If the peer fragments Finished into multiple pieces, there is no need to
retransmit multiple times.
Change-Id: Ibf708ad079e1633afd420ff1c9be88a80020cba9
Reviewed-on: https://boringssl-review.googlesource.com/3762
Reviewed-by: Adam Langley <agl@google.com>
We don't support DTLS renego. Removing this separately from the rewrite to call
out intentionally dropping this logic.
Change-Id: Ie4428eea0d2dbbb8b4b8b6474df4821de62558cc
Reviewed-on: https://boringssl-review.googlesource.com/3761
Reviewed-by: Adam Langley <agl@google.com>
Instead, add a separate init_with_direction hook. Normal AEADs ignore the
direction, while legacy AEADs must be initialized with it. This avoids
maintaining extra state to support the delayed initialization.
Change-Id: I25271f0e56ee2783a2fd4d4026434154d58dc0a8
Reviewed-on: https://boringssl-review.googlesource.com/3731
Reviewed-by: Adam Langley <agl@google.com>
The old test just sent an empty ServerKeyExchange which is sufficient as we
reject the message early. But be more thorough and implement the actual
ephemeral key logic in the test server.
Change-Id: I016658762e4502c928c051e14d69eea67b5a495f
Reviewed-on: https://boringssl-review.googlesource.com/3650
Reviewed-by: Adam Langley <agl@google.com>
That might be a reasonable check to make, maybe.
DTLS handshake message reading has a ton of other bugs and needs a complete
rewrite. But let's fix this and get a test in now.
Change-Id: I4981fc302feb9125908bb6161ed1a18288c39e2b
Reviewed-on: https://boringssl-review.googlesource.com/3600
Reviewed-by: Adam Langley <agl@google.com>
Test both asynchronous and synchronous versions. This callback is somewhat
different from others. It's NOT called a second time when the handshake is
resumed. This appears to be intentional and not a mismerge from the internal
patch. The caller is expected to set up any state before resuming the handshake
state machine.
Also test the early callback returning an error.
Change-Id: If5e6eddd7007ea5cdd7533b4238e456106b95cbd
Reviewed-on: https://boringssl-review.googlesource.com/3590
Reviewed-by: Adam Langley <agl@google.com>
This involves more synchronization with child exits as the kernel no longer
closes the pre-created pipes for free, but it works on Windows. As long as
TCP_NODELAY is set, the performance seems comparable. Though it does involve
dealing with graceful socket shutdown. I couldn't get that to work on Windows
without draining the socket; not even SO_LINGER worked. Current (untested)
theory is that Windows refuses to gracefully shutdown a socket if the peer
sends data after we've stopped reading.
cmd.ExtraFiles doesn't work on Windows; it doesn't use fds natively, so you
can't pass fds 4 and 5. (stdin/stdout/stderr are special slots in
CreateProcess.) We can instead use the syscall module directly and mark handles
as inheritable (and then pass the numerical values out-of-band), but that
requires synchronizing all of our shim.Start() calls and assuming no other
thread is spawning a process.
PROC_THREAD_ATTRIBUTE_HANDLE_LIST fixes threading problems, but requires
wrapping more syscalls. exec.Cmd also doesn't let us launch the process
ourselves. Plus it still requires every handle in the list be marked
inheritable, so it doesn't help if some other thread is launching a process
with bInheritHandles TRUE but NOT using PROC_THREAD_ATTRIBUTE_HANDLE_LIST.
(Like Go, though we can take syscall.ForkLock there.)
http://blogs.msdn.com/b/oldnewthing/archive/2011/12/16/10248328.aspx
The more natively Windows option seems to be named pipes, but that too requires
wrapping more system calls. (To be fair, that isn't too painful.) They also
involve a listening server, so we'd still have to synchronize with shim.Wait()
a la net.TCPListener.
Then there's DuplicateHandle, but then we need an out-of-band signal.
All in all, one cross-platform implementation with a TCP sockets seems
simplest.
Change-Id: I38233e309a0fa6814baf61e806732138902347c0
Reviewed-on: https://boringssl-review.googlesource.com/3563
Reviewed-by: Adam Langley <agl@google.com>
Align the DTLS and TLS implementations more. s3_pkt.c's version still has
remnants of fragmentable alerts and only one side marks some variables as
const. Also use warning/fatal constants rather than the numbers with comments.
Change-Id: Ie62d3af1747b6fe4336496c047dfccc9d71fde3f
Reviewed-on: https://boringssl-review.googlesource.com/3562
Reviewed-by: Adam Langley <agl@google.com>
Saves making a temporary SSL_CTX and looking at its insides.
Change-Id: Ia351b9b91aec8b813ad7b6e373773396f0975f9a
Reviewed-on: https://boringssl-review.googlesource.com/3561
Reviewed-by: Adam Langley <agl@google.com>
These were added in upstream's 7e159e0133d28bec9148446e8f4dd86c0216d819 for
SCTP. As far as I can tell, they were a no-op there too. The corresponding RT
ticket makes no mention of them.
SSL_get_error checks the retry flags of the BIO already. Specifically it checks
BIO_should_read and BIO_should_write, but those two automatically set
BIO_should_retry.
(Minor, but I noticed them idly. One less thing to think about when the state
machines finally unify.)
Change-Id: I17a956a51895fba383063dee574e0fbe3209f9b0
Reviewed-on: https://boringssl-review.googlesource.com/3560
Reviewed-by: Adam Langley <agl@google.com>
(Which is just an exported wrapper around ssl3_get_cipher_by_value.)
Change-Id: Ibba166015ce59e337ff50963ba20237ac4949aaf
Reviewed-on: https://boringssl-review.googlesource.com/3543
Reviewed-by: Adam Langley <agl@google.com>
Upstream settled in this API, and it's also the one that we expect
internally and that third_party code will expect.
Change-Id: Id7af68cf0af1f2e4d9defd37bda2218d70e2aa7b
Reviewed-on: https://boringssl-review.googlesource.com/3542
Reviewed-by: Adam Langley <agl@google.com>
We can pass the fragment pointer to dtls1_retransmit_message rather than
having it look it up again.
Change-Id: If6957428418a44e7ceac91a93f7c6032d331d9d8
Reviewed-on: https://boringssl-review.googlesource.com/3510
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Also move BIO_print_errors_fp up a level so it's less repetitive. There's
enough exit points now that it doesn't seem like adding a separate return exit
code for each has held up. (Maybe there should be a macro that samples
__LINE__...)
Change-Id: I120e59caaa96185e80cf51ea801a5e1f149b1b39
Reviewed-on: https://boringssl-review.googlesource.com/3530
Reviewed-by: Adam Langley <agl@google.com>
Tighten up the requirements for False Start. At this point, neither
AES-CBC or RC4 are something that we want to use unless we're sure that
the server wants to speak them.
Rebase of original CL at: https://boringssl-review.googlesource.com/#/c/1980/
BUG=427721
Change-Id: I9ef7a596edeb8df1ed070aac67c315b94f3cc77f
Reviewed-on: https://boringssl-review.googlesource.com/3501
Reviewed-by: Adam Langley <agl@google.com>
Also adds a flag to runner.go to make it more suitable for printing to a pipe.
Change-Id: I26fae21f3e4910028f6b8bfc4821c8c595525504
Reviewed-on: https://boringssl-review.googlesource.com/3490
Reviewed-by: Adam Langley <agl@google.com>
I believe this is a remnant of DSA. The logic strangely fails to check for
failure and then goes out of its way to ERR_clear_error. I believe this is so
that keys that are missing parameters silently move on. This dates to
upstream's dfeab0689f69c0b4bd3480ffd37a9cacc2f17d9c, which is SSLeay 0.9.1b. At
that time, EVP_PKEY_copy_parameters only did anything for DSA. (Now it only
does anything for ECDSA.)
My read is that this comes from DSA in PKIX's "optional domain parameters"
craziness. RFC 3279 says:
If the DSA domain parameters are omitted from the SubjectPublicKeyInfo
AlgorithmIdentifier and the CA signed the subject certificate using a
signature algorithm other than DSA, then the subject's DSA domain parameters
are distributed by other means.
This was probably part of some weird thing where, if your certificate is
missing parameters, the server would know what to use based on the private key.
(Also this was making the malloc tests unhappy.)
Change-Id: I8d8122a9f50a19e2bbe067f311a8e2d30774935c
Reviewed-on: https://boringssl-review.googlesource.com/3484
Reviewed-by: Adam Langley <agl@google.com>
It may fail because the BIO_write to the memory BIO can allocate.
Unfortunately, this bubbles up pretty far up now that we've moved the handshake
hash to ssl3_set_handshake_header.
Change-Id: I58884347a4456bb974ac4783078131522167e29d
Reviewed-on: https://boringssl-review.googlesource.com/3483
Reviewed-by: Adam Langley <agl@google.com>
Found while diagnosing some crashes and hangs in the malloc tests. This (and
the follow-up) get us further but does not quite let the malloc tests pass
quietly, even without valgrind. DTLS silently ignores some malloc failures
(confusion with silently dropping bad packets) which then translate to hangs.
Change-Id: Ief06a671e0973d09d2883432b89a86259e346653
Reviewed-on: https://boringssl-review.googlesource.com/3482
Reviewed-by: Adam Langley <agl@google.com>
False Start is the name it's known by now. Deprecate the old API and expose new
ones with the new name.
Change-Id: I32d307027e178fd7d9c0069686cc046f75fdbf6f
Reviewed-on: https://boringssl-review.googlesource.com/3481
Reviewed-by: Adam Langley <agl@google.com>
I found no users of this. We can restore it if needbe, but I don't expect
anyone to find it useful in its current form. The API is suspect for the same
reasons DTLSv1_listen was. An SSL object is stateful and assumes you already
have the endpoint separated out.
If we ever need it, server-side HelloVerifyRequest and DTLSv1_listen should be
implemented by a separate stateless listener that statelessly handles
cookieless ClientHello + HelloVerifyRequest. Once a ClientHello with a valid
cookie comes in, it sets up a stateful SSL object and passes control along to
that.
Change-Id: I86adc1dfb6a81bebe987784c36ad6634a9a1b120
Reviewed-on: https://boringssl-review.googlesource.com/3480
Reviewed-by: Adam Langley <agl@google.com>
Caught by malloc valgrind tests on Basic-Client-Sync. Also one by inspection
and verified with valgrind. Those should pass now with the exception of
CRYPTO_free_ex_data being internally implemented with malloc.
(Clearly we next should make our malloc tests assert that the containing
function fails to catch when we fail to check for some error and things
silently move one.)
Change-Id: I56c51dc8a32a7d3c7ac907d54015dc241728c761
Reviewed-on: https://boringssl-review.googlesource.com/3440
Reviewed-by: Adam Langley <agl@google.com>
pqueue_free requires the queue be empty.
Change-Id: I633e18fe71ddec51d6005210fcb6570ef53b9808
Reviewed-on: https://boringssl-review.googlesource.com/3410
Reviewed-by: Adam Langley <agl@google.com>
Win64 fires significantly more warnings than Win32. Also some recent
changes made it grumpy.
(We might want to reconsider enabling all of MSVC's warnings. Given the sorts
of warnings some of these are, I'm not sure MSVC's version of -Wall -Werror is
actually tenable. Plus, diverging from the Chromium build, especially before
the bots are ready, is going to break pretty readily.)
Change-Id: If3b8feccf910ceab4a233b0731e7624d7da46f87
Reviewed-on: https://boringssl-review.googlesource.com/3420
Reviewed-by: Adam Langley <agl@google.com>
We have got to get rid of that parameter...
Change-Id: I17f2d1282636f7d077f21dabdc135eecf9300998
Reviewed-on: https://boringssl-review.googlesource.com/3384
Reviewed-by: Adam Langley <agl@google.com>
Previously, error strings were kept in arrays for each subdirectory and
err.c would iterate over them all and insert them at init time to a hash
table.
This means that, even if you have a shared library and lots of processes
using that, each process has ~30KB of private memory from building that
hash table.
This this change, all the error strings are built into a sorted list and
are thus static data. This means that processes can share the error
information and it actually saves binary space because of all the
pointer overhead in the old scheme. Also it saves the time taken
building the hash table at startup.
This removes support for externally-supplied error string data.
Change-Id: Ifca04f335c673a048e1a3e76ff2b69c7264635be
OpenSSL's internal names for the ciphers are not the standard ones and are not
easy to consistently map to the standard ones. Add an API to get the real names
out. (WebRTC wants an API to get the standard names out.)
Also change some incorrect flags on SHA-256 TLS 1.2 ciphers;
SSL_HANDSHAKE_MAC_DEFAULT and SSL_HANDSHAKE_MAC_SHA256 are the same after TLS
1.2. A TLS 1.2 cipher should be tagged explicitly with SHA-256. (This avoids
tripping a check in SSL_CIPHER_get_rfc_name which asserts that default-hash
ciphers only ever use SHA-1 or MD5 for the bulk cipher MAC.)
Change-Id: Iaec2fd4aa97df29883094d3c2ae60f0ba003bf07
Nothing else on SSL* is thread-safe. (Also SSL_set_generate_session_id is never
called.) This removes the last use of CRYPTO_LOCK_SSL.
Change-Id: I4cf8c05d7cef4ea27962ce29902649317c22f74d
Reviewed-on: https://boringssl-review.googlesource.com/3361
Reviewed-by: Adam Langley <agl@google.com>
Found by running malloc tests with -valgrind. Unfortunately, the next one is
deep in crypto/asn1 itself, so I'm going to stop here for now.
Change-Id: I7a33971ee07c6b7b7a98715f2f18e0f29380c0a1
Reviewed-on: https://boringssl-review.googlesource.com/3350
Reviewed-by: Adam Langley <agl@google.com>
We have a stateful object hanging off the SSL* now. May as well use it and
avoid having to remember to reset that.
Change-Id: I5fc5269aa9b158517dd551036e658afaa2ef9acd
Reviewed-on: https://boringssl-review.googlesource.com/3349
Reviewed-by: Adam Langley <agl@google.com>
It's currently a mix of GoogleCPlusPlusStyle and unix_hacker_style. Since it's
now been thoroughly C++-ified, let's go with the former. This also matches the
tool, our other bit of C++ code.
Change-Id: Ie90a166006aae3b8f41628dbb35fcd64e99205df
Reviewed-on: https://boringssl-review.googlesource.com/3348
Reviewed-by: Adam Langley <agl@google.com>
This is more consistent with other asynchronous hooks and gets it working in
DTLS.
Change-Id: Ia17d9d23910e8665b2756516ba729dffc79af8c0
Reviewed-on: https://boringssl-review.googlesource.com/3346
Reviewed-by: Adam Langley <agl@google.com>
It doesn't appear that logic (added in upstream's
b7cfcfb7f8e17c17f457b3384010eb027f3aad72) is protecting against anything. On
the contrary, it prohibits implementing CRYPTO_add with real atomic operations!
There's no guarantee that those operations will interact with the locked
implementation.
https://www.mail-archive.com/openssl-users@openssl.org/msg63176.html
As long as ssl->session points to the same session, we know the session won't
be freed. There is no lock protecting, say, SSL_set_session, but a single SSL*
does not appear to be safe to use across threads. If this were to be supported,
both should be guarded by CRYPTO_LOCK_SSL (which is barely used).
CRYPTO_LOCK_SSL_SESSION isn't sufficient anyway; it could sample while
SSL_set_session is busy swapping out the now freed old session with the new.
Change-Id: I54623d0690c55c2c86720406ceff545e2e5f2f8f
Reviewed-on: https://boringssl-review.googlesource.com/3345
Reviewed-by: Adam Langley <agl@google.com>
The fact that an SSL_SESSION is reference-counted is already part of the API.
If an external application (like, say, the test code) wishes to participate, we
should let it.
Change-Id: If04d26a35141da14fd8d917de6cc1c10537ad11a
Reviewed-on: https://boringssl-review.googlesource.com/3344
Reviewed-by: Adam Langley <agl@google.com>
Start exercising the various async callbacks, starting with channel ID. These
will run under the existing state machine coverage tests; -async will also
enable every asynchronous callback we can.
Change-Id: I173148d93d3a9c575b3abc3e2aceb77968b88f0e
Reviewed-on: https://boringssl-review.googlesource.com/3342
Reviewed-by: Adam Langley <agl@google.com>
bssl_shim rather needs it. It doesn't even free the SSL* properly most of the
time. Now that it does, this opens the door to running malloc tests under
a leak checker (because it's just not slow enough right now).
Change-Id: I37d2004de27180c41b42a6d9e5aea02caf9b8b32
Reviewed-on: https://boringssl-review.googlesource.com/3340
Reviewed-by: Adam Langley <agl@google.com>
This is consistent with ignoring writeRecord failures. Without doing this, the
DTLS MinimumVersion test now flakily fails with:
FAILED (MinimumVersion-Client-TLS12-TLS1-DTLS)
bad error (wanted ':UNSUPPORTED_PROTOCOL:' / 'remote error: protocol version not supported'): local error 'write unix @: broken pipe', child error 'exit status 2', stdout:
2092242157:error:1007b1a7:SSL routines:ssl3_get_server_hello:UNSUPPORTED_PROTOCOL:../ssl/s3_clnt.c:783:
This is because the MinimumVersion tests assert on /both/ expectedError and
expectedLocalError. The latter is valuable as it asserts on the alert the peer
returned. (I would like us to add more such assertions to our tests where
appropriate.) However, after we send ServerHello, we also send a few messages
following it. This races with the peer shutdown and we sometimes get EPIPE
before reading the alert.
Change-Id: I3fe37940a6a531379673a00976035f8e76e0f825
Reviewed-on: https://boringssl-review.googlesource.com/3337
Reviewed-by: Adam Langley <agl@google.com>
This makes the following changes:
- SSL_cutthrough_complete no longer rederives whether cutthrough happened and
just maintains a handshake bit.
- SSL_in_init no longer returns true if we are False Starting but haven't
completed the handshake. That logic was awkward as it depended on querying
in_read_app_data to force SSL_read to flush the entire handshake. Defaulting
SSL_in_init to continue querying the full handshake and special-casing
SSL_write is better. E.g. the check in bidirectional SSL_shutdown wants to know
if we're in a handshake. No internal consumer of
SSL_MODE_HANDSHAKE_CUTTHROUGH ever queries SSL_in_init directly.
- in_read_app_data is gone now that the final use is dead.
Change-Id: I05211a116d684054dfef53075cd277b1b30623b5
Reviewed-on: https://boringssl-review.googlesource.com/3336
Reviewed-by: Adam Langley <agl@google.com>
It may take up to two iterations of s->handshake_func before it is safe to
continue. Fortunately, even if anything was using False Start this way
(Chromium doesn't), we don't inherit NSS's security bug. The "redundant" check
in the type match case later on in this function saves us.
