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| author | Eneas U de Queiroz <cote2004-github@yahoo.com> | 2019-02-27 21:39:18 +0000 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2019-03-09 18:55:07 +0100 |
| commit | d971ae51a51cb1b145b6fbbf7d1327a99be257b1 (patch) | |
| tree | 767db48749564fe5ca80e00fca3461f80f8b7af7 | |
| parent | c3425be0820b215f44ebf831a0b794e1b70441ad (diff) | |
| download | upstream-d971ae51a51cb1b145b6fbbf7d1327a99be257b1.tar.gz upstream-d971ae51a51cb1b145b6fbbf7d1327a99be257b1.tar.bz2 upstream-d971ae51a51cb1b145b6fbbf7d1327a99be257b1.zip | |
openssl: backport devcrypto changes from master
The patches to the /dev/crypto engine were commited to openssl master,
and will be in the next major version (3.0).
Changes:
- Optimization in computing a digest in one operation, saving an ioctl
- Runtime configuration options for the choice of algorithms to use
- Command to dump useful information about the algorithms supported by
the engine and the system.
- Build the devcrypto engine as a dynamic module, like other engines.
The devcrypto engine is built as a separate package by default, but
options were added to allow building the engines into the main library.
Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
[refresh patches]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
9 files changed, 3678 insertions, 25 deletions
diff --git a/package/libs/openssl/Config.in b/package/libs/openssl/Config.in index 3ad8a66b9e..235f38e787 100644 --- a/package/libs/openssl/Config.in +++ b/package/libs/openssl/Config.in @@ -253,18 +253,41 @@ config OPENSSL_ENGINE Note that you need to enable KERNEL_AIO to be able to build the afalg engine package. -config OPENSSL_ENGINE_CRYPTO +config OPENSSL_ENGINE_BUILTIN + bool "Build chosen engines into libcrypto" + depends on OPENSSL_ENGINE + help + This builds all chosen engines into libcrypto.so, instead of building + them as dynamic engines in separate packages. + The benefit of building the engines into libcrypto is that they won't + require any configuration to be used by default. + +config OPENSSL_ENGINE_BUILTIN_AFALG bool - select OPENSSL_ENGINE - select PACKAGE_kmod-cryptodev + prompt "Acceleration support through AF_ALG sockets engine" + depends on OPENSSL_ENGINE_BUILTIN && KERNEL_AIO && !LINUX_3_18 select PACKAGE_libopenssl-conf + help + This enables use of hardware acceleration through the + AF_ALG kenrel interface. + +config OPENSSL_ENGINE_BUILTIN_DEVCRYPTO + bool prompt "Acceleration support through /dev/crypto" + depends on OPENSSL_ENGINE_BUILTIN + select PACKAGE_libopenssl-conf help This enables use of hardware acceleration through OpenBSD Cryptodev API (/dev/crypto) interface. - You must install kmod-cryptodev (under Kernel modules, Cryptographic - API modules) for /dev/crypto to show up and use hardware - acceleration; otherwise it falls back to software. + +config OPENSSL_ENGINE_BUILTIN_PADLOCK + bool + prompt "VIA Padlock Acceleration support engine" + depends on OPENSSL_ENGINE_BUILTIN && TARGET_x86 + select PACKAGE_libopenssl-conf + help + This enables use of hardware acceleration through the + VIA Padlock module. config OPENSSL_WITH_ASYNC bool diff --git a/package/libs/openssl/Makefile b/package/libs/openssl/Makefile index ab02f09f0e..a9dd16f3e7 100644 --- a/package/libs/openssl/Makefile +++ b/package/libs/openssl/Makefile @@ -11,12 +11,11 @@ PKG_NAME:=openssl PKG_BASE:=1.1.1 PKG_BUGFIX:=b PKG_VERSION:=$(PKG_BASE)$(PKG_BUGFIX) -PKG_RELEASE:=1 +PKG_RELEASE:=2 PKG_USE_MIPS16:=0 ENGINES_DIR=engines-1.1 PKG_BUILD_PARALLEL:=0 -PKG_BUILD_DEPENDS:=cryptodev-linux PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz PKG_SOURCE_URL:= \ @@ -32,7 +31,10 @@ PKG_LICENSE_FILES:=LICENSE PKG_CPE_ID:=cpe:/a:openssl:openssl PKG_CONFIG_DEPENDS:= \ CONFIG_OPENSSL_ENGINE \ - CONFIG_OPENSSL_ENGINE_CRYPTO \ + CONFIG_OPENSSL_ENGINE_BUILTIN \ + CONFIG_OPENSSL_ENGINE_BUILTIN_AFALG \ + CONFIG_OPENSSL_ENGINE_BUILTIN_DEVCRYPTO \ + CONFIG_OPENSSL_ENGINE_BUILTIN_PADLOCK \ CONFIG_OPENSSL_NO_DEPRECATED \ CONFIG_OPENSSL_OPTIMIZE_SPEED \ CONFIG_OPENSSL_PREFER_CHACHA_OVER_GCM \ @@ -89,7 +91,10 @@ endef define Package/libopenssl $(call Package/openssl/Default) SUBMENU:=SSL - DEPENDS:=+OPENSSL_WITH_COMPRESSION:zlib + DEPENDS:=+OPENSSL_WITH_COMPRESSION:zlib \ + +OPENSSL_ENGINE_BUILTIN_AFALG:kmod-crypto-user \ + +OPENSSL_ENGINE_BUILTIN_DEVCRYPTO:kmod-cryptodev \ + +OPENSSL_ENGINE_BUILTIN_PADLOCK:kmod-crypto-hw-padlock TITLE+= (libraries) ABI_VERSION:=1.1 MENU:=1 @@ -134,7 +139,7 @@ define Package/libopenssl-afalg SUBMENU:=SSL TITLE:=AFALG hardware acceleration engine DEPENDS:=libopenssl @OPENSSL_ENGINE @KERNEL_AIO @!LINUX_3_18 +kmod-crypto-user \ - +libopenssl-conf + +libopenssl-conf @!OPENSSL_ENGINE_BUILTIN endef define Package/libopenssl-afalg/description @@ -145,12 +150,28 @@ See https://www.openssl.org/docs/man1.1.1/man5/config.html#Engine-Configuration- The engine_id is "afalg" endef +define Package/libopenssl-devcrypto + $(call Package/openssl/Default) + SUBMENU:=SSL + TITLE:=/dev/crypto hardware acceleration engine + DEPENDS:=libopenssl @OPENSSL_ENGINE +kmod-cryptodev +libopenssl-conf \ + @!OPENSSL_ENGINE_BUILTIN +endef + +define Package/libopenssl-devcrypto/description +This package adds an engine that enables hardware acceleration +through the /dev/crypto kernel interface. +To use it, you need to configure the engine in /etc/ssl/openssl.cnf +See https://www.openssl.org/docs/man1.1.1/man5/config.html#Engine-Configuration-Module +The engine_id is "devcrypto" +endef + define Package/libopenssl-padlock $(call Package/openssl/Default) SUBMENU:=SSL TITLE:=VIA Padlock hardware acceleration engine DEPENDS:=libopenssl @OPENSSL_ENGINE @TARGET_x86 +kmod-crypto-hw-padlock \ - +libopenssl-conf + +libopenssl-conf @!OPENSSL_ENGINE_BUILTIN endef define Package/libopenssl-padlock/description @@ -241,14 +262,27 @@ else endif ifdef CONFIG_OPENSSL_ENGINE - ifdef CONFIG_OPENSSL_ENGINE_CRYPTO - OPENSSL_OPTIONS += enable-devcryptoeng - endif - ifndef CONFIG_PACKAGE_libopenssl-afalg - OPENSSL_OPTIONS += no-afalgeng - endif - ifndef CONFIG_PACKAGE_libopenssl-padlock - OPENSSL_OPTIONS += no-hw-padlock + ifdef CONFIG_OPENSSL_ENGINE_BUILTIN + OPENSSL_OPTIONS += disable-dynamic-engine + ifndef CONFIG_OPENSSL_ENGINE_BUILTIN_AFALG + OPENSSL_OPTIONS += no-afalgeng + endif + ifdef CONFIG_OPENSSL_ENGINE_BUILTIN_DEVCRYPTO + OPENSSL_OPTIONS += enable-devcryptoeng + endif + ifndef CONFIG_OPENSSL_ENGINE_BUILTIN_PADLOCK + OPENSSL_OPTIONS += no-hw-padlock + endif + else + ifdef CONFIG_PACKAGE_libopenssl-devcrypto + OPENSSL_OPTIONS += enable-devcryptoeng + endif + ifndef CONFIG_PACKAGE_libopenssl-afalg + OPENSSL_OPTIONS += no-afalgeng + endif + ifndef CONFIG_PACKAGE_libopenssl-padlock + OPENSSL_OPTIONS += no-hw-padlock + endif endif else OPENSSL_OPTIONS += no-engine @@ -361,6 +395,11 @@ define Package/libopenssl-afalg/install $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/lib/$(ENGINES_DIR)/afalg.so $(1)/usr/lib/$(ENGINES_DIR) endef +define Package/libopenssl-devcrypto/install + $(INSTALL_DIR) $(1)/usr/lib/$(ENGINES_DIR) + $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/lib/$(ENGINES_DIR)/devcrypto.so $(1)/usr/lib/$(ENGINES_DIR) +endef + define Package/libopenssl-padlock/install $(INSTALL_DIR) $(1)/usr/lib/$(ENGINES_DIR) $(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/lib/$(ENGINES_DIR)/*padlock.so $(1)/usr/lib/$(ENGINES_DIR) @@ -369,5 +408,6 @@ endef $(eval $(call BuildPackage,libopenssl)) $(eval $(call BuildPackage,libopenssl-conf)) $(eval $(call BuildPackage,libopenssl-afalg)) +$(eval $(call BuildPackage,libopenssl-devcrypto)) $(eval $(call BuildPackage,libopenssl-padlock)) $(eval $(call BuildPackage,openssl-util)) diff --git a/package/libs/openssl/patches/100-Configure-afalg-support.patch b/package/libs/openssl/patches/100-Configure-afalg-support.patch index f5f32c2818..bbc0831f55 100644 --- a/package/libs/openssl/patches/100-Configure-afalg-support.patch +++ b/package/libs/openssl/patches/100-Configure-afalg-support.patch @@ -10,7 +10,7 @@ Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> --- a/Configure +++ b/Configure -@@ -1554,7 +1554,9 @@ unless ($disabled{"crypto-mdebug-backtra +@@ -1559,7 +1559,9 @@ unless ($disabled{"crypto-mdebug-backtra unless ($disabled{afalgeng}) { $config{afalgeng}=""; diff --git a/package/libs/openssl/patches/130-dont-build-tests-fuzz.patch b/package/libs/openssl/patches/130-dont-build-tests-fuzz.patch index 7c61b1e292..8b827737cd 100644 --- a/package/libs/openssl/patches/130-dont-build-tests-fuzz.patch +++ b/package/libs/openssl/patches/130-dont-build-tests-fuzz.patch @@ -9,7 +9,7 @@ Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> --- a/Configure +++ b/Configure -@@ -299,7 +299,7 @@ my $auto_threads=1; # enable threads +@@ -302,7 +302,7 @@ my $auto_threads=1; # enable threads my $default_ranlib; # Top level directories to build @@ -18,7 +18,7 @@ Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> # crypto/ subdirectories to build $config{sdirs} = [ "objects", -@@ -311,7 +311,7 @@ $config{sdirs} = [ +@@ -314,7 +314,7 @@ $config{sdirs} = [ "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store" ]; # test/ subdirectories to build diff --git a/package/libs/openssl/patches/140-allow-prefer-chacha20.patch b/package/libs/openssl/patches/140-allow-prefer-chacha20.patch index 9cbe221388..ecbb5c61db 100644 --- a/package/libs/openssl/patches/140-allow-prefer-chacha20.patch +++ b/package/libs/openssl/patches/140-allow-prefer-chacha20.patch @@ -37,7 +37,7 @@ Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> "TLS_AES_128_GCM_SHA256" --- a/ssl/ssl_ciph.c +++ b/ssl/ssl_ciph.c -@@ -1464,11 +1464,29 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ +@@ -1466,11 +1466,29 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); @@ -67,7 +67,7 @@ Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> /* * ...and generally, our preferred cipher is AES. -@@ -1524,7 +1542,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ +@@ -1526,7 +1544,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_ * Within each group, ciphers remain sorted by strength and previous * preference, i.e., * 1) ECDHE > DHE diff --git a/package/libs/openssl/patches/400-eng_devcrypto-save-ioctl-if-EVP_MD_.FLAG_ONESHOT.patch b/package/libs/openssl/patches/400-eng_devcrypto-save-ioctl-if-EVP_MD_.FLAG_ONESHOT.patch new file mode 100644 index 0000000000..ebc4aa988f --- /dev/null +++ b/package/libs/openssl/patches/400-eng_devcrypto-save-ioctl-if-EVP_MD_.FLAG_ONESHOT.patch @@ -0,0 +1,58 @@ +From 48e2c9202ea345347da91f4c583e5915eb010d50 Mon Sep 17 00:00:00 2001 +From: Eneas U de Queiroz <cote2004-github@yahoo.com> +Date: Mon, 5 Nov 2018 15:54:17 -0200 +Subject: [PATCH 1/4] eng_devcrypto: save ioctl if EVP_MD_..FLAG_ONESHOT + +Since each ioctl causes a context switch, slowing things down, if +EVP_MD_CTX_FLAG_ONESHOT is set, then: + - call the ioctl in digest_update, saving the result; and + - just copy the result in digest_final, instead of using another ioctl. + +Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> + +Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> +Reviewed-by: Richard Levitte <levitte@openssl.org> +(Merged from https://github.com/openssl/openssl/pull/7585) + +--- a/crypto/engine/eng_devcrypto.c ++++ b/crypto/engine/eng_devcrypto.c +@@ -461,6 +461,7 @@ struct digest_ctx { + struct session_op sess; + /* This signals that the init function was called, not that it succeeded. */ + int init_called; ++ unsigned char digest_res[HASH_MAX_LEN]; + }; + + static const struct digest_data_st { +@@ -564,12 +565,15 @@ static int digest_update(EVP_MD_CTX *ctx + if (digest_ctx == NULL) + return 0; + +- if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; ++ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { ++ if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0) ++ return 1; ++ } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) { ++ return 1; + } + +- return 1; ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; + } + + static int digest_final(EVP_MD_CTX *ctx, unsigned char *md) +@@ -579,7 +583,10 @@ static int digest_final(EVP_MD_CTX *ctx, + + if (md == NULL || digest_ctx == NULL) + return 0; +- if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) { ++ ++ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { ++ memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx)); ++ } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) { + SYSerr(SYS_F_IOCTL, errno); + return 0; + } diff --git a/package/libs/openssl/patches/410-eng_devcrypto-add-configuration-options.patch b/package/libs/openssl/patches/410-eng_devcrypto-add-configuration-options.patch new file mode 100644 index 0000000000..18a430e83d --- /dev/null +++ b/package/libs/openssl/patches/410-eng_devcrypto-add-configuration-options.patch @@ -0,0 +1,566 @@ +From 800272d22acf95070f22c870eca15bdba0539a6a Mon Sep 17 00:00:00 2001 +From: Eneas U de Queiroz <cote2004-github@yahoo.com> +Date: Sat, 3 Nov 2018 15:41:10 -0300 +Subject: [PATCH 2/4] eng_devcrypto: add configuration options + +USE_SOFTDRIVERS: whether to use software (not accelerated) drivers +CIPHERS: list of ciphers to enable +DIGESTS: list of digests to enable + +Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> + +Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> +Reviewed-by: Richard Levitte <levitte@openssl.org> +(Merged from https://github.com/openssl/openssl/pull/7585) + +--- a/crypto/engine/eng_devcrypto.c ++++ b/crypto/engine/eng_devcrypto.c +@@ -16,6 +16,7 @@ + #include <unistd.h> + #include <assert.h> + ++#include <openssl/conf.h> + #include <openssl/evp.h> + #include <openssl/err.h> + #include <openssl/engine.h> +@@ -36,6 +37,30 @@ + * saner... why re-open /dev/crypto for every session? + */ + static int cfd; ++#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */ ++#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */ ++#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */ ++ ++#define DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS DEVCRYPTO_REJECT_SOFTWARE ++static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS; ++ ++/* ++ * cipher/digest status & acceleration definitions ++ * Make sure the defaults are set to 0 ++ */ ++struct driver_info_st { ++ enum devcrypto_status_t { ++ DEVCRYPTO_STATUS_UNUSABLE = -1, /* session open failed */ ++ DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */ ++ DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */ ++ } status; ++ ++ enum devcrypto_accelerated_t { ++ DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */ ++ DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */ ++ DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */ ++ } accelerated; ++}; + + static int clean_devcrypto_session(struct session_op *sess) { + if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) { +@@ -119,13 +144,22 @@ static const struct cipher_data_st { + #endif + }; + +-static size_t get_cipher_data_index(int nid) ++static size_t find_cipher_data_index(int nid) + { + size_t i; + + for (i = 0; i < OSSL_NELEM(cipher_data); i++) + if (nid == cipher_data[i].nid) + return i; ++ return (size_t)-1; ++} ++ ++static size_t get_cipher_data_index(int nid) ++{ ++ size_t i = find_cipher_data_index(nid); ++ ++ if (i != (size_t)-1) ++ return i; + + /* + * Code further down must make sure that only NIDs in the table above +@@ -333,19 +367,40 @@ static int cipher_cleanup(EVP_CIPHER_CTX + } + + /* +- * Keep a table of known nids and associated methods. ++ * Keep tables of known nids, associated methods, selected ciphers, and driver ++ * info. + * Note that known_cipher_nids[] isn't necessarily indexed the same way as +- * cipher_data[] above, which known_cipher_methods[] is. ++ * cipher_data[] above, which the other tables are. + */ + static int known_cipher_nids[OSSL_NELEM(cipher_data)]; + static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */ + static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, }; ++static int selected_ciphers[OSSL_NELEM(cipher_data)]; ++static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)]; ++ ++ ++static int devcrypto_test_cipher(size_t cipher_data_index) ++{ ++ return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE ++ && selected_ciphers[cipher_data_index] == 1 ++ && (cipher_driver_info[cipher_data_index].accelerated ++ == DEVCRYPTO_ACCELERATED ++ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE ++ || (cipher_driver_info[cipher_data_index].accelerated ++ != DEVCRYPTO_NOT_ACCELERATED ++ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); ++} + + static void prepare_cipher_methods(void) + { + size_t i; + struct session_op sess; + unsigned long cipher_mode; ++#ifdef CIOCGSESSINFO ++ struct session_info_op siop; ++#endif ++ ++ memset(&cipher_driver_info, 0, sizeof(cipher_driver_info)); + + memset(&sess, 0, sizeof(sess)); + sess.key = (void *)"01234567890123456789012345678901234567890123456789"; +@@ -353,15 +408,16 @@ static void prepare_cipher_methods(void) + for (i = 0, known_cipher_nids_amount = 0; + i < OSSL_NELEM(cipher_data); i++) { + ++ selected_ciphers[i] = 1; + /* +- * Check that the algo is really availably by trying to open and close +- * a session. ++ * Check that the cipher is usable + */ + sess.cipher = cipher_data[i].devcryptoid; + sess.keylen = cipher_data[i].keylen; +- if (ioctl(cfd, CIOCGSESSION, &sess) < 0 +- || ioctl(cfd, CIOCFSESSION, &sess.ses) < 0) ++ if (ioctl(cfd, CIOCGSESSION, &sess) < 0) { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; + continue; ++ } + + cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE; + +@@ -387,15 +443,41 @@ static void prepare_cipher_methods(void) + cipher_cleanup) + || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i], + sizeof(struct cipher_ctx))) { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; + EVP_CIPHER_meth_free(known_cipher_methods[i]); + known_cipher_methods[i] = NULL; + } else { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; ++#ifdef CIOCGSESSINFO ++ siop.ses = sess.ses; ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) ++ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; ++ else if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)) ++ cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ else ++ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++#endif /* CIOCGSESSINFO */ ++ } ++ ioctl(cfd, CIOCFSESSION, &sess.ses); ++ if (devcrypto_test_cipher(i)) { + known_cipher_nids[known_cipher_nids_amount++] = + cipher_data[i].nid; + } + } + } + ++static void rebuild_known_cipher_nids(ENGINE *e) ++{ ++ size_t i; ++ ++ for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) { ++ if (devcrypto_test_cipher(i)) ++ known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid; ++ } ++ ENGINE_unregister_ciphers(e); ++ ENGINE_register_ciphers(e); ++} ++ + static const EVP_CIPHER *get_cipher_method(int nid) + { + size_t i = get_cipher_data_index(nid); +@@ -438,6 +520,36 @@ static int devcrypto_ciphers(ENGINE *e, + return *cipher != NULL; + } + ++static void devcrypto_select_all_ciphers(int *cipher_list) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) ++ cipher_list[i] = 1; ++} ++ ++static int cryptodev_select_cipher_cb(const char *str, int len, void *usr) ++{ ++ int *cipher_list = (int *)usr; ++ char *name; ++ const EVP_CIPHER *EVP; ++ size_t i; ++ ++ if (len == 0) ++ return 1; ++ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) ++ return 0; ++ EVP = EVP_get_cipherbyname(name); ++ if (EVP == NULL) ++ fprintf(stderr, "devcrypto: unknown cipher %s\n", name); ++ else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1) ++ cipher_list[i] = 1; ++ else ++ fprintf(stderr, "devcrypto: cipher %s not available\n", name); ++ OPENSSL_free(name); ++ return 1; ++} ++ + /* + * We only support digests if the cryptodev implementation supports multiple + * data updates and session copying. Otherwise, we would be forced to maintain +@@ -493,13 +605,22 @@ static const struct digest_data_st { + #endif + }; + +-static size_t get_digest_data_index(int nid) ++static size_t find_digest_data_index(int nid) + { + size_t i; + + for (i = 0; i < OSSL_NELEM(digest_data); i++) + if (nid == digest_data[i].nid) + return i; ++ return (size_t)-1; ++} ++ ++static size_t get_digest_data_index(int nid) ++{ ++ size_t i = find_digest_data_index(nid); ++ ++ if (i != (size_t)-1) ++ return i; + + /* + * Code further down must make sure that only NIDs in the table above +@@ -516,8 +637,8 @@ static const struct digest_data_st *get_ + } + + /* +- * Following are the four necessary functions to map OpenSSL functionality +- * with cryptodev. ++ * Following are the five necessary functions to map OpenSSL functionality ++ * with cryptodev: init, update, final, cleanup, and copy. + */ + + static int digest_init(EVP_MD_CTX *ctx) +@@ -630,52 +751,94 @@ static int digest_cleanup(EVP_MD_CTX *ct + return clean_devcrypto_session(&digest_ctx->sess); + } + +-static int devcrypto_test_digest(size_t digest_data_index) +-{ +- struct session_op sess1, sess2; +- struct cphash_op cphash; +- int ret=0; +- +- memset(&sess1, 0, sizeof(sess1)); +- memset(&sess2, 0, sizeof(sess2)); +- sess1.mac = digest_data[digest_data_index].devcryptoid; +- if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) +- return 0; +- /* Make sure the driver is capable of hash state copy */ +- sess2.mac = sess1.mac; +- if (ioctl(cfd, CIOCGSESSION, &sess2) >= 0) { +- cphash.src_ses = sess1.ses; +- cphash.dst_ses = sess2.ses; +- if (ioctl(cfd, CIOCCPHASH, &cphash) >= 0) +- ret = 1; +- ioctl(cfd, CIOCFSESSION, &sess2.ses); +- } +- ioctl(cfd, CIOCFSESSION, &sess1.ses); +- return ret; +-} +- + /* +- * Keep a table of known nids and associated methods. ++ * Keep tables of known nids, associated methods, selected digests, and ++ * driver info. + * Note that known_digest_nids[] isn't necessarily indexed the same way as +- * digest_data[] above, which known_digest_methods[] is. ++ * digest_data[] above, which the other tables are. + */ + static int known_digest_nids[OSSL_NELEM(digest_data)]; + static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */ + static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, }; ++static int selected_digests[OSSL_NELEM(digest_data)]; ++static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)]; ++ ++static int devcrypto_test_digest(size_t digest_data_index) ++{ ++ return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE ++ && selected_digests[digest_data_index] == 1 ++ && (digest_driver_info[digest_data_index].accelerated ++ == DEVCRYPTO_ACCELERATED ++ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE ++ || (digest_driver_info[digest_data_index].accelerated ++ != DEVCRYPTO_NOT_ACCELERATED ++ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); ++} ++ ++static void rebuild_known_digest_nids(ENGINE *e) ++{ ++ size_t i; ++ ++ for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) { ++ if (devcrypto_test_digest(i)) ++ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; ++ } ++ ENGINE_unregister_digests(e); ++ ENGINE_register_digests(e); ++} + + static void prepare_digest_methods(void) + { + size_t i; ++ struct session_op sess1, sess2; ++#ifdef CIOCGSESSINFO ++ struct session_info_op siop; ++#endif ++ struct cphash_op cphash; ++ ++ memset(&digest_driver_info, 0, sizeof(digest_driver_info)); ++ ++ memset(&sess1, 0, sizeof(sess1)); ++ memset(&sess2, 0, sizeof(sess2)); + + for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); + i++) { + ++ selected_digests[i] = 1; ++ + /* +- * Check that the algo is usable ++ * Check that the digest is usable + */ +- if (!devcrypto_test_digest(i)) +- continue; ++ sess1.mac = digest_data[i].devcryptoid; ++ sess2.ses = 0; ++ if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ goto finish; ++ } + ++#ifdef CIOCGSESSINFO ++ /* gather hardware acceleration info from the driver */ ++ siop.ses = sess1.ses; ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) ++ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; ++ else if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY) ++ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ else ++ digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++#endif ++ ++ /* digest must be capable of hash state copy */ ++ sess2.mac = sess1.mac; ++ if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ goto finish; ++ } ++ cphash.src_ses = sess1.ses; ++ cphash.dst_ses = sess2.ses; ++ if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ goto finish; ++ } + if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid, + NID_undef)) == NULL + || !EVP_MD_meth_set_input_blocksize(known_digest_methods[i], +@@ -689,11 +852,18 @@ static void prepare_digest_methods(void) + || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup) + || !EVP_MD_meth_set_app_datasize(known_digest_methods[i], + sizeof(struct digest_ctx))) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; + EVP_MD_meth_free(known_digest_methods[i]); + known_digest_methods[i] = NULL; +- } else { +- known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; ++ goto finish; + } ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; ++finish: ++ ioctl(cfd, CIOCFSESSION, &sess1.ses); ++ if (sess2.ses != 0) ++ ioctl(cfd, CIOCFSESSION, &sess2.ses); ++ if (devcrypto_test_digest(i)) ++ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; + } + } + +@@ -739,7 +909,153 @@ static int devcrypto_digests(ENGINE *e, + return *digest != NULL; + } + ++static void devcrypto_select_all_digests(int *digest_list) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) ++ digest_list[i] = 1; ++} ++ ++static int cryptodev_select_digest_cb(const char *str, int len, void *usr) ++{ ++ int *digest_list = (int *)usr; ++ char *name; ++ const EVP_MD *EVP; ++ size_t i; ++ ++ if (len == 0) ++ return 1; ++ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) ++ return 0; ++ EVP = EVP_get_digestbyname(name); ++ if (EVP == NULL) ++ fprintf(stderr, "devcrypto: unknown digest %s\n", name); ++ else if ((i = find_digest_data_index(EVP_MD_type(EVP))) != (size_t)-1) ++ digest_list[i] = 1; ++ else ++ fprintf(stderr, "devcrypto: digest %s not available\n", name); ++ OPENSSL_free(name); ++ return 1; ++} ++ ++#endif ++ ++/****************************************************************************** ++ * ++ * CONTROL COMMANDS ++ * ++ *****/ ++ ++#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE ++#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1) ++#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2) ++#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3) ++ ++/* Helper macros for CPP string composition */ ++#ifndef OPENSSL_MSTR ++# define OPENSSL_MSTR_HELPER(x) #x ++# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x) ++#endif ++ ++static const ENGINE_CMD_DEFN devcrypto_cmds[] = { ++#ifdef CIOCGSESSINFO ++ {DEVCRYPTO_CMD_USE_SOFTDRIVERS, ++ "USE_SOFTDRIVERS", ++ "specifies whether to use software (not accelerated) drivers (" ++ OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, " ++ OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, " ++ OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE) ++ "=use if acceleration can't be determined) [default=" ++ OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS) "]", ++ ENGINE_CMD_FLAG_NUMERIC}, ++#endif ++ ++ {DEVCRYPTO_CMD_CIPHERS, ++ "CIPHERS", ++ "either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]", ++ ENGINE_CMD_FLAG_STRING}, ++ ++#ifdef IMPLEMENT_DIGEST ++ {DEVCRYPTO_CMD_DIGESTS, ++ "DIGESTS", ++ "either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]", ++ ENGINE_CMD_FLAG_STRING}, ++#endif ++ ++ {0, NULL, NULL, 0} ++}; ++ ++static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) ++{ ++ int *new_list; ++ switch (cmd) { ++#ifdef CIOCGSESSINFO ++ case DEVCRYPTO_CMD_USE_SOFTDRIVERS: ++ switch (i) { ++ case DEVCRYPTO_REQUIRE_ACCELERATED: ++ case DEVCRYPTO_USE_SOFTWARE: ++ case DEVCRYPTO_REJECT_SOFTWARE: ++ break; ++ default: ++ fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i); ++ return 0; ++ } ++ if (use_softdrivers == i) ++ return 1; ++ use_softdrivers = i; ++#ifdef IMPLEMENT_DIGEST ++ rebuild_known_digest_nids(e); + #endif ++ rebuild_known_cipher_nids(e); ++ return 1; ++#endif /* CIOCGSESSINFO */ ++ ++ case DEVCRYPTO_CMD_CIPHERS: ++ if (p == NULL) ++ return 1; ++ if (strcasecmp((const char *)p, "ALL") == 0) { ++ devcrypto_select_all_ciphers(selected_ciphers); ++ } else if (strcasecmp((const char*)p, "NONE") == 0) { ++ memset(selected_ciphers, 0, sizeof(selected_ciphers)); ++ } else { ++ new_list=OPENSSL_zalloc(sizeof(selected_ciphers)); ++ if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) { ++ OPENSSL_free(new_list); ++ return 0; ++ } ++ memcpy(selected_ciphers, new_list, sizeof(selected_ciphers)); ++ OPENSSL_free(new_list); ++ } ++ rebuild_known_cipher_nids(e); ++ return 1; ++ ++#ifdef IMPLEMENT_DIGEST ++ case DEVCRYPTO_CMD_DIGESTS: ++ if (p == NULL) ++ return 1; ++ if (strcasecmp((const char *)p, "ALL") == 0) { ++ devcrypto_select_all_digests(selected_digests); ++ } else if (strcasecmp((const char*)p, "NONE") == 0) { ++ memset(selected_digests, 0, sizeof(selected_digests)); ++ } else { ++ new_list=OPENSSL_zalloc(sizeof(selected_digests)); ++ if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) { ++ OPENSSL_free(new_list); ++ return 0; ++ } ++ memcpy(selected_digests, new_list, sizeof(selected_digests)); ++ OPENSSL_free(new_list); ++ } ++ rebuild_known_digest_nids(e); ++ return 1; ++#endif /* IMPLEMENT_DIGEST */ ++ ++ default: ++ break; ++ } ++ return 0; ++} + + /****************************************************************************** + * +@@ -793,6 +1109,8 @@ void engine_load_devcrypto_int() + + if (!ENGINE_set_id(e, "devcrypto") + || !ENGINE_set_name(e, "/dev/crypto engine") ++ || !ENGINE_set_cmd_defns(e, devcrypto_cmds) ++ || !ENGINE_set_ctrl_function(e, devcrypto_ctrl) + + /* + * Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD diff --git a/package/libs/openssl/patches/420-eng_devcrypto-add-command-to-dump-driver-info.patch b/package/libs/openssl/patches/420-eng_devcrypto-add-command-to-dump-driver-info.patch new file mode 100644 index 0000000000..bb18d71aba --- /dev/null +++ b/package/libs/openssl/patches/420-eng_devcrypto-add-command-to-dump-driver-info.patch @@ -0,0 +1,273 @@ +From ced41f7d44cb8cd3c4523f7271530d9d92e4f064 Mon Sep 17 00:00:00 2001 +From: Eneas U de Queiroz <cote2004-github@yahoo.com> +Date: Tue, 6 Nov 2018 22:54:07 -0200 +Subject: [PATCH 3/4] eng_devcrypto: add command to dump driver info + +This is useful to determine the kernel driver running each algorithm. + +Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> + +Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> +Reviewed-by: Richard Levitte <levitte@openssl.org> +(Merged from https://github.com/openssl/openssl/pull/7585) + +--- a/crypto/engine/eng_devcrypto.c ++++ b/crypto/engine/eng_devcrypto.c +@@ -50,16 +50,20 @@ static int use_softdrivers = DEVCRYPTO_D + */ + struct driver_info_st { + enum devcrypto_status_t { +- DEVCRYPTO_STATUS_UNUSABLE = -1, /* session open failed */ +- DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */ +- DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */ ++ DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */ ++ DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */ ++ DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */ ++ DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */ ++ DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */ + } status; + + enum devcrypto_accelerated_t { +- DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */ +- DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */ +- DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */ ++ DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */ ++ DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */ ++ DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */ + } accelerated; ++ ++ char *driver_name; + }; + + static int clean_devcrypto_session(struct session_op *sess) { +@@ -415,7 +419,7 @@ static void prepare_cipher_methods(void) + sess.cipher = cipher_data[i].devcryptoid; + sess.keylen = cipher_data[i].keylen; + if (ioctl(cfd, CIOCGSESSION, &sess) < 0) { +- cipher_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; + continue; + } + +@@ -443,19 +447,24 @@ static void prepare_cipher_methods(void) + cipher_cleanup) + || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i], + sizeof(struct cipher_ctx))) { +- cipher_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; + EVP_CIPHER_meth_free(known_cipher_methods[i]); + known_cipher_methods[i] = NULL; + } else { + cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; + #ifdef CIOCGSESSINFO + siop.ses = sess.ses; +- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { + cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; +- else if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)) +- cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; +- else +- cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ } else { ++ cipher_driver_info[i].driver_name = ++ OPENSSL_strndup(siop.cipher_info.cra_driver_name, ++ CRYPTODEV_MAX_ALG_NAME); ++ if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)) ++ cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ else ++ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ } + #endif /* CIOCGSESSINFO */ + } + ioctl(cfd, CIOCFSESSION, &sess.ses); +@@ -505,8 +514,11 @@ static void destroy_all_cipher_methods(v + { + size_t i; + +- for (i = 0; i < OSSL_NELEM(cipher_data); i++) ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) { + destroy_cipher_method(cipher_data[i].nid); ++ OPENSSL_free(cipher_driver_info[i].driver_name); ++ cipher_driver_info[i].driver_name = NULL; ++ } + } + + static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher, +@@ -550,6 +562,40 @@ static int cryptodev_select_cipher_cb(co + return 1; + } + ++static void dump_cipher_info(void) ++{ ++ size_t i; ++ const char *name; ++ ++ fprintf (stderr, "Information about ciphers supported by the /dev/crypto" ++ " engine:\n"); ++#ifndef CIOCGSESSINFO ++ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); ++#endif ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) { ++ name = OBJ_nid2sn(cipher_data[i].nid); ++ fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ", ++ name ? name : "unknown", cipher_data[i].nid, ++ cipher_data[i].devcryptoid); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION ) { ++ fprintf (stderr, "CIOCGSESSION (session open call) failed\n"); ++ continue; ++ } ++ fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ? ++ cipher_driver_info[i].driver_name : "unknown"); ++ if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) ++ fprintf(stderr, "(hw accelerated)"); ++ else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) ++ fprintf(stderr, "(software)"); ++ else ++ fprintf(stderr, "(acceleration status unknown)"); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) ++ fprintf (stderr, ". Cipher setup failed"); ++ fprintf(stderr, "\n"); ++ } ++ fprintf(stderr, "\n"); ++} ++ + /* + * We only support digests if the cryptodev implementation supports multiple + * data updates and session copying. Otherwise, we would be forced to maintain +@@ -812,31 +858,36 @@ static void prepare_digest_methods(void) + sess1.mac = digest_data[i].devcryptoid; + sess2.ses = 0; + if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; + goto finish; + } + + #ifdef CIOCGSESSINFO + /* gather hardware acceleration info from the driver */ + siop.ses = sess1.ses; +- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { + digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; +- else if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY) +- digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; +- else +- digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ } else { ++ digest_driver_info[i].driver_name = ++ OPENSSL_strndup(siop.hash_info.cra_driver_name, ++ CRYPTODEV_MAX_ALG_NAME); ++ if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY) ++ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ else ++ digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ } + #endif + + /* digest must be capable of hash state copy */ + sess2.mac = sess1.mac; + if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; + goto finish; + } + cphash.src_ses = sess1.ses; + cphash.dst_ses = sess2.ses; + if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH; + goto finish; + } + if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid, +@@ -852,7 +903,7 @@ static void prepare_digest_methods(void) + || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup) + || !EVP_MD_meth_set_app_datasize(known_digest_methods[i], + sizeof(struct digest_ctx))) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_UNUSABLE; ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; + EVP_MD_meth_free(known_digest_methods[i]); + known_digest_methods[i] = NULL; + goto finish; +@@ -894,8 +945,11 @@ static void destroy_all_digest_methods(v + { + size_t i; + +- for (i = 0; i < OSSL_NELEM(digest_data); i++) ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) { + destroy_digest_method(digest_data[i].nid); ++ OPENSSL_free(digest_driver_info[i].driver_name); ++ digest_driver_info[i].driver_name = NULL; ++ } + } + + static int devcrypto_digests(ENGINE *e, const EVP_MD **digest, +@@ -939,6 +993,43 @@ static int cryptodev_select_digest_cb(co + return 1; + } + ++static void dump_digest_info(void) ++{ ++ size_t i; ++ const char *name; ++ ++ fprintf (stderr, "Information about digests supported by the /dev/crypto" ++ " engine:\n"); ++#ifndef CIOCGSESSINFO ++ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); ++#endif ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) { ++ name = OBJ_nid2sn(digest_data[i].nid); ++ fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s", ++ name ? name : "unknown", digest_data[i].nid, ++ digest_data[i].devcryptoid, ++ digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown"); ++ if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) { ++ fprintf (stderr, ". CIOCGSESSION (session open) failed\n"); ++ continue; ++ } ++ if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) ++ fprintf(stderr, " (hw accelerated)"); ++ else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) ++ fprintf(stderr, " (software)"); ++ else ++ fprintf(stderr, " (acceleration status unknown)"); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) ++ fprintf (stderr, ". Cipher setup failed\n"); ++ else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH) ++ fprintf(stderr, ", CIOCCPHASH failed\n"); ++ else ++ fprintf(stderr, ", CIOCCPHASH capable\n"); ++ } ++ fprintf(stderr, "\n"); ++} ++ + #endif + + /****************************************************************************** +@@ -983,6 +1074,11 @@ static const ENGINE_CMD_DEFN devcrypto_c + ENGINE_CMD_FLAG_STRING}, + #endif + ++ {DEVCRYPTO_CMD_DUMP_INFO, ++ "DUMP_INFO", ++ "dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'", ++ ENGINE_CMD_FLAG_NO_INPUT}, ++ + {0, NULL, NULL, 0} + }; + +@@ -1051,6 +1147,13 @@ static int devcrypto_ctrl(ENGINE *e, int + return 1; + #endif /* IMPLEMENT_DIGEST */ + ++ case DEVCRYPTO_CMD_DUMP_INFO: ++ dump_cipher_info(); ++#ifdef IMPLEMENT_DIGEST ++ dump_digest_info(); ++#endif ++ return 1; ++ + default: + break; + } diff --git a/package/libs/openssl/patches/430-e_devcrypto-make-the-dev-crypto-engine-dynamic.patch b/package/libs/openssl/patches/430-e_devcrypto-make-the-dev-crypto-engine-dynamic.patch new file mode 100644 index 0000000000..b6d274ad12 --- /dev/null +++ b/package/libs/openssl/patches/430-e_devcrypto-make-the-dev-crypto-engine-dynamic.patch @@ -0,0 +1,2693 @@ +From 37a5c14aad5051201e4bd18faf1a4b25a824cc30 Mon Sep 17 00:00:00 2001 +From: Eneas U de Queiroz <cote2004-github@yahoo.com> +Date: Tue, 6 Nov 2018 10:57:03 -0200 +Subject: [PATCH 4/4] e_devcrypto: make the /dev/crypto engine dynamic + +Engine has been moved from crypto/engine/eng_devcrypto.c to +engines/e_devcrypto.c. + +Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com> + +--- a/crypto/engine/build.info ++++ b/crypto/engine/build.info +@@ -6,6 +6,3 @@ SOURCE[../../libcrypto]=\ + tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c tb_eckey.c \ + eng_openssl.c eng_cnf.c eng_dyn.c \ + eng_rdrand.c +-IF[{- !$disabled{devcryptoeng} -}] +- SOURCE[../../libcrypto]=eng_devcrypto.c +-ENDIF +--- a/crypto/init.c ++++ b/crypto/init.c +@@ -330,18 +330,6 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_ + engine_load_openssl_int(); + return 1; + } +-# ifndef OPENSSL_NO_DEVCRYPTOENG +-static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; +-DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) +-{ +-# ifdef OPENSSL_INIT_DEBUG +- fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: " +- "engine_load_devcrypto_int()\n"); +-# endif +- engine_load_devcrypto_int(); +- return 1; +-} +-# endif + + # ifndef OPENSSL_NO_RDRAND + static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; +@@ -366,6 +354,18 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_ + return 1; + } + # ifndef OPENSSL_NO_STATIC_ENGINE ++# ifndef OPENSSL_NO_DEVCRYPTOENG ++static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; ++DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) ++{ ++# ifdef OPENSSL_INIT_DEBUG ++ fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: " ++ "engine_load_devcrypto_int()\n"); ++# endif ++ engine_load_devcrypto_int(); ++ return 1; ++} ++# endif + # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK) + static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT; + DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock) +@@ -714,11 +714,6 @@ int OPENSSL_init_crypto(uint64_t opts, c + if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) + && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) + return 0; +-# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_DEVCRYPTOENG) +- if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) +- && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) +- return 0; +-# endif + # ifndef OPENSSL_NO_RDRAND + if ((opts & OPENSSL_INIT_ENGINE_RDRAND) + && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) +@@ -728,6 +723,11 @@ int OPENSSL_init_crypto(uint64_t opts, c + && !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic)) + return 0; + # ifndef OPENSSL_NO_STATIC_ENGINE ++# ifndef OPENSSL_NO_DEVCRYPTOENG ++ if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) ++ && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) ++ return 0; ++# endif + # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK) + if ((opts & OPENSSL_INIT_ENGINE_PADLOCK) + && !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock)) +--- a/engines/build.info ++++ b/engines/build.info +@@ -10,6 +10,9 @@ IF[{- !$disabled{"engine"} -}] + IF[{- !$disabled{afalgeng} -}] + SOURCE[../libcrypto]=e_afalg.c + ENDIF ++ IF[{- !$disabled{"devcryptoeng"} -}] ++ SOURCE[../libcrypto]=e_devcrypto.c ++ ENDIF + ELSE + ENGINES=padlock + SOURCE[padlock]=e_padlock.c {- $target{padlock_asm_src} -} +@@ -27,6 +30,12 @@ IF[{- !$disabled{"engine"} -}] + DEPEND[afalg]=../libcrypto + INCLUDE[afalg]= ../include + ENDIF ++ IF[{- !