1 files changed, 194 insertions, 0 deletions

diff --git a/Documentation/connector/cn_test.c b/Documentation/connector/cn_test.c
new file mode 100644
index 000000000000..b7de82e9c0e0
--- /dev/null
+++ b/Documentation/connector/cn_test.c
@@ -0,0 +1,194 @@
+/*
+ *      cn_test.c
+ * 
+ * 2004-2005 Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/skbuff.h>
+#include <linux/timer.h>
+
+#include "connector.h"
+
+static struct cb_id cn_test_id = { 0x123, 0x456 };
+static char cn_test_name[] = "cn_test";
+static struct sock *nls;
+static struct timer_list cn_test_timer;
+
+void cn_test_callback(void *data)
+{
+        struct cn_msg *msg = (struct cn_msg *)data;
+
+        printk("%s: %lu: idx=%x, val=%x, seq=%u, ack=%u, len=%d: %s.\n",
+               __func__, jiffies, msg->id.idx, msg->id.val,
+               msg->seq, msg->ack, msg->len, (char *)msg->data);
+}
+
+static int cn_test_want_notify(void)
+{
+        struct cn_ctl_msg *ctl;
+        struct cn_notify_req *req;
+        struct cn_msg *msg = NULL;
+        int size, size0;
+        struct sk_buff *skb;
+        struct nlmsghdr *nlh;
+        u32 group = 1;
+
+        size0 = sizeof(*msg) + sizeof(*ctl) + 3 * sizeof(*req);
+
+        size = NLMSG_SPACE(size0);
+
+        skb = alloc_skb(size, GFP_ATOMIC);
+        if (!skb) {
+                printk(KERN_ERR "Failed to allocate new skb with size=%u.\n",
+                       size);
+
+                return -ENOMEM;
+        }
+
+        nlh = NLMSG_PUT(skb, 0, 0x123, NLMSG_DONE, size - sizeof(*nlh));
+
+        msg = (struct cn_msg *)NLMSG_DATA(nlh);
+
+        memset(msg, 0, size0);
+
+        msg->id.idx = -1;
+        msg->id.val = -1;
+        msg->seq = 0x123;
+        msg->ack = 0x345;
+        msg->len = size0 - sizeof(*msg);
+
+        ctl = (struct cn_ctl_msg *)(msg + 1);
+
+        ctl->idx_notify_num = 1;
+        ctl->val_notify_num = 2;
+        ctl->group = group;
+        ctl->len = msg->len - sizeof(*ctl);
+
+        req = (struct cn_notify_req *)(ctl + 1);
+
+        /*
+         * Idx.
+         */
+        req->first = cn_test_id.idx;
+        req->range = 10;
+
+        /*
+         * Val 0.
+         */
+        req++;
+        req->first = cn_test_id.val;
+        req->range = 10;
+
+        /*
+         * Val 1.
+         */
+        req++;
+        req->first = cn_test_id.val + 20;
+        req->range = 10;
+
+        NETLINK_CB(skb).dst_groups = ctl->group;
+        //netlink_broadcast(nls, skb, 0, ctl->group, GFP_ATOMIC);
+        netlink_unicast(nls, skb, 0, 0);
+
+        printk(KERN_INFO "Request was sent. Group=0x%x.\n", ctl->group);
+
+        return 0;
+
+nlmsg_failure:
+        printk(KERN_ERR "Failed to send %u.%u\n", msg->seq, msg->ack);
+        kfree_skb(skb);
+        return -EINVAL;
+}
+
+static u32 cn_test_timer_counter;
+static void cn_test_timer_func(unsigned long __data)
+{
+        struct cn_msg *m;
+        char data[32];
+
+        m = kmalloc(sizeof(*m) + sizeof(data), GFP_ATOMIC);
+        if (m) {
+                memset(m, 0, sizeof(*m) + sizeof(data));
+
+                memcpy(&m->id, &cn_test_id, sizeof(m->id));
+                m->seq = cn_test_timer_counter;
+                m->len = sizeof(data);
+
+                m->len =
+                    scnprintf(data, sizeof(data), "counter = %u",
+                              cn_test_timer_counter) + 1;
+
+                memcpy(m + 1, data, m->len);
+
+                cn_netlink_send(m, 0, gfp_any());
+                kfree(m);
+        }
+
+        cn_test_timer_counter++;
+
+        mod_timer(&cn_test_timer, jiffies + HZ);
+}
+
+static int cn_test_init(void)
+{
+        int err;
+
+        err = cn_add_callback(&cn_test_id, cn_test_name, cn_test_callback);
+        if (err)
+                goto err_out;
+        cn_test_id.val++;
+        err = cn_add_callback(&cn_test_id, cn_test_name, cn_test_callback);
+        if (err) {
+                cn_del_callback(&cn_test_id);
+                goto err_out;
+        }
+
+        init_timer(&cn_test_timer);
+        cn_test_timer.function = cn_test_timer_func;
+        cn_test_timer.expires = jiffies + HZ;
+        cn_test_timer.data = 0;
+        add_timer(&cn_test_timer);
+
+        return 0;
+
+      err_out:
+        if (nls && nls->sk_socket)
+                sock_release(nls->sk_socket);
+
+        return err;
+}
+
+static void cn_test_fini(void)
+{
+        del_timer_sync(&cn_test_timer);
+        cn_del_callback(&cn_test_id);
+        cn_test_id.val--;
+        cn_del_callback(&cn_test_id);
+        if (nls && nls->sk_socket)
+                sock_release(nls->sk_socket);
+}
+
+module_init(cn_test_init);
+module_exit(cn_test_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Evgeniy Polyakov <johnpol@2ka.mipt.ru>");
+MODULE_DESCRIPTION("Connector's test module");