Amusingly, the success case still worked before this fix. Even though we fall
through to the post-handshake codepath and get a handshake record while
"expecting" app data, the handshake state machine is still pumped thanks to a
codepath meant for renego!
Change-Id: Ie129d83ac1451ad4947c4f86380879db8a3fd924
Reviewed-on: https://boringssl-review.googlesource.com/3335
Reviewed-by: Adam Langley <agl@google.com>
The new V2ClientHello sniff asserts, for safety, that nothing else has
initialized the record layer before it runs. However, OpenSSL allows you to
avoid explicitly calling SSL_connect/SSL_accept and instead let
SSL_read/SSL_write implicitly handshake for you. This check happens at a fairly
low-level in the ssl3_read_bytes function, at which point the record layer has
already been initialized.
Add some tests to ensure this mode works.
(Later we'll lift the handshake check to a higher-level which is probably
simpler.)
Change-Id: Ibeb7fb78e5eb75af5411ba15799248d94f12820b
Reviewed-on: https://boringssl-review.googlesource.com/3334
Reviewed-by: Adam Langley <agl@google.com>
This works fine, but I believe NSS had a bug here a couple years ago. Also move
all the Skip* bug options next to each other in order.
Change-Id: I72dcb3babeee7ba73b3d7dc5ebef2e2298e37438
Reviewed-on: https://boringssl-review.googlesource.com/3333
Reviewed-by: Adam Langley <agl@google.com>
This is the source of much of renegotiation's complexity, and of OpenSSL's
implementation of it. In practice, we only care about renegotiation because of
the client auth hack. There, we can safely assume that no server will send
application data between sending the HelloRequest and completing the handshake.
BUG=429450
Change-Id: I37f5abea5fdedb1d53e24ceb11f71287c74bb777
Reviewed-on: https://boringssl-review.googlesource.com/3332
Reviewed-by: Adam Langley <agl@google.com>
EVP_Digest can fail on malloc failure. May as well tidy that. Also make that
humongous comment less verbose.
Change-Id: I0ba74b901a5ac68711b9ed268b4202dc19242909
Reviewed-on: https://boringssl-review.googlesource.com/3331
Reviewed-by: Adam Langley <agl@google.com>
We have test coverage for invalid alerts, but not for normal ones on the DTLS
side.
Change-Id: I359dce8d4dc80dfa99b5d8bacd73f48a8e4ac310
Reviewed-on: https://boringssl-review.googlesource.com/3291
Reviewed-by: Adam Langley <agl@google.com>
The check on the DTLS side was broken anyway. On the TLS side, the spec does
say to ignore them, but there should be no need for this in future-proofing and
NSS doesn't appear to be lenient here. See also
https://boringssl-review.googlesource.com/#/c/3233/
Change-Id: I0846222936c5e08acdcfd9d6f854a99df767e468
Reviewed-on: https://boringssl-review.googlesource.com/3290
Reviewed-by: Adam Langley <agl@google.com>
SSL_AEAD_CTX ownership is currently too confusing. Instead, rely on the lack of
renego, so the previous epoch always uses the NULL cipher. (Were we to support
DTLS renego, we could keep track of s->d1->last_aead_write_ctx like
s->d1->last_write_sequence, but it isn't worth it.)
Buffered messages also tracked an old s->session, but this is unnecessary. The
s->session NULL check in tls1_enc dates to the OpenSSL initial commit and is
redundant with the aead NULL check.
Change-Id: I9a510468d95934c65bca4979094551c7536980ae
Reviewed-on: https://boringssl-review.googlesource.com/3234
Reviewed-by: Adam Langley <agl@google.com>
Nothing recognized through those codepaths is fragmentable in DTLS. Also remove
an unnecessary epoch check. It's not possible to process a record from the
wrong epoch.
Change-Id: I9d0f592860bb096563e2bdcd2c8e50a0d2b65f59
Reviewed-on: https://boringssl-review.googlesource.com/3232
Reviewed-by: Adam Langley <agl@google.com>
This is only applicable for renego and is wrong anyway. The handshake_read_seq
check doesn't account for message reordering. The correct check is if we
haven't yet processed the peer's CCS in the current handshake.
(The other Finished special-case needs to stay, however.)
Change-Id: Ic42897aab7140285ce2f3be24d52b81851b912b5
Reviewed-on: https://boringssl-review.googlesource.com/3231
Reviewed-by: Adam Langley <agl@google.com>
We will not support any form of DTLS renego.
Change-Id: I6eab4ed12a131ad27fdb9b5ea7cc1f35d872cd43
Reviewed-on: https://boringssl-review.googlesource.com/3230
Reviewed-by: Adam Langley <agl@google.com>
It has no callers in internal code.
Change-Id: I53cf1769b71be6a0441533b6af7d3f64aab5098a
Reviewed-on: https://boringssl-review.googlesource.com/3219
Reviewed-by: Adam Langley <agl@google.com>
We have no use for DTLS renego and it's even more complex than TLS renego.
Change-Id: I8680ab361cc8761dd7fc8dfb1bfe1ff4abc6612f
Reviewed-on: https://boringssl-review.googlesource.com/3218
Reviewed-by: Adam Langley <agl@google.com>
For now, only test reorderings when we always or never fragment messages.
There's a third untested case: when full messages and fragments are mixed. That
will be tested later after making it actually work.
Change-Id: Ic4efb3f5e87b1319baf2d4af31eafa40f6a50fa6
Reviewed-on: https://boringssl-review.googlesource.com/3216
Reviewed-by: Adam Langley <agl@google.com>
No behavior change. This is in preparation for buffering a flight of handshake
messages to reorder vigorously on flush.
Change-Id: Ic348829b340bf58d28f332027646559cb11046ac
Reviewed-on: https://boringssl-review.googlesource.com/3215
Reviewed-by: Adam Langley <agl@google.com>
It dates to 2000 from upstream and is only used when serving client auth to
Netscape. It will also get in the way when we get to merging DTLS and TLS
handshake functions because NETSCAPE_HANG_BUG is not valid for DTLS as it is
(the handshake fragmentation code will get confused).
Removing per comment on https://boringssl-review.googlesource.com/#/c/2602/
Change-Id: Ia2d086205bbfed002dc33b2203a47206f373b820
Reviewed-on: https://boringssl-review.googlesource.com/3214
Reviewed-by: Adam Langley <agl@google.com>
All but one field is a no-op.
Change-Id: Ib7bc59a12ce792d5e42fb6e04a4aff54f42643a9
Reviewed-on: https://boringssl-review.googlesource.com/3213
Reviewed-by: Adam Langley <agl@google.com>
This extends the packet adaptor protocol to send three commands:
type command =
| Packet of []byte
| Timeout of time.Duration
| TimeoutAck
When the shim processes a Timeout in BIO_read, it sends TimeoutAck, fails the
BIO_read, returns out of the SSL stack, advances the clock, calls
DTLSv1_handle_timeout, and continues.
If the Go side sends Timeout right between sending handshake flight N and
reading flight N+1, the shim won't read the Timeout until it has sent flight
N+1 (it only processes packet commands in BIO_read), so the TimeoutAck comes
after N+1. Go then drops all packets before the TimeoutAck, thus dropping one
transmit of flight N+1 without having to actually process the packets to
determine the end of the flight. The shim then sees the updated clock, calls
DTLSv1_handle_timeout, and re-sends flight N+1 for Go to process for real.
When dropping packets, Go checks the epoch and increments sequence numbers so
that we can continue to be strict here. This requires tracking the initial
sequence number of the next epoch.
The final Finished message takes an additional special-case to test. DTLS
triggers retransmits on either a timeout or seeing a stale flight. OpenSSL only
implements the former which should be sufficient (and is necessary) EXCEPT for
the final Finished message. If the peer's final Finished message is lost, it
won't be waiting for a message from us, so it won't time out anything. That
retransmit must be triggered on stale message, so we retransmit the Finished
message in Go.
Change-Id: I3ffbdb1de525beb2ee831b304670a3387877634c
Reviewed-on: https://boringssl-review.googlesource.com/3212
Reviewed-by: Adam Langley <agl@google.com>
This reverts commit c67a3ae6ba. With a
deterministic clock, we can now go back to being strict about retransmits. Our
tests will now require that the shim only retransmit when we expect it to.
Change-Id: Iab1deb9665dcd294790c8253d920089e83a9140c
Reviewed-on: https://boringssl-review.googlesource.com/3211
Reviewed-by: Adam Langley <agl@google.com>
This is so the tests needn't be sensitive to the clock. It is, unfortunately, a
test-only hook, but the DTLS retransmit/timeout logic more-or-less requires it
currently. Use this hook to, for now, freeze the clock at zero. This makes the
tests deterministic.
It might be worth designing a saner API in the future. The current one,
notably, requires that the caller's clock be compatible with the one we
internally use. It's also not clear whether the caller needs to call
DTLSv1_handle_timeout or can just rely on the state machine doing it internally
(as it does do). But mock clocks are relatively tame and WebRTC wants to
compile against upstream OpenSSL for now, so we're limited in how much new API
we can build.
Change-Id: I7aad51570596f69275ed0fc1a8892393e4b7ba13
Reviewed-on: https://boringssl-review.googlesource.com/3210
Reviewed-by: Adam Langley <agl@google.com>
Including string.h in base.h causes any file that includes a BoringSSL
header to include string.h. Generally this wouldn't be a problem,
although string.h might slow down the compile if it wasn't otherwise
needed. However, it also causes problems for ipsec-tools in Android
because OpenSSL didn't have this behaviour.
This change removes string.h from base.h and, instead, adds it to each
.c file that requires it.
Change-Id: I5968e50b0e230fd3adf9b72dd2836e6f52d6fb37
Reviewed-on: https://boringssl-review.googlesource.com/3200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
The variable switches the default type for add_library from STATIC to SHARED.
We can condition additional stuff on that for convenience. (tabtest still
doesn't build.)
BoringSSL as any kind of stable system shared library is still very much
unsupported, but this is probably handy for making sure we don't forget all
those pesky OPENSSL_EXPORTs.
Change-Id: I66ab80bcddbf3724e03e85384141fdf4f4acbc2e
Reviewed-on: https://boringssl-review.googlesource.com/3092
Reviewed-by: Adam Langley <agl@google.com>
This is fatal for TLS but buffered in DTLS. The buffering isn't strictly
necessary (it would be just as valid to drop the record on the floor), but so
long as we want this behavior it should have a test.
Change-Id: I5846bb2fe80d78e25b6dfad51bcfcff2dc427c3f
Reviewed-on: https://boringssl-review.googlesource.com/3029
Reviewed-by: Adam Langley <agl@google.com>
They're not in the duplicated handshake state machines anyway. But we still
shouldn't negotiate them. d1_pkt.c assumes Finished is the only post-CCS
handshake message. An unexpected handshake message in the current epoch may
either be a retransmit/out-of-order message from the previous handshake, or a
message from the next handshake (also potentially out-of-order). In the former
case, we shouldn't spin up another handshake state machine instance.
(This assumption is required due to a protocol bug. DTLS resets sequence
numbers after a handshake, so it is necessary to categorize handshake fragments
by pre-CCS and post-CCS to distinguish between retransmit and renego.)
Change-Id: Ib3c1c7085c729e36a40f7ff14494733156924a24
Reviewed-on: https://boringssl-review.googlesource.com/3028
Reviewed-by: Adam Langley <agl@google.com>
This regressed in e95d20dcb8. EVP_AEAD will push
errors on the error queue (unlike the EVP_CIPHER codepath which checked
everything internally to ssl/ and didn't bother pushing anything). This meant
that a dropped packet would leave junk in the error queue.
Later, when SSL_read returns <= 0 (EOF or EWOULDBLOCK), the non-empty error
queue check in SSL_get_error kicks in and SSL_read looks to have failed.
BUG=https://code.google.com/p/webrtc/issues/detail?id=4214
Change-Id: I1e5e41c77a3e5b71e9eb0c72294abf0da677f840
Reviewed-on: https://boringssl-review.googlesource.com/2982
Reviewed-by: Adam Langley <agl@google.com>
This regressed in fcf25833bc. 0 return code on
unclean shutdown means the underlying BIO returned EOF, didn't push any error
code, but we haven't seen close_notify yet. The intent seems to be that you go
check errno or some BIO-specific equivalent if you care about close_notify.
Make sure test code routes all SSL_read return codes through SSL_get_error
since that's supposed to work in all cases.
(Note that rv == 0 can still give SSL_ERROR_SSL if the error queue is not
empty.)
Change-Id: I45bf9614573f876d93419ce169a4e0d9ceea9052
Reviewed-on: https://boringssl-review.googlesource.com/2981
Reviewed-by: Adam Langley <agl@google.com>
The distinction between publicly and non-publicly invalid is barely acted upon
and slightly silly now that the CBC padding check has been folded into
EVP_AEAD.
Change-Id: Idce4b9b8d29d624e3c95243a147265d071612127
Reviewed-on: https://boringssl-review.googlesource.com/2980
Reviewed-by: Adam Langley <agl@google.com>
This is an initial cut at aarch64 support. I have only qemu to test it
however—hopefully hardware will be coming soon.
This also affects 32-bit ARM in that aarch64 chips can run 32-bit code
and we would like to be able to take advantage of the crypto operations
even in 32-bit mode. AES and GHASH should Just Work in this case: the
-armx.pl files can be built for either 32- or 64-bit mode based on the
flavour argument given to the Perl script.
SHA-1 and SHA-256 don't work like this however because they've never
support for multiple implementations, thus BoringSSL built for 32-bit
won't use the SHA instructions on an aarch64 chip.
No dedicated ChaCha20 or Poly1305 support yet.
Change-Id: Ib275bc4894a365c8ec7c42f4e91af6dba3bd686c
Reviewed-on: https://boringssl-review.googlesource.com/2801
Reviewed-by: Adam Langley <agl@google.com>
SSL_library_init already loads the error strings (unlike upstream). Code which
calls both will end up loading error strings twice. Instead make the second
call a no-op.
Change-Id: Ifd34ab20ed46aabeba14661e58f8dac2bbb29f69
Reviewed-on: https://boringssl-review.googlesource.com/2790
Reviewed-by: Adam Langley <agl@google.com>
The under 32 constraint is silly; it's to check for duplicate curves in
library-supplied configuration. That API is new as of 1.0.2. It doesn't seem
worth bothering; if the caller supplies a repeated value, may as well emit a
repeated one and so be it. (Probably no one will ever call that function
outside of maybe test code anyway.)
While I'm here, remove the 0 constraint too. It's not likely to change, but
removing the return value overload seems easier than keeping comments about it
comments about it.
Change-Id: I01d36dba1855873875bb5a0ec84b040199e0e9bc
Reviewed-on: https://boringssl-review.googlesource.com/2844
Reviewed-by: Adam Langley <agl@google.com>
We only implement four curves (P-224, P-256, P-384, and P-521) and only
advertise the latter three by default. Don't maintain entries corresponding to
all the unimplemented curves.
Change-Id: I1816a10c6f849ca1d9d896bc6f4b64cd6b329481
Reviewed-on: https://boringssl-review.googlesource.com/2843
Reviewed-by: Adam Langley <agl@google.com>
They both happen to be zero, but OBJ_undef is a type error; OBJ_foo expands to
a comma-separated list of integers.
Change-Id: Ia5907dd3bc83240b7cc98af6456115d2efb48687
Reviewed-on: https://boringssl-review.googlesource.com/2842
Reviewed-by: Adam Langley <agl@google.com>
When parsing ClientHello clear any existing extension state from
SRP login and SRTP profile.
(Imported from upstream's 4f605ccb779e32a770093d687e0554e0bbb137d3)
More state that should be systematically reset across handshakes. Add a reset
on the ServerHello end too since that was missed.
Change-Id: Ibb4549acddfd87caf7b6ff853e2adbfa4b7e7856
Reviewed-on: https://boringssl-review.googlesource.com/2838
Reviewed-by: Adam Langley <agl@google.com>
write_quota should only be decremented by 1 in datagram mode, otherwise we'll
underflow and always allow writes through. This does not cause any existing
tests to fail.
(It will be useful once the bug in dtls1_do_write is fixed.)
Change-Id: I42aa001d7264790a3726269890635f679497fb1c
Reviewed-on: https://boringssl-review.googlesource.com/2831
Reviewed-by: Adam Langley <agl@google.com>
The existing comments are not very helpful. This code is also quite buggy.
Document two of them as TODOs.
Change-Id: Idfaf93d9c3b8b1ee92f2fb0d292ef513b5f6d824
Reviewed-on: https://boringssl-review.googlesource.com/2830
Reviewed-by: Adam Langley <agl@google.com>
BIO_ctrls do not have terribly well-defined return values on error. (Though the
existing ones seem to all return 0, not -1, on nonexistant operation.)
Change-Id: I08497f023ce3257c253aa71517a98b2fe73c3f74
Reviewed-on: https://boringssl-review.googlesource.com/2829
Reviewed-by: Adam Langley <agl@google.com>
g_probably_mtu and dtls1_guess_mtu is a bunch of logic for guessing the right
MTU, but it only ever returns the maximum (the input is always zero). Trim that
down to only what it actually does.
Change-Id: If3afe3f68ccb36cbf9c4525372564d16a4bbb73f
Reviewed-on: https://boringssl-review.googlesource.com/2828
Reviewed-by: Adam Langley <agl@google.com>
The retry doesn't actually work when we're sending a non-initial fragment; the
s->init_off != 0 block will get re-run each iteration through and continually
prepend headers. It can also infinite loop if the BIO reports
BIO_CTRL_DGRAM_MTU_EXCEEDED but either fails to report an MTU or reports an MTU
that always rounds up to the minimum. See upstream's
d3d9eef31661633f5b003a9e115c1822f79d1870.
WebRTC doesn't participate in any of the MTU logic and inherits the default
MTU, so just remove it for now.
Change-Id: Ib2ed2ba016b7c229811741fb7369c015ba0b551f
Reviewed-on: https://boringssl-review.googlesource.com/2827
Reviewed-by: Adam Langley <agl@google.com>
That setting means that the MTU is provided externally via SSL_set_mtu.
(Imported from upstream's 001235778a6e9c645dc0507cad6092d99c9af8f5)
Change-Id: I4e5743a9dee734ddd0235f080aefe98a7365aaf6
Reviewed-on: https://boringssl-review.googlesource.com/2826
Reviewed-by: Adam Langley <agl@google.com>
Based in part on upstream's cf75017bfd60333ff65edf9840001cd2c49870a3. This
situation really shouldn't be able to happen, but between no static asserts
that the minimum MTU is always large enough and a bug in reseting the MTU later
(to be fixed be a follow-up import from upstream), check these and return a
useful error code.
