diff options
Diffstat (limited to 'package/ubsec_ssb/src/openbsd/ubsec.c')
| -rw-r--r-- | package/ubsec_ssb/src/openbsd/ubsec.c | 2511 |
1 files changed, 0 insertions, 2511 deletions
diff --git a/package/ubsec_ssb/src/openbsd/ubsec.c b/package/ubsec_ssb/src/openbsd/ubsec.c deleted file mode 100644 index f0716d8dd3..0000000000 --- a/package/ubsec_ssb/src/openbsd/ubsec.c +++ /dev/null @@ -1,2511 +0,0 @@ -/* $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; - } -} |