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-rw-r--r--fs/btrfs/ctree.h2
-rw-r--r--fs/btrfs/dir-item.c48
-rw-r--r--fs/btrfs/extent-tree.c1
-rw-r--r--fs/btrfs/file.c19
-rw-r--r--fs/btrfs/tree-log.c79
-rw-r--r--fs/ksmbd/connection.c10
-rw-r--r--fs/ksmbd/glob.h2
-rw-r--r--fs/ksmbd/smb2misc.c98
-rw-r--r--fs/ksmbd/smb2ops.c5
-rw-r--r--fs/ksmbd/smb2pdu.c59
-rw-r--r--fs/ksmbd/smb2pdu.h1
-rw-r--r--fs/ksmbd/smb_common.c12
-rw-r--r--fs/ksmbd/smb_common.h4
13 files changed, 174 insertions, 166 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index dff2c8a3e059..c0cebcf745ce 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3030,7 +3030,7 @@ struct btrfs_dir_item *
btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 dir,
- u64 objectid, const char *name, int name_len,
+ u64 index, const char *name, int name_len,
int mod);
struct btrfs_dir_item *
btrfs_search_dir_index_item(struct btrfs_root *root,
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index f1274d5c3805..7721ce0c0604 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -190,9 +190,20 @@ static struct btrfs_dir_item *btrfs_lookup_match_dir(
}
/*
- * lookup a directory item based on name. 'dir' is the objectid
- * we're searching in, and 'mod' tells us if you plan on deleting the
- * item (use mod < 0) or changing the options (use mod > 0)
+ * Lookup for a directory item by name.
+ *
+ * @trans: The transaction handle to use. Can be NULL if @mod is 0.
+ * @root: The root of the target tree.
+ * @path: Path to use for the search.
+ * @dir: The inode number (objectid) of the directory.
+ * @name: The name associated to the directory entry we are looking for.
+ * @name_len: The length of the name.
+ * @mod: Used to indicate if the tree search is meant for a read only
+ * lookup, for a modification lookup or for a deletion lookup, so
+ * its value should be 0, 1 or -1, respectively.
+ *
+ * Returns: NULL if the dir item does not exists, an error pointer if an error
+ * happened, or a pointer to a dir item if a dir item exists for the given name.
*/
struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
@@ -273,27 +284,42 @@ out:
}
/*
- * lookup a directory item based on index. 'dir' is the objectid
- * we're searching in, and 'mod' tells us if you plan on deleting the
- * item (use mod < 0) or changing the options (use mod > 0)
+ * Lookup for a directory index item by name and index number.
*
- * The name is used to make sure the index really points to the name you were
- * looking for.
+ * @trans: The transaction handle to use. Can be NULL if @mod is 0.
+ * @root: The root of the target tree.
+ * @path: Path to use for the search.
+ * @dir: The inode number (objectid) of the directory.
+ * @index: The index number.
+ * @name: The name associated to the directory entry we are looking for.
+ * @name_len: The length of the name.
+ * @mod: Used to indicate if the tree search is meant for a read only
+ * lookup, for a modification lookup or for a deletion lookup, so
+ * its value should be 0, 1 or -1, respectively.
+ *
+ * Returns: NULL if the dir index item does not exists, an error pointer if an
+ * error happened, or a pointer to a dir item if the dir index item exists and
+ * matches the criteria (name and index number).
