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-rw-r--r--fs/cifs/cifs_unicode.c6
-rw-r--r--fs/cifs/cifs_unicode.h5
-rw-r--r--fs/cifs/cifsglob.h1
-rw-r--r--fs/cifs/cifssmb.c3
-rw-r--r--fs/cifs/file.c6
-rw-r--r--fs/cifs/smb1ops.c10
-rw-r--r--fs/cifs/smb2pdu.c23
7 files changed, 40 insertions, 14 deletions
diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
index 02b071bf3732..a0b3e7d1be48 100644
--- a/fs/cifs/cifs_unicode.c
+++ b/fs/cifs/cifs_unicode.c
@@ -83,6 +83,9 @@ convert_sfm_char(const __u16 src_char, char *target)
case SFM_COLON:
*target = ':';
break;
+ case SFM_DOUBLEQUOTE:
+ *target = '"';
+ break;
case SFM_ASTERISK:
*target = '*';
break;
@@ -418,6 +421,9 @@ static __le16 convert_to_sfm_char(char src_char, bool end_of_string)
case ':':
dest_char = cpu_to_le16(SFM_COLON);
break;
+ case '"':
+ dest_char = cpu_to_le16(SFM_DOUBLEQUOTE);
+ break;
case '*':
dest_char = cpu_to_le16(SFM_ASTERISK);
break;
diff --git a/fs/cifs/cifs_unicode.h b/fs/cifs/cifs_unicode.h
index 479bc0a941f3..07ade707fa60 100644
--- a/fs/cifs/cifs_unicode.h
+++ b/fs/cifs/cifs_unicode.h
@@ -57,6 +57,7 @@
* not conflict (although almost does) with the mapping above.
*/
+#define SFM_DOUBLEQUOTE ((__u16) 0xF020)
#define SFM_ASTERISK ((__u16) 0xF021)
#define SFM_QUESTION ((__u16) 0xF025)
#define SFM_COLON ((__u16) 0xF022)
@@ -64,8 +65,8 @@
#define SFM_LESSTHAN ((__u16) 0xF023)
#define SFM_PIPE ((__u16) 0xF027)
#define SFM_SLASH ((__u16) 0xF026)
-#define SFM_PERIOD ((__u16) 0xF028)
-#define SFM_SPACE ((__u16) 0xF029)
+#define SFM_SPACE ((__u16) 0xF028)
+#define SFM_PERIOD ((__u16) 0xF029)
/*
* Mapping mechanism to use when one of the seven reserved characters is
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 9d0e4fef8ee1..335f4ec51ecf 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -891,7 +891,6 @@ struct cifs_tcon {
bool need_reconnect:1; /* connection reset, tid now invalid */
#ifdef CONFIG_CIFS_SMB2
bool print:1; /* set if connection to printer share */
- bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */
__le32 capabilities;
__u32 share_flags;
__u32 maximal_access;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index f1a5067d5494..b3f401bb281a 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -716,6 +716,9 @@ CIFSSMBEcho(struct TCP_Server_Info *server)
if (rc)
return rc;
+ if (server->capabilities & CAP_UNICODE)
+ smb->hdr.Flags2 |= SMBFLG2_UNICODE;
+
/* set up echo request */
smb->hdr.Tid = 0xffff;
smb->hdr.WordCount = 1;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 3f50cee79df9..fcf986aa2abe 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2535,7 +2535,7 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
wdata->credits = credits;
if (!wdata->cfile->invalidHandle ||
- !cifs_reopen_file(wdata->cfile, false))
+ !(rc = cifs_reopen_file(wdata->cfile, false)))
rc = server->ops->async_writev(wdata,
cifs_uncached_writedata_release);
if (rc) {
@@ -2948,7 +2948,7 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file,
rdata->credits = credits;
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
error:
if (rc) {
@@ -3534,7 +3534,7 @@ static int cifs_readpages(struct file *file, struct address_space *mapping,
}
if (!rdata->cfile->invalidHandle ||
- !cifs_reopen_file(rdata->cfile, true))
+ !(rc = cifs_reopen_file(rdata->cfile, true)))
rc = server->ops->async_readv(rdata);
if (rc) {
add_credits_and_wake_if(server, rdata->credits, 0);
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index fc537c29044e..87b87e091e8e 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -1015,6 +1015,15 @@ cifs_dir_needs_close(struct cifsFileInfo *cfile)
return !cfile->srch_inf.endOfSearch && !cfile->invalidHandle;
}
+static bool
+cifs_can_echo(struct TCP_Server_Info *server)
+{
+ if (server->tcpStatus == CifsGood)
+ return true;
+
+ return false;
+}
+
struct smb_version_operations smb1_operations = {
.send_cancel = send_nt_cancel,
.compare_fids = cifs_compare_fids,
@@ -1049,6 +1058,7 @@ struct smb_version_operations smb1_operations = {
.get_dfs_refer = CIFSGetDFSRefer,
.qfs_tcon = cifs_qfs_tcon,
.is_path_accessible = cifs_is_path_accessible,
+ .can_echo = cifs_can_echo,
.query_path_info = cifs_query_path_info,
.query_file_info = cifs_query_file_info,
.get_srv_inum = cifs_get_srv_inum,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e3cf4a5fb35a..f8ae041d60fe 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -491,8 +491,12 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
}
if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
- cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
- return -EIO;
+ cifs_dbg(VFS, "invalid protocol negotiate response size: %d\n",
+ rsplen);
+
+ /* relax check since Mac returns max bufsize allowed on ioctl */
+ if (rsplen > CIFSMaxBufSize)
+ return -EIO;
}
/* check validate negotiate info response matches what we got earlier */
@@ -854,9 +858,6 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
else
return -EIO;
- if (tcon && tcon->bad_network_name)
- return -ENOENT;
-
unc_path = kmalloc(MAX_SHARENAME_LENGTH * 2, GFP_KERNEL);
if (unc_path == NULL)
return -ENOMEM;
@@ -868,6 +869,10 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
return -EINVAL;
}
+ /* SMB2 TREE_CONNECT request must be called with TreeId == 0 */
+ if (tcon)
+ tcon->tid = 0;
+
rc = small_smb2_init(SMB2_TREE_CONNECT, tcon, (void **) &req);
if (rc) {
kfree(unc_path);
@@ -946,8 +951,6 @@ tcon_exit:
tcon_error_exit:
if (rsp->hdr.Status == STATUS_BAD_NETWORK_NAME) {
cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
- if (tcon)
- tcon->bad_network_name = true;
}
goto tcon_exit;
}
@@ -1314,8 +1317,12 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
* than one credit. Windows typically sets this smaller, but for some
* ioctls it may be useful to allow server to send more. No point
* limiting what the server can send as long as fits in one credit
+ * Unfortunately - we can not handle more than CIFS_MAX_MSG_SIZE
+ * (by default, note that it can be overridden to make max larger)
+ * in responses (except for read responses which can be bigger.
+ * We may want to bump this limit up
*/
- req->MaxOutputResponse = cpu_to_le32(0xFF00); /* < 64K uses 1 credit */
+ req->MaxOutputResponse = cpu_to_le32(CIFSMaxBufSize);
if (is_fsctl)
req->Flags = cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 19:09:44 +0000