+++ /dev/null
-/* $OpenBSD: ubsec.c,v 1.140 2007/10/01 15:34:48 krw Exp $ */
-
-/*
- * Copyright (c) 2000 Jason L. Wright (jason@thought.net)
- * Copyright (c) 2000 Theo de Raadt (deraadt@openbsd.org)
- * Copyright (c) 2001 Patrik Lindergren (patrik@ipunplugged.com)
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
- */
-
-#undef UBSEC_DEBUG
-
-/*
- * uBsec 5[56]01, 58xx hardware crypto accelerator
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/errno.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
-#include <sys/mbuf.h>
-#include <sys/device.h>
-#include <sys/queue.h>
-
-#include <crypto/cryptodev.h>
-#include <crypto/cryptosoft.h>
-#include <dev/rndvar.h>
-#include <crypto/md5.h>
-#include <crypto/sha1.h>
-
-#include <dev/pci/pcireg.h>
-#include <dev/pci/pcivar.h>
-#include <dev/pci/pcidevs.h>
-
-#include <dev/pci/ubsecreg.h>
-#include <dev/pci/ubsecvar.h>
-
-/*
- * Prototypes and count for the pci_device structure
- */
-int ubsec_probe(struct device *, void *, void *);
-void ubsec_attach(struct device *, struct device *, void *);
-void ubsec_reset_board(struct ubsec_softc *);
-void ubsec_init_board(struct ubsec_softc *);
-void ubsec_init_pciregs(struct pci_attach_args *pa);
-void ubsec_cleanchip(struct ubsec_softc *);
-void ubsec_totalreset(struct ubsec_softc *);
-int ubsec_free_q(struct ubsec_softc*, struct ubsec_q *);
-
-struct cfattach ubsec_ca = {
- sizeof(struct ubsec_softc), ubsec_probe, ubsec_attach,
-};
-
-struct cfdriver ubsec_cd = {
- 0, "ubsec", DV_DULL
-};
-
-int ubsec_intr(void *);
-int ubsec_newsession(u_int32_t *, struct cryptoini *);
-int ubsec_freesession(u_int64_t);
-int ubsec_process(struct cryptop *);
-void ubsec_callback(struct ubsec_softc *, struct ubsec_q *);
-void ubsec_feed(struct ubsec_softc *);
-void ubsec_mcopy(struct mbuf *, struct mbuf *, int, int);
-void ubsec_callback2(struct ubsec_softc *, struct ubsec_q2 *);
-void ubsec_feed2(struct ubsec_softc *);
-void ubsec_rng(void *);
-int ubsec_dma_malloc(struct ubsec_softc *, bus_size_t,
- struct ubsec_dma_alloc *, int);
-void ubsec_dma_free(struct ubsec_softc *, struct ubsec_dma_alloc *);
-int ubsec_dmamap_aligned(bus_dmamap_t);
-
-int ubsec_kprocess(struct cryptkop *);
-struct ubsec_softc *ubsec_kfind(struct cryptkop *);
-int ubsec_kprocess_modexp_sw(struct ubsec_softc *, struct cryptkop *);
-int ubsec_kprocess_modexp_hw(struct ubsec_softc *, struct cryptkop *);
-int ubsec_kprocess_rsapriv(struct ubsec_softc *, struct cryptkop *);
-void ubsec_kfree(struct ubsec_softc *, struct ubsec_q2 *);
-int ubsec_ksigbits(struct crparam *);
-void ubsec_kshift_r(u_int, u_int8_t *, u_int, u_int8_t *, u_int);
-void ubsec_kshift_l(u_int, u_int8_t *, u_int, u_int8_t *, u_int);
-
-/* DEBUG crap... */
-void ubsec_dump_pb(struct ubsec_pktbuf *);
-void ubsec_dump_mcr(struct ubsec_mcr *);
-void ubsec_dump_ctx2(struct ubsec_ctx_keyop *);
-
-#define READ_REG(sc,r) \
- bus_space_read_4((sc)->sc_st, (sc)->sc_sh, (r))
-
-#define WRITE_REG(sc,reg,val) \
- bus_space_write_4((sc)->sc_st, (sc)->sc_sh, reg, val)
-
-#define SWAP32(x) (x) = htole32(ntohl((x)))
-#define HTOLE32(x) (x) = htole32(x)
-
-
-struct ubsec_stats ubsecstats;
-
-const struct pci_matchid ubsec_devices[] = {
- { PCI_VENDOR_BLUESTEEL, PCI_PRODUCT_BLUESTEEL_5501 },
- { PCI_VENDOR_BLUESTEEL, PCI_PRODUCT_BLUESTEEL_5601 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5801 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5802 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5805 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5820 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5821 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5822 },
- { PCI_VENDOR_BROADCOM, PCI_PRODUCT_BROADCOM_5823 },
- { PCI_VENDOR_SUN, PCI_PRODUCT_SUN_SCA1K },
- { PCI_VENDOR_SUN, PCI_PRODUCT_SUN_5821 },
-};
-
-int
-ubsec_probe(struct device *parent, void *match, void *aux)
-{
- return (pci_matchbyid((struct pci_attach_args *)aux, ubsec_devices,
- sizeof(ubsec_devices)/sizeof(ubsec_devices[0])));
-}
-
-void
-ubsec_attach(struct device *parent, struct device *self, void *aux)
-{
- struct ubsec_softc *sc = (struct ubsec_softc *)self;
- struct pci_attach_args *pa = aux;
- pci_chipset_tag_t pc = pa->pa_pc;
- pci_intr_handle_t ih;
- const char *intrstr = NULL;
- struct ubsec_dma *dmap;
- bus_size_t iosize;
- u_int32_t i;
- int algs[CRYPTO_ALGORITHM_MAX + 1];
- int kalgs[CRK_ALGORITHM_MAX + 1];
-
- SIMPLEQ_INIT(&sc->sc_queue);
- SIMPLEQ_INIT(&sc->sc_qchip);
- SIMPLEQ_INIT(&sc->sc_queue2);
- SIMPLEQ_INIT(&sc->sc_qchip2);
- SIMPLEQ_INIT(&sc->sc_q2free);
-
- sc->sc_statmask = BS_STAT_MCR1_DONE | BS_STAT_DMAERR;
-
- if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BLUESTEEL &&
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BLUESTEEL_5601)
- sc->sc_flags |= UBS_FLAGS_KEY | UBS_FLAGS_RNG;
-
- if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROADCOM &&
- (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5802 ||
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5805))
- sc->sc_flags |= UBS_FLAGS_KEY | UBS_FLAGS_RNG;
-
- if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROADCOM &&
- (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5820 ||
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5822 ||
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5823))
- sc->sc_flags |= UBS_FLAGS_KEY | UBS_FLAGS_RNG |
- UBS_FLAGS_LONGCTX | UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY;
-
- if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROADCOM &&
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROADCOM_5821) ||
- (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN &&
- (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_SCA1K ||
- PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_5821))) {
- sc->sc_statmask |= BS_STAT_MCR1_ALLEMPTY |
- BS_STAT_MCR2_ALLEMPTY;
- sc->sc_flags |= UBS_FLAGS_KEY | UBS_FLAGS_RNG |
- UBS_FLAGS_LONGCTX | UBS_FLAGS_HWNORM | UBS_FLAGS_BIGKEY;
- }
-
- if (pci_mapreg_map(pa, BS_BAR, PCI_MAPREG_TYPE_MEM, 0,
- &sc->sc_st, &sc->sc_sh, NULL, &iosize, 0)) {
- printf(": can't find mem space\n");
- return;
- }
- sc->sc_dmat = pa->pa_dmat;
-
- if (pci_intr_map(pa, &ih)) {
- printf(": couldn't map interrupt\n");
- bus_space_unmap(sc->sc_st, sc->sc_sh, iosize);
- return;
- }
- intrstr = pci_intr_string(pc, ih);
- sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, ubsec_intr, sc,
- self->dv_xname);
- if (sc->sc_ih == NULL) {
- printf(": couldn't establish interrupt");
- if (intrstr != NULL)
- printf(" at %s", intrstr);
- printf("\n");
- bus_space_unmap(sc->sc_st, sc->sc_sh, iosize);
- return;
- }
-
- sc->sc_cid = crypto_get_driverid(0);
- if (sc->sc_cid < 0) {
- pci_intr_disestablish(pc, sc->sc_ih);
- bus_space_unmap(sc->sc_st, sc->sc_sh, iosize);
- return;
- }
-
- SIMPLEQ_INIT(&sc->sc_freequeue);
- dmap = sc->sc_dmaa;
- for (i = 0; i < UBS_MAX_NQUEUE; i++, dmap++) {
- struct ubsec_q *q;
-
- q = (struct ubsec_q *)malloc(sizeof(struct ubsec_q),
- M_DEVBUF, M_NOWAIT);
- if (q == NULL) {
- printf(": can't allocate queue buffers\n");
- break;
- }
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_dmachunk),
- &dmap->d_alloc, 0)) {
- printf(": can't allocate dma buffers\n");
- free(q, M_DEVBUF);
- break;
- }
- dmap->d_dma = (struct ubsec_dmachunk *)dmap->d_alloc.dma_vaddr;
-
- q->q_dma = dmap;
- sc->sc_queuea[i] = q;
-
- SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
- }
-
- bzero(algs, sizeof(algs));
- algs[CRYPTO_3DES_CBC] = CRYPTO_ALG_FLAG_SUPPORTED;
- algs[CRYPTO_DES_CBC] = CRYPTO_ALG_FLAG_SUPPORTED;
- algs[CRYPTO_MD5_HMAC] = CRYPTO_ALG_FLAG_SUPPORTED;
- algs[CRYPTO_SHA1_HMAC] = CRYPTO_ALG_FLAG_SUPPORTED;
- crypto_register(sc->sc_cid, algs, ubsec_newsession,
- ubsec_freesession, ubsec_process);
-
- /*
- * Reset Broadcom chip
- */
- ubsec_reset_board(sc);
-
- /*
- * Init Broadcom specific PCI settings
- */
- ubsec_init_pciregs(pa);
-
- /*
- * Init Broadcom chip
- */
- ubsec_init_board(sc);
-
- printf(": 3DES MD5 SHA1");
-
-#ifndef UBSEC_NO_RNG
- if (sc->sc_flags & UBS_FLAGS_RNG) {
- sc->sc_statmask |= BS_STAT_MCR2_DONE;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
- &sc->sc_rng.rng_q.q_mcr, 0))
- goto skip_rng;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_rngbypass),
- &sc->sc_rng.rng_q.q_ctx, 0)) {
- ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_mcr);
- goto skip_rng;
- }
-
- if (ubsec_dma_malloc(sc, sizeof(u_int32_t) *
- UBSEC_RNG_BUFSIZ, &sc->sc_rng.rng_buf, 0)) {
- ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_ctx);
- ubsec_dma_free(sc, &sc->sc_rng.rng_q.q_mcr);
- goto skip_rng;
- }
-
- timeout_set(&sc->sc_rngto, ubsec_rng, sc);
- if (hz >= 100)
- sc->sc_rnghz = hz / 100;
- else
- sc->sc_rnghz = 1;
- timeout_add(&sc->sc_rngto, sc->sc_rnghz);
- printf(" RNG");
-skip_rng:
- ;
- }
-#endif /* UBSEC_NO_RNG */
-
- if (sc->sc_flags & UBS_FLAGS_KEY) {
- sc->sc_statmask |= BS_STAT_MCR2_DONE;
-
- bzero(kalgs, sizeof(kalgs));
- kalgs[CRK_MOD_EXP] = CRYPTO_ALG_FLAG_SUPPORTED;
-#if 0
- kalgs[CRK_MOD_EXP_CRT] = CRYPTO_ALG_FLAG_SUPPORTED;
-#endif
-
- crypto_kregister(sc->sc_cid, kalgs, ubsec_kprocess);
- printf(" PK");
- }
-
- printf(", %s\n", intrstr);
-}
-
-/*
- * UBSEC Interrupt routine
- */
-int
-ubsec_intr(void *arg)
-{
- struct ubsec_softc *sc = arg;
- volatile u_int32_t stat;
- struct ubsec_q *q;
- struct ubsec_dma *dmap;
- int npkts = 0, i;
-
- stat = READ_REG(sc, BS_STAT);
-
- stat &= sc->sc_statmask;
- if (stat == 0)
- return (0);
-
- WRITE_REG(sc, BS_STAT, stat); /* IACK */
-
- /*
- * Check to see if we have any packets waiting for us
- */
- if ((stat & BS_STAT_MCR1_DONE)) {
- while (!SIMPLEQ_EMPTY(&sc->sc_qchip)) {
- q = SIMPLEQ_FIRST(&sc->sc_qchip);
- dmap = q->q_dma;
-
- if ((dmap->d_dma->d_mcr.mcr_flags & htole16(UBS_MCR_DONE)) == 0)
- break;
-
- SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, q_next);
-
- npkts = q->q_nstacked_mcrs;
- /*
- * search for further sc_qchip ubsec_q's that share
- * the same MCR, and complete them too, they must be
- * at the top.
