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diff --git a/configure.ac b/configure.ac
index 3534c0f1..56124540 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,490 +1,506 @@
#
# Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
#
# Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
# Federico Simoncelli <fsimon@kronosnet.org>
#
# This software licensed under GPL-2.0+
#
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
#
AC_PREREQ([2.63])
AC_INIT([kronosnet],
m4_esyscmd([build-aux/git-version-gen .tarball-version .gitarchivever]),
[devel@lists.kronosnet.org])
# Don't let AC_PROC_CC (invoked by AC_USE_SYSTEM_EXTENSIONS) replace
# undefined CFLAGS with -g -O2, overriding our special OPT_CFLAGS.
: ${CFLAGS=""}
AC_USE_SYSTEM_EXTENSIONS
AM_INIT_AUTOMAKE([1.13 dist-bzip2 dist-xz color-tests -Wno-portability subdir-objects])
LT_PREREQ([2.2.6])
# --enable-new-dtags: Use RUNPATH instead of RPATH.
# It is necessary to have this done before libtool does linker detection.
# See also: https://github.com/kronosnet/kronosnet/issues/107
# --as-needed: Modern systems have builtin ceil() making -lm superfluous but
# AC_SEARCH_LIBS can't detect this because it tests with a false prototype
AX_CHECK_LINK_FLAG([-Wl,--enable-new-dtags],
[AM_LDFLAGS=-Wl,--enable-new-dtags],
[AC_MSG_ERROR(["Linker support for --enable-new-dtags is required"])])
AX_CHECK_LINK_FLAG([-Wl,--as-needed], [AM_LDFLAGS="$AM_LDFLAGS -Wl,--as-needed"])
AC_SUBST([AM_LDFLAGS])
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$AM_LDFLAGS $LDFLAGS"
LT_INIT
LDFLAGS="$saved_LDFLAGS"
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_SRCDIR([kronosnetd/main.c])
AC_CONFIG_HEADERS([config.h])
AC_CANONICAL_HOST
AC_LANG([C])
systemddir=${prefix}/lib/systemd/system
if test "$prefix" = "NONE"; then
prefix="/usr"
if test "$localstatedir" = "\${prefix}/var"; then
localstatedir="/var"
fi
if test "$sysconfdir" = "\${prefix}/etc"; then
sysconfdir="/etc"
fi
if test "$systemddir" = "NONE/lib/systemd/system"; then
systemddir=/lib/systemd/system
fi
if test "$libdir" = "\${exec_prefix}/lib"; then
if test -e /usr/lib64; then
libdir="/usr/lib64"
else
libdir="/usr/lib"
fi
fi
fi
AC_PROG_AWK
AC_PROG_GREP
AC_PROG_SED
AC_PROG_CPP
AC_PROG_CC
AC_PROG_CC_C99
if test "x$ac_cv_prog_cc_c99" = "xno"; then
AC_MSG_ERROR(["C99 support is required"])
fi
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_MAKE_SET
PKG_PROG_PKG_CONFIG
AC_CHECK_PROGS([VALGRIND_EXEC], [valgrind])
AM_CONDITIONAL([HAS_VALGRIND], [test x$VALGRIND_EXEC != "x"])
AC_CHECK_PROGS([COVBUILD_EXEC], [cov-build])
AM_CONDITIONAL([HAS_COVBUILD], [test x$COVBUILD_EXEC != "x"])
AC_CHECK_PROGS([COVANALYZE_EXEC], [cov-analyze])
AM_CONDITIONAL([HAS_COVANALYZE], [test x$COVANALYZE_EXEC != "x"])
AC_CHECK_PROGS([COVFORMATERRORS_EXEC], [cov-format-errors])
AM_CONDITIONAL([HAS_COVFORMATERRORS], [test x$COVFORMATERRORS_EXEC != "x"])
# KNET_OPTION_DEFINES(stem,type,detection code)
# stem: enters name of option, Automake conditional and preprocessor define
# type: compress or crypto, determines where the default comes from
AC_DEFUN([KNET_OPTION_DEFINES],[
AC_ARG_ENABLE([$2-$1],[AS_HELP_STRING([--disable-$2-$1],[disable libknet $1 support])],,
[enable_$2_$1="$enable_$2_all"])
AM_CONDITIONAL([BUILD_]m4_toupper([$2_$1]),[test "x$enable_$2_$1" = xyes])
if test "x$enable_$2_$1" = xyes; then
$3
fi
AC_DEFINE_UNQUOTED([WITH_]m4_toupper([$2_$1]), [`test "x$enable_$2_$1" != xyes; echo $?`], $1 $2 [built in])
])
AC_ARG_ENABLE([man],
[AS_HELP_STRING([--disable-man],[disable man page creation])],,
[ enable_man="yes" ])
AM_CONDITIONAL([BUILD_MAN], [test x$enable_man = xyes])
AC_ARG_ENABLE([libknet-sctp],
[AS_HELP_STRING([--disable-libknet-sctp],[disable libknet SCTP support])],,
[ enable_libknet_sctp="yes" ])
AM_CONDITIONAL([BUILD_SCTP], [test x$enable_libknet_sctp = xyes])
AC_ARG_ENABLE([crypto-all],
[AS_HELP_STRING([--disable-crypto-all],[disable libknet all crypto modules support])],,
[ enable_crypto_all="yes" ])
KNET_OPTION_DEFINES([nss],[crypto],[PKG_CHECK_MODULES([nss], [nss])])
KNET_OPTION_DEFINES([openssl],[crypto],[PKG_CHECK_MODULES([openssl],[libcrypto])])
AC_ARG_ENABLE([compress-all],
[AS_HELP_STRING([--disable-compress-all],[disable libknet all compress modules support])],,
[ enable_compress_all="yes" ])
KNET_OPTION_DEFINES([zstd],[compress],[PKG_CHECK_MODULES([libzstd], [libzstd])])
KNET_OPTION_DEFINES([zlib],[compress],[PKG_CHECK_MODULES([zlib], [zlib])])
KNET_OPTION_DEFINES([lz4],[compress],[PKG_CHECK_MODULES([liblz4], [liblz4])])
KNET_OPTION_DEFINES([lzo2],[compress],[
PKG_CHECK_MODULES([lzo2], [lzo2],
[# work around broken pkg-config file in v2.10
AC_SUBST([lzo2_CFLAGS],[`echo $lzo2_CFLAGS | sed 's,/lzo *, ,'`])],
[AC_CHECK_HEADERS([lzo/lzo1x.h],
[AC_CHECK_LIB([lzo2], [lzo1x_decompress_safe],
[AC_SUBST([lzo2_LIBS], [-llzo2])])],
[AC_MSG_ERROR(["missing required lzo/lzo1x.h header"])])])
])
KNET_OPTION_DEFINES([lzma],[compress],[PKG_CHECK_MODULES([liblzma], [liblzma])])
KNET_OPTION_DEFINES([bzip2],[compress],[
PKG_CHECK_MODULES([bzip2], [bzip2],,
[AC_CHECK_HEADERS([bzlib.h],
[AC_CHECK_LIB([bz2], [BZ2_bzBuffToBuffCompress],
[AC_SUBST([bzip2_LIBS], [-lbz2])])],
[AC_MSG_ERROR(["missing required bzlib.h"])])])
])
AC_ARG_ENABLE([install-tests],
[AS_HELP_STRING([--enable-install-tests],[install tests])],,
[ enable_install_tests="no" ])
AM_CONDITIONAL([INSTALL_TESTS], [test x$enable_install_tests = xyes])
AC_ARG_ENABLE([poc],
[AS_HELP_STRING([--enable-poc],[enable building poc code])],,
[ enable_poc="no" ])
AM_CONDITIONAL([BUILD_POC], [test x$enable_poc = xyes])
AC_ARG_ENABLE([kronosnetd],
[AS_HELP_STRING([--enable-kronosnetd],[Kronosnetd support])],,
[ enable_kronosnetd="no" ])
AM_CONDITIONAL([BUILD_KRONOSNETD], [test x$enable_kronosnetd = xyes])
AC_ARG_ENABLE([runautogen],
[AS_HELP_STRING([--enable-runautogen],[run autogen.sh])],,
[ enable_runautogen="no" ])
AM_CONDITIONAL([BUILD_RUNAUTOGEN], [test x$enable_runautogen = xyes])
override_rpm_debuginfo_option="yes"
AC_ARG_ENABLE([rpm-debuginfo],
[AS_HELP_STRING([--enable-rpm-debuginfo],[build debuginfo packages])],,
[ enable_rpm_debuginfo="no", override_rpm_debuginfo_option="no" ])
AM_CONDITIONAL([BUILD_RPM_DEBUGINFO], [test x$enable_rpm_debuginfo = xyes])
AM_CONDITIONAL([OVERRIDE_RPM_DEBUGINFO], [test x$override_rpm_debuginfo_option = xyes])
AC_ARG_ENABLE([libnozzle],
[AS_HELP_STRING([--enable-libnozzle],[libnozzle support])],,
[ enable_libnozzle="yes" ])
if test "x$enable_kronosnetd" = xyes; then
enable_libnozzle=yes
fi
AM_CONDITIONAL([BUILD_LIBNOZZLE], [test x$enable_libnozzle = xyes])
# Checks for libraries.
AX_PTHREAD(,[AC_MSG_ERROR([POSIX threads support is required])])
saved_LIBS="$LIBS"
LIBS=
AC_SEARCH_LIBS([ceil], [m], , [AC_MSG_ERROR([ceil not found])])
AC_SUBST([m_LIBS], [$LIBS])
LIBS=
AC_SEARCH_LIBS([clock_gettime], [rt], , [AC_MSG_ERROR([clock_gettime not found])])
AC_SUBST([rt_LIBS], [$LIBS])
LIBS=
AC_SEARCH_LIBS([dlopen], [dl dld], , [AC_MSG_ERROR([dlopen not found])])
AC_SUBST([dl_LIBS], [$LIBS])
LIBS="$saved_LIBS"
# Check RTLD_DI_ORIGIN (not decalred by musl. glibc has it as an enum so cannot use ifdef)
AC_CHECK_DECL([RTLD_DI_ORIGIN], [AC_DEFINE([HAVE_RTLD_DI_ORIGIN], 1,
[define when RTLD_DI_ORIGIN is declared])], ,[[#include <dlfcn.h>]])
# OS detection
AC_MSG_CHECKING([for os in ${host_os}])
case "$host_os" in
*linux*)
AC_DEFINE_UNQUOTED([KNET_LINUX], [1], [Compiling for Linux platform])
AC_MSG_RESULT([Linux])
;;
*bsd*)
AC_DEFINE_UNQUOTED([KNET_BSD], [1], [Compiling for BSD platform])
AC_MSG_RESULT([BSD])
;;
*)
AC_MSG_ERROR([Unsupported OS? hmmmm])
;;
esac
# Checks for header files.
AC_CHECK_HEADERS([sys/epoll.h])
AC_CHECK_FUNCS([kevent])
# if neither sys/epoll.h nor kevent are present, we should fail.
if test "x$ac_cv_header_sys_epoll_h" = xno && test "x$ac_cv_func_kevent" = xno; then
AC_MSG_ERROR([Both epoll and kevent unavailable on this OS])
fi
if test "x$ac_cv_header_sys_epoll_h" = xyes && test "x$ac_cv_func_kevent" = xyes; then
AC_MSG_ERROR([Both epoll and kevent available on this OS, please contact the maintainers to fix the code])
fi
if test "x$enable_libknet_sctp" = xyes; then
AC_CHECK_HEADERS([netinet/sctp.h],, [AC_MSG_ERROR(["missing required SCTP headers"])])
fi
# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_TYPE_INT8_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
+PKG_CHECK_MODULES([libqb], [libqb])
+
if test "x$enable_man" = "xyes"; then
AC_ARG_VAR([DOXYGEN], [override doxygen executable])
AC_CHECK_PROGS([DOXYGEN], [doxygen], [no])
if test "x$DOXYGEN" = xno; then
AC_MSG_ERROR(["Doxygen command not found"])
fi
- # required by doxyxml to build man pages dynamically
- # Don't let AC_PROC_CC (invoked by AX_PROG_CC_FOR_BUILD) replace
- # undefined CFLAGS_FOR_BUILD with -g -O2, overriding our special OPT_CFLAGS.
- : ${CFLAGS_FOR_BUILD=""}
- AX_PROG_CC_FOR_BUILD
- saved_PKG_CONFIG="$PKG_CONFIG"
- saved_ac_cv_path_PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
- unset PKG_CONFIG ac_cv_path_PKG_CONFIG
- AC_PATH_PROG([PKG_CONFIG], [pkg-config])
- PKG_CHECK_MODULES([libqb_BUILD], [libqb])
- PKG_CHECK_MODULES([libxml_BUILD], [libxml-2.0])
- PKG_CONFIG="$saved_PKG_CONFIG"
- ac_cv_path_PKG_CONFIG="$saved_ac_cv_path_PKG_CONFIG"
+
+ AC_ARG_VAR([DOXYGEN2MAN], [override doxygen2man executable])
+ if test "x$cross_compiling" = "xno"; then
+ PKG_CHECK_VAR([libqb_PREFIX], [libqb], [prefix])
+ AC_PATH_PROG([DOXYGEN2MAN], [doxygen2man], [no], [$libqb_PREFIX/bin$PATH_SEPARATOR$PATH])
+ fi
+ if test "x$DOXYGEN2MAN" = "xno"; then
+ # required by doxyxml to build man pages dynamically
+ # Don't let AC_PROC_CC (invoked by AX_PROG_CC_FOR_BUILD) replace
+ # undefined CFLAGS_FOR_BUILD with -g -O2, overriding our special OPT_CFLAGS.
+ : ${CFLAGS_FOR_BUILD=""}
+ AX_PROG_CC_FOR_BUILD
+ saved_PKG_CONFIG="$PKG_CONFIG"
+ saved_ac_cv_path_PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+ unset PKG_CONFIG ac_cv_path_PKG_CONFIG
+ AC_PATH_PROG([PKG_CONFIG], [pkg-config])
+ PKG_CHECK_MODULES([libqb_BUILD], [libqb])
+ PKG_CHECK_VAR([libqb_BUILD_PREFIX], [libqb], [prefix])
+ AC_PATH_PROG([DOXYGEN2MAN], [doxygen2man], [no], [$libqb_BUILD_PREFIX/bin$PATH_SEPARATOR$PATH])
+ if test "x$DOXYGEN2MAN" = "xno"; then
+ PKG_CHECK_MODULES([libxml_BUILD], [libxml-2.0])
+ DOXYGEN2MAN="\${abs_top_builddir}/man/doxyxml"
+ build_doxy=yes
+ fi
+ PKG_CONFIG="$saved_PKG_CONFIG"
+ ac_cv_path_PKG_CONFIG="$saved_ac_cv_path_PKG_CONFIG"
+ fi
+ AC_SUBST([DOXYGEN2MAN])
+ AM_CONDITIONAL([BUILD_DOXYXML], [test "x$build_doxy" = "xyes"])
fi
# checks for libnozzle
if test "x$enable_libnozzle" = xyes; then
if `echo $host_os | grep -q linux`; then
PKG_CHECK_MODULES([libnl], [libnl-3.0])
PKG_CHECK_MODULES([libnlroute], [libnl-route-3.0 >= 3.3], [],
[PKG_CHECK_MODULES([libnlroute], [libnl-route-3.0 < 3.3],
[AC_DEFINE_UNQUOTED([LIBNL3_WORKAROUND], [1], [Enable libnl < 3.3 build workaround])], [])])
fi
fi
# checks for kronosnetd
if test "x$enable_kronosnetd" = xyes; then
AC_CHECK_HEADERS([security/pam_appl.h],
[AC_CHECK_LIB([pam], [pam_start],
[AC_SUBST([pam_LIBS], [-lpam])],
[AC_MSG_ERROR([Unable to find LinuxPAM devel files])])])
AC_CHECK_HEADERS([security/pam_misc.h],
[AC_CHECK_LIB([pam_misc], [misc_conv],
[AC_SUBST([pam_misc_LIBS], [-lpam_misc])],
[AC_MSG_ERROR([Unable to find LinuxPAM MISC devel files])])])
- PKG_CHECK_MODULES([libqb], [libqb])
-
AC_CHECK_LIB([qb], [qb_log_thread_priority_set],
[have_qb_log_thread_priority_set="yes"],
[have_qb_log_thread_priority_set="no"])
if test "x${have_qb_log_thread_priority_set}" = xyes; then
AC_DEFINE_UNQUOTED([HAVE_QB_LOG_THREAD_PRIORITY_SET], [1], [have qb_log_thread_priority_set])
fi
fi
# local options
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],[enable debug build])])
AC_ARG_WITH([testdir],
[AS_HELP_STRING([--with-testdir=DIR],[path to /usr/lib../kronosnet/tests/ dir where to install the test suite])],
[ TESTDIR="$withval" ],
[ TESTDIR="$libdir/kronosnet/tests" ])
AC_ARG_WITH([initdefaultdir],
[AS_HELP_STRING([--with-initdefaultdir=DIR],[path to /etc/sysconfig or /etc/default dir])],
[ INITDEFAULTDIR="$withval" ],
[ INITDEFAULTDIR="$sysconfdir/default" ])
AC_ARG_WITH([initddir],
[AS_HELP_STRING([--with-initddir=DIR],[path to init script directory])],
[ INITDDIR="$withval" ],
[ INITDDIR="$sysconfdir/init.d" ])
AC_ARG_WITH([systemddir],
[AS_HELP_STRING([--with-systemddir=DIR],[path to systemd unit files directory])],
[ SYSTEMDDIR="$withval" ],
[ SYSTEMDDIR="$systemddir" ])
AC_ARG_WITH([syslogfacility],
[AS_HELP_STRING([--with-syslogfacility=FACILITY],[default syslog facility])],
[ SYSLOGFACILITY="$withval" ],
[ SYSLOGFACILITY="LOG_DAEMON" ])
AC_ARG_WITH([sysloglevel],
[AS_HELP_STRING([--with-sysloglevel=LEVEL],[default syslog level])],
[ SYSLOGLEVEL="$withval" ],
[ SYSLOGLEVEL="LOG_INFO" ])
AC_ARG_WITH([defaultadmgroup],
[AS_HELP_STRING([--with-defaultadmgroup=GROUP],
[define PAM group. Users part of this group will be allowed to configure
kronosnet. Others will only receive read-only rights.])],
[ DEFAULTADMGROUP="$withval" ],
[ DEFAULTADMGROUP="kronosnetadm" ])
## random vars
LOGDIR=${localstatedir}/log/
RUNDIR=${localstatedir}/run/
DEFAULT_CONFIG_DIR=${sysconfdir}/kronosnet
## do subst
AC_SUBST([TESTDIR])
AC_SUBST([DEFAULT_CONFIG_DIR])
AC_SUBST([INITDEFAULTDIR])
AC_SUBST([INITDDIR])
AC_SUBST([SYSTEMDDIR])
AC_SUBST([LOGDIR])
AC_SUBST([DEFAULTADMGROUP])
AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_DIR],
["$(eval echo ${DEFAULT_CONFIG_DIR})"],
[Default config directory])
AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_FILE],
["$(eval echo ${DEFAULT_CONFIG_DIR}/kronosnetd.conf)"],
[Default config file])
AC_DEFINE_UNQUOTED([LOGDIR],
["$(eval echo ${LOGDIR})"],
[Default logging directory])
AC_DEFINE_UNQUOTED([DEFAULT_LOG_FILE],
["$(eval echo ${LOGDIR}/kronosnetd.log)"],
[Default log file])
AC_DEFINE_UNQUOTED([RUNDIR],
["$(eval echo ${RUNDIR})"],
[Default run directory])
AC_DEFINE_UNQUOTED([SYSLOGFACILITY],
[$(eval echo ${SYSLOGFACILITY})],
[Default syslog facility])
AC_DEFINE_UNQUOTED([SYSLOGLEVEL],
[$(eval echo ${SYSLOGLEVEL})],
[Default syslog level])
AC_DEFINE_UNQUOTED([DEFAULTADMGROUP],
["$(eval echo ${DEFAULTADMGROUP})"],
[Default admin group])
# debug build stuff
if test "x${enable_debug}" = xyes; then
AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code])
OPT_CFLAGS="-O0"
else
OPT_CFLAGS="-O3"
fi
# gdb flags
if test "x${GCC}" = xyes; then
GDB_FLAGS="-ggdb3"
else
GDB_FLAGS="-g"
fi
DEFAULT_CFLAGS="-Werror -Wall -Wextra"
# manual overrides
# generates too much noise for stub APIs
UNWANTED_CFLAGS="-Wno-unused-parameter"
AC_SUBST([AM_CFLAGS],["$OPT_CFLAGS $GDB_FLAGS $DEFAULT_CFLAGS $UNWANTED_CFLAGS"])
AX_PROG_DATE
AS_IF([test "$ax_cv_prog_date_gnu_date:$ax_cv_prog_date_gnu_utc" = yes:yes],
[UTC_DATE_AT="date -u -d@"],
[AS_IF([test "x$ax_cv_prog_date_bsd_date" = xyes],
[UTC_DATE_AT="date -u -r"],
[AC_MSG_ERROR([date utility unable to convert epoch to UTC])])])
AC_SUBST([UTC_DATE_AT])
AC_ARG_VAR([SOURCE_EPOCH],[last modification date of the source])
AC_MSG_NOTICE([trying to determine source epoch])
AC_MSG_CHECKING([for source epoch in \$SOURCE_EPOCH])
AS_IF([test -n "$SOURCE_EPOCH"],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
AC_MSG_CHECKING([for source epoch in source_epoch file])
AS_IF([test -e "$srcdir/source_epoch"],
[read SOURCE_EPOCH <"$srcdir/source_epoch"
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
AC_MSG_CHECKING([for source epoch baked in by gitattributes export-subst])
SOURCE_EPOCH='$Format:%at$' # template for rewriting by git-archive
AS_CASE([$SOURCE_EPOCH],
[?Format:*], # was not rewritten
[AC_MSG_RESULT([no])
AC_MSG_CHECKING([for source epoch in \$SOURCE_DATE_EPOCH])
AS_IF([test "x$SOURCE_DATE_EPOCH" != x],
[SOURCE_EPOCH="$SOURCE_DATE_EPOCH"
AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
AC_MSG_CHECKING([whether git log can provide a source epoch])
SOURCE_EPOCH=f${SOURCE_EPOCH#\$F} # convert into git log --pretty format
SOURCE_EPOCH=$(cd "$srcdir" && git log -1 --pretty=${SOURCE_EPOCH%$} 2>/dev/null)
AS_IF([test -n "$SOURCE_EPOCH"],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no, using current time and breaking reproducibility])
SOURCE_EPOCH=$(date +%s)])])],
[AC_MSG_RESULT([yes])]
)])
])
AC_MSG_NOTICE([using source epoch $($UTC_DATE_AT$SOURCE_EPOCH +'%F %T %Z')])
AC_CONFIG_FILES([
Makefile
init/Makefile
libnozzle/Makefile
libnozzle/libnozzle.pc
libnozzle/tests/Makefile
kronosnetd/Makefile
kronosnetd/kronosnetd.logrotate
libknet/Makefile
libknet/libknet.pc
libknet/tests/Makefile
man/Makefile
man/Doxyfile-knet
man/Doxyfile-nozzle
poc-code/Makefile
poc-code/iov-hash/Makefile
])
if test "x$VERSION" = "xUNKNOWN"; then
AC_MSG_ERROR([m4_text_wrap([
configure was unable to determine the source tree's current version. This
generally happens when using git archive (or the github download button)
generated tarball/zip file. In order to workaround this issue, either use git
clone https://github.com/kronosnet/kronosnet.git or use an official release
tarball, available at https://kronosnet.org/releases/. Alternatively you
can add a compatible version in a .tarball-version file at the top of the
source tree, wipe your autom4te.cache dir and generated configure, and rerun
autogen.sh.
