← Commit list

7c5637b8b4

Stefan Eissing
Stefan Eissing
2023-03-07
SUCCESS Duration: 86s

Subject

url: fix logic in connection reuse to deny reuse on "unclean" connections

Binary

Download Binary (786 KB)

Architecture & Compiler Flags

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

Build Log

$ git checkout -f 7c5637b8b4b8a5a125ba1556e50e4b092075a6a7
Previous HEAD position was 2a31086f39 docs: extend the URL API descriptions
HEAD is now at 7c5637b8b4 url: fix logic in connection reuse to deny reuse on "unclean" connections

$ git clean -fdx
Removing Makefile
Removing Makefile.in
Removing aclocal.m4
Removing autom4te.cache/
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Removing config.log
Removing config.status
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Removing curl-config
Removing depcomp
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Removing docs/cmdline-opts/Makefile
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Removing docs/curl.1
Removing docs/examples/.deps/
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Removing docs/libcurl/Makefile
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Removing docs/libcurl/opts/Makefile
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Removing include/Makefile
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Removing install-sh
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$ autoreconf -fi
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
libtoolize: Remember to add 'LT_INIT' to configure.ac.
configure.ac:123: installing './compile'
configure.ac:416: installing './config.guess'
configure.ac:416: installing './config.sub'
configure.ac:123: installing './install-sh'
configure.ac:129: installing './missing'
docs/examples/Makefile.am: installing './depcomp'
parallel-tests: installing './test-driver'

$ bash -c find . -name config.guess -exec cp /usr/share/misc/config.guess {} \;

$ bash -c find . -name config.sub -exec cp /usr/share/misc/config.sub {} \;

$ chmod +x configure

$ ./configure --disable-shared --without-ssl --disable-docs
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether make supports nested variables... yes
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable hiding of library internal symbols... yes
checking whether to enable c-ares for DNS lookups... no
checking whether to disable dependency on -lrt... (assumed no)
checking whether to enable ECH support... no
checking for path separator... :
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking that grep -E works... yes
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking for gcc... ccache gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether ccache gcc accepts -g... yes
checking for ccache gcc option to enable C11 features... none needed
checking whether ccache gcc understands -c and -o together... yes
checking how to run the C preprocessor... ccache gcc -E
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for stdatomic.h... yes
checking if _Atomic is available... yes
checking for a sed that does not truncate output... (cached) /usr/bin/sed
checking for code coverage support... no
checking whether build environment is sane... yes
checking for a race-free mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports the include directive... yes (GNU style)
checking dependency style of ccache gcc... gcc3
checking curl version... 8.0.0-DEV
checking for httpd... no
checking for apache2... no
checking for apachectl... no
checking for apxs... no
configure: httpd/apache2 not in PATH, httpd tests disabled
configure: apxs not in PATH, httpd tests disabled
checking for apxs... no
checking for caddy... no
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for grep that handles long lines and -e... (cached) /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking if OS is AIX (to define _ALL_SOURCE)... no
checking if _THREAD_SAFE is already defined... no
checking if _THREAD_SAFE is actually needed... no
checking if _THREAD_SAFE is onwards defined... no
checking if _REENTRANT is already defined... no
checking if _REENTRANT is actually needed... no
checking if _REENTRANT is onwards defined... no
checking for special C compiler options needed for large files... no
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configure: compiler options added: -Werror-implicit-function-declaration 
checking if compiler optimizer assumed setting might be used... yes
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configure: compiler options added: -O2
checking if compiler accepts strict warning options... yes
configure: compiler options added: -Wno-system-headers 
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configure: found both libz and libz.h header
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configure: IDN_LIBS: "-lidn2"
configure: IDN_LDFLAGS: ""
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configure: disables HSTS due to lack of SSL
checking whether to support WebSockets... no
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checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating Makefile
config.status: creating docs/Makefile
config.status: creating docs/examples/Makefile
config.status: creating docs/libcurl/Makefile
config.status: creating docs/libcurl/opts/Makefile
config.status: creating docs/cmdline-opts/Makefile
config.status: creating include/Makefile
config.status: creating include/curl/Makefile
config.status: creating src/Makefile
config.status: creating lib/Makefile
config.status: creating scripts/Makefile
config.status: creating lib/libcurl.vers
config.status: creating lib/libcurl.plist
config.status: creating tests/Makefile
config.status: creating tests/config
config.status: creating tests/certs/Makefile
config.status: creating tests/certs/scripts/Makefile
config.status: creating tests/data/Makefile
config.status: creating tests/server/Makefile
config.status: creating tests/libtest/Makefile
config.status: creating tests/unit/Makefile
config.status: creating tests/http/config.ini
config.status: creating tests/http/Makefile
config.status: creating packages/Makefile
config.status: creating packages/vms/Makefile
config.status: creating curl-config
config.status: creating libcurl.pc
config.status: creating lib/curl_config.h
config.status: executing depfiles commands
config.status: executing libtool commands
configure: Configured to build curl/libcurl:

