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-rw-r--r--ChangeLog8
-rw-r--r--include/sys/socket.h7
-rw-r--r--inet/netinet/in.h45
-rw-r--r--sysdeps/unix/sysv/linux/getipv4sourcefilter.c71
-rw-r--r--sysdeps/unix/sysv/linux/getsourcefilter.c72
-rw-r--r--sysdeps/unix/sysv/linux/setipv4sourcefilter.c64
-rw-r--r--sysdeps/unix/sysv/linux/setsourcefilter.c65
7 files changed, 332 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog
index 096b505dfd..b9d6fcd06d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
2004-08-05 Ulrich Drepper <drepper@redhat.com>
+ * inet/netinet/in.h: Define struct ip_msfilter, IP_MSFILTER_SIZE,
+ struct group_filter, and GROUP_FILTER_SIZE.
+ * include/sys/socket.h: Declare __getsockopt.
+ * sysdeps/unix/sysv/linux/setipv4sourcefilter.c: New file.
+ * sysdeps/unix/sysv/linux/getipv4sourcefilter.c: New file.
+ * sysdeps/unix/sysv/linux/setsourcefilter.c: New file.
+ * sysdeps/unix/sysv/linux/getsourcefilter.c: New file.
+
* po/ko.po: Update from translation team.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
diff --git a/include/sys/socket.h b/include/sys/socket.h
index 05798095f8..937909a125 100644
--- a/include/sys/socket.h
+++ b/include/sys/socket.h
@@ -97,6 +97,13 @@ extern int __setsockopt (int __fd, int __level, int __optname,
__const void *__optval,
socklen_t __optlen) attribute_hidden;
+/* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
+ into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
+ actual length. Returns 0 on success, -1 for errors. */
+extern int __getsockopt (int __fd, int __level, int __optname,
+ void *__restrict __optval,
+ socklen_t *__restrict __optlen) attribute_hidden;
+
/* Put the local address of FD into *ADDR and its length in *LEN. */
extern int __getsockname (int __fd, __SOCKADDR_ARG __addr,
socklen_t *__restrict __len) attribute_hidden;
diff --git a/inet/netinet/in.h b/inet/netinet/in.h
index bdf4e5dc2c..0922dc789b 100644
--- a/inet/netinet/in.h
+++ b/inet/netinet/in.h
@@ -296,6 +296,51 @@ struct group_source_req
};
+/* Full-state filter operations. */
+struct ip_msfilter
+ {
+ /* IP multicast address of group. */
+ struct in_addr imsf_multiaddr;
+
+ /* Local IP address of interface. */
+ struct in_addr imsf_interface;
+
+ /* Filter mode. */
+ uint32_t imsf_fmode;
+
+ /* Number of source addresses. */
+ uint32_t imsf_numsrc;
+ /* Source addresses. */
+ struct in_addr imsf_slist[1];
+ };
+
+#define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \
+ - sizeof (struct in_addr) \
+ + (numsrc) * sizeof (struct in_addr))
+
+struct group_filter
+ {
+ /* Interface index. */
+ uint32_t gf_interface;
+
+ /* Group address. */
+ struct sockaddr_storage gf_group;
+
+ /* Filter mode. */
+ uint32_t gf_fmode;
+
+ /* Number of source addresses. */
+ uint32_t gf_numsrc;
+ /* Source addresses. */
+ struct sockaddr_storage gf_slist[1];
+};
+
+#define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \
+ - sizeof (struct sockaddr_storage) \
+ + ((numsrc) \
+ * sizeof (struct sockaddr_storage)))
+
+
/* Get system-specific definitions. */
#include <bits/in.h>
diff --git a/sysdeps/unix/sysv/linux/getipv4sourcefilter.c b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
new file mode 100644
index 0000000000..7fad6a7c82
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getipv4sourcefilter.c
@@ -0,0 +1,71 @@
+/* Get IPv4 source filter. Linux version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <alloca.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+
+int
+getipv4sourcefilter (int s, struct in_addr interface, struct in_addr group,
+ uint32_t *fmode, uint32_t *numsrc, struct in_addr *slist)
+{
+ /* We have to create an struct ip_msfilter object which we can pass
+ to the kernel. */
+ socklen_t needed = IP_MSFILTER_SIZE (*numsrc);
+ int use_malloc = __libc_use_alloca (needed);
+
+ struct ip_msfilter *imsf;
+ if (use_malloc)
+ {
+ imsf = (struct ip_msfilter *) malloc (needed);
+ if (imsf == NULL)
+ return -1;
+ }
+ else
+ imsf = (struct ip_msfilter *) alloca (needed);
+
+ imsf->imsf_multiaddr = group;
+ imsf->imsf_interface = interface;
+
+ int result = __getsockopt (s, SOL_IP, IP_MSFILTER, imsf, &needed);
+
+ /* If successful, copy the results to the places the caller wants
+ them in. */
+ if (result == 0)
+ {
+ *fmode = imsf->imsf_fmode;
