Commit Graph

499 Commits

Author SHA1 Message Date
opensignature
dc8c859b0c
openssl: add details to "unable to set client certificate" error
from: "curl: (58) unable to set client certificate"

to: curl: (58) unable to set client certificate [error:0A00018F:SSL
routines::ee key too small]

Closes #9228
2022-08-08 09:49:38 +02:00
Futaura
e1acfafa49
amissl: make AmiSSL v5 a minimum requirement
AmiSSL v5 is the latest version, featuring a port of OpenSSL 3.0.
Support for previous OpenSSL 1.1.x versions has been dropped, so
makes sense to enforce v5 as the minimum requirement. This also
allows all the AmiSSL stub workarounds to be removed as they are
now provided in a link library in the AmiSSL SDK.

Closes #9267
2022-08-08 09:16:01 +02:00
Viktor Szakats
9153ba708b
openssl: add CURL_BORINGSSL_VERSION to identify BoringSSL
BoringSSL doesn't keep a version number, and doesn't self-identify itself
via any other revision number via its own headers. We can identify
BoringSSL revisions by their commit hash. This hash is typically known by
the builder. This patch adds a way to pass this hash to libcurl, so that
it can display in the curl version string:

For example:

`CFLAGS=-DCURL_BORINGSSL_VERSION="c239ffd0"`

```
curl 7.84.0 (x86_64-w64-mingw32) libcurl/7.84.0 BoringSSL/c239ffd0 (Schannel) zlib/1.2.12 [...]
Release-Date: 2022-06-27
Protocols: dict file ftp ftps gopher gophers http https imap imaps ldap ldaps mqtt pop3 [...]
Features: alt-svc AsynchDNS brotli gsasl HSTS HTTP2 HTTP3 HTTPS-proxy IDN IPv6 Kerberos [...]
```

The setting is optional, and if not passed, BoringSSL will appear without
a version number, like before this patch.

Closes #9113
2022-07-08 10:12:15 +00:00
max.mehl
ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00
Daniel Stenberg
8d86718f3f
opts: deprecate RANDOM_FILE and EGDSOCKET
These two options were only ever used for the OpenSSL backend for
versions before 1.1.0. They were never used for other backends and they
are not used with recent OpenSSL versions. They were never used much by
applications.

The defines RANDOM_FILE and EGD_SOCKET can still be set at build-time
for ancient EOL OpenSSL versions.

Closes #8670
2022-05-17 11:05:54 +02:00
Daniel Stenberg
f18af4f874
tls: check more TLS details for connection reuse
CVE-2022-27782

Reported-by: Harry Sintonen
Bug: https://curl.se/docs/CVE-2022-27782.html
Closes #8825
2022-05-09 23:13:53 +02:00
Christian Weisgerber
a3cf94f3ef
openssl: define HAVE_SSL_CTX_SET_EC_CURVES for libressl
SSL_CTX_set1_curves_list() has been available since LibreSSL 2.5.3,
released five years ago.

Bug: https://curl.se/mail/lib-2022-04/0059.html
Closes #8773
2022-04-29 23:02:45 +02:00
Daniel Stenberg
139a54ed0a
openssl: don't leak the SRP credentials in redirects either
Follow-up to 620ea21410

Reported-by: Harry Sintonen
Closes #8751
2022-04-25 22:34:40 +02:00
Daniel Stenberg
6968fb9d54
lib: remove exclamation marks
... from infof() and failf() calls. Make them less attention seeking.

Closes #8713
2022-04-16 11:55:05 +02:00
Daniel Stenberg
34ebf3f90d
vtls: use a generic "ALPN, server accepted" message
Closes #8657
2022-03-31 14:21:01 +02:00
Daniel Stenberg
55043b40c1
vtls: use a backend standard message for "ALPN: offers %s"
I call it VTLS_INFOF_ALPN_OFFER_1STR, the '1str' meaning that the
infof() call also needs a string argument: the ALPN ID.

Closes #8657
2022-03-31 14:20:56 +02:00
Daniel Stenberg
3bc5b32db5
vtls: provide a unified APLN-disagree string for all backends
Also rephrase to make it sound less dangerous:

 "ALPN: server did not agree on a protocol. Uses default."

