CIFS: Move protocol specific session setup/logoff code to ops struct

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>

6 files changed, 24 insertions, 15 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 8a4150573cf8..a6eb9befdb2d 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -196,6 +196,11 @@ struct smb_version_operations {
         bool (*need_neg)(struct TCP_Server_Info *);
         /* negotiate to the server */
         int (*negotiate)(const unsigned int, struct cifs_ses *);
+        /* setup smb sessionn */
+        int (*sess_setup)(const unsigned int, struct cifs_ses *,
+                          const struct nls_table *);
+        /* close smb session */
+        int (*logoff)(const unsigned int, struct cifs_ses *);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 723a3273c6bb..a17be2618473 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -112,8 +112,8 @@ extern void header_assemble(struct smb_hdr *, char /* command */ ,
 extern int small_smb_init_no_tc(const int smb_cmd, const int wct,
                                 struct cifs_ses *ses,
                                 void **request_buf);
-extern int CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
-                             const struct nls_table *nls_cp);
+extern int CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
+                          const struct nls_table *nls_cp);
 extern struct timespec cifs_NTtimeToUnix(__le64 utc_nanoseconds_since_1601);
 extern u64 cifs_UnixTimeToNT(struct timespec);
 extern struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time,
@@ -180,8 +180,8 @@ void cifs_proc_clean(void);
 
 extern int cifs_negotiate_protocol(const unsigned int xid,
                                    struct cifs_ses *ses);
-extern int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
-                        struct nls_table *nls_info);
+extern int cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
+                              struct nls_table *nls_info);
 extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
 
 extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
@@ -391,7 +391,7 @@ extern int CIFSSMBPosixLock(const int xid, struct cifs_tcon *tcon,
                         const bool waitFlag);
 extern int CIFSSMBTDis(const int xid, struct cifs_tcon *tcon);
 extern int CIFSSMBEcho(struct TCP_Server_Info *server);
-extern int CIFSSMBLogoff(const int xid, struct cifs_ses *ses);
+extern int CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses);
 
 extern struct cifs_ses *sesInfoAlloc(void);
 extern void sesInfoFree(struct cifs_ses *);
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index ae59d6e4e4f5..915b8fc212e9 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -781,7 +781,7 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
 }
 
 int
-CIFSSMBLogoff(const int xid, struct cifs_ses *ses)
+CIFSSMBLogoff(const unsigned int xid, struct cifs_ses *ses)
 {
         LOGOFF_ANDX_REQ *pSMB;
         int rc = 0;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 03389f59390f..444243d9232b 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2253,7 +2253,7 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
 static void
 cifs_put_smb_ses(struct cifs_ses *ses)
 {
-        int xid;
+        unsigned int xid;
         struct TCP_Server_Info *server = ses->server;
 
         cFYI(1, "%s: ses_count=%d", __func__, ses->ses_count);
@@ -2266,9 +2266,9 @@ cifs_put_smb_ses(struct cifs_ses *ses)
         list_del_init(&ses->smb_ses_list);
         spin_unlock(&cifs_tcp_ses_lock);
 
-        if (ses->status == CifsGood) {
+        if (ses->status == CifsGood && server->ops->logoff) {
                 xid = GetXid();
-                CIFSSMBLogoff(xid, ses);
+                server->ops->logoff(xid, ses);
                 _FreeXid(xid);
         }
         sesInfoFree(ses);
@@ -3989,11 +3989,11 @@ cifs_negotiate_protocol(const unsigned int xid, struct cifs_ses *ses)
         return rc;
 }
 
-
-int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
-                        struct nls_table *nls_info)
+int
+cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
+                   struct nls_table *nls_info)
 {
-        int rc = 0;
+        int rc = -ENOSYS;
         struct TCP_Server_Info *server = ses->server;
 
         ses->flags = 0;
@@ -4004,7 +4004,9 @@ int cifs_setup_session(unsigned int xid, struct cifs_ses *ses,
         cFYI(1, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
                  server->sec_mode, server->capabilities, server->timeAdj);
 
-        rc = CIFS_SessSetup(xid, ses, nls_info);
+        if (server->ops->sess_setup)
+                rc = server->ops->sess_setup(xid, ses, nls_info);
+
         if (rc) {
                 cERROR(1, "Send error in SessSetup = %d", rc);
         } else {
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 3ba3f3cd2397..08efc3c8efef 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -556,7 +556,7 @@ setup_ntlmv2_ret:
 }
 
 int
-CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
+CIFS_SessSetup(const unsigned int xid, struct cifs_ses *ses,
                const struct nls_table *nls_cp)
 {
         int rc = 0;
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index ea4fb8aaaafb..6b0a5d616338 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -430,6 +430,8 @@ struct smb_version_operations smb1_operations = {
         .check_trans2 = cifs_check_trans2,
         .need_neg = cifs_need_neg,
         .negotiate = cifs_negotiate,
+        .sess_setup = CIFS_SessSetup,
+        .logoff = CIFSSMBLogoff,
 };
 
 struct smb_version_values smb1_values = {