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Add an argument to print_time* routines that signalises, whether
the time value is wall clock time or not.
* aio.c (print_io_getevents): Add an argument to print_timespec call.
* defs.h (print_timeval32_t, print_timeval32, print_itimerval32): Add
"bool rtc" argument.
* desc.c (decode_select): Add bool argument to print_tv_ts callback
function argument.
* futex.c (SYS_FUNC(futex)) <case FUTEX_WAIT>: Call print_timespec with
rtc=false, as the timestamp is always relative.
<case FUTEX_LOCK_PI>: Call print_timespec with rtc=true, as the timeout
is always absolute.
<case FUTEX_WAIT_BITSET, case FUTEX_WAIT_REQUEUE_PI>: Call
print_timespec with rtc set to true when op has FUTEX_CLOCK_REALTIME
flag.
* ipc_sem.c (SYS_FUNC(semtimedop)): Call print_timespec with rtc=false,
as timeout is always relative.
* linux/dummy.h (sys_clock_getres, sys_stime): Remove.
* mmsghdr.c (SYS_FUNC(recvmmsg)): Call print_timespec with rtc=false, as
timeout is relative.
* mq.c (SYS_FUNC(mq_timedsend), SYS_FUNC(mq_timedreceive)): Call
print_timespec with rtc=true, as timeout is absolute.
* msghdr.c (print_scm_timestamp, print_scm_timestampns,
print_scm_timestamping): Call print_struct_timeval_data_size,
print_struct_timespec_data_size, print_struct_timespec_array_data_size
with rtc=true as timestamps presumed absolute.
* poll.c (SYS_FUNC(ppoll)): Call print_timespec with rtc=false, as
timeout is relative.
* print_time.c (print_time_t): New function.
(SYS_FUNC(time)): Use print_time_t for printing time.
(SYS_FUNC(stime)): New function.
* print_timespec.c (print_timespec_t, print_struct_timespec_data_size,
print_struct_timespec_array_data_size, print_timespec): Add rtc argument,
handle it.
(print_timespec_t_utime): Call print_timespec_t with rtc=false when
xlat_style is not abbreviated, call print_timespec_t with rtc=true
instead of manual time stamp printing.
(print_itimerspec): Call print_timespec_t with rtc=false.
* print_timeval.c (print_timeval_t, print_struct_timeval_data_size,
print_timeval, print_itimerval, print_timeval32_t, print_timeval32):
Add rtc argument, handle it.
(print_timeval_t_utime, print_timeval32_t_utime): Remove.
(print_struct_timeval): New function.
(print_timeval_utimes): Use print_struct_timeval instead of
print_timeval_t_utime.
* print_timex.c (print_timex): Add rtc argument, handle it.
* printrusage.c (printrusage): Call print_struct_timeval with rtc=false.
* sched.c (sched_rr_get_interval): Call print_timespec with rtc=false.
* signal.c (rt_sigtimedwait): Call print_timespec with rtc=false.
* time.c: Include "xlat/clocknames.h" under XLAT_MACROS_ONLY.
(gettimeofday, settimeofday): Call print_timeval with rtc=true.
(osf_gettimeofday, osf_settimeofday): Call print_timeval32 with rtc=true.
(nanosleep): Call print_timespec with rtc=false.
(getitimer, setitimer): Call print_itimerval with rtc=false.
(osf_getitimer, osf_setitimer): Call print_itimerval32 wirh rtc=false.
(do_adjtimex): Add rtc argument, handle it.
(is_rtcid): New function.
(clock_settime, clock_gettime): Call print_timespec with rtc=true if 0th
argument is a real-time clock (as indicated by is_rtcid).
(SYS_FUNC(clock_getres)): New syscall decoder.
(SYS_FUNC(clock_nanosleep)): Call print_timespec with rtc=true if clock
is realtime (as indicated by is_rtcid) and TIMER_ABSTIME is set in flags.
(SYS_FUNC(clock_adjtime)): Call do_adjtimex with rtc=true if clock is
realtime.
* tests/adjtimex.c: Update expected output.
* tests/clock_nanosleep.c: Likewise.
Added in v4.10-rc1~202^2~340^2~2.
* xlat/ip_cmsg_types.in (SCM_SECURITY): Provide fallback message,
reorder.
(IP_RECVFRAGSIZE): New constant.
* msghdr.c (print_cmsg_int): New function.
(cmsg_ip_printers) <IP_RECVFRAGSIZE>: New printer.
In preparation to passing tcp to all tracee-related syscalls.
* defs.h (read_int_from_file): Add "struct tcb *" as the first argument.
* util.c (read_int_from_file): Likewise.
