2 Unix SMB/CIFS implementation.
3 Copyright (C) Andrew Tridgell 1992-2001
4 Copyright (C) Andrew Bartlett 2002
5 Copyright (C) Rafal Szczesniak 2002
6 Copyright (C) Tim Potter 2001
7 Copyright (C) Jelmer Vernooij 2005
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* the Samba secrets database stores any generated, private information
25 such as the local SID and machine trust password */
28 #include "lib/tdb/include/tdb.h"
29 #include "lib/samba3/samba3.h"
30 #include "system/filesys.h"
31 #include "librpc/gen_ndr/security.h"
32 #include "lib/tdb/include/tdbutil.h"
33 #include "auth/credentials/credentials.h"
36 * Unpack SID into a pointer
38 * @param pack_buf pointer to buffer with packed representation
39 * @param bufsize size of the buffer
40 * @param sid pointer to sid structure to be filled with unpacked data
42 * @return size of structure unpacked from buffer
44 static size_t tdb_sid_unpack(TDB_CONTEXT *tdb, char* pack_buf, int bufsize, struct dom_sid* sid)
48 if (!sid || !pack_buf) return -1;
50 len += tdb_unpack(tdb, pack_buf + len, bufsize - len, "bb",
51 &sid->sid_rev_num, &sid->num_auths);
53 for (idx = 0; idx < 6; idx++) {
54 len += tdb_unpack(tdb, pack_buf + len, bufsize - len, "b", &sid->id_auth[idx]);
57 for (idx = 0; idx < 15; idx++) {
58 len += tdb_unpack(tdb, pack_buf + len, bufsize - len, "d", &sid->sub_auths[idx]);
64 static struct samba3_domainsecrets *secrets_find_domain(TALLOC_CTX *ctx, struct samba3_secrets *db, const char *key)
68 for (i = 0; i < db->domain_count; i++)
70 if (!strcasecmp_m(db->domains[i].name, key))
71 return &db->domains[i];
74 db->domains = talloc_realloc(ctx, db->domains, struct samba3_domainsecrets, db->domain_count+1);
75 ZERO_STRUCT(db->domains[db->domain_count]);
76 db->domains[db->domain_count].name = talloc_strdup(db->domains, key);
80 return &db->domains[db->domain_count-1];
83 static NTSTATUS ipc_password (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
85 cli_credentials_set_password(db->ipc_cred, (const char *)vbuf.dptr, CRED_SPECIFIED);
89 static NTSTATUS ipc_username (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
91 cli_credentials_set_username(db->ipc_cred, (const char *)vbuf.dptr, CRED_SPECIFIED);
95 static NTSTATUS ipc_domain (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
97 cli_credentials_set_domain(db->ipc_cred, (const char *)vbuf.dptr, CRED_SPECIFIED);
101 static NTSTATUS domain_sid (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
103 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
104 domainsec->sid.sub_auths = talloc_array(ctx, uint32_t, 15);
105 tdb_sid_unpack(tdb, (char *)vbuf.dptr, vbuf.dsize, &domainsec->sid);
109 static NTSTATUS domain_guid (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
111 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
112 memcpy(&domainsec->guid, vbuf.dptr, vbuf.dsize);
116 static NTSTATUS ldap_bind_pw (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
118 struct samba3_ldappw pw;
119 pw.dn = talloc_strdup(ctx, key);
120 pw.password = talloc_strdup(ctx, (const char *)vbuf.dptr);
122 db->ldappws = talloc_realloc(ctx, db->ldappws, struct samba3_ldappw, db->ldappw_count+1);
123 db->ldappws[db->ldappw_count] = pw;
128 static NTSTATUS afs_keyfile (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
130 struct samba3_afs_keyfile keyfile;
131 memcpy(&keyfile, vbuf.dptr, vbuf.dsize);
132 keyfile.cell = talloc_strdup(ctx, key);
134 db->afs_keyfiles = talloc_realloc(ctx, db->afs_keyfiles, struct samba3_afs_keyfile, db->afs_keyfile_count+1);
135 db->afs_keyfiles[db->afs_keyfile_count] = keyfile;