- */
- for (i = 0; i < npkts; i++) {
- if(q->q_stacked_mcr[i])
- ubsec_callback(sc, q->q_stacked_mcr[i]);
- else
- break;
- }
- ubsec_callback(sc, q);
- }
-
- /*
- * Don't send any more packet to chip if there has been
- * a DMAERR.
- */
- if (!(stat & BS_STAT_DMAERR))
- ubsec_feed(sc);
- }
-
- /*
- * Check to see if we have any key setups/rng's waiting for us
- */
- if ((sc->sc_flags & (UBS_FLAGS_KEY|UBS_FLAGS_RNG)) &&
- (stat & BS_STAT_MCR2_DONE)) {
- struct ubsec_q2 *q2;
- struct ubsec_mcr *mcr;
-
- while (!SIMPLEQ_EMPTY(&sc->sc_qchip2)) {
- q2 = SIMPLEQ_FIRST(&sc->sc_qchip2);
-
- bus_dmamap_sync(sc->sc_dmat, q2->q_mcr.dma_map,
- 0, q2->q_mcr.dma_map->dm_mapsize,
- BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
-
- mcr = (struct ubsec_mcr *)q2->q_mcr.dma_vaddr;
- if ((mcr->mcr_flags & htole16(UBS_MCR_DONE)) == 0) {
- bus_dmamap_sync(sc->sc_dmat,
- q2->q_mcr.dma_map, 0,
- q2->q_mcr.dma_map->dm_mapsize,
- BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
- break;
- }
- SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip2, q_next);
- ubsec_callback2(sc, q2);
- /*
- * Don't send any more packet to chip if there has been
- * a DMAERR.
- */
- if (!(stat & BS_STAT_DMAERR))
- ubsec_feed2(sc);
- }
- }
-
- /*
- * Check to see if we got any DMA Error
- */
- if (stat & BS_STAT_DMAERR) {
-#ifdef UBSEC_DEBUG
- volatile u_int32_t a = READ_REG(sc, BS_ERR);
-
- printf("%s: dmaerr %s@%08x\n", sc->sc_dv.dv_xname,
- (a & BS_ERR_READ) ? "read" : "write", a & BS_ERR_ADDR);
-#endif /* UBSEC_DEBUG */
- ubsecstats.hst_dmaerr++;
- ubsec_totalreset(sc);
- ubsec_feed(sc);
- }
-
- return (1);
-}
-
-/*
- * ubsec_feed() - aggregate and post requests to chip
- * It is assumed that the caller set splnet()
- */
-void
-ubsec_feed(struct ubsec_softc *sc)
-{
-#ifdef UBSEC_DEBUG
- static int max;
-#endif /* UBSEC_DEBUG */
- struct ubsec_q *q, *q2;
- int npkts, i;
- void *v;
- u_int32_t stat;
-
- npkts = sc->sc_nqueue;
- if (npkts > UBS_MAX_AGGR)
- npkts = UBS_MAX_AGGR;
- if (npkts < 2)
- goto feed1;
-
- if ((stat = READ_REG(sc, BS_STAT)) & (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) {
- if(stat & BS_STAT_DMAERR) {
- ubsec_totalreset(sc);
- ubsecstats.hst_dmaerr++;
- }
- return;
- }
-
-#ifdef UBSEC_DEBUG
- printf("merging %d records\n", npkts);
-
- /* XXX temporary aggregation statistics reporting code */
- if (max < npkts) {
- max = npkts;
- printf("%s: new max aggregate %d\n", sc->sc_dv.dv_xname, max);
- }
-#endif /* UBSEC_DEBUG */
-
- q = SIMPLEQ_FIRST(&sc->sc_queue);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next);
- --sc->sc_nqueue;
-
- bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
- 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- if (q->q_dst_map != NULL)
- bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
- 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
-
- q->q_nstacked_mcrs = npkts - 1; /* Number of packets stacked */
-
- for (i = 0; i < q->q_nstacked_mcrs; i++) {
- q2 = SIMPLEQ_FIRST(&sc->sc_queue);
- bus_dmamap_sync(sc->sc_dmat, q2->q_src_map,
- 0, q2->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- if (q2->q_dst_map != NULL)
- bus_dmamap_sync(sc->sc_dmat, q2->q_dst_map,
- 0, q2->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next);
- --sc->sc_nqueue;
-
- v = ((char *)&q2->q_dma->d_dma->d_mcr) + sizeof(struct ubsec_mcr) -
- sizeof(struct ubsec_mcr_add);
- bcopy(v, &q->q_dma->d_dma->d_mcradd[i], sizeof(struct ubsec_mcr_add));
- q->q_stacked_mcr[i] = q2;
- }
- q->q_dma->d_dma->d_mcr.mcr_pkts = htole16(npkts);
- SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next);
- bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map,
- 0, q->q_dma->d_alloc.dma_map->dm_mapsize,
- BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
- WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_mcr));
- return;
-
-feed1:
- while (!SIMPLEQ_EMPTY(&sc->sc_queue)) {
- if ((stat = READ_REG(sc, BS_STAT)) &
- (BS_STAT_MCR1_FULL | BS_STAT_DMAERR)) {
- if(stat & BS_STAT_DMAERR) {
- ubsec_totalreset(sc);
- ubsecstats.hst_dmaerr++;
- }
- break;
- }
-
- q = SIMPLEQ_FIRST(&sc->sc_queue);
-
- bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
- 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- if (q->q_dst_map != NULL)
- bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
- 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_PREREAD);
- bus_dmamap_sync(sc->sc_dmat, q->q_dma->d_alloc.dma_map,
- 0, q->q_dma->d_alloc.dma_map->dm_mapsize,
- BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
-
- WRITE_REG(sc, BS_MCR1, q->q_dma->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_mcr));
-#ifdef UBSEC_DEBUG
- printf("feed: q->chip %p %08x\n", q,
- (u_int32_t)q->q_dma->d_alloc.dma_paddr);
-#endif /* UBSEC_DEBUG */
- SIMPLEQ_REMOVE_HEAD(&sc->sc_queue, q_next);
- --sc->sc_nqueue;
- SIMPLEQ_INSERT_TAIL(&sc->sc_qchip, q, q_next);
- }
-}
-
-/*
- * Allocate a new 'session' and return an encoded session id. 'sidp'
- * contains our registration id, and should contain an encoded session
- * id on successful allocation.
- */
-int
-ubsec_newsession(u_int32_t *sidp, struct cryptoini *cri)
-{
- struct cryptoini *c, *encini = NULL, *macini = NULL;
- struct ubsec_softc *sc = NULL;
- struct ubsec_session *ses = NULL;
- MD5_CTX md5ctx;
- SHA1_CTX sha1ctx;
- int i, sesn;
-
- if (sidp == NULL || cri == NULL)
- return (EINVAL);
-
- for (i = 0; i < ubsec_cd.cd_ndevs; i++) {
- sc = ubsec_cd.cd_devs[i];
- if (sc == NULL || sc->sc_cid == (*sidp))
- break;
- }
- if (sc == NULL)
- return (EINVAL);
-
- for (c = cri; c != NULL; c = c->cri_next) {
- if (c->cri_alg == CRYPTO_MD5_HMAC ||
- c->cri_alg == CRYPTO_SHA1_HMAC) {
- if (macini)
- return (EINVAL);
- macini = c;
- } else if (c->cri_alg == CRYPTO_DES_CBC ||
- c->cri_alg == CRYPTO_3DES_CBC) {
- if (encini)
- return (EINVAL);
- encini = c;
- } else
- return (EINVAL);
- }
- if (encini == NULL && macini == NULL)
- return (EINVAL);
-
- if (sc->sc_sessions == NULL) {
- ses = sc->sc_sessions = (struct ubsec_session *)malloc(
- sizeof(struct ubsec_session), M_DEVBUF, M_NOWAIT);
- if (ses == NULL)
- return (ENOMEM);
- sesn = 0;
- sc->sc_nsessions = 1;
- } else {
- for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
- if (sc->sc_sessions[sesn].ses_used == 0) {
- ses = &sc->sc_sessions[sesn];
- break;
- }
- }
-
- if (ses == NULL) {
- sesn = sc->sc_nsessions;
- ses = (struct ubsec_session *)malloc((sesn + 1) *
- sizeof(struct ubsec_session), M_DEVBUF, M_NOWAIT);
- if (ses == NULL)
- return (ENOMEM);
- bcopy(sc->sc_sessions, ses, sesn *
- sizeof(struct ubsec_session));
- bzero(sc->sc_sessions, sesn *
- sizeof(struct ubsec_session));
- free(sc->sc_sessions, M_DEVBUF);
- sc->sc_sessions = ses;
- ses = &sc->sc_sessions[sesn];
- sc->sc_nsessions++;
- }
- }
-
- bzero(ses, sizeof(struct ubsec_session));
- ses->ses_used = 1;
- if (encini) {
- /* get an IV, network byte order */
- arc4random_bytes(ses->ses_iv, sizeof(ses->ses_iv));
-
- /* Go ahead and compute key in ubsec's byte order */
- if (encini->cri_alg == CRYPTO_DES_CBC) {
- bcopy(encini->cri_key, &ses->ses_deskey[0], 8);
- bcopy(encini->cri_key, &ses->ses_deskey[2], 8);
- bcopy(encini->cri_key, &ses->ses_deskey[4], 8);
- } else
- bcopy(encini->cri_key, ses->ses_deskey, 24);
-
- SWAP32(ses->ses_deskey[0]);
- SWAP32(ses->ses_deskey[1]);
- SWAP32(ses->ses_deskey[2]);
- SWAP32(ses->ses_deskey[3]);
- SWAP32(ses->ses_deskey[4]);
- SWAP32(ses->ses_deskey[5]);
- }
-
- if (macini) {
- for (i = 0; i < macini->cri_klen / 8; i++)
- macini->cri_key[i] ^= HMAC_IPAD_VAL;
-
- if (macini->cri_alg == CRYPTO_MD5_HMAC) {
- MD5Init(&md5ctx);
- MD5Update(&md5ctx, macini->cri_key,
- macini->cri_klen / 8);
- MD5Update(&md5ctx, hmac_ipad_buffer,
- HMAC_BLOCK_LEN - (macini->cri_klen / 8));
- bcopy(md5ctx.state, ses->ses_hminner,
- sizeof(md5ctx.state));
- } else {
- SHA1Init(&sha1ctx);
- SHA1Update(&sha1ctx, macini->cri_key,
- macini->cri_klen / 8);
- SHA1Update(&sha1ctx, hmac_ipad_buffer,
- HMAC_BLOCK_LEN - (macini->cri_klen / 8));
- bcopy(sha1ctx.state, ses->ses_hminner,
- sizeof(sha1ctx.state));
- }
-
- for (i = 0; i < macini->cri_klen / 8; i++)
- macini->cri_key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
-
- if (macini->cri_alg == CRYPTO_MD5_HMAC) {
- MD5Init(&md5ctx);
- MD5Update(&md5ctx, macini->cri_key,
- macini->cri_klen / 8);
- MD5Update(&md5ctx, hmac_opad_buffer,
- HMAC_BLOCK_LEN - (macini->cri_klen / 8));
- bcopy(md5ctx.state, ses->ses_hmouter,
- sizeof(md5ctx.state));
- } else {
- SHA1Init(&sha1ctx);
- SHA1Update(&sha1ctx, macini->cri_key,
- macini->cri_klen / 8);
- SHA1Update(&sha1ctx, hmac_opad_buffer,
- HMAC_BLOCK_LEN - (macini->cri_klen / 8));
- bcopy(sha1ctx.state, ses->ses_hmouter,
- sizeof(sha1ctx.state));
- }
-
- for (i = 0; i < macini->cri_klen / 8; i++)
- macini->cri_key[i] ^= HMAC_OPAD_VAL;
- }
-
- *sidp = UBSEC_SID(sc->sc_dv.dv_unit, sesn);
- return (0);
-}
-
-/*
- * Deallocate a session.
