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* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-06-08 20:48 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-06-08 20:48 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=be65a086b42cd83045ee5d479805b4f06213b545
commit be65a086b42cd83045ee5d479805b4f06213b545
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32 bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/getsockopt.c | 70 ++++++++++++++++++---
.../unix/sysv/linux/hppa/socket-constants-time64.h | 30 +++++++++
.../unix/sysv/linux/mips/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/powerpc/socket-constants-time64.h | 30 +++++++++
sysdeps/unix/sysv/linux/setsockopt.c | 71 +++++++++++++++++++---
sysdeps/unix/sysv/linux/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/sparc/socket-constants-time64.h | 30 +++++++++
7 files changed, 276 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..688a7de087 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,15 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +31,61 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+
+ /* POSIX states that if the size of the option value is greater than
+ then option length, the option value argument shall be silently
+ truncated. */
+ if (*len >= sizeof (struct __timeval64))
+ {
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ else
+ memcpy (optval, &tv32, sizeof tv32);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
new file mode 100644
index 0000000000..ea721e0fc2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 16448
+#define COMPAT_SO_SNDTIMEO_NEW 16449
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
new file mode 100644
index 0000000000..ab8bd62853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
new file mode 100644
index 0000000000..1e48dcca8d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 18
+#define COMPAT_SO_SNDTIMEO_OLD 19
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..6505202265 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,76 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/socket-constants-time64.h b/sysdeps/unix/sysv/linux/socket-constants-time64.h
new file mode 100644
index 0000000000..e5a3777f28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 20
+#define COMPAT_SO_SNDTIMEO_OLD 21
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
new file mode 100644
index 0000000000..b137abdeea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 8192
+#define COMPAT_SO_SNDTIMEO_OLD 16384
+#define COMPAT_SO_RCVTIMEO_NEW 68
+#define COMPAT_SO_SNDTIMEO_NEW 69
+
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-05-26 16:24 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-05-26 16:24 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9f71c109db176c607d09d310cd4f550215079abf
commit 9f71c109db176c607d09d310cd4f550215079abf
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32 bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/getsockopt.c | 67 +++++++++++++++++---
.../unix/sysv/linux/hppa/socket-constants-time64.h | 30 +++++++++
.../unix/sysv/linux/mips/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/powerpc/socket-constants-time64.h | 30 +++++++++
sysdeps/unix/sysv/linux/setsockopt.c | 71 +++++++++++++++++++---
sysdeps/unix/sysv/linux/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/sparc/socket-constants-time64.h | 30 +++++++++
7 files changed, 273 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..c8e502d976 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,15 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +31,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
new file mode 100644
index 0000000000..ea721e0fc2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 16448
+#define COMPAT_SO_SNDTIMEO_NEW 16449
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
new file mode 100644
index 0000000000..ab8bd62853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
new file mode 100644
index 0000000000..1e48dcca8d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 18
+#define COMPAT_SO_SNDTIMEO_OLD 19
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..6505202265 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,76 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/socket-constants-time64.h b/sysdeps/unix/sysv/linux/socket-constants-time64.h
new file mode 100644
index 0000000000..e5a3777f28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 20
+#define COMPAT_SO_SNDTIMEO_OLD 21
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
new file mode 100644
index 0000000000..b137abdeea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 8192
+#define COMPAT_SO_SNDTIMEO_OLD 16384
+#define COMPAT_SO_RCVTIMEO_NEW 68
+#define COMPAT_SO_SNDTIMEO_NEW 69
+
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-03-05 19:20 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-03-05 19:20 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ebb7ba10fef2b51ecf872b6d9f9ecfe704df63e8
commit ebb7ba10fef2b51ecf872b6d9f9ecfe704df63e8
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32 bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/getsockopt.c | 67 +++++++++++++++++---
.../unix/sysv/linux/hppa/socket-constants-time64.h | 30 +++++++++
.../unix/sysv/linux/mips/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/powerpc/socket-constants-time64.h | 30 +++++++++
sysdeps/unix/sysv/linux/setsockopt.c | 71 +++++++++++++++++++---
sysdeps/unix/sysv/linux/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/sparc/socket-constants-time64.h | 30 +++++++++
7 files changed, 273 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..c8e502d976 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,15 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +31,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
new file mode 100644
index 0000000000..ea721e0fc2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 16448
+#define COMPAT_SO_SNDTIMEO_NEW 16449
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
new file mode 100644
index 0000000000..ab8bd62853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
