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path: root/lib/vtls/vtls.c
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2019-09-19url: only reuse TLS connections with matching pinningDaniel Stenberg
If the requests have different CURLOPT_PINNEDPUBLICKEY strings set, the connection should not be reused. Bug: https://curl.haxx.se/mail/lib-2019-09/0061.html Reported-by: Sebastian Haglund Closes #4347
2019-07-30cleanup: remove the 'numsocks' argument used in many placesDaniel Stenberg
It was used (intended) to pass in the size of the 'socks' array that is also passed to these functions, but was rarely actually checked/used and the array is defined to a fixed size of MAX_SOCKSPEREASYHANDLE entries that should be used instead. Closes #4169
2019-06-10wolfssl: refer to it as wolfSSL onlyDaniel Stenberg
Remove support for, references to and use of "cyaSSL" from the source and docs. wolfSSL is the current name and there's no point in keeping references to ancient history. Assisted-by: Daniel Gustafsson Closes #3903
2019-05-20lib: reduce variable scopesMarcel Raad
Fixes Codacy/CppCheck warnings. Closes https://github.com/curl/curl/pull/3872
2019-05-13vtls: fix potential ssl_buffer stack overflowDaniel Gustafsson
In Curl_multissl_version() it was possible to overflow the passed in buffer if the generated version string exceeded the size of the buffer. Fix by inverting the logic, and also make sure to not exceed the local buffer during the string generation. Closes #3863 Reported-by: nevv on HackerOne/curl Reviewed-by: Jay Satiro Reviewed-by: Daniel Stenberg
2019-03-15vtls: rename some of the SSL functionsChris Young
... in the SSL structure as AmiSSL is using macros for the socket API functions.
2019-02-28Secure Transport: no more "darwinssl"Daniel Stenberg
Everyone calls it Secure Transport, now we do too. Reviewed-by: Nick Zitzmann Closes #3619
2018-12-07curl_global_sslset(): id == -1 is not necessarily an errorJohannes Schindelin
It is allowed to call that function with id set to -1, specifying the backend by the name instead. We should imitate what is done further down in that function to allow for that. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Closes #3346
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
2018-11-01axtls: 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
2018-09-13vtls: add a MesaLink vtls backendYiming Jing
Closes #2984
2018-09-03url, vtls: make CURLOPT{,_PROXY}_TLS13_CIPHERS workKamil Dudka
This is a follow-up to PR #2607 and PR #2926. Closes #2936
2018-05-29setopt: add TLS 1.3 ciphersuitesDaniel Stenberg
Adds CURLOPT_TLS13_CIPHERS and CURLOPT_PROXY_TLS13_CIPHERS. curl: added --tls13-ciphers and --proxy-tls13-ciphers Fixes #2435 Reported-by: zzq1015 on github Closes #2607
2018-05-04vtls: use unified "supports" bitfield member in backendsDaniel Stenberg
... instead of previous separate struct fields, to make it easier to extend and change individual backends without having to modify them all. closes #2547
2018-05-02wolfssl: Fix non-blocking connectDavid Garske
Closes https://github.com/curl/curl/pull/2542
2018-04-23curl_global_sslset: always provide available backendsChristian Schmitz
Closes #2499
2018-04-06tls: fix mbedTLS 2.7.0 build + handle sha256 failuresWyatt O'Day
(mbedtls 2.70 compiled with MBEDTLS_DEPRECATED_REMOVED) Closes #2453
2017-12-12vtls: replaced getenv() with curl_getenv()dmitrykos
Fixed undefined symbol of getenv() which does not exist when compiling for Windows 10 App (CURL_WINDOWS_APP). Replaced getenv() with curl_getenv() which is aware of getenv() absence when CURL_WINDOWS_APP is defined. Closes #2171
2017-10-19vtls: change struct Curl_ssl `close' field name to `close_one'.Patrick Monnerat
On OS/400, `close' is an ASCII system macro that corrupts the code if not used in a context not targetting the close() system API.
2017-10-06vtls: fix warnings with --disable-crypto-authMarcel Raad
When CURL_DISABLE_CRYPTO_AUTH is defined, Curl_none_md5sum's parameters are not used.
