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Remove these flags that are unused since commit v4.15~26.
They might be introduced later with a different meaning.
* defs.h (QUAL_SIGNAL, QUAL_READ, QUAL_WRITE): Remove.
Since the defs.h contains unrelated declarations which are
redundant (and sometimes conflicting) for other binaries included
in the strace package, move SUPPORTED_PERSONALITIES defintions
to a separate file.
* defs.h: Include "supported_personalities.h".
(SUPPORTED_PERSONALITIES): Move ...
* supported_personalities.h: ... to the new file.
* Makefile.am (strace_SOURCES): Add it.
Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Make string_to_uint* functions available to other binaries
included in the strace package.
* string_to_uint.h: New file.
* defs.h: Include it.
(string_to_uint_ex, string_to_uint_upto, string_to_uint): Move
to string_to_uint.h.
* util.c (string_to_uint_ex, string_to_uint): Move ...
* string_to_uint.c: ... to the new file.
* Makefile.am (strace_SOURCES): Add string_to_uint.h and string_to_uint.c.
Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
* netlink_route.h: New file.
* rtnl_link.c: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* defs.h (arp_hardware_types, iffflags): New xlat prototypes.
* netlink_route.c: Include "netlink_route.h"
and <linux/rtnetlink.h>.
(netlink_route_decoder_t): New typedef.
(route_decoders): New array.
(decode_netlink_route): Use it.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
The side effect of #include "xlat/nl_route_types.h" is
RTM_* constants properly defined in that header file.
While netlink.c does not use these constants itself,
netlink_route.c is going to need them soon.
* defs.h (nl_route_types): New xlat prototype.
* netlink.c: Move inclusion of "xlat/nl_route_types.h" ...
* netlink_route.c: ... here.
In order to allow usage of utility functions by other binaries
included in the strace package (like the upcoming asinfo utility),
these functions should be moved to separate files.
* error_prints.h: New file.
* xmalloc.h: Likewise.
* defs.h: Include "xmalloc.h" and "error_prints.h".
(error_msg, error_msg_and_die, error_msg_and_help, perror_msg,
perror_msg_and_die): Move to error_prints.h.
(xcalloc, xmalloc, xreallocarray, xstrdup, xstrndup): Move to xmalloc.h.
* strace.c (die): Remove static quialifier to make visible
by error_prints.c.
(error_msg, error_msg_and_die, error_msg_and_help, perror_msg,
perror_msg_and_die, verror_msg): Move ...
* error_prints.c: ... to the new file.
* xmalloc.c: Include "config.h", <stdlib.h>, <string.h>,
"error_prints.h", and "xmalloc.h" instead of "defs.h".
Use int instead of bool. Fix codestyle.
* Makefile.am (strace_SOURCES): Add error_prints.c, error_prints.h,
and xmalloc.h.
Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
In an attempt to improve readability.
* defs.h (DECL_IOCTL, DECL_NETLINK, DECL_PRINTNUM, DECL_PRINTNUM_ADDR,
ATTRIBUTE_FORMAT): Add comment that marks end of macro definition.
* netlink_sock_diag (DECL_NETLINK_DIAG_DECODER): Likewise.
* nlattr.h (DECL_NLA): Likewise.
In many places where kernel expects a NUL-terminated string of length
up to a known fixed limit, e.g. when a NUL-terminated string is
a fixed-size field of a structure, strace does not print the last byte
assuming it is NUL, which is not always the case.
Change output format for such strings to distinguish NUL-terminated
strings from non-NUL-terminated ones: append ellipsis to the output
when the string is not NUL-terminated.
* defs.h (print_quoted_cstring): New prototype.
* util.c (print_quoted_cstring): New function.
(printpathn): Use it instead of print_quoted_string with
QUOTE_0_TERMINATED argument.
* print_fields.h (PRINT_FIELD_CSTRING): Likewise.
* btrfs.c (btrfs_ioctl): Likewise.
* dirent.c (SYS_FUNC(getdents)): Likewise.
* dirent64.c (SYS_FUNC(getdents64)): Likewise.
* print_ifindex.c (print_ifindex): Likewise.
* sysmips.c (SYS_FUNC(sysmips)): Likewise.
* ubi.c (ubi_ioctl): Likewise.
* tests/tests.h (print_quoted_cstring): New prototype.
