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authorbrooks <brooks@FreeBSD.org>2001-09-27 21:54:27 +0000
committerbrooks <brooks@FreeBSD.org>2001-09-27 21:54:27 +0000
commit007e5330cc79ac7027596460e0f2c42e039f7f1a (patch)
treecb553afe30d20126f318da19eab21a2f04bd5605
parent652fbe490a08dbe006a102511c2a57c6c1f87ed5 (diff)
downloadFreeBSD-src-007e5330cc79ac7027596460e0f2c42e039f7f1a.zip
FreeBSD-src-007e5330cc79ac7027596460e0f2c42e039f7f1a.tar.gz
Add ng_ip_input. A new netgraph node for queuing IP packets into the
main IP input processing code.
-rw-r--r--share/man/man4/Makefile1
-rw-r--r--share/man/man4/ng_ip_input.4102
-rw-r--r--sys/conf/files1
-rw-r--r--sys/conf/options1
-rw-r--r--sys/modules/netgraph/Makefile1
-rw-r--r--sys/modules/netgraph/ip_input/Makefile7
-rw-r--r--sys/netgraph/ng_ip_input.c142
-rw-r--r--sys/netgraph/ng_ip_input.h75
8 files changed, 330 insertions, 0 deletions
diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 950495a..22e115b 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -93,6 +93,7 @@ MAN= aac.4 \
ng_gif.4 \
ng_hole.4 \
ng_iface.4 \
+ ng_ip_input.4 \
ng_ksocket.4 \
ng_lmi.4 \
ng_mppc.4 \
diff --git a/share/man/man4/ng_ip_input.4 b/share/man/man4/ng_ip_input.4
new file mode 100644
index 0000000..5b2db82
--- /dev/null
+++ b/share/man/man4/ng_ip_input.4
@@ -0,0 +1,102 @@
+.\" Copyright 2001 The Aerospace Corporation. 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.
+.\" 3. The name of The Aerospace Corporation may not be used to endorse or
+.\" promote products derived from this software.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION "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 AEROSPACE CORPORATION 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.
+.\"
+.\" Copyright (c) 1996-1999 Whistle Communications, Inc.
+.\" All rights reserved.
+.\"
+.\" Subject to the following obligations and disclaimer of warranty, use and
+.\" redistribution of this software, in source or object code forms, with or
+.\" without modifications are expressly permitted by Whistle Communications;
+.\" provided, however, that:
+.\" 1. Any and all reproductions of the source or object code must include the
+.\" copyright notice above and the following disclaimer of warranties; and
+.\" 2. No rights are granted, in any manner or form, to use Whistle
+.\" Communications, Inc. trademarks, including the mark "WHISTLE
+.\" COMMUNICATIONS" on advertising, endorsements, or otherwise except as
+.\" such appears in the above copyright notice or in the software.
+.\"
+.\" THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
+.\" TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
+.\" REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
+.\" INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+.\" WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
+.\" REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
+.\" SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
+.\" IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
+.\" RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
+.\" WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+.\" PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
+.\" OF SUCH DAMAGE.
+.\"
+.\" Author: Brooks Davis <brooks@FreeBSD.org>
+.\" Derived from: ng_hole.4
+.\"
+.\" $FreeBSD$
+.\"
+.Dd September 27, 2001
+.Dt NG_IP_INPUT 4
+.Os
+.Sh NAME
+.Nm ng_ip_input
+.Nd netgraph IP input node type
+.Sh SYNOPSIS
+.Fd #include <netgraph/ng_ip_input.h>
+.Sh DESCRIPTION
+The
+.Nm ip_input
+node type takes all recieved packets and queues them into the IP in
+input processing subsystem.
+.Sh HOOKS
+A
+.Nm
+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.
+Other control messages are silently discarded.
+.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 ngctl 8
+.Sh HISTORY
+The
+.Nm
+node type was implemented in
+.Fx 5.0 .
+.Sh AUTHORS
+.An Brooks Davis Aq brooks@FreeBSD.org
+.Sh BUGS
+The
+.Nm
+node type should probably keep some sort of statistics.
diff --git a/sys/conf/files b/sys/conf/files
index 0c06941..7e3a947 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1033,6 +1033,7 @@ netgraph/ng_gif.c optional netgraph_gif
netgraph/ng_gif_demux.c optional netgraph_gif_demux
netgraph/ng_hole.c optional netgraph_hole
netgraph/ng_iface.c optional netgraph_iface
+netgraph/ng_ip_input.c optional netgraph_ip_input
netgraph/ng_ksocket.c optional netgraph_ksocket
netgraph/ng_lmi.c optional netgraph_lmi
netgraph/ng_mppc.c optional netgraph_mppc_compression
diff --git a/sys/conf/options b/sys/conf/options
index 34e79d3..a388814 100644
--- a/sys/conf/options
+++ b/sys/conf/options
@@ -315,6 +315,7 @@ NETGRAPH_GIF opt_netgraph.h
NETGRAPH_GIF_DEMUX opt_netgraph.h
NETGRAPH_HOLE opt_netgraph.h
NETGRAPH_IFACE opt_netgraph.h
+NETGRAPH_IP_INPUT opt_netgraph.h
NETGRAPH_KSOCKET opt_netgraph.h
NETGRAPH_LMI opt_netgraph.h
# MPPC compression requires proprietary files (not included)
diff --git a/sys/modules/netgraph/Makefile b/sys/modules/netgraph/Makefile
index c043147..b5c06eb 100644
--- a/sys/modules/netgraph/Makefile
+++ b/sys/modules/netgraph/Makefile
@@ -13,6 +13,7 @@ SUBDIR= async \
gif_demux \
hole \
iface \
+ ip_input \
ksocket \
lmi \
netgraph \
diff --git a/sys/modules/netgraph/ip_input/Makefile b/sys/modules/netgraph/ip_input/Makefile
new file mode 100644
index 0000000..8421f55
--- /dev/null
+++ b/sys/modules/netgraph/ip_input/Makefile
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+KMOD= ng_ip_input
+SRCS= ng_ip_input.c
+NOMAN=
+
+.include <bsd.kmod.mk>
diff --git a/sys/netgraph/ng_ip_input.c b/sys/netgraph/ng_ip_input.c
new file mode 100644
index 0000000..eb8a74d
--- /dev/null
+++ b/sys/netgraph/ng_ip_input.c
@@ -0,0 +1,142 @@
+/*
+ * ng_ip_input.c
+ *
+ * Copyright 2001 The Aerospace Corporation. 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.
