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* 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.
This commit is contained in:
Ulrich Drepper 2004-08-06 04:56:04 +00:00
parent a3c7fcf0f1
commit 489aa29d62
7 changed files with 332 additions and 0 deletions
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8
ChangeLog
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@ -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>

7
include/sys/socket.h
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@ -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;

45
inet/netinet/in.h
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@ -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>

71
sysdeps/unix/sysv/linux/getipv4sourcefilter.c Normal file
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@ -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;
}

72
sysdeps/unix/sysv/linux/getsourcefilter.c Normal file
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@ -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;
}

64
sysdeps/unix/sysv/linux/setipv4sourcefilter.c Normal file
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@ -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;
}

65
sysdeps/unix/sysv/linux/setsourcefilter.c Normal file
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@ -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;
}