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ubsec.c revision 1.40
      1  1.40       bad /*	$NetBSD: ubsec.c,v 1.40 2014/04/19 12:29:24 bad Exp $	*/
      2   1.1  jonathan /* $FreeBSD: src/sys/dev/ubsec/ubsec.c,v 1.6.2.6 2003/01/23 21:06:43 sam Exp $ */
      3  1.40       bad /*	$OpenBSD: ubsec.c,v 1.143 2009/03/27 13:31:30 reyk Exp$	*/
      4   1.1  jonathan 
      5   1.1  jonathan /*
      6   1.1  jonathan  * Copyright (c) 2000 Jason L. Wright (jason (at) thought.net)
      7   1.1  jonathan  * Copyright (c) 2000 Theo de Raadt (deraadt (at) openbsd.org)
      8   1.1  jonathan  * Copyright (c) 2001 Patrik Lindergren (patrik (at) ipunplugged.com)
      9   1.5     perry  *
     10   1.1  jonathan  * Redistribution and use in source and binary forms, with or without
     11   1.1  jonathan  * modification, are permitted provided that the following conditions
     12   1.1  jonathan  * are met:
     13   1.1  jonathan  * 1. Redistributions of source code must retain the above copyright
     14   1.1  jonathan  *    notice, this list of conditions and the following disclaimer.
     15   1.1  jonathan  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1  jonathan  *    notice, this list of conditions and the following disclaimer in the
     17   1.1  jonathan  *    documentation and/or other materials provided with the distribution.
     18   1.1  jonathan  *
     19   1.1  jonathan  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     20   1.1  jonathan  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     21   1.1  jonathan  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     22   1.1  jonathan  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     23   1.1  jonathan  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     24   1.1  jonathan  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     25   1.1  jonathan  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26   1.1  jonathan  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     27   1.1  jonathan  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     28   1.1  jonathan  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29   1.1  jonathan  * POSSIBILITY OF SUCH DAMAGE.
     30   1.1  jonathan  *
     31   1.1  jonathan  * Effort sponsored in part by the Defense Advanced Research Projects
     32   1.1  jonathan  * Agency (DARPA) and Air Force Research Laboratory, Air Force
     33   1.1  jonathan  * Materiel Command, USAF, under agreement number F30602-01-2-0537.
     34   1.1  jonathan  *
     35   1.1  jonathan  */
     36   1.1  jonathan 
     37  1.14     lukem #include <sys/cdefs.h>
     38  1.40       bad __KERNEL_RCSID(0, "$NetBSD: ubsec.c,v 1.40 2014/04/19 12:29:24 bad Exp $");
     39  1.14     lukem 
     40   1.1  jonathan #undef UBSEC_DEBUG
     41   1.1  jonathan 
     42   1.1  jonathan /*
     43  1.40       bad  * uBsec 5[56]01, 58xx hardware crypto accelerator
     44   1.1  jonathan  */
     45   1.1  jonathan 
     46   1.1  jonathan #include <sys/param.h>
     47   1.1  jonathan #include <sys/systm.h>
     48   1.1  jonathan #include <sys/proc.h>
     49   1.1  jonathan #include <sys/endian.h>
     50   1.1  jonathan #ifdef __NetBSD__
     51  1.29       tls   #define UBSEC_NO_RNG	/* hangs on attach */
     52   1.1  jonathan   #define letoh16 htole16
     53   1.1  jonathan   #define letoh32 htole32
     54   1.1  jonathan #endif
     55   1.1  jonathan #include <sys/errno.h>
     56   1.1  jonathan #include <sys/malloc.h>
     57   1.1  jonathan #include <sys/kernel.h>
     58   1.1  jonathan #include <sys/mbuf.h>
     59   1.1  jonathan #include <sys/device.h>
     60  1.32       bad #include <sys/module.h>
     61   1.1  jonathan #include <sys/queue.h>
     62  1.33       bad #include <sys/sysctl.h>
     63   1.1  jonathan 
     64   1.1  jonathan #include <opencrypto/cryptodev.h>
     65   1.8   thorpej #include <opencrypto/xform.h>
     66   1.1  jonathan #ifdef __OpenBSD__
     67   1.1  jonathan  #include <dev/rndvar.h>
     68   1.1  jonathan  #include <sys/md5k.h>
     69   1.1  jonathan #else
     70  1.26       tls  #include <sys/cprng.h>
     71   1.1  jonathan  #include <sys/md5.h>
     72   1.1  jonathan #endif
     73   1.1  jonathan #include <sys/sha1.h>
     74   1.1  jonathan 
     75   1.1  jonathan #include <dev/pci/pcireg.h>
     76   1.1  jonathan #include <dev/pci/pcivar.h>
     77   1.1  jonathan #include <dev/pci/pcidevs.h>
     78   1.1  jonathan 
     79   1.1  jonathan #include <dev/pci/ubsecreg.h>
     80   1.1  jonathan #include <dev/pci/ubsecvar.h>
     81   1.1  jonathan 
     82   1.1  jonathan /*
     83   1.1  jonathan  * Prototypes and count for the pci_device structure
     84   1.1  jonathan  */
     85  1.22    cegger static	int ubsec_probe(device_t, cfdata_t, void *);
     86  1.22    cegger static	void ubsec_attach(device_t, device_t, void *);
     87  1.32       bad static	int  ubsec_detach(device_t, int);
     88  1.33       bad static	int  ubsec_sysctl_init(void);
     89   1.1  jonathan static	void ubsec_reset_board(struct ubsec_softc *);
     90   1.1  jonathan static	void ubsec_init_board(struct ubsec_softc *);
     91   1.1  jonathan static	void ubsec_init_pciregs(struct pci_attach_args *pa);
     92   1.1  jonathan static	void ubsec_cleanchip(struct ubsec_softc *);
     93   1.1  jonathan static	void ubsec_totalreset(struct ubsec_softc *);
     94   1.1  jonathan static	int  ubsec_free_q(struct ubsec_softc*, struct ubsec_q *);
     95   1.1  jonathan 
     96   1.1  jonathan #ifdef __OpenBSD__
     97   1.1  jonathan struct cfattach ubsec_ca = {
     98   1.1  jonathan 	sizeof(struct ubsec_softc), ubsec_probe, ubsec_attach,
     99   1.1  jonathan };
    100   1.1  jonathan 
    101   1.1  jonathan struct cfdriver ubsec_cd = {
    102   1.1  jonathan 	0, "ubsec", DV_DULL
    103   1.1  jonathan };
    104   1.1  jonathan #else
    105  1.28       chs CFATTACH_DECL_NEW(ubsec, sizeof(struct ubsec_softc), ubsec_probe, ubsec_attach,
    106  1.32       bad 	      ubsec_detach, NULL);
    107   1.1  jonathan extern struct cfdriver ubsec_cd;
    108   1.1  jonathan #endif
    109   1.1  jonathan 
    110   1.1  jonathan /* patchable */
    111   1.1  jonathan #ifdef	UBSEC_DEBUG
    112   1.1  jonathan extern int ubsec_debug;
    113   1.1  jonathan int ubsec_debug=1;
    114   1.1  jonathan #endif
    115   1.1  jonathan 
    116   1.1  jonathan static	int	ubsec_intr(void *);
    117   1.1  jonathan static	int	ubsec_newsession(void*, u_int32_t *, struct cryptoini *);
    118   1.1  jonathan static	int	ubsec_freesession(void*, u_int64_t);
    119   1.1  jonathan static	int	ubsec_process(void*, struct cryptop *, int hint);
    120   1.1  jonathan static	void	ubsec_callback(struct ubsec_softc *, struct ubsec_q *);
    121   1.1  jonathan static	void	ubsec_feed(struct ubsec_softc *);
    122   1.1  jonathan static	void	ubsec_mcopy(struct mbuf *, struct mbuf *, int, int);
    123   1.1  jonathan static	void	ubsec_callback2(struct ubsec_softc *, struct ubsec_q2 *);
    124   1.1  jonathan static	void	ubsec_feed2(struct ubsec_softc *);
    125  1.34       bad static	void	ubsec_feed4(struct ubsec_softc *);
    126   1.1  jonathan #ifndef UBSEC_NO_RNG
    127  1.29       tls static  void	ubsec_rng(void *);
    128  1.29       tls static  void	ubsec_rng_locked(void *);
    129  1.29       tls static  void	ubsec_rng_get(size_t, void *);
    130   1.1  jonathan #endif /* UBSEC_NO_RNG */
    131   1.1  jonathan static	int 	ubsec_dma_malloc(struct ubsec_softc *, bus_size_t,
    132   1.1  jonathan 				 struct ubsec_dma_alloc *, int);
    133   1.1  jonathan static	void	ubsec_dma_free(struct ubsec_softc *, struct ubsec_dma_alloc *);
    134   1.1  jonathan static	int	ubsec_dmamap_aligned(bus_dmamap_t);
    135   1.1  jonathan 
    136   1.1  jonathan static	int	ubsec_kprocess(void*, struct cryptkop *, int);
    137   1.1  jonathan static	int	ubsec_kprocess_modexp_sw(struct ubsec_softc *,
    138   1.1  jonathan 					 struct cryptkop *, int);
    139   1.1  jonathan static	int	ubsec_kprocess_modexp_hw(struct ubsec_softc *,
    140   1.1  jonathan 					 struct cryptkop *, int);
    141   1.1  jonathan static	int	ubsec_kprocess_rsapriv(struct ubsec_softc *,
    142   1.1  jonathan 				       struct cryptkop *, int);
    143   1.1  jonathan static	void	ubsec_kfree(struct ubsec_softc *, struct ubsec_q2 *);
    144   1.1  jonathan static	int	ubsec_ksigbits(struct crparam *);
    145   1.1  jonathan static	void	ubsec_kshift_r(u_int, u_int8_t *, u_int, u_int8_t *, u_int);
    146   1.1  jonathan static	void	ubsec_kshift_l(u_int, u_int8_t *, u_int, u_int8_t *, u_int);
    147   1.1  jonathan 
    148   1.1  jonathan #ifdef UBSEC_DEBUG
    149   1.1  jonathan static void	ubsec_dump_pb(volatile struct ubsec_pktbuf *);
    150   1.1  jonathan static void	ubsec_dump_mcr(struct ubsec_mcr *);
    151   1.1  jonathan static	void	ubsec_dump_ctx2(volatile struct ubsec_ctx_keyop *);
    152   1.1  jonathan #endif
    153   1.1  jonathan 
    154   1.1  jonathan #define	READ_REG(sc,r) \
    155   1.1  jonathan 	bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r))
    156   1.1  jonathan 
    157   1.1  jonathan #define WRITE_REG(sc,reg,val) \
    158   1.1  jonathan 	bus_space_write_4((sc)->sc_st, (sc)->sc_sh, reg, val)
    159   1.1  jonathan 
    160   1.1  jonathan #define	SWAP32(x) (x) = htole32(ntohl((x)))
    161   1.1  jonathan #ifndef HTOLE32
    162   1.1  jonathan  #define	HTOLE32(x) (x) = htole32(x)
    163   1.1  jonathan #endif
    164   1.1  jonathan 
    165   1.1  jonathan struct ubsec_stats ubsecstats;
    166   1.1  jonathan 
    167  1.33       bad static struct sysctllog *ubsec_sysctllog;
    168  1.33       bad 
    169   1.1  jonathan /*
    170   1.5     perry  * ubsec_maxbatch controls the number of crypto ops to voluntarily
    171   1.1  jonathan  * collect into one submission to the hardware.  This batching happens
    172   1.1  jonathan  * when ops are dispatched from the crypto subsystem with a hint that
    173   1.1  jonathan  * more are to follow immediately.  These ops must also not be marked
    174   1.1  jonathan  * with a ``no delay'' flag.
    175   1.1  jonathan  */
    176   1.1  jonathan static	int ubsec_maxbatch = 1;
    177   1.1  jonathan 
    178   1.1  jonathan /*
    179   1.1  jonathan  * ubsec_maxaggr controls the number of crypto ops to submit to the
    180   1.1  jonathan  * hardware as a unit.  This aggregation reduces the number of interrupts
    181   1.1  jonathan  * to the host at the expense of increased latency (for all but the last
    182   1.1  jonathan  * operation).  For network traffic setting this to one yields the highest
    183   1.1  jonathan  * performance but at the expense of more interrupt processing.
    184   1.1  jonathan  */
    185   1.1  jonathan static	int ubsec_maxaggr = 1;
    186   1.1  jonathan 
    187   1.4   thorpej static const struct ubsec_product {
    188   1.4   thorpej 	pci_vendor_id_t		ubsec_vendor;
    189   1.4   thorpej 	pci_product_id_t	ubsec_product;
    190   1.4   thorpej 	int			ubsec_flags;
    191   1.4   thorpej 	int			ubsec_statmask;
    192  1.34       bad 	int			ubsec_maxaggr;
    193   1.4   thorpej 	const char		*ubsec_name;
    194   1.4   thorpej } ubsec_products[] = {
    195   1.4   thorpej 	{ PCI_VENDOR_BLUESTEEL,	PCI_PRODUCT_BLUESTEEL_5501,
    196   1.4   thorpej 	  0,
    197   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    198  1.34       bad 	  UBS_MIN_AGGR,
    199   1.4   thorpej 	  "Bluesteel 5501"
    200   1.4   thorpej 	},
    201   1.4   thorpej 	{ PCI_VENDOR_BLUESTEEL,	PCI_PRODUCT_BLUESTEEL_5601,
    202   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG,
    203   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    204  1.34       bad 	  UBS_MIN_AGGR,
    205   1.4   thorpej 	  "Bluesteel 5601"
    206   1.4   thorpej 	},
    207   1.4   thorpej 
    208   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5801,
    209   1.4   thorpej 	  0,
    210   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    211  1.34       bad 	  UBS_MIN_AGGR,
    212   1.4   thorpej 	  "Broadcom BCM5801"
    213   1.4   thorpej 	},
    214   1.4   thorpej 
    215   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5802,
    216   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG,
    217   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    218  1.34       bad 	  UBS_MIN_AGGR,
    219   1.4   thorpej 	  "Broadcom BCM5802"
    220   1.4   thorpej 	},
    221   1.4   thorpej 
    222   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5805,
    223   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG,
    224   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    225  1.34       bad 	  UBS_MIN_AGGR,
    226   1.4   thorpej 	  "Broadcom BCM5805"
    227   1.4   thorpej 	},
    228   1.4   thorpej 
    229   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5820,
    230   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    231   1.4   thorpej 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY,
    232   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR,
    233  1.34       bad 	  UBS_MIN_AGGR,
    234   1.4   thorpej 	  "Broadcom BCM5820"
    235   1.4   thorpej 	},
    236   1.4   thorpej 
    237   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5821,
    238   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    239   1.4   thorpej 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY,
    240   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    241   1.4   thorpej 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    242  1.34       bad 	  UBS_MIN_AGGR,
    243   1.4   thorpej 	  "Broadcom BCM5821"
    244   1.4   thorpej 	},
    245   1.4   thorpej 	{ PCI_VENDOR_SUN,	PCI_PRODUCT_SUN_SCA1K,
    246   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    247   1.4   thorpej 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY,
    248   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    249   1.4   thorpej 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    250  1.34       bad 	  UBS_MIN_AGGR,
    251   1.4   thorpej 	  "Sun Crypto Accelerator 1000"
    252   1.4   thorpej 	},
    253   1.4   thorpej 	{ PCI_VENDOR_SUN,	PCI_PRODUCT_SUN_5821,
    254   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    255   1.4   thorpej 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY,
    256   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    257   1.4   thorpej 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    258  1.34       bad 	  UBS_MIN_AGGR,
    259   1.4   thorpej 	  "Broadcom BCM5821 (Sun)"
    260   1.4   thorpej 	},
    261   1.4   thorpej 
    262   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5822,
    263   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    264   1.4   thorpej 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY,
    265   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    266   1.4   thorpej 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    267  1.34       bad 	  UBS_MIN_AGGR,
    268   1.4   thorpej 	  "Broadcom BCM5822"
    269   1.4   thorpej 	},
    270   1.4   thorpej 
    271   1.4   thorpej 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5823,
    272   1.4   thorpej 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    273  1.40       bad 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY | UBS_FLAGS_AES,
    274   1.4   thorpej 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    275   1.4   thorpej 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    276  1.34       bad 	  UBS_MIN_AGGR,
    277   1.4   thorpej 	  "Broadcom BCM5823"
    278   1.4   thorpej 	},
    279   1.4   thorpej 
    280  1.34       bad 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5825,
    281  1.34       bad 	  UBS_FLAGS_KEY | UBS_FLAGS_RNG | UBS_FLAGS_LONGCTX |
    282  1.40       bad 	      UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY | UBS_FLAGS_AES,
    283  1.34       bad 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    284  1.34       bad 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY,
    285  1.34       bad 	  UBS_MIN_AGGR,
    286  1.34       bad 	  "Broadcom BCM5825"
    287  1.34       bad 	},
    288  1.34       bad 
    289  1.34       bad 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5860,
    290  1.34       bad 	  UBS_FLAGS_MULTIMCR | UBS_FLAGS_HWNORM |
    291  1.34       bad 	      UBS_FLAGS_LONGCTX |
    292  1.34       bad 	      UBS_FLAGS_RNG | UBS_FLAGS_RNG4 |
    293  1.40       bad 	      UBS_FLAGS_KEY | UBS_FLAGS_BIGKEY | UBS_FLAGS_AES,
    294  1.34       bad 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    295  1.34       bad 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY |
    296  1.34       bad 	      BS_STAT_MCR3_ALLEMPTY | BS_STAT_MCR4_ALLEMPTY,
    297  1.34       bad 	  UBS_MAX_AGGR,
    298  1.34       bad 	  "Broadcom BCM5860"
    299  1.34       bad 	},
    300  1.34       bad 
    301  1.34       bad 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5861,
    302  1.34       bad 	  UBS_FLAGS_MULTIMCR | UBS_FLAGS_HWNORM |
    303  1.34       bad 	      UBS_FLAGS_LONGCTX |
    304  1.34       bad 	      UBS_FLAGS_RNG | UBS_FLAGS_RNG4 |
    305  1.40       bad 	      UBS_FLAGS_KEY | UBS_FLAGS_BIGKEY | UBS_FLAGS_AES,
    306  1.34       bad 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    307  1.34       bad 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY |
    308  1.34       bad 	      BS_STAT_MCR3_ALLEMPTY | BS_STAT_MCR4_ALLEMPTY,
    309  1.34       bad 	  UBS_MAX_AGGR,
    310  1.34       bad 	  "Broadcom BCM5861"
    311  1.34       bad 	},
    312  1.34       bad 
    313  1.34       bad 	{ PCI_VENDOR_BROADCOM,	PCI_PRODUCT_BROADCOM_5862,
    314  1.34       bad 	  UBS_FLAGS_MULTIMCR | UBS_FLAGS_HWNORM |
    315  1.34       bad 	      UBS_FLAGS_LONGCTX |
    316  1.34       bad 	      UBS_FLAGS_RNG | UBS_FLAGS_RNG4 |
    317  1.40       bad 	      UBS_FLAGS_KEY | UBS_FLAGS_BIGKEY | UBS_FLAGS_AES,
    318  1.34       bad 	  BS_STAT_MCR1_DONE | BS_STAT_DMAERR |
    319  1.34       bad 	      BS_STAT_MCR1_ALLEMPTY | BS_STAT_MCR2_ALLEMPTY |
    320  1.34       bad 	      BS_STAT_MCR3_ALLEMPTY | BS_STAT_MCR4_ALLEMPTY,
    321  1.34       bad 	  UBS_MAX_AGGR,
    322  1.34       bad 	  "Broadcom BCM5862"
    323  1.34       bad 	},
    324  1.34       bad 
    325   1.4   thorpej 	{ 0,			0,
    326   1.4   thorpej 	  0,
    327   1.4   thorpej 	  0,
    328  1.34       bad 	  0,
    329   1.4   thorpej 	  NULL
    330   1.4   thorpej 	}
    331   1.4   thorpej };
    332   1.4   thorpej 
    333   1.4   thorpej static const struct ubsec_product *
    334   1.4   thorpej ubsec_lookup(const struct pci_attach_args *pa)
    335   1.4   thorpej {
    336   1.4   thorpej 	const struct ubsec_product *up;
    337   1.4   thorpej 
    338   1.4   thorpej 	for (up = ubsec_products; up->ubsec_name != NULL; up++) {
    339   1.4   thorpej 		if (PCI_VENDOR(pa->pa_id) == up->ubsec_vendor &&
    340   1.4   thorpej 		    PCI_PRODUCT(pa->pa_id) == up->ubsec_product)
    341   1.4   thorpej 			return (up);
    342   1.4   thorpej 	}
    343   1.4   thorpej 	return (NULL);
    344   1.4   thorpej }
    345   1.4   thorpej 
    346   1.1  jonathan static int
    347  1.22    cegger ubsec_probe(device_t parent, cfdata_t match, void *aux)
    348   1.1  jonathan {
    349   1.1  jonathan 	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
    350   1.1  jonathan 
    351   1.4   thorpej 	if (ubsec_lookup(pa) != NULL)
    352   1.1  jonathan 		return (1);
    353   1.1  jonathan 
    354   1.1  jonathan 	return (0);
    355   1.1  jonathan }
    356   1.1  jonathan 
    357   1.7   thorpej static void
    358  1.22    cegger ubsec_attach(device_t parent, device_t self, void *aux)
    359   1.1  jonathan {
    360  1.23    cegger 	struct ubsec_softc *sc = device_private(self);
    361   1.1  jonathan 	struct pci_attach_args *pa = aux;
    362   1.4   thorpej 	const struct ubsec_product *up;
    363   1.1  jonathan 	pci_chipset_tag_t pc = pa->pa_pc;
    364   1.1  jonathan 	pci_intr_handle_t ih;
    365   1.1  jonathan 	const char *intrstr = NULL;
    366  1.34       bad 	pcireg_t memtype;
    367   1.1  jonathan 	struct ubsec_dma *dmap;
    368   1.1  jonathan 	u_int32_t cmd, i;
    369  1.38  christos 	char intrbuf[PCI_INTRSTR_LEN];
    370   1.1  jonathan 
    371  1.28       chs 	sc->sc_dev = self;
    372  1.32       bad 	sc->sc_pct = pc;
    373  1.32       bad 
    374   1.4   thorpej 	up = ubsec_lookup(pa);
    375   1.4   thorpej 	if (up == NULL) {
    376   1.4   thorpej 		printf("\n");
    377   1.4   thorpej 		panic("ubsec_attach: impossible");
    378   1.4   thorpej 	}
    379   1.4   thorpej 
    380  1.27  drochner 	pci_aprint_devinfo_fancy(pa, "Crypto processor", up->ubsec_name, 1);
    381   1.4   thorpej 
    382   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_queue);
    383   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_qchip);
    384   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_queue2);
    385   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_qchip2);
    386  1.34       bad 	SIMPLEQ_INIT(&sc->sc_queue4);
    387  1.34       bad 	SIMPLEQ_INIT(&sc->sc_qchip4);
    388   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_q2free);
    389   1.1  jonathan 
    390   1.4   thorpej 	sc->sc_flags = up->ubsec_flags;
    391   1.4   thorpej 	sc->sc_statmask = up->ubsec_statmask;
    392  1.34       bad 	sc->sc_maxaggr = up->ubsec_maxaggr;
    393   1.1  jonathan 
    394   1.1  jonathan 	cmd = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    395   1.4   thorpej 	cmd |= PCI_COMMAND_MASTER_ENABLE;
    396   1.1  jonathan 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, cmd);
    397   1.1  jonathan 
    398  1.34       bad 	memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BS_BAR);
    399  1.34       bad 	if (pci_mapreg_map(pa, BS_BAR, memtype, 0,
    400  1.32       bad 	    &sc->sc_st, &sc->sc_sh, NULL, &sc->sc_memsize)) {
    401  1.28       chs 		aprint_error_dev(self, "can't find mem space");
    402   1.1  jonathan 		return;
    403   1.1  jonathan 	}
    404   1.1  jonathan 
    405   1.1  jonathan 	sc->sc_dmat = pa->pa_dmat;
    406   1.1  jonathan 
    407   1.1  jonathan 	if (pci_intr_map(pa, &ih)) {
    408  1.28       chs 		aprint_error_dev(self, "couldn't map interrupt\n");
    409   1.1  jonathan 		return;
    410   1.1  jonathan 	}
