1139823Simp/*- 275374Sbp * Copyright (c) 2000-2001 Boris Popov 375374Sbp * All rights reserved. 475374Sbp * 575374Sbp * Redistribution and use in source and binary forms, with or without 675374Sbp * modification, are permitted provided that the following conditions 775374Sbp * are met: 875374Sbp * 1. Redistributions of source code must retain the above copyright 975374Sbp * notice, this list of conditions and the following disclaimer. 1075374Sbp * 2. Redistributions in binary form must reproduce the above copyright 1175374Sbp * notice, this list of conditions and the following disclaimer in the 1275374Sbp * documentation and/or other materials provided with the distribution. 1375374Sbp * 1475374Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1575374Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1675374Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1775374Sbp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1875374Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1975374Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2075374Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2175374Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2275374Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2375374Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2475374Sbp * SUCH DAMAGE. 2575374Sbp */ 26116189Sobrien 27116189Sobrien#include <sys/cdefs.h> 28116189Sobrien__FBSDID("$FreeBSD$"); 2975374Sbp 3075374Sbp#include <sys/param.h> 3175374Sbp#include <sys/systm.h> 3295533Smike#include <sys/endian.h> 3375374Sbp#include <sys/proc.h> 3475374Sbp#include <sys/kernel.h> 3575374Sbp#include <sys/kthread.h> 3675374Sbp#include <sys/malloc.h> 3775374Sbp#include <sys/mbuf.h> 3875374Sbp#include <sys/unistd.h> 3975374Sbp 4075374Sbp#include <netsmb/smb.h> 4175374Sbp#include <netsmb/smb_conn.h> 4275374Sbp#include <netsmb/smb_rq.h> 4375374Sbp#include <netsmb/smb_tran.h> 4475374Sbp#include <netsmb/smb_trantcp.h> 4575374Sbp 4675374Sbp 4775374Sbp#define SMBIOD_SLEEP_TIMO 2 4875374Sbp#define SMBIOD_PING_TIMO 60 /* seconds */ 4975374Sbp 5075374Sbp#define SMB_IOD_EVLOCKPTR(iod) (&((iod)->iod_evlock)) 5175374Sbp#define SMB_IOD_EVLOCK(iod) smb_sl_lock(&((iod)->iod_evlock)) 5275374Sbp#define SMB_IOD_EVUNLOCK(iod) smb_sl_unlock(&((iod)->iod_evlock)) 5375374Sbp 5475374Sbp#define SMB_IOD_RQLOCKPTR(iod) (&((iod)->iod_rqlock)) 5575374Sbp#define SMB_IOD_RQLOCK(iod) smb_sl_lock(&((iod)->iod_rqlock)) 5675374Sbp#define SMB_IOD_RQUNLOCK(iod) smb_sl_unlock(&((iod)->iod_rqlock)) 5775374Sbp 5875374Sbp#define smb_iod_wakeup(iod) wakeup(&(iod)->iod_flags) 5975374Sbp 6075374Sbp 6175374Sbpstatic MALLOC_DEFINE(M_SMBIOD, "SMBIOD", "SMB network io daemon"); 6275374Sbp 6375374Sbpstatic int smb_iod_next; 6475374Sbp 6575374Sbpstatic int smb_iod_sendall(struct smbiod *iod); 6675374Sbpstatic int smb_iod_disconnect(struct smbiod *iod); 6775374Sbpstatic void smb_iod_thread(void *); 6875374Sbp 6975374Sbpstatic __inline void 7075374Sbpsmb_iod_rqprocessed(struct smb_rq *rqp, int error) 7175374Sbp{ 