mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
101 lines
3.1 KiB
101 lines
3.1 KiB
// SPDX-License-Identifier: LGPL-2.1 |
|
/* |
|
* trace/beauty/fcntl.c |
|
* |
|
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <[email protected]> |
|
*/ |
|
|
|
#include "trace/beauty/beauty.h" |
|
#include <linux/kernel.h> |
|
#include <uapi/linux/fcntl.h> |
|
|
|
static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size, bool show_prefix) |
|
{ |
|
return val ? scnprintf(bf, size, "%s", "0") : |
|
scnprintf(bf, size, "%s%s", show_prefix ? "FD_" : "", "CLOEXEC"); |
|
} |
|
|
|
static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct syscall_arg *arg) |
|
{ |
|
return fcntl__scnprintf_getfd(arg->val, bf, size, arg->show_string_prefix); |
|
} |
|
|
|
static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size, bool show_prefix) |
|
{ |
|
static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", }; |
|
static DEFINE_STRARRAY(fcntl_setlease, "F_"); |
|
|
|
return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", show_prefix, val); |
|
} |
|
|
|
static size_t syscall_arg__scnprintf_fcntl_getlease(char *bf, size_t size, struct syscall_arg *arg) |
|
{ |
|
return fcntl__scnprintf_getlease(arg->val, bf, size, arg->show_string_prefix); |
|
} |
|
|
|
size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg) |
|
{ |
|
if (arg->val == F_GETFL) { |
|
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags); |
|
goto mask_arg; |
|
} |
|
if (arg->val == F_GETFD) { |
|
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd); |
|
goto mask_arg; |
|
} |
|
if (arg->val == F_DUPFD_CLOEXEC || arg->val == F_DUPFD) { |
|
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd); |
|
goto out; |
|
} |
|
if (arg->val == F_GETOWN) { |
|
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_pid); |
|
goto mask_arg; |
|
} |
|
if (arg->val == F_GETLEASE) { |
|
syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getlease); |
|
goto mask_arg; |
|
} |
|
/* |
|
* Some commands ignore the third fcntl argument, "arg", so mask it |
|
*/ |
|
if (arg->val == F_GET_SEALS || |
|
arg->val == F_GETSIG) { |
|
mask_arg: |
|
arg->mask |= (1 << 2); |
|
} |
|
out: |
|
return syscall_arg__scnprintf_strarrays(bf, size, arg); |
|
} |
|
|
|
size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg) |
|
{ |
|
bool show_prefix = arg->show_string_prefix; |
|
int cmd = syscall_arg__val(arg, 1); |
|
|
|
if (cmd == F_DUPFD) |
|
return syscall_arg__scnprintf_fd(bf, size, arg); |
|
|
|
if (cmd == F_SETFD) |
|
return fcntl__scnprintf_getfd(arg->val, bf, size, show_prefix); |
|
|
|
if (cmd == F_SETFL) |
|
return open__scnprintf_flags(arg->val, bf, size, show_prefix); |
|
|
|
if (cmd == F_SETOWN) |
|
return syscall_arg__scnprintf_pid(bf, size, arg); |
|
|
|
if (cmd == F_SETLEASE) |
|
return fcntl__scnprintf_getlease(arg->val, bf, size, show_prefix); |
|
/* |
|
* We still don't grab the contents of pointers on entry or exit, |
|
* so just print them as hex numbers |
|
*/ |
|
if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK || |
|
cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK || |
|
cmd == F_GETOWN_EX || cmd == F_SETOWN_EX || |
|
cmd == F_GET_RW_HINT || cmd == F_SET_RW_HINT || |
|
cmd == F_GET_FILE_RW_HINT || cmd == F_SET_FILE_RW_HINT) |
|
return syscall_arg__scnprintf_hex(bf, size, arg); |
|
|
|
return syscall_arg__scnprintf_long(bf, size, arg); |
|
}
|
|
|