From patchwork Tue Jun 7 16:13:38 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Whitcroft X-Patchwork-Id: 99284 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from chlorine.canonical.com (chlorine.canonical.com [91.189.94.204]) by ozlabs.org (Postfix) with ESMTP id 5612EB6F8E for ; Wed, 8 Jun 2011 02:13:54 +1000 (EST) Received: from localhost ([127.0.0.1] helo=chlorine.canonical.com) by chlorine.canonical.com with esmtp (Exim 4.71) (envelope-from ) id 1QTyuZ-0008QN-OQ; Tue, 07 Jun 2011 16:13:47 +0000 Received: from adelie.canonical.com ([91.189.90.139]) by chlorine.canonical.com with esmtp (Exim 4.71) (envelope-from ) id 1QTyuW-0008PU-AE for kernel-team@lists.ubuntu.com; Tue, 07 Jun 2011 16:13:44 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by adelie.canonical.com with esmtp (Exim 4.71 #1 (Debian)) id 1QTyuW-0000jn-7d; Tue, 07 Jun 2011 16:13:44 +0000 Received: from 212-139-215-176.dynamic.dsl.as9105.com ([212.139.215.176] helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1QTyuV-0005aY-LL; Tue, 07 Jun 2011 16:13:44 +0000 From: Andy Whitcroft To: kernel-team@lists.ubuntu.com Subject: [hardy CVE 1/1] tty: icount changeover for other main devices Date: Tue, 7 Jun 2011 17:13:38 +0100 Message-Id: <1307463221-25605-2-git-send-email-apw@canonical.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1307463221-25605-1-git-send-email-apw@canonical.com> References: <1307463221-25605-1-git-send-email-apw@canonical.com> X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.13 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: kernel-team-bounces@lists.ubuntu.com Errors-To: kernel-team-bounces@lists.ubuntu.com Again basically cut and paste Convert the main driver set to use the hooks for GICOUNT Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 0587102cf9f427c185bfdeb2cef41e13ee0264b1) Conflicts: drivers/char/amiserial.c drivers/char/cyclades.c drivers/char/ip2/ip2main.c drivers/char/mxser.c drivers/char/nozomi.c drivers/char/pcmcia/synclink_cs.c drivers/char/synclink.c drivers/char/synclink_gt.c drivers/char/synclinkmp.c CVE-2010-4076 CVE-2010-4077 BugLink: http://bugs.launchpad.net/bugs/794034 Signed-off-by: Andy Whitcroft --- arch/ia64/hp/sim/simserial.c | 12 +------ drivers/char/amiserial.c | 56 ++++++++++++++++------------- drivers/char/cyclades.c | 72 +++++++++++++----------------------- drivers/char/ip2/ip2main.c | 72 ++++++++++++++++++++++--------------- drivers/char/mxser.c | 68 +++++++++++++++++++---------------- drivers/char/pcmcia/synclink_cs.c | 56 ++++++++++++++--------------- drivers/char/synclink.c | 73 +++++++++++++++++-------------------- drivers/char/synclink_gt.c | 55 +++++++++++++++------------- drivers/char/synclinkmp.c | 61 ++++++++++++++----------------- drivers/serial/68360serial.c | 51 +++++++++++++------------- net/bluetooth/rfcomm/tty.c | 4 -- 11 files changed, 281 insertions(+), 299 deletions(-) diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index ef252df..a62acc7 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -414,7 +414,7 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file, { if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -460,16 +460,6 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file, case TIOCMIWAIT: printk(KERN_INFO "rs_ioctl: TIOCMIWAIT: called\n"); return 0; - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - printk(KERN_INFO "rs_ioctl: TIOCGICOUNT called\n"); - return 0; - case TIOCSERGWILD: case TIOCSERSWILD: /* "setserial -W" is called in Debian boot */ diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c index 3d468f5..f36f144 100644 --- a/drivers/char/amiserial.c +++ b/drivers/char/amiserial.c @@ -1255,6 +1255,36 @@ static void rs_break(struct tty_struct *tty, int