Change-Id: Ie853e5d35a6a7bc9c0032e74ae71529d490f4fe2
Reviewed-on: https://boringssl-review.googlesource.com/2825
Reviewed-by: Adam Langley <agl@google.com>
BoringSSL currently retransmits non-deterministically on an internal timer
(rather than one supplied externally), so the tests currently fail flakily
depending on timing. Valgrind is a common source for this. We still assume an
in-order and reliable channel, but drop retransmits silently:
- Handshake messages may arrive with old sequence numbers.
- Retransmitted CCS records arrive from the previous epoch.
- We may receive a retransmitted Finished after we believe the handshake has
completed. (Aside: even in a real implementation, only Finished is possible
here. Even with out-of-order delivery, retransmitted or reordered messages
earlier in the handshake come in under a different epoch.)
Note that because DTLS renego and a Finished retransmit are ambiguous at the
record layer[*], this precludes us writing tests for DTLS renego. But DTLS
renego should get removed anyway. As BoringSSL currently implements renego,
this ambiguity is also a source of complexity in the real implementation. (See
the SSL3_MT_FINISHED check in dtls1_read_bytes.)
[*] As a further fun aside, it's also complex if dispatching renego vs Finished
after handshake message reassembly. The spec doesn't directly say the sequence
number is reset across renegos, but it says "The first message each side
transmits in /each/ handshake always has message_seq = 0". This means that such
an implementation needs the handshake message reassembly logic be aware that a
Finished fragment with high sequence number is NOT an out-of-order fragment for
the next handshake.
Change-Id: I35d13560f82bcb5eeda62f4de1571d28c818cc36
Reviewed-on: https://boringssl-review.googlesource.com/2770
Reviewed-by: Adam Langley <agl@google.com>
As of our 82b7da271f, an SSL_SESSION created
externally always has a cipher set. Unknown ciphers are rejected early. Prior
to that, an SSL_SESSION would only have a valid cipher or valid cipher_id
depending on whether it came from an internal or external session cache.
See upstream's 6a8afe2201cd888e472e44225d3c9ca5fae1ca62 and
c566205319beeaa196e247400c7eb0c16388372b for more context.
Since we don't get ourselves into this strange situation and s->cipher is now
always valid for established SSL_SESSION objects (the existence of
unestablished SSL_SESSION objects during a handshake is awkward, but something
to deal with later), do away with s->cipher_id altogether. An application
should be able to handle failing to parse an SSL_SESSION instead of parsing it
successfuly but rejecting all resumptions.
Change-Id: I2f064a815e0db657b109c7c9269ac6c726d1ffed
Reviewed-on: https://boringssl-review.googlesource.com/2703
Reviewed-by: Adam Langley <agl@google.com>
This CL removes the last of the EVP_CIPHER codepath in ssl/. The dead code is
intentionally not pruned for ease of review, except in DTLS-only code where
adding new logic to support both, only to remove half, would be cumbersome.
Fixes made:
- dtls1_retransmit_state is taught to retain aead_write_ctx rather than
enc_write_ctx.
- d1_pkt.c reserves space for the variable-length nonce when echoed into the
packet.
- dtls1_do_write sizes the MTU based on EVP_AEAD max overhead.
- tls1_change_cipher_state_cipher should not free AEAD write contexts in DTLS.
This matches the (rather confused) ownership for the EVP_CIPHER contexts.
I've added a TODO to resolve this craziness.
A follow-up CL will remove all the resultant dead code.
Change-Id: I644557f4db53bbfb182950823ab96d5e4c908866
Reviewed-on: https://boringssl-review.googlesource.com/2699
Reviewed-by: Adam Langley <agl@google.com>
This introduces another knob into SSL_AEAD_CTX to omit the version from the ad
parameter. It also allows us to fold a few more SSL3_ENC_METHOD hooks together.
Change-Id: I6540d410d4722f734093554fb434dab6e5217d4f
Reviewed-on: https://boringssl-review.googlesource.com/2698
Reviewed-by: Adam Langley <agl@google.com>
This lets us fold away the SSLv3-specific generate_master_secret. Once SSLv3
uses AEADs, others will fold away as well.
Change-Id: I27c1b75741823bc6db920d35f5dd5ce71b6fdbb3
Reviewed-on: https://boringssl-review.googlesource.com/2697
Reviewed-by: Adam Langley <agl@google.com>
Fix up the generate_master_secret parameter while we're here.
Change-Id: I1c80796d1f481be0c3eefcf3222f2d9fc1de4a51
Reviewed-on: https://boringssl-review.googlesource.com/2696
Reviewed-by: Adam Langley <agl@google.com>
size_t all the parameters. Also explicitly label label as label. This is in
preparation for pulling the PRF out into SSL3_ENC_METHOD so more of the
SSL3_ENC_METHOD hooks may be shared between SSLv3 and TLS once SSLv3 uses
stateful AEADs.
Also port away from EVP_PKEY_HMAC and use HMAC_CTX directly. The abstraction
doesn't buy much and is different from all the other EVP_DigestSign* functions.
There are few enough users within BoringSSL and Google that we can probably
deprecate and eventually remove it altogether.
Change-Id: I5d4529438c8a2a992fc199388a0c9e73bd6d2e06
Reviewed-on: https://boringssl-review.googlesource.com/2695
Reviewed-by: Adam Langley <agl@google.com>
The EVP_CIPHER codepath should no longer be used with TLS. It still exists for
DTLS and SSLv3. The AEAD construction in TLS does not allow for
variable-overhead AEADs, so stateful AEADs do not include the length in the ad
parameter. Rather the AEADs internally append the unpadded length once it is
known. EVP_aead_rc4_md5_tls is modified to account for this.
Tests are added (and RC4-MD5's regenerated) for each of the new AEADs. The
cipher tests are all moved into crypto/cipher/test because there's now a lot of
them and they clutter the directory listing.
In ssl/, the stateful AEAD logic is also modified to account for stateful AEADs
with a fixed IV component, and for AEADs which use a random nonce (for the
explicit-IV CBC mode ciphers).
The new implementation fixes a bug/quirk in stateless CBC mode ciphers where
the fixed IV portion of the keyblock was generated regardless. This is at the
end, so it's only relevant for EAP-TLS which generates a MSK from the end of
the key block.
Change-Id: I2d8b8aa11deb43bde2fd733f4f90b5d5b8cb1334
Reviewed-on: https://boringssl-review.googlesource.com/2692
Reviewed-by: Adam Langley <agl@google.com>
It's not worth saving the extra mallocs. This is preparation for moving SSLv3
to stateful AEADs; it'll share code TLS's SSL3_ENC_METHOD, but
tls1_generate_key_block is different, so that'll be pulled out into its own
hook.
Change-Id: I3f2136600758465c66ce23736041bb47f74efa6d
Reviewed-on: https://boringssl-review.googlesource.com/2690
Reviewed-by: Adam Langley <agl@google.com>
More modern versions of GCC (at least with aarch64) are warning about an
unused value in these locations. It's incorrect, but I guess that the
macro is confusing it.
Using a (void) tag is a little ugly but solves the problem.
Change-Id: If6ba5083ab6e501c81e7743ae1ed99a89565e57c
Reviewed-on: https://boringssl-review.googlesource.com/2810
Reviewed-by: Adam Langley <agl@google.com>
The minimum MTU (not consistently enforced) is just under 256, so it's
difficult to test everything, but this is a basic test. (E.g., without renego,
the only handshake message with encryption is Finished which fits in the MTU.)
It tests the server side because the Certificate message is large enough to
require fragmentation.
Change-Id: Ida11f1057cebae2b800ad13696f98bb3a7fbbc5e
Reviewed-on: https://boringssl-review.googlesource.com/2824
Reviewed-by: Adam Langley <agl@google.com>
This should have been removed with its dtls1_clear cousin in
8c88153465.
Change-Id: Ibf4ee67348f603285b26766568cbb92183b62cee
Reviewed-on: https://boringssl-review.googlesource.com/2823
Reviewed-by: Adam Langley <agl@google.com>
State on s3 gets freed in both ssl3_clear and ssl3_free. Considate to just
ssl3_free. This replaces the (SSL,ssl,ssl3)_clear calls in (SSL,ssl,ssl3)_new
with the state that was initialized. This results in a little code duplication
between SSL_new and SSL_clear because state is on the wrong object. I've just
left TODOs for now; some of it will need disentangling.
We're far from it, but going forward, separate state between s and s->s3 as:
- s contains configuration state, DTLS or TLS. It is initialized from SSL_CTX,
configurable directly afterwards, and preserved across SSL_clear calls.
(Including when it's implicitly set as part of a handshake callback.)
- Connection state hangs off s->s3 (TLS) and s->d1 (DTLS). It is reset across
SSL_clear. This should happen naturally out of a ssl_free/ssl_new pair.
The goal is to avoid needing separate initialize and reset code for anything;
the point any particular state is reset is the point its owning context is
destroyed and recreated.
Change-Id: I5d779010778109f8c339c07433a0777feaf94d1f
Reviewed-on: https://boringssl-review.googlesource.com/2822
Reviewed-by: Adam Langley <agl@google.com>
Configuration data inherited from the ctx happens in SSL_new. (This also gets
in the way of using ssl3_free/ssl3_new to implement SSL_clear.)
Change-Id: I2773af91abf4e1edc0c1a324bc1e94088d7c2274
Reviewed-on: https://boringssl-review.googlesource.com/2821
Reviewed-by: Adam Langley <agl@google.com>
A memory leak can occur in dtls1_buffer_record if either of the calls to
ssl3_setup_buffers or pqueue_insert fail. The former will fail if there
is a malloc failure, whilst the latter will fail if attempting to add a
duplicate record to the queue. This should never happen because
duplicate records should be detected and dropped before any attempt to
add them to the queue. Unfortunately records that arrive that are for
the next epoch are not being recorded correctly, and therefore replays
are not being detected. Additionally, these "should not happen" failures
that can occur in dtls1_buffer_record are not being treated as fatal and
therefore an attacker could exploit this by sending repeated replay
records for the next epoch, eventually causing a DoS through memory
exhaustion.
Thanks to Chris Mueller for reporting this issue and providing initial
analysis and a patch. Further analysis and the final patch was performed
by Matt Caswell from the OpenSSL development team.
CVE-2015-0206
(Imported from upstream's 7c6a3cf2375f5881ef3f3a58ac0fbd0b4663abd1).
Change-Id: I765fe61c75bc295bcc4ab356b8a5ce88c8964764
Reviewed-on: https://boringssl-review.googlesource.com/2782
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Add a dedicated error code to the queue for a handshake_failure alert in
response to ClientHello. This matches NSS's client behavior and gives a better
error on a (probable) failure to negotiate initial parameters.
BUG=https://crbug.com/446505
Change-Id: I34368712085a6cbf0031902daf2c00393783d96d
Reviewed-on: https://boringssl-review.googlesource.com/2751
Reviewed-by: Adam Langley <agl@google.com>
The |skip_message| variable was overly complex and, since we have at
least 32-bit ints, we know that a 24-bit value doesn't overflow an int.
Change-Id: I5c16fa979e1716f39cc47882c033bcf5bce3284c
Reviewed-on: https://boringssl-review.googlesource.com/2610
Reviewed-by: Adam Langley <agl@google.com>
RAND_pseudo_bytes just calls RAND_bytes now and only returns 0 or 1. Switch all
callers within the library call the new one and use the simpler failure check.
This fixes a few error checks that no longer work (< 0) and some missing ones.
Change-Id: Id51c79deec80075949f73fa1fbd7b76aac5570c6
Reviewed-on: https://boringssl-review.googlesource.com/2621
Reviewed-by: Adam Langley <agl@google.com>
No current use of ssl_cert_type passes a NULL EVP_PKEY, so it can be simplified
a little.
Change-Id: I2052cc3b6069cd30e4685ba8a6d0014016a4d712
Reviewed-on: https://boringssl-review.googlesource.com/2620
Reviewed-by: Adam Langley <agl@google.com>
Currently we don't express an opinion. Most sites aren't likely to have a
choice since it depends on what certificates they have available. But we may as
well order them.
Change-Id: I4fffa5e392f42e19823cb8faa2e9e15a6bb91086
Reviewed-on: https://boringssl-review.googlesource.com/2607
Reviewed-by: Adam Langley <agl@google.com>
Turns out the EVP_CIPH_FLAG_CUSTOM_CIPHER ciphers (i.e. legacy EVP_CIPHER
AES-GCM) have a completely different return value setup than the normal ones
which are the standard one/zero. (Except that they never return zero; see
TODO.)
Fix checks in ssl/ and remove remnants of EVP_CIPH_FLAG_CUSTOM_CIPHER in ssl/
as we're using EVP_AEAD now.
See CHANGES entry added in upstream's 3da0ca796cae6625bd26418afe0a1dc47bf5a77f.
Change-Id: Ia4d0ff59b03c35fab3a08141c60b9534cb7172e2
Reviewed-on: https://boringssl-review.googlesource.com/2606
Reviewed-by: Adam Langley <agl@google.com>
Those version checks are if renego tried to change the version, but at that
point we're out of the initial null cipher and should leave the version fixed.
(On the server end, the code in question was dead after the version negotiation
rewrite anyway.)
Change-Id: I3242ba11bc9981ccf7fdb867176d59846cc49dd9
Reviewed-on: https://boringssl-review.googlesource.com/2605
Reviewed-by: Adam Langley <agl@google.com>
This avoids needing a should_add_to_finished_hash boolean on do_write. The
logic in do_write was a little awkward because do_write would be called
multiple times if the write took several iterations. This also gets complex if
DTLS retransmits are involved. (At a glance, it's not obvious the
BIO_CTRL_DGRAM_MTU_EXCEEDED case actually works.)
Doing it as the handshake message is being prepared avoids this concern. It
also gives a natural point for the extended master secret logic which needs to
do work after the finished hash has been sampled.
As a bonus, we can remove s->d1->retransmitting which was only used to deal
with this issue.
Change-Id: Ifedf23ee4a6c5e08f960d296a6eb1f337a16dc7a
Reviewed-on: https://boringssl-review.googlesource.com/2604
Reviewed-by: Adam Langley <agl@google.com>
That comment is wrong as of TLS 1.2.
Change-Id: I900d5efc09d7468f2601d85f867833e43d046f6a
Reviewed-on: https://boringssl-review.googlesource.com/2603
Reviewed-by: Adam Langley <agl@google.com>
(Or should we just drop this? It only matters for servers trying to use client
auth.)
Change-Id: I50b6999375dc8f9246bf617f17929ae304503c57
Reviewed-on: https://boringssl-review.googlesource.com/2602
Reviewed-by: Adam Langley <agl@google.com>
Some of the messages did the computation manually which would bite us if we
tried to transplant them between DTLS and TLS. More importantly, it precludes
moving the handshake hash computation from ssl_do_write to
ssl_set_handshake_header.
Change-Id: I9d400deb0720e62cb1ab905242eb0679ad650a46
Reviewed-on: https://boringssl-review.googlesource.com/2600
Reviewed-by: Adam Langley <agl@google.com>
The frag_off/frag_len parameters are always zero, and the return value is never
used.
Change-Id: If7487b23c55f2a996e411b25b76a8e1651f25d8b
Reviewed-on: https://boringssl-review.googlesource.com/2601
Reviewed-by: Adam Langley <agl@google.com>
This change has no semantic effect (I hope!). It's just a reformatting
of a few files in ssl/. This is just a start – the other files in ssl/
should follow in the coming days.
Change-Id: I5eb3f4b18d0d46349d0f94d3fe5ab2003db5364e
David is heading out so I didn't want to block the previous batch of
changes for weeks. Thus I landed them as-is and this change tweaks a
couple of things that would normally have been addressed in code-review.
Change-Id: I2579dbc43d93fea34a52b4041f5511d70217aaf7
Ensure that both the client and the server emit a protocol_version alert
(except in SSLv3 where it doesn't exist) with a record-layer version which the
peer will recognize.
Change-Id: I31650a64fe9b027ff3d51e303711910a00b43d6f
This makes SSLv23_method go through DTLS_ANY_VERSION's version negotiation
logic. This allows us to get rid of duplicate ClientHello logic. For
compatibility, SSL_METHOD is now split into SSL_PROTOCOL_METHOD and a version.
The legacy version-locked methods set min_version and max_version based this
version field to emulate the original semantics.
As a bonus, we can now handle fragmented ClientHello versions now.
Because SSLv23_method is a silly name, deprecate that too and introduce
TLS_method.
Change-Id: I8b3df2b427ae34c44ecf972f466ad64dc3dbb171
Tested manually by replacing SSLv23_method() with TLSv1_2_method() in
bssl_shim. This is a large chunk of code which is not run in SSLv23_method(),
but it will be run after unification. It's split out separately to ease review.
Change-Id: I6bd241daca17aa0f9b3e36e51864a29755a41097
Match the DTLS code. Rather than sniffing the handshake state, use the
have_version bit.
Change-Id: I40e92f187647417c34b4cfdc3ad258f5562e781b
Reviewed-on: https://boringssl-review.googlesource.com/2588
Reviewed-by: Adam Langley <agl@google.com>
These tests use both APIs. This also modifies the inline version negotiation's
error codes (currently only used for DTLS) to align with SSLv23's error codes.
Note: the peer should send a protocol_version alert which is currently untested
because it's broken.
Upstream would send such an alert if TLS 1.0 was supported but not otherwise,
which is somewhat bizarre. We've actually regressed and never send the alert in
SSLv23. When version negotiation is unified, we'll get the alerts back.
Change-Id: I4c77bcef3a3cd54a039a642f189785cd34387410
Reviewed-on: https://boringssl-review.googlesource.com/2584
Reviewed-by: Adam Langley <agl@google.com>
Amend the version negotiation tests to test this new spelling of max_version.
min_version will be tested in a follow-up.
Change-Id: Ic4bfcd43bc4e5f951140966f64bb5fd3e2472b01
Reviewed-on: https://boringssl-review.googlesource.com/2583
Reviewed-by: Adam Langley <agl@google.com>
DTLS_method() can now negotiate versions without switching methods.
Change-Id: I0655b3221b6e7e4b3ed4acc45f1f41c594447021
Reviewed-on: https://boringssl-review.googlesource.com/2582
Reviewed-by: Adam Langley <agl@google.com>
SSL3_ENC_METHOD will remain version-specific while SSL_METHOD will become
protocol-specific. This finally removes all the version-specific portions of
SSL_METHOD but the version tag itself.
(SSL3_ENC_METHOD's version-specific bits themselves can probably be handled by
tracking a canonicalized protocol version. It would simplify version
comparisons anyway. The one catch is SSLv3 has a very different table. But
that's a cleanup for future. Then again, perhaps a version-specific method
table swap somewhere will be useful later for TLS 1.3.)
