Commit 286170aa authored by Pavel Shilovsky's avatar Pavel Shilovsky Committed by Steve French

CIFS: Move protocol specific negotiate code to ops struct

Reviewed-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarPavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent a891f0f8
......@@ -192,6 +192,10 @@ struct smb_version_operations {
/* process transaction2 response */
bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *,
char *, int);
/* check if we need to negotiate */
bool (*need_neg)(struct TCP_Server_Info *);
/* negotiate to the server */
int (*negotiate)(const unsigned int, struct cifs_ses *);
};
struct smb_version_values {
......@@ -324,7 +328,7 @@ struct TCP_Server_Info {
struct mutex srv_mutex;
struct task_struct *tsk;
char server_GUID[16];
char sec_mode;
__u16 sec_mode;
bool session_estab; /* mark when very first sess is established */
u16 dialect; /* dialect index that server chose */
enum securityEnum secType;
......@@ -459,7 +463,7 @@ struct cifs_ses {
char *serverOS; /* name of operating system underlying server */
char *serverNOS; /* name of network operating system of server */
char *serverDomain; /* security realm of server */
int Suid; /* remote smb uid */
__u64 Suid; /* remote smb uid */
uid_t linux_uid; /* overriding owner of files on the mount */
uid_t cred_uid; /* owner of credentials */
int capabilities;
......
......@@ -178,11 +178,11 @@ extern void cifs_dfs_release_automount_timer(void);
void cifs_proc_init(void);
void cifs_proc_clean(void);
extern int cifs_negotiate_protocol(unsigned int xid,
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 CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses);
extern int CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses);
extern int CIFSTCon(unsigned int xid, struct cifs_ses *ses,
const char *tree, struct cifs_tcon *tcon,
......
......@@ -396,7 +396,7 @@ static inline void inc_rfc1001_len(void *pSMB, int count)
}
int
CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses)
CIFSSMBNegotiate(const unsigned int xid, struct cifs_ses *ses)
{
NEGOTIATE_REQ *pSMB;
NEGOTIATE_RSP *pSMBr;
......@@ -480,7 +480,7 @@ CIFSSMBNegotiate(unsigned int xid, struct cifs_ses *ses)
rc = -EOPNOTSUPP;
goto neg_err_exit;
}
server->sec_mode = (__u8)le16_to_cpu(rsp->SecurityMode);
server->sec_mode = le16_to_cpu(rsp->SecurityMode);
server->maxReq = min_t(unsigned int,
le16_to_cpu(rsp->MaxMpxCount),
cifs_max_pending);
......
......@@ -407,7 +407,7 @@ cifs_echo_request(struct work_struct *work)
* done, which is indicated by maxBuf != 0. Also, no need to ping if
* we got a response recently
*/
if (server->maxBuf == 0 ||
if (!server->ops->need_neg || server->ops->need_neg(server) ||
time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
goto requeue_echo;
......@@ -2406,7 +2406,8 @@ static bool warned_on_ntlm; /* globals init to false automatically */
static struct cifs_ses *
cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
{
int rc = -ENOMEM, xid;
int rc = -ENOMEM;
unsigned int xid;
struct cifs_ses *ses;
struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr;
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr;
......@@ -3960,24 +3961,22 @@ cifs_umount(struct cifs_sb_info *cifs_sb)
kfree(cifs_sb);
}
int cifs_negotiate_protocol(unsigned int xid, struct cifs_ses *ses)
int
cifs_negotiate_protocol(const unsigned int xid, struct cifs_ses *ses)
{
int rc = 0;
struct TCP_Server_Info *server = ses->server;
if (!server->ops->need_neg || !server->ops->negotiate)
return -ENOSYS;
/* only send once per connect */
if (server->maxBuf != 0)
if (!server->ops->need_neg(server))
return 0;
set_credits(server, 1);
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN) {
/* retry only once on 1st time connection */
set_credits(server, 1);
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
}
rc = server->ops->negotiate(xid, ses);
if (rc == 0) {
spin_lock(&GlobalMid_Lock);
if (server->tcpStatus == CifsNeedNegotiate)
......@@ -3985,7 +3984,6 @@ int cifs_negotiate_protocol(unsigned int xid, struct cifs_ses *ses)
else
rc = -EHOSTDOWN;
spin_unlock(&GlobalMid_Lock);
}
return rc;
......
......@@ -898,7 +898,7 @@ CIFS_SessSetup(unsigned int xid, struct cifs_ses *ses,
if (action & GUEST_LOGIN)
cFYI(1, "Guest login"); /* BB mark SesInfo struct? */
ses->Suid = smb_buf->Uid; /* UID left in wire format (le) */
cFYI(1, "UID = %d ", ses->Suid);
cFYI(1, "UID = %llu ", ses->Suid);
/* response can have either 3 or 4 word count - Samba sends 3 */
/* and lanman response is 3 */
bytes_remaining = get_bcc(smb_buf);
......
......@@ -389,6 +389,27 @@ cifs_check_trans2(struct mid_q_entry *mid, struct TCP_Server_Info *server,
return true;
}
static bool
cifs_need_neg(struct TCP_Server_Info *server)
{
return server->maxBuf == 0;
}
static int
cifs_negotiate(const unsigned int xid, struct cifs_ses *ses)
{
int rc;
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN) {
/* retry only once on 1st time connection */
set_credits(ses->server, 1);
rc = CIFSSMBNegotiate(xid, ses);
if (rc == -EAGAIN)
rc = -EHOSTDOWN;
}
return rc;
}
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
......@@ -407,6 +428,8 @@ struct smb_version_operations smb1_operations = {
.dump_detail = cifs_dump_detail,
.is_oplock_break = is_valid_oplock_break,
.check_trans2 = cifs_check_trans2,
.need_neg = cifs_need_neg,
.negotiate = cifs_negotiate,
};
struct smb_version_values smb1_values = {
......
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