86 	struct mbuf *m;  in debugnet_handle_ip()  local
90 	m = *mb;  in debugnet_handle_ip()
91 	if (m->m_pkthdr.len < sizeof(struct ip)) {  in debugnet_handle_ip()
95 	if (m->m_len < sizeof(struct ip)) {  in debugnet_handle_ip()
96 		m = m_pullup(m, sizeof(struct ip));  in debugnet_handle_ip()
97 		*mb = m;  in debugnet_handle_ip()
98 		if (m == NULL) {  in debugnet_handle_ip()
103 	ip = mtod(m, struct ip *);  in debugnet_handle_ip()
117 	if (hlen > m->m_len) {  in debugnet_handle_ip()
118 		m = m_pullup(m, hlen);  in debugnet_handle_ip()
119 		*mb = m;  in debugnet_handle_ip()
120 		if (m == NULL) {  in debugnet_handle_ip()
124 		ip = mtod(m, struct ip *);  in debugnet_handle_ip()
135 	    (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) {  in debugnet_handle_ip()
142 	if ((m->m_pkthdr.csum_flags & CSUM_IP_CHECKED) != 0) {  in debugnet_handle_ip()
143 		if ((m->m_pkthdr.csum_flags & CSUM_IP_VALID) == 0) {  in debugnet_handle_ip()
158 	if (m->m_pkthdr.len < ip->ip_len) {  in debugnet_handle_ip()
160 		    ip->ip_len, m->m_pkthdr.len);  in debugnet_handle_ip()
163 	if (m->m_pkthdr.len > ip->ip_len) {  in debugnet_handle_ip()
165 		if (m->m_len == m->m_pkthdr.len) {  in debugnet_handle_ip()
166 			m->m_len = ip->ip_len;  in debugnet_handle_ip()
167 			m->m_pkthdr.len = ip->ip_len;  in debugnet_handle_ip()
169 			m_adj(m, ip->ip_len - m->m_pkthdr.len);  in debugnet_handle_ip()
198 	if ((m->m_pkthdr.csum_flags & CSUM_PSEUDO_HDR) != 0) {  in debugnet_handle_ip()
199 		if ((m->m_pkthdr.csum_flags & CSUM_DATA_VALID) == 0) {  in debugnet_handle_ip()
211 	MPASS(m->m_pkthdr.len >= sizeof(struct ipovly));  in debugnet_handle_ip()
214 	m_adj(m, sizeof(struct ipovly));  in debugnet_handle_ip()
232 	struct mbuf *m;  in debugnet_send_arp()  local
239 	m = m_gethdr(M_NOWAIT, MT_DATA);  in debugnet_send_arp()
240 	if (m == NULL) {  in debugnet_send_arp()
245 	m->m_len = pktlen;  in debugnet_send_arp()
246 	m->m_pkthdr.len = pktlen;  in debugnet_send_arp()
247 	MH_ALIGN(m, pktlen);  in debugnet_send_arp()
248 	ah = mtod(m, struct arphdr *);  in debugnet_send_arp()
258 	return (debugnet_ether_output(m, ifp, bcast, ETHERTYPE_ARP));  in debugnet_send_arp()
281 	struct mbuf *m;  in debugnet_handle_arp()  local
287 	m = *mb;  in debugnet_handle_arp()
288 	ifp = m->m_pkthdr.rcvif;  in debugnet_handle_arp()
289 	if (m->m_len < sizeof(struct arphdr)) {  in debugnet_handle_arp()
290 		m = m_pullup(m, sizeof(struct arphdr));  in debugnet_handle_arp()
291 		*mb = m;  in debugnet_handle_arp()
292 		if (m == NULL) {  in debugnet_handle_arp()
298 	ah = mtod(m, struct arphdr *);  in debugnet_handle_arp()
310 	if (m->m_len < req_len) {  in debugnet_handle_arp()
311 		m = m_pullup(m, req_len);  in debugnet_handle_arp()
312 		*mb = m;  in debugnet_handle_arp()
313 		if (m == NULL) {  in debugnet_handle_arp()
318 	ah = mtod(m, struct arphdr *);  in debugnet_handle_arp()
377 	m->m_flags &= ~(M_BCAST|M_MCAST);  in debugnet_handle_arp()
378 	m->m_len = arphdr_len(ah);  in debugnet_handle_arp()
379 	m->m_pkthdr.len = m->m_len;  in debugnet_handle_arp()
382 	debugnet_ether_output(m, ifp, dst, ETHERTYPE_ARP);  in debugnet_handle_arp()
445 debugnet_ip_output(struct debugnet_pcb *pcb, struct mbuf *m)  in debugnet_ip_output()  argument
455 	M_PREPEND(m, sizeof(*ip), M_NOWAIT);  in debugnet_ip_output()
456 	if (m == NULL) {  in debugnet_ip_output()
461 	if (m->m_pkthdr.len > ifp->if_mtu) {  in debugnet_ip_output()
463 		    m->m_pkthdr.len, ifp->if_mtu);  in debugnet_ip_output()
464 		m_freem(m);  in debugnet_ip_output()
468 	ip = mtod(m, void *);  in debugnet_ip_output()
478 	udp->uh_sum = in_cksum(m, m->m_pkthdr.len);  in debugnet_ip_output()
485 	ip->ip_len = htons(m->m_pkthdr.len);  in debugnet_ip_output()
490 	ip->ip_sum = in_cksum(m, sizeof(struct ip));  in debugnet_ip_output()
492 	return (debugnet_ether_output(m, ifp, pcb->dp_gw_mac, ETHERTYPE_IP));  in debugnet_ip_output()