Lines Matching +full:tcon +full:- +full:channel
1 /* SPDX-License-Identifier: LGPL-2.1 */
58 * max attribute cache timeout (jiffies) - 2^30
112 #define CIFS_DFS_ROOT_SES(ses) ((ses)->dfs_root_ses ?: (ses))
182 struct shash_desc *hmacsha256; /* hmac-sha256 hash function, for SMB2 signatures */
184 struct shash_desc *aes_cmac; /* block-cipher based MAC function, for SMB3 signatures */
186 struct crypto_aead *enc; /* smb3 encryption AEAD TFM (AES-CCM and AES-GCM) */
187 struct crypto_aead *dec; /* smb3 decryption AEAD TFM (AES-CCM and AES-GCM) */
304 * message field DataRemaining for out-of-band data read (e.g through
334 unsigned int (*negotiate_wsize)(struct cifs_tcon *tcon, struct smb3_fs_context *ctx);
336 unsigned int (*negotiate_rsize)(struct cifs_tcon *tcon, struct smb3_fs_context *ctx);
363 struct cifs_tcon *tcon,
368 int (*query_file_info)(const unsigned int xid, struct cifs_tcon *tcon,
372 struct cifs_tcon *tcon,
378 int (*get_srv_inum)(const unsigned int xid, struct cifs_tcon *tcon,
399 umode_t mode, struct cifs_tcon *tcon,
403 struct cifs_tcon *tcon, const char *name,
420 struct cifs_tcon *tcon,
426 struct cifs_tcon *tcon,
432 struct cifs_tcon *tcon,
436 /* open a file for non-posix mounts */
439 /* set fid protocol-specific info */
445 int (*close_getattr)(const unsigned int xid, struct cifs_tcon *tcon,
480 int (*oplock_response)(struct cifs_tcon *tcon, __u64 persistent_fid, __u64 volatile_fid,
503 int (*set_integrity)(const unsigned int, struct cifs_tcon *tcon,
505 int (*enum_snapshots)(const unsigned int xid, struct cifs_tcon *tcon,
569 struct cifs_tcon *tcon,
577 struct cifs_tcon *tcon,
582 int (*fiemap)(struct cifs_tcon *tcon, struct cifsFileInfo *,
596 struct cifs_tcon *tcon,
622 #define HEADER_SIZE(server) (server->vals->header_size)
623 #define MAX_HEADER_SIZE(server) (server->vals->max_header_size)
624 #define HEADER_PREAMBLE_SIZE(server) (server->vals->header_preamble_size)
625 #define MID_HEADER_SIZE(server) (HEADER_SIZE(server) - 1 - HEADER_PREAMBLE_SIZE(server))
722 /* message size the server can send or receive for non-raw SMBs */
730 __u64 CurrentMid; /* multiplex id - rotating counter, protected by GlobalMid_Lock */
792 bool noblockcnt; /* use non-blocking connect() */
795 * If this is a session channel,
796 * primary_server holds the ref-counted
797 * pointer to primary channel connection for the session.
