static int
m3ua_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *crp)
{
m3ua_t *m3ua, **m3p = &m3ua_devices;
int cmajor = getmajor(*devp);
int cminor = getmajor(*devp);
trace();
if (q->q_ptr != NULL)
return (0);
if (sflag == MODOPEN || WR(q)->q_next)
return EIO;
if (!cminor) {
if (!m3ua_ctrlq)
m3ua_ctrlq = q;
else
sflag = CLONEOPEN;
}
if (sflag == CLONEOPEN)
cminor = 1;
for (; cminor <= NMINORS && *m3p; m3p = &(*m3p)->next) {
int dminor = getminor((*m3p)->devnum);
if (cminor < dminor)
break;
if (cminor == dminor) {
if (sflag == CLONEOPEN) {
cminor++;
continue;
}
return EIO;
}
}
if (cminor > M3UA_MINOR)
return ENXIO;
*devp = makedevice(cmajor, cminor);
if (!(m3ua = kmalloc(sizeof(*m3ua), GFP_KERNEL)))
return ENOMEM;
bzero(m3ua, sizeof(*m3ua));
q->q_ptr = WR(q)->q_ptr;
m3ua->rq = RD(q);
m3ua->wq = WR(q);
m3ua->state = FIXME;
m3ua->devnum = *devp;
return (0);
}
static int
vnode_match(vnode_t *v1, vnode_t *v2, cred_t *cr)
{
vattr_t v1attr, v2attr;
/*
* If we have a device file, check to see if is a cloned open of the
* same device. For self-cloning devices, the major numbers will match.
* For devices cloned through the 'clone' driver, the minor number of
* the source device will be the same as the major number of the cloned
* device.
*/
if ((v1->v_type == VCHR || v1->v_type == VBLK) &&
v1->v_type == v2->v_type) {
if ((spec_is_selfclone(v1) || spec_is_selfclone(v2)) &&
getmajor(v1->v_rdev) == getmajor(v2->v_rdev))
return (1);
if (spec_is_clone(v1) &&
getmajor(v1->v_rdev) == getminor(v2->v_rdev))
return (1);
if (spec_is_clone(v2) &&
getmajor(v2->v_rdev) == getminor(v1->v_rdev))
return (1);
}
v1attr.va_mask = v2attr.va_mask = AT_TYPE;
/*
* This check for symbolic links handles the pseudo-symlinks in procfs.
* These particular links have v_type of VDIR, but the attributes have a
* type of VLNK. We need to avoid these links because otherwise if we
* are currently in '/proc/self/fd', then '/proc/self/cwd' will compare
* as the same vnode.
*/
if (VOP_GETATTR(v1, &v1attr, 0, cr, NULL) != 0 ||
VOP_GETATTR(v2, &v2attr, 0, cr, NULL) != 0 ||
v1attr.va_type == VLNK || v2attr.va_type == VLNK)
return (0);
v1attr.va_mask = v2attr.va_mask = AT_TYPE | AT_FSID | AT_NODEID;
if (VOP_GETATTR(v1, &v1attr, ATTR_REAL, cr, NULL) != 0 ||
VOP_GETATTR(v2, &v2attr, ATTR_REAL, cr, NULL) != 0)
return (0);
return (v1attr.va_fsid == v2attr.va_fsid &&
v1attr.va_nodeid == v2attr.va_nodeid);
}
/*ARGSUSED*/
static int
ipmi_open(dev_t *devp, int flag, int otyp, cred_t *cred)
{
minor_t minor;
ipmi_device_t *dev;
if (ipmi_attached == B_FALSE)
return (ENXIO);
if (ipmi_found == B_FALSE)
return (ENODEV);
/* exclusive opens are not supported */
if (flag & FEXCL)
return (ENOTSUP);
if ((minor = (minor_t)id_alloc_nosleep(minor_ids)) == 0)
return (ENODEV);
/* Initialize the per file descriptor data. */
dev = kmem_zalloc(sizeof (ipmi_device_t), KM_SLEEP);
dev->ipmi_pollhead = kmem_zalloc(sizeof (pollhead_t), KM_SLEEP);
TAILQ_INIT(&dev->ipmi_completed_requests);
dev->ipmi_address = IPMI_BMC_SLAVE_ADDR;
dev->ipmi_lun = IPMI_BMC_SMS_LUN;
*devp = makedevice(getmajor(*devp), minor);
dev->ipmi_dev = *devp;
list_insert_head(&dev_list, dev);
return (0);
}
/* ARGSUSED1 */
static int
dropen(queue_t *q, dev_t *devp, int oflag, int sflag, cred_t *crp)
{
struct drstate *dsp;
if (sflag != MODOPEN) { /* must be a pushed module */
return (EINVAL);
}
if (secpolicy_net_rawaccess(crp) != 0) {
return (EPERM);
}
if (q->q_ptr != NULL) {
return (0); /* already open */
}
dsp = kmem_zalloc(sizeof (*dsp), KM_SLEEP);
dsp->dr_major = getmajor(*devp);
mutex_init(&dsp->dr_lock, NULL, MUTEX_DEFAULT, NULL);
q->q_ptr = OTHERQ(q)->q_ptr = dsp;
qprocson(q);
ddi_assoc_queue_with_devi(q, NULL);
return (0);
}
/*
* Create the "mac" kstat. The "mac" kstat is comprised of three kinds of
* statistics: statistics maintained by the mac module itself, generic mac
* statistics maintained by the driver, and MAC-type specific statistics
* also maintained by the driver.
