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a52c1c68 CB |
1 | /* liblxcapi |
2 | * | |
3 | * Copyright © 2017 Christian Brauner <christian.brauner@ubuntu.com>. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | */ | |
18 | ||
19 | #define __STDC_FORMAT_MACROS | |
20 | #include <errno.h> | |
21 | #include <fcntl.h> | |
22 | #include <inttypes.h> | |
23 | #include <signal.h> | |
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | #include <unistd.h> | |
28 | #include <sys/stat.h> | |
29 | #include <sys/types.h> | |
30 | #include <sys/wait.h> | |
31 | ||
32 | #include <lxc/lxccontainer.h> | |
33 | ||
34 | #include "lxctest.h" | |
35 | #include "utils.h" | |
36 | ||
37 | int main(int argc, char *argv[]) | |
38 | { | |
23e0d9af CB |
39 | int ret; |
40 | struct stat st_log_file; | |
a52c1c68 CB |
41 | struct lxc_container *c; |
42 | struct lxc_console_log log; | |
43 | bool do_unlink = false; | |
44 | int fret = EXIT_FAILURE; | |
45 | ||
46 | c = lxc_container_new("console-log", NULL); | |
47 | if (!c) { | |
48 | lxc_error("%s", "Failed to create container \"console-log\""); | |
49 | exit(fret); | |
50 | } | |
51 | ||
52 | if (c->is_defined(c)) { | |
53 | lxc_error("%s\n", "Container \"console-log\" is defined"); | |
54 | goto on_error_put; | |
55 | } | |
56 | ||
57 | /* Set console ringbuffer size. */ | |
8a2404e9 CB |
58 | if (!c->set_config_item(c, "lxc.console.buffer.size", "4096")) { |
59 | lxc_error("%s\n", "Failed to set config item \"lxc.console.buffer.size\""); | |
a52c1c68 CB |
60 | goto on_error_put; |
61 | } | |
62 | ||
8a2404e9 | 63 | /* Set console log file. */ |
a52c1c68 CB |
64 | if (!c->set_config_item(c, "lxc.console.logfile", "/tmp/console-log.log")) { |
65 | lxc_error("%s\n", "Failed to set config item \"lxc.console.logfile\""); | |
66 | goto on_error_put; | |
67 | } | |
68 | ||
69 | if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) { | |
70 | lxc_error("%s\n", "Failed to create busybox container \"console-log\""); | |
71 | goto on_error_put; | |
72 | } | |
73 | ||
74 | if (!c->is_defined(c)) { | |
75 | lxc_error("%s\n", "Container \"console-log\" is not defined"); | |
76 | goto on_error_put; | |
77 | } | |
78 | ||
79 | c->clear_config(c); | |
80 | ||
81 | if (!c->load_config(c, NULL)) { | |
82 | lxc_error("%s\n", "Failed to load config for container \"console-log\""); | |
83 | goto on_error_stop; | |
84 | } | |
85 | ||
86 | if (!c->want_daemonize(c, true)) { | |
87 | lxc_error("%s\n", "Failed to mark container \"console-log\" daemonized"); | |
88 | goto on_error_stop; | |
89 | } | |
90 | ||
91 | if (!c->startl(c, 0, NULL)) { | |
92 | lxc_error("%s\n", "Failed to start container \"console-log\" daemonized"); | |
93 | goto on_error_stop; | |
94 | } | |
95 | ||
96 | /* Leave some time for the container to write something to the log. */ | |
97 | sleep(2); | |
98 | ||
99 | /* Retrieve the contents of the ringbuffer. */ | |
100 | log.clear = false; | |
101 | log.read_max = &(uint64_t){0}; | |
102 | log.read = true; | |
a52c1c68 CB |
103 | |
104 | ret = c->console_log(c, &log); | |
105 | if (ret < 0) { | |
106 | lxc_error("%s - Failed to retrieve console log \n", strerror(-ret)); | |
