network: recvmsg and sendmsg standard compliance (BZ#16919)
POSIX specifies that both msghdr::msg_iovlen and msghdr::msg_controllen
to be of size int and socklen_t respectively. However Linux defines it as
both size_t and for 64-bit it requires some adjustments to make the
functions standard compliance.
This patch fixes it by creating a temporary header and zeroing the pad
fields for 64-bits architecture where size of size_t exceeds the size of
the int.
Also the new recvmsg and sendmsg implementation is only added on libc,
with libpthread only containing a compat symbol.
Tested on x86_64, i686, aarch64, armhf, and powerpc64le.
* conform/data/sys/socket.h-data (msghdr.msg_iovlen): Remove xfail-
and change to correct expected type.
(msghdr.msg_controllen): Likewise.
(cmsghdr.cmsg_len): Likewise.
* sysdeps/unix/sysv/linux/bits/socket.h (msghdr.msg_iovlen): Fix
expected POSIX assumption about the size.
(msghdr.msg_controllen): Likewise.
(msghdr.__glibc_reserved1): Likewise.
(msghdr.__glibc_reserved2): Likewise.
(cmsghdr.cmsg_len): Likewise.
(cmsghdr.__glibc_reserved1): Likewise.
* nptl/Makefile (libpthread-routines): Remove ptw-recvmsg and ptw-sendmsg.
Add ptw-oldrecvmsg and ptw-oldsendmsg.
(CFLAGS-sendmsg.c): Remove rule.
(CFLAGS-recvmsg.c): Likewise.
(CFLAGS-oldsendmsg.c): Add rule.
(CFLAGS-oldrecvmsg.c): Likewise.
* sysdeps/unix/sysv/linux/alpha/Versions [libc] (GLIBC_2.24): Add
recvmsg and sendmsg.
* sysdeps/unix/sysv/linux/aarch64/Version [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/arm/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/hppa/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/i386/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/ia64/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/m68k/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/microblaze/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/nios2/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions [libc]
(GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/sh/Versions [libc] (GLIBC_2.24): Likewise.
* sysdeps/unix/sysv/linux/sparc/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/Versions [libc] (GLIBC_2.24):
Likewise.
( sysdeps/unix/sysv/linux/tile/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/Versions [libc]
(GLIBC_2.24): Likewise.
( sysdeps/unix/sysv/linux/x86_64/64/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/x84_64/Versions [libc] (GLIBC_2.24):
Likewise.
* sysdeps/unix/sysv/linux/Makefile
[$(subdir) = socket)] (sysdep_headers): Add oldrecvmsg and oldsendmsg.
(CFLAGS-sendmsg.c): Add rule.
(CFLAGS-recvmsg.c): Likewise.
(CFLAGS-oldsendmsg.c): Likewise.
(CFLAGS-oldrecvmsg.c): Likewise.
* sysdeps/unix/sysv/linux/check_native.c (__check_native): Fix msghdr
initialization.
* sysdeps/unix/sysv/linux/check_pf.c (make_request): Likewise.
* sysdeps/unix/sysv/linux/ifaddrs.c (__netlink_request): Likewise.
* sysdeps/unix/sysv/linux/oldrecvmsg.c: New file.
* sysdeps/unix/sysv/linux/oldsendmsg.c: Likewise.
* sysdeps/unix/sysv/linux/recvmsg.c (__libc_recvmsg): Adjust msghdr
iovlen and controllen fields to adjust to POSIX specification.
* sysdeps/unix/sysv/linux/sendmsg.c (__libc_sendmsg): Likewise.
* sysdeps/unix/sysv/linux/aarch64/libc.abilist: New version and
added recvmsg and sendmsg.
* sysdeps/unix/sysv/linux/alpha/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libc.abilist: Likewise
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist:
Likewise.
* sysdeps/unix/linux/powerpc/powerpc32/nofpu/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Likewise.
* sysdepe/unix/sysv/linux/powerpc/powerpc64/libc.abilist: Likewise.
Likewise.
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilepro/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libc.abilist: Likewise.
Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise.
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