799 #define SERVER_IS_CHAN(server) (!!(server)->primary_server)
801 __u16 channel_sequence_num; /* incremented on primary channel on each chan reconnect */
835 mutex_lock(&server->_srv_mutex); in cifs_server_lock()
836 server->nofs_flag = nofs_flag; in cifs_server_lock()
841 unsigned int nofs_flag = server->nofs_flag; in cifs_server_unlock()
843 mutex_unlock(&server->_srv_mutex); in cifs_server_unlock()
860 spin_lock(&server->req_lock); in in_flight()
861 num = server->in_flight; in in_flight()
862 spin_unlock(&server->req_lock); in in_flight()
871 spin_lock(&server->req_lock); in has_credits()
873 spin_unlock(&server->req_lock); in has_credits()
881 server->ops->add_credits(server, credits, optype); in add_credits()
888 if (credits->value) { in add_credits_and_wake_if()
889 server->ops->add_credits(server, credits, optype); in add_credits_and_wake_if()
890 wake_up(&server->request_q); in add_credits_and_wake_if()
891 credits->value = 0; in add_credits_and_wake_if()
898 server->ops->set_credits(server, val); in set_credits()
905 return server->ops->adjust_credits ? in adjust_credits()
906 server->ops->adjust_credits(server, subreq, trace) : 0; in adjust_credits()
912 return cpu_to_le64(server->ops->get_next_mid(server)); in get_next_mid64()
918 __u16 mid = server->ops->get_next_mid(server); in get_next_mid()
921 * on-the-wire decoding. in get_next_mid()
929 if (server->ops->revert_current_mid) in revert_current_mid()
930 server->ops->revert_current_mid(server, val); in revert_current_mid()
937 unsigned int num = le16_to_cpu(shdr->CreditCharge); in revert_current_mid_from_hdr()
945 return le16_to_cpu(smb->Mid); in get_mid()
951 return mid == le16_to_cpu(smb->Mid); in compare_mid()
956 * we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
967 #define CIFS_MAX_WSIZE ((1<<24) - 1 - sizeof(WRITE_REQ) + 4)
968 #define CIFS_MAX_RSIZE ((1<<24) - sizeof(READ_RSP) + 4)
972 * of 2^17-1 minus the size of the call header. That allows for a read or
975 #define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4)
976 #define CIFS_MAX_RFC1002_RSIZE ((1<<17) - 1 - sizeof(READ_RSP) + 4)
989 …s.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance…
995 * Macros to allow the TCP_Server_Info->net field and related code to drop out
1003 return srv->net; in cifs_net_ns()
1008 srv->net = net; in cifs_set_net_ns()
1047 unsigned int in_reconnect : 1; /* if session setup in progress for this channel */
1069 unsigned int overrideSecFlg; /* if non-zero override global sec flags */
1116 #define CIFS_INVAL_CHAN_INDEX (-1)
1118 ((1UL << (ses)->chan_count) - 1)
1120 (!(ses)->chans_need_reconnect)
1122 ((ses)->chans_need_reconnect == CIFS_ALL_CHANNELS_SET(ses))
1124 ((ses)->chans_need_reconnect = CIFS_ALL_CHANNELS_SET(ses))
1126 test_bit((index), &(ses)->chans_need_reconnect)
1128 ((ses)->chans[(index)].in_reconnect)
1140 * We will ask for sess and tcon reconnection only if all the
1154 return ses->server->vals->cap_unix & ses->capabilities; in cap_unix()
1206 char *password; /* for share-level security */
1262 bool need_reopen_files:1; /* need to reopen tcon file handles */
1272 __u64 snapshot_time; /* for timewarp tokens - timestamp of snapshot */
1298 * This is a refcounted and timestamped container for a tcon pointer. The
1299 * container holds a tcon reference. It is considered safe to free one of
1321 return tlink->tl_tcon; in tlink_tcon()
1327 return cifs_sb->master_tlink; in cifs_sb_master_tlink()
1336 atomic_inc(&tlink->tl_count); in cifs_get_tlink()
1394 #define ACL_NO_MODE ((umode_t)(-1))
1396 struct cifs_tcon *tcon; member
1431 /* following two lists are protected by tcon->open_file_lock */
1432 struct list_head tlist; /* pointer to next fid owned by tcon */
1434 /* lock list below protected by cifsi->lock_sem */
1471 struct cifs_tcon *tcon; member
1504 * cfile->file_info_lock held.
1509 ++cifs_file->count; in cifsFileInfo_get_locked()
1524 #define CIFS_CACHE_READ(cinode) ((cinode->oplock & CIFS_CACHE_READ_FLG) || (CIFS_SB(cinode->netfs.i…
1525 #define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG)
1526 #define CIFS_CACHE_WRITE(cinode) ((cinode->oplock & CIFS_CACHE_WRITE_FLG) || (CIFS_SB(cinode->netfs…
1578 return sb->s_fs_info; in CIFS_SB()
1584 return CIFS_SB(file_inode(file)->i_sb); in CIFS_FILE_SB()
1589 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) in CIFS_DIR_SEP()
1612 static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon, in cifs_stats_bytes_written() argument
1616 spin_lock(&tcon->stat_lock); in cifs_stats_bytes_written()
1617 tcon->bytes_written += bytes; in cifs_stats_bytes_written()
1618 spin_unlock(&tcon->stat_lock); in cifs_stats_bytes_written()
1622 static inline void cifs_stats_bytes_read(struct cifs_tcon *tcon, in cifs_stats_bytes_read() argument
1625 spin_lock(&tcon->stat_lock); in cifs_stats_bytes_read()
1626 tcon->bytes_read += bytes; in cifs_stats_bytes_read()
1627 spin_unlock(&tcon->stat_lock); in cifs_stats_bytes_read()
1636 * - This will be called by cifsd, with no locks held.
