2003-03-29 07:26:59 +00:00
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/* getifaddrs -- get names and addresses of all network interfaces
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2020-01-01 00:14:33 +00:00
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Copyright (C) 2003-2020 Free Software Foundation, Inc.
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2003-03-29 07:26:59 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2003-03-29 07:26:59 +00:00
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2005-06-14 00:56:49 +00:00
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#include <alloca.h>
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2003-03-29 07:26:59 +00:00
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#include <assert.h>
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#include <errno.h>
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#include <ifaddrs.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netpacket/packet.h>
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#include <stdbool.h>
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2005-06-14 00:56:49 +00:00
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#include <stdint.h>
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2003-03-29 07:26:59 +00:00
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#include <stdlib.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sysdep.h>
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#include <time.h>
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#include <unistd.h>
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2004-06-30 07:43:11 +00:00
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#include "netlinkaccess.h"
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2003-03-29 07:26:59 +00:00
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2008-08-13 06:57:42 +00:00
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/* There is a problem with this type. The address length for
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Infiniband sockets is much longer than the 8 bytes allocated in the
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sockaddr_ll definition. Hence we use here a special
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definition. */
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struct sockaddr_ll_max
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{
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unsigned short int sll_family;
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unsigned short int sll_protocol;
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int sll_ifindex;
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unsigned short int sll_hatype;
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unsigned char sll_pkttype;
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unsigned char sll_halen;
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unsigned char sll_addr[24];
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};
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2003-03-29 07:26:59 +00:00
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/* struct to hold the data for one ifaddrs entry, so we can allocate
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everything at once. */
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struct ifaddrs_storage
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{
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struct ifaddrs ifa;
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union
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{
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/* Save space for the biggest of the four used sockaddr types and
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avoid a lot of casts. */
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struct sockaddr sa;
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2008-08-13 06:57:42 +00:00
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struct sockaddr_ll_max sl;
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2003-03-29 07:26:59 +00:00
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struct sockaddr_in s4;
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struct sockaddr_in6 s6;
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} addr, netmask, broadaddr;
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char name[IF_NAMESIZE + 1];
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};
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2004-06-30 07:43:11 +00:00
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void
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__netlink_free_handle (struct netlink_handle *h)
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2003-03-29 07:26:59 +00:00
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{
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struct netlink_res *ptr;
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int saved_errno = errno;
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ptr = h->nlm_list;
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while (ptr != NULL)
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{
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struct netlink_res *tmpptr;
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tmpptr = ptr->next;
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free (ptr);
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ptr = tmpptr;
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}
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2004-06-30 07:43:11 +00:00
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__set_errno (saved_errno);
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2003-03-29 07:26:59 +00:00
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}
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2005-06-14 00:56:49 +00:00
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static int
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2004-06-30 07:43:11 +00:00
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__netlink_sendreq (struct netlink_handle *h, int type)
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2003-03-29 07:26:59 +00:00
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{
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2006-05-19 07:55:24 +00:00
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struct req
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2003-03-29 07:26:59 +00:00
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{
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struct nlmsghdr nlh;
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struct rtgenmsg g;
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2006-05-19 07:55:24 +00:00
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char pad[0];
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2003-03-29 07:26:59 +00:00
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} req;
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struct sockaddr_nl nladdr;
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if (h->seq == 0)
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2019-10-24 21:01:40 +00:00
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h->seq = time_now ();
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2003-03-29 07:26:59 +00:00
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req.nlh.nlmsg_len = sizeof (req);
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req.nlh.nlmsg_type = type;
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req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
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req.nlh.nlmsg_pid = 0;
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req.nlh.nlmsg_seq = h->seq;
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req.g.rtgen_family = AF_UNSPEC;
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2006-05-19 07:55:24 +00:00
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if (sizeof (req) != offsetof (struct req, pad))
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memset (req.pad, '\0', sizeof (req) - offsetof (struct req, pad));
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2003-03-29 07:26:59 +00:00
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memset (&nladdr, '\0', sizeof (nladdr));
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nladdr.nl_family = AF_NETLINK;
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2003-04-29 23:49:37 +00:00
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return TEMP_FAILURE_RETRY (__sendto (h->fd, (void *) &req, sizeof (req), 0,
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(struct sockaddr *) &nladdr,
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sizeof (nladdr)));
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2003-03-29 07:26:59 +00:00
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}
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2004-06-30 07:43:11 +00:00
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int
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2005-06-14 00:56:49 +00:00
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__netlink_request (struct netlink_handle *h, int type)
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2003-03-29 07:26:59 +00:00
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{
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struct netlink_res *nlm_next;
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struct sockaddr_nl nladdr;
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struct nlmsghdr *nlmh;
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2005-06-14 00:56:49 +00:00
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ssize_t read_len;
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2003-03-29 07:26:59 +00:00
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bool done = false;
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2005-06-14 00:56:49 +00:00
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2007-03-15 20:05:19 +00:00
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#ifdef PAGE_SIZE
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/* Help the compiler optimize out the malloc call if PAGE_SIZE
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is constant and smaller or equal to PTHREAD_STACK_MIN/4. */
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const size_t buf_size = PAGE_SIZE;
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#else
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const size_t buf_size = __getpagesize ();
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#endif
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bool use_malloc = false;
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char *buf;
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[BZ #2510, BZ #2830, BZ #3137, BZ #3313, BZ #3426, BZ #3465, BZ #3480, BZ #3483, BZ #3493, BZ #3514, BZ #3515, BZ #3664, BZ #3673, BZ #3674]
2007-01-11 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/soft-fp/sfp-machine.h: Remove.
* sysdeps/x86_64/soft-fp/sfp-machine.h: Likewise.
2007-01-10 Ulrich Drepper <drepper@redhat.com>
* io/fts.c: Make sure fts_cur is always valid after return from
fts_read.
Patch by Miloslav Trmac <mitr@redhat.com>.
2006-10-27 Richard Sandiford <richard@codesourcery.com>
* elf/elf.h (R_MIPS_GLOB_DAT): Define.
(R_MIPS_NUM): Bump by 1.
2007-01-03 Jakub Jelinek <jakub@redhat.com>
* posix/execvp.c: Include alloca.h.
(allocate_scripts_argv): Renamed to...
(scripts_argv): ... this. Don't allocate buffer here nor count
arguments.
(execvp): Use alloca if possible.
* posix/Makefile: Add rules to build and run tst-vfork3 test.
* posix/tst-vfork3.c: New test.
* stdlib/Makefile (tst-strtod3-ENV): Define.
2007-01-02 Ulrich Drepper <drepper@redhat.com>
* posix/getconf.c: Update copyright year.
* nss/getent.c: Likewise.
* iconv/iconvconfig.c: Likewise.
* iconv/iconv_prog.c: Likewise.
* elf/ldconfig.c: Likewise.
* catgets/gencat.c: Likewise.
* csu/version.c: Likewise.
* elf/ldd.bash.in: Likewise.
* elf/sprof.c (print_version): Likewise.
* locale/programs/locale.c: Likewise.
* locale/programs/localedef.c: Likewise.
* nscd/nscd.c (print_version): Likewise.
* debug/xtrace.sh: Likewise.
* malloc/memusage.sh: Likewise.
* malloc/mtrace.pl: Likewise.
* debug/catchsegv.sh: Likewise.
2006-12-24 Ulrich Drepper <drepper@redhat.com>
* malloc/malloc.c (sYSMALLOc): Remove some unnecessary alignment
attempts.
2006-12-23 Ulrich Drepper <drepper@redhat.com>
* posix/wordexp.c: Remove some unnecessary tests.
2006-12-20 SUGIOKA Toshinobu <sugioka@itonet.co.jp>
* sysdeps/unix/sysv/linux/sh/bits/shm.h: New file.
* nss/getXXbyYY_r.c: Include atomic.h.
(INTERNAL (REENTRANT_NAME)): Write startp after start_fct,
add atomic_write_barrier () in between.
2006-11-28 Jakub Jelinek <jakub@redhat.com>
* elf/dl-support.c: Include dl-procinfo.h.
* sysdeps/powerpc/dl-procinfo.h (PPC_PLATFORM_POWER4,
PPC_PLATFORM_PPC970, PPC_PLATFORM_POWER5, PPC_PLATFORM_POWER5_PLUS,
PPC_PLATFORM_POWER6, PPC_PLATFORM_CELL_BE, PPC_PLATFORM_POWER6X):
Define.
(_dl_string_platform): Use PPC_PLATFORM_* macros instead of
hardcoded constants.
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_platform): Use
PPC_PLATFORM_* macros for array designators.
2006-11-11 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 3 new cap
names to the beginning.
