X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..04b8595b18b1b41ac7a206e4b3d51a635f8413d7:/bsd/kern/tty_pty.c?ds=sidebyside diff --git a/bsd/kern/tty_pty.c b/bsd/kern/tty_pty.c index 8fb35c04a..f4bb4dac6 100644 --- a/bsd/kern/tty_pty.c +++ b/bsd/kern/tty_pty.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1997-2006 Apple Computer, Inc. All rights reserved. + * Copyright (c) 1997-2013 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -80,34 +80,11 @@ #include #include -#define d_devtotty_t struct tty ** - -#ifdef d_stop_t -#undef d_stop_t +#if CONFIG_MACF +#include #endif -typedef void d_stop_t(struct tty *tp, int rw); - -/* XXX function should be removed??? */ -int pty_init(int n_ptys); - -/* XXX should be a devfs function */ -int _devfs_setattr(void * handle, unsigned short mode, uid_t uid, gid_t gid); - -static void ptsstart(struct tty *tp); -static void ptcwakeup(struct tty *tp, int flag); -__private_extern__ d_open_t ptsopen; -__private_extern__ d_close_t ptsclose; -__private_extern__ d_read_t ptsread; -__private_extern__ d_write_t ptswrite; -__private_extern__ d_ioctl_t ptyioctl; -__private_extern__ d_stop_t ptsstop; -__private_extern__ d_devtotty_t ptydevtotty; -__private_extern__ d_open_t ptcopen; -__private_extern__ d_close_t ptcclose; -__private_extern__ d_read_t ptcread; -__private_extern__ d_write_t ptcwrite; -__private_extern__ d_select_t ptcselect; +#include "tty_dev.h" #if NPTY == 1 #undef NPTY @@ -115,868 +92,83 @@ __private_extern__ d_select_t ptcselect; #warning You have only one pty defined, redefining to 32. #endif -#define BUFSIZ 100 /* Chunk size iomoved to/from user */ +#define PTY_MAJOR 5 +#define TTY_MAJOR 4 /* * pts == /dev/tty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv] * ptc == /dev/pty[pqrsPQRS][0123456789abcdefghijklmnopqrstuv] */ -/* All references to have been changed to indirections in the file */ -__private_extern__ struct tty *pt_tty[NPTY] = { NULL }; +static struct ptmx_ioctl pt_ioctl[NPTY]; -static struct pt_ioctl { - int pt_flags; - struct selinfo pt_selr, pt_selw; - u_char pt_send; - u_char pt_ucntl; - void *pt_devhandle; /* slave device handle for grantpt() */ -} pt_ioctl[NPTY]; /* XXX */ -static int npty = NPTY; /* for pstat -t */ - -#define PF_PKT 0x08 /* packet mode */ -#define PF_STOPPED 0x10 /* user told stopped */ -#define PF_REMOTE 0x20 /* remote and flow controlled input */ -#define PF_NOSTOP 0x40 -#define PF_UCNTL 0x80 /* user control mode */ +int pty_init(int n_ptys); #ifndef DEVFS int pty_init(__unused int n_ptys) { - return 0; + return 0; } -#else +#else // DEVFS #include #define START_CHAR 'p' #define HEX_BASE 16 -int -pty_init(int n_ptys) -{ - int i; - int j; - /* create the pseudo tty device nodes */ - for (j = 0; j < 10; j++) { - for (i = 0; i < HEX_BASE; i++) { - int m = j * HEX_BASE + i; - if (m == n_ptys) - goto done; - pt_ioctl[m].pt_devhandle = devfs_make_node(makedev(4, m), - DEVFS_CHAR, UID_ROOT, GID_WHEEL, 0666, - "tty%c%x", j + START_CHAR, i); - (void)devfs_make_node(makedev(5, m), - DEVFS_CHAR, UID_ROOT, GID_WHEEL, 0666, - "pty%c%x", j + START_CHAR, i); - } - } - done: - return (0); -} -#endif /* DEVFS */ +static