Commit Graph

132 Commits

Author SHA1 Message Date
Philippe Antoine
1dbfd7fe24 fuzz: fix coverity warnings
introduced by 2b9e2afc38

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
(Merged from https://github.com/openssl/openssl/pull/20253)
2023-02-20 10:04:30 -05:00
Tomas Mraz
25624c9087 Rationalize FIPS sources
Avoid including QUIC related stuff in the FIPS sources.
Also avoid including libssl headers in ssl3_cbc.c.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19658)
2023-02-08 16:20:55 +01:00
Philippe Antoine
2b9e2afc38 fuzz: make post handshake reachable
So that CVE-2021-3449 can be found through fuzzing

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/20128)
2023-02-08 16:13:17 +01:00
Matt Caswell
3f9175c7a4 Extend the new_record_layer function
Add the ability to pass the main secret and length, as well as the
digest used for the KDF.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
2023-01-24 17:16:29 +00:00
Matt Caswell
bea8d70498 Add support for setting a custom TLS Record Layer
This is just an internal API for now. Something like this will be made
public API at some point - but it is likely to be based on the provider
interface rather that a direct setting of a METHOD like we do for now.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
2023-01-24 17:16:29 +00:00
Matt Caswell
e5103dfc12 Remove an unneeded OSSL_RECORD_METHOD function
The reset() function was never called so it can be removed.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19748)
2023-01-24 17:16:29 +00:00
Matt Caswell
626618a09d Ensure our buffer allocation allows for the Explicit IV
Some ciphers/protocol versions have an explicit IV. We need to make sure we
have sufficient room for it in the underlying buffer.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20085)
2023-01-24 11:20:43 +11:00
zhailiangliang
624efd2ba6 ssl3_mac(): Fix possible divide by zero bug
CLA: trivial

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19912)
2022-12-22 12:19:03 +01:00
Maxim Mikityanskiy
cd715b7e7f Add support for KTLS zerocopy sendfile on Linux
TLS device offload allows to perform zerocopy sendfile transmissions.
FreeBSD provides this feature by default, and Linux 5.19 introduced it
as an opt-in. Zerocopy improves the TX rate significantly, but has a
side effect: if the underlying file is changed while being transmitted,
and a TCP retransmission happens, the receiver may get a TLS record
containing both new and old data, which leads to an authentication
failure and termination of connection. This effect is the reason Linux
makes a copy on sendfile by default.

This commit adds support for TLS zerocopy sendfile on Linux disabled by
default to avoid any unlikely backward compatibility issues on Linux,
although sacrificing consistency in OpenSSL's behavior on Linux and
FreeBSD. A new option called KTLSTxZerocopySendfile is added to enable
the new zerocopy behavior on Linux. This option should be used when the
the application guarantees that the file is not modified during
transmission, or it doesn't care about breaking the connection.

The related documentation is also added in this commit. The unit test
added doesn't test the actual functionality (it would require specific
hardware and a non-local peer), but solely checks that it's possible to
set the new option flag.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18650)
2022-11-24 13:19:37 +01:00
Tianjia Zhang
34c2f90d8e KTLS: enable the CCM mode of ktls
The latest kernel (including stable kernel) has fixed the issue
of decryption failure in CCM mode in TLS 1.3. It is necessary to
reenable CCM mode for KTLS.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17207)
2022-11-16 16:46:46 +01:00
Matt Caswell
20c7febc86 Fix memory leak when freeing the DTLS record layer
We need to check whether the sent_messages has actually buffered any
messages in it. If not we won't free the old record layer later when we
clear out the old buffered messages and a memory leak will result.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19586)
2022-11-14 07:51:26 +00:00
Matt Caswell
22094d11a7 Rename SSL3_RECORD to TLS_RL_RECORD
The SSL3 prefix no longer seems appropriate. We choose TLS_RL_RECORD instead
of TLS_RECORD because that type already exists elsewhere.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19586)
2022-11-14 07:51:26 +00:00
Matt Caswell
e9189cc4af Rename SSL3_BUFFER to TLS_BUFFER
The SSL3 prefix no longer seems appropriate.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19586)
2022-11-14 07:51:25 +00:00
Matt Caswell
23c57f001d Move declarations out of record.h and record_local.h
We move many of the declarations in record.h and record_local.h into
locations inside ssl/record/methods instead. Also many declarations were
no longer required and could be removed completely.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19586)
2022-11-14 07:51:17 +00:00
Matt Caswell
c89c21f8f5 Move tls_pad.c into ssl/record/methods
This file is used by libssl record layer methods and therefore should now
be in the methods subdir

