1/*
2 * Copyright (c) 2000-2001 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 *
| 1/*
2 * Copyright (c) 2000-2001 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 * $FreeBSD: head/sys/netsmb/smb_trantcp.c 76618 2001-05-15 10:19:57Z tanimura $
| 32 * $FreeBSD: head/sys/netsmb/smb_trantcp.c 87192 2001-12-02 08:47:29Z bp $
|
33 */
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/mbuf.h>
39#include <sys/proc.h>
40#include <sys/protosw.h>
41#include <sys/socket.h>
42#include <sys/socketvar.h>
43#include <sys/poll.h>
44#include <sys/uio.h>
45#include <sys/sysctl.h>
46#include <sys/condvar.h>
47
48#include <net/if.h>
49#include <net/route.h>
50
51#include <netinet/in.h>
52#include <netinet/tcp.h>
53
54#include <sys/mchain.h>
55
56#include <netsmb/netbios.h>
57
58#include <netsmb/smb.h>
59#include <netsmb/smb_conn.h>
60#include <netsmb/smb_tran.h>
61#include <netsmb/smb_trantcp.h>
62#include <netsmb/smb_subr.h>
63
64#define M_NBDATA M_PCB
65
66static int smb_tcpsndbuf = 10 * 1024;
67static int smb_tcprcvbuf = 10 * 1024;
68
69SYSCTL_DECL(_net_smb);
70SYSCTL_INT(_net_smb, OID_AUTO, tcpsndbuf, CTLFLAG_RW, &smb_tcpsndbuf, 0, "");
71SYSCTL_INT(_net_smb, OID_AUTO, tcprcvbuf, CTLFLAG_RW, &smb_tcprcvbuf, 0, "");
72
| 33 */
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/malloc.h>
38#include <sys/mbuf.h>
39#include <sys/proc.h>
40#include <sys/protosw.h>
41#include <sys/socket.h>
42#include <sys/socketvar.h>
43#include <sys/poll.h>
44#include <sys/uio.h>
45#include <sys/sysctl.h>
46#include <sys/condvar.h>
47
48#include <net/if.h>
49#include <net/route.h>
50
51#include <netinet/in.h>
52#include <netinet/tcp.h>
53
54#include <sys/mchain.h>
55
56#include <netsmb/netbios.h>
57
58#include <netsmb/smb.h>
59#include <netsmb/smb_conn.h>
60#include <netsmb/smb_tran.h>
61#include <netsmb/smb_trantcp.h>
62#include <netsmb/smb_subr.h>
63
64#define M_NBDATA M_PCB
65
66static int smb_tcpsndbuf = 10 * 1024;
67static int smb_tcprcvbuf = 10 * 1024;
68
69SYSCTL_DECL(_net_smb);
70SYSCTL_INT(_net_smb, OID_AUTO, tcpsndbuf, CTLFLAG_RW, &smb_tcpsndbuf, 0, "");
71SYSCTL_INT(_net_smb, OID_AUTO, tcprcvbuf, CTLFLAG_RW, &smb_tcprcvbuf, 0, "");
72
|
73#define nb_sosend(so,m,flags,p) (so)->so_proto->pr_usrreqs->pru_sosend( \
74 so, NULL, 0, m, 0, flags, p)
| 73#define nb_sosend(so,m,flags,td) (so)->so_proto->pr_usrreqs->pru_sosend( \
74 so, NULL, 0, m, 0, flags, td)
|
75
76static int nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
| 75
76static int nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
|
77 u_int8_t *rpcodep, struct proc *p);
78static int smb_nbst_disconnect(struct smb_vc *vcp, struct proc *p);
| 77 u_int8_t *rpcodep, struct thread *td);
78static int smb_nbst_disconnect(struct smb_vc *vcp, struct thread *td);
|
79
80static int
81nb_setsockopt_int(struct socket *so, int level, int name, int val)
82{
83 struct sockopt sopt;
84
85 bzero(&sopt, sizeof(sopt));
86 sopt.sopt_level = level;
87 sopt.sopt_name = name;
88 sopt.sopt_val = &val;
89 sopt.sopt_valsize = sizeof(val);
90 return sosetopt(so, &sopt);
91}
92
93static __inline int
| 79
80static int
81nb_setsockopt_int(struct socket *so, int level, int name, int val)
82{
83 struct sockopt sopt;
84
85 bzero(&sopt, sizeof(sopt));
86 sopt.sopt_level = level;
87 sopt.sopt_name = name;
88 sopt.sopt_val = &val;
89 sopt.sopt_valsize = sizeof(val);
90 return sosetopt(so, &sopt);
91}
92
93static __inline int
|
94nb_poll(struct nbpcb *nbp, int events, struct proc *p)
| 94nb_poll(struct nbpcb *nbp, int events, struct thread *td)
|
95{
96 return nbp->nbp_tso->so_proto->pr_usrreqs->pru_sopoll(nbp->nbp_tso,
| 95{
96 return nbp->nbp_tso->so_proto->pr_usrreqs->pru_sopoll(nbp->nbp_tso,
|
97 events, NULL, p);
| 97 events, NULL, td);
|
98}
99
100static int
| 98}
99
100static int
|
101nbssn_rselect(struct nbpcb *nbp, struct timeval *tv, int events, struct proc *p)
| 101nbssn_rselect(struct nbpcb *nbp, struct timeval *tv, int events,
102 struct thread *td)
|
102{
103 struct timeval atv, rtv, ttv;
| 103{
104 struct timeval atv, rtv, ttv;
|
| 105 struct proc *p;
|
104 int timo, error;
105
106 if (tv) {
107 atv = *tv;
108 if (itimerfix(&atv)) {
109 error = EINVAL;
110 goto done_noproclock;
111 }
112 getmicrouptime(&rtv);
113 timevaladd(&atv, &rtv);
114 }
115 timo = 0;
| 106 int timo, error;
107
108 if (tv) {
109 atv = *tv;
110 if (itimerfix(&atv)) {
111 error = EINVAL;
112 goto done_noproclock;
113 }
114 getmicrouptime(&rtv);
115 timevaladd(&atv, &rtv);
116 }
117 timo = 0;
|
| 118 p = td->td_proc;
|
116 PROC_LOCK(p);
| 119 PROC_LOCK(p);
|
117 p->p_flag |= P_SELECT;
| 120 mtx_lock_spin(&sched_lock);
121 td->td_flags |= TDF_SELECT;
122 mtx_unlock_spin(&sched_lock);
|
118 PROC_UNLOCK(p);
| 123 PROC_UNLOCK(p);
|
119 error = nb_poll(nbp, events, p);
| 124 error = nb_poll(nbp, events, td);
|
120 PROC_LOCK(p);
121 if (error) {
122 error = 0;
123 goto done;
124 }
125 if (tv) {
126 getmicrouptime(&rtv);
127 if (timevalcmp(&rtv, &atv, >=)) {
128 /*
129 * An event of our interest may occur during locking a process.