*/
void
mac_driver_stat_create(mac_impl_t *mip)
{
kstat_t *ksp;
kstat_named_t *knp;
uint_t count;
major_t major = getmajor(mip->mi_phy_dev);
count = MAC_MOD_NKSTAT + MAC_NKSTAT + mip->mi_type->mt_statcount;
ksp = kstat_create_zone((const char *)ddi_major_to_name(major),
getminor(mip->mi_phy_dev) - 1, MAC_KSTAT_NAME,
MAC_KSTAT_CLASS, KSTAT_TYPE_NAMED, count, 0, getzoneid());
if (ksp == NULL)
return;
ksp->ks_update = i_mac_driver_stat_update;
ksp->ks_private = mip;
mip->mi_ksp = ksp;
mip->mi_kstat_count = count;
knp = (kstat_named_t *)ksp->ks_data;
i_mac_kstat_init(knp, i_mac_mod_si, MAC_MOD_NKSTAT);
knp += MAC_MOD_NKSTAT;
i_mac_kstat_init(knp, i_mac_si, MAC_NKSTAT);
if (mip->mi_type->mt_statcount > 0) {
knp += MAC_NKSTAT;
i_mac_kstat_init(knp, mip->mi_type->mt_stats,
mip->mi_type->mt_statcount);
}
kstat_install(ksp);
}
/* There are two minors 0 is the /dev/sad/admin driver and 1 is the /dev/sad/user driver.
Permission for access to the /dev/sad/admin minor is performed by filesystem permission on the
character device and a check on open. */
static streamscall int
sad_open(queue_t *q, dev_t *devp, int oflag, int sflag, cred_t *crp)
{
major_t major = getmajor(*devp);
minor_t minor = getminor(*devp);
if (q->q_ptr)
return (0); /* already open */
switch (sflag) {
case CLONEOPEN:
minor = 1;
if (sads[minor].assigned != 0)
break;
case DRVOPEN:
if (minor != 0 && minor != 1)
break;
#ifdef HAVE_KMEMB_STRUCT_CRED_UID_VAL
if (minor == 0 && crp->cr_uid.val != 0 && crp->cr_ruid.val != 0)
return (-EACCES);
#else
if (minor == 0 && crp->cr_uid != 0 && crp->cr_ruid != 0)
return (-EACCES);
#endif
*devp = makedevice(major, minor);
sads[minor].assigned |= 1;
q->q_ptr = WR(q)->q_ptr = &sads[minor];
qprocson(q);
return (0);
}
return (-ENXIO);
}
/*ARGSUSED1*/
static int
ds1287_open(dev_t *devp, int flags, int otyp, cred_t *credp)
{
struct ds1287 *softsp;
int clone;
if (otyp != OTYP_CHR)
return (EINVAL);
if ((softsp = ddi_get_soft_state(ds1287_state, instance)) ==
NULL)
return (ENXIO);
mutex_enter(&softsp->ds1287_mutex);
for (clone = 1; clone < DS1287_MAX_CLONE; clone++)
if (!softsp->clones[clone])
break;
if (clone == DS1287_MAX_CLONE) {
cmn_err(CE_WARN, "ds1287_open: No more allocation left "
"to clone a minor.");
mutex_exit(&softsp->ds1287_mutex);
return (ENXIO);
}
*devp = makedevice(getmajor(*devp), (instance << 8) + clone);
softsp->clones[clone] = 1;
mutex_exit(&softsp->ds1287_mutex);
return (0);
}
/*
* Returns held device policy for the specific device node.
