#include <crypto/internal/rsa.h>
#include <crypto/internal/akcipher.h>
#include <crypto/akcipher.h>
+#include <crypto/kpp.h>
+#include <crypto/internal/kpp.h>
+#include <crypto/dh.h>
#include <linux/dma-mapping.h>
#include <linux/fips.h>
#include <crypto/scatterwalk.h>
-#include "qat_rsapubkey-asn1.h"
-#include "qat_rsaprivkey-asn1.h"
#include "icp_qat_fw_pke.h"
#include "adf_accel_devices.h"
#include "adf_transport.h"
dma_addr_t d;
dma_addr_t n;
} dec;
+ struct {
+ dma_addr_t c;
+ dma_addr_t p;
+ dma_addr_t q;
+ dma_addr_t dp;
+ dma_addr_t dq;
+ dma_addr_t qinv;
+ } dec_crt;
u64 in_tab[8];
};
} __packed __aligned(64);
char *n;
char *e;
char *d;
+ char *p;
+ char *q;
+ char *dp;
+ char *dq;
+ char *qinv;
dma_addr_t dma_n;
dma_addr_t dma_e;
dma_addr_t dma_d;
+ dma_addr_t dma_p;
+ dma_addr_t dma_q;
+ dma_addr_t dma_dp;
+ dma_addr_t dma_dq;
+ dma_addr_t dma_qinv;
unsigned int key_sz;
+ bool crt_mode;
+ struct qat_crypto_instance *inst;
+} __packed __aligned(64);
+
+struct qat_dh_input_params {
+ union {
+ struct {
+ dma_addr_t b;
+ dma_addr_t xa;
+ dma_addr_t p;
+ } in;
+ struct {
+ dma_addr_t xa;
+ dma_addr_t p;
+ } in_g2;
+ u64 in_tab[8];
+ };
+} __packed __aligned(64);
+
+struct qat_dh_output_params {
+ union {
+ dma_addr_t r;
+ u64 out_tab[8];
+ };
+} __packed __aligned(64);
+
+struct qat_dh_ctx {
+ char *g;
+ char *xa;
+ char *p;
+ dma_addr_t dma_g;
+ dma_addr_t dma_xa;
+ dma_addr_t dma_p;
+ unsigned int p_size;
+ bool g2;
struct qat_crypto_instance *inst;
} __packed __aligned(64);
-struct qat_rsa_request {
- struct qat_rsa_input_params in;
- struct qat_rsa_output_params out;
+struct qat_asym_request {
+ union {
+ struct qat_rsa_input_params rsa;
+ struct qat_dh_input_params dh;
+ } in;
+ union {
+ struct qat_rsa_output_params rsa;
+ struct qat_dh_output_params dh;
+ } out;
dma_addr_t phy_in;
dma_addr_t phy_out;
char *src_align;
char *dst_align;
struct icp_qat_fw_pke_request req;
- struct qat_rsa_ctx *ctx;
+ union {
+ struct qat_rsa_ctx *rsa;
+ struct qat_dh_ctx *dh;
+ } ctx;
+ union {
+ struct akcipher_request *rsa;
+ struct kpp_request *dh;
+ } areq;
int err;
+ void (*cb)(struct icp_qat_fw_pke_resp *resp);
} __aligned(64);
-static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp)
+static void qat_dh_cb(struct icp_qat_fw_pke_resp *resp)
{
- struct akcipher_request *areq = (void *)(__force long)resp->opaque;
- struct qat_rsa_request *req = PTR_ALIGN(akcipher_request_ctx(areq), 64);
- struct device *dev = &GET_DEV(req->ctx->inst->accel_dev);
+ struct qat_asym_request *req = (void *)(__force long)resp->opaque;
+ struct kpp_request *areq = req->areq.dh;
+ struct device *dev = &GET_DEV(req->ctx.dh->inst->accel_dev);
int err = ICP_QAT_FW_PKE_RESP_PKE_STAT_GET(
resp->pke_resp_hdr.comn_resp_flags);
err = (err == ICP_QAT_FW_COMN_STATUS_FLAG_OK) ? 0 : -EINVAL;
- if (req->src_align)
- dma_free_coherent(dev, req->ctx->key_sz, req->src_align,
- req->in.enc.m);
- else
- dma_unmap_single(dev, req->in.enc.m, req->ctx->key_sz,
- DMA_TO_DEVICE);
+ if (areq->src) {
+ if (req->src_align)
+ dma_free_coherent(dev, req->ctx.dh->p_size,
+ req->src_align, req->in.dh.in.b);
+ else
+ dma_unmap_single(dev, req->in.dh.in.b,
+ req->ctx.dh->p_size, DMA_TO_DEVICE);
+ }
- areq->dst_len = req->ctx->key_sz;
+ areq->dst_len = req->ctx.dh->p_size;
if (req->dst_align) {
- char *ptr = req->dst_align;
+ scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,
+ areq->dst_len, 1);
- while (!(*ptr) && areq->dst_len) {
- areq->dst_len--;
- ptr++;
- }
+ dma_free_coherent(dev, req->ctx.dh->p_size, req->dst_align,
+ req->out.dh.r);
+ } else {
+ dma_unmap_single(dev, req->out.dh.r, req->ctx.dh->p_size,
+ DMA_FROM_DEVICE);
+ }
- if (areq->dst_len != req->ctx->key_sz)
- memmove(req->dst_align, ptr, areq->dst_len);
+ dma_unmap_single(dev, req->phy_in, sizeof(struct qat_dh_input_params),
+ DMA_TO_DEVICE);