new file mode 100644
index 0000000000..1e48dcca8d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 18
+#define COMPAT_SO_SNDTIMEO_OLD 19
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..6505202265 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,76 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/socket-constants-time64.h b/sysdeps/unix/sysv/linux/socket-constants-time64.h
new file mode 100644
index 0000000000..e5a3777f28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 20
+#define COMPAT_SO_SNDTIMEO_OLD 21
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
new file mode 100644
index 0000000000..b137abdeea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 8192
+#define COMPAT_SO_SNDTIMEO_OLD 16384
+#define COMPAT_SO_RCVTIMEO_NEW 68
+#define COMPAT_SO_SNDTIMEO_NEW 69
+
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-03-04 17:36 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-03-04 17:36 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=488ba1600d7804bfb033cfbc5ac9c7d0397081df
commit 488ba1600d7804bfb033cfbc5ac9c7d0397081df
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32 bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/getsockopt.c | 67 +++++++++++++++++---
.../unix/sysv/linux/hppa/socket-constants-time64.h | 30 +++++++++
.../unix/sysv/linux/mips/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/powerpc/socket-constants-time64.h | 30 +++++++++
sysdeps/unix/sysv/linux/setsockopt.c | 71 +++++++++++++++++++---
sysdeps/unix/sysv/linux/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/sparc/socket-constants-time64.h | 30 +++++++++
7 files changed, 273 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..c8e502d976 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,15 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +31,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
new file mode 100644
index 0000000000..ea721e0fc2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 16448
+#define COMPAT_SO_SNDTIMEO_NEW 16449
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
new file mode 100644
index 0000000000..ab8bd62853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
new file mode 100644
index 0000000000..1e48dcca8d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 18
+#define COMPAT_SO_SNDTIMEO_OLD 19
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..6505202265 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,76 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/socket-constants-time64.h b/sysdeps/unix/sysv/linux/socket-constants-time64.h
new file mode 100644
index 0000000000..e5a3777f28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 20
+#define COMPAT_SO_SNDTIMEO_OLD 21
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
new file mode 100644
index 0000000000..b137abdeea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 8192
+#define COMPAT_SO_SNDTIMEO_OLD 16384
+#define COMPAT_SO_RCVTIMEO_NEW 68
+#define COMPAT_SO_SNDTIMEO_NEW 69
+
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-03-04 11:28 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-03-04 11:28 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=488ba1600d7804bfb033cfbc5ac9c7d0397081df
commit 488ba1600d7804bfb033cfbc5ac9c7d0397081df
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant values will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also adds an internal only SO_{RCV,SND}TIMEO where
COMPAT_SO_{RCV,SND}TIMEO_OLD indicates pre 32 bit time support and
COMPAT_SO_{RCV,SND}TIMEO_NEW indicates time64 support. It allows to
refer to constant independently of the time_t ABI and kernel version
used.
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/getsockopt.c | 67 +++++++++++++++++---
.../unix/sysv/linux/hppa/socket-constants-time64.h | 30 +++++++++
.../unix/sysv/linux/mips/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/powerpc/socket-constants-time64.h | 30 +++++++++
sysdeps/unix/sysv/linux/setsockopt.c | 71 +++++++++++++++++++---
sysdeps/unix/sysv/linux/socket-constants-time64.h | 30 +++++++++
.../sysv/linux/sparc/socket-constants-time64.h | 30 +++++++++
7 files changed, 273 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..c8e502d976 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,15 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +31,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
new file mode 100644
index 0000000000..ea721e0fc2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/hppa/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 16448
+#define COMPAT_SO_SNDTIMEO_NEW 16449
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
new file mode 100644
index 0000000000..ab8bd62853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 4102
+#define COMPAT_SO_SNDTIMEO_OLD 4101
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
new file mode 100644
index 0000000000..1e48dcca8d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 18
+#define COMPAT_SO_SNDTIMEO_OLD 19
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..6505202265 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,76 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
+#include <socket-constants-time64.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case COMPAT_SO_RCVTIMEO_NEW:
+ case COMPAT_SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == COMPAT_SO_RCVTIMEO_NEW)
+ optname = COMPAT_SO_RCVTIMEO_OLD;
+ if (optname == COMPAT_SO_SNDTIMEO_NEW)
+ optname = COMPAT_SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/socket-constants-time64.h b/sysdeps/unix/sysv/linux/socket-constants-time64.h
new file mode 100644
index 0000000000..e5a3777f28
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 20
+#define COMPAT_SO_SNDTIMEO_OLD 21
+#define COMPAT_SO_RCVTIMEO_NEW 66
+#define COMPAT_SO_SNDTIMEO_NEW 67
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
new file mode 100644
index 0000000000..b137abdeea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/socket-constants-time64.h
@@ -0,0 +1,30 @@
+/* Compat socket constants used in 64 bit compat code.
