#include "includes.h"
#include "auth.h"
-#include "smbd/globals.h"
+#include "../lib/tsocket/tsocket.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
Returns a const char of length 8 bytes.
****************************************************************************/
-static NTSTATUS get_ntlm_challenge(struct auth_context *auth_context,
- uint8_t chal[8])
+NTSTATUS auth_get_ntlm_challenge(struct auth_context *auth_context,
+ uint8_t chal[8])
{
- DATA_BLOB challenge = data_blob_null;
- const char *challenge_set_by = NULL;
- auth_methods *auth_method;
+ uchar tmp[8];
+
if (auth_context->challenge.length) {
DEBUG(5, ("get_ntlm_challenge (auth subsystem): returning previous challenge by module %s (normal)\n",
return NT_STATUS_OK;
}
- auth_context->challenge_may_be_modified = False;
-
- for (auth_method = auth_context->auth_method_list; auth_method; auth_method = auth_method->next) {
- if (auth_method->get_chal == NULL) {
- DEBUG(5, ("auth_get_challenge: module %s did not want to specify a challenge\n", auth_method->name));
- continue;
- }
-
- DEBUG(5, ("auth_get_challenge: getting challenge from module %s\n", auth_method->name));
- if (challenge_set_by != NULL) {
- DEBUG(1, ("auth_get_challenge: CONFIGURATION ERROR: authentication method %s has already specified a challenge. Challenge by %s ignored.\n",
- challenge_set_by, auth_method->name));
- continue;
- }
-
- challenge = auth_method->get_chal(auth_context, &auth_method->private_data,
- auth_context);
- if (!challenge.length) {
- DEBUG(3, ("auth_get_challenge: getting challenge from authentication method %s FAILED.\n",
- auth_method->name));
- } else {
- DEBUG(5, ("auth_get_challenge: successfully got challenge from module %s\n", auth_method->name));
- auth_context->challenge = challenge;
- challenge_set_by = auth_method->name;
- auth_context->challenge_set_method = auth_method;
- }
- }
-
- if (!challenge_set_by) {
- uchar tmp[8];
+ generate_random_buffer(tmp, sizeof(tmp));
+ auth_context->challenge = data_blob_talloc(auth_context,
+ tmp, sizeof(tmp));
- generate_random_buffer(tmp, sizeof(tmp));
- auth_context->challenge = data_blob_talloc(auth_context,
- tmp, sizeof(tmp));
-
- challenge_set_by = "random";
- auth_context->challenge_may_be_modified = True;
- }
-
- DEBUG(5, ("auth_context challenge created by %s\n", challenge_set_by));
- DEBUG(5, ("challenge is: \n"));
- dump_data(5, auth_context->challenge.data, auth_context->challenge.length);
-
- SMB_ASSERT(auth_context->challenge.length == 8);
-
- auth_context->challenge_set_by=challenge_set_by;
+ auth_context->challenge_set_by = "random";
memcpy(chal, auth_context->challenge.data, 8);
return NT_STATUS_OK;
* filled in, either at creation or by calling the challenge geneation
* function auth_get_challenge().
*
- * @param server_info If successful, contains information about the authentication,
- * including a struct samu struct describing the user.
+ * @param pserver_info If successful, contains information about the authentication,
+ * including a struct samu struct describing the user.
+ *
+ * @param pauthoritative Indicates if the result should be treated as final
+ * result.
*
* @return An NTSTATUS with NT_STATUS_OK or an appropriate error.
