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- /*
- * SMB2 version specific operations
- *
- * Copyright (c) 2012, Jeff Layton <jlayton@redhat.com>
- *
- * This library is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License v2 as published
- * by the Free Software Foundation.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include <linux/pagemap.h>
- #include <linux/vfs.h>
- #include "cifsglob.h"
- #include "smb2pdu.h"
- #include "smb2proto.h"
- #include "cifsproto.h"
- #include "cifs_debug.h"
- #include "cifs_unicode.h"
- #include "smb2status.h"
- #include "smb2glob.h"
- static int
- change_conf(struct TCP_Server_Info *server)
- {
- server->credits += server->echo_credits + server->oplock_credits;
- server->oplock_credits = server->echo_credits = 0;
- switch (server->credits) {
- case 0:
- return -1;
- case 1:
- server->echoes = false;
- server->oplocks = false;
- cifs_dbg(VFS, "disabling echoes and oplocks\n");
- break;
- case 2:
- server->echoes = true;
- server->oplocks = false;
- server->echo_credits = 1;
- cifs_dbg(FYI, "disabling oplocks\n");
- break;
- default:
- server->echoes = true;
- server->oplocks = true;
- server->echo_credits = 1;
- server->oplock_credits = 1;
- }
- server->credits -= server->echo_credits + server->oplock_credits;
- return 0;
- }
- static void
- smb2_add_credits(struct TCP_Server_Info *server, const unsigned int add,
- const int optype)
- {
- int *val, rc = 0;
- spin_lock(&server->req_lock);
- val = server->ops->get_credits_field(server, optype);
- *val += add;
- server->in_flight--;
- if (server->in_flight == 0 && (optype & CIFS_OP_MASK) != CIFS_NEG_OP)
- rc = change_conf(server);
- /*
- * Sometimes server returns 0 credits on oplock break ack - we need to
- * rebalance credits in this case.
- */
- else if (server->in_flight > 0 && server->oplock_credits == 0 &&
- server->oplocks) {
- if (server->credits > 1) {
- server->credits--;
- server->oplock_credits++;
- }
- }
- spin_unlock(&server->req_lock);
- wake_up(&server->request_q);
- if (rc)
- cifs_reconnect(server);
- }
- static void
- smb2_set_credits(struct TCP_Server_Info *server, const int val)
- {
- spin_lock(&server->req_lock);
- server->credits = val;
- spin_unlock(&server->req_lock);
- }
- static int *
- smb2_get_credits_field(struct TCP_Server_Info *server, const int optype)
- {
- switch (optype) {
- case CIFS_ECHO_OP:
- return &server->echo_credits;
- case CIFS_OBREAK_OP:
- return &server->oplock_credits;
- default:
- return &server->credits;
- }
- }
- static unsigned int
- smb2_get_credits(struct mid_q_entry *mid)
- {
- return le16_to_cpu(((struct smb2_hdr *)mid->resp_buf)->CreditRequest);
- }
- static __u64
- smb2_get_next_mid(struct TCP_Server_Info *server)
- {
- __u64 mid;
- /* for SMB2 we need the current value */
- spin_lock(&GlobalMid_Lock);
- mid = server->CurrentMid++;
- spin_unlock(&GlobalMid_Lock);
- return mid;
- }
- static struct mid_q_entry *
- smb2_find_mid(struct TCP_Server_Info *server, char *buf)
- {
- struct mid_q_entry *mid;
- struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
- spin_lock(&GlobalMid_Lock);
- list_for_each_entry(mid, &server->pending_mid_q, qhead) {
- if ((mid->mid == hdr->MessageId) &&
- (mid->mid_state == MID_REQUEST_SUBMITTED) &&
- (mid->command == hdr->Command)) {
- spin_unlock(&GlobalMid_Lock);
- return mid;
- }
- }
- spin_unlock(&GlobalMid_Lock);
- return NULL;
- }
- static void
- smb2_dump_detail(void *buf)
- {
- #ifdef CONFIG_CIFS_DEBUG2
- struct smb2_hdr *smb = (struct smb2_hdr *)buf;
- cifs_dbg(VFS, "Cmd: %d Err: 0x%x Flags: 0x%x Mid: %llu Pid: %d\n",
- smb->Command, smb->Status, smb->Flags, smb->MessageId,
- smb->ProcessId);
- cifs_dbg(VFS, "smb buf %p len %u\n", smb, smb2_calc_size(smb));
- #endif
- }
- static bool
- smb2_need_neg(struct TCP_Server_Info *server)
- {
- return server->max_read == 0;
- }
- static int
- smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
- {
- int rc;
- ses->server->CurrentMid = 0;
- rc = SMB2_negotiate(xid, ses);
- /* BB we probably don't need to retry with modern servers */
- if (rc == -EAGAIN)
- rc = -EHOSTDOWN;
- return rc;
- }
- static unsigned int
- smb2_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
- {
- struct TCP_Server_Info *server = tcon->ses->server;
- unsigned int wsize;
- /* start with specified wsize, or default */
- wsize = volume_info->wsize ? volume_info->wsize : CIFS_DEFAULT_IOSIZE;
- wsize = min_t(unsigned int, wsize, server->max_write);
- /*
- * limit write size to 2 ** 16, because we don't support multicredit
- * requests now.