  Host setup:       x86_64-pc-linux-gnu
  Install prefix:   /usr/local
  Compiler:         ccache gcc
   CFLAGS:          -Werror-implicit-function-declaration -O2 -Wno-system-headers
   CPPFLAGS:        
   LDFLAGS:         
   LIBS:            -lpsl -lz

  curl version:     8.0.0-DEV
  SSL:              no      (--with-{openssl,gnutls,nss,mbedtls,wolfssl,schannel,secure-transport,amissl,bearssl,rustls} )
  SSH:              no      (--with-{libssh,libssh2})
  zlib:             enabled
  brotli:           no      (--with-brotli)
  zstd:             no      (--with-zstd)
  GSS-API:          no      (--with-gssapi)
  GSASL:            no      (libgsasl not found)
  TLS-SRP:          no      (--enable-tls-srp)
  resolver:         POSIX threaded
  IPv6:             enabled
  Unix sockets:     enabled
  IDN:              no      (--with-{libidn2,winidn})
  Build libcurl:    Shared=no, Static=yes
  Built-in manual:  enabled
  --libcurl option: enabled (--disable-libcurl-option)
  Verbose errors:   enabled (--disable-verbose)
  Code coverage:    disabled
  SSPI:             no      (--enable-sspi)
  ca cert bundle:   no
  ca cert path:     
  ca fallback:      
  LDAP:             no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)
  LDAPS:            no      (--enable-ldaps)
  RTSP:             enabled
  RTMP:             no      (--with-librtmp)
  PSL:              enabled
  Alt-svc:          enabled (--disable-alt-svc)
  Headers API:      enabled (--disable-headers-api)
  HSTS:             no      (--enable-hsts)
  HTTP1:            enabled (internal)
  HTTP2:            no      (--with-nghttp2, --with-hyper)
  HTTP3:            no      (--with-ngtcp2, --with-quiche --with-msh3)
  ECH:              no      (--enable-ech)
  WebSockets:       no      (--enable-websockets)
  Protocols:        DICT FILE FTP GOPHER HTTP IMAP MQTT POP3 RTSP SMTP TELNET TFTP
  Features:         AsynchDNS IPv6 Largefile PSL UnixSockets alt-svc libz threadsafe

configure: WARNING: unrecognized options: --disable-docs
configure: WARNING: Cannot find libraries for LDAP support: LDAP disabled
configure: WARNING: libgsasl was not found
configure: WARNING: Cannot find libraries for IDN support: IDN disabled
configure: WARNING: unrecognized options: --disable-docs

