* [PATCH 4/5] build: implement export symbols
2010-12-30 23:40 libnfnetlink: build improvements Jan Engelhardt
` (2 preceding siblings ...)
2010-12-30 23:40 ` [PATCH 3/5] utils: resolve compiler warning Jan Engelhardt
@ 2010-12-30 23:40 ` Jan Engelhardt
2011-01-06 2:41 ` Pablo Neira Ayuso
2010-12-30 23:40 ` [PATCH 5/5] src: remove redundant cast near msg_name Jan Engelhardt
4 siblings, 1 reply; 8+ messages in thread
From: Jan Engelhardt @ 2010-12-30 23:40 UTC (permalink / raw)
To: pablo; +Cc: netfilter-devel
This removed the rtnl symbols (7 pieces) that are not usable (there
are no prototypes in libnfnetlink.h) from the .dynsym section of the
library.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---
.gitignore | 1 +
Make_global.am | 2 +-
configure.ac | 2 +
m4/gcc4_visibility.m4 | 21 +++++++
src/iftable.c | 23 ++++----
src/internal.h | 12 ++++
src/libnfnetlink.c | 159 ++++++++++++++++++++++++++++---------------------
7 files changed, 140 insertions(+), 80 deletions(-)
create mode 100644 m4/gcc4_visibility.m4
create mode 100644 src/internal.h
diff --git a/.gitignore b/.gitignore
index 6f5ca1f..8c311aa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,5 +15,6 @@ Makefile.in
/libtool
/ltmain.sh
/missing
+/stamp-h1
/*.pc
diff --git a/Make_global.am b/Make_global.am
index f091860..1837a62 100644
--- a/Make_global.am
+++ b/Make_global.am
@@ -5,4 +5,4 @@
LIBVERSION=2:0:2
AM_CPPFLAGS = -I$(top_srcdir)/include
-AM_CFLAGS = -Wall
+AM_CFLAGS = -Wall ${GCC_FVISIBILITY_HIDDEN}
diff --git a/configure.ac b/configure.ac
index dedf2f8..c99f07d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,6 +2,7 @@ dnl Process this file with autoconf to create configure.
AC_INIT(libnfnetlink, 1.0.0)
AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_HEADERS([config.h])
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([-Wall foreign subdir-objects dist-bzip2 1.6])
@@ -10,6 +11,7 @@ AC_PROG_CC
AC_EXEEXT
AC_DISABLE_STATIC
AM_PROG_LIBTOOL
+CHECK_GCC_FVISIBILITY
case "$host" in
*-*-linux*) ;;
diff --git a/m4/gcc4_visibility.m4 b/m4/gcc4_visibility.m4
new file mode 100644
index 0000000..84959f3
--- /dev/null
+++ b/m4/gcc4_visibility.m4
@@ -0,0 +1,21 @@
+
+# GCC 4.x -fvisibility=hidden
+
+AC_DEFUN([CHECK_GCC_FVISIBILITY], [
+ AC_LANG_PUSH([C])
+ saved_CFLAGS="$CFLAGS"
+ CFLAGS="$saved_CFLAGS -fvisibility=hidden"
+ AC_CACHE_CHECK([whether compiler accepts -fvisibility=hidden],
+ [ac_cv_fvisibility_hidden], AC_COMPILE_IFELSE(
+ AC_LANG_PROGRAM([], []),
+ [ac_cv_fvisibility_hidden=yes],
+ [ac_cv_fvisibility_hidden=no]
+ ))
+ if test "$ac_cv_fvisibility_hidden" = "yes"; then
+ AC_DEFINE([HAVE_VISIBILITY_HIDDEN], [1],
+ [True if compiler supports -fvisibility=hidden])
+ AC_SUBST([GCC_FVISIBILITY_HIDDEN], [-fvisibility=hidden])
+ fi
+ CFLAGS="$saved_CFLAGS"
+ AC_LANG_POP([C])
+])
diff --git a/src/iftable.c b/src/iftable.c
index 959249a..9767408 100644
--- a/src/iftable.c
+++ b/src/iftable.c
@@ -23,6 +23,7 @@
#include <libnfnetlink/libnfnetlink.h>
#include "rtnl.h"
#include "linux_list.h"
+#include "internal.h"
struct ifindex_node {
struct list_head head;
@@ -146,9 +147,8 @@ static int iftable_del(struct nlmsghdr *n, void *arg)
* \param name interface name, pass a buffer of IFNAMSIZ size