2017-10-05build: fix --disable-crypto-authDaniel Stenberg
Reported-by: Wyatt O'Day Fixes #1945 Closes #1947
2017-10-03vtls: compare and clone ssl configs properlyMichael Kaufmann
Compare these settings in Curl_ssl_config_matches(): - verifystatus (CURLOPT_SSL_VERIFYSTATUS) - random_file (CURLOPT_RANDOM_FILE) - egdsocket (CURLOPT_EGDSOCKET) Also copy the setting "verifystatus" in Curl_clone_primary_ssl_config(), and copy the setting "sessionid" unconditionally. This means that reusing connections that are secured with a client certificate is now possible, and the statement "TLS session resumption is disabled when a client certificate is used" in the old advisory at https://curl.haxx.se/docs/adv_20170419.html is obsolete. Reviewed-by: Daniel Stenberg Closes #1917
2017-09-22vtls: provide curl_global_sslset() even in non-SSL buildsDaniel Stenberg
... it just returns error: Bug: https://github.com/curl/curl/commit/1328f69d53f2f2e937696ea954c480412b018451#commitcomment-24470367 Reported-by: Marcel Raad Closes #1906
2017-09-11code style: use spaces around plusesDaniel Stenberg
2017-09-11code style: use spaces around equals signsDaniel Stenberg
2017-09-07vtls: fix memory corruptionJay Satiro
Ever since 70f1db321 (vtls: encapsulate SSL backend-specific data, 2017-07-28), the code handling HTTPS proxies was broken because the pointer to the SSL backend data was not swapped between conn->ssl[sockindex] and conn->proxy_ssl[sockindex] as intended, but instead set to NULL (causing segmentation faults). [jes: provided the commit message, tested and verified the patch] Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-09-07vtls: switch to CURL_SHA256_DIGEST_LENGTH defineDaniel Stenberg
... instead of the prefix-less version since WolfSSL 3.12 now uses an enum with that name that causes build failures for us. Fixes #1865 Closes #1867 Reported-by: Gisle Vanem
2017-09-06vtls: select ssl backend case-insensitive (follow-up)Gisle Vanem
- Do a case-insensitive comparison of CURL_SSL_BACKEND env as well. - Change Curl_strcasecompare calls to strcasecompare (maps to the former but shorter). Follow-up to c290b8f. Bug: https://github.com/curl/curl/commit/c290b8f#commitcomment-24094313 Co-authored-by: Jay Satiro
2017-09-01curl_global_sslset: select backend by name case insensitivelyDaniel Stenberg
Closes #1849
2017-08-28configure: allow setting the default SSL backendJohannes Schindelin
Previously, we used as default SSL backend whatever was first in the `available_backends` array. However, some users may want to override that default without patching the source code. Now they can: with the --with-default-ssl-backend=<backend> option of the ./configure script. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: use Curl_ssl_multi pseudo backend only when neededJohannes Schindelin
When only one SSL backend is configured, it is totally unnecessary to let multissl_init() configure the backend at runtime, we can select the correct backend at build time already. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28version: if built with more than one SSL backend, report all of themJohannes Schindelin
To discern the active one from the inactive ones, put the latter into parentheses. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: introduce curl_global_sslset()Johannes Schindelin
Let's add a compile time safe API to select an SSL backend. This function needs to be called *before* curl_global_init(), and can be called only once. Side note: we do not explicitly test that it is called before curl_global_init(), but we do verify that it is not called multiple times (even implicitly). If SSL is used before the function was called, it will use whatever the CURL_SSL_BACKEND environment variable says (or default to the first available SSL backend), and if a subsequent call to curl_global_sslset() disagrees with the previous choice, it will fail with CURLSSLSET_TOO_LATE. The function also accepts an "avail" parameter to point to a (read-only) NULL-terminated list of available backends. This comes in real handy if an application wants to let the user choose between whatever SSL backends the currently available libcurl has to offer: simply call curl_global_sslset(-1, NULL, &avail); which will return CURLSSLSET_UNKNOWN_BACKEND and populate the avail variable to point to the relevant information to present to the user. Just like with the HTTP/2 push functions, we have to add the function declaration of curl_global_sslset() function to the header file *multi.h* because VMS and OS/400 require a stable order of functions declared in include/curl/*.h (where the header files are sorted alphabetically). This looks a bit funny, but it cannot be helped. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: refactor out essential information about the SSL backendsJohannes Schindelin
There is information about the compiled-in SSL backends that is really no concern of any code other than the SSL backend itself, such as which function (if any) implements SHA-256 summing. And there is information that is really interesting to the user, such as the name, or the curl_sslbackend value. Let's factor out the latter into a publicly visible struct. This information will be used in the upcoming API to set the SSL backend globally. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: allow selecting which SSL backend to use at runtimeJohannes Schindelin