], [ ], [ ], [76])])
fi
AC_OUTPUT
diff --git a/kronosnet.spec.in b/kronosnet.spec.in
index 28b0ea20..6c0b6c5d 100644
--- a/kronosnet.spec.in
+++ b/kronosnet.spec.in
@@ -1,512 +1,512 @@
###############################################################################
###############################################################################
##
## Copyright (C) 2012-2020 Red Hat, Inc. All rights reserved.
##
## This copyrighted material is made available to anyone wishing to use,
## modify, copy, or redistribute it subject to the terms and conditions
## of the GNU General Public License v.2 or higher
##
###############################################################################
###############################################################################
# keep around ready for later user
%global alphatag @alphatag@
%global numcomm @numcomm@
%global dirty @dirty@
# set defaults from ./configure invokation
%@sctp@ sctp
%@nss@ nss
%@openssl@ openssl
%@zlib@ zlib
%@lz4@ lz4
%@lzo2@ lzo2
%@lzma@ lzma
%@bzip2@ bzip2
%@zstd@ zstd
%@kronosnetd@ kronosnetd
%@libnozzle@ libnozzle
%@runautogen@ runautogen
%@rpmdebuginfo@ rpmdebuginfo
%@overriderpmdebuginfo@ overriderpmdebuginfo
%@buildman@ buildman
%@installtests@ installtests
%if %{with overriderpmdebuginfo}
%undefine _enable_debug_packages
%endif
# main (empty) package
# http://www.rpm.org/max-rpm/s1-rpm-subpack-spec-file-changes.html
Name: kronosnet
Summary: Multipoint-to-Multipoint VPN daemon
Version: @version@
Release: 1%{?numcomm:.%{numcomm}}%{?alphatag:.%{alphatag}}%{?dirty:.%{dirty}}%{?dist}
License: GPLv2+ and LGPLv2+
URL: https://kronosnet.org
Source0: https://kronosnet.org/releases/%{name}-%{version}%{?numcomm:.%{numcomm}}%{?alphatag:-%{alphatag}}%{?dirty:-%{dirty}}.tar.gz
# Build dependencies
-BuildRequires: gcc
+BuildRequires: gcc libqb-devel
# required to build man pages
%if %{with buildman}
-BuildRequires: libqb-devel libxml2-devel doxygen
+BuildRequires: libxml2-devel doxygen
%endif
%if %{with sctp}
BuildRequires: lksctp-tools-devel
%endif
%if %{with nss}
%if 0%{?suse_version}
BuildRequires: mozilla-nss-devel
%else
BuildRequires: nss-devel
%endif
%endif
%if %{with openssl}
%if 0%{?suse_version}
BuildRequires: libopenssl-devel
%else
BuildRequires: openssl-devel
%endif
%endif
%if %{with zlib}
BuildRequires: zlib-devel
%endif
%if %{with lz4}
%if 0%{?suse_version}
BuildRequires: liblz4-devel
%else
BuildRequires: lz4-devel
%endif
%endif
%if %{with lzo2}
BuildRequires: lzo-devel
%endif
%if %{with lzma}
BuildRequires: xz-devel
%endif
%if %{with bzip2}
%if 0%{?suse_version}
BuildRequires: libbz2-devel
%else
BuildRequires: bzip2-devel
%endif
%endif
%if %{with zstd}
BuildRequires: libzstd-devel
%endif
%if %{with kronosnetd}
BuildRequires: pam-devel
%endif
%if %{with libnozzle}
BuildRequires: libnl3-devel
%endif
%if %{with runautogen}
BuildRequires: autoconf automake libtool
%endif
%prep
%setup -q -n %{name}-%{version}%{?numcomm:.%{numcomm}}%{?alphatag:-%{alphatag}}%{?dirty:-%{dirty}}
%build
%if %{with runautogen}
./autogen.sh
%endif
%{configure} \
%if %{with installtests}
--enable-install-tests \
%else
--disable-install-tests \
%endif
%if %{with buildman}
--enable-man \
%else
--disable-man \
%endif
%if %{with sctp}
--enable-libknet-sctp \
%else
--disable-libknet-sctp \
%endif
%if %{with nss}
--enable-crypto-nss \
%else
--disable-crypto-nss \
%endif
%if %{with openssl}
--enable-crypto-openssl \
%else
--disable-crypto-openssl \
%endif
%if %{with zlib}
--enable-compress-zlib \
%else
--disable-compress-zlib \
%endif
%if %{with lz4}
--enable-compress-lz4 \
%else
--disable-compress-lz4 \
%endif
%if %{with lzo2}
--enable-compress-lzo2 \
%else
--disable-compress-lzo2 \
%endif
%if %{with lzma}
--enable-compress-lzma \
%else
--disable-compress-lzma \
%endif
%if %{with bzip2}
--enable-compress-bzip2 \
%else
--disable-compress-bzip2 \
%endif
%if %{with zstd}
--enable-compress-zstd \
%else
--disable-compress-zstd \
%endif
%if %{with kronosnetd}
--enable-kronosnetd \
%else
--disable-kronosnetd \
%endif
%if %{with libnozzle}
--enable-libnozzle \
%else
--disable-libnozzle \
%endif
--with-initdefaultdir=%{_sysconfdir}/sysconfig/ \
--with-systemddir=%{_unitdir}
make %{_smp_mflags}
%install
rm -rf %{buildroot}
make install DESTDIR=%{buildroot}
# tree cleanup
# remove static libraries
find %{buildroot} -name "*.a" -exec rm {} \;
# remove libtools leftovers
find %{buildroot} -name "*.la" -exec rm {} \;
# remove init scripts
rm -rf %{buildroot}/etc/init.d
# remove docs
rm -rf %{buildroot}/usr/share/doc/kronosnet
# main empty package
%description
The kronosnet source
%if %{with kronosnetd}
## Runtime and subpackages section
%package -n kronosnetd
Summary: Multipoint-to-Multipoint VPN daemon
License: GPLv2+
Requires(post): systemd-sysv
Requires(post): systemd-units
Requires(preun): systemd-units
Requires(postun): systemd-units
Requires(post): shadow-utils
Requires(preun): shadow-utils
Requires: pam, /etc/pam.d/passwd
%description -n kronosnetd
The kronosnet daemon is a bridge between kronosnet switching engine
and kernel network tap devices, to create and administer a
distributed LAN over multipoint-to-multipoint VPNs.
The daemon does a poor attempt to provide a configure UI similar
to other known network devices/tools (Cisco, quagga).
Beside looking horrific, it allows runtime changes and
reconfiguration of the kronosnet(s) without daemon reload
or service disruption.
%post -n kronosnetd
%systemd_post kronosnetd.service
getent group @defaultadmgroup@ >/dev/null || groupadd --force --system @defaultadmgroup@
%preun -n kronosnetd
%systemd_preun kronosnetd.service
%files -n kronosnetd
%license COPYING.* COPYRIGHT
%dir %{_sysconfdir}/kronosnet
%dir %{_sysconfdir}/kronosnet/*
%config(noreplace) %{_sysconfdir}/sysconfig/kronosnetd
%config(noreplace) %{_sysconfdir}/pam.d/kronosnetd
%config(noreplace) %{_sysconfdir}/logrotate.d/kronosnetd
%{_unitdir}/kronosnetd.service
%{_sbindir}/*
%{_mandir}/man8/*
%endif
%if %{with libnozzle}
%package -n libnozzle1
Summary: Simple userland wrapper around kernel tap devices
License: LGPLv2+
%description -n libnozzle1
This is an over-engineered commodity library to manage a pool
of tap devices and provides the basic
pre-up.d/up.d/down.d/post-down.d infrastructure.
%files -n libnozzle1
%license COPYING.* COPYRIGHT
%{_libdir}/libnozzle.so.*
%if 0%{?ldconfig_scriptlets}
%ldconfig_scriptlets -n libnozzle1
%else
%post -n libnozzle1 -p /sbin/ldconfig
%postun -n libnozzle1 -p /sbin/ldconfig
%endif
%package -n libnozzle1-devel
Summary: Simple userland wrapper around kernel tap devices (developer files)
License: LGPLv2+
Requires: libnozzle1%{_isa} = %{version}-%{release}
Requires: pkgconfig
%description -n libnozzle1-devel
This is an over-engineered commodity library to manage a pool
of tap devices and provides the basic
pre-up.d/up.d/down.d/post-down.d infrastructure.
%files -n libnozzle1-devel
%license COPYING.* COPYRIGHT
%{_libdir}/libnozzle.so
%{_includedir}/libnozzle.h
%{_libdir}/pkgconfig/libnozzle.pc
%if %{with buildman}
%{_mandir}/man3/nozzle*.3.gz
%endif
%endif
%package -n libknet1
Summary: Kronosnet core switching implementation
License: LGPLv2+
%description -n libknet1
The whole kronosnet core is implemented in this library.
Please refer to the not-yet-existing documentation for further
information.
%files -n libknet1
%license COPYING.* COPYRIGHT
%{_libdir}/libknet.so.*
%dir %{_libdir}/kronosnet
%if 0%{?ldconfig_scriptlets}
%ldconfig_scriptlets -n libknet1
%else
%post -n libknet1 -p /sbin/ldconfig
%postun -n libknet1 -p /sbin/ldconfig
%endif
%package -n libknet1-devel
Summary: Kronosnet core switching implementation (developer files)
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
Requires: pkgconfig
%description -n libknet1-devel
The whole kronosnet core is implemented in this library.
Please refer to the not-yet-existing documentation for further
information.
%files -n libknet1-devel
%license COPYING.* COPYRIGHT
%{_libdir}/libknet.so
%{_includedir}/libknet.h
%{_libdir}/pkgconfig/libknet.pc
%if %{with buildman}
%{_mandir}/man3/knet*.3.gz
%endif
%if %{with nss}
%package -n libknet1-crypto-nss-plugin
Summary: Provides libknet1 nss support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-crypto-nss-plugin
Provides NSS crypto support for libknet1.
%files -n libknet1-crypto-nss-plugin
%{_libdir}/kronosnet/crypto_nss.so
%endif
%if %{with openssl}
%package -n libknet1-crypto-openssl-plugin
Summary: Provides libknet1 openssl support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-crypto-openssl-plugin
Provides OpenSSL crypto support for libknet1.
%files -n libknet1-crypto-openssl-plugin
%{_libdir}/kronosnet/crypto_openssl.so
%endif
%if %{with zlib}
%package -n libknet1-compress-zlib-plugin
Summary: Provides libknet1 zlib support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-zlib-plugin
Provides zlib compression support for libknet1.
%files -n libknet1-compress-zlib-plugin
%{_libdir}/kronosnet/compress_zlib.so
%endif
%if %{with lz4}
%package -n libknet1-compress-lz4-plugin
Summary: Provides libknet1 lz4 and lz4hc support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-lz4-plugin
Provides lz4 and lz4hc compression support for libknet1.
%files -n libknet1-compress-lz4-plugin
%{_libdir}/kronosnet/compress_lz4.so
%{_libdir}/kronosnet/compress_lz4hc.so
%endif
%if %{with lzo2}
%package -n libknet1-compress-lzo2-plugin
Summary: Provides libknet1 lzo2 support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-lzo2-plugin
Provides lzo2 compression support for libknet1.
%files -n libknet1-compress-lzo2-plugin
%{_libdir}/kronosnet/compress_lzo2.so
%endif
%if %{with lzma}
%package -n libknet1-compress-lzma-plugin
Summary: Provides libknet1 lzma support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-lzma-plugin
Provides lzma compression support for libknet1.
%files -n libknet1-compress-lzma-plugin
%{_libdir}/kronosnet/compress_lzma.so
%endif
%if %{with bzip2}
%package -n libknet1-compress-bzip2-plugin
Summary: Provides libknet1 bzip2 support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-bzip2-plugin
Provides bzip2 compression support for libknet1.
%files -n libknet1-compress-bzip2-plugin
%{_libdir}/kronosnet/compress_bzip2.so
%endif
%if %{with zstd}
%package -n libknet1-compress-zstd-plugin
Summary: Provides libknet1 zstd support
License: LGPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n libknet1-compress-zstd-plugin
Provides zstd compression support for libknet1.
%files -n libknet1-compress-zstd-plugin
%{_libdir}/kronosnet/compress_zstd.so
%endif
%package -n libknet1-crypto-plugins-all
Summary: Provides libknet1 crypto plugins meta package
License: LGPLv2+
%if %{with nss}
Requires: libknet1-crypto-nss-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with openssl}
Requires: libknet1-crypto-openssl-plugin%{_isa} = %{version}-%{release}
%endif
%description -n libknet1-crypto-plugins-all
Provides meta package to install all of libknet1 crypto plugins
%files -n libknet1-crypto-plugins-all
%package -n libknet1-compress-plugins-all
Summary: Provides libknet1 compress plugins meta package
License: LGPLv2+
%if %{with zlib}
Requires: libknet1-compress-zlib-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with lz4}
Requires: libknet1-compress-lz4-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with lzo2}
Requires: libknet1-compress-lzo2-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with lzma}
Requires: libknet1-compress-lzma-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with bzip2}
Requires: libknet1-compress-bzip2-plugin%{_isa} = %{version}-%{release}
%endif
%if %{with zstd}
Requires: libknet1-compress-zstd-plugin%{_isa} = %{version}-%{release}
%endif
%description -n libknet1-compress-plugins-all
Meta package to install all of libknet1 compress plugins
%files -n libknet1-compress-plugins-all
%package -n libknet1-plugins-all
Summary: Provides libknet1 plugins meta package
License: LGPLv2+
Requires: libknet1-compress-plugins-all%{_isa} = %{version}-%{release}
Requires: libknet1-crypto-plugins-all%{_isa} = %{version}-%{release}
%description -n libknet1-plugins-all
Meta package to install all of libknet1 plugins
%files -n libknet1-plugins-all
%if %{with installtests}
%package -n kronosnet-tests
Summary: Provides kronosnet test suite
License: GPLv2+
Requires: libknet1%{_isa} = %{version}-%{release}
%description -n kronosnet-tests
This package contains all the libknet and libnozzle test suite.
%files -n kronosnet-tests
%{_libdir}/kronosnet/tests/*
%endif
%if %{with rpmdebuginfo}
%debug_package
%endif
%changelog
* @date@ Autotools generated version <nobody@nowhere.org> - @version@-1-@numcomm@.@alphatag@.@dirty@
- These aren't the droids you're looking for.
diff --git a/libknet/Makefile.am b/libknet/Makefile.am
index f9ba25db..3550a86a 100644
--- a/libknet/Makefile.am
+++ b/libknet/Makefile.am
@@ -1,164 +1,166 @@
#
# Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
#
# Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
# Federico Simoncelli <fsimon@kronosnet.org>
#
# This software licensed under GPL-2.0+
#
MAINTAINERCLEANFILES = Makefile.in
include $(top_srcdir)/build-aux/check.mk
SYMFILE = libknet_exported_syms
EXTRA_DIST = $(SYMFILE)
SUBDIRS = . tests
# https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
libversion = 4:0:3
# override global LIBS that pulls in lots of craft we don't need here
LIBS =
sources = \
common.c \
compat.c \
compress.c \
crypto.c \
handle.c \
host.c \
links.c \
links_acl.c \
links_acl_ip.c \
links_acl_loopback.c \
logging.c \
netutils.c \
onwire.c \
threads_common.c \
threads_dsthandler.c \
threads_heartbeat.c \
threads_pmtud.c \
threads_rx.c \
threads_tx.c \
transports.c \
transport_common.c \
transport_loopback.c \
transport_udp.c \
transport_sctp.c
include_HEADERS = libknet.h
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libknet.pc
noinst_HEADERS = \
common.h \
compat.h \
compress.h \
compress_model.h \
crypto.h \
crypto_model.h \
host.h \
internals.h \
links.h \
links_acl.h \
links_acl_ip.h \
links_acl_loopback.h \
logging.h \
netutils.h \
onwire.h \
threads_common.h \
threads_dsthandler.h \
threads_heartbeat.h \
threads_pmtud.h \
threads_rx.h \
threads_tx.h \
transports.h \
transport_common.h \
transport_loopback.h \
transport_udp.h \
transport_sctp.h
lib_LTLIBRARIES = libknet.la
libknet_la_SOURCES = $(sources)
+AM_CFLAGS += $(libqb_CFLAGS)
+
libknet_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
EXTRA_libknet_la_DEPENDENCIES = $(SYMFILE)
libknet_la_LDFLAGS = $(AM_LDFLAGS) \
-Wl,--version-script=$(srcdir)/$(SYMFILE) \
-Wl,-rpath=$(pkglibdir) \
-version-info $(libversion)
libknet_la_LIBADD = $(PTHREAD_LIBS) $(dl_LIBS) $(rt_LIBS) $(m_LIBS)
# Prepare empty value for appending
pkglib_LTLIBRARIES =
# MODULE_LDFLAGS would mean a target-specific variable for Automake
MODULELDFLAGS = $(AM_LDFLAGS) -module -avoid-version -export-dynamic
if BUILD_COMPRESS_ZSTD
pkglib_LTLIBRARIES += compress_zstd.la
compress_zstd_la_LDFLAGS = $(MODULELDFLAGS)
compress_zstd_la_CFLAGS = $(AM_CFLAGS) $(libzstd_CFLAGS)
compress_zstd_la_LIBADD = $(libzstd_LIBS)
endif
if BUILD_COMPRESS_ZLIB
pkglib_LTLIBRARIES += compress_zlib.la
compress_zlib_la_LDFLAGS = $(MODULELDFLAGS)
compress_zlib_la_CFLAGS = $(AM_CFLAGS) $(zlib_CFLAGS)
compress_zlib_la_LIBADD = $(zlib_LIBS)
endif
if BUILD_COMPRESS_LZ4
pkglib_LTLIBRARIES += compress_lz4.la compress_lz4hc.la
compress_lz4_la_LDFLAGS = $(MODULELDFLAGS)
compress_lz4_la_CFLAGS = $(AM_CFLAGS) $(liblz4_CFLAGS)
compress_lz4_la_LIBADD = $(liblz4_LIBS)
compress_lz4hc_la_LDFLAGS = $(MODULELDFLAGS)
compress_lz4hc_la_CFLAGS = $(AM_CFLAGS) $(liblz4_CFLAGS)
compress_lz4hc_la_LIBADD = $(liblz4_LIBS)
endif
if BUILD_COMPRESS_LZO2
pkglib_LTLIBRARIES += compress_lzo2.la
compress_lzo2_la_LDFLAGS = $(MODULELDFLAGS)
compress_lzo2_la_CFLAGS = $(AM_CFLAGS) $(lzo2_CFLAGS)
compress_lzo2_la_LIBADD = $(lzo2_LIBS)
endif
if BUILD_COMPRESS_LZMA
pkglib_LTLIBRARIES += compress_lzma.la
compress_lzma_la_LDFLAGS = $(MODULELDFLAGS)
compress_lzma_la_CFLAGS = $(AM_CFLAGS) $(liblzma_CFLAGS)
compress_lzma_la_LIBADD = $(liblzma_LIBS)
endif
if BUILD_COMPRESS_BZIP2
pkglib_LTLIBRARIES += compress_bzip2.la
compress_bzip2_la_LDFLAGS = $(MODULELDFLAGS)
compress_bzip2_la_CFLAGS = $(AM_CFLAGS) $(bzip2_CFLAGS)
compress_bzip2_la_LIBADD = $(bzip2_LIBS)
endif
if BUILD_CRYPTO_NSS
pkglib_LTLIBRARIES += crypto_nss.la
crypto_nss_la_LDFLAGS = $(MODULELDFLAGS)
crypto_nss_la_CFLAGS = $(AM_CFLAGS) $(nss_CFLAGS)
crypto_nss_la_LIBADD = $(nss_LIBS)
endif
if BUILD_CRYPTO_OPENSSL
pkglib_LTLIBRARIES += crypto_openssl.la
crypto_openssl_la_LDFLAGS = $(MODULELDFLAGS)
crypto_openssl_la_CFLAGS = $(AM_CFLAGS) $(openssl_CFLAGS)
crypto_openssl_la_LIBADD = $(openssl_LIBS)
endif
diff --git a/libknet/internals.h b/libknet/internals.h
index 94e208b6..b763d4a9 100644
--- a/libknet/internals.h
+++ b/libknet/internals.h
@@ -1,580 +1,418 @@
/*
* Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
* Federico Simoncelli <fsimon@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#ifndef __KNET_INTERNALS_H__
#define __KNET_INTERNALS_H__
/*
* NOTE: you shouldn't need to include this header normally
*/
#include <pthread.h>
+#include <stddef.h>
+#include <qb/qblist.h>
#include "libknet.h"
#include "onwire.h"
#include "compat.h"
#include "threads_common.h"
#define KNET_DATABUFSIZE KNET_MAX_PACKET_SIZE + KNET_HEADER_ALL_SIZE
#define KNET_DATABUFSIZE_CRYPT_PAD 1024
#define KNET_DATABUFSIZE_CRYPT KNET_DATABUFSIZE + KNET_DATABUFSIZE_CRYPT_PAD
#define KNET_DATABUFSIZE_COMPRESS_PAD 1024
#define KNET_DATABUFSIZE_COMPRESS KNET_DATABUFSIZE + KNET_DATABUFSIZE_COMPRESS_PAD
#define KNET_RING_RCVBUFF 8388608
#define PCKT_FRAG_MAX UINT8_MAX
#define PCKT_RX_BUFS 512
#define KNET_EPOLL_MAX_EVENTS KNET_DATAFD_MAX + 1
#define KNET_INTERNAL_DATA_CHANNEL KNET_DATAFD_MAX
/*
* Size of threads stack. Value is choosen by experimenting, how much is needed
* to sucesfully finish test suite, and at the time of writing patch it was
* ~300KiB. To have some room for future enhancement it is increased
* by factor of 3 and rounded.