7275374Sbp SMBRQ_SLOCK(rqp); 7375374Sbp rqp->sr_lerror = error; 7475374Sbp rqp->sr_rpgen++; 7575374Sbp rqp->sr_state = SMBRQ_NOTIFIED; 7675374Sbp wakeup(&rqp->sr_state); 7775374Sbp SMBRQ_SUNLOCK(rqp); 7875374Sbp} 7975374Sbp 8075374Sbpstatic void 8175374Sbpsmb_iod_invrq(struct smbiod *iod) 8275374Sbp{ 8375374Sbp struct smb_rq *rqp; 8475374Sbp 8575374Sbp /* 8682045Sbp * Invalidate all outstanding requests for this connection 8775374Sbp */ 8875374Sbp SMB_IOD_RQLOCK(iod); 8975374Sbp TAILQ_FOREACH(rqp, &iod->iod_rqlist, sr_link) { 9075374Sbp if (rqp->sr_flags & SMBR_INTERNAL) 9175374Sbp SMBRQ_SUNLOCK(rqp); 9275374Sbp rqp->sr_flags |= SMBR_RESTART; 9375374Sbp smb_iod_rqprocessed(rqp, ENOTCONN); 9475374Sbp } 9575374Sbp SMB_IOD_RQUNLOCK(iod); 9675374Sbp} 9775374Sbp 9875374Sbpstatic void 9975374Sbpsmb_iod_closetran(struct smbiod *iod) 10075374Sbp{ 10175374Sbp struct smb_vc *vcp = iod->iod_vc; 10287192Sbp struct thread *td = iod->iod_td; 10375374Sbp 10475374Sbp if (vcp->vc_tdata == NULL) 10575374Sbp return; 10687192Sbp SMB_TRAN_DISCONNECT(vcp, td); 10787192Sbp SMB_TRAN_DONE(vcp, td); 10875374Sbp vcp->vc_tdata = NULL; 10975374Sbp} 11075374Sbp 11175374Sbpstatic void 11275374Sbpsmb_iod_dead(struct smbiod *iod) 11375374Sbp{ 11475374Sbp iod->iod_state = SMBIOD_ST_DEAD; 11575374Sbp smb_iod_closetran(iod); 11675374Sbp smb_iod_invrq(iod); 11775374Sbp} 11875374Sbp 11975374Sbpstatic int 12075374Sbpsmb_iod_connect(struct smbiod *iod) 12175374Sbp{ 12275374Sbp struct smb_vc *vcp = iod->iod_vc; 12387192Sbp struct thread *td = iod->iod_td; 12475374Sbp int error; 12575374Sbp 12675374Sbp SMBIODEBUG("%d\n", iod->iod_state); 12775374Sbp switch(iod->iod_state) { 12875374Sbp case SMBIOD_ST_VCACTIVE: 12975374Sbp SMBERROR("called for already opened connection\n"); 13075374Sbp return EISCONN; 13175374Sbp case SMBIOD_ST_DEAD: 13275374Sbp return ENOTCONN; /* XXX: last error code ? */ 13375374Sbp default: 13475374Sbp break; 13575374Sbp } 13675374Sbp vcp->vc_genid++; 13775374Sbp error = 0; 138119376Smarcel 139119376Smarcel error = (int)SMB_TRAN_CREATE(vcp, td); 140119376Smarcel if (error) 141119376Smarcel goto fail; 142119376Smarcel SMBIODEBUG("tcreate\n"); 143119376Smarcel if (vcp->vc_laddr) { 144119376Smarcel error = (int)SMB_TRAN_BIND(vcp, vcp->vc_laddr, td); 145119376Smarcel if (error) 146119376Smarcel goto fail; 147119376Smarcel } 148119376Smarcel SMBIODEBUG("tbind\n"); 149119376Smarcel error = (int)SMB_TRAN_CONNECT(vcp, vcp->vc_paddr, td); 150119376Smarcel if (error) 151119376Smarcel goto fail; 152119376Smarcel SMB_TRAN_SETPARAM(vcp, SMBTP_SELECTID, &iod->iod_flags); 153119376Smarcel iod->iod_state = SMBIOD_ST_TRANACTIVE; 154119376Smarcel SMBIODEBUG("tconnect\n"); 155119376Smarcel /* vcp->vc_mid = 0;*/ 156119376Smarcel error = (int)smb_smb_negotiate(vcp, &iod->iod_scred); 157119376Smarcel if (error) 158119376Smarcel goto fail; 159119376Smarcel SMBIODEBUG("snegotiate\n"); 160119376Smarcel error = (int)smb_smb_ssnsetup(vcp, &iod->iod_scred); 161119376Smarcel if (error) 162119376Smarcel