// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2016 Broadcom */ #include <linux/err.h> #include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/interrupt.h> #include <linux/platform_device.h> #include <linux/scatterlist.h> #include <linux/crypto.h> #include <linux/kthread.h> #include <linux/rtnetlink.h> #include <linux/sched.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/io.h> #include <linux/bitops.h> #include <crypto/algapi.h> #include <crypto/aead.h> #include <crypto/internal/aead.h> #include <crypto/aes.h> #include <crypto/internal/des.h> #include <crypto/hmac.h> #include <crypto/sha.h> #include <crypto/md5.h> #include <crypto/authenc.h> #include <crypto/skcipher.h> #include <crypto/hash.h> #include <crypto/sha3.h> #include "util.h" #include "cipher.h" #include "spu.h" #include "spum.h" #include "spu2.h" /* ================= Device Structure ================== */ struct bcm_device_private iproc_priv; /* ==================== Parameters ===================== */ int flow_debug_logging; module_param(flow_debug_logging, int, 0644); MODULE_PARM_DESC(flow_debug_logging, "Enable Flow Debug Logging"); int packet_debug_logging; module_param(packet_debug_logging, int, 0644); MODULE_PARM_DESC(packet_debug_logging, "Enable Packet Debug Logging"); int debug_logging_sleep; module_param(debug_logging_sleep, int, 0644); MODULE_PARM_DESC(debug_logging_sleep, "Packet Debug Logging Sleep"); /* * The value of these module parameters is used to set the priority for each * algo type when this driver registers algos with the kernel crypto API. * To use a priority other than the default, set the priority in the insmod or * modprobe. Changing the module priority after init time has no effect. * * The default priorities are chosen to be lower (less preferred) than ARMv8 CE * algos, but more preferred than generic software algos. */ static int cipher_pri = 150; module_param(cipher_pri, int, 0644); MODULE_PARM_DESC(cipher_pri, "Priority for cipher algos"); static int hash_pri = 100; module_param(hash_pri, int, 0644); MODULE_PARM_DESC(hash_pri, "Priority for hash algos"); static int aead_pri = 150; module_param(aead_pri, int, 0644); MODULE_PARM_DESC(aead_pri, "Priority for AEAD algos"); /* A type 3 BCM header, expected to precede the SPU header for SPU-M. * Bits 3 and 4 in the first byte encode the channel number (the dma ringset). * 0x60 - ring 0 * 0x68 - ring 1 * 0x70 - ring 2 * 0x78 - ring 3 */ static char BCMHEADER[] = { 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x28 }; /* * Some SPU hw does not use BCM header on SPU messages. So BCM_HDR_LEN * is set dynamically after reading SPU type from device tree. */ #define BCM_HDR_LEN iproc_priv.bcm_hdr_len /* min and max time to sleep before retrying when mbox queue is full. usec */ #define MBOX_SLEEP_MIN 800 #define MBOX_SLEEP_MAX 1000 /** * select_channel() - Select a SPU channel to handle a crypto request. Selects * channel in round robin order. * * Return: channel index */ static u8 select_channel(void) { <------>u8 chan_idx = atomic_inc_return(&iproc_priv.next_chan); <------>return chan_idx % iproc_priv.spu.num_chan; } /** * spu_skcipher_rx_sg_create() - Build up the scatterlist of buffers used to * receive a SPU response message for an skcipher request. Includes buffers to * catch SPU message headers and the response data. * @mssg: mailbox message containing the receive sg * @rctx: crypto request context * @rx_frag_num: number of scatterlist elements required to hold the * SPU response message * @chunksize: Number of bytes of response data expected * @stat_pad_len: Number of bytes required to pad the STAT field to * a 4-byte boundary * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Returns: * 0 if successful * < 0 if an error */ static int spu_skcipher_rx_sg_create(struct brcm_message *mssg, <------><------><------> struct iproc_reqctx_s *rctx, <------><------><------> u8 rx_frag_num, <------><------><------> unsigned int chunksize, u32 stat_pad_len) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 datalen; /* Number of bytes of response data expected */ <------>mssg->spu.dst = kcalloc(rx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (!mssg->spu.dst) <------><------>return -ENOMEM; <------>sg = mssg->spu.dst; <------>sg_init_table(sg, rx_frag_num); <------>/* Space for SPU message header */ <------>sg_set_buf(sg++, rctx->msg_buf.spu_resp_hdr, ctx->spu_resp_hdr_len); <------>/* If XTS tweak in payload, add buffer to receive encrypted tweak */ <------>if ((ctx->cipher.mode == CIPHER_MODE_XTS) && <------> spu->spu_xts_tweak_in_payload()) <------><------>sg_set_buf(sg++, rctx->msg_buf.c.supdt_tweak, <------><------><------> SPU_XTS_TWEAK_SIZE); <------>/* Copy in each dst sg entry from request, up to chunksize */ <------>datalen = spu_msg_sg_add(&sg, &rctx->dst_sg, &rctx->dst_skip, <------><------><------><------> rctx->dst_nents, chunksize); <------>if (datalen < chunksize) { <------><------>pr_err("%s(): failed to copy dst sg to mbox msg. chunksize %u, datalen %u", <------><------> __func__, chunksize, datalen); <------><------>return -EFAULT; <------>} <------>if (stat_pad_len) <------><------>sg_set_buf(sg++, rctx->msg_buf.rx_stat_pad, stat_pad_len); <------>memset(rctx->msg_buf.rx_stat, 0, SPU_RX_STATUS_LEN); <------>sg_set_buf(sg, rctx->msg_buf.rx_stat, spu->spu_rx_status_len()); <------>return 0; } /** * spu_skcipher_tx_sg_create() - Build up the scatterlist of buffers used to * send a SPU request message for an skcipher request. Includes SPU message * headers and the request data. * @mssg: mailbox message containing the transmit sg * @rctx: crypto request context * @tx_frag_num: number of scatterlist elements required to construct the * SPU request message * @chunksize: Number of bytes of request data * @pad_len: Number of pad bytes * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Returns: * 0 if successful * < 0 if an error */ static int spu_skcipher_tx_sg_create(struct brcm_message *mssg, <------><------><------> struct iproc_reqctx_s *rctx, <------><------><------> u8 tx_frag_num, unsigned int chunksize, u32 pad_len) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 datalen; /* Number of bytes of response data expected */ <------>u32 stat_len; <------>mssg->spu.src = kcalloc(tx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (unlikely(!mssg->spu.src)) <------><------>return -ENOMEM; <------>sg = mssg->spu.src; <------>sg_init_table(sg, tx_frag_num); <------>sg_set_buf(sg++, rctx->msg_buf.bcm_spu_req_hdr, <------><------> BCM_HDR_LEN + ctx->spu_req_hdr_len); <------>/* if XTS tweak in payload, copy from IV (where crypto API puts it) */ <------>if ((ctx->cipher.mode == CIPHER_MODE_XTS) && <------> spu->spu_xts_tweak_in_payload()) <------><------>sg_set_buf(sg++, rctx->msg_buf.iv_ctr, SPU_XTS_TWEAK_SIZE); <------>/* Copy in each src sg entry from request, up to chunksize */ <------>datalen = spu_msg_sg_add(&sg, &rctx->src_sg, &rctx->src_skip, <------><------><------><------> rctx->src_nents, chunksize); <------>if (unlikely(datalen < chunksize)) { <------><------>pr_err("%s(): failed to copy src sg to mbox msg", <------><------> __func__); <------><------>return -EFAULT; <------>} <------>if (pad_len) <------><------>sg_set_buf(sg++, rctx->msg_buf.spu_req_pad, pad_len); <------>stat_len = spu->spu_tx_status_len(); <------>if (stat_len) { <------><------>memset(rctx->msg_buf.tx_stat, 0, stat_len); <------><------>sg_set_buf(sg, rctx->msg_buf.tx_stat, stat_len); <------>} <------>return 0; } static int mailbox_send_message(struct brcm_message *mssg, u32 flags, <------><------><------><------>u8 chan_idx) { <------>int err; <------>int retry_cnt = 0; <------>struct device *dev = &(iproc_priv.pdev->dev); <------>err = mbox_send_message(iproc_priv.mbox[chan_idx], mssg); <------>if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) { <------><------>while ((err == -ENOBUFS) && (retry_cnt < SPU_MB_RETRY_MAX)) { <------><------><------>/* <------><------><------> * Mailbox queue is full. Since MAY_SLEEP is set, assume <------><------><------> * not in atomic context and we can wait and try again. <------><------><------> */ <------><------><------>retry_cnt++; <------><------><------>usleep_range(MBOX_SLEEP_MIN, MBOX_SLEEP_MAX); <------><------><------>err = mbox_send_message(iproc_priv.mbox[chan_idx], <------><------><------><------><------><------>mssg); <------><------><------>atomic_inc(&iproc_priv.mb_no_spc); <------><------>} <------>} <------>if (err < 0) { <------><------>atomic_inc(&iproc_priv.mb_send_fail); <------><------>return err; <------>} <------>/* Check error returned by mailbox controller */ <------>err = mssg->error; <------>if (unlikely(err < 0)) { <------><------>dev_err(dev, "message error %d", err); <------><------>/* Signal txdone for mailbox channel */ <------>} <------>/* Signal txdone for mailbox channel */ <------>mbox_client_txdone(iproc_priv.mbox[chan_idx], err); <------>return err; } /** * handle_skcipher_req() - Submit as much of a block cipher request as fits in * a single SPU request message, starting at the current position in the request * data. * @rctx: Crypto request context * * This may be called on the crypto API thread, or, when a request is so large * it must be broken into multiple SPU messages, on the thread used to invoke * the response callback. When requests are broken into multiple SPU * messages, we assume subsequent messages depend on previous results, and * thus always wait for previous results before submitting the next message. * Because requests are submitted in lock step like this, there is no need * to synchronize access to request data structures. * * Return: -EINPROGRESS: request has been accepted and result will be returned * asynchronously * Any other value indicates an error */ static int handle_skcipher_req(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_async_request *areq = rctx->parent; <------>struct skcipher_request *req = <------> container_of(areq, struct skcipher_request, base); <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>struct spu_cipher_parms cipher_parms; <------>int err; <------>unsigned int chunksize; /* Num bytes of request to submit */ <------>int remaining; /* Bytes of request still to process */ <------>int chunk_start; /* Beginning of data for current SPU msg */ <------>/* IV or ctr value to use in this SPU msg */ <------>u8 local_iv_ctr[MAX_IV_SIZE]; <------>u32 stat_pad_len; /* num bytes to align status field */ <------>u32 pad_len; /* total length of all padding */ <------>struct brcm_message *mssg; /* mailbox message */ <------>/* number of entries in src and dst sg in mailbox message. */ <------>u8 rx_frag_num = 2; /* response header and STATUS */ <------>u8 tx_frag_num = 1; /* request header */ <------>flow_log("%s\n", __func__); <------>cipher_parms.alg = ctx->cipher.alg; <------>cipher_parms.mode = ctx->cipher.mode; <------>cipher_parms.type = ctx->cipher_type; <------>cipher_parms.key_len = ctx->enckeylen; <------>cipher_parms.key_buf = ctx->enckey; <------>cipher_parms.iv_buf = local_iv_ctr; <------>cipher_parms.iv_len = rctx->iv_ctr_len; <------>mssg = &rctx->mb_mssg; <------>chunk_start = rctx->src_sent; <------>remaining = rctx->total_todo - chunk_start; <------>/* determine the chunk we are breaking off and update the indexes */ <------>if ((ctx->max_payload != SPU_MAX_PAYLOAD_INF) && <------> (remaining > ctx->max_payload)) <------><------>chunksize = ctx->max_payload; <------>else <------><------>chunksize = remaining; <------>rctx->src_sent += chunksize; <------>rctx->total_sent = rctx->src_sent; <------>/* Count number of sg entries to be included in this request */ <------>rctx->src_nents = spu_sg_count(rctx->src_sg, rctx->src_skip, chunksize); <------>rctx->dst_nents = spu_sg_count(rctx->dst_sg, rctx->dst_skip, chunksize); <------>if ((ctx->cipher.mode == CIPHER_MODE_CBC) && <------> rctx->is_encrypt && chunk_start) <------><------>/* <------><------> * Encrypting non-first first chunk. Copy last block of <------><------> * previous result to IV for this chunk. <------><------> */ <------><------>sg_copy_part_to_buf(req->dst, rctx->msg_buf.iv_ctr, <------><------><------><------> rctx->iv_ctr_len, <------><------><------><------> chunk_start - rctx->iv_ctr_len); <------>if (rctx->iv_ctr_len) { <------><------>/* get our local copy of the iv */ <------><------>__builtin_memcpy(local_iv_ctr, rctx->msg_buf.iv_ctr, <------><------><------><------> rctx->iv_ctr_len); <------><------>/* generate the next IV if possible */ <------><------>if ((ctx->cipher.mode == CIPHER_MODE_CBC) && <------><------> !rctx->is_encrypt) { <------><------><------>/* <------><------><------> * CBC Decrypt: next IV is the last ciphertext block in <------><------><------> * this chunk <------><------><------> */ <------><------><------>sg_copy_part_to_buf(req->src, rctx->msg_buf.iv_ctr, <------><------><------><------><------> rctx->iv_ctr_len, <------><------><------><------><------> rctx->src_sent - rctx->iv_ctr_len); <------><------>} else if (ctx->cipher.mode == CIPHER_MODE_CTR) { <------><------><------>/* <------><------><------> * The SPU hardware increments the counter once for <------><------><------> * each AES block of 16 bytes. So update the counter <------><------><------> * for the next chunk, if there is one. Note that for <------><------><------> * this chunk, the counter has already been copied to <------><------><------> * local_iv_ctr. We can assume a block size of 16, <------><------><------> * because we only support CTR mode for AES, not for <------><------><------> * any other cipher alg. <------><------><------> */ <------><------><------>add_to_ctr(rctx->msg_buf.iv_ctr, chunksize >> 4); <------><------>} <------>} <------>if (ctx->max_payload == SPU_MAX_PAYLOAD_INF) <------><------>flow_log("max_payload infinite\n"); <------>else <------><------>flow_log("max_payload %u\n", ctx->max_payload); <------>flow_log("sent:%u start:%u remains:%u size:%u\n", <------><------> rctx->src_sent, chunk_start, remaining, chunksize); <------>/* Copy SPU header template created at setkey time */ <------>memcpy(rctx->msg_buf.bcm_spu_req_hdr, ctx->bcm_spu_req_hdr, <------> sizeof(rctx->msg_buf.bcm_spu_req_hdr)); <------>spu->spu_cipher_req_finish(rctx->msg_buf.bcm_spu_req_hdr + BCM_HDR_LEN, <------><------><------><------> ctx->spu_req_hdr_len, !(rctx->is_encrypt), <------><------><------><------> &cipher_parms, chunksize); <------>atomic64_add(chunksize, &iproc_priv.bytes_out); <------>stat_pad_len = spu->spu_wordalign_padlen(chunksize); <------>if (stat_pad_len) <------><------>rx_frag_num++; <------>pad_len = stat_pad_len; <------>if (pad_len) { <------><------>tx_frag_num++; <------><------>spu->spu_request_pad(rctx->msg_buf.spu_req_pad, 0, <------><------><------><------> 0, ctx->auth.alg, ctx->auth.mode, <------><------><------><------> rctx->total_sent, stat_pad_len); <------>} <------>spu->spu_dump_msg_hdr(rctx->msg_buf.bcm_spu_req_hdr + BCM_HDR_LEN, <------><------><------> ctx->spu_req_hdr_len); <------>packet_log("payload:\n"); <------>dump_sg(rctx->src_sg, rctx->src_skip, chunksize); <------>packet_dump(" pad: ", rctx->msg_buf.spu_req_pad, pad_len); <------>/* <------> * Build mailbox message containing SPU request msg and rx buffers <------> * to catch response message <------> */ <------>memset(mssg, 0, sizeof(*mssg)); <------>mssg->type = BRCM_MESSAGE_SPU; <------>mssg->ctx = rctx; /* Will be returned in response */ <------>/* Create rx scatterlist to catch result */ <------>rx_frag_num += rctx->dst_nents; <------>if ((ctx->cipher.mode == CIPHER_MODE_XTS) && <------> spu->spu_xts_tweak_in_payload()) <------><------>rx_frag_num++; /* extra sg to insert tweak */ <------>err = spu_skcipher_rx_sg_create(mssg, rctx, rx_frag_num, chunksize, <------><------><------><------><------> stat_pad_len); <------>if (err) <------><------>return err; <------>/* Create tx scatterlist containing SPU request message */ <------>tx_frag_num += rctx->src_nents; <------>if (spu->spu_tx_status_len()) <------><------>tx_frag_num++; <------>if ((ctx->cipher.mode == CIPHER_MODE_XTS) && <------> spu->spu_xts_tweak_in_payload()) <------><------>tx_frag_num++; /* extra sg to insert tweak */ <------>err = spu_skcipher_tx_sg_create(mssg, rctx, tx_frag_num, chunksize, <------><------><------><------><------> pad_len); <------>if (err) <------><------>return err; <------>err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx); <------>if (unlikely(err < 0)) <------><------>return err; <------>return -EINPROGRESS; } /** * handle_skcipher_resp() - Process a block cipher SPU response. Updates the * total received count for the request and updates global stats. * @rctx: Crypto request context */ static void handle_skcipher_resp(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; #ifdef DEBUG <------>struct crypto_async_request *areq = rctx->parent; <------>struct skcipher_request *req = skcipher_request_cast(areq); #endif <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 payload_len; <------>/* See how much data was returned */ <------>payload_len = spu->spu_payload_length(rctx->msg_buf.spu_resp_hdr); <------>/* <------> * In XTS mode, the first SPU_XTS_TWEAK_SIZE bytes may be the <------> * encrypted tweak ("i") value; we don't count those. <------> */ <------>if ((ctx->cipher.mode == CIPHER_MODE_XTS) && <------> spu->spu_xts_tweak_in_payload() && <------> (payload_len >= SPU_XTS_TWEAK_SIZE)) <------><------>payload_len -= SPU_XTS_TWEAK_SIZE; <------>atomic64_add(payload_len, &iproc_priv.bytes_in); <------>flow_log("%s() offset: %u, bd_len: %u BD:\n", <------><------> __func__, rctx->total_received, payload_len); <------>dump_sg(req->dst, rctx->total_received, payload_len); <------>rctx->total_received += payload_len; <------>if (rctx->total_received == rctx->total_todo) { <------><------>atomic_inc(&iproc_priv.op_counts[SPU_OP_CIPHER]); <------><------>atomic_inc( <------><------> &iproc_priv.cipher_cnt[ctx->cipher.alg][ctx->cipher.mode]); <------>} } /** * spu_ahash_rx_sg_create() - Build up the scatterlist of buffers used to * receive a SPU response message for an ahash request. * @mssg: mailbox message containing the receive sg * @rctx: crypto request context * @rx_frag_num: number of scatterlist elements required to hold the * SPU response message * @digestsize: length of hash digest, in bytes * @stat_pad_len: Number of bytes required to pad the STAT field to * a 4-byte boundary * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Return: * 0 if successful * < 0 if an error */ static int spu_ahash_rx_sg_create(struct brcm_message *mssg, <------><------> struct iproc_reqctx_s *rctx, <------><------> u8 