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[glibc/fw/linux-5.2] Linux: Use in-tree copy of SO_ constants for !__USE_MISC [BZ #24532]
- From: Florian Weimer <fw at sourceware dot org>
- To: glibc-cvs at sourceware dot org
- Date: 20 Jul 2019 21:48:52 -0000
- Subject: [glibc/fw/linux-5.2] Linux: Use in-tree copy of SO_ constants for !__USE_MISC [BZ #24532]
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=82990e07ab99011e9bd402fabfa90f2f7ca51a90
commit 82990e07ab99011e9bd402fabfa90f2f7ca51a90
Author: Florian Weimer <fweimer@redhat.com>
Date: Thu Jul 18 20:19:39 2019 +0200
Linux: Use in-tree copy of SO_ constants for !__USE_MISC [BZ #24532]
The kernel changes for a 64-bit time_t on 32-bit architectures
resulted in <asm/socket.h> indirectly including <linux/posix_types.h>.
The latter is not namespace-clean for the POSIX version of
<sys/socket.h>.
This issue has persisted across several Linux releases, so this commit
creates our own copy of the SO_* definitions for !__USE_MISC mode.
The new test socket/tst-socket-consts ensures that the copy is
consistent with the kernel definitions (which vary across
architectures). The test is tricky to get right because CPPFLAGS
includes include/libc-symbols.h, which in turn defines _GNU_SOURCE
unconditionally.
Tested with build-many-glibcs.py. I verified that a discrepancy in
the definitions actually results in a failure of the
socket/tst-socket-consts test.
Diff:
---
ChangeLog | 22 +++++
sysdeps/unix/sysv/linux/Makefile | 14 +++-
.../unix/sysv/linux/alpha/bits/socket-constants.h | 38 +++++++++
sysdeps/unix/sysv/linux/bits/socket-constants.h | 38 +++++++++
sysdeps/unix/sysv/linux/bits/socket.h | 98 ++--------------------
.../unix/sysv/linux/hppa/bits/socket-constants.h | 38 +++++++++
.../unix/sysv/linux/mips/bits/socket-constants.h | 38 +++++++++
.../sysv/linux/powerpc/bits/socket-constants.h | 38 +++++++++
.../unix/sysv/linux/sparc/bits/socket-constants.h | 38 +++++++++
sysdeps/unix/sysv/linux/tst-socket-consts.py | 62 ++++++++++++++
10 files changed, 330 insertions(+), 94 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 688f4d6..da80d51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+2019-07-18 Florian Weimer <fweimer@redhat.com>
+
+ [BZ #24532]
+ Linux: Use in-tree copy of SO_ constants for !__USE_MISC.
+ * sysdeps/unix/sysv/linux/Makefile [$(subdir) == socket]
+ (sysdep_headers): Add bits/socket-constants.h.
+ (tests-special): Add tst-socket-consts.out.
+ (tst-socket-consts.out): New target.
+ * sysdeps/unix/sysv/linux/bits/socket.h: Remove macro tracking
+ around <asm/unistd.h>.
+ [__USE_MISC]: Include <bits/types/time_t.h> before <asm/socket.h>.
+ [!__USE_MISC]: Include <sys/socket-constants.h> instead of
+ <asm/socket.h>.
+ * sysdeps/unix/sysv/linux/bits/tst-socket-consts.py: New file.
+ * sysdeps/unix/sysv/linux/bits/socket-constants.h: Likewise.
+ * sysdeps/unix/sysv/linux/alpha/bits/socket-constants.h: Likewise.
+ * sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h: Likewise.
+ * sysdeps/unix/sysv/linux/mips/bits/socket-constants.h: Likewise.
+ * sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h:
+ Likewise.
+ * sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h: Likewise.