+ dma_unmap_single(dev, req->phy_out,
+ sizeof(struct qat_dh_output_params),
+ DMA_TO_DEVICE);
- scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,
- areq->dst_len, 1);
+ kpp_request_complete(areq, err);
+}
+
+#define PKE_DH_1536 0x390c1a49
+#define PKE_DH_G2_1536 0x2e0b1a3e
+#define PKE_DH_2048 0x4d0c1a60
+#define PKE_DH_G2_2048 0x3e0b1a55
+#define PKE_DH_3072 0x510c1a77
+#define PKE_DH_G2_3072 0x3a0b1a6c
+#define PKE_DH_4096 0x690c1a8e
+#define PKE_DH_G2_4096 0x4a0b1a83
+
+static unsigned long qat_dh_fn_id(unsigned int len, bool g2)
+{
+ unsigned int bitslen = len << 3;
+
+ switch (bitslen) {
+ case 1536:
+ return g2 ? PKE_DH_G2_1536 : PKE_DH_1536;
+ case 2048:
+ return g2 ? PKE_DH_G2_2048 : PKE_DH_2048;
+ case 3072:
+ return g2 ? PKE_DH_G2_3072 : PKE_DH_3072;
+ case 4096:
+ return g2 ? PKE_DH_G2_4096 : PKE_DH_4096;
+ default:
+ return 0;
+ };
+}
+
+static inline struct qat_dh_ctx *qat_dh_get_params(struct crypto_kpp *tfm)
+{
+ return kpp_tfm_ctx(tfm);
+}
+
+static int qat_dh_compute_value(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
+ struct qat_crypto_instance *inst = ctx->inst;
+ struct device *dev = &GET_DEV(inst->accel_dev);
+ struct qat_asym_request *qat_req =
+ PTR_ALIGN(kpp_request_ctx(req), 64);
+ struct icp_qat_fw_pke_request *msg = &qat_req->req;
+ int ret, ctr = 0;
+ int n_input_params = 0;
+
+ if (unlikely(!ctx->xa))
+ return -EINVAL;
+
+ if (req->dst_len < ctx->p_size) {
+ req->dst_len = ctx->p_size;
+ return -EOVERFLOW;
+ }
+ memset(msg, '\0', sizeof(*msg));
+ ICP_QAT_FW_PKE_HDR_VALID_FLAG_SET(msg->pke_hdr,
+ ICP_QAT_FW_COMN_REQ_FLAG_SET);
+
+ msg->pke_hdr.cd_pars.func_id = qat_dh_fn_id(ctx->p_size,
+ !req->src && ctx->g2);
+ if (unlikely(!msg->pke_hdr.cd_pars.func_id))
+ return -EINVAL;
+
+ qat_req->cb = qat_dh_cb;
+ qat_req->ctx.dh = ctx;
+ qat_req->areq.dh = req;
+ msg->pke_hdr.service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_PKE;
+ msg->pke_hdr.comn_req_flags =
+ ICP_QAT_FW_COMN_FLAGS_BUILD(QAT_COMN_PTR_TYPE_FLAT,
+ QAT_COMN_CD_FLD_TYPE_64BIT_ADR);
- dma_free_coherent(dev, req->ctx->key_sz, req->dst_align,
- req->out.enc.c);
+ /*
+ * If no source is provided use g as base
+ */
+ if (req->src) {
+ qat_req->in.dh.in.xa = ctx->dma_xa;
+ qat_req->in.dh.in.p = ctx->dma_p;
+ n_input_params = 3;
} else {
- char *ptr = sg_virt(areq->dst);
+ if (ctx->g2) {
+ qat_req->in.dh.in_g2.xa = ctx->dma_xa;
+ qat_req->in.dh.in_g2.p = ctx->dma_p;
+ n_input_params = 2;
+ } else {
+ qat_req->in.dh.in.b = ctx->dma_g;
+ qat_req->in.dh.in.xa = ctx->dma_xa;
+ qat_req->in.dh.in.p = ctx->dma_p;
+ n_input_params = 3;
+ }
+ }
- while (!(*ptr) && areq->dst_len) {
- areq->dst_len--;
- ptr++;
+ ret = -ENOMEM;
+ if (req->src) {
+ /*
+ * src can be of any size in valid range, but HW expects it to
+ * be the same as modulo p so in case it is different we need
+ * to allocate a new buf and copy src data.
+ * In other case we just need to map the user provided buffer.
+ * Also need to make sure that it is in contiguous buffer.
+ */
+ if (sg_is_last(req->src) && req->src_len == ctx->p_size) {
+ qat_req->src_align = NULL;
+ qat_req->in.dh.in.b = dma_map_single(dev,
+ sg_virt(req->src),
+ req->src_len,
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev,
+ qat_req->in.dh.in.b)))
+ return ret;
+
+ } else {
+ int shift = ctx->p_size - req->src_len;
+
+ qat_req->src_align = dma_zalloc_coherent(dev,
+ ctx->p_size,
+ &qat_req->in.dh.in.b,
+ GFP_KERNEL);
+ if (unlikely(!qat_req->src_align))
+ return ret;
+
+ scatterwalk_map_and_copy(qat_req->src_align + shift,
+ req->src, 0, req->src_len, 0);
}
+ }
+ /*
+ * dst can be of any size in valid range, but HW expects it to be the
+ * same as modulo m so in case it is different we need to allocate a
+ * new buf and copy src data.
+ * In other case we just need to map the user provided buffer.
+ * Also need to make sure that it is in contiguous buffer.
