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cifs: break negotiate protocol calls out of cifs_setup_session 

So that we can reasonably set up the secType based on both the
NegotiateProtocol response and the parsed mount options.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2010-04-24 07:57:48 -04:00 committed by Steve French
parent ebe6aa5ac4
commit 198b568278
3 changed files with 51 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/cifs/cifsproto.h
View File

@ -138,7 +138,9 @@ extern void cifs_dfs_release_automount_timer(void);
void cifs_proc_init(void);
void cifs_proc_clean(void);
extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
extern int cifs_negotiate_protocol(unsigned int xid,
struct cifsSesInfo *ses);
extern int cifs_setup_session(unsigned int xid, struct cifsSesInfo *ses,
struct nls_table *nls_info);
extern int CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses);

3
fs/cifs/cifssmb.c
View File

@ -172,7 +172,8 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command)
* reconnect the same SMB session
*/
mutex_lock(&ses->session_mutex);
if (ses->need_reconnect)
rc = cifs_negotiate_protocol(0, ses);
if (rc == 0 && ses->need_reconnect)
rc = cifs_setup_session(0, ses, nls_codepage);
/* do we need to reconnect tcon? */

76
fs/cifs/connect.c
View File

@ -1651,6 +1651,14 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
cifs_put_tcp_session(server);
mutex_lock(&ses->session_mutex);
rc = cifs_negotiate_protocol(xid, ses);
if (rc) {
mutex_unlock(&ses->session_mutex);
/* problem -- put our ses reference */
cifs_put_smb_ses(ses);
FreeXid(xid);
return ERR_PTR(rc);
}
if (ses->need_reconnect) {
cFYI(1, "Session needs reconnect");
rc = cifs_setup_session(xid, ses,
@ -1702,7 +1710,9 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
ses->overrideSecFlg = volume_info->secFlg;
mutex_lock(&ses->session_mutex);
rc = cifs_setup_session(xid, ses, volume_info->local_nls);
rc = cifs_negotiate_protocol(xid, ses);
if (!rc)
rc = cifs_setup_session(xid, ses, volume_info->local_nls);
mutex_unlock(&ses->session_mutex);
if (rc)
goto get_ses_fail;
@ -2874,55 +2884,61 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb)
return rc;
}
int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
struct nls_table *nls_info)
int cifs_negotiate_protocol(unsigned int xid, struct cifsSesInfo *ses)
{
int rc = 0;
struct TCP_Server_Info *server = pSesInfo->server;
struct TCP_Server_Info *server = ses->server;
/* what if server changes its buffer size after dropping the session? */
if (server->maxBuf == 0) /* no need to send on reconnect */ {
rc = CIFSSMBNegotiate(xid, pSesInfo);
if (rc == -EAGAIN) {
/* retry only once on 1st time connection */
rc = CIFSSMBNegotiate(xid, pSesInfo);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
}
if (rc == 0) {
spin_lock(&GlobalMid_Lock);
if (server->tcpStatus != CifsExiting)
server->tcpStatus = CifsGood;
else
rc = -EHOSTDOWN;
spin_unlock(&GlobalMid_Lock);
/* only send once per connect */
if (server->maxBuf != 0)
return 0;
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN) {
/* retry only once on 1st time connection */
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
}
if (rc == 0) {
spin_lock(&GlobalMid_Lock);
if (server->tcpStatus != CifsExiting)
server->tcpStatus = CifsGood;
else
rc = -EHOSTDOWN;
spin_unlock(&GlobalMid_Lock);
}
}
if (rc)
goto ss_err_exit;
return rc;
}
pSesInfo->flags = 0;
pSesInfo->capabilities = server->capabilities;
int cifs_setup_session(unsigned int xid, struct cifsSesInfo *ses,
struct nls_table *nls_info)
{
int rc = 0;
struct TCP_Server_Info *server = ses->server;
ses->flags = 0;
ses->capabilities = server->capabilities;
if (linuxExtEnabled == 0)
pSesInfo->capabilities &= (~CAP_UNIX);
ses->capabilities &= (~CAP_UNIX);
cFYI(1, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
server->secMode, server->capabilities, server->timeAdj);
rc = CIFS_SessSetup(xid, pSesInfo, nls_info);
rc = CIFS_SessSetup(xid, ses, nls_info);
if (rc) {
cERROR(1, "Send error in SessSetup = %d", rc);
} else {
cFYI(1, "CIFS Session Established successfully");
spin_lock(&GlobalMid_Lock);
pSesInfo->status = CifsGood;
pSesInfo->need_reconnect = false;
ses->status = CifsGood;
ses->need_reconnect = false;
spin_unlock(&GlobalMid_Lock);
}
ss_err_exit:
return rc;
}