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* Fix .Xr order. From mandoc -Tlint.tb2021-06-262-7/+7
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* Garbage collect prototoype for ssl_parse_serverhello_tlsext() whichtb2021-06-231-3/+1
| | | | was removed in t1_lib.c r1.141.
* Correctly handle epoch wrapping in dtls1_get_bitmap().jsing2021-06-192-4/+5
| | | | | | | | | | | | | | | | | | | | | | Due to a type bug that has been present in DTLS since the code was first committed in 2005, dtls1_get_bitmap() fails to handle next epoch correctly when the epoch is currently 0xffff (and wraps to zero). For various reasons unknown, the epoch field in the SSL3_RECORD_INTERNAL (formerly SSL3_RECORD) was added as unsigned long (even though the value is an unsigned 16 bit value on the wire, hence cannot exceed 0xffff), however was added to other code as unsigned short. Due to integer promotion, the r_epoch value is incremented by one to become 0x10000, before being cast to an unsigned long and compared to the value pulled from the DTLS record header (which is zero). Strangely 0x10000 != 0, meaning that we drop the DTLS record, instead of queueing it for the next epoch. Fix this issue by using more appropriate types and pulling up the calculation of the next epoch value for improved readability. ok inoguchi@ tb@
* Provide the ability to set the initial DTLS epoch value.jsing2021-06-194-7/+29
| | | | | | This allows for regress to test edge cases for epoch handling. ok tb@
* Initialise the epoch for the DTLS processed and unprocessed queues.jsing2021-06-191-1/+4
| | | | | | | | Currently these only get correctly initialised when dtls1_process_buffered_records() is called - while this works it is more accidental than intentional. ok tb@
* Mop up part of dtls1_dispatch_alert().jsing2021-06-151-9/+2
| | | | | | | | | | | | The original DTLS code had some strange alert handling code (basically one type of alert included extra data) - a few years later this was "fixed", however the rest of the code was left as is. This means that rather than sending the alert data from send_alert (like ssl3_dispatch_alert() does), we have a local buffer on the stack, which we memset, copy the send_alert bytes into, then send from. ok inoguchi@ tb@
* Simplify nonce handling in the TLSv1.2 record layer.jsing2021-06-141-13/+16
| | | | | | | Pass the CBS for the sequence number through, which also allows us to do more sensible length checks. Also, add a missing length check while here. ok inoguchi@ tb@
* Remove TLS1_AD_INTERNAL_ERROR from internal visibility againtb2021-06-141-3/+1
| | | | With tls_server.c r1.47 this is no longer needed.
* ugly hack around broken build until people wake up.deraadt2021-06-141-1/+3
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* Add SSL_AD_MISSING_EXTENSION.jsing2021-06-132-2/+9
| | | | | | | This is an alert that was added in TLSv1.3 - we already use it internally, but did not provide the SSL_AD_* define previously. ok tb@
* Define SSL_AD_* as actual values.jsing2021-06-133-42/+49
| | | | | | | | | Rather than having SSL_AD_* as defines that refer to SSL3_AD_* or TLS1_AD_*, just give them actual values directly since it is more readable and the indirection provides no value. Place SSL3_AD_* and TLS1_AD_* under #ifndef LIBRESSL_INTERNAL to prevent further usage. ok tb@
* Remove tls1_alert_code().jsing2021-06-133-73/+3
| | | | | | | | | | | | | | | | | | | | After running the preprocessor, this function becomes: switch (code) { case 0: return (0); case 10: return (10); case 20: return (20); ... } Its intended purpose was to prevent SSLv3 alerts being sent from TLS code, however now that we've removed "no_certificate" from LibreSSL's reach, it no longer does anything useful. ok tb@
* Place obsolete alerts under #ifndef LIBRESSL_INTERNAL.jsing2021-06-131-4/+7
| | | | ok tb@
* Remove references to obsolete alerts.jsing2021-06-132-26/+2
| | | | | | | | The "no_certificate" alert only existed in SSLv3, while the "decryption_failed" and "export_restriction" alerts were removed in TLSv1.1. ok tb@
