/* Install ".<filename>.hmac" file for FIPS self-checks */
static int hmac_install(const char *src, const char *dst, const char *hmacpath)
{
_cleanup_free_ char *srcpath = strdup(src);
_cleanup_free_ char *dstpath = strdup(dst);
_cleanup_free_ char *srchmacname = NULL;
_cleanup_free_ char *dsthmacname = NULL;
int ret;
if (!(srcpath && dstpath))
return -ENOMEM;
size_t dlen = dir_len(src);
if (endswith(src, ".hmac"))
return 0;
if (!hmacpath) {
hmac_install(src, dst, "/lib/fipscheck");
hmac_install(src, dst, "/lib64/fipscheck");
hmac_install(src, dst, "/lib/hmaccalc");
hmac_install(src, dst, "/lib64/hmaccalc");
}
srcpath[dlen] = '\0';
dstpath[dir_len(dst)] = '\0';
if (hmacpath) {
ret = asprintf(&srchmacname, "%s/%s.hmac", hmacpath, &src[dlen + 1]);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
ret = asprintf(&dsthmacname, "%s/%s.hmac", hmacpath, &src[dlen + 1]);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
} else {
ret = asprintf(&srchmacname, "%s/.%s.hmac", srcpath, &src[dlen + 1]);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
ret = asprintf(&dsthmacname, "%s/.%s.hmac", dstpath, &src[dlen + 1]);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
}
log_debug("hmac cp '%s' '%s')", srchmacname, dsthmacname);
dracut_install(srchmacname, dsthmacname, false, false, true);
return 0;
}
char *
dir_name (char const *file)
{
size_t length = dir_len (file);
bool append_dot = (length == FILE_SYSTEM_PREFIX_LEN (file));
char *dir = xmalloc (length + append_dot + 1);
memcpy (dir, file, length);
if (append_dot)
dir[length++] = '.';
dir[length] = 0;
return dir;
}
char *
dir_name (char const *file)
{
size_t length = dir_len (file);
bool append_dot = (length == 0
|| (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
&& length == FILE_SYSTEM_PREFIX_LEN (file)
&& file[2] != '\0' && ! ISSLASH (file[2])));
char *dir = xmalloc (length + append_dot + 1);
memcpy (dir, file, length);
if (append_dot)
dir[length++] = '.';
dir[length] = '\0';
return dir;
}
/**
* Return an absolute path corresponding to PATH, which is absolute or relative
* to the directory containing BASE_FILE, or NULL on error
*/
static char *
absolutePathFromBaseFile(const char *base_file, const char *path)
{
char *res;
size_t d_len = dir_len (base_file);
/* If path is already absolute, or if dirname(base_file) is ".",
just return a copy of path. */
if (*path == '/' || d_len == 0)
return strdup(path);
/* Ensure that the following cast-to-int is valid. */
if (d_len > INT_MAX)
return NULL;
virAsprintf(&res, "%.*s/%s", (int) d_len, base_file, path);
return res;
}
static int
parent_dir_changed(struct archive_string *dir, struct archive_entry *entry)
{
const char *path;
size_t l;
l = dir_len(entry);
path = tk_archive_entry_pathname(entry);
if (tk_archive_strlen(dir) > 0) {
if (l == 0) {
tk_archive_string_empty(dir);
return (1);
}
if (strncmp(dir->s, path, l) == 0)
return (0); /* The parent directory is the same. */
} else if (l == 0)
return (0); /* The parent directory is the same. */
tk_archive_strncpy(dir, path, l);
return (1);
}
static char *convert_abs_rel(const char *from, const char *target)
{
/* we use the 4*MAXPATHLEN, which should not overrun */
char relative_from[MAXPATHLEN * 4];
_cleanup_free_ char *realtarget = NULL;
_cleanup_free_ char *target_dir_p = NULL, *realpath_p = NULL;
const char *realfrom = from;
size_t level = 0, fromlevel = 0, targetlevel = 0;
int l;
