1 files changed, 125 insertions, 0 deletions
diff --git a/src/pmdas/solaris/netlink.c b/src/pmdas/solaris/netlink.c
new file mode 100644
index 0000000..d3b61bf
--- /dev/null
+++ b/src/pmdas/solaris/netlink.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2010 Max Matveev. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/* Extract per-link network information via kstat.
+ *
+ * Link stats are in the sections called "link" and the stat name
+ * is the same as the link names */
+
+#include <kstat.h>
+#include "common.h"
+
+int
+netlink_fetch(pmdaMetric *pm, int inst, pmAtomValue *av)
+{
+    char *lname;
+    metricdesc_t *md = pm->m_user;
+    kstat_t *k;
+    char *stat = (char *)md->md_offset;
+
+    if (pmdaCacheLookup(indomtab[NETLINK_INDOM].it_indom, inst, &lname,
+                        (void **)&k) != PMDA_CACHE_ACTIVE)
+        return PM_ERR_INST;
+
+    if (k) {
+	kstat_named_t *kn = kstat_data_lookup(k, stat);
+
+	if (kn == NULL) {
+	    fprintf(stderr, "No kstat called %s for %s\n", stat, lname);
+	    return 0;
+	}
+
+        switch (pm->m_desc.type) {
+        case PM_TYPE_32:
+	    if (kn->data_type == KSTAT_DATA_INT32) {
+		av->l = kn->value.i32;
+		return 1;
+	    }
+	    break;
+        case PM_TYPE_U32:
+	    if (kn->data_type == KSTAT_DATA_UINT32) {
+		av->ul = kn->value.ui32;
+		return 1;
+	    }
+	    break;
+        case PM_TYPE_64:
+	    if (kn->data_type == KSTAT_DATA_INT64) {
+		av->ll = kn->value.i64;
+		return 1;
+	    }
+	    break;
+        case PM_TYPE_U64:
+	    if (kn->data_type == KSTAT_DATA_UINT64) {
+		av->ull = kn->value.ui64;
+		return 1;
+	    }
+	    break;
+	}
+    }
+
+    return 0;
+}
+
+void
+netlink_update_stats(int fetch)
+{
+    kstat_t *k;
+    kstat_ctl_t *kc;
+    pmInDom indom = indomtab[NETLINK_INDOM].it_indom;
+
+    if ((kc = kstat_ctl_update()) == NULL)
+	return;
+
+    for (k = kc->kc_chain; k != NULL; k = k->ks_next) {
+	if (strcmp(k->ks_module, "link") == 0) {
+	    int rv;
+	    kstat_t *cached;
+
+	    if (pmdaCacheLookupName(indom, k->ks_name, &rv,
+				    (void **)&cached) != PMDA_CACHE_ACTIVE) {
+		rv = pmdaCacheStore(indom, PMDA_CACHE_ADD, k->ks_name, k);
+		if (rv < 0) {
+		    __pmNotifyErr(LOG_WARNING,
+				  "Cannot create instance for "
+				  "network link '%s': %s\n",
+				  k->ks_name, pmErrStr(rv));
+		    continue;
+		}
+	    }
+
+	    if (fetch)
+		kstat_read(kc, k, NULL);
+	}
+    }
+}
+
+void
+netlink_refresh(void)
+{
+    pmdaCacheOp(indomtab[NETLINK_INDOM].it_indom, PMDA_CACHE_INACTIVE);
+    netlink_update_stats(1);
+    pmdaCacheOp(indomtab[NETLINK_INDOM].it_indom, PMDA_CACHE_SAVE);
+}
+
+void
+netlink_init(int first)
+{
+    pmdaCacheOp(indomtab[NETLINK_INDOM].it_indom, PMDA_CACHE_LOAD);
+    netlink_update_stats(0);
+    pmdaCacheOp(indomtab[NETLINK_INDOM].it_indom, PMDA_CACHE_SAVE);
+}