Lines Matching +full:tcon +full:- +full:channel
1 // SPDX-License-Identifier: LGPL-2.1
31 #include <keys/user-type.h>
74 * This should be called with server->srv_mutex held.
83 if (!server->hostname) in reconn_set_ipaddr_from_hostname()
84 return -EINVAL; in reconn_set_ipaddr_from_hostname()
87 if (server->hostname[0] == '\0') in reconn_set_ipaddr_from_hostname()
90 len = strlen(server->hostname) + 3; in reconn_set_ipaddr_from_hostname()
95 return -ENOMEM; in reconn_set_ipaddr_from_hostname()
97 scnprintf(unc, len, "\\\\%s", server->hostname); in reconn_set_ipaddr_from_hostname()
99 spin_lock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
100 ss = server->dstaddr; in reconn_set_ipaddr_from_hostname()
101 spin_unlock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
108 __func__, server->hostname, rc); in reconn_set_ipaddr_from_hostname()
110 spin_lock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
111 memcpy(&server->dstaddr, &ss, sizeof(server->dstaddr)); in reconn_set_ipaddr_from_hostname()
112 spin_unlock(&server->srv_lock); in reconn_set_ipaddr_from_hostname()
122 struct cifs_tcon *tcon = container_of(work, in smb2_query_server_interfaces() local
129 rc = SMB3_request_interfaces(0, tcon, false); in smb2_query_server_interfaces()
131 if (rc == -EOPNOTSUPP) in smb2_query_server_interfaces()
138 queue_delayed_work(cifsiod_wq, &tcon->query_interfaces, in smb2_query_server_interfaces()
159 /* If server is a channel, select the primary channel */ in cifs_signal_cifsd_for_reconnect()
160 pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; in cifs_signal_cifsd_for_reconnect()
162 /* if we need to signal just this channel */ in cifs_signal_cifsd_for_reconnect()
164 spin_lock(&server->srv_lock); in cifs_signal_cifsd_for_reconnect()
165 if (server->tcpStatus != CifsExiting) in cifs_signal_cifsd_for_reconnect()
166 server->tcpStatus = CifsNeedReconnect; in cifs_signal_cifsd_for_reconnect()
167 spin_unlock(&server->srv_lock); in cifs_signal_cifsd_for_reconnect()
172 list_for_each_entry(ses, &pserver->smb_ses_list, smb_ses_list) { in cifs_signal_cifsd_for_reconnect()
173 spin_lock(&ses->chan_lock); in cifs_signal_cifsd_for_reconnect()
174 for (i = 0; i < ses->chan_count; i++) { in cifs_signal_cifsd_for_reconnect()
175 if (!ses->chans[i].server) in cifs_signal_cifsd_for_reconnect()
178 spin_lock(&ses->chans[i].server->srv_lock); in cifs_signal_cifsd_for_reconnect()
179 if (ses->chans[i].server->tcpStatus != CifsExiting) in cifs_signal_cifsd_for_reconnect()
180 ses->chans[i].server->tcpStatus = CifsNeedReconnect; in cifs_signal_cifsd_for_reconnect()
181 spin_unlock(&ses->chans[i].server->srv_lock); in cifs_signal_cifsd_for_reconnect()
183 spin_unlock(&ses->chan_lock); in cifs_signal_cifsd_for_reconnect()
204 struct cifs_tcon *tcon; in cifs_mark_tcp_ses_conns_for_reconnect() local
212 /* If server is a channel, select the primary channel */ in cifs_mark_tcp_ses_conns_for_reconnect()
213 pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; in cifs_mark_tcp_ses_conns_for_reconnect()
223 if (server->terminate) { in cifs_mark_tcp_ses_conns_for_reconnect()
229 list_for_each_entry_safe(ses, nses, &pserver->smb_ses_list, smb_ses_list) { in cifs_mark_tcp_ses_conns_for_reconnect()
231 spin_lock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
234 spin_unlock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
239 spin_unlock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
241 spin_lock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
245 spin_unlock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
254 cifs_dbg(FYI, "%s: channel connect bitmap: 0x%lx\n", in cifs_mark_tcp_ses_conns_for_reconnect()
255 __func__, ses->chans_need_reconnect); in cifs_mark_tcp_ses_conns_for_reconnect()
257 /* If all channels need reconnect, then tcon needs reconnect */ in cifs_mark_tcp_ses_conns_for_reconnect()
259 spin_unlock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
262 spin_unlock(&ses->chan_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
264 spin_lock(&ses->ses_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
265 ses->ses_status = SES_NEED_RECON; in cifs_mark_tcp_ses_conns_for_reconnect()
266 spin_unlock(&ses->ses_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
268 list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { in cifs_mark_tcp_ses_conns_for_reconnect()
269 tcon->need_reconnect = true; in cifs_mark_tcp_ses_conns_for_reconnect()
270 spin_lock(&tcon->tc_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
271 tcon->status = TID_NEED_RECON; in cifs_mark_tcp_ses_conns_for_reconnect()
272 spin_unlock(&tcon->tc_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
274 cancel_delayed_work(&tcon->query_interfaces); in cifs_mark_tcp_ses_conns_for_reconnect()
276 if (ses->tcon_ipc) { in cifs_mark_tcp_ses_conns_for_reconnect()
277 ses->tcon_ipc->need_reconnect = true; in cifs_mark_tcp_ses_conns_for_reconnect()
278 spin_lock(&ses->tcon_ipc->tc_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
279 ses->tcon_ipc->status = TID_NEED_RECON; in cifs_mark_tcp_ses_conns_for_reconnect()
280 spin_unlock(&ses->tcon_ipc->tc_lock); in cifs_mark_tcp_ses_conns_for_reconnect()
292 server->maxBuf = 0; in cifs_abort_connection()
293 server->max_read = 0; in cifs_abort_connection()
298 if (server->ssocket) { in cifs_abort_connection()
299 cifs_dbg(FYI, "State: 0x%x Flags: 0x%lx\n", server->ssocket->state, in cifs_abort_connection()
300 server->ssocket->flags); in cifs_abort_connection()
301 kernel_sock_shutdown(server->ssocket, SHUT_WR); in cifs_abort_connection()
302 cifs_dbg(FYI, "Post shutdown state: 0x%x Flags: 0x%lx\n", server->ssocket->state, in cifs_abort_connection()
303 server->ssocket->flags); in cifs_abort_connection()
304 sock_release(server->ssocket); in cifs_abort_connection()
305 server->ssocket = NULL; in cifs_abort_connection()
307 server->sequence_number = 0; in cifs_abort_connection()
308 server->session_estab = false; in cifs_abort_connection()
309 kfree_sensitive(server->session_key.response); in cifs_abort_connection()
310 server->session_key.response = NULL; in cifs_abort_connection()
311 server->session_key.len = 0; in cifs_abort_connection()
312 server->lstrp = jiffies; in cifs_abort_connection()
317 spin_lock(&server->mid_lock); in cifs_abort_connection()
318 list_for_each_entry_safe(mid, nmid, &server->pending_mid_q, qhead) { in cifs_abort_connection()
319 kref_get(&mid->refcount); in cifs_abort_connection()
320 if (mid->mid_state == MID_REQUEST_SUBMITTED) in cifs_abort_connection()
321 mid->mid_state = MID_RETRY_NEEDED; in cifs_abort_connection()
322 list_move(&mid->qhead, &retry_list); in cifs_abort_connection()
323 mid->mid_flags |= MID_DELETED; in cifs_abort_connection()
325 spin_unlock(&server->mid_lock); in cifs_abort_connection()
330 list_del_init(&mid->qhead); in cifs_abort_connection()
331 mid->callback(mid); in cifs_abort_connection()
344 spin_lock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
345 server->nr_targets = num_targets; in cifs_tcp_ses_needs_reconnect()
346 if (server->tcpStatus == CifsExiting) { in cifs_tcp_ses_needs_reconnect()
348 spin_unlock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
349 wake_up(&server->response_q); in cifs_tcp_ses_needs_reconnect()
354 trace_smb3_reconnect(server->CurrentMid, server->conn_id, in cifs_tcp_ses_needs_reconnect()
355 server->hostname); in cifs_tcp_ses_needs_reconnect()
356 server->tcpStatus = CifsNeedReconnect; in cifs_tcp_ses_needs_reconnect()
358 spin_unlock(&server->srv_lock); in cifs_tcp_ses_needs_reconnect()
368 * wake up waiters on reconnection? - (not needed currently)
371 * the smb session (and tcon) for reconnect as well. This value
372 * doesn't really matter for non-multichannel scenario.
392 /* resolve the hostname again to make sure that IP address is up-to-date */ in __cifs_reconnect()
408 spin_lock(&server->srv_lock); in __cifs_reconnect()
409 if (server->tcpStatus != CifsExiting) in __cifs_reconnect()
410 server->tcpStatus = CifsNeedNegotiate; in __cifs_reconnect()
411 spin_unlock(&server->srv_lock); in __cifs_reconnect()
414 mod_delayed_work(cifsiod_wq, &server->reconnect, 0); in __cifs_reconnect()
416 } while (server->tcpStatus == CifsNeedReconnect); in __cifs_reconnect()
418 spin_lock(&server->srv_lock); in __cifs_reconnect()
419 if (server->tcpStatus == CifsNeedNegotiate) in __cifs_reconnect()
420 mod_delayed_work(cifsiod_wq, &server->echo, 0); in __cifs_reconnect()
421 spin_unlock(&server->srv_lock); in __cifs_reconnect()
423 wake_up(&server->response_q); in __cifs_reconnect()
434 if (server->hostname != target) { in __reconnect_target_unlocked()
437 spin_lock(&server->srv_lock); in __reconnect_target_unlocked()
438 kfree(server->hostname); in __reconnect_target_unlocked()
439 server->hostname = hostname; in __reconnect_target_unlocked()
440 spin_unlock(&server->srv_lock); in __reconnect_target_unlocked()
445 server->hostname); in __reconnect_target_unlocked()
448 /* resolve the hostname again to make sure that IP address is up-to-date. */ in __reconnect_target_unlocked()
472 return __reconnect_target_unlocked(server, server->hostname); in reconnect_target_unlocked()
496 * targets (server->nr_targets). It's also possible that the cached referral was cleared in reconnect_dfs_server()
500 mutex_lock(&server->refpath_lock); in reconnect_dfs_server()
501 if (!dfs_cache_noreq_find(server->leaf_fullpath + 1, NULL, &tl)) in reconnect_dfs_server()
503 mutex_unlock(&server->refpath_lock); in reconnect_dfs_server()
533 * process waiting for reconnect will know it needs to re-establish session and tcon in reconnect_dfs_server()
538 spin_lock(&server->srv_lock); in reconnect_dfs_server()
539 if (server->tcpStatus != CifsExiting) in reconnect_dfs_server()
540 server->tcpStatus = CifsNeedNegotiate; in reconnect_dfs_server()
541 spin_unlock(&server->srv_lock); in reconnect_dfs_server()
544 mod_delayed_work(cifsiod_wq, &server->reconnect, 0); in reconnect_dfs_server()
545 } while (server->tcpStatus == CifsNeedReconnect); in reconnect_dfs_server()
547 mutex_lock(&server->refpath_lock); in reconnect_dfs_server()
548 dfs_cache_noreq_update_tgthint(server->leaf_fullpath + 1, target_hint); in reconnect_dfs_server()
549 mutex_unlock(&server->refpath_lock); in reconnect_dfs_server()
553 spin_lock(&server->srv_lock); in reconnect_dfs_server()
554 if (server->tcpStatus == CifsNeedNegotiate) in reconnect_dfs_server()
555 mod_delayed_work(cifsiod_wq, &server->echo, 0); in reconnect_dfs_server()
556 spin_unlock(&server->srv_lock); in reconnect_dfs_server()
558 wake_up(&server->response_q); in reconnect_dfs_server()
564 mutex_lock(&server->refpath_lock); in cifs_reconnect()
565 if (!server->leaf_fullpath) { in cifs_reconnect()
566 mutex_unlock(&server->refpath_lock); in cifs_reconnect()
569 mutex_unlock(&server->refpath_lock); in cifs_reconnect()
592 if (server->tcpStatus == CifsNeedReconnect || in cifs_echo_request()
593 server->tcpStatus == CifsExiting || in cifs_echo_request()
594 server->tcpStatus == CifsNew || in cifs_echo_request()
595 (server->ops->can_echo && !server->ops->can_echo(server)) || in cifs_echo_request()
596 time_before(jiffies, server->lstrp + server->echo_interval - HZ)) in cifs_echo_request()
599 rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS; in cifs_echo_request()
606 queue_delayed_work(cifsiod_wq, &server->echo, server->echo_interval); in cifs_echo_request()
612 if (!server->bigbuf) { in allocate_buffers()
613 server->bigbuf = (char *)cifs_buf_get(); in allocate_buffers()
614 if (!server->bigbuf) { in allocate_buffers()
620 } else if (server->large_buf) { in allocate_buffers()
622 memset(server->bigbuf, 0, HEADER_SIZE(server)); in allocate_buffers()
