From 128c66429247add5128c03dc1e144ca56f05a4e2 Mon Sep 17 00:00:00 2001 From: Navid Emamdoost Date: Thu, 19 Sep 2019 11:04:48 -0500 Subject: crypto: ccp - Release all allocated memory if sha type is invalid Release all allocated memory if sha type is invalid: In ccp_run_sha_cmd, if the type of sha is invalid, the allocated hmac_buf should be released. v2: fix the goto. Signed-off-by: Navid Emamdoost Acked-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-ops.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c index c8da8eb160da..422193690fd4 100644 --- a/drivers/crypto/ccp/ccp-ops.c +++ b/drivers/crypto/ccp/ccp-ops.c @@ -1777,8 +1777,9 @@ ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd) LSB_ITEM_SIZE); break; default: + kfree(hmac_buf); ret = -EINVAL; - goto e_ctx; + goto e_data; } memset(&hmac_cmd, 0, sizeof(hmac_cmd)); -- cgit From 1d55fdc85799372ab3b0d2a6928e73439f8149aa Mon Sep 17 00:00:00 2001 From: Ashish Kalra Date: Thu, 17 Oct 2019 22:35:11 +0000 Subject: crypto: ccp - Retry SEV INIT command in case of integrity check failure. SEV INIT command loads the SEV related persistent data from NVS and initializes the platform context. The firmware validates the persistent state. If validation fails, the firmware will reset the persisent state and return an integrity check failure status. At this point, a subsequent INIT command should succeed, so retry the command. The INIT command retry is only done during driver initialization. Additional enums along with SEV_RET_SECURE_DATA_INVALID are added to sev_ret_code to maintain continuity and relevance of enum values. Signed-off-by: Ashish Kalra Acked-by: David Rientjes Reviewed-by: Brijesh Singh Signed-off-by: Herbert Xu --- drivers/crypto/ccp/psp-dev.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 6b17d179ef8a..f9318d4482f2 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -1064,6 +1064,18 @@ void psp_pci_init(void) /* Initialize the platform */ rc = sev_platform_init(&error); + if (rc && (error == SEV_RET_SECURE_DATA_INVALID)) { + /* + * INIT command returned an integrity check failure + * status code, meaning that firmware load and + * validation of SEV related persistent data has + * failed and persistent state has been erased. + * Retrying INIT command here should succeed. + */ + dev_dbg(sp->dev, "SEV: retrying INIT command"); + rc = sev_platform_init(&error); + } + if (rc) { dev_err(sp->dev, "SEV: failed to INIT error %#x\n", error); return; -- cgit From 0d3c6781d8d80090509ebb0c72587e6c44da4736 Mon Sep 17 00:00:00 2001 From: "Hook, Gary" Date: Mon, 21 Oct 2019 13:44:37 +0000 Subject: crypto: ccp - Change a message to reflect status instead of failure If an AMD BIOS makes zero CCP queues available to the driver, the device is unavailable and therefore can't be activated. When this happens, report the status but don't report a (non-existent) failure. The CCP will be unactivated. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-dev-v5.c | 2 +- drivers/crypto/ccp/ccp-dev.c | 15 ++++++++++++--- 2 files changed, 13 insertions(+), 4 deletions(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c index 57eb53b8ac21..2937ba3afb7b 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -854,7 +854,7 @@ static int ccp5_init(struct ccp_device *ccp) if (ccp->cmd_q_count == 0) { dev_notice(dev, "no command queues available\n"); - ret = -EIO; + ret = 1; goto e_pool; } diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c index 73acf0fdb793..19ac509ed76e 100644 --- a/drivers/crypto/ccp/ccp-dev.c +++ b/drivers/crypto/ccp/ccp-dev.c @@ -641,18 +641,27 @@ int ccp_dev_init(struct sp_device *sp) ccp->vdata->setup(ccp); ret = ccp->vdata->perform->init(ccp); - if (ret) + if (ret) { + /* A positive number means that the device cannot be initialized, + * but no additional message is required. + */ + if (ret > 0) + goto e_quiet; + + /* An unexpected problem occurred, and should be reported in the log */ goto e_err; + } dev_notice(dev, "ccp enabled\n"); return 0; e_err: - sp->ccp_data = NULL; - dev_notice(dev, "ccp initialization failed\n"); +e_quiet: + sp->ccp_data = NULL; + return ret; } -- cgit From 03f008c52b76114b83483de2cf15ed36fc34930c Mon Sep 17 00:00:00 2001 From: "Hook, Gary" Date: Mon, 21 Oct 2019 13:44:44 +0000 Subject: crypto: ccp - Verify access to device registers before initializing Check early whether device registers can be accessed. Some BIOSes have a broken security policy that prevents access to the device registers, and return values from ioread() can be misinterpreted. If a read of a feature register returns a -1, we may not be able to access any device register, so report the problem and suggestion, and return. For the PSP, the feature register is checked. For the CCP, the queue register is checked. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-dev-v5.c | 12 ++++++++++++ drivers/crypto/ccp/psp-dev.c | 18 ++++++++++++++++-- 2 files changed, 28 insertions(+), 2 deletions(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c index 2937ba3afb7b..82ac4c14c04c 100644 --- a/drivers/crypto/ccp/ccp-dev-v5.c +++ b/drivers/crypto/ccp/ccp-dev-v5.c @@ -789,6 +789,18 @@ static int ccp5_init(struct ccp_device *ccp) /* Find available queues */ qmr = ioread32(ccp->io_regs + Q_MASK_REG); + /* + * Check for a access to the registers. If this read returns + * 0xffffffff, it's likely that the system is running a broken + * BIOS which disallows access to the device. Stop here and fail + * the initialization (but not the load, as the PSP could get + * properly initialized). + */ + if (qmr == 0xffffffff) { + dev_notice(dev, "ccp: unable to access the device: you might be running a broken BIOS.