Reported-by: Nick Coghlan
Fixes #8643
Closes #8651
2022-03-31 09:20:16 +02:00
Jean-Philippe Menil
680245cd39
openssl: check SSL_get_peer_cert_chain return value
Signed-off-by: Jean-Philippe Menil <jpmenil@gmail.com>
Closes #8579
2022-03-11 07:45:35 +01:00
Tatsuhiro Tsujikawa
c82b281e17
ngtcp2: add client certificate authentication for OpenSSL
Closes #8522
2022-03-10 08:41:37 +01:00
Daniel Stenberg
911714d617
openssl: fix CN check error code
Due to a missing 'else' this returns error too easily.

Regressed in: d15692ebb

Reported-by: Kristoffer Gleditsch
Fixes #8559
Closes #8560
2022-03-08 15:59:04 +01:00
lwthiker
68dc5bcd46
openssl: enable CURLOPT_SSL_EC_CURVES with BoringSSL
The CURLOPT_SSL_EC_CURVES option (used by the '--curves' flag) in
libcurl was ignored when compiling with BoringSSL because
HAVE_SSL_CTX_SET_EC_CURVES was explicitly disabled if BoringSSL was
detected.  However, this feature is supported in BoringSSL since
5fd1807d. This commit enables it, and also reduces the required minimal
OpenSSL version to 1.0.2 as per OpenSSL's official documentation.

Fixes #8553
Closes #8556
2022-03-08 09:11:19 +01:00
Jay Satiro
f7ba0eccf7 openssl: check if sessionid flag is enabled before retrieving session
Ideally, Curl_ssl_getsessionid should not be called unless sessionid
caching is enabled. There is a debug assertion in the function to help
ensure that. Therefore, the pattern in all vtls is basically:

  if(primary.sessionid) {lock(); Curl_ssl_getsessionid(...); unlock();}

There was one instance in openssl.c where sessionid was not checked
beforehand and this change fixes that.

Prior to this change an assertion would occur in openssl debug builds
during connection stage if session caching was disabled.

Reported-by: Jim Beveridge

Fixes https://github.com/curl/curl/issues/8472
Closes https://github.com/curl/curl/pull/8484
2022-02-21 03:23:47 -05:00
MAntoniak
ccc2752ce8
ssl: reduce allocated space for ssl backend when FTP is disabled
Add assert() for the backend pointer in many places

Closes #8471
2022-02-21 08:39:55 +01:00
MAntoniak
bbe7042113
openssl: fix build for version < 1.1.0
Closes #8470
2022-02-18 08:08:04 +01:00
Henrik Holst
65c6e37fe3
hostcheck: reduce strlen calls on chained certificates
Closes #8428
2022-02-13 11:42:47 +01:00
Daniel Stenberg
d15692ebba
hostcheck: pass in pattern length too, to avoid a strlen call
Removes one strlen() call per SAN name in a cert-check.

Closes #8418
2022-02-10 08:53:34 +01:00
Daniel Stenberg
2610142139
lib: remove support for CURL_DOES_CONVERSIONS
TPF was the only user and support for that was dropped.

Closes #8378
2022-02-04 08:05:35 +01:00
Marcel Raad
610bd89315
openssl: fix ctx_option_t for OpenSSL v3+
The options have been changed to `uint64_t` in
56bd17830f.

Closes https://github.com/curl/curl/pull/8331
2022-01-27 12:22:18 +01:00
Daniel Stenberg
2218c3a57e
vtls: pass on the right SNI name
The TLS backends convert the host name to SNI name and need to use that.
This involves cutting off any trailing dot and lowercasing.

Co-authored-by: Jay Satiro
Closes #8320
2022-01-27 08:36:10 +01:00
Daniel Stenberg
b27ad8e1d3
url: revert the removal of trailing dot from host name
Reverts 5de8d84098 (May 2014, shipped in 7.37.0) and the
follow-up changes done afterward.

Keep the dot in names for everything except the SNI to make curl behave
more similar to current browsers. This means 'name' and 'name.' send the
same SNI for different 'Host:' headers.