rx_frag_num, unsigned int digestsize, <------><------> u32 stat_pad_len) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>mssg->spu.dst = kcalloc(rx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (!mssg->spu.dst) <------><------>return -ENOMEM; <------>sg = mssg->spu.dst; <------>sg_init_table(sg, rx_frag_num); <------>/* Space for SPU message header */ <------>sg_set_buf(sg++, rctx->msg_buf.spu_resp_hdr, ctx->spu_resp_hdr_len); <------>/* Space for digest */ <------>sg_set_buf(sg++, rctx->msg_buf.digest, digestsize); <------>if (stat_pad_len) <------><------>sg_set_buf(sg++, rctx->msg_buf.rx_stat_pad, stat_pad_len); <------>memset(rctx->msg_buf.rx_stat, 0, SPU_RX_STATUS_LEN); <------>sg_set_buf(sg, rctx->msg_buf.rx_stat, spu->spu_rx_status_len()); <------>return 0; } /** * spu_ahash_tx_sg_create() - Build up the scatterlist of buffers used to send * a SPU request message for an ahash request. Includes SPU message headers and * the request data. * @mssg: mailbox message containing the transmit sg * @rctx: crypto request context * @tx_frag_num: number of scatterlist elements required to construct the * SPU request message * @spu_hdr_len: length in bytes of SPU message header * @hash_carry_len: Number of bytes of data carried over from previous req * @new_data_len: Number of bytes of new request data * @pad_len: Number of pad bytes * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Return: * 0 if successful * < 0 if an error */ static int spu_ahash_tx_sg_create(struct brcm_message *mssg, <------><------> struct iproc_reqctx_s *rctx, <------><------> u8 tx_frag_num, <------><------> u32 spu_hdr_len, <------><------> unsigned int hash_carry_len, <------><------> unsigned int new_data_len, u32 pad_len) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>u32 datalen; /* Number of bytes of response data expected */ <------>u32 stat_len; <------>mssg->spu.src = kcalloc(tx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (!mssg->spu.src) <------><------>return -ENOMEM; <------>sg = mssg->spu.src; <------>sg_init_table(sg, tx_frag_num); <------>sg_set_buf(sg++, rctx->msg_buf.bcm_spu_req_hdr, <------><------> BCM_HDR_LEN + spu_hdr_len); <------>if (hash_carry_len) <------><------>sg_set_buf(sg++, rctx->hash_carry, hash_carry_len); <------>if (new_data_len) { <------><------>/* Copy in each src sg entry from request, up to chunksize */ <------><------>datalen = spu_msg_sg_add(&sg, &rctx->src_sg, &rctx->src_skip, <------><------><------><------><------> rctx->src_nents, new_data_len); <------><------>if (datalen < new_data_len) { <------><------><------>pr_err("%s(): failed to copy src sg to mbox msg", <------><------><------> __func__); <------><------><------>return -EFAULT; <------><------>} <------>} <------>if (pad_len) <------><------>sg_set_buf(sg++, rctx->msg_buf.spu_req_pad, pad_len); <------>stat_len = spu->spu_tx_status_len(); <------>if (stat_len) { <------><------>memset(rctx->msg_buf.tx_stat, 0, stat_len); <------><------>sg_set_buf(sg, rctx->msg_buf.tx_stat, stat_len); <------>} <------>return 0; } /** * handle_ahash_req() - Process an asynchronous hash request from the crypto * API. * @rctx: Crypto request context * * Builds a SPU request message embedded in a mailbox message and submits the * mailbox message on a selected mailbox channel. The SPU request message is * constructed as a scatterlist, including entries from the crypto API's * src scatterlist to avoid copying the data to be hashed. This function is * called either on the thread from the crypto API, or, in the case that the * crypto API request is too large to fit in a single SPU request message, * on the thread that invokes the receive callback with a response message. * Because some operations require the response from one chunk before the next * chunk can be submitted, we always wait for the response for the previous * chunk before submitting the next chunk. Because requests are submitted in * lock step like this, there is no need to synchronize access to request data * structures. * * Return: * -EINPROGRESS: request has been submitted to SPU and response will be * returned asynchronously * -EAGAIN: non-final request included a small amount of data, which for * efficiency we did not submit to the SPU, but instead stored * to be submitted to the SPU with the next part of the request * other: an error code */ static int handle_ahash_req(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_async_request *areq = rctx->parent; <------>struct ahash_request *req = ahash_request_cast(areq); <------>struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); <------>struct crypto_tfm *tfm = crypto_ahash_tfm(ahash); <------>unsigned int blocksize = crypto_tfm_alg_blocksize(tfm); <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>/* number of bytes still to be hashed in this req */ <------>unsigned int nbytes_to_hash = 0; <------>int err; <------>unsigned int chunksize = 0; /* length of hash carry + new data */ <------>/* <------> * length of new data, not from hash carry, to be submitted in <------> * this hw request <------> */ <------>unsigned int new_data_len; <------>unsigned int __maybe_unused chunk_start = 0; <------>u32 db_size; /* Length of data field, incl gcm and hash padding */ <------>int pad_len = 0; /* total pad len, including gcm, hash, stat padding */ <------>u32 data_pad_len = 0; /* length of GCM/CCM padding */ <------>u32 stat_pad_len = 0; /* length of padding to align STATUS word */ <------>struct brcm_message *mssg; /* mailbox message */ <------>struct spu_request_opts req_opts; <------>struct spu_cipher_parms cipher_parms; <------>struct spu_hash_parms hash_parms; <------>struct spu_aead_parms aead_parms; <------>unsigned int local_nbuf; <------>u32 spu_hdr_len; <------>unsigned int digestsize; <------>u16 rem = 0; <------>/* <------> * number of entries in src and dst sg. Always includes SPU msg header. <------> * rx always includes a buffer to catch digest and STATUS. <------> */ <------>u8 rx_frag_num = 3; <------>u8 tx_frag_num = 1; <------>flow_log("total_todo %u, total_sent %u\n", <------><------> rctx->total_todo, rctx->total_sent); <------>memset(&req_opts, 0, sizeof(req_opts)); <------>memset(&cipher_parms, 0, sizeof(cipher_parms)); <------>memset(&hash_parms, 0, sizeof(hash_parms)); <------>memset(&aead_parms, 0, sizeof(aead_parms)); <------>req_opts.bd_suppress = true; <------>hash_parms.alg = ctx->auth.alg; <------>hash_parms.mode = ctx->auth.mode; <------>hash_parms.type = HASH_TYPE_NONE; <------>hash_parms.key_buf = (u8 *)ctx->authkey; <------>hash_parms.key_len = ctx->authkeylen; <------>/* <------> * For hash algorithms below assignment looks bit odd but <------> * it's needed for AES-XCBC and AES-CMAC hash algorithms <------> * to differentiate between 128, 192, 256 bit key values. <------> * Based on the key values, hash algorithm is selected. <------> * For example for 128 bit key, hash algorithm is AES-128. <------> */ <------>cipher_parms.type = ctx->cipher_type; <------>mssg = &rctx->mb_mssg; <------>chunk_start = rctx->src_sent; <------>/* <------> * Compute the amount remaining to hash. This may include data <------> * carried over from previous requests. <------> */ <------>nbytes_to_hash = rctx->total_todo - rctx->total_sent; <------>chunksize = nbytes_to_hash; <------>if ((ctx->max_payload != SPU_MAX_PAYLOAD_INF) && <------> (chunksize > ctx->max_payload)) <------><------>chunksize = ctx->max_payload; <------>/* <------> * If this is not a final request and the request data is not a multiple <------> * of a full block, then simply park the extra data and prefix it to the <------> * data for the next request. <------> */ <------>if (!rctx->is_final) { <------><------>u8 *dest = rctx->hash_carry + rctx->hash_carry_len; <------><------>u16 new_len; /* len of data to add to hash carry */ <------><------>rem = chunksize % blocksize; /* remainder */ <------><------>if (rem) { <------><------><------>/* chunksize not a multiple of blocksize */ <------><------><------>chunksize -= rem; <------><------><------>if (chunksize == 0) { <------><------><------><------>/* Don't have a full block to submit to hw */ <------><------><------><------>new_len = rem - rctx->hash_carry_len; <------><------><------><------>sg_copy_part_to_buf(req->src, dest, new_len, <------><------><------><------><------><------> rctx->src_sent); <------><------><------><------>rctx->hash_carry_len = rem; <------><------><------><------>flow_log("Exiting with hash carry len: %u\n", <------><------><------><------><------> rctx->hash_carry_len); <------><------><------><------>packet_dump(" buf: ", <------><------><------><------><------> rctx->hash_carry, <------><------><------><------><------> rctx->hash_carry_len); <------><------><------><------>return -EAGAIN; <------><------><------>} <------><------>} <------>} <------>/* if we have hash carry, then prefix it to the data in this request */ <------>local_nbuf = rctx->hash_carry_len; <------>rctx->hash_carry_len = 0; <------>if (local_nbuf) <------><------>tx_frag_num++; <------>new_data_len = chunksize - local_nbuf; <------>/* Count number of sg entries to be used in this request */ <------>rctx->src_nents = spu_sg_count(rctx->src_sg, rctx->src_skip, <------><------><------><------> new_data_len); <------>/* AES hashing keeps key size in type field, so need to copy it here */ <------>if (hash_parms.alg == HASH_ALG_AES) <------><------>hash_parms.type = (enum hash_type)cipher_parms.type; <------>else <------><------>hash_parms.type = spu->spu_hash_type(rctx->total_sent); <------>digestsize = spu->spu_digest_size(ctx->digestsize, ctx->auth.alg, <------><------><------><------><------> hash_parms.type); <------>hash_parms.digestsize = digestsize; <------>/* update the indexes */ <------>rctx->total_sent += chunksize; <------>/* if you sent a prebuf then that wasn't from this req->src */ <------>rctx->src_sent += new_data_len; <------>if ((rctx->total_sent == rctx->total_todo) && rctx->is_final) <------><------>hash_parms.pad_len = spu->spu_hash_pad_len(hash_parms.alg, <------><------><------><------><------><------><------> hash_parms.mode, <------><------><------><------><------><------><------> chunksize, <------><------><------><------><------><------><------> blocksize); <------>/* <------> * If a non-first chunk, then include the digest returned from the <------> * previous chunk so that hw can add to it (except for AES types). <------> */ <------>if ((hash_parms.type == HASH_TYPE_UPDT) && <------> (hash_parms.alg != HASH_ALG_AES)) { <------><------>hash_parms.key_buf = rctx->incr_hash; <------><------>hash_parms.key_len = digestsize; <------>} <------>atomic64_add(chunksize, &iproc_priv.bytes_out); <------>flow_log("%s() final: %u nbuf: %u ", <------><------> __func__, rctx->is_final, local_nbuf); <------>if (ctx->max_payload == SPU_MAX_PAYLOAD_INF) <------><------>flow_log("max_payload infinite\n"); <------>else <------><------>flow_log("max_payload %u\n", ctx->max_payload); <------>flow_log("chunk_start: %u chunk_size: %u\n", chunk_start, chunksize); <------>/* Prepend SPU header with type 3 BCM header */ <------>memcpy(rctx->msg_buf.bcm_spu_req_hdr, BCMHEADER, BCM_HDR_LEN); <------>hash_parms.prebuf_len = local_nbuf; <------>spu_hdr_len = spu->spu_create_request(rctx->msg_buf.bcm_spu_req_hdr + <------><------><------><------><------> BCM_HDR_LEN, <------><------><------><------><------> &req_opts, &cipher_parms, <------><------><------><------><------> &hash_parms, &aead_parms, <------><------><------><------><------> new_data_len); <------>if (spu_hdr_len == 0) { <------><------>pr_err("Failed to create SPU request header\n"); <------><------>return -EFAULT; <------>} <------>/* <------> * Determine total length of padding required. Put all padding in one <------> * buffer. <------> */ <------>data_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, chunksize); <------>db_size = spu_real_db_size(0, 0, local_nbuf, new_data_len, <------><------><------><------> 0, 0, hash_parms.pad_len); <------>if (spu->spu_tx_status_len()) <------><------>stat_pad_len = spu->spu_wordalign_padlen(db_size); <------>if (stat_pad_len) <------><------>rx_frag_num++; <------>pad_len = hash_parms.pad_len + data_pad_len + stat_pad_len; <------>if (pad_len) { <------><------>tx_frag_num++; <------><------>spu->spu_request_pad(rctx->msg_buf.spu_req_pad, data_pad_len, <------><------><------><------> hash_parms.pad_len, ctx->auth.alg, <------><------><------><------> ctx->auth.mode, rctx->total_sent, <------><------><------><------> stat_pad_len); <------>} <------>spu->spu_dump_msg_hdr(rctx->msg_buf.bcm_spu_req_hdr + BCM_HDR_LEN, <------><------><------> spu_hdr_len); <------>packet_dump(" prebuf: ", rctx->hash_carry, local_nbuf); <------>flow_log("Data:\n"); <------>dump_sg(rctx->src_sg, rctx->src_skip, new_data_len); <------>packet_dump(" pad: ", rctx->msg_buf.spu_req_pad, pad_len); <------>/* <------> * Build mailbox message containing SPU request msg and rx buffers <------> * to catch response message <------> */ <------>memset(mssg, 0, sizeof(*mssg)); <------>mssg->type = BRCM_MESSAGE_SPU; <------>mssg->ctx = rctx; /* Will be returned in response */ <------>/* Create rx scatterlist to catch result */ <------>err = spu_ahash_rx_sg_create(mssg, rctx, rx_frag_num, digestsize, <------><------><------><------> stat_pad_len); <------>if (err) <------><------>return err; <------>/* Create tx scatterlist containing SPU request message */ <------>tx_frag_num += rctx->src_nents; <------>if (spu->spu_tx_status_len()) <------><------>tx_frag_num++; <------>err = spu_ahash_tx_sg_create(mssg, rctx, tx_frag_num, spu_hdr_len, <------><------><------><------> local_nbuf, new_data_len, pad_len); <------>if (err) <------><------>return err; <------>err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx); <------>if (unlikely(err < 0)) <------><------>return err; <------>return -EINPROGRESS; } /** * spu_hmac_outer_hash() - Request synchonous software compute of the outer hash * for an HMAC request. * @req: The HMAC request from the crypto API * @ctx: The session context * * Return: 0 if synchronous hash operation successful * -EINVAL if the hash algo is unrecognized * any other value indicates an error */ static int spu_hmac_outer_hash(struct ahash_request *req, <------><------><------> struct iproc_ctx_s *ctx) { <------>struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); <------>unsigned int blocksize = <------><------>crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash)); <------>int rc; <------>switch (ctx->auth.alg) { <------>case HASH_ALG_MD5: <------><------>rc = do_shash("md5", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>case HASH_ALG_SHA1: <------><------>rc = do_shash("sha1", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>case HASH_ALG_SHA224: <------><------>rc = do_shash("sha224", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>case HASH_ALG_SHA256: <------><------>rc = do_shash("sha256", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>case HASH_ALG_SHA384: <------><------>rc = do_shash("sha384", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>case HASH_ALG_SHA512: <------><------>rc = do_shash("sha512", req->result, ctx->opad, blocksize, <------><------><------> req->result, ctx->digestsize, NULL, 0); <------><------>break; <------>default: <------><------>pr_err("%s() Error : unknown hmac type\n", __func__); <------><------>rc = -EINVAL; <------>} <------>return rc; } /** * ahash_req_done() - Process a hash result from the SPU hardware. * @rctx: Crypto request context * * Return: 0 if successful * < 0 if an error */ static int ahash_req_done(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_async_request *areq = rctx->parent; <------>struct ahash_request *req = ahash_request_cast(areq); <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>int err; <------>memcpy(req->result, rctx->msg_buf.digest, ctx->digestsize); <------>if (spu->spu_type == SPU_TYPE_SPUM) { <------><------>/* byte swap the output from the UPDT function to network byte <------><------> * order <------><------> */ <------><------>if (ctx->auth.alg == HASH_ALG_MD5) { <------><------><------>__swab32s((u32 *)req->result); <------><------><------>__swab32s(((u32 *)req->result) + 1); <------><------><------>__swab32s(((u32 *)req->result) + 2); <------><------><------>__swab32s(((u32 *)req->result) + 3); <------><------><------>__swab32s(((u32 *)req->result) + 4); <------><------>} <------>} <------>flow_dump(" digest ", req->result, ctx->digestsize); <------>/* if this an HMAC then do the outer hash */ <------>if (rctx->is_sw_hmac) { <------><------>err = spu_hmac_outer_hash(req, ctx); <------><------>if (err < 0) <------><------><------>return err; <------><------>flow_dump(" hmac: ", req->result, ctx->digestsize); <------>} <------>if (rctx->is_sw_hmac || ctx->auth.mode == HASH_MODE_HMAC) { <------><------>atomic_inc(&iproc_priv.op_counts[SPU_OP_HMAC]); <------><------>atomic_inc(&iproc_priv.hmac_cnt[ctx->auth.alg]); <------>} else { <------><------>atomic_inc(&iproc_priv.op_counts[SPU_OP_HASH]); <------><------>atomic_inc(&iproc_priv.hash_cnt[ctx->auth.alg]); <------>} <------>return 0; } /** * handle_ahash_resp() - Process a SPU response message for a hash request. * Checks if the entire crypto API request has been processed, and if so, * invokes post processing on the result. * @rctx: Crypto request context */ static void handle_ahash_resp(struct iproc_reqctx_s *rctx) { <------>struct iproc_ctx_s *ctx = rctx->ctx; #ifdef DEBUG <------>struct crypto_async_request *areq = rctx->parent; <------>struct ahash_request *req = ahash_request_cast(areq); <------>struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); <------>unsigned int blocksize = <------><------>crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash)); #endif <------>/* <------> * Save hash to use as input to next op if incremental. Might be copying <------> * too much, but that's easier than figuring out actual digest size here <------> */ <------>memcpy(rctx->incr_hash, rctx->msg_buf.digest, MAX_DIGEST_SIZE); <------>flow_log("%s() blocksize:%u digestsize:%u\n", <------><------> __func__, blocksize, ctx->digestsize); <------>atomic64_add(ctx->digestsize, &iproc_priv.bytes_in); <------>if (rctx->is_final && (rctx->total_sent == rctx->total_todo)) <------><------>ahash_req_done(rctx); } /** * spu_aead_rx_sg_create() - Build up the scatterlist of buffers used to receive * a SPU response message for an AEAD request. Includes buffers to catch SPU * message headers and the response data. * @mssg: mailbox message containing the receive sg * @rctx: crypto request