Commit Graph

43 Commits

Author SHA1 Message Date
David Benjamin
54091230cd Use C99 for size_t loops.
This was done just by grepping for 'size_t i;' and 'size_t j;'. I left
everything in crypto/x509 and friends alone.

There's some instances in gcm.c that are non-trivial and pulled into a
separate CL for ease of review.

Change-Id: I6515804e3097f7e90855f1e7610868ee87117223
Reviewed-on: https://boringssl-review.googlesource.com/10801
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-12 19:44:24 +00:00
Steven Valdez
84b5c003cc Serialize unresumable sessions to a placeholder value.
Change-Id: I676d7fb00d63d74946b96c22ae2705072033c5f7
Reviewed-on: https://boringssl-review.googlesource.com/10620
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-09-12 19:25:02 +00:00
Martin Kreichgauer
baafa4a653 Undo rename of tlsext_tick_lifetime_hint.
It was renamed to ticket_liftetime_hint in
1e6f11a7ff, which breaks Qt.

Change-Id: I9c6d3097fe96e669f06a4e0880bd4d7d82b03ba8
Reviewed-on: https://boringssl-review.googlesource.com/10181
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-09 17:50:28 +00:00
Steven Valdez
1e6f11a7ff Adding NewSessionTicket.
We will now send tickets as a server and accept them as a
client. Correctly offering and resuming them in the handshake will be
implemented in a follow-up.

Now that we're actually processing draft 14 tickets, bump the draft
version.

Change-Id: I304320a29c4ffe564fa9c00642a4ace96ff8d871
Reviewed-on: https://boringssl-review.googlesource.com/8982
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-08-03 20:03:20 +00:00
David Benjamin
7583643569 Disconnect handshake message creation from init_buf.
This allows us to use CBB for all handshake messages. Now, SSL_PROTOCOL_METHOD
is responsible for implementing a trio of CBB-related hooks to assemble
handshake messages.

Change-Id: I144d3cac4f05b6637bf45d3f838673fc5c854405
Reviewed-on: https://boringssl-review.googlesource.com/8440
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 22:15:01 +00:00
David Benjamin
af07365b49 Check for overflow when parsing a CBS with d2i_*.
Until we've done away with the d2i_* stack completely, boundaries need
to be mindful of the type mismatch. d2i_* takes a long, not a size_t.

Change-Id: If02f9ca2cfde02d0929ac18275d09bf5df400f3a
Reviewed-on: https://boringssl-review.googlesource.com/6491
Reviewed-by: Adam Langley <agl@google.com>
2015-11-16 23:17:42 +00:00
Adam Langley
96c2a28171 Fix all sign/unsigned warnings with Clang and GCC.
Change-Id: If2a83698236f7b0dcd46701ccd257a85463d6ce5
Reviewed-on: https://boringssl-review.googlesource.com/4992
Reviewed-by: Adam Langley <agl@google.com>
2015-10-27 22:48:00 +00:00
David Benjamin
7f393f72a5 Unexport SSL_SESSION_ASN1_VERSION.
It's pretty clearly pointless to put in the public header.

Change-Id: I9527aba09b618f957618e653c4f2ae379ddd0fdb
Reviewed-on: https://boringssl-review.googlesource.com/6293
Reviewed-by: Adam Langley <alangley@gmail.com>
2015-10-20 18:41:08 +00:00
David Benjamin
9e4e01ee14 Align the SSL stack on #include style.
ssl.h should be first. Also two lines after includes and the rest of the
file.

Change-Id: Icb7586e00a3e64170082c96cf3f8bfbb2b7e1611
Reviewed-on: https://boringssl-review.googlesource.com/5892
Reviewed-by: Adam Langley <agl@google.com>
2015-09-15 23:32:07 +00:00
David Benjamin
14e2b5070b const-correct a few SSL_SESSION functions.
Change-Id: I64d1e29d1e414add4ae522fd9603c550d426a557
Reviewed-on: https://boringssl-review.googlesource.com/5881
Reviewed-by: Adam Langley <agl@google.com>
2015-09-14 23:41:36 +00:00
David Benjamin
26416e9dde Remove the last of SESS_CERT.
Move cert_chain to the SSL_SESSION. Now everything on an SSL_SESSION is
properly serialized. The cert_chain field is, unfortunately, messed up
since it means different things between client and server.