$disabled{"devcryptoeng"} -}] ++ ENGINES=devcrypto ++ SOURCE[devcrypto]=e_devcrypto.c ++ DEPEND[devcrypto]=../libcrypto ++ INCLUDE[devcrypto]=../include ++ ENDIF + + ENGINES_NO_INST=ossltest dasync + SOURCE[dasync]=e_dasync.c +--- a/crypto/engine/eng_devcrypto.c ++++ /dev/null +@@ -1,1264 +0,0 @@ +-/* +- * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved. +- * +- * Licensed under the OpenSSL license (the "License"). You may not use +- * this file except in compliance with the License. You can obtain a copy +- * in the file LICENSE in the source distribution or at +- * https://www.openssl.org/source/license.html +- */ +- +-#include "e_os.h" +-#include <string.h> +-#include <sys/types.h> +-#include <sys/stat.h> +-#include <fcntl.h> +-#include <sys/ioctl.h> +-#include <unistd.h> +-#include <assert.h> +- +-#include <openssl/conf.h> +-#include <openssl/evp.h> +-#include <openssl/err.h> +-#include <openssl/engine.h> +-#include <openssl/objects.h> +-#include <crypto/cryptodev.h> +- +-#include "internal/engine.h" +- +-/* #define ENGINE_DEVCRYPTO_DEBUG */ +- +-#ifdef CRYPTO_ALGORITHM_MIN +-# define CHECK_BSD_STYLE_MACROS +-#endif +- +-/* +- * ONE global file descriptor for all sessions. This allows operations +- * such as digest session data copying (see digest_copy()), but is also +- * saner... why re-open /dev/crypto for every session? +- */ +-static int cfd; +-#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */ +-#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */ +-#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */ +- +-#define DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS DEVCRYPTO_REJECT_SOFTWARE +-static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS; +- +-/* +- * cipher/digest status & acceleration definitions +- * Make sure the defaults are set to 0 +- */ +-struct driver_info_st { +- enum devcrypto_status_t { +- DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */ +- DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */ +- DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */ +- DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */ +- DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */ +- } status; +- +- enum devcrypto_accelerated_t { +- DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */ +- DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */ +- DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */ +- } accelerated; +- +- char *driver_name; +-}; +- +-static int clean_devcrypto_session(struct session_op *sess) { +- if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- memset(sess, 0, sizeof(struct session_op)); +- return 1; +-} +- +-/****************************************************************************** +- * +- * Ciphers +- * +- * Because they all do the same basic operation, we have only one set of +- * method functions for them all to share, and a mapping table between +- * NIDs and cryptodev IDs, with all the necessary size data. +- * +- *****/ +- +-struct cipher_ctx { +- struct session_op sess; +- int op; /* COP_ENCRYPT or COP_DECRYPT */ +- unsigned long mode; /* EVP_CIPH_*_MODE */ +- +- /* to handle ctr mode being a stream cipher */ +- unsigned char partial[EVP_MAX_BLOCK_LENGTH]; +- unsigned int blocksize, num; +-}; +- +-static const struct cipher_data_st { +- int nid; +- int blocksize; +- int keylen; +- int ivlen; +- int flags; +- int devcryptoid; +-} cipher_data[] = { +-#ifndef OPENSSL_NO_DES +- { NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC }, +- { NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC }, +-#endif +-#ifndef OPENSSL_NO_BF +- { NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC }, +-#endif +-#ifndef OPENSSL_NO_CAST +- { NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC }, +-#endif +- { NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, +- { NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, +- { NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, +-#ifndef OPENSSL_NO_RC4 +- { NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 }, +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR) +- { NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, +- { NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, +- { NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, +-#endif +-#if 0 /* Not yet supported */ +- { NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, +- { NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB) +- { NID_aes_128_ecb, 16, 128 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, +- { NID_aes_192_ecb, 16, 192 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, +- { NID_aes_256_ecb, 16, 256 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, +-#endif +-#if 0 /* Not yet supported */ +- { NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, +- { NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, +- { NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, +-#endif +-#ifndef OPENSSL_NO_CAMELLIA +- { NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, +- CRYPTO_CAMELLIA_CBC }, +- { NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, +- CRYPTO_CAMELLIA_CBC }, +- { NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, +- CRYPTO_CAMELLIA_CBC }, +-#endif +-}; +- +-static size_t find_cipher_data_index(int nid) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(cipher_data); i++) +- if (nid == cipher_data[i].nid) +- return i; +- return (size_t)-1; +-} +- +-static size_t get_cipher_data_index(int nid) +-{ +- size_t i = find_cipher_data_index(nid); +- +- if (i != (size_t)-1) +- return i; +- +- /* +- * Code further down must make sure that only NIDs in the table above +- * are used. If any other NID reaches this function, there's a grave +- * coding error further down. +- */ +- assert("Code that never should be reached" == NULL); +- return -1; +-} +- +-static const struct cipher_data_st *get_cipher_data(int nid) +-{ +- return &cipher_data[get_cipher_data_index(nid)]; +-} +- +-/* +- * Following are the three necessary functions to map OpenSSL functionality +- * with cryptodev. +- */ +- +-static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, +- const unsigned char *iv, int enc) +-{ +- struct cipher_ctx *cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); +- const struct cipher_data_st *cipher_d = +- get_cipher_data(EVP_CIPHER_CTX_nid(ctx)); +- +- /* cleanup a previous session */ +- if (cipher_ctx->sess.ses != 0 && +- clean_devcrypto_session(&cipher_ctx->sess) == 0) +- return 0; +- +- cipher_ctx->sess.cipher = cipher_d->devcryptoid; +- cipher_ctx->sess.keylen = cipher_d->keylen; +- cipher_ctx->sess.key = (void *)key; +- cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT; +- cipher_ctx->mode = cipher_d->flags & EVP_CIPH_MODE; +- cipher_ctx->blocksize = cipher_d->blocksize; +- if (ioctl(cfd, CIOCGSESSION, &cipher_ctx->sess) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- +- return 1; +-} +- +-static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, +- const unsigned char *in, size_t inl) +-{ +- struct cipher_ctx *cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); +- struct crypt_op cryp; +- unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx); +-#if !defined(COP_FLAG_WRITE_IV) +- unsigned char saved_iv[EVP_MAX_IV_LENGTH]; +- const unsigned char *ivptr; +- size_t nblocks, ivlen; +-#endif +- +- memset(&cryp, 0, sizeof(cryp)); +- cryp.ses = cipher_ctx->sess.ses; +- cryp.len = inl; +- cryp.src = (void *)in; +- cryp.dst = (void *)out; +- cryp.iv = (void *)iv; +- cryp.op = cipher_ctx->op; +-#if !defined(COP_FLAG_WRITE_IV) +- cryp.flags = 0; +- +- ivlen = EVP_CIPHER_CTX_iv_length(ctx); +- if (ivlen > 0) +- switch (cipher_ctx->mode) { +- case EVP_CIPH_CBC_MODE: +- assert(inl >= ivlen); +- if (!EVP_CIPHER_CTX_encrypting(ctx)) { +- ivptr = in + inl - ivlen; +- memcpy(saved_iv, ivptr, ivlen); +- } +- break; +- +- case EVP_CIPH_CTR_MODE: +- break; +- +- default: /* should not happen */ +- return 0; +- } +-#else +- cryp.flags = COP_FLAG_WRITE_IV; +-#endif +- +- if (ioctl(cfd, CIOCCRYPT, &cryp) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- +-#if !defined(COP_FLAG_WRITE_IV) +- if (ivlen > 0) +- switch (cipher_ctx->mode) { +- case EVP_CIPH_CBC_MODE: +- assert(inl >= ivlen); +- if (EVP_CIPHER_CTX_encrypting(ctx)) +- ivptr = out + inl - ivlen; +- else +- ivptr = saved_iv; +- +- memcpy(iv, ivptr, ivlen); +- break; +- +- case EVP_CIPH_CTR_MODE: +- nblocks = (inl + cipher_ctx->blocksize - 1) +- / cipher_ctx->blocksize; +- do { +- ivlen--; +- nblocks += iv[ivlen]; +- iv[ivlen] = (uint8_t) nblocks; +- nblocks >>= 8; +- } while (ivlen); +- break; +- +- default: /* should not happen */ +- return 0; +- } +-#endif +- +- return 1; +-} +- +-static int ctr_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, +- const unsigned char *in, size_t inl) +-{ +- struct cipher_ctx *cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); +- size_t nblocks, len; +- +- /* initial partial block */ +- while (cipher_ctx->num && inl) { +- (*out++) = *(in++) ^ cipher_ctx->partial[cipher_ctx->num]; +- --inl; +- cipher_ctx->num = (cipher_ctx->num + 1) % cipher_ctx->blocksize; +- } +- +- /* full blocks */ +- if (inl > (unsigned int) cipher_ctx->blocksize) { +- nblocks = inl/cipher_ctx->blocksize; +- len = nblocks * cipher_ctx->blocksize; +- if (cipher_do_cipher(ctx, out, in, len) < 1) +- return 0; +- inl -= len; +- out += len; +- in += len; +- } +- +- /* final partial block */ +- if (inl) { +- memset(cipher_ctx->partial, 0, cipher_ctx->blocksize); +- if (cipher_do_cipher(ctx, cipher_ctx->partial, cipher_ctx->partial, +- cipher_ctx->blocksize) < 1) +- return 0; +- while (inl--) { +- out[cipher_ctx->num] = in[cipher_ctx->num] +- ^ cipher_ctx->partial[cipher_ctx->num]; +- cipher_ctx->num++; +- } +- } +- +- return 1; +-} +- +-static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2) +-{ +- struct cipher_ctx *cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); +- EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2; +- struct cipher_ctx *to_cipher_ctx; +- +- switch (type) { +- case EVP_CTRL_COPY: +- if (cipher_ctx == NULL) +- return 1; +- /* when copying the context, a new session needs to be initialized */ +- to_cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx); +- memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess)); +- return cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx), +- (cipher_ctx->op == COP_ENCRYPT)); +- +- case EVP_CTRL_INIT: +- memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess)); +- return 1; +- +- default: +- break; +- } +- +- return -1; +-} +- +-static int cipher_cleanup(EVP_CIPHER_CTX *ctx) +-{ +- struct cipher_ctx *cipher_ctx = +- (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); +- +- return clean_devcrypto_session(&cipher_ctx->sess); +-} +- +-/* +- * Keep tables of known nids, associated methods, selected ciphers, and driver +- * info. +- * Note that known_cipher_nids[] isn't necessarily indexed the same way as +- * cipher_data[] above, which the other tables are. +- */ +-static int known_cipher_nids[OSSL_NELEM(cipher_data)]; +-static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */ +-static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, }; +-static int selected_ciphers[OSSL_NELEM(cipher_data)]; +-static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)]; +- +- +-static int devcrypto_test_cipher(size_t cipher_data_index) +-{ +- return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE +- && selected_ciphers[cipher_data_index] == 1 +- && (cipher_driver_info[cipher_data_index].accelerated +- == DEVCRYPTO_ACCELERATED +- || use_softdrivers == DEVCRYPTO_USE_SOFTWARE +- || (cipher_driver_info[cipher_data_index].accelerated +- != DEVCRYPTO_NOT_ACCELERATED +- && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); +-} +- +-static void prepare_cipher_methods(void) +-{ +- size_t i; +- struct session_op sess; +- unsigned long cipher_mode; +-#ifdef CIOCGSESSINFO +- struct session_info_op siop; +-#endif +- +- memset(&cipher_driver_info, 0, sizeof(cipher_driver_info)); +- +- memset(&sess, 0, sizeof(sess)); +- sess.key = (void *)"01234567890123456789012345678901234567890123456789"; +- +- for (i = 0, known_cipher_nids_amount = 0; +- i < OSSL_NELEM(cipher_data); i++) { +- +- selected_ciphers[i] = 1; +- /* +- * Check that the cipher is usable +- */ +- sess.cipher = cipher_data[i].devcryptoid; +- sess.keylen = cipher_data[i].keylen; +- if (ioctl(cfd, CIOCGSESSION, &sess) < 0) { +- cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; +- continue; +- } +- +- cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE; +- +- if ((known_cipher_methods[i] = +- EVP_CIPHER_meth_new(cipher_data[i].nid, +- cipher_mode == EVP_CIPH_CTR_MODE ? 1 : +- cipher_data[i].blocksize, +- cipher_data[i].keylen)) == NULL +- || !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i], +- cipher_data[i].ivlen) +- || !EVP_CIPHER_meth_set_flags(known_cipher_methods[i], +- cipher_data[i].flags +- | EVP_CIPH_CUSTOM_COPY +- | EVP_CIPH_CTRL_INIT +- | EVP_CIPH_FLAG_DEFAULT_ASN1) +- || !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init) +- || !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i], +- cipher_mode == EVP_CIPH_CTR_MODE ? +- ctr_do_cipher : +- cipher_do_cipher) +- || !EVP_CIPHER_meth_set_ctrl(known_cipher_methods[i], cipher_ctrl) +- || !