goto fail; 163119376Smarcel iod->iod_state = SMBIOD_ST_VCACTIVE; 164119376Smarcel SMBIODEBUG("completed\n"); 165119376Smarcel smb_iod_invrq(iod); 166119376Smarcel return (0); 167119376Smarcel 168119376Smarcel fail: 169119376Smarcel smb_iod_dead(iod); 170119376Smarcel return (error); 17175374Sbp} 17275374Sbp 17375374Sbpstatic int 17475374Sbpsmb_iod_disconnect(struct smbiod *iod) 17575374Sbp{ 17675374Sbp struct smb_vc *vcp = iod->iod_vc; 17775374Sbp 17875374Sbp SMBIODEBUG("\n"); 17975374Sbp if (iod->iod_state == SMBIOD_ST_VCACTIVE) { 18075374Sbp smb_smb_ssnclose(vcp, &iod->iod_scred); 18175374Sbp iod->iod_state = SMBIOD_ST_TRANACTIVE; 18275374Sbp } 18375374Sbp vcp->vc_smbuid = SMB_UID_UNKNOWN; 18475374Sbp smb_iod_closetran(iod); 18575374Sbp iod->iod_state = SMBIOD_ST_NOTCONN; 18675374Sbp return 0; 18775374Sbp} 18875374Sbp 18975374Sbpstatic int 19075374Sbpsmb_iod_treeconnect(struct smbiod *iod, struct smb_share *ssp) 19175374Sbp{ 19275374Sbp int error; 19375374Sbp 19475374Sbp if (iod->iod_state != SMBIOD_ST_VCACTIVE) { 19575374Sbp if (iod->iod_state != SMBIOD_ST_DEAD) 19675374Sbp return ENOTCONN; 19775374Sbp iod->iod_state = SMBIOD_ST_RECONNECT; 19875374Sbp error = smb_iod_connect(iod); 19975374Sbp if (error) 20075374Sbp return error; 20175374Sbp } 20275374Sbp SMBIODEBUG("tree reconnect\n"); 20375374Sbp SMBS_ST_LOCK(ssp); 20475374Sbp ssp->ss_flags |= SMBS_RECONNECTING; 20575374Sbp SMBS_ST_UNLOCK(ssp); 20675374Sbp error = smb_smb_treeconnect(ssp, &iod->iod_scred); 20775374Sbp SMBS_ST_LOCK(ssp); 20875374Sbp ssp->ss_flags &= ~SMBS_RECONNECTING; 20975374Sbp SMBS_ST_UNLOCK(ssp); 21075374Sbp wakeup(&ssp->ss_vcgenid); 21175374Sbp return error; 21275374Sbp} 21375374Sbp 21475374Sbpstatic int 21575374Sbpsmb_iod_sendrq(struct smbiod *iod, struct smb_rq *rqp) 21675374Sbp{ 21787192Sbp struct thread *td = iod->iod_td; 21875374Sbp struct smb_vc *vcp = iod->iod_vc; 21975374Sbp struct smb_share *ssp = rqp->sr_share; 22075374Sbp struct mbuf *m; 22175374Sbp int error; 22275374Sbp 22375374Sbp SMBIODEBUG("iod_state = %d\n", iod->iod_state); 22475374Sbp switch (iod->iod_state) { 22575374Sbp case SMBIOD_ST_NOTCONN: 22675374Sbp smb_iod_rqprocessed(rqp, ENOTCONN); 22775374Sbp return 0; 22875374Sbp case SMBIOD_ST_DEAD: 22975374Sbp iod->iod_state = SMBIOD_ST_RECONNECT; 23075374Sbp return 0; 23175374Sbp case SMBIOD_ST_RECONNECT: 23275374Sbp return 0; 23375374Sbp default: 23475374Sbp break; 23575374Sbp } 23675374Sbp if (rqp->sr_sendcnt == 0) { 23775374Sbp#ifdef movedtoanotherplace 23875374Sbp if (vcp->vc_maxmux != 0 && iod->iod_muxcnt >= vcp->vc_maxmux) 23975374Sbp return 0; 24075374Sbp#endif 241161523Smarcel le16enc(rqp->sr_rqtid, ssp ? ssp->ss_tid : SMB_TID_UNKNOWN); 242161523Smarcel le16enc(rqp->sr_rquid, vcp ? vcp->vc_smbuid : 0); 24375374Sbp mb_fixhdr(&rqp->sr_rq); 244124087Stjr if (vcp->vc_hflags2 & SMB_FLAGS2_SECURITY_SIGNATURE) 245124087Stjr smb_rq_sign(rqp); 24675374Sbp } 24775374Sbp if (rqp->sr_sendcnt++ > 5) { 24875374Sbp rqp->sr_flags |= SMBR_RESTART; 24975374Sbp smb_iod_rqprocessed(rqp, rqp->sr_lerror); 25075374Sbp /* 25175374Sbp * If all attempts to send a request failed, then 25275374Sbp * something is seriously hosed. 