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19586)
2022-11-14 07:51:17 +00:00
Matt Caswell
ecacbc5e3c Use the same encryption growth macro consistently
We had two different macros for calculating the potential growth due to
encryption. The macro we use for allocating the underlying buffer should be
the same one that we use for reserving bytes for encryption growth.

Also if we are adding the MAC independently of the cipher algorithm then
the encryption growth will not include that MAC so we should remove it
from the amount of bytes that we reserve for that growth. Otherwise we
might exceed our buffer size and the WPACKET_reserve operation will
fail.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19622)
2022-11-07 17:12:01 +00:00
Matt Caswell
b05fbac1fc Fix dtls_get_max_record_overhead()
We fix dtls_get_max_record_overhead() to give a better value for the max
record overhead. We can't realistically handle the compression case so we
just ignore that.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19516)
2022-11-07 10:59:20 +00:00
Matt Caswell
830eae60a6 Fix the ceiling on how much encryption growth we can have
Stitched ciphersuites can grow by more during encryption than the code
allowed for. We fix the calculation and add an assert to check we go it
right.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19516)
2022-11-07 10:59:20 +00:00
Matt Caswell
8ccde3fc78 Fix read pipelining
During read pipelining we must ensure that the buffer is sufficiently large
to read enough data to fill our pipelines. We also remove some code that
moved data to the start of the packet if we can. This was unnecessary
because of later code which would end up moving it anyway. The earlier move
was also incorrect in the case that |clearold| was 0. This would cause the
read pipelining code to fail with sufficiently large records.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19456)
2022-11-02 11:11:40 +01:00
Matt Caswell
3961af375e Pipeline output/input buf arrays must live until the EVP_Cipher is called
The pipeline input/output buf arrays must remain accessible to the
EVP_CIPHER_CTX until EVP_Cipher is subsequently called. This fixes an
asan error discovered by the newly added pipeline test.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19456)
2022-11-02 11:11:40 +01:00
Matt Caswell
b718f6fcc4 Add a test for TLS pipelining
TLS pipelining provides the ability for libssl to read or write multiple
records in parallel. It requires special ciphers to do this, and there are
currently no built-in ciphers that provide this capability. However, the
dasync engine does have such a cipher, so we add a test for this capability
using that engine.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19456)
2022-11-02 11:11:40 +01:00
Matt Caswell
fba0206da7 Remove some unused OSSL_RECORD_METHOD functions
Remove two function pointers from the OSSL_RECORD_METHOD. Those functions
were no-ops and were never called.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19472)
2022-10-27 10:52:52 +01:00
Matt Caswell
7eb39ecb29 Make SSL_alloc_buffers() and SSL_free_buffers() work again
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19472)
2022-10-27 10:52:52 +01:00
Matt Caswell
50bed93a76 Fix test_tls13_encryption()
This test was disabled during the record write record layer refactor.
We can now enable it again.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19470)
2022-10-25 11:42:11 +01:00
Matt Caswell
b92fc4ae18 Remove some redundant code
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
e158ada6a7 Remove the old buffer management code
We no longer use the old buffer management code now that it has all been
moved to the new record layer.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
43dfa5a931 Remove dtls_write_records
The dtls_write_records function, after the previous series of commits,
was functionally equivalent to tls_write_records_default - so it can be
removed completely.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
421386e392 Move sequence increment to post encryption processing
This change make dtls_write_records virtuall the same as
tls_write_records_default, which will enable us to merge them in a
subsequent commit.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
3abc0d3e85 Remove supurious set of the record type
We already set the record type on the SSL3_RECORD structure. We don't
need to do it again (inconsistently).

