summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--sys/conf/files.i3862
-rw-r--r--sys/dev/glxsb/glxsb.c958
-rw-r--r--sys/dev/glxsb/glxsb.h57
-rw-r--r--sys/dev/glxsb/glxsb_hash.c183
-rw-r--r--sys/i386/conf/NOTES6
-rw-r--r--sys/modules/Makefile2
-rw-r--r--sys/modules/glxsb/Makefile9
7 files changed, 1217 insertions, 0 deletions
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index bfc9aac..917fc74 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -175,6 +175,8 @@ dev/fdc/fdc_acpi.c optional fdc
dev/fdc/fdc_isa.c optional fdc isa
dev/fdc/fdc_pccard.c optional fdc pccard
dev/fe/if_fe_isa.c optional fe isa
+dev/glxsb/glxsb.c optional glxsb
+dev/glxsb/glxsb_hash.c optional glxsb
dev/hptmv/entry.c optional hptmv
dev/hptmv/mv.c optional hptmv
dev/hptmv/gui_lib.c optional hptmv
diff --git a/sys/dev/glxsb/glxsb.c b/sys/dev/glxsb/glxsb.c
new file mode 100644
index 0000000..7eeaa2e
--- /dev/null
+++ b/sys/dev/glxsb/glxsb.c
@@ -0,0 +1,958 @@
+/* $OpenBSD: glxsb.c,v 1.7 2007/02/12 14:31:45 tom Exp $ */
+
+/*
+ * Copyright (c) 2006 Tom Cosgrove <tom@openbsd.org>
+ * Copyright (c) 2003, 2004 Theo de Raadt
+ * Copyright (c) 2003 Jason Wright
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Driver for the security block on the AMD Geode LX processors
+ * http://www.amd.com/files/connectivitysolutions/geode/geode_lx/33234d_lx_ds.pdf
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/errno.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mbuf.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/proc.h>
+#include <sys/random.h>
+#include <sys/rman.h>
+#include <sys/sysctl.h>
+#include <sys/taskqueue.h>
+
+#include <machine/bus.h>
+#include <machine/cpufunc.h>
+#include <machine/resource.h>
+
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcireg.h>
+
+#include <opencrypto/cryptodev.h>
+#include <opencrypto/cryptosoft.h>
+#include <opencrypto/xform.h>
+
+#include "cryptodev_if.h"
+#include "glxsb.h"
+
+#define PCI_VENDOR_AMD 0x1022 /* AMD */
+#define PCI_PRODUCT_AMD_GEODE_LX_CRYPTO 0x2082 /* Geode LX Crypto */
+
+#define SB_GLD_MSR_CAP 0x58002000 /* RO - Capabilities */
+#define SB_GLD_MSR_CONFIG 0x58002001 /* RW - Master Config */
+#define SB_GLD_MSR_SMI 0x58002002 /* RW - SMI */
+#define SB_GLD_MSR_ERROR 0x58002003 /* RW - Error */
+#define SB_GLD_MSR_PM 0x58002004 /* RW - Power Mgmt */
+#define SB_GLD_MSR_DIAG 0x58002005 /* RW - Diagnostic */
+#define SB_GLD_MSR_CTRL 0x58002006 /* RW - Security Block Cntrl */
+
+ /* For GLD_MSR_CTRL: */
+#define SB_GMC_DIV0 0x0000 /* AES update divisor values */
+#define SB_GMC_DIV1 0x0001
+#define SB_GMC_DIV2 0x0002
+#define SB_GMC_DIV3 0x0003
+#define SB_GMC_DIV_MASK 0x0003
+#define SB_GMC_SBI 0x0004 /* AES swap bits */
+#define SB_GMC_SBY 0x0008 /* AES swap bytes */
+#define SB_GMC_TW 0x0010 /* Time write (EEPROM) */
+#define SB_GMC_T_SEL0 0x0000 /* RNG post-proc: none */
+#define SB_GMC_T_SEL1 0x0100 /* RNG post-proc: LFSR */
+#define SB_GMC_T_SEL2 0x0200 /* RNG post-proc: whitener */
+#define SB_GMC_T_SEL3 0x0300 /* RNG LFSR+whitener */
+#define SB_GMC_T_SEL_MASK 0x0300
+#define SB_GMC_T_NE 0x0400 /* Noise (generator) Enable */
+#define SB_GMC_T_TM 0x0800 /* RNG test mode */
+ /* (deterministic) */
+
+/* Security Block configuration/control registers (offsets from base) */
+#define SB_CTL_A 0x0000 /* RW - SB Control A */
+#define SB_CTL_B 0x0004 /* RW - SB Control B */
+#define SB_AES_INT 0x0008 /* RW - SB AES Interrupt */
+#define SB_SOURCE_A 0x0010 /* RW - Source A */
+#define SB_DEST_A 0x0014 /* RW - Destination A */
+#define SB_LENGTH_A 0x0018 /* RW - Length A */
+#define SB_SOURCE_B 0x0020 /* RW - Source B */
+#define SB_DEST_B 0x0024 /* RW - Destination B */
+#define SB_LENGTH_B 0x0028 /* RW - Length B */
+#define SB_WKEY 0x0030 /* WO - Writable Key 0-3 */
+#define SB_WKEY_0 0x0030 /* WO - Writable Key 0 */
+#define SB_WKEY_1 0x0034 /* WO - Writable Key 1 */
+#define SB_WKEY_2 0x0038 /* WO - Writable Key 2 */
+#define SB_WKEY_3 0x003C /* WO - Writable Key 3 */
+#define SB_CBC_IV 0x0040 /* RW - CBC IV 0-3 */
+#define SB_CBC_IV_0 0x0040 /* RW - CBC IV 0 */
+#define SB_CBC_IV_1 0x0044 /* RW - CBC IV 1 */
+#define SB_CBC_IV_2 0x0048 /* RW - CBC IV 2 */
+#define SB_CBC_IV_3 0x004C /* RW - CBC IV 3 */
+#define SB_RANDOM_NUM 0x0050 /* RW - Random Number */
+#define SB_RANDOM_NUM_STATUS 0x0054 /* RW - Random Number Status */
+#define SB_EEPROM_COMM 0x0800 /* RW - EEPROM Command */