    411  1.38  christos 	intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf));
    412   1.4   thorpej 	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ubsec_intr, sc);
    413   1.1  jonathan 	if (sc->sc_ih == NULL) {
    414  1.28       chs 		aprint_error_dev(self, "couldn't establish interrupt");
    415   1.1  jonathan 		if (intrstr != NULL)
    416  1.24     njoly 			aprint_error(" at %s", intrstr);
    417  1.24     njoly 		aprint_error("\n");
    418   1.1  jonathan 		return;
    419   1.1  jonathan 	}
    420  1.28       chs 	aprint_normal_dev(self, "interrupting at %s\n", intrstr);
    421   1.1  jonathan 
    422   1.1  jonathan 	sc->sc_cid = crypto_get_driverid(0);
    423   1.1  jonathan 	if (sc->sc_cid < 0) {
    424  1.28       chs 		aprint_error_dev(self, "couldn't get crypto driver id\n");
    425   1.1  jonathan 		pci_intr_disestablish(pc, sc->sc_ih);
    426   1.1  jonathan 		return;
    427   1.1  jonathan 	}
    428   1.1  jonathan 
    429  1.29       tls 	sc->sc_rng_need = RND_POOLBITS / NBBY;
    430  1.29       tls 	mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_VM);
    431  1.29       tls 
    432   1.1  jonathan 	SIMPLEQ_INIT(&sc->sc_freequeue);
    433   1.1  jonathan 	dmap = sc->sc_dmaa;
    434   1.1  jonathan 	for (i = 0; i < UBS_MAX_NQUEUE; i++, dmap++) {
    435   1.1  jonathan 		struct ubsec_q *q;
    436   1.1  jonathan 
    437   1.1  jonathan 		q = (struct ubsec_q *)malloc(sizeof(struct ubsec_q),
    438  1.39       bad 		    M_DEVBUF, M_ZERO|M_NOWAIT);
    439   1.1  jonathan 		if (q == NULL) {
    440  1.28       chs 			aprint_error_dev(self, "can't allocate queue buffers\n");
    441   1.1  jonathan 			break;
    442   1.1  jonathan 		}
    443   1.1  jonathan 
    444   1.1  jonathan 		if (ubsec_dma_malloc(sc, sizeof(struct ubsec_dmachunk),
    445   1.1  jonathan 		    &dmap->d_alloc, 0)) {
    446  1.28       chs 			aprint_error_dev(self, "can't allocate dma buffers\n");
    447   1.1  jonathan 			free(q, M_DEVBUF);
    448   1.1  jonathan 			break;
    449   1.1  jonathan 		}
    450   1.1  jonathan 		dmap->d_dma = (struct ubsec_dmachunk *)dmap->d_alloc.dma_vaddr;
    451   1.1  jonathan 
    452   1.1  jonathan 		q->q_dma = dmap;
    453   1.1  jonathan 		sc->sc_queuea[i] = q;
    454   1.1  jonathan 
    455   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
    456   1.1  jonathan 	}
    457   1.1  jonathan 
    458   1.1  jonathan 	crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0,
    459   1.1  jonathan 	    ubsec_newsession, ubsec_freesession, ubsec_process, sc);
    460   1.1  jonathan 	crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0,
    461   1.1  jonathan 	    ubsec_newsession, ubsec_freesession, ubsec_process, sc);
    462  1.15       tls 	crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC_96, 0, 0,
    463   1.1  jonathan 	    ubsec_newsession, ubsec_freesession, ubsec_process, sc);
    464  1.15       tls 	crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC_96, 0, 0,
    465   1.1  jonathan 	    ubsec_newsession, ubsec_freesession, ubsec_process, sc);
    466  1.40       bad 	if (sc->sc_flags & UBS_FLAGS_AES) {
    467  1.40       bad 		crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0,
    468  1.40       bad 		    ubsec_newsession, ubsec_freesession, ubsec_process, sc);
    469  1.40       bad 	}
    470   1.1  jonathan 
    471   1.1  jonathan 	/*
    472   1.1  jonathan 	 * Reset Broadcom chip
    473   1.1  jonathan 	 */
    474   1.1  jonathan 	ubsec_reset_board(sc);
    475   1.1  jonathan 
    476   1.1  jonathan 	/*
    477   1.1  jonathan 	 * Init Broadcom specific PCI settings
    478   1.1  jonathan 	 */
    479   1.1  jonathan 	ubsec_init_pciregs(pa);
    480   1.1  jonathan 
    481   1.1  jonathan 	/*
    482   1.1  jonathan 	 * Init Broadcom chip
    483   1.1  jonathan 	 */
    484   1.1  jonathan 	ubsec_init_board(sc);
    485   1.1  jonathan 
    486   1.1  jonathan #ifndef UBSEC_NO_RNG
    487   1.1  jonathan 	if (sc->sc_flags & UBS_FLAGS_RNG) {
    488  1.34       bad 		if (sc->sc_flags & UBS_FLAGS_RNG4)
    489  1.34       bad 			sc->sc_statmask |= BS_STAT_MCR4_DONE;
    490  1.34       bad 		else
    491  1.34       bad 			sc->sc_statmask |= BS_STAT_MCR2_DONE;
    492   1.1  jonathan 
    493   1.1  jonathan 		if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
    494   1.1  jonathan 		    &sc->sc_rng.rng_q.q_mcr, 0))
    495   1.1  jonathan 			goto skip_rng;
    496   1.1  jonathan 
    497   1.1  jonathan 		if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_rngbypass),
    498   1.1  jonathan 		    &sc->sc_rng.rng_q.q_ctx, 0)) {
    499   1.1  jonathan 			ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_mcr);
    500   1.1  jonathan 			goto skip_rng;
    501   1.1  jonathan 		}
    502   1.1  jonathan 
    503   1.1  jonathan 		if (ubsec_dma_malloc(sc, sizeof(u_int32_t) *
    504   1.1  jonathan 		    UBSEC_RNG_BUFSIZ, &sc->sc_rng.rng_buf, 0)) {
    505   1.1  jonathan 			ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_ctx);
    506   1.1  jonathan 			ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_mcr);
    507   1.1  jonathan 			goto skip_rng;
    508   1.1  jonathan 		}
    509   1.1  jonathan 
    510  1.29       tls 		rndsource_setcb(&sc->sc_rnd_source, ubsec_rng_get, sc);
    511  1.29       tls 		rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev),
    512  1.29       tls 				  RND_TYPE_RNG,
    513  1.29       tls 				  RND_FLAG_NO_ESTIMATE|RND_FLAG_HASCB);
    514   1.1  jonathan 		if (hz >= 100)
    515   1.1  jonathan 			sc->sc_rnghz = hz / 100;
    516   1.1  jonathan 		else
    517   1.1  jonathan 			sc->sc_rnghz = 1;
    518   1.1  jonathan #ifdef __OpenBSD__
    519   1.1  jonathan 		timeout_set(&sc->sc_rngto, ubsec_rng, sc);
    520   1.1  jonathan 		timeout_add(&sc->sc_rngto, sc->sc_rnghz);
    521   1.1  jonathan #else
    522  1.13        ad 		callout_init(&sc->sc_rngto, 0);
    523  1.30       bad 		callout_setfunc(&sc->sc_rngto, ubsec_rng, sc);
    524  1.30       bad 		callout_schedule(&sc->sc_rngto, sc->sc_rnghz);
    525   1.5     perry #endif
    526   1.4   thorpej  skip_rng:
    527   1.4   thorpej 		if (sc->sc_rnghz)
    528  1.28       chs 			aprint_normal_dev(self, "random number generator enabled\n");
    529   1.4   thorpej 		else
    530  1.28       chs 			aprint_error_dev(self, "WARNING: random number generator "
    531  1.16    cegger 			    "disabled\n");
    532   1.1  jonathan 	}
    533   1.1  jonathan #endif /* UBSEC_NO_RNG */
    534   1.1  jonathan 
    535   1.1  jonathan 	if (sc->sc_flags & UBS_FLAGS_KEY) {
    536   1.1  jonathan 		sc->sc_statmask |= BS_STAT_MCR2_DONE;
    537   1.1  jonathan 
    538   1.1  jonathan 		crypto_kregister(sc->sc_cid, CRK_MOD_EXP, 0,
    539   1.1  jonathan 				 ubsec_kprocess, sc);
    540   1.1  jonathan #if 0
    541   1.1  jonathan 		crypto_kregister(sc->sc_cid, CRK_MOD_EXP_CRT, 0,
    542   1.1  jonathan 				 ubsec_kprocess, sc);
    543   1.1  jonathan #endif
    544   1.1  jonathan 	}
    545   1.1  jonathan }
    546   1.1  jonathan 
    547  1.32       bad static int
    548  1.32       bad ubsec_detach(device_t self, int flags)
    549  1.32       bad {
    550  1.32       bad 	struct ubsec_softc *sc = device_private(self);
    551  1.32       bad 	struct ubsec_q *q, *qtmp;
    552  1.35       bad 	volatile u_int32_t ctrl;
    553  1.32       bad 
    554  1.32       bad 	/* disable interrupts */
    555  1.32       bad 	/* XXX wait/abort current ops? where is DMAERR enabled? */
    556  1.35       bad 	ctrl = READ_REG(sc, BS_CTRL);
    557  1.35       bad 
    558  1.35       bad 	ctrl &= ~(BS_CTRL_MCR2INT | BS_CTRL_MCR1INT | BS_CTRL_DMAERR);
    559  1.35       bad 	if (sc->sc_flags & UBS_FLAGS_MULTIMCR)
    560  1.35       bad 		ctrl &= ~BS_CTRL_MCR4INT;
    561  1.35       bad 
    562  1.35       bad 	WRITE_REG(sc, BS_CTRL, ctrl);
    563  1.32       bad 
    564  1.32       bad #ifndef UBSEC_NO_RNG
    565  1.32       bad 	if (sc->sc_flags & UBS_FLAGS_RNG) {
    566  1.32       bad 		callout_halt(&sc->sc_rngto, NULL);
    567  1.32       bad 		ubsec_dma_free(sc, &sc->sc_rng.rng_buf);
    568  1.32       bad 		ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_ctx);
    569  1.32       bad 		ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_mcr);
    570  1.32       bad 		rnd_detach_source(&sc->sc_rnd_source);
    571  1.32       bad 	}
    572  1.32       bad #endif /* UBSEC_NO_RNG */
    573  1.32       bad 
    574  1.32       bad 	crypto_unregister_all(sc->sc_cid);
    575  1.32       bad 
    576  1.32       bad 	mutex_spin_enter(&sc->sc_mtx);
    577  1.32       bad 
    578  1.32       bad 	ubsec_totalreset(sc);  /* XXX leaves the chip running */
    579  1.32       bad 
    580  1.32       bad 	SIMPLEQ_FOREACH_SAFE(q, &sc->sc_freequeue, q_next, qtmp) {
    581  1.32       bad 		ubsec_dma_free(sc, &q->q_dma->d_alloc);
    582  1.39       bad 		if (q->q_src_map != NULL)
    583  1.39       bad 			bus_dmamap_destroy(sc->sc_dmat, q->q_src_map);
    584  1.39       bad 		if (q->q_cached_dst_map != NULL)
    585  1.39       bad 			bus_dmamap_destroy(sc->sc_dmat, q->q_cached_dst_map);
    586  1.32       bad 		free(q, M_DEVBUF);
    587  1.32       bad 	}
    588  1.32       bad 
    589  1.32       bad 	mutex_spin_exit(&sc->sc_mtx);
    590  1.32       bad 
    591  1.32       bad 	if (sc->sc_ih != NULL) {
    592  1.32       bad 		pci_intr_disestablish(sc->sc_pct, sc->sc_ih);
    593  1.32       bad 		sc->sc_ih = NULL;
    594  1.32       bad 	}
    595  1.32       bad 
    596  1.32       bad 	if (sc->sc_memsize != 0) {
    597  1.32       bad 		bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_memsize);
    598  1.32       bad 		sc->sc_memsize = 0;
    599  1.32       bad 	}
    600  1.32       bad 
    601  1.32       bad 	return 0;
    602  1.32       bad }
    603  1.32       bad 
    604  1.36  pgoyette MODULE(MODULE_CLASS_DRIVER, ubsec, "pci,opencrypto");
    605  1.32       bad 
    606  1.32       bad #ifdef _MODULE
    607  1.32       bad #include "ioconf.c"
    608  1.32       bad #endif
    609  1.32       bad 
    610  1.32       bad static int
    611  1.32       bad ubsec_modcmd(modcmd_t cmd, void *data)
    612  1.32       bad {
    613  1.32       bad 	int error = 0;
    614  1.32       bad 
    615  1.32       bad 	switch (cmd) {
    616  1.32       bad 	case MODULE_CMD_INIT:
    617  1.32       bad #ifdef _MODULE
    618  1.32       bad 		error = config_init_component(cfdriver_ioconf_ubsec,
    619  1.32       bad 		    cfattach_ioconf_ubsec, cfdata_ioconf_ubsec);
    620  1.32       bad #endif
    621  1.33       bad 		if (error == 0)
    622  1.33       bad 			error = ubsec_sysctl_init();
    623  1.32       bad 		return error;
    624  1.32       bad 	case MODULE_CMD_FINI:
    625  1.33       bad 		if (ubsec_sysctllog != NULL)
    626  1.33       bad 			sysctl_teardown(&ubsec_sysctllog);
    627  1.32       bad #ifdef _MODULE
    628  1.32       bad 		error = config_fini_component(cfdriver_ioconf_ubsec,
    629  1.32       bad 		    cfattach_ioconf_ubsec, cfdata_ioconf_ubsec);
    630  1.32       bad #endif
    631  1.32       bad 		return error;
    632  1.32       bad 	default:
    633  1.32       bad 		return ENOTTY;
    634  1.32       bad 	}
    635  1.32       bad }
    636  1.32       bad 
    637  1.33       bad static int
    638  1.33       bad ubsec_sysctl_init(void)
    639  1.33       bad {
    640  1.33       bad 	const struct sysctlnode *node = NULL;
    641  1.33       bad 
    642  1.33       bad 	ubsec_sysctllog = NULL;
    643  1.33       bad 
    644  1.33       bad 	sysctl_createv(&ubsec_sysctllog, 0, NULL, &node,
    645  1.33       bad 		CTLFLAG_PERMANENT,
    646  1.33       bad 		CTLTYPE_NODE, "ubsec",
    647  1.33       bad 		SYSCTL_DESCR("ubsec opetions"),
    648  1.33       bad 		NULL, 0, NULL, 0,
    649  1.33       bad 		CTL_HW, CTL_CREATE, CTL_EOL);
    650  1.33       bad 	sysctl_createv(&ubsec_sysctllog, 0, &node, NULL,
    651  1.33       bad 		CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
    652  1.33       bad 		CTLTYPE_INT, "maxbatch",
    653  1.33       bad 		SYSCTL_DESCR("max ops to batch w/o interrupt"),
    654  1.33       bad 		NULL, 0, &ubsec_maxbatch, 0,
    655  1.33       bad 		CTL_CREATE, CTL_EOL);
    656  1.33       bad 	sysctl_createv(&ubsec_sysctllog, 0, &node, NULL,
    657  1.33       bad 		CTLFLAG_PERMANENT | CTLFLAG_READWRITE,
    658  1.33       bad 		CTLTYPE_INT, "maxaggr",
    659  1.33       bad 		SYSCTL_DESCR("max ops to aggregate under one interrupt"),
    660  1.33       bad 		NULL, 0, &ubsec_maxaggr, 0,
    661  1.33       bad 		CTL_CREATE, CTL_EOL);
    662  1.33       bad 
    663  1.33       bad 	return 0;
    664  1.33       bad }
    665  1.33       bad 
    666   1.1  jonathan /*
    667   1.1  jonathan  * UBSEC Interrupt routine
    668   1.1  jonathan  */
    669   1.7   thorpej static int
    670   1.1  jonathan ubsec_intr(void *arg)
    671   1.1  jonathan {
    672   1.1  jonathan 	struct ubsec_softc *sc = arg;
    673   1.1  jonathan 	volatile u_int32_t stat;
    674   1.1  jonathan 	struct ubsec_q *q;
    675   1.1  jonathan 	struct ubsec_dma *dmap;
    676  1.34       bad 	int flags;
    677   1.1  jonathan 	int npkts = 0, i;
    678   1.1  jonathan 
    679  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
    680   1.1  jonathan 	stat = READ_REG(sc, BS_STAT);
    681   1.1  jonathan 	stat &= sc->sc_statmask;
    682   1.1  jonathan 	if (stat == 0) {
    683  1.29       tls 		mutex_spin_exit(&sc->sc_mtx);
    684   1.1  jonathan 		return (0);
    685   1.1  jonathan 	}
    686   1.1  jonathan 
    687   1.1  jonathan 	WRITE_REG(sc, BS_STAT, stat);		/* IACK */
    688   1.1  jonathan 
    689   1.1  jonathan 	/*
    690   1.1  jonathan 	 * Check to see if we have any packets waiting for us
    691   1.1  jonathan 	 */
    692   1.1  jonathan 	if ((stat & BS_STAT_MCR1_DONE)) {
    693   1.1  jonathan 		while (!SIMPLEQ_EMPTY(&sc->sc_qchip)) {
    694   1.1  jonathan 			q = SIMPLEQ_FIRST(&sc->sc_qchip);
    695   1.1  jonathan 			dmap = q->q_dma;
    696   1.1  jonathan 
    697   1.1  jonathan 			if ((dmap->d_dma->d_mcr.mcr_flags & htole16(UBS_MCR_DONE)) == 0)
    698   1.1  jonathan 				break;
    699   1.1  jonathan 
    700   1.1  jonathan 			q = SIMPLEQ_FIRST(&sc->sc_qchip);
    701   1.1  jonathan 			SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, /*q,*/ q_next);
    702   1.1  jonathan 
    703   1.1  jonathan 			npkts = q->q_nstacked_mcrs;
    704   1.1  jonathan 			sc->sc_nqchip -= 1+npkts;
    705   1.1  jonathan 			/*
    706   1.1  jonathan 			 * search for further sc_qchip ubsec_q's that share
    707   1.1  jonathan 			 * the same MCR, and complete them too, they must be
    708   1.1  jonathan 			 * at the top.
    709   1.1  jonathan 			 */
    710   1.1  jonathan 			for (i = 0; i < npkts; i++) {
    711   1.1  jonathan 				if(q->q_stacked_mcr[i])
    712   1.1  jonathan 					ubsec_callback(sc, q->q_stacked_mcr[i]);
    713   1.1  jonathan 				else
    714   1.1  jonathan 					break;
    715   1.1  jonathan 			}
    716   1.1  jonathan 			ubsec_callback(sc, q);
    717   1.1  jonathan 		}
    718   1.1  jonathan 
    719   1.1  jonathan 		/*
    720   1.1  jonathan 		 * Don't send any more packet to chip if there has been
    721   1.1  jonathan 		 * a DMAERR.
    722   1.1  jonathan 		 */
    723   1.1  jonathan 		if (!(stat & BS_STAT_DMAERR))
    724   1.1  jonathan 			ubsec_feed(sc);
    725   1.1  jonathan 	}
    726   1.1  jonathan 
    727   1.1  jonathan 	/*
    728   1.1  jonathan 	 * Check to see if we have any key setups/rng's waiting for us
    729   1.1  jonathan 	 */
    730   1.1  jonathan 	if ((sc->sc_flags & (UBS_FLAGS_KEY|UBS_FLAGS_RNG)) &&
    731   1.1  jonathan 	    (stat & BS_STAT_MCR2_DONE)) {
    732   1.1  jonathan 		struct ubsec_q2 *q2;
    733   1.1  jonathan 		struct ubsec_mcr *mcr;
    734   1.1  jonathan 
    735   1.1  jonathan 		while (!SIMPLEQ_EMPTY(&sc->sc_qchip2)) {
    736   1.1  jonathan 			q2 = SIMPLEQ_FIRST(&sc->sc_qchip2);
    737   1.1  jonathan 
    738   1.1  jonathan 			bus_dmamap_sync(sc->sc_dmat, q2->q_mcr.dma_map,
    739   1.1  jonathan 			    0, q2->q_mcr.dma_map->dm_mapsize,
    740   1.1  jonathan 			    BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
    741   1.1  jonathan 
    742   1.1  jonathan 			mcr = (struct ubsec_mcr *)q2->q_mcr.dma_vaddr;
    743  1.34       bad 
    744  1.34       bad 			/* A bug in new devices requires to swap this field */
    745  1.34       bad 			if (sc->sc_flags & UBS_FLAGS_MULTIMCR)
    746  1.34       bad 				flags = htole16(mcr->mcr_flags);
    747  1.34       bad 			else
    748  1.34       bad 				flags = mcr->mcr_flags;
    749  1.34       bad 			if ((flags & htole16(UBS_MCR_DONE)) == 0) {
    750   1.1  jonathan 				bus_dmamap_sync(sc->sc_dmat,
    751   1.1  jonathan 				    q2->q_mcr.dma_map, 0,
    752   1.1  jonathan 				    q2->q_mcr.dma_map->dm_mapsize,
    753   1.1  jonathan 				    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
    754   1.1  jonathan 				break;
    755   1.1  jonathan 			}
    756   1.1  jonathan 			q2 = SIMPLEQ_FIRST(&sc->sc_qchip2);
    757   1.1  jonathan 			SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip2, /*q2,*/ q_next);
    758   1.1  jonathan 			ubsec_callback2(sc, q2);
    759   1.1  jonathan 			/*
    760   1.1  jonathan 			 * Don't send any more packet to chip if there has been
    761   1.1  jonathan 			 * a DMAERR.
    762   1.1  jonathan 			 */
    763   1.1  jonathan 			if (!(stat & BS_STAT_DMAERR))
    764   1.1  jonathan 				ubsec_feed2(sc);
    765   1.1  jonathan 		}
    766   1.1  jonathan 	}
    767  1.34       bad 	if ((sc->sc_flags & UBS_FLAGS_RNG4) && (stat & BS_STAT_MCR4_DONE)) {
    768  1.34       bad 		struct ubsec_q2 *q2;
    769  1.34       bad 		struct ubsec_mcr *mcr;
    770  1.34       bad 
    771  1.34       bad 		while (!SIMPLEQ_EMPTY(&sc->sc_qchip4)) {
    772  1.34       bad 			q2 = SIMPLEQ_FIRST(&sc->sc_qchip4);
    773  1.34       bad 
    774  1.34       bad 			bus_dmamap_sync(sc->sc_dmat, q2->q_mcr.dma_map,
    775  1.34       bad 			    0, q2->q_mcr.dma_map->dm_mapsize,
    776  1.34       bad 			    BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
    777  1.34       bad 
    778  1.34       bad 			mcr = (struct ubsec_mcr *)q2->q_mcr.dma_vaddr;
    779  1.34       bad 
    780  1.34       bad 			/* A bug in new devices requires to swap this field */
    781  1.34       bad 			flags = htole16(mcr->mcr_flags);
    782  1.34       bad 
    783  1.34       bad 			if ((flags & htole16(UBS_MCR_DONE)) == 0) {
    784  1.34       bad 				bus_dmamap_sync(sc->sc_dmat,
    785  1.34       bad 				    q2->q_mcr.dma_map, 0,
    786  1.34       bad 				    q2->q_mcr.dma_map->dm_mapsize,
    787  1.34       bad 				    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
    788  1.34       bad 				break;
    789  1.34       bad 			}
    790  1.34       bad 			SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip4, q_next);
    791  1.34       bad 			ubsec_callback2(sc, q2);
    792  1.34       bad 			/*
    793  1.34       bad 			 * Don't send any more packet to chip if there has been
    794  1.34       bad 			 * a DMAERR.
    795  1.34       bad 			 */
    796  1.34       bad 			if (!(stat & BS_STAT_DMAERR))
    797  1.34       bad 				ubsec_feed4(sc);
    798  1.34       bad 		}
    799  1.34       bad 	}
    800   1.1  jonathan 
    801   1.1  jonathan 	/*
    802   1.1  jonathan 	 * Check to see if we got any DMA Error
    803   1.1  jonathan 	 */
    804   1.1  jonathan 	if (stat & BS_STAT_DMAERR) {
    805   1.1  jonathan #ifdef UBSEC_DEBUG
    806   1.1  jonathan 		if (ubsec_debug) {
    807   1.1  jonathan 			volatile u_int32_t a = READ_REG(sc, BS_ERR);
    808   1.1  jonathan 
    809  1.28       chs 			printf("%s: dmaerr %s@%08x\n", device_xname(sc->sc_dev),
    810   1.1  jonathan 			    (a & BS_ERR_READ) ? "read" : "write",
    811   1.1  jonathan 			       a & BS_ERR_ADDR);
    812   1.1  jonathan 		}
    813   1.1  jonathan #endif /* UBSEC_DEBUG */
    814   1.1  jonathan 		ubsecstats.hst_dmaerr++;
    815   1.1  jonathan 		ubsec_totalreset(sc);
    816   1.1  jonathan 		ubsec_feed(sc);
    817   1.1  jonathan 	}
    818   1.1  jonathan 
    819   1.1  jonathan 	if (sc->sc_needwakeup) {		/* XXX check high watermark */
    820   1.6  christos 		int wkeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
    821   1.1  jonathan #ifdef UBSEC_DEBUG
    822   1.1  jonathan 		if (ubsec_debug)
    823  1.28       chs 			printf("%s: wakeup crypto (%x)\n", device_xname(sc->sc_dev),
    824   1.1  jonathan 				sc->sc_needwakeup);
    825   1.1  jonathan #endif /* UBSEC_DEBUG */
    826   1.6  christos 		sc->sc_needwakeup &= ~wkeup;
    827   1.6  christos 		crypto_unblock(sc->sc_cid, wkeup);
    828   1.1  jonathan 	}
    829  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
    830   1.1  jonathan 	return (1);
    831   1.1  jonathan }
    832   1.1  jonathan 
    833   1.1  jonathan /*
    834   1.1  jonathan  * ubsec_feed() - aggregate and post requests to chip
    835   1.1  jonathan  * OpenBSD comments:
    836   1.1  jonathan  *		  It is assumed that the caller set splnet()
    837   1.1  jonathan  */
    838   1.1  jonathan static void
    839   1.1  jonathan ubsec_feed(struct ubsec_softc *sc)
    840   1.1  jonathan {
    841   1.1  jonathan 	struct ubsec_q *q, *q2;
    842   1.1  jonathan 	int npkts, i;
    843   1.1  jonathan 	void *v;
    844   1.1  jonathan 	u_int32_t stat;
    845   1.1  jonathan #ifdef UBSEC_DEBUG
    846   1.1  jonathan 	static int max;
    847   1.1  jonathan #endif /* UBSEC_DEBUG */
    848   1.1  jonathan 
    849   1.1  jonathan 	npkts = sc->sc_nqueue;
    850   1.1  jonathan 	if (npkts > ubsecstats.hst_maxqueue)
    851   1.1  jonathan 		ubsecstats.hst_maxqueue = npkts;
    852   1.1  jonathan 	if (npkts < 2)
    853   1.1  jonathan 		goto feed1;
    854   1.1  jonathan 
    855   1.1  jonathan 	/*
    856   1.1  jonathan 	 * Decide how many ops to combine in a single MCR.  We cannot
    857   1.1  jonathan 	 * aggregate more than UBS_MAX_AGGR because this is the number
    858   1.1  jonathan 	 * of slots defined in the data structure.  Otherwise we clamp
    859   1.1  jonathan 	 * based on the tunable parameter ubsec_maxaggr.  Note that
    860   1.1  jonathan 	 * aggregation can happen in two ways: either by batching ops
    861   1.5     perry 	 * from above or because the h/w backs up and throttles us.
