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path: root/fs/cifs/smb2inode.c
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Diffstat (limited to 'fs/cifs/smb2inode.c')
-rw-r--r--fs/cifs/smb2inode.c155
1 files changed, 119 insertions, 36 deletions
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index d8d9cdfa30b6..d2a3fb7e5c8d 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -51,7 +51,8 @@ static int
smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path,
__u32 desired_access, __u32 create_disposition,
- __u32 create_options, void *ptr, int command)
+ __u32 create_options, void *ptr, int command,
+ struct cifsFileInfo *cfile)
{
int rc;
__le16 *utf16_path = NULL;
@@ -83,10 +84,16 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
memset(rsp_iov, 0, sizeof(rsp_iov));
+ /* We already have a handle so we can skip the open */
+ if (cfile)
+ goto after_open;
+
/* Open */
utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
+ if (!utf16_path) {
+ rc = -ENOMEM;
+ goto finished;
+ }
oparms.tcon = tcon;
oparms.desired_access = desired_access;
@@ -106,7 +113,10 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst++]);
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ after_open:
+ num_rqst++;
+ rc = 0;
/* Operation */
switch (command) {
@@ -115,15 +125,31 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
rqst[num_rqst].rq_iov = qi_iov;
rqst[num_rqst].rq_nvec = 1;
- rc = SMB2_query_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, FILE_ALL_INFORMATION,
+ if (cfile)
+ rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ FILE_ALL_INFORMATION,
+ SMB2_O_INFO_FILE, 0,
+ sizeof(struct smb2_file_all_info) +
+ PATH_MAX * 2, 0, NULL);
+ else {
+ rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID,
+ FILE_ALL_INFORMATION,
SMB2_O_INFO_FILE, 0,
sizeof(struct smb2_file_all_info) +
PATH_MAX * 2, 0, NULL);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
+
if (rc)
goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
+ num_rqst++;
trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
full_path);
break;
@@ -182,14 +208,27 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
size[0] = sizeof(FILE_BASIC_INFO);
data[0] = ptr;
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
+ if (cfile)
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ else {
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID,
+ COMPOUND_FID, current->tgid,
+ FILE_BASIC_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
+
if (rc)
goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
+ num_rqst++;
trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
full_path);
break;
@@ -210,14 +249,25 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
size[1] = len + 2 /* null */;
data[1] = (__le16 *)ptr;
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_RENAME_INFORMATION,
+ if (cfile)
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid,
+ current->tgid, FILE_RENAME_INFORMATION,
+ SMB2_O_INFO_FILE, 0, data, size);
+ else {
+ rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
+ COMPOUND_FID, COMPOUND_FID,
+ current->tgid, FILE_RENAME_INFORMATION,
SMB2_O_INFO_FILE, 0, data, size);
+ if (!rc) {
+ smb2_set_next_command(tcon, &rqst[num_rqst]);
+ smb2_set_related(&rqst[num_rqst]);
+ }
+ }
if (rc)
goto finished;
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
+ num_rqst++;
trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
break;
case SMB2_OP_HARDLINK:
@@ -254,21 +304,43 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
if (rc)
goto finished;
+ /* We already have a handle so we can skip the close */
+ if (cfile)
+ goto after_close;
/* Close */
memset(&close_iov, 0, sizeof(close_iov));
rqst[num_rqst].rq_iov = close_iov;
rqst[num_rqst].rq_nvec = 1;
rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID,
COMPOUND_FID);
- smb2_set_related(&rqst[num_rqst++]);
+ smb2_set_related(&rqst[num_rqst]);
if (rc)
goto finished;
-
- rc = compound_send_recv(xid, ses, flags, num_rqst, rqst,
- resp_buftype, rsp_iov);
+ after_close:
+ num_rqst++;
+
+ if (cfile) {
+ cifsFileInfo_put(cfile);
+ cfile = NULL;
+ rc = compound_send_recv(xid, ses, flags, num_rqst - 2,
+ &rqst[1], &resp_buftype[1],
+ &rsp_iov[1]);
+ } else