+#define SB_EEPROM_ADDR 0x0804 /* RW - EEPROM Address */
+#define SB_EEPROM_DATA 0x0808 /* RW - EEPROM Data */
+#define SB_EEPROM_SEC_STATE 0x080C /* RW - EEPROM Security State */
+
+ /* For SB_CTL_A and _B */
+#define SB_CTL_ST 0x0001 /* Start operation (enc/dec) */
+#define SB_CTL_ENC 0x0002 /* Encrypt (0 is decrypt) */
+#define SB_CTL_DEC 0x0000 /* Decrypt */
+#define SB_CTL_WK 0x0004 /* Use writable key (we set) */
+#define SB_CTL_DC 0x0008 /* Destination coherent */
+#define SB_CTL_SC 0x0010 /* Source coherent */
+#define SB_CTL_CBC 0x0020 /* CBC (0 is ECB) */
+
+ /* For SB_AES_INT */
+#define SB_AI_DISABLE_AES_A 0x0001 /* Disable AES A compl int */
+#define SB_AI_ENABLE_AES_A 0x0000 /* Enable AES A compl int */
+#define SB_AI_DISABLE_AES_B 0x0002 /* Disable AES B compl int */
+#define SB_AI_ENABLE_AES_B 0x0000 /* Enable AES B compl int */
+#define SB_AI_DISABLE_EEPROM 0x0004 /* Disable EEPROM op comp int */
+#define SB_AI_ENABLE_EEPROM 0x0000 /* Enable EEPROM op compl int */
+#define SB_AI_AES_A_COMPLETE 0x10000 /* AES A operation complete */
+#define SB_AI_AES_B_COMPLETE 0x20000 /* AES B operation complete */
+#define SB_AI_EEPROM_COMPLETE 0x40000 /* EEPROM operation complete */
+
+#define SB_AI_CLEAR_INTR \
+ (SB_AI_DISABLE_AES_A | SB_AI_DISABLE_AES_B |\
+ SB_AI_DISABLE_EEPROM | SB_AI_AES_A_COMPLETE |\
+ SB_AI_AES_B_COMPLETE | SB_AI_EEPROM_COMPLETE)
+
+#define SB_RNS_TRNG_VALID 0x0001 /* in SB_RANDOM_NUM_STATUS */
+
+#define SB_MEM_SIZE 0x0810 /* Size of memory block */
+
+#define SB_AES_ALIGN 0x0010 /* Source and dest buffers */
+ /* must be 16-byte aligned */
+#define SB_AES_BLOCK_SIZE 0x0010
+
+/*
+ * The Geode LX security block AES acceleration doesn't perform scatter-
+ * gather: it just takes source and destination addresses. Therefore the
+ * plain- and ciphertexts need to be contiguous. To this end, we allocate
+ * a buffer for both, and accept the overhead of copying in and out. If
+ * the number of bytes in one operation is bigger than allowed for by the
+ * buffer (buffer is twice the size of the max length, as it has both input
+ * and output) then we have to perform multiple encryptions/decryptions.
+ */
+
+#define GLXSB_MAX_AES_LEN 16384
+
+MALLOC_DEFINE(M_GLXSB, "glxsb_data", "Glxsb Data");
+
+struct glxsb_dma_map {
+ bus_dmamap_t dma_map; /* DMA map */
+ bus_dma_segment_t dma_seg; /* segments */
+ int dma_nsegs; /* #segments */
+ int dma_size; /* size */
+ caddr_t dma_vaddr; /* virtual address */
+ bus_addr_t dma_paddr; /* physical address */
+};
+
+struct glxsb_taskop {
+ struct glxsb_session *to_ses; /* crypto session */
+ struct cryptop *to_crp; /* cryptop to perfom */
+ struct cryptodesc *to_enccrd; /* enccrd to perform */
+ struct cryptodesc *to_maccrd; /* maccrd to perform */
+};
+
+struct glxsb_softc {
+ device_t sc_dev; /* device backpointer */
+ struct resource *sc_sr; /* resource */
+ int sc_rid; /* resource rid */
+ struct callout sc_rngco; /* RNG callout */
+ int sc_rnghz; /* RNG callout ticks */
+ bus_dma_tag_t sc_dmat; /* DMA tag */
+ struct glxsb_dma_map sc_dma; /* DMA map */
+ int32_t sc_cid; /* crypto tag */
+ uint32_t sc_sid; /* session id */
+ TAILQ_HEAD(ses_head, glxsb_session)
+ sc_sessions; /* crypto sessions */
+ struct mtx sc_sessions_mtx;/* sessions mutex */
+ struct mtx sc_task_mtx; /* task mutex */
+ struct taskqueue *sc_tq; /* task queue */
+ struct task sc_cryptotask; /* task */
+ struct glxsb_taskop sc_to; /* task's crypto operation */
+ int sc_task_count; /* tasks count */
+};
+
+static int glxsb_probe(device_t);
+static int glxsb_attach(device_t);
+static int glxsb_detach(device_t);
+
+static void glxsb_dmamap_cb(void *, bus_dma_segment_t *, int, int);
+static int glxsb_dma_alloc(struct glxsb_softc *);
+static void glxsb_dma_pre_op(struct glxsb_softc *, struct glxsb_dma_map *);
+static void glxsb_dma_post_op(struct glxsb_softc *, struct glxsb_dma_map *);
+static void glxsb_dma_free(struct glxsb_softc *, struct glxsb_dma_map *);
+
+static void glxsb_rnd(void *);
+static int glxsb_crypto_setup(struct glxsb_softc *);
+static int glxsb_crypto_newsession(device_t, uint32_t *, struct cryptoini *);
+static int glxsb_crypto_freesession(device_t, uint64_t);
+static int glxsb_aes(struct glxsb_softc *, uint32_t, uint32_t,
+ uint32_t, void *, int, void *);
+
+static int glxsb_crypto_encdec(struct cryptop *, struct cryptodesc *,
+ struct glxsb_session *, struct glxsb_softc *);
+
+static void glxsb_crypto_task(void *, int);