- */
-int
-ubsec_freesession(u_int64_t tid)
-{
- struct ubsec_softc *sc;
- int card, session;
- u_int32_t sid = ((u_int32_t)tid) & 0xffffffff;
-
- card = UBSEC_CARD(sid);
- if (card >= ubsec_cd.cd_ndevs || ubsec_cd.cd_devs[card] == NULL)
- return (EINVAL);
- sc = ubsec_cd.cd_devs[card];
- session = UBSEC_SESSION(sid);
- bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session]));
- return (0);
-}
-
-int
-ubsec_process(struct cryptop *crp)
-{
- struct ubsec_q *q = NULL;
- int card, err = 0, i, j, s, nicealign;
- struct ubsec_softc *sc;
- struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
- int encoffset = 0, macoffset = 0, cpskip, cpoffset;
- int sskip, dskip, stheend, dtheend;
- int16_t coffset;
- struct ubsec_session *ses;
- struct ubsec_pktctx ctx;
- struct ubsec_dma *dmap = NULL;
-
- if (crp == NULL || crp->crp_callback == NULL) {
- ubsecstats.hst_invalid++;
- return (EINVAL);
- }
- card = UBSEC_CARD(crp->crp_sid);
- if (card >= ubsec_cd.cd_ndevs || ubsec_cd.cd_devs[card] == NULL) {
- ubsecstats.hst_invalid++;
- return (EINVAL);
- }
-
- sc = ubsec_cd.cd_devs[card];
-
- s = splnet();
-
- if (SIMPLEQ_EMPTY(&sc->sc_freequeue)) {
- ubsecstats.hst_queuefull++;
- splx(s);
- err = ENOMEM;
- goto errout2;
- }
-
- q = SIMPLEQ_FIRST(&sc->sc_freequeue);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_freequeue, q_next);
- splx(s);
-
- dmap = q->q_dma; /* Save dma pointer */
- bzero(q, sizeof(struct ubsec_q));
- bzero(&ctx, sizeof(ctx));
-
- q->q_sesn = UBSEC_SESSION(crp->crp_sid);
- q->q_dma = dmap;
- ses = &sc->sc_sessions[q->q_sesn];
-
- if (crp->crp_flags & CRYPTO_F_IMBUF) {
- q->q_src_m = (struct mbuf *)crp->crp_buf;
- q->q_dst_m = (struct mbuf *)crp->crp_buf;
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- q->q_src_io = (struct uio *)crp->crp_buf;
- q->q_dst_io = (struct uio *)crp->crp_buf;
- } else {
- err = EINVAL;
- goto errout; /* XXX we don't handle contiguous blocks! */
- }
-
- bzero(&dmap->d_dma->d_mcr, sizeof(struct ubsec_mcr));
-
- dmap->d_dma->d_mcr.mcr_pkts = htole16(1);
- dmap->d_dma->d_mcr.mcr_flags = 0;
- q->q_crp = crp;
-
- crd1 = crp->crp_desc;
- if (crd1 == NULL) {
- err = EINVAL;
- goto errout;
- }
- crd2 = crd1->crd_next;
-
- if (crd2 == NULL) {
- if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
- crd1->crd_alg == CRYPTO_SHA1_HMAC) {
- maccrd = crd1;
- enccrd = NULL;
- } else if (crd1->crd_alg == CRYPTO_DES_CBC ||
- crd1->crd_alg == CRYPTO_3DES_CBC) {
- maccrd = NULL;
- enccrd = crd1;
- } else {
- err = EINVAL;
- goto errout;
- }
- } else {
- if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
- crd1->crd_alg == CRYPTO_SHA1_HMAC) &&
- (crd2->crd_alg == CRYPTO_DES_CBC ||
- crd2->crd_alg == CRYPTO_3DES_CBC) &&
- ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
- maccrd = crd1;
- enccrd = crd2;
- } else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
- crd1->crd_alg == CRYPTO_3DES_CBC) &&
- (crd2->crd_alg == CRYPTO_MD5_HMAC ||
- crd2->crd_alg == CRYPTO_SHA1_HMAC) &&
- (crd1->crd_flags & CRD_F_ENCRYPT)) {
- enccrd = crd1;
- maccrd = crd2;
- } else {
- /*
- * We cannot order the ubsec as requested
- */
- err = EINVAL;
- goto errout;
- }
- }
-
- if (enccrd) {
- encoffset = enccrd->crd_skip;
- ctx.pc_flags |= htole16(UBS_PKTCTX_ENC_3DES);
-
- if (enccrd->crd_flags & CRD_F_ENCRYPT) {
- q->q_flags |= UBSEC_QFLAGS_COPYOUTIV;
-
- if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
- bcopy(enccrd->crd_iv, ctx.pc_iv, 8);
- else {
- ctx.pc_iv[0] = ses->ses_iv[0];
- ctx.pc_iv[1] = ses->ses_iv[1];
- }
-
- if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
- if (crp->crp_flags & CRYPTO_F_IMBUF)
- m_copyback(q->q_src_m,
- enccrd->crd_inject,
- 8, ctx.pc_iv);
- else if (crp->crp_flags & CRYPTO_F_IOV)
- cuio_copyback(q->q_src_io,
- enccrd->crd_inject,
- 8, ctx.pc_iv);
- }
- } else {
- ctx.pc_flags |= htole16(UBS_PKTCTX_INBOUND);
-
- if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
- bcopy(enccrd->crd_iv, ctx.pc_iv, 8);
- else if (crp->crp_flags & CRYPTO_F_IMBUF)
- m_copydata(q->q_src_m, enccrd->crd_inject,
- 8, (caddr_t)ctx.pc_iv);
- else if (crp->crp_flags & CRYPTO_F_IOV)
- cuio_copydata(q->q_src_io,
- enccrd->crd_inject, 8,
- (caddr_t)ctx.pc_iv);
- }
-
- ctx.pc_deskey[0] = ses->ses_deskey[0];
- ctx.pc_deskey[1] = ses->ses_deskey[1];
- ctx.pc_deskey[2] = ses->ses_deskey[2];
- ctx.pc_deskey[3] = ses->ses_deskey[3];
- ctx.pc_deskey[4] = ses->ses_deskey[4];
- ctx.pc_deskey[5] = ses->ses_deskey[5];
- SWAP32(ctx.pc_iv[0]);
- SWAP32(ctx.pc_iv[1]);
- }
-
- if (maccrd) {
- macoffset = maccrd->crd_skip;
-
- if (maccrd->crd_alg == CRYPTO_MD5_HMAC)
- ctx.pc_flags |= htole16(UBS_PKTCTX_AUTH_MD5);
- else
- ctx.pc_flags |= htole16(UBS_PKTCTX_AUTH_SHA1);
-
- for (i = 0; i < 5; i++) {
- ctx.pc_hminner[i] = ses->ses_hminner[i];
- ctx.pc_hmouter[i] = ses->ses_hmouter[i];
-
- HTOLE32(ctx.pc_hminner[i]);
- HTOLE32(ctx.pc_hmouter[i]);
- }
- }
-
- if (enccrd && maccrd) {
- /*
- * ubsec cannot handle packets where the end of encryption
- * and authentication are not the same, or where the
- * encrypted part begins before the authenticated part.
