4770 soconfig(1M) needs an option to print the in-kernel socket configuration table
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
diff --git a/usr/src/uts/common/fs/sockfs/sockparams.c b/usr/src/uts/common/fs/sockfs/sockparams.c
index fb147f5..1015dec 100644
--- a/usr/src/uts/common/fs/sockfs/sockparams.c
+++ b/usr/src/uts/common/fs/sockfs/sockparams.c
@@ -21,6 +21,7 @@
/*
* Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
*/
#include <sys/types.h>
@@ -30,6 +31,7 @@
#include <sys/sysmacros.h>
#include <sys/cmn_err.h>
#include <sys/list.h>
+#include <sys/sunddi.h>
#include <sys/stropts.h>
#include <sys/socket.h>
@@ -824,3 +826,82 @@
sockparams_filter_cleanup_impl(ent, &sphead);
return (error);
}
+
+/*
+ * Setup and return socket configuration table.
+ */
+int
+sockparams_copyout_socktable(uintptr_t socktable)
+{
+ STRUCT_DECL(sockconfig_socktable, st);
+ struct sockparams *sp;
+ uint_t count;
+ uint_t i = 0;
+ int ret = 0;
+ sockconfig_socktable_entry_t *se;
+
+ STRUCT_INIT(st, get_udatamodel());
+ if (ddi_copyin((void *)socktable, STRUCT_BUF(st),
+ STRUCT_SIZE(st), 0) != 0)
+ return (EFAULT);
+
+ rw_enter(&sockconf_lock, RW_READER);
+
+ count = STRUCT_FGET(st, num_of_entries);
+ /*
+ * If the output buffer is size zero, just copy out the count.
+ */
+ if (count == 0) {
+ for (sp = list_head(&sphead); sp != NULL;
+ sp = list_next(&sphead, sp)) {
+ count++;
+ }
+ STRUCT_FSET(st, num_of_entries, count);
+
+ rw_exit(&sockconf_lock);
+ if (ddi_copyout(STRUCT_BUF(st), (void *)socktable,
+ STRUCT_SIZE(st), 0) != 0)
+ return (EFAULT);
+
+ return (0);
+ }
+
+ se = kmem_alloc(count * sizeof (sockconfig_socktable_entry_t),
+ KM_SLEEP);
+ for (sp = list_head(&sphead); sp != NULL;
+ sp = list_next(&sphead, sp)) {
+ if (i >= count) {
+ /*
+ * Return if the number of entries has changed.
+ */
+ rw_exit(&sockconf_lock);
+ kmem_free(se,
+ count * sizeof (sockconfig_socktable_entry_t));
+ return (EAGAIN);
+ }
+ se[i].se_family = sp->sp_family;
+ se[i].se_type = sp->sp_type;
+ se[i].se_protocol = sp->sp_protocol;
+ (void) strncpy(se[i].se_modname, sp->sp_smod_name,
+ MODMAXNAMELEN);
+ if (sp->sp_sdev_info.sd_devpath != NULL)
+ (void) strncpy(se[i].se_strdev,
+ sp->sp_sdev_info.sd_devpath, MAXPATHLEN);
+ se[i].se_refcnt = sp->sp_refcnt;
+ se[i].se_flags = sp->sp_flags;
+ i++;
+ }
+ rw_exit(&sockconf_lock);
+ if (ddi_copyout(se, STRUCT_FGETP(st, st_entries),
+ i * sizeof (sockconfig_socktable_entry_t), 0) != 0)
+ ret = EFAULT;
+
+ STRUCT_FSET(st, num_of_entries, i);
+ kmem_free(se, count * sizeof (sockconfig_socktable_entry_t));
+
+ if (ddi_copyout(STRUCT_BUF(st), (void *)socktable,
+ STRUCT_SIZE(st), 0) != 0)
+ ret = EFAULT;
+
+ return (ret);
+}