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This is needed at least for bpf, btrfs, and sg_io, as 32-bit tracer
cannot figure out whether the kernel is 32-bit or 64-bit,
and its behaviour differs when it handles u64 as a pointer.
* linux/arch_defs_.h [!CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL]
(CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL): New definition, default to 0.
* linux/arm/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Define to 1.
* linux/i386/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/mips/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/powerpc/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/riscv/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/s390/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/sparc/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* linux/tile/arch_defs_.h (CAN_ARCH_BE_COMPAT_ON_64BIT_KERNEL):
Likewise.
* defs.h (print_big_u64_addr): New function.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
It has only single user and implementation of xlat styles for it would
lead to lots of code duplication.
* defs.h (addflags): Remove declaration.
* mem.c (print_mmap_flags): Convert addflags call into printflags64 with
non-zeroeness flags check.
* xlat.c (addflags): Remove.
* defs.h (RVAL_PRINT_ERR_VAL): Remove.
* ldt.c (SYS_FUNC(modify_ldt)): Return 0.
* syscall.c (syscall_exiting_trace): When printing an error,
always print struct tcb.u_rval as if RVAL_PRINT_ERR_VAL was set.
Extend the range of injected return value to the maximum, print warnings
if negative injection value can be clipped in compat personality or can
inadvertently turn into a fault injection.
* defs.h (INJECT_F_ERROR): New macro.
* filter_qualify.c (parse_inject_token): Revert type of intval local
variable back to int, check INJECT_F_ERROR along with INJECT_F_RETVAL,
use strtoull to parse retval argument, print warnings in case of retval
clipping and inadvertent fault injection.
(qualify_inject_common): Set INJECT_F_ERROR instead of INJECT_F_RETVAL.
* syscall.c (tamper_with_syscall_exiting): Check inject_data.flags
to determine whether a fault injection or retval injection has to be
performed.
(syscall_exiting_trace) <case RVAL_DECIMAL>: Explicitly print
tcp->u_rval as int if current_klongsize < sizeof(tcp->u_rval).
* tests/inject-nf.c (main): Update.
* tests/inject-nf.test: Test injection of negative return values.
* tests/qual_inject-syntax.test: Remove retval=-1 check as it is now
allowed, add checks for invalid retval parameters.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
Add one level of indirection to decrease the size of struct inject_data
as hundreds of these structures are created for each process when
injection mechanism is activated.
* retval.h: New file.
* retval.c: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* defs.h (struct inject_data): Replace rval field with rval_idx.
* filter_qualify.c: Include "retval.h".
(parse_inject_token, qualify_inject_common): Initialize
struct inject_data.rval_idx using retval_new.
* syscall.c: Include "retval.h".
(tamper_with_syscall_exiting): Obtain the value that has to be injected
using retval_get.
Do not unblock the delay signal handler unless the delay timer is armed.
* defs.h (is_delay_timer_created): Remove.
(is_delay_timer_armed, delay_timer_expired): New prototypes.
* delay.c (delay_timer_is_armed): New static variable.
(is_delay_timer_created): Add static qualifier.
(is_delay_timer_armed, delay_timer_expired): New functions.
(arm_delay_timer): Set delay_timer_is_armed.
* strace.c (next_event): Use is_delay_timer_armed instead of
is_delay_timer_created to check whether the delay signal handler
has to be unblocked.
(timer_sighandler): Invoke delay_timer_expired.
Add -e inject=SET:delay_enter= and -e inject=SET:delay_exit= options.
* configure.ac (AC_SEARCH_LIBS): Check for timer_create -lrt.
* delay.c: New file.
* Makefile.am (strace_SOURCES): Add it.
(strace_LDADD): Add $(timer_LIBS).
* defs.h (INJECT_F_DELAY_ENTER, INJECT_F_DELAY_EXIT,
TCB_INJECT_DELAY_EXIT, TCB_DELAYED, inject_delay_exit, syscall_delayed):
New macros.
(alloc_delay_data, fill_delay_data, is_delay_timer_created,
arm_delay_timer, delay_tcb): New prototypes.
