From d923eba00cd540605f2eaae4f95ec8fbee4c39a6 Mon Sep 17 00:00:00 2001 From: laforge Date: Sun, 20 May 2001 13:51:46 +0000 Subject: included --with-log-ip-as-string option removed ./configure (run autoconf) autoconf now adds -I/usr/src/linux/include to CFLAGS --- AUTHORS | 1 + Changes | 8 + Makefile.in | 2 +- README | 85 +++ Rules.make.in | 17 +- TODO | 27 + configure | 1921 ------------------------------------------------- configure.in | 25 +- libipulog/Makefile.in | 2 +- mysql/ulogd_MYSQL.c | 32 +- 10 files changed, 181 insertions(+), 1939 deletions(-) create mode 100644 AUTHORS create mode 100644 README create mode 100644 TODO delete mode 100755 configure diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 0000000..dcc5998 --- /dev/null +++ b/AUTHORS @@ -0,0 +1 @@ +Harald Welte diff --git a/Changes b/Changes index 6b3308f..41bb41d 100644 --- a/Changes +++ b/Changes @@ -1,3 +1,11 @@ +Version 0.96 +- support for old mysql versions (Alexander Janssen) +- support for dotted-quad IP addresses in MySQL (Alexander Janssen) +- autoconf now checks for mysql .so libraries instead of static .a +- autoconf now includes /usr/src/linux/include, because most distros + now have a glibc-provided /usr/include/linux :( +- removed ./configure from CVS tree as it may cause inconsistencies + Version 0.95 - libipulog problems of 0.94 fixed - 1.0 now really soon diff --git a/Makefile.in b/Makefile.in index 05570e7..ec93a5b 100644 --- a/Makefile.in +++ b/Makefile.in @@ -27,7 +27,7 @@ clean: distclean: clean @for d in $(SUBDIRS); do if ! make -C $$d $@; then exit 1; fi; done - rm -f Makefile config.cache config.log config.status Rules.make + rm -f Makefile config.cache config.log config.status Rules.make configure install: all @for d in $(SUBDIRS); do if ! make -C $$d $@; then exit 1; fi; done diff --git a/README b/README new file mode 100644 index 0000000..d6d2017 --- /dev/null +++ b/README @@ -0,0 +1,85 @@ +Userspace logging facility for netfilter / linux 2.4 +$Id: README,v 1.3 2001/01/30 09:29:42 laforge Exp $ + +===> IDEA + +This packages is intended for passing packets from the kernel to userspace +to do some logging there. It should work like that: + +- Register a target called ULOG with netfilter +- if the target is hit: + - send the packet out using netlink multicast facility + - return NF_CONTINUE immediately + +New with ipt_ULOG 0.8 we can accumulate packets in userspace and send +them in small batches (1-50) to userspace. This reduces the amount of +expensive context switches. + +More than one logging daemon may listen to the netlink multicast address. + +===> CONTENTS + += Ulog library (libipulog.a) +Just a little library like libipq.a which provides a convenient way to +write userspace logging daemons. The functions provided are described +in the source code, a small demo program (ulog_test) is also included. + += ulogd daemon (ulogd) +A sophisticated logging daemon which uses libipulog. The daemon provides +an easy to use plugin interface to write additional packet interpreters and +output targets. Example plugins (interpreter: ip, tcp, icmp output: simple +logging to a file) are included. + +===> USAGE + +YOU MUST INSTALL THE ulog-patch from netfilter patch-o-matic FIRST !! + +Please go to the netfilter homepage (http://netfilter.gnumonks.org/) +and download the latest iptables package. There is a system called +patch-o-matic, which manages recent netfilter development, which has +not been included in the stock kernel yet. + +Just apply the ulog-patch from patch-o-matic (there is some documentation +included in the iptables package how to use patch-o-matic). + +Next you have to enable the kernel config option CONFIG_IP_NF_TARGET_ULOG in +the netfilter subsection of the network options. + +Then recompile the kernel or just recompile the netfilter modules using 'make +modules SUBDIRS=net/ipv4/netfilter'. Next step is installing the module using +'make modules_install' + +It is also a good idea to recompile and re-install the iptables package, +if you don't already have libipt_ULOG.so in /usr/local/lib/iptables or +/usr/lib/iptables + +Now You are ready to go. You may now insert logging rules to every chain. +To see the full syntax, type 'iptables -j ULOG -h' + +===> EXAMPLES + +At first a simple example, which passes every outgoing packet to the +userspace logging, using netlink multicast group 3. + +iptables -A OUTPUT -j ULOG --ulog-nlgroup 3 + +A more advanced one, passing all incoming tcp packets with destination +port 80 to the userspace logging daemon listening on netlink multicast +group 32. All packets get tagged with the ulog prefix "inp" + +iptables -A INPUT -j ULOG -p tcp --dport 80 --ulog-nlgroup 32 --ulog-prefix inp + +In the latest Version (0.2) I added another parameter (--ulog-cprange). +Using this parameter You are able to specify how much octets of the +packet should be copied from the kernel to userspace. +Setting --ulog-cprange to 0 does always copy the whole packet. Default is 0 + +===> COPYRIGHT + CREDITS + +The code is (C) 2000 by Harald Welte + +Thanks also to the valuable Contributions of Daniel Stone and Alexander +Janssen. + +Credits to Rusty Russel, James Morris, Marc Boucher and all the other +netfilter hackers. diff --git a/Rules.make.in b/Rules.make.in index 2fc77ea..1be476e 100644 --- a/Rules.make.in +++ b/Rules.make.in @@ -8,27 +8,28 @@ ULOGD_CONFIGFILE=@sysconfdir@/ulogd.conf ULOGD_LIB_PATH=@libdir@/ulogd +# Path of libipulog (from iptables) +LIBIPULOG=@top_srcdir@/libipulog +INCIPULOG=-I@top_srcdir@/libipulog/include +INCCONFFILE=-I@top_srcdir@/conffile + CC=@CC@ CFLAGS=@CFLAGS@ @CPPFLAGS@ -CFLAGS+=$(INCIPULOG) $(INCCONFFILE) CFLAGS+=-DULOGD_CONFIGFILE=\"$(ULOGD_CONFIGFILE)\" +# doesn't wor for subdirs +#CFLAGS+=$(INCIPULOG) $(INCCONFFILE) +CFLAGS+=-I/usr/src/linux/include #CFLAGS+=@DEFS@ #CFLAGS+=-g -DDEBUG -DDEBUG_MYSQL LIBS=@LIBS@ -# Path of libipulog (from iptables) -LIBIPULOG=@top_srcdir@/libipulog -#INCIPULOG=-I@top_srcdir@/libipulog/include - -#INCCONFFILE=-I@top_srcdir@/conffile - # Names of the plugins to be compiled ULOGD_SL:=BASE OPRINT PWSNIFF LOGEMU # mysql output support #ULOGD_SL+=MYSQL -MYSQL_CFLAGS=-I@MYSQLINCLUDES@ -D@EXTRA_MYSQL_DEF@ +MYSQL_CFLAGS=-I@MYSQLINCLUDES@ @EXTRA_MYSQL_DEF@ MYSQL_LDFLAGS=@DATABASE_LIB_DIR@ @DATABASE_LIB@ diff --git a/TODO b/TODO new file mode 100644 index 0000000..5dccb70 --- /dev/null +++ b/TODO @@ -0,0 +1,27 @@ +libipulog: +X handle multi-part nlmsgs +- Error checking at netlink socket +- forward port my timeout enabled read-function from libipq to libipulog +- man pages + +kernel: +X queue the logging in the kernel and send multiple packets in one + multipart nlmsg +- add timer to flush queue in user-defineable time intervals +- IPv6 ULOG target + +ulogd: +X MYSQL output plugin +X syslog compatibility output plugin +- autoconf-detection of ipt_ULOG.h +- _fini() support for plugin destructors (needed for clean shutdown and + SIGHUP configfile reload +- commandline option for "to fork or not to fork" +- various command line options (we don't even have --version) +- add support for capabilities to run as non-root +- big endian fixes +- man pages +- IPv6 support (core and extensions) + +conffile: +- rewrite. 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Since this +dnl feature is only used in ulogd_MYSQL.c, there are no checks in any +dnl way. +dnl + +AC_ARG_WITH(mysql-log-ip-as-string, + --with-mysql-log-ip-as-string log IPs as string rather than as + unsigned long-integer. +,[ + EXTRA_MYSQL_DEF="${EXTRA_MYSQL_DEF} -DIP_AS_STRING=1" + AC_MSG_WARN(the use of --with-mysql-log-ip-as-string is discouraged) +]) + AC_SUBST(DATABASE_DIR) AC_SUBST(DATABASE_LIB) AC_SUBST(DATABASE_LIB_DIR) diff --git a/libipulog/Makefile.in b/libipulog/Makefile.in index 4686b20..973c63e 100644 --- a/libipulog/Makefile.in +++ b/libipulog/Makefile.in @@ -1,7 +1,7 @@ # include @top_srcdir@/Rules.make -CFLAGS+=-Iinclude +CFLAGS+=-Iinclude -I/usr/src/linux/include libipulog.a: libipulog.o ld -i $< -o $@ diff --git a/mysql/ulogd_MYSQL.c b/mysql/ulogd_MYSQL.c index 1dcd3c4..e158814 100644 --- a/mysql/ulogd_MYSQL.c +++ b/mysql/ulogd_MYSQL.c @@ -1,15 +1,22 @@ -/* ulogd_MYSQL.c, Version $Revision: 1.2 $ +/* ulogd_MYSQL.c, Version $Revision: 1.3 $ * * ulogd output plugin for logging to a MySQL database * * (C) 2000 by Harald Welte * This software is distributed under the terms of GNU GPL * - * $Id: ulogd_MYSQL.c,v 1.2 2001/02/16 18:07:52 laforge Exp $ + * $Id: ulogd_MYSQL.c,v 1.3 2001/05/17 15:06:58 laforge Exp $ * - * 15.5.2001, Alex Janssen : + * 15 May 2001, Alex Janssen : * Added a compability option for older MySQL-servers, which * don't support mysql_real_escape_string + * + * 17 May 2001, Alex Janssen : + * Added the --with-mysql-log-ip-as-string feature. This will log + * IP's as string rather than an unsigned long integer to the database. + * See ulogd/doc/mysql.table.ipaddr-as-string as an example. + * BE WARNED: This has _WAY_ less performance during table searches. + * */ #include @@ -85,6 +92,8 @@ static int _mysql_output(ulog_iret_t *result) struct _field *f; ulog_iret_t *res; + char *tmpstr; + stmt_ins = stmt_val; for (f = fields; f; f = f->next) { @@ -122,6 +131,23 @@ static int _mysql_output(ulog_iret_t *result) sprintf(stmt_ins, "%u,", res->value.ui16); break; case ULOGD_RET_IPADDR: +#ifdef IP_AS_STRING + *stmt_ins++ = '\''; + tmpstr = inet_ntoa(ntohl(res->value.ui32)); +#ifdef OLD_MYSQL + mysql_escape_string(stmt_ins, tmpstr, + strlen(tmpstr)); +#else + mysql_real_escape_string(dbh, stmt_ins, + tmpstr, + strlen(tmpstr)); +#endif /* OLD_MYSQL */ + stmt_ins = stmt + strlen(stmt); + sprintf(stmt_ins, "',"); + break; +#endif /* IP_AS_STRING */ + /* EVIL: fallthrough when logging IP as + * u_int32_t */ case ULOGD_RET_UINT32: sprintf(stmt_ins, "%u,", res->value.ui32); break; -- cgit v1.2.3