- */
- if (((encoffset + enccrd->crd_len) !=
- (macoffset + maccrd->crd_len)) ||
- (enccrd->crd_skip < maccrd->crd_skip)) {
- err = EINVAL;
- goto errout;
- }
- sskip = maccrd->crd_skip;
- cpskip = dskip = enccrd->crd_skip;
- stheend = maccrd->crd_len;
- dtheend = enccrd->crd_len;
- coffset = enccrd->crd_skip - maccrd->crd_skip;
- cpoffset = cpskip + dtheend;
-#ifdef UBSEC_DEBUG
- printf("mac: skip %d, len %d, inject %d\n",
- maccrd->crd_skip, maccrd->crd_len, maccrd->crd_inject);
- printf("enc: skip %d, len %d, inject %d\n",
- enccrd->crd_skip, enccrd->crd_len, enccrd->crd_inject);
- printf("src: skip %d, len %d\n", sskip, stheend);
- printf("dst: skip %d, len %d\n", dskip, dtheend);
- printf("ubs: coffset %d, pktlen %d, cpskip %d, cpoffset %d\n",
- coffset, stheend, cpskip, cpoffset);
-#endif
- } else {
- cpskip = dskip = sskip = macoffset + encoffset;
- dtheend = stheend = (enccrd)?enccrd->crd_len:maccrd->crd_len;
- cpoffset = cpskip + dtheend;
- coffset = 0;
- }
- ctx.pc_offset = htole16(coffset >> 2);
-
- if (bus_dmamap_create(sc->sc_dmat, 0xfff0, UBS_MAX_SCATTER,
- 0xfff0, 0, BUS_DMA_NOWAIT, &q->q_src_map) != 0) {
- err = ENOMEM;
- goto errout;
- }
- if (crp->crp_flags & CRYPTO_F_IMBUF) {
- if (bus_dmamap_load_mbuf(sc->sc_dmat, q->q_src_map,
- q->q_src_m, BUS_DMA_NOWAIT) != 0) {
- bus_dmamap_destroy(sc->sc_dmat, q->q_src_map);
- q->q_src_map = NULL;
- err = ENOMEM;
- goto errout;
- }
- } else if (crp->crp_flags & CRYPTO_F_IOV) {
- if (bus_dmamap_load_uio(sc->sc_dmat, q->q_src_map,
- q->q_src_io, BUS_DMA_NOWAIT) != 0) {
- bus_dmamap_destroy(sc->sc_dmat, q->q_src_map);
- q->q_src_map = NULL;
- err = ENOMEM;
- goto errout;
- }
- }
- nicealign = ubsec_dmamap_aligned(q->q_src_map);
-
- dmap->d_dma->d_mcr.mcr_pktlen = htole16(stheend);
-
-#ifdef UBSEC_DEBUG
- printf("src skip: %d\n", sskip);
-#endif
- for (i = j = 0; i < q->q_src_map->dm_nsegs; i++) {
- struct ubsec_pktbuf *pb;
- bus_size_t packl = q->q_src_map->dm_segs[i].ds_len;
- bus_addr_t packp = q->q_src_map->dm_segs[i].ds_addr;
-
- if (sskip >= packl) {
- sskip -= packl;
- continue;
- }
-
- packl -= sskip;
- packp += sskip;
- sskip = 0;
-
- if (packl > 0xfffc) {
- err = EIO;
- goto errout;
- }
-
- if (j == 0)
- pb = &dmap->d_dma->d_mcr.mcr_ipktbuf;
- else
- pb = &dmap->d_dma->d_sbuf[j - 1];
-
- pb->pb_addr = htole32(packp);
-
- if (stheend) {
- if (packl > stheend) {
- pb->pb_len = htole32(stheend);
- stheend = 0;
- } else {
- pb->pb_len = htole32(packl);
- stheend -= packl;
- }
- } else
- pb->pb_len = htole32(packl);
-
- if ((i + 1) == q->q_src_map->dm_nsegs)
- pb->pb_next = 0;
- else
- pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_sbuf[j]));
- j++;
- }
-
- if (enccrd == NULL && maccrd != NULL) {
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr = 0;
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_len = 0;
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_next =
- htole32(dmap->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_macbuf[0]));
-#ifdef UBSEC_DEBUG
- printf("opkt: %x %x %x\n",
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_addr,
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_len,
- dmap->d_dma->d_mcr.mcr_opktbuf.pb_next);
-#endif
- } else {
- if (crp->crp_flags & CRYPTO_F_IOV) {
- if (!nicealign) {
- err = EINVAL;
- goto errout;
- }
- if (bus_dmamap_create(sc->sc_dmat, 0xfff0,
- UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT,
- &q->q_dst_map) != 0) {
- err = ENOMEM;
- goto errout;
- }
- if (bus_dmamap_load_uio(sc->sc_dmat, q->q_dst_map,
- q->q_dst_io, BUS_DMA_NOWAIT) != 0) {
- bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map);
- q->q_dst_map = NULL;
- goto errout;
- }
- } else if (crp->crp_flags & CRYPTO_F_IMBUF) {
- if (nicealign) {
- q->q_dst_m = q->q_src_m;
- q->q_dst_map = q->q_src_map;
- } else {
- int totlen, len;
- struct mbuf *m, *top, **mp;
-
- totlen = q->q_src_map->dm_mapsize;
- if (q->q_src_m->m_flags & M_PKTHDR) {
- len = MHLEN;
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- } else {
- len = MLEN;
- MGET(m, M_DONTWAIT, MT_DATA);
- }
- if (m == NULL) {
- err = ENOMEM;
- goto errout;
- }
- if (len == MHLEN)
- M_DUP_PKTHDR(m, q->q_src_m);
- if (totlen >= MINCLSIZE) {
- MCLGET(m, M_DONTWAIT);
- if (m->m_flags & M_EXT)
- len = MCLBYTES;
- }
- m->m_len = len;
- top = NULL;
- mp = ⊤
-
- while (totlen > 0) {
- if (top) {
- MGET(m, M_DONTWAIT, MT_DATA);
- if (m == NULL) {
- m_freem(top);
- err = ENOMEM;
- goto errout;
- }
- len = MLEN;
- }
- if (top && totlen >= MINCLSIZE) {
- MCLGET(m, M_DONTWAIT);
- if (m->m_flags & M_EXT)
- len = MCLBYTES;
- }
- m->m_len = len = min(totlen, len);
- totlen -= len;
- *mp = m;
- mp = &m->m_next;
- }
- q->q_dst_m = top;
- ubsec_mcopy(q->q_src_m, q->q_dst_m,
- cpskip, cpoffset);
- if (bus_dmamap_create(sc->sc_dmat, 0xfff0,
- UBS_MAX_SCATTER, 0xfff0, 0, BUS_DMA_NOWAIT,
- &q->q_dst_map) != 0) {
- err = ENOMEM;
- goto errout;
- }
- if (bus_dmamap_load_mbuf(sc->sc_dmat,
- q->q_dst_map, q->q_dst_m,
- BUS_DMA_NOWAIT) != 0) {
- bus_dmamap_destroy(sc->sc_dmat,
- q->q_dst_map);
- q->q_dst_map = NULL;
- err = ENOMEM;
- goto errout;
- }
- }
- } else {
- err = EINVAL;
- goto errout;
- }
-
-#ifdef UBSEC_DEBUG
- printf("dst skip: %d\n", dskip);
-#endif
- for (i = j = 0; i < q->q_dst_map->dm_nsegs; i++) {
- struct ubsec_pktbuf *pb;
- bus_size_t packl = q->q_dst_map->dm_segs[i].ds_len;
- bus_addr_t packp = q->q_dst_map->dm_segs[i].ds_addr;
-
- if (dskip >= packl) {
- dskip -= packl;
- continue;
- }
-
- packl -= dskip;
- packp += dskip;
- dskip = 0;
-
- if (packl > 0xfffc) {
- err = EIO;
- goto errout;
- }
-
- if (j == 0)
- pb = &dmap->d_dma->d_mcr.mcr_opktbuf;
- else
- pb = &dmap->d_dma->d_dbuf[j - 1];
-
- pb->pb_addr = htole32(packp);
-
- if (dtheend) {
- if (packl > dtheend) {
- pb->pb_len = htole32(dtheend);
- dtheend = 0;
- } else {
- pb->pb_len = htole32(packl);
- dtheend -= packl;
- }
- } else
- pb->pb_len = htole32(packl);
-
- if ((i + 1) == q->q_dst_map->dm_nsegs) {
- if (maccrd)
- pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_macbuf[0]));
- else
- pb->pb_next = 0;
- } else
- pb->pb_next = htole32(dmap->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_dbuf[j]));
- j++;
- }
- }
-
- dmap->d_dma->d_mcr.mcr_cmdctxp = htole32(dmap->d_alloc.dma_paddr +
- offsetof(struct ubsec_dmachunk, d_ctx));
-
- if (sc->sc_flags & UBS_FLAGS_LONGCTX) {
- struct ubsec_pktctx_long *ctxl;
-
- ctxl = (struct ubsec_pktctx_long *)(dmap->d_alloc.dma_vaddr +
- offsetof(struct ubsec_dmachunk, d_ctx));
-
- /* transform small context into long context */
- ctxl->pc_len = htole16(sizeof(struct ubsec_pktctx_long));
- ctxl->pc_type = htole16(UBS_PKTCTX_TYPE_IPSEC);
- ctxl->pc_flags = ctx.pc_flags;
- ctxl->pc_offset = ctx.pc_offset;
- for (i = 0; i < 6; i++)
- ctxl->pc_deskey[i] = ctx.pc_deskey[i];
- for (i = 0; i < 5; i++)
- ctxl->pc_hminner[i] = ctx.pc_hminner[i];
- for (i = 0; i < 5; i++)
- ctxl->pc_hmouter[i] = ctx.pc_hmouter[i];
- ctxl->pc_iv[0] = ctx.pc_iv[0];
- ctxl->pc_iv[1] = ctx.pc_iv[1];
- } else
- bcopy(&ctx, dmap->d_alloc.dma_vaddr +
- offsetof(struct ubsec_dmachunk, d_ctx),
- sizeof(struct ubsec_pktctx));
-
- s = splnet();
- SIMPLEQ_INSERT_TAIL(&sc->sc_queue, q, q_next);
- sc->sc_nqueue++;
- ubsecstats.hst_ipackets++;
- ubsecstats.hst_ibytes += dmap->d_alloc.dma_map->dm_mapsize;
- ubsec_feed(sc);
- splx(s);
- return (0);
-
-errout:
- if (q != NULL) {
- if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m))
- m_freem(q->q_dst_m);
-
- if (q->q_dst_map != NULL && q->q_dst_map != q->q_src_map) {
- bus_dmamap_unload(sc->sc_dmat, q->q_dst_map);
- bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map);
- }
- if (q->q_src_map != NULL) {
- bus_dmamap_unload(sc->sc_dmat, q->q_src_map);
- bus_dmamap_destroy(sc->sc_dmat, q->q_src_map);
- }
-
- s = splnet();
- SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
- splx(s);
- }
- if (err == EINVAL)
- ubsecstats.hst_invalid++;
- else
- ubsecstats.hst_nomem++;
-errout2:
- crp->crp_etype = err;
- crypto_done(crp);
- return (0);
-}
-
-void
-ubsec_callback(struct ubsec_softc *sc, struct ubsec_q *q)
-{
- struct cryptop *crp = (struct cryptop *)q->q_crp;
- struct cryptodesc *crd;
- struct ubsec_dma *dmap = q->q_dma;
-
- ubsecstats.hst_opackets++;
- ubsecstats.hst_obytes += dmap->d_alloc.dma_size;
-
- bus_dmamap_sync(sc->sc_dmat, dmap->d_alloc.dma_map, 0,
- dmap->d_alloc.dma_map->dm_mapsize,
- BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
- if (q->q_dst_map != NULL && q->q_dst_map != q->q_src_map) {
- bus_dmamap_sync(sc->sc_dmat, q->q_dst_map,
- 0, q->q_dst_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
- bus_dmamap_unload(sc->sc_dmat, q->q_dst_map);
- bus_dmamap_destroy(sc->sc_dmat, q->q_dst_map);
- }
- bus_dmamap_sync(sc->sc_dmat, q->q_src_map,
- 0, q->q_src_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
- bus_dmamap_unload(sc->sc_dmat, q->q_src_map);
- bus_dmamap_destroy(sc->sc_dmat, q->q_src_map);
-
- if ((crp->crp_flags & CRYPTO_F_IMBUF) && (q->q_src_m != q->q_dst_m)) {
- m_freem(q->q_src_m);
- crp->crp_buf = (caddr_t)q->q_dst_m;
- }
-
- /* copy out IV for future use */
- if (q->q_flags & UBSEC_QFLAGS_COPYOUTIV) {
- for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
- if (crd->crd_alg != CRYPTO_DES_CBC &&
- crd->crd_alg != CRYPTO_3DES_CBC)
- continue;
- if (crp->crp_flags & CRYPTO_F_IMBUF)
- m_copydata((struct mbuf *)crp->crp_buf,
- crd->crd_skip + crd->crd_len - 8, 8,
- (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv);
- else if (crp->crp_flags & CRYPTO_F_IOV) {
- cuio_copydata((struct uio *)crp->crp_buf,
- crd->crd_skip + crd->crd_len - 8, 8,
- (caddr_t)sc->sc_sessions[q->q_sesn].ses_iv);
- }
- break;
- }
- }
-
- for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
- if (crd->crd_alg != CRYPTO_MD5_HMAC &&
- crd->crd_alg != CRYPTO_SHA1_HMAC)
- continue;
- if (crp->crp_flags & CRYPTO_F_IMBUF)
- m_copyback((struct mbuf *)crp->crp_buf,
- crd->crd_inject, 12,
- dmap->d_dma->d_macbuf);
- else if (crp->crp_flags & CRYPTO_F_IOV && crp->crp_mac)
- bcopy((caddr_t)dmap->d_dma->d_macbuf,
- crp->crp_mac, 12);
- break;
- }
- SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
- crypto_done(crp);
-}
-
-void
-ubsec_mcopy(struct mbuf *srcm, struct mbuf *dstm, int hoffset, int toffset)
-{
- int i, j, dlen, slen;
- caddr_t dptr, sptr;
-
- j = 0;
- sptr = srcm->m_data;
- slen = srcm->m_len;
- dptr = dstm->m_data;
- dlen = dstm->m_len;
-
- while (1) {
- for (i = 0; i < min(slen, dlen); i++) {
- if (j < hoffset || j >= toffset)
- *dptr++ = *sptr++;
- slen--;
- dlen--;
- j++;
- }
- if (slen == 0) {
- srcm = srcm->m_next;
- if (srcm == NULL)
- return;
- sptr = srcm->m_data;
- slen = srcm->m_len;
- }
- if (dlen == 0) {
- dstm = dstm->m_next;
- if (dstm == NULL)
- return;
- dptr = dstm->m_data;
- dlen = dstm->m_len;
- }
- }
-}
-
-/*
- * feed the key generator, must be called at splnet() or higher.
