$(eval $(call KernelPackage,crypto-misc))
-define KernelPackage/crypto-ocf
- TITLE:=OCF modules
- DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @!TARGET_uml +kmod-crypto-manager
- KCONFIG:= \
- CONFIG_OCF_OCF \
- CONFIG_OCF_CRYPTODEV \
- CONFIG_OCF_CRYPTOSOFT \
- CONFIG_OCF_FIPS=y \
- CONFIG_OCF_RANDOMHARVEST=y
- FILES:= \
- $(LINUX_DIR)/crypto/ocf/ocf.ko \
- $(LINUX_DIR)/crypto/ocf/cryptodev.ko \
- $(LINUX_DIR)/crypto/ocf/cryptosoft.ko
- AUTOLOAD:=$(call AutoLoad,09, \
- ocf \
- cryptodev \
- cryptosoft \
- )
- $(call AddDepends/crypto)
-endef
-
-$(eval $(call KernelPackage,crypto-ocf))
-
-
-define KernelPackage/crypto-ocf-hifn7751
- TITLE:=OCF support for Hifn 6500/7751/7811/795x, Invertex AEON and NetSec 7751 devices
- DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @PCI_SUPPORT @!TARGET_uml kmod-crypto-ocf
- KCONFIG:=CONFIG_OCF_HIFN
- FILES:=$(LINUX_DIR)/crypto/ocf/hifn/hifn7751.ko
- AUTOLOAD:=$(call AutoLoad,10,hifn7751)
- $(call AddDepends/crypto)
-endef
-
-$(eval $(call KernelPackage,crypto-ocf-hifn7751))
-
-
-define KernelPackage/crypto-ocf-hifnhipp
- TITLE:=OCF support for Hifn 7855/8155 devices
- DEPENDS:=+@OPENSSL_ENGINE_CRYPTO @PCI_SUPPORT @!TARGET_uml kmod-crypto-ocf
- KCONFIG:=CONFIG_OCF_HIFNHIPP
- FILES:=$(LINUX_DIR)/crypto/ocf/hifn/hifnHIPP.ko
- AUTOLOAD:=$(call AutoLoad,10,hifnHIPP)
- $(call AddDepends/crypto)
-endef
-
-$(eval $(call KernelPackage,crypto-ocf-hifnhipp))
-
-
define KernelPackage/crypto-null
TITLE:=Null CryptoAPI module
KCONFIG:=CONFIG_CRYPTO_NULL
define Profile/WGT634U
NAME:=Netgear WGT634U
- PACKAGES:=kmod-b44 kmod-ath5k kmod-usb-core kmod-usb2 kmod-ocf-ubsec-ssb
+ PACKAGES:=kmod-b44 kmod-ath5k kmod-usb-core kmod-usb2
endef
define Profile/WGT634U/Description
define Profile/WRT350Nv1
NAME:=Linksys WRT350Nv1
- PACKAGES:=kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-tg3 kmod-ocf-ubsec-ssb
+ PACKAGES:=kmod-usb-core kmod-usb-ohci kmod-usb2 kmod-tg3
endef
define Profile/WRT350Nv1/Description
define Profile/WGT634U
NAME:=Netgear WGT634U
- PACKAGES:=kmod-ath5k kmod-usb-core kmod-usb2 kmod-ocf-ubsec-ssb
+ PACKAGES:=kmod-ath5k kmod-usb-core kmod-usb2
endef
define Profile/WGT634U/Description
# See /LICENSE for more information.
#
-define KernelPackage/ocf-ubsec-ssb
- TITLE:=BCM5365P IPSec Core driver
- DEPENDS:=@TARGET_brcm47xx @!TARGET_brcm47xx_mips74k +kmod-crypto-ocf
- KCONFIG:=CONFIG_OCF_UBSEC_SSB
- FILES:=$(LINUX_DIR)/crypto/ocf/ubsec_ssb/ubsec_ssb.ko
- AUTOLOAD:=$(call AutoLoad,10,ubsec_ssb)
- $(call AddDepends/crypto)
-endef
-
-define KernelPackage/ocf-ubsec-ssb/description
- This package contains the OCF driver for the BCM5365p IPSec Core
-endef
-
-$(eval $(call KernelPackage,ocf-ubsec-ssb))
-
define KernelPackage/bgmac
TITLE:=Broadcom bgmac driver
KCONFIG:=CONFIG_BGMAC
# CONFIG_OABI_COMPAT is not set
# CONFIG_OBS600 is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_OCF_BENCH is not set
-# CONFIG_OCF_C7108 is not set
-# CONFIG_OCF_CRYPTOCTEON is not set
-# CONFIG_OCF_EP80579 is not set
-# CONFIG_OCF_HIFN is not set
-# CONFIG_OCF_HIFNHIPP is not set
-# CONFIG_OCF_IXP4XX is not set
-# CONFIG_OCF_KIRKWOOD is not set
-# CONFIG_OCF_OCF is not set
-# CONFIG_OCF_OCFNULL is not set
-# CONFIG_OCF_SAFE is not set
-# CONFIG_OCF_TALITOS is not set
-# CONFIG_OCF_UBSEC_SSB is not set
# CONFIG_OC_ETM is not set
# CONFIG_OF_SELFTEST is not set
# CONFIG_OMAP2_DSS_DEBUG is not set
# CONFIG_OABI_COMPAT is not set
# CONFIG_OBS600 is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_OCF_BENCH is not set
-# CONFIG_OCF_C7108 is not set
-# CONFIG_OCF_CRYPTOCTEON is not set
-# CONFIG_OCF_EP80579 is not set
-# CONFIG_OCF_HIFN is not set
-# CONFIG_OCF_HIFNHIPP is not set
-# CONFIG_OCF_IXP4XX is not set
-# CONFIG_OCF_KIRKWOOD is not set
-# CONFIG_OCF_OCF is not set
-# CONFIG_OCF_OCFNULL is not set
-# CONFIG_OCF_SAFE is not set
-# CONFIG_OCF_TALITOS is not set
-# CONFIG_OCF_UBSEC_SSB is not set
# CONFIG_OC_ETM is not set
# CONFIG_OF_OVERLAY is not set
# CONFIG_OF_SELFTEST is not set
# CONFIG_OABI_COMPAT is not set
# CONFIG_OBS600 is not set
# CONFIG_OCFS2_FS is not set
-# CONFIG_OCF_BENCH is not set
-# CONFIG_OCF_C7108 is not set
-# CONFIG_OCF_CRYPTOCTEON is not set
-# CONFIG_OCF_EP80579 is not set
-# CONFIG_OCF_HIFN is not set
-# CONFIG_OCF_HIFNHIPP is not set
-# CONFIG_OCF_IXP4XX is not set
-# CONFIG_OCF_KIRKWOOD is not set
-# CONFIG_OCF_OCF is not set
-# CONFIG_OCF_OCFNULL is not set
-# CONFIG_OCF_SAFE is not set
-# CONFIG_OCF_TALITOS is not set
-# CONFIG_OCF_UBSEC_SSB is not set
# CONFIG_OF_OVERLAY is not set
# CONFIG_OF_UNITTEST is not set
# CONFIG_OMAP2_DSS_DEBUG is not set
+++ /dev/null
-#############################################################################
-
-mainmenu_option next_comment
-comment 'OCF Configuration'
-tristate 'OCF (Open Cryptograhic Framework)' CONFIG_OCF_OCF
-dep_mbool ' enable fips RNG checks (fips check on RNG data before use)' \
- CONFIG_OCF_FIPS $CONFIG_OCF_OCF
-dep_mbool ' enable harvesting entropy for /dev/random' \
- CONFIG_OCF_RANDOMHARVEST $CONFIG_OCF_OCF
-dep_tristate ' cryptodev (user space support)' \
- CONFIG_OCF_CRYPTODEV $CONFIG_OCF_OCF
-dep_tristate ' cryptosoft (software crypto engine)' \
- CONFIG_OCF_CRYPTOSOFT $CONFIG_OCF_OCF
-dep_tristate ' safenet (HW crypto engine)' \
- CONFIG_OCF_SAFE $CONFIG_OCF_OCF
-dep_tristate ' IXP4xx (HW crypto engine)' \
- CONFIG_OCF_IXP4XX $CONFIG_OCF_OCF
-dep_mbool ' Enable IXP4xx HW to perform SHA1 and MD5 hashing (very slow)' \
- CONFIG_OCF_IXP4XX_SHA1_MD5 $CONFIG_OCF_IXP4XX
-dep_tristate ' hifn (HW crypto engine)' \
- CONFIG_OCF_HIFN $CONFIG_OCF_OCF
-dep_tristate ' talitos (HW crypto engine)' \
- CONFIG_OCF_TALITOS $CONFIG_OCF_OCF
-dep_tristate ' pasemi (HW crypto engine)' \
- CONFIG_OCF_PASEMI $CONFIG_OCF_OCF
-dep_tristate ' ep80579 (HW crypto engine)' \
- CONFIG_OCF_EP80579 $CONFIG_OCF_OCF
-dep_tristate ' Micronas c7108 (HW crypto engine)' \
- CONFIG_OCF_C7108 $CONFIG_OCF_OCF
-dep_tristate ' uBsec BCM5365 (HW crypto engine)'
- CONFIG_OCF_UBSEC_SSB $CONFIG_OCF_OCF
-dep_tristate ' ocfnull (does no crypto)' \
- CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF
-dep_tristate ' ocf-bench (HW crypto in-kernel benchmark)' \
- CONFIG_OCF_BENCH $CONFIG_OCF_OCF
-endmenu
-
-#############################################################################
+++ /dev/null
-menu "OCF Configuration"
-
-config OCF_OCF
- tristate "OCF (Open Cryptograhic Framework)"
- help
- A linux port of the OpenBSD/FreeBSD crypto framework.
-
-config OCF_RANDOMHARVEST
- bool "crypto random --- harvest entropy for /dev/random"
- depends on OCF_OCF
- help
- Includes code to harvest random numbers from devices that support it.
-
-config OCF_FIPS
- bool "enable fips RNG checks"
- depends on OCF_OCF && OCF_RANDOMHARVEST
- help
- Run all RNG provided data through a fips check before
- adding it /dev/random's entropy pool.
-
-config OCF_CRYPTODEV
- tristate "cryptodev (user space support)"
- depends on OCF_OCF
- help
- The user space API to access crypto hardware.
-
-config OCF_CRYPTOSOFT
- tristate "cryptosoft (software crypto engine)"
- depends on OCF_OCF
- select CRYPTO
- select CRYPTO_HASH
- select CRYPTO_BLKCIPHER
- help
- A software driver for the OCF framework that uses
- the kernel CryptoAPI.
-
-config OCF_SAFE
- tristate "safenet (HW crypto engine)"
- depends on OCF_OCF
- help
- A driver for a number of the safenet Excel crypto accelerators.
- Currently tested and working on the 1141 and 1741.
-
-config OCF_IXP4XX
- tristate "IXP4xx (HW crypto engine)"
- depends on OCF_OCF
- help
- XScale IXP4xx crypto accelerator driver. Requires the
- Intel Access library.
-
-config OCF_IXP4XX_SHA1_MD5
- bool "IXP4xx SHA1 and MD5 Hashing"
- depends on OCF_IXP4XX
- help
- Allows the IXP4xx crypto accelerator to perform SHA1 and MD5 hashing.
- Note: this is MUCH slower than using cryptosoft (software crypto engine).
-
-config OCF_HIFN
- tristate "hifn (HW crypto engine)"
- depends on OCF_OCF && PCI
- help
- OCF driver for various HIFN based crypto accelerators.
- (7951, 7955, 7956, 7751, 7811)
-
-config OCF_HIFNHIPP
- tristate "Hifn HIPP (HW packet crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for various HIFN (HIPP) based crypto accelerators
- (7855)
-
-config OCF_TALITOS
- tristate "talitos (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for Freescale's security engine (SEC/talitos).
-
-config OCF_PASEMI
- tristate "pasemi (HW crypto engine)"
- depends on OCF_OCF && PPC_PASEMI
- help
- OCF driver for the PA Semi PWRficient DMA Engine
-
-config OCF_EP80579
- tristate "ep80579 (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for the Intel EP80579 Integrated Processor Product Line.
-
-config OCF_CRYPTOCTEON
- tristate "cryptocteon (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for the Cavium OCTEON Processors.
-
-config OCF_KIRKWOOD
- tristate "kirkwood (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for the Marvell Kirkwood (88F6xxx) Processors.
-
-config OCF_C7108
- tristate "Micronas 7108 (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for the Microna 7108 Cipher processors.
-
-config OCF_UBSEC_SSB
- tristate "uBsec BCM5365 (HW crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for uBsec BCM5365 hardware crypto accelerator.
-
-config OCF_OCFNULL
- tristate "ocfnull (fake crypto engine)"
- depends on OCF_OCF
- help
- OCF driver for measuring ipsec overheads (does no crypto)
-
-config OCF_BENCH
- tristate "ocf-bench (HW crypto in-kernel benchmark)"
- depends on OCF_OCF
- help
- A very simple encryption test for the in-kernel interface
- of OCF. Also includes code to benchmark the IXP Access library
- for comparison.
-
-endmenu
+++ /dev/null
-# for SGlinux builds
--include $(ROOTDIR)/modules/.config
-
-OCF_OBJS = crypto.o criov.o
-
-ifdef CONFIG_OCF_RANDOMHARVEST
- OCF_OBJS += random.o
-endif
-
-ifdef CONFIG_OCF_FIPS
- OCF_OBJS += rndtest.o
-endif
-
-# Add in autoconf.h to get #defines for CONFIG_xxx
-AUTOCONF_H=$(ROOTDIR)/modules/autoconf.h
-ifeq ($(AUTOCONF_H), $(wildcard $(AUTOCONF_H)))
- EXTRA_CFLAGS += -include $(AUTOCONF_H)
- export EXTRA_CFLAGS
-endif
-
-ifndef obj
- obj ?= .
- _obj = subdir
- mod-subdirs := safe hifn ixp4xx talitos ocfnull
- export-objs += crypto.o criov.o random.o
- list-multi += ocf.o
- _slash :=
-else
- _obj = obj
- _slash := /
-endif
-
-EXTRA_CFLAGS += -I$(obj)/.
-
-obj-$(CONFIG_OCF_OCF) += ocf.o
-obj-$(CONFIG_OCF_CRYPTODEV) += cryptodev.o
-obj-$(CONFIG_OCF_CRYPTOSOFT) += cryptosoft.o
-obj-$(CONFIG_OCF_BENCH) += ocf-bench.o
-
-$(_obj)-$(CONFIG_OCF_SAFE) += safe$(_slash)
-$(_obj)-$(CONFIG_OCF_HIFN) += hifn$(_slash)
-$(_obj)-$(CONFIG_OCF_IXP4XX) += ixp4xx$(_slash)
-$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash)
-$(_obj)-$(CONFIG_OCF_PASEMI) += pasemi$(_slash)
-$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash)
-$(_obj)-$(CONFIG_OCF_CRYPTOCTEON) += cryptocteon$(_slash)
-$(_obj)-$(CONFIG_OCF_KIRKWOOD) += kirkwood$(_slash)
-$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash)
-$(_obj)-$(CONFIG_OCF_C7108) += c7108$(_slash)
-$(_obj)-$(CONFIG_OCF_UBSEC_SSB) += ubsec_ssb$(_slash)
-
-ocf-objs := $(OCF_OBJS)
-
-dummy:
- @echo "Please consult the README for how to build OCF."
- @echo "If you can't wait then the following should do it:"
- @echo ""
- @echo " make ocf_modules"
- @echo " sudo make ocf_install"
- @echo ""
- @exit 1
-
-$(list-multi) dummy1: $(ocf-objs)
- $(LD) -r -o $@ $(ocf-objs)
-
-.PHONY:
-clean:
- rm -f *.o *.ko .*.o.flags .*.ko.cmd .*.o.cmd .*.mod.o.cmd *.mod.c
- rm -f */*.o */*.ko */.*.o.cmd */.*.ko.cmd */.*.mod.o.cmd */*.mod.c */.*.o.flags
- rm -f */modules.order */modules.builtin modules.order modules.builtin
-
-ifdef TOPDIR
--include $(TOPDIR)/Rules.make
-endif
-
-#
-# targets to build easily on the current machine
-#
-
-ocf_make:
- make -C /lib/modules/$(shell uname -r)/build M=`pwd` $(OCF_TARGET) CONFIG_OCF_OCF=m
- make -C /lib/modules/$(shell uname -r)/build M=`pwd` $(OCF_TARGET) CONFIG_OCF_OCF=m CONFIG_OCF_CRYPTOSOFT=m
- -make -C /lib/modules/$(shell uname -r)/build M=`pwd` $(OCF_TARGET) CONFIG_OCF_OCF=m CONFIG_OCF_BENCH=m
- -make -C /lib/modules/$(shell uname -r)/build M=`pwd` $(OCF_TARGET) CONFIG_OCF_OCF=m CONFIG_OCF_OCFNULL=m
- -make -C /lib/modules/$(shell uname -r)/build M=`pwd` $(OCF_TARGET) CONFIG_OCF_OCF=m CONFIG_OCF_HIFN=m
-
-ocf_modules:
- $(MAKE) ocf_make OCF_TARGET=modules
-
-ocf_install:
- $(MAKE) ocf_make OCF_TARGET="modules modules_install"
- depmod
- mkdir -p /usr/include/crypto
- cp cryptodev.h /usr/include/crypto/.
-
-#
-# generate full kernel patches for 2.4 and 2.6 kernels to make patching
-# your kernel easier
-#
-
-.PHONY: patch
-patch:
- patchbase=.; \
- [ -d $$patchbase/patches ] || patchbase=..; \
- patch=ocf-linux-base.patch; \
- patch24=ocf-linux-24.patch; \
- patch26=ocf-linux-26.patch; \
- patch3=ocf-linux-3.patch; \
- ( \
- find . -name Makefile; \
- find . -name Config.in; \
- find . -name Kconfig; \
- find . -name README; \
- find . -name '*.[ch]' | grep -v '.mod.c'; \
- ) | while read t; do \
- diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \
- done > $$patch; \
- cat $$patchbase/patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \
- cat $$patchbase/patches/linux-2.6.38-ocf.patch $$patch > $$patch26; \
- cat $$patchbase/patches/linux-3.2.1-ocf.patch $$patch > $$patch3; \
-
-
-#
-# this target probably does nothing for anyone but me - davidm
-#
-
-.PHONY: release
-release:
- REL=`date +%Y%m%d`; RELDIR=/tmp/ocf-linux-$$REL; \
- CURDIR=`pwd`; \
- rm -rf /tmp/ocf-linux-$$REL*; \
- mkdir -p $$RELDIR/ocf; \
- mkdir -p $$RELDIR/patches; \
- mkdir -p $$RELDIR/crypto-tools; \
- cp README* $$RELDIR/.; \
- cp patches/[!C]* $$RELDIR/patches/.; \
- cp tools/[!C]* $$RELDIR/crypto-tools/.; \
- cp -r [!C]* Config.in $$RELDIR/ocf/.; \
- rm -rf $$RELDIR/ocf/patches $$RELDIR/ocf/tools; \
- rm -f $$RELDIR/ocf/README*; \
- cp $$CURDIR/../../user/crypto-tools/[!C]* $$RELDIR/crypto-tools/.; \
- make -C $$RELDIR/crypto-tools clean; \
- make -C $$RELDIR/ocf clean; \
- find $$RELDIR/ocf -name CVS | xargs rm -rf; \
- cd $$RELDIR/..; \
- tar cvf ocf-linux-$$REL.tar ocf-linux-$$REL; \
- gzip -9n ocf-linux-$$REL.tar
-
+++ /dev/null
-# for SGlinux builds
--include $(ROOTDIR)/modules/.config
-
-obj-$(CONFIG_OCF_C7108) += aes-7108.o
-
-obj ?= .
-EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
-
-ifdef TOPDIR
--include $(TOPDIR)/Rules.make
-endif
-
+++ /dev/null
-/*
- * Copyright (C) 2006 Micronas USA
- *
- * 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 author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
- */
-
-//#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/crypto.h>
-#include <linux/mm.h>
-#include <linux/skbuff.h>
-#include <linux/random.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-//#include <asm/scatterlist.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-mapping.h>
-#include <linux/highmem.h>
-#include <cryptodev.h>
-#include <uio.h>
-#include <aes-7108.h>
-
-/* Runtime mode */
-static int c7108_crypto_mode = C7108_AES_CTRL_MODE_CTR;
-//static int c7108_crypto_mode = C7108_AES_CTRL_MODE_CBC;
-
-static int32_t c7108_id = -1;
-static struct cipher_7108 **c7108_sessions = NULL;
-static u_int32_t c7108_sesnum = 0;
-static unsigned long iobar;
-
-/* Crypto entry points */
-static int c7108_process(void *, struct cryptop *, int);
-static int c7108_newsession(void *, u_int32_t *, struct cryptoini *);
-static int c7108_freesession(void *, u_int64_t);
-
-/* Globals */
-static int debug = 0;
-static spinlock_t csr_mutex;
-
-/* Generic controller-based lock */
-#define AES_LOCK()\
- spin_lock(&csr_mutex)
-#define AES_UNLOCK()\
- spin_unlock(&csr_mutex)
-
-/* 7108 AES register access */
-#define c7108_reg_wr8(a,d) iowrite8(d, (void*)(iobar+(a)))
-#define c7108_reg_wr16(a,d) iowrite16(d, (void*)(iobar+(a)))
-#define c7108_reg_wr32(a,d) iowrite32(d, (void*)(iobar+(a)))
-#define c7108_reg_rd8(a) ioread8((void*)(iobar+(a)))
-#define c7108_reg_rd16(a) ioread16((void*)(iobar+(a)))
-#define c7108_reg_rd32(a) ioread32((void*)(iobar+(a)))
-
-static int
-c7108_xlate_key(int klen, u8* k8ptr, u32* k32ptr)
-{
- int i, nw=0;
- nw = ((klen >= 256) ? 8 : (klen >= 192) ? 6 : 4);
- for ( i = 0; i < nw; i++) {
- k32ptr[i] = (k8ptr[i+3] << 24) | (k8ptr[i+2] << 16) |
- (k8ptr[i+1] << 8) | k8ptr[i];
-
- }
- return 0;
-}
-
-static int
-c7108_cache_key(int klen, u32* k32ptr, u8* k8ptr)
-{
- int i, nb=0;
- u8* ptr = (u8*)k32ptr;
- nb = ((klen >= 256) ? 32 : (klen >= 192) ? 24 : 16);
- for ( i = 0; i < nb; i++)
- k8ptr[i] = ptr[i];
- return 0;
-}
-
-static int
-c7108_aes_setup_dma(u32 src, u32 dst, u32 len)
-{
- if (len < 16) {
- printk("len < 16\n");
- return -10;
- }
- if (len % 16) {
- printk("len not multiple of 16\n");
- return -11;
- }
- c7108_reg_wr16(C7108_AES_DMA_SRC0_LO, (u16) src);
- c7108_reg_wr16(C7108_AES_DMA_SRC0_HI, (u16)((src & 0xffff0000) >> 16));
- c7108_reg_wr16(C7108_AES_DMA_DST0_LO, (u16) dst);
- c7108_reg_wr16(C7108_AES_DMA_DST0_HI, (u16)((dst & 0xffff0000) >> 16));
- c7108_reg_wr16(C7108_AES_DMA_LEN, (u16) ((len / 16) - 1));
-
- return 0;
-}
-
-static int
-c7108_aes_set_hw_iv(u8 iv[16])
-{
- c7108_reg_wr16(C7108_AES_IV0_LO, (u16) ((iv[1] << 8) | iv[0]));
- c7108_reg_wr16(C7108_AES_IV0_HI, (u16) ((iv[3] << 8) | iv[2]));
- c7108_reg_wr16(C7108_AES_IV1_LO, (u16) ((iv[5] << 8) | iv[4]));
- c7108_reg_wr16(C7108_AES_IV1_HI, (u16) ((iv[7] << 8) | iv[6]));
- c7108_reg_wr16(C7108_AES_IV2_LO, (u16) ((iv[9] << 8) | iv[8]));
- c7108_reg_wr16(C7108_AES_IV2_HI, (u16) ((iv[11] << 8) | iv[10]));
- c7108_reg_wr16(C7108_AES_IV3_LO, (u16) ((iv[13] << 8) | iv[12]));
- c7108_reg_wr16(C7108_AES_IV3_HI, (u16) ((iv[15] << 8) | iv[14]));
-
- return 0;
-}
-
-static void
-c7108_aes_read_dkey(u32 * dkey)
-{
- dkey[0] = (c7108_reg_rd16(C7108_AES_EKEY0_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY0_LO);
- dkey[1] = (c7108_reg_rd16(C7108_AES_EKEY1_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY1_LO);
- dkey[2] = (c7108_reg_rd16(C7108_AES_EKEY2_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY2_LO);
- dkey[3] = (c7108_reg_rd16(C7108_AES_EKEY3_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY3_LO);
- dkey[4] = (c7108_reg_rd16(C7108_AES_EKEY4_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY4_LO);
- dkey[5] = (c7108_reg_rd16(C7108_AES_EKEY5_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY5_LO);
- dkey[6] = (c7108_reg_rd16(C7108_AES_EKEY6_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY6_LO);
- dkey[7] = (c7108_reg_rd16(C7108_AES_EKEY7_HI) << 16) |
- c7108_reg_rd16(C7108_AES_EKEY7_LO);
-}
-
-static int
-c7108_aes_cipher(int op,
- u32 dst,
- u32 src,
- u32 len,
- int klen,
- u16 mode,
- u32 key[8],
- u8 iv[16])
-{
- int rv = 0, cnt=0;
- u16 ctrl = 0, stat = 0;
-
- AES_LOCK();
-
- /* Setup key length */
- if (klen == 128) {
- ctrl |= C7108_AES_KEY_LEN_128;
- } else if (klen == 192) {
- ctrl |= C7108_AES_KEY_LEN_192;
- } else if (klen == 256) {
- ctrl |= C7108_AES_KEY_LEN_256;
- } else {
- AES_UNLOCK();
- return -3;
- }
-
- /* Check opcode */
- if (C7108_AES_ENCRYPT == op) {
- ctrl |= C7108_AES_ENCRYPT;
- } else if (C7108_AES_DECRYPT == op) {
- ctrl |= C7108_AES_DECRYPT;
- } else {
- AES_UNLOCK();
- return -4;
- }
-
- /* check mode */
- if ( (mode != C7108_AES_CTRL_MODE_CBC) &&
- (mode != C7108_AES_CTRL_MODE_CFB) &&
- (mode != C7108_AES_CTRL_MODE_OFB) &&
- (mode != C7108_AES_CTRL_MODE_CTR) &&
- (mode != C7108_AES_CTRL_MODE_ECB) ) {
- AES_UNLOCK();
- return -5;
- }
-
- /* Now set mode */
- ctrl |= mode;
-
- /* For CFB, OFB, and CTR, neither backward key
- * expansion nor key inversion is required.
- */
- if ( (C7108_AES_DECRYPT == op) &&
- (C7108_AES_CTRL_MODE_CBC == mode ||
- C7108_AES_CTRL_MODE_ECB == mode ) ){
-
- /* Program Key */
- c7108_reg_wr16(C7108_AES_KEY0_LO, (u16) key[4]);
- c7108_reg_wr16(C7108_AES_KEY0_HI, (u16) (key[4] >> 16));
- c7108_reg_wr16(C7108_AES_KEY1_LO, (u16) key[5]);
- c7108_reg_wr16(C7108_AES_KEY1_HI, (u16) (key[5] >> 16));
- c7108_reg_wr16(C7108_AES_KEY2_LO, (u16) key[6]);
- c7108_reg_wr16(C7108_AES_KEY2_HI, (u16) (key[6] >> 16));
- c7108_reg_wr16(C7108_AES_KEY3_LO, (u16) key[7]);
- c7108_reg_wr16(C7108_AES_KEY3_HI, (u16) (key[7] >> 16));
- c7108_reg_wr16(C7108_AES_KEY6_LO, (u16) key[2]);
- c7108_reg_wr16(C7108_AES_KEY6_HI, (u16) (key[2] >> 16));
- c7108_reg_wr16(C7108_AES_KEY7_LO, (u16) key[3]);
- c7108_reg_wr16(C7108_AES_KEY7_HI, (u16) (key[3] >> 16));
-
-
- if (192 == klen) {
- c7108_reg_wr16(C7108_AES_KEY4_LO, (u16) key[7]);
- c7108_reg_wr16(C7108_AES_KEY4_HI, (u16) (key[7] >> 16));
- c7108_reg_wr16(C7108_AES_KEY5_LO, (u16) key[7]);
- c7108_reg_wr16(C7108_AES_KEY5_HI, (u16) (key[7] >> 16));
-
- } else if (256 == klen) {
- /* 256 */
- c7108_reg_wr16(C7108_AES_KEY4_LO, (u16) key[0]);
- c7108_reg_wr16(C7108_AES_KEY4_HI, (u16) (key[0] >> 16));
- c7108_reg_wr16(C7108_AES_KEY5_LO, (u16) key[1]);
- c7108_reg_wr16(C7108_AES_KEY5_HI, (u16) (key[1] >> 16));
-
- }
-
- } else {
- /* Program Key */
- c7108_reg_wr16(C7108_AES_KEY0_LO, (u16) key[0]);
- c7108_reg_wr16(C7108_AES_KEY0_HI, (u16) (key[0] >> 16));
- c7108_reg_wr16(C7108_AES_KEY1_LO, (u16) key[1]);
- c7108_reg_wr16(C7108_AES_KEY1_HI, (u16) (key[1] >> 16));
- c7108_reg_wr16(C7108_AES_KEY2_LO, (u16) key[2]);
- c7108_reg_wr16(C7108_AES_KEY2_HI, (u16) (key[2] >> 16));
- c7108_reg_wr16(C7108_AES_KEY3_LO, (u16) key[3]);
- c7108_reg_wr16(C7108_AES_KEY3_HI, (u16) (key[3] >> 16));
- c7108_reg_wr16(C7108_AES_KEY4_LO, (u16) key[4]);
- c7108_reg_wr16(C7108_AES_KEY4_HI, (u16) (key[4] >> 16));
- c7108_reg_wr16(C7108_AES_KEY5_LO, (u16) key[5]);
- c7108_reg_wr16(C7108_AES_KEY5_HI, (u16) (key[5] >> 16));
- c7108_reg_wr16(C7108_AES_KEY6_LO, (u16) key[6]);
- c7108_reg_wr16(C7108_AES_KEY6_HI, (u16) (key[6] >> 16));
- c7108_reg_wr16(C7108_AES_KEY7_LO, (u16) key[7]);
- c7108_reg_wr16(C7108_AES_KEY7_HI, (u16) (key[7] >> 16));
-
- }
-
- /* Set IV always */
- c7108_aes_set_hw_iv(iv);
-
- /* Program DMA addresses */
- if ((rv = c7108_aes_setup_dma(src, dst, len)) < 0) {
- AES_UNLOCK();
- return rv;
- }
-
-
- /* Start AES cipher */
- c7108_reg_wr16(C7108_AES_CTRL, ctrl | C7108_AES_GO);
-
- //printk("Ctrl: 0x%x\n", ctrl | C7108_AES_GO);
- do {
- /* TODO: interrupt mode */
- // printk("aes_stat=0x%x\n", stat);
- //udelay(100);
- } while ((cnt++ < 1000000) &&
- !((stat=c7108_reg_rd16(C7108_AES_CTRL))&C7108_AES_OP_DONE));
-
-
- if ((mode == C7108_AES_CTRL_MODE_ECB)||
- (mode == C7108_AES_CTRL_MODE_CBC)) {
- /* Save out key when the lock is held ... */
- c7108_aes_read_dkey(key);
- }
-
- AES_UNLOCK();
- return 0;
-
-}
-
-/*
- * Generate a new crypto device session.
- */
-static int
-c7108_newsession(void *arg, u_int32_t *sid, struct cryptoini *cri)
-{
- struct cipher_7108 **swd;
- u_int32_t i;
- char *algo;
- int mode, xfm_type;
-
- dprintk("%s()\n", __FUNCTION__);
- if (sid == NULL || cri == NULL) {
- dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
- return EINVAL;
- }
-
- if (c7108_sessions) {
- for (i = 1; i < c7108_sesnum; i++)
- if (c7108_sessions[i] == NULL)
- break;
- } else
- i = 1; /* NB: to silence compiler warning */
-
- if (c7108_sessions == NULL || i == c7108_sesnum) {
- if (c7108_sessions == NULL) {
- i = 1; /* We leave c7108_sessions[0] empty */
- c7108_sesnum = CRYPTO_SW_SESSIONS;
- } else
- c7108_sesnum *= 2;
-
- swd = kmalloc(c7108_sesnum * sizeof(struct cipher_7108 *),
- GFP_ATOMIC);
- if (swd == NULL) {
- /* Reset session number */
- if (c7108_sesnum == CRYPTO_SW_SESSIONS)
- c7108_sesnum = 0;
- else
- c7108_sesnum /= 2;
- dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
- return ENOBUFS;
- }
- memset(swd, 0, c7108_sesnum * sizeof(struct cipher_7108 *));
-
- /* Copy existing sessions */
- if (c7108_sessions) {
- memcpy(swd, c7108_sessions,
- (c7108_sesnum / 2) * sizeof(struct cipher_7108 *));
- kfree(c7108_sessions);
- }
-
- c7108_sessions = swd;
-
- }
-
- swd = &c7108_sessions[i];
- *sid = i;
-
- while (cri) {
- *swd = (struct cipher_7108 *)
- kmalloc(sizeof(struct cipher_7108), GFP_ATOMIC);
- if (*swd == NULL) {
- c7108_freesession(NULL, i);
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- return ENOBUFS;
- }
- memset(*swd, 0, sizeof(struct cipher_7108));
-
- algo = NULL;
- mode = 0;
- xfm_type = HW_TYPE_CIPHER;
-
- switch (cri->cri_alg) {
-
- case CRYPTO_AES_CBC:
- algo = "aes";
- mode = CRYPTO_TFM_MODE_CBC;
- c7108_crypto_mode = C7108_AES_CTRL_MODE_CBC;
- break;
-#if 0
- case CRYPTO_AES_CTR:
- algo = "aes_ctr";
- mode = CRYPTO_TFM_MODE_CBC;
- c7108_crypto_mode = C7108_AES_CTRL_MODE_CTR;
- break;
- case CRYPTO_AES_ECB:
- algo = "aes_ecb";
- mode = CRYPTO_TFM_MODE_CBC;
- c7108_crypto_mode = C7108_AES_CTRL_MODE_ECB;
- break;
- case CRYPTO_AES_OFB:
- algo = "aes_ofb";
- mode = CRYPTO_TFM_MODE_CBC;
- c7108_crypto_mode = C7108_AES_CTRL_MODE_OFB;
- break;
- case CRYPTO_AES_CFB:
- algo = "aes_cfb";
- mode = CRYPTO_TFM_MODE_CBC;
- c7108_crypto_mode = C7108_AES_CTRL_MODE_CFB;
- break;
-#endif
- default:
- printk("unsupported crypto algorithm: %d\n",
- cri->cri_alg);
- return -EINVAL;
- break;
- }
-
-
- if (!algo || !*algo) {
- printk("cypher_7108_crypto: Unknown algo 0x%x\n",
- cri->cri_alg);
- c7108_freesession(NULL, i);
- return EINVAL;
- }
-
- if (xfm_type == HW_TYPE_CIPHER) {
- if (debug) {
- dprintk("%s key:", __FUNCTION__);
- for (i = 0; i < (cri->cri_klen + 7) / 8; i++)
- dprintk("%s0x%02x", (i % 8) ? " " : "\n ",
- cri->cri_key[i]);
- dprintk("\n");
- }
-
- } else if (xfm_type == SW_TYPE_HMAC ||
- xfm_type == SW_TYPE_HASH) {
- printk("cypher_7108_crypto: HMAC unsupported!\n");
- return -EINVAL;
- c7108_freesession(NULL, i);
- } else {
- printk("cypher_7108_crypto: "
- "Unhandled xfm_type %d\n", xfm_type);
- c7108_freesession(NULL, i);
- return EINVAL;
- }
-
- (*swd)->cri_alg = cri->cri_alg;
- (*swd)->xfm_type = xfm_type;
-
- cri = cri->cri_next;
- swd = &((*swd)->next);
- }
- return 0;
-}
-
-/*
- * Free a session.
- */
-static int
-c7108_freesession(void *arg, u_int64_t tid)
-{
- struct cipher_7108 *swd;
- u_int32_t sid = CRYPTO_SESID2LID(tid);
-
- dprintk("%s()\n", __FUNCTION__);
- if (sid > c7108_sesnum || c7108_sessions == NULL ||
- c7108_sessions[sid] == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- return(EINVAL);
- }
-
- /* Silently accept and return */
- if (sid == 0)
- return(0);
-
- while ((swd = c7108_sessions[sid]) != NULL) {
- c7108_sessions[sid] = swd->next;
- kfree(swd);
- }
- return 0;
-}
-
-/*
- * Process a hardware request.
- */
-static int
-c7108_process(void *arg, struct cryptop *crp, int hint)
-{
- struct cryptodesc *crd;
- struct cipher_7108 *sw;
- u_int32_t lid;
- int type;
- u32 hwkey[8];
-
-#define SCATTERLIST_MAX 16
- struct scatterlist sg[SCATTERLIST_MAX];
- int sg_num, sg_len, skip;
- struct sk_buff *skb = NULL;
- struct uio *uiop = NULL;
-
- dprintk("%s()\n", __FUNCTION__);
- /* Sanity check */
- if (crp == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- return EINVAL;
- }
-
- crp->crp_etype = 0;
-
- if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- crp->crp_etype = EINVAL;
- goto done;
- }
-
- lid = crp->crp_sid & 0xffffffff;
- if (lid >= c7108_sesnum || lid == 0 || c7108_sessions == NULL ||
- c7108_sessions[lid] == NULL) {
- crp->crp_etype = ENOENT;
- dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
- goto done;
- }
-
- /*
- * do some error checking outside of the loop for SKB and IOV
- * processing this leaves us with valid skb or uiop pointers
- * for later
- */
- if (crp->crp_flags & CRYPTO_F_SKBUF) {
- skb = (struct sk_buff *) crp->crp_buf;
- if (skb_shinfo(skb)->nr_frags >= SCATTERLIST_MAX) {
- printk("%s,%d: %d nr_frags > SCATTERLIST_MAX",
- __FILE__, __LINE__,
- skb_shinfo(skb)->nr_frags);
- goto done;
- }
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- uiop = (struct uio *) crp->crp_buf;
- if (uiop->uio_iovcnt > SCATTERLIST_MAX) {
- printk("%s,%d: %d uio_iovcnt > SCATTERLIST_MAX",
- __FILE__, __LINE__,
- uiop->uio_iovcnt);
- goto done;
- }
- }
-
- /* Go through crypto descriptors, processing as we go */
- for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
- /*
- * Find the crypto context.
- *
- * XXX Note that the logic here prevents us from having
- * XXX the same algorithm multiple times in a session
- * XXX (or rather, we can but it won't give us the right
- * XXX results). To do that, we'd need some way of differentiating
- * XXX between the various instances of an algorithm (so we can
- * XXX locate the correct crypto context).
- */
- for (sw = c7108_sessions[lid];
- sw && sw->cri_alg != crd->crd_alg;
- sw = sw->next)
- ;
-
- /* No such context ? */
- if (sw == NULL) {
- crp->crp_etype = EINVAL;
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- goto done;
- }
-
- skip = crd->crd_skip;
-
- /*
- * setup the SG list skip from the start of the buffer
- */
- memset(sg, 0, sizeof(sg));
- if (crp->crp_flags & CRYPTO_F_SKBUF) {
- int i, len;
- type = CRYPTO_BUF_SKBUF;
-
- sg_num = 0;
- sg_len = 0;
-
- if (skip < skb_headlen(skb)) {
- //sg[sg_num].page = virt_to_page(skb->data + skip);
- //sg[sg_num].offset = offset_in_page(skb->data + skip);
- len = skb_headlen(skb) - skip;
- if (len + sg_len > crd->crd_len)
- len = crd->crd_len - sg_len;
- //sg[sg_num].length = len;
- sg_set_page(&sg[sg_num], virt_to_page(skb->data + skip), len, offset_in_page(skb->data + skip));
- sg_len += sg[sg_num].length;
- sg_num++;
- skip = 0;
- } else
- skip -= skb_headlen(skb);
-
- for (i = 0; sg_len < crd->crd_len &&
- i < skb_shinfo(skb)->nr_frags &&
- sg_num < SCATTERLIST_MAX; i++) {
- if (skip < skb_shinfo(skb)->frags[i].size) {
- //sg[sg_num].page = skb_frag_page(&skb_shinfo(skb)->frags[i]);
- //sg[sg_num].offset = skb_shinfo(skb)->frags[i].page_offset + skip;
- len = skb_shinfo(skb)->frags[i].size - skip;
- if (len + sg_len > crd->crd_len)
- len = crd->crd_len - sg_len;
- //sg[sg_num].length = len;
- sg_set_page(&sg[sg_num], skb_frag_page(&skb_shinfo(skb)->frags[i]), len, skb_shinfo(skb)->frags[i].page_offset + skip);
- sg_len += sg[sg_num].length;
- sg_num++;
- skip = 0;
- } else
- skip -= skb_shinfo(skb)->frags[i].size;
- }
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- int len;
- type = CRYPTO_BUF_IOV;
- sg_len = 0;
- for (sg_num = 0; sg_len < crd->crd_len &&
- sg_num < uiop->uio_iovcnt &&
- sg_num < SCATTERLIST_MAX; sg_num++) {
- if (skip < uiop->uio_iov[sg_num].iov_len) {
- //sg[sg_num].page = virt_to_page(uiop->uio_iov[sg_num].iov_base+skip);
- //sg[sg_num].offset = offset_in_page(uiop->uio_iov[sg_num].iov_base+skip);
- len = uiop->uio_iov[sg_num].iov_len - skip;
- if (len + sg_len > crd->crd_len)
- len = crd->crd_len - sg_len;
- //sg[sg_num].length = len;
- sg_set_page(&sg[sg_num], virt_to_page(uiop->uio_iov[sg_num].iov_base+skip), len, offset_in_page(uiop->uio_iov[sg_num].iov_base+skip));
- sg_len += sg[sg_num].length;
- skip = 0;
- } else
- skip -= uiop->uio_iov[sg_num].iov_len;
- }
- } else {
- type = CRYPTO_BUF_CONTIG;
- //sg[0].page = virt_to_page(crp->crp_buf + skip);
- //sg[0].offset = offset_in_page(crp->crp_buf + skip);
- sg_len = (crp->crp_ilen - skip);
- if (sg_len > crd->crd_len)
- sg_len = crd->crd_len;
- //sg[0].length = sg_len;
- sg_set_page(&sg[0], virt_to_page(crp->crp_buf + skip), sg_len, offset_in_page(crp->crp_buf + skip));
- sg_num = 1;
- }
- if (sg_num > 0)
- sg_mark_end(&sg[sg_num-1]);
-
-
- switch (sw->xfm_type) {
-
- case HW_TYPE_CIPHER: {
-
- unsigned char iv[64];
- unsigned char *ivp = iv;
- int i;
- int ivsize = 16; /* fixed for AES */
- int blocksize = 16; /* fixed for AES */
-
- if (sg_len < blocksize) {
- crp->crp_etype = EINVAL;
- dprintk("%s,%d: EINVAL len %d < %d\n",
- __FILE__, __LINE__,
- sg_len,
- blocksize);
- goto done;
- }
-
- if (ivsize > sizeof(iv)) {
- crp->crp_etype = EINVAL;
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- goto done;
- }
-
- if (crd->crd_flags & CRD_F_ENCRYPT) { /* encrypt */
-
- if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
- ivp = crd->crd_iv;
- } else {
- get_random_bytes(ivp, ivsize);
- }
- /*
- * do we have to copy the IV back to the buffer ?
