void ClientConnection::send_action_data()
{
socket().send((void*)m_send_buffer.ptr_data(),m_send_buffer.size_data(),[this](error_ref e) {
if (check_error(e)) {
// std::cout << "<C><sent " << m_send_buffer.size_data() << " bytes of action data>" << std::endl;
handle_outgoing();
}
});
}
void ClientConnection::handle_handshake()
{
auto& alias = m_session.m_user_info.user_alias;
m_send_header = MessageHeader();
m_send_header.flag = MessageHeader::Flag::handshake;
m_send_header.len1 = alias.length() + 1;
socket().send(buffer(m_send_header),[this](error_ref e) {
if (check_error(e)) {
auto& alias = m_session.m_user_info.user_alias;
socket().send((void*)alias.data(),alias.length()+1,[this](error_ref e) {
if (check_error(e)) {
handle_outgoing();
handle_incomming();
}
});
}
});
}
void snd_recv_pkt(struct sbuff *b, int ifi, unsigned int in, void *pkt)
{
int tlen, drop = 0;
int changed = 0;
int dad = 0;
struct snd_pkt_info *pi = NULL;
enum snd_pkt_decision r;
void *start;
struct ip6_hdr *iph;
start = sbuff_data(b);
if (!snd_iface_ok(ifi)) {
goto done; /* Luk: We need to keep packets flowing on non-SEND interfaces */
//return;
}
DBG(&dbg, "%s", in ? "<<<<<<<<<<<<<<<Incoming<<<<<<<<<<<<<<<" :
">>>>>>>>>>>>>>>Outgoing>>>>>>>>>>>>>>>");
if ((pi = calloc(1, sizeof (*pi))) == NULL) {
APPLOG_NOMEM();
goto drop; /* For security reason we drop packet */
}
pi->b = b;
pi->os_pkt = pkt; /* Needed in other threads */
pi->ifi = ifi;
/* Save packet start and len */
pi->start = sbuff_data(b);
tlen = b->len;
if ((iph = pi->iph = sbuff_pull(b, sizeof (*(pi->iph)))) == NULL) {
DBG(&dbg_snd, "packet too small for ipv6 header");
/* This could be different protocol, so let something else handle it */
goto done;
}
pi->icmp = sbuff_data(b);
if (b->len < sizeof (*(pi->icmp))) {
DBG(&dbg_snd, "packet too small for icmpv6 header");
/* This could be different protocol, so let something else handle it */
goto done;
}
DBG(&dbg_snd, "%s %s (%d) (if %d)", in ? "Incoming" : "Outgoing",
pi->icmp->icmp6_type == ND_ROUTER_SOLICIT ? "Router Solicit" :
pi->icmp->icmp6_type == ND_ROUTER_ADVERT ? "Router Advert" :
pi->icmp->icmp6_type == ND_NEIGHBOR_SOLICIT ? "Neighbor Solicit" :
pi->icmp->icmp6_type == ND_NEIGHBOR_ADVERT ? "Neighbor Advert" :
pi->icmp->icmp6_type == ND_REDIRECT ? "Redirect" :
"<unknown>", pi->icmp->icmp6_type, ifi);
DBG(&dbg_snd, "src: %s",
inet_ntop(AF_INET6, &iph->ip6_src, abuf, sizeof (abuf)));
DBG(&dbg_snd, "dst: %s",
inet_ntop(AF_INET6, &iph->ip6_dst, abuf, sizeof (abuf)));
/* Do we need to secure this type? */
switch (is_pkt_valid_nd(pi, &dad)) {
case SND_PKT_CHECK:
break;
case SND_NO_PKT_CHECK:
goto done;
default:
case SND_INVALID_ND:
goto drop;
}
if (in) {
if (snd_is_lcl_cga(pi->cga, ifi)) {
DBG(&dbg, "is local; don't need to check");
goto done;
}
if (snd_parse_opts(&pi->ndopts, sbuff_data(b), b->len) < 0) {
goto drop;
}
b->len = tlen;
r = handle_incoming(pi);
} else {
/* skip all options */
sbuff_advance(b, b->len);
b->len = tlen;
if (!snd_is_lcl_cga(pi->cga, ifi)) {
DBG(&dbg_snd, "outgoing: not CGA, dropping");
if (dad && IN6_IS_ADDR_LINKLOCAL(pi->cga)) {
snd_replace_this_non_cga_linklocal(pi->cga, pi->ifi);
}
goto drop;
}
r = handle_outgoing(pi);
}
switch (r) {
case SND_STOLEN:
return;
case SND_ACCEPT_CHANGED:
changed = 1;
/* fallthru */
case SND_ACCEPT_NOTCHANGED:
goto done;
case SND_DROP:
break;
}
drop:
drop = 1;
done:
b->data = start;
os_specific_deliver_pkt(pkt, b, drop, changed);
if (pi) free(pi);
}
void ClientConnection::notify_send_data_available()
{
if (!m_send_active) handle_outgoing();
}