* \return -1 on error, 1 on success
*/
-int nlif_index2name(struct nlif_handle *h,
- unsigned int index,
- char *name)
+EXPORT_SYMBOL int
+nlif_index2name(struct nlif_handle *h, unsigned int index, char *name)
{
unsigned int hash;
struct ifindex_node *this;
@@ -180,9 +180,10 @@ int nlif_index2name(struct nlif_handle *h,
* \param flags pointer to variable used to store the interface flags
* \return -1 on error, 1 on success
*/
-int nlif_get_ifflags(const struct nlif_handle *h,
- unsigned int index,
- unsigned int *flags)
+EXPORT_SYMBOL int
+nlif_get_ifflags(const struct nlif_handle *h,
+ unsigned int index,
+ unsigned int *flags)
{
unsigned int hash;
struct ifindex_node *this;
@@ -213,7 +214,7 @@ int nlif_get_ifflags(const struct nlif_handle *h,
*
* \return file descriptor to netlink socket
*/
-struct nlif_handle *nlif_open(void)
+EXPORT_SYMBOL struct nlif_handle *nlif_open(void)
{
int i;
struct nlif_handle *h;
@@ -258,7 +259,7 @@ err:
* \param nlif_handle A pointer to a ::nlif_handle created
* via nlif_open()
*/
-void nlif_close(struct nlif_handle *h)
+EXPORT_SYMBOL void nlif_close(struct nlif_handle *h)
{
int i;
struct ifindex_node *this, *tmp;
@@ -285,7 +286,7 @@ void nlif_close(struct nlif_handle *h)
* \param nlif_handle A pointer to a ::nlif_handle created
* \return 0 if OK
*/
-int nlif_catch(struct nlif_handle *h)
+EXPORT_SYMBOL int nlif_catch(struct nlif_handle *h)
{
assert(h != NULL);
@@ -299,7 +300,7 @@ int nlif_catch(struct nlif_handle *h)
* nlif_query - request a dump of interfaces available in the system
* @h: pointer to a valid nlif_handler
*/
-int nlif_query(struct nlif_handle *h)
+EXPORT_SYMBOL int nlif_query(struct nlif_handle *h)
{
assert(h != NULL);
@@ -314,7 +315,7 @@ int nlif_query(struct nlif_handle *h)
* \param nlif_handle A pointer to a ::nlif_handle created
* \return The fd or -1 if there's an error
*/
-int nlif_fd(struct nlif_handle *h)
+EXPORT_SYMBOL int nlif_fd(struct nlif_handle *h)
{
assert(h != NULL);
diff --git a/src/internal.h b/src/internal.h
new file mode 100644
index 0000000..a6aa7d1
--- /dev/null
+++ b/src/internal.h
@@ -0,0 +1,12 @@
+#ifndef INTERNAL_H
+#define INTERNAL_H 1
+
+#include "config.h"
+#ifdef HAVE_VISIBILITY_HIDDEN
+# define EXPORT_SYMBOL __attribute__((visibility("default")))
+#else
+# define EXPORT_SYMBOL
+#endif
+
+#endif /* INTERNAL_H */
+
diff --git a/src/libnfnetlink.c b/src/libnfnetlink.c
index 6e7afc6..fdd7d01 100644
--- a/src/libnfnetlink.c
+++ b/src/libnfnetlink.c
@@ -50,6 +50,7 @@
#include <linux/netlink.h>
#include <libnfnetlink/libnfnetlink.h>
+#include "internal.h"
#ifndef NETLINK_ADD_MEMBERSHIP
#define NETLINK_ADD_MEMBERSHIP 1
@@ -94,7 +95,8 @@ struct nfnl_handle {
struct nfnl_subsys_handle subsys[NFNL_MAX_SUBSYS+1];
};
-void nfnl_dump_packet(struct nlmsghdr *nlh, int received_len, char *desc)
+EXPORT_SYMBOL void
+nfnl_dump_packet(struct nlmsghdr *nlh, int received_len, char *desc)
{
void *nlmsg_data = NLMSG_DATA(nlh);
struct nfattr *nfa = NFM_NFA(NLMSG_DATA(nlh));
@@ -125,7 +127,7 @@ void nfnl_dump_packet(struct nlmsghdr *nlh, int received_len, char *desc)
* Use this function if you need to interact with the socket. Common
* scenarios are the use of poll()/select() to achieve multiplexation.