+
2019-07-20 Florian Weimer <fweimer@redhat.com>
* scripts/glibcextract.py (compute_c_consts): Print source code on
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index afcdc65..1ab6bcb 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -146,11 +146,21 @@ endif
ifeq ($(subdir),socket)
sysdep_headers += net/if_ppp.h net/ppp-comp.h \
net/ppp_defs.h net/if_arp.h net/route.h net/ethernet.h \
- net/if_slip.h net/if_packet.h net/if_shaper.h
+ net/if_slip.h net/if_packet.h net/if_shaper.h \
+ bits/socket-constants.h
sysdep_routines += cmsg_nxthdr
CFLAGS-recvmmsg.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-sendmmsg.c = -fexceptions -fasynchronous-unwind-tables
-endif
+
+tests-special += $(objpfx)tst-socket-consts.out
+$(objpfx)tst-socket-consts.out: ../sysdeps/unix/sysv/linux/tst-socket-consts.py
+ PYTHONPATH=../scripts \
+ $(PYTHON) ../sysdeps/unix/sysv/linux/tst-socket-consts.py \
+ --cc="$(CC) $(patsubst -DMODULE_NAME=%, \
+ -DMODULE_NAME=testsuite, \
+ $(CPPFLAGS)) -D_ISOMAC" \
+ < /dev/null > $@ 2>&1; $(evaluate-test)
+endif # $(subdir) == socket
ifeq ($(subdir),sunrpc)
sysdep_headers += nfs/nfs.h
diff --git a/sysdeps/unix/sysv/linux/alpha/bits/socket-constants.h b/sysdeps/unix/sysv/linux/alpha/bits/socket-constants.h
new file mode 100644
index 0000000..5711967
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures. Version for alpha.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 65535
+#define SO_ACCEPTCONN 4116
+#define SO_BROADCAST 32
+#define SO_DONTROUTE 16
+#define SO_ERROR 4103
+#define SO_KEEPALIVE 8
+#define SO_LINGER 128
+#define SO_OOBINLINE 256
+#define SO_RCVBUF 4098
+#define SO_RCVLOWAT 4112
+#define SO_RCVTIMEO 4114
+#define SO_REUSEADDR 4
+#define SO_SNDBUF 4097
+#define SO_SNDLOWAT 4113
+#define SO_SNDTIMEO 4115
+#define SO_TYPE 4104
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
new file mode 100644
index 0000000..b231342
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 1
+#define SO_ACCEPTCONN 30
+#define SO_BROADCAST 6
+#define SO_DONTROUTE 5
+#define SO_ERROR 4
+#define SO_KEEPALIVE 9
+#define SO_LINGER 13
+#define SO_OOBINLINE 10
+#define SO_RCVBUF 8
+#define SO_RCVLOWAT 18
+#define SO_RCVTIMEO 20
+#define SO_REUSEADDR 2
+#define SO_SNDBUF 7
+#define SO_SNDLOWAT 19
+#define SO_SNDTIMEO 21
+#define SO_TYPE 3
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h
index 99af01d..082f8b9 100644
--- a/sysdeps/unix/sysv/linux/bits/socket.h
+++ b/sysdeps/unix/sysv/linux/bits/socket.h
@@ -349,98 +349,12 @@ struct ucred
};
#endif
-/* Ugly workaround for unclean kernel headers. */
-#ifndef __USE_MISC
-# ifndef FIOGETOWN
-# define __SYS_SOCKET_H_undef_FIOGETOWN
-# endif
-# ifndef FIOSETOWN
-# define __SYS_SOCKET_H_undef_FIOSETOWN
-# endif
-# ifndef SIOCATMARK
-# define __SYS_SOCKET_H_undef_SIOCATMARK
-# endif
-# ifndef SIOCGPGRP
-# define __SYS_SOCKET_H_undef_SIOCGPGRP
-# endif
-# ifndef SIOCGSTAMP
-# define __SYS_SOCKET_H_undef_SIOCGSTAMP
-# endif
-# ifndef SIOCGSTAMPNS
-# define __SYS_SOCKET_H_undef_SIOCGSTAMPNS
-# endif
-# ifndef SIOCSPGRP
-# define __SYS_SOCKET_H_undef_SIOCSPGRP
-# endif
-#endif
-#ifndef IOCSIZE_MASK
-# define __SYS_SOCKET_H_undef_IOCSIZE_MASK
