cifs: change SMB2_OP_RENAME and SMB2_OP_HARDLINK to use compounding
Get rid of smb2_open_op_close() as all operations are now migrated to smb2_compound_op(). Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Ronnie Sahlberg
Steve French
parent
3764cbd179
commit
bb435512ce
@ -33,7 +33,7 @@
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/*
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* Identifiers for functions that use the open, operation, close pattern
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* in smb2inode.c:smb2_open_op_close()
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* in smb2inode.c:smb2_compound_op()
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*/
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#define SMB2_OP_SET_DELETE 1
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#define SMB2_OP_SET_INFO 2
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@ -56,13 +56,16 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
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struct kvec rsp_iov[3];
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struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
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struct kvec qi_iov[1];
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struct kvec si_iov[2]; /* 1 + potential padding. */
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struct kvec si_iov[3]; /* 2 + potential padding. */
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struct kvec close_iov[1];
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struct smb2_query_info_rsp *qi_rsp = NULL;
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int flags = 0;
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__u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
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unsigned int size[1];
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void *data[1];
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unsigned int size[2];
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void *data[2];
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struct smb2_file_rename_info rename_info;
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struct smb2_file_link_info link_info;
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int len;
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if (smb3_encryption_required(tcon))
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flags |= CIFS_TRANSFORM_REQ;
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@ -152,6 +155,7 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
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rqst[num_rqst].rq_iov = si_iov;
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rqst[num_rqst].rq_nvec = 1;
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size[0] = sizeof(FILE_BASIC_INFO);
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data[0] = ptr;
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@ -162,6 +166,54 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
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smb2_set_next_command(server, &rqst[num_rqst]);
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smb2_set_related(&rqst[num_rqst++]);
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break;
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case SMB2_OP_RENAME:
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memset(&si_iov, 0, sizeof(si_iov));
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rqst[num_rqst].rq_iov = si_iov;
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rqst[num_rqst].rq_nvec = 2;
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len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
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rename_info.ReplaceIfExists = 1;
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rename_info.RootDirectory = 0;
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rename_info.FileNameLength = cpu_to_le32(len);
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size[0] = sizeof(struct smb2_file_rename_info);
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data[0] = &rename_info;
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size[1] = len + 2 /* null */;
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data[1] = (__le16 *)ptr;
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rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
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COMPOUND_FID, current->tgid,
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FILE_RENAME_INFORMATION,
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SMB2_O_INFO_FILE, 0, data, size);
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smb2_set_next_command(server, &rqst[num_rqst]);
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smb2_set_related(&rqst[num_rqst++]);
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break;
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case SMB2_OP_HARDLINK:
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memset(&si_iov, 0, sizeof(si_iov));
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rqst[num_rqst].rq_iov = si_iov;
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rqst[num_rqst].rq_nvec = 2;
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len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
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link_info.ReplaceIfExists = 0;
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link_info.RootDirectory = 0;
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link_info.FileNameLength = cpu_to_le32(len);
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size[0] = sizeof(struct smb2_file_link_info);
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data[0] = &link_info;
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size[1] = len + 2 /* null */;
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data[1] = (__le16 *)ptr;
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rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
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COMPOUND_FID, current->tgid,
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FILE_LINK_INFORMATION,
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SMB2_O_INFO_FILE, 0, data, size);
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smb2_set_next_command(server, &rqst[num_rqst]);
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smb2_set_related(&rqst[num_rqst++]);
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break;
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default:
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cifs_dbg(VFS, "Invalid command\n");
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rc = -EINVAL;
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@ -205,6 +257,8 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
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if (rqst[1].rq_iov)
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SMB2_close_free(&rqst[1]);
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break;
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case SMB2_OP_HARDLINK:
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case SMB2_OP_RENAME:
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case SMB2_OP_RMDIR:
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case SMB2_OP_SET_EOF:
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case SMB2_OP_SET_INFO:
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@ -220,72 +274,6 @@ smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
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return rc;
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}
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static int
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smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
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struct cifs_sb_info *cifs_sb, const char *full_path,
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__u32 desired_access, __u32 create_disposition,
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__u32 create_options, void *data, int command)
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{
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int rc, tmprc = 0;
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__le16 *utf16_path = NULL;
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__u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
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struct cifs_open_parms oparms;
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struct cifs_fid fid;
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bool use_cached_root_handle = false;
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if ((strcmp(full_path, "") == 0) && (create_options == 0) &&
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(desired_access == FILE_READ_ATTRIBUTES) &&
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(create_disposition == FILE_OPEN) &&
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(tcon->nohandlecache == false)) {
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rc = open_shroot(xid, tcon, &fid);
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if (rc == 0)
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use_cached_root_handle = true;
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}
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if (use_cached_root_handle == false) {
