Lines Matching full:server
59 /* Drop the connection to not overload the server */
62 static int ip_connect(struct TCP_Server_Info *server);
63 static int generic_ip_connect(struct TCP_Server_Info *server);
71 * This should be called with server->srv_mutex held.
73 static int reconn_set_ipaddr_from_hostname(struct TCP_Server_Info *server) in reconn_set_ipaddr_from_hostname() argument
80 if (!server->hostname) in reconn_set_ipaddr_from_hostname()
83 /* if server hostname isn't populated, there's nothing to do here */ in reconn_set_ipaddr_from_hostname()
84 if (server->hostname[0] == '\0') in reconn_set_ipaddr_from_hostname()
87 len = strlen(server->hostname) + 3; in reconn_set_ipaddr_from_hostname()
94 scnprintf(unc, len, "\\\\%s", server->hostname); in reconn_set_ipaddr_from_hostname()
96 spin_lock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
97 ss = server->dstaddr; in reconn_set_ipaddr_from_hostname()
98 spin_unlock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
104 cifs_dbg(FYI, "%s: failed to resolve server part of %s to IP: %d\n", in reconn_set_ipaddr_from_hostname()
105 __func__, server->hostname, rc); in reconn_set_ipaddr_from_hostname()
107 spin_lock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
108 memcpy(&server->dstaddr, &ss, sizeof(server->dstaddr)); in reconn_set_ipaddr_from_hostname()
109 spin_unlock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
123 struct TCP_Server_Info *server = tcon->ses->server; in smb2_query_server_interfaces() local
126 * query server network interfaces, in case they change in smb2_query_server_interfaces()
128 if (!server->ops->query_server_interfaces) in smb2_query_server_interfaces()
132 rc = server->ops->query_server_interfaces(xid, tcon, false); in smb2_query_server_interfaces()
136 cifs_dbg(FYI, "%s: failed to query server interfaces: %d\n", in smb2_query_server_interfaces()
143 #define set_need_reco(server) \ argument
145 spin_lock(&server->srv_lock); \
146 if (server->tcpStatus != CifsExiting) \
147 server->tcpStatus = CifsNeedReconnect; \
148 spin_unlock(&server->srv_lock); \
152 * Update the tcpStatus for the server.
157 * @server: the tcp ses for which reconnect is needed
161 cifs_signal_cifsd_for_reconnect(struct TCP_Server_Info *server, in cifs_signal_cifsd_for_reconnect() argument
171 set_need_reco(server); in cifs_signal_cifsd_for_reconnect()
175 if (SERVER_IS_CHAN(server)) in cifs_signal_cifsd_for_reconnect()
176 server = server->primary_server; in cifs_signal_cifsd_for_reconnect()
178 set_need_reco(server); in cifs_signal_cifsd_for_reconnect()
179 list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { in cifs_signal_cifsd_for_reconnect()
187 nserver = ses->chans[i].server; in cifs_signal_cifsd_for_reconnect()
198 list_for_each_entry_safe(server, nserver, &reco, rlist) { in cifs_signal_cifsd_for_reconnect()
199 list_del_init(&server->rlist); in cifs_signal_cifsd_for_reconnect()
200 set_need_reco(server); in cifs_signal_cifsd_for_reconnect()
201 cifs_put_tcp_session(server, 0); in cifs_signal_cifsd_for_reconnect()
211 * @server: the tcp ses for which reconnect is needed
212 * @server needs to be previously set to CifsNeedReconnect.
216 cifs_mark_tcp_ses_conns_for_reconnect(struct TCP_Server_Info *server, in cifs_mark_tcp_ses_conns_for_reconnect() argument
229 /* If server is a channel, select the primary channel */ in cifs_mark_tcp_ses_conns_for_reconnect()
230 pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; in cifs_mark_tcp_ses_conns_for_reconnect()
233 * if the server has been marked for termination, there is a in cifs_mark_tcp_ses_conns_for_reconnect()
240 if (server->terminate) { in cifs_mark_tcp_ses_conns_for_reconnect()
242 server = pserver; in cifs_mark_tcp_ses_conns_for_reconnect()
255 if (cifs_ses_get_chan_index(ses, server) == in cifs_mark_tcp_ses_conns_for_reconnect()
261 if (!cifs_chan_is_iface_active(ses, server)) { in cifs_mark_tcp_ses_conns_for_reconnect()
263 cifs_chan_update_iface(ses, server); in cifs_mark_tcp_ses_conns_for_reconnect()
267 if (!mark_smb_session && cifs_chan_needs_reconnect(ses, server)) { in cifs_mark_tcp_ses_conns_for_reconnect()
275 cifs_chan_set_need_reconnect(ses, server); in cifs_mark_tcp_ses_conns_for_reconnect()
310 cifs_abort_connection(struct TCP_Server_Info *server) in cifs_abort_connection() argument
315 server->maxBuf = 0; in cifs_abort_connection()
316 server->max_read = 0; in cifs_abort_connection()
320 cifs_server_lock(server); in cifs_abort_connection()
321 if (server->ssocket) { in cifs_abort_connection()
322 cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n", server->ssocket->state, in cifs_abort_connection()
323 server->ssocket->flags); in cifs_abort_connection()
324 kernel_sock_shutdown(server->ssocket, SHUT_WR); in cifs_abort_connection()
325 cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n", server->ssocket->state, in cifs_abort_connection()
326 server->ssocket->flags); in cifs_abort_connection()
327 sock_release(server->ssocket); in cifs_abort_connection()
328 server->ssocket = NULL; in cifs_abort_connection()
330 server->sequence_number = 0; in cifs_abort_connection()
331 server->session_estab = false; in cifs_abort_connection()
332 kfree_sensitive(server->session_key.response); in cifs_abort_connection()
333 server->session_key.response = NULL; in cifs_abort_connection()
334 server->session_key.len = 0; in cifs_abort_connection()
335 server->lstrp = jiffies; in cifs_abort_connection()
340 spin_lock(&server->mid_lock); in cifs_abort_connection()
341 list_for_each_entry_safe(mid, nmid, &server->pending_mid_q, qhead) { in cifs_abort_connection()
348 spin_unlock(&server->mid_lock); in cifs_abort_connection()