- */
- if ((crd->crd_flags & CRD_F_IV_PRESENT) == 0) {
- crypto_copyback(crp->crp_buf,
- crd->crd_inject,
- ivsize,
- (caddr_t)ivp);
- }
-
- c7108_xlate_key(crd->crd_klen,
- (u8*)crd->crd_key, (u32*)hwkey);
-
- /* Encrypt SG list */
- for (i = 0; i < sg_num; i++) {
- sg[i].dma_address =
- dma_map_single(NULL,
- kmap(sg_page(&sg[i])) + sg[i].offset, sg_len, DMA_BIDIRECTIONAL);
-#if 0
- printk("sg[%d]:0x%08x, off 0x%08x "
- "kmap 0x%08x phys 0x%08x\n",
- i, sg[i].page, sg[i].offset,
- kmap(sg[i].page) + sg[i].offset,
- sg[i].dma_address);
-#endif
- c7108_aes_cipher(C7108_AES_ENCRYPT,
- sg[i].dma_address,
- sg[i].dma_address,
- sg_len,
- crd->crd_klen,
- c7108_crypto_mode,
- hwkey,
- ivp);
-
- if ((c7108_crypto_mode == C7108_AES_CTRL_MODE_CBC)||
- (c7108_crypto_mode == C7108_AES_CTRL_MODE_ECB)) {
- /* Read back expanded key and cache it in key
- * context.
- * NOTE: for ECB/CBC modes only (not CTR, CFB, OFB)
- * where you set the key once.
- */
- c7108_cache_key(crd->crd_klen,
- (u32*)hwkey, (u8*)crd->crd_key);
-#if 0
- printk("%s expanded key:", __FUNCTION__);
- for (i = 0; i < (crd->crd_klen + 7) / 8; i++)
- printk("%s0x%02x", (i % 8) ? " " : "\n ",
- crd->crd_key[i]);
- printk("\n");
-#endif
- }
- }
- }
- else { /*decrypt */
-
- if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
- ivp = crd->crd_iv;
- } else {
- crypto_copydata(crp->crp_buf, crd->crd_inject,
- ivsize, (caddr_t)ivp);
- }
-
- c7108_xlate_key(crd->crd_klen,
- (u8*)crd->crd_key, (u32*)hwkey);
-
- /* Decrypt SG list */
- for (i = 0; i < sg_num; i++) {
- sg[i].dma_address =
- dma_map_single(NULL,
- kmap(sg_page(&sg[i])) + sg[i].offset,
- sg_len, DMA_BIDIRECTIONAL);
-
-#if 0
- printk("sg[%d]:0x%08x, off 0x%08x "
- "kmap 0x%08x phys 0x%08x\n",
- i, sg[i].page, sg[i].offset,
- kmap(sg[i].page) + sg[i].offset,
- sg[i].dma_address);
-#endif
- c7108_aes_cipher(C7108_AES_DECRYPT,
- sg[i].dma_address,
- sg[i].dma_address,
- sg_len,
- crd->crd_klen,
- c7108_crypto_mode,
- hwkey,
- ivp);
- }
- }
- } break;
- case SW_TYPE_HMAC:
- case SW_TYPE_HASH:
- crp->crp_etype = EINVAL;
- goto done;
- break;
-
- case SW_TYPE_COMP:
- crp->crp_etype = EINVAL;
- goto done;
- break;
-
- default:
- /* Unknown/unsupported algorithm */
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- crp->crp_etype = EINVAL;
- goto done;
- }
- }
-
-done:
- crypto_done(crp);
- return 0;
-}
-
-static struct {
- softc_device_decl sc_dev;
-} a7108dev;
-
-static device_method_t a7108_methods = {
-/* crypto device methods */
- DEVMETHOD(cryptodev_newsession, c7108_newsession),
- DEVMETHOD(cryptodev_freesession, c7108_freesession),
- DEVMETHOD(cryptodev_process, c7108_process),
- DEVMETHOD(cryptodev_kprocess, NULL)
-};
-
-static int
-cypher_7108_crypto_init(void)
-{
- dprintk("%s(%p)\n", __FUNCTION__, cypher_7108_crypto_init);
-
- iobar = (unsigned long)ioremap(CCU_AES_REG_BASE, 0x4000);
- printk("7108: AES @ 0x%08x (0x%08x phys) %s mode\n",
- iobar, CCU_AES_REG_BASE,
- c7108_crypto_mode & C7108_AES_CTRL_MODE_CBC ? "CBC" :
- c7108_crypto_mode & C7108_AES_CTRL_MODE_ECB ? "ECB" :
- c7108_crypto_mode & C7108_AES_CTRL_MODE_CTR ? "CTR" :
- c7108_crypto_mode & C7108_AES_CTRL_MODE_CFB ? "CFB" :
- c7108_crypto_mode & C7108_AES_CTRL_MODE_OFB ? "OFB" : "???");
- csr_mutex = SPIN_LOCK_UNLOCKED;
-
- memset(&a7108dev, 0, sizeof(a7108dev));
- softc_device_init(&a7108dev, "aes7108", 0, a7108_methods);
-
- c7108_id = crypto_get_driverid(softc_get_device(&a7108dev), CRYPTOCAP_F_HARDWARE);
- if (c7108_id < 0)
- panic("7108: crypto device cannot initialize!");
-
-// crypto_register(c7108_id, CRYPTO_AES_CBC, 0, 0, c7108_newsession, c7108_freesession, c7108_process, NULL);
- crypto_register(c7108_id, CRYPTO_AES_CBC, 0, 0);
-
- return(0);
-}
-
-static void
-cypher_7108_crypto_exit(void)
-{
- dprintk("%s()\n", __FUNCTION__);
- crypto_unregister_all(c7108_id);
- c7108_id = -1;
-}
-
-module_init(cypher_7108_crypto_init);
-module_exit(cypher_7108_crypto_exit);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION("Cypher 7108 Crypto (OCF module for kernel crypto)");
+++ /dev/null
-/*
- * Copyright (C) 2006 Micronas USA
- *
- * 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 author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
- */
-
-#ifndef __AES_7108_H__
-#define __AES_7108_H__
-
-/* Cypher 7108 AES Controller Hardware */
-#define CCU_REG_BASE 0x1b500000
-#define CCU_AES_REG_BASE (CCU_REG_BASE + 0x100)
-#define C7108_AES_KEY0_LO (0x0000)
-#define C7108_AES_KEY0_HI (0x0004)
-#define C7108_AES_KEY1_LO (0x0008)
-#define C7108_AES_KEY1_HI (0x000c)
-#define C7108_AES_KEY2_LO (0x0010)
-#define C7108_AES_KEY2_HI (0x0014)
-#define C7108_AES_KEY3_LO (0x0018)
-#define C7108_AES_KEY3_HI (0x001c)
-#define C7108_AES_KEY4_LO (0x0020)
-#define C7108_AES_KEY4_HI (0x0024)
-#define C7108_AES_KEY5_LO (0x0028)
-#define C7108_AES_KEY5_HI (0x002c)
-#define C7108_AES_KEY6_LO (0x0030)
-#define C7108_AES_KEY6_HI (0x0034)
-#define C7108_AES_KEY7_LO (0x0038)
-#define C7108_AES_KEY7_HI (0x003c)
-#define C7108_AES_IV0_LO (0x0040)
-#define C7108_AES_IV0_HI (0x0044)
-#define C7108_AES_IV1_LO (0x0048)
-#define C7108_AES_IV1_HI (0x004c)
-#define C7108_AES_IV2_LO (0x0050)
-#define C7108_AES_IV2_HI (0x0054)
-#define C7108_AES_IV3_LO (0x0058)
-#define C7108_AES_IV3_HI (0x005c)
-
-#define C7108_AES_DMA_SRC0_LO (0x0068) /* Bits 0:15 */
-#define C7108_AES_DMA_SRC0_HI (0x006c) /* Bits 27:16 */
-#define C7108_AES_DMA_DST0_LO (0x0070) /* Bits 0:15 */
-#define C7108_AES_DMA_DST0_HI (0x0074) /* Bits 27:16 */
-#define C7108_AES_DMA_LEN (0x0078) /*Bytes:(Count+1)x16 */
-
-/* AES/Copy engine control register */
-#define C7108_AES_CTRL (0x007c) /* AES control */
-#define C7108_AES_CTRL_RS (1<<0) /* Which set of src/dst to use */
-
-/* AES Cipher mode, controlled by setting Bits 2:0 */
-#define C7108_AES_CTRL_MODE_CBC 0
-#define C7108_AES_CTRL_MODE_CFB (1<<0)
-#define C7108_AES_CTRL_MODE_OFB (1<<1)
-#define C7108_AES_CTRL_MODE_CTR ((1<<0)|(1<<1))
-#define C7108_AES_CTRL_MODE_ECB (1<<2)
-
-/* AES Key length , Bits 5:4 */
-#define C7108_AES_KEY_LEN_128 0 /* 00 */
-#define C7108_AES_KEY_LEN_192 (1<<4) /* 01 */
-#define C7108_AES_KEY_LEN_256 (1<<5) /* 10 */
-
-/* AES Operation (crypt/decrypt), Bit 3 */
-#define C7108_AES_DECRYPT (1<<3) /* Clear for encrypt */
-#define C7108_AES_ENCRYPT 0
-#define C7108_AES_INTR (1<<13) /* Set on done trans from 0->1*/
-#define C7108_AES_GO (1<<14) /* Run */
-#define C7108_AES_OP_DONE (1<<15) /* Set when complete */
-
-
-/* Expanded key registers */
-#define C7108_AES_EKEY0_LO (0x0080)
-#define C7108_AES_EKEY0_HI (0x0084)
-#define C7108_AES_EKEY1_LO (0x0088)
-#define C7108_AES_EKEY1_HI (0x008c)
-#define C7108_AES_EKEY2_LO (0x0090)
-#define C7108_AES_EKEY2_HI (0x0094)
-#define C7108_AES_EKEY3_LO (0x0098)
-#define C7108_AES_EKEY3_HI (0x009c)
-#define C7108_AES_EKEY4_LO (0x00a0)
-#define C7108_AES_EKEY4_HI (0x00a4)
-#define C7108_AES_EKEY5_LO (0x00a8)
-#define C7108_AES_EKEY5_HI (0x00ac)
-#define C7108_AES_EKEY6_LO (0x00b0)
-#define C7108_AES_EKEY6_HI (0x00b4)
-#define C7108_AES_EKEY7_LO (0x00b8)
-#define C7108_AES_EKEY7_HI (0x00bc)
-#define C7108_AES_OK (0x00fc) /* Reset: "OK" */
-
-#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
-
-/* Software session entry */
-
-#define HW_TYPE_CIPHER 0
-#define SW_TYPE_HMAC 1
-#define SW_TYPE_AUTH2 2
-#define SW_TYPE_HASH 3
-#define SW_TYPE_COMP 4
-
-struct cipher_7108 {
- int xfm_type;
- int cri_alg;
- union {
- struct {
- char sw_key[HMAC_BLOCK_LEN];
- int sw_klen;
- int sw_authlen;
- } hmac;
- } u;
- struct cipher_7108 *next;
-};
-
-
-
-#endif /* __C7108_AES_7108_H__ */
+++ /dev/null
-/* $OpenBSD: criov.c,v 1.9 2002/01/29 15:48:29 jason Exp $ */
-
-/*
- * Linux port done by David McCullough <david_mccullough@mcafee.com>
- * Copyright (C) 2006-2010 David McCullough
- * Copyright (C) 2004-2005 Intel Corporation.
- * The license and original author are listed below.
- *
- * Copyright (c) 1999 Theo de Raadt
- *
- * 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 author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- *
-__FBSDID("$FreeBSD: src/sys/opencrypto/criov.c,v 1.5 2006/06/04 22:15:13 pjd Exp $");
- */
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
-#include <linux/config.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/uio.h>
-#include <linux/skbuff.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <asm/io.h>
-
-#include <uio.h>
-#include <cryptodev.h>
-
-/*
- * This macro is only for avoiding code duplication, as we need to skip
- * given number of bytes in the same way in three functions below.
- */
-#define CUIO_SKIP() do { \
- KASSERT(off >= 0, ("%s: off %d < 0", __func__, off)); \
- KASSERT(len >= 0, ("%s: len %d < 0", __func__, len)); \
- while (off > 0) { \
- KASSERT(iol >= 0, ("%s: empty in skip", __func__)); \
- if (off < iov->iov_len) \
- break; \
- off -= iov->iov_len; \
- iol--; \
- iov++; \
- } \
-} while (0)
-
-void
-cuio_copydata(struct uio* uio, int off, int len, caddr_t cp)
-{
- struct iovec *iov = uio->uio_iov;
- int iol = uio->uio_iovcnt;
- unsigned count;
-
- CUIO_SKIP();
- while (len > 0) {
- KASSERT(iol >= 0, ("%s: empty", __func__));
- count = min((int)(iov->iov_len - off), len);
- memcpy(cp, ((caddr_t)iov->iov_base) + off, count);
- len -= count;
- cp += count;
- off = 0;
- iol--;
- iov++;
- }
-}
-
-void
-cuio_copyback(struct uio* uio, int off, int len, caddr_t cp)
-{
- struct iovec *iov = uio->uio_iov;
- int iol = uio->uio_iovcnt;
- unsigned count;
-
- CUIO_SKIP();
- while (len > 0) {
- KASSERT(iol >= 0, ("%s: empty", __func__));
- count = min((int)(iov->iov_len - off), len);
- memcpy(((caddr_t)iov->iov_base) + off, cp, count);
- len -= count;
- cp += count;
- off = 0;
- iol--;
- iov++;
- }
-}
-
-/*
- * Return a pointer to iov/offset of location in iovec list.
- */
-struct iovec *
-cuio_getptr(struct uio *uio, int loc, int *off)
-{
- struct iovec *iov = uio->uio_iov;
- int iol = uio->uio_iovcnt;
-
- while (loc >= 0) {
- /* Normal end of search */
- if (loc < iov->iov_len) {
- *off = loc;
- return (iov);
- }
-
- loc -= iov->iov_len;
- if (iol == 0) {
- if (loc == 0) {
- /* Point at the end of valid data */
- *off = iov->iov_len;
- return (iov);
- } else
- return (NULL);
- } else {
- iov++, iol--;
- }
- }
-
- return (NULL);
-}
-
-EXPORT_SYMBOL(cuio_copyback);
-EXPORT_SYMBOL(cuio_copydata);
-EXPORT_SYMBOL(cuio_getptr);
-
-static void
-skb_copy_bits_back(struct sk_buff *skb, int offset, caddr_t cp, int len)
-{
- int i;
- if (offset < skb_headlen(skb)) {
- memcpy(skb->data + offset, cp, min_t(int, skb_headlen(skb), len));
- len -= skb_headlen(skb);
- cp += skb_headlen(skb);
- }
- offset -= skb_headlen(skb);
- for (i = 0; len > 0 && i < skb_shinfo(skb)->nr_frags; i++) {
- if (offset < skb_shinfo(skb)->frags[i].size) {
- memcpy(page_address(skb_frag_page(&skb_shinfo(skb)->frags[i])) +
- skb_shinfo(skb)->frags[i].page_offset,
- cp, min_t(int, skb_shinfo(skb)->frags[i].size, len));
- len -= skb_shinfo(skb)->frags[i].size;
- cp += skb_shinfo(skb)->frags[i].size;
- }
- offset -= skb_shinfo(skb)->frags[i].size;
- }
-}
-
-void
-crypto_copyback(int flags, caddr_t buf, int off, int size, caddr_t in)
-{
-
- if ((flags & CRYPTO_F_SKBUF) != 0)
- skb_copy_bits_back((struct sk_buff *)buf, off, in, size);
- else if ((flags & CRYPTO_F_IOV) != 0)
- cuio_copyback((struct uio *)buf, off, size, in);
- else
- bcopy(in, buf + off, size);
-}
-
-void
-crypto_copydata(int flags, caddr_t buf, int off, int size, caddr_t out)
-{
-
- if ((flags & CRYPTO_F_SKBUF) != 0)
- skb_copy_bits((struct sk_buff *)buf, off, out, size);
- else if ((flags & CRYPTO_F_IOV) != 0)
- cuio_copydata((struct uio *)buf, off, size, out);
- else
- bcopy(buf + off, out, size);
-}
-
-int
-crypto_apply(int flags, caddr_t buf, int off, int len,
- int (*f)(void *, void *, u_int), void *arg)
-{
-#if 0
- int error;
-
- if ((flags & CRYPTO_F_SKBUF) != 0)
- error = XXXXXX((struct mbuf *)buf, off, len, f, arg);
- else if ((flags & CRYPTO_F_IOV) != 0)
- error = cuio_apply((struct uio *)buf, off, len, f, arg);
- else
- error = (*f)(arg, buf + off, len);
- return (error);
-#else
- KASSERT(0, ("crypto_apply not implemented!\n"));
-#endif
- return 0;
-}
-
-EXPORT_SYMBOL(crypto_copyback);
-EXPORT_SYMBOL(crypto_copydata);
-EXPORT_SYMBOL(crypto_apply);
-
+++ /dev/null
-/*-
- * Linux port done by David McCullough <david_mccullough@mcafee.com>
- * Copyright (C) 2006-2010 David McCullough
- * Copyright (C) 2004-2005 Intel Corporation.
- * The license and original author are listed below.
- *
- * Redistribution and use in source and binary forms, with or without
- * Copyright (c) 2002-2006 Sam Leffler. All rights reserved.
- *
- * 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.
- */
-
-#if 0
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.27 2007/03/21 03:42:51 sam Exp $");
-#endif
-
-/*
- * Cryptographic Subsystem.
- *
- * This code is derived from the Openbsd Cryptographic Framework (OCF)
- * that has the copyright shown below. Very little of the original
- * code remains.
- */
-/*-
- * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
- *
- * This code was written by Angelos D. Keromytis in Athens, Greece, in
- * February 2000. Network Security Technologies Inc. (NSTI) kindly
- * supported the development of this code.
- *
- * Copyright (c) 2000, 2001 Angelos D. Keromytis
- *
- * Permission to use, copy, and modify this software with or without fee
- * is hereby granted, provided that this entire notice is included in
- * all source code copies of any software which is or includes a copy or
- * modification of this software.
- *
- * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
- * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
- * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
- * PURPOSE.
- *
-__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.16 2005/01/07 02:29:16 imp Exp $");
- */
-
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
-#include <linux/config.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,4)
-#include <linux/kthread.h>
-#endif
-#include <cryptodev.h>
-
-/*
- * keep track of whether or not we have been initialised, a big
- * issue if we are linked into the kernel and a driver gets started before
- * us
- */
-static int crypto_initted = 0;
-
-/*
- * Crypto drivers register themselves by allocating a slot in the
- * crypto_drivers table with crypto_get_driverid() and then registering
- * each algorithm they support with crypto_register() and crypto_kregister().
- */
-
-/*
- * lock on driver table
- * we track its state as spin_is_locked does not do anything on non-SMP boxes
- */
-static spinlock_t crypto_drivers_lock;
-static int crypto_drivers_locked; /* for non-SMP boxes */
-
-#define CRYPTO_DRIVER_LOCK() \
- ({ \
- spin_lock_irqsave(&crypto_drivers_lock, d_flags); \
- crypto_drivers_locked = 1; \
- dprintk("%s,%d: DRIVER_LOCK()\n", __FILE__, __LINE__); \
- })
-#define CRYPTO_DRIVER_UNLOCK() \
- ({ \
- dprintk("%s,%d: DRIVER_UNLOCK()\n", __FILE__, __LINE__); \
- crypto_drivers_locked = 0; \
- spin_unlock_irqrestore(&crypto_drivers_lock, d_flags); \
- })
-#define CRYPTO_DRIVER_ASSERT() \
- ({ \
- if (!crypto_drivers_locked) { \
- dprintk("%s,%d: DRIVER_ASSERT!\n", __FILE__, __LINE__); \
- } \
- })
-
-/*
- * Crypto device/driver capabilities structure.
- *
- * Synchronization:
- * (d) - protected by CRYPTO_DRIVER_LOCK()
- * (q) - protected by CRYPTO_Q_LOCK()
- * Not tagged fields are read-only.
- */
-struct cryptocap {
- device_t cc_dev; /* (d) device/driver */
- u_int32_t cc_sessions; /* (d) # of sessions */
- u_int32_t cc_koperations; /* (d) # os asym operations */
- /*
- * Largest possible operator length (in bits) for each type of
- * encryption algorithm. XXX not used
- */
- u_int16_t cc_max_op_len[CRYPTO_ALGORITHM_MAX + 1];
- u_int8_t cc_alg[CRYPTO_ALGORITHM_MAX + 1];
- u_int8_t cc_kalg[CRK_ALGORITHM_MAX + 1];
-
- int cc_flags; /* (d) flags */
-#define CRYPTOCAP_F_CLEANUP 0x80000000 /* needs resource cleanup */
- int cc_qblocked; /* (q) symmetric q blocked */
- int cc_kqblocked; /* (q) asymmetric q blocked */
-
- int cc_unqblocked; /* (q) symmetric q blocked */
- int cc_unkqblocked; /* (q) asymmetric q blocked */
-};
-static struct cryptocap *crypto_drivers = NULL;
-static int crypto_drivers_num = 0;
-
-/*
- * There are two queues for crypto requests; one for symmetric (e.g.
- * cipher) operations and one for asymmetric (e.g. MOD)operations.
- * A single mutex is used to lock access to both queues. We could
- * have one per-queue but having one simplifies handling of block/unblock
- * operations.
- */
-static LIST_HEAD(crp_q); /* crypto request queue */
-static LIST_HEAD(crp_kq); /* asym request queue */
-
-static spinlock_t crypto_q_lock;
-
-int crypto_all_qblocked = 0; /* protect with Q_LOCK */
-module_param(crypto_all_qblocked, int, 0444);
-MODULE_PARM_DESC(crypto_all_qblocked, "Are all crypto queues blocked");
-
-int crypto_all_kqblocked = 0; /* protect with Q_LOCK */
-module_param(crypto_all_kqblocked, int, 0444);
-MODULE_PARM_DESC(crypto_all_kqblocked, "Are all asym crypto queues blocked");
-
-#define CRYPTO_Q_LOCK() \
- ({ \
- spin_lock_irqsave(&crypto_q_lock, q_flags); \
- dprintk("%s,%d: Q_LOCK()\n", __FILE__, __LINE__); \
- })
-#define CRYPTO_Q_UNLOCK() \
- ({ \
- dprintk("%s,%d: Q_UNLOCK()\n", __FILE__, __LINE__); \
- spin_unlock_irqrestore(&crypto_q_lock, q_flags); \
- })
-
-/*
- * There are two queues for processing completed crypto requests; one
- * for the symmetric and one for the asymmetric ops. We only need one
- * but have two to avoid type futzing (cryptop vs. cryptkop). A single
- * mutex is used to lock access to both queues. Note that this lock
- * must be separate from the lock on request queues to insure driver
- * callbacks don't generate lock order reversals.