+ */
+ if (sg_is_last(req->dst) && req->dst_len == ctx->p_size) {
+ qat_req->dst_align = NULL;
+ qat_req->out.dh.r = dma_map_single(dev, sg_virt(req->dst),
+ req->dst_len,
+ DMA_FROM_DEVICE);
- if (sg_virt(areq->dst) != ptr && areq->dst_len)
- memmove(sg_virt(areq->dst), ptr, areq->dst_len);
+ if (unlikely(dma_mapping_error(dev, qat_req->out.dh.r)))
+ goto unmap_src;
+
+ } else {
+ qat_req->dst_align = dma_zalloc_coherent(dev, ctx->p_size,
+ &qat_req->out.dh.r,
+ GFP_KERNEL);
+ if (unlikely(!qat_req->dst_align))
+ goto unmap_src;
+ }
- dma_unmap_single(dev, req->out.enc.c, req->ctx->key_sz,
+ qat_req->in.dh.in_tab[n_input_params] = 0;
+ qat_req->out.dh.out_tab[1] = 0;
+ /* Mapping in.in.b or in.in_g2.xa is the same */
+ qat_req->phy_in = dma_map_single(dev, &qat_req->in.dh.in.b,
+ sizeof(struct qat_dh_input_params),
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev, qat_req->phy_in)))
+ goto unmap_dst;
+
+ qat_req->phy_out = dma_map_single(dev, &qat_req->out.dh.r,
+ sizeof(struct qat_dh_output_params),
+ DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(dev, qat_req->phy_out)))
+ goto unmap_in_params;
+
+ msg->pke_mid.src_data_addr = qat_req->phy_in;
+ msg->pke_mid.dest_data_addr = qat_req->phy_out;
+ msg->pke_mid.opaque = (uint64_t)(__force long)qat_req;
+ msg->input_param_count = n_input_params;
+ msg->output_param_count = 1;
+
+ do {
+ ret = adf_send_message(ctx->inst->pke_tx, (uint32_t *)msg);
+ } while (ret == -EBUSY && ctr++ < 100);
+
+ if (!ret)
+ return -EINPROGRESS;
+
+ if (!dma_mapping_error(dev, qat_req->phy_out))
+ dma_unmap_single(dev, qat_req->phy_out,
+ sizeof(struct qat_dh_output_params),
+ DMA_TO_DEVICE);
+unmap_in_params:
+ if (!dma_mapping_error(dev, qat_req->phy_in))
+ dma_unmap_single(dev, qat_req->phy_in,
+ sizeof(struct qat_dh_input_params),
+ DMA_TO_DEVICE);
+unmap_dst:
+ if (qat_req->dst_align)
+ dma_free_coherent(dev, ctx->p_size, qat_req->dst_align,
+ qat_req->out.dh.r);
+ else
+ if (!dma_mapping_error(dev, qat_req->out.dh.r))
+ dma_unmap_single(dev, qat_req->out.dh.r, ctx->p_size,
+ DMA_FROM_DEVICE);
+unmap_src:
+ if (req->src) {
+ if (qat_req->src_align)
+ dma_free_coherent(dev, ctx->p_size, qat_req->src_align,
+ qat_req->in.dh.in.b);
+ else
+ if (!dma_mapping_error(dev, qat_req->in.dh.in.b))
+ dma_unmap_single(dev, qat_req->in.dh.in.b,
+ ctx->p_size,
+ DMA_TO_DEVICE);
+ }
+ return ret;
+}
+
+static int qat_dh_check_params_length(unsigned int p_len)
+{
+ switch (p_len) {
+ case 1536:
+ case 2048:
+ case 3072:
+ case 4096:
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int qat_dh_set_params(struct qat_dh_ctx *ctx, struct dh *params)
+{
+ struct qat_crypto_instance *inst = ctx->inst;
+ struct device *dev = &GET_DEV(inst->accel_dev);
+
+ if (unlikely(!params->p || !params->g))
+ return -EINVAL;
+
+ if (qat_dh_check_params_length(params->p_size << 3))
+ return -EINVAL;
+
+ ctx->p_size = params->p_size;
+ ctx->p = dma_zalloc_coherent(dev, ctx->p_size, &ctx->dma_p, GFP_KERNEL);
+ if (!ctx->p)
+ return -ENOMEM;
+ memcpy(ctx->p, params->p, ctx->p_size);
+
+ /* If g equals 2 don't copy it */
+ if (params->g_size == 1 && *(char *)params->g == 0x02) {
+ ctx->g2 = true;
+ return 0;
+ }
+
+ ctx->g = dma_zalloc_coherent(dev, ctx->p_size, &ctx->dma_g, GFP_KERNEL);
+ if (!ctx->g) {
+ dma_free_coherent(dev, ctx->p_size, ctx->p, ctx->dma_p);
+ ctx->p = NULL;
+ return -ENOMEM;
+ }
+ memcpy(ctx->g + (ctx->p_size - params->g_size), params->g,
+ params->g_size);
+
+ return 0;
+}
+
+static void qat_dh_clear_ctx(struct device *dev, struct qat_dh_ctx *ctx)
+{
+ if (ctx->g) {
+ dma_free_coherent(dev, ctx->p_size, ctx->g, ctx->dma_g);
+ ctx->g = NULL;
+ }
+ if (ctx->xa) {
+ dma_free_coherent(dev, ctx->p_size, ctx->xa, ctx->dma_xa);
+ ctx->xa = NULL;
+ }
+ if (ctx->p) {