349 cifs_server_unlock(server); in cifs_abort_connection()
358 if (cifs_rdma_enabled(server)) { in cifs_abort_connection()
359 cifs_server_lock(server); in cifs_abort_connection()
360 smbd_destroy(server); in cifs_abort_connection()
361 cifs_server_unlock(server); in cifs_abort_connection()
365 static bool cifs_tcp_ses_needs_reconnect(struct TCP_Server_Info *server, int num_targets) in cifs_tcp_ses_needs_reconnect() argument
367 spin_lock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
368 server->nr_targets = num_targets; in cifs_tcp_ses_needs_reconnect()
369 if (server->tcpStatus == CifsExiting) { in cifs_tcp_ses_needs_reconnect()
371 spin_unlock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
372 wake_up(&server->response_q); in cifs_tcp_ses_needs_reconnect()
377 trace_smb3_reconnect(server->CurrentMid, server->conn_id, in cifs_tcp_ses_needs_reconnect()
378 server->hostname); in cifs_tcp_ses_needs_reconnect()
379 server->tcpStatus = CifsNeedReconnect; in cifs_tcp_ses_needs_reconnect()
381 spin_unlock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
398 static int __cifs_reconnect(struct TCP_Server_Info *server, in __cifs_reconnect() argument
403 if (!cifs_tcp_ses_needs_reconnect(server, 1)) in __cifs_reconnect()
411 cifs_signal_cifsd_for_reconnect(server, mark_smb_session); in __cifs_reconnect()
413 cifs_mark_tcp_ses_conns_for_reconnect(server, mark_smb_session); in __cifs_reconnect()
415 cifs_abort_connection(server); in __cifs_reconnect()
419 cifs_server_lock(server); in __cifs_reconnect()
421 if (!cifs_swn_set_server_dstaddr(server) && in __cifs_reconnect()
422 !SERVER_IS_CHAN(server)) { in __cifs_reconnect()
424 rc = reconn_set_ipaddr_from_hostname(server); in __cifs_reconnect()
428 if (cifs_rdma_enabled(server)) in __cifs_reconnect()
429 rc = smbd_reconnect(server); in __cifs_reconnect()
431 rc = generic_ip_connect(server); in __cifs_reconnect()
433 cifs_server_unlock(server); in __cifs_reconnect()
438 set_credits(server, 1); in __cifs_reconnect()
439 spin_lock(&server->srv_lock); in __cifs_reconnect()
440 if (server->tcpStatus != CifsExiting) in __cifs_reconnect()
441 server->tcpStatus = CifsNeedNegotiate; in __cifs_reconnect()
442 spin_unlock(&server->srv_lock); in __cifs_reconnect()
443 cifs_swn_reset_server_dstaddr(server); in __cifs_reconnect()
444 cifs_server_unlock(server); in __cifs_reconnect()
445 mod_delayed_work(cifsiod_wq, &server->reconnect, 0); in __cifs_reconnect()
447 } while (server->tcpStatus == CifsNeedReconnect); in __cifs_reconnect()
449 spin_lock(&server->srv_lock); in __cifs_reconnect()
450 if (server->tcpStatus == CifsNeedNegotiate) in __cifs_reconnect()
451 mod_delayed_work(cifsiod_wq, &server->echo, 0); in __cifs_reconnect()
452 spin_unlock(&server->srv_lock); in __cifs_reconnect()
454 wake_up(&server->response_q); in __cifs_reconnect()
459 static int __reconnect_target_unlocked(struct TCP_Server_Info *server, const char *target) in __reconnect_target_unlocked() argument
464 if (!cifs_swn_set_server_dstaddr(server)) { in __reconnect_target_unlocked()
465 if (server->hostname != target) { in __reconnect_target_unlocked()
468 spin_lock(&server->srv_lock); in __reconnect_target_unlocked()
469 kfree(server->hostname); in __reconnect_target_unlocked()
470 server->hostname = hostname; in __reconnect_target_unlocked()
471 spin_unlock(&server->srv_lock); in __reconnect_target_unlocked()
475 cifs_dbg(FYI, "%s: default to last target server: %s\n", __func__, in __reconnect_target_unlocked()
476 server->hostname); in __reconnect_target_unlocked()
480 rc = reconn_set_ipaddr_from_hostname(server); in __reconnect_target_unlocked()
484 if (cifs_rdma_enabled(server)) in __reconnect_target_unlocked()
485 rc = smbd_reconnect(server); in __reconnect_target_unlocked()
487 rc = generic_ip_connect(server); in __reconnect_target_unlocked()
492 static int reconnect_target_unlocked(struct TCP_Server_Info *server, struct dfs_cache_tgt_list *tl, in reconnect_target_unlocked() argument
500 /* If dfs target list is empty, then reconnect to last server */ in reconnect_target_unlocked()
503 return __reconnect_target_unlocked(server, server->hostname); in reconnect_target_unlocked()
507 rc = __reconnect_target_unlocked(server, dfs_cache_get_tgt_name(tit)); in reconnect_target_unlocked()
516 static int reconnect_dfs_server(struct TCP_Server_Info *server) in reconnect_dfs_server() argument
528 * targets (server->nr_targets). It's also possible that the cached referral was cleared in reconnect_dfs_server()
529 * through /proc/fs/cifs/dfscache or the target list is empty due to server settings after in reconnect_dfs_server()
532 mutex_lock(&server->refpath_lock); in reconnect_dfs_server()
533 if (!dfs_cache_noreq_find(server->leaf_fullpath + 1, NULL, &tl)) in reconnect_dfs_server()
535 mutex_unlock(&server->refpath_lock); in reconnect_dfs_server()
539 if (!cifs_tcp_ses_needs_reconnect(server, num_targets)) in reconnect_dfs_server()
544 * different server or share during failover. It could be improved by adding some logic to in reconnect_dfs_server()
545 * only do that in case it connects to a different server or share, though. in reconnect_dfs_server()
547 cifs_mark_tcp_ses_conns_for_reconnect(server, true); in reconnect_dfs_server()
549 cifs_abort_connection(server); in reconnect_dfs_server()
553 cifs_server_lock(server); in reconnect_dfs_server()
555 rc = reconnect_target_unlocked(server, &tl, &target_hint); in reconnect_dfs_server()
558 cifs_server_unlock(server); in reconnect_dfs_server()
566 * through the reconnected target server. in reconnect_dfs_server()
569 set_credits(server, 1); in reconnect_dfs_server()
570 spin_lock(&server->srv_lock); in reconnect_dfs_server()