- */
-void
-ubsec_feed2(struct ubsec_softc *sc)
-{
- struct ubsec_q2 *q;
-
- while (!SIMPLEQ_EMPTY(&sc->sc_queue2)) {
- if (READ_REG(sc, BS_STAT) & BS_STAT_MCR2_FULL)
- break;
- q = SIMPLEQ_FIRST(&sc->sc_queue2);
-
- bus_dmamap_sync(sc->sc_dmat, q->q_mcr.dma_map, 0,
- q->q_mcr.dma_map->dm_mapsize,
- BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, q->q_ctx.dma_map, 0,
- q->q_ctx.dma_map->dm_mapsize,
- BUS_DMASYNC_PREWRITE);
-
- WRITE_REG(sc, BS_MCR2, q->q_mcr.dma_paddr);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_queue2, q_next);
- --sc->sc_nqueue2;
- SIMPLEQ_INSERT_TAIL(&sc->sc_qchip2, q, q_next);
- }
-}
-
-/*
- * Callback for handling random numbers
- */
-void
-ubsec_callback2(struct ubsec_softc *sc, struct ubsec_q2 *q)
-{
- struct cryptkop *krp;
- struct ubsec_ctx_keyop *ctx;
-
- ctx = (struct ubsec_ctx_keyop *)q->q_ctx.dma_vaddr;
- bus_dmamap_sync(sc->sc_dmat, q->q_ctx.dma_map, 0,
- q->q_ctx.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
-
- switch (q->q_type) {
-#ifndef UBSEC_NO_RNG
- case UBS_CTXOP_RNGSHA1:
- case UBS_CTXOP_RNGBYPASS: {
- struct ubsec_q2_rng *rng = (struct ubsec_q2_rng *)q;
- u_int32_t *p;
- int i;
-
- bus_dmamap_sync(sc->sc_dmat, rng->rng_buf.dma_map, 0,
- rng->rng_buf.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
- p = (u_int32_t *)rng->rng_buf.dma_vaddr;
- for (i = 0; i < UBSEC_RNG_BUFSIZ; p++, i++)
- add_true_randomness(*p);
- rng->rng_used = 0;
- timeout_add(&sc->sc_rngto, sc->sc_rnghz);
- break;
- }
-#endif
- case UBS_CTXOP_MODEXP: {
- struct ubsec_q2_modexp *me = (struct ubsec_q2_modexp *)q;
- u_int rlen, clen;
-
- krp = me->me_krp;
- rlen = (me->me_modbits + 7) / 8;
- clen = (krp->krp_param[krp->krp_iparams].crp_nbits + 7) / 8;
-
- bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
- 0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
- 0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
- 0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
- bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
- 0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
-
- if (clen < rlen)
- krp->krp_status = E2BIG;
- else {
- if (sc->sc_flags & UBS_FLAGS_HWNORM) {
- bzero(krp->krp_param[krp->krp_iparams].crp_p,
- (krp->krp_param[krp->krp_iparams].crp_nbits
- + 7) / 8);
- bcopy(me->me_C.dma_vaddr,
- krp->krp_param[krp->krp_iparams].crp_p,
- (me->me_modbits + 7) / 8);
- } else
- ubsec_kshift_l(me->me_shiftbits,
- me->me_C.dma_vaddr, me->me_normbits,
- krp->krp_param[krp->krp_iparams].crp_p,
- krp->krp_param[krp->krp_iparams].crp_nbits);
- }
- crypto_kdone(krp);
-
- /* bzero all potentially sensitive data */
- bzero(me->me_E.dma_vaddr, me->me_E.dma_size);
- bzero(me->me_M.dma_vaddr, me->me_M.dma_size);
- bzero(me->me_C.dma_vaddr, me->me_C.dma_size);
- bzero(me->me_q.q_ctx.dma_vaddr, me->me_q.q_ctx.dma_size);
-
- /* Can't free here, so put us on the free list. */
- SIMPLEQ_INSERT_TAIL(&sc->sc_q2free, &me->me_q, q_next);
- break;
- }
- case UBS_CTXOP_RSAPRIV: {
- struct ubsec_q2_rsapriv *rp = (struct ubsec_q2_rsapriv *)q;
- u_int len;
-
- krp = rp->rpr_krp;
- bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgin.dma_map, 0,
- rp->rpr_msgin.dma_map->dm_mapsize, BUS_DMASYNC_POSTWRITE);
- bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgout.dma_map, 0,
- rp->rpr_msgout.dma_map->dm_mapsize, BUS_DMASYNC_POSTREAD);
-
- len = (krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT].crp_nbits + 7) / 8;
- bcopy(rp->rpr_msgout.dma_vaddr,
- krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT].crp_p, len);
-
- crypto_kdone(krp);
-
- bzero(rp->rpr_msgin.dma_vaddr, rp->rpr_msgin.dma_size);
- bzero(rp->rpr_msgout.dma_vaddr, rp->rpr_msgout.dma_size);
- bzero(rp->rpr_q.q_ctx.dma_vaddr, rp->rpr_q.q_ctx.dma_size);
-
- /* Can't free here, so put us on the free list. */
- SIMPLEQ_INSERT_TAIL(&sc->sc_q2free, &rp->rpr_q, q_next);
- break;
- }
- default:
- printf("%s: unknown ctx op: %x\n", sc->sc_dv.dv_xname,
- letoh16(ctx->ctx_op));
- break;
- }
-}
-
-#ifndef UBSEC_NO_RNG
-void
-ubsec_rng(void *vsc)
-{
- struct ubsec_softc *sc = vsc;
- struct ubsec_q2_rng *rng = &sc->sc_rng;
- struct ubsec_mcr *mcr;
- struct ubsec_ctx_rngbypass *ctx;
- int s;
-
- s = splnet();
- if (rng->rng_used) {
- splx(s);
- return;
- }
- sc->sc_nqueue2++;
- if (sc->sc_nqueue2 >= UBS_MAX_NQUEUE)
- goto out;
-
- mcr = (struct ubsec_mcr *)rng->rng_q.q_mcr.dma_vaddr;
- ctx = (struct ubsec_ctx_rngbypass *)rng->rng_q.q_ctx.dma_vaddr;
-
- mcr->mcr_pkts = htole16(1);
- mcr->mcr_flags = 0;
- mcr->mcr_cmdctxp = htole32(rng->rng_q.q_ctx.dma_paddr);
- mcr->mcr_ipktbuf.pb_addr = mcr->mcr_ipktbuf.pb_next = 0;
- mcr->mcr_ipktbuf.pb_len = 0;
- mcr->mcr_reserved = mcr->mcr_pktlen = 0;
- mcr->mcr_opktbuf.pb_addr = htole32(rng->rng_buf.dma_paddr);
- mcr->mcr_opktbuf.pb_len = htole32(((sizeof(u_int32_t) * UBSEC_RNG_BUFSIZ)) &
- UBS_PKTBUF_LEN);
- mcr->mcr_opktbuf.pb_next = 0;
-
- ctx->rbp_len = htole16(sizeof(struct ubsec_ctx_rngbypass));
- ctx->rbp_op = htole16(UBS_CTXOP_RNGSHA1);
- rng->rng_q.q_type = UBS_CTXOP_RNGSHA1;
-
- bus_dmamap_sync(sc->sc_dmat, rng->rng_buf.dma_map, 0,
- rng->rng_buf.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
-
- SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &rng->rng_q, q_next);
- rng->rng_used = 1;
- ubsec_feed2(sc);
- splx(s);
-
- return;
-
-out:
- /*
- * Something weird happened, generate our own call back.
- */
- sc->sc_nqueue2--;
- splx(s);
- timeout_add(&sc->sc_rngto, sc->sc_rnghz);
-}
-#endif /* UBSEC_NO_RNG */
-
-int
-ubsec_dma_malloc(struct ubsec_softc *sc, bus_size_t size,
- struct ubsec_dma_alloc *dma, int mapflags)
-{
- int r;
-
- if ((r = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0,
- &dma->dma_seg, 1, &dma->dma_nseg, BUS_DMA_NOWAIT)) != 0)
- goto fail_0;
-
- if ((r = bus_dmamem_map(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg,
- size, &dma->dma_vaddr, mapflags | BUS_DMA_NOWAIT)) != 0)
- goto fail_1;
-
- if ((r = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
- BUS_DMA_NOWAIT, &dma->dma_map)) != 0)
- goto fail_2;
-
- if ((r = bus_dmamap_load(sc->sc_dmat, dma->dma_map, dma->dma_vaddr,
- size, NULL, BUS_DMA_NOWAIT)) != 0)
- goto fail_3;
-
- dma->dma_paddr = dma->dma_map->dm_segs[0].ds_addr;
- dma->dma_size = size;
- return (0);
-
-fail_3:
- bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
-fail_2:
- bus_dmamem_unmap(sc->sc_dmat, dma->dma_vaddr, size);
-fail_1:
- bus_dmamem_free(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg);
-fail_0:
- dma->dma_map = NULL;
- return (r);
-}
-
-void
-ubsec_dma_free(struct ubsec_softc *sc, struct ubsec_dma_alloc *dma)
-{
- bus_dmamap_unload(sc->sc_dmat, dma->dma_map);
- bus_dmamem_unmap(sc->sc_dmat, dma->dma_vaddr, dma->dma_size);
- bus_dmamem_free(sc->sc_dmat, &dma->dma_seg, dma->dma_nseg);
- bus_dmamap_destroy(sc->sc_dmat, dma->dma_map);
-}
-
-/*
- * Resets the board. Values in the regesters are left as is
- * from the reset (i.e. initial values are assigned elsewhere).
