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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 02:02:36 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 02:02:36 +0300
commit93e220a62da36f766b3188e76e234607e41488f9 (patch)
treed56d5609e4b290baa9b46a48b123ab9c4f23f073 /crypto/api.c
parent5628b8de1228436d47491c662dc521bc138a3d43 (diff)
parent0e03b8fd29363f2df44e2a7a176d486de550757a (diff)
downloadlinux-93e220a62da36f766b3188e76e234607e41488f9.tar.xz
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - hwrng core now credits for low-quality RNG devices. Algorithms: - Optimisations for neon aes on arm/arm64. - Add accelerated crc32_be on arm64. - Add ffdheXYZ(dh) templates. - Disallow hmac keys < 112 bits in FIPS mode. - Add AVX assembly implementation for sm3 on x86. Drivers: - Add missing local_bh_disable calls for crypto_engine callback. - Ensure BH is disabled in crypto_engine callback path. - Fix zero length DMA mappings in ccree. - Add synchronization between mailbox accesses in octeontx2. - Add Xilinx SHA3 driver. - Add support for the TDES IP available on sama7g5 SoC in atmel" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (137 commits) crypto: xilinx - Turn SHA into a tristate and allow COMPILE_TEST MAINTAINERS: update HPRE/SEC2/TRNG driver maintainers list crypto: dh - Remove the unused function dh_safe_prime_dh_alg() hwrng: nomadik - Change clk_disable to clk_disable_unprepare crypto: arm64 - cleanup comments crypto: qat - fix initialization of pfvf rts_map_msg structures crypto: qat - fix initialization of pfvf cap_msg structures crypto: qat - remove unneeded assignment crypto: qat - disable registration of algorithms crypto: hisilicon/qm - fix memset during queues clearing crypto: xilinx: prevent probing on non-xilinx hardware crypto: marvell/octeontx - Use swap() instead of open coding it crypto: ccree - Fix use after free in cc_cipher_exit() crypto: ccp - ccp_dmaengine_unregister release dma channels crypto: octeontx2 - fix missing unlock hwrng: cavium - fix NULL but dereferenced coccicheck error crypto: cavium/nitrox - don't cast parameter in bit operations crypto: vmx - add missing dependencies MAINTAINERS: Add maintainer for Xilinx ZynqMP SHA3 driver crypto: xilinx - Add Xilinx SHA3 driver ...
Diffstat (limited to 'crypto/api.c')
-rw-r--r--crypto/api.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 7ddfe946dd56..69508ae9345e 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -223,6 +223,8 @@ static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg)
else if (crypto_is_test_larval(larval) &&
!(alg->cra_flags & CRYPTO_ALG_TESTED))
alg = ERR_PTR(-EAGAIN);
+ else if (alg->cra_flags & CRYPTO_ALG_FIPS_INTERNAL)
+ alg = ERR_PTR(-EAGAIN);
else if (!crypto_mod_get(alg))
alg = ERR_PTR(-EAGAIN);
crypto_mod_put(&larval->alg);
@@ -233,6 +235,7 @@ static struct crypto_alg *crypto_larval_wait(struct crypto_alg *alg)
static struct crypto_alg *crypto_alg_lookup(const char *name, u32 type,
u32 mask)
{
+ const u32 fips = CRYPTO_ALG_FIPS_INTERNAL;
struct crypto_alg *alg;
u32 test = 0;
@@ -240,8 +243,20 @@ static struct crypto_alg *crypto_alg_lookup(const char *name, u32 type,
test |= CRYPTO_ALG_TESTED;
down_read(&crypto_alg_sem);
- alg = __crypto_alg_lookup(name, type | test, mask | test);
- if (!alg && test) {
+ alg = __crypto_alg_lookup(name, (type | test) & ~fips,
+ (mask | test) & ~fips);
+ if (alg) {
+ if (((type | mask) ^ fips) & fips)
+ mask |= fips;
+ mask &= fips;
+
+ if (!crypto_is_larval(alg) &&
+ ((type ^ alg->cra_flags) & mask)) {
+ /* Algorithm is disallowed in FIPS mode. */
+ crypto_mod_put(alg);
+ alg = ERR_PTR(-ENOENT);
+ }
+ } else if (test) {
alg = __crypto_alg_lookup(name, type, mask);
if (alg && !crypto_is_larval(alg)) {
/* Test failed */