+static int glxsb_crypto_process(device_t, struct cryptop *, int);
+
+static device_method_t glxsb_methods[] = {
+ /* device interface */
+ DEVMETHOD(device_probe, glxsb_probe),
+ DEVMETHOD(device_attach, glxsb_attach),
+ DEVMETHOD(device_detach, glxsb_detach),
+
+ /* crypto device methods */
+ DEVMETHOD(cryptodev_newsession, glxsb_crypto_newsession),
+ DEVMETHOD(cryptodev_freesession, glxsb_crypto_freesession),
+ DEVMETHOD(cryptodev_process, glxsb_crypto_process),
+
+ {0,0}
+};
+
+static driver_t glxsb_driver = {
+ "glxsb",
+ glxsb_methods,
+ sizeof (struct glxsb_softc)
+};
+
+static devclass_t glxsb_devclass;
+
+DRIVER_MODULE(glxsb, pci, glxsb_driver, glxsb_devclass, 0, 0);
+MODULE_VERSION(glxsb, 1);
+MODULE_DEPEND(glxsb, crypto, 1, 1, 1);
+
+static int
+glxsb_probe(device_t dev)
+{
+
+ if (pci_get_vendor(dev) == PCI_VENDOR_AMD &&
+ pci_get_device(dev) == PCI_PRODUCT_AMD_GEODE_LX_CRYPTO) {
+ device_set_desc(dev,
+ "AMD Geode LX Security Block (AES-128-CBC, RNG)");
+ return (BUS_PROBE_DEFAULT);
+ }
+
+ return (ENXIO);
+}
+
+static int
+glxsb_attach(device_t dev)
+{
+ struct glxsb_softc *sc = device_get_softc(dev);
+ uint64_t msr;
+
+ sc->sc_dev = dev;
+ msr = rdmsr(SB_GLD_MSR_CAP);
+
+ if ((msr & 0xFFFF00) != 0x130400) {
+ device_printf(dev, "unknown ID 0x%x\n",
+ (int)((msr & 0xFFFF00) >> 16));
+ goto fail0;
+ }
+
+ pci_enable_busmaster(dev);
+
+ /* Map in the security block configuration/control registers */
+ sc->sc_rid = PCIR_BAR(0);
+ sc->sc_sr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->sc_rid,
+ RF_ACTIVE);
+ if (sc->sc_sr == NULL) {
+ device_printf(dev, "cannot map register space\n");
+ goto fail0;
+ }
+
+ /*
+ * Configure the Security Block.
+ *
+ * We want to enable the noise generator (T_NE), and enable the
+ * linear feedback shift register and whitener post-processing
+ * (T_SEL = 3). Also ensure that test mode (deterministic values)
+ * is disabled.
+ */
+ msr = rdmsr(SB_GLD_MSR_CTRL);
+ msr &= ~(SB_GMC_T_TM | SB_GMC_T_SEL_MASK);
+ msr |= SB_GMC_T_NE | SB_GMC_T_SEL3;
+#if 0
+ msr |= SB_GMC_SBI | SB_GMC_SBY; /* for AES, if necessary */
+#endif
+ wrmsr(SB_GLD_MSR_CTRL, msr);
+
+ /* Disable interrupts */
+ bus_write_4(sc->sc_sr, SB_AES_INT, SB_AI_CLEAR_INTR);
+
+ /* Allocate a contiguous DMA-able buffer to work in */
+ if (glxsb_dma_alloc(sc) != 0)
+ goto fail1;
+
+ /* Initialize our task queue */
+ sc->sc_tq = taskqueue_create("glxsb_taskq", M_NOWAIT | M_ZERO,
+ taskqueue_thread_enqueue, &sc->sc_tq);
+ if (sc->sc_tq == NULL) {
+ device_printf(dev, "cannot create task queue\n");
+ goto fail1;
+ }
+ if (taskqueue_start_threads(&sc->sc_tq, 1, PI_NET, "%s taskq",
+ device_get_nameunit(dev)) != 0) {
+ device_printf(dev, "cannot start task queue\n");
+ goto fail2;
+ }
+ TASK_INIT(&sc->sc_cryptotask, 0, glxsb_crypto_task, sc);
+
+ /* Initialize crypto */
+ if (glxsb_crypto_setup(sc) != 0)
+ goto fail2;
+
+ /* Install a periodic collector for the "true" (AMD's word) RNG */
+ if (hz > 100)
+ sc->sc_rnghz = hz / 100;
+ else
+ sc->sc_rnghz = 1;
+ callout_init(&sc->sc_rngco, CALLOUT_MPSAFE);
+ glxsb_rnd(sc);
+
+ return (0);
+
+fail2:
+ taskqueue_free(sc->sc_tq);
+fail1:
+ bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_rid, sc->sc_sr);
+fail0:
+ return (ENXIO);
+}
+
+static int
+glxsb_detach(device_t dev)
+{
+ struct glxsb_softc *sc = device_get_softc(dev);
+ struct glxsb_session *ses;
+
+ mtx_lock(&sc->sc_sessions_mtx);
+ TAILQ_FOREACH(ses, &sc->sc_sessions, ses_next) {
+ if (ses->ses_used != 0) {
+ mtx_unlock(&sc->sc_sessions_mtx);
+ device_printf(dev,
+ "cannot detach, sessions still active.\n");
+ return (EBUSY);
+ }
+ }
+ for (ses = TAILQ_FIRST(&sc->sc_sessions);
+ ses != NULL;
+ ses = TAILQ_FIRST(&sc->sc_sessions)) {
+
+ TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
+ free(ses, M_GLXSB);
+ }
+ mtx_unlock(&sc->sc_sessions_mtx);
+ crypto_unregister_all(sc->sc_cid);
+ callout_drain(&sc->sc_rngco);
+ taskqueue_drain(sc->sc_tq, &sc->sc_cryptotask);
+ bus_generic_detach(dev);
+ glxsb_dma_free(sc, &sc->sc_dma);
+ bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_rid, sc->sc_sr);
+ taskqueue_free(sc->sc_tq);
+ mtx_destroy(&sc->sc_sessions_mtx);
+ mtx_destroy(&sc->sc_task_mtx);
+ return (0);
+}
+
+/*
+ * callback for bus_dmamap_load()
+ */
+static void
+glxsb_dmamap_cb(void *arg, bus_dma_segment_t *seg, int nseg, int error)
+{
+
+ bus_addr_t *paddr = (bus_addr_t*) arg;
+ *paddr = seg[0].ds_addr;
+}
+