- */
-static LIST_HEAD(crp_ret_q); /* callback queues */
-static LIST_HEAD(crp_ret_kq);
-
-static spinlock_t crypto_ret_q_lock;
-#define CRYPTO_RETQ_LOCK() \
- ({ \
- spin_lock_irqsave(&crypto_ret_q_lock, r_flags); \
- dprintk("%s,%d: RETQ_LOCK\n", __FILE__, __LINE__); \
- })
-#define CRYPTO_RETQ_UNLOCK() \
- ({ \
- dprintk("%s,%d: RETQ_UNLOCK\n", __FILE__, __LINE__); \
- spin_unlock_irqrestore(&crypto_ret_q_lock, r_flags); \
- })
-#define CRYPTO_RETQ_EMPTY() (list_empty(&crp_ret_q) && list_empty(&crp_ret_kq))
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
-static kmem_cache_t *cryptop_zone;
-static kmem_cache_t *cryptodesc_zone;
-#else
-static struct kmem_cache *cryptop_zone;
-static struct kmem_cache *cryptodesc_zone;
-#endif
-
-#define debug crypto_debug
-int crypto_debug = 0;
-module_param(crypto_debug, int, 0644);
-MODULE_PARM_DESC(crypto_debug, "Enable debug");
-EXPORT_SYMBOL(crypto_debug);
-
-/*
- * Maximum number of outstanding crypto requests before we start
- * failing requests. We need this to prevent DOS when too many
- * requests are arriving for us to keep up. Otherwise we will
- * run the system out of memory. Since crypto is slow, we are
- * usually the bottleneck that needs to say, enough is enough.
- *
- * We cannot print errors when this condition occurs, we are already too
- * slow, printing anything will just kill us
- */
-
-static int crypto_q_cnt = 0;
-module_param(crypto_q_cnt, int, 0444);
-MODULE_PARM_DESC(crypto_q_cnt,
- "Current number of outstanding crypto requests");
-
-static int crypto_q_max = 1000;
-module_param(crypto_q_max, int, 0644);
-MODULE_PARM_DESC(crypto_q_max,
- "Maximum number of outstanding crypto requests");
-
-#define bootverbose crypto_verbose
-static int crypto_verbose = 0;
-module_param(crypto_verbose, int, 0644);
-MODULE_PARM_DESC(crypto_verbose,
- "Enable verbose crypto startup");
-
-int crypto_usercrypto = 1; /* userland may do crypto reqs */
-module_param(crypto_usercrypto, int, 0644);
-MODULE_PARM_DESC(crypto_usercrypto,
- "Enable/disable user-mode access to crypto support");
-
-int crypto_userasymcrypto = 1; /* userland may do asym crypto reqs */
-module_param(crypto_userasymcrypto, int, 0644);
-MODULE_PARM_DESC(crypto_userasymcrypto,
- "Enable/disable user-mode access to asymmetric crypto support");
-
-int crypto_devallowsoft = 0; /* only use hardware crypto */
-module_param(crypto_devallowsoft, int, 0644);
-MODULE_PARM_DESC(crypto_devallowsoft,
- "Enable/disable use of software crypto support");
-
-/*
- * This parameter controls the maximum number of crypto operations to
- * do consecutively in the crypto kernel thread before scheduling to allow
- * other processes to run. Without it, it is possible to get into a
- * situation where the crypto thread never allows any other processes to run.
- * Default to 1000 which should be less than one second.
- */
-static int crypto_max_loopcount = 1000;
-module_param(crypto_max_loopcount, int, 0644);
-MODULE_PARM_DESC(crypto_max_loopcount,
- "Maximum number of crypto ops to do before yielding to other processes");
-
-#ifndef CONFIG_NR_CPUS
-#define CONFIG_NR_CPUS 1
-#endif
-
-static struct task_struct *cryptoproc[CONFIG_NR_CPUS];
-static struct task_struct *cryptoretproc[CONFIG_NR_CPUS];
-static DECLARE_WAIT_QUEUE_HEAD(cryptoproc_wait);
-static DECLARE_WAIT_QUEUE_HEAD(cryptoretproc_wait);
-
-static int crypto_proc(void *arg);
-static int crypto_ret_proc(void *arg);
-static int crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint);
-static int crypto_kinvoke(struct cryptkop *krp, int flags);
-static void crypto_exit(void);
-static int crypto_init(void);
-
-static struct cryptostats cryptostats;
-
-static struct cryptocap *
-crypto_checkdriver(u_int32_t hid)
-{
- if (crypto_drivers == NULL)
- return NULL;
- return (hid >= crypto_drivers_num ? NULL : &crypto_drivers[hid]);
-}
-
-/*
- * Compare a driver's list of supported algorithms against another
- * list; return non-zero if all algorithms are supported.
- */
-static int
-driver_suitable(const struct cryptocap *cap, const struct cryptoini *cri)
-{
- const struct cryptoini *cr;
-
- /* See if all the algorithms are supported. */
- for (cr = cri; cr; cr = cr->cri_next)
- if (cap->cc_alg[cr->cri_alg] == 0)
- return 0;
- return 1;
-}
-
-
-/*
- * Select a driver for a new session that supports the specified
- * algorithms and, optionally, is constrained according to the flags.
- * The algorithm we use here is pretty stupid; just use the
- * first driver that supports all the algorithms we need. If there
- * are multiple drivers we choose the driver with the fewest active
- * sessions. We prefer hardware-backed drivers to software ones.
- *
- * XXX We need more smarts here (in real life too, but that's
- * XXX another story altogether).
- */
-static struct cryptocap *
-crypto_select_driver(const struct cryptoini *cri, int flags)
-{
- struct cryptocap *cap, *best;
- int match, hid;
-
- CRYPTO_DRIVER_ASSERT();
-
- /*
- * Look first for hardware crypto devices if permitted.
- */
- if (flags & CRYPTOCAP_F_HARDWARE)
- match = CRYPTOCAP_F_HARDWARE;
- else
- match = CRYPTOCAP_F_SOFTWARE;
- best = NULL;
-again:
- for (hid = 0; hid < crypto_drivers_num; hid++) {
- cap = &crypto_drivers[hid];
- /*
- * If it's not initialized, is in the process of
- * going away, or is not appropriate (hardware
- * or software based on match), then skip.
- */
- if (cap->cc_dev == NULL ||
- (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
- (cap->cc_flags & match) == 0)
- continue;
-
- /* verify all the algorithms are supported. */
- if (driver_suitable(cap, cri)) {
- if (best == NULL ||
- cap->cc_sessions < best->cc_sessions)
- best = cap;
- }
- }
- if (best != NULL)
- return best;
- if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
- /* sort of an Algol 68-style for loop */
- match = CRYPTOCAP_F_SOFTWARE;
- goto again;
- }
- return best;
-}
-
-/*
- * Create a new session. The crid argument specifies a crypto
- * driver to use or constraints on a driver to select (hardware
- * only, software only, either). Whatever driver is selected
- * must be capable of the requested crypto algorithms.
- */
-int
-crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int crid)
-{
- struct cryptocap *cap;
- u_int32_t hid, lid;
- int err;
- unsigned long d_flags;
-
- CRYPTO_DRIVER_LOCK();
- if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
- /*
- * Use specified driver; verify it is capable.
- */
- cap = crypto_checkdriver(crid);
- if (cap != NULL && !driver_suitable(cap, cri))
- cap = NULL;
- } else {
- /*
- * No requested driver; select based on crid flags.
- */
- cap = crypto_select_driver(cri, crid);
- /*
- * if NULL then can't do everything in one session.
- * XXX Fix this. We need to inject a "virtual" session
- * XXX layer right about here.
- */
- }
- if (cap != NULL) {
- /* Call the driver initialization routine. */
- hid = cap - crypto_drivers;
- lid = hid; /* Pass the driver ID. */
- cap->cc_sessions++;
- CRYPTO_DRIVER_UNLOCK();
- err = CRYPTODEV_NEWSESSION(cap->cc_dev, &lid, cri);
- CRYPTO_DRIVER_LOCK();
- if (err == 0) {
- (*sid) = (cap->cc_flags & 0xff000000)
- | (hid & 0x00ffffff);
- (*sid) <<= 32;
- (*sid) |= (lid & 0xffffffff);
- } else
- cap->cc_sessions--;
- } else
- err = EINVAL;
- CRYPTO_DRIVER_UNLOCK();
- return err;
-}
-
-static void
-crypto_remove(struct cryptocap *cap)
-{
- CRYPTO_DRIVER_ASSERT();
- if (cap->cc_sessions == 0 && cap->cc_koperations == 0)
- bzero(cap, sizeof(*cap));
-}
-
-/*
- * Delete an existing session (or a reserved session on an unregistered
- * driver).
- */
-int
-crypto_freesession(u_int64_t sid)
-{
- struct cryptocap *cap;
- u_int32_t hid;
- int err = 0;
- unsigned long d_flags;
-
- dprintk("%s()\n", __FUNCTION__);
- CRYPTO_DRIVER_LOCK();
-
- if (crypto_drivers == NULL) {
- err = EINVAL;
- goto done;
- }
-
- /* Determine two IDs. */
- hid = CRYPTO_SESID2HID(sid);
-
- if (hid >= crypto_drivers_num) {
- dprintk("%s - INVALID DRIVER NUM %d\n", __FUNCTION__, hid);
- err = ENOENT;
- goto done;
- }
- cap = &crypto_drivers[hid];
-
- if (cap->cc_dev) {
- CRYPTO_DRIVER_UNLOCK();
- /* Call the driver cleanup routine, if available, unlocked. */
- err = CRYPTODEV_FREESESSION(cap->cc_dev, sid);
- CRYPTO_DRIVER_LOCK();
- }
-
- if (cap->cc_sessions)
- cap->cc_sessions--;
-
- if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
- crypto_remove(cap);
-
-done:
- CRYPTO_DRIVER_UNLOCK();
- return err;
-}
-
-/*
- * Return an unused driver id. Used by drivers prior to registering
- * support for the algorithms they handle.
- */
-int32_t
-crypto_get_driverid(device_t dev, int flags)
-{
- struct cryptocap *newdrv;
- int i;
- unsigned long d_flags;
-
- if ((flags & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
- printf("%s: no flags specified when registering driver\n",
- device_get_nameunit(dev));
- return -1;
- }
-
- CRYPTO_DRIVER_LOCK();
-
- for (i = 0; i < crypto_drivers_num; i++) {
- if (crypto_drivers[i].cc_dev == NULL &&
- (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP) == 0) {
- break;
- }
- }
-
- /* Out of entries, allocate some more. */
- if (i == crypto_drivers_num) {
- /* Be careful about wrap-around. */
- if (2 * crypto_drivers_num <= crypto_drivers_num) {
- CRYPTO_DRIVER_UNLOCK();
- printk("crypto: driver count wraparound!\n");
- return -1;
- }
-
- newdrv = kmalloc(2 * crypto_drivers_num * sizeof(struct cryptocap),
- GFP_KERNEL);
- if (newdrv == NULL) {
- CRYPTO_DRIVER_UNLOCK();
- printk("crypto: no space to expand driver table!\n");
- return -1;
- }
-
- memcpy(newdrv, crypto_drivers,
- crypto_drivers_num * sizeof(struct cryptocap));
- memset(&newdrv[crypto_drivers_num], 0,
- crypto_drivers_num * sizeof(struct cryptocap));
-
- crypto_drivers_num *= 2;
-
- kfree(crypto_drivers);
- crypto_drivers = newdrv;
- }
-
- /* NB: state is zero'd on free */
- crypto_drivers[i].cc_sessions = 1; /* Mark */
- crypto_drivers[i].cc_dev = dev;
- crypto_drivers[i].cc_flags = flags;
- if (bootverbose)
- printf("crypto: assign %s driver id %u, flags %u\n",
- device_get_nameunit(dev), i, flags);
-
- CRYPTO_DRIVER_UNLOCK();
-
- return i;
-}
-
-/*
- * Lookup a driver by name. We match against the full device
- * name and unit, and against just the name. The latter gives
- * us a simple widlcarding by device name. On success return the
- * driver/hardware identifier; otherwise return -1.
- */
-int
-crypto_find_driver(const char *match)
-{
- int i, len = strlen(match);
- unsigned long d_flags;
-
- CRYPTO_DRIVER_LOCK();
- for (i = 0; i < crypto_drivers_num; i++) {
- device_t dev = crypto_drivers[i].cc_dev;
- if (dev == NULL ||
- (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP))
- continue;
- if (strncmp(match, device_get_nameunit(dev), len) == 0 ||
- strncmp(match, device_get_name(dev), len) == 0)
- break;
- }
- CRYPTO_DRIVER_UNLOCK();
- return i < crypto_drivers_num ? i : -1;
-}
-
-/*
- * Return the device_t for the specified driver or NULL
- * if the driver identifier is invalid.
- */
-device_t
-crypto_find_device_byhid(int hid)
-{
- struct cryptocap *cap = crypto_checkdriver(hid);
- return cap != NULL ? cap->cc_dev : NULL;
-}
-
-/*
- * Return the device/driver capabilities.
- */
-int
-crypto_getcaps(int hid)
-{
- struct cryptocap *cap = crypto_checkdriver(hid);
- return cap != NULL ? cap->cc_flags : 0;
-}
-
-/*
- * Register support for a key-related algorithm. This routine
- * is called once for each algorithm supported a driver.
- */
-int
-crypto_kregister(u_int32_t driverid, int kalg, u_int32_t flags)
-{
- struct cryptocap *cap;
- int err;
- unsigned long d_flags;
-
- dprintk("%s()\n", __FUNCTION__);
- CRYPTO_DRIVER_LOCK();
-
- cap = crypto_checkdriver(driverid);
- if (cap != NULL &&
- (CRK_ALGORITM_MIN <= kalg && kalg <= CRK_ALGORITHM_MAX)) {
- /*
- * XXX Do some performance testing to determine placing.
- * XXX We probably need an auxiliary data structure that
- * XXX describes relative performances.
- */
-
- cap->cc_kalg[kalg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
- if (bootverbose)
- printf("crypto: %s registers key alg %u flags %u\n"
- , device_get_nameunit(cap->cc_dev)
- , kalg
- , flags
- );
- err = 0;
- } else
- err = EINVAL;
-
- CRYPTO_DRIVER_UNLOCK();
- return err;
-}
-
-/*
- * Register support for a non-key-related algorithm. This routine
- * is called once for each such algorithm supported by a driver.
- */
-int
-crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen,
- u_int32_t flags)
-{
- struct cryptocap *cap;
- int err;
- unsigned long d_flags;
-
- dprintk("%s(id=0x%x, alg=%d, maxoplen=%d, flags=0x%x)\n", __FUNCTION__,
- driverid, alg, maxoplen, flags);
-
- CRYPTO_DRIVER_LOCK();
-
- cap = crypto_checkdriver(driverid);
- /* NB: algorithms are in the range [1..max] */
- if (cap != NULL &&
- (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX)) {
- /*
- * XXX Do some performance testing to determine placing.
- * XXX We probably need an auxiliary data structure that
- * XXX describes relative performances.
- */
-
- cap->cc_alg[alg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
- cap->cc_max_op_len[alg] = maxoplen;
- if (bootverbose)
- printf("crypto: %s registers alg %u flags %u maxoplen %u\n"
- , device_get_nameunit(cap->cc_dev)
- , alg
- , flags
- , maxoplen
- );
- cap->cc_sessions = 0; /* Unmark */
- err = 0;
- } else
- err = EINVAL;
-
- CRYPTO_DRIVER_UNLOCK();
- return err;
-}
-
-static void
-driver_finis(struct cryptocap *cap)
-{
- u_int32_t ses, kops;
-
- CRYPTO_DRIVER_ASSERT();
-
- ses = cap->cc_sessions;
- kops = cap->cc_koperations;
- bzero(cap, sizeof(*cap));
- if (ses != 0 || kops != 0) {
- /*
- * If there are pending sessions,
- * just mark as invalid.
- */
- cap->cc_flags |= CRYPTOCAP_F_CLEANUP;
- cap->cc_sessions = ses;
- cap->cc_koperations = kops;
- }
-}
-
-/*
- * Unregister a crypto driver. If there are pending sessions using it,
- * leave enough information around so that subsequent calls using those
- * sessions will correctly detect the driver has been unregistered and
- * reroute requests.
- */
-int
-crypto_unregister(u_int32_t driverid, int alg)
-{
- struct cryptocap *cap;
- int i, err;
- unsigned long d_flags;
-
- dprintk("%s()\n", __FUNCTION__);
- CRYPTO_DRIVER_LOCK();
-
- cap = crypto_checkdriver(driverid);
- if (cap != NULL &&
- (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX) &&
- cap->cc_alg[alg] != 0) {
- cap->cc_alg[alg] = 0;
- cap->cc_max_op_len[alg] = 0;
-
- /* Was this the last algorithm ? */
- for (i = 1; i <= CRYPTO_ALGORITHM_MAX; i++)
- if (cap->cc_alg[i] != 0)
- break;
-
- if (i == CRYPTO_ALGORITHM_MAX + 1)
- driver_finis(cap);
- err = 0;
- } else
- err = EINVAL;
- CRYPTO_DRIVER_UNLOCK();
- return err;
-}
-
-/*
- * Unregister all algorithms associated with a crypto driver.
- * If there are pending sessions using it, leave enough information
- * around so that subsequent calls using those sessions will
- * correctly detect the driver has been unregistered and reroute
- * requests.
- */
-int
-crypto_unregister_all(u_int32_t driverid)
-{
- struct cryptocap *cap;
- int err;
- unsigned long d_flags;
-
- dprintk("%s()\n", __FUNCTION__);
- CRYPTO_DRIVER_LOCK();
- cap = crypto_checkdriver(driverid);
- if (cap != NULL) {
- driver_finis(cap);
- err = 0;
- } else
- err = EINVAL;
- CRYPTO_DRIVER_UNLOCK();
-
- return err;
-}
-
-/*
- * Clear blockage on a driver. The what parameter indicates whether
- * the driver is now ready for cryptop's and/or cryptokop's.
- */
-int
-crypto_unblock(u_int32_t driverid, int what)
-{
- struct cryptocap *cap;
- int err;
- unsigned long q_flags;
-
- CRYPTO_Q_LOCK();
- cap = crypto_checkdriver(driverid);
- if (cap != NULL) {
- if (what & CRYPTO_SYMQ) {
- cap->cc_qblocked = 0;
- cap->cc_unqblocked = 0;
- crypto_all_qblocked = 0;
- }
- if (what & CRYPTO_ASYMQ) {
- cap->cc_kqblocked = 0;
- cap->cc_unkqblocked = 0;
- crypto_all_kqblocked = 0;
- }
- wake_up_interruptible(&cryptoproc_wait);
- err = 0;
- } else
- err = EINVAL;
- CRYPTO_Q_UNLOCK(); //DAVIDM should this be a driver lock
-
- return err;
-}
-
-/*
- * Add a crypto request to a queue, to be processed by the kernel thread.
- */
-int
-crypto_dispatch(struct cryptop *crp)
-{
- struct cryptocap *cap;
- int result = -1;
- unsigned long q_flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- cryptostats.cs_ops++;
-
- CRYPTO_Q_LOCK();
- if (crypto_q_cnt >= crypto_q_max) {
- cryptostats.cs_drops++;
- CRYPTO_Q_UNLOCK();
- return ENOMEM;
- }
- crypto_q_cnt++;
-
- /* make sure we are starting a fresh run on this crp. */
- crp->crp_flags &= ~CRYPTO_F_DONE;
- crp->crp_etype = 0;
-
- /*
- * Caller marked the request to be processed immediately; dispatch
- * it directly to the driver unless the driver is currently blocked.
- */
- if ((crp->crp_flags & CRYPTO_F_BATCH) == 0) {
- int hid = CRYPTO_SESID2HID(crp->crp_sid);
- cap = crypto_checkdriver(hid);
- /* Driver cannot disappear when there is an active session. */
- KASSERT(cap != NULL, ("%s: Driver disappeared.", __func__));
- if (!cap->cc_qblocked) {
- crypto_all_qblocked = 0;
- crypto_drivers[hid].cc_unqblocked = 1;
- CRYPTO_Q_UNLOCK();
- result = crypto_invoke(cap, crp, 0);
- CRYPTO_Q_LOCK();
- if (result == ERESTART)
- if (crypto_drivers[hid].cc_unqblocked)
- crypto_drivers[hid].cc_qblocked = 1;
- crypto_drivers[hid].cc_unqblocked = 0;
- }
- }
- if (result == ERESTART) {
- /*
- * The driver ran out of resources, mark the
- * driver ``blocked'' for cryptop's and put
- * the request back in the queue. It would
- * best to put the request back where we got
- * it but that's hard so for now we put it
- * at the front. This should be ok; putting
- * it at the end does not work.
- */
- list_add(&crp->crp_next, &crp_q);
- cryptostats.cs_blocks++;
- result = 0;
- } else if (result == -1) {
- TAILQ_INSERT_TAIL(&crp_q, crp, crp_next);
- result = 0;
- }
- wake_up_interruptible(&cryptoproc_wait);
- CRYPTO_Q_UNLOCK();
- return result;
-}
-
-/*
- * Add an asymetric crypto request to a queue,
- * to be processed by the kernel thread.
- */
-int
-crypto_kdispatch(struct cryptkop *krp)
-{
- int error;
- unsigned long q_flags;
-
- cryptostats.cs_kops++;
-
- error = crypto_kinvoke(krp, krp->krp_crid);
- if (error == ERESTART) {
- CRYPTO_Q_LOCK();
- TAILQ_INSERT_TAIL(&crp_kq, krp, krp_next);
- wake_up_interruptible(&cryptoproc_wait);
- CRYPTO_Q_UNLOCK();
- error = 0;
- }
- return error;
-}
-
-/*
- * Verify a driver is suitable for the specified operation.
- */
-static __inline int
-kdriver_suitable(const struct cryptocap *cap, const struct cryptkop *krp)
-{
- return (cap->cc_kalg[krp->krp_op] & CRYPTO_ALG_FLAG_SUPPORTED) != 0;
-}
-
-/*
- * Select a driver for an asym operation. The driver must
- * support the necessary algorithm. The caller can constrain
- * which device is selected with the flags parameter. The
- * algorithm we use here is pretty stupid; just use the first
- * driver that supports the algorithms we need. If there are
- * multiple suitable drivers we choose the driver with the
- * fewest active operations. We prefer hardware-backed
- * drivers to software ones when either may be used.