*/
#define KNET_THREAD_STACK_SIZE (1024 * 1024)
typedef void *knet_transport_link_t; /* per link transport handle */
typedef void *knet_transport_t; /* per knet_h transport handle */
struct knet_transport_ops; /* Forward because of circular dependancy */
struct knet_mmsghdr {
struct msghdr msg_hdr; /* Message header */
unsigned int msg_len; /* Number of bytes transmitted */
};
struct knet_link {
/* required */
struct sockaddr_storage src_addr;
struct sockaddr_storage dst_addr;
/* configurable */
unsigned int dynamic; /* see KNET_LINK_DYN_ define above */
uint8_t priority; /* higher priority == preferred for A/P */
unsigned long long ping_interval; /* interval */
unsigned long long pong_timeout; /* timeout */
unsigned long long pong_timeout_adj; /* timeout adjusted for latency */
uint8_t pong_timeout_backoff; /* see link.h for definition */
unsigned int latency_max_samples; /* precision */
unsigned int latency_cur_samples;
uint8_t pong_count; /* how many ping/pong to send/receive before link is up */
uint64_t flags;
/* status */
struct knet_link_status status;
/* internals */
pthread_mutex_t link_stats_mutex; /* used to update link stats */
uint8_t link_id;
uint8_t transport; /* #defined constant from API */
knet_transport_link_t transport_link; /* link_info_t from transport */
int outsock;
unsigned int configured:1; /* set to 1 if src/dst have been configured transport initialized on this link*/
unsigned int transport_connected:1; /* set to 1 if lower level transport is connected */
uint8_t received_pong;
struct timespec ping_last;
/* used by PMTUD thread as temp per-link variables and should always contain the onwire_len value! */
uint32_t proto_overhead; /* IP + UDP/SCTP overhead. NOT to be confused
with stats.proto_overhead that includes also knet headers
and crypto headers */
struct timespec pmtud_last;
uint32_t last_ping_size;
uint32_t last_good_mtu;
uint32_t last_bad_mtu;
uint32_t last_sent_mtu;
uint32_t last_recv_mtu;
uint32_t pmtud_crypto_timeout_multiplier;/* used by PMTUd to adjust timeouts on high loads */
uint8_t has_valid_mtu;
};
#define KNET_CBUFFER_SIZE 4096
struct knet_host_defrag_buf {
char buf[KNET_DATABUFSIZE];
uint8_t in_use; /* 0 buffer is free, 1 is in use */
seq_num_t pckt_seq; /* identify the pckt we are receiving */
uint8_t frag_recv; /* how many frags did we receive */
uint8_t frag_map[PCKT_FRAG_MAX];/* bitmap of what we received? */
uint8_t last_first; /* special case if we receive the last fragment first */
ssize_t frag_size; /* normal frag size (not the last one) */
ssize_t last_frag_size; /* the last fragment might not be aligned with MTU size */
struct timespec last_update; /* keep time of the last pckt */
};
struct knet_host {
/* required */
knet_node_id_t host_id;
/* configurable */
uint8_t link_handler_policy;
char name[KNET_MAX_HOST_LEN];
/* status */
struct knet_host_status status;
/* internals */
char circular_buffer[KNET_CBUFFER_SIZE];
seq_num_t rx_seq_num;
seq_num_t untimed_rx_seq_num;
seq_num_t timed_rx_seq_num;
uint8_t got_data;
/* defrag/reassembly buffers */
struct knet_host_defrag_buf defrag_buf[KNET_MAX_LINK];
char circular_buffer_defrag[KNET_CBUFFER_SIZE];
/* link stuff */
struct knet_link link[KNET_MAX_LINK];
uint8_t active_link_entries;
uint8_t active_links[KNET_MAX_LINK];
struct knet_host *next;
};
struct knet_sock {
int sockfd[2]; /* sockfd[0] will always be application facing
* and sockfd[1] internal if sockpair has been created by knet */
int is_socket; /* check if it's a socket for recvmmsg usage */
int is_created; /* knet created this socket and has to clean up on exit/del */
int in_use; /* set to 1 if it's use, 0 if free */
int has_error; /* set to 1 if there were errors reading from the sock
* and socket has been removed from epoll */
};
struct knet_fd_trackers {
uint8_t transport; /* transport type (UDP/SCTP...) */
uint8_t data_type; /* internal use for transport to define what data are associated
* with this fd */
void *data; /* pointer to the data */
void *access_list_match_entry_head; /* pointer to access list match_entry list head */
};
#define KNET_MAX_FDS KNET_MAX_HOST * KNET_MAX_LINK * 4
#define KNET_MAX_COMPRESS_METHODS UINT8_MAX
struct knet_handle_stats_extra {
uint64_t tx_crypt_pmtu_packets;
uint64_t tx_crypt_pmtu_reply_packets;
uint64_t tx_crypt_ping_packets;
uint64_t tx_crypt_pong_packets;
};
struct knet_handle {
knet_node_id_t host_id;
unsigned int enabled:1;
struct knet_sock sockfd[KNET_DATAFD_MAX + 1];
int logfd;
uint8_t log_levels[KNET_MAX_SUBSYSTEMS];
int hostsockfd[2];
int dstsockfd[2];
int send_to_links_epollfd;
int recv_from_links_epollfd;
int dst_link_handler_epollfd;
uint8_t use_access_lists; /* set to 0 for disable, 1 for enable */
unsigned int pmtud_interval;
unsigned int manual_mtu;
unsigned int data_mtu; /* contains the max data size that we can send onwire
* without frags */
struct knet_host *host_head;
struct knet_host *host_index[KNET_MAX_HOST];
knet_transport_t transports[KNET_MAX_TRANSPORTS+1];
struct knet_fd_trackers knet_transport_fd_tracker[KNET_MAX_FDS]; /* track status for each fd handled by transports */
struct knet_handle_stats stats;
struct knet_handle_stats_extra stats_extra;
pthread_mutex_t handle_stats_mutex; /* used to protect handle stats */
uint32_t reconnect_int;
knet_node_id_t host_ids[KNET_MAX_HOST];
size_t host_ids_entries;
struct knet_header *recv_from_sock_buf;
struct knet_header *send_to_links_buf[PCKT_FRAG_MAX];
struct knet_header *recv_from_links_buf[PCKT_RX_BUFS];
struct knet_header *pingbuf;
struct knet_header *pmtudbuf;
uint8_t threads_status[KNET_THREAD_MAX];
uint8_t threads_flush_queue[KNET_THREAD_MAX];
pthread_mutex_t threads_status_mutex;
pthread_t send_to_links_thread;
pthread_t recv_from_links_thread;
pthread_t heartbt_thread;
pthread_t dst_link_handler_thread;
pthread_t pmtud_link_handler_thread;
pthread_rwlock_t global_rwlock; /* global config lock */
pthread_mutex_t pmtud_mutex; /* pmtud mutex to handle conditional send/recv + timeout */
pthread_cond_t pmtud_cond; /* conditional for above */
pthread_mutex_t tx_mutex; /* used to protect knet_send_sync and TX thread */
pthread_mutex_t hb_mutex; /* used to protect heartbeat thread and seq_num broadcasting */
pthread_mutex_t backoff_mutex; /* used to protect dst_link->pong_timeout_adj */
pthread_mutex_t kmtu_mutex; /* used to protect kernel_mtu */
uint32_t kernel_mtu; /* contains the MTU detected by the kernel on a given link */
int pmtud_waiting;
int pmtud_running;
int pmtud_forcerun;
int pmtud_abort;
struct crypto_instance *crypto_instance;
size_t sec_block_size;
size_t sec_hash_size;
size_t sec_salt_size;
unsigned char *send_to_links_buf_crypt[PCKT_FRAG_MAX];
unsigned char *recv_from_links_buf_crypt;
unsigned char *recv_from_links_buf_decrypt;
unsigned char *pingbuf_crypt;
unsigned char *pmtudbuf_crypt;
int compress_model;
int compress_level;
size_t compress_threshold;
void *compress_int_data[KNET_MAX_COMPRESS_METHODS]; /* for compress method private data */
unsigned char *recv_from_links_buf_decompress;
unsigned char *send_to_links_buf_compress;
seq_num_t tx_seq_num;
pthread_mutex_t tx_seq_num_mutex;
uint8_t has_loop_link;
uint8_t loop_link;
void *dst_host_filter_fn_private_data;
int (*dst_host_filter_fn) (
void *private_data,
const unsigned char *outdata,
ssize_t outdata_len,
uint8_t tx_rx,
knet_node_id_t this_host_id,
knet_node_id_t src_node_id,
int8_t *channel,
knet_node_id_t *dst_host_ids,
size_t *dst_host_ids_entries);
void *pmtud_notify_fn_private_data;
void (*pmtud_notify_fn) (
void *private_data,
unsigned int data_mtu);
void *host_status_change_notify_fn_private_data;
void (*host_status_change_notify_fn) (
void *private_data,
knet_node_id_t host_id,
uint8_t reachable,
uint8_t remote,
uint8_t external);
void *sock_notify_fn_private_data;
void (*sock_notify_fn) (
void *private_data,
int datafd,
int8_t channel,
uint8_t tx_rx,
int error,
int errorno);
int fini_in_progress;
uint64_t flags;
};
extern pthread_rwlock_t shlib_rwlock; /* global shared lib load lock */
/*
* NOTE: every single operation must be implementend
* for every protocol.
*/
/*
* for now knet supports only IP protocols (udp/sctp)
* in future there might be others like ARP
* or TIPC.
* keep this around as transport information
* to use for access lists and other operations
*/
#define TRANSPORT_PROTO_LOOPBACK 0
#define TRANSPORT_PROTO_IP_PROTO 1
/*
* some transports like SCTP can filter incoming
* connections before knet has to process
* any packets.
* GENERIC_ACL -> packet has to be read and filterted
* PROTO_ACL -> transport provides filtering at lower levels
* and packet does not need to be processed
*/
typedef enum {
USE_NO_ACL,
USE_GENERIC_ACL,
USE_PROTO_ACL
} transport_acl;
/*
* make it easier to map values in transports.c
*/
#define TRANSPORT_PROTO_NOT_CONNECTION_ORIENTED 0
#define TRANSPORT_PROTO_IS_CONNECTION_ORIENTED 1
typedef struct knet_transport_ops {
/*
* transport generic information
*/
const char *transport_name;
const uint8_t transport_id;
const uint8_t built_in;
uint8_t transport_protocol;
transport_acl transport_acl_type;
/*
* connection oriented protocols like SCTP
* don´t need dst_addr in sendto calls and
* on some OSes are considered EINVAL.
*/
uint8_t transport_is_connection_oriented;
uint32_t transport_mtu_overhead;
/*
* transport init must allocate the new transport
* and perform all internal initializations
* (threads, lists, etc).
*/
int (*transport_init)(knet_handle_t knet_h);
/*
* transport free must releases _all_ resources
* allocated by tranport_init
*/
int (*transport_free)(knet_handle_t knet_h);
/*
* link operations should take care of all the
* sockets and epoll management for a given link/transport set
* transport_link_disable should return err = -1 and errno = EBUSY
* if listener is still in use, and any other errno in case
* the link cannot be disabled.
*
* set_config/clear_config are invoked in global write lock context
*/
int (*transport_link_set_config)(knet_handle_t knet_h, struct knet_link *link);
int (*transport_link_clear_config)(knet_handle_t knet_h, struct knet_link *link);
/*
* transport callback for incoming dynamic connections
* this is called in global read lock context
*/
int (*transport_link_dyn_connect)(knet_handle_t knet_h, int sockfd, struct knet_link *link);
/*
* return the fd to use for access lists
*/
int (*transport_link_get_acl_fd)(knet_handle_t knet_h, struct knet_link *link);
/*
* per transport error handling of recvmmsg
* (see _handle_recv_from_links comments for details)
*/
/*
* transport_rx_sock_error is invoked when recvmmsg returns <= 0
*
* transport_rx_sock_error is invoked with both global_rdlock
*/
int (*transport_rx_sock_error)(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
/*
* transport_tx_sock_error is invoked with global_rwlock and
* it's invoked when sendto or sendmmsg returns =< 0
*
* it should return:
* -1 on internal error
* 0 ignore error and continue
* 1 retry
* any sleep or wait action should happen inside the transport code
*/
int (*transport_tx_sock_error)(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
/*
* this function is called on _every_ received packet
* to verify if the packet is data or internal protocol error handling
*
* it should return:
* -1 on error
* 0 packet is not data and we should continue the packet process loop
* 1 packet is not data and we should STOP the packet process loop
* 2 packet is data and should be parsed as such
*
* transport_rx_is_data is invoked with both global_rwlock
* and fd_tracker read lock (from RX thread)
*/
int (*transport_rx_is_data)(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg);
-} knet_transport_ops_t;
-socklen_t sockaddr_len(const struct sockaddr_storage *ss);
+/*
+ * this function is called by links.c when a link down event is recorded
+ * to notify the transport that packets are not going through, and give
+ * transport the opportunity to take actions.
+ */
+ int (*transport_link_is_down)(knet_handle_t knet_h, struct knet_link *link);
+} knet_transport_ops_t;
struct pretty_names {
const char *name;
uint8_t val;
};
-/**
- * This is a kernel style list implementation.
- *
- * @author Steven Dake <sdake@redhat.com>
- */
-
-struct knet_list_head {
- struct knet_list_head *next;
- struct knet_list_head *prev;
-};
-
-/**
- * @def KNET_LIST_DECLARE()
- * Declare and initialize a list head.
- */
-#define KNET_LIST_DECLARE(name) \
- struct knet_list_head name = { &(name), &(name) }
-
-#define KNET_INIT_LIST_HEAD(ptr) do { \
- (ptr)->next = (ptr); (ptr)->prev = (ptr); \
-} while (0)
-
-/**
- * Initialize the list entry.
- *
- * Points next and prev pointers to head.
- * @param head pointer to the list head
- */
-static inline void knet_list_init(struct knet_list_head *head)
-{
- head->next = head;
- head->prev = head;
-}
-
-/**
- * Add this element to the list.
- *
- * @param element the new element to insert.
- * @param head pointer to the list head
- */
-static inline void knet_list_add(struct knet_list_head *element,
- struct knet_list_head *head)
-{
- head->next->prev = element;
- element->next = head->next;
- element->prev = head;
- head->next = element;
-}
-
-/**
- * Add to the list (but at the end of the list).
- *
- * @param element pointer to the element to add
- * @param head pointer to the list head
- * @see knet_list_add()
- */
-static inline void knet_list_add_tail(struct knet_list_head *element,
- struct knet_list_head *head)
-{
- head->prev->next = element;
- element->next = head;
- element->prev = head->prev;
- head->prev = element;
-}
-
-/**
- * Delete an entry from the list.
- *
- * @param _remove the list item to remove
- */
-static inline void knet_list_del(struct knet_list_head *_remove)
-{
- _remove->next->prev = _remove->prev;
- _remove->prev->next = _remove->next;
-}
-
-/**
- * Replace old entry by new one
- * @param old: the element to be replaced
- * @param new: the new element to insert
- */
-static inline void knet_list_replace(struct knet_list_head *old,
- struct knet_list_head *new)
-{
- new->next = old->next;
- new->next->prev = new;
- new->prev = old->prev;
- new->prev->next = new;
-}
-
-/**
- * Tests whether list is the last entry in list head
- * @param list: the entry to test
- * @param head: the head of the list
- * @return boolean true/false
- */
-static inline int knet_list_is_last(const struct knet_list_head *list,
- const struct knet_list_head *head)
-{
- return list->next == head;
-}
-
-/**
- * A quick test to see if the list is empty (pointing to it's self).
- * @param head pointer to the list head
- * @return boolean true/false
- */
-static inline int32_t knet_list_empty(const struct knet_list_head *head)
-{
- return head->next == head;
-}
-
-
-/**
- * Get the struct for this entry
- * @param ptr: the &struct list_head pointer.
- * @param type: the type of the struct this is embedded in.
- * @param member: the name of the list_struct within the struct.
- */
-#define knet_list_entry(ptr,type,member)\
- ((type *)((char *)(ptr)-(char*)(&((type *)0)->member)))
-
-/**
- * Get the first element from a list
- * @param ptr: the &struct list_head pointer.
- * @param type: the type of the struct this is embedded in.
- * @param member: the name of the list_struct within the struct.
- */
-#define knet_list_first_entry(ptr, type, member) \
- knet_list_entry((ptr)->next, type, member)
-
-/**
- * Iterate over a list
- * @param pos: the &struct list_head to use as a loop counter.
- * @param head: the head for your list.
- */
-#define knet_list_for_each(pos, head) \
- for (pos = (head)->next; pos != (head); pos = pos->next)
-
-/**
- * Iterate over a list backwards
- * @param pos: the &struct list_head to use as a loop counter.
- * @param head: the head for your list.
- */
-#define knet_list_for_each_reverse(pos, head) \
- for (pos = (head)->prev; pos != (head); pos = pos->prev)
-
-/**
- * Iterate over a list safe against removal of list entry
- * @param pos: the &struct list_head to use as a loop counter.
- * @param n: another &struct list_head to use as temporary storage
- * @param head: the head for your list.
- */
-#define knet_list_for_each_safe(pos, n, head) \
- for (pos = (head)->next, n = pos->next; pos != (head); \
- pos = n, n = pos->next)
-
-/**
- * Iterate over list of given type
- * @param pos: the type * to use as a loop counter.
- * @param head: the head for your list.
- * @param member: the name of the list_struct within the struct.
- */
-#define knet_list_for_each_entry(pos, head, member) \
- for (pos = knet_list_entry((head)->next, typeof(*pos), member); \
- &pos->member != (head); \
- pos = knet_list_entry(pos->member.next, typeof(*pos), member))
-
-
#endif
diff --git a/libknet/links.c b/libknet/links.c
index d08065bd..a127144a 100644
--- a/libknet/links.c
+++ b/libknet/links.c
@@ -1,1551 +1,1556 @@
/*
* Copyright (C) 2012-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
* Federico Simoncelli <fsimon@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <errno.h>
#include <netdb.h>
#include <string.h>
#include <pthread.h>
#include "internals.h"
#include "logging.h"
#include "links.h"
#include "transports.h"
#include "host.h"
#include "threads_common.h"
#include "links_acl.h"
int _link_updown(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
unsigned int enabled, unsigned int connected, unsigned int lock_stats)
{
struct knet_host *host = knet_h->host_index[host_id];
struct knet_link *link = &host->link[link_id];
int savederrno = 0;
if ((link->status.enabled == enabled) &&
(link->status.connected == connected))
return 0;
link->status.enabled = enabled;
link->status.connected = connected;
_host_dstcache_update_async(knet_h, knet_h->host_index[host_id]);
if ((link->status.dynconnected) &&
- (!link->status.connected))
+ (!link->status.connected)) {
link->status.dynconnected = 0;
+ }
+
+ if (!connected) {
+ transport_link_is_down(knet_h, link);
+ }
if (lock_stats) {
savederrno = pthread_mutex_lock(&link->link_stats_mutex);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get stats mutex lock for host %u link %u: %s",
host_id, link_id, strerror(savederrno));
errno = savederrno;
return -1;
}
}
if (connected) {
time(&link->status.stats.last_up_times[link->status.stats.last_up_time_index]);
link->status.stats.up_count++;
if (++link->status.stats.last_up_time_index >= MAX_LINK_EVENTS) {
link->status.stats.last_up_time_index = 0;
}
} else {
time(&link->status.stats.last_down_times[link->status.stats.last_down_time_index]);
link->status.stats.down_count++;
if (++link->status.stats.last_down_time_index >= MAX_LINK_EVENTS) {
link->status.stats.last_down_time_index = 0;
}
}
if (lock_stats) {
pthread_mutex_unlock(&link->link_stats_mutex);
}
return 0;
}
void _link_clear_stats(knet_handle_t knet_h)
{
struct knet_host *host;
struct knet_link *link;
uint32_t host_id;
uint8_t link_id;
for (host_id = 0; host_id < KNET_MAX_HOST; host_id++) {
host = knet_h->host_index[host_id];
if (!host) {
continue;
}
for (link_id = 0; link_id < KNET_MAX_LINK; link_id++) {
link = &host->link[link_id];
memset(&link->status.stats, 0, sizeof(struct knet_link_stats));
}
}
}
int knet_link_set_config(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t transport,
struct sockaddr_storage *src_addr,
struct sockaddr_storage *dst_addr,
uint64_t flags)
{
int savederrno = 0, err = 0, i;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!src_addr) {
errno = EINVAL;
return -1;
}
if (dst_addr && (src_addr->ss_family != dst_addr->ss_family)) {
log_err(knet_h, KNET_SUB_LINK, "Source address family does not match destination address family");
errno = EINVAL;
return -1;
}
if (transport >= KNET_MAX_TRANSPORTS) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
if (transport == KNET_TRANSPORT_LOOPBACK && knet_h->host_id != host_id) {
log_err(knet_h, KNET_SUB_LINK, "Cannot create loopback link to remote node");
err = -1;
savederrno = EINVAL;
goto exit_unlock;
}
if (knet_h->host_id == host_id && knet_h->has_loop_link) {
log_err(knet_h, KNET_SUB_LINK, "Cannot create more than 1 link when loopback is active");
err = -1;
savederrno = EINVAL;
goto exit_unlock;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
if (transport == KNET_TRANSPORT_LOOPBACK && knet_h->host_id == host_id) {
for (i=0; i<KNET_MAX_LINK; i++) {
if (host->link[i].configured) {
log_err(knet_h, KNET_SUB_LINK, "Cannot add loopback link when other links are already configured.");
err = -1;
savederrno = EINVAL;
goto exit_unlock;
}
}
}
link = &host->link[link_id];
if (link->configured != 0) {
err =-1;
savederrno = EBUSY;
log_err(knet_h, KNET_SUB_LINK, "Host %u link %u is currently configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->status.enabled != 0) {
err =-1;
savederrno = EBUSY;
log_err(knet_h, KNET_SUB_LINK, "Host %u link %u is currently in use: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
memmove(&link->src_addr, src_addr, sizeof(struct sockaddr_storage));
err = knet_addrtostr(src_addr, sizeof(struct sockaddr_storage),
link->status.src_ipaddr, KNET_MAX_HOST_LEN,
link->status.src_port, KNET_MAX_PORT_LEN);
if (err) {
if (err == EAI_SYSTEM) {
savederrno = errno;
log_warn(knet_h, KNET_SUB_LINK,
"Unable to resolve host: %u link: %u source addr/port: %s",
host_id, link_id, strerror(savederrno));
} else {
savederrno = EINVAL;
log_warn(knet_h, KNET_SUB_LINK,
"Unable to resolve host: %u link: %u source addr/port: %s",
host_id, link_id, gai_strerror(err));
}
err = -1;
goto exit_unlock;
}
if (!dst_addr) {
link->dynamic = KNET_LINK_DYNIP;
} else {
link->dynamic = KNET_LINK_STATIC;
memmove(&link->dst_addr, dst_addr, sizeof(struct sockaddr_storage));
err = knet_addrtostr(dst_addr, sizeof(struct sockaddr_storage),
link->status.dst_ipaddr, KNET_MAX_HOST_LEN,
link->status.dst_port, KNET_MAX_PORT_LEN);
if (err) {
if (err == EAI_SYSTEM) {
savederrno = errno;
log_warn(knet_h, KNET_SUB_LINK,
"Unable to resolve host: %u link: %u destination addr/port: %s",
host_id, link_id, strerror(savederrno));
} else {
savederrno = EINVAL;
log_warn(knet_h, KNET_SUB_LINK,
"Unable to resolve host: %u link: %u destination addr/port: %s",
host_id, link_id, gai_strerror(err));
}
err = -1;
goto exit_unlock;
}
}
link->pmtud_crypto_timeout_multiplier = KNET_LINK_PMTUD_CRYPTO_TIMEOUT_MULTIPLIER_MIN;
link->pong_count = KNET_LINK_DEFAULT_PONG_COUNT;
link->has_valid_mtu = 0;
link->ping_interval = KNET_LINK_DEFAULT_PING_INTERVAL * 1000; /* microseconds */
link->pong_timeout = KNET_LINK_DEFAULT_PING_TIMEOUT * 1000; /* microseconds */
link->pong_timeout_backoff = KNET_LINK_PONG_TIMEOUT_BACKOFF;
link->pong_timeout_adj = link->pong_timeout * link->pong_timeout_backoff; /* microseconds */
link->latency_max_samples = KNET_LINK_DEFAULT_PING_PRECISION;
link->latency_cur_samples = 0;
link->flags = flags;
savederrno = pthread_mutex_init(&link->link_stats_mutex, NULL);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to initialize link stats mutex: %s", strerror(savederrno));
err = -1;
goto exit_unlock;
}
if (transport_link_set_config(knet_h, link, transport) < 0) {
savederrno = errno;
err = -1;
goto exit_unlock;
}
/*
* we can only configure default access lists if we know both endpoints
* and the protocol uses GENERIC_ACL, otherwise the protocol has
* to setup their own access lists above in transport_link_set_config.