break_state) local_irq_restore(flags); } +/* + * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) + * Return: write counters to the user passed counter struct + * NB: both 1->0 and 0->1 transitions are counted except for + * RI where only 0->1 is counted. + */ +static int rs_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + struct async_struct *info = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + + local_irq_save(flags); + cnow = info->state->icount; + local_irq_restore(flags); + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + + return 0; +} static int rs_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) @@ -1324,31 +1354,6 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file, } /* NOTREACHED */ - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - local_irq_save(flags); - cnow = info->state->icount; - local_irq_restore(flags); - icount.cts = cnow.cts; - icount.dsr = cnow.dsr; - icount.rng = cnow.rng; - icount.dcd = cnow.dcd; - icount.rx = cnow.rx; - icount.tx = cnow.tx; - icount.frame = cnow.frame; - icount.overrun = cnow.overrun; - icount.parity = cnow.parity; - icount.brk = cnow.brk; - icount.buf_overrun = cnow.buf_overrun; - - if (copy_to_user(argp, &icount, sizeof(icount))) - return -EFAULT; - return 0; case TIOCSERGWILD: case TIOCSERSWILD: /* "setserial -W" is called in Debian boot */ @@ -1947,6 +1952,7 @@ static const struct tty_operations serial_ops = { .read_proc = rs_read_proc, .tiocmget = rs_tiocmget, .tiocmset = rs_tiocmset, + .get_icount = rs_get_icount, }; /* diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c index e4f579c..ab3ece6 100644 --- a/drivers/char/cyclades.c +++ b/drivers/char/cyclades.c @@ -3975,52 +3975,6 @@ cy_ioctl(struct tty_struct *tty, struct file *file, })); break; - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - spin_lock_irqsave(&info->card->card_lock, flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->card->card_lock, flags); - p_cuser = argp; - ret_val = put_user(cnow.cts, &p_cuser->cts); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.dsr, &p_cuser->dsr); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.rng, &p_cuser->rng); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.dcd, &p_cuser->dcd); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.rx, &p_cuser->rx); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.tx, &p_cuser->tx); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.frame, &p_cuser->frame); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.overrun, &p_cuser->overrun); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.parity, &p_cuser->parity); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.brk, &p_cuser->brk); - if (ret_val) - return ret_val; - ret_val = put_user(cnow.buf_overrun, &p_cuser->buf_overrun); - if (ret_val) - return ret_val; - ret_val = 0; - break; default: ret_val = -ENOIOCTLCMD; } @@ -4032,6 +3986,31 @@ cy_ioctl(struct tty_struct *tty, struct file *file, return ret_val; } /* cy_ioctl */ +static int cy_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *sic) +{ + struct cyclades_port *info = tty->driver_data; + struct cyclades_icount cnow; /* Used to snapshot */ + unsigned long flags; + + spin_lock_irqsave(&info->card->card_lock, flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->card->card_lock, flags); + + sic->cts = cnow.cts; + sic->dsr = cnow.dsr; + sic->rng = cnow.rng; + sic->dcd = cnow.dcd; + sic->rx = cnow.rx; + sic->tx = cnow.tx; + sic->frame = cnow.frame; + sic->overrun = cnow.overrun; + sic->parity = cnow.parity; + sic->brk = cnow.brk; + sic->buf_overrun = cnow.buf_overrun; + return 0; +} + /* * This routine allows the tty driver to be notified when * device's termios settings have changed. Note that a @@ -5312,6 +5291,7 @@ static