mirror of
https://github.com/systemd/systemd.git
synced 2024-11-07 01:27:11 +03:00
368 lines
14 KiB
C
368 lines
14 KiB
C
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 Lennart Poettering
|
|
Copyright 2013 Thomas H.P. Andersen
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
|
|
#include "alloc-util.h"
|
|
#include "copy.h"
|
|
#include "def.h"
|
|
#include "env-util.h"
|
|
#include "exec-util.h"
|
|
#include "fd-util.h"
|
|
#include "fileio.h"
|
|
#include "fs-util.h"
|
|
#include "log.h"
|
|
#include "macro.h"
|
|
#include "rm-rf.h"
|
|
#include "string-util.h"
|
|
#include "strv.h"
|
|
|
|
static int here = 0, here2 = 0, here3 = 0;
|
|
void *ignore_stdout_args[] = {&here, &here2, &here3};
|
|
|
|
/* noop handlers, just check that arguments are passed correctly */
|
|
static int ignore_stdout_func(int fd, void *arg) {
|
|
assert(fd >= 0);
|
|
assert(arg == &here);
|
|
safe_close(fd);
|
|
|
|
return 0;
|
|
}
|
|
static int ignore_stdout_func2(int fd, void *arg) {
|
|
assert(fd >= 0);
|
|
assert(arg == &here2);
|
|
safe_close(fd);
|
|
|
|
return 0;
|
|
}
|
|
static int ignore_stdout_func3(int fd, void *arg) {
|
|
assert(fd >= 0);
|
|
assert(arg == &here3);
|
|
safe_close(fd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const gather_stdout_callback_t ignore_stdout[] = {
|
|
ignore_stdout_func,
|
|
ignore_stdout_func2,
|
|
ignore_stdout_func3,
|
|
};
|
|
|
|
static void test_execute_directory(bool gather_stdout) {
|
|
char template_lo[] = "/tmp/test-exec-util.lo.XXXXXXX";
|
|
char template_hi[] = "/tmp/test-exec-util.hi.XXXXXXX";
|
|
const char * dirs[] = {template_hi, template_lo, NULL};
|
|
const char *name, *name2, *name3,
|
|
*overridden, *override,
|
|
*masked, *mask,
|
|
*masked2, *mask2, /* the mask is non-executable */
|
|
*masked2e, *mask2e; /* the mask is executable */
|
|
|
|
log_info("/* %s (%s) */", __func__, gather_stdout ? "gathering stdout" : "asynchronous");
|
|
|
|
assert_se(mkdtemp(template_lo));
|
|
assert_se(mkdtemp(template_hi));
|
|
|
|
name = strjoina(template_lo, "/script");
|
|
name2 = strjoina(template_hi, "/script2");
|
|
name3 = strjoina(template_lo, "/useless");
|
|
overridden = strjoina(template_lo, "/overridden");
|
|
override = strjoina(template_hi, "/overridden");
|
|
masked = strjoina(template_lo, "/masked");
|
|
mask = strjoina(template_hi, "/masked");
|
|
masked2 = strjoina(template_lo, "/masked2");
|
|
mask2 = strjoina(template_hi, "/masked2");
|
|
masked2e = strjoina(template_lo, "/masked2e");
|
|
mask2e = strjoina(template_hi, "/masked2e");
|
|
|
|
assert_se(write_string_file(name,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(name2,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works2",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(overridden,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(override,
|
|
"#!/bin/sh\necho 'Executing '$0",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(masked,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(masked2,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(masked2e,
|
|
"#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(symlink("/dev/null", mask) == 0);
|
|
assert_se(touch(mask2) == 0);
|
|
assert_se(touch(mask2e) == 0);
|
|
assert_se(touch(name3) >= 0);
|
|
|
|
assert_se(chmod(name, 0755) == 0);
|
|
assert_se(chmod(name2, 0755) == 0);
|
|
assert_se(chmod(overridden, 0755) == 0);
|
|
assert_se(chmod(override, 0755) == 0);
|
|
assert_se(chmod(masked, 0755) == 0);
|
|
assert_se(chmod(masked2, 0755) == 0);
|
|
assert_se(chmod(masked2e, 0755) == 0);
|
|
assert_se(chmod(mask2e, 0755) == 0);
|
|
|
|
if (gather_stdout)
|
|
execute_directories(dirs, DEFAULT_TIMEOUT_USEC, ignore_stdout, ignore_stdout_args, NULL);