* tests/print_quoted_string.c (print_quoted_cstring): New function.
* tests/ioctl_block.c (main): Update expected output.
* tests/ioctl_dm.c (main): Likewise.
* tests/ioctl_loop.c (print_loop_info, print_loop_info64): Likewise.
* tests/netlink_crypto.c (test_crypto_msg_newalg): Likewise.
Some macros related to kernel types are defined both in defs.h and
tests/tests.h. Avoid this redundancy by moving these definitions
to kernel_types.h.
* defs.h (PRI_kl, PRI_kld, PRI_klu, PRI_klx, PRI__64, PRI__d64,
PRI__u64, PRI__x64): Move ...
* kernel_types.h: ... here.
* tests/tests.h (PRI__64, PRI__d64, PRI__u64, PRI__x64): Remove.
By default for MIPS64 in Android __u64 type is exported
as unsigned long long. This caused compilation -Wformat warnings
and would break the build if -Werror is used.
* defs.h [SIZEOF_LONG != 4 && MIPS && __ANDROID__] (PRI__64): Change
from "l" to "ll".
* defs.h (struct path_set): New structure.
(global_path_set): New variable prototype.
(tracing_paths): Change macro body to use global_path_set variable.
(pathtrace_select_set): Add "struct path_set *" argument.
(pathtrace_match_set): Likewise. Change return type to bool.
(pathtrace_select, pathtrace_match): Change into thin macro wrappers
around pathtrace_select_set and pathtrace_match_set, repsectively.
* pathtrace.c (global_path_set): New variable.
(storepath, pathtrace_select_set): Add "struct path_set *" argument.
(pathmatch, upathmatch, fdmatch, pathtrace_match_set): Likewise.
Change return type to bool.
print_sockaddr does not use its first argument, remove it.
* defs.h (print_sockaddr): Remove argument.
* sockaddr.c (print_sockaddr): Remove argument. All callers updated.
* sock.c (PRINT_IFREQ_ADDR): Likewise.
* bpf_sock_filter.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* xlat/skf_ad.in: New file.
* defs.h (decode_sock_fprog, print_sock_fprog): New prototypes.
* fetch_bpf_fprog.c (get_bpf_fprog_size): New mpers printer.
* net.c (print_getsockopt): Use decode_sock_fprog to print
socket filter programs for SO_GET_FILTER socket option.
(print_setsockopt): Use decode_sock_fprog and get_bpf_fprog_size
to print socket filter programs for SO_ATTACH_FILTER
and SO_ATTACH_REUSEPORT_CBPF socket options.
* NEWS: Mention this.
Linux socket filter uses almost the same classic BPF as seccomp filter,
The only difference noticeable from strace PoV is the meaning of generic
multiuse field.
Transform the parser of seccomp filters to a more generic parser
of classic BPF, parametrized with a method of parsing the generic
multiuse field in BPF_STMT.
* bpf_filter.c: New file.
* bpf_filter.h: Likewise.
* bpf_fprog.h: Likewise.
* bpf_seccomp_filter.c: Likewise.
* fetch_bpf_fprog.c: Likewise.
* fetch_seccomp_fprog.c: Remove.
* seccomp_fprog.h: Likewise.
* Makefile.am (strace_SOURCES): Add bpf_filter.c, bpf_filter.h,
bpf_fprog.h, bpf_seccomp_filter.c, and fetch_bpf_fprog.c.
Remove fetch_seccomp_fprog.c and seccomp_fprog.h.
* seccomp.c: Do not include linux/filter.h and xlat header files.
Do not define SECCOMP_RET_ACTION.
(bpf_filter, decode_bpf_code, decode_bpf_stmt, decode_bpf_jump,
print_bpf_filter, print_seccomp_fprog, print_seccomp_filter): Remove.
* defs.h (print_seccomp_filter): Rename to decode_seccomp_fprog.
(SYS_FUNC(seccomp)): Replace print_seccomp_filter
with decode_seccomp_fprog.
* prctl.c (SYS_FUNC(prctl)): Likewise.
Introduce a separate header file for generic macros shared between
strace and its tests. Start this unification with ARRAY_SIZE macro.
* defs.h: Include "macros.h".
(ARRAY_SIZE): Move ...
* macros.h: ... to new file.
