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-rw-r--r--fs/cifs/smb1ops.c726
1 files changed, 723 insertions, 3 deletions
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 6dec38f5522..47bc5a87f94 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -17,6 +17,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/pagemap.h>
+#include <linux/vfs.h>
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
@@ -51,6 +53,13 @@ send_nt_cancel(struct TCP_Server_Info *server, void *buf,
mutex_unlock(&server->srv_mutex);
return rc;
}
+
+ /*
+ * The response to this call was already factored into the sequence
+ * number when the call went out, so we must adjust it back downward
+ * after signing here.
+ */
+ --server->sequence_number;
rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
mutex_unlock(&server->srv_mutex);
@@ -63,7 +72,7 @@ send_nt_cancel(struct TCP_Server_Info *server, void *buf,
static bool
cifs_compare_fids(struct cifsFileInfo *ob1, struct cifsFileInfo *ob2)
{
- return ob1->netfid == ob2->netfid;
+ return ob1->fid.netfid == ob2->fid.netfid;
}
static unsigned int
@@ -101,7 +110,8 @@ cifs_find_mid(struct TCP_Server_Info *server, char *buffer)
}
static void
-cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add)
+cifs_add_credits(struct TCP_Server_Info *server, const unsigned int add,
+ const int optype)
{
spin_lock(&server->req_lock);
server->credits += add;
@@ -120,11 +130,17 @@ cifs_set_credits(struct TCP_Server_Info *server, const int val)
}
static int *
-cifs_get_credits_field(struct TCP_Server_Info *server)
+cifs_get_credits_field(struct TCP_Server_Info *server, const int optype)
{
return &server->credits;
}
+static unsigned int
+cifs_get_credits(struct mid_q_entry *mid)
+{
+ return 1;
+}
+
/*
* Find a free multiplex id (SMB mid). Otherwise there could be
* mid collisions which might cause problems, demultiplexing the
@@ -213,14 +229,668 @@ cifs_get_next_mid(struct TCP_Server_Info *server)
return mid;
}
+/*
+ return codes:
+ 0 not a transact2, or all data present
+ >0 transact2 with that much data missing
+ -EINVAL invalid transact2
+ */
+static int
+check2ndT2(char *buf)
+{
+ struct smb_hdr *pSMB = (struct smb_hdr *)buf;
+ struct smb_t2_rsp *pSMBt;
+ int remaining;
+ __u16 total_data_size, data_in_this_rsp;
+
+ if (pSMB->Command != SMB_COM_TRANSACTION2)
+ return 0;
+
+ /* check for plausible wct, bcc and t2 data and parm sizes */
+ /* check for parm and data offset going beyond end of smb */
+ if (pSMB->WordCount != 10) { /* coalesce_t2 depends on this */
+ cFYI(1, "invalid transact2 word count");
+ return -EINVAL;
+ }
+
+ pSMBt = (struct smb_t2_rsp *)pSMB;
+
+ total_data_size = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount);
+ data_in_this_rsp = get_unaligned_le16(&pSMBt->t2_rsp.DataCount);
+
+ if (total_data_size == data_in_this_rsp)
+ return 0;
+ else if (total_data_size < data_in_this_rsp) {
+ cFYI(1, "total data %d smaller than data in frame %d",
+ total_data_size, data_in_this_rsp);
+ return -EINVAL;
+ }
+
+ remaining = total_data_size - data_in_this_rsp;
+
+ cFYI(1, "missing %d bytes from transact2, check next response",
+ remaining);
+ if (total_data_size > CIFSMaxBufSize) {