*/
-int nfnl_fd(struct nfnl_handle *h)
+EXPORT_SYMBOL int nfnl_fd(struct nfnl_handle *h)
{
assert(h);
return h->fd;
@@ -135,7 +137,7 @@ int nfnl_fd(struct nfnl_handle *h)
* nfnl_portid - returns the Netlink port ID of this socket
* @h: nfnetlink handler
*/
-unsigned int nfnl_portid(const struct nfnl_handle *h)
+EXPORT_SYMBOL unsigned int nfnl_portid(const struct nfnl_handle *h)
{
assert(h);
return h->local.nl_pid;
@@ -169,7 +171,7 @@ static int recalc_rebind_subscriptions(struct nfnl_handle *nfnlh)
* On success, a valid address that points to a nfnl_handle structure
* is returned. On error, NULL is returned and errno is set approapiately.
*/
-struct nfnl_handle *nfnl_open(void)
+EXPORT_SYMBOL struct nfnl_handle *nfnl_open(void)
{
struct nfnl_handle *nfnlh;
unsigned int addr_len;
@@ -232,7 +234,7 @@ err_free:
* nfnl_set_sequence_tracking - set netlink sequence tracking
* @h: nfnetlink handler
*/
-void nfnl_set_sequence_tracking(struct nfnl_handle *h)
+EXPORT_SYMBOL void nfnl_set_sequence_tracking(struct nfnl_handle *h)
{
h->flags |= NFNL_F_SEQTRACK_ENABLED;
}
@@ -241,7 +243,7 @@ void nfnl_set_sequence_tracking(struct nfnl_handle *h)
* nfnl_unset_sequence_tracking - set netlink sequence tracking
* @h: nfnetlink handler
*/
-void nfnl_unset_sequence_tracking(struct nfnl_handle *h)
+EXPORT_SYMBOL void nfnl_unset_sequence_tracking(struct nfnl_handle *h)
{
h->flags &= ~NFNL_F_SEQTRACK_ENABLED;
}
@@ -254,7 +256,8 @@ void nfnl_unset_sequence_tracking(struct nfnl_handle *h)
* This function sets the size of the receive buffer size, i.e. the size
* of the buffer used by nfnl_recv. Default value is 4096 bytes.
*/
-void nfnl_set_rcv_buffer_size(struct nfnl_handle *h, unsigned int size)
+EXPORT_SYMBOL void
+nfnl_set_rcv_buffer_size(struct nfnl_handle *h, unsigned int size)
{
h->rcv_buffer_size = size;
}
@@ -274,7 +277,7 @@ void nfnl_set_rcv_buffer_size(struct nfnl_handle *h, unsigned int size)
* On error, NULL is returned and errno is set appropiately. On success,
* a valid address that points to a nfnl_subsys_handle structure is returned.
*/
-struct nfnl_subsys_handle *
+EXPORT_SYMBOL struct nfnl_subsys_handle *
nfnl_subsys_open(struct nfnl_handle *nfnlh, u_int8_t subsys_id,
u_int8_t cb_count, u_int32_t subscriptions)
{
@@ -319,7 +322,7 @@ nfnl_subsys_open(struct nfnl_handle *nfnlh, u_int8_t subsys_id,
*
* Release all the callbacks registered in a subsystem handler.
*/
-void nfnl_subsys_close(struct nfnl_subsys_handle *ssh)
+EXPORT_SYMBOL void nfnl_subsys_close(struct nfnl_subsys_handle *ssh)
{
assert(ssh);
@@ -338,7 +341,7 @@ void nfnl_subsys_close(struct nfnl_subsys_handle *ssh)
* This function closes the nfnetlink handler. On success, 0 is returned.
* On error, -1 is returned and errno is set appropiately.
