void ethernet_send(void *buffer, unsigned int count)
{
struct ethernet_header *header = buffer;
struct ethernet_interface *interface = findinterface(header->sha);
if (!interface)
return;
interface->send(buffer, count);
}
/*
* peer_config - configure a new association
*/
struct peer *
peer_config(
struct sockaddr_storage *srcadr,
struct interface *dstadr,
int hmode,
int version,
int minpoll,
int maxpoll,
u_int flags,
int ttl,
keyid_t key,
u_char *keystr
)
{
register struct peer *peer;
u_char cast_flags;
/*
* First search from the beginning for an association with given
* remote address and mode. If an interface is given, search
* from there to find the association which matches that
* destination. If the given interface is "any", track down
* the actual interface, because that's what gets put into the
* peer structure.
*/
peer = findexistingpeer(srcadr, (struct peer *)0, hmode);
if (dstadr != 0) {
while (peer != 0) {
if (peer->dstadr == dstadr)
break;
if (dstadr == ANY_INTERFACE_CHOOSE(srcadr) &&
peer->dstadr == findinterface(srcadr))
break;
peer = findexistingpeer(srcadr, peer, hmode);
}
}
/*
* We do a dirty little jig to figure the cast flags. This is
* probably not the best place to do this, at least until the
* configure code is rebuilt. Note only one flag can be set.
*/
switch (hmode) {
case MODE_BROADCAST:
if(srcadr->ss_family == AF_INET) {
if (IN_CLASSD(ntohl(((struct sockaddr_in*)srcadr)->sin_addr.s_addr)))
cast_flags = MDF_MCAST;
else
cast_flags = MDF_BCAST;
break;
}
else {
if (IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6*)srcadr)->sin6_addr))
cast_flags = MDF_MCAST;
else
cast_flags = MDF_BCAST;
break;
}
case MODE_CLIENT:
if(srcadr->ss_family == AF_INET) {
if (IN_CLASSD(ntohl(((struct sockaddr_in*)srcadr)->sin_addr.s_addr)))
cast_flags = MDF_ACAST;
else
cast_flags = MDF_UCAST;
break;
}
else {
if (IN6_IS_ADDR_MULTICAST(&((struct sockaddr_in6*)srcadr)->sin6_addr))
cast_flags = MDF_ACAST;
else
cast_flags = MDF_UCAST;
break;
}
default:
cast_flags = MDF_UCAST;
}
/*
* If the peer is already configured, some dope has a duplicate
* configureation entry or another dope is wiggling from afar.
*/
if (peer != 0) {
peer->hmode = (u_char)hmode;
peer->version = (u_char) version;
peer->minpoll = (u_char) minpoll;
peer->maxpoll = (u_char) maxpoll;
peer->flags = flags | FLAG_CONFIG |
(peer->flags & FLAG_REFCLOCK);
peer->cast_flags = cast_flags;
peer->ttl = (u_char) ttl;
peer->keyid = key;
peer->precision = sys_precision;
peer_clear(peer, "RMOT");
return (peer);
}
/*
* Here no match has been found, so presumably this is a new
* persistent association. Mobilize the thing and initialize its
* variables. If emulating ntpdate, force iburst.
*/
if (mode_ntpdate)
flags |= FLAG_IBURST;
peer = newpeer(srcadr, dstadr, hmode, version, minpoll, maxpoll,
flags | FLAG_CONFIG, cast_flags, ttl, key);
return (peer);
}
