unix: add types for SOCK_DIAG

Change-Id: Ifcc90735b6e42b6c9971d4ba15c31b8169e005fe
Reviewed-on: https://go-review.googlesource.com/c/sys/+/579996
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>

unix/linux/types.go

@@ -143,6 +143,7 @@ struct termios2 {
 #include <linux/sched/types.h>
 #undef kernel_sched_param
 #include <linux/shm.h>
+#include <linux/sock_diag.h>
 #include <linux/socket.h>
 #include <linux/stat.h>
 #include <linux/taskstats.h>
@@ -5917,3 +5918,33 @@ const SizeofSchedAttr = C.sizeof_struct_sched_attr
 
 type Cachestat_t C.struct_cachestat
 type CachestatRange C.struct_cachestat_range
+
+// generated by:
+// $ perl -nlE '/^\s*((SK_|SKNLGRP_)\w+)/ && say "$1 = C.$1"' /usr/include/linux/sock_diag.h
+const (
+	SK_MEMINFO_RMEM_ALLOC          = C.SK_MEMINFO_RMEM_ALLOC
+	SK_MEMINFO_RCVBUF              = C.SK_MEMINFO_RCVBUF
+	SK_MEMINFO_WMEM_ALLOC          = C.SK_MEMINFO_WMEM_ALLOC
+	SK_MEMINFO_SNDBUF              = C.SK_MEMINFO_SNDBUF
+	SK_MEMINFO_FWD_ALLOC           = C.SK_MEMINFO_FWD_ALLOC
+	SK_MEMINFO_WMEM_QUEUED         = C.SK_MEMINFO_WMEM_QUEUED
+	SK_MEMINFO_OPTMEM              = C.SK_MEMINFO_OPTMEM
+	SK_MEMINFO_BACKLOG             = C.SK_MEMINFO_BACKLOG
+	SK_MEMINFO_DROPS               = C.SK_MEMINFO_DROPS
+	SK_MEMINFO_VARS                = C.SK_MEMINFO_VARS
+	SKNLGRP_NONE                   = C.SKNLGRP_NONE
+	SKNLGRP_INET_TCP_DESTROY       = C.SKNLGRP_INET_TCP_DESTROY
+	SKNLGRP_INET_UDP_DESTROY       = C.SKNLGRP_INET_UDP_DESTROY
+	SKNLGRP_INET6_TCP_DESTROY      = C.SKNLGRP_INET6_TCP_DESTROY
+	SKNLGRP_INET6_UDP_DESTROY      = C.SKNLGRP_INET6_UDP_DESTROY
+	SK_DIAG_BPF_STORAGE_REQ_NONE   = C.SK_DIAG_BPF_STORAGE_REQ_NONE
+	SK_DIAG_BPF_STORAGE_REQ_MAP_FD = C.SK_DIAG_BPF_STORAGE_REQ_MAP_FD
+	SK_DIAG_BPF_STORAGE_REP_NONE   = C.SK_DIAG_BPF_STORAGE_REP_NONE
+	SK_DIAG_BPF_STORAGE            = C.SK_DIAG_BPF_STORAGE
+	SK_DIAG_BPF_STORAGE_NONE       = C.SK_DIAG_BPF_STORAGE_NONE
+	SK_DIAG_BPF_STORAGE_PAD        = C.SK_DIAG_BPF_STORAGE_PAD
+	SK_DIAG_BPF_STORAGE_MAP_ID     = C.SK_DIAG_BPF_STORAGE_MAP_ID
+	SK_DIAG_BPF_STORAGE_MAP_VALUE  = C.SK_DIAG_BPF_STORAGE_MAP_VALUE
+)
+
+type SockDiagReq C.struct_sock_diag_req

unix/mkerrors.sh

@@ -263,6 +263,7 @@ struct ltchars {
 #include <linux/sched.h>
 #include <linux/seccomp.h>
 #include <linux/serial.h>
+#include <linux/sock_diag.h>
 #include <linux/sockios.h>
 #include <linux/taskstats.h>
 #include <linux/tipc.h>
@@ -549,6 +550,7 @@ ccflags="$@"
 		$2 !~ "NLA_TYPE_MASK" &&
 		$2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ &&
 		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
+		$2 ~ /^SOCK_|SK_DIAG_|SKNLGRP_$/ ||
 		$2 ~ /^FIORDCHK$/ ||
 		$2 ~ /^SIOC/ ||
 		$2 ~ /^TIOC/ ||