Much of this commit was generated with sed invocation:
s/method->ssl3_enc/enc_method/g
Change-Id: I2b192507876aadd4f9310240687e562e56e6c0b1
Reviewed-on: https://boringssl-review.googlesource.com/2581
Reviewed-by: Adam Langley <agl@google.com>
Now SSLv23 and DTLS_ANY_VERSION share version-related helper functions.
ssl3_get_method is temporary until the method switch is no longer necessary.
Put them all together so there's one place to refactor them when we add a new
version or implement min_version/max_version controls.
Change-Id: Ic28a145cad22db08a87fdb854480b22886c451c6
Reviewed-on: https://boringssl-review.googlesource.com/2580
Reviewed-by: Adam Langley <agl@google.com>
Missed this one. It requires that we be able to change an SSL_METHOD after the
after, which complicates compiling the version locking into min_version /
max_version configurations.
Change-Id: I24ba54b7939360bbfafe3feb355a65840bda7611
Reviewed-on: https://boringssl-review.googlesource.com/2579
Reviewed-by: Adam Langley <agl@google.com>
SSL_ST_BEFORE isn't a possible state anymore. It seems this state meant the
side wasn't known, back in the early SSLeay days. Now upstream guesses
(sometimes incorrectly with generic methods), and we don't initialize until
later. SSL_shutdown also doesn't bother to call ssl3_shutdown at all if the
side isn't initialized and SSL_ST_BEFORE isn't the uninitialized state, which
seems a much more sensible arrangement.
Likewise, because bare SSL_ST_BEFOREs no longer exist, SSL_in_init implies
SSL_in_before and there is no need to check both.
Change-Id: Ie680838b2f860b895073dabb4d759996e21c2824
Reviewed-on: https://boringssl-review.googlesource.com/2564
Reviewed-by: Adam Langley <agl@google.com>
These may as well be replaced with assertions. Get them out of the way of the
initialization.
Change-Id: Ie4ab8bdc018e4a1def7d3f6b3b172a77896bfc0a
Reviewed-on: https://boringssl-review.googlesource.com/2563
Reviewed-by: Adam Langley <agl@google.com>
They're always known now. Also fix the SSLv23_{client,server}_method
definitions still had their own macro invocations.
Change-Id: Ia13f29a27f2331d25a4051e83f2d5abc62fab981
Reviewed-on: https://boringssl-review.googlesource.com/2562
Reviewed-by: Adam Langley <agl@google.com>
There's an undefined one not used anywhere. The others ought to be const. Also
move the forward declaration to ssl.h so we don't have to use the struct name.
Change-Id: I76684cf65255535c677ec19154cac74317c289ba
Reviewed-on: https://boringssl-review.googlesource.com/2561
Reviewed-by: Adam Langley <agl@google.com>
else block got lost in a rewrite of this code.
Change-Id: I51f1655474ec8bbd4eccb4297124e8584329444e
Reviewed-on: https://boringssl-review.googlesource.com/2560
Reviewed-by: Adam Langley <agl@google.com>
The client_version needs to be preserved, both for the RSA key exchange and
(when this codepath is used for TLS) for the SChannel renego workaround. Fix
the tests to enforce this so the cipher suite version tests catch this.
Change-Id: I0c42dc3ec4830f3724026b400e5066e7a7f1ee97
Reviewed-on: https://boringssl-review.googlesource.com/2551
Reviewed-by: Adam Langley <agl@google.com>
There's no need to make that conditional.
Change-Id: Idac1aba42b22e3fe8e7731ae4ecb5ebc4183336c
Reviewed-on: https://boringssl-review.googlesource.com/2550
Reviewed-by: Adam Langley <agl@google.com>
Comparing data is a much easier idiom than CBS_skip + a CBS_len check.
Change-Id: I3efe925734c76f3494cad682445291ae83750a7e
Reviewed-on: https://boringssl-review.googlesource.com/2500
Reviewed-by: Adam Langley <agl@google.com>
The record-layer version of the ServerHello should match the final version. The
record-layer version of the ClientHello should be the advertised version, but
clamped at TLS 1.0. This is to ensure future rewrites do not regress this.
Change-Id: I96f1f0674944997ff38b562453a322ce61652635
Reviewed-on: https://boringssl-review.googlesource.com/2540
Reviewed-by: Adam Langley <agl@google.com>
Bruce Dawson pointed out that the shadowing of |ret| in |s3_srvr.c|
looked dodgy. It was actually deliberate (we don't want to reset the
default value of the function's |ret| variable with a successful return
from the callback) but it does look dodgy.
This change adds -Wshadow to ban variable shadowing and fixes all
current instances.
Change-Id: I1268f88b9f26245c7d16d6ead5bb9014ea471c01
Reviewed-on: https://boringssl-review.googlesource.com/2520
Reviewed-by: Adam Langley <agl@google.com>
(Imported from upstream's 7a04b854d655785798d471df25ffd5036f3cc46b.)
This does not affect BoringSSL as ssl3_get_client_hello advances to yet another
state immediately after reading the message. But the state advance is correct.
It matches the normal exit for this function.
Change-Id: I8a664f2ad5f80beacbaf3e17a7786a5c9e8ef30e
Reviewed-on: https://boringssl-review.googlesource.com/2480
Reviewed-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-by: Adam Langley <agl@google.com>
(Imported from upstream's 4b87706d20f0a2fdf2e8f1b90256e141c487ef47 and
eceef8fb865eb5de329b27ea472d4fdea4c290fe.)
Dead code.
Change-Id: I58120c3a9c42cb9db27f404774778222c3bb642a
Reviewed-on: https://boringssl-review.googlesource.com/2479
Reviewed-by: Adam Langley <agl@google.com>
PR#1767
(Imported from upstream's fe78f08d1541211566a5656395186bfbdc61b6f8)
Not sure this is reachable (upstream's PR references custom engines), but
better be tidy. Note this is slightly different from upstream's: EVP_Cipher is
documented to return -1 on failure, not 0.
Change-Id: I836f12b73c6912a8ae8cbd37cfd3d33466acbc9e
Reviewed-on: https://boringssl-review.googlesource.com/2478
Reviewed-by: Adam Langley <agl@google.com>
PR#3613
(Imported from upstream's fc3968a25ce0c16cab8730ec0d68a59856158029)
We don't care about GOST, but removing redundant code is reasonable. Also
switch that CRYPTO_add to EVP_PKEY_dup. Missed a spot.
Change-Id: I768ec546d987fb3d8bc3decf7ebf1a5590fbb6c2
Reviewed-on: https://boringssl-review.googlesource.com/2477
Reviewed-by: Adam Langley <agl@google.com>
Some code predated the RFCs themselves, but the RFCs now exist. Also remove
now obsolete comments and some unused #defines.
See upstream's cffeacd91e70712c99c431bf32a655fa1b561482. (Though this predates
it; I just remembered I never uploaded it.)
Change-Id: I5e56f0ab6b7f558820f72e84dfdbc71a8c23cb91
Reviewed-on: https://boringssl-review.googlesource.com/2475
Reviewed-by: Adam Langley <agl@google.com>
The ClientHello record is padded to 1024 bytes when
fastradio_padding is enabled. As a result, the 3G cellular radio
is fast forwarded to DCH (high data rate) state. This mechanism
leads to a substantial redunction in terms of TLS handshake
latency, and benefits mobile apps that are running on top of TLS.
Change-Id: I3d55197b6d601761c94c0f22871774b5a3dad614
MSVC doesn't like it when you compare the two.
Change-Id: I03c5ff2e2668ac2e536de8278e3a7c98a3dfd117
Reviewed-on: https://boringssl-review.googlesource.com/2460
Reviewed-by: Adam Langley <agl@google.com>
It just inserts extra flushes everywhere and isn't used.
Change-Id: I082e4bada405611f4986ba852dd5575265854036
Reviewed-on: https://boringssl-review.googlesource.com/2456
Reviewed-by: Adam Langley <agl@google.com>
Use it in ssl3_cert_verify_hash so signing a pre-TLS-1.2 handshake hash can go
through RSA_sign and be intercepted via RSA_METHOD appropriately. This avoids
Windows needing to intercept sign_raw. (CAPI keys cannot provide sign_raw,
unless the input size happens to be that of NID_md5_sha1.)
Also use it in processing ServerKeyExchange to avoid special-casing RSA.
BUG=crbug.com/437023
Change-Id: Ia07433f468b75fdf7bfc8fa90c9751639b2478e6
Reviewed-on: https://boringssl-review.googlesource.com/2420
Reviewed-by: David Benjamin <davidben@google.com>
Don't link with dl, except on Linux where we have malloc tests.
Change-Id: I7b23acc854172e64628a55acecfaa9a661f74f77
Reviewed-on: https://boringssl-review.googlesource.com/2453
Reviewed-by: Adam Langley <agl@google.com>
The comment has it right, but the rewritten code was wrong.
Change-Id: I450193c39fb62eae32aae090a3834dd83db53421
Reviewed-on: https://boringssl-review.googlesource.com/2444
Reviewed-by: Adam Langley <agl@google.com>
Replace the comment with a clearer one and reimplement it much more tidily. The
mask thing was more complicated than was needed.
This slightly changes behavior on the DTLS_ANY_VERSION side in that, if only
one method is enabled, we no longer short-circuit to the version-locked method
early. This "optimization" seems unnecessary.
Change-Id: I571c8b60ed16bd4357c67d65df0dd1ef9cc5eb57
Reviewed-on: https://boringssl-review.googlesource.com/2451
Reviewed-by: Adam Langley <agl@google.com>
It should be set correctly prior to entering the handshake. Don't mask bugs by
assigning it.
Change-Id: Ib9bca8fad68916b3b242aad8819e3760e59e777a
Reviewed-on: https://boringssl-review.googlesource.com/2443
Reviewed-by: Adam Langley <agl@google.com>
first_packet is a temporary connection-global flag set for the duration of some
call and then queried from other code. This kind of logic is too difficult to
reason through. It also incorrectly treats renegotiate ClientHellos as
pre-version-negotiation records. This eliminates the need to query
enc_write_ctx (which wasn't EVP_AEAD-aware anyway).
Instead, take a leaf from Go TLS's book and add a have_version bit. This is
placed on s->s3 as it is connection state; s->s3 automatically gets reset on
SSL_clear while s doesn't.
This new flag will also be used to determine whether to do the V2ClientHello
sniff when the version-locked methods merge into SSLv23_method. It will also
replace needing to condition s->method against a dummy DTLS_ANY_VERSION value
to determine whether DTLS version negotiation has happened yet.
Change-Id: I5c8bc6258b182ba4ab175a48a84eab6d3a001333
Reviewed-on: https://boringssl-review.googlesource.com/2442
Reviewed-by: Adam Langley <agl@google.com>
Supporting both schemes seems pointless. Now that s->server and s->state are
set appropriately late and get_ssl_method is gone, the only difference is that
the client/server ones have non-functional ssl_accept or ssl_connect hooks. We
can't lose the generic ones, so let's unify on that.
Note: this means a static linker will no longer drop the client or server
handshake code if unused by a consumer linking statically. However, Chromium
needs the server half anyway for DTLS and WebRTC, so that's probably a lost
cause. Android also exposes server APIs.
Change-Id: I290f5fb4ed558f59fadb5d1f84e9d9c405004c23
Reviewed-on: https://boringssl-review.googlesource.com/2440
Reviewed-by: Adam Langley <agl@google.com>
If SSL_clear is called before SSL_set_{connect,accept}_state (as SSL_new does
internally), s->state will get set prematurely. Likewise, s->server is set
based on the method's ssl_accept hook, but client SSL's may be initialized from
a generic SSL_METHOD too.
Since we can't easily get rid of the generic SSL_METHODs, defer s->state and
s->server initialization until the side is known.
Change-Id: I0972e17083df22a3c09f6f087011b54c699a22e7
Reviewed-on: https://boringssl-review.googlesource.com/2439
Reviewed-by: Adam Langley <agl@google.com>
It's unused. Also per the previous commit message, it historically had a bug
anyway.
Change-Id: I5868641e7938ddebbc0ffd72d218c81cd17c7739
Reviewed-on: https://boringssl-review.googlesource.com/2437
Reviewed-by: Adam Langley <agl@google.com>
If the state is SSL_ST_BEFORE, the SSL* was just initialized. Otherwise, we
don't want to call SSL_clear. The one case I found where we do is if a
handshake message is received and someone sets
SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS. This is apparently intended for external
consumers to set, but I see no code in Google that does.
Which is fortunate because it'll trigger SSL_clear. This retains the BIOs but
drops all connection state, including the record. If the client just initiated
renego, that's the ClientHello that's lost. The connection then hangs: the now
reset SSL* wants a ClientHello (under the null cipher because that too's been
dropped) while the peer wants an encrypted ServerHello.
Change-Id: Iddb3e0bb86d39d98155b060f9273a0856f2d1409
Reviewed-on: https://boringssl-review.googlesource.com/2436
Reviewed-by: Adam Langley <agl@google.com>
SSL_clear sets s->state and dtls1_clear sets cookie_len on the server. Setting
cookie_len on the server seems to serve no purpose but to let the callback know
how large the buffer is. This can be done just before calling the callback.
It also avoids a bug where the cookie check can be bypassed, should the server
not specify an app_verify_cookie_cb, by supplying a cookie of all zeros of the
maximum size. (Zero is fine because an empty cookie is rejected.)
The goal here is to avoid needing the SSL_clear calls in the handshake
functions. They are currently needed to fix the cookie_len setting when using
the generic method. (They get set wrong and then flipped back.)
Change-Id: I5095891bc0f7df62d83a9c84312fcf0b84826faa
Reviewed-on: https://boringssl-review.googlesource.com/2435
Reviewed-by: Adam Langley <agl@google.com>
s->server's value isn't final until SSL_connect or SSL_accept is called when
using the generic SSLv23_method or DTLS_method rather than the version-locked
ones. This makes the tests pass if bssl_shim uses those methods.
It would be nicer if the generic methods were gone and an SSL* could know from
creation which half it's destined for. Unfortunately, there's a lot of code
that uses those generic methods, so we probably can't get rid of them. If they
have to stay, it seems better to standardize on only having those, rather than
support both, even if standardizing on the side-specific ones would be
preferable.
Change-Id: I40e65a8842cd6706da92263a263f664336a7f3b3
Reviewed-on: https://boringssl-review.googlesource.com/2434
Reviewed-by: Adam Langley <agl@google.com>
SSL_ST_BEFORE is never standalone. As of upstream's
413c4f45ed0508d2242638696b7665f499d68265, SSL_ST_BEFORE is only ever set paired
with SSL_ST_ACCEPT or SSL_ST_CONNECT.
Conversely, SSL_ST_OK is never paired with SSL_ST_ACCEPT or SSL_ST_CONNECT. As
far as I can tell, this combination has never been possible.
Change-Id: Ifbc8f147be821026cf59f3d5038f0dbad3b0a1d2
Reviewed-on: https://boringssl-review.googlesource.com/2433
Reviewed-by: Adam Langley <agl@google.com>
It should already be assigned, as of upstream's
b31b04d951e9b65bde29657e1ae057b76f0f0a73. I believe these assignments are part
of the reason it used to appear to work. Replace them with assertions. So the
assertions are actually valid, check in SSL_connect / SSL_accept that they are
never called if the socket had been placed in the opposite state. (Or we'd be
in another place where it would have appeared to work with the handshake
functions fixing things afterwards.)
Now the only places handshake_func is set are in SSL_set_{connect,accept}_state
and the method switches.
Change-Id: Ib249212bf4aa889b94c35965a62ca06bdbcf52e1
Reviewed-on: https://boringssl-review.googlesource.com/2432
Reviewed-by: Adam Langley <agl@google.com>
This comment is no longer true. It dates from OpenSSL's initial commit, but
stopped being true in upstream's 413c4f45ed0508d2242638696b7665f499d68265.
Change-Id: I47377d992a00e3d57c795fef893e19e109dd6945
Reviewed-on: https://boringssl-review.googlesource.com/2431
Reviewed-by: Adam Langley <agl@google.com>
We intend to deprecate the version-locked methods and unify them. Don't expose
that there's a method swap. (The existing version-locked methods will merely be
a shorthand for configuring minimum/maximum versions.)
There is one consumer of SSL_get_ssl_method in internal code, but it's just
some logging in test-only code. All it's doing is getting the version as a
string which should be SSL_get_version instead.
While here, also remove dead ssl_bad_method function. Also the bogus
ssl_crock_st forward-declaration. The forward declaration in base.h should be
perfectly sufficient.
Change-Id: I50480808f51022e05b078a285f58ec85d5ad7c8e
Reviewed-on: https://boringssl-review.googlesource.com/2408
Reviewed-by: Adam Langley <agl@google.com>
When not offering to resume a session, the client populates s->session with a
fresh SSL_SESSION before the ServerHello is processed and, in DTLS_ANY_VERSION,
before the version is even determined. Don't create a fresh SSL_SESSION until
we know we are doing a full handshake.
This brings ssl3_send_client_hello closer to ssl23_client_hello in behavior. It
also fixes ssl_version in the client in DTLS_ANY_VERSION.
SSLv23_client_method is largely unchanged. If no session is offered, s->session
continues to be NULL until the ServerHello is received. The one difference is
that s->session isn't populated until the entire ServerHello is received,
rather than just the first half, in the case of a fragmented ServerHello. Apart
from info_callback, no external hooks get called between those points, so this
shouldn't expose new missing NULL checks.
The other client methods change significantly to match SSLv23_client_method's
behavior. For TLS, any exposed missing NULL checks are also in
SSLv23_client_method (and version-specific methods are already weird), so that
should be safe. For DTLS, I've verified that accesses in d1_*.c either handle
NULL or are after the ServerHello.
Change-Id: Idcae6bd242480e28a57dbba76ce67f1ac1ae1d1d
Reviewed-on: https://boringssl-review.googlesource.com/2404
Reviewed-by: Adam Langley <agl@google.com>
This fixes bugs that kept the tests from working:
- Resolve DTLS version and cookie before the session.
- In DTLS_ANY_VERSION, ServerHello should be read with first_packet = 1. This
is a regression from f2fedefdca. We'll want to
do the same for TLS, but first let's change this to a boolean has_version in a
follow-up.
Things not yet fixed:
- DTLS code is not EVP_AEAD-aware. Those ciphers are disabled for now.
- On the client, DTLS_ANY_VERSION creates SSL_SESSIONs with the wrong
ssl_version. The tests pass because we no longer enforce the match as of
e37216f56009fbf48c3a1e733b7a546ca6dfc2af. (In fact, we've gone from the server
ignoring ssl_version and client enforcing to the client mostly ignoring
ssl_version and the server enforcing.)
- ssl3_send_client_hello's ssl_version check checks for equality against
s->version rather than >.
Change-Id: I5a0dde221b2009413df9b9443882b9bf3b29519c
Reviewed-on: https://boringssl-review.googlesource.com/2403
Reviewed-by: Adam Langley <agl@google.com>
This is a bit of cleanup that probably should have been done at the same time
as 30ddb434bf.