*/
if ((transport_get_acl_type(knet_h, transport) == USE_GENERIC_ACL) &&
(link->dynamic == KNET_LINK_STATIC)) {
log_debug(knet_h, KNET_SUB_LINK, "Configuring default access lists for host: %u link: %u socket: %d",
host_id, link_id, link->outsock);
if ((check_add(knet_h, link->outsock, transport, -1,
&link->dst_addr, &link->dst_addr,
CHECK_TYPE_ADDRESS, CHECK_ACCEPT) < 0) && (errno != EEXIST)) {
log_warn(knet_h, KNET_SUB_LINK, "Failed to configure default access lists for host: %u link: %u", host_id, link_id);
savederrno = errno;
err = -1;
goto exit_unlock;
}
}
link->configured = 1;
log_debug(knet_h, KNET_SUB_LINK, "host: %u link: %u is configured",
host_id, link_id);
if (transport == KNET_TRANSPORT_LOOPBACK) {
knet_h->has_loop_link = 1;
knet_h->loop_link = link_id;
host->status.reachable = 1;
link->status.mtu = KNET_PMTUD_SIZE_V6;
} else {
/*
* calculate the minimum MTU that is safe to use,
* based on RFCs and that each network device should
* be able to support without any troubles
*/
if (link->dynamic == KNET_LINK_STATIC) {
/*
* with static link we can be more precise than using
* the generic calc_min_mtu()
*/
switch (link->dst_addr.ss_family) {
case AF_INET6:
link->status.mtu = calc_max_data_outlen(knet_h, KNET_PMTUD_MIN_MTU_V6 - (KNET_PMTUD_OVERHEAD_V6 + link->proto_overhead));
break;
case AF_INET:
link->status.mtu = calc_max_data_outlen(knet_h, KNET_PMTUD_MIN_MTU_V4 - (KNET_PMTUD_OVERHEAD_V4 + link->proto_overhead));
break;
}
} else {
/*
* for dynamic links we start with the minimum MTU
* possible and PMTUd will kick in immediately
* after connection status is 1
*/
link->status.mtu = calc_min_mtu(knet_h);
}
link->has_valid_mtu = 1;
}
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_config(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t *transport,
struct sockaddr_storage *src_addr,
struct sockaddr_storage *dst_addr,
uint8_t *dynamic,
uint64_t *flags)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!src_addr) {
errno = EINVAL;
return -1;
}
if (!dynamic) {
errno = EINVAL;
return -1;
}
if (!transport) {
errno = EINVAL;
return -1;
}
if (!flags) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if ((link->dynamic == KNET_LINK_STATIC) && (!dst_addr)) {
savederrno = EINVAL;
err = -1;
goto exit_unlock;
}
memmove(src_addr, &link->src_addr, sizeof(struct sockaddr_storage));
*transport = link->transport;
*flags = link->flags;
if (link->dynamic == KNET_LINK_STATIC) {
*dynamic = 0;
memmove(dst_addr, &link->dst_addr, sizeof(struct sockaddr_storage));
} else {
*dynamic = 1;
}
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_clear_config(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
int sock;
uint8_t transport;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (link->configured != 1) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->status.enabled != 0) {
err = -1;
savederrno = EBUSY;
log_err(knet_h, KNET_SUB_LINK, "Host %u link %u is currently in use: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
/*
* remove well known access lists here.
* After the transport has done clearing the config,
* then we can remove any leftover access lists if the link
* is no longer in use.
*/
if ((transport_get_acl_type(knet_h, link->transport) == USE_GENERIC_ACL) &&
(link->dynamic == KNET_LINK_STATIC)) {
if ((check_rm(knet_h, link->outsock, link->transport,
&link->dst_addr, &link->dst_addr,
CHECK_TYPE_ADDRESS, CHECK_ACCEPT) < 0) && (errno != ENOENT)) {
err = -1;
savederrno = errno;
log_err(knet_h, KNET_SUB_LINK, "Host %u link %u: unable to remove default access list",
host_id, link_id);
goto exit_unlock;
}
}
/*
* cache it for later as we don't know if the transport
* will clear link info during clear_config.
*/
sock = link->outsock;
transport = link->transport;
if ((transport_link_clear_config(knet_h, link) < 0) &&
(errno != EBUSY)) {
savederrno = errno;
err = -1;
goto exit_unlock;
}
/*
* remove any other access lists when the socket is no
* longer in use by the transport.
*/
if ((transport_get_acl_type(knet_h, link->transport) == USE_GENERIC_ACL) &&
(knet_h->knet_transport_fd_tracker[sock].transport == KNET_MAX_TRANSPORTS)) {
check_rmall(knet_h, sock, transport);
}
pthread_mutex_destroy(&link->link_stats_mutex);
memset(link, 0, sizeof(struct knet_link));
link->link_id = link_id;
if (knet_h->has_loop_link && host_id == knet_h->host_id && link_id == knet_h->loop_link) {
knet_h->has_loop_link = 0;
if (host->active_link_entries == 0) {
host->status.reachable = 0;
}
}
log_debug(knet_h, KNET_SUB_LINK, "host: %u link: %u config has been wiped",
host_id, link_id);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_set_enable(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
unsigned int enabled)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (enabled > 1) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->status.enabled == enabled) {
err = 0;
goto exit_unlock;
}
err = _link_updown(knet_h, host_id, link_id, enabled, link->status.connected, 0);
savederrno = errno;
if (enabled) {
goto exit_unlock;
}
log_debug(knet_h, KNET_SUB_LINK, "host: %u link: %u is disabled",
host_id, link_id);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_enable(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
unsigned int *enabled)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!enabled) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
*enabled = link->status.enabled;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_set_pong_count(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t pong_count)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (pong_count < 1) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
link->pong_count = pong_count;
log_debug(knet_h, KNET_SUB_LINK,
"host: %u link: %u pong count update: %u",
host_id, link_id, link->pong_count);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_pong_count(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t *pong_count)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!pong_count) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
*pong_count = link->pong_count;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_set_ping_timers(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
time_t interval, time_t timeout, unsigned int precision)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!interval) {
errno = EINVAL;
return -1;
}
if (!timeout) {
errno = ENOSYS;
return -1;
}
if (!precision) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
link->ping_interval = interval * 1000; /* microseconds */
link->pong_timeout = timeout * 1000; /* microseconds */
link->latency_max_samples = precision;
log_debug(knet_h, KNET_SUB_LINK,
"host: %u link: %u timeout update - interval: %llu timeout: %llu precision: %u",
host_id, link_id, link->ping_interval, link->pong_timeout, precision);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_ping_timers(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
time_t *interval, time_t *timeout, unsigned int *precision)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!interval) {
errno = EINVAL;
return -1;
}
if (!timeout) {
errno = EINVAL;
return -1;
}
if (!precision) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
*interval = link->ping_interval / 1000; /* microseconds */
*timeout = link->pong_timeout / 1000;
*precision = link->latency_max_samples;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_set_priority(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t priority)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
uint8_t old_priority;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
old_priority = link->priority;
if (link->priority == priority) {
err = 0;
goto exit_unlock;
}
link->priority = priority;
if (_host_dstcache_update_sync(knet_h, host)) {
savederrno = errno;
log_debug(knet_h, KNET_SUB_LINK,
"Unable to update link priority (host: %u link: %u priority: %u): %s",
host_id, link_id, link->priority, strerror(savederrno));
link->priority = old_priority;
err = -1;
goto exit_unlock;
}
log_debug(knet_h, KNET_SUB_LINK,
"host: %u link: %u priority set to: %u",
host_id, link_id, link->priority);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_priority(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t *priority)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!priority) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
*priority = link->priority;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_link_list(knet_handle_t knet_h, knet_node_id_t host_id,
uint8_t *link_ids, size_t *link_ids_entries)
{
int savederrno = 0, err = 0, i, count = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!link_ids) {
errno = EINVAL;
return -1;
}
if (!link_ids_entries) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
for (i = 0; i < KNET_MAX_LINK; i++) {
link = &host->link[i];
if (!link->configured) {
continue;
}
link_ids[count] = i;
count++;
}
*link_ids_entries = count;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_get_status(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
struct knet_link_status *status, size_t struct_size)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
if (!status) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
savederrno = pthread_mutex_lock(&link->link_stats_mutex);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get stats mutex lock for host %u link %u: %s",
host_id, link_id, strerror(savederrno));
err = -1;
goto exit_unlock;
}
memmove(status, &link->status, struct_size);
pthread_mutex_unlock(&link->link_stats_mutex);
/* Calculate totals - no point in doing this on-the-fly */
status->stats.rx_total_packets =
status->stats.rx_data_packets +
status->stats.rx_ping_packets +
status->stats.rx_pong_packets +
status->stats.rx_pmtu_packets;
status->stats.tx_total_packets =
status->stats.tx_data_packets +
status->stats.tx_ping_packets +
status->stats.tx_pong_packets +
status->stats.tx_pmtu_packets;
status->stats.rx_total_bytes =
status->stats.rx_data_bytes +
status->stats.rx_ping_bytes +
status->stats.rx_pong_bytes +
status->stats.rx_pmtu_bytes;
status->stats.tx_total_bytes =
status->stats.tx_data_bytes +
status->stats.tx_ping_bytes +
status->stats.tx_pong_bytes +
status->stats.tx_pmtu_bytes;
status->stats.tx_total_errors =
status->stats.tx_data_errors +
status->stats.tx_ping_errors +
status->stats.tx_pong_errors +
status->stats.tx_pmtu_errors;
status->stats.tx_total_retries =
status->stats.tx_data_retries +
status->stats.tx_ping_retries +
status->stats.tx_pong_retries +
status->stats.tx_pmtu_retries;
/* Tell the caller our full size in case they have an old version */
status->size = sizeof(struct knet_link_status);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = err ? savederrno : 0;
return err;
}
int knet_link_add_acl(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
struct sockaddr_storage *ss1,
struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!ss1) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) &&
(type != CHECK_TYPE_MASK) &&
(type != CHECK_TYPE_RANGE)) {
errno = EINVAL;
return -1;
}
if ((acceptreject != CHECK_ACCEPT) &&
(acceptreject != CHECK_REJECT)) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) && (!ss2)) {
errno = EINVAL;
return -1;
}
if ((type == CHECK_TYPE_RANGE) &&
(ss1->ss_family != ss2->ss_family)) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->dynamic != KNET_LINK_DYNIP) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is a point to point connection: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
err = check_add(knet_h, transport_link_get_acl_fd(knet_h, link), link->transport, -1,
ss1, ss2, type, acceptreject);
savederrno = errno;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = savederrno;
return err;
}
int knet_link_insert_acl(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
int index,
struct sockaddr_storage *ss1,
struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!ss1) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) &&
(type != CHECK_TYPE_MASK) &&
(type != CHECK_TYPE_RANGE)) {
errno = EINVAL;
return -1;
}
if ((acceptreject != CHECK_ACCEPT) &&
(acceptreject != CHECK_REJECT)) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) && (!ss2)) {
errno = EINVAL;
return -1;
}
if ((type == CHECK_TYPE_RANGE) &&
(ss1->ss_family != ss2->ss_family)) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->dynamic != KNET_LINK_DYNIP) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is a point to point connection: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
err = check_add(knet_h, transport_link_get_acl_fd(knet_h, link), link->transport, index,
ss1, ss2, type, acceptreject);
savederrno = errno;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = savederrno;
return err;
}
int knet_link_rm_acl(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
struct sockaddr_storage *ss1,
struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!ss1) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) &&
(type != CHECK_TYPE_MASK) &&
(type != CHECK_TYPE_RANGE)) {
errno = EINVAL;
return -1;
}
if ((acceptreject != CHECK_ACCEPT) &&
(acceptreject != CHECK_REJECT)) {
errno = EINVAL;
return -1;
}
if ((type != CHECK_TYPE_ADDRESS) && (!ss2)) {
errno = EINVAL;
return -1;
}
if ((type == CHECK_TYPE_RANGE) &&
(ss1->ss_family != ss2->ss_family)) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->dynamic != KNET_LINK_DYNIP) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is a point to point connection: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
err = check_rm(knet_h, transport_link_get_acl_fd(knet_h, link), link->transport,
ss1, ss2, type, acceptreject);
savederrno = errno;
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = savederrno;
return err;
}
int knet_link_clear_acl(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id)
{
int savederrno = 0, err = 0;
struct knet_host *host;
struct knet_link *link;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (link_id >= KNET_MAX_LINK) {
errno = EINVAL;
return -1;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_LINK, "Unable to get write lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
host = knet_h->host_index[host_id];
if (!host) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "Unable to find host %u: %s",
host_id, strerror(savederrno));
goto exit_unlock;
}
link = &host->link[link_id];
if (!link->configured) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is not configured: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
if (link->dynamic != KNET_LINK_DYNIP) {
err = -1;
savederrno = EINVAL;
log_err(knet_h, KNET_SUB_LINK, "host %u link %u is a point to point connection: %s",
host_id, link_id, strerror(savederrno));
goto exit_unlock;
}
check_rmall(knet_h, transport_link_get_acl_fd(knet_h, link), link->transport);
exit_unlock:
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = savederrno;
return err;
}
diff --git a/libknet/links_acl_ip.c b/libknet/links_acl_ip.c
index b77eaf43..0f269ef1 100644
--- a/libknet/links_acl_ip.c
+++ b/libknet/links_acl_ip.c
@@ -1,310 +1,310 @@
/*
* Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
*
* Author: Christine Caulfield <ccaulfie@redhat.com>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#include "internals.h"
#include "logging.h"
#include "transports.h"
#include "links_acl.h"
#include "links_acl_ip.h"
struct ip_acl_match_entry {
check_type_t type;
check_acceptreject_t acceptreject;
struct sockaddr_storage addr1; /* Actual IP address, mask top or low IP */
struct sockaddr_storage addr2; /* high IP address or address bitmask */
struct ip_acl_match_entry *next;
};
/*
* s6_addr32 is not defined in BSD userland, only kernel.
* definition is the same as linux and it works fine for
* what we need.
*/
#ifndef s6_addr32
#define s6_addr32 __u6_addr.__u6_addr32
#endif
/*
* IPv4 See if the address we have matches the current match entry
*/
static int ip_matches_v4(struct sockaddr_storage *checkip, struct ip_acl_match_entry *match_entry)
{
struct sockaddr_in *ip_to_check;
struct sockaddr_in *match1;
struct sockaddr_in *match2;
ip_to_check = (struct sockaddr_in *)checkip;
match1 = (struct sockaddr_in *)&match_entry->addr1;
match2 = (struct sockaddr_in *)&match_entry->addr2;
switch(match_entry->type) {
case CHECK_TYPE_ADDRESS:
if (ip_to_check->sin_addr.s_addr == match1->sin_addr.s_addr)
return 1;
break;
case CHECK_TYPE_MASK:
if ((ip_to_check->sin_addr.s_addr & match2->sin_addr.s_addr) ==
match1->sin_addr.s_addr)
return 1;
break;
case CHECK_TYPE_RANGE:
if ((ntohl(ip_to_check->sin_addr.s_addr) >= ntohl(match1->sin_addr.s_addr)) &&
(ntohl(ip_to_check->sin_addr.s_addr) <= ntohl(match2->sin_addr.s_addr)))
return 1;
break;
}
return 0;
}
/*
* Compare two IPv6 addresses
*/
static int ip6addr_cmp(struct in6_addr *a, struct in6_addr *b)
{
uint64_t a_high, a_low;
uint64_t b_high, b_low;
a_high = ((uint64_t)htonl(a->s6_addr32[0]) << 32) | (uint64_t)htonl(a->s6_addr32[1]);
a_low = ((uint64_t)htonl(a->s6_addr32[2]) << 32) | (uint64_t)htonl(a->s6_addr32[3]);
b_high = ((uint64_t)htonl(b->s6_addr32[0]) << 32) | (uint64_t)htonl(b->s6_addr32[1]);
b_low = ((uint64_t)htonl(b->s6_addr32[2]) << 32) | (uint64_t)htonl(b->s6_addr32[3]);
if (a_high > b_high)
return 1;
if (a_high < b_high)
return -1;
if (a_low > b_low)
return 1;
if (a_low < b_low)
return -1;
return 0;
}
/*
* IPv6 See if the address we have matches the current match entry
*/
static int ip_matches_v6(struct sockaddr_storage *checkip, struct ip_acl_match_entry *match_entry)
{
struct sockaddr_in6 *ip_to_check;
struct sockaddr_in6 *match1;
struct sockaddr_in6 *match2;
int i;
ip_to_check = (struct sockaddr_in6 *)checkip;
match1 = (struct sockaddr_in6 *)&match_entry->addr1;
match2 = (struct sockaddr_in6 *)&match_entry->addr2;
switch(match_entry->type) {
case CHECK_TYPE_ADDRESS:
if (!memcmp(ip_to_check->sin6_addr.s6_addr32, match1->sin6_addr.s6_addr32, sizeof(struct in6_addr)))
return 1;
break;
case CHECK_TYPE_MASK:
/*
* Note that this little loop will quit early if there is a non-match so the
* comparison might look backwards compared to the IPv4 one
*/
for (i=sizeof(struct in6_addr)/4-1; i>=0; i--) {
if ((ip_to_check->sin6_addr.s6_addr32[i] & match2->sin6_addr.s6_addr32[i]) !=
match1->sin6_addr.s6_addr32[i])
return 0;
}
return 1;
case CHECK_TYPE_RANGE:
if ((ip6addr_cmp(&ip_to_check->sin6_addr, &match1->sin6_addr) >= 0) &&
(ip6addr_cmp(&ip_to_check->sin6_addr, &match2->sin6_addr) <= 0))
return 1;
break;
}
return 0;
}
int ipcheck_validate(void *fd_tracker_match_entry_head, struct sockaddr_storage *checkip)
{
struct ip_acl_match_entry **match_entry_head = (struct ip_acl_match_entry **)fd_tracker_match_entry_head;
struct ip_acl_match_entry *match_entry = *match_entry_head;
int (*match_fn)(struct sockaddr_storage *checkip, struct ip_acl_match_entry *match_entry);
- if (checkip->ss_family == AF_INET){
+ if (checkip->ss_family == AF_INET) {
match_fn = ip_matches_v4;
} else {
match_fn = ip_matches_v6;
}
while (match_entry) {
if (match_fn(checkip, match_entry)) {
if (match_entry->acceptreject == CHECK_ACCEPT)
return 1;
else
return 0;
}
match_entry = match_entry->next;
}
return 0; /* Default reject */
}
/*
* Routines to manuipulate access lists
*/
void ipcheck_rmall(void *fd_tracker_match_entry_head)
{
struct ip_acl_match_entry **match_entry_head = (struct ip_acl_match_entry **)fd_tracker_match_entry_head;
struct ip_acl_match_entry *next_match_entry;
struct ip_acl_match_entry *match_entry = *match_entry_head;
while (match_entry) {
next_match_entry = match_entry->next;
free(match_entry);
match_entry = next_match_entry;
}
*match_entry_head = NULL;
}
static struct ip_acl_match_entry *ipcheck_findmatch(struct ip_acl_match_entry **match_entry_head,
struct sockaddr_storage *ss1, struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
struct ip_acl_match_entry *match_entry = *match_entry_head;
while (match_entry) {
if ((!memcmp(&match_entry->addr1, ss1, sizeof(struct sockaddr_storage))) &&
(!memcmp(&match_entry->addr2, ss2, sizeof(struct sockaddr_storage))) &&
(match_entry->type == type) &&
(match_entry->acceptreject == acceptreject)) {
return match_entry;
}
match_entry = match_entry->next;
}
return NULL;
}
int ipcheck_rmip(void *fd_tracker_match_entry_head,
struct sockaddr_storage *ss1, struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
struct ip_acl_match_entry **match_entry_head = (struct ip_acl_match_entry **)fd_tracker_match_entry_head;
struct ip_acl_match_entry *next_match_entry = NULL;
struct ip_acl_match_entry *rm_match_entry;
struct ip_acl_match_entry *match_entry = *match_entry_head;
rm_match_entry = ipcheck_findmatch(match_entry_head, ss1, ss2, type, acceptreject);
if (!rm_match_entry) {
errno = ENOENT;
return -1;
}
while (match_entry) {
next_match_entry = match_entry->next;
/*
* we are removing the list head, be careful
*/
if (rm_match_entry == match_entry) {
*match_entry_head = next_match_entry;
free(match_entry);
break;
}
/*
* the next one is the one we need to remove
*/
if (rm_match_entry == next_match_entry) {
match_entry->next = next_match_entry->next;
free(next_match_entry);
break;
}
match_entry = next_match_entry;
}
return 0;
}
int ipcheck_addip(void *fd_tracker_match_entry_head, int index,
struct sockaddr_storage *ss1, struct sockaddr_storage *ss2,
check_type_t type, check_acceptreject_t acceptreject)
{
struct ip_acl_match_entry **match_entry_head = (struct ip_acl_match_entry **)fd_tracker_match_entry_head;
struct ip_acl_match_entry *new_match_entry;
struct ip_acl_match_entry *match_entry = *match_entry_head;
int i = 0;
if (ipcheck_findmatch(match_entry_head, ss1, ss2, type, acceptreject) != NULL) {
errno = EEXIST;
return -1;
}
new_match_entry = malloc(sizeof(struct ip_acl_match_entry));
if (!new_match_entry) {
return -1;
}
memmove(&new_match_entry->addr1, ss1, sizeof(struct sockaddr_storage));
memmove(&new_match_entry->addr2, ss2, sizeof(struct sockaddr_storage));
new_match_entry->type = type;
new_match_entry->acceptreject = acceptreject;
new_match_entry->next = NULL;
if (match_entry) {
/*
* special case for index 0, since we need to update
* the head of the list
*/
if (index == 0) {
*match_entry_head = new_match_entry;
new_match_entry->next = match_entry;
} else {
/*
* find the end of the list or stop at "index"
*/
while (match_entry->next) {
match_entry = match_entry->next;
if (i == index) {
break;
}
i++;
}
/*
* insert if there are more entries in the list
*/
if (match_entry->next) {
new_match_entry->next = match_entry->next;
}
/*
* add if we are at the end
*/
match_entry->next = new_match_entry;
}
} else {
/*
* first entry in the list
*/
*match_entry_head = new_match_entry;
}
return 0;
}
diff --git a/libknet/netutils.h b/libknet/netutils.h
index e668ada6..ee10b2b1 100644
--- a/libknet/netutils.h
+++ b/libknet/netutils.h
@@ -1,19 +1,19 @@
/*
* Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
* Federico Simoncelli <fsimon@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#ifndef __KNET_NETUTILS_H__
#define __KNET_NETUTILS_H__
#include <sys/socket.h>
int cmpaddr(const struct sockaddr_storage *ss1, socklen_t sslen1, const struct sockaddr_storage *ss2, socklen_t sslen2);
int cpyaddrport(struct sockaddr_storage *dst, const struct sockaddr_storage *src);
-socklen_t knet_sockaddr_len(const struct sockaddr_storage *ss);
+socklen_t sockaddr_len(const struct sockaddr_storage *ss);
#endif
diff --git a/libknet/tests/Makefile.am b/libknet/tests/Makefile.am
index 37f5935f..86312072 100644
--- a/libknet/tests/Makefile.am
+++ b/libknet/tests/Makefile.am
@@ -1,104 +1,104 @@
#
# Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
#
# Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
#
# This software licensed under GPL-2.0+
#
MAINTAINERCLEANFILES = Makefile.in
include $(top_srcdir)/build-aux/check.mk
include $(top_srcdir)/libknet/tests/api-check.mk
EXTRA_DIST = \
api-test-coverage \
api-check.mk
AM_CPPFLAGS = -I$(top_srcdir)/libknet
-AM_CFLAGS += $(PTHREAD_CFLAGS)
+AM_CFLAGS += $(PTHREAD_CFLAGS) $(libqb_CFLAGS)
LIBS = $(top_builddir)/libknet/libknet.la \
$(PTHREAD_LIBS) $(dl_LIBS)