$ make -j3
Making all in lib
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make  all-am
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
  CC       libcurl_la-altsvc.lo
  CC       libcurl_la-amigaos.lo
  CC       libcurl_la-asyn-ares.lo
  CC       libcurl_la-asyn-thread.lo
  CC       libcurl_la-base64.lo
  CC       libcurl_la-bufref.lo
  CC       libcurl_la-c-hyper.lo
  CC       libcurl_la-cf-https-connect.lo
  CC       libcurl_la-cf-socket.lo
  CC       libcurl_la-cfilters.lo
  CC       libcurl_la-conncache.lo
  CC       libcurl_la-connect.lo
  CC       libcurl_la-content_encoding.lo
  CC       libcurl_la-cookie.lo
  CC       libcurl_la-curl_addrinfo.lo
  CC       libcurl_la-curl_des.lo
  CC       libcurl_la-curl_endian.lo
  CC       libcurl_la-curl_fnmatch.lo
  CC       libcurl_la-curl_get_line.lo
  CC       libcurl_la-curl_gethostname.lo
  CC       libcurl_la-curl_gssapi.lo
  CC       libcurl_la-curl_log.lo
  CC       libcurl_la-curl_memrchr.lo
  CC       libcurl_la-curl_multibyte.lo
  CC       libcurl_la-curl_ntlm_core.lo
  CC       libcurl_la-curl_ntlm_wb.lo
  CC       libcurl_la-curl_path.lo
  CC       libcurl_la-curl_range.lo
  CC       libcurl_la-curl_rtmp.lo
  CC       libcurl_la-curl_sasl.lo
  CC       libcurl_la-curl_sspi.lo
  CC       libcurl_la-curl_threads.lo
  CC       libcurl_la-dict.lo
  CC       libcurl_la-doh.lo
  CC       libcurl_la-dynbuf.lo
  CC       libcurl_la-easy.lo
  CC       libcurl_la-easygetopt.lo
  CC       libcurl_la-easyoptions.lo
  CC       libcurl_la-escape.lo
  CC       libcurl_la-file.lo
  CC       libcurl_la-fileinfo.lo
  CC       libcurl_la-fopen.lo
  CC       libcurl_la-formdata.lo
  CC       libcurl_la-ftp.lo
  CC       libcurl_la-ftplistparser.lo
  CC       libcurl_la-getenv.lo
  CC       libcurl_la-getinfo.lo
  CC       libcurl_la-gopher.lo
  CC       libcurl_la-h2h3.lo
  CC       libcurl_la-hash.lo
  CC       libcurl_la-headers.lo
  CC       libcurl_la-hmac.lo
  CC       libcurl_la-hostasyn.lo
  CC       libcurl_la-hostip.lo
  CC       libcurl_la-hostip4.lo
  CC       libcurl_la-hostip6.lo
  CC       libcurl_la-hostsyn.lo
  CC       libcurl_la-hsts.lo
  CC       libcurl_la-http.lo
  CC       libcurl_la-http2.lo
  CC       libcurl_la-http_chunks.lo
  CC       libcurl_la-http_digest.lo
  CC       libcurl_la-http_negotiate.lo
  CC       libcurl_la-http_ntlm.lo
  CC       libcurl_la-http_proxy.lo
  CC       libcurl_la-http_aws_sigv4.lo
  CC       libcurl_la-idn.lo
  CC       libcurl_la-if2ip.lo
  CC       libcurl_la-imap.lo
  CC       libcurl_la-inet_ntop.lo
  CC       libcurl_la-inet_pton.lo
  CC       libcurl_la-krb5.lo
  CC       libcurl_la-ldap.lo
  CC       libcurl_la-llist.lo
  CC       libcurl_la-md4.lo
  CC       libcurl_la-md5.lo
  CC       libcurl_la-memdebug.lo
  CC       libcurl_la-mime.lo
  CC       libcurl_la-mprintf.lo
  CC       libcurl_la-mqtt.lo
  CC       libcurl_la-multi.lo
  CC       libcurl_la-netrc.lo
  CC       libcurl_la-nonblock.lo
  CC       libcurl_la-noproxy.lo
  CC       libcurl_la-openldap.lo
  CC       libcurl_la-parsedate.lo
  CC       libcurl_la-pingpong.lo
  CC       libcurl_la-pop3.lo
  CC       libcurl_la-progress.lo
  CC       libcurl_la-psl.lo
  CC       libcurl_la-rand.lo
  CC       libcurl_la-rename.lo
  CC       libcurl_la-rtsp.lo
  CC       libcurl_la-select.lo
  CC       libcurl_la-sendf.lo
  CC       libcurl_la-setopt.lo
  CC       libcurl_la-sha256.lo
  CC       libcurl_la-share.lo
  CC       libcurl_la-slist.lo
  CC       libcurl_la-smb.lo
  CC       libcurl_la-smtp.lo
  CC       libcurl_la-socketpair.lo
  CC       libcurl_la-socks.lo
  CC       libcurl_la-socks_gssapi.lo
  CC       libcurl_la-socks_sspi.lo
  CC       libcurl_la-speedcheck.lo
  CC       libcurl_la-splay.lo
  CC       libcurl_la-strcase.lo
  CC       libcurl_la-strdup.lo
  CC       libcurl_la-strerror.lo
  CC       libcurl_la-strtok.lo
  CC       libcurl_la-strtoofft.lo
  CC       libcurl_la-system_win32.lo
  CC       libcurl_la-telnet.lo
  CC       libcurl_la-tftp.lo