130 * In order to avoid missing the event that occured during locking
131 * the process, test P_SELECT and rescan file descriptors if
132 * necessary.
133 */
| 125 PROC_LOCK(p);
126 if (error) {
127 error = 0;
128 goto done;
129 }
130 if (tv) {
131 getmicrouptime(&rtv);
132 if (timevalcmp(&rtv, &atv, >=)) {
133 /*
134 * An event of our interest may occur during locking a process.
135 * In order to avoid missing the event that occured during locking
136 * the process, test P_SELECT and rescan file descriptors if
137 * necessary.
138 */
|
134 if ((p->p_flag & P_SELECT) == 0) {
135 p->p_flag |= P_SELECT;
| 139 mtx_lock_spin(&sched_lock);
140 if ((td->td_flags & TDF_SELECT) == 0) {
141 td->td_flags |= TDF_SELECT;
142 mtx_unlock_spin(&sched_lock);
|
136 PROC_UNLOCK(p);
| 143 PROC_UNLOCK(p);
|
137 error = nb_poll(nbp, events, p);
| 144 error = nb_poll(nbp, events, td);
|
138 PROC_LOCK(p);
| 145 PROC_LOCK(p);
|
139 }
| 146 } else
147 mtx_unlock_spin(&sched_lock);
|
140 goto done;
141 }
142 ttv = atv;
143 timevalsub(&ttv, &rtv);
144 timo = tvtohz(&ttv);
145 }
| 148 goto done;
149 }
150 ttv = atv;
151 timevalsub(&ttv, &rtv);
152 timo = tvtohz(&ttv);
153 }
|
146 p->p_flag &= ~P_SELECT;
| 154 mtx_lock_spin(&sched_lock);
155 td->td_flags &= ~TDF_SELECT;
156 mtx_unlock_spin(&sched_lock);
|
147 if (timo > 0)
148 error = cv_timedwait(&selwait, &p->p_mtx, timo);
149 else {
150 cv_wait(&selwait, &p->p_mtx);
151 error = 0;
152 }
153
154done:
| 157 if (timo > 0)
158 error = cv_timedwait(&selwait, &p->p_mtx, timo);
159 else {
160 cv_wait(&selwait, &p->p_mtx);
161 error = 0;
162 }
163
164done:
|
| 165 mtx_lock_spin(&sched_lock);
166 td->td_flags &= ~TDF_SELECT;
167 mtx_unlock_spin(&sched_lock);
|
155 PROC_UNLOCK(p);
| 168 PROC_UNLOCK(p);
|
156 p->p_flag &= ~P_SELECT;
| 169
|
157done_noproclock:
158 if (error == ERESTART)
159 return 0;
160 return error;
161}
162
163static int
164nb_intr(struct nbpcb *nbp, struct proc *p)
165{
166 return 0;
167}
168
169static void
170nb_upcall(struct socket *so, void *arg, int waitflag)
171{
172 struct nbpcb *nbp = arg;
173
174 if (arg == NULL || nbp->nbp_selectid == NULL)
175 return;
176 wakeup(nbp->nbp_selectid);
177}
178
179static int
180nb_sethdr(struct mbuf *m, u_int8_t type, u_int32_t len)
181{
182 u_int32_t *p = mtod(m, u_int32_t *);
183
184 *p = htonl((len & 0x1FFFF) | (type << 24));
185 return 0;
186}
187
188static int
189nb_put_name(struct mbchain *mbp, struct sockaddr_nb *snb)
190{
191 int error;
192 u_char seglen, *cp;
193
194 cp = snb->snb_name;
195 if (*cp == 0)
196 return EINVAL;
197 NBDEBUG("[%s]\n", cp);
198 for (;;) {
199 seglen = (*cp) + 1;
200 error = mb_put_mem(mbp, cp, seglen, MB_MSYSTEM);
201 if (error)
202 return error;
203 if (seglen == 1)
204 break;
205 cp += seglen;
206 }
207 return 0;
208}
209
210static int
| 170done_noproclock:
171 if (error == ERESTART)
172 return 0;
173 return error;
174}
175
176static int
177nb_intr(struct nbpcb *nbp, struct proc *p)
178{
179 return 0;
180}
181
182static void
183nb_upcall(struct socket *so, void *arg, int waitflag)
184{
185 struct nbpcb *nbp = arg;
186
187 if (arg == NULL || nbp->nbp_selectid == NULL)
188 return;
189 wakeup(nbp->nbp_selectid);
190}
191
192static int
193nb_sethdr(struct mbuf *m, u_int8_t type, u_int32_t len)
194{
195 u_int32_t *p = mtod(m, u_int32_t *);
196
197 *p = htonl((len & 0x1FFFF) | (type << 24));
198 return 0;
199}
200
201static int
202nb_put_name(struct mbchain *mbp, struct sockaddr_nb *snb)
203{
204 int error;
205 u_char seglen, *cp;
206
207 cp = snb->snb_name;
208 if (*cp == 0)
209 return EINVAL;
210 NBDEBUG("[%s]\n", cp);
211 for (;;) {
212 seglen = (*cp) + 1;
213 error = mb_put_mem(mbp, cp, seglen, MB_MSYSTEM);
