*/
#include "includes.h"
-#include "smbd/globals.h"
+#include "auth.h"
#include "../libcli/auth/libcli_auth.h"
#include "../lib/crypto/arcfour.h"
#include "rpc_client/init_lsa.h"
-#include "../libcli/security/dom_sid.h"
+#include "../libcli/security/security.h"
+#include "../lib/util/util_pw.h"
+#include "lib/winbind_util.h"
+#include "passdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
const char *domain;
NTSTATUS result;
bool was_mapped;
- fstring internal_username;
- fstrcpy(internal_username, smb_name);
- was_mapped = map_username(internal_username);
+ char *internal_username = NULL;
+
+ was_mapped = map_username(talloc_tos(), smb_name, &internal_username);
+ if (!internal_username) {
+ return NT_STATUS_NO_MEMORY;
+ }
DEBUG(5, ("Mapping user [%s]\\[%s] from workstation [%s]\n",
client_domain, smb_name, workstation_name));
* server_info->sids (the info3/sam groups). Find the unix gids.
*/
-NTSTATUS create_local_token(struct auth_serversupplied_info *server_info)
+NTSTATUS create_local_token(TALLOC_CTX *mem_ctx,
+ const struct auth_serversupplied_info *server_info,
+ DATA_BLOB *session_key,
+ struct auth_serversupplied_info **session_info_out)
{
+ struct security_token *t;
NTSTATUS status;
size_t i;
struct dom_sid tmp_sid;
+ struct auth_serversupplied_info *session_info;
+ struct wbcUnixId *ids;
+
+ /* Ensure we can't possible take a code path leading to a
+ * null defref. */
+ if (!server_info) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
+ session_info = copy_serverinfo(mem_ctx, server_info);
+
+ if (!session_info) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (session_key) {
+ data_blob_free(&session_info->session_key);
+ session_info->session_key = data_blob_talloc(session_info,
+ session_key->data,
+ session_key->length);
+ if (!session_info->session_key.data && session_key->length) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ if (session_info->security_token) {
+ /* Just copy the token, it has already been finalised
+ * (nasty hack to support a cached guest session_info,
+ * and a possible strategy for auth_samba4 to pass in
+ * a finalised session) */
+ *session_info_out = session_info;
+ return NT_STATUS_OK;
+ }
/*
* If winbind is not around, we can not make much use of the SIDs the
*/
if (((lp_server_role() == ROLE_DOMAIN_MEMBER) && !winbind_ping()) ||
- (server_info->nss_token)) {
- status = create_token_from_username(server_info,
- server_info->unix_name,
- server_info->guest,
- &server_info->utok.uid,
- &server_info->utok.gid,
- &server_info->unix_name,
- &server_info->ptok);
+ (session_info->nss_token)) {
+ status = create_token_from_username(session_info,
+ session_info->unix_name,
+ session_info->guest,
+ &session_info->utok.uid,
+ &session_info->utok.gid,
+ &session_info->unix_name,
+ &session_info->security_token);
} else {
- status = create_local_nt_token_from_info3(server_info,
- server_info->guest,
- server_info->info3,
- &server_info->extra,
- &server_info->ptok);
+ status = create_local_nt_token_from_info3(session_info,
+ session_info->guest,
+ session_info->info3,
+ &session_info->extra,
+ &session_info->security_token);
}
if (!NT_STATUS_IS_OK(status)) {
/* Convert the SIDs to gids. */
- server_info->utok.ngroups = 0;
- server_info->utok.groups = NULL;
+ session_info->utok.ngroups = 0;
+ session_info->utok.groups = NULL;
+
+ t = session_info->security_token;
+
+ ids = talloc_array(talloc_tos(), struct wbcUnixId,
+ t->num_sids);
+ if (ids == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!sids_to_unix_ids(t->sids, t->num_sids, ids)) {
+ TALLOC_FREE(ids);
+ return NT_STATUS_NO_MEMORY;
+ }
/* Start at index 1, where the groups start. */
- for (i=1; i<server_info->ptok->num_sids; i++) {
- gid_t gid;
- struct dom_sid *sid = &server_info->ptok->sids[i];
+ for (i=1; i<t->num_sids; i++) {
- if (!sid_to_gid(sid, &gid)) {
+ if (ids[i].type != WBC_ID_TYPE_GID) {
DEBUG(10, ("Could not convert SID %s to gid, "
- "ignoring it\n", sid_string_dbg(sid)));
+ "ignoring it\n",
+ sid_string_dbg(&t->sids[i])));
continue;
}
- add_gid_to_array_unique(server_info, gid,
- &server_info->utok.groups,
- &server_info->utok.ngroups);
+ if (!add_gid_to_array_unique(session_info, ids[i].id.gid,
+ &session_info->utok.groups,
+ &session_info->utok.ngroups)) {
+ return NT_STATUS_NO_MEMORY;
+ }
}
/*
* the nt token.