const struct tty_operations cy_ops = { .read_proc = cyclades_get_proc_info, .tiocmget = cy_tiocmget, .tiocmset = cy_tiocmset, + .get_icount = cy_get_icount, }; static int __init cy_init(void) diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index e04e66c..80742b4 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -187,6 +187,8 @@ static void ip2_hangup(PTTY); static int ip2_tiocmget(struct tty_struct *tty, struct file *file); static int ip2_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear); +static int ip2_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount); static void set_irq(int, int); static void ip2_interrupt_bh(struct work_struct *work); @@ -476,6 +478,7 @@ static const struct tty_operations ip2_ops = { .read_proc = ip2_read_proc, .tiocmget = ip2_tiocmget, .tiocmset = ip2_tiocmset, + .get_icount = ip2_get_icount, }; /******************************************************************************/ @@ -2087,7 +2090,6 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg ) i2ChanStrPtr pCh = DevTable[tty->index]; i2eBordStrPtr pB; struct async_icount cprev, cnow; /* kernel counter temps */ - struct serial_icounter_struct __user *p_cuser; int rc = 0; unsigned long flags; void __user *argp = (void __user *)arg; @@ -2256,34 +2258,6 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg ) break; /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for RI where - * only 0->1 is counted. The controller is quite capable of counting - * both, but this done to preserve compatibility with the standard - * serial driver. - */ - case TIOCGICOUNT: - ip2trace (CHANN, ITRC_IOCTL, 11, 1, rc ); - - WRITE_LOCK_IRQSAVE(&pB->read_fifo_spinlock, flags); - cnow = pCh->icount; - WRITE_UNLOCK_IRQRESTORE(&pB->read_fifo_spinlock, flags); - p_cuser = argp; - rc = put_user(cnow.cts, &p_cuser->cts); - rc = put_user(cnow.dsr, &p_cuser->dsr); - rc = put_user(cnow.rng, &p_cuser->rng); - rc = put_user(cnow.dcd, &p_cuser->dcd); - rc = put_user(cnow.rx, &p_cuser->rx); - rc = put_user(cnow.tx, &p_cuser->tx); - rc = put_user(cnow.frame, &p_cuser->frame); - rc = put_user(cnow.overrun, &p_cuser->overrun); - rc = put_user(cnow.parity, &p_cuser->parity); - rc = put_user(cnow.brk, &p_cuser->brk); - rc = put_user(cnow.buf_overrun, &p_cuser->buf_overrun); - break; - - /* * The rest are not supported by this driver. By returning -ENOIOCTLCMD they * will be passed to the line discipline for it to handle. */ @@ -2307,6 +2281,46 @@ ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg ) return rc; } +static int ip2_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + i2ChanStrPtr pCh = DevTable[tty->index]; + i2eBordStrPtr pB; + struct async_icount cnow; /* kernel counter temp */ + unsigned long flags; + + if ( pCh == NULL ) + return -ENODEV; + + pB = pCh->pMyBord; + + /* + * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) + * Return: write counters to the user passed counter struct + * NB: both 1->0 and 0->1 transitions are counted except for RI where + * only 0->1 is counted. The controller is quite capable of counting + * both, but this done to preserve compatibility with the standard + * serial driver. + */ + + write_lock_irqsave(&pB->read_fifo_spinlock, flags); + cnow = pCh->icount; + write_unlock_irqrestore(&pB->read_fifo_spinlock, flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + return 0; +} + /******************************************************************************/ /* Function: GetSerialInfo() */ /* Parameters: Pointer to channel structure */ diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index fd0abef..11757ba 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -448,6 +448,9 @@ static int CheckIsMoxaMust(int io) /* above is modified by Victor Yu. 08-15-2002 */ +static int mxser_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount); + static const struct tty_operations mxser_ops = { .open = mxser_open, .close = mxser_close, @@ -468,6 +471,7 @@ static const struct tty_operations mxser_ops = { .wait_until_sent = mxser_wait_until_sent, .tiocmget = mxser_tiocmget, .tiocmset = mxser_tiocmset, + .get_icount = mxser_get_icount, }; /* @@ -1352,37 +1356,6 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int c ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)); })); break; - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - spin_lock_irqsave(&info->slock, flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->slock, flags); - p_cuser = argp; - /* modified by casper 1/11/2000 */ - if (put_user(cnow.frame, &p_cuser->frame)) - return -EFAULT; - if (put_user(cnow.brk, &p_cuser->brk)) - return -EFAULT; - if (put_user(cnow.overrun, &p_cuser->overrun)) - return -EFAULT; - if (put_user(cnow.buf_overrun, &p_cuser->buf_overrun)) - return -EFAULT; - if (put_user(cnow.parity, &p_cuser->parity)) - return -EFAULT; - if (put_user(cnow.rx, &p_cuser->rx)) - return -EFAULT; - if (put_user(cnow.tx, &p_cuser->tx)) - return -EFAULT; - put_user(cnow.cts, &p_cuser->cts); - put_user(cnow.dsr, &p_cuser->dsr); - put_user(cnow.rng, &p_cuser->rng); - put_user(cnow.dcd, &p_cuser->dcd); - return 0; case MOXA_HighSpeedOn: return put_user(info->baud_base != 115200 ? 1 : 0, (int __user *)argp); case MOXA_SDS_RSTICOUNTER: { @@ -1625,6 +1598,39 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) return 0; } + /* + * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) + * Return: write counters to the user passed counter struct + * NB: both 1->0 and 0->1 transitions are counted except for + * RI where only 0->1 is counted. + */ + +static int mxser_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) + +{ + struct mxser_port *info = tty->driver_data; + struct async_icount cnow; + unsigned long flags; + + spin_lock_irqsave(&info->slock, flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->slock, flags); + + icount->frame = cnow.frame; + icount->brk = cnow.brk; + icount->overrun = cnow.overrun; + icount->buf_overrun = cnow.buf_overrun; + icount->parity = cnow.parity; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + return 0; +} + static void mxser_stoprx(struct tty_struct *tty) { struct mxser_struct *info = tty->driver_data; diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index 8caff0c..704e366 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2263,6 +2263,32 @@ static void mgslpc_break(struct tty_struct *tty, int break_state) spin_unlock_irqrestore(&info->lock,flags); } +static int mgslpc_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data; + struct mgsl_icount cnow; /* kernel counter temps */ + unsigned long flags; + + spin_lock_irqsave(&info->lock,flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->lock,flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + + return 0; +} + /* Service an IOCTL request * * Arguments: @@ -2287,7 +2313,7 @@ static int mgslpc_ioctl(struct tty_struct *tty, struct file * file, return -ENODEV; if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -2328,34 +2354,6 @@ static int ioctl_common(MGSLPC_INFO *info, unsigned int cmd, unsigned long arg) return wait_events(info, argp); case TIOCMIWAIT: return modem_input_wait(info,(int)arg); - case TIOCGICOUNT: - spin_lock_irqsave(&info->lock,flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->lock,flags); - p_cuser = argp; - PUT_USER(error,cnow.cts, &p_cuser->cts); - if (error) return error; - PUT_USER(error,cnow.dsr, &p_cuser->dsr); - if (error) return error; - PUT_USER(error,cnow.rng, &p_cuser->rng); - if (error) return error; - PUT_USER(error,cnow.dcd, &p_cuser->dcd); - if (error) return error; - PUT_USER(error,cnow.rx, &p_cuser->rx); - if (error) return error; - PUT_USER(error,cnow.tx, &p_cuser->tx); - if (error) return error; - PUT_USER(error,cnow.frame, &p_cuser->frame); - if (error) return error; - PUT_USER(error,cnow.overrun, &p_cuser->overrun); - if (error) return error; - PUT_USER(error,cnow.parity, &p_cuser->parity); - if (error) return error; - PUT_USER(error,cnow.brk, &p_cuser->brk); - if (error) return error; - PUT_USER(error,cnow.buf_overrun, &p_cuser->buf_overrun); - if (error) return error; - return 0; default: return -ENOIOCTLCMD; } diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index 905d1f5..2f9d0aa 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -2931,6 +2931,38 @@ static void mgsl_break(struct tty_struct *tty, int break_state) } /* end of mgsl_break() */ +/* + * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) + * Return: write counters to the user passed counter struct + * NB: both 1->0 and 0->1 transitions are counted except for + * RI where only 0->1 is counted. + */ +static int msgl_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) + +{ + struct mgsl_struct * info = tty->driver_data; + struct mgsl_icount cnow; /* kernel counter temps */ + unsigned long flags; + + spin_lock_irqsave(&info->irq_spinlock,flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->irq_spinlock,flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + return 0; +} + /* mgsl_ioctl() Service an IOCTL request * * Arguments: @@ -2955,7 +2987,7 @@ static int mgsl_ioctl(struct tty_struct *tty, struct file * file, return -ENODEV; if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -2965,11 +2997,7 @@ static int mgsl_ioctl(struct tty_struct *tty, struct file * file, static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg) { - int error; - struct mgsl_icount cnow; /* kernel counter temps */ void __user *argp = (void __user *)arg; - struct serial_icounter_struct __user *p_cuser; /* user space */ - unsigned long flags; switch (cmd) { case MGSL_IOCGPARAMS: @@ -2998,40 +3026,6 @@ static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigne case TIOCMIWAIT: return modem_input_wait(info,(int)arg); - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - spin_lock_irqsave(&info->irq_spinlock,flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->irq_spinlock,flags); - p_cuser = argp; - PUT_USER(error,cnow.cts, &p_cuser->cts); - if (error) return error; - PUT_USER(error,cnow.dsr, &p_cuser->dsr); - if (error) return error; - PUT_USER(error,cnow.rng, &p_cuser->rng); - if (error) return error; - PUT_USER(error,cnow.dcd, &p_cuser->dcd); - if (error) return error; - PUT_USER(error,cnow.rx, &p_cuser->rx); - if (error) return error; - PUT_USER(error,cnow.tx, &p_cuser->tx); - if (error) return error; - PUT_USER(error,cnow.frame, &p_cuser->frame); - if (error) return error; - PUT_USER(error,cnow.overrun, &p_cuser->overrun); - if (error) return error; - PUT_USER(error,cnow.parity, &p_cuser->parity); - if (error) return error; - PUT_USER(error,cnow.brk, &p_cuser->brk); - if (error) return error; - PUT_USER(error,cnow.buf_overrun, &p_cuser->buf_overrun); - if (error) return error; - return 0; default: return -ENOIOCTLCMD; } @@ -4369,6 +4363,7 @@ static const struct tty_operations mgsl_ops = { .hangup = mgsl_hangup, .tiocmget = tiocmget, .tiocmset = tiocmset, + .get_icount = msgl_get_icount, }; /* diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 64e835f..de1f0a3 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -1095,9 +1095,6 @@ static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { struct slgt_info *info = tty->driver_data; - struct mgsl_icount cnow; /* kernel counter temps */ - struct serial_icounter_struct __user *p_cuser; /* user space */ - unsigned long flags; void __user *argp = (void __user *)arg; if (sanity_check(info, tty->name, "ioctl")) @@ -1105,7 +1102,7 @@ static int ioctl(struct tty_struct *tty, struct file *file, DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -1141,30 +1138,39 @@ static int ioctl(struct tty_struct *tty, struct file *file, return get_gpio(info, argp); case MGSL_IOCWAITGPIO: return wait_gpio(info, argp); - case TIOCGICOUNT: - spin_lock_irqsave(&info->lock,flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->lock,flags); - p_cuser = argp; - if (put_user(cnow.cts, &p_cuser->cts) || - put_user(cnow.dsr, &p_cuser->dsr) || - put_user(cnow.rng, &p_cuser->rng) || - put_user(cnow.dcd, &p_cuser->dcd) || - put_user(cnow.rx, &p_cuser->rx) || - put_user(cnow.tx, &p_cuser->tx) || - put_user(cnow.frame, &p_cuser->frame) || - put_user(cnow.overrun, &p_cuser->overrun) || - put_user(cnow.parity, &p_cuser->parity) || - put_user(cnow.brk, &p_cuser->brk) || - put_user(cnow.buf_overrun, &p_cuser->buf_overrun)) - return -EFAULT; - return 0; default: return -ENOIOCTLCMD; } return 0; } +static int get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) + +{ + struct slgt_info *info = tty->driver_data; + struct mgsl_icount cnow; /* kernel counter temps */ + unsigned long flags; + + spin_lock_irqsave(&info->lock,flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->lock,flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + + return 0; +} + /* * support for 32 bit ioctl calls on 64 bit systems */ @@ -1250,10 +1256,6 @@ static long slgt_compat_ioctl(struct tty_struct *tty, struct file *file, case MGSL_IOCSGPIO: case MGSL_IOCGGPIO: case MGSL_IOCWAITGPIO: - case TIOCGICOUNT: - rc = ioctl(tty, file, cmd, (unsigned long)(compat_ptr(arg))); - break; - case MGSL_IOCSTXIDLE: case MGSL_IOCTXENABLE: case MGSL_IOCRXENABLE: @@ -3563,6 +3565,7 @@ static const struct tty_operations ops = { .hangup = hangup, .tiocmget = tiocmget, .tiocmset = tiocmset, + .get_icount = get_icount, }; static void slgt_cleanup(void) diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c index c63013b..6f85838 100644 --- a/drivers/char/synclinkmp.c +++ b/drivers/char/synclinkmp.c @@ -1308,10 +1308,6 @@ static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { SLMP_INFO *info = (SLMP_INFO *)tty->driver_data; - int error; - struct mgsl_icount cnow; /* kernel counter temps */ - struct serial_icounter_struct __user *p_cuser; /* user space */ - unsigned long flags; void __user *argp = (void __user *)arg; if (debug_level >= DEBUG_LEVEL_INFO) @@ -1322,7 +1318,7 @@ static int ioctl(struct tty_struct *tty, struct file *file, return -ENODEV; if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) && - (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + (cmd != TIOCMIWAIT)) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -1360,40 +1356,38 @@ static int ioctl(struct tty_struct *tty, struct file *file, * NB: both 1->0 and 0->1 transitions are counted except for * RI where only 0->1 is counted. */ - case TIOCGICOUNT: - spin_lock_irqsave(&info->lock,flags); - cnow = info->icount; - spin_unlock_irqrestore(&info->lock,flags); - p_cuser = argp; - PUT_USER(error,cnow.cts, &p_cuser->cts); - if (error) return error; - PUT_USER(error,cnow.dsr, &p_cuser->dsr); - if (error) return error; - PUT_USER(error,cnow.rng, &p_cuser->rng); - if (error) return error; - PUT_USER(error,cnow.dcd, &p_cuser->dcd); - if (error) return error; - PUT_USER(error,cnow.rx, &p_cuser->rx); - if (error) return error; - PUT_USER(error,cnow.tx, &p_cuser->tx); - if (error) return error; - PUT_USER(error,cnow.frame, &p_cuser->frame); - if (error) return error; - PUT_USER(error,cnow.overrun, &p_cuser->overrun); - if (error) return