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Commit Graph

817 Commits

Author SHA1 Message Date
Daniel Stenberg
6015cefb1b
openssl: make the requested TLS version the *minimum* wanted
The code treated the set version as the *exact* version to require in
the TLS handshake, which is not what other TLS backends do and probably
not what most people expect either.

Reported-by: Andreas Olsson
Assisted-by: Gaurav Malhotra
Fixes #2691
Closes #2694
2018-06-29 22:53:02 +02:00
Daniel Stenberg
08c845cfdb
openssl: allow TLS 1.3 by default
Reported-by: Andreas Olsson
Fixes #2692
Closes #2693
2018-06-29 09:15:34 +02:00
Daniel Stenberg
5ae22272d1
Curl_debug: remove dead printhost code
The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by: Tejas
Bug: https://curl.haxx.se/mail/lib-2018-06/0054.html
Closes #2647
2018-06-12 16:00:27 +02:00
Viktor Szakats
819f44dc07 schannel: avoid incompatible pointer warning
with clang-6.0:
```
vtls/schannel_verify.c: In function 'add_certs_to_store':
vtls/schannel_verify.c:212:30: warning: passing argument 11 of 'CryptQueryObject' from incompatible pointer type [-Wincompatible-pointer-types]
                              &cert_context)) {
                              ^
In file included from /usr/share/mingw-w64/include/schannel.h:10:0,
                 from /usr/share/mingw-w64/include/schnlsp.h:9,
                 from vtls/schannel.h:29,
                 from vtls/schannel_verify.c:40:
/usr/share/mingw-w64/include/wincrypt.h:4437:26: note: expected 'const void **' but argument is of type 'CERT_CONTEXT ** {aka struct _CERT_CONTEXT **}'
   WINIMPM WINBOOL WINAPI CryptQueryObject (DWORD dwObjectType, const void *pvObject, DWORD dwExpectedContentTypeFlags, DWORD dwExpectedFormatTypeFlags, DWORD dwFlags,
                          ^~~~~~~~~~~~~~~~
```
Ref: https://msdn.microsoft.com/library/windows/desktop/aa380264

Closes https://github.com/curl/curl/pull/2648
2018-06-12 11:23:11 +00:00
Robert Prag
9aefbff30d
schannel: support selecting ciphers
Given the contstraints of SChannel, I'm exposing these as the algorithms
themselves instead; while replicating the ciphersuite as specified by
OpenSSL would have been preferable, I found no way in the SChannel API
to do so.

To use this from the commandline, you need to pass the names of contants
defining the desired algorithms. For example, curl --ciphers
"CALG_SHA1:CALG_RSA_SIGN:CALG_RSA_KEYX:CALG_AES_128:CALG_DH_EPHEM"
https://github.com The specific names come from wincrypt.h

Closes #2630
2018-06-12 12:08:40 +02:00
Daniel Stenberg
38203f1585
openssl: assume engine support in 1.0.1 or later
Previously it was checked for in configure/cmake, but that would then
leave other build systems built without engine support.

While engine support probably existed prior to 1.0.1, I decided to play
safe. If someone experience a problem with this, we can widen the
version check.

Fixes #2641
Closes #2644
2018-06-11 10:20:18 +02:00
Gisle Vanem
274940d743
boringssl + schannel: undef X509_NAME in lib/schannel.h
Fixes the build problem when both boringssl and schannel are enabled.

Fixes #2634
Closes #2643
2018-06-08 23:25:17 +02:00
Daniel Stenberg
71c39f2965
axtls: follow-up spell fix of comment 2018-06-02 13:40:41 +02:00
Daniel Stenberg
9f89cd5ae4
axTLS: not considered fit for use
URL: https://curl.haxx.se/mail/lib-2018-06/0000.html

This is step one. It adds #error statements that require source edits to
make curl build again if asked to use axTLS. At a later stage we might
remove the axTLS specific code completely.

Closes #2628
2018-06-02 11:27:39 +02:00
Daniel Stenberg
050c93c46f
setopt: add TLS 1.3 ciphersuites
Adds CURLOPT_TLS13_CIPHERS and CURLOPT_PROXY_TLS13_CIPHERS.

curl: added --tls13-ciphers and --proxy-tls13-ciphers

Fixes #2435
Reported-by: zzq1015 on github
Closes #2607
2018-05-29 16:12:52 +02:00
ralcock
45eefbd0dd
schannel: add failf calls for client certificate failures
Closes #2604
2018-05-27 23:30:23 +02:00
Johannes Schindelin
aa0f41a5fc schannel: make CAinfo parsing resilient to CR/LF
OpenSSL has supported --cacert for ages, always accepting LF-only line
endings ("Unix line endings") as well as CR/LF line endings ("Windows
line endings").

When we introduced support for --cacert also with Secure Channel (or in
cURL speak: "WinSSL"), we did not take care to support CR/LF line
endings, too, even if we are much more likely to receive input in that
form when using Windows.

Let's fix that.

Happily, CryptQueryObject(), the function we use to parse the ca-bundle,
accepts CR/LF input already, and the trailing LF before the END
CERTIFICATE marker catches naturally any CR/LF line ending, too. So all
we need to care about is the BEGIN CERTIFICATE marker. We do not
actually need to verify here that the line ending is CR/LF. Just
checking for a CR or an LF is really plenty enough.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Closes https://github.com/curl/curl/pull/2592
2018-05-22 02:29:55 -04:00
Daniel Stenberg
cb529b713f
checksrc: make sure sizeof() is used *with* parentheses
... and unify the source code to adhere.

Closes #2563
2018-05-21 23:21:47 +02:00
Daniel Stenberg
c5fe86804c
openssl: acknowledge --tls-max for default version too
... previously it only used the max setting if a TLS version was also
explicitly asked for.

Reported-by: byte_bucket
Fixes #2571
Closes #2572
2018-05-17 13:34:47 +02:00
Daniel Stenberg
f0c466dced
schannel_verify: fix build for non-schannel 2018-05-16 10:12:57 +02:00
Jay Satiro
4584cc4499 schannel: disable manual verify if APIs not available
.. because original MinGW and old compilers do not have the Windows API
definitions needed to support manual verification.
2018-05-16 02:21:05 -04:00
Archangel_SDY
1592ea9792 schannel: disable client cert option if APIs not available
Original MinGW targets Windows 2000 by default, which lacks some APIs and
definitions for this feature. Disable it if these APIs are not available.

