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Diffstat (limited to 'sys/netgraph/ng_atmllc.c')
-rw-r--r--sys/netgraph/ng_atmllc.c286
1 files changed, 0 insertions, 286 deletions
diff --git a/sys/netgraph/ng_atmllc.c b/sys/netgraph/ng_atmllc.c
deleted file mode 100644
index d4a13fb83128..000000000000
--- a/sys/netgraph/ng_atmllc.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2003-2004 Benno Rice <benno@eloquent.com.au>
- * 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 ``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 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/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-
-#include <netgraph/ng_message.h>
-#include <netgraph/netgraph.h>
-#include <netgraph/ng_atmllc.h>
-
-#include <net/if.h>
-#include <net/ethernet.h> /* for M_HASFCS and ETHER_HDR_LEN */
-
-#define NG_ATMLLC_HEADER "\252\252\3\0\200\302"
-#define NG_ATMLLC_HEADER_LEN (sizeof(struct atmllc))
-#define NG_ATMLLC_TYPE_ETHERNET_FCS 0x0001
-#define NG_ATMLLC_TYPE_FDDI_FCS 0x0004
-#define NG_ATMLLC_TYPE_ETHERNET_NOFCS 0x0007
-#define NG_ATMLLC_TYPE_FDDI_NOFCS 0x000A
-
-struct ng_atmllc_priv {
- hook_p atm;
- hook_p ether;
- hook_p fddi;
-};
-
-struct atmllc {
- uint8_t llchdr[6]; /* aa.aa.03.00.00.00 */
- uint8_t type[2]; /* "ethernet" type */
-};
-
-/* ATM_LLC macros: note type code in host byte order */
-#define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
-#define ATM_LLC_SETTYPE(X, V) do { \
- (X)->type[0] = ((V) >> 8) & 0xff; \
- (X)->type[1] = ((V) & 0xff); \
- } while (0)
-
-/* Netgraph methods. */
-static ng_constructor_t ng_atmllc_constructor;
-static ng_shutdown_t ng_atmllc_shutdown;
-static ng_rcvmsg_t ng_atmllc_rcvmsg;
-static ng_newhook_t ng_atmllc_newhook;
-static ng_rcvdata_t ng_atmllc_rcvdata;
-static ng_disconnect_t ng_atmllc_disconnect;
-
-static struct ng_type ng_atmllc_typestruct = {
- .version = NG_ABI_VERSION,
- .name = NG_ATMLLC_NODE_TYPE,
- .constructor = ng_atmllc_constructor,
- .rcvmsg = ng_atmllc_rcvmsg,
- .shutdown = ng_atmllc_shutdown,
- .newhook = ng_atmllc_newhook,
- .rcvdata = ng_atmllc_rcvdata,
- .disconnect = ng_atmllc_disconnect,
-};
-NETGRAPH_INIT(atmllc, &ng_atmllc_typestruct);
-
-static int
-ng_atmllc_constructor(node_p node)
-{
- struct ng_atmllc_priv *priv;
-
- gone_in(14, "ng_atmllc");
-
- priv = malloc(sizeof(*priv), M_NETGRAPH, M_WAITOK | M_ZERO);
- NG_NODE_SET_PRIVATE(node, priv);
-
- return (0);
-}
-
-static int
-ng_atmllc_rcvmsg(node_p node, item_p item, hook_p lasthook)
-{
- struct ng_mesg *msg;
- int error;
-
- error = 0;
- NGI_GET_MSG(item, msg);
- msg->header.flags |= NGF_RESP;
- NG_RESPOND_MSG(error, node, item, msg);
- return (error);
-}
-
-static int
-ng_atmllc_shutdown(node_p node)
-{
- struct ng_atmllc_priv *priv;
-
- priv = NG_NODE_PRIVATE(node);
-
- free(priv, M_NETGRAPH);
-
- NG_NODE_UNREF(node);
-
- return (0);
-}
-
-static int
-ng_atmllc_newhook(node_p node, hook_p hook, const char *name)
-{
- struct ng_atmllc_priv *priv;
-
- priv = NG_NODE_PRIVATE(node);
-
- if (strcmp(name, NG_ATMLLC_HOOK_ATM) == 0) {
- if (priv->atm != NULL) {
- return (EISCONN);
- }
- priv->atm = hook;
- } else if (strcmp(name, NG_ATMLLC_HOOK_ETHER) == 0) {
- if (priv->ether != NULL) {
- return (EISCONN);
- }
- priv->ether = hook;
- } else if (strcmp(name, NG_ATMLLC_HOOK_FDDI) == 0) {
- if (priv->fddi != NULL) {
- return (EISCONN);
- }
- priv->fddi = hook;
- } else {
- return (EINVAL);
- }
-
- return (0);
-}
-
-static int
-ng_atmllc_rcvdata(hook_p hook, item_p item)
-{
- struct ng_atmllc_priv *priv;
- struct mbuf *m;
- struct atmllc *hdr;
- hook_p outhook;
- u_int padding;
- int error;
-
- priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
- NGI_GET_M(item, m);
- outhook = NULL;
- padding = 0;
-
- if (hook == priv->atm) {
- /* Ditch the pseudoheader. */
- hdr = mtod(m, struct atmllc *);
- /* m_adj(m, sizeof(struct atm_pseudohdr)); */
-
- /*
- * Make sure we have the LLC and ethernet headers.
