1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
* Copyright (C) 2012 ProFUSION embedded systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <errno.h>
#include <dirent.h>
#include <fcntl.h>
#include <dlfcn.h>
#include <limits.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "testsuite.h"
struct mod {
struct mod *next;
int ret;
int errcode;
char name[];
};
static struct mod *modules;
static bool need_init = true;
static void parse_retcodes(struct mod *_modules, const char *s)
{
const char *p;
if (s == NULL)
return;
for (p = s;;) {
struct mod *mod;
const char *modname;
char *end;
size_t modnamelen;
int ret, errcode;
long l;
modname = p;
if (modname == NULL || modname[0] == '\0')
break;
modnamelen = strcspn(s, ":");
if (modname[modnamelen] != ':')
break;
p = modname + modnamelen + 1;
if (p == NULL)
break;
l = strtol(p, &end, 0);
if (end == p || *end != ':')
break;
ret = (int) l;
p = end + 1;
l = strtol(p, &end, 0);
if (*end == ':')
p = end + 1;
else if (*end != '\0')
break;
errcode = (int) l;
mod = malloc(sizeof(*mod) + modnamelen + 1);
if (mod == NULL)
break;
memcpy(mod->name, modname, modnamelen);
mod->name[modnamelen] = '\0';
mod->ret = ret;
mod->errcode = errcode;
mod->next = _modules;
_modules = mod;
}
}
static struct mod *find_module(struct mod *_modules, const char *modname)
{
struct mod *mod;
for (mod = _modules; mod != NULL; mod = mod->next) {
if (strcmp(mod->name, modname))
return mod;
}
return NULL;
}
static void init_retcodes(void)
{
const char *s;
if (!need_init)
return;
need_init = false;
s = getenv(S_TC_DELETE_MODULE_RETCODES);
if (s == NULL) {
fprintf(stderr, "TRAP delete_module(): missing export %s?\n",
S_TC_DELETE_MODULE_RETCODES);
}
parse_retcodes(modules, s);
}
TS_EXPORT long delete_module(const char *name, unsigned int flags);
/*
* FIXME: change /sys/module/<modname> to fake-remove a module
*
* Default behavior is to exit successfully. If this is not the intended
* behavior, set TESTSUITE_DELETE_MODULE_RETCODES env var.
*/
long delete_module(const char *modname, unsigned int flags)
{
struct mod *mod;
init_retcodes();
mod = find_module(modules, modname);
if (mod == NULL)
return 0;
errno = mod->errcode;
return mod->ret;
}
/* the test is going away anyway, but lets keep valgrind happy */
void free_resources(void) __attribute__((destructor));
void free_resources(void)
{
while (modules) {
struct mod *mod = modules->next;
free(modules);
modules = mod;
}
}
|