  CC       libcurl_la-timediff.lo
  CC       libcurl_la-timeval.lo
  CC       libcurl_la-transfer.lo
  CC       libcurl_la-url.lo
  CC       libcurl_la-urlapi.lo
  CC       libcurl_la-version.lo
  CC       libcurl_la-version_win32.lo
  CC       libcurl_la-warnless.lo
  CC       libcurl_la-ws.lo
  CC       vauth/libcurl_la-cleartext.lo
  CC       vauth/libcurl_la-cram.lo
  CC       vauth/libcurl_la-digest.lo
  CC       vauth/libcurl_la-digest_sspi.lo
  CC       vauth/libcurl_la-gsasl.lo
  CC       vauth/libcurl_la-krb5_gssapi.lo
  CC       vauth/libcurl_la-krb5_sspi.lo
  CC       vauth/libcurl_la-ntlm.lo
  CC       vauth/libcurl_la-ntlm_sspi.lo
  CC       vauth/libcurl_la-oauth2.lo
  CC       vauth/libcurl_la-spnego_gssapi.lo
  CC       vauth/libcurl_la-spnego_sspi.lo
  CC       vauth/libcurl_la-vauth.lo
  CC       vtls/libcurl_la-bearssl.lo
  CC       vtls/libcurl_la-gskit.lo
  CC       vtls/libcurl_la-gtls.lo
  CC       vtls/libcurl_la-hostcheck.lo
  CC       vtls/libcurl_la-keylog.lo
  CC       vtls/libcurl_la-mbedtls.lo
  CC       vtls/libcurl_la-mbedtls_threadlock.lo
  CC       vtls/libcurl_la-openssl.lo
  CC       vtls/libcurl_la-nss.lo
  CC       vtls/libcurl_la-rustls.lo
  CC       vtls/libcurl_la-schannel.lo
  CC       vtls/libcurl_la-schannel_verify.lo
  CC       vtls/libcurl_la-sectransp.lo
  CC       vtls/libcurl_la-vtls.lo
  CC       vtls/libcurl_la-wolfssl.lo
  CC       vtls/libcurl_la-x509asn1.lo
  CC       vquic/libcurl_la-curl_msh3.lo
  CC       vquic/libcurl_la-curl_ngtcp2.lo
  CC       vquic/libcurl_la-curl_quiche.lo
  CC       vquic/libcurl_la-vquic.lo
  CC       vssh/libcurl_la-libssh.lo
  CC       vssh/libcurl_la-libssh2.lo
  CC       vssh/libcurl_la-wolfssh.lo
  CCLD     libcurl.la
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/lib'
Making all in src
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
Making all in ../docs
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in .
make[3]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
if test "..x" != "..x" -a -e "./curl.1"; then \
	/usr/bin/install -c -m 644 "./curl.1" /root/asi_db/builds/curl/_worktrees/w0/docs/curl.1; fi
cd cmdline-opts && make
make[4]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
  GENERATE ../../docs/curl.1
make[4]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
Making all in cmdline-opts
make[3]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs/cmdline-opts'
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/docs'
make[2]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0/src'
  CC       slist_wc.o
  CC       tool_binmode.o
  CC       tool_bname.o
  CC       tool_cb_prg.o
  CC       tool_cb_dbg.o
  CC       tool_cb_hdr.o
  CC       tool_cb_rea.o
  CC       tool_cb_see.o
  CC       tool_cb_wrt.o
  CC       tool_dirhie.o
  CC       tool_cfgable.o
  CC       tool_doswin.o
  CC       tool_easysrc.o
  CC       tool_filetime.o
  CC       tool_findfile.o
  CC       tool_formparse.o
  CC       tool_getparam.o
  CC       tool_getpass.o
  CC       tool_help.o
  CC       tool_helpers.o
  HUGE     tool_hugehelp.c
  CC       tool_libinfo.o
  CC       tool_listhelp.o
  CC       tool_main.o
  CC       tool_msgs.o
  CC       tool_operate.o
  CC       tool_operhlp.o
  CC       tool_paramhlp.o
  CC       tool_parsecfg.o
  CC       tool_progress.o
  CC       tool_strdup.o
  CC       tool_setopt.o
  CC       tool_sleep.o
  CC       tool_urlglob.o
  CC       tool_util.o
  CC       tool_vms.o
  CC       tool_writeout.o
  CC       tool_writeout_json.o
  CC       tool_xattr.o
  CC       ../lib/strtoofft.o
  CC       ../lib/timediff.o
  CC       ../lib/nonblock.o
  CC       ../lib/warnless.o
  CC       ../lib/curl_multibyte.o
  CC       ../lib/version_win32.o
  CC       ../lib/dynbuf.o
  CC       tool_hugehelp.o
  CCLD     curl
make[2]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0/src'
make[1]: Entering directory '/root/asi_db/builds/curl/_worktrees/w0'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/root/asi_db/builds/curl/_worktrees/w0'