* Makefile.am (strace_SOURCES): Add it.
* tests/tests.h: Include "macros.h".
(ARRAY_SIZE): Remove. All callers updated.
* configure.ac (AC_CHECK_HEADERS): Add linux/genetlink.h.
* defs.h (genl_families_xlat): New prototype.
* socketutils.c [HAVE_LINUX_GENETLINK_H]: Include <linux/genetlink.h>.
[HAVE_LINUX_GENETLINK_H] (genl_send_dump_families,
genl_parse_families_response): New helper functions.
(genl_families_xlat): New function for building the xlat table
for NETLINK_GENERIC decoding.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
xlat tables are usually generated at build time.
printxval is suitable for printing struct nlmsghdr.nlmsg_type for
NETLINK_GENERIC protocol. However, the corresponding xlat table
cannot be defined at build time because the values are registered
by the kernel at run time.
This change introduces dyxlat functions for building xlat tables
dynamically. The primary use case is decoding nlmsg_type but this
interface can be used for other purposes.
* defs.h (struct dyxlat): New opaque data type.
(dyxlat_alloc, dyxlat_free, dyxlat_add_pair): New function declarations.
* dyxlat.c: New file.
* Makefile.am (strace_SOURCES): Add it.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
* defs.h (netlink_decoder_t): New typedef.
(DECL_NETLINK): New macro.
(decode_netlink_sock_diag): New prototype.
* netlink.c (netlink_decoders): New array.
(decode_payload): Use it to invoke netlink family specific decoders.
* netlink_sock_diag.c: New file.
* Makefile.am (strace_SOURCES): Add it.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
Co-authored-by: JingPiao Chen <chenjingpiao@gmail.com>
Add printflags_ex extension over printflags64 that, similar
to printxvals, takes a NULL-terminated sequence of xlat pointers.
* defs.h (printflags_ex): New prototype.
(printflags64): Turn into a thin wrapper around printflags_ex.
* netlink.c (decode_nlmsg_flags): Use printflags_ex.
* util.c (printflags_ex): New function.
(printflags64): Remove.
* xlat/netlink_get_flags.in: Remove entries listed
in xlat/netlink_flags.in file.
* xlat/netlink_new_flags.in: Likewise.
This change removes the trace_syscall function. Now, the code that uses
syscall.c trace functions is expected to check whether it is a syscall
entry or exit (with entering(tcp)/exiting(tcp)) itself, and then make
an appropriate sequence of function calls.
* defs.h: Update comment on TCB_INSYSCALL.
(trace_syscall): Remove prototype.
(syscall_entering_decode, syscall_entering_trace,
syscall_entering_finish, syscall_exiting_decode, syscall_exiting_trace,
syscall_exiting_finish): New prototypes.
* strace.c (trace_syscall): New static replacement for old trace_syscall.
* syscall.c (trace_syscall): Remove.
(trace_syscall_entering): Split into ...
(syscall_entering_decode, syscall_entering_trace,
syscall_entering_finish): ... new functions.
(trace_syscall_exiting): Split into ...
(syscall_exiting_decode, syscall_exiting_trace,
syscall_exiting_finish): ... new functions.
Add a way to get socket information without printing it.
* defs.h (get_sockaddr_by_inode): New prototype.
* socketutils.c (get_sockaddr_by_inode): New function.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Change print_sockaddr_by_inode to be the only function exposed,
hide print_sockaddr_by_inode_cached as a part of implementation.
* defs.h (print_sockaddr_by_inode_cached): Remove prototype.
(print_sockaddr_by_inode): Add struct tcb * and descriptor arguments.
* socketutils.c (print_sockaddr_by_inode_cached): Make static.
(print_sockaddr_by_inode): Rename to print_sockaddr_by_inode_uncached,
make static.
(print_sockaddr_by_inode): New function.
* util.c (printfd): Update to use new print_sockaddr_by_inode.
Negative micro/nanoseconds values are treated as invalid by kernel
anyway, and in one case (timespec_valid in include/linux/time.h)
it is even checked by conversion to unsigned long.
* print_timespec.c (timespec_fmt): Change tv_sec format to %lld and
tv_nsec format to %llu.
(print_timespec_t): Cast tv_sec to long long and process tv_nsec with
zero_extend_signed_to_ull.
(sprint_timespec): Likewise.