625 if (!server->smallbuf) { in allocate_buffers()
626 server->smallbuf = (char *)cifs_small_buf_get(); in allocate_buffers()
627 if (!server->smallbuf) { in allocate_buffers()
636 memset(server->smallbuf, 0, HEADER_SIZE(server)); in allocate_buffers()
656 spin_lock(&server->srv_lock); in server_unresponsive()
657 if ((server->tcpStatus == CifsGood || in server_unresponsive()
658 server->tcpStatus == CifsNeedNegotiate) && in server_unresponsive()
659 (!server->ops->can_echo || server->ops->can_echo(server)) && in server_unresponsive()
660 time_after(jiffies, server->lstrp + 3 * server->echo_interval)) { in server_unresponsive()
661 spin_unlock(&server->srv_lock); in server_unresponsive()
663 (3 * server->echo_interval) / HZ); in server_unresponsive()
667 spin_unlock(&server->srv_lock); in server_unresponsive()
677 spin_lock(&server->req_lock); in zero_credits()
678 val = server->credits + server->echo_credits + server->oplock_credits; in zero_credits()
679 if (server->in_flight == 0 && val == 0) { in zero_credits()
680 spin_unlock(&server->req_lock); in zero_credits()
683 spin_unlock(&server->req_lock); in zero_credits()
699 return -ECONNABORTED; in cifs_readv_from_socket()
703 return -ECONNABORTED; in cifs_readv_from_socket()
704 if (cifs_rdma_enabled(server) && server->smbd_conn) in cifs_readv_from_socket()
705 length = smbd_recv(server->smbd_conn, smb_msg); in cifs_readv_from_socket()
707 length = sock_recvmsg(server->ssocket, smb_msg, 0); in cifs_readv_from_socket()
709 spin_lock(&server->srv_lock); in cifs_readv_from_socket()
710 if (server->tcpStatus == CifsExiting) { in cifs_readv_from_socket()
711 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
712 return -ESHUTDOWN; in cifs_readv_from_socket()
715 if (server->tcpStatus == CifsNeedReconnect) { in cifs_readv_from_socket()
716 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
718 return -ECONNABORTED; in cifs_readv_from_socket()
720 spin_unlock(&server->srv_lock); in cifs_readv_from_socket()
722 if (length == -ERESTARTSYS || in cifs_readv_from_socket()
723 length == -EAGAIN || in cifs_readv_from_socket()
724 length == -EINTR) { in cifs_readv_from_socket()
738 return -ECONNABORTED; in cifs_readv_from_socket()
828 cifs_set_port((struct sockaddr *)&server->dstaddr, CIFS_PORT); in is_smb_response()
843 mid->when_received = jiffies; in dequeue_mid()
845 spin_lock(&mid->server->mid_lock); in dequeue_mid()
847 mid->mid_state = MID_RESPONSE_RECEIVED; in dequeue_mid()
849 mid->mid_state = MID_RESPONSE_MALFORMED; in dequeue_mid()
854 if (mid->mid_flags & MID_DELETED) { in dequeue_mid()
855 spin_unlock(&mid->server->mid_lock); in dequeue_mid()
858 list_del_init(&mid->qhead); in dequeue_mid()
859 mid->mid_flags |= MID_DELETED; in dequeue_mid()
860 spin_unlock(&mid->server->mid_lock); in dequeue_mid()
875 return le16_to_cpu(shdr->CreditRequest); in smb2_get_credits_from_hdr()
882 if (server->ops->check_trans2 && in handle_mid()
883 server->ops->check_trans2(mid, server, buf, malformed)) in handle_mid()
885 mid->credits_received = smb2_get_credits_from_hdr(buf, server); in handle_mid()
886 mid->resp_buf = buf; in handle_mid()
887 mid->large_buf = server->large_buf; in handle_mid()
888 /* Was previous buf put in mpx struct for multi-rsp? */ in handle_mid()
889 if (!mid->multiRsp) { in handle_mid()
891 if (server->large_buf) in handle_mid()
892 server->bigbuf = NULL; in handle_mid()
894 server->smallbuf = NULL; in handle_mid()
902 bool srv_sign_required = server->sec_mode & server->vals->signing_required; in cifs_enable_signing()
903 bool srv_sign_enabled = server->sec_mode & server->vals->signing_enabled; in cifs_enable_signing()
925 return -EOPNOTSUPP; in cifs_enable_signing()
927 server->sign = true; in cifs_enable_signing()
934 return -EOPNOTSUPP; in cifs_enable_signing()
936 server->sign = true; in cifs_enable_signing()
939 if (cifs_rdma_enabled(server) && server->sign) in cifs_enable_signing()
951 spin_lock(&server->srv_lock); in clean_demultiplex_info()
952 list_del_init(&server->tcp_ses_list); in clean_demultiplex_info()
953 spin_unlock(&server->srv_lock); in clean_demultiplex_info()
955 cancel_delayed_work_sync(&server->echo); in clean_demultiplex_info()
957 spin_lock(&server->srv_lock); in clean_demultiplex_info()
958 server->tcpStatus = CifsExiting; in clean_demultiplex_info()
959 spin_unlock(&server->srv_lock); in clean_demultiplex_info()
960 wake_up_all(&server->response_q); in clean_demultiplex_info()
963 spin_lock(&server->req_lock); in clean_demultiplex_info()
964 if (server->credits <= 0) in clean_demultiplex_info()
965 server->credits = 1; in clean_demultiplex_info()
966 spin_unlock(&server->req_lock); in clean_demultiplex_info()
971 * same server - they now will see the session is in exit state and get in clean_demultiplex_info()
974 wake_up_all(&server->request_q); in clean_demultiplex_info()
979 if (server->ssocket) { in clean_demultiplex_info()
980 sock_release(server->ssocket); in clean_demultiplex_info()
981 server->ssocket = NULL; in clean_demultiplex_info()
984 if (!list_empty(&server->pending_mid_q)) { in clean_demultiplex_info()
990 spin_lock(&server->mid_lock); in clean_demultiplex_info()
991 list_for_each_safe(tmp, tmp2, &server->pending_mid_q) { in clean_demultiplex_info()
993 cifs_dbg(FYI, "Clearing mid %llu\n", mid_entry->mid); in clean_demultiplex_info()
994 kref_get(&mid_entry->refcount); in clean_demultiplex_info()
995 mid_entry->mid_state = MID_SHUTDOWN; in clean_demultiplex_info()
996 list_move(&mid_entry->qhead, &dispose_list); in clean_demultiplex_info()
997 mid_entry->mid_flags |= MID_DELETED; in clean_demultiplex_info()
999 spin_unlock(&server->mid_lock); in clean_demultiplex_info()
1004 cifs_dbg(FYI, "Callback mid %llu\n", mid_entry->mid); in clean_demultiplex_info()
1005 list_del_init(&mid_entry->qhead); in clean_demultiplex_info()
1006 mid_entry->callback(mid_entry); in clean_demultiplex_info()
1013 if (!list_empty(&server->pending_mid_q)) { in clean_demultiplex_info()
1030 kfree(server->leaf_fullpath); in clean_demultiplex_info()
1042 char *buf = server->smallbuf; in standard_receive3()
1043 unsigned int pdu_length = server->pdu_size; in standard_receive3()
1046 if (pdu_length > CIFSMaxBufSize + MAX_HEADER_SIZE(server) - in standard_receive3()
1050 return -ECONNABORTED; in standard_receive3()
1054 if (pdu_length > MAX_CIFS_SMALL_BUFFER_SIZE - 4) { in standard_receive3()
1055 server->large_buf = true; in standard_receive3()
1056 memcpy(server->bigbuf, buf, server->total_read); in standard_receive3()
1057 buf = server->bigbuf; in standard_receive3()
1061 length = cifs_read_from_socket(server, buf + HEADER_SIZE(server) - 1, in standard_receive3()
1062 pdu_length - MID_HEADER_SIZE(server)); in standard_receive3()
1066 server->total_read += length; in standard_receive3()
1068 dump_smb(buf, server->total_read); in standard_receive3()
1076 char *buf = server->large_buf ? server->bigbuf : server->smallbuf; in cifs_handle_standard()
1087 rc = server->ops->check_message(buf, server->total_read, server); in cifs_handle_standard()
1090 min_t(unsigned int, server->total_read, 48)); in cifs_handle_standard()
1092 if (server->ops->is_session_expired && in cifs_handle_standard()
1093 server->ops->is_session_expired(buf)) { in cifs_handle_standard()
1095 return -1; in cifs_handle_standard()
1098 if (server->ops->is_status_pending && in cifs_handle_standard()
1099 server->ops->is_status_pending(buf, server)) in cifs_handle_standard()
1100 return -1; in cifs_handle_standard()
1121 if (shdr->CreditRequest) { in smb2_add_credits_from_hdr()
1122 spin_lock(&server->req_lock); in smb2_add_credits_from_hdr()
1123 server->credits += le16_to_cpu(shdr->CreditRequest); in smb2_add_credits_from_hdr()
1124 scredits = server->credits; in smb2_add_credits_from_hdr()
1125 in_flight = server->in_flight; in smb2_add_credits_from_hdr()
1126 spin_unlock(&server->req_lock); in smb2_add_credits_from_hdr()
1127 wake_up(&server->request_q); in smb2_add_credits_from_hdr()
1129 trace_smb3_hdr_credits(server->CurrentMid, in smb2_add_credits_from_hdr()
1130 server->conn_id, server->hostname, scredits, in smb2_add_credits_from_hdr()
1131 le16_to_cpu(shdr->CreditRequest), in_flight); in smb2_add_credits_from_hdr()
1133 __func__, le16_to_cpu(shdr->CreditRequest), in smb2_add_credits_from_hdr()
1162 while (server->tcpStatus != CifsExiting) { in cifs_demultiplex_thread()
1169 server->large_buf = false; in cifs_demultiplex_thread()
1170 buf = server->smallbuf; in cifs_demultiplex_thread()
1178 server->total_read = length; in cifs_demultiplex_thread()
1180 server->total_read = 0; in cifs_demultiplex_thread()
1183 * The right amount was read from socket - 4 bytes, in cifs_demultiplex_thread()
1194 server->pdu_size = pdu_length; in cifs_demultiplex_thread()
1197 if (server->pdu_size < MID_HEADER_SIZE(server)) { in cifs_demultiplex_thread()
1199 server->pdu_size); in cifs_demultiplex_thread()
1210 server->total_read += length; in cifs_demultiplex_thread()
1212 if (server->ops->next_header) { in cifs_demultiplex_thread()
1213 if (server->ops->next_header(server, buf, &next_offset)) { in cifs_demultiplex_thread()
1220 server->pdu_size = next_offset; in cifs_demultiplex_thread()
1227 if (server->ops->is_transform_hdr && in cifs_demultiplex_thread()
1228 server->ops->receive_transform && in cifs_demultiplex_thread()
1229 server->ops->is_transform_hdr(buf)) { in cifs_demultiplex_thread()
1230 length = server->ops->receive_transform(server, in cifs_demultiplex_thread()
1235 mids[0] = server->ops->find_mid(server, buf); in cifs_demultiplex_thread()
1239 if (!mids[0] || !mids[0]->receive) in cifs_demultiplex_thread()
1242 length = mids[0]->receive(server, mids[0]); in cifs_demultiplex_thread()
1252 if (server->ops->is_status_io_timeout && in cifs_demultiplex_thread()
1253 server->ops->is_status_io_timeout(buf)) { in cifs_demultiplex_thread()
1265 server->lstrp = jiffies; in cifs_demultiplex_thread()
1269 mids[i]->resp_buf_size = server->pdu_size; in cifs_demultiplex_thread()
1272 if (server->ops->is_network_name_deleted && in cifs_demultiplex_thread()
1273 server->ops->is_network_name_deleted(bufs[i], in cifs_demultiplex_thread()
1280 if (!mids[i]->multiRsp || mids[i]->multiEnd) in cifs_demultiplex_thread()
1281 mids[i]->callback(mids[i]); in cifs_demultiplex_thread()
1284 } else if (server->ops->is_oplock_break && in cifs_demultiplex_thread()
1285 server->ops->is_oplock_break(bufs[i], in cifs_demultiplex_thread()
1296 if (server->ops->dump_detail) in cifs_demultiplex_thread()
1297 server->ops->dump_detail(bufs[i], in cifs_demultiplex_thread()
1304 if (pdu_length > server->pdu_size) { in cifs_demultiplex_thread()
1307 pdu_length -= server->pdu_size; in cifs_demultiplex_thread()
1308 server->total_read = 0; in cifs_demultiplex_thread()
1309 server->large_buf = false; in cifs_demultiplex_thread()
1310 buf = server->smallbuf; in cifs_demultiplex_thread()
1320 /* buffer usually freed in free_mid - need to free it here on exit */ in cifs_demultiplex_thread()
1321 cifs_buf_release(server->bigbuf); in cifs_demultiplex_thread()
1322 if (server->smallbuf) /* no sense logging a debug message if NULL */ in cifs_demultiplex_thread()
1323 cifs_small_buf_release(server->smallbuf); in cifs_demultiplex_thread()
1325 task_to_wake = xchg(&server->tsk, NULL); in cifs_demultiplex_thread()
1328 /* if server->tsk was NULL then wait for a signal before exiting */ in cifs_demultiplex_thread()
1350 switch (srcaddr->sa_family) { in cifs_ipaddr_cmp()
1352 switch (rhs->sa_family) { in cifs_ipaddr_cmp()
1359 return -1; in cifs_ipaddr_cmp()
1362 switch (rhs->sa_family) { in cifs_ipaddr_cmp()
1364 return -1; in cifs_ipaddr_cmp()
1371 return -1; in cifs_ipaddr_cmp()