\n"); + return 1; + } + for (i = 0; (i < MAX_HW_QUEUES) && (ccp->cmd_q_count < ccp->max_q_count); i++) { if (!(qmr & (1 << i))) continue; diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index f9318d4482f2..c4da8d1a9abc 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -929,8 +929,22 @@ static int sev_misc_init(struct psp_device *psp) static int psp_check_sev_support(struct psp_device *psp) { - /* Check if device supports SEV feature */ - if (!(ioread32(psp->io_regs + psp->vdata->feature_reg) & 1)) { + unsigned int val = ioread32(psp->io_regs + psp->vdata->feature_reg); + + /* + * Check for a access to the registers. If this read returns + * 0xffffffff, it's likely that the system is running a broken + * BIOS which disallows access to the device. Stop here and + * fail the PSP initialization (but not the load, as the CCP + * could get properly initialized). + */ + if (val == 0xffffffff) { + dev_notice(psp->dev, "psp: unable to access the device: you might be running a broken BIOS.\n"); + return -ENODEV; + } + + if (!(val & 1)) { + /* Device does not support the SEV feature */ dev_dbg(psp->dev, "psp does not support SEV\n"); return -ENODEV; } -- cgit From 691505a803a7f223b2af621848d581259c61f77d Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Mon, 21 Oct 2019 11:29:49 -0400 Subject: crypto: ccp - fix uninitialized list head A NULL-pointer dereference was reported in fedora bz#1762199 while reshaping a raid6 array after adding a fifth drive to an existing array. [ 47.343549] md/raid:md0: raid level 6 active with 3 out of 5 devices, algorithm 2 [ 47.804017] md0: detected capacity change from 0 to 7885289422848 [ 47.822083] Unable to handle kernel read from unreadable memory at virtual address 0000000000000000 ... [ 47.940477] CPU: 1 PID: 14210 Comm: md0_raid6 Tainted: G W 5.2.18-200.fc30.aarch64 #1 [ 47.949594] Hardware name: AMD Overdrive/Supercharger/To be filled by O.E.M., BIOS ROD1002C 04/08/2016 [ 47.958886] pstate: 00400085 (nzcv daIf +PAN -UAO) [ 47.963668] pc : __list_del_entry_valid+0x2c/0xa8 [ 47.968366] lr : ccp_tx_submit+0x84/0x168 [ccp] [ 47.972882] sp : ffff00001369b970 [ 47.976184] x29: ffff00001369b970 x28: ffff00001369bdb8 [ 47.981483] x27: 00000000ffffffff x26: ffff8003b758af70 [ 47.986782] x25: ffff8003b758b2d8 x24: ffff8003e6245818 [ 47.992080] x23: 0000000000000000 x22: ffff8003e62450c0 [ 47.997379] x21: ffff8003dfd6add8 x20: 0000000000000003 [ 48.002678] x19: ffff8003e6245100 x18: 0000000000000000 [ 48.007976] x17: 0000000000000000 x16: 0000000000000000 [ 48.013274] x15: 0000000000000000 x14: 0000000000000000 [ 48.018572] x13: ffff7e000ef83a00 x12: 0000000000000001 [ 48.023870] x11: ffff000010eff998 x10: 00000000000019a0 [ 48.029169] x9 : 0000000000000000 x8 : ffff8003e6245180 [ 48.034467] x7 : 0000000000000000 x6 : 000000000000003f [ 48.039766] x5 : 0000000000000040 x4 : ffff8003e0145080 [ 48.045064] x3 : dead000000000200 x2 : 0000000000000000 [ 48.050362] x1 : 0000000000000000 x0 : ffff8003e62450c0 [ 48.055660] Call trace: [ 48.058095] __list_del_entry_valid+0x2c/0xa8 [ 48.062442] ccp_tx_submit+0x84/0x168 [ccp] [ 48.066615] async_tx_submit+0x224/0x368 [async_tx] [ 48.071480] async_trigger_callback+0x68/0xfc [async_tx] [ 48.076784] ops_run_biofill+0x178/0x1e8 [raid456] [ 48.081566] raid_run_ops+0x248/0x818 [raid456] [ 48.086086] handle_stripe+0x864/0x1208 [raid456] [ 48.090781] handle_active_stripes.isra.0+0xb0/0x278 [raid456] [ 48.096604] raid5d+0x378/0x618 [raid456] [ 48.100602] md_thread+0xa0/0x150 [ 48.103905] kthread+0x104/0x130 [ 48.107122] ret_from_fork+0x10/0x18 [ 48.110686] Code: d2804003 f2fbd5a3 eb03003f 54000320 (f9400021) [ 48.116766] ---[ end trace 23f390a527f7ad77 ]--- ccp_tx_submit is passed a dma_async_tx_descriptor which is contained in a ccp_dma_desc and adds it to a ccp channel's pending list: list_del(&desc->entry); list_add_tail(&desc->entry, &chan->pending); The problem is that desc->entry may be uninitialized in the async_trigger_callback path where the descriptor was gotten from ccp_prep_dma_interrupt which got it from ccp_alloc_dma_desc which doesn't initialize the desc->entry list head. So, just initialize the list head to avoid the problem. Cc: Reported-by: Sahaj Sarup Signed-off-by: Mark Salter Acked-by: Gary R Hook Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-dmaengine.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c index a54f9367a580..0770a83bf1a5 100644 --- a/drivers/crypto/ccp/ccp-dmaengine.c +++ b/drivers/crypto/ccp/ccp-dmaengine.c @@ -342,6 +342,7 @@ static struct ccp_dma_desc *ccp_alloc_dma_desc(struct ccp_dma_chan *chan, desc->tx_desc.flags = flags; desc->tx_desc.tx_submit = ccp_tx_submit; desc->ccp = chan->ccp; + INIT_LIST_HEAD(&desc->entry); INIT_LIST_HEAD(&desc->pending); INIT_LIST_HEAD(&desc->active); desc->status = DMA_IN_PROGRESS; -- cgit From b95bba5d01141ba919c99ea6fde206727f3b3eb4 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Fri, 25 Oct 2019 12:41:13 -0700 Subject: crypto: skcipher - rename the crypto_blkcipher module and kconfig option Now that the blkcipher algorithm type has been removed in favor of skcipher, rename the crypto_blkcipher kernel module to crypto_skcipher, and rename the config options accordingly: CONFIG_CRYPTO_BLKCIPHER => CONFIG_CRYPTO_SKCIPHER CONFIG_CRYPTO_BLKCIPHER2 => CONFIG_CRYPTO_SKCIPHER2 Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- drivers/crypto/ccp/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/Kconfig b/drivers/crypto/ccp/Kconfig index 8fec733f567f..e0a8bd15aa74 100644 --- a/drivers/crypto/ccp/Kconfig +++ b/drivers/crypto/ccp/Kconfig @@ -27,7 +27,7 @@ config CRYPTO_DEV_CCP_CRYPTO depends on CRYPTO_DEV_CCP_DD depends on CRYPTO_DEV_SP_CCP select CRYPTO_HASH - select CRYPTO_BLKCIPHER + select CRYPTO_SKCIPHER select CRYPTO_AUTHENC select CRYPTO_RSA select CRYPTO_LIB_AES -- cgit From be9fe620af63e76781d869f61d7e306bbe482415 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Sat, 9 Nov 2019 18:09:29 +0100 Subject: crypto: ccp - switch from ablkcipher to skcipher Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface") dated 20 august 2015 introduced the new skcipher API which is supposed to replace both blkcipher and ablkcipher. While all consumers of the API have been converted long ago, some producers of the ablkcipher remain, forcing us to keep the ablkcipher support routines alive, along with the matching code to expose [a]blkciphers via the skcipher API. So switch this driver to the skcipher API, allowing us to finally drop the ablkcipher code in the near future. Reviewed-by: Gary R Hook Tested-by: Gary R Hook Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- drivers/crypto/ccp/ccp-crypto-aes-galois.c | 7 +- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 94 ++++++++-------- drivers/crypto/ccp/ccp-crypto-aes.c | 169 +++++++++++++---------------- drivers/crypto/ccp/ccp-crypto-des3.c | 100 ++++++++--------- drivers/crypto/ccp/ccp-crypto-main.c | 14 +-- drivers/crypto/ccp/ccp-crypto.h | 13 ++- 6 files changed, 186 insertions(+), 211 deletions(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/ccp-crypto-aes-galois.c b/drivers/crypto/ccp/ccp-crypto-aes-galois.c index 94c1ad7eeddf..ff50ee80d223 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-galois.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-galois.c @@ -172,14 +172,12 @@ static struct aead_alg ccp_aes_gcm_defaults = { .ivsize = GCM_AES_IV_SIZE, .maxauthsize = AES_BLOCK_SIZE, .base = { - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | + .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct ccp_ctx), .cra_priority = CCP_CRA_PRIORITY, - .cra_type = &crypto_ablkcipher_type, .cra_exit = ccp_aes_gcm_cra_exit, .cra_module = THIS_MODULE, }, @@ -229,11 +227,10 @@ static int ccp_register_aes_aead(struct list_head *head, snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", def->driver_name); alg->base.cra_blocksize = def->blocksize; - alg->base.cra_ablkcipher.ivsize = def->ivsize; ret = crypto_register_aead(alg); if (ret) { - pr_err("%s ablkcipher algorithm registration error (%d)\n", + pr_err("%s aead algorithm registration error (%d)\n", alg->base.cra_name, ret); kfree(ccp_aead); return ret; diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c index 8e4a531f4f70..04b2517df955 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c @@ -24,7 +24,7 @@ struct ccp_aes_xts_def { const char *drv_name; }; -static struct ccp_aes_xts_def aes_xts_algs[] = { +static const struct ccp_aes_xts_def aes_xts_algs[] = { { .name = "xts(aes)", .drv_name = "xts-aes-ccp", @@ -61,26 +61,25 @@ static struct ccp_unit_size_map xts_unit_sizes[] = { static int ccp_aes_xts_complete(struct crypto_async_request *async_req, int ret) { - struct ablkcipher_request *req = ablkcipher_request_cast(async_req); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct skcipher_request *req = skcipher_request_cast(async_req); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); if (ret) return ret; - memcpy(req->info, rctx->iv, AES_BLOCK_SIZE); + memcpy(req->iv, rctx->iv, AES_BLOCK_SIZE); return 0; } -static int ccp_aes_xts_setkey(struct crypto_ablkcipher *tfm, const u8 *key, +static int ccp_aes_xts_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int key_len) { - struct crypto_tfm *xfm = crypto_ablkcipher_tfm(tfm); - struct ccp_ctx *ctx = crypto_tfm_ctx(xfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); unsigned int ccpversion = ccp_version(); int ret; - ret = xts_check_key(xfm, key, key_len); + ret = xts_verify_key(tfm, key, key_len); if (ret) return ret; @@ -102,11 +101,12 @@ static int ccp_aes_xts_setkey(struct crypto_ablkcipher *tfm, const u8 *key, return crypto_sync_skcipher_setkey(ctx->u.aes.tfm_skcipher, key, key_len); } -static int ccp_aes_xts_crypt(struct ablkcipher_request *req, +static int ccp_aes_xts_crypt(struct skcipher_request *req, unsigned int encrypt) { - struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); unsigned int ccpversion = ccp_version(); unsigned int fallback = 0; unsigned int unit; @@ -116,7 +116,7 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req, if (!ctx->u.aes.key_len) return -EINVAL; - if (!req->info) + if (!req->iv) return -EINVAL; /* Check conditions under which the CCP can fulfill a request. The @@ -127,7 +127,7 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req, */ unit_size = CCP_XTS_AES_UNIT_SIZE__LAST; for (unit = 0; unit < ARRAY_SIZE(xts_unit_sizes); unit++) { - if (req->nbytes == xts_unit_sizes[unit].size) { + if (req->cryptlen == xts_unit_sizes[unit].size) { unit_size = unit; break; } @@ -155,14 +155,14 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req, skcipher_request_set_callback(subreq, req->base.flags, NULL, NULL); skcipher_request_set_crypt(subreq, req->src, req->dst, - req->nbytes, req->info); + req->cryptlen, req->iv); ret = encrypt ? crypto_skcipher_encrypt(subreq) : crypto_skcipher_decrypt(subreq); skcipher_request_zero(subreq); return ret; } - memcpy(rctx->iv, req->info, AES_BLOCK_SIZE); + memcpy(rctx->iv, req->iv, AES_BLOCK_SIZE); sg_init_one(&rctx->iv_sg, rctx->iv, AES_BLOCK_SIZE); memset(&rctx->cmd, 0, sizeof(rctx->cmd)); @@ -177,7 +177,7 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req, rctx->cmd.u.xts.iv = &rctx->iv_sg; rctx->cmd.u.xts.iv_len = AES_BLOCK_SIZE; rctx->cmd.u.xts.src = req->src; - rctx->cmd.u.xts.src_len = req->nbytes; + rctx->cmd.u.xts.src_len = req->cryptlen; rctx->cmd.u.xts.dst = req->dst; ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd); @@ -185,19 +185,19 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req, return ret; } -static int ccp_aes_xts_encrypt(struct ablkcipher_request *req) +static int ccp_aes_xts_encrypt(struct skcipher_request *req) { return ccp_aes_xts_crypt(req, 1); } -static int ccp_aes_xts_decrypt(struct ablkcipher_request *req) +static int ccp_aes_xts_decrypt(struct skcipher_request *req) { return ccp_aes_xts_crypt(req, 0); } -static int ccp_aes_xts_cra_init(struct crypto_tfm *tfm) +static int ccp_aes_xts_init_tfm(struct crypto_skcipher *tfm) { - struct ccp_ctx *ctx = crypto_tfm_ctx(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); struct crypto_sync_skcipher *fallback_tfm; ctx->complete = ccp_aes_xts_complete; @@ -212,14 +212,14 @@ static int ccp_aes_xts_cra_init(struct crypto_tfm *tfm) } ctx->u.aes.tfm_skcipher = fallback_tfm; - tfm->crt_ablkcipher.reqsize = sizeof(struct ccp_aes_req_ctx); + crypto_skcipher_set_reqsize(tfm, sizeof(struct ccp_aes_req_ctx)); return 0; } -static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm) +static void ccp_aes_xts_exit_tfm(struct crypto_skcipher *tfm) { - struct ccp_ctx *ctx = crypto_tfm_ctx(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); crypto_free_sync_skcipher(ctx->u.aes.tfm_skcipher); } @@ -227,8 +227,8 @@ static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm) static int ccp_register_aes_xts_alg(struct list_head *head, const struct ccp_aes_xts_def *def) { - struct ccp_crypto_ablkcipher_alg *ccp_alg; - struct crypto_alg *alg; + struct ccp_crypto_skcipher_alg *ccp_alg; + struct skcipher_alg *alg; int ret; ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL); @@ -239,30 +239,30 @@ static int ccp_register_aes_xts_alg(struct list_head *head, alg = &ccp_alg->alg; - snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); - snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); + snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", def->drv_name); - alg->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY | - CRYPTO_ALG_NEED_FALLBACK; - alg->cra_blocksize = AES_BLOCK_SIZE; - alg->cra_ctxsize = sizeof(struct ccp_ctx); - alg->cra_priority = CCP_CRA_PRIORITY; - alg->cra_type = &crypto_ablkcipher_type; - alg->cra_ablkcipher.setkey = ccp_aes_xts_setkey; - alg->cra_ablkcipher.encrypt = ccp_aes_xts_encrypt; - alg->cra_ablkcipher.decrypt = ccp_aes_xts_decrypt; - alg->cra_ablkcipher.min_keysize = AES_MIN_KEY_SIZE * 2; - alg->cra_ablkcipher.max_keysize = AES_MAX_KEY_SIZE * 2; - alg->cra_ablkcipher.ivsize = AES_BLOCK_SIZE; - alg->cra_init = ccp_aes_xts_cra_init; - alg->cra_exit = ccp_aes_xts_cra_exit; - alg->cra_module = THIS_MODULE; - - ret = crypto_register_alg(alg); + alg->base.cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY | + CRYPTO_ALG_NEED_FALLBACK; + alg->base.cra_blocksize = AES_BLOCK_SIZE; + alg->base.cra_ctxsize = sizeof(struct ccp_ctx); + alg->base.cra_priority = CCP_CRA_PRIORITY; + alg->base.cra_module = THIS_MODULE; + + alg->setkey = ccp_aes_xts_setkey; + alg->encrypt = ccp_aes_xts_encrypt; + alg->decrypt = ccp_aes_xts_decrypt; + alg->min_keysize = AES_MIN_KEY_SIZE * 2; + alg->max_keysize = AES_MAX_KEY_SIZE * 2; + alg->ivsize = AES_BLOCK_SIZE; + alg->init = ccp_aes_xts_init_tfm; + alg->exit = ccp_aes_xts_exit_tfm; + + ret = crypto_register_skcipher(alg); if (ret) { - pr_err("%s ablkcipher algorithm registration error (%d)\n", - alg->cra_name, ret); + pr_err("%s skcipher algorithm registration error (%d)\n", + alg->base.cra_name, ret); kfree(ccp_alg); return ret; } diff --git a/drivers/crypto/ccp/ccp-crypto-aes.c b/drivers/crypto/ccp/ccp-crypto-aes.c index 58c6dddfc5e1..33328a153225 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes.c +++ b/drivers/crypto/ccp/ccp-crypto-aes.c @@ -21,25 +21,24 @@ static int ccp_aes_complete(struct crypto_async_request *async_req, int ret) { - struct ablkcipher_request *req = ablkcipher_request_cast(async_req); + struct skcipher_request *req = skcipher_request_cast(async_req); struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); if (ret) return ret; if (ctx->u.aes.mode != CCP_AES_MODE_ECB) - memcpy(req->info, rctx->iv, AES_BLOCK_SIZE); + memcpy(req->iv, rctx->iv, AES_BLOCK_SIZE); return 0; } -static int ccp_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, +static int ccp_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int key_len) { - struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ablkcipher_tfm(tfm)); - struct ccp_crypto_ablkcipher_alg *alg = - ccp_crypto_ablkcipher_alg(crypto_ablkcipher_tfm(tfm)); + struct ccp_crypto_skcipher_alg *alg = ccp_crypto_skcipher_alg(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); switch (key_len) { case AES_KEYSIZE_128: @@ -52,7 +51,7 @@ static int ccp_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, ctx->u.aes.type = CCP_AES_TYPE_256; break; default: - crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); + crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); return -EINVAL; } ctx->u.aes.mode = alg->mode; @@ -64,10 +63,11 @@ static int ccp_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, return 0; } -static int ccp_aes_crypt(struct ablkcipher_request *req, bool encrypt) +static int ccp_aes_crypt(struct skcipher_request *req, bool encrypt) { - struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); struct scatterlist *iv_sg = NULL; unsigned int iv_len = 0; int ret; @@ -77,14 +77,14 @@ static int ccp_aes_crypt(struct ablkcipher_request *req, bool encrypt) if (((ctx->u.aes.mode == CCP_AES_MODE_ECB) || (ctx->u.aes.mode == CCP_AES_MODE_CBC)) && - (req->nbytes & (AES_BLOCK_SIZE - 1))) + (req->cryptlen & (AES_BLOCK_SIZE - 1))) return -EINVAL; if (ctx->u.aes.mode != CCP_AES_MODE_ECB) { - if (!req->info) + if (!req->iv) return -EINVAL; - memcpy(rctx->iv, req->info, AES_BLOCK_SIZE); + memcpy(rctx->iv, req->iv, AES_BLOCK_SIZE); iv_sg = &rctx->iv_sg; iv_len = AES_BLOCK_SIZE; sg_init_one(iv_sg, rctx->iv, iv_len); @@ -102,7 +102,7 @@ static int ccp_aes_crypt(struct ablkcipher_request *req, bool encrypt) rctx->cmd.u.aes.iv = iv_sg; rctx->cmd.u.aes.iv_len = iv_len; rctx->cmd.u.aes.src = req->src; - rctx->cmd.u.aes.src_len = req->nbytes; + rctx->cmd.u.aes.src_len = req->cryptlen; rctx->cmd.u.aes.dst = req->dst; ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd); @@ -110,48 +110,44 @@ static int ccp_aes_crypt(struct ablkcipher_request *req, bool encrypt) return ret; } -static int ccp_aes_encrypt(struct ablkcipher_request *req) +static int ccp_aes_encrypt(struct skcipher_request *req) { return ccp_aes_crypt(req, true); } -static int ccp_aes_decrypt(struct ablkcipher_request *req) +static int ccp_aes_decrypt(struct skcipher_request *req) { return ccp_aes_crypt(req, false); } -static int ccp_aes_cra_init(struct crypto_tfm *tfm) +static int ccp_aes_init_tfm(struct crypto_skcipher *tfm) { - struct ccp_ctx *ctx = crypto_tfm_ctx(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); ctx->complete = ccp_aes_complete; ctx->u.aes.key_len = 0; - tfm->crt_ablkcipher.reqsize = sizeof(struct ccp_aes_req_ctx); + crypto_skcipher_set_reqsize(tfm, sizeof(struct ccp_aes_req_ctx)); return 0; } -static void ccp_aes_cra_exit(struct crypto_tfm *tfm) -{ -} - static int ccp_aes_rfc3686_complete(struct crypto_async_request *async_req, int ret) { - struct ablkcipher_request *req = ablkcipher_request_cast(async_req); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct skcipher_request *req = skcipher_request_cast(async_req); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); /* Restore the original pointer */ - req->info = rctx->rfc3686_info; + req->iv = rctx->rfc3686_info; return ccp_aes_complete(async_req, ret); } -static int ccp_aes_rfc3686_setkey(struct crypto_ablkcipher *tfm, const u8 *key, +static int ccp_aes_rfc3686_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int key_len) { - struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ablkcipher_tfm(tfm)); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); if (key_len < CTR_RFC3686_NONCE_SIZE) return -EINVAL; @@ -162,10 +158,11 @@ static int ccp_aes_rfc3686_setkey(struct crypto_ablkcipher *tfm, const u8 *key, return ccp_aes_setkey(tfm, key, key_len); } -static int ccp_aes_rfc3686_crypt(struct ablkcipher_request *req, bool encrypt) +static int ccp_aes_rfc3686_crypt(struct skcipher_request *req, bool encrypt) { - struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_aes_req_ctx *rctx = ablkcipher_request_ctx(req); + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); + struct ccp_aes_req_ctx *rctx = skcipher_request_ctx(req); u8 *iv; /* Initialize the CTR block */ @@ -173,84 +170,72 @@ static int ccp_aes_rfc3686_crypt(struct ablkcipher_request *req, bool encrypt) memcpy(iv, ctx->u.aes.nonce, CTR_RFC3686_NONCE_SIZE); iv += CTR_RFC3686_NONCE_SIZE; - memcpy(iv, req->info, CTR_RFC3686_IV_SIZE); + memcpy(iv, req->iv, CTR_RFC3686_IV_SIZE); iv += CTR_RFC3686_IV_SIZE; *(__be32 *)iv = cpu_to_be32(1); /* Point to the new IV */ - rctx->rfc3686_info = req->info; - req->info = rctx->rfc3686_iv; + rctx->rfc3686_info = req->iv; + req->iv = rctx->rfc3686_iv; return ccp_aes_crypt(req, encrypt); } -static int ccp_aes_rfc3686_encrypt(struct ablkcipher_request *req) +static int ccp_aes_rfc3686_encrypt(struct skcipher_request *req) { return ccp_aes_rfc3686_crypt(req, true); } -static int ccp_aes_rfc3686_decrypt(struct ablkcipher_request *req) +static int ccp_aes_rfc3686_decrypt(struct skcipher_request *req) { return ccp_aes_rfc3686_crypt(req, false); } -static int ccp_aes_rfc3686_cra_init(struct crypto_tfm *tfm) +static int ccp_aes_rfc3686_init_tfm(struct crypto_skcipher *tfm) { - struct ccp_ctx *ctx = crypto_tfm_ctx(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); ctx->complete = ccp_aes_rfc3686_complete; ctx->u.aes.key_len = 0; - tfm->crt_ablkcipher.reqsize = sizeof(struct ccp_aes_req_ctx); + crypto_skcipher_set_reqsize(tfm, sizeof(struct ccp_aes_req_ctx)); return 0; } -static void ccp_aes_rfc3686_cra_exit(struct crypto_tfm *tfm) -{ -} - -static struct crypto_alg ccp_aes_defaults = { - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY | - CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct ccp_ctx), - .cra_priority = CCP_CRA_PRIORITY, - .cra_type = &crypto_ablkcipher_type, - .cra_init = ccp_aes_cra_init, - .cra_exit = ccp_aes_cra_exit, - .cra_module = THIS_MODULE, - .cra_ablkcipher = { - .setkey = ccp_aes_setkey, - .encrypt = ccp_aes_encrypt, - .decrypt = ccp_aes_decrypt, - .min_keysize = AES_MIN_KEY_SIZE, - .max_keysize = AES_MAX_KEY_SIZE, - }, +static const struct skcipher_alg ccp_aes_defaults = { + .setkey = ccp_aes_setkey, + .encrypt = ccp_aes_encrypt, + .decrypt = ccp_aes_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .init = ccp_aes_init_tfm, + + .base.cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY | + CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct ccp_ctx), + .base.cra_priority = CCP_CRA_PRIORITY, + .base.cra_module = THIS_MODULE, }; -static struct crypto_alg ccp_aes_rfc3686_defaults = { - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY | - CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = CTR_RFC3686_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct ccp_ctx), - .cra_priority = CCP_CRA_PRIORITY, - .cra_type = &crypto_ablkcipher_type, - .cra_init = ccp_aes_rfc3686_cra_init, - .cra_exit = ccp_aes_rfc3686_cra_exit, - .cra_module = THIS_MODULE, - .cra_ablkcipher = { - .setkey = ccp_aes_rfc3686_setkey, - .encrypt = ccp_aes_rfc3686_encrypt, - .decrypt = ccp_aes_rfc3686_decrypt, - .min_keysize = AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, - .max_keysize = AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, - }, +static const struct skcipher_alg ccp_aes_rfc3686_defaults = { + .setkey = ccp_aes_rfc3686_setkey, + .encrypt = ccp_aes_rfc3686_encrypt, + .decrypt = ccp_aes_rfc3686_decrypt, + .min_keysize = AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, + .max_keysize = AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE, + .init = ccp_aes_rfc3686_init_tfm, + + .base.cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY | + CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = CTR_RFC3686_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct ccp_ctx), + .base.cra_priority = CCP_CRA_PRIORITY, + .base.cra_module = THIS_MODULE, }; struct ccp_aes_def { @@ -260,7 +245,7 @@ struct ccp_aes_def { const char *driver_name; unsigned int blocksize; unsigned int ivsize; - struct crypto_alg *alg_defaults; + const struct skcipher_alg *alg_defaults; }; static struct ccp_aes_def aes_algs[] = { @@ -323,8 +308,8 @@ static struct ccp_aes_def aes_algs[] = { static int ccp_register_aes_alg(struct list_head *head, const struct ccp_aes_def *def) { - struct ccp_crypto_ablkcipher_alg *ccp_alg; - struct crypto_alg *alg; + struct ccp_crypto_skcipher_alg *ccp_alg; + struct skcipher_alg *alg; int ret; ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL); @@ -338,16 +323,16 @@ static int ccp_register_aes_alg(struct list_head *head, /* Copy the defaults and override as necessary */ alg = &ccp_alg->alg; *alg = *def->alg_defaults; - snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); - snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); + snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", def->driver_name); - alg->cra_blocksize = def->blocksize; - alg->cra_ablkcipher.ivsize = def->ivsize; + alg->base.cra_blocksize = def->blocksize; + alg->ivsize = def->ivsize; - ret = crypto_register_alg(alg); + ret = crypto_register_skcipher(alg); if (ret) { - pr_err("%s ablkcipher algorithm registration error (%d)\n", - alg->cra_name, ret); + pr_err("%s skcipher algorithm registration error (%d)\n", + alg->base.cra_name, ret); kfree(ccp_alg); return ret; } diff --git a/drivers/crypto/ccp/ccp-crypto-des3.c b/drivers/crypto/ccp/ccp-crypto-des3.c index d2c49b2f0323..9c129defdb50 100644 --- a/drivers/crypto/ccp/ccp-crypto-des3.c +++ b/drivers/crypto/ccp/ccp-crypto-des3.c @@ -20,28 +20,27 @@ static int ccp_des3_complete(struct crypto_async_request *async_req, int ret) { - struct ablkcipher_request *req = ablkcipher_request_cast(async_req); + struct skcipher_request *req = skcipher_request_cast(async_req); struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_des3_req_ctx *rctx = ablkcipher_request_ctx(req); + struct ccp_des3_req_ctx *rctx = skcipher_request_ctx(req); if (ret) return ret; if (ctx->u.des3.mode != CCP_DES3_MODE_ECB) - memcpy(req->info, rctx->iv, DES3_EDE_BLOCK_SIZE); + memcpy(req->iv, rctx->iv, DES3_EDE_BLOCK_SIZE); return 0; } -static int ccp_des3_setkey(struct crypto_ablkcipher *tfm, const u8 *key, +static int ccp_des3_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int key_len) { - struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ablkcipher_tfm(tfm)); - struct ccp_crypto_ablkcipher_alg *alg = - ccp_crypto_ablkcipher_alg(crypto_ablkcipher_tfm(tfm)); + struct ccp_crypto_skcipher_alg *alg = ccp_crypto_skcipher_alg(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); int err; - err = verify_ablkcipher_des3_key(tfm, key); + err = verify_skcipher_des3_key(tfm, key); if (err) return err; @@ -58,10 +57,11 @@ static int ccp_des3_setkey(struct crypto_ablkcipher *tfm, const u8 *key, return 0; } -static int ccp_des3_crypt(struct ablkcipher_request *req, bool encrypt) +static int ccp_des3_crypt(struct skcipher_request *req, bool encrypt) { - struct ccp_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - struct ccp_des3_req_ctx *rctx = ablkcipher_request_ctx(req); + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); + struct ccp_des3_req_ctx *rctx = skcipher_request_ctx(req); struct scatterlist *iv_sg = NULL; unsigned int iv_len = 0; int ret; @@ -71,14 +71,14 @@ static int ccp_des3_crypt(struct