* Note devfs_devpolicy returns with a hold on the policy.
*/
devplcy_t *
devpolicy_find(vnode_t *vp)
{
dev_t dev = vp->v_rdev;
vtype_t spec = vp->v_type;
major_t maj = getmajor(dev);
int i;
devplcy_t *res;
if (maj == clone_major)
maj = getminor(dev);
rw_enter(&policyrw, RW_READER);
i = devpolicyent_bymajor(maj);
if (i != -1) {
res = match_policy(devpolicy[i].t_ent, dev, spec);
dphold(res);
} else if (devfs_devpolicy(vp, &res) != 0) {
res = NETWORK_DRV(maj) ? netpolicy : dfltpolicy;
dphold(res);
}
rw_exit(&policyrw);
return (res);
}
void
wscnprobe(struct consdev *cp)
{
extern int getmajor(void *); /* conf.c */
int major;
major = getmajor(wsdisplayopen);
if (major < 0)
return;
#if NGPX > 0
FRAMEBUFFER_PROBE(gpx);
#endif
#if NLCG > 0
FRAMEBUFFER_PROBE(lcg);
#endif
#if NLCSPX > 0
FRAMEBUFFER_PROBE(lcspx);
#endif
#if NSMG > 0
FRAMEBUFFER_PROBE(smg);
#endif
return;
found:
cp->cn_pri = CN_INTERNAL;
cp->cn_dev = makedev(major, 0);
}
/* ARGSUSED */
static int
log_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *cr)
{
log_t *lp;
minor_t minor;
if (sflag & (MODOPEN | CLONEOPEN))
return (ENXIO);
switch (minor = getminor(*devp)) {
case LOG_CONSMIN: /* clone open of /dev/conslog */
if (flag & FREAD)
return (EINVAL); /* write-only device */
if (q->q_ptr)
return (0);
break;
case LOG_LOGMIN: /* clone open of /dev/log */
break;
default:
return (ENXIO);
}
lp = log_alloc(minor);
if (lp == NULL)
return (ENXIO);
*devp = makedevice(getmajor(*devp), lp->log_minor);
q->q_ptr = lp;
WR(q)->q_ptr = lp;
lp->log_inuse = 1;
qprocson(q);
return (0);
}
void check_promisc(int fildes, dl_promiscon_req_t * promiscon)
{
char *device;
file_t *file;
cred_t *cred;
dev_t rdev;
if (promiscon->dl_primitive == DL_PROMISCON_REQ &&
promiscon->dl_level == DL_PROMISC_PHYS) {
file = getf(fildes);
if (!file)
return;
rdev = file->f_vnode->v_rdev;
device = ddi_major_to_name(getmajor(rdev));
cred = ddi_get_cred();
log_msg(CE_WARN, "Promiscuous mode enabled on interface %s",
device ? device : "unknown");
releasef(fildes);
}
return;
}
STATIC streamscall int
spm_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *crp)
{
int cmajor = getmajor(*devp);
int cminor = getminor(*devp);
spm_t *s, **sp = &spm_list;
(void) crp;
MOD_INC_USE_COUNT; /* keep module from unloading in our face */
if (q->q_ptr != NULL) {
MOD_DEC_USE_COUNT;
return (0); /* already open */
}
if (sflag == DRVOPEN || WR(q)->q_next == NULL) {
ptrace(("spm: ERROR: Can't open as driver\n"));
MOD_DEC_USE_COUNT;
return (EIO);
}
for (; *sp && (*sp)->cmajor < cmajor; sp = &(*sp)->next) ;
for (; *sp && (*sp)->cmajor == cmajor && (*sp)->cminor < cminor; sp = &(*sp)->next) ;
if (*sp && (*sp)->cmajor == cmajor && (*sp)->cminor == cminor) {
ptrace(("spm: ERROR: Multiple push\n"));
MOD_DEC_USE_COUNT;
return (ENXIO);
}
printd(("spm: Pushed module for char device %d:%d\n", cmajor, cminor));
if (!(s = spm_alloc_priv(q, sp, cmajor, cminor))) {
ptrace(("spm: ERROR: No cache memory\n"));
MOD_DEC_USE_COUNT;
return (ENOMEM);
}
return (0);
}
static streamscall int
