Move some data structures and definitions to a header file

[project/relayd.git] / relayd.h

diff --git a/relayd.h b/relayd.h
new file mode 100644 (file)
index 0000000..0fb38e7
--- /dev/null
+++ b/relayd.h
@@ -0,0 +1,93 @@
+/*
+ *   Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License v2 as published by
+ *   the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#ifndef __RELAYD_H
+#define __RELAYD_H
+
+#define DEBUG
+#ifdef DEBUG
+#define DPRINTF(level, ...) if (debug >= level) fprintf(stderr, __VA_ARGS__);
+#else
+#define DPRINTF(...) do {} while(0)
+#endif
+
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+
+#define __uc(c) ((unsigned char *)(c))
+
+#define MAC_FMT        "%02x:%02x:%02x:%02x:%02x:%02x"
+#define MAC_BUF(_c) __uc(_c)[0], __uc(_c)[1], __uc(_c)[2], __uc(_c)[3], __uc(_c)[4], __uc(_c)[5]
+
+#define IP_FMT "%d.%d.%d.%d"
+#define IP_BUF(_c) __uc(_c)[0], __uc(_c)[1], __uc(_c)[2], __uc(_c)[3]
+
+#define DUMMY_IP ((uint8_t *) "\x01\x01\x01\x01")
+
+#define DHCP_FLAG_BROADCAST    (1 << 15)
+
+struct relayd_interface {
+       struct list_head list;
+       struct uloop_fd fd;
+       struct uloop_fd bcast_fd;
+       struct sockaddr_ll sll;
+       struct sockaddr_ll bcast_sll;
+       char ifname[IFNAMSIZ];
+       struct list_head hosts;
+       uint8_t src_ip[4];
+       bool managed;
+};
+
+struct relayd_host {
+       struct list_head list;
+       struct relayd_interface *rif;
+       uint8_t lladdr[ETH_ALEN];
+       uint8_t ipaddr[4];
+       struct uloop_timeout timeout;
+       int cleanup_pending;
+};
+
+struct arp_packet {
+       struct ether_header eth;
+       struct ether_arp arp;
+} __packed;
+
+struct ip_packet {
+       struct ether_header eth;
+       struct iphdr iph;
+} __packed;
+
+struct dhcp_header {
+       uint8_t op, htype, hlen, hops;
+       uint32_t xit;
+       uint16_t secs, flags;
+       struct in_addr ciaddr, yiaddr, siaddr, giaddr;
+       unsigned char chaddr[16];
+       unsigned char sname[64];
+       unsigned char file[128];
+} __packed;
+
+struct rtnl_req {
+       struct nlmsghdr nl;
+       struct rtmsg rt;
+} __packed;
+
+struct list_head interfaces;
+extern int debug;
+
+#endif