Closes https://github.com/curl/curl/pull/2522
2018-05-16 02:21:04 -04:00
Rikard Falkeborn
eb49683e55
lib: Fix format specifiers 2018-05-14 09:42:27 +02:00
Sunny Purushe
18cbbb702c openssl: change FILE ops to BIO ops
To make builds with VS2015 work. Recent changes in VS2015 _IOB_ENTRIES
handling is causing problems. This fix changes the OpenSSL backend code
to use BIO functions instead of FILE I/O functions to circumvent those
problems.

Closes #2512
2018-05-10 16:30:32 +02:00
Daniel Stenberg
babd55e25f
vtls: fix missing commas
follow-up to e66cca046c
2018-05-04 23:02:57 +02:00
Daniel Stenberg
e66cca046c
vtls: use unified "supports" bitfield member in backends
... instead of previous separate struct fields, to make it easier to
extend and change individual backends without having to modify them all.

closes #2547
2018-05-04 22:31:19 +02:00
Daniel Stenberg
1621aed9be
vtls: don't define MD5_DIGEST_LENGTH for wolfssl
... as it defines it (too)
2018-05-02 11:21:48 +02:00
David Garske
b2e59a886b wolfssl: Fix non-blocking connect
Closes https://github.com/curl/curl/pull/2542
2018-05-02 03:01:54 -04:00
Daniel Gustafsson
2f13e3d23d
checksrc: force indentation of lines after an else
This extends the INDENTATION case to also handle 'else' statements
and require proper indentation on the following line. Also fixes the
offending cases found in the codebase.

Closes #2532
2018-04-27 00:51:35 +02:00
Daniel Stenberg
3b41839e2e
cyassl: adapt to libraries without TLS 1.0 support built-in
WolfSSL doesn't enable it by default anymore
2018-04-26 07:57:19 +02:00
Christian Schmitz
d0394de152
curl_global_sslset: always provide available backends
Closes #2499
2018-04-23 14:18:55 +02:00
Archangel_SDY
ab988caef6 schannel: fix build error on targets <= XP
- Use CRYPT_STRING_HEX instead of CRYPT_STRING_HEXRAW since XP doesn't
  support the latter.

Ref: https://github.com/curl/curl/pull/2376#issuecomment-382153668

Closes https://github.com/curl/curl/pull/2504
2018-04-23 03:16:49 -04:00
Stephan Mühlstrasser
b0a50227c0
openssl: fix subjectAltName check on non-ASCII platforms
Curl_cert_hostcheck operates with the host character set, therefore the
ASCII subjectAltName string retrieved with OpenSSL must be converted to
the host encoding before comparison.

Closes #2493
2018-04-20 16:55:31 +02:00
Jay Satiro
a3f385393a openssl: Add support for OpenSSL 1.1.1 verbose-mode trace messages
- Support handling verbose-mode trace messages of type
  SSL3_RT_INNER_CONTENT_TYPE, SSL3_MT_ENCRYPTED_EXTENSIONS,
  SSL3_MT_END_OF_EARLY_DATA, SSL3_MT_KEY_UPDATE, SSL3_MT_NEXT_PROTO,
  SSL3_MT_MESSAGE_HASH

Reported-by: iz8mbw@users.noreply.github.com

Fixes https://github.com/curl/curl/issues/2403
2018-04-20 01:28:32 -04:00
Dan McNulty
8996300211 schannel: add support for CURLOPT_CAINFO
- Move verify_certificate functionality in schannel.c into a new
  file called schannel_verify.c. Additionally, some structure defintions
  from schannel.c have been moved to schannel.h to allow them to be
  used in schannel_verify.c.

- Make verify_certificate functionality for Schannel available on
  all versions of Windows instead of just Windows CE. verify_certificate
  will be invoked on Windows CE or when the user specifies
  CURLOPT_CAINFO and CURLOPT_SSL_VERIFYPEER.

- In verify_certificate, create a custom certificate chain engine that
  exclusively trusts the certificate store backed by the CURLOPT_CAINFO
  file.

- doc updates of --cacert/CAINFO support for schannel

- Use CERT_NAME_SEARCH_ALL_NAMES_FLAG when invoking CertGetNameString
  when available. This implements a TODO in schannel.c to improve
  handling of multiple SANs in a certificate. In particular, all SANs
  will now be searched instead of just the first name.

- Update tool_operate.c to not search for the curl-ca-bundle.crt file
  when using Schannel to maintain backward compatibility. Previously,
  any curl-ca-bundle.crt file found in that search would have been
  ignored by Schannel. But, with CAINFO support, the file found by
  that search would have been used as the certificate store and
  could cause issues for any users that have curl-ca-bundle.crt in
  the search path.

- Update url.c to not set the build time CURL_CA_BUNDLE if the selected
  SSL backend is Schannel. We allow setting CA location for schannel
  only when explicitly specified by the user via CURLOPT_CAINFO /
  --cacert.

- Add new test cases 3000 and 3001. These test cases check that the first
  and last SAN, respectively, matches the connection hostname. New test
  certificates have been added for these cases. For 3000, the certificate
  prefix is Server-localhost-firstSAN and for 3001, the certificate
  prefix is Server-localhost-secondSAN.

- Remove TODO 15.2 (Add support for custom server certificate
  validation), this commit addresses it.

Closes https://github.com/curl/curl/pull/1325
2018-04-18 03:59:47 -04:00
Jay Satiro
4d660fdcb0 schannel: fix warning
- Fix warning 'integer from pointer without a cast' on 3rd arg in
  CertOpenStore. The arg type HCRYPTPROV may be a pointer or integer
  type of the same size.

Follow-up to e35b025.

Caught by Marc's CI builds.
2018-04-17 15:43:30 -04:00
Archangel_SDY
e35b0256eb
schannel: add client certificate authentication
Users can now specify a client certificate in system certificates store
explicitly using expression like `--cert "CurrentUser\MY\<thumbprint>"`

Closes #2376
2018-04-17 00:23:01 +02:00
Daniel Gustafsson
94400f32e9 all: Refactor malloc+memset to use calloc
When a zeroed out allocation is required, use calloc() rather than
malloc() followed by an explicit memset(). The result will be the
same, but using calloc() everywhere increases consistency in the
codebase and avoids the risk of subtle bugs when code is injected
between malloc and memset by accident.

