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path: root/lib/vtls/gtls.c
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2017-07-03gtls: fix build when sizeof(long) < sizeof(void *)Johannes Schindelin
- 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>
2017-06-16HTTPS-Proxy: don't offer h2 for https proxy connectionsJay Satiro
Bug: https://github.com/curl/curl/issues/1254 Closes #1546
2017-05-02gtls: fixed a lingering BUFSIZE referenceDan Fandrich
2017-04-22gnutls: removed some code when --disable-verbose is configuredDan Fandrich
This reduces the binary size and fixes a compile warning.
2017-04-18TLS: Fix switching off SSL session id when client cert is usedJay Satiro
Move the sessionid flag to ssl_primary_config so that ssl and proxy_ssl will each have their own sessionid flag. Regression since HTTPS-Proxy support was added in cb4e2be. Prior to that this issue had been fixed in 247d890, CVE-2016-5419. Bug: https://github.com/curl/curl/issues/1341 Reported-by: lijian996@users.noreply.github.com The new incarnation of this bug is called CVE-2017-7468 and is documented here: https://curl.haxx.se/docs/adv_20170419.html
2017-04-08vtls: fix unreferenced variable warningsMarcel Raad
... by moving the variables into the correct #ifdef block.
2017-04-06gtls: fix compiler warningMarcel Raad
Curl_timeleft returns time_t instead of long since commit 21aa32d30dbf319f2d336e0cb68d3a3235869fbb.
2017-03-08vtls: add options to specify range of enabled TLS versionsJozef Kralik
This commit introduces the CURL_SSLVERSION_MAX_* constants as well as the --tls-max option of the curl tool. Closes https://github.com/curl/curl/pull/1166
2017-01-28gnutls: disable TLS session ticketsMichael Kaufmann
SSL session reuse with TLS session tickets is not supported yet. Use SSL session IDs instead. Fixes https://github.com/curl/curl/issues/1109
2017-01-13gnutls: check for alpn and ocsp in configureMarcus Hoffmann
Check for presence of gnutls_alpn_* and gnutls_ocsp_* functions during configure instead of relying on the version number. GnuTLS has options to turn these features off and we ca just work with with such builds like we work with older versions. Signed-off-by: Marcus Hoffmann <m.hoffmann@cartelsol.com> Closes #1204
2017-01-12rand: make it work without TLS backingDaniel Stenberg
Regression introduced in commit f682156a4fc6c4 Reported-by: John Kohl Bug: https://curl.haxx.se/mail/lib-2017-01/0055.html
2016-12-23gnutls-random: check return code for failed randomDaniel Stenberg
2016-12-14checksrc: warn for assignments within if() expressionsDaniel Stenberg
... they're already frowned upon in our source code style guide, this now enforces the rule harder.
2016-12-13checksrc: stricter no-space-before-paren enforcementDaniel Stenberg
In order to make the code style more uniform everywhere
2016-11-25HTTPS Proxy: Implement CURLOPT_PROXY_PINNEDPUBLICKEYThomas Glanzmann
2016-11-24checksrc: move open braces to comply with function declaration styleDaniel Stenberg
2016-11-24checksrc: white space edits to comply to stricter checksrcDaniel Stenberg
2016-11-24checksrc: code style: use 'char *name' styleDaniel Stenberg
2016-11-24HTTPS-proxy: fixed mbedtls and polishingOkhin Vasilij
2016-11-24gtls: fix indent to silence compiler warningDaniel Stenberg
vtls/gtls.c: In function ‘Curl_gtls_data_pending’: vtls/gtls.c:1429:3: error: this ‘if’ clause does not guard... [-Werror=misleading-indentation] if(conn->proxy_ssl[connindex].session && ^~ vtls/gtls.c:1433:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ return res;
2016-11-24proxy: Support HTTPS proxy and SOCKS+HTTP(s)Alex Rousskov
* HTTPS proxies: An HTTPS proxy receives all transactions over an SSL/TLS connection. Once a secure connection with the proxy is established, the user agent uses the proxy as usual, including sending CONNECT requests to instruct the proxy to establish a [usually secure] TCP tunnel with an origin server. HTTPS proxies protect nearly all aspects of user-proxy communications as opposed to HTTP proxies that receive all requests (including CONNECT requests) in vulnerable clear text. With HTTPS proxies, it is possible to have two concurrent _nested_ SSL/TLS sessions: the "outer" one between the user agent and the proxy and the "inner" one between the user agent and the origin server (through the proxy). This change adds supports for such nested sessions as well. A secure connection with a proxy requires its own set of the usual SSL options (their actual descriptions differ and need polishing, see TODO): --proxy-cacert FILE CA certificate to verify peer against --proxy-capath DIR CA directory to verify peer against --proxy-cert CERT[:PASSWD] Client certificate file and password --proxy-cert-type TYPE Certificate file type (DER/PEM/ENG) --proxy-ciphers LIST SSL ciphers to use --proxy-crlfile FILE Get a CRL list in PEM format from the file --proxy-insecure Allow connections to proxies with bad certs --proxy-key KEY Private key file name --proxy-key-type TYPE Private key file type (DER/PEM/ENG) --proxy-pass PASS Pass phrase for the private key --proxy-ssl-allow-beast