c9a6ce500d
Enforce validity checks on connection ids Signed-off-by: Divy Le Ray <divy@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/*
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* Copyright (c) 2006-2007 Chelsio, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _CHELSIO_DEFS_H
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#define _CHELSIO_DEFS_H
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#include <linux/skbuff.h>
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#include <net/tcp.h>
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#include "t3cdev.h"
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#include "cxgb3_offload.h"
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#define VALIDATE_TID 1
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void *cxgb_alloc_mem(unsigned long size);
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void cxgb_free_mem(void *addr);
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void cxgb_neigh_update(struct neighbour *neigh);
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void cxgb_redirect(struct dst_entry *old, struct dst_entry *new);
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/*
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* Map an ATID or STID to their entries in the corresponding TID tables.
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*/
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static inline union active_open_entry *atid2entry(const struct tid_info *t,
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unsigned int atid)
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{
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return &t->atid_tab[atid - t->atid_base];
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}
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static inline union listen_entry *stid2entry(const struct tid_info *t,
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unsigned int stid)
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{
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return &t->stid_tab[stid - t->stid_base];
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}
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/*
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* Find the connection corresponding to a TID.
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*/
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static inline struct t3c_tid_entry *lookup_tid(const struct tid_info *t,
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unsigned int tid)
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{
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struct t3c_tid_entry *t3c_tid = tid < t->ntids ?
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&(t->tid_tab[tid]) : NULL;
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return (t3c_tid && t3c_tid->client) ? t3c_tid : NULL;
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}
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/*
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* Find the connection corresponding to a server TID.
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*/
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static inline struct t3c_tid_entry *lookup_stid(const struct tid_info *t,
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unsigned int tid)
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{
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union listen_entry *e;
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if (tid < t->stid_base || tid >= t->stid_base + t->nstids)
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return NULL;
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e = stid2entry(t, tid);
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if ((void *)e->next >= (void *)t->tid_tab &&
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(void *)e->next < (void *)&t->atid_tab[t->natids])
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return NULL;
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return &e->t3c_tid;
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}
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/*
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* Find the connection corresponding to an active-open TID.
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*/
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static inline struct t3c_tid_entry *lookup_atid(const struct tid_info *t,
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unsigned int tid)
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{
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union active_open_entry *e;
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if (tid < t->atid_base || tid >= t->atid_base + t->natids)
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return NULL;
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e = atid2entry(t, tid);
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if ((void *)e->next >= (void *)t->tid_tab &&
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(void *)e->next < (void *)&t->atid_tab[t->natids])
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return NULL;
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return &e->t3c_tid;
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}
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int process_rx(struct t3cdev *dev, struct sk_buff **skbs, int n);
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int attach_t3cdev(struct t3cdev *dev);
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void detach_t3cdev(struct t3cdev *dev);
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#endif
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