Closes https://github.com/curl/curl/pull/2497
2018-04-15 03:00:37 -04:00
Daniel Stenberg
dc1b6c5a00
build: cleanup to fix clang warnings/errors
unit1309 and vtls/gtls: error: arithmetic on a null pointer treated as a
cast from integer to pointer is a GNU extension

Reported-by: Rikard Falkeborn

Fixes #2466
Closes #2468
2018-04-08 13:59:30 +02:00
Gaurav Malhotra
2536e2450b
Revert "openssl: Don't add verify locations when verifypeer==0"
This reverts commit dc85437736.

libcurl (with the OpenSSL backend) performs server certificate verification
even if verifypeer == 0 and the verification result is available using
CURLINFO_SSL_VERIFYRESULT. The commit that is being reverted caused the
CURLINFO_SSL_VERIFYRESULT to not have useful information for the
verifypeer == 0 use case (it would always have
X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY).

Closes #2451
2018-04-06 14:25:00 +02:00
Wyatt O'Day
336b6a32c0
tls: fix mbedTLS 2.7.0 build + handle sha256 failures
(mbedtls 2.70 compiled with MBEDTLS_DEPRECATED_REMOVED)

Closes #2453
2018-04-06 14:21:50 +02:00
Daniel Stenberg
256b80fe81
openssl: provide defines for argument typecasts to build warning-free
... as OpenSSL >= 1.1.0 and libressl >= 2.7.0 use different argument types.
2018-04-04 13:24:36 +02:00
Bernard Spil
7c90c93c0b
openssl: fix build with LibreSSL 2.7
- LibreSSL 2.7 implements (most of) OpenSSL 1.1 API

Fixes #2319
Closes #2447
Closes #2448

Signed-off-by: Bernard Spil <brnrd@FreeBSD.org>
2018-04-04 11:24:51 +02:00
Chris Araman
b7b2809a21 darwinssl: fix iOS build 2018-03-18 10:57:04 +01:00
luz.paz
236402fc2d
cleanup: misc typos in strings and comments
Found via `codespell`

Closes #2389
2018-03-16 11:08:31 +01:00
sergii.kavunenko
613ccbf26c
WolfSSL: adding TLSv1.3
Closes #2349
2018-03-05 00:02:34 +01:00
Marcel Raad
24753bcd48
unit1309: fix warning on Windows x64
When targeting x64, MinGW-w64 complains about conversions between
32-bit long and 64-bit pointers. Fix this by reusing the
GNUTLS_POINTER_TO_SOCKET_CAST / GNUTLS_SOCKET_TO_POINTER_CAST logic
from gtls.c, moving it to warnless.h as CURLX_POINTER_TO_INTEGER_CAST /
CURLX_INTEGER_TO_POINTER_CAST.

Closes https://github.com/curl/curl/pull/2341
2018-02-28 20:04:48 +01:00
Kamil Dudka
1605d93a7b nss: use PK11_CreateManagedGenericObject() if available
... so that the memory allocated by applications using libcurl does not
grow per each TLS connection.

Bug: https://bugzilla.redhat.com/1510247

Closes #2297
2018-02-15 10:18:34 +01:00
Michael Kaufmann
1c680e35ab schannel: fix "no previous prototype" compiler warning 2018-02-09 20:10:25 +01:00
Michael Kaufmann
a64b002e3a schannel: fix compiler warnings
Closes #2296
2018-02-08 22:31:45 +01:00
Patrick Schlangen
dc85437736
openssl: Don't add verify locations when verifypeer==0
When peer verification is disabled, calling
SSL_CTX_load_verify_locations is not necessary. Only call it when
verification is enabled to save resources and increase performance.

Closes #2290
2018-02-06 10:48:03 +01:00
5c497343d9
GSKit: restore pinnedpubkey functionality
inadvertently removed in 283babfaf8

Closes #2263
2018-01-25 23:16:14 +01:00
Dair Grant
f8475c6941
darwinssl: Don't import client certificates into Keychain on macOS
Closes #2085
2018-01-25 23:13:35 +01:00
McDonough, Tim
1433e4645b
openssl: fix pinned public key build error in FIPS mode
Here is a version that should work with all versions of openssl 0.9.7
through 1.1.0.

Links to the docs:
https://www.openssl.org/docs/man1.0.2/crypto/EVP_DigestInit.html
https://www.openssl.org/docs/man1.1.0/crypto/EVP_DigestInit.html

At the very bottom of the 1.1.0 documentation there is a history section
that states, " stack allocated EVP_MD_CTXs are no longer supported."

If EVP_MD_CTX_create and EVP_MD_CTX_destroy are not defined, then a
simple mapping can be used as described here:
https://wiki.openssl.org/index.php/Talk:OpenSSL_1.1.0_Changes

Closes #2258
2018-01-25 22:16:24 +01:00
1c00519499
SChannel/WinSSL: Replace Curl_none_md5sum with Curl_schannel_md5sum 2018-01-25 22:14:40 +01:00
e178fbd40a
SChannel/WinSSL: Implement public key pinning
Closes #1429
2018-01-25 22:14:39 +01:00
Daniel Stenberg
9e4ad1e2af
openssl: fix potential memory leak in SSLKEYLOGFILE logic
Coverity CID 1427646.
2018-01-18 12:10:58 +01:00
Daniel Stenberg
ca9c93e3e1
openssl: fix the libressl build again
Follow-up to 84fcaa2e7. libressl does not have the API even if it says it is
late OpenSSL version...

Fixes #2246
Closes #2247

Reported-by: jungle-boogie on github
2018-01-18 09:07:23 +01:00
Daniel Stenberg
84fcaa2e73
openssl: enable SSLKEYLOGFILE support by default
Fixes #2210
Closes #2236
2018-01-15 10:33:08 +01:00
Jay Satiro
908a9a6742 build: remove HAVE_LIMITS_H check
.. because limits.h presence isn't optional, it's required by C89.

Ref: http://port70.net/~nsz/c/c89/c89-draft.html#2.2.4.2

Closes https://github.com/curl/curl/pull/2215
2018-01-05 23:34:30 -05:00
Jay Satiro
129390a518 openssl: fix memory leak of SSLKEYLOGFILE filename
- Free the copy of SSLKEYLOGFILE env returned by curl_getenv during ossl
  initialization.

Caught by ASAN.
2018-01-03 15:22:41 -05:00
dmitrykos
2437dbbf12
vtls: replaced getenv() with curl_getenv()
Fixed undefined symbol of getenv() which does not exist when compiling
for Windows 10 App (CURL_WINDOWS_APP). Replaced getenv() with
curl_getenv() which is aware of getenv() absence when CURL_WINDOWS_APP
is defined.