(_dl_powerpc_platforms): Add "power6x".
* sysdeps/powerpc/dl-procinfo.h (_DL_HWCAP_FIRST): Decrease.
(HWCAP_IMPORTANT): Add PPC_FEATURE_HAS_DFP.
(_DL_PLATFORMS_COUNT): Increase.
(_dl_string_platform): Handle power6x case.
* sysdeps/powerpc/sysdep.h (PPC_FEATURE_PA6T, PPC_FEATURE_HAS_DFP,
PPC_FEATURE_POWER6_EXT): Define.
(PPC_FEATURE_POWER5, PPC_FEATURE_POWER5_PLUS): Correct Comment.
[-2^31 .. 2^31) range.
* sysdeps/unix/sysv/linux/bits/statvfs.h: Define ST_RELATIME.
* sysdeps/unix/sysv/linux/internal_statvfs.c (__statvfs_getflags):
Handle relatime mount option.
2006-12-13 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Include
kernel-features.h.
2006-12-11 Ulrich Drepper <drepper@redhat.com>
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Parse thousand
separators also if no non-zero digits found.
* stdlib/Makefile (tests): Add tst-strtod3.
[BZ #3664]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Fix test to recognize
empty parsed strings.
* stdlib/Makefile (tests): Add tst-strtod2.
* stdlib/tst-strtod2.c: New file.
[BZ #3673]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Fix exp_limit
computation.
* stdlib/Makefile (tests): Add tst-atof2.
* stdlib/tst-atof2.c: New file.
[BZ #3674]
* stdlib/strtod_l.c (____STRTOF_INTERNAL): Adjust exponent value
correctly if removing trailing zero of hex-float.
* stdlib/Makefile (tests): Add tst-atof1.
* stdlib/tst-atof1.c: New file.
* misc/mntent_r.c (__hasmntopt): Check p[optlen] even when p == rest.
Start searching for next comma at p rather than rest.
* misc/Makefile (tests): Add tst-mntent2.
* misc/tst-mntent2.c: New test.
2006-12-08 Ulrich Drepper <drepper@redhat.com>
* malloc/memusage.c: Handle realloc with new size of zero and
non-NULL pointer correctly.
(me): Really write first record twice.
(struct entry): Make format bi-arch safe.
(dest): Write out more realloc statistics.
* malloc/memusagestat.c (struct entry): Make format bi-arch safe.
2006-12-05 Jakub Jelinek <jakub@redhat.com>
* nis/nis_subr.c (nis_getnames): Revert last change.
2006-12-03 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/unix/sysv/linux/sh/sys/io.h: Removed.
2006-11-30 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/i386/i686/memcmp.S: Use jump table as the base of
jump table entries.
2006-11-30 Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/i386/clone.S: Provide CFI for the outermost
`clone' function to ensure proper unwinding stop of gdb.
* sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise.
2006-12-01 Ulrich Drepper <drepper@redhat.com>
* nscd/nscd.init: Remove obsolete and commented-out -S option
handling.
2006-11-23 Jakub Jelinek <jakub@redhat.com>
[BZ #3514]
* manual/string.texi (strncmp): Fix pastos from wcscmp description.
[BZ #3515]
* manual/string.texi (strtok): Remove duplicate paragraph.
2006-12-01 Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Fix compatibility with
libgcc not supporting `rflags' unwinding (register # >= 17).
2006-11-30 Jakub Jelinek <jakub@redhat.com>
* sunrpc/svc_run.c (svc_run): Set my_pollfd to new_pollfd if realloc
succeeded.
2006-11-29 Daniel Jacobowitz <dan@codesourcery.com>
Jakub Jelinek <jakub@redhat.com>
Jan Kratochvil <jan.kratochvil@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/sigaction.c (restore_rt): Add correct
unwind information.
* sysdeps/unix/sysv/linux/x86_64/Makefile: Provide symbols for
'restore_rt' even in the 'signal' directory.
* sysdeps/unix/sysv/linux/x86_64/ucontext_i.sym: Extend the regs list.
malloc crashed. Don't allocate memory unnecessarily in each
loop.
2006-10-21 Jakub Jelinek <jakub@redhat.com>
* resolv/mapv4v6addr.h (map_v4v6_address): Fix last change.
2006-11-20 Ulrich Drepper <drepper@redhat.com>
* resolv/mapv4v6addr.h (map_v4v6_address): Optimize a bit.
2006-11-18 Bruno Haible <bruno@clisp.org>
* sysdeps/unix/sysv/linux/i386/getgroups.c (__getgroups): Invoke
__sysconf only after having tried to call getgroups32.
2006-11-19 Ulrich Drepper <drepper@redhat.com>
* nss/nss_files/files-hosts.c (LINE_PARSER): Support IPv6-style
addresses for IPv4 queries if they can be mapped.
2006-11-16 Jakub Jelinek <jakub@redhat.com>
* sysdeps/x86_64/fpu/s_copysignf.S (__copysignf): Switch to .text.
* sysdeps/x86_64/fpu/s_copysign.S (__copysign): Likewise.
(signmask): Add .size directive.
(othermask): Add .type directive.
2006-11-14 Ulrich Drepper <drepper@redhat.com>
* po/nl.po: Update from translation team.
* timezone/zdump.c: Redo fix for BZ #3137.
2006-11-14 Jakub Jelinek <jakub@redhat.com>
* nss/nss_files/files-alias.c (get_next_alias): Set line back
to first_unused after parsing :include: file.
* timezone/africa: Update from tzdata2006o.
* timezone/antarctica: Likewise.
* timezone/asia: Likewise.
* timezone/australasia: Likewise.
* timezone/backward: Likewise.
* timezone/europe: Likewise.
* timezone/iso3166.tab: Likewise.
* timezone/northamerica: Likewise.
* timezone/southamerica: Likewise.
* timezone/zone.tab: Likewise.
* time/tzfile.c (__tzfile_read): Extend to handle new file format
on machines with 64-bit time_t.
* timezone/checktab.awk: Update from tzcode2006o.
* timezone/ialloc.c: Likewise.
* timezone/private.h: Likewise.
* timezone/scheck.c: Likewise.
* timezone/tzfile.h: Likewise.
* timezone/tzselect.ksh: Likewise.
* timezone/zdump.c: Likewise.
* timezone/zic.c: Likewise.
[BZ #3483]
* elf/ldconfig.c (main): Call setlocale and textdomain.
Patch mostly by Benno Schulenberg <bensberg@justemail.net>.
[BZ #3480]
* manual/argp.texi: Fix typos.
* manual/charset.texi: Likewise.
* manual/errno.texi: Likewise.
* manual/filesys.texi: Likewise.
* manual/lang.texi: Likewise.
* manual/maint.texi: Likewise.
* manual/memory.texi: Likewise.
* manual/message.texi: Likewise.
* manual/resource.texi: Likewise.
* manual/search.texi: Likewise.
* manual/signal.texi: Likewise.
* manual/startup.texi: Likewise.
* manual/stdio.texi: Likewise.
* manual/sysinfo.texi: Likewise.
* manual/syslog.texi: Likewise.
* manual/time.texi: Likewise.
Patch by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>.
[BZ #3465]
* sunrpc/clnt_raw.c: Minimal message improvements.
* sunrpc/pm_getmaps.c: Likewise.
* nis/nss_nisplus/nisplus-publickey.c: Likewise.
* nis/nis_print_group_entry.c: Likewise.
* locale/programs/repertoire.c: Likewise.
* locale/programs/charmap.c: Likewise.
* malloc/memusage.sh: Likewise.
* elf/dl-deps.c: Likewise.
* locale/programs/ld-collate.c: Likewise.
* libio/vswprintf.c: Likewise.
* malloc/memusagestat.c: Likewise.
* sunrpc/auth_unix.c: Likewise.
* sunrpc/rpc_main.c: Likewise.
* nscd/cache.c: Likewise.
* locale/programs/repertoire.c: Unify output messages.
* locale/programs/charmap.c: Likewise.
* locale/programs/ld-ctype.c: Likewise.
* locale/programs/ld-monetary.c: Likewise.
* locale/programs/ld-numeric.c: Likewise.
* locale/programs/ld-time.c: Likewise.
* elf/ldconfig.c: Likewise.
* nscd/selinux.c: Likewise.
* elf/cache.c: Likewise.
Patch mostly by Benno Schulenberg <bensberg@justemail.net>.
2006-11-10 Jakub Jelinek <jakub@redhat.com>
* string/strxfrm_l.c (STRXFRM): Fix trailing \1 optimization
if N is one bigger than return value.