214 if (error)
215 return error;
216 if (seglen == 1)
217 break;
218 cp += seglen;
219 }
220 return 0;
221}
222
223static int
|
211nb_connect_in(struct nbpcb *nbp, struct sockaddr_in *to, struct proc *p)
| 224nb_connect_in(struct nbpcb *nbp, struct sockaddr_in *to, struct thread *td)
|
212{
213 struct socket *so;
214 int error, s;
215
| 225{
226 struct socket *so;
227 int error, s;
228
|
216 error = socreate(AF_INET, &so, SOCK_STREAM, IPPROTO_TCP, p);
| 229 error = socreate(AF_INET, &so, SOCK_STREAM, IPPROTO_TCP, td);
|
217 if (error)
218 return error;
219 nbp->nbp_tso = so;
220 so->so_upcallarg = (caddr_t)nbp;
221 so->so_upcall = nb_upcall;
222 so->so_rcv.sb_flags |= SB_UPCALL;
223 so->so_rcv.sb_timeo = (5 * hz);
224 so->so_snd.sb_timeo = (5 * hz);
225 error = soreserve(so, nbp->nbp_sndbuf, nbp->nbp_rcvbuf);
226 if (error)
227 goto bad;
228 nb_setsockopt_int(so, SOL_SOCKET, SO_KEEPALIVE, 1);
229 nb_setsockopt_int(so, IPPROTO_TCP, TCP_NODELAY, 1);
230 so->so_rcv.sb_flags &= ~SB_NOINTR;
231 so->so_snd.sb_flags &= ~SB_NOINTR;
| 230 if (error)
231 return error;
232 nbp->nbp_tso = so;
233 so->so_upcallarg = (caddr_t)nbp;
234 so->so_upcall = nb_upcall;
235 so->so_rcv.sb_flags |= SB_UPCALL;
236 so->so_rcv.sb_timeo = (5 * hz);
237 so->so_snd.sb_timeo = (5 * hz);
238 error = soreserve(so, nbp->nbp_sndbuf, nbp->nbp_rcvbuf);
239 if (error)
240 goto bad;
241 nb_setsockopt_int(so, SOL_SOCKET, SO_KEEPALIVE, 1);
242 nb_setsockopt_int(so, IPPROTO_TCP, TCP_NODELAY, 1);
243 so->so_rcv.sb_flags &= ~SB_NOINTR;
244 so->so_snd.sb_flags &= ~SB_NOINTR;
|
232 error = soconnect(so, (struct sockaddr*)to, p);
| 245 error = soconnect(so, (struct sockaddr*)to, td);
|
233 if (error)
234 goto bad;
235 s = splnet();
236 while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
237 tsleep(&so->so_timeo, PSOCK, "nbcon", 2 * hz);
238 if ((so->so_state & SS_ISCONNECTING) && so->so_error == 0 &&
| 246 if (error)
247 goto bad;
248 s = splnet();
249 while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
250 tsleep(&so->so_timeo, PSOCK, "nbcon", 2 * hz);
251 if ((so->so_state & SS_ISCONNECTING) && so->so_error == 0 &&
|
239 (error = nb_intr(nbp, p)) != 0) {
| 252 (error = nb_intr(nbp, td->td_proc)) != 0) {
|
240 so->so_state &= ~SS_ISCONNECTING;
241 splx(s);
242 goto bad;
243 }
244 }
245 if (so->so_error) {
246 error = so->so_error;
247 so->so_error = 0;
248 splx(s);
249 goto bad;
250 }
251 splx(s);
252 return 0;
253bad:
| 253 so->so_state &= ~SS_ISCONNECTING;
254 splx(s);
255 goto bad;
256 }
257 }
258 if (so->so_error) {
259 error = so->so_error;
260 so->so_error = 0;
261 splx(s);
262 goto bad;
263 }
264 splx(s);
265 return 0;
266bad:
|
254 smb_nbst_disconnect(nbp->nbp_vc, p);
| 267 smb_nbst_disconnect(nbp->nbp_vc, td);
|
255 return error;
256}
257
258static int
| 268 return error;
269}
270
271static int
|
259nbssn_rq_request(struct nbpcb *nbp, struct proc *p)
| 272nbssn_rq_request(struct nbpcb *nbp, struct thread *td)
|
260{
261 struct mbchain mb, *mbp = &mb;
262 struct mdchain md, *mdp = &md;
263 struct mbuf *m0;
264 struct timeval tv;
265 struct sockaddr_in sin;
266 u_short port;
267 u_int8_t rpcode;
268 int error, rplen;
269
270 error = mb_init(mbp);
271 if (error)
272 return error;
273 mb_put_uint32le(mbp, 0);
274 nb_put_name(mbp, nbp->nbp_paddr);
275 nb_put_name(mbp, nbp->nbp_laddr);
276 nb_sethdr(mbp->mb_top, NB_SSN_REQUEST, mb_fixhdr(mbp) - 4);
| 273{
274 struct mbchain mb, *mbp = &mb;
275 struct mdchain md, *mdp = &md;
276 struct mbuf *m0;
277 struct timeval tv;
278 struct sockaddr_in sin;
279 u_short port;
280 u_int8_t rpcode;
281 int error, rplen;
282
283 error = mb_init(mbp);
284 if (error)
285 return error;
286 mb_put_uint32le(mbp, 0);