+ cERROR(1, "TotalDataSize %d is over maximum buffer %d",
+ total_data_size, CIFSMaxBufSize);
+ return -EINVAL;
+ }
+ return remaining;
+}
+
+static int
+coalesce_t2(char *second_buf, struct smb_hdr *target_hdr)
+{
+ struct smb_t2_rsp *pSMBs = (struct smb_t2_rsp *)second_buf;
+ struct smb_t2_rsp *pSMBt = (struct smb_t2_rsp *)target_hdr;
+ char *data_area_of_tgt;
+ char *data_area_of_src;
+ int remaining;
+ unsigned int byte_count, total_in_tgt;
+ __u16 tgt_total_cnt, src_total_cnt, total_in_src;
+
+ src_total_cnt = get_unaligned_le16(&pSMBs->t2_rsp.TotalDataCount);
+ tgt_total_cnt = get_unaligned_le16(&pSMBt->t2_rsp.TotalDataCount);
+
+ if (tgt_total_cnt != src_total_cnt)
+ cFYI(1, "total data count of primary and secondary t2 differ "
+ "source=%hu target=%hu", src_total_cnt, tgt_total_cnt);
+
+ total_in_tgt = get_unaligned_le16(&pSMBt->t2_rsp.DataCount);
+
+ remaining = tgt_total_cnt - total_in_tgt;
+
+ if (remaining < 0) {
+ cFYI(1, "Server sent too much data. tgt_total_cnt=%hu "
+ "total_in_tgt=%hu", tgt_total_cnt, total_in_tgt);
+ return -EPROTO;
+ }
+
+ if (remaining == 0) {
+ /* nothing to do, ignore */
+ cFYI(1, "no more data remains");
+ return 0;
+ }
+
+ total_in_src = get_unaligned_le16(&pSMBs->t2_rsp.DataCount);
+ if (remaining < total_in_src)
+ cFYI(1, "transact2 2nd response contains too much data");
+
+ /* find end of first SMB data area */
+ data_area_of_tgt = (char *)&pSMBt->hdr.Protocol +
+ get_unaligned_le16(&pSMBt->t2_rsp.DataOffset);
+
+ /* validate target area */
+ data_area_of_src = (char *)&pSMBs->hdr.Protocol +
+ get_unaligned_le16(&pSMBs->t2_rsp.DataOffset);
+
+ data_area_of_tgt += total_in_tgt;
+
+ total_in_tgt += total_in_src;
+ /* is the result too big for the field? */
+ if (total_in_tgt > USHRT_MAX) {
+ cFYI(1, "coalesced DataCount too large (%u)", total_in_tgt);
+ return -EPROTO;
+ }
+ put_unaligned_le16(total_in_tgt, &pSMBt->t2_rsp.DataCount);
+
+ /* fix up the BCC */
+ byte_count = get_bcc(target_hdr);
+ byte_count += total_in_src;
+ /* is the result too big for the field? */
+ if (byte_count > USHRT_MAX) {
+ cFYI(1, "coalesced BCC too large (%u)", byte_count);
+ return -EPROTO;
+ }
+ put_bcc(byte_count, target_hdr);
+
+ byte_count = be32_to_cpu(target_hdr->smb_buf_length);
+ byte_count += total_in_src;
+ /* don't allow buffer to overflow */
+ if (byte_count > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
+ cFYI(1, "coalesced BCC exceeds buffer size (%u)", byte_count);
+ return -ENOBUFS;
+ }
+ target_hdr->smb_buf_length = cpu_to_be32(byte_count);
+
+ /* copy second buffer into end of first buffer */
+ memcpy(data_area_of_tgt, data_area_of_src, total_in_src);
+
+ if (remaining != total_in_src) {
+ /* more responses to go */
+ cFYI(1, "waiting for more secondary responses");
+ return 1;
+ }
+
+ /* we are done */
+ cFYI(1, "found the last secondary response");
+ return 0;
+}
+
+static bool
+cifs_check_trans2(struct mid_q_entry *mid, struct TCP_Server_Info *server,
+ char *buf, int malformed)
+{
+ if (malformed)
+ return false;
+ if (check2ndT2(buf) <= 0)
+ return false;
+ mid->multiRsp = true;
+ if (mid->resp_buf) {
+ /* merge response - fix up 1st*/
+ malformed = coalesce_t2(buf, mid->resp_buf);
+ if (malformed > 0)
+ return true;