error; - PUT_USER(error,cnow.parity, &p_cuser->parity); - if (error) return error; - PUT_USER(error,cnow.brk, &p_cuser->brk); - if (error) return error; - PUT_USER(error,cnow.buf_overrun, &p_cuser->buf_overrun); - if (error) return error; - return 0; default: return -ENOIOCTLCMD; } return 0; } +static int get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + SLMP_INFO *info = tty->driver_data; + struct mgsl_icount cnow; /* kernel counter temps */ + unsigned long flags; + + spin_lock_irqsave(&info->lock,flags); + cnow = info->icount; + spin_unlock_irqrestore(&info->lock,flags); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + icount->rx = cnow.rx; + icount->tx = cnow.tx; + icount->frame = cnow.frame; + icount->overrun = cnow.overrun; + icount->parity = cnow.parity; + icount->brk = cnow.brk; + icount->buf_overrun = cnow.buf_overrun; + + return 0; +} + /* * /proc fs routines.... */ @@ -3935,6 +3929,7 @@ static const struct tty_operations ops = { .hangup = hangup, .tiocmget = tiocmget, .tiocmset = tiocmset, + .get_icount = get_icount, }; static void synclinkmp_cleanup(void) diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c index 2aa6bfe..1c9d494 100644 --- a/drivers/serial/68360serial.c +++ b/drivers/serial/68360serial.c @@ -1379,6 +1379,30 @@ static void send_break(ser_info_t *info, unsigned int duration) } +/* + * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) + * Return: write counters to the user passed counter struct + * NB: both 1->0 and 0->1 transitions are counted except for + * RI where only 0->1 is counted. + */ +static int rs_360_get_icount(struct tty_struct *tty, + struct serial_icounter_struct *icount) +{ + ser_info_t *info = (ser_info_t *)tty->driver_data; + struct async_icount cnow; + + local_irq_disable(); + cnow = info->state->icount; + local_irq_enable(); + + icount->cts = cnow.cts; + icount->dsr = cnow.dsr; + icount->rng = cnow.rng; + icount->dcd = cnow.dcd; + + return 0; +} + static int rs_360_ioctl(struct tty_struct *tty, struct file * file, unsigned int cmd, unsigned long arg) { @@ -1392,7 +1416,7 @@ static int rs_360_ioctl(struct tty_struct *tty, struct file * file, if (serial_paranoia_check(info, tty->name, "rs_ioctl")) return -ENODEV; - if ((cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) { + if (cmd != TIOCMIWAIT) { if (tty->flags & (1 << TTY_IO_ERROR)) return -EIO; } @@ -1487,31 +1511,6 @@ static int rs_360_ioctl(struct tty_struct *tty, struct file * file, return 0; #endif - /* - * Get counter of input serial line interrupts (DCD,RI,DSR,CTS) - * Return: write counters to the user passed counter struct - * NB: both 1->0 and 0->1 transitions are counted except for - * RI where only 0->1 is counted. - */ - case TIOCGICOUNT: - local_irq_disable(); - cnow = info->state->icount; - local_irq_enable(); - p_cuser = (struct serial_icounter_struct *) arg; -/* error = put_user(cnow.cts, &p_cuser->cts); */ -/* if (error) return error; */ -/* error = put_user(cnow.dsr, &p_cuser->dsr); */ -/* if (error) return error; */ -/* error = put_user(cnow.rng, &p_cuser->rng); */ -/* if (error) return error; */ -/* error = put_user(cnow.dcd, &p_cuser->dcd); */ -/* if (error) return error; */ - - put_user(cnow.cts, &p_cuser->cts); - put_user(cnow.dsr, &p_cuser->dsr); - put_user(cnow.rng, &p_cuser->rng); - put_user(cnow.dcd, &p_cuser->dcd); - return 0; default: return -ENOIOCTLCMD; diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 788c703..802e95c 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -781,10 +781,6 @@ static int rfcomm_tty_ioctl(struct tty_struct *tty, struct file *filp, unsigned BT_DBG("TIOCMIWAIT"); break; - case TIOCGICOUNT: - BT_DBG("TIOCGICOUNT"); - break; - case TIOCGSERIAL: BT_ERR("TIOCGSERIAL is not supported"); return -ENOIOCTLCMD;