+ rc = compound_send_recv(xid, ses, flags, num_rqst,
+ rqst, resp_buftype,
+ rsp_iov);
finished:
+ if (cfile)
+ cifsFileInfo_put(cfile);
+
SMB2_open_free(&rqst[0]);
+ if (rc == -EREMCHG) {
+ printk_once(KERN_WARNING "server share %s deleted\n",
+ tcon->treeName);
+ tcon->need_reconnect = true;
+ }
+
switch (command) {
case SMB2_OP_QUERY_INFO:
if (rc == 0) {
@@ -371,6 +443,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
__u32 create_options = 0;
struct cifs_fid fid;
bool no_cached_open = tcon->nohandlecache;
+ struct cifsFileInfo *cfile;
*adjust_tz = false;
*symlink = false;
@@ -402,9 +475,10 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
+ cifs_get_readable_path(tcon, full_path, &cfile);
rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
FILE_READ_ATTRIBUTES, FILE_OPEN, create_options,
- smb2_data, SMB2_OP_QUERY_INFO);
+ smb2_data, SMB2_OP_QUERY_INFO, cfile);
if (rc == -EOPNOTSUPP) {
*symlink = true;
create_options |= OPEN_REPARSE_POINT;
@@ -413,7 +487,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
FILE_READ_ATTRIBUTES, FILE_OPEN,
create_options, smb2_data,
- SMB2_OP_QUERY_INFO);
+ SMB2_OP_QUERY_INFO, NULL);
}
if (rc)
goto out;
@@ -430,7 +504,7 @@ smb2_mkdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
{
return smb2_compound_op(xid, tcon, cifs_sb, name,
FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, NULL, SMB2_OP_MKDIR);
+ CREATE_NOT_FILE, NULL, SMB2_OP_MKDIR, NULL);
}
void
@@ -440,6 +514,7 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name,
{
FILE_BASIC_INFO data;
struct cifsInodeInfo *cifs_i;
+ struct cifsFileInfo *cfile;
u32 dosattrs;
int tmprc;
@@ -447,9 +522,11 @@ smb2_mkdir_setinfo(struct inode *inode, const char *name,
cifs_i = CIFS_I(inode);
dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
data.Attributes = cpu_to_le32(dosattrs);
+ cifs_get_writable_path(tcon, name, &cfile);
tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, &data, SMB2_OP_SET_INFO);
+ CREATE_NOT_FILE, &data, SMB2_OP_SET_INFO,
+ cfile);
if (tmprc == 0)
cifs_i->cifsAttrs = dosattrs;
}
@@ -460,7 +537,7 @@ smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
{
return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
CREATE_NOT_FILE,
- NULL, SMB2_OP_RMDIR);
+ NULL, SMB2_OP_RMDIR, NULL);
}
int
@@ -469,13 +546,14 @@ smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
{
return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
- NULL, SMB2_OP_DELETE);
+ NULL, SMB2_OP_DELETE, NULL);
}
static int
smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb, __u32 access, int command)
+ struct cifs_sb_info *cifs_sb, __u32 access, int command,
+ struct cifsFileInfo *cfile)
{
__le16 *smb2_to_name = NULL;
int rc;
@@ -486,7 +564,7 @@ smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
goto smb2_rename_path;
}
rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
- FILE_OPEN, 0, smb2_to_name, command);
+ FILE_OPEN, 0, smb2_to_name, command, cfile);
smb2_rename_path:
kfree(smb2_to_name);
return rc;
@@ -497,8 +575,12 @@ smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
const char *from_name, const char *to_name,
struct cifs_sb_info *cifs_sb)
{
- return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- DELETE, SMB2_OP_RENAME);
+ struct cifsFileInfo *cfile;
+
+ cifs_get_writable_path(tcon, from_name, &cfile);
+
+ return smb2_set_path_attr(xid, tcon, from_name, to_name,
+ cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
}
int
@@ -507,7 +589,8 @@ smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb)
{
return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK);
+ FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK,
+ NULL);
}
int
@@ -519,7 +602,7 @@ smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
return smb2_compound_op(xid, tcon, cifs_sb, full_path,
FILE_WRITE_DATA, FILE_OPEN, 0, &eof,
- SMB2_OP_SET_EOF);
+ SMB2_OP_SET_EOF, NULL);
}
int
@@ -541,7 +624,7 @@ smb2_set_file_info(struct inode *inode, const char *full_path,
rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path,
FILE_WRITE_ATTRIBUTES, FILE_OPEN, 0, buf,
- SMB2_OP_SET_INFO);
+ SMB2_OP_SET_INFO, NULL);
cifs_put_tlink(tlink);
return rc;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-18 06:53:35 +0000