- */
-static struct cryptocap *
-crypto_select_kdriver(const struct cryptkop *krp, int flags)
-{
- struct cryptocap *cap, *best, *blocked;
- int match, hid;
-
- CRYPTO_DRIVER_ASSERT();
-
- /*
- * Look first for hardware crypto devices if permitted.
- */
- if (flags & CRYPTOCAP_F_HARDWARE)
- match = CRYPTOCAP_F_HARDWARE;
- else
- match = CRYPTOCAP_F_SOFTWARE;
- best = NULL;
- blocked = NULL;
-again:
- for (hid = 0; hid < crypto_drivers_num; hid++) {
- cap = &crypto_drivers[hid];
- /*
- * If it's not initialized, is in the process of
- * going away, or is not appropriate (hardware
- * or software based on match), then skip.
- */
- if (cap->cc_dev == NULL ||
- (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
- (cap->cc_flags & match) == 0)
- continue;
-
- /* verify all the algorithms are supported. */
- if (kdriver_suitable(cap, krp)) {
- if (best == NULL ||
- cap->cc_koperations < best->cc_koperations)
- best = cap;
- }
- }
- if (best != NULL)
- return best;
- if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
- /* sort of an Algol 68-style for loop */
- match = CRYPTOCAP_F_SOFTWARE;
- goto again;
- }
- return best;
-}
-
-/*
- * Dispatch an assymetric crypto request.
- */
-static int
-crypto_kinvoke(struct cryptkop *krp, int crid)
-{
- struct cryptocap *cap = NULL;
- int error;
- unsigned long d_flags;
-
- KASSERT(krp != NULL, ("%s: krp == NULL", __func__));
- KASSERT(krp->krp_callback != NULL,
- ("%s: krp->crp_callback == NULL", __func__));
-
- CRYPTO_DRIVER_LOCK();
- if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
- cap = crypto_checkdriver(crid);
- if (cap != NULL) {
- /*
- * Driver present, it must support the necessary
- * algorithm and, if s/w drivers are excluded,
- * it must be registered as hardware-backed.
- */
- if (!kdriver_suitable(cap, krp) ||
- (!crypto_devallowsoft &&
- (cap->cc_flags & CRYPTOCAP_F_HARDWARE) == 0))
- cap = NULL;
- }
- } else {
- /*
- * No requested driver; select based on crid flags.
- */
- if (!crypto_devallowsoft) /* NB: disallow s/w drivers */
- crid &= ~CRYPTOCAP_F_SOFTWARE;
- cap = crypto_select_kdriver(krp, crid);
- }
- if (cap != NULL && !cap->cc_kqblocked) {
- krp->krp_hid = cap - crypto_drivers;
- cap->cc_koperations++;
- CRYPTO_DRIVER_UNLOCK();
- error = CRYPTODEV_KPROCESS(cap->cc_dev, krp, 0);
- CRYPTO_DRIVER_LOCK();
- if (error == ERESTART) {
- cap->cc_koperations--;
- CRYPTO_DRIVER_UNLOCK();
- return (error);
- }
- /* return the actual device used */
- krp->krp_crid = krp->krp_hid;
- } else {
- /*
- * NB: cap is !NULL if device is blocked; in
- * that case return ERESTART so the operation
- * is resubmitted if possible.
- */
- error = (cap == NULL) ? ENODEV : ERESTART;
- }
- CRYPTO_DRIVER_UNLOCK();
-
- if (error) {
- krp->krp_status = error;
- crypto_kdone(krp);
- }
- return 0;
-}
-
-
-/*
- * Dispatch a crypto request to the appropriate crypto devices.
- */
-static int
-crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint)
-{
- KASSERT(crp != NULL, ("%s: crp == NULL", __func__));
- KASSERT(crp->crp_callback != NULL,
- ("%s: crp->crp_callback == NULL", __func__));
- KASSERT(crp->crp_desc != NULL, ("%s: crp->crp_desc == NULL", __func__));
-
- dprintk("%s()\n", __FUNCTION__);
-
-#ifdef CRYPTO_TIMING
- if (crypto_timing)
- crypto_tstat(&cryptostats.cs_invoke, &crp->crp_tstamp);
-#endif
- if (cap->cc_flags & CRYPTOCAP_F_CLEANUP) {
- struct cryptodesc *crd;
- u_int64_t nid;
-
- /*
- * Driver has unregistered; migrate the session and return
- * an error to the caller so they'll resubmit the op.
- *
- * XXX: What if there are more already queued requests for this
- * session?
- */
- crypto_freesession(crp->crp_sid);
-
- for (crd = crp->crp_desc; crd->crd_next; crd = crd->crd_next)
- crd->CRD_INI.cri_next = &(crd->crd_next->CRD_INI);
-
- /* XXX propagate flags from initial session? */
- if (crypto_newsession(&nid, &(crp->crp_desc->CRD_INI),
- CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE) == 0)
- crp->crp_sid = nid;
-
- crp->crp_etype = EAGAIN;
- crypto_done(crp);
- return 0;
- } else {
- /*
- * Invoke the driver to process the request.
- */
- return CRYPTODEV_PROCESS(cap->cc_dev, crp, hint);
- }
-}
-
-/*
- * Release a set of crypto descriptors.
- */
-void
-crypto_freereq(struct cryptop *crp)
-{
- struct cryptodesc *crd;
-
- if (crp == NULL)
- return;
-
-#ifdef DIAGNOSTIC
- {
- struct cryptop *crp2;
- unsigned long q_flags;
-
- CRYPTO_Q_LOCK();
- TAILQ_FOREACH(crp2, &crp_q, crp_next) {
- KASSERT(crp2 != crp,
- ("Freeing cryptop from the crypto queue (%p).",
- crp));
- }
- CRYPTO_Q_UNLOCK();
- CRYPTO_RETQ_LOCK();
- TAILQ_FOREACH(crp2, &crp_ret_q, crp_next) {
- KASSERT(crp2 != crp,
- ("Freeing cryptop from the return queue (%p).",
- crp));
- }
- CRYPTO_RETQ_UNLOCK();
- }
-#endif
-
- while ((crd = crp->crp_desc) != NULL) {
- crp->crp_desc = crd->crd_next;
- kmem_cache_free(cryptodesc_zone, crd);
- }
- kmem_cache_free(cryptop_zone, crp);
-}
-
-/*
- * Acquire a set of crypto descriptors.
- */
-struct cryptop *
-crypto_getreq(int num)
-{
- struct cryptodesc *crd;
- struct cryptop *crp;
-
- crp = kmem_cache_alloc(cryptop_zone, SLAB_ATOMIC);
- if (crp != NULL) {
- memset(crp, 0, sizeof(*crp));
- INIT_LIST_HEAD(&crp->crp_next);
- init_waitqueue_head(&crp->crp_waitq);
- while (num--) {
- crd = kmem_cache_alloc(cryptodesc_zone, SLAB_ATOMIC);
- if (crd == NULL) {
- crypto_freereq(crp);
- return NULL;
- }
- memset(crd, 0, sizeof(*crd));
- crd->crd_next = crp->crp_desc;
- crp->crp_desc = crd;
- }
- }
- return crp;
-}
-
-/*
- * Invoke the callback on behalf of the driver.
- */
-void
-crypto_done(struct cryptop *crp)
-{
- unsigned long q_flags;
-
- dprintk("%s()\n", __FUNCTION__);
- if ((crp->crp_flags & CRYPTO_F_DONE) == 0) {
- crp->crp_flags |= CRYPTO_F_DONE;
- CRYPTO_Q_LOCK();
- crypto_q_cnt--;
- CRYPTO_Q_UNLOCK();
- } else
- printk("crypto: crypto_done op already done, flags 0x%x",
- crp->crp_flags);
- if (crp->crp_etype != 0)
- cryptostats.cs_errs++;
- /*
- * CBIMM means unconditionally do the callback immediately;
- * CBIFSYNC means do the callback immediately only if the
- * operation was done synchronously. Both are used to avoid
- * doing extraneous context switches; the latter is mostly
- * used with the software crypto driver.
- */
- if ((crp->crp_flags & CRYPTO_F_CBIMM) ||
- ((crp->crp_flags & CRYPTO_F_CBIFSYNC) &&
- (CRYPTO_SESID2CAPS(crp->crp_sid) & CRYPTOCAP_F_SYNC))) {
- /*
- * Do the callback directly. This is ok when the
- * callback routine does very little (e.g. the
- * /dev/crypto callback method just does a wakeup).
- */
- crp->crp_callback(crp);
- } else {
- unsigned long r_flags;
- /*
- * Normal case; queue the callback for the thread.
- */
- CRYPTO_RETQ_LOCK();
- wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
- TAILQ_INSERT_TAIL(&crp_ret_q, crp, crp_next);
- CRYPTO_RETQ_UNLOCK();
- }
-}
-
-/*
- * Invoke the callback on behalf of the driver.
- */
-void
-crypto_kdone(struct cryptkop *krp)
-{
- struct cryptocap *cap;
- unsigned long d_flags;
-
- if ((krp->krp_flags & CRYPTO_KF_DONE) != 0)
- printk("crypto: crypto_kdone op already done, flags 0x%x",
- krp->krp_flags);
- krp->krp_flags |= CRYPTO_KF_DONE;
- if (krp->krp_status != 0)
- cryptostats.cs_kerrs++;
-
- CRYPTO_DRIVER_LOCK();
- /* XXX: What if driver is loaded in the meantime? */
- if (krp->krp_hid < crypto_drivers_num) {
- cap = &crypto_drivers[krp->krp_hid];
- cap->cc_koperations--;
- KASSERT(cap->cc_koperations >= 0, ("cc_koperations < 0"));
- if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
- crypto_remove(cap);
- }
- CRYPTO_DRIVER_UNLOCK();
-
- /*
- * CBIMM means unconditionally do the callback immediately;
- * This is used to avoid doing extraneous context switches
- */
- if ((krp->krp_flags & CRYPTO_KF_CBIMM)) {
- /*
- * Do the callback directly. This is ok when the
- * callback routine does very little (e.g. the
- * /dev/crypto callback method just does a wakeup).
- */
- krp->krp_callback(krp);
- } else {
- unsigned long r_flags;
- /*
- * Normal case; queue the callback for the thread.
- */
- CRYPTO_RETQ_LOCK();
- wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
- TAILQ_INSERT_TAIL(&crp_ret_kq, krp, krp_next);
- CRYPTO_RETQ_UNLOCK();
- }
-}
-
-int
-crypto_getfeat(int *featp)
-{
- int hid, kalg, feat = 0;
- unsigned long d_flags;
-
- CRYPTO_DRIVER_LOCK();
- for (hid = 0; hid < crypto_drivers_num; hid++) {
- const struct cryptocap *cap = &crypto_drivers[hid];
-
- if ((cap->cc_flags & CRYPTOCAP_F_SOFTWARE) &&
- !crypto_devallowsoft) {
- continue;
- }
- for (kalg = 0; kalg < CRK_ALGORITHM_MAX; kalg++)
- if (cap->cc_kalg[kalg] & CRYPTO_ALG_FLAG_SUPPORTED)
- feat |= 1 << kalg;
- }
- CRYPTO_DRIVER_UNLOCK();
- *featp = feat;
- return (0);
-}
-
-/*
- * Crypto thread, dispatches crypto requests.
- */
-static int
-crypto_proc(void *arg)
-{
- struct cryptop *crp, *submit;
- struct cryptkop *krp, *krpp;
- struct cryptocap *cap;
- u_int32_t hid;
- int result, hint;
- unsigned long q_flags;
- int loopcount = 0;
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- CRYPTO_Q_LOCK();
- for (;;) {
- /*
- * we need to make sure we don't get into a busy loop with nothing
- * to do, the two crypto_all_*blocked vars help us find out when
- * we are all full and can do nothing on any driver or Q. If so we
- * wait for an unblock.
- */
- crypto_all_qblocked = !list_empty(&crp_q);
-
- /*
- * Find the first element in the queue that can be
- * processed and look-ahead to see if multiple ops
- * are ready for the same driver.
- */
- submit = NULL;
- hint = 0;
- list_for_each_entry(crp, &crp_q, crp_next) {
- hid = CRYPTO_SESID2HID(crp->crp_sid);
- cap = crypto_checkdriver(hid);
- /*
- * Driver cannot disappear when there is an active
- * session.
- */
- KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
- __func__, __LINE__));
- if (cap == NULL || cap->cc_dev == NULL) {
- /* Op needs to be migrated, process it. */
- if (submit == NULL)
- submit = crp;
- break;
- }
- if (!cap->cc_qblocked) {
- if (submit != NULL) {
- /*
- * We stop on finding another op,
- * regardless whether its for the same
- * driver or not. We could keep
- * searching the queue but it might be
- * better to just use a per-driver
- * queue instead.
- */
- if (CRYPTO_SESID2HID(submit->crp_sid) == hid)
- hint = CRYPTO_HINT_MORE;
- break;
- } else {
- submit = crp;
- if ((submit->crp_flags & CRYPTO_F_BATCH) == 0)
- break;
- /* keep scanning for more are q'd */
- }
- }
- }
- if (submit != NULL) {
- hid = CRYPTO_SESID2HID(submit->crp_sid);
- crypto_all_qblocked = 0;
- list_del(&submit->crp_next);
- crypto_drivers[hid].cc_unqblocked = 1;
- cap = crypto_checkdriver(hid);
- CRYPTO_Q_UNLOCK();
- KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
- __func__, __LINE__));
- result = crypto_invoke(cap, submit, hint);
- CRYPTO_Q_LOCK();
- if (result == ERESTART) {
- /*
- * The driver ran out of resources, mark the
- * driver ``blocked'' for cryptop's and put
- * the request back in the queue. It would
- * best to put the request back where we got
- * it but that's hard so for now we put it
- * at the front. This should be ok; putting
- * it at the end does not work.
- */
- /* XXX validate sid again? */
- list_add(&submit->crp_next, &crp_q);
- cryptostats.cs_blocks++;
- if (crypto_drivers[hid].cc_unqblocked)
- crypto_drivers[hid].cc_qblocked=0;
- crypto_drivers[hid].cc_unqblocked=0;
- }
- crypto_drivers[hid].cc_unqblocked = 0;
- }
-
- crypto_all_kqblocked = !list_empty(&crp_kq);
-
- /* As above, but for key ops */
- krp = NULL;
- list_for_each_entry(krpp, &crp_kq, krp_next) {
- cap = crypto_checkdriver(krpp->krp_hid);
- if (cap == NULL || cap->cc_dev == NULL) {
- /*
- * Operation needs to be migrated, invalidate
- * the assigned device so it will reselect a
- * new one below. Propagate the original
- * crid selection flags if supplied.
- */
- krp->krp_hid = krp->krp_crid &
- (CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE);
- if (krp->krp_hid == 0)
- krp->krp_hid =
- CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE;
- break;
- }
- if (!cap->cc_kqblocked) {
- krp = krpp;
- break;
- }
- }
- if (krp != NULL) {
- crypto_all_kqblocked = 0;
- list_del(&krp->krp_next);
- crypto_drivers[krp->krp_hid].cc_kqblocked = 1;
- CRYPTO_Q_UNLOCK();
- result = crypto_kinvoke(krp, krp->krp_hid);
- CRYPTO_Q_LOCK();
- if (result == ERESTART) {
- /*
- * The driver ran out of resources, mark the
- * driver ``blocked'' for cryptkop's and put
- * the request back in the queue. It would
- * best to put the request back where we got
- * it but that's hard so for now we put it
- * at the front. This should be ok; putting
- * it at the end does not work.
- */
- /* XXX validate sid again? */
- list_add(&krp->krp_next, &crp_kq);
- cryptostats.cs_kblocks++;
- } else
- crypto_drivers[krp->krp_hid].cc_kqblocked = 0;
- }
-
- if (submit == NULL && krp == NULL) {
- /*
- * Nothing more to be processed. Sleep until we're
- * woken because there are more ops to process.
- * This happens either by submission or by a driver
- * becoming unblocked and notifying us through
- * crypto_unblock. Note that when we wakeup we
- * start processing each queue again from the
- * front. It's not clear that it's important to
- * preserve this ordering since ops may finish
- * out of order if dispatched to different devices
- * and some become blocked while others do not.
- */
- dprintk("%s - sleeping (qe=%d qb=%d kqe=%d kqb=%d)\n",
- __FUNCTION__,
- list_empty(&crp_q), crypto_all_qblocked,
- list_empty(&crp_kq), crypto_all_kqblocked);
- loopcount = 0;
- CRYPTO_Q_UNLOCK();
- wait_event_interruptible(cryptoproc_wait,
- !(list_empty(&crp_q) || crypto_all_qblocked) ||
- !(list_empty(&crp_kq) || crypto_all_kqblocked) ||
- kthread_should_stop());
- if (signal_pending (current)) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- spin_lock_irq(¤t->sigmask_lock);
-#endif
- flush_signals(current);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- spin_unlock_irq(¤t->sigmask_lock);
-#endif
- }
- CRYPTO_Q_LOCK();
- dprintk("%s - awake\n", __FUNCTION__);
- if (kthread_should_stop())
- break;
- cryptostats.cs_intrs++;
- } else if (loopcount > crypto_max_loopcount) {
- /*
- * Give other processes a chance to run if we've
- * been using the CPU exclusively for a while.
- */
- loopcount = 0;
- CRYPTO_Q_UNLOCK();
- schedule();
- CRYPTO_Q_LOCK();
- }
- loopcount++;
- }
- CRYPTO_Q_UNLOCK();
- return 0;
-}
-
-/*
- * Crypto returns thread, does callbacks for processed crypto requests.
- * Callbacks are done here, rather than in the crypto drivers, because
- * callbacks typically are expensive and would slow interrupt handling.
- */
-static int
-crypto_ret_proc(void *arg)
-{
- struct cryptop *crpt;
- struct cryptkop *krpt;
- unsigned long r_flags;
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- CRYPTO_RETQ_LOCK();
- for (;;) {
- /* Harvest return q's for completed ops */
- crpt = NULL;
- if (!list_empty(&crp_ret_q))
- crpt = list_entry(crp_ret_q.next, typeof(*crpt), crp_next);
- if (crpt != NULL)
- list_del(&crpt->crp_next);
-
- krpt = NULL;
- if (!list_empty(&crp_ret_kq))
- krpt = list_entry(crp_ret_kq.next, typeof(*krpt), krp_next);
- if (krpt != NULL)
- list_del(&krpt->krp_next);
-
- if (crpt != NULL || krpt != NULL) {
- CRYPTO_RETQ_UNLOCK();
- /*
- * Run callbacks unlocked.
- */
- if (crpt != NULL)
- crpt->crp_callback(crpt);
- if (krpt != NULL)
- krpt->krp_callback(krpt);
- CRYPTO_RETQ_LOCK();
- } else {
- /*
- * Nothing more to be processed. Sleep until we're
- * woken because there are more returns to process.