287 nb_put_name(mbp, nbp->nbp_paddr);
288 nb_put_name(mbp, nbp->nbp_laddr);
289 nb_sethdr(mbp->mb_top, NB_SSN_REQUEST, mb_fixhdr(mbp) - 4);
|
277 error = nb_sosend(nbp->nbp_tso, mbp->mb_top, 0, p);
| 290 error = nb_sosend(nbp->nbp_tso, mbp->mb_top, 0, td);
|
278 if (!error) {
279 nbp->nbp_state = NBST_RQSENT;
280 }
281 mb_detach(mbp);
282 mb_done(mbp);
283 if (error)
284 return error;
285 TIMESPEC_TO_TIMEVAL(&tv, &nbp->nbp_timo);
| 291 if (!error) {
292 nbp->nbp_state = NBST_RQSENT;
293 }
294 mb_detach(mbp);
295 mb_done(mbp);
296 if (error)
297 return error;
298 TIMESPEC_TO_TIMEVAL(&tv, &nbp->nbp_timo);
|
286 error = nbssn_rselect(nbp, &tv, POLLIN, p);
| 299 error = nbssn_rselect(nbp, &tv, POLLIN, td);
|
287 if (error == EWOULDBLOCK) { /* Timeout */
288 NBDEBUG("initial request timeout\n");
289 return ETIMEDOUT;
290 }
291 if (error) /* restart or interrupt */
292 return error;
| 300 if (error == EWOULDBLOCK) { /* Timeout */
301 NBDEBUG("initial request timeout\n");
302 return ETIMEDOUT;
303 }
304 if (error) /* restart or interrupt */
305 return error;
|
293 error = nbssn_recv(nbp, &m0, &rplen, &rpcode, p);
| 306 error = nbssn_recv(nbp, &m0, &rplen, &rpcode, td);
|
294 if (error) {
295 NBDEBUG("recv() error %d\n", error);
296 return error;
297 }
298 /*
299 * Process NETBIOS reply
300 */
301 if (m0)
302 md_initm(mdp, m0);
303 error = 0;
304 do {
305 if (rpcode == NB_SSN_POSRESP) {
306 nbp->nbp_state = NBST_SESSION;
307 nbp->nbp_flags |= NBF_CONNECTED;
308 break;
309 }
310 if (rpcode != NB_SSN_RTGRESP) {
311 error = ECONNABORTED;
312 break;
313 }
314 if (rplen != 6) {
315 error = ECONNABORTED;
316 break;
317 }
318 md_get_mem(mdp, (caddr_t)&sin.sin_addr, 4, MB_MSYSTEM);
319 md_get_uint16(mdp, &port);
320 sin.sin_port = port;
321 nbp->nbp_state = NBST_RETARGET;
| 307 if (error) {
308 NBDEBUG("recv() error %d\n", error);
309 return error;
310 }
311 /*
312 * Process NETBIOS reply
313 */
314 if (m0)
315 md_initm(mdp, m0);
316 error = 0;
317 do {
318 if (rpcode == NB_SSN_POSRESP) {
319 nbp->nbp_state = NBST_SESSION;
320 nbp->nbp_flags |= NBF_CONNECTED;
321 break;
322 }
323 if (rpcode != NB_SSN_RTGRESP) {
324 error = ECONNABORTED;
325 break;
326 }
327 if (rplen != 6) {
328 error = ECONNABORTED;
329 break;
330 }
331 md_get_mem(mdp, (caddr_t)&sin.sin_addr, 4, MB_MSYSTEM);
332 md_get_uint16(mdp, &port);
333 sin.sin_port = port;
334 nbp->nbp_state = NBST_RETARGET;
|
322 smb_nbst_disconnect(nbp->nbp_vc, p);
323 error = nb_connect_in(nbp, &sin, p);
| 335 smb_nbst_disconnect(nbp->nbp_vc, td);
336 error = nb_connect_in(nbp, &sin, td);
|
324 if (!error)
| 337 if (!error)
|
325 error = nbssn_rq_request(nbp, p);
| 338 error = nbssn_rq_request(nbp, td);
|
326 if (error) {
| 339 if (error) {
|
327 smb_nbst_disconnect(nbp->nbp_vc, p);
| 340 smb_nbst_disconnect(nbp->nbp_vc, td);
|
328 break;
329 }
330 } while(0);
331 if (m0)
332 md_done(mdp);
333 return error;
334}
335
336static int
337nbssn_recvhdr(struct nbpcb *nbp, int *lenp,
| 341 break;
342 }
343 } while(0);
344 if (m0)
345 md_done(mdp);
346 return error;
347}
348
349static int
350nbssn_recvhdr(struct nbpcb *nbp, int *lenp,
|
338 u_int8_t *rpcodep, int flags, struct proc *p)
| 351 u_int8_t *rpcodep, int flags, struct thread *td)
|
339{
340 struct socket *so = nbp->nbp_tso;
341 struct uio auio;
342 struct iovec aio;
343 u_int32_t len;
344 int error;
345
346 aio.iov_base = (caddr_t)&len;
347 aio.iov_len = sizeof(len);
348 auio.uio_iov = &aio;
349 auio.uio_iovcnt = 1;
350 auio.uio_segflg = UIO_SYSSPACE;
351 auio.uio_rw = UIO_READ;
352 auio.uio_offset = 0;
353 auio.uio_resid = sizeof(len);
| 352{
353 struct socket *so = nbp->nbp_tso;
354 struct uio auio;
355 struct iovec aio;