(struct inject_data): Replace reserved field with delay_idx.
(struct tcb): Add delay_expiration_time field.
* filter_qualify.c (parse_delay_token): New function.
(parse_inject_token): Use it.
(qualify_inject_common): Initialize struct inject_opts.data.delay_idx.
* strace.c: Include <setjmp.h>
(timer_jmp_buf, timer_set): New static variables.
(timer_sighandler, restart_delayed_tcb, restart_delayed_tcbs): New
functions.
(init): Block SIGALRM, set SIGALRM handler.
(dispatch_event): Do not restart delayed syscalls.
(next_event): Unblock SIGALRM during wait4 invocation.
* syscall.c (tamper_with_syscall_entering): Arm delay timer if
INJECT_F_DELAY_ENTER injection flag is set, set TCB_INJECT_DELAY_EXIT
flag if INJECT_F_DELAY_EXIT injection flag is set.
tamper_with_syscall_exiting): Arm delay timer if inject_delay_exit.
(syscall_exiting_trace): Call tamper_with_syscall_exiting in case of
inject_delay_exit.
(syscall_exiting_finish): Clear TCB_INJECT_DELAY_EXIT flag.
* strace.1.in: Document delay injection.
* NEWS: Mention this improvement.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
This is required to implement more precise time measurements.
* Makefile.am (strace_LDADD): Add $(clock_LIBS).
* defs.h (struct tcb): Change the type of stime, dtime, and etime fields
from struct timeval to struct timespec, all users updated.
(syscall_exiting_decode, syscall_exiting_trace, count_syscall): Change
the type of "struct timeval *" argument to "struct timespec *", all
users updated.
(tv_nz, tv_cmp, tv_float, tv_add, tv_sub, tv_div, tv_mul): Rename to
ts_nz, ts_cmp, ts_float, ts_add, ts_sub, ts_div, and ts_mul. Change
the type of all "struct timeval *" arguments to "struct timespec *",
all users updated.
* util.c (tv_nz, tv_cmp, tv_float, tv_add, tv_sub, tv_div, tv_mul):
Rename to ts_nz, ts_cmp, ts_float, ts_add, ts_sub, ts_div, and ts_mul.
Change the type of all "struct timeval *" arguments to "struct timespec *".
* count.c (struct call_counts): Change the type of "time" field
from struct timeval to struct timespec, all users updated.
(overhead): Change type from struct timeval to struct timespec, all
users updated.
(count_syscall): Change the type of "struct timeval *" argument to
"struct timespec *".
* strace.c (printleader): Change the type of struct timeval variables
to struct timespec, call clock_gettime instead of gettimeofday.
(next_event, trace_syscall): Change the type of struct timeval variables
to struct timespec.
* syscall.c (syscall_entering_finish, syscall_exiting_decode): Call
clock_gettime instead of gettimeofday.
The side effect of #include "xlat/nl_netfilter_msg_types.h" is
NFNL_MSG_BATCH_* constants properly defined in that header file.
While netlink.c does not use these constants itself,
netlink_netfilter.c is going to need them soon.
* defs.h (nl_netfilter_msg_types): New xlat prototype.
* netlink.c: Move inclusion of "xlat/nl_netfilter_msg_types.h" ...
* netlink_netfilter.c: ... here.
* defs.h (ethernet_protocols_size): New declaration.
* netlink_packet_diag.c (decode_packet_diag_req): Use
printxval_searchnn to print Ethernet protocols.
* sockaddr.c (ethernet_protocols_size): New constant, item count
in ethernet_protocols array.
(print_sockaddr_data_ll): Use printxval_search instead of
printxval to print Ethernet protocols.
* xlat/ethernet_protocols.in: Sort it by value, add comment
about the fact.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
It is quite unwieldy to have this distinction between sorted and
unsorted arrays when we can just decrement the size in a wrapper.
* defs.h (printxval_search): Decrement array size.
* xlat/fsmagic.in (#unterminated): Remove.
* xlat/hw_breakpoint_type.in (#unterminated): Remove.