When building software for the masses, it is sometimes not possible to decide for all users which SSL backend is appropriate. Git for Windows, for example, uses cURL to perform clones, fetches and pushes via HTTPS, and some users strongly prefer OpenSSL, while other users really need to use Secure Channel because it offers enterprise-ready tools to manage credentials via Windows' Credential Store. The current Git for Windows versions use the ugly work-around of building libcurl once with OpenSSL support and once with Secure Channel support, and switching out the binaries in the installer depending on the user's choice. Needless to say, this is a super ugly workaround that actually only works in some cases: Git for Windows also comes in a portable form, and in a form intended for third-party applications requiring Git functionality, in which cases this "swap out libcurl-4.dll" simply is not an option. Therefore, the Git for Windows project has a vested interest in teaching cURL to make the SSL backend a *runtime* option. This patch makes that possible. By running ./configure with multiple --with-<backend> options, cURL will be built with multiple backends. For the moment, the backend can be configured using the environment variable CURL_SSL_BACKEND (valid values are e.g. "openssl" and "schannel"). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: fold the backend ID into the Curl_ssl structureJohannes Schindelin
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: remove obsolete declarations of SSL backend functionalityJohannes Schindelin
These functions are all available via the Curl_ssl struct now, no need to declare them separately anymore. As the global declarations are removed, the corresponding function definitions are marked as file-local. The only two exceptions here are Curl_mbedtls_shutdown() and Curl_polarssl_shutdown(): only the declarations were removed, there are no function definitions to mark file-local. Please note that Curl_nss_force_init() is *still* declared globally, as the only SSL backend-specific function, because it was introduced specifically for the use case where cURL was compiled with `--without-ssl --with-nss`. For details, see f3b77e561 (http_ntlm: add support for NSS, 2010-06-27). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: move the SUPPORT_HTTPS_PROXY flag into the Curl_ssl structJohannes Schindelin
That will allow us to choose the SSL backend at runtime. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: move sha256sum into the Curl_ssl structJohannes Schindelin
The SHA-256 checksumming is also an SSL backend-specific function. Let's include it in the struct declaring the functionality of SSL backends. In contrast to MD5, there is no fall-back code. To indicate this, the respective entries are NULL for those backends that offer no support for SHA-256 checksumming. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: move md5sum into the Curl_ssl structJohannes Schindelin
The MD5 summing is also an SSL backend-specific function. So let's include it, offering the previous fall-back code as a separate function now: Curl_none_md5sum(). To allow for that, the signature had to be changed so that an error could be returned from the implementation (Curl_none_md5sum() can run out of memory). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: use the Curl_ssl struct to access all SSL backends' functionalityJohannes Schindelin
This is the first step to unify the SSL backend handling. Now all the SSL backend-specific functionality is accessed via a global instance of the Curl_ssl struct. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2017-08-28vtls: declare Curl_ssl structs for every SSL backendJohannes Schindelin
The idea of introducing the Curl_ssl struct was to unify how the SSL backends are declared and called. To this end, we now provide an instance of the Curl_ssl struct for each and every SSL backend. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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
2017-03-13Improve code readbilitySylvestre Ledru
... by removing the else branch after a return, break or continue. Closes #1310
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
2017-01-22vtls: source indentation fixDaniel Stenberg
2017-01-20vtls: fix PolarSSL non-blocking handlingDaniel Stenberg
A regression brought in cb4e2be Reported-by: Michael Kaufmann Bug: https://github.com/curl/curl/issues/1174#issuecomment-274018791
2017-01-20vtls: fix mbedtls multi non blocking handshake.Antoine Aubert
When using multi, mbedtls handshake is in non blocking mode. vtls must set wait for read/write flags for the socket. Closes #1223
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
2016-12-26vtls: s/SSLEAY/OPENSSLDaniel Stenberg
Fixed an old leftover use of the USE_SSLEAY define which would make a socket get removed from the applications sockets to monitor when the multi_socket API was used, leading to timeouts. Bug: #1174
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