+ * 3. The name of The Aerospace Corporation may not be used to endorse or
+ * promote products derived from this software.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION "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 AEROSPACE CORPORATION 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.
+ *
+ * Copyright (c) 1996-1999 Whistle Communications, Inc.
+ * All rights reserved.
+ *
+ * Subject to the following obligations and disclaimer of warranty, use and
+ * redistribution of this software, in source or object code forms, with or
+ * without modifications are expressly permitted by Whistle Communications;
+ * provided, however, that:
+ * 1. Any and all reproductions of the source or object code must include the
+ * copyright notice above and the following disclaimer of warranties; and
+ * 2. No rights are granted, in any manner or form, to use Whistle
+ * Communications, Inc. trademarks, including the mark "WHISTLE
+ * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
+ * such appears in the above copyright notice or in the software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
+ * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
+ * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+ * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
+ * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
+ * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
+ * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
+ * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
+ * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Brooks Davis <brooks@FreeBSD.org>
+ * Derived from: ng_hole.c
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * This node simply takes IP packets and calls ip_input on them
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <net/if_types.h>
+#include <net/if_var.h>
+#include <netinet/in.h>
+#include <netinet/in_var.h>
+#include <net/netisr.h>
+#include <netgraph/ng_message.h>
+#include <netgraph/netgraph.h>
+#include <netgraph/ng_ip_input.h>
+
+/* Netgraph methods */
+static ng_constructor_t ngipi_cons;
+static ng_rcvdata_t ngipi_rcvdata;
+static ng_disconnect_t ngipi_disconnect;
+
+static struct ng_type typestruct = {
+ NG_ABI_VERSION,
+ NG_IP_INPUT_NODE_TYPE,
+ NULL, /* modeventhand_t */
+ ngipi_cons, /* ng_constructor_t */
+ NULL, /* ng_rcvmsg_t */
+ NULL, /* ng_shutdown_t */
+ NULL, /* ng_newhook_t */
+ NULL, /* ng_findhook_t */
+ NULL, /* ng_connect_t */
+ ngipi_rcvdata, /* ng_rcvdata_t */
+ ngipi_disconnect, /* ng_disconnect_t */
+ NULL /* ng_cmdlist */
+};
+NETGRAPH_INIT(ip_input, &typestruct);
+
+/*
+ * Be obliging. but no work to do.
+ */
+static int
+ngipi_cons(node_p node)
+{
+ return(0);
+}
+
+/*
+ * Receive data
+ */
+static int
+ngipi_rcvdata(hook_p hook, item_p item)
+{
+ struct mbuf *m;
+
+ NGI_GET_M(item, m);
+ NG_FREE_ITEM(item);
+ schednetisr(NETISR_IP);
+ (void) IF_HANDOFF(&ipintrq, m, NULL);
+ return 0;
+}
+
+/*
+ * Hook disconnection
+ */
+static int
+ngipi_disconnect(hook_p hook)
+{
+ if (NG_NODE_NUMHOOKS(NG_HOOK_NODE(hook)) == 0)
+ ng_rmnode_self(NG_HOOK_NODE(hook));
+ return (0);
+}
diff --git a/sys/netgraph/ng_ip_input.h b/sys/netgraph/ng_ip_input.h
new file mode 100644
index 0000000..8c087b5
--- /dev/null
+++ b/sys/netgraph/ng_ip_input.h
@@ -0,0 +1,75 @@
+/*
+ * ng_ip_input.h
+ *
+ * Copyright 2001 The Aerospace Corporation. 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.
+ * 3. The name of The Aerospace Corporation may not be used to endorse or
+ * promote products derived from this software.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AEROSPACE CORPORATION "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 AEROSPACE CORPORATION 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.
+ *
+ * Copyright (c) 1996-1999 Whistle Communications, Inc.
+ * All rights reserved.
+ *
+ * Subject to the following obligations and disclaimer of warranty, use and
+ * redistribution of this software, in source or object code forms, with or
+ * without modifications are expressly permitted by Whistle Communications;
+ * provided, however, that:
+ * 1. Any and all reproductions of the source or object code must include the
+ * copyright notice above and the following disclaimer of warranties; and
+ * 2. No rights are granted, in any manner or form, to use Whistle
+ * Communications, Inc. trademarks, including the mark "WHISTLE
+ * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
+ * such appears in the above copyright notice or in the software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
+ * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
+ * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
+ * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
+ * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
+ * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
+ * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
+ * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
+ * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ *
+ * Author: Brooks Davis <brooks@FreeBSD.org>
+ * Derived from: ng_hole.h
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _NETGRAPH_IP_INPUT_H_
+#define _NETGRAPH_IP_INPUT_H_
+
+/* Node type name and magic cookie */
+#define NG_IP_INPUT_NODE_TYPE "ip_input"
+#define NGM_IP_INPUT_COOKIE 994874907
+
+#endif /* _NETGRAPH_IP_INPUT_H_ */
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