1 files changed, 107 insertions, 0 deletions
diff --git a/usr/kinit/ipconfig/netdev.h b/usr/kinit/ipconfig/netdev.h
new file mode 100644
index 0000000..dbc80cd
--- /dev/null
+++ b/usr/kinit/ipconfig/netdev.h
@@ -0,0 +1,107 @@
+#ifndef IPCONFIG_NETDEV_H
+#define IPCONFIG_NETDEV_H
+
+#include <arpa/inet.h>
+#include <sys/utsname.h>
+#include <net/if.h>
+
+#define BPLEN		256
+#define FNLEN		128			/* from DHCP  RFC 2131 */
+
+struct route {
+	uint32_t subnet;			/* subnet            */
+	uint32_t netmask_width;	/* subnet mask width */
+	uint32_t gateway;		/* gateway           */
+	struct route *next;
+};
+
+struct netdev {
+	char *name;		/* Device name          */
+	unsigned int ifindex;	/* interface index      */
+	unsigned int hwtype;	/* ARPHRD_xxx           */
+	unsigned int hwlen;	/* HW address length    */
+	uint8_t hwaddr[16];	/* HW address           */
+	uint8_t hwbrd[16];	/* Broadcast HW address */
+	unsigned int mtu;	/* Device mtu           */
+	unsigned int caps;	/* Capabilities         */
+	time_t open_time;
+
+	struct {		/* BOOTP/DHCP info      */
+		int fd;
+		uint32_t xid;
+		uint32_t gateway; /* BOOTP/DHCP gateway   */
+	} bootp;
+
+	struct {		/* RARP information     */
+		int fd;
+	} rarp;
+
+	uint8_t proto;          /* a protocol used (e.g. PROTO_DHCP) */
+	uint32_t ip_addr;	/* my address           */
+	uint32_t ip_broadcast;	/* broadcast address    */
+	uint32_t ip_server;	/* server address       */
+	uint32_t ip_netmask;	/* my subnet mask       */
+	uint32_t ip_gateway;	/* my gateway           */
+	uint32_t ip_nameserver[2];	/* two nameservers      */
+	uint32_t serverid;		/* dhcp serverid        */
+	uint32_t dhcpleasetime;	/* duration in seconds  */
+	char reqhostname[SYS_NMLN];	/* requested hostname   */
+	char hostname[SYS_NMLN];	/* hostname             */
+	char dnsdomainname[SYS_NMLN];	/* dns domain name      */
+	char nisdomainname[SYS_NMLN];	/* nis domain name      */
+	char bootpath[BPLEN];	/* boot path            */
+	char filename[FNLEN];   /* filename             */
+	char *domainsearch;	/* decoded, NULL or malloc-ed  */
+	struct route *routes;	/* decoded, NULL or malloc-ed list */
+	long uptime;		/* when complete configuration */
+	int pkt_fd;		/* packet socket for this interface */
+	struct netdev *next;	/* next configured i/f  */
+};
+
+extern struct netdev *ifaces;
+
+/*
+ * Device capabilities
+ */
+#define CAP_BOOTP	(1<<0)
+#define CAP_DHCP	(1<<1)
+#define CAP_RARP	(1<<2)
+
+/*
+ * Device states
+ */
+#define DEVST_UP	0
+#define DEVST_BOOTP	1
+#define DEVST_DHCPDISC	2
+#define DEVST_DHCPREQ	3
+#define DEVST_COMPLETE	4
+#define DEVST_ERROR	5
+
+int netdev_getflags(struct netdev *dev, short *flags);
+int netdev_setaddress(struct netdev *dev);
+int netdev_setroutes(struct netdev *dev);
+int netdev_up(struct netdev *dev);
+int netdev_down(struct netdev *dev);
+int netdev_init_if(struct netdev *dev);
+int netdev_setmtu(struct netdev *dev);
+
+static inline int netdev_running(struct netdev *dev)
+{
+	short flags;
+	int ret = netdev_getflags(dev, &flags);
+
+	return ret ? 0 : !!(flags & IFF_RUNNING);
+}
+
+static inline uint32_t netdev_genmask(uint32_t netmask_width)
+{
+	/* Map netmask width to network mask in network byte order.
+	   Example: 24 -> "255.255.255.0" -> htonl(0xFFFFFF00) */
+	if (netmask_width == 0) {
+		return 0;
+	} else {
+		return htonl(~((1u << (32 - netmask_width)) - 1));
+	}
+}
+
+#endif /* IPCONFIG_NETDEV_H */