+static int
+glxsb_dma_alloc(struct glxsb_softc *sc)
+{
+ struct glxsb_dma_map *dma = &sc->sc_dma;
+ int rc;
+
+ dma->dma_nsegs = 1;
+ dma->dma_size = GLXSB_MAX_AES_LEN * 2;
+
+ /* Setup DMA descriptor area */
+ rc = bus_dma_tag_create(NULL, /* parent */
+ SB_AES_ALIGN, 0, /* alignments, bounds */
+ BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
+ BUS_SPACE_MAXADDR, /* highaddr */
+ NULL, NULL, /* filter, filterarg */
+ dma->dma_size, /* maxsize */
+ dma->dma_nsegs, /* nsegments */
+ dma->dma_size, /* maxsegsize */
+ BUS_DMA_ALLOCNOW, /* flags */
+ NULL, NULL, /* lockfunc, lockarg */
+ &sc->sc_dmat);
+ if (rc != 0) {
+ device_printf(sc->sc_dev,
+ "cannot allocate DMA tag (%d)\n", rc);
+
+ goto fail0;
+ }
+
+ rc = bus_dmamem_alloc(sc->sc_dmat,
+ (void **)&dma->dma_vaddr, BUS_DMA_NOWAIT, &dma->dma_map);
+ if (rc != 0) {
+ device_printf(sc->sc_dev,
+ "cannot allocate DMA memory of %d bytes (%d)\n",
+ dma->dma_size, rc);
+ goto fail1;
+ }
+
+ rc = bus_dmamap_load(sc->sc_dmat,
+ dma->dma_map, dma->dma_vaddr, dma->dma_size,
+ glxsb_dmamap_cb, &dma->dma_paddr, BUS_DMA_NOWAIT);
+ if (rc != 0) {
+ device_printf(sc->sc_dev,
+ "cannot load DMA memory for %d bytes (%d)\n",
+ dma->dma_size, rc);
+
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ bus_dmamem_free(sc->sc_dmat, dma->dma_vaddr, dma->dma_map);
+fail1:
+ bus_dma_tag_destroy(sc->sc_dmat);
+fail0:
+ return (rc);
+}
+
+static void
+glxsb_dma_pre_op(struct glxsb_softc *sc, struct glxsb_dma_map *dma)
+{
+
+ bus_dmamap_sync(sc->sc_dmat, dma->dma_map,
+ BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+}
+
+static void
+glxsb_dma_post_op(struct glxsb_softc *sc, struct glxsb_dma_map *dma)
+{
+
+ bus_dmamap_sync(sc->sc_dmat, dma->dma_map,
+ BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+}
+
+static void
+glxsb_dma_free(struct glxsb_softc *sc, struct glxsb_dma_map *dma)
+{
+
+ bus_dmamap_unload(sc->sc_dmat, dma->dma_map);
+ bus_dmamem_free(sc->sc_dmat, dma->dma_vaddr, dma->dma_map);
+ bus_dma_tag_destroy(sc->sc_dmat);
+}
+
+static void
+glxsb_rnd(void *v)
+{
+ struct glxsb_softc *sc = v;
+ uint32_t status, value;
+
+ status = bus_read_4(sc->sc_sr, SB_RANDOM_NUM_STATUS);
+ if (status & SB_RNS_TRNG_VALID) {
+ value = bus_read_4(sc->sc_sr, SB_RANDOM_NUM);
+ /* feed with one uint32 */
+ random_harvest(&value, 4, 32, 0, RANDOM_PURE);
+ }
+
+ callout_reset(&sc->sc_rngco, sc->sc_rnghz, glxsb_rnd, sc);
+}
+
+static int
+glxsb_crypto_setup(struct glxsb_softc *sc)
+{
+
+ sc->sc_cid = crypto_get_driverid(sc->sc_dev, CRYPTOCAP_F_HARDWARE);
+
+ if (sc->sc_cid < 0) {
+ device_printf(sc->sc_dev, "cannot get crypto driver id\n");
+ return (ENOMEM);
+ }
+
+ TAILQ_INIT(&sc->sc_sessions);
+ sc->sc_sid = 1;
+ mtx_init(&sc->sc_sessions_mtx, "glxsb_sessions_mtx", NULL, MTX_DEF);
+ mtx_init(&sc->sc_task_mtx, "glxsb_crypto_mtx", NULL, MTX_DEF);
+
+ if (crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_NULL_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_RIPEMD160_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_SHA2_256_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_SHA2_384_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+ if (crypto_register(sc->sc_cid, CRYPTO_SHA2_512_HMAC, 0, 0) != 0)
+ goto crypto_fail;
+
+ return (0);
+
+crypto_fail:
+ device_printf(sc->sc_dev, "cannot register crypto\n");
+ crypto_unregister_all(sc->sc_cid);
+ mtx_destroy(&sc->sc_sessions_mtx);
+ mtx_destroy(&sc->sc_task_mtx);
+ return (ENOMEM);
+}
+
+static int
+glxsb_crypto_newsession(device_t dev, uint32_t *sidp, struct cryptoini *cri)
+{
+ struct glxsb_softc *sc = device_get_softc(dev);
+ struct glxsb_session *ses = NULL;
+ struct cryptoini *encini, *macini;
+ int error;
+
+ if (sc == NULL || sidp == NULL || cri == NULL )
+ return (EINVAL);
+
+ encini = macini = NULL;
+ for (; cri != NULL; cri = cri->cri_next ) {
+ switch(cri->cri_alg) {
+ case CRYPTO_NULL_HMAC:
+ case CRYPTO_MD5_HMAC:
+ case CRYPTO_SHA1_HMAC:
+ case CRYPTO_RIPEMD160_HMAC:
+ case CRYPTO_SHA2_256_HMAC:
+ case CRYPTO_SHA2_384_HMAC:
+ case CRYPTO_SHA2_512_HMAC:
+ if (macini != NULL)
+ return (EINVAL);
+ macini = cri;
+ break;
+ case CRYPTO_AES_CBC:
+ if (encini != NULL)
+ return (EINVAL);
+ encini = cri;
+ break;
+ default:
+ return (EINVAL);
+ }
+ }
+
+ /*
+ * We only support HMAC algorithms to be able to work with
+ * ipsec(4), so if we are asked only for authentication without
+ * encryption, don't pretend we can accellerate it.
