sys/kern/uipc_mbuf.c

322 			bzero(&m->m_pkthdr, sizeof(struct pkthdr));
371 		if ((m->m_flags & M_PKTHDR) && m->m_pkthdr.header) {
372 			if ((caddr_t)m->m_pkthdr.header < a ||
373 			    (caddr_t)m->m_pkthdr.header > b)
374 				M_SANITY_ACTION("m_pkthdr.header outside mbuf data range");
392 		    !SLIST_EMPTY(&m->m_pkthdr.tags)) {
403 				bzero(&m->m_pkthdr, sizeof(m->m_pkthdr));
411 	if (pktlen && pktlen != m->m_pkthdr.len) {
413 			m->m_pkthdr.len = 0;
415 			M_SANITY_ACTION("m_pkthdr.len != mbuf chain length");
435 	KASSERT(SLIST_EMPTY(&to->m_pkthdr.tags),
448 	to->m_pkthdr = from->m_pkthdr;		/* especially tags */
449 	SLIST_INIT(&from->m_pkthdr.tags);	/* purge tags from src */
472 	KASSERT(SLIST_EMPTY(&to->m_pkthdr.tags), ("m_dup_pkthdr: to has tags"));
482 	to->m_pkthdr = from->m_pkthdr;
483 	SLIST_INIT(&to->m_pkthdr.tags);
566 				n->m_pkthdr.len -= off0;
568 				n->m_pkthdr.len = len;
663 		mm->m_pkthdr.len += len;
670 		mm->m_pkthdr.len += len;
682 		mm->m_pkthdr.header = NULL;
693 		mm->m_pkthdr.header = NULL;
734 			(prep ? mm : m)->m_pkthdr.len += i;
846 	remain = m->m_pkthdr.len;
849 	while (remain > 0 || top == NULL) {	/* allow m->m_pkthdr.len == 0 */
893 		    	("%s: bogus m_pkthdr.len", __func__));
906  * Any m_pkthdr is not updated.
953 			mp->m_pkthdr.len -= (req_len - len);
973 				mp->m_pkthdr.len -= len;
986 			m->m_pkthdr.len = count;
1138 		n->m_pkthdr.rcvif = m0->m_pkthdr.rcvif;
1139 		n->m_pkthdr.len = m0->m_pkthdr.len - len0;
1140 		m0->m_pkthdr.len = len0;
1212 			m->m_pkthdr.rcvif = ifp;
1213 			m->m_pkthdr.len = totlen;
1295 out:	if (((m = m0)->m_flags & M_PKTHDR) && (m->m_pkthdr.len < totlen))
1296 		m->m_pkthdr.len = totlen;
1341 		m0->m_pkthdr.len += len - remainder;
1419 		len = m->m_pkthdr.len;
1448 	m0->m_pkthdr.len = len;
1500 	if (m0->m_pkthdr.len > MHLEN)
1513 	while (progress < m0->m_pkthdr.len) {
1514 		length = m0->m_pkthdr.len - progress;
1542 	m_defragbytes += m0->m_pkthdr.len;
1684 	while (progress < m0->m_pkthdr.len) {
1691 		if (fraglen > m0->m_pkthdr.len - progress)
1692 			fraglen = m0->m_pkthdr.len - progress;
1771 			m->m_pkthdr.len += length;