<net/if_ether.h>

Change-Id: I7425aae72ab43e3fcec8373f7c589273d36f7fcb

commands/dhcpd/dhcpd.h

@@ -6,6 +6,7 @@
 #define nil ((void*)0)
 
 #include <minix/paths.h>
+#include <net/if_ether.h>
 
 /* Paths to files. */
 #define PATH_DHCPCONF	_PATH_DHCPCONF

include/net/gen/eth_hdr.h

@@ -5,6 +5,8 @@ server/ip/gen/eth_hdr.h
 #ifndef __SERVER__IP__GEN__ETH_HDR_H__
 #define __SERVER__IP__GEN__ETH_HDR_H__
 
+#include <net/if_ether.h>
+
 typedef struct eth_hdr
 {
 	ether_addr_t eh_dst;

include/net/gen/eth_io.h

@@ -5,6 +5,8 @@ server/gen/ip/eth_io.h
 #ifndef __SERVER__IP__GEN__ETH_IO_H__
 #define __SERVER__IP__GEN__ETH_IO_H__
 
+#include <net/if_ether.h>
+
 typedef struct nwio_ethopt
 {
 	u32_t nweo_flags;

include/net/gen/ether.h

@@ -11,11 +11,6 @@ server/ip/gen/ether.h
 #define ETH_HDR_SIZE			  14
 #define ETH_CRC_SIZE			   4
 
-typedef struct ether_addr
-{
-	u8_t ea_addr[6];
-} ether_addr_t;
-
 typedef u16_t ether_type_t;
 
 #define ETH_ARP_PROTO	 0x806

include/net/gen/if_ether.h

@@ -1,18 +1 @@
-/*
+#include <net/if_ether.h>
-server/ip/gen/if_ether.h
-*/
-
-#ifndef __SERVER__IP__GEN__IF_ETHER_H__
-#define __SERVER__IP__GEN__IF_ETHER_H__
-
-struct ether_addr;
-
-#define _PATH_ETHERS	"/etc/ethers"
-
-char *ether_ntoa( struct ether_addr *e );
-struct ether_addr *ether_aton( const char *s );
-int ether_ntohost( char *hostname, struct ether_addr *e );
-int ether_hostton( char *hostname, struct ether_addr *e );
-int ether_line( char *l, struct ether_addr *e, char *hostname );
-
-#endif /* __SERVER__IP__GEN__IF_ETHER_H__ */

sys/net/if_ether.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: if_ether.h,v 1.58 2010/05/19 20:41:59 christos Exp $	*/
+/*	$NetBSD: if_ether.h,v 1.59 2012/09/30 05:08:08 dholland Exp $	*/
 
 /*
  * Copyright (c) 1982, 1986, 1993
@@ -34,6 +34,17 @@
 #ifndef _NET_IF_ETHER_H_
 #define _NET_IF_ETHER_H_
 
+#ifdef _KERNEL
+#ifdef _KERNEL_OPT
+#include "opt_mbuftrace.h"
+#endif
+#include <sys/mbuf.h>
+#endif
+
+#ifndef _STANDALONE
+#include <net/if.h>
+#endif
+
 /*
  * Some basic Ethernet constants.
  */
@@ -59,6 +70,11 @@ struct ether_addr {
 	uint8_t ether_addr_octet[ETHER_ADDR_LEN];
 } __packed;
 
+#ifdef __minix
+#define ea_addr ether_addr_octet
+typedef struct ether_addr ether_addr_t;
+#endif
+
 /*
  * Structure of a 10Mb/s Ethernet header.
  */
@@ -93,6 +109,222 @@ struct ether_header {
 #define	ETHER_CRC_POLY_LE	0xedb88320
 #define	ETHER_CRC_POLY_BE	0x04c11db6
 
