2 * Copyright (C) Joerg Lenneis 2003
3 * Copyright (C) Frank Lahm 2010
4 * All Rights Reserved. See COPYING.
9 #endif /* HAVE_CONFIG_H */
17 #include <atalk/logger.h>
18 #include <atalk/cnid_dbd_private.h>
19 #include <atalk/cnid.h>
30 int add_cnid(DBD *dbd, struct cnid_dbd_rqst *rqst, struct cnid_dbd_rply *rply)
35 memset(&key, 0, sizeof(key));
36 memset(&data, 0, sizeof(data));
38 key.data = &rply->cnid;
39 key.size = sizeof(rply->cnid);
41 data.data = pack_cnid_data(rqst);
42 data.size = CNID_HEADER_LEN + rqst->namelen + 1;
43 memcpy(data.data, &rply->cnid, sizeof(rply->cnid));
46 if ((rc = dbif_put(dbd, DBIF_CNID, &key, &data, DB_NOOVERWRITE))) {
47 /* This could indicate a database error or that the key already exists
48 (because of DB_NOOVERWRITE). In that case we still look at some sort of
49 database corruption since that is not supposed to happen. */
53 rply->result = CNID_DBD_RES_ERR_DUPLCNID;
56 /* FIXME: Should that not be logged for case 1:? */
57 LOG(log_error, logtype_cnid, "add_cnid: duplicate %x %s", rply->cnid
58 , (char *)data.data + CNID_NAME_OFS);
60 rqst->cnid = rply->cnid;
61 rc = dbd_update(dbd, rqst, rply);
63 rply->result = CNID_DBD_RES_ERR_DB;
76 /* ---------------------- */
77 int get_cnid(DBD *dbd, struct cnid_dbd_rply *rply)
80 static char buf[ROOTINFO_DATALEN];
81 DBT rootinfo_key, rootinfo_data;
85 memset(&rootinfo_key, 0, sizeof(rootinfo_key));
86 memset(&rootinfo_data, 0, sizeof(rootinfo_data));
87 rootinfo_key.data = ROOTINFO_KEY;
88 rootinfo_key.size = ROOTINFO_KEYLEN;
91 if ((rc = dbif_get(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0)) < 0) {
92 rply->result = CNID_DBD_RES_ERR_DB;
96 /* no rootinfo key yet */
97 memcpy(buf, ROOTINFO_DATA, ROOTINFO_DATALEN);
100 memcpy(buf, (char *)rootinfo_data.data, ROOTINFO_DATALEN);
101 memcpy(&hint, buf + CNID_TYPE_OFS, sizeof(hint));
103 if (id < CNID_START - 1)
108 /* If we've hit the max CNID allowed, we return an error. CNID
109 * needs to be recycled before proceding. */
110 if (++id == CNID_INVALID) {
111 rply->result = CNID_DBD_RES_ERR_MAX;
115 rootinfo_data.data = buf;
116 rootinfo_data.size = ROOTINFO_DATALEN;
118 memcpy(buf + CNID_TYPE_OFS, &hint, sizeof(hint));
120 if (dbif_put(dbd, DBIF_CNID, &rootinfo_key, &rootinfo_data, 0) < 0) {
121 rply->result = CNID_DBD_RES_ERR_DB;
128 /* ------------------------ */
129 /* We need a nolookup version for `dbd` */
130 int dbd_add(DBD *dbd, struct cnid_dbd_rqst *rqst, struct cnid_dbd_rply *rply, int nolookup)
134 LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx) {start}",
135 ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
137 /* See if we have an entry already and return it if yes */
139 if (dbd_lookup(dbd, rqst, rply, 0) < 0) {
140 LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): error in dbd_lookup",
141 ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
145 if (rply->result == CNID_DBD_RES_OK) {
146 /* Found it. rply->cnid is the correct CNID now. */
147 LOG(log_debug, logtype_cnid, "dbd_add: dbd_lookup success --> CNID: %u", ntohl(rply->cnid));
152 LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): {adding to database ...}",
153 ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino);
156 if (get_cnid(dbd, rply) < 0) {
157 if (rply->result == CNID_DBD_RES_ERR_MAX) {
158 LOG(log_error, logtype_cnid, "dbd_add: FATAL: CNID database has reached its limit.");
159 /* This will cause an abort/rollback if transactions are used */
162 LOG(log_error, logtype_cnid, "dbd_add: Failed to compute CNID for %s, error reading/updating Rootkey", rqst->name);
167 if (add_cnid(dbd, rqst, rply) < 0) {
168 if (rply->result == CNID_DBD_RES_ERR_DUPLCNID) {
169 LOG(log_error, logtype_cnid, "dbd_add(DID: %u/\"%s\", dev/ino 0x%llx/0x%llx): Cannot add CNID: %u",
170 ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino, ntohl(rply->cnid));
171 /* abort/rollback, see above */
174 LOG(log_error, logtype_cnid, "dbd_add: Failed to add CNID for %s to database", rqst->name);
178 LOG(log_debug, logtype_cnid, "dbd_add(did:%u, '%s', dev/ino:0x%llx/0x%llx): Added with CNID: %u",
179 ntohl(rqst->did), rqst->name, (unsigned long long)rqst->dev, (unsigned long long)rqst->ino, ntohl(rply->cnid));
181 rply->result = CNID_DBD_RES_OK;