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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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Christian Brauner
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Oct 11, 2017
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/* liblxcapi | ||
* | ||
* Copyright © 2017 Christian Brauner <christian.brauner@ubuntu.com>. | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2, as | ||
* published by the Free Software Foundation. | ||
* | ||
* 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, write to the Free Software Foundation, Inc., | ||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
*/ | ||
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#include <errno.h> | ||
#include <signal.h> | ||
#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <string.h> | ||
#include <unistd.h> | ||
#include <sys/types.h> | ||
#include <sys/wait.h> | ||
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#include <lxc/lxccontainer.h> | ||
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#include "lxctest.h" | ||
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int main(int argc, char *argv[]) | ||
{ | ||
char *value; | ||
struct lxc_container *c; | ||
int ret = EXIT_FAILURE; | ||
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c = lxc_container_new("livepatch", NULL); | ||
if (!c) { | ||
lxc_error("%s", "Failed to create container \"livepatch\""); | ||
exit(ret); | ||
} | ||
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if (c->is_defined(c)) { | ||
lxc_error("%s\n", "Container \"livepatch\" is defined"); | ||
goto on_error_put; | ||
} | ||
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if (!c->set_config_item(c, "lxc.net.0.type", "veth")) { | ||
lxc_error("%s\n", "Failed to set network item \"lxc.net.0.type\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->set_config_item(c, "lxc.net.0.link", "lxcbr0")) { | ||
lxc_error("%s\n", "Failed to set network item \"lxc.net.0.link\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->set_config_item(c, "lxc.net.0.flags", "up")) { | ||
lxc_error("%s\n", "Failed to set network item \"lxc.net.0.flags\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->set_config_item(c, "lxc.net.0.name", "eth0")) { | ||
lxc_error("%s\n", "Failed to set network item \"lxc.net.0.name\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) { | ||
lxc_error("%s\n", "Failed to create busybox container \"livepatch\""); | ||
goto on_error_put; | ||
} | ||
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if (!c->is_defined(c)) { | ||
lxc_error("%s\n", "Container \"livepatch\" is not defined"); | ||
goto on_error_put; | ||
} | ||
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c->clear_config(c); | ||
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if (!c->load_config(c, NULL)) { | ||
lxc_error("%s\n", "Failed to load config for container \"livepatch\""); | ||
goto on_error_stop; | ||
} | ||
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if (!c->want_daemonize(c, true)) { | ||
lxc_error("%s\n", "Failed to mark container \"livepatch\" daemonized"); | ||
goto on_error_stop; | ||
} | ||
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if (!c->startl(c, 0, NULL)) { | ||
lxc_error("%s\n", "Failed to start container \"livepatch\" daemonized"); | ||
goto on_error_stop; | ||
} | ||
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/* Test whether the current value is ok. */ | ||
value = c->get_running_config_item(c, "lxc.net.0.name"); | ||
if (!value) { | ||
lxc_error("%s\n", "Failed to retrieve running config item \"lxc.net.0.name\""); | ||
goto on_error_stop; | ||
} | ||
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if (strcmp(value, "eth0")) { | ||
lxc_error("Retrieved unexpected value for config item " | ||
"\"lxc.net.0.name\": eth0 != %s", value); | ||
free(value); | ||
goto on_error_stop; | ||
} | ||
free(value); | ||
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/* Change current in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.0.name", "blabla")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.0.name\" to \"blabla\""); | ||
goto on_error_stop; | ||
} | ||
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/* Verify change. */ | ||
value = c->get_running_config_item(c, "lxc.net.0.name"); | ||
if (!value) { | ||
lxc_error("%s\n", "Failed to retrieve running config item \"lxc.net.0.name\""); | ||
goto on_error_stop; | ||
} | ||
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if (strcmp(value, "blabla")) { | ||
lxc_error("Retrieved unexpected value for config item " | ||
"\"lxc.net.0.name\": blabla != %s", value); | ||
