From dacafa55379fd98212031d8c559096c91d7ce93b Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 27 Jan 2009 20:56:23 +0100 Subject: libxtables: prefix/order - program_name Split XTABLES_VERSION into xtables and iptables, and encode the xtables soversion into the extensions instead. This makes it possible to upgrade iptables without having to recompile 3rd-party extensions (if the libxtables version matches, of course). Signed-off-by: Jan Engelhardt --- .gitignore | 1 + Makefile.am | 2 +- configure.ac | 26 ++++++++++---------------- include/xtables.h.in | 13 ++++++++----- include/xtables/internal.h | 34 ---------------------------------- include/xtables/internal.h.in | 41 +++++++++++++++++++++++++++++++++++++++++ ip6tables-restore.c | 5 +++-- ip6tables-save.c | 5 +++-- ip6tables-standalone.c | 3 ++- iptables-restore.c | 5 +++-- iptables-save.c | 5 +++-- iptables-standalone.c | 3 ++- iptables-xml.c | 4 ++-- xtables.c | 37 +++++++++++++++++++++++-------------- 14 files changed, 102 insertions(+), 82 deletions(-) delete mode 100644 include/xtables/internal.h create mode 100644 include/xtables/internal.h.in diff --git a/.gitignore b/.gitignore index 741f9729..116de2c3 100644 --- a/.gitignore +++ b/.gitignore @@ -18,6 +18,7 @@ Makefile.in /extensions/targets?.man /include/xtables.h +/include/xtables/internal.h /aclocal.m4 /autom4te*.cache diff --git a/Makefile.am b/Makefile.am index 83ab3bba..0ffb9785 100644 --- a/Makefile.am +++ b/Makefile.am @@ -14,7 +14,7 @@ libiptc_libiptc_a_SOURCES = libiptc/libip4tc.c libiptc/libip6tc.c lib_LTLIBRARIES = libxtables.la libxtables_la_SOURCES = xtables.c -libxtables_la_LDFLAGS = -version-info 1:0:0 +libxtables_la_LDFLAGS = -version-info ${libxtables_vcurrent}:0:${libxtables_vage} # iptables, dynamic iptables_SOURCES = iptables-standalone.c iptables.c diff --git a/configure.ac b/configure.ac index 8c9c30de..bb32130c 100644 --- a/configure.ac +++ b/configure.ac @@ -1,11 +1,10 @@ -define([_XTABLES_VERSION_MAJOR], 1) -define([_XTABLES_VERSION_MINOR], 4) -define([_XTABLES_VERSION_PATCH], 3) -define([_XTABLES_VERSION_EXTRA], -rc1) -define([_XTABLES_VERSION],_XTABLES_VERSION_MAJOR._XTABLES_VERSION_MINOR._XTABLES_VERSION_PATCH[]_XTABLES_VERSION_EXTRA) +AC_INIT([iptables], [1.4.3-rc1]) + +# See libtool.info "Libtool's versioning system" +libxtables_vcurrent=1 +libxtables_vage=0 -AC_INIT([iptables], _XTABLES_VERSION) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_MACRO_DIR([m4]) AC_PROG_INSTALL @@ -74,16 +73,11 @@ AC_SUBST([kbuilddir]) AC_SUBST([ksourcedir]) AC_SUBST([xtlibdir]) AC_SUBST([pkgconfigdir]) - -XTABLES_VERSION_MAJOR=_XTABLES_VERSION_MAJOR -XTABLES_VERSION_MINOR=_XTABLES_VERSION_MINOR -XTABLES_VERSION_PATCH=_XTABLES_VERSION_PATCH -XTABLES_VERSION_EXTRA=_XTABLES_VERSION_EXTRA -AC_SUBST([XTABLES_VERSION_MAJOR]) -AC_SUBST([XTABLES_VERSION_MINOR]) -AC_SUBST([XTABLES_VERSION_PATCH]) -AC_SUBST([XTABLES_VERSION_EXTRA]) +AC_SUBST([libxtables_vcurrent]) +AC_SUBST([libxtables_vage]) +libxtables_vmajor=$(($libxtables_vcurrent - $libxtables_vage)); +AC_SUBST([libxtables_vmajor]) AC_CONFIG_FILES([Makefile extensions/GNUmakefile libipq/Makefile - include/xtables.h xtables.pc]) + include/xtables.h include/xtables/internal.h xtables.pc]) AC_OUTPUT diff --git a/include/xtables.h.in