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home:Alexander_Naumov:SLE12
openvpn
openvpn-fips140-2.3.2.patch
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File openvpn-fips140-2.3.2.patch of Package openvpn
diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto_backend.h openvpn-2.3.2/src/openvpn/crypto_backend.h --- openvpn-2.3.2.orig/src/openvpn/crypto_backend.h 2013-08-13 03:24:16.465313821 +0200 +++ openvpn-2.3.2/src/openvpn/crypto_backend.h 2013-08-13 05:55:40.914256287 +0200 @@ -452,10 +452,11 @@ void md_ctx_final (md_ctx_t *ctx, uint8_ * @param key The key to use for the HMAC * @param key_len The key length to use * @param kt Static message digest parameters + * @param prf_use Intended use for PRF in TLS protocol * */ void hmac_ctx_init (hmac_ctx_t *ctx, const uint8_t *key, int key_length, - const md_kt_t *kt); + const md_kt_t *kt, bool prf_use); /* * Free the given HMAC context. diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto.c openvpn-2.3.2/src/openvpn/crypto.c --- openvpn-2.3.2.orig/src/openvpn/crypto.c 2013-08-13 03:24:16.466313824 +0200 +++ openvpn-2.3.2/src/openvpn/crypto.c 2013-08-13 05:54:09.655008218 +0200 @@ -486,7 +486,7 @@ init_key_ctx (struct key_ctx *ctx, struc if (kt->digest && kt->hmac_length > 0) { ALLOC_OBJ(ctx->hmac, hmac_ctx_t); - hmac_ctx_init (ctx->hmac, key->hmac, kt->hmac_length, kt->digest); + hmac_ctx_init (ctx->hmac, key->hmac, kt->hmac_length, kt->digest, 0); msg (D_HANDSHAKE, "%s: Using %d bit message hash '%s' for HMAC authentication", @@ -1409,61 +1409,61 @@ free_ssl_lib (void) #endif /* ENABLE_SSL */ /* - * md5 functions + * sha1 functions */ const char * -md5sum (uint8_t *buf, int len, int n_print_chars, struct gc_arena *gc) +sha1sum (uint8_t *buf, int len, int n_print_chars, struct gc_arena *gc) { - uint8_t digest[MD5_DIGEST_LENGTH]; - const md_kt_t *md5_kt = md_kt_get("MD5"); + uint8_t digest[SHA_DIGEST_LENGTH]; + const md_kt_t *sha1_kt = md_kt_get("SHA1"); - md_full(md5_kt, buf, len, digest); + md_full(sha1_kt, buf, len, digest); - return format_hex (digest, MD5_DIGEST_LENGTH, n_print_chars, gc); + return format_hex (digest, SHA_DIGEST_LENGTH, n_print_chars, gc); } void -md5_state_init (struct md5_state *s) +sha1_state_init (struct sha1_state *s) { - const md_kt_t *md5_kt = md_kt_get("MD5"); + const md_kt_t *sha1_kt = md_kt_get("SHA1"); - md_ctx_init(&s->ctx, md5_kt); + md_ctx_init(&s->ctx, sha1_kt); } void -md5_state_update (struct md5_state *s, void *data, size_t len) +sha1_state_update (struct sha1_state *s, void *data, size_t len) { md_ctx_update(&s->ctx, data, len); } void -md5_state_final (struct md5_state *s, struct md5_digest *out) +sha1_state_final (struct sha1_state *s, struct sha1_digest *out) { md_ctx_final(&s->ctx, out->digest); md_ctx_cleanup(&s->ctx); } void -md5_digest_clear (struct md5_digest *digest) +sha1_digest_clear (struct sha1_digest *digest) { CLEAR (*digest); } bool -md5_digest_defined (const struct md5_digest *digest) +sha1_digest_defined (const struct sha1_digest *digest) { int i; - for (i = 0; i < MD5_DIGEST_LENGTH; ++i) + for (i = 0; i < SHA_DIGEST_LENGTH; ++i) if (digest->digest[i]) return true; return false; } bool -md5_digest_equal (const struct md5_digest *d1, const struct md5_digest *d2) +sha1_digest_equal (const struct sha1_digest *d1, const struct sha1_digest *d2) { - return memcmp(d1->digest, d2->digest, MD5_DIGEST_LENGTH) == 0; + return memcmp(d1->digest, d2->digest, SHA_DIGEST_LENGTH) == 0; } #endif /* ENABLE_CRYPTO */ diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto.h openvpn-2.3.2/src/openvpn/crypto.h --- openvpn-2.3.2.orig/src/openvpn/crypto.h 2013-08-13 03:24:16.459313788 +0200 +++ openvpn-2.3.2/src/openvpn/crypto.h 2013-08-13 05:54:09.656008193 +0200 @@ -364,24 +364,24 @@ void free_ssl_lib (void); #endif /* ENABLE_SSL */ /* - * md5 functions + * sha1 functions */ -struct md5_state { +struct sha1_state { md_ctx_t ctx; }; -struct md5_digest { +struct sha1_digest { uint8_t digest [MD5_DIGEST_LENGTH]; }; -const char *md5sum(uint8_t *buf, int len, int n_print_chars, struct gc_arena *gc); -void md5_state_init (struct md5_state *s); -void md5_state_update (struct md5_state *s, void *data, size_t len); -void md5_state_final (struct md5_state *s, struct md5_digest *out); -void md5_digest_clear (struct md5_digest *digest); -bool md5_digest_defined (const struct md5_digest *digest); -bool md5_digest_equal (const struct md5_digest *d1, const struct md5_digest *d2); +const char *sha1sum(uint8_t *buf, int len, int n_print_chars, struct gc_arena *gc); +void sha1_state_init (struct sha1_state *s); +void sha1_state_update (struct sha1_state *s, void *data, size_t len); +void sha1_state_final (struct sha1_state *s, struct sha1_digest *out); +void sha1_digest_clear (struct sha1_digest *digest); +bool sha1_digest_defined (const struct sha1_digest *digest); +bool sha1_digest_equal (const struct sha1_digest *d1, const struct sha1_digest *d2); /* * Inline functions diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto_openssl.c openvpn-2.3.2/src/openvpn/crypto_openssl.c --- openvpn-2.3.2.orig/src/openvpn/crypto_openssl.c 2013-08-13 03:24:16.462313808 +0200 +++ openvpn-2.3.2/src/openvpn/crypto_openssl.c 2013-08-13 05:56:06.930326789 +0200 @@ -719,13 +719,17 @@ md_ctx_final (EVP_MD_CTX *ctx, uint8_t * void hmac_ctx_init (HMAC_CTX *ctx, const uint8_t *key, int key_len, - const EVP_MD *kt) + const EVP_MD *kt, bool prf_use) { ASSERT(NULL != kt && NULL != ctx); CLEAR(*ctx); HMAC_CTX_init (ctx); + /* FIPS 140-2 explicitly allows MD5 for the use in PRF although it is not + * to be used anywhere else */ + if(kt == EVP_md5() && prf_use) + HMAC_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); HMAC_Init_ex (ctx, key, key_len, kt, NULL); /* make sure we used a big enough key */ diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto_openssl.h openvpn-2.3.2/src/openvpn/crypto_openssl.h --- openvpn-2.3.2.orig/src/openvpn/crypto_openssl.h 2013-08-13 03:24:16.465313821 +0200 +++ openvpn-2.3.2/src/openvpn/crypto_openssl.h 2013-08-13 05:54:09.656008193 +0200 @@ -33,6 +33,7 @@ #include <openssl/evp.h> #include <openssl/hmac.h> #include <openssl/md5.h> +#include <openssl/sha.h> /** Generic cipher key type %context. */ typedef EVP_CIPHER