ssize_t
send_packet(struct interface_info *interface,
struct dhcp_packet *raw, size_t len, struct in_addr from,
struct sockaddr_in *to, struct hardware *hto)
{
unsigned char buf[256];
struct iovec iov[2];
int result, bufp = 0;
if (interface->hw_address.htype == HTYPE_IPSEC_TUNNEL) {
socklen_t slen = sizeof(*to);
result = sendto(server_fd, raw, len, 0,
(struct sockaddr *)to, slen);
goto done;
}
/* Assemble the headers... */
assemble_hw_header(interface, buf, &bufp, hto);
assemble_udp_ip_header(interface, buf, &bufp, from.s_addr,
to->sin_addr.s_addr, to->sin_port, (unsigned char *)raw, len);
/* Fire it off */
iov[0].iov_base = (char *)buf;
iov[0].iov_len = bufp;
iov[1].iov_base = (char *)raw;
iov[1].iov_len = len;
result = writev(interface->wfdesc, iov, 2);
done:
if (result == -1)
warning("send_packet: %m");
return (result);
}
ssize_t
send_packet(struct interface_info *interface, struct dhcp_packet *raw,
size_t len, struct in_addr from, struct sockaddr_in *to,
struct hardware *hto)
{
unsigned char buf[256];
struct iovec iov[2];
struct msghdr msg;
int result, bufp = 0;
/* Assemble the headers... */
if (to->sin_addr.s_addr == INADDR_BROADCAST)
assemble_hw_header(interface, buf, &bufp, hto);
assemble_udp_ip_header(buf, &bufp, from.s_addr,
to->sin_addr.s_addr, to->sin_port, (unsigned char *)raw, len);
iov[0].iov_base = (char *)buf;
iov[0].iov_len = bufp;
iov[1].iov_base = (char *)raw;
iov[1].iov_len = len;
/* Fire it off */
if (to->sin_addr.s_addr == INADDR_BROADCAST)
result = writev(interface->wfdesc, iov, 2);
else {
memset(&msg, 0, sizeof(msg));
msg.msg_name = (struct sockaddr *)to;
msg.msg_namelen = sizeof(*to);
msg.msg_iov = iov;
msg.msg_iovlen = 2;
result = sendmsg(interface->ufdesc, &msg, 0);
}
if (result < 0)
warning("send_packet: %m");
return (result);
}
