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2021-06-01Rename all getters to use get/get0 in nameTomas Mraz
For functions that exist in 1.1.1 provide a simple aliases via #define. Fixes #15236 Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_, EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_, EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_, EVP_MD_, and EVP_CIPHER_ prefixes are renamed. Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15405)
2021-06-01ssl: ass size_t to RAND_bytes_ex()Pauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/15540)
2021-05-29ssl: add zero strenght arguments to BN and RAND RNG callsPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15513)
2021-05-27Call SSLfatal when the generate_ticket_cb returns 0Todd Short
Otherwise, the state machine ends up being in a bad state: ``` SSL routines:write_state_machine:missing fatal:ssl/statem/statem.c:XXX: ``` Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Ben Kaduk <kaduk@mit.edu> (Merged from https://github.com/openssl/openssl/pull/15487)
2021-05-27Use "" for include internal/xxxRich Salz
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15468)
2021-05-21Cleanup the peer point formats on regotiationDmitry Belyavskiy
Fixes #14875 Reviewed-by: Ben Kaduk <kaduk@mit.edu> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15383)
2021-05-17Add SSL_OP_ALLOW_CLIENT_RENEGOTIATIONRich Salz
Add -client_renegotiation flag support. The -client_renegotiation flag is equivalent to SSL_OP_ALLOW_CLIENT_RENEGOTIATION. Add support to the app, the config code, and the documentation. Add SSL_OP_ALLOW_CLIENT_RENEGOTIATION to the SSL tests. We don't need to always enable it, but there are so many tests so this is the easiest thing to do. Add a test where client tries to renegotiate and it fails as expected. Add a test where server tries to renegotiate and it succeeds. The second test is supported by a new flag, -immediate_renegotiation, which is ignored on the client. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15184)
2021-05-15Promote SSL_get_negotiated_group() for non-TLSv1.3Benjamin Kaduk
It can be useful to know what group was used for the handshake's key exchange process even on non-TLS 1.3 connections. Allow this API, new in OpenSSL 3.0.0, to be used on other TLS versions as well. Since pre-TLS-1.3 key exchange occurs only on full handshakes, this necessitates adding a field to the SSL_SESSION object to carry the group information across resumptions. The key exchange group in the SSL_SESSION can also be relevant in TLS 1.3 when the resumption handshake uses the "psk_ke" key-exchange mode, so also track whether a fresh key exchange was done for TLS 1.3. Since the new field is optional in the ASN.1 sense, there is no need to increment SSL_SESSION_ASN1_VERSION (which incurs strong incompatibility churn). Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14750)
2021-05-12Don't send key_share for PSK-only key exchangeBenjamin Kaduk
TLS 1.3 allows for the "psk_ke" and "psk_dhe_ke" key-exchange modes. Only the latter mode introduces a new ephemeral (Diffie-Hellman) key exchange, with the PSK being the only key material used in the former case. It's a compliance requirement of RFC 8446 that the server MUST NOT send a KeyShareEntry when using the "psk_ke" mode, but prior to this commit we would send a key-share based solely on whether the client sent one. This bug goes unnoticed in our internal test suite since openssl communicating with openssl can never negotiate the PSK-only key-exchange mode. However, we should still be compliant with the spec, so check whether the DHE mode was offered and don't send a key-share if it wasn't. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14749)
2021-05-12Improve RFC 8446 PSK key exchange mode complianceBenjamin Kaduk
It's a MUST-level requirement that if the client sends a pre_shared_key extension not accompanied by a psk_key_exchange_modes extension, the server must abort the handshake. Prior to this commit the server would continue on. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14749)
2021-05-01Use OCSP-specific error code for clarityDmitry Belyavskiy
Fixes #12735 Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/xxxxx)
2021-04-28Defer Finished MAC handling until after state transitionMatt Caswell