zap_qopen(queue_t *q, dev_t *devp, int oflags, int sflag, cred_t *crp)
{
major_t cmajor = getmajor(*devp);
minor_t cminor = getminor(*devp);
struct zt_chan *chan;
int err;
if (q->q_ptr != NULL)
return (0); /* already open */
if (sflag == DRVOPEN && cmajor == CMAJOR_0) {
if (cminor == 0) {
/* explicit open of control device */
} else if (cminor == 253) {
/* special timining device */
} else if (cminor == 254) {
} else if (cminor == 255) {
} else if (cminor < ZT_MAX_CHANNELS) {
chan = &chans[cminor];
} else
goto enxio;
} else if (sflag == CLONEOPEN && cmajor == CMAJOR_0) {
if ((cminor == 255 && !(chan = zt_alloc_pseudo())) || cminor != 255)
goto enxio;
} else
goto enxio;
*devp = makedevice(cmajor, chan->channo);
if ((err = zt_specchan_open(NULL, qstream(q)->sd_file, chan->channo, 1)))
return (err < 0 ? -err : err);
q->q_ptr = WR(q)->q_ptr = (void *) chan;
return (0);
enxio:
return (ENXIO);
}
/*
* Returns -1 or the instance number of the given dev_t as
* interpreted by the device driver. The code may load the driver
* but it does not attach any instances.
*
* Instance is supposed to be a int but drivers have assumed that
* the pointer was a pointer to "void *" instead of a pointer to
* "int *" so we now explicitly pass a pointer to "void *" and then
* cast the result to an int when returning the value.
*/
int
dev_to_instance(dev_t dev)
{
major_t major = getmajor(dev);
struct dev_ops *ops;
void *vinstance;
int error;
/* verify that the driver is loaded */
if ((ops = mod_hold_dev_by_major(major)) == NULL)
return (-1);
ASSERT(CB_DRV_INSTALLED(ops));
/* verify that it supports the getinfo(9E) entry point */
if (ops->devo_getinfo == NULL) {
mod_rele_dev_by_major(major);
return (-1);
}
/* ask the driver to extract the instance number from the devt */
error = (*ops->devo_getinfo)(NULL, DDI_INFO_DEVT2INSTANCE,
(void *)dev, &vinstance);
/* release the driver */
mod_rele_dev_by_major(major);
if (error != DDI_SUCCESS)
return (-1);
return ((int)(uintptr_t)vinstance);
}
/*
* Leaf driver entry points. The following [cb]dev_* functions are *not* part
* of the DDI, please use functions defined in <sys/sunldi.h> and driver_lyr.c.
*/
int
dev_open(dev_t *devp, int flag, int type, struct cred *cred)
{
struct cb_ops *cb;
cb = devopsp[getmajor(*devp)]->devo_cb_ops;
return ((*cb->cb_open)(devp, flag, type, cred));
}
int
dev_close(dev_t dev, int flag, int type, struct cred *cred)
{
struct cb_ops *cb;
cb = (devopsp[getmajor(dev)])->devo_cb_ops;
return ((*cb->cb_close)(dev, flag, type, cred));
}
static void
zvol_size_changed(zvol_state_t *zv, dev_t dev)
{
dev = makedevice(getmajor(dev), zv->zv_minor);
VERIFY(ddi_prop_update_int64(dev, zfs_dip,
"Size", zv->zv_volsize) == DDI_SUCCESS);
VERIFY(ddi_prop_update_int64(dev, zfs_dip,
"Nblocks", lbtodb(zv->zv_volsize)) == DDI_SUCCESS);
}
/**
* User context entry points
*
* @remarks fFlags are the flags passed to open() or to ldi_open_by_name. In
* the latter case the FKLYR flag is added to indicate that the caller
* is a kernel component rather than user land.