context * @rx_frag_num: number of scatterlist elements required to hold the * SPU response message * @assoc_len: Length of associated data included in the crypto request * @ret_iv_len: Length of IV returned in response * @resp_len: Number of bytes of response data expected to be written to * dst buffer from crypto API * @digestsize: Length of hash digest, in bytes * @stat_pad_len: Number of bytes required to pad the STAT field to * a 4-byte boundary * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Returns: * 0 if successful * < 0 if an error */ static int spu_aead_rx_sg_create(struct brcm_message *mssg, <------><------><------><------> struct aead_request *req, <------><------><------><------> struct iproc_reqctx_s *rctx, <------><------><------><------> u8 rx_frag_num, <------><------><------><------> unsigned int assoc_len, <------><------><------><------> u32 ret_iv_len, unsigned int resp_len, <------><------><------><------> unsigned int digestsize, u32 stat_pad_len) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 datalen; /* Number of bytes of response data expected */ <------>u32 assoc_buf_len; <------>u8 data_padlen = 0; <------>if (ctx->is_rfc4543) { <------><------>/* RFC4543: only pad after data, not after AAD */ <------><------>data_padlen = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, <------><------><------><------><------><------><------> assoc_len + resp_len); <------><------>assoc_buf_len = assoc_len; <------>} else { <------><------>data_padlen = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, <------><------><------><------><------><------><------> resp_len); <------><------>assoc_buf_len = spu->spu_assoc_resp_len(ctx->cipher.mode, <------><------><------><------><------><------>assoc_len, ret_iv_len, <------><------><------><------><------><------>rctx->is_encrypt); <------>} <------>if (ctx->cipher.mode == CIPHER_MODE_CCM) <------><------>/* ICV (after data) must be in the next 32-bit word for CCM */ <------><------>data_padlen += spu->spu_wordalign_padlen(assoc_buf_len + <------><------><------><------><------><------><------> resp_len + <------><------><------><------><------><------><------> data_padlen); <------>if (data_padlen) <------><------>/* have to catch gcm pad in separate buffer */ <------><------>rx_frag_num++; <------>mssg->spu.dst = kcalloc(rx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (!mssg->spu.dst) <------><------>return -ENOMEM; <------>sg = mssg->spu.dst; <------>sg_init_table(sg, rx_frag_num); <------>/* Space for SPU message header */ <------>sg_set_buf(sg++, rctx->msg_buf.spu_resp_hdr, ctx->spu_resp_hdr_len); <------>if (assoc_buf_len) { <------><------>/* <------><------> * Don't write directly to req->dst, because SPU may pad the <------><------> * assoc data in the response <------><------> */ <------><------>memset(rctx->msg_buf.a.resp_aad, 0, assoc_buf_len); <------><------>sg_set_buf(sg++, rctx->msg_buf.a.resp_aad, assoc_buf_len); <------>} <------>if (resp_len) { <------><------>/* <------><------> * Copy in each dst sg entry from request, up to chunksize. <------><------> * dst sg catches just the data. digest caught in separate buf. <------><------> */ <------><------>datalen = spu_msg_sg_add(&sg, &rctx->dst_sg, &rctx->dst_skip, <------><------><------><------><------> rctx->dst_nents, resp_len); <------><------>if (datalen < (resp_len)) { <------><------><------>pr_err("%s(): failed to copy dst sg to mbox msg. expected len %u, datalen %u", <------><------><------> __func__, resp_len, datalen); <------><------><------>return -EFAULT; <------><------>} <------>} <------>/* If GCM/CCM data is padded, catch padding in separate buffer */ <------>if (data_padlen) { <------><------>memset(rctx->msg_buf.a.gcmpad, 0, data_padlen); <------><------>sg_set_buf(sg++, rctx->msg_buf.a.gcmpad, data_padlen); <------>} <------>/* Always catch ICV in separate buffer */ <------>sg_set_buf(sg++, rctx->msg_buf.digest, digestsize); <------>flow_log("stat_pad_len %u\n", stat_pad_len); <------>if (stat_pad_len) { <------><------>memset(rctx->msg_buf.rx_stat_pad, 0, stat_pad_len); <------><------>sg_set_buf(sg++, rctx->msg_buf.rx_stat_pad, stat_pad_len); <------>} <------>memset(rctx->msg_buf.rx_stat, 0, SPU_RX_STATUS_LEN); <------>sg_set_buf(sg, rctx->msg_buf.rx_stat, spu->spu_rx_status_len()); <------>return 0; } /** * spu_aead_tx_sg_create() - Build up the scatterlist of buffers used to send a * SPU request message for an AEAD request. Includes SPU message headers and the * request data. * @mssg: mailbox message containing the transmit sg * @rctx: crypto request context * @tx_frag_num: number of scatterlist elements required to construct the * SPU request message * @spu_hdr_len: length of SPU message header in bytes * @assoc: crypto API associated data scatterlist * @assoc_len: length of associated data * @assoc_nents: number of scatterlist entries containing assoc data * @aead_iv_len: length of AEAD IV, if included * @chunksize: Number of bytes of request data * @aad_pad_len: Number of bytes of padding at end of AAD. For GCM/CCM. * @pad_len: Number of pad bytes * @incl_icv: If true, write separate ICV buffer after data and * any padding * * The scatterlist that gets allocated here is freed in spu_chunk_cleanup() * when the request completes, whether the request is handled successfully or * there is an error. * * Return: * 0 if successful * < 0 if an error */ static int spu_aead_tx_sg_create(struct brcm_message *mssg, <------><------><------><------> struct iproc_reqctx_s *rctx, <------><------><------><------> u8 tx_frag_num, <------><------><------><------> u32 spu_hdr_len, <------><------><------><------> struct scatterlist *assoc, <------><------><------><------> unsigned int assoc_len, <------><------><------><------> int assoc_nents, <------><------><------><------> unsigned int aead_iv_len, <------><------><------><------> unsigned int chunksize, <------><------><------><------> u32 aad_pad_len, u32 pad_len, bool incl_icv) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct scatterlist *sg; /* used to build sgs in mbox message */ <------>struct scatterlist *assoc_sg = assoc; <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 datalen; /* Number of bytes of data to write */ <------>u32 written; /* Number of bytes of data written */ <------>u32 assoc_offset = 0; <------>u32 stat_len; <------>mssg->spu.src = kcalloc(tx_frag_num, sizeof(struct scatterlist), <------><------><------><------>rctx->gfp); <------>if (!mssg->spu.src) <------><------>return -ENOMEM; <------>sg = mssg->spu.src; <------>sg_init_table(sg, tx_frag_num); <------>sg_set_buf(sg++, rctx->msg_buf.bcm_spu_req_hdr, <------><------> BCM_HDR_LEN + spu_hdr_len); <------>if (assoc_len) { <------><------>/* Copy in each associated data sg entry from request */ <------><------>written = spu_msg_sg_add(&sg, &assoc_sg, &assoc_offset, <------><------><------><------><------> assoc_nents, assoc_len); <------><------>if (written < assoc_len) { <------><------><------>pr_err("%s(): failed to copy assoc sg to mbox msg", <------><------><------> __func__); <------><------><------>return -EFAULT; <------><------>} <------>} <------>if (aead_iv_len) <------><------>sg_set_buf(sg++, rctx->msg_buf.iv_ctr, aead_iv_len); <------>if (aad_pad_len) { <------><------>memset(rctx->msg_buf.a.req_aad_pad, 0, aad_pad_len); <------><------>sg_set_buf(sg++, rctx->msg_buf.a.req_aad_pad, aad_pad_len); <------>} <------>datalen = chunksize; <------>if ((chunksize > ctx->digestsize) && incl_icv) <------><------>datalen -= ctx->digestsize; <------>if (datalen) { <------><------>/* For aead, a single msg should consume the entire src sg */ <------><------>written = spu_msg_sg_add(&sg, &rctx->src_sg, &rctx->src_skip, <------><------><------><------><------> rctx->src_nents, datalen); <------><------>if (written < datalen) { <------><------><------>pr_err("%s(): failed to copy src sg to mbox msg", <------><------><------> __func__); <------><------><------>return -EFAULT; <------><------>} <------>} <------>if (pad_len) { <------><------>memset(rctx->msg_buf.spu_req_pad, 0, pad_len); <------><------>sg_set_buf(sg++, rctx->msg_buf.spu_req_pad, pad_len); <------>} <------>if (incl_icv) <------><------>sg_set_buf(sg++, rctx->msg_buf.digest, ctx->digestsize); <------>stat_len = spu->spu_tx_status_len(); <------>if (stat_len) { <------><------>memset(rctx->msg_buf.tx_stat, 0, stat_len); <------><------>sg_set_buf(sg, rctx->msg_buf.tx_stat, stat_len); <------>} <------>return 0; } /** * handle_aead_req() - Submit a SPU request message for the next chunk of the * current AEAD request. * @rctx: Crypto request context * * Unlike other operation types, we assume the length of the request fits in * a single SPU request message. aead_enqueue() makes sure this is true. * Comments for other op types regarding threads applies here as well. * * Unlike incremental hash ops, where the spu returns the entire hash for * truncated algs like sha-224, the SPU returns just the truncated hash in * response to aead requests. So digestsize is always ctx->digestsize here. * * Return: -EINPROGRESS: crypto request has been accepted and result will be * returned asynchronously * Any other value indicates an error */ static int handle_aead_req(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_async_request *areq = rctx->parent; <------>struct aead_request *req = container_of(areq, <------><------><------><------><------><------>struct aead_request, base); <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>int err; <------>unsigned int chunksize; <------>unsigned int resp_len; <------>u32 spu_hdr_len; <------>u32 db_size; <------>u32 stat_pad_len; <------>u32 pad_len; <------>struct brcm_message *mssg; /* mailbox message */ <------>struct spu_request_opts req_opts; <------>struct spu_cipher_parms cipher_parms; <------>struct spu_hash_parms hash_parms; <------>struct spu_aead_parms aead_parms; <------>int assoc_nents = 0; <------>bool incl_icv = false; <------>unsigned int digestsize = ctx->digestsize; <------>/* number of entries in src and dst sg. Always includes SPU msg header. <------> */ <------>u8 rx_frag_num = 2; /* and STATUS */ <------>u8 tx_frag_num = 1; <------>/* doing the whole thing at once */ <------>chunksize = rctx->total_todo; <------>flow_log("%s: chunksize %u\n", __func__, chunksize); <------>memset(&req_opts, 0, sizeof(req_opts)); <------>memset(&hash_parms, 0, sizeof(hash_parms)); <------>memset(&aead_parms, 0, sizeof(aead_parms)); <------>req_opts.is_inbound = !(rctx->is_encrypt); <------>req_opts.auth_first = ctx->auth_first; <------>req_opts.is_aead = true; <------>req_opts.is_esp = ctx->is_esp; <------>cipher_parms.alg = ctx->cipher.alg; <------>cipher_parms.mode = ctx->cipher.mode; <------>cipher_parms.type = ctx->cipher_type; <------>cipher_parms.key_buf = ctx->enckey; <------>cipher_parms.key_len = ctx->enckeylen; <------>cipher_parms.iv_buf = rctx->msg_buf.iv_ctr; <------>cipher_parms.iv_len = rctx->iv_ctr_len; <------>hash_parms.alg = ctx->auth.alg; <------>hash_parms.mode = ctx->auth.mode; <------>hash_parms.type = HASH_TYPE_NONE; <------>hash_parms.key_buf = (u8 *)ctx->authkey; <------>hash_parms.key_len = ctx->authkeylen; <------>hash_parms.digestsize = digestsize; <------>if ((ctx->auth.alg == HASH_ALG_SHA224) && <------> (ctx->authkeylen < SHA224_DIGEST_SIZE)) <------><------>hash_parms.key_len = SHA224_DIGEST_SIZE; <------>aead_parms.assoc_size = req->assoclen; <------>if (ctx->is_esp && !ctx->is_rfc4543) { <------><------>/* <------><------> * 8-byte IV is included assoc data in request. SPU2 <------><------> * expects AAD to include just SPI and seqno. So <------><------> * subtract off the IV len. <------><------> */ <------><------>aead_parms.assoc_size -= GCM_RFC4106_IV_SIZE; <------><------>if (rctx->is_encrypt) { <------><------><------>aead_parms.return_iv = true; <------><------><------>aead_parms.ret_iv_len = GCM_RFC4106_IV_SIZE; <------><------><------>aead_parms.ret_iv_off = GCM_ESP_SALT_SIZE; <------><------>} <------>} else { <------><------>aead_parms.ret_iv_len = 0; <------>} <------>/* <------> * Count number of sg entries from the crypto API request that are to <------> * be included in this mailbox message. For dst sg, don't count space <------> * for digest. Digest gets caught in a separate buffer and copied back <------> * to dst sg when processing response. <------> */ <------>rctx->src_nents = spu_sg_count(rctx->src_sg, rctx->src_skip, chunksize); <------>rctx->dst_nents = spu_sg_count(rctx->dst_sg, rctx->dst_skip, chunksize); <------>if (aead_parms.assoc_size) <------><------>assoc_nents = spu_sg_count(rctx->assoc, 0, <------><------><------><------><------> aead_parms.assoc_size); <------>mssg = &rctx->mb_mssg; <------>rctx->total_sent = chunksize; <------>rctx->src_sent = chunksize; <------>if (spu->spu_assoc_resp_len(ctx->cipher.mode, <------><------><------><------> aead_parms.assoc_size, <------><------><------><------> aead_parms.ret_iv_len, <------><------><------><------> rctx->is_encrypt)) <------><------>rx_frag_num++; <------>aead_parms.iv_len = spu->spu_aead_ivlen(ctx->cipher.mode, <------><------><------><------><------><------>rctx->iv_ctr_len); <------>if (ctx->auth.alg == HASH_ALG_AES) <------><------>hash_parms.type = (enum hash_type)ctx->cipher_type; <------>/* General case AAD padding (CCM and RFC4543 special cases below) */ <------>aead_parms.aad_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, <------><------><------><------><------><------> aead_parms.assoc_size); <------>/* General case data padding (CCM decrypt special case below) */ <------>aead_parms.data_pad_len = spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, <------><------><------><------><------><------><------> chunksize); <------>if (ctx->cipher.mode == CIPHER_MODE_CCM) { <------><------>/* <------><------> * for CCM, AAD len + 2 (rather than AAD len) needs to be <------><------> * 128-bit aligned <------><------> */ <------><------>aead_parms.aad_pad_len = spu->spu_gcm_ccm_pad_len( <------><------><------><------><------> ctx->cipher.mode, <------><------><------><------><------> aead_parms.assoc_size + 2); <------><------>/* <------><------> * And when decrypting CCM, need to pad without including <------><------> * size of ICV which is tacked on to end of chunk <------><------> */ <------><------>if (!rctx->is_encrypt) <------><------><------>aead_parms.data_pad_len = <------><------><------><------>spu->spu_gcm_ccm_pad_len(ctx->cipher.mode, <------><------><------><------><------><------><------>chunksize - digestsize); <------><------>/* CCM also requires software to rewrite portions of IV: */ <------><------>spu->spu_ccm_update_iv(digestsize, &cipher_parms, req->assoclen, <------><------><------><------> chunksize, rctx->is_encrypt, <------><------><------><------> ctx->is_esp); <------>} <------>if (ctx->is_rfc4543) { <------><------>/* <------><------> * RFC4543: data is included in AAD, so don't pad after AAD <------><------> * and pad data based on both AAD + data size <------><------> */ <------><------>aead_parms.aad_pad_len = 0; <------><------>if (!rctx->is_encrypt) <------><------><------>aead_parms.data_pad_len = spu->spu_gcm_ccm_pad_len( <------><------><------><------><------>ctx->cipher.mode, <------><------><------><------><------>aead_parms.assoc_size + chunksize - <------><------><------><------><------>digestsize); <------><------>else <------><------><------>aead_parms.data_pad_len = spu->spu_gcm_ccm_pad_len( <------><------><------><------><------>ctx->cipher.mode, <------><------><------><------><------>aead_parms.assoc_size + chunksize); <------><------>req_opts.is_rfc4543 = true; <------>} <------>if (spu_req_incl_icv(ctx->cipher.mode, rctx->is_encrypt)) { <------><------>incl_icv = true; <------><------>tx_frag_num++; <------><------>/* Copy ICV from end of src scatterlist to digest buf */ <------><------>sg_copy_part_to_buf(req->src, rctx->msg_buf.digest, digestsize, <------><------><------><------> req->assoclen + rctx->total_sent - <------><------><------><------> digestsize); <------>} <------>atomic64_add(chunksize, &iproc_priv.bytes_out); <------>flow_log("%s()-sent chunksize:%u\n", __func__, chunksize); <------>/* Prepend SPU header with type 3 BCM header */ <------>memcpy(rctx->msg_buf.bcm_spu_req_hdr, BCMHEADER, BCM_HDR_LEN); <------>spu_hdr_len = spu->spu_create_request(rctx->msg_buf.bcm_spu_req_hdr + <------><------><------><------><------> BCM_HDR_LEN, &req_opts, <------><------><------><------><------> &cipher_parms, &hash_parms, <------><------><------><------><------> &aead_parms, chunksize); <------>/* Determine total length of padding. Put all padding in one buffer. */ <------>db_size = spu_real_db_size(aead_parms.assoc_size, aead_parms.iv_len, 0, <------><------><------><------> chunksize, aead_parms.aad_pad_len, <------><------><------><------> aead_parms.data_pad_len, 0); <------>stat_pad_len = spu->spu_wordalign_padlen(db_size); <------>if (stat_pad_len) <------><------>rx_frag_num++; <------>pad_len = aead_parms.data_pad_len + stat_pad_len; <------>if (pad_len) { <------><------>tx_frag_num++; <------><------>spu->spu_request_pad(rctx->msg_buf.spu_req_pad, <------><------><------><------> aead_parms.data_pad_len, 0, <------><------><------><------> ctx->auth.alg, ctx->auth.mode, <------><------><------><------> rctx->total_sent, stat_pad_len); <------>} <------>spu->spu_dump_msg_hdr(rctx->msg_buf.bcm_spu_req_hdr + BCM_HDR_LEN, <------><------><------> spu_hdr_len); <------>dump_sg(rctx->assoc, 0, aead_parms.assoc_size); <------>packet_dump(" aead iv: ", rctx->msg_buf.iv_ctr, aead_parms.iv_len); <------>packet_log("BD:\n"); <------>dump_sg(rctx->src_sg, rctx->src_skip, chunksize); <------>packet_dump(" pad: ", rctx->msg_buf.spu_req_pad, pad_len); <------>/* <------> * Build mailbox message containing SPU request msg and rx buffers <------> * to catch response message <------> */ <------>memset(mssg, 0, sizeof(*mssg)); <------>mssg->type = BRCM_MESSAGE_SPU; <------>mssg->ctx = rctx; /* Will be returned in response */ <------>/* Create rx scatterlist to catch result */ <------>rx_frag_num += rctx->dst_nents; <------>resp_len = chunksize; <------>/* <------> * Always catch ICV in separate buffer. Have to for GCM/CCM because of <------> * padding. Have to for SHA-224 and other truncated SHAs because SPU <------> * sends entire digest back. <------> */ <------>rx_frag_num++; <------>if (((ctx->cipher.mode == CIPHER_MODE_GCM) || <------> (ctx->cipher.mode == CIPHER_MODE_CCM)) && !rctx->is_encrypt) { <------><------>/* <------><------> * Input is ciphertxt plus ICV, but ICV not incl <------><------> * in