/* -----------------------------------------------------------------------------
called from dlil when a packet from the interface is to be dispatched to
the specific network protocol attached by dl_tag.
the network protocol has been determined earlier by the demux function.
the packet is in the mbuf chain m without
the frame header, which is provided separately. (not used)
----------------------------------------------------------------------------- */
errno_t ppp_ipv6_input(ifnet_t ifp, protocol_family_t protocol,
mbuf_t packet, char* header)
{
LOGMBUF("ppp_ipv6_input", packet);
if (proto_input(PF_INET6, packet))
mbuf_freem(packet);
return 0;
}
/*
* Process a received Ethernet packet;
* the packet is in the mbuf chain m without
* the ether header, which is provided separately.
*/
static errno_t
ether_inet6_input(ifnet_t ifp, protocol_family_t protocol,
mbuf_t packet, char *header)
{
#pragma unused(ifp, protocol)
struct ether_header *eh = (struct ether_header *)(void *)header;
u_int16_t ether_type;
bcopy(&eh->ether_type, ðer_type, sizeof (ether_type));
if (ether_type == htons(ETHERTYPE_IPV6)) {
struct ifnet *mifp;
/*
* Trust the ifp in the mbuf, rather than ifproto's
* since the packet could have been injected via
* a dlil_input_packet_list() using an ifp that is
* different than the one where the packet really
* came from.
*/
mifp = mbuf_pkthdr_rcvif(packet);
/* Update L2 reachability record, if present (and not bcast) */
if (bcmp(eh->ether_shost, etherbroadcastaddr,
ETHER_ADDR_LEN) != 0) {
nd6_llreach_set_reachable(mifp, eh->ether_shost,
ETHER_ADDR_LEN);
}
/* Save the Ethernet source address for all-nodes multicasts */
if (!bcmp(eh->ether_dhost, etherip6allnodes, ETHER_ADDR_LEN)) {
struct ip6aux *ip6a;
ip6a = ip6_addaux(packet);
if (ip6a) {
ip6a->ip6a_flags |= IP6A_HASEEN;
bcopy(eh->ether_shost, ip6a->ip6a_ehsrc,
ETHER_ADDR_LEN);
}
}
if (proto_input(protocol, packet) != 0)
m_freem(packet);
} else {
m_freem(packet);
}
return (EJUSTRETURN);
}
static errno_t
utun_proto_input(
__unused ifnet_t interface,
protocol_family_t protocol,
mbuf_t m,
__unused char *frame_header)
{
// remove protocol family first
mbuf_adj(m, sizeof(u_int32_t));
if (proto_input(protocol, m) != 0)
m_freem(m);
return 0;
}
static errno_t
utun_proto_input(
ifnet_t interface,
protocol_family_t protocol,
mbuf_t m,
__unused char *frame_header)
{
// remove protocol family first
struct utun_pcb *pcb = ifnet_softc(interface);
mbuf_adj(m, UTUN_HEADER_SIZE(pcb));
if (proto_input(protocol, m) != 0) {
m_freem(m);
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////
//
// inet_firewire_input
//
// IN: struct mbuf *m, char *frame_header, ifnet_t ifp,
// IN: u_long dl_tag, int sync_ok
//
// Invoked by :
// It will be called from the context of dlil_input_thread queue from
// dlil_input_packet
//
// Process a received firewire ARP/IP packet, the packet is in the mbuf
// chain m
//
////////////////////////////////////////////////////////////////////////////////
static errno_t
inet_firewire_input(
__unused ifnet_t ifp,
__unused protocol_family_t protocol_family,
mbuf_t m,
char *frame_header)
{
struct firewire_header *eh = (struct firewire_header *)frame_header;
u_short fw_type;
ifnet_touch_lastchange(ifp);
fw_type = ntohs(eh->fw_type);
switch (fw_type)
{
case FWTYPE_IP:
{
mbuf_pullup(&m, sizeof(struct ip));
if (m == NULL)
return EJUSTRETURN;
errno_t ret = proto_input(PF_INET, m);
if( ret )
mbuf_freem(m);
return ret;
}
case FWTYPE_ARP:
firewire_arpintr(m);
break;
default:
return ENOENT;
}
return 0;
}
static errno_t
ipsec_proto_input(ifnet_t interface,
protocol_family_t protocol,
mbuf_t m,
__unused char *frame_header)
{
struct ip *ip;
uint32_t af = 0;
ip = mtod(m, struct ip *);
if (ip->ip_v == 4)
af = AF_INET;
else if (ip->ip_v == 6)
af = AF_INET6;
mbuf_pkthdr_setrcvif(m, interface);
bpf_tap_in(interface, DLT_NULL, m, &af, sizeof(af));
if (proto_input(protocol, m) != 0)
m_freem(m);
return 0;
}
static errno_t
tun_inet6_input(ifnet_t ifp, protocol_family_t protocol, mbuf_t m, char *header)
{
/* input the packet */
return proto_input(PF_INET6, m);
}