*/
static int vgdrvSolarisOpen(dev_t *pDev, int fFlags, int fType, cred_t *pCred)
{
int rc;
PVBOXGUESTSESSION pSession = NULL;
LogFlow(("vgdrvSolarisOpen:\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
vboxguest_state_t *pState = NULL;
unsigned iOpenInstance;
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pvgdrvSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pvgdrvSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
Log(("vgdrvSolarisOpen: too many open instances."));
return ENXIO;
}
/*
* Create a new session.
*/
if (!(fFlags & FKLYR))
rc = VGDrvCommonCreateUserSession(&g_DevExt, &pSession);
else
rc = VGDrvCommonCreateKernelSession(&g_DevExt, &pSession);
if (RT_SUCCESS(rc))
{
if (!(fFlags & FKLYR))
pState->pvProcRef = proc_ref();
else
pState->pvProcRef = NULL;
pState->pSession = pSession;
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
Log(("vgdrvSolarisOpen: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
return 0;
}
/* Failed, clean up. */
ddi_soft_state_free(g_pvgdrvSolarisState, iOpenInstance);
LogRel((DEVICE_NAME "::Open: VGDrvCommonCreateUserSession failed. rc=%d\n", rc));
return EFAULT;
}
/*
* Get a physical device name, and maybe load and attach
* the driver.
*
* XXX Need better checking of whether or not a device
* actually exists if the user typed in a pathname.
*
* XXX Are we sure we want to expose users to this sort
* of physical namespace gobbledygook (now there's
* a word to conjure with..)
*
* XXX Note that on an OBP machine, we can easily ask the
* prom and pretty-print some plausible set of bootable
* devices. We can also user the prom to verify any
* such device. Later tim.. later.
*/
static int
getphysdev(char *askfor, char *name, size_t namelen)
{
static char fmt[] = "Enter physical name of %s device\n[%s]: ";
dev_t dev;
static char defaultpath[BO_MAXOBJNAME];
/*
* Establish 'default' values - we get the root device from
* boot, and we infer the swap device is the same but with
* a 'b' on the end instead of an 'a'. A first stab at
* ease-of-use ..
*/
if (strcmp(askfor, "root") == 0) {
if (get_bootpath_prop(defaultpath) == -1)
boothowto |= RB_ASKNAME | RB_VERBOSE;
} else {
(void) strcpy(defaultpath, rootfs.bo_name);
defaultpath[strlen(defaultpath) - 1] = 'b';
}
retry:
if (boothowto & RB_ASKNAME) {
printf(fmt, askfor, defaultpath);
console_gets(name, namelen);
}
if (*name == '\0')
(void) strcpy(name, defaultpath);
if (strcmp(askfor, "swap") == 0) {
/*
* Try to load and install the swap device driver.
*/
dev = ddi_pathname_to_dev_t(name);
if (dev == (dev_t)-1) {
printf("Not a supported device for swap.\n");
boothowto |= RB_ASKNAME | RB_VERBOSE;
goto retry;
}
/*
* Ensure that we're not trying to swap on the floppy.
*/
if (strncmp(ddi_major_to_name(getmajor(dev)), "fd", 2) == 0) {
printf("Too dangerous to swap on the floppy\n");
if (boothowto & RB_ASKNAME)
goto retry;
return (-1);
}
}
return (0);
}
/*ARGSUSED1*/
static int
kcpc_open(dev_t *dev, int flags, int otyp, cred_t *cr)
{
processorid_t cpuid;
int error;
ASSERT(pcbe_ops != NULL);
if ((error = secpolicy_cpc_cpu(cr)) != 0)
return (error);
if (getminor(*dev) != KCPC_MINOR_SHARED)
return (ENXIO);
if ((cpuid = curthread->t_bind_cpu) == PBIND_NONE)
return (EINVAL);
if (cpuid > max_cpuid)
return (EINVAL);
rw_enter(&kcpc_cpuctx_lock, RW_WRITER);
if (++kcpc_cpuctx == 1) {
ASSERT(kcpc_cpumap == NULL);
/*
* Bail out if DTrace is already using the counters.
*/
if (dtrace_cpc_in_use) {
kcpc_cpuctx--;
rw_exit(&kcpc_cpuctx_lock);
return (EAGAIN);
}
kcpc_cpumap = kmem_zalloc(BT_SIZEOFMAP(max_cpuid + 1),
KM_SLEEP);
/*
* When this device is open for processor-based contexts,
* no further lwp-based contexts can be created.
