Dmitry V. Levin [Wed, 2 May 2018 15:23:46 +0000 (15:23 +0000)]
Introduce f_owner_ex.h
Some headers define struct f_owner_ex, some struct __kernel_f_owner_ex,
we have to support both variants.
* configure.ac (AC_CHECK_TYPES): Check for "struct f_owner_ex"
and "struct __kernel_f_owner_ex" in <linux/fcntl.h>.
* f_owner_ex.h: New file.
* Makefile.am (strace_SOURCES): Add it.
Masatake YAMATO [Wed, 2 May 2018 08:11:07 +0000 (17:11 +0900)]
tests/ioctl_kvm_run.c: handle cpuid at the end of vcpu dentry
Since Linux 4.16, kernel appends the cpuid as suffix to the entry
for a kvm vcpu in /proc/$pid/fd like:
anon_inode:kvm-vcpu:0
That was
anon_inode:kvm-vcpu
This kernel change causes the test case failure on newer kernels.
Update the test to deal with the new name as well as the old one.
* tests/ioctl_kvm_run.c: Include unistd.h for using readlink(2).
(vcpu_dev_should_have_cpuid): New function for detecting whether
a proc entry for given fd has the cpuid suffix or not.
(main): Trim vcpu_dev to remove the cpuid suffix if needed.
(vcpu_dev): Remove const modifier.
xlat: check that system definitions match fallback definitions
For each constant that is accompanied by a fallback definition,
generate a sanity check that the definition provided by system headers
matches the fallback definition.
* gcc_compat.h (DIAG_PUSH_IGNORE_TAUTOLOGICAL_COMPARE,
DIAG_POP_IGNORE_TAUTOLOGICAL_COMPARE): New macros.
* xlat/gen.sh (cond_def): Generate a code that checks the system
definition against the default.
(gen_header): Generate a code that includes "gcc_compat.h" and
"static_assert.h".
xlat: override values of F_SETOWN_EX and F_GETOWN_EX constants
Linux kernel commit v2.6.32-rc7~23 has changed values of F_SETOWN_EX
and F_GETOWN_EX constants introduced by commit v2.6.32-rc1~96 to fix
the conflict with F_GETLK64 and F_SETLK64 constants.
Looks like the best way to handle this situation is to pretend that
old values of F_SETOWN_EX and F_GETOWN_EX didn't exist.
xlat: override values of KEY_RFKILL and KEY_BRIGHTNESS_MIN constants
KEY_RFKILL and KEY_NUMERIC_A constants were introduced by Linux kernel
commits v2.6.33~17^2~2 and v4.1-rc1~150^2~1^10~6, respectively.
Apparently, RHEL6 introduced an alternative KEY_RFKILL constant
with the same value as upstream KEY_NUMERIC_A.
KEY_BRIGHTNESS_MIN and KEY_BRIGHTNESS_MAX constants were introduced
by Linux kernel commit v3.16-rc1~30^2~6^2~1^2~7.
Apparently, RHEL7 introduced an alternative KEY_BRIGHTNESS_MIN constant
with the same value as upstream KEY_BRIGHTNESS_MAX.
Downstream vendors are *not* allowed to do this.
Ignore the system value of KEY_RFKILL and KEY_BRIGHTNESS_MIN.
Linux kernel commit v4.9-rc8~12^2 has changed the value of KEY_DATA
constant introduced by commit v4.7-rc6~32^2~6^2 because the old value
was already used by KEY_FASTREVERSE.
Looks like the best way to handle this situation is to pretend that
the old value of KEY_DATA didn't exist.
xlat: override the value of AUDIT_FEATURE_CHANGE constant
Linux kernel commit v3.15-rc1~18^2~1 has changed the value
of AUDIT_FEATURE_CHANGE constant introduced by commit v3.13-rc1~19^2~20
which is of course an ABI breakage that affected 3.13 and 3.14 kernel
releases as well as their LTS derivatives.
Linux kernel commit v3.15-rc1~18^2~1 also claims that the old value
of AUDIT_FEATURE_CHANGE was ignored by userspace because of the
established convention how netlink messages for the audit system
are divided into blocks.
Looks like the best way to handle this situation is to pretend that
the old value of AUDIT_FEATURE_CHANGE didn't exist.
build: try to use _Static_assert if static_assert is not available
* configure.ac: Check for _Static_assert if static_assert
is not available.
