333 	struct cifs_ses *ses;  in cifs_reconnect()  local
359 		ses = list_entry(tmp, struct cifs_ses, smb_ses_list);  in cifs_reconnect()
360 		ses->need_reconnect = true;  in cifs_reconnect()
361 		list_for_each(tmp2, &ses->tcon_list) {  in cifs_reconnect()
365 		if (ses->tcon_ipc)  in cifs_reconnect()
366 			ses->tcon_ipc->need_reconnect = true;  in cifs_reconnect()
2490 static int match_session(struct cifs_ses *ses, struct smb_vol *vol)  in match_session()  argument
2493 	    vol->sectype != ses->sectype)  in match_session()
2496 	switch (ses->sectype) {  in match_session()
2498 		if (!uid_eq(vol->cred_uid, ses->cred_uid))  in match_session()
2503 		if (ses->user_name == NULL) {  in match_session()
2510 		if (strncmp(ses->user_name,  in match_session()
2515 		    ses->password != NULL &&  in match_session()
2516 		    strncmp(ses->password,  in match_session()
2531 cifs_setup_ipc(struct cifs_ses *ses, struct smb_vol *volume_info)  in cifs_setup_ipc()  argument
2544 		if (ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION)  in cifs_setup_ipc()
2557 	snprintf(unc, sizeof(unc), "\\\\%s\\IPC$", ses->server->hostname);  in cifs_setup_ipc()
2563 	tcon->ses = ses;  in cifs_setup_ipc()
2566 	rc = ses->server->ops->tree_connect(xid, ses, unc, tcon, nls_codepage);  in cifs_setup_ipc()
2577 	ses->tcon_ipc = tcon;  in cifs_setup_ipc()
2589 cifs_free_ipc(struct cifs_ses *ses)  in cifs_free_ipc()  argument
2592 	struct cifs_tcon *tcon = ses->tcon_ipc;  in cifs_free_ipc()
2597 	if (ses->server->ops->tree_disconnect) {  in cifs_free_ipc()
2599 		rc = ses->server->ops->tree_disconnect(xid, tcon);  in cifs_free_ipc()
2607 	ses->tcon_ipc = NULL;  in cifs_free_ipc()
2614 	struct cifs_ses *ses;  in cifs_find_smb_ses()  local
2617 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {  in cifs_find_smb_ses()
2618 		if (ses->status == CifsExiting)  in cifs_find_smb_ses()
2620 		if (!match_session(ses, vol))  in cifs_find_smb_ses()
2622 		++ses->ses_count;  in cifs_find_smb_ses()
2624 		return ses;  in cifs_find_smb_ses()
2631 cifs_put_smb_ses(struct cifs_ses *ses)  in cifs_put_smb_ses()  argument
2634 	struct TCP_Server_Info *server = ses->server;  in cifs_put_smb_ses()
2636 	cifs_dbg(FYI, "%s: ses_count=%d\n", __func__, ses->ses_count);  in cifs_put_smb_ses()
2639 	if (ses->status == CifsExiting) {  in cifs_put_smb_ses()
2643 	if (--ses->ses_count > 0) {  in cifs_put_smb_ses()
2647 	if (ses->status == CifsGood)  in cifs_put_smb_ses()
2648 		ses->status = CifsExiting;  in cifs_put_smb_ses()
2651 	cifs_free_ipc(ses);  in cifs_put_smb_ses()
2653 	if (ses->status == CifsExiting && server->ops->logoff) {  in cifs_put_smb_ses()
2655 		rc = server->ops->logoff(xid, ses);  in cifs_put_smb_ses()
2663 	list_del_init(&ses->smb_ses_list);  in cifs_put_smb_ses()
2666 	sesInfoFree(ses);  in cifs_put_smb_ses()
2677 cifs_set_cifscreds(struct smb_vol *vol, struct cifs_ses *ses)  in cifs_set_cifscreds()  argument