1375 switch (rhs->sa_family) { in cifs_ipaddr_cmp()
1378 return -1; in cifs_ipaddr_cmp()
1384 return -1; in cifs_ipaddr_cmp()
1388 return -1; /* don't expect to be here */ in cifs_ipaddr_cmp()
1399 switch (srcaddr->sa_family) { in cifs_match_ipaddr()
1401 return (rhs->sa_family == AF_UNSPEC); in cifs_match_ipaddr()
1405 return (saddr4->sin_addr.s_addr == vaddr4->sin_addr.s_addr); in cifs_match_ipaddr()
1410 return (ipv6_addr_equal(&saddr6->sin6_addr, &vaddr6->sin6_addr) in cifs_match_ipaddr()
1411 && saddr6->sin6_scope_id == vaddr6->sin6_scope_id); in cifs_match_ipaddr()
1421 * and if it fails - with 139 ports. It should be called only if address
1430 if (server->rdma) in match_port()
1433 switch (addr->sa_family) { in match_port()
1435 sport = &((struct sockaddr_in *) &server->dstaddr)->sin_port; in match_port()
1436 port = ((struct sockaddr_in *) addr)->sin_port; in match_port()
1439 sport = &((struct sockaddr_in6 *) &server->dstaddr)->sin6_port; in match_port()
1440 port = ((struct sockaddr_in6 *) addr)->sin6_port; in match_port()
1460 if (!cifs_match_ipaddr(addr, (struct sockaddr *)&server->dstaddr)) in match_server_address()
1470 * The select_sectype function should either return the ctx->sectype in match_security()
1474 if (server->ops->select_sectype(server, ctx->sectype) in match_security()
1481 * the server->sign had better be too. in match_security()
1483 if (ctx->sign && !server->sign) in match_security()
1494 struct sockaddr *addr = (struct sockaddr *)&ctx->dstaddr; in match_server()
1496 lockdep_assert_held(&server->srv_lock); in match_server()
1498 if (ctx->nosharesock) in match_server()
1502 if (server->nosharesock) in match_server()
1506 if (strcmp(ctx->vals->version_string, SMB3ANY_VERSION_STRING) == 0) { in match_server()
1507 if (server->vals->protocol_id < SMB30_PROT_ID) in match_server()
1509 } else if (strcmp(ctx->vals->version_string, in match_server()
1511 if (server->vals->protocol_id < SMB21_PROT_ID) in match_server()
1513 } else if ((server->vals != ctx->vals) || (server->ops != ctx->ops)) in match_server()
1516 if (!net_eq(cifs_net_ns(server), current->nsproxy->net_ns)) in match_server()
1519 if (!cifs_match_ipaddr((struct sockaddr *)&ctx->srcaddr, in match_server()
1520 (struct sockaddr *)&server->srcaddr)) in match_server()
1524 * really match either @server->leaf_fullpath or @server->dstaddr in match_server()
1526 * server -- in case of domain-based DFS referrals or DFS links -- as in match_server()
1529 * Otherwise, match the DFS referral in @server->leaf_fullpath or the in match_server()
1530 * destination address in @server->dstaddr. in match_server()
1536 if (!ctx->nodfs) { in match_server()
1537 if (server->leaf_fullpath) { in match_server()
1538 if (!ctx->leaf_fullpath || in match_server()
1539 strcasecmp(server->leaf_fullpath, in match_server()
1540 ctx->leaf_fullpath)) in match_server()
1542 } else if (ctx->leaf_fullpath) { in match_server()
1545 } else if (server->leaf_fullpath) { in match_server()
1554 if (!server->leaf_fullpath && in match_server()
1555 (strcasecmp(server->hostname, ctx->server_hostname) || in match_server()
1563 if (server->echo_interval != ctx->echo_interval * HZ) in match_server()
1566 if (server->rdma != ctx->rdma) in match_server()
1569 if (server->ignore_signature != ctx->ignore_signature) in match_server()
1572 if (server->min_offload != ctx->min_offload) in match_server()
1585 spin_lock(&server->srv_lock); in cifs_find_tcp_session()
1592 spin_unlock(&server->srv_lock); in cifs_find_tcp_session()
1595 spin_unlock(&server->srv_lock); in cifs_find_tcp_session()
1597 ++server->srv_count; in cifs_find_tcp_session()
1612 if (--server->srv_count > 0) { in cifs_put_tcp_session()
1618 WARN_ON(server->srv_count < 0); in cifs_put_tcp_session()
1622 list_del_init(&server->tcp_ses_list); in cifs_put_tcp_session()
1625 cancel_delayed_work_sync(&server->echo); in cifs_put_tcp_session()
1634 cancel_delayed_work(&server->reconnect); in cifs_put_tcp_session()
1636 cancel_delayed_work_sync(&server->reconnect); in cifs_put_tcp_session()
1638 /* For secondary channels, we pick up ref-count on the primary server */ in cifs_put_tcp_session()
1640 cifs_put_tcp_session(server->primary_server, from_reconnect); in cifs_put_tcp_session()
1642 spin_lock(&server->srv_lock); in cifs_put_tcp_session()
1643 server->tcpStatus = CifsExiting; in cifs_put_tcp_session()
1644 spin_unlock(&server->srv_lock); in cifs_put_tcp_session()
1648 kfree_sensitive(server->session_key.response); in cifs_put_tcp_session()
1649 server->session_key.response = NULL; in cifs_put_tcp_session()
1650 server->session_key.len = 0; in cifs_put_tcp_session()
1651 kfree(server->hostname); in cifs_put_tcp_session()
1652 server->hostname = NULL; in cifs_put_tcp_session()
1654 task = xchg(&server->tsk, NULL); in cifs_put_tcp_session()
1666 cifs_dbg(FYI, "UNC: %s\n", ctx->UNC); in cifs_get_tcp_session()
1675 rc = -ENOMEM; in cifs_get_tcp_session()
1679 tcp_ses->hostname = kstrdup(ctx->server_hostname, GFP_KERNEL); in cifs_get_tcp_session()
1680 if (!tcp_ses->hostname) { in cifs_get_tcp_session()
1681 rc = -ENOMEM; in cifs_get_tcp_session()
1685 if (ctx->leaf_fullpath) { in cifs_get_tcp_session()
1686 tcp_ses->leaf_fullpath = kstrdup(ctx->leaf_fullpath, GFP_KERNEL); in cifs_get_tcp_session()
1687 if (!tcp_ses->leaf_fullpath) { in cifs_get_tcp_session()
1688 rc = -ENOMEM; in cifs_get_tcp_session()
1693 if (ctx->nosharesock) in cifs_get_tcp_session()
1694 tcp_ses->nosharesock = true; in cifs_get_tcp_session()
1696 tcp_ses->ops = ctx->ops; in cifs_get_tcp_session()
1697 tcp_ses->vals = ctx->vals; in cifs_get_tcp_session()
1698 cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns)); in cifs_get_tcp_session()
1700 tcp_ses->conn_id = atomic_inc_return(&tcpSesNextId); in cifs_get_tcp_session()
1701 tcp_ses->noblockcnt = ctx->rootfs; in cifs_get_tcp_session()
1702 tcp_ses->noblocksnd = ctx->noblocksnd || ctx->rootfs; in cifs_get_tcp_session()
1703 tcp_ses->noautotune = ctx->noautotune; in cifs_get_tcp_session()
1704 tcp_ses->tcp_nodelay = ctx->sockopt_tcp_nodelay; in cifs_get_tcp_session()
1705 tcp_ses->rdma = ctx->rdma; in cifs_get_tcp_session()
1706 tcp_ses->in_flight = 0; in cifs_get_tcp_session()
1707 tcp_ses->max_in_flight = 0; in cifs_get_tcp_session()
1708 tcp_ses->credits = 1; in cifs_get_tcp_session()
1711 ++primary_server->srv_count; in cifs_get_tcp_session()
1713 tcp_ses->primary_server = primary_server; in cifs_get_tcp_session()
1715 init_waitqueue_head(&tcp_ses->response_q); in cifs_get_tcp_session()
1716 init_waitqueue_head(&tcp_ses->request_q); in cifs_get_tcp_session()
1717 INIT_LIST_HEAD(&tcp_ses->pending_mid_q); in cifs_get_tcp_session()
1718 mutex_init(&tcp_ses->_srv_mutex); in cifs_get_tcp_session()
1719 memcpy(tcp_ses->workstation_RFC1001_name, in cifs_get_tcp_session()
1720 ctx->source_rfc1001_name, RFC1001_NAME_LEN_WITH_NULL); in cifs_get_tcp_session()
1721 memcpy(tcp_ses->server_RFC1001_name, in cifs_get_tcp_session()
1722 ctx->target_rfc1001_name, RFC1001_NAME_LEN_WITH_NULL); in cifs_get_tcp_session()
1723 tcp_ses->session_estab = false; in cifs_get_tcp_session()
1724 tcp_ses->sequence_number = 0; in cifs_get_tcp_session()
1725 tcp_ses->channel_sequence_num = 0; /* only tracked for primary channel */ in cifs_get_tcp_session()
1726 tcp_ses->reconnect_instance = 1; in cifs_get_tcp_session()
1727 tcp_ses->lstrp = jiffies; in cifs_get_tcp_session()
1728 tcp_ses->compress_algorithm = cpu_to_le16(ctx->compression); in cifs_get_tcp_session()
1729 spin_lock_init(&tcp_ses->req_lock); in cifs_get_tcp_session()
1730 spin_lock_init(&tcp_ses->srv_lock); in cifs_get_tcp_session()
1731 spin_lock_init(&tcp_ses->mid_lock); in cifs_get_tcp_session()
1732 INIT_LIST_HEAD(&tcp_ses->tcp_ses_list); in cifs_get_tcp_session()
1733 INIT_LIST_HEAD(&tcp_ses->smb_ses_list); in cifs_get_tcp_session()
1734 INIT_DELAYED_WORK(&tcp_ses->echo, cifs_echo_request); in cifs_get_tcp_session()
1735 INIT_DELAYED_WORK(&tcp_ses->reconnect, smb2_reconnect_server); in cifs_get_tcp_session()
1736 mutex_init(&tcp_ses->reconnect_mutex); in cifs_get_tcp_session()
1738 mutex_init(&tcp_ses->refpath_lock); in cifs_get_tcp_session()
1740 memcpy(&tcp_ses->srcaddr, &ctx->srcaddr, in cifs_get_tcp_session()
1741 sizeof(tcp_ses->srcaddr)); in cifs_get_tcp_session()
1742 memcpy(&tcp_ses->dstaddr, &ctx->dstaddr, in cifs_get_tcp_session()
1743 sizeof(tcp_ses->dstaddr)); in cifs_get_tcp_session()
1744 if (ctx->use_client_guid) in cifs_get_tcp_session()
1745 memcpy(tcp_ses->client_guid, ctx->client_guid, in cifs_get_tcp_session()
1748 generate_random_uuid(tcp_ses->client_guid); in cifs_get_tcp_session()
1754 tcp_ses->tcpStatus = CifsNew; in cifs_get_tcp_session()
1755 ++tcp_ses->srv_count; in cifs_get_tcp_session()
1757 if (ctx->echo_interval >= SMB_ECHO_INTERVAL_MIN && in cifs_get_tcp_session()
1758 ctx->echo_interval <= SMB_ECHO_INTERVAL_MAX) in cifs_get_tcp_session()
1759 tcp_ses->echo_interval = ctx->echo_interval * HZ; in cifs_get_tcp_session()
1761 tcp_ses->echo_interval = SMB_ECHO_INTERVAL_DEFAULT * HZ; in cifs_get_tcp_session()
1762 if (tcp_ses->rdma) { in cifs_get_tcp_session()
1765 rc = -ENOENT; in cifs_get_tcp_session()
1768 tcp_ses->smbd_conn = smbd_get_connection( in cifs_get_tcp_session()
1769 tcp_ses, (struct sockaddr *)&ctx->dstaddr); in cifs_get_tcp_session()
1770 if (tcp_ses->smbd_conn) { in cifs_get_tcp_session()
1775 rc = -ENOENT; in cifs_get_tcp_session()
1790 tcp_ses->tsk = kthread_run(cifs_demultiplex_thread, in cifs_get_tcp_session()
1792 if (IS_ERR(tcp_ses->tsk)) { in cifs_get_tcp_session()
1793 rc = PTR_ERR(tcp_ses->tsk); in cifs_get_tcp_session()
1798 tcp_ses->min_offload = ctx->min_offload; in cifs_get_tcp_session()
1804 spin_lock(&tcp_ses->srv_lock); in cifs_get_tcp_session()
1805 tcp_ses->tcpStatus = CifsNeedNegotiate; in cifs_get_tcp_session()
1806 spin_unlock(&tcp_ses->srv_lock); in cifs_get_tcp_session()
1808 if ((ctx->max_credits < 20) || (ctx->max_credits > 60000)) in cifs_get_tcp_session()
1809 tcp_ses->max_credits = SMB2_MAX_CREDITS_AVAILABLE; in cifs_get_tcp_session()
1811 tcp_ses->max_credits = ctx->max_credits; in cifs_get_tcp_session()
1813 tcp_ses->nr_targets = 1; in cifs_get_tcp_session()
1814 tcp_ses->ignore_signature = ctx->ignore_signature; in cifs_get_tcp_session()
1817 list_add(&tcp_ses->tcp_ses_list, &cifs_tcp_ses_list); in cifs_get_tcp_session()
1821 queue_delayed_work(cifsiod_wq, &tcp_ses->echo, tcp_ses->echo_interval); in cifs_get_tcp_session()
1833 cifs_put_tcp_session(tcp_ses->primary_server, false); in cifs_get_tcp_session()
1834 kfree(tcp_ses->hostname); in cifs_get_tcp_session()
1835 kfree(tcp_ses->leaf_fullpath); in cifs_get_tcp_session()
1836 if (tcp_ses->ssocket) in cifs_get_tcp_session()
1837 sock_release(tcp_ses->ssocket); in cifs_get_tcp_session()
1846 if (ctx->sectype != Unspecified && in match_session()
1847 ctx->sectype != ses->sectype) in match_session()
1854 if (ses->chan_max < ctx->max_channels) in match_session()
1857 switch (ses->sectype) { in match_session()
1859 if (!uid_eq(ctx->cred_uid, ses->cred_uid)) in match_session()
1864 if (ses->user_name == NULL) { in match_session()
1865 if (!ctx->nullauth) in match_session()
1871 if (strncmp(ses->user_name, in match_session()
1872 ctx->username ? ctx->username : "", in match_session()
1875 if ((ctx->username && strlen(ctx->username) != 0) && in match_session()
1876 ses->password != NULL && in match_session()
1877 strncmp(ses->password, in match_session()
1878 ctx->password ? ctx->password : "", in match_session()
1883 if (strcmp(ctx->local_nls->charset, ses->local_nls->charset)) in match_session()
1890 * cifs_setup_ipc - helper to setup the IPC tcon for the session
1896 * tcon_ipc. The IPC tcon has the same lifetime as the session.