|
|
else
|
|
execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL, NULL, NULL);
|
|
|
|
assert_se(chdir(template_lo) == 0);
|
|
assert_se(access("it_works", F_OK) >= 0);
|
|
assert_se(access("failed", F_OK) < 0);
|
|
|
|
assert_se(chdir(template_hi) == 0);
|
|
assert_se(access("it_works2", F_OK) >= 0);
|
|
assert_se(access("failed", F_OK) < 0);
|
|
|
|
(void) rm_rf(template_lo, REMOVE_ROOT|REMOVE_PHYSICAL);
|
|
(void) rm_rf(template_hi, REMOVE_ROOT|REMOVE_PHYSICAL);
|
|
}
|
|
|
|
static void test_execution_order(void) {
|
|
char template_lo[] = "/tmp/test-exec-util-lo.XXXXXXX";
|
|
char template_hi[] = "/tmp/test-exec-util-hi.XXXXXXX";
|
|
const char *dirs[] = {template_hi, template_lo, NULL};
|
|
const char *name, *name2, *name3, *overridden, *override, *masked, *mask;
|
|
const char *output, *t;
|
|
_cleanup_free_ char *contents = NULL;
|
|
|
|
assert_se(mkdtemp(template_lo));
|
|
assert_se(mkdtemp(template_hi));
|
|
|
|
output = strjoina(template_hi, "/output");
|
|
|
|
log_info("/* %s >>%s */", __func__, output);
|
|
|
|
/* write files in "random" order */
|
|
name2 = strjoina(template_lo, "/90-bar");
|
|
name = strjoina(template_hi, "/80-foo");
|
|
name3 = strjoina(template_lo, "/last");
|
|
overridden = strjoina(template_lo, "/30-override");
|
|
override = strjoina(template_hi, "/30-override");
|
|
masked = strjoina(template_lo, "/10-masked");
|
|
mask = strjoina(template_hi, "/10-masked");
|
|
|
|
t = strjoina("#!/bin/sh\necho $(basename $0) >>", output);
|
|
assert_se(write_string_file(name, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
t = strjoina("#!/bin/sh\necho $(basename $0) >>", output);
|
|
assert_se(write_string_file(name2, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
t = strjoina("#!/bin/sh\necho $(basename $0) >>", output);
|
|
assert_se(write_string_file(name3, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
t = strjoina("#!/bin/sh\necho OVERRIDDEN >>", output);
|
|
assert_se(write_string_file(overridden, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
t = strjoina("#!/bin/sh\necho $(basename $0) >>", output);
|
|
assert_se(write_string_file(override, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
t = strjoina("#!/bin/sh\necho MASKED >>", output);
|
|
assert_se(write_string_file(masked, t, WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
assert_se(symlink("/dev/null", mask) == 0);
|
|
|
|
assert_se(chmod(name, 0755) == 0);
|
|
assert_se(chmod(name2, 0755) == 0);
|
|
assert_se(chmod(name3, 0755) == 0);
|
|
assert_se(chmod(overridden, 0755) == 0);
|
|
assert_se(chmod(override, 0755) == 0);
|
|
assert_se(chmod(masked, 0755) == 0);
|
|
|
|
execute_directories(dirs, DEFAULT_TIMEOUT_USEC, ignore_stdout, ignore_stdout_args, NULL);
|
|
|
|
assert_se(read_full_file(output, &contents, NULL) >= 0);
|
|
assert_se(streq(contents, "30-override\n80-foo\n90-bar\nlast\n"));
|
|
|
|
(void) rm_rf(template_lo, REMOVE_ROOT|REMOVE_PHYSICAL);
|
|
(void) rm_rf(template_hi, REMOVE_ROOT|REMOVE_PHYSICAL);
|
|
}
|
|
|
|
static int gather_stdout_one(int fd, void *arg) {
|
|
char ***s = arg, *t;
|
|
char buf[128] = {};
|
|
|
|
assert_se(s);
|
|
assert_se(read(fd, buf, sizeof buf) >= 0);
|
|
safe_close(fd);
|
|
|
|
assert_se(t = strndup(buf, sizeof buf));
|
|
assert_se(strv_push(s, t) >= 0);
|
|
|
|
return 0;
|
|
}
|
|
static int gather_stdout_two(int fd, void *arg) {
|
|
char ***s = arg, **t;
|
|
|
|
STRV_FOREACH(t, *s)
|
|
assert_se(write(fd, *t, strlen(*t)) == (ssize_t) strlen(*t));
|
|
safe_close(fd);
|
|
|
|
return 0;
|
|
}
|
|
static int gather_stdout_three(int fd, void *arg) {
|
|
char **s = arg;
|
|
char buf[128] = {};
|
|
|
|
assert_se(read(fd, buf, sizeof buf - 1) > 0);
