e3f3b68c6e
Since the data structures such as rings are shared in their entirety, those TAILQ pointers are shared as well. Meaning that, after a successful rte_ring creation, the tailq_next pointer of the last ring in the TAILQ will be updated with a pointer to a ring which may not be present in the address space of another process (i.e. a ring that may be host-local or guest-local, and not shared over IVSHMEM). Any successive ring create/lookup on the other side of IVSHMEM will result in trying to dereference an invalid pointer. This patchset fixes this problem by creating a default tailq entry that may be used by any data structure that chooses to use TAILQs. This default TAILQ entry will consist of a tailq_next/tailq_prev pointers, and an opaque pointer to arbitrary data. All TAILQ pointers from data structures themselves will be removed and replaced by those generic TAILQ entries, thus fixing the problem of potentially exposing local address space to shared structures. Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com> Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
49 lines
2.0 KiB
Makefile
49 lines
2.0 KiB
Makefile
# BSD LICENSE
|
|
#
|
|
# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# * 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.
|
|
# * Neither the name of Intel Corporation nor the names of its
|
|
# contributors may be used to endorse or promote products derived
|
|
# from this software without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
|
|
# OWNER 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.
|
|
|
|
include $(RTE_SDK)/mk/rte.vars.mk
|
|
|
|
# library name
|
|
LIB = librte_ring.a
|
|
|
|
CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR) -O3
|
|
|
|
# all source are stored in SRCS-y
|
|
SRCS-$(CONFIG_RTE_LIBRTE_RING) := rte_ring.c
|
|
|
|
# install includes
|
|
SYMLINK-$(CONFIG_RTE_LIBRTE_RING)-include := rte_ring.h
|
|
|
|
# this lib needs eal and rte_malloc
|
|
DEPDIRS-$(CONFIG_RTE_LIBRTE_RING) += lib/librte_eal lib/librte_malloc
|
|
|
|
include $(RTE_SDK)/mk/rte.lib.mk
|