*/
struct btrfs_dir_item *
btrfs_lookup_dir_index_item(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_path *path, u64 dir,
- u64 objectid, const char *name, int name_len,
+ u64 index, const char *name, int name_len,
int mod)
{
+ struct btrfs_dir_item *di;
struct btrfs_key key;
key.objectid = dir;
key.type = BTRFS_DIR_INDEX_KEY;
- key.offset = objectid;
+ key.offset = index;
- return btrfs_lookup_match_dir(trans, root, path, &key, name, name_len, mod);
+ di = btrfs_lookup_match_dir(trans, root, path, &key, name, name_len, mod);
+ if (di == ERR_PTR(-ENOENT))
+ return NULL;
+
+ return di;
}
struct btrfs_dir_item *
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index fc3da7585fb7..0ab456cb4bf8 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4859,6 +4859,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
out_free_delayed:
btrfs_free_delayed_extent_op(extent_op);
out_free_buf:
+ btrfs_tree_unlock(buf);
free_extent_buffer(buf);
out_free_reserved:
btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 0);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 7ff577005d0f..a1762363f61f 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -734,8 +734,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans,
if (args->start >= inode->disk_i_size && !args->replace_extent)
modify_tree = 0;
- update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
- root == fs_info->tree_root);
+ update_refs = (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID);
while (1) {
recow = 0;
ret = btrfs_lookup_file_extent(trans, root, path, ino,
@@ -2704,14 +2703,16 @@ int btrfs_replace_file_extents(struct btrfs_inode *inode,
drop_args.bytes_found);
if (ret != -ENOSPC) {
/*
- * When cloning we want to avoid transaction aborts when
- * nothing was done and we are attempting to clone parts
- * of inline extents, in such cases -EOPNOTSUPP is
- * returned by __btrfs_drop_extents() without having
- * changed anything in the file.
+ * The only time we don't want to abort is if we are
+ * attempting to clone a partial inline extent, in which
+ * case we'll get EOPNOTSUPP. However if we aren't
+ * clone we need to abort no matter what, because if we
+ * got EOPNOTSUPP via prealloc then we messed up and
+ * need to abort.
*/
- if (extent_info && !extent_info->is_new_extent &&
- ret && ret != -EOPNOTSUPP)
+ if (ret &&
+ (ret != -EOPNOTSUPP ||
+ (extent_info && extent_info->is_new_extent)))
btrfs_abort_transaction(trans, ret);
break;
}
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f7efc26aa82a..b415c5ec03ea 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -939,9 +939,11 @@ out:
}
/*
- * helper function to see if a given name and sequence number found
- * in an inode back reference are already in a directory and correctly
- * point to this inode
+ * See if a given name and sequence number found in an inode back reference are
+ * already in a directory and correctly point to this inode.
+ *
+ * Returns: < 0 on error, 0 if the directory entry does not exists and 1 if it
+ * exists.
*/
static noinline int inode_in_dir(struct btrfs_root *root,
struct btrfs_path *path,
@@ -950,29 +952,34 @@ static noinline int inode_in_dir(struct btrfs_root *root,
{
struct btrfs_dir_item *di;
struct btrfs_key location;
- int match = 0;
+ int ret = 0;
di = btrfs_lookup_dir_index_item(NULL, root, path, dirid,
index, name, name_len, 0);
- if (di && !IS_ERR(di)) {
+ if (IS_ERR(di)) {
+ ret = PTR_ERR(di);
+ goto out;
+ } else if (di) {
btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
if (location.objectid != objectid)
goto out;
- } else
+ } else {
goto out;
- btrfs_release_path(path);
+ }
+ btrfs_release_path(path);
di = btrfs_lookup_dir_item(NULL, root, path, dirid, name, name_len, 0);
- if (di && !IS_ERR(di)) {
- btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
- if (location.objectid != objectid)
