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Avoid duplicate definitions of xlat structures in files
compiled in mpers mode.
Each xlat file defines the corresponding xlat struct with
either global or local visibility using the following rules:
- if xlat struct declaration is available in defs.h,
a global definition is provided in regular mode,
and nothing is provided in mpers mode;
- otherwise, if xlat file is included by a mpers source file,
a global definition is provided in regular mode
(unless no mpers mode is supported on this architecture,
in that case, a local definition is provided instead),
and a declaration is provided in mpers mode;
- otherwise, a local definition is provided in regular mode,
and an error message is printed in mpers mode.
Fallback definitions of constants provided by xlat files
remain available in all modes.
* bootstrap: Invoke generate_mpers_am.sh before xlat/gen.sh.
* defs.h (adjtimex_modes, adjtimex_status, sigev_value): Remove.
* generate_mpers_am.sh: Generate mpers_xlat.h.
* Makefile.am (EXTRA_DIST): Add mpers_xlat.h.
* print_sigevent.c: Include "xlat/sigev_value.h" unconditionally.
* print_timex.c: Include "xlat/adjtimex_modes.h" and
"xlat/adjtimex_status.h" unconditionally.
* xlat/gen.sh (cond_xlat): Move printing of fallback definitions ...
(cond_def): ... here.
(gen_header): Check also mpers_xlat.h for global declarations
of xlat structures.
Process input file twice, first time print directives
only, second time print everything.
Wrap struct xlat into #ifdef IN_MPERS ... #else ... #endif.
* xlat/getrandom_flags.in: Cleanup.
* defs.h (dirent_types): New xlat prototype.
* dirent.c: Stop including "xlat/direnttypes.h".
(kernel_dirent): New typedef. Mpersify it.
(print_old_dirent): Use it instead of old_dirent_t.
(SYS_FUNC(getdents)): Use it instead of struct kernel_dirent.
Rename direnttypes to dirent_types.
(SYS_FUNC(getdents64)): Move ...
* dirent64.c: ... here. Rename direnttypes to dirent_types.
Include "xlat/dirent_types.h".
* Makefile.am (strace_SOURCES): Add dirent64.c.
* xlat/direnttypes.in: Rename to xlat/dirent_types.in.
Currently the code assumes the set of valid options between getsockopt
and setsockopt are exactly the same and thus maintains one list. The
kernel unfortunately does not do this -- it allows for different opts
between the get and set functions. See the {g,s}et_opt{min,max} fields
in the various netfilter subcores.
To support this, extend the printxval function to take multiple sets of
xlats as varargs. Then we add the new get/set lists, and pass them down
in the net code when decoding things.
A simple example is iptables; before:
getsockopt(4, SOL_IP, 0x40 /* IP_??? */, ...) = 0
getsockopt(4, SOL_IP, 0x41 /* IP_??? */, ...) = 0
after:
getsockopt(4, SOL_IP, IPT_SO_GET_INFO, ...) = 0
getsockopt(4, SOL_IP, IPT_SO_GET_ENTRIES, ...) = 0
If these were setsockopt calls, then 0x40 & 0x41 would be
IPT_SO_SET_REPLACE & IPT_SO_SET_ADD_COUNTERS.
* configure.ac: Check for netfilter headers.
* defs.h (printxvals): New prototype.
(printxval): Change to a define.
* net.c: Include netfilter headers and new sockopts headers.
(print_sockopt_fd_level_name): Add a is_getsockopt argument. Change SOL_IP
and SOL_IPV6 decoding to use printxvals, and use is_getsockopt to pass more
xlats down.
(getsockopt): Call print_sockopt_fd_level_name with is_getsockopt as true.
(setsockopt): Call print_sockopt_fd_level_name with is_getsockopt as false.
* util.c (printxval): Rename to ...
(printxvals): ... this. Rewrite to be varargs based.
* xlat/getsockipoptions.in: New xlat list.
* xlat/getsockipv6options.in, xlat/setsockipoptions.in,
xlat/setsockipv6options.in: Likewise.
When receiving SIGSYS, the si_syscall & si_arch fields are set to known
values, so make sure we decode their values into the symbol settings.
This makes stracing seccomp failures much easier.
* defs.h (syscall_name): New prototype.
* printsiginfo.c: Include linux/audit.h and xlat/audit_arch.h.
(print_si_info): Decode si_syscall & si_arch for SIGSYS.
* syscall.c (undefined_scno_name): Delete.
(syscall_name): New function.
(trace_syscall_entering): Change undefined_scno_name to syscall_name.
(trace_syscall_exiting): Likewise.
* xlat/audit_arch.in: New file.
* ipc.c: Move MSG_STAT and MSG_INFO definitions to xlat/msgctl_flags.in.
Move SHM_STAT and SHM_INFO definitions to xlat/shmctl_flags.in.
Move SEM_STAT and SEM_INFO definitions to xlat/semctl_flags.in.
Decode as much data on entering syscall as possible.
* xlat/mtd_file_mode_options.in: New file.
* mtd.c: Include <linux/ioctl.h> instead of <sys/ioctl.h>.
Include "xlat/mtd_file_mode_options.h".
Update for RVAL_DECODED.
(mtd_ioctl, ubi_ioctl): Use printnum_int and umove_or_printaddr.