+ Copyright (C) 2021 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
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _SOCKET_CONSTANTS_TIME64_H
+#define _SOCKET_CONSTANTS_TIME64_H
+
+/* The compat code requires the SO_* constants used for both 32 and 64 bit
+ time_t, however they were only added on v5.1 kernel. */
+
+#define COMPAT_SO_RCVTIMEO_OLD 8192
+#define COMPAT_SO_SNDTIMEO_OLD 16384
+#define COMPAT_SO_RCVTIMEO_NEW 68
+#define COMPAT_SO_SNDTIMEO_NEW 69
+
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-03-02 12:30 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-03-02 12:30 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7a9d006fb51b7889580a07a7fc874a3354c3b9df
commit 7a9d006fb51b7889580a07a7fc874a3354c3b9df
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant value will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also changes to SO_{RCV,SND}TIMEO to follow the uapi kernel values
where SO_{RCV,SND}TIMEO_OLD indicates pre 64-bit time support and
SO_{RCV,SND}TIMEO_NEW indicate time64 support. It allows to refer to
constant independently of the time_t abi used (since kernel defines
SO_{RCV,SND}TIMEO depending of the time_t size).
The hppa, mips, powerpc, and sparc provides its own socket-constant.h,
which are also updated the the SO_{RCV,SND}TIMEO constants (they are
missed on 019d828669df966 patch).
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/getsockopt.c | 72 ++++++++++++++++++--
.../unix/sysv/linux/hppa/bits/socket-constants.h | 5 ++
.../unix/sysv/linux/mips/bits/socket-constants.h | 5 ++
.../sysv/linux/powerpc/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/setsockopt.c | 76 +++++++++++++++++++---
.../unix/sysv/linux/sparc/bits/socket-constants.h | 5 ++
7 files changed, 158 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
index 84f7a333a2..d4e9979605 100644
--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -48,3 +48,8 @@
# define SO_SNDTIMEO 21
#endif
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 20
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..a093e42f96 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,20 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +36,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
index b4fb65b9f1..2413529e71 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 16448
+#define SO_SNDTIMEO_NEW 16449
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
index a5264536e9..2c124234fc 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
index f35488b375..682a3f4608 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 17
#define SO_SNDTIMEO 19
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 18
+#define SO_SNDTIMEO_OLD 19
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..a1f98a937d 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,81 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
index a58d0b5f96..3eae2176dd 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4096
#define SO_SNDTIMEO 16384
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 8192
+#define SO_SNDTIMEO_OLD 16384
+#define SO_RCVTIMEO_NEW 68
+#define SO_SNDTIMEO_NEW 69
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-03-01 17:35 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-03-01 17:35 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5411ac72e82ade5debd7accd1ed0c2c245032fed
commit 5411ac72e82ade5debd7accd1ed0c2c245032fed
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant value will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also changes to SO_{RCV,SND}TIMEO to follow the uapi kernel values
where SO_{RCV,SND}TIMEO_OLD indicates pre 64-bit time support and
SO_{RCV,SND}TIMEO_NEW indicate time64 support. It allows to refer to
constant independently of the time_t abi used (since kernel defines
SO_{RCV,SND}TIMEO depending of the time_t size).