Updated test 1322 accordingly

Fixes #8290
Reported-by: Charles Cazabon
Closes #8320
2022-01-27 08:35:18 +01:00
xkernel
a97eb81d94
openssl: check SSL_get_ex_data to prevent potential NULL dereference
Closes #8268
2022-01-23 10:41:24 +01:00
lucas
519b62ccd0
docs: update IETF links to use datatracker
The tools.ietf.org domain has been deprecated a while now, with the
links being redirected to datatracker.ietf.org.

Rather than make people eat that redirect time, this change switches the
URL to a more canonical source.

Closes #8317
2022-01-21 23:06:36 +01:00
Daniel Stenberg
d03cb7c14a
openssl: return error if TLS 1.3 is requested when not supported
Previously curl would just silently ignore it if the necessary defines
are not present at build-time.

Reported-by: Stefan Eissing
Fixes #8309
Closes #8310
2022-01-21 08:44:17 +01:00
Daniel Stenberg
3a6b923170
openssl: copyright year update
Follow-up to 30aea2b1ed
2022-01-07 09:59:29 +01:00
xkernel
30aea2b1ed
openssl: check the return value of BIO_new_mem_buf()
Closes #8233
2022-01-07 09:34:08 +01:00
Daniel Stenberg
f77292663c
http_proxy: don't close the socket (too early)
... and double-check in the OpenSSL shutdown that the socket is actually
still there before it is used.

Fixes #8193
Closes #8195

Reported-by: Leszek Kubik
2021-12-29 23:20:03 +01:00
Daniel Stenberg
c148f0f551
ngtcp2: verify the server cert on connect (quictls)
Make ngtcp2+quictls correctly acknowledge `CURLOPT_SSL_VERIFYPEER` and
`CURLOPT_SSL_VERIFYHOST`.

The name check now uses a function from lib/vtls/openssl.c which will
need attention for when TLS is not done by OpenSSL or is disabled while
QUIC is enabled.

Possibly the servercert() function in openssl.c should be adjusted to be
able to use for both regular TLS and QUIC.

Ref: #8173
Closes #8178
2021-12-28 23:34:23 +01:00
Jay Satiro
79d6057f1b openssl: define HAVE_OPENSSL_VERSION for OpenSSL 1.1.0+
Prior to this change OpenSSL_version was only detected in configure
builds. For other builds the old version parsing code was used which
would result in incorrect versioning for OpenSSL 3:

Before:

curl 7.80.0 (i386-pc-win32) libcurl/7.80.0 OpenSSL/3.0.0a zlib/1.2.11
WinIDN libssh2/1.9.0

After:

curl 7.80.0 (i386-pc-win32) libcurl/7.80.0 OpenSSL/3.0.1 zlib/1.2.11
WinIDN libssh2/1.9.0

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

Fixes https://github.com/curl/curl/issues/8154
Closes https://github.com/curl/curl/pull/8155
2021-12-16 13:49:52 -05:00
x2018
34294a65b2
openssl: check the return value of BIO_new()
Closes #8078
2021-12-01 11:51:53 +01:00
Marcel Raad
9b9485e7ac openssl: use non-deprecated API to read key parameters
With OpenSSL 3.0, the parameters are read directly from the `EVP_PKEY`
using `EVP_PKEY_get_bn_param`.

Closes https://github.com/curl/curl/pull/7893
2021-11-20 12:04:57 +01:00
Marcel Raad
9b923eaf3e openssl: reduce code duplication
`BN_print`'s `BIGNUM` parameter has been `const` since OpenSSL 0.9.4.

Closes https://github.com/curl/curl/pull/7893
2021-11-20 12:04:56 +01:00
Marcel Raad
6147dfab93 openssl: remove RSA_METHOD_FLAG_NO_CHECK handling if unavailable
The flag has been deprecated without replacement in OpenSSL 3.0.

Closes https://github.com/curl/curl/pull/7893
2021-11-20 12:04:56 +01:00
Marcel Raad
1e80f56d0b openssl: remove usage of deprecated SSL_get_peer_certificate
The function name was changed to `SSL_get1_peer_certificate` in OpenSSL
3.0.