+ /* All parts received or packet is malformed. */
+ mid->multiEnd = true;
+ dequeue_mid(mid, malformed);
+ return true;
+ }
+ if (!server->large_buf) {
+ /*FIXME: switch to already allocated largebuf?*/
+ cERROR(1, "1st trans2 resp needs bigbuf");
+ } else {
+ /* Have first buffer */
+ mid->resp_buf = buf;
+ mid->large_buf = true;
+ server->bigbuf = NULL;
+ }
+ return true;
+}
+
+static bool
+cifs_need_neg(struct TCP_Server_Info *server)
+{
+ return server->maxBuf == 0;
+}
+
+static int
+cifs_negotiate(const unsigned int xid, struct cifs_ses *ses)
+{
+ int rc;
+ rc = CIFSSMBNegotiate(xid, ses);
+ if (rc == -EAGAIN) {
+ /* retry only once on 1st time connection */
+ set_credits(ses->server, 1);
+ rc = CIFSSMBNegotiate(xid, ses);
+ if (rc == -EAGAIN)
+ rc = -EHOSTDOWN;
+ }
+ return rc;
+}
+
+static unsigned int
+cifs_negotiate_wsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
+{
+ __u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
+ struct TCP_Server_Info *server = tcon->ses->server;
+ unsigned int wsize;
+
+ /* start with specified wsize, or default */
+ if (volume_info->wsize)
+ wsize = volume_info->wsize;
+ else if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
+ wsize = CIFS_DEFAULT_IOSIZE;
+ else
+ wsize = CIFS_DEFAULT_NON_POSIX_WSIZE;
+
+ /* can server support 24-bit write sizes? (via UNIX extensions) */
+ if (!tcon->unix_ext || !(unix_cap & CIFS_UNIX_LARGE_WRITE_CAP))
+ wsize = min_t(unsigned int, wsize, CIFS_MAX_RFC1002_WSIZE);
+
+ /*
+ * no CAP_LARGE_WRITE_X or is signing enabled without CAP_UNIX set?
+ * Limit it to max buffer offered by the server, minus the size of the
+ * WRITEX header, not including the 4 byte RFC1001 length.
+ */
+ if (!(server->capabilities & CAP_LARGE_WRITE_X) ||
+ (!(server->capabilities & CAP_UNIX) &&
+ (server->sec_mode & (SECMODE_SIGN_ENABLED|SECMODE_SIGN_REQUIRED))))
+ wsize = min_t(unsigned int, wsize,
+ server->maxBuf - sizeof(WRITE_REQ) + 4);
+
+ /* hard limit of CIFS_MAX_WSIZE */
+ wsize = min_t(unsigned int, wsize, CIFS_MAX_WSIZE);
+
+ return wsize;
+}
+
+static unsigned int
+cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
+{
+ __u64 unix_cap = le64_to_cpu(tcon->fsUnixInfo.Capability);
+ struct TCP_Server_Info *server = tcon->ses->server;
+ unsigned int rsize, defsize;
+
+ /*
+ * Set default value...
+ *
+ * HACK alert! Ancient servers have very small buffers. Even though
+ * MS-CIFS indicates that servers are only limited by the client's
+ * bufsize for reads, testing against win98se shows that it throws
+ * INVALID_PARAMETER errors if you try to request too large a read.
+ * OS/2 just sends back short reads.
+ *
+ * If the server doesn't advertise CAP_LARGE_READ_X, then assume that
+ * it can't handle a read request larger than its MaxBufferSize either.
+ */
+ if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_READ_CAP))
+ defsize = CIFS_DEFAULT_IOSIZE;
+ else if (server->capabilities & CAP_LARGE_READ_X)
+ defsize = CIFS_DEFAULT_NON_POSIX_RSIZE;
+ else
+ defsize = server->maxBuf - sizeof(READ_RSP);
+
+ rsize = volume_info->rsize ? volume_info->rsize : defsize;
+
+ /*
+ * no CAP_LARGE_READ_X? Then MS-CIFS states that we must limit this to
+ * the client's MaxBufferSize.
