diff options
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 1413 |
1 files changed, 1413 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c new file mode 100644 index 00000000000..787844bde38 --- /dev/null +++ b/fs/cifs/smb2ops.c @@ -0,0 +1,1413 @@ +/* + * 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); + /* set it to the maximum buffer size value we can send with 1 credit */ + wsize = min_t(unsigned int, wsize, SMB2_MAX_BUFFER_SIZE); + + 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); + /* set it to the maximum buffer size value we can send with 1 credit */ + rsize = min_t(unsigned int, rsize, SMB2_MAX_BUFFER_SIZE); + + 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; + struct copychunk_ioctl_rsp *retbuf = NULL; + struct cifs_tcon *tcon; + int chunks_copied = 0; + bool chunk_sizes_updated = false; + + 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) + goto cchunk_out; + + /* For now array only one chunk long, will make more flexible later */ + pcchunk->ChunkCount = __constant_cpu_to_le32(1); + pcchunk->Reserved = 0; + pcchunk->Reserved2 = 0; + + tcon = tlink_tcon(trgtfile->tlink); + + while (len > 0) { + pcchunk->SourceOffset = cpu_to_le64(src_off); + pcchunk->TargetOffset = cpu_to_le64(dest_off); + pcchunk->Length = + cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk)); + + /* Request server copy to target from src identified by key */ + rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid, + trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE, + true /* is_fsctl */, (char *)pcchunk, + sizeof(struct copychunk_ioctl), (char **)&retbuf, + &ret_data_len); + if (rc == 0) { + if (ret_data_len != + sizeof(struct copychunk_ioctl_rsp)) { + cifs_dbg(VFS, "invalid cchunk response size\n"); + rc = -EIO; + goto cchunk_out; + } + if (retbuf->TotalBytesWritten == 0) { + cifs_dbg(FYI, "no bytes copied\n"); + rc = -EIO; + goto cchunk_out; + } + /* + * Check if server claimed to write more than we asked + */ + if (le32_to_cpu(retbuf->TotalBytesWritten) > + le32_to_cpu(pcchunk->Length)) { + cifs_dbg(VFS, "invalid copy chunk response\n"); + rc = -EIO; + goto cchunk_out; + } + if (le32_to_cpu(retbuf->ChunksWritten) != 1) { + cifs_dbg(VFS, "invalid num chunks written\n"); + rc = -EIO; + goto cchunk_out; + } + chunks_copied++; + + src_off += le32_to_cpu(retbuf->TotalBytesWritten); + dest_off += le32_to_cpu(retbuf->TotalBytesWritten); + len -= le32_to_cpu(retbuf->TotalBytesWritten); + + cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %d\n", + le32_to_cpu(retbuf->ChunksWritten), + le32_to_cpu(retbuf->ChunkBytesWritten), + le32_to_cpu(retbuf->TotalBytesWritten)); + } else if (rc == -EINVAL) { + if (ret_data_len != sizeof(struct copychunk_ioctl_rsp)) + goto cchunk_out; + + cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n", + le32_to_cpu(retbuf->ChunksWritten), + le32_to_cpu(retbuf->ChunkBytesWritten), + le32_to_cpu(retbuf->TotalBytesWritten)); + + /* + * Check if this is the first request using these sizes, + * (ie check if copy succeed once with original sizes + * and check if the server gave us different sizes after + * we already updated max sizes on previous request). + * if not then why is the server returning an error now + */ + if ((chunks_copied != 0) || chunk_sizes_updated) + goto cchunk_out; + + /* Check that server is not asking us to grow size */ + if (le32_to_cpu(retbuf->ChunkBytesWritten) < + tcon->max_bytes_chunk) + tcon->max_bytes_chunk = + le32_to_cpu(retbuf->ChunkBytesWritten); + else + goto cchunk_out; /* server gave us bogus size */ + + /* No need to change MaxChunks since already set to 1 */ + chunk_sizes_updated = true; + } + } + +cchunk_out: + 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_downgrade_oplock(struct TCP_Server_Info *server, + struct cifsInodeInfo *cinode, bool set_level2) +{ + if (set_level2) + server->ops->set_oplock_level(cinode, SMB2_OPLOCK_LEVEL_II, + 0, NULL); + else + server->ops->set_oplock_level(cinode, 0, 0, NULL); +} + +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); + /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ + 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); + /* SMB2_CREATE_REQUEST_LEASE is "RqLs" */ + 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, + .downgrade_oplock = smb2_downgrade_oplock, + .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, + .downgrade_oplock = smb2_downgrade_oplock, + .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, + .downgrade_oplock = smb2_downgrade_oplock, + .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, + .validate_negotiate = smb3_validate_negotiate, +}; + +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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