1902 struct cifs_tcon *tcon; in cifs_setup_ipc() local
1905 struct TCP_Server_Info *server = ses->server; in cifs_setup_ipc()
1911 if (ctx->seal) { in cifs_setup_ipc()
1912 if (server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) in cifs_setup_ipc()
1917 return -EOPNOTSUPP; in cifs_setup_ipc()
1922 tcon = tcon_info_alloc(false); in cifs_setup_ipc()
1923 if (tcon == NULL) in cifs_setup_ipc()
1924 return -ENOMEM; in cifs_setup_ipc()
1926 spin_lock(&server->srv_lock); in cifs_setup_ipc()
1927 scnprintf(unc, sizeof(unc), "\\\\%s\\IPC$", server->hostname); in cifs_setup_ipc()
1928 spin_unlock(&server->srv_lock); in cifs_setup_ipc()
1931 tcon->ses = ses; in cifs_setup_ipc()
1932 tcon->ipc = true; in cifs_setup_ipc()
1933 tcon->seal = seal; in cifs_setup_ipc()
1934 rc = server->ops->tree_connect(xid, ses, unc, tcon, ctx->local_nls); in cifs_setup_ipc()
1939 tconInfoFree(tcon); in cifs_setup_ipc()
1943 cifs_dbg(FYI, "IPC tcon rc=%d ipc tid=0x%x\n", rc, tcon->tid); in cifs_setup_ipc()
1945 spin_lock(&tcon->tc_lock); in cifs_setup_ipc()
1946 tcon->status = TID_GOOD; in cifs_setup_ipc()
1947 spin_unlock(&tcon->tc_lock); in cifs_setup_ipc()
1948 ses->tcon_ipc = tcon; in cifs_setup_ipc()
1954 * cifs_free_ipc - helper to release the session IPC tcon
1963 * specified in MS-SMB2 3.3.5.6 Receiving an SMB2 LOGOFF Request.
1968 struct cifs_tcon *tcon = ses->tcon_ipc; in cifs_free_ipc() local
1970 if (tcon == NULL) in cifs_free_ipc()
1973 tconInfoFree(tcon); in cifs_free_ipc()
1974 ses->tcon_ipc = NULL; in cifs_free_ipc()
1984 list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) { in cifs_find_smb_ses()
1985 spin_lock(&ses->ses_lock); in cifs_find_smb_ses()
1986 if (ses->ses_status == SES_EXITING) { in cifs_find_smb_ses()
1987 spin_unlock(&ses->ses_lock); in cifs_find_smb_ses()
1990 spin_lock(&ses->chan_lock); in cifs_find_smb_ses()
1992 spin_unlock(&ses->chan_lock); in cifs_find_smb_ses()
1993 spin_unlock(&ses->ses_lock); in cifs_find_smb_ses()
1997 spin_unlock(&ses->chan_lock); in cifs_find_smb_ses()
1998 spin_unlock(&ses->ses_lock); in cifs_find_smb_ses()
2010 struct TCP_Server_Info *server = ses->server; in __cifs_put_smb_ses()
2012 spin_lock(&ses->ses_lock); in __cifs_put_smb_ses()
2013 if (ses->ses_status == SES_EXITING) { in __cifs_put_smb_ses()
2014 spin_unlock(&ses->ses_lock); in __cifs_put_smb_ses()
2017 spin_unlock(&ses->ses_lock); in __cifs_put_smb_ses()
2019 cifs_dbg(FYI, "%s: ses_count=%d\n", __func__, ses->ses_count); in __cifs_put_smb_ses()
2021 "%s: ses ipc: %s\n", __func__, ses->tcon_ipc ? ses->tcon_ipc->tree_name : "NONE"); in __cifs_put_smb_ses()
2024 if (--ses->ses_count > 0) { in __cifs_put_smb_ses()
2028 spin_lock(&ses->ses_lock); in __cifs_put_smb_ses()
2029 if (ses->ses_status == SES_GOOD) in __cifs_put_smb_ses()
2030 ses->ses_status = SES_EXITING; in __cifs_put_smb_ses()
2031 spin_unlock(&ses->ses_lock); in __cifs_put_smb_ses()
2035 WARN_ON(ses->ses_count < 0); in __cifs_put_smb_ses()
2037 spin_lock(&ses->ses_lock); in __cifs_put_smb_ses()
2038 if (ses->ses_status == SES_EXITING && server->ops->logoff) { in __cifs_put_smb_ses()
2039 spin_unlock(&ses->ses_lock); in __cifs_put_smb_ses()
2042 rc = server->ops->logoff(xid, ses); in __cifs_put_smb_ses()
2048 spin_unlock(&ses->ses_lock); in __cifs_put_smb_ses()
2053 list_del_init(&ses->smb_ses_list); in __cifs_put_smb_ses()
2056 chan_count = ses->chan_count; in __cifs_put_smb_ses()
2063 if (ses->chans[i].iface) { in __cifs_put_smb_ses()
2064 kref_put(&ses->chans[i].iface->refcount, release_iface); in __cifs_put_smb_ses()
2065 ses->chans[i].iface = NULL; in __cifs_put_smb_ses()
2067 cifs_put_tcp_session(ses->chans[i].server, 0); in __cifs_put_smb_ses()
2068 ses->chans[i].server = NULL; in __cifs_put_smb_ses()
2072 /* we now account for primary channel in iface->refcount */ in __cifs_put_smb_ses()
2073 if (ses->chans[0].iface) { in __cifs_put_smb_ses()
2074 kref_put(&ses->chans[0].iface->refcount, release_iface); in __cifs_put_smb_ses()
2075 ses->chans[0].server = NULL; in __cifs_put_smb_ses()
2097 struct TCP_Server_Info *server = ses->server; in cifs_set_cifscreds()
2104 return -ENOMEM; in cifs_set_cifscreds()
2107 switch (server->dstaddr.ss_family) { in cifs_set_cifscreds()
2109 sa = (struct sockaddr_in *)&server->dstaddr; in cifs_set_cifscreds()
2110 sprintf(desc, "cifs:a:%pI4", &sa->sin_addr.s_addr); in cifs_set_cifscreds()
2113 sa6 = (struct sockaddr_in6 *)&server->dstaddr; in cifs_set_cifscreds()
2114 sprintf(desc, "cifs:a:%pI6c", &sa6->sin6_addr.s6_addr); in cifs_set_cifscreds()
2118 server->dstaddr.ss_family); in cifs_set_cifscreds()
2119 rc = -EINVAL; in cifs_set_cifscreds()
2126 if (!ses->domainName) { in cifs_set_cifscreds()
2133 sprintf(desc, "cifs:d:%s", ses->domainName); in cifs_set_cifscreds()
2143 down_read(&key->sem); in cifs_set_cifscreds()
2146 rc = upayload ? PTR_ERR(upayload) : -EINVAL; in cifs_set_cifscreds()
2151 payload = upayload->data; in cifs_set_cifscreds()
2152 delim = strnchr(payload, upayload->datalen, ':'); in cifs_set_cifscreds()
2156 upayload->datalen); in cifs_set_cifscreds()
2157 rc = -EINVAL; in cifs_set_cifscreds()
2161 len = delim - payload; in cifs_set_cifscreds()
2165 rc = -EINVAL; in cifs_set_cifscreds()
2169 ctx->username = kstrndup(payload, len, GFP_KERNEL); in cifs_set_cifscreds()
2170 if (!ctx->username) { in cifs_set_cifscreds()
2173 rc = -ENOMEM; in cifs_set_cifscreds()
2176 cifs_dbg(FYI, "%s: username=%s\n", __func__, ctx->username); in cifs_set_cifscreds()
2178 len = key->datalen - (len + 1); in cifs_set_cifscreds()
2181 rc = -EINVAL; in cifs_set_cifscreds()
2182 kfree(ctx->username); in cifs_set_cifscreds()
2183 ctx->username = NULL; in cifs_set_cifscreds()
2188 ctx->password = kstrndup(delim, len, GFP_KERNEL); in cifs_set_cifscreds()
2189 if (!ctx->password) { in cifs_set_cifscreds()
2192 rc = -ENOMEM; in cifs_set_cifscreds()
2193 kfree(ctx->username); in cifs_set_cifscreds()
2194 ctx->username = NULL; in cifs_set_cifscreds()
2202 if (is_domain && ses->domainName) { in cifs_set_cifscreds()
2203 ctx->domainname = kstrdup(ses->domainName, GFP_KERNEL); in cifs_set_cifscreds()
2204 if (!ctx->domainname) { in cifs_set_cifscreds()
2207 rc = -ENOMEM; in cifs_set_cifscreds()
2208 kfree(ctx->username); in cifs_set_cifscreds()
2209 ctx->username = NULL; in cifs_set_cifscreds()
2210 kfree_sensitive(ctx->password); in cifs_set_cifscreds()
2211 ctx->password = NULL; in cifs_set_cifscreds()
2216 strscpy(ctx->workstation_name, ses->workstation_name, sizeof(ctx->workstation_name)); in cifs_set_cifscreds()
2219 up_read(&key->sem); in cifs_set_cifscreds()
2231 return -ENOSYS; in cifs_set_cifscreds()
2236 * cifs_get_smb_ses - get a session matching @ctx data from @server
2250 struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr; in cifs_get_smb_ses()
2251 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr; in cifs_get_smb_ses()
2258 ses->ses_status); in cifs_get_smb_ses()
2260 spin_lock(&ses->chan_lock); in cifs_get_smb_ses()
2262 spin_unlock(&ses->chan_lock); in cifs_get_smb_ses()
2265 mutex_lock(&ses->session_mutex); in cifs_get_smb_ses()
2268 mutex_unlock(&ses->session_mutex); in cifs_get_smb_ses()
2269 /* problem -- put our ses reference */ in cifs_get_smb_ses()
2276 ctx->local_nls); in cifs_get_smb_ses()
2278 mutex_unlock(&ses->session_mutex); in cifs_get_smb_ses()
2279 /* problem -- put our reference */ in cifs_get_smb_ses()
2284 mutex_unlock(&ses->session_mutex); in cifs_get_smb_ses()
2286 spin_lock(&ses->chan_lock); in cifs_get_smb_ses()
2288 spin_unlock(&ses->chan_lock); in cifs_get_smb_ses()
2296 rc = -ENOMEM; in cifs_get_smb_ses()
2304 ses->server = server; in cifs_get_smb_ses()
2305 if (server->dstaddr.ss_family == AF_INET6) in cifs_get_smb_ses()
2306 sprintf(ses->ip_addr, "%pI6", &addr6->sin6_addr); in cifs_get_smb_ses()
2308 sprintf(ses->ip_addr, "%pI4", &addr->sin_addr); in cifs_get_smb_ses()
2310 if (ctx->username) { in cifs_get_smb_ses()
2311 ses->user_name = kstrdup(ctx->username, GFP_KERNEL); in cifs_get_smb_ses()
2312 if (!ses->user_name) in cifs_get_smb_ses()
2316 /* ctx->password freed at unmount */ in cifs_get_smb_ses()
2317 if (ctx->password) { in cifs_get_smb_ses()
2318 ses->password = kstrdup(ctx->password, GFP_KERNEL); in cifs_get_smb_ses()
2319 if (!ses->password) in cifs_get_smb_ses()
2322 if (ctx->domainname) { in cifs_get_smb_ses()
2323 ses->domainName = kstrdup(ctx->domainname, GFP_KERNEL); in cifs_get_smb_ses()
2324 if (!ses->domainName) in cifs_get_smb_ses()
2328 strscpy(ses->workstation_name, ctx->workstation_name, sizeof(ses->workstation_name)); in cifs_get_smb_ses()
2330 if (ctx->domainauto) in cifs_get_smb_ses()
2331 ses->domainAuto = ctx->domainauto; in cifs_get_smb_ses()
2332 ses->cred_uid = ctx->cred_uid; in cifs_get_smb_ses()
2333 ses->linux_uid = ctx->linux_uid; in cifs_get_smb_ses()
2335 ses->sectype = ctx->sectype; in cifs_get_smb_ses()
2336 ses->sign = ctx->sign; in cifs_get_smb_ses()
2337 ses->local_nls = load_nls(ctx->local_nls->charset); in cifs_get_smb_ses()
2339 /* add server as first channel */ in cifs_get_smb_ses()
2340 spin_lock(&ses->chan_lock); in cifs_get_smb_ses()
2341 ses->chans[0].server = server; in cifs_get_smb_ses()
2342 ses->chan_count = 1; in cifs_get_smb_ses()
2343 ses->chan_max = ctx->multichannel ? ctx->max_channels:1; in cifs_get_smb_ses()
2344 ses->chans_need_reconnect = 1; in cifs_get_smb_ses()
2345 spin_unlock(&ses->chan_lock); in cifs_get_smb_ses()
2347 mutex_lock(&ses->session_mutex); in cifs_get_smb_ses()
2350 rc = cifs_setup_session(xid, ses, server, ctx->local_nls); in cifs_get_smb_ses()
2351 mutex_unlock(&ses->session_mutex); in cifs_get_smb_ses()
2353 /* each channel uses a different signing key */ in cifs_get_smb_ses()
2354 spin_lock(&ses->chan_lock); in cifs_get_smb_ses()
2355 memcpy(ses->chans[0].signkey, ses->smb3signingkey, in cifs_get_smb_ses()
2356 sizeof(ses->smb3signingkey)); in cifs_get_smb_ses()
2357 spin_unlock(&ses->chan_lock); in cifs_get_smb_ses()
2363 * success, put it on the list and add it as first channel in cifs_get_smb_ses()