356 u_int32_t len;
357 int error;
358
359 aio.iov_base = (caddr_t)&len;
360 aio.iov_len = sizeof(len);
361 auio.uio_iov = &aio;
362 auio.uio_iovcnt = 1;
363 auio.uio_segflg = UIO_SYSSPACE;
364 auio.uio_rw = UIO_READ;
365 auio.uio_offset = 0;
366 auio.uio_resid = sizeof(len);
|
354 auio.uio_procp = p;
| 367 auio.uio_td = td;
|
355 error = so->so_proto->pr_usrreqs->pru_soreceive
356 (so, (struct sockaddr **)NULL, &auio,
357 (struct mbuf **)NULL, (struct mbuf **)NULL, &flags);
358 if (error)
359 return error;
360 if (auio.uio_resid > 0) {
361 SMBSDEBUG("short reply\n");
362 return EPIPE;
363 }
364 len = ntohl(len);
365 *rpcodep = (len >> 24) & 0xFF;
366 len &= 0x1ffff;
367 if (len > SMB_MAXPKTLEN) {
368 SMBERROR("packet too long (%d)\n", len);
369 return EFBIG;
370 }
371 *lenp = len;
372 return 0;
373}
374
375static int
376nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
| 368 error = so->so_proto->pr_usrreqs->pru_soreceive
369 (so, (struct sockaddr **)NULL, &auio,
370 (struct mbuf **)NULL, (struct mbuf **)NULL, &flags);
371 if (error)
372 return error;
373 if (auio.uio_resid > 0) {
374 SMBSDEBUG("short reply\n");
375 return EPIPE;
376 }
377 len = ntohl(len);
378 *rpcodep = (len >> 24) & 0xFF;
379 len &= 0x1ffff;
380 if (len > SMB_MAXPKTLEN) {
381 SMBERROR("packet too long (%d)\n", len);
382 return EFBIG;
383 }
384 *lenp = len;
385 return 0;
386}
387
388static int
389nbssn_recv(struct nbpcb *nbp, struct mbuf **mpp, int *lenp,
|
377 u_int8_t *rpcodep, struct proc *p)
| 390 u_int8_t *rpcodep, struct thread *td)
|
378{
379 struct socket *so = nbp->nbp_tso;
380 struct uio auio;
381 struct mbuf *m;
382 u_int8_t rpcode;
383 int len;
384 int error, rcvflg;
385
386 if (so == NULL)
387 return ENOTCONN;
388
389 if (mpp)
390 *mpp = NULL;
391 for(;;) {
392 m = NULL;
| 391{
392 struct socket *so = nbp->nbp_tso;
393 struct uio auio;
394 struct mbuf *m;
395 u_int8_t rpcode;
396 int len;
397 int error, rcvflg;
398
399 if (so == NULL)
400 return ENOTCONN;
401
402 if (mpp)
403 *mpp = NULL;
404 for(;;) {
405 m = NULL;
|
393 error = nbssn_recvhdr(nbp, &len, &rpcode, MSG_DONTWAIT, p);
| 406 error = nbssn_recvhdr(nbp, &len, &rpcode, MSG_DONTWAIT, td);
|
394 if (so->so_state &
395 (SS_ISDISCONNECTING | SS_ISDISCONNECTED | SS_CANTRCVMORE)) {
396 nbp->nbp_state = NBST_CLOSED;
397 NBDEBUG("session closed by peer\n");
398 return ECONNRESET;
399 }
400 if (error)
401 return error;
402 if (len == 0 && nbp->nbp_state != NBST_SESSION)
403 break;
404 if (rpcode == NB_SSN_KEEPALIVE)
405 continue;
406 bzero(&auio, sizeof(auio));
407 auio.uio_resid = len;
| 407 if (so->so_state &
408 (SS_ISDISCONNECTING | SS_ISDISCONNECTED | SS_CANTRCVMORE)) {
409 nbp->nbp_state = NBST_CLOSED;
410 NBDEBUG("session closed by peer\n");
411 return ECONNRESET;
412 }
413 if (error)
414 return error;
415 if (len == 0 && nbp->nbp_state != NBST_SESSION)
416 break;
417 if (rpcode == NB_SSN_KEEPALIVE)
418 continue;
419 bzero(&auio, sizeof(auio));
420 auio.uio_resid = len;
|
408 auio.uio_procp = p;
| 421 auio.uio_td = td;
|
409 do {
410 rcvflg = MSG_WAITALL;
411 error = so->so_proto->pr_usrreqs->pru_soreceive
412 (so, (struct sockaddr **)NULL,
413 &auio, &m, (struct mbuf **)NULL, &rcvflg);
414 } while (error == EWOULDBLOCK || error == EINTR ||
415 error == ERESTART);
416 if (error)
417 break;
418 if (auio.uio_resid > 0) {
419 SMBERROR("packet is shorter than expected\n");
420 error = EPIPE;
421 break;
422 }
423 if (nbp->nbp_state == NBST_SESSION &&
424 rpcode == NB_SSN_MESSAGE)
425 break;
426 NBDEBUG("non-session packet %x\n", rpcode);
427 if (m)
428 m_freem(m);
429 }
430 if (error) {
431 if (m)
432 m_freem(m);
433 return error;
434 }
435 if (mpp)
436 *mpp = m;
437 else
