Accepting request 1043949 from home:ohollmann:branches:network
- Adapt OpenSSH to build with OpenSSL 3, use new KDF API (bsc#1205042) Add openssh-openssl-3.patch OBS-URL: https://build.opensuse.org/request/show/1043949 OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=244
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125
openssh-openssl-3.patch
Normal file
125
openssh-openssl-3.patch
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@ -0,0 +1,125 @@
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---
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fips.c | 5 +++++
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kex.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
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2 files changed, 65 insertions(+), 1 deletion(-)
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--- a/fips.c
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+++ b/fips.c
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@@ -48,6 +48,11 @@
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static int fips_state = -1;
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+#if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+# define FIPS_mode() EVP_default_properties_is_fips_enabled(NULL)
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+# define FIPS_mode_set(x) EVP_default_properties_enable_fips(NULL,x)
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+#endif
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+
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/* calculates HMAC of contents of a file given by filename using the hash
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* algorithm specified by FIPS_HMAC_EVP in fips.h and placing the result into
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* newly allacated memory - remember to free it when not needed anymore */
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--- a/kex.c
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+++ b/kex.c
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@@ -41,6 +41,9 @@
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#include <openssl/crypto.h>
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#include <openssl/dh.h>
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#include <openssl/kdf.h>
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+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+# include <openssl/core_names.h>
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+# endif
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#endif
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#include "ssh.h"
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@@ -1191,14 +1194,61 @@ derive_key_via_openssl(struct ssh *ssh,
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{
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struct kex *kex = ssh->kex;
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EVP_KDF_CTX *hashctx = NULL;
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- const EVP_MD *md = NULL;
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u_char *digest = NULL;
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int r = SSH_ERR_LIBCRYPTO_ERROR;
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+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+ OSSL_PARAM params[6], *p = params;
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+ char type = (char) id;
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+ EVP_KDF *kdf = EVP_KDF_fetch (NULL, "SSHKDF", NULL);
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+ if (!kdf)
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+ goto out;
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+ hashctx = EVP_KDF_CTX_new (kdf);
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+# else
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+ const EVP_MD *md = NULL;
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hashctx = EVP_KDF_CTX_new_id (EVP_KDF_SSHKDF);
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+# endif
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if (!hashctx)
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goto out;
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+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+ switch (kex->hash_alg)
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+ {
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+ case SSH_DIGEST_MD5:
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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+ SN_md5, strlen(SN_md5));
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+ break;
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+ case SSH_DIGEST_SHA1:
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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+ SN_sha1, strlen(SN_sha1));
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+ break;
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+ case SSH_DIGEST_SHA256:
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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+ SN_sha256, strlen(SN_sha256));
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+ break;
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+ case SSH_DIGEST_SHA384:
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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+ SN_sha384, strlen(SN_sha384));
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+ break;
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+ case SSH_DIGEST_SHA512:
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
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+ SN_sha512, strlen(SN_sha512));
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+ break;
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+ default:
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+ goto out;
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+ }
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+
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+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY,
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+ sshbuf_ptr(shared_secret), sshbuf_len(shared_secret));
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+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SSHKDF_XCGHASH,
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+ hash, (size_t) hashlen);
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+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SSHKDF_SESSION_ID,
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+ sshbuf_ptr(kex->session_id), (size_t) sshbuf_len(kex->session_id));
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+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_SSHKDF_TYPE,
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+ &type, sizeof(type));
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+ *p = OSSL_PARAM_construct_end();
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+
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+# else
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md = get_openssl_md_for_hash_alg (kex->hash_alg);
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if (!md)
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goto out;
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@@ -1215,6 +1265,7 @@ derive_key_via_openssl(struct ssh *ssh,
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sshbuf_ptr(kex->session_id),
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(size_t) sshbuf_len(kex->session_id)) != 1)
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goto out;
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+# endif
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digest = calloc (1, need);
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if (!digest) {
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@@ -1222,7 +1273,11 @@ derive_key_via_openssl(struct ssh *ssh,
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goto out;
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}
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+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+ if (EVP_KDF_derive (hashctx, digest, need, params) != 1)
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+# else
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if (EVP_KDF_derive (hashctx, digest, need) != 1)
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+# endif
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goto out;
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*keyp = digest;
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@@ -1233,6 +1288,10 @@ derive_key_via_openssl(struct ssh *ssh,
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if (hashctx)
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EVP_KDF_CTX_free(hashctx);
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+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
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+ EVP_KDF_free(kdf);
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+# endif
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+
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if (digest)
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free(digest);
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@ -1,3 +1,9 @@
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-------------------------------------------------------------------
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Mon Dec 19 15:41:26 UTC 2022 - Otto Hollmann <otto.hollmann@suse.com>
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- Adapt OpenSSH to build with OpenSSL 3, use new KDF API (bsc#1205042)
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Add openssh-openssl-3.patch
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-------------------------------------------------------------------
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Thu Dec 15 16:35:33 UTC 2022 - Dirk Müller <dmueller@suse.com>
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@ -110,13 +110,14 @@ Patch46: openssh-whitelist-syscalls.patch
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Patch47: openssh-8.4p1-vendordir.patch
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Patch48: openssh-8.4p1-pam_motd.patch
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Patch49: openssh-do-not-send-empty-message.patch
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Patch50: openssh-openssl-3.patch
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BuildRequires: audit-devel
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BuildRequires: automake
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BuildRequires: groff
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BuildRequires: libedit-devel
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BuildRequires: libselinux-devel
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BuildRequires: openldap2-devel
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BuildRequires: pkgconfig(openssl) < 3
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BuildRequires: openssl-devel
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BuildRequires: pam-devel
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BuildRequires: pkgconfig
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BuildRequires: zlib-devel
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