static NTSTATUS auth3_generate_session_info_pac(struct auth4_context *auth_ctx,
TALLOC_CTX *mem_ctx,
struct smb_krb5_context *smb_krb5_context,
DATA_BLOB *pac_blob,
const char *princ_name,
const struct tsocket_address *remote_address,
uint32_t session_info_flags,
struct auth_session_info **session_info)
{
TALLOC_CTX *tmp_ctx;
struct PAC_LOGON_INFO *logon_info = NULL;
struct netr_SamInfo3 *info3_copy = NULL;
bool is_mapped;
bool is_guest;
char *ntuser;
char *ntdomain;
char *username;
char *rhost;
struct passwd *pw;
NTSTATUS status;
int rc;
tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) {
return NT_STATUS_NO_MEMORY;
}
if (pac_blob) {
#ifdef HAVE_KRB5
status = kerberos_pac_logon_info(tmp_ctx, *pac_blob, NULL, NULL,
NULL, NULL, 0, &logon_info);
#else
status = NT_STATUS_ACCESS_DENIED;
#endif
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
}
rc = get_remote_hostname(remote_address,
&rhost,
tmp_ctx);
if (rc < 0) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
if (strequal(rhost, "UNKNOWN")) {
rhost = tsocket_address_inet_addr_string(remote_address,
tmp_ctx);
if (rhost == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
}
status = get_user_from_kerberos_info(tmp_ctx, rhost,
princ_name, logon_info,
&is_mapped, &is_guest,
&ntuser, &ntdomain,
&username, &pw);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to map kerberos principal to system user "
"(%s)\n", nt_errstr(status)));
status = NT_STATUS_ACCESS_DENIED;
goto done;
}
/* save the PAC data if we have it */
if (logon_info) {
status = create_info3_from_pac_logon_info(tmp_ctx,
logon_info,
&info3_copy);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
netsamlogon_cache_store(ntuser, info3_copy);
}
/* setup the string used by %U */
sub_set_smb_name(username);
/* reload services so that the new %U is taken into account */
lp_load_with_shares(get_dyn_CONFIGFILE());
status = make_session_info_krb5(mem_ctx,
ntuser, ntdomain, username, pw,
info3_copy, is_guest, is_mapped, NULL /* No session key for now, caller will sort it out */,
session_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to map kerberos pac to server info (%s)\n",
nt_errstr(status)));
status = NT_STATUS_ACCESS_DENIED;
goto done;
}
DEBUG(5, (__location__ "OK: user: %s domain: %s client: %s\n",
ntuser, ntdomain, rhost));
status = NT_STATUS_OK;
done:
TALLOC_FREE(tmp_ctx);
return status;
}
NTSTATUS auth3_check_password(struct auth4_context *auth4_context,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
void **server_returned_info,
DATA_BLOB *session_key, DATA_BLOB *lm_session_key)
{
struct auth_context *auth_context = talloc_get_type_abort(auth4_context->private_data,
struct auth_context);
struct auth_usersupplied_info *mapped_user_info = NULL;
struct auth_serversupplied_info *server_info;
NTSTATUS nt_status;
bool username_was_mapped;
/* The client has given us its machine name (which we only get over NBT transport).
We need to possibly reload smb.conf if smb.conf includes depend on the machine name. */
set_remote_machine_name(user_info->workstation_name, True);
/* setup the string used by %U */
/* sub_set_smb_name checks for weird internally */
sub_set_smb_name(user_info->client.account_name);
lp_load_with_shares(get_dyn_CONFIGFILE());
nt_status = make_user_info_map(talloc_tos(),
&mapped_user_info,
user_info->client.account_name,
user_info->client.domain_name,
user_info->workstation_name,
user_info->remote_host,
user_info->password.response.lanman.data ? &user_info->password.response.lanman : NULL,
user_info->password.response.nt.data ? &user_info->password.response.nt : NULL,
NULL, NULL, NULL,
AUTH_PASSWORD_RESPONSE);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
mapped_user_info->logon_parameters = user_info->logon_parameters;
mapped_user_info->flags = user_info->flags;
nt_status = auth_check_ntlm_password(mem_ctx,
auth_context,
mapped_user_info,
&server_info);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(5,("Checking NTLMSSP password for %s\\%s failed: %s\n",
user_info->client.domain_name,
user_info->client.account_name,
nt_errstr(nt_status)));
}
username_was_mapped = mapped_user_info->was_mapped;
TALLOC_FREE(mapped_user_info);
if (!NT_STATUS_IS_OK(nt_status)) {
nt_status = do_map_to_guest_server_info(mem_ctx,
nt_status,
user_info->client.account_name,
user_info->client.domain_name,
&server_info);
*server_returned_info = talloc_steal(mem_ctx, server_info);
return nt_status;
}
server_info->nss_token |= username_was_mapped;
/* Clear out the session keys, and pass them to the caller.
* They will not be used in this form again - instead the
* NTLMSSP code will decide on the final correct session key,
* and supply it to create_local_token() */
if (session_key) {
DEBUG(10, ("Got NT session key of length %u\n",
(unsigned int)server_info->session_key.length));
*session_key = server_info->session_key;
talloc_steal(mem_ctx, server_info->session_key.data);
server_info->session_key = data_blob_null;
}
if (lm_session_key) {
DEBUG(10, ("Got LM session key of length %u\n",
(unsigned int)server_info->lm_session_key.length));
*lm_session_key = server_info->lm_session_key;
talloc_steal(mem_ctx, server_info->lm_session_key.data);
server_info->lm_session_key = data_blob_null;
}
*server_returned_info = talloc_steal(mem_ctx, server_info);
return nt_status;
}