    862   1.1  jonathan 	 * Aggregating ops reduces the number of interrupts to the host
    863   1.1  jonathan 	 * but also (potentially) increases the latency for processing
    864   1.1  jonathan 	 * completed ops as we only get an interrupt when all aggregated
    865   1.1  jonathan 	 * ops have completed.
    866   1.1  jonathan 	 */
    867  1.34       bad 	if (npkts > sc->sc_maxaggr)
    868  1.34       bad 		npkts = sc->sc_maxaggr;
    869   1.1  jonathan 	if (npkts > ubsec_maxaggr)
    870   1.1  jonathan 		npkts = ubsec_maxaggr;
    871   1.1  jonathan 	if (npkts > ubsecstats.hst_maxbatch)
    872   1.1  jonathan 		ubsecstats.hst_maxbatch = npkts;
    873   1.1  jonathan 	if (npkts < 2)
    874   1.1  jonathan 		goto feed1;
    875   1.1  jonathan 	ubsecstats.hst_totbatch += npkts-1;
    876   1.1  jonathan 
    877   1.1  jonathan 	if ((stat = READ_REG(sc, BS_STAT)) & (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) {
    878   1.1  jonathan 		if (stat & BS_STAT_DMAERR) {
    879   1.1  jonathan 			ubsec_totalreset(sc);
    880   1.1  jonathan 			ubsecstats.hst_dmaerr++;
    881   1.1  jonathan 		} else {
    882   1.1  jonathan 			ubsecstats.hst_mcr1full++;
    883   1.1  jonathan 		}
    884   1.1  jonathan 		return;
    885   1.1  jonathan 	}
    886   1.1  jonathan 
    887   1.1  jonathan #ifdef UBSEC_DEBUG
    888   1.1  jonathan 	if (ubsec_debug)
    889   1.1  jonathan 	    printf("merging %d records\n", npkts);
    890   1.1  jonathan 	/* XXX temporary aggregation statistics reporting code */
    891   1.1  jonathan 	if (max < npkts) {
    892   1.1  jonathan 		max = npkts;
    893  1.28       chs 		printf("%s: new max aggregate %d\n", device_xname(sc->sc_dev), max);
    894   1.1  jonathan 	}
    895   1.1  jonathan #endif /* UBSEC_DEBUG */
    896   1.1  jonathan 
    897   1.1  jonathan 	q = SIMPLEQ_FIRST(&sc->sc_queue);
    898   1.1  jonathan 	SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, /*q,*/ q_next);
    899   1.1  jonathan 	--sc->sc_nqueue;
    900   1.1  jonathan 
    901   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
    902   1.1  jonathan 	    0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
    903   1.1  jonathan 	if (q->q_dst_map != NULL)
    904   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
    905   1.1  jonathan 		    0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
    906   1.1  jonathan 
    907   1.1  jonathan 	q->q_nstacked_mcrs = npkts - 1;		/* Number of packets stacked */
    908   1.1  jonathan 
    909   1.1  jonathan 	for (i = 0; i < q->q_nstacked_mcrs; i++) {
    910   1.1  jonathan 		q2 = SIMPLEQ_FIRST(&sc->sc_queue);
    911   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q2->q_src_map,
    912   1.1  jonathan 		    0, q2->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
    913   1.1  jonathan 		if (q2->q_dst_map != NULL)
    914   1.1  jonathan 			bus_dmamap_sync(sc->sc_dmat, q2->q_dst_map,
    915   1.1  jonathan 			    0, q2->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
    916   1.1  jonathan 		q2= SIMPLEQ_FIRST(&sc->sc_queue);
    917   1.1  jonathan 		SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, /*q2,*/ q_next);
    918   1.1  jonathan 		--sc->sc_nqueue;
    919   1.1  jonathan 
    920   1.1  jonathan 		v = ((void *)&q2->q_dma->d_dma->d_mcr);
    921   1.1  jonathan 		v = (char*)v + (sizeof(struct ubsec_mcr) -
    922   1.1  jonathan 				 sizeof(struct ubsec_mcr_add));
    923  1.20   tsutsui 		memcpy(&q->q_dma->d_dma->d_mcradd[i], v, sizeof(struct ubsec_mcr_add));
    924   1.1  jonathan 		q->q_stacked_mcr[i] = q2;
    925   1.1  jonathan 	}
    926   1.1  jonathan 	q->q_dma->d_dma->d_mcr.mcr_pkts = htole16(npkts);
    927   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next);
    928   1.1  jonathan 	sc->sc_nqchip += npkts;
    929   1.1  jonathan 	if (sc->sc_nqchip > ubsecstats.hst_maxqchip)
    930   1.1  jonathan 		ubsecstats.hst_maxqchip = sc->sc_nqchip;
    931   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map,
    932   1.1  jonathan 	    0, q->q_dma->d_alloc.dma_map->dm_mapsize,
    933   1.1  jonathan 	    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
    934   1.1  jonathan 	WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr +
    935   1.1  jonathan 	    offsetof(struct ubsec_dmachunk, d_mcr));
    936   1.1  jonathan 	return;
    937   1.1  jonathan 
    938   1.1  jonathan feed1:
    939   1.1  jonathan 	while (!SIMPLEQ_EMPTY(&sc->sc_queue)) {
    940   1.1  jonathan 		if ((stat = READ_REG(sc, BS_STAT)) & (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) {
    941   1.1  jonathan 			if (stat & BS_STAT_DMAERR) {
    942   1.1  jonathan 				ubsec_totalreset(sc);
    943   1.1  jonathan 				ubsecstats.hst_dmaerr++;
    944   1.1  jonathan 			} else {
    945   1.1  jonathan 				ubsecstats.hst_mcr1full++;
    946   1.1  jonathan 			}
    947   1.1  jonathan 			break;
    948   1.1  jonathan 		}
    949   1.1  jonathan 
    950   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_queue);
    951   1.1  jonathan 
    952   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
    953   1.1  jonathan 		    0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
    954   1.1  jonathan 		if (q->q_dst_map != NULL)
    955   1.1  jonathan 			bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
    956   1.1  jonathan 			    0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
    957   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map,
    958   1.1  jonathan 		    0, q->q_dma->d_alloc.dma_map->dm_mapsize,
    959   1.1  jonathan 		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
    960   1.1  jonathan 
    961   1.1  jonathan 		WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr +
    962   1.1  jonathan 		    offsetof(struct ubsec_dmachunk, d_mcr));
    963   1.1  jonathan #ifdef UBSEC_DEBUG
    964   1.1  jonathan 		if (ubsec_debug)
    965   1.1  jonathan 			printf("feed: q->chip %p %08x stat %08x\n",
    966   1.1  jonathan  		    	       q, (u_int32_t)q->q_dma->d_alloc.dma_paddr,
    967   1.1  jonathan 			       stat);
    968   1.1  jonathan #endif /* UBSEC_DEBUG */
    969   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_queue);
    970   1.1  jonathan 		SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, /*q,*/ q_next);
    971   1.1  jonathan 		--sc->sc_nqueue;
    972   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next);
    973   1.1  jonathan 		sc->sc_nqchip++;
    974   1.1  jonathan 	}
    975   1.1  jonathan 	if (sc->sc_nqchip > ubsecstats.hst_maxqchip)
    976   1.1  jonathan 		ubsecstats.hst_maxqchip = sc->sc_nqchip;
    977   1.1  jonathan }
    978   1.1  jonathan 
    979   1.1  jonathan /*
    980   1.1  jonathan  * Allocate a new 'session' and return an encoded session id.  'sidp'
    981   1.1  jonathan  * contains our registration id, and should contain an encoded session
    982   1.1  jonathan  * id on successful allocation.
    983   1.1  jonathan  */
    984   1.1  jonathan static int
    985   1.1  jonathan ubsec_newsession(void *arg, u_int32_t *sidp, struct cryptoini *cri)
    986   1.1  jonathan {
    987   1.1  jonathan 	struct cryptoini *c, *encini = NULL, *macini = NULL;
    988   1.1  jonathan 	struct ubsec_softc *sc;
    989   1.1  jonathan 	struct ubsec_session *ses = NULL;
    990   1.1  jonathan 	MD5_CTX md5ctx;
    991   1.1  jonathan 	SHA1_CTX sha1ctx;
    992   1.1  jonathan 	int i, sesn;
    993   1.1  jonathan 
    994   1.2  jonathan 	sc = arg;
    995   1.2  jonathan 	KASSERT(sc != NULL /*, ("ubsec_newsession: null softc")*/);
    996   1.2  jonathan 
    997   1.1  jonathan 	if (sidp == NULL || cri == NULL || sc == NULL)
    998   1.1  jonathan 		return (EINVAL);
    999   1.1  jonathan 
   1000   1.1  jonathan 	for (c = cri; c != NULL; c = c->cri_next) {
   1001  1.15       tls 		if (c->cri_alg == CRYPTO_MD5_HMAC_96 ||
   1002  1.15       tls 		    c->cri_alg == CRYPTO_SHA1_HMAC_96) {
   1003   1.1  jonathan 			if (macini)
   1004   1.1  jonathan 				return (EINVAL);
   1005   1.1  jonathan 			macini = c;
   1006   1.1  jonathan 		} else if (c->cri_alg == CRYPTO_DES_CBC ||
   1007  1.40       bad 		    c->cri_alg == CRYPTO_3DES_CBC ||
   1008  1.40       bad 		    c->cri_alg == CRYPTO_AES_CBC) {
   1009   1.1  jonathan 			if (encini)
   1010   1.1  jonathan 				return (EINVAL);
   1011   1.1  jonathan 			encini = c;
   1012   1.1  jonathan 		} else
   1013   1.1  jonathan 			return (EINVAL);
   1014   1.1  jonathan 	}
   1015   1.1  jonathan 	if (encini == NULL && macini == NULL)
   1016   1.1  jonathan 		return (EINVAL);
   1017   1.1  jonathan 
   1018  1.40       bad 	if (encini && encini->cri_alg == CRYPTO_AES_CBC) {
   1019  1.40       bad 		switch (encini->cri_klen) {
   1020  1.40       bad 		case 128:
   1021  1.40       bad 		case 192:
   1022  1.40       bad 		case 256:
   1023  1.40       bad 			break;
   1024  1.40       bad 		default:
   1025  1.40       bad 			return (EINVAL);
   1026  1.40       bad 		}
   1027  1.40       bad 	}
   1028  1.40       bad 
   1029   1.1  jonathan 	if (sc->sc_sessions == NULL) {
   1030   1.1  jonathan 		ses = sc->sc_sessions = (struct ubsec_session *)malloc(
   1031   1.1  jonathan 		    sizeof(struct ubsec_session), M_DEVBUF, M_NOWAIT);
   1032   1.1  jonathan 		if (ses == NULL)
   1033   1.1  jonathan 			return (ENOMEM);
   1034   1.1  jonathan 		sesn = 0;
   1035   1.1  jonathan 		sc->sc_nsessions = 1;
   1036   1.1  jonathan 	} else {
   1037   1.1  jonathan 		for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
   1038   1.1  jonathan 			if (sc->sc_sessions[sesn].ses_used == 0) {
   1039   1.1  jonathan 				ses = &sc->sc_sessions[sesn];
   1040   1.1  jonathan 				break;
   1041   1.1  jonathan 			}
   1042   1.1  jonathan 		}
   1043   1.1  jonathan 
   1044   1.1  jonathan 		if (ses == NULL) {
   1045   1.1  jonathan 			sesn = sc->sc_nsessions;
   1046   1.1  jonathan 			ses = (struct ubsec_session *)malloc((sesn + 1) *
   1047   1.1  jonathan 			    sizeof(struct ubsec_session), M_DEVBUF, M_NOWAIT);
   1048   1.1  jonathan 			if (ses == NULL)
   1049   1.1  jonathan 				return (ENOMEM);
   1050  1.20   tsutsui 			memcpy(ses, sc->sc_sessions, sesn *
   1051   1.1  jonathan 			    sizeof(struct ubsec_session));
   1052  1.18    cegger 			memset(sc->sc_sessions, 0, sesn *
   1053   1.1  jonathan 			    sizeof(struct ubsec_session));
   1054   1.1  jonathan 			free(sc->sc_sessions, M_DEVBUF);
   1055   1.1  jonathan 			sc->sc_sessions = ses;
   1056   1.1  jonathan 			ses = &sc->sc_sessions[sesn];
   1057   1.1  jonathan 			sc->sc_nsessions++;
   1058   1.1  jonathan 		}
   1059   1.1  jonathan 	}
   1060   1.1  jonathan 
   1061  1.18    cegger 	memset(ses, 0, sizeof(struct ubsec_session));
   1062   1.1  jonathan 	ses->ses_used = 1;
   1063   1.1  jonathan 	if (encini) {
   1064   1.1  jonathan 		/* get an IV, network byte order */
   1065   1.1  jonathan #ifdef __NetBSD__
   1066  1.26       tls 		cprng_fast(ses->ses_iv, sizeof(ses->ses_iv));
   1067   1.1  jonathan #else
   1068   1.1  jonathan 		get_random_bytes(ses->ses_iv, sizeof(ses->ses_iv));
   1069   1.1  jonathan #endif
   1070   1.1  jonathan 
   1071   1.1  jonathan 		/* Go ahead and compute key in ubsec's byte order */
   1072  1.40       bad 		if (encini->cri_alg == CRYPTO_AES_CBC) {
   1073  1.40       bad 			memcpy(ses->ses_key, encini->cri_key,
   1074  1.40       bad 			    encini->cri_klen / 8);
   1075  1.40       bad 		}
   1076   1.1  jonathan 		if (encini->cri_alg == CRYPTO_DES_CBC) {
   1077  1.40       bad 			memcpy(&ses->ses_key[0], encini->cri_key, 8);
   1078  1.40       bad 			memcpy(&ses->ses_key[2], encini->cri_key, 8);
   1079  1.40       bad 			memcpy(&ses->ses_key[4], encini->cri_key, 8);
   1080   1.1  jonathan 		} else
   1081  1.40       bad 			memcpy(ses->ses_key, encini->cri_key, 24);
   1082   1.1  jonathan 
   1083  1.40       bad 		SWAP32(ses->ses_key[0]);
   1084  1.40       bad 		SWAP32(ses->ses_key[1]);
   1085  1.40       bad 		SWAP32(ses->ses_key[2]);
   1086  1.40       bad 		SWAP32(ses->ses_key[3]);
   1087  1.40       bad 		SWAP32(ses->ses_key[4]);
   1088  1.40       bad 		SWAP32(ses->ses_key[5]);
   1089   1.1  jonathan 	}
   1090   1.1  jonathan 
   1091   1.1  jonathan 	if (macini) {
   1092   1.1  jonathan 		for (i = 0; i < macini->cri_klen / 8; i++)
   1093   1.1  jonathan 			macini->cri_key[i] ^= HMAC_IPAD_VAL;
   1094   1.1  jonathan 
   1095  1.15       tls 		if (macini->cri_alg == CRYPTO_MD5_HMAC_96) {
   1096   1.1  jonathan 			MD5Init(&md5ctx);
   1097   1.1  jonathan 			MD5Update(&md5ctx, macini->cri_key,
   1098   1.1  jonathan 			    macini->cri_klen / 8);
   1099   1.1  jonathan 			MD5Update(&md5ctx, hmac_ipad_buffer,
   1100   1.1  jonathan 			    HMAC_BLOCK_LEN - (macini->cri_klen / 8));
   1101  1.20   tsutsui 			memcpy(ses->ses_hminner, md5ctx.state,
   1102   1.1  jonathan 			    sizeof(md5ctx.state));
   1103   1.1  jonathan 		} else {
   1104   1.1  jonathan 			SHA1Init(&sha1ctx);
   1105   1.1  jonathan 			SHA1Update(&sha1ctx, macini->cri_key,
   1106   1.1  jonathan 			    macini->cri_klen / 8);
   1107   1.1  jonathan 			SHA1Update(&sha1ctx, hmac_ipad_buffer,
   1108   1.1  jonathan 			    HMAC_BLOCK_LEN - (macini->cri_klen / 8));
   1109  1.20   tsutsui 			memcpy(ses->ses_hminner, sha1ctx.state,
   1110   1.1  jonathan 			    sizeof(sha1ctx.state));
   1111   1.1  jonathan 		}
   1112   1.1  jonathan 
   1113   1.1  jonathan 		for (i = 0; i < macini->cri_klen / 8; i++)
   1114   1.1  jonathan 			macini->cri_key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
   1115   1.1  jonathan 
   1116  1.15       tls 		if (macini->cri_alg == CRYPTO_MD5_HMAC_96) {
   1117   1.1  jonathan 			MD5Init(&md5ctx);
   1118   1.1  jonathan 			MD5Update(&md5ctx, macini->cri_key,
   1119   1.1  jonathan 			    macini->cri_klen / 8);
   1120   1.1  jonathan 			MD5Update(&md5ctx, hmac_opad_buffer,
   1121   1.1  jonathan 			    HMAC_BLOCK_LEN - (macini->cri_klen / 8));
   1122  1.20   tsutsui 			memcpy(ses->ses_hmouter, md5ctx.state,
   1123   1.1  jonathan 			    sizeof(md5ctx.state));
   1124   1.1  jonathan 		} else {
   1125   1.1  jonathan 			SHA1Init(&sha1ctx);
   1126   1.1  jonathan 			SHA1Update(&sha1ctx, macini->cri_key,
   1127   1.1  jonathan 			    macini->cri_klen / 8);
   1128   1.1  jonathan 			SHA1Update(&sha1ctx, hmac_opad_buffer,
   1129   1.1  jonathan 			    HMAC_BLOCK_LEN - (macini->cri_klen / 8));
   1130  1.20   tsutsui 			memcpy(ses->ses_hmouter, sha1ctx.state,
   1131   1.1  jonathan 			    sizeof(sha1ctx.state));
   1132   1.1  jonathan 		}
   1133   1.1  jonathan 
   1134   1.1  jonathan 		for (i = 0; i < macini->cri_klen / 8; i++)
   1135   1.1  jonathan 			macini->cri_key[i] ^= HMAC_OPAD_VAL;
   1136   1.1  jonathan 	}
   1137   1.1  jonathan 
   1138  1.28       chs 	*sidp = UBSEC_SID(device_unit(sc->sc_dev), sesn);
   1139   1.1  jonathan 	return (0);
   1140   1.1  jonathan }
   1141   1.1  jonathan 
   1142   1.1  jonathan /*
   1143   1.1  jonathan  * Deallocate a session.