In TLS we process received messages like this: 1) Read Message Header 2) Validate and transition state based on received message type 3) Read Message Body 4) Process Message In DTLS we read messages like this: 1) Read Message Header and Body 2) Validate and transition state based on received message type 3) Process Message The difference is because of the stream vs datagram semantics of the underlying transport. In both TLS and DTLS we were doing finished MAC processing as part of reading the message body. This means that in DTLS this was occurring *before* the state transition has been validated. A crash was occurring in DTLS if a Finished message was sent in an invalid state due to assumptions in the code that certain variables would have been setup by the time a Finished message arrives. To avoid this problem we shift the finished MAC processing to be after the state transition in DTLS. Thanks to github user @bathooman for reporting this issue. Fixes #14906 Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14930)
2021-04-22Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14986)
2021-04-18Add "origin" field to EVP_CIPHER, EVP_MDRich Salz
Add a "where did this EVP_{CIPHER,MD} come from" flag: global, via fetch, or via EVP_{CIPHER,MD}_meth_new. Update EVP_{CIPHER,MD}_free to handle all three origins. The flag is deliberately right before some function pointers, so that compile-time failures (int/pointer) will occur, as opposed to taking a bit in the existing "flags" field. The "global variable" flag is non-zero, so the default case of using OPENSSL_zalloc (for provider ciphers), will do the right thing. Ref-counting is a no-op for Make up_ref no-op for global MD and CIPHER objects Deprecate EVP_MD_CTX_md(). Added EVP_MD_CTX_get0_md() (same semantics as the deprecated function) and EVP_MD_CTX_get1_md(). Likewise, deprecate EVP_CIPHER_CTX_cipher() in favor of EVP_CIPHER_CTX_get0_cipher(), and add EVP_CIPHER_CTX_get1_CIPHER(). Refactor EVP_MD_free() and EVP_MD_meth_free() to call new common evp_md_free_int() function. Refactor EVP_CIPHER_free() and EVP_CIPHER_meth_free() to call new common evp_cipher_free_int() function. Also change some flags tests to explicit test == or != zero. E.g., if (flags & x) --> if ((flags & x) != 0) if (!(flags & x)) --> if ((flags & x) == 0) Only done for those lines where "get0_cipher" calls were made. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14193)
2021-04-12Replace OSSL_PARAM_BLD_free_params() with OSSL_PARAM_free().Shane Lontis
Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14785)
2021-04-09Fix typo in statem_clnt.cNan Xiao
CLA: trivial Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14791)
2021-04-01Corrected missing definitions from NonStop SPT build.Randall S. Becker
This change includes swapping the PUT and SPT configuration, includes of sys/stat.h and sys/types.h in the correct scope to be picked up by SPT definitions. Fixes: #14698 Fixes: #14734 CLA: The author has the permission to grant the OpenSSL Team the right to use this change. Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com> Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14736)
2021-03-25Ensure buffer/length pairs are always in syncMatt Caswell
Following on from CVE-2021-3449 which was caused by a non-zero length associated with a NULL buffer, other buffer/length pairs are updated to ensure that they too are always in sync. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org>
2021-03-25ssl sigalg extension: fix NULL pointer dereferencePeter Kaestle
As the variable peer_sigalgslen is not cleared on ssl rehandshake, it's possible to crash an openssl tls secured server remotely by sending a manipulated hello message in a rehandshake. On such a manipulated rehandshake, tls1_set_shared_sigalgs() calls tls12_shared_sigalgs() with the peer_sigalgslen of the previous handshake, while the peer_sigalgs has been freed. As a result tls12_shared_sigalgs() walks over the available peer_sigalgs and tries to access data of a NULL pointer. This issue was introduced by c589c34e61 (Add support for the TLS 1.3 signature_algorithms_cert extension, 2018-01-11). Signed-off-by: Peter Kästle <peter.kaestle@nokia.com> Signed-off-by: Samuel Sapalski <samuel.sapalski@nokia.com> CVE-2021-3449 CLA: trivial Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org>
2021-03-18ssl: fix coverity 1451515: out of bounds memory accessPauli
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14585)
2021-03-18Add ossl_gost symbolsShane Lontis
Partial fix for #12964 Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-12ssl: support params arguments to init functionsPauli
Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14383)
2021-03-08Fix the check for suitable groups and TLSv1.3Matt Caswell
If we have TLSv1.3 enabled then we must have at least one TLSv1.3 capable group available. This check was not always working Reviewed-by: Ben Kaduk <kaduk@mit.edu> (Merged from https://github.com/openssl/openssl/pull/14430)
2021-03-03statem_lib.c: Remove TODOs that are unnecessaryTomas Mraz