output. <------><------> */ <------><------>resp_len -= ctx->digestsize; <------><------>if (resp_len == 0) <------><------><------>/* no rx frags to catch output data */ <------><------><------>rx_frag_num -= rctx->dst_nents; <------>} <------>err = spu_aead_rx_sg_create(mssg, req, rctx, rx_frag_num, <------><------><------><------> aead_parms.assoc_size, <------><------><------><------> aead_parms.ret_iv_len, resp_len, digestsize, <------><------><------><------> stat_pad_len); <------>if (err) <------><------>return err; <------>/* Create tx scatterlist containing SPU request message */ <------>tx_frag_num += rctx->src_nents; <------>tx_frag_num += assoc_nents; <------>if (aead_parms.aad_pad_len) <------><------>tx_frag_num++; <------>if (aead_parms.iv_len) <------><------>tx_frag_num++; <------>if (spu->spu_tx_status_len()) <------><------>tx_frag_num++; <------>err = spu_aead_tx_sg_create(mssg, rctx, tx_frag_num, spu_hdr_len, <------><------><------><------> rctx->assoc, aead_parms.assoc_size, <------><------><------><------> assoc_nents, aead_parms.iv_len, chunksize, <------><------><------><------> aead_parms.aad_pad_len, pad_len, incl_icv); <------>if (err) <------><------>return err; <------>err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx); <------>if (unlikely(err < 0)) <------><------>return err; <------>return -EINPROGRESS; } /** * handle_aead_resp() - Process a SPU response message for an AEAD request. * @rctx: Crypto request context */ static void handle_aead_resp(struct iproc_reqctx_s *rctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_async_request *areq = rctx->parent; <------>struct aead_request *req = container_of(areq, <------><------><------><------><------><------>struct aead_request, base); <------>struct iproc_ctx_s *ctx = rctx->ctx; <------>u32 payload_len; <------>unsigned int icv_offset; <------>u32 result_len; <------>/* See how much data was returned */ <------>payload_len = spu->spu_payload_length(rctx->msg_buf.spu_resp_hdr); <------>flow_log("payload_len %u\n", payload_len); <------>/* only count payload */ <------>atomic64_add(payload_len, &iproc_priv.bytes_in); <------>if (req->assoclen) <------><------>packet_dump(" assoc_data ", rctx->msg_buf.a.resp_aad, <------><------><------> req->assoclen); <------>/* <------> * Copy the ICV back to the destination <------> * buffer. In decrypt case, SPU gives us back the digest, but crypto <------> * API doesn't expect ICV in dst buffer. <------> */ <------>result_len = req->cryptlen; <------>if (rctx->is_encrypt) { <------><------>icv_offset = req->assoclen + rctx->total_sent; <------><------>packet_dump(" ICV: ", rctx->msg_buf.digest, ctx->digestsize); <------><------>flow_log("copying ICV to dst sg at offset %u\n", icv_offset); <------><------>sg_copy_part_from_buf(req->dst, rctx->msg_buf.digest, <------><------><------><------> ctx->digestsize, icv_offset); <------><------>result_len += ctx->digestsize; <------>} <------>packet_log("response data: "); <------>dump_sg(req->dst, req->assoclen, result_len); <------>atomic_inc(&iproc_priv.op_counts[SPU_OP_AEAD]); <------>if (ctx->cipher.alg == CIPHER_ALG_AES) { <------><------>if (ctx->cipher.mode == CIPHER_MODE_CCM) <------><------><------>atomic_inc(&iproc_priv.aead_cnt[AES_CCM]); <------><------>else if (ctx->cipher.mode == CIPHER_MODE_GCM) <------><------><------>atomic_inc(&iproc_priv.aead_cnt[AES_GCM]); <------><------>else <------><------><------>atomic_inc(&iproc_priv.aead_cnt[AUTHENC]); <------>} else { <------><------>atomic_inc(&iproc_priv.aead_cnt[AUTHENC]); <------>} } /** * spu_chunk_cleanup() - Do cleanup after processing one chunk of a request * @rctx: request context * * Mailbox scatterlists are allocated for each chunk. So free them after * processing each chunk. */ static void spu_chunk_cleanup(struct iproc_reqctx_s *rctx) { <------>/* mailbox message used to tx request */ <------>struct brcm_message *mssg = &rctx->mb_mssg; <------>kfree(mssg->spu.src); <------>kfree(mssg->spu.dst); <------>memset(mssg, 0, sizeof(struct brcm_message)); } /** * finish_req() - Used to invoke the complete callback from the requester when * a request has been handled asynchronously. * @rctx: Request context * @err: Indicates whether the request was successful or not * * Ensures that cleanup has been done for request */ static void finish_req(struct iproc_reqctx_s *rctx, int err) { <------>struct crypto_async_request *areq = rctx->parent; <------>flow_log("%s() err:%d\n\n", __func__, err); <------>/* No harm done if already called */ <------>spu_chunk_cleanup(rctx); <------>if (areq) <------><------>areq->complete(areq, err); } /** * spu_rx_callback() - Callback from mailbox framework with a SPU response. * @cl: mailbox client structure for SPU driver * @msg: mailbox message containing SPU response */ static void spu_rx_callback(struct mbox_client *cl, void *msg) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct brcm_message *mssg = msg; <------>struct iproc_reqctx_s *rctx; <------>int err; <------>rctx = mssg->ctx; <------>if (unlikely(!rctx)) { <------><------>/* This is fatal */ <------><------>pr_err("%s(): no request context", __func__); <------><------>err = -EFAULT; <------><------>goto cb_finish; <------>} <------>/* process the SPU status */ <------>err = spu->spu_status_process(rctx->msg_buf.rx_stat); <------>if (err != 0) { <------><------>if (err == SPU_INVALID_ICV) <------><------><------>atomic_inc(&iproc_priv.bad_icv); <------><------>err = -EBADMSG; <------><------>goto cb_finish; <------>} <------>/* Process the SPU response message */ <------>switch (rctx->ctx->alg->type) { <------>case CRYPTO_ALG_TYPE_SKCIPHER: <------><------>handle_skcipher_resp(rctx); <------><------>break; <------>case CRYPTO_ALG_TYPE_AHASH: <------><------>handle_ahash_resp(rctx); <------><------>break; <------>case CRYPTO_ALG_TYPE_AEAD: <------><------>handle_aead_resp(rctx); <------><------>break; <------>default: <------><------>err = -EINVAL; <------><------>goto cb_finish; <------>} <------>/* <------> * If this response does not complete the request, then send the next <------> * request chunk. <------> */ <------>if (rctx->total_sent < rctx->total_todo) { <------><------>/* Deallocate anything specific to previous chunk */ <------><------>spu_chunk_cleanup(rctx); <------><------>switch (rctx->ctx->alg->type) { <------><------>case CRYPTO_ALG_TYPE_SKCIPHER: <------><------><------>err = handle_skcipher_req(rctx); <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AHASH: <------><------><------>err = handle_ahash_req(rctx); <------><------><------>if (err == -EAGAIN) <------><------><------><------>/* <------><------><------><------> * we saved data in hash carry, but tell crypto <------><------><------><------> * API we successfully completed request. <------><------><------><------> */ <------><------><------><------>err = 0; <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AEAD: <------><------><------>err = handle_aead_req(rctx); <------><------><------>break; <------><------>default: <------><------><------>err = -EINVAL; <------><------>} <------><------>if (err == -EINPROGRESS) <------><------><------>/* Successfully submitted request for next chunk */ <------><------><------>return; <------>} cb_finish: <------>finish_req(rctx, err); } /* ==================== Kernel Cryptographic API ==================== */ /** * skcipher_enqueue() - Handle skcipher encrypt or decrypt request. * @req: Crypto API request * @encrypt: true if encrypting; false if decrypting * * Return: -EINPROGRESS if request accepted and result will be returned * asynchronously * < 0 if an error */ static int skcipher_enqueue(struct skcipher_request *req, bool encrypt) { <------>struct iproc_reqctx_s *rctx = skcipher_request_ctx(req); <------>struct iproc_ctx_s *ctx = <------> crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); <------>int err; <------>flow_log("%s() enc:%u\n", __func__, encrypt); <------>rctx->gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------>rctx->parent = &req->base; <------>rctx->is_encrypt = encrypt; <------>rctx->bd_suppress = false; <------>rctx->total_todo = req->cryptlen; <------>rctx->src_sent = 0; <------>rctx->total_sent = 0; <------>rctx->total_received = 0; <------>rctx->ctx = ctx; <------>/* Initialize current position in src and dst scatterlists */ <------>rctx->src_sg = req->src; <------>rctx->src_nents = 0; <------>rctx->src_skip = 0; <------>rctx->dst_sg = req->dst; <------>rctx->dst_nents = 0; <------>rctx->dst_skip = 0; <------>if (ctx->cipher.mode == CIPHER_MODE_CBC || <------> ctx->cipher.mode == CIPHER_MODE_CTR || <------> ctx->cipher.mode == CIPHER_MODE_OFB || <------> ctx->cipher.mode == CIPHER_MODE_XTS || <------> ctx->cipher.mode == CIPHER_MODE_GCM || <------> ctx->cipher.mode == CIPHER_MODE_CCM) { <------><------>rctx->iv_ctr_len = <------><------> crypto_skcipher_ivsize(crypto_skcipher_reqtfm(req)); <------><------>memcpy(rctx->msg_buf.iv_ctr, req->iv, rctx->iv_ctr_len); <------>} else { <------><------>rctx->iv_ctr_len = 0; <------>} <------>/* Choose a SPU to process this request */ <------>rctx->chan_idx = select_channel(); <------>err = handle_skcipher_req(rctx); <------>if (err != -EINPROGRESS) <------><------>/* synchronous result */ <------><------>spu_chunk_cleanup(rctx); <------>return err; } static int des_setkey(struct crypto_skcipher *cipher, const u8 *key, <------><------> unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher); <------>int err; <------>err = verify_skcipher_des_key(cipher, key); <------>if (err) <------><------>return err; <------>ctx->cipher_type = CIPHER_TYPE_DES; <------>return 0; } static int threedes_setkey(struct crypto_skcipher *cipher, const u8 *key, <------><------><------> unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher); <------>int err; <------>err = verify_skcipher_des3_key(cipher, key); <------>if (err) <------><------>return err; <------>ctx->cipher_type = CIPHER_TYPE_3DES; <------>return 0; } static int aes_setkey(struct crypto_skcipher *cipher, const u8 *key, <------><------> unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher); <------>if (ctx->cipher.mode == CIPHER_MODE_XTS) <------><------>/* XTS includes two keys of equal length */ <------><------>keylen = keylen / 2; <------>switch (keylen) { <------>case AES_KEYSIZE_128: <------><------>ctx->cipher_type = CIPHER_TYPE_AES128; <------><------>break; <------>case AES_KEYSIZE_192: <------><------>ctx->cipher_type = CIPHER_TYPE_AES192; <------><------>break; <------>case AES_KEYSIZE_256: <------><------>ctx->cipher_type = CIPHER_TYPE_AES256; <------><------>break; <------>default: <------><------>return -EINVAL; <------>} <------>WARN_ON((ctx->max_payload != SPU_MAX_PAYLOAD_INF) && <------><------>((ctx->max_payload % AES_BLOCK_SIZE) != 0)); <------>return 0; } static int skcipher_setkey(struct crypto_skcipher *cipher, const u8 *key, <------><------><------> unsigned int keylen) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct iproc_ctx_s *ctx = crypto_skcipher_ctx(cipher); <------>struct spu_cipher_parms cipher_parms; <------>u32 alloc_len = 0; <------>int err; <------>flow_log("skcipher_setkey() keylen: %d\n", keylen); <------>flow_dump(" key: ", key, keylen); <------>switch (ctx->cipher.alg) { <------>case CIPHER_ALG_DES: <------><------>err = des_setkey(cipher, key, keylen); <------><------>break; <------>case CIPHER_ALG_3DES: <------><------>err = threedes_setkey(cipher, key, keylen); <------><------>break; <------>case CIPHER_ALG_AES: <------><------>err = aes_setkey(cipher, key, keylen); <------><------>break; <------>default: <------><------>pr_err("%s() Error: unknown cipher alg\n", __func__); <------><------>err = -EINVAL; <------>} <------>if (err) <------><------>return err; <------>memcpy(ctx->enckey, key, keylen); <------>ctx->enckeylen = keylen; <------>/* SPU needs XTS keys in the reverse order the crypto API presents */ <------>if ((ctx->cipher.alg == CIPHER_ALG_AES) && <------> (ctx->cipher.mode == CIPHER_MODE_XTS)) { <------><------>unsigned int xts_keylen = keylen / 2; <------><------>memcpy(ctx->enckey, key + xts_keylen, xts_keylen); <------><------>memcpy(ctx->enckey + xts_keylen, key, xts_keylen); <------>} <------>if (spu->spu_type == SPU_TYPE_SPUM) <------><------>alloc_len = BCM_HDR_LEN + SPU_HEADER_ALLOC_LEN; <------>else if (spu->spu_type == SPU_TYPE_SPU2) <------><------>alloc_len = BCM_HDR_LEN + SPU2_HEADER_ALLOC_LEN; <------>memset(ctx->bcm_spu_req_hdr, 0, alloc_len); <------>cipher_parms.iv_buf = NULL; <------>cipher_parms.iv_len = crypto_skcipher_ivsize(cipher); <------>flow_log("%s: iv_len %u\n", __func__, cipher_parms.iv_len); <------>cipher_parms.alg = ctx->cipher.alg; <------>cipher_parms.mode = ctx->cipher.mode; <------>cipher_parms.type = ctx->cipher_type; <------>cipher_parms.key_buf = ctx->enckey; <------>cipher_parms.key_len = ctx->enckeylen; <------>/* Prepend SPU request message with BCM header */ <------>memcpy(ctx->bcm_spu_req_hdr, BCMHEADER, BCM_HDR_LEN); <------>ctx->spu_req_hdr_len = <------> spu->spu_cipher_req_init(ctx->bcm_spu_req_hdr + BCM_HDR_LEN, <------><------><------><------> &cipher_parms); <------>ctx->spu_resp_hdr_len = spu->spu_response_hdr_len(ctx->authkeylen, <------><------><------><------><------><------><------> ctx->enckeylen, <------><------><------><------><------><------><------> false); <------>atomic_inc(&iproc_priv.setkey_cnt[SPU_OP_CIPHER]); <------>return 0; } static int skcipher_encrypt(struct skcipher_request *req) { <------>flow_log("skcipher_encrypt() nbytes:%u\n", req->cryptlen); <------>return skcipher_enqueue(req, true); } static int skcipher_decrypt(struct skcipher_request *req) { <------>flow_log("skcipher_decrypt() nbytes:%u\n", req->cryptlen); <------>return skcipher_enqueue(req, false); } static int ahash_enqueue(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>int err; <------>const char *alg_name; <------>flow_log("ahash_enqueue() nbytes:%u\n", req->nbytes); <------>rctx->gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------>rctx->parent = &req->base; <------>rctx->ctx = ctx; <------>rctx->bd_suppress = true; <------>memset(&rctx->mb_mssg, 0, sizeof(struct brcm_message)); <------>/* Initialize position in src scatterlist */ <------>rctx->src_sg = req->src; <------>rctx->src_skip = 0; <------>rctx->src_nents = 0; <------>rctx->dst_sg = NULL; <------>rctx->dst_skip = 0; <------>rctx->dst_nents = 0; <------>/* SPU2 hardware does not compute hash of zero length data */ <------>if ((rctx->is_final == 1) && (rctx->total_todo == 0) && <------> (iproc_priv.spu.spu_type == SPU_TYPE_SPU2)) { <------><------>alg_name = crypto_tfm_alg_name(crypto_ahash_tfm(tfm)); <------><------>flow_log("Doing %sfinal %s zero-len hash request in software\n", <------><------><------> rctx->is_final ? "" : "non-", alg_name); <------><------>err = do_shash((unsigned char *)alg_name, req->result, <------><------><------> NULL, 0, NULL, 0, ctx->authkey, <------><------><------> ctx->authkeylen); <------><------>if (err < 0) <------><------><------>flow_log("Hash request failed with error %d\n", err); <------><------>return err; <------>} <------>/* Choose a SPU to process this request */ <------>rctx->chan_idx = select_channel(); <------>err = handle_ahash_req(rctx); <------>if (err != -EINPROGRESS) <------><------>/* synchronous result */ <------><------>spu_chunk_cleanup(rctx); <------>if (err == -EAGAIN) <------><------>/* <------><------> * we saved data in hash carry, but tell crypto API <------><------> * we successfully completed request. <------><------> */ <------><------>err = 0; <------>return err; } static int __ahash_init(struct ahash_request *req) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>flow_log("%s()\n", __func__); <------>/* Initialize the context */ <------>rctx->hash_carry_len = 0; <------>rctx->is_final = 0; <------>rctx->total_todo = 0; <------>rctx->src_sent = 0; <------>rctx->total_sent = 0; <------>rctx->total_received = 0; <------>ctx->digestsize = crypto_ahash_digestsize(tfm); <------>/* If we add a hash whose digest is larger, catch it here. */ <------>WARN_ON(ctx->digestsize > MAX_DIGEST_SIZE); <------>rctx->is_sw_hmac = false; <------>ctx->spu_resp_hdr_len = spu->spu_response_hdr_len(ctx->authkeylen, 0, <------><------><------><------><------><------><------> true); <------>return 0; } /** * spu_no_incr_hash() - Determine whether incremental hashing is supported. * @ctx: Crypto session context * * SPU-2 does not support incremental hashing (we'll have to revisit and * condition based on chip revision or device tree entry if future versions do * support incremental hash) * * SPU-M also doesn't support incremental hashing of AES-XCBC * * Return: true if incremental hashing is not supported * false otherwise */ static bool spu_no_incr_hash(struct iproc_ctx_s *ctx) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>if (spu->spu_type == SPU_TYPE_SPU2) <------><------>return true; <------>if ((ctx->auth.alg == HASH_ALG_AES) && <------> (ctx->auth.mode == HASH_MODE_XCBC)) <------><------>return true; <------>/* Otherwise, incremental hashing is supported */ <------>return false; } static int ahash_init(struct ahash_request *req) { <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>const char *alg_name; <------>struct crypto_shash *hash; <------>int ret; <------>gfp_t gfp; <------>if (spu_no_incr_hash(ctx)) { <------><------>/* <------><------> * If we get an incremental hashing request and it's not <------><------> * supported by the hardware, we need to handle it in software <------><------> * by calling synchronous hash functions. <------><------> */ <------><------>alg_name = crypto_tfm_alg_name(crypto_ahash_tfm(tfm)); <------><------>hash = crypto_alloc_shash(alg_name, 0, 0); <------><------>if (IS_ERR(hash)) { <------><------><------>ret = PTR_ERR(hash); <------><------><------>goto err; <------><------>} <------><------>gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------><------>ctx->shash = kmalloc(sizeof(*ctx->shash) + <------><------><------><------> crypto_shash_descsize(hash), gfp); <------><------>if (!ctx->shash) { <------><------><------>ret = -ENOMEM; <------><------><------>goto err_hash; <------><------>} <------><------>ctx->shash->tfm = hash; <------><------>/* Set the key using data we already have from setkey */ <------><------>if (ctx->authkeylen > 0) { <------><------><------>ret = crypto_shash_setkey(hash, ctx->authkey, <------><------><------><------><------><------> ctx->authkeylen); <------><------><------>if (ret) <------><------><------><------>goto err_shash; <------><------>} <------><------>/* Initialize hash