+ */
+ if (!(server->capabilities & CAP_LARGE_READ_X))
+ rsize = min_t(unsigned int, CIFSMaxBufSize, rsize);
+
+ /* hard limit of CIFS_MAX_RSIZE */
+ rsize = min_t(unsigned int, rsize, CIFS_MAX_RSIZE);
+
+ return rsize;
+}
+
+static void
+cifs_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+ CIFSSMBQFSDeviceInfo(xid, tcon);
+ CIFSSMBQFSAttributeInfo(xid, tcon);
+}
+
+static int
+cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const char *full_path)
+{
+ int rc;
+ FILE_ALL_INFO *file_info;
+
+ file_info = kmalloc(sizeof(FILE_ALL_INFO), GFP_KERNEL);
+ if (file_info == NULL)
+ return -ENOMEM;
+
+ rc = CIFSSMBQPathInfo(xid, tcon, full_path, file_info,
+ 0 /* not legacy */, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc == -EOPNOTSUPP || rc == -EINVAL)
+ rc = SMBQueryInformation(xid, tcon, full_path, file_info,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ kfree(file_info);
+ return rc;
+}
+
+static int
+cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_sb_info *cifs_sb, const char *full_path,
+ FILE_ALL_INFO *data, bool *adjustTZ)
+{
+ int rc;
+
+ /* could do find first instead but this returns more info */
+ rc = CIFSSMBQPathInfo(xid, tcon, full_path, data, 0 /* not legacy */,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ /*
+ * BB optimize code so we do not make the above call when server claims
+ * no NT SMB support and the above call failed at least once - set flag
+ * in tcon or mount.
+ */
+ if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) {
+ rc = SMBQueryInformation(xid, tcon, full_path, data,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ *adjustTZ = true;
+ }
+ return rc;
+}
+
+static int
+cifs_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)
+{
+ /*
+ * We can not use the IndexNumber field by default from Windows or
+ * Samba (in ALL_INFO buf) but we can request it explicitly. The SNIA
+ * CIFS spec claims that this value is unique within the scope of a
+ * share, and the windows docs hint that it's actually unique
+ * per-machine.
+ *
+ * There may be higher info levels that work but are there Windows
+ * server or network appliances for which IndexNumber field is not
+ * guaranteed unique?
+ */
+ return CIFSGetSrvInodeNumber(xid, tcon, full_path, uniqueid,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+}
+
+static int
+cifs_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid, FILE_ALL_INFO *data)
+{
+ return CIFSSMBQFileInfo(xid, tcon, fid->netfid, data);
+}
+
+static void
+cifs_clear_stats(struct cifs_tcon *tcon)
+{
+#ifdef CONFIG_CIFS_STATS
+ atomic_set(&tcon->stats.cifs_stats.num_writes, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_reads, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_flushes, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_oplock_brks, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_opens, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_posixopens, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_posixmkdirs, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_closes, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_deletes, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_mkdirs, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_rmdirs, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_renames, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_t2renames, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_ffirst, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_fnext, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_fclose, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_hardlinks, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_symlinks, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_locks, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_acl_get, 0);
+ atomic_set(&tcon->stats.cifs_stats.num_acl_set, 0);
+#endif
+}
+
+static void
+cifs_print_stats(struct seq_file *m, struct cifs_tcon *tcon)
+{
+#ifdef CONFIG_CIFS_STATS
+ seq_printf(m, " Oplocks breaks: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_oplock_brks));
+ seq_printf(m, "\nReads: %d Bytes: %llu",
+ atomic_read(&tcon->stats.cifs_stats.num_reads),
+ (long long)(tcon->bytes_read));
+ seq_printf(m, "\nWrites: %d Bytes: %llu",
+ atomic_read(&tcon->stats.cifs_stats.num_writes),
+ (long long)(tcon->bytes_written));