+ dma_free_coherent(dev, ctx->p_size, ctx->p, ctx->dma_p);
+ ctx->p = NULL;
+ }
+ ctx->p_size = 0;
+ ctx->g2 = false;
+}
+
+static int qat_dh_set_secret(struct crypto_kpp *tfm, void *buf,
+ unsigned int len)
+{
+ struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
+ struct device *dev = &GET_DEV(ctx->inst->accel_dev);
+ struct dh params;
+ int ret;
+
+ if (crypto_dh_decode_key(buf, len, ¶ms) < 0)
+ return -EINVAL;
+
+ /* Free old secret if any */
+ qat_dh_clear_ctx(dev, ctx);
+
+ ret = qat_dh_set_params(ctx, ¶ms);
+ if (ret < 0)
+ return ret;
+
+ ctx->xa = dma_zalloc_coherent(dev, ctx->p_size, &ctx->dma_xa,
+ GFP_KERNEL);
+ if (!ctx->xa) {
+ qat_dh_clear_ctx(dev, ctx);
+ return -ENOMEM;
+ }
+ memcpy(ctx->xa + (ctx->p_size - params.key_size), params.key,
+ params.key_size);
+
+ return 0;
+}
+
+static int qat_dh_max_size(struct crypto_kpp *tfm)
+{
+ struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
+
+ return ctx->p ? ctx->p_size : -EINVAL;
+}
+
+static int qat_dh_init_tfm(struct crypto_kpp *tfm)
+{
+ struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
+ struct qat_crypto_instance *inst =
+ qat_crypto_get_instance_node(get_current_node());
+
+ if (!inst)
+ return -EINVAL;
+
+ ctx->p_size = 0;
+ ctx->g2 = false;
+ ctx->inst = inst;
+ return 0;
+}
+
+static void qat_dh_exit_tfm(struct crypto_kpp *tfm)
+{
+ struct qat_dh_ctx *ctx = kpp_tfm_ctx(tfm);
+ struct device *dev = &GET_DEV(ctx->inst->accel_dev);
+
+ qat_dh_clear_ctx(dev, ctx);
+ qat_crypto_put_instance(ctx->inst);
+}
+
+static void qat_rsa_cb(struct icp_qat_fw_pke_resp *resp)
+{
+ struct qat_asym_request *req = (void *)(__force long)resp->opaque;
+ struct akcipher_request *areq = req->areq.rsa;
+ struct device *dev = &GET_DEV(req->ctx.rsa->inst->accel_dev);
+ int err = ICP_QAT_FW_PKE_RESP_PKE_STAT_GET(
+ resp->pke_resp_hdr.comn_resp_flags);
+
+ err = (err == ICP_QAT_FW_COMN_STATUS_FLAG_OK) ? 0 : -EINVAL;
+
+ if (req->src_align)
+ dma_free_coherent(dev, req->ctx.rsa->key_sz, req->src_align,
+ req->in.rsa.enc.m);
+ else
+ dma_unmap_single(dev, req->in.rsa.enc.m, req->ctx.rsa->key_sz,
+ DMA_TO_DEVICE);
+
+ areq->dst_len = req->ctx.rsa->key_sz;
+ if (req->dst_align) {
+ scatterwalk_map_and_copy(req->dst_align, areq->dst, 0,
+ areq->dst_len, 1);
+
+ dma_free_coherent(dev, req->ctx.rsa->key_sz, req->dst_align,
+ req->out.rsa.enc.c);
+ } else {
+ dma_unmap_single(dev, req->out.rsa.enc.c, req->ctx.rsa->key_sz,
DMA_FROM_DEVICE);
}
void qat_alg_asym_callback(void *_resp)
{
struct icp_qat_fw_pke_resp *resp = _resp;
+ struct qat_asym_request *areq = (void *)(__force long)resp->opaque;
- qat_rsa_cb(resp);
+ areq->cb(resp);
}
#define PKE_RSA_EP_512 0x1c161b21
};
}
+#define PKE_RSA_DP2_512 0x1c131b57
+#define PKE_RSA_DP2_1024 0x26131c2d
+#define PKE_RSA_DP2_1536 0x45111d12
+#define PKE_RSA_DP2_2048 0x59121dfa
+#define PKE_RSA_DP2_3072 0x81121ed9
+#define PKE_RSA_DP2_4096 0xb1111fb2
+
+static unsigned long qat_rsa_dec_fn_id_crt(unsigned int len)
+{
+ unsigned int bitslen = len << 3;
+
+ switch (bitslen) {
+ case 512:
+ return PKE_RSA_DP2_512;
+ case 1024:
+ return PKE_RSA_DP2_1024;
+ case 1536:
+ return PKE_RSA_DP2_1536;
+ case 2048:
+ return PKE_RSA_DP2_2048;
+ case 3072:
+ return PKE_RSA_DP2_3072;
+ case 4096:
+ return PKE_RSA_DP2_4096;
+ default:
+ return 0;
+ };
+}
+
static int qat_rsa_enc(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev = &GET_DEV(inst->accel_dev);
- struct qat_rsa_request *qat_req =
+ struct qat_asym_request *qat_req =
PTR_ALIGN(akcipher_request_ctx(req), 64);
struct icp_qat_fw_pke_request *msg = &qat_req->req;
int ret, ctr = 0;
if (unlikely(!msg->pke_hdr.cd_pars.func_id))
return -EINVAL;
- qat_req->ctx = ctx;
+ qat_req->cb = qat_rsa_cb;
+ qat_req->ctx.rsa = ctx;
+ qat_req->areq.rsa = req;
