-/*
- * ppp.c - STREAMS multiplexing pseudo-device driver for PPP.
- *
- * Copyright (c) 1994 The Australian National University.
- * All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation is hereby granted, provided that the above copyright
- * notice appears in all copies. This software is provided without any
- * warranty, express or implied. The Australian National University
- * makes no representations about the suitability of this software for
- * any purpose.
- *
- * IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
- * PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
- * THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
- * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
- * OR MODIFICATIONS.
- *
- * $Id: ppp.c,v 1.7 1995/10/27 03:55:56 paulus Exp $
- */
-
-/*
- * This file is used under Solaris 2.
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <sys/stream.h>
-#include <sys/stropts.h>
-#include <sys/errno.h>
-#include <sys/cmn_err.h>
-#include <sys/conf.h>
-#include <sys/dlpi.h>
-#include <sys/ioccom.h>
-#include <sys/kmem.h>
-#include <sys/ddi.h>
-#ifdef sun
-#include <sys/modctl.h>
-#include <sys/kstat.h>
-#include <sys/sunddi.h>
-#else
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <net/if.h>
-#include <netinet/in.h>
-#endif
-#include <net/ppp_defs.h>
-#include <net/pppio.h>
-
-#ifdef __STDC__
-#define __P(x) x
-#else
-#define __P(x) ()
-#endif
-
-/*
- * The IP module uses this SAP value for IP packets.
- */
-#ifndef ETHERTYPE_IP
-#define ETHERTYPE_IP 0x800
-#endif
-
-#ifndef PPP_MAXMTU
-#define PPP_MAXMTU 65535
-#endif
-
-/*
- * Private information; one per upper stream.
- */
-typedef struct upperstr {
- minor_t mn; /* minor device number */
- struct upperstr *nextmn; /* next minor device */
- queue_t *q; /* read q associated with this upper stream */
- int flags; /* flag bits, see below */
- int state; /* current DLPI state */
- int sap; /* service access point */
- int req_sap; /* which SAP the DLPI client requested */
- struct upperstr *ppa; /* control stream for our ppa */
- struct upperstr *next; /* next stream for this ppa */
- uint ioc_id; /* last ioctl ID for this stream */
- /*
- * There is exactly one control stream for each PPA.
- * The following fields are only used for control streams.
- */
- int ppa_id;
- queue_t *lowerq; /* write queue attached below this PPA */
- struct upperstr *nextppa; /* next control stream */
- int mru;
- int mtu;
- struct pppstat stats; /* statistics */
-#ifdef sun
- kstat_t *kstats; /* stats for netstat */
-#else
- int ifflags;
- char ifname[IFNAMSIZ];
- struct ifstats ifstats;
-#endif
-} upperstr_t;
-
-/* Values for flags */
-#define US_PRIV 1 /* stream was opened by superuser */
-#define US_CONTROL 2 /* stream is a control stream */
-#define US_BLOCKED 4 /* flow ctrl has blocked lower write stream */
-#define US_LASTMOD 8 /* no PPP modules below us */
-#define US_DBGLOG 0x10 /* log various occurrences */
-
-static upperstr_t *minor_devs = NULL;
-static upperstr_t *ppas = NULL;
-
-#ifdef sun
-static int ppp_identify __P((dev_info_t *));
-static int ppp_attach __P((dev_info_t *, ddi_attach_cmd_t));
-static int ppp_detach __P((dev_info_t *, ddi_detach_cmd_t));
-static int ppp_devinfo __P((dev_info_t *, ddi_info_cmd_t, void *, void **));
-#endif
-static int pppopen __P((queue_t *, dev_t *, int, int, cred_t *));
-static int pppclose __P((queue_t *, int, cred_t *));
-static int pppuwput __P((queue_t *, mblk_t *));
-static int pppursrv __P((queue_t *));
-static int pppuwsrv __P((queue_t *));
-static int ppplrput __P((queue_t *, mblk_t *));
-static int ppplwput __P((queue_t *, mblk_t *));
-static int ppplrsrv __P((queue_t *));
-static int ppplwsrv __P((queue_t *));
-static void dlpi_request __P((queue_t *, mblk_t *, upperstr_t *));
-static void dlpi_error __P((queue_t *, int, int, int));
-static void dlpi_ok __P((queue_t *, int));
-static int send_data __P((mblk_t *, upperstr_t *));
-static void new_ppa __P((queue_t *, mblk_t *));
-static void attach_ppa __P((queue_t *, mblk_t *));
-static void detach_ppa __P((queue_t *, mblk_t *));
-static void debug_dump __P((queue_t *, mblk_t *));
-static upperstr_t *find_dest __P((upperstr_t *, int));
-static int putctl2 __P((queue_t *, int, int, int));
-static int putctl4 __P((queue_t *, int, int, int));
-
-static struct module_info ppp_info = {
- 0xb1a6, "ppp", 0, 512, 512, 128
-};
-
-static struct qinit pppurint = {
- NULL, pppursrv, pppopen, pppclose, NULL, &ppp_info, NULL
-};
-
-static struct qinit pppuwint = {
- pppuwput, pppuwsrv, NULL, NULL, NULL, &ppp_info, NULL
-};
-
-static struct qinit ppplrint = {
- ppplrput, ppplrsrv, NULL, NULL, NULL, &ppp_info, NULL
-};
-
-static struct qinit ppplwint = {
- ppplwput, ppplwsrv, NULL, NULL, NULL, &ppp_info, NULL
-};
-
-#ifndef sun
-extern struct ifstats *ifstats;
-int pppdevflag = 0;
-#else
-static
-#endif
-struct streamtab pppinfo = {
- &pppurint, &pppuwint,
