Commit ba8ca116 authored by Ronnie Sahlberg's avatar Ronnie Sahlberg Committed by Steve French
Browse files

cifs: create helpers for SMB2_set_info_init/free() 



so that we can use these later for compounded set-info calls.

Signed-off-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 47dd9597

fs/cifs/smb2inode.c

+3 −3
Original line number Diff line number Diff line
@@ -223,7 +223,7 @@ smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon, 
				     (__le64 *)data, false);

		break;

	case SMB2_OP_SET_INFO:

		tmprc = SMB2_set_info(xid, tcon, fid.persistent_fid,

		tmprc = SMB2_set_basic_info(xid, tcon, fid.persistent_fid,

					    fid.volatile_fid,

					    (FILE_BASIC_INFO *)data);

		break;

fs/cifs/smb2pdu.c

+57 −34
Original line number Diff line number Diff line
@@ -3754,45 +3754,22 @@ qdir_exit: 
	return rc;

}



static int

send_set_info(const unsigned int xid, struct cifs_tcon *tcon,

int

SMB2_set_info_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,

	       u64 persistent_fid, u64 volatile_fid, u32 pid, u8 info_class,

	       u8 info_type, u32 additional_info, unsigned int num,

	       u8 info_type, u32 additional_info,

		void **data, unsigned int *size)

{

	struct smb_rqst rqst;

	struct smb2_set_info_req *req;

	struct smb2_set_info_rsp *rsp = NULL;

	struct kvec *iov;

	struct kvec rsp_iov;

	int rc = 0;

	int resp_buftype;

	unsigned int i;

	struct cifs_ses *ses = tcon->ses;

	int flags = 0;

	unsigned int total_len;



	if (!ses || !(ses->server))

		return -EIO;



	if (!num)

		return -EINVAL;



	iov = kmalloc_array(num, sizeof(struct kvec), GFP_KERNEL);

	if (!iov)

		return -ENOMEM;

	struct kvec *iov = rqst->rq_iov;

	unsigned int i, total_len;

	int rc;



	rc = smb2_plain_req_init(SMB2_SET_INFO, tcon, (void **) &req, &total_len);

	if (rc) {

		kfree(iov);

	if (rc)

		return rc;

	}



	if (smb3_encryption_required(tcon))

		flags |= CIFS_TRANSFORM_REQ;



	req->sync_hdr.ProcessId = cpu_to_le32(pid);



	req->InfoType = info_type;

	req->FileInfoClass = info_class;

	req->PersistentFileId = persistent_fid;
@@ -3810,19 +3787,65 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon, 
	/* 1 for Buffer */

	iov[0].iov_len = total_len - 1;



	for (i = 1; i < num; i++) {

	for (i = 1; i < rqst->rq_nvec; i++) {

		le32_add_cpu(&req->BufferLength, size[i]);

		iov[i].iov_base = (char *)data[i];

		iov[i].iov_len = size[i];

	}



	return 0;

}



void

SMB2_set_info_free(struct smb_rqst *rqst)

{

	cifs_buf_release(rqst->rq_iov[0].iov_base); /* request */

}



static int

send_set_info(const unsigned int xid, struct cifs_tcon *tcon,

	       u64 persistent_fid, u64 volatile_fid, u32 pid, u8 info_class,

	       u8 info_type, u32 additional_info, unsigned int num,

		void **data, unsigned int *size)

{

	struct smb_rqst rqst;

	struct smb2_set_info_rsp *rsp = NULL;

	struct kvec *iov;

	struct kvec rsp_iov;

	int rc = 0;

	int resp_buftype;

	struct cifs_ses *ses = tcon->ses;

	int flags = 0;



	if (!ses || !(ses->server))

		return -EIO;



	if (!num)

		return -EINVAL;



	if (smb3_encryption_required(tcon))

		flags |= CIFS_TRANSFORM_REQ;



	iov = kmalloc_array(num, sizeof(struct kvec), GFP_KERNEL);

	if (!iov)

		return -ENOMEM;



	memset(&rqst, 0, sizeof(struct smb_rqst));

	rqst.rq_iov = iov;

	rqst.rq_nvec = num;



	rc = SMB2_set_info_init(tcon, &rqst, persistent_fid, volatile_fid, pid,

				info_class, info_type, additional_info,

				data, size);

	if (rc) {

		kfree(iov);

		return rc;

	}





	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,

			    &rsp_iov);

	cifs_buf_release(req);

	SMB2_set_info_free(&rqst);

	rsp = (struct smb2_set_info_rsp *)rsp_iov.iov_base;



	if (rc != 0) {
@@ -3940,7 +3963,7 @@ SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid, 
}



int

SMB2_set_info(const unsigned int xid, struct cifs_tcon *tcon,

SMB2_set_basic_info(const unsigned int xid, struct cifs_tcon *tcon,

		    u64 persistent_fid, u64 volatile_fid, FILE_BASIC_INFO *buf)

{

	unsigned int size;

fs/cifs/smb2proto.h

+8 −3
Original line number Diff line number Diff line
@@ -193,7 +193,12 @@ extern int SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon, 
extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon,

			u64 persistent_fid, u64 volatile_fid, u32 pid,

			__le64 *eof, bool is_fallocate);

extern int SMB2_set_info(const unsigned int xid, struct cifs_tcon *tcon,

extern int SMB2_set_info_init(struct cifs_tcon *tcon, struct smb_rqst *rqst,

			      u64 persistent_fid, u64 volatile_fid, u32 pid,

			      u8 info_class, u8 info_type, u32 additional_info,

			      void **data, unsigned int *size);

extern void SMB2_set_info_free(struct smb_rqst *rqst);

extern int SMB2_set_basic_info(const unsigned int xid, struct cifs_tcon *tcon,

			       u64 persistent_fid, u64 volatile_fid,

			       FILE_BASIC_INFO *buf);

extern int SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon,

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