- */
-void
-ubsec_reset_board(struct ubsec_softc *sc)
-{
- volatile u_int32_t ctrl;
-
- ctrl = READ_REG(sc, BS_CTRL);
- ctrl |= BS_CTRL_RESET;
- WRITE_REG(sc, BS_CTRL, ctrl);
-
- /*
- * Wait aprox. 30 PCI clocks = 900 ns = 0.9 us
- */
- DELAY(10);
-}
-
-/*
- * Init Broadcom registers
- */
-void
-ubsec_init_board(struct ubsec_softc *sc)
-{
- u_int32_t ctrl;
-
- ctrl = READ_REG(sc, BS_CTRL);
- ctrl &= ~(BS_CTRL_BE32 | BS_CTRL_BE64);
- ctrl |= BS_CTRL_LITTLE_ENDIAN | BS_CTRL_MCR1INT;
-
- if (sc->sc_flags & UBS_FLAGS_KEY)
- ctrl |= BS_CTRL_MCR2INT;
- else
- ctrl &= ~BS_CTRL_MCR2INT;
-
- if (sc->sc_flags & UBS_FLAGS_HWNORM)
- ctrl &= ~BS_CTRL_SWNORM;
-
- WRITE_REG(sc, BS_CTRL, ctrl);
-}
-
-/*
- * Init Broadcom PCI registers
- */
-void
-ubsec_init_pciregs(struct pci_attach_args *pa)
-{
- pci_chipset_tag_t pc = pa->pa_pc;
- u_int32_t misc;
-
- /*
- * This will set the cache line size to 1, this will
- * force the BCM58xx chip just to do burst read/writes.
- * Cache line read/writes are to slow
- */
- misc = pci_conf_read(pc, pa->pa_tag, PCI_BHLC_REG);
- misc = (misc & ~(PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT))
- | ((UBS_DEF_CACHELINE & 0xff) << PCI_CACHELINE_SHIFT);
- pci_conf_write(pc, pa->pa_tag, PCI_BHLC_REG, misc);
-}
-
-/*
- * Clean up after a chip crash.
- * It is assumed that the caller is in splnet()
- */
-void
-ubsec_cleanchip(struct ubsec_softc *sc)
-{
- struct ubsec_q *q;
-
- while (!SIMPLEQ_EMPTY(&sc->sc_qchip)) {
- q = SIMPLEQ_FIRST(&sc->sc_qchip);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_qchip, q_next);
- ubsec_free_q(sc, q);
- }
-}
-
-/*
- * free a ubsec_q
- * It is assumed that the caller is within splnet()
- */
-int
-ubsec_free_q(struct ubsec_softc *sc, struct ubsec_q *q)
-{
- struct ubsec_q *q2;
- struct cryptop *crp;
- int npkts;
- int i;
-
- npkts = q->q_nstacked_mcrs;
-
- for (i = 0; i < npkts; i++) {
- if(q->q_stacked_mcr[i]) {
- q2 = q->q_stacked_mcr[i];
-
- if ((q2->q_dst_m != NULL) && (q2->q_src_m != q2->q_dst_m))
- m_freem(q2->q_dst_m);
-
- crp = (struct cryptop *)q2->q_crp;
-
- SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q2, q_next);
-
- crp->crp_etype = EFAULT;
- crypto_done(crp);
- } else {
- break;
- }
- }
-
- /*
- * Free header MCR
- */
- if ((q->q_dst_m != NULL) && (q->q_src_m != q->q_dst_m))
- m_freem(q->q_dst_m);
-
- crp = (struct cryptop *)q->q_crp;
-
- SIMPLEQ_INSERT_TAIL(&sc->sc_freequeue, q, q_next);
-
- crp->crp_etype = EFAULT;
- crypto_done(crp);
- return(0);
-}
-
-/*
- * Routine to reset the chip and clean up.
- * It is assumed that the caller is in splnet()
- */
-void
-ubsec_totalreset(struct ubsec_softc *sc)
-{
- ubsec_reset_board(sc);
- ubsec_init_board(sc);
- ubsec_cleanchip(sc);
-}
-
-int
-ubsec_dmamap_aligned(bus_dmamap_t map)
-{
- int i;
-
- for (i = 0; i < map->dm_nsegs; i++) {
- if (map->dm_segs[i].ds_addr & 3)
- return (0);
- if ((i != (map->dm_nsegs - 1)) &&
- (map->dm_segs[i].ds_len & 3))
- return (0);
- }
- return (1);
-}
-
-struct ubsec_softc *
-ubsec_kfind(struct cryptkop *krp)
-{
- struct ubsec_softc *sc;
- int i;
-
- for (i = 0; i < ubsec_cd.cd_ndevs; i++) {
- sc = ubsec_cd.cd_devs[i];
- if (sc == NULL)
- continue;
- if (sc->sc_cid == krp->krp_hid)
- return (sc);
- }
- return (NULL);
-}
-
-void
-ubsec_kfree(struct ubsec_softc *sc, struct ubsec_q2 *q)
-{
- switch (q->q_type) {
- case UBS_CTXOP_MODEXP: {
- struct ubsec_q2_modexp *me = (struct ubsec_q2_modexp *)q;
-
- ubsec_dma_free(sc, &me->me_q.q_mcr);
- ubsec_dma_free(sc, &me->me_q.q_ctx);
- ubsec_dma_free(sc, &me->me_M);
- ubsec_dma_free(sc, &me->me_E);
- ubsec_dma_free(sc, &me->me_C);
- ubsec_dma_free(sc, &me->me_epb);
- free(me, M_DEVBUF);
- break;
- }
- case UBS_CTXOP_RSAPRIV: {
- struct ubsec_q2_rsapriv *rp = (struct ubsec_q2_rsapriv *)q;
-
- ubsec_dma_free(sc, &rp->rpr_q.q_mcr);
- ubsec_dma_free(sc, &rp->rpr_q.q_ctx);
- ubsec_dma_free(sc, &rp->rpr_msgin);
- ubsec_dma_free(sc, &rp->rpr_msgout);
- free(rp, M_DEVBUF);
- break;
- }
- default:
- printf("%s: invalid kfree 0x%x\n", sc->sc_dv.dv_xname,
- q->q_type);
- break;
- }
-}
-
-int
-ubsec_kprocess(struct cryptkop *krp)
-{
- struct ubsec_softc *sc;
- int r;
-
- if (krp == NULL || krp->krp_callback == NULL)
- return (EINVAL);
- if ((sc = ubsec_kfind(krp)) == NULL)
- return (EINVAL);
-
- while (!SIMPLEQ_EMPTY(&sc->sc_q2free)) {
- struct ubsec_q2 *q;
-
- q = SIMPLEQ_FIRST(&sc->sc_q2free);
- SIMPLEQ_REMOVE_HEAD(&sc->sc_q2free, q_next);
- ubsec_kfree(sc, q);
- }
-
- switch (krp->krp_op) {
- case CRK_MOD_EXP:
- if (sc->sc_flags & UBS_FLAGS_HWNORM)
- r = ubsec_kprocess_modexp_hw(sc, krp);
- else
- r = ubsec_kprocess_modexp_sw(sc, krp);
- break;
- case CRK_MOD_EXP_CRT:
- r = ubsec_kprocess_rsapriv(sc, krp);
- break;
- default:
- printf("%s: kprocess: invalid op 0x%x\n",
- sc->sc_dv.dv_xname, krp->krp_op);
- krp->krp_status = EOPNOTSUPP;
- crypto_kdone(krp);
- r = 0;
- }
- return (r);
-}
-
-/*
- * Start computation of cr[C] = (cr[M] ^ cr[E]) mod cr[N] (sw normalization)
- */
-int
-ubsec_kprocess_modexp_sw(struct ubsec_softc *sc, struct cryptkop *krp)
-{
- struct ubsec_q2_modexp *me;
- struct ubsec_mcr *mcr;
- struct ubsec_ctx_modexp *ctx;
- struct ubsec_pktbuf *epb;
- int err = 0, s;
- u_int nbits, normbits, mbits, shiftbits, ebits;
-
- me = malloc(sizeof *me, M_DEVBUF, M_NOWAIT | M_ZERO);
- if (me == NULL) {
- err = ENOMEM;
- goto errout;
- }
- me->me_krp = krp;
- me->me_q.q_type = UBS_CTXOP_MODEXP;
-
- nbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_N]);
- if (nbits <= 512)
- normbits = 512;
- else if (nbits <= 768)
- normbits = 768;
- else if (nbits <= 1024)
- normbits = 1024;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 1536)
- normbits = 1536;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 2048)
- normbits = 2048;
- else {
- err = E2BIG;
- goto errout;
- }
-
- shiftbits = normbits - nbits;
-
- me->me_modbits = nbits;
- me->me_shiftbits = shiftbits;
- me->me_normbits = normbits;
-
- /* Sanity check: result bits must be >= true modulus bits. */
- if (krp->krp_param[krp->krp_iparams].crp_nbits < nbits) {
- err = ERANGE;
- goto errout;
- }
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
- &me->me_q.q_mcr, 0)) {
- err = ENOMEM;
- goto errout;
- }
- mcr = (struct ubsec_mcr *)me->me_q.q_mcr.dma_vaddr;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_modexp),
- &me->me_q.q_ctx, 0)) {
- err = ENOMEM;
- goto errout;
- }
-
- mbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_M]);
- if (mbits > nbits) {
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_M, 0)) {
- err = ENOMEM;
- goto errout;
- }
- ubsec_kshift_r(shiftbits,
- krp->krp_param[UBS_MODEXP_PAR_M].crp_p, mbits,
- me->me_M.dma_vaddr, normbits);
-
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_C, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(me->me_C.dma_vaddr, me->me_C.dma_size);
-
- ebits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_E]);
- if (ebits > nbits) {
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_E, 0)) {
- err = ENOMEM;
- goto errout;
- }
- ubsec_kshift_r(shiftbits,
- krp->krp_param[UBS_MODEXP_PAR_E].crp_p, ebits,
- me->me_E.dma_vaddr, normbits);
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_pktbuf),
- &me->me_epb, 0)) {
- err = ENOMEM;
- goto errout;
- }
- epb = (struct ubsec_pktbuf *)me->me_epb.dma_vaddr;
- epb->pb_addr = htole32(me->me_E.dma_paddr);
- epb->pb_next = 0;
- epb->pb_len = htole32(normbits / 8);
-
-#ifdef UBSEC_DEBUG
- printf("Epb ");
- ubsec_dump_pb(epb);
-#endif
-
- mcr->mcr_pkts = htole16(1);
- mcr->mcr_flags = 0;
- mcr->mcr_cmdctxp = htole32(me->me_q.q_ctx.dma_paddr);
- mcr->mcr_reserved = 0;
- mcr->mcr_pktlen = 0;
-
- mcr->mcr_ipktbuf.pb_addr = htole32(me->me_M.dma_paddr);
- mcr->mcr_ipktbuf.pb_len = htole32(normbits / 8);
- mcr->mcr_ipktbuf.pb_next = htole32(me->me_epb.dma_paddr);
-
- mcr->mcr_opktbuf.pb_addr = htole32(me->me_C.dma_paddr);
- mcr->mcr_opktbuf.pb_next = 0;
- mcr->mcr_opktbuf.pb_len = htole32(normbits / 8);
-
-#ifdef DIAGNOSTIC
- /* Misaligned output buffer will hang the chip. */
- if ((letoh32(mcr->mcr_opktbuf.pb_addr) & 3) != 0)
- panic("%s: modexp invalid addr 0x%x",
- sc->sc_dv.dv_xname, letoh32(mcr->mcr_opktbuf.pb_addr));
- if ((letoh32(mcr->mcr_opktbuf.pb_len) & 3) != 0)
- panic("%s: modexp invalid len 0x%x",
- sc->sc_dv.dv_xname, letoh32(mcr->mcr_opktbuf.pb_len));
-#endif
-
- ctx = (struct ubsec_ctx_modexp *)me->me_q.q_ctx.dma_vaddr;
- bzero(ctx, sizeof(*ctx));
- ubsec_kshift_r(shiftbits,
- krp->krp_param[UBS_MODEXP_PAR_N].crp_p, nbits,
- ctx->me_N, normbits);
- ctx->me_len = htole16((normbits / 8) + (4 * sizeof(u_int16_t)));
- ctx->me_op = htole16(UBS_CTXOP_MODEXP);
- ctx->me_E_len = htole16(nbits);
- ctx->me_N_len = htole16(nbits);
-
-#ifdef UBSEC_DEBUG
- ubsec_dump_mcr(mcr);
- ubsec_dump_ctx2((struct ubsec_ctx_keyop *)ctx);
-#endif
-
- /*
- * ubsec_feed2 will sync mcr and ctx, we just need to sync
- * everything else.