There exists code which calls SSL_get_peer_cert_chain as both client and
server and assumes the existing semantics for each. Since that function
doesn't return a newly-allocated STACK_OF(X509), normalizing between the
two formats is a nuisance (we'd either need to store both cert_chain and
cert_chain_full on the SSL_SESSION or create one of the two variants
on-demand and stash it into the SSL).

This CL does not resolve this and retains the client/server difference
in SSL_SESSION. The SSL_SESSION serialization is a little inefficient
(two copies of the leaf certificate) for a client, but clients don't
typically serialize sessions. Should we wish to resolve it in the
future, we can use a different tag number. Because this was historically
unserialized, existing code must already allow for cert_chain not being
preserved across i2d/d2i.

In keeping with the semantics of retain_only_sha256_of_client_certs,
cert_chain is not retained when that flag is set.

Change-Id: Ieb72fc62c3076dd59750219e550902f1ad039651
Reviewed-on: https://boringssl-review.googlesource.com/5759
Reviewed-by: Adam Langley <agl@google.com>
2015-08-28 22:45:59 +00:00
David Benjamin
8be79a3355 Slightly refactor SSL_SESSION parsing.
Rather than parse the fields in two passes, group the code relating to
one field together. Somewhat less annoying to add new fields. To keep
this from getting too unwieldy, add a few more helper functions for the
common field types.

Change-Id: Ia86c6bbca9dd212d5c35029363ea4d6b6426164a
Reviewed-on: https://boringssl-review.googlesource.com/5758
Reviewed-by: Adam Langley <agl@google.com>
2015-08-28 22:18:17 +00:00
Sigbjorn Vik
2b23d24c38 Make key exchange strength available.
This change stores the size of the group/modulus (for RSA/DHE) or curve
ID (for ECDHE) in the |SSL_SESSION|. This makes it available for UIs
where desired.

Change-Id: I354141da432a08f71704c9683f298b361362483d
Reviewed-on: https://boringssl-review.googlesource.com/5280
Reviewed-by: Adam Langley <agl@google.com>
2015-08-18 22:09:27 +00:00
David Benjamin
3570d73bf1 Remove the func parameter to OPENSSL_PUT_ERROR.
Much of this was done automatically with
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+, ([a-zA-Z_0-9]+\);)/\1\2/'
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+,  ([a-zA-Z_0-9]+\);)/\1\2/'

BUG=468039

Change-Id: I4c75fd95dff85ab1d4a546b05e6aed1aeeb499d8
Reviewed-on: https://boringssl-review.googlesource.com/5276
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:37 +00:00
David Benjamin
a8653208ec Add CBB_zero to set a CBB to the zero state.
One tedious thing about using CBB is that you can't safely CBB_cleanup
until CBB_init is successful, which breaks the general 'goto err' style
of cleanup. This makes it possible:

  CBB_zero ~ EVP_MD_CTX_init
  CBB_init ~ EVP_DigestInit
  CBB_cleanup ~ EVP_MD_CTX_cleanup

Change-Id: I085ecc4405715368886dc4de02285a47e7fc4c52
Reviewed-on: https://boringssl-review.googlesource.com/5267
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:45:43 +00:00
David Benjamin
95d3182576 Duplicate SSL_SESSIONs when renewing them.
See also upstream's 27c76b9b8010b536687318739c6f631ce4194688, CVE-2015-1791.
Rather than write a dup function, serializing and deserializing the object is
simpler. It also fixes a bug in the original fix where it never calls
new_session_cb to store the new session (for clients which use that callback;
how clients should handle the session cache is much less clear).

The old session isn't pruned as we haven't processed the Finished message yet.
RFC 5077 says:

   The server MUST NOT assume that the client actually received the updated
   ticket until it successfully verifies the client's Finished message.

Moreover, because network messages are asynchronous, a new SSL connection may
have began just before the client received the new ticket, so any such servers
are broken regardless.

