diff options
Diffstat (limited to 'ospfclient')
-rw-r--r-- | ospfclient/AUTHORS | 1 | ||||
-rw-r--r-- | ospfclient/COPYING | 339 | ||||
-rw-r--r-- | ospfclient/ChangeLog | 57 | ||||
-rw-r--r-- | ospfclient/INSTALL | 182 | ||||
-rw-r--r-- | ospfclient/Makefile.am | 19 | ||||
-rw-r--r-- | ospfclient/Makefile.in | 374 | ||||
-rw-r--r-- | ospfclient/NEWS | 1 | ||||
-rw-r--r-- | ospfclient/README | 4 | ||||
-rw-r--r-- | ospfclient/ospf_apiclient.c | 747 | ||||
-rw-r--r-- | ospfclient/ospf_apiclient.h | 135 | ||||
-rw-r--r-- | ospfclient/ospfclient.c | 291 |
11 files changed, 2150 insertions, 0 deletions
diff --git a/ospfclient/AUTHORS b/ospfclient/AUTHORS new file mode 100644 index 00000000..b865c550 --- /dev/null +++ b/ospfclient/AUTHORS @@ -0,0 +1 @@ +Ralph Keller <keller@tik.ee.ethz.ch> diff --git a/ospfclient/COPYING b/ospfclient/COPYING new file mode 100644 index 00000000..a43ea212 --- /dev/null +++ b/ospfclient/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 675 Mass Ave, Cambridge, MA 02139, USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. 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To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) 19yy <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ospfclient/ChangeLog b/ospfclient/ChangeLog new file mode 100644 index 00000000..275b14ef --- /dev/null +++ b/ospfclient/ChangeLog @@ -0,0 +1,57 @@ +2003-01-10 Ralph Keller <keller@tik.ee.ethz.ch> + * New ChangeLog + +2003-01-08 Ralph Keller <keller@tik.ee.ethz.ch> + * apiclient message passing bug resolved + * (proposed by Masahiko) + +2002-10-09 Ralph Keller <keller@tik.ee.ethz.ch> + * Includes patch in OSPFd for ISM, NSM, neighbor + +2002-09-16 Ralph Keller <keller@tik.ee.ethz.ch> + * Current patch vs. Zebra-0.93b + +2002-08-22 Ralph Keller <keller@tik.ee.ethz.ch> + * Bugfix: LSA updates are now received only once even + * if multiple opaque types are registered + +2002-08-06 Ralph Keller <keller@tik.ee.ethz.ch> + * Upgrade of OSPF API to Zebra-0.93a. + +2002-06-13 Ralph Keller <keller@tik.ee.ethz.ch> + * Opaque LSA origination bug fixed by Masahiko. + * This code is based on 0.93-pre + +2002-05-03 Ralph Keller <keller@tik.ee.ethz.ch> + * Upgrade to newest Zebra from CVS repository. ospf_flood_through + * function did not work after upgrade. Function + * ospf_apiserver_flood_opaque_lsa added. Also byte order problem + * with port numbers resolved. + +2002-05-02 Ralph Keller <keller@tik.ee.ethz.ch> + + * new autoconf and automake files, now called configure.in + * instead of configure.ac + +2002-04-24 Ralph Keller <keller@tik.ee.ethz.ch> + + * reverse channel now works (syncport and syncport+1) + * ospf_apiclient.c: standard includes removed (not needed) + * bzero replaced with memset + +2002-04-18 Ralph Keller <keller@tik.ee.ethz.ch> + + * 2-way phase connection setup + +2002-04-05 Ralph Keller <keller@tik.ee.ethz.ch> + + * Changes incorporated as proposed by Masahiko + +2002-04-05 Ralph Keller <keller@tik.ee.ethz.ch> + + * autoconf and automake-style Makefile + +2002-04-04 Ralph Keller <keller@tik.ee.ethz.ch> + + * 1st public release of OSPF API + diff --git a/ospfclient/INSTALL b/ospfclient/INSTALL new file mode 100644 index 00000000..b42a17ac --- /dev/null +++ b/ospfclient/INSTALL @@ -0,0 +1,182 @@ +Basic Installation +================== + + These are generic installation instructions. + + The `configure' shell script attempts to guess correct values for +various system-dependent variables used during compilation. It uses +those values to create a `Makefile' in each directory of the package. +It may also create one or more `.h' files containing system-dependent +definitions. Finally, it creates a shell script `config.status' that +you can run in the future to recreate the current configuration, a file +`config.cache' that saves the results of its tests to speed up +reconfiguring, and a file `config.log' containing compiler output +(useful mainly for debugging `configure'). + + If you need to do unusual things to compile the package, please try +to figure out how `configure' could check whether to do them, and mail +diffs or instructions to the address given in the `README' so they can +be considered for the next release. If at some point `config.cache' +contains results you don't want to keep, you may remove or edit it. + + The file `configure.in' is used to create `configure' by a program +called `autoconf'. You only need `configure.in' if you want to change +it or regenerate `configure' using a newer version of `autoconf'. + +The simplest way to compile this package is: + + 1. `cd' to the directory containing the package's source code and type + `./configure' to configure the package for your system. If you're + using `csh' on an old version of System V, you might need to type + `sh ./configure' instead to prevent `csh' from trying to execute + `configure' itself. + + Running `configure' takes awhile. While running, it prints some + messages telling which features it is checking for. + + 2. Type `make' to compile the package. + + 3. Optionally, type `make check' to run any self-tests that come with + the package. + + 4. Type `make install' to install the programs and any data files and + documentation. + + 5. You can remove the program binaries and object files from the + source code directory by typing `make clean'. To also remove the + files that `configure' created (so you can compile the package for + a different kind of computer), type `make distclean'. There is + also a `make maintainer-clean' target, but that is intended mainly + for the package's developers. If you use it, you may have to get + all sorts of other programs in order to regenerate files that came + with the distribution. + +Compilers and Options +===================== + + Some systems require unusual options for compilation or linking that +the `configure' script does not know about. You can give `configure' +initial values for variables by setting them in the environment. Using +a Bourne-compatible shell, you can do that on the command line like +this: + CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure + +Or on systems that have the `env' program, you can do it like this: + env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure + +Compiling For Multiple Architectures +==================================== + + You can compile the package for more than one kind of computer at the +same time, by placing the object files for each architecture in their +own directory. To do this, you must use a version of `make' that +supports the `VPATH' variable, such as GNU `make'. `cd' to the +directory where you want the object files and executables to go and run +the `configure' script. `configure' automatically checks for the +source code in the directory that `configure' is in and in `..'