- goto out;
- } else
+ if (IS_ERR(di)) {
+ ret = PTR_ERR(di);
goto out;
- match = 1;
+ } else if (di) {
+ btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);
+ if (location.objectid == objectid)
+ ret = 1;
+ }
out:
btrfs_release_path(path);
- return match;
+ return ret;
}
/*
@@ -1182,7 +1189,9 @@ next:
/* look for a conflicting sequence number */
di = btrfs_lookup_dir_index_item(trans, root, path, btrfs_ino(dir),
ref_index, name, namelen, 0);
- if (di && !IS_ERR(di)) {
+ if (IS_ERR(di)) {
+ return PTR_ERR(di);
+ } else if (di) {
ret = drop_one_dir_item(trans, root, path, dir, di);
if (ret)
return ret;
@@ -1192,7 +1201,9 @@ next:
/* look for a conflicting name */
di = btrfs_lookup_dir_item(trans, root, path, btrfs_ino(dir),
name, namelen, 0);
- if (di && !IS_ERR(di)) {
+ if (IS_ERR(di)) {
+ return PTR_ERR(di);
+ } else if (di) {
ret = drop_one_dir_item(trans, root, path, dir, di);
if (ret)
return ret;
@@ -1517,10 +1528,12 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
if (ret)
goto out;
- /* if we already have a perfect match, we're done */
- if (!inode_in_dir(root, path, btrfs_ino(BTRFS_I(dir)),
- btrfs_ino(BTRFS_I(inode)), ref_index,
- name, namelen)) {
+ ret = inode_in_dir(root, path, btrfs_ino(BTRFS_I(dir)),
+ btrfs_ino(BTRFS_I(inode)), ref_index,
+ name, namelen);
+ if (ret < 0) {
+ goto out;
+ } else if (ret == 0) {
/*
* look for a conflicting back reference in the
* metadata. if we find one we have to unlink that name
@@ -1580,6 +1593,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
if (ret)
goto out;
}
+ /* Else, ret == 1, we already have a perfect match, we're done. */
ref_ptr = (unsigned long)(ref_ptr + ref_struct_size) + namelen;
kfree(name);
@@ -1936,8 +1950,8 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
struct btrfs_key log_key;
struct inode *dir;
u8 log_type;
- int exists;
- int ret = 0;
+ bool exists;
+ int ret;
bool update_size = (key->type == BTRFS_DIR_INDEX_KEY);
bool name_added = false;
@@ -1957,12 +1971,12 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
name_len);
btrfs_dir_item_key_to_cpu(eb, di, &log_key);
- exists = btrfs_lookup_inode(trans, root, path, &log_key, 0);
- if (exists == 0)
- exists = 1;
- else
- exists = 0;
+ ret = btrfs_lookup_inode(trans, root, path, &log_key, 0);
btrfs_release_path(path);
+ if (ret < 0)
+ goto out;
+ exists = (ret == 0);
+ ret = 0;
if (key->type == BTRFS_DIR_ITEM_KEY) {
dst_di = btrfs_lookup_dir_item(trans, root, path, key->objectid,
@@ -1977,7 +1991,11 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
ret = -EINVAL;
goto out;
}
- if (IS_ERR_OR_NULL(dst_di)) {
+
+ if (IS_ERR(dst_di)) {
+ ret = PTR_ERR(dst_di);
+ goto out;
+ } else if (!dst_di) {
/* we need a sequence number to insert, so we only
* do inserts for the BTRFS_DIR_INDEX_KEY types
*/
@@ -2281,7 +2299,7 @@ again:
dir_key->offset,
name, name_len, 0);
}
- if (!log_di || log_di == ERR_PTR(-ENOENT)) {
+ if (!log_di) {
btrfs_dir_item_key_to_cpu(eb, di, &location);
btrfs_release_path(path);
btrfs_release_path(log_path);
@@ -3540,8 +3558,7 @@ out_unlock:
if (err == -ENOSPC) {
btrfs_set_log_full_commit(trans);
err = 0;
- } else if (err < 0 && err != -ENOENT) {
- /* ENOENT can be returned if the entry hasn't been fsynced yet */
+ } else if (err < 0) {
btrfs_abort_transaction(trans, err);
}
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c
index af086d35398a..48b18b4ec117 100644
--- a/fs/ksmbd/connection.c
+++ b/fs/ksmbd/connection.c
@@ -296,10 +296,12 @@ int ksmbd_conn_handler_loop(void *p)
pdu_size = get_rfc1002_len(hdr_buf);
ksmbd_debug(CONN, "RFC1002 header %u bytes\n", pdu_size);
- /* make sure we have enough to get to SMB header end */
- if (!ksmbd_pdu_size_has_room(pdu_size)) {
- ksmbd_debug(CONN, "SMB request too short (%u bytes)\n",
- pdu_size);
+ /*
+ * Check if pdu size is valid (min : smb header size,
+ * max : 0x00FFFFFF).
