aboutsummaryrefslogtreecommitdiff
path: root/sys/netgraph
diff options
context:
space:
mode:
authorGleb Smirnoff <glebius@FreeBSD.org>2021-10-21 04:08:13 +0000
committerGleb Smirnoff <glebius@FreeBSD.org>2021-10-22 18:41:36 +0000
commit6aae3517ed2500fb963ba0a4264b4756088dd0f4 (patch)
tree908d4029e181694478c80ea53b4eefc11e30b517 /sys/netgraph
parenta23e18ea545675aca7551ef2395f6df40a3acb29 (diff)
Diffstat (limited to 'sys/netgraph')
-rw-r--r--sys/netgraph/ng_sppp.c411
-rw-r--r--sys/netgraph/ng_sppp.h39
2 files changed, 0 insertions, 450 deletions
diff --git a/sys/netgraph/ng_sppp.c b/sys/netgraph/ng_sppp.c
deleted file mode 100644
index 78e205e0d715..000000000000
--- a/sys/netgraph/ng_sppp.c
+++ /dev/null
@@ -1,411 +0,0 @@
-/*
- * ng_sppp.c Netgraph to Sppp module.
- */
-
-/*-
- * Copyright (C) 2002-2004 Cronyx Engineering.
- * Copyright (C) 2002-2004 Roman Kurakin <rik@cronyx.ru>
- *
- * This software is distributed with NO WARRANTIES, not even the implied
- * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Authors grant any other persons or organisations a permission to use,
- * modify and redistribute this software in source and binary forms,
- * as long as this message is kept with the software, all derivative
- * works or modified versions.
- *
- * Cronyx Id: ng_sppp.c,v 1.1.2.10 2004/03/01 15:17:21 rik Exp $
- */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/errno.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/errno.h>
-#include <sys/sockio.h>
-#include <sys/socket.h>
-#include <sys/syslog.h>
-#include <sys/libkern.h>
-
-#include <net/if.h>
-#include <net/if_var.h>
-#include <net/if_types.h>
-#include <net/bpf.h>
-#include <net/if_sppp.h>
-
-#include <netinet/in.h>
-
-#include <netgraph/ng_message.h>
-#include <netgraph/netgraph.h>
-#include <netgraph/ng_parse.h>
-#include <netgraph/ng_sppp.h>
-
-#ifdef NG_SEPARATE_MALLOC
-static MALLOC_DEFINE(M_NETGRAPH_SPPP, "netgraph_sppp", "netgraph sppp node");
-#else
-#define M_NETGRAPH_SPPP M_NETGRAPH
-#endif
-
-/* Node private data */
-struct ng_sppp_private {
- struct ifnet *ifp; /* Our interface */
- int unit; /* Interface unit number */
- node_p node; /* Our netgraph node */
- hook_p hook; /* Hook */
-};
-typedef struct ng_sppp_private *priv_p;
-
-/* Interface methods */
-static void ng_sppp_start (struct ifnet *ifp);
-static int ng_sppp_ioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
-
-/* Netgraph methods */
-static ng_constructor_t ng_sppp_constructor;
-static ng_rcvmsg_t ng_sppp_rcvmsg;
-static ng_shutdown_t ng_sppp_shutdown;
-static ng_newhook_t ng_sppp_newhook;
-static ng_rcvdata_t ng_sppp_rcvdata;
-static ng_disconnect_t ng_sppp_disconnect;
-
-/* List of commands and how to convert arguments to/from ASCII */
-static const struct ng_cmdlist ng_sppp_cmds[] = {
- {
- NGM_SPPP_COOKIE,
- NGM_SPPP_GET_IFNAME,
- "getifname",
- NULL,
- &ng_parse_string_type
- },
- { 0 }
-};
-
-/* Node type descriptor */
-static struct ng_type typestruct = {
- .version = NG_ABI_VERSION,
- .name = NG_SPPP_NODE_TYPE,
- .constructor = ng_sppp_constructor,
- .rcvmsg = ng_sppp_rcvmsg,
- .shutdown = ng_sppp_shutdown,
- .newhook = ng_sppp_newhook,
- .rcvdata = ng_sppp_rcvdata,
- .disconnect = ng_sppp_disconnect,
- .cmdlist = ng_sppp_cmds,
-};
-NETGRAPH_INIT(sppp, &typestruct);
-
-MODULE_DEPEND (ng_sppp, sppp, 1, 1, 1);
-
-/* We keep a bitmap indicating which unit numbers are free.
- Zero means the unit number is free, one means it's taken. */
-static unsigned char *ng_sppp_units = NULL;
-static unsigned char ng_sppp_units_len = 0;
-static unsigned char ng_units_in_use = 0;
-
-/*
- * Find the first free unit number for a new interface.
- * Increase the size of the unit bitmap as necessary.