For now, version negotiation is implemented with a method swap. It also
performs this swap on SSL_set_session, but this was neutered in
30ddb434bf. Rather than hackishly neuter it,
remove it outright. In addition, remove SSL_set_ssl_method. Now all method
swaps are internal: SSLv23_method switch to a version-specific method and
SSL_clear undoing it.
Note that this does change behavior: if an SSL* is created with one
version-specific method and we SSL_set_session to a session from a /different/
version, we would switch to the /other/ version-specific method. This is
extremely confusing, so it's unlikely anyone was actually expecting it.
Version-specific methods in general don't work well.
Change-Id: I72a5c1f321ca9aeb1b52ebe0317072950ba25092
Reviewed-on: https://boringssl-review.googlesource.com/2390
Reviewed-by: Adam Langley <agl@google.com>
We forgot to add those when we implemented the features. (Also relevant because
they will provide test coverage later for configuring features when using the
generic method tables rather than *_client_method.)
Change-Id: Ie08b27de893095e01a05a7084775676616459807
Reviewed-on: https://boringssl-review.googlesource.com/2410
Reviewed-by: Adam Langley <agl@google.com>
Although the comment suggests this was added with an s->session check to
account for SSL_set_session switching methods (which we will remove in the next
commit) and to account for SSLv23_method switching methods (which we hope to
remove after a long tower of cleanup), the current codepath never runs and
can't work:
If it is called prior to handshaking or setting a session, no method switch has
happened so that codepath is dead. If it is called after setting a session, the
s->session check will keep it from running. If it is called after a handshake,
we will have established a session so that check will again keep it from
running. (Finally, if it is called during the handshake, the in_handshake check
will stop; that there is an SSL_clear call in the handshake state machine at
all is a bug that will be addressed once more things are disentangled. See
upstream's 979689aa5cfa100ccbc1f25064e9398be4b7b05c.)
Were that code to ever run, the SSL* would be in an inconsistent state. It
switches the method, but not the handshake_func. The handshake_func isn't
switched to NULL, so that will keep the SSL_connect and SSL_accept code from fixing it.
It seems the intent was that the caller would always call
SSL_set_{connect,accept}_state to fix this. But as of upstream's
b31b04d951e9b65bde29657e1ae057b76f0f0a73, this is not necessary and indeed
isn't called by a lot of consumer code.
Change-Id: I710652b1d565b77bc26f913c2066ce749a9025c9
Reviewed-on: https://boringssl-review.googlesource.com/2430
Reviewed-by: Adam Langley <agl@google.com>
The data is owned by the SSL_SESSION, so the caller should not modify it. This
will require changes in Chromium, but they should be trivial.
Change-Id: I314718530c7d810f7c7b8852339b782b4c2dace1
Reviewed-on: https://boringssl-review.googlesource.com/2409
Reviewed-by: Adam Langley <agl@google.com>
This is only used for EAP-FAST which we apparently don't need to support.
Remove it outright. We broke it in 9eaeef81fa by
failing to account for session misses.
If this changes and we need it later, we can resurrect it. Preferably
implemented differently: the current implementation is bolted badly onto the
handshake. Ideally use the supplied callbacks to fabricate an appropriate
SSL_SESSION and resume that with as much of the normal session ticket flow as
possible.
The one difference is that EAP-FAST seems to require the probing mechanism for
session tickets rather than the sane session ID echoing version. We can
reimplement that by asking the record layer to probe ahead for one byte.
Change-Id: I38304953cc36b2020611556a91e8ac091691edac
Reviewed-on: https://boringssl-review.googlesource.com/2360
Reviewed-by: Adam Langley <agl@google.com>
This implements session IDs in client and server in runner.go.
Change-Id: I26655f996b7b44c7eb56340ef6a415d3f2ac3503
Reviewed-on: https://boringssl-review.googlesource.com/2350
Reviewed-by: Adam Langley <agl@google.com>
The ex_data index may fail to be allocated. Also don't leave a dangling pointer
in handshake_dgst if EVP_DigestInit_ex fails and check a few more init function
failures.
Change-Id: I2e99a89b2171c9d73ccc925a2f35651af34ac5fb
Reviewed-on: https://boringssl-review.googlesource.com/2342
Reviewed-by: Adam Langley <agl@google.com>
This commit fixes a number of crashes caused by malloc failures. They
were found using the -malloc-test=0 option to runner.go which runs tests
many times, causing a different allocation call to fail in each case.
(This test only works on Linux and only looks for crashes caused by
allocation failures, not memory leaks or other errors.)
This is not the complete set of crashes! More can be found by collecting
core dumps from running with -malloc-test=0.
Change-Id: Ia61d19f51e373bccb7bc604642c51e043a74bd83
Reviewed-on: https://boringssl-review.googlesource.com/2320
Reviewed-by: Adam Langley <agl@google.com>
tls1_process_sigalgs now only determines the intersection between the peer
algorithms and those configured locally. That list is queried later to
determine the hash algorithm to use when signing CertificateVerify or
ServerKeyExchange.
This is needed to support client auth on Windows where smartcards or CAPI may
not support all hash functions.
As a bonus, this does away with more connection-global state. This avoids the
current situation where digests are chosen before keys are known (for
CertificateVerify) or for slots that don't exist.
Change-Id: Iec3619a103d691291d8ebe08ef77d574f2faf0e8
Reviewed-on: https://boringssl-review.googlesource.com/2280
Reviewed-by: Adam Langley <agl@google.com>
CERT_PKEY_SIGN isn't meaningful since, without strict mode, we always fall back
to SHA-1 anyway. So the digest is never NULL when CERT_PKEY_SIGN is computed.
The entire valid_flags is now back to it's pre-1.0.2 check of seeing if the
certificate and key are configured.
This finally removes the sensitivity between valid_flags and selecting the
digest, so we can defer choosing the digest all we like.
Change-Id: I9f9952498f512d7f0cc799497f7c5b52145a48af
Reviewed-on: https://boringssl-review.googlesource.com/2288
Reviewed-by: Adam Langley <agl@google.com>
It doesn't depend on the cipher now that export ciphers are gone. It need only
be called once. Also remove the valid bit; nothing ever reads it. Its output is
also only used within a function, so make mask_k and mask_a local variables.
So all the configuration-based checks are in one place, change the input
parameter from CERT to SSL and move the PSK and ECDHE checks to the mask
computation. This avoids having to evaluate the temporary EC key for each
cipher.
The remaining uses are on the client which uses them differently (disabled
features rather than enabled ones). Those too may as well be local variables,
so leave a TODO.
Change-Id: Ibcb574341795d4016ea749f0290a793eed798874
Reviewed-on: https://boringssl-review.googlesource.com/2287
Reviewed-by: Adam Langley <agl@google.com>
Many are now unused. Only two are currently considered in cipher selection:
CERT_PKEY_VALID and CERT_PKEY_SIGN. (As per previous commits, this is either
bizarre due to limited slots or redundant with ssl_early_callback_ctx. We can
probably prune this too.)
This also fixes a bug where DTLS 1.0 went through a TLS 1.2 codepath. As the
DTLS code is currently arranged, all version comparisons must be done via
macros like SSL_USE_SIGALGS. (Probably we should add functions to map from DTLS
to TLS versions and slowly move the library to using the TLS version as
in-memory representation.)
Change-Id: I89bcf5b7b9ea5cdecf54f4445156586377328fe0
Reviewed-on: https://boringssl-review.googlesource.com/2286
Reviewed-by: Adam Langley <agl@google.com>
It's new in OpenSSL 1.0.2 so it's never set by existing code. This removes gobs
and gobs of complexity from tls1_check_chain. It only checks the local
certificate, not the peer certificate. The uses appear to be:
- Sanity-check configuration. Not worth the complexity.
- Guide in selecting ciphers based on ClientHello parameters and which
certificates in the CERT_PKEY are compatible. This isn't very useful one its
own since the CERT_PKEY array only stores one slot per type (e.g. you cannot
configure RSA/SHA-1 and RSA/SHA-256).
- For the (currently removed) SSL_check_chain to return more information based
on ClientHello parameters and guide selecting a certificate. This is
potentially useful but, as noted in the commit which removed it, redundant
with ssl_early_callback_ctx.
This CL is largely mechanical removing of dead codepaths. The follow-up will
clean up the now unnecessary parts of this function.
Change-Id: I2ebfa17e4f73e59aa1ee9e4ae7f615af2c6cf590
Reviewed-on: https://boringssl-review.googlesource.com/2285
Reviewed-by: Adam Langley <agl@google.com>
Get rid of now dead codepaths.
Change-Id: I3b5d49097cba70c5698a230cc6c1d79bdd0f0880
Reviewed-on: https://boringssl-review.googlesource.com/2284
Reviewed-by: Adam Langley <agl@google.com>
Both of these are newly-exported in OpenSSL 1.0.2, so they cannot be used by
current consumers.
This was added in upstream's 18d7158809c9722f4c6d2a8af7513577274f9b56 to
support custom selection of certificates. The intent seems to be that you
listen to cert_cb and use SSL_check_chain to lean on OpenSSL to process
signature algorithms list for you.
Unfortunately, the implementation is slightly suspect: it uses the same
function as the codepath which mutates and refers to the CERT_PKEY of the
matching type. Some access was guarded by check_flags, but this is too
complex. Part of it is also because the matching digest is selected early and
we intend to connect this to EVP_PKEY_supports_digest so it is no longer a
property of just the key type.
Let's remove the hook for now, to unblock removing a lot of complexity. After
cleaning up this area, a function like this could be cleaner to support, but
we already have a version of this: select_certificate_cb and
ssl_early_callback_ctx.
Change-Id: I3add425b3996e5e32d4a88e14cc607b4fdaa5aec
Reviewed-on: https://boringssl-review.googlesource.com/2283
Reviewed-by: Adam Langley <agl@google.com>
This is maintained just to distinguish whether the digest was negotiated or we
simply fell back to assuming SHA-1 support. No code is sensitive to this flag
and it adds complexity because it is set at a different time, for now, from the
rest of valid_flags.
The flag is new in OpenSSL 1.0.2, so nothing external could be sensitive to it.
Change-Id: I9304e358d56f44d912d78beabf14316d456bf389
Reviewed-on: https://boringssl-review.googlesource.com/2282
Reviewed-by: Adam Langley <agl@google.com>
This is new in OpenSSL 1.0.2 so it isn't used anywhere. Cuts down slightly on
connection-global state associated with signature algorithm processing.
Repurposing the digest field to mean both "the digest we choose to sign with
this key" and "the digest the last signature we saw happened to use" is
confusing.
Change-Id: Iec4d5078c33e271c8c7b0ab221c356ee8480b89d
Reviewed-on: https://boringssl-review.googlesource.com/2281
Reviewed-by: Adam Langley <agl@google.com>
Just the negotiation portion as everything else is external. This feature is
used in WebRTC.
Change-Id: Iccc3983ea99e7d054b59010182f9a56a8099e116
Reviewed-on: https://boringssl-review.googlesource.com/2310
Reviewed-by: Adam Langley <agl@google.com>
Prior to this change, BoringSSL maintained a 2-byte buffer for alerts,
and would support reassembly of fragmented alerts.
NSS does not support fragmented alerts, nor would any reasonable
implementation produce them. Remove fragmented alert handling and
produce an error if a fragmented alert has ever been encountered.
Change-Id: I31530ac372e8a90b47cf89404630c1c207cfb048
Reviewed-on: https://boringssl-review.googlesource.com/2125
Reviewed-by: Adam Langley <agl@google.com>
All of NSS, upstream OpenSSL, SChannel, and Secure Transport require, on the
client, that the ServerHello version match the session's version on resumption.
OpenSSL's current behavior is incompatible with all of these. Fall back to a
full handshake on the server instead of mismatch.
Add a comment on the client for why we are, as of
30ddb434bf, not currently enforcing the same in
the client.
Change-Id: I60aec972d81368c4ec30e2fd515dabd69401d175
Reviewed-on: https://boringssl-review.googlesource.com/2244
Reviewed-by: Adam Langley <agl@google.com>
Clients all consistently reject mismatches. If a different version was
negotiated, a server should ignore the resumption. This doesn't actually affect
current tests. We really want to be making this change in BoringSSL (and then
upstream), but get the Go half into shape first.
Change-Id: Ieee7e141331d9e08573592e661889bd756dccfa9
Reviewed-on: https://boringssl-review.googlesource.com/2243
Reviewed-by: Adam Langley <agl@google.com>
The limit increased from 32 to 255 between DTLS 1.0 and DTLS 1.2.
Change-Id: I329a59f9ba2bccc70282e2b47679c57b67e5ed43
Reviewed-on: https://boringssl-review.googlesource.com/2242
Reviewed-by: Adam Langley <agl@google.com>
These'll get removed once most of renego support is gone, but this is to prove
removing the warning alert from the previous commit still prevents legacy
renegotiations.
Change-Id: I7d9d95e1d4c5d23d3b6d170938a5499a65f2d5ea
Reviewed-on: https://boringssl-review.googlesource.com/2236
Reviewed-by: Adam Langley <agl@google.com>
Ensure that the client rejects it with UNEXPECTED_MESSAGE, not by attempting to
decode it.
Change-Id: Ifc5613cf1152e0f7dcbee73e05df1ef367dfbfd5
Reviewed-on: https://boringssl-review.googlesource.com/2232
Reviewed-by: Adam Langley <agl@google.com>
There's not much point in retaining the identity hint in the SSL_SESSION. This
avoids the complexity around setting psk_identity hint on either the SSL or the
SSL_SESSION. Introduce a peer_psk_identity_hint for the client to store the one
received from the server.
This changes the semantics of SSL_get_psk_identity_hint; it now only returns
the value configured for the server. The client learns the hint through the
callback. This is compatible with the one use of this API in conscrypt (it
pulls the hint back out to pass to a callback).
Change-Id: I6d9131636b47f13ac5800b4451436a057021054a
Reviewed-on: https://boringssl-review.googlesource.com/2213
Reviewed-by: Adam Langley <agl@google.com>
This is an experimental flag that dates back to SSLeay 0.8.1b or earlier. It's
never set internally and never set in consumers.
Change-Id: I922583635c9f3d8d93f08f1707531ad22a26ae6a
Reviewed-on: https://boringssl-review.googlesource.com/2214
Reviewed-by: Adam Langley <agl@google.com>
At the record layer, DTLS maintains a window of seen sequence numbers to detect
replays. Add tests to cover that case. Test both repeated sequence numbers
within the window and sequence numbers past the window's left edge. Also test
receiving sequence numbers far past the window's right edge.
Change-Id: If6a7a24869db37fdd8fb3c4b3521b730e31f8f86
Reviewed-on: https://boringssl-review.googlesource.com/2221
Reviewed-by: Adam Langley <agl@google.com>
If psk_len were 0, it would already have been an error earlier. The PSK cipher
suites don't lose the other_secret || psk construction if the PSK happens to be
empty.
Change-Id: I1917236720d0862658562bc8f014cb827ee9aed5
Reviewed-on: https://boringssl-review.googlesource.com/2233
Reviewed-by: Adam Langley <agl@google.com>
Server-side support was removed in 77a942b7fe,
but client-side support was retained as it appeared NSS supported this.
However, this is not the case: ssl3_HandleServerKeyExchange only allows a
ServerKeyExchange message if hs.ws is in an appropriate state.
ssl3_AuthCertificate only sets it to allow ServerKeyExchange if it is a key
exchange that normally uses it or if is_limited is set. is_limited is only set
for the export cipher suites.
Thus we can safely remove this without waiting on gathering UMA data.
BUG=chromium:400587
Change-Id: I9aefb742dbb2d99c13340ab48017e1ceee04bc2f
Reviewed-on: https://boringssl-review.googlesource.com/2230
Reviewed-by: Adam Langley <agl@google.com>
This was added in upstream's 82e610e2cfbbb5fd29c09785b6909a91e606f347. The
commit message cites draft-ietf-tls-renegotiation which was on
draft-ietf-tls-renegotiation-01 at the time. The text in question (6.2 Server
Considerations) is no longer in RFC 5746. The RFC now recommends terminating
the connection which is much simpler.
It also was wrong anyway as it checked s->ctx->options instead of s->options
for SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION.
Removing that block will result in the connection being terminated in
ssl_scan_clienthello_tlsext.
Change-Id: Ie222c78babd3654c5023ad07ac0d8e0adde68698
Reviewed-on: https://boringssl-review.googlesource.com/2235
Reviewed-by: Adam Langley <agl@google.com>
Parameters like these should not change between 32-bit and 64-bit. 64 is also
the value recommended in RFC 6347, section 4.1.2.6. Document those fields while
I'm here.
Change-Id: I8481ee0765ff3d261a96a2e1a53b6ad6695b2d42
Reviewed-on: https://boringssl-review.googlesource.com/2222
Reviewed-by: Adam Langley <agl@google.com>
This was added in http://rt.openssl.org/Ticket/Display.html?id=2033 to support
a mode where a DTLS socket would statelessly perform the ClientHello /
HelloVerifyRequest portion of the handshake, to be handed off to a socket
specific to this peer address.
This is not used by WebRTC or other current consumers. If we need to support
something like this, it would be cleaner to do the listen portion (cookieless
ClientHello + HelloVerifyRequest) externally and then spin up an SSL instance
on receipt of a cookied ClientHello. This would require a slightly more complex
BIO to replay the second ClientHello but would avoid peppering the DTLS
handshake state with a special short-circuiting mode.
Change-Id: I7a413932edfb62f8b9368912a9a0621d4155f1aa
Reviewed-on: https://boringssl-review.googlesource.com/2220
Reviewed-by: Adam Langley <agl@google.com>
(Imported form upstream's 455b65dfab0de51c9f67b3c909311770f2b3f801 and
0d6a11a91f4de238ce533c40bd9507fe5d95f288)
Change-Id: Ia195c7fe753cfa3a7f8c91d2d7b2cd40a547be43
Imported from upstream's 9bed73adaa6f834177f29e478d9a2247a6577c04.
Upstream's commit appears to have been based on BoringSSL's commits to
improve the constant-time behaviour of RSA padding checks and thus I've
not tried to import those bits of the change.
Change-Id: I0ea5775b0f1e18741bbbc9f792a6af0d3d2a4caf
Pull constant-time methods out to a separate header, add tests.
(Imported from upstream's 9a9b0c0401cae443f115ff19921d347b20aa396b and
27739e92659d38cdefa21e51b7f52b81a7ac3388)
Change-Id: Id570f5c531aca791112929e6258989f43c8a78d7
State hanging off the SSL gets freed in two places.
Change-Id: I41a8d2a7cab35f0098396006e1f6380038ec471a
Reviewed-on: https://boringssl-review.googlesource.com/2212
Reviewed-by: Adam Langley <agl@google.com>
Also add a few other assertions.