. + + If you have to use a `make' that does not supports the `VPATH' +variable, you have to compile the package for one architecture at a time +in the source code directory. After you have installed the package for +one architecture, use `make distclean' before reconfiguring for another +architecture. + +Installation Names +================== + + By default, `make install' will install the package's files in +`/usr/local/bin', `/usr/local/man', etc. You can specify an +installation prefix other than `/usr/local' by giving `configure' the +option `--prefix=PATH'. + + You can specify separate installation prefixes for +architecture-specific files and architecture-independent files. If you +give `configure' the option `--exec-prefix=PATH', the package will use +PATH as the prefix for installing programs and libraries. +Documentation and other data files will still use the regular prefix. + + In addition, if you use an unusual directory layout you can give +options like `--bindir=PATH' to specify different values for particular +kinds of files. Run `configure --help' for a list of the directories +you can set and what kinds of files go in them. + + If the package supports it, you can cause programs to be installed +with an extra prefix or suffix on their names by giving `configure' the +option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. + +Optional Features +================= + + Some packages pay attention to `--enable-FEATURE' options to +`configure', where FEATURE indicates an optional part of the package. +They may also pay attention to `--with-PACKAGE' options, where PACKAGE +is something like `gnu-as' or `x' (for the X Window System). The +`README' should mention any `--enable-' and `--with-' options that the +package recognizes. + + For packages that use the X Window System, `configure' can usually +find the X include and library files automatically, but if it doesn't, +you can use the `configure' options `--x-includes=DIR' and +`--x-libraries=DIR' to specify their locations. + +Specifying the System Type +========================== + + There may be some features `configure' can not figure out +automatically, but needs to determine by the type of host the package +will run on. Usually `configure' can figure that out, but if it prints +a message saying it can not guess the host type, give it the +`--host=TYPE' option. TYPE can either be a short name for the system +type, such as `sun4', or a canonical name with three fields: + CPU-COMPANY-SYSTEM + +See the file `config.sub' for the possible values of each field. If +`config.sub' isn't included in this package, then this package doesn't +need to know the host type. + + If you are building compiler tools for cross-compiling, you can also +use the `--target=TYPE' option to select the type of system they will +produce code for and the `--build=TYPE' option to select the type of +system on which you are compiling the package. + +Sharing Defaults +================ + + If you want to set default values for `configure' scripts to share, +you can create a site shell script called `config.site' that gives +default values for variables like `CC', `cache_file', and `prefix'. +`configure' looks for `PREFIX/share/config.site' if it exists, then +`PREFIX/etc/config.site' if it exists. Or, you can set the +`CONFIG_SITE' environment variable to the location of the site script. +A warning: not all `configure' scripts look for a site script. + +Operation Controls +================== + + `configure' recognizes the following options to control how it +operates. + +`--cache-file=FILE' + Use and save the results of the tests in FILE instead of + `./config.cache'. Set FILE to `/dev/null' to disable caching, for + debugging `configure'. + +`--help' + Print a summary of the options to `configure', and exit. + +`--quiet' +`--silent' +`-q' + Do not print messages saying which checks are being made. To + suppress all normal output, redirect it to `/dev/null' (any error + messages will still be shown). + +`--srcdir=DIR' + Look for the package's source code in directory DIR. Usually + `configure' can determine that directory automatically. + +`--version' + Print the version of Autoconf used to generate the `configure' + script, and exit. + +`configure' also accepts some other, not widely useful, options. diff --git a/ospfclient/Makefile.am b/ospfclient/Makefile.am new file mode 100644 index 00000000..c345d1bd --- /dev/null +++ b/ospfclient/Makefile.am @@ -0,0 +1,19 @@ +## Automake.am for OSPF API client + +INCLUDES = -I../lib -I../ + +noinst_LIBRARIES = libospfapiclient.a +sbin_PROGRAMS = ospfclient + +libospfapiclient_a_SOURCES = \ + ospf_apiclient.c + +noinst_HEADERS = \ + ospf_apiclient.h + +ospfclient_SOURCES = \ + ospfclient.c $(libospfapiclient_a_SOURCES) + +ospfclient_LDADD = ../ospfd/libospf.a ../lib/libzebra.a + + diff --git a/ospfclient/Makefile.in b/ospfclient/Makefile.in new file mode 100644 index 00000000..4deac874 --- /dev/null +++ b/ospfclient/Makefile.in @@ -0,0 +1,374 @@ +# Makefile.in generated automatically by automake 1.4-p5 from Makefile.am + +# Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + + +SHELL = @SHELL@ + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +prefix = @prefix@ +exec_prefix = @exec_prefix@ + +bindir = @bindir@ +sbindir = @sbindir@ +libexecdir = @libexecdir@ +datadir = @datadir@ +sysconfdir = @sysconfdir@ +sharedstatedir = @sharedstatedir@ +localstatedir = @localstatedir@ +libdir = @libdir@ +infodir = @infodir@ +mandir = @mandir@ +includedir = @includedir@ +oldincludedir = /usr/include + +DESTDIR = + +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ + +top_builddir = .. + +ACLOCAL = @ACLOCAL@ +AUTOCONF = @AUTOCONF@ +AUTOMAKE = @AUTOMAKE@ +AUTOHEADER = @AUTOHEADER@ + +INSTALL = @INSTALL@ +INSTALL_PROGRAM = @INSTALL_PROGRAM@ $(AM_INSTALL_PROGRAM_FLAGS) +INSTALL_DATA = @INSTALL_DATA@ +INSTALL_SCRIPT = @INSTALL_SCRIPT@ +transform = @program_transform_name@ + +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +host_alias = @host_alias@ +host_triplet = @host@ +AR = @AR@ +BGPD = @BGPD@ +CC = @CC@ +CPP = @CPP@ +CURSES = @CURSES@ +IF_METHOD = @IF_METHOD@ +IF_PROC = @IF_PROC@ +IPFORWARD = @IPFORWARD@ +KERNEL_METHOD = @KERNEL_METHOD@ +LIBPAM = @LIBPAM@ +LIB_IPV6 = @LIB_IPV6@ +LIB_REGEX = @LIB_REGEX@ +MAKEINFO = @MAKEINFO@ +MULTIPATH_NUM = @MULTIPATH_NUM@ +OSPF6D = @OSPF6D@ +OSPFCLIENT = @OSPFCLIENT@ +OSPFD = @OSPFD@ +OTHER_METHOD = @OTHER_METHOD@ +PACKAGE = @PACKAGE@ +RANLIB = @RANLIB@ +RIPD = @RIPD@ +RIPNGD = @RIPNGD@ +RTREAD_METHOD = @RTREAD_METHOD@ +RT_METHOD = @RT_METHOD@ +VERSION = @VERSION@ +VTYSH = @VTYSH@ +ZEBRA = @ZEBRA@ + +INCLUDES = -I../lib -I../ + +noinst_LIBRARIES = libospfapiclient.a +sbin_PROGRAMS = ospfclient + +libospfapiclient_a_SOURCES = \ + ospf_apiclient.c + + +noinst_HEADERS = \ + ospf_apiclient.h + + +ospfclient_SOURCES = \ + ospfclient.c $(libospfapiclient_a_SOURCES) + + +ospfclient_LDADD = ../ospfd/libospf.a ../lib/libzebra.a +mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs +CONFIG_HEADER = ../config.h +CONFIG_CLEAN_FILES = +LIBRARIES = $(noinst_LIBRARIES) + + +DEFS = @DEFS@ -I. -I$(srcdir) -I.. +CPPFLAGS = @CPPFLAGS@ +LDFLAGS = @LDFLAGS@ +LIBS = @LIBS@ +libospfapiclient_a_LIBADD = +libospfapiclient_a_OBJECTS = ospf_apiclient.o +PROGRAMS = $(sbin_PROGRAMS) + +ospfclient_OBJECTS = ospfclient.o ospf_apiclient.o +ospfclient_DEPENDENCIES = ../ospfd/libospf.a ../lib/libzebra.a +ospfclient_LDFLAGS = +CFLAGS = @CFLAGS@ +COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) +CCLD = $(CC) +LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ +HEADERS = $(noinst_HEADERS) + +DIST_COMMON = README AUTHORS COPYING ChangeLog INSTALL Makefile.am \ +Makefile.in NEWS + + +DISTFILES = $(DIST_COMMON) $(SOURCES) $(HEADERS) $(TEXINFOS) $(EXTRA_DIST) + +TAR = gtar +GZIP_ENV = --best +DEP_FILES = .deps/ospf_apiclient.P .deps/ospfclient.P +SOURCES = $(libospfapiclient_a_SOURCES) $(ospfclient_SOURCES) +OBJECTS = $(libospfapiclient_a_OBJECTS) $(ospfclient_OBJECTS) + +all: all-redirect +.SUFFIXES: +.SUFFIXES: .S .c .o .s +$(srcdir)/Makefile.in: Makefile.am $(top_srcdir)/configure.in $(ACLOCAL_M4) + cd $(top_srcdir) && $(AUTOMAKE) --foreign ospfclient/Makefile + +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status $(BUILT_SOURCES) + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status + + +mostlyclean-noinstLIBRARIES: + +clean-noinstLIBRARIES: + -test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES) + +distclean-noinstLIBRARIES: + +maintainer-clean-noinstLIBRARIES: + +.s.o: + $(COMPILE) -c $< + +.S.o: + $(COMPILE) -c $< + +mostlyclean-compile: + -rm -f *.o core *.core + +clean-compile: + +distclean-compile: + -rm -f *.tab.c + +maintainer-clean-compile: + +libospfapiclient.a: $(libospfapiclient_a_OBJECTS) $(libospfapiclient_a_DEPENDENCIES) + -rm -f libospfapiclient.a + $(AR) cru libospfapiclient.a $(libospfapiclient_a_OBJECTS) $(libospfapiclient_a_LIBADD) + $(RANLIB) libospfapiclient.a + +mostlyclean-sbinPROGRAMS: + +clean-sbinPROGRAMS: + -test -z "$(sbin_PROGRAMS)" || rm -f $(sbin_PROGRAMS) + +distclean-sbinPROGRAMS: + +maintainer-clean-sbinPROGRAMS: + +install-sbinPROGRAMS: $(sbin_PROGRAMS) + @$(NORMAL_INSTALL) + $(mkinstalldirs) $(DESTDIR)$(sbindir) + @list='$(sbin_PROGRAMS)'; for p in $$list; do \ + if test -f $$p; then \ + echo " $(INSTALL_PROGRAM) $$p $(DESTDIR)$(sbindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`"; \ + $(INSTALL_PROGRAM) $$p $(DESTDIR)$(sbindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`; \ + else :; fi; \ + done + +uninstall-sbinPROGRAMS: + @$(NORMAL_UNINSTALL) + list='$(sbin_PROGRAMS)'; for p in $$list; do \ + rm -f $(DESTDIR)$(sbindir)/`echo $$p|sed 's/$(EXEEXT)$$//'|sed '$(transform)'|sed 's/$$/$(EXEEXT)/'`; \ + done + +ospfclient: $(ospfclient_OBJECTS) $(ospfclient_DEPENDENCIES) + @rm -f ospfclient + $(LINK) $(ospfclient_LDFLAGS) $(ospfclient_OBJECTS) $(ospfclient_LDADD) $(LIBS) + +tags: TAGS + +ID: $(HEADERS) $(SOURCES) $(LISP) + list='$(SOURCES) $(HEADERS)'; \ + unique=`for i in $$list; do echo $$i; done | \ + awk ' { files[$$0] = 1; } \ + END { for (i in files) print i; }'`; \ + here=`pwd` && cd $(srcdir) \ + && mkid -f$$here/ID $$unique $(LISP) + +TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) $(LISP) + tags=; \ + here=`pwd`; \ + list='$(SOURCES) $(HEADERS)'; \ + unique=`for i in $$list; do echo $$i; done | \ + awk ' { files[$$0] = 1; } \ + END { for (i in files) print i; }'`; \ + test -z "$(ETAGS_ARGS)$$unique$(LISP)$$tags" \ + || (cd $(srcdir) && etags $(ETAGS_ARGS) $$tags $$unique $(LISP) -o $$here/TAGS) + +mostlyclean-tags: + +clean-tags: + +distclean-tags: + -rm -f TAGS ID + +maintainer-clean-tags: + +distdir = $(top_builddir)/$(PACKAGE)-$(VERSION)/$(subdir) + +subdir = ospfclient + +distdir: $(DISTFILES) + here=`cd $(top_builddir) && pwd`; \ + top_distdir=`cd $(top_distdir) && pwd`; \ + distdir=`cd $(distdir) && pwd`; \ + cd $(top_srcdir) \ + && $(AUTOMAKE) --include-deps --build-dir=$$here --srcdir-name=$(top_srcdir) --output-dir=$$top_distdir --foreign ospfclient/Makefile + @for file in $(DISTFILES); do \ + d=$(srcdir); \ + if test -d $$d/$$file; then \ + cp -pr $$d/$$file $(distdir)/$$file; \ + else \ + test -f $(distdir)/$$file \ + || ln $$d/$$file $(distdir)/$$file 2> /dev/null \ + || cp -p $$d/$$file $(distdir)/$$file || :; \ + fi; \ + done + +DEPS_MAGIC := $(shell mkdir .deps > /dev/null 2>&1 || :) + +-include $(DEP_FILES) + +mostlyclean-depend: + +clean-depend: + +distclean-depend: + -rm -rf .deps + +maintainer-clean-depend: + +%.o: %.c + @echo '$(COMPILE) -c $<'; \ + $(COMPILE) -Wp,-MD,.deps/$(*F).pp -c $< + @-cp .deps/$(*F).pp .deps/$(*F).P; \ + tr ' ' '\012' < .deps/$(*F).pp \ + | sed -e 's/^\\$$//' -e '/^$$/ d' -e '/:$$/ d' -e 's/$$/ :/' \ + >> .deps/$(*F).P; \ + rm .deps/$(*F).pp + +%.lo: %.c + @echo '$(LTCOMPILE) -c $<'; \ + $(LTCOMPILE) -Wp,-MD,.deps/$(*F).pp -c $< + @-sed -e 's/^\([^:]*\)\.o[ ]*:/\1.lo \1.o :/' \ + < .deps/$(*F).pp > .deps/$(*F).P; \ + tr ' ' '\012' < .deps/$(*F).pp \ + | sed -e 's/^\\$$//' -e '/^$$/ d' -e '/:$$/ d' -e 's/$$/ :/' \ + >> .deps/$(*F).P; \ + rm -f .deps/$(*F).pp +info-am: +info: info-am +dvi-am: +dvi: dvi-am +check-am: all-am +check: check-am +installcheck-am: +installcheck: installcheck-am +install-exec-am: install-sbinPROGRAMS +install-exec: install-exec-am + +install-data-am: +install-data: install-data-am + +install-am: all-am + @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am +install: install-am +uninstall-am: uninstall-sbinPROGRAMS +uninstall: uninstall-am +all-am: Makefile $(LIBRARIES) $(PROGRAMS) $(HEADERS) +all-redirect: all-am +install-strip: + $(MAKE) $(AM_MAKEFLAGS) AM_INSTALL_PROGRAM_FLAGS=-s install +installdirs: + $(mkinstalldirs) $(DESTDIR)$(sbindir) + + +mostlyclean-generic: + +clean-generic: + +distclean-generic: + -rm -f Makefile $(CONFIG_CLEAN_FILES) + -rm -f config.cache config.log stamp-h stamp-h[0-9]* + +maintainer-clean-generic: +mostlyclean-am: mostlyclean-noinstLIBRARIES mostlyclean-compile \ + mostlyclean-sbinPROGRAMS mostlyclean-tags \ + mostlyclean-depend mostlyclean-generic + +mostlyclean: mostlyclean-am + +clean-am: clean-noinstLIBRARIES clean-compile clean-sbinPROGRAMS \ + clean-tags clean-depend clean-generic mostlyclean-am + +clean: clean-am + +distclean-am: distclean-noinstLIBRARIES distclean-compile \ + distclean-sbinPROGRAMS distclean-tags distclean-depend \ + distclean-generic clean-am + +distclean: distclean-am + +maintainer-clean-am: maintainer-clean-noinstLIBRARIES \ + maintainer-clean-compile maintainer-clean-sbinPROGRAMS \ + maintainer-clean-tags maintainer-clean-depend \ + maintainer-clean-generic distclean-am + @echo "This command is intended for maintainers to use;" + @echo "it deletes files that may require special tools to rebuild." + +maintainer-clean: maintainer-clean-am + +.PHONY: mostlyclean-noinstLIBRARIES distclean-noinstLIBRARIES \ +clean-noinstLIBRARIES maintainer-clean-noinstLIBRARIES \ +mostlyclean-compile distclean-compile clean-compile \ +maintainer-clean-compile mostlyclean-sbinPROGRAMS \ +distclean-sbinPROGRAMS clean-sbinPROGRAMS maintainer-clean-sbinPROGRAMS \ +uninstall-sbinPROGRAMS install-sbinPROGRAMS tags mostlyclean-tags \ +distclean-tags clean-tags maintainer-clean-tags distdir \ +mostlyclean-depend distclean-depend clean-depend \ +maintainer-clean-depend info-am info dvi-am dvi check check-am \ +installcheck-am installcheck install-exec-am install-exec \ +install-data-am install-data install-am install uninstall-am uninstall \ +all-redirect all-am all installdirs mostlyclean-generic \ +distclean-generic clean-generic maintainer-clean-generic clean \ +mostlyclean distclean maintainer-clean + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/ospfclient/NEWS b/ospfclient/NEWS new file mode 100644 index 00000000..5b1ec4fd --- /dev/null +++ b/ospfclient/NEWS @@ -0,0 +1 @@ +This file contains news. diff --git a/ospfclient/README b/ospfclient/README new file mode 100644 index 00000000..894cd783 --- /dev/null +++ b/ospfclient/README @@ -0,0 +1,4 @@ +For more information about this software check out: + +http://www.tik.ee.ethz.ch/~keller/ospfapi/ + diff --git a/ospfclient/ospf_apiclient.c b/ospfclient/ospf_apiclient.c new file mode 100644 index 00000000..3a62a423 --- /dev/null +++ b/ospfclient/ospf_apiclient.c @@ -0,0 +1,747 @@ +/* + * Client side of OSPF API. + * Copyright (C) 2001, 2002, 2003 Ralph Keller + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2, or (at your + * option) any later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <zebra.h> + +#include "version.h" +#include "getopt.h" +#include "thread.h" +#include "prefix.h" +#include "linklist.h" +#include "if.h" +#include "vector.h" +#include "vty.h" +#include "command.h" +#include "filter.h" +#include "stream.h" +#include "log.h" +#include "memory.h" + +#include "ospfd/ospfd.h" +#include "ospfd/ospf_interface.h" +#include "ospfd/ospf_asbr.h" +#include "ospfd/ospf_lsa.h" +#include "ospfd/ospf_opaque.h" +#include "ospfd/ospf_lsdb.h" +#include "ospfd/ospf_neighbor.h" +#include "ospfd/ospf_dump.h" +#include "ospfd/ospf_zebra.h" +#include "ospfd/ospf_api.h" + +#include "ospf_apiclient.h" + +/* Backlog for listen */ +#define BACKLOG 5 + +/* ----------------------------------------------------------- + * Forward declarations + * ----------------------------------------------------------- + */ + +void ospf_apiclient_handle_reply (struct ospf_apiclient *oclient, + struct msg *msg); +void ospf_apiclient_handle_update_notify (struct ospf_apiclient *oclient, + struct msg *msg); +void ospf_apiclient_handle_delete_notify (struct ospf_apiclient *oclient, + struct msg *msg); + +/* ----------------------------------------------------------- + * Initialization + * ----------------------------------------------------------- + */ + +unsigned short +ospf_apiclient_getport (void) +{ + struct servent *sp = getservbyname ("ospfapi", "tcp"); + + return sp ? ntohs (sp->s_port) : OSPF_API_SYNC_PORT; +} + +/* ----------------------------------------------------------- + * Followings are functions for connection management + * ----------------------------------------------------------- + */ + +struct ospf_apiclient * +ospf_apiclient_connect (char *host, int syncport) +{ + struct sockaddr_in myaddr_sync; + struct sockaddr_in myaddr_async; + struct sockaddr_in peeraddr; + struct hostent *hp; + struct ospf_apiclient *new; + int size = 0; + int peeraddrlen; + int async_server_sock; + int fd1, fd2; + int ret; + int on = 1; + + /* There are two connections between the client and the server. + First the client opens a connection for synchronous requests/replies + to the server. The server will accept this connection and + as a reaction open a reverse connection channel for + asynchronous messages. */ + + async_server_sock = socket (AF_INET, SOCK_STREAM, 0); + if (async_server_sock < 0) + { + fprintf (stderr, + "ospf_apiclient_connect: creating async socket failed\n"); + return NULL; + } + + /* Prepare socket for asynchronous messages */ + /* Initialize async address structure */ + memset (&myaddr_async, 0, sizeof (struct sockaddr_in)); + myaddr_async.sin_family = AF_INET; + myaddr_async.sin_addr.s_addr = htonl (INADDR_ANY); + myaddr_async.sin_port = htons (syncport+1); + size = sizeof (struct sockaddr_in); +#ifdef HAVE_SIN_LEN + myaddr_async.sin_len = size; +#endif /* HAVE_SIN_LEN */ + + /* This is a server socket, reuse addr and port */ + ret = setsockopt (async_server_sock, SOL_SOCKET, + SO_REUSEADDR, (void *) &on, sizeof (on)); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: SO_REUSEADDR failed\n"); + close (async_server_sock); + return NULL; + } + +#ifdef SO_REUSEPORT + ret = setsockopt (async_server_sock, SOL_SOCKET, SO_REUSEPORT, + (void *) &on, sizeof (on)); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: SO_REUSEPORT