2368 ses->dfs_root_ses = ctx->dfs_root_ses; in cifs_get_smb_ses()
2369 if (ses->dfs_root_ses) in cifs_get_smb_ses()
2370 ses->dfs_root_ses->ses_count++; in cifs_get_smb_ses()
2371 list_add(&ses->smb_ses_list, &server->smb_ses_list); in cifs_get_smb_ses()
2387 static int match_tcon(struct cifs_tcon *tcon, struct smb3_fs_context *ctx) in match_tcon() argument
2389 struct TCP_Server_Info *server = tcon->ses->server; in match_tcon()
2391 if (tcon->status == TID_EXITING) in match_tcon()
2394 if (tcon->origin_fullpath) { in match_tcon()
2395 if (!ctx->source || in match_tcon()
2396 !dfs_src_pathname_equal(ctx->source, in match_tcon()
2397 tcon->origin_fullpath)) in match_tcon()
2399 } else if (!server->leaf_fullpath && in match_tcon()
2400 strncmp(tcon->tree_name, ctx->UNC, MAX_TREE_SIZE)) { in match_tcon()
2403 if (tcon->seal != ctx->seal) in match_tcon()
2405 if (tcon->snapshot_time != ctx->snapshot_time) in match_tcon()
2407 if (tcon->handle_timeout != ctx->handle_timeout) in match_tcon()
2409 if (tcon->no_lease != ctx->no_lease) in match_tcon()
2411 if (tcon->nodelete != ctx->nodelete) in match_tcon()
2419 struct cifs_tcon *tcon; in cifs_find_tcon() local
2422 list_for_each_entry(tcon, &ses->tcon_list, tcon_list) { in cifs_find_tcon()
2423 spin_lock(&tcon->tc_lock); in cifs_find_tcon()
2424 if (!match_tcon(tcon, ctx)) { in cifs_find_tcon()
2425 spin_unlock(&tcon->tc_lock); in cifs_find_tcon()
2428 ++tcon->tc_count; in cifs_find_tcon()
2429 spin_unlock(&tcon->tc_lock); in cifs_find_tcon()
2431 return tcon; in cifs_find_tcon()
2438 cifs_put_tcon(struct cifs_tcon *tcon) in cifs_put_tcon() argument
2444 * IPC tcon share the lifetime of their session and are in cifs_put_tcon()
2447 if (tcon == NULL || tcon->ipc) in cifs_put_tcon()
2450 ses = tcon->ses; in cifs_put_tcon()
2451 cifs_dbg(FYI, "%s: tc_count=%d\n", __func__, tcon->tc_count); in cifs_put_tcon()
2453 spin_lock(&tcon->tc_lock); in cifs_put_tcon()
2454 if (--tcon->tc_count > 0) { in cifs_put_tcon()
2455 spin_unlock(&tcon->tc_lock); in cifs_put_tcon()
2461 WARN_ON(tcon->tc_count < 0); in cifs_put_tcon()
2463 list_del_init(&tcon->tcon_list); in cifs_put_tcon()
2464 tcon->status = TID_EXITING; in cifs_put_tcon()
2465 spin_unlock(&tcon->tc_lock); in cifs_put_tcon()
2469 cancel_delayed_work_sync(&tcon->query_interfaces); in cifs_put_tcon()
2471 cancel_delayed_work_sync(&tcon->dfs_cache_work); in cifs_put_tcon()
2474 if (tcon->use_witness) { in cifs_put_tcon()
2477 rc = cifs_swn_unregister(tcon); in cifs_put_tcon()
2485 if (ses->server->ops->tree_disconnect) in cifs_put_tcon()
2486 ses->server->ops->tree_disconnect(xid, tcon); in cifs_put_tcon()
2489 cifs_fscache_release_super_cookie(tcon); in cifs_put_tcon()
2490 tconInfoFree(tcon); in cifs_put_tcon()
2495 * cifs_get_tcon - get a tcon matching @ctx data from @ses
2499 * - tcon refcount is the number of mount points using the tcon.
2500 * - ses refcount is the number of tcon using the session.
2508 * a) a new tcon already allocated with refcount=1 (1 mount point) and
2509 * its session refcount incremented (1 new tcon). This +1 was
2512 * b) an existing tcon with refcount+1 (add a mount point to it) and
2513 * identical ses refcount (no new tcon). Because of (1) we need to
2519 struct cifs_tcon *tcon; in cifs_get_tcon() local
2523 tcon = cifs_find_tcon(ses, ctx); in cifs_get_tcon()
2524 if (tcon) { in cifs_get_tcon()
2526 * tcon has refcount already incremented but we need to in cifs_get_tcon()
2531 return tcon; in cifs_get_tcon()
2534 if (!ses->server->ops->tree_connect) { in cifs_get_tcon()
2535 rc = -ENOSYS; in cifs_get_tcon()
2539 if (ses->server->dialect >= SMB20_PROT_ID && in cifs_get_tcon()
2540 (ses->server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING)) in cifs_get_tcon()
2541 nohandlecache = ctx->nohandlecache; in cifs_get_tcon()
2544 tcon = tcon_info_alloc(!nohandlecache); in cifs_get_tcon()
2545 if (tcon == NULL) { in cifs_get_tcon()
2546 rc = -ENOMEM; in cifs_get_tcon()
2549 tcon->nohandlecache = nohandlecache; in cifs_get_tcon()
2551 if (ctx->snapshot_time) { in cifs_get_tcon()
2552 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2555 rc = -EOPNOTSUPP; in cifs_get_tcon()
2558 tcon->snapshot_time = ctx->snapshot_time; in cifs_get_tcon()
2561 if (ctx->handle_timeout) { in cifs_get_tcon()
2562 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2565 rc = -EOPNOTSUPP; in cifs_get_tcon()
2568 tcon->handle_timeout = ctx->handle_timeout; in cifs_get_tcon()
2571 tcon->ses = ses; in cifs_get_tcon()
2572 if (ctx->password) { in cifs_get_tcon()
2573 tcon->password = kstrdup(ctx->password, GFP_KERNEL); in cifs_get_tcon()
2574 if (!tcon->password) { in cifs_get_tcon()
2575 rc = -ENOMEM; in cifs_get_tcon()
2580 if (ctx->seal) { in cifs_get_tcon()
2581 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2584 rc = -EOPNOTSUPP; in cifs_get_tcon()
2586 } else if (tcon->ses->server->capabilities & in cifs_get_tcon()
2588 tcon->seal = true; in cifs_get_tcon()
2591 rc = -EOPNOTSUPP; in cifs_get_tcon()
2596 if (ctx->linux_ext) { in cifs_get_tcon()
2597 if (ses->server->posix_ext_supported) { in cifs_get_tcon()
2598 tcon->posix_extensions = true; in cifs_get_tcon()
2600 } else if ((ses->server->vals->protocol_id == SMB311_PROT_ID) || in cifs_get_tcon()
2601 (strcmp(ses->server->vals->version_string, in cifs_get_tcon()
2603 (strcmp(ses->server->vals->version_string, in cifs_get_tcon()
2606 rc = -EOPNOTSUPP; in cifs_get_tcon()
2611 rc = -EOPNOTSUPP; in cifs_get_tcon()
2617 rc = ses->server->ops->tree_connect(xid, ses, ctx->UNC, tcon, in cifs_get_tcon()
2618 ctx->local_nls); in cifs_get_tcon()
2620 cifs_dbg(FYI, "Tcon rc = %d\n", rc); in cifs_get_tcon()
2624 tcon->use_persistent = false; in cifs_get_tcon()
2626 if (ctx->persistent) { in cifs_get_tcon()
2627 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2630 rc = -EOPNOTSUPP; in cifs_get_tcon()
2632 } else if (ses->server->capabilities & in cifs_get_tcon()
2634 tcon->use_persistent = true; in cifs_get_tcon()
2638 rc = -EOPNOTSUPP; in cifs_get_tcon()
2641 } else if ((tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY) in cifs_get_tcon()
2642 && (ses->server->capabilities & SMB2_GLOBAL_CAP_PERSISTENT_HANDLES) in cifs_get_tcon()
2643 && (ctx->nopersistent == false)) { in cifs_get_tcon()
2645 tcon->use_persistent = true; in cifs_get_tcon()
2646 } else if (ctx->resilient) { in cifs_get_tcon()
2647 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2650 rc = -EOPNOTSUPP; in cifs_get_tcon()
2653 tcon->use_resilient = true; in cifs_get_tcon()
2656 tcon->use_witness = false; in cifs_get_tcon()
2657 if (IS_ENABLED(CONFIG_CIFS_SWN_UPCALL) && ctx->witness) { in cifs_get_tcon()
2658 if (ses->server->vals->protocol_id >= SMB30_PROT_ID) { in cifs_get_tcon()
2659 if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER) { in cifs_get_tcon()
2664 tcon->use_witness = true; in cifs_get_tcon()
2666 rc = cifs_swn_register(tcon); in cifs_get_tcon()
2672 /* TODO: try to extend for non-cluster uses (eg multichannel) */ in cifs_get_tcon()
2674 rc = -EOPNOTSUPP; in cifs_get_tcon()
2679 rc = -EOPNOTSUPP; in cifs_get_tcon()
2685 if (tcon->share_flags & SMB2_SHAREFLAG_NO_CACHING) { in cifs_get_tcon()
2686 if (ctx->cache_ro) in cifs_get_tcon()
2688 else if (ctx->cache_rw) in cifs_get_tcon()
2692 if (ctx->no_lease) { in cifs_get_tcon()
2693 if (ses->server->vals->protocol_id == 0) { in cifs_get_tcon()
2696 rc = -EOPNOTSUPP; in cifs_get_tcon()
2699 tcon->no_lease = ctx->no_lease; in cifs_get_tcon()
2707 tcon->retry = ctx->retry; in cifs_get_tcon()
2708 tcon->nocase = ctx->nocase; in cifs_get_tcon()
2709 tcon->broken_sparse_sup = ctx->no_sparse; in cifs_get_tcon()
2710 tcon->max_cached_dirs = ctx->max_cached_dirs; in cifs_get_tcon()
2711 tcon->nodelete = ctx->nodelete; in cifs_get_tcon()
2712 tcon->local_lease = ctx->local_lease; in cifs_get_tcon()
2713 INIT_LIST_HEAD(&tcon->pending_opens); in cifs_get_tcon()
2714 tcon->status = TID_GOOD; in cifs_get_tcon()
2716 INIT_DELAYED_WORK(&tcon->query_interfaces, in cifs_get_tcon()
2718 if (ses->server->dialect >= SMB30_PROT_ID && in cifs_get_tcon()
2719 (ses->server->capabilities & SMB2_GLOBAL_CAP_MULTI_CHANNEL)) { in cifs_get_tcon()
2721 queue_delayed_work(cifsiod_wq, &tcon->query_interfaces, in cifs_get_tcon()
2725 INIT_DELAYED_WORK(&tcon->dfs_cache_work, dfs_cache_refresh); in cifs_get_tcon()
2728 list_add(&tcon->tcon_list, &ses->tcon_list); in cifs_get_tcon()
2731 return tcon; in cifs_get_tcon()
2734 tconInfoFree(tcon); in cifs_get_tcon()
2744 if (!atomic_dec_and_test(&tlink->tl_count) || in cifs_put_tlink()
2745 test_bit(TCON_LINK_IN_TREE, &tlink->tl_flags)) { in cifs_put_tlink()
2746 tlink->tl_time = jiffies; in cifs_put_tlink()
2760 struct cifs_sb_info *new = mnt_data->cifs_sb; in compare_mount_options()
2761 unsigned int oldflags = old->mnt_cifs_flags & CIFS_MOUNT_MASK; in compare_mount_options()
2762 unsigned int newflags = new->mnt_cifs_flags & CIFS_MOUNT_MASK; in compare_mount_options()
2764 if ((sb->s_flags & CIFS_MS_MASK) != (mnt_data->flags & CIFS_MS_MASK)) in compare_mount_options()
2767 if (old->mnt_cifs_serverino_autodisabled) in compare_mount_options()
2777 if (new->ctx->wsize && new->ctx->wsize < old->ctx->wsize) in compare_mount_options()
2780 if (new->ctx->rsize && new->ctx->rsize < old->ctx->rsize) in compare_mount_options()
2783 if (!uid_eq(old->ctx->linux_uid, new->ctx->linux_uid) || in compare_mount_options()
2784 !gid_eq(old->ctx->linux_gid, new->ctx->linux_gid)) in compare_mount_options()
2787 if (old->ctx->file_mode != new->ctx->file_mode || in compare_mount_options()
2788 old->ctx->dir_mode != new->ctx->dir_mode) in compare_mount_options()
2791 if (strcmp(old->local_nls->charset, new->local_nls->charset)) in compare_mount_options()
2794 if (old->ctx->acregmax != new->ctx->acregmax) in compare_mount_options()
2796 if (old->ctx->acdirmax != new->ctx->acdirmax) in compare_mount_options()
2798 if (old->ctx->closetimeo != new->ctx->closetimeo) in compare_mount_options()