* xlat/perf_hw_cache_id.in (#unterminated): Remove.
* xlat/perf_hw_cache_op_id.in (#unterminated): Remove.
* xlat/perf_hw_cache_op_result_id.in (#unterminated): Remove.
* xlat/perf_hw_id.in (#unterminated): Remove.
* xlat/perf_sw_ids.in (#unterminated): Remove.
* xlat/perf_type_id.in (#unterminated): Remove.
* xlat/gen.sh (gen_header): Remove #unterminated support.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
Sometimes, 64-bit value is expected to be interpreted as an address
(in BTRFS ioctl interface, for example).
* defs.h (printaddr64): New declaration.
* util.c (printaddr64): Rename from printaddr, change argument type
to uint64_t.
(printaddr): Turn into a thin wrapper around printaddr64.
(printnum_addr_int, printnum_addr_int64): Use printaddr64 instead of
printaddr. printnum_addr_int64 is not used outside the cases where
kernel_long is less or equal than 64 bit currently, so this change
should be safe.
Quotes are not always used to denote string limits; printfd uses angle
brackets for that, for example. As result, mechanism for supplying
set of additional characters in order to avoid ambiguities regarding
the end of the quoted string is needed.
* defs.h (string_quote): Add escape_chars parameter.
(print_quoted_string_ex): New function prototype.
* util.c (string_quote): Add escape_chars parameter.
(print_quoted_string_ex): Rename from print_quoted_string, add
escape_chars parameter, pass it to string_quote call.
(print_quoted_string): Turn into a thin wrapper around
print_quoted_string_ex.
(printstr_ex): Pass NULL as escape_chars argument of string_quote call.
* socketutils.c (unix_parse_response): Pass NULL as escape_chars
argument of string_quote call.
* tests/print_quoted_string.c (print_octal): New function.
print_quoted_memory_ex): Use it. Add escape_chars parameter.
(print_quoted_memory): Pass NULL as escape_chars argument
of print_quoted_memory_ex call.
* tests/tests.h (print_quoted_string_ex, print_quoted_memory_ex): Add
escape_chars parameter.
* tests/fsync-y.c: Pass NULL as escape_chars argument of
print_quoted_string_ex call.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
* defs.h (struct mmap_cache_t): Add major and minor fields.
* mmap_cache.c (build_mmap_cache): Record device major and minor numbers.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
mmap_cache was enabled indirectly via unwind feature. As now mmap_cache
can be used by other part of strace, a way to enable mmap_cache directly
is needed.
* defs.h (mmap_cache_enable, mmap_cache_is_enabled): New function
prototypes.
* mmap_cache.c (use_mmap_cache): New file local variable.
(mmap_cache_enable, mmap_cache_is_enabled): New functions.
* syscall.c (syscall_exiting_decode): Use mmap_cache_is_enabled()
instead of stack_trace_enabled.
* unwind.c (unwind_init): Invoke mmap_cache_enable.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
To make mmap_cache reusable, records protection bits of mmap entries.
* defs.h (mmap_cache_protection): New enum.
* mmap_cache.c (build_mmpa_cache): Don't ignore entries that are not
executable, just record the protection bits here.
* unwind.c (print_stack_frame): Ignore entries that are not executable.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
print_stack_frame function in unwind.c searches a mmap entry in mmap
cache. The found entry is then used for unwinding. However, a function
searching for a mmap entry may be useful for other purposes than
unwinding.
This change re-factors the function; code for searching an entry is
now defined as a stand-alone function named mmap_cache_search.
* defs.h (mmap_cache_search): New function prototype.
print_stack_frame.
* mmap_cached.c (mmap_cache_search): New function derived from
print_stack_frame.
* unwind.c (print_stack_frame): Use it.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
For making mmap cache code reusable from other areas in strace than
unwind, mmap cache related code and unwind related code should be
separated.
This change moves the most of mmap cache code from unwind.c
to mmap_cache.c, a new file.
* unwind.c: Move mmap_cache implementation ...