438 m_freem(m);
439 *lenp = len;
440 *rpcodep = rpcode;
441 return 0;
442}
443
444/*
445 * SMB transport interface
446 */
447static int
| 422 do {
423 rcvflg = MSG_WAITALL;
424 error = so->so_proto->pr_usrreqs->pru_soreceive
425 (so, (struct sockaddr **)NULL,
426 &auio, &m, (struct mbuf **)NULL, &rcvflg);
427 } while (error == EWOULDBLOCK || error == EINTR ||
428 error == ERESTART);
429 if (error)
430 break;
431 if (auio.uio_resid > 0) {
432 SMBERROR("packet is shorter than expected\n");
433 error = EPIPE;
434 break;
435 }
436 if (nbp->nbp_state == NBST_SESSION &&
437 rpcode == NB_SSN_MESSAGE)
438 break;
439 NBDEBUG("non-session packet %x\n", rpcode);
440 if (m)
441 m_freem(m);
442 }
443 if (error) {
444 if (m)
445 m_freem(m);
446 return error;
447 }
448 if (mpp)
449 *mpp = m;
450 else
451 m_freem(m);
452 *lenp = len;
453 *rpcodep = rpcode;
454 return 0;
455}
456
457/*
458 * SMB transport interface
459 */
460static int
|
448smb_nbst_create(struct smb_vc *vcp, struct proc *p)
| 461smb_nbst_create(struct smb_vc *vcp, struct thread *td)
|
449{
450 struct nbpcb *nbp;
451
452 MALLOC(nbp, struct nbpcb *, sizeof *nbp, M_NBDATA, M_WAITOK);
453 bzero(nbp, sizeof *nbp);
454 nbp->nbp_timo.tv_sec = 15; /* XXX: sysctl ? */
455 nbp->nbp_state = NBST_CLOSED;
456 nbp->nbp_vc = vcp;
457 nbp->nbp_sndbuf = smb_tcpsndbuf;
458 nbp->nbp_rcvbuf = smb_tcprcvbuf;
459 vcp->vc_tdata = nbp;
460 return 0;
461}
462
463static int
| 462{
463 struct nbpcb *nbp;
464
465 MALLOC(nbp, struct nbpcb *, sizeof *nbp, M_NBDATA, M_WAITOK);
466 bzero(nbp, sizeof *nbp);
467 nbp->nbp_timo.tv_sec = 15; /* XXX: sysctl ? */
468 nbp->nbp_state = NBST_CLOSED;
469 nbp->nbp_vc = vcp;
470 nbp->nbp_sndbuf = smb_tcpsndbuf;
471 nbp->nbp_rcvbuf = smb_tcprcvbuf;
472 vcp->vc_tdata = nbp;
473 return 0;
474}
475
476static int
|
464smb_nbst_done(struct smb_vc *vcp, struct proc *p)
| 477smb_nbst_done(struct smb_vc *vcp, struct thread *td)
|
465{
466 struct nbpcb *nbp = vcp->vc_tdata;
467
468 if (nbp == NULL)
469 return ENOTCONN;
| 478{
479 struct nbpcb *nbp = vcp->vc_tdata;
480
481 if (nbp == NULL)
482 return ENOTCONN;
|
470 smb_nbst_disconnect(vcp, p);
| 483 smb_nbst_disconnect(vcp, td);
|
471 if (nbp->nbp_laddr)
472 free(nbp->nbp_laddr, M_SONAME);
473 if (nbp->nbp_paddr)
474 free(nbp->nbp_paddr, M_SONAME);
475 free(nbp, M_NBDATA);
476 return 0;
477}
478
479static int
| 484 if (nbp->nbp_laddr)
485 free(nbp->nbp_laddr, M_SONAME);
486 if (nbp->nbp_paddr)
487 free(nbp->nbp_paddr, M_SONAME);
488 free(nbp, M_NBDATA);
489 return 0;
490}
491
492static int
|
480smb_nbst_bind(struct smb_vc *vcp, struct sockaddr *sap, struct proc *p)
| 493smb_nbst_bind(struct smb_vc *vcp, struct sockaddr *sap, struct thread *td)
|
481{
482 struct nbpcb *nbp = vcp->vc_tdata;
483 struct sockaddr_nb *snb;
484 int error, slen;
485
486 NBDEBUG("\n");
487 error = EINVAL;
488 do {
489 if (nbp->nbp_flags & NBF_LOCADDR)
490 break;
491 /*
492 * It is possible to create NETBIOS name in the kernel,
493 * but nothing prevents us to do it in the user space.
494 */
495 if (sap == NULL)
496 break;
497 slen = sap->sa_len;
498 if (slen < NB_MINSALEN)
499 break;
500 snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
501 if (snb == NULL) {
502 error = ENOMEM;
503 break;
504 }
505 nbp->nbp_laddr = snb;
506 nbp->nbp_flags |= NBF_LOCADDR;
507 error = 0;
508 } while(0);
509 return error;
510}
511
512static int
| 494{
495 struct nbpcb *nbp = vcp->vc_tdata;
496 struct sockaddr_nb *snb;
497 int error, slen;
498
499 NBDEBUG("\n");
500 error = EINVAL;
501 do {
502 if (nbp->nbp_flags & NBF_LOCADDR)
503 break;
504 /*
505 * It is possible to create NETBIOS name in the kernel,
506 * but nothing prevents us to do it in the user space.
