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2019-02-14connection_check: restore original conn->data after the checkJay Satiro
- Save the original conn->data before it's changed to the specified data transfer for the connection check and then restore it afterwards. This is a follow-up to 38d8e1b 2019-02-11. History: It was discovered a month ago that before checking whether to extract a dead connection that that connection should be associated with a "live" transfer for the check (ie original conn->data ignored and set to the passed in data). A fix was landed in 54b201b which did that and also cleared conn->data after the check. The original conn->data was not restored, so presumably it was thought that a valid conn->data was no longer needed. Several days later it was discovered that a valid conn->data was needed after the check and follow-up fix was landed in bbae24c which partially reverted the original fix and attempted to limit the scope of when conn->data was changed to only when pruning dead connections. In that case conn->data was not cleared and the original conn->data not restored. A month later it was discovered that the original fix was somewhat correct; a "live" transfer is needed for the check in all cases because original conn->data could be null which could cause a bad deref at arbitrary points in the check. A fix was landed in 38d8e1b which expanded the scope to all cases. conn->data was not cleared and the original conn->data not restored. A day later it was discovered that not restoring the original conn->data may lead to busy loops in applications that use the event interface, and given this observation it's a pretty safe assumption that there is some code path that still needs the original conn->data. This commit is the follow-up fix for that, it restores the original conn->data after the connection check. Assisted-by: tholin@users.noreply.github.com Reported-by: tholin@users.noreply.github.com Fixes https://github.com/curl/curl/issues/3542 Closes #3559
2019-02-14memdebug: bring back curl_mark_scloseDaniel Stenberg
Used by debug builds with NSS. Reverted from 05b100aee247bb
2019-02-14transfer.c: do not compute length of undefined hex buffer.Patrick Monnerat
On non-ascii platforms, the chunked hex header was measured for char code conversion length, even for chunked trailers that do not have an hex header. In addition, the efective length is already known: use it. Since the hex length can be zero, only convert if needed. Reported by valgrind.
2019-02-14x509asn1: "Dereference of null pointer"Patrick Monnerat
Detected by scan-build (false positive).
2019-02-14gssapi: fix deprecated header warningsDaniel Stenberg
Heimdal includes on FreeBSD spewed out lots of them. Less so now. Closes #3566
2019-02-13multi: Dereference of null pointerDaniel Stenberg
Mostly a false positive, but this makes the code easier to read anyway. Detected by scan-build. Closes #3563
2019-02-12schannel: restore some debug output but only for debug buildsJay Satiro
Follow-up to 84c10dc from earlier today which wrapped a lot of the noisy debug output in DEBUGF but omitted a few lines. Ref: https://github.com/curl/curl/commit/84c10dc#r32292900
2019-02-12mime: put the boundary buffer into the curl_mime structDaniel Stenberg
... instead of allocating it separately and point to it. It is fixed-size and always used for each part. Closes #3561
2019-02-12schannel: be quietDaniel Stenberg
Convert numerous infof() calls into debug-build only messages since they are annoyingly verbose for regular applications. Removed a few. Bug: https://curl.haxx.se/mail/lib-2019-02/0027.html Reported-by: Volker Schmid Closes #3552
2019-02-12Curl_resolv: fix a gcc -Werror=maybe-uninitialized warningRomain Geissler
Closes #3562
2019-02-12http2: multi_connchanged() moved from multi.c, only used for h2Daniel Stenberg
Closes #3557
2019-02-12pretransfer: don't strlen() POSTFIELDS set for GET requestsDaniel Stenberg
... since that data won't be used in the request anyway. Fixes #3548 Reported-by: Renaud Allard Close #3549
2019-02-12multi: remove verbose "Expire in" ... messagesDaniel Stenberg
Reported-by: James Brown Bug: https://curl.haxx.se/mail/archive-2019-02/0013.html Closes #3558
2019-02-12mbedtls: make it build even if MBEDTLS_VERSION_C isn't setDaniel Stenberg
Reported-by: MAntoniak on github Fixes #3553 Closes #3556
2019-02-12non-ascii.c: fix typos in commentsDaniel Gustafsson
Fix two occurrences of s/convers/converts/ spotted while reading code.
2019-02-12fnmatch: disable if FTP is disabledDaniel Stenberg
Closes #3551
2019-02-12curl_path: only enabled for SSH buildsDaniel Stenberg
2019-02-11dns: release sharelock as soon as possibleDaniel Gustafsson
There is no benefit to holding the data sharelock when freeing the addrinfo in case it fails, so ensure releaseing it as soon as we can rather than holding on to it. This also aligns the code with other consumers of sharelocks. Closes #3516 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2019-02-11multi: (void)-prefix when ignoring return valuesDaniel Stenberg
... and added braces to two function calls which fixes warnings if they are replace by empty macros at build-time.