571 if (server->tcpStatus != CifsExiting) in reconnect_dfs_server()
572 server->tcpStatus = CifsNeedNegotiate; in reconnect_dfs_server()
573 spin_unlock(&server->srv_lock); in reconnect_dfs_server()
574 cifs_swn_reset_server_dstaddr(server); in reconnect_dfs_server()
575 cifs_server_unlock(server); in reconnect_dfs_server()
576 mod_delayed_work(cifsiod_wq, &server->reconnect, 0); in reconnect_dfs_server()
577 } while (server->tcpStatus == CifsNeedReconnect); in reconnect_dfs_server()
579 mutex_lock(&server->refpath_lock); in reconnect_dfs_server()
580 dfs_cache_noreq_update_tgthint(server->leaf_fullpath + 1, target_hint); in reconnect_dfs_server()
581 mutex_unlock(&server->refpath_lock); in reconnect_dfs_server()
585 spin_lock(&server->srv_lock); in reconnect_dfs_server()
586 if (server->tcpStatus == CifsNeedNegotiate) in reconnect_dfs_server()
587 mod_delayed_work(cifsiod_wq, &server->echo, 0); in reconnect_dfs_server()
588 spin_unlock(&server->srv_lock); in reconnect_dfs_server()
590 wake_up(&server->response_q); in reconnect_dfs_server()
594 int cifs_reconnect(struct TCP_Server_Info *server, bool mark_smb_session) in cifs_reconnect() argument
596 mutex_lock(&server->refpath_lock); in cifs_reconnect()
597 if (!server->leaf_fullpath) { in cifs_reconnect()
598 mutex_unlock(&server->refpath_lock); in cifs_reconnect()
599 return __cifs_reconnect(server, mark_smb_session); in cifs_reconnect()
601 mutex_unlock(&server->refpath_lock); in cifs_reconnect()
603 return reconnect_dfs_server(server); in cifs_reconnect()
606 int cifs_reconnect(struct TCP_Server_Info *server, bool mark_smb_session) in cifs_reconnect() argument
608 return __cifs_reconnect(server, mark_smb_session); in cifs_reconnect()
616 struct TCP_Server_Info *server = container_of(work, in cifs_echo_request() local
624 if (server->tcpStatus == CifsNeedReconnect || in cifs_echo_request()
625 server->tcpStatus == CifsExiting || in cifs_echo_request()
626 server->tcpStatus == CifsNew || in cifs_echo_request()
627 (server->ops->can_echo && !server->ops->can_echo(server)) || in cifs_echo_request()
628 time_before(jiffies, server->lstrp + server->echo_interval - HZ)) in cifs_echo_request()
631 rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS; in cifs_echo_request()
638 queue_delayed_work(cifsiod_wq, &server->echo, server->echo_interval); in cifs_echo_request()
642 allocate_buffers(struct TCP_Server_Info *server) in allocate_buffers() argument
644 if (!server->bigbuf) { in allocate_buffers()
645 server->bigbuf = (char *)cifs_buf_get(); in allocate_buffers()
646 if (!server->bigbuf) { in allocate_buffers()
652 } else if (server->large_buf) { in allocate_buffers()
654 memset(server->bigbuf, 0, HEADER_SIZE(server)); in allocate_buffers()
657 if (!server->smallbuf) { in allocate_buffers()
658 server->smallbuf = (char *)cifs_small_buf_get(); in allocate_buffers()
659 if (!server->smallbuf) { in allocate_buffers()
668 memset(server->smallbuf, 0, HEADER_SIZE(server)); in allocate_buffers()
675 server_unresponsive(struct TCP_Server_Info *server) in server_unresponsive() argument
679 * and the server abruptly shut down (e.g. socket wasn't closed, packet in server_unresponsive()
683 spin_lock(&server->srv_lock); in server_unresponsive()
684 if (server->tcpStatus == CifsInNegotiate && in server_unresponsive()
685 time_after(jiffies, server->neg_start + 20 * HZ)) { in server_unresponsive()
686 spin_unlock(&server->srv_lock); in server_unresponsive()
687 cifs_reconnect(server, false); in server_unresponsive()
701 if ((server->tcpStatus == CifsGood || in server_unresponsive()
702 server->tcpStatus == CifsNeedNegotiate) && in server_unresponsive()
703 (!server->ops->can_echo || server->ops->can_echo(server)) && in server_unresponsive()
704 time_after(jiffies, server->lstrp + 3 * server->echo_interval)) { in server_unresponsive()
705 spin_unlock(&server->srv_lock); in server_unresponsive()
707 (3 * server->echo_interval) / HZ); in server_unresponsive()
708 cifs_reconnect(server, false); in server_unresponsive()
711 spin_unlock(&server->srv_lock); in server_unresponsive()
717 zero_credits(struct TCP_Server_Info *server) in zero_credits() argument
721 spin_lock(&server->req_lock); in zero_credits()
722 val = server->credits + server->echo_credits + server->oplock_credits; in zero_credits()
723 if (server->in_flight == 0 && val == 0) { in zero_credits()
724 spin_unlock(&server->req_lock); in zero_credits()
727 spin_unlock(&server->req_lock); in zero_credits()
732 cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg) in cifs_readv_from_socket() argument
741 if (zero_credits(server)) { in cifs_readv_from_socket()
742 cifs_reconnect(server, false); in cifs_readv_from_socket()
746 if (server_unresponsive(server)) in cifs_readv_from_socket()
748 if (cifs_rdma_enabled(server) && server->smbd_conn) in cifs_readv_from_socket()
749 length = smbd_recv(server->smbd_conn, smb_msg); in cifs_readv_from_socket()
751 length = sock_recvmsg(server->ssocket, smb_msg, 0); in cifs_readv_from_socket()
753 spin_lock(&server->srv_lock); in cifs_readv_from_socket()
754 if (server->tcpStatus == CifsExiting) { in cifs_readv_from_socket()
755 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
759 if (server->tcpStatus == CifsNeedReconnect) { in cifs_readv_from_socket()
760 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
761 cifs_reconnect(server, false); in cifs_readv_from_socket()
764 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
772 * CifsNeedReconnect if server hung. in cifs_readv_from_socket()
781 cifs_reconnect(server, false); in cifs_readv_from_socket()
789 cifs_read_from_socket(struct TCP_Server_Info *server, char *buf, in cifs_read_from_socket() argument