- */
- bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
- 0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
- 0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
- 0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
- bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
- 0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
-
- /* Enqueue and we're done... */
- s = splnet();
- SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &me->me_q, q_next);
- ubsec_feed2(sc);
- splx(s);
-
- return (0);
-
-errout:
- if (me != NULL) {
- if (me->me_q.q_mcr.dma_map != NULL)
- ubsec_dma_free(sc, &me->me_q.q_mcr);
- if (me->me_q.q_ctx.dma_map != NULL) {
- bzero(me->me_q.q_ctx.dma_vaddr, me->me_q.q_ctx.dma_size);
- ubsec_dma_free(sc, &me->me_q.q_ctx);
- }
- if (me->me_M.dma_map != NULL) {
- bzero(me->me_M.dma_vaddr, me->me_M.dma_size);
- ubsec_dma_free(sc, &me->me_M);
- }
- if (me->me_E.dma_map != NULL) {
- bzero(me->me_E.dma_vaddr, me->me_E.dma_size);
- ubsec_dma_free(sc, &me->me_E);
- }
- if (me->me_C.dma_map != NULL) {
- bzero(me->me_C.dma_vaddr, me->me_C.dma_size);
- ubsec_dma_free(sc, &me->me_C);
- }
- if (me->me_epb.dma_map != NULL)
- ubsec_dma_free(sc, &me->me_epb);
- free(me, M_DEVBUF);
- }
- krp->krp_status = err;
- crypto_kdone(krp);
- return (0);
-}
-
-/*
- * Start computation of cr[C] = (cr[M] ^ cr[E]) mod cr[N] (hw normalization)
- */
-int
-ubsec_kprocess_modexp_hw(struct ubsec_softc *sc, struct cryptkop *krp)
-{
- struct ubsec_q2_modexp *me;
- struct ubsec_mcr *mcr;
- struct ubsec_ctx_modexp *ctx;
- struct ubsec_pktbuf *epb;
- int err = 0, s;
- u_int nbits, normbits, mbits, shiftbits, ebits;
-
- me = malloc(sizeof *me, M_DEVBUF, M_NOWAIT | M_ZERO);
- if (me == NULL) {
- err = ENOMEM;
- goto errout;
- }
- me->me_krp = krp;
- me->me_q.q_type = UBS_CTXOP_MODEXP;
-
- nbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_N]);
- if (nbits <= 512)
- normbits = 512;
- else if (nbits <= 768)
- normbits = 768;
- else if (nbits <= 1024)
- normbits = 1024;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 1536)
- normbits = 1536;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && nbits <= 2048)
- normbits = 2048;
- else {
- err = E2BIG;
- goto errout;
- }
-
- shiftbits = normbits - nbits;
-
- /* XXX ??? */
- me->me_modbits = nbits;
- me->me_shiftbits = shiftbits;
- me->me_normbits = normbits;
-
- /* Sanity check: result bits must be >= true modulus bits. */
- if (krp->krp_param[krp->krp_iparams].crp_nbits < nbits) {
- err = ERANGE;
- goto errout;
- }
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
- &me->me_q.q_mcr, 0)) {
- err = ENOMEM;
- goto errout;
- }
- mcr = (struct ubsec_mcr *)me->me_q.q_mcr.dma_vaddr;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_modexp),
- &me->me_q.q_ctx, 0)) {
- err = ENOMEM;
- goto errout;
- }
-
- mbits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_M]);
- if (mbits > nbits) {
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_M, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(me->me_M.dma_vaddr, normbits / 8);
- bcopy(krp->krp_param[UBS_MODEXP_PAR_M].crp_p,
- me->me_M.dma_vaddr, (mbits + 7) / 8);
-
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_C, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(me->me_C.dma_vaddr, me->me_C.dma_size);
-
- ebits = ubsec_ksigbits(&krp->krp_param[UBS_MODEXP_PAR_E]);
- if (ebits > nbits) {
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, normbits / 8, &me->me_E, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(me->me_E.dma_vaddr, normbits / 8);
- bcopy(krp->krp_param[UBS_MODEXP_PAR_E].crp_p,
- me->me_E.dma_vaddr, (ebits + 7) / 8);
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_pktbuf),
- &me->me_epb, 0)) {
- err = ENOMEM;
- goto errout;
- }
- epb = (struct ubsec_pktbuf *)me->me_epb.dma_vaddr;
- epb->pb_addr = htole32(me->me_E.dma_paddr);
- epb->pb_next = 0;
- epb->pb_len = htole32((ebits + 7) / 8);
-
-#ifdef UBSEC_DEBUG
- printf("Epb ");
- ubsec_dump_pb(epb);
-#endif
-
- mcr->mcr_pkts = htole16(1);
- mcr->mcr_flags = 0;
- mcr->mcr_cmdctxp = htole32(me->me_q.q_ctx.dma_paddr);
- mcr->mcr_reserved = 0;
- mcr->mcr_pktlen = 0;
-
- mcr->mcr_ipktbuf.pb_addr = htole32(me->me_M.dma_paddr);
- mcr->mcr_ipktbuf.pb_len = htole32(normbits / 8);
- mcr->mcr_ipktbuf.pb_next = htole32(me->me_epb.dma_paddr);
-
- mcr->mcr_opktbuf.pb_addr = htole32(me->me_C.dma_paddr);
- mcr->mcr_opktbuf.pb_next = 0;
- mcr->mcr_opktbuf.pb_len = htole32(normbits / 8);
-
-#ifdef DIAGNOSTIC
- /* Misaligned output buffer will hang the chip. */
- if ((letoh32(mcr->mcr_opktbuf.pb_addr) & 3) != 0)
- panic("%s: modexp invalid addr 0x%x",
- sc->sc_dv.dv_xname, letoh32(mcr->mcr_opktbuf.pb_addr));
- if ((letoh32(mcr->mcr_opktbuf.pb_len) & 3) != 0)
- panic("%s: modexp invalid len 0x%x",
- sc->sc_dv.dv_xname, letoh32(mcr->mcr_opktbuf.pb_len));
-#endif
-
- ctx = (struct ubsec_ctx_modexp *)me->me_q.q_ctx.dma_vaddr;
- bzero(ctx, sizeof(*ctx));
- bcopy(krp->krp_param[UBS_MODEXP_PAR_N].crp_p, ctx->me_N,
- (nbits + 7) / 8);
- ctx->me_len = htole16((normbits / 8) + (4 * sizeof(u_int16_t)));
- ctx->me_op = htole16(UBS_CTXOP_MODEXP);
- ctx->me_E_len = htole16(ebits);
- ctx->me_N_len = htole16(nbits);
-
-#ifdef UBSEC_DEBUG
- ubsec_dump_mcr(mcr);
- ubsec_dump_ctx2((struct ubsec_ctx_keyop *)ctx);
-#endif
-
- /*
- * ubsec_feed2 will sync mcr and ctx, we just need to sync
- * everything else.