2019-02-11connection_check: set ->data to the transfer doing the checkDaniel Stenberg
The http2 code for connection checking needs a transfer to use. Make sure a working one is set before handler->connection_check() is called. Reported-by: jnbr on github Fixes #3541 Closes #3547
2019-02-11hostip: make create_hostcache_id avoid alloc + freeDaniel Stenberg
Closes #3544
2019-02-10cleanup: make local functions staticDaniel Stenberg
urlapi: turn three local-only functions into statics conncache: make conncache_find_first_connection static multi: make detach_connnection static connect: make getaddressinfo static curl_ntlm_core: make hmac_md5 static http2: make two functions static http: make http_setup_conn static connect: make tcpnodelay static tests: make UNITTEST a thing to mark functions with, so they can be static for normal builds and non-static for unit test builds ... and mark Curl_shuffle_addr accordingly. url: make up_free static setopt: make vsetopt static curl_endian: make write32_le static rtsp: make rtsp_connisdead static warnless: remove unused functions memdebug: remove one unused function, made another static
2019-02-09url/idnconvert: remove scan for <= 32 ascii valuesDaniel Stenberg
The check was added back in fa939220df before the URL parser would catch these problems and therefore these will never trigger now. Closes #3539
2019-02-09urlapi: reduce variable scope, remove unreachable 'break'Daniel Stenberg
Both nits pointed out by codacy.com Closes #3540
2019-02-06url: close TLS before removing conn from cacheChris Araman
- Fix potential crashes in schannel shutdown. Ensure any TLS shutdown messages are sent before removing the association between the connection and the easy handle. Reverts @bagder's previous partial fix for #3412. Fixes https://github.com/curl/curl/issues/3412 Fixes https://github.com/curl/curl/issues/3505 Closes https://github.com/curl/curl/pull/3531
2019-02-04smtp: avoid risk of buffer overflow in strtolDaniel Gustafsson
If the incoming len 5, but the buffer does not have a termination after 5 bytes, the strtol() call may keep reading through the line buffer until is exceeds its boundary. Fix by ensuring that we are using a bounded read with a temporary buffer on the stack. Bug: https://curl.haxx.se/docs/CVE-2019-3823.html Reported-by: Brian Carpenter (Geeknik Labs) CVE-2019-3823
2019-02-04ntlm: fix *_type3_message size check to avoid buffer overflowDaniel Stenberg
Bug: https://curl.haxx.se/docs/CVE-2019-3822.html Reported-by: Wenxiang Qian CVE-2019-3822
2019-02-04NTLM: fix size check condition for type2 received dataDaniel Stenberg
Bug: https://curl.haxx.se/docs/CVE-2018-16890.html Reported-by: Wenxiang Qian CVE-2018-16890
2019-02-01spnego_sspi: add support for channel bindinggeorgeok
Attempt to add support for Secure Channel binding when negotiate authentication is used. The problem to solve is that by default IIS accepts channel binding and curl doesn't utilise them. The result was a 401 response. Scope affects only the Schannel(winssl)-SSPI combination. Fixes https://github.com/curl/curl/issues/3503 Closes https://github.com/curl/curl/pull/3509
2019-02-01schannel: stop calling it "winssl"Daniel Stenberg
Stick to "Schannel" everywhere. The configure option --with-winssl is kept to allow existing builds to work but --with-schannel is added as an alias. Closes #3504
2019-02-01multi: set the EXPIRE_*TIMEOUT timers at TIMER_STARTSINGLE timeDaniel Stenberg
To make sure Curl_timeleft() also thinks the timeout has been reached when one of the EXPIRE_*TIMEOUTs expires. Bug: https://curl.haxx.se/mail/lib-2019-01/0073.html Reported-by: Zhao Yisha Closes #3501
2019-01-28sigpipe: if mbedTLS is used, ignore SIGPIPEJeremie Rapin
mbedTLS doesn't have a sigpipe management. If a write/read occurs when the remote closes the socket, the signal is raised and kills the application. Use the curl mecanisms fix this behavior. Signed-off-by: Jeremie Rapin <j.rapin@overkiz.com> Closes #3502
2019-01-28timeval: Disable MSVC Analyzer GetTickCount warningMichael Kujawa
Compiling with msvc /analyze and a recent Windows SDK warns against using GetTickCount (Suggests to use GetTickCount64 instead.) Since GetTickCount is only being used when GetTickCount64 isn't available, I am disabling that warning. Fixes https://github.com/curl/curl/issues/3437 Closes https://github.com/curl/curl/pull/3440
2019-01-26configure: rewrite --enable-code-coverageDaniel Stenberg