The hppa, mips, powerpc, and sparc provides its own socket-constant.h,
which are also updated the the SO_{RCV,SND}TIMEO constants (they are
missed on 019d828669df966 patch).
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/getsockopt.c | 72 ++++++++++++++++++--
.../unix/sysv/linux/hppa/bits/socket-constants.h | 5 ++
.../unix/sysv/linux/mips/bits/socket-constants.h | 5 ++
.../sysv/linux/powerpc/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/setsockopt.c | 76 +++++++++++++++++++---
.../unix/sysv/linux/sparc/bits/socket-constants.h | 5 ++
7 files changed, 158 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
index 84f7a333a2..d4e9979605 100644
--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -48,3 +48,8 @@
# define SO_SNDTIMEO 21
#endif
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 20
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..a093e42f96 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,20 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +36,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
index b4fb65b9f1..2413529e71 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 16448
+#define SO_SNDTIMEO_NEW 16449
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
index a5264536e9..2c124234fc 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
index f35488b375..682a3f4608 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 17
#define SO_SNDTIMEO 19
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 18
+#define SO_SNDTIMEO_OLD 19
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..a1f98a937d 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,81 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
index a58d0b5f96..3eae2176dd 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4096
#define SO_SNDTIMEO 16384
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 8192
+#define SO_SNDTIMEO_OLD 16384
+#define SO_RCVTIMEO_NEW 68
+#define SO_SNDTIMEO_NEW 69
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-02-26 20:40 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-02-26 20:40 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=81e1ecfaca0c228c85cdf9319975153a3a846460
commit 81e1ecfaca0c228c85cdf9319975153a3a846460
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant value will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also changes to SO_{RCV,SND}TIMEO to follow the uapi kernel values
where SO_{RCV,SND}TIMEO_OLD indicates pre 64-bit time support and
SO_{RCV,SND}TIMEO_NEW indicate time64 support. It allows to refer to
constant independently of the time_t abi used (since kernel defines
SO_{RCV,SND}TIMEO depending of the time_t size).
The hppa, mips, powerpc, and sparc provides its own socket-constant.h,
which are also updated the the SO_{RCV,SND}TIMEO constants (they are
missed on 019d828669df966 patch).
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/getsockopt.c | 72 ++++++++++++++++++--
.../unix/sysv/linux/hppa/bits/socket-constants.h | 5 ++
.../unix/sysv/linux/mips/bits/socket-constants.h | 5 ++
.../sysv/linux/powerpc/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/setsockopt.c | 76 +++++++++++++++++++---
.../unix/sysv/linux/sparc/bits/socket-constants.h | 5 ++
7 files changed, 158 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
index 84f7a333a2..d4e9979605 100644
--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -48,3 +48,8 @@
# define SO_SNDTIMEO 21
#endif
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 20
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..a093e42f96 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,20 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +36,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
index b4fb65b9f1..2413529e71 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 16448
+#define SO_SNDTIMEO_NEW 16449
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
index a5264536e9..2c124234fc 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
index f35488b375..682a3f4608 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 17
#define SO_SNDTIMEO 19
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 18
+#define SO_SNDTIMEO_OLD 19
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..a1f98a937d 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,81 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
index a58d0b5f96..3eae2176dd 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4096
#define SO_SNDTIMEO 16384
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 8192
+#define SO_SNDTIMEO_OLD 16384
+#define SO_RCVTIMEO_NEW 68
+#define SO_SNDTIMEO_NEW 69
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-02-23 20:38 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-02-23 20:38 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c896605c69b761535b5dd8c0c7e35f27e46ede68
commit c896605c69b761535b5dd8c0c7e35f27e46ede68
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant value will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also changes to SO_{RCV,SND}TIMEO to follow the uapi kernel values
where SO_{RCV,SND}TIMEO_OLD indicates pre 64-bit time support and
SO_{RCV,SND}TIMEO_NEW indicate time64 support. It allows to refer to
constant independently of the time_t abi used (since kernel defines
SO_{RCV,SND}TIMEO depending of the time_t size).
The hppa, mips, powerpc, and sparc provides its own socket-constant.h,
which are also updated the the SO_{RCV,SND}TIMEO constants (they are
missed on 019d828669df966 patch).