size_t i, rl, dirlen;
int ret;
target_dir_p = strdup(target);
if (!target_dir_p)
return strdup(from);
dirlen = dir_len(target_dir_p);
target_dir_p[dirlen] = '\0';
realpath_p = realpath(target_dir_p, NULL);
if (realpath_p == NULL) {
log_warning("convert_abs_rel(): target '%s' directory has no realpath.", target);
return strdup(from);
}
/* dir_len() skips double /'s e.g. //lib64, so we can't skip just one
* character - need to skip all leading /'s */
rl = strlen(target);
for (i = dirlen + 1; i < rl; ++i)
if (target_dir_p[i] != '/')
break;
ret = asprintf(&realtarget, "%s/%s", realpath_p, &target_dir_p[i]);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
/* now calculate the relative path from <from> to <target> and
store it in <relative_from>
*/
relative_from[0] = 0;
rl = 0;
/* count the pathname elements of realtarget */
for (targetlevel = 0, i = 0; realtarget[i]; i++)
if (realtarget[i] == '/')
targetlevel++;
/* count the pathname elements of realfrom */
for (fromlevel = 0, i = 0; realfrom[i]; i++)
if (realfrom[i] == '/')
fromlevel++;
/* count the pathname elements, which are common for both paths */
for (level = 0, i = 0; realtarget[i] && (realtarget[i] == realfrom[i]); i++)
if (realtarget[i] == '/')
level++;
/* add "../" to the relative_from path, until the common pathname is
reached */
for (i = level; i < targetlevel; i++) {
if (i != level)
relative_from[rl++] = '/';
relative_from[rl++] = '.';
relative_from[rl++] = '.';
}
/* set l to the next uncommon pathname element in realfrom */
for (l = 1, i = 1; i < level; i++)
for (l++; realfrom[l] && realfrom[l] != '/'; l++) ;
/* skip next '/' */
l++;
/* append the uncommon rest of realfrom to the relative_from path */
for (i = level; i <= fromlevel; i++) {
if (rl)
relative_from[rl++] = '/';
while (realfrom[l] && realfrom[l] != '/')
relative_from[rl++] = realfrom[l++];
l++;
}
relative_from[rl] = 0;
return strdup(relative_from);
}
static int dracut_install(const char *src, const char *dst, bool isdir, bool resolvedeps, bool hashdst)
{
struct stat sb, db;
_cleanup_free_ char *fulldstpath = NULL;
_cleanup_free_ char *fulldstdir = NULL;
int ret;
bool src_exists = true;
char *i = NULL;
char *existing;
log_debug("dracut_install('%s', '%s')", src, dst);
existing = hashmap_get(items_failed, src);
if (existing) {
if (strcmp(existing, src) == 0) {
log_debug("hash hit items_failed for '%s'", src);
return 1;
}
}
if (hashdst) {
existing = hashmap_get(items, dst);
if (existing) {
if (strcmp(existing, dst) == 0) {
log_debug("hash hit items for '%s'", dst);
return 0;
}
}
}
if (lstat(src, &sb) < 0) {
src_exists = false;
if (!isdir) {
i = strdup(src);
hashmap_put(items_failed, i, i);
/* src does not exist */
return 1;
}
}
i = strdup(dst);
if (!i)
return -ENOMEM;
hashmap_put(items, i, i);
ret = asprintf(&fulldstpath, "%s%s", destrootdir, dst);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
ret = stat(fulldstpath, &sb);
if (ret != 0 && (errno != ENOENT)) {
log_error("ERROR: stat '%s': %m", fulldstpath);
return 1;
}
if (ret == 0) {
if (resolvedeps && S_ISREG(sb.st_mode) && (sb.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH))) {
log_debug("'%s' already exists, but checking for any deps", fulldstpath);
ret = resolve_deps(src);
} else
log_debug("'%s' already exists", fulldstpath);
/* dst does already exist */
return ret;
}
/* check destination directory */
fulldstdir = strdup(fulldstpath);
fulldstdir[dir_len(fulldstdir)] = '\0';