1637 * - The mid will still be on the pending_mid_q.
1638 * - mid->resp_buf will point to the current buffer.
1651 * - it will be called by cifsd, with no locks held
1652 * - the mid will be removed from any lists
1697 struct cifs_tcon *tcon; member
1707 atomic_inc(&server->in_send); in cifs_in_send_inc()
1712 atomic_dec(&server->in_send); in cifs_in_send_dec()
1717 atomic_inc(&server->num_waiters); in cifs_num_waiters_inc()
1722 atomic_dec(&server->num_waiters); in cifs_num_waiters_dec()
1728 mid->when_sent = jiffies; in cifs_save_when_sent()
1771 struct cifs_tcon *tcon; member
1776 kfree(param->path_name); in __free_dfs_info_param()
1777 kfree(param->node_name); in __free_dfs_info_param()
1811 case -EINTR: in is_interrupt_error()
1812 case -ERESTARTSYS: in is_interrupt_error()
1813 case -ERESTARTNOHAND: in is_interrupt_error()
1814 case -ERESTARTNOINTR: in is_interrupt_error()
1822 if (is_interrupt_error(error) || error == -EAGAIN) in is_retryable_error()
1829 if (error == -EAGAIN || error == -ECONNABORTED) in is_replayable_error()
1863 #define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */
1948 * vol_info->ctx_lock vol_info->ctx
1949 * cifs_sb_info->tlink_tree_lock cifs_sb_info->tlink_tree cifs_setup_cifs_sb
1950 * TCP_Server_Info-> TCP_Server_Info cifs_get_tcp_session
1952 * TCP_Server_Info->srv_mutex TCP_Server_Info cifs_get_tcp_session
1953 * cifs_ses->session_mutex cifs_ses sesInfoAlloc
1955 * cifs_tcon->open_file_lock cifs_tcon->openFileList tconInfoAlloc
1956 * cifs_tcon->pending_opens
1957 * cifs_tcon->stat_lock cifs_tcon->bytes_read tconInfoAlloc
1958 * cifs_tcon->bytes_written
1963 * TCP_Server_Info->srv_lock (anything in struct not protected by another lock and can change)
1964 * TCP_Server_Info->mid_lock TCP_Server_Info->pending_mid_q cifs_get_tcp_session
1965 * ->CurrentMid
1967 * TCP_Server_Info->req_lock TCP_Server_Info->in_flight cifs_get_tcp_session
1968 * ->credits
1969 * ->echo_credits
1970 * ->oplock_credits
1971 * ->reconnect_instance
1972 * cifs_ses->ses_lock (anything that is not protected by another lock and can change)
1973 * cifs_ses->iface_lock cifs_ses->iface_list sesInfoAlloc
1974 * ->iface_count
1975 * ->iface_last_update
1976 * cifs_ses->chan_lock cifs_ses->chans
1977 * ->chans_need_reconnect
1978 * ->chans_in_reconnect
1979 * cifs_tcon->tc_lock (anything that is not protected by another lock and can change)
1980 * inode->i_rwsem, taken by fs/netfs/locking.c e.g. should be taken before cifsInodeInfo locks
1981 * cifsInodeInfo->open_file_lock cifsInodeInfo->openFileList cifs_alloc_inode
1982 * cifsInodeInfo->writers_lock cifsInodeInfo->writers cifsInodeInfo_alloc
1983 * cifsInodeInfo->lock_sem cifsInodeInfo->llist cifs_init_once
1984 * ->can_cache_brlcks
1985 * cifsInodeInfo->deferred_lock cifsInodeInfo->deferred_closes cifsInodeInfo_alloc
1986 * cached_fid->fid_mutex cifs_tcon->crfid tcon_info_alloc
1987 * cifsFileInfo->fh_mutex cifsFileInfo cifs_new_fileinfo
1988 * cifsFileInfo->file_info_lock cifsFileInfo->count cifs_new_fileinfo
1989 * ->invalidHandle initiate_cifs_search
1990 * ->oplock_break_cancelled
2010 * tcp session, and the list of tcon's per smb session. It also protects
2011 * the reference counters for the server, smb session, and tcon.