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/getsockopt.c | 72 ++++++++++++++++++--
.../unix/sysv/linux/hppa/bits/socket-constants.h | 5 ++
.../unix/sysv/linux/mips/bits/socket-constants.h | 5 ++
.../sysv/linux/powerpc/bits/socket-constants.h | 5 ++
sysdeps/unix/sysv/linux/setsockopt.c | 76 +++++++++++++++++++---
.../unix/sysv/linux/sparc/bits/socket-constants.h | 5 ++
7 files changed, 158 insertions(+), 15 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
index 84f7a333a2..d4e9979605 100644
--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -48,3 +48,8 @@
# define SO_SNDTIMEO 21
#endif
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 20
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..a093e42f96 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,20 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +36,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
index b4fb65b9f1..2413529e71 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 16448
+#define SO_SNDTIMEO_NEW 16449
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
index a5264536e9..2c124234fc 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4099
#define SO_SNDTIMEO 4101
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
index f35488b375..682a3f4608 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 17
#define SO_SNDTIMEO 19
#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 18
+#define SO_SNDTIMEO_OLD 19
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..a1f98a937d 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,81 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
index a58d0b5f96..3eae2176dd 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -36,3 +36,8 @@
#define SO_SNDLOWAT 4096
#define SO_SNDTIMEO 16384
#define SO_TYPE 4104
+
+#define SO_RCVTIMEO_OLD 8192
+#define SO_SNDTIMEO_OLD 16384
+#define SO_RCVTIMEO_NEW 68
+#define SO_SNDTIMEO_NEW 69
^ permalink raw reply [flat|nested] 10+ messages in thread
* [glibc/azanella/y2038] linux: Add fallback for 64-bit time_t SO_{RCV, SND}TIMEO
@ 2021-02-23 12:36 Adhemerval Zanella
0 siblings, 0 replies; 10+ messages in thread
From: Adhemerval Zanella @ 2021-02-23 12:36 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=80770c5d8c523f37f34fb32cb1bb988d10f9fbb1
commit 80770c5d8c523f37f34fb32cb1bb988d10f9fbb1
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Sep 7 14:13:58 2020 -0300
linux: Add fallback for 64-bit time_t SO_{RCV,SND}TIMEO
The constant value will be changed for __TIMESIZE=64, so binaries built
with 64-bit time support might fail to work properly on old kernels.
Both {get,set}sockopt will retry the syscall with the old constant
values and the timeout value adjusted when kernel returns ENOTPROTOPT.
It also changes to SO_{RCV,SND}TIMEO to follow the uapi kernel values
where SO_{RCV,SND}TIMEO_OLD indicates pre 64-bit time support and
SO_{RCV,SND}TIMEO_NEW indicate time64 support. It allows to refer to
constant independently of the time_t abi used (since kernel defines
SO_{RCV,SND}TIMEO depending of the time_t size).
The hppa, mips, powerpc, and sparc provides its own socket-constant.h,
which are also updated the the SO_{RCV,SND}TIMEO constants (they are
missed on 019d828669df966 patch).
Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15
kernel).