* print_timeval.c (timeval_fmt): Change tv_sec format to %lld and
tv_usec format to %llu.
(print_timeval_t): Cast tv_sec to long long and process tv_nsec with
zero_extend_signed_to_ull.
(sprint_timeval, print_timeval32_t, sprint_timeval32): Likewise.
* defs.h (TIMESPEC_TEXT_BUFSIZE): Update.
* tests/adjtimex.c (main): Change tv_sec printing format to %lld, cast
it to long long; change tv_usec printing format to %llu, process it with
zero_extend_signed_to_ull.
* tests/clock_nanosleep.c (main): Change tv_sec printing format to %lld,
cast it to long long; change tv_nsec printing format to %llu, process it
with zero_extend_signed_to_ull.
* tests/clock_xettime.c (main): Likewise.
* tests/futex.c (main): Likewise.
* tests/futimesat.c (print_tv): Likewise.
* tests/getrusage.c (invoke_print): Likewise.
* tests/mq_sendrecv.c (do_send, do_recv, main): Likewise.
* tests/nanosleep.c (main): Likewise.
* tests/pselect6.c (main): Likewise.
* tests/restart_syscall.c (main): Likewise.
* tests/rt_sigtimedwait.c (iterate, main): Likewise.
* tests/sched_rr_get_interval.c (main): Likewise.
* tests/semop.c (main): Likewise.
* tests/timer_xettime.c (main): Likewise.
* tests/timerfd_xettime.c (main): Likewise.
* tests/waitid.c (main): Likewise.
* tests/xetitimer.c (main): Likewise.
* tests/xettimeofday.c (main): Likewise.
* tests/xselect.c (main): Likewise.
* tests/xutimes.c (print_tv): Likewise.
* tests/wait4.c (sprint_rusage): Likewise.
* tests/waitid.c (sprint_rusage): Likewise.
* tests/utimensat.c (print_ts): Likewise.
(main): Add check for higher bits of tv_sec/tv_nsec.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Refactor sprinttime: implement sprinttime_nsec and sprinttime_usec
that handle nanoseconds and microseconds, respectively.
Always print raw values of time data fields, format string
representations of time as comments.
* defs.h (sprinttime): Change argument type from time_t to long long.
(sprinttime_nsec, sprinttime_usec): New prototypes.
* util.c (sprinttime_ex, sprinttime_nsec, sprinttime_usec): New
functions.
(sprinttime): Turn into a thin wrapper around sprinttime_ex.
* stat.h (struct strace_stat): Add has_nsec field.
* fetch_struct_stat.c (HAVE_NSEC): New macro.
(fetch_struct_stat): Initialize has_nsec field with HAVE_NSEC.
* fetch_struct_stat64.c (HAVE_NSEC): New macro.
(fetch_struct_stat64): Initialize has_nsec field with HAVE_NSEC.
* print_struct_stat.c (print_struct_stat) <PRINT_ST_TIME>:
Print raw values of time fields, use sprinttime_nsec to format a string
representation of time, use tprints_comment to print it as a comment.
* statx.c (SYS_FUNC(statx)) <PRINT_FIELD_TIME>: Likewise.
* utime.c (SYS_FUNC(utime)): Print raw values of struct utimbuf.actime
and struct utimbuf.modtime fields, use sprinttime to format a string
representation of time, use tprints_comment to print it as a comment.
* tests/tests.h (print_time_t_nsec): Add int argument.
* tests/print_time.c (print_time_t_ex): New function.
(print_time_t_nsec): Add int argument, turn into a thin wrapper around
print_time_t_ex.
* tests/utime.c (main): Update expected output.
* tests/xstatx.c [!IS_STATX] (HAVE_NSEC): New macro.
[!IS_STATX] (PRINT_ST_TIME), [IS_STATX] (PRINT_FIELD_TIME): Update
expected output.
* NEWS: Mention this timestamps representation improvement.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
This follows the rename of print_timeval_item to print_timeval_utimes.
* defs.h [ALPHA] (print_timeval32_pair): Rename
to print_timeval32_utimes.
* print_timeval.c [ALPHA] (print_timeval32_pair): Likewise.
* utimes.c [ALPHA] (SYS_FUNC(osf_utimes)): Replace print_timeval32_pair
with print_timeval32_utimes.
