add wireless measurement probe infrastructure, developed at Fraunhofer FOKUS

SVN-Revision: 15050

1 files changed, 175 insertions, 0 deletions

diff --git a/package/wprobe/src/user/wprobe-info.c b/package/wprobe/src/user/wprobe-info.c
new file mode 100644
index 0000000..b891871
--- /dev/null
+++ b/package/wprobe/src/user/wprobe-info.c
@@ -0,0 +1,175 @@
+/*
+ * wprobe-test.c: Wireless probe user space test code
+ * Copyright (C) 2008-2009 Felix Fietkau <nbd@openwrt.org>
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <linux/wprobe.h>
+#include "wprobe.h"
+
+static const char *
+wprobe_dump_value(struct wprobe_attribute *attr)
+{
+	static char buf[128];
+
+#define HANDLE_TYPE(_type, _format) \
+	case WPROBE_VAL_##_type: \
+		snprintf(buf, sizeof(buf), _format, attr->val._type); \
+		break
+
+	switch(attr->type) {
+		HANDLE_TYPE(S8, "%d");
+		HANDLE_TYPE(S16, "%d");
+		HANDLE_TYPE(S32, "%d");
+		HANDLE_TYPE(S64, "%lld");
+		HANDLE_TYPE(U8, "%d");
+		HANDLE_TYPE(U16, "%d");
+		HANDLE_TYPE(U32, "%d");
+		HANDLE_TYPE(U64, "%lld");
+		case WPROBE_VAL_STRING:
+			/* FIXME: implement this */
+		default:
+			strncpy(buf, "<unknown>", sizeof(buf));
+			break;
+	}
+	if ((attr->flags & WPROBE_F_KEEPSTAT) &&
+		(attr->val.n > 0)) {
+		int len = strlen(buf);
+		snprintf(buf + len, sizeof(buf) - len, " (avg: %.02f; stdev: %.02f, n=%d)", attr->val.avg, attr->val.stdev, attr->val.n);
+	}
+#undef HANDLE_TYPE
+
+	return buf;
+}
+
+
+static void
+wprobe_dump_data(const char *ifname, struct list_head *gl, struct list_head *ll, struct list_head *ls)
+{
+	struct wprobe_attribute *attr;
+	struct wprobe_link *link;
+	bool first = true;
+
+	fprintf(stderr, "\n");
+	wprobe_request_data(ifname, gl, NULL, 2);
+	list_for_each_entry(attr, gl, list) {
+		fprintf(stderr, (first ?
+			"Global:            %s=%s\n" :
+			"                   %s=%s\n"),
+			attr->name,
+			wprobe_dump_value(attr)
+		);
+		first = false;
+	}
+
+	list_for_each_entry(link, ls, list) {
+		first = true;
+		wprobe_request_data(ifname, ll, link->addr, 2);
+		list_for_each_entry(attr, ll, list) {
+			if (first) {
+				fprintf(stderr,
+					"%02x:%02x:%02x:%02x:%02x:%02x: %s=%s\n",
+					link->addr[0], link->addr[1], link->addr[2],
+					link->addr[3], link->addr[4], link->addr[5],
+					attr->name,
+					wprobe_dump_value(attr));
+				first = false;
+			} else {
+				fprintf(stderr,
+					"                   %s=%s\n",
+					attr->name,
+					wprobe_dump_value(attr));
+			}
+		}
+	}
+}
+
+static const char *attr_typestr[] = {
+	[0] = "Unknown",
+	[WPROBE_VAL_STRING] = "String",
+	[WPROBE_VAL_U8] = "Unsigned 8 bit",
+	[WPROBE_VAL_U16] = "Unsigned 16 bit",
+	[WPROBE_VAL_U32] = "Unsigned 32 bit",
+	[WPROBE_VAL_U64] = "Unsigned 64 bit",
+	[WPROBE_VAL_S8] = "Signed 8 bit",
+	[WPROBE_VAL_S16] = "Signed 16 bit",
+	[WPROBE_VAL_S32] = "Signed 32 bit",
+	[WPROBE_VAL_S64] = "Signed 64 bit",
+};
+
+static int usage(const char *prog)
+{
+	fprintf(stderr, "Usage: %s <interface>\n", prog);
+	return 1;
+}
+
+int main(int argc, char **argv)
+{
+	struct wprobe_attribute *attr;
+	const char *ifname;
+	LIST_HEAD(global_attr);
+	LIST_HEAD(link_attr);
+	LIST_HEAD(links);
+	int i = 0;
+
+	if (argc < 2)
+		return usage(argv[0]);
+
+	ifname = argv[1];
+
+	if (wprobe_init() != 0)
+		return -1;
+
+	wprobe_dump_attributes(ifname, false, &global_attr, NULL);
+	wprobe_dump_attributes(ifname, true, &link_attr, NULL);
+
+	if (list_empty(&global_attr) &&
+		list_empty(&link_attr)) {
+		fprintf(stderr, "Interface '%s' not found\n", ifname);
+		return -1;
+	}
+
+	list_for_each_entry(attr, &global_attr, list) {
+		fprintf(stderr, "Global attribute: '%s' (%s)\n",
+			attr->name, attr_typestr[attr->type]);
+	}
+	list_for_each_entry(attr, &link_attr, list) {
+		fprintf(stderr, "Link attribute: '%s' (%s)\n",
+			attr->name, attr_typestr[attr->type]);
+	}
+
+	while (1) {
+		usleep(100 * 1000);
+		wprobe_measure(ifname);
+
+		if (i-- > 0)
+			continue;
+
+		i = 10;
+		wprobe_update_links(ifname, &links);
+		wprobe_dump_data(ifname, &global_attr, &link_attr, &links);
+	}
+	wprobe_free();
+
+	return 0;
+}