/*
- * $Id: dbd_add.c,v 1.6 2009-05-14 13:46:08 franklahm Exp $
- *
* Copyright (C) Joerg Lenneis 2003
+ * Copyright (C) Frank Lahm 2010
* All Rights Reserved. See COPYING.
*/
/* ---------------------- */
int get_cnid(DBD *dbd, struct cnid_dbd_rply *rply)
{
+ static cnid_t id;
+ static char buf[ROOTINFO_DATALEN];
DBT rootinfo_key, rootinfo_data;
int rc;
- cnid_t hint, id;
-
+ cnid_t hint;
+
memset(&rootinfo_key, 0, sizeof(rootinfo_key));
memset(&rootinfo_data, 0, sizeof(rootinfo_data));
rootinfo_key.data = ROOTINFO_KEY;
rootinfo_key.size = ROOTINFO_KEYLEN;
- if ((rc = dbif_get(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0)) <= 0) {
- rply->result = CNID_DBD_RES_ERR_DB;
- return -1;
+ if (id == 0) {
+ if ((rc = dbif_get(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0)) < 0) {
+ rply->result = CNID_DBD_RES_ERR_DB;
+ return -1;
+ }
+ if (rc == 0) {
+ /* no rootinfo key yet */
+ memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
+ id = CNID_START - 1;
+ } else {
+ memcpy(buf, (char *)rootinfo_data.data, ROOTINFO_DATALEN);
+ memcpy(&hint, buf + CNID_TYPE_OFS, sizeof(hint));
+ id = ntohl(hint);
+ if (id < CNID_START - 1)
+ id = CNID_START - 1;
+ }
}
- memcpy(&hint, (char *)rootinfo_data.data +CNID_TYPE_OFS, sizeof(hint));
- id = ntohl(hint);
+
/* If we've hit the max CNID allowed, we return an error. CNID
* needs to be recycled before proceding. */
if (++id == CNID_INVALID) {
return -1;
}
-#if 0
- memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
-#endif
+ rootinfo_data.data = buf;
rootinfo_data.size = ROOTINFO_DATALEN;
hint = htonl(id);
- memcpy((char *)rootinfo_data.data +CNID_TYPE_OFS, &hint, sizeof(hint));
+ memcpy(buf + CNID_TYPE_OFS, &hint, sizeof(hint));
if (dbif_put(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0) < 0) {
rply->result = CNID_DBD_RES_ERR_DB;
return 0;
}
-/* ---------------
-*/
-int dbd_stamp(DBD *dbd)
+/* ------------------------ */
+/* We need a nolookup version for `dbd` */
+int dbd_add(DBD *dbd, struct cnid_dbd_rqst *rqst, struct cnid_dbd_rply *rply, int nolookup)
{
- DBT rootinfo_key, rootinfo_data;
- cnid_t hint;
- char buf[ROOTINFO_DATALEN];
- char stamp[CNID_DEV_LEN];
+ rply->namelen = 0;
- memset(&rootinfo_key, 0, sizeof(rootinfo_key));
- memset(&rootinfo_data, 0, sizeof(rootinfo_data));
- rootinfo_key.data = ROOTINFO_KEY;
- rootinfo_key.size = ROOTINFO_KEYLEN;
+ LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx) {start}",
+ ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
- switch (dbif_get(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0)) {
- case 0:
- hint = htonl(CNID_START);
- memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
- rootinfo_data.data = buf;
- rootinfo_data.size = ROOTINFO_DATALEN;
- if (dbif_stamp(dbd, stamp, CNID_DEV_LEN) < 0) {
+ /* See if we have an entry already and return it if yes */
+ if (! nolookup) {
+ if (dbd_lookup(dbd, rqst, rply, 0) < 0) {
+ LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): error in dbd_lookup",
+ ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
return -1;
}
- memcpy((char *)rootinfo_data.data + CNID_TYPE_OFS, &hint, sizeof(hint));
- memcpy((char *)rootinfo_data.data + CNID_DEV_OFS, stamp, sizeof(stamp));
- if (dbif_put(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0) < 0) {
- return -1;
+
+ if (rply->result == CNID_DBD_RES_OK) {
+ /* Found it. rply->cnid is the correct CNID now. */
+ LOG(log_debug, logtype_cnid, "dbd_add: dbd_lookup success --> CNID: %u", ntohl(rply->cnid));
+ return 1;
}
- return 0;
-
- case 1: /* we already have one */
- return 0;
- default:
- return -1;
}
- return -1;
-}
-/* ------------------------ */
-int dbd_add(DBD *dbd, struct cnid_dbd_rqst *rqst, struct cnid_dbd_rply *rply)
-{
- rply->namelen = 0;
+ LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): {adding to database ...}",
+ ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
- /* See if we have an entry already and return it if yes */
- if (dbd_lookup(dbd, rqst, rply) < 0)
- return -1;
-
- if (rply->result == CNID_DBD_RES_OK) {
- /* Found it. rply->cnid is the correct CNID now. */
- LOG(log_debug, logtype_cnid, "dbd_add: dbd_lookup success, cnid %u", ntohl(rply->cnid));
- return 1;
- }
if (get_cnid(dbd, rply) < 0) {
if (rply->result == CNID_DBD_RES_ERR_MAX) {
if (add_cnid(dbd, rqst, rply) < 0) {
if (rply->result == CNID_DBD_RES_ERR_DUPLCNID) {
- LOG(log_error, logtype_cnid, "dbd_add: Cannot add CNID %u. Corrupt/invalid Rootkey?.", ntohl(rply->cnid));
+ LOG(log_error, logtype_cnid, "dbd_add(DID: %u/\"%s\", dev/ino 0x%llx/0x%llx): Cannot add CNID: %u",
+ ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino, ntohl(rply->cnid));
/* abort/rollback, see above */
return 0;
} else {
return -1;
}
}
- LOG(log_debug, logtype_cnid, "dbd_add: Added dev/ino 0x%llx/0x%llx did %u name %s cnid %u",
- (unsigned long long)rqst->dev, (unsigned long long)rqst->ino,
- ntohl(rqst->did), rqst->name, ntohl(rply->cnid));
+ LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): Added with CNID: %u",
+ ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino, ntohl(rply->cnid));
rply->result = CNID_DBD_RES_OK;
return 1;
projects / netatalk.git / blobdiff