- */
-static __inline void
-ng_sppp_get_unit (int *unit)
-{
- int index, bit;
- unsigned char mask;
-
- for (index = 0; index < ng_sppp_units_len
- && ng_sppp_units[index] == 0xFF; index++);
- if (index == ng_sppp_units_len) { /* extend array */
- unsigned char *newarray;
- int newlen;
-
- newlen = (2 * ng_sppp_units_len) + sizeof (*ng_sppp_units);
- newarray = malloc (newlen * sizeof (*ng_sppp_units),
- M_NETGRAPH_SPPP, M_WAITOK);
- bcopy (ng_sppp_units, newarray,
- ng_sppp_units_len * sizeof (*ng_sppp_units));
- bzero (newarray + ng_sppp_units_len,
- newlen - ng_sppp_units_len);
- if (ng_sppp_units != NULL)
- free (ng_sppp_units, M_NETGRAPH_SPPP);
- ng_sppp_units = newarray;
- ng_sppp_units_len = newlen;
- }
- mask = ng_sppp_units[index];
- for (bit = 0; (mask & 1) != 0; bit++)
- mask >>= 1;
- KASSERT ((bit >= 0 && bit < NBBY),
- ("%s: word=%d bit=%d", __func__, ng_sppp_units[index], bit));
- ng_sppp_units[index] |= (1 << bit);
- *unit = (index * NBBY) + bit;
- ng_units_in_use++;
-}
-
-/*
- * Free a no longer needed unit number.
- */
-static __inline void
-ng_sppp_free_unit (int unit)
-{
- int index, bit;
-
- index = unit / NBBY;
- bit = unit % NBBY;
- KASSERT (index < ng_sppp_units_len,
- ("%s: unit=%d len=%d", __func__, unit, ng_sppp_units_len));
- KASSERT ((ng_sppp_units[index] & (1 << bit)) != 0,
- ("%s: unit=%d is free", __func__, unit));
- ng_sppp_units[index] &= ~(1 << bit);
-
- ng_units_in_use--;
- if (ng_units_in_use == 0) {
- free (ng_sppp_units, M_NETGRAPH_SPPP);
- ng_sppp_units_len = 0;
- ng_sppp_units = NULL;
- }
-}
-
-/************************************************************************
- INTERFACE STUFF
- ************************************************************************/
-
-/*
- * Process an ioctl for the interface
- */
-static int
-ng_sppp_ioctl (struct ifnet *ifp, u_long command, caddr_t data)
-{
- int error = 0;
-
- error = sppp_ioctl (ifp, command, data);
- if (error)
- return error;
-
- return error;
-}
-
-/*
- * This routine should never be called
- */
-
-static void
-ng_sppp_start (struct ifnet *ifp)
-{
- struct mbuf *m;
- int len, error = 0;
- priv_p priv = ifp->if_softc;
-
- /* Check interface flags */
- /*
- * This has side effects. It is not good idea to stop sending if we
- * are not UP. If we are not running we still want to send LCP term
- * packets.
- */
-/* if (!((ifp->if_flags & IFF_UP) && */
-/* (ifp->if_drv_flags & IFF_DRV_RUNNING))) { */
-/* return;*/
-/* }*/
-
- if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
- return;
-
- if (!priv->hook)
- return;
-
- ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-
- while ((m = sppp_dequeue (ifp)) != NULL) {
- BPF_MTAP (ifp, m);
- len = m->m_pkthdr.len;
-
- NG_SEND_DATA_ONLY (error, priv->hook, m);
-
- if (error) {
- ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
- return;
- }
- }
- ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-}
-
-/************************************************************************
- NETGRAPH NODE STUFF
- ************************************************************************/
-
-/*
- * Constructor for a node
- */
-static int
-ng_sppp_constructor (node_p node)
-{
- struct sppp *pp;
- struct ifnet *ifp;
- priv_p priv;
-
- /* Allocate node and interface private structures */
- priv = malloc(sizeof(*priv), M_NETGRAPH_SPPP, M_WAITOK | M_ZERO);
-
- ifp = if_alloc(IFT_PPP);
- if (ifp == NULL) {
- free (priv, M_NETGRAPH_SPPP);
- return (ENOSPC);
- }
- pp = IFP2SP(ifp);
-
- /* Link them together */
- ifp->if_softc = priv;
- priv->ifp = ifp;
-
- /* Get an interface unit number */
- ng_sppp_get_unit(&priv->unit);
-
- /* Link together node and private info */
- NG_NODE_SET_PRIVATE (node, priv);
- priv->node = node;
-
- /* Initialize interface structure */
- if_initname (SP2IFP(pp), NG_SPPP_IFACE_NAME, priv->unit);
- ifp->if_start = ng_sppp_start;
- ifp->if_ioctl = ng_sppp_ioctl;
- ifp->if_flags = (IFF_POINTOPOINT|IFF_MULTICAST);
-
- /* Give this node the same name as the interface (if possible) */
- if (ng_name_node(node, SP2IFP(pp)->if_xname) != 0)