noinst_HEADERS = \
test-common.h
# the order of those tests is NOT random.
# some functions can only be tested properly after some dependents
# API have been validated upfront.
check_PROGRAMS = \
$(api_checks) \
$(int_checks) \
$(fun_checks)
int_checks = \
int_links_acl_ip_test \
int_timediff_test
fun_checks =
# checks below need to be executed manually
# or with a specifi environment
long_run_checks = \
fun_pmtud_crypto_test
benchmarks = \
knet_bench_test
noinst_PROGRAMS = \
api_knet_handle_new_limit_test \
pckt_test \
$(benchmarks) \
$(long_run_checks) \
$(check_PROGRAMS)
noinst_SCRIPTS = \
api-test-coverage
TESTS = $(check_PROGRAMS)
if INSTALL_TESTS
testsuitedir = $(TESTDIR)
testsuite_PROGRAMS = $(noinst_PROGRAMS)
endif
check-local: check-api-test-coverage
check-api-test-coverage:
chmod u+x $(top_srcdir)/libknet/tests/api-test-coverage
$(top_srcdir)/libknet/tests/api-test-coverage $(top_srcdir) $(top_builddir)
pckt_test_SOURCES = pckt_test.c
int_links_acl_ip_test_SOURCES = int_links_acl_ip.c \
../common.c \
../compat.c \
../logging.c \
../netutils.c \
../threads_common.c \
../onwire.c \
../transports.c \
../transport_common.c \
../transport_loopback.c \
../transport_sctp.c \
../transport_udp.c \
../links_acl.c \
../links_acl_ip.c \
../links_acl_loopback.c
int_timediff_test_SOURCES = int_timediff.c
knet_bench_test_SOURCES = knet_bench.c \
test-common.c \
../common.c \
../logging.c \
../compat.c \
../transport_common.c \
../threads_common.c \
../onwire.c
fun_pmtud_crypto_test_SOURCES = fun_pmtud_crypto.c \
test-common.c \
../onwire.c
diff --git a/libknet/tests/test-common.c b/libknet/tests/test-common.c
index 481d7fe0..b3cf9638 100644
--- a/libknet/tests/test-common.c
+++ b/libknet/tests/test-common.c
@@ -1,585 +1,586 @@
/*
* Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
*
* Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under GPL-2.0+
*/
#include "config.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/select.h>
#include "libknet.h"
#include "test-common.h"
static pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
static int log_init = 0;
static pthread_mutex_t log_thread_mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_t log_thread;
static int log_thread_init = 0;
static int log_fds[2];
struct log_thread_data {
int logfd;
FILE *std;
};
static struct log_thread_data data;
static pthread_mutex_t shutdown_mutex = PTHREAD_MUTEX_INITIALIZER;
static int stop_in_progress = 0;
static int _read_pipe(int fd, char **file, size_t *length)
{
char buf[4096];
int n;
int done = 0;
*file = NULL;
*length = 0;
memset(buf, 0, sizeof(buf));
while (!done) {
n = read(fd, buf, sizeof(buf));
if (n < 0) {
if (errno == EINTR)
continue;
if (*file)
free(*file);
return n;
}
if (n == 0 && (!*length))
return 0;
if (n == 0)
done = 1;
if (*file)
*file = realloc(*file, (*length) + n + done);
else
*file = malloc(n + done);
if (!*file)
return -1;
memmove((*file) + (*length), buf, n);
*length += (done + n);
}
/* Null terminator */
(*file)[(*length) - 1] = 0;
return 0;
}
int execute_shell(const char *command, char **error_string)
{
pid_t pid;
int status, err = 0;
int fd[2];
size_t size = 0;
if ((command == NULL) || (!error_string)) {
errno = EINVAL;
return FAIL;
}
*error_string = NULL;
err = pipe(fd);
if (err)
goto out_clean;
pid = fork();
if (pid < 0) {
err = pid;
goto out_clean;
}
if (pid) { /* parent */
close(fd[1]);
err = _read_pipe(fd[0], error_string, &size);
if (err)
goto out_clean0;
waitpid(pid, &status, 0);
if (!WIFEXITED(status)) {
err = -1;
goto out_clean0;
}
if (WIFEXITED(status) && WEXITSTATUS(status) != 0) {
err = WEXITSTATUS(status);
goto out_clean0;
}
goto out_clean0;
} else { /* child */
close(0);
close(1);
close(2);
close(fd[0]);
dup2(fd[1], 1);
dup2(fd[1], 2);
close(fd[1]);
execlp("/bin/sh", "/bin/sh", "-c", command, NULL);
exit(FAIL);
}
out_clean:
close(fd[1]);
out_clean0:
close(fd[0]);
return err;
}
int is_memcheck(void)
{
char *val;
val = getenv("KNETMEMCHECK");
if (val) {
if (!strncmp(val, "yes", 3)) {
return 1;
}
}
return 0;
}
int is_helgrind(void)
{
char *val;
val = getenv("KNETHELGRIND");
if (val) {
if (!strncmp(val, "yes", 3)) {
return 1;
}
}
return 0;
}
void set_scheduler(int policy)
{
struct sched_param sched_param;
int err;
err = sched_get_priority_max(policy);
if (err < 0) {
printf("Could not get maximum scheduler priority\n");
exit(FAIL);
}
sched_param.sched_priority = err;
err = sched_setscheduler(0, policy, &sched_param);
if (err < 0) {
printf("Could not set priority\n");
exit(FAIL);
}
return;
}
int setup_logpipes(int *logfds)
{
if (pipe2(logfds, O_CLOEXEC | O_NONBLOCK) < 0) {
printf("Unable to setup logging pipe\n");
exit(FAIL);
}
return PASS;
}
void close_logpipes(int *logfds)
{
close(logfds[0]);
logfds[0] = 0;
close(logfds[1]);
logfds[1] = 0;
}
void flush_logs(int logfd, FILE *std)
{
struct knet_log_msg msg;
int len;
while (1) {
len = read(logfd, &msg, sizeof(msg));
if (len != sizeof(msg)) {
/*
* clear errno to avoid incorrect propagation
*/
errno = 0;
return;
}
msg.msg[sizeof(msg.msg) - 1] = 0;
fprintf(std, "[knet]: [%s] %s: %.*s\n",
knet_log_get_loglevel_name(msg.msglevel),
knet_log_get_subsystem_name(msg.subsystem),
KNET_MAX_LOG_MSG_SIZE, msg.msg);
}
}
static void *_logthread(void *args)
{
while (1) {
int num;
struct timeval tv = { 60, 0 };
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(data.logfd, &rfds);
num = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);
if (num < 0) {
fprintf(data.std, "Unable select over logfd!\nHALTING LOGTHREAD!\n");
return NULL;
}
if (num == 0) {
fprintf(data.std, "[knet]: No logs in the last 60 seconds\n");
continue;
}
if (FD_ISSET(data.logfd, &rfds)) {
flush_logs(data.logfd, data.std);
}
}
}
int start_logthread(int logfd, FILE *std)
{
int savederrno = 0;
savederrno = pthread_mutex_lock(&log_thread_mutex);
if (savederrno) {
printf("Unable to get log_thread mutex lock\n");
return -1;
}
if (!log_thread_init) {
data.logfd = logfd;
data.std = std;
savederrno = pthread_create(&log_thread, 0, _logthread, NULL);
if (savederrno) {
printf("Unable to start logging thread: %s\n", strerror(savederrno));
pthread_mutex_unlock(&log_thread_mutex);
return -1;
}
log_thread_init = 1;
}
pthread_mutex_unlock(&log_thread_mutex);
return 0;
}
int stop_logthread(void)
{
int savederrno = 0;
void *retval;
savederrno = pthread_mutex_lock(&log_thread_mutex);
if (savederrno) {
printf("Unable to get log_thread mutex lock\n");
return -1;
}
if (log_thread_init) {
pthread_cancel(log_thread);
pthread_join(log_thread, &retval);
log_thread_init = 0;
}
pthread_mutex_unlock(&log_thread_mutex);
return 0;
}
static void stop_logging(void)
{
stop_logthread();
flush_logs(log_fds[0], stdout);
close_logpipes(log_fds);
}
int start_logging(FILE *std)
{
int savederrno = 0;
savederrno = pthread_mutex_lock(&log_mutex);
if (savederrno) {
printf("Unable to get log_mutex lock\n");
return -1;
}
if (!log_init) {
setup_logpipes(log_fds);
if (atexit(&stop_logging) != 0) {
printf("Unable to register atexit handler to stop logging: %s\n",
strerror(errno));
exit(FAIL);
}
if (start_logthread(log_fds[0], std) < 0) {
exit(FAIL);
}
log_init = 1;
}
pthread_mutex_unlock(&log_mutex);
return log_fds[1];
}
knet_handle_t knet_handle_start(int logfds[2], uint8_t log_level)
{
knet_handle_t knet_h = knet_handle_new_ex(1, logfds[1], log_level, 0);
if (knet_h) {
return knet_h;
} else {
printf("knet_handle_new failed: %s\n", strerror(errno));
flush_logs(logfds[0], stdout);
close_logpipes(logfds);
exit(FAIL);
}
}
int knet_handle_stop(knet_handle_t knet_h)
{
int savederrno;
size_t i, j;
knet_node_id_t host_ids[KNET_MAX_HOST];
uint8_t link_ids[KNET_MAX_LINK];
size_t host_ids_entries = 0, link_ids_entries = 0;
struct knet_link_status status;
savederrno = pthread_mutex_lock(&shutdown_mutex);
if (savederrno) {
printf("Unable to get shutdown mutex lock\n");
return -1;
}
if (stop_in_progress) {
pthread_mutex_unlock(&shutdown_mutex);
errno = EINVAL;
return -1;
}
stop_in_progress = 1;
pthread_mutex_unlock(&shutdown_mutex);
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (knet_handle_setfwd(knet_h, 0) < 0) {
printf("knet_handle_setfwd failed: %s\n", strerror(errno));
return -1;
}
if (knet_host_get_host_list(knet_h, host_ids, &host_ids_entries) < 0) {
printf("knet_host_get_host_list failed: %s\n", strerror(errno));
return -1;
}
for (i = 0; i < host_ids_entries; i++) {
if (knet_link_get_link_list(knet_h, host_ids[i], link_ids, &link_ids_entries)) {
printf("knet_link_get_link_list failed: %s\n", strerror(errno));
return -1;
}
for (j = 0; j < link_ids_entries; j++) {
if (knet_link_get_status(knet_h, host_ids[i], link_ids[j], &status, sizeof(struct knet_link_status))) {
printf("knet_link_get_status failed: %s\n", strerror(errno));
return -1;
}
if (status.enabled) {
if (knet_link_set_enable(knet_h, host_ids[i], j, 0)) {
printf("knet_link_set_enable failed: %s\n", strerror(errno));
return -1;
}
}
knet_link_clear_config(knet_h, host_ids[i], j);
}
if (knet_host_remove(knet_h, host_ids[i]) < 0) {
printf("knet_host_remove failed: %s\n", strerror(errno));
return -1;
}
}
if (knet_handle_free(knet_h)) {
printf("knet_handle_free failed: %s\n", strerror(errno));
return -1;
}
return 0;
}
static int _make_local_sockaddr(struct sockaddr_storage *lo, int offset, int family)
{
in_port_t port;
char portstr[32];
if (offset < 0) {
/*
* api_knet_link_set_config needs to access the API directly, but
* it does not send any traffic, so it´s safe to ask the kernel
* for a random port.
*/
port = 0;
} else {
/* Use the pid if we can. but makes sure its in a sensible range */
port = (getpid() + offset) % (65536-1024) + 1024;
}
sprintf(portstr, "%u", port);
memset(lo, 0, sizeof(struct sockaddr_storage));
printf("Using port %u\n", port);
if (family == AF_INET6) {
return knet_strtoaddr("::1", portstr, lo, sizeof(struct sockaddr_storage));
}
return knet_strtoaddr("127.0.0.1", portstr, lo, sizeof(struct sockaddr_storage));
}
int make_local_sockaddr(struct sockaddr_storage *lo, int offset)
{
return _make_local_sockaddr(lo, offset, AF_INET);
}
int make_local_sockaddr6(struct sockaddr_storage *lo, int offset)
{
return _make_local_sockaddr(lo, offset, AF_INET6);
}
int _knet_link_set_config(knet_handle_t knet_h, knet_node_id_t host_id, uint8_t link_id,
uint8_t transport, uint64_t flags, int family, int dynamic,
struct sockaddr_storage *lo)
{
int err = 0, savederrno = 0;
uint32_t port;
char portstr[32];
for (port = 1025; port < 65536; port++) {
sprintf(portstr, "%u", port);
memset(lo, 0, sizeof(struct sockaddr_storage));
if (family == AF_INET6) {
err = knet_strtoaddr("::1", portstr, lo, sizeof(struct sockaddr_storage));
} else {
err = knet_strtoaddr("127.0.0.1", portstr, lo, sizeof(struct sockaddr_storage));
}
if (err < 0) {
printf("Unable to convert loopback to sockaddr: %s\n", strerror(errno));
goto out;
}
errno = 0;
if (dynamic) {
err = knet_link_set_config(knet_h, host_id, link_id, transport, lo, NULL, flags);
} else {
err = knet_link_set_config(knet_h, host_id, link_id, transport, lo, lo, flags);
}
savederrno = errno;
if ((err < 0) && (savederrno != EADDRINUSE)) {
printf("Unable to configure link: %s\n", strerror(savederrno));
goto out;
}
if (!err) {
printf("Using port %u\n", port);
goto out;
}
}
if (err) {
printf("No more ports available\n");
}
out:
errno = savederrno;
return err;
}
void test_sleep(knet_handle_t knet_h, int seconds)
{
if (is_memcheck() || is_helgrind()) {
printf("Test suite is running under valgrind, adjusting sleep timers\n");
seconds = seconds * 16;
}
sleep(seconds);
}
int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd, FILE *std)
{
int i = 0;
if (is_memcheck() || is_helgrind()) {
printf("Test suite is running under valgrind, adjusting wait_for_host timeout\n");
seconds = seconds * 16;
}
while (i < seconds) {
flush_logs(logfd, std);
if (knet_h->host_index[host_id]->status.reachable == 1) {
printf("Waiting for host to settle\n");
test_sleep(knet_h, 1);
return 0;
}
printf("waiting host %u to be reachable for %d more seconds\n", host_id, seconds - i);
sleep(1);
i++;
}
return -1;
}
int wait_for_packet(knet_handle_t knet_h, int seconds, int datafd, int logfd, FILE *std)
{
fd_set rfds;
struct timeval tv;
int err = 0, i = 0;
if (is_memcheck() || is_helgrind()) {
printf("Test suite is running under valgrind, adjusting wait_for_packet timeout\n");
seconds = seconds * 16;
}
try_again:
FD_ZERO(&rfds);
FD_SET(datafd, &rfds);
tv.tv_sec = 1;
tv.tv_usec = 0;
err = select(datafd+1, &rfds, NULL, NULL, &tv);
/*
* on slow arches the first call to select can return 0.
* pick an arbitrary 10 times loop (multiplied by waiting seconds)
* before failing.
*/
if ((!err) && (i < seconds)) {
flush_logs(logfd, std);
i++;
goto try_again;
}
if ((err > 0) && (FD_ISSET(datafd, &rfds))) {
return 0;
}
+ errno = ETIMEDOUT;
return -1;
}
diff --git a/libknet/transport_loopback.c b/libknet/transport_loopback.c
index b36fed20..dfd6384d 100644
--- a/libknet/transport_loopback.c
+++ b/libknet/transport_loopback.c
@@ -1,80 +1,85 @@
/*
* Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
*
* Author: Christine Caulfield <ccaulfie@redhat.com>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include "libknet.h"
#include "compat.h"
#include "host.h"
#include "link.h"
#include "logging.h"
#include "common.h"
#include "transports.h"
#include "transport_loopback.h"
#include "threads_common.h"
/* This is just a file of empty calls as the actual loopback is in threads_tx.c as a special case
when receiving a packet from the localhost */
int loopback_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
kn_link->transport_connected = 1;
kn_link->status.connected = 1;
return 0;
}
int loopback_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
return 0;
}
int loopback_transport_free(knet_handle_t knet_h)
{
return 0;
}
int loopback_transport_init(knet_handle_t knet_h)
{
return 0;
}
int loopback_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
return 0;
}
int loopback_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
return 0;
}
int loopback_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg)
{
return 0;
}
int loopback_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link)
{
return 0;
}
int loopback_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link)
{
return 0;
}
+
+int loopback_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link)
+{
+ return 0;
+}
diff --git a/libknet/transport_loopback.h b/libknet/transport_loopback.h
index 0cb7bb37..636034bb 100644
--- a/libknet/transport_loopback.h
+++ b/libknet/transport_loopback.h
@@ -1,28 +1,29 @@
/*
* Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include "internals.h"
#ifndef __KNET_TRANSPORT_LOOPBACK_H__
#define __KNET_TRANSPORT_LOOPBACK_H__
#define KNET_PMTUD_LOOPBACK_OVERHEAD 0
int loopback_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link);
int loopback_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link);
int loopback_transport_free(knet_handle_t knet_h);
int loopback_transport_init(knet_handle_t knet_h);
int loopback_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int loopback_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int loopback_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg);
int loopback_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link);
int loopback_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link);
+int loopback_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link);
#endif
diff --git a/libknet/transport_sctp.c b/libknet/transport_sctp.c
index 667d80cf..17e2f542 100644
--- a/libknet/transport_sctp.c
+++ b/libknet/transport_sctp.c
@@ -1,1562 +1,1602 @@
/*
* Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
*
* Author: Christine Caulfield <ccaulfie@redhat.com>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <assert.h>
#include "compat.h"
#include "host.h"
#include "links.h"
#include "links_acl.h"
#include "links_acl_ip.h"
#include "logging.h"
+#include "netutils.h"
#include "common.h"
#include "transport_common.h"
#include "transports.h"
#include "threads_common.h"
#ifdef HAVE_NETINET_SCTP_H
#include <netinet/sctp.h>
#include "transport_sctp.h"
typedef struct sctp_handle_info {
- struct knet_list_head listen_links_list;
- struct knet_list_head connect_links_list;
+ struct qb_list_head listen_links_list;
+ struct qb_list_head connect_links_list;
int connect_epollfd;
int connectsockfd[2];
int listen_epollfd;
int listensockfd[2];
pthread_t connect_thread;
pthread_t listen_thread;
socklen_t event_subscribe_kernel_size;
char *event_subscribe_buffer;
} sctp_handle_info_t;
/*
* use by fd_tracker data type
*/
#define SCTP_NO_LINK_INFO 0
#define SCTP_LISTENER_LINK_INFO 1
#define SCTP_ACCEPTED_LINK_INFO 2
#define SCTP_CONNECT_LINK_INFO 3
/*
* this value is per listener
*/
#define MAX_ACCEPTED_SOCKS 256
typedef struct sctp_listen_link_info {
- struct knet_list_head list;
+ struct qb_list_head list;
int listen_sock;
int accepted_socks[MAX_ACCEPTED_SOCKS];
struct sockaddr_storage src_address;
int on_listener_epoll;
int on_rx_epoll;
int sock_shutdown;
} sctp_listen_link_info_t;
typedef struct sctp_accepted_link_info {
char mread_buf[KNET_DATABUFSIZE];
ssize_t mread_len;
sctp_listen_link_info_t *link_info;
} sctp_accepted_link_info_t ;
typedef struct sctp_connect_link_info {
- struct knet_list_head list;
+ struct qb_list_head list;
sctp_listen_link_info_t *listener;
struct knet_link *link;
struct sockaddr_storage dst_address;
int connect_sock;
int on_rx_epoll;
int close_sock;
int sock_shutdown;
} sctp_connect_link_info_t;
/*
* socket handling functions
*
* those functions do NOT perform locking. locking
* should be handled in the right context from callers
*/
/*
* sockets are removed from rx_epoll from callers
* see also error handling functions
*/
static int _close_connect_socket(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
struct epoll_event ev;
sctp_connect_link_info_t *info = kn_link->transport_link;
if (info->connect_sock != -1) {
if (info->on_rx_epoll) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = info->connect_sock;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_DEL, info->connect_sock, &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove connected socket from epoll pool: %s",
strerror(savederrno));
goto exit_error;
}
info->on_rx_epoll = 0;
}
if (_set_fd_tracker(knet_h, info->connect_sock, KNET_MAX_TRANSPORTS, SCTP_NO_LINK_INFO, NULL) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(savederrno));
} else {
close(info->connect_sock);
info->connect_sock = -1;
}
}
exit_error:
errno = savederrno;
return err;
}
static int _enable_sctp_notifications(knet_handle_t knet_h, int sock, const char *type)
{
int err = 0, savederrno = 0;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
if (setsockopt(sock, IPPROTO_SCTP, SCTP_EVENTS,
handle_info->event_subscribe_buffer,
handle_info->event_subscribe_kernel_size) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to enable %s events: %s",
type, strerror(savederrno));
}
errno = savederrno;
return err;
}
static int _configure_sctp_socket(knet_handle_t knet_h, int sock, struct sockaddr_storage *address, uint64_t flags, const char *type)
{
int err = 0, savederrno = 0;
int value;
int level;
#ifdef SOL_SCTP
level = SOL_SCTP;
#else
level = IPPROTO_SCTP;
#endif
if (_configure_transport_socket(knet_h, sock, address, flags, type) < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
value = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &value, sizeof(value)) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSPORT, "Unable to set reuseaddr on socket %d: %s",
sock, strerror(savederrno));
goto exit_error;
}
value = 1;
if (setsockopt(sock, level, SCTP_NODELAY, &value, sizeof(value)) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSPORT, "Unable to set sctp nodelay: %s",
strerror(savederrno));
goto exit_error;
}
if (_enable_sctp_notifications(knet_h, sock, type) < 0) {
savederrno = errno;
err = -1;
}
exit_error:
errno = savederrno;
return err;
}
static int _reconnect_socket(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
sctp_connect_link_info_t *info = kn_link->transport_link;
if (connect(info->connect_sock, (struct sockaddr *)&kn_link->dst_addr, sockaddr_len(&kn_link->dst_addr)) < 0) {
savederrno = errno;
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP socket %d received error: %s", info->connect_sock, strerror(savederrno));
if ((savederrno != EALREADY) && (savederrno != EINPROGRESS) && (savederrno != EISCONN)) {
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to connect SCTP socket %d: %s",
info->connect_sock, strerror(savederrno));
}
}
errno = savederrno;
return err;
}
static int _create_connect_socket(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
struct epoll_event ev;
sctp_connect_link_info_t *info = kn_link->transport_link;
int connect_sock;
+ struct sockaddr_storage connect_addr;
connect_sock = socket(kn_link->dst_addr.ss_family, SOCK_STREAM, IPPROTO_SCTP);
if (connect_sock < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to create send/recv socket: %s",
strerror(savederrno));
goto exit_error;
}
if (_configure_sctp_socket(knet_h, connect_sock, &kn_link->dst_addr, kn_link->flags, "SCTP connect") < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
+ memset(&connect_addr, 0, sizeof(struct sockaddr_storage));
+ if (knet_strtoaddr(kn_link->status.src_ipaddr, "0", &connect_addr, sockaddr_len(&connect_addr)) < 0) {
+ savederrno = errno;
+ err = -1;
+ log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to resolve connecting socket: %s",
+ strerror(savederrno));
+ goto exit_error;
+
+ }
+
+ if (bind(connect_sock, (struct sockaddr *)&connect_addr, sockaddr_len(&connect_addr)) < 0) {
+ savederrno = errno;
+ err = -1;
+ log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to bind connecting socket: %s",
+ strerror(savederrno));
+ goto exit_error;
+ }
+
if (_set_fd_tracker(knet_h, connect_sock, KNET_TRANSPORT_SCTP, SCTP_CONNECT_LINK_INFO, info) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = connect_sock;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_ADD, connect_sock, &ev)) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to add connected socket to epoll pool: %s",
strerror(errno));
}
info->on_rx_epoll = 1;
info->connect_sock = connect_sock;
info->close_sock = 0;
kn_link->outsock = info->connect_sock;
if (_reconnect_socket(knet_h, kn_link) < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
exit_error:
if (err) {
if (connect_sock >= 0) {
close(connect_sock);
}
}
errno = savederrno;
return err;
}
static void _lock_sleep_relock(knet_handle_t knet_h)
{
int i = 0;
/* Don't hold onto the lock while sleeping */
pthread_rwlock_unlock(&knet_h->global_rwlock);
while (i < 5) {
usleep(KNET_THREADS_TIMERES / 16);
if (!pthread_rwlock_rdlock(&knet_h->global_rwlock)) {
/*
* lock acquired, we can go out
*/
return;
} else {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to get read lock!");
i++;
}
}
/*
* time to crash! if we cannot re-acquire the lock
* there is no easy way out of this one
*/
assert(0);
}
int sctp_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
sctp_connect_link_info_t *connect_info = knet_h->knet_transport_fd_tracker[sockfd].data;
sctp_accepted_link_info_t *accepted_info = knet_h->knet_transport_fd_tracker[sockfd].data;
sctp_listen_link_info_t *listen_info;
if (recv_err < 0) {
switch (knet_h->knet_transport_fd_tracker[sockfd].data_type) {
case SCTP_CONNECT_LINK_INFO:
if (connect_info->link->transport_connected == 0) {
return -1;
}
break;
case SCTP_ACCEPTED_LINK_INFO:
listen_info = accepted_info->link_info;
if (listen_info->listen_sock != sockfd) {
if (listen_info->on_rx_epoll == 0) {
return -1;
}
}
break;
}
if (recv_errno == EAGAIN) {
#ifdef DEBUG
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Sock: %d is overloaded. Slowing TX down", sockfd);
#endif
_lock_sleep_relock(knet_h);
return 1;
}
return -1;
}
return 0;
}
/*
* socket error management functions
*
* both called with global read lock.