136 db->afs_keyfile_count++;
141 static NTSTATUS machine_sec_channel_type (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
143 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
145 domainsec->sec_channel_type = IVAL(vbuf.dptr, 0);
149 static NTSTATUS machine_last_change_time (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
151 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
152 domainsec->last_change_time = IVAL(vbuf.dptr, 0);
156 static NTSTATUS machine_password (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
158 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
159 domainsec->plaintext_pw = talloc_strdup(ctx, (const char *)vbuf.dptr);
163 static NTSTATUS machine_acc (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
165 struct samba3_domainsecrets *domainsec = secrets_find_domain(ctx, db, key);
167 memcpy(&domainsec->hash_pw, vbuf.dptr, vbuf.dsize);
172 static NTSTATUS random_seed (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
178 static NTSTATUS domtrust_acc (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db)
181 struct samba3_trusted_dom_pass pass;
185 return NT_STATUS_UNSUCCESSFUL;
187 /* unpack unicode domain name and plaintext password */
188 len += tdb_unpack(tdb, (char *)vbuf.dptr, vbuf.dsize - len, "d", &pass.uni_name_len);
190 for (idx = 0; idx < 32; idx++)
191 len += tdb_unpack(tdb, (char *)(vbuf.dptr + len), vbuf.dsize - len, "w", &pass.uni_name[idx]);
193 len += tdb_unpack(tdb, (char *)(vbuf.dptr + len), vbuf.dsize - len, "d", &pass_len);
194 pass.pass = talloc_strdup(ctx, (char *)(vbuf.dptr+len));
195 len += strlen((const char *)vbuf.dptr)+1;
196 len += tdb_unpack(tdb, (char *)(vbuf.dptr + len), vbuf.dsize - len, "d", &pass.mod_time);
198 pass.domain_sid.sub_auths = talloc_array(ctx, uint32_t, 15);
199 /* unpack domain sid */
200 len += tdb_sid_unpack(tdb, (char *)(vbuf.dptr + len), vbuf.dsize - len, &pass.domain_sid);
202 /* FIXME: Add to list */
207 static const struct {
209 NTSTATUS (*handler) (TDB_CONTEXT *tdb, const char *key, TDB_DATA vbuf, TALLOC_CTX *ctx, struct samba3_secrets *db);
210 } secrets_handlers[] = {
211 { "SECRETS/AUTH_PASSWORD", ipc_password },
212 { "SECRETS/AUTH_DOMAIN", ipc_domain },
213 { "SECRETS/AUTH_USER", ipc_username },
214 { "SECRETS/SID/", domain_sid },
215 { "SECRETS/DOMGUID/", domain_guid },
216 { "SECRETS/LDAP_BIND_PW/", ldap_bind_pw },
217 { "SECRETS/AFS_KEYFILE/", afs_keyfile },
218 { "SECRETS/MACHINE_SEC_CHANNEL_TYPE/", machine_sec_channel_type },
219 { "SECRETS/MACHINE_LAST_CHANGE_TIME/", machine_last_change_time },
220 { "SECRETS/MACHINE_PASSWORD/", machine_password },
221 { "SECRETS/$MACHINE.ACC/", machine_acc },
222 { "SECRETS/$DOMTRUST.ACC/", domtrust_acc },
223 { "INFO/random_seed", random_seed },
227 NTSTATUS samba3_read_secrets(const char *fname, TALLOC_CTX *ctx, struct samba3_secrets *db)
229 TDB_CONTEXT *tdb = tdb_open(fname, 0, TDB_DEFAULT, O_RDONLY, 0600);
233 DEBUG(0,("Failed to open %s\n", fname));
234 return NT_STATUS_UNSUCCESSFUL;
239 db->ipc_cred = cli_credentials_init(ctx);
241 for (kbuf = tdb_firstkey(tdb); kbuf.dptr; kbuf = tdb_nextkey(tdb, kbuf))
245 vbuf = tdb_fetch(tdb, kbuf);
247 for (i = 0; secrets_handlers[i].prefix; i++) {
248 if (!strncmp((const char *)kbuf.dptr, secrets_handlers[i].prefix, strlen(secrets_handlers[i].prefix))) {
249 key = talloc_strndup(ctx, (const char *)(kbuf.dptr+strlen(secrets_handlers[i].prefix)), kbuf.dsize-strlen(secrets_handlers[i].prefix));
250 secrets_handlers[i].handler(tdb, key, vbuf, ctx, db);
256 if (!secrets_handlers[i].prefix) {
257 DEBUG(0, ("Unable to find handler for string %s\n", kbuf.dptr));