* static_assert.h [!HAVE_STATIC_ASSERT && HAVE__STATIC_ASSERT]
(static_assert): Define to _Static_assert.
evdev: support various types of xlats in decode_bitset
* evdev.c (enum xlat_type): New enumeration.
(printxval_dispatch): New function.
(decode_bitset_): Rename from decode_bitset, add decode_nr_size
and xt arguments, call printxval_dispatch instead of printxval.
(decode_bitset): Add a decode_bitset_ wrapper that derives
decode_nr_size from the ARRAY_SIZE of decode_nr.
(bit_ioctl, evdev_read_ioctl): Update decode_bitset calls.
There are quite a few xlats that start from 0 and not too sparse,
we can push the search time for them down to O(1).
* defs.h (printxval_indexn_ex): New declaration.
(printxval_indexn, printxval_index, printxval_index_ex): New macros.
* xlat.c (printxval_sized): Rename from printxval_searchn_ex,
add fn argument, call it instead of xlat_search.
(printxval_searchn_ex): Implement as a thin wrapper around
printxval_sized using xlat_search as a search function.
(xlat_idx): New function.
(printxval_indexn_ex): New function, a thin wrapper around
printxval_sized using xlat_idx as a search function.
* xlat/gen.sh: Add support for "#value_indexed" directive.
keyctl: use printxval_d for printing keyring serial number
* keyctl.c (print_keyring_serial_number): Use printxval_d instead of
looking up and printing xlat value manually.
* xlat/key_spec.in: Add "#val_type int" so the xlat values have sign
bit propagated.
ioprio: use sprintxval instead of xlookup and string/value printing
In order to respect current xlat style.
* ioprio.c (sprint_ioprio): Use sprintxval for producing string
representation of ioprio class, use the produced string representation
in resulting xsprintf.
tests/ioctl_evdev.c (TEST_NULL_ARG_EX): Rename from TEST_NULL_ARG, add
str argument, print it instead of #cmd.
(TEST_NULL_ARG): Implement as a TEST_NULL_ARG_EX wrapper.
(main): Add checks for EVIOCSABS and EVIOCGBIT ioctls.
* xlat/evdev_switch.in (SW_RADIO): Remove, as it was renamed to
SW_RFKILL_ALL and marked as deprecated by Linux commit v2.6.26-rc5~32^2.
(SW_PEN_INSERTED): New constant, was added by Linux commit v4.7~11^2~7.
* btrfs.c (btrfs_print_balance_args): Print devid field using
PRINT_FIELD_DEV.
(MPERS_PRINTER_DECL(btrfs_ioctl)) <case BTRFS_IOC_DEV_INFO,
case BTRFS_IOC_GET_DEV_STATS, case BTRFS_IOC_SCRUB,
case BTRFS_IOC_SCRUB_PROGRESS>: Likewise.
(MPERS_PRINTER_DECL(btrfs_ioctl)) <case BTRFS_IOC_DEV_REPLACE>: Print
start.srcdevid field using PRINT_FIELD_DEV.
* tests/btrfs.c: Update expected output.
btrfs: print cont_reading_from_srcdev_mode as xlat
* xlat/btrfs_cont_reading_from_srcdev_mode.in: New file.
* btrfs.c: Include "xlat/btrfs_cont_reading_from_srcdev_mode.h".
(MPERS_PRINTER_DECL(btrfs_ioctl)) <case BTRFS_IOC_DEV_REPLACE>: Print
named values for the
struct btrfs_ioctl_dev_replace_args.start.cont_reading_from_srcdev_mode
field.
* tests/btrfs.c: Include "xlat/btrfs_cont_reading_from_srcdev_mode.h".
(btrfs_test_dev_replace_ioctl): Update expected output.
btrfs: make BTRFS_IOC_GET_DEV_STATS error statistics output more structured
* btrfs.c (MPERS_PRINTER_DECL(btrfs_ioctl)) <case
BTRFS_IOC_GET_DEV_STATS>: Print array index in square brackets before
the value in order to avoid confusion.
* tests/btrfs.c (btrfs_test_get_dev_stats_ioctl): Update expected output.
ioctl: print ioctl number in accordance with xlat verbosity setting
* ioctl.c (SYS_FUNC(ioctl)): Print ioctl command name in accordance
with the current xlat_verbosity setting.