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
bed07b1875 Consolidate sequence counter incrementing code
The sequence counter was incremented in numerous different ways in
numerous different locations. We introduce a single function to do this
inside the record layer.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
4f428e86d8 Ensure the record layer is responsible for calculating record overheads
Don't calculate the potential record layer expansion outside of the
record layer. We move some code that was doing that into the record
layer.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
b9e37f8f57 Convert dtls_write_records to use standard record layer functions
We have standard functions for most of the work that dtls_write_records
does - so we convert it to use those functions instead.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
248a9bf21a Start using WPACKET in the dtls write records code
Previously this was writing to the buffers directly. We use the safer
WPACKET instead

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:33 +01:00
Matt Caswell
602ee1f672 Use common tls_write_records() even for DTLS
In practice this just means have a DTLS specific write_records that the
common tls_write_records() just calls. We also replace the use of
ssl3_write_pending() with tls_retry_write_records().

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:32 +01:00
Matt Caswell
4cdd198ec2 Convert dtls_write_records() to return the correct return values
We now use standard record layer return values for this function. We
also convert the code to use RLAYERfatal instead of SSLfatal.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:32 +01:00
Matt Caswell
bf04cbfafe Use record layer buffers for DTLS rather than the buffers in s->rlayer
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:32 +01:00
Matt Caswell
fc938db6cc Move dlts_write_records() function in the record layer
At the this stage we just move the code and don't restructure it to do it
the record layer way yet.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19424)
2022-10-20 14:39:32 +01:00
Matt Caswell
f78c51995e Fix a return value in tls_default_read_n
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
ace3819506 Introduce a step to prepare the BIO before writing
This removes some KTLS specific code from tls_retry_write_records().

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
5bc226ab32 Remove ktls specific code from tls_setup_write_buffers
The KTLS code no longer calls this function so this is not necessary.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
2a354d5463 Add a post encryption processing step
For example in this we add the MAC if we are doing encrypt-then-mac.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
757ef3bab0 Add a prepare for encryption step
This applies any mac that might be necessary, ensures that we have
enough space in the WPACKET to perform the encryption and sets up the
SSL3_RECORD ready for that encryption.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
2582de2590 Move record padding out of tls_common.c
Only tls13_meth.c needs to handle adding record padding. All other
*_meth.c files can ignore it.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
b6f7519bc4 Don't check whether we are using KTLS before calling the cipher function
The KTLS cipher function is a no-op so it doesn't matter if we call it.
We shouldn't special case KTLS in tls_common.c

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
aca70ca81c Defer record header preparation to the protocol methods
We introduce a new function to prepare the record header. KTLS has its own
version since this is done by the kernel.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
7ca61d63e9 Abstract out the record type processing
Remove TLSv1.3 specific processing of the record type out of tls_common.c
and into tls13_meth.c

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
91fe8ff02a Defer write buffer and WPACKET allocation/initialisation to protocol code
We move some protocol specific code for write buffer and WPACKET allocation
and initialisation out of tls_common.c and into the protocol specific files.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
435d88d708 Use the configured max_send_fragment value in the write record layer
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
4bf610bdce Remove enc_write_state
This field was used to track whether a cipher ctx was valid for writing
or not, and also whether we should write out plaintext alerts. With the new
record layer design we no longer need to track whether a cipher ctx is valid
since the whole record layer will be aborted if it is not. Also we have a
different mechanism for tracking whether we should write out plaintext
alerts. Therefore this field is removed from the SSL object.

Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00
Matt Caswell
2f6e24eb5b Remove some unneeded usage of the SSL_CONNECTION object
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19343)
2022-10-12 15:53:31 +01:00