797 return cifs_readv_from_socket(server, &smb_msg); in cifs_read_from_socket()
801 cifs_discard_from_socket(struct TCP_Server_Info *server, size_t to_read) in cifs_discard_from_socket() argument
812 return cifs_readv_from_socket(server, &smb_msg); in cifs_discard_from_socket()
816 cifs_read_page_from_socket(struct TCP_Server_Info *server, struct page *page, in cifs_read_page_from_socket() argument
824 return cifs_readv_from_socket(server, &smb_msg); in cifs_read_page_from_socket()
828 cifs_read_iter_from_socket(struct TCP_Server_Info *server, struct iov_iter *iter, in cifs_read_iter_from_socket() argument
835 ret = cifs_readv_from_socket(server, &smb_msg); in cifs_read_iter_from_socket()
842 is_smb_response(struct TCP_Server_Info *server, unsigned char type) in is_smb_response() argument
865 /* give server a second to clean up */ in is_smb_response()
873 cifs_set_port((struct sockaddr *)&server->dstaddr, CIFS_PORT); in is_smb_response()
874 cifs_reconnect(server, true); in is_smb_response()
878 cifs_reconnect(server, true); in is_smb_response()
890 spin_lock(&mid->server->mid_lock); in dequeue_mid()
900 spin_unlock(&mid->server->mid_lock); in dequeue_mid()
905 spin_unlock(&mid->server->mid_lock); in dequeue_mid()
910 smb2_get_credits_from_hdr(char *buffer, struct TCP_Server_Info *server) in smb2_get_credits_from_hdr() argument
917 if (is_smb1(server)) in smb2_get_credits_from_hdr()
924 handle_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server, in handle_mid() argument
927 if (server->ops->check_trans2 && in handle_mid()
928 server->ops->check_trans2(mid, server, buf, malformed)) in handle_mid()
930 mid->credits_received = smb2_get_credits_from_hdr(buf, server); in handle_mid()
932 mid->large_buf = server->large_buf; in handle_mid()
936 if (server->large_buf) in handle_mid()
937 server->bigbuf = NULL; in handle_mid()
939 server->smallbuf = NULL; in handle_mid()
945 cifs_enable_signing(struct TCP_Server_Info *server, bool mnt_sign_required) in cifs_enable_signing() argument
947 bool srv_sign_required = server->sec_mode & server->vals->signing_required; in cifs_enable_signing()
948 bool srv_sign_enabled = server->sec_mode & server->vals->signing_enabled; in cifs_enable_signing()
966 /* If server requires signing, does client allow it? */ in cifs_enable_signing()
969 cifs_dbg(VFS, "Server requires signing, but it's disabled in SecurityFlags!\n"); in cifs_enable_signing()
972 server->sign = true; in cifs_enable_signing()
975 /* If client requires signing, does server allow it? */ in cifs_enable_signing()
978 cifs_dbg(VFS, "Server does not support signing!\n"); in cifs_enable_signing()
981 server->sign = true; in cifs_enable_signing()
984 if (cifs_rdma_enabled(server) && server->sign) in cifs_enable_signing()
991 clean_demultiplex_info(struct TCP_Server_Info *server) in clean_demultiplex_info() argument
996 spin_lock(&server->srv_lock); in clean_demultiplex_info()
997 list_del_init(&server->tcp_ses_list); in clean_demultiplex_info()
998 spin_unlock(&server->srv_lock); in clean_demultiplex_info()
1000 cancel_delayed_work_sync(&server->echo); in clean_demultiplex_info()
1002 spin_lock(&server->srv_lock); in clean_demultiplex_info()
1003 server->tcpStatus = CifsExiting; in clean_demultiplex_info()
1004 spin_unlock(&server->srv_lock); in clean_demultiplex_info()
1005 wake_up_all(&server->response_q); in clean_demultiplex_info()
1008 spin_lock(&server->req_lock); in clean_demultiplex_info()
1009 if (server->credits <= 0) in clean_demultiplex_info()
1010 server->credits = 1; in clean_demultiplex_info()
1011 spin_unlock(&server->req_lock); in clean_demultiplex_info()
1016 * same server - they now will see the session is in exit state and get in clean_demultiplex_info()
1019 wake_up_all(&server->request_q); in clean_demultiplex_info()
1022 if (cifs_rdma_enabled(server)) in clean_demultiplex_info()
1023 smbd_destroy(server); in clean_demultiplex_info()
1024 if (server->ssocket) { in clean_demultiplex_info()
1025 sock_release(server->ssocket); in clean_demultiplex_info()
1026 server->ssocket = NULL; in clean_demultiplex_info()
1029 if (!list_empty(&server->pending_mid_q)) { in clean_demultiplex_info()
1035 spin_lock(&server->mid_lock); in clean_demultiplex_info()
1036 list_for_each_safe(tmp, tmp2, &server->pending_mid_q) { in clean_demultiplex_info()
1044 spin_unlock(&server->mid_lock); in clean_demultiplex_info()
1058 if (!list_empty(&server->pending_mid_q)) { in clean_demultiplex_info()
1075 put_net(cifs_net_ns(server)); in clean_demultiplex_info()
1076 kfree(server->leaf_fullpath); in clean_demultiplex_info()
1077 kfree(server->hostname); in clean_demultiplex_info()
1078 kfree(server); in clean_demultiplex_info()
1086 standard_receive3(struct TCP_Server_Info *server, struct mid_q_entry *mid) in standard_receive3() argument
1089 char *buf = server->smallbuf; in standard_receive3()
1090 unsigned int pdu_length = server->pdu_size; in standard_receive3()
1093 if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server) - in standard_receive3()
1094 HEADER_PREAMBLE_SIZE(server)) { in standard_receive3()
1096 cifs_reconnect(server, true); in standard_receive3()
1102 server->large_buf = true; in standard_receive3()
1103 memcpy(server->bigbuf, buf, server->total_read); in standard_receive3()
1104 buf = server->bigbuf; in standard_receive3()
1108 length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, in standard_receive3()
1109 pdu_length - MID_HEADER_SIZE(server)); in standard_receive3()
1113 server->total_read += length; in standard_receive3()
1115 dump_smb(buf, server->total_read); in standard_receive3()
1117 return cifs_handle_standard(server, mid); in standard_receive3()
