Beispiel #1
0
int
smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
/*	u_int8_t wc;
	u_int16_t tw, tw1;*/
	smb_uniptr unipp, ntencpass = NULL;
	char *pp, *up, *pbuf, *encpass;
	int error, plen, uniplen, ulen;

	vcp->vc_smbuid = SMB_UID_UNKNOWN;

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

	error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
	if (error)
		return error;
	pbuf = kmalloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
	encpass = kmalloc(24, M_SMBTEMP, M_WAITOK);
	if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
		iconv_convstr(vcp->vc_toupper, pbuf, smb_vc_getpass(vcp));
		iconv_convstr(vcp->vc_toserver, pbuf, pbuf);
		if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
			uniplen = plen = 24;
			smb_encrypt(pbuf, vcp->vc_ch, encpass);
			ntencpass = kmalloc(uniplen, M_SMBTEMP, M_WAITOK);
			iconv_convstr(vcp->vc_toserver, pbuf, smb_vc_getpass(vcp));
			smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
			pp = encpass;
			unipp = ntencpass;
		} else {
			plen = strlen(pbuf) + 1;
			pp = pbuf;
			uniplen = plen * 2;
			ntencpass = kmalloc(uniplen, M_SMBTEMP, M_WAITOK);
			smb_strtouni(ntencpass, smb_vc_getpass(vcp));
			plen--;

			/*
			 * The uniplen is zeroed because Samba cannot deal
			 * with this 2nd cleartext password.  This Samba
			 * "bug" is actually a workaround for problems in
			 * Microsoft clients.
			 */
			uniplen = 0/*-= 2*/;
			unipp = ntencpass;
		}
	} else {
		/*
		 * In the share security mode password will be used
		 * only in the tree authentication
		 */
		 pp = "";
		 plen = 1;
		 unipp = &smb_unieol;
		 uniplen = 0 /* sizeof(smb_unieol) */;
	}
	smb_rq_wstart(rqp);
	mbp = &rqp->sr_rq;
	up = vcp->vc_username;
	ulen = strlen(up) + 1;
	mb_put_uint8(mbp, 0xff);
	mb_put_uint8(mbp, 0);
	mb_put_uint16le(mbp, 0);
	mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
	mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
	mb_put_uint16le(mbp, vcp->vc_number);
	mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
	mb_put_uint16le(mbp, plen);
	if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
		mb_put_uint32le(mbp, 0);
		smb_rq_wend(rqp);
		smb_rq_bstart(rqp);
		mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
		smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
	} else {
		mb_put_uint16le(mbp, uniplen);
		mb_put_uint32le(mbp, 0);		/* reserved */
		mb_put_uint32le(mbp, vcp->obj.co_flags & SMBV_UNICODE ?
				     SMB_CAP_UNICODE : 0);
		smb_rq_wend(rqp);
		smb_rq_bstart(rqp);
		mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
		mb_put_mem(mbp, (caddr_t)unipp, uniplen, MB_MSYSTEM);
		smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);		/* AccountName */
		smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE);	/* PrimaryDomain */
		smb_put_dstring(mbp, vcp, "FreeBSD", SMB_CS_NONE);	/* Client's OS */
		smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE);		/* Client name */
	}
	smb_rq_bend(rqp);
	if (ntencpass)
		kfree(ntencpass, M_SMBTEMP);
	error = smb_rq_simple(rqp);
	SMBSDEBUG("%d\n", error);
	if (error) {
		if (rqp->sr_errclass == ERRDOS && rqp->sr_serror == ERRnoaccess)
			error = EAUTH;
		goto bad;
	}
	vcp->vc_smbuid = rqp->sr_rpuid;
bad:
	kfree(encpass, M_SMBTEMP);
	kfree(pbuf, M_SMBTEMP);
	smb_rq_done(rqp);
	return error;
}
Beispiel #2
0
int
smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred)
{
	struct smb_rq *rqp;
	struct mbchain *mbp;
	const smb_unichar *unipp;
	smb_uniptr ntencpass = NULL;
	char *up, *pbuf, *encpass;
	const char *pp;
	int error, plen, uniplen, ulen, upper;