2684 	struct TCP_Server_Info *server = ses->server;  in cifs_set_cifscreds()
2713 		if (!ses->domainName) {  in cifs_set_cifscreds()
2720 		sprintf(desc, "cifs:d:%s", ses->domainName);  in cifs_set_cifscreds()
2795 		   struct cifs_ses *ses __attribute__((unused)))  in cifs_set_cifscreds()  argument
2813 	struct cifs_ses *ses;  in cifs_get_smb_ses()  local
2819 	ses = cifs_find_smb_ses(server, volume_info);  in cifs_get_smb_ses()
2820 	if (ses) {  in cifs_get_smb_ses()
2822 			 ses->status);  in cifs_get_smb_ses()
2824 		mutex_lock(&ses->session_mutex);  in cifs_get_smb_ses()
2825 		rc = cifs_negotiate_protocol(xid, ses);  in cifs_get_smb_ses()
2827 			mutex_unlock(&ses->session_mutex);  in cifs_get_smb_ses()
2829 			cifs_put_smb_ses(ses);  in cifs_get_smb_ses()
2833 		if (ses->need_reconnect) {  in cifs_get_smb_ses()
2835 			rc = cifs_setup_session(xid, ses,  in cifs_get_smb_ses()
2838 				mutex_unlock(&ses->session_mutex);  in cifs_get_smb_ses()
2840 				cifs_put_smb_ses(ses);  in cifs_get_smb_ses()
2845 		mutex_unlock(&ses->session_mutex);  in cifs_get_smb_ses()
2850 		return ses;  in cifs_get_smb_ses()
2854 	ses = sesInfoAlloc();  in cifs_get_smb_ses()
2855 	if (ses == NULL)  in cifs_get_smb_ses()
2859 	ses->server = server;  in cifs_get_smb_ses()
2861 		sprintf(ses->serverName, "%pI6", &addr6->sin6_addr);  in cifs_get_smb_ses()
2863 		sprintf(ses->serverName, "%pI4", &addr->sin_addr);  in cifs_get_smb_ses()
2866 		ses->user_name = kstrdup(volume_info->username, GFP_KERNEL);  in cifs_get_smb_ses()
2867 		if (!ses->user_name)  in cifs_get_smb_ses()
2873 		ses->password = kstrdup(volume_info->password, GFP_KERNEL);  in cifs_get_smb_ses()
2874 		if (!ses->password)  in cifs_get_smb_ses()
2878 		ses->domainName = kstrdup(volume_info->domainname, GFP_KERNEL);  in cifs_get_smb_ses()
2879 		if (!ses->domainName)  in cifs_get_smb_ses()
2883 		ses->domainAuto = volume_info->domainauto;  in cifs_get_smb_ses()
2884 	ses->cred_uid = volume_info->cred_uid;  in cifs_get_smb_ses()
2885 	ses->linux_uid = volume_info->linux_uid;  in cifs_get_smb_ses()
2887 	ses->sectype = volume_info->sectype;  in cifs_get_smb_ses()
2888 	ses->sign = volume_info->sign;  in cifs_get_smb_ses()
2890 	mutex_lock(&ses->session_mutex);  in cifs_get_smb_ses()
2891 	rc = cifs_negotiate_protocol(xid, ses);  in cifs_get_smb_ses()
2893 		rc = cifs_setup_session(xid, ses, volume_info->local_nls);  in cifs_get_smb_ses()
2894 	mutex_unlock(&ses->session_mutex);  in cifs_get_smb_ses()
2900 	list_add(&ses->smb_ses_list, &server->smb_ses_list);  in cifs_get_smb_ses()
2905 	cifs_setup_ipc(ses, volume_info);  in cifs_get_smb_ses()
2907 	return ses;  in cifs_get_smb_ses()
2910 	sesInfoFree(ses);  in cifs_get_smb_ses()
2929 cifs_find_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)  in cifs_find_tcon()  argument
2935 	list_for_each(tmp, &ses->tcon_list) {  in cifs_find_tcon()
2951 	struct cifs_ses *ses;  in cifs_put_tcon()  local
2960 	ses = tcon->ses;  in cifs_put_tcon()