   1144   1.1  jonathan  */
   1145   1.1  jonathan static int
   1146   1.1  jonathan ubsec_freesession(void *arg, u_int64_t tid)
   1147   1.1  jonathan {
   1148   1.1  jonathan 	struct ubsec_softc *sc;
   1149   1.1  jonathan 	int session;
   1150   1.1  jonathan 	u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
   1151   1.1  jonathan 
   1152   1.1  jonathan 	sc = arg;
   1153   1.1  jonathan 	KASSERT(sc != NULL /*, ("ubsec_freesession: null softc")*/);
   1154   1.1  jonathan 
   1155   1.1  jonathan 	session = UBSEC_SESSION(sid);
   1156   1.1  jonathan 	if (session >= sc->sc_nsessions)
   1157   1.1  jonathan 		return (EINVAL);
   1158   1.1  jonathan 
   1159  1.18    cegger 	memset(&sc->sc_sessions[session], 0, sizeof(sc->sc_sessions[session]));
   1160   1.1  jonathan 	return (0);
   1161   1.1  jonathan }
   1162   1.1  jonathan 
   1163   1.1  jonathan #ifdef __FreeBSD__ /* Ugly gratuitous changes to bus_dma */
   1164   1.1  jonathan static void
   1165   1.1  jonathan ubsec_op_cb(void *arg, bus_dma_segment_t *seg, int nsegs, bus_size_t mapsize, int error)
   1166   1.1  jonathan {
   1167   1.1  jonathan 	struct ubsec_operand *op = arg;
   1168   1.1  jonathan 
   1169   1.5     perry 	KASSERT(nsegs <= UBS_MAX_SCATTER
   1170   1.1  jonathan 		/*, ("Too many DMA segments returned when mapping operand")*/);
   1171   1.1  jonathan #ifdef UBSEC_DEBUG
   1172   1.1  jonathan 	if (ubsec_debug)
   1173   1.1  jonathan 		printf("ubsec_op_cb: mapsize %u nsegs %d\n",
   1174   1.1  jonathan 			(u_int) mapsize, nsegs);
   1175   1.1  jonathan #endif
   1176   1.1  jonathan 	op->mapsize = mapsize;
   1177   1.1  jonathan 	op->nsegs = nsegs;
   1178  1.20   tsutsui 	memcpy(op->segs, seg, nsegs * sizeof (seg[0]));
   1179   1.1  jonathan }
   1180   1.1  jonathan #endif
   1181   1.1  jonathan 
   1182   1.1  jonathan static int
   1183   1.1  jonathan ubsec_process(void *arg, struct cryptop *crp, int hint)
   1184   1.1  jonathan {
   1185   1.1  jonathan 	struct ubsec_q *q = NULL;
   1186   1.1  jonathan #ifdef	__OpenBSD__
   1187   1.1  jonathan 	int card;
   1188   1.1  jonathan #endif
   1189  1.29       tls 	int err = 0, i, j, nicealign;
   1190   1.1  jonathan 	struct ubsec_softc *sc;
   1191   1.1  jonathan 	struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
   1192   1.1  jonathan 	int encoffset = 0, macoffset = 0, cpskip, cpoffset;
   1193   1.1  jonathan 	int sskip, dskip, stheend, dtheend;
   1194   1.1  jonathan 	int16_t coffset;
   1195  1.40       bad 	struct ubsec_session *ses, key;
   1196   1.1  jonathan 	struct ubsec_dma *dmap = NULL;
   1197  1.40       bad 	u_int16_t flags = 0;
   1198  1.40       bad 	int ivlen = 0, keylen = 0;
   1199   1.1  jonathan 
   1200   1.2  jonathan 	sc = arg;
   1201   1.2  jonathan 	KASSERT(sc != NULL /*, ("ubsec_process: null softc")*/);
   1202   1.2  jonathan 
   1203   1.1  jonathan 	if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
   1204   1.1  jonathan 		ubsecstats.hst_invalid++;
   1205   1.1  jonathan 		return (EINVAL);
   1206   1.1  jonathan 	}
   1207   1.1  jonathan 	if (UBSEC_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
   1208   1.1  jonathan 		ubsecstats.hst_badsession++;
   1209   1.1  jonathan 		return (EINVAL);
   1210   1.1  jonathan 	}
   1211   1.1  jonathan 
   1212  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   1213   1.1  jonathan 
   1214   1.1  jonathan 	if (SIMPLEQ_EMPTY(&sc->sc_freequeue)) {
   1215   1.1  jonathan 		ubsecstats.hst_queuefull++;
   1216   1.1  jonathan 		sc->sc_needwakeup |= CRYPTO_SYMQ;
   1217  1.29       tls 		mutex_spin_exit(&sc->sc_mtx);
   1218   1.1  jonathan 		return(ERESTART);
   1219   1.1  jonathan 	}
   1220   1.1  jonathan 
   1221   1.1  jonathan 	q = SIMPLEQ_FIRST(&sc->sc_freequeue);
   1222   1.1  jonathan 	SIMPLEQ_REMOVE_HEAD(&sc->sc_freequeue, /*q,*/ q_next);
   1223  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   1224   1.1  jonathan 
   1225   1.1  jonathan 	dmap = q->q_dma; /* Save dma pointer */
   1226  1.39       bad 	/* don't lose the cached dmamaps q_src_map and q_cached_dst_map */
   1227  1.39       bad 	memset(q, 0, offsetof(struct ubsec_q, q_src_map));
   1228  1.40       bad 	memset(&key, 0, sizeof(key));
   1229   1.1  jonathan 
   1230   1.1  jonathan 	q->q_sesn = UBSEC_SESSION(crp->crp_sid);
   1231   1.1  jonathan 	q->q_dma = dmap;
   1232   1.1  jonathan 	ses = &sc->sc_sessions[q->q_sesn];
   1233   1.1  jonathan 
   1234   1.1  jonathan 	if (crp->crp_flags & CRYPTO_F_IMBUF) {
   1235   1.1  jonathan 		q->q_src_m = (struct mbuf *)crp->crp_buf;
   1236   1.1  jonathan 		q->q_dst_m = (struct mbuf *)crp->crp_buf;
   1237   1.1  jonathan 	} else if (crp->crp_flags & CRYPTO_F_IOV) {
   1238   1.1  jonathan 		q->q_src_io = (struct uio *)crp->crp_buf;
   1239   1.1  jonathan 		q->q_dst_io = (struct uio *)crp->crp_buf;
   1240   1.1  jonathan 	} else {
   1241   1.1  jonathan 		ubsecstats.hst_badflags++;
   1242   1.1  jonathan 		err = EINVAL;
   1243   1.1  jonathan 		goto errout;	/* XXX we don't handle contiguous blocks! */
   1244   1.1  jonathan 	}
   1245   1.1  jonathan 
   1246  1.18    cegger 	memset(&dmap->d_dma->d_mcr, 0, sizeof(struct ubsec_mcr));
   1247   1.1  jonathan 
   1248   1.1  jonathan 	dmap->d_dma->d_mcr.mcr_pkts = htole16(1);
   1249   1.1  jonathan 	dmap->d_dma->d_mcr.mcr_flags = 0;
   1250   1.1  jonathan 	q->q_crp = crp;
   1251   1.1  jonathan 
   1252   1.1  jonathan 	crd1 = crp->crp_desc;
   1253   1.1  jonathan 	if (crd1 == NULL) {
   1254   1.1  jonathan 		ubsecstats.hst_nodesc++;
   1255   1.1  jonathan 		err = EINVAL;
   1256   1.1  jonathan 		goto errout;
   1257   1.1  jonathan 	}
   1258   1.1  jonathan 	crd2 = crd1->crd_next;
   1259   1.1  jonathan 
   1260   1.1  jonathan 	if (crd2 == NULL) {
   1261  1.15       tls 		if (crd1->crd_alg == CRYPTO_MD5_HMAC_96 ||
   1262  1.15       tls 		    crd1->crd_alg == CRYPTO_SHA1_HMAC_96) {
   1263   1.1  jonathan 			maccrd = crd1;
   1264   1.1  jonathan 			enccrd = NULL;
   1265   1.1  jonathan 		} else if (crd1->crd_alg == CRYPTO_DES_CBC ||
   1266  1.40       bad 		    crd1->crd_alg == CRYPTO_3DES_CBC ||
   1267  1.40       bad 		    crd1->crd_alg == CRYPTO_AES_CBC) {
   1268   1.1  jonathan 			maccrd = NULL;
   1269   1.1  jonathan 			enccrd = crd1;
   1270   1.1  jonathan 		} else {
   1271   1.1  jonathan 			ubsecstats.hst_badalg++;
   1272   1.1  jonathan 			err = EINVAL;
   1273   1.1  jonathan 			goto errout;
   1274   1.1  jonathan 		}
   1275   1.1  jonathan 	} else {
   1276  1.15       tls 		if ((crd1->crd_alg == CRYPTO_MD5_HMAC_96 ||
   1277  1.15       tls 		    crd1->crd_alg == CRYPTO_SHA1_HMAC_96) &&
   1278   1.1  jonathan 		    (crd2->crd_alg == CRYPTO_DES_CBC ||
   1279  1.40       bad 		    crd2->crd_alg == CRYPTO_3DES_CBC ||
   1280  1.40       bad 		    crd2->crd_alg == CRYPTO_AES_CBC) &&
   1281   1.1  jonathan 		    ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
   1282   1.1  jonathan 			maccrd = crd1;
   1283   1.1  jonathan 			enccrd = crd2;
   1284   1.1  jonathan 		} else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
   1285  1.40       bad 		    crd1->crd_alg == CRYPTO_3DES_CBC ||
   1286  1.40       bad 		    crd1->crd_alg == CRYPTO_AES_CBC) &&
   1287  1.15       tls 		    (crd2->crd_alg == CRYPTO_MD5_HMAC_96 ||
   1288  1.40       bad 		    crd2->crd_alg == CRYPTO_SHA1_HMAC_96) &&
   1289   1.1  jonathan 		    (crd1->crd_flags & CRD_F_ENCRYPT)) {
   1290   1.1  jonathan 			enccrd = crd1;
   1291   1.1  jonathan 			maccrd = crd2;
   1292   1.1  jonathan 		} else {
   1293   1.1  jonathan 			/*
   1294   1.1  jonathan 			 * We cannot order the ubsec as requested
   1295   1.1  jonathan 			 */
   1296   1.1  jonathan 			ubsecstats.hst_badalg++;
   1297   1.1  jonathan 			err = EINVAL;
   1298   1.1  jonathan 			goto errout;
   1299   1.1  jonathan 		}
   1300   1.1  jonathan 	}
   1301   1.1  jonathan 
   1302   1.1  jonathan 	if (enccrd) {
   1303  1.40       bad 		if (enccrd->crd_alg == CRYPTO_AES_CBC) {
   1304  1.40       bad 			if ((sc->sc_flags & UBS_FLAGS_AES) == 0) {
   1305  1.40       bad 				/*
   1306  1.40       bad 				 * We cannot order the ubsec as requested
   1307  1.40       bad 				 */
   1308  1.40       bad 				ubsecstats.hst_badalg++;
   1309  1.40       bad 				err = EINVAL;
   1310  1.40       bad 				goto errout;
   1311  1.40       bad 			}
   1312  1.40       bad 			flags |= htole16(UBS_PKTCTX_ENC_AES);
   1313  1.40       bad 			switch (enccrd->crd_klen) {
   1314  1.40       bad 			case 128:
   1315  1.40       bad 			case 192:
   1316  1.40       bad 			case 256:
   1317  1.40       bad 				keylen = enccrd->crd_klen / 8;
   1318  1.40       bad 				break;
   1319  1.40       bad 			default:
   1320  1.40       bad 				err = EINVAL;
   1321  1.40       bad 				goto errout;
   1322  1.40       bad 			}
   1323  1.40       bad 			ivlen = 16;
   1324  1.40       bad 		} else {
   1325  1.40       bad 			flags |= htole16(UBS_PKTCTX_ENC_3DES);
   1326  1.40       bad 			ivlen = 8;
   1327  1.40       bad 			keylen = 24;
   1328  1.40       bad 		}
   1329  1.40       bad 
   1330   1.1  jonathan 		encoffset = enccrd->crd_skip;
   1331   1.1  jonathan 
   1332   1.1  jonathan 		if (enccrd->crd_flags & CRD_F_ENCRYPT) {
   1333   1.1  jonathan 			q->q_flags |= UBSEC_QFLAGS_COPYOUTIV;
   1334   1.1  jonathan 
   1335   1.1  jonathan 			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
   1336  1.40       bad 				memcpy(key.ses_iv, enccrd->crd_iv, ivlen);
   1337   1.1  jonathan 			else {
   1338  1.40       bad 				for (i = 0; i < (ivlen / 4); i++)
   1339  1.40       bad 					key.ses_iv[i] = ses->ses_iv[i];
   1340   1.1  jonathan 			}
   1341   1.1  jonathan 
   1342   1.1  jonathan 			if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
   1343   1.1  jonathan 				if (crp->crp_flags & CRYPTO_F_IMBUF)
   1344   1.1  jonathan 					m_copyback(q->q_src_m,
   1345   1.1  jonathan 					    enccrd->crd_inject,
   1346  1.40       bad 					    ivlen, (void *)key.ses_iv);
   1347   1.1  jonathan 				else if (crp->crp_flags & CRYPTO_F_IOV)
   1348   1.1  jonathan 					cuio_copyback(q->q_src_io,
   1349   1.1  jonathan 					    enccrd->crd_inject,
   1350  1.40       bad 					    ivlen, (void *)key.ses_iv);
   1351   1.1  jonathan 			}
   1352   1.1  jonathan 		} else {
   1353  1.40       bad 			flags |= htole16(UBS_PKTCTX_INBOUND);
   1354   1.1  jonathan 
   1355   1.1  jonathan 			if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
   1356  1.40       bad 				memcpy(key.ses_iv, enccrd->crd_iv, ivlen);
   1357   1.1  jonathan 			else if (crp->crp_flags & CRYPTO_F_IMBUF)
   1358   1.1  jonathan 				m_copydata(q->q_src_m, enccrd->crd_inject,
   1359  1.40       bad 				    ivlen, (void *)key.ses_iv);
   1360   1.1  jonathan 			else if (crp->crp_flags & CRYPTO_F_IOV)
   1361   1.1  jonathan 				cuio_copydata(q->q_src_io,
   1362   1.1  jonathan 				    enccrd->crd_inject, 8,
   1363  1.40       bad 				    (void *)key.ses_iv);
   1364   1.1  jonathan 		}
   1365   1.1  jonathan 
   1366  1.40       bad 		for (i = 0; i < (keylen / 4); i++)
   1367  1.40       bad 			key.ses_key[i] = ses->ses_key[i];
   1368  1.40       bad 		for (i = 0; i < (ivlen / 4); i++)
   1369  1.40       bad 			SWAP32(key.ses_iv[i]);
   1370   1.1  jonathan 	}
   1371   1.1  jonathan 
   1372   1.1  jonathan 	if (maccrd) {
   1373   1.1  jonathan 		macoffset = maccrd->crd_skip;
   1374   1.1  jonathan 
   1375  1.15       tls 		if (maccrd->crd_alg == CRYPTO_MD5_HMAC_96)
   1376  1.40       bad 			flags |= htole16(UBS_PKTCTX_AUTH_MD5);
   1377   1.1  jonathan 		else
   1378  1.40       bad 			flags |= htole16(UBS_PKTCTX_AUTH_SHA1);
   1379   1.1  jonathan 
   1380   1.1  jonathan 		for (i = 0; i < 5; i++) {
   1381  1.40       bad 			key.ses_hminner[i] = ses->ses_hminner[i];
   1382  1.40       bad 			key.ses_hmouter[i] = ses->ses_hmouter[i];
   1383   1.1  jonathan 
   1384  1.40       bad 			HTOLE32(key.ses_hminner[i]);
   1385  1.40       bad 			HTOLE32(key.ses_hmouter[i]);
   1386   1.1  jonathan 		}
   1387   1.1  jonathan 	}
   1388   1.1  jonathan 
   1389   1.1  jonathan 	if (enccrd && maccrd) {
   1390   1.1  jonathan 		/*
   1391   1.1  jonathan 		 * ubsec cannot handle packets where the end of encryption
   1392   1.1  jonathan 		 * and authentication are not the same, or where the
   1393   1.1  jonathan 		 * encrypted part begins before the authenticated part.
   1394   1.1  jonathan 		 */
   1395   1.1  jonathan 		if ((encoffset + enccrd->crd_len) !=
   1396   1.1  jonathan 		    (macoffset + maccrd->crd_len)) {
   1397   1.1  jonathan 			ubsecstats.hst_lenmismatch++;
   1398   1.1  jonathan 			err = EINVAL;
   1399   1.1  jonathan 			goto errout;
   1400   1.1  jonathan 		}
   1401   1.1  jonathan 		if (enccrd->crd_skip < maccrd->crd_skip) {
   1402   1.1  jonathan 			ubsecstats.hst_skipmismatch++;
   1403   1.1  jonathan 			err = EINVAL;
   1404   1.1  jonathan 			goto errout;
   1405   1.1  jonathan 		}
   1406   1.1  jonathan 		sskip = maccrd->crd_skip;
   1407   1.1  jonathan 		cpskip = dskip = enccrd->crd_skip;
   1408   1.1  jonathan 		stheend = maccrd->crd_len;
   1409   1.1  jonathan 		dtheend = enccrd->crd_len;
   1410   1.1  jonathan 		coffset = enccrd->crd_skip - maccrd->crd_skip;
   1411   1.1  jonathan 		cpoffset = cpskip + dtheend;
   1412   1.1  jonathan #ifdef UBSEC_DEBUG
   1413   1.1  jonathan 		if (ubsec_debug) {
   1414   1.1  jonathan 			printf("mac: skip %d, len %d, inject %d\n",
   1415   1.1  jonathan 			       maccrd->crd_skip, maccrd->crd_len, maccrd->crd_inject);
   1416   1.1  jonathan 			printf("enc: skip %d, len %d, inject %d\n",
   1417   1.1  jonathan 			       enccrd->crd_skip, enccrd->crd_len, enccrd->crd_inject);
   1418   1.1  jonathan 			printf("src: skip %d, len %d\n", sskip, stheend);
   1419   1.1  jonathan 			printf("dst: skip %d, len %d\n", dskip, dtheend);
   1420   1.1  jonathan 			printf("ubs: coffset %d, pktlen %d, cpskip %d, cpoffset %d\n",
   1421   1.1  jonathan 			       coffset, stheend, cpskip, cpoffset);
   1422   1.1  jonathan 		}
   1423   1.1  jonathan #endif
   1424   1.1  jonathan 	} else {
   1425   1.1  jonathan 		cpskip = dskip = sskip = macoffset + encoffset;
   1426   1.1  jonathan 		dtheend = stheend = (enccrd)?enccrd->crd_len:maccrd->crd_len;
   1427   1.1  jonathan 		cpoffset = cpskip + dtheend;
   1428   1.1  jonathan 		coffset = 0;
   1429   1.1  jonathan 	}
   1430   1.1  jonathan 
   1431  1.39       bad 	if (q->q_src_map == NULL) {
   1432  1.39       bad 		/* XXX FIXME: jonathan asks, what the heck's that 0xfff0?  */
   1433  1.39       bad 		if (bus_dmamap_create(sc->sc_dmat, 0xfff0, UBS_MAX_SCATTER,
   1434  1.39       bad 			0xfff0, 0, BUS_DMA_NOWAIT, &q->q_src_map) != 0) {
   1435  1.39       bad 			err = ENOMEM;
   1436  1.39       bad 			goto errout;
   1437  1.39       bad 		}
   1438   1.1  jonathan 	}
   1439   1.1  jonathan 	if (crp->crp_flags & CRYPTO_F_IMBUF) {
   1440   1.1  jonathan 		if (bus_dmamap_load_mbuf(sc->sc_dmat, q->q_src_map,
   1441   1.1  jonathan 		    q->q_src_m, BUS_DMA_NOWAIT) != 0) {
   1442   1.1  jonathan 			ubsecstats.hst_noload++;
   1443   1.1  jonathan 			err = ENOMEM;
   1444   1.1  jonathan 			goto errout;
   1445   1.1  jonathan 		}
   1446   1.1  jonathan 	} else if (crp->crp_flags & CRYPTO_F_IOV) {
   1447   1.1  jonathan 		if (bus_dmamap_load_uio(sc->sc_dmat, q->q_src_map,
   1448   1.1  jonathan 		    q->q_src_io, BUS_DMA_NOWAIT) != 0) {
   1449   1.1  jonathan 			ubsecstats.hst_noload++;
   1450   1.1  jonathan 			err = ENOMEM;
   1451   1.1  jonathan 			goto errout;
   1452   1.1  jonathan 		}
   1453   1.1  jonathan 	}
   1454   1.1  jonathan 	nicealign = ubsec_dmamap_aligned(q->q_src_map);
   1455   1.1  jonathan 
   1456   1.1  jonathan 	dmap->d_dma->d_mcr.mcr_pktlen = htole16(stheend);
   1457   1.1  jonathan 
   1458   1.1  jonathan #ifdef UBSEC_DEBUG
   1459   1.1  jonathan 	if (ubsec_debug)
   1460   1.1  jonathan 		printf("src skip: %d nicealign: %u\n", sskip, nicealign);
   1461   1.1  jonathan #endif
   1462   1.1  jonathan 	for (i = j = 0; i < q->q_src_map->dm_nsegs; i++) {
   1463   1.1  jonathan 		struct ubsec_pktbuf *pb;
   1464   1.1  jonathan 		bus_size_t packl = q->q_src_map->dm_segs[i].ds_len;
   1465   1.1  jonathan 		bus_addr_t packp = q->q_src_map->dm_segs[i].ds_addr;
   1466   1.1  jonathan 
   1467   1.1  jonathan 		if (sskip >= packl) {
   1468   1.1  jonathan 			sskip -= packl;
   1469   1.1  jonathan 			continue;
   1470   1.1  jonathan 		}
   1471   1.1  jonathan 
   1472   1.1  jonathan 		packl -= sskip;
   1473   1.1  jonathan 		packp += sskip;
   1474   1.1  jonathan 		sskip = 0;
   1475   1.1  jonathan 
   1476   1.1  jonathan 		if (packl > 0xfffc) {
   1477   1.1  jonathan 			err = EIO;
   1478   1.1  jonathan 			goto errout;
   1479   1.1  jonathan 		}
   1480   1.1  jonathan 
   1481   1.1  jonathan 		if (j == 0)
   1482   1.1  jonathan 			pb = &dmap->d_dma->d_mcr.mcr_ipktbuf;
   1483   1.1  jonathan 		else
   1484   1.1  jonathan 			pb = &dmap->d_dma->d_sbuf[j - 1];
   1485   1.1  jonathan 
   1486   1.1  jonathan 		pb->pb_addr = htole32(packp);
   1487   1.1  jonathan 
   1488   1.1  jonathan 		if (stheend) {
   1489   1.1  jonathan 			if (packl > stheend) {
   1490   1.1  jonathan 				pb->pb_len = htole32(stheend);
   1491   1.1  jonathan 				stheend = 0;
   1492   1.1  jonathan 			} else {
   1493   1.1  jonathan 				pb->pb_len = htole32(packl);
   1494   1.1  jonathan 				stheend -= packl;
   1495   1.1  jonathan 			}
   1496   1.1  jonathan 		} else
   1497   1.1  jonathan 			pb->pb_len = htole32(packl);
   1498   1.1  jonathan 
   1499   1.1  jonathan 		if ((i + 1) == q->q_src_map->dm_nsegs)
   1500   1.1  jonathan 			pb->pb_next = 0;
   1501   1.1  jonathan 		else
   1502   1.1  jonathan 			pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
   1503   1.1  jonathan 			    offsetof(struct ubsec_dmachunk, d_sbuf[j]));
   1504   1.1  jonathan 		j++;
   1505   1.1  jonathan 	}
   1506   1.1  jonathan 
   1507   1.1  jonathan 	if (enccrd == NULL && maccrd != NULL) {
   1508   1.1  jonathan 		dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr = 0;
   1509   1.1  jonathan 		dmap->d_dma->d_mcr.mcr_opktbuf.pb_len = 0;
   1510   1.1  jonathan 		dmap->d_dma->d_mcr.mcr_opktbuf.pb_next = htole32(dmap->d_alloc.dma_paddr +
   1511   1.1  jonathan 		    offsetof(struct ubsec_dmachunk, d_macbuf[0]));
   1512   1.1  jonathan #ifdef UBSEC_DEBUG
   1513   1.1  jonathan 		if (ubsec_debug)
   1514   1.1  jonathan 			printf("opkt: %x %x %x\n",
   1515   1.1  jonathan 	 		    dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr,
   1516   1.1  jonathan 	 		    dmap->d_dma->d_mcr.mcr_opktbuf.pb_len,
   1517   1.1  jonathan 	 		    dmap->d_dma->d_mcr.mcr_opktbuf.pb_next);
   1518   1.1  jonathan 
   1519   1.1  jonathan #endif
   1520   1.1  jonathan 	} else {
   1521   1.1  jonathan 		if (crp->crp_flags & CRYPTO_F_IOV) {
   1522   1.1  jonathan 			if (!nicealign) {
   1523   1.1  jonathan 				ubsecstats.hst_iovmisaligned++;
   1524   1.1  jonathan 				err = EINVAL;
   1525   1.1  jonathan 				goto errout;
   1526   1.1  jonathan 			}
   1527  1.39       bad 			if (q->q_dst_map == NULL) {
   1528  1.39       bad 				if (q->q_cached_dst_map == NULL) {
   1529  1.39       bad 					/* XXX: ``what the heck's that'' 0xfff0? */
   1530  1.39       bad 					if (bus_dmamap_create(sc->sc_dmat, 0xfff0,
   1531  1.39       bad 					    UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT,
   1532  1.39       bad 					    &q->q_cached_dst_map) != 0) {
   1533  1.39       bad 						ubsecstats.hst_nomap++;
   1534  1.39       bad 						err = ENOMEM;
   1535  1.39       bad 						goto errout;
   1536  1.39       bad 					}
   1537  1.39       bad 				}
   1538  1.39       bad 				q->q_dst_map = q->q_cached_dst_map;
   1539   1.1  jonathan 			}
   1540   1.1  jonathan 			if (bus_dmamap_load_uio(sc->sc_dmat, q->q_dst_map,
   1541   1.1  jonathan 			    q->q_dst_io, BUS_DMA_NOWAIT) != 0) {
   1542   1.1  jonathan 				ubsecstats.hst_noload++;
   1543   1.1  jonathan 				err = ENOMEM;
   1544   1.1  jonathan 				goto errout;
