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2018-12-05nss: Fall back to latest supported SSL versionPaul Howarth
NSS may be built without support for the latest SSL/TLS versions, leading to "SSL version range is not valid" errors when the library code supports a recent version (e.g. TLS v1.3) but it has explicitly been disabled. This change adjusts the maximum SSL version requested by libcurl to be the maximum supported version at runtime, as long as that version is at least as high as the minimum version required by libcurl. Fixes #3261
2018-11-23snprintf: renamed and we now only use msnprintf()Daniel Stenberg
The function does not return the same value as snprintf() normally does, so readers may be mislead into thinking the code works differently than it actually does. A different function name makes this easier to detect. Reported-by: Tomas Hoger Assisted-by: Daniel Gustafsson Fixes #3296 Closes #3297
2018-11-21openssl: support session resume with TLS 1.3Michael Kaufmann
Session resumption information is not available immediately after a TLS 1.3 handshake. The client must wait until the server has sent a session ticket. Use OpenSSL's "new session" callback to get the session information and put it into curl's session cache. For TLS 1.3 sessions, this callback will be invoked after the server has sent a session ticket. The "new session" callback is invoked only if OpenSSL's session cache is enabled, so enable it and use the "external storage" mode which lets curl manage the contents of the session cache. A pointer to the connection data and the sockindex are now saved as "SSL extra data" to make them available to the callback. This approach also works for old SSL/TLS versions and old OpenSSL versions. Reviewed-by: Daniel Stenberg <daniel@haxx.se> Fixes #3202 Closes #3271
2018-11-21ssl: fix compilation with OpenSSL 0.9.7Michael Kaufmann
- ENGINE_cleanup() was used without including "openssl/engine.h" - enable engine support for OpenSSL 0.9.7 Closes #3266
2018-11-21openssl: disable TLS renegotiation with BoringSSLDaniel Stenberg
Since we're close to feature freeze, this change disables this feature with an #ifdef. Define ALLOW_RENEG at build-time to enable. This could be converted to a bit for CURLOPT_SSL_OPTIONS to let applications opt-in this. Concern-raised-by: David Benjamin Fixes #3283 Closes #3293
2018-11-20ssl: replace all internal uses of CURLE_SSL_CACERTHan Han
Closes #3291
2018-11-16openssl: do not log excess "TLS app data" lines for TLS 1.3Peter Wu
The SSL_CTX_set_msg_callback callback is not just called for the Handshake or Alert protocols, but also for the raw record header (SSL3_RT_HEADER) and the decrypted inner record type (SSL3_RT_INNER_CONTENT_TYPE). Be sure to ignore the latter to avoid excess debug spam when using `curl -v` against a TLSv1.3-enabled server: * TLSv1.3 (IN), TLS app data, [no content] (0): (Following this message, another callback for the decrypted handshake/alert messages will be be present anyway.) Closes https://github.com/curl/curl/pull/3281
2018-11-13nss: remove version selecting dead codeKamil Dudka
Closes #3262
2018-11-13nss: set default max-tls to 1.3/1.2Daniel Stenberg
Fixes #3261
2018-11-12nss: fix fallthrough comment to fix picky compiler warningDaniel Stenberg
2018-11-09openssl: support BoringSSL TLS renegotiationJérémy Rocher
As per BoringSSL porting documentation [1], BoringSSL rejects peer renegotiations by default. curl fails when trying to authenticate to server through client certificate if it is requested by server after the initial TLS handshake. Enable renegotiation by default with BoringSSL to get same behavior as with OpenSSL. This is done by calling SSL_set_renegotiate_mode [2] which was introduced in commit 1d5ef3bb1eb9 [3]. 1 - https://boringssl.googlesource.com/boringssl/+/HEAD/PORTING.md#tls-renegotiation 2 - https://boringssl.googlesource.com/boringssl/+/master/include/openssl/ssl.h#3482 3 - https://boringssl.googlesource.com/boringssl/+/1d5ef3bb1eb97848617db5e7d633d735a401df86 Signed-off-by: Jérémy Rocher <rocher.jeremy@gmail.com> Fixes #3258 Closes #3259
2018-11-07winssl: be consistent in Schannel capitalizationDaniel Gustafsson
The productname from Microsoft is "Schannel", but in infof/failf reporting we use "schannel". This removes different versions. Closes #3243 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-11-01axtls: removedDaniel Stenberg
As has been outlined in the DEPRECATE.md document, the axTLS code has been disabled for 6 months and is hereby removed. Use a better supported TLS library! Assisted-by: Daniel Gustafsson Closes #3194
2018-11-01schannel: make CURLOPT_CERTINFO support using Issuer chainmarcosdiazr
Closes #3197
2018-11-01schannel: use Curl_ prefix for global private symbolsDaniel Stenberg