- &ppplrint, &ppplwint
-};
-
-#ifdef sun
-static dev_info_t *ppp_dip;
-
-static struct cb_ops cb_ppp_ops = {
- nulldev, nulldev, nodev, nodev, /* cb_open, ... */
- nodev, nodev, nodev, nodev, /* cb_dump, ... */
- nodev, nodev, nodev, nochpoll, /* cb_devmap, ... */
- ddi_prop_op, /* cb_prop_op */
- &pppinfo, /* cb_stream */
- D_NEW|D_MP|D_MTQPAIR|D_MTOUTPERIM|D_MTOCEXCL /* cb_flag */
-};
-
-static struct dev_ops ppp_ops = {
- DEVO_REV, /* devo_rev */
- 0, /* devo_refcnt */
- ppp_devinfo, /* devo_getinfo */
- ppp_identify, /* devo_identify */
- nulldev, /* devo_probe */
- ppp_attach, /* devo_attach */
- ppp_detach, /* devo_detach */
- nodev, /* devo_reset */
- &cb_ppp_ops, /* devo_cb_ops */
- NULL /* devo_bus_ops */
-};
-
-/*
- * Module linkage information
- */
-
-static struct modldrv modldrv = {
- &mod_driverops, /* says this is a pseudo driver */
- "PPP-2.2 multiplexing driver",
- &ppp_ops /* driver ops */
-};
-
-static struct modlinkage modlinkage = {
- MODREV_1,
- (void *) &modldrv,
- NULL
-};
-
-int
-_init(void)
-{
- return mod_install(&modlinkage);
-}
-
-int
-_fini(void)
-{
- return mod_remove(&modlinkage);
-}
-
-int
-_info(mip)
- struct modinfo *mip;
-{
- return mod_info(&modlinkage, mip);
-}
-
-static int
-ppp_identify(dip)
- dev_info_t *dip;
-{
- return strcmp(ddi_get_name(dip), "ppp") == 0? DDI_IDENTIFIED:
- DDI_NOT_IDENTIFIED;
-}
-
-static int
-ppp_attach(dip, cmd)
- dev_info_t *dip;
- ddi_attach_cmd_t cmd;
-{
-
- if (cmd != DDI_ATTACH)
- return DDI_FAILURE;
- if (ddi_create_minor_node(dip, "ppp", S_IFCHR, 0, DDI_PSEUDO, CLONE_DEV)
- == DDI_FAILURE) {
- ddi_remove_minor_node(dip, NULL);
- return DDI_FAILURE;
- }
- return DDI_SUCCESS;
-}
-
-static int
-ppp_detach(dip, cmd)
- dev_info_t *dip;
- ddi_detach_cmd_t cmd;
-{
- ddi_remove_minor_node(dip, NULL);
- return DDI_SUCCESS;
-}
-
-static int
-ppp_devinfo(dip, cmd, arg, result)
- dev_info_t *dip;
- ddi_info_cmd_t cmd;
- void *arg;
- void **result;
-{
- int error;
-
- error = DDI_SUCCESS;
- switch (cmd) {
- case DDI_INFO_DEVT2DEVINFO:
- if (ppp_dip == NULL)
- error = DDI_FAILURE;
- else
- *result = (void *) ppp_dip;
- break;
- case DDI_INFO_DEVT2INSTANCE:
- *result = NULL;
- break;
- default:
- error = DDI_FAILURE;
- }
- return error;
-}
-#endif /* sun */
-
-#ifndef sun
-#define put(q, mp) ((*(q)->q_qinfo->qi_putp)((q), (mp)))
-# define qprocson(q)
-# define qprocsoff(q)
-# define canputnext(q) canput((q)->q_next)
-# define qwriter(q, mp, func, scope) (func)((q), (mp))
-#endif
-
-static int
-pppopen(q, devp, oflag, sflag, credp)
- queue_t *q;
- dev_t *devp;
- int oflag, sflag;
- cred_t *credp;
-{
- upperstr_t *up;
- upperstr_t **prevp;
- minor_t mn;
-
- if (q->q_ptr)
- return 0; /* device is already open */
-
- if (sflag == CLONEOPEN) {
- mn = 0;
- for (prevp = &minor_devs; (up = *prevp) != 0; prevp = &up->nextmn) {
- if (up->mn != mn)
- break;
- ++mn;
- }
- } else {
- mn = getminor(*devp);
- for (prevp = &minor_devs; (up = *prevp) != 0; prevp = &up->nextmn) {
- if (up->mn >= mn)
- break;
- }
- if (up->mn == mn) {
- /* this can't happen */
- q->q_ptr = WR(q)->q_ptr = up;
- return 0;
- }
- }
-
- /*
- * Construct a new minor node.
- */
- up = (upperstr_t *) kmem_zalloc(sizeof(upperstr_t), KM_SLEEP);
- if (up == 0) {
- cmn_err(CE_CONT, "pppopen: out of kernel memory\n");
- return ENXIO;
- }
- up->nextmn = *prevp;
- *prevp = up;
- up->mn = mn;
- *devp = makedevice(getmajor(*devp), mn);
- up->q = q;
- if (drv_priv(credp) == 0)
- up->flags |= US_PRIV;
- up->state = DL_UNATTACHED;
-#ifndef sun
- up->ifflags = IFF_UP | IFF_POINTOPOINT;
-#endif
- up->sap = -1;
- q->q_ptr = up;
- WR(q)->q_ptr = up;
- noenable(WR(q));
-
- qprocson(q);
- return 0;
-}
-
-static int
-pppclose(q, flag, credp)
- queue_t *q;
- int flag;
- cred_t *credp;
-{
- upperstr_t *up, **upp;
- upperstr_t *as, *asnext;
- upperstr_t **prevp;
-
- qprocsoff(q);
-
- up = (upperstr_t *) q->q_ptr;
- if (up->flags & US_DBGLOG)
- cmn_err(CE_CONT, "ppp/%d: close, flags=%x\n", up->mn, up->flags);
- if (up == 0)
- return 0;
- if (up->flags & US_CONTROL) {
-#ifndef sun
- struct ifstats *ifp, *pifp;
-#endif
- /*
- * This stream represents a PPA:
- * For all streams attached to the PPA, clear their
- * references to this PPA.
- * Then remove this PPA from the list of PPAs.
- */
- for (as = up->next; as != 0; as = asnext) {
- asnext = as->next;
- as->next = 0;
- as->ppa = 0;
- if (as->flags & US_BLOCKED) {
- as->flags &= ~US_BLOCKED;
- flushq(WR(as->q), FLUSHDATA);
- }
- }
- for (upp = &ppas; *upp != 0; upp = &(*upp)->nextppa)
- if (*upp == up) {
- *upp = up->nextppa;
- break;
- }
-#ifndef sun
- /* Remove the statistics from the active list. */
- for (ifp = ifstats, pifp = 0; ifp; ifp = ifp->ifs_next) {
- if (ifp == &up->ifstats) {
- if (pifp)
- pifp->ifs_next = ifp->ifs_next;
- else
- ifstats = ifp->ifs_next;
- break;
- }
- pifp = ifp;
- }
-#endif
- } else {
- /*
- * If this stream is attached to a PPA,
- * remove it from the PPA's list.
