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2017-04-17openssl: fix thread-safety bugs in error-handlingDavid Benjamin
ERR_error_string with NULL parameter is not thread-safe. The library writes the string into some static buffer. Two threads doing this at once may clobber each other and run into problems. Switch to ERR_error_string_n which avoids this problem and is explicitly bounds-checked. Also clean up some remnants of OpenSSL 0.9.5 around here. A number of comments (fixed buffer size, explaining that ERR_error_string_n was added in a particular version) date to when ossl_strerror tried to support pre-ERR_error_string_n OpenSSLs. Closes #1424
2017-04-17openssl: make SSL_ERROR_to_str more future-proofDavid Benjamin
Rather than making assumptions about the values, use a switch-case. Closes #1424
2017-04-10openssl: fix this statement may fall through [-Wimplicit-fallthrough=]Alexis La Goutte
Closes #1402
2017-04-08vtls: fix unreferenced variable warningsMarcel Raad
... by moving the variables into the correct #ifdef block.
2017-03-28openssl: exclude DSA code when OPENSSL_NO_DSA is definedJay Satiro
- Fix compile errors that occur in openssl.c when OpenSSL lib was built without DSA support. Bug: https://github.com/curl/curl/issues/1361 Reported-by: neheb@users.noreply.github.com
2017-03-26spelling fixesklemens
Closes #1356
2017-03-23openssl: fix comparison between signed and unsigned integer expressionsDaniel Stenberg
2017-03-23openssl: made the error table static constDan Fandrich
2017-03-23openssl: fall back on SSL_ERROR_* string when no error detailJay Satiro
- If SSL_get_error is called but no extended error detail is available then show that SSL_ERROR_* as a string. Prior to this change there was some inconsistency in that case: the SSL_ERROR_* code may or may not have been shown, or may have been shown as unknown even if it was known. Ref: https://github.com/curl/curl/issues/1300 Closes https://github.com/curl/curl/pull/1348
2017-03-13Improve code readbilitySylvestre Ledru
... by removing the else branch after a return, break or continue. Closes #1310
2017-03-10openssl: add two /* FALLTHROUGH */ to satisfy coverityDaniel Stenberg
CID 1402159 and 1402158
2017-03-08openssl: unbreak the build after 6448f98c1857deDaniel Stenberg
Verified with OpenSSL 1.1.0e and OpenSSL master (1.1.1)
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
2017-03-03build: fix gcc7 implicit fallthrough warningsAlexis La Goutte
Mark intended fallthroughs with /* FALLTHROUGH */ so that gcc will know it's expected and won't warn on [-Wimplicit-fallthrough=]. Closes https://github.com/curl/curl/pull/1297
2017-01-31openssl: Don't use certificate after transferring ownershipAdam Langley
SSL_CTX_add_extra_chain_cert takes ownership of the given certificate while, despite the similar name, SSL_CTX_add_client_CA does not. Thus it's best to call SSL_CTX_add_client_CA before SSL_CTX_add_extra_chain_cert, while the code still has ownership of the argument. Closes https://github.com/curl/curl/pull/1236
2017-01-17openssl: Fix random generationJay Satiro
- Fix logic error in Curl_ossl_random. Broken a few days ago in 807698d.
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
2016-12-23openssl-random: check return code when asking for randomDaniel Stenberg
and fail appropriately if it returns error
2016-12-18openssl: simplify expression in Curl_ossl_versionMichael Kaufmann
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
2016-12-07openssl: don't use OpenSSL's ERR_PACK.Adam Langley
ERR_PACK is an internal detail of OpenSSL. Also, when using it, a function name must be specified which is overly specific: the test will break whenever OpenSSL internally change things so that a different function creates the error. Closes #1157
2016-11-25HTTPS Proxy: Implement CURLOPT_PROXY_PINNEDPUBLICKEYThomas Glanzmann
2016-11-24checksrc: white space edits to comply to stricter checksrcDaniel Stenberg
2016-11-24checksrc: code style: use 'char *name' styleDaniel Stenberg
2016-11-24openssl: remove dead codeDaniel Stenberg
Coverity CID 1394666
2016-11-24HTTPS-proxy: fixed mbedtls and polishingOkhin Vasilij
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.
2016-11-19vtls: fix build warningsMarcel Raad
Fix warnings about conversions from long to time_t in openssl.c and schannel.c. Follow-up to de4de4e3c7c
2016-11-11openssl: make sure to fail in the unlikely event that PRNG seeding failsDaniel Stenberg
2016-11-11openssl: avoid unnecessary seeding if already doneDaniel Stenberg
1.1.0+ does more of this by itself so we can avoid extra processing this way.
