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- /*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2000-2001 Boris Popov
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #include <sys/param.h>
- #include <sys/malloc.h>
- #include <sys/kernel.h>
- #include <sys/systm.h>
- #include <sys/conf.h>
- #include <sys/proc.h>
- #include <sys/fcntl.h>
- #include <sys/socket.h>
- #include <sys/socketvar.h>
- #include <sys/sysctl.h>
- #include <sys/mbuf.h>
- #include <sys/iconv.h>
- #include <netsmb/smb.h>
- #include <netsmb/smb_conn.h>
- #include <netsmb/smb_rq.h>
- #include <netsmb/smb_subr.h>
- #include <netsmb/smb_dev.h>
- /*
- * helpers for nsmb device. Can be moved to the smb_dev.c file.
- */
- static void smb_usr_vcspec_free(struct smb_vcspec *spec);
- static int
- smb_usr_vc2spec(struct smbioc_ossn *dp, struct smb_vcspec *spec)
- {
- int flags = 0;
- bzero(spec, sizeof(*spec));
- #ifdef NETSMB_NO_ANON_USER
- if (dp->ioc_user[0] == 0)
- return EINVAL;
- #endif
- if (dp->ioc_server == NULL)
- return EINVAL;
- if (dp->ioc_localcs[0] == 0) {
- SMBERROR("no local charset ?\n");
- return EINVAL;
- }
- spec->sap = smb_memdupin(dp->ioc_server, dp->ioc_svlen);
- if (spec->sap == NULL)
- return ENOMEM;
- if (dp->ioc_local) {
- spec->lap = smb_memdupin(dp->ioc_local, dp->ioc_lolen);
- if (spec->lap == NULL) {
- smb_usr_vcspec_free(spec);
- return ENOMEM;
- }
- }
- spec->srvname = dp->ioc_srvname;
- spec->pass = dp->ioc_password;
- spec->domain = dp->ioc_workgroup;
- spec->username = dp->ioc_user;
- spec->mode = dp->ioc_mode;
- spec->rights = dp->ioc_rights;
- spec->owner = dp->ioc_owner;
- spec->group = dp->ioc_group;
- spec->localcs = dp->ioc_localcs;
- spec->servercs = dp->ioc_servercs;
- if (dp->ioc_opt & SMBVOPT_PRIVATE)
- flags |= SMBV_PRIVATE;
- if (dp->ioc_opt & SMBVOPT_SINGLESHARE)
- flags |= SMBV_PRIVATE | SMBV_SINGLESHARE;
- spec->flags = flags;
- return 0;
- }
- static void
- smb_usr_vcspec_free(struct smb_vcspec *spec)
- {
- if (spec->sap)
- smb_memfree(spec->sap);
- if (spec->lap)
- smb_memfree(spec->lap);
- }
- static int
- smb_usr_share2spec(struct smbioc_oshare *dp, struct smb_sharespec *spec)
- {
- bzero(spec, sizeof(*spec));
- spec->mode = dp->ioc_mode;
- spec->rights = dp->ioc_rights;
- spec->owner = dp->ioc_owner;
- spec->group = dp->ioc_group;
- spec->name = dp->ioc_share;
- spec->stype = dp->ioc_stype;
- spec->pass = dp->ioc_password;
- return 0;
- }
- int
- smb_usr_lookup(struct smbioc_lookup *dp, struct smb_cred *scred,
- struct smb_vc **vcpp, struct smb_share **sspp)
- {
- struct smb_vc *vcp = NULL;
- struct smb_vcspec vspec; /* XXX */
- struct smb_sharespec sspec, *sspecp = NULL; /* XXX */
- int error;
- if (dp->ioc_level < SMBL_VC || dp->ioc_level > SMBL_SHARE)
- return EINVAL;
- error = smb_usr_vc2spec(&dp->ioc_ssn, &vspec);
- if (error)
- return error;
- if (dp->ioc_flags & SMBLK_CREATE)
- vspec.flags |= SMBV_CREATE;
- if (dp->ioc_level >= SMBL_SHARE) {
- error = smb_usr_share2spec(&dp->ioc_sh, &sspec);
- if (error)
- goto out;
- sspecp = &sspec;
- }
- error = smb_sm_lookup(&vspec, sspecp, scred, &vcp);
- if (error == 0) {
- *vcpp = vcp;
- *sspp = vspec.ssp;
- }
- out:
- smb_usr_vcspec_free(&vspec);
- return error;
- }
- /*
- * Connect to the resource specified by smbioc_ossn structure.