* string/tst-strxfrm2.c (do_test): Also test strxfrm with l1 + 1
and l1 last arguments, if buf is defined, verify the return value
equals to strlen (buf) and verify no byte beyond passed length
is modified.
2006-11-10 Ulrich Drepper <drepper@redhat.com>
* po/sv.po: Update from translation team.
* sysdeps/gnu/siglist.c (__old_sys_siglist, __old_sys_sigabbrev):
Use __new_sys_siglist instead of _sys_siglist_internal as
second macro argument.
(_old_sys_siglist): Use declare_symbol_alias macro instead of
strong_alias.
2006-11-09 Ulrich Drepper <drepper@redhat.com>
[BZ #3493]
* posix/unistd.h (sysconf): Remove const attribute.
* sysdeps/posix/getaddrinfo.c (getaddrinfo): Fix test for
temporary or deprecated addresses.
Patch by Sridhar Samudrala <sri@us.ibm.com>.
* string/Makefile (tests): Add tst-strxfrm2.
* string/tst-strxfrm2.c: New file.
2006-10-09 Jakub Jelinek <jakub@redhat.com>
* elf/dl-debug.c (_dl_debug_initialize): Check r->r_map for 0
rather than r->r_brk.
* string/strxfrm_l.c (STRXFRM): Do the trailing \1 removal
optimization even if needed > n.
2006-11-07 Jakub Jelinek <jakub@redhat.com>
* include/libc-symbols.h (declare_symbol): Rename to...
(declare_symbol_alias): ... this. Add ORIGINAL argument, imply
strong_alias (ORIGINAL, SYMBOL) in asm to make sure it preceedes
.size directive.
* sysdeps/gnu/errlist-compat.awk: Adjust for declare_symbol_alias
changes.
* sysdeps/gnu/siglist.c: Likewise.
2006-11-03 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/powerpc/fpu/bits/mathinline.h
[__LIBC_INTERNAL_MATH_INLINES]: Moved to ...
* sysdeps/powerpc/fpu/math_private.h: ...here. New file.
2006-11-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/sysconf.c (intel_check_word):
Update handling of cache descriptor 0x49 for new models.
* sysdeps/unix/sysv/linux/x86_64/sysconf.c (intel_check_word):
Likewise.
2006-11-02 Ulrich Drepper <drepper@redhat.com>
* configure.in: Work around ld --help change and avoid -z relro
test completely if the architecture doesn't care about security.
2006-11-01 Ulrich Drepper <drepper@redhat.com>
* po/sv.po: Update from translation team.
2006-10-31 Ulrich Drepper <drepper@redhat.com>
* stdlib/atexit.c (atexit): Don't mark as hidden when used to
generate compatibility version.
2006-10-29 Ulrich Drepper <drepper@redhat.com>
* configure.in: Relax -z relro requirement a bit.
* po/sv.po: Update from translation team.
2006-10-29 Jakub Jelinek <jakub@redhat.com>
* elf/dl-sym.c (do_sym): Use RTLD_SINGLE_THREAD_P.
* elf/dl-runtime.c (_dl_fixup, _dl_profile_fixup): Likewise.
* elf/dl-close.c (_dl_close_worker): Likewise.
* elf/dl-open.c (_dl_open_worker): Likewise.
* sysdeps/generic/sysdep-cancel.h (RTLD_SINGLE_THREAD_P): Define.
* configure.in: Require assembler support for visibility, compiler
support for visibility and aliases, linker support for various -z
options.
* Makeconfig: Remove conditional code which now is unnecessary.
* config.h.in: Likewise.
* config.make.in: Likewise.
* dlfcn/Makefile: Likewise.
* elf/Makefile: Likewise.
* elf/dl-load.c: Likewise.
* elf/rtld.c: Likewise.
* include/libc-symbols.h: Likewise.
* include/stdio.h: Likewise.
* io/Makefile: Likewise.
* io/fstat.c: Likewise.
* io/fstat64.c: Likewise.
* io/fstatat.c: Likewise.
* io/fstatat64.c: Likewise.
* io/lstat.c: Likewise.
* io/lstat64.c: Likewise.
* io/mknod.c: Likewise.
* io/mknodat.c: Likewise.
* io/stat.c: Likewise.
* io/stat64.c: Likewise.
* libio/stdio.c: Likewise.
* nscd/Makefile: Likewise.
* stdlib/Makefile: Likewise.
* stdlib/atexit.c: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/i386/sysdep.h: Likewise.
* sysdeps/i386/i686/memcmp.S: Likewise.
* sysdeps/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sigaction.c: Likewise.
* Makerules: USE_TLS support is now default.
* tls.make.c: Likewise.
* csu/Versions: Likewise.
* csu/libc-start.c: Likewise.
* csu/libc-tls.c: Likewise.
* csu/version.c: Likewise.
* dlfcn/dlinfo.c: Likewise.
* elf/dl-addr.c: Likewise.
* elf/dl-cache.c: Likewise.
* elf/dl-close.c: Likewise.
* elf/dl-iteratephdr.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-support.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-sysdep.c: Likewise.
* elf/dl-tls.c: Likewise.
* elf/ldconfig.c: Likewise.
* elf/rtld.c: Likewise.
* elf/tst-tls-dlinfo.c: Likewise.
* elf/tst-tls1.c: Likewise.
* elf/tst-tls10.h: Likewise.
* elf/tst-tls14.c: Likewise.
* elf/tst-tls2.c: Likewise.
* elf/tst-tls3.c: Likewise.
* elf/tst-tls4.c: Likewise.
* elf/tst-tls5.c: Likewise.
* elf/tst-tls6.c: Likewise.
* elf/tst-tls7.c: Likewise.
* elf/tst-tls8.c: Likewise.
* elf/tst-tls9.c: Likewise.
* elf/tst-tlsmod1.c: Likewise.
* elf/tst-tlsmod13.c: Likewise.
* elf/tst-tlsmod13a.c: Likewise.
* elf/tst-tlsmod14a.c: Likewise.
* elf/tst-tlsmod2.c: Likewise.
* elf/tst-tlsmod3.c: Likewise.
* elf/tst-tlsmod4.c: Likewise.
* elf/tst-tlsmod5.c: Likewise.
* elf/tst-tlsmod6.c: Likewise.
* include/errno.h: Likewise.
* include/link.h: Likewise.
* include/tls.h: Likewise.
* locale/global-locale.c: Likewise.
* locale/localeinfo.h: Likewise.
* malloc/arena.c: Likewise.
* malloc/hooks.c: Likewise.
* malloc/malloc.c: Likewise.
* resolv/Versions: Likewise.
* sysdeps/alpha/dl-machine.h: Likewise.
* sysdeps/alpha/libc-tls.c: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
* sysdeps/generic/tls.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/ia64/libc-tls.c: Likewise.
* sysdeps/mach/hurd/fork.c: Likewise.
* sysdeps/mach/hurd/i386/tls.h: Likewise.
* sysdeps/powerpc/powerpc32/dl-machine.c: Likwise.
* sysdeps/powerpc/powerpc32/dl-machine.h: Likewise.
* sysdeps/powerpc/powerpc64/dl-machine.h: Likewise.
* sysdeps/s390/libc-tls.c: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
[BZ #3426]
* stdlib/stdlib.h: Adjust comment for canonicalize_file_name to
reality.
2006-10-27 Jakub Jelinek <jakub@redhat.com>
* elf/dl-lookup.c (_dl_debug_bindings): Remove unused symbol_scope
argument.
(_dl_lookup_symbol_x): Adjust caller.
* sysdeps/generic/ldsodefs.h (struct link_namespaces): Remove
_ns_global_scope.
* elf/rtld.c (dl_main): Don't initialize _ns_global_scope.
* elf/dl-libc.c: Revert l_scope name changes.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* elf/dl-close.c (_dl_close): Likewise.
* elf/dl-open.c (dl_open_worker): Likewise. If not SINGLE_THREAD_P,
always use __rtld_mrlock_{change,done}. Always free old scope list
here if not l_scope_mem.
* elf/dl-runtime.c (_dl_fixup, _dl_profile_fixup): Revert l_scope name
change. Never free scope list here. Just __rtld_mrlock_lock before
the lookup and __rtld_mrlock_unlock it after the lookup.
* elf/dl-sym.c: Likewise.
* include/link.h (struct r_scoperec): Remove.
(struct link_map): Replace l_scoperec with l_scope, l_scoperec_mem
with l_scope_mem and l_scoperec_lock with l_scope_lock.
