| bpf.c (40049) | bpf.c (41086) |
|---|---|
| 1/* 2 * Copyright (c) 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from the Stanford/CMU enet packet filter, 6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed 7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence 8 * Berkeley Laboratory. --- 23 unchanged lines hidden (view full) --- 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)bpf.c 8.2 (Berkeley) 3/28/94 39 * | 1/* 2 * Copyright (c) 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from the Stanford/CMU enet packet filter, 6 * (net/enet.c) distributed as part of 4.3BSD, and code contributed 7 * to Berkeley by Steven McCanne and Van Jacobson both of Lawrence 8 * Berkeley Laboratory. --- 23 unchanged lines hidden (view full) --- 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)bpf.c 8.2 (Berkeley) 3/28/94 39 * |
| 40 * $Id: bpf.c,v 1.43 1998/10/04 23:04:48 alex Exp $ | 40 * $Id: bpf.c,v 1.44 1998/10/08 00:32:08 alex Exp $ |
| 41 */ 42 43#include "bpfilter.h" 44 45#if NBPFILTER > 0 46 47#ifndef __GNUC__ 48#define inline --- 7 unchanged lines hidden (view full) --- 56#include <sys/malloc.h> 57#include <sys/mbuf.h> 58#include <sys/time.h> 59#include <sys/proc.h> 60#include <sys/signalvar.h> 61#include <sys/filio.h> 62#include <sys/sockio.h> 63#include <sys/ttycom.h> | 41 */ 42 43#include "bpfilter.h" 44 45#if NBPFILTER > 0 46 47#ifndef __GNUC__ 48#define inline --- 7 unchanged lines hidden (view full) --- 56#include <sys/malloc.h> 57#include <sys/mbuf.h> 58#include <sys/time.h> 59#include <sys/proc.h> 60#include <sys/signalvar.h> 61#include <sys/filio.h> 62#include <sys/sockio.h> 63#include <sys/ttycom.h> |
| 64#include <sys/filedesc.h> |
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| 64 65#if defined(sparc) && BSD < 199103 66#include <sys/stream.h> 67#endif 68#include <sys/poll.h> 69 70#include <sys/socket.h> 71#include <sys/vnode.h> --- 302 unchanged lines hidden (view full) --- 374 dev_t dev; 375 int flags; 376 int fmt; 377 struct proc *p; 378{ 379 register struct bpf_d *d = &bpf_dtab[minor(dev)]; 380 register int s; 381 | 65 66#if defined(sparc) && BSD < 199103 67#include <sys/stream.h> 68#endif 69#include <sys/poll.h> 70 71#include <sys/socket.h> 72#include <sys/vnode.h> --- 302 unchanged lines hidden (view full) --- 375 dev_t dev; 376 int flags; 377 int fmt; 378 struct proc *p; 379{ 380 register struct bpf_d *d = &bpf_dtab[minor(dev)]; 381 register int s; 382 |
| 383 funsetown(d->bd_sigio); |
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| 382 s = splimp(); 383 if (d->bd_bif) 384 bpf_detachd(d); 385 splx(s); 386 bpf_freed(d); 387 388 return (0); 389} --- 142 unchanged lines hidden (view full) --- 532 */ 533static inline void 534bpf_wakeup(d) 535 register struct bpf_d *d; 536{ 537 struct proc *p; 538 539 wakeup((caddr_t)d); | 384 s = splimp(); 385 if (d->bd_bif) 386 bpf_detachd(d); 387 splx(s); 388 bpf_freed(d); 389 390 return (0); 391} --- 142 unchanged lines hidden (view full) --- 534 */ 535static inline void 536bpf_wakeup(d) 537 register struct bpf_d *d; 538{ 539 struct proc *p; 540 541 wakeup((caddr_t)d); |
| 540 if (d->bd_async && d->bd_sig) 541 if (d->bd_pgid > 0) 542 gsignal (d->bd_pgid, d->bd_sig); 543 else if (p = pfind (-d->bd_pgid)) 544 psignal (p, d->bd_sig); | 542 if (d->bd_async && d->bd_sig && d->bd_sigio) 543 pgsigio(d->bd_sigio, d->bd_sig, 0); |
| 545 546#if BSD >= 199103 547 selwakeup(&d->bd_sel); 548 /* XXX */ 549 d->bd_sel.si_pid = 0; 550#else 551 if (d->bd_selproc) { 552 selwakeup(d->bd_selproc, (int)d->bd_selcoll); --- 276 unchanged lines hidden (view full) --- 829 830 case FIONBIO: /* Non-blocking I/O */ 831 break; 832 833 case FIOASYNC: /* Send signal on receive packets */ 834 d->bd_async = *(int *)addr; 835 break; 836 | 544 545#if BSD >= 199103 546 selwakeup(&d->bd_sel); 547 /* XXX */ 548 d->bd_sel.si_pid = 0; 549#else 550 if (d->bd_selproc) { 551 selwakeup(d->bd_selproc, (int)d->bd_selcoll); --- 276 unchanged lines hidden (view full) --- 828 829 case FIONBIO: /* Non-blocking I/O */ 830 break; 831 832 case FIOASYNC: /* Send signal on receive packets */ 833 d->bd_async = *(int *)addr; 834 break; 835 |
| 837/* N.B. ioctl (FIOSETOWN) and fcntl (F_SETOWN) both end up doing the 838 equivalent of a TIOCSPGRP and hence end up here. *However* TIOCSPGRP's arg 839 is a process group if it's positive and a process id if it's negative. This 840 is exactly the opposite of what the other two functions want! Therefore 841 there is code in ioctl and fcntl to negate the arg before calling here. */ | 836 case FIOSETOWN: 837 error = fsetown(*(int *)addr, &d->bd_sigio); 838 break; |
| 842 | 839 |
| 843 case TIOCSPGRP: /* Process or group to send signals to */ 844 d->bd_pgid = *(int *)addr; | 840 case FIOGETOWN: 841 *(int *)addr = fgetown(d->bd_sigio); |
| 845 break; 846 | 842 break; 843 |
| 844 /* This is deprecated, FIOSETOWN should be used instead. */ 845 case TIOCSPGRP: 846 error = fsetown(-(*(int *)addr), &d->bd_sigio); 847 break; 848 849 /* This is deprecated, FIOGETOWN should be used instead. */ |
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| 847 case TIOCGPGRP: | 850 case TIOCGPGRP: |
| 848 *(int *)addr = d->bd_pgid; | 851 *(int *)addr = -fgetown(d->bd_sigio); |
| 849 break; 850 851 case BIOCSRSIG: /* Set receive signal */ 852 { 853 u_int sig; 854 855 sig = *(u_int *)addr; 856 --- 455 unchanged lines hidden --- | 852 break; 853 854 case BIOCSRSIG: /* Set receive signal */ 855 { 856 u_int sig; 857 858 sig = *(u_int *)addr; 859 --- 455 unchanged lines hidden --- |