25375374Sbp */ 25475374Sbp return ENOTCONN; 25575374Sbp } 25675374Sbp SMBSDEBUG("M:%04x, P:%04x, U:%04x, T:%04x\n", rqp->sr_mid, 0, 0, 0); 25775374Sbp m_dumpm(rqp->sr_rq.mb_top); 258243882Sglebius m = m_copym(rqp->sr_rq.mb_top, 0, M_COPYALL, M_WAITOK); 259177599Sru error = rqp->sr_lerror = SMB_TRAN_SEND(vcp, m, td); 26075374Sbp if (error == 0) { 26175374Sbp getnanotime(&rqp->sr_timesent); 26275374Sbp iod->iod_lastrqsent = rqp->sr_timesent; 26375374Sbp rqp->sr_flags |= SMBR_SENT; 26475374Sbp rqp->sr_state = SMBRQ_SENT; 26575374Sbp return 0; 26675374Sbp } 26775374Sbp /* 26875374Sbp * Check for fatal errors 26975374Sbp */ 27075374Sbp if (SMB_TRAN_FATAL(vcp, error)) { 27175374Sbp /* 27275374Sbp * No further attempts should be made 27375374Sbp */ 27475374Sbp return ENOTCONN; 27575374Sbp } 27675374Sbp if (smb_rq_intr(rqp)) 27775374Sbp smb_iod_rqprocessed(rqp, EINTR); 27875374Sbp return 0; 27975374Sbp} 28075374Sbp 28175374Sbp/* 28275374Sbp * Process incoming packets 28375374Sbp */ 28475374Sbpstatic int 28575374Sbpsmb_iod_recvall(struct smbiod *iod) 28675374Sbp{ 28775374Sbp struct smb_vc *vcp = iod->iod_vc; 28887192Sbp struct thread *td = iod->iod_td; 28975374Sbp struct smb_rq *rqp; 29075374Sbp struct mbuf *m; 29175374Sbp u_char *hp; 29275374Sbp u_short mid; 29375374Sbp int error; 29475374Sbp 29575374Sbp switch (iod->iod_state) { 29675374Sbp case SMBIOD_ST_NOTCONN: 29775374Sbp case SMBIOD_ST_DEAD: 29875374Sbp case SMBIOD_ST_RECONNECT: 29975374Sbp return 0; 30075374Sbp default: 30175374Sbp break; 30275374Sbp } 30375374Sbp for (;;) { 30475374Sbp m = NULL; 30587192Sbp error = SMB_TRAN_RECV(vcp, &m, td); 30675374Sbp if (error == EWOULDBLOCK) 30775374Sbp break; 30875374Sbp if (SMB_TRAN_FATAL(vcp, error)) { 30975374Sbp smb_iod_dead(iod); 31075374Sbp break; 31175374Sbp } 31275374Sbp if (error) 31375374Sbp break; 31475374Sbp if (m == NULL) { 31575374Sbp SMBERROR("tran return NULL without error\n"); 31675374Sbp error = EPIPE; 31775374Sbp continue; 31875374Sbp } 31975374Sbp m = m_pullup(m, SMB_HDRLEN); 32075374Sbp if (m == NULL) 32175374Sbp continue; /* wait for a good packet */ 32275374Sbp /* 32375374Sbp * Now we got an entire and possibly invalid SMB packet. 32475374Sbp * Be careful while parsing it. 32575374Sbp */ 32675374Sbp m_dumpm(m); 32775374Sbp hp = mtod(m, u_char*); 32875374Sbp if (bcmp(hp, SMB_SIGNATURE, SMB_SIGLEN) != 0) { 32975374Sbp m_freem(m); 33075374Sbp continue; 33175374Sbp } 33275374Sbp mid = SMB_HDRMID(hp); 33375374Sbp SMBSDEBUG("mid %04x\n", (u_int)mid); 33475374Sbp SMB_IOD_RQLOCK(iod); 33575374Sbp TAILQ_FOREACH(rqp, &iod->iod_rqlist, sr_link) { 33675374Sbp if (rqp->sr_mid != mid) 33775374Sbp continue; 33875374Sbp SMBRQ_SLOCK(rqp); 33975374Sbp if (rqp->sr_rp.md_top == NULL) { 34075374Sbp md_initm(&rqp->sr_rp, m); 34175374Sbp } else { 34275374Sbp if (rqp->sr_flags & SMBR_MULTIPACKET) { 34375374Sbp