2805 struct cifs_tcon *tcon, in match_prepath() argument
2808 struct smb3_fs_context *ctx = mnt_data->ctx; in match_prepath()
2810 struct cifs_sb_info *new = mnt_data->cifs_sb; in match_prepath()
2811 bool old_set = (old->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) && in match_prepath()
2812 old->prepath; in match_prepath()
2813 bool new_set = (new->mnt_cifs_flags & CIFS_MOUNT_USE_PREFIX_PATH) && in match_prepath()
2814 new->prepath; in match_prepath()
2816 if (tcon->origin_fullpath && in match_prepath()
2817 dfs_src_pathname_equal(tcon->origin_fullpath, ctx->source)) in match_prepath()
2820 if (old_set && new_set && !strcmp(new->prepath, old->prepath)) in match_prepath()
2836 struct cifs_tcon *tcon; in cifs_match_super() local
2844 if (CIFS_MOUNT_SHUTDOWN & cifs_sb->mnt_cifs_flags) { in cifs_match_super()
2856 tcon = tlink_tcon(tlink); in cifs_match_super()
2857 ses = tcon->ses; in cifs_match_super()
2858 tcp_srv = ses->server; in cifs_match_super()
2860 ctx = mnt_data->ctx; in cifs_match_super()
2862 spin_lock(&tcp_srv->srv_lock); in cifs_match_super()
2863 spin_lock(&ses->ses_lock); in cifs_match_super()
2864 spin_lock(&ses->chan_lock); in cifs_match_super()
2865 spin_lock(&tcon->tc_lock); in cifs_match_super()
2868 !match_tcon(tcon, ctx) || in cifs_match_super()
2869 !match_prepath(sb, tcon, mnt_data)) { in cifs_match_super()
2876 spin_unlock(&tcon->tc_lock); in cifs_match_super()
2877 spin_unlock(&ses->chan_lock); in cifs_match_super()
2878 spin_unlock(&ses->ses_lock); in cifs_match_super()
2879 spin_unlock(&tcp_srv->srv_lock); in cifs_match_super()
2893 struct sock *sk = sock->sk; in cifs_reclassify_socket4()
2895 sock_lock_init_class_and_name(sk, "slock-AF_INET-CIFS", in cifs_reclassify_socket4()
2896 &cifs_slock_key[0], "sk_lock-AF_INET-CIFS", &cifs_key[0]); in cifs_reclassify_socket4()
2902 struct sock *sk = sock->sk; in cifs_reclassify_socket6()
2904 sock_lock_init_class_and_name(sk, "slock-AF_INET6-CIFS", in cifs_reclassify_socket6()
2905 &cifs_slock_key[1], "sk_lock-AF_INET6-CIFS", &cifs_key[1]); in cifs_reclassify_socket6()
2937 if (server->srcaddr.ss_family != AF_UNSPEC) { in bind_socket()
2939 struct socket *socket = server->ssocket; in bind_socket()
2941 (struct sockaddr *) &server->srcaddr, in bind_socket()
2942 sizeof(server->srcaddr)); in bind_socket()
2946 saddr4 = (struct sockaddr_in *)&server->srcaddr; in bind_socket()
2947 saddr6 = (struct sockaddr_in6 *)&server->srcaddr; in bind_socket()
2948 if (saddr6->sin6_family == AF_INET6) in bind_socket()
2950 &saddr6->sin6_addr, rc); in bind_socket()
2953 &saddr4->sin_addr.s_addr, rc); in bind_socket()
2965 * negprot - BB check reconnection in case where second in ip_rfc1001_connect()
2974 if (server->server_RFC1001_name[0] != 0) in ip_rfc1001_connect()
2976 server->server_RFC1001_name, in ip_rfc1001_connect()
2986 if (server->workstation_RFC1001_name[0] != 0) in ip_rfc1001_connect()
2988 server->workstation_RFC1001_name, in ip_rfc1001_connect()
2999 len = sizeof(req) - offsetof(struct rfc1002_session_packet, trailer.session_req); in ip_rfc1001_connect()
3001 smb_buf->smb_buf_length = cpu_to_be32((RFC1002_SESSION_REQUEST << 24) | len); in ip_rfc1001_connect()
3023 saddr = (struct sockaddr *) &server->dstaddr; in generic_ip_connect()
3025 if (server->dstaddr.ss_family == AF_INET6) { in generic_ip_connect()
3026 struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&server->dstaddr; in generic_ip_connect()
3028 sport = ipv6->sin6_port; in generic_ip_connect()
3031 cifs_dbg(FYI, "%s: connecting to [%pI6]:%d\n", __func__, &ipv6->sin6_addr, in generic_ip_connect()
3034 struct sockaddr_in *ipv4 = (struct sockaddr_in *)&server->dstaddr; in generic_ip_connect()
3036 sport = ipv4->sin_port; in generic_ip_connect()
3039 cifs_dbg(FYI, "%s: connecting to %pI4:%d\n", __func__, &ipv4->sin_addr, in generic_ip_connect()
3043 if (server->ssocket) { in generic_ip_connect()
3044 socket = server->ssocket; in generic_ip_connect()
3047 IPPROTO_TCP, &server->ssocket, 1); in generic_ip_connect()
3055 socket = server->ssocket; in generic_ip_connect()
3056 socket->sk->sk_allocation = GFP_NOFS; in generic_ip_connect()
3057 socket->sk->sk_use_task_frag = false; in generic_ip_connect()
3073 socket->sk->sk_rcvtimeo = 7 * HZ; in generic_ip_connect()
3074 socket->sk->sk_sndtimeo = 5 * HZ; in generic_ip_connect()
3077 if (server->noautotune) { in generic_ip_connect()
3078 if (socket->sk->sk_sndbuf < (200 * 1024)) in generic_ip_connect()
3079 socket->sk->sk_sndbuf = 200 * 1024; in generic_ip_connect()
3080 if (socket->sk->sk_rcvbuf < (140 * 1024)) in generic_ip_connect()
3081 socket->sk->sk_rcvbuf = 140 * 1024; in generic_ip_connect()
3084 if (server->tcp_nodelay) in generic_ip_connect()
3085 tcp_sock_set_nodelay(socket->sk); in generic_ip_connect()
3088 socket->sk->sk_sndbuf, in generic_ip_connect()
3089 socket->sk->sk_rcvbuf, socket->sk->sk_rcvtimeo); in generic_ip_connect()
3092 server->noblockcnt ? O_NONBLOCK : 0); in generic_ip_connect()
3096 * reconnect failover - if possible. in generic_ip_connect()
3098 if (server->noblockcnt && rc == -EINPROGRESS) in generic_ip_connect()
3102 trace_smb3_connect_err(server->hostname, server->conn_id, &server->dstaddr, rc); in generic_ip_connect()
3104 server->ssocket = NULL; in generic_ip_connect()
3107 trace_smb3_connect_done(server->hostname, server->conn_id, &server->dstaddr); in generic_ip_connect()
3118 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&server->dstaddr; in ip_connect()
3119 struct sockaddr_in *addr = (struct sockaddr_in *)&server->dstaddr; in ip_connect()
3121 if (server->dstaddr.ss_family == AF_INET6) in ip_connect()
3122 sport = &addr6->sin6_port; in ip_connect()
3124 sport = &addr->sin_port; in ip_connect()
3144 void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon, in reset_cifs_unix_caps() argument
3152 * Perhaps we could add a backpointer to array of sb from tcon in reset_cifs_unix_caps()
3154 * sb as NFS - then we only have one backpointer to sb. in reset_cifs_unix_caps()
3158 __u64 saved_cap = le64_to_cpu(tcon->fsUnixInfo.Capability); in reset_cifs_unix_caps()
3160 if (ctx && ctx->no_linux_ext) { in reset_cifs_unix_caps()
3161 tcon->fsUnixInfo.Capability = 0; in reset_cifs_unix_caps()
3162 tcon->unix_ext = 0; /* Unix Extensions disabled */ in reset_cifs_unix_caps()
3166 tcon->unix_ext = 1; /* Unix Extensions supported */ in reset_cifs_unix_caps()
3168 if (!tcon->unix_ext) { in reset_cifs_unix_caps()
3173 if (!CIFSSMBQFSUnixInfo(xid, tcon)) { in reset_cifs_unix_caps()
3174 __u64 cap = le64_to_cpu(tcon->fsUnixInfo.Capability); in reset_cifs_unix_caps()
3198 cifs_dbg(VFS, "per-share encryption not supported yet\n"); in reset_cifs_unix_caps()
3201 if (ctx && ctx->no_psx_acl) in reset_cifs_unix_caps()
3206 cifs_sb->mnt_cifs_flags |= in reset_cifs_unix_caps()
3210 if (ctx && ctx->posix_paths == 0) in reset_cifs_unix_caps()
3215 cifs_sb->mnt_cifs_flags |= in reset_cifs_unix_caps()
3240 if (CIFSSMBSetFSUnixInfo(xid, tcon, cap)) { in reset_cifs_unix_caps()
3253 struct smb3_fs_context *ctx = cifs_sb->ctx; in cifs_setup_cifs_sb()
3255 INIT_DELAYED_WORK(&cifs_sb->prune_tlinks, cifs_prune_tlinks); in cifs_setup_cifs_sb()
3257 spin_lock_init(&cifs_sb->tlink_tree_lock); in cifs_setup_cifs_sb()
3258 cifs_sb->tlink_tree = RB_ROOT; in cifs_setup_cifs_sb()
3261 ctx->file_mode, ctx->dir_mode); in cifs_setup_cifs_sb()
3264 if (ctx->iocharset == NULL) { in cifs_setup_cifs_sb()
3266 cifs_sb->local_nls = load_nls_default(); in cifs_setup_cifs_sb()
3268 cifs_sb->local_nls = load_nls(ctx->iocharset); in cifs_setup_cifs_sb()
3269 if (cifs_sb->local_nls == NULL) { in cifs_setup_cifs_sb()
3271 ctx->iocharset); in cifs_setup_cifs_sb()
3272 return -ELIBACC; in cifs_setup_cifs_sb()
3275 ctx->local_nls = cifs_sb->local_nls; in cifs_setup_cifs_sb()
3279 if (ctx->direct_io) in cifs_setup_cifs_sb()
3281 if (ctx->cache_ro) { in cifs_setup_cifs_sb()
3283 cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_RO_CACHE; in cifs_setup_cifs_sb()
3284 } else if (ctx->cache_rw) { in cifs_setup_cifs_sb()
3286 cifs_sb->mnt_cifs_flags |= (CIFS_MOUNT_RO_CACHE | in cifs_setup_cifs_sb()
3290 if ((ctx->cifs_acl) && (ctx->dynperm)) in cifs_setup_cifs_sb()
3293 if (ctx->prepath) { in cifs_setup_cifs_sb()
3294 cifs_sb->prepath = kstrdup(ctx->prepath, GFP_KERNEL); in cifs_setup_cifs_sb()
3295 if (cifs_sb->prepath == NULL) in cifs_setup_cifs_sb()
3296 return -ENOMEM; in cifs_setup_cifs_sb()
3297 cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH; in cifs_setup_cifs_sb()
3308 if (mnt_ctx->tcon) in cifs_mount_put_conns()
3309 cifs_put_tcon(mnt_ctx->tcon); in cifs_mount_put_conns()
3310 else if (mnt_ctx->ses) in cifs_mount_put_conns()
3311 cifs_put_smb_ses(mnt_ctx->ses); in cifs_mount_put_conns()
3312 else if (mnt_ctx->server) in cifs_mount_put_conns()
3313 cifs_put_tcp_session(mnt_ctx->server, 0); in cifs_mount_put_conns()
3314 mnt_ctx->cifs_sb->mnt_cifs_flags &= ~CIFS_MOUNT_POSIX_PATHS; in cifs_mount_put_conns()
3315 free_xid(mnt_ctx->xid); in cifs_mount_put_conns()
3328 if (WARN_ON_ONCE(!mnt_ctx || !mnt_ctx->fs_ctx)) { in cifs_mount_get_session()
3329 rc = -EINVAL; in cifs_mount_get_session()
3332 ctx = mnt_ctx->fs_ctx; in cifs_mount_get_session()
3350 if ((ctx->persistent == true) && (!(ses->server->capabilities & in cifs_mount_get_session()
3353 rc = -EOPNOTSUPP; in cifs_mount_get_session()
3357 mnt_ctx->xid = xid; in cifs_mount_get_session()
3358 mnt_ctx->server = server; in cifs_mount_get_session()
3359 mnt_ctx->ses = ses; in cifs_mount_get_session()
3360 mnt_ctx->tcon = NULL; in cifs_mount_get_session()
3370 struct cifs_tcon *tcon = NULL; in cifs_mount_get_tcon() local
3373 if (WARN_ON_ONCE(!mnt_ctx || !mnt_ctx->server || !mnt_ctx->ses || !mnt_ctx->fs_ctx || in cifs_mount_get_tcon()
3374 !mnt_ctx->cifs_sb)) { in cifs_mount_get_tcon()
3375 rc = -EINVAL; in cifs_mount_get_tcon()
3378 server = mnt_ctx->server; in cifs_mount_get_tcon()
3379 ctx = mnt_ctx->fs_ctx; in cifs_mount_get_tcon()
3380 cifs_sb = mnt_ctx->cifs_sb; in cifs_mount_get_tcon()
