diff options
Diffstat (limited to 'usr/src/uts/common')
| -rw-r--r-- | usr/src/uts/common/io/zfd.c | 15 | ||||
| -rw-r--r-- | usr/src/uts/common/sys/zfd.h | 5 |
2 files changed, 20 insertions, 0 deletions
diff --git a/usr/src/uts/common/io/zfd.c b/usr/src/uts/common/io/zfd.c index 0b52a9179d..3edaa62bbe 100644 --- a/usr/src/uts/common/io/zfd.c +++ b/usr/src/uts/common/io/zfd.c @@ -694,6 +694,21 @@ zfd_wput(queue_t *qp, mblk_t *mp) M_HANGUP); miocack(qp, mp, 0, 0); return; + case ZFD_HAS_SLAVE: + /* + * The process that passed the ioctl must be running in + * the global zone. + */ + if (crgetzoneid(iocbp->ioc_cr) != GLOBAL_ZONEID) { + miocack(qp, mp, 0, EINVAL); + return; + } + if ((zfds->zfd_state & ZFD_STATE_SOPEN) != 0) { + miocack(qp, mp, 0, 0); + } else { + miocack(qp, mp, 0, ENOTTY); + } + return; default: break; } diff --git a/usr/src/uts/common/sys/zfd.h b/usr/src/uts/common/sys/zfd.h index 21c52460f2..acf9ce8d33 100644 --- a/usr/src/uts/common/sys/zfd.h +++ b/usr/src/uts/common/sys/zfd.h @@ -51,6 +51,11 @@ extern "C" { */ #define ZFD_EOF (ZFD_IOC | 1) +/* + * This ioctl succeeds if the slave side is open. + */ +#define ZFD_HAS_SLAVE (ZFD_IOC | 2) + #ifdef __cplusplus } #endif |