Closes #2171
2017-12-12 08:02:07 +01:00
Jay Satiro
7ab4e7adb9 openssl: Disable file buffering for Win32 SSLKEYLOGFILE
Prior to this change SSLKEYLOGFILE used line buffering on WIN32 just
like it does for other platforms. However, the Windows CRT does not
actually support line buffering (_IOLBF) and will use full buffering
(_IOFBF) instead. We can't use full buffering because multiple processes
may be writing to the file and that could lead to corruption, and since
full buffering is the only buffering available this commit disables
buffering for Windows SSLKEYLOGFILE entirely (_IONBF).

Ref: https://github.com/curl/curl/pull/1346#issuecomment-350530901
2017-12-10 02:48:41 -05:00
Jay Satiro
9dfb194833 openssl: improve data-pending check for https proxy
- Allow proxy_ssl to be checked for pending data even when connssl does
  not yet have an SSL handle.

This change is for posterity. Currently there doesn't seem to be a code
path that will cause a pending data check when proxyssl could have
pending data and the connssl handle doesn't yet exist [1].

[1]: Recall that an https proxy connection starts out in connssl but if
the destination is also https then the proxy SSL backend data is moved
from connssl to proxyssl, which means connssl handle is temporarily
empty until an SSL handle for the destination can be created.

Ref: https://github.com/curl/curl/commit/f4a6238#commitcomment-24396542

Closes https://github.com/curl/curl/pull/1916
2017-12-08 17:43:36 -05:00
Daniel Stenberg
10bb0b4719
openssl: pkcs12 is supported by boringssl
Removes another #ifdef for BoringSSL

Pointed-out-by: David Benjamin

Closes #2134
2017-12-02 11:55:01 +01:00
Daniel Stenberg
cd276c3cca
openssl: fix boringssl build again
commit d3ab7c5a21 broke the boringssl build since it doesn't have
RSA_flags(), so we disable that code block for boringssl builds.

Reported-by: W. Mark Kubacki
Fixes #2117
2017-11-27 19:39:09 +01:00
Daniel Stenberg
3d97e37441
openssl: fix "Value stored to 'rc' is never read" scan-build error 2017-11-21 09:02:40 +01:00
Dirk Feytons
d3ab7c5a21
openssl: fix too broad use of HAVE_OPAQUE_EVP_PKEY
Fixes #2079
Closes #2081
2017-11-15 11:09:21 +01:00
Daniel Stenberg
5d543fe906 time: rename Curl_tvnow to Curl_now
... since the 'tv' stood for timeval and this function does not return a
timeval struct anymore.

Also, cleaned up the Curl_timediff*() functions to avoid typecasts and
clean up the descriptive comments.

Closes #2011
2017-10-25 18:48:05 +02:00
Daniel Stenberg
b9d25f9a6b timediff: return timediff_t from the time diff functions
... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

- Added overflow protection for both of them in either direction for
  both 32 bit and 64 bit time_ts

- Reprefixed the curlx_time functions to use Curl_*

Reported-by: Peter Piekarski
Fixes #2004
Closes #2005
2017-10-25 09:54:37 +02:00
Patrick Monnerat
8aee8a6a2d vtls: change struct Curl_ssl close' field name to close_one'.
On OS/400, `close' is an ASCII system macro that corrupts the code if
not used in a context not targetting the close() system API.
2017-10-19 19:55:17 +01:00
David Benjamin
de7597f155
openssl: don't use old BORINGSSL_YYYYMM macros
Those were temporary things we'd add and remove for our own convenience
long ago. The last few stayed around for too long as an oversight but
have since been removed. These days we have a running
BORINGSSL_API_VERSION counter which is bumped when we find it
convenient, but 2015-11-19 was quite some time ago, so just check
OPENSSL_IS_BORINGSSL.

Closes #1979
2017-10-11 08:12:19 +02:00
Daniel Stenberg
62a721ea47
openssl: enable PKCS12 support for !BoringSSL
Enable PKCS12 for all non-boringssl builds without relying on configure
or cmake checks.

Bug: https://curl.haxx.se/mail/lib-2017-10/0007.html
Reported-by: Christian Schmitz
Closes #1948
2017-10-09 11:29:53 +02:00
Marcel Raad
202189ff2c
vtls: fix warnings with --disable-crypto-auth
When CURL_DISABLE_CRYPTO_AUTH is defined, Curl_none_md5sum's parameters
are not used.
2017-10-06 19:01:19 +02:00
Daniel Stenberg
2dcc378381
openssl: fix build without HAVE_OPAQUE_EVP_PKEY
Reported-by: Javier Sixto
Fixes #1955
Closes #1956
2017-10-06 14:42:40 +02:00
Daniel Stenberg
7bc5308db3
build: fix --disable-crypto-auth
Reported-by: Wyatt O'Day
Fixes #1945
Closes #1947
2017-10-05 14:06:23 +02:00
Nick Zitzmann
3e492e03b3 darwinssl: add support for TLSv1.3
Closes https://github.com/curl/curl/pull/1794
2017-10-05 00:51:38 -04:00
Michael Kaufmann
9d3dde37a8 vtls: compare and clone ssl configs properly
Compare these settings in Curl_ssl_config_matches():
- verifystatus (CURLOPT_SSL_VERIFYSTATUS)
- random_file (CURLOPT_RANDOM_FILE)
- egdsocket (CURLOPT_EGDSOCKET)

Also copy the setting "verifystatus" in Curl_clone_primary_ssl_config(),
and copy the setting "sessionid" unconditionally.

This means that reusing connections that are secured with a client
certificate is now possible, and the statement "TLS session resumption
is disabled when a client certificate is used" in the old advisory at
https://curl.haxx.se/docs/adv_20170419.html is obsolete.

Reviewed-by: Daniel Stenberg

Closes #1917
2017-10-03 18:08:50 +02:00
Jay Satiro
953b5c4e26 ntlm: move NTLM_NEEDS_NSS_INIT define into core NTLM header
.. and include the core NTLM header in all NTLM-related source files.

Follow up to 6f86022. Since then http_ntlm checks NTLM_NEEDS_NSS_INIT
but did not include vtls.h where it was defined.

Closes https://github.com/curl/curl/pull/1911
2017-09-23 13:58:14 -04:00
Viktor Szakats
6f86022df2 ntlm: use strict order for SSL backend #if branches
With the recently introduced MultiSSL support multiple SSL backends
can be compiled into cURL That means that now the order of the SSL

One option would be to use the same SSL backend as was configured
via `curl_global_sslset()`, however, NTLMv2 support would appear
to be available only with some SSL backends. For example, when
eb88d778e (ntlm: Use Windows Crypt API, 2014-12-02) introduced
support for NTLMv1 using Windows' Crypt API, it specifically did
*not* introduce NTLMv2 support using Crypt API at the same time.