Commit Diff GitHub →

lib/cf-socket.c+4 -15
@@ -325,20 +325,6 @@ int Curl_socket_close(struct Curl_easy *data, struct connectdata *conn,
return socket_close(data, conn, FALSE, sock);
}
-bool Curl_socket_is_dead(curl_socket_t sock)
-{
- int sval;
- bool ret_val = TRUE;
-
- sval = SOCKET_READABLE(sock, 0);
- if(sval == 0)
- /* timeout */
- ret_val = FALSE;
-
- return ret_val;
-}
-
-
#ifdef USE_WINSOCK
/* When you run a program that uses the Windows Sockets API, you may
experience slow performance when you copy data to a TCP server.
@@ -1449,12 +1435,14 @@ static CURLcode cf_socket_cntrl(struct Curl_cfilter *cf,
}
static bool cf_socket_conn_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data)
+ struct Curl_easy *data,
+ bool *input_pending)
{
struct cf_socket_ctx *ctx = cf->ctx;
struct pollfd pfd[1];
int r;
+ *input_pending = FALSE;
(void)data;
if(!ctx || ctx->sock == CURL_SOCKET_BAD)
return FALSE;
@@ -1479,6 +1467,7 @@ static bool cf_socket_conn_is_alive(struct Curl_cfilter *cf,
}
DEBUGF(LOG_CF(data, cf, "is_alive: valid events, looks alive"));
+ *input_pending = TRUE;
return TRUE;
}
lib/cf-socket.h+0 -7
@@ -70,13 +70,6 @@ CURLcode Curl_socket_open(struct Curl_easy *data,
int Curl_socket_close(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sock);
-/*
- * This function should return TRUE if the socket is to be assumed to
- * be dead. Most commonly this happens when the server has closed the
- * connection due to inactivity.
- */
-bool Curl_socket_is_dead(curl_socket_t sock);
-
/**
* Determine the curl code for a socket connect() == -1 with errno.
*/
lib/cfilters.c+7 -4
@@ -124,10 +124,11 @@ ssize_t Curl_cf_def_recv(struct Curl_cfilter *cf, struct Curl_easy *data,
}
bool Curl_cf_def_conn_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data)
+ struct Curl_easy *data,
+ bool *input_pending)
{
return cf->next?
- cf->next->cft->is_alive(cf->next, data) :
+ cf->next->cft->is_alive(cf->next, data, input_pending) :
FALSE; /* pessimistic in absence of data */
}
@@ -631,10 +632,12 @@ void Curl_conn_report_connect_stats(struct Curl_easy *data,
}
}
-bool Curl_conn_is_alive(struct Curl_easy *data, struct connectdata *conn)
+bool Curl_conn_is_alive(struct Curl_easy *data, struct connectdata *conn,
+ bool *input_pending)
{
struct Curl_cfilter *cf = conn->cfilter[FIRSTSOCKET];
- return cf && !cf->conn->bits.close && cf->cft->is_alive(cf, data);
+ return cf && !cf->conn->bits.close &&
+ cf->cft->is_alive(cf, data, input_pending);
}
CURLcode Curl_conn_keep_alive(struct Curl_easy *data,
lib/cfilters.h+6 -3
@@ -85,7 +85,8 @@ typedef ssize_t Curl_cft_recv(struct Curl_cfilter *cf,
CURLcode *err); /* error to return */
typedef bool Curl_cft_conn_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data);
+ struct Curl_easy *data,
+ bool *input_pending);
typedef CURLcode Curl_cft_conn_keep_alive(struct Curl_cfilter *cf,
struct Curl_easy *data);
@@ -216,7 +217,8 @@ CURLcode Curl_cf_def_cntrl(struct Curl_cfilter *cf,
struct Curl_easy *data,
int event, int arg1, void *arg2);
bool Curl_cf_def_conn_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data);
+ struct Curl_easy *data,
+ bool *input_pending);
CURLcode Curl_cf_def_conn_keep_alive(struct Curl_cfilter *cf,
struct Curl_easy *data);
CURLcode Curl_cf_def_query(struct Curl_cfilter *cf,
@@ -443,7 +445,8 @@ void Curl_conn_report_connect_stats(struct Curl_easy *data,
/**
* Check if FIRSTSOCKET's cfilter chain deems connection alive.
*/
-bool Curl_conn_is_alive(struct Curl_easy *data, struct connectdata *conn);
+bool Curl_conn_is_alive(struct Curl_easy *data, struct connectdata *conn,
+ bool *input_pending);
/**
* Try to upkeep the connection filters at sockindex.
lib/http2.c+30 -31
@@ -366,6 +366,15 @@ static void http2_stream_free(struct HTTP *stream)
}
}
+/*
+ * Returns nonzero if current HTTP/2 session should be closed.
+ */
+static int should_close_session(struct cf_h2_ctx *ctx)
+{
+ return ctx->drain_total == 0 && !nghttp2_session_want_read(ctx->h2) &&
+ !nghttp2_session_want_write(ctx->h2);
+}
+
/*
* The server may send us data at any point (e.g. PING frames). Therefore,
* we cannot assume that an HTTP/2 socket is dead just because it is readable.
@@ -373,35 +382,27 @@ static void http2_stream_free(struct HTTP *stream)
* Check the lower filters first and, if successful, peek at the socket
* and distinguish between closed and data.
*/
-static bool http2_connisdead(struct Curl_cfilter *cf, struct Curl_easy *data)
+static bool http2_connisalive(struct Curl_cfilter *cf, struct Curl_easy *data,
+ bool *input_pending)
{
struct cf_h2_ctx *ctx = cf->ctx;
- int sval;
- bool dead = TRUE;
+ bool alive = TRUE;
- if(!cf->next || !cf->next->cft->is_alive(cf->next, data))
- return TRUE;
+ *input_pending = FALSE;
+ if(!cf->next || !cf->next->cft->is_alive(cf->next, data, input_pending))
+ return FALSE;
- sval = SOCKET_READABLE(Curl_conn_cf_get_socket(cf, data), 0);
- if(sval == 0) {
- /* timeout */
- dead = FALSE;
- }
- else if(sval & CURL_CSELECT_ERR) {
- /* socket is in an error state */
- dead = TRUE;
- }
- else if(sval & CURL_CSELECT_IN) {
+ if(*input_pending) {
/* This happens before we've sent off a request and the connection is
not in use by any other transfer, there shouldn't be any data here,
only "protocol frames" */