2972 	if (ses->server->ops->tree_disconnect)  in cifs_put_tcon()
2973 		ses->server->ops->tree_disconnect(xid, tcon);  in cifs_put_tcon()
2978 	cifs_put_smb_ses(ses);  in cifs_put_tcon()
3002 cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)  in cifs_get_tcon()  argument
3007 	tcon = cifs_find_tcon(ses, volume_info);  in cifs_get_tcon()
3014 		cifs_put_smb_ses(ses);  in cifs_get_tcon()
3018 	if (!ses->server->ops->tree_connect) {  in cifs_get_tcon()
3030 		if (ses->server->vals->protocol_id == 0) {  in cifs_get_tcon()
3039 	tcon->ses = ses;  in cifs_get_tcon()
3049 		if (ses->server->vals->protocol_id == 0) {  in cifs_get_tcon()
3054 		} else if (tcon->ses->server->capabilities &  in cifs_get_tcon()
3065 		if (ses->server->posix_ext_supported) {  in cifs_get_tcon()
3081 	rc = ses->server->ops->tree_connect(xid, ses, volume_info->UNC, tcon,  in cifs_get_tcon()
3095 		if (ses->server->vals->protocol_id == 0) {  in cifs_get_tcon()
3100 		} else if (ses->server->capabilities &  in cifs_get_tcon()
3110 	     && (ses->server->capabilities & SMB2_GLOBAL_CAP_PERSISTENT_HANDLES)  in cifs_get_tcon()
3115 		if (ses->server->vals->protocol_id == 0) {  in cifs_get_tcon()
3136 	list_add(&tcon->tcon_list, &ses->tcon_list);  in cifs_get_tcon()
3228 	struct cifs_ses *ses;  in cifs_match_super()  local
3241 	ses = tcon->ses;  in cifs_match_super()
3242 	tcp_srv = ses->server;  in cifs_match_super()
3247 	    !match_session(ses, volume_info) ||  in cifs_match_super()
3262 get_dfs_path(const unsigned int xid, struct cifs_ses *ses, const char *old_path,  in get_dfs_path()  argument
3268 	if (!ses->server->ops->get_dfs_refer)  in get_dfs_path()
3274 	rc = ses->server->ops->get_dfs_refer(xid, ses, old_path,  in get_dfs_path()
3813 expand_dfs_referral(const unsigned int xid, struct cifs_ses *ses,  in expand_dfs_referral()  argument
3829 	rc = get_dfs_path(xid, ses, ref_path, cifs_sb->local_nls,  in expand_dfs_referral()
3959 	struct cifs_ses *ses;  in cifs_mount()  local
3974 		else if (ses)  in cifs_mount()
3975 			cifs_put_smb_ses(ses);  in cifs_mount()
3984 	ses = NULL;  in cifs_mount()
4003 	ses = cifs_get_smb_ses(server, volume_info);  in cifs_mount()
4004 	if (IS_ERR(ses)) {  in cifs_mount()
4005 		rc = PTR_ERR(ses);  in cifs_mount()
4006 		ses = NULL;  in cifs_mount()
4010 	if ((volume_info->persistent == true) && ((ses->server->capabilities &  in cifs_mount()
4018 	tcon = cifs_get_tcon(ses, volume_info);  in cifs_mount()
4033 	if (cap_unix(tcon->ses)) {  in cifs_mount()
4037 		if ((tcon->ses->server->tcpStatus == CifsNeedReconnect) &&  in cifs_mount()
4063 		int refrc = expand_dfs_referral(xid, ses, volume_info, cifs_sb,  in cifs_mount()
4122 		rc = expand_dfs_referral(xid, ses, volume_info, cifs_sb, true);  in cifs_mount()
4144 	tlink->tl_uid = ses->linux_uid;  in cifs_mount()
4165 		else if (ses)  in cifs_mount()
4166 			cifs_put_smb_ses(ses);  in cifs_mount()