2006-10-25 Ulrich Drepper <drepper@redhat.com>
* sysdeps/gnu/netinet/tcp.h: Define TCP_CONGESTION.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* configure.in: Disable building profile libraries by default.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* elf/dl-lookup.c (_dl_lookup_symbol_x): Add warning to
_dl_lookup_symbol_x code.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* elf/dl-runtime.c: Include sysdep-cancel.h.
(_dl_fixup, _dl_profile_fixup): Use __rtld_mrlock_* and
scoperec->nusers only if !SINGLE_THREAD_P. Use atomic_*
instead of catomic_* macros.
* elf/dl-sym.c: Include sysdep-cancel.h.
(do_sym): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-close.c: Include sysdep-cancel.h.
(_dl_close): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
* elf/dl-open.c: Include sysdep-cancel.h.
(dl_open_worker): Use __rtld_mrlock_* and scoperec->nusers only
if !SINGLE_THREAD_P. Use atomic_* instead of catomic_* macros.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
[BZ #3313]
* malloc/malloc.c (malloc_consolidate): Set maxfb to address of last
fastbin rather than end of fastbin array.
2006-10-18 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/i486/bits/atomic.h (catomic_decrement): Use correct
body macro.
* sysdeps/x86_64/bits/atomic.h
(__arch_c_compare_and_exchange_val_64_acq): Add missing casts.
(catomic_decrement): Use correct body macro.
2006-10-17 Jakub Jelinek <jakub@redhat.com>
* include/atomic.h: Add a unique prefix to all local variables
in macros.
* csu/tst-atomic.c (do_test): Test also catomic_* macros.
2006-10-14 Ulrich Drepper <drepper@redhat.com>
* resolv/arpa/nameser.h: Document that ns_t_a6 is deprecated.
[BZ #3313]
* malloc/malloc.c (malloc_consolidate): Don't use get_fast_max to
determine highest fast bin to consolidate, always look into all of
them.
(do_check_malloc_state): Only require for empty bins for large
sizes in main arena.
* libio/stdio.h: Add more __wur attributes.
2006-11-12 Andreas Jaeger <aj@suse.de>
[BZ #2510]
* manual/search.texi (Hash Search Function): Clarify.
(Array Search Function): Clarify.
2006-11-12 Joseph Myers <joseph@codesourcery.com>
[BZ #2830]
* math/atest-exp.c (main): Cast hex value to mp_limb_t before
shifting.
* math/atest-exp2.c (read_mpn_hex): Likewise.
* math/atest-sincos.c (main): Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Add epoll_pwait.
* sysdeps/unix/sysv/linux/sys/epoll.h: Declare epoll_pwait.
* sysdeps/unix/sysv/linux/Versions (libc): Add epoll_pwait for
version GLIBC_2.6.
* Versions.def: Add GLIBC_2.6 for libc.
* sysdeps/i386/i486/bits/atomic.h: Add catomic_* support.
2006-10-11 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.c (_int_malloc): Remove unused any_larger variable.
* nis/nis_defaults.c (__nis_default_access): Don't call getenv twice.
* nis/nis_subr.c (nis_getnames): Use __secure_getenv instead of getenv.
* sysdeps/generic/unsecvars.h: Add NIS_PATH.
2006-10-11 Ulrich Drepper <drepper@redhat.com>
* include/atomic.c: Define catomic_* operations.
* sysdeps/x86_64/bits/atomic.h: Likewise. Fix a few minor problems.
* stdlib/cxa_finalize.c: Use catomic_* operations instead of atomic_*.
* malloc/memusage.c: Likewise.
* gmon/mcount.c: Likewise.
* elf/dl-close.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-sym.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-fptr.c: Likewise.
* resolv/res_libc.c: Likewise.
2006-10-10 Roland McGrath <roland@frob.com>
* sysdeps/mach/hurd/utimes.c: Use a union to avoid an improper cast.
* sysdeps/mach/hurd/futimes.c: Likewise.
* sysdeps/mach/hurd/lutimes.c: Likewise.
2006-10-09 Ulrich Drepper <drepper@redhat.com>
Jakub Jelinek <jakub@redhat.com>
Implement reference counting of scope records.
* elf/dl-close.c (_dl_close): Remove all scopes from removed objects
from the list in objects which remain. Always allocate new scope
record.
* elf/dl-open.c (dl_open_worker): When growing array for scopes,
don't resize, allocate a new one.
* elf/dl-runtime.c: Update reference counters before using a scope
array.
* elf/dl-sym.c: Likewise.
* elf/dl-libc.c: Adjust for l_scope name change.
* elf/dl-load.c: Likewise.
* elf/dl-object.c: Likewise.
* elf/rtld.c: Likewise.
* include/link.h: Include <rtld-lowlevel.h>. Define struct
r_scoperec. Replace r_scope with pointer to r_scoperec structure.
Add l_scoperec_lock.
* sysdeps/generic/ldsodefs.h: Include <rtld-lowlevel.h>.
* sysdeps/generic/rtld-lowlevel.h: New file.
* include/atomic.h: Rename atomic_and to atomic_and_val and
atomic_or to atomic_or_val. Define new macros atomic_and and
atomic_or which do not return values.
* sysdeps/x86_64/bits/atomic.h: Define atomic_and and atomic_or.
Various cleanups.
* sysdeps/i386/i486/bits/atomic.h: Likewise.
* po/sv.po: Update from translation team.
2006-10-07 Ulrich Drepper <drepper@redhat.com>
* Versions.def: Add GLIBC_2.6 to libpthread.
* include/shlib-compat.h (SHLIB_COMPAT): Expand parameters before use.
(versioned_symbol): Likewise.
(compat_symbol): Likewise.
* po/tr.po: Update from translation team.
* nis/Banner: Removed. It's been integral part forever and the
author info is incomplete anyway.
* libio/Banner: Likewise.
2006-10-06 Ulrich Drepper <drepper@redhat.com>
* version.h (VERSION): Bump to 2.5.90 for new development tree.
2007-01-11 21:51:07 +00:00
|
|
|
|
2007-03-15 20:05:19 +00:00
|
|
|
if (__libc_use_alloca (buf_size))
|
|
|
|
buf = alloca (buf_size);
|
2005-06-14 00:56:49 +00:00
|
|
|
else
|
|
|
|
{
|
2007-03-15 20:05:19 +00:00
|
|
|
buf = malloc (buf_size);
|
2005-06-14 00:56:49 +00:00
|
|
|
if (buf != NULL)
|
|
|
|
use_malloc = true;
|
|
|
|
else
|
|
|
|
goto out_fail;
|
|
|
|
}
|
|
|
|
|
2007-03-15 20:05:19 +00:00
|
|
|
struct iovec iov = { buf, buf_size };
|
2005-06-14 00:56:49 +00:00
|
|
|
|
2007-03-15 20:05:19 +00:00
|
|
|
if (__netlink_sendreq (h, type) < 0)
|
|
|
|
goto out_fail;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
while (! done)
|
|
|
|
{
|
|
|
|
struct msghdr msg =
|
|
|
|
{
|
2016-03-18 20:34:33 +00:00
|
|
|
.msg_name = (void *) &nladdr,
|
|
|
|
.msg_namelen = sizeof (nladdr),
|
|
|
|
.msg_iov = &iov,
|
|
|
|
.msg_iovlen = 1,
|
|
|
|
.msg_control = NULL,
|
|
|
|
.msg_controllen = 0,
|
|
|
|
.msg_flags = 0
|
2003-03-29 07:26:59 +00:00
|
|
|
};
|
|
|
|
|
2003-04-29 23:49:37 +00:00
|
|
|
read_len = TEMP_FAILURE_RETRY (__recvmsg (h->fd, &msg, 0));
|
2015-11-09 11:48:41 +00:00
|
|
|
__netlink_assert_response (h->fd, read_len);
|
2003-03-29 07:26:59 +00:00
|
|
|
if (read_len < 0)
|
2005-06-14 00:56:49 +00:00
|
|
|
goto out_fail;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2005-06-14 00:56:49 +00:00
|
|
|
if (nladdr.nl_pid != 0)
|
|
|
|
continue;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2014-02-10 13:45:42 +00:00
|
|
|
if (__glibc_unlikely (msg.msg_flags & MSG_TRUNC))
|