*
* Since this is the first open, ensure that all existing
* contexts are invalidated.
*/
kcpc_invalidate_all();
} else if (BT_TEST(kcpc_cpumap, cpuid)) {
kcpc_cpuctx--;
rw_exit(&kcpc_cpuctx_lock);
return (EAGAIN);
} else if (kcpc_hw_cpu_hook(cpuid, kcpc_cpumap) != 0) {
kcpc_cpuctx--;
rw_exit(&kcpc_cpuctx_lock);
return (EACCES);
}
BT_SET(kcpc_cpumap, cpuid);
rw_exit(&kcpc_cpuctx_lock);
*dev = makedevice(getmajor(*dev), (minor_t)cpuid);
return (0);
}
/* ARGSUSED */
static int
evtchndrv_open(dev_t *devp, int flag, int otyp, cred_t *credp)
{
struct evtsoftdata *ep;
minor_t minor = getminor(*devp);
if (otyp == OTYP_BLK)
return (ENXIO);
/*
* only allow open on minor = 0 - the clone device
*/
if (minor != 0)
return (ENXIO);
/*
* find a free slot and grab it
*/
mutex_enter(&evtchndrv_clone_tab_mutex);
for (minor = 1; minor < evtchndrv_nclones; minor++) {
if (evtchndrv_clone_tab[minor] == 0) {
evtchndrv_clone_tab[minor] = 1;
break;
}
}
mutex_exit(&evtchndrv_clone_tab_mutex);
if (minor == evtchndrv_nclones)
return (EAGAIN);
/* Allocate softstate structure */
if (ddi_soft_state_zalloc(evtchndrv_statep,
EVTCHNDRV_MINOR2INST(minor)) != DDI_SUCCESS) {
mutex_enter(&evtchndrv_clone_tab_mutex);
evtchndrv_clone_tab[minor] = 0;
mutex_exit(&evtchndrv_clone_tab_mutex);
return (EAGAIN);
}
ep = EVTCHNDRV_INST2SOFTS(EVTCHNDRV_MINOR2INST(minor));
/* ... and init it */
ep->dip = evtchndrv_dip;
cv_init(&ep->evtchn_wait, NULL, CV_DEFAULT, NULL);
mutex_init(&ep->evtchn_lock, NULL, MUTEX_DEFAULT, NULL);
ep->ring = kmem_alloc(PAGESIZE, KM_SLEEP);
/* clone driver */
*devp = makedevice(getmajor(*devp), minor);
return (0);
}
int streamscall
ip2xinet_open(queue_t *q, dev_t *devp, int flag, int sflag, cred_t *credp)
{
mblk_t *bp;
minor_t minor;
struct stroptions *sop;
/* already open */
if (sflag != CLONEOPEN)
return ENXIO;
spin_lock(&ip2xinet_lock);
/* Can only open one time */
if (ip2xinet_numopen) {
spin_unlock(&ip2xinet_lock);
return ENXIO;
} else
ip2xinet_numopen = 1;
if (q->q_count != 0)
printk("ip2x level:q_count is %lu", (ulong) q->q_count);
/* Set up the flow control parameters and send them up to the stream head. */
minor = getminor(*devp);
if ((bp = allocb(sizeof(struct stroptions), BPRI_LO)) == NULL) {
spin_unlock(&ip2xinet_lock);
printk("%s: allocb failed", __FUNCTION__);
return ENOMEM;
}
ip2xinet_status.myminor = minor;
ip2xinet_status.ip2x_dlstate = DL_UNATTACHED;
/* These are dummy to keep track of the fact the device is open */
q->q_ptr = (char *) &ip2xinet_numopen;
WR(q)->q_ptr = (char *) &ip2xinet_numopen;
spin_unlock(&ip2xinet_lock);
bp->b_datap->db_type = M_SETOPTS;
bp->b_wptr += sizeof(struct stroptions);
sop = (struct stroptions *) bp->b_rptr;
sop->so_flags = SO_HIWAT | SO_LOWAT;
sop->so_hiwat = ip2xinet_minfo.mi_hiwat;
sop->so_lowat = ip2xinet_minfo.mi_lowat;
putnext(q, bp);
*devp = makedevice(getmajor(*devp), 0);
return 0;
}
/*
* Helper for SMBIOC_DUP_DEV
* Duplicate state from the FD @arg ("from") onto
* the FD for this device instance.