msg->pke_hdr.service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_PKE;
msg->pke_hdr.comn_req_flags =
ICP_QAT_FW_COMN_FLAGS_BUILD(QAT_COMN_PTR_TYPE_FLAT,
QAT_COMN_CD_FLD_TYPE_64BIT_ADR);
- qat_req->in.enc.e = ctx->dma_e;
- qat_req->in.enc.n = ctx->dma_n;
+ qat_req->in.rsa.enc.e = ctx->dma_e;
+ qat_req->in.rsa.enc.n = ctx->dma_n;
ret = -ENOMEM;
/*
*/
if (sg_is_last(req->src) && req->src_len == ctx->key_sz) {
qat_req->src_align = NULL;
- qat_req->in.enc.m = dma_map_single(dev, sg_virt(req->src),
+ qat_req->in.rsa.enc.m = dma_map_single(dev, sg_virt(req->src),
req->src_len, DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(dev, qat_req->in.enc.m)))
+ if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.enc.m)))
return ret;
} else {
int shift = ctx->key_sz - req->src_len;
qat_req->src_align = dma_zalloc_coherent(dev, ctx->key_sz,
- &qat_req->in.enc.m,
+ &qat_req->in.rsa.enc.m,
GFP_KERNEL);
if (unlikely(!qat_req->src_align))
return ret;
}
if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) {
qat_req->dst_align = NULL;
- qat_req->out.enc.c = dma_map_single(dev, sg_virt(req->dst),
- req->dst_len,
- DMA_FROM_DEVICE);
+ qat_req->out.rsa.enc.c = dma_map_single(dev, sg_virt(req->dst),
+ req->dst_len,
+ DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(dev, qat_req->out.enc.c)))
+ if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.enc.c)))
goto unmap_src;
} else {
qat_req->dst_align = dma_zalloc_coherent(dev, ctx->key_sz,
- &qat_req->out.enc.c,
+ &qat_req->out.rsa.enc.c,
GFP_KERNEL);
if (unlikely(!qat_req->dst_align))
goto unmap_src;
}
- qat_req->in.in_tab[3] = 0;
- qat_req->out.out_tab[1] = 0;
- qat_req->phy_in = dma_map_single(dev, &qat_req->in.enc.m,
+ qat_req->in.rsa.in_tab[3] = 0;
+ qat_req->out.rsa.out_tab[1] = 0;
+ qat_req->phy_in = dma_map_single(dev, &qat_req->in.rsa.enc.m,
sizeof(struct qat_rsa_input_params),
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, qat_req->phy_in)))
goto unmap_dst;
- qat_req->phy_out = dma_map_single(dev, &qat_req->out.enc.c,
+ qat_req->phy_out = dma_map_single(dev, &qat_req->out.rsa.enc.c,
sizeof(struct qat_rsa_output_params),
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, qat_req->phy_out)))
msg->pke_mid.src_data_addr = qat_req->phy_in;
msg->pke_mid.dest_data_addr = qat_req->phy_out;
- msg->pke_mid.opaque = (uint64_t)(__force long)req;
+ msg->pke_mid.opaque = (uint64_t)(__force long)qat_req;
msg->input_param_count = 3;
msg->output_param_count = 1;
do {
unmap_dst:
if (qat_req->dst_align)
dma_free_coherent(dev, ctx->key_sz, qat_req->dst_align,
- qat_req->out.enc.c);
+ qat_req->out.rsa.enc.c);
else
- if (!dma_mapping_error(dev, qat_req->out.enc.c))
- dma_unmap_single(dev, qat_req->out.enc.c, ctx->key_sz,
- DMA_FROM_DEVICE);
+ if (!dma_mapping_error(dev, qat_req->out.rsa.enc.c))
+ dma_unmap_single(dev, qat_req->out.rsa.enc.c,
+ ctx->key_sz, DMA_FROM_DEVICE);
unmap_src:
if (qat_req->src_align)
dma_free_coherent(dev, ctx->key_sz, qat_req->src_align,
- qat_req->in.enc.m);
+ qat_req->in.rsa.enc.m);
else
- if (!dma_mapping_error(dev, qat_req->in.enc.m))
- dma_unmap_single(dev, qat_req->in.enc.m, ctx->key_sz,
- DMA_TO_DEVICE);
+ if (!dma_mapping_error(dev, qat_req->in.rsa.enc.m))
+ dma_unmap_single(dev, qat_req->in.rsa.enc.m,
+ ctx->key_sz, DMA_TO_DEVICE);
return ret;
}
struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev = &GET_DEV(inst->accel_dev);
- struct qat_rsa_request *qat_req =
+ struct qat_asym_request *qat_req =
PTR_ALIGN(akcipher_request_ctx(req), 64);
struct icp_qat_fw_pke_request *msg = &qat_req->req;
int ret, ctr = 0;
memset(msg, '\0', sizeof(*msg));
ICP_QAT_FW_PKE_HDR_VALID_FLAG_SET(msg->pke_hdr,
ICP_QAT_FW_COMN_REQ_FLAG_SET);
- msg->pke_hdr.cd_pars.func_id = qat_rsa_dec_fn_id(ctx->key_sz);
+ msg->pke_hdr.cd_pars.func_id = ctx->crt_mode ?
