Dmitry V. Levin [Sun, 25 Dec 2016 02:49:58 +0000 (02:49 +0000)]
printsiginfo: cast pointers to kernel_ureg_t instead of unsigned long
* printsiginfo.c (printsigval): Cast siginfo.si_ptr pointer
to kernel_ureg_t instead of unsigned long.
(print_si_info): Cast siginfo.si_addr and siginfo.si_call_addr pointers
to kernel_ureg_t instead of unsigned long.
Dmitry V. Levin [Wed, 21 Dec 2016 15:36:50 +0000 (15:36 +0000)]
msghdr: cast pointers to kernel_ureg_t instead of long
* msghdr.c (print_struct_msghdr): Cast msghdr.msg_name pointer
to kernel_ureg_t instead of long.
(dumpiov_in_msghdr): Cast msghdr.msg_iov pointer to kernel_ureg_t
instead of long.
Dmitry V. Levin [Fri, 23 Dec 2016 23:05:46 +0000 (23:05 +0000)]
process: remove redundant syserror checks
* process.c (SYS_FUNC(ptrace)): Remove syserror checks as both
print_siginfo_array and print_seccomp_fprog do the right thing
by using umoven_or_printaddr.
Dmitry V. Levin [Fri, 23 Dec 2016 12:45:03 +0000 (12:45 +0000)]
mem: change tracee address type from unsigned long to kernel_ureg_t
* mem.c (print_mmap, SYS_FUNC(remap_file_pages),
SYS_FUNC(subpage_prot)): Change the type of variables containing tracee
addresses from unsigned long to kernel_ureg_t.
Dmitry V. Levin [Thu, 22 Dec 2016 02:43:57 +0000 (02:43 +0000)]
pathtrace: change tracee address type from unsigned long to kernel_ureg_t
* pathtrace.c (upathmatch): Change address argument type
from unsigned long to kernel_ureg_t.
(pathtrace_match): Change the type of all tracee address variables
from unsigned long to kernel_ureg_t.
Dmitry V. Levin [Wed, 21 Dec 2016 03:03:09 +0000 (03:03 +0000)]
dm: change address argument type from unsigned long to kernel_ureg_t
* dm.c (dm_decode_dm_target_spec, dm_decode_dm_target_deps,
dm_decode_dm_name_list, dm_decode_dm_target_versions,
dm_decode_dm_target_msg, dm_decode_string): Change address argument type
from unsigned long to kernel_ureg_t.
Dmitry V. Levin [Tue, 20 Dec 2016 23:16:25 +0000 (23:16 +0000)]
decode_netlink: change address argument type from unsigned long to kernel_ureg_t
* defs.h (decode_netlink) Change address argument type
from unsigned long to kernel_ureg_t.
* netlink.c (fetch_nlmsghdr, decode_nlmsghdr_with_payload,
decode_netlink): Likewise.
Dmitry V. Levin [Tue, 20 Dec 2016 22:54:53 +0000 (22:54 +0000)]
print_seccomp_*: change address argument type from unsigned long to kernel_ureg_t
* defs.h (print_seccomp_filter, print_seccomp_fprog): Change
address argument type from unsigned long to kernel_ureg_t.
* seccomp.c (print_seccomp_filter, print_seccomp_fprog,
decode_seccomp_set_mode_strict): Likewise.
Dmitry V. Levin [Tue, 20 Dec 2016 22:47:02 +0000 (22:47 +0000)]
tprint_iov*: change address argument type from unsigned long to kernel_ureg_t
* defs.h (tprint_iov, tprint_iov_upto): Change address argument type
from unsigned long to kernel_ureg_t.
* io.c (tprint_iov, tprint_iov_upto): Likewise.
Dmitry V. Levin [Tue, 20 Dec 2016 21:46:10 +0000 (21:46 +0000)]
print_array: change tracee address type from unsigned long to kernel_ureg_t
* defs.h (print_array): Change start_addr type from unsigned long
to kernel_ureg_t.
* util.c (print_array): Likewise. Change the type of all tracee
address variables from unsigned long to kernel_ureg_t.
Dmitry V. Levin [Fri, 23 Dec 2016 11:16:11 +0000 (11:16 +0000)]
mem: remove redundant casts
* mem.c (SYS_FUNC(old_mmap)): Remove redundant cast
from kernel_ureg_t to unsigned long.
