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added pbuf alloc block

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This commit is contained in:
Joseph Henry 2015-09-11 15:26:39 -04:00
parent 933b47389d
commit bc666d0ab7
1 changed files with 24 additions and 3 deletions
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27
netcon/NetconEthernetTap.cpp
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@ -116,7 +116,7 @@ bool NetconEthernetTap::addIp(const InetAddress &ip)
if (ip.isV4()) {
Mutex::Lock _l2(_arp_m);
_arp.setLocal((uint32_t)(reinterpret_cast<const struct sockaddr_in *>(ip)->sin_addr.s_addr),_mac);
_arp.addLocal((uint32_t)(reinterpret_cast<const struct sockaddr_in *>(&ip)->sin_addr.s_addr),_mac);
}
// TODO: alloc IP in LWIP
@ -136,7 +136,7 @@ bool NetconEthernetTap::removeIp(const InetAddress &ip)
if (ip.isV4()) {
Mutex::Lock _l2(_arp_m);
_arp.remove((uint32_t)(reinterpret_cast<const struct sockaddr_in *>(ip)->sin_addr.s_addr));
_arp.remove((uint32_t)(reinterpret_cast<const struct sockaddr_in *>(&ip)->sin_addr.s_addr));
}
// TODO: dealloc IP from LWIP
@ -165,7 +165,28 @@ void NetconEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType
if (arpReplyLen > 0)
_handler(_arg,_nwid,_mac,from,ZT_ETHERTYPE_ARP,0,arpReplyBuf,arpReplyLen);
} else if (etherType == ZT_ETHERTYPE_IPV4) {
// TODO: pass IPv4 packets into LWIP
// Pass IPV4 packets to LWIP
struct pbuf *p, *q;
u16_t len;
char *bufptr;
// allocate a pbuf chain of pbufs from the pool
p = lwipstack->pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
if(p != NULL) {
// We iterate over the pbuf chain until we have read the entire packet into the pbuf.
bufptr = (char*)data;
for(q = p; q != NULL; q = q->next) {
// read data into(q->payload, q->len);
memcpy(q->payload, bufptr, q->len);
bufptr += q->len;
}
// acknowledge that packet has been read();
} else {
TRACE("packet dropped");
}
}
}