+ qat_rsa_dec_fn_id_crt(ctx->key_sz) :
+ qat_rsa_dec_fn_id(ctx->key_sz);
if (unlikely(!msg->pke_hdr.cd_pars.func_id))
return -EINVAL;
- qat_req->ctx = ctx;
+ qat_req->cb = qat_rsa_cb;
+ qat_req->ctx.rsa = ctx;
+ qat_req->areq.rsa = req;
msg->pke_hdr.service_type = ICP_QAT_FW_COMN_REQ_CPM_FW_PKE;
msg->pke_hdr.comn_req_flags =
ICP_QAT_FW_COMN_FLAGS_BUILD(QAT_COMN_PTR_TYPE_FLAT,
QAT_COMN_CD_FLD_TYPE_64BIT_ADR);
- qat_req->in.dec.d = ctx->dma_d;
- qat_req->in.dec.n = ctx->dma_n;
+ if (ctx->crt_mode) {
+ qat_req->in.rsa.dec_crt.p = ctx->dma_p;
+ qat_req->in.rsa.dec_crt.q = ctx->dma_q;
+ qat_req->in.rsa.dec_crt.dp = ctx->dma_dp;
+ qat_req->in.rsa.dec_crt.dq = ctx->dma_dq;
+ qat_req->in.rsa.dec_crt.qinv = ctx->dma_qinv;
+ } else {
+ qat_req->in.rsa.dec.d = ctx->dma_d;
+ qat_req->in.rsa.dec.n = ctx->dma_n;
+ }
ret = -ENOMEM;
/*
*/
if (sg_is_last(req->src) && req->src_len == ctx->key_sz) {
qat_req->src_align = NULL;
- qat_req->in.dec.c = dma_map_single(dev, sg_virt(req->src),
+ qat_req->in.rsa.dec.c = dma_map_single(dev, sg_virt(req->src),
req->dst_len, DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(dev, qat_req->in.dec.c)))
+ if (unlikely(dma_mapping_error(dev, qat_req->in.rsa.dec.c)))
return ret;
} else {
int shift = ctx->key_sz - req->src_len;
qat_req->src_align = dma_zalloc_coherent(dev, ctx->key_sz,
- &qat_req->in.dec.c,
+ &qat_req->in.rsa.dec.c,
GFP_KERNEL);
if (unlikely(!qat_req->src_align))
return ret;
}
if (sg_is_last(req->dst) && req->dst_len == ctx->key_sz) {
qat_req->dst_align = NULL;
- qat_req->out.dec.m = dma_map_single(dev, sg_virt(req->dst),
+ qat_req->out.rsa.dec.m = dma_map_single(dev, sg_virt(req->dst),
req->dst_len,
DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(dev, qat_req->out.dec.m)))
+ if (unlikely(dma_mapping_error(dev, qat_req->out.rsa.dec.m)))
goto unmap_src;
} else {
qat_req->dst_align = dma_zalloc_coherent(dev, ctx->key_sz,
- &qat_req->out.dec.m,
+ &qat_req->out.rsa.dec.m,
GFP_KERNEL);
if (unlikely(!qat_req->dst_align))
goto unmap_src;
}
- qat_req->in.in_tab[3] = 0;
- qat_req->out.out_tab[1] = 0;
- qat_req->phy_in = dma_map_single(dev, &qat_req->in.dec.c,
+ if (ctx->crt_mode)
+ qat_req->in.rsa.in_tab[6] = 0;
+ else
+ qat_req->in.rsa.in_tab[3] = 0;
+ qat_req->out.rsa.out_tab[1] = 0;
+ qat_req->phy_in = dma_map_single(dev, &qat_req->in.rsa.dec.c,
sizeof(struct qat_rsa_input_params),
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, qat_req->phy_in)))
goto unmap_dst;
- qat_req->phy_out = dma_map_single(dev, &qat_req->out.dec.m,
+ qat_req->phy_out = dma_map_single(dev, &qat_req->out.rsa.dec.m,
sizeof(struct qat_rsa_output_params),
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(dev, qat_req->phy_out)))
msg->pke_mid.src_data_addr = qat_req->phy_in;
msg->pke_mid.dest_data_addr = qat_req->phy_out;
- msg->pke_mid.opaque = (uint64_t)(__force long)req;
- msg->input_param_count = 3;
+ msg->pke_mid.opaque = (uint64_t)(__force long)qat_req;
+ if (ctx->crt_mode)
+ msg->input_param_count = 6;
+ else
+ msg->input_param_count = 3;
+
msg->output_param_count = 1;
do {
ret = adf_send_message(ctx->inst->pke_tx, (uint32_t *)msg);
unmap_dst:
if (qat_req->dst_align)
dma_free_coherent(dev, ctx->key_sz, qat_req->dst_align,
- qat_req->out.dec.m);
+ qat_req->out.rsa.dec.m);
else
- if (!dma_mapping_error(dev, qat_req->out.dec.m))
- dma_unmap_single(dev, qat_req->out.dec.m, ctx->key_sz,
- DMA_FROM_DEVICE);
+ if (!dma_mapping_error(dev, qat_req->out.rsa.dec.m))
+ dma_unmap_single(dev, qat_req->out.rsa.dec.m,
+ ctx->key_sz, DMA_FROM_DEVICE);
unmap_src:
if (qat_req->src_align)
dma_free_coherent(dev, ctx->key_sz, qat_req->src_align,
- qat_req->in.dec.c);
+ qat_req->in.rsa.dec.c);
else
- if (!dma_mapping_error(dev, qat_req->in.dec.c))
- dma_unmap_single(dev, qat_req->in.dec.c, ctx->key_sz,
- DMA_TO_DEVICE);
+ if (!dma_mapping_error(dev, qat_req->in.rsa.dec.c))
+ dma_unmap_single(dev, qat_req->in.rsa.dec.c,
+ ctx->key_sz, DMA_TO_DEVICE);
return ret;
}
-int qat_rsa_get_n(void *context, size_t hdrlen, unsigned char tag,