   1545   1.1  jonathan 			}
   1546   1.1  jonathan 		} else if (crp->crp_flags & CRYPTO_F_IMBUF) {
   1547   1.1  jonathan 			if (nicealign) {
   1548   1.1  jonathan 				q->q_dst_m = q->q_src_m;
   1549   1.1  jonathan 				q->q_dst_map = q->q_src_map;
   1550   1.1  jonathan 			} else {
   1551   1.1  jonathan 				int totlen, len;
   1552   1.1  jonathan 				struct mbuf *m, *top, **mp;
   1553   1.1  jonathan 
   1554   1.1  jonathan 				ubsecstats.hst_unaligned++;
   1555   1.1  jonathan 				totlen = q->q_src_map->dm_mapsize;
   1556   1.1  jonathan 				if (q->q_src_m->m_flags & M_PKTHDR) {
   1557   1.1  jonathan 					len = MHLEN;
   1558   1.1  jonathan 					MGETHDR(m, M_DONTWAIT, MT_DATA);
   1559   1.1  jonathan 					/*XXX FIXME: m_dup_pkthdr */
   1560   1.1  jonathan 					if (m && 1 /*!m_dup_pkthdr(m, q->q_src_m, M_DONTWAIT)*/) {
   1561   1.1  jonathan 						m_free(m);
   1562   1.1  jonathan 						m = NULL;
   1563   1.1  jonathan 					}
   1564   1.1  jonathan 				} else {
   1565   1.1  jonathan 					len = MLEN;
   1566   1.1  jonathan 					MGET(m, M_DONTWAIT, MT_DATA);
   1567   1.1  jonathan 				}
   1568   1.1  jonathan 				if (m == NULL) {
   1569   1.1  jonathan 					ubsecstats.hst_nombuf++;
   1570   1.1  jonathan 					err = sc->sc_nqueue ? ERESTART : ENOMEM;
   1571   1.1  jonathan 					goto errout;
   1572   1.1  jonathan 				}
   1573   1.1  jonathan 				if (len == MHLEN)
   1574   1.1  jonathan 				  /*XXX was M_DUP_PKTHDR*/
   1575   1.1  jonathan 				  M_COPY_PKTHDR(m, q->q_src_m);
   1576   1.1  jonathan 				if (totlen >= MINCLSIZE) {
   1577   1.1  jonathan 					MCLGET(m, M_DONTWAIT);
   1578   1.1  jonathan 					if ((m->m_flags & M_EXT) == 0) {
   1579   1.1  jonathan 						m_free(m);
   1580   1.1  jonathan 						ubsecstats.hst_nomcl++;
   1581   1.1  jonathan 						err = sc->sc_nqueue ? ERESTART : ENOMEM;
   1582   1.1  jonathan 						goto errout;
   1583   1.1  jonathan 					}
   1584   1.1  jonathan 					len = MCLBYTES;
   1585   1.1  jonathan 				}
   1586   1.1  jonathan 				m->m_len = len;
   1587   1.1  jonathan 				top = NULL;
   1588   1.1  jonathan 				mp = &top;
   1589   1.1  jonathan 
   1590   1.1  jonathan 				while (totlen > 0) {
   1591   1.1  jonathan 					if (top) {
   1592   1.1  jonathan 						MGET(m, M_DONTWAIT, MT_DATA);
   1593   1.1  jonathan 						if (m == NULL) {
   1594   1.1  jonathan 							m_freem(top);
   1595   1.1  jonathan 							ubsecstats.hst_nombuf++;
   1596   1.1  jonathan 							err = sc->sc_nqueue ? ERESTART : ENOMEM;
   1597   1.1  jonathan 							goto errout;
   1598   1.1  jonathan 						}
   1599   1.1  jonathan 						len = MLEN;
   1600   1.1  jonathan 					}
   1601   1.1  jonathan 					if (top && totlen >= MINCLSIZE) {
   1602   1.1  jonathan 						MCLGET(m, M_DONTWAIT);
   1603   1.1  jonathan 						if ((m->m_flags & M_EXT) == 0) {
   1604   1.1  jonathan 							*mp = m;
   1605   1.1  jonathan 							m_freem(top);
   1606   1.1  jonathan 							ubsecstats.hst_nomcl++;
   1607   1.1  jonathan 							err = sc->sc_nqueue ? ERESTART : ENOMEM;
   1608   1.1  jonathan 							goto errout;
   1609   1.1  jonathan 						}
   1610   1.1  jonathan 						len = MCLBYTES;
   1611   1.1  jonathan 					}
   1612   1.1  jonathan 					m->m_len = len = min(totlen, len);
   1613   1.1  jonathan 					totlen -= len;
   1614   1.1  jonathan 					*mp = m;
   1615   1.1  jonathan 					mp = &m->m_next;
   1616   1.1  jonathan 				}
   1617   1.1  jonathan 				q->q_dst_m = top;
   1618   1.1  jonathan 				ubsec_mcopy(q->q_src_m, q->q_dst_m,
   1619   1.1  jonathan 				    cpskip, cpoffset);
   1620  1.39       bad 				if (q->q_dst_map == NULL) {
   1621  1.39       bad 					if (q->q_cached_dst_map == NULL) {
   1622  1.39       bad 						/* XXX again, what the heck is that 0xfff0? */
   1623  1.39       bad 						if (bus_dmamap_create(sc->sc_dmat, 0xfff0,
   1624  1.39       bad 						    UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT,
   1625  1.39       bad 						    &q->q_cached_dst_map) != 0) {
   1626  1.39       bad 							ubsecstats.hst_nomap++;
   1627  1.39       bad 							err = ENOMEM;
   1628  1.39       bad 							goto errout;
   1629  1.39       bad 						}
   1630  1.39       bad 					}
   1631  1.39       bad 					q->q_dst_map = q->q_cached_dst_map;
   1632   1.1  jonathan 				}
   1633   1.1  jonathan 				if (bus_dmamap_load_mbuf(sc->sc_dmat,
   1634   1.1  jonathan 				    q->q_dst_map, q->q_dst_m,
   1635   1.1  jonathan 				    BUS_DMA_NOWAIT) != 0) {
   1636   1.1  jonathan 					ubsecstats.hst_noload++;
   1637   1.1  jonathan 					err = ENOMEM;
   1638   1.1  jonathan 					goto errout;
   1639   1.1  jonathan 				}
   1640   1.1  jonathan 			}
   1641   1.1  jonathan 		} else {
   1642   1.1  jonathan 			ubsecstats.hst_badflags++;
   1643   1.1  jonathan 			err = EINVAL;
   1644   1.1  jonathan 			goto errout;
   1645   1.1  jonathan 		}
   1646   1.1  jonathan 
   1647   1.1  jonathan #ifdef UBSEC_DEBUG
   1648   1.1  jonathan 		if (ubsec_debug)
   1649   1.1  jonathan 			printf("dst skip: %d\n", dskip);
   1650   1.1  jonathan #endif
   1651   1.1  jonathan 		for (i = j = 0; i < q->q_dst_map->dm_nsegs; i++) {
   1652   1.1  jonathan 			struct ubsec_pktbuf *pb;
   1653   1.1  jonathan 			bus_size_t packl = q->q_dst_map->dm_segs[i].ds_len;
   1654   1.1  jonathan 			bus_addr_t packp = q->q_dst_map->dm_segs[i].ds_addr;
   1655   1.1  jonathan 
   1656   1.1  jonathan 			if (dskip >= packl) {
   1657   1.1  jonathan 				dskip -= packl;
   1658   1.1  jonathan 				continue;
   1659   1.1  jonathan 			}
   1660   1.1  jonathan 
   1661   1.1  jonathan 			packl -= dskip;
   1662   1.1  jonathan 			packp += dskip;
   1663   1.1  jonathan 			dskip = 0;
   1664   1.1  jonathan 
   1665   1.1  jonathan 			if (packl > 0xfffc) {
   1666   1.1  jonathan 				err = EIO;
   1667   1.1  jonathan 				goto errout;
   1668   1.1  jonathan 			}
   1669   1.1  jonathan 
   1670   1.1  jonathan 			if (j == 0)
   1671   1.1  jonathan 				pb = &dmap->d_dma->d_mcr.mcr_opktbuf;
   1672   1.1  jonathan 			else
   1673   1.1  jonathan 				pb = &dmap->d_dma->d_dbuf[j - 1];
   1674   1.1  jonathan 
   1675   1.1  jonathan 			pb->pb_addr = htole32(packp);
   1676   1.1  jonathan 
   1677   1.1  jonathan 			if (dtheend) {
   1678   1.1  jonathan 				if (packl > dtheend) {
   1679   1.1  jonathan 					pb->pb_len = htole32(dtheend);
   1680   1.1  jonathan 					dtheend = 0;
   1681   1.1  jonathan 				} else {
   1682   1.1  jonathan 					pb->pb_len = htole32(packl);
   1683   1.1  jonathan 					dtheend -= packl;
   1684   1.1  jonathan 				}
   1685   1.1  jonathan 			} else
   1686   1.1  jonathan 				pb->pb_len = htole32(packl);
   1687   1.1  jonathan 
   1688   1.1  jonathan 			if ((i + 1) == q->q_dst_map->dm_nsegs) {
   1689   1.1  jonathan 				if (maccrd)
   1690   1.1  jonathan 					pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
   1691   1.1  jonathan 					    offsetof(struct ubsec_dmachunk, d_macbuf[0]));
   1692   1.1  jonathan 				else
   1693   1.1  jonathan 					pb->pb_next = 0;
   1694   1.1  jonathan 			} else
   1695   1.1  jonathan 				pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
   1696   1.1  jonathan 				    offsetof(struct ubsec_dmachunk, d_dbuf[j]));
   1697   1.1  jonathan 			j++;
   1698   1.1  jonathan 		}
   1699   1.1  jonathan 	}
   1700   1.1  jonathan 
   1701   1.1  jonathan 	dmap->d_dma->d_mcr.mcr_cmdctxp = htole32(dmap->d_alloc.dma_paddr +
   1702   1.1  jonathan 	    offsetof(struct ubsec_dmachunk, d_ctx));
   1703   1.1  jonathan 
   1704  1.40       bad 	if (enccrd && enccrd->crd_alg == CRYPTO_AES_CBC) {
   1705  1.40       bad 		struct ubsec_pktctx_aes128	*aes128;
   1706  1.40       bad 		struct ubsec_pktctx_aes192	*aes192;
   1707  1.40       bad 		struct ubsec_pktctx_aes256	*aes256;
   1708  1.40       bad 		struct ubsec_pktctx_hdr		*ph;
   1709  1.40       bad 		u_int8_t			*ctx;
   1710  1.40       bad 
   1711  1.40       bad 		ctx = (u_int8_t *)(dmap->d_alloc.dma_vaddr) +
   1712  1.40       bad 		    offsetof(struct ubsec_dmachunk, d_ctx);
   1713  1.40       bad 
   1714  1.40       bad 		ph = (struct ubsec_pktctx_hdr *)ctx;
   1715  1.40       bad 		ph->ph_type = htole16(UBS_PKTCTX_TYPE_IPSEC_AES);
   1716  1.40       bad 		ph->ph_flags = flags;
   1717  1.40       bad 		ph->ph_offset = htole16(coffset >> 2);
   1718  1.40       bad 
   1719  1.40       bad 		switch (enccrd->crd_klen) {
   1720  1.40       bad 		case 128:
   1721  1.40       bad 			aes128 = (struct ubsec_pktctx_aes128 *)ctx;
   1722  1.40       bad  			ph->ph_len = htole16(sizeof(*aes128));
   1723  1.40       bad 			ph->ph_flags |= htole16(UBS_PKTCTX_KEYSIZE_128);
   1724  1.40       bad 			for (i = 0; i < 4; i++)
   1725  1.40       bad 				aes128->pc_aeskey[i] = key.ses_key[i];
   1726  1.40       bad 			for (i = 0; i < 5; i++)
   1727  1.40       bad 				aes128->pc_hminner[i] = key.ses_hminner[i];
   1728  1.40       bad 			for (i = 0; i < 5; i++)
   1729  1.40       bad 				aes128->pc_hmouter[i] = key.ses_hmouter[i];
   1730  1.40       bad 			for (i = 0; i < 4; i++)
   1731  1.40       bad 				aes128->pc_iv[i] = key.ses_iv[i];
   1732  1.40       bad 			break;
   1733  1.40       bad 		case 192:
   1734  1.40       bad 			aes192 = (struct ubsec_pktctx_aes192 *)ctx;
   1735  1.40       bad 			ph->ph_len = htole16(sizeof(*aes192));
   1736  1.40       bad 			ph->ph_flags |= htole16(UBS_PKTCTX_KEYSIZE_192);
   1737  1.40       bad 			for (i = 0; i < 6; i++)
   1738  1.40       bad 				aes192->pc_aeskey[i] = key.ses_key[i];
   1739  1.40       bad 			for (i = 0; i < 5; i++)
   1740  1.40       bad 				aes192->pc_hminner[i] = key.ses_hminner[i];
   1741  1.40       bad 			for (i = 0; i < 5; i++)
   1742  1.40       bad 				aes192->pc_hmouter[i] = key.ses_hmouter[i];
   1743  1.40       bad 			for (i = 0; i < 4; i++)
   1744  1.40       bad 				aes192->pc_iv[i] = key.ses_iv[i];
   1745  1.40       bad 			break;
   1746  1.40       bad 		case 256:
   1747  1.40       bad 			aes256 = (struct ubsec_pktctx_aes256 *)ctx;
   1748  1.40       bad 			ph->ph_len = htole16(sizeof(*aes256));
   1749  1.40       bad 			ph->ph_flags |= htole16(UBS_PKTCTX_KEYSIZE_256);
   1750  1.40       bad 			for (i = 0; i < 8; i++)
   1751  1.40       bad 				aes256->pc_aeskey[i] = key.ses_key[i];
   1752  1.40       bad 			for (i = 0; i < 5; i++)
   1753  1.40       bad 				aes256->pc_hminner[i] = key.ses_hminner[i];
   1754  1.40       bad 			for (i = 0; i < 5; i++)
   1755  1.40       bad 				aes256->pc_hmouter[i] = key.ses_hmouter[i];
   1756  1.40       bad 			for (i = 0; i < 4; i++)
   1757  1.40       bad 				aes256->pc_iv[i] = key.ses_iv[i];
   1758  1.40       bad 			break;
   1759  1.40       bad 		}
   1760  1.40       bad 	} else if (sc->sc_flags & UBS_FLAGS_LONGCTX) {
   1761  1.40       bad 		struct ubsec_pktctx_3des	*ctx;
   1762  1.40       bad 		struct ubsec_pktctx_hdr		*ph;
   1763   1.1  jonathan 
   1764  1.40       bad 		ctx = (struct ubsec_pktctx_3des *)
   1765  1.40       bad 		    ((u_int8_t *)(dmap->d_alloc.dma_vaddr) +
   1766   1.1  jonathan 		    offsetof(struct ubsec_dmachunk, d_ctx));
   1767   1.5     perry 
   1768  1.40       bad 		ph = (struct ubsec_pktctx_hdr *)ctx;
   1769  1.40       bad 		ph->ph_len = htole16(sizeof(*ctx));
   1770  1.40       bad 		ph->ph_type = htole16(UBS_PKTCTX_TYPE_IPSEC_3DES);
   1771  1.40       bad 		ph->ph_flags = flags;
   1772  1.40       bad 		ph->ph_offset = htole16(coffset >> 2);
   1773  1.40       bad 
   1774   1.1  jonathan 		for (i = 0; i < 6; i++)
   1775  1.40       bad 			ctx->pc_deskey[i] = key.ses_key[i];
   1776   1.1  jonathan 		for (i = 0; i < 5; i++)
   1777  1.40       bad 			ctx->pc_hminner[i] = key.ses_hminner[i];
   1778   1.1  jonathan 		for (i = 0; i < 5; i++)
   1779  1.40       bad 			ctx->pc_hmouter[i] = key.ses_hmouter[i];
   1780  1.40       bad 		for (i = 0; i < 2; i++)
   1781  1.40       bad 			ctx->pc_iv[i] = key.ses_iv[i];
   1782  1.40       bad 	} else {
   1783  1.40       bad 		struct ubsec_pktctx *ctx = (struct ubsec_pktctx *)
   1784  1.40       bad 		    ((u_int8_t *)dmap->d_alloc.dma_vaddr +
   1785  1.40       bad 		    offsetof(struct ubsec_dmachunk, d_ctx));
   1786  1.40       bad 
   1787  1.40       bad 		ctx->pc_flags = flags;
   1788  1.40       bad 		ctx->pc_offset = htole16(coffset >> 2);
   1789  1.40       bad 		for (i = 0; i < 6; i++)
   1790  1.40       bad 			ctx->pc_deskey[i] = key.ses_key[i];
   1791  1.40       bad 		for (i = 0; i < 5; i++)
   1792  1.40       bad 			ctx->pc_hminner[i] = key.ses_hminner[i];
   1793  1.40       bad 		for (i = 0; i < 5; i++)
   1794  1.40       bad 			ctx->pc_hmouter[i] = key.ses_hmouter[i];
   1795  1.40       bad 		for (i = 0; i < 2; i++)
   1796  1.40       bad 			ctx->pc_iv[i] = key.ses_iv[i];
   1797  1.40       bad 	}
   1798   1.1  jonathan 
   1799  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   1800   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_queue, q, q_next);
   1801   1.1  jonathan 	sc->sc_nqueue++;
   1802   1.1  jonathan 	ubsecstats.hst_ipackets++;
   1803   1.1  jonathan 	ubsecstats.hst_ibytes += dmap->d_alloc.dma_map->dm_mapsize;
   1804   1.1  jonathan 	if ((hint & CRYPTO_HINT_MORE) == 0 || sc->sc_nqueue >= ubsec_maxbatch)
   1805   1.1  jonathan 		ubsec_feed(sc);
   1806  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   1807   1.1  jonathan 	return (0);
   1808   1.1  jonathan 
   1809   1.1  jonathan errout:
   1810   1.1  jonathan 	if (q != NULL) {
   1811   1.1  jonathan 		if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m))
   1812   1.1  jonathan 			m_freem(q->q_dst_m);
   1813   1.1  jonathan 
   1814   1.1  jonathan 		if (q->q_dst_map != NULL && q->q_dst_map != q->q_src_map) {
   1815   1.1  jonathan 			bus_dmamap_unload(sc->sc_dmat, q->q_dst_map);
   1816   1.1  jonathan 		}
   1817   1.1  jonathan 		if (q->q_src_map != NULL) {
   1818   1.1  jonathan 			bus_dmamap_unload(sc->sc_dmat, q->q_src_map);
   1819   1.1  jonathan 		}
   1820   1.1  jonathan 
   1821  1.29       tls 		mutex_spin_enter(&sc->sc_mtx);
   1822   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
   1823  1.29       tls 		mutex_spin_exit(&sc->sc_mtx);
   1824   1.1  jonathan 	}
   1825   1.1  jonathan #if 0 /* jonathan says: this openbsd code seems to be subsumed elsewhere */
   1826   1.1  jonathan 	if (err == EINVAL)
   1827   1.1  jonathan 		ubsecstats.hst_invalid++;
   1828   1.1  jonathan 	else
   1829   1.1  jonathan 		ubsecstats.hst_nomem++;
   1830   1.5     perry #endif
   1831   1.1  jonathan 	if (err != ERESTART) {
   1832   1.1  jonathan 		crp->crp_etype = err;
   1833   1.1  jonathan 		crypto_done(crp);
   1834   1.1  jonathan 	} else {
   1835   1.1  jonathan 		sc->sc_needwakeup |= CRYPTO_SYMQ;
   1836   1.1  jonathan 	}
   1837   1.1  jonathan 	return (err);
   1838   1.1  jonathan }
   1839   1.1  jonathan 
   1840   1.7   thorpej static void
   1841   1.7   thorpej ubsec_callback(struct ubsec_softc *sc, struct ubsec_q *q)
   1842   1.1  jonathan {
   1843   1.1  jonathan 	struct cryptop *crp = (struct cryptop *)q->q_crp;
   1844   1.1  jonathan 	struct cryptodesc *crd;
   1845   1.1  jonathan 	struct ubsec_dma *dmap = q->q_dma;
   1846   1.1  jonathan 
   1847   1.1  jonathan 	ubsecstats.hst_opackets++;
   1848   1.1  jonathan 	ubsecstats.hst_obytes += dmap->d_alloc.dma_size;
   1849   1.1  jonathan 
   1850   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, dmap->d_alloc.dma_map, 0,
   1851   1.1  jonathan 	    dmap->d_alloc.dma_map->dm_mapsize,
   1852   1.1  jonathan 	    BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
   1853   1.1  jonathan 	if (q->q_dst_map != NULL && q->q_dst_map != q->q_src_map) {
   1854   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
   1855   1.1  jonathan 		    0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
   1856   1.1  jonathan 		bus_dmamap_unload(sc->sc_dmat, q->q_dst_map);
   1857   1.1  jonathan 	}
   1858   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
   1859   1.1  jonathan 	    0, q->q_src_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   1860   1.1  jonathan 	bus_dmamap_unload(sc->sc_dmat, q->q_src_map);
   1861   1.1  jonathan 
   1862   1.1  jonathan 	if ((crp->crp_flags & CRYPTO_F_IMBUF) && (q->q_src_m != q->q_dst_m)) {
   1863   1.1  jonathan 		m_freem(q->q_src_m);
   1864  1.12  christos 		crp->crp_buf = (void *)q->q_dst_m;
   1865   1.1  jonathan 	}
   1866   1.1  jonathan 
   1867   1.1  jonathan 	/* copy out IV for future use */
   1868   1.1  jonathan 	if (q->q_flags & UBSEC_QFLAGS_COPYOUTIV) {
   1869   1.1  jonathan 		for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
   1870   1.1  jonathan 			if (crd->crd_alg != CRYPTO_DES_CBC &&
   1871  1.40       bad 			    crd->crd_alg != CRYPTO_3DES_CBC &&
   1872  1.40       bad 			    crd->crd_alg != CRYPTO_AES_CBC)
   1873   1.1  jonathan 				continue;
   1874   1.1  jonathan 			if (crp->crp_flags & CRYPTO_F_IMBUF)
   1875   1.1  jonathan 				m_copydata((struct mbuf *)crp->crp_buf,
   1876   1.1  jonathan 				    crd->crd_skip + crd->crd_len - 8, 8,
   1877  1.12  christos 				    (void *)sc->sc_sessions[q->q_sesn].ses_iv);
   1878   1.1  jonathan 			else if (crp->crp_flags & CRYPTO_F_IOV) {
   1879   1.1  jonathan 				cuio_copydata((struct uio *)crp->crp_buf,
   1880   1.1  jonathan 				    crd->crd_skip + crd->crd_len - 8, 8,
   1881  1.12  christos 				    (void *)sc->sc_sessions[q->q_sesn].ses_iv);
   1882   1.1  jonathan 			}
   1883   1.1  jonathan 			break;
   1884   1.1  jonathan 		}
   1885   1.1  jonathan 	}
   1886   1.1  jonathan 
   1887   1.1  jonathan 	for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
   1888  1.15       tls 		if (crd->crd_alg != CRYPTO_MD5_HMAC_96 &&
   1889  1.15       tls 		    crd->crd_alg != CRYPTO_SHA1_HMAC_96)
   1890   1.1  jonathan 			continue;
   1891   1.1  jonathan 		if (crp->crp_flags & CRYPTO_F_IMBUF)
   1892   1.1  jonathan 			m_copyback((struct mbuf *)crp->crp_buf,
   1893   1.1  jonathan 			    crd->crd_inject, 12,
   1894  1.12  christos 			    (void *)dmap->d_dma->d_macbuf);
   1895   1.1  jonathan 		else if (crp->crp_flags & CRYPTO_F_IOV && crp->crp_mac)
   1896  1.12  christos 			bcopy((void *)dmap->d_dma->d_macbuf,
   1897   1.1  jonathan 			    crp->crp_mac, 12);
   1898   1.1  jonathan 		break;
   1899   1.1  jonathan 	}
   1900   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
   1901   1.1  jonathan 	crypto_done(crp);
   1902   1.1  jonathan }
   1903   1.1  jonathan 
   1904   1.1  jonathan static void
   1905   1.1  jonathan ubsec_mcopy(struct mbuf *srcm, struct mbuf *dstm, int hoffset, int toffset)
   1906   1.1  jonathan {
   1907   1.1  jonathan 	int i, j, dlen, slen;
   1908  1.12  christos 	char *dptr, *sptr;
   1909   1.1  jonathan 
   1910   1.1  jonathan 	j = 0;
   1911   1.1  jonathan 	sptr = srcm->m_data;
   1912   1.1  jonathan 	slen = srcm->m_len;
   1913   1.1  jonathan 	dptr = dstm->m_data;
   1914   1.1  jonathan 	dlen = dstm->m_len;
   1915   1.1  jonathan 
   1916   1.1  jonathan 	while (1) {
   1917   1.1  jonathan 		for (i = 0; i < min(slen, dlen); i++) {
   1918   1.1  jonathan 			if (j < hoffset || j >= toffset)
   1919   1.1  jonathan 				*dptr++ = *sptr++;
   1920   1.1  jonathan 			slen--;
   1921   1.1  jonathan 			dlen--;
   1922   1.1  jonathan 			j++;
   1923   1.1  jonathan 		}
   1924   1.1  jonathan 		if (slen == 0) {
   1925   1.1  jonathan 			srcm = srcm->m_next;
   1926   1.1  jonathan 			if (srcm == NULL)
   1927   1.1  jonathan 				return;
   1928   1.1  jonathan 			sptr = srcm->m_data;
   1929   1.1  jonathan 			slen = srcm->m_len;
   1930   1.1  jonathan 		}
   1931   1.1  jonathan 		if (dlen == 0) {
   1932   1.1  jonathan 			dstm = dstm->m_next;
   1933   1.1  jonathan 			if (dstm == NULL)
   1934   1.1  jonathan 				return;
   1935   1.1  jonathan 			dptr = dstm->m_data;
   1936   1.1  jonathan 			dlen = dstm->m_len;
   1937   1.1  jonathan 		}
   1938   1.1  jonathan 	}
   1939   1.1  jonathan }
   1940   1.1  jonathan 
   1941   1.1  jonathan /*
   1942   1.1  jonathan  * feed the key generator, must be called at splnet() or higher.