+ */
+ if (encini == NULL)
+ return (EINVAL);
+
+ /*
+ * Look for a free session
+ *
+ * Free sessions goes first, so if first session is used, we need to
+ * allocate one.
+ */
+
+ mtx_lock(&sc->sc_sessions_mtx);
+ ses = TAILQ_FIRST(&sc->sc_sessions);
+ if (ses == NULL || ses->ses_used)
+ ses = NULL;
+ else {
+ TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
+ ses->ses_used = 1;
+ TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next);
+ }
+ mtx_unlock(&sc->sc_sessions_mtx);
+ if (ses == NULL) {
+ ses = malloc(sizeof(*ses), M_GLXSB, M_NOWAIT | M_ZERO);
+ if (ses == NULL)
+ return (ENOMEM);
+ ses->ses_used = 1;
+ mtx_lock(&sc->sc_sessions_mtx);
+ ses->ses_id = sc->sc_sid++;
+ TAILQ_INSERT_TAIL(&sc->sc_sessions, ses, ses_next);
+ mtx_unlock(&sc->sc_sessions_mtx);
+ }
+
+ if (encini->cri_alg == CRYPTO_AES_CBC) {
+ if (encini->cri_klen != 128) {
+ glxsb_crypto_freesession(sc->sc_dev, ses->ses_id);
+ return (EINVAL);
+ }
+ arc4rand(ses->ses_iv, sizeof(ses->ses_iv), 0);
+ ses->ses_klen = encini->cri_klen;
+
+ /* Copy the key (Geode LX wants the primary key only) */
+ bcopy(encini->cri_key, ses->ses_key, sizeof(ses->ses_key));
+ }
+
+ if (macini != NULL) {
+ error = glxsb_hash_setup(ses, macini);
+ if (error != 0) {
+ glxsb_crypto_freesession(sc->sc_dev, ses->ses_id);
+ return (error);
+ }
+ }
+
+ *sidp = ses->ses_id;
+ return (0);
+}
+
+static int
+glxsb_crypto_freesession(device_t dev, uint64_t tid)
+{
+ struct glxsb_softc *sc = device_get_softc(dev);
+ struct glxsb_session *ses = NULL;
+ uint32_t sid = ((uint32_t)tid) & 0xffffffff;
+
+ if (sc == NULL)
+ return (EINVAL);
+
+ mtx_lock(&sc->sc_sessions_mtx);
+ TAILQ_FOREACH_REVERSE(ses, &sc->sc_sessions, ses_head, ses_next) {
+ if (ses->ses_id == sid )
+ break;
+ }
+ if (ses == NULL) {
+ mtx_unlock(&sc->sc_sessions_mtx);
+ return (EINVAL);
+ }
+ TAILQ_REMOVE(&sc->sc_sessions, ses, ses_next);
+ glxsb_hash_free(ses);
+ bzero(ses, sizeof(*ses));
+ ses->ses_used = 0;
+ ses->ses_id = sid;
+ TAILQ_INSERT_HEAD(&sc->sc_sessions, ses, ses_next);
+ mtx_unlock(&sc->sc_sessions_mtx);
+
+ return (0);
+}
+
+static int
+glxsb_aes(struct glxsb_softc *sc, uint32_t control, uint32_t psrc,
+ uint32_t pdst, void *key, int len, void *iv)
+{
+ uint32_t status;
+ int i;
+
+ if (len & 0xF) {
+ device_printf(sc->sc_dev,
+ "len must be a multiple of 16 (not %d)\n", len);
+ return (EINVAL);
+ }
+
+ /* Set the source */
+ bus_write_4(sc->sc_sr, SB_SOURCE_A, psrc);
+
+ /* Set the destination address */
+ bus_write_4(sc->sc_sr, SB_DEST_A, pdst);
+
+ /* Set the data length */
+ bus_write_4(sc->sc_sr, SB_LENGTH_A, len);
+
+ /* Set the IV */
+ if (iv != NULL) {
+ bus_write_region_4(sc->sc_sr, SB_CBC_IV, iv, 4);
+ control |= SB_CTL_CBC;
+ }
+
+ /* Set the key */
+ bus_write_region_4(sc->sc_sr, SB_WKEY, key, 4);
+
+ /* Ask the security block to do it */
+ bus_write_4(sc->sc_sr, SB_CTL_A,
+ control | SB_CTL_WK | SB_CTL_DC | SB_CTL_SC | SB_CTL_ST);
+
+ /*
+ * Now wait until it is done.
+ *
+ * We do a busy wait. Obviously the number of iterations of
+ * the loop required to perform the AES operation depends upon
+ * the number of bytes to process.
