int
xbps_pkgdb_lock(struct xbps_handle *xhp)
{
mode_t prev_umask;
int rv;
/*
* Use a mandatory file lock to only allow one writer to pkgdb,
* other writers will block.
*/
xhp->pkgdb_plist = xbps_xasprintf("%s/%s", xhp->metadir, XBPS_PKGDB);
if (xbps_pkgdb_init(xhp) == ENOENT) {
/* if metadir does not exist, create it */
if (access(xhp->metadir, R_OK|X_OK) == -1) {
if (errno != ENOENT)
return errno;
if (xbps_mkpath(xhp->metadir, 0755) == -1) {
rv = errno;
xbps_dbg_printf(xhp, "[pkgdb] failed to create metadir "
"%s: %s\n", xhp->metadir, strerror(rv));
return rv;
}
}
/* if pkgdb is unexistent, create it with an empty dictionary */
xhp->pkgdb = xbps_dictionary_create();
if (!xbps_dictionary_externalize_to_file(xhp->pkgdb, xhp->pkgdb_plist)) {
rv = errno;
xbps_dbg_printf(xhp, "[pkgdb] failed to create pkgdb "
"%s: %s\n", xhp->pkgdb_plist, strerror(rv));
return rv;
}
}
prev_umask = umask(022);
if ((pkgdb_fd = open(xhp->pkgdb_plist, O_CREAT|O_RDWR|O_CLOEXEC, 0664)) == -1) {
rv = errno;
xbps_dbg_printf(xhp, "[pkgdb] cannot open pkgdb for locking "
"%s: %s\n", xhp->pkgdb_plist, strerror(rv));
free(xhp->pkgdb_plist);
umask(prev_umask);
return rv;
}
umask(prev_umask);
if (lockf(pkgdb_fd, F_TLOCK, 0) == -1) {
rv = errno;
xbps_dbg_printf(xhp, "[pkgdb] cannot lock pkgdb: %s\n", strerror(rv));
return rv;
}
return 0;
}
int
xbps_pkgdb_update(struct xbps_handle *xhp, bool flush, bool update)
{
xbps_dictionary_t pkgdb_storage;
static int cached_rv;
int rv = 0;
if (cached_rv && !flush)
return cached_rv;
if (xhp->pkgdb && update) {
pkgdb_storage = xbps_dictionary_internalize_from_file(xhp->pkgdb_plist);
if (pkgdb_storage == NULL ||
!xbps_dictionary_equals(xhp->pkgdb, pkgdb_storage)) {
/* flush dictionary to storage */
if (!xbps_dictionary_externalize_to_file(xhp->pkgdb, xhp->pkgdb_plist))
return errno;
}
if (pkgdb_storage)
xbps_object_release(pkgdb_storage);
xbps_object_release(xhp->pkgdb);
xhp->pkgdb = NULL;
cached_rv = 0;
}
if (!update)
return rv;
/* update copy in memory */
if ((xhp->pkgdb = xbps_dictionary_internalize_from_file(xhp->pkgdb_plist)) == NULL) {
rv = errno;
if (!rv)
rv = EINVAL;
if (rv == ENOENT)
xhp->pkgdb = xbps_dictionary_create();
else
xbps_error_printf("cannot access to pkgdb: %s\n", strerror(rv));
cached_rv = rv = errno;
}
return rv;
}
int
xbps_pkgdb_update(struct xbps_handle *xhp, bool flush)
{
xbps_dictionary_t pkgdb_storage;
char *plist;
static int cached_rv;
int rv = 0;
if (cached_rv && !flush)
return cached_rv;
plist = xbps_xasprintf("%s/%s", xhp->metadir, XBPS_PKGDB);
if (xhp->pkgdb && flush) {
pkgdb_storage = xbps_dictionary_internalize_from_file(plist);
if (pkgdb_storage == NULL ||
!xbps_dictionary_equals(xhp->pkgdb, pkgdb_storage)) {
/* flush dictionary to storage */
if (!xbps_dictionary_externalize_to_file(xhp->pkgdb, plist)) {
free(plist);
return errno;
}
}
if (pkgdb_storage)
xbps_object_release(pkgdb_storage);
xbps_object_release(xhp->pkgdb);
xhp->pkgdb = NULL;
cached_rv = 0;
}
/* update copy in memory */
if ((xhp->pkgdb = xbps_dictionary_internalize_from_file(plist)) == NULL) {
if (errno == ENOENT)
xhp->pkgdb = xbps_dictionary_create();
else
xbps_error_printf("cannot access to pkgdb: %s\n", strerror(errno));
cached_rv = rv = errno;
}
free(plist);
return rv;
}
int
xbps_repo_key_import(struct xbps_repo *repo)
{
xbps_dictionary_t repokeyd = NULL;
xbps_data_t pubkey = NULL;
uint16_t pubkey_size = 0;
const char *signedby = NULL;
char *hexfp = NULL;
char *p, *dbkeyd, *rkeyfile = NULL;
int import, rv = 0;
assert(repo);
/*
* If repository does not have required metadata plist, ignore it.