md_append_record(&rqp->sr_rp, m); 34475374Sbp } else { 34575374Sbp SMBRQ_SUNLOCK(rqp); 34675374Sbp SMBERROR("duplicate response %d (ignored)\n", mid); 34775374Sbp break; 34875374Sbp } 34975374Sbp } 35075374Sbp SMBRQ_SUNLOCK(rqp); 35175374Sbp smb_iod_rqprocessed(rqp, 0); 35275374Sbp break; 35375374Sbp } 35475374Sbp SMB_IOD_RQUNLOCK(iod); 35575374Sbp if (rqp == NULL) { 35675374Sbp SMBERROR("drop resp with mid %d\n", (u_int)mid); 35775374Sbp/* smb_printrqlist(vcp);*/ 35875374Sbp m_freem(m); 35975374Sbp } 36075374Sbp } 36175374Sbp /* 36275374Sbp * check for interrupts 36375374Sbp */ 36475374Sbp SMB_IOD_RQLOCK(iod); 36575374Sbp TAILQ_FOREACH(rqp, &iod->iod_rqlist, sr_link) { 366112888Sjeff if (smb_td_intr(rqp->sr_cred->scr_td)) { 36775374Sbp smb_iod_rqprocessed(rqp, EINTR); 36875374Sbp } 36975374Sbp } 37075374Sbp SMB_IOD_RQUNLOCK(iod); 37175374Sbp return 0; 37275374Sbp} 37375374Sbp 37475374Sbpint 37575374Sbpsmb_iod_request(struct smbiod *iod, int event, void *ident) 37675374Sbp{ 37775374Sbp struct smbiod_event *evp; 37875374Sbp int error; 37975374Sbp 38075374Sbp SMBIODEBUG("\n"); 381111119Simp evp = smb_zmalloc(sizeof(*evp), M_SMBIOD, M_WAITOK); 38275374Sbp evp->ev_type = event; 38375374Sbp evp->ev_ident = ident; 38475374Sbp SMB_IOD_EVLOCK(iod); 38575374Sbp STAILQ_INSERT_TAIL(&iod->iod_evlist, evp, ev_link); 38675374Sbp if ((event & SMBIOD_EV_SYNC) == 0) { 38775374Sbp SMB_IOD_EVUNLOCK(iod); 38875374Sbp smb_iod_wakeup(iod); 38975374Sbp return 0; 39075374Sbp } 39175374Sbp smb_iod_wakeup(iod); 39275374Sbp msleep(evp, SMB_IOD_EVLOCKPTR(iod), PWAIT | PDROP, "90evw", 0); 39375374Sbp error = evp->ev_error; 39475374Sbp free(evp, M_SMBIOD); 39575374Sbp return error; 39675374Sbp} 39775374Sbp 39875374Sbp/* 39975374Sbp * Place request in the queue. 40075374Sbp * Request from smbiod have a high priority. 40175374Sbp */ 40275374Sbpint 40375374Sbpsmb_iod_addrq(struct smb_rq *rqp) 40475374Sbp{ 40575374Sbp struct smb_vc *vcp = rqp->sr_vc; 40675374Sbp struct smbiod *iod = vcp->vc_iod; 40775374Sbp int error; 40875374Sbp 40975374Sbp SMBIODEBUG("\n"); 410116339Stjr if (rqp->sr_cred->scr_td != NULL && 411116339Stjr rqp->sr_cred->scr_td->td_proc == iod->iod_p) { 41275374Sbp rqp->sr_flags |= SMBR_INTERNAL; 41375374Sbp SMB_IOD_RQLOCK(iod); 41475374Sbp TAILQ_INSERT_HEAD(&iod->iod_rqlist, rqp, sr_link); 41575374Sbp SMB_IOD_RQUNLOCK(iod); 41675374Sbp for (;;) { 41775374Sbp if (smb_iod_sendrq(iod, rqp) != 0) { 41875374Sbp smb_iod_dead(iod); 41975374Sbp break; 42075374Sbp } 42175374Sbp /* 42275374Sbp * we don't need to lock state field here 42375374Sbp */ 42475374Sbp if (rqp->sr_state != SMBRQ_NOTSENT) 42575374Sbp break; 42675374Sbp tsleep(&iod->iod_flags, PWAIT, "90sndw", hz); 42775374Sbp } 42875374Sbp if (rqp->sr_lerror) 42975374Sbp smb_iod_removerq(rqp); 43075374Sbp return rqp->sr_lerror; 43175374Sbp } 43275374Sbp 43375374Sbp switch (iod->iod_state) { 43475374Sbp case SMBIOD_ST_NOTCONN: 43575374Sbp return ENOTCONN; 43675374Sbp case SMBIOD_ST_DEAD: 43775374Sbp error = smb_iod_request(vcp->vc_iod, SMBIOD_EV_CONNECT | SMBIOD_EV_SYNC, NULL); 43875374Sbp if (error) 43975374Sbp return error; 44075374Sbp return EXDEV; 44175374Sbp default: 44275374Sbp break; 44375374Sbp } 44475374Sbp 44575374Sbp SMB_IOD_RQLOCK(iod); 44675374Sbp for (;;) { 44775374Sbp if (vcp->vc_maxmux == 0) { 44875374Sbp SMBERROR("maxmux == 0\n"); 44975374Sbp break; 45075374Sbp } 45175374Sbp if (iod->iod_muxcnt < vcp->vc_maxmux) 45275374Sbp break; 45375374Sbp iod->iod_muxwant++; 45475374Sbp msleep(&iod->iod_muxwant, SMB_IOD_RQLOCKPTR(iod), 45575374Sbp PWAIT, "90mux", 0); 45675374Sbp } 45775374Sbp iod->iod_muxcnt++; 45875374Sbp TAILQ_INSERT_TAIL(&iod->iod_rqlist, rqp, sr_link); 45975374Sbp SMB_IOD_RQUNLOCK(iod); 46075374Sbp smb_iod_wakeup(iod); 46175374Sbp return 0; 46275374Sbp} 46375374Sbp 46475374Sbpint 46575374Sbpsmb_iod_removerq(struct smb_rq *rqp) 46675374Sbp{ 46775374Sbp struct smb_vc *vcp = rqp->sr_vc; 46875374Sbp struct smbiod *iod = vcp->vc_iod; 46975374Sbp 47075374Sbp SMBIODEBUG("\n"); 47175374Sbp if (rqp->sr_flags & SMBR_INTERNAL) { 47275374Sbp SMB_IOD_RQLOCK(iod); 47375374Sbp TAILQ_REMOVE(&iod->iod_rqlist, rqp, sr_link); 47475374Sbp SMB_IOD_RQUNLOCK(iod); 47575374Sbp return 0; 47675374Sbp } 47775374Sbp SMB_IOD_RQLOCK(iod); 47875374Sbp while (rqp->sr_flags & SMBR_XLOCK) { 47975374Sbp rqp->sr_flags |= SMBR_XLOCKWANT; 48075374Sbp msleep(rqp, SMB_IOD_RQLOCKPTR(iod), PWAIT, "90xrm", 0); 48175374Sbp } 48275374Sbp TAILQ_REMOVE(&iod->iod_rqlist, rqp, sr_link); 48375374Sbp iod->iod_muxcnt--; 48475374Sbp if (iod->iod_muxwant) { 48575374Sbp iod->iod_muxwant--; 48675374Sbp wakeup(&iod->iod_muxwant); 48775374Sbp } 48875374Sbp SMB_IOD_RQUNLOCK(iod); 48975374Sbp return 0; 49075374Sbp} 49175374Sbp 49275374Sbpint 49375374Sbpsmb_iod_waitrq(struct smb_rq *rqp) 49475374Sbp{ 49575374Sbp struct smbiod *iod = rqp->sr_vc->vc_iod; 49675374Sbp int error; 49775374Sbp 49875374Sbp SMBIODEBUG("\n"); 49975374Sbp if (rqp->sr_flags & SMBR_INTERNAL) { 50075374Sbp for (;;) { 50175374Sbp smb_iod_sendall(iod); 50275374Sbp smb_iod_recvall(iod); 50375374Sbp if (rqp->sr_rpgen != rqp->sr_rplast) 50475374Sbp break; 50575374Sbp tsleep(&iod->iod_flags, PWAIT, "90irq", hz); 50675374Sbp } 50775374Sbp smb_iod_removerq(rqp); 50875374Sbp return rqp->sr_lerror; 50975374Sbp 51075374Sbp } 51175374Sbp SMBRQ_SLOCK(rqp); 51275374Sbp if (rqp->sr_rpgen == rqp->sr_rplast) 51375374Sbp msleep(&rqp->sr_state, SMBRQ_SLOCKPTR(rqp), PWAIT, "90wrq", 0); 51475374Sbp rqp->sr_rplast++; 51575374Sbp SMBRQ_SUNLOCK(rqp); 51675374Sbp error = rqp->sr_lerror; 51775374Sbp if (rqp->sr_flags & SMBR_MULTIPACKET) { 51875374Sbp /* 51975374Sbp * If request should stay in the list, then reinsert it 52075374Sbp * at the end of queue so other waiters have chance to concur 52175374Sbp */ 52275374Sbp SMB_IOD_RQLOCK(iod); 52375374Sbp TAILQ_REMOVE(&iod->iod_rqlist, rqp, sr_link); 52475374Sbp TAILQ_INSERT_TAIL(&iod->iod_rqlist, rqp, sr_link); 52575374Sbp SMB_IOD_RQUNLOCK(iod); 52675374Sbp } else 52775374Sbp smb_iod_removerq(rqp); 52875374Sbp return error; 52975374Sbp} 