Change-Id: Iae0c65802f4d05c7585e2790be5295f478e1f614
Reviewed-on: https://boringssl-review.googlesource.com/2210
Reviewed-by: Adam Langley <agl@google.com>
s->s3 is never NULL if an ssl3_* function is called, and we'll crash later
anyway. (This also makes scan-build stop believing it can be NULL.)
Change-Id: Ibf8433bd4d945f9bf5416d72946102a9e50d2787
Reviewed-on: https://boringssl-review.googlesource.com/2206
Reviewed-by: Adam Langley <agl@google.com>
Check the return value while we're here. This avoids some arithmetic and
appease scan-build's dead assignment flagger.
Change-Id: If3615076e091eb44b9e3e9d50cd64f80e645337e
Reviewed-on: https://boringssl-review.googlesource.com/2204
Reviewed-by: Adam Langley <agl@google.com>
Without SSL_MODE_AUTO_RETRY, even blocking mode will return
SSL_ERROR_WANT_{READ|WRITE} in the event of a renegotiation.
The comments in the code speak only of "nasty problems" unless this is
done. The original commit that added SSL_MODE_AUTO_RETRY
(54f10e6adce56eb2e59936e32216162aadc5d050) gives a little more detail:
The [...] behaviour is needed by applications such as s_client and
s_server that use select() to determine when to use SSL_read.
Without the -nbio flag, s_client will use select() to find when the
socket is readable and then call SSL_read with a blocking socket.
However, this will still block in the event of an incomplete record, so
the delay is already unbounded. This it's very unclear what the point of
this behaviour ever was.
Perhaps if the read and write paths were different sockets where the
read socket was non-blocking but the write socket was blocking. But that
seems like an implausible situation to worry too much about.
Change-Id: I9d9f2526afc2e0fd0e5440e9a047f419a2d61afa
Reviewed-on: https://boringssl-review.googlesource.com/2140
Reviewed-by: Adam Langley <agl@google.com>
This code isn't compiled in. It seems there was some half-baked logic for a
7-byte alert that includes more information about handshake messages
retransmit.
No such alert exists, and the code had a FIXME anyway. If it gets resurrected
in DTLS 1.3 or some extension, we can deal with it then.
Change-Id: I8784ea8ee44bb8da4b0fe5d5d507997526557432
Reviewed-on: https://boringssl-review.googlesource.com/2121
Reviewed-by: Adam Langley <agl@google.com>
This code was dead as ssl3_get_client_certificate no longer allows a
ClientHello; the hash would be reset, but then the handshake would fail anyway.
Change-Id: Ib98e6a319c048c263d7ee3a27832ea57bdd0e2ad
Reviewed-on: https://boringssl-review.googlesource.com/2120
Reviewed-by: Adam Langley <agl@google.com>
This change adds support to the Go code for renegotiation as a client,
meaning that we can test BoringSSL's renegotiation as a server.
Change-Id: Iaa9fb1a6022c51023bce36c47d4ef7abee74344b
Reviewed-on: https://boringssl-review.googlesource.com/2082
Reviewed-by: Adam Langley <agl@google.com>
Minor change, but they're the users of the old API left within
BoringSSL.
Change-Id: Ic24e0d006c97fa5265abc3373d3f98aa8d2f8b1e
Reviewed-on: https://boringssl-review.googlesource.com/2100
Reviewed-by: Adam Langley <agl@google.com>
If generating the master secret or applying the PSK post-processing fails,
we'll double-free all the ECDH state.
Change-Id: Id52931af73bdef5eceb06f7e64d32fdda629521e
Reviewed-on: https://boringssl-review.googlesource.com/2063
Reviewed-by: Adam Langley <agl@google.com>
Like ssl3_get_client_key_exchange, it is split into three parts:
- If PSK, query the PSK and write out the PSK identity.
- Compute the base pre-master secret.
- If PSK, compute the final pre-master secret.
This also fixes some double-frees on malloc failures in the ECDHE case. And it
avoids using the handshake output buffer to start the premaster secret.
Change-Id: I8631ee33c1e9c19604b3dcce2c676c83893c308d
Reviewed-on: https://boringssl-review.googlesource.com/2062
Reviewed-by: Adam Langley <agl@google.com>
pskKeyAgreement is now a wrapper over a base key agreement.
Change-Id: Ic18862d3e98f7513476f878b8df5dcd8d36a0eac
Reviewed-on: https://boringssl-review.googlesource.com/2053
Reviewed-by: Adam Langley <agl@google.com>
The current implementation switches the order of other_secret and psk;
other_secret is first. Fix it and rewrite with CBB instead. The server half got
fixed on accident in a prior refactor.
Change-Id: Ib52a756aadd66e4bf22c66794447f71f4772da09
Reviewed-on: https://boringssl-review.googlesource.com/2052
Reviewed-by: Adam Langley <agl@google.com>
Only the three plain PSK suites for now. ECDHE_PSK_WITH_AES_128_GCM_SHA256 will
be in a follow-up.
Change-Id: Iafc116a5b2798c61d90c139b461cf98897ae23b3
Reviewed-on: https://boringssl-review.googlesource.com/2051
Reviewed-by: Adam Langley <agl@google.com>
Deprecate the old two-pass version of the function. If the ticket is too long,
replace it with a placeholder value but keep the connection working.
Change-Id: Ib9fdea66389b171862143d79b5540ea90a9bd5fb
Reviewed-on: https://boringssl-review.googlesource.com/2011
Reviewed-by: Adam Langley <agl@google.com>
The old ones inverted their return value. Add SSL_(CTX_)set_srtp_profiles which
return success/failure correctly and deprecate the old functions. Also align
srtp.h with the new style since it's very short.
When this rolls through, we can move WebRTC over to the new ones.
Change-Id: Ie55282e8858331910bba6ad330c8bcdd0e38f2f8
Reviewed-on: https://boringssl-review.googlesource.com/2060
Reviewed-by: Adam Langley <agl@google.com>
Doing some archeaology, since the initial OpenSSL commit, key_arg has been
omitted from the serialization if key_arg_length was 0. Since this is an
SSLv2-only field and resuming an SSLv2 session with SSLv3+ is not possible,
there is no need to support parsing those sessions.
Interestingly, it is actually not the case that key_arg_length was only ever
set in SSLv2, historically. In the initial commit of OpenSSL, SSLeay 0.8.1b,
key_arg was used to store what appears to be the IV. That was then removed in
the next commit, an import of SSLeay 0.9.0b, at which point key_arg was only
ever set in SSLv3. That is old enough that there is certainly no need to
parse pre-SSLeay-0.9.0b sessions...
Change-Id: Ia768a2d97ddbe60309be20e2efe488640c4776d9
Reviewed-on: https://boringssl-review.googlesource.com/2050
Reviewed-by: Adam Langley <agl@google.com>
No more need for all the macros. For now, this still follows the two-pass i2d_*
API despite paying a now-unnecessary malloc. The follow-on commit will expose a
more reasonable API and deprecate this one.
Change-Id: I50ec63e65afbd455ad3bcd2f1ae3c782d9e8f9d2
Reviewed-on: https://boringssl-review.googlesource.com/2000
Reviewed-by: Adam Langley <agl@google.com>
Do away with all those unreadable macros. Also fix many many memory leaks in
the SSL_SESSION reuse case. Add a number of helper functions in CBS to help
with parsing optional fields.
Change-Id: I2ce8fd0d5b060a1b56e7f99f7780997fabc5ce41
Reviewed-on: https://boringssl-review.googlesource.com/1998
Reviewed-by: Adam Langley <agl@google.com>
There's only one caller and it doesn't use that feature. While I'm here, tidy
that function a little. Don't bother passing FALLBACK_SCSV into
ssl3_get_cipher_by_value.
Change-Id: Ie71298aeaaab6e24401e0a6c2c0d2281caa93ba4
Reviewed-on: https://boringssl-review.googlesource.com/2030
Reviewed-by: Adam Langley <agl@google.com>
There's no need to store them on the session. They're temporary handshake
state and weren't serialized in d2i_SSL_SESSION anyway.
Change-Id: I830d378ab49aaa4fc6c4c7a6a8c035e2263fb763
Reviewed-on: https://boringssl-review.googlesource.com/1990
Reviewed-by: Adam Langley <agl@google.com>
This removes the need to track the client cipher list in the SSL_SESSION. It
also eliminates a field in SSL_SESSION that wasn't serialized by
i2d_SSL_SESSION. It's only used to implement SSL_get_shared_ciphers which is
only used by debug code.
Moreover, it doesn't work anyway. The SSLv2 logic pruned that field to the
common ciphers, but the SSLv3+ logic just stores the client list as-is. I found
no internal callers that were actually compiled (if need be we can stub in
something that always returns the empty string or so).
Change-Id: I55ad45964fb4037fd623f7591bc574b2983c0698
Reviewed-on: https://boringssl-review.googlesource.com/1866
Reviewed-by: Adam Langley <agl@google.com>
This resolves a pile of MSVC warnings in Chromium.
Change-Id: Ib9a29cb88d8ed8ec4118d153260f775be059a803
Reviewed-on: https://boringssl-review.googlesource.com/1865
Reviewed-by: Adam Langley <agl@google.com>
We patch bugs into the runner implementation for testing, not our own.
Change-Id: I0a8ac73eaeb70db131c01a0fd9c84f258589a884
Reviewed-on: https://boringssl-review.googlesource.com/1845
Reviewed-by: Adam Langley <agl@google.com>
Remove one more difference to worry about switching between TLS and SSLv3
method tables.
Although this does change the get_ssl_method hook for the version-specific
tables (before TLS and SSLv3 would be somewhat partitioned), it does not appear
to do anything. get_ssl_method is only ever called in SSL_set_session for
client session resumption. Either you're using the version-specific method
tables and don't know about other versions anyway or you're using SSLv23 and
don't partition TLS vs SSL3 anyway.
BUG=chromium:403378
Change-Id: I8cbdf02847653a01b04dbbcaf61fcb3fa4753a99
Reviewed-on: https://boringssl-review.googlesource.com/1842
Reviewed-by: Adam Langley <agl@google.com>
Use the newly split out tls1_check_point_format. Also don't condition it on
s->tlsext_ecpointformatlist which is unrelated and made this code never run.
Change-Id: I9d77654c8eaebde07079d989cd60fbcf06025d75
Reviewed-on: https://boringssl-review.googlesource.com/1844
Reviewed-by: Adam Langley <agl@google.com>
This avoids the strange optional parameter thing by moving it to the client.
Also document what the functions should do.
Change-Id: I361266acadedfd2bfc4731f0900821fc2c2f954d
Reviewed-on: https://boringssl-review.googlesource.com/1843
Reviewed-by: Adam Langley <agl@google.com>
The TLS-specific hooks have been removed. We aim to no longer perform version
negotiation as a pre-processing step, so ensure the only differences to worry
about are the version, get_method hook, and the enc_data.
BUG=chromium:403378
Change-Id: I628ec6f4c50ceed01d7af8f4110b6dc95cfbe023
Reviewed-on: https://boringssl-review.googlesource.com/1841
Reviewed-by: Adam Langley <agl@google.com>
Still need to convert serializing code to CBB, but the current one is kinda
crazy.
Change-Id: I00e12a812c815bf01c53a26ccbb7c6727ea8c8fc
Reviewed-on: https://boringssl-review.googlesource.com/1840
Reviewed-by: Adam Langley <agl@google.com>
This fixes version mismatches on resumption without rewriting the entirety of
OpenSSL's version negotiation logic. (Which still badly needs to happen.)
BUG=chromium:417134
Change-Id: Ifa0c5dd2145e37fcd39eec25dfb3561ddb87c9f0
Reviewed-on: https://boringssl-review.googlesource.com/1823
Reviewed-by: Adam Langley <agl@google.com>
+ and - should also be forbidden. Any operation other than appending will mix
up the in_group bits and give unexpected behavior.
Change-Id: Ieaebb9ee6393aa36243d0765e45cae667f977ef5
Reviewed-on: https://boringssl-review.googlesource.com/1803
Reviewed-by: Adam Langley <agl@google.com>
It's redundant with the check at the top of the loop.
Change-Id: If64e5396658ca28cad937411c6fc8671a2abfdcd
Reviewed-on: https://boringssl-review.googlesource.com/1802
Reviewed-by: Adam Langley <agl@google.com>
It's just checking some constants. Also the comment's off now.
Change-Id: I934d32b76c705758ae7c18009d867e9820a4c5a8
Reviewed-on: https://boringssl-review.googlesource.com/1800
Reviewed-by: Adam Langley <agl@google.com>
This gives inappropriate_fallback and close_notify sent during the handshake
error strings. It'd also avoid having to write
case SSL_AD_REASON_OFFSET + SSL_AD_CLOSE_NOTIFY:
in Chromium.
Change-Id: I42123d5452eb7843ead883d112e58b3f087d3067
Reviewed-on: https://boringssl-review.googlesource.com/1780
Reviewed-by: Adam Langley <agl@google.com>
Both as client and as server. Also tests that ALPN causes False Start to kick
in.
Change-Id: Ib570346f3c511834152cd2df2ef29541946d3ab4
Reviewed-on: https://boringssl-review.googlesource.com/1753
Reviewed-by: Adam Langley <agl@google.com>
Otherwise the child is busy waiting for its second handshake.
Change-Id: Ic613eeb04c5d6c1ec1e1bbcb13946d3ac31d05f1
Reviewed-on: https://boringssl-review.googlesource.com/1752
Reviewed-by: Adam Langley <agl@google.com>
Notably, this would have caught ed8270a55c
(although, apart from staring at code coverage, knowing to set resumeSession on
the server test isn't exactly obvious). Perhaps we should systematically set it
on all extension server tests; ClientHello extension parsing happens after
resumption has been determined and is often sensitive to it.
Change-Id: Ie83f294a26881a6a41969e9dbd102d0a93cb68b5
Reviewed-on: https://boringssl-review.googlesource.com/1750
Reviewed-by: Adam Langley <agl@google.com>
Splitting the strength mask between SSL_EXP_MASK and SSL_STRONG_MASK no longer
does anything. Also remove the SSL_NOT_EXP bit and condense the strength bits.
Change-Id: I9e61acdde008c3ce06bb37f78a72099fc53ed080
Reviewed-on: https://boringssl-review.googlesource.com/1757
Reviewed-by: Adam Langley <agl@google.com>
Simplify all the cipher gathering logic. The set of supported ciphers is known,
so there is no need to determine if some cipher exists but doesn't work.
Change-Id: Idcaae67e7bfc40a3deb925d85ee1a99a931b67e7
Reviewed-on: https://boringssl-review.googlesource.com/1756
Reviewed-by: Adam Langley <agl@google.com>
Chromium does not like static initializers, and the CPU logic uses one to
initialize CPU bits. However, the crypto library lacks an explicit
initialization function, which could complicate (no compile-time errors)
porting existing code which uses crypto/, but not ssl/.
Add an explicit CRYPTO_library_init function, but make it a no-op by default.
It only does anything (and is required) if building with
BORINGSSL_NO_STATIC_INITIALIZER.
Change-Id: I6933bdc3447fb382b1f87c788e5b8142d6f3fe39
Reviewed-on: https://boringssl-review.googlesource.com/1770
Reviewed-by: Adam Langley <agl@google.com>
These were added in TLS 1.2. They are like the standard AES-CBC cipher suites,
but use different HMACs.
Change-Id: Ib89ddebd1aa398b1347f8285f5d827068b1bd181
Reviewed-on: https://boringssl-review.googlesource.com/1730
Reviewed-by: Adam Langley <agl@google.com>
Update SSL_OP_ALL to account for SSL_OP_CRYPTOPRO_TLSEXT_BUG being gone,
and update ssl3_setup_write_buffer to account for SSL_MODE_CBC_RECORD_SPLITTING
rather than the now defunct SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS.
Also remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is to allow for a buggy peer
which pads CBC with N bytes of value N rather than N+1 bytes of value N. This
quirk has been broken since CBC padding checks became constant-time, as
demonstrated by this attempt at a test. (Instead of just decrementing
padding_length, it needs to also keep track of a separate padding_value and not
decrement that one.)
https://boringssl-review.googlesource.com/#/c/1690/
(The quirk would also fall over anyway if the buggy client ever did a session
resumption; then the server speaks first rather than the client, and the quirk
triggered on reading the first encrypted record from the peer.)
Change-Id: I19942dc629a47832aead77a46bb50e0b0a9780b3
Reviewed-on: https://boringssl-review.googlesource.com/1694
Reviewed-by: Adam Langley <agl@google.com>
Configures the SSL stack to log session information to a BIO. The intent is to
support NSS's SSLKEYLOGFILE environment variable. Add support for the same
environment variable to tool/client.cc.
Tested against Wireshark 1.12.0.
BUG=393477
Change-Id: I4c231f9abebf194eb2df4aaeeafa337516774c95
Reviewed-on: https://boringssl-review.googlesource.com/1699
Reviewed-by: Adam Langley <agl@google.com>
The only MD5 CBC-mode cipher suites are TLS_KRB5_WITH_DES_CBC_MD5,
TLS_KRB5_WITH_3DES_EDE_CBC_MD5, and TLS_KRB5_WITH_IDEA_CBC_MD5. We do not
support those, and it seems quite safe to assume that list will not grow.
No current cipher suites use SHA-224 or SHA-512 MACs. We can restore those
cases if that ever changes, but hopefully any future cipher suites we care
about will be using the AEAD construction.
Change-Id: I7f2d30238e2156a59b5fed1e48fabe6660fc9b67
Reviewed-on: https://boringssl-review.googlesource.com/1697
Reviewed-by: Adam Langley <agl@google.com>
This check got refactored in OpenSSL 1.0.2 and broke in the process. Fix this
and add a test. Otherwise things like client auth can get slightly confused; it
will try to sign the MD5/SHA-1 hash, but the TLS 1.2 cipher suite may not use
SSL_HANDSHAKE_MAC_DEFAULT, so those digests won't be available.
Based on upstream's 226751ae4a1f3e00021c43399d7bb51a99c22c17.
Change-Id: I5b864d3a696f3187b849c53b872c24fb7df27924
Reviewed-on: https://boringssl-review.googlesource.com/1696
Reviewed-by: Adam Langley <agl@google.com>
Switch all of SRTP code to the standard return value convention with two
exceptions. Unfortunately, OpenSSL exposed API with the wrong error code. Keep
the public API flipped and document.
Change-Id: I43ac82513f4f52bb36a0b54aba9b9e0fa285730e
Reviewed-on: https://boringssl-review.googlesource.com/1691
Reviewed-by: Adam Langley <agl@google.com>
If this is part of SSL_OP_ALL, we should have a test for it.