2007-03-15 20:05:19 +00:00
|
|
|
goto out_fail;
|
2005-06-14 00:56:49 +00:00
|
|
|
|
|
|
|
size_t count = 0;
|
|
|
|
size_t remaining_len = read_len;
|
2003-03-29 07:26:59 +00:00
|
|
|
for (nlmh = (struct nlmsghdr *) buf;
|
2005-06-14 00:56:49 +00:00
|
|
|
NLMSG_OK (nlmh, remaining_len);
|
|
|
|
nlmh = (struct nlmsghdr *) NLMSG_NEXT (nlmh, remaining_len))
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
2005-06-14 00:56:49 +00:00
|
|
|
if ((pid_t) nlmh->nlmsg_pid != h->pid
|
2003-11-13 23:39:31 +00:00
|
|
|
|| nlmh->nlmsg_seq != h->seq)
|
2003-03-29 07:26:59 +00:00
|
|
|
continue;
|
|
|
|
|
2005-06-14 00:56:49 +00:00
|
|
|
++count;
|
2003-03-29 07:26:59 +00:00
|
|
|
if (nlmh->nlmsg_type == NLMSG_DONE)
|
|
|
|
{
|
2003-04-16 22:50:37 +00:00
|
|
|
/* We found the end, leave the loop. */
|
2003-03-29 07:26:59 +00:00
|
|
|
done = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (nlmh->nlmsg_type == NLMSG_ERROR)
|
|
|
|
{
|
|
|
|
struct nlmsgerr *nlerr = (struct nlmsgerr *) NLMSG_DATA (nlmh);
|
|
|
|
if (nlmh->nlmsg_len < NLMSG_LENGTH (sizeof (struct nlmsgerr)))
|
|
|
|
errno = EIO;
|
|
|
|
else
|
|
|
|
errno = -nlerr->error;
|
2005-06-14 00:56:49 +00:00
|
|
|
goto out_fail;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
}
|
2005-06-14 00:56:49 +00:00
|
|
|
|
|
|
|
/* If there was nothing with the expected nlmsg_pid and nlmsg_seq,
|
|
|
|
there is no point to record it. */
|
|
|
|
if (count == 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
nlm_next = (struct netlink_res *) malloc (sizeof (struct netlink_res)
|
|
|
|
+ read_len);
|
|
|
|
if (nlm_next == NULL)
|
|
|
|
goto out_fail;
|
|
|
|
nlm_next->next = NULL;
|
|
|
|
nlm_next->nlh = memcpy (nlm_next + 1, buf, read_len);
|
|
|
|
nlm_next->size = read_len;
|
|
|
|
nlm_next->seq = h->seq;
|
|
|
|
if (h->nlm_list == NULL)
|
|
|
|
h->nlm_list = nlm_next;
|
|
|
|
else
|
|
|
|
h->end_ptr->next = nlm_next;
|
|
|
|
h->end_ptr = nlm_next;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
2005-06-14 00:56:49 +00:00
|
|
|
|
|
|
|
if (use_malloc)
|
|
|
|
free (buf);
|
2003-03-29 07:26:59 +00:00
|
|
|
return 0;
|
2005-06-14 00:56:49 +00:00
|
|
|
|
|
|
|
out_fail:
|
|
|
|
if (use_malloc)
|
|
|
|
free (buf);
|
|
|
|
return -1;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2004-06-30 07:43:11 +00:00
|
|
|
void
|
|
|
|
__netlink_close (struct netlink_handle *h)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
/* Don't modify errno. */
|
2020-01-29 20:38:36 +00:00
|
|
|
INTERNAL_SYSCALL_CALL (close, h->fd);
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Open a NETLINK socket. */
|
2004-06-30 07:43:11 +00:00
|
|
|
int
|
|
|
|
__netlink_open (struct netlink_handle *h)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
struct sockaddr_nl nladdr;
|
|
|
|
|
2017-04-19 05:45:04 +00:00
|
|
|
h->fd = __socket (PF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
|
2003-03-29 07:26:59 +00:00
|
|
|
if (h->fd < 0)
|
2004-06-30 07:43:11 +00:00
|
|
|
goto out;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
memset (&nladdr, '\0', sizeof (nladdr));
|
|
|
|
nladdr.nl_family = AF_NETLINK;
|
2003-04-29 23:49:37 +00:00
|
|
|
if (__bind (h->fd, (struct sockaddr *) &nladdr, sizeof (nladdr)) < 0)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
2003-06-03 23:07:39 +00:00
|
|
|
close_and_out:
|
2004-06-30 07:43:11 +00:00
|
|
|
__netlink_close (h);
|
|
|
|
out:
|
2003-03-29 07:26:59 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2003-06-03 23:07:39 +00:00
|
|
|
/* Determine the ID the kernel assigned for this netlink connection.
|
|
|
|
It is not necessarily the PID if there is more than one socket
|
|
|
|
open. */
|
|
|
|
socklen_t addr_len = sizeof (nladdr);
|
|
|
|
if (__getsockname (h->fd, (struct sockaddr *) &nladdr, &addr_len) < 0)
|
|
|
|
goto close_and_out;
|
|
|
|
h->pid = nladdr.nl_pid;
|
2003-03-29 07:26:59 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* We know the number of RTM_NEWLINK entries, so we reserve the first
|
|
|
|
# of entries for this type. All RTM_NEWADDR entries have an index
|
|
|
|
pointer to the RTM_NEWLINK entry. To find the entry, create
|
|
|
|
a table to map kernel index entries to our index numbers.
|
|
|
|
Since we get at first all RTM_NEWLINK entries, it can never happen
|
|
|
|
that a RTM_NEWADDR index is not known to this map. */
|
|
|
|
static int
|
2003-04-17 01:08:57 +00:00
|
|
|
map_newlink (int index, struct ifaddrs_storage *ifas, int *map, int max)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < max; i++)
|
|
|
|
{
|
|
|
|
if (map[i] == -1)
|
|
|
|
{
|
|
|
|
map[i] = index;
|
2003-04-17 01:08:57 +00:00
|
|
|
if (i > 0)
|
|
|
|
ifas[i - 1].ifa.ifa_next = &ifas[i].ifa;
|
2003-03-29 07:26:59 +00:00
|
|
|
return i;
|
|
|
|
}
|
|
|
|
else if (map[i] == index)
|
|
|
|
return i;
|
|
|
|
}
|
2010-04-04 03:36:59 +00:00
|
|
|
|
2013-08-29 07:08:54 +00:00
|
|
|
/* This means interfaces changed between the reading of the
|
2010-04-04 03:36:59 +00:00
|
|
|
RTM_GETLINK and RTM_GETADDR information. We have to repeat
|
|
|
|
everything. */
|
|
|
|
return -1;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Create a linked list of `struct ifaddrs' structures, one for each
|
|
|
|
network interface on the host machine. If successful, store the
|
2009-04-29 16:42:32 +00:00
|
|
|
list in *IFAP and return 0. On errors, return -1 and set `errno'. */
|
2010-04-04 03:36:59 +00:00
|
|
|
static int
|
|
|
|
getifaddrs_internal (struct ifaddrs **ifap)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
struct netlink_handle nh = { 0, 0, 0, NULL, NULL };
|
|
|
|
struct netlink_res *nlp;
|
|
|
|
struct ifaddrs_storage *ifas;
|
|
|
|
unsigned int i, newlink, newaddr, newaddr_idx;
|
|
|
|
int *map_newlink_data;
|
|
|
|
size_t ifa_data_size = 0; /* Size to allocate for all ifa_data. */
|
2005-06-14 00:56:49 +00:00
|
|
|
char *ifa_data_ptr; /* Pointer to the unused part of memory for
|
2003-03-29 07:26:59 +00:00
|
|
|
ifa_data. */
|
2003-04-16 22:50:37 +00:00
|
|
|
int result = 0;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2006-05-10 00:03:41 +00:00
|
|
|
*ifap = NULL;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2012-07-25 21:19:13 +00:00
|
|
|
if (__netlink_open (&nh) < 0)
|
|
|
|
return -1;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
/* Tell the kernel that we wish to get a list of all
|
2005-06-14 00:56:49 +00:00
|
|
|
active interfaces, collect all data for every interface. */
|
|
|
|
if (__netlink_request (&nh, RTM_GETLINK) < 0)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
2003-04-16 22:50:37 +00:00
|
|
|
result = -1;
|
|
|
|
goto exit_free;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Now ask the kernel for all addresses which are assigned
|
2005-06-14 00:56:49 +00:00
|
|
|
to an interface and collect all data for every interface.