CURLcode result;
ssize_t nread = -1;
+ *input_pending = FALSE;
Curl_attach_connection(data, cf->conn);
nread = Curl_conn_cf_recv(cf->next, data,
ctx->inbuf, H2_BUFSIZE, &result);
- dead = FALSE;
if(nread != -1) {
DEBUGF(LOG_CF(data, cf, "%d bytes stray data read before trying "
"h2 connection", (int)nread));
@@ -409,15 +410,19 @@ static bool http2_connisdead(struct Curl_cfilter *cf, struct Curl_easy *data)
ctx->inbuflen = nread;
if(h2_process_pending_input(cf, data, &result) < 0)
/* immediate error, considered dead */
- dead = TRUE;
+ alive = FALSE;
+ else {
+ alive = !should_close_session(ctx);
+ }
}
- else
+ else {
/* the read failed so let's say this is dead anyway */
- dead = TRUE;
+ alive = FALSE;
+ }
Curl_detach_connection(data);
}
- return dead;
+ return alive;
}
static CURLcode http2_send_ping(struct Curl_cfilter *cf,
@@ -1451,15 +1456,6 @@ CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
return result;
}
-/*
- * Returns nonzero if current HTTP/2 session should be closed.
- */
-static int should_close_session(struct cf_h2_ctx *ctx)
-{
- return ctx->drain_total == 0 && !nghttp2_session_want_read(ctx->h2) &&
- !nghttp2_session_want_write(ctx->h2);
-}
-
/*
* h2_process_pending_input() processes pending input left in
* httpc->inbuf. Then, call h2_session_send() to send pending data.
@@ -2359,14 +2355,17 @@ static bool cf_h2_data_pending(struct Curl_cfilter *cf,
}
static bool cf_h2_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data)
+ struct Curl_easy *data,
+ bool *input_pending)
{
struct cf_h2_ctx *ctx = cf->ctx;
CURLcode result;
struct cf_call_data save;
CF_DATA_SAVE(save, cf, data);
- result = (ctx && ctx->h2 && !http2_connisdead(cf, data));
+ result = (ctx && ctx->h2 && http2_connisalive(cf, data, input_pending));
+ DEBUGF(LOG_CF(data, cf, "conn alive -> %d, input_pending=%d",
+ result, *input_pending));
CF_DATA_RESTORE(cf, save);
return result;
}
lib/rtsp.c+2 -1
@@ -145,7 +145,8 @@ static unsigned int rtsp_conncheck(struct Curl_easy *data,
(void)data;
if(checks_to_perform & CONNCHECK_ISDEAD) {
- if(!Curl_conn_is_alive(data, conn))
+ bool input_pending;
+ if(!Curl_conn_is_alive(data, conn, &input_pending))
ret_val |= CONNRESULT_DEAD;
}
lib/url.c+14 -1
@@ -965,7 +965,20 @@ static bool extract_if_dead(struct connectdata *conn,
}
else {
- dead = !Curl_conn_is_alive(data, conn);
+ bool input_pending;
+
+ dead = !Curl_conn_is_alive(data, conn, &input_pending);
+ if(input_pending) {
+ /* For reuse, we want a "clean" connection state. The includes
+ * that we expect - in general - no waiting input data. Input
+ * waiting might be a TLS Notify Close, for example. We reject
+ * that.
+ * For protocols where data from other other end may arrive at
+ * any time (HTTP/2 PING for example), the protocol handler needs
+ * to install its own `connection_check` callback.
+ */
+ dead = TRUE;
+ }
}
if(dead) {
lib/vquic/curl_msh3.c+3 -1
@@ -769,11 +769,13 @@ static CURLcode cf_msh3_query(struct Curl_cfilter *cf,
}
static bool cf_msh3_conn_is_alive(struct Curl_cfilter *cf,
- struct Curl_easy *data)
+ struct Curl_easy *data,
+ bool *input_pending)
{
struct cf_msh3_ctx *ctx = cf->ctx;
(void)data;
+ *input_pending = FALSE;
return ctx && ctx->sock[SP_LOCAL] != CURL_SOCKET_BAD && ctx->qconn &&
ctx->connected;
}
lib/vquic/curl_ngtcp2.c+27 -1
@@ -2444,6 +2444,32 @@ static CURLcode cf_ngtcp2_query(struct Curl_cfilter *cf,
CURLE_UNKNOWN_OPTION;
}
+static bool cf_ngtcp2_conn_is_alive(struct Curl_cfilter *cf,
+ struct Curl_easy *data,
+ bool *input_pending)
+{
+ bool alive = TRUE;
+
+ *input_pending = FALSE;
+ if(!cf->next || !cf->next->cft->is_alive(cf->next, data, input_pending))
+ return FALSE;
+
+ if(*input_pending) {
+ /* This happens before we've sent off a request and the connection is
+ not in use by any other transfer, there shouldn't be any data here,
+ only "protocol frames" */
+ *input_pending = FALSE;
+ Curl_attach_connection(data, cf->conn);
+ if(cf_process_ingress(cf, data))
+ alive = FALSE;
+ else {
+ alive = TRUE;
+ }
+ Curl_detach_connection(data);
+ }
+
+ return alive;
+}
struct Curl_cftype Curl_cft_http3 = {
"HTTP/3",
@@ -2458,7 +2484,7 @@ struct Curl_cftype Curl_cft_http3 = {
cf_ngtcp2_send,
cf_ngtcp2_recv,
cf_ngtcp2_data_event,
- Curl_cf_def_conn_is_alive,
+ cf_ngtcp2_conn_is_alive,
Curl_cf_def_conn_keep_alive,
cf_ngtcp2_query,
};
lib/vquic/curl_quiche.c+27 -1
@@ -1359,6 +1359,32 @@ static CURLcode cf_quiche_query(struct Curl_cfilter *cf,
CURLE_UNKNOWN_OPTION;
}
+static bool cf_quiche_conn_is_alive(struct Curl_cfilter *cf,
+ struct Curl_easy *data,
+ bool *input_pending)
+{
+ bool alive = TRUE;
+
+ *input_pending = FALSE;
+ if(!cf->next || !cf->next->cft->is_alive(cf->next, data, input_pending))
+ return FALSE;
+
+ if(*input_pending) {
+ /* This happens before we've sent off a request and the connection is
+ not in use by any other transfer, there shouldn't be any data here,
+ only "protocol frames" */
+ *input_pending = FALSE;
+ Curl_attach_connection(data, cf->conn);
+ if(cf_process_ingress(cf, data))
+ alive = FALSE;
+ else {
+ alive = TRUE;
+ }
+ Curl_detach_connection(data);
+ }
+
+ return alive;
+}
struct Curl_cftype Curl_cft_http3 = {
"HTTP/3",
@@ -1373,7 +1399,7 @@ struct Curl_cftype Curl_cft_http3 = {
cf_quiche_send,
cf_quiche_recv,