*/
-int nfnl_close(struct nfnl_handle *nfnlh)
+EXPORT_SYMBOL int nfnl_close(struct nfnl_handle *nfnlh)
{
int i, ret;
@@ -368,7 +371,8 @@ int nfnl_close(struct nfnl_handle *nfnlh)
* On success, 0 is returned. On error, -1 is returned and errno is set
* approapiately.
*/
-int nfnl_join(const struct nfnl_handle *nfnlh, unsigned int group)
+EXPORT_SYMBOL int
+nfnl_join(const struct nfnl_handle *nfnlh, unsigned int group)
{
assert(nfnlh);
return setsockopt(nfnlh->fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP,
@@ -383,7 +387,7 @@ int nfnl_join(const struct nfnl_handle *nfnlh, unsigned int group)
* On success, the number of bytes is returned. On error, -1 is returned
* and errno is set appropiately.
*/
-int nfnl_send(struct nfnl_handle *nfnlh, struct nlmsghdr *n)
+EXPORT_SYMBOL int nfnl_send(struct nfnl_handle *nfnlh, struct nlmsghdr *n)
{
assert(nfnlh);
assert(n);
@@ -394,8 +398,9 @@ int nfnl_send(struct nfnl_handle *nfnlh, struct nlmsghdr *n)
(struct sockaddr *)&nfnlh->peer, sizeof(nfnlh->peer));
}
-int nfnl_sendmsg(const struct nfnl_handle *nfnlh, const struct msghdr *msg,
- unsigned int flags)
+EXPORT_SYMBOL int
+nfnl_sendmsg(const struct nfnl_handle *nfnlh, const struct msghdr *msg,
+ unsigned int flags)
{
assert(nfnlh);
assert(msg);
@@ -403,8 +408,9 @@ int nfnl_sendmsg(const struct nfnl_handle *nfnlh, const struct msghdr *msg,
return sendmsg(nfnlh->fd, msg, flags);
}
-int nfnl_sendiov(const struct nfnl_handle *nfnlh, const struct iovec *iov,
- unsigned int num, unsigned int flags)
+EXPORT_SYMBOL int
+nfnl_sendiov(const struct nfnl_handle *nfnlh, const struct iovec *iov,
+ unsigned int num, unsigned int flags)
{
struct msghdr msg;
@@ -435,12 +441,13 @@ int nfnl_sendiov(const struct nfnl_handle *nfnlh, const struct iovec *iov,
* pointer to the netlink message passed must point to a memory region of
* at least the size of struct nlmsghdr + struct nfgenmsg.
*/
-void nfnl_fill_hdr(struct nfnl_subsys_handle *ssh,
- struct nlmsghdr *nlh, unsigned int len,
- u_int8_t family,
- u_int16_t res_id,
- u_int16_t msg_type,
- u_int16_t msg_flags)
+EXPORT_SYMBOL void
+nfnl_fill_hdr(struct nfnl_subsys_handle *ssh,
+ struct nlmsghdr *nlh, unsigned int len,
+ u_int8_t family,
+ u_int16_t res_id,
+ u_int16_t msg_type,
+ u_int16_t msg_flags)
{
assert(ssh);
assert(nlh);
@@ -467,7 +474,7 @@ void nfnl_fill_hdr(struct nfnl_subsys_handle *ssh,
nfg->res_id = htons(res_id);
}
-struct nfattr *
+EXPORT_SYMBOL struct nfattr *
nfnl_parse_hdr(const struct nfnl_handle *nfnlh,
const struct nlmsghdr *nlh,
struct nfgenmsg **genmsg)
@@ -503,7 +510,7 @@ nfnl_parse_hdr(const struct nfnl_handle *nfnlh,
* Note that ENOBUFS is returned in case that nfnetlink is exhausted. In
* that case is possible that the information requested is incomplete.
*/
-ssize_t
+EXPORT_SYMBOL ssize_t
nfnl_recv(const struct nfnl_handle *h, unsigned char *buf, size_t len)
{
socklen_t addrlen;
@@ -561,9 +568,10 @@ nfnl_recv(const struct nfnl_handle *h, unsigned char *buf, size_t len)
* appropiately. For that reason, the use of this function is DEPRECATED.
* Please, use nfnl_receive_process() instead.