*
* NOTE: we need to remove the fd from the epoll as soon as possible
* even before we notify the respective thread to take care of it
* because scheduling can make it so that this thread will overload
* and the threads supposed to take care of the error will never
* be able to take action.
* we CANNOT handle FDs here directly (close/reconnect/etc) due
* to locking context. We need to delegate that to their respective
* management threads within the global write lock.
*
* this function is called from:
* - RX thread with recv_err <= 0 directly on recvmmsg error
* - transport_rx_is_data when msg_len == 0 (recv_err = 1)
* - transport_rx_is_data on notification (recv_err = 2)
*
* basically this small abuse of recv_err is to detect notifications
* generated by sockets created by listen().
*/
int sctp_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
struct epoll_event ev;
sctp_accepted_link_info_t *accepted_info = knet_h->knet_transport_fd_tracker[sockfd].data;
sctp_listen_link_info_t *listen_info;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
switch (knet_h->knet_transport_fd_tracker[sockfd].data_type) {
case SCTP_CONNECT_LINK_INFO:
/*
* all connect link have notifications enabled
* and we accept only data from notification and
* generic recvmmsg errors.
*
* Errors generated by msg_len 0 can be ignored because
* they follow a notification (double notification)
*/
if (recv_err != 1) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Notifying connect thread that sockfd %d received an error", sockfd);
if (sendto(handle_info->connectsockfd[1], &sockfd, sizeof(int), MSG_DONTWAIT | MSG_NOSIGNAL, NULL, 0) != sizeof(int)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to notify connect thread: %s", strerror(errno));
}
}
break;
case SCTP_ACCEPTED_LINK_INFO:
listen_info = accepted_info->link_info;
if (listen_info->listen_sock != sockfd) {
if (recv_err != 1) {
if (listen_info->on_rx_epoll) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = sockfd;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_DEL, sockfd, &ev)) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove EOFed socket from epoll pool: %s",
strerror(errno));
return -1;
}
listen_info->on_rx_epoll = 0;
}
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Notifying listen thread that sockfd %d received an error", sockfd);
if (sendto(handle_info->listensockfd[1], &sockfd, sizeof(int), MSG_DONTWAIT | MSG_NOSIGNAL, NULL, 0) != sizeof(int)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to notify listen thread: %s", strerror(errno));
}
}
} else {
/*
* this means the listen() socket has generated
* a notification. now what? :-)
*/
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received stray notification for listen() socket %d", sockfd);
}
break;
default:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received unknown notification? %d", sockfd);
break;
}
/*
* Under RX pressure we need to give time to IPC to pick up the message
*/
_lock_sleep_relock(knet_h);
return 0;
}
/*
* NOTE: sctp_transport_rx_is_data is called with global rdlock
* delegate any FD error management to sctp_transport_rx_sock_error
* and keep this code to parsing incoming data only
*/
int sctp_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg)
{
size_t i;
struct iovec *iov = msg->msg_hdr.msg_iov;
size_t iovlen = msg->msg_hdr.msg_iovlen;
struct sctp_assoc_change *sac;
union sctp_notification *snp;
sctp_accepted_link_info_t *listen_info = knet_h->knet_transport_fd_tracker[sockfd].data;
sctp_connect_link_info_t *connect_info = knet_h->knet_transport_fd_tracker[sockfd].data;
if (!(msg->msg_hdr.msg_flags & MSG_NOTIFICATION)) {
if (msg->msg_len == 0) {
/*
* NOTE: with event notification enabled, we receive error twice:
* 1) from the event notification
* 2) followed by a 0 byte msg_len
*
* the event handler should take care to avoid #2 by stopping
* the rx thread from processing more packets than necessary.
*/
if (knet_h->knet_transport_fd_tracker[sockfd].data_type == SCTP_CONNECT_LINK_INFO) {
if (connect_info->sock_shutdown) {
return KNET_TRANSPORT_RX_OOB_DATA_CONTINUE;
}
} else {
if (listen_info->link_info->sock_shutdown) {
return KNET_TRANSPORT_RX_OOB_DATA_CONTINUE;
}
}
/*
* this is pretty much dead code and we should never hit it.
* keep it for safety and avoid the rx thread to process
* bad info / data.
*/
return KNET_TRANSPORT_RX_NOT_DATA_STOP;
}
/*
* missing MSG_EOR has to be treated as a short read
* from the socket and we need to fill in the mread buf
* while we wait for MSG_EOR
*/
if (!(msg->msg_hdr.msg_flags & MSG_EOR)) {
/*
* copy the incoming data into mread_buf + mread_len (incremental)
* and increase mread_len
*/
memmove(listen_info->mread_buf + listen_info->mread_len, iov->iov_base, msg->msg_len);
listen_info->mread_len = listen_info->mread_len + msg->msg_len;
return KNET_TRANSPORT_RX_NOT_DATA_CONTINUE;
}
/*
* got EOR.
* if mread_len is > 0 we are completing a packet from short reads
* complete reassembling the packet in mread_buf, copy it back in the iov
* and set the iov/msg len numbers (size) correctly
*/
if (listen_info->mread_len) {
/*
* add last fragment to mread_buf
*/
memmove(listen_info->mread_buf + listen_info->mread_len, iov->iov_base, msg->msg_len);
listen_info->mread_len = listen_info->mread_len + msg->msg_len;
/*
* move all back into the iovec
*/
memmove(iov->iov_base, listen_info->mread_buf, listen_info->mread_len);
msg->msg_len = listen_info->mread_len;
listen_info->mread_len = 0;
}
return KNET_TRANSPORT_RX_IS_DATA;
}
if (!(msg->msg_hdr.msg_flags & MSG_EOR)) {
return KNET_TRANSPORT_RX_NOT_DATA_STOP;
}
for (i = 0; i < iovlen; i++) {
snp = iov[i].iov_base;
switch (snp->sn_header.sn_type) {
case SCTP_ASSOC_CHANGE:
sac = &snp->sn_assoc_change;
switch (sac->sac_state) {
case SCTP_COMM_LOST:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: comm_lost", sockfd);
+ if (knet_h->knet_transport_fd_tracker[sockfd].data_type == SCTP_CONNECT_LINK_INFO) {
+ connect_info->close_sock = 1;
+ connect_info->link->transport_connected = 0;
+ }
sctp_transport_rx_sock_error(knet_h, sockfd, 2, 0);
return KNET_TRANSPORT_RX_OOB_DATA_STOP;
break;
case SCTP_COMM_UP:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: comm_up", sockfd);
if (knet_h->knet_transport_fd_tracker[sockfd].data_type == SCTP_CONNECT_LINK_INFO) {
connect_info->link->transport_connected = 1;
}
break;
case SCTP_RESTART:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: restart", sockfd);
break;
case SCTP_SHUTDOWN_COMP:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: shutdown comp", sockfd);
if (knet_h->knet_transport_fd_tracker[sockfd].data_type == SCTP_CONNECT_LINK_INFO) {
connect_info->close_sock = 1;
}
sctp_transport_rx_sock_error(knet_h, sockfd, 2, 0);
return KNET_TRANSPORT_RX_OOB_DATA_STOP;
break;
case SCTP_CANT_STR_ASSOC:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: cant str assoc", sockfd);
sctp_transport_rx_sock_error(knet_h, sockfd, 2, 0);
break;
default:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp assoc change socket %d: unknown %d", sockfd, sac->sac_state);
break;
}
break;
case SCTP_SHUTDOWN_EVENT:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp shutdown event socket %d", sockfd);
if (knet_h->knet_transport_fd_tracker[sockfd].data_type == SCTP_CONNECT_LINK_INFO) {
connect_info->link->transport_connected = 0;
connect_info->sock_shutdown = 1;
} else {
listen_info->link_info->sock_shutdown = 1;
}
break;
case SCTP_SEND_FAILED:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp send failed socket: %d", sockfd);
break;
case SCTP_PEER_ADDR_CHANGE:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp peer addr change socket %d", sockfd);
break;
case SCTP_REMOTE_ERROR:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] sctp remote error socket %d", sockfd);
break;
default:
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "[event] unknown sctp event socket: %d type: %hu", sockfd, snp->sn_header.sn_type);
break;
}
}
return KNET_TRANSPORT_RX_OOB_DATA_CONTINUE;
}
+int sctp_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link)
+{
+ sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
+ sctp_connect_link_info_t *info = kn_link->transport_link;
+
+ kn_link->transport_connected = 0;
+ info->close_sock = 1;
+
+ log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Notifying connect thread that sockfd %d received a link down event", info->connect_sock);
+ if (sendto(handle_info->connectsockfd[1], &info->connect_sock, sizeof(int), MSG_DONTWAIT | MSG_NOSIGNAL, NULL, 0) != sizeof(int)) {
+ log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to notify connect thread: %s", strerror(errno));
+ }
+
+ return 0;
+}
+
/*
* connect / outgoing socket management thread
*/
/*
* _handle_connected_sctp* are called with a global write lock
* from the connect_thread
*/
static void _handle_connected_sctp_socket(knet_handle_t knet_h, int connect_sock)
{
int err;
unsigned int status, len = sizeof(status);
sctp_connect_link_info_t *info = knet_h->knet_transport_fd_tracker[connect_sock].data;
struct knet_link *kn_link = info->link;
if (info->close_sock) {
if (_close_connect_socket(knet_h, kn_link) < 0) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to close sock %d from _handle_connected_sctp_socket: %s", connect_sock, strerror(errno));
return;
}
info->close_sock = 0;
if (_create_connect_socket(knet_h, kn_link) < 0) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to recreate connecting sock! %s", strerror(errno));
return;
}
}
_reconnect_socket(knet_h, info->link);
err = getsockopt(connect_sock, SOL_SOCKET, SO_ERROR, &status, &len);
if (err) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP getsockopt() on connecting socket %d failed: %s",
connect_sock, strerror(errno));
return;
}
if (status) {
log_info(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP connect on %d to %s port %s failed: %s",
connect_sock, kn_link->status.dst_ipaddr, kn_link->status.dst_port,
strerror(status));
/*
* No need to create a new socket if connect failed,
* just retry connect
*/
return;
}
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP handler fd %d now connected to %s port %s",
connect_sock,
kn_link->status.dst_ipaddr, kn_link->status.dst_port);
}
static void _handle_connected_sctp_notifications(knet_handle_t knet_h)
{
int sockfd = -1;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
if (recv(handle_info->connectsockfd[0], &sockfd, sizeof(int), MSG_DONTWAIT | MSG_NOSIGNAL) != sizeof(int)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Short read on connectsockfd");
return;
}
if (_is_valid_fd(knet_h, sockfd) < 1) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received stray notification for connected socket fd error");
return;
}
/*
* revalidate sockfd
*/
if ((sockfd < 0) || (sockfd >= KNET_MAX_FDS)) {
return;
}
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Processing connected error on socket: %d", sockfd);
_handle_connected_sctp_socket(knet_h, sockfd);
}
static void *_sctp_connect_thread(void *data)
{
int savederrno;
int i, nev;
knet_handle_t knet_h = (knet_handle_t) data;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
struct epoll_event events[KNET_EPOLL_MAX_EVENTS];
set_thread_status(knet_h, KNET_THREAD_SCTP_CONN, KNET_THREAD_STARTED);
while (!shutdown_in_progress(knet_h)) {
nev = epoll_wait(handle_info->connect_epollfd, events, KNET_EPOLL_MAX_EVENTS, KNET_THREADS_TIMERES / 1000);
/*
* we use timeout to detect if thread is shutting down
*/
if (nev == 0) {
continue;
}
if (nev < 0) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP connect handler EPOLL ERROR: %s",
strerror(errno));
continue;
}
/*
* Sort out which FD has a connection
*/
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to get write lock: %s",
strerror(savederrno));
continue;
}
/*
* minor optimization: deduplicate events
*
* in some cases we can receive multiple notifcations
* of the same FD having issues or need handling.
* It's enough to process it once even tho it's safe
* to handle them multiple times.
*/
for (i = 0; i < nev; i++) {
if (events[i].data.fd == handle_info->connectsockfd[0]) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received notification from rx_error for connected socket");
_handle_connected_sctp_notifications(knet_h);
} else {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received stray notification on connected sockfd %d\n", events[i].data.fd);
}
}
pthread_rwlock_unlock(&knet_h->global_rwlock);
/*
* this thread can generate events for itself.
* we need to sleep in between loops to allow other threads
* to be scheduled
*/
usleep(knet_h->reconnect_int * 1000);
}
set_thread_status(knet_h, KNET_THREAD_SCTP_CONN, KNET_THREAD_STOPPED);
return NULL;
}
/*
* listen/incoming connections management thread
*/
/*
* Listener received a new connection
* called with a write lock from main thread
*/
static void _handle_incoming_sctp(knet_handle_t knet_h, int listen_sock)
{
int err = 0, savederrno = 0;
int new_fd;
int i = -1;
sctp_listen_link_info_t *info = knet_h->knet_transport_fd_tracker[listen_sock].data;
struct epoll_event ev;
struct sockaddr_storage ss;
socklen_t sock_len = sizeof(ss);
char addr_str[KNET_MAX_HOST_LEN];
char port_str[KNET_MAX_PORT_LEN];
sctp_accepted_link_info_t *accept_info = NULL;
new_fd = accept(listen_sock, (struct sockaddr *)&ss, &sock_len);
if (new_fd < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: accept error: %s", strerror(errno));
goto exit_error;
}
if (knet_addrtostr(&ss, sizeof(ss),
addr_str, KNET_MAX_HOST_LEN,
port_str, KNET_MAX_PORT_LEN) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: unable to gather socket info");
goto exit_error;
}
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: received connection from: %s port: %s",
addr_str, port_str);
if (knet_h->use_access_lists) {
if (!check_validate(knet_h, listen_sock, KNET_TRANSPORT_SCTP, &ss)) {
savederrno = EINVAL;
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Connection rejected from %s/%s", addr_str, port_str);
close(new_fd);
errno = savederrno;
return;
}
}
/*
* Keep a track of all accepted FDs
*/
for (i=0; i<MAX_ACCEPTED_SOCKS; i++) {
if (info->accepted_socks[i] == -1) {
info->accepted_socks[i] = new_fd;
break;
}
}
if (i == MAX_ACCEPTED_SOCKS) {
errno = EBUSY;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: too many connections!");
goto exit_error;
}
if (_configure_common_socket(knet_h, new_fd, 0, "SCTP incoming") < 0) { /* Inherit flags from listener? */
savederrno = errno;
err = -1;
goto exit_error;
}
if (_enable_sctp_notifications(knet_h, new_fd, "Incoming connection") < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
accept_info = malloc(sizeof(sctp_accepted_link_info_t));
if (!accept_info) {
savederrno = errno;
err = -1;
goto exit_error;
}
memset(accept_info, 0, sizeof(sctp_accepted_link_info_t));
accept_info->link_info = info;
if (_set_fd_tracker(knet_h, new_fd, KNET_TRANSPORT_SCTP, SCTP_ACCEPTED_LINK_INFO, accept_info) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(errno));
goto exit_error;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = new_fd;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_ADD, new_fd, &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: unable to add accepted socket %d to epoll pool: %s",
new_fd, strerror(errno));
goto exit_error;
}
info->on_rx_epoll = 1;
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Incoming: accepted new fd %d for %s/%s (listen fd: %d). index: %d",
new_fd, addr_str, port_str, info->listen_sock, i);
exit_error:
if (err) {
if ((i >= 0) && (i < MAX_ACCEPTED_SOCKS)) {
info->accepted_socks[i] = -1;
}
_set_fd_tracker(knet_h, new_fd, KNET_MAX_TRANSPORTS, SCTP_NO_LINK_INFO, NULL);
free(accept_info);
if (new_fd >= 0) {
close(new_fd);
}
}
errno = savederrno;
return;
}
/*
* Listen thread received a notification of a bad socket that needs closing
* called with a write lock from main thread
*/
static void _handle_listen_sctp_errors(knet_handle_t knet_h)
{
int sockfd = -1;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
sctp_accepted_link_info_t *accept_info;
sctp_listen_link_info_t *info;
struct knet_host *host;
int link_idx;
int i;
if (recv(handle_info->listensockfd[0], &sockfd, sizeof(int), MSG_DONTWAIT | MSG_NOSIGNAL) != sizeof(int)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Short read on listensockfd");
return;
}
if (_is_valid_fd(knet_h, sockfd) < 1) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received stray notification for listen socket fd error");
return;
}
/*
* revalidate sockfd
*/
if ((sockfd < 0) || (sockfd >= KNET_MAX_FDS)) {
return;
}
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Processing listen error on socket: %d", sockfd);
accept_info = knet_h->knet_transport_fd_tracker[sockfd].data;
info = accept_info->link_info;
/*
* clear all links using this accepted socket as
* outbound dynamically connected socket
*/
for (host = knet_h->host_head; host != NULL; host = host->next) {
for (link_idx = 0; link_idx < KNET_MAX_LINK; link_idx++) {
if ((host->link[link_idx].dynamic == KNET_LINK_DYNIP) &&
(host->link[link_idx].outsock == sockfd)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Found dynamic connection on host %d link %d (%d)",
host->host_id, link_idx, sockfd);
host->link[link_idx].status.dynconnected = 0;
host->link[link_idx].transport_connected = 0;
host->link[link_idx].outsock = 0;
memset(&host->link[link_idx].dst_addr, 0, sizeof(struct sockaddr_storage));
}
}
}
for (i=0; i<MAX_ACCEPTED_SOCKS; i++) {
if (sockfd == info->accepted_socks[i]) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Closing accepted socket %d", sockfd);
_set_fd_tracker(knet_h, sockfd, KNET_MAX_TRANSPORTS, SCTP_NO_LINK_INFO, NULL);
info->accepted_socks[i] = -1;
free(accept_info);
close(sockfd);
break; /* Keeps covscan happy */
}
}
}
static void *_sctp_listen_thread(void *data)
{
int savederrno;
int i, nev;
knet_handle_t knet_h = (knet_handle_t) data;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
struct epoll_event events[KNET_EPOLL_MAX_EVENTS];
set_thread_status(knet_h, KNET_THREAD_SCTP_LISTEN, KNET_THREAD_STARTED);
while (!shutdown_in_progress(knet_h)) {
nev = epoll_wait(handle_info->listen_epollfd, events, KNET_EPOLL_MAX_EVENTS, KNET_THREADS_TIMERES / 1000);
/*
* we use timeout to detect if thread is shutting down
*/
if (nev == 0) {
continue;
}
if (nev < 0) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP listen handler EPOLL ERROR: %s",
strerror(errno));
continue;
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to get write lock: %s",
strerror(savederrno));
continue;
}
/*
* Sort out which FD has an incoming connection
*/
for (i = 0; i < nev; i++) {
if (events[i].data.fd == handle_info->listensockfd[0]) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received notification from rx_error for listener/accepted socket");
_handle_listen_sctp_errors(knet_h);
} else {
if (_is_valid_fd(knet_h, events[i].data.fd) == 1) {
_handle_incoming_sctp(knet_h, events[i].data.fd);
} else {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Received listen notification from invalid socket");
}
}
}
pthread_rwlock_unlock(&knet_h->global_rwlock);
}
set_thread_status(knet_h, KNET_THREAD_SCTP_LISTEN, KNET_THREAD_STOPPED);
return NULL;
}
/*
* sctp_link_listener_start/stop are called in global write lock
* context from set_config and clear_config.