- */
- if ((as = up->ppa) != 0) {
- for (; as->next != 0; as = as->next)
- if (as->next == up) {
- as->next = up->next;
- break;
- }
- }
- }
-
-#ifdef sun
- if (up->kstats)
- kstat_delete(up->kstats);
-#endif
-
- q->q_ptr = NULL;
- WR(q)->q_ptr = NULL;
-
- for (prevp = &minor_devs; *prevp != 0; prevp = &(*prevp)->nextmn) {
- if (*prevp == up) {
- *prevp = up->nextmn;
- break;
- }
- }
- kmem_free(up, sizeof(upperstr_t));
-
- return 0;
-}
-
-/*
- * A message from on high. We do one of three things:
- * - qreply()
- * - put the message on the lower write stream
- * - queue it for our service routine
- */
-static int
-pppuwput(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *us, *usnext, *ppa;
- struct iocblk *iop;
- struct linkblk *lb;
-#ifndef sun
- struct ifreq *ifr;
- int i;
-#endif
- queue_t *lq;
- int error, n;
- mblk_t *mq;
-
- us = (upperstr_t *) q->q_ptr;
- switch (mp->b_datap->db_type) {
- case M_PCPROTO:
- case M_PROTO:
- dlpi_request(q, mp, us);
- break;
-
- case M_DATA:
- if (us->flags & US_DBGLOG)
- cmn_err(CE_CONT, "ppp/%d: uwput M_DATA len=%d flags=%x\n",
- us->mn, msgdsize(mp), us->flags);
- if ((us->flags & US_CONTROL) == 0
- || msgdsize(mp) > us->mtu + PPP_HDRLEN) {
-#if DEBUG
- cmn_err(CE_CONT, "pppuwput: junk data len=%d\n", msgdsize(mp));
-#endif
- freemsg(mp);
- break;
- }
- if (!send_data(mp, us))
- putq(q, mp);
- break;
-
- case M_IOCTL:
- iop = (struct iocblk *) mp->b_rptr;
- error = EINVAL;
- if (us->flags & US_DBGLOG)
- cmn_err(CE_CONT, "ppp/%d: ioctl %x count=%d\n",
- us->mn, iop->ioc_cmd, iop->ioc_count);
- switch (iop->ioc_cmd) {
- case I_LINK:
- if ((us->flags & US_CONTROL) == 0 || us->lowerq != 0)
- break;
- lb = (struct linkblk *) mp->b_cont->b_rptr;
- us->lowerq = lq = lb->l_qbot;
- lq->q_ptr = us;
- RD(lq)->q_ptr = us;
- noenable(RD(lq));
- iop->ioc_count = 0;
- error = 0;
- us->flags &= ~US_LASTMOD;
- /* Unblock upper streams which now feed this lower stream. */
- qenable(lq);
- /* Send useful information down to the modules which
- are now linked below us. */
- putctl2(lq, M_CTL, PPPCTL_UNIT, us->ppa_id);
- putctl4(lq, M_CTL, PPPCTL_MRU, us->mru);
- putctl4(lq, M_CTL, PPPCTL_MTU, us->mtu);
- break;
-
- case I_UNLINK:
- lb = (struct linkblk *) mp->b_cont->b_rptr;
-#if DEBUG
- if (us->lowerq != lb->l_qbot)
- cmn_err(CE_CONT, "ppp unlink: lowerq=%x qbot=%x\n",
- us->lowerq, lb->l_qbot);
-#endif
- us->lowerq = 0;
- iop->ioc_count = 0;
- error = 0;
- /* Unblock streams which now feed back up the control stream. */
- qenable(us->q);
- break;
-
- case PPPIO_NEWPPA:
- if (us->flags & US_CONTROL)
- break;
- if ((us->flags & US_PRIV) == 0) {
- error = EPERM;
- break;
- }
- /* Arrange to return an int */
- if ((mq = mp->b_cont) == 0
- || mq->b_datap->db_lim - mq->b_rptr < sizeof(int)) {
- mq = allocb(sizeof(int), BPRI_HI);
- if (mq == 0) {
- error = ENOSR;
- break;
- }
- if (mp->b_cont != 0)
- freemsg(mp->b_cont);
- mp->b_cont = mq;
- mq->b_cont = 0;
- }
- iop->ioc_count = sizeof(int);
- mq->b_wptr = mq->b_rptr + sizeof(int);
- qwriter(q, mp, new_ppa, PERIM_OUTER);
- error = -1;
- break;
-
- case PPPIO_ATTACH:
- /* like dlpi_attach, for programs which can't write to
- the stream (like pppstats) */
- if (iop->ioc_count != sizeof(int) || us->ppa != 0)
- break;
- n = *(int *)mp->b_cont->b_rptr;
- for (ppa = ppas; ppa != 0; ppa = ppa->nextppa)
- if (ppa->ppa_id == n)
- break;
- if (ppa == 0)
- break;
- us->ppa = ppa;
- iop->ioc_count = 0;
- qwriter(q, mp, attach_ppa, PERIM_OUTER);
- error = -1;
- break;
-
- case PPPIO_MRU:
- if (iop->ioc_count != sizeof(int) || (us->flags & US_CONTROL) == 0)
- break;
- n = *(int *)mp->b_cont->b_rptr;
- if (n <= 0 || n > PPP_MAXMTU)
- break;
- if (n < PPP_MRU)
- n = PPP_MRU;
- us->mru = n;
- if (us->lowerq)
- putctl4(us->lowerq, M_CTL, PPPCTL_MRU, n);
- error = 0;
- iop->ioc_count = 0;
- break;
-