So let's select one specific SSL backend for NTLM support when
compiled with multiple SSL backends, using a priority order such
that we support NTLMv2 even if only one compiled-in SSL backend can
be used for that.

Ref: https://github.com/curl/curl/pull/1848
2017-09-22 19:01:28 +00:00
Daniel Stenberg
b8e0fe19ec
vtls: provide curl_global_sslset() even in non-SSL builds
... it just returns error:

Bug: 1328f69d53 (commitcomment-24470367)
Reported-by: Marcel Raad

Closes #1906
2017-09-22 12:09:13 +02:00
Dirk Feytons
fa9482ab09
openssl: only verify RSA private key if supported
In some cases the RSA key does not support verifying it because it's
located on a smart card, an engine wants to hide it, ...
Check the flags on the key before trying to verify it.
OpenSSL does the same thing internally; see ssl/ssl_rsa.c

Closes #1904
2017-09-21 20:17:06 +02:00
Marc Aldorasi
c8666089c8 schannel: Support partial send for when data is too large
Schannel can only encrypt a certain amount of data at once.  Instead of
failing when too much data is to be sent at once, send as much data as
we can and let the caller send the remaining data by calling send again.

Bug: https://curl.haxx.se/mail/lib-2014-07/0033.html

Closes https://github.com/curl/curl/pull/1890
2017-09-16 03:19:35 -04:00
David Benjamin
843200c5b9 openssl: add missing includes
lib/vtls/openssl.c uses OpenSSL APIs from BUF_MEM and BIO APIs. Include
their headers directly rather than relying on other OpenSSL headers
including things.

Closes https://github.com/curl/curl/pull/1891
2017-09-16 03:11:18 -04:00
Daniel Stenberg
93843c372f
conversions: fix several compiler warnings 2017-09-15 16:58:35 +02:00
Daniel Stenberg
e5743f08e7
code style: use spaces around pluses 2017-09-11 09:29:50 +02:00
Daniel Stenberg
6b84438d9a
code style: use spaces around equals signs 2017-09-11 09:29:50 +02:00
Jay Satiro
64bb7ae6ae mbedtls: enable CA path processing
CA path processing was implemented when mbedtls.c was added to libcurl
in fe7590f, but it was never enabled.

Bug: https://github.com/curl/curl/issues/1877
Reported-by: SBKarr@users.noreply.github.com
2017-09-10 03:22:05 -04:00
Johannes Schindelin
f4a623825b
OpenSSL: fix yet another mistake while encapsulating SSL backend data
Another mistake in my manual fixups of the largely mechanical
search-and-replace ("connssl->" -> "BACKEND->"), just like the previous
commit concerning HTTPS proxies (and hence not caught during my
earlier testing).

Fixes #1855
Closes #1871

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-09-07 16:08:24 +02:00
Johannes Schindelin
dde4f5c81a
OpenSSL: fix erroneous SSL backend encapsulation
In d65e6cc4f (vtls: prepare the SSL backends for encapsulated private
data, 2017-06-21), this developer prepared for a separation of the
private data of the SSL backends from the general connection data.

This conversion was partially automated (search-and-replace) and
partially manual (e.g. proxy_ssl's backend data).

Sadly, there was a crucial error in the manual part, where the wrong
handle was used: rather than connecting ssl[sockindex]' BIO to the
proxy_ssl[sockindex]', we reconnected proxy_ssl[sockindex]. The reason
was an incorrect location to paste "BACKEND->"... d'oh.

Reported by Jay Satiro in https://github.com/curl/curl/issues/1855.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-09-07 16:06:50 +02:00
Jay Satiro
955c21939e
vtls: fix memory corruption
Ever since 70f1db321 (vtls: encapsulate SSL backend-specific data,
2017-07-28), the code handling HTTPS proxies was broken because the
pointer to the SSL backend data was not swapped between
conn->ssl[sockindex] and conn->proxy_ssl[sockindex] as intended, but
instead set to NULL (causing segmentation faults).

[jes: provided the commit message, tested and verified the patch]

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-09-07 16:06:50 +02:00
Daniel Stenberg
4bb80d532e
vtls: switch to CURL_SHA256_DIGEST_LENGTH define
... instead of the prefix-less version since WolfSSL 3.12 now uses an
enum with that name that causes build failures for us.

Fixes #1865
Closes #1867
Reported-by: Gisle Vanem
2017-09-07 15:59:42 +02:00
Jay Satiro
70a69f3718 SSL: fix unused parameter warnings 2017-09-06 15:11:55 -04:00
Gisle Vanem
61825be02b vtls: select ssl backend case-insensitive (follow-up)
- Do a case-insensitive comparison of CURL_SSL_BACKEND env as well.

- Change Curl_strcasecompare calls to strcasecompare
  (maps to the former but shorter).

Follow-up to c290b8f.

Bug: https://github.com/curl/curl/commit/c290b8f#commitcomment-24094313

Co-authored-by: Jay Satiro
2017-09-06 02:27:33 -04:00
Jay Satiro
6cdba64e13 openssl: Integrate Peter Wu's SSLKEYLOGFILE implementation
This is an adaptation of 2 of Peter Wu's SSLKEYLOGFILE implementations.

The first one, written for old OpenSSL versions:
https://git.lekensteyn.nl/peter/wireshark-notes/tree/src/sslkeylog.c

The second one, written for BoringSSL and new OpenSSL versions:
https://github.com/curl/curl/pull/1346

Note the first one is GPL licensed but the author gave permission to
waive that license for libcurl.

As of right now this feature is disabled by default, and does not have
a configure option to enable it. To enable this feature define
ENABLE_SSLKEYLOGFILE when building libcurl and set environment
variable SSLKEYLOGFILE to a pathname that will receive the keys.

And in Wireshark change your preferences to point to that key file:
Edit > Preferences > Protocols > SSL > Master-Secret

Co-authored-by: Peter Wu

Ref: https://github.com/curl/curl/pull/1030
Ref: https://github.com/curl/curl/pull/1346

Closes https://github.com/curl/curl/pull/1866
2017-09-05 23:56:54 -04:00
Kamil Dudka
ea142a837e openssl: use OpenSSL's default ciphers by default
Up2date versions of OpenSSL maintain the default reasonably secure
without breaking compatibility, so it is better not to override the
default by curl.  Suggested at https://bugzilla.redhat.com/1483972

Closes #1846
2017-09-05 12:13:38 +02:00
Daniel Stenberg
202c1cc22f
schannel: return CURLE_SSL_CACERT on failed verification
... not *CACERT_BADFILE as it isn't really because of a bad file.