*
**/
-
-static NTSTATUS check_ntlm_password(const struct auth_context *auth_context,
- const struct auth_usersupplied_info *user_info,
- struct auth_serversupplied_info **server_info)
+NTSTATUS auth_check_ntlm_password(TALLOC_CTX *mem_ctx,
+ const struct auth_context *auth_context,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **pserver_info,
+ uint8_t *pauthoritative)
{
+ TALLOC_CTX *frame;
+ const char *auth_method_name = "";
/* if all the modules say 'not for me' this is reasonable */
- NTSTATUS nt_status = NT_STATUS_NO_SUCH_USER;
+ NTSTATUS nt_status = NT_STATUS_NOT_IMPLEMENTED;
const char *unix_username;
auth_methods *auth_method;
- TALLOC_CTX *mem_ctx;
+ struct auth_serversupplied_info *server_info = NULL;
+ struct dom_sid sid = {0};
- if (!user_info || !auth_context || !server_info)
+ if (user_info == NULL || auth_context == NULL || pserver_info == NULL) {
return NT_STATUS_LOGON_FAILURE;
+ }
+
+ frame = talloc_stackframe();
+
+ *pauthoritative = 1;
DEBUG(3, ("check_ntlm_password: Checking password for unmapped user [%s]\\[%s]@[%s] with the new password interface\n",
user_info->client.domain_name, user_info->client.account_name, user_info->workstation_name));
if (auth_context->challenge.length != 8) {
DEBUG(0, ("check_ntlm_password: Invalid challenge stored for this auth context - cannot continue\n"));
- return NT_STATUS_LOGON_FAILURE;
+ nt_status = NT_STATUS_LOGON_FAILURE;
+ goto fail;
}
if (auth_context->challenge_set_by)
#endif
/* This needs to be sorted: If it doesn't match, what should we do? */
- if (!check_domain_match(user_info->client.account_name, user_info->mapped.domain_name))
- return NT_STATUS_LOGON_FAILURE;
+ if (!check_domain_match(user_info->client.account_name,
+ user_info->mapped.domain_name)) {
+ nt_status = NT_STATUS_LOGON_FAILURE;
+ goto fail;
+ }
for (auth_method = auth_context->auth_method_list;auth_method; auth_method = auth_method->next) {
- NTSTATUS result;
- mem_ctx = talloc_init("%s authentication for user %s\\%s", auth_method->name,
- user_info->mapped.domain_name, user_info->client.account_name);
+ auth_method_name = auth_method->name;
- result = auth_method->auth(auth_context, auth_method->private_data, mem_ctx, user_info, server_info);
+ nt_status = auth_method->auth(auth_context,
+ auth_method->private_data,
+ talloc_tos(),
+ user_info,
+ &server_info);
- /* check if the module did anything */
- if ( NT_STATUS_V(result) == NT_STATUS_V(NT_STATUS_NOT_IMPLEMENTED) ) {
- DEBUG(10,("check_ntlm_password: %s had nothing to say\n", auth_method->name));
- talloc_destroy(mem_ctx);
- continue;
+ if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_NOT_IMPLEMENTED)) {
+ break;
}
- nt_status = result;
-
- if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG(3, ("check_ntlm_password: %s authentication for user [%s] succeeded\n",
- auth_method->name, user_info->client.account_name));
- } else {
- DEBUG(5, ("check_ntlm_password: %s authentication for user [%s] FAILED with error %s\n",
- auth_method->name, user_info->client.account_name, nt_errstr(nt_status)));
- }
+ DBG_DEBUG("%s had nothing to say\n", auth_method->name);
+ }
- talloc_destroy(mem_ctx);
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NOT_IMPLEMENTED)) {
+ *pauthoritative = 0;
+ nt_status = NT_STATUS_NO_SUCH_USER;
+ }
- if ( NT_STATUS_IS_OK(nt_status))
- {
- break;
- }
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DBG_INFO("%s authentication for user [%s] FAILED with "
+ "error %s, authoritative=%u\n",
+ auth_method_name,
+ user_info->client.account_name,
+ nt_errstr(nt_status),
