| bpf.c (92260) | bpf.c (92725) |
|---|---|
| 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 8.4 (Berkeley) 1/9/95 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 8.4 (Berkeley) 1/9/95 39 * |
| 40 * $FreeBSD: head/sys/net/bpf.c 92260 2002-03-14 04:47:08Z alfred $ | 40 * $FreeBSD: head/sys/net/bpf.c 92725 2002-03-19 21:54:18Z alfred $ |
| 41 */ 42 43#include "opt_bpf.h" 44#include "opt_netgraph.h" 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/conf.h> --- 38 unchanged lines hidden (view full) --- 87 &bpf_maxbufsize, 0, ""); 88 89/* 90 * bpf_iflist is the list of interfaces; each corresponds to an ifnet 91 */ 92static struct bpf_if *bpf_iflist; 93static struct mtx bpf_mtx; /* bpf global lock */ 94 | 41 */ 42 43#include "opt_bpf.h" 44#include "opt_netgraph.h" 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/conf.h> --- 38 unchanged lines hidden (view full) --- 87 &bpf_maxbufsize, 0, ""); 88 89/* 90 * bpf_iflist is the list of interfaces; each corresponds to an ifnet 91 */ 92static struct bpf_if *bpf_iflist; 93static struct mtx bpf_mtx; /* bpf global lock */ 94 |
| 95static int bpf_allocbufs __P((struct bpf_d *)); 96static void bpf_attachd __P((struct bpf_d *d, struct bpf_if *bp)); 97static void bpf_detachd __P((struct bpf_d *d)); 98static void bpf_freed __P((struct bpf_d *)); 99static void bpf_mcopy __P((const void *, void *, size_t)); 100static int bpf_movein __P((struct uio *, int, 101 struct mbuf **, struct sockaddr *, int *)); 102static int bpf_setif __P((struct bpf_d *, struct ifreq *)); 103static void bpf_timed_out __P((void *)); | 95static int bpf_allocbufs(struct bpf_d *); 96static void bpf_attachd(struct bpf_d *d, struct bpf_if *bp); 97static void bpf_detachd(struct bpf_d *d); 98static void bpf_freed(struct bpf_d *); 99static void bpf_mcopy(const void *, void *, size_t); 100static int bpf_movein(struct uio *, int, 101 struct mbuf **, struct sockaddr *, int *); 102static int bpf_setif(struct bpf_d *, struct ifreq *); 103static void bpf_timed_out(void *); |
| 104static __inline void | 104static __inline void |
| 105 bpf_wakeup __P((struct bpf_d *)); 106static void catchpacket __P((struct bpf_d *, u_char *, u_int, 107 u_int, void (*)(const void *, void *, size_t))); 108static void reset_d __P((struct bpf_d *)); 109static int bpf_setf __P((struct bpf_d *, struct bpf_program *)); | 105 bpf_wakeup(struct bpf_d *); 106static void catchpacket(struct bpf_d *, u_char *, u_int, 107 u_int, void (*)(const void *, void *, size_t)); 108static void reset_d(struct bpf_d *); 109static int bpf_setf(struct bpf_d *, struct bpf_program *); |
| 110 111static d_open_t bpfopen; 112static d_close_t bpfclose; 113static d_read_t bpfread; 114static d_write_t bpfwrite; 115static d_ioctl_t bpfioctl; 116static d_poll_t bpfpoll; 117 --- 1017 unchanged lines hidden (view full) --- 1135 * bpf_mcopy is passed in to copy mbuf chains. In the latter case, 1136 * pkt is really an mbuf. 1137 */ 1138static void 1139catchpacket(d, pkt, pktlen, snaplen, cpfn) 1140 register struct bpf_d *d; 1141 register u_char *pkt; 1142 register u_int pktlen, snaplen; | 110 111static d_open_t bpfopen; 112static d_close_t bpfclose; 113static d_read_t bpfread; 114static d_write_t bpfwrite; 115static d_ioctl_t bpfioctl; 116static d_poll_t bpfpoll; 117 --- 1017 unchanged lines hidden (view full) --- 1135 * bpf_mcopy is passed in to copy mbuf chains. In the latter case, 1136 * pkt is really an mbuf. 1137 */ 1138static void 1139catchpacket(d, pkt, pktlen, snaplen, cpfn) 1140 register struct bpf_d *d; 1141 register u_char *pkt; 1142 register u_int pktlen, snaplen; |
| 1143 register void (*cpfn) __P((const void *, void *, size_t)); | 1143 register void (*cpfn)(const void *, void *, size_t); |
| 1144{ 1145 register struct bpf_hdr *hp; 1146 register int totlen, curlen; 1147 register int hdrlen = d->bd_bif->bif_hdrlen; 1148 /* 1149 * Figure out how many bytes to move. If the packet is 1150 * greater or equal to the snapshot length, transfer that 1151 * much. Otherwise, transfer the whole packet (unless --- 177 unchanged lines hidden (view full) --- 1329 } 1330 1331 mtx_destroy(&bp->bif_mtx); 1332 free(bp, M_BPF); 1333 1334 mtx_unlock(&bpf_mtx); 1335} 1336 | 1144{ 1145 register struct bpf_hdr *hp; 1146 register int totlen, curlen; 1147 register int hdrlen = d->bd_bif->bif_hdrlen; 1148 /* 1149 * Figure out how many bytes to move. If the packet is 1150 * greater or equal to the snapshot length, transfer that 1151 * much. Otherwise, transfer the whole packet (unless --- 177 unchanged lines hidden (view full) --- 1329 } 1330 1331 mtx_destroy(&bp->bif_mtx); 1332 free(bp, M_BPF); 1333 1334 mtx_unlock(&bpf_mtx); 1335} 1336 |
| 1337static void bpf_drvinit __P((void *unused)); | 1337static void bpf_drvinit(void *unused); |
| 1338 | 1338 |
| 1339static void bpf_clone __P((void *arg, char *name, int namelen, dev_t *dev)); | 1339static void bpf_clone(void *arg, char *name, int namelen, dev_t *dev); |
| 1340 1341static void 1342bpf_clone(arg, name, namelen, dev) 1343 void *arg; 1344 char *name; 1345 int namelen; 1346 dev_t *dev; 1347{ --- 79 unchanged lines hidden --- | 1340 1341static void 1342bpf_clone(arg, name, namelen, dev) 1343 void *arg; 1344 char *name; 1345 int namelen; 1346 dev_t *dev; 1347{ --- 79 unchanged lines hidden --- |