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i], +- cipher_cleanup) +- || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i], +- sizeof(struct cipher_ctx))) { +- cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; +- EVP_CIPHER_meth_free(known_cipher_methods[i]); +- known_cipher_methods[i] = NULL; +- } else { +- cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; +-#ifdef CIOCGSESSINFO +- siop.ses = sess.ses; +- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { +- cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; +- } else { +- cipher_driver_info[i].driver_name = +- OPENSSL_strndup(siop.cipher_info.cra_driver_name, +- CRYPTODEV_MAX_ALG_NAME); +- if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)) +- cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; +- else +- cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; +- } +-#endif /* CIOCGSESSINFO */ +- } +- ioctl(cfd, CIOCFSESSION, &sess.ses); +- if (devcrypto_test_cipher(i)) { +- known_cipher_nids[known_cipher_nids_amount++] = +- cipher_data[i].nid; +- } +- } +-} +- +-static void rebuild_known_cipher_nids(ENGINE *e) +-{ +- size_t i; +- +- for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) { +- if (devcrypto_test_cipher(i)) +- known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid; +- } +- ENGINE_unregister_ciphers(e); +- ENGINE_register_ciphers(e); +-} +- +-static const EVP_CIPHER *get_cipher_method(int nid) +-{ +- size_t i = get_cipher_data_index(nid); +- +- if (i == (size_t)-1) +- return NULL; +- return known_cipher_methods[i]; +-} +- +-static int get_cipher_nids(const int **nids) +-{ +- *nids = known_cipher_nids; +- return known_cipher_nids_amount; +-} +- +-static void destroy_cipher_method(int nid) +-{ +- size_t i = get_cipher_data_index(nid); +- +- EVP_CIPHER_meth_free(known_cipher_methods[i]); +- known_cipher_methods[i] = NULL; +-} +- +-static void destroy_all_cipher_methods(void) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(cipher_data); i++) { +- destroy_cipher_method(cipher_data[i].nid); +- OPENSSL_free(cipher_driver_info[i].driver_name); +- cipher_driver_info[i].driver_name = NULL; +- } +-} +- +-static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher, +- const int **nids, int nid) +-{ +- if (cipher == NULL) +- return get_cipher_nids(nids); +- +- *cipher = get_cipher_method(nid); +- +- return *cipher != NULL; +-} +- +-static void devcrypto_select_all_ciphers(int *cipher_list) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(cipher_data); i++) +- cipher_list[i] = 1; +-} +- +-static int cryptodev_select_cipher_cb(const char *str, int len, void *usr) +-{ +- int *cipher_list = (int *)usr; +- char *name; +- const EVP_CIPHER *EVP; +- size_t i; +- +- if (len == 0) +- return 1; +- if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) +- return 0; +- EVP = EVP_get_cipherbyname(name); +- if (EVP == NULL) +- fprintf(stderr, "devcrypto: unknown cipher %s\n", name); +- else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1) +- cipher_list[i] = 1; +- else +- fprintf(stderr, "devcrypto: cipher %s not available\n", name); +- OPENSSL_free(name); +- return 1; +-} +- +-static void dump_cipher_info(void) +-{ +- size_t i; +- const char *name; +- +- fprintf (stderr, "Information about ciphers supported by the /dev/crypto" +- " engine:\n"); +-#ifndef CIOCGSESSINFO +- fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); +-#endif +- for (i = 0; i < OSSL_NELEM(cipher_data); i++) { +- name = OBJ_nid2sn(cipher_data[i].nid); +- fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ", +- name ? name : "unknown", cipher_data[i].nid, +- cipher_data[i].devcryptoid); +- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION ) { +- fprintf (stderr, "CIOCGSESSION (session open call) failed\n"); +- continue; +- } +- fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ? +- cipher_driver_info[i].driver_name : "unknown"); +- if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) +- fprintf(stderr, "(hw accelerated)"); +- else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) +- fprintf(stderr, "(software)"); +- else +- fprintf(stderr, "(acceleration status unknown)"); +- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) +- fprintf (stderr, ". Cipher setup failed"); +- fprintf(stderr, "\n"); +- } +- fprintf(stderr, "\n"); +-} +- +-/* +- * We only support digests if the cryptodev implementation supports multiple +- * data updates and session copying. Otherwise, we would be forced to maintain +- * a cache, which is perilous if there's a lot of data coming in (if someone +- * wants to checksum an OpenSSL tarball, for example). +- */ +-#if defined(CIOCCPHASH) && defined(COP_FLAG_UPDATE) && defined(COP_FLAG_FINAL) +-#define IMPLEMENT_DIGEST +- +-/****************************************************************************** +- * +- * Digests +- * +- * Because they all do the same basic operation, we have only one set of +- * method functions for them all to share, and a mapping table between +- * NIDs and cryptodev IDs, with all the necessary size data. +- * +- *****/ +- +-struct digest_ctx { +- struct session_op sess; +- /* This signals that the init function was called, not that it succeeded. */ +- int init_called; +- unsigned char digest_res[HASH_MAX_LEN]; +-}; +- +-static const struct digest_data_st { +- int nid; +- int blocksize; +- int digestlen; +- int devcryptoid; +-} digest_data[] = { +-#ifndef OPENSSL_NO_MD5 +- { NID_md5, /* MD5_CBLOCK */ 64, 16, CRYPTO_MD5 }, +-#endif +- { NID_sha1, SHA_CBLOCK, 20, CRYPTO_SHA1 }, +-#ifndef OPENSSL_NO_RMD160 +-# if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_RIPEMD160) +- { NID_ripemd160, /* RIPEMD160_CBLOCK */ 64, 20, CRYPTO_RIPEMD160 }, +-# endif +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_224) +- { NID_sha224, SHA256_CBLOCK, 224 / 8, CRYPTO_SHA2_224 }, +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_256) +- { NID_sha256, SHA256_CBLOCK, 256 / 8, CRYPTO_SHA2_256 }, +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_384) +- { NID_sha384, SHA512_CBLOCK, 384 / 8, CRYPTO_SHA2_384 }, +-#endif +-#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_512) +- { NID_sha512, SHA512_CBLOCK, 512 / 8, CRYPTO_SHA2_512 }, +-#endif +-}; +- +-static size_t find_digest_data_index(int nid) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(digest_data); i++) +- if (nid == digest_data[i].nid) +- return i; +- return (size_t)-1; +-} +- +-static size_t get_digest_data_index(int nid) +-{ +- size_t i = find_digest_data_index(nid); +- +- if (i != (size_t)-1) +- return i; +- +- /* +- * Code further down must make sure that only NIDs in the table above +- * are used. If any other NID reaches this function, there's a grave +- * coding error further down. +- */ +- assert("Code that never should be reached" == NULL); +- return -1; +-} +- +-static const struct digest_data_st *get_digest_data(int nid) +-{ +- return &digest_data[get_digest_data_index(nid)]; +-} +- +-/* +- * Following are the five necessary functions to map OpenSSL functionality +- * with cryptodev: init, update, final, cleanup, and copy. +- */ +- +-static int digest_init(EVP_MD_CTX *ctx) +-{ +- struct digest_ctx *digest_ctx = +- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); +- const struct digest_data_st *digest_d = +- get_digest_data(EVP_MD_CTX_type(ctx)); +- +- digest_ctx->init_called = 1; +- +- memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess)); +- digest_ctx->sess.mac = digest_d->devcryptoid; +- if (ioctl(cfd, CIOCGSESSION, &digest_ctx->sess) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- +- return 1; +-} +- +-static int digest_op(struct digest_ctx *ctx, const void *src, size_t srclen, +- void *res, unsigned int flags) +-{ +- struct crypt_op cryp; +- +- memset(&cryp, 0, sizeof(cryp)); +- cryp.ses = ctx->sess.ses; +- cryp.len = srclen; +- cryp.src = (void *)src; +- cryp.dst = NULL; +- cryp.mac = res; +- cryp.flags = flags; +- return ioctl(cfd, CIOCCRYPT, &cryp); +-} +- +-static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) +-{ +- struct digest_ctx *digest_ctx = +- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); +- +- if (count == 0) +- return 1; +- +- if (digest_ctx == NULL) +- return 0; +- +- if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { +- if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0) +- return 1; +- } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) { +- return 1; +- } +- +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +-} +- +-static int digest_final(EVP_MD_CTX *ctx, unsigned char *md) +-{ +- struct digest_ctx *digest_ctx = +- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); +- +- if (md == NULL || digest_ctx == NULL) +- return 0; +- +- if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { +- memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx)); +- } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- +- return 1; +-} +- +-static int digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) +-{ +- struct digest_ctx *digest_from = +- (struct digest_ctx *)EVP_MD_CTX_md_data(from); +- struct digest_ctx *digest_to = +- (struct digest_ctx *)EVP_MD_CTX_md_data(to); +- struct cphash_op cphash; +- +- if (digest_from == NULL || digest_from->init_called != 1) +- return 1; +- +- if (!digest_init(to)) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- +- cphash.src_ses = digest_from->sess.ses; +- cphash.dst_ses = digest_to->sess.ses; +- if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { +- SYSerr(SYS_F_IOCTL, errno); +- return 0; +- } +- return 1; +-} +- +-static int digest_cleanup(EVP_MD_CTX *ctx) +-{ +- struct digest_ctx *digest_ctx = +- (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); +- +- if (digest_ctx == NULL) +- return 1; +- +- return clean_devcrypto_session(&digest_ctx->sess); +-} +- +-/* +- * Keep tables of known nids, associated methods, selected digests, and +- * driver info. +- * Note that known_digest_nids[] isn't necessarily indexed the same way as +- * digest_data[] above, which the other tables are. +- */ +-static int known_digest_nids[OSSL_NELEM(digest_data)]; +-static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */ +-static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, }; +-static int selected_digests[OSSL_NELEM(digest_data)]; +-static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)]; +- +-static int devcrypto_test_digest(size_t digest_data_index) +-{ +- return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE +- && selected_digests[digest_data_index] == 1 +- && (digest_driver_info[digest_data_index].accelerated +- == DEVCRYPTO_ACCELERATED +- || use_softdrivers == DEVCRYPTO_USE_SOFTWARE +- || (digest_driver_info[digest_data_index].accelerated +- != DEVCRYPTO_NOT_ACCELERATED +- && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); +-} +- +-static void rebuild_known_digest_nids(ENGINE *e) +-{ +- size_t i; +- +- for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) { +- if (devcrypto_test_digest(i)) +- known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; +- } +- ENGINE_unregister_digests(e); +- ENGINE_register_digests(e); +-} +- +-static void prepare_digest_methods(void) +-{ +- size_t i; +- struct session_op sess1, sess2; +-#ifdef CIOCGSESSINFO +- struct session_info_op siop; +-#endif +- struct cphash_op cphash; +- +- memset(&digest_driver_info, 0, sizeof(digest_driver_info)); +- +- memset(&sess1, 0, sizeof(sess1)); +- memset(&sess2, 0, sizeof(sess2)); +- +- for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); +- i++) { +- +- selected_digests[i] = 1; +- +- /* +- * Check that the digest is usable +- */ +- sess1.mac = digest_data[i].devcryptoid; +- sess2.ses = 0; +- if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; +- goto finish; +- } +- +-#ifdef CIOCGSESSINFO +- /* gather hardware acceleration info from the driver */ +- siop.ses = sess1.ses; +- if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { +- digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; +- } else { +- digest_driver_info[i].driver_name = +- OPENSSL_strndup(siop.hash_info.cra_driver_name, +- CRYPTODEV_MAX_ALG_NAME); +- if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY) +- digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; +- else +- digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; +- } +-#endif +- +- /* digest must be capable of hash state copy */ +- sess2.mac = sess1.mac; +- if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; +- goto finish; +- } +- cphash.src_ses = sess1.ses; +- cphash.dst_ses = sess2.ses; +- if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH; +- goto finish; +- } +- if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid, +- NID_undef)) == NULL +- || !EVP_MD_meth_set_input_blocksize(known_digest_methods[i], +- digest_data[i].blocksize) +- || !EVP_MD_meth_set_result_size(known_digest_methods[i], +- digest_data[i].digestlen) +- || !EVP_MD_meth_set_init(known_digest_methods[i], digest_init) +- || !EVP_MD_meth_set_update(known_digest_methods[i], digest_update) +- || !EVP_MD_meth_set_final(known_digest_methods[i], digest_final) +- || !EVP_MD_meth_set_copy(known_digest_methods[i], digest_copy) +- || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup) +- || !EVP_MD_meth_set_app_datasize(known_digest_methods[i], +- sizeof(struct digest_ctx))) { +- digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; +- EVP_MD_meth_free(known_digest_methods[i]); +- known_digest_methods[i] = NULL; +- goto finish; +- } +- digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; +-finish: +- ioctl(cfd, CIOCFSESSION, &sess1.ses); +- if (sess2.ses != 0) +- ioctl(cfd, CIOCFSESSION, &sess2.ses); +- if (devcrypto_test_digest(i)) +- known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; +- } +-} +- +-static const EVP_MD *get_digest_method(int nid) +-{ +- size_t i = get_digest_data_index(nid); +- +- if (i == (size_t)-1) +- return NULL; +- return known_digest_methods[i]; +-} +- +-static int get_digest_nids(const int **nids) +-{ +- *nids = known_digest_nids; +- return known_digest_nids_amount; +-} +- +-static void destroy_digest_method(int nid) +-{ +- size_t i = get_digest_data_index(nid); +- +- EVP_MD_meth_free(known_digest_methods[i]); +- known_digest_methods[i] = NULL; +-} +- +-static void destroy_all_digest_methods(void) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(digest_data); i++) { +- destroy_digest_method(digest_data[i].nid); +- OPENSSL_free(digest_driver_info[i].driver_name); +- digest_driver_info[i].driver_name = NULL; +- } +-} +- +-static int devcrypto_digests(ENGINE *e, const EVP_MD **digest, +- const int **nids, int nid) +-{ +- if (digest == NULL) +- return get_digest_nids(nids); +- +- *digest = get_digest_method(nid); +- +- return *digest != NULL; +-} +- +-static void devcrypto_select_all_digests(int *digest_list) +-{ +- size_t i; +- +- for (i = 0; i < OSSL_NELEM(digest_data); i++) +- digest_list[i] = 1; +-} +- +-static int cryptodev_select_digest_cb(const char *str, int len, void *usr) +-{ +- int *digest_list = (int *)usr; +- char *name; +- const EVP_MD *EVP; +- size_t i; +- +- if (len == 0) +- return 1; +- if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) +- return 0; +- EVP = EVP_get_digestbyname(name); +- if (EVP == NULL) +- fprintf(stderr, "devcrypto: unknown digest %s\n", name); +- else if ((i = find_digest_data_index(EVP_MD_type(EVP))) != (size_t)-1) +- digest_list[i] = 1; +- else +- fprintf(stderr, "devcrypto: digest %s not available\n", name); +- OPENSSL_free(name); +- return 1; +-} +- +-static void dump_digest_info(void) +-{ +- size_t i; +- const char *name; +- +- fprintf (stderr, "Information about digests supported by the /dev/crypto" +- " engine:\n"); +-#ifndef CIOCGSESSINFO +- fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); +-#endif +- +- for (i = 0; i < OSSL_NELEM(digest_data); i++) { +- name = OBJ_nid2sn(digest_data[i].nid); +- fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s", +- name ? name : "unknown", digest_data[i].nid, +- digest_data[i].devcryptoid, +- digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown"); +- if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) { +- fprintf (stderr, ". CIOCGSESSION (session open) failed\n"); +- continue; +- } +- if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) +- fprintf(stderr, " (hw accelerated)"); +- else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) +- fprintf(stderr, " (software)"); +- else +- fprintf(stderr, " (acceleration status unknown)"); +- if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) +- fprintf (stderr, ". Cipher setup failed\n"); +- else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH) +- fprintf(stderr, ", CIOCCPHASH