The previously used ax_code_coverage.m4 is not license compatible and must not be used. Reported-by: William A. Rowe Jr Fixes #3497 Closes #3499
2019-01-24setopt: enable CURLOPT_SSH_KNOWNHOSTS and CURLOPT_SSH_KEYFUNCTION for libsshFelix Hädicke
CURLOPT_SSH_KNOWNHOSTS and CURLOPT_SSH_KEYFUNCTION are supported for libssh as well. So accepting these options only when compiling with libssh2 is wrong here. Fixes #3493 Closes #3494
2019-01-24libssh: do not let libssh create socketFelix Hädicke
By default, libssh creates a new socket, instead of using the socket created by curl for SSH connections. Pass the socket created by curl to libssh using ssh_options_set() with SSH_OPTIONS_FD directly after ssh_new(). So libssh uses our socket instead of creating a new one. This approach is very similar to what is done in the libssh2 code, where the socket created by curl is passed to libssh2 when libssh2_session_startup() is called. Fixes #3491 Closes #3495
2019-01-21schannel: preserve original certificate path parameterArchangel_SDY
Fixes #3480 Closes #3487
2019-01-20memcmp: avoid doing single char memcmpDaniel Gustafsson
There is no real gain in performing memcmp() comparisons on single characters, so change these to array subscript inspections which saves a call and makes the code clearer. Closes #3486 Reviewed-by: Daniel Stenberg <daniel@haxx.se> Reviewed-by: Jay Satiro <raysatiro@yahoo.com>
2019-01-19ntlm_sspi: add support for channel bindinggeorgeok
Windows extended potection (aka ssl channel binding) is required to login to ntlm IIS endpoint, otherwise the server returns 401 responses. Fixes #3280 Closes #3321
2019-01-18schannel: on connection close there might not be a transferDaniel Stenberg
Reported-by: Marcel Raad Fixes #3412 Closes #3483
2019-01-17ssh: log the libssh2 error message when ssh session startup failsJDepooter
When a ssh session startup fails, it is useful to know why it has failed. This commit changes the message from: "Failure establishing ssh session" to something like this, for example: "Failure establishing ssh session: -5, Unable to exchange encryption keys" Closes #3481
2019-01-16openssl: fix the SSL_get_tlsext_status_ocsp_resp callDaniel Stenberg
.... to not pass in a const in the second argument as that's not how it is supposed to be used and might cause compiler warnings. Reported-by: Pavel Pavlov Fixes #3477 Closes #3478
2019-01-15extract_if_dead: follow-up to 54b201b48c90aDaniel Stenberg
extract_if_dead() dead is called from two functions, and only one of them should get conn->data updated and now neither call path clears it. scan-build found a case where conn->data would be NULL dereferenced in ConnectionExists() otherwise. Closes #3473
2019-01-15multi: remove "Dead assignment"Daniel Stenberg
Found by scan-build. Follow-up to 4c35574bb785ce. Closes #3471
2019-01-15tests: move objnames-* from lib into testsDaniel Stenberg
Since they're used purely for testing purposes, I think they should rather be stored there. Closes #3470
2019-01-14cookie: fix comment typo (url_path_len -> uri_path_len)Frank Gevaerts
Closes #3469
2019-01-13extract_if_dead: use a known working transfer when checking connectionsDaniel Stenberg
Make sure that this function sets a proper "live" transfer for the connection before calling the protocol-specific connection check function, and then clear it again afterward as a non-used connection has no current transfer. Reported-by: Jeroen Ooms Reviewed-by: Marcel Raad Reviewed-by: Daniel Gustafsson Fixes #3463 Closes #3464
2019-01-13openssl: adapt to 3.0.0, OpenSSL_version_num() is deprecatedDaniel Stenberg
OpenSSL_version() replaces OpenSSL_version_num() Closes #3462
2019-01-11urldata: rename easy_conn to just connDaniel Stenberg
We use "conn" everywhere to be a pointer to the connection. Introduces two functions that "attaches" and "detaches" the connection to and from the transfer. Going forward, we should favour using "data->conn" (since a transfer always only has a single connection or none at all) to "conn->data" (since a connection can have none, one or many transfers associated with it and updating conn->data to be correct is error prone and a frequent reason for internal issues). Closes #3442
2019-01-10cookies: allow secure override when done over HTTPSDaniel Stenberg
Added test 1562 to verify. Reported-by: Jeroen Ooms Fixes #3445 Closes #3450
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