*/
-int nfnl_listen(struct nfnl_handle *nfnlh,
- int (*handler)(struct sockaddr_nl *, struct nlmsghdr *n,
- void *), void *jarg)
+EXPORT_SYMBOL int
+nfnl_listen(struct nfnl_handle *nfnlh,
+ int (*handler)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
+ void *jarg)
{
struct sockaddr_nl nladdr;
char buf[NFNL_BUFFSIZE] __attribute__ ((aligned));
@@ -670,10 +678,11 @@ int nfnl_listen(struct nfnl_handle *nfnlh,
* set appropiately. For that reason, the use of this function is DEPRECATED.
* Please, use nfnl_query() instead.
*/
-int nfnl_talk(struct nfnl_handle *nfnlh, struct nlmsghdr *n, pid_t peer,
- unsigned groups, struct nlmsghdr *answer,
- int (*junk)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
- void *jarg)
+EXPORT_SYMBOL int
+nfnl_talk(struct nfnl_handle *nfnlh, struct nlmsghdr *n, pid_t peer,
+ unsigned groups, struct nlmsghdr *answer,
+ int (*junk)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
+ void *jarg)
{
char buf[NFNL_BUFFSIZE] __attribute__ ((aligned));
struct sockaddr_nl nladdr;
@@ -794,8 +803,9 @@ cont:
* @data: content of new attribute
* @len: attribute length
*/
-int nfnl_addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
- int alen)
+EXPORT_SYMBOL int
+nfnl_addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
+ int alen)
{
int len = NFA_LENGTH(alen);
struct nfattr *nfa;
@@ -827,8 +837,9 @@ int nfnl_addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
* @alen: length of new attribute
*
*/
-int nfnl_nfa_addattr_l(struct nfattr *nfa, int maxlen, int type,
- const void *data, int alen)
+EXPORT_SYMBOL int
+nfnl_nfa_addattr_l(struct nfattr *nfa, int maxlen, int type,
+ const void *data, int alen)
{
struct nfattr *subnfa;
int len = NFA_LENGTH(alen);
@@ -859,7 +870,8 @@ int nfnl_nfa_addattr_l(struct nfattr *nfa, int maxlen, int type,
* @type: type of new attribute
* @data: content of new attribute
*/
-int nfnl_addattr8(struct nlmsghdr *n, int maxlen, int type, u_int8_t data)
+EXPORT_SYMBOL int
+nfnl_addattr8(struct nlmsghdr *n, int maxlen, int type, u_int8_t data)
{
assert(n);
assert(maxlen > 0);
@@ -877,8 +889,8 @@ int nfnl_addattr8(struct nlmsghdr *n, int maxlen, int type, u_int8_t data)
* @data: content of new attribute
*
*/
-int nfnl_nfa_addattr16(struct nfattr *nfa, int maxlen, int type,
- u_int16_t data)
+EXPORT_SYMBOL int
+nfnl_nfa_addattr16(struct nfattr *nfa, int maxlen, int type, u_int16_t data)
{
assert(nfa);
assert(maxlen > 0);
@@ -896,8 +908,8 @@ int nfnl_nfa_addattr16(struct nfattr *nfa, int maxlen, int type,
* @data: content of new attribute
*
*/
-int nfnl_addattr16(struct nlmsghdr *n, int maxlen, int type,
- u_int16_t data)
+EXPORT_SYMBOL int
+nfnl_addattr16(struct nlmsghdr *n, int maxlen, int type, u_int16_t data)
{
assert(n);
assert(maxlen > 0);
@@ -915,8 +927,8 @@ int nfnl_addattr16(struct nlmsghdr *n, int maxlen, int type,
* @data: content of new attribute
*
*/
-int nfnl_nfa_addattr32(struct nfattr *nfa, int maxlen, int type,
- u_int32_t data)
+EXPORT_SYMBOL int
+nfnl_nfa_addattr32(struct nfattr *nfa, int maxlen, int type, u_int32_t data)
{
assert(nfa);
assert(maxlen > 0);
@@ -934,8 +946,8 @@ int nfnl_nfa_addattr32(struct nfattr *nfa, int maxlen, int type,
* @data: content of new attribute
*
*/
-int nfnl_addattr32(struct nlmsghdr *n, int maxlen, int type,
- u_int32_t data)
+EXPORT_SYMBOL int
+nfnl_addattr32(struct nlmsghdr *n, int maxlen, int type, u_int32_t data)
{
assert(n);
assert(maxlen > 0);
@@ -955,7 +967,8 @@ int nfnl_addattr32(struct nlmsghdr *n, int maxlen, int type,
* The returned value is equal to the number of remaining bytes of the netlink
* message that cannot be parsed.