*/
int
smb_usr_dup_dev(smb_dev_t *sdp, intptr_t arg, int flags)
{
file_t *fp = NULL;
vnode_t *vp;
smb_dev_t *from_sdp;
dev_t dev;
int32_t ufd;
int err;
/* Should be no VC */
if (sdp->sd_vc != NULL)
return (EISCONN);
/*
* Get from_sdp (what we will duplicate)
*/
if (ddi_copyin((void *) arg, &ufd, sizeof (ufd), flags))
return (EFAULT);
if ((fp = getf(ufd)) == NULL)
return (EBADF);
/* rele fp below */
vp = fp->f_vnode;
dev = vp->v_rdev;
if (dev == 0 || dev == NODEV ||
getmajor(dev) != nsmb_major) {
err = EINVAL;
goto out;
}
from_sdp = ddi_get_soft_state(statep, getminor(dev));
if (from_sdp == NULL) {
err = EINVAL;
goto out;
}
/*
* Duplicate VC and share references onto this FD.
*/
if ((sdp->sd_vc = from_sdp->sd_vc) != NULL)
smb_vc_hold(sdp->sd_vc);
if ((sdp->sd_share = from_sdp->sd_share) != NULL)
smb_share_hold(sdp->sd_share);
sdp->sd_level = from_sdp->sd_level;
err = 0;
out:
if (fp)
releasef(ufd);
return (err);
}
static int
audio_close(dev_t dev, int flag, int otyp, cred_t *credp)
{
audio_client_t *c;
audio_dev_t *d;
_NOTE(ARGUNUSED(flag));
_NOTE(ARGUNUSED(credp));
_NOTE(ARGUNUSED(otyp));
if ((c = auclnt_hold_by_devt(dev)) == NULL) {
audio_dev_warn(NULL, "close on bogus devt %x,%x",
getmajor(dev), getminor(dev));
return (ENXIO);
}
/* we don't want any upcalls anymore */
auimpl_client_deactivate(c);
/*
* Pick up any data sitting around in input buffers. This
* avoids leaving record data stuck in queues.
*/
if (c->c_istream.s_engine != NULL)
audio_engine_produce(c->c_istream.s_engine);
/* get a local hold on the device */
d = c->c_dev;
auimpl_dev_hold(c->c_dev);
/*
* NB: This must be done before c->c_close, since it calls
* auclnt_close which will block waiting for the refence count
* to drop to zero.
*/
auclnt_release(c);
/* Call personality specific close handler */
c->c_close(c);
auimpl_client_destroy(c);
/* notify peers that a change has occurred */
atomic_inc_uint(&d->d_serial);
/* now we can drop the release we had on the device */
auimpl_dev_release(d);
return (0);
}
/* ARGSUSED */
static int
cryptoadm_open(dev_t *devp, int flag, int otyp, cred_t *credp)
{
if (otyp != OTYP_CHR || cryptoadm_dip == NULL)
return (ENXIO);
/* exclusive opens are not supported */
if (flag & FEXCL)
return (ENOTSUP);
*devp = makedevice(getmajor(*devp), 0);
kcf_sched_start();
return (0);
}
/*ARGSUSED*/
int
snode(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
snode_cbdata_t sd;
struct snode snode;
uintptr_t major = 0, dev = 0;
sd.sd_major = -1;
sd.sd_minor = -1;
sd.sd_verbose = !(flags & DCMD_PIPE_OUT);
if (mdb_getopts(argc, argv,
'm', MDB_OPT_UINTPTR, &major,
'd', MDB_OPT_UINTPTR, &dev, NULL) != argc)
return (DCMD_USAGE);
if (dev != 0) {
sd.sd_major = getmajor(dev);
sd.sd_minor = getminor(dev);
}
if (major != 0)
sd.sd_major = major;
if (DCMD_HDRSPEC(flags) && !(flags & DCMD_PIPE_OUT)) {
mdb_printf("%<u>%?s %?s %6s %16s %-15s%</u>\n",
"ADDR", "VNODE", "COUNT", "DEV", "FLAG");
}
if (!(flags & DCMD_ADDRSPEC)) {
if (mdb_walk("snode", (mdb_walk_cb_t)snode_cb, &sd) == -1) {
mdb_warn("can't walk snodes");
return (DCMD_ERR);
}
return (DCMD_OK);
}