* mmap_cache.c: ... to this new file.
* Makefile.am (strace_SOURCES): add mmap_cache.c.
* defs.h (struct tcb): Move mmap_cache, mmap_cache_size, and
mmap_cache_generation fields out of [USE_LIBUNWIND] condition.
(mmap_cache_invalidate, mmap_cache_delete,
mmap_cache_rebuild_if_invalid): New function prototypes.
(struct mmap_cache_t, enum mmap_cache_rebuild_result): Move from
unwind.c.
* syscall.c (syscall_exiting_decode): Replace unwind_cache_invalidate
with mmap_cache_invalidate.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
As it will be used elsewhere.
* basic_filters.c (scno_by_name): New function.
(qualify_syscall_name): Use it.
* defs.h (scno_by_name): New declaration.
* defs.h (struct inject_data): Change type of rval field to
kernel_ulong_t.
* filter_qualify.c (parse_inject_token): Use string_to_kulong instead of
string_to_uint for rval parsing. Warn if retval is clipped in compat
personality.
This makes interface a bit irregular otherwise.
* defs.h (syscall_name): Clarify description.
* syscall.c (syscall_name): Do not call shuffle_scno.
* printsiginfo.c (print_si_info) <case SIGSYS>: Use shuffle_scno.
Because there are never enough print_quoted_string flags.
* defs.h (QUOTE_EMIT_COMMENT): New quoting flag macro constant.
* util.c (string_quote): Emit " /* " in the beginning and " */" in the
end if QUOTE_EMIT_COMMENT is passed.
(print_quoted_string): Increase alloc_size by 7 if QUOTE_EMIT_COMMENT is
passed.
We (apparently) had a long-standing test failure inside strace-ff.test
with the symptom that it misses exit_group call. As it turned out, it
was PTRACE_EVENT_EXEC followed by execve syscall exiting stop. That
behaviour indeed screwed all the syscall state tracking for the tracee.
Let's try to patch it up by calling trace_syscall when we receive
PTRACE_EVENT_EXEC outside syscall.
* defs.h (TCB_RECOVERING): New tcb flag.
* strace.c (dispatch_event) <case TE_STOP_BEFORE_EXECVE>: Invoke
trace_syscall with TCB_RECOVERING flag being set for the current_tcp
if the tracee is not on exiting syscall.
* syscall.c (get_scno): Set QUAL_RAW if we are recovering.
(tamper_with_syscall_entering): Do not perform actual tampering during
recovery as it's already too late.
* NEWS: Mention it.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
As there are more than one old style syscall that take their arguments
via array, generalize fetch_old_mmap_args into a function that could
fetch variable number of arguments.
* mem.c (fetch_old_mmap_args): Transform into ...
* fetch_indirect_syscall_args.c: ... fetch_indirect_syscall_args
in this new file.
* Makefile.am (libstrace_a_SOURCES): Add it.
* defs.h [HAVE_ARCH_OLD_MMAP] (fetch_old_mmap_args): Remove.
(fetch_indirect_syscall_args): New prototype.
* pathtrace.c (pathtrace_match_set) [HAVE_ARCH_OLD_MMAP]: Use
fetch_indirect_syscall_args instead of fetch_old_mmap_args.
* linux/arch_defs_.h [!HAVE_ARCH_OLD_MMAP] (HAVE_ARCH_OLD_MMAP): New
macro.
[!HAVE_ARCH_OLD_MMAP_PGOFF] (HAVE_ARCH_OLD_MMAP_PGOFF): Likewise.
* defs.h: Use #if instead of #ifdef to check HAVE_ARCH_OLD_MMAP.
* mem.c: Use #if instead of #ifdef to check HAVE_ARCH_OLD_MMAP
and HAVE_ARCH_OLD_MMAP_PGOFF
* pathtrace.c: Likewise.
As umovestr now returns something useful, let's propagate it further.
* defs.h (printstr_ex, printpathn, printpath): Change return type from
void to int.
(printstrn, printstr): Change return type from void to int, return
printstr_ex result.
* util.c (printpathn): Return -1 on NULL addr, nul_seen (exit code of
umovestr) on success.
(printpath): Return printpathn result.
(printstr_ex): Return -1 on NULL addr, umoven/umovestr result otherwise.
By very popular demand.
While we are here, let's refactor the condition for old_mmap_pgoff into
an arch-specific one, as it is used more than in one place.
* NEWS: Mention this.
* strace.1.in (.SH "MULTIPLE PERSONALITY SUPPORT"): Likewise.
* configure.ac (case "$host_cpu" in) <s390x>: Set arch_m32 to s390, set
cc_flags_m32 to -m31.
(st_MPERS([m32])): Add s390x.
* defs.h [S390X]: Define NEED_UID16_PARSERS.
* linux/s390/arch_sigreturn.c [!S390_FRAME_PTR] (S390_FRAME_PTR): New
macro, define to s390_frame_ptr.
[!SIGNAL_FRAMESIZE] (SIGNAL_FRAMESIZE): New macro, define to
__SIGNAL_FRAMESIZE.
[!PTR_TYPE] (PTR_TYPE): New macro, define to unsigned long.
(arch_sigreturn): Use S390_FRAME_PTR, SIGNAL_FRAMESIZE, and PTR_TYPE
instead of s390_frame_ptr, __SIGNAL_FRAMESIZE, and pointer-sized type,
respectively.
* linux/s390/get_error.c [!ARCH_REGSET] (ARCH_REGSET): New macro, define
* to s390_regset.
(get_error): Use it instead of s390_regset.
* linux/s390/get_scno.c (arch_get_scno): Likewise.
* linux/s390/get_syscall_args.c (get_syscall_args): Likewise.
* linux/s390/set_error.c (arch_set_error, arch_set_success): Likewise.
* linux/s390/set_scno.c (arch_set_scno): Likewise.
* linux/s390x/arch_regs.c (psw_compat_t, s390_compat_regs,
s390x_regs_union, s390_frame_ptr, s390x_frame_ptr, s390x_io): New
variables.
(s390_regset, s390x_regset, ARCH_REGS_FOR_GETREGSET,
ARCH_IOVEC_FOR_GETREGSET, ARCH_PC_REG, ARCH_PERSONALITY_0_IOV_SIZE,
ARCH_PERSONALITY_1_IOV_SIZE): New macros.
* linux/s390x/arch_regs.h (s390_frame_ptr, s390x_frame_ptr): New
prototypes.
* linux/s390x/arch_rt_sigframe.c: Conditionalize on tcp->currpers.
* linux/s390x/arch_sigreturn.c: Likewise.
* linux/s390x/get_error.c: Likewise.
* linux/s390x/get_scno.c: Likewise.
* linux/s390x/get_syscall_args.c: Likewise.
* linux/s390x/set_error.c: Likewise.
* linux/s390x/set_scno.c: Likewise.
* linux/s390x/errnoent1.h: New file.
* linux/s390x/ioctls_arch1.h: Likewise.
* linux/s390x/ioctls_inc1.h: Likewise.
* linux/s390x/signalent1.h: Likewise.
* linux/s390x/syscallent1.h: Likewise.
* Makefile.am (EXTRA_DIST): Add new files added to linux/s390x.
* supported_personalities.h [S390X] (SUPPORTED_PERSONALITIES): Define
to 2.
* tests/strace-V.test: Add s390 to the list of architectures that have
m32 personality.
* linux/s390/arch_defs.h (HAVE_ARCH_OLD_MMAP_PGOFF): New macro.
* linux/s390x/arch_defs.h: Likewise.
* mem.c: Replace #ifdef S390 with #ifdef HAVE_ARCH_OLD_MMAP_PGOFF.
* pathtrace.c: Likewise.
Move common old_mmap/old_mmap_pgoff argument fetching code into a
separate function.
As it is, it also fixes the case of non-verbose printing of old_mmap
arguments (see the new test in the next commit). Also, it is a
preparation for the fix of path tracing for these syscalls.
* defs.h [HAVE_ARCH_OLD_MMAP] (fetch_old_mmap_args): New prototype.
* mem.c [HAVE_ARCH_OLD_MMAP] (fetch_old_mmap_args): New function.
[HAVE_ARCH_OLD_MMAP] (old_mmap, old_mmap_pgoff): Use it.
Fixes: 3db07f11 "Fix old_mmap output when mmap arguments are unfetchable"
Suggested-by: Dmitry V. Levin <ldv@altlinux.org>
We can never be cautious enough.
* defs.h (set_personality): Change argument type to unsigned int.
* syscall.c (set_personality): Change argument type to unsigned int,
check whether requested personality is sane, die otherwise.
* defs.h (HAVE_PERSONALITY_1_MPERS, HAVE_PERSONALITY_2_MPERS): New
macros.
* syscall.c (update_personality): Add need_mpers_warning array
initialized with mpers support data. Use it for printing the mpers
unavailability warning once per personality.
Co-authored-by: Dmitry V. Levin <ldv@altlinux.org>
Kernel reads only entry_number field in the beginning of the
get_thread_area syscall handler. Let's replicate this behaviour.
* defs.h (enum user_desc_print_filter): New enumeration.
(print_user_desc): Add an argument for signalling which part of the
structure should be printed.
* clone.c (print_tls_arg): Update print_user_desc call.
* ldt.c (print_user_desc): Add filter argument. Print entry_number on
entering and the rest on exiting. Store entering value of the
entry_number field in order to print the updated value in the impossible
case of changed entry_number value.
(SYS_FUNC(modify_ldt), SYS_FUNC(set_thread_area)): Update
print_user_desc call.
(SYS_FUNC(get_thread_area)): Call print_user_desc with
USER_DESC_ENTERING format argument on entering and with
USER_DESC_EXITING on exiting.
Some weird syscalls (like modify_ldt) return value that doesn't indicate
an error (less than -4096), but it is, in fact, erroneous (because they
decide to clip the return value to 32-bit, for example).
Add a flag to print decoded error code along with syscall return value.
* defs.h (RVAL_PRINT_ERR_VAL): New rval flag.
* syscall.c (syscall_exiting_trace): Handle it.
Since they call tracee-specific socket/sendmsg/recvmsg, we'd like to
pass tcp there.
* defs.h (genl_families_xlat): Add tcp argument.
* netlink.c (decode_nlmsg_type_default, decode_nlmsg_type_generic,
decode_nlmsg_type_netfilter, typedef nlmsg_types_decoder_t): Likewise.
(decode_nlmsg_type): Add tcp argument. Pass tcp to decoder call.
(print_nlmsghdr): Pass tcp to the decode_nlmsg_type call.
* socketutils.c (send_query, receive_responses): Add tcp argument.
(inet_send_query, unix_send_query, netlink_send_query, ): Add tcp argument.
Pass tcp to the send_query call.
(unix_get): Add tcp argument. Pass tcp to the unix_send_query and
receive_responses calls.
(inet_get): Add tcp argument. Pass tcp to the inet_send_query and
receive_responses calls.
(tcp_v4_get, udp_v4_get, tcp_v6_get, udp_v6_get): Add tcp argument. Pass
tcp to the inet_get call.
(netlink_get): Add tcp argument. Pass tcp to the netlink_send_query and
receive_responses calls.
(protocols): Add tcp argument to the get field.
(get_sockaddr_by_inode_uncached): Add tcp argument. Pass tcp to
the protocols[].get calls.
(print_sockaddr_by_inode_uncached): Add tcp argument. Pass tcp to
the get_sockaddr_by_inode_uncached call.
(get_sockaddr_by_inode): Pass tcp to the get_sockaddr_by_inode_uncached
call.
(print_sockaddr_by_inode): Pass tcp to the
print_sockaddr_by_inode_uncached call.
(genl_send_dump_families): Add tcp argument. Pass tcp to the send_query
call.
(genl_families_xlat): Add tcp argument. Pass tcp to the
genl_send_dump_families and receive_responses calls.