- log (LOG_WARNING, "%s: can't acquire netgraph name\n",
- SP2IFP(pp)->if_xname);
-
- /* Attach the interface */
- sppp_attach (ifp);
- if_attach (ifp);
- bpfattach (ifp, DLT_NULL, sizeof(u_int32_t));
-
- /* Done */
- return (0);
-}
-
-/*
- * Give our ok for a hook to be added
- */
-static int
-ng_sppp_newhook (node_p node, hook_p hook, const char *name)
-{
- priv_p priv = NG_NODE_PRIVATE (node);
-
- if (strcmp (name, NG_SPPP_HOOK_DOWNSTREAM) != 0)
- return (EINVAL);
-
- if (priv->hook)
- return (EISCONN);
-
- priv->hook = hook;
- NG_HOOK_SET_PRIVATE (hook, priv);
-
- return (0);
-}
-
-/*
- * Receive a control message
- */
-static int
-ng_sppp_rcvmsg (node_p node, item_p item, hook_p lasthook)
-{
- const priv_p priv = NG_NODE_PRIVATE (node);
- struct ng_mesg *msg = NULL;
- struct ng_mesg *resp = NULL;
- struct sppp *const pp = IFP2SP(priv->ifp);
- int error = 0;
-
- NGI_GET_MSG (item, msg);
- switch (msg->header.typecookie) {
- case NGM_SPPP_COOKIE:
- switch (msg->header.cmd) {
- case NGM_SPPP_GET_IFNAME:
- NG_MKRESPONSE (resp, msg, IFNAMSIZ, M_NOWAIT);
- if (!resp) {
- error = ENOMEM;
- break;
- }
- strlcpy(resp->data, SP2IFP(pp)->if_xname, IFNAMSIZ);
- break;
-
- default:
- error = EINVAL;
- break;
- }
- break;
- default:
- error = EINVAL;
- break;
- }
- NG_RESPOND_MSG (error, node, item, resp);
- NG_FREE_MSG (msg);
- return (error);
-}
-
-/*
- * Recive data from a hook. Pass the packet to the correct input routine.
- */
-static int
-ng_sppp_rcvdata (hook_p hook, item_p item)
-{
- struct mbuf *m;
- const priv_p priv = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
- struct sppp *const pp = IFP2SP(priv->ifp);
-
- NGI_GET_M (item, m);
- NG_FREE_ITEM (item);
- /* Sanity checks */
- KASSERT (m->m_flags & M_PKTHDR, ("%s: not pkthdr", __func__));
- if ((SP2IFP(pp)->if_flags & IFF_UP) == 0) {
- NG_FREE_M (m);
- return (ENETDOWN);
- }
-
- /* Update interface stats */
- if_inc_counter(SP2IFP(pp), IFCOUNTER_IPACKETS, 1);
-
- /* Note receiving interface */
- m->m_pkthdr.rcvif = SP2IFP(pp);
-
- /* Berkeley packet filter */
- BPF_MTAP (SP2IFP(pp), m);
-
- /* Send packet */
- sppp_input (SP2IFP(pp), m);
- return 0;
-}
-
-/*
- * Shutdown and remove the node and its associated interface.
- */
-static int
-ng_sppp_shutdown (node_p node)
-{
- const priv_p priv = NG_NODE_PRIVATE(node);
- /* Detach from the packet filter list of interfaces. */
- bpfdetach (priv->ifp);
- sppp_detach (priv->ifp);
- if_detach (priv->ifp);
- if_free(priv->ifp);
- ng_sppp_free_unit (priv->unit);
- free (priv, M_NETGRAPH_SPPP);
- NG_NODE_SET_PRIVATE (node, NULL);
- NG_NODE_UNREF (node);
- return (0);
-}
-
-/*
- * Hook disconnection.
- */
-static int
-ng_sppp_disconnect (hook_p hook)
-{
- const priv_p priv = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
-
- if (priv)
- priv->hook = NULL;
-
- return (0);
-}
diff --git a/sys/netgraph/ng_sppp.h b/sys/netgraph/ng_sppp.h
deleted file mode 100644
index be1631e48f36..000000000000
--- a/sys/netgraph/ng_sppp.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * ng_sppp.h Netgraph to Sppp module.
- */
-
-/*-
- * Copyright (C) 2002-2004 Cronyx Engineering.
- * Copyright (C) 2002-2004 Roman Kurakin <rik@cronyx.ru>
- *
- * This software is distributed with NO WARRANTIES, not even the implied
- * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Authors grant any other persons or organisations a permission to use,
- * modify and redistribute this software in source and binary forms,
- * as long as this message is kept with the software, all derivative
- * works or modified versions.
- *
- * $FreeBSD$
- * Cronyx Id: ng_sppp.h,v 1.1.2.6 2004/03/01 15:17:21 rik Exp $
- */
-
-#ifndef _NETGRAPH_SPPP_H_
-#define _NETGRAPH_SPPP_H_
-
-/* Node type name and magic cookie */
-#define NG_SPPP_NODE_TYPE "sppp"
-#define NGM_SPPP_COOKIE 1040804655
-
-/* Interface base name */
-#define NG_SPPP_IFACE_NAME "sppp"
-
-/* My hook names */
-#define NG_SPPP_HOOK_DOWNSTREAM "downstream"
-
-/* Netgraph commands */
-enum {
- NGM_SPPP_GET_IFNAME = 1, /* returns struct ng_sppp_ifname */
-};
-
-#endif /* _NETGRAPH_SPPP_H_ */