1121 cifs_handle_standard(struct TCP_Server_Info *server, struct mid_q_entry *mid) in cifs_handle_standard() argument
1123 char *buf = server->large_buf ? server->bigbuf : server->smallbuf; in cifs_handle_standard()
1134 rc = server->ops->check_message(buf, server->total_read, server); in cifs_handle_standard()
1137 min_t(unsigned int, server->total_read, 48)); in cifs_handle_standard()
1139 if (server->ops->is_session_expired && in cifs_handle_standard()
1140 server->ops->is_session_expired(buf)) { in cifs_handle_standard()
1141 cifs_reconnect(server, true); in cifs_handle_standard()
1145 if (server->ops->is_status_pending && in cifs_handle_standard()
1146 server->ops->is_status_pending(buf, server)) in cifs_handle_standard()
1152 handle_mid(mid, server, buf, rc); in cifs_handle_standard()
1157 smb2_add_credits_from_hdr(char *buffer, struct TCP_Server_Info *server) in smb2_add_credits_from_hdr() argument
1165 if (is_smb1(server)) in smb2_add_credits_from_hdr()
1169 spin_lock(&server->req_lock); in smb2_add_credits_from_hdr()
1170 server->credits += le16_to_cpu(shdr->CreditRequest); in smb2_add_credits_from_hdr()
1171 scredits = server->credits; in smb2_add_credits_from_hdr()
1172 in_flight = server->in_flight; in smb2_add_credits_from_hdr()
1173 spin_unlock(&server->req_lock); in smb2_add_credits_from_hdr()
1174 wake_up(&server->request_q); in smb2_add_credits_from_hdr()
1176 trace_smb3_hdr_credits(server->CurrentMid, in smb2_add_credits_from_hdr()
1177 server->conn_id, server->hostname, scredits, in smb2_add_credits_from_hdr()
1190 struct TCP_Server_Info *server = p; in cifs_demultiplex_thread() local
1209 while (server->tcpStatus != CifsExiting) { in cifs_demultiplex_thread()
1213 if (!allocate_buffers(server)) in cifs_demultiplex_thread()
1216 server->large_buf = false; in cifs_demultiplex_thread()
1217 buf = server->smallbuf; in cifs_demultiplex_thread()
1220 length = cifs_read_from_socket(server, buf, pdu_length); in cifs_demultiplex_thread()
1224 if (is_smb1(server)) in cifs_demultiplex_thread()
1225 server->total_read = length; in cifs_demultiplex_thread()
1227 server->total_read = 0; in cifs_demultiplex_thread()
1236 if (!is_smb_response(server, buf[0])) in cifs_demultiplex_thread()
1241 server->pdu_size = pdu_length; in cifs_demultiplex_thread()
1244 if (server->pdu_size < MID_HEADER_SIZE(server)) { in cifs_demultiplex_thread()
1246 server->pdu_size); in cifs_demultiplex_thread()
1247 cifs_reconnect(server, true); in cifs_demultiplex_thread()
1252 length = cifs_read_from_socket(server, in cifs_demultiplex_thread()
1253 buf + HEADER_PREAMBLE_SIZE(server), in cifs_demultiplex_thread()
1254 MID_HEADER_SIZE(server)); in cifs_demultiplex_thread()
1257 server->total_read += length; in cifs_demultiplex_thread()
1259 if (server->ops->next_header) { in cifs_demultiplex_thread()
1260 if (server->ops->next_header(server, buf, &next_offset)) { in cifs_demultiplex_thread()
1263 cifs_reconnect(server, true); in cifs_demultiplex_thread()
1267 server->pdu_size = next_offset; in cifs_demultiplex_thread()
1274 if (server->ops->is_transform_hdr && in cifs_demultiplex_thread()
1275 server->ops->receive_transform && in cifs_demultiplex_thread()
1276 server->ops->is_transform_hdr(buf)) { in cifs_demultiplex_thread()
1277 length = server->ops->receive_transform(server, in cifs_demultiplex_thread()
1282 mids[0] = server->ops->find_mid(server, buf); in cifs_demultiplex_thread()
1287 length = standard_receive3(server, mids[0]); in cifs_demultiplex_thread()
1289 length = mids[0]->receive(server, mids[0]); in cifs_demultiplex_thread()
1299 if (server->ops->is_status_io_timeout && in cifs_demultiplex_thread()
1300 server->ops->is_status_io_timeout(buf)) { in cifs_demultiplex_thread()
1312 server->lstrp = jiffies; in cifs_demultiplex_thread()
1316 mids[i]->resp_buf_size = server->pdu_size; in cifs_demultiplex_thread()
1319 if (server->ops->is_network_name_deleted && in cifs_demultiplex_thread()
1320 server->ops->is_network_name_deleted(bufs[i], in cifs_demultiplex_thread()
1321 server)) { in cifs_demultiplex_thread()
1331 } else if (server->ops->is_oplock_break && in cifs_demultiplex_thread()
1332 server->ops->is_oplock_break(bufs[i], in cifs_demultiplex_thread()
1333 server)) { in cifs_demultiplex_thread()
1334 smb2_add_credits_from_hdr(bufs[i], server); in cifs_demultiplex_thread()
1340 HEADER_SIZE(server)); in cifs_demultiplex_thread()
1341 smb2_add_credits_from_hdr(bufs[i], server); in cifs_demultiplex_thread()
1343 if (server->ops->dump_detail) in cifs_demultiplex_thread()
1344 server->ops->dump_detail(bufs[i], in cifs_demultiplex_thread()
1345 server); in cifs_demultiplex_thread()
1346 cifs_dump_mids(server); in cifs_demultiplex_thread()
1351 if (pdu_length > server->pdu_size) { in cifs_demultiplex_thread()
1352 if (!allocate_buffers(server)) in cifs_demultiplex_thread()
1354 pdu_length -= server->pdu_size; in cifs_demultiplex_thread()
1355 server->total_read = 0; in cifs_demultiplex_thread()
1356 server->large_buf = false; in cifs_demultiplex_thread()
1357 buf = server->smallbuf; in cifs_demultiplex_thread()
1363 cifs_reconnect(server, true); in cifs_demultiplex_thread()
1368 cifs_buf_release(server->bigbuf); in cifs_demultiplex_thread()
1369 if (server->smallbuf) /* no sense logging a debug message if NULL */ in cifs_demultiplex_thread()
1370 cifs_small_buf_release(server->smallbuf); in cifs_demultiplex_thread()
1372 task_to_wake = xchg(&server->tsk, NULL); in cifs_demultiplex_thread()
1373 clean_demultiplex_info(server); in cifs_demultiplex_thread()
1375 /* if server->tsk was NULL then wait for a signal before exiting */ in cifs_demultiplex_thread()
1471 * families of server and addr are equal.
