1 /*
2 * Copyright (c) 2002-2005 Roland McGrath <roland@redhat.com>
3 * Copyright (c) 2004 Ulrich Drepper <drepper@redhat.com>
4 * Copyright (c) 2005-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "defs.h"
31
32 #ifdef HAVE_SYS_XATTR_H
33 # include <sys/xattr.h>
34 #endif
35
36 #include "xlat/xattrflags.h"
37
38 #ifndef XATTR_SIZE_MAX
39 # define XATTR_SIZE_MAX 65536
40 #endif
41
42 static void
print_xattr_val(struct tcb * const tcp,const kernel_ulong_t addr,const kernel_ulong_t insize,const kernel_ulong_t size)43 print_xattr_val(struct tcb *const tcp,
44 const kernel_ulong_t addr,
45 const kernel_ulong_t insize,
46 const kernel_ulong_t size)
47 {
48 tprints(", ");
49
50 if (size > XATTR_SIZE_MAX)
51 printaddr(addr);
52 else
53 printstr_ex(tcp, addr, size, QUOTE_OMIT_TRAILING_0);
54 tprintf(", %" PRI_klu, insize);
55 }
56
SYS_FUNC(setxattr)57 SYS_FUNC(setxattr)
58 {
59 printpath(tcp, tcp->u_arg[0]);
60 tprints(", ");
61 printstr(tcp, tcp->u_arg[1]);
62 print_xattr_val(tcp, tcp->u_arg[2], tcp->u_arg[3], tcp->u_arg[3]);
63 tprints(", ");
64 printflags(xattrflags, tcp->u_arg[4], "XATTR_???");
65 return RVAL_DECODED;
66 }
67
SYS_FUNC(fsetxattr)68 SYS_FUNC(fsetxattr)
69 {
70 printfd(tcp, tcp->u_arg[0]);
71 tprints(", ");
72 printstr(tcp, tcp->u_arg[1]);
73 print_xattr_val(tcp, tcp->u_arg[2], tcp->u_arg[3], tcp->u_arg[3]);
74 tprints(", ");
75 printflags(xattrflags, tcp->u_arg[4], "XATTR_???");
76 return RVAL_DECODED;
77 }
78
SYS_FUNC(getxattr)79 SYS_FUNC(getxattr)
80 {
81 if (entering(tcp)) {
82 printpath(tcp, tcp->u_arg[0]);
83 tprints(", ");
84 printstr(tcp, tcp->u_arg[1]);
85 } else {
86 print_xattr_val(tcp, tcp->u_arg[2], tcp->u_arg[3], tcp->u_rval);
87 }
88 return 0;
89 }
90
SYS_FUNC(fgetxattr)91 SYS_FUNC(fgetxattr)
92 {
93 if (entering(tcp)) {
94 printfd(tcp, tcp->u_arg[0]);
95 tprints(", ");
96 printstr(tcp, tcp->u_arg[1]);
97 } else {
98 print_xattr_val(tcp, tcp->u_arg[2], tcp->u_arg[3], tcp->u_rval);
99 }
100 return 0;
101 }
102
103 static void
print_xattr_list(struct tcb * const tcp,const kernel_ulong_t addr,const kernel_ulong_t size)104 print_xattr_list(struct tcb *const tcp, const kernel_ulong_t addr,
105 const kernel_ulong_t size)
106 {
107 if (!size || syserror(tcp)) {
108 printaddr(addr);
109 } else {
110 printstrn(tcp, addr, tcp->u_rval);
111 }
112 tprintf(", %" PRI_klu, size);
113 }
114
SYS_FUNC(listxattr)115 SYS_FUNC(listxattr)
116 {
117 if (entering(tcp)) {
118 printpath(tcp, tcp->u_arg[0]);
119 tprints(", ");
120 } else {
121 print_xattr_list(tcp, tcp->u_arg[1], tcp->u_arg[2]);
122 }
123 return 0;
124 }
125
SYS_FUNC(flistxattr)126 SYS_FUNC(flistxattr)
127 {
128 if (entering(tcp)) {
129 printfd(tcp, tcp->u_arg[0]);
130 tprints(", ");
131 } else {
132 print_xattr_list(tcp, tcp->u_arg[1], tcp->u_arg[2]);
133 }
134 return 0;
135 }
136
SYS_FUNC(removexattr)137 SYS_FUNC(removexattr)
138 {
139 printpath(tcp, tcp->u_arg[0]);
140 tprints(", ");
141 printstr(tcp, tcp->u_arg[1]);
142 return RVAL_DECODED;
143 }
144
SYS_FUNC(fremovexattr)145 SYS_FUNC(fremovexattr)
146 {
147 printfd(tcp, tcp->u_arg[0]);
148 tprints(", ");
149 printstr(tcp, tcp->u_arg[1]);
150 return RVAL_DECODED;
151 }
152