53075374Sbp 53175374Sbp 53275374Sbpstatic int 53375374Sbpsmb_iod_sendall(struct smbiod *iod) 53475374Sbp{ 53575374Sbp struct smb_vc *vcp = iod->iod_vc; 53675374Sbp struct smb_rq *rqp; 53775374Sbp struct timespec ts, tstimeout; 53875374Sbp int herror; 53975374Sbp 54075374Sbp herror = 0; 54175374Sbp /* 54275374Sbp * Loop through the list of requests and send them if possible 54375374Sbp */ 54475374Sbp SMB_IOD_RQLOCK(iod); 54575374Sbp TAILQ_FOREACH(rqp, &iod->iod_rqlist, sr_link) { 54675374Sbp switch (rqp->sr_state) { 54775374Sbp case SMBRQ_NOTSENT: 54875374Sbp rqp->sr_flags |= SMBR_XLOCK; 54975374Sbp SMB_IOD_RQUNLOCK(iod); 55075374Sbp herror = smb_iod_sendrq(iod, rqp); 55175374Sbp SMB_IOD_RQLOCK(iod); 55275374Sbp rqp->sr_flags &= ~SMBR_XLOCK; 55375374Sbp if (rqp->sr_flags & SMBR_XLOCKWANT) { 55475374Sbp rqp->sr_flags &= ~SMBR_XLOCKWANT; 55575374Sbp wakeup(rqp); 55675374Sbp } 55775374Sbp break; 55875374Sbp case SMBRQ_SENT: 55975374Sbp SMB_TRAN_GETPARAM(vcp, SMBTP_TIMEOUT, &tstimeout); 56075374Sbp timespecadd(&tstimeout, &tstimeout); 56175374Sbp getnanotime(&ts); 56275374Sbp timespecsub(&ts, &tstimeout); 56375374Sbp if (timespeccmp(&ts, &rqp->sr_timesent, >)) { 56475374Sbp smb_iod_rqprocessed(rqp, ETIMEDOUT); 56575374Sbp } 56675374Sbp break; 56775374Sbp default: 56897209Speter break; 56975374Sbp } 57075374Sbp if (herror) 57175374Sbp break; 57275374Sbp } 57375374Sbp SMB_IOD_RQUNLOCK(iod); 57475374Sbp if (herror == ENOTCONN) 57575374Sbp smb_iod_dead(iod); 57675374Sbp return 0; 57775374Sbp} 57875374Sbp 57975374Sbp/* 58075374Sbp * "main" function for smbiod daemon 58175374Sbp */ 58275374Sbpstatic __inline void 58375374Sbpsmb_iod_main(struct smbiod *iod) 58475374Sbp{ 58575374Sbp/* struct smb_vc *vcp = iod->iod_vc;*/ 58675374Sbp struct smbiod_event *evp; 58775374Sbp/* struct timespec tsnow;*/ 58875374Sbp int error; 58975374Sbp 59075374Sbp SMBIODEBUG("\n"); 59175374Sbp error = 0; 59275374Sbp 59375374Sbp /* 59475374Sbp * Check all interesting events 59575374Sbp */ 59675374Sbp for (;;) { 59775374Sbp SMB_IOD_EVLOCK(iod); 59875374Sbp evp = STAILQ_FIRST(&iod->iod_evlist); 59975374Sbp if (evp == NULL) { 60075374Sbp SMB_IOD_EVUNLOCK(iod); 60175374Sbp break; 60275374Sbp } 60375374Sbp STAILQ_REMOVE_HEAD(&iod->iod_evlist, ev_link); 60475374Sbp evp->ev_type |= SMBIOD_EV_PROCESSING; 60575374Sbp SMB_IOD_EVUNLOCK(iod); 60675374Sbp switch (evp->ev_type & SMBIOD_EV_MASK) { 60775374Sbp case SMBIOD_EV_CONNECT: 60875374Sbp iod->iod_state = SMBIOD_ST_RECONNECT; 60975374Sbp evp->ev_error = smb_iod_connect(iod); 61075374Sbp break; 61175374Sbp case SMBIOD_EV_DISCONNECT: 61275374Sbp evp->ev_error = smb_iod_disconnect(iod); 61375374Sbp break; 61475374Sbp case SMBIOD_EV_TREECONNECT: 61575374Sbp evp->ev_error = smb_iod_treeconnect(iod, evp->ev_ident); 61675374Sbp break; 61775374Sbp case SMBIOD_EV_SHUTDOWN: 61875374Sbp iod->iod_flags |= SMBIOD_SHUTDOWN; 61975374Sbp break; 62075374Sbp case SMBIOD_EV_NEWRQ: 62175374Sbp break; 62275374Sbp } 62375374Sbp if (evp->ev_type & SMBIOD_EV_SYNC) { 62475374Sbp