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sdiff udiff text old ( 67506 ) new ( 69922 )
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ng_echo.c (67506) ng_echo.c (69922)
1
2/*
3 * ng_echo.c
4 *
5 * Copyright (c) 1996-1999 Whistle Communications, Inc.
6 * All rights reserved.
7 *
8 * Subject to the following obligations and disclaimer of warranty, use and

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31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35 * OF SUCH DAMAGE.
36 *
37 * Author: Julian Elisher <julian@freebsd.org>
38 *
1
2/*
3 * ng_echo.c
4 *
5 * Copyright (c) 1996-1999 Whistle Communications, Inc.
6 * All rights reserved.
7 *
8 * Subject to the following obligations and disclaimer of warranty, use and

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31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
35 * OF SUCH DAMAGE.
36 *
37 * Author: Julian Elisher <julian@freebsd.org>
38 *
39 * $FreeBSD: head/sys/netgraph/ng_echo.c 67506 2000-10-24 17:32:45Z julian $
39 * $FreeBSD: head/sys/netgraph/ng_echo.c 69922 2000-12-12 18:52:14Z julian $
40 * $Whistle: ng_echo.c,v 1.13 1999/11/01 09:24:51 julian Exp $
41 */
42
43/*
44 * Netgraph "echo" node
45 *
46 * This node simply bounces data and messages back to whence they came.
47 */

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66 NULL,
67 NULL,
68 nge_rcvmsg,
69 NULL,
70 NULL,
71 NULL,
72 NULL,
73 nge_rcvdata,
40 * $Whistle: ng_echo.c,v 1.13 1999/11/01 09:24:51 julian Exp $
41 */
42
43/*
44 * Netgraph "echo" node
45 *
46 * This node simply bounces data and messages back to whence they came.
47 */

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66 NULL,
67 NULL,
68 nge_rcvmsg,
69 NULL,
70 NULL,
71 NULL,
72 NULL,
73 nge_rcvdata,
74 nge_rcvdata,
75 nge_disconnect,
76 NULL
77};
78NETGRAPH_INIT(echo, &typestruct);
79
80/*
81 * Receive control message. We just bounce it back as a reply.
82 */

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93 return (0);
94}
95
96/*
97 * Receive data
98 */
99static int
100nge_rcvdata(hook_p hook, struct mbuf *m, meta_p meta,
74 nge_disconnect,
75 NULL
76};
77NETGRAPH_INIT(echo, &typestruct);
78
79/*
80 * Receive control message. We just bounce it back as a reply.
81 */

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92 return (0);
93}
94
95/*
96 * Receive data
97 */
98static int
99nge_rcvdata(hook_p hook, struct mbuf *m, meta_p meta,
101 struct mbuf **ret_m, meta_p *ret_meta)
100 struct mbuf **ret_m, meta_p *ret_meta, struct ng_mesg **resp)
102{
103 int error = 0;
104
105 NG_SEND_DATA(error, hook, m, meta);
106 return (error);
107}
108
109/*
110 * Removal of the last link destroys the nodeo
111 */
112static int
113nge_disconnect(hook_p hook)
114{
115 if (hook->node->numhooks == 0)
116 ng_rmnode(hook->node);
117 return (0);
118}
119
101{
102 int error = 0;
103
104 NG_SEND_DATA(error, hook, m, meta);
105 return (error);
106}
107
108/*
109 * Removal of the last link destroys the nodeo
110 */
111static int
112nge_disconnect(hook_p hook)
113{
114 if (hook->node->numhooks == 0)
115 ng_rmnode(hook->node);
116 return (0);
117}
118