- */
- dprintk("%s - sleeping\n", __FUNCTION__);
- CRYPTO_RETQ_UNLOCK();
- wait_event_interruptible(cryptoretproc_wait,
- !list_empty(&crp_ret_q) ||
- !list_empty(&crp_ret_kq) ||
- kthread_should_stop());
- if (signal_pending (current)) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- spin_lock_irq(¤t->sigmask_lock);
-#endif
- flush_signals(current);
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
- spin_unlock_irq(¤t->sigmask_lock);
-#endif
- }
- CRYPTO_RETQ_LOCK();
- dprintk("%s - awake\n", __FUNCTION__);
- if (kthread_should_stop()) {
- dprintk("%s - EXITING!\n", __FUNCTION__);
- break;
- }
- cryptostats.cs_rets++;
- }
- }
- CRYPTO_RETQ_UNLOCK();
- return 0;
-}
-
-
-#if 0 /* should put this into /proc or something */
-static void
-db_show_drivers(void)
-{
- int hid;
-
- db_printf("%12s %4s %4s %8s %2s %2s\n"
- , "Device"
- , "Ses"
- , "Kops"
- , "Flags"
- , "QB"
- , "KB"
- );
- for (hid = 0; hid < crypto_drivers_num; hid++) {
- const struct cryptocap *cap = &crypto_drivers[hid];
- if (cap->cc_dev == NULL)
- continue;
- db_printf("%-12s %4u %4u %08x %2u %2u\n"
- , device_get_nameunit(cap->cc_dev)
- , cap->cc_sessions
- , cap->cc_koperations
- , cap->cc_flags
- , cap->cc_qblocked
- , cap->cc_kqblocked
- );
- }
-}
-
-DB_SHOW_COMMAND(crypto, db_show_crypto)
-{
- struct cryptop *crp;
-
- db_show_drivers();
- db_printf("\n");
-
- db_printf("%4s %8s %4s %4s %4s %4s %8s %8s\n",
- "HID", "Caps", "Ilen", "Olen", "Etype", "Flags",
- "Desc", "Callback");
- TAILQ_FOREACH(crp, &crp_q, crp_next) {
- db_printf("%4u %08x %4u %4u %4u %04x %8p %8p\n"
- , (int) CRYPTO_SESID2HID(crp->crp_sid)
- , (int) CRYPTO_SESID2CAPS(crp->crp_sid)
- , crp->crp_ilen, crp->crp_olen
- , crp->crp_etype
- , crp->crp_flags
- , crp->crp_desc
- , crp->crp_callback
- );
- }
- if (!TAILQ_EMPTY(&crp_ret_q)) {
- db_printf("\n%4s %4s %4s %8s\n",
- "HID", "Etype", "Flags", "Callback");
- TAILQ_FOREACH(crp, &crp_ret_q, crp_next) {
- db_printf("%4u %4u %04x %8p\n"
- , (int) CRYPTO_SESID2HID(crp->crp_sid)
- , crp->crp_etype
- , crp->crp_flags
- , crp->crp_callback
- );
- }
- }
-}
-
-DB_SHOW_COMMAND(kcrypto, db_show_kcrypto)
-{
- struct cryptkop *krp;
-
- db_show_drivers();
- db_printf("\n");
-
- db_printf("%4s %5s %4s %4s %8s %4s %8s\n",
- "Op", "Status", "#IP", "#OP", "CRID", "HID", "Callback");
- TAILQ_FOREACH(krp, &crp_kq, krp_next) {
- db_printf("%4u %5u %4u %4u %08x %4u %8p\n"
- , krp->krp_op
- , krp->krp_status
- , krp->krp_iparams, krp->krp_oparams
- , krp->krp_crid, krp->krp_hid
- , krp->krp_callback
- );
- }
- if (!TAILQ_EMPTY(&crp_ret_q)) {
- db_printf("%4s %5s %8s %4s %8s\n",
- "Op", "Status", "CRID", "HID", "Callback");
- TAILQ_FOREACH(krp, &crp_ret_kq, krp_next) {
- db_printf("%4u %5u %08x %4u %8p\n"
- , krp->krp_op
- , krp->krp_status
- , krp->krp_crid, krp->krp_hid
- , krp->krp_callback
- );
- }
- }
-}
-#endif
-
-
-static int
-crypto_init(void)
-{
- int error;
- unsigned long cpu;
-
- dprintk("%s(%p)\n", __FUNCTION__, (void *) crypto_init);
-
- if (crypto_initted)
- return 0;
- crypto_initted = 1;
-
- spin_lock_init(&crypto_drivers_lock);
- spin_lock_init(&crypto_q_lock);
- spin_lock_init(&crypto_ret_q_lock);
-
- cryptop_zone = kmem_cache_create("cryptop", sizeof(struct cryptop),
- 0, SLAB_HWCACHE_ALIGN, NULL
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
- , NULL
-#endif
- );
-
- cryptodesc_zone = kmem_cache_create("cryptodesc", sizeof(struct cryptodesc),
- 0, SLAB_HWCACHE_ALIGN, NULL
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
- , NULL
-#endif
- );
-
- if (cryptodesc_zone == NULL || cryptop_zone == NULL) {
- printk("crypto: crypto_init cannot setup crypto zones\n");
- error = ENOMEM;
- goto bad;
- }
-
- crypto_drivers_num = CRYPTO_DRIVERS_INITIAL;
- crypto_drivers = kmalloc(crypto_drivers_num * sizeof(struct cryptocap),
- GFP_KERNEL);
- if (crypto_drivers == NULL) {
- printk("crypto: crypto_init cannot setup crypto drivers\n");
- error = ENOMEM;
- goto bad;
- }
-
- memset(crypto_drivers, 0, crypto_drivers_num * sizeof(struct cryptocap));
-
- ocf_for_each_cpu(cpu) {
- cryptoproc[cpu] = kthread_create(crypto_proc, (void *) cpu,
- "ocf_%d", (int) cpu);
- if (IS_ERR(cryptoproc[cpu])) {
- error = PTR_ERR(cryptoproc[cpu]);
- printk("crypto: crypto_init cannot start crypto thread; error %d",
- error);
- goto bad;
- }
- kthread_bind(cryptoproc[cpu], cpu);
- wake_up_process(cryptoproc[cpu]);
-
- cryptoretproc[cpu] = kthread_create(crypto_ret_proc, (void *) cpu,
- "ocf_ret_%d", (int) cpu);
- if (IS_ERR(cryptoretproc[cpu])) {
- error = PTR_ERR(cryptoretproc[cpu]);
- printk("crypto: crypto_init cannot start cryptoret thread; error %d",
- error);
- goto bad;
- }
- kthread_bind(cryptoretproc[cpu], cpu);
- wake_up_process(cryptoretproc[cpu]);
- }
-
- return 0;
-bad:
- crypto_exit();
- return error;
-}
-
-
-static void
-crypto_exit(void)
-{
- int cpu;
-
- dprintk("%s()\n", __FUNCTION__);
-
- /*
- * Terminate any crypto threads.
- */
- ocf_for_each_cpu(cpu) {
- kthread_stop(cryptoproc[cpu]);
- kthread_stop(cryptoretproc[cpu]);
- }
-
- /*
- * Reclaim dynamically allocated resources.
- */
- if (crypto_drivers != NULL)
- kfree(crypto_drivers);
-
- if (cryptodesc_zone != NULL)
- kmem_cache_destroy(cryptodesc_zone);
- if (cryptop_zone != NULL)
- kmem_cache_destroy(cryptop_zone);
-}
-
-
-EXPORT_SYMBOL(crypto_newsession);
-EXPORT_SYMBOL(crypto_freesession);
-EXPORT_SYMBOL(crypto_get_driverid);
-EXPORT_SYMBOL(crypto_kregister);
-EXPORT_SYMBOL(crypto_register);
-EXPORT_SYMBOL(crypto_unregister);
-EXPORT_SYMBOL(crypto_unregister_all);
-EXPORT_SYMBOL(crypto_unblock);
-EXPORT_SYMBOL(crypto_dispatch);
-EXPORT_SYMBOL(crypto_kdispatch);
-EXPORT_SYMBOL(crypto_freereq);
-EXPORT_SYMBOL(crypto_getreq);
-EXPORT_SYMBOL(crypto_done);
-EXPORT_SYMBOL(crypto_kdone);
-EXPORT_SYMBOL(crypto_getfeat);
-EXPORT_SYMBOL(crypto_userasymcrypto);
-EXPORT_SYMBOL(crypto_getcaps);
-EXPORT_SYMBOL(crypto_find_driver);
-EXPORT_SYMBOL(crypto_find_device_byhid);
-
-module_init(crypto_init);
-module_exit(crypto_exit);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>");
-MODULE_DESCRIPTION("OCF (OpenBSD Cryptographic Framework)");
+++ /dev/null
-# for SGlinux builds
--include $(ROOTDIR)/modules/.config
-
-obj-$(CONFIG_OCF_CRYPTOCTEON) += cryptocteon.o
-
-obj ?= .
-EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
-
-ifdef CONFIG_OCF_CRYPTOCTEON
-# you need the cavium crypto component installed
-EXTRA_CFLAGS += -I$(ROOTDIR)/prop/include
-endif
-
-ifdef TOPDIR
--include $(TOPDIR)/Rules.make
-endif
-
+++ /dev/null
-
-You will need the CRYPTO package installed to build this driver, and
-potentially the ADK.
-
-cavium_crypto sourced from:
-
- adk/components/source/cavium_ipsec_kame/cavium_ipsec.c
-
-and significantly modified to suit use with OCF. All original
-copyright/ownership headers retained.
-
+++ /dev/null
-/*
- * Copyright (c) 2009 David McCullough <david.mccullough@securecomputing.com>
- *
- * Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by Cavium Networks
- * 4. Cavium Networks' name may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * This Software, including technical data, may be subject to U.S. export
- * control laws, including the U.S. Export Administration Act and its
- * associated regulations, and may be subject to export or import regulations
- * in other countries. You warrant that You will comply strictly in all
- * respects with all such regulations and acknowledge that you have the
- * responsibility to obtain licenses to export, re-export or import the
- * Software.
- *
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" AND
- * WITH ALL FAULTS AND CAVIUM MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES,
- * EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE
- * SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
- * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
- * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
- * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
- * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
- * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
- * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
-*/
-/****************************************************************************/
-
-#include <linux/scatterlist.h>
-#include <asm/octeon/octeon.h>
-#include "octeon-asm.h"
-
-/****************************************************************************/
-
-extern unsigned long octeon_crypto_enable(struct octeon_cop2_state *);
-extern void octeon_crypto_disable(struct octeon_cop2_state *, unsigned long);
-
-#define SG_INIT(s, p, i, l) \
- { \
- (i) = 0; \
- (l) = (s)[0].length; \
- (p) = (typeof(p)) sg_virt((s)); \
- CVMX_PREFETCH0((p)); \
- }
-
-#define SG_CONSUME(s, p, i, l) \
- { \
- (p)++; \
- (l) -= sizeof(*(p)); \
- if ((l) < 0) { \
- dprintk("%s, %d: l = %d\n", __FILE__, __LINE__, l); \
- } else if ((l) == 0) { \
- (i)++; \
- (l) = (s)[0].length; \
- (p) = (typeof(p)) sg_virt(s); \
- CVMX_PREFETCH0((p)); \
- } \
- }
-
-#define ESP_HEADER_LENGTH 8
-#define DES_CBC_IV_LENGTH 8
-#define AES_CBC_IV_LENGTH 16
-#define ESP_HMAC_LEN 12
-
-#define ESP_HEADER_LENGTH 8
-#define DES_CBC_IV_LENGTH 8
-
-/****************************************************************************/
-
-#define CVM_LOAD_SHA_UNIT(dat, next) { \
- if (next == 0) { \
- next = 1; \
- CVMX_MT_HSH_DAT (dat, 0); \
- } else if (next == 1) { \
- next = 2; \
- CVMX_MT_HSH_DAT (dat, 1); \
- } else if (next == 2) { \
- next = 3; \
- CVMX_MT_HSH_DAT (dat, 2); \
- } else if (next == 3) { \
- next = 4; \
- CVMX_MT_HSH_DAT (dat, 3); \
- } else if (next == 4) { \
- next = 5; \
- CVMX_MT_HSH_DAT (dat, 4); \
- } else if (next == 5) { \
- next = 6; \
- CVMX_MT_HSH_DAT (dat, 5); \
- } else if (next == 6) { \
- next = 7; \
- CVMX_MT_HSH_DAT (dat, 6); \
- } else { \
- CVMX_MT_HSH_STARTSHA (dat); \
- next = 0; \
- } \
-}
-
-#define CVM_LOAD2_SHA_UNIT(dat1, dat2, next) { \
- if (next == 0) { \
- CVMX_MT_HSH_DAT (dat1, 0); \
- CVMX_MT_HSH_DAT (dat2, 1); \
- next = 2; \
- } else if (next == 1) { \
- CVMX_MT_HSH_DAT (dat1, 1); \
- CVMX_MT_HSH_DAT (dat2, 2); \
- next = 3; \
- } else if (next == 2) { \
- CVMX_MT_HSH_DAT (dat1, 2); \
- CVMX_MT_HSH_DAT (dat2, 3); \
- next = 4; \
- } else if (next == 3) { \
- CVMX_MT_HSH_DAT (dat1, 3); \
- CVMX_MT_HSH_DAT (dat2, 4); \
- next = 5; \
- } else if (next == 4) { \
- CVMX_MT_HSH_DAT (dat1, 4); \
- CVMX_MT_HSH_DAT (dat2, 5); \
- next = 6; \
- } else if (next == 5) { \
- CVMX_MT_HSH_DAT (dat1, 5); \
- CVMX_MT_HSH_DAT (dat2, 6); \
- next = 7; \
- } else if (next == 6) { \
- CVMX_MT_HSH_DAT (dat1, 6); \
- CVMX_MT_HSH_STARTSHA (dat2); \
- next = 0; \
- } else { \
- CVMX_MT_HSH_STARTSHA (dat1); \
- CVMX_MT_HSH_DAT (dat2, 0); \
- next = 1; \
- } \
-}
-
-/****************************************************************************/
-
-#define CVM_LOAD_MD5_UNIT(dat, next) { \
- if (next == 0) { \
- next = 1; \
- CVMX_MT_HSH_DAT (dat, 0); \
- } else if (next == 1) { \
- next = 2; \
- CVMX_MT_HSH_DAT (dat, 1); \
- } else if (next == 2) { \
- next = 3; \
- CVMX_MT_HSH_DAT (dat, 2); \
- } else if (next == 3) { \
- next = 4; \
- CVMX_MT_HSH_DAT (dat, 3); \
- } else if (next == 4) { \
- next = 5; \
- CVMX_MT_HSH_DAT (dat, 4); \
- } else if (next == 5) { \
- next = 6; \
- CVMX_MT_HSH_DAT (dat, 5); \
- } else if (next == 6) { \
- next = 7; \
- CVMX_MT_HSH_DAT (dat, 6); \
- } else { \
- CVMX_MT_HSH_STARTMD5 (dat); \
- next = 0; \
- } \
-}
-
-#define CVM_LOAD2_MD5_UNIT(dat1, dat2, next) { \
- if (next == 0) { \
- CVMX_MT_HSH_DAT (dat1, 0); \
- CVMX_MT_HSH_DAT (dat2, 1); \
- next = 2; \
- } else if (next == 1) { \
- CVMX_MT_HSH_DAT (dat1, 1); \
- CVMX_MT_HSH_DAT (dat2, 2); \
- next = 3; \
- } else if (next == 2) { \
- CVMX_MT_HSH_DAT (dat1, 2); \
- CVMX_MT_HSH_DAT (dat2, 3); \
- next = 4; \
- } else if (next == 3) { \
- CVMX_MT_HSH_DAT (dat1, 3); \
- CVMX_MT_HSH_DAT (dat2, 4); \
- next = 5; \
- } else if (next == 4) { \
- CVMX_MT_HSH_DAT (dat1, 4); \
- CVMX_MT_HSH_DAT (dat2, 5); \
- next = 6; \
- } else if (next == 5) { \
- CVMX_MT_HSH_DAT (dat1, 5); \
- CVMX_MT_HSH_DAT (dat2, 6); \
- next = 7; \
- } else if (next == 6) { \
- CVMX_MT_HSH_DAT (dat1, 6); \
- CVMX_MT_HSH_STARTMD5 (dat2); \
- next = 0; \
- } else { \
- CVMX_MT_HSH_STARTMD5 (dat1); \
- CVMX_MT_HSH_DAT (dat2, 0); \
- next = 1; \
- } \
-}
-
-/****************************************************************************/
-
-static inline uint64_t
-swap64(uint64_t a)
-{
- return ((a >> 56) |
- (((a >> 48) & 0xfful) << 8) |
- (((a >> 40) & 0xfful) << 16) |
- (((a >> 32) & 0xfful) << 24) |
- (((a >> 24) & 0xfful) << 32) |
- (((a >> 16) & 0xfful) << 40) |
- (((a >> 8) & 0xfful) << 48) | (((a >> 0) & 0xfful) << 56));
-}
-
-/****************************************************************************/
-
-void
-octo_calc_hash(__u8 auth, unsigned char *key, uint64_t *inner, uint64_t *outer)
-{
- uint8_t hash_key[64];
- uint64_t *key1;
- register uint64_t xor1 = 0x3636363636363636ULL;
- register uint64_t xor2 = 0x5c5c5c5c5c5c5c5cULL;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- memset(hash_key, 0, sizeof(hash_key));
- memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16));
- key1 = (uint64_t *) hash_key;
- flags = octeon_crypto_enable(&state);
- if (auth) {
- CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0);
- CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1);
- CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2);
- } else {
- CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0);
- CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1);
- }
-
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 0);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 1);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 2);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 3);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 4);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 5);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor1), 6);
- key1++;
- if (auth)
- CVMX_MT_HSH_STARTSHA((*key1 ^ xor1));
- else
- CVMX_MT_HSH_STARTMD5((*key1 ^ xor1));
-
- CVMX_MF_HSH_IV(inner[0], 0);
- CVMX_MF_HSH_IV(inner[1], 1);
- if (auth) {
- inner[2] = 0;
- CVMX_MF_HSH_IV(((uint64_t *) inner)[2], 2);
- }
-
- memset(hash_key, 0, sizeof(hash_key));
- memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16));
- key1 = (uint64_t *) hash_key;
- if (auth) {
- CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0);
- CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1);
- CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2);
- } else {
- CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0);
- CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1);
- }
-
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 0);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 1);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 2);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 3);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 4);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 5);
- key1++;
- CVMX_MT_HSH_DAT((*key1 ^ xor2), 6);
- key1++;
- if (auth)
- CVMX_MT_HSH_STARTSHA((*key1 ^ xor2));
- else
- CVMX_MT_HSH_STARTMD5((*key1 ^ xor2));
-
- CVMX_MF_HSH_IV(outer[0], 0);
- CVMX_MF_HSH_IV(outer[1], 1);
- if (auth) {
- outer[2] = 0;
- CVMX_MF_HSH_IV(outer[2], 2);
- }
- octeon_crypto_disable(&state, flags);
- return;
-}
-
-/****************************************************************************/
-/* DES functions */
-
-int
-octo_des_cbc_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- uint64_t *data;
- int data_i, data_l;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- while (crypt_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_off -= 8;
- }
-
- while (crypt_len > 0) {
- CVMX_MT_3DES_ENC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_len -= 8;
- }
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-
-int
-octo_des_cbc_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- uint64_t *data;
- int data_i, data_l;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- while (crypt_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_off -= 8;
- }
-
- while (crypt_len > 0) {
- CVMX_MT_3DES_DEC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_len -= 8;
- }
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* AES functions */
-
-int
-octo_aes_cbc_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- uint64_t *data, *pdata;
- int data_i, data_l;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- while (crypt_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_off -= 8;
- }
-
- while (crypt_len > 0) {
- pdata = data;
- CVMX_MT_AES_ENC_CBC0(*data);
- SG_CONSUME(sg, data, data_i, data_l);
- CVMX_MT_AES_ENC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_len -= 16;
- }
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-
-int
-octo_aes_cbc_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- uint64_t *data, *pdata;
- int data_i, data_l;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- while (crypt_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_off -= 8;
- }
-
- while (crypt_len > 0) {
- pdata = data;
- CVMX_MT_AES_DEC_CBC0(*data);
- SG_CONSUME(sg, data, data_i, data_l);
- CVMX_MT_AES_DEC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- SG_CONSUME(sg, data, data_i, data_l);
- crypt_len -= 16;
- }
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* MD5 */
-
-int
-octo_null_md5_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- uint64_t *data;
- uint64_t tmp1, tmp2;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 ||
- (auth_off & 0x7) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- flags = octeon_crypto_enable(&state);
-
- /* Load MD5 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
-
- while (auth_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- auth_off -= 8;
- }
-
- while (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*data, next);
- auth_len -= 8;
- SG_CONSUME(sg, data, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVMX_ES64(tmp1, ((alen + 64) << 3));
- CVM_LOAD_MD5_UNIT(tmp1, next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_ES64(tmp1, ((64 + 16) << 3));
- CVMX_MT_HSH_STARTMD5(tmp1);
-
- /* save the HMAC */
- SG_INIT(sg, data, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- icv_off -= 8;
- }
- CVMX_MF_HSH_IV(*data, 0);
- SG_CONSUME(sg, data, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *(uint32_t *)data = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* SHA1 */
-
-int
-octo_null_sha1_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- uint64_t *data;
- uint64_t tmp1, tmp2, tmp3;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 ||
- (auth_off & 0x7) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data, data_i, data_l);
-
- flags = octeon_crypto_enable(&state);
-
- /* Load SHA1 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
- CVMX_MT_HSH_IV(od->octo_hminner[2], 2);
-
- while (auth_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- auth_off -= 8;
- }
-
- while (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*data, next);
- auth_len -= 8;
- SG_CONSUME(sg, data, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
- tmp3 = 0;
- CVMX_MF_HSH_IV(tmp3, 2);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
- CVMX_MT_HSH_IV(od->octo_hmouter[2], 2);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- tmp3 |= 0x0000000080000000;
- CVMX_MT_HSH_DAT(tmp3, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3));
-
- /* save the HMAC */
- SG_INIT(sg, data, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data, data_i, data_l);
- icv_off -= 8;
- }
- CVMX_MF_HSH_IV(*data, 0);
- SG_CONSUME(sg, data, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *(uint32_t *)data = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* DES MD5 */
-
-int
-octo_des_cbc_md5_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata;
- uint64_t *data = &mydata.data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- /* Load MD5 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- while (crypt_len > 0 || auth_len > 0) {
- uint32_t *first = data32;
- mydata.data32[0] = *first;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata.data32[1] = *data32;
- if (crypt_off <= 0) {
- if (crypt_len > 0) {
- CVMX_MT_3DES_ENC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- crypt_len -= 8;
- }
- } else
- crypt_off -= 8;
- if (auth_off <= 0) {
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*data, next);
- auth_len -= 8;
- }
- } else
- auth_off -= 8;
- *first = mydata.data32[0];
- *data32 = mydata.data32[1];
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVMX_ES64(tmp1, ((alen + 64) << 3));
- CVM_LOAD_MD5_UNIT(tmp1, next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_ES64(tmp1, ((64 + 16) << 3));
- CVMX_MT_HSH_STARTMD5(tmp1);
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-int
-octo_des_cbc_md5_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata;
- uint64_t *data = &mydata.data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- /* Load MD5 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- while (crypt_len > 0 || auth_len > 0) {
- uint32_t *first = data32;
- mydata.data32[0] = *first;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata.data32[1] = *data32;
- if (auth_off <= 0) {
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*data, next);
- auth_len -= 8;
- }
- } else
- auth_off -= 8;
- if (crypt_off <= 0) {
- if (crypt_len > 0) {
- CVMX_MT_3DES_DEC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- crypt_len -= 8;
- }
- } else
- crypt_off -= 8;
- *first = mydata.data32[0];
- *data32 = mydata.data32[1];
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVMX_ES64(tmp1, ((alen + 64) << 3));
- CVM_LOAD_MD5_UNIT(tmp1, next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_ES64(tmp1, ((64 + 16) << 3));
- CVMX_MT_HSH_STARTMD5(tmp1);
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* DES SHA */
-
-int
-octo_des_cbc_sha1_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata;
- uint64_t *data = &mydata.data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2, tmp3;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- /* Load SHA1 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
- CVMX_MT_HSH_IV(od->octo_hminner[2], 2);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- while (crypt_len > 0 || auth_len > 0) {
- uint32_t *first = data32;