Change-Id: I13b3dc986dc58ea2ce66659dbb29e14cd02a641b
Reviewed-on: https://boringssl-review.googlesource.com/5122
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 18:15:12 +00:00
David Benjamin
fd67aa8c95 Add SSL_SESSION_from_bytes.
Mirrors SSL_SESSION_to_bytes. It avoids having to deal with object-reuse, the
non-size_t length parameter, and trailing data. Both it and the object-reuse
variant back onto an unexposed SSL_SESSION_parse which reads a CBS.

Note that this changes the object reuse story slightly. It's now merely an
optional output pointer that frees its old contents. No d2i_SSL_SESSION
consumer in Google that's built does reuse, much less reuse with the assumption
that the top-level object won't be overridden.

Change-Id: I5cb8522f96909bb222cab0f342423f2dd7814282
Reviewed-on: https://boringssl-review.googlesource.com/5121
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 18:12:39 +00:00
David Benjamin
a1c90a5ce1 Further tidy up cipher logic.
With SSL2 gone, there's no need for this split between the abstract
cipher framework and ciphers. Put the cipher suite table in ssl_cipher.c
and move other SSL_CIPHER logic there. With that gone, prune the
cipher-related hooks in SSL_PROTOCOL_METHOD.

BUG=468889

Change-Id: I48579de8bc4c0ea52781ba1b7b57bc5b4919d21c
Reviewed-on: https://boringssl-review.googlesource.com/4961
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 22:48:30 +00:00
David Benjamin
338e06771c Reject sessions with the wrong structure version.
The old upstream logic actually didn't do this, but 1.1.0's new code does.
Given that the version has never changed and even unknown fields were rejected
by the old code, this seems a safe and prudent thing to do.

Change-Id: I09071585e5183993b358c10ad36fc206f8bceeda
Reviewed-on: https://boringssl-review.googlesource.com/4942
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 20:30:02 +00:00
David Benjamin
f297e021f1 Reject unknown fields in d2i_SSL_SESSION.
The original OpenSSL implementation did the same. M_ASN1_D2I_Finish checks
this. Forwards compatibility with future sessions with unknown fields is
probably not desirable.

Change-Id: I116a8c482cbcc47c3fcc31515c4a3718f66cf268
Reviewed-on: https://boringssl-review.googlesource.com/4941
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 20:29:07 +00:00
David Benjamin
2755a3eda3 Remove unnecessary NULL checks, part 5.
Finally, the ssl stack.

Change-Id: Iea10e302825947da36ad46eaf3e8e2bce060fde2
Reviewed-on: https://boringssl-review.googlesource.com/4518
Reviewed-by: Adam Langley <agl@google.com>
2015-05-04 23:16:19 +00:00
Matt Braithwaite
7eaf4015fa (d2i_SSL_SESSION): Fix a memory leak that occurs on error.
Change-Id: I5424617f0b12937f092698d35a99316eb73a6c35
Reviewed-on: https://boringssl-review.googlesource.com/4390
Reviewed-by: Adam Langley <agl@google.com>
2015-04-17 17:39:38 +00:00
Brian Smith
054e682675 Eliminate unnecessary includes from low-level crypto modules.
Beyond generally eliminating unnecessary includes, eliminate as many
includes of headers that declare/define particularly error-prone
functionality like strlen, malloc, and free. crypto/err/internal.h was
added to remove the dependency on openssl/thread.h from the public
openssl/err.h header. The include of <stdlib.h> in openssl/mem.h was
retained since it defines OPENSSL_malloc and friends as macros around
the stdlib.h functions. The public x509.h, x509v3.h, and ssl.h headers
were not changed in order to minimize breakage of source compatibility
with external code.

Change-Id: I0d264b73ad0a720587774430b2ab8f8275960329
Reviewed-on: https://boringssl-review.googlesource.com/4220
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:49:18 +00:00
David Benjamin
2ee94aabf5 Rename ssl_locl.h to internal.h
Match the other internal headers.

Change-Id: Iff7e2dd06a1a7bf993053d0464cc15638ace3aaa
Reviewed-on: https://boringssl-review.googlesource.com/4280
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:14:09 +00:00
Håvard Molland
ab2479a08a Clean up error reporting.
Quite a few functions reported wrong function names when pushing
to the error stack.

