_PROT_ID))

		cifs_dbg(FYI, "negotiated smb3.0 dialect\n");

	else if (rsp->DialectRevision == cpu_to_le16(SMB302_PROT_ID))

		cifs_dbg(FYI, "negotiated smb3.02 dialect\n");

	else {

		cifs_dbg(VFS, "Illegal dialect returned by server %d\n",

			 le16_to_cpu(rsp->DialectRevision));

fs/cifs/smb2pdu.h

+1 −0
Original line number Diff line number Diff line
@@ -170,6 +170,7 @@ struct smb2_negotiate_req { 
#define SMB20_PROT_ID 0x0202

#define SMB21_PROT_ID 0x0210

#define SMB30_PROT_ID 0x0300

#define SMB302_PROT_ID 0x0302

#define BAD_PROT_ID   0xFFFF



/* SecurityMode flags */