Curl_verify_certificate() must use the Curl_ prefix since it is globally available in the lib and otherwise steps outside of our namespace! Closes #3201
2018-10-30vtls: add MesaLink to curl_sslbackend enumDaniel Gustafsson
MesaLink support was added in commit 57348eb97d1b8fc3742e02c but the backend was never added to the curl_sslbackend enum in curl/curl.h. This adds the new backend to the enum and updates the relevant docs. Closes #3195 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-10-27openssl: output the correct cipher list on TLS 1.3 errorDaniel Stenberg
When failing to set the 1.3 cipher suite, the wrong string pointer would be used in the error message. Most often saying "(nil)". Reported-by: Ricky-Tigg on github Fixes #3178 Closes #3180
2018-10-26openssl: make 'done' a proper booleanDaniel Gustafsson
Closes #3176
2018-10-26gtls: Values stored to but never readDaniel Stenberg
Detected by clang-tidy Closes #3176
2018-10-18travis: add build for "configure --disable-verbose"Daniel Stenberg
Closes #3144
2018-10-08spelling fixes [ci skip]Viktor Szakats
as detected by codespell 1.14.0 Closes https://github.com/curl/curl/pull/3114 Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>
2018-10-07gskit: make sure to terminate version stringDaniel Gustafsson
In case a very small buffer was passed to the version function, it could result in the buffer not being NULL-terminated since strncpy() doesn't guarantee a terminator on an overflowed buffer. Rather than adding code to terminate (and handle zero-sized buffers), move to using snprintf() instead like all the other vtls backends. Closes #3105 Reviewed-by: Daniel Stenberg <daniel@haxx.se> Reviewed-by: Viktor Szakats <commit@vszakats.net>
2018-10-03memory: ensure to check allocation resultsDaniel Gustafsson
The result of a memory allocation should always be checked, as we may run under memory pressure where even a small allocation can fail. This adds checking and error handling to a few cases where the allocation wasn't checked for success. In the ftp case, the freeing of the path variable is moved ahead of the allocation since there is little point in keeping it around across the strdup, and the separation makes for more readable code. In nwlib, the lock is aslo freed in the error path. Also bumps the copyright years on affected files. Closes #3084 Reviewed-by: Jay Satiro <raysatiro@yahoo.com> Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-10-03nss: fix nssckbi module loading on WindowsJay Satiro
- Use .DLL extension instead of .so to load modules on Windows. Bug: https://curl.haxx.se/mail/lib-2018-09/0077.html Reported-by: Maxime Legros Ref: https://github.com/curl/curl/pull/3016/#issuecomment-423069442 Closes https://github.com/curl/curl/pull/3086
2018-09-24openssl: load built-in engines tooDaniel Stenberg
Regression since 38203f1 Reported-by: Jean Fabrice Fixes #3023 Closes #3040
2018-09-24OpenSSL: enable TLS 1.3 post-handshake authChristian Heimes
OpenSSL 1.1.1 requires clients to opt-in for post-handshake authentication. Fixes: https://github.com/curl/curl/issues/3026 Signed-off-by: Christian Heimes <christian@python.org> Closes https://github.com/curl/curl/pull/3027
2018-09-23whitespace fixesViktor Szakats
- replace tabs with spaces where possible - remove line ending spaces - remove double/triple newlines at EOF - fix a non-UTF-8 character - cleanup a few indentations/line continuations in manual examples Closes https://github.com/curl/curl/pull/3037
2018-09-21GnutTLS: TLS 1.3 supportLoganaden Velvindron
Closes #2971
2018-09-20vtls: fix ssl version "or later" behavior change for many backendsJay Satiro
- Treat CURL_SSLVERSION_MAX_NONE the same as CURL_SSLVERSION_MAX_DEFAULT. Prior to this change NONE would mean use the minimum version also as the maximum. This is a follow-up to 6015cef which changed the behavior of setting the SSL version so that the requested version would only be the minimum and not the maximum. It appears it was (mostly) implemented in OpenSSL but not other backends. In other words CURL_SSLVERSION_TLSv1_0 used to mean use just TLS v1.0 and now it means use TLS v1.0 *or later*. - Fix CURL_SSLVERSION_MAX_DEFAULT for OpenSSL. Prior to this change CURL_SSLVERSION_MAX_DEFAULT with OpenSSL was erroneously treated as always TLS 1.3, and would cause an error if OpenSSL was built without TLS 1.3 support. Co-authored-by: Daniel Gustafsson Fixes https://github.com/curl/curl/issues/2969 Closes https://github.com/curl/curl/pull/3012
2018-09-19nss: try to connect even if libnssckbi.so fails to loadKamil Dudka
One can still use CA certificates stored in NSS database. Reported-by: Maxime Legros Bug: https://curl.haxx.se/mail/lib-2018-09/0077.html Closes #3016