- case PPPIO_MTU:
- if (iop->ioc_count != sizeof(int) || (us->flags & US_CONTROL) == 0)
- break;
- n = *(int *)mp->b_cont->b_rptr;
- if (n <= 0 || n > PPP_MAXMTU)
- break;
- if (n < PPP_MRU)
- n = PPP_MRU;
- us->mtu = n;
-#ifndef sun
- us->ifstats.ifs_mtu = n;
-#endif
- if (us->lowerq)
- putctl4(us->lowerq, M_CTL, PPPCTL_MTU, n);
- error = 0;
- iop->ioc_count = 0;
- break;
-
- case PPPIO_LASTMOD:
- us->flags |= US_LASTMOD;
- error = 0;
- break;
-
- case PPPIO_DEBUG:
- if (iop->ioc_count != sizeof(int))
- break;
- n = *(int *)mp->b_cont->b_rptr;
- if (n == PPPDBG_DUMP + PPPDBG_DRIVER) {
- qwriter(q, NULL, debug_dump, PERIM_OUTER);
- iop->ioc_count = 0;
- error = 0;
- } else if (n == PPPDBG_LOG + PPPDBG_DRIVER) {
- cmn_err(CE_CONT, "ppp/%d: debug log enabled\n", us->mn);
- us->flags |= US_DBGLOG;
- iop->ioc_count = 0;
- error = 0;
- } else {
- if (us->ppa == 0 || us->ppa->lowerq == 0)
- break;
- putnext(us->ppa->lowerq, mp);
- error = -1;
- }
- break;
-
-#ifndef sun
- case SIOCSIFNAME:
- printf("SIOCSIFNAME\n");
- /* Sent from IP down to us. Attach the ifstats structure. */
- if (iop->ioc_count != sizeof(struct ifreq) || us->ppa == 0)
- break;
- ifr = (struct ifreq *)mp->b_cont->b_rptr;
- /* Find the unit number in the interface name. */
- for (i = 0; i < IFNAMSIZ; i++) {
- if (ifr->ifr_name[i] == 0 ||
- (ifr->ifr_name[i] >= '0' &&
- ifr->ifr_name[i] <= '9'))
- break;
- else
- us->ifname[i] = ifr->ifr_name[i];
- }
- us->ifname[i] = 0;
-
- /* Convert the unit number to binary. */
- for (n = 0; i < IFNAMSIZ; i++) {
- if (ifr->ifr_name[i] == 0) {
- break;
- }
- else {
- n = n * 10 + ifr->ifr_name[i] - '0';
- }
- }
-
- /* Verify the ppa. */
- if (us->ppa->ppa_id != n)
- break;
- ppa = us->ppa;
-
- /* Set up the netstat block. */
- strncpy (ppa->ifname, us->ifname, IFNAMSIZ);
-
- ppa->ifstats.ifs_name = ppa->ifname;
- ppa->ifstats.ifs_unit = n;
- ppa->ifstats.ifs_active = us->state != DL_UNBOUND;
- ppa->ifstats.ifs_mtu = ppa->mtu;
-
- /* Link in statistics used by netstat. */
- ppa->ifstats.ifs_next = ifstats;
- ifstats = &ppa->ifstats;
-
- iop->ioc_count = 0;
- error = 0;
- break;
-
- case SIOCGIFFLAGS:
- printf("SIOCGIFFLAGS\n");
- if (!(us->flags & US_CONTROL)) {
- if (us->ppa)
- us = us->ppa;
- else
- break;
- }
- ((struct iocblk_in *)iop)->ioc_ifflags = us->ifflags;
- error = 0;
- break;
-
- case SIOCSIFFLAGS:
- printf("SIOCSIFFLAGS\n");
- if (!(us->flags & US_CONTROL)) {
- if (us->ppa)
- us = us->ppa;
- else
- break;
- }
- us->ifflags = ((struct iocblk_in *)iop)->ioc_ifflags;
- error = 0;
- break;
-
- case SIOCSIFADDR:
- printf("SIOCSIFADDR\n");
- if (!(us->flags & US_CONTROL)) {
- if (us->ppa)
- us = us->ppa;
- else
- break;
- }
- us->ifflags |= IFF_RUNNING;
- ((struct iocblk_in *)iop)->ioc_ifflags |= IFF_RUNNING;
- error = 0;
- break;
-
- case SIOCGIFNETMASK:
- case SIOCSIFNETMASK:
- case SIOCGIFADDR:
- case SIOCGIFDSTADDR:
- case SIOCSIFDSTADDR:
- case SIOCGIFMETRIC:
- error = 0;
- break;
-#endif
-
- default:
- if (us->ppa == 0 || us->ppa->lowerq == 0)
- break;
- us->ioc_id = iop->ioc_id;
- error = -1;
- switch (iop->ioc_cmd) {
- case PPPIO_GETSTAT:
- case PPPIO_GETCSTAT:
- if (us->flags & US_LASTMOD) {
- error = EINVAL;
- break;
- }
- putnext(us->ppa->lowerq, mp);
- break;
- default:
- if (us->flags & US_PRIV)
- putnext(us->ppa->lowerq, mp);
- else {
-#if DEBUG
- cmn_err(CE_CONT, "ppp ioctl %x rejected\n", iop->ioc_cmd);
-#endif
- error = EPERM;
- }
- break;
- }
- break;
- }
-
- if (error > 0) {
- iop->ioc_error = error;
- mp->b_datap->db_type = M_IOCNAK;
- qreply(q, mp);
- } else if (error == 0) {
- mp->b_datap->db_type = M_IOCACK;
- qreply(q, mp);
- }
- break;
-
- case M_FLUSH:
- if (us->flags & US_DBGLOG)
- cmn_err(CE_CONT, "ppp/%d: flush %x\n", us->mn, *mp->b_rptr);
- if (*mp->b_rptr & FLUSHW)
- flushq(q, FLUSHDATA);
- if (*mp->b_rptr & FLUSHR) {