	KASSERT(scred->scr_l == vcp->vc_iod->iod_l);

	upper = 0;

again:

	vcp->vc_smbuid = SMB_UID_UNKNOWN;

	error = smb_rq_alloc(VCTOCP(vcp), SMB_COM_SESSION_SETUP_ANDX, scred, &rqp);
	if (error)
		return error;
	pbuf = malloc(SMB_MAXPASSWORDLEN + 1, M_SMBTEMP, M_WAITOK);
	encpass = malloc(24, M_SMBTEMP, M_WAITOK);
	if (vcp->vc_sopt.sv_sm & SMB_SM_USER) {
		/*
		 * We try w/o uppercasing first so Samba mixed case
		 * passwords work.  If that fails we come back and try
		 * uppercasing to satisfy OS/2 and Windows for Workgroups.
		 */
		if (upper) {
			iconv_convstr(vcp->vc_toupper, pbuf,
			    smb_vc_getpass(vcp), SMB_MAXPASSWORDLEN + 1);
		} else {
			strlcpy(pbuf, smb_vc_getpass(vcp),
			    SMB_MAXPASSWORDLEN + 1);
		}
		if (!SMB_UNICODE_STRINGS(vcp))
			iconv_convstr(vcp->vc_toserver, pbuf, pbuf,
			    SMB_MAXPASSWORDLEN + 1);

		if (vcp->vc_sopt.sv_sm & SMB_SM_ENCRYPT) {
			uniplen = plen = 24;
			smb_encrypt(pbuf, vcp->vc_ch, encpass);
			ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
			if (SMB_UNICODE_STRINGS(vcp)) {
				strlcpy(pbuf, smb_vc_getpass(vcp),
				    SMB_MAXPASSWORDLEN + 1);
			} else
				iconv_convstr(vcp->vc_toserver, pbuf,
				    smb_vc_getpass(vcp),
				    SMB_MAXPASSWORDLEN + 1);
			smb_ntencrypt(pbuf, vcp->vc_ch, (u_char*)ntencpass);
			pp = encpass;
			unipp = ntencpass;
		} else {
			plen = strlen(pbuf) + 1;
			pp = pbuf;
			uniplen = plen * 2;
			ntencpass = malloc(uniplen, M_SMBTEMP, M_WAITOK);
			smb_strtouni(ntencpass, smb_vc_getpass(vcp));
			plen--;

			/*
			 * The uniplen is zeroed because Samba cannot deal
			 * with this 2nd cleartext password.  This Samba
			 * "bug" is actually a workaround for problems in
			 * Microsoft clients.
			 */
			uniplen = 0/*-= 2*/;
			unipp = ntencpass;
		}
	} else {
		/*
		 * In the share security mode password will be used
		 * only in the tree authentication
		 */
		 pp = "";
		 plen = 1;
		 unipp = &smb_unieol;
		 uniplen = 0;
	}
	smb_rq_wstart(rqp);
	mbp = &rqp->sr_rq;
	up = vcp->vc_username;
	ulen = strlen(up) + 1;
	/*
	 * If userid is null we are attempting anonymous browse login
	 * so passwords must be zero length.
	 */
	if (ulen == 1)
		plen = uniplen = 0;
	mb_put_uint8(mbp, 0xff);
	mb_put_uint8(mbp, 0);
	mb_put_uint16le(mbp, 0);
	mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxtx);
	mb_put_uint16le(mbp, vcp->vc_sopt.sv_maxmux);
	mb_put_uint16le(mbp, vcp->vc_number);
	mb_put_uint32le(mbp, vcp->vc_sopt.sv_skey);
	mb_put_uint16le(mbp, plen);
	if (SMB_DIALECT(vcp) < SMB_DIALECT_NTLM0_12) {
		mb_put_uint32le(mbp, 0);
		smb_rq_wend(rqp);
		smb_rq_bstart(rqp);
		mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
		smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);
	} else {
		mb_put_uint16le(mbp, uniplen);
		mb_put_uint32le(mbp, 0);		/* reserved */
		mb_put_uint32le(mbp, vcp->obj.co_flags & SMBV_UNICODE ?
				     SMB_CAP_UNICODE : 0);
		smb_rq_wend(rqp);
		smb_rq_bstart(rqp);
		mb_put_mem(mbp, pp, plen, MB_MSYSTEM);
		mb_put_mem(mbp, (const void *)unipp, uniplen, MB_MSYSTEM);
		smb_put_dstring(mbp, vcp, up, SMB_CS_NONE);		/* AccountName */
		smb_put_dstring(mbp, vcp, vcp->vc_domain, SMB_CS_NONE);	/* PrimaryDomain */
		smb_put_dstring(mbp, vcp, "NetBSD", SMB_CS_NONE);	/* Client's OS */
		smb_put_dstring(mbp, vcp, "NETSMB", SMB_CS_NONE);		/* Client name */
	}
	smb_rq_bend(rqp);
	if (ntencpass)
		free(ntencpass, M_SMBTEMP);
	error = smb_rq_simple(rqp);
	SMBSDEBUG(("%d\n", error));
	if (error) {
		if (error == EACCES)
			error = EAUTH;
		goto bad;
	}
	vcp->vc_smbuid = rqp->sr_rpuid;
bad:
	free(encpass, M_SMBTEMP);
	free(pbuf, M_SMBTEMP);
	smb_rq_done(rqp);
	if (error && !upper && vcp->vc_sopt.sv_sm & SMB_SM_USER) {
		upper = 1;
		goto again;
	}
	return error;
}