Allow security flaw to improve interop --proxy-sslv2 Use SSLv2 --proxy-sslv3 Use SSLv3 --proxy-tlsv1 Use TLSv1 --proxy-tlsuser USER TLS username --proxy-tlspassword STRING TLS password --proxy-tlsauthtype STRING TLS authentication type (default SRP) All --proxy-foo options are independent from their --foo counterparts, except --proxy-crlfile which defaults to --crlfile and --proxy-capath which defaults to --capath. Curl now also supports %{proxy_ssl_verify_result} --write-out variable, similar to the existing %{ssl_verify_result} variable. Supported backends: OpenSSL, GnuTLS, and NSS. * A SOCKS proxy + HTTP/HTTPS proxy combination: If both --socks* and --proxy options are given, Curl first connects to the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy. TODO: Update documentation for the new APIs and --proxy-* options. Look for "Added in 7.XXX" marks.
2016-11-09vtls: Fail on unrecognized param for CURLOPT_SSLVERSIONJay Satiro
- Fix GnuTLS code for CURL_SSLVERSION_TLSv1_2 that broke when the TLS 1.3 support was added in 6ad3add. - Homogenize across code for all backends the error message when TLS 1.3 is not available to "<backend>: TLS 1.3 is not yet supported". - Return an error when a user-specified ssl version is unrecognized. --- Prior to this change our code for some of the backends used the 'default' label in the switch statement (ie ver unrecognized) for ssl.version and treated it the same as CURL_SSLVERSION_DEFAULT. Bug: https://curl.haxx.se/mail/lib-2016-11/0048.html Reported-by: Kamil Dudka
2016-11-07vtls: support TLS 1.3 via CURL_SSLVERSION_TLSv1_3Kamil Dudka
Fully implemented with the NSS backend only for now. Reviewed-by: Ray Satiro
2016-10-31strcasecompare: replaced remaining rawstr.h with strcase.hDan Fandrich
This is a followup to commit 811a693b
2016-10-31strcasecompare: all case insensitive string compares ignore locale nowDaniel Stenberg
We had some confusions on when each function was used. We should not act differently on different locales anyway.
2016-10-18select: switch to macros in uppercaseDaniel Stenberg
Curl_select_ready() was the former API that was replaced with Curl_select_check() a while back and the former arg setup was provided with a define (in order to leave existing code unmodified). Now we instead offer SOCKET_READABLE and SOCKET_WRITABLE for the most common shortcuts where only one socket is checked. They're also more visibly macros.
2016-06-22internals: rename the SessionHandle struct to Curl_easyDaniel Stenberg
2016-06-22vtls: Only call add/getsession if session id is enabledJay Satiro
Prior to this change we called Curl_ssl_getsessionid and Curl_ssl_addsessionid regardless of whether session ID reusing was enabled. According to comments that is in case session ID reuse was disabled but then later enabled. The old way was not intuitive and probably not something users expected. When a user disables session ID caching I'd guess they don't expect the session ID to be cached anyway in case the caching is later enabled.
2016-06-01vtls: fix ssl session cache race conditionIvan Avdeev
Sessionid cache management is inseparable from managing individual session lifetimes. E.g. for reference-counted sessions (like those in SChannel and OpenSSL engines) every session addition and removal should be accompanied with refcount increment and decrement respectively. Failing to do so synchronously leads to a race condition that causes symptoms like use-after-free and memory corruption. This commit: - makes existing session cache locking explicit, thus allowing individual engines to manage lock's scope. - fixes OpenSSL and SChannel engines by putting refcount management inside this lock's scope in relevant places. - adds these explicit locking calls to other engines that use sessionid cache to accommodate for this change. Note, however, that it is unknown whether any of these engines could also have this race. Bug: https://github.com/curl/curl/issues/815 Fixes #815 Closes #847
2016-05-09TLS: move the ALPN/NPN enable bits to the connectionDaniel Stenberg
Only protocols that actually have a protocol registered for ALPN and NPN should try to get that negotiated in the TLS handshake. That is only HTTPS (well, http/1.1 and http/2) right now. Previously ALPN and NPN would wrongly be used in all handshakes if libcurl was built with it enabled. Reported-by: Jay Satiro Fixes #789
2016-04-03code: style updatesDaniel Stenberg
2016-02-13gtls: fix for builds lacking encrypted key file supportShine Fan
Bug: https://github.com/curl/curl/pull/651
2016-02-08configure: --with-ca-fallback: use built-in TLS CA fallbackLudwig Nussel
When trying to verify a peer without having any root CA certificates set, this makes libcurl use the TLS library's built in default as fallback. Closes #569
2016-02-04URLs: change more http to httpsViktor Szakats
2016-02-03URLs: change all http:// URLs to https://Daniel Stenberg
2015-12-13http: add libcurl option to allow HTTP/2 for HTTPS onlyDaniel Stenberg
... and stick to 1.1 for HTTP. This is in line with what browsers do and should have very little risk.