- *mp->b_rptr &= ~FLUSHW;
- qreply(q, mp);
- } else
- freemsg(mp);
- break;
-
- default:
- freemsg(mp);
- break;
- }
- return 0;
-}
-
-static void
-dlpi_request(q, mp, us)
- queue_t *q;
- mblk_t *mp;
- upperstr_t *us;
-{
- union DL_primitives *d = (union DL_primitives *) mp->b_rptr;
- int size = mp->b_wptr - mp->b_rptr;
- mblk_t *reply, *np;
- upperstr_t *ppa, *os;
- int sap, *ip, len;
- dl_info_ack_t *info;
- dl_bind_ack_t *ackp;
-
- if (us->flags & US_DBGLOG)
- cmn_err(CE_CONT, "ppp/%d: dlpi prim %x len=%d\n", us->mn,
- d->dl_primitive, size);
- switch (d->dl_primitive) {
- case DL_INFO_REQ:
- if (size < sizeof(dl_info_req_t))
- goto badprim;
- if ((reply = allocb(sizeof(dl_info_ack_t), BPRI_HI)) == 0)
- break; /* should do bufcall */
- reply->b_datap->db_type = M_PCPROTO;
- info = (dl_info_ack_t *) reply->b_wptr;
- reply->b_wptr += sizeof(dl_info_ack_t);
- bzero((caddr_t) info, sizeof(dl_info_ack_t));
- info->dl_primitive = DL_INFO_ACK;
- info->dl_max_sdu = PPP_MAXMTU;
- info->dl_min_sdu = 1;
- info->dl_addr_length = sizeof(ulong);
-#ifdef DL_OTHER
- info->dl_mac_type = DL_OTHER;
-#else
- info->dl_mac_type = DL_HDLC; /* a lie */
-#endif
- info->dl_current_state = us->state;
- info->dl_service_mode = DL_CLDLS;
- info->dl_provider_style = DL_STYLE2;
-#if DL_CURRENT_VERSION >= 2
- info->dl_sap_length = sizeof(ulong);
- info->dl_version = DL_CURRENT_VERSION;
-#endif
- qreply(q, reply);
- break;
-
- case DL_ATTACH_REQ:
- if (size < sizeof(dl_attach_req_t))
- goto badprim;
- if (us->state != DL_UNATTACHED || us->ppa != 0) {
- dlpi_error(q, DL_ATTACH_REQ, DL_OUTSTATE, 0);
- break;
- }
- for (ppa = ppas; ppa != 0; ppa = ppa->nextppa)
- if (ppa->ppa_id == d->attach_req.dl_ppa)
- break;
- if (ppa == 0) {
- dlpi_error(q, DL_ATTACH_REQ, DL_BADPPA, 0);
- break;
- }
- us->ppa = ppa;
- qwriter(q, mp, attach_ppa, PERIM_OUTER);
- break;
-
- case DL_DETACH_REQ:
- if (size < sizeof(dl_detach_req_t))
- goto badprim;
- if (us->state != DL_UNBOUND || us->ppa == 0) {
- dlpi_error(q, DL_DETACH_REQ, DL_OUTSTATE, 0);
- break;
- }
- qwriter(q, mp, detach_ppa, PERIM_OUTER);
- break;
-
- case DL_BIND_REQ:
- if (size < sizeof(dl_bind_req_t))
- goto badprim;
- if (us->state != DL_UNBOUND || us->ppa == 0) {
- dlpi_error(q, DL_BIND_REQ, DL_OUTSTATE, 0);
- break;
- }
- if (d->bind_req.dl_service_mode != DL_CLDLS) {
- dlpi_error(q, DL_BIND_REQ, DL_UNSUPPORTED, 0);
- break;
- }
-
- /* saps must be valid PPP network protocol numbers,
- except that we accept ETHERTYPE_IP in place of PPP_IP. */
- sap = d->bind_req.dl_sap;
- us->req_sap = sap;
-#if DEBUG
- cmn_err(CE_CONT, "ppp bind %x\n", sap);
-#endif
- if (sap == ETHERTYPE_IP)
- sap = PPP_IP;
- if (sap < 0x21 || sap > 0x3fff || (sap & 0x101) != 1) {
- dlpi_error(q, DL_BIND_REQ, DL_BADADDR, 0);
- break;
- }
-
- /* check that no other stream is bound to this sap already. */
- for (os = us->ppa; os != 0; os = os->next)
- if (os->sap == sap)
- break;
- if (os != 0) {
- dlpi_error(q, DL_BIND_REQ, DL_NOADDR, 0);
- break;
- }
-
- us->sap = sap;
- us->state = DL_IDLE;
-
- if ((reply = allocb(sizeof(dl_bind_ack_t) + sizeof(ulong),
- BPRI_HI)) == 0)
- break; /* should do bufcall */
- ackp = (dl_bind_ack_t *) reply->b_wptr;
- reply->b_wptr += sizeof(dl_bind_ack_t) + sizeof(ulong);
- reply->b_datap->db_type = M_PCPROTO;
- bzero((caddr_t) ackp, sizeof(dl_bind_ack_t));
- ackp->dl_primitive = DL_BIND_ACK;
- ackp->dl_sap = sap;
- ackp->dl_addr_length = sizeof(ulong);
- ackp->dl_addr_offset = sizeof(dl_bind_ack_t);
- *(ulong *)(ackp+1) = sap;
- qreply(q, reply);
- break;
-
- case DL_UNBIND_REQ:
- if (size < sizeof(dl_unbind_req_t))
- goto badprim;
- if (us->state != DL_IDLE) {
- dlpi_error(q, DL_UNBIND_REQ, DL_OUTSTATE, 0);
- break;
- }
- us->sap = -1;
- us->state = DL_UNBOUND;
-#ifndef sun
- us->ppa->ifstats.ifs_active = 0;
-#endif
- dlpi_ok(q, DL_UNBIND_REQ);