|
|
|
|
Since we store the addresses after the interfaces in the
|
|
|
|
list, we will later always find the interface before the
|
|
|
|
corresponding addresses. */
|
2003-03-29 07:26:59 +00:00
|
|
|
++nh.seq;
|
2005-06-14 00:56:49 +00:00
|
|
|
if (__netlink_request (&nh, RTM_GETADDR) < 0)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
2003-04-16 22:50:37 +00:00
|
|
|
result = -1;
|
|
|
|
goto exit_free;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Count all RTM_NEWLINK and RTM_NEWADDR entries to allocate
|
|
|
|
enough memory. */
|
|
|
|
newlink = newaddr = 0;
|
|
|
|
for (nlp = nh.nlm_list; nlp; nlp = nlp->next)
|
|
|
|
{
|
|
|
|
struct nlmsghdr *nlh;
|
|
|
|
size_t size = nlp->size;
|
|
|
|
|
|
|
|
if (nlp->nlh == NULL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* Walk through all entries we got from the kernel and look, which
|
2005-06-14 00:56:49 +00:00
|
|
|
message type they contain. */
|
2003-03-29 07:26:59 +00:00
|
|
|
for (nlh = nlp->nlh; NLMSG_OK (nlh, size); nlh = NLMSG_NEXT (nlh, size))
|
|
|
|
{
|
2004-06-30 07:43:11 +00:00
|
|
|
/* Check if the message is what we want. */
|
2003-03-29 07:26:59 +00:00
|
|
|
if ((pid_t) nlh->nlmsg_pid != nh.pid || nlh->nlmsg_seq != nlp->seq)
|
|
|
|
continue;
|
|
|
|
|
2018-06-29 07:44:55 +00:00
|
|
|
/* If the dump got interrupted, we can't rely on the results
|
|
|
|
so try again. */
|
|
|
|
if (nlh->nlmsg_flags & NLM_F_DUMP_INTR)
|
|
|
|
{
|
|
|
|
result = -EAGAIN;
|
|
|
|
goto exit_free;
|
|
|
|
}
|
|
|
|
|
2003-03-29 07:26:59 +00:00
|
|
|
if (nlh->nlmsg_type == NLMSG_DONE)
|
|
|
|
break; /* ok */
|
|
|
|
|
|
|
|
if (nlh->nlmsg_type == RTM_NEWLINK)
|
|
|
|
{
|
|
|
|
/* A RTM_NEWLINK message can have IFLA_STATS data. We need to
|
|
|
|
know the size before creating the list to allocate enough
|
|
|
|
memory. */
|
|
|
|
struct ifinfomsg *ifim = (struct ifinfomsg *) NLMSG_DATA (nlh);
|
|
|
|
struct rtattr *rta = IFLA_RTA (ifim);
|
|
|
|
size_t rtasize = IFLA_PAYLOAD (nlh);
|
|
|
|
|
|
|
|
while (RTA_OK (rta, rtasize))
|
|
|
|
{
|
|
|
|
size_t rta_payload = RTA_PAYLOAD (rta);
|
|
|
|
|
|
|
|
if (rta->rta_type == IFLA_STATS)
|
|
|
|
{
|
|
|
|
ifa_data_size += rta_payload;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
rta = RTA_NEXT (rta, rtasize);
|
|
|
|
}
|
|
|
|
++newlink;
|
|
|
|
}
|
|
|
|
else if (nlh->nlmsg_type == RTM_NEWADDR)
|
|
|
|
++newaddr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return if no interface is up. */
|
|
|
|
if ((newlink + newaddr) == 0)
|
2003-04-16 22:50:37 +00:00
|
|
|
goto exit_free;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
/* Allocate memory for all entries we have and initialize next
|
|
|
|
pointer. */
|
|
|
|
ifas = (struct ifaddrs_storage *) calloc (1,
|
|
|
|
(newlink + newaddr)
|
|
|
|
* sizeof (struct ifaddrs_storage)
|
|
|
|
+ ifa_data_size);
|
|
|
|
if (ifas == NULL)
|
|
|
|
{
|
2003-04-16 22:50:37 +00:00
|
|
|
result = -1;
|
|
|
|
goto exit_free;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Table for mapping kernel index to entry in our list. */
|
|
|
|
map_newlink_data = alloca (newlink * sizeof (int));
|
|
|
|
memset (map_newlink_data, '\xff', newlink * sizeof (int));
|
|
|
|
|
2003-04-16 22:50:37 +00:00
|
|
|
ifa_data_ptr = (char *) &ifas[newlink + newaddr];
|
2003-03-29 07:26:59 +00:00
|
|
|
newaddr_idx = 0; /* Counter for newaddr index. */
|
|
|
|
|
|
|
|
/* Walk through the list of data we got from the kernel. */
|
|
|
|
for (nlp = nh.nlm_list; nlp; nlp = nlp->next)
|
|
|
|
{
|
|
|
|
struct nlmsghdr *nlh;
|
|
|
|
size_t size = nlp->size;
|
|
|
|
|
|
|
|
if (nlp->nlh == NULL)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* Walk through one message and look at the type: If it is our
|
|
|
|
message, we need RTM_NEWLINK/RTM_NEWADDR and stop if we reach
|
|
|
|
the end or we find the end marker (in this case we ignore the
|
|
|
|
following data. */
|
|
|
|
for (nlh = nlp->nlh; NLMSG_OK (nlh, size); nlh = NLMSG_NEXT (nlh, size))
|
|
|
|
{
|
|
|
|
int ifa_index = 0;
|
|
|
|
|
2003-04-16 22:50:37 +00:00
|
|
|
/* Check if the message is the one we want */
|
2003-03-29 07:26:59 +00:00
|
|
|
if ((pid_t) nlh->nlmsg_pid != nh.pid || nlh->nlmsg_seq != nlp->seq)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
if (nlh->nlmsg_type == NLMSG_DONE)
|
|
|
|
break; /* ok */
|
2003-04-16 22:50:37 +00:00
|
|
|
|
|
|
|
if (nlh->nlmsg_type == RTM_NEWLINK)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
/* We found a new interface. Now extract everything from the
|
|
|
|
interface data we got and need. */
|
|
|
|
struct ifinfomsg *ifim = (struct ifinfomsg *) NLMSG_DATA (nlh);
|
|
|
|
struct rtattr *rta = IFLA_RTA (ifim);
|
|
|
|
size_t rtasize = IFLA_PAYLOAD (nlh);
|
|
|
|
|
2003-04-16 22:50:37 +00:00
|
|
|
/* Interfaces are stored in the first "newlink" entries
|
2003-03-29 07:26:59 +00:00
|
|
|
of our list, starting in the order as we got from the
|
|
|
|
kernel. */
|
2005-06-14 00:56:49 +00:00
|
|
|
ifa_index = map_newlink (ifim->ifi_index - 1, ifas,
|
2003-03-29 07:26:59 +00:00
|
|
|
map_newlink_data, newlink);
|
2014-02-10 13:45:42 +00:00
|
|
|
if (__glibc_unlikely (ifa_index == -1))
|
2010-04-04 03:36:59 +00:00
|
|
|
{
|
|
|
|
try_again:
|
|
|
|
result = -EAGAIN;
|
|
|
|
free (ifas);
|
|
|
|
goto exit_free;
|
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
ifas[ifa_index].ifa.ifa_flags = ifim->ifi_flags;
|
|
|
|
|
|
|
|
while (RTA_OK (rta, rtasize))
|
|
|
|
{
|
|
|
|
char *rta_data = RTA_DATA (rta);