- mydata.data32[0] = *first;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata.data32[1] = *data32;
- if (crypt_off <= 0) {
- if (crypt_len > 0) {
- CVMX_MT_3DES_ENC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- crypt_len -= 8;
- }
- } else
- crypt_off -= 8;
- if (auth_off <= 0) {
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*data, next);
- auth_len -= 8;
- }
- } else
- auth_off -= 8;
- *first = mydata.data32[0];
- *data32 = mydata.data32[1];
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_SHA_UNIT(tmp, next);
- } else {
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
- tmp3 = 0;
- CVMX_MF_HSH_IV(tmp3, 2);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
- CVMX_MT_HSH_IV(od->octo_hmouter[2], 2);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- tmp3 |= 0x0000000080000000;
- CVMX_MT_HSH_DAT(tmp3, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3));
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-int
-octo_des_cbc_sha1_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata;
- uint64_t *data = &mydata.data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2, tmp3;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load 3DES Key */
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- if (od->octo_encklen == 24) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- } else if (od->octo_encklen == 8) {
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1);
- CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
-
- CVMX_MT_3DES_IV(* (uint64_t *) ivp);
-
- /* Load SHA1 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
- CVMX_MT_HSH_IV(od->octo_hminner[2], 2);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- while (crypt_len > 0 || auth_len > 0) {
- uint32_t *first = data32;
- mydata.data32[0] = *first;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata.data32[1] = *data32;
- if (auth_off <= 0) {
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*data, next);
- auth_len -= 8;
- }
- } else
- auth_off -= 8;
- if (crypt_off <= 0) {
- if (crypt_len > 0) {
- CVMX_MT_3DES_DEC_CBC(*data);
- CVMX_MF_3DES_RESULT(*data);
- crypt_len -= 8;
- }
- } else
- crypt_off -= 8;
- *first = mydata.data32[0];
- *data32 = mydata.data32[1];
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_SHA_UNIT(tmp, next);
- } else {
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
- tmp3 = 0;
- CVMX_MF_HSH_IV(tmp3, 2);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
- CVMX_MT_HSH_IV(od->octo_hmouter[2], 2);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- tmp3 |= 0x0000000080000000;
- CVMX_MT_HSH_DAT(tmp3, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3));
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* AES MD5 */
-
-int
-octo_aes_cbc_md5_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata[2];
- uint64_t *pdata = &mydata[0].data64[0];
- uint64_t *data = &mydata[1].data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- /* Load MD5 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- /* align auth and crypt */
- while (crypt_off > 0 && auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_MD5_UNIT(*pdata, next);
- crypt_off -= 8;
- auth_len -= 8;
- }
-
- while (crypt_len > 0) {
- uint32_t *pdata32[3];
-
- pdata32[0] = data32;
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
-
- pdata32[1] = data32;
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
-
- pdata32[2] = data32;
- mydata[1].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
-
- mydata[1].data32[1] = *data32;
-
- CVMX_MT_AES_ENC_CBC0(*pdata);
- CVMX_MT_AES_ENC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- crypt_len -= 16;
-
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*pdata, next);
- auth_len -= 8;
- }
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*data, next);
- auth_len -= 8;
- }
-
- *pdata32[0] = mydata[0].data32[0];
- *pdata32[1] = mydata[0].data32[1];
- *pdata32[2] = mydata[1].data32[0];
- *data32 = mydata[1].data32[1];
-
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish any left over hashing */
- while (auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_MD5_UNIT(*pdata, next);
- auth_len -= 8;
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVMX_ES64(tmp1, ((alen + 64) << 3));
- CVM_LOAD_MD5_UNIT(tmp1, next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_ES64(tmp1, ((64 + 16) << 3));
- CVMX_MT_HSH_STARTMD5(tmp1);
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-int
-octo_aes_cbc_md5_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata[2];
- uint64_t *pdata = &mydata[0].data64[0];
- uint64_t *data = &mydata[1].data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s()\n", __FUNCTION__);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- /* Load MD5 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- /* align auth and crypt */
- while (crypt_off > 0 && auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_MD5_UNIT(*pdata, next);
- crypt_off -= 8;
- auth_len -= 8;
- }
-
- while (crypt_len > 0) {
- uint32_t *pdata32[3];
-
- pdata32[0] = data32;
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[1] = data32;
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[2] = data32;
- mydata[1].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[1].data32[1] = *data32;
-
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*pdata, next);
- auth_len -= 8;
- }
-
- if (auth_len > 0) {
- CVM_LOAD_MD5_UNIT(*data, next);
- auth_len -= 8;
- }
-
- CVMX_MT_AES_DEC_CBC0(*pdata);
- CVMX_MT_AES_DEC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- crypt_len -= 16;
-
- *pdata32[0] = mydata[0].data32[0];
- *pdata32[1] = mydata[0].data32[1];
- *pdata32[2] = mydata[1].data32[0];
- *data32 = mydata[1].data32[1];
-
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish left over hash if any */
- while (auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_MD5_UNIT(*pdata, next);
- auth_len -= 8;
- }
-
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVMX_ES64(tmp1, ((alen + 64) << 3));
- CVM_LOAD_MD5_UNIT(tmp1, next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_ES64(tmp1, ((64 + 16) << 3));
- CVMX_MT_HSH_STARTMD5(tmp1);
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
-/* AES SHA1 */
-
-int
-octo_aes_cbc_sha1_encrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata[2];
- uint64_t *pdata = &mydata[0].data64[0];
- uint64_t *data = &mydata[1].data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2, tmp3;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n",
- __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- /* Load SHA IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
- CVMX_MT_HSH_IV(od->octo_hminner[2], 2);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- /* align auth and crypt */
- while (crypt_off > 0 && auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_SHA_UNIT(*pdata, next);
- crypt_off -= 8;
- auth_len -= 8;
- }
-
- while (crypt_len > 0) {
- uint32_t *pdata32[3];
-
- pdata32[0] = data32;
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[1] = data32;
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[2] = data32;
- mydata[1].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[1].data32[1] = *data32;
-
- CVMX_MT_AES_ENC_CBC0(*pdata);
- CVMX_MT_AES_ENC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- crypt_len -= 16;
-
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*pdata, next);
- auth_len -= 8;
- }
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*data, next);
- auth_len -= 8;
- }
-
- *pdata32[0] = mydata[0].data32[0];
- *pdata32[1] = mydata[0].data32[1];
- *pdata32[2] = mydata[1].data32[0];
- *data32 = mydata[1].data32[1];
-
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish and hashing */
- while (auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_SHA_UNIT(*pdata, next);
- auth_len -= 8;
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_SHA_UNIT(tmp, next);
- } else {
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
- tmp3 = 0;
- CVMX_MF_HSH_IV(tmp3, 2);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
- CVMX_MT_HSH_IV(od->octo_hmouter[2], 2);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- tmp3 |= 0x0000000080000000;
- CVMX_MT_HSH_DAT(tmp3, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3));
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-int
-octo_aes_cbc_sha1_decrypt(
- struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp)
-{
- register int next = 0;
- union {
- uint32_t data32[2];
- uint64_t data64[1];
- } mydata[2];
- uint64_t *pdata = &mydata[0].data64[0];
- uint64_t *data = &mydata[1].data64[0];
- uint32_t *data32;
- uint64_t tmp1, tmp2, tmp3;
- int data_i, data_l, alen = auth_len;
- struct octeon_cop2_state state;
- unsigned long flags;
-
- dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n",
- __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off);
-
- if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL ||
- (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) ||
- (crypt_len & 0x7) ||
- (auth_len & 0x7) ||
- (auth_off & 0x3) || (auth_off + auth_len > sg_len))) {
- dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d "
- "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d "
- "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- return -EINVAL;
- }
-
- SG_INIT(sg, data32, data_i, data_l);
-
- CVMX_PREFETCH0(ivp);
- CVMX_PREFETCH0(od->octo_enckey);
-
- flags = octeon_crypto_enable(&state);
-
- /* load AES Key */
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1);
-
- if (od->octo_encklen == 16) {
- CVMX_MT_AES_KEY(0x0, 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 24) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(0x0, 3);
- } else if (od->octo_encklen == 32) {
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2);
- CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3);
- } else {
- octeon_crypto_disable(&state, flags);
- dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen);
- return -EINVAL;
- }
- CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1);
-
- CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0);
- CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1);
-
- /* Load SHA1 IV */
- CVMX_MT_HSH_IV(od->octo_hminner[0], 0);
- CVMX_MT_HSH_IV(od->octo_hminner[1], 1);
- CVMX_MT_HSH_IV(od->octo_hminner[2], 2);
-
- while (crypt_off > 0 && auth_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- crypt_off -= 4;
- auth_off -= 4;
- }
-
- /* align auth and crypt */
- while (crypt_off > 0 && auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_SHA_UNIT(*pdata, next);
- crypt_off -= 8;
- auth_len -= 8;
- }
-
- while (crypt_len > 0) {
- uint32_t *pdata32[3];
-
- pdata32[0] = data32;
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[1] = data32;
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- pdata32[2] = data32;
- mydata[1].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[1].data32[1] = *data32;
-
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*pdata, next);
- auth_len -= 8;
- }
- if (auth_len > 0) {
- CVM_LOAD_SHA_UNIT(*data, next);
- auth_len -= 8;
- }
-
- CVMX_MT_AES_DEC_CBC0(*pdata);
- CVMX_MT_AES_DEC_CBC1(*data);
- CVMX_MF_AES_RESULT(*pdata, 0);
- CVMX_MF_AES_RESULT(*data, 1);
- crypt_len -= 16;
-
- *pdata32[0] = mydata[0].data32[0];
- *pdata32[1] = mydata[0].data32[1];
- *pdata32[2] = mydata[1].data32[0];
- *data32 = mydata[1].data32[1];
-
- SG_CONSUME(sg, data32, data_i, data_l);
- }
-
- /* finish and leftover hashing */
- while (auth_len > 0) {
- mydata[0].data32[0] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- mydata[0].data32[1] = *data32;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVM_LOAD_SHA_UNIT(*pdata, next);
- auth_len -= 8;
- }
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_SHA_UNIT(tmp, next);
- } else {
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* Finish Inner hash */
- while (next != 7) {
- CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next);
- }
- CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next);
-
- /* Get the inner hash of HMAC */
- CVMX_MF_HSH_IV(tmp1, 0);
- CVMX_MF_HSH_IV(tmp2, 1);
- tmp3 = 0;
- CVMX_MF_HSH_IV(tmp3, 2);
-
- /* Initialize hash unit */
- CVMX_MT_HSH_IV(od->octo_hmouter[0], 0);
- CVMX_MT_HSH_IV(od->octo_hmouter[1], 1);
- CVMX_MT_HSH_IV(od->octo_hmouter[2], 2);
-
- CVMX_MT_HSH_DAT(tmp1, 0);
- CVMX_MT_HSH_DAT(tmp2, 1);
- tmp3 |= 0x0000000080000000;
- CVMX_MT_HSH_DAT(tmp3, 2);
- CVMX_MT_HSH_DATZ(3);
- CVMX_MT_HSH_DATZ(4);
- CVMX_MT_HSH_DATZ(5);
- CVMX_MT_HSH_DATZ(6);
- CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3));
-
- /* finish the hash */
- CVMX_PREFETCH0(od->octo_hmouter);
-#if 0
- if (unlikely(inplen)) {
- uint64_t tmp = 0;
- uint8_t *p = (uint8_t *) & tmp;
- p[inplen] = 0x80;
- do {
- inplen--;
- p[inplen] = ((uint8_t *) data)[inplen];
- } while (inplen);
- CVM_LOAD_MD5_UNIT(tmp, next);
- } else {
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
- }
-#else
- CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next);
-#endif
-
- /* save the HMAC */
- SG_INIT(sg, data32, data_i, data_l);
- while (icv_off > 0) {
- SG_CONSUME(sg, data32, data_i, data_l);
- icv_off -= 4;
- }
- CVMX_MF_HSH_IV(tmp1, 0);
- *data32 = (uint32_t) (tmp1 >> 32);
- SG_CONSUME(sg, data32, data_i, data_l);
- *data32 = (uint32_t) tmp1;
- SG_CONSUME(sg, data32, data_i, data_l);
- CVMX_MF_HSH_IV(tmp1, 1);
- *data32 = (uint32_t) (tmp1 >> 32);
-
- octeon_crypto_disable(&state, flags);
- return 0;
-}
-
-/****************************************************************************/
+++ /dev/null
-/*
- * Octeon Crypto for OCF
- *
- * Written by David McCullough <david_mccullough@mcafee.com>
- * Copyright (C) 2009-2010 David McCullough
- *
- * LICENSE TERMS
- *
- * The free distribution and use of this software in both source and binary
- * form is allowed (with or without changes) provided that:
- *
- * 1. distributions of this source code include the above copyright
- * notice, this list of conditions and the following disclaimer;
- *
- * 2. distributions in binary form include the above copyright
- * notice, this list of conditions and the following disclaimer
- * in the documentation and/or other associated materials;
- *
- * 3. the copyright holder's name is not used to endorse products
- * built using this software without specific written permission.
- *
- * DISCLAIMER
- *
- * This software is provided 'as is' with no explicit or implied warranties
- * in respect of its properties, including, but not limited to, correctness
- * and/or fitness for purpose.
- * ---------------------------------------------------------------------------
- */
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
-#include <linux/config.h>
-#endif
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/crypto.h>
-#include <linux/mm.h>
-#include <linux/skbuff.h>
-#include <linux/random.h>
-#include <linux/scatterlist.h>
-
-#include <cryptodev.h>
-#include <uio.h>
-
-struct {
- softc_device_decl sc_dev;
-} octo_softc;
-
-#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
-
-struct octo_sess {
- int octo_encalg;
- #define MAX_CIPHER_KEYLEN 64
- char octo_enckey[MAX_CIPHER_KEYLEN];
- int octo_encklen;
-
- int octo_macalg;
- #define MAX_HASH_KEYLEN 64
- char octo_mackey[MAX_HASH_KEYLEN];
- int octo_macklen;
- int octo_mackey_set;
-
- int octo_mlen;
- int octo_ivsize;
-
- int (*octo_encrypt)(struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp);
- int (*octo_decrypt)(struct octo_sess *od,
- struct scatterlist *sg, int sg_len,
- int auth_off, int auth_len,
- int crypt_off, int crypt_len,
- int icv_off, uint8_t *ivp);
-
- uint64_t octo_hminner[3];
- uint64_t octo_hmouter[3];
-};
-
-int32_t octo_id = -1;
-module_param(octo_id, int, 0444);
-MODULE_PARM_DESC(octo_id, "Read-Only OCF ID for cryptocteon driver");
-
-static struct octo_sess **octo_sessions = NULL;
-static u_int32_t octo_sesnum = 0;
-
-static int octo_process(device_t, struct cryptop *, int);
-static int octo_newsession(device_t, u_int32_t *, struct cryptoini *);
-static int octo_freesession(device_t, u_int64_t);
-
-static device_method_t octo_methods = {
- /* crypto device methods */
- DEVMETHOD(cryptodev_newsession, octo_newsession),
- DEVMETHOD(cryptodev_freesession,octo_freesession),
- DEVMETHOD(cryptodev_process, octo_process),
-};
-
-#define debug octo_debug
-int octo_debug = 0;
-module_param(octo_debug, int, 0644);
-MODULE_PARM_DESC(octo_debug, "Enable debug");
-
-
-#include "cavium_crypto.c"
-
-
-/*
- * Generate a new octo session. We artifically limit it to a single
- * hash/cipher or hash-cipher combo just to make it easier, most callers
- * do not expect more than this anyway.
- */
-static int
-octo_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri)
-{
- struct cryptoini *c, *encini = NULL, *macini = NULL;
- struct octo_sess **ocd;
- int i;
-
- dprintk("%s()\n", __FUNCTION__);
- if (sid == NULL || cri == NULL) {
- dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
- return EINVAL;
- }
-
- /*
- * To keep it simple, we only handle hash, cipher or hash/cipher in a
- * session, you cannot currently do multiple ciphers/hashes in one
- * session even though it would be possibel to code this driver to
- * handle it.
- */
- for (i = 0, c = cri; c && i < 2; i++) {
- if (c->cri_alg == CRYPTO_MD5_HMAC ||
- c->cri_alg == CRYPTO_SHA1_HMAC ||
- c->cri_alg == CRYPTO_NULL_HMAC) {
- if (macini) {
- break;
- }
- macini = c;
- }
- if (c->cri_alg == CRYPTO_DES_CBC ||
- c->cri_alg == CRYPTO_3DES_CBC ||
- c->cri_alg == CRYPTO_AES_CBC ||
- c->cri_alg == CRYPTO_NULL_CBC) {
- if (encini) {
- break;
- }
- encini = c;
- }
- c = c->cri_next;
- }
- if (!macini && !encini) {
- dprintk("%s,%d - EINVAL bad cipher/hash or combination\n",
- __FILE__, __LINE__);
- return EINVAL;
- }
- if (c) {
- dprintk("%s,%d - EINVAL cannot handle chained cipher/hash combos\n",
- __FILE__, __LINE__);
- return EINVAL;
- }
-
- /*
- * So we have something we can do, lets setup the session
- */
-
- if (octo_sessions) {
- for (i = 1; i < octo_sesnum; i++)
- if (octo_sessions[i] == NULL)
- break;
- } else
- i = 1; /* NB: to silence compiler warning */
-
- if (octo_sessions == NULL || i == octo_sesnum) {
- if (octo_sessions == NULL) {
- i = 1; /* We leave octo_sessions[0] empty */
- octo_sesnum = CRYPTO_SW_SESSIONS;
- } else
- octo_sesnum *= 2;
-
- ocd = kmalloc(octo_sesnum * sizeof(struct octo_sess *), SLAB_ATOMIC);
- if (ocd == NULL) {
- /* Reset session number */
- if (octo_sesnum == CRYPTO_SW_SESSIONS)
- octo_sesnum = 0;
- else
- octo_sesnum /= 2;
- dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
- return ENOBUFS;
- }
- memset(ocd, 0, octo_sesnum * sizeof(struct octo_sess *));
-
- /* Copy existing sessions */
- if (octo_sessions) {
- memcpy(ocd, octo_sessions,
- (octo_sesnum / 2) * sizeof(struct octo_sess *));
- kfree(octo_sessions);
- }
-
- octo_sessions = ocd;
- }
-
- ocd = &octo_sessions[i];
- *sid = i;
-
-
- *ocd = (struct octo_sess *) kmalloc(sizeof(struct octo_sess), SLAB_ATOMIC);
- if (*ocd == NULL) {
- octo_freesession(NULL, i);
- dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
- return ENOBUFS;
- }
- memset(*ocd, 0, sizeof(struct octo_sess));
-
- if (encini && encini->cri_key) {
- (*ocd)->octo_encklen = (encini->cri_klen + 7) / 8;
- memcpy((*ocd)->octo_enckey, encini->cri_key, (*ocd)->octo_encklen);
- }
-
- if (macini && macini->cri_key) {
- (*ocd)->octo_macklen = (macini->cri_klen + 7) / 8;
- memcpy((*ocd)->octo_mackey, macini->cri_key, (*ocd)->octo_macklen);
- }
-
- (*ocd)->octo_mlen = 0;
- if (encini && encini->cri_mlen)
- (*ocd)->octo_mlen = encini->cri_mlen;
- else if (macini && macini->cri_mlen)
- (*ocd)->octo_mlen = macini->cri_mlen;
- else
- (*ocd)->octo_mlen = 12;
-
- /*
- * point c at the enc if it exists, otherwise the mac
- */
- c = encini ? encini : macini;
-
- switch (c->cri_alg) {
- case CRYPTO_DES_CBC:
- case CRYPTO_3DES_CBC:
- (*ocd)->octo_ivsize = 8;
- switch (macini ? macini->cri_alg : -1) {
- case CRYPTO_MD5_HMAC:
- (*ocd)->octo_encrypt = octo_des_cbc_md5_encrypt;
- (*ocd)->octo_decrypt = octo_des_cbc_md5_decrypt;
- octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- case CRYPTO_SHA1_HMAC:
- (*ocd)->octo_encrypt = octo_des_cbc_sha1_encrypt;
- (*ocd)->octo_decrypt = octo_des_cbc_sha1_decrypt;
- octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- case -1:
- (*ocd)->octo_encrypt = octo_des_cbc_encrypt;
- (*ocd)->octo_decrypt = octo_des_cbc_decrypt;
- break;
- default:
- octo_freesession(NULL, i);
- dprintk("%s,%d: EINVALn", __FILE__, __LINE__);
- return EINVAL;
- }
- break;
- case CRYPTO_AES_CBC:
- (*ocd)->octo_ivsize = 16;
- switch (macini ? macini->cri_alg : -1) {
- case CRYPTO_MD5_HMAC:
- (*ocd)->octo_encrypt = octo_aes_cbc_md5_encrypt;
- (*ocd)->octo_decrypt = octo_aes_cbc_md5_decrypt;
- octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- case CRYPTO_SHA1_HMAC:
- (*ocd)->octo_encrypt = octo_aes_cbc_sha1_encrypt;
- (*ocd)->octo_decrypt = octo_aes_cbc_sha1_decrypt;
- octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- case -1:
- (*ocd)->octo_encrypt = octo_aes_cbc_encrypt;
- (*ocd)->octo_decrypt = octo_aes_cbc_decrypt;
- break;
- default:
- octo_freesession(NULL, i);
- dprintk("%s,%d: EINVALn", __FILE__, __LINE__);
- return EINVAL;
- }
- break;
- case CRYPTO_MD5_HMAC:
- (*ocd)->octo_encrypt = octo_null_md5_encrypt;
- (*ocd)->octo_decrypt = octo_null_md5_encrypt; /* encrypt == decrypt */
- octo_calc_hash(0, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- case CRYPTO_SHA1_HMAC:
- (*ocd)->octo_encrypt = octo_null_sha1_encrypt;
- (*ocd)->octo_decrypt = octo_null_sha1_encrypt; /* encrypt == decrypt */
- octo_calc_hash(1, macini->cri_key, (*ocd)->octo_hminner,
- (*ocd)->octo_hmouter);
- break;
- default:
- octo_freesession(NULL, i);
- dprintk("%s,%d: EINVALn", __FILE__, __LINE__);
- return EINVAL;
- }
-
- (*ocd)->octo_encalg = encini ? encini->cri_alg : -1;
- (*ocd)->octo_macalg = macini ? macini->cri_alg : -1;
-
- return 0;
-}
-
-/*
- * Free a session.
- */
-static int
-octo_freesession(device_t dev, u_int64_t tid)
-{
- u_int32_t sid = CRYPTO_SESID2LID(tid);
-
- dprintk("%s()\n", __FUNCTION__);
- if (sid > octo_sesnum || octo_sessions == NULL ||
- octo_sessions[sid] == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- return(EINVAL);
- }
-
- /* Silently accept and return */
- if (sid == 0)
- return(0);
-
- if (octo_sessions[sid])
- kfree(octo_sessions[sid]);
- octo_sessions[sid] = NULL;
- return 0;
-}
-
-/*
- * Process a request.