[S390] (SYS_FUNC(old_mmap_pgoff)): Remove redundant cast
from unsigned int to unsigned long.
Dmitry V. Levin [Thu, 22 Dec 2016 23:36:32 +0000 (23:36 +0000)]
desc: remove redundant casts
* desc.c (umove_kulong_array_or_printaddr): Remove redundant cast
from uint32_t to kernel_ulong_t.
(SYS_FUNC(pselect6)): Remove redundant casts from kernel_ulong_t
to unsigned long.
Dmitry V. Levin [Thu, 22 Dec 2016 17:07:24 +0000 (17:07 +0000)]
print_sigevent: remove redundant cast
* print_sigevent.c (print_sigevent): Remove redundant cast from
struct_sigevent.sigev_value.sival_ptr to unsigned long as the former
is not a pointer but an unsigned integer.
Dmitry V. Levin [Thu, 22 Dec 2016 22:34:23 +0000 (22:34 +0000)]
tests: fix xattr.test for the case when listxattr returns a long list
* tests/xattr.c (DEFAULT_STRLEN): New macro.
(main): Use it to limit the length passed to print_quoted_memory.
Print ellipsis when the list returned by listxattr is too long.
Dmitry V. Levin [Wed, 21 Dec 2016 13:11:11 +0000 (13:11 +0000)]
btrfs: cast pointers to kernel_ureg_t instead of unsigned long
* btrfs.c (btrfs_ioctl): Cast btrfs_ioctl_send_args.clone_sources
and btrfs_ioctl_vol_args_v2.qgroup_inherit pointers to kernel_ureg_t
instead of unsigned long.
Dmitry V. Levin [Wed, 21 Dec 2016 00:26:06 +0000 (00:26 +0000)]
ioctl: use uintptr_t for casts between 32-bit integers and pointers
* ioctl.c (compare): Cast pointer to uintptr_t before assigning
it to an integer.
(ioctl_lookup): Cast integer to uintptr_t before passing it
as a pointer.
Dmitry V. Levin [Wed, 21 Dec 2016 22:20:29 +0000 (22:20 +0000)]
travis: fix enabling of gcc -Werror builds
* travis-build.sh: Use DISTCHECK_CONFIGURE_FLAGS instead
of CHECK_CONFIGURE_FLAGS and ENABLE_GCC_WERROR.
[$CC == gcc]: Add --enable-gcc-Werror to DISTCHECK_CONFIGURE_FLAGS
instead of ENABLE_GCC_WERROR.
[$CHECK == coverage]: Add --enable-code-coverage
to DISTCHECK_CONFIGURE_FLAGS instead of CHECK_CONFIGURE_FLAGS.
Dmitry V. Levin [Mon, 19 Dec 2016 23:37:57 +0000 (23:37 +0000)]
tests: generate scno.h from syscallent.h for use by other tests
Provide scno.h with fallback definitions of all __NR_* constants known
to strace for the personbality being tested.
Some tests need just __NR_* constants without any kernel support.
Such tests can include "scno.h" after <asm/unistd.h> to get definitions
of these constants when system headers are too old.
* tests/generate_scno.c: New file.
* tests/.gitignore: Add generate_scno.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(scno.h): New rule.
(BUILT_SOURCES, CLEANFILES): Add scno.h.
Dmitry V. Levin [Tue, 20 Dec 2016 01:52:20 +0000 (01:52 +0000)]
x32: implement automatic argument truncation for compat syscalls
x32 syscalls starting with number 512 are compat syscalls that operate
on compat types. Set COMPAT_SYSCALL_TYPES flag to these syscall entries
and make get_syscall_args truncate arguments of syscalls that have this
flag set, to avoid unpleasant alternative of adding multiple
widen_to_ulong invocations to individual syscall parsers.
preadv, pwritev, preadv2, and pwritev2 are exceptions: while these
syscalls operate on compat types, the offset argument has a regular
64-bit type, so the automatic argument truncation cannot be applied.
* defs.h (COMPAT_SYSCALL_TYPES): New macro.
* syscall.c (CST): New macro, defined to COMPAT_SYSCALL_TYPES.