+ *
+ * On a 500 MHz Geode LX we see
+ *
+ * length (bytes) typical max iterations
+ * 16 12
+ * 64 22
+ * 256 59
+ * 1024 212
+ * 8192 1,537
+ *
+ * Since we have a maximum size of operation defined in
+ * GLXSB_MAX_AES_LEN, we use this constant to decide how long
+ * to wait. Allow an order of magnitude longer than it should
+ * really take, just in case.
+ */
+
+ for (i = 0; i < GLXSB_MAX_AES_LEN * 10; i++) {
+ status = bus_read_4(sc->sc_sr, SB_CTL_A);
+ if ((status & SB_CTL_ST) == 0) /* Done */
+ return(0);
+ }
+
+ device_printf(sc->sc_dev, "operation failed to complete\n");
+ return (EIO);
+}
+
+static int
+glxsb_crypto_encdec(struct cryptop *crp, struct cryptodesc *crd,
+ struct glxsb_session *ses, struct glxsb_softc *sc)
+{
+ char *op_src, *op_dst;
+ uint32_t op_psrc, op_pdst;
+ uint8_t op_iv[SB_AES_BLOCK_SIZE], *piv;
+ int err = 0;
+ int len, tlen, xlen;
+ int offset;
+ uint32_t control;
+
+ if (crd == NULL || (crd->crd_len % SB_AES_BLOCK_SIZE) != 0) {
+ err = EINVAL;
+ goto out;
+ }
+
+ /* How much of our buffer will we need to use? */
+ xlen = crd->crd_len > GLXSB_MAX_AES_LEN ?
+ GLXSB_MAX_AES_LEN : crd->crd_len;
+
+ /*
+ * XXX Check if we can have input == output on Geode LX.
+ * XXX In the meantime, use two separate (adjacent) buffers.
+ */
+ op_src = sc->sc_dma.dma_vaddr;
+ op_dst = (char *)sc->sc_dma.dma_vaddr + xlen;
+
+ op_psrc = sc->sc_dma.dma_paddr;
+ op_pdst = sc->sc_dma.dma_paddr + xlen;
+
+ if (crd->crd_flags & CRD_F_ENCRYPT) {
+ control = SB_CTL_ENC;
+ if (crd->crd_flags & CRD_F_IV_EXPLICIT)
+ bcopy(crd->crd_iv, op_iv, sizeof(op_iv));
+ else
+ bcopy(ses->ses_iv, op_iv, sizeof(op_iv));
+
+ if ((crd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+ crypto_copyback(crp->crp_flags, crp->crp_buf,
+ crd->crd_inject, sizeof(op_iv), op_iv);
+ }
+ } else {
+ control = SB_CTL_DEC;
+ if (crd->crd_flags & CRD_F_IV_EXPLICIT)
+ bcopy(crd->crd_iv, op_iv, sizeof(op_iv));
+ else {
+ crypto_copydata(crp->crp_flags, crp->crp_buf,
+ crd->crd_inject, sizeof(op_iv), op_iv);
+ }
+ }
+
+ offset = 0;
+ tlen = crd->crd_len;
+ piv = op_iv;
+
+ /* Process the data in GLXSB_MAX_AES_LEN chunks */
+ while (tlen > 0) {
+ len = (tlen > GLXSB_MAX_AES_LEN) ? GLXSB_MAX_AES_LEN : tlen;
+ crypto_copydata(crp->crp_flags, crp->crp_buf,
+ crd->crd_skip + offset, len, op_src);
+
+ glxsb_dma_pre_op(sc, &sc->sc_dma);
+
+ err = glxsb_aes(sc, control, op_psrc, op_pdst, ses->ses_key,
+ len, op_iv);
+
+ glxsb_dma_post_op(sc, &sc->sc_dma);
+ if (err != 0)
+ goto out;
+
+ crypto_copyback(crp->crp_flags, crp->crp_buf,
+ crd->crd_skip + offset, len, op_dst);
+
+ offset += len;
+ tlen -= len;
+
+ if (tlen <= 0) { /* Ideally, just == 0 */
+ /* Finished - put the IV in session IV */
+ piv = ses->ses_iv;
+ }
+
+ /*
+ * Copy out last block for use as next iteration/session IV.
+ *
+ * piv is set to op_iv[] before the loop starts, but is
+ * set to ses->ses_iv if we're going to exit the loop this
+ * time.