*/
- uid_to_unix_users_sid(server_info->utok.uid, &tmp_sid);
+ uid_to_unix_users_sid(session_info->utok.uid, &tmp_sid);
- add_sid_to_array_unique(server_info->ptok, &tmp_sid,
- &server_info->ptok->sids,
- &server_info->ptok->num_sids);
+ add_sid_to_array_unique(session_info->security_token, &tmp_sid,
+ &session_info->security_token->sids,
+ &session_info->security_token->num_sids);
- for ( i=0; i<server_info->utok.ngroups; i++ ) {
- gid_to_unix_groups_sid(server_info->utok.groups[i], &tmp_sid);
- add_sid_to_array_unique(server_info->ptok, &tmp_sid,
- &server_info->ptok->sids,
- &server_info->ptok->num_sids);
+ for ( i=0; i<session_info->utok.ngroups; i++ ) {
+ gid_to_unix_groups_sid(session_info->utok.groups[i], &tmp_sid);
+ add_sid_to_array_unique(session_info->security_token, &tmp_sid,
+ &session_info->security_token->sids,
+ &session_info->security_token->num_sids);
}
- debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
+ security_token_debug(DBGC_AUTH, 10, session_info->security_token);
debug_unix_user_token(DBGC_AUTH, 10,
- server_info->utok.uid,
- server_info->utok.gid,
- server_info->utok.ngroups,
- server_info->utok.groups);
+ session_info->utok.uid,
+ session_info->utok.gid,
+ session_info->utok.ngroups,
+ session_info->utok.groups);
- status = log_nt_token(server_info->ptok);
- return status;
+ status = log_nt_token(session_info->security_token);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ *session_info_out = session_info;
+ return NT_STATUS_OK;
}
/***************************************************************************
struct passwd *pwd;
const char *tmp;
- pwd = getpwnam_alloc(mem_ctx, guest_account);
+ pwd = Get_Pwnam_alloc(mem_ctx, guest_account);
if (pwd == NULL) {
DEBUG(0,("SamInfo3_for_guest: Unable to locate guest "
"account [%s]!\n", guest_account));
Make (and fill) a user_info struct for a guest login.
This *must* succeed for smbd to start. If there is no mapping entry for
the guest gid, then create one.
+
+ The resulting structure is a 'session_info' because
+ create_local_token() has already been called on it. This is quite
+ nasty, as the auth subsystem isn't expect this, but the behaviour is
+ left as-is for now.
***************************************************************************/
-static NTSTATUS make_new_server_info_guest(struct auth_serversupplied_info **server_info)
+static NTSTATUS make_new_server_info_guest(struct auth_serversupplied_info **session_info)
{
+ struct auth_serversupplied_info *server_info;
static const char zeros[16] = {0};
const char *guest_account = lp_guestaccount();
const char *domain = global_myname();
status = make_server_info_info3(tmp_ctx,
guest_account,
domain,
- server_info,
+ &server_info,
&info3);
if (!NT_STATUS_IS_OK(status)) {
goto done;
}
- (*server_info)->guest = True;
+ server_info->guest = True;
- status = create_local_token(*server_info);
+ /* This should not be done here (we should produce a server
+ * info, and later construct a session info from it), but for
+ * now this does not change the previous behaviours */
+ status = create_local_token(tmp_ctx, server_info, NULL, session_info);
+ TALLOC_FREE(server_info);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("create_local_token failed: %s\n",
nt_errstr(status)));
goto done;
}
+ talloc_steal(NULL, *session_info);
/* annoying, but the Guest really does have a session key, and it is
all zeros! */
- (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
- (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
+ (*session_info)->session_key = data_blob(zeros, sizeof(zeros));
+ (*session_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
- alpha_strcpy(tmp, (*server_info)->info3->base.account_name.string,
+ alpha_strcpy(tmp, (*session_info)->info3->base.account_name.string,
". _-$", sizeof(tmp));
- (*server_info)->sanitized_username = talloc_strdup(*server_info, tmp);
+ (*session_info)->sanitized_username = talloc_strdup(*session_info, tmp);
status = NT_STATUS_OK;
done:
}
/***************************************************************************
- Make (and fill) a user_info struct for a system user login.