+ *pauthoritative);
+ goto fail;
}
- /* successful authentication */
-
- if (NT_STATUS_IS_OK(nt_status)) {
- unix_username = (*server_info)->unix_name;
- if (!(*server_info)->guest) {
- /* We might not be root if we are an RPC call */
- become_root();
- nt_status = smb_pam_accountcheck(
- unix_username,
- smbd_server_conn->client_id.name);
- unbecome_root();
-
- if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG(5, ("check_ntlm_password: PAM Account for user [%s] succeeded\n",
- unix_username));
- } else {
- DEBUG(3, ("check_ntlm_password: PAM Account for user [%s] FAILED with error %s\n",
- unix_username, nt_errstr(nt_status)));
- }
+ DBG_NOTICE("%s authentication for user [%s] succeeded\n",
+ auth_method_name, user_info->client.account_name);
+
+ unix_username = server_info->unix_name;
+
+ /* We skip doing this step if the caller asked us not to */
+ if (!(user_info->flags & USER_INFO_INFO3_AND_NO_AUTHZ)
+ && !(server_info->guest)) {
+ const char *rhost;
+
+ if (tsocket_address_is_inet(user_info->remote_host, "ip")) {
+ rhost = tsocket_address_inet_addr_string(
+ user_info->remote_host, talloc_tos());
+ if (rhost == NULL) {
+ nt_status = NT_STATUS_NO_MEMORY;
+ goto fail;
+ }
+ } else {
+ rhost = "127.0.0.1";
}
+ /* We might not be root if we are an RPC call */
+ become_root();
+ nt_status = smb_pam_accountcheck(unix_username, rhost);
+ unbecome_root();
+
if (NT_STATUS_IS_OK(nt_status)) {
- DEBUG((*server_info)->guest ? 5 : 2,
- ("check_ntlm_password: %sauthentication for user [%s] -> [%s] -> [%s] succeeded\n",
- (*server_info)->guest ? "guest " : "",
- user_info->client.account_name,
- user_info->mapped.account_name,
- unix_username));
+ DEBUG(5, ("check_ntlm_password: PAM Account for user [%s] "
+ "succeeded\n", unix_username));
+ } else {
+ DEBUG(3, ("check_ntlm_password: PAM Account for user [%s] "
+ "FAILED with error %s\n",
+ unix_username, nt_errstr(nt_status)));
}
+ }
- return nt_status;
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ goto fail;
}
+ nt_status = get_user_sid_info3_and_extra(server_info->info3,
+ &server_info->extra,
+ &sid);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ sid = (struct dom_sid) {0};
+ }
+
+ log_authentication_event(user_info, nt_status,
+ server_info->info3->base.logon_domain.string,
+ server_info->info3->base.account_name.string,
+ unix_username, &sid);
+
+ DEBUG(server_info->guest ? 5 : 2,
+ ("check_ntlm_password: %sauthentication for user "
+ "[%s] -> [%s] -> [%s] succeeded\n",
+ server_info->guest ? "guest " : "",
+ user_info->client.account_name,
+ user_info->mapped.account_name,
+ unix_username));
+
+ *pserver_info = talloc_move(mem_ctx, &server_info);
+
+ TALLOC_FREE(frame);
+ return NT_STATUS_OK;
+
+fail:
+
/* failed authentication; check for guest lapping */
- DEBUG(2, ("check_ntlm_password: Authentication for user [%s] -> [%s] FAILED with error %s\n",
+ /*
+ * Please try not to change this string, it is probably in use
+ * in audit logging tools
+ */
+ DEBUG(2, ("check_ntlm_password: Authentication for user "
+ "[%s] -> [%s] FAILED with error %s, authoritative=%u\n",
user_info->client.account_name, user_info->mapped.account_name,
- nt_errstr(nt_status)));
- ZERO_STRUCTP(server_info);
+ nt_errstr(nt_status), *pauthoritative));
+
+ log_authentication_event(user_info, nt_status, NULL, NULL, NULL, NULL);
+
+ ZERO_STRUCTP(pserver_info);
+
+ TALLOC_FREE(frame);
return nt_status;
}
return NT_STATUS_NO_MEMORY;
}
- ctx->check_ntlm_password = check_ntlm_password;
- ctx->get_ntlm_challenge = get_ntlm_challenge;
-
