Expose if_capabilities to userland so that ifconfig can display the

device hardware features.
Tune ifconfig to show them with 'hwfeatures' argument.
While here, kill some old unused capabilities and respect 80 columns
in brconfig.h.

ok mcbride@, henning@, mpf@.

3 files changed, 42 insertions, 8 deletions

diff --git a/sbin/ifconfig/brconfig.h b/sbin/ifconfig/brconfig.h
index 8d3471686a6..81728b5012f 100644
--- a/sbin/ifconfig/brconfig.h
+++ b/sbin/ifconfig/brconfig.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: brconfig.h,v 1.4 2011/03/13 15:31:41 stsp Exp $	*/
+/*	$OpenBSD: brconfig.h,v 1.5 2011/11/02 02:03:47 haesbaert Exp $	*/
 
 /*
  * Copyright (c) 2009 Claudio Jeker <claudio@openbsd.org>
@@ -65,10 +65,11 @@ int is_bridge(char *);
 void bridge_status(void);
 int bridge_rule(int, char **, int);
 
-
-#define	IFFBITS \
-"\024\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS\7RUNNING\10NOARP\
-\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2\20MULTICAST\21TXREADY\22NOINET6\23INET6_PRIVACY\24MPLS\25WOL"
+#define	IFFBITS								\
+	"\024\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS" \
+	"\7RUNNING\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX"	\
+	"\15LINK0\16LINK1\17LINK2\20MULTICAST\21TXREADY\22NOINET6"	\
+	"\23INET6_PRIVACY\24MPLS\25WOL"
 
 void printb(char *, unsigned int, char *);
 
diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 751a788ab0b..b1975562589 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ifconfig.8,v 1.220 2011/10/25 11:39:07 jmc Exp $
+.\"	$OpenBSD: ifconfig.8,v 1.221 2011/11/02 02:03:47 haesbaert Exp $
 .\"	$NetBSD: ifconfig.8,v 1.11 1996/01/04 21:27:29 pk Exp $
 .\"     $FreeBSD: ifconfig.8,v 1.16 1998/02/01 07:03:29 steve Exp $
 .\"
@@ -31,7 +31,7 @@
 .\"
 .\"     @(#)ifconfig.8	8.4 (Berkeley) 6/1/94
 .\"
-.Dd $Mdocdate: October 25 2011 $
+.Dd $Mdocdate: November 2 2011 $
 .Dt IFCONFIG 8
 .Os
 .Sh NAME
@@ -156,6 +156,8 @@ Disable the use of ARP.
 Specify the address to use to represent broadcasts to the
 network.
 The default broadcast address is the address with a host part of all 1's.
+.It Cm hwfeatures
+Display the interface hardware features.
 .It Cm create
 Create the specified network pseudo-device.
 At least the following devices can be created on demand:
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c
index 2bb408361f3..7030997542b 100644
--- a/sbin/ifconfig/ifconfig.c
+++ b/sbin/ifconfig/ifconfig.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ifconfig.c,v 1.250 2011/09/19 20:29:10 henning Exp $	*/
+/*	$OpenBSD: ifconfig.c,v 1.251 2011/11/02 02:03:47 haesbaert Exp $	*/
 /*	$NetBSD: ifconfig.c,v 1.40 1997/10/01 02:19:43 enami Exp $	*/
 
 /*
@@ -105,6 +105,11 @@
 #include "brconfig.h"
 #include "pbkdf2.h"
 
+#define HWFEATURESBITS							\
+	"\024\1CSUM_IPv4\2CSUM_TCPv4\3CSUM_UDPv4\4IPSEC"		\
+	"\5VLAN_MTU\6VLAN_HWTAGGING\7IPCOMP\10CSUM_TCPv6"		\
+	"\11CSUM_UDPv6\12TCPv4_Rx\13UDPv4_Rx\20WOL"
+
 struct	ifreq		ifr, ridreq;
 struct	in_aliasreq	in_addreq;
 #ifdef INET6
@@ -131,6 +136,7 @@ int	Lflag = 1;
 #endif /* INET6 */
 
 int	showmediaflag;
+int	showcapsflag;
 int	shownet80211chans;
 int	shownet80211nodes;
 
@@ -248,6 +254,7 @@ void	setifipdst(const char *, int);
 void	setifdesc(const char *, int);
 void	unsetifdesc(const char *, int);
 int	printgroup(char *, int);
+void	printifhwfeatures(const char *, int);
 #else
 void	setignore(const char *, int);
 #endif
@@ -334,6 +341,7 @@ const struct	cmd {
 	{ "-autoconfprivacy",	-IFXF_INET6_PRIVACY,	0,	setifxflags },
 #endif /*INET6*/
 #ifndef SMALL
+	{ "hwfeatures", NEXTARG0,	0,		printifhwfeatures },
 	{ "group",	NEXTARG,	0,		setifgroup },
 	{ "-group",	NEXTARG,	0,		unsetifgroup },
 	{ "trailers",	-1,		0,		notrailers },
@@ -2780,6 +2788,10 @@ status(int link, struct sockaddr_dl *sdl, int ls)
 	if (mtu)
 		printf(" mtu %lu", mtu);
 	putchar('\n');
+#ifndef SMALL
+	if (showcapsflag)
+		printifhwfeatures(NULL, 1);
+#endif
 	if (sdl != NULL && sdl->sdl_alen &&
 	    (sdl->sdl_type == IFT_ETHER || sdl->sdl_type == IFT_CARP))
 		(void)printf("\tlladdr %s\n", ether_ntoa(
@@ -4697,6 +4709,25 @@ getifgroups(void)
 
 	free(ifgr.ifgr_groups);
 }
+
+void
+printifhwfeatures(const char *unused, int show)
+{
+	struct if_data ifrdat;
+	
+	if (!show) {
+		if (showcapsflag)
+			usage(1);
+		showcapsflag = 1;
+		return;
+	}
+	bzero(&ifrdat, sizeof(ifrdat));
+	ifr.ifr_data = (caddr_t)&ifrdat;
+	if (ioctl(s, SIOCGIFDATA, (caddr_t)&ifr) == -1)
+		err(1, "SIOCGIFDATA");
+	printb("\thwfeatures", (u_int)ifrdat.ifi_capabilities, HWFEATURESBITS);
+	putchar('\n');
+}
 #endif
 
 #ifdef INET6