+ seq_printf(m, "\nFlushes: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_flushes));
+ seq_printf(m, "\nLocks: %d HardLinks: %d Symlinks: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_locks),
+ atomic_read(&tcon->stats.cifs_stats.num_hardlinks),
+ atomic_read(&tcon->stats.cifs_stats.num_symlinks));
+ seq_printf(m, "\nOpens: %d Closes: %d Deletes: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_opens),
+ atomic_read(&tcon->stats.cifs_stats.num_closes),
+ atomic_read(&tcon->stats.cifs_stats.num_deletes));
+ seq_printf(m, "\nPosix Opens: %d Posix Mkdirs: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_posixopens),
+ atomic_read(&tcon->stats.cifs_stats.num_posixmkdirs));
+ seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
+ atomic_read(&tcon->stats.cifs_stats.num_mkdirs),
+ atomic_read(&tcon->stats.cifs_stats.num_rmdirs));
+ seq_printf(m, "\nRenames: %d T2 Renames %d",
+ atomic_read(&tcon->stats.cifs_stats.num_renames),
+ atomic_read(&tcon->stats.cifs_stats.num_t2renames));
+ seq_printf(m, "\nFindFirst: %d FNext %d FClose %d",
+ atomic_read(&tcon->stats.cifs_stats.num_ffirst),
+ atomic_read(&tcon->stats.cifs_stats.num_fnext),
+ atomic_read(&tcon->stats.cifs_stats.num_fclose));
+#endif
+}
+
+static void
+cifs_mkdir_setinfo(struct inode *inode, const char *full_path,
+ struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
+ const unsigned int xid)
+{
+ FILE_BASIC_INFO info;
+ struct cifsInodeInfo *cifsInode;
+ u32 dosattrs;
+ int rc;
+
+ memset(&info, 0, sizeof(info));
+ cifsInode = CIFS_I(inode);
+ dosattrs = cifsInode->cifsAttrs|ATTR_READONLY;
+ info.Attributes = cpu_to_le32(dosattrs);
+ rc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc == 0)
+ cifsInode->cifsAttrs = dosattrs;
+}
+
+static int
+cifs_open_file(const unsigned int xid, struct cifs_tcon *tcon, const char *path,
+ int disposition, int desired_access, int create_options,
+ struct cifs_fid *fid, __u32 *oplock, FILE_ALL_INFO *buf,
+ struct cifs_sb_info *cifs_sb)
+{
+ if (!(tcon->ses->capabilities & CAP_NT_SMBS))
+ return SMBLegacyOpen(xid, tcon, path, disposition,
+ desired_access, create_options,
+ &fid->netfid, oplock, buf,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags
+ & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ return CIFSSMBOpen(xid, tcon, path, disposition, desired_access,
+ create_options, &fid->netfid, oplock, buf,
+ cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+}
+
+static void
+cifs_set_fid(struct cifsFileInfo *cfile, struct cifs_fid *fid, __u32 oplock)
+{
+ struct cifsInodeInfo *cinode = CIFS_I(cfile->dentry->d_inode);
+ cfile->fid.netfid = fid->netfid;
+ cifs_set_oplock_level(cinode, oplock);
+ cinode->can_cache_brlcks = cinode->clientCanCacheAll;
+}
+
+static void
+cifs_close_file(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid)
+{
+ CIFSSMBClose(xid, tcon, fid->netfid);
+}
+
+static int
+cifs_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid)
+{
+ return CIFSSMBFlush(xid, tcon, fid->netfid);
+}
+
+static int
+cifs_sync_read(const unsigned int xid, struct cifsFileInfo *cfile,
+ struct cifs_io_parms *parms, unsigned int *bytes_read,
+ char **buf, int *buf_type)
+{
+ parms->netfid = cfile->fid.netfid;
+ return CIFSSMBRead(xid, parms, bytes_read, buf, buf_type);
+}
+
+static int
+cifs_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->netfid = cfile->fid.netfid;
+ return CIFSSMBWrite2(xid, parms, written, iov, nr_segs);
+}
+
+static int
+smb_set_file_info(struct inode *inode, const char *full_path,
+ FILE_BASIC_INFO *buf, const unsigned int xid)
+{
+ int oplock = 0;
+ int rc;
+ __u16 netfid;
+ __u32 netpid;
+ struct cifsFileInfo *open_file;
+ struct cifsInodeInfo *cinode = CIFS_I(inode);
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+ struct tcon_link *tlink = NULL;
+ struct cifs_tcon *tcon;
+
+ /* if the file is already open for write, just use that fileid */
+ open_file = find_writable_file(cinode, true);
+ if (open_file) {
+ netfid = open_file->fid.netfid;
+ netpid = open_file->pid;
+ tcon = tlink_tcon(open_file->tlink);
+ goto set_via_filehandle;
+ }
+
+ tlink = cifs_sb_tlink(cifs_sb);
+ if (IS_ERR(tlink)) {
+ rc = PTR_ERR(tlink);
+ tlink = NULL;
+ goto out;
+ }
+ tcon = tlink_tcon(tlink);
+
+ /*
+ * NT4 apparently returns success on this call, but it doesn't really
+ * work.