cf_quiche_data_event,
- Curl_cf_def_conn_is_alive,
+ cf_quiche_conn_is_alive,
Curl_cf_def_conn_keep_alive,
cf_quiche_query,
};
lib/vtls/nss.c+1 -31
@@ -1536,36 +1536,6 @@ static void nss_cleanup(void)
initialized = 0;
}
-/*
- * This function uses SSL_peek to determine connection status.
- *
- * Return codes:
- * 1 means the connection is still in place
- * 0 means the connection has been closed
- * -1 means the connection status is unknown
- */
-static int nss_check_cxn(struct Curl_cfilter *cf, struct Curl_easy *data)
-{
- struct ssl_connect_data *connssl = cf->ctx;
- struct ssl_backend_data *backend = connssl->backend;
- int rc;
- char buf;
-
- (void)data;
- DEBUGASSERT(backend);
-
- rc =
- PR_Recv(backend->handle, (void *)&buf, 1, PR_MSG_PEEK,
- PR_SecondsToInterval(1));
- if(rc > 0)
- return 1; /* connection still in place */
-
- if(rc == 0)
- return 0; /* connection has been closed */
-
- return -1; /* connection status unknown */
-}
-
static void close_one(struct ssl_connect_data *connssl)
{
/* before the cleanup, check whether we are using a client certificate */
@@ -2524,7 +2494,7 @@ const struct Curl_ssl Curl_ssl_nss = {
nss_init, /* init */
nss_cleanup, /* cleanup */
nss_version, /* version */
- nss_check_cxn, /* check_cxn */
+ Curl_none_check_cxn, /* check_cxn */
/* NSS has no shutdown function provided and thus always fail */
Curl_none_shutdown, /* shutdown */
nss_data_pending, /* data_pending */
lib/vtls/openssl.c+1 -58
@@ -1780,63 +1780,6 @@ static void ossl_cleanup(void)
Curl_tls_keylog_close();
}
-/*
- * This function is used to determine connection status.
- *
- * Return codes:
- * 1 means the connection is still in place
- * 0 means the connection has been closed
- * -1 means the connection status is unknown
- */
-static int ossl_check_cxn(struct Curl_cfilter *cf, struct Curl_easy *data)
-{
- /* SSL_peek takes data out of the raw recv buffer without peeking so we use
- recv MSG_PEEK instead. Bug #795 */
-#ifdef MSG_PEEK
- char buf;
- ssize_t nread;
- curl_socket_t sock = Curl_conn_cf_get_socket(cf, data);
- if(sock == CURL_SOCKET_BAD)
- return 0; /* no socket, consider closed */
- nread = recv((RECV_TYPE_ARG1)sock,
- (RECV_TYPE_ARG2)&buf, (RECV_TYPE_ARG3)1,
- (RECV_TYPE_ARG4)MSG_PEEK);
- if(nread == 0)
- return 0; /* connection has been closed */
- if(nread == 1)
- return 1; /* connection still in place */
- else if(nread == -1) {
- int err = SOCKERRNO;
- if(err == EINPROGRESS ||
-#if defined(EAGAIN) && (EAGAIN != EWOULDBLOCK)
- err == EAGAIN ||
-#endif
- err == EWOULDBLOCK)
- return 1; /* connection still in place */
- if(err == ECONNRESET ||
-#ifdef ECONNABORTED
- err == ECONNABORTED ||
-#endif
-#ifdef ENETDOWN
- err == ENETDOWN ||
-#endif
-#ifdef ENETRESET
- err == ENETRESET ||
-#endif
-#ifdef ESHUTDOWN
- err == ESHUTDOWN ||
-#endif
-#ifdef ETIMEDOUT
- err == ETIMEDOUT ||
-#endif
- err == ENOTCONN)
- return 0; /* connection has been closed */
- }
-#endif
- (void)data;
- return -1; /* connection status unknown */
-}
-
/* Selects an OpenSSL crypto engine
*/
static CURLcode ossl_set_engine(struct Curl_easy *data, const char *engine)
@@ -4820,7 +4763,7 @@ const struct Curl_ssl Curl_ssl_openssl = {
ossl_init, /* init */
ossl_cleanup, /* cleanup */
ossl_version, /* version */
- ossl_check_cxn, /* check_cxn */
+ Curl_none_check_cxn, /* check_cxn */
ossl_shutdown, /* shutdown */
ossl_data_pending, /* data_pending */
ossl_random, /* random */
lib/vtls/sectransp.c+1 -30
@@ -3233,35 +3233,6 @@ static size_t sectransp_version(char *buffer, size_t size)
return msnprintf(buffer, size, "SecureTransport");
}
-/*
- * This function uses SSLGetSessionState to determine connection status.
- *
- * Return codes:
- * 1 means the connection is still in place
- * 0 means the connection has been closed
- * -1 means the connection status is unknown
- */
-static int sectransp_check_cxn(struct Curl_cfilter *cf,
- struct Curl_easy *data)
-{
- struct ssl_connect_data *connssl = cf->ctx;
- struct ssl_backend_data *backend = connssl->backend;
- OSStatus err;
- SSLSessionState state;
-
- (void)data;
- DEBUGASSERT(backend);
-
- if(backend->ssl_ctx) {
- DEBUGF(LOG_CF(data, cf, "check connection"));
- err = SSLGetSessionState(backend->ssl_ctx, &state);
- if(err == noErr)
- return state == kSSLConnected || state == kSSLHandshake;
- return -1;
- }
- return 0;
-}
-
static bool sectransp_data_pending(struct Curl_cfilter *cf,
const struct Curl_easy *data)
{
@@ -3473,7 +3444,7 @@ const struct Curl_ssl Curl_ssl_sectransp = {
Curl_none_init, /* init */
Curl_none_cleanup, /* cleanup */
sectransp_version, /* version */
- sectransp_check_cxn, /* check_cxn */
+ Curl_none_check_cxn, /* check_cxn */
sectransp_shutdown, /* shutdown */
sectransp_data_pending, /* data_pending */
sectransp_random, /* random */
lib/vtls/vtls.c+11 -6
@@ -1650,10 +1650,11 @@ static CURLcode ssl_cf_query(struct Curl_cfilter *cf,
CURLE_UNKNOWN_OPTION;
}
-static bool cf_ssl_is_alive(struct Curl_cfilter *cf, struct Curl_easy *data)
+static bool cf_ssl_is_alive(struct Curl_cfilter *cf, struct Curl_easy *data,
+ bool *input_pending)
{
struct cf_call_data save;
- bool result;
+ int result;
/*
* This function tries to determine connection status.
*
@@ -1663,15 +1664,19 @@ static bool cf_ssl_is_alive(struct Curl_cfilter *cf, struct Curl_easy *data)