+ *numsrc = imsf->imsf_numsrc;
+ memcpy (slist, imsf->imsf_slist,
+ imsf->imsf_numsrc * sizeof (struct in_addr));
+ }
+
+ if (use_malloc)
+ {
+ int save_errno = errno;
+ free (imsf);
+ __set_errno (save_errno);
+ }
+
+ return result;
+}
diff --git a/sysdeps/unix/sysv/linux/getsourcefilter.c b/sysdeps/unix/sysv/linux/getsourcefilter.c
new file mode 100644
index 0000000000..43936c896b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getsourcefilter.c
@@ -0,0 +1,72 @@
+/* Get source filter. Linux version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <alloca.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+
+int
+getsourcefilter (int s, uint32_t interface, struct sockaddr *group,
+ socklen_t grouplen, uint32_t *fmode, uint32_t *numsrc,
+ struct sockaddr_storage *slist)
+{
+ /* We have to create an struct ip_msfilter object which we can pass
+ to the kernel. */
+ socklen_t needed = GROUP_FILTER_SIZE (*numsrc);
+ int use_malloc = __libc_use_alloca (needed);
+
+ struct group_filter *gf;
+ if (use_malloc)
+ {
+ gf = (struct group_filter *) malloc (needed);
+ if (gf == NULL)
+ return -1;
+ }
+ else
+ gf = (struct group_filter *) alloca (needed);
+
+ gf->gf_interface = interface;
+ memcpy (&gf->gf_group, group, grouplen);
+
+ int result = __getsockopt (s, SOL_IP, MCAST_MSFILTER, gf, &needed);
+
+ /* If successful, copy the results to the places the caller wants
+ them in. */
+ if (result == 0)
+ {
+ *fmode = gf->gf_fmode;
+ *numsrc = gf->gf_numsrc;
+ memcpy (slist, gf->gf_slist,
+ gf->gf_numsrc * sizeof (struct sockaddr_storage));
+ }
+
+ if (use_malloc)
+ {
+ int save_errno = errno;
+ free (gf);
+ __set_errno (save_errno);
+ }
+
+ return result;
+}
diff --git a/sysdeps/unix/sysv/linux/setipv4sourcefilter.c b/sysdeps/unix/sysv/linux/setipv4sourcefilter.c
new file mode 100644
index 0000000000..aef7f8b205
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setipv4sourcefilter.c
@@ -0,0 +1,64 @@
+/* Set IPv4 source filter. Linux version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <alloca.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+
+int
+setipv4sourcefilter (int s, struct in_addr interface, struct in_addr group,
+ uint32_t fmode, uint32_t numsrc, struct in_addr *slist)
+{
+ /* We have to create an struct ip_msfilter object which we can pass
+ to the kernel. */
+ size_t needed = IP_MSFILTER_SIZE (numsrc);
+ int use_malloc = __libc_use_alloca (needed);
+
+ struct ip_msfilter *imsf;
+ if (use_malloc)
+ {
+ imsf = (struct ip_msfilter *) malloc (needed);
+ if (imsf == NULL)
+ return -1;
+ }
+ else
+ imsf = (struct ip_msfilter *) alloca (needed);
+
+ imsf->imsf_multiaddr = group;
+ imsf->imsf_interface = interface;
+ imsf->imsf_fmode = fmode;
+ imsf->imsf_numsrc = numsrc;
+ memcpy (imsf->imsf_slist, slist, numsrc * sizeof (struct in_addr));
+
+ int result = __setsockopt (s, SOL_IP, IP_MSFILTER, imsf, needed);
+
+ if (use_malloc)
+ {
+ int save_errno = errno;
+ free (imsf);
+ __set_errno (save_errno);
+ }
+
+ return result;
+}
diff --git a/sysdeps/unix/sysv/linux/setsourcefilter.c b/sysdeps/unix/sysv/linux/setsourcefilter.c
new file mode 100644
index 0000000000..f9f75c43cd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setsourcefilter.c
@@ -0,0 +1,65 @@
+/* Set source filter. Linux version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <alloca.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+
+int
+setsourcefilter (int s, uint32_t interface, struct sockaddr *group,
+ socklen_t grouplen, uint32_t fmode, uint32_t numsrc,
+ struct sockaddr_storage *slist)
+{
+ /* We have to create an struct ip_msfilter object which we can pass
+ to the kernel. */
+ size_t needed = GROUP_FILTER_SIZE (numsrc);
+ int use_malloc = __libc_use_alloca (needed);
+
+ struct group_filter *gf;
+ if (use_malloc)
+ {
+ gf = (struct group_filter *) malloc (needed);
+ if (gf == NULL)
+ return -1;
+ }
+ else
+ gf = (struct group_filter *) alloca (needed);
+
+ gf->gf_interface = interface;
+ memcpy (&gf->gf_group, group, grouplen);
+ gf->gf_fmode = fmode;
+ gf->gf_numsrc = numsrc;
+ memcpy (gf->gf_slist, slist, numsrc * sizeof (struct sockaddr_storage));
+
+ int result = __setsockopt (s, SOL_IP, MCAST_MSFILTER, gf, needed);
+
+ if (use_malloc)
+ {
+ int save_errno = errno;
+ free (gf);
+ __set_errno (save_errno);
+ }
+
+ return result;
+}