2015-11-24Revert "cleanup: general removal of TODO (and similar) comments"Daniel Stenberg
This reverts commit 64e959ffe37c436503f9fed1ce2d6ee6ae50bd9a. Feedback-by: Dan Fandrich URL: http://curl.haxx.se/mail/lib-2015-11/0062.html
2015-11-13cleanup: general removal of TODO (and similar) commentsDaniel Stenberg
They tend to never get updated anyway so they're frequently inaccurate and we never go back to revisit them anyway. We document issues to work on properly in KNOWN_BUGS and TODO instead.
2015-09-23gnutls: Report actual GnuTLS error message for certificate errorsMike Crowe
If GnuTLS fails to read the certificate then include whatever reason it provides in the failure message reported to the client. Signed-off-by: Mike Crowe <mac@mcrowe.com>
2015-09-22gnutls: Support CURLOPT_KEYPASSWDMike Crowe
The gnutls vtls back-end was previously ignoring any password set via CURLOPT_KEYPASSWD. Presumably this was because gnutls_certificate_set_x509_key_file did not support encrypted keys. gnutls now has a gnutls_certificate_set_x509_key_file2 function that does support encrypted keys. Let's determine at compile time whether the available gnutls supports this new function. If it does then use it to pass the password. If it does not then emit a helpful diagnostic if a password is set. This is preferable to the previous behaviour of just failing to read the certificate without giving a reason in that case. Signed-off-by: Mike Crowe <mac@mcrowe.com>
2015-09-19ssl: add server cert's "sha256//" hash to verboseDaniel Hwang
Add a "pinnedpubkey" section to the "Server Certificate" verbose Bug: https://github.com/bagder/curl/issues/410 Reported-by: W. Mark Kubacki Closes #430 Closes #410
2015-07-01SSL: Pinned public key hash supportmoparisthebest
2015-06-01curl_setup: Add macros for FOPEN_READTEXT, FOPEN_WRITETEXTJay Satiro
- Change fopen calls to use FOPEN_READTEXT instead of "r" or "rt" - Change fopen calls to use FOPEN_WRITETEXT instead of "w" or "wt" This change is to explicitly specify when we need to read/write text. Unfortunately 't' is not part of POSIX fopen so we can't specify it directly. Instead we now have FOPEN_READTEXT, FOPEN_WRITETEXT. Prior to this change we had an issue on Windows if an application that uses libcurl overrides the default file mode to binary. The default file mode in Windows is normally text mode (translation mode) and that's what libcurl expects. Bug: https://github.com/bagder/curl/pull/258#issuecomment-107093055 Reported-by: Orgad Shaneh
2015-05-20gtls: don't fail on non-fatal alerts during handshakeDmitry Eremin-Solenikov
Stop curl from failing when non-fatal alert is received during handshake. This e.g. fixes lots of problems when working with https sites through proxies.
2015-05-04gtls: properly retrieve certificate statusAlessandro Ghedini
Also print the revocation reason if appropriate.
2015-03-21gtls: add check of return codeDaniel Stenberg
Coverity CID 1291167 pointed out that 'rc' was received but never used when gnutls_credentials_set() was used. Added return code check now.
2015-03-21gtls: dereferencing NULL pointerDaniel Stenberg
Coverity CID 1291165 pointed out 'chainp' could be dereferenced when NULL if gnutls_certificate_get_peers() had previously failed.
2015-03-21gtls: avoid uninitialized variable.Daniel Stenberg
Coverity CID 1291166 pointed out that we could read this variable uninitialized.
2015-03-20gtls: implement CURLOPT_CERTINFOAlessandro Ghedini
2015-03-17checksrc: use space after commaDaniel Stenberg
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