diff options
| -rw-r--r-- | share/man/man4/Makefile | 1 | ||||
| -rw-r--r-- | share/man/man4/ng_bridge.4 | 2 | ||||
| -rw-r--r-- | share/man/man4/ng_hub.4 | 66 | ||||
| -rw-r--r-- | share/man/man4/ng_one2many.4 | 1 | ||||
| -rw-r--r-- | sys/modules/netgraph/Makefile | 1 | ||||
| -rw-r--r-- | sys/modules/netgraph/hub/Makefile | 6 | ||||
| -rw-r--r-- | sys/netgraph/ng_hub.c | 110 | ||||
| -rw-r--r-- | sys/netgraph/ng_hub.h | 36 |
8 files changed, 223 insertions, 0 deletions
diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile index 3f96b4f..fc4c4f1 100644 --- a/share/man/man4/Makefile +++ b/share/man/man4/Makefile @@ -170,6 +170,7 @@ MAN= aac.4 \ ng_h4.4 \ ng_hci.4 \ ng_hole.4 \ + ng_hub.4 \ ng_iface.4 \ ng_ip_input.4 \ ng_ksocket.4 \ diff --git a/share/man/man4/ng_bridge.4 b/share/man/man4/ng_bridge.4 index 219eaef..b9a04db 100644 --- a/share/man/man4/ng_bridge.4 +++ b/share/man/man4/ng_bridge.4 @@ -195,6 +195,8 @@ Example script showing how to set up a bridging network .Xr bridge 4 , .Xr netgraph 4 , .Xr ng_ether 4 , +.Xr ng_hub 4 , +.Xr ng_one2many 4 , .Xr ngctl 8 .Sh HISTORY The diff --git a/share/man/man4/ng_hub.4 b/share/man/man4/ng_hub.4 new file mode 100644 index 0000000..a1ad068 --- /dev/null +++ b/share/man/man4/ng_hub.4 @@ -0,0 +1,66 @@ +.\" Copyright (c) 2004 Ruslan Ermilov +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd April 17, 2004 +.Dt NG_HUB 4 +.Os +.Sh NAME +.Nm ng_hub +.Nd packet distribution netgraph node type +.Sh SYNOPSIS +.In netgraph/ng_hub.h +.Sh DESCRIPTION +The +.Nm hub +node type provides a simple mechanism for distributing packets over +several links. +Packets received on any of the hooks are forwarded out the other hooks. +Packets are not altered in any way. +.Sh HOOKS +A +.Nm hub +node accepts any request to connect, regardless of the hook name, +as long as the name is unique. +.Sh CONTROL MESSAGES +This node type supports only the generic control messages. +.Sh SHUTDOWN +This node shuts down upon receipt of a +.Dv NGM_SHUTDOWN +control message, or when all hooks have been disconnected. +.Sh SEE ALSO +.Xr netgraph 4 , +.Xr ng_bridge 4 , +.Xr ng_ether 4 , +.Xr ng_one2many 4 , +.Xr ngctl 8 , +.Xr nghook 8 +.Sh HISTORY +The +.Nm +node type appeared in +.Fx 5.3 . +.Sh AUTHORS +.An Ruslan Ermilov Aq ru@FreeBSD.org diff --git a/share/man/man4/ng_one2many.4 b/share/man/man4/ng_one2many.4 index 1238680..08078bc 100644 --- a/share/man/man4/ng_one2many.4 +++ b/share/man/man4/ng_one2many.4 @@ -228,6 +228,7 @@ A good candidate is Cisco's Etherchannel. .Xr netgraph 4 , .Xr ng_bridge 4 , .Xr ng_ether 4 , +.Xr ng_hub 4 , .Xr ngctl 8 .Sh HISTORY The diff --git a/sys/modules/netgraph/Makefile b/sys/modules/netgraph/Makefile index 3b92f0b..d3abf41 100644 --- a/sys/modules/netgraph/Makefile +++ b/sys/modules/netgraph/Makefile @@ -17,6 +17,7 @@ SUBDIR= UI \ gif \ gif_demux \ hole \ + hub \ iface \ ip_input \ ksocket \ diff --git a/sys/modules/netgraph/hub/Makefile b/sys/modules/netgraph/hub/Makefile new file mode 100644 index 0000000..9ebb54d --- /dev/null +++ b/sys/modules/netgraph/hub/Makefile @@ -0,0 +1,6 @@ +# $FreeBSD$ + +KMOD= ng_hub +SRCS= ng_hub.c + +.include <bsd.kmod.mk> diff --git a/sys/netgraph/ng_hub.c b/sys/netgraph/ng_hub.c new file mode 100644 index 0000000..bf61f6a --- /dev/null +++ b/sys/netgraph/ng_hub.c @@ -0,0 +1,110 @@ +/*- + * Copyright (c) 2004 Ruslan Ermilov + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/mbuf.h> +#include <sys/systm.h> + +#include <netgraph/ng_message.h> +#include <netgraph/ng_hub.h> +#include <netgraph/netgraph.h> + +static ng_constructor_t ng_hub_constructor; +static ng_rcvdata_t ng_hub_rcvdata; +static ng_disconnect_t ng_hub_disconnect; + +static struct ng_type ng_hub_typestruct = { + .version = NG_ABI_VERSION, + .name = NG_HUB_NODE_TYPE, + .constructor = ng_hub_constructor, + .rcvdata = ng_hub_rcvdata, + .disconnect = ng_hub_disconnect, +}; +NETGRAPH_INIT(hub, &ng_hub_typestruct); + + +static int +ng_hub_constructor(node_p node) +{ + + return (0); +} + +static int +ng_hub_rcvdata(hook_p hook, item_p item) +{ + const node_p node = NG_HOOK_NODE(hook); + int error = 0; + hook_p hook2; + struct mbuf * const m = NGI_M(item), *m2; + meta_p const meta = NGI_META(item); + meta_p meta2; + int nhooks; + + if ((nhooks = NG_NODE_NUMHOOKS(node)) == 1) { + NG_FREE_ITEM(item); + return (0); + } + LIST_FOREACH(hook2, &node->nd_hooks, hk_hooks) { + if (hook2 == hook) + continue; + if (--nhooks == 1) + NG_FWD_ITEM_HOOK(error, item, hook2); + else { + if ((m2 = m_dup(m, M_DONTWAIT)) == NULL) { + NG_FREE_ITEM(item); + return (ENOBUFS); + } + if (meta != NULL) { + if ((meta2 = ng_copy_meta(meta)) == NULL) { + m_freem(m2); + NG_FREE_ITEM(item); + return (ENOMEM); + } + } else + meta2 = NULL; + NG_SEND_DATA(error, hook2, m2, meta2); + if (error) + break; + } + } + + return (error); +} + +static int +ng_hub_disconnect(hook_p hook) +{ + + if (NG_NODE_NUMHOOKS(NG_HOOK_NODE(hook)) == 0 && + NG_NODE_IS_VALID(NG_HOOK_NODE(hook))) + ng_rmnode_self(NG_HOOK_NODE(hook)); + return (0); +} diff --git a/sys/netgraph/ng_hub.h b/sys/netgraph/ng_hub.h new file mode 100644 index 0000000..a735d7b --- /dev/null +++ b/sys/netgraph/ng_hub.h @@ -0,0 +1,36 @@ +/*- + * Copyright (c) 2004 Ruslan Ermilov + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _NETGRAPH_NG_HUB_H_ +#define _NETGRAPH_NG_HUB_H_ + +/* Node type name and magic cookie. */ +#define NG_HUB_NODE_TYPE "hub" +#define NGM_HUB_COOKIE 1082189597 + +#endif /* _NETGRAPH_NG_HUB_H_ */ |
