C++ smb_rq_bstart函数代码示例

int
smbfs_smb_close(struct smb_share *ssp, u_int16_t fid, struct timespec *mtime,
	struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	u_long xtime;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_CLOSE, scred, &rqp);
	if (error)
		return error;
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_mem(mbp, (void *)&fid, sizeof(fid), MB_MSYSTEM);
	if (mtime) {
		smb_time_local2server(mtime, SSTOVC(ssp)->vc_sopt.sv_tz, &xtime);
	} else
		xtime = 0;
	mb_put_uint32le(mbp, xtime);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	smb_rq_bend(rqp);
	error = smb_rq_simple(rqp);
	smb_rq_done(rqp);
	return error;
}

int
smbfs_smb_delete(struct smbnode *np, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = np->n_mount->sm_share;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_DELETE, scred, &rqp);
	if (error)
		return (error);
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, SMB_FA_SYSTEM | SMB_FA_HIDDEN);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
	if (!error) {
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
	}
	smb_rq_done(rqp);
	return error;
}

int
smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred, int timo)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_ECHO, scred, &rqp);
	if (error)
		return (error);
	mbp = &rqp->sr_rq;
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, 1); /* echo count */
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint32le(mbp, atomic_inc_32_nv(&smbechoes));
	smb_rq_bend(rqp);
	/*
	 * Note: the IOD calls this, so
	 * this request must not wait for
	 * connection state changes, etc.
	 */
	rqp->sr_flags |= SMBR_NORECONNECT;
	error = smb_rq_simple_timed(rqp, timo);
	SMBSDEBUG("%d\n", error);
	smb_rq_done(rqp);
	return (error);
}

int
smbfs_smb_rename(struct smbnode *src, struct smbnode *tdnp,
	const char *tname, int tnmlen, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = src->n_mount->sm_share;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_RENAME, scred, &rqp);
	if (error)
		return (error);
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, SMB_FA_SYSTEM | SMB_FA_HIDDEN);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	do {
		error = smbfs_fullpath(mbp, SSTOVC(ssp), src, NULL, 0);
		if (error)
			break;
		mb_put_uint8(mbp, SMB_DT_ASCII);
		error = smbfs_fullpath(mbp, SSTOVC(ssp), tdnp, tname, tnmlen);
		if (error)
			break;
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
	} while(0);
	smb_rq_done(rqp);
	return error;
}

int
smbfs_smb_move(struct smbnode *src, struct smbnode *tdnp,
	const char *tname, int tnmlen, u_int16_t flags, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = src->n_mount->sm_share;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_MOVE, scred, &rqp);
	if (error)
		return (error);
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, SMB_TID_UNKNOWN);
	mb_put_uint16le(mbp, 0x20);	/* delete target file */
	mb_put_uint16le(mbp, flags);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	do {
		error = smbfs_fullpath(mbp, SSTOVC(ssp), src, NULL, 0);
		if (error)
			break;
		mb_put_uint8(mbp, SMB_DT_ASCII);
		error = smbfs_fullpath(mbp, SSTOVC(ssp), tdnp, tname, tnmlen);
		if (error)
			break;
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
	} while(0);
	smb_rq_done(rqp);
	return error;
}

int
smbfs_smb_mkdir(struct smbnode *dnp, const char *name, int len,
	struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = dnp->n_mount->sm_share;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_CREATE_DIRECTORY, scred,
	    &rqp);
	if (error)
		return (error);
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	error = smbfs_fullpath(mbp, SSTOVC(ssp), dnp, name, len);
	if (!error) {
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
	}
	smb_rq_done(rqp);
	return error;
}

int
smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	int error;

	if (vcp->vc_smbuid == SMB_UID_UNKNOWN)
		return 0;

	if (smb_smb_nomux(vcp, scred, __func__) != 0)
		return EINVAL;

	error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_LOGOFF_ANDX, scred, &rqp);
	if (error)
		return error;
	mbp = &rqp->sr_rq;
	smb_rq_wstart(rqp);
	mb_put_uint8(mbp, 0xff);
	mb_put_uint8(mbp, 0);
	mb_put_uint16le(mbp, 0);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	smb_rq_bend(rqp);
	error = smb_rq_simple(rqp);
	SMBSDEBUG("%d\n", error);
	smb_rq_done(rqp);
	return error;
}

int
smbfs_smb_setfsize(struct smbnode *np, u_quad_t newsize,
		   struct smb_cred *scred)
{
	struct smb_share *ssp = np->n_mount->sm_share;
	struct smb_rq *rqp;
	struct mbchain *mbp;
	int error;

	if (newsize >= (1LL << 32)) {
		if (!(SMB_CAPS(SSTOVC(ssp)) & SMB_CAP_LARGE_FILES))
			return EFBIG;
		return smbfs_smb_seteof(np, (int64_t)newsize, scred);
	}