SMB_IOD_EVLOCK(iod); 62575374Sbp wakeup(evp); 62675374Sbp SMB_IOD_EVUNLOCK(iod); 62775374Sbp } else 62875374Sbp free(evp, M_SMBIOD); 62975374Sbp } 63075374Sbp#if 0 63175374Sbp if (iod->iod_state == SMBIOD_ST_VCACTIVE) { 63275374Sbp getnanotime(&tsnow); 63375374Sbp timespecsub(&tsnow, &iod->iod_pingtimo); 63475374Sbp if (timespeccmp(&tsnow, &iod->iod_lastrqsent, >)) { 63575374Sbp smb_smb_echo(vcp, &iod->iod_scred); 63675374Sbp } 63775374Sbp } 63875374Sbp#endif 63975374Sbp smb_iod_sendall(iod); 64075374Sbp smb_iod_recvall(iod); 64175374Sbp return; 64275374Sbp} 64375374Sbp 64475374Sbpvoid 64575374Sbpsmb_iod_thread(void *arg) 64675374Sbp{ 64775374Sbp struct smbiod *iod = arg; 64875374Sbp 649177654Sattilio mtx_lock(&Giant); 650177654Sattilio 65187192Sbp /* 65287192Sbp * Here we assume that the thread structure will be the same 65387192Sbp * for an entire kthread (kproc, to be more precise) life. 65487192Sbp */ 65587192Sbp iod->iod_td = curthread; 65687192Sbp smb_makescred(&iod->iod_scred, iod->iod_td, NULL); 65775374Sbp while ((iod->iod_flags & SMBIOD_SHUTDOWN) == 0) { 65875374Sbp smb_iod_main(iod); 65975374Sbp SMBIODEBUG("going to sleep for %d ticks\n", iod->iod_sleeptimo); 66075374Sbp if (iod->iod_flags & SMBIOD_SHUTDOWN) 66175374Sbp break; 66275374Sbp tsleep(&iod->iod_flags, PWAIT, "90idle", iod->iod_sleeptimo); 66375374Sbp } 664177654Sattilio mtx_unlock(&Giant); 665172836Sjulian kproc_exit(0); 66675374Sbp} 66775374Sbp 66875374Sbpint 66975374Sbpsmb_iod_create(struct smb_vc *vcp) 67075374Sbp{ 67175374Sbp struct smbiod *iod; 67275374Sbp int error; 67375374Sbp 674111119Simp iod = smb_zmalloc(sizeof(*iod), M_SMBIOD, M_WAITOK); 67575374Sbp iod->iod_id = smb_iod_next++; 67675374Sbp iod->iod_state = SMBIOD_ST_NOTCONN; 67775374Sbp iod->iod_vc = vcp; 67875374Sbp iod->iod_sleeptimo = hz * SMBIOD_SLEEP_TIMO; 67975374Sbp iod->iod_pingtimo.tv_sec = SMBIOD_PING_TIMO; 68075374Sbp getnanotime(&iod->iod_lastrqsent); 68175374Sbp vcp->vc_iod = iod; 68275374Sbp smb_sl_init(&iod->iod_rqlock, "90rql"); 68375374Sbp TAILQ_INIT(&iod->iod_rqlist); 68475374Sbp smb_sl_init(&iod->iod_evlock, "90evl"); 68575374Sbp STAILQ_INIT(&iod->iod_evlist); 686172836Sjulian error = kproc_create(smb_iod_thread, iod, &iod->iod_p, 687104354Sscottl RFNOWAIT, 0, "smbiod%d", iod->iod_id); 68875374Sbp if (error) { 68975374Sbp SMBERROR("can't start smbiod: %d", error); 69075374Sbp free(iod, M_SMBIOD); 69175374Sbp return error; 69275374Sbp } 69375374Sbp return 0; 69475374Sbp} 69575374Sbp 69675374Sbpint 69775374Sbpsmb_iod_destroy(struct smbiod *iod) 69875374Sbp{ 69975374Sbp smb_iod_request(iod, SMBIOD_EV_SHUTDOWN | SMBIOD_EV_SYNC, NULL); 70082045Sbp smb_sl_destroy(&iod->iod_rqlock); 70182045Sbp smb_sl_destroy(&iod->iod_evlock); 70275374Sbp free(iod, M_SMBIOD); 70375374Sbp return 0; 70475374Sbp} 70575374Sbp 70675374Sbpint 70775374Sbpsmb_iod_init(void) 70875374Sbp{ 70975374Sbp return 0; 71075374Sbp} 71175374Sbp 71275374Sbpint 71375374Sbpsmb_iod_done(void) 71475374Sbp{ 71575374Sbp return 0; 71675374Sbp} 71775374Sbp 718