   1943   1.1  jonathan  */
   1944   1.1  jonathan static void
   1945   1.1  jonathan ubsec_feed2(struct ubsec_softc *sc)
   1946   1.1  jonathan {
   1947   1.1  jonathan 	struct ubsec_q2 *q;
   1948   1.1  jonathan 
   1949   1.1  jonathan 	while (!SIMPLEQ_EMPTY(&sc->sc_queue2)) {
   1950   1.1  jonathan 		if (READ_REG(sc, BS_STAT) & BS_STAT_MCR2_FULL)
   1951   1.1  jonathan 			break;
   1952   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_queue2);
   1953   1.1  jonathan 
   1954   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_mcr.dma_map, 0,
   1955   1.1  jonathan 		    q->q_mcr.dma_map->dm_mapsize,
   1956   1.1  jonathan 		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1957   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, q->q_ctx.dma_map, 0,
   1958   1.1  jonathan 		    q->q_ctx.dma_map->dm_mapsize,
   1959   1.1  jonathan 		    BUS_DMASYNC_PREWRITE);
   1960   1.1  jonathan 
   1961   1.1  jonathan 		WRITE_REG(sc, BS_MCR2, q->q_mcr.dma_paddr);
   1962   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_queue2);
   1963   1.1  jonathan 		SIMPLEQ_REMOVE_HEAD(&sc->sc_queue2, /*q,*/ q_next);
   1964   1.1  jonathan 		--sc->sc_nqueue2;
   1965   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_qchip2, q, q_next);
   1966   1.1  jonathan 	}
   1967   1.1  jonathan }
   1968   1.1  jonathan 
   1969   1.1  jonathan /*
   1970  1.34       bad  * feed the RNG (used instead of ubsec_feed2() on 5827+ devices)
   1971  1.34       bad  */
   1972  1.34       bad void
   1973  1.34       bad ubsec_feed4(struct ubsec_softc *sc)
   1974  1.34       bad {
   1975  1.34       bad 	struct ubsec_q2 *q;
   1976  1.34       bad 
   1977  1.34       bad 	while (!SIMPLEQ_EMPTY(&sc->sc_queue4)) {
   1978  1.34       bad 		if (READ_REG(sc, BS_STAT) & BS_STAT_MCR4_FULL)
   1979  1.34       bad 			break;
   1980  1.34       bad 		q = SIMPLEQ_FIRST(&sc->sc_queue4);
   1981  1.34       bad 
   1982  1.34       bad 		bus_dmamap_sync(sc->sc_dmat, q->q_mcr.dma_map, 0,
   1983  1.34       bad 		    q->q_mcr.dma_map->dm_mapsize,
   1984  1.34       bad 		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
   1985  1.34       bad 		bus_dmamap_sync(sc->sc_dmat, q->q_ctx.dma_map, 0,
   1986  1.34       bad 		    q->q_ctx.dma_map->dm_mapsize,
   1987  1.34       bad 		    BUS_DMASYNC_PREWRITE);
   1988  1.34       bad 
   1989  1.34       bad 		WRITE_REG(sc, BS_MCR4, q->q_mcr.dma_paddr);
   1990  1.34       bad 		SIMPLEQ_REMOVE_HEAD(&sc->sc_queue4, q_next);
   1991  1.34       bad 		--sc->sc_nqueue4;
   1992  1.34       bad 		SIMPLEQ_INSERT_TAIL(&sc->sc_qchip4, q, q_next);
   1993  1.34       bad 	}
   1994  1.34       bad }
   1995  1.34       bad 
   1996  1.34       bad /*
   1997   1.1  jonathan  * Callback for handling random numbers
   1998   1.1  jonathan  */
   1999   1.1  jonathan static void
   2000   1.1  jonathan ubsec_callback2(struct ubsec_softc *sc, struct ubsec_q2 *q)
   2001   1.1  jonathan {
   2002   1.1  jonathan 	struct cryptkop *krp;
   2003   1.1  jonathan 	struct ubsec_ctx_keyop *ctx;
   2004   1.1  jonathan 
   2005   1.1  jonathan 	ctx = (struct ubsec_ctx_keyop *)q->q_ctx.dma_vaddr;
   2006   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, q->q_ctx.dma_map, 0,
   2007   1.1  jonathan 	    q->q_ctx.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2008   1.1  jonathan 
   2009   1.1  jonathan 	switch (q->q_type) {
   2010   1.1  jonathan #ifndef UBSEC_NO_RNG
   2011   1.1  jonathan 	case UBS_CTXOP_RNGSHA1:
   2012   1.1  jonathan 	case UBS_CTXOP_RNGBYPASS: {
   2013   1.1  jonathan 		struct ubsec_q2_rng *rng = (struct ubsec_q2_rng *)q;
   2014   1.1  jonathan 		u_int32_t *p;
   2015   1.1  jonathan 		int i;
   2016   1.1  jonathan 
   2017   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, rng->rng_buf.dma_map, 0,
   2018   1.1  jonathan 		    rng->rng_buf.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
   2019   1.1  jonathan 		p = (u_int32_t *)rng->rng_buf.dma_vaddr;
   2020   1.1  jonathan #ifndef __NetBSD__
   2021   1.1  jonathan 		for (i = 0; i < UBSEC_RNG_BUFSIZ; p++, i++)
   2022   1.1  jonathan 			add_true_randomness(letoh32(*p));
   2023   1.1  jonathan #else
   2024  1.29       tls 		i = UBSEC_RNG_BUFSIZ * sizeof(u_int32_t);
   2025  1.29       tls 		rnd_add_data(&sc->sc_rnd_source, (char *)p, i, i * NBBY);
   2026  1.29       tls 		sc->sc_rng_need -= i;
   2027  1.34       bad #endif
   2028  1.29       tls 		rng->rng_used = 0;
   2029   1.1  jonathan #ifdef __OpenBSD__
   2030   1.1  jonathan 		timeout_add(&sc->sc_rngto, sc->sc_rnghz);
   2031   1.1  jonathan #else
   2032  1.29       tls 		if (sc->sc_rng_need > 0) {
   2033  1.30       bad 			callout_schedule(&sc->sc_rngto, sc->sc_rnghz);
   2034  1.29       tls 		}
   2035   1.1  jonathan #endif
   2036   1.1  jonathan 		break;
   2037   1.1  jonathan 	}
   2038   1.1  jonathan #endif
   2039   1.1  jonathan 	case UBS_CTXOP_MODEXP: {
   2040   1.1  jonathan 		struct ubsec_q2_modexp *me = (struct ubsec_q2_modexp *)q;
   2041   1.1  jonathan 		u_int rlen, clen;
   2042   1.1  jonathan 
   2043   1.1  jonathan 		krp = me->me_krp;
   2044   1.1  jonathan 		rlen = (me->me_modbits + 7) / 8;
   2045   1.1  jonathan 		clen = (krp->krp_param[krp->krp_iparams].crp_nbits + 7) / 8;
   2046   1.1  jonathan 
   2047   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
   2048   1.1  jonathan 		    0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2049   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
   2050   1.1  jonathan 		    0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2051   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
   2052   1.1  jonathan 		    0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
   2053   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
   2054   1.1  jonathan 		    0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2055   1.1  jonathan 
   2056   1.1  jonathan 		if (clen < rlen)
   2057   1.1  jonathan 			krp->krp_status = E2BIG;
   2058   1.1  jonathan 		else {
   2059   1.1  jonathan 			if (sc->sc_flags & UBS_FLAGS_HWNORM) {
   2060  1.18    cegger 				memset(krp->krp_param[krp->krp_iparams].crp_p, 0,
   2061   1.1  jonathan 				    (krp->krp_param[krp->krp_iparams].crp_nbits
   2062   1.1  jonathan 					+ 7) / 8);
   2063   1.1  jonathan 				bcopy(me->me_C.dma_vaddr,
   2064   1.1  jonathan 				    krp->krp_param[krp->krp_iparams].crp_p,
   2065   1.1  jonathan 				    (me->me_modbits + 7) / 8);
   2066   1.1  jonathan 			} else
   2067   1.1  jonathan 				ubsec_kshift_l(me->me_shiftbits,
   2068   1.1  jonathan 				    me->me_C.dma_vaddr, me->me_normbits,
   2069   1.1  jonathan 				    krp->krp_param[krp->krp_iparams].crp_p,
   2070   1.1  jonathan 				    krp->krp_param[krp->krp_iparams].crp_nbits);
   2071   1.1  jonathan 		}
   2072   1.1  jonathan 
   2073   1.1  jonathan 		crypto_kdone(krp);
   2074   1.1  jonathan 
   2075   1.1  jonathan 		/* bzero all potentially sensitive data */
   2076  1.18    cegger 		memset(me->me_E.dma_vaddr, 0, me->me_E.dma_size);
   2077  1.18    cegger 		memset(me->me_M.dma_vaddr, 0, me->me_M.dma_size);
   2078  1.18    cegger 		memset(me->me_C.dma_vaddr, 0, me->me_C.dma_size);
   2079  1.18    cegger 		memset(me->me_q.q_ctx.dma_vaddr, 0, me->me_q.q_ctx.dma_size);
   2080   1.1  jonathan 
   2081   1.1  jonathan 		/* Can't free here, so put us on the free list. */
   2082   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_q2free, &me->me_q, q_next);
   2083   1.1  jonathan 		break;
   2084   1.1  jonathan 	}
   2085   1.1  jonathan 	case UBS_CTXOP_RSAPRIV: {
   2086   1.1  jonathan 		struct ubsec_q2_rsapriv *rp = (struct ubsec_q2_rsapriv *)q;
   2087   1.1  jonathan 		u_int len;
   2088   1.1  jonathan 
   2089   1.1  jonathan 		krp = rp->rpr_krp;
   2090   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgin.dma_map, 0,
   2091   1.1  jonathan 		    rp->rpr_msgin.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
   2092   1.1  jonathan 		bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgout.dma_map, 0,
   2093   1.1  jonathan 		    rp->rpr_msgout.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
   2094   1.1  jonathan 
   2095   1.1  jonathan 		len = (krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT].crp_nbits + 7) / 8;
   2096   1.1  jonathan 		bcopy(rp->rpr_msgout.dma_vaddr,
   2097   1.1  jonathan 		    krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT].crp_p, len);
   2098   1.1  jonathan 
   2099   1.1  jonathan 		crypto_kdone(krp);
   2100   1.1  jonathan 
   2101  1.18    cegger 		memset(rp->rpr_msgin.dma_vaddr, 0, rp->rpr_msgin.dma_size);
   2102  1.18    cegger 		memset(rp->rpr_msgout.dma_vaddr, 0, rp->rpr_msgout.dma_size);
   2103  1.18    cegger 		memset(rp->rpr_q.q_ctx.dma_vaddr, 0, rp->rpr_q.q_ctx.dma_size);
   2104   1.1  jonathan 
   2105   1.1  jonathan 		/* Can't free here, so put us on the free list. */
   2106   1.1  jonathan 		SIMPLEQ_INSERT_TAIL(&sc->sc_q2free, &rp->rpr_q, q_next);
   2107   1.1  jonathan 		break;
   2108   1.1  jonathan 	}
   2109   1.1  jonathan 	default:
   2110  1.28       chs 		printf("%s: unknown ctx op: %x\n", device_xname(sc->sc_dev),
   2111   1.1  jonathan 		    letoh16(ctx->ctx_op));
   2112   1.1  jonathan 		break;
   2113   1.1  jonathan 	}
   2114   1.1  jonathan }
   2115   1.1  jonathan 
   2116   1.1  jonathan #ifndef UBSEC_NO_RNG
   2117  1.29       tls 
   2118  1.29       tls static void
   2119  1.29       tls ubsec_rng_get(size_t bytes, void *vsc)
   2120  1.29       tls {
   2121  1.29       tls 	struct ubsec_softc *sc = vsc;
   2122  1.29       tls 
   2123  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   2124  1.29       tls 	sc->sc_rng_need = bytes;
   2125  1.29       tls 	ubsec_rng_locked(sc);
   2126  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   2127  1.29       tls 
   2128  1.29       tls }
   2129  1.29       tls 
   2130   1.1  jonathan static void
   2131   1.1  jonathan ubsec_rng(void *vsc)
   2132   1.1  jonathan {
   2133   1.1  jonathan 	struct ubsec_softc *sc = vsc;
   2134  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   2135  1.29       tls 	ubsec_rng_locked(sc);
   2136  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   2137  1.29       tls }
   2138  1.29       tls 
   2139  1.29       tls static void
   2140  1.29       tls ubsec_rng_locked(void *vsc)
   2141  1.29       tls {
   2142  1.29       tls 	struct ubsec_softc *sc = vsc;
   2143   1.1  jonathan 	struct ubsec_q2_rng *rng = &sc->sc_rng;
   2144   1.1  jonathan 	struct ubsec_mcr *mcr;
   2145   1.1  jonathan 	struct ubsec_ctx_rngbypass *ctx;
   2146  1.34       bad 	int *nqueue;
   2147   1.1  jonathan 
   2148  1.31       bad 	/* Caller is responsible to lock and release sc_mtx. */
   2149  1.31       bad 	KASSERT(mutex_owned(&sc->sc_mtx));
   2150  1.31       bad 
   2151   1.1  jonathan 	if (rng->rng_used) {
   2152   1.1  jonathan 		return;
   2153   1.1  jonathan 	}
   2154  1.29       tls 
   2155  1.29       tls 	if (sc->sc_rng_need < 1) {
   2156  1.29       tls 		callout_stop(&sc->sc_rngto);
   2157  1.29       tls 		return;
   2158  1.29       tls 	}
   2159  1.29       tls 
   2160  1.34       bad 	if (sc->sc_flags & UBS_FLAGS_RNG4)
   2161  1.34       bad 		nqueue = &sc->sc_nqueue4;
   2162  1.34       bad 	else
   2163  1.34       bad 		nqueue = &sc->sc_nqueue2;
   2164  1.34       bad 
   2165  1.34       bad 	(*nqueue)++;
   2166  1.34       bad 	if (*nqueue >= UBS_MAX_NQUEUE)
   2167  1.34       bad  		goto out;
   2168   1.1  jonathan 
   2169   1.1  jonathan 	mcr = (struct ubsec_mcr *)rng->rng_q.q_mcr.dma_vaddr;
   2170   1.1  jonathan 	ctx = (struct ubsec_ctx_rngbypass *)rng->rng_q.q_ctx.dma_vaddr;
   2171   1.1  jonathan 
   2172   1.1  jonathan 	mcr->mcr_pkts = htole16(1);
   2173   1.1  jonathan 	mcr->mcr_flags = 0;
   2174   1.1  jonathan 	mcr->mcr_cmdctxp = htole32(rng->rng_q.q_ctx.dma_paddr);
   2175   1.1  jonathan 	mcr->mcr_ipktbuf.pb_addr = mcr->mcr_ipktbuf.pb_next = 0;
   2176   1.1  jonathan 	mcr->mcr_ipktbuf.pb_len = 0;
   2177   1.1  jonathan 	mcr->mcr_reserved = mcr->mcr_pktlen = 0;
   2178   1.1  jonathan 	mcr->mcr_opktbuf.pb_addr = htole32(rng->rng_buf.dma_paddr);
   2179   1.1  jonathan 	mcr->mcr_opktbuf.pb_len = htole32(((sizeof(u_int32_t) * UBSEC_RNG_BUFSIZ)) &
   2180   1.1  jonathan 	    UBS_PKTBUF_LEN);
   2181   1.1  jonathan 	mcr->mcr_opktbuf.pb_next = 0;
   2182   1.1  jonathan 
   2183   1.1  jonathan 	ctx->rbp_len = htole16(sizeof(struct ubsec_ctx_rngbypass));
   2184   1.1  jonathan 	ctx->rbp_op = htole16(UBS_CTXOP_RNGSHA1);
   2185   1.1  jonathan 	rng->rng_q.q_type = UBS_CTXOP_RNGSHA1;
   2186   1.1  jonathan 
   2187   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, rng->rng_buf.dma_map, 0,
   2188   1.1  jonathan 	    rng->rng_buf.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
   2189   1.1  jonathan 
   2190  1.34       bad 	if (sc->sc_flags & UBS_FLAGS_RNG4) {
   2191  1.34       bad 		SIMPLEQ_INSERT_TAIL(&sc->sc_queue4, &rng->rng_q, q_next);
   2192  1.34       bad 		ubsec_feed4(sc);
   2193  1.34       bad 	} else {
   2194  1.34       bad 		SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &rng->rng_q, q_next);
   2195  1.34       bad 		ubsec_feed2(sc);
   2196  1.34       bad 	}
   2197   1.1  jonathan 	rng->rng_used = 1;
   2198   1.1  jonathan 	ubsecstats.hst_rng++;
   2199   1.1  jonathan 
   2200   1.1  jonathan 	return;
   2201   1.1  jonathan 
   2202   1.1  jonathan out:
   2203   1.1  jonathan 	/*
   2204   1.1  jonathan 	 * Something weird happened, generate our own call back.
   2205   1.1  jonathan 	 */
   2206  1.34       bad 	(*nqueue)--;
   2207   1.1  jonathan #ifdef __OpenBSD__
   2208   1.1  jonathan 	timeout_add(&sc->sc_rngto, sc->sc_rnghz);
   2209   1.1  jonathan #else
   2210  1.30       bad 	callout_schedule(&sc->sc_rngto, sc->sc_rnghz);
   2211   1.1  jonathan #endif
   2212   1.1  jonathan }
   2213   1.1  jonathan #endif /* UBSEC_NO_RNG */
   2214   1.1  jonathan 
   2215   1.1  jonathan static int
   2216   1.1  jonathan ubsec_dma_malloc(struct ubsec_softc *sc, bus_size_t size,
   2217   1.1  jonathan 		 struct ubsec_dma_alloc *dma,int mapflags)
   2218   1.1  jonathan {
   2219   1.1  jonathan 	int r;
   2220   1.1  jonathan 
   2221   1.1  jonathan 	if ((r = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0,
   2222   1.1  jonathan 	    &dma->dma_seg, 1, &dma->dma_nseg, BUS_DMA_NOWAIT)) != 0)
   2223   1.1  jonathan 		goto fail_0;
   2224   1.1  jonathan 
   2225   1.1  jonathan 	if ((r = bus_dmamem_map(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg,
   2226   1.1  jonathan 	    size, &dma->dma_vaddr, mapflags | BUS_DMA_NOWAIT)) != 0)
   2227   1.1  jonathan 		goto fail_1;
   2228   1.1  jonathan 
   2229   1.1  jonathan 	if ((r = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
   2230   1.1  jonathan 	    BUS_DMA_NOWAIT, &dma->dma_map)) != 0)
   2231   1.1  jonathan 		goto fail_2;
   2232   1.1  jonathan 
   2233   1.1  jonathan 	if ((r = bus_dmamap_load(sc->sc_dmat, dma->dma_map, dma->dma_vaddr,
   2234   1.1  jonathan 	    size, NULL, BUS_DMA_NOWAIT)) != 0)
   2235   1.1  jonathan 		goto fail_3;
   2236   1.1  jonathan 
   2237   1.1  jonathan 	dma->dma_paddr = dma->dma_map->dm_segs[0].ds_addr;
   2238   1.1  jonathan 	dma->dma_size = size;
   2239   1.1  jonathan 	return (0);
   2240   1.1  jonathan 
   2241   1.1  jonathan fail_3:
   2242   1.1  jonathan 	bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
   2243   1.1  jonathan fail_2:
   2244   1.1  jonathan 	bus_dmamem_unmap(sc->sc_dmat, dma->dma_vaddr, size);
   2245   1.1  jonathan fail_1:
   2246   1.1  jonathan 	bus_dmamem_free(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg);
   2247   1.1  jonathan fail_0:
   2248   1.1  jonathan 	dma->dma_map = NULL;
   2249   1.1  jonathan 	return (r);
   2250   1.1  jonathan }
   2251   1.1  jonathan 
   2252   1.1  jonathan static void
   2253   1.1  jonathan ubsec_dma_free(struct ubsec_softc *sc, struct ubsec_dma_alloc *dma)
   2254   1.1  jonathan {
   2255   1.1  jonathan 	bus_dmamap_unload(sc->sc_dmat, dma->dma_map);
   2256   1.1  jonathan 	bus_dmamem_unmap(sc->sc_dmat, dma->dma_vaddr, dma->dma_size);
   2257   1.1  jonathan 	bus_dmamem_free(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg);
   2258   1.1  jonathan 	bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
   2259   1.1  jonathan }
   2260   1.1  jonathan 
   2261   1.1  jonathan /*
   2262   1.1  jonathan  * Resets the board.  Values in the regesters are left as is
   2263   1.1  jonathan  * from the reset (i.e. initial values are assigned elsewhere).
   2264   1.1  jonathan  */
   2265   1.1  jonathan static void
   2266   1.1  jonathan ubsec_reset_board(struct ubsec_softc *sc)
   2267   1.1  jonathan {
   2268  1.34       bad 	volatile u_int32_t ctrl;
   2269  1.34       bad 
   2270  1.34       bad 	ctrl = READ_REG(sc, BS_CTRL);
   2271  1.34       bad 	ctrl |= BS_CTRL_RESET;
   2272  1.34       bad 	WRITE_REG(sc, BS_CTRL, ctrl);
   2273  1.34       bad 
   2274  1.34       bad 	/*
   2275  1.34       bad 	* Wait aprox. 30 PCI clocks = 900 ns = 0.9 us
   2276  1.34       bad 	*/
   2277  1.34       bad 	DELAY(10);
   2278   1.1  jonathan 
   2279  1.34       bad 	/* Enable RNG and interrupts on newer devices */
   2280  1.34       bad 	if (sc->sc_flags & UBS_FLAGS_MULTIMCR) {
   2281  1.34       bad #ifndef UBSEC_NO_RNG
   2282  1.34       bad 		WRITE_REG(sc, BS_CFG, BS_CFG_RNG);
   2283  1.34       bad #endif
   2284  1.34       bad 		WRITE_REG(sc, BS_INT, BS_INT_DMAINT);
   2285  1.34       bad 	}
   2286   1.1  jonathan }
   2287   1.1  jonathan 
   2288   1.1  jonathan /*
   2289   1.1  jonathan  * Init Broadcom registers
   2290   1.1  jonathan  */
   2291   1.1  jonathan static void
   2292   1.1  jonathan ubsec_init_board(struct ubsec_softc *sc)
   2293   1.1  jonathan {
   2294   1.1  jonathan 	u_int32_t ctrl;
   2295   1.1  jonathan 
   2296   1.1  jonathan 	ctrl = READ_REG(sc, BS_CTRL);
   2297   1.1  jonathan 	ctrl &= ~(BS_CTRL_BE32 | BS_CTRL_BE64);
   2298   1.1  jonathan 	ctrl |= BS_CTRL_LITTLE_ENDIAN | BS_CTRL_MCR1INT;
   2299   1.1  jonathan 
   2300   1.1  jonathan 	/*
   2301   1.1  jonathan 	 * XXX: Sam Leffler's code has (UBS_FLAGS_KEY|UBS_FLAGS_RNG)).
   2302   1.1  jonathan 	 * anyone got hw docs?
   2303   1.1  jonathan 	 */
   2304   1.1  jonathan 	if (sc->sc_flags & UBS_FLAGS_KEY)
   2305   1.1  jonathan 		ctrl |= BS_CTRL_MCR2INT;
   2306   1.1  jonathan 	else
   2307   1.1  jonathan 		ctrl &= ~BS_CTRL_MCR2INT;
   2308   1.1  jonathan 
   2309   1.1  jonathan 	if (sc->sc_flags & UBS_FLAGS_HWNORM)
   2310   1.1  jonathan 		ctrl &= ~BS_CTRL_SWNORM;
   2311   1.1  jonathan 
   2312  1.34       bad 	if (sc->sc_flags & UBS_FLAGS_MULTIMCR) {
   2313  1.34       bad 		ctrl |= BS_CTRL_BSIZE240;
   2314  1.34       bad 		ctrl &= ~BS_CTRL_MCR3INT; /* MCR3 is reserved for SSL */
   2315  1.34       bad 
   2316  1.34       bad 		if (sc->sc_flags & UBS_FLAGS_RNG4)
   2317  1.34       bad 			ctrl |= BS_CTRL_MCR4INT;
   2318  1.34       bad 		else
   2319  1.34       bad 			ctrl &= ~BS_CTRL_MCR4INT;
   2320  1.34       bad 	}
   2321  1.34       bad 
   2322   1.1  jonathan 	WRITE_REG(sc, BS_CTRL, ctrl);
   2323   1.1  jonathan }
   2324   1.1  jonathan 
   2325   1.1  jonathan /*
   2326   1.1  jonathan  * Init Broadcom PCI registers
   2327   1.1  jonathan  */
   2328   1.1  jonathan static void
   2329   1.7   thorpej ubsec_init_pciregs(struct pci_attach_args *pa)
   2330   1.1  jonathan {
   2331   1.1  jonathan 	pci_chipset_tag_t pc = pa->pa_pc;
   2332   1.1  jonathan 	u_int32_t misc;
   2333   1.1  jonathan 
   2334   1.1  jonathan 	/*
   2335   1.1  jonathan 	 * This will set the cache line size to 1, this will
   2336   1.1  jonathan 	 * force the BCM58xx chip just to do burst read/writes.
   2337   1.1  jonathan 	 * Cache line read/writes are to slow
   2338   1.1  jonathan 	 */
   2339   1.1  jonathan 	misc = pci_conf_read(pc, pa->pa_tag, PCI_BHLC_REG);
   2340   1.1  jonathan 	misc = (misc & ~(PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT))
   2341   1.1  jonathan 	    | ((UBS_DEF_CACHELINE & 0xff) << PCI_CACHELINE_SHIFT);
   2342   1.1  jonathan 	pci_conf_write(pc, pa->pa_tag, PCI_BHLC_REG, misc);
   2343   1.1  jonathan }
   2344   1.1  jonathan 
   2345   1.1  jonathan /*
   2346   1.1  jonathan  * Clean up after a chip crash.
   2347   1.1  jonathan  * It is assumed that the caller in splnet()
   2348   1.1  jonathan  */
   2349   1.1  jonathan static void
   2350   1.1  jonathan ubsec_cleanchip(struct ubsec_softc *sc)
   2351   1.1  jonathan {
   2352   1.1  jonathan 	struct ubsec_q *q;
   2353   1.1  jonathan 
   2354   1.1  jonathan 	while (!SIMPLEQ_EMPTY(&sc->sc_qchip)) {
   2355   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_qchip);
   2356   1.1  jonathan 		SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, /*q,*/ q_next);
   2357   1.1  jonathan 		ubsec_free_q(sc, q);
   2358   1.1  jonathan 	}
   2359   1.1  jonathan 	sc->sc_nqchip = 0;
   2360   1.1  jonathan }
   2361   1.1  jonathan 
   2362   1.1  jonathan /*
   2363   1.1  jonathan  * free a ubsec_q
   2364   1.1  jonathan  * It is assumed that the caller is within splnet()
   2365   1.1  jonathan  */
   2366   1.1  jonathan static int
   2367   1.1  jonathan ubsec_free_q(struct ubsec_softc *sc, struct ubsec_q *q)
   2368   1.1  jonathan {
   2369   1.1  jonathan 	struct ubsec_q *q2;
   2370   1.1  jonathan 	struct cryptop *crp;
   2371   1.1  jonathan 	int npkts;
   2372   1.1  jonathan 	int i;
   2373   1.1  jonathan 
   2374   1.1  jonathan 	npkts = q->q_nstacked_mcrs;
   2375   1.1  jonathan 
   2376   1.1  jonathan 	for (i = 0; i < npkts; i++) {
   2377   1.1  jonathan 		if(q->q_stacked_mcr[i]) {
   2378   1.1  jonathan 			q2 = q->q_stacked_mcr[i];
   2379   1.1  jonathan 
   2380   1.5     perry 			if ((q2->q_dst_m != NULL) && (q2->q_src_m != q2->q_dst_m))
   2381   1.1  jonathan 				m_freem(q2->q_dst_m);
   2382   1.1  jonathan 
   2383   1.1  jonathan 			crp = (struct cryptop *)q2->q_crp;
   2384   1.5     perry 
   2385   1.1  jonathan 			SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q2, q_next);
   2386   1.5     perry 
   2387   1.1  jonathan 			crp->crp_etype = EFAULT;
   2388   1.1  jonathan 			crypto_done(crp);
   2389   1.1  jonathan 		} else {
   2390   1.1  jonathan 			break;
   2391   1.1  jonathan 		}
   2392   1.1  jonathan 	}
   2393   1.1  jonathan 
   2394   1.1  jonathan 	/*
   2395   1.1  jonathan 	 * Free header MCR
   2396   1.1  jonathan 	 */
   2397   1.1  jonathan 	if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m))
   2398   1.1  jonathan 		m_freem(q->q_dst_m);
   2399   1.1  jonathan 
   2400   1.1  jonathan 	crp = (struct cryptop *)q->q_crp;
   2401   1.5     perry 
   2402   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
   2403   1.5     perry 
   2404   1.1  jonathan 	crp->crp_etype = EFAULT;
   2405   1.1  jonathan 	crypto_done(crp);
   2406   1.1  jonathan 	return(0);
   2407   1.1  jonathan }
   2408   1.1  jonathan 
   2409   1.1  jonathan /*
   2410   1.1  jonathan  * Routine to reset the chip and clean up.
