1 /*
2 * Copyright (c) 2011 Alex Hornung <alex@alexhornung.com>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/resource.h>
31 #include <sys/time.h>
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/stat.h>
35 #include <sys/linker.h>
36 #include <sys/ioctl.h>
37 #include <sys/wait.h>
38
39 #include <errno.h>
40 #include <fcntl.h>
41 #include <signal.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <stdint.h>
45 #include <string.h>
46 #include <unistd.h>
47 #include <pwd.h>
48
49 #include <err.h>
50
51 #include <libprop/proplib.h>
52
53 #include "parser.h"
54 #include "testcase.h"
55 #include "runlist.h"
56 #include "config.h"
57 #include "kernel.h"
58 #include <dfregress.h>
59 #include <sys/tbridge.h>
60
61
62 int
run_kernel(const char * kmod,prop_dictionary_t testcase)63 run_kernel(const char *kmod, prop_dictionary_t testcase)
64 {
65 char errmsg[1024];
66 prop_dictionary_t tkcase = NULL;
67 struct stat sb;
68 int fd, r, kmod_id, ret = 0;
69
70 if ((r = stat("/dev/tbridge", &sb)) != 0) {
71 sprintf(errmsg, "Kernel bridge module probably not loaded: %s",
72 strerror(errno));
73 testcase_set_sys_buf(testcase, errmsg);
74 testcase_set_result(testcase, RESULT_PREFAIL);
75
76 return -1;
77 }
78
79 /* First kldload the testcase */
80 kmod_id = kldload(kmod);
81 if (kmod_id < 0) {
82 sprintf(errmsg, "Could not load testcase kmod %s: %s", kmod,
83 strerror(errno));
84 testcase_set_sys_buf(testcase, errmsg);
85 testcase_set_result(testcase, RESULT_PREFAIL);
86
87 return -1;
88 }
89
90 /* Open control device */
91 fd = open("/dev/tbridge", O_RDWR);
92 if (fd < 0) {
93 sprintf(errmsg, "Could not open kernel bridge interface: %s",
94 strerror(errno));
95 testcase_set_sys_buf(testcase, errmsg);
96 testcase_set_result(testcase, RESULT_PREFAIL);
97
98 ret = -1;
99 goto unload;
100 }
101
102 /* Then load the testcase description into the kernel */
103 r = prop_dictionary_send_ioctl(testcase, fd, TBRIDGE_LOADTEST);
104 if (r < 0) {
105 sprintf(errmsg, "sending testcase to kernel failed: %s",
106 strerror(errno));
107 testcase_set_sys_buf(testcase, errmsg);
108 testcase_set_result(testcase, RESULT_PREFAIL);
109
110 ret = -1;
111 goto unload;
112 }
113
114 /* Then wait for the result */
115 r = prop_dictionary_recv_ioctl(fd, TBRIDGE_GETRESULT, &tkcase);
116 if (r < 0) {
117 sprintf(errmsg, "receiving test results from kernel failed: %s",
118 strerror(errno));
119 testcase_set_sys_buf(testcase, errmsg);
120 testcase_set_result(testcase, RESULT_PREFAIL);
121
122 ret = -1;
123 goto unload;
124 }
125
126 /* Copy over the values of interest */
127 testcase_set_result(testcase, testcase_get_result(tkcase));
128 testcase_set_stdout_buf(testcase, testcase_get_stdout_buf(tkcase));
129
130 /* Release copy received from kernel */
131 prop_object_release(tkcase);
132
133 unload:
134 r = kldunload(kmod_id);
135 if (r < 0) {
136 sprintf(errmsg, "kldunload for %s failed: %s", kmod,
137 strerror(errno));
138 testcase_set_sys_buf(testcase, errmsg);
139
140 ret = -1;
141 }
142
143 return ret;
144 }
145