2018-09-18darwinssl: Fix realloc memleakDaniel Gustafsson
The reallocation was using the input pointer for the return value, which leads to a memory leak on reallication failure. Fix by instead use the safe internal API call Curl_saferealloc(). Closes #3005 Reviewed-by: Daniel Stenberg <daniel@haxx.se> Reviewed-by: Nick Zitzmann <nickzman@gmail.com>
2018-09-14openssl: show "proper" version number for libressl buildsDaniel Stenberg
Closes #2989
2018-09-14openssl: assume engine support in 0.9.8 or laterRainer Jung
Fixes #2983 Closes #2988
2018-09-13sendf: Fix whitespace in infof/failf concatenationDaniel Gustafsson
Strings broken on multiple rows in the .c file need to have appropriate whitespace padding on either side of the concatenation point to render a correct amalgamated string. Fix by adding a space at the occurrences found. Closes #2986 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2018-09-13vtls: add a MesaLink vtls backendYiming Jing
Closes #2984
2018-09-12openssl: fix gcc8 warningJay Satiro
- Use memcpy instead of strncpy to copy a string without termination, since gcc8 warns about using strncpy to copy as many bytes from a string as its length. Suggested-by: Viktor Szakats Closes https://github.com/curl/curl/issues/2980
2018-09-07configure: add option to disable automatic OpenSSL config loadingPhilipp Waehnert
Sometimes it may be considered a security risk to load an external OpenSSL configuration automatically inside curl_global_init(). The configuration option --disable-ssl-auto-load-config disables this automatism. The Windows build scripts winbuild/Makefile.vs provide a corresponding option ENABLE_SSL_AUTO_LOAD_CONFIG accepting a boolean value. Setting neither of these options corresponds to the previous behavior loading the external OpenSSL configuration automatically. Fixes #2724 Closes #2791
2018-09-07schannel: avoid switch-cases that go to default anywayDaniel Stenberg
SEC_E_APPLICATION_PROTOCOL_MISMATCH isn't defined in some versions of mingw and would require an ifdef otherwise. Reported-by: Thomas Glanzmann Approved-by: Marc Hörsken Bug: https://curl.haxx.se/mail/lib-2018-09/0020.html Closes #2950
2018-09-06ssl: deprecate CURLE_SSL_CACERT in favour of a unified error codeHan Han
Long live CURLE_PEER_FAILED_VERIFICATION
2018-09-06openssl: return CURLE_PEER_FAILED_VERIFICATION on failure to parse issuerHan Han
Failure to extract the issuer name from the server certificate should return a more specific error code like on other TLS backends.
2018-09-06schannel: unified error code handlingHan Han
Closes #2901
2018-09-06darwinssl: more specific and unified error codesHan Han
Closes #2901
2018-09-03url, vtls: make CURLOPT{,_PROXY}_TLS13_CIPHERS workKamil Dudka
This is a follow-up to PR #2607 and PR #2926. Closes #2936
2018-09-03openssl: Fix setting TLS 1.3 cipher suitesJay Satiro
The flag indicating TLS 1.3 cipher support in the OpenSSL backend was missing. Bug: https://github.com/curl/curl/pull/2607#issuecomment-417283187 Reported-by: Kamil Dudka Closes #2926
2018-08-24schannel: client certificate store opening fixIhor Karpenko
1) Using CERT_STORE_OPEN_EXISTING_FLAG ( or CERT_STORE_READONLY_FLAG ) while opening certificate store would be sufficient in this scenario and less-demanding in sense of required user credentials ( for example, IIS_IUSRS will get "Access Denied" 0x05 error for existing CertOpenStore call without any of flags mentioned above ), 2) as 'cert_store_name' is a DWORD, attempt to format its value like a string ( in "Failed to open cert store" error message ) will throw null pointer exception 3) adding GetLastError(), in my opinion, will make error message more useful. Bug: https://curl.haxx.se/mail/lib-2018-08/0198.html Closes #2909
2018-08-10openssl: fix potential NULL pointer deref in is_pkcs11_uriDaniel Stenberg
Follow-up to 298d2565e Coverity CID 1438387
2018-08-09openssl: fix debug messagesDaniel Jelinski
Fixes #2806 Closes #2843
2018-08-08ssl: set engine implicitly when a PKCS#11 URI is providedAnderson Toshiyuki Sasaki
This allows the use of PKCS#11 URI for certificates and keys without setting the corresponding type as "ENG" and the engine as "pkcs11" explicitly. If a PKCS#11 URI is provided for certificate, key, proxy_certificate or proxy_key, the corresponding type is set as "ENG" if not provided and the engine is set to "pkcs11" if not provided. Acked-by: Nikos Mavrogiannopoulos Closes #2333
2018-07-26wolfSSL/CyaSSL: Fix memory leak in Curl_cyassl_randomCarie Pointer
RNG structure must be freed by call to FreeRng after its use in Curl_cyassl_random. This call fixes Valgrind failures when running the test suite with wolfSSL. Closes #2784
2018-07-14darwinssl: add support for ALPN negotiationRodger Combs