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
	if (error)
		return error;
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_mem(mbp, (void *)&np->n_fid, 2, MB_MSYSTEM);
	mb_put_uint16le(mbp, 0);
	mb_put_uint32le(mbp, newsize);
	mb_put_uint16le(mbp, 0);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_DATA);
	mb_put_uint16le(mbp, 0);
	smb_rq_bend(rqp);
	error = smb_rq_simple(rqp);
	smb_rq_done(rqp);
	return error;
}

static int
smb_smb_write(struct smb_share *ssp, uint16_t fid, uint32_t *lenp,
	uio_t *uiop, smb_cred_t *scred, int timo)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	struct mdchain *mdp;
	int error;
	uint32_t off32;
	uint16_t cnt, rcnt, todo;
	uint8_t wc;

	ASSERT(uiop->uio_loffset <= UINT32_MAX);
	off32 = (uint32_t)uiop->uio_loffset;
	ASSERT(*lenp <= UINT16_MAX);
	cnt = (uint16_t)*lenp;
	/* This next is an "estimate" of planned writes. */
	todo = (uint16_t)min(uiop->uio_resid, UINT16_MAX);

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
	if (error)
		return (error);
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, fid);
	mb_put_uint16le(mbp, cnt);
	mb_put_uint32le(mbp, off32);
	mb_put_uint16le(mbp, todo);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_DATA);
	mb_put_uint16le(mbp, cnt);

	error = mb_put_uio(mbp, uiop, *lenp);
	if (error)
		goto out;
	smb_rq_bend(rqp);
	if (timo == 0)
		timo = smb_timo_write;
	error = smb_rq_simple_timed(rqp, timo);
	if (error)
		goto out;
	smb_rq_getreply(rqp, &mdp);
	error = md_get_uint8(mdp, &wc);
	if (error)
		goto out;
	if (wc != 1) {
		error = EBADRPC;
		goto out;
	}
	error = md_get_uint16le(mdp, &rcnt);
	if (error)
		goto out;
	*lenp = rcnt;

out:
	smb_rq_done(rqp);
	return (error);
}

static __inline int
smb_smb_write(struct smb_share *ssp, u_int16_t fid, int *len, int *rresid,
	struct uio *uio, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	struct mdchain *mdp;
	u_int16_t resid;
	u_int8_t wc;
	int error, blksz;

	/* write data must be real */
	KKASSERT(uio->uio_segflg != UIO_NOCOPY);

	blksz = SSTOVC(ssp)->vc_txmax - SMB_HDRLEN - 16;
	if (blksz > 0xffff)
		blksz = 0xffff;

	resid = *len = min(blksz, *len);

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_WRITE, scred, &rqp);
	if (error)
		return error;
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_mem(mbp, (caddr_t)&fid, sizeof(fid), MB_MSYSTEM);
	mb_put_uint16le(mbp, resid);
	mb_put_uint32le(mbp, uio->uio_offset);
	mb_put_uint16le(mbp, (unsigned short)szmin(uio->uio_resid, 0xffff));
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_DATA);
	mb_put_uint16le(mbp, resid);
	do {
		error = mb_put_uio(mbp, uio, resid);
		if (error)
			break;
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
		if (error)
			break;
		smb_rq_getreply(rqp, &mdp);
		md_get_uint8(mdp, &wc);
		if (wc != 1) {
			error = EBADRPC;
			break;
		}
		md_get_uint16le(mdp, &resid);
		*rresid = resid;
	} while(0);
	smb_rq_done(rqp);
	return error;
}

/*
 * Setup a request for NT DIRECTORY CHANGE NOTIFY.
 */
int
smbfs_smb_nt_dirnotify_setup(struct smbnode *dnp, struct smb_rq **rqpp, struct smb_cred *scred, void (*notifyhook)(void *), void *notifyarg)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = dnp->n_mount->sm_share;
	struct mbchain *mbp;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_NT_TRANSACT, scred, &rqp);
	if (error)
		return error;
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint8(mbp, 0xff);	/* Max setup words to return */
	mb_put_uint16le(mbp, 0);	/* Flags (according to Samba) */
	mb_put_uint32le(mbp, 0);	/* Total parameter bytes being sent*/
	mb_put_uint32le(mbp, 0);	/* Total data bytes being sent */
	mb_put_uint32le(mbp, 10*1024); /* Max parameter bytes to return */
	mb_put_uint32le(mbp, 0);	/* Max data bytes to return */
	mb_put_uint32le(mbp, 0);	/* Parameter bytes sent this buffer */
	mb_put_uint32le(mbp, 0);	/* Offset (from h. start) to Param */
	mb_put_uint32le(mbp, 0);	/* Data bytes sent this buffer */
	mb_put_uint32le(mbp, 0);	/* Offset (from h. start) to Data */
	mb_put_uint8(mbp, 4);		/* Count of setup words */
	mb_put_uint16le(mbp, SMB_NTTRANS_NOTIFY_CHANGE); /* Trans func code */

	/* NT TRANSACT NOTIFY CHANGE: Request Change Notification */
	mb_put_uint32le(mbp,
		FILE_NOTIFY_CHANGE_NAME|FILE_NOTIFY_CHANGE_ATTRIBUTES|
		FILE_NOTIFY_CHANGE_SIZE|FILE_NOTIFY_CHANGE_LAST_WRITE|
		FILE_NOTIFY_CHANGE_CREATION);	/* CompletionFilter */
	mb_put_mem(mbp, (void *)&dnp->n_fid, 2, MB_MSYSTEM);	/* FID */
	mb_put_uint8(mbp, 0);		/* WatchTree - Watch all subdirs too */
	mb_put_uint8(mbp, 0);		/* Reserved - must be zero */
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	smb_rq_bend(rqp);