w/ this key and other params */ <------><------>ret = crypto_shash_init(ctx->shash); <------><------>if (ret) <------><------><------>goto err_shash; <------>} else { <------><------>/* Otherwise call the internal function which uses SPU hw */ <------><------>ret = __ahash_init(req); <------>} <------>return ret; err_shash: <------>kfree(ctx->shash); err_hash: <------>crypto_free_shash(hash); err: <------>return ret; } static int __ahash_update(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>flow_log("ahash_update() nbytes:%u\n", req->nbytes); <------>if (!req->nbytes) <------><------>return 0; <------>rctx->total_todo += req->nbytes; <------>rctx->src_sent = 0; <------>return ahash_enqueue(req); } static int ahash_update(struct ahash_request *req) { <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>u8 *tmpbuf; <------>int ret; <------>int nents; <------>gfp_t gfp; <------>if (spu_no_incr_hash(ctx)) { <------><------>/* <------><------> * If we get an incremental hashing request and it's not <------><------> * supported by the hardware, we need to handle it in software <------><------> * by calling synchronous hash functions. <------><------> */ <------><------>if (req->src) <------><------><------>nents = sg_nents(req->src); <------><------>else <------><------><------>return -EINVAL; <------><------>/* Copy data from req scatterlist to tmp buffer */ <------><------>gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------><------>tmpbuf = kmalloc(req->nbytes, gfp); <------><------>if (!tmpbuf) <------><------><------>return -ENOMEM; <------><------>if (sg_copy_to_buffer(req->src, nents, tmpbuf, req->nbytes) != <------><------><------><------>req->nbytes) { <------><------><------>kfree(tmpbuf); <------><------><------>return -EINVAL; <------><------>} <------><------>/* Call synchronous update */ <------><------>ret = crypto_shash_update(ctx->shash, tmpbuf, req->nbytes); <------><------>kfree(tmpbuf); <------>} else { <------><------>/* Otherwise call the internal function which uses SPU hw */ <------><------>ret = __ahash_update(req); <------>} <------>return ret; } static int __ahash_final(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>flow_log("ahash_final() nbytes:%u\n", req->nbytes); <------>rctx->is_final = 1; <------>return ahash_enqueue(req); } static int ahash_final(struct ahash_request *req) { <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>int ret; <------>if (spu_no_incr_hash(ctx)) { <------><------>/* <------><------> * If we get an incremental hashing request and it's not <------><------> * supported by the hardware, we need to handle it in software <------><------> * by calling synchronous hash functions. <------><------> */ <------><------>ret = crypto_shash_final(ctx->shash, req->result); <------><------>/* Done with hash, can deallocate it now */ <------><------>crypto_free_shash(ctx->shash->tfm); <------><------>kfree(ctx->shash); <------>} else { <------><------>/* Otherwise call the internal function which uses SPU hw */ <------><------>ret = __ahash_final(req); <------>} <------>return ret; } static int __ahash_finup(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>flow_log("ahash_finup() nbytes:%u\n", req->nbytes); <------>rctx->total_todo += req->nbytes; <------>rctx->src_sent = 0; <------>rctx->is_final = 1; <------>return ahash_enqueue(req); } static int ahash_finup(struct ahash_request *req) { <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>u8 *tmpbuf; <------>int ret; <------>int nents; <------>gfp_t gfp; <------>if (spu_no_incr_hash(ctx)) { <------><------>/* <------><------> * If we get an incremental hashing request and it's not <------><------> * supported by the hardware, we need to handle it in software <------><------> * by calling synchronous hash functions. <------><------> */ <------><------>if (req->src) { <------><------><------>nents = sg_nents(req->src); <------><------>} else { <------><------><------>ret = -EINVAL; <------><------><------>goto ahash_finup_exit; <------><------>} <------><------>/* Copy data from req scatterlist to tmp buffer */ <------><------>gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------><------>tmpbuf = kmalloc(req->nbytes, gfp); <------><------>if (!tmpbuf) { <------><------><------>ret = -ENOMEM; <------><------><------>goto ahash_finup_exit; <------><------>} <------><------>if (sg_copy_to_buffer(req->src, nents, tmpbuf, req->nbytes) != <------><------><------><------>req->nbytes) { <------><------><------>ret = -EINVAL; <------><------><------>goto ahash_finup_free; <------><------>} <------><------>/* Call synchronous update */ <------><------>ret = crypto_shash_finup(ctx->shash, tmpbuf, req->nbytes, <------><------><------><------><------> req->result); <------>} else { <------><------>/* Otherwise call the internal function which uses SPU hw */ <------><------>return __ahash_finup(req); <------>} ahash_finup_free: <------>kfree(tmpbuf); ahash_finup_exit: <------>/* Done with hash, can deallocate it now */ <------>crypto_free_shash(ctx->shash->tfm); <------>kfree(ctx->shash); <------>return ret; } static int ahash_digest(struct ahash_request *req) { <------>int err; <------>flow_log("ahash_digest() nbytes:%u\n", req->nbytes); <------>/* whole thing at once */ <------>err = __ahash_init(req); <------>if (!err) <------><------>err = __ahash_finup(req); <------>return err; } static int ahash_setkey(struct crypto_ahash *ahash, const u8 *key, <------><------><------>unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(ahash); <------>flow_log("%s() ahash:%p key:%p keylen:%u\n", <------><------> __func__, ahash, key, keylen); <------>flow_dump(" key: ", key, keylen); <------>if (ctx->auth.alg == HASH_ALG_AES) { <------><------>switch (keylen) { <------><------>case AES_KEYSIZE_128: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES128; <------><------><------>break; <------><------>case AES_KEYSIZE_192: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES192; <------><------><------>break; <------><------>case AES_KEYSIZE_256: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES256; <------><------><------>break; <------><------>default: <------><------><------>pr_err("%s() Error: Invalid key length\n", __func__); <------><------><------>return -EINVAL; <------><------>} <------>} else { <------><------>pr_err("%s() Error: unknown hash alg\n", __func__); <------><------>return -EINVAL; <------>} <------>memcpy(ctx->authkey, key, keylen); <------>ctx->authkeylen = keylen; <------>return 0; } static int ahash_export(struct ahash_request *req, void *out) { <------>const struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct spu_hash_export_s *spu_exp = (struct spu_hash_export_s *)out; <------>spu_exp->total_todo = rctx->total_todo; <------>spu_exp->total_sent = rctx->total_sent; <------>spu_exp->is_sw_hmac = rctx->is_sw_hmac; <------>memcpy(spu_exp->hash_carry, rctx->hash_carry, sizeof(rctx->hash_carry)); <------>spu_exp->hash_carry_len = rctx->hash_carry_len; <------>memcpy(spu_exp->incr_hash, rctx->incr_hash, sizeof(rctx->incr_hash)); <------>return 0; } static int ahash_import(struct ahash_request *req, const void *in) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct spu_hash_export_s *spu_exp = (struct spu_hash_export_s *)in; <------>rctx->total_todo = spu_exp->total_todo; <------>rctx->total_sent = spu_exp->total_sent; <------>rctx->is_sw_hmac = spu_exp->is_sw_hmac; <------>memcpy(rctx->hash_carry, spu_exp->hash_carry, sizeof(rctx->hash_carry)); <------>rctx->hash_carry_len = spu_exp->hash_carry_len; <------>memcpy(rctx->incr_hash, spu_exp->incr_hash, sizeof(rctx->incr_hash)); <------>return 0; } static int ahash_hmac_setkey(struct crypto_ahash *ahash, const u8 *key, <------><------><------> unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(ahash); <------>unsigned int blocksize = <------><------>crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash)); <------>unsigned int digestsize = crypto_ahash_digestsize(ahash); <------>unsigned int index; <------>int rc; <------>flow_log("%s() ahash:%p key:%p keylen:%u blksz:%u digestsz:%u\n", <------><------> __func__, ahash, key, keylen, blocksize, digestsize); <------>flow_dump(" key: ", key, keylen); <------>if (keylen > blocksize) { <------><------>switch (ctx->auth.alg) { <------><------>case HASH_ALG_MD5: <------><------><------>rc = do_shash("md5", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA1: <------><------><------>rc = do_shash("sha1", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA224: <------><------><------>rc = do_shash("sha224", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA256: <------><------><------>rc = do_shash("sha256", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA384: <------><------><------>rc = do_shash("sha384", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA512: <------><------><------>rc = do_shash("sha512", ctx->authkey, key, keylen, NULL, <------><------><------><------> 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA3_224: <------><------><------>rc = do_shash("sha3-224", ctx->authkey, key, keylen, <------><------><------><------> NULL, 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA3_256: <------><------><------>rc = do_shash("sha3-256", ctx->authkey, key, keylen, <------><------><------><------> NULL, 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA3_384: <------><------><------>rc = do_shash("sha3-384", ctx->authkey, key, keylen, <------><------><------><------> NULL, 0, NULL, 0); <------><------><------>break; <------><------>case HASH_ALG_SHA3_512: <------><------><------>rc = do_shash("sha3-512", ctx->authkey, key, keylen, <------><------><------><------> NULL, 0, NULL, 0); <------><------><------>break; <------><------>default: <------><------><------>pr_err("%s() Error: unknown hash alg\n", __func__); <------><------><------>return -EINVAL; <------><------>} <------><------>if (rc < 0) { <------><------><------>pr_err("%s() Error %d computing shash for %s\n", <------><------><------> __func__, rc, hash_alg_name[ctx->auth.alg]); <------><------><------>return rc; <------><------>} <------><------>ctx->authkeylen = digestsize; <------><------>flow_log(" keylen > digestsize... hashed\n"); <------><------>flow_dump(" newkey: ", ctx->authkey, ctx->authkeylen); <------>} else { <------><------>memcpy(ctx->authkey, key, keylen); <------><------>ctx->authkeylen = keylen; <------>} <------>/* <------> * Full HMAC operation in SPUM is not verified, <------> * So keeping the generation of IPAD, OPAD and <------> * outer hashing in software. <------> */ <------>if (iproc_priv.spu.spu_type == SPU_TYPE_SPUM) { <------><------>memcpy(ctx->ipad, ctx->authkey, ctx->authkeylen); <------><------>memset(ctx->ipad + ctx->authkeylen, 0, <------><------> blocksize - ctx->authkeylen); <------><------>ctx->authkeylen = 0; <------><------>memcpy(ctx->opad, ctx->ipad, blocksize); <------><------>for (index = 0; index < blocksize; index++) { <------><------><------>ctx->ipad[index] ^= HMAC_IPAD_VALUE; <------><------><------>ctx->opad[index] ^= HMAC_OPAD_VALUE; <------><------>} <------><------>flow_dump(" ipad: ", ctx->ipad, blocksize); <------><------>flow_dump(" opad: ", ctx->opad, blocksize); <------>} <------>ctx->digestsize = digestsize; <------>atomic_inc(&iproc_priv.setkey_cnt[SPU_OP_HMAC]); <------>return 0; } static int ahash_hmac_init(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>unsigned int blocksize = <------><------><------>crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); <------>flow_log("ahash_hmac_init()\n"); <------>/* init the context as a hash */ <------>ahash_init(req); <------>if (!spu_no_incr_hash(ctx)) { <------><------>/* SPU-M can do incr hashing but needs sw for outer HMAC */ <------><------>rctx->is_sw_hmac = true; <------><------>ctx->auth.mode = HASH_MODE_HASH; <------><------>/* start with a prepended ipad */ <------><------>memcpy(rctx->hash_carry, ctx->ipad, blocksize); <------><------>rctx->hash_carry_len = blocksize; <------><------>rctx->total_todo += blocksize; <------>} <------>return 0; } static int ahash_hmac_update(struct ahash_request *req) { <------>flow_log("ahash_hmac_update() nbytes:%u\n", req->nbytes); <------>if (!req->nbytes) <------><------>return 0; <------>return ahash_update(req); } static int ahash_hmac_final(struct ahash_request *req) { <------>flow_log("ahash_hmac_final() nbytes:%u\n", req->nbytes); <------>return ahash_final(req); } static int ahash_hmac_finup(struct ahash_request *req) { <------>flow_log("ahash_hmac_finupl() nbytes:%u\n", req->nbytes); <------>return ahash_finup(req); } static int ahash_hmac_digest(struct ahash_request *req) { <------>struct iproc_reqctx_s *rctx = ahash_request_ctx(req); <------>struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_ahash_ctx(tfm); <------>unsigned int blocksize = <------><------><------>crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); <------>flow_log("ahash_hmac_digest() nbytes:%u\n", req->nbytes); <------>/* Perform initialization and then call finup */ <------>__ahash_init(req); <------>if (iproc_priv.spu.spu_type == SPU_TYPE_SPU2) { <------><------>/* <------><------> * SPU2 supports full HMAC implementation in the <------><------> * hardware, need not to generate IPAD, OPAD and <------><------> * outer hash in software. <------><------> * Only for hash key len > hash block size, SPU2 <------><------> * expects to perform hashing on the key, shorten <------><------> * it to digest size and feed it as hash key. <------><------> */ <------><------>rctx->is_sw_hmac = false; <------><------>ctx->auth.mode = HASH_MODE_HMAC; <------>} else { <------><------>rctx->is_sw_hmac = true; <------><------>ctx->auth.mode = HASH_MODE_HASH; <------><------>/* start with a prepended ipad */ <------><------>memcpy(rctx->hash_carry, ctx->ipad, blocksize); <------><------>rctx->hash_carry_len = blocksize; <------><------>rctx->total_todo += blocksize; <------>} <------>return __ahash_finup(req); } /* aead helpers */ static int aead_need_fallback(struct aead_request *req) { <------>struct iproc_reqctx_s *rctx = aead_request_ctx(req); <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct crypto_aead *aead = crypto_aead_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(aead); <------>u32 payload_len; <------>/* <------> * SPU hardware cannot handle the AES-GCM/CCM case where plaintext <------> * and AAD are both 0 bytes long. So use fallback in this case. <------> */ <------>if (((ctx->cipher.mode == CIPHER_MODE_GCM) || <------> (ctx->cipher.mode == CIPHER_MODE_CCM)) && <------> (req->assoclen == 0)) { <------><------>if ((rctx->is_encrypt && (req->cryptlen == 0)) || <------><------> (!rctx->is_encrypt && (req->cryptlen == ctx->digestsize))) { <------><------><------>flow_log("AES GCM/CCM needs fallback for 0 len req\n"); <------><------><------>return 1; <------><------>} <------>} <------>/* SPU-M hardware only supports CCM digest size of 8, 12, or 16 bytes */ <------>if ((ctx->cipher.mode == CIPHER_MODE_CCM) && <------> (spu->spu_type == SPU_TYPE_SPUM) && <------> (ctx->digestsize != 8) && (ctx->digestsize != 12) && <------> (ctx->digestsize != 16)) { <------><------>flow_log("%s() AES CCM needs fallback for digest size %d\n", <------><------><------> __func__, ctx->digestsize); <------><------>return 1; <------>} <------>/* <------> * SPU-M on NSP has an issue where AES-CCM hash is not correct <------> * when AAD size is 0 <------> */ <------>if ((ctx->cipher.mode == CIPHER_MODE_CCM) && <------> (spu->spu_subtype == SPU_SUBTYPE_SPUM_NSP) && <------> (req->assoclen == 0)) { <------><------>flow_log("%s() AES_CCM needs fallback for 0 len AAD on NSP\n", <------><------><------> __func__); <------><------>return 1; <------>} <------>/* <------> * RFC4106 and RFC4543 cannot handle the case where AAD is other than <------> * 16 or 20 bytes long. So use fallback in this case. <------> */ <------>if (ctx->cipher.mode == CIPHER_MODE_GCM && <------> ctx->cipher.alg == CIPHER_ALG_AES && <------> rctx->iv_ctr_len == GCM_RFC4106_IV_SIZE && <------> req->assoclen != 16 && req->assoclen != 20) { <------><------>flow_log("RFC4106/RFC4543 needs fallback for assoclen" <------><------><------> " other than 16 or 20 bytes\n"); <------><------>return 1; <------>} <------>payload_len = req->cryptlen; <------>if (spu->spu_type == SPU_TYPE_SPUM) <------><------>payload_len += req->assoclen; <------>flow_log("%s() payload len: %u\n", __func__, payload_len); <------>if (ctx->max_payload == SPU_MAX_PAYLOAD_INF) <------><------>return 0; <------>else <------><------>return payload_len > ctx->max_payload; } static void aead_complete(struct crypto_async_request *areq, int err) { <------>struct aead_request *req = <------> container_of(areq, struct aead_request, base); <------>struct iproc_reqctx_s *rctx = aead_request_ctx(req); <------>struct crypto_aead *aead = crypto_aead_reqtfm(req); <------>flow_log("%s() err:%d\n", __func__, err); <------>areq->tfm = crypto_aead_tfm(aead); <------>areq->complete = rctx->old_complete; <------>areq->data = rctx->old_data; <------>areq->complete(areq, err); } static int aead_do_fallback(struct aead_request *req, bool is_encrypt) { <------>struct crypto_aead *aead = crypto_aead_reqtfm(req); <------>struct crypto_tfm *tfm = crypto_aead_tfm(aead); <------>struct iproc_reqctx_s *rctx = aead_request_ctx(req); <------>struct iproc_ctx_s *ctx = crypto_tfm_ctx(tfm); <------>int err; <------>u32 req_flags; <------>flow_log("%s() enc:%u\n", __func__, is_encrypt); <------>if (ctx->fallback_cipher) { <------><------>/* Store the cipher tfm and then use the fallback tfm */ <------><------>rctx->old_tfm = tfm; <------><------>aead_request_set_tfm(req, ctx->fallback_cipher); <------><------>/* <------><------> * Save the callback and chain ourselves in, so we can restore <------><------> * the tfm <------><------> */ <------><------>rctx->old_complete = req->base.complete; <------><------>rctx->old_data = req->base.data; <------><------>req_flags = aead_request_flags(req); <------><------>aead_request_set_callback(req, req_flags, aead_complete, req); <------><------>err = is_encrypt ? crypto_aead_encrypt(req) : <------><------> crypto_aead_decrypt(req); <------><------>if (err == 0) { <------><------><------>/* <------><------><------> * fallback was synchronous (did not return <------><------><------> * -EINPROGRESS). So restore request state here. <------><------><------> */ <------><------><------>aead_request_set_callback(req, req_flags, <------><------><------><------><------><------> rctx->old_complete, req); <------><------><------>req->base.data = rctx->old_data; <------><------><------>aead_request_set_tfm(req, aead); <------><------><------>flow_log("%s() fallback completed successfully\n\n", <------><------><------><------> __func__); <------><------>} <------>} else { <------><------>err = -EINVAL; <------>} <------>return err; } static int aead_enqueue(struct aead_request *req, bool is_encrypt) { <------>struct iproc_reqctx_s *rctx = aead_request_ctx(req); <------>struct crypto_aead *aead = crypto_aead_reqtfm(req); <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(aead); <------>int err; <------>flow_log("%s() enc:%u\n", __func__, is_encrypt); <------>if (req->assoclen > MAX_ASSOC_SIZE) { <------><------>pr_err <------><------> ("%s() Error: associated data too long. (%u > %u bytes)\n", <------><------> __func__, req->assoclen, MAX_ASSOC_SIZE); <------><------>return -EINVAL; <------>} <------>rctx->gfp = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG | <------><------> CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC; <------>rctx->parent = &req->base; <------>rctx->is_encrypt = is_encrypt; <------>rctx->bd_suppress = false; <------>rctx->total_todo = req->cryptlen; <------>rctx->src_sent = 0; <------>rctx->total_sent = 0; <------>rctx->total_received = 0; <------>rctx->is_sw_hmac = false; <------>rctx->ctx = ctx; <------>memset(&rctx->mb_mssg, 0, sizeof(struct brcm_message)); <------>/* assoc data is at start of src sg */ <------>rctx->assoc = req->src; <------>/* <------> * Init current position in src scatterlist to be after assoc data. <------> * src_skip set to buffer offset where data begins. (Assoc data could <------> * end in the middle of a buffer.) <------> */ <------>if (spu_sg_at_offset(req->src, req->assoclen, &rctx->src_sg, <------><------><------> &rctx->src_skip) < 0) { <------><------>pr_err("%s() Error: Unable to find start of src data\n", <------><------> __func__); <------><------>return -EINVAL; <------>} <------>rctx->src_nents = 0; <------>rctx->dst_nents = 0; <------>if (req->dst == req->src) { <------><------>rctx->dst_sg = rctx->src_sg; <------><------>rctx->dst_skip = rctx->src_skip; <------>} else { <------><------>/* <------><------> * Expect req->dst to have room for assoc data followed by <------><------> * output data and ICV, if encrypt. So initialize dst_sg <------><------> * to point beyond assoc len offset. <------><------> */ <------><------>if (spu_sg_at_offset(req->dst, req->assoclen, &rctx->dst_sg, <------><------><------><------> &rctx->dst_skip) < 0) { <------><------><------>pr_err("%s() Error: Unable to find start of dst data\n", <------><------><------> __func__); <------><------><------>return -EINVAL; <------><------>} <------>} <------>if (ctx->cipher.mode == CIPHER_MODE_CBC || <------> ctx->cipher.mode == CIPHER_MODE_CTR || <------> ctx->cipher.mode == CIPHER_MODE_OFB || <------> ctx->cipher.mode == CIPHER_MODE_XTS || <------> ctx->cipher.mode == CIPHER_MODE_GCM) { <------><------>rctx->iv_ctr_len = <------><------><------>ctx->salt_len + <------><------><------>crypto_aead_ivsize(crypto_aead_reqtfm(req)); <------>} else if (ctx->cipher.mode == CIPHER_MODE_CCM) { <------><------>rctx->iv_ctr_len = CCM_AES_IV_SIZE; <------>} else { <------><------>rctx->iv_ctr_len = 0; <------>} <------>rctx->hash_carry_len = 0; <------>flow_log(" src sg: %p\n", req->src); <------>flow_log(" rctx->src_sg: %p, src_skip %u\n", <------><------> rctx->src_sg, rctx->src_skip); <------>flow_log(" assoc: %p, assoclen %u\n", rctx->assoc, req->assoclen); <------>flow_log(" dst sg: %p\n", req->dst); <------>flow_log(" rctx->dst_sg: %p, dst_skip %u\n", <------><------> rctx->dst_sg, rctx->dst_skip); <------>flow_log(" iv_ctr_len:%u\n", rctx->iv_ctr_len); <------>flow_dump(" iv: ", req->iv, rctx->iv_ctr_len); <------>flow_log(" authkeylen:%u\n", ctx->authkeylen); <------>flow_log(" is_esp: %s\n", ctx->is_esp ? "yes" : "no"); <------>if (ctx->max_payload == SPU_MAX_PAYLOAD_INF) <------><------>flow_log(" max_payload infinite"); <------>else <------><------>flow_log(" max_payload: %u\n", ctx->max_payload); <------>if (unlikely(aead_need_fallback(req))) <------><------>return aead_do_fallback(req, is_encrypt); <------>/* <------> * Do memory allocations for request after fallback check, because if we <------> * do fallback, we won't call finish_req() to dealloc. <------> */ <------>if (rctx->iv_ctr_len) { <------><------>if (ctx->salt_len) <------><------><------>memcpy(rctx->msg_buf.iv_ctr + ctx->salt_offset, <------><------><------> ctx->salt, ctx->salt_len); <------><------>memcpy(rctx->msg_buf.iv_ctr + ctx->salt_offset + ctx->salt_len, <------><------> req->iv, <------><------> rctx->iv_ctr_len - ctx->salt_len - ctx->salt_offset); <------>} <------>rctx->chan_idx = select_channel(); <------>err = handle_aead_req(rctx); <------>if (err != -EINPROGRESS) <------><------>/* synchronous result */ <------><------>spu_chunk_cleanup(rctx); <------>return err; } static int aead_authenc_setkey(struct crypto_aead *cipher, <------><------><------> const u8 *key, unsigned int keylen) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>struct crypto_tfm *tfm = crypto_aead_tfm(cipher); <------>struct crypto_authenc_keys keys; <------>int ret; <------>flow_log("%s() aead:%p key:%p keylen:%u\n", __func__, cipher, key, <------><------> keylen); <------>flow_dump(" key: ", key, keylen); <------>ret = crypto_authenc_extractkeys(&keys, key, keylen); <------>if (ret) <------><------>goto badkey; <------>if (keys.enckeylen > MAX_KEY_SIZE || <------> keys.authkeylen > MAX_KEY_SIZE) <------><------>goto badkey; <------>ctx->enckeylen = keys.enckeylen; <------>ctx->authkeylen = keys.authkeylen; <------>memcpy(ctx->enckey, keys.enckey, keys.enckeylen); <------>/* May end up padding auth key. So make sure it's zeroed. */ <------>memset(ctx->authkey, 0, sizeof(ctx->authkey)); <------>memcpy(ctx->authkey, keys.authkey, keys.authkeylen); <------>switch (ctx->alg->cipher_info.alg) { <------>case CIPHER_ALG_DES: <------><------>if (verify_aead_des_key(cipher, keys.enckey, keys.enckeylen)) <------><------><------>return -EINVAL; <------><------>ctx->cipher_type = CIPHER_TYPE_DES; <------><------>break; <------>case CIPHER_ALG_3DES: <------><------>if (verify_aead_des3_key(cipher, keys.enckey, keys.enckeylen)) <------><------><------>return -EINVAL; <------><------>ctx->cipher_type = CIPHER_TYPE_3DES; <------><------>break; <------>case CIPHER_ALG_AES: <------><------>switch (ctx->enckeylen) { <------><------>case AES_KEYSIZE_128: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES128; <------><------><------>break; <------><------>case AES_KEYSIZE_192: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES192; <------><------><------>break; <------><------>case AES_KEYSIZE_256: <------><------><------>ctx->cipher_type = CIPHER_TYPE_AES256; <------><------><------>break; <------><------>default: <------><------><------>goto badkey; <------><------>} <------><------>break; <------>default: <------><------>pr_err("%s() Error: Unknown cipher alg\n", __func__); <------><------>return -EINVAL; <------>} <------>flow_log(" enckeylen:%u authkeylen:%u\n", ctx->enckeylen, <------><------> ctx->authkeylen); <------>flow_dump(" enc: ", ctx->enckey, ctx->enckeylen); <------>flow_dump(" auth: ", ctx->authkey, ctx->authkeylen); <------>/* setkey the fallback just in case we needto use it */ <------>if (ctx->fallback_cipher) { <------><------>flow_log(" running fallback setkey()\n"); <------><------>ctx->fallback_cipher->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK; <------><------>ctx->fallback_cipher->base.crt_flags |= <------><------> tfm->crt_flags & CRYPTO_TFM_REQ_MASK; <------><------>ret = crypto_aead_setkey(ctx->fallback_cipher, key, keylen); <------><------>if (ret) <------><------><------>flow_log(" fallback setkey() returned:%d\n", ret); <------>} <------>ctx->spu_resp_hdr_len = spu->spu_response_hdr_len(ctx->authkeylen, <------><------><------><------><------><------><------> ctx->enckeylen, <------><------><------><------><------><------><------> false); <------>atomic_inc(&iproc_priv.setkey_cnt[SPU_OP_AEAD]); <------>return ret; badkey: <------>ctx->enckeylen = 0; <------>ctx->authkeylen = 0; <------>ctx->digestsize = 0; <------>return -EINVAL; } static int aead_gcm_ccm_setkey(struct crypto_aead *cipher, <------><------><------> const u8 *key, unsigned int keylen) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>struct crypto_tfm *tfm = crypto_aead_tfm(cipher); <------>int ret = 0; <------>flow_log("%s() keylen:%u\n", __func__, keylen); <------>flow_dump(" key: ", key, keylen); <------>if (!ctx->is_esp) <------><------>ctx->digestsize = keylen; <------>ctx->enckeylen = keylen; <------>ctx->authkeylen = 0; <------>switch (ctx->enckeylen) { <------>case AES_KEYSIZE_128: <------><------>ctx->cipher_type = CIPHER_TYPE_AES128; <------><------>break; <------>case AES_KEYSIZE_192: <------><------>ctx->cipher_type = CIPHER_TYPE_AES192; <------><------>break; <------>case AES_KEYSIZE_256: <------><------>ctx->cipher_type = CIPHER_TYPE_AES256; <------><------>break; <------>default: <------><------>goto badkey; <------>} <------>memcpy(ctx->enckey, key, ctx->enckeylen); <------>flow_log(" enckeylen:%u authkeylen:%u\n", ctx->enckeylen, <------><------> ctx->authkeylen); <------>flow_dump(" enc: ", ctx->enckey, ctx->enckeylen); <------>flow_dump(" auth: ", ctx->authkey, ctx->authkeylen); <------>/* setkey the fallback just in case we need to use it */ <------>if (ctx->fallback_cipher) { <------><------>flow_log(" running fallback setkey()\n"); <------><------>ctx->fallback_cipher->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK; <------><------>ctx->fallback_cipher->base.crt_flags |= <------><------> tfm->crt_flags & CRYPTO_TFM_REQ_MASK; <------><------>ret = crypto_aead_setkey(ctx->fallback_cipher, key, <------><------><------><------><------> keylen + ctx->salt_len); <------><------>if (ret) <------><------><------>flow_log(" fallback setkey() returned:%d\n", ret); <------>} <------>ctx->spu_resp_hdr_len = spu->spu_response_hdr_len(ctx->authkeylen, <------><------><------><------><------><------><------> ctx->enckeylen, <------><------><------><------><------><------><------> false); <------>atomic_inc(&iproc_priv.setkey_cnt[SPU_OP_AEAD]); <------>flow_log(" enckeylen:%u authkeylen:%u\n", ctx->enckeylen, <------><------> ctx->authkeylen); <------>return ret; badkey: <------>ctx->enckeylen = 0; <------>ctx->authkeylen = 0; <------>ctx->digestsize = 0; <------>return -EINVAL; } /** * aead_gcm_esp_setkey() - setkey() operation for ESP variant of GCM AES. * @cipher: AEAD structure * @key: Key followed by 4 bytes of salt * @keylen: Length of key plus salt, in bytes * * Extracts salt from key and stores it to be prepended to IV on each request. * Digest is always 16 bytes * * Return: Value from generic gcm setkey. */ static int aead_gcm_esp_setkey(struct crypto_aead *cipher, <------><------><------> const u8 *key, unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>flow_log("%s\n", __func__); <------>if (keylen < GCM_ESP_SALT_SIZE) <------><------>return -EINVAL; <------>ctx->salt_len = GCM_ESP_SALT_SIZE; <------>ctx->salt_offset = GCM_ESP_SALT_OFFSET; <------>memcpy(ctx->salt, key + keylen - GCM_ESP_SALT_SIZE, GCM_ESP_SALT_SIZE); <------>keylen -= GCM_ESP_SALT_SIZE; <------>ctx->digestsize = GCM_ESP_DIGESTSIZE; <------>ctx->is_esp = true; <------>flow_dump("salt: ", ctx->salt, GCM_ESP_SALT_SIZE); <------>return aead_gcm_ccm_setkey(cipher, key, keylen); } /** * rfc4543_gcm_esp_setkey() - setkey operation for RFC4543 variant of GCM/GMAC. * cipher: AEAD structure * key: Key followed by 4 bytes of salt * keylen: Length of key plus salt, in bytes * * Extracts salt from key and stores it to be prepended to IV on each request. * Digest is always 16 bytes * * Return: Value from generic gcm setkey. */ static int rfc4543_gcm_esp_setkey(struct crypto_aead *cipher, <------><------><------><------> const u8 *key, unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>flow_log("%s\n", __func__); <------>if (keylen < GCM_ESP_SALT_SIZE) <------><------>return -EINVAL; <------>ctx->salt_len = GCM_ESP_SALT_SIZE; <------>ctx->salt_offset = GCM_ESP_SALT_OFFSET; <------>memcpy(ctx->salt, key + keylen - GCM_ESP_SALT_SIZE, GCM_ESP_SALT_SIZE); <------>keylen -= GCM_ESP_SALT_SIZE; <------>ctx->digestsize = GCM_ESP_DIGESTSIZE; <------>ctx->is_esp = true; <------>ctx->is_rfc4543 = true; <------>flow_dump("salt: ", ctx->salt, GCM_ESP_SALT_SIZE); <------>return aead_gcm_ccm_setkey(cipher, key, keylen); } /** * aead_ccm_esp_setkey() - setkey() operation for ESP variant of CCM AES. * @cipher: AEAD structure * @key: Key followed by 4 bytes of salt * @keylen: Length of key plus salt, in bytes * * Extracts salt from key and stores it to be prepended to IV on each request. * Digest is always 16 bytes * * Return: Value from generic ccm setkey. */ static int aead_ccm_esp_setkey(struct crypto_aead *cipher, <------><------><------> const u8 *key, unsigned int keylen) { <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>flow_log("%s\n", __func__); <------>if (keylen < CCM_ESP_SALT_SIZE) <------><------>return -EINVAL; <------>ctx->salt_len = CCM_ESP_SALT_SIZE; <------>ctx->salt_offset = CCM_ESP_SALT_OFFSET; <------>memcpy(ctx->salt, key + keylen - CCM_ESP_SALT_SIZE, CCM_ESP_SALT_SIZE); <------>keylen -= CCM_ESP_SALT_SIZE; <------>ctx->is_esp = true; <------>flow_dump("salt: ", ctx->salt, CCM_ESP_SALT_SIZE); <------>return aead_gcm_ccm_setkey(cipher, key, keylen); } static int aead_setauthsize(struct crypto_aead *cipher, unsigned int authsize) { <------>struct iproc_ctx_s *ctx = crypto_aead_ctx(cipher); <------>int ret = 0; <------>flow_log("%s() authkeylen:%u authsize:%u\n", <------><------> __func__, ctx->authkeylen, authsize); <------>ctx->digestsize = authsize; <------>/* setkey the fallback just in case we needto use it */ <------>if (ctx->fallback_cipher) { <------><------>flow_log(" running fallback setauth()\n"); <------><------>ret = crypto_aead_setauthsize(ctx->fallback_cipher, authsize); <------><------>if (ret) <------><------><------>flow_log(" fallback setauth() returned:%d\n", ret); <------>} <------>return ret; } static int aead_encrypt(struct aead_request *req) { <------>flow_log("%s() cryptlen:%u %08x\n", __func__, req->cryptlen, <------><------> req->cryptlen); <------>dump_sg(req->src, 0, req->cryptlen + req->assoclen); <------>flow_log(" assoc_len:%u\n", req->assoclen); <------>return aead_enqueue(req, true); } static int aead_decrypt(struct aead_request *req) { <------>flow_log("%s() cryptlen:%u\n", __func__, req->cryptlen); <------>dump_sg(req->src, 0, req->cryptlen + req->assoclen); <------>flow_log(" assoc_len:%u\n", req->assoclen); <------>return aead_enqueue(req, false); } /* ==================== Supported Cipher Algorithms ==================== */ static struct iproc_alg_s driver_algs[] = { <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "gcm(aes)", <------><------><------>.cra_driver_name = "gcm-aes-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK <------><------> }, <------><------> .setkey = aead_gcm_ccm_setkey, <------><------> .ivsize = GCM_AES_IV_SIZE, <------><------>.maxauthsize = AES_BLOCK_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_GCM, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_GCM, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "ccm(aes)", <------><------><------>.cra_driver_name = "ccm-aes-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK <------><------> }, <------><------> .setkey = aead_gcm_ccm_setkey, <------><------> .ivsize = CCM_AES_IV_SIZE, <------><------>.maxauthsize = AES_BLOCK_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CCM, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_CCM, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "rfc4106(gcm(aes))", <------><------><------>.cra_driver_name = "gcm-aes-esp-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK <------><------> }, <------><------> .setkey = aead_gcm_esp_setkey, <------><------> .ivsize = GCM_RFC4106_IV_SIZE, <------><------> .maxauthsize = AES_BLOCK_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_GCM, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_GCM, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "rfc4309(ccm(aes))", <------><------><------>.cra_driver_name = "ccm-aes-esp-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK <------><------> }, <------><------> .setkey = aead_ccm_esp_setkey, <------><------> .ivsize = CCM_AES_IV_SIZE, <------><------> .maxauthsize = AES_BLOCK_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CCM, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_CCM, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "rfc4543(gcm(aes))", <------><------><------>.cra_driver_name = "gmac-aes-esp-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK <------><------> }, <------><------> .setkey = rfc4543_gcm_esp_setkey, <------><------> .ivsize = GCM_RFC4106_IV_SIZE, <------><------> .maxauthsize = AES_BLOCK_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_GCM, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_GCM, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(md5),cbc(aes))", <------><------><------>.cra_driver_name = "authenc-hmac-md5-cbc-aes-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------>.ivsize = AES_BLOCK_SIZE, <------><------>.maxauthsize = MD5_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_MD5, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha1),cbc(aes))", <------><------><------>.cra_driver_name = "authenc-hmac-sha1-cbc-aes-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = AES_BLOCK_SIZE, <------><------> .maxauthsize = SHA1_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA1, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha256),cbc(aes))", <------><------><------>.cra_driver_name = "authenc-hmac-sha256-cbc-aes-iproc", <------><------><------>.