Closes https://github.com/curl/curl/pull/7893
2021-11-20 12:04:56 +01:00
Daniel Stenberg
83393b1a36
openssl: if verifypeer is not requested, skip the CA loading
It was previously done mostly to show a match/non-match in the verbose
output even when verification was not asked for. This change skips the
loading of the CA certs unless verifypeer is set to save memory and CPU.

Closes #7892
2021-10-22 16:16:19 +02:00
Daniel Stenberg
54aa9c48b2
tls: remove newline from three infof() calls
Follow-up to e7416cf

Reported-by: billionai on github
Fixes #7879
Closes #7880
2021-10-19 23:03:57 +02:00
Daniel Stenberg
f3c215e18a
openssl: with OpenSSL 1.1.0+ a failed RAND_status means goaway
One reason we know it can fail is if a provider is used that doesn't do
a proper job or is wrongly configured.

Reported-by: Michael Baentsch
Fixes #7840
Closes #7856
2021-10-14 22:44:58 +02:00
Michael Kaufmann
60738f398c vtls: Fix a memory leak if an SSL session cannot be added to the cache
On connection shutdown, a new TLS session ticket may arrive after the
SSL session cache has already been destructed. In this case, the new
SSL session cannot be added to the SSL session cache.

The callers of Curl_ssl_addsessionid() need to know whether the SSL
session has been added to the cache. If it has not been added, the
reference counter of the SSL session must not be incremented, or memory
used by the SSL session must be freed. This is now possible with the new
output parameter "added" of Curl_ssl_addsessionid().

Fixes #7683
Closes #7752
2021-09-24 13:23:42 +02:00
Gisle Vanem
3a6d30cfd3 openssl: annotate SSL3_MT_SUPPLEMENTAL_DATA
This adds support for the previously unhandled supplemental data which
in -v output was printed like:

    TLSv1.2 (IN), TLS header, Unknown (23):

These will now be printed with proper annotation:

    TLSv1.2 (OUT), TLS header, Supplemental data (23):

Closes #7652
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2021-09-01 22:46:21 +02:00
Daniel Stenberg
0da1356060
openssl: when creating a new context, there cannot be an old one
Remove the previous handling that would call SSL_CTX_free(), and instead
add an assert that halts a debug build if there ever is a context
already set at this point.

Closes #7585
2021-08-18 14:11:45 +02:00
Josh Soref
e8cd39345e openssl: fix grammar
Closes https://github.com/curl/curl/pull/7480
2021-07-25 01:42:39 -04:00
Daniel Stenberg
5ea3145850
vtls: fix connection reuse checks for issuer cert and case sensitivity
CVE-2021-22924

Reported-by: Harry Sintonen
Bug: https://curl.se/docs/CVE-2021-22924.html
2021-07-20 09:36:06 +02:00
Daniel Stenberg
e7416cfd2b
infof: remove newline from format strings, always append it
- the data needs to be "line-based" anyway since it's also passed to the
  debug callback/application

- it makes infof() work like failf() and consistency is good

- there's an assert that triggers on newlines in the format string

- Also removes a few instances of "..."

- Removes the code that would append "..." to the end of the data *iff*
  it was truncated in infof()

Closes #7357
2021-07-07 22:54:01 +02:00
Daniel Stenberg
1ff1d9e179
lib: more %u for port and int for %*s fixes
Detected by Coverity

Closes #7329
2021-07-01 09:12:58 +02:00
Daniel Stenberg
78fc6522c2
lib: fix type of len passed to *printf's %*s
... it needs to be 'int'. Detected by Coverity CID 1486611 (etc)

Closes #7326
2021-06-30 23:53:58 +02:00
Daniel Stenberg
63c7668182
version: turn version number functions into returning void
... as we never use the return codes from them.

Reviewed-by: Daniel Gustafsson
Closes #7319
2021-06-30 23:23:34 +02:00
Daniel Stenberg
4aed7a1923
openssl: avoid static variable for seed flag
Avoid the race condition risk by instead storing the "seeded" flag in
the multi handle. Modern OpenSSL versions handle the seeding itself so
doing the seeding once per multi-handle instead of once per process is
less of an issue.

Reported-by: Gerrit Renker
Fixes #7296
Closes #7306
2021-06-29 14:18:15 +02:00
Daniel Stenberg
720b4a1a43
TLS: prevent shutdown loops to get stuck
... by making sure the loops are only allowed to read the shutdown
traffic a limited number of times.

Reported-by: Harry Sintonen
Closes #7271
2021-06-17 17:06:21 +02:00
Daniel Stenberg
a5adf8cb14
openssl: don't remove session id entry in disassociate
When a connection is disassociated from a transfer, the Session ID entry
should remain.

Regression since 7f4a9a9 (shipped in libcurl 7.77.0)
Reported-by: Gergely Nagy
Reported-by: Paul Groke

Fixes #7222
Closes #7230
2021-06-11 12:52:55 +02:00
Michael Kaufmann
b249592d29 ssl: read pending close notify alert before closing the connection
This avoids a TCP reset (RST) if the server initiates a connection
shutdown by sending an SSL close notify alert and then closes the TCP
connection.

For SSL connections, usually the server announces that it will close the
connection with an SSL close notify alert. curl should read this alert.
If curl does not read this alert and just closes the connection, some
operating systems close the TCP connection with an RST flag.

See RFC 1122, section 4.2.2.13

If curl reads the close notify alert, the TCP connection is closed
normally with a FIN flag.

The new code is similar to existing code in the "SSL shutdown" function:
try to read an alert (non-blocking), and ignore any read errors.

Closes #7095
2021-06-01 09:40:40 +02:00
Harry Sintonen
7f4a9a9b2a
openssl: associate/detach the transfer from connection
CVE-2021-22901

Bug: https://curl.se/docs/CVE-2021-22901.html
2021-05-24 13:15:10 +02:00
Cameron Cawley
3f25c01fce
openssl: remove unneeded cast for CertOpenSystemStore()
Closes #7025
2021-05-09 00:17:16 +02:00
Gilles Vollant
77fc3859b2 SSL: support in-memory CA certs for some backends
- New options CURLOPT_CAINFO_BLOB and CURLOPT_PROXY_CAINFO_BLOB to
  specify in-memory PEM certificates for OpenSSL, Schannel (Windows)
  and Secure Transport (Apple) SSL backends.

Prior to this change PEM certificates could only be imported from a file
and not from memory.

Co-authored-by: moparisthebest@users.noreply.github.com

Ref: https://github.com/curl/curl/pull/4679
Ref: https://github.com/curl/curl/pull/5677
Ref: https://github.com/curl/curl/pull/6109

Closes https://github.com/curl/curl/pull/6662
2021-05-05 02:29:16 -04:00
ejanchivdorj
94241a9e78
CURLcode: add CURLE_SSL_CLIENTCERT
When a TLS server requests a client certificate during handshake and
none can be provided, libcurl now returns this new error code
CURLE_SSL_CLIENTCERT

Only supported by Secure Transport and OpenSSL for TLS 1.3 so far.

Closes #6721
2021-05-03 17:11:01 +02:00
Jacob Hoffman-Andrews
a3268eca79
tls: add USE_HTTP2 define
This abstracts across the two HTTP/2 backends: nghttp2 and Hyper.

Add our own define for the "h2" ALPN protocol, so TLS backends can use
it without depending on a specific HTTP backend.

Closes #6959
2021-04-29 15:04:39 +02:00
Michał Antoniak
e4ba999646
vtls: deduplicate some DISABLE_PROXY ifdefs
continue from #5735

- using SSL_HOST_NAME, SSL_HOST_DISPNAME, SSL_PINNED_PUB_KEY for other
  tls backend

- create SSL_HOST_PORT

Closes #6660
2021-04-22 22:50:56 +02:00
Daniel Stenberg
063d3f3b96
tidy-up: make conditional checks more consistent
... remove '== NULL' and '!= 0'

Closes #6912
2021-04-22 09:10:17 +02:00
Georeth Zhou
6e3f2febcb openssl: fix build error with OpenSSL < 1.0.2
Closes https://github.com/curl/curl/pull/6920
2021-04-20 00:08:36 -04:00
Daniel Stenberg
eff614fb02
vtls: refuse setting any SSL version
... previously they were supported if a TLS library would (unexpectedly)
still support them, but from this change they will be refused already in
curl_easy_setopt(). SSLv2 and SSLv3 have been known to be insecure for
many years now.

Closes #6773
2021-04-19 08:16:02 +02:00
Gilles Vollant
06a7f2745e
openssl: Fix CURLOPT_SSLCERT_BLOB without CURLOPT_SSLCERT_KEY
Reported-by: Christian Schmitz
Fixes #6816
Closes #6820
2021-03-31 23:35:59 +02:00
Daniel Stenberg
b09c8ee157
vtls: add 'isproxy' argument to Curl_ssl_get/addsessionid()
To make sure we set and extract the correct session.

Reported-by: Mingtao Yang
Bug: https://curl.se/docs/CVE-2021-22890.html

CVE-2021-22890
2021-03-28 23:19:56 +02:00
Jean-Philippe Menil
5930cb1c46
openssl: ensure to check SSL_CTX_set_alpn_protos return values
SSL_CTX_set_alpn_protos() return 0 on success, and non-0 on failure

Signed-off-by: Jean-Philippe Menil <jpmenil@gmail.com>

Closes #6794
2021-03-25 22:57:20 +01:00
Daniel Stenberg
db4e0bd85f
openssl: set the transfer pointer for logging early
Otherwise, the transfer will be NULL in the trace function when the
early handshake details arrive and then curl won't show them.

Regresssion in 7.75.0

Reported-by: David Hu
Fixes #6783
Closes #6792
2021-03-25 16:16:55 +01:00
Daniel Stenberg
b7e01382d6
openssl: adapt to v3's new const for a few API calls
Closes #6703
2021-03-09 08:15:36 +01:00
Jean-Philippe Menil
8779bfe77b openssl: remove get_ssl_version_txt in favor of SSL_get_version
openssl: use SSL_get_version to get connection protocol

Replace our bespoke get_ssl_version_txt in favor of SSL_get_version.
We can get rid of few lines of code, since SSL_get_version achieve
the exact same thing

Closes #6665
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Signed-off-by: Jean-Philippe Menil <jpmenil@gmail.com>
2021-02-26 04:15:04 +01:00
Daniel Stenberg
70472a44de
urldata: remove the _ORIG suffix from string names
It doesn't provide any useful info but only makes the names longer.

Closes #6624
2021-02-19 08:07:19 +01:00
Daniel Stenberg
f2f91ac709
openssl: remove conn->data use
We still make the trace callback function get the connectdata struct
passed to it, since the callback is anchored on the connection.

Repeatedly updating the callback pointer to set 'data' with
SSL_CTX_set_msg_callback_arg() doesn't seem to work, probably because
there might already be messages in the queue with the old pointer.

This code therefore makes sure to set the "logger" handle before using
OpenSSL calls so that the right easy handle gets used for tracing.

Closes #6522
2021-02-15 09:08:59 +01:00
Daniel Stenberg
88dd1a8a11
urldata: don't touch data->set.httpversion at run-time
Rename it to 'httpwant' and make a cloned field in the state struct as
well for run-time updates.

Also: refuse non-supported HTTP versions. Verified with test 129.

Closes #6585
2021-02-12 08:13:37 +01:00
Jacob Hoffman-Andrews
c30bf22f1c
vtls: factor out Curl_ssl_getsock to field of Curl_ssl
Closes #6558
2021-02-08 14:10:55 +01:00
Daniel Stenberg
2c4b338f7e
vtls: remove md5sum
As it is not used anymore.

Reported-by: Jacob Hoffman-Andrews
Bug: https://curl.se/mail/lib-2021-02/0000.html

Closes #6557
2021-02-02 08:13:09 +01:00
Daniel Stenberg
60de76e2ad
openssl: lowercase the hostname before using it for SNI
... because it turns out several servers out there don't actually behave
correctly otherwise in spite of the fact that the SNI field is
specifically said to be case insensitive in RFC 6066 section 3.