1474 match_port(struct TCP_Server_Info *server, struct sockaddr *addr) in match_port() argument
1479 if (server->rdma) in match_port()
1484 sport = &((struct sockaddr_in *) &server->dstaddr)->sin_port; in match_port()
1488 sport = &((struct sockaddr_in6 *) &server->dstaddr)->sin6_port; in match_port()
1507 static bool match_server_address(struct TCP_Server_Info *server, struct sockaddr *addr) in match_server_address() argument
1509 if (!cifs_match_ipaddr(addr, (struct sockaddr *)&server->dstaddr)) in match_server_address()
1516 match_security(struct TCP_Server_Info *server, struct smb3_fs_context *ctx) in match_security() argument
1523 if (server->ops->select_sectype(server, ctx->sectype) in match_security()
1530 * the server->sign had better be too. in match_security()
1532 if (ctx->sign && !server->sign) in match_security()
1539 static int match_server(struct TCP_Server_Info *server, in match_server() argument
1545 lockdep_assert_held(&server->srv_lock); in match_server()
1550 /* this server does not share socket */ in match_server()
1551 if (server->nosharesock) in match_server()
1554 if (!match_super && (ctx->dfs_conn || server->dfs_conn)) in match_server()
1559 if (server->vals->protocol_id < SMB30_PROT_ID) in match_server()
1563 if (server->vals->protocol_id < SMB21_PROT_ID) in match_server()
1565 } else if ((server->vals != ctx->vals) || (server->ops != ctx->ops)) in match_server()
1568 if (!net_eq(cifs_net_ns(server), current->nsproxy->net_ns)) in match_server()
1572 (struct sockaddr *)&server->srcaddr)) in match_server()
1576 * really match either @server->leaf_fullpath or @server->dstaddr in match_server()
1577 * directly since this @server might belong to a completely different in match_server()
1578 * server -- in case of domain-based DFS referrals or DFS links -- as in match_server()
1581 * Otherwise, match the DFS referral in @server->leaf_fullpath or the in match_server()
1582 * destination address in @server->dstaddr. in match_server()
1589 if (server->leaf_fullpath) { in match_server()
1591 strcasecmp(server->leaf_fullpath, in match_server()
1597 } else if (server->leaf_fullpath) { in match_server()
1606 if (!server->leaf_fullpath && in match_server()
1607 (strcasecmp(server->hostname, ctx->server_hostname) || in match_server()
1608 !match_server_address(server, addr) || in match_server()
1609 !match_port(server, addr))) in match_server()
1612 if (!match_security(server, ctx)) in match_server()
1615 if (server->echo_interval != ctx->echo_interval * HZ) in match_server()
1618 if (server->rdma != ctx->rdma) in match_server()
1621 if (server->ignore_signature != ctx->ignore_signature) in match_server()
1624 if (server->min_offload != ctx->min_offload) in match_server()
1627 if (server->retrans != ctx->retrans) in match_server()
1636 struct TCP_Server_Info *server; in cifs_find_tcp_session() local
1639 list_for_each_entry(server, &cifs_tcp_ses_list, tcp_ses_list) { in cifs_find_tcp_session()
1640 spin_lock(&server->srv_lock); in cifs_find_tcp_session()
1645 if (SERVER_IS_CHAN(server) || in cifs_find_tcp_session()
1646 !match_server(server, ctx, false)) { in cifs_find_tcp_session()
1647 spin_unlock(&server->srv_lock); in cifs_find_tcp_session()
1650 spin_unlock(&server->srv_lock); in cifs_find_tcp_session()
1652 ++server->srv_count; in cifs_find_tcp_session()
1654 cifs_dbg(FYI, "Existing tcp session with server found\n"); in cifs_find_tcp_session()
1655 return server; in cifs_find_tcp_session()
1662 cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect) in cifs_put_tcp_session() argument
1667 if (--server->srv_count > 0) { in cifs_put_tcp_session()
1673 WARN_ON(server->srv_count < 0); in cifs_put_tcp_session()
1675 list_del_init(&server->tcp_ses_list); in cifs_put_tcp_session()
1678 cancel_delayed_work_sync(&server->echo); in cifs_put_tcp_session()
1684 * that reconnect work does nothing with server pointer after in cifs_put_tcp_session()
1687 cancel_delayed_work(&server->reconnect); in cifs_put_tcp_session()
1689 cancel_delayed_work_sync(&server->reconnect); in cifs_put_tcp_session()
1691 /* For secondary channels, we pick up ref-count on the primary server */ in cifs_put_tcp_session()
1692 if (SERVER_IS_CHAN(server)) in cifs_put_tcp_session()
1693 cifs_put_tcp_session(server->primary_server, from_reconnect); in cifs_put_tcp_session()
1695 spin_lock(&server->srv_lock); in cifs_put_tcp_session()
1696 server->tcpStatus = CifsExiting; in cifs_put_tcp_session()
1697 spin_unlock(&server->srv_lock); in cifs_put_tcp_session()
1699 cifs_crypto_secmech_release(server); in cifs_put_tcp_session()
1701 kfree_sensitive(server->session_key.response); in cifs_put_tcp_session()
1702 server->session_key.response = NULL; in cifs_put_tcp_session()
1703 server->session_key.len = 0; in cifs_put_tcp_session()
1705 task = xchg(&server->tsk, NULL); in cifs_put_tcp_session()
1901 struct TCP_Server_Info *server = ses->server; in match_session() local
1914 ctx_sec = server->ops->select_sectype(server, ctx->sectype); in match_session()
1915 ses_sec = server->ops->select_sectype(server, ses->sectype); in match_session()
1995 struct TCP_Server_Info *server = ses->server; in cifs_setup_ipc() local
2002 if (server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) in cifs_setup_ipc()
2006 "IPC: server doesn't support encryption\n"); in cifs_setup_ipc()
2016 spin_lock(&server->srv_lock); in cifs_setup_ipc()
2017 scnprintf(unc, sizeof(unc), "\\\\%s\\IPC$", server->hostname); in cifs_setup_ipc()
2018 spin_unlock(&server->srv_lock); in cifs_setup_ipc()
2024 rc = server->ops->tree_connect(xid, ses, unc, tcon, ctx->local_nls); in cifs_setup_ipc()
2044 cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx) in cifs_find_smb_ses() argument
2049 list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { in cifs_find_smb_ses()
2073 struct TCP_Server_Info *server = ses->server; in __cifs_put_smb_ses() local
2094 cifs_chan_clear_need_reconnect(ses, server); in __cifs_put_smb_ses()
2097 do_logoff = ses->ses_status == SES_GOOD && server->ops->logoff; in __cifs_put_smb_ses()
2105 * On session close, the IPC is closed and the server must release all in __cifs_put_smb_ses()
2108 * Besides, it will make the server to not close durable and resilient in __cifs_put_smb_ses()
2115 rc = server->ops->logoff(xid, ses); in __cifs_put_smb_ses()
2132 cifs_put_tcp_session(ses->chans[i].server, 0); in __cifs_put_smb_ses()
2133 ses->chans[i].server = NULL; in __cifs_put_smb_ses()
2139 ses->chans[0].server = NULL; in __cifs_put_smb_ses()
2143 cifs_put_tcp_session(server, 0); in __cifs_put_smb_ses()
2161 struct TCP_Server_Info *server = ses->server; in cifs_set_cifscreds() local