- break;
-
- case DL_UNITDATA_REQ:
- if (size < sizeof(dl_unitdata_req_t))
- goto badprim;
- if (us->state != DL_IDLE) {
- dlpi_error(q, DL_UNITDATA_REQ, DL_OUTSTATE, 0);
- break;
- }
- if (us->ppa == 0) {
- cmn_err(CE_CONT, "ppp: in state dl_idle but ppa == 0?\n");
- break;
- }
- len = mp->b_cont == 0? 0: msgdsize(mp->b_cont);
- if (len > us->ppa->mtu) {
-#if DEBUG
- cmn_err(CE_CONT, "dlpi data too large (%d > %d)\n", len, us->mtu);
-#endif
- break;
- }
- /* this assumes PPP_HDRLEN <= sizeof(dl_unitdata_req_t) */
- if (mp->b_datap->db_ref > 1) {
- np = allocb(PPP_HDRLEN, BPRI_HI);
- if (np == 0)
- break; /* gak! */
- np->b_cont = mp->b_cont;
- mp->b_cont = 0;
- freeb(mp);
- mp = np;
- } else
- mp->b_datap->db_type = M_DATA;
- /* XXX should use dl_dest_addr_offset/length here,
- but we would have to translate ETHERTYPE_IP -> PPP_IP */
- mp->b_wptr = mp->b_rptr + PPP_HDRLEN;
- mp->b_rptr[0] = PPP_ALLSTATIONS;
- mp->b_rptr[1] = PPP_UI;
- mp->b_rptr[2] = us->sap >> 8;
- mp->b_rptr[3] = us->sap;
- if (!send_data(mp, us))
- putq(q, mp);
- return;
-
-#if DL_CURRENT_VERSION >= 2
- case DL_SUBS_BIND_REQ:
- case DL_SUBS_UNBIND_REQ:
- case DL_ENABMULTI_REQ:
- case DL_DISABMULTI_REQ:
- case DL_PROMISCON_REQ:
- case DL_PROMISCOFF_REQ:
- case DL_PHYS_ADDR_REQ:
- case DL_SET_PHYS_ADDR_REQ:
- case DL_XID_REQ:
- case DL_TEST_REQ:
- case DL_REPLY_UPDATE_REQ:
- case DL_REPLY_REQ:
- case DL_DATA_ACK_REQ:
-#endif
- case DL_CONNECT_REQ:
- case DL_TOKEN_REQ:
- dlpi_error(q, d->dl_primitive, DL_NOTSUPPORTED, 0);
- break;
-
- case DL_CONNECT_RES:
- case DL_DISCONNECT_REQ:
- case DL_RESET_REQ:
- case DL_RESET_RES:
- dlpi_error(q, d->dl_primitive, DL_OUTSTATE, 0);
- break;
-
- case DL_UDQOS_REQ:
- dlpi_error(q, d->dl_primitive, DL_BADQOSTYPE, 0);
- break;
-
-#if DL_CURRENT_VERSION >= 2
- case DL_TEST_RES:
- case DL_XID_RES:
- break;
-#endif
-
- default:
- cmn_err(CE_CONT, "ppp: unknown dlpi prim 0x%x\n", d->dl_primitive);
- /* fall through */
- badprim:
- dlpi_error(q, d->dl_primitive, DL_BADPRIM, 0);
- break;
- }
- freemsg(mp);
-}
-
-static void
-dlpi_error(q, prim, err, uerr)
- queue_t *q;
- int prim, err, uerr;
-{
- mblk_t *reply;
- dl_error_ack_t *errp;
-
- reply = allocb(sizeof(dl_error_ack_t), BPRI_HI);
- if (reply == 0)
- return; /* XXX should do bufcall */
- reply->b_datap->db_type = M_PCPROTO;
- errp = (dl_error_ack_t *) reply->b_wptr;
- reply->b_wptr += sizeof(dl_error_ack_t);
- errp->dl_primitive = DL_ERROR_ACK;
- errp->dl_error_primitive = prim;
- errp->dl_errno = err;
- errp->dl_unix_errno = uerr;
- qreply(q, reply);
-}
-
-static void
-dlpi_ok(q, prim)
- queue_t *q;
- int prim;
-{
- mblk_t *reply;
- dl_ok_ack_t *okp;
-
- reply = allocb(sizeof(dl_ok_ack_t), BPRI_HI);
- if (reply == 0)
- return; /* XXX should do bufcall */
- reply->b_datap->db_type = M_PCPROTO;
- okp = (dl_ok_ack_t *) reply->b_wptr;
- reply->b_wptr += sizeof(dl_ok_ack_t);
- okp->dl_primitive = DL_OK_ACK;
- okp->dl_correct_primitive = prim;
- qreply(q, reply);
-}
-
-static int
-send_data(mp, us)
- mblk_t *mp;
- upperstr_t *us;
-{
- queue_t *q;
- upperstr_t *ppa;
-
- if (us->flags & US_BLOCKED)
- return 0;
- ppa = us->ppa;
- if (ppa == 0) {
- freemsg(mp);
- return 1;
- }
- if ((q = ppa->lowerq) == 0) {
- /* try to send it up the control stream */
- if (canputnext(ppa->q)) {
- putnext(ppa->q, mp);
- return 1;
- }
- } else {
- if (canputnext(ppa->lowerq)) {
- /*
- * The lower write queue's put procedure just updates counters
- * and does a putnext. We call it in order to enter the lower
- * queues' perimeter so that the counter updates are serialized.
- */
- put(ppa->lowerq, mp);
- return 1;
- }
- }
- us->flags |= US_BLOCKED;
- return 0;
-}
-
-/*
- * Allocate a new PPA id and link this stream into the list of PPAs.
- * This procedure is called with an exclusive lock on all queues in
- * this driver.