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = AES_BLOCK_SIZE, <------><------> .maxauthsize = SHA256_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA256, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(md5),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-md5-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = MD5_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_MD5, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha1),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-sha1-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = SHA1_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA1, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha224),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-sha224-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = SHA224_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA224, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha256),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-sha256-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = SHA256_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA256, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha384),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-sha384-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = SHA384_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA384, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha512),cbc(des))", <------><------><------>.cra_driver_name = "authenc-hmac-sha512-cbc-des-iproc", <------><------><------>.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES_BLOCK_SIZE, <------><------> .maxauthsize = SHA512_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA512, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(md5),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-md5-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = MD5_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_MD5, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha1),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-sha1-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = SHA1_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA1, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha224),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-sha224-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = SHA224_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA224, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha256),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-sha256-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = SHA256_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA256, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha384),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-sha384-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = SHA384_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA384, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AEAD, <------> .alg.aead = { <------><------> .base = { <------><------><------>.cra_name = "authenc(hmac(sha512),cbc(des3_ede))", <------><------><------>.cra_driver_name = "authenc-hmac-sha512-cbc-des3-iproc", <------><------><------>.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.cra_flags = CRYPTO_ALG_NEED_FALLBACK | <------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY <------><------> }, <------><------> .setkey = aead_authenc_setkey, <------><------> .ivsize = DES3_EDE_BLOCK_SIZE, <------><------> .maxauthsize = SHA512_DIGEST_SIZE, <------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA512, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> .auth_first = 0, <------> }, /* SKCIPHER algorithms. */ <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ofb(des)", <------><------><------>.base.cra_driver_name = "ofb-des-iproc", <------><------><------>.base.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.min_keysize = DES_KEY_SIZE, <------><------><------>.max_keysize = DES_KEY_SIZE, <------><------><------>.ivsize = DES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_OFB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "cbc(des)", <------><------><------>.base.cra_driver_name = "cbc-des-iproc", <------><------><------>.base.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.min_keysize = DES_KEY_SIZE, <------><------><------>.max_keysize = DES_KEY_SIZE, <------><------><------>.ivsize = DES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ecb(des)", <------><------><------>.base.cra_driver_name = "ecb-des-iproc", <------><------><------>.base.cra_blocksize = DES_BLOCK_SIZE, <------><------><------>.min_keysize = DES_KEY_SIZE, <------><------><------>.max_keysize = DES_KEY_SIZE, <------><------><------>.ivsize = 0, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_DES, <------><------><------> .mode = CIPHER_MODE_ECB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ofb(des3_ede)", <------><------><------>.base.cra_driver_name = "ofb-des3-iproc", <------><------><------>.base.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.min_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.max_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.ivsize = DES3_EDE_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_OFB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "cbc(des3_ede)", <------><------><------>.base.cra_driver_name = "cbc-des3-iproc", <------><------><------>.base.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.min_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.max_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.ivsize = DES3_EDE_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ecb(des3_ede)", <------><------><------>.base.cra_driver_name = "ecb-des3-iproc", <------><------><------>.base.cra_blocksize = DES3_EDE_BLOCK_SIZE, <------><------><------>.min_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.max_keysize = DES3_EDE_KEY_SIZE, <------><------><------>.ivsize = 0, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_3DES, <------><------><------> .mode = CIPHER_MODE_ECB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ofb(aes)", <------><------><------>.base.cra_driver_name = "ofb-aes-iproc", <------><------><------>.base.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.min_keysize = AES_MIN_KEY_SIZE, <------><------><------>.max_keysize = AES_MAX_KEY_SIZE, <------><------><------>.ivsize = AES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_OFB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "cbc(aes)", <------><------><------>.base.cra_driver_name = "cbc-aes-iproc", <------><------><------>.base.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.min_keysize = AES_MIN_KEY_SIZE, <------><------><------>.max_keysize = AES_MAX_KEY_SIZE, <------><------><------>.ivsize = AES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CBC, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ecb(aes)", <------><------><------>.base.cra_driver_name = "ecb-aes-iproc", <------><------><------>.base.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.min_keysize = AES_MIN_KEY_SIZE, <------><------><------>.max_keysize = AES_MAX_KEY_SIZE, <------><------><------>.ivsize = 0, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_ECB, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "ctr(aes)", <------><------><------>.base.cra_driver_name = "ctr-aes-iproc", <------><------><------>.base.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.min_keysize = AES_MIN_KEY_SIZE, <------><------><------>.max_keysize = AES_MAX_KEY_SIZE, <------><------><------>.ivsize = AES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_CTR, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, { <------> .type = CRYPTO_ALG_TYPE_SKCIPHER, <------> .alg.skcipher = { <------><------><------>.base.cra_name = "xts(aes)", <------><------><------>.base.cra_driver_name = "xts-aes-iproc", <------><------><------>.base.cra_blocksize = AES_BLOCK_SIZE, <------><------><------>.min_keysize = 2 * AES_MIN_KEY_SIZE, <------><------><------>.max_keysize = 2 * AES_MAX_KEY_SIZE, <------><------><------>.ivsize = AES_BLOCK_SIZE, <------><------><------>}, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_AES, <------><------><------> .mode = CIPHER_MODE_XTS, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_NONE, <------><------> .mode = HASH_MODE_NONE, <------><------> }, <------> }, /* AHASH algorithms. */ <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = MD5_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "md5", <------><------><------><------> .cra_driver_name = "md5-iproc", <------><------><------><------> .cra_blocksize = MD5_BLOCK_WORDS * 4, <------><------><------><------> .cra_flags = CRYPTO_ALG_ASYNC | <------><------><------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_MD5, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = MD5_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(md5)", <------><------><------><------> .cra_driver_name = "hmac-md5-iproc", <------><------><------><------> .cra_blocksize = MD5_BLOCK_WORDS * 4, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_MD5, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA1_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha1", <------><------><------><------> .cra_driver_name = "sha1-iproc", <------><------><------><------> .cra_blocksize = SHA1_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA1, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA1_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha1)", <------><------><------><------> .cra_driver_name = "hmac-sha1-iproc", <------><------><------><------> .cra_blocksize = SHA1_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA1, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------><------>.halg.digestsize = SHA224_DIGEST_SIZE, <------><------><------>.halg.base = { <------><------><------><------> .cra_name = "sha224", <------><------><------><------> .cra_driver_name = "sha224-iproc", <------><------><------><------> .cra_blocksize = SHA224_BLOCK_SIZE, <------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA224, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA224_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha224)", <------><------><------><------> .cra_driver_name = "hmac-sha224-iproc", <------><------><------><------> .cra_blocksize = SHA224_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA224, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA256_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha256", <------><------><------><------> .cra_driver_name = "sha256-iproc", <------><------><------><------> .cra_blocksize = SHA256_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA256, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA256_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha256)", <------><------><------><------> .cra_driver_name = "hmac-sha256-iproc", <------><------><------><------> .cra_blocksize = SHA256_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA256, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------>.type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA384_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha384", <------><------><------><------> .cra_driver_name = "sha384-iproc", <------><------><------><------> .cra_blocksize = SHA384_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA384, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA384_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha384)", <------><------><------><------> .cra_driver_name = "hmac-sha384-iproc", <------><------><------><------> .cra_blocksize = SHA384_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA384, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA512_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha512", <------><------><------><------> .cra_driver_name = "sha512-iproc", <------><------><------><------> .cra_blocksize = SHA512_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA512, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA512_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha512)", <------><------><------><------> .cra_driver_name = "hmac-sha512-iproc", <------><------><------><------> .cra_blocksize = SHA512_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA512, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_224_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha3-224", <------><------><------><------> .cra_driver_name = "sha3-224-iproc", <------><------><------><------> .cra_blocksize = SHA3_224_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_224, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_224_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha3-224)", <------><------><------><------> .cra_driver_name = "hmac-sha3-224-iproc", <------><------><------><------> .cra_blocksize = SHA3_224_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_224, <------><------> .mode = HASH_MODE_HMAC <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_256_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha3-256", <------><------><------><------> .cra_driver_name = "sha3-256-iproc", <------><------><------><------> .cra_blocksize = SHA3_256_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_256, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_256_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha3-256)", <------><------><------><------> .cra_driver_name = "hmac-sha3-256-iproc", <------><------><------><------> .cra_blocksize = SHA3_256_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_256, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_384_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha3-384", <------><------><------><------> .cra_driver_name = "sha3-384-iproc", <------><------><------><------> .cra_blocksize = SHA3_224_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_384, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_384_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha3-384)", <------><------><------><------> .cra_driver_name = "hmac-sha3-384-iproc", <------><------><------><------> .cra_blocksize = SHA3_384_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_384, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_512_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "sha3-512", <------><------><------><------> .cra_driver_name = "sha3-512-iproc", <------><------><------><------> .cra_blocksize = SHA3_512_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_512, <------><------> .mode = HASH_MODE_HASH, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = SHA3_512_DIGEST_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "hmac(sha3-512)", <------><------><------><------> .cra_driver_name = "hmac-sha3-512-iproc", <------><------><------><------> .cra_blocksize = SHA3_512_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_SHA3_512, <------><------> .mode = HASH_MODE_HMAC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = AES_BLOCK_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "xcbc(aes)", <------><------><------><------> .cra_driver_name = "xcbc-aes-iproc", <------><------><------><------> .cra_blocksize = AES_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_XCBC, <------><------> }, <------> }, <------>{ <------> .type = CRYPTO_ALG_TYPE_AHASH, <------> .alg.hash = { <------><------> .halg.digestsize = AES_BLOCK_SIZE, <------><------> .halg.base = { <------><------><------><------> .cra_name = "cmac(aes)", <------><------><------><------> .cra_driver_name = "cmac-aes-iproc", <------><------><------><------> .cra_blocksize = AES_BLOCK_SIZE, <------><------><------><------>} <------><------> }, <------> .cipher_info = { <------><------><------> .alg = CIPHER_ALG_NONE, <------><------><------> .mode = CIPHER_MODE_NONE, <------><------><------> }, <------> .auth_info = { <------><------> .alg = HASH_ALG_AES, <------><------> .mode = HASH_MODE_CMAC, <------><------> }, <------> }, }; static int generic_cra_init(struct crypto_tfm *tfm, <------><------><------> struct iproc_alg_s *cipher_alg) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct iproc_ctx_s *ctx = crypto_tfm_ctx(tfm); <------>unsigned int blocksize = crypto_tfm_alg_blocksize(tfm); <------>flow_log("%s()\n", __func__); <------>ctx->alg = cipher_alg; <------>ctx->cipher = cipher_alg->cipher_info; <------>ctx->auth = cipher_alg->auth_info; <------>ctx->auth_first = cipher_alg->auth_first; <------>ctx->max_payload = spu->spu_ctx_max_payload(ctx->cipher.alg, <------><------><------><------><------><------> ctx->cipher.mode, <------><------><------><------><------><------> blocksize); <------>ctx->fallback_cipher = NULL; <------>ctx->enckeylen = 0; <------>ctx->authkeylen = 0; <------>atomic_inc(&iproc_priv.stream_count); <------>atomic_inc(&iproc_priv.session_count); <------>return 0; } static int skcipher_init_tfm(struct crypto_skcipher *skcipher) { <------>struct crypto_tfm *tfm = crypto_skcipher_tfm(skcipher); <------>struct skcipher_alg *alg = crypto_skcipher_alg(skcipher); <------>struct iproc_alg_s *cipher_alg; <------>flow_log("%s()\n", __func__); <------>crypto_skcipher_set_reqsize(skcipher, sizeof(struct iproc_reqctx_s)); <------>cipher_alg = container_of(alg, struct iproc_alg_s, alg.skcipher); <------>return generic_cra_init(tfm, cipher_alg); } static int ahash_cra_init(struct crypto_tfm *tfm) { <------>int err; <------>struct crypto_alg *alg = tfm->__crt_alg; <------>struct iproc_alg_s *cipher_alg; <------>cipher_alg = container_of(__crypto_ahash_alg(alg), struct iproc_alg_s, <------><------><------><------> alg.hash); <------>err = generic_cra_init(tfm, cipher_alg); <------>flow_log("%s()\n", __func__); <------>/* <------> * export state size has to be < 512 bytes. So don't include msg bufs <------> * in state size. <------> */ <------>crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), <------><------><------><------> sizeof(struct iproc_reqctx_s)); <------>return err; } static int aead_cra_init(struct crypto_aead *aead) { <------>struct crypto_tfm *tfm = crypto_aead_tfm(aead); <------>struct iproc_ctx_s *ctx = crypto_tfm_ctx(tfm); <------>struct crypto_alg *alg = tfm->__crt_alg; <------>struct aead_alg *aalg = container_of(alg, struct aead_alg, base); <------>struct iproc_alg_s *cipher_alg = container_of(aalg, struct iproc_alg_s, <------><------><------><------><------><------> alg.aead); <------>int err = generic_cra_init(tfm, cipher_alg); <------>flow_log("%s()\n", __func__); <------>crypto_aead_set_reqsize(aead, sizeof(struct iproc_reqctx_s)); <------>ctx->is_esp = false; <------>ctx->salt_len = 0; <------>ctx->salt_offset = 0; <------>/* random first IV */ <------>get_random_bytes(ctx->iv, MAX_IV_SIZE); <------>flow_dump(" iv: ", ctx->iv, MAX_IV_SIZE); <------>if (!err) { <------><------>if (alg->cra_flags & CRYPTO_ALG_NEED_FALLBACK) { <------><------><------>flow_log("%s() creating fallback cipher\n", __func__); <------><------><------>ctx->fallback_cipher = <------><------><------> crypto_alloc_aead(alg->cra_name, 0, <------><------><------><------><------> CRYPTO_ALG_ASYNC | <------><------><------><------><------> CRYPTO_ALG_NEED_FALLBACK); <------><------><------>if (IS_ERR(ctx->fallback_cipher)) { <------><------><------><------>pr_err("%s() Error: failed to allocate fallback for %s\n", <------><------><------><------> __func__, alg->cra_name); <------><------><------><------>return