* space between macro args and punctuation;jmc2021-06-121-10/+10
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* RFC 4507bis can refer to various RFCs but this instance is abouttb2021-06-121-4/+5
| | | | | | | RFC 5077. Note that session resumption via session tickets is only for TLSv1.2 and earlier. prompted by a question by/ok jmc
* space between RFC and number;jmc2021-06-116-26/+26
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* Only use SSL_AD_* internally.jsing2021-06-113-88/+88
| | | | | | | | | | | Due to hysterical raisins there are three different types of defines for alerts. SSL3_AD_* are from SSLv3, TLS1_AD_* are from TLSv1.0 onwards and SSL_AD_* currently map to either an SSL3_AD_* or TLS1_AD_* define. Currently, all three of these are used in various places - switch to using just SSL_AD_* values internally, as a first step in cleaning this up. ok tb@
* add AES-GCM constants from RFC 7714 for SRTPlandry2021-06-113-4/+20
| | | | | | | | | | SRTP_AEAD_AES_128_GCM/SRTP_AEAD_AES_256_GCM can be used as DTLS-SRTP protection profiles - seen with an update of telephony/baresip i'm working on. adapted from openssl commit 43e5faa2539ae8aae6ef55be2239b9b1a77fea45 ok tb@ jsing@
* SSL3_AD_ILLEGAL_PARAMETER is not a valid SSLerror() reason code.jsing2021-06-111-2/+2
| | | | | | Use SSL_R_SSLV3_ALERT_ILLEGAL_PARAMETER instead. ok tb@
* Indent all labels with a single space.jsing2021-06-1111-44/+44
| | | | | | This ensures that diff reports the correct function prototype. Prompted by tb@
* Simplify tlsext_ecpf_parse()tb2021-06-081-8/+4
| | | | | | | The default alert in the tlsext parsing code is a decode_error, so there's no need for an error path that only sets that alert. suggested by/ok jsing
* Rewrap a comment to avoid an overlong linetb2021-06-081-3/+3
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* Ignore the record version for early alertstb2021-06-081-4/+10
| | | | | | | | | | | | | On receiving the first flight from the peer, we do not yet know if we are using TLSv1.3. In particular, we might get an alert record with record version 0x0300 from a pre-TLSv1.2 peer in response to our client hello. Ignore the record version instead of sending a protocol version alert in that situtation. This may also be hit when talking to a LibreSSL 3.3 server with an illegal SNI. Part of an issue reported by danj. ok jsing
* TLSv1.3 server: avoid sending alerts in legacy recordstb2021-06-081-3/+4
| | | | | | | | | As soon as we know that we're dealing with a TLSv1.3 client, set the legacy version in the record layer to 0x0303 so that we send alerts with the correct record version. Previously we would send early alerts with a record version of 0x0300. ok jsing
* Adjust alert for ECPF without uncompressed point formattb2021-06-081-3/+4
| | | | | | | | | | According to RFC 8422, we must send an illegal_parameter alert on receiving an ECPF extension that doesn't include the uncompressed format, not a decode_error. Reported via GitHub issue #675. ok jsing
* Fix pkg-config .pc files with LibreSSLinoguchi2021-06-081-7/+5
| | | | | | | | In libssl.pc, Libs: should not have '-lcrypto', and Requires.private: should have it as 'libcrypto'. openssl.pc does not need Libs: and Cflags:, but should have Requires:. OK millert@
* Absorb SSL_AEAD_CTX into struct tls12_record_protection.jsing2021-05-163-73/+63
| | | | | | | | The information contained in SSL_AEAD_CTX really belongs in the tls12_record_protection struct. Absorb SSL_AEAD_CTX, using more appropriate types in the process. ok tb@
* Zero the tls12_record_protection struct instead of individual fields.jsing2021-05-161-9/+3
| | | | | | | | In tls12_record_protection_clear(), rather than zeroing or NULLing individual fields once a pointer has been freed, zero the entire struct once the pointers have been dealt with. ok tb@
* Avoid including tls13_internal.h in tls13_record.h.jsing2021-05-161-2/+1
| | | | | While the implementation needs tls13_internal.h, consumers of tls13_record.h should not.