* tests/btrfs.c (sprint_xlat_): New function.
(ioc): New macro, a wrapper for sprint_xlat_.
Update expected output.
file_ioctl: make abbreviated output more structured
* file_ioctl.c (file_ioctl): Print fm_extents field name only in case
of non-abbreviated output.
* tests/btrfs.c (btrfs_test_ino_path_ioctls): Update expected output.
* btrfs.c (print_u64, print_member_u64, print_key_value_internal,
print_key_value): Remove.
(btrfs_print_balance_args): Use PRINT_FIELD_U64 instead of
print_member_u64.
(btrfs_print_tree_search): Use PRINT_FIELD_U64 instead of
print_key_value.
(MPERS_PRINTER_DECL(btrfs_ioctl)): Use PRINT_FIELD_U64 instead of manual
UINT64_MAX printing.
* tests/btrfs.c: Update expected output in order to account fields that
are now affected by xlat_verbosity setting.
As it looks like there's no reason to skip their printing.
* btrfs.c (print_key_value_internal): Do not check value argument
for holding non-zero value.
* tests/btrfs.c (btrfs_print_search_key): Update expected output.
tests/btrfs.c: support volumes with mixed data/metadata in BTRFS_IOC_BALANCE_V2
For these volumes, pend/vend should be the same for data and meta.
* tests/btrfs.c (btrfs_test_balance_ioctls): Set args.meta.pend and
args.meta.vend to the same values as args.data.pend and args.data.vend,
respectively.
tests/btrfs.c: add pid suffix to the created directory, remove it on exit
If multiple tests are running simultaneously in the same directory,
conflicts (and test failures) may happen.
* tests/btrfs.c (path, dir_name_fmt, dir_name): New variables.
(btrfs_test_ino_path_ioctls): Use dir_name for printing directory name.
(rm_test_dir): New function.
(main): Generate dir_name, use it instead of fixed name, add rm_test_dir
as an atexit handler.
btrfs: print abbreviations and field names more consistently
* btrfs.c (btrfs_print_data_container_header): Do not print ", val=".
(btrfs_print_ino_path_container): Print val field name only in case
of non-abbreviated output.
(btrfs_print_qgroup_inherit): Print qgroups field name only in case
of non-abbreviated output.
(btrfs_print_tree_search): Print buf field name only in case
of non-abbreviated output.
(MPERS_PRINTER_DECL(btrfs_ioctl)) <case BTRFS_IOC_SEND>: Print
clone_sources field name only in case of non-abbreviated output.
(MPERS_PRINTER_DECL(btrfs_ioctl)) <case BTRFS_IOC_SPACE_INFO>: Print
spaces field name only in case of non-abbreviated output.
* tests/btrfs.c: Update expected output.
btrfs: convert btrfs_print_{objectid,key_type} to PRINT_FIELD_XVAL_U
* btrfs.c (btrfs_print_key_type, btrfs_print_objectid): Convert into
thin wrappers around PRINT_FIELD_XVAL_U.
(btrfs_print_data_container_header, btrfs_print_tree_search,
MPERS_PRINTER_DECL(btrfs_ioctl)): Update calls to btrfs_print_key_type
and btrfs_print_objectid in accordance with the new calling convention.
(print_objectid_callback): Use printxvals_ex directly instead of
btrfs_print_objectid call.
* tests/btrfs.c (btrfs_print_objectid, btrfs_print_key_type): Update
expected output.
bpf: print fields that interpreted as pointers using printaddr64
* bpf.c (BEGIN_BPF_CMD_DECODER(BPF_MAP_LOOKUP_ELEM),
BEGIN_BPF_CMD_DECODER(BPF_MAP_UPDATE_ELEM)): Print key and value
fields using PRINT_FIELD_ADDR64.
(BEGIN_BPF_CMD_DECODER(BPF_MAP_DELETE_ELEM)): Print key field using
PRINT_FIELD_ADDR64.
(BEGIN_BPF_CMD_DECODER(BPF_MAP_GET_NEXT_KEY)): Print key and next_key
field using PRINT_FIELD_ADDR64.
(BEGIN_BPF_CMD_DECODER(BPF_PROG_LOAD)): Print insns and log_buf fields
using PRINT_FIELD_ADDR64.