- */
- wsize = min_t(unsigned int, wsize, 2 << 15);
- return wsize;
- }
- static unsigned int
- smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
- {
- struct TCP_Server_Info *server = tcon->ses->server;
- unsigned int rsize;
- /* start with specified rsize, or default */
- rsize = volume_info->rsize ? volume_info->rsize : CIFS_DEFAULT_IOSIZE;
- rsize = min_t(unsigned int, rsize, server->max_read);
- /*
- * limit write size to 2 ** 16, because we don't support multicredit
- * requests now.
- */
- rsize = min_t(unsigned int, rsize, 2 << 15);
- return rsize;
- }
- #ifdef CONFIG_CIFS_STATS2
- static int
- SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
- {
- int rc;
- unsigned int ret_data_len = 0;
- struct network_interface_info_ioctl_rsp *out_buf;
- rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
- FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
- NULL /* no data input */, 0 /* no data input */,
- (char **)&out_buf, &ret_data_len);
- if ((rc == 0) && (ret_data_len > 0)) {
- /* Dump info on first interface */
- cifs_dbg(FYI, "Adapter Capability 0x%x\t",
- le32_to_cpu(out_buf->Capability));
- cifs_dbg(FYI, "Link Speed %lld\n",
- le64_to_cpu(out_buf->LinkSpeed));
- } else
- cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
- return rc;
- }
- #endif /* STATS2 */
- static void
- smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
- {
- int rc;
- __le16 srch_path = 0; /* Null - open root of share */
- u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = &fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
- if (rc)
- return;
- #ifdef CONFIG_CIFS_STATS2
- SMB3_request_interfaces(xid, tcon);
- #endif /* STATS2 */
- SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- FS_ATTRIBUTE_INFORMATION);
- SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- FS_DEVICE_INFORMATION);
- SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
- SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
- return;
- }
- static void
- smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
- {
- int rc;
- __le16 srch_path = 0; /* Null - open root of share */
- u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = &fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
- if (rc)
- return;
- SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- FS_ATTRIBUTE_INFORMATION);
- SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- FS_DEVICE_INFORMATION);
- SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
- return;
- }
- static int
- smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb, const char *full_path)
- {
- int rc;
- __le16 *utf16_path;
- __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = &fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
- if (rc) {
- kfree(utf16_path);
- return rc;
- }
- rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
- kfree(utf16_path);
- return rc;
- }
- static int
- smb2_get_srv_inum(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb, const char *full_path,
- u64 *uniqueid, FILE_ALL_INFO *data)
- {
- *uniqueid = le64_to_cpu(data->IndexNumber);
- return 0;
- }
- static int
- smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_fid *fid, FILE_ALL_INFO *data)
- {
- int rc;
- struct smb2_file_all_info *smb2_data;
- smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
- GFP_KERNEL);
- if (smb2_data == NULL)
- return -ENOMEM;
- rc = SMB2_query_info(xid, tcon, fid->persistent_fid, fid->volatile_fid,
- smb2_data);
- if (!rc)
- move_smb2_info_to_cifs(data, smb2_data);
- kfree(smb2_data);
- return rc;
- }
- static bool
- smb2_can_echo(struct TCP_Server_Info *server)
- {
- return server->echoes;
- }
- static void
- smb2_clear_stats(struct cifs_tcon *tcon)
- {
- #ifdef CONFIG_CIFS_STATS
- int i;
- for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) {
- atomic_set(&tcon->stats.smb2_stats.smb2_com_sent[i], 0);
- atomic_set(&tcon->stats.smb2_stats.smb2_com_failed[i], 0);
- }
- #endif
- }
- static void
- smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
- {
- seq_puts(m, "\n\tShare Capabilities:");
- if (tcon->capabilities & SMB2_SHARE_CAP_DFS)
- seq_puts(m, " DFS,");
- if (tcon->capabilities & SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY)
- seq_puts(m, " CONTINUOUS AVAILABILITY,");
- if (tcon->capabilities & SMB2_SHARE_CAP_SCALEOUT)
- seq_puts(m, " SCALEOUT,");
- if (tcon->capabilities & SMB2_SHARE_CAP_CLUSTER)
- seq_puts(m, " CLUSTER,");
- if (tcon->capabilities & SMB2_SHARE_CAP_ASYMMETRIC)
- seq_puts(m, " ASYMMETRIC,");
- if (tcon->capabilities == 0)
- seq_puts(m, " None");
- if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
- seq_puts(m, " Aligned,");
- if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
- seq_puts(m, " Partition Aligned,");
- if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