- */
- bus_dmamap_sync(sc->sc_dmat, me->me_M.dma_map,
- 0, me->me_M.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_E.dma_map,
- 0, me->me_E.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, me->me_C.dma_map,
- 0, me->me_C.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
- bus_dmamap_sync(sc->sc_dmat, me->me_epb.dma_map,
- 0, me->me_epb.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
-
- /* Enqueue and we're done... */
- s = splnet();
- SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &me->me_q, q_next);
- ubsec_feed2(sc);
- splx(s);
-
- return (0);
-
-errout:
- if (me != NULL) {
- if (me->me_q.q_mcr.dma_map != NULL)
- ubsec_dma_free(sc, &me->me_q.q_mcr);
- if (me->me_q.q_ctx.dma_map != NULL) {
- bzero(me->me_q.q_ctx.dma_vaddr, me->me_q.q_ctx.dma_size);
- ubsec_dma_free(sc, &me->me_q.q_ctx);
- }
- if (me->me_M.dma_map != NULL) {
- bzero(me->me_M.dma_vaddr, me->me_M.dma_size);
- ubsec_dma_free(sc, &me->me_M);
- }
- if (me->me_E.dma_map != NULL) {
- bzero(me->me_E.dma_vaddr, me->me_E.dma_size);
- ubsec_dma_free(sc, &me->me_E);
- }
- if (me->me_C.dma_map != NULL) {
- bzero(me->me_C.dma_vaddr, me->me_C.dma_size);
- ubsec_dma_free(sc, &me->me_C);
- }
- if (me->me_epb.dma_map != NULL)
- ubsec_dma_free(sc, &me->me_epb);
- free(me, M_DEVBUF);
- }
- krp->krp_status = err;
- crypto_kdone(krp);
- return (0);
-}
-
-int
-ubsec_kprocess_rsapriv(struct ubsec_softc *sc, struct cryptkop *krp)
-{
- struct ubsec_q2_rsapriv *rp = NULL;
- struct ubsec_mcr *mcr;
- struct ubsec_ctx_rsapriv *ctx;
- int err = 0, s;
- u_int padlen, msglen;
-
- msglen = ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_P]);
- padlen = ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_Q]);
- if (msglen > padlen)
- padlen = msglen;
-
- if (padlen <= 256)
- padlen = 256;
- else if (padlen <= 384)
- padlen = 384;
- else if (padlen <= 512)
- padlen = 512;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && padlen <= 768)
- padlen = 768;
- else if (sc->sc_flags & UBS_FLAGS_BIGKEY && padlen <= 1024)
- padlen = 1024;
- else {
- err = E2BIG;
- goto errout;
- }
-
- if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_DP]) > padlen) {
- err = E2BIG;
- goto errout;
- }
-
- if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_DQ]) > padlen) {
- err = E2BIG;
- goto errout;
- }
-
- if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_PINV]) > padlen) {
- err = E2BIG;
- goto errout;
- }
-
- rp = malloc(sizeof *rp, M_DEVBUF, M_NOWAIT | M_ZERO);
- if (rp == NULL)
- return (ENOMEM);
- rp->rpr_krp = krp;
- rp->rpr_q.q_type = UBS_CTXOP_RSAPRIV;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_mcr),
- &rp->rpr_q.q_mcr, 0)) {
- err = ENOMEM;
- goto errout;
- }
- mcr = (struct ubsec_mcr *)rp->rpr_q.q_mcr.dma_vaddr;
-
- if (ubsec_dma_malloc(sc, sizeof(struct ubsec_ctx_rsapriv),
- &rp->rpr_q.q_ctx, 0)) {
- err = ENOMEM;
- goto errout;
- }
- ctx = (struct ubsec_ctx_rsapriv *)rp->rpr_q.q_ctx.dma_vaddr;
- bzero(ctx, sizeof *ctx);
-
- /* Copy in p */
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_P].crp_p,
- &ctx->rpr_buf[0 * (padlen / 8)],
- (krp->krp_param[UBS_RSAPRIV_PAR_P].crp_nbits + 7) / 8);
-
- /* Copy in q */
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_Q].crp_p,
- &ctx->rpr_buf[1 * (padlen / 8)],
- (krp->krp_param[UBS_RSAPRIV_PAR_Q].crp_nbits + 7) / 8);
-
- /* Copy in dp */
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_DP].crp_p,
- &ctx->rpr_buf[2 * (padlen / 8)],
- (krp->krp_param[UBS_RSAPRIV_PAR_DP].crp_nbits + 7) / 8);
-
- /* Copy in dq */
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_DQ].crp_p,
- &ctx->rpr_buf[3 * (padlen / 8)],
- (krp->krp_param[UBS_RSAPRIV_PAR_DQ].crp_nbits + 7) / 8);
-
- /* Copy in pinv */
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_PINV].crp_p,
- &ctx->rpr_buf[4 * (padlen / 8)],
- (krp->krp_param[UBS_RSAPRIV_PAR_PINV].crp_nbits + 7) / 8);
-
- msglen = padlen * 2;
-
- /* Copy in input message (aligned buffer/length). */
- if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_MSGIN]) > msglen) {
- /* Is this likely? */
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, (msglen + 7) / 8, &rp->rpr_msgin, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(rp->rpr_msgin.dma_vaddr, (msglen + 7) / 8);
- bcopy(krp->krp_param[UBS_RSAPRIV_PAR_MSGIN].crp_p,
- rp->rpr_msgin.dma_vaddr,
- (krp->krp_param[UBS_RSAPRIV_PAR_MSGIN].crp_nbits + 7) / 8);
-
- /* Prepare space for output message (aligned buffer/length). */
- if (ubsec_ksigbits(&krp->krp_param[UBS_RSAPRIV_PAR_MSGOUT]) < msglen) {
- /* Is this likely? */
- err = E2BIG;
- goto errout;
- }
- if (ubsec_dma_malloc(sc, (msglen + 7) / 8, &rp->rpr_msgout, 0)) {
- err = ENOMEM;
- goto errout;
- }
- bzero(rp->rpr_msgout.dma_vaddr, (msglen + 7) / 8);
-
- mcr->mcr_pkts = htole16(1);
- mcr->mcr_flags = 0;
- mcr->mcr_cmdctxp = htole32(rp->rpr_q.q_ctx.dma_paddr);
- mcr->mcr_ipktbuf.pb_addr = htole32(rp->rpr_msgin.dma_paddr);
- mcr->mcr_ipktbuf.pb_next = 0;
- mcr->mcr_ipktbuf.pb_len = htole32(rp->rpr_msgin.dma_size);
- mcr->mcr_reserved = 0;
- mcr->mcr_pktlen = htole16(msglen);
- mcr->mcr_opktbuf.pb_addr = htole32(rp->rpr_msgout.dma_paddr);
- mcr->mcr_opktbuf.pb_next = 0;
- mcr->mcr_opktbuf.pb_len = htole32(rp->rpr_msgout.dma_size);
-
-#ifdef DIAGNOSTIC
- if (rp->rpr_msgin.dma_paddr & 3 || rp->rpr_msgin.dma_size & 3) {
- panic("%s: rsapriv: invalid msgin %p(0x%x)",
- sc->sc_dv.dv_xname, rp->rpr_msgin.dma_paddr,
- rp->rpr_msgin.dma_size);
- }
- if (rp->rpr_msgout.dma_paddr & 3 || rp->rpr_msgout.dma_size & 3) {
- panic("%s: rsapriv: invalid msgout %p(0x%x)",
- sc->sc_dv.dv_xname, rp->rpr_msgout.dma_paddr,
- rp->rpr_msgout.dma_size);
- }
-#endif
-
- ctx->rpr_len = (sizeof(u_int16_t) * 4) + (5 * (padlen / 8));
- ctx->rpr_op = htole16(UBS_CTXOP_RSAPRIV);
- ctx->rpr_q_len = htole16(padlen);
- ctx->rpr_p_len = htole16(padlen);
-
- /*
- * ubsec_feed2 will sync mcr and ctx, we just need to sync
- * everything else.
- */
- bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgin.dma_map,
- 0, rp->rpr_msgin.dma_map->dm_mapsize, BUS_DMASYNC_PREWRITE);
- bus_dmamap_sync(sc->sc_dmat, rp->rpr_msgout.dma_map,
- 0, rp->rpr_msgout.dma_map->dm_mapsize, BUS_DMASYNC_PREREAD);
-
- /* Enqueue and we're done... */
- s = splnet();
- SIMPLEQ_INSERT_TAIL(&sc->sc_queue2, &rp->rpr_q, q_next);
- ubsec_feed2(sc);
- splx(s);
- return (0);
-
-errout:
- if (rp != NULL) {
- if (rp->rpr_q.q_mcr.dma_map != NULL)
- ubsec_dma_free(sc, &rp->rpr_q.q_mcr);
- if (rp->rpr_msgin.dma_map != NULL) {
- bzero(rp->rpr_msgin.dma_vaddr, rp->rpr_msgin.dma_size);
- ubsec_dma_free(sc, &rp->rpr_msgin);
- }
- if (rp->rpr_msgout.dma_map != NULL) {
- bzero(rp->rpr_msgout.dma_vaddr, rp->rpr_msgout.dma_size);
- ubsec_dma_free(sc, &rp->rpr_msgout);
- }
- free(rp, M_DEVBUF);
- }
- krp->krp_status = err;
- crypto_kdone(krp);
- return (0);
-}
-
-void
-ubsec_dump_pb(struct ubsec_pktbuf *pb)
-{
- printf("addr 0x%x (0x%x) next 0x%x\n",
- pb->pb_addr, pb->pb_len, pb->pb_next);
-}
-
-void
-ubsec_dump_ctx2(struct ubsec_ctx_keyop *c)
-{
- printf("CTX (0x%x):\n", c->ctx_len);
- switch (letoh16(c->ctx_op)) {
- case UBS_CTXOP_RNGBYPASS:
- case UBS_CTXOP_RNGSHA1:
- break;
- case UBS_CTXOP_MODEXP:
- {
- struct ubsec_ctx_modexp *cx = (void *)c;
- int i, len;
-
- printf(" Elen %u, Nlen %u\n",
- letoh16(cx->me_E_len), letoh16(cx->me_N_len));
- len = (cx->me_N_len + 7)/8;
- for (i = 0; i < len; i++)
- printf("%s%02x", (i == 0) ? " N: " : ":", cx->me_N[i]);
- printf("\n");
- break;
- }
- default:
- printf("unknown context: %x\n", c->ctx_op);
- }
- printf("END CTX\n");
-}
-
-void
-ubsec_dump_mcr(struct ubsec_mcr *mcr)
-{
- struct ubsec_mcr_add *ma;
- int i;
-
- printf("MCR:\n");
- printf(" pkts: %u, flags 0x%x\n",
- letoh16(mcr->mcr_pkts), letoh16(mcr->mcr_flags));
- ma = (struct ubsec_mcr_add *)&mcr->mcr_cmdctxp;
- for (i = 0; i < letoh16(mcr->mcr_pkts); i++) {
- printf(" %d: ctx 0x%x len 0x%x rsvd 0x%x\n", i,
- letoh32(ma->mcr_cmdctxp), letoh16(ma->mcr_pktlen),
- letoh16(ma->mcr_reserved));
- printf(" %d: ipkt ", i);
- ubsec_dump_pb(&ma->mcr_ipktbuf);
- printf(" %d: opkt ", i);
- ubsec_dump_pb(&ma->mcr_opktbuf);
- ma++;
- }
- printf("END MCR\n");
-}
-
-/*
- * Return the number of significant bits of a big number.
- */
-int
-ubsec_ksigbits(struct crparam *cr)
-{
- u_int plen = (cr->crp_nbits + 7) / 8;
- int i, sig = plen * 8;
- u_int8_t c, *p = cr->crp_p;
-
- for (i = plen - 1; i >= 0; i--) {
- c = p[i];
- if (c != 0) {
- while ((c & 0x80) == 0) {
- sig--;
- c <<= 1;
- }
- break;
- }
- sig -= 8;
- }
- return (sig);
-}
-
-void
-ubsec_kshift_r(u_int shiftbits, u_int8_t *src, u_int srcbits,
- u_int8_t *dst, u_int dstbits)
-{
- u_int slen, dlen;
- int i, si, di, n;
-
- slen = (srcbits + 7) / 8;
- dlen = (dstbits + 7) / 8;
-
- for (i = 0; i < slen; i++)
- dst[i] = src[i];
- for (i = 0; i < dlen - slen; i++)
- dst[slen + i] = 0;
-
- n = shiftbits / 8;
- if (n != 0) {
- si = dlen - n - 1;
- di = dlen - 1;
- while (si >= 0)
- dst[di--] = dst[si--];
- while (di >= 0)
- dst[di--] = 0;
- }
-
- n = shiftbits % 8;
- if (n != 0) {
- for (i = dlen - 1; i > 0; i--)
- dst[i] = (dst[i] << n) |
- (dst[i - 1] >> (8 - n));
- dst[0] = dst[0] << n;
- }
-}
-
-void
-ubsec_kshift_l(u_int shiftbits, u_int8_t *src, u_int srcbits,
- u_int8_t *dst, u_int dstbits)
-{
- int slen, dlen, i, n;
-
- slen = (srcbits + 7) / 8;
- dlen = (dstbits + 7) / 8;
-
- n = shiftbits / 8;
- for (i = 0; i < slen; i++)
- dst[i] = src[i + n];
- for (i = 0; i < dlen - slen; i++)
- dst[slen + i] = 0;
-
- n = shiftbits % 8;
- if (n != 0) {
- for (i = 0; i < (dlen - 1); i++)
- dst[i] = (dst[i] >> n) | (dst[i + 1] << (8 - n));
- dst[dlen - 1] = dst[dlen - 1] >> n;
- }
-}
projects / openwrt / staging / nbd.git / commitdiff