*/
-int nfnl_parse_attr(struct nfattr *tb[], int max, struct nfattr *nfa, int len)
+EXPORT_SYMBOL int
+nfnl_parse_attr(struct nfattr *tb[], int max, struct nfattr *nfa, int len)
{
assert(tb);
assert(max > 0);
@@ -982,8 +995,9 @@ int nfnl_parse_attr(struct nfattr *tb[], int max, struct nfattr *nfa, int len)
* @val: pointer to buffer containing 'value'
*
*/
-void nfnl_build_nfa_iovec(struct iovec *iov, struct nfattr *nfa,
- u_int16_t type, u_int32_t len, unsigned char *val)
+EXPORT_SYMBOL void
+nfnl_build_nfa_iovec(struct iovec *iov, struct nfattr *nfa,
+ u_int16_t type, u_int32_t len, unsigned char *val)
{
assert(iov);
assert(nfa);
@@ -1013,7 +1027,8 @@ void nfnl_build_nfa_iovec(struct iovec *iov, struct nfattr *nfa,
*
* This function returns the new size of the socket buffer.
*/
-unsigned int nfnl_rcvbufsiz(const struct nfnl_handle *h, unsigned int size)
+EXPORT_SYMBOL unsigned int
+nfnl_rcvbufsiz(const struct nfnl_handle *h, unsigned int size)
{
int status;
socklen_t socklen = sizeof(size);
@@ -1047,9 +1062,10 @@ unsigned int nfnl_rcvbufsiz(const struct nfnl_handle *h, unsigned int size)
* On success, a valid address that points to the netlink message is returned.
* On error, NULL is returned.
*/
-struct nlmsghdr *nfnl_get_msg_first(struct nfnl_handle *h,
- const unsigned char *buf,
- size_t len)
+EXPORT_SYMBOL struct nlmsghdr *
+nfnl_get_msg_first(struct nfnl_handle *h,
+ const unsigned char *buf,
+ size_t len)
{
struct nlmsghdr *nlh;
@@ -1066,9 +1082,10 @@ struct nlmsghdr *nfnl_get_msg_first(struct nfnl_handle *h,
return nlh;
}
-struct nlmsghdr *nfnl_get_msg_next(struct nfnl_handle *h,
- const unsigned char *buf,
- size_t len)
+EXPORT_SYMBOL struct nlmsghdr *
+nfnl_get_msg_next(struct nfnl_handle *h,
+ const unsigned char *buf,
+ size_t len)
{
struct nlmsghdr *nlh;
size_t remain_len;
@@ -1117,8 +1134,9 @@ struct nlmsghdr *nfnl_get_msg_next(struct nfnl_handle *h,
* On success, 0 is returned. On error, -1 is returned and errno is set
* appropiately.
*/
-int nfnl_callback_register(struct nfnl_subsys_handle *ssh,
- u_int8_t type, struct nfnl_callback *cb)
+EXPORT_SYMBOL int
+nfnl_callback_register(struct nfnl_subsys_handle *ssh,
+ u_int8_t type, struct nfnl_callback *cb)
{
assert(ssh);
assert(cb);
@@ -1141,7 +1159,8 @@ int nfnl_callback_register(struct nfnl_subsys_handle *ssh,
* On sucess, 0 is returned. On error, -1 is returned and errno is
* set appropiately.