+ Make (and fill) a auth_session_info struct for a system user login.
This *must* succeed for smbd to start.
***************************************************************************/
-static NTSTATUS make_new_server_info_system(TALLOC_CTX *mem_ctx,
- struct auth_serversupplied_info **server_info)
+static NTSTATUS make_new_session_info_system(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info **session_info)
{
struct passwd *pwd;
NTSTATUS status;
pwd = getpwuid_alloc(mem_ctx, sec_initial_uid());
if (pwd == NULL) {
- return NT_STATUS_NO_MEMORY;
+ return NT_STATUS_NO_SUCH_USER;
}
- status = make_serverinfo_from_username(mem_ctx,
- pwd->pw_name,
- false,
- server_info);
+ status = make_session_info_from_username(mem_ctx,
+ pwd->pw_name,
+ false,
+ session_info);
+ TALLOC_FREE(pwd);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- (*server_info)->system = true;
+ (*session_info)->system = true;
+
+ status = add_sid_to_array_unique((*session_info)->security_token->sids,
+ &global_sid_System,
+ &(*session_info)->security_token->sids,
+ &(*session_info)->security_token->num_sids);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE((*session_info));
+ return status;
+ }
return NT_STATUS_OK;
}
/****************************************************************************
- Fake a auth_serversupplied_info just from a username
+ Fake a auth_serversupplied_info just from a username (as a
+ session_info structure, with create_local_token() already called on
+ it.
****************************************************************************/
-NTSTATUS make_serverinfo_from_username(TALLOC_CTX *mem_ctx,
- const char *username,
- bool is_guest,
- struct auth_serversupplied_info **presult)
+NTSTATUS make_session_info_from_username(TALLOC_CTX *mem_ctx,
+ const char *username,
+ bool is_guest,
+ struct auth_serversupplied_info **session_info)
{
struct auth_serversupplied_info *result;
struct passwd *pwd;
NTSTATUS status;
- pwd = getpwnam_alloc(talloc_tos(), username);
+ pwd = Get_Pwnam_alloc(talloc_tos(), username);
if (pwd == NULL) {
return NT_STATUS_NO_SUCH_USER;
}
result->nss_token = true;
result->guest = is_guest;
- status = create_local_token(result);
-
- if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(result);
- return status;
- }
-
- *presult = result;
- return NT_STATUS_OK;
+ /* Now turn the server_info into a session_info with the full token etc */
+ status = create_local_token(mem_ctx, result, NULL, session_info);
+ talloc_free(result);
+ return status;
}
dst->utok.groups = NULL;
}
- if (src->ptok) {
- dst->ptok = dup_nt_token(dst, src->ptok);
- if (!dst->ptok) {
+ if (src->security_token) {
+ dst->security_token = dup_nt_token(dst, src->security_token);
+ if (!dst->security_token) {
TALLOC_FREE(dst);
return NULL;
}
}
- dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
- src->user_session_key.length);
+ dst->session_key = data_blob_talloc( dst, src->session_key.data,
+ src->session_key.length);
dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
src->lm_session_key.length);
}
dst->extra = src->extra;
- dst->pam_handle = NULL;
dst->unix_name = talloc_strdup(dst, src->unix_name);
if (!dst->unix_name) {
TALLOC_FREE(dst);
* SMB level session key with SystemLibraryDTC
*/
-bool server_info_set_session_key(struct auth_serversupplied_info *info,
+bool session_info_set_session_key(struct auth_serversupplied_info *info,
DATA_BLOB session_key)
{
- TALLOC_FREE(info->user_session_key.data);
+ TALLOC_FREE(info->session_key.data);
- info->user_session_key = data_blob_talloc(
+ info->session_key = data_blob_talloc(
info, session_key.data, session_key.length);
- return (info->user_session_key.data != NULL);
+ return (info->session_key.data != NULL);
}
static struct auth_serversupplied_info *guest_info = NULL;
static struct auth_serversupplied_info *system_info = NULL;
-bool init_system_info(void)
+NTSTATUS init_system_info(void)
{
if (system_info != NULL)
- return True;
+ return NT_STATUS_OK;
- return NT_STATUS_IS_OK(make_new_server_info_system(talloc_autofree_context(), &system_info));
+ return make_new_session_info_system(NULL, &system_info);
}
-NTSTATUS make_server_info_system(TALLOC_CTX *mem_ctx,
- struct auth_serversupplied_info **server_info)
