diff options
Diffstat (limited to 'source4/libnet/libnet_samdump_keytab.c')
| -rw-r--r-- | source4/libnet/libnet_samdump_keytab.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/source4/libnet/libnet_samdump_keytab.c b/source4/libnet/libnet_samdump_keytab.c new file mode 100644 index 0000000000..0c4d3e5c59 --- /dev/null +++ b/source4/libnet/libnet_samdump_keytab.c @@ -0,0 +1,122 @@ +/* + Unix SMB/CIFS implementation. + + Extract kerberos keys from a remote SamSync server + + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + + +#include "includes.h" +#include "libnet/libnet.h" +#include "system/kerberos.h" +#include "auth/credentials/credentials.h" +#include "auth/credentials/credentials_krb5.h" +#include "param/param.h" +#include "lib/events/events.h" + +static NTSTATUS samdump_keytab_handle_user(TALLOC_CTX *mem_ctx, + struct event_context *event_ctx, + struct loadparm_context *lp_ctx, + const char *keytab_name, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_USER *user = delta->delta_union.user; + const char *username = user->account_name.string; + struct cli_credentials *credentials; + int ret; + + if (!user->nt_password_present) { + /* We can't do anything here */ + return NT_STATUS_OK; + } + + credentials = cli_credentials_init(mem_ctx); + if (!credentials) { + return NT_STATUS_NO_MEMORY; + } + cli_credentials_set_conf(credentials, lp_ctx); + cli_credentials_set_username(credentials, username, CRED_SPECIFIED); + + /* We really should consult ldap in the main SamSync code, and + * pass a value in here */ + cli_credentials_set_kvno(credentials, 0); + cli_credentials_set_nt_hash(credentials, &user->ntpassword, CRED_SPECIFIED); + ret = cli_credentials_set_keytab_name(credentials, event_ctx, lp_ctx, keytab_name, CRED_SPECIFIED); + if (ret) { + return NT_STATUS_UNSUCCESSFUL; + } + + ret = cli_credentials_update_keytab(credentials, event_ctx, lp_ctx); + if (ret) { + return NT_STATUS_UNSUCCESSFUL; + } + + return NT_STATUS_OK; +} + +static NTSTATUS libnet_samdump_keytab_fn(TALLOC_CTX *mem_ctx, + void *private, + enum netr_SamDatabaseID database, + struct netr_DELTA_ENUM *delta, + char **error_string) +{ + NTSTATUS nt_status = NT_STATUS_OK; + const char *keytab_name = private; + + *error_string = NULL; + switch (delta->delta_type) { + case NETR_DELTA_USER: + { + /* not interested in builtin users */ + if (database == SAM_DATABASE_DOMAIN) { + nt_status = samdump_keytab_handle_user(mem_ctx, + event_context_find(mem_ctx), + global_loadparm, + keytab_name, + delta); + break; + } + } + default: + /* Can't dump them all right now */ + break; + } + return nt_status; +} + +NTSTATUS libnet_SamDump_keytab(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump_keytab *r) +{ + NTSTATUS nt_status; + struct libnet_SamSync r2; + + r2.out.error_string = NULL; + r2.in.binding_string = r->in.binding_string; + r2.in.rid_crypt = true; + r2.in.init_fn = NULL; + r2.in.delta_fn = libnet_samdump_keytab_fn; + r2.in.fn_ctx = discard_const(r->in.keytab_name); + r2.in.machine_account = r->in.machine_account; + nt_status = libnet_SamSync_netlogon(ctx, mem_ctx, &r2); + r->out.error_string = r2.out.error_string; + talloc_steal(mem_ctx, r->out.error_string); + + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + return nt_status; +} |