*/
-int nfnl_callback_unregister(struct nfnl_subsys_handle *ssh, u_int8_t type)
+EXPORT_SYMBOL int
+nfnl_callback_unregister(struct nfnl_subsys_handle *ssh, u_int8_t type)
{
assert(ssh);
@@ -1155,9 +1174,10 @@ int nfnl_callback_unregister(struct nfnl_subsys_handle *ssh, u_int8_t type)
return 0;
}
-int nfnl_check_attributes(const struct nfnl_handle *h,
- const struct nlmsghdr *nlh,
- struct nfattr *nfa[])
+EXPORT_SYMBOL int
+nfnl_check_attributes(const struct nfnl_handle *h,
+ const struct nlmsghdr *nlh,
+ struct nfattr *nfa[])
{
assert(h);
assert(nlh);
@@ -1242,7 +1262,7 @@ static int __nfnl_handle_msg(struct nfnl_handle *h, struct nlmsghdr *nlh,
return 0;
}
-int nfnl_handle_packet(struct nfnl_handle *h, char *buf, int len)
+EXPORT_SYMBOL int nfnl_handle_packet(struct nfnl_handle *h, char *buf, int len)
{
while (len >= NLMSG_SPACE(0)) {
@@ -1370,7 +1390,8 @@ static int nfnl_step(struct nfnl_handle *h, struct nlmsghdr *nlh)
* for any reason, then it must return NFNL_CB_STOP. Otherwise, if the
* callback continues the processing NFNL_CB_CONTINUE is returned.
*/
-int nfnl_process(struct nfnl_handle *h, const unsigned char *buf, size_t len)
+EXPORT_SYMBOL int
+nfnl_process(struct nfnl_handle *h, const unsigned char *buf, size_t len)
{
int ret = 0;
struct nlmsghdr *nlh = (struct nlmsghdr *)buf;
@@ -1417,7 +1438,7 @@ struct nfnl_iterator {
* On success, a valid address is returned. On error, NULL is returned
* and errno is set to the appropiate value.
*/
-struct nfnl_iterator *
+EXPORT_SYMBOL struct nfnl_iterator *
nfnl_iterator_create(const struct nfnl_handle *h,
const char *buf,
size_t len)
@@ -1454,7 +1475,7 @@ nfnl_iterator_create(const struct nfnl_handle *h,
*
* This function destroys a certain iterator. Nothing is returned.
*/
-void nfnl_iterator_destroy(struct nfnl_iterator *it)
+EXPORT_SYMBOL void nfnl_iterator_destroy(struct nfnl_iterator *it)
{
assert(it);
free(it);
@@ -1469,7 +1490,8 @@ void nfnl_iterator_destroy(struct nfnl_iterator *it)
* On success, a value greater or equal to zero is returned. On error,
* -1 is returned and errno is appropiately set.
*/
-int nfnl_iterator_process(struct nfnl_handle *h, struct nfnl_iterator *it)
+EXPORT_SYMBOL int
+nfnl_iterator_process(struct nfnl_handle *h, struct nfnl_iterator *it)
{
assert(h);
assert(it->nlh);
@@ -1495,7 +1517,8 @@ int nfnl_iterator_process(struct nfnl_handle *h, struct nfnl_iterator *it)
* It returns NFNL_CB_CONTINUE if there is still more messages to be
* processed, otherwise NFNL_CB_STOP is returned.
*/
-int nfnl_iterator_next(const struct nfnl_handle *h, struct nfnl_iterator *it)
+EXPORT_SYMBOL int
+nfnl_iterator_next(const struct nfnl_handle *h, struct nfnl_iterator *it)
{
assert(h);
assert(it);
@@ -1522,7 +1545,7 @@ int nfnl_iterator_next(const struct nfnl_handle *h, struct nfnl_iterator *it)
* Note that ENOBUFS is returned in case that nfnetlink is exhausted. In
* that case is possible that the information requested is incomplete.
*/
-int nfnl_catch(struct nfnl_handle *h)
+EXPORT_SYMBOL int nfnl_catch(struct nfnl_handle *h)
{
int ret;
@@ -1565,7 +1588,7 @@ int nfnl_catch(struct nfnl_handle *h)
* Note that ENOBUFS is returned in case that nfnetlink is exhausted. In
* that case is possible that the information requested is incomplete.
*/
-int nfnl_query(struct nfnl_handle *h, struct nlmsghdr *nlh)
+EXPORT_SYMBOL int nfnl_query(struct nfnl_handle *h, struct nlmsghdr *nlh)
{
assert(h);
assert(nlh);
--
1.7.1
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