|
|
|
|
size_t rta_payload = RTA_PAYLOAD (rta);
|
|
|
|
|
|
|
|
switch (rta->rta_type)
|
|
|
|
{
|
|
|
|
case IFLA_ADDRESS:
|
2003-04-17 01:08:57 +00:00
|
|
|
if (rta_payload <= sizeof (ifas[ifa_index].addr))
|
|
|
|
{
|
|
|
|
ifas[ifa_index].addr.sl.sll_family = AF_PACKET;
|
|
|
|
memcpy (ifas[ifa_index].addr.sl.sll_addr,
|
|
|
|
(char *) rta_data, rta_payload);
|
|
|
|
ifas[ifa_index].addr.sl.sll_halen = rta_payload;
|
|
|
|
ifas[ifa_index].addr.sl.sll_ifindex
|
|
|
|
= ifim->ifi_index;
|
|
|
|
ifas[ifa_index].addr.sl.sll_hatype = ifim->ifi_type;
|
|
|
|
|
|
|
|
ifas[ifa_index].ifa.ifa_addr
|
|
|
|
= &ifas[ifa_index].addr.sa;
|
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case IFLA_BROADCAST:
|
2003-04-17 01:08:57 +00:00
|
|
|
if (rta_payload <= sizeof (ifas[ifa_index].broadaddr))
|
|
|
|
{
|
|
|
|
ifas[ifa_index].broadaddr.sl.sll_family = AF_PACKET;
|
|
|
|
memcpy (ifas[ifa_index].broadaddr.sl.sll_addr,
|
|
|
|
(char *) rta_data, rta_payload);
|
|
|
|
ifas[ifa_index].broadaddr.sl.sll_halen = rta_payload;
|
|
|
|
ifas[ifa_index].broadaddr.sl.sll_ifindex
|
|
|
|
= ifim->ifi_index;
|
|
|
|
ifas[ifa_index].broadaddr.sl.sll_hatype
|
|
|
|
= ifim->ifi_type;
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2003-04-17 01:08:57 +00:00
|
|
|
ifas[ifa_index].ifa.ifa_broadaddr
|
|
|
|
= &ifas[ifa_index].broadaddr.sa;
|
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case IFLA_IFNAME: /* Name of Interface */
|
|
|
|
if ((rta_payload + 1) <= sizeof (ifas[ifa_index].name))
|
|
|
|
{
|
|
|
|
ifas[ifa_index].ifa.ifa_name = ifas[ifa_index].name;
|
2003-04-17 01:08:57 +00:00
|
|
|
*(char *) __mempcpy (ifas[ifa_index].name, rta_data,
|
|
|
|
rta_payload) = '\0';
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFLA_STATS: /* Statistics of Interface */
|
|
|
|
ifas[ifa_index].ifa.ifa_data = ifa_data_ptr;
|
|
|
|
ifa_data_ptr += rta_payload;
|
|
|
|
memcpy (ifas[ifa_index].ifa.ifa_data, rta_data,
|
|
|
|
rta_payload);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFLA_UNSPEC:
|
|
|
|
break;
|
|
|
|
case IFLA_MTU:
|
|
|
|
break;
|
|
|
|
case IFLA_LINK:
|
|
|
|
break;
|
|
|
|
case IFLA_QDISC:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
rta = RTA_NEXT (rta, rtasize);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else if (nlh->nlmsg_type == RTM_NEWADDR)
|
|
|
|
{
|
|
|
|
struct ifaddrmsg *ifam = (struct ifaddrmsg *) NLMSG_DATA (nlh);
|
|
|
|
struct rtattr *rta = IFA_RTA (ifam);
|
|
|
|
size_t rtasize = IFA_PAYLOAD (nlh);
|
|
|
|
|
|
|
|
/* New Addresses are stored in the order we got them from
|
2003-04-17 01:08:57 +00:00
|
|
|
the kernel after the interfaces. Theoretically it is possible
|
2003-03-29 07:26:59 +00:00
|
|
|
that we have holes in the interface part of the list,
|
|
|
|
but we always have already the interface for this address. */
|
|
|
|
ifa_index = newlink + newaddr_idx;
|
2010-04-04 03:36:59 +00:00
|
|
|
int idx = map_newlink (ifam->ifa_index - 1, ifas,
|
|
|
|
map_newlink_data, newlink);
|
2014-02-10 13:45:42 +00:00
|
|
|
if (__glibc_unlikely (idx == -1))
|
2010-04-04 03:36:59 +00:00
|
|
|
goto try_again;
|
|
|
|
ifas[ifa_index].ifa.ifa_flags = ifas[idx].ifa.ifa_flags;
|
2003-04-17 01:08:57 +00:00
|
|
|
if (ifa_index > 0)
|
|
|
|
ifas[ifa_index - 1].ifa.ifa_next = &ifas[ifa_index].ifa;
|
2003-03-29 07:26:59 +00:00
|
|
|
++newaddr_idx;
|
|
|
|
|
|
|
|
while (RTA_OK (rta, rtasize))
|
|
|
|
{
|
|
|
|
char *rta_data = RTA_DATA (rta);
|
|
|
|
size_t rta_payload = RTA_PAYLOAD (rta);
|
|
|
|
|
|
|
|
switch (rta->rta_type)
|
|
|
|
{
|
|
|
|
case IFA_ADDRESS:
|
|
|
|
{
|
|
|
|
struct sockaddr *sa;
|
|
|
|
|
|
|
|
if (ifas[ifa_index].ifa.ifa_addr != NULL)
|
|
|
|
{
|
|
|
|
/* In a point-to-poing network IFA_ADDRESS
|
|
|
|
contains the destination address, local
|
|
|
|
address is supplied in IFA_LOCAL attribute.
|
|
|
|
destination address and broadcast address
|
|
|
|
are stored in an union, so it doesn't matter
|
|
|
|
which name we use. */
|
|
|
|
ifas[ifa_index].ifa.ifa_broadaddr
|
|
|
|
= &ifas[ifa_index].broadaddr.sa;
|
|
|
|
sa = &ifas[ifa_index].broadaddr.sa;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ifas[ifa_index].ifa.ifa_addr
|
|
|
|
= &ifas[ifa_index].addr.sa;
|
|
|
|
sa = &ifas[ifa_index].addr.sa;
|
|
|
|
}
|
|
|
|
|
|
|
|
sa->sa_family = ifam->ifa_family;
|
|
|
|
|
|
|
|
switch (ifam->ifa_family)
|
|
|
|
{
|
|
|
|
case AF_INET:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv4. */
|
|
|
|
if (rta_payload == 4)
|
|
|
|
memcpy (&((struct sockaddr_in *) sa)->sin_addr,
|
|
|
|
rta_data, rta_payload);
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case AF_INET6:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv6. */
|
|
|
|
if (rta_payload == 16)
|
|
|
|
{
|
|
|
|
memcpy (&((struct sockaddr_in6 *) sa)->sin6_addr,
|
|
|
|
rta_data, rta_payload);
|
|
|
|
if (IN6_IS_ADDR_LINKLOCAL (rta_data)
|
|
|
|
|| IN6_IS_ADDR_MC_LINKLOCAL (rta_data))
|
|
|
|
((struct sockaddr_in6 *) sa)->sin6_scope_id
|
2004-11-10 00:37:05 +00:00
|
|
|
= ifam->ifa_index;
|
2003-04-17 01:08:57 +00:00
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2003-04-17 01:08:57 +00:00
|
|
|
if (rta_payload <= sizeof (ifas[ifa_index].addr))
|
|
|
|
memcpy (sa->sa_data, rta_data, rta_payload);
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFA_LOCAL:
|
|
|
|
if (ifas[ifa_index].ifa.ifa_addr != NULL)
|
|
|
|
{
|
|
|
|
/* If ifa_addr is set and we get IFA_LOCAL,
|
|
|
|
assume we have a point-to-point network.