	/* No timeout */
	rqp->sr_timo = -1;
	smb_rq_setcallback(rqp, notifyhook, notifyarg);

	error = smb_rq_enqueue(rqp);
	if (!error)
		*rqpp = rqp;
	else
		smb_rq_done(rqp);

	return (error);
}

int
smbfs_smb_create(struct smbnode *dnp, const char *name, int nmlen,
	struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct smb_share *ssp = dnp->n_mount->sm_share;
	struct mbchain *mbp;
	struct mdchain *mdp;
	struct timespec ctime;
	u_int8_t wc;
	u_int16_t fid;
	u_long tm;
	int error;

	error = smb_rq_alloc(SSTOCP(ssp), SMB_COM_CREATE_NEW, scred, &rqp);
	if (error)
		return error;
	smb_rq_getrequest(rqp, &mbp);

	/* get current time */
	getnanotime(&ctime);
	smb_time_local2server(&ctime, SSTOVC(ssp)->vc_sopt.sv_tz, &tm);

	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, SMB_FA_ARCHIVE);	/* attributes  */
	mb_put_uint32le(mbp, tm);
	smb_rq_wend(rqp);

	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	error = smbfs_fullpath(mbp, SSTOVC(ssp), dnp, name, nmlen);
	if (!error) {
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
		if (!error) {
			smb_rq_getreply(rqp, &mdp);
			md_get_uint8(mdp, &wc);
			if (wc == 1)
				md_get_uint16(mdp, &fid);
			else
				error = EBADRPC;
		}
	}

	smb_rq_done(rqp);
	if (!error)
		smbfs_smb_close(ssp, fid, &ctime, scred);

	return (error);
}

int
smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred)
{
	struct smb_vc *vcp;
	struct smb_rq *rqp;
	int error;

	if (ssp->ss_tid == SMB_TID_UNKNOWN)
		return (0);

	/*
	 * Build this as a "VC-level" request, so it will
	 * avoid testing the _GONE flag on the share,
	 * which has already been set at this point.
	 * Add the share pointer "by hand" below, so
	 * smb_iod_sendrq will plug in the TID.
	 */
	vcp = SSTOVC(ssp);
	error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_TREE_DISCONNECT, scred, &rqp);
	if (error)
		return (error);
	rqp->sr_share = ssp; /* by hand */

	smb_rq_wstart(rqp);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	smb_rq_bend(rqp);

	/*
	 * Run this with a relatively short timeout. (5 sec.)
	 * We don't really care about the result here, but we
	 * do need to make sure we send this out, or we could
	 * "leak" active tree IDs on interrupt or timeout.
	 * The NOINTR_SEND flag makes this request immune to
	 * interrupt or timeout until the send is done.
	 * Also, don't reconnect for this, of course!
	 */
	rqp->sr_flags |= (SMBR_NOINTR_SEND | SMBR_NORECONNECT);
	error = smb_rq_simple_timed(rqp, 5);
	SMBSDEBUG("%d\n", error);
	smb_rq_done(rqp);
	ssp->ss_tid = SMB_TID_UNKNOWN;
	return (error);
}

/*
 * Set DOS file attributes. mtime should be NULL for dialects above lm10
 */
int
smbfs_smb_setpattr(struct smbnode *np, u_int16_t attr, struct timespec *mtime,
	struct smb_cred *scred)
{
	struct smb_rq rq, *rqp = &rq;
	struct smb_share *ssp = np->n_mount->sm_share;
	struct mbchain *mbp;
	u_long time;
	int error, svtz;

	error = smb_rq_init(rqp, SSTOCP(ssp), SMB_COM_SET_INFORMATION, scred);
	if (error)
		return error;
	svtz = SSTOVC(ssp)->vc_sopt.sv_tz;
	smb_rq_getrequest(rqp, &mbp);
	smb_rq_wstart(rqp);
	mb_put_uint16le(mbp, attr);
	if (mtime) {
		smb_time_local2server(mtime, svtz, &time);
	} else
		time = 0;
	mb_put_uint32le(mbp, time);		/* mtime */
	mb_put_mem(mbp, NULL, 5 * 2, MB_MZERO);
	smb_rq_wend(rqp);
	smb_rq_bstart(rqp);
	mb_put_uint8(mbp, SMB_DT_ASCII);
	do {
		error = smbfs_fullpath(mbp, SSTOVC(ssp), np, NULL, 0);
		if (error)
			break;
		mb_put_uint8(mbp, SMB_DT_ASCII);
		mb_put_uint8(mbp, 0);
		smb_rq_bend(rqp);
		error = smb_rq_simple(rqp);
		if (error) {
			SMBERROR("smb_rq_simple(rqp) => error %d\n", error);
			break;
		}
	} while(0);
	smb_rq_done(rqp);
	return error;
}