- const void *value, size_t vlen)
+int qat_rsa_set_n(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
{
- struct qat_rsa_ctx *ctx = context;
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev = &GET_DEV(inst->accel_dev);
const char *ptr = value;
ctx->key_sz = vlen;
ret = -EINVAL;
- /* In FIPS mode only allow key size 2K & 3K */
- if (fips_enabled && (ctx->key_sz != 256 && ctx->key_sz != 384)) {
- pr_err("QAT: RSA: key size not allowed in FIPS mode\n");
- goto err;
- }
/* invalid key size provided */
if (!qat_rsa_enc_fn_id(ctx->key_sz))
goto err;
return ret;
}
-int qat_rsa_get_e(void *context, size_t hdrlen, unsigned char tag,
- const void *value, size_t vlen)
+int qat_rsa_set_e(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
{
- struct qat_rsa_ctx *ctx = context;
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev = &GET_DEV(inst->accel_dev);
const char *ptr = value;
}
ctx->e = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_e, GFP_KERNEL);
- if (!ctx->e) {
- ctx->e = NULL;
+ if (!ctx->e)
return -ENOMEM;
- }
+
memcpy(ctx->e + (ctx->key_sz - vlen), ptr, vlen);
return 0;
}
-int qat_rsa_get_d(void *context, size_t hdrlen, unsigned char tag,
- const void *value, size_t vlen)
+int qat_rsa_set_d(struct qat_rsa_ctx *ctx, const char *value, size_t vlen)
{
- struct qat_rsa_ctx *ctx = context;
struct qat_crypto_instance *inst = ctx->inst;
struct device *dev = &GET_DEV(inst->accel_dev);
const char *ptr = value;
if (!ctx->key_sz || !vlen || vlen > ctx->key_sz)
goto err;
- /* In FIPS mode only allow key size 2K & 3K */
- if (fips_enabled && (vlen != 256 && vlen != 384)) {
- pr_err("QAT: RSA: key size not allowed in FIPS mode\n");
- goto err;
- }
-
ret = -ENOMEM;
ctx->d = dma_zalloc_coherent(dev, ctx->key_sz, &ctx->dma_d, GFP_KERNEL);
if (!ctx->d)
return ret;
}
-static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key,
- unsigned int keylen, bool private)
+static void qat_rsa_drop_leading_zeros(const char **ptr, unsigned int *len)
{
- struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
- struct device *dev = &GET_DEV(ctx->inst->accel_dev);
- int ret;
+ while (!**ptr && *len) {
+ (*ptr)++;
+ (*len)--;
+ }
+}
+
+static void qat_rsa_setkey_crt(struct qat_rsa_ctx *ctx, struct rsa_key *rsa_key)
+{
+ struct qat_crypto_instance *inst = ctx->inst;
+ struct device *dev = &GET_DEV(inst->accel_dev);
+ const char *ptr;
+ unsigned int len;
+ unsigned int half_key_sz = ctx->key_sz / 2;
+
+ /* p */
+ ptr = rsa_key->p;
+ len = rsa_key->p_sz;
+ qat_rsa_drop_leading_zeros(&ptr, &len);
+ if (!len)
+ goto err;
+ ctx->p = dma_zalloc_coherent(dev, half_key_sz, &ctx->dma_p, GFP_KERNEL);
+ if (!ctx->p)
+ goto err;
+ memcpy(ctx->p + (half_key_sz - len), ptr, len);
+
+ /* q */
+ ptr = rsa_key->q;
+ len = rsa_key->q_sz;
+ qat_rsa_drop_leading_zeros(&ptr, &len);
+ if (!len)
+ goto free_p;
+ ctx->q = dma_zalloc_coherent(dev, half_key_sz, &ctx->dma_q, GFP_KERNEL);
+ if (!ctx->q)
+ goto free_p;
+ memcpy(ctx->q + (half_key_sz - len), ptr, len);
+
+ /* dp */
+ ptr = rsa_key->dp;
+ len = rsa_key->dp_sz;
+ qat_rsa_drop_leading_zeros(&ptr, &len);
+ if (!len)
+ goto free_q;
+ ctx->dp = dma_zalloc_coherent(dev, half_key_sz, &ctx->dma_dp,
+ GFP_KERNEL);
+ if (!ctx->dp)
+ goto free_q;
+ memcpy(ctx->dp + (half_key_sz - len), ptr, len);
+
+ /* dq */
+ ptr = rsa_key->dq;
+ len = rsa_key->dq_sz;
+ qat_rsa_drop_leading_zeros(&ptr, &len);
+ if (!len)
+ goto free_dp;
+ ctx->dq = dma_zalloc_coherent(dev, half_key_sz, &ctx->dma_dq,
+ GFP_KERNEL);
+ if (!ctx->dq)
+ goto free_dp;
+ memcpy(ctx->dq + (half_key_sz - len), ptr, len);
+
+ /* qinv */
+ ptr = rsa_key->qinv;
+ len = rsa_key->qinv_sz;
+ qat_rsa_drop_leading_zeros(&ptr, &len);
+ if (!len)
+ goto free_dq;
+ ctx->qinv = dma_zalloc_coherent(dev, half_key_sz, &ctx->dma_qinv,
+ GFP_KERNEL);
+ if (!ctx->qinv)
+ goto free_dq;
+ memcpy(ctx->qinv + (half_key_sz - len), ptr, len);
+
+ ctx->crt_mode = true;
+ return;
+
+free_dq:
+ memset(ctx->dq, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->dq, ctx->dma_dq);