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utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
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if (!utf16_path)
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return -ENOMEM;
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oparms.tcon = tcon;
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oparms.desired_access = desired_access;
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oparms.disposition = create_disposition;
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oparms.create_options = create_options;
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oparms.fid = &fid;
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oparms.reconnect = false;
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rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL,
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NULL);
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if (rc) {
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kfree(utf16_path);
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return rc;
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}
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}
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switch (command) {
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case SMB2_OP_RENAME:
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tmprc = SMB2_rename(xid, tcon, fid.persistent_fid,
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fid.volatile_fid, (__le16 *)data);
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break;
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case SMB2_OP_HARDLINK:
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tmprc = SMB2_set_hardlink(xid, tcon, fid.persistent_fid,
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fid.volatile_fid, (__le16 *)data);
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break;
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default:
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cifs_dbg(VFS, "Invalid command\n");
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break;
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}
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if (use_cached_root_handle)
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close_shroot(&tcon->crfid);
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else
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rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
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if (tmprc)
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rc = tmprc;
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kfree(utf16_path);
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return rc;
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}
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void
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move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
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{
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@ -394,8 +382,8 @@ smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
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goto smb2_rename_path;
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}
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rc = smb2_open_op_close(xid, tcon, cifs_sb, from_name, access,
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FILE_OPEN, 0, smb2_to_name, command);
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rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
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FILE_OPEN, 0, smb2_to_name, command);
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smb2_rename_path:
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kfree(smb2_to_name);
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return rc;
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@ -3859,70 +3859,6 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
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return rc;
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}
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int
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SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
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{
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struct smb2_file_rename_info info;
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void **data;
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unsigned int size[2];
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int rc;
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int len = (2 * UniStrnlen((wchar_t *)target_file, PATH_MAX));
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data = kmalloc_array(2, sizeof(void *), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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info.ReplaceIfExists = 1; /* 1 = replace existing target with new */
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/* 0 = fail if target already exists */
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info.RootDirectory = 0; /* MBZ for network ops (why does spec say?) */
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info.FileNameLength = cpu_to_le32(len);
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data[0] = &info;
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size[0] = sizeof(struct smb2_file_rename_info);
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data[1] = target_file;
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size[1] = len + 2 /* null */;
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rc = send_set_info(xid, tcon, persistent_fid, volatile_fid,
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current->tgid, FILE_RENAME_INFORMATION, SMB2_O_INFO_FILE,
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0, 2, data, size);
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kfree(data);
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return rc;
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}
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int
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SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
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{
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struct smb2_file_link_info info;
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void **data;
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unsigned int size[2];
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int rc;
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int len = (2 * UniStrnlen((wchar_t *)target_file, PATH_MAX));
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data = kmalloc_array(2, sizeof(void *), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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info.ReplaceIfExists = 0; /* 1 = replace existing link with new */
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/* 0 = fail if link already exists */
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info.RootDirectory = 0; /* MBZ for network ops (why does spec say?) */
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info.FileNameLength = cpu_to_le32(len);
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data[0] = &info;
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size[0] = sizeof(struct smb2_file_link_info);
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data[1] = target_file;
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size[1] = len + 2 /* null */;
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rc = send_set_info(xid, tcon, persistent_fid, volatile_fid,
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current->tgid, FILE_LINK_INFORMATION, SMB2_O_INFO_FILE,
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0, 2, data, size);
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kfree(data);
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return rc;
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}
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int
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SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
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u64 volatile_fid, u32 pid, __le64 *eof)
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@ -182,12 +182,6 @@ extern int SMB2_echo(struct TCP_Server_Info *server);
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extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid, int index,
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struct cifs_search_info *srch_inf);
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extern int SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid,
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__le16 *target_file);
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extern int SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid,
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__le16 *target_file);
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extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon,
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u64 persistent_fid, u64 volatile_fid, u32 pid,
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__le64 *eof);
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