- seq_puts(m, " SSD,");
- if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
- seq_puts(m, " TRIM-support,");
- seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
- if (tcon->perf_sector_size)
- seq_printf(m, "\tOptimal sector size: 0x%x",
- tcon->perf_sector_size);
- }
- static void
- smb2_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
- {
- #ifdef CONFIG_CIFS_STATS
- atomic_t *sent = tcon->stats.smb2_stats.smb2_com_sent;
- atomic_t *failed = tcon->stats.smb2_stats.smb2_com_failed;
- seq_printf(m, "\nNegotiates: %d sent %d failed",
- atomic_read(&sent[SMB2_NEGOTIATE_HE]),
- atomic_read(&failed[SMB2_NEGOTIATE_HE]));
- seq_printf(m, "\nSessionSetups: %d sent %d failed",
- atomic_read(&sent[SMB2_SESSION_SETUP_HE]),
- atomic_read(&failed[SMB2_SESSION_SETUP_HE]));
- seq_printf(m, "\nLogoffs: %d sent %d failed",
- atomic_read(&sent[SMB2_LOGOFF_HE]),
- atomic_read(&failed[SMB2_LOGOFF_HE]));
- seq_printf(m, "\nTreeConnects: %d sent %d failed",
- atomic_read(&sent[SMB2_TREE_CONNECT_HE]),
- atomic_read(&failed[SMB2_TREE_CONNECT_HE]));
- seq_printf(m, "\nTreeDisconnects: %d sent %d failed",
- atomic_read(&sent[SMB2_TREE_DISCONNECT_HE]),
- atomic_read(&failed[SMB2_TREE_DISCONNECT_HE]));
- seq_printf(m, "\nCreates: %d sent %d failed",
- atomic_read(&sent[SMB2_CREATE_HE]),
- atomic_read(&failed[SMB2_CREATE_HE]));
- seq_printf(m, "\nCloses: %d sent %d failed",
- atomic_read(&sent[SMB2_CLOSE_HE]),
- atomic_read(&failed[SMB2_CLOSE_HE]));
- seq_printf(m, "\nFlushes: %d sent %d failed",
- atomic_read(&sent[SMB2_FLUSH_HE]),
- atomic_read(&failed[SMB2_FLUSH_HE]));
- seq_printf(m, "\nReads: %d sent %d failed",
- atomic_read(&sent[SMB2_READ_HE]),
- atomic_read(&failed[SMB2_READ_HE]));
- seq_printf(m, "\nWrites: %d sent %d failed",
- atomic_read(&sent[SMB2_WRITE_HE]),
- atomic_read(&failed[SMB2_WRITE_HE]));
- seq_printf(m, "\nLocks: %d sent %d failed",
- atomic_read(&sent[SMB2_LOCK_HE]),
- atomic_read(&failed[SMB2_LOCK_HE]));
- seq_printf(m, "\nIOCTLs: %d sent %d failed",
- atomic_read(&sent[SMB2_IOCTL_HE]),
- atomic_read(&failed[SMB2_IOCTL_HE]));
- seq_printf(m, "\nCancels: %d sent %d failed",
- atomic_read(&sent[SMB2_CANCEL_HE]),
- atomic_read(&failed[SMB2_CANCEL_HE]));
- seq_printf(m, "\nEchos: %d sent %d failed",
- atomic_read(&sent[SMB2_ECHO_HE]),
- atomic_read(&failed[SMB2_ECHO_HE]));
- seq_printf(m, "\nQueryDirectories: %d sent %d failed",
- atomic_read(&sent[SMB2_QUERY_DIRECTORY_HE]),
- atomic_read(&failed[SMB2_QUERY_DIRECTORY_HE]));
- seq_printf(m, "\nChangeNotifies: %d sent %d failed",
- atomic_read(&sent[SMB2_CHANGE_NOTIFY_HE]),
- atomic_read(&failed[SMB2_CHANGE_NOTIFY_HE]));
- seq_printf(m, "\nQueryInfos: %d sent %d failed",
- atomic_read(&sent[SMB2_QUERY_INFO_HE]),
- atomic_read(&failed[SMB2_QUERY_INFO_HE]));
- seq_printf(m, "\nSetInfos: %d sent %d failed",
- atomic_read(&sent[SMB2_SET_INFO_HE]),
- atomic_read(&failed[SMB2_SET_INFO_HE]));
- seq_printf(m, "\nOplockBreaks: %d sent %d failed",
- atomic_read(&sent[SMB2_OPLOCK_BREAK_HE]),
- atomic_read(&failed[SMB2_OPLOCK_BREAK_HE]));
- #endif
- }
- static void
- smb2_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
- {
- struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
- struct TCP_Server_Info *server = tlink_tcon(cfile->tlink)->ses->server;
- cfile->fid.persistent_fid = fid->persistent_fid;
- cfile->fid.volatile_fid = fid->volatile_fid;
- server->ops->set_oplock_level(cinode, oplock, fid->epoch,
- &fid->purge_cache);
- cinode->can_cache_brlcks = CIFS_CACHE_WRITE(cinode);
- }
- static void
- smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_fid *fid)
- {
- SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
- }
- static int
- SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
- u64 persistent_fid, u64 volatile_fid,
- struct copychunk_ioctl *pcchunk)
- {
- int rc;
- unsigned int ret_data_len;
- struct resume_key_req *res_key;
- rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
- FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
- NULL, 0 /* no input */,
- (char **)&res_key, &ret_data_len);
- if (rc) {
- cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
- goto req_res_key_exit;
- }
- if (ret_data_len < sizeof(struct resume_key_req)) {
- cifs_dbg(VFS, "Invalid refcopy resume key length\n");
- rc = -EINVAL;
- goto req_res_key_exit;
- }
- memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
- req_res_key_exit:
- kfree(res_key);
- return rc;
- }
- static int
- smb2_clone_range(const unsigned int xid,
- struct cifsFileInfo *srcfile,
- struct cifsFileInfo *trgtfile, u64 src_off,
- u64 len, u64 dest_off)
- {
- int rc;
- unsigned int ret_data_len;
- struct copychunk_ioctl *pcchunk;
- char *retbuf = NULL;
- pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
- if (pcchunk == NULL)