*/
static sctp_listen_link_info_t *sctp_link_listener_start(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
int listen_sock = -1;
struct epoll_event ev;
sctp_listen_link_info_t *info = NULL;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
/*
* Only allocate a new listener if src address is different
*/
- knet_list_for_each_entry(info, &handle_info->listen_links_list, list) {
+ qb_list_for_each_entry(info, &handle_info->listen_links_list, list) {
if (memcmp(&info->src_address, &kn_link->src_addr, sizeof(struct sockaddr_storage)) == 0) {
if ((check_add(knet_h, info->listen_sock, KNET_TRANSPORT_SCTP, -1,
&kn_link->dst_addr, &kn_link->dst_addr, CHECK_TYPE_ADDRESS, CHECK_ACCEPT) < 0) && (errno != EEXIST)) {
return NULL;
}
return info;
}
}
info = malloc(sizeof(sctp_listen_link_info_t));
if (!info) {
err = -1;
goto exit_error;
}
memset(info, 0, sizeof(sctp_listen_link_info_t));
memset(info->accepted_socks, -1, sizeof(info->accepted_socks));
memmove(&info->src_address, &kn_link->src_addr, sizeof(struct sockaddr_storage));
listen_sock = socket(kn_link->src_addr.ss_family, SOCK_STREAM, IPPROTO_SCTP);
if (listen_sock < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to create listener socket: %s",
strerror(savederrno));
goto exit_error;
}
if (_configure_sctp_socket(knet_h, listen_sock, &kn_link->src_addr, kn_link->flags, "SCTP listener") < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
if (bind(listen_sock, (struct sockaddr *)&kn_link->src_addr, sockaddr_len(&kn_link->src_addr)) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to bind listener socket: %s",
strerror(savederrno));
goto exit_error;
}
if (listen(listen_sock, 5) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to listen on listener socket: %s",
strerror(savederrno));
goto exit_error;
}
if (_set_fd_tracker(knet_h, listen_sock, KNET_TRANSPORT_SCTP, SCTP_LISTENER_LINK_INFO, info) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
if ((check_add(knet_h, listen_sock, KNET_TRANSPORT_SCTP, -1,
&kn_link->dst_addr, &kn_link->dst_addr, CHECK_TYPE_ADDRESS, CHECK_ACCEPT) < 0) && (errno != EEXIST)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to configure default access lists: %s",
strerror(savederrno));
goto exit_error;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = listen_sock;
if (epoll_ctl(handle_info->listen_epollfd, EPOLL_CTL_ADD, listen_sock, &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to add listener to epoll pool: %s",
strerror(savederrno));
goto exit_error;
}
info->on_listener_epoll = 1;
info->listen_sock = listen_sock;
- knet_list_add(&info->list, &handle_info->listen_links_list);
+ qb_list_add(&info->list, &handle_info->listen_links_list);
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Listening on fd %d for %s:%s", listen_sock, kn_link->status.src_ipaddr, kn_link->status.src_port);
exit_error:
if (err) {
if ((info) && (info->on_listener_epoll)) {
epoll_ctl(handle_info->listen_epollfd, EPOLL_CTL_DEL, listen_sock, &ev);
}
if (listen_sock >= 0) {
check_rmall(knet_h, listen_sock, KNET_TRANSPORT_SCTP);
close(listen_sock);
}
if (info) {
free(info);
info = NULL;
}
}
errno = savederrno;
return info;
}
static int sctp_link_listener_stop(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
int found = 0, i;
struct knet_host *host;
int link_idx;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
sctp_connect_link_info_t *this_link_info = kn_link->transport_link;
sctp_listen_link_info_t *info = this_link_info->listener;
sctp_connect_link_info_t *link_info;
struct epoll_event ev;
for (host = knet_h->host_head; host != NULL; host = host->next) {
for (link_idx = 0; link_idx < KNET_MAX_LINK; link_idx++) {
if (&host->link[link_idx] == kn_link)
continue;
link_info = host->link[link_idx].transport_link;
if ((link_info) &&
(link_info->listener == info)) {
found = 1;
break;
}
}
}
if ((check_rm(knet_h, info->listen_sock, KNET_TRANSPORT_SCTP,
&kn_link->dst_addr, &kn_link->dst_addr, CHECK_TYPE_ADDRESS, CHECK_ACCEPT) < 0) && (errno != ENOENT)) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove default access lists for %d", info->listen_sock);
}
if (found) {
this_link_info->listener = NULL;
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP listener socket %d still in use", info->listen_sock);
savederrno = EBUSY;
err = -1;
goto exit_error;
}
if (info->on_listener_epoll) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = info->listen_sock;
if (epoll_ctl(handle_info->listen_epollfd, EPOLL_CTL_DEL, info->listen_sock, &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove listener to epoll pool: %s",
strerror(savederrno));
goto exit_error;
}
info->on_listener_epoll = 0;
}
if (_set_fd_tracker(knet_h, info->listen_sock, KNET_MAX_TRANSPORTS, SCTP_NO_LINK_INFO, NULL) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
check_rmall(knet_h, info->listen_sock, KNET_TRANSPORT_SCTP);
close(info->listen_sock);
for (i=0; i< MAX_ACCEPTED_SOCKS; i++) {
if (info->accepted_socks[i] > -1) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = info->accepted_socks[i];
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_DEL, info->accepted_socks[i], &ev)) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove EOFed socket from epoll pool: %s",
strerror(errno));
}
info->on_rx_epoll = 0;
free(knet_h->knet_transport_fd_tracker[info->accepted_socks[i]].data);
close(info->accepted_socks[i]);
if (_set_fd_tracker(knet_h, info->accepted_socks[i], KNET_MAX_TRANSPORTS, SCTP_NO_LINK_INFO, NULL) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
info->accepted_socks[i] = -1;
}
}
- knet_list_del(&info->list);
+ qb_list_del(&info->list);
free(info);
this_link_info->listener = NULL;
exit_error:
errno = savederrno;
return err;
}
/*
* Links config/clear. Both called with global wrlock from link_set_config/clear_config
*/
int sctp_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
int savederrno = 0, err = 0;
sctp_connect_link_info_t *info;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
info = malloc(sizeof(sctp_connect_link_info_t));
if (!info) {
goto exit_error;
}
memset(info, 0, sizeof(sctp_connect_link_info_t));
kn_link->transport_link = info;
info->link = kn_link;
memmove(&info->dst_address, &kn_link->dst_addr, sizeof(struct sockaddr_storage));
info->connect_sock = -1;
info->listener = sctp_link_listener_start(knet_h, kn_link);
if (!info->listener) {
savederrno = errno;
err = -1;
goto exit_error;
}
if (kn_link->dynamic == KNET_LINK_STATIC) {
if (_create_connect_socket(knet_h, kn_link) < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
kn_link->outsock = info->connect_sock;
}
- knet_list_add(&info->list, &handle_info->connect_links_list);
+ qb_list_add(&info->list, &handle_info->connect_links_list);
exit_error:
if (err) {
if (info) {
if (info->connect_sock >= 0) {
close(info->connect_sock);
}
if (info->listener) {
sctp_link_listener_stop(knet_h, kn_link);
}
kn_link->transport_link = NULL;
free(info);
}
}
errno = savederrno;
return err;
}
/*
* called with global wrlock
*/
int sctp_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
sctp_connect_link_info_t *info;
if (!kn_link) {
errno = EINVAL;
return -1;
}
info = kn_link->transport_link;
if (!info) {
errno = EINVAL;
return -1;
}
if ((sctp_link_listener_stop(knet_h, kn_link) <0) && (errno != EBUSY)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to remove listener transport: %s",
strerror(savederrno));
goto exit_error;
}
if (_close_connect_socket(knet_h, kn_link) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to close connected socket: %s",
strerror(savederrno));
goto exit_error;
}
- knet_list_del(&info->list);
+ qb_list_del(&info->list);
free(info);
kn_link->transport_link = NULL;
exit_error:
errno = savederrno;
return err;
}
/*
* transport_free and transport_init are
* called only from knet_handle_new and knet_handle_free.
* all resources (hosts/links) should have been already freed at this point
* and they are called in a write locked context, hence they
* don't need their own locking.
*/
int sctp_transport_free(knet_handle_t knet_h)
{
sctp_handle_info_t *handle_info;
void *thread_status;
struct epoll_event ev;
if (!knet_h->transports[KNET_TRANSPORT_SCTP]) {
errno = EINVAL;
return -1;
}
handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
/*
* keep it here while we debug list usage and such
*/
- if (!knet_list_empty(&handle_info->listen_links_list)) {
+ if (!qb_list_empty(&handle_info->listen_links_list)) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Internal error. listen links list is not empty");
}
- if (!knet_list_empty(&handle_info->connect_links_list)) {
+ if (!qb_list_empty(&handle_info->connect_links_list)) {
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Internal error. connect links list is not empty");
}
if (handle_info->listen_thread) {
pthread_cancel(handle_info->listen_thread);
pthread_join(handle_info->listen_thread, &thread_status);
}
if (handle_info->connect_thread) {
pthread_cancel(handle_info->connect_thread);
pthread_join(handle_info->connect_thread, &thread_status);
}
if (handle_info->listensockfd[0] >= 0) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = handle_info->listensockfd[0];
epoll_ctl(handle_info->listen_epollfd, EPOLL_CTL_DEL, handle_info->listensockfd[0], &ev);
}
if (handle_info->connectsockfd[0] >= 0) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = handle_info->connectsockfd[0];
epoll_ctl(handle_info->connect_epollfd, EPOLL_CTL_DEL, handle_info->connectsockfd[0], &ev);
}
_close_socketpair(knet_h, handle_info->connectsockfd);
_close_socketpair(knet_h, handle_info->listensockfd);
if (handle_info->listen_epollfd >= 0) {
close(handle_info->listen_epollfd);
}
if (handle_info->connect_epollfd >= 0) {
close(handle_info->connect_epollfd);
}
free(handle_info->event_subscribe_buffer);
free(handle_info);
knet_h->transports[KNET_TRANSPORT_SCTP] = NULL;
return 0;
}
static int _sctp_subscribe_init(knet_handle_t knet_h)
{
int test_socket, savederrno;
sctp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_SCTP];
char dummy_events[100];
struct sctp_event_subscribe *events;
/* Below we set the first 6 fields of this expanding struct.
* SCTP_EVENTS is deprecated, but SCTP_EVENT is not available
* on Linux; on the other hand, FreeBSD and old Linux does not
* accept small transfers, so we can't simply use this minimum
* everywhere. Thus we query and store the native size. */
const unsigned int subscribe_min = 6;
test_socket = socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP);
if (test_socket < 0) {
if (errno == EPROTONOSUPPORT) {
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "SCTP not supported, skipping initialization");
return 0;
}
savederrno = errno;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to create test socket: %s",
strerror(savederrno));
return savederrno;
}
handle_info->event_subscribe_kernel_size = sizeof dummy_events;
if (getsockopt(test_socket, IPPROTO_SCTP, SCTP_EVENTS, &dummy_events,
&handle_info->event_subscribe_kernel_size)) {
close(test_socket);
savederrno = errno;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to query kernel size of struct sctp_event_subscribe: %s",
strerror(savederrno));
return savederrno;
}
close(test_socket);
if (handle_info->event_subscribe_kernel_size < subscribe_min) {
savederrno = ERANGE;
log_err(knet_h, KNET_SUB_TRANSP_SCTP,
"No kernel support for the necessary notifications: struct sctp_event_subscribe is %u bytes, %u needed",
handle_info->event_subscribe_kernel_size, subscribe_min);
return savederrno;
}
events = malloc(handle_info->event_subscribe_kernel_size);
if (!events) {
savederrno = errno;
log_err(knet_h, KNET_SUB_TRANSP_SCTP,
"Failed to allocate event subscribe buffer: %s", strerror(savederrno));
return savederrno;
}
memset(events, 0, handle_info->event_subscribe_kernel_size);
events->sctp_data_io_event = 1;
events->sctp_association_event = 1;
events->sctp_address_event = 1;
events->sctp_send_failure_event = 1;
events->sctp_peer_error_event = 1;
events->sctp_shutdown_event = 1;
handle_info->event_subscribe_buffer = (char *)events;
log_debug(knet_h, KNET_SUB_TRANSP_SCTP, "Size of struct sctp_event_subscribe is %u in kernel, %zu in user space",
handle_info->event_subscribe_kernel_size, sizeof(struct sctp_event_subscribe));
return 0;
}
int sctp_transport_init(knet_handle_t knet_h)
{
int err = 0, savederrno = 0;
sctp_handle_info_t *handle_info;
struct epoll_event ev;
if (knet_h->transports[KNET_TRANSPORT_SCTP]) {
errno = EEXIST;
return -1;
}
handle_info = malloc(sizeof(sctp_handle_info_t));
if (!handle_info) {
return -1;
}
memset(handle_info, 0,sizeof(sctp_handle_info_t));
knet_h->transports[KNET_TRANSPORT_SCTP] = handle_info;
savederrno = _sctp_subscribe_init(knet_h);
if (savederrno) {
err = -1;
goto exit_fail;
}
- knet_list_init(&handle_info->listen_links_list);
- knet_list_init(&handle_info->connect_links_list);
+ qb_list_init(&handle_info->listen_links_list);
+ qb_list_init(&handle_info->connect_links_list);
handle_info->listen_epollfd = epoll_create(KNET_EPOLL_MAX_EVENTS + 1);
if (handle_info->listen_epollfd < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to create epoll listen fd: %s",
strerror(savederrno));
goto exit_fail;
}
if (_fdset_cloexec(handle_info->listen_epollfd)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set CLOEXEC on listen_epollfd: %s",
strerror(savederrno));
goto exit_fail;
}
handle_info->connect_epollfd = epoll_create(KNET_EPOLL_MAX_EVENTS + 1);
if (handle_info->connect_epollfd < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to create epoll connect fd: %s",
strerror(savederrno));
goto exit_fail;
}
if (_fdset_cloexec(handle_info->connect_epollfd)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to set CLOEXEC on connect_epollfd: %s",
strerror(savederrno));
goto exit_fail;
}
if (_init_socketpair(knet_h, handle_info->connectsockfd) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to init connect socketpair: %s",
strerror(savederrno));
goto exit_fail;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = handle_info->connectsockfd[0];
if (epoll_ctl(handle_info->connect_epollfd, EPOLL_CTL_ADD, handle_info->connectsockfd[0], &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to add connectsockfd[0] to connect epoll pool: %s",
strerror(savederrno));
goto exit_fail;
}
if (_init_socketpair(knet_h, handle_info->listensockfd) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to init listen socketpair: %s",
strerror(savederrno));
goto exit_fail;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = handle_info->listensockfd[0];
if (epoll_ctl(handle_info->listen_epollfd, EPOLL_CTL_ADD, handle_info->listensockfd[0], &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to add listensockfd[0] to listen epoll pool: %s",
strerror(savederrno));
goto exit_fail;
}
/*
* Start connect & listener threads
*/
set_thread_status(knet_h, KNET_THREAD_SCTP_LISTEN, KNET_THREAD_REGISTERED);
savederrno = pthread_create(&handle_info->listen_thread, 0, _sctp_listen_thread, (void *) knet_h);
if (savederrno) {
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to start sctp listen thread: %s",
strerror(savederrno));
goto exit_fail;
}
set_thread_status(knet_h, KNET_THREAD_SCTP_CONN, KNET_THREAD_REGISTERED);
savederrno = pthread_create(&handle_info->connect_thread, 0, _sctp_connect_thread, (void *) knet_h);
if (savederrno) {
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_SCTP, "Unable to start sctp connect thread: %s",
strerror(savederrno));
goto exit_fail;
}
exit_fail:
if (err < 0) {
sctp_transport_free(knet_h);
}
errno = savederrno;
return err;
}
int sctp_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link)
{
kn_link->outsock = sockfd;
kn_link->status.dynconnected = 1;
kn_link->transport_connected = 1;
return 0;
}
int sctp_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link)
{
sctp_connect_link_info_t *this_link_info = kn_link->transport_link;
sctp_listen_link_info_t *info = this_link_info->listener;
return info->listen_sock;
}
#endif
diff --git a/libknet/transport_sctp.h b/libknet/transport_sctp.h
index bbf7a789..3cd9740d 100644
--- a/libknet/transport_sctp.h
+++ b/libknet/transport_sctp.h
@@ -1,38 +1,39 @@
/*
* Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include "internals.h"
#ifndef __KNET_TRANSPORT_SCTP_H__
#define __KNET_TRANSPORT_SCTP_H__
/*
* https://en.wikipedia.org/wiki/SCTP_packet_structure
*/
#define KNET_PMTUD_SCTP_OVERHEAD_COMMON 12
#define KNET_PMTUD_SCTP_OVERHEAD_DATA_CHUNK 16
#define KNET_PMTUD_SCTP_OVERHEAD KNET_PMTUD_SCTP_OVERHEAD_COMMON + KNET_PMTUD_SCTP_OVERHEAD_DATA_CHUNK
#ifdef HAVE_NETINET_SCTP_H
int sctp_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link);
int sctp_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link);
int sctp_transport_free(knet_handle_t knet_h);
int sctp_transport_init(knet_handle_t knet_h);
int sctp_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int sctp_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int sctp_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg);
int sctp_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link);
int sctp_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link);
+int sctp_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link);
#endif
#endif
diff --git a/libknet/transport_udp.c b/libknet/transport_udp.c
index 2b3e4327..fe6c0968 100644
--- a/libknet/transport_udp.c
+++ b/libknet/transport_udp.c
@@ -1,439 +1,445 @@
/*
* Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
*
* Author: Christine Caulfield <ccaulfie@redhat.com>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#if defined (IP_RECVERR) || defined (IPV6_RECVERR)
#include <linux/errqueue.h>
#endif
#include "libknet.h"
#include "compat.h"
#include "host.h"
#include "link.h"
#include "logging.h"
#include "common.h"
+#include "netutils.h"
#include "transport_common.h"
#include "transport_udp.h"
#include "transports.h"
#include "threads_common.h"
typedef struct udp_handle_info {
- struct knet_list_head links_list;
+ struct qb_list_head links_list;
} udp_handle_info_t;
typedef struct udp_link_info {
- struct knet_list_head list;
+ struct qb_list_head list;
struct sockaddr_storage local_address;
int socket_fd;
int on_epoll;
} udp_link_info_t;
int udp_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
int sock = -1;
struct epoll_event ev;
udp_link_info_t *info;
udp_handle_info_t *handle_info = knet_h->transports[KNET_TRANSPORT_UDP];
#if defined (IP_RECVERR) || defined (IPV6_RECVERR)
int value;
#endif
/*
* Only allocate a new link if the local address is different
*/
- knet_list_for_each_entry(info, &handle_info->links_list, list) {
+ qb_list_for_each_entry(info, &handle_info->links_list, list) {
if (memcmp(&info->local_address, &kn_link->src_addr, sizeof(struct sockaddr_storage)) == 0) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Re-using existing UDP socket for new link");
kn_link->outsock = info->socket_fd;
kn_link->transport_link = info;
kn_link->transport_connected = 1;
return 0;
}
}
info = malloc(sizeof(udp_link_info_t));
if (!info) {
err = -1;
goto exit_error;
}
memset(info, 0, sizeof(udp_link_info_t));
sock = socket(kn_link->src_addr.ss_family, SOCK_DGRAM, 0);
if (sock < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to create listener socket: %s",
strerror(savederrno));
goto exit_error;
}
if (_configure_transport_socket(knet_h, sock, &kn_link->src_addr, kn_link->flags, "UDP") < 0) {
savederrno = errno;
err = -1;
goto exit_error;
}
#ifdef IP_RECVERR
if (kn_link->src_addr.ss_family == AF_INET) {
value = 1;
if (setsockopt(sock, SOL_IP, IP_RECVERR, &value, sizeof(value)) <0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to set RECVERR on socket: %s",
strerror(savederrno));
goto exit_error;
}
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "IP_RECVERR enabled on socket: %i", sock);
}
#else
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "IP_RECVERR not available in this build/platform");
#endif
#ifdef IPV6_RECVERR
if (kn_link->src_addr.ss_family == AF_INET6) {
value = 1;
if (setsockopt(sock, SOL_IPV6, IPV6_RECVERR, &value, sizeof(value)) <0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to set RECVERR on socket: %s",
strerror(savederrno));
goto exit_error;
}
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "IPV6_RECVERR enabled on socket: %i", sock);
}
#else
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "IPV6_RECVERR not available in this build/platform");
#endif
if (bind(sock, (struct sockaddr *)&kn_link->src_addr, sockaddr_len(&kn_link->src_addr))) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to bind listener socket: %s",
strerror(savederrno));
goto exit_error;
}
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = sock;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_ADD, sock, &ev)) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to add listener to epoll pool: %s",
strerror(savederrno));
goto exit_error;
}
info->on_epoll = 1;
if (_set_fd_tracker(knet_h, sock, KNET_TRANSPORT_UDP, 0, info) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
memmove(&info->local_address, &kn_link->src_addr, sizeof(struct sockaddr_storage));
info->socket_fd = sock;
- knet_list_add(&info->list, &handle_info->links_list);
+ qb_list_add(&info->list, &handle_info->links_list);
kn_link->outsock = sock;
kn_link->transport_link = info;
kn_link->transport_connected = 1;
exit_error:
if (err) {
if (info) {
if (info->on_epoll) {
epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_DEL, sock, &ev);
}
free(info);
}
if (sock >= 0) {
close(sock);
}
}
errno = savederrno;
return err;
}
int udp_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
int err = 0, savederrno = 0;
int found = 0;
struct knet_host *host;
int link_idx;
udp_link_info_t *info = kn_link->transport_link;
struct epoll_event ev;
for (host = knet_h->host_head; host != NULL; host = host->next) {
for (link_idx = 0; link_idx < KNET_MAX_LINK; link_idx++) {
if (&host->link[link_idx] == kn_link)
continue;
if (host->link[link_idx].transport_link == info) {
found = 1;
break;
}
}
}
if (found) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "UDP socket %d still in use", info->socket_fd);
savederrno = EBUSY;
err = -1;
goto exit_error;
}
if (info->on_epoll) {
memset(&ev, 0, sizeof(struct epoll_event));
ev.events = EPOLLIN;
ev.data.fd = info->socket_fd;
if (epoll_ctl(knet_h->recv_from_links_epollfd, EPOLL_CTL_DEL, info->socket_fd, &ev) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to remove UDP socket from epoll poll: %s",
strerror(errno));
goto exit_error;
}
info->on_epoll = 0;
}
if (_set_fd_tracker(knet_h, info->socket_fd, KNET_MAX_TRANSPORTS, 0, NULL) < 0) {
savederrno = errno;
err = -1;
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Unable to set fd tracker: %s",
strerror(savederrno));
goto exit_error;
}