- * The ethernet header size is slightly larger than the FDDI
- * header, which is convenient.
- */
- if (m->m_len < sizeof(struct atmllc) + ETHER_HDR_LEN) {
- m = m_pullup(m, sizeof(struct atmllc) + ETHER_HDR_LEN);
- if (m == NULL) {
- NG_FREE_ITEM(item);
- return (ENOMEM);
- }
- }
-
- /* Decode the LLC header. */
- hdr = mtod(m, struct atmllc *);
- if (ATM_LLC_TYPE(hdr) == NG_ATMLLC_TYPE_ETHERNET_NOFCS) {
- m->m_flags &= ~M_HASFCS;
- outhook = priv->ether;
- padding = 2;
- } else if (ATM_LLC_TYPE(hdr) == NG_ATMLLC_TYPE_ETHERNET_FCS) {
- m->m_flags |= M_HASFCS;
- outhook = priv->ether;
- padding = 2;
- } else if (ATM_LLC_TYPE(hdr) == NG_ATMLLC_TYPE_FDDI_NOFCS) {
- m->m_flags &= ~M_HASFCS;
- outhook = priv->fddi;
- padding = 3;
- } else if (ATM_LLC_TYPE(hdr) == NG_ATMLLC_TYPE_FDDI_FCS) {
- m->m_flags |= M_HASFCS;
- outhook = priv->fddi;
- padding = 3;
- } else {
- printf("ng_atmllc: unknown type: %x\n",
- ATM_LLC_TYPE(hdr));
- }
-
- /* Remove the LLC header and any padding*/
- m_adj(m, sizeof(struct atmllc) + padding);
- } else if (hook == priv->ether) {
- /* Add the LLC header */
- M_PREPEND(m, NG_ATMLLC_HEADER_LEN + 2, M_NOWAIT);
- if (m == NULL) {
- printf("ng_atmllc: M_PREPEND failed\n");
- NG_FREE_ITEM(item);
- return (ENOMEM);
- }
- hdr = mtod(m, struct atmllc *);
- bzero((void *)hdr, sizeof(struct atmllc) + 2);
- bcopy(NG_ATMLLC_HEADER, hdr->llchdr, 6);
- if ((m->m_flags & M_HASFCS) != 0) {
- ATM_LLC_SETTYPE(hdr, NG_ATMLLC_TYPE_ETHERNET_FCS);
- } else {
- ATM_LLC_SETTYPE(hdr, NG_ATMLLC_TYPE_ETHERNET_NOFCS);
- }
- outhook = priv->atm;
- } else if (hook == priv->fddi) {
- /* Add the LLC header */
- M_PREPEND(m, NG_ATMLLC_HEADER_LEN + 3, M_NOWAIT);
- if (m == NULL) {
- printf("ng_atmllc: M_PREPEND failed\n");
- NG_FREE_ITEM(item);
- return (ENOMEM);
- }
- hdr = mtod(m, struct atmllc *);
- bzero((void *)hdr, sizeof(struct atmllc) + 3);
- bcopy(NG_ATMLLC_HEADER, hdr->llchdr, 6);
- if ((m->m_flags & M_HASFCS) != 0) {
- ATM_LLC_SETTYPE(hdr, NG_ATMLLC_TYPE_FDDI_FCS);
- } else {
- ATM_LLC_SETTYPE(hdr, NG_ATMLLC_TYPE_FDDI_NOFCS);
- }
- outhook = priv->atm;
- }
-
- if (outhook == NULL) {
- NG_FREE_M(m);
- NG_FREE_ITEM(item);
- return (0);
- }
-
- NG_FWD_NEW_DATA(error, item, outhook, m);
- return (error);
-}
-
-static int
-ng_atmllc_disconnect(hook_p hook)
-{
- node_p node;
- struct ng_atmllc_priv *priv;
-
- node = NG_HOOK_NODE(hook);
- priv = NG_NODE_PRIVATE(node);
-
- if (hook == priv->atm) {
- priv->atm = NULL;
- } else if (hook == priv->ether) {
- priv->ether = NULL;
- } else if (hook == priv->fddi) {
- priv->fddi = NULL;
- }
-
- if (NG_NODE_NUMHOOKS(node) == 0 && NG_NODE_IS_VALID(node)) {
- ng_rmnode_self(node);
- }
-
- return (0);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 19:58:06 +0000