- return -ENOMEM;
- cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n");
- /* Request a key from the server to identify the source of the copy */
- rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
- srcfile->fid.persistent_fid,
- srcfile->fid.volatile_fid, pcchunk);
- /* Note: request_res_key sets res_key null only if rc !=0 */
- if (rc)
- return rc;
- /* For now array only one chunk long, will make more flexible later */
- pcchunk->ChunkCount = __constant_cpu_to_le32(1);
- pcchunk->Reserved = 0;
- pcchunk->SourceOffset = cpu_to_le64(src_off);
- pcchunk->TargetOffset = cpu_to_le64(dest_off);
- pcchunk->Length = cpu_to_le32(len);
- pcchunk->Reserved2 = 0;
- /* Request that server copy to target from src file identified by key */
- rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink),
- trgtfile->fid.persistent_fid,
- trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
- true /* is_fsctl */, (char *)pcchunk,
- sizeof(struct copychunk_ioctl), &retbuf, &ret_data_len);
- /* BB need to special case rc = EINVAL to alter chunk size */
- cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len);
- kfree(pcchunk);
- return rc;
- }
- static int
- smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_fid *fid)
- {
- return SMB2_flush(xid, tcon, fid->persistent_fid, fid->volatile_fid);
- }
- static unsigned int
- smb2_read_data_offset(char *buf)
- {
- struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
- return rsp->DataOffset;
- }
- static unsigned int
- smb2_read_data_length(char *buf)
- {
- struct smb2_read_rsp *rsp = (struct smb2_read_rsp *)buf;
- return le32_to_cpu(rsp->DataLength);
- }
- static int
- smb2_sync_read(const unsigned int xid, struct cifsFileInfo *cfile,
- struct cifs_io_parms *parms, unsigned int *bytes_read,
- char **buf, int *buf_type)
- {
- parms->persistent_fid = cfile->fid.persistent_fid;
- parms->volatile_fid = cfile->fid.volatile_fid;
- return SMB2_read(xid, parms, bytes_read, buf, buf_type);
- }
- static int
- smb2_sync_write(const unsigned int xid, struct cifsFileInfo *cfile,
- struct cifs_io_parms *parms, unsigned int *written,
- struct kvec *iov, unsigned long nr_segs)
- {
- parms->persistent_fid = cfile->fid.persistent_fid;
- parms->volatile_fid = cfile->fid.volatile_fid;
- return SMB2_write(xid, parms, written, iov, nr_segs);
- }
- static int
- smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifsFileInfo *cfile, __u64 size, bool set_alloc)
- {
- __le64 eof = cpu_to_le64(size);
- return SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid, cfile->pid, &eof);
- }
- static int
- smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifsFileInfo *cfile)
- {
- return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
- cfile->fid.volatile_fid);
- }
- static int
- smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
- const char *path, struct cifs_sb_info *cifs_sb,
- struct cifs_fid *fid, __u16 search_flags,
- struct cifs_search_info *srch_inf)
- {
- __le16 *utf16_path;
- int rc;
- __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
- kfree(utf16_path);
- if (rc) {
- cifs_dbg(VFS, "open dir failed\n");
- return rc;
- }
- srch_inf->entries_in_buffer = 0;
- srch_inf->index_of_last_entry = 0;
- rc = SMB2_query_directory(xid, tcon, fid->persistent_fid,
- fid->volatile_fid, 0, srch_inf);
- if (rc) {
- cifs_dbg(VFS, "query directory failed\n");
- SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
- }
- return rc;
- }
- static int
- smb2_query_dir_next(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_fid *fid, __u16 search_flags,
- struct cifs_search_info *srch_inf)
- {
- return SMB2_query_directory(xid, tcon, fid->persistent_fid,
- fid->volatile_fid, 0, srch_inf);
- }
- static int
- smb2_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_fid *fid)
- {
- return SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
- }
- /*
- * If we negotiate SMB2 protocol and get STATUS_PENDING - update
- * the number of credits and return true. Otherwise - return false.
- */
- static bool
- smb2_is_status_pending(char *buf, struct TCP_Server_Info *server, int length)
- {
- struct smb2_hdr *hdr = (struct smb2_hdr *)buf;
- if (hdr->Status != STATUS_PENDING)
- return false;
- if (!length) {
- spin_lock(&server->req_lock);
- server->credits += le16_to_cpu(hdr->CreditRequest);
- spin_unlock(&server->req_lock);
- wake_up(&server->request_q);
- }
- return true;
- }
- static int
- smb2_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
- struct cifsInodeInfo *cinode)
- {
- if (tcon->ses->server->capabilities & SMB2_GLOBAL_CAP_LEASING)
- return SMB2_lease_break(0, tcon, cinode->lease_key,
- smb2_get_lease_state(cinode));
- return SMB2_oplock_break(0, tcon, fid->persistent_fid,
- fid->volatile_fid,
- CIFS_CACHE_READ(cinode) ? 1 : 0);
- }
- static int
- smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
- struct kstatfs *buf)
- {
- int rc;
- __le16 srch_path = 0; /* Null - open root of share */
- u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = &fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
- if (rc)
- return rc;
- buf->f_type = SMB2_MAGIC_NUMBER;
- rc = SMB2_QFS_info(xid, tcon, fid.persistent_fid, fid.volatile_fid,
- buf);
- SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
- return rc;
- }
- static bool
- smb2_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
- {
- return ob1->fid.persistent_fid == ob2->fid.persistent_fid &&
- ob1->fid.volatile_fid == ob2->fid.volatile_fid;
- }
- static int
- smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
- __u64 length, __u32 type, int lock, int unlock, bool wait)
- {
- if (unlock && !lock)
- type = SMB2_LOCKFLAG_UNLOCK;
- return SMB2_lock(xid, tlink_tcon(cfile->tlink),
- cfile->fid.persistent_fid, cfile->fid.volatile_fid,
- current->tgid, length, offset, type, wait);
- }
- static void
- smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid)
- {
- memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE);
- }
- static void
- smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid)
- {
- memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
- }
- static void
- smb2_new_lease_key(struct cifs_fid *fid)
- {
- get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE);
- }
- static int
- smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
- const char *full_path, char **target_path,
- struct cifs_sb_info *cifs_sb)
- {
- int rc;
- __le16 *utf16_path;
- __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- struct smb2_err_rsp *err_buf = NULL;
- struct smb2_symlink_err_rsp *symlink;
- unsigned int sub_len, sub_offset;
- cifs_dbg(FYI, "%s: path: %s\n", __func__, full_path);
- utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
- oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
- oparms.disposition = FILE_OPEN;
- oparms.create_options = 0;
- oparms.fid = &fid;
- oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_buf);
- if (!rc || !err_buf) {
- kfree(utf16_path);
- return -ENOENT;
- }
- /* open must fail on symlink - reset rc */
- rc = 0;
- symlink = (struct smb2_symlink_err_rsp *)err_buf->ErrorData;
- sub_len = le16_to_cpu(symlink->SubstituteNameLength);
- sub_offset = le16_to_cpu(symlink->SubstituteNameOffset);
- *target_path = cifs_strndup_from_utf16(
- (char *)symlink->PathBuffer + sub_offset,
- sub_len, true, cifs_sb->local_nls);
- if (!(*target_path)) {
- kfree(utf16_path);
- return -ENOMEM;
- }
- convert_delimiter(*target_path, '/');
- cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
- kfree(utf16_path);
- return rc;
- }
- static void
- smb2_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
- unsigned int epoch, bool *purge_cache)
- {
- oplock &= 0xFF;
- if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
- return;
- if (oplock == SMB2_OPLOCK_LEVEL_BATCH) {
- cinode->oplock = CIFS_CACHE_RHW_FLG;
- cifs_dbg(FYI, "Batch Oplock granted on inode %p\n",
- &cinode->vfs_inode);
- } else if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE) {
- cinode->oplock = CIFS_CACHE_RW_FLG;
- cifs_dbg(FYI, "Exclusive Oplock granted on inode %p\n",
- &cinode->vfs_inode);
- } else if (oplock == SMB2_OPLOCK_LEVEL_II) {
- cinode->oplock = CIFS_CACHE_READ_FLG;
- cifs_dbg(FYI, "Level II Oplock granted on inode %p\n",
- &cinode->vfs_inode);
- } else
- cinode->oplock = 0;
- }
- static void
- smb21_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
- unsigned int epoch, bool *purge_cache)
- {
- char message[5] = {0};
- oplock &= 0xFF;
- if (oplock == SMB2_OPLOCK_LEVEL_NOCHANGE)
- return;
- cinode->oplock = 0;
- if (oplock & SMB2_LEASE_READ_CACHING_HE) {
- cinode->oplock |= CIFS_CACHE_READ_FLG;
- strcat(message, "R");
- }
- if (oplock & SMB2_LEASE_HANDLE_CACHING_HE) {
- cinode->oplock |= CIFS_CACHE_HANDLE_FLG;
- strcat(message, "H");
- }
- if (oplock & SMB2_LEASE_WRITE_CACHING_HE) {
- cinode->oplock |= CIFS_CACHE_WRITE_FLG;
- strcat(message, "W");
- }
- if (!cinode->oplock)
- strcat(message, "None");
- cifs_dbg(FYI, "%s Lease granted on inode %p\n", message,
- &cinode->vfs_inode);
- }
- static void
- smb3_set_oplock_level(struct cifsInodeInfo *cinode, __u32 oplock,
- unsigned int epoch, bool *purge_cache)
- {
- unsigned int old_oplock = cinode->oplock;
- smb21_set_oplock_level(cinode, oplock, epoch, purge_cache);
- if (purge_cache) {
- *purge_cache = false;
- if (old_oplock == CIFS_CACHE_READ_FLG) {
- if (cinode->oplock == CIFS_CACHE_READ_FLG &&
- (epoch - cinode->epoch > 0))
- *purge_cache = true;
- else if (cinode->oplock == CIFS_CACHE_RH_FLG &&
- (epoch - cinode->epoch > 1))
- *purge_cache = true;
- else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