+#ifndef _STANDALONE
+
+/*
+ * Ethernet-specific mbuf flags.
+ */
+#define	M_HASFCS	M_LINK0	/* FCS included at end of frame */
+#define	M_PROMISC	M_LINK1	/* this packet is not for us */
+
+#ifdef _KERNEL
+/*
+ * Macro to map an IP multicast address to an Ethernet multicast address.
+ * The high-order 25 bits of the Ethernet address are statically assigned,
+ * and the low-order 23 bits are taken from the low end of the IP address.
+ */
+#define ETHER_MAP_IP_MULTICAST(ipaddr, enaddr)				\
+	/* const struct in_addr *ipaddr; */				\
+	/* uint8_t enaddr[ETHER_ADDR_LEN]; */				\
+do {									\
+	(enaddr)[0] = 0x01;						\
+	(enaddr)[1] = 0x00;						\
+	(enaddr)[2] = 0x5e;						\
+	(enaddr)[3] = ((const uint8_t *)ipaddr)[1] & 0x7f;		\
+	(enaddr)[4] = ((const uint8_t *)ipaddr)[2];			\
+	(enaddr)[5] = ((const uint8_t *)ipaddr)[3];			\
+} while (/*CONSTCOND*/0)
+/*
+ * Macro to map an IP6 multicast address to an Ethernet multicast address.
+ * The high-order 16 bits of the Ethernet address are statically assigned,
+ * and the low-order 32 bits are taken from the low end of the IP6 address.
+ */
+#define ETHER_MAP_IPV6_MULTICAST(ip6addr, enaddr)			\
+	/* struct in6_addr *ip6addr; */					\
+	/* uint8_t enaddr[ETHER_ADDR_LEN]; */				\
+{                                                                       \
+	(enaddr)[0] = 0x33;						\
+	(enaddr)[1] = 0x33;						\
+	(enaddr)[2] = ((const uint8_t *)ip6addr)[12];			\
+	(enaddr)[3] = ((const uint8_t *)ip6addr)[13];			\
+	(enaddr)[4] = ((const uint8_t *)ip6addr)[14];			\
+	(enaddr)[5] = ((const uint8_t *)ip6addr)[15];			\
+}
+#endif
+
+struct mii_data;
+
+struct ethercom;
+
+typedef int (*ether_cb_t)(struct ethercom *);
+
+#ifndef __minix
+/*
+ * Structure shared between the ethernet driver modules and
+ * the multicast list code.  For example, each ec_softc or il_softc
+ * begins with this structure.
+ */
+struct ethercom {
+	struct	ifnet ec_if;			/* network-visible interface */
+	LIST_HEAD(, ether_multi) ec_multiaddrs;	/* list of ether multicast
+						   addrs */
+	int	ec_multicnt;			/* length of ec_multiaddrs
+						   list */
+	int	ec_capabilities;		/* capabilities, provided by
+						   driver */
+	int	ec_capenable;			/* tells hardware which
+						   capabilities to enable */
+
+	int	ec_nvlans;			/* # VLANs on this interface */
+	/* The device handle for the MII bus child device. */
+	struct mii_data				*ec_mii;
+	/* Called after a change to ec_if.if_flags.  Returns
+	 * ENETRESET if the device should be reinitialized with
+	 * ec_if.if_init, 0 on success, not 0 on failure.
+	 */
+	ether_cb_t				ec_ifflags_cb;
+#ifdef MBUFTRACE
+	struct	mowner ec_rx_mowner;		/* mbufs received */
+	struct	mowner ec_tx_mowner;		/* mbufs transmitted */
+#endif
+};
+#endif
+
+#define	ETHERCAP_VLAN_MTU	0x00000001	/* VLAN-compatible MTU */
+#define	ETHERCAP_VLAN_HWTAGGING	0x00000002	/* hardware VLAN tag support */
+#define	ETHERCAP_JUMBO_MTU	0x00000004	/* 9000 byte MTU supported */
+
+#ifdef	_KERNEL
+extern const uint8_t etherbroadcastaddr[ETHER_ADDR_LEN];
+extern const uint8_t ethermulticastaddr_slowprotocols[ETHER_ADDR_LEN];
+extern const uint8_t ether_ipmulticast_min[ETHER_ADDR_LEN];
+extern const uint8_t ether_ipmulticast_max[ETHER_ADDR_LEN];
+
+void	ether_set_ifflags_cb(struct ethercom *, ether_cb_t);
+int	ether_ioctl(struct ifnet *, u_long, void *);
+int	ether_addmulti(const struct sockaddr *, struct ethercom *);
+int	ether_delmulti(const struct sockaddr *, struct ethercom *);
+int	ether_multiaddr(const struct sockaddr *, uint8_t[], uint8_t[]);
+#endif /* _KERNEL */
+
+#ifndef __minix
+/*
+ * Ethernet multicast address structure.  There is one of these for each
+ * multicast address or range of multicast addresses that we are supposed
+ * to listen to on a particular interface.  They are kept in a linked list,
+ * rooted in the interface's ethercom structure.