Bug: https://curl.haxx.se/mail/lib-2017-09/0002.html
Closes #1858
2017-09-04 11:48:38 +02:00
Daniel Stenberg
c290b8fb23
curl_global_sslset: select backend by name case insensitively
Closes #1849
2017-09-01 11:51:32 +02:00
Jay Satiro
aa2ea66cda darwinssl: handle long strings in TLS certs (follow-up)
- Fix handling certificate subjects that are already UTF-8 encoded.

Follow-up to b3b75d1 from two days ago. Since then a copy would be
skipped if the subject was already UTF-8, possibly resulting in a NULL
deref later on.

Ref: https://github.com/curl/curl/issues/1823
Ref: https://github.com/curl/curl/pull/1831

Closes https://github.com/curl/curl/pull/1836
2017-08-31 02:37:35 -04:00
Daniel Stenberg
410bf6b7b1
cyassl: call it the "WolfSSL" backend
... instead of cyassl, as this is the current name for it.

Closes #1844
2017-08-31 00:55:36 +02:00
Daniel Stenberg
5734f73f0d
polarssl: fix multissl breakage
Reported-by: Dan Fandrich
Bug: https://curl.haxx.se/mail/lib-2017-08/0121.html
Closes #1843
2017-08-31 00:53:05 +02:00
Johannes Schindelin
c7170e20d0
configure: allow setting the default SSL backend
Previously, we used as default SSL backend whatever was first in the
`available_backends` array.

However, some users may want to override that default without patching
the source code.

Now they can: with the --with-default-ssl-backend=<backend> option of
the ./configure script.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 22:56:50 +02:00
Johannes Schindelin
3063254e32
vtls: use Curl_ssl_multi pseudo backend only when needed
When only one SSL backend is configured, it is totally unnecessary to
let multissl_init() configure the backend at runtime, we can select the
correct backend at build time already.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 22:56:49 +02:00
Johannes Schindelin
81d318fa95
version: if built with more than one SSL backend, report all of them
To discern the active one from the inactive ones, put the latter into
parentheses.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 22:56:49 +02:00
Johannes Schindelin
1328f69d53
vtls: introduce curl_global_sslset()
Let's add a compile time safe API to select an SSL backend. This
function needs to be called *before* curl_global_init(), and can be
called only once.

Side note: we do not explicitly test that it is called before
curl_global_init(), but we do verify that it is not called multiple times
(even implicitly).

If SSL is used before the function was called, it will use whatever the
CURL_SSL_BACKEND environment variable says (or default to the first
available SSL backend), and if a subsequent call to
curl_global_sslset() disagrees with the previous choice, it will fail
with CURLSSLSET_TOO_LATE.

The function also accepts an "avail" parameter to point to a (read-only)
NULL-terminated list of available backends. This comes in real handy if
an application wants to let the user choose between whatever SSL backends
the currently available libcurl has to offer: simply call

	curl_global_sslset(-1, NULL, &avail);

which will return CURLSSLSET_UNKNOWN_BACKEND and populate the avail
variable to point to the relevant information to present to the user.

Just like with the HTTP/2 push functions, we have to add the function
declaration of curl_global_sslset() function to the header file
*multi.h* because VMS and OS/400 require a stable order of functions
declared in include/curl/*.h (where the header files are sorted
alphabetically). This looks a bit funny, but it cannot be helped.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:59 +02:00
Johannes Schindelin
b59288f881
vtls: refactor out essential information about the SSL backends
There is information about the compiled-in SSL backends that is really
no concern of any code other than the SSL backend itself, such as which
function (if any) implements SHA-256 summing.

And there is information that is really interesting to the user, such as
the name, or the curl_sslbackend value.

Let's factor out the latter into a publicly visible struct. This
information will be used in the upcoming API to set the SSL backend
globally.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
b0989cd3ab
vtls: allow selecting which SSL backend to use at runtime
When building software for the masses, it is sometimes not possible to
decide for all users which SSL backend is appropriate.

Git for Windows, for example,  uses cURL to perform clones, fetches and
pushes via HTTPS, and some users strongly prefer OpenSSL, while other
users really need to use Secure Channel because it offers
enterprise-ready tools to manage credentials via Windows' Credential
Store.

The current Git for Windows versions use the ugly work-around of
building libcurl once with OpenSSL support and once with Secure Channel
support, and switching out the binaries in the installer depending on
the user's choice.

Needless to say, this is a super ugly workaround that actually only
works in some cases: Git for Windows also comes in a portable form, and
in a form intended for third-party applications requiring Git
functionality, in which cases this "swap out libcurl-4.dll" simply is
not an option.

Therefore, the Git for Windows project has a vested interest in teaching
cURL to make the SSL backend a *runtime* option.

This patch makes that possible.

By running ./configure with multiple --with-<backend> options, cURL will
be built with multiple backends.

For the moment, the backend can be configured using the environment
variable CURL_SSL_BACKEND (valid values are e.g. "openssl" and
"schannel").

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
a53bda35e9
vtls: fold the backend ID into the Curl_ssl structure
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
70f1db321a
vtls: encapsulate SSL backend-specific data
So far, all of the SSL backends' private data has been declared as
part of the ssl_connect_data struct, in one big #if .. #elif .. #endif
block.

This can only work as long as the SSL backend is a compile-time option,
something we want to change in the next commits.

Therefore, let's encapsulate the exact data needed by each SSL backend
into a private struct, and let's avoid bleeding any SSL backend-specific
information into urldata.h. This is also necessary to allow multiple SSL
backends to be compiled in at the same time, as e.g. OpenSSL's and
CyaSSL's headers cannot be included in the same .c file.

To avoid too many malloc() calls, we simply append the private structs
to the connectdata struct in allocate_conn().

This requires us to take extra care of alignment issues: struct fields
often need to be aligned on certain boundaries e.g. 32-bit values need to
be stored at addresses that divide evenly by 4 (= 32 bit / 8
bit-per-byte).

We do that by assuming that no SSL backend's private data contains any
fields that need to be aligned on boundaries larger than `long long`
(typically 64-bit) would need. Under this assumption, we simply add a
dummy field of type `long long` to the `struct connectdata` struct. This
field will never be accessed but acts as a placeholder for the four
instances of ssl_backend_data instead. the size of each ssl_backend_data
struct is stored in the SSL backend-specific metadata, to allow
allocate_conn() to know how much extra space to allocate, and how to
initialize the ssl[sockindex]->backend and proxy_ssl[sockindex]->backend
pointers.