   2411   1.1  jonathan  * It is assumed that the caller is in splnet()
   2412   1.1  jonathan  */
   2413   1.1  jonathan static void
   2414   1.1  jonathan ubsec_totalreset(struct ubsec_softc *sc)
   2415   1.1  jonathan {
   2416   1.1  jonathan 	ubsec_reset_board(sc);
   2417   1.1  jonathan 	ubsec_init_board(sc);
   2418   1.1  jonathan 	ubsec_cleanchip(sc);
   2419   1.1  jonathan }
   2420   1.1  jonathan 
   2421   1.1  jonathan static int
   2422   1.1  jonathan ubsec_dmamap_aligned(bus_dmamap_t map)
   2423   1.1  jonathan {
   2424   1.1  jonathan 	int i;
   2425   1.1  jonathan 
   2426   1.1  jonathan 	for (i = 0; i < map->dm_nsegs; i++) {
   2427   1.1  jonathan 		if (map->dm_segs[i].ds_addr & 3)
   2428   1.1  jonathan 			return (0);
   2429   1.1  jonathan 		if ((i != (map->dm_nsegs - 1)) &&
   2430   1.1  jonathan 		    (map->dm_segs[i].ds_len & 3))
   2431   1.1  jonathan 			return (0);
   2432   1.1  jonathan 	}
   2433   1.1  jonathan 	return (1);
   2434   1.1  jonathan }
   2435   1.1  jonathan 
   2436   1.1  jonathan #ifdef __OpenBSD__
   2437   1.1  jonathan struct ubsec_softc *
   2438   1.7   thorpej ubsec_kfind(struct cryptkop *krp)
   2439   1.1  jonathan {
   2440   1.1  jonathan 	struct ubsec_softc *sc;
   2441   1.1  jonathan 	int i;
   2442   1.1  jonathan 
   2443   1.1  jonathan 	for (i = 0; i < ubsec_cd.cd_ndevs; i++) {
   2444   1.1  jonathan 		sc = ubsec_cd.cd_devs[i];
   2445   1.1  jonathan 		if (sc == NULL)
   2446   1.1  jonathan 			continue;
   2447   1.1  jonathan 		if (sc->sc_cid == krp->krp_hid)
   2448   1.1  jonathan 			return (sc);
   2449   1.1  jonathan 	}
   2450   1.1  jonathan 	return (NULL);
   2451   1.1  jonathan }
   2452   1.1  jonathan #endif
   2453   1.1  jonathan 
   2454   1.1  jonathan static void
   2455   1.1  jonathan ubsec_kfree(struct ubsec_softc *sc, struct ubsec_q2 *q)
   2456   1.1  jonathan {
   2457   1.1  jonathan 	switch (q->q_type) {
   2458   1.1  jonathan 	case UBS_CTXOP_MODEXP: {
   2459   1.1  jonathan 		struct ubsec_q2_modexp *me = (struct ubsec_q2_modexp *)q;
   2460   1.1  jonathan 
   2461   1.1  jonathan 		ubsec_dma_free(sc, &me->me_q.q_mcr);
   2462   1.1  jonathan 		ubsec_dma_free(sc, &me->me_q.q_ctx);
   2463   1.1  jonathan 		ubsec_dma_free(sc, &me->me_M);
   2464   1.1  jonathan 		ubsec_dma_free(sc, &me->me_E);
   2465   1.1  jonathan 		ubsec_dma_free(sc, &me->me_C);
   2466   1.1  jonathan 		ubsec_dma_free(sc, &me->me_epb);
   2467   1.1  jonathan 		free(me, M_DEVBUF);
   2468   1.1  jonathan 		break;
   2469   1.1  jonathan 	}
   2470   1.1  jonathan 	case UBS_CTXOP_RSAPRIV: {
   2471   1.1  jonathan 		struct ubsec_q2_rsapriv *rp = (struct ubsec_q2_rsapriv *)q;
   2472   1.1  jonathan 
   2473   1.1  jonathan 		ubsec_dma_free(sc, &rp->rpr_q.q_mcr);
   2474   1.1  jonathan 		ubsec_dma_free(sc, &rp->rpr_q.q_ctx);
   2475   1.1  jonathan 		ubsec_dma_free(sc, &rp->rpr_msgin);
   2476   1.1  jonathan 		ubsec_dma_free(sc, &rp->rpr_msgout);
   2477   1.1  jonathan 		free(rp, M_DEVBUF);
   2478   1.1  jonathan 		break;
   2479   1.1  jonathan 	}
   2480   1.1  jonathan 	default:
   2481  1.28       chs 		printf("%s: invalid kfree 0x%x\n", device_xname(sc->sc_dev),
   2482   1.1  jonathan 		    q->q_type);
   2483   1.1  jonathan 		break;
   2484   1.1  jonathan 	}
   2485   1.1  jonathan }
   2486   1.1  jonathan 
   2487   1.1  jonathan static int
   2488   1.1  jonathan ubsec_kprocess(void *arg, struct cryptkop *krp, int hint)
   2489   1.1  jonathan {
   2490   1.1  jonathan 	struct ubsec_softc *sc;
   2491   1.1  jonathan 	int r;
   2492   1.1  jonathan 
   2493   1.1  jonathan 	if (krp == NULL || krp->krp_callback == NULL)
   2494   1.1  jonathan 		return (EINVAL);
   2495   1.1  jonathan #ifdef __OpenBSD__
   2496   1.1  jonathan 	if ((sc = ubsec_kfind(krp)) == NULL)
   2497   1.1  jonathan 		return (EINVAL);
   2498   1.1  jonathan #else
   2499   1.1  jonathan 	sc = arg;
   2500   1.1  jonathan 	KASSERT(sc != NULL /*, ("ubsec_kprocess: null softc")*/);
   2501   1.1  jonathan #endif
   2502   1.1  jonathan 
   2503   1.1  jonathan 	while (!SIMPLEQ_EMPTY(&sc->sc_q2free)) {
   2504   1.1  jonathan 		struct ubsec_q2 *q;
   2505   1.1  jonathan 
   2506   1.1  jonathan 		q = SIMPLEQ_FIRST(&sc->sc_q2free);
   2507   1.1  jonathan 		SIMPLEQ_REMOVE_HEAD(&sc->sc_q2free, /*q,*/ q_next);
   2508   1.1  jonathan 		ubsec_kfree(sc, q);
   2509   1.1  jonathan 	}
   2510   1.1  jonathan 
   2511   1.1  jonathan 	switch (krp->krp_op) {
   2512   1.1  jonathan 	case CRK_MOD_EXP:
   2513   1.1  jonathan 		if (sc->sc_flags & UBS_FLAGS_HWNORM)
   2514   1.1  jonathan 			r = ubsec_kprocess_modexp_hw(sc, krp, hint);
   2515   1.1  jonathan 		else
   2516   1.1  jonathan 			r = ubsec_kprocess_modexp_sw(sc, krp, hint);
   2517   1.1  jonathan 		break;
   2518   1.1  jonathan 	case CRK_MOD_EXP_CRT:
   2519   1.1  jonathan 		r = ubsec_kprocess_rsapriv(sc, krp, hint);
   2520   1.1  jonathan 		break;
   2521   1.1  jonathan 	default:
   2522   1.1  jonathan 		printf("%s: kprocess: invalid op 0x%x\n",
   2523  1.28       chs 		    device_xname(sc->sc_dev), krp->krp_op);
   2524   1.1  jonathan 		krp->krp_status = EOPNOTSUPP;
   2525   1.1  jonathan 		crypto_kdone(krp);
   2526   1.1  jonathan 		r = 0;
   2527   1.1  jonathan 	}
   2528   1.1  jonathan 	return (r);
   2529   1.1  jonathan }
   2530   1.1  jonathan 
   2531   1.1  jonathan /*
   2532   1.1  jonathan  * Start computation of cr[C] = (cr[M] ^ cr[E]) mod cr[N] (sw normalization)
   2533   1.1  jonathan  */
   2534   1.1  jonathan static int
   2535   1.1  jonathan ubsec_kprocess_modexp_sw(struct ubsec_softc *sc, struct cryptkop *krp,
   2536  1.11  christos 			 int hint)
   2537   1.1  jonathan {
   2538   1.1  jonathan 	struct ubsec_q2_modexp *me;
   2539   1.1  jonathan 	struct ubsec_mcr *mcr;
   2540   1.1  jonathan 	struct ubsec_ctx_modexp *ctx;
   2541   1.1  jonathan 	struct ubsec_pktbuf *epb;
   2542  1.29       tls 	int err = 0;
   2543   1.1  jonathan 	u_int nbits, normbits, mbits, shiftbits, ebits;
   2544   1.1  jonathan 
   2545   1.1  jonathan 	me = (struct ubsec_q2_modexp *)malloc(sizeof *me, M_DEVBUF, M_NOWAIT);
   2546   1.1  jonathan 	if (me == NULL) {
   2547   1.1  jonathan 		err = ENOMEM;
   2548   1.1  jonathan 		goto errout;
   2549   1.1  jonathan 	}
   2550  1.18    cegger 	memset(me, 0, sizeof *me);
   2551   1.1  jonathan 	me->me_krp = krp;
   2552   1.1  jonathan 	me->me_q.q_type = UBS_CTXOP_MODEXP;
   2553   1.1  jonathan 
   2554   1.1  jonathan 	nbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_N]);
   2555   1.1  jonathan 	if (nbits <= 512)
   2556   1.1  jonathan 		normbits = 512;
   2557   1.1  jonathan 	else if (nbits <= 768)
   2558   1.1  jonathan 		normbits = 768;
   2559   1.1  jonathan 	else if (nbits <= 1024)
   2560   1.1  jonathan 		normbits = 1024;
   2561   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 1536)
   2562   1.1  jonathan 		normbits = 1536;
   2563   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 2048)
   2564   1.1  jonathan 		normbits = 2048;
   2565   1.1  jonathan 	else {
   2566   1.1  jonathan 		err = E2BIG;
   2567   1.1  jonathan 		goto errout;
   2568   1.1  jonathan 	}
   2569   1.1  jonathan 
   2570   1.1  jonathan 	shiftbits = normbits - nbits;
   2571   1.1  jonathan 
   2572   1.1  jonathan 	me->me_modbits = nbits;
   2573   1.1  jonathan 	me->me_shiftbits = shiftbits;
   2574   1.1  jonathan 	me->me_normbits = normbits;
   2575   1.1  jonathan 
   2576   1.1  jonathan 	/* Sanity check: result bits must be >= true modulus bits. */
   2577   1.1  jonathan 	if (krp->krp_param[krp->krp_iparams].crp_nbits < nbits) {
   2578   1.1  jonathan 		err = ERANGE;
   2579   1.1  jonathan 		goto errout;
   2580   1.1  jonathan 	}
   2581   1.1  jonathan 
   2582   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
   2583   1.1  jonathan 	    &me->me_q.q_mcr, 0)) {
   2584   1.1  jonathan 		err = ENOMEM;
   2585   1.1  jonathan 		goto errout;
   2586   1.1  jonathan 	}
   2587   1.1  jonathan 	mcr = (struct ubsec_mcr *)me->me_q.q_mcr.dma_vaddr;
   2588   1.1  jonathan 
   2589   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_modexp),
   2590   1.1  jonathan 	    &me->me_q.q_ctx, 0)) {
   2591   1.1  jonathan 		err = ENOMEM;
   2592   1.1  jonathan 		goto errout;
   2593   1.1  jonathan 	}
   2594   1.1  jonathan 
   2595   1.1  jonathan 	mbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_M]);
   2596   1.1  jonathan 	if (mbits > nbits) {
   2597   1.1  jonathan 		err = E2BIG;
   2598   1.1  jonathan 		goto errout;
   2599   1.1  jonathan 	}
   2600   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_M, 0)) {
   2601   1.1  jonathan 		err = ENOMEM;
   2602   1.1  jonathan 		goto errout;
   2603   1.1  jonathan 	}
   2604   1.1  jonathan 	ubsec_kshift_r(shiftbits,
   2605   1.1  jonathan 	    krp->krp_param[UBS_MODEXP_PAR_M].crp_p, mbits,
   2606   1.1  jonathan 	    me->me_M.dma_vaddr, normbits);
   2607   1.1  jonathan 
   2608   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_C, 0)) {
   2609   1.1  jonathan 		err = ENOMEM;
   2610   1.1  jonathan 		goto errout;
   2611   1.1  jonathan 	}
   2612  1.18    cegger 	memset(me->me_C.dma_vaddr, 0, me->me_C.dma_size);
   2613   1.1  jonathan 
   2614   1.1  jonathan 	ebits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_E]);
   2615   1.1  jonathan 	if (ebits > nbits) {
   2616   1.1  jonathan 		err = E2BIG;
   2617   1.1  jonathan 		goto errout;
   2618   1.1  jonathan 	}
   2619   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_E, 0)) {
   2620   1.1  jonathan 		err = ENOMEM;
   2621   1.1  jonathan 		goto errout;
   2622   1.1  jonathan 	}
   2623   1.1  jonathan 	ubsec_kshift_r(shiftbits,
   2624   1.1  jonathan 	    krp->krp_param[UBS_MODEXP_PAR_E].crp_p, ebits,
   2625   1.1  jonathan 	    me->me_E.dma_vaddr, normbits);
   2626   1.1  jonathan 
   2627   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_pktbuf),
   2628   1.1  jonathan 	    &me->me_epb, 0)) {
   2629   1.1  jonathan 		err = ENOMEM;
   2630   1.1  jonathan 		goto errout;
   2631   1.1  jonathan 	}
   2632   1.1  jonathan 	epb = (struct ubsec_pktbuf *)me->me_epb.dma_vaddr;
   2633   1.1  jonathan 	epb->pb_addr = htole32(me->me_E.dma_paddr);
   2634   1.1  jonathan 	epb->pb_next = 0;
   2635   1.1  jonathan 	epb->pb_len = htole32(normbits / 8);
   2636   1.1  jonathan 
   2637   1.1  jonathan #ifdef UBSEC_DEBUG
   2638   1.1  jonathan 	if (ubsec_debug) {
   2639   1.1  jonathan 		printf("Epb ");
   2640   1.1  jonathan 		ubsec_dump_pb(epb);
   2641   1.1  jonathan 	}
   2642   1.1  jonathan #endif
   2643   1.1  jonathan 
   2644   1.1  jonathan 	mcr->mcr_pkts = htole16(1);
   2645   1.1  jonathan 	mcr->mcr_flags = 0;
   2646   1.1  jonathan 	mcr->mcr_cmdctxp = htole32(me->me_q.q_ctx.dma_paddr);
   2647   1.1  jonathan 	mcr->mcr_reserved = 0;
   2648   1.1  jonathan 	mcr->mcr_pktlen = 0;
   2649   1.1  jonathan 
   2650   1.1  jonathan 	mcr->mcr_ipktbuf.pb_addr = htole32(me->me_M.dma_paddr);
   2651   1.1  jonathan 	mcr->mcr_ipktbuf.pb_len = htole32(normbits / 8);
   2652   1.1  jonathan 	mcr->mcr_ipktbuf.pb_next = htole32(me->me_epb.dma_paddr);
   2653   1.1  jonathan 
   2654   1.1  jonathan 	mcr->mcr_opktbuf.pb_addr = htole32(me->me_C.dma_paddr);
   2655   1.1  jonathan 	mcr->mcr_opktbuf.pb_next = 0;
   2656   1.1  jonathan 	mcr->mcr_opktbuf.pb_len = htole32(normbits / 8);
   2657   1.1  jonathan 
   2658   1.1  jonathan #ifdef DIAGNOSTIC
   2659   1.1  jonathan 	/* Misaligned output buffer will hang the chip. */
   2660   1.1  jonathan 	if ((letoh32(mcr->mcr_opktbuf.pb_addr) & 3) != 0)
   2661   1.1  jonathan 		panic("%s: modexp invalid addr 0x%x",
   2662  1.28       chs 		    device_xname(sc->sc_dev), letoh32(mcr->mcr_opktbuf.pb_addr));
   2663   1.1  jonathan 	if ((letoh32(mcr->mcr_opktbuf.pb_len) & 3) != 0)
   2664   1.1  jonathan 		panic("%s: modexp invalid len 0x%x",
   2665  1.28       chs 		    device_xname(sc->sc_dev), letoh32(mcr->mcr_opktbuf.pb_len));
   2666   1.1  jonathan #endif
   2667   1.1  jonathan 
   2668   1.1  jonathan 	ctx = (struct ubsec_ctx_modexp *)me->me_q.q_ctx.dma_vaddr;
   2669  1.18    cegger 	memset(ctx, 0, sizeof(*ctx));
   2670   1.1  jonathan 	ubsec_kshift_r(shiftbits,
   2671   1.1  jonathan 	    krp->krp_param[UBS_MODEXP_PAR_N].crp_p, nbits,
   2672   1.1  jonathan 	    ctx->me_N, normbits);
   2673   1.1  jonathan 	ctx->me_len = htole16((normbits / 8) + (4 * sizeof(u_int16_t)));
   2674   1.1  jonathan 	ctx->me_op = htole16(UBS_CTXOP_MODEXP);
   2675   1.1  jonathan 	ctx->me_E_len = htole16(nbits);
   2676   1.1  jonathan 	ctx->me_N_len = htole16(nbits);
   2677   1.1  jonathan 
   2678   1.1  jonathan #ifdef UBSEC_DEBUG
   2679   1.1  jonathan 	if (ubsec_debug) {
   2680   1.1  jonathan 		ubsec_dump_mcr(mcr);
   2681   1.1  jonathan 		ubsec_dump_ctx2((struct ubsec_ctx_keyop *)ctx);
   2682   1.1  jonathan 	}
   2683   1.1  jonathan #endif
   2684   1.1  jonathan 
   2685   1.1  jonathan 	/*
   2686   1.1  jonathan 	 * ubsec_feed2 will sync mcr and ctx, we just need to sync
   2687   1.1  jonathan 	 * everything else.
   2688   1.1  jonathan 	 */
   2689   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
   2690   1.1  jonathan 	    0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2691   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
   2692   1.1  jonathan 	    0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2693   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
   2694   1.1  jonathan 	    0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
   2695   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
   2696   1.1  jonathan 	    0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2697   1.1  jonathan 
   2698   1.1  jonathan 	/* Enqueue and we're done... */
   2699  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   2700   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &me->me_q, q_next);
   2701   1.1  jonathan 	ubsec_feed2(sc);
   2702   1.1  jonathan 	ubsecstats.hst_modexp++;
   2703  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   2704   1.1  jonathan 
   2705   1.1  jonathan 	return (0);
   2706   1.1  jonathan 
   2707   1.1  jonathan errout:
   2708   1.1  jonathan 	if (me != NULL) {
   2709   1.1  jonathan 		if (me->me_q.q_mcr.dma_map != NULL)
   2710   1.1  jonathan 			ubsec_dma_free(sc, &me->me_q.q_mcr);
   2711   1.1  jonathan 		if (me->me_q.q_ctx.dma_map != NULL) {
   2712  1.18    cegger 			memset(me->me_q.q_ctx.dma_vaddr, 0, me->me_q.q_ctx.dma_size);
   2713   1.1  jonathan 			ubsec_dma_free(sc, &me->me_q.q_ctx);
   2714   1.1  jonathan 		}
   2715   1.1  jonathan 		if (me->me_M.dma_map != NULL) {
   2716  1.18    cegger 			memset(me->me_M.dma_vaddr, 0, me->me_M.dma_size);
   2717   1.1  jonathan 			ubsec_dma_free(sc, &me->me_M);
   2718   1.1  jonathan 		}
   2719   1.1  jonathan 		if (me->me_E.dma_map != NULL) {
   2720  1.18    cegger 			memset(me->me_E.dma_vaddr, 0, me->me_E.dma_size);
   2721   1.1  jonathan 			ubsec_dma_free(sc, &me->me_E);
   2722   1.1  jonathan 		}
   2723   1.1  jonathan 		if (me->me_C.dma_map != NULL) {
   2724  1.18    cegger 			memset(me->me_C.dma_vaddr, 0, me->me_C.dma_size);
   2725   1.1  jonathan 			ubsec_dma_free(sc, &me->me_C);
   2726   1.1  jonathan 		}
   2727   1.1  jonathan 		if (me->me_epb.dma_map != NULL)
   2728   1.1  jonathan 			ubsec_dma_free(sc, &me->me_epb);
   2729   1.1  jonathan 		free(me, M_DEVBUF);
   2730   1.1  jonathan 	}
   2731   1.1  jonathan 	krp->krp_status = err;
   2732   1.1  jonathan 	crypto_kdone(krp);
   2733   1.1  jonathan 	return (0);
   2734   1.1  jonathan }
   2735   1.1  jonathan 
   2736   1.1  jonathan /*
   2737   1.1  jonathan  * Start computation of cr[C] = (cr[M] ^ cr[E]) mod cr[N] (hw normalization)
   2738   1.1  jonathan  */
   2739   1.1  jonathan static int
   2740   1.1  jonathan ubsec_kprocess_modexp_hw(struct ubsec_softc *sc, struct cryptkop *krp,
   2741  1.11  christos 			 int hint)
   2742   1.1  jonathan {
   2743   1.1  jonathan 	struct ubsec_q2_modexp *me;
   2744   1.1  jonathan 	struct ubsec_mcr *mcr;
   2745   1.1  jonathan 	struct ubsec_ctx_modexp *ctx;
   2746   1.1  jonathan 	struct ubsec_pktbuf *epb;
   2747  1.29       tls 	int err = 0;
   2748   1.1  jonathan 	u_int nbits, normbits, mbits, shiftbits, ebits;
   2749   1.1  jonathan 
   2750   1.1  jonathan 	me = (struct ubsec_q2_modexp *)malloc(sizeof *me, M_DEVBUF, M_NOWAIT);
   2751   1.1  jonathan 	if (me == NULL) {
   2752   1.1  jonathan 		err = ENOMEM;
   2753   1.1  jonathan 		goto errout;
   2754   1.1  jonathan 	}
   2755  1.18    cegger 	memset(me, 0, sizeof *me);
   2756   1.1  jonathan 	me->me_krp = krp;
   2757   1.1  jonathan 	me->me_q.q_type = UBS_CTXOP_MODEXP;
   2758   1.1  jonathan 
   2759   1.1  jonathan 	nbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_N]);
   2760   1.1  jonathan 	if (nbits <= 512)
   2761   1.1  jonathan 		normbits = 512;
   2762   1.1  jonathan 	else if (nbits <= 768)
   2763   1.1  jonathan 		normbits = 768;
   2764   1.1  jonathan 	else if (nbits <= 1024)
   2765   1.1  jonathan 		normbits = 1024;
   2766   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 1536)
   2767   1.1  jonathan 		normbits = 1536;
   2768   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 2048)
   2769   1.1  jonathan 		normbits = 2048;
   2770   1.1  jonathan 	else {
   2771   1.1  jonathan 		err = E2BIG;
   2772   1.1  jonathan 		goto errout;
   2773   1.1  jonathan 	}
   2774   1.1  jonathan 
   2775   1.1  jonathan 	shiftbits = normbits - nbits;
   2776   1.1  jonathan 
   2777   1.1  jonathan 	/* XXX ??? */
   2778   1.1  jonathan 	me->me_modbits = nbits;
   2779   1.1  jonathan 	me->me_shiftbits = shiftbits;
   2780   1.1  jonathan 	me->me_normbits = normbits;
   2781   1.1  jonathan 
   2782   1.1  jonathan 	/* Sanity check: result bits must be >= true modulus bits. */
   2783   1.1  jonathan 	if (krp->krp_param[krp->krp_iparams].crp_nbits < nbits) {
   2784   1.1  jonathan 		err = ERANGE;
   2785   1.1  jonathan 		goto errout;
   2786   1.1  jonathan 	}
   2787   1.1  jonathan 
   2788   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
   2789   1.1  jonathan 	    &me->me_q.q_mcr, 0)) {
   2790   1.1  jonathan 		err = ENOMEM;
   2791   1.1  jonathan 		goto errout;
   2792   1.1  jonathan 	}
   2793   1.1  jonathan 	mcr = (struct ubsec_mcr *)me->me_q.q_mcr.dma_vaddr;
   2794   1.1  jonathan 
   2795   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_modexp),
   2796   1.1  jonathan 	    &me->me_q.q_ctx, 0)) {
   2797   1.1  jonathan 		err = ENOMEM;
   2798   1.1  jonathan 		goto errout;
   2799   1.1  jonathan 	}
   2800   1.1  jonathan 
   2801   1.1  jonathan 	mbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_M]);
   2802   1.1  jonathan 	if (mbits > nbits) {
   2803   1.1  jonathan 		err = E2BIG;
   2804   1.1  jonathan 		goto errout;
   2805   1.1  jonathan 	}
   2806   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_M, 0)) {
   2807   1.1  jonathan 		err = ENOMEM;
   2808   1.1  jonathan 		goto errout;
   2809   1.1  jonathan 	}
   2810  1.18    cegger 	memset(me->me_M.dma_vaddr, 0, normbits / 8);
   2811   1.1  jonathan 	bcopy(krp->krp_param[UBS_MODEXP_PAR_M].crp_p,
   2812   1.1  jonathan 	    me->me_M.dma_vaddr, (mbits + 7) / 8);
   2813   1.1  jonathan 
   2814   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_C, 0)) {
   2815   1.1  jonathan 		err = ENOMEM;
   2816   1.1  jonathan 		goto errout;
   2817   1.1  jonathan 	}
   2818  1.18    cegger 	memset(me->me_C.dma_vaddr, 0, me->me_C.dma_size);
   2819   1.1  jonathan 
   2820   1.1  jonathan 	ebits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_E]);
   2821   1.1  jonathan 	if (ebits > nbits) {
   2822   1.1  jonathan 		err = E2BIG;
   2823   1.1  jonathan 		goto errout;
   2824   1.1  jonathan 	}
   2825   1.1  jonathan 	if (ubsec_dma_malloc(sc, normbits / 8, &me->me_E, 0)) {
   2826   1.1  jonathan 		err = ENOMEM;
   2827   1.1  jonathan 		goto errout;
   2828   1.1  jonathan 	}
   2829  1.18    cegger 	memset(me->me_E.dma_vaddr, 0, normbits / 8);
   2830   1.1  jonathan 	bcopy(krp->krp_param[UBS_MODEXP_PAR_E].crp_p,
   2831   1.1  jonathan 	    me->me_E.dma_vaddr, (ebits + 7) / 8);
   2832   1.1  jonathan 
   2833   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_pktbuf),
   2834   1.1  jonathan 	    &me->me_epb, 0)) {
   2835   1.1  jonathan 		err = ENOMEM;
   2836   1.1  jonathan 		goto errout;
   2837   1.1  jonathan 	}
   2838   1.1  jonathan 	epb = (struct ubsec_pktbuf *)me->me_epb.dma_vaddr;
   2839   1.1  jonathan 	epb->pb_addr = htole32(me->me_E.dma_paddr);
   2840   1.1  jonathan 	epb->pb_next = 0;
   2841   1.1  jonathan 	epb->pb_len = htole32((ebits + 7) / 8);
   2842   1.1  jonathan 
   2843   1.1  jonathan #ifdef UBSEC_DEBUG
   2844   1.1  jonathan 	if (ubsec_debug) {
   2845   1.1  jonathan 		printf("Epb ");
   2846   1.1  jonathan 		ubsec_dump_pb(epb);
   2847   1.1  jonathan 	}
   2848   1.1  jonathan #endif
   2849   1.1  jonathan 
   2850   1.1  jonathan 	mcr->mcr_pkts = htole16(1);
   2851   1.1  jonathan 	mcr->mcr_flags = 0;
   2852   1.1  jonathan 	mcr->mcr_cmdctxp = htole32(me->me_q.q_ctx.dma_paddr);
   2853   1.1  jonathan 	mcr->mcr_reserved = 0;
   2854   1.1  jonathan 	mcr->mcr_pktlen = 0;
   2855   1.1  jonathan 
   2856   1.1  jonathan 	mcr->mcr_ipktbuf.pb_addr = htole32(me->me_M.dma_paddr);
   2857   1.1  jonathan 	mcr->mcr_ipktbuf.pb_len = htole32(normbits / 8);
   2858   1.1  jonathan 	mcr->mcr_ipktbuf.pb_next = htole32(me->me_epb.dma_paddr);
   2859   1.1  jonathan 
   2860   1.1  jonathan 	mcr->mcr_opktbuf.pb_addr = htole32(me->me_C.dma_paddr);
   2861   1.1  jonathan 	mcr->mcr_opktbuf.pb_next = 0;
   2862   1.1  jonathan 	mcr->mcr_opktbuf.pb_len = htole32(normbits / 8);
   2863   1.1  jonathan 
   2864   1.1  jonathan #ifdef DIAGNOSTIC
   2865   1.1  jonathan 	/* Misaligned output buffer will hang the chip. */
   2866   1.1  jonathan 	if ((letoh32(mcr->mcr_opktbuf.pb_addr) & 3) != 0)
   2867   1.1  jonathan 		panic("%s: modexp invalid addr 0x%x",
   2868  1.28       chs 		    device_xname(sc->sc_dev), letoh32(mcr->mcr_opktbuf.pb_addr));
   2869   1.1  jonathan 	if ((letoh32(mcr->mcr_opktbuf.pb_len) & 3) != 0)
   2870   1.1  jonathan 		panic("%s: modexp invalid len 0x%x",
   2871  1.28       chs 		    device_xname(sc->sc_dev), letoh32(mcr->mcr_opktbuf.pb_len));
   2872   1.1  jonathan #endif
   2873   1.1  jonathan 
   2874   1.1  jonathan 	ctx = (struct ubsec_ctx_modexp *)me->me_q.q_ctx.dma_vaddr;
   2875  1.18    cegger 	memset(ctx, 0, sizeof(*ctx));
   2876  1.20   tsutsui 	memcpy(ctx->me_N, krp->krp_param[UBS_MODEXP_PAR_N].crp_p,
   2877   1.1  jonathan 	    (nbits + 7) / 8);
   2878   1.1  jonathan 	ctx->me_len = htole16((normbits / 8) + (4 * sizeof(u_int16_t)));
   2879   1.1  jonathan 	ctx->me_op = htole16(UBS_CTXOP_MODEXP);
   2880   1.1  jonathan 	ctx->me_E_len = htole16(ebits);
   2881   1.1  jonathan 	ctx->me_N_len = htole16(nbits);
   2882   1.1  jonathan 
   2883   1.1  jonathan #ifdef UBSEC_DEBUG
   2884   1.1  jonathan 	if (ubsec_debug) {
   2885   1.1  jonathan 		ubsec_dump_mcr(mcr);
   2886   1.1  jonathan 		ubsec_dump_ctx2((struct ubsec_ctx_keyop *)ctx);
   2887   1.1  jonathan 	}
   2888   1.1  jonathan #endif
   2889   1.1  jonathan 
   2890   1.1  jonathan 	/*
   2891   1.1  jonathan 	 * ubsec_feed2 will sync mcr and ctx, we just need to sync
   2892   1.1  jonathan 	 * everything else.