*/
if (!xbps_dictionary_count(repo->idxmeta)) {
xbps_dbg_printf(repo->xhp,
"[repo] `%s' unsigned repository!\n", repo->uri);
return 0;
}
/*
* Check for required objects in index-meta:
* - signature-by (string)
* - public-key (data)
* - public-key-size (number)
*/
xbps_dictionary_get_cstring_nocopy(repo->idxmeta, "signature-by", &signedby);
xbps_dictionary_get_uint16(repo->idxmeta, "public-key-size", &pubkey_size);
pubkey = xbps_dictionary_get(repo->idxmeta, "public-key");
if (signedby == NULL || pubkey_size == 0 ||
xbps_object_type(pubkey) != XBPS_TYPE_DATA) {
xbps_dbg_printf(repo->xhp,
"[repo] `%s': incomplete signed repository "
"(missing objs)\n", repo->uri);
rv = EINVAL;
goto out;
}
hexfp = xbps_pubkey2fp(repo->xhp, pubkey);
/*
* Check if the public key is alredy stored.
*/
rkeyfile = xbps_xasprintf("%s/keys/%s.plist", repo->xhp->metadir, hexfp);
repokeyd = xbps_plist_dictionary_from_file(repo->xhp, rkeyfile);
if (xbps_object_type(repokeyd) == XBPS_TYPE_DICTIONARY) {
xbps_dbg_printf(repo->xhp,
"[repo] `%s' public key already stored.\n", repo->uri);
goto out;
}
/*
* Notify the client and take appropiate action to import
* the repository public key. Pass back the public key openssh fingerprint
* to the client.
*/
import = xbps_set_cb_state(repo->xhp, XBPS_STATE_REPO_KEY_IMPORT, 0,
hexfp, "`%s' repository has been RSA signed by \"%s\"",
repo->uri, signedby);
if (import <= 0) {
rv = EAGAIN;
goto out;
}
p = strdup(rkeyfile);
dbkeyd = dirname(p);
assert(dbkeyd);
if (access(dbkeyd, R_OK|W_OK) == -1) {
rv = errno;
if (rv == ENOENT)
rv = xbps_mkpath(dbkeyd, 0755);
if (rv != 0) {
rv = errno;
xbps_dbg_printf(repo->xhp,
"[repo] `%s' cannot create %s: %s\n",
repo->uri, dbkeyd, strerror(errno));
free(p);
goto out;
}
}
free(p);
repokeyd = xbps_dictionary_create();
xbps_dictionary_set(repokeyd, "public-key", pubkey);
xbps_dictionary_set_uint16(repokeyd, "public-key-size", pubkey_size);
xbps_dictionary_set_cstring_nocopy(repokeyd, "signature-by", signedby);
if (!xbps_dictionary_externalize_to_file(repokeyd, rkeyfile)) {
rv = errno;
xbps_dbg_printf(repo->xhp,
"[repo] `%s' failed to externalize %s: %s\n",
repo->uri, rkeyfile, strerror(rv));
}
out:
if (hexfp)
free(hexfp);
if (repokeyd)
xbps_object_release(repokeyd);
if (rkeyfile)
free(rkeyfile);
return rv;
}
int HIDDEN
xbps_transaction_package_replace(struct xbps_handle *xhp)
{
xbps_array_t replaces, unsorted;
xbps_dictionary_t instd, reppkgd, filesd;
xbps_object_t obj, obj2;
xbps_object_iterator_t iter;
const char *pattern, *pkgver, *curpkgver;
char *buf, *pkgname, *curpkgname;
bool instd_auto, sr;
unsigned int i;
unsorted = xbps_dictionary_get(xhp->transd, "unsorted_deps");
for (i = 0; i < xbps_array_count(unsorted); i++) {
obj = xbps_array_get(unsorted, i);
replaces = xbps_dictionary_get(obj, "replaces");
if (replaces == NULL || xbps_array_count(replaces) == 0)
continue;
iter = xbps_array_iterator(replaces);
assert(iter);
while ((obj2 = xbps_object_iterator_next(iter)) != NULL) {
pattern = xbps_string_cstring_nocopy(obj2);
/*
* Find the installed package that matches the pattern
* to be replaced.
*/
if (((instd = xbps_pkgdb_get_pkg(xhp, pattern)) == NULL) &&
((instd = xbps_pkgdb_get_virtualpkg(xhp, pattern)) == NULL))
continue;
xbps_dictionary_get_cstring_nocopy(obj,
"pkgver", &pkgver);
xbps_dictionary_get_cstring_nocopy(instd,
"pkgver", &curpkgver);
pkgname = xbps_pkg_name(pkgver);
assert(pkgname);
curpkgname = xbps_pkg_name(curpkgver);
assert(curpkgver);
/*
* Check that we are not replacing the same package,
* due to virtual packages.