* -1 means the connection status is unknown
*/
CF_DATA_SAVE(save, cf, data);
- result = Curl_ssl->check_cxn(cf, data) != 0;
+ result = Curl_ssl->check_cxn(cf, data);
CF_DATA_RESTORE(cf, save);
- if(result > 0)
+ if(result > 0) {
+ *input_pending = TRUE;
return TRUE;
- if(result == 0)
+ }
+ if(result == 0) {
+ *input_pending = FALSE;
return FALSE;
+ }
/* ssl backend does not know */
return cf->next?
- cf->next->cft->is_alive(cf->next, data) :
+ cf->next->cft->is_alive(cf->next, data, input_pending) :
FALSE; /* pessimistic in absence of data */
}
tests/http/test_03_goaway.py+32 -0
@@ -110,4 +110,36 @@ class TestGoAway:
assert r.duration >= timedelta(seconds=count)
r.check_stats(count=count, exp_status=200, exp_exitcode=0)
+ # download files sequentially with delay, reload server for GOAWAY
+ def test_03_03_h1_goaway(self, env: Env, httpd, nghttpx, repeat):
+ proto = 'http/1.1'
+ count = 3
+ self.r = None
+ def long_run():
+ curl = CurlClient(env=env)
+ # send 10 chunks of 1024 bytes in a response body with 100ms delay in between
+ urln = f'https://{env.authority_for(env.domain1, proto)}' \
+ f'/curltest/tweak?id=[0-{count - 1}]'\
+ '&chunks=10&chunk_size=1024&chunk_delay=100ms'
+ self.r = curl.http_download(urls=[urln], alpn_proto=proto)
+
+ t = Thread(target=long_run)
+ t.start()
+ # each request will take a second, reload the server in the middle
+ # of the first one.
+ time.sleep(1.5)
+ assert httpd.reload()
+ t.join()
+ r: ExecResult = self.r
+ assert r.exit_code == 0, f'{r}'
+ r.check_stats(count=count, exp_status=200)
+ # reload will shut down the connection gracefully with GOAWAY
+ # we expect to see a second connection opened afterwards
+ assert r.total_connects == 2
+ for idx, s in enumerate(r.stats):
+ if s['num_connects'] > 0:
+ log.debug(f'request {idx} connected')
+ # this should take `count` seconds to retrieve
+ assert r.duration >= timedelta(seconds=count)
+
tests/http/test_12_reuse.py+93 -0
@@ -0,0 +1,93 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#***************************************************************************
+# _ _ ____ _
+# Project ___| | | | _ \| |
+# / __| | | | |_) | |
+# | (__| |_| | _ <| |___
+# \___|\___/|_| \_\_____|
+#
+# Copyright (C) 2008 - 2022, Daniel Stenberg, <[email protected]>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# SPDX-License-Identifier: curl
+#
+###########################################################################
+#
+import difflib
+import filecmp
+import logging
+import os
+import pytest
+
+from testenv import Env, CurlClient
+
+
+log = logging.getLogger(__name__)
+
+
+@pytest.mark.skipif(condition=Env.setup_incomplete(),
+ reason=f"missing: {Env.incomplete_reason()}")
+class TestReuse:
+
+ @pytest.fixture(autouse=True, scope='class')
+ def _class_scope(self, env, httpd, nghttpx):
+ env.make_data_file(indir=httpd.docs_dir, fname="data-100k", fsize=100*1024)
+ env.make_data_file(indir=httpd.docs_dir, fname="data-1m", fsize=1024*1024)
+ env.make_data_file(indir=httpd.docs_dir, fname="data-10m", fsize=10*1024*1024)
+ yield
+ # restore default config
+ httpd.clear_extra_configs()
+ httpd.reload()
+
+ # check if HTTP/1.1 handles 'Connection: close' correctly
+ @pytest.mark.parametrize("proto", ['http/1.1'])
+ def test_12_01_h1_conn_close(self, env: Env,
+ httpd, nghttpx, repeat, proto):
+ httpd.clear_extra_configs()
+ httpd.set_extra_config('base', [
+ f'MaxKeepAliveRequests 1',
+ ])
+ httpd.reload()
+ count = 100
+ curl = CurlClient(env=env)
+ urln = f'https://{env.authority_for(env.domain1, proto)}/data.json?[0-{count-1}]'
+ r = curl.http_download(urls=[urln], alpn_proto=proto)
+ assert r.exit_code == 0
+ r.check_stats(count=count, exp_status=200)
+ # Server sends `Connection: close` on every 2nd request, requiring
+ # a new connection
+ assert r.total_connects == count/2
+
+ @pytest.mark.parametrize("proto", ['http/1.1'])
+ def test_12_02_h1_conn_timeout(self, env: Env,
+ httpd, nghttpx, repeat, proto):
+ httpd.clear_extra_configs()
+ httpd.set_extra_config('base', [
+ f'KeepAliveTimeout 1',
+ ])
+ httpd.reload()
+ count = 5
+ curl = CurlClient(env=env)
+ urln = f'https://{env.authority_for(env.domain1, proto)}/data.json?[0-{count-1}]'
+ r = curl.http_download(urls=[urln], alpn_proto=proto, extra_args=[
+ '--rate', '30/m',
+ ])
+ assert r.exit_code == 0
+ r.check_stats(count=count, exp_status=200)
+ # Connections time out on server before we send another request,
+ assert r.total_connects == count
+ # we do not see how often a request was retried in the stats, so
+ # we cannot check that connection reuse attempted a connection that
+ # was later detected to be "dead". We would like to
+ # assert stat['retry_count'] == 0
tests/http/testenv/httpd.py+5 -0
@@ -100,6 +100,9 @@ class Httpd:
else:
self._extra_configs[domain] = lines
+ def clear_extra_configs(self):
+ self._extra_configs = {}
+
def _run(self, args, intext=''):
env = {}
for key, val in os.environ.items():
@@ -231,6 +234,8 @@ class Httpd:
f'Listen {self.env.proxys_port}',
f'TypesConfig "{self._conf_dir}/mime.types',
]
+ if 'base' in self._extra_configs:
+ conf.extend(self._extra_configs['base'])
conf.extend([ # plain http host for domain1
f'<VirtualHost *:{self.env.http_port}>',
f' ServerName {domain1}',