- */
-static void
-new_ppa(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *us, **usp;
- int ppa_id;
-
- usp = &ppas;
- ppa_id = 0;
- while ((us = *usp) != 0 && ppa_id == us->ppa_id) {
- ++ppa_id;
- usp = &us->nextppa;
- }
- us = (upperstr_t *) q->q_ptr;
- us->ppa_id = ppa_id;
- us->ppa = us;
- us->next = 0;
- us->nextppa = *usp;
- *usp = us;
- us->flags |= US_CONTROL;
-
- us->mtu = PPP_MRU;
- us->mru = PPP_MRU;
-
-#ifdef sun
- if (us->kstats == 0) {
- char unit[32];
-
- sprintf(unit, "ppp%d", us->ppa->ppa_id);
- us->kstats = kstat_create("ppp", us->ppa->ppa_id, unit,
- "net", KSTAT_TYPE_NAMED, 4, 0);
- if (us->kstats != 0) {
- kstat_named_t *kn = KSTAT_NAMED_PTR(us->kstats);
-
- strcpy(kn[0].name, "ipackets");
- kn[0].data_type = KSTAT_DATA_ULONG;
- strcpy(kn[1].name, "ierrors");
- kn[1].data_type = KSTAT_DATA_ULONG;
- strcpy(kn[2].name, "opackets");
- kn[2].data_type = KSTAT_DATA_ULONG;
- strcpy(kn[3].name, "oerrors");
- kn[3].data_type = KSTAT_DATA_ULONG;
- kstat_install(us->kstats);
- }
- }
-#endif
-
- *(int *)mp->b_cont->b_rptr = ppa_id;
- mp->b_datap->db_type = M_IOCACK;
- qreply(q, mp);
-}
-
-static void
-attach_ppa(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *us, *t;
-
- us = (upperstr_t *) q->q_ptr;
- us->state = DL_UNBOUND;
- for (t = us->ppa; t->next != 0; t = t->next)
- ;
- t->next = us;
- us->next = 0;
- if (mp->b_datap->db_type == M_IOCTL) {
- mp->b_datap->db_type = M_IOCACK;
- qreply(q, mp);
- } else {
- dlpi_ok(q, DL_ATTACH_REQ);
- }
-}
-
-static void
-detach_ppa(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *us, *t;
-
- us = (upperstr_t *) q->q_ptr;
- for (t = us->ppa; t->next != 0; t = t->next)
- if (t->next == us) {
- t->next = us->next;
- break;
- }
- us->next = 0;
- us->ppa = 0;
- us->state = DL_UNATTACHED;
- dlpi_ok(q, DL_DETACH_REQ);
-}
-
-static int
-pppuwsrv(q)
- queue_t *q;
-{
- upperstr_t *us;
- struct lowerstr *ls;
- queue_t *lwq;
- mblk_t *mp;
-
- us = (upperstr_t *) q->q_ptr;
- us->flags &= ~US_BLOCKED;
- while ((mp = getq(q)) != 0) {
- if (!send_data(mp, us)) {
- putbq(q, mp);
- break;
- }
- }
- return 0;
-}
-
-static int
-ppplwput(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *ppa;
-
- ppa = q->q_ptr;
- if (ppa != 0) { /* why wouldn't it? */
- ppa->stats.ppp_opackets++;
- ppa->stats.ppp_obytes += msgdsize(mp);
-#ifdef sun
- if (ppa->kstats != 0)
- KSTAT_NAMED_PTR(ppa->kstats)[2].value.ul++;
-#else
- ppa->ifstats.ifs_opackets++;
-#endif
- }
- putnext(q, mp);
- return 0;
-}
-
-static int
-ppplwsrv(q)
- queue_t *q;
-{
- upperstr_t *us;
-
- /*
- * Flow control has back-enabled this stream:
- * enable the write service procedures of all upper
- * streams feeding this lower stream.
- */
- for (us = (upperstr_t *) q->q_ptr; us != NULL; us = us->next)
- if (us->flags & US_BLOCKED)
- qenable(WR(us->q));
- return 0;
-}
-
-static int
-pppursrv(q)
- queue_t *q;
-{
- upperstr_t *us, *as;
- mblk_t *mp, *hdr;
- dl_unitdata_ind_t *ud;
- int proto;
-
- us = (upperstr_t *) q->q_ptr;
- if (us->flags & US_CONTROL) {
- /*
- * A control stream.
- * If there is no lower queue attached, run the write service
- * routines of other upper streams attached to this PPA.
- */
- if (us->lowerq == 0) {
- as = us;
- do {
- if (as->flags & US_BLOCKED)
- qenable(WR(as->q));
- as = as->next;
- } while (as != 0);
- }
- } else {
- /*
- * A network protocol stream. Put a DLPI header on each
- * packet and send it on.
- * (Actually, it seems that the IP module will happily
- * accept M_DATA messages without the DL_UNITDATA_IND header.)
- */
- while ((mp = getq(q)) != 0) {
- if (!canputnext(q)) {
- putbq(q, mp);
- break;
- }
- proto = PPP_PROTOCOL(mp->b_rptr);
- mp->b_rptr += PPP_HDRLEN;
- hdr = allocb(sizeof(dl_unitdata_ind_t) + 2 * sizeof(ulong),
- BPRI_MED);
- if (hdr == 0) {
- /* XXX should put it back and use bufcall */
- freemsg(mp);
- continue;
- }
- hdr->b_datap->db_type = M_PROTO;
- ud = (dl_unitdata_ind_t *) hdr->b_wptr;
- hdr->b_wptr += sizeof(dl_unitdata_ind_t) + 2 * sizeof(ulong);
- hdr->b_cont = mp;
- ud->dl_primitive = DL_UNITDATA_IND;
- ud->dl_dest_addr_length = sizeof(ulong);
- ud->dl_dest_addr_offset = sizeof(dl_unitdata_ind_t);
- ud->dl_src_addr_length = sizeof(ulong);
- ud->dl_src_addr_offset = ud->dl_dest_addr_offset + sizeof(ulong);
-#if DL_CURRENT_VERSION >= 2
- ud->dl_group_address = 0;
-#endif
- /* Send the DLPI client the data with the SAP they requested,
- (e.g. ETHERTYPE_IP) rather than the PPP protocol number
- (e.g. PPP_IP) */
- ((ulong *)(ud + 1))[0] = us->req_sap; /* dest SAP */
- ((ulong *)(ud + 1))[1] = us->req_sap; /* src SAP */
- putnext(q, hdr);
- }
- }
-
- /*
- * If this stream is attached to a PPA with a lower queue pair,
- * enable the read queue's service routine if it has data queued.
- * XXX there is a possibility that packets could get out of order
- * if ppplrput now runs before ppplrsrv.