507 */
508 if (sap == NULL)
509 break;
510 slen = sap->sa_len;
511 if (slen < NB_MINSALEN)
512 break;
513 snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
514 if (snb == NULL) {
515 error = ENOMEM;
516 break;
517 }
518 nbp->nbp_laddr = snb;
519 nbp->nbp_flags |= NBF_LOCADDR;
520 error = 0;
521 } while(0);
522 return error;
523}
524
525static int
|
513smb_nbst_connect(struct smb_vc *vcp, struct sockaddr *sap, struct proc *p)
| 526smb_nbst_connect(struct smb_vc *vcp, struct sockaddr *sap, struct thread *td)
|
514{
515 struct nbpcb *nbp = vcp->vc_tdata;
516 struct sockaddr_in sin;
517 struct sockaddr_nb *snb;
518 struct timespec ts1, ts2;
519 int error, slen;
520
521 NBDEBUG("\n");
522 if (nbp->nbp_tso != NULL)
523 return EISCONN;
524 if (nbp->nbp_laddr == NULL)
525 return EINVAL;
526 slen = sap->sa_len;
527 if (slen < NB_MINSALEN)
528 return EINVAL;
529 if (nbp->nbp_paddr) {
530 free(nbp->nbp_paddr, M_SONAME);
531 nbp->nbp_paddr = NULL;
532 }
533 snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
534 if (snb == NULL)
535 return ENOMEM;
536 nbp->nbp_paddr = snb;
537 sin = snb->snb_addrin;
538 getnanotime(&ts1);
| 527{
528 struct nbpcb *nbp = vcp->vc_tdata;
529 struct sockaddr_in sin;
530 struct sockaddr_nb *snb;
531 struct timespec ts1, ts2;
532 int error, slen;
533
534 NBDEBUG("\n");
535 if (nbp->nbp_tso != NULL)
536 return EISCONN;
537 if (nbp->nbp_laddr == NULL)
538 return EINVAL;
539 slen = sap->sa_len;
540 if (slen < NB_MINSALEN)
541 return EINVAL;
542 if (nbp->nbp_paddr) {
543 free(nbp->nbp_paddr, M_SONAME);
544 nbp->nbp_paddr = NULL;
545 }
546 snb = (struct sockaddr_nb*)dup_sockaddr(sap, 1);
547 if (snb == NULL)
548 return ENOMEM;
549 nbp->nbp_paddr = snb;
550 sin = snb->snb_addrin;
551 getnanotime(&ts1);
|
539 error = nb_connect_in(nbp, &sin, p);
| 552 error = nb_connect_in(nbp, &sin, td);
|
540 if (error)
541 return error;
542 getnanotime(&ts2);
543 timespecsub(&ts2, &ts1);
544 if (ts2.tv_sec == 0 && ts2.tv_sec == 0)
545 ts2.tv_sec = 1;
546 nbp->nbp_timo = ts2;
547 timespecadd(&nbp->nbp_timo, &ts2);
548 timespecadd(&nbp->nbp_timo, &ts2);
549 timespecadd(&nbp->nbp_timo, &ts2); /* * 4 */
| 553 if (error)
554 return error;
555 getnanotime(&ts2);
556 timespecsub(&ts2, &ts1);
557 if (ts2.tv_sec == 0 && ts2.tv_sec == 0)
558 ts2.tv_sec = 1;
559 nbp->nbp_timo = ts2;
560 timespecadd(&nbp->nbp_timo, &ts2);
561 timespecadd(&nbp->nbp_timo, &ts2);
562 timespecadd(&nbp->nbp_timo, &ts2); /* * 4 */
|
550 error = nbssn_rq_request(nbp, p);
| 563 error = nbssn_rq_request(nbp, td);
|
551 if (error)
| 564 if (error)
|
552 smb_nbst_disconnect(vcp, p);
| 565 smb_nbst_disconnect(vcp, td);
|
553 return error;
554}
555
556static int
| 566 return error;
567}
568
569static int
|
557smb_nbst_disconnect(struct smb_vc *vcp, struct proc *p)
| 570smb_nbst_disconnect(struct smb_vc *vcp, struct thread *td)
|
558{
559 struct nbpcb *nbp = vcp->vc_tdata;
560 struct socket *so;
561
562 if (nbp == NULL || nbp->nbp_tso == NULL)
563 return ENOTCONN;
564 if ((so = nbp->nbp_tso) != NULL) {
565 nbp->nbp_flags &= ~NBF_CONNECTED;
566 nbp->nbp_tso = (struct socket *)NULL;
567 soshutdown(so, 2);
568 soclose(so);
569 }
570 if (nbp->nbp_state != NBST_RETARGET) {
571 nbp->nbp_state = NBST_CLOSED;
572 }
573 return 0;
574}
575
576static int
| 571{
572 struct nbpcb *nbp = vcp->vc_tdata;
573 struct socket *so;
574
575 if (nbp == NULL || nbp->nbp_tso == NULL)
576 return ENOTCONN;
577 if ((so = nbp->nbp_tso) != NULL) {
578 nbp->nbp_flags &= ~NBF_CONNECTED;
579 nbp->nbp_tso = (struct socket *)NULL;
580 soshutdown(so, 2);
581 soclose(so);
582 }
583 if (nbp->nbp_state != NBST_RETARGET) {
584 nbp->nbp_state = NBST_CLOSED;
585 }
586 return 0;
587}
588
589static int
|
577smb_nbst_send(struct smb_vc *vcp, struct mbuf *m0, struct proc *p)
| 590smb_nbst_send(struct smb_vc *vcp, struct mbuf *m0, struct thread *td)
|
578{
579 struct nbpcb *nbp = vcp->vc_tdata;
580 int error;
581
582 if (nbp->nbp_state != NBST_SESSION) {
583 error = ENOTCONN;
584 goto abort;
585 }
586 M_PREPEND(m0, 4, M_WAITOK);
587 if (m0 == NULL)
588 return ENOBUFS;
589 nb_sethdr(m0, NB_SSN_MESSAGE, m_fixhdr(m0) - 4);
| 591{
592 struct nbpcb *nbp = vcp->vc_tdata;
593 int error;
594
595 if (nbp->nbp_state != NBST_SESSION) {