b/include/xtables.h.in index f372d334..e1f9c926 100644 --- a/include/xtables.h.in +++ b/include/xtables.h.in @@ -1,6 +1,11 @@ #ifndef _XTABLES_H #define _XTABLES_H +/* + * Changing any structs/functions may incur a needed change + * in libxtables_vcurrent/vage too. + */ + #include /* PF_* */ #include #include @@ -20,10 +25,8 @@ #define IPPROTO_UDPLITE 136 #endif -#define XTABLES_VERSION "@PACKAGE_VERSION@" -#define XTABLES_VERSION_CODE (0x10000 * @XTABLES_VERSION_MAJOR@ + 0x100 * @XTABLES_VERSION_MINOR@ + @XTABLES_VERSION_PATCH@) - -#define XTABLES_API_VERSION(x,y,z) (0x10000*(x) + 0x100*(y) + z) +#define XTABLES_VERSION "libxtables.so.@libxtables_vmajor@" +#define XTABLES_VERSION_CODE @libxtables_vmajor@ struct in_addr; @@ -155,6 +158,7 @@ enum xtables_tryload { XTF_LOAD_MUST_SUCCEED, }; +extern const char *xtables_program_name; extern const char *xtables_modprobe_program; extern struct xtables_match *xtables_matches; extern struct xtables_target *xtables_targets; @@ -202,7 +206,6 @@ int check_inverse(const char option[], int *invert, int *my_optind, int argc); void exit_error(enum exittype, const char *, ...)__attribute__((noreturn, format(printf,2,3))); extern void param_act(unsigned int, const char *, ...); -extern const char *program_name, *program_version; extern const char *ipaddr_to_numeric(const struct in_addr *); extern const char *ipaddr_to_anyname(const struct in_addr *); diff --git a/include/xtables/internal.h b/include/xtables/internal.h deleted file mode 100644 index 21c4401f..00000000 --- a/include/xtables/internal.h +++ /dev/null @@ -1,34 +0,0 @@ -#ifndef _XTABLES_INTERNAL_H -#define _XTABLES_INTERNAL_H 1 - -#ifndef XT_LIB_DIR -# define XT_LIB_DIR "/usr/local/lib/iptables" -#endif - -/* protocol family dependent informations */ -struct afinfo { - /* protocol family */ - int family; - - /* prefix of library name (ex "libipt_" */ - char *libprefix; - - /* used by setsockopt (ex IPPROTO_IP */ - int ipproto; - - /* kernel module (ex "ip_tables" */ - char *kmod; - - /* optname to check revision support of match */ - int so_rev_match; - - /* optname to check revision support of match */ - int so_rev_target; -}; - -/* This is decleared in ip[6]tables.c */ -extern struct afinfo afinfo; - -extern void _init(void); - -#endif /* _XTABLES_INTERNAL_H */ diff --git a/include/xtables/internal.h.in b/include/xtables/internal.h.in new file mode 100644 index 00000000..21438290 --- /dev/null +++ b/include/xtables/internal.h.in @@ -0,0 +1,41 @@ +#ifndef _XTABLES_INTERNAL_H +#define _XTABLES_INTERNAL_H 1 + +#define IPTABLES_VERSION "@PACKAGE_VERSION@" + +#ifndef XT_LIB_DIR +# define XT_LIB_DIR "/usr/local/lib/iptables" +#endif + +/* protocol family dependent informations */ +struct afinfo { + /* protocol family */ + int family; + + /* prefix of library name (ex "libipt_" */ + char *libprefix; + + /* used by setsockopt (ex IPPROTO_IP */ + int ipproto; + + /* kernel module (ex "ip_tables" */ + char *kmod; + + /* optname to check revision support of match */ + int so_rev_match; + + /* optname to check revision support of match */ + int so_rev_target; +}; + +/* This is decleared in ip[6]tables.c */ +extern struct afinfo afinfo; + +/** + * Program's own name and version. + */ +extern const char *program_name, *program_version; + +extern