- * It may either find an existing connection or try to establish a new one.
- * If no errors occurred smb_vc returned locked and referenced.
- */
- int
- smb_usr_opensession(struct smbioc_ossn *dp, struct smb_cred *scred,
- struct smb_vc **vcpp)
- {
- struct smb_vc *vcp = NULL;
- struct smb_vcspec vspec;
- int error;
- error = smb_usr_vc2spec(dp, &vspec);
- if (error)
- return error;
- if (dp->ioc_opt & SMBVOPT_CREATE)
- vspec.flags |= SMBV_CREATE;
- error = smb_sm_lookup(&vspec, NULL, scred, &vcp);
- smb_usr_vcspec_free(&vspec);
- return error;
- }
- int
- smb_usr_openshare(struct smb_vc *vcp, struct smbioc_oshare *dp,
- struct smb_cred *scred, struct smb_share **sspp)
- {
- struct smb_share *ssp;
- struct smb_sharespec shspec;
- int error;
- error = smb_usr_share2spec(dp, &shspec);
- if (error)
- return error;
- error = smb_vc_lookupshare(vcp, &shspec, scred, &ssp);
- if (error == 0) {
- *sspp = ssp;
- return 0;
- }
- if ((dp->ioc_opt & SMBSOPT_CREATE) == 0)
- return error;
- error = smb_share_create(vcp, &shspec, scred, &ssp);
- if (error)
- return error;
- error = smb_smb_treeconnect(ssp, scred);
- if (error) {
- smb_share_put(ssp, scred);
- } else
- *sspp = ssp;
- return error;
- }
- int
- smb_usr_simplerequest(struct smb_share *ssp, struct smbioc_rq *dp,
- struct smb_cred *scred)
- {
- struct smb_rq *rqp;
- struct mbchain *mbp;
- struct mdchain *mdp;
- u_int8_t wc;
- u_int16_t bc;
- int error;
- switch (dp->ioc_cmd) {
- case SMB_COM_TRANSACTION2:
- case SMB_COM_TRANSACTION2_SECONDARY:
- case SMB_COM_CLOSE_AND_TREE_DISC:
- case SMB_COM_TREE_CONNECT:
- case SMB_COM_TREE_DISCONNECT:
- case SMB_COM_NEGOTIATE:
- case SMB_COM_SESSION_SETUP_ANDX:
- case SMB_COM_LOGOFF_ANDX:
- case SMB_COM_TREE_CONNECT_ANDX:
- return EPERM;
- }
- rqp = malloc(sizeof(struct smb_rq), M_SMBTEMP, M_WAITOK);
- error = smb_rq_init(rqp, SSTOCP(ssp), dp->ioc_cmd, scred);
- if (error) {
- free(rqp, M_SMBTEMP);
- return error;
- }
- mbp = &rqp->sr_rq;
- smb_rq_wstart(rqp);
- error = mb_put_mem(mbp, dp->ioc_twords, dp->ioc_twc * 2, MB_MUSER);
- if (error)
- goto bad;
- smb_rq_wend(rqp);
- smb_rq_bstart(rqp);
- error = mb_put_mem(mbp, dp->ioc_tbytes, dp->ioc_tbc, MB_MUSER);
- if (error)
- goto bad;
- smb_rq_bend(rqp);
- error = smb_rq_simple(rqp);
- if (error)
- goto bad;
- mdp = &rqp->sr_rp;
- md_get_uint8(mdp, &wc);
- dp->ioc_rwc = wc;
- wc *= 2;
- if (wc > dp->ioc_rpbufsz) {
- error = EBADRPC;