talloc_set_destructor((TALLOC_CTX *)ctx, auth_context_destructor);
*auth_context = ctx;
char **text_list)
{
auth_methods *list = NULL;
- auth_methods *t = NULL;
+ auth_methods *t, *method = NULL;
NTSTATUS nt_status;
if (!text_list) {
for (;*text_list; text_list++) {
if (load_auth_module(*auth_context, *text_list, &t)) {
- DLIST_ADD_END(list, t, auth_methods *);
+ DLIST_ADD_END(list, t);
}
}
(*auth_context)->auth_method_list = list;
- return nt_status;
+ /* Look for the first module to provide a prepare_gensec and
+ * make_auth4_context hook, and set that if provided */
+ for (method = (*auth_context)->auth_method_list; method; method = method->next) {
+ if (method->prepare_gensec && method->make_auth4_context) {
+ (*auth_context)->prepare_gensec = method->prepare_gensec;
+ (*auth_context)->make_auth4_context = method->make_auth4_context;
+ break;
+ }
+ }
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS make_auth_context_specific(TALLOC_CTX *mem_ctx,
+ struct auth_context **auth_context,
+ const char *methods)
+{
+ char **method_list;
+ NTSTATUS status;
+
+ method_list = str_list_make_v3(talloc_tos(), methods, NULL);
+ if (method_list == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = make_auth_context_text_list(
+ mem_ctx, auth_context, method_list);
+
+ TALLOC_FREE(method_list);
+
+ return status;
}
/***************************************************************************
Make a auth_context struct for the auth subsystem
***************************************************************************/
-NTSTATUS make_auth_context_subsystem(TALLOC_CTX *mem_ctx,
- struct auth_context **auth_context)
+static NTSTATUS make_auth_context_subsystem(TALLOC_CTX *mem_ctx,
+ struct auth_context **auth_context)
{
- char **auth_method_list = NULL;
+ const char *methods = NULL;
NTSTATUS nt_status;
- if (lp_auth_methods()
- && !(auth_method_list = str_list_copy(talloc_tos(),
- lp_auth_methods()))) {
- return NT_STATUS_NO_MEMORY;
+ switch (lp_server_role()) {
+ case ROLE_ACTIVE_DIRECTORY_DC:
+ DEBUG(5,("Making default auth method list for server role = "
+ "'active directory domain controller'\n"));
+ return make_auth_context_specific(mem_ctx, auth_context, "samba4");
+ default:
+ break;
}
- if (auth_method_list == NULL) {
- switch (lp_security())
- {
- case SEC_DOMAIN:
- DEBUG(5,("Making default auth method list for security=domain\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest sam winbind:ntdomain",
- NULL);
- break;
- case SEC_SERVER:
- DEBUG(5,("Making default auth method list for security=server\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest sam smbserver",
- NULL);
- break;
- case SEC_USER:
- if (lp_encrypted_passwords()) {
- if ((lp_server_role() == ROLE_DOMAIN_PDC) || (lp_server_role() == ROLE_DOMAIN_BDC)) {
- DEBUG(5,("Making default auth method list for DC, security=user, encrypt passwords = yes\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(),
- "guest sam winbind:trustdomain",
- NULL);
- } else {
- DEBUG(5,("Making default auth method list for standalone security=user, encrypt passwords = yes\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest sam",
- NULL);
- }
- } else {
- DEBUG(5,("Making default auth method list for security=user, encrypt passwords = no\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest unix", NULL);
- }
- break;
- case SEC_SHARE:
- if (lp_encrypted_passwords()) {
- DEBUG(5,("Making default auth method list for security=share, encrypt passwords = yes\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest sam", NULL);
- } else {