Change-Id: I84d89dbefd2ecdc89ffb09799e673bae17be0e0f
Reviewed-on: https://boringssl-review.googlesource.com/4080
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-03-20 22:12:59 +00:00
David Benjamin
f3a8b12ac3 Remove SSL_SESSION::cipher_id.
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>
2015-01-14 21:10:55 +00:00
David Benjamin
688d8dfe48 Remove psk_identity_hint from SSL_SESSION.
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>
2014-11-10 23:59:47 +00:00
David Benjamin
3cac450af5 Add SSL_SESSION_to_bytes to replace i2d_SSL_SESSION.
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>
2014-10-28 19:02:59 +00:00
Piotr Sikora
773bb55c6f Fix build (broken by removal of key_arg from SSL_SESSION parsing).
This fixes error reported by clang:
unused variable 'kKeyArgTag' [-Werror,-Wunused-const-variable].

Change-Id: I1d5c9937064bfadd810cbe1b73e0070cc2ead684
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/2070
Reviewed-by: Adam Langley <agl@google.com>
2014-10-27 23:00:20 +00:00
David Benjamin
7001a7fce6 Don't bother accepting key_arg when parsing SSL_SESSION.
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>
2014-10-27 21:55:26 +00:00
Adam Langley
7571292eac Extended master secret support.
This change implements support for the extended master secret. See
https://tools.ietf.org/html/draft-ietf-tls-session-hash-01
https://secure-resumption.com/

Change-Id: Ifc7327763149ab0894b4f1d48cdc35e0f1093b93
Reviewed-on: https://boringssl-review.googlesource.com/1930
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-10-24 21:19:44 +00:00
David Benjamin
89abaea141 Reimplement i2d_SSL_SESSION using CBB.
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>
2014-10-24 18:30:09 +00:00
David Benjamin
83fd6b686f Reimplement d2i_SSL_SESSION with CBS.
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>
2014-10-24 18:26:41 +00:00
David Benjamin
d7a76e72c6 Remove key_arg and key_arg_length from SSL_SESSION.
Remnants of SSLv2 support.

Change-Id: If45035f1727f235e122121418770f75257b18026
Reviewed-on: https://boringssl-review.googlesource.com/1991
Reviewed-by: Adam Langley <agl@google.com>
2014-10-21 17:55:49 +00:00
David Benjamin
6c7aed048c Client-side OCSP stapling support.
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>
2014-08-29 00:39:33 +00:00
Håvard Molland
9169c96458 Implement client side of TLS signed certificate stamps extension.
https://crbug.com/389420 and 3.3 in rfc6962.

Change-Id: Ib22bcd4e4bde5a314ed33e123e19a76cdb714da4
Reviewed-on: https://boringssl-review.googlesource.com/1491
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2014-08-21 16:21:46 +00:00
Adam Langley
82b7da271f Set SSL_SESSION.cipher when parsing.
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
2014-08-14 09:42:46 -07:00
David Benjamin
ff175b4a46 unifdef OPENSSL_NO_PSK.
Get those out of the way.

Change-Id: I4cc8c34cf637379ad734c43623f76ae72f22014e
Reviewed-on: https://boringssl-review.googlesource.com/1282
Reviewed-by: Adam Langley <agl@google.com>
2014-07-24 21:11:05 +00:00
David Benjamin
6dbd73db5d Remove OPENSSL_NO_TLSEXT compilation option.
Mostly done with unifdef.

Change-Id: I876f79f9e96d77628d696b09694363d07aee6b74
Reviewed-on: https://boringssl-review.googlesource.com/1096
Reviewed-by: Adam Langley <agl@google.com>
2014-07-07 20:31:37 +00:00
Adam Langley
f77452c572 fix coverity issue 966597 - error line is not always initialised
(Imported from upstream's afe343c3a7077caeaad43a9f2ee7e5d7f70076e5)
2014-06-20 13:17:40 -07:00
Adam Langley
1258b6a756 ChannelID support.
Implement ChannelID as both a client and server.
2014-06-20 13:17:33 -07:00
Adam Langley
75872534c2 Optionally, retain only SHA-256 of client cert.
Adds an option to retain only the SHA256 of a client certificate in
memory and in the serialized session state.
2014-06-20 13:17:33 -07:00
Adam Langley
95c29f3cd1 Inital import.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).

(This change contains substantial changes from the original and
effectively starts a new history.)
2014-06-20 13:17:32 -07:00