Diff:
---
sysdeps/unix/sysv/linux/bits/socket-constants.h | 19 +++---
sysdeps/unix/sysv/linux/getsockopt.c | 72 ++++++++++++++++++--
.../unix/sysv/linux/hppa/bits/socket-constants.h | 15 ++++-
.../unix/sysv/linux/mips/bits/socket-constants.h | 17 ++++-
.../sysv/linux/powerpc/bits/socket-constants.h | 17 ++++-
sysdeps/unix/sysv/linux/setsockopt.c | 76 +++++++++++++++++++---
.../unix/sysv/linux/sparc/bits/socket-constants.h | 17 ++++-
7 files changed, 201 insertions(+), 32 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/bits/socket-constants.h b/sysdeps/unix/sysv/linux/bits/socket-constants.h
index 84f7a333a2..24fe91691f 100644
--- a/sysdeps/unix/sysv/linux/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/bits/socket-constants.h
@@ -32,19 +32,20 @@
#define SO_OOBINLINE 10
#define SO_RCVBUF 8
#define SO_RCVLOWAT 18
-#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
- && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
-# define SO_RCVTIMEO 66
-#else
-# define SO_RCVTIMEO 20
-#endif
#define SO_REUSEADDR 2
#define SO_SNDBUF 7
#define SO_SNDLOWAT 19
+#define SO_TYPE 3
+
+#define SO_RCVTIMEO_OLD 20
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
&& (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
-# define SO_SNDTIMEO 67
+# define SO_RCVTIMEO SO_RCVTIMEO_NEW
+# define SO_SNDTIMEO SO_SNDTIMEO_NEW
#else
-# define SO_SNDTIMEO 21
+# define SO_RCVTIMEO SO_RCVTIMEO_OLD
+# define SO_SNDTIMEO SO_SNDTIMEO_OLD
#endif
-#define SO_TYPE 3
diff --git a/sysdeps/unix/sysv/linux/getsockopt.c b/sysdeps/unix/sysv/linux/getsockopt.c
index 76ee8a94d6..a093e42f96 100644
--- a/sysdeps/unix/sysv/linux/getsockopt.c
+++ b/sysdeps/unix/sysv/linux/getsockopt.c
@@ -15,16 +15,20 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+static int
+getsockopt_syscall (int fd, int level, int optname, void *optval,
+ socklen_t *len)
{
#ifdef __ASSUME_GETSOCKOPT_SYSCALL
return INLINE_SYSCALL (getsockopt, 5, fd, level, optname, optval, len);
@@ -32,4 +36,58 @@ __getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
return SOCKETCALL (getsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+getsockopt32 (int fd, int level, int optname, void *optval,
+ socklen_t *len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (*len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32;
+ r = getsockopt_syscall (fd, level, optname, &tv32,
+ (socklen_t[]) { sizeof tv32 });
+ if (r < 0)
+ break;
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ *tv64 = valid_timeval32_to_timeval64 (tv32);
+ *len = sizeof (*tv64);
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+__getsockopt (int fd, int level, int optname, void *optval, socklen_t *len)
+{
+ int r = getsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = getsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (__getsockopt, getsockopt)
diff --git a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
index b4fb65b9f1..7972bf535b 100644
--- a/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/hppa/bits/socket-constants.h
@@ -30,9 +30,20 @@
#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
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 16448
+#define SO_SNDTIMEO_NEW 16449
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_RCVTIMEO SO_RCVTIMEO_NEW
+# define SO_SNDTIMEO SO_SNDTIMEO_NEW
+#else
+# define SO_RCVTIMEO SO_RCVTIMEO_OLD
+# define SO_SNDTIMEO SO_SNDTIMEO_OLD
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
index a5264536e9..ba39d053ac 100644
--- a/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/mips/bits/socket-constants.h
@@ -20,6 +20,8 @@
# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
#endif
+#include <bits/timesize.h>
+
#define SOL_SOCKET 65535
#define SO_ACCEPTCONN 4105
#define SO_BROADCAST 32
@@ -30,9 +32,20 @@
#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
+
+#define SO_RCVTIMEO_OLD 4102
+#define SO_SNDTIMEO_OLD 4101
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_RCVTIMEO SO_RCVTIMEO_NEW
+# define SO_SNDTIMEO SO_SNDTIMEO_NEW
+#else
+# define SO_RCVTIMEO SO_RCVTIMEO_OLD
+# define SO_SNDTIMEO SO_SNDTIMEO_OLD