+ */
+ if (!(tcon->ses->flags & CIFS_SES_NT4)) {
+ rc = CIFSSMBSetPathInfo(xid, tcon, full_path, buf,
+ cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (rc == 0) {
+ cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
+ goto out;
+ } else if (rc != -EOPNOTSUPP && rc != -EINVAL)
+ goto out;
+ }
+
+ cFYI(1, "calling SetFileInfo since SetPathInfo for times not supported "
+ "by this server");
+ rc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
+ SYNCHRONIZE | FILE_WRITE_ATTRIBUTES, CREATE_NOT_DIR,
+ &netfid, &oplock, NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+ if (rc != 0) {
+ if (rc == -EIO)
+ rc = -EINVAL;
+ goto out;
+ }
+
+ netpid = current->tgid;
+
+set_via_filehandle:
+ rc = CIFSSMBSetFileInfo(xid, tcon, buf, netfid, netpid);
+ if (!rc)
+ cinode->cifsAttrs = le32_to_cpu(buf->Attributes);
+
+ if (open_file == NULL)
+ CIFSSMBClose(xid, tcon, netfid);
+ else
+ cifsFileInfo_put(open_file);
+out:
+ if (tlink != NULL)
+ cifs_put_tlink(tlink);
+ return rc;
+}
+
+static int
+cifs_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)
+{
+ return CIFSFindFirst(xid, tcon, path, cifs_sb,
+ &fid->netfid, search_flags, srch_inf, true);
+}
+
+static int
+cifs_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 CIFSFindNext(xid, tcon, fid->netfid, search_flags, srch_inf);
+}
+
+static int
+cifs_close_dir(const unsigned int xid, struct cifs_tcon *tcon,
+ struct cifs_fid *fid)
+{
+ return CIFSFindClose(xid, tcon, fid->netfid);
+}
+
+static int
+cifs_oplock_response(struct cifs_tcon *tcon, struct cifs_fid *fid,
+ struct cifsInodeInfo *cinode)
+{
+ return CIFSSMBLock(0, tcon, fid->netfid, current->tgid, 0, 0, 0, 0,
+ LOCKING_ANDX_OPLOCK_RELEASE, false,
+ cinode->clientCanCacheRead ? 1 : 0);
+}
+
+static int
+cifs_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
+ struct kstatfs *buf)
+{
+ int rc = -EOPNOTSUPP;
+
+ buf->f_type = CIFS_MAGIC_NUMBER;
+
+ /*
+ * We could add a second check for a QFS Unix capability bit
+ */
+ if ((tcon->ses->capabilities & CAP_UNIX) &&
+ (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))
+ rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);
+
+ /*
+ * Only need to call the old QFSInfo if failed on newer one,
+ * e.g. by OS/2.