4180 CIFSTCon(const unsigned int xid, struct cifs_ses *ses,  in CIFSTCon()  argument
4193 	if (ses == NULL)  in CIFSTCon()
4205 	smb_buffer->Mid = get_next_mid(ses->server);  in CIFSTCon()
4206 	smb_buffer->Uid = ses->Suid;  in CIFSTCon()
4213 	if (tcon->pipe || (ses->server->sec_mode & SECMODE_USER)) {  in CIFSTCon()
4228 		    (ses->sectype == LANMAN))  in CIFSTCon()
4229 			calc_lanman_hash(tcon->password, ses->server->cryptkey,  in CIFSTCon()
4230 					 ses->server->sec_mode &  in CIFSTCon()
4235 		rc = SMBNTencrypt(tcon->password, ses->server->cryptkey,  in CIFSTCon()
4245 		if (ses->capabilities & CAP_UNICODE) {  in CIFSTCon()
4252 	if (ses->server->sign)  in CIFSTCon()
4255 	if (ses->capabilities & CAP_STATUS32) {  in CIFSTCon()
4258 	if (ses->capabilities & CAP_DFS) {  in CIFSTCon()
4261 	if (ses->capabilities & CAP_UNICODE) {  in CIFSTCon()
4281 	rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length,  in CIFSTCon()
4374 cifs_negotiate_protocol(const unsigned int xid, struct cifs_ses *ses)  in cifs_negotiate_protocol()  argument
4377 	struct TCP_Server_Info *server = ses->server;  in cifs_negotiate_protocol()
4388 	rc = server->ops->negotiate(xid, ses);  in cifs_negotiate_protocol()
4402 cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,  in cifs_setup_session()  argument
4406 	struct TCP_Server_Info *server = ses->server;  in cifs_setup_session()
4408 	ses->capabilities = server->capabilities;  in cifs_setup_session()
4410 		ses->capabilities &= (~server->vals->cap_unix);  in cifs_setup_session()
4415 	if (ses->auth_key.response) {  in cifs_setup_session()
4417 			 ses->auth_key.response);  in cifs_setup_session()
4418 		kfree(ses->auth_key.response);  in cifs_setup_session()
4419 		ses->auth_key.response = NULL;  in cifs_setup_session()
4420 		ses->auth_key.len = 0;  in cifs_setup_session()
4424 		rc = server->ops->sess_setup(xid, ses, nls_info);  in cifs_setup_session()
4433 cifs_set_vol_auth(struct smb_vol *vol, struct cifs_ses *ses)  in cifs_set_vol_auth()  argument
4435 	vol->sectype = ses->sectype;  in cifs_set_vol_auth()
4441 	return cifs_set_cifscreds(vol, ses);  in cifs_set_vol_auth()
4449 	struct cifs_ses *ses;  in cifs_construct_tcon()  local
4466 	vol_info->sectype = master_tcon->ses->sectype;  in cifs_construct_tcon()
4467 	vol_info->sign = master_tcon->ses->sign;  in cifs_construct_tcon()
4469 	rc = cifs_set_vol_auth(vol_info, master_tcon->ses);  in cifs_construct_tcon()
4477 	++master_tcon->ses->server->srv_count;  in cifs_construct_tcon()
4480 	ses = cifs_get_smb_ses(master_tcon->ses->server, vol_info);  in cifs_construct_tcon()
4481 	if (IS_ERR(ses)) {  in cifs_construct_tcon()
4482 		tcon = (struct cifs_tcon *)ses;  in cifs_construct_tcon()
4483 		cifs_put_tcp_session(master_tcon->ses->server, 0);  in cifs_construct_tcon()
4487 	tcon = cifs_get_tcon(ses, vol_info);  in cifs_construct_tcon()
4489 		cifs_put_smb_ses(ses);  in cifs_construct_tcon()
4497 	if (cap_unix(ses))  in cifs_construct_tcon()