Change-Id: Ia72422beb2da6434726e78e174f3416f90f7c897
Reviewed-on: https://boringssl-review.googlesource.com/1695
Reviewed-by: Adam Langley <agl@google.com>
Those codepaths are never hit.
Change-Id: Ib6908ebe90ab667774785298fdc3f96acc4b50df
Reviewed-on: https://boringssl-review.googlesource.com/1693
Reviewed-by: Adam Langley <agl@google.com>
Thanks to Denis Denisov for running the analysis.
Change-Id: I80810261e013423e746fd8d8afefb3581cffccc0
Reviewed-on: https://boringssl-review.googlesource.com/1701
Reviewed-by: Adam Langley <agl@google.com>
Thanks to Denis Denisov for noting that |host_name| could be used while
uninitialised in the resumption case.
While in the area, this change also renames |servername_done| to
something more reasonable and removes a documented value that was never
used. Additionally, the SNI ack was only sent when not resuming so
calculating whether it should be sent when processing ClientHello
extensions (which is after s->hit has been set) is superfluous.
Lastly, since SNI is only acked by servers, there's no need to worry
about the SNI callback returning NOACK in the client case.
Change-Id: Ie4ecfc347bd7afaf93b12526ff9311cc45da4df6
Reviewed-on: https://boringssl-review.googlesource.com/1700
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Reorder the tests in all_tests.sh to be in alphabetical order.
Change-Id: Idc6df6ab4a25709312a6f58635061bb643582c70
Reviewed-on: https://boringssl-review.googlesource.com/1680
Reviewed-by: Adam Langley <agl@google.com>
Remove the old implementation which was excessively general. This mirrors the
SCT support and adds a single boolean flag to request an OCSP response with no
responder IDs, extensions, or frills. The response, if received, is stored on
the SSL_SESSION so that it is available for (re)validation on session
resumption; Chromium revalidates the saved auth parameters on resume.
Server support is unimplemented for now. This API will also need to be adjusted
in the future if we implement RFC 6961.
Change-Id: I533c029b7f7ea622d814d05f934fdace2da85cb1
Reviewed-on: https://boringssl-review.googlesource.com/1671
Reviewed-by: Adam Langley <agl@google.com>
Maintain a handshake buffer in prf.go to implement TLS 1.2 client auth. Also
use it for SSL 3. This isn't strictly necessary as we know the hash functions,
but Go's hash.Hash interface lacks a Copy method.
Also fix the server-side tests which failed to test every TLS version.
Change-Id: I98492c334fbb9f2f0f89ee9c5c8345cafc025600
Reviewed-on: https://boringssl-review.googlesource.com/1664
Reviewed-by: Adam Langley <agl@google.com>
Don't pollute the embedder's namespace with a session_ctx macro. It looks like
the difference was that, without TLS extensions, session_ctx was ctx rather
than initial_ctx. Now it's always initial_ctx. Retain the semantics of
switching SSL_CTX's out after the fact, until/unless we decide to replace that
with something less scary-sounding.
Change-Id: Ie5df5138aec25218ca80031cf645671968b8a54a
Reviewed-on: https://boringssl-review.googlesource.com/1663
Reviewed-by: Adam Langley <agl@google.com>
Get all this stuff out of the way.
- OPENSSL_NO_MD5
- OPENSSL_NO_SHA
- OPENSSL_NO_EC
- OPENSSL_NO_ECDSA
- OPENSSL_NO_ECDH
- OPENSSL_NO_NEXTPROTONEG
- OPENSSL_NO_DH
- OPENSSL_NO_SSL3
- OPENSSL_NO_RC4
- OPENSSL_NO_RSA
Also manually removed a couple instances of OPENSSL_NO_DSA that seemed to be
confused anyway. Did some minor manual cleanup. (Removed a few now-pointless
'if (0)'s.)
Change-Id: Id540ba97ee22ff2309ab20ceb24c7eabe766d4c4
Reviewed-on: https://boringssl-review.googlesource.com/1662
Reviewed-by: Adam Langley <agl@google.com>
This moves CertificateVerify digest processing to the new
SSL_GET_MESSAGE_DONT_HASH_MESSAGE flag. It also refactors it similarly to
ssl3_send_cert_verify and moves that logic to a common ssl3_cert_verify_hash
function to compute the handshake hash.
This removes a large chunk of duplicate (and divergent!) logic between TLS and
DTLS. It also removes TLS1_FLAGS_KEEP_HANDSHAKE.
Change-Id: Ia63c94f7d76d901bc9c4c33454fbfede411adf63
Reviewed-on: https://boringssl-review.googlesource.com/1633
Reviewed-by: Adam Langley <agl@google.com>
Upstream originally sampled the Finished message's hash at ChangeCipherSpec,
but our patches to add messages between the two complicated this. Move DTLS to
this path, but use the new SSL_GET_MESSAGE_DONT_HASH_MESSAGE flag to avoid
special-casing message types in ssl3_get_message.
Change-Id: I9c8ddd9cc500c94dff2ec2f696f89d50ab01b3ad
Reviewed-on: https://boringssl-review.googlesource.com/1632
Reviewed-by: Adam Langley <agl@google.com>
This avoids needing the save the hash on the SSL* (and use some field for two
purposes). Instead, use the new SSL_GET_MESSAGE_DONT_HASH_MESSAGE flag (which
actually was already used here, but at the time, pointlessly). Also fix a minor
bug where the hash would be recomputed in non-blocking mode because init_num
may stay zero for a few state machine iterations.
Change-Id: I3d8331cf3134c5f9a3eda9e988bba5bcebe40933
Reviewed-on: https://boringssl-review.googlesource.com/1631
Reviewed-by: Adam Langley <agl@google.com>
This replaces the special-case in ssl3_get_message for Channel ID. Also add
ssl3_hash_current_message to hash the current message, taking TLS vs DTLS
handshake header size into account.
One subtlety with this flag is that a message intended to be processed with
SSL_GET_MESSAGE_DONT_HASH_MESSAGE cannot follow an optional message
(reprocessed with reuse_message, etc.). There is an assertion to that effect.
If need be, we can loosen it to requiring that the preceeding optional message
also pass SSL_GET_MESSAGE_DONT_HASH_MESSAGE and then maintain some state to
perform the more accurate assertion, but this is sufficient for now.
Change-Id: If8c87342b291ac041a35885b9b5ee961aee86eab
Reviewed-on: https://boringssl-review.googlesource.com/1630
Reviewed-by: Adam Langley <agl@google.com>
Now that only RSA and ECDSA certificates are supported, the server should just
reject non-signing ones outright, rather than allowing them to skip
CertificateVerify.
Change-Id: I7fe5ed3adde14481016ee841ed241faba18c26f0
Reviewed-on: https://boringssl-review.googlesource.com/1609
Reviewed-by: Adam Langley <agl@google.com>
We may wish to pass data to the runner that contains NULs.
Change-Id: Id78dad0ad0b5b6d0537481c818e3febdf1740cc9
Reviewed-on: https://boringssl-review.googlesource.com/1603
Reviewed-by: Adam Langley <agl@google.com>
The return values are now 1/0, not 1/0/-1.
Change-Id: If65bb08a229c7944cb439ec779df461904d0ec19
Reviewed-on: https://boringssl-review.googlesource.com/1607
Reviewed-by: Adam Langley <agl@google.com>
09bd58d1f1 flipped a condition. Doing that
memset in the DTLS case breaks retransmits across a CCS and fails to memset in
the TLS case.
Strangely, it didn't break any tests, but I think that's a function of us
lacking renego tests. The sequence number doesn't seem to be used in the
initial handshake for TLS, so it stayed at zero. After a renego, that codepath
is relevant.
Change-Id: I369a524021857a82e181af7798c7a10fe6279550
Reviewed-on: https://boringssl-review.googlesource.com/1601
Reviewed-by: Adam Langley <agl@google.com>
Otherwise, in C, it becomes a K&R function declaration which doesn't actually
type-check the number of arguments.
Change-Id: I0731a9fefca46fb1c266bfb1c33d464cf451a22e
Reviewed-on: https://boringssl-review.googlesource.com/1582
Reviewed-by: Adam Langley <agl@google.com>
It doesn't appear to have ever been implemented on the client. The server code
stopped working anyway because it now skips the ssl_get_message call, so we
never cash in on the reuse_message, attempt to reprocess the repeated
ClientHello, and reject it thinking it's a second MS SGC restart.
Change-Id: Id536846e08460143f6fc0a550bdcc1b26b506b04
Reviewed-on: https://boringssl-review.googlesource.com/1580
Reviewed-by: Adam Langley <agl@google.com>
Remove all the logic managing key types that aren't being used anymore.
Change-Id: I101369164588048e64ba1c84a6b8aac8f3a221cd
Reviewed-on: https://boringssl-review.googlesource.com/1567
Reviewed-by: Adam Langley <agl@google.com>
DSA is not connected up to EVP, so it wouldn't work anyway. We shouldn't
advertise a cipher suite we don't support. Chrome UMA data says virtually no
handshakes end up negotiating one of these.
Change-Id: I874d934432da6318f05782ebd149432c1d1e5275
Reviewed-on: https://boringssl-review.googlesource.com/1566
Reviewed-by: Adam Langley <agl@google.com>
These are the variants where the CA signs a Diffie-Hellman keypair. They are
not supported by Chrome on NSS.
Change-Id: I569a7ac58454bd3ed1cd5292d1f98499012cdf01
Reviewed-on: https://boringssl-review.googlesource.com/1564
Reviewed-by: Adam Langley <agl@google.com>
In the fixed_ecdh case, it wasn't even implemented, but there was stub code for
it. It complicates the ClientKeyExchange (the client parameters become implicit
in the certificate) and isn't used.
Change-Id: I3627a37042539c90e05e59cd0cb3cd6c56225561
Reviewed-on: https://boringssl-review.googlesource.com/1563
Reviewed-by: Adam Langley <agl@google.com>
This also removes the 'LOW' strength class.
Change-Id: Iffd2356dadb4a4875c1547a613d51061101358fd
Reviewed-on: https://boringssl-review.googlesource.com/1562
Reviewed-by: Adam Langley <agl@google.com>
NULL, SRP, CAMELLIA, export ciphers, SSLv2, IDEA, and SEED are gone. Unknown
directives are silently ignored in the parser, so there is no need to retain
their masks and entries in the cipher suite aliases.
Change-Id: If43b9cbce56b3e1c401db764b88996940452a300
Reviewed-on: https://boringssl-review.googlesource.com/1561
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: Ia0daaaaf464cfa0e9d563d7f376ce2bb2e338685
Reviewed-on: https://boringssl-review.googlesource.com/1560
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
To align with what Chrome sends on NSS, remove all 3DES cipher suites except
RSA_WITH_3DES_EDE_CBC_SHA. This avoids having to order a PFS 3DES cipher
against a non-PFS 3DES cipher.
Remove the strength sort which wanted place AES_256_CBC ahead of AES_128_GCM
and is not especially useful (everything under 128 is either 3DES or DES).
Instead, explicitly order all the bulk ciphers. Continue to prefer PFS over
non-PFS and ECDHE over DHE.
This gives the following order in Chromium. We can probably prune it a bit
(DHE_DSS, DH_*) in a follow-up.
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcc14) Forward Secrecy 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcc13) Forward Secrecy 256
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcc15) Forward Secrecy 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f) Forward Secrecy 128
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b) Forward Secrecy 128
TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 (0xa2) Forward Secrecy* 128
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e) Forward Secrecy 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) Forward Secrecy 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a) Forward Secrecy 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39) Forward Secrecy 256
TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x38) Forward Secrecy* 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) Forward Secrecy 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009) Forward Secrecy 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33) Forward Secrecy 128
TLS_DHE_DSS_WITH_AES_128_CBC_SHA (0x32) Forward Secrecy* 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011) Forward Secrecy 128
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA (0xc007) Forward Secrecy 128
TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (0xa4) 128
TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (0xa0) 128
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c) 128
TLS_DH_RSA_WITH_AES_256_CBC_SHA (0x37) 256
TLS_DH_DSS_WITH_AES_256_CBC_SHA (0x36) 256
TLS_RSA_WITH_AES_256_CBC_SHA (0x35) 256
TLS_DH_RSA_WITH_AES_128_CBC_SHA (0x31) 128
TLS_DH_DSS_WITH_AES_128_CBC_SHA (0x30) 128
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f) 128
TLS_RSA_WITH_RC4_128_SHA (0x5) 128
TLS_RSA_WITH_RC4_128_MD5 (0x4) 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa) 112
BUG=405091
Change-Id: Ib8dd28469414a4eb496788a57a215e7e21f8c37f
Reviewed-on: https://boringssl-review.googlesource.com/1559
Reviewed-by: Adam Langley <agl@google.com>
Just use the normal API for them.
Change-Id: Ibb5988611a86e8d39abda1e02087523d98defb51
Reviewed-on: https://boringssl-review.googlesource.com/1555
Reviewed-by: Adam Langley <agl@google.com>
RFC 6347 changed the meaning of server_version in HelloVerifyRequest. It should
now always be 1.0 with version negotiation not happening until ServerHello. Fix
runner.go logic and remove #if-0'd code in dtls1_get_hello_verify.
Enforce this in the runner for when we get DTLS 1.2 tests.
Change-Id: Ice83628798a231df6bf268f66b4c47b14a519386
Reviewed-on: https://boringssl-review.googlesource.com/1552
Reviewed-by: Adam Langley <agl@google.com>
Rather than switching the order of the ServerHello and HelloVerifyRequest
states and processing each twice, have the states follow the protocol order.
HelloVerifyRequest reading is optional and ServerHello is strict. Use the
send_cookie bit to determine whether we're expecting a cookie or not.
Fix the dtls1_stop_timer call in these states to consistently hit the end of a
server flight; the previous flight should not be cleared from the retransmit
buffer until the entire next flight is received. That said, OpenSSL doesn't
appear to implement the part where, on receipt of the previous peer flight, the
buffered flight is retransmitted. (With the exception of a SSL3_MT_FINISHED
special-case in dtls1_read_bytes.) So if the peer is also OpenSSL, this doesn't
do anything.
Also fix the DTLS test which wasn't actually asserting that the ClientHello
matched.
Change-Id: Ia542190972dbffabb837d32c9d453a243caa90b2
Reviewed-on: https://boringssl-review.googlesource.com/1551
Reviewed-by: Adam Langley <agl@google.com>
I see no internal users and the existence of a THIRD version encoding
complicates all version-checking logic. Also convert another version check to
SSL_IS_DTLS that was missed earlier.
Change-Id: I60d215f57d44880f6e6877889307dc39dbf838f7
Reviewed-on: https://boringssl-review.googlesource.com/1550
Reviewed-by: Adam Langley <agl@google.com>
This lets us put the SSL_CIPHER table in the data section. For type-checking,
make STACK_OF(SSL_CIPHER) cast everything to const SSL_CIPHER*.
Note that this will require some changes in consumers which weren't using a
const SSL_CIPHER *.
Change-Id: Iff734ac0e36f9e5c4a0f3c8411c7f727b820469c
Reviewed-on: https://boringssl-review.googlesource.com/1541
Reviewed-by: Adam Langley <agl@google.com>
Of the remaining implementations left, ssl3_, dtls1_, and ssl23_, dtls1_ is
redundant and can be folded into ssl3_. ssl23_ actually isn't; it sets 5
minutes rather than 2 hours. Two hours seems to be what everything else uses
and seems a saner default. Most consumers seem to override it anyway
(SSL_CTX_set_timeout). But it is a behavior change.
The method is called at two points:
- SSL_get_default_timeout
- SSL_CTX_new
Incidentally, the latter call actually makes the former never called internally
and the value it returns a lie. SSL_get_default_timeout returns the default
timeout of the /current/ method, but in ssl_get_new_session, the timeout is
shadowed by session_timeout on the context. That is initialized when
SSL_CTX_new is called. So, unless you go out of your way to
SSL_CTX_set_timeout(0), it always overrides. (And it actually used to a
difference because, for SSL23, the SSL_CTX's method is SSL23, but, when session
creation happens, the SSL's method is the version-specific one.)
Change-Id: I331d3fd69b726242b36492402717b6d0b521c6ee
Reviewed-on: https://boringssl-review.googlesource.com/1521
Reviewed-by: Adam Langley <agl@google.com>
Those ciphers go through EVP_AEAD now.
Change-Id: Ia97af9960223724f041dc2c249def9e626fd03f8
Reviewed-on: https://boringssl-review.googlesource.com/1520
Reviewed-by: Adam Langley <agl@google.com>
Also remove SSL_eNULL ciphers. They were broken anyway in the initial import
because of a lost 'else', but just remove them altogether.
Change-Id: Ie71cf1b45f8fc6883e209801443eddf7f2d058ba
Reviewed-on: https://boringssl-review.googlesource.com/1518
Reviewed-by: Adam Langley <agl@google.com>
It was added in OpenSSL 1.0.2, so nothing can be depending on it yet. If we
really want a Suite B profile, it seems better to generate a configuration for
the rest of the system rather than pepper the codebase with checks.
Change-Id: I1be3ebed0e87cbfe236ade4174dcf5bbc7e10dd5
Reviewed-on: https://boringssl-review.googlesource.com/1517
Reviewed-by: Adam Langley <agl@google.com>
The missing SSL 3.0 client support in runner.go was fairly minor.
Change-Id: Ibbd440c9b6be99be08a214dec6b93ca358d8cf0a
Reviewed-on: https://boringssl-review.googlesource.com/1516
Reviewed-by: Adam Langley <agl@google.com>
This was done for the server when parsing a session ticket, but it
wasn't done in the parsing function itself. That caused problems when
high level code used the parsing function directly to set a session for
the client code.
See comments in internal bug 7091840.
Change-Id: Iaa048c3df62cd9fe7a003af33805819e2556960a
The protocols are pretty similar; they were all basically redundant. The free
of s->tlsext_session_ticket (more fallout from the EAP-FAST patch) was moved to
SSL_free because that object's attached to s, not s->s3. This is relevant if
SSL_set_ssl_method gets called.
Change-Id: I14a896ba8a6a2c34ab1cb5f65311b117051228da
Reviewed-on: https://boringssl-review.googlesource.com/1509
Reviewed-by: Adam Langley <agl@google.com>
This removes some duplicate code in parsing command-line flags and, more
importantly, makes configuration available when constructing the SSL_CTX and
avoids a number of globals.
Change-Id: I26e2d2285b732f855a2c82752bc8e0db480c3b30
Reviewed-on: https://boringssl-review.googlesource.com/1502
Reviewed-by: Adam Langley <agl@google.com>
Run against openssl s_client and openssl s_server. This seems to work for a
start, although it may need to become cleverer to stress more of BoringSSL's
implementation for test purposes.