(BEGIN_BPF_CMD_DECODER(BPF_PROG_TEST_RUN)): Print data_in and data_out
fields using PRINT_FIELD_ADDR64.
* tests/bpf.c: Update expected output.
* Makefile.am (today): Consistently print the UTC date in C locale.
* configure.ac (RPM_CHANGELOGTIME, DEB_CHANGELOGTIME): Likewise.
* maint/update_copyright_years.sh: Likewise.
* copyright-year-gen: Likewise. When $SOURCE_DATE_EPOCH is non-empty,
use it as fallback date before the current system date.
* file-date-gen: Consistently print the UTC date in C locale.
When $SOURCE_DATE_EPOCH is non-empty, use it as fallback date
before the current system date.
Reported-by: Chris Lamb <lamby@debian.org> Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896016 Closes: https://github.com/strace/strace/pull/68
bpf: add support for map_name and map_ifindex fields in BPF_MAP_CREATE
* bpf.c (BEGIN_BPF_CMD_DECODER(BPF_MAP_CREATE)): Decode map_name
and map_ifindex fields that were added in Linux commits
v4.15-rc1~84^2~605^2~3 and v4.16-rc1~123^2~145^2~5^2~8, respectively.
* bpf_attr.h (struct BPF_MAP_CREATE_struct): Add map_name
and map_ifindex fields.
* tests/bpf.c (init_BPF_MAP_CREATE_attr7): New function.
(BPF_MAP_CREATE_checks): Remove const qualifier, add two more checks.
bpf: improve handling of various sizes of BPF_MAP_CREATE attributes
* bpf.c (BEGIN_BPF_CMD_DECODER(BPF_MAP_CREATE)): Skip printing
the rest of the structure if len is less than the offset of the end
of max_entries, map_flags, or inner_map_fd field.
* tests/bpf.c (BPF_MAP_CREATE_checks): Add two more checks.
btrfs: use umove_or_printaddr_ignore_syserror instead of u_error mangling
* btrfs.c (MPERS_PRINTER_DECL(btrfs_ioctl)) <case
BTRFS_IOC_TREE_SEARCH_V2>: Use umove_or_printaddr_ignore_syserror
instead of tcp->u_error mangling around umove_or_printaddr call.
* defs.h (umove_or_printaddr64_ignore_syserror): New macro, a thin
wrapper around umoven_or_printaddr64_ignore_syserror.
(umove_or_printaddr_ignore_syserror): New macro, a thin wrapper around
umoven_or_printaddr_ignore_syserror.
As there are some possible users for it, apparently.
* defs.h (XLAT_STYLE_FORMAT_MASK): Update the value in order to
accommodate XLAT_STYLE_FMT_D.
(enum xlat_style) <XLAT_STYLE_FMT_D>: New enumeration entity.
(printxval64_d, printxval_d): New function, a shorthand for
printxvals_ex with a single xlat and XLAT_STYLE_FMT_D xlat style.
* xlat.c (sprint_xlat_val): Handle XLAT_STYLE_FMT_D.
Since xlat printing routines now have a notion of "style" that should be
used for printing xlat values, we can also employ this argument for
passing information about number printing format (unsigned decimal
or hexadecimal, so far).
* defs.h (XLAT_STYLE_FORMAT_SHIFT, XLAT_STYLE_FORMAT_MASK): New macro
constant.
(enum xlat_style) <XLAT_STYLE_FMT_X, XLAT_STYLE_FMT_U>: New enumeration
entities.
* xlat.c (xlat_verbose, xlat_format): New macro for checking specific
aspect of style argument.
(get_xlat_style): Use xlat_verbose for checking xlat verbosity style.
(sprint_xlat_val, print_xlat_val): New function, for easing printing
raw constant number with respect to printing format style.
(printxvals_ex, sprintxval_ex, printxval_searchn_ex,
printxval_searchn_ex, sprintflags_ex, printflags_ex, print_xlat_ex):
Use xlat_verbose macro for xlat verbosity style checks. Use
print_xlat_val instead of direct raw xlat value printing.
* futex.c [!FUTEX_OP_OPARG_SHIFT] (FUTEX_OP_OPARG_SHIFT): New macro
constant.
(SYS_FUNC(futex)): Use print_xlat for printing FUTEX_OP_OPARG_SHIFT
named constant.
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