+ **/
+ if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))
+ rc = CIFSSMBQFSInfo(xid, tcon, buf);
+
+ /*
+ * Some old Windows servers also do not support level 103, retry with
+ * older level one if old server failed the previous call or we
+ * bypassed it because we detected that this was an older LANMAN sess
+ */
+ if (rc)
+ rc = SMBOldQFSInfo(xid, tcon, buf);
+ return rc;
+}
+
+static int
+cifs_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
+ __u64 length, __u32 type, int lock, int unlock, bool wait)
+{
+ return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid,
+ current->tgid, length, offset, unlock, lock,
+ (__u8)type, wait, 0);
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
.setup_request = cifs_setup_request,
+ .setup_async_request = cifs_setup_async_request,
.check_receive = cifs_check_receive,
.add_credits = cifs_add_credits,
.set_credits = cifs_set_credits,
.get_credits_field = cifs_get_credits_field,
+ .get_credits = cifs_get_credits,
.get_next_mid = cifs_get_next_mid,
.read_data_offset = cifs_read_data_offset,
.read_data_length = cifs_read_data_length,
@@ -228,7 +898,52 @@ struct smb_version_operations smb1_operations = {
.find_mid = cifs_find_mid,
.check_message = checkSMB,
.dump_detail = cifs_dump_detail,
+ .clear_stats = cifs_clear_stats,
+ .print_stats = cifs_print_stats,
.is_oplock_break = is_valid_oplock_break,
+ .check_trans2 = cifs_check_trans2,
+ .need_neg = cifs_need_neg,
+ .negotiate = cifs_negotiate,
+ .negotiate_wsize = cifs_negotiate_wsize,
+ .negotiate_rsize = cifs_negotiate_rsize,
+ .sess_setup = CIFS_SessSetup,
+ .logoff = CIFSSMBLogoff,
+ .tree_connect = CIFSTCon,
+ .tree_disconnect = CIFSSMBTDis,
+ .get_dfs_refer = CIFSGetDFSRefer,
+ .qfs_tcon = cifs_qfs_tcon,
+ .is_path_accessible = cifs_is_path_accessible,
+ .query_path_info = cifs_query_path_info,
+ .query_file_info = cifs_query_file_info,
+ .get_srv_inum = cifs_get_srv_inum,
+ .set_path_size = CIFSSMBSetEOF,
+ .set_file_size = CIFSSMBSetFileSize,
+ .set_file_info = smb_set_file_info,
+ .echo = CIFSSMBEcho,
+ .mkdir = CIFSSMBMkDir,
+ .mkdir_setinfo = cifs_mkdir_setinfo,
+ .rmdir = CIFSSMBRmDir,
+ .unlink = CIFSSMBDelFile,
+ .rename_pending_delete = cifs_rename_pending_delete,
+ .rename = CIFSSMBRename,
+ .create_hardlink = CIFSCreateHardLink,
+ .open = cifs_open_file,
+ .set_fid = cifs_set_fid,
+ .close = cifs_close_file,
+ .flush = cifs_flush_file,
+ .async_readv = cifs_async_readv,
+ .async_writev = cifs_async_writev,
+ .sync_read = cifs_sync_read,
+ .sync_write = cifs_sync_write,
+ .query_dir_first = cifs_query_dir_first,
+ .query_dir_next = cifs_query_dir_next,
+ .close_dir = cifs_close_dir,
+ .calc_smb_size = smbCalcSize,
+ .oplock_response = cifs_oplock_response,
+ .queryfs = cifs_queryfs,
+ .mand_lock = cifs_mand_lock,
+ .mand_unlock_range = cifs_unlock_range,
+ .push_mand_locks = cifs_push_mandatory_locks,
};
struct smb_version_values smb1_values = {
@@ -240,4 +955,9 @@ struct smb_version_values smb1_values = {
.header_size = sizeof(struct smb_hdr),
.max_header_size = MAX_CIFS_HDR_SIZE,
.read_rsp_size = sizeof(READ_RSP),
+ .lock_cmd = cpu_to_le16(SMB_COM_LOCKING_ANDX),
+ .cap_unix = CAP_UNIX,
+ .cap_nt_find = CAP_NT_SMBS | CAP_NT_FIND,
+ .cap_large_files = CAP_LARGE_FILES,
+ .oplock_read = OPLOCK_READ,
};