+ */
+struct ether_multi {
+	uint8_t enm_addrlo[ETHER_ADDR_LEN]; /* low  or only address of range */
+	uint8_t enm_addrhi[ETHER_ADDR_LEN]; /* high or only address of range */
+	u_int	 enm_refcount;		/* no. claims to this addr/range */
+	LIST_ENTRY(ether_multi) enm_list;
+};
+#endif
+
+/*
+ * Structure used by macros below to remember position when stepping through
+ * all of the ether_multi records.
+ */
+struct ether_multistep {
+	struct ether_multi  *e_enm;
+};
+
+/*
+ * Macro for looking up the ether_multi record for a given range of Ethernet
+ * multicast addresses connected to a given ethercom structure.  If no matching
+ * record is found, "enm" returns NULL.
+ */
+#define ETHER_LOOKUP_MULTI(addrlo, addrhi, ec, enm)			\
+	/* uint8_t addrlo[ETHER_ADDR_LEN]; */				\
+	/* uint8_t addrhi[ETHER_ADDR_LEN]; */				\
+	/* struct ethercom *ec; */					\
+	/* struct ether_multi *enm; */					\
+{									\
+	for ((enm) = LIST_FIRST(&(ec)->ec_multiaddrs);			\
+	    (enm) != NULL &&						\
+	    (memcmp((enm)->enm_addrlo, (addrlo), ETHER_ADDR_LEN) != 0 ||	\
+	     memcmp((enm)->enm_addrhi, (addrhi), ETHER_ADDR_LEN) != 0);	\
+		(enm) = LIST_NEXT((enm), enm_list));			\
+}
+
+/*
+ * Macro to step through all of the ether_multi records, one at a time.
+ * The current position is remembered in "step", which the caller must
+ * provide.  ETHER_FIRST_MULTI(), below, must be called to initialize "step"
+ * and get the first record.  Both macros return a NULL "enm" when there
+ * are no remaining records.
+ */
+#define ETHER_NEXT_MULTI(step, enm) \
+	/* struct ether_multistep step; */  \
+	/* struct ether_multi *enm; */  \
+{ \
+	if (((enm) = (step).e_enm) != NULL) \
+		(step).e_enm = LIST_NEXT((enm), enm_list); \
+}
+
+#define ETHER_FIRST_MULTI(step, ec, enm) \
+	/* struct ether_multistep step; */ \
+	/* struct ethercom *ec; */ \
+	/* struct ether_multi *enm; */ \
+{ \
+	(step).e_enm = LIST_FIRST(&(ec)->ec_multiaddrs); \
+	ETHER_NEXT_MULTI((step), (enm)); \
+}
+
+#ifdef _KERNEL
+
+/*
+ * Ethernet 802.1Q VLAN structures.
+ */
+
+/* add VLAN tag to input/received packet */
+static inline int vlan_input_tag(struct ifnet *, struct mbuf *, u_int);
+static inline int
+vlan_input_tag(struct ifnet *ifp, struct mbuf *m, u_int vlanid)
+{
+	struct m_tag *mtag;
+	mtag = m_tag_get(PACKET_TAG_VLAN, sizeof(u_int), M_NOWAIT);
+	if (mtag == NULL) {
+		ifp->if_ierrors++;
+		printf("%s: unable to allocate VLAN tag\n", ifp->if_xname);
+		m_freem(m);
+		return 1;
+	}
+	*(u_int *)(mtag + 1) = vlanid;
+	m_tag_prepend(m, mtag);
+	return 0;
+}
+
+#define VLAN_INPUT_TAG(ifp, m, vlanid, _errcase)		\
+    if (vlan_input_tag(ifp, m, vlanid) != 0) {	 		\
+	_errcase;						\
+    }
+
+/* extract VLAN tag from output/trasmit packet */
+#define VLAN_OUTPUT_TAG(ec, m0)			\
+	(VLAN_ATTACHED(ec) ? m_tag_find((m0), PACKET_TAG_VLAN, NULL) : NULL)
+
+/* extract VLAN ID value from a VLAN tag */
+#define VLAN_TAG_VALUE(mtag)	\
+	((*(u_int *)(mtag + 1)) & 4095)
+
+/* test if any VLAN is configured for this interface */
+#define VLAN_ATTACHED(ec)	((ec)->ec_nvlans > 0)
+
+void	ether_ifattach(struct ifnet *, const uint8_t *);
+void	ether_ifdetach(struct ifnet *);
+int	ether_mediachange(struct ifnet *);
+void	ether_mediastatus(struct ifnet *, struct ifmediareq *);
+
+char	*ether_sprintf(const uint8_t *);
+char	*ether_snprintf(char *, size_t, const uint8_t *);
+
+uint32_t ether_crc32_le(const uint8_t *, size_t);
+uint32_t ether_crc32_be(const uint8_t *, size_t);
+
+int	ether_aton_r(u_char *, size_t, const char *);
+#else
 /*
  * Prototype ethers(3) functions.
  */
@@ -105,5 +337,8 @@ int	ether_ntohost(char *, const struct ether_addr *);
 int	ether_hostton(const char *, struct ether_addr *);
 int	ether_line(const char *, struct ether_addr *, char *);
 __END_DECLS
+#endif
+
+#endif /* _STANDALONE */
 
 #endif /* !_NET_IF_ETHER_H_ */