3382 /* search for existing tcon to this server share */ in cifs_mount_get_tcon()
3383 tcon = cifs_get_tcon(mnt_ctx->ses, ctx); in cifs_mount_get_tcon()
3384 if (IS_ERR(tcon)) { in cifs_mount_get_tcon()
3385 rc = PTR_ERR(tcon); in cifs_mount_get_tcon()
3386 tcon = NULL; in cifs_mount_get_tcon()
3391 if (tcon->posix_extensions) in cifs_mount_get_tcon()
3392 cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS; in cifs_mount_get_tcon()
3396 if (cap_unix(tcon->ses)) { in cifs_mount_get_tcon()
3401 reset_cifs_unix_caps(mnt_ctx->xid, tcon, cifs_sb, ctx); in cifs_mount_get_tcon()
3402 spin_lock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3403 if ((tcon->ses->server->tcpStatus == CifsNeedReconnect) && in cifs_mount_get_tcon()
3404 (le64_to_cpu(tcon->fsUnixInfo.Capability) & in cifs_mount_get_tcon()
3406 spin_unlock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3407 rc = -EACCES; in cifs_mount_get_tcon()
3410 spin_unlock(&tcon->ses->server->srv_lock); in cifs_mount_get_tcon()
3413 tcon->unix_ext = 0; /* server does not support them */ in cifs_mount_get_tcon()
3415 /* do not care if a following call succeed - informational */ in cifs_mount_get_tcon()
3416 if (!tcon->pipe && server->ops->qfs_tcon) { in cifs_mount_get_tcon()
3417 server->ops->qfs_tcon(mnt_ctx->xid, tcon, cifs_sb); in cifs_mount_get_tcon()
3418 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE) { in cifs_mount_get_tcon()
3419 if (tcon->fsDevInfo.DeviceCharacteristics & in cifs_mount_get_tcon()
3422 else if ((cifs_sb->mnt_cifs_flags & in cifs_mount_get_tcon()
3434 if ((cifs_sb->ctx->wsize == 0) || in cifs_mount_get_tcon()
3435 (cifs_sb->ctx->wsize > server->ops->negotiate_wsize(tcon, ctx))) { in cifs_mount_get_tcon()
3436 cifs_sb->ctx->wsize = in cifs_mount_get_tcon()
3437 round_down(server->ops->negotiate_wsize(tcon, ctx), PAGE_SIZE); in cifs_mount_get_tcon()
3442 if (cifs_sb->ctx->wsize == 0) { in cifs_mount_get_tcon()
3443 cifs_sb->ctx->wsize = PAGE_SIZE; in cifs_mount_get_tcon()
3447 if ((cifs_sb->ctx->rsize == 0) || in cifs_mount_get_tcon()
3448 (cifs_sb->ctx->rsize > server->ops->negotiate_rsize(tcon, ctx))) in cifs_mount_get_tcon()
3449 cifs_sb->ctx->rsize = server->ops->negotiate_rsize(tcon, ctx); in cifs_mount_get_tcon()
3456 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE) in cifs_mount_get_tcon()
3457 cifs_fscache_get_super_cookie(tcon); in cifs_mount_get_tcon()
3460 mnt_ctx->tcon = tcon; in cifs_mount_get_tcon()
3465 struct cifs_tcon *tcon) in mount_setup_tlink() argument
3469 /* hang the tcon off of the superblock */ in mount_setup_tlink()
3472 return -ENOMEM; in mount_setup_tlink()
3474 tlink->tl_uid = ses->linux_uid; in mount_setup_tlink()
3475 tlink->tl_tcon = tcon; in mount_setup_tlink()
3476 tlink->tl_time = jiffies; in mount_setup_tlink()
3477 set_bit(TCON_LINK_MASTER, &tlink->tl_flags); in mount_setup_tlink()
3478 set_bit(TCON_LINK_IN_TREE, &tlink->tl_flags); in mount_setup_tlink()
3480 cifs_sb->master_tlink = tlink; in mount_setup_tlink()
3481 spin_lock(&cifs_sb->tlink_tree_lock); in mount_setup_tlink()
3482 tlink_rb_insert(&cifs_sb->tlink_tree, tlink); in mount_setup_tlink()
3483 spin_unlock(&cifs_sb->tlink_tree_lock); in mount_setup_tlink()
3485 queue_delayed_work(cifsiod_wq, &cifs_sb->prune_tlinks, in mount_setup_tlink()
3493 struct cifs_tcon *tcon, in cifs_are_all_path_components_accessible() argument
3506 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, ""); in cifs_are_all_path_components_accessible()
3525 * temporarily null-terminate the path at the end of in cifs_are_all_path_components_accessible()
3530 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, in cifs_are_all_path_components_accessible()
3540 * Return -EREMOTE if it is, otherwise 0 or -errno.
3545 struct cifs_sb_info *cifs_sb = mnt_ctx->cifs_sb; in cifs_is_path_remote()
3546 struct TCP_Server_Info *server = mnt_ctx->server; in cifs_is_path_remote()
3547 unsigned int xid = mnt_ctx->xid; in cifs_is_path_remote()
3548 struct cifs_tcon *tcon = mnt_ctx->tcon; in cifs_is_path_remote() local
3549 struct smb3_fs_context *ctx = mnt_ctx->fs_ctx; in cifs_is_path_remote()
3552 if (!server->ops->is_path_accessible) in cifs_is_path_remote()
3553 return -EOPNOTSUPP; in cifs_is_path_remote()
3556 * cifs_build_path_to_root works only when we have a valid tcon in cifs_is_path_remote()
3558 full_path = cifs_build_path_to_root(ctx, cifs_sb, tcon, in cifs_is_path_remote()
3559 tcon->Flags & SMB_SHARE_IS_IN_DFS); in cifs_is_path_remote()
3561 return -ENOMEM; in cifs_is_path_remote()
3565 rc = server->ops->is_path_accessible(xid, tcon, cifs_sb, in cifs_is_path_remote()
3567 if (rc != 0 && rc != -EREMOTE) in cifs_is_path_remote()
3570 if (rc != -EREMOTE) { in cifs_is_path_remote()
3571 rc = cifs_are_all_path_components_accessible(server, xid, tcon, in cifs_is_path_remote()
3572 cifs_sb, full_path, tcon->Flags & SMB_SHARE_IS_IN_DFS); in cifs_is_path_remote()
3575 cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH; in cifs_is_path_remote()
3609 cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_USE_PREFIX_PATH; in cifs_mount()
3610 kfree(cifs_sb->prepath); in cifs_mount()
3611 cifs_sb->prepath = ctx->prepath; in cifs_mount()
3612 ctx->prepath = NULL; in cifs_mount()
3616 rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon); in cifs_mount()
3643 if (rc == -EREMOTE) in cifs_mount()
3644 rc = -EOPNOTSUPP; in cifs_mount()
3648 rc = mount_setup_tlink(cifs_sb, mnt_ctx.ses, mnt_ctx.tcon); in cifs_mount()
3666 const char *tree, struct cifs_tcon *tcon, in CIFSTCon() argument
3679 return -EIO; in CIFSTCon()
3683 return -ENOMEM; in CIFSTCon()
3690 smb_buffer->Mid = get_next_mid(ses->server); in CIFSTCon()
3691 smb_buffer->Uid = ses->Suid; in CIFSTCon()
3695 pSMB->AndXCommand = 0xFF; in CIFSTCon()
3696 pSMB->Flags = cpu_to_le16(TCON_EXTENDED_SECINFO); in CIFSTCon()
3697 bcc_ptr = &pSMB->Password[0]; in CIFSTCon()
3699 pSMB->PasswordLength = cpu_to_le16(1); /* minimum */ in CIFSTCon()
3704 if (ses->server->sign) in CIFSTCon()
3705 smb_buffer->Flags2 |= SMBFLG2_SECURITY_SIGNATURE; in CIFSTCon()
3707 if (ses->capabilities & CAP_STATUS32) { in CIFSTCon()
3708 smb_buffer->Flags2 |= SMBFLG2_ERR_STATUS; in CIFSTCon()
3710 if (ses->capabilities & CAP_DFS) { in CIFSTCon()
3711 smb_buffer->Flags2 |= SMBFLG2_DFS; in CIFSTCon()
3713 if (ses->capabilities & CAP_UNICODE) { in CIFSTCon()
3714 smb_buffer->Flags2 |= SMBFLG2_UNICODE; in CIFSTCon()
3728 count = bcc_ptr - &pSMB->Password[0]; in CIFSTCon()
3729 be32_add_cpu(&pSMB->hdr.smb_buf_length, count); in CIFSTCon()
3730 pSMB->ByteCount = cpu_to_le16(count); in CIFSTCon()
3739 tcon->tid = smb_buffer_response->Tid; in CIFSTCon()
3742 length = strnlen(bcc_ptr, bytes_left - 2); in CIFSTCon()
3743 if (smb_buffer->Flags2 & SMBFLG2_UNICODE) in CIFSTCon()
3754 tcon->ipc = true; in CIFSTCon()
3755 tcon->pipe = true; in CIFSTCon()
3764 bytes_left -= (length + 1); in CIFSTCon()
3765 strscpy(tcon->tree_name, tree, sizeof(tcon->tree_name)); in CIFSTCon()
3767 /* mostly informational -- no need to fail on error here */ in CIFSTCon()
3768 kfree(tcon->nativeFileSystem); in CIFSTCon()
3769 tcon->nativeFileSystem = cifs_strndup_from_utf16(bcc_ptr, in CIFSTCon()
3773 cifs_dbg(FYI, "nativeFileSystem=%s\n", tcon->nativeFileSystem); in CIFSTCon()
3775 if ((smb_buffer_response->WordCount == 3) || in CIFSTCon()
3776 (smb_buffer_response->WordCount == 7)) in CIFSTCon()
3778 tcon->Flags = le16_to_cpu(pSMBr->OptionalSupport); in CIFSTCon()
3780 tcon->Flags = 0; in CIFSTCon()
3781 cifs_dbg(FYI, "Tcon flags: 0x%x\n", tcon->Flags); in CIFSTCon()
3792 unload_nls(cifs_sb->local_nls); in delayed_free()
3793 smb3_cleanup_fs_context(cifs_sb->ctx); in delayed_free()
3800 struct rb_root *root = &cifs_sb->tlink_tree; in cifs_umount()
3804 cancel_delayed_work_sync(&cifs_sb->prune_tlinks); in cifs_umount()
3806 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_umount()
3810 clear_bit(TCON_LINK_IN_TREE, &tlink->tl_flags); in cifs_umount()
3813 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_umount()
3815 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_umount()
3817 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_umount()
3819 kfree(cifs_sb->prepath); in cifs_umount()
3820 call_rcu(&cifs_sb->rcu, delayed_free); in cifs_umount()
3829 if (!server->ops->need_neg || !server->ops->negotiate) in cifs_negotiate_protocol()
3830 return -ENOSYS; in cifs_negotiate_protocol()
3833 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
3834 if (server->tcpStatus != CifsGood && in cifs_negotiate_protocol()
3835 server->tcpStatus != CifsNew && in cifs_negotiate_protocol()
3836 server->tcpStatus != CifsNeedNegotiate) { in cifs_negotiate_protocol()
3837 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3838 return -EHOSTDOWN; in cifs_negotiate_protocol()
3841 if (!server->ops->need_neg(server) && in cifs_negotiate_protocol()
3842 server->tcpStatus == CifsGood) { in cifs_negotiate_protocol()
3843 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3847 server->tcpStatus = CifsInNegotiate; in cifs_negotiate_protocol()
3848 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3850 rc = server->ops->negotiate(xid, ses, server); in cifs_negotiate_protocol()
3852 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
3853 if (server->tcpStatus == CifsInNegotiate) in cifs_negotiate_protocol()
3854 server->tcpStatus = CifsGood; in cifs_negotiate_protocol()
3856 rc = -EHOSTDOWN; in cifs_negotiate_protocol()
3857 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3859 spin_lock(&server->srv_lock); in cifs_negotiate_protocol()
3860 if (server->tcpStatus == CifsInNegotiate) in cifs_negotiate_protocol()
3861 server->tcpStatus = CifsNeedNegotiate; in cifs_negotiate_protocol()
3862 spin_unlock(&server->srv_lock); in cifs_negotiate_protocol()
3873 int rc = -ENOSYS; in cifs_setup_session()
3874 struct TCP_Server_Info *pserver = SERVER_IS_CHAN(server) ? server->primary_server : server; in cifs_setup_session()
3875 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&pserver->dstaddr; in cifs_setup_session()