* msghdr.c (get_optmem_max): Add "struct tcb *tcp" as the first
argument, pass it to read_int_from_file call.
(decode_msg_control): Pass tcp to get_optmem_max.
* msghdr.c (print_scm_creds): Use PRINT_FIELD_U and PRINT_FIELD_UID.
(print_cmsg_ip_recverr): Use PRINT_FIELD_U.
(print_struct_msghdr): Use PRINT_FIELD_U and PRINT_FIELD_FLAGS.
* print_fields.h (PRINT_FIELD_SOCKADDR): New macro.
* msghdr.c (print_cmsg_ip_recverr): Use it instead of print_sockaddr.
* net.c (print_group_req): Likewise.
* sock.c (PRINT_IFREQ_ADDR): Remove.
(print_ifreq, print_ifconf_ifreq): Use PRINT_FIELD_SOCKADDR
instead of PRINT_IFREQ_ADDR.
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.
Add support for printing control messages containing software and/or
hardware timestamps, which are typically enabled by NTP and PTP
implementations.
* print_timeval.c (print_struct_timeval_data_size): New mpers printer.
* print_timespec.c (print_struct_timespec_data_size,
print_struct_timespec_array_data_size): Likewise.
* msghdr.c (print_scm_timestamp, print_scm_timestampns,
print_scm_timestamping): New functions.
(cmsg_socket_printers): Add them.
* NEWS: Mention this change.
* tests/msg_control.c: Include "xlat.h" and "xlat/scmvals.h".
(test_scm_timestamp, test_scm_timestampns, test_scm_timestamping):
New functions.
(test_sol_socket): Use them.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Remove temporary macros created for transition from long
to kernel_ulong_t.
Automatically replace PRI_kr[dux] with PRI_kl[dux] using
$ git grep -l 'PRI_kr[dux]' | xargs sed -ri 's/PRI_kr([dux])/PRI_kl\1/g'
* defs.h (PRI_krd, PRI_kru, PRI_krx): Remove. All users updated.
Remove temporary types created for transition from long
to kernel_ulong_t.
Automatically replace kernel_scno_t and kernel_ureg_t with
kernel_ulong_t using
$ git grep -El 'kernel_(scno|ureg)_t' |
xargs sed -ri 's/kernel_(scno|ureg)_t/kernel_ulong_t/g'
* kernel_types.h (kernel_scno_t, kernel_ureg_t): Remove.
All users updated.
Prepare for the change of kernel_ureg_t and kernel_scno_t from
unsigned long to kernel_ulong_t.
* defs.h (PRI_krd, PRI_kru, PRI_krx): New temporary macros.
All users updated.
As the kernel does not accept control messages longer than the value
of int sysctl_optmem_max kernel variable exported as
/proc/sys/net/core/optmem_max, we do not print them either.
Since unsigned int has enough room to contain any valid control message
size, change all internal cmsghdr size types from size_t
to unsigned int.
* msghdr.c (print_scm_rights, print_scm_creds, print_scm_security,
print_cmsg_ip_pktinfo, print_cmsg_uint, print_cmsg_uint8_t,
print_cmsg_ip_opts, print_cmsg_ip_recverr, print_cmsg_ip_origdstaddr,
cmsg_printer, print_cmsg_type_data): Change data_len argument type
from size_t to unsigned int.
(cmsg_socket_printers): Change min_len type from size_t to unsigned int.
(decode_msg_control): Change the type of in_control_len argument,
cmsg_len, and len variables from size_t to kernel_ureg_t.
Change the type of cmsg_size, control_len, and buf_len variables
from size_t to unsigned int.
* defs.h (dumpiov_in_msghdr): Change data_size argument type
from unsigned long to kernel_ureg_t.
* msghdr.h (print_struct_msghdr): Likewise.
* msghdr.c (print_struct_msghdr): Likewise. Cast msghdr.msg_iovlen
and msghdr.msg_controllen to kernel_ureg_t instead of unsigned long.
(decode_msghdr, dumpiov_in_msghdr): Change data_size argument type
from unsigned long to kernel_ureg_t.
(SYS_FUNC(sendmsg)): Pass -1 instead of -1UL as data_size argument
to decode_msghdr.
* mmsghdr.c (print_struct_mmsghdr): Pass (kernel_ureg_t) -1 instead
of -1UL as data_size argument to print_struct_msghdr.
(dumpiov_in_mmsghdr): Cast msghdr.msg_iovlen to kernel_ureg_t instead
of unsigned long.
* syscall.c (dumpio): Pass -1 instead of -1UL as data_size argument
to dumpiov_in_msghdr
* 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.