|
|
safe_close(fd);
|
|
assert_se(*s = strndup(buf, sizeof buf));
|
|
|
|
return 0;
|
|
}
|
|
|
|
const gather_stdout_callback_t gather_stdout[] = {
|
|
gather_stdout_one,
|
|
gather_stdout_two,
|
|
gather_stdout_three,
|
|
};
|
|
|
|
|
|
static void test_stdout_gathering(void) {
|
|
char template[] = "/tmp/test-exec-util.XXXXXXX";
|
|
const char *dirs[] = {template, NULL};
|
|
const char *name, *name2, *name3;
|
|
int r;
|
|
|
|
char **tmp = NULL; /* this is only used in the forked process, no cleanup here */
|
|
_cleanup_free_ char *output = NULL;
|
|
|
|
void* args[] = {&tmp, &tmp, &output};
|
|
|
|
assert_se(mkdtemp(template));
|
|
|
|
log_info("/* %s */", __func__);
|
|
|
|
/* write files */
|
|
name = strjoina(template, "/10-foo");
|
|
name2 = strjoina(template, "/20-bar");
|
|
name3 = strjoina(template, "/30-last");
|
|
|
|
assert_se(write_string_file(name,
|
|
"#!/bin/sh\necho a\necho b\necho c\n",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(name2,
|
|
"#!/bin/sh\necho d\n",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(name3,
|
|
"#!/bin/sh\nsleep 1",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
assert_se(chmod(name, 0755) == 0);
|
|
assert_se(chmod(name2, 0755) == 0);
|
|
assert_se(chmod(name3, 0755) == 0);
|
|
|
|
r = execute_directories(dirs, DEFAULT_TIMEOUT_USEC, gather_stdout, args, NULL);
|
|
assert_se(r >= 0);
|
|
|
|
log_info("got: %s", output);
|
|
|
|
assert_se(streq(output, "a\nb\nc\nd\n"));
|
|
}
|
|
|
|
static void test_environment_gathering(void) {
|
|
char template[] = "/tmp/test-exec-util.XXXXXXX", **p;
|
|
const char *dirs[] = {template, NULL};
|
|
const char *name, *name2, *name3;
|
|
int r;
|
|
|
|
char **tmp = NULL; /* this is only used in the forked process, no cleanup here */
|
|
_cleanup_strv_free_ char **env = NULL;
|
|
|
|
void* const args[] = { &tmp, &tmp, &env };
|
|
|
|
assert_se(mkdtemp(template));
|
|
|
|
log_info("/* %s */", __func__);
|
|
|
|
/* write files */
|
|
name = strjoina(template, "/10-foo");
|
|
name2 = strjoina(template, "/20-bar");
|
|
name3 = strjoina(template, "/30-last");
|
|
|
|
assert_se(write_string_file(name,
|
|
"#!/bin/sh\n"
|
|
"echo A=23\n",
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(name2,
|
|
"#!/bin/sh\n"
|
|
"echo A=22:$A\n\n\n", /* substitution from previous generator */
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
assert_se(write_string_file(name3,
|
|
"#!/bin/sh\n"
|
|
"echo A=$A:24\n"
|
|
"echo B=12\n"
|
|
"echo C=000\n"
|
|
"echo C=001\n" /* variable overwriting */
|
|
/* various invalid entries */
|
|
"echo unset A\n"
|
|
"echo unset A=\n"
|
|
"echo unset A=B\n"
|
|
"echo unset \n"
|
|
"echo A B=C\n"
|
|
"echo A\n"
|
|
/* test variable assignment without newline */
|
|
"echo PATH=$PATH:/no/such/file", /* no newline */
|
|
WRITE_STRING_FILE_CREATE) == 0);
|
|
|
|
assert_se(chmod(name, 0755) == 0);
|
|
assert_se(chmod(name2, 0755) == 0);
|
|
assert_se(chmod(name3, 0755) == 0);
|
|
|
|
r = execute_directories(dirs, DEFAULT_TIMEOUT_USEC, gather_environment, args, NULL);
|
|
assert_se(r >= 0);
|
|
|
|
STRV_FOREACH(p, env)
|
|
log_info("got env: \"%s\"", *p);
|
|
|
|
assert_se(streq(strv_env_get(env, "A"), "22:23:24"));
|
|
assert_se(streq(strv_env_get(env, "B"), "12"));
|
|
assert_se(streq(strv_env_get(env, "C"), "001"));
|
|
assert_se(endswith(strv_env_get(env, "PATH"), ":/no/such/file"));
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
log_set_max_level(LOG_DEBUG);
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
test_execute_directory(true);
|
|
test_execute_directory(false);
|
|
test_execution_order();
|
|
test_stdout_gathering();
|
|
test_environment_gathering();
|
|
|
|
return 0;
|
|
}
|