close(info->socket_fd);
- knet_list_del(&info->list);
+ qb_list_del(&info->list);
free(kn_link->transport_link);
exit_error:
errno = savederrno;
return err;
}
int udp_transport_free(knet_handle_t knet_h)
{
udp_handle_info_t *handle_info;
if (!knet_h->transports[KNET_TRANSPORT_UDP]) {
errno = EINVAL;
return -1;
}
handle_info = knet_h->transports[KNET_TRANSPORT_UDP];
/*
* keep it here while we debug list usage and such
*/
- if (!knet_list_empty(&handle_info->links_list)) {
+ if (!qb_list_empty(&handle_info->links_list)) {
log_err(knet_h, KNET_SUB_TRANSP_UDP, "Internal error. handle list is not empty");
return -1;
}
free(handle_info);
knet_h->transports[KNET_TRANSPORT_UDP] = NULL;
return 0;
}
int udp_transport_init(knet_handle_t knet_h)
{
udp_handle_info_t *handle_info;
if (knet_h->transports[KNET_TRANSPORT_UDP]) {
errno = EEXIST;
return -1;
}
handle_info = malloc(sizeof(udp_handle_info_t));
if (!handle_info) {
return -1;
}
memset(handle_info, 0, sizeof(udp_handle_info_t));
knet_h->transports[KNET_TRANSPORT_UDP] = handle_info;
- knet_list_init(&handle_info->links_list);
+ qb_list_init(&handle_info->links_list);
return 0;
}
#if defined (IP_RECVERR) || defined (IPV6_RECVERR)
static int read_errs_from_sock(knet_handle_t knet_h, int sockfd)
{
int err = 0, savederrno = 0;
int got_err = 0;
char buffer[1024];
struct iovec iov;
struct msghdr msg;
struct cmsghdr *cmsg;
struct sock_extended_err *sock_err;
struct icmphdr icmph;
struct sockaddr_storage remote;
struct sockaddr_storage *origin;
char addr_str[KNET_MAX_HOST_LEN];
char port_str[KNET_MAX_PORT_LEN];
char addr_remote_str[KNET_MAX_HOST_LEN];
char port_remote_str[KNET_MAX_PORT_LEN];
iov.iov_base = &icmph;
iov.iov_len = sizeof(icmph);
msg.msg_name = (void*)&remote;
msg.msg_namelen = sizeof(remote);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_flags = 0;
msg.msg_control = buffer;
msg.msg_controllen = sizeof(buffer);
for (;;) {
err = recvmsg(sockfd, &msg, MSG_ERRQUEUE);
savederrno = errno;
if (err < 0) {
if (!got_err) {
errno = savederrno;
return -1;
} else {
return 0;
}
}
got_err = 1;
for (cmsg = CMSG_FIRSTHDR(&msg);cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
if (((cmsg->cmsg_level == SOL_IP) && (cmsg->cmsg_type == IP_RECVERR)) ||
((cmsg->cmsg_level == SOL_IPV6 && (cmsg->cmsg_type == IPV6_RECVERR)))) {
sock_err = (struct sock_extended_err*)(void *)CMSG_DATA(cmsg);
if (sock_err) {
switch (sock_err->ee_origin) {
case SO_EE_ORIGIN_NONE: /* no origin */
case SO_EE_ORIGIN_LOCAL: /* local source (EMSGSIZE) */
if (sock_err->ee_errno == EMSGSIZE) {
if (pthread_mutex_lock(&knet_h->kmtu_mutex) != 0) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Unable to get mutex lock");
knet_h->kernel_mtu = 0;
break;
} else {
knet_h->kernel_mtu = sock_err->ee_info;
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "detected kernel MTU: %u", knet_h->kernel_mtu);
pthread_mutex_unlock(&knet_h->kmtu_mutex);
}
force_pmtud_run(knet_h, KNET_SUB_TRANSP_UDP, 0);
}
/*
* those errors are way too noisy
*/
break;
case SO_EE_ORIGIN_ICMP: /* ICMP */
case SO_EE_ORIGIN_ICMP6: /* ICMP6 */
origin = (struct sockaddr_storage *)(void *)SO_EE_OFFENDER(sock_err);
if (knet_addrtostr(origin, sizeof(*origin),
addr_str, KNET_MAX_HOST_LEN,
port_str, KNET_MAX_PORT_LEN) < 0) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Received ICMP error from unknown source: %s", strerror(sock_err->ee_errno));
} else {
if (knet_addrtostr(&remote, sizeof(remote),
addr_remote_str, KNET_MAX_HOST_LEN,
port_remote_str, KNET_MAX_PORT_LEN) < 0) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Received ICMP error from %s: %s destination unknown", addr_str, strerror(sock_err->ee_errno));
} else {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Received ICMP error from %s: %s %s", addr_str, strerror(sock_err->ee_errno), addr_remote_str);
}
}
break;
}
} else {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "No data in MSG_ERRQUEUE");
}
}
}
}
}
#else
static int read_errs_from_sock(knet_handle_t knet_h, int sockfd)
{
return 0;
}
#endif
int udp_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
if (recv_errno == EAGAIN) {
read_errs_from_sock(knet_h, sockfd);
}
return 0;
}
int udp_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno)
{
if (recv_err < 0) {
if (recv_errno == EMSGSIZE) {
read_errs_from_sock(knet_h, sockfd);
return 0;
}
if ((recv_errno == EINVAL) || (recv_errno == EPERM) ||
(recv_errno == ENETUNREACH) || (recv_errno == ENETDOWN)) {
#ifdef DEBUG
if ((recv_errno == ENETUNREACH) || (recv_errno == ENETDOWN)) {
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Sock: %d is unreachable.", sockfd);
}
#endif
return -1;
}
if ((recv_errno == ENOBUFS) || (recv_errno == EAGAIN)) {
#ifdef DEBUG
log_debug(knet_h, KNET_SUB_TRANSP_UDP, "Sock: %d is overloaded. Slowing TX down", sockfd);
#endif
usleep(KNET_THREADS_TIMERES / 16);
} else {
read_errs_from_sock(knet_h, sockfd);
}
return 1;
}
return 0;
}
int udp_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg)
{
if (msg->msg_len == 0)
return KNET_TRANSPORT_RX_NOT_DATA_CONTINUE;
return KNET_TRANSPORT_RX_IS_DATA;
}
int udp_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link)
{
kn_link->status.dynconnected = 1;
return 0;
}
int udp_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link)
{
return kn_link->outsock;
}
+
+int udp_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link)
+{
+ return 0;
+}
diff --git a/libknet/transport_udp.h b/libknet/transport_udp.h
index 8e3ea5f6..e2aa2dcd 100644
--- a/libknet/transport_udp.h
+++ b/libknet/transport_udp.h
@@ -1,28 +1,29 @@
/*
* Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include "internals.h"
#ifndef __KNET_TRANSPORT_UDP_H__
#define __KNET_TRANSPORT_UDP_H__
#define KNET_PMTUD_UDP_OVERHEAD 8
int udp_transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link);
int udp_transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link);
int udp_transport_free(knet_handle_t knet_h);
int udp_transport_init(knet_handle_t knet_h);
int udp_transport_rx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int udp_transport_tx_sock_error(knet_handle_t knet_h, int sockfd, int recv_err, int recv_errno);
int udp_transport_rx_is_data(knet_handle_t knet_h, int sockfd, struct knet_mmsghdr *msg);
int udp_transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link);
int udp_transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link);
+int udp_transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link);
#endif
diff --git a/libknet/transports.c b/libknet/transports.c
index e6457238..1ec0aafc 100644
--- a/libknet/transports.c
+++ b/libknet/transports.c
@@ -1,292 +1,297 @@
/*
* Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
*
* Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#include "config.h"
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include <sys/types.h>
#include <sys/socket.h>
#include "libknet.h"
#include "compat.h"
#include "host.h"
#include "link.h"
#include "logging.h"
#include "common.h"
#include "transports.h"
#include "transport_loopback.h"
#include "transport_udp.h"
#include "transport_sctp.h"
#include "threads_common.h"
-#define empty_module 0, -1, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL },
+#define empty_module 0, -1, 0, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL },
static knet_transport_ops_t transport_modules_cmd[KNET_MAX_TRANSPORTS] = {
- { "LOOPBACK", KNET_TRANSPORT_LOOPBACK, 1, TRANSPORT_PROTO_LOOPBACK, USE_NO_ACL, TRANSPORT_PROTO_NOT_CONNECTION_ORIENTED, KNET_PMTUD_LOOPBACK_OVERHEAD, loopback_transport_init, loopback_transport_free, loopback_transport_link_set_config, loopback_transport_link_clear_config, loopback_transport_link_dyn_connect, loopback_transport_link_get_acl_fd, loopback_transport_rx_sock_error, loopback_transport_tx_sock_error, loopback_transport_rx_is_data },
- { "UDP", KNET_TRANSPORT_UDP, 1, TRANSPORT_PROTO_IP_PROTO, USE_GENERIC_ACL, TRANSPORT_PROTO_NOT_CONNECTION_ORIENTED, KNET_PMTUD_UDP_OVERHEAD, udp_transport_init, udp_transport_free, udp_transport_link_set_config, udp_transport_link_clear_config, udp_transport_link_dyn_connect, udp_transport_link_get_acl_fd, udp_transport_rx_sock_error, udp_transport_tx_sock_error, udp_transport_rx_is_data },
+ { "LOOPBACK", KNET_TRANSPORT_LOOPBACK, 1, TRANSPORT_PROTO_LOOPBACK, USE_NO_ACL, TRANSPORT_PROTO_NOT_CONNECTION_ORIENTED, KNET_PMTUD_LOOPBACK_OVERHEAD, loopback_transport_init, loopback_transport_free, loopback_transport_link_set_config, loopback_transport_link_clear_config, loopback_transport_link_dyn_connect, loopback_transport_link_get_acl_fd, loopback_transport_rx_sock_error, loopback_transport_tx_sock_error, loopback_transport_rx_is_data, loopback_transport_link_is_down },
+ { "UDP", KNET_TRANSPORT_UDP, 1, TRANSPORT_PROTO_IP_PROTO, USE_GENERIC_ACL, TRANSPORT_PROTO_NOT_CONNECTION_ORIENTED, KNET_PMTUD_UDP_OVERHEAD, udp_transport_init, udp_transport_free, udp_transport_link_set_config, udp_transport_link_clear_config, udp_transport_link_dyn_connect, udp_transport_link_get_acl_fd, udp_transport_rx_sock_error, udp_transport_tx_sock_error, udp_transport_rx_is_data, udp_transport_link_is_down },
{ "SCTP", KNET_TRANSPORT_SCTP,
#ifdef HAVE_NETINET_SCTP_H
- 1, TRANSPORT_PROTO_IP_PROTO, USE_PROTO_ACL, TRANSPORT_PROTO_IS_CONNECTION_ORIENTED, KNET_PMTUD_SCTP_OVERHEAD, sctp_transport_init, sctp_transport_free, sctp_transport_link_set_config, sctp_transport_link_clear_config, sctp_transport_link_dyn_connect, sctp_transport_link_get_acl_fd, sctp_transport_rx_sock_error, sctp_transport_tx_sock_error, sctp_transport_rx_is_data },
+ 1, TRANSPORT_PROTO_IP_PROTO, USE_PROTO_ACL, TRANSPORT_PROTO_IS_CONNECTION_ORIENTED, KNET_PMTUD_SCTP_OVERHEAD, sctp_transport_init, sctp_transport_free, sctp_transport_link_set_config, sctp_transport_link_clear_config, sctp_transport_link_dyn_connect, sctp_transport_link_get_acl_fd, sctp_transport_rx_sock_error, sctp_transport_tx_sock_error, sctp_transport_rx_is_data, sctp_transport_link_is_down },
#else
empty_module
#endif
{ NULL, KNET_MAX_TRANSPORTS, empty_module
};
/*
* transport wrappers
*/
int start_all_transports(knet_handle_t knet_h)
{
int idx = 0, savederrno = 0, err = 0;
while (transport_modules_cmd[idx].transport_name != NULL) {
if (transport_modules_cmd[idx].built_in) {
if (transport_modules_cmd[idx].transport_init(knet_h) < 0) {
savederrno = errno;
log_err(knet_h, KNET_SUB_HANDLE,
"Failed to allocate transport handle for %s: %s",
transport_modules_cmd[idx].transport_name,
strerror(savederrno));
err = -1;
goto out;
}
}
idx++;
}
out:
errno = savederrno;
return err;
}
void stop_all_transports(knet_handle_t knet_h)
{
int idx = 0;
while (transport_modules_cmd[idx].transport_name != NULL) {
if (transport_modules_cmd[idx].built_in) {
transport_modules_cmd[idx].transport_free(knet_h);
}
idx++;
}
}
int transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link, uint8_t transport)
{
if (!transport_modules_cmd[transport].built_in) {
errno = EINVAL;
return -1;
}
kn_link->transport_connected = 0;
kn_link->transport = transport;
kn_link->proto_overhead = transport_modules_cmd[transport].transport_mtu_overhead;
return transport_modules_cmd[transport].transport_link_set_config(knet_h, kn_link);
}
int transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link)
{
return transport_modules_cmd[kn_link->transport].transport_link_clear_config(knet_h, kn_link);
}
int transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link)
{
return transport_modules_cmd[kn_link->transport].transport_link_dyn_connect(knet_h, sockfd, kn_link);
}
int transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link)
{
return transport_modules_cmd[kn_link->transport].transport_link_get_acl_fd(knet_h, kn_link);
}
int transport_rx_sock_error(knet_handle_t knet_h, uint8_t transport, int sockfd, int recv_err, int recv_errno)
{
return transport_modules_cmd[transport].transport_rx_sock_error(knet_h, sockfd, recv_err, recv_errno);
}
int transport_tx_sock_error(knet_handle_t knet_h, uint8_t transport, int sockfd, int recv_err, int recv_errno)
{
return transport_modules_cmd[transport].transport_tx_sock_error(knet_h, sockfd, recv_err, recv_errno);
}
int transport_rx_is_data(knet_handle_t knet_h, uint8_t transport, int sockfd, struct knet_mmsghdr *msg)
{
return transport_modules_cmd[transport].transport_rx_is_data(knet_h, sockfd, msg);
}
int transport_get_proto(knet_handle_t knet_h, uint8_t transport)
{
return transport_modules_cmd[transport].transport_protocol;
}
int transport_get_acl_type(knet_handle_t knet_h, uint8_t transport)
{
return transport_modules_cmd[transport].transport_acl_type;
}
int transport_get_connection_oriented(knet_handle_t knet_h, uint8_t transport)
{
return transport_modules_cmd[transport].transport_is_connection_oriented;
}
+int transport_link_is_down(knet_handle_t knet_h, struct knet_link *kn_link)
+{
+ return transport_modules_cmd[kn_link->transport].transport_link_is_down(knet_h, kn_link);
+}
+
/*
* public api
*/
int knet_get_transport_list(struct knet_transport_info *transport_list,
size_t *transport_list_entries)
{
int err = 0;
int idx = 0;
int outidx = 0;
if (!transport_list_entries) {
errno = EINVAL;
return -1;
}
while (transport_modules_cmd[idx].transport_name != NULL) {
if (transport_modules_cmd[idx].built_in) {
if (transport_list) {
transport_list[outidx].name = transport_modules_cmd[idx].transport_name;
transport_list[outidx].id = transport_modules_cmd[idx].transport_id;
}
outidx++;
}
idx++;
}
*transport_list_entries = outidx;
if (!err)
errno = 0;
return err;
}
const char *knet_get_transport_name_by_id(uint8_t transport)
{
int savederrno = 0;
const char *name = NULL;
if (transport == KNET_MAX_TRANSPORTS) {
errno = EINVAL;
return name;
}
if ((transport_modules_cmd[transport].transport_name) &&
(transport_modules_cmd[transport].built_in)) {
name = transport_modules_cmd[transport].transport_name;
} else {
savederrno = ENOENT;
}
errno = name ? 0 : savederrno;
return name;
}
uint8_t knet_get_transport_id_by_name(const char *name)
{
int savederrno = 0;
uint8_t err = KNET_MAX_TRANSPORTS;
int i, found;
if (!name) {
errno = EINVAL;
return err;
}
i = 0;
found = 0;
while (transport_modules_cmd[i].transport_name != NULL) {
if (transport_modules_cmd[i].built_in) {
if (!strcmp(transport_modules_cmd[i].transport_name, name)) {
err = transport_modules_cmd[i].transport_id;
found = 1;
break;
}
}
i++;
}
if (!found) {
savederrno = EINVAL;
}
errno = err == KNET_MAX_TRANSPORTS ? savederrno : 0;
return err;
}
int knet_handle_set_transport_reconnect_interval(knet_handle_t knet_h, uint32_t msecs)
{
int savederrno = 0;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!msecs) {
errno = EINVAL;
return -1;
}
if (msecs < 1000) {
log_warn(knet_h, KNET_SUB_HANDLE, "reconnect internval below 1 sec (%u msecs) might be too aggressive", msecs);
}
if (msecs > 60000) {
log_warn(knet_h, KNET_SUB_HANDLE, "reconnect internval above 1 minute (%u msecs) could cause long delays in network convergiance", msecs);
}
savederrno = get_global_wrlock(knet_h);
if (savederrno) {
log_err(knet_h, KNET_SUB_HANDLE, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
knet_h->reconnect_int = msecs;
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = 0;
return 0;
}
int knet_handle_get_transport_reconnect_interval(knet_handle_t knet_h, uint32_t *msecs)
{
int savederrno = 0;
if (!knet_h) {
errno = EINVAL;
return -1;
}
if (!msecs) {
errno = EINVAL;
return -1;
}
savederrno = pthread_rwlock_rdlock(&knet_h->global_rwlock);
if (savederrno) {
log_err(knet_h, KNET_SUB_HANDLE, "Unable to get read lock: %s",
strerror(savederrno));
errno = savederrno;
return -1;
}
*msecs = knet_h->reconnect_int;
pthread_rwlock_unlock(&knet_h->global_rwlock);
errno = 0;
return 0;
}
diff --git a/libknet/transports.h b/libknet/transports.h
index 763fce37..51063864 100644
--- a/libknet/transports.h
+++ b/libknet/transports.h
@@ -1,33 +1,34 @@
/*
* Copyright (C) 2016-2020 Red Hat, Inc. All rights reserved.
*
* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
*
* This software licensed under LGPL-2.0+
*/
#ifndef __KNET_TRANSPORTS_H__
#define __KNET_TRANSPORTS_H__
#define KNET_TRANSPORT_RX_ERROR -1
#define KNET_TRANSPORT_RX_NOT_DATA_CONTINUE 0
#define KNET_TRANSPORT_RX_NOT_DATA_STOP 1
#define KNET_TRANSPORT_RX_IS_DATA 2
#define KNET_TRANSPORT_RX_OOB_DATA_CONTINUE 3
#define KNET_TRANSPORT_RX_OOB_DATA_STOP 4
int start_all_transports(knet_handle_t knet_h);
void stop_all_transports(knet_handle_t knet_h);
int transport_link_set_config(knet_handle_t knet_h, struct knet_link *kn_link, uint8_t transport);
int transport_link_clear_config(knet_handle_t knet_h, struct knet_link *kn_link);
int transport_link_dyn_connect(knet_handle_t knet_h, int sockfd, struct knet_link *kn_link);
int transport_link_get_acl_fd(knet_handle_t knet_h, struct knet_link *kn_link);
int transport_rx_sock_error(knet_handle_t knet_h, uint8_t transport, int sockfd, int recv_err, int recv_errno);
int transport_tx_sock_error(knet_handle_t knet_h, uint8_t transport, int sockfd, int recv_err, int recv_errno);
int transport_rx_is_data(knet_handle_t knet_h, uint8_t transport, int sockfd, struct knet_mmsghdr *msg);
int transport_get_proto(knet_handle_t knet_h, uint8_t transport);
int transport_get_acl_type(knet_handle_t knet_h, uint8_t transport);
int transport_get_connection_oriented(knet_handle_t knet_h, uint8_t transport);
+int transport_link_is_down(knet_handle_t knet_h, struct knet_link *link);
#endif
diff --git a/m4/pkg_check_var.m4 b/m4/pkg_check_var.m4
new file mode 100644
index 00000000..ae1bf222
--- /dev/null
+++ b/m4/pkg_check_var.m4
@@ -0,0 +1,14 @@
+# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
+# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+# -------------------------------------------
+# Retrieves the value of the pkg-config variable for the given module.
+
+m4_ifndef([PKG_CHECK_VAR],
+ [AC_DEFUN([PKG_CHECK_VAR],
+ [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+ AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
+ _PKG_CONFIG([$1], [variable="][$3]["], [$2])
+ AS_VAR_COPY([$1], [pkg_cv_][$1])
+ AS_VAR_IF([$1], [""], [$5], [$4])dnl
+ ])# PKG_CHECK_VAR
+])
diff --git a/man/Makefile.am b/man/Makefile.am
index b4454af5..f813b97d 100644
--- a/man/Makefile.am
+++ b/man/Makefile.am
@@ -1,160 +1,162 @@
#
# Copyright (C) 2017-2020 Red Hat, Inc. All rights reserved.
#
# Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
# Federico Simoncelli <fsimon@kronosnet.org>
#
# This software licensed under GPL-2.0+
#
MAINTAINERCLEANFILES = Makefile.in
include $(top_srcdir)/build-aux/check.mk
EXTRA_DIST = \
kronosnetd.8 knet-keygen.8 \
api-to-man-page-coverage
# Avoid Automake warnings about overriding these user variables.
# Programs in this directory are used during the build only.
AUTOMAKE_OPTIONS = -Wno-gnu
EXEEXT=$(BUILD_EXEEXT)
CC=$(CC_FOR_BUILD)
CFLAGS=$(CFLAGS_FOR_BUILD)
CPPFLAGS=$(CPPFLAGS_FOR_BUILD)
LDFLAGS=$(LDFLAGS_FOR_BUILD)
if BUILD_MAN
if BUILD_KRONOSNETD
man8_MANS = kronosnetd.8 knet-keygen.8
endif
+if BUILD_DOXYXML
noinst_PROGRAMS = doxyxml
doxyxml_SOURCES = doxyxml.c
doxyxml_CFLAGS = $(AM_CFLAGS) $(libqb_BUILD_CFLAGS) $(libxml_BUILD_CFLAGS)
doxyxml_LDADD = $(libqb_BUILD_LIBS) $(libxml_BUILD_LIBS)
+endif
knet_man3_MANS = \
knet_addrtostr.3 \
knet_handle_add_datafd.3 \
knet_handle_clear_stats.3 \
knet_handle_compress.3 \
knet_handle_crypto.3 \
knet_handle_enable_filter.3 \
knet_handle_enable_pmtud_notify.3 \
knet_handle_enable_sock_notify.3 \
knet_handle_free.3 \
knet_handle_get_channel.3 \
knet_get_compress_list.3 \
knet_get_crypto_list.3 \
knet_handle_get_datafd.3 \
knet_handle_get_stats.3 \
knet_get_transport_id_by_name.3 \
knet_get_transport_list.3 \
knet_get_transport_name_by_id.3 \
knet_handle_get_transport_reconnect_interval.3 \
knet_handle_new.3 \
knet_handle_new_ex.3 \
knet_handle_pmtud_get.3 \
knet_handle_pmtud_set.3 \
knet_handle_pmtud_getfreq.3 \
knet_handle_pmtud_setfreq.3 \
knet_handle_remove_datafd.3 \
knet_handle_setfwd.3 \
knet_handle_set_transport_reconnect_interval.3 \
knet_host_add.3 \
knet_host_enable_status_change_notify.3 \
knet_host_get_host_list.3 \
knet_host_get_id_by_host_name.3 \
knet_host_get_name_by_host_id.3 \
knet_host_get_policy.3 \
knet_host_get_status.3 \
knet_host_remove.3 \
knet_host_set_name.3 \
knet_host_set_policy.3 \
knet_link_clear_config.3 \
knet_link_get_config.3 \
knet_link_get_enable.3 \
knet_link_get_link_list.3 \
knet_link_get_ping_timers.3 \
knet_link_get_pong_count.3 \
knet_link_get_priority.3 \
knet_link_get_status.3 \
knet_link_set_config.3 \
knet_link_set_enable.3 \
knet_link_set_ping_timers.3 \
knet_link_set_pong_count.3 \
knet_link_set_priority.3 \
knet_log_get_loglevel.3 \
knet_log_get_loglevel_id.3 \
knet_log_get_loglevel_name.3 \
knet_log_get_subsystem_id.3 \
knet_log_get_subsystem_name.3 \
knet_log_set_loglevel.3 \
knet_recv.3 \
knet_send.3 \
knet_send_sync.3 \
knet_strtoaddr.3 \
knet_handle_enable_access_lists.3 \
knet_link_add_acl.3 \
knet_link_insert_acl.3 \
knet_link_rm_acl.3 \
knet_link_clear_acl.3
if BUILD_LIBNOZZLE
nozzle_man3_MANS = \
nozzle_add_ip.3 \
nozzle_close.3 \
nozzle_del_ip.3 \
nozzle_get_fd.3 \
nozzle_get_handle_by_name.3 \
nozzle_get_ips.3 \
nozzle_get_mac.3 \
nozzle_get_mtu.3 \
nozzle_get_name_by_handle.3 \
nozzle_open.3 \
nozzle_reset_mac.3 \
nozzle_reset_mtu.3 \
nozzle_run_updown.3 \
nozzle_set_down.3 \
nozzle_set_mac.3 \
nozzle_set_mtu.3 \
nozzle_set_up.3
endif
man3_MANS = $(knet_man3_MANS) $(nozzle_man3_MANS)
$(MANS): doxyfile-knet.stamp doxyfile-nozzle.stamp
doxyfile-knet.stamp: $(noinst_PROGRAMS) Doxyfile-knet $(top_srcdir)/libknet/libknet.h
$(DOXYGEN) Doxyfile-knet
- $(builddir)/doxyxml -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \
+ $(DOXYGEN2MAN) -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \
$$($(UTC_DATE_AT)$(SOURCE_EPOCH) +"-D %F -Y %Y") -d $(builddir)/xml-knet/ libknet_8h.xml
touch doxyfile-knet.stamp
doxyfile-nozzle.stamp: $(noinst_PROGRAMS) Doxyfile-nozzle $(top_srcdir)/libnozzle/libnozzle.h
if BUILD_LIBNOZZLE
$(DOXYGEN) Doxyfile-nozzle
- $(builddir)/doxyxml -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \
+ $(DOXYGEN2MAN) -m -P -o $(builddir) -s 3 -p @PACKAGE_NAME@ -H "Kronosnet Programmer's Manual" \
$$($(UTC_DATE_AT)$(SOURCE_EPOCH) +"-D %F -Y %Y") -d $(builddir)/xml-nozzle/ libnozzle_8h.xml
endif
touch doxyfile-nozzle.stamp
noinst_SCRIPTS = api-to-man-page-coverage
check-local: check-api-to-man-page-coverage-libknet check-api-to-man-page-coverage-libnozzle
check-api-to-man-page-coverage-libnozzle:
if BUILD_LIBNOZZLE
$(srcdir)/api-to-man-page-coverage $(top_srcdir) nozzle
endif
check-api-to-man-page-coverage-libknet:
$(srcdir)/api-to-man-page-coverage $(top_srcdir) knet
endif
clean-local:
- rm -rf doxyfile*.stamp xml* *.3
+ rm -rf doxyxml doxyfile*.stamp xml* *.3

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