IOV_MAX appears to be more portable than UIO_MAXIOV.
* msghdr.c: Include <limits.h>. Remove fallback defintion of UIO_MAXIOV.
(get_optmem_max): Replace UIO_MAXIOV with IOV_MAX.
* tests/msg_control.c: Likewise.
As we've got a proper mechanism that parsers can use for storing private
data between entering and exiting stages, all cases of struct tcb.auxstr
abuse should go.
* btrfs.c (btrfs_ioctl): Use set_tcb_priv_ulong and get_tcb_priv_ulong
instead of abusing tcp->auxstr.
* file_handle.c (SYS_FUNC(name_to_handle_at)): Likewise.
* msghdr.c (SYS_FUNC(recvmsg)): Likewise.
* net.c (decode_sockname, SYS_FUNC(recvfrom)): Likewise.
* v4l2.c (print_v4l2_queryctrl): Likewise.
As the msghdr.msg_namelen argument of recvmsg syscall has the same
read-write semantics as the address length argument of recvfrom syscall,
parser of recvmsg syscall needs a similar fix.
* defs.h (fetch_msghdr_namelen): New prototype.
(decode_msghdr): Add "int *" argument.
* msghdr.c (print_msghdr): Likewise. Treat it as a pointer to struct
msghdr.msg_namelen passed to the kernel. Pass to decode_sockaddr
the size of socket address actually returned by the kernel.
Print both user and kernel address lengths when the value changes.
(decode_msghdr, decode_mmsghdr): Add "int *" argument,
forward it to print_msghdr.
(decode_mmsgvec): Update decode_mmsghdr invocation.
(fetch_msghdr_namelen): New function.
* net.c (SYS_FUNC(sendmsg)): Update decode_msghdr invocation.
(SYS_FUNC(recvmsg)): Use fetch_msghdr_namelen on entering to save
struct msghdr.msg_namelen. On exiting, pass the saved value
to decode_msghdr.
Introduce a general socket netlink parser which prints the header and
a string for the remaining part of the buffer. It doesn't handle all
the netlink flags and types yet because the parser needs more
information, this will be implemented later.
* net.c (decode_sockbuf): New function.
(SYS_FUNC(send), SYS_FUNC(sendto), SYS_FUNC(recv), SYS_FUNC(recvfrom)):
Use it instead of printstr.
* msghdr.c (print_msghdr): Pass IOV_DECODE_NETLINK to tprint_iov_upto()
for netlink sockets.
* netlink.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (decode_netlink, getfdproto): New prototypes.
(iov_decode): Add IOV_DECODER_NETLINK.
* io.c (print_iovec): Use decode_netlink().
* util.c (getfdproto): Remove static keyword.
* xlat/netlink_flags.in: New file.
* xlat/netlink_types.in: New file.
Limit output of struct msghdr.msg_control when
struct msghdr.msg_controllen is greater than the maximum ancillary
buffer size specified in /proc/sys/net/core/optmem_max file.
* configure.ac (AC_CHECK_FUNCS): Add open64.
* defs.h (read_int_from_file): New prototype.
* util.c (read_int_from_file): New function.
* msghdr.c (get_optmem_max): New function based on read_int_from_file.
(decode_msg_control): Use it to check control_len argument.
* tests/msg_control.c (test_big_len): New function.
(main): Use it to test printing of excessively large messages.
* msghdr.c (print_cmsg_ip_opts): Do not print more than max_strlen
bytes of ip options in abbrev mode.
* tests/msg_control.c (print_ip_opts): Use DEFAULT_STRLEN.
(test_sol_ip): Test IP_RETOPTS output in abbrev mode.
* msghdr.c (print_scm_rights): Do not print more than max_strlen
descriptors in abbrev mode.
* tests/msg_control.c (DEFAULT_STRLEN): New macro.
(print_fds): Use it.
(test_scm_rights3): New function.
(main): Use it to test SCM_RIGHTS output in abbrev mode.
* tests/msg_control-v.c: New file.
* tests/msg_control-v.test: New test.
* tests/.gitignore: Add msg_control-v.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add msg_control-v.test.
* msghdr.c (print_cmsg_ip_ttl): Rename to print_cmsg_uint.
(print_cmsg_ip_checksum): Remove.
(print_cmsg_type_data): Replace print_cmsg_ip_ttl
and print_cmsg_ip_checksum with print_cmsg_uint.
* defs.h (msg_flags, socketlayers, decode_msghdr, decode_mmsg):
New prototypes.
* msghdr.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* net.c: Move all msghdr and mmsghdr parsers to msghdr.c.
