1/*
2 * Copyright (c) 2000, Boris Popov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *    This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: rq.c,v 1.7 2001/04/16 04:33:01 bp Exp $
33 * $FreeBSD$
34 */
35#include <sys/param.h>
36#include <sys/ioctl.h>
37#include <sys/errno.h>
38#include <sys/stat.h>
39#include <ctype.h>
40#include <err.h>
41#include <stdio.h>
42#include <unistd.h>
43#include <string.h>
44#include <stdlib.h>
45#include <sysexits.h>
46
47#include <sys/mchain.h>
48
49#include <netsmb/smb_lib.h>
50#include <netsmb/smb_conn.h>
51#include <netsmb/smb_rap.h>
52
53
54int
55smb_rq_init(struct smb_ctx *ctx, u_char cmd, size_t rpbufsz, struct smb_rq **rqpp)
56{
57	struct smb_rq *rqp;
58
59	rqp = malloc(sizeof(*rqp));
60	if (rqp == NULL)
61		return ENOMEM;
62	bzero(rqp, sizeof(*rqp));
63	rqp->rq_cmd = cmd;
64	rqp->rq_ctx = ctx;
65	mb_init(&rqp->rq_rq, M_MINSIZE);
66	mb_init(&rqp->rq_rp, rpbufsz);
67	*rqpp = rqp;
68	return 0;
69}
70
71void
72smb_rq_done(struct smb_rq *rqp)
73{
74	mb_done(&rqp->rq_rp);
75	mb_done(&rqp->rq_rq);
76	free(rqp);
77}
78
79void
80smb_rq_wend(struct smb_rq *rqp)
81{
82	if (rqp->rq_rq.mb_count & 1)
83		smb_error("smbrq_wend: odd word count\n", 0);
84	rqp->rq_wcount = rqp->rq_rq.mb_count / 2;
85	rqp->rq_rq.mb_count = 0;
86}
87
88int
89smb_rq_dmem(struct mbdata *mbp, char *src, size_t size)
90{
91	struct mbuf *m;
92	char * dst;
93	int cplen, error;
94
95	if (size == 0)
96		return 0;
97	m = mbp->mb_cur;
98	if ((error = m_getm(m, size, &m)) != 0)
99		return error;
100	while (size > 0) {
101		cplen = M_TRAILINGSPACE(m);
102		if (cplen == 0) {
103			m = m->m_next;
104			continue;
105		}
106		if (cplen > (int)size)
107			cplen = size;
108		dst = mtod(m, char *) + m->m_len;
109		nls_mem_toext(dst, src, cplen);
110		size -= cplen;
111		src += cplen;
112		m->m_len += cplen;
113		mbp->mb_count += cplen;
114	}
115	mbp->mb_pos = mtod(m, char *) + m->m_len;
116	mbp->mb_cur = m;
117	return 0;
118}
119
120int
121smb_rq_dstring(struct mbdata *mbp, char *s)
122{
123	return smb_rq_dmem(mbp, s, strlen(s) + 1);
124}
125
126int
127smb_rq_simple(struct smb_rq *rqp)
128{
129	struct smbioc_rq krq;
130	struct mbdata *mbp;
131	char *data;
132
133	mbp = smb_rq_getrequest(rqp);
134	m_lineup(mbp->mb_top, &mbp->mb_top);
135	data = mtod(mbp->mb_top, char*);
136	bzero(&krq, sizeof(krq));
137	krq.ioc_cmd = rqp->rq_cmd;
138	krq.ioc_twc = rqp->rq_wcount;
139	krq.ioc_twords = data;
140	krq.ioc_tbc = mbp->mb_count;
141	krq.ioc_tbytes = data + rqp->rq_wcount * 2;
142	mbp = smb_rq_getreply(rqp);
143	krq.ioc_rpbufsz = mbp->mb_top->m_maxlen;
144	krq.ioc_rpbuf = mtod(mbp->mb_top, char *);
145	if (ioctl(rqp->rq_ctx->ct_fd, SMBIOC_REQUEST, &krq) == -1)
146		return errno;
147	mbp->mb_top->m_len = krq.ioc_rwc * 2 + krq.ioc_rbc;
148	rqp->rq_wcount = krq.ioc_rwc;
149	rqp->rq_bcount = krq.ioc_rbc;
150	return 0;
151}
152
153int
154smb_t2_request(struct smb_ctx *ctx, int setup, int setupcount,
155	const char *name,
156	int tparamcnt, void *tparam,
157	int tdatacnt, void *tdata,
158	int *rparamcnt, void *rparam,
159	int *rdatacnt, void *rdata)
160{
161	struct smbioc_t2rq krq;
162
163	bzero(&krq, sizeof(krq));
164	krq.ioc_setup[0] = setup;
165	krq.ioc_setupcnt = setupcount;
166	krq.ioc_name = (char *)name;
167	krq.ioc_tparamcnt = tparamcnt;
168	krq.ioc_tparam = tparam;
169	krq.ioc_tdatacnt = tdatacnt;
170	krq.ioc_tdata = tdata;
171	krq.ioc_rparamcnt = *rparamcnt;
172	krq.ioc_rparam = rparam;
173	krq.ioc_rdatacnt = *rdatacnt;
174	krq.ioc_rdata = rdata;
175	if (ioctl(ctx->ct_fd, SMBIOC_T2RQ, &krq) == -1)
176		return errno;
177	*rparamcnt = krq.ioc_rparamcnt;
178	*rdatacnt = krq.ioc_rdatacnt;
179	return 0;
180}
181