void _init(void); + +#endif /* _XTABLES_INTERNAL_H */ diff --git a/ip6tables-restore.c b/ip6tables-restore.c index 6be1a36c..beb640b2 100644 --- a/ip6tables-restore.c +++ b/ip6tables-restore.c @@ -127,9 +127,10 @@ int main(int argc, char *argv[]) int in_table = 0, testing = 0; program_name = "ip6tables-restore"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; line = 0; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); @@ -151,7 +152,7 @@ int main(int argc, char *argv[]) break; case 'h': print_usage("ip6tables-restore", - XTABLES_VERSION); + IPTABLES_VERSION); break; case 'n': noflush = 1; diff --git a/ip6tables-save.c b/ip6tables-save.c index 1b9d00ae..86ec6b26 100644 --- a/ip6tables-save.c +++ b/ip6tables-save.c @@ -76,7 +76,7 @@ static int do_output(const char *tablename) time_t now = time(NULL); printf("# Generated by ip6tables-save v%s on %s", - XTABLES_VERSION, ctime(&now)); + IPTABLES_VERSION, ctime(&now)); printf("*%s\n", tablename); /* Dump out chain names first, @@ -137,8 +137,9 @@ int main(int argc, char *argv[]) int c; program_name = "ip6tables-save"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); diff --git a/ip6tables-standalone.c b/ip6tables-standalone.c index 95435576..3ab114ea 100644 --- a/ip6tables-standalone.c +++ b/ip6tables-standalone.c @@ -50,8 +50,9 @@ main(int argc, char *argv[]) struct ip6tc_handle *handle = NULL; program_name = "ip6tables"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); diff --git a/iptables-restore.c b/iptables-restore.c index d982fca1..56812ee9 100644 --- a/iptables-restore.c +++ b/iptables-restore.c @@ -129,9 +129,10 @@ main(int argc, char *argv[]) const char *tablename = NULL; program_name = "iptables-restore"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; line = 0; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); @@ -153,7 +154,7 @@ main(int argc, char *argv[]) break; case 'h': print_usage("iptables-restore", - XTABLES_VERSION); + IPTABLES_VERSION); break; case 'n': noflush = 1; diff --git a/iptables-save.c b/iptables-save.c index e615de99..d08ec4b2 100644 --- a/iptables-save.c +++ b/iptables-save.c @@ -74,7 +74,7 @@ static int do_output(const char *tablename) time_t now = time(NULL); printf("# Generated by iptables-save v%s on %s", - XTABLES_VERSION, ctime(&now)); + IPTABLES_VERSION, ctime(&now)); printf("*%s\n", tablename); /* Dump out chain names first, @@ -137,8 +137,9 @@ main(int argc, char *argv[]) int c; program_name = "iptables-save"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); diff --git a/iptables-standalone.c b/iptables-standalone.c index c06b2862..91908732 100644 --- a/iptables-standalone.c +++ b/iptables-standalone.c @@ -51,8 +51,9 @@ main(int argc, char *argv[]) struct iptc_handle *handle = NULL; program_name = "iptables"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; + xtables_program_name = program_name; xtables_init(); #ifdef NO_SHARED_LIBS init_extensions(); diff --git a/iptables-xml.c b/iptables-xml.c index 6481b8e0..a3f69872 100644 --- a/iptables-xml.c +++ b/iptables-xml.c @@ -643,7 +643,7 @@ main(int argc, char *argv[]) FILE *in; program_name = "iptables-xml"; - program_version = XTABLES_VERSION; + program_version = IPTABLES_VERSION; line = 0; while ((c = getopt_long(argc, argv, "cvh", options, NULL)) != -1) { @@ -656,7 +656,7 @@ main(int argc, char *argv[]) verbose = 1; break; case 'h': - print_usage("iptables-xml", XTABLES_VERSION); + print_usage("iptables-xml", IPTABLES_VERSION); break; } } diff --git a/xtables.c b/xtables.c index 9e576794..642c04bb 100644 --- a/xtables.c +++ b/xtables.c @@ -44,6 +44,11 @@ #define PROC_SYS_MODPROBE "/proc/sys/kernel/modprobe" #endif +/** + * Program will set this to its own name. + */ +const char *xtables_program_name; + /* Search path for Xtables .so files */ static const char *xtables_libdir; @@ -529,23 +534,25 @@ void xtables_register_match(struct xtables_match *me) { struct xtables_match **i, *old; - if (strcmp(me->version, program_version) != 0) { - fprintf(stderr, "%s: match `%s' v%s (I'm v%s).\n", - program_name, me->name, me->version, program_version); + if (strcmp(me->version, XTABLES_VERSION) != 0) { + fprintf(stderr, "%s: match \"%s\" has version \"%s\", " + "but \"%s\" is required.\n", + xtables_program_name, me->name, + me->version, XTABLES_VERSION); exit(1); } /* Revision field stole a char from name. */ if (strlen(me->name) >= XT_FUNCTION_MAXNAMELEN-1) { fprintf(stderr, "%s: target `%s' has invalid name\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } if (me->family >= NPROTO) { fprintf(stderr, "%s: BUG: match %s has invalid protocol family\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } @@ -559,7 +566,7 @@ void xtables_register_match(struct xtables_match *me) old->family == me->family) { fprintf(stderr, "%s: match `%s' already registered.\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } @@ -583,7 +590,7 @@ void xtables_register_match(struct xtables_match *me) if (me->size != XT_ALIGN(me->size)) { fprintf(stderr, "%s: match `%s' has invalid size %u.\n", - program_name, me->name, (unsigned int)me->size); + xtables_program_name, me->name, (unsigned int)me->size); exit(1); } @@ -600,23 +607,25 @@ void xtables_register_target(struct xtables_target *me) { struct xtables_target *old; - if (strcmp(me->version, program_version) != 0) { - fprintf(stderr, "%s: target `%s' v%s (I'm v%s).\n", - program_name, me->name, me->version, program_version); + if (strcmp(me->version, XTABLES_VERSION) != 0) { + fprintf(stderr, "%s: target \"%s\" has version \"%s\", " + "but \"%s\" is required.\n", + xtables_program_name, me->name, + me->version, XTABLES_VERSION); exit(1); } /* Revision field stole a char from name. */ if (strlen(me->name) >= XT_FUNCTION_MAXNAMELEN-1) { fprintf(stderr, "%s: target `%s' has invalid name\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } if (me->family >= NPROTO) { fprintf(stderr, "%s: BUG: target %s has invalid protocol family\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } @@ -632,7 +641,7 @@ void xtables_register_target(struct xtables_target *me) old->family == me->family) { fprintf(stderr, "%s: target `%s' already registered.\n", - program_name, me->name); + xtables_program_name, me->name); exit(1); } @@ -656,7 +665,7 @@ void xtables_register_target(struct xtables_target *me) if (me->size != XT_ALIGN(me->size)) { fprintf(stderr, "%s: target `%s' has invalid size %u.\n", - program_name, me->name, (unsigned int)me->size); + xtables_program_name, me->name, (unsigned int)me->size); exit(1); } -- cgit v1.2.3