- (epoch - cinode->epoch > 1))
- *purge_cache = true;
- else if (cinode->oplock == 0 &&
- (epoch - cinode->epoch > 0))
- *purge_cache = true;
- } else if (old_oplock == CIFS_CACHE_RH_FLG) {
- if (cinode->oplock == CIFS_CACHE_RH_FLG &&
- (epoch - cinode->epoch > 0))
- *purge_cache = true;
- else if (cinode->oplock == CIFS_CACHE_RHW_FLG &&
- (epoch - cinode->epoch > 1))
- *purge_cache = true;
- }
- cinode->epoch = epoch;
- }
- }
- static bool
- smb2_is_read_op(__u32 oplock)
- {
- return oplock == SMB2_OPLOCK_LEVEL_II;
- }
- static bool
- smb21_is_read_op(__u32 oplock)
- {
- return (oplock & SMB2_LEASE_READ_CACHING_HE) &&
- !(oplock & SMB2_LEASE_WRITE_CACHING_HE);
- }
- static __le32
- map_oplock_to_lease(u8 oplock)
- {
- if (oplock == SMB2_OPLOCK_LEVEL_EXCLUSIVE)
- return SMB2_LEASE_WRITE_CACHING | SMB2_LEASE_READ_CACHING;
- else if (oplock == SMB2_OPLOCK_LEVEL_II)
- return SMB2_LEASE_READ_CACHING;
- else if (oplock == SMB2_OPLOCK_LEVEL_BATCH)
- return SMB2_LEASE_HANDLE_CACHING | SMB2_LEASE_READ_CACHING |
- SMB2_LEASE_WRITE_CACHING;
- return 0;
- }
- static char *
- smb2_create_lease_buf(u8 *lease_key, u8 oplock)
- {
- struct create_lease *buf;
- buf = kzalloc(sizeof(struct create_lease), GFP_KERNEL);
- if (!buf)
- return NULL;
- buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
- buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
- buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
- buf->ccontext.DataOffset = cpu_to_le16(offsetof
- (struct create_lease, lcontext));
- buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context));
- buf->ccontext.NameOffset = cpu_to_le16(offsetof
- (struct create_lease, Name));
- buf->ccontext.NameLength = cpu_to_le16(4);
- buf->Name[0] = 'R';
- buf->Name[1] = 'q';
- buf->Name[2] = 'L';
- buf->Name[3] = 's';
- return (char *)buf;
- }
- static char *
- smb3_create_lease_buf(u8 *lease_key, u8 oplock)
- {
- struct create_lease_v2 *buf;
- buf = kzalloc(sizeof(struct create_lease_v2), GFP_KERNEL);
- if (!buf)
- return NULL;
- buf->lcontext.LeaseKeyLow = cpu_to_le64(*((u64 *)lease_key));
- buf->lcontext.LeaseKeyHigh = cpu_to_le64(*((u64 *)(lease_key + 8)));
- buf->lcontext.LeaseState = map_oplock_to_lease(oplock);
- buf->ccontext.DataOffset = cpu_to_le16(offsetof
- (struct create_lease_v2, lcontext));
- buf->ccontext.DataLength = cpu_to_le32(sizeof(struct lease_context_v2));
- buf->ccontext.NameOffset = cpu_to_le16(offsetof
- (struct create_lease_v2, Name));
- buf->ccontext.NameLength = cpu_to_le16(4);
- buf->Name[0] = 'R';
- buf->Name[1] = 'q';
- buf->Name[2] = 'L';
- buf->Name[3] = 's';
- return (char *)buf;
- }
- static __u8
- smb2_parse_lease_buf(void *buf, unsigned int *epoch)
- {
- struct create_lease *lc = (struct create_lease *)buf;
- *epoch = 0; /* not used */
- if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
- return SMB2_OPLOCK_LEVEL_NOCHANGE;
- return le32_to_cpu(lc->lcontext.LeaseState);
- }
- static __u8
- smb3_parse_lease_buf(void *buf, unsigned int *epoch)
- {
- struct create_lease_v2 *lc = (struct create_lease_v2 *)buf;
- *epoch = le16_to_cpu(lc->lcontext.Epoch);
- if (lc->lcontext.LeaseFlags & SMB2_LEASE_FLAG_BREAK_IN_PROGRESS)
- return SMB2_OPLOCK_LEVEL_NOCHANGE;
- return le32_to_cpu(lc->lcontext.LeaseState);
- }
- struct smb_version_operations smb20_operations = {
- .compare_fids = smb2_compare_fids,
- .setup_request = smb2_setup_request,
- .setup_async_request = smb2_setup_async_request,
- .check_receive = smb2_check_receive,
- .add_credits = smb2_add_credits,
- .set_credits = smb2_set_credits,
- .get_credits_field = smb2_get_credits_field,
- .get_credits = smb2_get_credits,
- .get_next_mid = smb2_get_next_mid,
- .read_data_offset = smb2_read_data_offset,
- .read_data_length = smb2_read_data_length,
- .map_error = map_smb2_to_linux_error,
- .find_mid = smb2_find_mid,
- .check_message = smb2_check_message,
- .dump_detail = smb2_dump_detail,
- .clear_stats = smb2_clear_stats,
- .print_stats = smb2_print_stats,
- .is_oplock_break = smb2_is_valid_oplock_break,
- .need_neg = smb2_need_neg,
- .negotiate = smb2_negotiate,
- .negotiate_wsize = smb2_negotiate_wsize,
- .negotiate_rsize = smb2_negotiate_rsize,
- .sess_setup = SMB2_sess_setup,
- .logoff = SMB2_logoff,
- .tree_connect = SMB2_tcon,
- .tree_disconnect = SMB2_tdis,
- .qfs_tcon = smb2_qfs_tcon,
- .is_path_accessible = smb2_is_path_accessible,
- .can_echo = smb2_can_echo,
- .echo = SMB2_echo,
- .query_path_info = smb2_query_path_info,
- .get_srv_inum = smb2_get_srv_inum,
- .query_file_info = smb2_query_file_info,
- .set_path_size = smb2_set_path_size,
- .set_file_size = smb2_set_file_size,
- .set_file_info = smb2_set_file_info,
- .set_compression = smb2_set_compression,
- .mkdir = smb2_mkdir,
- .mkdir_setinfo = smb2_mkdir_setinfo,
- .rmdir = smb2_rmdir,