+ */
+ if (pdu_size < __SMB2_HEADER_STRUCTURE_SIZE ||
+ pdu_size > MAX_STREAM_PROT_LEN) {
continue;
}
diff --git a/fs/ksmbd/glob.h b/fs/ksmbd/glob.h
index 49a5a3afa118..5b8f3e0ebdb3 100644
--- a/fs/ksmbd/glob.h
+++ b/fs/ksmbd/glob.h
@@ -12,7 +12,7 @@
#include "unicode.h"
#include "vfs_cache.h"
-#define KSMBD_VERSION "3.1.9"
+#define KSMBD_VERSION "3.4.2"
extern int ksmbd_debug_types;
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c
index 9aa46bb3e10d..9edd9c161b27 100644
--- a/fs/ksmbd/smb2misc.c
+++ b/fs/ksmbd/smb2misc.c
@@ -80,18 +80,21 @@ static const bool has_smb2_data_area[NUMBER_OF_SMB2_COMMANDS] = {
};
/*
- * Returns the pointer to the beginning of the data area. Length of the data
- * area and the offset to it (from the beginning of the smb are also returned.
+ * Set length of the data area and the offset to arguments.
+ * if they are invalid, return error.
*/
-static char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr)
+static int smb2_get_data_area_len(unsigned int *off, unsigned int *len,
+ struct smb2_hdr *hdr)
{
+ int ret = 0;
+
*off = 0;
*len = 0;
/* error reqeusts do not have data area */
if (hdr->Status && hdr->Status != STATUS_MORE_PROCESSING_REQUIRED &&
(((struct smb2_err_rsp *)hdr)->StructureSize) == SMB2_ERROR_STRUCTURE_SIZE2_LE)
- return NULL;
+ return ret;
/*
* Following commands have data areas so we have to get the location
@@ -165,69 +168,60 @@ static char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr)
case SMB2_IOCTL:
*off = le32_to_cpu(((struct smb2_ioctl_req *)hdr)->InputOffset);
*len = le32_to_cpu(((struct smb2_ioctl_req *)hdr)->InputCount);
-
break;
default:
ksmbd_debug(SMB, "no length check for command\n");
break;
}
- /*
- * Invalid length or offset probably means data area is invalid, but
- * we have little choice but to ignore the data area in this case.
- */
if (*off > 4096) {
- ksmbd_debug(SMB, "offset %d too large, data area ignored\n",
- *off);
- *len = 0;
- *off = 0;
- } else if (*off < 0) {
- ksmbd_debug(SMB,
- "negative offset %d to data invalid ignore data area\n",
- *off);
- *off = 0;
- *len = 0;
- } else if (*len < 0) {
- ksmbd_debug(SMB,
- "negative data length %d invalid, data area ignored\n",
- *len);
- *len = 0;
- } else if (*len > 128 * 1024) {
- ksmbd_debug(SMB, "data area larger than 128K: %d\n", *len);
- *len = 0;
+ ksmbd_debug(SMB, "offset %d too large\n", *off);
+ ret = -EINVAL;
+ } else if ((u64)*off + *len > MAX_STREAM_PROT_LEN) {
+ ksmbd_debug(SMB, "Request is larger than maximum stream protocol length(%u): %llu\n",
+ MAX_STREAM_PROT_LEN, (u64)*off + *len);
+ ret = -EINVAL;
}
- /* return pointer to beginning of data area, ie offset from SMB start */
- if ((*off != 0) && (*len != 0))
- return (char *)hdr + *off;
- else
- return NULL;
+ return ret;
}
/*
* Calculate the size of the SMB message based on the fixed header
* portion, the number of word parameters and the data portion of the message.
*/
-static unsigned int smb2_calc_size(void *buf)
+static int smb2_calc_size(void *buf, unsigned int *len)
{
struct smb2_pdu *pdu = (struct smb2_pdu *)buf;
struct smb2_hdr *hdr = &pdu->hdr;
- int offset; /* the offset from the beginning of SMB to data area */
- int data_length; /* the length of the variable length data area */
+ unsigned int offset; /* the offset from the beginning of SMB to data area */
+ unsigned int data_length; /* the length of the variable length data area */
+ int ret;
+
/* Structure Size has already been checked to make sure it is 64 */
- int len = le16_to_cpu(hdr->StructureSize);
+ *len = le16_to_cpu(hdr->StructureSize);
/*
* StructureSize2, ie length of fixed parameter area has already
* been checked to make sure it is the correct length.