struct tty_dev_t _pty_driver; -__private_extern__ int -ptsopen(dev_t dev, int flag, __unused int devtype, __unused struct proc *p) +static struct ptmx_ioctl * +pty_get_ioctl(int minor, int open_flag) { - struct tty *tp; - int error; - - /* - * You will see this sort of code coming up in diffs later both - * the ttymalloc and the tp indirection. - */ - if (minor(dev) >= npty) { - error = ENXIO; - goto err; + if (minor >= NPTY) { + return NULL; } - if (!pt_tty[minor(dev)]) { - /* - * If we can't allocate a new one, act as if we had run out - * of device nodes. - */ - if ((tp = pt_tty[minor(dev)] = ttymalloc()) == NULL) { - error = ENXIO; - goto err; + struct ptmx_ioctl *pti = &pt_ioctl[minor]; + if (open_flag & (PF_OPEN_M|PF_OPEN_S)) { + if (!pti->pt_tty) { + pti->pt_tty = ttymalloc(); } - } else - tp = pt_tty[minor(dev)]; - - tty_lock(tp); - - if ((tp->t_state & TS_ISOPEN) == 0) { - termioschars(&tp->t_termios); /* Set up default chars */ - tp->t_iflag = TTYDEF_IFLAG; - tp->t_oflag = TTYDEF_OFLAG; - tp->t_lflag = TTYDEF_LFLAG; - tp->t_cflag = TTYDEF_CFLAG; - tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; - ttsetwater(tp); /* would be done in xxparam() */ - } else if (tp->t_state&TS_XCLUDE && suser(kauth_cred_get(), NULL)) { - error = EBUSY; - goto out; - } - if (tp->t_oproc) /* Ctrlr still around. */ - (void)(*linesw[tp->t_line].l_modem)(tp, 1); - while ((tp->t_state & TS_CARR_ON) == 0) { - if (flag&FNONBLOCK) - break; - error = ttysleep(tp, TSA_CARR_ON(tp), TTIPRI | PCATCH, - "ptsopn", 0); - if (error) - goto out; - } - error = (*linesw[tp->t_line].l_open)(dev, tp); - if (error == 0) - ptcwakeup(tp, FREAD|FWRITE); - -out: - tty_unlock(tp); -err: - return (error); -} - -__private_extern__ int -ptsclose(dev_t dev, int flag, __unused int mode, __unused proc_t p) -{ - struct tty *tp; - int err; - - /* - * This is temporary until the VSX conformance tests - * are fixed. They are hanging with a deadlock - * where close(pts) will not complete without t_timeout set - */ -#define FIX_VSX_HANG 1 -#ifdef FIX_VSX_HANG - int save_timeout; -#endif - - tp = pt_tty[minor(dev)]; - tty_lock(tp); -#ifdef FIX_VSX_HANG - save_timeout = tp->t_timeout; - tp->t_timeout = 60; -#endif - err = (*linesw[tp->t_line].l_close)(tp, flag); - ptsstop(tp, FREAD|FWRITE); - (void) ttyclose(tp); -#ifdef FIX_VSX_HANG - tp->t_timeout = save_timeout; -#endif - tty_unlock(tp); - return (err); -} - -__private_extern__ int -ptsread(dev_t dev, struct uio *uio, int flag) -{ - struct proc *p = current_proc(); - struct tty *tp = pt_tty[minor(dev)]; - struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; - int error = 0; - struct uthread *ut; - struct pgrp *pg; - - tty_lock(tp); - - ut = (struct uthread *)get_bsdthread_info(current_thread()); -again: - if (pti->pt_flags & PF_REMOTE) { - while (isbackground(p, tp)) { - if ((p->p_sigignore & sigmask(SIGTTIN)) || - (ut->uu_sigmask & sigmask(SIGTTIN)) || - p->p_lflag & P_LPPWAIT) { - error = EIO; - goto out; - } - - - pg = proc_pgrp(p); - if (pg == PGRP_NULL) { - error = EIO; - goto out; - } - /* - * SAFE: We about to drop the lock ourselves by - * SAFE: erroring out or sleeping