+#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
index f35488b375..6005fe257d 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/socket-constants.h
@@ -20,6 +20,8 @@
# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
#endif
+#include <bits/timesize.h>
+
#define SOL_SOCKET 1
#define SO_ACCEPTCONN 30
#define SO_BROADCAST 6
@@ -30,9 +32,20 @@
#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
+
+#define SO_RCVTIMEO_OLD 18
+#define SO_SNDTIMEO_OLD 19
+#define SO_RCVTIMEO_NEW 66
+#define SO_SNDTIMEO_NEW 67
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_RCVTIMEO SO_RCVTIMEO_NEW
+# define SO_SNDTIMEO SO_SNDTIMEO_NEW
+#else
+# define SO_RCVTIMEO SO_RCVTIMEO_OLD
+# define SO_SNDTIMEO SO_SNDTIMEO_OLD
+#endif
diff --git a/sysdeps/unix/sysv/linux/setsockopt.c b/sysdeps/unix/sysv/linux/setsockopt.c
index 12fd7bdcde..a1f98a937d 100644
--- a/sysdeps/unix/sysv/linux/setsockopt.c
+++ b/sysdeps/unix/sysv/linux/setsockopt.c
@@ -15,21 +15,81 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <errno.h>
-#include <signal.h>
#include <sys/socket.h>
-
+/* The kernel header with SO_* constants is used as default for _GNU_SOURCE,
+ however the new constants that describe 64-bit time support were added
+ only on v5.1. */
+#if !defined(SO_RCVTIMEO_NEW) || !defined(SO_RCVTIMEO_OLD)
+# include <bits/socket-constants.h>
+#endif
+#include <time.h>
+#include <sysdep.h>
#include <socketcall.h>
-#include <kernel-features.h>
-#include <sys/syscall.h>
-int
-setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+static int
+setsockopt_syscall (int fd, int level, int optname, const void *optval,
+ socklen_t len)
{
#ifdef __ASSUME_SETSOCKOPT_SYSCALL
- return INLINE_SYSCALL (setsockopt, 5, fd, level, optname, optval, len);
+ return INLINE_SYSCALL_CALL (setsockopt, fd, level, optname, optval, len);
#else
return SOCKETCALL (setsockopt, fd, level, optname, optval, len);
#endif
}
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+static int
+setsockopt32 (int fd, int level, int optname, const void *optval,
+ socklen_t len)
+{
+ int r = -1;
+
+ if (level != SOL_SOCKET)
+ return r;
+
+ switch (optname)
+ {
+ case SO_RCVTIMEO_NEW:
+ case SO_SNDTIMEO_NEW:
+ {
+ if (len < sizeof (struct __timeval64))
+ {
+ __set_errno (EINVAL);
+ break;
+ }
+
+ struct __timeval64 *tv64 = (struct __timeval64 *) optval;
+ if (! in_time_t_range (tv64->tv_sec))
+ {
+ __set_errno (EOVERFLOW);
+ break;
+ }
+
+ if (optname == SO_RCVTIMEO_NEW)
+ optname = SO_RCVTIMEO_OLD;
+ if (optname == SO_SNDTIMEO_NEW)
+ optname = SO_SNDTIMEO_OLD;
+
+ struct __timeval32 tv32 = valid_timeval64_to_timeval32 (*tv64);
+
+ r = setsockopt_syscall (fd, level, optname, &tv32, sizeof (tv32));
+ }
+ }
+
+ return r;
+}
+#endif
+
+int
+setsockopt (int fd, int level, int optname, const void *optval, socklen_t len)
+{
+ int r = setsockopt_syscall (fd, level, optname, optval, len);
+
+#ifndef __ASSUME_TIME64_SYSCALLS
+ if (r == -1 && errno == ENOPROTOOPT)
+ r = setsockopt32 (fd, level, optname, optval, len);
+#endif
+
+ return r;
+}
weak_alias (setsockopt, __setsockopt)
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
index a58d0b5f96..7233c6dd1d 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/socket-constants.h
@@ -20,6 +20,8 @@
# error "Never include <bits/socket-constants.h> directly; use <sys/socket.h> instead."
#endif
+#include <bits/timesize.h>
+
#define SOL_SOCKET 65535
#define SO_ACCEPTCONN 32768
#define SO_BROADCAST 32
@@ -30,9 +32,20 @@
#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
+
+#define SO_RCVTIMEO_OLD 8192
+#define SO_SNDTIMEO_OLD 16384
+#define SO_RCVTIMEO_NEW 68
+#define SO_SNDTIMEO_NEW 69
+#if (__TIMESIZE == 64 && __WORDSIZE == 32 \
+ && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32))
+# define SO_RCVTIMEO SO_RCVTIMEO_NEW
+# define SO_SNDTIMEO SO_SNDTIMEO_NEW
+#else
+# define SO_RCVTIMEO SO_RCVTIMEO_OLD
+# define SO_SNDTIMEO SO_SNDTIMEO_OLD
+#endif
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2021-06-08 20:48 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
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