failed\n"); +- else +- fprintf(stderr, ", CIOCCPHASH capable\n"); +- } +- fprintf(stderr, "\n"); +-} +- +-#endif +- +-/****************************************************************************** +- * +- * CONTROL COMMANDS +- * +- *****/ +- +-#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE +-#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1) +-#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2) +-#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3) +- +-/* Helper macros for CPP string composition */ +-#ifndef OPENSSL_MSTR +-# define OPENSSL_MSTR_HELPER(x) #x +-# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x) +-#endif +- +-static const ENGINE_CMD_DEFN devcrypto_cmds[] = { +-#ifdef CIOCGSESSINFO +- {DEVCRYPTO_CMD_USE_SOFTDRIVERS, +- "USE_SOFTDRIVERS", +- "specifies whether to use software (not accelerated) drivers (" +- OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, " +- OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, " +- OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE) +- "=use if acceleration can't be determined) [default=" +- OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS) "]", +- ENGINE_CMD_FLAG_NUMERIC}, +-#endif +- +- {DEVCRYPTO_CMD_CIPHERS, +- "CIPHERS", +- "either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]", +- ENGINE_CMD_FLAG_STRING}, +- +-#ifdef IMPLEMENT_DIGEST +- {DEVCRYPTO_CMD_DIGESTS, +- "DIGESTS", +- "either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]", +- ENGINE_CMD_FLAG_STRING}, +-#endif +- +- {DEVCRYPTO_CMD_DUMP_INFO, +- "DUMP_INFO", +- "dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'", +- ENGINE_CMD_FLAG_NO_INPUT}, +- +- {0, NULL, NULL, 0} +-}; +- +-static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) +-{ +- int *new_list; +- switch (cmd) { +-#ifdef CIOCGSESSINFO +- case DEVCRYPTO_CMD_USE_SOFTDRIVERS: +- switch (i) { +- case DEVCRYPTO_REQUIRE_ACCELERATED: +- case DEVCRYPTO_USE_SOFTWARE: +- case DEVCRYPTO_REJECT_SOFTWARE: +- break; +- default: +- fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i); +- return 0; +- } +- if (use_softdrivers == i) +- return 1; +- use_softdrivers = i; +-#ifdef IMPLEMENT_DIGEST +- rebuild_known_digest_nids(e); +-#endif +- rebuild_known_cipher_nids(e); +- return 1; +-#endif /* CIOCGSESSINFO */ +- +- case DEVCRYPTO_CMD_CIPHERS: +- if (p == NULL) +- return 1; +- if (strcasecmp((const char *)p, "ALL") == 0) { +- devcrypto_select_all_ciphers(selected_ciphers); +- } else if (strcasecmp((const char*)p, "NONE") == 0) { +- memset(selected_ciphers, 0, sizeof(selected_ciphers)); +- } else { +- new_list=OPENSSL_zalloc(sizeof(selected_ciphers)); +- if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) { +- OPENSSL_free(new_list); +- return 0; +- } +- memcpy(selected_ciphers, new_list, sizeof(selected_ciphers)); +- OPENSSL_free(new_list); +- } +- rebuild_known_cipher_nids(e); +- return 1; +- +-#ifdef IMPLEMENT_DIGEST +- case DEVCRYPTO_CMD_DIGESTS: +- if (p == NULL) +- return 1; +- if (strcasecmp((const char *)p, "ALL") == 0) { +- devcrypto_select_all_digests(selected_digests); +- } else if (strcasecmp((const char*)p, "NONE") == 0) { +- memset(selected_digests, 0, sizeof(selected_digests)); +- } else { +- new_list=OPENSSL_zalloc(sizeof(selected_digests)); +- if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) { +- OPENSSL_free(new_list); +- return 0; +- } +- memcpy(selected_digests, new_list, sizeof(selected_digests)); +- OPENSSL_free(new_list); +- } +- rebuild_known_digest_nids(e); +- return 1; +-#endif /* IMPLEMENT_DIGEST */ +- +- case DEVCRYPTO_CMD_DUMP_INFO: +- dump_cipher_info(); +-#ifdef IMPLEMENT_DIGEST +- dump_digest_info(); +-#endif +- return 1; +- +- default: +- break; +- } +- return 0; +-} +- +-/****************************************************************************** +- * +- * LOAD / UNLOAD +- * +- *****/ +- +-static int devcrypto_unload(ENGINE *e) +-{ +- destroy_all_cipher_methods(); +-#ifdef IMPLEMENT_DIGEST +- destroy_all_digest_methods(); +-#endif +- +- close(cfd); +- +- return 1; +-} +-/* +- * This engine is always built into libcrypto, so it doesn't offer any +- * ability to be dynamically loadable. +- */ +-void engine_load_devcrypto_int() +-{ +- ENGINE *e = NULL; +- +- if ((cfd = open("/dev/crypto", O_RDWR, 0)) < 0) { +-#ifndef ENGINE_DEVCRYPTO_DEBUG +- if (errno != ENOENT) +-#endif +- fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno)); +- return; +- } +- +- if ((e = ENGINE_new()) == NULL +- || !ENGINE_set_destroy_function(e, devcrypto_unload)) { +- ENGINE_free(e); +- /* +- * We know that devcrypto_unload() won't be called when one of the +- * above two calls have failed, so we close cfd explicitly here to +- * avoid leaking resources. +- */ +- close(cfd); +- return; +- } +- +- prepare_cipher_methods(); +-#ifdef IMPLEMENT_DIGEST +- prepare_digest_methods(); +-#endif +- +- if (!ENGINE_set_id(e, "devcrypto") +- || !ENGINE_set_name(e, "/dev/crypto engine") +- || !ENGINE_set_cmd_defns(e, devcrypto_cmds) +- || !ENGINE_set_ctrl_function(e, devcrypto_ctrl) +- +-/* +- * Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD +- * implementations, it seems to only exist in FreeBSD, and regarding the +- * parameters in its crypt_kop, the manual crypto(4) has this to say: +- * +- * The semantics of these arguments are currently undocumented. +- * +- * Reading through the FreeBSD source code doesn't give much more than +- * their CRK_MOD_EXP implementation for ubsec. +- * +- * It doesn't look much better with cryptodev-linux. They have the crypt_kop +- * structure as well as the command (CRK_*) in cryptodev.h, but no support +- * seems to be implemented at all for the moment. +- * +- * At the time of writing, it seems impossible to write proper support for +- * FreeBSD's asym features without some very deep knowledge and access to +- * specific kernel modules. +- * +- * /Richard Levitte, 2017-05-11 +- */ +-#if 0 +-# ifndef OPENSSL_NO_RSA +- || !ENGINE_set_RSA(e, devcrypto_rsa) +-# endif +-# ifndef OPENSSL_NO_DSA +- || !ENGINE_set_DSA(e, devcrypto_dsa) +-# endif +-# ifndef OPENSSL_NO_DH +- || !ENGINE_set_DH(e, devcrypto_dh) +-# endif +-# ifndef OPENSSL_NO_EC +- || !ENGINE_set_EC(e, devcrypto_ec) +-# endif +-#endif +- || !ENGINE_set_ciphers(e, devcrypto_ciphers) +-#ifdef IMPLEMENT_DIGEST +- || !ENGINE_set_digests(e, devcrypto_digests) +-#endif +- ) { +- ENGINE_free(e); +- return; +- } +- +- ENGINE_add(e); +- ENGINE_free(e); /* Loose our local reference */ +- ERR_clear_error(); +-} +--- /dev/null ++++ b/engines/e_devcrypto.c +@@ -0,0 +1,1315 @@ ++/* ++ * Copyright 2017-2019 The OpenSSL Project Authors. All Rights Reserved. ++ * ++ * Licensed under the OpenSSL license (the "License"). You may not use ++ * this file except in compliance with the License. You can obtain a copy ++ * in the file LICENSE in the source distribution or at ++ * https://www.openssl.org/source/license.html ++ */ ++ ++#include "../e_os.h" ++#include <string.h> ++#include <sys/types.h> ++#include <sys/stat.h> ++#include <fcntl.h> ++#include <sys/ioctl.h> ++#include <unistd.h> ++#include <assert.h> ++ ++#include <openssl/conf.h> ++#include <openssl/evp.h> ++#include <openssl/err.h> ++#include <openssl/engine.h> ++#include <openssl/objects.h> ++#include <crypto/cryptodev.h> ++ ++/* #define ENGINE_DEVCRYPTO_DEBUG */ ++ ++#ifdef CRYPTO_ALGORITHM_MIN ++# define CHECK_BSD_STYLE_MACROS ++#endif ++ ++#define engine_devcrypto_id "devcrypto" ++ ++/* ++ * ONE global file descriptor for all sessions. This allows operations ++ * such as digest session data copying (see digest_copy()), but is also ++ * saner... why re-open /dev/crypto for every session? ++ */ ++static int cfd = -1; ++#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */ ++#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */ ++#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */ ++ ++#define DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS DEVCRYPTO_REJECT_SOFTWARE ++static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS; ++ ++/* ++ * cipher/digest status & acceleration definitions ++ * Make sure the defaults are set to 0 ++ */ ++struct driver_info_st { ++ enum devcrypto_status_t { ++ DEVCRYPTO_STATUS_FAILURE = -3, /* unusable for other reason */ ++ DEVCRYPTO_STATUS_NO_CIOCCPHASH = -2, /* hash state copy not supported */ ++ DEVCRYPTO_STATUS_NO_CIOCGSESSION = -1, /* session open failed */ ++ DEVCRYPTO_STATUS_UNKNOWN = 0, /* not tested yet */ ++ DEVCRYPTO_STATUS_USABLE = 1 /* algo can be used */ ++ } status; ++ ++ enum devcrypto_accelerated_t { ++ DEVCRYPTO_NOT_ACCELERATED = -1, /* software implemented */ ++ DEVCRYPTO_ACCELERATION_UNKNOWN = 0, /* acceleration support unkown */ ++ DEVCRYPTO_ACCELERATED = 1 /* hardware accelerated */ ++ } accelerated; ++ ++ char *driver_name; ++}; ++ ++#ifdef OPENSSL_NO_DYNAMIC_ENGINE ++void engine_load_devcrypto_int(void); ++#endif ++ ++static int clean_devcrypto_session(struct session_op *sess) { ++ if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ memset(sess, 0, sizeof(struct session_op)); ++ return 1; ++} ++ ++/****************************************************************************** ++ * ++ * Ciphers ++ * ++ * Because they all do the same basic operation, we have only one set of ++ * method functions for them all to share, and a mapping table between ++ * NIDs and cryptodev IDs, with all the necessary size data. ++ * ++ *****/ ++ ++struct cipher_ctx { ++ struct session_op sess; ++ int op; /* COP_ENCRYPT or COP_DECRYPT */ ++ unsigned long mode; /* EVP_CIPH_*_MODE */ ++ ++ /* to handle ctr mode being a stream cipher */ ++ unsigned char partial[EVP_MAX_BLOCK_LENGTH]; ++ unsigned int blocksize, num; ++}; ++ ++static const struct cipher_data_st { ++ int nid; ++ int blocksize; ++ int keylen; ++ int ivlen; ++ int flags; ++ int devcryptoid; ++} cipher_data[] = { ++#ifndef OPENSSL_NO_DES ++ { NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC }, ++ { NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC }, ++#endif ++#ifndef OPENSSL_NO_BF ++ { NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC }, ++#endif ++#ifndef OPENSSL_NO_CAST ++ { NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC }, ++#endif ++ { NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, ++ { NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, ++ { NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, ++#ifndef OPENSSL_NO_RC4 ++ { NID_rc4, 1, 16, 0, EVP_CIPH_STREAM_CIPHER, CRYPTO_ARC4 }, ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR) ++ { NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, ++ { NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, ++ { NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, ++#endif ++#if 0 /* Not yet supported */ ++ { NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, ++ { NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB) ++ { NID_aes_128_ecb, 16, 128 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, ++ { NID_aes_192_ecb, 16, 192 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, ++ { NID_aes_256_ecb, 16, 256 / 8, 0, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, ++#endif ++#if 0 /* Not yet supported */ ++ { NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, ++ { NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, ++ { NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, ++#endif ++#ifndef OPENSSL_NO_CAMELLIA ++ { NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, ++ CRYPTO_CAMELLIA_CBC }, ++ { NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, ++ CRYPTO_CAMELLIA_CBC }, ++ { NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, ++ CRYPTO_CAMELLIA_CBC }, ++#endif ++}; ++ ++static size_t find_cipher_data_index(int nid) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) ++ if (nid == cipher_data[i].nid) ++ return i; ++ return (size_t)-1; ++} ++ ++static size_t get_cipher_data_index(int nid) ++{ ++ size_t i = find_cipher_data_index(nid); ++ ++ if (i != (size_t)-1) ++ return i; ++ ++ /* ++ * Code further down must make sure that only NIDs in the table above ++ * are used. If any other NID reaches this function, there's a grave ++ * coding error further down. ++ */ ++ assert("Code that never should be reached" == NULL); ++ return -1; ++} ++ ++static const struct cipher_data_st *get_cipher_data(int nid) ++{ ++ return &cipher_data[get_cipher_data_index(nid)]; ++} ++ ++/* ++ * Following are the three necessary functions to map OpenSSL functionality ++ * with cryptodev. ++ */ ++ ++static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, ++ const unsigned char *iv, int enc) ++{ ++ struct cipher_ctx *cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); ++ const struct cipher_data_st *cipher_d = ++ get_cipher_data(EVP_CIPHER_CTX_nid(ctx)); ++ ++ /* cleanup a previous session */ ++ if (cipher_ctx->sess.ses != 0 && ++ clean_devcrypto_session(&cipher_ctx->sess) == 0) ++ return 0; ++ ++ cipher_ctx->sess.cipher = cipher_d->devcryptoid; ++ cipher_ctx->sess.keylen = cipher_d->keylen; ++ cipher_ctx->sess.key = (void *)key; ++ cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT; ++ cipher_ctx->mode = cipher_d->flags & EVP_CIPH_MODE; ++ cipher_ctx->blocksize = cipher_d->blocksize; ++ if (ioctl(cfd, CIOCGSESSION, &cipher_ctx->sess) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, ++ const unsigned char *in, size_t inl) ++{ ++ struct cipher_ctx *cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); ++ struct crypt_op cryp; ++ unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx); ++#if !defined(COP_FLAG_WRITE_IV) ++ unsigned char saved_iv[EVP_MAX_IV_LENGTH]; ++ const unsigned char *ivptr; ++ size_t nblocks, ivlen; ++#endif ++ ++ memset(&cryp, 0, sizeof(cryp)); ++ cryp.ses = cipher_ctx->sess.ses; ++ cryp.len = inl; ++ cryp.src = (void *)in; ++ cryp.dst = (void *)out; ++ cryp.iv = (void *)iv; ++ cryp.op = cipher_ctx->op; ++#if !defined(COP_FLAG_WRITE_IV) ++ cryp.flags = 0; ++ ++ ivlen = EVP_CIPHER_CTX_iv_length(ctx); ++ if (ivlen > 0) ++ switch (cipher_ctx->mode) { ++ case EVP_CIPH_CBC_MODE: ++ assert(inl >= ivlen); ++ if (!EVP_CIPHER_CTX_encrypting(ctx)) { ++ ivptr = in + inl - ivlen; ++ memcpy(saved_iv, ivptr, ivlen); ++ } ++ break; ++ ++ case EVP_CIPH_CTR_MODE: ++ break; ++ ++ default: /* should not happen */ ++ return 0; ++ } ++#else ++ cryp.flags = COP_FLAG_WRITE_IV; ++#endif ++ ++ if (ioctl(cfd, CIOCCRYPT, &cryp) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ ++#if !defined(COP_FLAG_WRITE_IV) ++ if (ivlen > 0) ++ switch (cipher_ctx->mode) { ++ case EVP_CIPH_CBC_MODE: ++ assert(inl >= ivlen); ++ if (EVP_CIPHER_CTX_encrypting(ctx)) ++ ivptr = out + inl - ivlen; ++ else ++ ivptr = saved_iv; ++ ++ memcpy(iv, ivptr, ivlen); ++ break; ++ ++ case EVP_CIPH_CTR_MODE: ++ nblocks = (inl + cipher_ctx->blocksize - 1) ++ / cipher_ctx->blocksize; ++ do { ++ ivlen--; ++ nblocks += iv[ivlen]; ++ iv[ivlen] = (uint8_t) nblocks; ++ nblocks >>= 8; ++ } while (ivlen); ++ break; ++ ++ default: /* should not happen */ ++ return 0; ++ } ++#endif ++ ++ return 1; ++} ++ ++static int ctr_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, ++ const unsigned char *in, size_t inl) ++{ ++ struct cipher_ctx *cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); ++ size_t nblocks, len; ++ ++ /* initial partial block */ ++ while (cipher_ctx->num && inl) { ++ (*out++) = *(in++) ^ cipher_ctx->partial[cipher_ctx->num]; ++ --inl; ++ cipher_ctx->num = (cipher_ctx->num + 1) % cipher_ctx->blocksize; ++ } ++ ++ /* full blocks */ ++ if (inl > (unsigned int) cipher_ctx->blocksize) { ++ nblocks = inl/cipher_ctx->blocksize; ++ len = nblocks * cipher_ctx->blocksize; ++ if (cipher_do_cipher(ctx, out, in, len) < 1) ++ return 0; ++ inl -= len; ++ out += len; ++ in += len; ++ } ++ ++ /* final partial block */ ++ if (inl) { ++ memset(cipher_ctx->partial, 0, cipher_ctx->blocksize); ++ if (cipher_do_cipher(ctx, cipher_ctx->partial, cipher_ctx->partial, ++ cipher_ctx->blocksize) < 1) ++ return 0; ++ while (inl--) { ++ out[cipher_ctx->num] = in[cipher_ctx->num] ++ ^ cipher_ctx->partial[cipher_ctx->num]; ++ cipher_ctx->num++; ++ } ++ } ++ ++ return 1; ++} ++ ++static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2) ++{ ++ struct cipher_ctx *cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); ++ EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2; ++ struct cipher_ctx *to_cipher_ctx; ++ ++ switch (type) { ++ ++ case EVP_CTRL_COPY: ++ if (cipher_ctx == NULL) ++ return 1; ++ /* when copying the context, a new session needs to be initialized */ ++ to_cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx); ++ memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess)); ++ return cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx), ++ (cipher_ctx->op == COP_ENCRYPT)); ++ ++ case EVP_CTRL_INIT: ++ memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess)); ++ return 1; ++ ++ default: ++ break; ++ } ++ ++ return -1; ++} ++ ++static int cipher_cleanup(EVP_CIPHER_CTX *ctx) ++{ ++ struct cipher_ctx *cipher_ctx = ++ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); ++ ++ return clean_devcrypto_session(&cipher_ctx->sess); ++} ++ ++/* ++ * Keep tables of known nids, associated methods, selected ciphers, and driver ++ * info. ++ * Note that known_cipher_nids[] isn't necessarily indexed the same way as ++ * cipher_data[] above, which the other tables are. ++ */ ++static int known_cipher_nids[OSSL_NELEM(cipher_data)]; ++static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */ ++static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, }; ++static int selected_ciphers[OSSL_NELEM(cipher_data)]; ++static struct driver_info_st cipher_driver_info[OSSL_NELEM(cipher_data)]; ++ ++ ++static int devcrypto_test_cipher(size_t cipher_data_index) ++{ ++ return (cipher_driver_info[cipher_data_index].status == DEVCRYPTO_STATUS_USABLE ++ && selected_ciphers[cipher_data_index] == 1 ++ && (cipher_driver_info[cipher_data_index].accelerated ++ == DEVCRYPTO_ACCELERATED ++ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE ++ || (cipher_driver_info[cipher_data_index].accelerated ++ != DEVCRYPTO_NOT_ACCELERATED ++ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); ++} ++ ++static void prepare_cipher_methods(void) ++{ ++ size_t i; ++ struct session_op sess; ++ unsigned long cipher_mode; ++#ifdef CIOCGSESSINFO ++ struct session_info_op siop; ++#endif ++ ++ memset(&cipher_driver_info, 0, sizeof(cipher_driver_info)); ++ ++ memset(&sess, 0, sizeof(sess)); ++ sess.key = (void *)"01234567890123456789012345678901234567890123456789"; ++ ++ for (i = 0, known_cipher_nids_amount = 0; ++ i < OSSL_NELEM(cipher_data); i++) { ++ ++ selected_ciphers[i] = 1; ++ /* ++ * Check that the cipher is usable ++ */ ++ sess.cipher = cipher_data[i].devcryptoid; ++ sess.keylen = cipher_data[i].keylen; ++ if (ioctl(cfd, CIOCGSESSION, &sess) < 0) { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; ++ continue; ++ } ++ ++ cipher_mode = cipher_data[i].flags & EVP_CIPH_MODE; ++ ++ if ((known_cipher_methods[i] = ++ EVP_CIPHER_meth_new(cipher_data[i].nid, ++ cipher_mode == EVP_CIPH_CTR_MODE ? 1 : ++ cipher_data[i].blocksize, ++ cipher_data[i].keylen)) == NULL ++ || !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i], ++ cipher_data[i].ivlen) ++ || !EVP_CIPHER_meth_set_flags(known_cipher_methods[i], ++ cipher_data[i].flags ++ | EVP_CIPH_CUSTOM_COPY ++ | EVP_CIPH_CTRL_INIT ++ | EVP_CIPH_FLAG_DEFAULT_ASN1) ++ || !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init) ++ || !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i], ++ cipher_mode == EVP_CIPH_CTR_MODE ? ++ ctr_do_cipher : ++ cipher_do_cipher) ++ || !EVP_CIPHER_meth_set_ctrl(known_cipher_methods[i], cipher_ctrl) ++ || !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i], ++ cipher_cleanup) ++ || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i], ++ sizeof(struct cipher_ctx))) { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; ++ EVP_CIPHER_meth_free(known_cipher_methods[i]); ++ known_cipher_methods[i] = NULL; ++ } else { ++ cipher_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; ++#ifdef CIOCGSESSINFO ++ siop.ses = sess.ses; ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { ++ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; ++ } else { ++ cipher_driver_info[i].driver_name = ++ OPENSSL_strndup(siop.cipher_info.cra_driver_name, ++ CRYPTODEV_MAX_ALG_NAME); ++ if (!(siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY)) ++ cipher_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ else ++ cipher_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ } ++#endif /* CIOCGSESSINFO */ ++ } ++ ioctl(cfd, CIOCFSESSION, &sess.ses); ++ if (devcrypto_test_cipher(i)) { ++ known_cipher_nids[known_cipher_nids_amount++] = ++ cipher_data[i].nid; ++ } ++ } ++} ++ ++static void rebuild_known_cipher_nids(ENGINE *e) ++{ ++ size_t i; ++ ++ for (i = 0, known_cipher_nids_amount = 0; i < OSSL_NELEM(cipher_data); i++) { ++ if (devcrypto_test_cipher(i)) ++ known_cipher_nids[known_cipher_nids_amount++] = cipher_data[i].nid; ++ } ++ ENGINE_unregister_ciphers(e); ++ ENGINE_register_ciphers(e); ++} ++ ++static const EVP_CIPHER *get_cipher_method(int nid) ++{ ++ size_t i = get_cipher_data_index(nid); ++ ++ if (i == (size_t)-1) ++ return NULL; ++ return known_cipher_methods[i]; ++} ++ ++static int get_cipher_nids(const int **nids) ++{ ++ *nids = known_cipher_nids; ++ return known_cipher_nids_amount; ++} ++ ++static void destroy_cipher_method(int nid) ++{ ++ size_t i = get_cipher_data_index(nid); ++ ++ EVP_CIPHER_meth_free(known_cipher_methods[i]); ++ known_cipher_methods[i] = NULL; ++} ++ ++static void destroy_all_cipher_methods(void) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) { ++ destroy_cipher_method(cipher_data[i].nid); ++ OPENSSL_free(cipher_driver_info[i].driver_name); ++ cipher_driver_info[i].driver_name = NULL; ++ } ++} ++ ++static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher, ++ const int **nids, int nid) ++{ ++ if (cipher == NULL) ++ return get_cipher_nids(nids); ++ ++ *cipher = get_cipher_method(nid); ++ ++ return *cipher != NULL; ++} ++ ++static void devcrypto_select_all_ciphers(int *cipher_list) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) ++ cipher_list[i] = 1; ++} ++ ++static int cryptodev_select_cipher_cb(const char *str, int len, void *usr) ++{ ++ int *cipher_list = (int *)usr; ++ char *name; ++ const EVP_CIPHER *EVP; ++ size_t i; ++ ++ if (len == 0) ++ return 1; ++ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) ++ return 0; ++ EVP = EVP_get_cipherbyname(name); ++ if (EVP == NULL) ++ fprintf(stderr, "devcrypto: unknown cipher %s\n", name); ++ else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1) ++ cipher_list[i] = 1; ++ else ++ fprintf(stderr, "devcrypto: cipher %s not available\n", name); ++ OPENSSL_free(name); ++ return 1; ++} ++ ++static void dump_cipher_info(void) ++{ ++ size_t i; ++ const char *name; ++ ++ fprintf (stderr, "Information about ciphers supported by the /dev/crypto" ++ " engine:\n"); ++#ifndef CIOCGSESSINFO ++ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); ++#endif ++ for (i = 0; i < OSSL_NELEM(cipher_data); i++) { ++ name = OBJ_nid2sn(cipher_data[i].nid); ++ fprintf (stderr, "Cipher %s, NID=%d, /dev/crypto info: id=%d, ", ++ name ? name : "unknown", cipher_data[i].nid, ++ cipher_data[i].devcryptoid); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION ) { ++ fprintf (stderr, "CIOCGSESSION (session open call) failed\n"); ++ continue; ++ } ++ fprintf (stderr, "driver=%s ", cipher_driver_info[i].driver_name ? ++ cipher_driver_info[i].driver_name : "unknown"); ++ if (cipher_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) ++ fprintf(stderr, "(hw accelerated)"); ++ else if (cipher_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) ++ fprintf(stderr, "(software)"); ++ else ++ fprintf(stderr, "(acceleration status unknown)"); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) ++ fprintf (stderr, ". Cipher setup failed"); ++ fprintf(stderr, "\n"); ++ } ++ fprintf(stderr, "\n"); ++} ++ ++/* ++ * We only support digests if the cryptodev implementation supports multiple ++ * data updates and session copying. Otherwise, we would be forced to maintain ++ * a cache, which is perilous if there's a lot of data coming in (if someone ++ * wants to checksum an OpenSSL tarball, for example). ++ */ ++#if defined(CIOCCPHASH) && defined(COP_FLAG_UPDATE) && defined(COP_FLAG_FINAL) ++#define IMPLEMENT_DIGEST ++ ++/****************************************************************************** ++ * ++ * Digests ++ * ++ * Because they all do the same basic operation, we have only one set of ++ * method functions for them all to share, and a mapping table between ++ * NIDs and cryptodev IDs, with all the necessary size data. ++ * ++ *****/ ++ ++struct digest_ctx { ++ struct session_op sess; ++ /* This signals that the init function was called, not that it succeeded. */ ++ int init_called; ++ unsigned char digest_res[HASH_MAX_LEN]; ++}; ++ ++static const struct digest_data_st { ++ int nid; ++ int blocksize; ++ int digestlen; ++ int devcryptoid; ++} digest_data[] = { ++#ifndef OPENSSL_NO_MD5 ++ { NID_md5, /* MD5_CBLOCK */ 64, 16, CRYPTO_MD5 }, ++#endif ++ { NID_sha1, SHA_CBLOCK, 20, CRYPTO_SHA1 }, ++#ifndef OPENSSL_NO_RMD160 ++# if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_RIPEMD160) ++ { NID_ripemd160, /* RIPEMD160_CBLOCK */ 64, 20, CRYPTO_RIPEMD160 }, ++# endif ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_224) ++ { NID_sha224, SHA256_CBLOCK, 224 / 8, CRYPTO_SHA2_224 }, ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_256) ++ { NID_sha256, SHA256_CBLOCK, 256 / 8, CRYPTO_SHA2_256 }, ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_384) ++ { NID_sha384, SHA512_CBLOCK, 384 / 8, CRYPTO_SHA2_384 }, ++#endif ++#if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_SHA2_512) ++ { NID_sha512, SHA512_CBLOCK, 512 / 8, CRYPTO_SHA2_512 }, ++#endif ++}; ++ ++static size_t find_digest_data_index(int nid) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) ++ if (nid == digest_data[i].nid) ++ return i; ++ return (size_t)-1; ++} ++ ++static size_t get_digest_data_index(int nid) ++{ ++ size_t i = find_digest_data_index(nid); ++ ++ if (i != (size_t)-1) ++ return i; ++ ++ /* ++ * Code further down must make sure that only NIDs in the table above ++ * are used. If any other NID reaches this function, there's a grave ++ * coding error further down. ++ */ ++ assert("Code that never should be reached" == NULL); ++ return -1; ++} ++ ++static const struct digest_data_st *get_digest_data(int nid) ++{ ++ return &digest_data[get_digest_data_index(nid)]; ++} ++ ++/* ++ * Following are the five necessary functions to map OpenSSL functionality ++ * with cryptodev: init, update, final, cleanup, and copy. ++ */ ++ ++static int digest_init(EVP_MD_CTX *ctx) ++{ ++ struct digest_ctx *digest_ctx = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); ++ const struct digest_data_st *digest_d = ++ get_digest_data(EVP_MD_CTX_type(ctx)); ++ ++ digest_ctx->init_called = 1; ++ ++ memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess)); ++ digest_ctx->sess.mac = digest_d->devcryptoid; ++ if (ioctl(cfd, CIOCGSESSION, &digest_ctx->sess) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ return 1; ++} ++ ++static int digest_op(struct digest_ctx *ctx, const void *src, size_t srclen, ++ void *res, unsigned int flags) ++{ ++ struct crypt_op cryp; ++ ++ memset(&cryp, 0, sizeof(cryp)); ++ cryp.ses = ctx->sess.ses; ++ cryp.len = srclen; ++ cryp.src = (void *)src; ++ cryp.dst = NULL; ++ cryp.mac = res; ++ cryp.flags = flags; ++ return ioctl(cfd, CIOCCRYPT, &cryp); ++} ++ ++static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) ++{ ++ struct digest_ctx *digest_ctx = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); ++ ++ if (count == 0) ++ return 1; ++ ++ if (digest_ctx == NULL) ++ return 0; ++ ++ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { ++ if (digest_op(digest_ctx, data, count, digest_ctx->digest_res, 0) >= 0) ++ return 1; ++ } else if (digest_op(digest_ctx, data, count, NULL, COP_FLAG_UPDATE) >= 0) { ++ return 1; ++ } ++ ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++} ++ ++static int digest_final(EVP_MD_CTX *ctx, unsigned char *md) ++{ ++ struct digest_ctx *digest_ctx = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); ++ ++ if (md == NULL || digest_ctx == NULL) ++ return 0; ++ ++ if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) { ++ memcpy(md, digest_ctx->digest_res, EVP_MD_CTX_size(ctx)); ++ } else if (digest_op(digest_ctx, NULL, 0, md, COP_FLAG_FINAL) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static int digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) ++{ ++ struct digest_ctx *digest_from = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(from); ++ struct digest_ctx *digest_to = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(to); ++ struct cphash_op cphash; ++ ++ if (digest_from == NULL || digest_from->init_called != 1) ++ return 1; ++ ++ if (!digest_init(to)) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ ++ cphash.src_ses = digest_from->sess.ses; ++ cphash.dst_ses = digest_to->sess.ses; ++ if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { ++ SYSerr(SYS_F_IOCTL, errno); ++ return 0; ++ } ++ return 1; ++} ++ ++static int