#include <atalk/unix.h>
#include "directory.h"
+#include "dircache.h"
#include "desktop.h"
#include "volume.h"
#include "fork.h"
(1 << FILPBIT_FNUM) |\
(1 << FILPBIT_UNIXPR)))
-/* -------------------------- */
-u_int32_t get_id(const struct vol *vol, struct adouble *adp, const struct stat *st,
- const cnid_t did, char *upath, const int len)
+/*!
+ * @brief Get CNID for did/upath args both from database and adouble file
+ *
+ * 1. Get the objects CNID as stored in its adouble file
+ * 2. Get the objects CNID from the database
+ * 3. If there's a problem with a "dbd" database, fallback to "tdb" in memory
+ * 4. In case 2 and 3 differ, store 3 in the adouble file
+ *
+ * @param vol (rw) volume
+ * @param adp (rw) adouble struct of object upath, might be NULL
+ * @param st (r) stat of upath, must NOT be NULL
+ * @param did (r) parent CNID of upath
+ * @param upath (r) name of object
+ * @param len (r) strlen of upath
+ */
+uint32_t get_id(struct vol *vol,
+ struct adouble *adp,
+ const struct stat *st,
+ const cnid_t did,
+ const char *upath,
+ const int len)
{
+ static int first = 1; /* mark if this func is called the first time */
u_int32_t adcnid;
u_int32_t dbcnid = CNID_INVALID;
+restart:
if (vol->v_cdb != NULL) {
/* prime aint with what we think is the cnid, set did to zero for
catching moved files */
- adcnid = ad_getid(adp, st->st_dev, st->st_ino, 0, vol->v_stamp);
+ adcnid = ad_getid(adp, st->st_dev, st->st_ino, 0, vol->v_stamp); /* (1) */
- dbcnid = cnid_add(vol->v_cdb, st, did, upath, len, adcnid);
+ dbcnid = cnid_add(vol->v_cdb, st, did, upath, len, adcnid); /* (2) */
/* Throw errors if cnid_add fails. */
if (dbcnid == CNID_INVALID) {
switch (errno) {
case CNID_ERR_PARAM:
LOG(log_error, logtype_afpd, "get_id: Incorrect parameters passed to cnid_add");
afp_errno = AFPERR_PARAM;
- return CNID_INVALID;
+ goto exit;
case CNID_ERR_PATH:
afp_errno = AFPERR_PARAM;
- return CNID_INVALID;
+ goto exit;
default:
+ /* Close CNID backend if "dbd" and switch to temp in-memory "tdb" */
+ /* we have to do it here for "dbd" because it uses "lazy opening" */
+ /* In order to not end in a loop somehow with goto restart below */
+ /* */
+ if (first && (strcmp(vol->v_cnidscheme, "dbd") == 0)) { /* (3) */
+ cnid_close(vol->v_cdb);
+ free(vol->v_cnidscheme);
+ vol->v_cnidscheme = strdup("tdb");
+
+ int flags = CNID_FLAG_MEMORY;
+ if ((vol->v_flags & AFPVOL_NODEV)) {
+ flags |= CNID_FLAG_NODEV;
+ }
+ LOG(log_error, logtype_afpd, "Reopen volume %s using in memory temporary CNID DB.",
+ vol->v_path);
+ vol->v_cdb = cnid_open(vol->v_path, vol->v_umask, "tdb", flags, NULL, NULL);
+ if (vol->v_cdb) {
+ /* deactivate cnid caching/storing in AppleDouble files and set ro mode*/
+ vol->v_flags &= ~AFPVOL_CACHE;
+ vol->v_flags |= AFPVOL_RO;
+#ifdef SERVERTEXT
+ /* kill ourself with SIGUSR2 aka msg pending */
+ setmessage("Something wrong with the volume's CNID DB, using temporary CNID DB instead."
+ "Check server messages for details. Switching to read-only mode.");
+ kill(getpid(), SIGUSR2);
+#endif
+ goto restart; /* not try again with the temp CNID db */
+ } else {
+#ifdef SERVERTEXT
+ setmessage("Something wrong with the volume's CNID DB, using temporary CNID DB failed too!"
+ "Check server messages for details, can't recover from this state!");
+#endif
+ }
+ }
afp_errno = AFPERR_MISC;
- return CNID_INVALID;
+ goto exit;
}
}
- else if (adp && (adcnid != dbcnid)) {
+ else if (adp && (adcnid != dbcnid)) { /* 4 */
/* Update the ressource fork. For a folder adp is always null */
- LOG(log_debug, logtype_afpd, "get_id: calling ad_setid. adcnid: %u, dbcnid: %u", htonl(adcnid), htonl(dbcnid));
+ LOG(log_note, logtype_afpd, "get_id: calling ad_setid(old: %u, new: %u)",
+ htonl(adcnid), htonl(dbcnid));
if (ad_setid(adp, st->st_dev, st->st_ino, dbcnid, did, vol->v_stamp)) {
ad_flush(adp);
}
}
}
+
+exit:
+ first = 0;
return dbcnid;
}
struct stat *st;
struct maccess ma;
-
upath = path->u_name;
st = &path->st;
-
data = buf;
if ( ((bitmap & ( (1 << FILPBIT_FINFO)|(1 << FILPBIT_LNAME)|(1 <<FILPBIT_PDINFO) ) ) && !path->m_name)
|| (bitmap & ( (1 << FILPBIT_LNAME) ) && utf8_encoding()) /* FIXME should be m_name utf8 filename */
|| (bitmap & (1 << FILPBIT_FNUM))) {
- if (!path->id)
- id = get_id(vol, adp, st, dir->d_did, upath, strlen(upath));
- else
+ if (!path->id) {
+ struct dir *cachedfile;
+ int len = strlen(upath);
+ if ((cachedfile = dircache_search_by_name(vol, dir, upath, len)) != NULL)
+ id = cachedfile->d_did;
+ else {
+ id = get_id(vol, adp, st, dir->d_did, upath, len);
+
+ /* Add it to the cache */
+ LOG(log_debug, logtype_afpd, "getmetadata: caching: did:%u, \"%s\", cnid:%u",
+ ntohl(dir->d_did), upath, ntohl(id));
+
+ /* Get macname from unixname first */
+ if (path->m_name == NULL) {
+ if ((path->m_name = utompath(vol, upath, id, utf8_encoding())) == NULL) {
+ LOG(log_error, logtype_afpd, "getmetadata: utompath error");
+ exit(EXITERR_SYS);
+ }
+ }
+
+ if ((cachedfile = dir_new(path->m_name, upath, vol, dir->d_did, id, NULL)) == NULL) {
+ LOG(log_error, logtype_afpd, "getmetadata: error from dir_new");
+ exit(EXITERR_SYS);
+ }
+ if ((dircache_add(cachedfile)) != 0) {
+ LOG(log_error, logtype_afpd, "getmetadata: fatal dircache error");
+ exit(EXITERR_SYS);
+ }
+ }
+ } else {
id = path->id;
+ }
+
if (id == CNID_INVALID)
return afp_errno;
+
if (!path->m_name) {
path->m_name = utompath(vol, upath, id, utf8_encoding());
}
projects / netatalk.git / blobdiff