2016-11-11openssl: RAND_status always exists in OpenSSL >= 0.9.7Daniel Stenberg
and remove RAND_screen from configure since nothing is using that function
2016-11-10openssl: raise the max_version to 1.3 if asked forDaniel Stenberg
Now I've managed to negotiate TLS 1.3 with https://enabled.tls13.com/ when using boringssl.
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
2016-11-07openssl: initial TLS 1.3 adaptionsDaniel Stenberg
BoringSSL supports TLSv1.3 already, but these changes don't seem to be anough to get it working.
2016-11-07s/cURL/curlDaniel Stenberg
We're mostly saying just "curl" in lower case these days so here's a big cleanup to adapt to this reality. A few instances are left as the project could still formally be considered called cURL.
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.
2016-10-31strcasecompare: is the new name for strequal()Daniel Stenberg
... to make it less likely that we forget that the function actually does case insentive compares. Also replaced several invokes of the function with a plain strcmp when case sensitivity is not an issue (like comparing with "-").
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.
2016-09-19libressl: fix version outputBernard Spil
LibreSSL defines `OPENSSL_VERSION_NUMBER` as `0x20000000L` for all versions returning `LibreSSL/2.0.0` for any LibreSSL version. This change provides a local OpenSSL_version_num function replacement returning LIBRESSL_VERSION_NUMBER instead. Closes #1029
2016-09-19openssl: don't call ERR_remote_thread_state on >= 1.1.0Daniel Stenberg
Follow-up fix to d9321562
2016-09-19openssl: don’t call CRYTPO_cleanup_all_ex_dataDaniel Stenberg
The OpenSSL function CRYTPO_cleanup_all_ex_data() cannot be called multiple times without crashing - and other libs might call it! We basically cannot call it without risking a crash. The function is a no-op since OpenSSL 1.1.0. Not calling this function only risks a small memory leak with OpenSSL < 1.1.0. Bug: https://curl.haxx.se/mail/lib-2016-09/0045.html Reported-by: Todd Short
2016-09-14openssl: fix per-thread memory leak usiong 1.0.1 or 1.0.2Daniel Stenberg
OpenSSL 1.0.1 and 1.0.2 build an error queue that is stored per-thread so we need to clean it when easy handles are freed, in case the thread will be killed in which the easy handle was used. All OpenSSL code in libcurl should extract the error in association with the error already so clearing this queue here should be harmless at worst. Fixes #964
2016-09-09openssl: fix bad memory free (regression)Daniel Stenberg
... by partially reverting f975f06033b1. The allocation could be made by OpenSSL so the free must be made with OPENSSL_free() to avoid problems. Reported-by: Harold Stuart Fixes #1005
2016-09-06openssl: fix CURLINFO_SSL_VERIFYRESULTGaurav Malhotra
CURLINFO_SSL_VERIFYRESULT does not get the certificate verification result when SSL_connect fails because of a certificate verification error. This fix saves the result of SSL_get_verify_result so that it is returned by CURLINFO_SSL_VERIFYRESULT. Closes https://github.com/curl/curl/pull/995
2016-09-05openssl: Fix compilation with OPENSSL_API_COMPAT=0x10100000LMarcel Raad
With OPENSSL_API_COMPAT=0x10100000L (OpenSSL 1.1 API), the cleanup functions are unavailable (they're no-ops anyway in OpenSSL 1.1). The replacements for SSL_load_error_strings, SSLeay_add_ssl_algorithms, and OpenSSL_add_all_algorithms are called automatically [1][2]. SSLeay() is now called OpenSSL_version_num(). [1]: https://www.openssl.org/docs/man1.1.0/ssl/OPENSSL_init_ssl.html [2]: https://www.openssl.org/docs/man1.1.0/crypto/OPENSSL_init_crypto.html Closes #992
2016-08-25openssl: make build with 1.1.0 againDaniel Stenberg
synced with OpenSSL git master commit cc06906707
2016-08-16openssl: use regular malloc instead of OPENSSL_mallocDaniel Stenberg
This allows for better memmory debugging and torture tests.
2016-08-13openssl: accept subjectAltName iPAddress if no dNSName matchJay Satiro
Undo change introduced in d4643d6 which caused iPAddress match to be ignored if dNSName was present but did not match. Also, if iPAddress is present but does not match, and dNSName is not present, fail as no-match. Prior to this change in such a case the CN would be checked for a match. Bug: https://github.com/curl/curl/issues/959 Reported-by: wmsch@users.noreply.github.com
2016-06-22internals: rename the SessionHandle struct to Curl_easyDaniel Stenberg
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