ablkcipher_request *req, bool encrypt) if (((ctx->u.des3.mode == CCP_DES3_MODE_ECB) || (ctx->u.des3.mode == CCP_DES3_MODE_CBC)) && - (req->nbytes & (DES3_EDE_BLOCK_SIZE - 1))) + (req->cryptlen & (DES3_EDE_BLOCK_SIZE - 1))) return -EINVAL; if (ctx->u.des3.mode != CCP_DES3_MODE_ECB) { - if (!req->info) + if (!req->iv) return -EINVAL; - memcpy(rctx->iv, req->info, DES3_EDE_BLOCK_SIZE); + memcpy(rctx->iv, req->iv, DES3_EDE_BLOCK_SIZE); iv_sg = &rctx->iv_sg; iv_len = DES3_EDE_BLOCK_SIZE; sg_init_one(iv_sg, rctx->iv, iv_len); @@ -97,7 +97,7 @@ static int ccp_des3_crypt(struct ablkcipher_request *req, bool encrypt) rctx->cmd.u.des3.iv = iv_sg; rctx->cmd.u.des3.iv_len = iv_len; rctx->cmd.u.des3.src = req->src; - rctx->cmd.u.des3.src_len = req->nbytes; + rctx->cmd.u.des3.src_len = req->cryptlen; rctx->cmd.u.des3.dst = req->dst; ret = ccp_crypto_enqueue_request(&req->base, &rctx->cmd); @@ -105,51 +105,43 @@ static int ccp_des3_crypt(struct ablkcipher_request *req, bool encrypt) return ret; } -static int ccp_des3_encrypt(struct ablkcipher_request *req) +static int ccp_des3_encrypt(struct skcipher_request *req) { return ccp_des3_crypt(req, true); } -static int ccp_des3_decrypt(struct ablkcipher_request *req) +static int ccp_des3_decrypt(struct skcipher_request *req) { return ccp_des3_crypt(req, false); } -static int ccp_des3_cra_init(struct crypto_tfm *tfm) +static int ccp_des3_init_tfm(struct crypto_skcipher *tfm) { - struct ccp_ctx *ctx = crypto_tfm_ctx(tfm); + struct ccp_ctx *ctx = crypto_skcipher_ctx(tfm); ctx->complete = ccp_des3_complete; ctx->u.des3.key_len = 0; - tfm->crt_ablkcipher.reqsize = sizeof(struct ccp_des3_req_ctx); + crypto_skcipher_set_reqsize(tfm, sizeof(struct ccp_des3_req_ctx)); return 0; } -static void ccp_des3_cra_exit(struct crypto_tfm *tfm) -{ -} - -static struct crypto_alg ccp_des3_defaults = { - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY | - CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct ccp_ctx), - .cra_priority = CCP_CRA_PRIORITY, - .cra_type = &crypto_ablkcipher_type, - .cra_init = ccp_des3_cra_init, - .cra_exit = ccp_des3_cra_exit, - .cra_module = THIS_MODULE, - .cra_ablkcipher = { - .setkey = ccp_des3_setkey, - .encrypt = ccp_des3_encrypt, - .decrypt = ccp_des3_decrypt, - .min_keysize = DES3_EDE_KEY_SIZE, - .max_keysize = DES3_EDE_KEY_SIZE, - }, +static const struct skcipher_alg ccp_des3_defaults = { + .setkey = ccp_des3_setkey, + .encrypt = ccp_des3_encrypt, + .decrypt = ccp_des3_decrypt, + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .init = ccp_des3_init_tfm, + + .base.cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY | + CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = DES3_EDE_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct ccp_ctx), + .base.cra_priority = CCP_CRA_PRIORITY, + .base.cra_module = THIS_MODULE, }; struct ccp_des3_def { @@ -159,10 +151,10 @@ struct ccp_des3_def { const char *driver_name; unsigned int blocksize; unsigned int ivsize; - struct crypto_alg *alg_defaults; + const struct skcipher_alg *alg_defaults; }; -static struct ccp_des3_def des3_algs[] = { +static const struct ccp_des3_def des3_algs[] = { { .mode = CCP_DES3_MODE_ECB, .version = CCP_VERSION(5, 0), @@ -186,8 +178,8 @@ static struct ccp_des3_def des3_algs[] = { static int ccp_register_des3_alg(struct list_head *head, const struct ccp_des3_def *def) { - struct ccp_crypto_ablkcipher_alg *ccp_alg; - struct crypto_alg *alg; + struct ccp_crypto_skcipher_alg *ccp_alg; + struct skcipher_alg *alg; int ret; ccp_alg = kzalloc(sizeof(*ccp_alg), GFP_KERNEL); @@ -201,16 +193,16 @@ static int ccp_register_des3_alg(struct list_head *head, /* Copy the defaults and override as necessary */ alg = &ccp_alg->alg; *alg = *def->alg_defaults; - snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); - snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name); + snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", def->driver_name); - alg->cra_blocksize = def->blocksize; - alg->cra_ablkcipher.ivsize = def->ivsize; + alg->base.cra_blocksize = def->blocksize; + alg->ivsize = def->ivsize; - ret = crypto_register_alg(alg); + ret = crypto_register_skcipher(alg); if (ret) { - pr_err("%s ablkcipher algorithm registration error (%d)\n", - alg->cra_name, ret); + pr_err("%s skcipher algorithm registration error (%d)\n", + alg->base.cra_name, ret); kfree(ccp_alg); return ret; } diff --git a/drivers/crypto/ccp/ccp-crypto-main.c b/drivers/crypto/ccp/ccp-crypto-main.c index 8ee4cb45a3f3..88275b4867ea 100644 --- a/drivers/crypto/ccp/ccp-crypto-main.c +++ b/drivers/crypto/ccp/ccp-crypto-main.c @@ -41,7 +41,7 @@ MODULE_PARM_DESC(rsa_disable, "Disable use of RSA - any non-zero value"); /* List heads for the supported algorithms */ static LIST_HEAD(hash_algs); -static LIST_HEAD(cipher_algs); +static LIST_HEAD(skcipher_algs); static LIST_HEAD(aead_algs); static LIST_HEAD(akcipher_algs); @@ -330,7 +330,7 @@ static int ccp_register_algs(void) int ret; if (!aes_disable) { - ret = ccp_register_aes_algs(&cipher_algs); + ret = ccp_register_aes_algs(&skcipher_algs); if (ret) return ret; @@ -338,7 +338,7 @@ static int ccp_register_algs(void) if (ret) return ret; - ret = ccp_register_aes_xts_algs(&cipher_algs); + ret = ccp_register_aes_xts_algs(&skcipher_algs); if (ret) return ret; @@ -348,7 +348,7 @@ static int ccp_register_algs(void) } if (!des3_disable) { - ret = ccp_register_des3_algs(&cipher_algs); + ret = ccp_register_des3_algs(&skcipher_algs); if (ret) return