- */
- if (us->ppa != 0 && us->ppa->lowerq != 0)
- qenable(RD(us->ppa->lowerq));
-
- return 0;
-}
-
-static upperstr_t *
-find_dest(ppa, proto)
- upperstr_t *ppa;
- int proto;
-{
- upperstr_t *us;
-
- for (us = ppa->next; us != 0; us = us->next)
- if (proto == us->sap)
- break;
- return us;
-}
-
-static int
-ppplrput(q, mp)
- queue_t *q;
- mblk_t *mp;
-{
- upperstr_t *ppa, *us;
- queue_t *uq;
- int proto, len;
- mblk_t *np;
- struct iocblk *iop;
-
- ppa = (upperstr_t *) q->q_ptr;
- if (ppa == 0) {
-#if DEBUG
- cmn_err(CE_CONT, "ppplrput: q = %x, ppa = 0??\n", q);
-#endif
- freemsg(mp);
- return 0;
- }
- switch (mp->b_datap->db_type) {
- case M_FLUSH:
- if (*mp->b_rptr & FLUSHW) {
- *mp->b_rptr &= ~FLUSHR;
- qreply(q, mp);
- } else
- freemsg(mp);
- break;
-
- case M_CTL:
- switch (*mp->b_rptr) {
- case PPPCTL_IERROR:
-#ifdef sun
- if (ppa->kstats != 0) {
- KSTAT_NAMED_PTR(ppa->kstats)[1].value.ul++;
- }
-#else
- ppa->ifstats.ifs_ierrors++;
-#endif
- ppa->stats.ppp_ierrors++;
- break;
- case PPPCTL_OERROR:
-#ifdef sun
- if (ppa->kstats != 0) {
- KSTAT_NAMED_PTR(ppa->kstats)[3].value.ul++;
- }
-#else
- ppa->ifstats.ifs_oerrors++;
-#endif
- ppa->stats.ppp_oerrors++;
- break;
- }
- freemsg(mp);
- break;
-
- case M_IOCACK:
- case M_IOCNAK:
- /*
- * Attempt to match up the response with the stream
- * that the request came from.
- */
- iop = (struct iocblk *) mp->b_rptr;
- for (us = ppa; us != 0; us = us->next)
- if (us->ioc_id == iop->ioc_id)
- break;
- if (us == 0)
- freemsg(mp);
- else
- putnext(us->q, mp);
- break;
-
- default:
- if (mp->b_datap->db_type == M_DATA) {
- len = msgdsize(mp);
- if (mp->b_wptr - mp->b_rptr < PPP_HDRLEN) {
-#ifdef USE_MSGPULLUP
- np = msgpullup(mp, PPP_HDRLEN);
- freemsg(mp);
- if (np == 0) {
-#if DEBUG
- cmn_err(CE_CONT, "ppp_lrput: msgpullup failed (len=%d)\n",
- len);
-#endif
- break;
- }
- mp = np;
-#else
- if (!pullupmsg (mp, PPP_HDRLEN)) {
-#if DEBUG
- cmn_err(CE_CONT, "ppp_lrput: pullupmsg failed (len=%d)\n",
- len);
-#endif
- break;
- }
-#endif
- }
- ppa->stats.ppp_ipackets++;
- ppa->stats.ppp_ibytes += len;
-#ifdef sun
- if (ppa->kstats != 0) {
- KSTAT_NAMED_PTR(ppa->kstats)[0].value.ul++;
- }
-#else
- ppa->ifstats.ifs_ipackets++;
-#endif
- proto = PPP_PROTOCOL(mp->b_rptr);
- if (proto < 0x8000 && (us = find_dest(ppa, proto)) != 0) {
- /*
- * A data packet for some network protocol.
- * Queue it on the upper stream for that protocol.
- */
- if (canput(us->q))
- putq(us->q, mp);
- else
- putq(q, mp);
- break;
- }
- }
- /*
- * A control frame, a frame for an unknown protocol,
- * or some other message type.
- * Send it up to pppd via the control stream.
- */
- if (queclass(mp) == QPCTL || canputnext(ppa->q))
- putnext(ppa->q, mp);
- else
- putq(q, mp);
- break;
- }
-
- return 0;
-}
-
-static int
-ppplrsrv(q)
- queue_t *q;
-{
- mblk_t *mp;
- upperstr_t *ppa, *us;
- int proto;
-
- /*
- * Packets only get queued here for flow control reasons.
- */
- ppa = (upperstr_t *) q->q_ptr;
- while ((mp = getq(q)) != 0) {
- if (mp->b_datap->db_type == M_DATA
- && (proto = PPP_PROTOCOL(mp->b_rptr)) < 0x8000
- && (us = find_dest(ppa, proto)) != 0) {
- if (canput(us->q))
- putq(us->q, mp);
- else {
- putbq(q, mp);
- break;
- }
- } else {
- if (canputnext(ppa->q))
- putnext(ppa->q, mp);
- else {
- putbq(q, mp);
- break;
- }
- }
- }
- return 0;
-}
-
-static int
-putctl2(q, type, code, val)
- queue_t *q;
- int type, code, val;
-{
- mblk_t *mp;
-
- mp = allocb(2, BPRI_HI);
- if (mp == 0)
- return 0;
- mp->b_datap->db_type = type;
- mp->b_wptr[0] = code;
- mp->b_wptr[1] = val;
- mp->b_wptr += 2;
- putnext(q, mp);
- return 1;
-}
-
-static int
-putctl4(q, type, code, val)
- queue_t *q;
- int type, code, val;
-{
- mblk_t *mp;
-
- mp = allocb(4, BPRI_HI);
- if (mp == 0)
- return 0;
- mp->b_datap->db_type = type;
- mp->b_wptr[0] = code;
- ((short *)mp->b_wptr)[1] = val;
- mp->b_wptr += 4;
- putnext(q, mp);
- return 1;
-}
-
-static void
-debug_dump(q, mp)
- queue_t *q; /* not used */
- mblk_t *mp; /* not used either */
-{
- upperstr_t *us;
- queue_t *uq, *lq;
-
- cmn_err(CE_CONT, "ppp upper streams:\n");
- for (us = minor_devs; us != 0; us = us->nextmn) {
- uq = us->q;
- cmn_err(CE_CONT, " %d: q=%x rlev=%d wlev=%d flags=0x%b",
- us->mn, uq, (uq? qsize(uq): 0), (uq? qsize(WR(uq)): 0),
- us->flags, "\020\1priv\2control\3blocked\4last");
- cmn_err(CE_CONT, " state=%x sap=%x req_sap=%x", us->state, us->sap,
- us->req_sap);
- if (us->ppa == 0)
- cmn_err(CE_CONT, " ppa=?\n");
- else
- cmn_err(CE_CONT, " ppa=%d\n", us->ppa->ppa_id);
- if (us->flags & US_CONTROL) {
- lq = us->lowerq;
- cmn_err(CE_CONT, " control for %d lq=%x rlev=%d wlev=%d",
- us->ppa_id, lq, (lq? qsize(RD(lq)): 0),
- (lq? qsize(lq): 0));
- cmn_err(CE_CONT, " mru=%d mtu=%d\n", us->mru, us->mtu);
- }
- }
-}
projects / ppp.git / commitdiff