failed\n"); + close (async_server_sock); + return NULL; + } +#endif /* SO_REUSEPORT */ + + /* Bind socket to address structure */ + ret = bind (async_server_sock, (struct sockaddr *) &myaddr_async, size); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: bind async socket failed\n"); + close (async_server_sock); + return NULL; + } + + /* Wait for reverse channel connection establishment from server */ + ret = listen (async_server_sock, BACKLOG); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: listen: %s\n", strerror (errno)); + close (async_server_sock); + return NULL; + } + + /* Make connection for synchronous requests and connect to server */ + /* Resolve address of server */ + hp = gethostbyname (host); + if (!hp) + { + fprintf (stderr, "ospf_apiclient_connect: no such host %s\n", host); + close (async_server_sock); + return NULL; + } + + fd1 = socket (AF_INET, SOCK_STREAM, 0); + if (fd1 < 0) + { + fprintf (stderr, + "ospf_apiclient_connect: creating sync socket failed\n"); + return NULL; + } + + + /* Reuse addr and port */ + ret = setsockopt (fd1, SOL_SOCKET, + SO_REUSEADDR, (void *) &on, sizeof (on)); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: SO_REUSEADDR failed\n"); + close (fd1); + return NULL; + } + +#ifdef SO_REUSEPORT + ret = setsockopt (fd1, SOL_SOCKET, SO_REUSEPORT, + (void *) &on, sizeof (on)); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: SO_REUSEPORT failed\n"); + close (fd1); + return NULL; + } +#endif /* SO_REUSEPORT */ + + + /* Bind sync socket to address structure. This is needed since we + want the sync port number on a fixed port number. The reverse + async channel will be at this port+1 */ + + memset (&myaddr_sync, 0, sizeof (struct sockaddr_in)); + myaddr_sync.sin_family = AF_INET; + myaddr_sync.sin_port = htons (syncport); +#ifdef HAVE_SIN_LEN + myaddr_sync.sin_len = sizeof (struct sockaddr_in); +#endif /* HAVE_SIN_LEN */ + + ret = bind (fd1, (struct sockaddr *) &myaddr_sync, size); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: bind sync socket failed\n"); + close (fd1); + return NULL; + } + + /* Prepare address structure for connect */ + memcpy (&myaddr_sync.sin_addr, hp->h_addr, hp->h_length); + myaddr_sync.sin_family = AF_INET; + myaddr_sync.sin_port = htons(ospf_apiclient_getport ()); +#ifdef HAVE_SIN_LEN + myaddr_sync.sin_len = sizeof (struct sockaddr_in); +#endif /* HAVE_SIN_LEN */ + + /* Now establish synchronous channel with OSPF daemon */ + ret = connect (fd1, (struct sockaddr *) &myaddr_sync, + sizeof (struct sockaddr_in)); + if (ret < 0) + { + fprintf (stderr, "ospf_apiclient_connect: sync connect failed\n"); + close (async_server_sock); + close (fd1); + return NULL; + } + + /* Accept reverse connection */ + peeraddrlen = sizeof (struct sockaddr_in); + memset (&peeraddr, 0, peeraddrlen); + + fd2 = + accept (async_server_sock, (struct sockaddr *) &peeraddr, &peeraddrlen); + if (fd2 < 0) + { + fprintf (stderr, "ospf_apiclient_connect: accept async failed\n"); + close (async_server_sock); + close (fd1); + return NULL; + } + + /* Server socket is not needed anymore since we are not accepting more + connections */ + close (async_server_sock); + + /* Create new client-side instance */ + new = XMALLOC (MTYPE_OSPF_APICLIENT, sizeof (struct ospf_apiclient)); + memset (new, 0, sizeof (struct ospf_apiclient)); + + /* Initialize socket descriptors for sync and async channels */ + new->fd_sync = fd1; + new->fd_async = fd2; + + return new; +} + +int +ospf_apiclient_close (struct ospf_apiclient *oclient) +{ + + if (oclient->fd_sync >= 0) + { + close (oclient->fd_sync); + } + + if (oclient->fd_async >= 0) + { + close (oclient->fd_async); + } + + /* Free client structure */ + XFREE (MTYPE_OSPF_APICLIENT, oclient); + return 0; +} + +/* ----------------------------------------------------------- + * Followings are functions to send a request to OSPFd + * ----------------------------------------------------------- + */ + +/* Send synchronous request, wait for reply */ +int +ospf_apiclient_send_request (struct ospf_apiclient *oclient, struct msg *msg) +{ + u_int32_t reqseq; + struct msg_reply *msgreply; + int rc; + + /* NB: Given "msg" is freed inside this function. */ + + /* Remember the sequence number of the request */ + reqseq = ntohl (msg->hdr.msgseq); + + /* Write message to OSPFd */ + rc = msg_write (oclient->fd_sync, msg); + msg_free (msg); + + if (rc < 0) + { + return -1; + } + + /* Wait for reply *//* NB: New "msg" is allocated by "msg_read()". */ + msg = msg_read (oclient->fd_sync); + if (!msg) + return -1; + + assert (msg->hdr.msgtype == MSG_REPLY); + assert (ntohl (msg->hdr.msgseq) == reqseq); + + msgreply = (struct msg_reply *) STREAM_DATA (msg->s); + rc = msgreply->errcode; + msg_free (msg); + + return rc; +} + + +/* ----------------------------------------------------------- + * Helper functions + * ----------------------------------------------------------- + */ + +static u_int32_t +ospf_apiclient_get_seqnr (void) +{ + static u_int32_t seqnr = MIN_SEQ; + u_int32_t tmp; + + tmp = seqnr; + /* Increment sequence number */ + if (seqnr < MAX_SEQ) + { + seqnr++; + } + else + { + seqnr = MIN_SEQ; + } + return tmp; +} + +/* ----------------------------------------------------------- + * API to access OSPF daemon by client applications. + * ----------------------------------------------------------- + */ + +/* + * Synchronous request to register opaque type. + */ +int +ospf_apiclient_register_opaque_type (struct ospf_apiclient *cl, + u_char ltype, u_char otype) +{ + struct msg *msg; + int rc; + + /* just put 1 as a sequence number. */ + msg = new_msg_register_opaque_type (ospf_apiclient_get_seqnr (), + ltype, otype); + if (!msg) + { + fprintf (stderr, "new_msg_register_opaque_type failed\n"); + return -1; + } + + rc = ospf_apiclient_send_request (cl, msg); + return rc; +} + +/* + * Synchronous request to synchronize with OSPF's LSDB. + * Two steps required: register_event in order to get + * dynamic updates and LSDB_Sync. + */ +int +ospf_apiclient_sync_lsdb (struct ospf_apiclient *oclient) +{ + struct msg *msg; + int rc; + struct lsa_filter_type filter; + + filter.typemask = 0xFFFF; /* all LSAs */ + filter.origin = ANY_ORIGIN; + filter.num_areas = 0; /* all Areas. */ + + msg = new_msg_register_event (ospf_apiclient_get_seqnr (), &filter); + if (!msg) + { + fprintf (stderr, "new_msg_register_event failed\n"); + return -1; + } + rc = ospf_apiclient_send_request (oclient, msg); + + if (rc != 0) + goto out; + + msg = new_msg_sync_lsdb (ospf_apiclient_get_seqnr (), &filter); + if (!msg) + { + fprintf (stderr, "new_msg_sync_lsdb failed\n"); + return -1; + } + rc = ospf_apiclient_send_request (oclient, msg); + +out: + return rc; +} + +/* + * Synchronous request to originate or update an LSA. + */ + +int +ospf_apiclient_lsa_originate (struct ospf_apiclient *oclient, + struct in_addr ifaddr, + struct in_addr area_id, + u_char lsa_type, + u_char opaque_type, u_int32_t opaque_id, + void *opaquedata, int opaquelen) +{ + struct msg *msg; + int rc; + u_char buf[OSPF_MAX_LSA_SIZE]; + struct lsa_header *lsah; + u_int32_t tmp; + + + /* We can only originate opaque LSAs */ + if (!IS_OPAQUE_LSA (lsa_type)) + { + fprintf (stderr, "Cannot originate non-opaque LSA type %d\n", lsa_type); + return OSPF_API_ILLEGALLSATYPE; + } + + /* Make a new LSA from parameters */ + lsah = (struct lsa_header *) buf; + lsah->ls_age = 0; + lsah->options = 0; + lsah->type = lsa_type; + + tmp = SET_OPAQUE_LSID (opaque_type, opaque_id); + lsah->id.s_addr = htonl (tmp); + lsah->adv_router.s_addr = 0; + lsah->ls_seqnum = 0; + lsah->checksum = 0; + lsah->length = htons (sizeof (struct lsa_header) + opaquelen); + + memcpy (((u_char *) lsah) + sizeof (struct lsa_header), opaquedata, + opaquelen); + + msg = new_msg_originate_request (ospf_apiclient_get_seqnr (), + ifaddr, area_id, lsah); + if (!msg) + { + fprintf (stderr, "new_msg_originate_request failed\n"); + return OSPF_API_NOMEMORY; + } + + rc = ospf_apiclient_send_request (oclient, msg); + return rc; +} + +int +ospf_apiclient_lsa_delete (struct ospf_apiclient *oclient, + struct in_addr area_id, u_char lsa_type, + u_char opaque_type, u_int32_t opaque_id) +{ + struct msg *msg; + int rc; + + /* Only opaque LSA can be deleted */ + if (!IS_OPAQUE_LSA (lsa_type)) + { + fprintf (stderr, "Cannot delete non-opaque LSA type %d\n", lsa_type); + return OSPF_API_ILLEGALLSATYPE; + } + + /* opaque_id is in host byte order and will be converted + * to network byte order by new_msg_delete_request */ + msg = new_msg_delete_request (ospf_apiclient_get_seqnr (), + area_id, lsa_type, opaque_type, opaque_id); + + rc = ospf_apiclient_send_request (oclient, msg); + return rc; +} + +/* ----------------------------------------------------------- + * Followings are handlers for messages from OSPF daemon + * ----------------------------------------------------------- + */ + +void +ospf_apiclient_handle_ready (struct ospf_apiclient *oclient, struct msg *msg) +{ + struct msg_ready_notify *r; + r = (struct msg_ready_notify *) STREAM_DATA (msg->s); + + /* Invoke registered callback function. */ + if (oclient->ready_notify) + { + (oclient->ready_notify) (r->lsa_type, r->opaque_type, r->addr); + } +} + +void +ospf_apiclient_handle_new_if (struct ospf_apiclient *oclient, struct msg *msg) +{ + struct msg_new_if *n; + n = (struct msg_new_if *) STREAM_DATA (msg->s); + + /* Invoke registered callback function. */ + if (oclient->new_if) + { + (oclient->new_if) (n->ifaddr, n->area_id); + } +} + +void +ospf_apiclient_handle_del_if (struct ospf_apiclient *oclient, struct msg *msg) +{ + struct msg_del_if *d; + d = (struct msg_del_if *) STREAM_DATA (msg->s); + + /* Invoke registered callback function. */ + if (oclient->del_if) + { + (oclient->del_if) (d->ifaddr); + } +} + +void +ospf_apiclient_handle_ism_change (struct ospf_apiclient *oclient, + struct msg *msg) +{ + struct msg_ism_change *m; + m = (struct msg_ism_change *) STREAM_DATA (msg->s); + + /* Invoke registered callback function. */ + if (oclient->ism_change) + { + (oclient->ism_change) (m->ifaddr, m->area_id, m->status); + } + +} + +void +ospf_apiclient_handle_nsm_change (struct ospf_apiclient *oclient, + struct msg *msg) +{ + struct msg_nsm_change *m; + m = (struct msg_nsm_change *) STREAM_DATA (msg->s); + + /* Invoke registered callback function. */ + if (oclient->nsm_change) + { + (oclient->nsm_change) (m->ifaddr, m->nbraddr, m->router_id, m->status); + } +} + +void +ospf_apiclient_handle_lsa_update (struct ospf_apiclient *oclient, + struct msg *msg) +{ + struct msg_lsa_change_notify *cn; + struct lsa_header *lsa; + int lsalen; + + cn = (struct msg_lsa_change_notify *) STREAM_DATA (msg->s); + + /* Extract LSA from message */ + lsalen = ntohs (cn->data.length); + lsa = XMALLOC (MTYPE_OSPF_APICLIENT, lsalen); + if (!lsa) + { + fprintf (stderr, "LSA update: Cannot allocate memory for LSA\n"); + return; + } + memcpy (lsa, &(cn->data), lsalen); + + /* Invoke registered update callback function */ + if (oclient->update_notify) + { + (oclient->update_notify) (cn->ifaddr, cn->area_id, + cn->is_self_originated, lsa); + } + + /* free memory allocated by ospf apiclient library */ + XFREE (MTYPE_OSPF_APICLIENT, lsa); +} + +void +ospf_apiclient_handle_lsa_delete (struct ospf_apiclient *oclient, + struct msg *msg) +{ + struct msg_lsa_change_notify *cn; + struct lsa_header *lsa; + int lsalen; + + cn = (struct msg_lsa_change_notify *) STREAM_DATA (msg->s); + + /* Extract LSA from message */ + lsalen = ntohs (cn->data.length); + lsa = XMALLOC (MTYPE_OSPF_APICLIENT, lsalen); + if (!lsa) + { + fprintf (stderr, "LSA delete: Cannot allocate memory for LSA\n"); + return; + } + memcpy (lsa, &(cn->data), lsalen); + + /* Invoke registered update callback function */ + if (oclient->delete_notify) + { + (oclient->delete_notify) (cn->ifaddr, cn->area_id, + cn->is_self_originated, lsa); + } + + /* free memory allocated by ospf apiclient library */ + XFREE (MTYPE_OSPF_APICLIENT, lsa); +} + +void +ospf_apiclient_msghandle (struct ospf_apiclient *oclient, struct msg *msg) +{ + /* Call message handler function. */ + switch (msg->hdr.msgtype) + { + case MSG_READY_NOTIFY: + ospf_apiclient_handle_ready (oclient, msg); + break; + case MSG_NEW_IF: + ospf_apiclient_handle_new_if (oclient, msg); + break; + case MSG_DEL_IF: + ospf_apiclient_handle_del_if (oclient, msg); + break; + case MSG_ISM_CHANGE: + ospf_apiclient_handle_ism_change (oclient, msg); + break; + case MSG_NSM_CHANGE: + ospf_apiclient_handle_nsm_change (oclient, msg); + break; + case MSG_LSA_UPDATE_NOTIFY: + ospf_apiclient_handle_lsa_update (oclient, msg); + break; + case MSG_LSA_DELETE_NOTIFY: + ospf_apiclient_handle_lsa_delete (oclient, msg); + break; + default: + fprintf (stderr, "ospf_apiclient_read: Unknown message type: %d\n", + msg->hdr.msgtype); + break; + } +} + +/* ----------------------------------------------------------- + * Callback handler registration + * ----------------------------------------------------------- + */ + +void +ospf_apiclient_register_callback (struct ospf_apiclient *oclient, + void (*ready_notify) (u_char lsa_type, + u_char opaque_type, + struct in_addr addr), + void (*new_if) (struct in_addr ifaddr, + struct in_addr area_id), + void (*del_if) (struct in_addr ifaddr), + void (*ism_change) (struct in_addr ifaddr, + struct in_addr area_id, + u_char status), + void (*nsm_change) (struct in_addr ifaddr, + struct in_addr nbraddr, + struct in_addr + router_id, + u_char status), + void (*update_notify) (struct in_addr + ifaddr, + struct in_addr + area_id, + u_char self_origin, + struct lsa_header * + lsa), + void (*delete_notify) (struct in_addr + ifaddr, + struct in_addr + area_id, + u_char self_origin, + struct lsa_header * + lsa)) +{ + assert (oclient); + assert (update_notify); + + /* Register callback function */ + oclient->ready_notify = ready_notify; + oclient->new_if = new_if; + oclient->del_if = del_if; + oclient->ism_change = ism_change; + oclient->nsm_change = nsm_change; + oclient->update_notify = update_notify; + oclient->delete_notify = delete_notify; +} + +/* ----------------------------------------------------------- + * Asynchronous message handling + * ----------------------------------------------------------- + */ + +int +ospf_apiclient_handle_async (struct ospf_apiclient *oclient) +{ + struct msg *msg; + + /* Get a message */ + msg = msg_read (oclient->fd_async); + + if (!msg) + { + /* Connection broke down */ + return -1; + } + + /* Handle message */ + ospf_apiclient_msghandle (oclient, msg); + + /* Don't forget to free this message */ + msg_free (msg); + + return 0; +} diff --git a/ospfclient/ospf_apiclient.h b/ospfclient/ospf_apiclient.h new file mode 100644 index 00000000..0e74787a --- /dev/null +++ b/ospfclient/ospf_apiclient.h @@ -0,0 +1,135 @@ +/* + * Client side of OSPF API. + * Copyright (C) 2001, 2002, 2003 Ralph Keller + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published + * by the Free Software Foundation; either version 2, or (at your + * option) any later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef _OSPF_APICLIENT_H +#define _OSPF_APICLIENT_H + +#define MTYPE_OSPF_APICLIENT 0 + +/* Structure for the OSPF API client */ +struct ospf_apiclient +{ + + /* Sockets for sync requests and async notifications */ + int fd_sync; + int fd_async; + + /* Pointer to callback functions */ + void (*ready_notify) (u_char lsa_type, u_char opaque_type, + struct in_addr addr); + void (*new_if) (struct in_addr ifaddr, struct in_addr area_id); + void (*del_if) (struct in_addr ifaddr); + void (*ism_change) (struct in_addr ifaddr, struct in_addr area_id, + u_char status); + void (*nsm_change) (struct in_addr ifaddr, struct in_addr nbraddr, + struct in_addr router_id, u_char status); + void (*update_notify) (struct in_addr ifaddr, struct in_addr area_id, + u_char self_origin, + struct lsa_header * lsa); + void (*delete_notify) (struct in_addr ifaddr, struct in_addr area_id, + u_char self_origin, + struct lsa_header * lsa); +}; + + +/* --------------------------------------------------------- + * API function prototypes. + * --------------------------------------------------------- */ + +/* Open connection to OSPF daemon. Two ports will be allocated on + client, sync channel at syncport and reverse channel at syncport+1 */ +struct ospf_apiclient *ospf_apiclient_connect (char *host, int syncport); + +/* Shutdown connection to OSPF daemon. */ +int ospf_apiclient_close (struct ospf_apiclient *oclient); + +/* Synchronous request to register opaque type. */ +int ospf_apiclient_register_opaque_type (struct ospf_apiclient *oclient, + u_char ltype, u_char otype); + +/* Synchronous request to register event mask. */ +int ospf_apiclient_register_events (struct ospf_apiclient *oclient, + u_int32_t mask); + +/* Register callback functions.*/ +void ospf_apiclient_register_callback (struct ospf_apiclient *oclient, + void (*ready_notify) (u_char lsa_type, + u_char + opaque_type, + struct in_addr + addr), + void (*new_if) (struct in_addr ifaddr, + struct in_addr + area_id), + void (*del_if) (struct in_addr ifaddr), + void (*ism_change) (struct in_addr + ifaddr, + struct in_addr + area_id, + u_char status), + void (*nsm_change) (struct in_addr + ifaddr, + struct in_addr + nbraddr, + struct in_addr + router_id, + u_char status), + void (*update_notify) (struct in_addr + ifaddr, + struct in_addr + area_id, + u_char selforig, + struct + lsa_header * + lsa), + void (*delete_notify) (struct in_addr + ifaddr, + struct in_addr + area_id, + u_char selforig, + struct + lsa_header * + lsa)); + +/* Synchronous request to synchronize LSDB. */ +int ospf_apiclient_sync_lsdb (struct ospf_apiclient *oclient); + +/* Synchronous request to originate or update opaque LSA. */ +int +ospf_apiclient_lsa_originate(struct ospf_apiclient *oclient, + struct in_addr ifaddr, + struct in_addr area_id, + u_char lsa_type, + u_char opaque_type, u_int32_t opaque_id, + void *opaquedata, int opaquelen); + + +/* Synchronous request to delete opaque LSA. Parameter opaque_id is in + host byte order */ +int ospf_apiclient_lsa_delete (struct ospf_apiclient *oclient, + struct in_addr area_id, u_char lsa_type, + u_char opaque_type, u_int32_t opaque_id); + +/* Fetch async message and handle it */ +int ospf_apiclient_handle_async (struct ospf_apiclient *oclient); + +#endif /* _OSPF_APICLIENT_H */ diff --git a/ospfclient/ospfclient.c b/ospfclient/ospfclient.c new file mode 100644 index 00000000..7321bf68 --- /dev/null +++ b/ospfclient/ospfclient.c @@ -0,0 +1,291 @@ +/* + * Simple main program to demonstrate how OSPF API can be used. + */ + +/* The following includes are needed in all OSPF API client + applications */ + +#include <zebra.h> +#include "prefix.h" /* for ospf_asbr.h */ + +#include "ospfd/ospfd.h" +#include "ospfd/ospf_asbr.h" +#include "ospfd/ospf_lsa.h" +#include "ospfd/ospf_opaque.h" +#include "ospfd/ospf_lsdb.h" +#include "ospfd/ospf_dump.h" +#include "ospfd/ospf_api.h" +#include "ospf_apiclient.h" + +/* The following includes are specific to this main application. Here + main uses the thread functionality from libzebra (however an + application can use any thread library like pthreads) */ + +#include "thread.h" +#include "log.h" + +/* local