If the EVP_MD_CTX_ctrl is deprecated the code will generate deprecation warnings. So there is no point in marking all EVP_MD_CTX_ctrl() calls with TODOs. Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14367)
2021-02-18Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14235)
2021-02-15Implement EVP_PKEY_param_check_quick() and use it in libsslMatt Caswell
The low level DH API has two functions for checking parameters: DH_check_ex() and DH_check_params_ex(). The former does a "full" check, while the latter does a "quick" check. Most importantly it skips the check for a safe prime. We're ok without using safe primes here because we're doing ephemeral DH. Now that libssl is fully using the EVP API, we need a way to specify that we want a quick check instead of a full check. Therefore we introduce EVP_PKEY_param_check_quick() and use it. Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Shane Lontis <shane.lontis@oracle.com> (Merged from https://github.com/openssl/openssl/pull/14146)
2021-02-12Deprecate the libssl level SRP APIsMatt Caswell
The low level SRP implementation has been deprecated with no replacement. Therefore the libssl level APIs need to be similarly deprecated. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14132)
2021-02-09Remove unused 'peer_type' from SSL_SESSIONBenjamin Kaduk
This field has not been used since #3858 was merged in 2017 when we moved to a table-based lookup for certificate type properties instead of an index-based one. Reviewed-by: Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/13991)
2021-02-08Simplify the EVP_PKEY_XXX_fromdata_XX methods.Shane Lontis
The existing names such as EVP_PKEY_param_fromdata_settable were a bit confusing since the 'param' referred to key params not OSSL_PARAM. To simplify the interface a 'selection' parameter will be passed instead. The changes are: (1) EVP_PKEY_fromdata_init() replaces both EVP_PKEY_key_fromdata_init() and EVP_PKEY_param_fromdata_init(). (2) EVP_PKEY_fromdata() has an additional selection parameter. (3) EVP_PKEY_fromdata_settable() replaces EVP_PKEY_key_fromdata_settable() and EVP_PKEY_param_fromdata_settable(). EVP_PKEY_fromdata_settable() also uses a selection parameter. Fixes #12989 Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14076)
2021-02-05Remove OPENSSL_NO_EC guards from libsslMatt Caswell
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05Make supported_groups code independent of EC and DHMatt Caswell
The supported groups code was checking the OPENSSL_NO_EC and OPENSSL_NO_DH guards in order to work, and the list of default groups was based on those guards. However we now need it to work even in a no-ec and no-dh build, because new groups might be added from providers. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05Ensure default supported groups works even with no-ec and no-dhMatt Caswell
The default supported groups code was disabled in the event of a build with no-ec and no-dh. However now that providers can add there own groups (which might not fit into either of these categories), this is no longer appropriate. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05Remove OPENSSL_NO_DH guards from libsslMatt Caswell
This removes man unnecessary OPENSSL_NO_DH guards from libssl. Now that libssl is entirely using the EVP APIs and implementations can be plugged in via providers it is no longer needed to disable DH at compile time in libssl. Instead it should detect at runtime whether DH is available from the loaded providers. Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13916)
2021-01-28Update copyright yearRichard Levitte
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13999)
2021-01-26TLS client: allow cert verify callback return -1 for SSL_ERROR_WANT_RETRY_VERIFYDr. David von Oheimb
The client-side cert verification callback function may not only return as usual for success or 0 for failure, but also -1, typically on failure verifying the server certificate. This makes the handshake suspend and return control to the calling application with SSL_ERROR_WANT_RETRY_VERIFY. The app can for instance fetch further certificates or cert status information needed for the verification. Calling SSL_connect() again resumes the connection attempt by retrying the server certificate verification step. This process may even be repeated if need be. The core implementation of the feature is in ssl/statem/statem_clnt.c, splitting tls_process_server_certificate() into a preparation step that just copies the certificates received from the server to s->session->peer_chain (rather than having them in a local variable at first) and returns to the state machine, and a post-processing step in tls_post_process_server_certificate() that can be repeated: Try verifying the current contents of s->session->peer_chain basically