- .unlink = smb2_unlink,
- .rename = smb2_rename_path,
- .create_hardlink = smb2_create_hardlink,
- .query_symlink = smb2_query_symlink,
- .open = smb2_open_file,
- .set_fid = smb2_set_fid,
- .close = smb2_close_file,
- .flush = smb2_flush_file,
- .async_readv = smb2_async_readv,
- .async_writev = smb2_async_writev,
- .sync_read = smb2_sync_read,
- .sync_write = smb2_sync_write,
- .query_dir_first = smb2_query_dir_first,
- .query_dir_next = smb2_query_dir_next,
- .close_dir = smb2_close_dir,
- .calc_smb_size = smb2_calc_size,
- .is_status_pending = smb2_is_status_pending,
- .oplock_response = smb2_oplock_response,
- .queryfs = smb2_queryfs,
- .mand_lock = smb2_mand_lock,
- .mand_unlock_range = smb2_unlock_range,
- .push_mand_locks = smb2_push_mandatory_locks,
- .get_lease_key = smb2_get_lease_key,
- .set_lease_key = smb2_set_lease_key,
- .new_lease_key = smb2_new_lease_key,
- .calc_signature = smb2_calc_signature,
- .is_read_op = smb2_is_read_op,
- .set_oplock_level = smb2_set_oplock_level,
- .create_lease_buf = smb2_create_lease_buf,
- .parse_lease_buf = smb2_parse_lease_buf,
- .clone_range = smb2_clone_range,
- };
- struct smb_version_operations smb21_operations = {
- .compare_fids = smb2_compare_fids,
- .setup_request = smb2_setup_request,
- .setup_async_request = smb2_setup_async_request,
- .check_receive = smb2_check_receive,
- .add_credits = smb2_add_credits,
- .set_credits = smb2_set_credits,
- .get_credits_field = smb2_get_credits_field,
- .get_credits = smb2_get_credits,
- .get_next_mid = smb2_get_next_mid,
- .read_data_offset = smb2_read_data_offset,
- .read_data_length = smb2_read_data_length,
- .map_error = map_smb2_to_linux_error,
- .find_mid = smb2_find_mid,
- .check_message = smb2_check_message,
- .dump_detail = smb2_dump_detail,
- .clear_stats = smb2_clear_stats,
- .print_stats = smb2_print_stats,
- .is_oplock_break = smb2_is_valid_oplock_break,
- .need_neg = smb2_need_neg,
- .negotiate = smb2_negotiate,
- .negotiate_wsize = smb2_negotiate_wsize,
- .negotiate_rsize = smb2_negotiate_rsize,
- .sess_setup = SMB2_sess_setup,
- .logoff = SMB2_logoff,
- .tree_connect = SMB2_tcon,
- .tree_disconnect = SMB2_tdis,
- .qfs_tcon = smb2_qfs_tcon,
- .is_path_accessible = smb2_is_path_accessible,
- .can_echo = smb2_can_echo,
- .echo = SMB2_echo,
- .query_path_info = smb2_query_path_info,
- .get_srv_inum = smb2_get_srv_inum,
- .query_file_info = smb2_query_file_info,
- .set_path_size = smb2_set_path_size,
- .set_file_size = smb2_set_file_size,
- .set_file_info = smb2_set_file_info,
- .set_compression = smb2_set_compression,
- .mkdir = smb2_mkdir,
- .mkdir_setinfo = smb2_mkdir_setinfo,
- .rmdir = smb2_rmdir,
- .unlink = smb2_unlink,
- .rename = smb2_rename_path,
- .create_hardlink = smb2_create_hardlink,
- .query_symlink = smb2_query_symlink,
- .open = smb2_open_file,
- .set_fid = smb2_set_fid,
- .close = smb2_close_file,
- .flush = smb2_flush_file,
- .async_readv = smb2_async_readv,
- .async_writev = smb2_async_writev,
- .sync_read = smb2_sync_read,
- .sync_write = smb2_sync_write,
- .query_dir_first = smb2_query_dir_first,
- .query_dir_next = smb2_query_dir_next,
- .close_dir = smb2_close_dir,
- .calc_smb_size = smb2_calc_size,
- .is_status_pending = smb2_is_status_pending,
- .oplock_response = smb2_oplock_response,
- .queryfs = smb2_queryfs,
- .mand_lock = smb2_mand_lock,
- .mand_unlock_range = smb2_unlock_range,
- .push_mand_locks = smb2_push_mandatory_locks,
- .get_lease_key = smb2_get_lease_key,
- .set_lease_key = smb2_set_lease_key,
- .new_lease_key = smb2_new_lease_key,
- .calc_signature = smb2_calc_signature,
- .is_read_op = smb21_is_read_op,
- .set_oplock_level = smb21_set_oplock_level,
- .create_lease_buf = smb2_create_lease_buf,
- .parse_lease_buf = smb2_parse_lease_buf,
- .clone_range = smb2_clone_range,
- };
- struct smb_version_operations smb30_operations = {
- .compare_fids = smb2_compare_fids,
- .setup_request = smb2_setup_request,
- .setup_async_request = smb2_setup_async_request,
- .check_receive = smb2_check_receive,
- .add_credits = smb2_add_credits,
- .set_credits = smb2_set_credits,
- .get_credits_field = smb2_get_credits_field,
- .get_credits = smb2_get_credits,
- .get_next_mid = smb2_get_next_mid,
- .read_data_offset = smb2_read_data_offset,
- .read_data_length = smb2_read_data_length,
- .map_error = map_smb2_to_linux_error,
- .find_mid = smb2_find_mid,
- .check_message = smb2_check_message,
- .dump_detail = smb2_dump_detail,
- .clear_stats = smb2_clear_stats,
- .print_stats = smb2_print_stats,
- .dump_share_caps = smb2_dump_share_caps,
- .is_oplock_break = smb2_is_valid_oplock_break,
- .need_neg = smb2_need_neg,
- .negotiate = smb2_negotiate,
- .negotiate_wsize = smb2_negotiate_wsize,
- .negotiate_rsize = smb2_negotiate_rsize,
- .sess_setup = SMB2_sess_setup,