digest_cleanup(EVP_MD_CTX *ctx) ++{ ++ struct digest_ctx *digest_ctx = ++ (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); ++ ++ if (digest_ctx == NULL) ++ return 1; ++ ++ return clean_devcrypto_session(&digest_ctx->sess); ++} ++ ++/* ++ * Keep tables of known nids, associated methods, selected digests, and ++ * driver info. ++ * Note that known_digest_nids[] isn't necessarily indexed the same way as ++ * digest_data[] above, which the other tables are. ++ */ ++static int known_digest_nids[OSSL_NELEM(digest_data)]; ++static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */ ++static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, }; ++static int selected_digests[OSSL_NELEM(digest_data)]; ++static struct driver_info_st digest_driver_info[OSSL_NELEM(digest_data)]; ++ ++static int devcrypto_test_digest(size_t digest_data_index) ++{ ++ return (digest_driver_info[digest_data_index].status == DEVCRYPTO_STATUS_USABLE ++ && selected_digests[digest_data_index] == 1 ++ && (digest_driver_info[digest_data_index].accelerated ++ == DEVCRYPTO_ACCELERATED ++ || use_softdrivers == DEVCRYPTO_USE_SOFTWARE ++ || (digest_driver_info[digest_data_index].accelerated ++ != DEVCRYPTO_NOT_ACCELERATED ++ && use_softdrivers == DEVCRYPTO_REJECT_SOFTWARE))); ++} ++ ++static void rebuild_known_digest_nids(ENGINE *e) ++{ ++ size_t i; ++ ++ for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); i++) { ++ if (devcrypto_test_digest(i)) ++ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; ++ } ++ ENGINE_unregister_digests(e); ++ ENGINE_register_digests(e); ++} ++ ++static void prepare_digest_methods(void) ++{ ++ size_t i; ++ struct session_op sess1, sess2; ++#ifdef CIOCGSESSINFO ++ struct session_info_op siop; ++#endif ++ struct cphash_op cphash; ++ ++ memset(&digest_driver_info, 0, sizeof(digest_driver_info)); ++ ++ memset(&sess1, 0, sizeof(sess1)); ++ memset(&sess2, 0, sizeof(sess2)); ++ ++ for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); ++ i++) { ++ ++ selected_digests[i] = 1; ++ ++ /* ++ * Check that the digest is usable ++ */ ++ sess1.mac = digest_data[i].devcryptoid; ++ sess2.ses = 0; ++ if (ioctl(cfd, CIOCGSESSION, &sess1) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCGSESSION; ++ goto finish; ++ } ++ ++#ifdef CIOCGSESSINFO ++ /* gather hardware acceleration info from the driver */ ++ siop.ses = sess1.ses; ++ if (ioctl(cfd, CIOCGSESSINFO, &siop) < 0) { ++ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATION_UNKNOWN; ++ } else { ++ digest_driver_info[i].driver_name = ++ OPENSSL_strndup(siop.hash_info.cra_driver_name, ++ CRYPTODEV_MAX_ALG_NAME); ++ if (siop.flags & SIOP_FLAG_KERNEL_DRIVER_ONLY) ++ digest_driver_info[i].accelerated = DEVCRYPTO_ACCELERATED; ++ else ++ digest_driver_info[i].accelerated = DEVCRYPTO_NOT_ACCELERATED; ++ } ++#endif ++ ++ /* digest must be capable of hash state copy */ ++ sess2.mac = sess1.mac; ++ if (ioctl(cfd, CIOCGSESSION, &sess2) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; ++ goto finish; ++ } ++ cphash.src_ses = sess1.ses; ++ cphash.dst_ses = sess2.ses; ++ if (ioctl(cfd, CIOCCPHASH, &cphash) < 0) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_NO_CIOCCPHASH; ++ goto finish; ++ } ++ if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid, ++ NID_undef)) == NULL ++ || !EVP_MD_meth_set_input_blocksize(known_digest_methods[i], ++ digest_data[i].blocksize) ++ || !EVP_MD_meth_set_result_size(known_digest_methods[i], ++ digest_data[i].digestlen) ++ || !EVP_MD_meth_set_init(known_digest_methods[i], digest_init) ++ || !EVP_MD_meth_set_update(known_digest_methods[i], digest_update) ++ || !EVP_MD_meth_set_final(known_digest_methods[i], digest_final) ++ || !EVP_MD_meth_set_copy(known_digest_methods[i], digest_copy) ++ || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup) ++ || !EVP_MD_meth_set_app_datasize(known_digest_methods[i], ++ sizeof(struct digest_ctx))) { ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_FAILURE; ++ EVP_MD_meth_free(known_digest_methods[i]); ++ known_digest_methods[i] = NULL; ++ goto finish; ++ } ++ digest_driver_info[i].status = DEVCRYPTO_STATUS_USABLE; ++finish: ++ ioctl(cfd, CIOCFSESSION, &sess1.ses); ++ if (sess2.ses != 0) ++ ioctl(cfd, CIOCFSESSION, &sess2.ses); ++ if (devcrypto_test_digest(i)) ++ known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; ++ } ++} ++ ++static const EVP_MD *get_digest_method(int nid) ++{ ++ size_t i = get_digest_data_index(nid); ++ ++ if (i == (size_t)-1) ++ return NULL; ++ return known_digest_methods[i]; ++} ++ ++static int get_digest_nids(const int **nids) ++{ ++ *nids = known_digest_nids; ++ return known_digest_nids_amount; ++} ++ ++static void destroy_digest_method(int nid) ++{ ++ size_t i = get_digest_data_index(nid); ++ ++ EVP_MD_meth_free(known_digest_methods[i]); ++ known_digest_methods[i] = NULL; ++} ++ ++static void destroy_all_digest_methods(void) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) { ++ destroy_digest_method(digest_data[i].nid); ++ OPENSSL_free(digest_driver_info[i].driver_name); ++ digest_driver_info[i].driver_name = NULL; ++ } ++} ++ ++static int devcrypto_digests(ENGINE *e, const EVP_MD **digest, ++ const int **nids, int nid) ++{ ++ if (digest == NULL) ++ return get_digest_nids(nids); ++ ++ *digest = get_digest_method(nid); ++ ++ return *digest != NULL; ++} ++ ++static void devcrypto_select_all_digests(int *digest_list) ++{ ++ size_t i; ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) ++ digest_list[i] = 1; ++} ++ ++static int cryptodev_select_digest_cb(const char *str, int len, void *usr) ++{ ++ int *digest_list = (int *)usr; ++ char *name; ++ const EVP_MD *EVP; ++ size_t i; ++ ++ if (len == 0) ++ return 1; ++ if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL) ++ return 0; ++ EVP = EVP_get_digestbyname(name); ++ if (EVP == NULL) ++ fprintf(stderr, "devcrypto: unknown digest %s\n", name); ++ else if ((i = find_digest_data_index(EVP_MD_type(EVP))) != (size_t)-1) ++ digest_list[i] = 1; ++ else ++ fprintf(stderr, "devcrypto: digest %s not available\n", name); ++ OPENSSL_free(name); ++ return 1; ++} ++ ++static void dump_digest_info(void) ++{ ++ size_t i; ++ const char *name; ++ ++ fprintf (stderr, "Information about digests supported by the /dev/crypto" ++ " engine:\n"); ++#ifndef CIOCGSESSINFO ++ fprintf(stderr, "CIOCGSESSINFO (session info call) unavailable\n"); ++#endif ++ ++ for (i = 0; i < OSSL_NELEM(digest_data); i++) { ++ name = OBJ_nid2sn(digest_data[i].nid); ++ fprintf (stderr, "Digest %s, NID=%d, /dev/crypto info: id=%d, driver=%s", ++ name ? name : "unknown", digest_data[i].nid, ++ digest_data[i].devcryptoid, ++ digest_driver_info[i].driver_name ? digest_driver_info[i].driver_name : "unknown"); ++ if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCGSESSION) { ++ fprintf (stderr, ". CIOCGSESSION (session open) failed\n"); ++ continue; ++ } ++ if (digest_driver_info[i].accelerated == DEVCRYPTO_ACCELERATED) ++ fprintf(stderr, " (hw accelerated)"); ++ else if (digest_driver_info[i].accelerated == DEVCRYPTO_NOT_ACCELERATED) ++ fprintf(stderr, " (software)"); ++ else ++ fprintf(stderr, " (acceleration status unknown)"); ++ if (cipher_driver_info[i].status == DEVCRYPTO_STATUS_FAILURE) ++ fprintf (stderr, ". Cipher setup failed\n"); ++ else if (digest_driver_info[i].status == DEVCRYPTO_STATUS_NO_CIOCCPHASH) ++ fprintf(stderr, ", CIOCCPHASH failed\n"); ++ else ++ fprintf(stderr, ", CIOCCPHASH capable\n"); ++ } ++ fprintf(stderr, "\n"); ++} ++ ++#endif ++ ++/****************************************************************************** ++ * ++ * CONTROL COMMANDS ++ * ++ *****/ ++ ++#define DEVCRYPTO_CMD_USE_SOFTDRIVERS ENGINE_CMD_BASE ++#define DEVCRYPTO_CMD_CIPHERS (ENGINE_CMD_BASE + 1) ++#define DEVCRYPTO_CMD_DIGESTS (ENGINE_CMD_BASE + 2) ++#define DEVCRYPTO_CMD_DUMP_INFO (ENGINE_CMD_BASE + 3) ++ ++/* Helper macros for CPP string composition */ ++#ifndef OPENSSL_MSTR ++# define OPENSSL_MSTR_HELPER(x) #x ++# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x) ++#endif ++ ++static const ENGINE_CMD_DEFN devcrypto_cmds[] = { ++#ifdef CIOCGSESSINFO ++ {DEVCRYPTO_CMD_USE_SOFTDRIVERS, ++ "USE_SOFTDRIVERS", ++ "specifies whether to use software (not accelerated) drivers (" ++ OPENSSL_MSTR(DEVCRYPTO_REQUIRE_ACCELERATED) "=use only accelerated drivers, " ++ OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, " ++ OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE) ++ "=use if acceleration can't be determined) [default=" ++ OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS) "]", ++ ENGINE_CMD_FLAG_NUMERIC}, ++#endif ++ ++ {DEVCRYPTO_CMD_CIPHERS, ++ "CIPHERS", ++ "either ALL, NONE, or a comma-separated list of ciphers to enable [default=ALL]", ++ ENGINE_CMD_FLAG_STRING}, ++ ++#ifdef IMPLEMENT_DIGEST ++ {DEVCRYPTO_CMD_DIGESTS, ++ "DIGESTS", ++ "either ALL, NONE, or a comma-separated list of digests to enable [default=ALL]", ++ ENGINE_CMD_FLAG_STRING}, ++#endif ++ ++ {DEVCRYPTO_CMD_DUMP_INFO, ++ "DUMP_INFO", ++ "dump info about each algorithm to stderr; use 'openssl engine -pre DUMP_INFO devcrypto'", ++ ENGINE_CMD_FLAG_NO_INPUT}, ++ ++ {0, NULL, NULL, 0} ++}; ++ ++static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) ++{ ++ int *new_list; ++ switch (cmd) { ++#ifdef CIOCGSESSINFO ++ case DEVCRYPTO_CMD_USE_SOFTDRIVERS: ++ switch (i) { ++ case DEVCRYPTO_REQUIRE_ACCELERATED: ++ case DEVCRYPTO_USE_SOFTWARE: ++ case DEVCRYPTO_REJECT_SOFTWARE: ++ break; ++ default: ++ fprintf(stderr, "devcrypto: invalid value (%ld) for USE_SOFTDRIVERS\n", i); ++ return 0; ++ } ++ if (use_softdrivers == i) ++ return 1; ++ use_softdrivers = i; ++#ifdef IMPLEMENT_DIGEST ++ rebuild_known_digest_nids(e); ++#endif ++ rebuild_known_cipher_nids(e); ++ return 1; ++#endif /* CIOCGSESSINFO */ ++ ++ case DEVCRYPTO_CMD_CIPHERS: ++ if (p == NULL) ++ return 1; ++ if (strcasecmp((const char *)p, "ALL") == 0) { ++ devcrypto_select_all_ciphers(selected_ciphers); ++ } else if (strcasecmp((const char*)p, "NONE") == 0) { ++ memset(selected_ciphers, 0, sizeof(selected_ciphers)); ++ } else { ++ new_list=OPENSSL_zalloc(sizeof(selected_ciphers)); ++ if (!CONF_parse_list(p, ',', 1, cryptodev_select_cipher_cb, new_list)) { ++ OPENSSL_free(new_list); ++ return 0; ++ } ++ memcpy(selected_ciphers, new_list, sizeof(selected_ciphers)); ++ OPENSSL_free(new_list); ++ } ++ rebuild_known_cipher_nids(e); ++ return 1; ++ ++#ifdef IMPLEMENT_DIGEST ++ case DEVCRYPTO_CMD_DIGESTS: ++ if (p == NULL) ++ return 1; ++ if (strcasecmp((const char *)p, "ALL") == 0) { ++ devcrypto_select_all_digests(selected_digests); ++ } else if (strcasecmp((const char*)p, "NONE") == 0) { ++ memset(selected_digests, 0, sizeof(selected_digests)); ++ } else { ++ new_list=OPENSSL_zalloc(sizeof(selected_digests)); ++ if (!CONF_parse_list(p, ',', 1, cryptodev_select_digest_cb, new_list)) { ++ OPENSSL_free(new_list); ++ return 0; ++ } ++ memcpy(selected_digests, new_list, sizeof(selected_digests)); ++ OPENSSL_free(new_list); ++ } ++ rebuild_known_digest_nids(e); ++ return 1; ++#endif /* IMPLEMENT_DIGEST */ ++ ++ case DEVCRYPTO_CMD_DUMP_INFO: ++ dump_cipher_info(); ++#ifdef IMPLEMENT_DIGEST ++ dump_digest_info(); ++#endif ++ return 1; ++ ++ default: ++ break; ++ } ++ return 0; ++} ++ ++/****************************************************************************** ++ * ++ * LOAD / UNLOAD ++ * ++ *****/ ++ ++/* ++ * Opens /dev/crypto ++ */ ++static int open_devcrypto(void) ++{ ++ if (cfd >= 0) ++ return 1; ++ ++ if ((cfd = open("/dev/crypto", O_RDWR, 0)) < 0) { ++#ifndef ENGINE_DEVCRYPTO_DEBUG ++ if (errno != ENOENT) ++#endif ++ fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno)); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++static int close_devcrypto(void) ++{ ++ int ret; ++ ++ if (cfd < 0) ++ return 1; ++ ret = close(cfd); ++ cfd = -1; ++ if (ret != 0) { ++ fprintf(stderr, "Error closing /dev/crypto: %s\n", strerror(errno)); ++ return 0; ++ } ++ return 1; ++} ++ ++static int devcrypto_unload(ENGINE *e) ++{ ++ destroy_all_cipher_methods(); ++#ifdef IMPLEMENT_DIGEST ++ destroy_all_digest_methods(); ++#endif ++ ++ close_devcrypto(); ++ ++ return 1; ++} ++ ++static int bind_devcrypto(ENGINE *e) { ++ ++ if (!ENGINE_set_id(e, engine_devcrypto_id) ++ || !ENGINE_set_name(e, "/dev/crypto engine") ++ || !ENGINE_set_destroy_function(e, devcrypto_unload) ++ || !ENGINE_set_cmd_defns(e, devcrypto_cmds) ++ || !ENGINE_set_ctrl_function(e, devcrypto_ctrl)) ++ return 0; ++ ++ prepare_cipher_methods(); ++#ifdef IMPLEMENT_DIGEST ++ prepare_digest_methods(); ++#endif ++ ++ return (ENGINE_set_ciphers(e, devcrypto_ciphers) ++#ifdef IMPLEMENT_DIGEST ++ && ENGINE_set_digests(e, devcrypto_digests) ++#endif ++/* ++ * Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD ++ * implementations, it seems to only exist in FreeBSD, and regarding the ++ * parameters in its crypt_kop, the manual crypto(4) has this to say: ++ * ++ * The semantics of these arguments are currently undocumented. ++ * ++ * Reading through the FreeBSD source code doesn't give much more than ++ * their CRK_MOD_EXP implementation for ubsec. ++ * ++ * It doesn't look much better with cryptodev-linux. They have the crypt_kop ++ * structure as well as the command (CRK_*) in cryptodev.h, but no support ++ * seems to be implemented at all for the moment. ++ * ++ * At the time of writing, it seems impossible to write proper support for ++ * FreeBSD's asym features without some very deep knowledge and access to ++ * specific kernel modules. ++ * ++ * /Richard Levitte, 2017-05-11 ++ */ ++#if 0 ++# ifndef OPENSSL_NO_RSA ++ && ENGINE_set_RSA(e, devcrypto_rsa) ++# endif ++# ifndef OPENSSL_NO_DSA ++ && ENGINE_set_DSA(e, devcrypto_dsa) ++# endif ++# ifndef OPENSSL_NO_DH ++ && ENGINE_set_DH(e, devcrypto_dh) ++# endif ++# ifndef OPENSSL_NO_EC ++ && ENGINE_set_EC(e, devcrypto_ec) ++# endif ++#endif ++ ); ++} ++ ++#ifdef OPENSSL_NO_DYNAMIC_ENGINE ++/* ++ * In case this engine is built into libcrypto, then it doesn't offer any ++ * ability to be dynamically loadable. ++ */ ++void engine_load_devcrypto_int(void) ++{ ++ ENGINE *e = NULL; ++ ++ if (!open_devcrypto()) ++ return; ++ ++ if ((e = ENGINE_new()) == NULL ++ || !bind_devcrypto(e)) { ++ close_devcrypto(); ++ ENGINE_free(e); ++ return; ++ } ++ ++ ENGINE_add(e); ++ ENGINE_free(e); /* Loose our local reference */ ++ ERR_clear_error(); ++} ++ ++#else ++ ++static int bind_helper(ENGINE *e, const char *id) ++{ ++ if ((id && (strcmp(id, engine_devcrypto_id) != 0)) ++ || !open_devcrypto()) ++ return 0; ++ if (!bind_devcrypto(e)) { ++ close_devcrypto(); ++ return 0; ++ } ++ return 1; ++} ++ ++IMPLEMENT_DYNAMIC_CHECK_FN() ++IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) ++ ++#endif |