anyway. - */ - tty_unlock(tp); - if (pg->pg_jobc == 0) { - pg_rele(pg); - tty_lock(tp); - error = EIO; - goto out; - } - pgsignal(pg, SIGTTIN, 1); - pg_rele(pg); - tty_lock(tp); - - error = ttysleep(tp, &lbolt, TTIPRI | PCATCH | PTTYBLOCK, "ptsbg", - 0); - if (error) - goto out; - } - if (tp->t_canq.c_cc == 0) { - if (flag & IO_NDELAY) { - error = EWOULDBLOCK; - goto out; - } - error = ttysleep(tp, TSA_PTS_READ(tp), TTIPRI | PCATCH, - "ptsin", 0); - if (error) - goto out; - goto again; + if (!pti->pt_tty) { + return NULL; } - while (tp->t_canq.c_cc > 1 && uio_resid(uio) > 0) { - int cc; - char buf[BUFSIZ]; - - cc = min(uio_resid(uio), BUFSIZ); - // Don't copy the very last byte - cc = min(cc, tp->t_canq.c_cc - 1); - cc = q_to_b(&tp->t_canq, (u_char *)buf, cc); - error = uiomove(buf, cc, uio); - if (error) - break; - } - if (tp->t_canq.c_cc == 1) - (void) getc(&tp->t_canq); - if (tp->t_canq.c_cc) - goto out; - } else - if (tp->t_oproc) - error = (*linesw[tp->t_line].l_read)(tp, uio, flag); - ptcwakeup(tp, FWRITE); -out: - tty_unlock(tp); - return (error); -} - -/* - * Write to pseudo-tty. - * Wakeups of controlling tty will happen - * indirectly, when tty driver calls ptsstart. - */ -__private_extern__ int -ptswrite(dev_t dev, struct uio *uio, int flag) -{ - struct tty *tp; - int error; - - tp = pt_tty[minor(dev)]; - - tty_lock(tp); - - if (tp->t_oproc == 0) - error = EIO; - else - error = (*linesw[tp->t_line].l_write)(tp, uio, flag); - - tty_unlock(tp); - - return (error); -} - -/* - * Start output on pseudo-tty. - * Wake up process selecting or sleeping for input from controlling tty. - * - * t_oproc for this driver; called from within the line discipline - * - * Locks: Assumes tp is locked on entry, remains locked on exit - */ -static void -ptsstart(struct tty *tp) -{ - struct pt_ioctl *pti = &pt_ioctl[minor(tp->t_dev)]; - - if (tp->t_state & TS_TTSTOP) - goto out; - if (pti->pt_flags & PF_STOPPED) { - pti->pt_flags &= ~PF_STOPPED; - pti->pt_send = TIOCPKT_START; - } - ptcwakeup(tp, FREAD); -out: - return; -} - -/* - * Locks: Assumes tty_lock() is held over this call. - */ -static void -ptcwakeup(struct tty *tp, int flag) -{ - struct pt_ioctl *pti = &pt_ioctl[minor(tp->t_dev)]; - - if (flag & FREAD) { - selwakeup(&pti->pt_selr); - wakeup(TSA_PTC_READ(tp)); - } - if (flag & FWRITE) { - selwakeup(&pti->pt_selw); - wakeup(TSA_PTC_WRITE(tp)); } + return pti; } -__private_extern__ int -ptcopen(dev_t dev, __unused int flag, __unused int devtype, __unused proc_t p) +static int +pty_get_name(int minor, char *buffer, size_t size) { - struct tty *tp; - struct pt_ioctl *pti; - int error = 0; - - if (minor(dev) >= npty) { - error = ENXIO; - goto out; - } - if(!pt_tty[minor(dev)]) { - tp = pt_tty[minor(dev)] = ttymalloc(); - } else - tp = pt_tty[minor(dev)]; - - tty_lock(tp); - - /* If master is open OR slave is still draining, pty is still busy */ - if (tp->t_oproc || (tp->t_state & TS_ISOPEN)) { - error = EBUSY; - } else { - tp->t_oproc = ptsstart; - CLR(tp->t_state, TS_ZOMBIE); -#ifdef sun4c - tp->t_stop = ptsstop; -#endif - (void)(*linesw[tp->t_line].l_modem)(tp, 1); - tp->t_lflag &= ~EXTPROC; - pti = &pt_ioctl[minor(dev)]; - pti->pt_flags = 0; - pti->pt_send = 0; - pti->pt_ucntl = 0; - } - - tty_unlock(tp); - -out: - return (error); + return snprintf(buffer, size, "/dev/tty%c%x", + START_CHAR + (minor / HEX_BASE), + minor % HEX_BASE); } -__private_extern__ int -ptcclose(dev_t dev, __unused int flags, __unused int fmt, __unused proc_t p) +int +pty_init(int n_ptys) { - struct tty *tp = pt_tty[minor(dev)]; - - tty_lock(tp); - - (void)(*linesw[tp->t_line].l_modem)(tp, 0); - - /* - * XXX MDMBUF makes no sense for ptys but would inhibit the above - * l_modem(). CLOCAL makes sense but isn't supported. Special - * l_modem()s that ignore carrier drop make no sense for ptys but - * may be in use because other parts of the line discipline make - * sense for ptys. Recover by doing everything that a normal - * ttymodem() would have done except for sending a SIGHUP. - */ - if (tp->t_state & TS_ISOPEN) { - tp->t_state &= ~(TS_CARR_ON | TS_CONNECTED); - tp->t_state |= TS_ZOMBIE; - ttyflush(tp, FREAD | FWRITE); - } - - tp->t_oproc = 0; /* mark closed */ - - tty_unlock(tp); - + int i; + int j; + + /* create the pseudo tty device nodes */ + for (j = 0; j < 10; j++) { + for (i = 0; i < HEX_BASE; i++) { + int m = j * HEX_BASE + i; + if (m == n_ptys) + goto done; + pt_ioctl[m].pt_devhandle = devfs_make_node(makedev(TTY_MAJOR, m), + DEVFS_CHAR, UID_ROOT, GID_WHEEL, 0666, + "tty%c%x", j + START_CHAR, i); + (void)devfs_make_node(makedev(PTY_MAJOR, m), + DEVFS_CHAR, UID_ROOT, GID_WHEEL, 0666, + "pty%c%x", j + START_CHAR, i); + } + } +done: + _pty_driver.master = PTY_MAJOR; + _pty_driver.slave = TTY_MAJOR; + _pty_driver.open_reset = 1; + _pty_driver.open = &pty_get_ioctl; + _pty_driver.name = &pty_get_name; + tty_dev_register(&_pty_driver); return (0); } - -__private_extern__ int -ptcread(dev_t dev, struct uio *uio, int flag) -{ - struct tty *tp = pt_tty[minor(dev)]; - struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; - char buf[BUFSIZ]; - int error = 0, cc; - - tty_lock(tp); - - /* - * We want to block until the slave - * is open, and there's something to read; - * but if we lost the slave or we're NBIO, - * then return the appropriate error instead. - */ - for (;;) { - if (tp->t_state&TS_ISOPEN) { - if (pti->pt_flags&PF_PKT && pti->pt_send) { - error = ureadc((int)pti->pt_send, uio); - if (error) - goto out; - if (pti->pt_send & TIOCPKT_IOCTL) { - cc = min(uio_resid(uio), - sizeof(tp->t_termios)); - uiomove((caddr_t)&tp->t_termios, cc, - uio); - } - pti->pt_send = 0; - goto out; - } - if (pti->pt_flags&PF_UCNTL && pti->pt_ucntl) { - error = ureadc((int)pti->pt_ucntl, uio); - if (error) - goto out; - pti->pt_ucntl = 0; - goto out; - } - if (tp->t_outq.c_cc && (tp->t_state&TS_TTSTOP) == 0) - break; - } - if ((tp->t_state & TS_CONNECTED) == 0) - goto out; /* EOF */ - if (flag & IO_NDELAY) { - error = EWOULDBLOCK; - goto out; - } - error = ttysleep(tp, TSA_PTC_READ(tp), TTIPRI | PCATCH, "ptcin", 0); - if (error) - goto out; - } - if (pti->pt_flags & (PF_PKT|PF_UCNTL)) - error = ureadc(0, uio); - while (uio_resid(uio) > 0 && error == 0) { - cc = q_to_b(&tp->t_outq, (u_char *)buf, min(uio_resid(uio), BUFSIZ)); - if (cc <= 