+ */
+ if (crd->crd_flags & CRD_F_ENCRYPT) {
+ bcopy(op_dst + len - sizeof(op_iv),
+ piv, sizeof(op_iv));
+ } else {
+ /* Decryption, only need this if another iteration */
+ if (tlen > 0) {
+ bcopy(op_src + len - sizeof(op_iv),
+ piv, sizeof(op_iv));
+ }
+ }
+ } /* while */
+
+ /* All AES processing has now been done. */
+ bzero(sc->sc_dma.dma_vaddr, xlen * 2);
+
+out:
+ return (err);
+}
+
+static void
+glxsb_crypto_task(void *arg, int pending)
+{
+ struct glxsb_softc *sc = arg;
+ struct glxsb_session *ses;
+ struct cryptop *crp;
+ struct cryptodesc *enccrd, *maccrd;
+ int error = 0;
+
+ maccrd = sc->sc_to.to_maccrd;
+ enccrd = sc->sc_to.to_enccrd;
+ crp = sc->sc_to.to_crp;
+ ses = sc->sc_to.to_ses;
+
+ /* Perform data authentication if requested before encryption */
+ if (maccrd != NULL && maccrd->crd_next == enccrd) {
+ error = glxsb_hash_process(ses, maccrd, crp);
+ if (error != 0)
+ goto out;
+ }
+
+ error = glxsb_crypto_encdec(crp, enccrd, ses, sc);
+ if (error != 0)
+ goto out;
+
+ /* Perform data authentication if requested after encryption */
+ if (maccrd != NULL && enccrd->crd_next == maccrd) {
+ error = glxsb_hash_process(ses, maccrd, crp);
+ if (error != 0)
+ goto out;
+ }
+out:
+ mtx_lock(&sc->sc_task_mtx);
+ sc->sc_task_count--;
+ mtx_unlock(&sc->sc_task_mtx);
+
+ crp->crp_etype = error;
+ crypto_unblock(sc->sc_cid, CRYPTO_SYMQ);
+ crypto_done(crp);
+}
+
+static int
+glxsb_crypto_process(device_t dev, struct cryptop *crp, int hint)
+{
+ struct glxsb_softc *sc = device_get_softc(dev);
+ struct glxsb_session *ses;
+ struct cryptodesc *crd, *enccrd, *maccrd;
+ uint32_t sid;
+ int error = 0;
+
+ enccrd = maccrd = NULL;
+
+ if (crp == NULL ||
+ crp->crp_callback == NULL || crp->crp_desc == NULL) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ for (crd = crp->crp_desc; crd != NULL; crd = crd->crd_next) {
+ switch (crd->crd_alg) {
+ case CRYPTO_NULL_HMAC:
+ case CRYPTO_MD5_HMAC:
+ case CRYPTO_SHA1_HMAC:
+ case CRYPTO_RIPEMD160_HMAC:
+ case CRYPTO_SHA2_256_HMAC:
+ case CRYPTO_SHA2_384_HMAC:
+ case CRYPTO_SHA2_512_HMAC:
+ if (maccrd != NULL) {
+ error = EINVAL;
+ goto fail;
+ }
+ maccrd = crd;
+ break;
+ case CRYPTO_AES_CBC:
+ if (enccrd != NULL) {
+ error = EINVAL;
+ goto fail;
+ }
+ enccrd = crd;
+ break;
+ default:
+ error = EINVAL;
+ goto fail;
+ }
+ }
+
+ if (enccrd == NULL || enccrd->crd_len % AES_BLOCK_LEN != 0) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ sid = crp->crp_sid & 0xffffffff;
+ mtx_lock(&sc->sc_sessions_mtx);
+ TAILQ_FOREACH_REVERSE(ses, &sc->sc_sessions, ses_head, ses_next) {
+ if (ses->ses_id == sid)
+ break;
+ }
+
+ mtx_unlock(&sc->sc_sessions_mtx);
+ if ( ses == NULL || ses->ses_used == 0 ) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ mtx_lock(&sc->sc_task_mtx);
+ if (sc->sc_task_count != 0) {
+ mtx_unlock(&sc->sc_task_mtx);
+ return (ERESTART);
+ }
+ sc->sc_task_count++;
+
+ sc->sc_to.to_maccrd = maccrd;
+ sc->sc_to.to_enccrd = enccrd;
+ sc->sc_to.to_crp = crp;
+ sc->sc_to.to_ses = ses;
+ mtx_unlock(&sc->sc_task_mtx);
+
+ taskqueue_enqueue(sc->sc_tq, &sc->sc_cryptotask);
+ return(0);
+
+fail:
+ crp->crp_etype = error;
+ crypto_done(crp);
+ return (error);
+}
diff --git a/sys/dev/glxsb/glxsb.h b/sys/dev/glxsb/glxsb.h
new file mode 100644
index 0000000..06219d3
--- /dev/null
+++ b/sys/dev/glxsb/glxsb.h
@@ -0,0 +1,57 @@
+/*-
+ * Copyright (c) 2005-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _GLXSB_H_
+#define _GLXSB_H_
+
+#include <opencrypto/cryptodev.h>
+
+#define SB_AES_BLOCK_SIZE 0x0010
+
+struct glxsb_session {
+ uint32_t ses_key[4]; /* key */
+ uint8_t ses_iv[SB_AES_BLOCK_SIZE]; /* initialization vector */
+ int ses_klen; /* key len */
+ int ses_used; /* session is used */
+ uint32_t ses_id; /* session id*/
+ struct auth_hash *ses_axf;
+ uint8_t *ses_ictx;
+ uint8_t *ses_octx;
+ int ses_mlen;
+ TAILQ_ENTRY(glxsb_session) ses_next;
+};
+
+int glxsb_hash_setup(struct glxsb_session *ses,
+ struct cryptoini *macini);
+
+int glxsb_hash_process(struct glxsb_session *ses,
+ struct cryptodesc *maccrd, struct cryptop *crp);
+
+void glxsb_hash_free(struct glxsb_session *ses);
+
+#endif /* !_GLXSB_H_ */
diff --git a/sys/dev/glxsb/glxsb_hash.c b/sys/dev/glxsb/glxsb_hash.c
new file mode 100644
index 0000000..1710f27
--- /dev/null
+++ b/sys/dev/glxsb/glxsb_hash.c
@@ -0,0 +1,183 @@
+/*-
+ * Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+
+#include <opencrypto/cryptosoft.h> /* for hmac_ipad_buffer and hmac_opad_buffer */
+#include <opencrypto/xform.h>
+
+#include "glxsb.h"
+
+/*
+ * Implementation notes.
+ *
+ * The Geode LX Security Block provides AES-128-CBC acceleration.
+ * We implement all HMAC algorithms provided by crypto(9) framework so glxsb can work
+ * with ipsec(4)
+ *
+ * This code was stolen from crypto/via/padlock_hash.c
+ */
+
+MALLOC_DECLARE(M_GLXSB);
+
+static void
+glxsb_hash_key_setup(struct glxsb_session *ses, caddr_t key, int klen)
+{
+ struct auth_hash *axf;
+ int i;
+
+ klen /= 8;
+ axf = ses->ses_axf;
+
+ for (i = 0; i < klen; i++)
+ key[i] ^= HMAC_IPAD_VAL;
+
+ axf->Init(ses->ses_ictx);
+ axf->Update(ses->ses_ictx, key, klen);
+ axf->Update(ses->ses_ictx, hmac_ipad_buffer, axf->blocksize - klen);
+
+ for (i = 0; i < klen; i++)
+ key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
+
+ axf->Init(ses->ses_octx);
+ axf->Update(ses->ses_octx, key, klen);
+ axf->Update(ses->ses_octx, hmac_opad_buffer, axf->blocksize - klen);
+
+ for (i = 0; i < klen; i++)
+ key[i] ^= HMAC_OPAD_VAL;
+}
+
+/*
+ * Compute keyed-hash authenticator.