* linux/ia64/syscallent.h: Do not include "../i386/syscallent.h"
unless [CST > 0].
* linux/x32/syscallent.h [512..533, 536..545]: Add CST flag.
* linux/x86_64/get_syscall_args.c (get_syscall_args): Truncate arguments
of compat syscalls to 32-bit values.
* tests/ksysent.c (CST): New macro, defined to 0.
* tests/nsyscalls.c (CST): Likewise.
Dmitry V. Levin [Tue, 20 Dec 2016 01:11:53 +0000 (01:11 +0000)]
x32: fix decoding of mprotect and pkey_mprotect syscall arguments
As there are no compat versions of mprotect or pkey_mprotect syscalls
in x32 personality, "addr", "len", and "prot" syscall arguments have
kernel_ulong_t type and should be printed accordingly.
* mem.c (do_mprotect): Retrieve 1st, 2nd and 3rd arguments using
getarg_klu, print them using printaddr_klu, PRI_klu format,
and printflags64, correspondingly.
There is no compat (and no 32-bit version, ever) for x32 ABI, so
kernel's long type should be used for arguments' values.
The only remaining thing is a pointer to cmdline string, but it is
currently broken on x32 anyway.
* kexec.c (SYS_FUNC(kexec_file_load)): Print the cmdline_len argument
as kernel long, retrieve it via getarg_klu; use printflags64 for
printing the flags argument, retrieve it via getarg_klu.
Dmitry V. Levin [Mon, 19 Dec 2016 16:56:45 +0000 (16:56 +0000)]
Use kernel_ulong_t instead of unsigned long long where appropriate
* defs.h (printaddr_ull): Rename to printaddr_klu, change argument
type from unsigned long long to kernel_ulong_t. All callers updated.
(getarg_ull): Rename to getarg_klu, change return value type
from unsigned long long to kernel_ulong_t. All callers updated.
(PRI_kl, PRI_kld, PRI_klu, PRI_klx): New macros.
* bjm.c (SYS_FUNC(init_module)): Print kernel_ulong_t type using
PRI_klu format.
* desc.c (SYS_FUNC(pselect6)): Likewise.
* fadvise.c (SYS_FUNC(fadvise64)): Likewise.
* lookup_dcookie.c (SYS_FUNC(lookup_dcookie)): Likewise.
* mq.c (SYS_FUNC(mq_timedsend), SYS_FUNC(mq_timedreceive)): Likewise.
* kcmp.c (SYS_FUNC(kcmp)): Print kernel_ulong_t type using
PRI_klx format.
* keyctl.c (SYS_FUNC(keyctl)): Likewise.
* pkeys.c (SYS_FUNC(pkey_alloc)): Likewise.
* prctl.c (print_prctl_args, SYS_FUNC(prctl), SYS_FUNC(arch_prctl)):
Print kernel_ulong_t type using PRI_kld, PRI_klu, or PRI_klx format.
* util.c (printaddr_ull): Rename to printaddr_klu, change argument
type from unsigned long long to kernel_ulong_t, print it using
PRI_klx format.
(getarg_ull): Rename to getarg_klu, change return value type
from unsigned long long to kernel_ulong_t, print it using
PRI_klx format.
Dmitry V. Levin [Mon, 19 Dec 2016 15:59:47 +0000 (15:59 +0000)]
block.c: change type of long long fileds to int64_t
* block.c (struct_blkpg_partition): Change type of start and length
fields from long long to int64_t.
(print_blkpg_req): Print them using PRId64 format.
Dmitry V. Levin [Fri, 16 Dec 2016 20:28:09 +0000 (20:28 +0000)]
configure: define SIZEOF_KERNEL_LONG_T macro
Provide SIZEOF_KERNEL_LONG_T macro in addition to SIZEOF_LONG and
SIZEOF_LONG_LONG for checking of kernel_long_t and kernel_ulong_t
types at the time of preprocessing.
Dmitry V. Levin [Mon, 19 Dec 2016 12:05:31 +0000 (12:05 +0000)]
struct tcb: make types of syscall arguments unsigned
This is the first step in the direction of revisiting current practice
of indiscriminate use of signed types for syscall arguments and memory
addresses.
* kernel_types.h (kernel_ureg_t): New type, typedef to unsigned long.