In particular, it assumes a reliable, in-order channel. And it requires that
the peer send handshake fragments in order. Retransmit and whatnot are not
implemented. The peer under test will be expected to handle a lossy channel,
but all loss in the channel will be controlled. MAC errors, etc., are fatal.
Change-Id: I329233cfb0994938fd012667ddf7c6a791ac7164
Reviewed-on: https://boringssl-review.googlesource.com/1390
Reviewed-by: Adam Langley <agl@google.com>
Gives bounds checks and asserts that there's nothing after the cookie.
Change-Id: I8f9753e0c72670e9960f73a5722cefd9c02696a9
Reviewed-on: https://boringssl-review.googlesource.com/1507
Reviewed-by: Adam Langley <agl@google.com>
Mirror the changes in s3_clnt.c.
Change-Id: I7af7080c6eea2a67cc994befa11e45d32eaa9615
Reviewed-on: https://boringssl-review.googlesource.com/1506
Reviewed-by: Adam Langley <agl@google.com>
Analogous fix for DTLS as upstream's c519e89f5c359b8c0f747519773284d9b6382791.
Change-Id: I8a56070ce2a1edf4e9ceb2fd8ce08552e25a1cf3
Reviewed-on: https://boringssl-review.googlesource.com/1504
Reviewed-by: Adam Langley <agl@google.com>
They weren't updated to account for DTLS 1.2.
Change-Id: I81b3bfcb84a46d7b233bb567976a7de37bc46b92
Reviewed-on: https://boringssl-review.googlesource.com/1503
Reviewed-by: Adam Langley <agl@google.com>
https://crbug.com/353579
Align behavior with NSS and report SSL_R_BAD_DH_P_LENGTH error
when size of the server's dh group is less than 512 bits.
Change-Id: I09f1828482f40b2283f7c6a69425819379399815
Reviewed-on: https://boringssl-review.googlesource.com/1480
Reviewed-by: Adam Langley <agl@google.com>
Even if OPENSSL_free() now simply is defined to free(), it is
still nice to consistently use OPENSSL_free, so that they can
easily be replaced. Many embedded platforms still have slow
allocation and free functions.
Change-Id: Ie8781591311f12c7f69206dbad6fc4a0c89d88b7
Reviewed-on: https://boringssl-review.googlesource.com/1490
Reviewed-by: Adam Langley <agl@google.com>
This is needed by Android because it passes this string to a handshake
callback. It's implemented in Android's OpenSSL in this patch:
https://android.googlesource.com/platform/external/openssl.git/+/master/patches/0003-jsse.patch
(Note that it's called |SSL_authentication_method| there.)
I didn't format this function in OpenSSL style because it's crazy and
because we'll probably clang-format ssl/ soon.
Change-Id: I865540511b50859c339da5d76ce37810449aa444
Android needs this and it was patched into their OpenSSL in
https://android.googlesource.com/platform/external/openssl.git/+/master/patches/0003-jsse.patch
It appears that this is needed because javax.net.ssl.SSLEngine has it as
part of its interface and thus it's part of the Android API. No idea why
anything would ever want to disable that though.
Change-Id: I9c6279a961637f44936889edbe269b9d5c19746d
ssl23_get_client_hello has lots of remnants of SSLv2 support and remnants of an
even older SSL_OP_NON_EXPORT_FIRST option (see upstream's
d92f0bb6e9ed94ac0c3aa0c939f2565f2ed95935) which complicates the logic.
Split it into three states and move V2ClientHello parsing into its own
function. Port it to CBS and CBB to give bounds checks on the V2ClientHello
parse.
This fixes a minor bug where, if the SSL_accept call in ssl23_get_client_hello
failed, cb would not be NULL'd and SSL_CB_ACCEPT_LOOP would get reported an
extra time.
It also unbreaks the invariant between s->packet, s->packet_length,
s->s3->rbuf.buf, and s->s3->rbuf.offset at the point the switch, although this
was of no consequence because the first ssl3_read_n call passes extend = 0
which resets s->packet and s->packet_length.
It also makes us tolerant to major version bumps in the ClientHello. Add tests
for TLS tolerance of both minor and major version bumps as well as the HTTP
request error codes.
Change-Id: I948337f4dc483f4ebe1742d3eba53b045b260257
Reviewed-on: https://boringssl-review.googlesource.com/1455
Reviewed-by: Adam Langley <agl@google.com>
Windows doesn't have ssize_t, sadly. There's SSIZE_T, but defining an
OPENSSL_SSIZE_T seems worse than just using an int.
Change-Id: I09bb5aa03f96da78b619e551f92ed52ce24d9f3f
Reviewed-on: https://boringssl-review.googlesource.com/1352
Reviewed-by: Adam Langley <agl@google.com>
ssl3_send_client_key_exchange were wrongly reported
by ssl3_send_client_certificate() and
ssl3_check_cert_and_algorithm()
Change-Id: I244d3d871b6b4f75a188fd386d52ffc4335d1f9b
Reviewed-on: https://boringssl-review.googlesource.com/1460
Reviewed-by: Adam Langley <agl@google.com>
It's a different handshake flow with more state machine coverage. We should
make sure to test the asynchronous version.
Change-Id: I0bb79ca7e6a86bd3cac66bac1f795a885d474909
Reviewed-on: https://boringssl-review.googlesource.com/1454
Reviewed-by: Adam Langley <agl@google.com>
Didn't have coverage for abbreviated handshakes with NewSessionTicket. Also add
some missing resumeSession flags so the tests match the comments.
Change-Id: Ie4d76e8764561f3f1f31e1aa9595324affce0db8
Reviewed-on: https://boringssl-review.googlesource.com/1453
Reviewed-by: Adam Langley <agl@google.com>
Also change MaxHandshakeRecordLength to 1 in the handshake coverage tests to
better stress the state machine.
Change-Id: I27fce2c000b3d4818fd2e9a47fb09d3f646dd1bd
Reviewed-on: https://boringssl-review.googlesource.com/1452
Reviewed-by: Adam Langley <agl@google.com>
Test all pairs of client and server version, except for the ones that require
SSLv3 client support in runner.go. That is, as yet, still missing.
Change-Id: I601ab49c5526cd2eb4f85d5d535570e32f218d5b
Reviewed-on: https://boringssl-review.googlesource.com/1450
Reviewed-by: Adam Langley <agl@google.com>
It's not part of SSL_OP_ALL and is unused, so remove it. Add a test that
asserts the version check works.
Change-Id: I917516594ec5a4998a8316782f035697c33d99b0
Reviewed-on: https://boringssl-review.googlesource.com/1418
Reviewed-by: Adam Langley <agl@google.com>
(This change originally applied to 1.0.1. In the switch to 1.0.2, the
DTLS specific client processing was removed and now the s3_clnt.c
functions are used. This caused most of the patch to be moot. What
remains is still useful however. For the original patch, see the change
against 1.0.1: 88ae012c8092852f03c50f6461175271104b4c8a)
CVE-2014-3510
Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
(Imported from upstream's 1d7d0ed9c21403d79d602b6c7d76fdecf5e737da)
Change-Id: I666f9c48d603f2366cab821ae446a57360c3026b
Reviewed-on: https://boringssl-review.googlesource.com/1439
Reviewed-by: Adam Langley <agl@google.com>
CVE-2014-3509
(Imported from upstream's 92aa73bcbfad44f9dd7997ae51537ac5d7dc201e)
Change-Id: Ibc681897251081ae5ebfea0ff6ca9defd73fe0f5
Reviewed-on: https://boringssl-review.googlesource.com/1441
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
In a couple of functions, a sequence number would be calculated twice.
Additionally, in |dtls1_process_out_of_seq_message|, we know that
|frag_len| <= |msg_hdr->msg_len| so the later tests for |frag_len <
msg_hdr->msg_len| can be more clearly written as |frag_len !=
msg_hdr->msg_len|, since that's the only remaining case.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's d345a24569edf0a966b3d6eaae525f0ca4c5e570)
Change-Id: I038f9f01a1d9379f1ee058b231d80e8b9ce6c2d7
Reviewed-on: https://boringssl-review.googlesource.com/1438
Reviewed-by: Adam Langley <agl@google.com>
Applying same fix as in dtls1_process_out_of_seq_message. A truncated
DTLS fragment would cause *ok to be clear, but the return value would
still be the number of bytes read.
Problem identified by Emilia Käsper, based on previous issue/patch by Adam
Langley.
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's 3d5dceac430d7b9b273331931d4d2303f5a2256f)
Change-Id: Ibe30716266e2ee1489c98b922cf53edda096c23c
Reviewed-on: https://boringssl-review.googlesource.com/1437
Reviewed-by: Adam Langley <agl@google.com>
Previously, a truncated DTLS fragment in
|dtls1_process_out_of_seq_message| would cause *ok to be cleared, but
the return value would still be the number of bytes read. This would
cause |dtls1_get_message| not to consider it an error and it would
continue processing as normal until the calling function noticed that
*ok was zero.
I can't see an exploit here because |dtls1_get_message| uses
|s->init_num| as the length, which will always be zero from what I can
see.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's aad61c0a57a3b6371496034db61675abcdb81811.)
Change-Id: I2fb0ea93b6e812e19723ada3351f842cc7b2fa91
Reviewed-on: https://boringssl-review.googlesource.com/1436
Reviewed-by: Adam Langley <agl@google.com>
The |pqueue_insert| function can fail if one attempts to insert a
duplicate sequence number. When handling a fragment of an out of
sequence message, |dtls1_process_out_of_seq_message| would not call
|dtls1_reassemble_fragment| if the fragment's length was zero. It would
then allocate a fresh fragment and attempt to insert it, but ignore the
return value, leaking the fragment.
This allows an attacker to exhaust the memory of a DTLS peer.
Fixes CVE-2014-3507
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's 8ca4c4b25e050b881f3aad7017052842b888722d.)
Change-Id: I387e3f6467a0041f6367965ed3c1ad4377b9ac08
Reviewed-on: https://boringssl-review.googlesource.com/1435
Reviewed-by: Adam Langley <agl@google.com>
In |dtls1_reassemble_fragment|, the value of
|msg_hdr->frag_off+frag_len| was being checked against the maximum
handshake message size, but then |msg_len| bytes were allocated for the
fragment buffer. This means that so long as the fragment was within the
allowed size, the pending handshake message could consume 16MB + 2MB
(for the reassembly bitmap). Approx 10 outstanding handshake messages
are allowed, meaning that an attacker could consume ~180MB per DTLS
connection.
In the non-fragmented path (in |dtls1_process_out_of_seq_message|), no
check was applied.
Fixes CVE-2014-3506
Wholly based on patch by Adam Langley with one minor amendment.
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's 0598468fc04fb0cf2438c4ee635b587aac1bcce6)
Change-Id: I4849498eabb45ec973fcb988d639b23145891e25
Reviewed-on: https://boringssl-review.googlesource.com/1434
Reviewed-by: Adam Langley <agl@google.com>
The |item| variable, in both of these cases, may contain a pointer to a
|pitem| structure within |s->d1->buffered_messages|. It was being freed
in the error case while still being in |buffered_messages|. When the
error later caused the |SSL*| to be destroyed, the item would be double
freed.
Thanks to Wah-Teh Chang for spotting that the fix in 1632ef74 was
inconsistent with the other error paths (but correct).
Fixes CVE-2014-3505
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
(Imported from upstream's 49850075555893c9c60d5b981deb697f3b9515ea)
Change-Id: Ie40007184f6194ba032b4213c18d36254e80aaa6
Reviewed-on: https://boringssl-review.googlesource.com/1432
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
When the write size was exactly SSL3_RT_MAX_PLAIN_LENGTH+1 and record
splitting is needed, an extra byte would be added to the max size of the
message to be written. This would cause the requested size to not exceed
the max. If the SSL_WANT_WRITE error were returned, the next packet
would not get the extra byte added to the max packet size since
record_split_done is set. Since a different set of arguments
(SSL3_RT_MAX_PLAIN_LENGTH+1 vs SSL3_RT_MAX_PLAIN_LENGTH) would be passed
to do_ssl3_write, it would return an "SSL3_WRITE_PENDING:bad write
retry" error.
To avoid a failure in the opposite direction, the max variable increment
is removed as well. This can happen when SSL_MODE_ENABLE_PARTIAL_WRITE
is not enabled and the call to ssl3_write_bytes contains, e.g., a buffer
of 2*SSL3_RT_MAX_PLAIN_LENGTH, where the first call into do_ssl3_write
succeeds writing the first SSL3_RT_MAX_PLAIN_LENGTH bytes, but writing
the second SSL3_RT_MAX_PLAIN_LENGTH bytes fails. This means the first
time the the second section of SSL3_RT_MAX_PLAIN_LENGTH bytes has called
do_ssl3_write with "max" bytes, but next call to ssl3_write_bytes in
turn calls into do_ssl3_write with "max+1" bytes.
Change-Id: Icf8453195c1145a54d31b8e8146801118207df03
Reviewed-on: https://boringssl-review.googlesource.com/1420
Reviewed-by: Kenny Root <kroot@google.com>
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Avoid needing to manually increment the reference count and using the right
lock, both here and in Chromium.
Change-Id: If116ebc224cfb1c4711f7e2c06f1fd2c97af21dd
Reviewed-on: https://boringssl-review.googlesource.com/1415
Reviewed-by: Adam Langley <agl@google.com>
Reference counting should be internal to the type, otherwise callers need to
know which lock to use.
Change-Id: If4d805876a321ef6dece115c805e605584ff311e
Reviewed-on: https://boringssl-review.googlesource.com/1414
Reviewed-by: Adam Langley <agl@google.com>
Add a framework for testing the asynchronous codepath. Move some handshake
state machine coverage tests to cover a range of record-layer and
handshake-layer asynchronicity.
This adds tests for the previous two async bugs fixed.
Change-Id: I422ef33ba3eeb0ad04766871ed8bc59b677b169e
Reviewed-on: https://boringssl-review.googlesource.com/1410
Reviewed-by: Adam Langley <agl@google.com>
Any ssl3_get_* function that takes ownership of something before the
ssl_get_message call can't early-return without cleanup work.
This fixes valgrind on ClientAuth-Server-Async.
Change-Id: Ie7f0b37cac4d4bb7e06c00bae091fee0386c22da
Reviewed-on: https://boringssl-review.googlesource.com/1413
Reviewed-by: Adam Langley <agl@google.com>
- DTLS server code didn't account for the new ClientHello state. This looks
like it only matters if a DTLS server uses select_certificate_cb and returns
asynchronously.
- State A transitions immediately to B and is redundant. No code distinguishes
A and B.
- The ssl_get_message call transitions to the second state (originally C). This
makes the explicit transition to C a no-op. More of a problem,
ssl_get_message may return asynchronously and remain in its second state if the
handshake body had not completed yet. Fix this by splitting state C in two.
Combined with the above change, this results in only the top few states getting
reshuffled.
This fixes the server async tests.
Change-Id: I46703bcd205988b118217b6424ba4f88e731be5a
Reviewed-on: https://boringssl-review.googlesource.com/1412
Reviewed-by: Adam Langley <agl@google.com>
With the removal of the freelist itself, these macros are
superfluous. Remove them in favore of OPENSSL_malloc and OPENSSL_free.
Change-Id: I4bfeff8ea087b9e16c7c32d7c1bdb7a07e7dd03e
Reviewed-on: https://boringssl-review.googlesource.com/1389
Reviewed-by: Adam Langley <agl@google.com>
The memory freelist maintained by OpenSSL claims to be a performance
optimization for platforms that have a slow malloc/free
implementation. This should not be the case on modern
linux/glibc. Remove the freelist as it poses a potential security
hazard of buffer-reuse that is of "initialized" memory that will not
be caught be tools such as valgrind.
Change-Id: I3cfa6a05f9bdfbbba7820060bae5a673dee43014
Reviewed-on: https://boringssl-review.googlesource.com/1385
Reviewed-by: Adam Langley <agl@google.com>
The code guarded by PKCS1_CHECK appears to be unhelpful, and the guard
is explicitly undefined in ssl_locl.h Remove both.
Change-Id: I3cd45a744a8f35b02181b1e48fd1ef11af5e6f4a
Reviewed-on: https://boringssl-review.googlesource.com/1383
Reviewed-by: Adam Langley <agl@google.com>
Use it to test DHE-RSA in BoringSSL.
Change-Id: I88f7bfa76507a6f60234d61d494c9f94b7df4e0a
Reviewed-on: https://boringssl-review.googlesource.com/1377
Reviewed-by: Adam Langley <agl@google.com>
Default to the number of CPUs. Avoids the tests launching 64 valgrinds in
parallel on machines without gobs of memory.
Change-Id: I9eeb365b48aa7407e303d161f90ce69a591a884c
Reviewed-on: https://boringssl-review.googlesource.com/1375
Reviewed-by: Adam Langley <agl@google.com>
Assert that inappropriate fallbacks are detected, but if the client_version
matches the server's highest version, do not abort the handshake.
Change-Id: I9d72570bce45e1eb23fc2b74a3c5fca10562e573
Reviewed-on: https://boringssl-review.googlesource.com/1373
Reviewed-by: Adam Langley <agl@google.com>
Should have test coverage there as long as we care about supporting it.
Change-Id: Ic67539228b550f2ebd0b543d5a58640913b0474b
Reviewed-on: https://boringssl-review.googlesource.com/1371
Reviewed-by: Adam Langley <agl@google.com>
A modern TLS library without full support for TLS does not make sense.
Change-Id: I032537d1412f6e4effc9a2dd47123baf0084b4c6
Reviewed-on: https://boringssl-review.googlesource.com/1382
Reviewed-by: Adam Langley <agl@google.com>
OPENSSL_NO_CAMELLIA has already been effectively defined, including in
opensslfeatures.h. This commit removes the last ifdef-protected code
guarded by OPENSSL_NO_CAMELLIA.
Change-Id: I58dc79dbe7a77843a641d9216f40f1d7d63fcc40
Reviewed-on: https://boringssl-review.googlesource.com/1380
Reviewed-by: Adam Langley <agl@google.com>
It's not built. The problem is worked around by the padding extension now.
Change-Id: If577efdae57d1bca4e0a626486fc0502c3567ebb
Reviewed-on: https://boringssl-review.googlesource.com/1374
Reviewed-by: Adam Langley <agl@google.com>
This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.
On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h
In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.
In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.
Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>
Chromium is no longer using it.
Change-Id: If56340627d2024ff3fb8561405dd0cfc6f4787cb
Reviewed-on: https://boringssl-review.googlesource.com/1346
Reviewed-by: Adam Langley <agl@google.com>
Use same logic when determining when to expect a client certificate for
both TLS and DTLS.
PR#3452
(Imported from upstream's 666a597ffb9bcf3ba2d49e711fcca28df91eff9d)
Change-Id: Ia267255a32c0b3b9a7da1c53f13ef6f620ff5ec1