This would appear to be a little complicated at first, but is really
necessary to encapsulate the private data of each SSL backend correctly.
And we need to encapsulate thusly if we ever want to allow selecting
CyaSSL and OpenSSL at runtime, as their headers cannot be included within
the same .c file (there are just too many conflicting definitions and
declarations for that).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
d65e6cc4fc
vtls: prepare the SSL backends for encapsulated private data
At the moment, cURL's SSL backend needs to be configured at build time.
As such, it is totally okay for them to hard-code their backend-specific
data in the ssl_connect_data struct.

In preparation for making the SSL backend a runtime option, let's make
the access of said private data a bit more abstract so that it can be
adjusted later in an easy manner.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:58 +02:00
Johannes Schindelin
69039fd1fa
getinfo: access SSL internals via Curl_ssl
In the ongoing endeavor to abstract out all SSL backend-specific
functionality, this is the next step: Instead of hard-coding how the
different SSL backends access their internal data in getinfo.c, let's
implement backend-specific functions to do that task.

This will also allow for switching SSL backends as a runtime option.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
118b074fba
vtls: move SSL backends' private constants out of their header files
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
5d9fcd2165
axtls: use Curl_none_* versions of init() and cleanup()
There are convenient no-op versions of the init/cleanup functions now,
no need to define private ones for axTLS.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
6f1eec14e0
vtls: remove obsolete declarations of SSL backend functionality
These functions are all available via the Curl_ssl struct now, no need
to declare them separately anymore.

As the global declarations are removed, the corresponding function
definitions are marked as file-local. The only two exceptions here are
Curl_mbedtls_shutdown() and Curl_polarssl_shutdown(): only the
declarations were removed, there are no function definitions to mark
file-local.

Please note that Curl_nss_force_init() is *still* declared globally, as
the only SSL backend-specific function, because it was introduced
specifically for the use case where cURL was compiled with
`--without-ssl --with-nss`. For details, see f3b77e561 (http_ntlm: add
support for NSS, 2010-06-27).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
742ddc9d8f
schannel: reorder functions topologically
The _shutdown() function calls the _session_free() function; While this
is not a problem now (because schannel.h declares both functions), a
patch looming in the immediate future with make all of these functions
file-local.

So let's just move the _session_free() function's definition before it
is called.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
3ea5461d4e
axtls: reorder functions topologically
The connect_finish() function (like many other functions after it) calls
the Curl_axtls_close() function; While this is not a problem now
(because axtls.h declares the latter function), a patch looming in the
immediate future with make all of these functions file-local.

So let's just move the Curl_axtls_close() function's definition before
it is called.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:57 +02:00
Johannes Schindelin
f0b4db1ab0
vtls: move the SUPPORT_HTTPS_PROXY flag into the Curl_ssl struct
That will allow us to choose the SSL backend at runtime.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
937899a3b8
vtls: convert the have_curlssl_* constants to runtime flags
The entire idea of introducing the Curl_ssl struct to describe SSL
backends is to prepare for choosing the SSL backend at runtime.

To that end, convert all the #ifdef have_curlssl_* style conditionals
to use bit flags instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
0a083a66bc
vtls: move sha256sum into the Curl_ssl struct
The SHA-256 checksumming is also an SSL backend-specific function.
Let's include it in the struct declaring the functionality of SSL
backends.

In contrast to MD5, there is no fall-back code. To indicate this, the
respective entries are NULL for those backends that offer no support for
SHA-256 checksumming.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
e35205a0c4
vtls: move md5sum into the Curl_ssl struct
The MD5 summing is also an SSL backend-specific function. So let's
include it, offering the previous fall-back code as a separate function
now: Curl_none_md5sum(). To allow for that, the signature had to be
changed so that an error could be returned from the implementation
(Curl_none_md5sum() can run out of memory).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
52e8237bfc
vtls: use the Curl_ssl struct to access all SSL backends' functionality
This is the first step to unify the SSL backend handling. Now all the
SSL backend-specific functionality is accessed via a global instance of
the Curl_ssl struct.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
e09bb63ed8
vtls: declare Curl_ssl structs for every SSL backend
The idea of introducing the Curl_ssl struct was to unify how the SSL
backends are declared and called. To this end, we now provide an
instance of the Curl_ssl struct for each and every SSL backend.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
e7e03e47d4
vtls: introduce a new struct for SSL backends
This new struct is similar in nature to Curl_handler: it will define the
functions and capabilities of all the SSL backends (where Curl_handler
defines the functions and capabilities of protocol handlers).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:56 +02:00
Johannes Schindelin
c9d526cdbf
vtls: make sure every _sha256sum()'s first arg is const
This patch makes the signature of the _sha256sum() functions consistent
among the SSL backends, in preparation for unifying the way all SSL
backends are accessed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:55 +02:00
Johannes Schindelin
2568cfed2d
vtls: make sure all _data_pending() functions return bool
This patch makes the signature of the _data_pending() functions
consistent among the SSL backends, in preparation for unifying the way
all SSL backends are accessed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:55 +02:00
Johannes Schindelin
b31d1dcddb
vtls: make sure all _cleanup() functions return void
This patch makes the signature of the _cleanup() functions consistent
among the SSL backends, in preparation for unifying the way all SSL
backends are accessed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:55 +02:00
Johannes Schindelin
dd02a9a341
vtls: use consistent signature for _random() implementations
This will make the upcoming multissl backend much easier to implement.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28 14:56:55 +02:00
Daniel Stenberg
b3b75d1778
darwinssl: handle long strings in TLS certs
... as the previous fixed length 128 bytes buffer was sometimes too
small.

Fixes #1823
Closes #1831

Reported-by: Benjamin Sergeant
Assisted-by: Bill Pyne, Ray Satiro, Nick Zitzmann
2017-08-27 19:06:02 +02:00
Daniel Stenberg
75536e529a
darwinssi: fix error: variable length array used 2017-08-16 07:58:44 +02:00
Daniel Stenberg
fd07ca1e20
openssl: fix "error: this statement may fall through"
A gcc7 warning.
2017-08-11 08:16:17 +02:00
David Benjamin
f26f6d258f
openssl: remove CONST_ASN1_BIT_STRING.
Just making the pointer as const works for the pre-1.1.0 path too.