* Avoid pulling ssl_locl.h into self-contained code.jsing2021-05-164-8/+4
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* Make local header inclusion consistent.jsing2021-05-1618-51/+36
| | | | | Consistently include local headers in the same location, using the same grouping/sorting across all files.
* Move DTLS structs/definitions/prototypes to dtls_locl.h.jsing2021-05-1614-214/+282
| | | | | | | | Now that the DTLS structs are opaque, add a dtls_locl.h header and move internal-only structs from dtls1.h, along with prototypes from ssl_locl.h. Only pull this header in where DTLS code actually exists. ok inoguchi@ tb@
* Add a missing space.jsing2021-05-161-2/+2
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* Fix formatting of multi-line license comment per style(9).jsing2021-05-164-8/+12
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* Avoid pulling ssl_sigalgs.h in via ssl_locl.h.jsing2021-05-163-4/+7
| | | | | Forward declare struct sigalg in ssl_locl.h and avoid including ssl_sigalgs.h. Explicitly include ssl_sigalgs.h where it is needed.
* Remove unnecessary includes from the bytestring APIs.jsing2021-05-164-14/+4
| | | | | The bytestring APIs are self contained, hence including openssl headers here is unnecessary.
* Explicitly include <openssl/opensslconf.h> in files using OPENSSL_NO_*jsing2021-05-1613-16/+30
| | | | | | Where a file references to OPENSSL_NO_* conditions, ensure that we explicitly include <openssl/opensslconf.h> before any references, rather than relying on another header to pull this in.
* Merge documentation for SSL_CIPHER_find(3) from OpenSSL 1.1.1.tb2021-05-121-2/+29
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* Install SSL_SESSION_get0_cipher.3tb2021-05-121-1/+2
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* Document SSL_SESSION_get0_cipher(3)tb2021-05-121-0/+94
| | | | | | | Based on the OpenSSL 1.1.1 manual written by Rich Salz with a healthy dose of improvements by schwarze. ok schwarze
* Document SSL_CTX_get_ssl_method(3)tb2021-05-111-4/+15
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* bump libssl major after struct visibility changes and symbol additiontb2021-05-101-2/+2
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* Make SSL_CIPHER, SSL_CTX, SSL_SESSION, {DTLS1,SSL3}_STATEtb2021-05-103-8/+7
| | | | | | and a few other structs in libssl opaque. from/ok jsing
* Provide SSL_SESSION_get0_cipher(3)tb2021-05-103-2/+10
| | | | ok jsing
* Provide SSL_CTX_get_ssl_method(3)tb2021-05-103-2/+11
| | | | ok jsing
* Provide SSL_CIPHER_find(3)tb2021-05-103-2/+10
| | | | ok jsing
* Replace DTLS w_epoch with epoch from TLSv1.2 record layer.jsing2021-05-055-29/+20
| | | | ok inoguchi@ tb@
* Rewrite TLSv1.2 key block handling.jsing2021-05-055-134/+247
| | | | | | | | | | | | | For TLSv1.2 a single key block is generated, then partitioned into individual secrets for use as IVs and keys. The previous implementation splits this across two functions tls1_setup_key_block() and tls1_change_cipher_state(), which means that the IV and key sizes have to be known in multiple places. This implementation generates and partitions the key block in a single step, meaning that the secrets are then simply handed out when requested. ok inoguchi@ tb@
* Prevent future internal use of some #definestb2021-05-021-1/+3
| | | | | | | | After jsing's recent commits, SSL3_CC_{READ,WRITE,CLIENT,SERVER} and the derived SSL3_CHANGE_CIPHER_{CLIENT,SERVER}_{READ,WRITE} are no longer used by LibreSSL and should never be used again. discussed with jsing