Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: LGPL-2.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * trace/beauty/fcntl.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "trace/beauty/beauty.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <uapi/linux/fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) static size_t fcntl__scnprintf_getfd(unsigned long val, char *bf, size_t size, bool show_prefix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	return val ? scnprintf(bf, size, "%s", "0") :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 		     scnprintf(bf, size, "%s%s", show_prefix ? "FD_" : "", "CLOEXEC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) static size_t syscall_arg__scnprintf_fcntl_getfd(char *bf, size_t size, struct syscall_arg *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	return fcntl__scnprintf_getfd(arg->val, bf, size, arg->show_string_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) static size_t fcntl__scnprintf_getlease(unsigned long val, char *bf, size_t size, bool show_prefix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	static const char *fcntl_setlease[] = { "RDLCK", "WRLCK", "UNLCK", };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	static DEFINE_STRARRAY(fcntl_setlease, "F_");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	return strarray__scnprintf(&strarray__fcntl_setlease, bf, size, "%x", show_prefix, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) static size_t syscall_arg__scnprintf_fcntl_getlease(char *bf, size_t size, struct syscall_arg *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	return fcntl__scnprintf_getlease(arg->val, bf, size, arg->show_string_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) size_t syscall_arg__scnprintf_fcntl_cmd(char *bf, size_t size, struct syscall_arg *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	if (arg->val == F_GETFL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_open_flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		goto mask_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	if (arg->val == F_GETFD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getfd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		goto mask_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	if (arg->val == F_DUPFD_CLOEXEC || arg->val == F_DUPFD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	if (arg->val == F_GETOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_pid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		goto mask_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	if (arg->val == F_GETLEASE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		syscall_arg__set_ret_scnprintf(arg, syscall_arg__scnprintf_fcntl_getlease);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		goto mask_arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	 * Some commands ignore the third fcntl argument, "arg", so mask it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	if (arg->val == F_GET_SEALS ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	    arg->val == F_GETSIG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) mask_arg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		arg->mask |= (1 << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	return syscall_arg__scnprintf_strarrays(bf, size, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_arg *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	bool show_prefix = arg->show_string_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	int cmd = syscall_arg__val(arg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	if (cmd == F_DUPFD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		return syscall_arg__scnprintf_fd(bf, size, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	if (cmd == F_SETFD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		return fcntl__scnprintf_getfd(arg->val, bf, size, show_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (cmd == F_SETFL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return open__scnprintf_flags(arg->val, bf, size, show_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	if (cmd == F_SETOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		return syscall_arg__scnprintf_pid(bf, size, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	if (cmd == F_SETLEASE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		return fcntl__scnprintf_getlease(arg->val, bf, size, show_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	 * We still don't grab the contents of pointers on entry or exit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	 * so just print them as hex numbers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	if (cmd == F_SETLK || cmd == F_SETLKW || cmd == F_GETLK ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	    cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	    cmd == F_GETOWN_EX || cmd == F_SETOWN_EX ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	    cmd == F_GET_RW_HINT || cmd == F_SET_RW_HINT ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	    cmd == F_GET_FILE_RW_HINT || cmd == F_SET_FILE_RW_HINT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		return syscall_arg__scnprintf_hex(bf, size, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	return syscall_arg__scnprintf_long(bf, size, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }