Commit Graph

181 Commits

Author SHA1 Message Date
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
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
Joel Depooter
df957e1003
schannel: move the algIds array out of schannel.h
This array is only used by the SCHANNEL_CRED struct in the
schannel_acquire_credential_handle function. It can therefore be kept as
a local variable. This is a minor update to
bbb71507b7.

This change also updates the NUM_CIPHERS value to accurately count the
number of ciphers options listed in schannel.c, which is 47 instead of
45. It is unlikely that anyone tries to set all 47 values, but if they
had tried, the last two would not have been set.

Closes #8469
2022-02-18 08:03:22 +01:00
Jay Satiro
598b142f6d schannel: restore debug message in schannel_connect_step2
This is a follow-up to recent commit 2218c3a which removed the debug
message to avoid an unused variable warning. The message has been
reworked to avoid the warning.

Ref: https://github.com/curl/curl/pull/8320#issuecomment-1022957904

Closes https://github.com/curl/curl/pull/8336
2022-01-28 02:42:57 -05:00
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
21248e052d
checksrc: detect more kinds of NULL comparisons we avoid
Co-authored-by: Jay Satiro
Closes #8180
2021-12-27 23:39:26 +01:00
Daniel Stenberg
b8ef4a845b
schannel: remove the BACKEND define kludge
Closes #8182
2021-12-26 11:59:28 +01:00
Wyatt O'Day
7da636cad5 version_win32: Check build number and platform id
Prior to this change the build number was not checked during version
comparison, and the platform id was supposed to be checked but wasn't.

Checking the build number is required for enabling "evergreen"
Windows 10/11 features (like TLS 1.3).

Ref: https://github.com/curl/curl/pull/7784

Closes https://github.com/curl/curl/pull/7824
Closes https://github.com/curl/curl/pull/7867
2021-12-02 03:39:14 -05:00
Jay Satiro
90e74206b9 schannel: fix memory leak due to failed SSL connection
- Call schannel_shutdown if the SSL connection fails.

Prior to this change schannel_shutdown (which shuts down the SSL
connection as well as memory cleanup) was not called when the SSL
connection failed (eg due to failed handshake).

Co-authored-by: Gisle Vanem

Fixes https://github.com/curl/curl/issues/7877
Closes https://github.com/curl/curl/pull/7878
2021-11-02 15:34:04 -04:00
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
Joel Depooter
bb72392647 schannel: fix typo
Closes https://github.com/curl/curl/pull/7769
2021-09-24 01:33:11 -04:00
Jay Satiro
7d76be33d4 schannel: Work around typo in classic mingw macro
- Define ALG_CLASS_DHASH (the typo from the include) to ALG_CLASS_HASH.

Prior to this change there was an incomplete fix to ignore the
CALG_TLS1PRF macro on those versions of MinGW where it uses the
ALG_CLASS_DHASH typoed macro.

Ref: 48cf45c
Ref: https://osdn.net/projects/mingw/ticket/38391
Ref: https://github.com/curl/curl/issues/2924

Closes https://github.com/curl/curl/pull/7580
2021-08-21 03:05:33 -04:00
MAntoniak
fd84db600d
build: fix compiler warnings
For when CURL_DISABLE_VERBOSE_STRINGS and DEBUGBUILD flags are both
active.

- socks.c : warning C4100: 'lineno': unreferenced formal parameter
  (co-authored by Daniel Stenberg)

- mbedtls.c: warning C4189: 'port': local variable is initialized but
  not referenced

- schannel.c: warning C4189: 'hostname': local variable is initialized
  but not referenced

Cloes #7528
2021-08-14 23:19:24 +02:00
Gisle Vanem
c6fd7cbf10 [SChannel] Use '_tcsncmp()' instead
Revert previous change for PellesC. 

Instead replace all use of `_tcsnccmp()` with `_tcsncmp()`.
2021-07-16 07:30:35 +02:00
Gisle Vanem
3cd9a23e80 [PellesC] missing '_tcsnccmp'
PellesC compiler does not have this macro in it's `<tchar.h>`
2021-07-16 07:30:35 +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
Ebe Janchivdorj
68d388061c
schannel: move code out of SChannel_connect_step1
Reviewed-by: Marc Hoersken
Closes #7168
2021-06-04 23:16:55 +02:00
Joel Depooter
ee97f17697
schannel: set ALPN length correctly for HTTP/2
In a3268eca79 this code was changed to use the ALPN_H2 constant
instead of the NGHTTP2_PROTO_ALPN constant. However, these constants are
not the same. The nghttp2 constant included the length of the string,
like this: "\x2h2". The ALPN_H2 constant is just "h2". Therefore we need
to re-add the length of the string to the ALPN buffer.

Closes #7138
2021-05-27 08:27:35 +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
Daniel Stenberg
bbb71507b7
schannel: don't use static to store selected ciphers
CVE-2021-22897

Bug: https://curl.se/docs/CVE-2021-22897.html
2021-05-24 07:56:05 +02:00
Joel Depooter
ba3452cafc schannel: Ensure the security context request flags are always set
As of commit 54e7475, these flags would only be set when using a new
credential handle. When re-using an existing credential handle, the
flags would not be set.

Closes https://github.com/curl/curl/pull/7051
2021-05-13 03:07:21 -04:00
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
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
Morten Minde Neergaard
67d3afa73f schannel: Support strong crypto option
- Support enabling strong crypto via optional user cipher list when
  USE_STRONG_CRYPTO or SCH_USE_STRONG_CRYPTO is in the list.

