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ng_hub.c (128371) ng_hub.c (131155)
1/*-
2 * Copyright (c) 2004 Ruslan Ermilov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 2004 Ruslan Ermilov
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/netgraph/ng_hub.c 128371 2004-04-17 23:52:57Z ru $
26 * $FreeBSD: head/sys/netgraph/ng_hub.c 131155 2004-06-26 22:24:16Z julian $
27 */
28
29#include <sys/param.h>
30#include <sys/errno.h>
31#include <sys/kernel.h>
32#include <sys/mbuf.h>
33#include <sys/systm.h>
34

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59
60static int
61ng_hub_rcvdata(hook_p hook, item_p item)
62{
63 const node_p node = NG_HOOK_NODE(hook);
64 int error = 0;
65 hook_p hook2;
66 struct mbuf * const m = NGI_M(item), *m2;
27 */
28
29#include <sys/param.h>
30#include <sys/errno.h>
31#include <sys/kernel.h>
32#include <sys/mbuf.h>
33#include <sys/systm.h>
34

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59
60static int
61ng_hub_rcvdata(hook_p hook, item_p item)
62{
63 const node_p node = NG_HOOK_NODE(hook);
64 int error = 0;
65 hook_p hook2;
66 struct mbuf * const m = NGI_M(item), *m2;
67 meta_p const meta = NGI_META(item);
68 meta_p meta2;
69 int nhooks;
70
71 if ((nhooks = NG_NODE_NUMHOOKS(node)) == 1) {
72 NG_FREE_ITEM(item);
73 return (0);
74 }
75 LIST_FOREACH(hook2, &node->nd_hooks, hk_hooks) {
76 if (hook2 == hook)
77 continue;
78 if (--nhooks == 1)
79 NG_FWD_ITEM_HOOK(error, item, hook2);
80 else {
81 if ((m2 = m_dup(m, M_DONTWAIT)) == NULL) {
82 NG_FREE_ITEM(item);
83 return (ENOBUFS);
84 }
67 int nhooks;
68
69 if ((nhooks = NG_NODE_NUMHOOKS(node)) == 1) {
70 NG_FREE_ITEM(item);
71 return (0);
72 }
73 LIST_FOREACH(hook2, &node->nd_hooks, hk_hooks) {
74 if (hook2 == hook)
75 continue;
76 if (--nhooks == 1)
77 NG_FWD_ITEM_HOOK(error, item, hook2);
78 else {
79 if ((m2 = m_dup(m, M_DONTWAIT)) == NULL) {
80 NG_FREE_ITEM(item);
81 return (ENOBUFS);
82 }
85 if (meta != NULL) {
86 if ((meta2 = ng_copy_meta(meta)) == NULL) {
87 m_freem(m2);
88 NG_FREE_ITEM(item);
89 return (ENOMEM);
90 }
91 } else
92 meta2 = NULL;
93 NG_SEND_DATA(error, hook2, m2, meta2);
83 NG_SEND_DATA_ONLY(error, hook2, m2);
94 if (error)
95 continue; /* don't give up */
96 }
97 }
98
99 return (error);
100}
101
102static int
103ng_hub_disconnect(hook_p hook)
104{
105
106 if (NG_NODE_NUMHOOKS(NG_HOOK_NODE(hook)) == 0 &&
107 NG_NODE_IS_VALID(NG_HOOK_NODE(hook)))
108 ng_rmnode_self(NG_HOOK_NODE(hook));
109 return (0);
110}
84 if (error)
85 continue; /* don't give up */
86 }
87 }
88
89 return (error);
90}
91
92static int
93ng_hub_disconnect(hook_p hook)
94{
95
96 if (NG_NODE_NUMHOOKS(NG_HOOK_NODE(hook)) == 0 &&
97 NG_NODE_IS_VALID(NG_HOOK_NODE(hook)))
98 ng_rmnode_self(NG_HOOK_NODE(hook));
99 return (0);
100}