contrib/libpcap/pcap-bpf.c

189  * p->md.timeout so we don't call select(2) if the pcap handle is in non-
198 	if (p->md.zerocopy) {
203 		return (p->md.timeout < 0);
213 	if (p->md.zerocopy) {
220 			if (p->md.timeout >= 0) {
225 				p->md.timeout = ~p->md.timeout;
228 			if (p->md.timeout < 0) {
229 				p->md.timeout = ~p->md.timeout;
253 	if (p->md.zbuffer == p->md.zbuf2 || p->md.zbuffer == NULL) {
254 		bzh = (struct bpf_zbuf_header *)p->md.zbuf1;
257 			p->md.bzh = bzh;
258 			p->md.zbuffer = (u_char *)p->md.zbuf1;
259 			p->buffer = p->md.zbuffer + sizeof(*bzh);
263 	} else if (p->md.zbuffer == p->md.zbuf1) {
264 		bzh = (struct bpf_zbuf_header *)p->md.zbuf2;
267 			p->md.bzh = bzh;
268 			p->md.zbuffer = (u_char *)p->md.zbuf2;
269   			p->buffer = p->md.zbuffer + sizeof(*bzh);
311 	tmout = p->md.timeout;
314 	if (p->md.interrupted && p->md.timeout) {
315 		expire = TSTOMILLI(&p->md.firstsel) + p->md.timeout;
319 			p->md.interrupted = 0;
336 	if (p->md.timeout >= 0) {
344 		    p->md.timeout != 0 ? &tv : NULL);
346 			if (!p->md.interrupted && p->md.timeout) {
347 				p->md.interrupted = 1;
348 				p->md.firstsel = cur;
357 	p->md.interrupted = 0;
386 	atomic_store_rel_int(&p->md.bzh->bzh_user_gen,
387 	    p->md.bzh->bzh_kernel_gen);
388 	p->md.bzh = NULL;
830 		if (p->md.zerocopy) {
978 		if (p->md.use_bpf ||
1251 	if (p->md.must_do_on_close != 0) {
1257 		if (p->md.must_do_on_close & MUST_CLEAR_RFMON) {
1274 				strncpy(req.ifm_name, p->md.device,
1289 						    p->md.device,
1312 		p->md.must_do_on_close = 0;
1316 	if (p->md.zerocopy) {
1324 		if (p->md.zbuf1 != MAP_FAILED && p->md.zbuf1 != NULL)
1325 			(void) munmap(p->md.zbuf1, p->md.zbufsize);
1326 		if (p->md.zbuf2 != MAP_FAILED && p->md.zbuf2 != NULL)
1327 			(void) munmap(p->md.zbuf2, p->md.zbufsize);
1332 	if (p->md.device != NULL) {
1333 		free(p->md.device);
1334 		p->md.device = NULL;
1539 	p->md.device = strdup(p->opt.source);
1540 	if (p->md.device == NULL) {
1655 		p->md.zerocopy = 1;
1685 		p->md.zbufsize = roundup(v, getpagesize());
1686 		if (p->md.zbufsize > zbufmax)
1687 			p->md.zbufsize = zbufmax;
1688 		p->md.zbuf1 = mmap(NULL, p->md.zbufsize, PROT_READ | PROT_WRITE,
1690 		p->md.zbuf2 = mmap(NULL, p->md.zbufsize, PROT_READ | PROT_WRITE,
1692 		if (p->md.zbuf1 == MAP_FAILED || p->md.zbuf2 == MAP_FAILED) {
1698 		bz.bz_bufa = p->md.zbuf1;
1699 		bz.bz_bufb = p->md.zbuf2;
1700 		bz.bz_buflen = p->md.zbufsize;
1712 		v = p->md.zbufsize - sizeof(struct bpf_zbuf_header);
2048 	if (p->md.timeout != 0 && !p->md.zerocopy) {
2050 	if (p->md.timeout) {
2074 			bpf_to.tv_sec = p->md.timeout / 1000;
2075 			bpf_to.tv_usec = (p->md.timeout * 1000) % 1000000;
2084 			to.tv_sec = p->md.timeout / 1000;
2085 			to.tv_usec = (p->md.timeout * 1000) % 1000000;
2172 	if (!p->md.zerocopy) {
2424 			p->md.must_do_on_close |= MUST_CLEAR_RFMON;
2613 		p->md.use_bpf = 1;	/* filtering in the kernel */
2653 	p->md.use_bpf = 0;	/* filtering in userland */