- .logoff = SMB2_logoff,
- .tree_connect = SMB2_tcon,
- .tree_disconnect = SMB2_tdis,
- .qfs_tcon = smb3_qfs_tcon,
- .is_path_accessible = smb2_is_path_accessible,
- .can_echo = smb2_can_echo,
- .echo = SMB2_echo,
- .query_path_info = smb2_query_path_info,
- .get_srv_inum = smb2_get_srv_inum,
- .query_file_info = smb2_query_file_info,
- .set_path_size = smb2_set_path_size,
- .set_file_size = smb2_set_file_size,
- .set_file_info = smb2_set_file_info,
- .set_compression = smb2_set_compression,
- .mkdir = smb2_mkdir,
- .mkdir_setinfo = smb2_mkdir_setinfo,
- .rmdir = smb2_rmdir,
- .unlink = smb2_unlink,
- .rename = smb2_rename_path,
- .create_hardlink = smb2_create_hardlink,
- .query_symlink = smb2_query_symlink,
- .open = smb2_open_file,
- .set_fid = smb2_set_fid,
- .close = smb2_close_file,
- .flush = smb2_flush_file,
- .async_readv = smb2_async_readv,
- .async_writev = smb2_async_writev,
- .sync_read = smb2_sync_read,
- .sync_write = smb2_sync_write,
- .query_dir_first = smb2_query_dir_first,
- .query_dir_next = smb2_query_dir_next,
- .close_dir = smb2_close_dir,
- .calc_smb_size = smb2_calc_size,
- .is_status_pending = smb2_is_status_pending,
- .oplock_response = smb2_oplock_response,
- .queryfs = smb2_queryfs,
- .mand_lock = smb2_mand_lock,
- .mand_unlock_range = smb2_unlock_range,
- .push_mand_locks = smb2_push_mandatory_locks,
- .get_lease_key = smb2_get_lease_key,
- .set_lease_key = smb2_set_lease_key,
- .new_lease_key = smb2_new_lease_key,
- .generate_signingkey = generate_smb3signingkey,
- .calc_signature = smb3_calc_signature,
- .is_read_op = smb21_is_read_op,
- .set_oplock_level = smb3_set_oplock_level,
- .create_lease_buf = smb3_create_lease_buf,
- .parse_lease_buf = smb3_parse_lease_buf,
- .clone_range = smb2_clone_range,
- };
- struct smb_version_values smb20_values = {
- .version_string = SMB20_VERSION_STRING,
- .protocol_id = SMB20_PROT_ID,
- .req_capabilities = 0, /* MBZ */
- .large_lock_type = 0,
- .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
- .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
- .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
- .header_size = sizeof(struct smb2_hdr),
- .max_header_size = MAX_SMB2_HDR_SIZE,
- .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
- .lock_cmd = SMB2_LOCK,
- .cap_unix = 0,
- .cap_nt_find = SMB2_NT_FIND,
- .cap_large_files = SMB2_LARGE_FILES,
- .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .create_lease_size = sizeof(struct create_lease),
- };
- struct smb_version_values smb21_values = {
- .version_string = SMB21_VERSION_STRING,
- .protocol_id = SMB21_PROT_ID,
- .req_capabilities = 0, /* MBZ on negotiate req until SMB3 dialect */
- .large_lock_type = 0,
- .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
- .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
- .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
- .header_size = sizeof(struct smb2_hdr),
- .max_header_size = MAX_SMB2_HDR_SIZE,
- .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
- .lock_cmd = SMB2_LOCK,
- .cap_unix = 0,
- .cap_nt_find = SMB2_NT_FIND,
- .cap_large_files = SMB2_LARGE_FILES,
- .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .create_lease_size = sizeof(struct create_lease),
- };
- struct smb_version_values smb30_values = {
- .version_string = SMB30_VERSION_STRING,
- .protocol_id = SMB30_PROT_ID,
- .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,
- .large_lock_type = 0,
- .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
- .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
- .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
- .header_size = sizeof(struct smb2_hdr),
- .max_header_size = MAX_SMB2_HDR_SIZE,
- .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
- .lock_cmd = SMB2_LOCK,
- .cap_unix = 0,
- .cap_nt_find = SMB2_NT_FIND,
- .cap_large_files = SMB2_LARGE_FILES,
- .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .create_lease_size = sizeof(struct create_lease_v2),
- };
- struct smb_version_values smb302_values = {
- .version_string = SMB302_VERSION_STRING,
- .protocol_id = SMB302_PROT_ID,
- .req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU,
- .large_lock_type = 0,
- .exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
- .shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
- .unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
- .header_size = sizeof(struct smb2_hdr),
- .max_header_size = MAX_SMB2_HDR_SIZE,
- .read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
- .lock_cmd = SMB2_LOCK,
- .cap_unix = 0,
- .cap_nt_find = SMB2_NT_FIND,
- .cap_large_files = SMB2_LARGE_FILES,
- .signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
- .create_lease_size = sizeof(struct create_lease_v2),
- };
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