- DEBUG(5,("Making default auth method list for security=share, encrypt passwords = no\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest unix", NULL);
- }
- break;
- case SEC_ADS:
- DEBUG(5,("Making default auth method list for security=ADS\n"));
- auth_method_list = str_list_make_v3(
- talloc_tos(), "guest sam winbind:ntdomain",
- NULL);
- break;
- default:
- DEBUG(5,("Unknown auth method!\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
- } else {
+ if (lp_auth_methods()) {
DEBUG(5,("Using specified auth order\n"));
+ nt_status = make_auth_context_text_list(
+ mem_ctx, auth_context,
+ discard_const_p(char *, lp_auth_methods()));
+ return nt_status;
}
- nt_status = make_auth_context_text_list(mem_ctx, auth_context,
- auth_method_list);
+ switch (lp_server_role()) {
+ case ROLE_DOMAIN_MEMBER:
+ DEBUG(5,("Making default auth method list for server role = 'domain member'\n"));
+ methods = "guest sam winbind:ntdomain";
+ break;
+ case ROLE_DOMAIN_BDC:
+ case ROLE_DOMAIN_PDC:
+ DEBUG(5,("Making default auth method list for DC\n"));
+ methods = "guest sam winbind:trustdomain";
+ break;
+ case ROLE_STANDALONE:
+ DEBUG(5,("Making default auth method list for server role = 'standalone server', encrypt passwords = yes\n"));
+ if (lp_encrypt_passwords()) {
+ methods = "guest sam";
+ } else {
+ DEBUG(5,("Making default auth method list for server role = 'standalone server', encrypt passwords = no\n"));
+ methods = "guest unix";
+ }
+ break;
+ default:
+ DEBUG(5,("Unknown auth method!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
- TALLOC_FREE(auth_method_list);
- return nt_status;
+ return make_auth_context_specific(mem_ctx, auth_context, methods);
}
-/***************************************************************************
- Make a auth_info struct with a fixed challenge
-***************************************************************************/
+NTSTATUS make_auth3_context_for_ntlm(TALLOC_CTX *mem_ctx,
+ struct auth_context **auth_context)
+{
+ return make_auth_context_subsystem(mem_ctx, auth_context);
+}
-NTSTATUS make_auth_context_fixed(TALLOC_CTX *mem_ctx,
- struct auth_context **auth_context,
- uchar chal[8])
+NTSTATUS make_auth3_context_for_netlogon(TALLOC_CTX *mem_ctx,
+ struct auth_context **auth_context)
{
- NTSTATUS nt_status;
- nt_status = make_auth_context_subsystem(mem_ctx, auth_context);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
+ return make_auth_context_subsystem(mem_ctx, auth_context);
+}
+
+NTSTATUS make_auth3_context_for_winbind(TALLOC_CTX *mem_ctx,
+ struct auth_context **auth_context)
+{
+ const char *methods = NULL;
+
+ switch (lp_server_role()) {
+ case ROLE_STANDALONE:
+ case ROLE_DOMAIN_MEMBER:
+ case ROLE_DOMAIN_BDC:
+ case ROLE_DOMAIN_PDC:
+ methods = "sam";
+ break;
+ case ROLE_ACTIVE_DIRECTORY_DC:
+ methods = "samba4:sam";
+ break;
+ default:
+ DEBUG(5,("Unknown auth method!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
}
- (*auth_context)->challenge = data_blob_talloc(*auth_context, chal, 8);
- (*auth_context)->challenge_set_by = "fixed";
- return nt_status;
+ return make_auth_context_specific(mem_ctx, auth_context, methods);
}
-
+bool auth3_context_set_challenge(struct auth_context *ctx, uint8_t chal[8],
+ const char *challenge_set_by)
+{
+ ctx->challenge = data_blob_talloc(ctx, chal, 8);
+ if (ctx->challenge.data == NULL) {
+ return false;
+ }
+ ctx->challenge_set_by = talloc_strdup(ctx, challenge_set_by);
+ if (ctx->challenge_set_by == NULL) {
+ return false;
+ }
+ return true;
+}
git.samba.org / nivanova / samba-autobuild / .git / blobdiff