2171 switch (server->dstaddr.ss_family) { in cifs_set_cifscreds()
2173 sa = (struct sockaddr_in *)&server->dstaddr; in cifs_set_cifscreds()
2177 sa6 = (struct sockaddr_in6 *)&server->dstaddr; in cifs_set_cifscreds()
2182 server->dstaddr.ss_family); in cifs_set_cifscreds()
2302 * cifs_get_smb_ses - get a session matching @ctx data from @server
2303 * @server: server to setup the session to
2307 * already got a server reference (server refcount +1). See
2311 cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb3_fs_context *ctx) in cifs_get_smb_ses() argument
2317 struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr; in cifs_get_smb_ses()
2318 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr; in cifs_get_smb_ses()
2322 ses = cifs_find_smb_ses(server, ctx); in cifs_get_smb_ses()
2328 if (cifs_chan_needs_reconnect(ses, server)) { in cifs_get_smb_ses()
2335 rc = cifs_negotiate_protocol(xid, ses, server); in cifs_get_smb_ses()
2344 rc = cifs_setup_session(xid, ses, server, in cifs_get_smb_ses()
2366 /* existing SMB ses has a server reference already */ in cifs_get_smb_ses()
2367 cifs_put_tcp_session(server, 0); in cifs_get_smb_ses()
2379 /* new SMB session uses our server ref */ in cifs_get_smb_ses()
2380 ses->server = server; in cifs_get_smb_ses()
2381 if (server->dstaddr.ss_family == AF_INET6) in cifs_get_smb_ses()
2421 /* add server as first channel */ in cifs_get_smb_ses()
2423 ses->chans[0].server = server; in cifs_get_smb_ses()
2431 rc = cifs_negotiate_protocol(xid, ses, server); in cifs_get_smb_ses()
2433 rc = cifs_setup_session(xid, ses, server, ctx->local_nls); in cifs_get_smb_ses()
2460 list_add(&ses->smb_ses_list, &server->smb_ses_list); in cifs_get_smb_ses()
2478 struct TCP_Server_Info *server = tcon->ses->server; in match_tcon() local
2488 } else if (!server->leaf_fullpath && in match_tcon()
2581 if (ses->server->ops->tree_disconnect) in cifs_put_tcon()
2582 ses->server->ops->tree_disconnect(xid, tcon); in cifs_put_tcon()
2633 if (!ses->server->ops->tree_connect) { in cifs_get_tcon()
2638 if (ses->server->dialect >= SMB20_PROT_ID && in cifs_get_tcon()
2639 (ses->server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING)) in cifs_get_tcon()
2651 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2661 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2680 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2685 } else if (tcon->ses->server->capabilities & in cifs_get_tcon()
2696 if (ses->server->posix_ext_supported) { in cifs_get_tcon()
2699 } else if ((ses->server->vals->protocol_id == SMB311_PROT_ID) || in cifs_get_tcon()
2700 (strcmp(ses->server->vals->version_string, in cifs_get_tcon()
2702 (strcmp(ses->server->vals->version_string, in cifs_get_tcon()
2704 cifs_dbg(VFS, "Server does not support mounting with posix SMB3.11 extensions\n"); in cifs_get_tcon()
2707 } else if (ses->server->vals->protocol_id == SMB10_PROT_ID) in cifs_get_tcon()
2711 cifs_dbg(VFS, "SMB1 Unix Extensions not supported by server\n"); in cifs_get_tcon()
2723 rc = ses->server->ops->tree_connect(xid, ses, ctx->UNC, tcon, in cifs_get_tcon()
2733 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2738 } else if (ses->server->capabilities & in cifs_get_tcon()
2748 && (ses->server->capabilities & SMB2_GLOBAL_CAP_PERSISTENT_HANDLES) in cifs_get_tcon()
2753 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2764 if (ses->server->vals->protocol_id >= SMB30_PROT_ID) { in cifs_get_tcon()
2799 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2810 * resources mounted more than once to the same server share the last in cifs_get_tcon()
2821 if (ses->server->dialect >= SMB30_PROT_ID && in cifs_get_tcon()
2822 (ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) { in cifs_get_tcon()
2959 tcp_srv = ses->server; in cifs_match_super()
3037 bind_socket(struct TCP_Server_Info *server) in bind_socket() argument
3041 if (server->srcaddr.ss_family != AF_UNSPEC) { in bind_socket()
3043 struct socket *socket = server->ssocket; in bind_socket()
3046 (struct sockaddr *) &server->srcaddr, in bind_socket()
3047 sizeof(server->srcaddr)); in bind_socket()
3052 saddr4 = (struct sockaddr_in *)&server->srcaddr; in bind_socket()
3053 saddr6 = (struct sockaddr_in6 *)&server->srcaddr; in bind_socket()
3066 ip_rfc1001_connect(struct TCP_Server_Info *server) in ip_rfc1001_connect() argument
3082 if (server->server_RFC1001_name[0] != 0) in ip_rfc1001_connect()
3084 server->server_RFC1001_name, in ip_rfc1001_connect()
3094 if (server->workstation_RFC1001_name[0] != 0) in ip_rfc1001_connect()
3096 server->workstation_RFC1001_name, in ip_rfc1001_connect()
3115 rc = smb_send_kvec(server, &msg, &sent); in ip_rfc1001_connect()
3120 * RFC1001 layer in at least one server requires very short break before in ip_rfc1001_connect()
3131 generic_ip_connect(struct TCP_Server_Info *server) in generic_ip_connect() argument
3139 saddr = (struct sockaddr *) &server->dstaddr; in generic_ip_connect()
3141 if (server->dstaddr.ss_family == AF_INET6) { in generic_ip_connect()
3142 struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&server->dstaddr; in generic_ip_connect()
3150 struct sockaddr_in *ipv4 = (struct sockaddr_in *)&server->dstaddr; in generic_ip_connect()
3159 if (server->ssocket) { in generic_ip_connect()
3160 socket = server->ssocket; in generic_ip_connect()
3162 struct net *net = cifs_net_ns(server); in generic_ip_connect()
3166 IPPROTO_TCP, &server->ssocket, 1); in generic_ip_connect()
3172 sk = server->ssocket->sk; in generic_ip_connect()
3180 socket = server->ssocket; in generic_ip_connect()
3189 rc = bind_socket(server); in generic_ip_connect()
3202 if (server->noautotune) { in generic_ip_connect()
3209 if (server->tcp_nodelay) in generic_ip_connect()
3217 server->noblockcnt ? O_NONBLOCK : 0); in generic_ip_connect()
3223 if (server->noblockcnt && rc == -EINPROGRESS) in generic_ip_connect()
3226 cifs_dbg(FYI, "Error %d connecting to server\n", rc); in generic_ip_connect()
3227 trace_smb3_connect_err(server->hostname, server->conn_id, &server->dstaddr, rc); in generic_ip_connect()
3229 server->ssocket = NULL; in generic_ip_connect()
3232 trace_smb3_connect_done(server->hostname, server->conn_id, &server->dstaddr); in generic_ip_connect()
3234 rc = ip_rfc1001_connect(server); in generic_ip_connect()
3240 ip_connect(struct TCP_Server_Info *server) in ip_connect() argument
3243 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr; in ip_connect()
3244 struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr; in ip_connect()
3246 if (server->dstaddr.ss_family == AF_INET6) in ip_connect()
3257 rc = generic_ip_connect(server); in ip_connect()