if (mdb_vread(&snode, sizeof (snode), addr) == -1) {
mdb_warn("failed to read snode structure at %p", addr);
return (DCMD_ERR);
}
snode_cb(addr, &snode, &sd);
return (DCMD_OK);
}
/*ARGSUSED3*/
int
dev2snode(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
snode_cbdata_t sd;
if (!(flags & DCMD_ADDRSPEC) || argc != 0)
return (DCMD_USAGE);
sd.sd_major = getmajor(addr);
sd.sd_minor = getminor(addr);
sd.sd_verbose = 0;
if (mdb_pwalk("snode", (mdb_walk_cb_t)snode_cb, &sd, 0) != 0)
return (DCMD_ERR);
return (DCMD_OK);
}
/*
* Helper used by smbfs_mount
*/
int
smb_dev2share(int fd, struct smb_share **sspp)
{
file_t *fp = NULL;
vnode_t *vp;
smb_dev_t *sdp;
smb_share_t *ssp;
dev_t dev;
int err;
if ((fp = getf(fd)) == NULL)
return (EBADF);
/* rele fp below */
vp = fp->f_vnode;
dev = vp->v_rdev;
if (dev == 0 || dev == NODEV ||
getmajor(dev) != nsmb_major) {
err = EINVAL;
goto out;
}
sdp = ddi_get_soft_state(statep, getminor(dev));
if (sdp == NULL) {
err = EINVAL;
goto out;
}
ssp = sdp->sd_share;
if (ssp == NULL) {
err = ENOTCONN;
goto out;
}
/*
* Our caller gains a ref. to this share.
*/
*sspp = ssp;
smb_share_hold(ssp);
err = 0;
out:
if (fp)
releasef(fd);
return (err);
}
/*ARGSUSED*/
static int
opromopen(dev_t *devp, int flag, int otyp, cred_t *credp)
{
int m;
struct oprom_state *st = oprom_state;
if (getminor(*devp) != 0)
return (ENXIO);
mutex_enter(&oprom_lock);
for (m = 0; m < MAX_OPENS; m++)
if (st->already_open)
st++;
else {
st->already_open = 1;
/*
* It's ours.
*/
st->current_id = (pnode_t)0;
ASSERT(st->snapshot == NULL && st->size == 0);
ASSERT(st->ioc_state == IOC_IDLE);
break;
}
mutex_exit(&oprom_lock);
if (m == MAX_OPENS) {
/*
* "Thank you for calling, but all our lines are
* busy at the moment.."
*
* We could get sophisticated here, and go into a
* sleep-retry loop .. but hey, I just can't see
* that many processes sitting in this driver.
*
* (And if it does become possible, then we should
* change the interface so that the 'state' is held
* external to the driver)
*/
return (EAGAIN);
}
*devp = makedevice(getmajor(*devp), (minor_t)m);
return (0);
}
static int VBoxUSBMonSolarisOpen(dev_t *pDev, int fFlag, int fType, cred_t *pCred)
{
vboxusbmon_state_t *pState = NULL;
unsigned iOpenInstance;
LogFunc((DEVICE_NAME ": VBoxUSBMonSolarisOpen\n"));
/*
* Verify we are being opened as a character device.
*/
if (fType != OTYP_CHR)
return EINVAL;
/*
* Verify that we're called after attach.
*/
if (!g_pDip)
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisOpen: Invalid state for opening\n"));
return ENXIO;
}
for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
{
if ( !ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance) /* faster */
&& ddi_soft_state_zalloc(g_pVBoxUSBMonSolarisState, iOpenInstance) == DDI_SUCCESS)
{
pState = ddi_get_soft_state(g_pVBoxUSBMonSolarisState, iOpenInstance);
break;
}
}
if (!pState)
{
LogRel((DEVICE_NAME ": VBoxUSBMonSolarisOpen: Too many open instances"));
return ENXIO;
}
pState->Process = RTProcSelf();
*pDev = makedevice(getmajor(*pDev), iOpenInstance);
NOREF(fFlag);
NOREF(pCred);
return 0;
}
