syscall: add network interface constants for linux/386, linux/amd64

R=rsc
CC=golang-dev
https://golang.org/cl/3266042

src/pkg/syscall/mkerrors.sh

@@ -29,6 +29,8 @@ includes_Linux='
 #include <sys/stat.h>
 #include <linux/ptrace.h>
 #include <linux/wait.h>
+#include <linux/if_tun.h>
+#include <net/if.h>
 #include <netpacket/packet.h>
 '
 
@@ -83,24 +85,27 @@ done
 	echo "${!indirect} $includes" | $GCC -x c - -E -dM $ccflags |
 	awk '
 		$1 != "#define" || $2 ~ /\(/ {next}
-		
+
 		$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next}  # 386 registers
 		$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
 		$2 ~ /^(SCM_SRCRT)$/ {next}
 		$2 ~ /^(MAP_FAILED)$/ {next}
 
+		$2 !~ /^ETH_/ &&
 		$2 ~ /^E[A-Z0-9_]+$/ ||
 		$2 ~ /^SIG[^_]/ ||
 		$2 ~ /^IN_/ ||
-		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|EVFILT|EV|SHUT|PROT|MAP|PACKET|MSG|SCM)_/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|EVFILT|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|IFF)_/ ||
 		$2 == "SOMAXCONN" ||
 		$2 == "NAME_MAX" ||
+		$2 == "IFNAMSIZ" ||
+		$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
 		$2 ~ /^(O|F|FD|NAME|S|PTRACE)_/ ||
 		$2 ~ /^SIO/ ||
 		$2 ~ /^W[A-Z0-9]+$/ {printf("\t$%s = %s,\n", $2, $2)}
 		$2 ~ /^__WCOREFLAG$/ {next}
 		$2 ~ /^__W[A-Z0-9]+$/ {printf("\t$%s = %s,\n", substr($2,3), $2)}
-		
+
 		{next}
 	' | sort
 

src/pkg/syscall/zerrors_linux_386.go

@@ -232,6 +232,29 @@ const (
 	F_ULOCK                          = 0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	IFF_ALLMULTI                     = 0x200
+	IFF_AUTOMEDIA                    = 0x4000
+	IFF_BROADCAST                    = 0x2
+	IFF_DEBUG                        = 0x4
+	IFF_DYNAMIC                      = 0x8000
+	IFF_LOOPBACK                     = 0x8
+	IFF_MASTER                       = 0x400
+	IFF_MULTICAST                    = 0x1000
+	IFF_NOARP                        = 0x80
+	IFF_NOTRAILERS                   = 0x20
+	IFF_NO_PI                        = 0x1000
+	IFF_ONE_QUEUE                    = 0x2000
+	IFF_POINTOPOINT                  = 0x10
+	IFF_PORTSEL                      = 0x2000
+	IFF_PROMISC                      = 0x100
+	IFF_RUNNING                      = 0x40
+	IFF_SLAVE                        = 0x800
+	IFF_TAP                          = 0x2
+	IFF_TUN                          = 0x1
+	IFF_TUN_EXCL                     = 0x8000
+	IFF_UP                           = 0x1
+	IFF_VNET_HDR                     = 0x4000
+	IFNAMSIZ                         = 0x10
 	IN_ACCESS                        = 0x1
 	IN_ALL_EVENTS                    = 0xfff
 	IN_ATTRIB                        = 0x4
@@ -723,6 +746,19 @@ const (
 	TCP_QUICKACK                     = 0xc
 	TCP_SYNCNT                       = 0x7
 	TCP_WINDOW_CLAMP                 = 0xa
+	TUNGETFEATURES                   = 0x800454cf
+	TUNGETIFF                        = 0x800454d2
+	TUNGETSNDBUF                     = 0x800454d3
+	TUNSETDEBUG                      = 0x400454c9
+	TUNSETGROUP                      = 0x400454ce
+	TUNSETIFF                        = 0x400454ca
+	TUNSETLINK                       = 0x400454cd
+	TUNSETNOCSUM                     = 0x400454c8
+	TUNSETOFFLOAD                    = 0x400454d0
+	TUNSETOWNER                      = 0x400454cc
+	TUNSETPERSIST                    = 0x400454cb
+	TUNSETSNDBUF                     = 0x400454d4
+	TUNSETTXFILTER                   = 0x400454d1
 	WALL                             = 0x40000000
 	WCLONE                           = 0x80000000
 	WCONTINUED                       = 0x8

src/pkg/syscall/zerrors_linux_amd64.go

@@ -232,6 +232,29 @@ const (
 	F_ULOCK                          = 0
 	F_UNLCK                          = 0x2
 	F_WRLCK                          = 0x1
+	IFF_ALLMULTI                     = 0x200
+	IFF_AUTOMEDIA                    = 0x4000
+	IFF_BROADCAST                    = 0x2
+	IFF_DEBUG                        = 0x4
+	IFF_DYNAMIC                      = 0x8000
+	IFF_LOOPBACK                     = 0x8
+	IFF_MASTER                       = 0x400
+	IFF_MULTICAST                    = 0x1000
+	IFF_NOARP                        = 0x80
+	IFF_NOTRAILERS                   = 0x20
+	IFF_NO_PI                        = 0x1000
+	IFF_ONE_QUEUE                    = 0x2000
+	IFF_POINTOPOINT                  = 0x10
+	IFF_PORTSEL                      = 0x2000
+	IFF_PROMISC                      = 0x100
+	IFF_RUNNING                      = 0x40
+	IFF_SLAVE                        = 0x800
+	IFF_TAP                          = 0x2
+	IFF_TUN                          = 0x1
+	IFF_TUN_EXCL                     = 0x8000
+	IFF_UP                           = 0x1
+	IFF_VNET_HDR                     = 0x4000
+	IFNAMSIZ                         = 0x10
 	IN_ACCESS                        = 0x1
 	IN_ALL_EVENTS                    = 0xfff
 	IN_ATTRIB                        = 0x4
@@ -724,6 +747,19 @@ const (
 	TCP_QUICKACK                     = 0xc
 	TCP_SYNCNT                       = 0x7
 	TCP_WINDOW_CLAMP                 = 0xa
+	TUNGETFEATURES                   = 0x800454cf
+	TUNGETIFF                        = 0x800454d2
+	TUNGETSNDBUF                     = 0x800454d3
+	TUNSETDEBUG                      = 0x400454c9
+	TUNSETGROUP                      = 0x400454ce
+	TUNSETIFF                        = 0x400454ca
+	TUNSETLINK                       = 0x400454cd
+	TUNSETNOCSUM                     = 0x400454c8
+	TUNSETOFFLOAD                    = 0x400454d0
+	TUNSETOWNER                      = 0x400454cc
+	TUNSETPERSIST                    = 0x400454cb
+	TUNSETSNDBUF                     = 0x400454d4
+	TUNSETTXFILTER                   = 0x400454d1
 	WALL                             = 0x40000000
 	WCLONE                           = 0x80000000
 	WCONTINUED                       = 0x8