- goto bad;
- }
- error = md_get_mem(mdp, dp->ioc_rpbuf, wc, MB_MUSER);
- if (error)
- goto bad;
- md_get_uint16le(mdp, &bc);
- if ((wc + bc) > dp->ioc_rpbufsz) {
- error = EBADRPC;
- goto bad;
- }
- dp->ioc_rbc = bc;
- error = md_get_mem(mdp, dp->ioc_rpbuf + wc, bc, MB_MUSER);
- bad:
- dp->ioc_errclass = rqp->sr_errclass;
- dp->ioc_serror = rqp->sr_serror;
- dp->ioc_error = rqp->sr_error;
- smb_rq_done(rqp);
- free(rqp, M_SMBTEMP);
- return error;
- }
- static int
- smb_cpdatain(struct mbchain *mbp, int len, caddr_t data)
- {
- int error;
- if (len == 0)
- return 0;
- error = mb_init(mbp);
- if (error)
- return error;
- return mb_put_mem(mbp, data, len, MB_MUSER);
- }
- int
- smb_usr_t2request(struct smb_share *ssp, struct smbioc_t2rq *dp,
- struct smb_cred *scred)
- {
- struct smb_t2rq *t2p;
- struct mdchain *mdp;
- int error, len;
- if (dp->ioc_setupcnt > 3)
- return EINVAL;
- t2p = malloc(sizeof(struct smb_t2rq), M_SMBTEMP, M_WAITOK);
- error = smb_t2_init(t2p, SSTOCP(ssp), dp->ioc_setup[0], scred);
- if (error) {
- free(t2p, M_SMBTEMP);
- return error;
- }
- len = t2p->t2_setupcount = dp->ioc_setupcnt;
- if (len > 1)
- t2p->t2_setupdata = dp->ioc_setup;
- if (dp->ioc_name) {
- t2p->t_name = smb_strdupin(dp->ioc_name, 128);
- if (t2p->t_name == NULL) {
- error = ENOMEM;
- goto bad;
- }
- }
- t2p->t2_maxscount = 0;
- t2p->t2_maxpcount = dp->ioc_rparamcnt;
- t2p->t2_maxdcount = dp->ioc_rdatacnt;
- error = smb_cpdatain(&t2p->t2_tparam, dp->ioc_tparamcnt, dp->ioc_tparam);
- if (error)
- goto bad;
- error = smb_cpdatain(&t2p->t2_tdata, dp->ioc_tdatacnt, dp->ioc_tdata);
- if (error)
- goto bad;
- error = smb_t2_request(t2p);
- if (error)
- goto bad;
- mdp = &t2p->t2_rparam;
- if (mdp->md_top) {
- len = m_fixhdr(mdp->md_top);
- if (len > dp->ioc_rparamcnt) {
- error = EMSGSIZE;
- goto bad;
- }
- dp->ioc_rparamcnt = len;
- error = md_get_mem(mdp, dp->ioc_rparam, len, MB_MUSER);
- if (error)
- goto bad;
- } else
- dp->ioc_rparamcnt = 0;
- mdp = &t2p->t2_rdata;
- if (mdp->md_top) {
- len = m_fixhdr(mdp->md_top);
- if (len > dp->ioc_rdatacnt) {
- error = EMSGSIZE;
- goto bad;
- }
- dp->ioc_rdatacnt = len;
- error = md_get_mem(mdp, dp->ioc_rdata, len, MB_MUSER);
- } else
- dp->ioc_rdatacnt = 0;
- bad:
- if (t2p->t_name)
- smb_strfree(t2p->t_name);
- smb_t2_done(t2p);
- free(t2p, M_SMBTEMP);
- return error;
- }
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