596 error = ENOTCONN;
597 goto abort;
598 }
599 M_PREPEND(m0, 4, M_WAITOK);
600 if (m0 == NULL)
601 return ENOBUFS;
602 nb_sethdr(m0, NB_SSN_MESSAGE, m_fixhdr(m0) - 4);
|
590 error = nb_sosend(nbp->nbp_tso, m0, 0, p);
| 603 error = nb_sosend(nbp->nbp_tso, m0, 0, td);
|
591 return error;
592abort:
593 if (m0)
594 m_freem(m0);
595 return error;
596}
597
598
599static int
| 604 return error;
605abort:
606 if (m0)
607 m_freem(m0);
608 return error;
609}
610
611
612static int
|
600smb_nbst_recv(struct smb_vc *vcp, struct mbuf **mpp, struct proc *p)
| 613smb_nbst_recv(struct smb_vc *vcp, struct mbuf **mpp, struct thread *td)
|
601{
602 struct nbpcb *nbp = vcp->vc_tdata;
603 u_int8_t rpcode;
604 int error, rplen;
605
606 nbp->nbp_flags |= NBF_RECVLOCK;
| 614{
615 struct nbpcb *nbp = vcp->vc_tdata;
616 u_int8_t rpcode;
617 int error, rplen;
618
619 nbp->nbp_flags |= NBF_RECVLOCK;
|
607 error = nbssn_recv(nbp, mpp, &rplen, &rpcode, p);
| 620 error = nbssn_recv(nbp, mpp, &rplen, &rpcode, td);
|
608 nbp->nbp_flags &= ~NBF_RECVLOCK;
609 return error;
610}
611
612static void
613smb_nbst_timo(struct smb_vc *vcp)
614{
615 return;
616}
617
618static void
619smb_nbst_intr(struct smb_vc *vcp)
620{
621 struct nbpcb *nbp = vcp->vc_tdata;
622
623 if (nbp == NULL || nbp->nbp_tso == NULL)
624 return;
625 sorwakeup(nbp->nbp_tso);
626 sowwakeup(nbp->nbp_tso);
627}
628
629static int
630smb_nbst_getparam(struct smb_vc *vcp, int param, void *data)
631{
632 struct nbpcb *nbp = vcp->vc_tdata;
633
634 switch (param) {
635 case SMBTP_SNDSZ:
636 *(int*)data = nbp->nbp_sndbuf;
637 break;
638 case SMBTP_RCVSZ:
639 *(int*)data = nbp->nbp_rcvbuf;
640 break;
641 case SMBTP_TIMEOUT:
642 *(struct timespec*)data = nbp->nbp_timo;
643 break;
644 default:
645 return EINVAL;
646 }
647 return 0;
648}
649
650static int
651smb_nbst_setparam(struct smb_vc *vcp, int param, void *data)
652{
653 struct nbpcb *nbp = vcp->vc_tdata;
654
655 switch (param) {
656 case SMBTP_SELECTID:
657 nbp->nbp_selectid = data;
658 break;
659 default:
660 return EINVAL;
661 }
662 return 0;
663}
664
665/*
666 * Check for fatal errors
667 */
668static int
669smb_nbst_fatal(struct smb_vc *vcp, int error)
670{
671 switch (error) {
672 case ENOTCONN:
673 case ENETRESET:
674 case ECONNABORTED:
675 return 1;
676 }
677 return 0;
678}
679
680
681struct smb_tran_desc smb_tran_nbtcp_desc = {
682 SMBT_NBTCP,
683 smb_nbst_create, smb_nbst_done,
684 smb_nbst_bind, smb_nbst_connect, smb_nbst_disconnect,
685 smb_nbst_send, smb_nbst_recv,
686 smb_nbst_timo, smb_nbst_intr,
687 smb_nbst_getparam, smb_nbst_setparam,
688 smb_nbst_fatal
689};
690
| 621 nbp->nbp_flags &= ~NBF_RECVLOCK;
622 return error;
623}
624
625static void
626smb_nbst_timo(struct smb_vc *vcp)
627{
628 return;
629}
630
631static void
632smb_nbst_intr(struct smb_vc *vcp)
633{
634 struct nbpcb *nbp = vcp->vc_tdata;
635
636 if (nbp == NULL || nbp->nbp_tso == NULL)
637 return;
638 sorwakeup(nbp->nbp_tso);
639 sowwakeup(nbp->nbp_tso);
640}
641
642static int
643smb_nbst_getparam(struct smb_vc *vcp, int param, void *data)
644{
645 struct nbpcb *nbp = vcp->vc_tdata;
646
647 switch (param) {
648 case SMBTP_SNDSZ:
649 *(int*)data = nbp->nbp_sndbuf;
650 break;
651 case SMBTP_RCVSZ:
652 *(int*)data = nbp->nbp_rcvbuf;
653 break;
654 case SMBTP_TIMEOUT:
655 *(struct timespec*)data = nbp->nbp_timo;
656 break;
657 default:
658 return EINVAL;
659 }
660 return 0;
661}
662
663static int
664smb_nbst_setparam(struct smb_vc *vcp, int param, void *data)
665{
666 struct nbpcb *nbp = vcp->vc_tdata;
667
668 switch (param) {
669 case SMBTP_SELECTID:
670 nbp->nbp_selectid = data;
671 break;
672 default:
673 return EINVAL;
674 }
675 return 0;
676}
677
678/*
679 * Check for fatal errors
680 */
681static int
682smb_nbst_fatal(struct smb_vc *vcp, int error)
683{
684 switch (error) {
685 case ENOTCONN:
686 case ENETRESET:
687 case ECONNABORTED:
688 return 1;
689 }
690 return 0;
691}
692
693
694struct smb_tran_desc smb_tran_nbtcp_desc = {
695 SMBT_NBTCP,
696 smb_nbst_create, smb_nbst_done,
697 smb_nbst_bind, smb_nbst_connect, smb_nbst_disconnect,
698 smb_nbst_send, smb_nbst_recv,
699 smb_nbst_timo, smb_nbst_intr,
700 smb_nbst_getparam, smb_nbst_setparam,
701 smb_nbst_fatal
702};
703
|