as before, but give the verification callback function the chance to pause connecting and make the TLS state machine later call tls_post_process_server_certificate() again. Otherwise processing continues as usual. The documentation of the new feature is added to SSL_CTX_set_cert_verify_callback.pod and SSL_want.pod. This adds two tests: * A generic test in test/helpers/handshake.c on the usability of the new server cert verification retry feature. It is triggered via test/ssl-tests/03-custom_verify.cnf.in (while the bulky auto- generated changes to test/ssl-tests/03-custom_verify.cnf can be basically ignored). * A test in test/sslapitest.c that demonstrates the effectiveness of the approach for augmenting the cert chain provided by the server in between SSL_connect() calls. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13906)
2021-01-18Update SERVER_HELLO_MAX_LENGTHMichael Baentsch
Update constant to maximum permitted by RFC 8446 Fixes #13868 Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13874)
2021-01-12Clean away extraneous library specific FETCH_FAILED reason codesRichard Levitte
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13467)
2021-01-09Fix for negative return value from `SSL_CTX_sess_accept()`anupamam13
Fixes #13183 From the original issue report, before this commit, on master and on 1.1.1, the issue can be detected with the following steps: - Start with a default SSL_CTX, initiate a TLS 1.3 connection with SNI, "Accept" count of default context gets incremented - After servername lookup, "Accept" count of default context gets decremented and that of SNI context is incremented - Server sends a "Hello Retry Request" - Client sends the second "Client Hello", now again "Accept" count of default context is decremented. Hence giving a negative value. This commit fixes it by adding a check on `s->hello_retry_request` in addition to `SSL_IS_FIRST_HANDSHAKE(s)`, to ensure the counter is moved only on the first ClientHello. CLA: trivial Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/13297)
2020-12-20Drop OPENSSL_NO_RSA everywhereRichard Levitte
The configuration option 'no-rsa' was dropped with OpenSSL 1.1.0, so this is simply a cleanup of the remains. Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13700)
2020-12-09Modify is_tls13_capable() to take account of the servername cbMatt Caswell
A servername cb may change the available certificates, so if we have one set then we cannot rely on the configured certificates to determine if we are capable of negotiating TLSv1.3 or not. Fixes #13291 Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13304)
2020-12-08TLS: Use EVP_PKEY_get_group_name() to get the group nameRichard Levitte
For the moment, we translate the result to a NID, because that's still used in several locations in libssl. Future development should change all the internals to be name based instead. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13436)
2020-12-03tag unused function arguments as ossl_unusedPauli
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13577)
2020-11-26Update copyright yearMatt Caswell
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13533)
2020-11-18Deprecate RSA harderRichard Levitte
This deprecates all functions that deal with the types RSA and RSA_METHOD Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/13096)
2020-11-18Only disabled what we need to in a no-dh buildMatt Caswell
no-dh disables the low level API for DH. However, since we're now using the high level EVP API in most places we don't need to disable quite so much. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18Remove DH usage from tls_process_cke_dheMatt Caswell
We instead set the encoded public key directly in the EVP_PKEY object. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18Remove DH usage in tls_construct_server_key_exchange()Matt Caswell
We get DH related parameters directly from the EVP_PKEY instead of downgrading to a DH object first. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18Avoid the use of a DH object in tls_construct_cke_dhe()Matt Caswell
There is no need for us to downgrade the EVP_PKEY into a DH object for this function so we rewrite things to avoid it. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18Deprecate SSL_CTRL_SET_TMP_DH and other related ctrlsMatt Caswell
These ctrls pass around a DH object which is now deprecated, so we deprecate the ctrls themselves. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18Convert TLS ServerKeyExchange processing to use an EVP_PKEYMatt Caswell
Previously we were constructing a DH object and then assigning it to an EVP_PKEY. Instead we construct an EVP_PKEY directly. Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13368)