cipher_kt_t; diff -urNp openvpn-2.3.2.orig/src/openvpn/crypto_polarssl.c openvpn-2.3.2/src/openvpn/crypto_polarssl.c --- openvpn-2.3.2.orig/src/openvpn/crypto_polarssl.c 2013-08-13 03:24:16.460313793 +0200 +++ openvpn-2.3.2/src/openvpn/crypto_polarssl.c 2013-08-13 05:56:23.116370864 +0200 @@ -608,7 +608,7 @@ md_ctx_final (md_context_t *ctx, uint8_t * TODO: re-enable dmsg for crypto debug */ void -hmac_ctx_init (md_context_t *ctx, const uint8_t *key, int key_len, const md_info_t *kt) +hmac_ctx_init (md_context_t *ctx, const uint8_t *key, int key_len, const md_info_t *kt, bool prf_use) { ASSERT(NULL != kt && NULL != ctx); diff -urNp openvpn-2.3.2.orig/src/openvpn/init.c openvpn-2.3.2/src/openvpn/init.c --- openvpn-2.3.2.orig/src/openvpn/init.c 2013-08-13 03:24:16.465313821 +0200 +++ openvpn-2.3.2/src/openvpn/init.c 2013-08-13 05:54:09.658008149 +0200 @@ -1352,12 +1352,12 @@ do_route (const struct options *options, */ #if P2MP static void -save_pulled_options_digest (struct context *c, const struct md5_digest *newdigest) +save_pulled_options_digest (struct context *c, const struct sha1_digest *newdigest) { if (newdigest) c->c1.pulled_options_digest_save = *newdigest; else - md5_digest_clear (&c->c1.pulled_options_digest_save); + sha1_digest_clear (&c->c1.pulled_options_digest_save); } #endif @@ -1649,8 +1649,8 @@ do_up (struct context *c, bool pulled_op if (!c->c2.did_open_tun && PULL_DEFINED (&c->options) && c->c1.tuntap - && (!md5_digest_defined (&c->c1.pulled_options_digest_save) || !md5_digest_defined (&c->c2.pulled_options_digest) - || !md5_digest_equal (&c->c1.pulled_options_digest_save, &c->c2.pulled_options_digest))) + && (!sha1_digest_defined (&c->c1.pulled_options_digest_save) || !sha1_digest_defined (&c->c2.pulled_options_digest) + || !sha1_digest_equal (&c->c1.pulled_options_digest_save, &c->c2.pulled_options_digest))) { /* if so, close tun, delete routes, then reinitialize tun and add routes */ msg (M_INFO, "NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device."); @@ -2697,11 +2697,11 @@ do_compute_occ_strings (struct context * #ifdef ENABLE_CRYPTO msg (D_SHOW_OCC_HASH, "Local Options hash (VER=%s): '%s'", options_string_version (c->c2.options_string_local, &gc), - md5sum ((uint8_t*)c->c2.options_string_local, + sha1sum ((uint8_t*)c->c2.options_string_local, strlen (c->c2.options_string_local), 9, &gc)); msg (D_SHOW_OCC_HASH, "Expected Remote Options hash (VER=%s): '%s'", options_string_version (c->c2.options_string_remote, &gc), - md5sum ((uint8_t*)c->c2.options_string_remote, + sha1sum ((uint8_t*)c->c2.options_string_remote, strlen (c->c2.options_string_remote), 9, &gc)); #endif diff -urNp openvpn-2.3.2.orig/src/openvpn/ntlm.c openvpn-2.3.2/src/openvpn/ntlm.c --- openvpn-2.3.2.orig/src/openvpn/ntlm.c 2013-08-13 03:24:16.460313793 +0200 +++ openvpn-2.3.2/src/openvpn/ntlm.c 2013-08-13 05:54:09.658008149 +0200 @@ -90,7 +90,7 @@ gen_hmac_md5 (const char* data, int data hmac_ctx_t hmac_ctx; CLEAR(hmac_ctx); - hmac_ctx_init(&hmac_ctx, key, key_len, md5_kt); + hmac_ctx_init(&hmac_ctx, key, key_len, md5_kt, 0); hmac_ctx_update(&hmac_ctx, (const unsigned char *)data, data_len); hmac_ctx_final(&hmac_ctx, (unsigned char *)result); hmac_ctx_cleanup(&hmac_ctx); diff -urNp openvpn-2.3.2.orig/src/openvpn/openvpn.h openvpn-2.3.2/src/openvpn/openvpn.h --- openvpn-2.3.2.orig/src/openvpn/openvpn.h 2013-08-13 03:24:16.465313821 +0200 +++ openvpn-2.3.2/src/openvpn/openvpn.h 2013-08-13 05:54:09.658008149 +0200 @@ -206,7 +206,7 @@ struct context_1 #endif /* if client mode, hash of option strings we pulled from server */ - struct md5_digest pulled_options_digest_save; + struct sha1_digest pulled_options_digest_save; /**< Hash of option strings received from the * remote OpenVPN server. Only used in * client-mode. */ @@ -474,9 +474,9 @@ struct context_2 bool did_pre_pull_restore; /* hash of pulled options, so we can compare when options change */ - bool pulled_options_md5_init_done; - struct md5_state pulled_options_state; - struct md5_digest pulled_options_digest; + bool pulled_options_sha1_init_done; + struct sha1_state pulled_options_state; + struct sha1_digest pulled_options_digest; struct event_timeout server_poll_interval; diff -urNp openvpn-2.3.2.orig/src/openvpn/push.c openvpn-2.3.2/src/openvpn/push.c --- openvpn-2.3.2.orig/src/openvpn/push.c 2013-08-13 03:24:16.459313788 +0200 +++ openvpn-2.3.2/src/openvpn/push.c 2013-08-13 05:54:09.659008129 +0200 @@ -446,10 +446,10 @@ process_incoming_push_msg (struct contex if (ch == ',') { struct buffer buf_orig = buf; - if (!c->c2.pulled_options_md5_init_done) + if (!c->c2.pulled_options_sha1_init_done) { - md5_state_init (&c->c2.pulled_options_state); - c->c2.pulled_options_md5_init_done = true; + sha1_state_init (&c->c2.pulled_options_state); + c->c2.pulled_options_sha1_init_done = true; } if (!c->c2.did_pre_pull_restore) { @@ -465,13 +465,13 @@ process_incoming_push_msg (struct contex { case 0: case 1: - md5_state_update (&c->c2.pulled_options_state, BPTR(&buf_orig), BLEN(&buf_orig)); - md5_state_final (&c->c2.pulled_options_state, &c->c2.pulled_options_digest); - c->c2.pulled_options_md5_init_done = false; + sha1_state_update (&c->c2.pulled_options_state, BPTR(&buf_orig), BLEN(&buf_orig)); + sha1_state_final (&c->c2.pulled_options_state, &c->c2.pulled_options_digest); + c->c2.pulled_options_sha1_init_done = false; ret = PUSH_MSG_REPLY; break; case 2: - md5_state_update (&c->c2.pulled_options_state, BPTR(&buf_orig), BLEN(&buf_orig)); + sha1_state_update (&c->c2.pulled_options_state, BPTR(&buf_orig), BLEN(&buf_orig)); ret = PUSH_MSG_CONTINUATION; break; } diff -urNp openvpn-2.3.2.orig/src/openvpn/ssl.c openvpn-2.3.2/src/openvpn/ssl.c --- openvpn-2.3.2.orig/src/openvpn/ssl.c 2013-08-13 03:24:16.459313788 +0200 +++ openvpn-2.3.2/src/openvpn/ssl.c 2013-08-13 05:54:09.660008110 +0200 @@ -1342,8 +1342,8 @@ tls1_P_hash(const md_kt_t *md_kt, chunk = md_kt_size(md_kt); A1_len = md_kt_size(md_kt); - hmac_ctx_init(&ctx, sec, sec_len, md_kt); - hmac_ctx_init(&ctx_tmp, sec, sec_len, md_kt); + hmac_ctx_init(&ctx, sec, sec_len, md_kt, 1); + hmac_ctx_init(&ctx_tmp, sec, sec_len, md_kt, 1); hmac_ctx_update(&ctx,seed,seed_len); hmac_ctx_final(&ctx, A1);
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