free(value); | ||
goto on_error_stop; | ||
} | ||
free(value); | ||
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/* Change current in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.0.name", "eth0")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.0.name\" to \"eth0\""); | ||
goto on_error_stop; | ||
} | ||
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/* Add new in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.1.type", "veth")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.1.type\" to \"veth\""); | ||
goto on_error_stop; | ||
} | ||
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/* Verify change. */ | ||
value = c->get_running_config_item(c, "lxc.net.1.type"); | ||
if (!value) { | ||
lxc_error("%s\n", "Failed to retrieve running config item \"lxc.net.1.type\""); | ||
goto on_error_stop; | ||
} | ||
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if (strcmp(value, "veth")) { | ||
lxc_error("Retrieved unexpected value for config item " | ||
"\"lxc.net.1.type\": veth != %s", value); | ||
free(value); | ||
goto on_error_stop; | ||
} | ||
free(value); | ||
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/* Add new in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.1.flags", "up")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.1.flags\" to \"up\""); | ||
goto on_error_stop; | ||
} | ||
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/* Verify change. */ | ||
value = c->get_running_config_item(c, "lxc.net.1.flags"); | ||
if (!value) { | ||
lxc_error("%s\n", "Failed to retrieve running config item \"lxc.net.1.flags\""); | ||
goto on_error_stop; | ||
} | ||
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if (strcmp(value, "up")) { | ||
lxc_error("Retrieved unexpected value for config item " | ||
"\"lxc.net.1.flags\": up != %s", value); | ||
free(value); | ||
goto on_error_stop; | ||
} | ||
free(value); | ||
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/* Add new in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.1.link", "lxcbr0")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.1.link\" to \"lxcbr0\""); | ||
goto on_error_stop; | ||
} | ||
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/* Verify change. */ | ||
value = c->get_running_config_item(c, "lxc.net.1.link"); | ||
if (!value) { | ||
lxc_error("%s\n", "Failed to retrieve running config item \"lxc.net.1.link\""); | ||
goto on_error_stop; | ||
} | ||
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if (strcmp(value, "lxcbr0")) { | ||
lxc_error("Retrieved unexpected value for config item " | ||
"\"lxc.net.1.link\": lxcbr0 != %s", value); | ||
free(value); | ||
goto on_error_stop; | ||
} | ||
free(value); | ||
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if (!c->reboot(c)) { | ||
lxc_error("%s", "Failed to create container \"livepatch\""); | ||
goto on_error_stop; | ||
} | ||
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/* Busybox shouldn't take long to reboot. Sleep for 5s. */ | ||
sleep(5); | ||
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if (!c->is_running(c)) { | ||
lxc_error("%s\n", "Failed to reboot container \"livepatch\""); | ||
goto on_error_destroy; | ||
} | ||
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/* Remove in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.1.name", "eth1")) { | ||
lxc_error("%s\n", "Failed to clear running config item " | ||
"\"lxc.net.1.name\""); | ||
goto on_error_stop; | ||
} | ||
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if (!c->stop(c)) { | ||
lxc_error("%s\n", "Failed to stop container \"livepatch\""); | ||
goto on_error_stop; | ||
} | ||
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if (!c->startl(c, 0, NULL)) { | ||
lxc_error("%s\n", "Failed to start container \"livepatch\" daemonized"); | ||
goto on_error_destroy; | ||
} | ||
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/* Remove in-memory value. */ | ||
if (!c->set_running_config_item(c, "lxc.net.1.mtu", "3000")) { | ||
lxc_error("%s\n", "Failed to set running config item " | ||
"\"lxc.net.1.mtu\""); | ||
goto on_error_stop; | ||
} | ||
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ret = 0; | ||
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on_error_stop: | ||
if (c->is_running(c) && !c->stop(c)) | ||
lxc_error("%s\n", "Failed to stop container \"livepatch\""); | ||
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on_error_destroy: | ||
if (!c->destroy(c)) | ||
lxc_error("%s\n", "Failed to destroy container \"livepatch\""); | ||
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on_error_put: | ||
lxc_container_put(c); | ||
exit(ret); | ||
} |