-#endif
-#ifndef IOCSIZE_SHIFT
-# define __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
-#endif
-#ifndef IOC_IN
-# define __SYS_SOCKET_H_undef_IOC_IN
-#endif
-#ifndef IOC_INOUT
-# define __SYS_SOCKET_H_undef_IOC_INOUT
-#endif
-#ifndef IOC_OUT
-# define __SYS_SOCKET_H_undef_IOC_OUT
-#endif
-
-/* Get socket manipulation related informations from kernel headers. */
-#include <asm/socket.h>
-
-#ifndef __USE_MISC
-# ifdef __SYS_SOCKET_H_undef_FIOGETOWN
-# undef __SYS_SOCKET_H_undef_FIOGETOWN
-# undef FIOGETOWN
-# endif
-# ifdef __SYS_SOCKET_H_undef_FIOSETOWN
-# undef __SYS_SOCKET_H_undef_FIOSETOWN
-# undef FIOSETOWN
-# endif
-# ifdef __SYS_SOCKET_H_undef_SIOCATMARK
-# undef __SYS_SOCKET_H_undef_SIOCATMARK
-# undef SIOCATMARK
-# endif
-# ifdef __SYS_SOCKET_H_undef_SIOCGPGRP
-# undef __SYS_SOCKET_H_undef_SIOCGPGRP
-# undef SIOCGPGRP
-# endif
-# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMP
-# undef __SYS_SOCKET_H_undef_SIOCGSTAMP
-# undef SIOCGSTAMP
-# endif
-# ifdef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
-# undef __SYS_SOCKET_H_undef_SIOCGSTAMPNS
-# undef SIOCGSTAMPNS
-# endif
-# ifdef __SYS_SOCKET_H_undef_SIOCSPGRP
-# undef __SYS_SOCKET_H_undef_SIOCSPGRP
-# undef SIOCSPGRP
-# endif
-#endif
-#ifdef __SYS_SOCKET_H_undef_IOCSIZE_MASK
-# undef __SYS_SOCKET_H_undef_IOCSIZE_MASK
-# undef IOCSIZE_MASK
-#endif
-#ifdef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
-# undef __SYS_SOCKET_H_undef_IOCSIZE_SHIFT
-# undef IOCSIZE_SHIFT
-#endif
-#ifdef __SYS_SOCKET_H_undef_IOC_IN
-# undef __SYS_SOCKET_H_undef_IOC_IN
-# undef IOC_IN
-#endif
-#ifdef __SYS_SOCKET_H_undef_IOC_INOUT
-# undef __SYS_SOCKET_H_undef_IOC_INOUT
-# undef IOC_INOUT
-#endif
-#ifdef __SYS_SOCKET_H_undef_IOC_OUT
-# undef __SYS_SOCKET_H_undef_IOC_OUT
-# undef IOC_OUT
+#ifdef __USE_MISC
+# include <bits/types/time_t.h>
+# include <asm/socket.h>
+#else
+# define SO_DEBUG 1
+# include <bits/socket-constants.h>
#endif
/* Structure used to manipulate the SO_LINGER option. */
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
new file mode 100644
index 0000000..0b652b8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures. Version for hppa.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 65535
+#define SO_ACCEPTCONN 16412
+#define SO_BROADCAST 32
+#define SO_DONTROUTE 16
+#define SO_ERROR 4103
+#define SO_KEEPALIVE 8
+#define SO_LINGER 128
+#define SO_OOBINLINE 256
+#define SO_RCVBUF 4098
+#define SO_RCVLOWAT 4100
+#define SO_RCVTIMEO 4102
+#define SO_REUSEADDR 4
+#define SO_SNDBUF 4097
+#define SO_SNDLOWAT 4099
+#define SO_SNDTIMEO 4101
+#define SO_TYPE 4104
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
new file mode 100644
index 0000000..2c50449
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures. Version for MIPS.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 65535
+#define SO_ACCEPTCONN 4105
+#define SO_BROADCAST 32
+#define SO_DONTROUTE 16
+#define SO_ERROR 4103
+#define SO_KEEPALIVE 8
+#define SO_LINGER 128
+#define SO_OOBINLINE 256
+#define SO_RCVBUF 4098
+#define SO_RCVLOWAT 4100
+#define SO_RCVTIMEO 4102
+#define SO_REUSEADDR 4
+#define SO_SNDBUF 4097
+#define SO_SNDLOWAT 4099