- */
-static int
-octo_process(device_t dev, struct cryptop *crp, int hint)
-{
- struct cryptodesc *crd;
- struct octo_sess *od;
- u_int32_t lid;
-#define SCATTERLIST_MAX 16
- struct scatterlist sg[SCATTERLIST_MAX];
- int sg_num, sg_len;
- struct sk_buff *skb = NULL;
- struct uio *uiop = NULL;
- struct cryptodesc *enccrd = NULL, *maccrd = NULL;
- unsigned char *ivp = NULL;
- unsigned char iv_data[HASH_MAX_LEN];
- int auth_off = 0, auth_len = 0, crypt_off = 0, crypt_len = 0, icv_off = 0;
-
- dprintk("%s()\n", __FUNCTION__);
- /* Sanity check */
- if (crp == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- return EINVAL;
- }
-
- crp->crp_etype = 0;
-
- if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
- dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
- crp->crp_etype = EINVAL;
- goto done;
- }
-
- lid = crp->crp_sid & 0xffffffff;
- if (lid >= octo_sesnum || lid == 0 || octo_sessions == NULL ||
- octo_sessions[lid] == NULL) {
- crp->crp_etype = ENOENT;
- dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
- goto done;
- }
- od = octo_sessions[lid];
-
- /*
- * do some error checking outside of the loop for SKB and IOV processing
- * this leaves us with valid skb or uiop pointers for later
- */
- if (crp->crp_flags & CRYPTO_F_SKBUF) {
- skb = (struct sk_buff *) crp->crp_buf;
- if (skb_shinfo(skb)->nr_frags >= SCATTERLIST_MAX) {
- printk("%s,%d: %d nr_frags > SCATTERLIST_MAX", __FILE__, __LINE__,
- skb_shinfo(skb)->nr_frags);
- goto done;
- }
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- uiop = (struct uio *) crp->crp_buf;
- if (uiop->uio_iovcnt > SCATTERLIST_MAX) {
- printk("%s,%d: %d uio_iovcnt > SCATTERLIST_MAX", __FILE__, __LINE__,
- uiop->uio_iovcnt);
- goto done;
- }
- }
-
- /* point our enccrd and maccrd appropriately */
- crd = crp->crp_desc;
- if (crd->crd_alg == od->octo_encalg) enccrd = crd;
- if (crd->crd_alg == od->octo_macalg) maccrd = crd;
- crd = crd->crd_next;
- if (crd) {
- if (crd->crd_alg == od->octo_encalg) enccrd = crd;
- if (crd->crd_alg == od->octo_macalg) maccrd = crd;
- crd = crd->crd_next;
- }
- if (crd) {
- crp->crp_etype = EINVAL;
- dprintk("%s,%d: ENOENT - descriptors do not match session\n",
- __FILE__, __LINE__);
- goto done;
- }
-
- if (enccrd) {
- if (enccrd->crd_flags & CRD_F_ENCRYPT) {
- if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
- ivp = enccrd->crd_iv;
- else
- read_random((ivp = iv_data), od->octo_ivsize);
- if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0)
- crypto_copyback(crp->crp_flags, crp->crp_buf,
- enccrd->crd_inject, od->octo_ivsize, ivp);
- } else {
- if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
- ivp = enccrd->crd_iv;
- } else {
- ivp = iv_data;
- crypto_copydata(crp->crp_flags, crp->crp_buf,
- enccrd->crd_inject, od->octo_ivsize, (caddr_t) ivp);
- }
- }
-
- if (maccrd) {
- auth_off = maccrd->crd_skip;
- auth_len = maccrd->crd_len;
- icv_off = maccrd->crd_inject;
- }
-
- crypt_off = enccrd->crd_skip;
- crypt_len = enccrd->crd_len;
- } else { /* if (maccrd) */
- auth_off = maccrd->crd_skip;
- auth_len = maccrd->crd_len;
- icv_off = maccrd->crd_inject;
- }
-
-
- /*
- * setup the SG list to cover the buffer
- */
- memset(sg, 0, sizeof(sg));
- if (crp->crp_flags & CRYPTO_F_SKBUF) {
- int i, len;
-
- sg_num = 0;
- sg_len = 0;
-
- len = skb_headlen(skb);
- sg_set_page(&sg[sg_num], virt_to_page(skb->data), len,
- offset_in_page(skb->data));
- sg_len += len;
- sg_num++;
-
- for (i = 0; i < skb_shinfo(skb)->nr_frags && sg_num < SCATTERLIST_MAX;
- i++) {
- len = skb_shinfo(skb)->frags[i].size;
- sg_set_page(&sg[sg_num], skb_frag_page(&skb_shinfo(skb)->frags[i]),
- len, skb_shinfo(skb)->frags[i].page_offset);
- sg_len += len;
- sg_num++;
- }
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- int len;
-
- sg_len = 0;
- for (sg_num = 0; sg_len < crp->crp_ilen &&
- sg_num < uiop->uio_iovcnt &&
- sg_num < SCATTERLIST_MAX; sg_num++) {
- len = uiop->uio_iov[sg_num].iov_len;
- sg_set_page(&sg[sg_num],
- virt_to_page(uiop->uio_iov[sg_num].iov_base), len,
- offset_in_page(uiop->uio_iov[sg_num].iov_base));
- sg_len += len;
- }
- } else {
- sg_len = crp->crp_ilen;
- sg_set_page(&sg[0], virt_to_page(crp->crp_buf), sg_len,
- offset_in_page(crp->crp_buf));
- sg_num = 1;
- }
- if (sg_num > 0)
- sg_mark_end(&sg[sg_num-1]);
-
- /*
- * setup a new explicit key
- */
- if (enccrd) {
- if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
- od->octo_encklen = (enccrd->crd_klen + 7) / 8;
- memcpy(od->octo_enckey, enccrd->crd_key, od->octo_encklen);
- }
- }
- if (maccrd) {
- if (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
- od->octo_macklen = (maccrd->crd_klen + 7) / 8;
- memcpy(od->octo_mackey, maccrd->crd_key, od->octo_macklen);
- od->octo_mackey_set = 0;
- }
- if (!od->octo_mackey_set) {
- octo_calc_hash(maccrd->crd_alg == CRYPTO_MD5_HMAC ? 0 : 1,
- maccrd->crd_key, od->octo_hminner, od->octo_hmouter);
- od->octo_mackey_set = 1;
- }
- }
-
-
- if (!enccrd || (enccrd->crd_flags & CRD_F_ENCRYPT))
- (*od->octo_encrypt)(od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
- else
- (*od->octo_decrypt)(od, sg, sg_len,
- auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp);
-
-done:
- crypto_done(crp);
- return 0;
-}
-
-static int
-cryptocteon_init(void)
-{
- dprintk("%s(%p)\n", __FUNCTION__, cryptocteon_init);
-
- softc_device_init(&octo_softc, "cryptocteon", 0, octo_methods);
-
- octo_id = crypto_get_driverid(softc_get_device(&octo_softc),
- CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SYNC);
- if (octo_id < 0) {
- printk("Cryptocteon device cannot initialize!");
- return -ENODEV;
- }
-
- crypto_register(octo_id, CRYPTO_MD5_HMAC, 0,0);
- crypto_register(octo_id, CRYPTO_SHA1_HMAC, 0,0);
- //crypto_register(octo_id, CRYPTO_MD5, 0,0);
- //crypto_register(octo_id, CRYPTO_SHA1, 0,0);
- crypto_register(octo_id, CRYPTO_DES_CBC, 0,0);
- crypto_register(octo_id, CRYPTO_3DES_CBC, 0,0);
- crypto_register(octo_id, CRYPTO_AES_CBC, 0,0);
-
- return(0);
-}
-
-static void
-cryptocteon_exit(void)
-{
- dprintk("%s()\n", __FUNCTION__);
- crypto_unregister_all(octo_id);
- octo_id = -1;
-}
-
-module_init(cryptocteon_init);
-module_exit(cryptocteon_exit);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_AUTHOR("David McCullough <david_mccullough@mcafee.com>");
-MODULE_DESCRIPTION("Cryptocteon (OCF module for Cavium OCTEON crypto)");
+++ /dev/null
-/* $OpenBSD: cryptodev.c,v 1.52 2002/06/19 07:22:46 deraadt Exp $ */
-
-/*-
- * Linux port done by David McCullough <david_mccullough@mcafee.com>
- * Copyright (C) 2006-2010 David McCullough
- * Copyright (C) 2004-2005 Intel Corporation.
- * The license and original author are listed below.
- *
- * Copyright (c) 2001 Theo de Raadt
- * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
- *
- * 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 author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * 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.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
-__FBSDID("$FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.34 2007/05/09 19:37:02 gnn Exp $");
- */
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
-#include <linux/config.h>
-#endif
-#include <linux/types.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/list.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/unistd.h>
-#include <linux/module.h>
-#include <linux/wait.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/dcache.h>
-#include <linux/file.h>
-#include <linux/mount.h>
-#include <linux/miscdevice.h>
-#include <asm/uaccess.h>
-
-#include <cryptodev.h>
-#include <uio.h>
-
-extern asmlinkage long sys_dup(unsigned int fildes);
-
-#define debug cryptodev_debug
-int cryptodev_debug = 0;
-module_param(cryptodev_debug, int, 0644);
-MODULE_PARM_DESC(cryptodev_debug, "Enable cryptodev debug");
-
-struct csession_info {
- u_int16_t blocksize;
- u_int16_t minkey, maxkey;
-
- u_int16_t keysize;
- /* u_int16_t hashsize; */
- u_int16_t authsize;
- u_int16_t authkey;
- /* u_int16_t ctxsize; */
-};
-
-struct csession {
- struct list_head list;
- u_int64_t sid;
- u_int32_t ses;
-
- wait_queue_head_t waitq;
-
- u_int32_t cipher;
-
- u_int32_t mac;
-
- caddr_t key;
- int keylen;
- u_char tmp_iv[EALG_MAX_BLOCK_LEN];
-
- caddr_t mackey;
- int mackeylen;
-
- struct csession_info info;
-
- struct iovec iovec;
- struct uio uio;
- int error;
-};
-
-struct fcrypt {
- struct list_head csessions;
- int sesn;
-};
-
-static struct csession *csefind(struct fcrypt *, u_int);
-static int csedelete(struct fcrypt *, struct csession *);
-static struct csession *cseadd(struct fcrypt *, struct csession *);
-static struct csession *csecreate(struct fcrypt *, u_int64_t,
- struct cryptoini *crie, struct cryptoini *cria, struct csession_info *);
-static int csefree(struct csession *);
-
-static int cryptodev_op(struct csession *, struct crypt_op *);
-static int cryptodev_key(struct crypt_kop *);
-static int cryptodev_find(struct crypt_find_op *);
-
-static int cryptodev_cb(void *);
-static int cryptodev_open(struct inode *inode, struct file *filp);
-
-/*
- * Check a crypto identifier to see if it requested
- * a valid crid and it's capabilities match.
- */
-static int
-checkcrid(int crid)
-{
- int hid = crid & ~(CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
- int typ = crid & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
- int caps = 0;
-
- /* if the user hasn't selected a driver, then just call newsession */
- if (hid == 0 && typ != 0)
- return 0;
-
- caps = crypto_getcaps(hid);
-
- /* didn't find anything with capabilities */
- if (caps == 0) {
- dprintk("%s: hid=%x typ=%x not matched\n", __FUNCTION__, hid, typ);
- return EINVAL;
- }
-
- /* the user didn't specify SW or HW, so the driver is ok */
- if (typ == 0)
- return 0;
-
- /* if the type specified didn't match */
- if (typ != (caps & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE))) {
- dprintk("%s: hid=%x typ=%x caps=%x not matched\n", __FUNCTION__,
- hid, typ, caps);
- return EINVAL;
- }
-
- return 0;
-}
-
-static int
-cryptodev_op(struct csession *cse, struct crypt_op *cop)
-{
- struct cryptop *crp = NULL;
- struct cryptodesc *crde = NULL, *crda = NULL;
- int error = 0;
-
- dprintk("%s()\n", __FUNCTION__);
- if (cop->len > CRYPTO_MAX_DATA_LEN) {
- dprintk("%s: %d > %d\n", __FUNCTION__, cop->len, CRYPTO_MAX_DATA_LEN);
- return (E2BIG);
- }
-
- if (cse->info.blocksize && (cop->len % cse->info.blocksize) != 0) {
- dprintk("%s: blocksize=%d len=%d\n", __FUNCTION__, cse->info.blocksize,
- cop->len);
- return (EINVAL);
- }
-
- cse->uio.uio_iov = &cse->iovec;
- cse->uio.uio_iovcnt = 1;
- cse->uio.uio_offset = 0;
-#if 0
- cse->uio.uio_resid = cop->len;
- cse->uio.uio_segflg = UIO_SYSSPACE;
- cse->uio.uio_rw = UIO_WRITE;
- cse->uio.uio_td = td;
-#endif
- cse->uio.uio_iov[0].iov_len = cop->len;
- if (cse->info.authsize)
- cse->uio.uio_iov[0].iov_len += cse->info.authsize;
- cse->uio.uio_iov[0].iov_base = kmalloc(cse->uio.uio_iov[0].iov_len,
- GFP_KERNEL);
-
- if (cse->uio.uio_iov[0].iov_base == NULL) {
- dprintk("%s: iov_base kmalloc(%d) failed\n", __FUNCTION__,
- (int)cse->uio.uio_iov[0].iov_len);
- return (ENOMEM);
- }
-
- crp = crypto_getreq((cse->info.blocksize != 0) + (cse->info.authsize != 0));
- if (crp == NULL) {
- dprintk("%s: ENOMEM\n", __FUNCTION__);
- error = ENOMEM;
- goto bail;
- }
-
- if (cse->info.authsize && cse->info.blocksize) {
- if (cop->op == COP_ENCRYPT) {
- crde = crp->crp_desc;
- crda = crde->crd_next;
- } else {
- crda = crp->crp_desc;
- crde = crda->crd_next;
- }
- } else if (cse->info.authsize) {
- crda = crp->crp_desc;
- } else if (cse->info.blocksize) {
- crde = crp->crp_desc;
- } else {
- dprintk("%s: bad request\n", __FUNCTION__);
- error = EINVAL;
- goto bail;
- }
-
- if ((error = copy_from_user(cse->uio.uio_iov[0].iov_base, cop->src,
- cop->len))) {
- dprintk("%s: bad copy\n", __FUNCTION__);
- goto bail;
- }
-
- if (crda) {
- crda->crd_skip = 0;
- crda->crd_len = cop->len;
- crda->crd_inject = cop->len;
-
- crda->crd_alg = cse->mac;
- crda->crd_key = cse->mackey;
- crda->crd_klen = cse->mackeylen * 8;
- }
-
- if (crde) {
- if (cop->op == COP_ENCRYPT)
- crde->crd_flags |= CRD_F_ENCRYPT;
- else
- crde->crd_flags &= ~CRD_F_ENCRYPT;
- crde->crd_len = cop->len;
- crde->crd_inject = 0;
-
- crde->crd_alg = cse->cipher;
- crde->crd_key = cse->key;
- crde->crd_klen = cse->keylen * 8;
- }
-
- crp->crp_ilen = cse->uio.uio_iov[0].iov_len;
- crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM
- | (cop->flags & COP_F_BATCH);
- crp->crp_buf = (caddr_t)&cse->uio;
- crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
- crp->crp_sid = cse->sid;
- crp->crp_opaque = (void *)cse;
-
- if (cop->iv) {
- if (crde == NULL) {
- error = EINVAL;
- dprintk("%s no crde\n", __FUNCTION__);
- goto bail;
- }
- if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
- error = EINVAL;
- dprintk("%s arc4 with IV\n", __FUNCTION__);
- goto bail;
- }
- if ((error = copy_from_user(cse->tmp_iv, cop->iv,
- cse->info.blocksize))) {
- dprintk("%s bad iv copy\n", __FUNCTION__);
- goto bail;
- }
- memcpy(crde->crd_iv, cse->tmp_iv, cse->info.blocksize);
- crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
- crde->crd_skip = 0;
- } else if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
- crde->crd_skip = 0;
- } else if (crde) {
- crde->crd_flags |= CRD_F_IV_PRESENT;
- crde->crd_skip = cse->info.blocksize;
- crde->crd_len -= cse->info.blocksize;
- }
-
- if (cop->mac && crda == NULL) {
- error = EINVAL;
- dprintk("%s no crda\n", __FUNCTION__);
- goto bail;
- }
-
- /*
- * Let the dispatch run unlocked, then, interlock against the
- * callback before checking if the operation completed and going
- * to sleep. This insures drivers don't inherit our lock which
- * results in a lock order reversal between crypto_dispatch forced
- * entry and the crypto_done callback into us.
- */
- error = crypto_dispatch(crp);
- if (error) {
- dprintk("%s error in crypto_dispatch\n", __FUNCTION__);
- goto bail;
- }
-
- dprintk("%s about to WAIT\n", __FUNCTION__);
- /*
- * we really need to wait for driver to complete to maintain
- * state, luckily interrupts will be remembered
- */
- do {
- error = wait_event_interruptible(crp->crp_waitq,
- ((crp->crp_flags & CRYPTO_F_DONE) != 0));
- /*
- * we can't break out of this loop or we will leave behind
- * a huge mess, however, staying here means if your driver
- * is broken user applications can hang and not be killed.
- * The solution, fix your driver :-)
- */
- if (error) {
- schedule();
- error = 0;
- }
- } while ((crp->crp_flags & CRYPTO_F_DONE) == 0);
- dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
-
- if (crp->crp_etype != 0) {
- error = crp->crp_etype;
- dprintk("%s error in crp processing\n", __FUNCTION__);
- goto bail;
- }
-
- if (cse->error) {
- error = cse->error;
- dprintk("%s error in cse processing\n", __FUNCTION__);
- goto bail;
- }
-
- if (cop->dst && (error = copy_to_user(cop->dst,
- cse->uio.uio_iov[0].iov_base, cop->len))) {
- dprintk("%s bad dst copy\n", __FUNCTION__);
- goto bail;
- }
-
- if (cop->mac &&
- (error=copy_to_user(cop->mac,
- (caddr_t)cse->uio.uio_iov[0].iov_base + cop->len,
- cse->info.authsize))) {
- dprintk("%s bad mac copy\n", __FUNCTION__);
- goto bail;
- }
-
-bail:
- if (crp)
- crypto_freereq(crp);
- if (cse->uio.uio_iov[0].iov_base)
- kfree(cse->uio.uio_iov[0].iov_base);
-
- return (error);
-}
-
-static int
-cryptodev_cb(void *op)
-{
- struct cryptop *crp = (struct cryptop *) op;
- struct csession *cse = (struct csession *)crp->crp_opaque;
- int error;
-
- dprintk("%s()\n", __FUNCTION__);
- error = crp->crp_etype;
- if (error == EAGAIN) {
- crp->crp_flags &= ~CRYPTO_F_DONE;
-#ifdef NOTYET
- /*
- * DAVIDM I am fairly sure that we should turn this into a batch
- * request to stop bad karma/lockup, revisit
- */
- crp->crp_flags |= CRYPTO_F_BATCH;
-#endif
- return crypto_dispatch(crp);
- }
- if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
- cse->error = error;
- wake_up_interruptible(&crp->crp_waitq);
- }
- return (0);
-}
-
-static int
-cryptodevkey_cb(void *op)
-{
- struct cryptkop *krp = (struct cryptkop *) op;
- dprintk("%s()\n", __FUNCTION__);
- wake_up_interruptible(&krp->krp_waitq);
- return (0);
-}
-
-static int
-cryptodev_key(struct crypt_kop *kop)
-{
- struct cryptkop *krp = NULL;
- int error = EINVAL;
- int in, out, size, i;
-
- dprintk("%s()\n", __FUNCTION__);
- if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM) {
- dprintk("%s params too big\n", __FUNCTION__);
- return (EFBIG);
- }
-
- in = kop->crk_iparams;
- out = kop->crk_oparams;
- switch (kop->crk_op) {
- case CRK_MOD_EXP:
- if (in == 3 && out == 1)
- break;
- return (EINVAL);
- case CRK_MOD_EXP_CRT:
- if (in == 6 && out == 1)
- break;
- return (EINVAL);
- case CRK_DSA_SIGN:
- if (in == 5 && out == 2)
- break;
- return (EINVAL);
- case CRK_DSA_VERIFY:
- if (in == 7 && out == 0)
- break;
- return (EINVAL);
- case CRK_DH_COMPUTE_KEY:
- if (in == 3 && out == 1)
- break;
- return (EINVAL);
- default:
- return (EINVAL);
- }
-
- krp = (struct cryptkop *)kmalloc(sizeof *krp, GFP_KERNEL);
- if (!krp)
- return (ENOMEM);
- bzero(krp, sizeof *krp);
- krp->krp_op = kop->crk_op;
- krp->krp_status = kop->crk_status;
- krp->krp_iparams = kop->crk_iparams;
- krp->krp_oparams = kop->crk_oparams;
- krp->krp_crid = kop->crk_crid;
- krp->krp_status = 0;
- krp->krp_flags = CRYPTO_KF_CBIMM;
- krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
- init_waitqueue_head(&krp->krp_waitq);
-
- for (i = 0; i < CRK_MAXPARAM; i++)
- krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
- for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
- size = (krp->krp_param[i].crp_nbits + 7) / 8;
- if (size == 0)
- continue;
- krp->krp_param[i].crp_p = (caddr_t) kmalloc(size, GFP_KERNEL);
- if (i >= krp->krp_iparams)
- continue;
- error = copy_from_user(krp->krp_param[i].crp_p,
- kop->crk_param[i].crp_p, size);
- if (error)
- goto fail;
- }
-
- error = crypto_kdispatch(krp);
- if (error)
- goto fail;
-
- do {
- error = wait_event_interruptible(krp->krp_waitq,
- ((krp->krp_flags & CRYPTO_KF_DONE) != 0));
- /*
- * we can't break out of this loop or we will leave behind
- * a huge mess, however, staying here means if your driver
- * is broken user applications can hang and not be killed.
- * The solution, fix your driver :-)
- */
- if (error) {
- schedule();
- error = 0;
- }
- } while ((krp->krp_flags & CRYPTO_KF_DONE) == 0);
-
- dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
-
- kop->crk_crid = krp->krp_crid; /* device that did the work */
- if (krp->krp_status != 0) {
- error = krp->krp_status;
- goto fail;
- }
-
- for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams; i++) {
- size = (krp->krp_param[i].crp_nbits + 7) / 8;
- if (size == 0)
- continue;
- error = copy_to_user(kop->crk_param[i].crp_p, krp->krp_param[i].crp_p,
- size);
- if (error)
- goto fail;
- }
-
-fail:
- if (krp) {
- kop->crk_status =&n
projects / openwrt / openwrt.git / commitdiff