0) - break; - error = uiomove(buf, cc, uio); - } - (*linesw[tp->t_line].l_start)(tp); - -out: - tty_unlock(tp); - - return (error); -} - -/* - * Line discipline callback - * - * Locks: tty_lock() is assumed held on entry and exit. - */ -__private_extern__ void -ptsstop(struct tty *tp, int flush) -{ - struct pt_ioctl *pti; - int flag; - - pti = &pt_ioctl[minor(tp->t_dev)]; - - /* note: FLUSHREAD and FLUSHWRITE already ok */ - if (flush == 0) { - flush = TIOCPKT_STOP; - pti->pt_flags |= PF_STOPPED; - } else - pti->pt_flags &= ~PF_STOPPED; - pti->pt_send |= flush; - /* change of perspective */ - flag = 0; - if (flush & FREAD) - flag |= FWRITE; - if (flush & FWRITE) - flag |= FREAD; - ptcwakeup(tp, flag); -} - -__private_extern__ int -ptcselect(dev_t dev, int rw, void *wql, struct proc *p) -{ - struct tty *tp = pt_tty[minor(dev)]; - struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; - int retval = 0; - - tty_lock(tp); - - if ((tp->t_state & TS_CONNECTED) == 0) { - retval = 1; - goto out; - } - switch (rw) { - - case FREAD: - /* - * Need to block timeouts (ttrstart). - */ - if ((tp->t_state&TS_ISOPEN) && - tp->t_outq.c_cc && (tp->t_state&TS_TTSTOP) == 0) { - retval = 1; - goto out; - } - /* FALLTHROUGH */ - - case 0: /* exceptional */ - if ((tp->t_state&TS_ISOPEN) && - ((pti->pt_flags&PF_PKT && pti->pt_send) || - (pti->pt_flags&PF_UCNTL && pti->pt_ucntl))) { - retval = 1; - goto out; - } - selrecord(p, &pti->pt_selr, wql); - break; - - - case FWRITE: - if (tp->t_state&TS_ISOPEN) { - if (pti->pt_flags & PF_REMOTE) { - if (tp->t_canq.c_cc == 0) { - retval = 1; - goto out; - } - } else { - if (tp->t_rawq.c_cc + tp->t_canq.c_cc < TTYHOG-2) { - retval = 1; - goto out; - } - if (tp->t_canq.c_cc == 0 && (tp->t_lflag&ICANON)) { - retval = 1; - goto out; - } - } - } - selrecord(p, &pti->pt_selw, wql); - break; - - } -out: - tty_unlock(tp); - - return (retval); -} - -__private_extern__ int -ptcwrite(dev_t dev, struct uio *uio, int flag) -{ - struct tty *tp = pt_tty[minor(dev)]; - u_char *cp = NULL; - int cc = 0; - u_char locbuf[BUFSIZ]; - int wcnt = 0; - struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; - int error = 0; - - tty_lock(tp); - -again: - if ((tp->t_state&TS_ISOPEN) == 0) - goto block; - if (pti->pt_flags & PF_REMOTE) { - if (tp->t_canq.c_cc) - goto block; - while ((uio_resid(uio) > 0 || cc > 0) && - tp->t_canq.c_cc < TTYHOG - 1) { - if (cc == 0) { - cc = min(uio_resid(uio), BUFSIZ); - cc = min(cc, TTYHOG - 1 - tp->t_canq.c_cc); - cp = locbuf; - error = uiomove((caddr_t)cp, cc, uio); - if (error) - goto out; - /* check again for safety */ - if ((tp->t_state & TS_ISOPEN) == 0) { - /* adjust as usual */ - uio_setresid(uio, (uio_resid(uio) + cc)); - error = EIO; - goto out; - } - } - if (cc > 0) { - cc = b_to_q((u_char *)cp, cc, &tp->t_canq); - /* - * XXX we don't guarantee that the canq size - * is >= TTYHOG, so the above b_to_q() may - * leave some bytes uncopied. However, space - * is guaranteed for the null terminator if - * we don't fail here since (TTYHOG - 1) is - * not a multiple of CBSIZE. - */ - if (cc > 0) - break; - } - } - /* adjust for data copied in but not written */ - uio_setresid(uio, (uio_resid(uio) + cc)); - (void) putc(0, &tp->t_canq); - ttwakeup(tp); - wakeup(TSA_PTS_READ(tp)); - goto out; - } - while (uio_resid(uio) > 0 || cc > 0) { - if (cc == 0) { - cc = min(uio_resid(uio), BUFSIZ); - cp = locbuf; - error = uiomove((caddr_t)cp, cc, uio); - if (error) - goto out; - /* check again for safety */ - if ((tp->t_state & TS_ISOPEN) == 0) { - /* adjust for data copied in but not written */ - uio_setresid(uio, (uio_resid(uio) + cc)); - error = EIO; - goto out; - } - } - while (cc > 0) { - if ((tp->t_rawq.c_cc + tp->t_canq.c_cc) >= TTYHOG - 2 && - (tp->t_canq.c_cc > 0 || !(tp->t_lflag&ICANON))) { - wakeup(TSA_HUP_OR_INPUT(tp)); - goto block; - } - (*linesw[tp->t_line].l_rint)(*cp++, tp); - wcnt++; - cc--; - } - cc = 0; - } -out: - tty_unlock(tp); - - return (error); - -block: - /* - * Come here to wait for slave to open, for space - * in outq, or space in rawq, or an empty canq. - */ - if ((tp->t_state & TS_CONNECTED) == 0) { - /* adjust for data copied in but not written */ - uio_setresid(uio, (uio_resid(uio) + cc)); - error = EIO; - goto out; - } - if (flag & IO_NDELAY) { - /* adjust for data copied in but not written */ - uio_setresid(uio, (uio_resid(uio) + cc)); - if (wcnt == 0) - error = EWOULDBLOCK; - goto out; - } - error = ttysleep(tp, TSA_PTC_WRITE(tp), TTOPRI | PCATCH, "ptcout", 0); - if (error) { - /* adjust for data copied in but not written */ - uio_setresid(uio, (uio_resid(uio) + cc)); - goto out; - } - goto again; -} - -__private_extern__ int -ptyioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) -{ - struct tty *tp = pt_tty[minor(dev)]; - struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; - u_char *cc = tp->t_cc; - int stop, error = 0; - - tty_lock(tp); - - /* - * IF CONTROLLER STTY THEN MUST FLUSH TO PREVENT A HANG. - * ttywflush(tp) will hang if there are characters in the outq. - */ - if (cmd == TIOCEXT) { - /* - * When the EXTPROC bit is being toggled, we need - * to send an TIOCPKT_IOCTL if the packet driver - * is turned on. - */ - if (*(int *)data) { - if (pti->pt_flags & PF_PKT) { - pti->pt_send |= TIOCPKT_IOCTL; - ptcwakeup(tp, FREAD); - } - tp->t_lflag |= EXTPROC; - } else { - if ((tp->t_lflag & EXTPROC) && - (pti->pt_flags & PF_PKT)) { - pti->pt_send |= TIOCPKT_IOCTL; - ptcwakeup(tp, FREAD); - } - tp->t_lflag &= ~EXTPROC; - } - goto out; - } else - if (cdevsw[major(dev)].d_open == ptcopen) - switch (cmd) { - - case TIOCGPGRP: - /* - * We aviod calling ttioctl on the controller since, - * in that case, tp must be the controlling terminal. - */ - *(int *)data = tp->t_pgrp ? tp->t_pgrp->pg_id : 0; - goto out; - - case TIOCPKT: - if (*(int *)data) { - if (pti->pt_flags & PF_UCNTL) { - error = EINVAL; - goto out; - } - pti->pt_flags |= PF_PKT; - } else - pti->pt_flags &= ~PF_PKT; - goto out; - - case TIOCUCNTL: - if (*(int *)data) { - if (pti->pt_flags & PF_PKT) { - error = EINVAL; - goto out; - } - pti->pt_flags |= PF_UCNTL; - } else - pti->pt_flags &= ~PF_UCNTL; - goto out; - - case TIOCREMOTE: - if (*(int *)data) - pti->pt_flags |= PF_REMOTE; - else - pti->pt_flags &= ~PF_REMOTE; - ttyflush(tp, FREAD|FWRITE); - goto out; - - case TIOCSETP: - case TIOCSETN: - case TIOCSETD: - case TIOCSETA_32: - case TIOCSETAW_32: - case TIOCSETAF_32: - case TIOCSETA_64: - case TIOCSETAW_64: - case TIOCSETAF_64: - ndflush(&tp->t_outq, tp->t_outq.c_cc); - break; - - case TIOCSIG: - if (*(unsigned int *)data >= NSIG || - *(unsigned int *)data == 0) { - error = EINVAL; - goto out; - } - if ((tp->t_lflag&NOFLSH) == 0) - ttyflush(tp, FREAD|FWRITE); - if ((*(unsigned int *)data == SIGINFO) && - ((tp->t_lflag&NOKERNINFO) == 0)) - ttyinfo_locked(tp); - /* - * SAFE: All callers drop the lock on return and - * SAFE: the linesw[] will short circut this call - * SAFE: if the ioctl() is eaten before the lower - * SAFE: level code gets to see it. - */ - tty_unlock(tp); - tty_pgsignal(tp, *(unsigned int *)data, 1); - tty_lock(tp); - goto out; - - case TIOCPTYGRANT: /* grantpt(3) */ - /* - * Change the uid of the slave to that of the calling - * thread, change the gid of the slave to GID_TTY, - * change the mode to 0620 (rw--w----). - */ - { - _devfs_setattr(pti->pt_devhandle, 0620, kauth_getuid(), GID_TTY); - goto out; - } - - case TIOCPTYGNAME: /* ptsname(3) */ - /* - * Report the name of the slave device in *data - * (128 bytes max.). Use the same derivation method - * used for calling devfs_make_node() to create it. - */ - snprintf(data, 128, "/dev/tty%c%x", - START_CHAR + (minor(dev) / HEX_BASE), - minor(dev) % HEX_BASE); - error = 0; - goto out; - - case TIOCPTYUNLK: /* unlockpt(3) */ - /* - * Unlock the slave device so that it can be opened. - */ - error = 0; - goto out; - } - error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p); - if (error == ENOTTY) { - error = ttioctl_locked(tp, cmd, data, flag, p); - if (error == ENOTTY) { - if (pti->pt_flags & PF_UCNTL && (cmd & ~0xff) == UIOCCMD(0)) { - /* Process the UIOCMD ioctl group */ - if (cmd & 0xff) { - pti->pt_ucntl = (u_char)cmd; - ptcwakeup(tp, FREAD); - } - error = 0; - goto out; - } else if (cmd == TIOCSBRK || cmd == TIOCCBRK) { - /* - * POSIX conformance; rdar://3936338 - * - * Clear ENOTTY in the case of setting or - * clearing a break failing because pty's - * don't support break like real serial - * ports. - */ - error = 0; - goto out; - } - } - } - - /* - * If external processing and packet mode send ioctl packet. - */ - if ((tp->t_lflag&EXTPROC) && (pti->pt_flags & PF_PKT)) { - switch(cmd) { - case TIOCSETA_32: - case TIOCSETAW_32: - case TIOCSETAF_32: - case TIOCSETA_64: - case TIOCSETAW_64: - case TIOCSETAF_64: - case TIOCSETP: - case TIOCSETN: - case TIOCSETC: - case TIOCSLTC: - case TIOCLBIS: - case TIOCLBIC: - case TIOCLSET: - pti->pt_send |= TIOCPKT_IOCTL; - ptcwakeup(tp, FREAD); - default: - break; - } - } - stop = (tp->t_iflag & IXON) && CCEQ(cc[VSTOP], CTRL('s')) - && CCEQ(cc[VSTART], CTRL('q')); - if (pti->pt_flags & PF_NOSTOP) { - if (stop) { - pti->pt_send &= ~TIOCPKT_NOSTOP; - pti->pt_send |= TIOCPKT_DOSTOP; - pti->pt_flags &= ~PF_NOSTOP; - ptcwakeup(tp, FREAD); - } - } else { - if (!stop) { - pti->pt_send &= ~TIOCPKT_DOSTOP; - pti->pt_send |= TIOCPKT_NOSTOP; - pti->pt_flags |= PF_NOSTOP; - ptcwakeup(tp, FREAD); - } - } -out: - tty_unlock(tp); - - return (error); -} +#endif // DEVFS