4770 soconfig(1M) needs an option to print the in-kernel socket configuration table

@@ -18,10 +18,11 @@
  *
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
  */
 
 #include <ctype.h>
 #include <dirent.h>
 #include <errno.h>

@@ -52,10 +53,13 @@
  *              registers
  *
  *      soconfig <fam> <type> <protocol>
  *              deregisters
  *
+ *      soconfig -l
+ *              print the in-kernel socket configuration table
+ *
  * Filter Operations (Consolidation Private):
  *
  *      soconfig -F <name> <modname> {auto [top | bottom | before:filter |
  *              after:filter] | prog} <fam>:<type>:<proto>,...
  *              configure filter

@@ -77,10 +81,12 @@
 
 static void     usage(void);
 
 static int      parse_filter_params(int argc, char **argv);
 
+static int      print_socktable();
+
 int
 main(argc, argv)
         int argc;
         char *argv[];
 {

@@ -92,10 +98,15 @@
 #if !defined(TEXT_DOMAIN)
 #define TEXT_DOMAIN "SYS_TEST"
 #endif
         (void) textdomain(TEXT_DOMAIN);
 
+        if (argc == 1 && strcmp(argv[0], "-l") == 0) {
+                ret = print_socktable();
+                exit(ret);
+        }
+
         if (argc >= 2 && strcmp(argv[0], "-F") == 0) {
                 argc--; argv++;
                 ret = parse_filter_params(argc, argv);
                 exit(ret);
         }

@@ -126,11 +137,12 @@
 {
         fprintf(stderr, gettext(
             "Usage:     soconfig -d <dir>\n"
             "\tsoconfig -f <file>\n"
             "\tsoconfig <fam> <type> <protocol> <path|module>\n"
-            "\tsoconfig <fam> <type> <protocol>\n"));
+            "\tsoconfig <fam> <type> <protocol>\n"
+            "\tsoconfig -l\n"));
 }
 
 /*
  * Parse all files in the given directory.
  */

@@ -573,5 +585,61 @@
                 return (1);
         }
         free(socktuples);
         return (0);
 }
+
+/*
+ *  Print the in-kernel socket configuration table
+ */
+
+static int
+print_socktable()
+{
+        sockconfig_socktable_t sc_table;
+        int i;
+
+        (void) memset(&sc_table, 0, sizeof (sockconfig_socktable_t));
+
+        /* get number of entries */
+        if (_sockconfig(SOCKCONFIG_GET_SOCKTABLE, &sc_table) == -1) {
+                fprintf(stderr,
+                    gettext("cannot get in-kernel socket table: %s\n"),
+                    strerror(errno));
+                return (-1);
+        }
+        if (sc_table.num_of_entries == 0)
+                return (0);
+
+        sc_table.st_entries = calloc(sc_table.num_of_entries,
+            sizeof (sockconfig_socktable_entry_t));
+        if (sc_table.st_entries == NULL) {
+                fprintf(stderr, gettext("out of memory\n"));
+                return (-1);
+        }
+
+        /* get socket table entries */
+        if (_sockconfig(SOCKCONFIG_GET_SOCKTABLE, &sc_table) == -1) {
+                fprintf(stderr,
+                    gettext("cannot get in-kernel socket table: %s\n"),
+                    strerror(errno));
+                return (-1);
+        }
+
+        printf("%6s %4s %5s %15s %15s %6s %6s\n",
+            "FAMILY", "TYPE", "PROTO", "STRDEV", "SOCKMOD",
+            "REFS", "FLAGS");
+        for (i = 0; i < sc_table.num_of_entries; i++) {
+                printf("%6u %4u %5u %15s %15s %6u %#6x\n",
+                    sc_table.st_entries[i].se_family,
+                    sc_table.st_entries[i].se_type,
+                    sc_table.st_entries[i].se_protocol,
+                    (strcmp(sc_table.st_entries[i].se_modname,
+                    "socktpi") == 0) ?
+                    sc_table.st_entries[i].se_strdev : "-",
+                    sc_table.st_entries[i].se_modname,
+                    sc_table.st_entries[i].se_refcnt,
+                    sc_table.st_entries[i].se_flags);
+        }
+        free(sc_table.st_entries);
+        return (0);
+}