   2893   1.1  jonathan 	 */
   2894   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
   2895   1.1  jonathan 	    0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2896   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
   2897   1.1  jonathan 	    0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2898   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
   2899   1.1  jonathan 	    0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
   2900   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
   2901   1.1  jonathan 	    0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   2902   1.1  jonathan 
   2903   1.1  jonathan 	/* Enqueue and we're done... */
   2904  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   2905   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &me->me_q, q_next);
   2906   1.1  jonathan 	ubsec_feed2(sc);
   2907  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   2908   1.1  jonathan 
   2909   1.1  jonathan 	return (0);
   2910   1.1  jonathan 
   2911   1.1  jonathan errout:
   2912   1.1  jonathan 	if (me != NULL) {
   2913   1.1  jonathan 		if (me->me_q.q_mcr.dma_map != NULL)
   2914   1.1  jonathan 			ubsec_dma_free(sc, &me->me_q.q_mcr);
   2915   1.1  jonathan 		if (me->me_q.q_ctx.dma_map != NULL) {
   2916  1.18    cegger 			memset(me->me_q.q_ctx.dma_vaddr, 0, me->me_q.q_ctx.dma_size);
   2917   1.1  jonathan 			ubsec_dma_free(sc, &me->me_q.q_ctx);
   2918   1.1  jonathan 		}
   2919   1.1  jonathan 		if (me->me_M.dma_map != NULL) {
   2920  1.18    cegger 			memset(me->me_M.dma_vaddr, 0, me->me_M.dma_size);
   2921   1.1  jonathan 			ubsec_dma_free(sc, &me->me_M);
   2922   1.1  jonathan 		}
   2923   1.1  jonathan 		if (me->me_E.dma_map != NULL) {
   2924  1.18    cegger 			memset(me->me_E.dma_vaddr, 0, me->me_E.dma_size);
   2925   1.1  jonathan 			ubsec_dma_free(sc, &me->me_E);
   2926   1.1  jonathan 		}
   2927   1.1  jonathan 		if (me->me_C.dma_map != NULL) {
   2928  1.18    cegger 			memset(me->me_C.dma_vaddr, 0, me->me_C.dma_size);
   2929   1.1  jonathan 			ubsec_dma_free(sc, &me->me_C);
   2930   1.1  jonathan 		}
   2931   1.1  jonathan 		if (me->me_epb.dma_map != NULL)
   2932   1.1  jonathan 			ubsec_dma_free(sc, &me->me_epb);
   2933   1.1  jonathan 		free(me, M_DEVBUF);
   2934   1.1  jonathan 	}
   2935   1.1  jonathan 	krp->krp_status = err;
   2936   1.1  jonathan 	crypto_kdone(krp);
   2937   1.1  jonathan 	return (0);
   2938   1.1  jonathan }
   2939   1.1  jonathan 
   2940   1.1  jonathan static int
   2941   1.1  jonathan ubsec_kprocess_rsapriv(struct ubsec_softc *sc, struct cryptkop *krp,
   2942  1.11  christos 		       int hint)
   2943   1.1  jonathan {
   2944   1.1  jonathan 	struct ubsec_q2_rsapriv *rp = NULL;
   2945   1.1  jonathan 	struct ubsec_mcr *mcr;
   2946   1.1  jonathan 	struct ubsec_ctx_rsapriv *ctx;
   2947  1.29       tls 	int err = 0;
   2948   1.1  jonathan 	u_int padlen, msglen;
   2949   1.1  jonathan 
   2950   1.1  jonathan 	msglen = ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_P]);
   2951   1.1  jonathan 	padlen = ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_Q]);
   2952   1.1  jonathan 	if (msglen > padlen)
   2953   1.1  jonathan 		padlen = msglen;
   2954   1.1  jonathan 
   2955   1.1  jonathan 	if (padlen <= 256)
   2956   1.1  jonathan 		padlen = 256;
   2957   1.1  jonathan 	else if (padlen <= 384)
   2958   1.1  jonathan 		padlen = 384;
   2959   1.1  jonathan 	else if (padlen <= 512)
   2960   1.1  jonathan 		padlen = 512;
   2961   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && padlen <= 768)
   2962   1.1  jonathan 		padlen = 768;
   2963   1.1  jonathan 	else if (sc->sc_flags & UBS_FLAGS_BIGKEY && padlen <= 1024)
   2964   1.1  jonathan 		padlen = 1024;
   2965   1.1  jonathan 	else {
   2966   1.1  jonathan 		err = E2BIG;
   2967   1.1  jonathan 		goto errout;
   2968   1.1  jonathan 	}
   2969   1.1  jonathan 
   2970   1.1  jonathan 	if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_DP]) > padlen) {
   2971   1.1  jonathan 		err = E2BIG;
   2972   1.1  jonathan 		goto errout;
   2973   1.1  jonathan 	}
   2974   1.1  jonathan 
   2975   1.1  jonathan 	if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_DQ]) > padlen) {
   2976   1.1  jonathan 		err = E2BIG;
   2977   1.1  jonathan 		goto errout;
   2978   1.1  jonathan 	}
   2979   1.1  jonathan 
   2980   1.1  jonathan 	if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_PINV]) > padlen) {
   2981   1.1  jonathan 		err = E2BIG;
   2982   1.1  jonathan 		goto errout;
   2983   1.1  jonathan 	}
   2984   1.1  jonathan 
   2985  1.17    cegger 	rp = malloc(sizeof *rp, M_DEVBUF, M_NOWAIT|M_ZERO);
   2986   1.1  jonathan 	if (rp == NULL)
   2987   1.1  jonathan 		return (ENOMEM);
   2988   1.1  jonathan 	rp->rpr_krp = krp;
   2989   1.1  jonathan 	rp->rpr_q.q_type = UBS_CTXOP_RSAPRIV;
   2990   1.1  jonathan 
   2991   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
   2992   1.1  jonathan 	    &rp->rpr_q.q_mcr, 0)) {
   2993   1.1  jonathan 		err = ENOMEM;
   2994   1.1  jonathan 		goto errout;
   2995   1.1  jonathan 	}
   2996   1.1  jonathan 	mcr = (struct ubsec_mcr *)rp->rpr_q.q_mcr.dma_vaddr;
   2997   1.1  jonathan 
   2998   1.1  jonathan 	if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_rsapriv),
   2999   1.1  jonathan 	    &rp->rpr_q.q_ctx, 0)) {
   3000   1.1  jonathan 		err = ENOMEM;
   3001   1.1  jonathan 		goto errout;
   3002   1.1  jonathan 	}
   3003   1.1  jonathan 	ctx = (struct ubsec_ctx_rsapriv *)rp->rpr_q.q_ctx.dma_vaddr;
   3004  1.18    cegger 	memset(ctx, 0, sizeof *ctx);
   3005   1.1  jonathan 
   3006   1.1  jonathan 	/* Copy in p */
   3007   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_P].crp_p,
   3008   1.1  jonathan 	    &ctx->rpr_buf[0 * (padlen / 8)],
   3009   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_P].crp_nbits + 7) / 8);
   3010   1.1  jonathan 
   3011   1.1  jonathan 	/* Copy in q */
   3012   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_Q].crp_p,
   3013   1.1  jonathan 	    &ctx->rpr_buf[1 * (padlen / 8)],
   3014   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_Q].crp_nbits + 7) / 8);
   3015   1.1  jonathan 
   3016   1.1  jonathan 	/* Copy in dp */
   3017   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_DP].crp_p,
   3018   1.1  jonathan 	    &ctx->rpr_buf[2 * (padlen / 8)],
   3019   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_DP].crp_nbits + 7) / 8);
   3020   1.1  jonathan 
   3021   1.1  jonathan 	/* Copy in dq */
   3022   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_DQ].crp_p,
   3023   1.1  jonathan 	    &ctx->rpr_buf[3 * (padlen / 8)],
   3024   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_DQ].crp_nbits + 7) / 8);
   3025   1.1  jonathan 
   3026   1.1  jonathan 	/* Copy in pinv */
   3027   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_PINV].crp_p,
   3028   1.1  jonathan 	    &ctx->rpr_buf[4 * (padlen / 8)],
   3029   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_PINV].crp_nbits + 7) / 8);
   3030   1.1  jonathan 
   3031   1.1  jonathan 	msglen = padlen * 2;
   3032   1.1  jonathan 
   3033   1.1  jonathan 	/* Copy in input message (aligned buffer/length). */
   3034   1.1  jonathan 	if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_MSGIN]) > msglen) {
   3035   1.1  jonathan 		/* Is this likely? */
   3036   1.1  jonathan 		err = E2BIG;
   3037   1.1  jonathan 		goto errout;
   3038   1.1  jonathan 	}
   3039   1.1  jonathan 	if (ubsec_dma_malloc(sc, (msglen + 7) / 8, &rp->rpr_msgin, 0)) {
   3040   1.1  jonathan 		err = ENOMEM;
   3041   1.1  jonathan 		goto errout;
   3042   1.1  jonathan 	}
   3043  1.18    cegger 	memset(rp->rpr_msgin.dma_vaddr, 0, (msglen + 7) / 8);
   3044   1.1  jonathan 	bcopy(krp->krp_param[UBS_RSAPRIV_PAR_MSGIN].crp_p,
   3045   1.1  jonathan 	    rp->rpr_msgin.dma_vaddr,
   3046   1.1  jonathan 	    (krp->krp_param[UBS_RSAPRIV_PAR_MSGIN].crp_nbits + 7) / 8);
   3047   1.1  jonathan 
   3048   1.1  jonathan 	/* Prepare space for output message (aligned buffer/length). */
   3049   1.1  jonathan 	if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT]) < msglen) {
   3050   1.1  jonathan 		/* Is this likely? */
   3051   1.1  jonathan 		err = E2BIG;
   3052   1.1  jonathan 		goto errout;
   3053   1.1  jonathan 	}
   3054   1.1  jonathan 	if (ubsec_dma_malloc(sc, (msglen + 7) / 8, &rp->rpr_msgout, 0)) {
   3055   1.1  jonathan 		err = ENOMEM;
   3056   1.1  jonathan 		goto errout;
   3057   1.1  jonathan 	}
   3058  1.18    cegger 	memset(rp->rpr_msgout.dma_vaddr, 0, (msglen + 7) / 8);
   3059   1.1  jonathan 
   3060   1.1  jonathan 	mcr->mcr_pkts = htole16(1);
   3061   1.1  jonathan 	mcr->mcr_flags = 0;
   3062   1.1  jonathan 	mcr->mcr_cmdctxp = htole32(rp->rpr_q.q_ctx.dma_paddr);
   3063   1.1  jonathan 	mcr->mcr_ipktbuf.pb_addr = htole32(rp->rpr_msgin.dma_paddr);
   3064   1.1  jonathan 	mcr->mcr_ipktbuf.pb_next = 0;
   3065   1.1  jonathan 	mcr->mcr_ipktbuf.pb_len = htole32(rp->rpr_msgin.dma_size);
   3066   1.1  jonathan 	mcr->mcr_reserved = 0;
   3067   1.1  jonathan 	mcr->mcr_pktlen = htole16(msglen);
   3068   1.1  jonathan 	mcr->mcr_opktbuf.pb_addr = htole32(rp->rpr_msgout.dma_paddr);
   3069   1.1  jonathan 	mcr->mcr_opktbuf.pb_next = 0;
   3070   1.1  jonathan 	mcr->mcr_opktbuf.pb_len = htole32(rp->rpr_msgout.dma_size);
   3071   1.1  jonathan 
   3072   1.1  jonathan #ifdef DIAGNOSTIC
   3073   1.1  jonathan 	if (rp->rpr_msgin.dma_paddr & 3 || rp->rpr_msgin.dma_size & 3) {
   3074   1.3   thorpej 		panic("%s: rsapriv: invalid msgin 0x%lx(0x%lx)",
   3075  1.28       chs 		    device_xname(sc->sc_dev), (u_long) rp->rpr_msgin.dma_paddr,
   3076   1.3   thorpej 		    (u_long) rp->rpr_msgin.dma_size);
   3077   1.1  jonathan 	}
   3078   1.1  jonathan 	if (rp->rpr_msgout.dma_paddr & 3 || rp->rpr_msgout.dma_size & 3) {
   3079   1.3   thorpej 		panic("%s: rsapriv: invalid msgout 0x%lx(0x%lx)",
   3080  1.28       chs 		    device_xname(sc->sc_dev), (u_long) rp->rpr_msgout.dma_paddr,
   3081   1.3   thorpej 		    (u_long) rp->rpr_msgout.dma_size);
   3082   1.1  jonathan 	}
   3083   1.1  jonathan #endif
   3084   1.1  jonathan 
   3085   1.1  jonathan 	ctx->rpr_len = (sizeof(u_int16_t) * 4) + (5 * (padlen / 8));
   3086   1.1  jonathan 	ctx->rpr_op = htole16(UBS_CTXOP_RSAPRIV);
   3087   1.1  jonathan 	ctx->rpr_q_len = htole16(padlen);
   3088   1.1  jonathan 	ctx->rpr_p_len = htole16(padlen);
   3089   1.1  jonathan 
   3090   1.1  jonathan 	/*
   3091   1.1  jonathan 	 * ubsec_feed2 will sync mcr and ctx, we just need to sync
   3092   1.1  jonathan 	 * everything else.
   3093   1.1  jonathan 	 */
   3094   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgin.dma_map,
   3095   1.1  jonathan 	    0, rp->rpr_msgin.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
   3096   1.1  jonathan 	bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgout.dma_map,
   3097   1.1  jonathan 	    0, rp->rpr_msgout.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
   3098   1.1  jonathan 
   3099   1.1  jonathan 	/* Enqueue and we're done... */
   3100  1.29       tls 	mutex_spin_enter(&sc->sc_mtx);
   3101   1.1  jonathan 	SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &rp->rpr_q, q_next);
   3102   1.1  jonathan 	ubsec_feed2(sc);
   3103   1.1  jonathan 	ubsecstats.hst_modexpcrt++;
   3104  1.29       tls 	mutex_spin_exit(&sc->sc_mtx);
   3105   1.1  jonathan 	return (0);
   3106   1.1  jonathan 
   3107   1.1  jonathan errout:
   3108   1.1  jonathan 	if (rp != NULL) {
   3109   1.1  jonathan 		if (rp->rpr_q.q_mcr.dma_map != NULL)
   3110   1.1  jonathan 			ubsec_dma_free(sc, &rp->rpr_q.q_mcr);
   3111   1.1  jonathan 		if (rp->rpr_msgin.dma_map != NULL) {
   3112  1.18    cegger 			memset(rp->rpr_msgin.dma_vaddr, 0, rp->rpr_msgin.dma_size);
   3113   1.1  jonathan 			ubsec_dma_free(sc, &rp->rpr_msgin);
   3114   1.1  jonathan 		}
   3115   1.1  jonathan 		if (rp->rpr_msgout.dma_map != NULL) {
   3116  1.18    cegger 			memset(rp->rpr_msgout.dma_vaddr, 0, rp->rpr_msgout.dma_size);
   3117   1.1  jonathan 			ubsec_dma_free(sc, &rp->rpr_msgout);
   3118   1.1  jonathan 		}
   3119   1.1  jonathan 		free(rp, M_DEVBUF);
   3120   1.1  jonathan 	}
   3121   1.1  jonathan 	krp->krp_status = err;
   3122   1.1  jonathan 	crypto_kdone(krp);
   3123   1.1  jonathan 	return (0);
   3124   1.1  jonathan }
   3125   1.1  jonathan 
   3126   1.1  jonathan #ifdef UBSEC_DEBUG
   3127   1.1  jonathan static void
   3128   1.1  jonathan ubsec_dump_pb(volatile struct ubsec_pktbuf *pb)
   3129   1.1  jonathan {
   3130   1.1  jonathan 	printf("addr 0x%x (0x%x) next 0x%x\n",
   3131   1.1  jonathan 	    pb->pb_addr, pb->pb_len, pb->pb_next);
   3132   1.1  jonathan }
   3133   1.1  jonathan 
   3134   1.1  jonathan static void
   3135   1.1  jonathan ubsec_dump_ctx2(volatile struct ubsec_ctx_keyop *c)
   3136   1.1  jonathan {
   3137   1.1  jonathan 	printf("CTX (0x%x):\n", c->ctx_len);
   3138   1.1  jonathan 	switch (letoh16(c->ctx_op)) {
   3139   1.1  jonathan 	case UBS_CTXOP_RNGBYPASS:
   3140   1.1  jonathan 	case UBS_CTXOP_RNGSHA1:
   3141   1.1  jonathan 		break;
   3142   1.1  jonathan 	case UBS_CTXOP_MODEXP:
   3143   1.1  jonathan 	{
   3144   1.1  jonathan 		struct ubsec_ctx_modexp *cx = (void *)c;
   3145   1.1  jonathan 		int i, len;
   3146   1.1  jonathan 
   3147   1.1  jonathan 		printf(" Elen %u, Nlen %u\n",
   3148   1.1  jonathan 		    letoh16(cx->me_E_len), letoh16(cx->me_N_len));
   3149   1.1  jonathan 		len = (cx->me_N_len + 7)/8;
   3150   1.1  jonathan 		for (i = 0; i < len; i++)
   3151   1.1  jonathan 			printf("%s%02x", (i == 0) ? " N: " : ":", cx->me_N[i]);
   3152   1.1  jonathan 		printf("\n");
   3153   1.1  jonathan 		break;
   3154   1.1  jonathan 	}
   3155   1.1  jonathan 	default:
   3156   1.1  jonathan 		printf("unknown context: %x\n", c->ctx_op);
   3157   1.1  jonathan 	}
   3158   1.1  jonathan 	printf("END CTX\n");
   3159   1.1  jonathan }
   3160   1.1  jonathan 
   3161   1.1  jonathan static void
   3162   1.1  jonathan ubsec_dump_mcr(struct ubsec_mcr *mcr)
   3163   1.1  jonathan {
   3164   1.1  jonathan 	volatile struct ubsec_mcr_add *ma;
   3165   1.1  jonathan 	int i;
   3166   1.1  jonathan 
   3167   1.1  jonathan 	printf("MCR:\n");
   3168   1.1  jonathan 	printf(" pkts: %u, flags 0x%x\n",
   3169   1.1  jonathan 	    letoh16(mcr->mcr_pkts), letoh16(mcr->mcr_flags));
   3170   1.1  jonathan 	ma = (volatile struct ubsec_mcr_add *)&mcr->mcr_cmdctxp;
   3171   1.1  jonathan 	for (i = 0; i < letoh16(mcr->mcr_pkts); i++) {
   3172   1.1  jonathan 		printf(" %d: ctx 0x%x len 0x%x rsvd 0x%x\n", i,
   3173   1.1  jonathan 		    letoh32(ma->mcr_cmdctxp), letoh16(ma->mcr_pktlen),
   3174   1.1  jonathan 		    letoh16(ma->mcr_reserved));
   3175   1.1  jonathan 		printf(" %d: ipkt ", i);
   3176   1.1  jonathan 		ubsec_dump_pb(&ma->mcr_ipktbuf);
   3177   1.1  jonathan 		printf(" %d: opkt ", i);
   3178   1.1  jonathan 		ubsec_dump_pb(&ma->mcr_opktbuf);
   3179   1.1  jonathan 		ma++;
   3180   1.1  jonathan 	}
   3181   1.1  jonathan 	printf("END MCR\n");
   3182   1.1  jonathan }
   3183   1.1  jonathan #endif /* UBSEC_DEBUG */
   3184   1.1  jonathan 
   3185   1.1  jonathan /*
   3186   1.1  jonathan  * Return the number of significant bits of a big number.
   3187   1.1  jonathan  */
   3188   1.1  jonathan static int
   3189   1.1  jonathan ubsec_ksigbits(struct crparam *cr)
   3190   1.1  jonathan {
   3191   1.1  jonathan 	u_int plen = (cr->crp_nbits + 7) / 8;
   3192   1.1  jonathan 	int i, sig = plen * 8;
   3193   1.1  jonathan 	u_int8_t c, *p = cr->crp_p;
   3194   1.1  jonathan 
   3195   1.1  jonathan 	for (i = plen - 1; i >= 0; i--) {
   3196   1.1  jonathan 		c = p[i];
   3197   1.1  jonathan 		if (c != 0) {
   3198   1.1  jonathan 			while ((c & 0x80) == 0) {
   3199   1.1  jonathan 				sig--;
   3200   1.1  jonathan 				c <<= 1;
   3201   1.1  jonathan 			}
   3202   1.1  jonathan 			break;
   3203   1.1  jonathan 		}
   3204   1.1  jonathan 		sig -= 8;
   3205   1.1  jonathan 	}
   3206   1.1  jonathan 	return (sig);
   3207   1.1  jonathan }
   3208   1.1  jonathan 
   3209   1.1  jonathan static void
   3210   1.7   thorpej ubsec_kshift_r(u_int shiftbits, u_int8_t *src, u_int srcbits,
   3211   1.7   thorpej     u_int8_t *dst, u_int dstbits)
   3212   1.1  jonathan {
   3213   1.1  jonathan 	u_int slen, dlen;
   3214   1.1  jonathan 	int i, si, di, n;
   3215   1.1  jonathan 
   3216   1.1  jonathan 	slen = (srcbits + 7) / 8;
   3217   1.1  jonathan 	dlen = (dstbits + 7) / 8;
   3218   1.1  jonathan 
   3219   1.1  jonathan 	for (i = 0; i < slen; i++)
   3220   1.1  jonathan 		dst[i] = src[i];
   3221   1.1  jonathan 	for (i = 0; i < dlen - slen; i++)
   3222   1.1  jonathan 		dst[slen + i] = 0;
   3223   1.1  jonathan 
   3224   1.1  jonathan 	n = shiftbits / 8;
   3225   1.1  jonathan 	if (n != 0) {
   3226   1.1  jonathan 		si = dlen - n - 1;
   3227   1.1  jonathan 		di = dlen - 1;
   3228   1.1  jonathan 		while (si >= 0)
   3229   1.1  jonathan 			dst[di--] = dst[si--];
   3230   1.1  jonathan 		while (di >= 0)
   3231   1.1  jonathan 			dst[di--] = 0;
   3232   1.1  jonathan 	}
   3233   1.1  jonathan 
   3234   1.1  jonathan 	n = shiftbits % 8;
   3235   1.1  jonathan 	if (n != 0) {
   3236   1.1  jonathan 		for (i = dlen - 1; i > 0; i--)
   3237   1.1  jonathan 			dst[i] = (dst[i] << n) |
   3238   1.1  jonathan 			    (dst[i - 1] >> (8 - n));
   3239   1.1  jonathan 		dst[0] = dst[0] << n;
   3240   1.1  jonathan 	}
   3241   1.1  jonathan }
   3242   1.1  jonathan 
   3243   1.1  jonathan static void
   3244   1.7   thorpej ubsec_kshift_l(u_int shiftbits, u_int8_t *src, u_int srcbits,
   3245   1.7   thorpej     u_int8_t *dst, u_int dstbits)
   3246   1.1  jonathan {
   3247   1.1  jonathan 	int slen, dlen, i, n;
   3248   1.1  jonathan 
   3249   1.1  jonathan 	slen = (srcbits + 7) / 8;
   3250   1.1  jonathan 	dlen = (dstbits + 7) / 8;
   3251   1.1  jonathan 
   3252   1.1  jonathan 	n = shiftbits / 8;
   3253   1.1  jonathan 	for (i = 0; i < slen; i++)
   3254   1.1  jonathan 		dst[i] = src[i + n];
   3255   1.1  jonathan 	for (i = 0; i < dlen - slen; i++)
   3256   1.1  jonathan 		dst[slen + i] = 0;
   3257   1.1  jonathan 
   3258   1.1  jonathan 	n = shiftbits % 8;
   3259   1.1  jonathan 	if (n != 0) {
   3260   1.1  jonathan 		for (i = 0; i < (dlen - 1); i++)
   3261   1.1  jonathan 			dst[i] = (dst[i] >> n) | (dst[i + 1] << (8 - n));
   3262   1.1  jonathan 		dst[dlen - 1] = dst[dlen - 1] >> n;
   3263   1.1  jonathan 	}
   3264   1.1  jonathan }
   3265