|
|
|
|
Move address to correct field. */
|
|
|
|
ifas[ifa_index].broadaddr = ifas[ifa_index].addr;
|
|
|
|
ifas[ifa_index].ifa.ifa_broadaddr
|
|
|
|
= &ifas[ifa_index].broadaddr.sa;
|
|
|
|
memset (&ifas[ifa_index].addr, '\0',
|
|
|
|
sizeof (ifas[ifa_index].addr));
|
|
|
|
}
|
|
|
|
|
|
|
|
ifas[ifa_index].ifa.ifa_addr = &ifas[ifa_index].addr.sa;
|
|
|
|
ifas[ifa_index].ifa.ifa_addr->sa_family
|
|
|
|
= ifam->ifa_family;
|
|
|
|
|
|
|
|
switch (ifam->ifa_family)
|
|
|
|
{
|
|
|
|
case AF_INET:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv4. */
|
|
|
|
if (rta_payload == 4)
|
|
|
|
memcpy (&ifas[ifa_index].addr.s4.sin_addr,
|
2003-03-29 07:26:59 +00:00
|
|
|
rta_data, rta_payload);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AF_INET6:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv6. */
|
|
|
|
if (rta_payload == 16)
|
|
|
|
{
|
|
|
|
memcpy (&ifas[ifa_index].addr.s6.sin6_addr,
|
|
|
|
rta_data, rta_payload);
|
2004-11-10 00:50:40 +00:00
|
|
|
if (IN6_IS_ADDR_LINKLOCAL (rta_data)
|
|
|
|
|| IN6_IS_ADDR_MC_LINKLOCAL (rta_data))
|
2003-04-17 01:08:57 +00:00
|
|
|
ifas[ifa_index].addr.s6.sin6_scope_id =
|
2004-11-10 00:37:05 +00:00
|
|
|
ifam->ifa_index;
|
2003-04-17 01:08:57 +00:00
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2003-04-17 01:08:57 +00:00
|
|
|
if (rta_payload <= sizeof (ifas[ifa_index].addr))
|
|
|
|
memcpy (ifas[ifa_index].addr.sa.sa_data,
|
|
|
|
rta_data, rta_payload);
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFA_BROADCAST:
|
|
|
|
/* We get IFA_BROADCAST, so IFA_LOCAL was too much. */
|
|
|
|
if (ifas[ifa_index].ifa.ifa_broadaddr != NULL)
|
|
|
|
memset (&ifas[ifa_index].broadaddr, '\0',
|
|
|
|
sizeof (ifas[ifa_index].broadaddr));
|
|
|
|
|
|
|
|
ifas[ifa_index].ifa.ifa_broadaddr
|
|
|
|
= &ifas[ifa_index].broadaddr.sa;
|
|
|
|
ifas[ifa_index].ifa.ifa_broadaddr->sa_family
|
|
|
|
= ifam->ifa_family;
|
|
|
|
|
|
|
|
switch (ifam->ifa_family)
|
|
|
|
{
|
|
|
|
case AF_INET:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv4. */
|
|
|
|
if (rta_payload == 4)
|
|
|
|
memcpy (&ifas[ifa_index].broadaddr.s4.sin_addr,
|
|
|
|
rta_data, rta_payload);
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case AF_INET6:
|
2003-04-17 01:08:57 +00:00
|
|
|
/* Size must match that of an address for IPv6. */
|
|
|
|
if (rta_payload == 16)
|
|
|
|
{
|
|
|
|
memcpy (&ifas[ifa_index].broadaddr.s6.sin6_addr,
|
|
|
|
rta_data, rta_payload);
|
|
|
|
if (IN6_IS_ADDR_LINKLOCAL (rta_data)
|
|
|
|
|| IN6_IS_ADDR_MC_LINKLOCAL (rta_data))
|
|
|
|
ifas[ifa_index].broadaddr.s6.sin6_scope_id
|
2004-11-10 00:37:05 +00:00
|
|
|
= ifam->ifa_index;
|
2003-04-17 01:08:57 +00:00
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2003-04-17 01:08:57 +00:00
|
|
|
if (rta_payload <= sizeof (ifas[ifa_index].addr))
|
|
|
|
memcpy (&ifas[ifa_index].broadaddr.sa.sa_data,
|
|
|
|
rta_data, rta_payload);
|
2003-03-29 07:26:59 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFA_LABEL:
|
|
|
|
if (rta_payload + 1 <= sizeof (ifas[ifa_index].name))
|
|
|
|
{
|
|
|
|
ifas[ifa_index].ifa.ifa_name = ifas[ifa_index].name;
|
2003-04-17 01:08:57 +00:00
|
|
|
*(char *) __mempcpy (ifas[ifa_index].name, rta_data,
|
|
|
|
rta_payload) = '\0';
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
else
|
|
|
|
abort ();
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IFA_UNSPEC:
|
|
|
|
break;
|
|
|
|
case IFA_CACHEINFO:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
rta = RTA_NEXT (rta, rtasize);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we didn't get the interface name with the
|
|
|
|
address, use the name from the interface entry. */
|
|
|
|
if (ifas[ifa_index].ifa.ifa_name == NULL)
|
2010-04-04 03:36:59 +00:00
|
|
|
{
|
|
|
|
int idx = map_newlink (ifam->ifa_index - 1, ifas,
|
|
|
|
map_newlink_data, newlink);
|
2014-02-10 13:45:42 +00:00
|
|
|
if (__glibc_unlikely (idx == -1))
|
2010-04-04 03:36:59 +00:00
|
|
|
goto try_again;
|
|
|
|
ifas[ifa_index].ifa.ifa_name = ifas[idx].ifa.ifa_name;
|
|
|
|
}
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
/* Calculate the netmask. */
|
|
|
|
if (ifas[ifa_index].ifa.ifa_addr
|
|
|
|
&& ifas[ifa_index].ifa.ifa_addr->sa_family != AF_UNSPEC
|
|
|
|
&& ifas[ifa_index].ifa.ifa_addr->sa_family != AF_PACKET)
|
|
|
|
{
|
|
|
|
uint32_t max_prefixlen = 0;
|
|
|
|
char *cp = NULL;
|
|
|
|
|
|
|
|
ifas[ifa_index].ifa.ifa_netmask
|
|
|
|
= &ifas[ifa_index].netmask.sa;
|
|
|
|
|
|
|
|
switch (ifas[ifa_index].ifa.ifa_addr->sa_family)
|
|
|
|
{
|
|
|
|
case AF_INET:
|
|
|
|
cp = (char *) &ifas[ifa_index].netmask.s4.sin_addr;
|
|
|
|
max_prefixlen = 32;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case AF_INET6:
|
|
|
|
cp = (char *) &ifas[ifa_index].netmask.s6.sin6_addr;
|
|
|
|
max_prefixlen = 128;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
ifas[ifa_index].ifa.ifa_netmask->sa_family
|
|
|
|
= ifas[ifa_index].ifa.ifa_addr->sa_family;
|
|
|
|
|
|
|
|
if (cp != NULL)
|
|
|
|
{
|
|
|
|
unsigned int preflen;
|
|
|
|
|
2014-09-13 08:10:29 +00:00
|
|
|
if (ifam->ifa_prefixlen > max_prefixlen)
|
2003-03-29 07:26:59 +00:00
|
|
|
preflen = max_prefixlen;
|
|
|
|
else
|
|
|
|
preflen = ifam->ifa_prefixlen;
|
|
|
|
|
2014-09-13 08:10:29 +00:00
|
|
|
for (i = 0; i < preflen / 8; i++)
|
2003-03-29 07:26:59 +00:00
|
|
|
*cp++ = 0xff;
|
2014-09-13 08:10:29 +00:00
|
|
|
if (preflen % 8)
|
|
|
|
*cp = 0xff << (8 - preflen % 8);
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2003-04-17 01:08:57 +00:00
|
|
|
assert (ifa_data_ptr <= (char *) &ifas[newlink + newaddr] + ifa_data_size);
|
|
|
|
|
|
|
|
if (newaddr_idx > 0)
|
|
|
|
{
|
|
|
|
for (i = 0; i < newlink; ++i)
|
|
|
|
if (map_newlink_data[i] == -1)
|
|
|
|
{
|
|
|
|
/* We have fewer links then we anticipated. Adjust the
|
|
|
|
forward pointer to the first address entry. */
|
|
|
|
ifas[i - 1].ifa.ifa_next = &ifas[newlink].ifa;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i == 0 && newlink > 0)
|
|
|
|
/* No valid link, but we allocated memory. We have to
|
|
|
|
populate the first entry. */
|
|
|
|
memmove (ifas, &ifas[newlink], sizeof (struct ifaddrs_storage));
|
|
|
|
}
|
|
|
|
|
2006-05-10 00:03:41 +00:00
|
|
|
*ifap = &ifas[0].ifa;
|
2003-04-16 22:50:37 +00:00
|
|
|
|
|
|
|
exit_free:
|
2004-06-30 07:43:11 +00:00
|
|
|
__netlink_free_handle (&nh);
|
|
|
|
__netlink_close (&nh);
|
2003-03-29 07:26:59 +00:00
|
|
|
|
2003-04-16 22:50:37 +00:00
|
|
|
return result;
|
2003-03-29 07:26:59 +00:00
|
|
|
}
|
2010-04-04 03:36:59 +00:00
|
|
|
|
|
|
|
|
|
|
|
/* Create a linked list of `struct ifaddrs' structures, one for each
|
|
|
|
network interface on the host machine. If successful, store the
|
|
|
|
list in *IFAP and return 0. On errors, return -1 and set `errno'. */
|
|
|
|
int
|
2014-12-02 23:11:09 +00:00
|
|
|
__getifaddrs (struct ifaddrs **ifap)
|
2010-04-04 03:36:59 +00:00
|
|
|
{
|
|
|
|
int res;
|
|
|
|
|
|
|
|
do
|
|
|
|
res = getifaddrs_internal (ifap);
|
|
|
|
while (res == -EAGAIN);
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
2014-12-02 23:11:09 +00:00
|
|
|
weak_alias (__getifaddrs, getifaddrs)
|
2017-09-28 00:18:32 +00:00
|
|
|
libc_hidden_def (__getifaddrs)
|
2014-12-02 23:11:09 +00:00
|
|
|
libc_hidden_weak (getifaddrs)
|
2003-03-29 07:26:59 +00:00
|
|
|
|
|
|
|
|
|
|
|
void
|
2014-12-02 23:11:09 +00:00
|
|
|
__freeifaddrs (struct ifaddrs *ifa)
|
2003-03-29 07:26:59 +00:00
|
|
|
{
|
|
|
|
free (ifa);
|
|
|
|
}
|
2014-12-02 23:11:09 +00:00
|
|
|
weak_alias (__freeifaddrs, freeifaddrs)
|
2017-09-28 00:18:32 +00:00
|
|
|
libc_hidden_def (__freeifaddrs)
|
2014-12-02 23:11:09 +00:00
|
|
|
libc_hidden_weak (freeifaddrs)
|