+NTSTATUS make_session_info_system(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info **session_info)
{
if (system_info == NULL) return NT_STATUS_UNSUCCESSFUL;
- *server_info = copy_serverinfo(mem_ctx, system_info);
- return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
+ *session_info = copy_serverinfo(mem_ctx, system_info);
+ return (*session_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
}
-const struct auth_serversupplied_info *get_server_info_system(void)
+const struct auth_serversupplied_info *get_session_info_system(void)
{
return system_info;
}
struct passwd **pwd,
bool *username_was_mapped)
{
- fstring dom_user, lower_username;
- fstring real_username;
+ char *orig_dom_user = NULL;
+ char *dom_user = NULL;
+ char *lower_username = NULL;
+ char *real_username = NULL;
struct passwd *passwd;
- fstrcpy( lower_username, username );
+ lower_username = talloc_strdup(mem_ctx, username);
+ if (!lower_username) {
+ return NT_STATUS_NO_MEMORY;
+ }
strlower_m( lower_username );
- fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
- lower_username);
+ orig_dom_user = talloc_asprintf(mem_ctx,
+ "%s%c%s",
+ domain,
+ *lp_winbind_separator(),
+ lower_username);
+ if (!orig_dom_user) {
+ return NT_STATUS_NO_MEMORY;
+ }
/* Get the passwd struct. Try to create the account if necessary. */
- *username_was_mapped = map_username(dom_user);
+ *username_was_mapped = map_username(mem_ctx, orig_dom_user, &dom_user);
+ if (!dom_user) {
+ return NT_STATUS_NO_MEMORY;
+ }
- passwd = smb_getpwnam( NULL, dom_user, real_username, True );
+ passwd = smb_getpwnam(mem_ctx, dom_user, &real_username, True );
if (!passwd) {
DEBUG(3, ("Failed to find authenticated user %s via "
"getpwnam(), denying access.\n", dom_user));
return NT_STATUS_NO_SUCH_USER;
}
+ if (!real_username) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
*pwd = passwd;
/* This is pointless -- there is no suport for differing
****************************************************************************/
struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, const char *domuser,
- fstring save_username, bool create )
+ char **p_save_username, bool create )
{
struct passwd *pw = NULL;
- char *p;
- fstring username;
+ char *p = NULL;
+ char *username = NULL;
/* we only save a copy of the username it has been mangled
by winbindd use default domain */
-
- save_username[0] = '\0';
+ *p_save_username = NULL;
/* don't call map_username() here since it has to be done higher
up the stack so we don't call it multiple times */
- fstrcpy( username, domuser );
+ username = talloc_strdup(mem_ctx, domuser);
+ if (!username) {
+ return NULL;
+ }
p = strchr_m( username, *lp_winbind_separator() );
/* code for a DOMAIN\user string */
if ( p ) {
- fstring strip_username;
-
pw = Get_Pwnam_alloc( mem_ctx, domuser );
- if ( pw ) {
+ if ( pw ) {
/* make sure we get the case of the username correct */
/* work around 'winbind use default domain = yes' */
*p = '\0';
domain = username;
- fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
+ *p_save_username = talloc_asprintf(mem_ctx,
+ "%s%c%s",
+ domain,
+ *lp_winbind_separator(),
+ pw->pw_name);
+ if (!*p_save_username) {
+ TALLOC_FREE(pw);
+ return NULL;
+ }
+ } else {
+ *p_save_username = talloc_strdup(mem_ctx, pw->pw_name);
}
- else
- fstrcpy( save_username, pw->pw_name );
- /* whew -- done! */
+ /* whew -- done! */
return pw;
}
/* remember that p and username are overlapping memory */
p++;
- fstrcpy( strip_username, p );
- fstrcpy( username, strip_username );
+ username = talloc_strdup(mem_ctx, p);
+ if (!username) {
+ return NULL;
+ }
}
/* just lookup a plain username */
/* one last check for a valid passwd struct */
- if ( pw )
- fstrcpy( save_username, pw->pw_name );
-
+ if (pw) {
+ *p_save_username = talloc_strdup(mem_ctx, pw->pw_name);
+ }
return pw;
}
/* ensure we are never given NULL session keys */
if (memcmp(info3->base.key.key, zeros, sizeof(zeros)) == 0) {
- result->user_session_key = data_blob_null;
+ result->session_key = data_blob_null;
} else {
- result->user_session_key = data_blob_talloc(
+ result->session_key = data_blob_talloc(
result, info3->base.key.key,
sizeof(info3->base.key.key));
}
git.samba.org / kai / samba.git / blobdiff