3876 struct sockaddr_in *addr = (struct sockaddr_in *)&pserver->dstaddr; in cifs_setup_session()
3879 spin_lock(&ses->ses_lock); in cifs_setup_session()
3880 cifs_dbg(FYI, "%s: channel connect bitmap: 0x%lx\n", in cifs_setup_session()
3881 __func__, ses->chans_need_reconnect); in cifs_setup_session()
3883 if (ses->ses_status != SES_GOOD && in cifs_setup_session()
3884 ses->ses_status != SES_NEW && in cifs_setup_session()
3885 ses->ses_status != SES_NEED_RECON) { in cifs_setup_session()
3886 spin_unlock(&ses->ses_lock); in cifs_setup_session()
3887 return -EHOSTDOWN; in cifs_setup_session()
3891 spin_lock(&ses->chan_lock); in cifs_setup_session()
3893 if (ses->ses_status == SES_NEED_RECON) in cifs_setup_session()
3894 ses->ses_status = SES_GOOD; in cifs_setup_session()
3895 spin_unlock(&ses->chan_lock); in cifs_setup_session()
3896 spin_unlock(&ses->ses_lock); in cifs_setup_session()
3902 spin_unlock(&ses->chan_lock); in cifs_setup_session()
3905 ses->ses_status = SES_IN_SETUP; in cifs_setup_session()
3908 ses->iface_last_update = 0; in cifs_setup_session()
3910 spin_unlock(&ses->ses_lock); in cifs_setup_session()
3914 if (server->dstaddr.ss_family == AF_INET6) in cifs_setup_session()
3915 scnprintf(ses->ip_addr, sizeof(ses->ip_addr), "%pI6", &addr6->sin6_addr); in cifs_setup_session()
3917 scnprintf(ses->ip_addr, sizeof(ses->ip_addr), "%pI4", &addr->sin_addr); in cifs_setup_session()
3921 ses->capabilities = server->capabilities; in cifs_setup_session()
3923 ses->capabilities &= (~server->vals->cap_unix); in cifs_setup_session()
3925 if (ses->auth_key.response) { in cifs_setup_session()
3927 ses->auth_key.response); in cifs_setup_session()
3928 kfree_sensitive(ses->auth_key.response); in cifs_setup_session()
3929 ses->auth_key.response = NULL; in cifs_setup_session()
3930 ses->auth_key.len = 0; in cifs_setup_session()
3935 server->sec_mode, server->capabilities, server->timeAdj); in cifs_setup_session()
3937 if (server->ops->sess_setup) in cifs_setup_session()
3938 rc = server->ops->sess_setup(xid, ses, server, nls_info); in cifs_setup_session()
3942 spin_lock(&ses->ses_lock); in cifs_setup_session()
3943 if (ses->ses_status == SES_IN_SETUP) in cifs_setup_session()
3944 ses->ses_status = SES_NEED_RECON; in cifs_setup_session()
3945 spin_lock(&ses->chan_lock); in cifs_setup_session()
3947 spin_unlock(&ses->chan_lock); in cifs_setup_session()
3948 spin_unlock(&ses->ses_lock); in cifs_setup_session()
3950 spin_lock(&ses->ses_lock); in cifs_setup_session()
3951 if (ses->ses_status == SES_IN_SETUP) in cifs_setup_session()
3952 ses->ses_status = SES_GOOD; in cifs_setup_session()
3953 spin_lock(&ses->chan_lock); in cifs_setup_session()
3956 spin_unlock(&ses->chan_lock); in cifs_setup_session()
3957 spin_unlock(&ses->ses_lock); in cifs_setup_session()
3966 ctx->sectype = ses->sectype; in cifs_set_vol_auth()
3969 if (ctx->sectype == Kerberos) in cifs_set_vol_auth()
3981 struct cifs_tcon *tcon = NULL; in cifs_construct_tcon() local
3986 return ERR_PTR(-ENOMEM); in cifs_construct_tcon()
3988 ctx->local_nls = cifs_sb->local_nls; in cifs_construct_tcon()
3989 ctx->linux_uid = fsuid; in cifs_construct_tcon()
3990 ctx->cred_uid = fsuid; in cifs_construct_tcon()
3991 ctx->UNC = master_tcon->tree_name; in cifs_construct_tcon()
3992 ctx->retry = master_tcon->retry; in cifs_construct_tcon()
3993 ctx->nocase = master_tcon->nocase; in cifs_construct_tcon()
3994 ctx->nohandlecache = master_tcon->nohandlecache; in cifs_construct_tcon()
3995 ctx->local_lease = master_tcon->local_lease; in cifs_construct_tcon()
3996 ctx->no_lease = master_tcon->no_lease; in cifs_construct_tcon()
3997 ctx->resilient = master_tcon->use_resilient; in cifs_construct_tcon()
3998 ctx->persistent = master_tcon->use_persistent; in cifs_construct_tcon()
3999 ctx->handle_timeout = master_tcon->handle_timeout; in cifs_construct_tcon()
4000 ctx->no_linux_ext = !master_tcon->unix_ext; in cifs_construct_tcon()
4001 ctx->linux_ext = master_tcon->posix_extensions; in cifs_construct_tcon()
4002 ctx->sectype = master_tcon->ses->sectype; in cifs_construct_tcon()
4003 ctx->sign = master_tcon->ses->sign; in cifs_construct_tcon()
4004 ctx->seal = master_tcon->seal; in cifs_construct_tcon()
4005 ctx->witness = master_tcon->use_witness; in cifs_construct_tcon()
4007 rc = cifs_set_vol_auth(ctx, master_tcon->ses); in cifs_construct_tcon()
4009 tcon = ERR_PTR(rc); in cifs_construct_tcon()
4015 ++master_tcon->ses->server->srv_count; in cifs_construct_tcon()
4018 ses = cifs_get_smb_ses(master_tcon->ses->server, ctx); in cifs_construct_tcon()
4020 tcon = (struct cifs_tcon *)ses; in cifs_construct_tcon()
4021 cifs_put_tcp_session(master_tcon->ses->server, 0); in cifs_construct_tcon()
4025 tcon = cifs_get_tcon(ses, ctx); in cifs_construct_tcon()
4026 if (IS_ERR(tcon)) { in cifs_construct_tcon()
4033 reset_cifs_unix_caps(0, tcon, NULL, ctx); in cifs_construct_tcon()
4037 kfree(ctx->username); in cifs_construct_tcon()
4038 kfree_sensitive(ctx->password); in cifs_construct_tcon()
4041 return tcon; in cifs_construct_tcon()
4054 struct rb_node *node = root->rb_node; in tlink_rb_search()
4060 if (uid_gt(tlink->tl_uid, uid)) in tlink_rb_search()
4061 node = node->rb_left; in tlink_rb_search()
4062 else if (uid_lt(tlink->tl_uid, uid)) in tlink_rb_search()
4063 node = node->rb_right; in tlink_rb_search()
4074 struct rb_node **new = &(root->rb_node), *parent = NULL; in tlink_rb_insert()
4081 if (uid_gt(tlink->tl_uid, new_tlink->tl_uid)) in tlink_rb_insert()
4082 new = &((*new)->rb_left); in tlink_rb_insert()
4084 new = &((*new)->rb_right); in tlink_rb_insert()
4087 rb_link_node(&new_tlink->tl_rbnode, parent, new); in tlink_rb_insert()
4088 rb_insert_color(&new_tlink->tl_rbnode, root); in tlink_rb_insert()
4092 * Find or construct an appropriate tcon given a cifs_sb and the fsuid of the
4096 * the master tcon for the mount.
4098 * First, search the rbtree for an existing tcon for this fsuid. If one
4114 if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER)) in cifs_sb_tlink()
4117 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_sb_tlink()
4118 tlink = tlink_rb_search(&cifs_sb->tlink_tree, fsuid); in cifs_sb_tlink()
4121 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_sb_tlink()
4126 return ERR_PTR(-ENOMEM); in cifs_sb_tlink()
4127 newtlink->tl_uid = fsuid; in cifs_sb_tlink()
4128 newtlink->tl_tcon = ERR_PTR(-EACCES); in cifs_sb_tlink()
4129 set_bit(TCON_LINK_PENDING, &newtlink->tl_flags); in cifs_sb_tlink()
4130 set_bit(TCON_LINK_IN_TREE, &newtlink->tl_flags); in cifs_sb_tlink()
4133 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_sb_tlink()
4135 tlink = tlink_rb_search(&cifs_sb->tlink_tree, fsuid); in cifs_sb_tlink()
4138 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_sb_tlink()
4143 tlink_rb_insert(&cifs_sb->tlink_tree, tlink); in cifs_sb_tlink()
4144 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_sb_tlink()
4147 ret = wait_on_bit(&tlink->tl_flags, TCON_LINK_PENDING, in cifs_sb_tlink()
4151 return ERR_PTR(-ERESTARTSYS); in cifs_sb_tlink()
4155 if (!IS_ERR(tlink->tl_tcon)) in cifs_sb_tlink()
4159 if (time_before(jiffies, tlink->tl_time + TLINK_ERROR_EXPIRE)) { in cifs_sb_tlink()
4161 return ERR_PTR(-EACCES); in cifs_sb_tlink()
4164 if (test_and_set_bit(TCON_LINK_PENDING, &tlink->tl_flags)) in cifs_sb_tlink()
4168 tlink->tl_tcon = cifs_construct_tcon(cifs_sb, fsuid); in cifs_sb_tlink()
4169 clear_bit(TCON_LINK_PENDING, &tlink->tl_flags); in cifs_sb_tlink()
4170 wake_up_bit(&tlink->tl_flags, TCON_LINK_PENDING); in cifs_sb_tlink()
4172 if (IS_ERR(tlink->tl_tcon)) { in cifs_sb_tlink()
4174 return ERR_PTR(-EACCES); in cifs_sb_tlink()
4189 struct rb_root *root = &cifs_sb->tlink_tree; in cifs_prune_tlinks()
4198 * umounts. Because this function is non-reentrant and is canceled in cifs_prune_tlinks()
4201 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_prune_tlinks()
4208 if (test_bit(TCON_LINK_MASTER, &tlink->tl_flags) || in cifs_prune_tlinks()
4209 atomic_read(&tlink->tl_count) != 0 || in cifs_prune_tlinks()
4210 time_after(tlink->tl_time + TLINK_IDLE_EXPIRE, jiffies)) in cifs_prune_tlinks()
4214 clear_bit(TCON_LINK_IN_TREE, &tlink->tl_flags); in cifs_prune_tlinks()
4217 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_prune_tlinks()
4219 spin_lock(&cifs_sb->tlink_tree_lock); in cifs_prune_tlinks()
4221 spin_unlock(&cifs_sb->tlink_tree_lock); in cifs_prune_tlinks()
4223 queue_delayed_work(cifsiod_wq, &cifs_sb->prune_tlinks, in cifs_prune_tlinks()
4228 int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc) in cifs_tree_connect() argument
4231 const struct smb_version_operations *ops = tcon->ses->server->ops; in cifs_tree_connect()
4234 spin_lock(&tcon->tc_lock); in cifs_tree_connect()
4236 /* if tcon is marked for needing reconnect, update state */ in cifs_tree_connect()
4237 if (tcon->need_reconnect) in cifs_tree_connect()
4238 tcon->status = TID_NEED_TCON; in cifs_tree_connect()
4240 if (tcon->status == TID_GOOD) { in cifs_tree_connect()
4241 spin_unlock(&tcon->tc_lock); in cifs_tree_connect()
4245 if (tcon->status != TID_NEW && in cifs_tree_connect()
4246 tcon->status != TID_NEED_TCON) { in cifs_tree_connect()
4247 spin_unlock(&tcon->tc_lock); in cifs_tree_connect()
4248 return -EHOSTDOWN; in cifs_tree_connect()
4251 tcon->status = TID_IN_TCON; in cifs_tree_connect()
4252 spin_unlock(&tcon->tc_lock); in cifs_tree_connect()
4254 rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon, nlsc); in cifs_tree_connect()
4256 spin_lock(&tcon->tc_lock); in cifs_tree_connect()
4257 if (tcon->status == TID_IN_TCON) in cifs_tree_connect()
4258 tcon->status = TID_NEED_TCON; in cifs_tree_connect()
4259 spin_unlock(&tcon->tc_lock); in cifs_tree_connect()
4261 spin_lock(&tcon->tc_lock); in cifs_tree_connect()
4262 if (tcon->status == TID_IN_TCON) in cifs_tree_connect()
4263 tcon->status = TID_GOOD; in cifs_tree_connect()
4264 tcon->need_reconnect = false; in cifs_tree_connect()
4265 spin_unlock(&tcon->tc_lock); in cifs_tree_connect()