2013 * tcon->open_file_lock and that before file->file_info_lock since the
2014 * structure order is cifs_socket-->cifs_ses-->cifs_tcon-->cifs_file
2051 extern bool enable_gcm_256; /* allow optional negotiate of strongest signing (aes-gcm-256) */
2052 extern bool require_gcm_256; /* require use of strongest signing (aes-gcm-256) */
2126 return strcmp(server->vals->version_string, SMB1_VERSION_STRING) == 0; in is_smb1_server()
2129 static inline bool is_tcon_dfs(struct cifs_tcon *tcon) in is_tcon_dfs() argument
2132 * For SMB1, see MS-CIFS 2.4.55 SMB_COM_TREE_CONNECT_ANDX (0x75) and MS-CIFS 3.3.4.4 DFS in is_tcon_dfs()
2135 * For SMB2+, see MS-SMB2 2.2.10 SMB2 TREE_CONNECT Response and MS-SMB2 3.3.4.14 Server in is_tcon_dfs()
2138 if (!tcon || !tcon->ses || !tcon->ses->server) in is_tcon_dfs()
2140 return is_smb1_server(tcon->ses->server) ? tcon->Flags & SMB_SHARE_IS_IN_DFS : in is_tcon_dfs()
2141 tcon->share_flags & (SHI1005_FLAGS_DFS | SHI1005_FLAGS_DFS_ROOT); in is_tcon_dfs()
2144 static inline bool cifs_is_referral_server(struct cifs_tcon *tcon, in cifs_is_referral_server() argument
2149 * MS-DFSC 2.2.4 RESP_GET_DFS_REFERRAL. in cifs_is_referral_server()
2151 return is_tcon_dfs(tcon) || (ref && (ref->flags & DFSREF_REFERRAL_SERVER)); in cifs_is_referral_server()
2156 return (u64)fl->fl_end - fl->fl_start + 1; in cifs_flock_len()
2161 if (WARN_ON_ONCE(!ses || !ses->server)) in ntlmssp_workstation_name_size()
2167 if (ses->server->dialect <= SMB20_PROT_ID) in ntlmssp_workstation_name_size()
2168 return min_t(size_t, sizeof(ses->workstation_name), RFC1001_NAME_LEN_WITH_NULL); in ntlmssp_workstation_name_size()
2169 return sizeof(ses->workstation_name); in ntlmssp_workstation_name_size()
2174 memcpy(dst, src, (size_t)((u8 *)&src->AccessFlags - (u8 *)src)); in move_cifs_info_to_smb2()
2175 dst->AccessFlags = src->AccessFlags; in move_cifs_info_to_smb2()
2176 dst->CurrentByteOffset = src->CurrentByteOffset; in move_cifs_info_to_smb2()
2177 dst->Mode = src->Mode; in move_cifs_info_to_smb2()
2178 dst->AlignmentRequirement = src->AlignmentRequirement; in move_cifs_info_to_smb2()
2179 dst->FileNameLength = src->FileNameLength; in move_cifs_info_to_smb2()
2209 * Instead, we convert to a BVEC-type iterator higher up. in cifs_get_num_sgs()
2213 return -EIO; in cifs_get_num_sgs()
2220 return -EIO; in cifs_get_num_sgs()
2225 addr = (unsigned long)iov->iov_base + skip; in cifs_get_num_sgs()
2227 len = iov->iov_len - skip; in cifs_get_num_sgs()
2255 unsigned int len = min_t(unsigned int, buflen, PAGE_SIZE - off); in cifs_sg_set_buf()
2257 sg_set_page(&sgtable->sgl[sgtable->nents++], in cifs_sg_set_buf()
2262 buflen -= len; in cifs_sg_set_buf()
2265 sg_set_page(&sgtable->sgl[sgtable->nents++], in cifs_sg_set_buf()
2272 .tcon = _tcon, \
2299 spin_lock(&ses->ses_lock); in cifs_ses_exiting()
2300 ret = ses->ses_status == SES_EXITING; in cifs_ses_exiting()
2301 spin_unlock(&ses->ses_lock); in cifs_ses_exiting()