+#define SO_SNDTIMEO 4101
+#define SO_TYPE 4104
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
new file mode 100644
index 0000000..6d4301b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures. Version for POWER.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 1
+#define SO_ACCEPTCONN 30
+#define SO_BROADCAST 6
+#define SO_DONTROUTE 5
+#define SO_ERROR 4
+#define SO_KEEPALIVE 9
+#define SO_LINGER 13
+#define SO_OOBINLINE 10
+#define SO_RCVBUF 8
+#define SO_RCVLOWAT 16
+#define SO_RCVTIMEO 18
+#define SO_REUSEADDR 2
+#define SO_SNDBUF 7
+#define SO_SNDLOWAT 17
+#define SO_SNDTIMEO 19
+#define SO_TYPE 3
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
new file mode 100644
index 0000000..a663e11
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -0,0 +1,38 @@
+/* Socket constants which vary among Linux architectures. Version for SPARC.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_SOCKET_H
+# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
+#endif
+
+#define SOL_SOCKET 65535
+#define SO_ACCEPTCONN 32768
+#define SO_BROADCAST 32
+#define SO_DONTROUTE 16
+#define SO_ERROR 4103
+#define SO_KEEPALIVE 8
+#define SO_LINGER 128
+#define SO_OOBINLINE 256
+#define SO_RCVBUF 4098
+#define SO_RCVLOWAT 2048
+#define SO_RCVTIMEO 8192
+#define SO_REUSEADDR 4
+#define SO_SNDBUF 4097
+#define SO_SNDLOWAT 4096
+#define SO_SNDTIMEO 16384
+#define SO_TYPE 4104
diff --git a/sysdeps/unix/sysv/linux/tst-socket-consts.py b/sysdeps/unix/sysv/linux/tst-socket-consts.py
new file mode 100644
index 0000000..fc1d75c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-socket-consts.py
@@ -0,0 +1,62 @@
+#!/usr/bin/python3
+# Test that glibc's sys/socket.h SO_* constants match the kernel's.
+# Copyright (C) 2018-2019 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+#
+# 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, see
+# <http://www.gnu.org/licenses/>.
+
+import argparse
+import sys
+
+import glibcextract
+
+def main():
+ """The main entry point."""
+ parser = argparse.ArgumentParser(
+ description="Test that glibc's sys/socket.h constants "
+ "match the kernel's.")
+ parser.add_argument('--cc', metavar='CC',
+ help='C compiler (including options) to use')
+ args = parser.parse_args()
+
+ def check(define):
+ return glibcextract.compare_macro_consts(
+ define + '#include <sys/socket.h>\n',
+ # Some constants in <asm/socket.h> may depend on the size
+ # of pid_t or time_t.
+ '#include <sys/types.h>\n'
+ '#include <asm/socket.h>\n',
+ args.cc,
+ macro_re='.*',
+ # Ignore internal macros.
+ exclude_re='MODULE_NAME|TOP_NAMESPACE|_[A-Z_].*',
+ # <sys/socket.h> and <asm/socket.h> are not a good match.
+ # Most socket-related constants are not defined in any
+ # UAPI header. Check only the intersection of the macros
+ # in both headers.
+ allow_extra_1=True,
+ allow_extra_2=True)
+ # _GNU_SOURCE is defined by include/libc-symbols.h, which is
+ # included by the --cc command. Defining _ISOMAC does not prevent
+ # that.
+ status = max(
+ check(''),
+ check('#undef _GNU_SOURCE\n'),
+ check('#undef _GNU_SOURCE\n'
+ '#define _POSIX_SOURCE 1\n'))
+ sys.exit(status)
+
+if __name__ == '__main__':
+ main()