* defs.h (struct tcb): Change type of u_arg from long to kernel_ureg_t.
[HAVE_STRUCT_TCB_EXT_ARG]: Change type of ext_arg from long long
to unsigned long long.
* desc.c (decode_select): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(oldselect)): Change type of select_args from long
to kernel_ureg_t.
* io.c (print_lld_from_low_high_val): Remove no longer needed cast
of syscall arguments to unsigned long.
* lseek.c (SYS_FUNC(lseek)): Cast syscall argument from unsigned long
to long.
* mem.c (print_mmap): Change type of syscall arguments from long
to kernel_ureg_t.
(SYS_FUNC(old_mmap), SYS_FUNC(old_mmap_pgoff)): Change type of u_arg
from long to kernel_ureg_t.
(SYS_FUNC(mmap), SYS_FUNC(mmap_pgoff), SYS_FUNC(mmap_pgoff)): Remove
no longer needed cast of syscall arguments to unsigned long.
* pathtrace.c (pathtrace_match): Change type of args and select_args
from long to kernel_ureg_t.
* util.c (getarg_ull): Remove no longer needed casts of syscall
arguments to unsigned types.
Dmitry V. Levin [Sun, 18 Dec 2016 17:20:44 +0000 (17:20 +0000)]
Change scno type from long to unsigned long
Use an unsigned type for syscall numbers as they are not intended
for signed arithmetics. Introduce kernel_scno_t as a typedef
to unsigned long, that could be changed later to kernel_ulong_t.
* kernel_types.h (kernel_scno_t): New type, typedef to unsigned long.
* defs.h (struct tcb): Change type of scno field from long
to kernel_scno_t.
(syscall_name): Change argument type from long to kernel_scno_t.
(scno_in_range, scno_is_valid): Change argument type from unsigned long
to kernel_scno_t.
* linux/aarch64/set_scno.c (arch_set_scno): Change scno argument type
from long to kernel_scno_t.
* linux/alpha/set_scno.c (arch_set_scno): Likewise.
* linux/arc/set_scno.c (arch_set_scno): Likewise.
* linux/arm/set_scno.c (arch_set_scno): Likewise.
* linux/avr32/set_scno.c (arch_set_scno): Likewise.
* linux/bfin/set_scno.c (arch_set_scno): Likewise.
* linux/crisv10/set_scno.c (arch_set_scno): Likewise.
* linux/hppa/set_scno.c (arch_set_scno): Likewise.
* linux/i386/set_scno.c (arch_set_scno): Likewise.
* linux/ia64/set_scno.c (arch_set_scno): Likewise.
* linux/m68k/set_scno.c (arch_set_scno): Likewise.
* linux/metag/set_scno.c (arch_set_scno): Likewise.
* linux/microblaze/set_scno.c (arch_set_scno): Likewise.
* linux/mips/set_scno.c (arch_set_scno): Likewise.
* linux/nios2/set_scno.c (arch_set_scno): Likewise.
* linux/or1k/set_scno.c (arch_set_scno): Likewise.
* linux/powerpc/set_scno.c (arch_set_scno): Likewise.
* linux/riscv/set_scno.c (arch_set_scno): Likewise.
* linux/s390/set_scno.c (arch_set_scno): Likewise.
* linux/sh/set_scno.c (arch_set_scno): Likewise.
* linux/sh64/set_scno.c (arch_set_scno): Likewise.
* linux/sparc/set_scno.c (arch_set_scno): Likewise.
* linux/tile/set_scno.c (arch_set_scno): Likewise.
* linux/x86_64/set_scno.c (arch_set_scno): Likewise.
* linux/xtensa/set_scno.c (arch_set_scno): Likewise.
* linux/aarch64/get_scno.c (arch_get_scno): Change scno variable type
from long to kernel_scno_t.
* linux/alpha/get_scno.c (arch_get_scno): Likewise.
* linux/arm/get_scno.c (arch_get_scno): Likewise.
* linux/sh/get_scno.c (arch_get_scno): Likewise.
* linux/x86_64/get_scno.c (arch_get_scno): Likewise.
* syscall.c (arch_set_scno): Likewise.
(shuffle_scno): Change return type from long to kernel_scno_t.
(syscall_name): Change argument type from long to kernel_scno_t.