PTR_ERR(ctx->fallback_cipher); <------><------><------>} <------><------>} <------>} <------>return err; } static void generic_cra_exit(struct crypto_tfm *tfm) { <------>atomic_dec(&iproc_priv.session_count); } static void skcipher_exit_tfm(struct crypto_skcipher *tfm) { <------>generic_cra_exit(crypto_skcipher_tfm(tfm)); } static void aead_cra_exit(struct crypto_aead *aead) { <------>struct crypto_tfm *tfm = crypto_aead_tfm(aead); <------>struct iproc_ctx_s *ctx = crypto_tfm_ctx(tfm); <------>generic_cra_exit(tfm); <------>if (ctx->fallback_cipher) { <------><------>crypto_free_aead(ctx->fallback_cipher); <------><------>ctx->fallback_cipher = NULL; <------>} } /** * spu_functions_register() - Specify hardware-specific SPU functions based on * SPU type read from device tree. * @dev: device structure * @spu_type: SPU hardware generation * @spu_subtype: SPU hardware version */ static void spu_functions_register(struct device *dev, <------><------><------><------> enum spu_spu_type spu_type, <------><------><------><------> enum spu_spu_subtype spu_subtype) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>if (spu_type == SPU_TYPE_SPUM) { <------><------>dev_dbg(dev, "Registering SPUM functions"); <------><------>spu->spu_dump_msg_hdr = spum_dump_msg_hdr; <------><------>spu->spu_payload_length = spum_payload_length; <------><------>spu->spu_response_hdr_len = spum_response_hdr_len; <------><------>spu->spu_hash_pad_len = spum_hash_pad_len; <------><------>spu->spu_gcm_ccm_pad_len = spum_gcm_ccm_pad_len; <------><------>spu->spu_assoc_resp_len = spum_assoc_resp_len; <------><------>spu->spu_aead_ivlen = spum_aead_ivlen; <------><------>spu->spu_hash_type = spum_hash_type; <------><------>spu->spu_digest_size = spum_digest_size; <------><------>spu->spu_create_request = spum_create_request; <------><------>spu->spu_cipher_req_init = spum_cipher_req_init; <------><------>spu->spu_cipher_req_finish = spum_cipher_req_finish; <------><------>spu->spu_request_pad = spum_request_pad; <------><------>spu->spu_tx_status_len = spum_tx_status_len; <------><------>spu->spu_rx_status_len = spum_rx_status_len; <------><------>spu->spu_status_process = spum_status_process; <------><------>spu->spu_xts_tweak_in_payload = spum_xts_tweak_in_payload; <------><------>spu->spu_ccm_update_iv = spum_ccm_update_iv; <------><------>spu->spu_wordalign_padlen = spum_wordalign_padlen; <------><------>if (spu_subtype == SPU_SUBTYPE_SPUM_NS2) <------><------><------>spu->spu_ctx_max_payload = spum_ns2_ctx_max_payload; <------><------>else <------><------><------>spu->spu_ctx_max_payload = spum_nsp_ctx_max_payload; <------>} else { <------><------>dev_dbg(dev, "Registering SPU2 functions"); <------><------>spu->spu_dump_msg_hdr = spu2_dump_msg_hdr; <------><------>spu->spu_ctx_max_payload = spu2_ctx_max_payload; <------><------>spu->spu_payload_length = spu2_payload_length; <------><------>spu->spu_response_hdr_len = spu2_response_hdr_len; <------><------>spu->spu_hash_pad_len = spu2_hash_pad_len; <------><------>spu->spu_gcm_ccm_pad_len = spu2_gcm_ccm_pad_len; <------><------>spu->spu_assoc_resp_len = spu2_assoc_resp_len; <------><------>spu->spu_aead_ivlen = spu2_aead_ivlen; <------><------>spu->spu_hash_type = spu2_hash_type; <------><------>spu->spu_digest_size = spu2_digest_size; <------><------>spu->spu_create_request = spu2_create_request; <------><------>spu->spu_cipher_req_init = spu2_cipher_req_init; <------><------>spu->spu_cipher_req_finish = spu2_cipher_req_finish; <------><------>spu->spu_request_pad = spu2_request_pad; <------><------>spu->spu_tx_status_len = spu2_tx_status_len; <------><------>spu->spu_rx_status_len = spu2_rx_status_len; <------><------>spu->spu_status_process = spu2_status_process; <------><------>spu->spu_xts_tweak_in_payload = spu2_xts_tweak_in_payload; <------><------>spu->spu_ccm_update_iv = spu2_ccm_update_iv; <------><------>spu->spu_wordalign_padlen = spu2_wordalign_padlen; <------>} } /** * spu_mb_init() - Initialize mailbox client. Request ownership of a mailbox * channel for the SPU being probed. * @dev: SPU driver device structure * * Return: 0 if successful * < 0 otherwise */ static int spu_mb_init(struct device *dev) { <------>struct mbox_client *mcl = &iproc_priv.mcl; <------>int err, i; <------>iproc_priv.mbox = devm_kcalloc(dev, iproc_priv.spu.num_chan, <------><------><------><------> sizeof(struct mbox_chan *), GFP_KERNEL); <------>if (!iproc_priv.mbox) <------><------>return -ENOMEM; <------>mcl->dev = dev; <------>mcl->tx_block = false; <------>mcl->tx_tout = 0; <------>mcl->knows_txdone = true; <------>mcl->rx_callback = spu_rx_callback; <------>mcl->tx_done = NULL; <------>for (i = 0; i < iproc_priv.spu.num_chan; i++) { <------><------>iproc_priv.mbox[i] = mbox_request_channel(mcl, i); <------><------>if (IS_ERR(iproc_priv.mbox[i])) { <------><------><------>err = PTR_ERR(iproc_priv.mbox[i]); <------><------><------>dev_err(dev, <------><------><------><------>"Mbox channel %d request failed with err %d", <------><------><------><------>i, err); <------><------><------>iproc_priv.mbox[i] = NULL; <------><------><------>goto free_channels; <------><------>} <------>} <------>return 0; free_channels: <------>for (i = 0; i < iproc_priv.spu.num_chan; i++) { <------><------>if (iproc_priv.mbox[i]) <------><------><------>mbox_free_channel(iproc_priv.mbox[i]); <------>} <------>return err; } static void spu_mb_release(struct platform_device *pdev) { <------>int i; <------>for (i = 0; i < iproc_priv.spu.num_chan; i++) <------><------>mbox_free_channel(iproc_priv.mbox[i]); } static void spu_counters_init(void) { <------>int i; <------>int j; <------>atomic_set(&iproc_priv.session_count, 0); <------>atomic_set(&iproc_priv.stream_count, 0); <------>atomic_set(&iproc_priv.next_chan, (int)iproc_priv.spu.num_chan); <------>atomic64_set(&iproc_priv.bytes_in, 0); <------>atomic64_set(&iproc_priv.bytes_out, 0); <------>for (i = 0; i < SPU_OP_NUM; i++) { <------><------>atomic_set(&iproc_priv.op_counts[i], 0); <------><------>atomic_set(&iproc_priv.setkey_cnt[i], 0); <------>} <------>for (i = 0; i < CIPHER_ALG_LAST; i++) <------><------>for (j = 0; j < CIPHER_MODE_LAST; j++) <------><------><------>atomic_set(&iproc_priv.cipher_cnt[i][j], 0); <------>for (i = 0; i < HASH_ALG_LAST; i++) { <------><------>atomic_set(&iproc_priv.hash_cnt[i], 0); <------><------>atomic_set(&iproc_priv.hmac_cnt[i], 0); <------>} <------>for (i = 0; i < AEAD_TYPE_LAST; i++) <------><------>atomic_set(&iproc_priv.aead_cnt[i], 0); <------>atomic_set(&iproc_priv.mb_no_spc, 0); <------>atomic_set(&iproc_priv.mb_send_fail, 0); <------>atomic_set(&iproc_priv.bad_icv, 0); } static int spu_register_skcipher(struct iproc_alg_s *driver_alg) { <------>struct skcipher_alg *crypto = &driver_alg->alg.skcipher; <------>int err; <------>crypto->base.cra_module = THIS_MODULE; <------>crypto->base.cra_priority = cipher_pri; <------>crypto->base.cra_alignmask = 0; <------>crypto->base.cra_ctxsize = sizeof(struct iproc_ctx_s); <------>crypto->base.cra_flags = CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY | <------><------><------><------> CRYPTO_ALG_KERN_DRIVER_ONLY; <------>crypto->init = skcipher_init_tfm; <------>crypto->exit = skcipher_exit_tfm; <------>crypto->setkey = skcipher_setkey; <------>crypto->encrypt = skcipher_encrypt; <------>crypto->decrypt = skcipher_decrypt; <------>err = crypto_register_skcipher(crypto); <------>/* Mark alg as having been registered, if successful */ <------>if (err == 0) <------><------>driver_alg->registered = true; <------>pr_debug(" registered skcipher %s\n", crypto->base.cra_driver_name); <------>return err; } static int spu_register_ahash(struct iproc_alg_s *driver_alg) { <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct ahash_alg *hash = &driver_alg->alg.hash; <------>int err; <------>/* AES-XCBC is the only AES hash type currently supported on SPU-M */ <------>if ((driver_alg->auth_info.alg == HASH_ALG_AES) && <------> (driver_alg->auth_info.mode != HASH_MODE_XCBC) && <------> (spu->spu_type == SPU_TYPE_SPUM)) <------><------>return 0; <------>/* SHA3 algorithm variants are not registered for SPU-M or SPU2. */ <------>if ((driver_alg->auth_info.alg >= HASH_ALG_SHA3_224) && <------> (spu->spu_subtype != SPU_SUBTYPE_SPU2_V2)) <------><------>return 0; <------>hash->halg.base.cra_module = THIS_MODULE; <------>hash->halg.base.cra_priority = hash_pri; <------>hash->halg.base.cra_alignmask = 0; <------>hash->halg.base.cra_ctxsize = sizeof(struct iproc_ctx_s); <------>hash->halg.base.cra_init = ahash_cra_init; <------>hash->halg.base.cra_exit = generic_cra_exit; <------>hash->halg.base.cra_flags = CRYPTO_ALG_ASYNC | <------><------><------><------> CRYPTO_ALG_ALLOCATES_MEMORY; <------>hash->halg.statesize = sizeof(struct spu_hash_export_s); <------>if (driver_alg->auth_info.mode != HASH_MODE_HMAC) { <------><------>hash->init = ahash_init; <------><------>hash->update = ahash_update; <------><------>hash->final = ahash_final; <------><------>hash->finup = ahash_finup; <------><------>hash->digest = ahash_digest; <------><------>if ((driver_alg->auth_info.alg == HASH_ALG_AES) && <------><------> ((driver_alg->auth_info.mode == HASH_MODE_XCBC) || <------><------> (driver_alg->auth_info.mode == HASH_MODE_CMAC))) { <------><------><------>hash->setkey = ahash_setkey; <------><------>} <------>} else { <------><------>hash->setkey = ahash_hmac_setkey; <------><------>hash->init = ahash_hmac_init; <------><------>hash->update = ahash_hmac_update; <------><------>hash->final = ahash_hmac_final; <------><------>hash->finup = ahash_hmac_finup; <------><------>hash->digest = ahash_hmac_digest; <------>} <------>hash->export = ahash_export; <------>hash->import = ahash_import; <------>err = crypto_register_ahash(hash); <------>/* Mark alg as having been registered, if successful */ <------>if (err == 0) <------><------>driver_alg->registered = true; <------>pr_debug(" registered ahash %s\n", <------><------> hash->halg.base.cra_driver_name); <------>return err; } static int spu_register_aead(struct iproc_alg_s *driver_alg) { <------>struct aead_alg *aead = &driver_alg->alg.aead; <------>int err; <------>aead->base.cra_module = THIS_MODULE; <------>aead->base.cra_priority = aead_pri; <------>aead->base.cra_alignmask = 0; <------>aead->base.cra_ctxsize = sizeof(struct iproc_ctx_s); <------>aead->base.cra_flags |= CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY; <------>/* setkey set in alg initialization */ <------>aead->setauthsize = aead_setauthsize; <------>aead->encrypt = aead_encrypt; <------>aead->decrypt = aead_decrypt; <------>aead->init = aead_cra_init; <------>aead->exit = aead_cra_exit; <------>err = crypto_register_aead(aead); <------>/* Mark alg as having been registered, if successful */ <------>if (err == 0) <------><------>driver_alg->registered = true; <------>pr_debug(" registered aead %s\n", aead->base.cra_driver_name); <------>return err; } /* register crypto algorithms the device supports */ static int spu_algs_register(struct device *dev) { <------>int i, j; <------>int err; <------>for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { <------><------>switch (driver_algs[i].type) { <------><------>case CRYPTO_ALG_TYPE_SKCIPHER: <------><------><------>err = spu_register_skcipher(&driver_algs[i]); <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AHASH: <------><------><------>err = spu_register_ahash(&driver_algs[i]); <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AEAD: <------><------><------>err = spu_register_aead(&driver_algs[i]); <------><------><------>break; <------><------>default: <------><------><------>dev_err(dev, <------><------><------><------>"iproc-crypto: unknown alg type: %d", <------><------><------><------>driver_algs[i].type); <------><------><------>err = -EINVAL; <------><------>} <------><------>if (err) { <------><------><------>dev_err(dev, "alg registration failed with error %d\n", <------><------><------><------>err); <------><------><------>goto err_algs; <------><------>} <------>} <------>return 0; err_algs: <------>for (j = 0; j < i; j++) { <------><------>/* Skip any algorithm not registered */ <------><------>if (!driver_algs[j].registered) <------><------><------>continue; <------><------>switch (driver_algs[j].type) { <------><------>case CRYPTO_ALG_TYPE_SKCIPHER: <------><------><------>crypto_unregister_skcipher(&driver_algs[j].alg.skcipher); <------><------><------>driver_algs[j].registered = false; <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AHASH: <------><------><------>crypto_unregister_ahash(&driver_algs[j].alg.hash); <------><------><------>driver_algs[j].registered = false; <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AEAD: <------><------><------>crypto_unregister_aead(&driver_algs[j].alg.aead); <------><------><------>driver_algs[j].registered = false; <------><------><------>break; <------><------>} <------>} <------>return err; } /* ==================== Kernel Platform API ==================== */ static struct spu_type_subtype spum_ns2_types = { <------>SPU_TYPE_SPUM, SPU_SUBTYPE_SPUM_NS2 }; static struct spu_type_subtype spum_nsp_types = { <------>SPU_TYPE_SPUM, SPU_SUBTYPE_SPUM_NSP }; static struct spu_type_subtype spu2_types = { <------>SPU_TYPE_SPU2, SPU_SUBTYPE_SPU2_V1 }; static struct spu_type_subtype spu2_v2_types = { <------>SPU_TYPE_SPU2, SPU_SUBTYPE_SPU2_V2 }; static const struct of_device_id bcm_spu_dt_ids[] = { <------>{ <------><------>.compatible = "brcm,spum-crypto", <------><------>.data = &spum_ns2_types, <------>}, <------>{ <------><------>.compatible = "brcm,spum-nsp-crypto", <------><------>.data = &spum_nsp_types, <------>}, <------>{ <------><------>.compatible = "brcm,spu2-crypto", <------><------>.data = &spu2_types, <------>}, <------>{ <------><------>.compatible = "brcm,spu2-v2-crypto", <------><------>.data = &spu2_v2_types, <------>}, <------>{ /* sentinel */ } }; MODULE_DEVICE_TABLE(of, bcm_spu_dt_ids); static int spu_dt_read(struct platform_device *pdev) { <------>struct device *dev = &pdev->dev; <------>struct spu_hw *spu = &iproc_priv.spu; <------>struct resource *spu_ctrl_regs; <------>const struct spu_type_subtype *matched_spu_type; <------>struct device_node *dn = pdev->dev.of_node; <------>int err, i; <------>/* Count number of mailbox channels */ <------>spu->num_chan = of_count_phandle_with_args(dn, "mboxes", "#mbox-cells"); <------>matched_spu_type = of_device_get_match_data(dev); <------>if (!matched_spu_type) { <------><------>dev_err(dev, "Failed to match device\n"); <------><------>return -ENODEV; <------>} <------>spu->spu_type = matched_spu_type->type; <------>spu->spu_subtype = matched_spu_type->subtype; <------>for (i = 0; (i < MAX_SPUS) && ((spu_ctrl_regs = <------><------>platform_get_resource(pdev, IORESOURCE_MEM, i)) != NULL); i++) { <------><------>spu->reg_vbase[i] = devm_ioremap_resource(dev, spu_ctrl_regs); <------><------>if (IS_ERR(spu->reg_vbase[i])) { <------><------><------>err = PTR_ERR(spu->reg_vbase[i]); <------><------><------>dev_err(dev, "Failed to map registers: %d\n", <------><------><------><------>err); <------><------><------>spu->reg_vbase[i] = NULL; <------><------><------>return err; <------><------>} <------>} <------>spu->num_spu = i; <------>dev_dbg(dev, "Device has %d SPUs", spu->num_spu); <------>return 0; } static int bcm_spu_probe(struct platform_device *pdev) { <------>struct device *dev = &pdev->dev; <------>struct spu_hw *spu = &iproc_priv.spu; <------>int err; <------>iproc_priv.pdev = pdev; <------>platform_set_drvdata(iproc_priv.pdev, <------><------><------> &iproc_priv); <------>err = spu_dt_read(pdev); <------>if (err < 0) <------><------>goto failure; <------>err = spu_mb_init(dev); <------>if (err < 0) <------><------>goto failure; <------>if (spu->spu_type == SPU_TYPE_SPUM) <------><------>iproc_priv.bcm_hdr_len = 8; <------>else if (spu->spu_type == SPU_TYPE_SPU2) <------><------>iproc_priv.bcm_hdr_len = 0; <------>spu_functions_register(dev, spu->spu_type, spu->spu_subtype); <------>spu_counters_init(); <------>spu_setup_debugfs(); <------>err = spu_algs_register(dev); <------>if (err < 0) <------><------>goto fail_reg; <------>return 0; fail_reg: <------>spu_free_debugfs(); failure: <------>spu_mb_release(pdev); <------>dev_err(dev, "%s failed with error %d.\n", __func__, err); <------>return err; } static int bcm_spu_remove(struct platform_device *pdev) { <------>int i; <------>struct device *dev = &pdev->dev; <------>char *cdn; <------>for (i = 0; i < ARRAY_SIZE(driver_algs); i++) { <------><------>/* <------><------> * Not all algorithms were registered, depending on whether <------><------> * hardware is SPU or SPU2. So here we make sure to skip <------><------> * those algorithms that were not previously registered. <------><------> */ <------><------>if (!driver_algs[i].registered) <------><------><------>continue; <------><------>switch (driver_algs[i].type) { <------><------>case CRYPTO_ALG_TYPE_SKCIPHER: <------><------><------>crypto_unregister_skcipher(&driver_algs[i].alg.skcipher); <------><------><------>dev_dbg(dev, " unregistered cipher %s\n", <------><------><------><------>driver_algs[i].alg.skcipher.base.cra_driver_name); <------><------><------>driver_algs[i].registered = false; <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AHASH: <------><------><------>crypto_unregister_ahash(&driver_algs[i].alg.hash); <------><------><------>cdn = driver_algs[i].alg.hash.halg.base.cra_driver_name; <------><------><------>dev_dbg(dev, " unregistered hash %s\n", cdn); <------><------><------>driver_algs[i].registered = false; <------><------><------>break; <------><------>case CRYPTO_ALG_TYPE_AEAD: <------><------><------>crypto_unregister_aead(&driver_algs[i].alg.aead); <------><------><------>dev_dbg(dev, " unregistered aead %s\n", <------><------><------><------>driver_algs[i].alg.aead.base.cra_driver_name); <------><------><------>driver_algs[i].registered = false; <------><------><------>break; <------><------>} <------>} <------>spu_free_debugfs(); <------>spu_mb_release(pdev); <------>return 0; } /* ===== Kernel Module API ===== */ static struct platform_driver bcm_spu_pdriver = { <------>.driver = { <------><------> .name = "brcm-spu-crypto", <------><------> .of_match_table = of_match_ptr(bcm_spu_dt_ids), <------><------> }, <------>.probe = bcm_spu_probe, <------>.remove = bcm_spu_remove, }; module_platform_driver(bcm_spu_pdriver); MODULE_AUTHOR("Rob Rice <rob.rice@broadcom.com>"); MODULE_DESCRIPTION("Broadcom symmetric crypto offload driver"); MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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