ret; } @@ -371,7 +371,7 @@ static int ccp_register_algs(void) static void ccp_unregister_algs(void) { struct ccp_crypto_ahash_alg *ahash_alg, *ahash_tmp; - struct ccp_crypto_ablkcipher_alg *ablk_alg, *ablk_tmp; + struct ccp_crypto_skcipher_alg *ablk_alg, *ablk_tmp; struct ccp_crypto_aead *aead_alg, *aead_tmp; struct ccp_crypto_akcipher_alg *akc_alg, *akc_tmp; @@ -381,8 +381,8 @@ static void ccp_unregister_algs(void) kfree(ahash_alg); } - list_for_each_entry_safe(ablk_alg, ablk_tmp, &cipher_algs, entry) { - crypto_unregister_alg(&ablk_alg->alg); + list_for_each_entry_safe(ablk_alg, ablk_tmp, &skcipher_algs, entry) { + crypto_unregister_skcipher(&ablk_alg->alg); list_del(&ablk_alg->entry); kfree(ablk_alg); } diff --git a/drivers/crypto/ccp/ccp-crypto.h b/drivers/crypto/ccp/ccp-crypto.h index 9015b5da6ba3..90a009e6b5c1 100644 --- a/drivers/crypto/ccp/ccp-crypto.h +++ b/drivers/crypto/ccp/ccp-crypto.h @@ -21,6 +21,7 @@ #include #include #include +#include #include /* We want the module name in front of our messages */ @@ -31,12 +32,12 @@ #define CCP_CRA_PRIORITY 300 -struct ccp_crypto_ablkcipher_alg { +struct ccp_crypto_skcipher_alg { struct list_head entry; u32 mode; - struct crypto_alg alg; + struct skcipher_alg alg; }; struct ccp_crypto_aead { @@ -66,12 +67,12 @@ struct ccp_crypto_akcipher_alg { struct akcipher_alg alg; }; -static inline struct ccp_crypto_ablkcipher_alg * - ccp_crypto_ablkcipher_alg(struct crypto_tfm *tfm) +static inline struct ccp_crypto_skcipher_alg * + ccp_crypto_skcipher_alg(struct crypto_skcipher *tfm) { - struct crypto_alg *alg = tfm->__crt_alg; + struct skcipher_alg *alg = crypto_skcipher_alg(tfm); - return container_of(alg, struct ccp_crypto_ablkcipher_alg, alg); + return container_of(alg, struct ccp_crypto_skcipher_alg, alg); } static inline struct ccp_crypto_ahash_alg * -- cgit From ec310caf13b5505c268cfa526b7b28152a879d1e Mon Sep 17 00:00:00 2001 From: Brijesh Singh Date: Tue, 12 Nov 2019 13:58:34 -0600 Subject: crypto: ccp - add SEV command privilege separation Currently, there is no privilege separation of the SEV command; you can run them all or none of them. This is less than ideal because it means that a compromise of the code which launches VMs could make permanent change to the SEV certifcate chain which will affect others. These commands are required to attest the VM environment: - SEV_PDH_CERT_EXPORT - SEV_PLATFORM_STATUS - SEV_GET_{ID,ID2} These commands manage the SEV certificate chain: - SEV_PEK_CERR_IMPORT - SEV_FACTORY_RESET - SEV_PEK_GEN - SEV_PEK_CSR - SEV_PDH_GEN Lets add the CAP_SYS_ADMIN check for the group of the commands which alters the SEV certificate chain to provide some level of privilege separation. Cc: Herbert Xu Cc: Gary Hook Cc: Erdem Aktas Cc: Tom Lendacky Tested-by: David Rientjes Co-developed-by: David Rientjes Signed-off-by: David Rientjes Signed-off-by: Brijesh Singh Signed-off-by: Herbert Xu --- drivers/crypto/ccp/psp-dev.c | 29 ++++++++++++++++++++++------- drivers/crypto/ccp/psp-dev.h | 1 + 2 files changed, 23 insertions(+), 7 deletions(-) (limited to 'drivers/crypto/ccp') diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index c4da8d1a9abc..5ff842c03a70 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -294,6 +294,9 @@ static int sev_ioctl_do_reset(struct sev_issue_cmd *argp) { int state, rc; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + /* * The SEV spec requires that FACTORY_RESET must be issued in * UNINIT state. Before we go further lets check if any guest is @@ -338,6 +341,9 @@ static int sev_ioctl_do_pek_pdh_gen(int cmd, struct sev_issue_cmd *argp) { int rc; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (psp_master->sev_state == SEV_STATE_UNINIT) { rc = __sev_platform_init_locked(&argp->error); if (rc) @@ -354,6 +360,9 @@ static int sev_ioctl_do_pek_csr(struct sev_issue_cmd *argp) void *blob = NULL; int ret; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (copy_from_user(&input, (void __user *)argp->data, sizeof(input))) return -EFAULT; @@ -540,6 +549,9 @@ static int sev_ioctl_do_pek_import(struct sev_issue_cmd *argp) void *pek_blob, *oca_blob; int ret; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + if (copy_from_user(&input, (void __user *)argp->data, sizeof(input))) return -EFAULT; @@ -695,6 +707,16 @@ static int sev_ioctl_do_pdh_export(struct sev_issue_cmd *argp) struct sev_data_pdh_cert_export *data; int ret; + /* If platform is not in INIT state then transition it to INIT. */ + if (psp_master->sev_state != SEV_STATE_INIT) { + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + ret = __sev_platform_init_locked(&argp->error); + if (ret) + return ret; + } + if (copy_from_user(&input, (void __user *)argp->data, sizeof(input))) return -EFAULT; @@ -741,13 +763,6 @@ static int sev_ioctl_do_pdh_export(struct sev_issue_cmd *argp) data->cert_chain_len = input.cert_chain_len; cmd: - /* If platform is not in INIT state then transition it to INIT. */ - if (psp_master->sev_state != SEV_STATE_INIT) { - ret = __sev_platform_init_locked(&argp->error); - if (ret) - goto e_free_cert; - } - ret = __sev_do_cmd_locked(SEV_CMD_PDH_CERT_EXPORT, data, &argp->error); /* If we query the length, FW responded with expected data. */ diff --git a/drivers/crypto/ccp/psp-dev.h b/drivers/crypto/ccp/psp-dev.h index 82a084f02990..dd516b35ba86 100644 --- a/drivers/crypto/ccp/psp-dev.h +++ b/drivers/crypto/ccp/psp-dev.h @@ -23,6 +23,7 @@ #include #include #include +#include #include "sp-dev.h" -- cgit