+ */
+static int
+glxsb_authcompute(struct glxsb_session *ses, struct cryptodesc *crd,
+ caddr_t buf, int flags)
+{
+ u_char hash[HASH_MAX_LEN];
+ struct auth_hash *axf;
+ union authctx ctx;
+ int error;
+
+ axf = ses->ses_axf;
+ bcopy(ses->ses_ictx, &ctx, axf->ctxsize);
+ error = crypto_apply(flags, buf, crd->crd_skip, crd->crd_len,
+ (int (*)(void *, void *, unsigned int))axf->Update, (caddr_t)&ctx);
+ if (error != 0) {
+ return (error);
+ }
+ axf->Final(hash, &ctx);
+
+ bcopy(ses->ses_octx, &ctx, axf->ctxsize);
+ axf->Update(&ctx, hash, axf->hashsize);
+ axf->Final(hash, &ctx);
+
+ /* Inject the authentication data */
+ crypto_copyback(flags, buf, crd->crd_inject,
+ ses->ses_mlen == 0 ? axf->hashsize : ses->ses_mlen, hash);
+ return (0);
+}
+
+int
+glxsb_hash_setup(struct glxsb_session *ses, struct cryptoini *macini)
+{
+
+ ses->ses_mlen = macini->cri_mlen;
+
+ /* Find software structure which describes HMAC algorithm. */
+ switch (macini->cri_alg) {
+ case CRYPTO_NULL_HMAC:
+ ses->ses_axf = &auth_hash_null;
+ break;
+ case CRYPTO_MD5_HMAC:
+ ses->ses_axf = &auth_hash_hmac_md5;
+ break;
+ case CRYPTO_SHA1_HMAC:
+ ses->ses_axf = &auth_hash_hmac_sha1;
+ break;
+ case CRYPTO_RIPEMD160_HMAC:
+ ses->ses_axf = &auth_hash_hmac_ripemd_160;
+ break;
+ case CRYPTO_SHA2_256_HMAC:
+ ses->ses_axf = &auth_hash_hmac_sha2_256;
+ break;
+ case CRYPTO_SHA2_384_HMAC:
+ ses->ses_axf = &auth_hash_hmac_sha2_384;
+ break;
+ case CRYPTO_SHA2_512_HMAC:
+ ses->ses_axf = &auth_hash_hmac_sha2_512;
+ break;
+ }
+
+ /* Allocate memory for HMAC inner and outer contexts. */
+ ses->ses_ictx = malloc(ses->ses_axf->ctxsize, M_GLXSB,
+ M_ZERO | M_NOWAIT);
+ ses->ses_octx = malloc(ses->ses_axf->ctxsize, M_GLXSB,
+ M_ZERO | M_NOWAIT);
+ if (ses->ses_ictx == NULL || ses->ses_octx == NULL)
+ return (ENOMEM);
+
+ /* Setup key if given. */
+ if (macini->cri_key != NULL) {
+ glxsb_hash_key_setup(ses, macini->cri_key,
+ macini->cri_klen);
+ }
+ return (0);
+}
+
+int
+glxsb_hash_process(struct glxsb_session *ses, struct cryptodesc *maccrd,
+ struct cryptop *crp)
+{
+ int error;
+
+ if ((maccrd->crd_flags & CRD_F_KEY_EXPLICIT) != 0)
+ glxsb_hash_key_setup(ses, maccrd->crd_key, maccrd->crd_klen);
+
+ error = glxsb_authcompute(ses, maccrd, crp->crp_buf, crp->crp_flags);
+ return (error);
+}
+
+void
+glxsb_hash_free(struct glxsb_session *ses)
+{
+
+ if (ses->ses_ictx != NULL) {
+ bzero(ses->ses_ictx, ses->ses_axf->ctxsize);
+ free(ses->ses_ictx, M_GLXSB);
+ ses->ses_ictx = NULL;
+ }
+ if (ses->ses_octx != NULL) {
+ bzero(ses->ses_octx, ses->ses_axf->ctxsize);
+ free(ses->ses_octx, M_GLXSB);
+ ses->ses_octx = NULL;
+ }
+}
diff --git a/sys/i386/conf/NOTES b/sys/i386/conf/NOTES
index ddff062..1775336 100644
--- a/sys/i386/conf/NOTES
+++ b/sys/i386/conf/NOTES
@@ -687,6 +687,12 @@ device safe # SafeNet 1141
options SAFE_DEBUG # enable debugging support: hw.safe.debug
options SAFE_RNDTEST # enable rndtest support
+#
+# glxsb is a driver for the Security Block in AMD Geode LX processors.
+# Requires 'device crypto'.
+#
+device glxsb # AMD Geode LX Security Block
+
#####################################################################
#
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index ae11611..a3f6b99 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -94,6 +94,7 @@ SUBDIR= ${_3dfx} \
fxp \
gem \
geom \
+ ${_glxsb} \
hatm \
hifn \
hme \
@@ -387,6 +388,7 @@ _et= et
_exca= exca
_ext2fs= ext2fs
_fe= fe
+_glxsb= glxsb
_i2c= i2c
_ibcs2= ibcs2
_ie= ie
diff --git a/sys/modules/glxsb/Makefile b/sys/modules/glxsb/Makefile
new file mode 100644
index 0000000..7167f82
--- /dev/null
+++ b/sys/modules/glxsb/Makefile
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../dev/glxsb
+KMOD = glxsb
+SRCS = glxsb.c glxsb_hash.c glxsb.h
+SRCS += device_if.h pci_if.h bus_if.h
+SRCS += opt_bus.h cryptodev_if.h
+
+.include <bsd.kmod.mk>
OpenPOWER on IntegriCloud