Closes #1759
2017-08-11 08:15:58 +02:00
Marcel Raad
61046e7bd5
darwinssl: fix compiler warning
clang complains:
vtls/darwinssl.c:40:8: error: extra tokens at end of #endif directive
[-Werror,-Wextra-tokens]

This breaks the darwinssl build on Travis. Fix it by making this token
a comment.

Closes https://github.com/curl/curl/pull/1734
2017-08-05 00:11:01 +02:00
Daniel Stenberg
af271ce9b9 darwin: silence compiler warnings
With a clang pragma and three type fixes

Fixes #1722
2017-08-04 00:07:02 +02:00
Daniel Stenberg
fa2f134cbd darwinssl: fix curlssl_sha256sum() compiler warnings on first argument 2017-08-03 10:24:06 +02:00
Daniel Stenberg
4dee50b9c8 timeval: struct curltime is a struct timeval replacement
... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on several
platforms so it makes it cumbersome to use everywhere.

Ref: #1652
Closes #1693
2017-07-28 15:51:25 +02:00
Daniel Stenberg
7551e55d66 darwinssl: fix variable type mistake (regression)
... which made --tlsv1.2 not work because it would blank the max tls
version variable.

Reported-by: Nick Miyake
Bug: #1703
2017-07-27 18:30:11 +02:00
Kamil Dudka
42a4cd4c78 nss: fix a possible use-after-free in SelectClientCert()
... causing a SIGSEGV in showit() in case the handle used to initiate
the connection has already been freed.

This commit fixes a bug introduced in curl-7_19_5-204-g5f0cae803.

Reported-by: Rob Sanders
Bug: https://bugzilla.redhat.com/1436158
2017-07-20 08:09:01 +02:00
Kamil Dudka
c89eb6d0f8 nss: unify the coding style of nss_send() and nss_recv()
No changes in behavior intended by this commit.
2017-07-20 08:08:47 +02:00
Jay Satiro
798ad5d924 darwinssl: fix pinnedpubkey build error
- s/SessionHandle/Curl_easy/

Bug: https://github.com/curl/curl/commit/eb16305#commitcomment-23035670
Reported-by: Gisle Vanem
2017-07-17 02:46:07 -04:00
Johannes Schindelin
c0cdc68c7e gtls: fix build when sizeof(long) < sizeof(void *)
- Change gnutls pointer/int macros to pointer/curl_socket_t.
  Prior to this change they used long type as well.

The size of the `long` data type can be shorter than that of pointer
types. This is the case most notably on Windows.

If C99 were acceptable, we could simply use `intptr_t` here. But we
want to retain C89 compatibility.

Simply use the trick of performing pointer arithmetic with the NULL
pointer: to convert an integer `i` to a pointer, simply take the
address of the `i`th element of a hypothetical character array
starting at address NULL. To convert back, simply cast the pointer
difference.

Thanks to Jay Satiro for the initial modification to use curl_socket_t
instead of int/long.

Closes #1617

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-07-03 15:45:25 +02:00
dmitrykos
192877058e openssl: improve fallback seed of PRNG with a time based hash
Fixes #1620
2017-06-30 09:21:03 +02:00
Jay Satiro
17c5d05285 HTTPS-Proxy: don't offer h2 for https proxy connections
Bug: https://github.com/curl/curl/issues/1254

Closes #1546
2017-06-16 12:16:41 +02:00
Stuart Henderson
9f54ad8f15 libressl: OCSP and intermediate certs workaround no longer needed
lib/vtls/openssl.c has a workaround for a bug with OCSP responses signed
by intermediate certs, this was fixed in LibreSSL in
912c64f68f

Bug: https://curl.haxx.se/mail/lib-2017-06/0038.html
2017-06-13 12:28:22 +02:00
Marcel Raad
7207affe28
cyassl: define build macros before including ssl.h
cyassl/ssl.h needs the macros from cyassl/options.h, so define them
before including cyassl/ssl.h the first time, which happens in
urldata.h.
This broke the build on Ubuntu Xenial, which comes with WolfSSL 3.4.8
and therefore redefines the symbols from cyassl/options.h instead of
including the header.

Closes https://github.com/curl/curl/pull/1536
2017-06-03 00:39:46 +02:00
Marcel Raad
10e02bc36a
mbedtls: make TU-local variable static
mbedtls_x509_crt_profile_fr is only used locally.
This fixes a missing-variable-declarations warning with clang.
2017-06-02 22:05:01 +02:00
Jay Satiro
35e9281ef8 mbedtls: fix variable shadow warning
vtls/mbedtls.c:804:69: warning: declaration of 'entropy' shadows a global declaration [-Wshadow]
 CURLcode Curl_mbedtls_random(struct Curl_easy *data, unsigned char *entropy,
                                                                     ^~~~~~~
2017-05-29 17:38:33 -04:00
Nick Zitzmann
c58063b4f8 darwinssl: Fix exception when processing a client-side certificate file
if no error was raised by the API but the SecIdentityRef was null

Fixes #1450
2017-05-16 19:21:12 -05:00
eb16305e6a SecureTransport/DarwinSSL: Implement public key pinning
Closes #1400
2017-05-15 22:54:33 +02:00
Ron Eldor
bc3866e3eb mbedtls: Support server renegotiation request
Tested with servers: IIS 7.5; OpenSSL 1.0.2.

Closes https://github.com/curl/curl/pull/1475
2017-05-12 01:39:10 -04:00
Dan Fandrich
07fd7871b3 schannel: return a more specific error code for SEC_E_UNTRUSTED_ROOT 2017-05-04 18:19:33 +02:00
Dan Fandrich
6943085b50 gtls: fixed a lingering BUFSIZE reference 2017-05-02 09:14:26 +02:00
Daniel Stenberg
799c7048dc openssl: use local stack for temp storage 2017-05-01 22:55:29 +02:00
Kamil Dudka
e3e8d0204b nss: load libnssckbi.so if no other trust is specified
The module contains a more comprehensive set of trust information than
supported by nss-pem, because libnssckbi.so also includes information
about distrusted certificates.

Reviewed-by: Kai Engert
Closes #1414
2017-04-25 13:24:24 +02:00
Kamil Dudka
fab3d1ec65 nss: factorize out nss_{un,}load_module to separate fncs
No change of behavior is intended by this commit.
2017-04-25 13:22:37 +02:00
Kamil Dudka
c8ea86f377 nss: do not leak PKCS #11 slot while loading a key
It could prevent nss-pem from being unloaded later on.

Bug: https://bugzilla.redhat.com/1444860
2017-04-25 13:22:33 +02:00