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path: root/fs/cifs/smb2ops.c
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Diffstat (limited to 'fs/cifs/smb2ops.c')
-rw-r--r--fs/cifs/smb2ops.c73
1 files changed, 42 insertions, 31 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 950d0ab2cc61..b15f5957d645 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -348,7 +348,7 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon, struct cifs_fid *pfid)
oparams.fid = pfid;
oparams.reconnect = false;
- rc = SMB2_open(xid, &oparams, &srch_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparams, &srch_path, &oplock, NULL, NULL, NULL);
if (rc == 0) {
memcpy(tcon->prfid, pfid, sizeof(struct cifs_fid));
tcon->valid_root_fid = true;
@@ -375,7 +375,8 @@ smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
oparms.reconnect = false;
if (no_cached_open)
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL,
+ NULL);
else
rc = open_shroot(xid, tcon, &fid);
@@ -413,7 +414,7 @@ smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL);
if (rc)
return;
@@ -449,7 +450,7 @@ smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
if (rc) {
kfree(utf16_path);
return rc;
@@ -598,7 +599,7 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
kfree(utf16_path);
if (rc) {
cifs_dbg(FYI, "open failed rc=%d\n", rc);
@@ -677,7 +678,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
kfree(utf16_path);
if (rc) {
cifs_dbg(FYI, "open failed rc=%d\n", rc);
@@ -1261,7 +1262,7 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
kfree(utf16_path);
if (rc) {
cifs_dbg(FYI, "open dir failed rc=%d\n", rc);
@@ -1361,7 +1362,7 @@ smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL, NULL);
if (rc)
return rc;
buf->f_type = SMB2_MAGIC_NUMBER;
@@ -1515,7 +1516,8 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_open_parms oparms;
struct cifs_fid fid;
struct kvec err_iov = {NULL, 0};
- struct smb2_err_rsp *err_buf;
+ struct smb2_err_rsp *err_buf = NULL;
+ int resp_buftype;
struct smb2_symlink_err_rsp *symlink;
unsigned int sub_len;
unsigned int sub_offset;
@@ -1535,18 +1537,18 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov);
-
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, &err_iov,
+ &resp_buftype);
if (!rc || !err_iov.iov_base) {
- kfree(utf16_path);
- return -ENOENT;
+ rc = -ENOENT;
+ goto querty_exit;
}
err_buf = err_iov.iov_base;
if (le32_to_cpu(err_buf->ByteCount) < sizeof(struct smb2_symlink_err_rsp) ||
err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE) {
- kfree(utf16_path);
- return -ENOENT;
+ rc = -ENOENT;
+ goto querty_exit;
}
/* open must fail on symlink - reset rc */
@@ -1558,25 +1560,28 @@ smb2_query_symlink(const unsigned int xid, struct cifs_tcon *tcon,
print_offset = le16_to_cpu(symlink->PrintNameOffset);
if (err_iov.iov_len < SMB2_SYMLINK_STRUCT_SIZE + sub_offset + sub_len) {
- kfree(utf16_path);
- return -ENOENT;
+ rc = -ENOENT;
+ goto querty_exit;
}
if (err_iov.iov_len <
SMB2_SYMLINK_STRUCT_SIZE + print_offset + print_len) {
- kfree(utf16_path);
- return -ENOENT;
+ rc = -ENOENT;
+ goto querty_exit;
}
*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;
+ rc = -ENOMEM;
+ goto querty_exit;
}
convert_delimiter(*target_path, '/');
cifs_dbg(FYI, "%s: target path: %s\n", __func__, *target_path);
+
+ querty_exit:
+ free_rsp_buf(resp_buftype, err_buf);
kfree(utf16_path);
return rc;
}
@@ -1649,7 +1654,7 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
kfree(utf16_path);
if (!rc) {
rc = SMB2_query_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
@@ -1712,7 +1717,7 @@ set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);
+ rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL, NULL);
kfree(utf16_path);
if (!rc) {
rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid,
@@ -2189,9 +2194,10 @@ init_sg(struct smb_rqst *rqst, u8 *sign)
smb2_sg_set_buf(&sg[i], rqst->rq_iov[i+1].iov_base,
rqst->rq_iov[i+1].iov_len);
for (j = 0; i < sg_len - 1; i++, j++) {
- unsigned int len = (j < rqst->rq_npages - 1) ? rqst->rq_pagesz
- : rqst->rq_tailsz;
- sg_set_page(&sg[i], rqst->rq_pages[j], len, 0);
+ unsigned int len, offset;
+
+ rqst_page_get_length(rqst, j, &len, &offset);
+ sg_set_page(&sg[i], rqst->rq_pages[j], len, offset);
}
smb2_sg_set_buf(&sg[sg_len - 1], sign, SMB2_SIGNATURE_SIZE);
return sg;
@@ -2229,7 +2235,7 @@ static int
crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc)
{
struct smb2_transform_hdr *tr_hdr =
- (struct smb2_transform_hdr *)rqst->rq_iov[0].iov_base;
+ (struct smb2_transform_hdr *)rqst->rq_iov[1].iov_base;
unsigned int assoc_data_len = sizeof(struct smb2_transform_hdr) - 20;
int rc = 0;
struct scatterlist *sg;
@@ -2338,6 +2344,7 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq,
return rc;
new_rq->rq_pages = pages;
+ new_rq->rq_offset = old_rq->rq_offset;
new_rq->rq_npages = old_rq->rq_npages;
new_rq->rq_pagesz = old_rq->rq_pagesz;
new_rq->rq_tailsz = old_rq->rq_tailsz;
@@ -2379,10 +2386,14 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, struct smb_rqst *new_rq,
/* copy pages form the old */
for (i = 0; i < npages; i++) {
- char *dst = kmap(new_rq->rq_pages[i]);
- char *src = kmap(old_rq->rq_pages[i]);
- unsigned int len = (i < npages - 1) ? new_rq->rq_pagesz :
- new_rq->rq_tailsz;
+ char *dst, *src;
+ unsigned int offset, len;
+
+ rqst_page_get_length(new_rq, i, &len, &offset);
+
+ dst = (char *) kmap(new_rq->rq_pages[i]) + offset;
+ src = (char *) kmap(old_rq->rq_pages[i]) + offset;
+
memcpy(dst, src, len);
kunmap(new_rq->rq_pages[i]);
kunmap(old_rq->rq_pages[i]);
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-04 19:15:11 +0000