*/
if (strcmp(pkgname, curpkgname) == 0) {
free(pkgname);
free(curpkgname);
continue;
}
xbps_dbg_printf(xhp,
"Package `%s' will be replaced by `%s', "
"matched with `%s'\n", curpkgver, pkgver, pattern);
instd_auto = false;
xbps_dictionary_get_bool(instd,
"automatic-install", &instd_auto);
/*
* Package contains replaces="pkgpattern", but the
* package that should be replaced is also in the
* transaction and it's going to be updated.
*/
if ((reppkgd = xbps_find_pkg_in_array(unsorted, curpkgname))) {
xbps_dbg_printf(xhp,
"found replaced pkg "
"in transaction\n");
xbps_dictionary_set_bool(instd,
"remove-and-update", true);
xbps_dictionary_set_bool(reppkgd,
"automatic-install", instd_auto);
xbps_dictionary_set_bool(reppkgd,
"skip-obsoletes", true);
xbps_array_replace_dict_by_name(unsorted,
reppkgd, curpkgname);
}
/*
* If new package is providing a virtual package to the
* package that we want to replace we should respect
* the automatic-install object.
*/
if (xbps_match_virtual_pkg_in_dict(obj,
pattern, true) ||
xbps_match_virtual_pkg_in_dict(instd,
pkgname, false)) {
xbps_dictionary_set_bool(obj,
"automatic-install", instd_auto);
}
sr = false;
xbps_dictionary_get_bool(obj, "softreplace", &sr);
if (sr) {
xbps_dictionary_set_bool(obj,
"automatic-install", instd_auto);
xbps_dictionary_set_bool(instd,
"softreplace", true);
buf = xbps_xasprintf("%s/.%s.plist",
xhp->metadir, curpkgname);
filesd = xbps_dictionary_internalize_from_file(buf);
free(buf);
assert(filesd != NULL);
buf = xbps_xasprintf("%s/.%s.plist",
xhp->metadir, pkgname);
if (!xbps_dictionary_externalize_to_file(filesd, buf)) {
free(buf);
xbps_object_release(filesd);
xbps_object_iterator_release(iter);
free(pkgname);
free(curpkgname);
return errno;
}
xbps_object_release(filesd);
free(buf);
}
/*
* Add package dictionary into the transaction and mark
* it as to be "removed".
*/
xbps_dictionary_set_cstring_nocopy(instd,
"transaction", "remove");
xbps_array_add(unsorted, instd);
free(pkgname);
free(curpkgname);
}
xbps_object_iterator_release(iter);
}
return 0;
}
static int
create_pkg_metaplist(struct xbps_handle *xhp, const char *pkgname, const char *pkgver,
xbps_dictionary_t propsd, xbps_dictionary_t filesd,
const void *instbuf, const size_t instbufsiz,
const void *rembuf, const size_t rembufsiz)
{
xbps_array_t array;
xbps_dictionary_t pkg_metad;
xbps_data_t data;
char *buf;
int rv = 0;
xbps_dictionary_make_immutable(propsd);
pkg_metad = xbps_dictionary_copy_mutable(propsd);
/* Add objects from XBPS_PKGFILES */
array = xbps_dictionary_get(filesd, "files");
if (xbps_array_count(array))
xbps_dictionary_set(pkg_metad, "files", array);
array = xbps_dictionary_get(filesd, "conf_files");
if (xbps_array_count(array))
xbps_dictionary_set(pkg_metad, "conf_files", array);
array = xbps_dictionary_get(filesd, "links");
if (xbps_array_count(array))
xbps_dictionary_set(pkg_metad, "links", array);
array = xbps_dictionary_get(filesd, "dirs");
if (xbps_array_count(array))
xbps_dictionary_set(pkg_metad, "dirs", array);
/* Add install/remove scripts data objects */
if (instbuf != NULL) {
data = xbps_data_create_data(instbuf, instbufsiz);
assert(data);
xbps_dictionary_set(pkg_metad, "install-script", data);
xbps_object_release(data);
}
if (rembuf != NULL) {
data = xbps_data_create_data(rembuf, rembufsiz);
assert(data);
xbps_dictionary_set(pkg_metad, "remove-script", data);
xbps_object_release(data);
}
/* Remove unneeded objs from transaction */
xbps_dictionary_remove(pkg_metad, "remove-and-update");
xbps_dictionary_remove(pkg_metad, "transaction");
xbps_dictionary_remove(pkg_metad, "state");
xbps_dictionary_remove(pkg_metad, "pkgname");
xbps_dictionary_remove(pkg_metad, "version");
/*
* Externalize pkg dictionary to metadir.
*/
if (access(xhp->metadir, R_OK|X_OK) == -1) {
if (errno == ENOENT) {
xbps_mkpath(xhp->metadir, 0755);
} else {
return errno;
}
}
buf = xbps_xasprintf("%s/.%s.plist", XBPS_META_PATH, pkgname);
if (!xbps_dictionary_externalize_to_file(pkg_metad, buf)) {
rv = errno;
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
errno, pkgver,
"%s: [unpack] failed to write metadata file `%s': %s",
pkgver, buf, strerror(errno));
}
free(buf);
xbps_object_release(pkg_metad);
return rv;
}
