diff options
Diffstat (limited to 'source4/libnet/libnet_samdump_keytab.c')
| -rw-r--r-- | source4/libnet/libnet_samdump_keytab.c | 144 |
1 files changed, 144 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..deaa282801 --- /dev/null +++ b/source4/libnet/libnet_samdump_keytab.c @@ -0,0 +1,144 @@ +/* + 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 2 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + + +#include "includes.h" +#include "libnet/libnet.h" +#include "librpc/gen_ndr/ndr_netlogon.h" +#include "librpc/gen_ndr/ndr_samr.h" +#include "system/kerberos.h" +#include "auth/kerberos/kerberos.h" + +static NTSTATUS samdump_keytab_handle_user(TALLOC_CTX *mem_ctx, + const char *keytab_name, + struct creds_CredentialState *creds, + 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); + 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, keytab_name, CRED_SPECIFIED); + if (ret) { + return NT_STATUS_UNSUCCESSFUL; + } + + ret = cli_credentials_update_keytab(credentials); + if (ret) { + return NT_STATUS_UNSUCCESSFUL; + } + + return NT_STATUS_OK; +} + +static NTSTATUS libnet_samdump_keytab_fn(TALLOC_CTX *mem_ctx, + void *private, + struct creds_CredentialState *creds, + 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, + keytab_name, + creds, + delta); + break; + } + } + default: + /* Can't dump them all right now */ + break; + } + return nt_status; +} + +static NTSTATUS libnet_SamDump_keytab_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump_keytab *r) +{ + NTSTATUS nt_status; + struct libnet_SamSync r2; + + r2.error_string = NULL; + r2.delta_fn = libnet_samdump_keytab_fn; + r2.fn_ctx = r->keytab_name; + r2.machine_account = NULL; /* TODO: Create a machine account, fill this in, and the delete it */ + nt_status = libnet_SamSync_netlogon(ctx, mem_ctx, &r2); + r->error_string = r2.error_string; + + if (!NT_STATUS_IS_OK(nt_status)) { + return nt_status; + } + + return nt_status; +} + + + +static NTSTATUS libnet_SamDump_keytab_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump_keytab *r) +{ + NTSTATUS nt_status; + struct libnet_SamDump_keytab r2; + r2.level = LIBNET_SAMDUMP_NETLOGON; + r2.error_string = NULL; + r2.keytab_name = r->keytab_name; + nt_status = libnet_SamDump_keytab(ctx, mem_ctx, &r2); + r->error_string = r2.error_string; + + return nt_status; +} + +NTSTATUS libnet_SamDump_keytab(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamDump_keytab *r) +{ + switch (r->level) { + case LIBNET_SAMDUMP_GENERIC: + return libnet_SamDump_keytab_generic(ctx, mem_ctx, r); + case LIBNET_SAMDUMP_NETLOGON: + return libnet_SamDump_keytab_netlogon(ctx, mem_ctx, r); + } + + return NT_STATUS_INVALID_LEVEL; +} |