107 | goto on_error_stop; | |
108 | } else { | |
109 | lxc_debug("Retrieved %" PRIu64 | |
110 | " bytes from console log. Contents are \"%s\"\n", | |
111 | *log.read_max, log.data); | |
112 | } | |
113 | ||
114 | /* Leave another two seconds to ensure boot is finished. */ | |
115 | sleep(2); | |
116 | ||
117 | /* Clear the console ringbuffer. */ | |
118 | log.read_max = &(uint64_t){0}; | |
119 | log.read = false; | |
a52c1c68 CB |
120 | log.clear = true; |
121 | ret = c->console_log(c, &log); | |
122 | if (ret < 0) { | |
123 | if (ret != -ENODATA) { | |
124 | lxc_error("%s - Failed to retrieve console log\n", strerror(-ret)); | |
125 | goto on_error_stop; | |
126 | } | |
127 | } | |
128 | ||
129 | if (!c->stop(c)) { | |
130 | lxc_error("%s\n", "Failed to stop container \"console-log\""); | |
131 | goto on_error_stop; | |
132 | } | |
133 | ||
8a2404e9 CB |
134 | c->clear_config(c); |
135 | ||
136 | if (!c->load_config(c, NULL)) { | |
137 | lxc_error("%s\n", "Failed to load config for container \"console-log\""); | |
138 | goto on_error_stop; | |
139 | } | |
140 | ||
a52c1c68 CB |
141 | if (!c->startl(c, 0, NULL)) { |
142 | lxc_error("%s\n", "Failed to start container \"console-log\" daemonized"); | |
143 | goto on_error_destroy; | |
144 | } | |
a52c1c68 CB |
145 | |
146 | /* Leave some time for the container to write something to the log. */ | |
147 | sleep(2); | |
148 | ||
8a2404e9 CB |
149 | ret = stat("/tmp/console-log.log", &st_log_file); |
150 | if (ret < 0) { | |
151 | lxc_error("%s - Failed to stat on-disk logfile\n", strerror(errno)); | |
152 | goto on_error_stop; | |
153 | } | |
154 | ||
155 | /* Turn on rotation for the console log file. */ | |
156 | if (!c->set_config_item(c, "lxc.console.rotate", "1")) { | |
157 | lxc_error("%s\n", "Failed to set config item \"lxc.console.rotate\""); | |
158 | goto on_error_put; | |
159 | } | |
160 | ||
161 | if (!c->stop(c)) { | |
162 | lxc_error("%s\n", "Failed to stop container \"console-log\""); | |
163 | goto on_error_stop; | |
164 | } | |
165 | ||
166 | if (!c->startl(c, 0, NULL)) { | |
167 | lxc_error("%s\n", "Failed to start container \"console-log\" daemonized"); | |
168 | goto on_error_destroy; | |
169 | } | |
170 | ||
171 | /* Leave some time for the container to write something to the log. */ | |
172 | sleep(2); | |
173 | ||
a52c1c68 CB |
174 | fret = 0; |
175 | ||
176 | on_error_stop: | |
177 | if (c->is_running(c) && !c->stop(c)) | |
178 | lxc_error("%s\n", "Failed to stop container \"console-log\""); | |
179 | ||
180 | on_error_destroy: | |
181 | if (!c->destroy(c)) | |
182 | lxc_error("%s\n", "Failed to destroy container \"console-log\""); | |
183 | ||
184 | on_error_put: | |
185 | lxc_container_put(c); | |
186 | if (do_unlink) { | |
187 | ret = unlink("/tmp/console-log.log"); | |
188 | if (ret < 0) | |
8a2404e9 CB |
189 | lxc_error("%s - Failed to remove container log file\n", |
190 | strerror(errno)); | |
191 | ||
192 | ret = unlink("/tmp/console-log.log.1"); | |
193 | if (ret < 0) | |
194 | lxc_error("%s - Failed to remove container log file\n", | |
195 | strerror(errno)); | |
a52c1c68 CB |
196 | } |
197 | exit(fret); | |
198 | } |