Reported-by: David Earl
Fixes #6540
Closes #6543
2021-01-29 10:40:01 +01:00
Patrick Monnerat
bbe3aa9f88
vtls: reduce conn->data use
Closes #6474
2021-01-19 09:14:40 +01:00
Daniel Stenberg
215db086e0
lib: pass in 'struct Curl_easy *' to most functions
... in most cases instead of 'struct connectdata *' but in some cases in
addition to.

- We mostly operate on transfers and not connections.

- We need the transfer handle to log, store data and more. Everything in
  libcurl is driven by a transfer (the CURL * in the public API).

- This work clarifies and separates the transfers from the connections
  better.

- We should avoid "conn->data". Since individual connections can be used
  by many transfers when multiplexing, making sure that conn->data
  points to the current and correct transfer at all times is difficult
  and has been notoriously error-prone over the years. The goal is to
  ultimately remove the conn->data pointer for this reason.

Closes #6425
2021-01-17 23:56:09 +01:00
Daniel Stenberg
3112ede57c
openssl: remove Curl_ prefix from static functions
... as we reserve this prefix to library-wide functions.

Closes #6443
2021-01-14 08:08:54 +01:00
Fabian Keil
4f61fd87b2
misc: fix typos
Bug: https://curl.se/mail/lib-2021-01/0063.html
Closes #6434
2021-01-11 15:12:25 +01:00
Daniel Stenberg
aba01da639
failf: remove newline from formatting strings
... as failf adds one itself.

Also: add an assert() to failf() that triggers on a newline in the
format string!

Closes #6365
2020-12-25 23:42:16 +01:00
Daniel Stenberg
d9d0167278
openssl: make the OCSP verification verify the certificate id
CVE-2020-8286

Reported by anonymous

Bug: https://curl.se/docs/CVE-2020-8286.html
2020-12-07 09:27:10 +01:00
Daniel Stenberg
1835cb916e
openssl: use OPENSSL_init_ssl() with >= 1.1.0
Reported-by: Kovalkov Dmitrii and Per Nilsson
Fixes #6254
Fixes #6256
Closes #6260
2020-12-03 22:30:38 +01:00
Daniel Stenberg
2d4d012a49
openssl: free mem_buf in error path
To fix a memory-leak.

Closes #6267
2020-12-01 08:03:47 +01:00
Daniel Stenberg
0d75bf9ae9
openssl: remove #if 0 leftover
Follow-up to 4c9768565e (from Sep 2008)

Closes #6268
2020-11-30 19:59:12 +01:00
Daniel Gustafsson
3a8cdc82dc openssl: guard against OOM on context creation
EVP_MD_CTX_create will allocate memory for the context and returns
NULL in case the allocation fails. Make sure to catch any allocation
failures and exit early if so.

In passing, also move to EVP_DigestInit rather than EVP_DigestInit_ex
as the latter is intended for ENGINE selection which we don't do.

Closes #6224
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Emil Engler <me@emilengler.com>
2020-11-19 01:40:24 +01:00
Daniel Stenberg
4d2f800677
curl.se: new home
Closes #6172
2020-11-04 23:59:47 +01:00
Daniel Stenberg
a3d5b199f9
openssl: acknowledge SRP disabling in configure properly
Follow-up to 68a5132474

Use a new separate define that is the combination of both
HAVE_OPENSSL_SRP and USE_TLS_SRP: USE_OPENSSL_SRP

Bug: https://curl.haxx.se/mail/lib-2020-10/0037.html

Closes #6094
2020-10-16 14:29:02 +02:00
Daniel Stenberg
475c1aba68
checksrc: warn on empty line before open brace
... and fix a few occurances

Closes #6088
2020-10-15 23:32:26 +02:00
Viktor Szakats
d707a9fa64
windows: fix comparison of mismatched types warning
clang 10, mingw-w64:
```
vtls/openssl.c:2917:33: warning: comparison of integers of different signs: 'DWORD' (aka 'unsigned long') and 'HRESULT' (aka 'long')
      [-Wsign-compare]
              if(GetLastError() != CRYPT_E_NOT_FOUND)
                 ~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~~~
```