portnumber for async channel */ +#define ASYNCPORT 4000 + +/* Master thread */ +struct thread_master *master; + +/* Global variables */ +struct ospf_apiclient *oclient; +char **args; + +/* Our opaque LSAs have the following format */ +struct my_opaque_lsa +{ + struct lsa_header hdr; + u_char data[4]; +}; + + +/* --------------------------------------------------------- + * Threads for asynchronous messages and LSA update/delete + * --------------------------------------------------------- + */ + +int +lsa_delete (struct thread *t) +{ + struct ospf_apiclient *oclient; + struct in_addr area_id; + int rc; + + oclient = THREAD_ARG (t); + + inet_aton (args[6], &area_id); + + printf ("Deleting LSA... "); + rc = ospf_apiclient_lsa_delete (oclient, + area_id, + atoi (args[2]), /* lsa type */ + atoi (args[3]), /* opaque type */ + atoi (args[4])); /* opaque ID */ + printf ("done, return code is = %d\n", rc); + return rc; +} + +int +lsa_inject (struct thread *t) +{ + struct ospf_apiclient *cl; + struct in_addr ifaddr; + struct in_addr area_id; + u_char lsa_type; + u_char opaque_type; + u_int32_t opaque_id; + void *opaquedata; + int opaquelen; + + static u_int32_t counter = 1; /* Incremented each time */ + int rc; + + cl = THREAD_ARG (t); + + inet_aton (args[5], &ifaddr); + inet_aton (args[6], &area_id); + lsa_type = atoi (args[2]); + opaque_type = atoi (args[3]); + opaque_id = atoi (args[4]); + opaquedata = &counter; + opaquelen = sizeof (u_int32_t); + + printf ("Originating/updating LSA with counter=%d... ", counter); + rc = ospf_apiclient_lsa_originate(cl, ifaddr, area_id, + lsa_type, + opaque_type, opaque_id, + opaquedata, opaquelen); + + printf ("done, return code is %d\n", rc); + + counter++; + + return 0; +}; + + +/* This thread handles asynchronous messages coming in from the OSPF + API server */ +int +lsa_read (struct thread *thread) +{ + struct ospf_apiclient *oclient; + int fd; + int ret; + + printf ("lsa_read called\n"); + + oclient = THREAD_ARG (thread); + fd = THREAD_FD (thread); + + /* Handle asynchronous message */ + ret = ospf_apiclient_handle_async (oclient); + if (ret < 0) { + printf ("Connection closed, exiting..."); + exit(0); + } + + /* Reschedule read thread */ + thread_add_read (master, lsa_read, oclient, fd); + + return 0; +} + + + +/* --------------------------------------------------------- + * Callback functions for asynchronous events + * --------------------------------------------------------- + */ + +void +lsa_update_callback (struct in_addr ifaddr, struct in_addr area_id, + u_char is_self_originated, + struct lsa_header *lsa) +{ + printf ("lsa_update_callback: "); + printf ("ifaddr: %s ", inet_ntoa (ifaddr)); + printf ("area: %s\n", inet_ntoa (area_id)); + printf ("is_self_origin: %u\n", is_self_originated); + + ospf_lsa_header_dump (lsa); +} + +void +lsa_delete_callback (struct in_addr ifaddr, struct in_addr area_id, + u_char is_self_originated, + struct lsa_header *lsa) +{ + printf ("lsa_delete_callback: "); + printf ("ifaddr: %s ", inet_ntoa (ifaddr)); + printf ("area: %s\n", inet_ntoa (area_id)); + printf ("is_self_origin: %u\n", is_self_originated); + + ospf_lsa_header_dump (lsa); +} + +void +ready_callback (u_char lsa_type, u_char opaque_type, struct in_addr addr) +{ + printf ("ready_callback: lsa_type: %d opaque_type: %d addr=%s\n", + lsa_type, opaque_type, inet_ntoa (addr)); + + /* Schedule opaque LSA originate in 5 secs */ + thread_add_timer (master, lsa_inject, oclient, 5); + + /* Schedule opaque LSA update with new value */ + thread_add_timer (master, lsa_inject, oclient, 10); + + /* Schedule delete */ + thread_add_timer (master, lsa_delete, oclient, 30); +} + +void +new_if_callback (struct in_addr ifaddr, struct in_addr area_id) +{ + printf ("new_if_callback: ifaddr: %s ", inet_ntoa (ifaddr)); + printf ("area_id: %s\n", inet_ntoa (area_id)); +} + +void +del_if_callback (struct in_addr ifaddr) +{ + printf ("new_if_callback: ifaddr: %s\n ", inet_ntoa (ifaddr)); +} + +void +ism_change_callback (struct in_addr ifaddr, struct in_addr area_id, + u_char state) +{ + printf ("ism_change: ifaddr: %s ", inet_ntoa (ifaddr)); + printf ("area_id: %s\n", inet_ntoa (area_id)); + printf ("state: %d [%s]\n", state, LOOKUP (ospf_ism_state_msg, state)); +} + +void +nsm_change_callback (struct in_addr ifaddr, struct in_addr nbraddr, + struct in_addr router_id, u_char state) +{ + printf ("nsm_change: ifaddr: %s ", inet_ntoa (ifaddr)); + printf ("nbraddr: %s\n", inet_ntoa (nbraddr)); + printf ("router_id: %s\n", inet_ntoa (router_id)); + printf ("state: %d [%s]\n", state, LOOKUP (ospf_nsm_state_msg, state)); +} + + +/* --------------------------------------------------------- + * Main program + * --------------------------------------------------------- + */ + +int +main (int argc, char *argv[]) +{ + struct thread thread; + + args = argv; + + /* Main should be started with the following arguments: + * + * (1) host (2) lsa_type (3) opaque_type (4) opaque_id (5) if_addr + * (6) area_id + * + * host: name or IP of host where ospfd is running + * lsa_type: 9, 10, or 11 + * opaque_type: 0-255 (e.g., 140 for experimental Active Networking) + * opaque_id: arbitrary application instance (24 bits) + * if_addr: interface IP address (for type 9) otherwise ignored + * area_id: area in IP address format (for type 10) otherwise ignored + */ + + if (argc != 7) + { + printf ("main: wrong number of arguments!\n"); + exit (1); + } + + /* Initialization */ + master = thread_master_create (); + + /* Open connection to OSPF daemon */ + oclient = ospf_apiclient_connect (args[1], ASYNCPORT); + if (!oclient) + { + printf ("main: connect failed!\n"); + exit (1); + } + + /* Register callback functions. */ + ospf_apiclient_register_callback (oclient, + ready_callback, + new_if_callback, + del_if_callback, + ism_change_callback, + nsm_change_callback, + lsa_update_callback, + lsa_delete_callback); + + /* Register LSA type and opaque type. */ + ospf_apiclient_register_opaque_type (oclient, atoi (args[2]), + atoi (args[3])); + + /* Synchronize database with OSPF daemon. */ + ospf_apiclient_sync_lsdb (oclient); + + /* Schedule thread that handles asynchronous messages */ + thread_add_read (master, lsa_read, oclient, oclient->fd_async); + + /* Now connection is established, run loop */ + while (1) + { + thread_fetch (master, &thread); + thread_call (&thread); + } + + /* Never reached */ + return 0; +} + |