+ ctx->dq = NULL;
+free_dp:
+ memset(ctx->dp, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->dp, ctx->dma_dp);
+ ctx->dp = NULL;
+free_q:
+ memset(ctx->q, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->q, ctx->dma_q);
+ ctx->q = NULL;
+free_p:
+ memset(ctx->p, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->p, ctx->dma_p);
+ ctx->p = NULL;
+err:
+ ctx->crt_mode = false;
+}
+
+static void qat_rsa_clear_ctx(struct device *dev, struct qat_rsa_ctx *ctx)
+{
+ unsigned int half_key_sz = ctx->key_sz / 2;
/* Free the old key if any */
if (ctx->n)
memset(ctx->d, '\0', ctx->key_sz);
dma_free_coherent(dev, ctx->key_sz, ctx->d, ctx->dma_d);
}
+ if (ctx->p) {
+ memset(ctx->p, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->p, ctx->dma_p);
+ }
+ if (ctx->q) {
+ memset(ctx->q, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->q, ctx->dma_q);
+ }
+ if (ctx->dp) {
+ memset(ctx->dp, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->dp, ctx->dma_dp);
+ }
+ if (ctx->dq) {
+ memset(ctx->dq, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->dq, ctx->dma_dq);
+ }
+ if (ctx->qinv) {
+ memset(ctx->qinv, '\0', half_key_sz);
+ dma_free_coherent(dev, half_key_sz, ctx->qinv, ctx->dma_qinv);
+ }
ctx->n = NULL;
ctx->e = NULL;
ctx->d = NULL;
+ ctx->p = NULL;
+ ctx->q = NULL;
+ ctx->dp = NULL;
+ ctx->dq = NULL;
+ ctx->qinv = NULL;
+ ctx->crt_mode = false;
+ ctx->key_sz = 0;
+}
+
+static int qat_rsa_setkey(struct crypto_akcipher *tfm, const void *key,
+ unsigned int keylen, bool private)
+{
+ struct qat_rsa_ctx *ctx = akcipher_tfm_ctx(tfm);
+ struct device *dev = &GET_DEV(ctx->inst->accel_dev);
+ struct rsa_key rsa_key;
+ int ret;
+
+ qat_rsa_clear_ctx(dev, ctx);
if (private)
- ret = asn1_ber_decoder(&qat_rsaprivkey_decoder, ctx, key,
- keylen);
+ ret = rsa_parse_priv_key(&rsa_key, key, keylen);
else
- ret = asn1_ber_decoder(&qat_rsapubkey_decoder, ctx, key,
- keylen);
+ ret = rsa_parse_pub_key(&rsa_key, key, keylen);
+ if (ret < 0)
+ goto free;
+
+ ret = qat_rsa_set_n(ctx, rsa_key.n, rsa_key.n_sz);
if (ret < 0)
goto free;
+ ret = qat_rsa_set_e(ctx, rsa_key.e, rsa_key.e_sz);
+ if (ret < 0)
+ goto free;
+ if (private) {
+ ret = qat_rsa_set_d(ctx, rsa_key.d, rsa_key.d_sz);
+ if (ret < 0)
+ goto free;
+ qat_rsa_setkey_crt(ctx, &rsa_key);
+ }
if (!ctx->n || !ctx->e) {
/* invalid key provided */
return 0;
free:
- if (ctx->d) {
- memset(ctx->d, '\0', ctx->key_sz);
- dma_free_coherent(dev, ctx->key_sz, ctx->d, ctx->dma_d);
- ctx->d = NULL;
- }
- if (ctx->e) {
- dma_free_coherent(dev, ctx->key_sz, ctx->e, ctx->dma_e);
- ctx->e = NULL;
- }
- if (ctx->n) {
- dma_free_coherent(dev, ctx->key_sz, ctx->n, ctx->dma_n);
- ctx->n = NULL;
- ctx->key_sz = 0;
- }
+ qat_rsa_clear_ctx(dev, ctx);
return ret;
}
.max_size = qat_rsa_max_size,
.init = qat_rsa_init_tfm,
.exit = qat_rsa_exit_tfm,
- .reqsize = sizeof(struct qat_rsa_request) + 64,
+ .reqsize = sizeof(struct qat_asym_request) + 64,
.base = {
.cra_name = "rsa",
.cra_driver_name = "qat-rsa",
},
};
+static struct kpp_alg dh = {
+ .set_secret = qat_dh_set_secret,
+ .generate_public_key = qat_dh_compute_value,
+ .compute_shared_secret = qat_dh_compute_value,
+ .max_size = qat_dh_max_size,
+ .init = qat_dh_init_tfm,
+ .exit = qat_dh_exit_tfm,
+ .reqsize = sizeof(struct qat_asym_request) + 64,
+ .base = {
+ .cra_name = "dh",
+ .cra_driver_name = "qat-dh",
+ .cra_priority = 1000,
+ .cra_module = THIS_MODULE,
+ .cra_ctxsize = sizeof(struct qat_dh_ctx),
+ },
+};
+
int qat_asym_algs_register(void)
{
int ret = 0;
if (++active_devs == 1) {
rsa.base.cra_flags = 0;
ret = crypto_register_akcipher(&rsa);
+ if (ret)
+ goto unlock;
+ ret = crypto_register_kpp(&dh);
}
+unlock:
mutex_unlock(&algs_lock);
return ret;
}
void qat_asym_algs_unregister(void)
{
mutex_lock(&algs_lock);
- if (--active_devs == 0)
+ if (--active_devs == 0) {
crypto_unregister_akcipher(&rsa);
+ crypto_unregister_kpp(&dh);
+ }
mutex_unlock(&algs_lock);
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff