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strace/print_fields.h
Eugene Syromyatnikov e6e005f70c Decode UID/GID in -y mode 
* defs.h (RVAL_UID, RVAL_GID): New macro constants.
(printgid): New function declaration.
* ipc_msgctl.c (print_msqid_ds, print_msqid_ds): Use printgid for
printing GID.
* ipc_shmctl.c (print_shmid_ds, print_shmid_ds): Likewise.
* keyctl.c (keyctl_chown_key): Likewise.
* nlattr.c (decode_nla_gid): Likewise.
* linux/dummy.h (sys_getgid, sys_getgid16, sys_getresgid,
sys_getresgid16, sys_setfsgid, sys_setfsgid16, sys_setgid, sys_setgid16,
sys_setregid, sys_setregid16, sys_setresgid, sys_setresgid16): Remove
macros.
(sys_getegid): Define to sys_getgid instead of sys_getuid.
(sys_getegid16): Define to sys_getgid16 instead of sys_geteuid16.
* linux/syscall.h (getresgid16, getgid16, setfsgid16, setresgid16,
setregid16, setgid16): New external SYS_FUNC declarations.
* msghdr.c (print_scm_creds); Use PRINT_FIELD_GID for printing GID.
* net.c (print_get_ucred): Likewise.
* netlink_inet_diag.c (decode_inet_diag_msg): Likewise.
* netlink_smc_diag.c (decode_smc_diag_msg): Likewise.
* print_fields.h (PRINT_FIELD_UID); Use printuid for printing UID.
(PRINT_FIELD_GID): New macro.
* print_struct_stat.c (print_struct_stat): Use printuid for printing
UID, printgid for printing GID.
* printsiginfo.c (printsigsource): Use printuid for printing UID.
* resource.c (print_priority_who): New function.
(SYS_FUNC(getpriority), SYS_FUNC(setpriority)): Use print_priority_who
for printing the second argument.
* statx.c (SYS_FUNC(statx)): Use PRINT_FIELD_UID for printing UID,
PRINT_FIELD_GID for printing GID.
* syscall.c (syscall_exiting_trace): Handle RVAL_UID and RVAL_GID.
* tests/overflowuid.c: Include stdio.h.
(printuid): New function.
* tests/setfsugid.c (printugid): Rename from printuid, update call
sites.
* tests/setgroups.c: Likewise.
* tests/setugid.c: Likewise.
* tests/tests.h (printuid): New declaration.
* uid.c (printgid, sys_getresgid, sys_getgid, sys_setfsgid,
sys_setresgid, sys_setregid, sys_setgid): Add SIZEIFY wrappers.
(gid_t, gid_t_, gid_t__): Define similarly to uid_t, uid_t_, uid_t__.
Include grp.h, pwd.h, sys/types.h.
(enum id_type): New enumeration.
(SYS_FUNC(getuid), SYS_FUNC(setfsuid), ): Return RVAL_UID flag.
(SYS_FUNC(getgid), SYS_FUNC(setfsgid), SYS_FUNC(setgid),
SYS_FUNC(getresgid), SYS_FUNC(setregid), SYS_FUNC(setresgid)): New
functions.
(get_print_id): Rename from get_print_uid, add idt argument, call
printuid or printgid depending on it. Update call sites.
(SYS_FUNC(chown), SYS_FUNC(fchown), print_gid): Use printgid
for printing GID.
(ID_CACHE_SIZE): New macro constant.
(print_id): New function.
(printuid): Implement using print_id.
(printgid): New function.
* xlat/priorities.in: Provide fallback values.
2018-11-21 14:38:13 +01:00

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/*
* Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2017-2018 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef STRACE_PRINT_FIELDS_H
#define STRACE_PRINT_FIELDS_H
/*
* The printf-like function to use in header files
* shared between strace and its tests.
*/
#ifndef STRACE_PRINTF
# define STRACE_PRINTF tprintf
#endif
#define PRINT_FIELD_D(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=%lld", (prefix_), #field_, \
sign_extend_unsigned_to_ll((where_).field_))
#define PRINT_FIELD_U(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=%llu", (prefix_), #field_, \
zero_extend_signed_to_ull((where_).field_))
#define PRINT_FIELD_U_CAST(prefix_, where_, field_, type_) \
STRACE_PRINTF("%s%s=%llu", (prefix_), #field_, \
zero_extend_signed_to_ull((type_) (where_).field_))
#define PRINT_FIELD_X(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=%#llx", (prefix_), #field_, \
zero_extend_signed_to_ull((where_).field_))
#define PRINT_FIELD_ADDR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printaddr((where_).field_); \
} while (0)
#define PRINT_FIELD_ADDR64(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printaddr64((where_).field_); \
} while (0)
#define PRINT_FIELD_0X(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=%#0*llx", (prefix_), #field_, \
(int) sizeof((where_).field_) * 2, \
zero_extend_signed_to_ull((where_).field_))
#define PRINT_FIELD_COOKIE(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=[%llu, %llu]", (prefix_), #field_, \
zero_extend_signed_to_ull((where_).field_[0]), \
zero_extend_signed_to_ull((where_).field_[1]))
#define PRINT_FIELD_FLAGS(prefix_, where_, field_, xlat_, dflt_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printflags64((xlat_), \
zero_extend_signed_to_ull((where_).field_),\
(dflt_)); \
} while (0)
#define PRINT_FIELD_XVAL(prefix_, where_, field_, xlat_, dflt_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printxval64((xlat_), \
zero_extend_signed_to_ull((where_).field_), \
(dflt_)); \
} while (0)
#define PRINT_FIELD_XVAL_U(prefix_, where_, field_, xlat_, dflt_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printxvals_ex(zero_extend_signed_to_ull((where_).field_), \
(dflt_), XLAT_STYLE_FMT_U, \
(xlat_), NULL); \
} while (0)
#define PRINT_FIELD_ERR(prefix_, where_, field_, neg_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_err((where_).field_, (neg_)); \
} while (0)
/*
* Generic "ID" printing. ID is considered unsigned except for the special value
* of -1.
*/
#define PRINT_FIELD_ID(prefix_, where_, field_) \
do { \
if (sign_extend_unsigned_to_ll((where_).field_) == -1LL) \
STRACE_PRINTF("%s%s=-1", (prefix_), #field_); \
else \
STRACE_PRINTF("%s%s=%llu", (prefix_), #field_, \
zero_extend_signed_to_ull((where_).field_)); \
} while (0)
#define PRINT_FIELD_UID(prefix_, where_, field_) \
printuid(prefix_ #field_ "=", (where_).field_)
#define PRINT_FIELD_GID(prefix_, where_, field_) \
printgid(prefix_ #field_ "=", (where_).field_)
#define PRINT_FIELD_U64(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
if (zero_extend_signed_to_ull((where_).field_) == UINT64_MAX) \
print_xlat_u(UINT64_MAX); \
else \
STRACE_PRINTF("%llu", \
zero_extend_signed_to_ull((where_).field_)); \
} while (0)
#define PRINT_FIELD_STRING(prefix_, where_, field_, len_, style_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_quoted_string((const char *)(where_).field_, \
(len_), (style_)); \
} while (0)
#define PRINT_FIELD_CSTRING(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_quoted_cstring((const char *) (where_).field_, \
sizeof((where_).field_) + \
MUST_BE_ARRAY((where_).field_)); \
} while (0)
#define PRINT_FIELD_CSTRING_SZ(prefix_, where_, field_, size_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_quoted_cstring((const char *) (where_).field_, \
(size_)); \
} while (0)
#define PRINT_FIELD_HEX_ARRAY(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_quoted_string((const char *)(where_).field_, \
sizeof((where_).field_) + \
MUST_BE_ARRAY((where_).field_), \
QUOTE_FORCE_HEX); \
} while (0)
#define PRINT_FIELD_INET_ADDR(prefix_, where_, field_, af_) \
do { \
STRACE_PRINTF(prefix_); \
print_inet_addr((af_), &(where_).field_, \
sizeof((where_).field_), #field_); \
} while (0)
#define PRINT_FIELD_INET4_ADDR(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=inet_addr(\"%s\")", (prefix_), #field_, \
inet_ntoa((where_).field_))
#define PRINT_FIELD_INET6_ADDR(prefix_, where_, field_) \
PRINT_FIELD_INET_ADDR((prefix_), (where_), field_, AF_INET6)
#define PRINT_FIELD_AX25_ADDR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_ax25_addr(&(where_).field_); \
} while (0)
#define PRINT_FIELD_X25_ADDR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_x25_addr(&(where_).field_); \
} while (0)
#define PRINT_FIELD_ROSE_ADDR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_rose_addr(&(where_).field_); \
} while (0)
#define PRINT_FIELD_NET_PORT(prefix_, where_, field_) \
STRACE_PRINTF("%s%s=htons(%u)", (prefix_), #field_, \
ntohs((where_).field_))
#define PRINT_FIELD_IFINDEX(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_ifindex((where_).field_); \
} while (0)
#define PRINT_FIELD_SOCKADDR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_sockaddr(&(where_).field_, \
sizeof((where_).field_)); \
} while (0)
#define PRINT_FIELD_DEV(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_dev_t((where_).field_); \
} while (0)
#define PRINT_FIELD_PTR(prefix_, where_, field_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printaddr((mpers_ptr_t) (where_).field_); \
} while (0)
#define PRINT_FIELD_FD(prefix_, where_, field_, tcp_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printfd((tcp_), (where_).field_); \
} while (0)
#define PRINT_FIELD_STRN(prefix_, where_, field_, len_, tcp_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printstrn((tcp_), (where_).field_, (len_)); \
} while (0)
#define PRINT_FIELD_STR(prefix_, where_, field_, tcp_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printstr((tcp_), (where_).field_); \
} while (0)
#define PRINT_FIELD_PATH(prefix_, where_, field_, tcp_) \
do { \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
printpath((tcp_), (where_).field_); \
} while (0)
#define PRINT_FIELD_MAC(prefix_, where_, field_) \
PRINT_FIELD_MAC_SZ((prefix_), (where_), field_, \
ARRAY_SIZE((where_).field_))
#define PRINT_FIELD_MAC_SZ(prefix_, where_, field_, size_) \
do { \
static_assert(sizeof(((where_).field_)[0]) == 1, \
"MAC address is not a byte array"); \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_mac_addr("", (const uint8_t *) ((where_).field_), \
(size_)); \
} while (0)
#define PRINT_FIELD_HWADDR_SZ(prefix_, where_, field_, size_, hwtype_) \
do { \
static_assert(sizeof(((where_).field_)[0]) == 1, \
"hwaddress is not a byte array"); \
STRACE_PRINTF("%s%s=", (prefix_), #field_); \
print_hwaddr("", (const uint8_t *) ((where_).field_), \
(size_), (hwtype_)); \
} while (0)
#endif /* !STRACE_PRINT_FIELDS_H */
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