Daniel Stenberg [Sat, 21 Apr 2018 10:33:52 +0000 (12:33 +0200)]
http2: convert an assert to run-time check
Fuzzing has proven we can reach code in on_frame_recv with status_code
not having been set, so let's detect that in run-time (instead of with
assert) and error error accordingly.
(This should no longer happen with the latest nghttp2)
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7903
Closes #2514
Daniel Stenberg [Fri, 20 Apr 2018 14:32:46 +0000 (16:32 +0200)]
http2: avoid strstr() on data not zero terminated
It's not strictly clear if the API contract allows us to call strstr()
on a string that isn't zero terminated even when we know it will find
the substring, and clang's ASAN check dislikes us for it.
Also added a check of the return code in case it fails, even if I can't
think of a situation how that can trigger.
Detected by OSS-Fuzz
Closes #2513
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7760
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.
Jay Satiro [Tue, 20 Mar 2018 06:57:50 +0000 (02:57 -0400)]
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
Daniel Stenberg [Wed, 18 Apr 2018 21:51:01 +0000 (23:51 +0200)]
http2: handle on_begin_headers() called more than once
This triggered an assert if called more than once in debug mode (and a
memory leak if not debug build). With the right sequence of HTTP/2
headers incoming it can happen.
Dan McNulty [Fri, 10 Mar 2017 20:27:30 +0000 (14:27 -0600)]
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.
Jay Satiro [Tue, 17 Apr 2018 17:47:01 +0000 (13:47 -0400)]
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.
ntlm_sspi: fix authentication using Credential Manager
If you pass empty user/pass asking curl to use Windows Credential
Storage (as stated in the docs) and it has valid credentials for the
domain, e.g.
curl -v -u : --ntlm example.com
currently authentication fails.
This change fixes it by providing proper SPN string to the SSPI API
calls.
The ifdefs have become quite long. Also, the condition for the
definition of CURLOPT_SERVICE_NAME and for setting it from
CURLOPT_SERVICE_NAME have diverged. We will soon also need the two
options for NTLM, at least when using SSPI, for
https://github.com/curl/curl/pull/1660.
Just make the definitions unconditional to make that easier.
system.h: Add sparcv8plus to oracle/sunpro 32-bit detection
With specific compiler options selecting the arch like -xarch=sparc on
newer compilers like Oracle Studio 12.4 there is no definition of
__sparcv8 but __sparcv8plus which means the V9 ISA, but limited to the
32ÎíÎñbit subset defined by the V8plus ISA specification, without the
Visual Instruction Set (VIS), and without other implementation-specific
ISA extensions. So it should be the same as __sparcv8.
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.
In debug mode, MingGW-w64's GCC 7.3 issues null-dereference warnings
when dereferencing pointers after DEBUGASSERT-ing that they are not
NULL.
Fix this by removing the DEBUGASSERTs.
Suggested-by: Daniel Stenberg
Ref: https://github.com/curl/curl/pull/2463
Stefan Agner [Fri, 6 Apr 2018 19:00:02 +0000 (21:00 +0200)]
tool_operate: Fix retry on FTP 4xx to ignore other protocols
Only treat response code as FTP response codes in case the
protocol type is FTP.
This fixes an issue where an HTTP download was treated as FTP
in case libcurl returned with 33. This happens when the
download has already finished and the server responses 416:
HTTP/1.1 416 Requested Range Not Satisfiable
winbuild: make the clean target work without build-type
Due to the check in Makefile.vc and MakefileBuild.vc, no make call can
be invoked unless a build-type was specified. However, a clean target
only existed when a build type was specified. As a result, the clean
target was unreachable. Made clean target unconditional.
FTP: allow PASV on IPv6 connections when a proxy is being used
In the situation of a client connecting to an FTP server using an IPv6
tunnel proxy, the connection info will indicate that the connection is
IPv6. However, because the server behing the proxy is IPv4, it is
permissable to attempt PSV mode. In the case of the FTP server being
IPv4 only, EPSV will always fail, and with the current logic curl will
be unable to connect to the server, as the IPv6 fwdproxy causes curl to
think that EPSV is impossible.
Jon DeVree [Thu, 29 Mar 2018 22:39:56 +0000 (18:39 -0400)]
file: restore old behavior for file:////foo/bar URLs
curl 7.57.0 and up interpret this according to Appendix E.3.2 of RFC
8089 but then returns an error saying this is unimplemented. This is
actually a regression in behavior on both Windows and Unix.
Before curl 7.57.0 this URL was treated as a path of "//foo/bar" and
then passed to the relevant OS API. This means that the behavior of this
case is actually OS dependent.
The Unix path resolution rules say that the OS must handle swallowing
the extra "/" and so this path is the same as "/foo/bar"
The Windows path resolution rules say that this is a UNC path and
automatically handles the SMB access for the program. So curl on Windows
was already doing Appendix E.3.2 without any special code in curl.
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).
Jay Satiro [Mon, 26 Mar 2018 22:29:30 +0000 (18:29 -0400)]
travis: enable apt retry on fail
This is a workaround for an unsolved travis issue that is causing CI
instances to sporadically fail due to 'unable to connect' issues during
apt stage.
Daniel Stenberg [Thu, 22 Mar 2018 16:59:58 +0000 (17:59 +0100)]
threaded resolver: track resolver time and set suitable timeout values
In order to make curl_multi_timeout() return suitable "sleep" times even
when there's no socket to wait for while the name is being resolved in a
helper thread.
Daniel Stenberg [Mon, 19 Mar 2018 15:28:05 +0000 (16:28 +0100)]
http2: read pending frames (including GOAWAY) in connection-check
If a connection has received a GOAWAY frame while not being used, the
function now reads frames off the connection before trying to reuse it
to avoid reusing connections the server has told us not to use.
Don [Fri, 16 Mar 2018 19:49:13 +0000 (12:49 -0700)]
cmake: add support for brotli
Currently CMake cannot detect Brotli support. This adds detection of the
libraries and associated header files. It also adds this to the
generated config.
Rick Deist [Sat, 17 Mar 2018 19:10:04 +0000 (20:10 +0100)]
resolve: add CURLOPT_DNS_SHUFFLE_ADDRESSES
This patch adds CURLOPT_DNS_SHUFFLE_ADDRESSES to explicitly request
shuffling of IP addresses returned for a hostname when there is more
than one. This is useful when the application knows that a round robin
approach is appropriate and is willing to accept the consequences of
potentially discarding some preference order returned by the system's
implementation.
When a transfer is requested to get done and it is put in the pending
queue when limited by number of connections, total or per-host, libcurl
would previously very aggressively retry *ALL* pending transfers to get
them transferring. That was very time consuming.
By reducing the aggressiveness in how pending are being retried, we
waste MUCH less time on putting transfers back into pending again.
Some test cases got a factor 30(!) speed improvement with this change.
projects / curl / log