*/
- len += le16_to_cpu(pdu->StructureSize2);
+ *len += le16_to_cpu(pdu->StructureSize2);
+ /*
+ * StructureSize2 of smb2_lock pdu is set to 48, indicating
+ * the size of smb2 lock request with single smb2_lock_element
+ * regardless of number of locks. Subtract single
+ * smb2_lock_element for correct buffer size check.
+ */
+ if (hdr->Command == SMB2_LOCK)
+ *len -= sizeof(struct smb2_lock_element);
if (has_smb2_data_area[le16_to_cpu(hdr->Command)] == false)
goto calc_size_exit;
- smb2_get_data_area_len(&offset, &data_length, hdr);
- ksmbd_debug(SMB, "SMB2 data length %d offset %d\n", data_length,
+ ret = smb2_get_data_area_len(&offset, &data_length, hdr);
+ if (ret)
+ return ret;
+ ksmbd_debug(SMB, "SMB2 data length %u offset %u\n", data_length,
offset);
if (data_length > 0) {
@@ -237,16 +231,19 @@ static unsigned int smb2_calc_size(void *buf)
* for some commands, typically those with odd StructureSize,
* so we must add one to the calculation.
*/
- if (offset + 1 < len)
+ if (offset + 1 < *len) {
ksmbd_debug(SMB,
- "data area offset %d overlaps SMB2 header %d\n",
- offset + 1, len);
- else
- len = offset + data_length;
+ "data area offset %d overlaps SMB2 header %u\n",
+ offset + 1, *len);
+ return -EINVAL;
+ }
+
+ *len = offset + data_length;
}
+
calc_size_exit:
- ksmbd_debug(SMB, "SMB2 len %d\n", len);
- return len;
+ ksmbd_debug(SMB, "SMB2 len %u\n", *len);
+ return 0;
}
static inline int smb2_query_info_req_len(struct smb2_query_info_req *h)
@@ -391,9 +388,11 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work)
return 1;
}
- clc_len = smb2_calc_size(hdr);
+ if (smb2_calc_size(hdr, &clc_len))
+ return 1;
+
if (len != clc_len) {
- /* server can return one byte more due to implied bcc[0] */
+ /* client can return one byte more due to implied bcc[0] */
if (clc_len == len + 1)
return 0;
@@ -418,9 +417,6 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work)
return 0;
}
- if (command == SMB2_LOCK_HE && len == 88)
- return 0;
-
ksmbd_debug(SMB,
"cli req too short, len %d not %d. cmd:%d mid:%llu\n",
len, clc_len, command,
diff --git a/fs/ksmbd/smb2ops.c b/fs/ksmbd/smb2ops.c
index 197473871aa4..b06456eb587b 100644
--- a/fs/ksmbd/smb2ops.c
+++ b/fs/ksmbd/smb2ops.c
@@ -187,11 +187,6 @@ static struct smb_version_cmds smb2_0_server_cmds[NUMBER_OF_SMB2_COMMANDS] = {
[SMB2_CHANGE_NOTIFY_HE] = { .proc = smb2_notify},
};
-int init_smb2_0_server(struct ksmbd_conn *conn)
-{
- return -EOPNOTSUPP;
-}
-
/**
* init_smb2_1_server() - initialize a smb server connection with smb2.1
* command dispatcher
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index dcf907738610..005aa93a49d6 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -236,9 +236,6 @@ int init_smb2_neg_rsp(struct ksmbd_work *work)
if (conn->need_neg == false)
return -EINVAL;
- if (!(conn->dialect >= SMB20_PROT_ID &&
- conn->dialect <= SMB311_PROT_ID))
- return -EINVAL;
rsp_hdr = work->response_buf;
@@ -1166,13 +1163,6 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
case SMB21_PROT_ID:
init_smb2_1_server(conn);
break;
- case SMB20_PROT_ID:
- rc = init_smb2_0_server(conn);
- if (rc) {
- rsp->hdr.Status = STATUS_NOT_SUPPORTED;
- goto err_out;
- }
- break;
case SMB2X_PROT_ID:
case BAD_PROT_ID:
default:
@@ -1191,11 +1181,9 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size);
rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size);
- if (conn->dialect > SMB20_PROT_ID) {
- memcpy(conn->ClientGUID, req->ClientGUID,
- SMB2_CLIENT_GUID_SIZE);
- conn->cli_sec_mode = le16_to_cpu(req->SecurityMode);
- }
+ memcpy(conn->ClientGUID, req->ClientGUID,
+ SMB2_CLIENT_GUID_SIZE);
+ conn->cli_sec_mode = le16_to_cpu(req->SecurityMode);
rsp->StructureSize = cpu_to_le16(65);
rsp->DialectRevision = cpu_to_le16(conn->dialect);
@@ -1537,11 +1525,9 @@ binding_session:
}
}
- if (conn->dialect > SMB20_PROT_ID) {
- if (!ksmbd_conn_lookup_dialect(conn)) {
- pr_err("fail to verify the dialect\n");
- return -ENOENT;
- }
+ if (!ksmbd_conn_lookup_dialect(conn)) {
+ pr_err("fail to verify the dialect\n");
+ return -ENOENT;
}
return 0;
}
@@ -1623,11 +1609,9 @@ static int krb5_authenticate(struct ksmbd_work *work)
}
}
- if (conn->dialect > SMB20_PROT_ID) {
- if (!ksmbd_conn_lookup_dialect(conn)) {
- pr_err("fail to verify the dialect\n");
- return -ENOENT;
- }
+ if (!ksmbd_conn_lookup_dialect(conn)) {
+ pr_err("fail to verify the dialect\n");
+ return -ENOENT;
}
return 0;
}
@@ -5499,7 +5483,6 @@ static int set_file_basic_info(struct ksmbd_file *fp,
struct ksmbd_share_config *share)
{
struct iattr attrs;
- struct timespec64 ctime;
struct file *filp;
struct inode *inode;
struct user_namespace *user_ns;
@@ -5521,13 +5504,11 @@ static int set_file_basic_info(struct ksmbd_file *fp,
attrs.ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET);
}
- if (file_info->ChangeTime) {
+ attrs.ia_valid |= ATTR_CTIME;
+ if (file_info->ChangeTime)
attrs.ia_ctime = ksmbd_NTtimeToUnix(file_info->ChangeTime);
- ctime = attrs.ia_ctime;
- attrs.ia_valid |= ATTR_CTIME;
- } else {
- ctime = inode->i_ctime;
- }
+ else
+ attrs.ia_ctime = inode->i_ctime;
if (file_info->LastWriteTime) {
attrs.ia_mtime = ksmbd_NTtimeToUnix(file_info->LastWriteTime);
@@ -5573,11 +5554,9 @@ static int set_file_basic_info(struct ksmbd_file *fp,
return -EACCES;
inode_lock(inode);
+ inode->i_ctime = attrs.ia_ctime;
+ attrs.ia_valid &= ~ATTR_CTIME;
rc = notify_change(user_ns, dentry, &attrs, NULL);
- if (!rc) {
- inode->i_ctime = ctime;
- mark_inode_dirty(inode);
- }
inode_unlock(inode);
}
return rc;
@@ -8411,20 +8390,18 @@ int smb3_decrypt_req(struct ksmbd_work *work)
struct smb2_hdr *hdr;
unsigned int pdu_length = get_rfc1002_len(buf);
struct kvec iov[2];
- unsigned int buf_data_size = pdu_length + 4 -
+ int buf_data_size = pdu_length + 4 -
sizeof(struct smb2_transform_hdr);
struct smb2_transform_hdr *tr_hdr = (struct smb2_transform_hdr *)buf;
int rc = 0;
- if (pdu_length + 4 <
- sizeof(struct smb2_transform_hdr) + sizeof(struct smb2_hdr)) {
+ if (buf_data_size < sizeof(struct smb2_hdr)) {