MSDN says SCH_USE_STRONG_CRYPTO "Instructs Schannel to disable known
weak cryptographic algorithms, cipher suites, and SSL/TLS protocol
versions that may be otherwise enabled for better interoperability."

Ref: https://curl.se/mail/lib-2021-02/0066.html
Ref: https://curl.se/docs/manpage.html#--ciphers
Ref: https://curl.se/libcurl/c/CURLOPT_SSL_CIPHER_LIST.html
Ref: https://docs.microsoft.com/en-us/windows/win32/api/schannel/ns-schannel-schannel_cred

Closes https://github.com/curl/curl/pull/6734
2021-04-22 17:40:19 -04:00
Jay Satiro
54e7475016 schannel: Disable auto credentials; add an option to enable it
- Disable auto credentials by default. This is a breaking change
  for clients that are using it, wittingly or not.

- New libcurl ssl option value CURLSSLOPT_AUTO_CLIENT_CERT tells libcurl
  to automatically locate and use a client certificate for
  authentication, when requested by the server.

- New curl tool options --ssl-auto-client-cert and
  --proxy-ssl-auto-client-cert map to CURLSSLOPT_AUTO_CLIENT_CERT.

This option is only supported for Schannel (the native Windows SSL
library). Prior to this change Schannel would, with no notification to
the client, attempt to locate a client certificate and send it to the
server, when requested by the server. Since the server can request any
certificate that supports client authentication in the OS certificate
store it could be a privacy violation and unexpected.

Fixes https://github.com/curl/curl/issues/2262
Reported-by: Jeroen Ooms
Assisted-by: Wes Hinsley
Assisted-by: Rich FitzJohn

Ref: https://curl.se/mail/lib-2021-02/0066.html
Reported-by: Morten Minde Neergaard

Closes https://github.com/curl/curl/pull/6673
2021-04-22 16:53:37 -04:00
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
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
Daniel Stenberg
f573998c22
TLS: fix HTTP/2 selection
for GnuTLS, BearSSL, mbedTLS, NSS, SChannnel, Secure Transport and
wolfSSL...

Regression since 88dd1a8a11 (shipped in 7.76.0)
Reported-by: Kenneth Davidson
Reported-by: romamik om github
Fixes #6825
Closes #6827
2021-04-02 22:53:17 +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
Jay Satiro
7a33c4dff9 schannel: Evaluate CURLOPT_SSL_OPTIONS via SSL_SET_OPTION macro
- Change use of those options from CURLOPT_SSL_OPTIONS that are not
  already evaluated via SSL_SET_OPTION in schannel and secure transport
  to use that instead of data->set.ssl.optname.

Example:

Evaluate SSL_SET_OPTION(no_revoke) instead of data->set.ssl.no_revoke.

This change is because options set via CURLOPT_SSL_OPTIONS
(data->set.ssl.optname) are separate from those set for HTTPS proxy via
CURLOPT_PROXY_SSL_OPTIONS (data->set.proxy_ssl.optname). The
SSL_SET_OPTION macro determines whether the connection is for HTTPS
proxy and based on that which option to evaluate.

Since neither Schannel nor Secure Transport backends currently support
HTTPS proxy in libcurl, this change is for posterity and has no other
effect.

Closes https://github.com/curl/curl/pull/6690
2021-03-06 02:01:35 -05:00
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
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
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
68dde8e330
schannel: fix "empty expression statement has no effect"
Bug: 8ab78f720a (commitcomment-45445950)
Reported-by: Gisle Vanem
Closes #6381
2020-12-29 17:10:47 +01:00
Daniel Stenberg
4d2f800677
curl.se: new home
Closes #6172
2020-11-04 23:59:47 +01:00
Daniel Stenberg
abeeffb11c
schannel: return CURLE_PEER_FAILED_VERIFICATION for untrusted root
This matches what is returned in other TLS backends in the same
situation.

Reviewed-by: Jay Satiro
Reviewed-by: Emil Engler
Follow-up to 5a3efb1
Reported-by: iammrtau on github
Fixes #6003
Closes #6018
2020-09-28 10:41:51 +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
add7022666
schannel: make it 'struct Curl_schannel*'
As internal global names should use captical C.

Closes #5906
2020-09-02 22:41:59 +02:00
fullincome
01e2679b49
schannel: fix memory leak when using get_cert_location
The get_cert_location function allocates memory only on success.
Previously get_cert_location was able to allocate memory and return
error. It wasn't obvious and in this case the memory wasn't
released.

Fixes #5855
Closes #5860
2020-08-26 22:54:11 +02:00
Cameron Cawley
790137b0f7
win32: Add Curl_verify_windows_version() to curlx
Closes https://github.com/curl/curl/pull/5754
2020-08-02 17:58:44 +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
Saleem Abdulrasool
21ed48e8d9
vtls: repair the build with CURL_DISABLE_PROXY
`http_proxy` will not be available in `conndata` if `CURL_DISABLE_PROXY`
is enabled.  Repair the build with that configuration.

Follow-up to f3d501dc67

Closes #5498
2020-06-01 23:03:31 +02:00
Daniel Stenberg
842f73de58
timeouts: change millisecond timeouts to timediff_t from time_t
For millisecond timers we like timediff_t better. Also, time_t can be
unsigned so returning a negative value doesn't work then.

Closes #5479
2020-05-30 23:10:57 +02:00
Viktor Szakats
308c243db5
all: fix codespell errors
Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg
Closes https://github.com/curl/curl/pull/5452
2020-05-25 19:44:04 +00:00