diff options
Diffstat (limited to 'usr/src/uts/common/io/ptm.c')
| -rw-r--r-- | usr/src/uts/common/io/ptm.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/usr/src/uts/common/io/ptm.c b/usr/src/uts/common/io/ptm.c index 400e9ffd10..07ffddc123 100644 --- a/usr/src/uts/common/io/ptm.c +++ b/usr/src/uts/common/io/ptm.c @@ -447,6 +447,18 @@ ptmclose(queue_t *rqp, int flag, cred_t *credp) return (0); } +static boolean_t +ptmptsopencb(ptmptsopencb_arg_t arg) +{ + struct pt_ttys *ptmp = (struct pt_ttys *)arg; + boolean_t rval; + + PT_ENTER_READ(ptmp); + rval = (ptmp->pt_nullmsg != NULL); + PT_EXIT_READ(ptmp); + return (rval); +} + /* * The wput procedure will only handle ioctl and flush messages. */ @@ -574,6 +586,41 @@ ptmwput(queue_t *qp, mblk_t *mp) miocack(qp, mp, 0, 0); break; } + case PTMPTSOPENCB: + { + mblk_t *dp; /* ioctl reply data */ + ptmptsopencb_t *ppocb; + + /* only allow the kernel to invoke this ioctl */ + if (iocp->ioc_cr != kcred) { + miocnak(qp, mp, 0, EINVAL); + break; + } + + /* we don't support transparent ioctls */ + ASSERT(iocp->ioc_count != TRANSPARENT); + if (iocp->ioc_count == TRANSPARENT) { + miocnak(qp, mp, 0, EINVAL); + break; + } + + /* allocate a response message */ + dp = allocb(sizeof (ptmptsopencb_t), BPRI_MED); + if (dp == NULL) { + miocnak(qp, mp, 0, EAGAIN); + break; + } + + /* initialize the ioctl results */ + ppocb = (ptmptsopencb_t *)dp->b_rptr; + ppocb->ppocb_func = ptmptsopencb; + ppocb->ppocb_arg = (ptmptsopencb_arg_t)ptmp; + + /* send the reply data */ + mioc2ack(mp, dp, sizeof (ptmptsopencb_t), 0); + qreply(qp, mp); + break; + } } break; |