ret = stat(fulldstdir, &db);
if (ret < 0) {
_cleanup_free_ char *dname = NULL;
if (errno != ENOENT) {
log_error("ERROR: stat '%s': %m", fulldstdir);
return 1;
}
/* create destination directory */
log_debug("dest dir '%s' does not exist", fulldstdir);
dname = strdup(dst);
if (!dname)
return 1;
dname[dir_len(dname)] = '\0';
ret = dracut_install(dname, dname, true, false, true);
if (ret != 0) {
log_error("ERROR: failed to create directory '%s'", fulldstdir);
return 1;
}
}
if (isdir && !src_exists) {
log_info("mkdir '%s'", fulldstpath);
ret = mkdir(fulldstpath, 0755);
return ret;
}
/* ready to install src */
if (S_ISDIR(sb.st_mode)) {
log_info("mkdir '%s'", fulldstpath);
ret = mkdir(fulldstpath, sb.st_mode | S_IWUSR);
return ret;
}
if (S_ISLNK(sb.st_mode)) {
_cleanup_free_ char *abspath = NULL;
abspath = realpath(src, NULL);
if (abspath == NULL)
return 1;
if (dracut_install(abspath, abspath, false, resolvedeps, hashdst)) {
log_debug("'%s' install error", abspath);
return 1;
}
if (lstat(abspath, &sb) != 0) {
log_debug("lstat '%s': %m", abspath);
return 1;
}
if (lstat(fulldstpath, &sb) != 0) {
_cleanup_free_ char *absdestpath = NULL;
ret = asprintf(&absdestpath, "%s%s", destrootdir, abspath);
if (ret < 0) {
log_error("Out of memory!");
exit(EXIT_FAILURE);
}
ln_r(absdestpath, fulldstpath);
}
if (arg_hmac) {
/* copy .hmac files also */
hmac_install(src, dst, NULL);
}
return 0;
}
if (sb.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)) {
if (resolvedeps)
ret += resolve_deps(src);
if (arg_hmac) {
/* copy .hmac files also */
hmac_install(src, dst, NULL);
}
}
log_debug("dracut_install ret = %d", ret);
log_info("cp '%s' '%s'", src, fulldstpath);
if (arg_hostonly)
mark_hostonly(dst);
ret += cp(src, fulldstpath);
if (ret == 0 && logfile_f)
dracut_log_cp(src);
log_debug("dracut_install ret = %d", ret);
return ret;
}
int
main (void)
{
struct test *t;
bool ok = true;
for (t = tests; t->name; t++)
{
char *dir = dir_name (t->name);
int dirlen = dir_len (t->name);
char *last = last_component (t->name);
char *base = base_name (t->name);
int baselen = base_len (base);
char *stripped = strdup (t->name);
bool modified = strip_trailing_slashes (stripped);
bool absolute = IS_ABSOLUTE_FILE_NAME (t->name);
if (! (strcmp (dir, t->dir) == 0
&& (dirlen == strlen (dir)
|| (dirlen + 1 == strlen (dir) && dir[dirlen] == '.'))))
{
ok = false;
printf ("dir_name '%s': got '%s' len %d,"
" expected '%s' len %ld\n",
t->name, dir, dirlen,
t->dir, (unsigned long) strlen (t->dir));
}
if (strcmp (last, t->last))
{
ok = false;
printf ("last_component '%s': got '%s', expected '%s'\n",
t->name, last, t->last);
}
if (! (strcmp (base, t->base) == 0
&& (baselen == strlen (base)
|| (baselen + 1 == strlen (base)
&& ISSLASH (base[baselen])))))
{
ok = false;
printf ("base_name '%s': got '%s' len %d,"
" expected '%s' len %ld\n",
t->name, base, baselen,
t->base, (unsigned long) strlen (t->base));
}
if (strcmp (stripped, t->stripped) || modified != t->modified)
{
ok = false;
printf ("strip_trailing_slashes '%s': got %s %s, expected %s %s\n",
t->name, stripped, modified ? "changed" : "unchanged",
t->stripped, t->modified ? "changed" : "unchanged");
}
if (t->absolute != absolute)
{
ok = false;
printf ("'%s': got %s, expected %s\n", t->name,
absolute ? "absolute" : "relative",
t->absolute ? "absolute" : "relative");
}
free (dir);
free (base);
free (stripped);
}
return ok ? 0 : 1;
}