3265 return generic_ip_connect(server); in ip_connect()
3280 * What if we wanted to mount the server share twice once with in reset_cifs_unix_caps()
3301 cifs_dbg(FYI, "unix caps which server supports %lld\n", cap); in reset_cifs_unix_caps()
3319 cifs_dbg(VFS, "server disabled POSIX path support\n"); in reset_cifs_unix_caps()
3370 …cifs_dbg(VFS, "Negotiating Unix capabilities with the server failed. Consider mounting with the Un… in reset_cifs_unix_caps()
3438 else if (mnt_ctx->server) in cifs_mount_put_conns()
3439 cifs_put_tcp_session(mnt_ctx->server, 0); in cifs_mount_put_conns()
3442 mnt_ctx->server = NULL; in cifs_mount_put_conns()
3449 struct TCP_Server_Info *server = NULL; in cifs_mount_get_session() local
3464 server = cifs_get_tcp_session(ctx, NULL); in cifs_mount_get_session()
3465 if (IS_ERR(server)) { in cifs_mount_get_session()
3466 rc = PTR_ERR(server); in cifs_mount_get_session()
3467 server = NULL; in cifs_mount_get_session()
3472 ses = cifs_get_smb_ses(server, ctx); in cifs_mount_get_session()
3479 if ((ctx->persistent == true) && (!(ses->server->capabilities & in cifs_mount_get_session()
3481 cifs_server_dbg(VFS, "persistent handles not supported by server\n"); in cifs_mount_get_session()
3487 mnt_ctx->server = server; in cifs_mount_get_session()
3496 struct TCP_Server_Info *server; in cifs_mount_get_tcon() local
3502 if (WARN_ON_ONCE(!mnt_ctx || !mnt_ctx->server || !mnt_ctx->ses || !mnt_ctx->fs_ctx || in cifs_mount_get_tcon()
3507 server = mnt_ctx->server; in cifs_mount_get_tcon()
3511 /* search for existing tcon to this server share */ in cifs_mount_get_tcon()
3524 /* tell server which Unix caps we support */ in cifs_mount_get_tcon()
3531 spin_lock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3532 if ((tcon->ses->server->tcpStatus == CifsNeedReconnect) && in cifs_mount_get_tcon()
3535 spin_unlock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3539 spin_unlock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3542 tcon->unix_ext = 0; /* server does not support them */ in cifs_mount_get_tcon()
3545 if (!tcon->pipe && server->ops->qfs_tcon) { in cifs_mount_get_tcon()
3546 server->ops->qfs_tcon(mnt_ctx->xid, tcon, cifs_sb); in cifs_mount_get_tcon()
3559 * Clamp the rsize/wsize mount arguments if they are too big for the server in cifs_mount_get_tcon()
3564 (cifs_sb->ctx->wsize > server->ops->negotiate_wsize(tcon, ctx))) { in cifs_mount_get_tcon()
3566 round_down(server->ops->negotiate_wsize(tcon, ctx), PAGE_SIZE); in cifs_mount_get_tcon()
3568 * in the very unlikely event that the server sent a max write size under PAGE_SIZE, in cifs_mount_get_tcon()
3577 (cifs_sb->ctx->rsize > server->ops->negotiate_rsize(tcon, ctx))) in cifs_mount_get_tcon()
3578 cifs_sb->ctx->rsize = server->ops->negotiate_rsize(tcon, ctx); in cifs_mount_get_tcon()
3620 cifs_are_all_path_components_accessible(struct TCP_Server_Info *server, in cifs_are_all_path_components_accessible() argument
3635 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, ""); in cifs_are_all_path_components_accessible()
3659 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, in cifs_are_all_path_components_accessible()
3675 struct TCP_Server_Info *server = mnt_ctx->server; in cifs_is_path_remote() local
3681 if (!server->ops->is_path_accessible) in cifs_is_path_remote()
3694 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, in cifs_is_path_remote()
3700 rc = cifs_are_all_path_components_accessible(server, xid, tcon, in cifs_is_path_remote()
3727 * After reconnecting to a different server, unique ids won't match anymore, so we disable in cifs_mount()
3769 if (WARN_ON(!mnt_ctx.server)) in cifs_mount()
3828 smb_buffer->Mid = get_next_mid(ses->server); in CIFSTCon()
3842 if (ses->server->sign) in CIFSTCon()
3856 (/* server len*/ + 256 /* share len */), nls_codepage); in CIFSTCon()
3977 struct TCP_Server_Info *server) in cifs_negotiate_protocol() argument
3982 if (!server->ops->need_neg || !server->ops->negotiate) in cifs_negotiate_protocol()
3987 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
3988 if (server->tcpStatus != CifsGood && in cifs_negotiate_protocol()
3989 server->tcpStatus != CifsNew && in cifs_negotiate_protocol()
3990 server->tcpStatus != CifsNeedNegotiate) { in cifs_negotiate_protocol()
3991 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3995 if (!server->ops->need_neg(server) && in cifs_negotiate_protocol()
3996 server->tcpStatus == CifsGood) { in cifs_negotiate_protocol()
3997 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
4001 server->lstrp = jiffies; in cifs_negotiate_protocol()
4002 server->tcpStatus = CifsInNegotiate; in cifs_negotiate_protocol()
4003 server->neg_start = jiffies; in cifs_negotiate_protocol()
4004 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
4006 rc = server->ops->negotiate(xid, ses, server); in cifs_negotiate_protocol()
4016 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
4017 if (server->tcpStatus == CifsInNegotiate) in cifs_negotiate_protocol()
4018 server->tcpStatus = CifsGood; in cifs_negotiate_protocol()
4021 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
4023 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
4024 if (server->tcpStatus == CifsInNegotiate) in cifs_negotiate_protocol()
4025 server->tcpStatus = CifsNeedNegotiate; in cifs_negotiate_protocol()
4026 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
4034 struct TCP_Server_Info *server, in cifs_setup_session() argument
4038 struct TCP_Server_Info *pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; in cifs_setup_session()
4064 cifs_chan_set_in_reconnect(ses, server); in cifs_setup_session()
4077 if (server == pserver) { in cifs_setup_session()
4078 if (server->dstaddr.ss_family == AF_INET6) in cifs_setup_session()
4085 ses->capabilities = server->capabilities; in cifs_setup_session()
4087 ses->capabilities &= (~server->vals->cap_unix); in cifs_setup_session()
4099 server->sec_mode, server->capabilities, server->timeAdj); in cifs_setup_session()
4101 if (server->ops->sess_setup) in cifs_setup_session()
4102 rc = server->ops->sess_setup(xid, ses, server, nls_info); in cifs_setup_session()
4110 cifs_chan_clear_in_reconnect(ses, server); in cifs_setup_session()
4118 cifs_chan_clear_in_reconnect(ses, server); in cifs_setup_session()
4119 cifs_chan_clear_need_reconnect(ses, server); in cifs_setup_session()
4181 ++master_tcon->ses->server->srv_count; in cifs_construct_tcon()
4184 ses = cifs_get_smb_ses(master_tcon->ses->server, ctx); in cifs_construct_tcon()
4187 cifs_put_tcp_session(master_tcon->ses->server, 0); in cifs_construct_tcon()
4425 const struct smb_version_operations *ops = tcon->ses->server->ops; in cifs_tree_connect()