pr_err("Transform message is too small (%u)\n",
pdu_length);
return -ECONNABORTED;
}
- if (pdu_length + 4 <
- le32_to_cpu(tr_hdr->OriginalMessageSize) + sizeof(struct smb2_transform_hdr)) {
+ if (buf_data_size < le32_to_cpu(tr_hdr->OriginalMessageSize)) {
pr_err("Transform message is broken\n");
return -ECONNABORTED;
}
diff --git a/fs/ksmbd/smb2pdu.h b/fs/ksmbd/smb2pdu.h
index 261825d06391..a6dec5ec6a54 100644
--- a/fs/ksmbd/smb2pdu.h
+++ b/fs/ksmbd/smb2pdu.h
@@ -1637,7 +1637,6 @@ struct smb2_posix_info {
} __packed;
/* functions */
-int init_smb2_0_server(struct ksmbd_conn *conn);
void init_smb2_1_server(struct ksmbd_conn *conn);
void init_smb3_0_server(struct ksmbd_conn *conn);
void init_smb3_02_server(struct ksmbd_conn *conn);
diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c
index db8042a173d0..707490ab1f4c 100644
--- a/fs/ksmbd/smb_common.c
+++ b/fs/ksmbd/smb_common.c
@@ -21,7 +21,6 @@ static const char basechars[43] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_-!@#$%";
#define MAGIC_CHAR '~'
#define PERIOD '.'
#define mangle(V) ((char)(basechars[(V) % MANGLE_BASE]))
-#define KSMBD_MIN_SUPPORTED_HEADER_SIZE (sizeof(struct smb2_hdr))
struct smb_protocol {
int index;
@@ -89,7 +88,7 @@ unsigned int ksmbd_server_side_copy_max_total_size(void)
inline int ksmbd_min_protocol(void)
{
- return SMB2_PROT;
+ return SMB21_PROT;
}
inline int ksmbd_max_protocol(void)
@@ -294,11 +293,6 @@ int ksmbd_init_smb_server(struct ksmbd_work *work)
return 0;
}
-bool ksmbd_pdu_size_has_room(unsigned int pdu)
-{
- return (pdu >= KSMBD_MIN_SUPPORTED_HEADER_SIZE - 4);
-}
-
int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level,
struct ksmbd_file *dir,
struct ksmbd_dir_info *d_info,
@@ -433,7 +427,7 @@ int ksmbd_extract_shortname(struct ksmbd_conn *conn, const char *longname,
static int __smb2_negotiate(struct ksmbd_conn *conn)
{
- return (conn->dialect >= SMB20_PROT_ID &&
+ return (conn->dialect >= SMB21_PROT_ID &&
conn->dialect <= SMB311_PROT_ID);
}
@@ -463,7 +457,7 @@ int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command)
}
}
- if (command == SMB2_NEGOTIATE_HE) {
+ if (command == SMB2_NEGOTIATE_HE && __smb2_negotiate(conn)) {
ret = smb2_handle_negotiate(work);
init_smb2_neg_rsp(work);
return ret;
diff --git a/fs/ksmbd/smb_common.h b/fs/ksmbd/smb_common.h
index 994abede27e9..6e79e7577f6b 100644
--- a/fs/ksmbd/smb_common.h
+++ b/fs/ksmbd/smb_common.h
@@ -48,6 +48,8 @@
#define CIFS_DEFAULT_IOSIZE (64 * 1024)
#define MAX_CIFS_SMALL_BUFFER_SIZE 448 /* big enough for most */
+#define MAX_STREAM_PROT_LEN 0x00FFFFFF
+
/* Responses when opening a file. */
#define F_SUPERSEDED 0
#define F_OPENED 1
@@ -493,8 +495,6 @@ int ksmbd_lookup_dialect_by_id(__le16 *cli_dialects, __le16 dialects_count);
int ksmbd_init_smb_server(struct ksmbd_work *work);
-bool ksmbd_pdu_size_has_room(unsigned int pdu);
-
struct ksmbd_kstat;
int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work,
int info_level,
generated by cgit (git 2.34.1) at 2026-01-08 03:24:27 +0000