Approved-by: Daniel Stenberg
Closes #6062
2020-10-12 10:18:53 +00:00
Kamil Dudka
7920be9473
vtls: deduplicate some DISABLE_PROXY ifdefs
... in the code of gtls, nss, and openssl

Closes #5735
2020-10-01 16:36:24 +02:00
Gergely Nagy
182ff2d63c
vtls: deduplicate client certificates in ssl_config_data
Closes #5629
2020-09-14 12:56:47 +02:00
Daniel Stenberg
6d946ad9fe
openssl: consider ALERT_CERTIFICATE_EXPIRED a failed verification
If the error reason from the lib is
SSL_R_SSLV3_ALERT_CERTIFICATE_EXPIRED, libcurl will return
CURLE_PEER_FAILED_VERIFICATION and not CURLE_SSL_CONNECT_ERROR.

This unifies the libcurl return code and makes libressl run test 313
(CRL testing) fine.

Closes #5934
2020-09-07 17:26:27 +02:00
Daniel Stenberg
b3fbb2fb9d
openssl: avoid error conditions when importing native CA
The code section that is OpenSSL 3+ specific now uses the same logic as
is used in the version < 3 section. It caused a compiler error without
it.

Closes #5907
2020-09-02 22:47:52 +02:00
Michael Baentsch
ede125b7b7
tls: add CURLOPT_SSL_EC_CURVES and --curves
Closes #5892
2020-08-30 17:24:04 +02:00
Daniel Stenberg
68a5132474
TLS: fix SRP detection by using the proper #ifdefs
USE_TLS_SRP will be true if *any* selected TLS backend can use SRP

HAVE_OPENSSL_SRP is defined when OpenSSL can use it

HAVE_GNUTLS_SRP is defined when GnuTLS can use it

Clarify in the curl_verison_info docs that CURL_VERSION_TLSAUTH_SRP is
set if at least one of the supported backends offers SRP.

Reported-by: Stefan Strogin
Fixes #5865
Closes #5870
2020-08-28 14:13:05 +02:00
Jay Satiro
fbe07c6829 openssl: Fix wincrypt symbols conflict with BoringSSL
OpenSSL undefines the conflicting symbols but BoringSSL does not so we
must do it ourselves.

Reported-by: Samuel Tranchet
Assisted-by: Javier Blazquez

Ref: https://bugs.chromium.org/p/boringssl/issues/detail?id=371
Ref: https://github.com/openssl/openssl/blob/OpenSSL_1_1_1g/include/openssl/ossl_typ.h#L66-L73

Fixes https://github.com/curl/curl/issues/5669
Closes https://github.com/curl/curl/pull/5857
2020-08-26 23:24:41 -04:00
Daniel Stenberg
80d73bcca2
tls: provide the CApath verbose log on its own line
... not newline separated from the previous line. This makes it output
asterisk prefixed properly like other verbose putput!

Reported-by: jmdavitt on github
Fixes #5826
Closes #5827
2020-08-19 15:55:50 +02:00
Marcel Raad
c71d8bb56d
openssl: fix build with LibreSSL < 2.9.1
`SSL_CTX_add0_chain_cert` and `SSL_CTX_clear_chain_certs` were
introduced in LibreSSL 2.9.1 [0].

[0] 0db809ee17

Closes https://github.com/curl/curl/pull/5757
2020-08-01 17:47:32 +02:00
Marcel Raad
0c6112a139
WIN32: stop forcing narrow-character API
Except where the results are only used for character output.
getenv is not touched because it's part of the public API, and having
it return UTF-8 instead of ANSI would be a breaking change.

Fixes https://github.com/curl/curl/issues/5658
Fixes https://github.com/curl/curl/issues/5712
Closes https://github.com/curl/curl/pull/5718
2020-07-27 10:42:38 +02:00
Daniel Stenberg
032e838b73
terminology: call them null-terminated strings
Updated terminology in docs, comments and phrases to refer to C strings
as "null-terminated". Done to unify with how most other C oriented docs
refer of them and what users in general seem to prefer (based on a
single highly unscientific poll on twitter).

Reported-by: coinhubs on github
Fixes #5598
Closes #5608
2020-06-28 00:31:24 +02:00