s3-talloc Change TALLOC_ARRAY() to talloc_array()
[samba.git] / source3 / auth / token_util.c
index feb930f68669baf13bdc1301c7349585d51cd178..386e66783415998b92de815d2a25644baca2b166 100644 (file)
 /* functions moved from auth/auth_util.c to minimize linker deps */
 
 #include "includes.h"
+#include "auth.h"
 #include "secrets.h"
 #include "memcache.h"
-
 #include "../librpc/gen_ndr/netlogon.h"
+#include "../libcli/security/security.h"
+#include "../lib/util/util_pw.h"
+#include "passdb.h"
+#include "lib/privileges.h"
 
 /****************************************************************************
- Check for a SID in an NT_USER_TOKEN
+ Check for a SID in an struct security_token
 ****************************************************************************/
 
-bool nt_token_check_sid ( const struct dom_sid *sid, const NT_USER_TOKEN *token )
+bool nt_token_check_sid ( const struct dom_sid *sid, const struct security_token *token )
 {
-       int i;
-
        if ( !sid || !token )
                return False;
 
-       for ( i=0; i<token->num_sids; i++ ) {
-               if ( sid_equal( sid, &token->sids[i] ) )
-                       return True;
-       }
-
-       return False;
+       return security_token_has_sid(token, sid);
 }
 
-bool nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
+bool nt_token_check_domain_rid( struct security_token *token, uint32 rid )
 {
        struct dom_sid domain_sid;
 
@@ -76,12 +73,12 @@ bool nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
  Create a token for the root user to be used internally by smbd.
  This is similar to running under the context of the LOCAL_SYSTEM account
  in Windows.  This is a read-only token.  Do not modify it or free() it.
- Create a copy if your need to change it.
+ Create a copy if you need to change it.
 ******************************************************************************/
 
-NT_USER_TOKEN *get_root_nt_token( void )
+struct security_token *get_root_nt_token( void )
 {
-       struct nt_user_token *token, *for_cache;
+       struct security_token *token, *for_cache;
        struct dom_sid u_sid, g_sid;
        struct passwd *pw;
        void *cache_data;
@@ -92,7 +89,7 @@ NT_USER_TOKEN *get_root_nt_token( void )
 
        if (cache_data != NULL) {
                return talloc_get_type_abort(
-                       cache_data, struct nt_user_token);
+                       cache_data, struct security_token);
        }
 
        if ( !(pw = sys_getpwuid(0)) ) {
@@ -109,10 +106,10 @@ NT_USER_TOKEN *get_root_nt_token( void )
        uid_to_sid(&u_sid, pw->pw_uid);
        gid_to_sid(&g_sid, pw->pw_gid);
 
-       token = create_local_nt_token(talloc_autofree_context(), &u_sid, False,
+       token = create_local_nt_token(talloc_tos(), &u_sid, False,
                                      1, &global_sid_Builtin_Administrators);
 
-       token->privilege_mask = se_disk_operators;
+       security_token_set_privilege(token, SEC_PRIV_DISK_OPERATOR);
 
        for_cache = token;
 
@@ -129,7 +126,7 @@ NT_USER_TOKEN *get_root_nt_token( void )
  */
 
 NTSTATUS add_aliases(const struct dom_sid *domain_sid,
-                    struct nt_user_token *token)
+                    struct security_token *token)
 {
        uint32 *aliases;
        size_t i, num_aliases;
@@ -174,7 +171,7 @@ done:
 /*******************************************************************
 *******************************************************************/
 
-static NTSTATUS add_builtin_administrators(struct nt_user_token *token,
+static NTSTATUS add_builtin_administrators(struct security_token *token,
                                           const struct dom_sid *dom_sid)
 {
        struct dom_sid domadm;
@@ -209,153 +206,23 @@ static NTSTATUS add_builtin_administrators(struct nt_user_token *token,
        return NT_STATUS_OK;
 }
 
-/**
- * Create the requested BUILTIN if it doesn't already exist.  This requires
- * winbindd to be running.
- *
- * @param[in] rid BUILTIN rid to create
- * @return Normal NTSTATUS return.
- */
-static NTSTATUS create_builtin(uint32 rid)
-{
-       NTSTATUS status = NT_STATUS_OK;
-       struct dom_sid sid;
-       gid_t gid;
-
-       if (!sid_compose(&sid, &global_sid_Builtin, rid)) {
-               return NT_STATUS_NO_SUCH_ALIAS;
-       }
-
-       if (!sid_to_gid(&sid, &gid)) {
-               if (!lp_winbind_nested_groups() || !winbind_ping()) {
-                       return NT_STATUS_PROTOCOL_UNREACHABLE;
-               }
-               status = pdb_create_builtin_alias(rid);
-       }
-       return status;
-}
-
-/**
- * Add sid as a member of builtin_sid.
- *
- * @param[in] builtin_sid      An existing builtin group.
- * @param[in] dom_sid          sid to add as a member of builtin_sid.
- * @return Normal NTSTATUS return
- */
-static NTSTATUS add_sid_to_builtin(const struct dom_sid *builtin_sid,
-                                  const struct dom_sid *dom_sid)
-{
-       NTSTATUS status = NT_STATUS_OK;
-
-       if (!dom_sid || !builtin_sid) {
-               return NT_STATUS_INVALID_PARAMETER;
-       }
-
-       status = pdb_add_aliasmem(builtin_sid, dom_sid);
-
-       if (NT_STATUS_EQUAL(status, NT_STATUS_MEMBER_IN_ALIAS)) {
-               DEBUG(5, ("add_sid_to_builtin %s is already a member of %s\n",
-                         sid_string_dbg(dom_sid),
-                         sid_string_dbg(builtin_sid)));
-               return NT_STATUS_OK;
-       }
-
-       if (!NT_STATUS_IS_OK(status)) {
-               DEBUG(4, ("add_sid_to_builtin %s could not be added to %s: "
-                         "%s\n", sid_string_dbg(dom_sid),
-                         sid_string_dbg(builtin_sid), nt_errstr(status)));
-       }
-       return status;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-NTSTATUS create_builtin_users(const struct dom_sid *dom_sid)
-{
-       NTSTATUS status;
-       struct dom_sid dom_users;
-
-       status = create_builtin(BUILTIN_RID_USERS);
-       if ( !NT_STATUS_IS_OK(status) ) {
-               DEBUG(5,("create_builtin_users: Failed to create Users\n"));
-               return status;
-       }
-
-       /* add domain users */
-       if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
-               && sid_compose(&dom_users, dom_sid, DOMAIN_RID_USERS))
-       {
-               status = add_sid_to_builtin(&global_sid_Builtin_Users,
-                                           &dom_users);
-       }
-
-       return status;
-}
-
-/*******************************************************************
-*******************************************************************/
-
-NTSTATUS create_builtin_administrators(const struct dom_sid *dom_sid)
-{
-       NTSTATUS status;
-       struct dom_sid dom_admins, root_sid;
-       fstring root_name;
-       enum lsa_SidType type;
-       TALLOC_CTX *ctx;
-       bool ret;
-
-       status = create_builtin(BUILTIN_RID_ADMINISTRATORS);
-       if ( !NT_STATUS_IS_OK(status) ) {
-               DEBUG(5,("create_builtin_administrators: Failed to create Administrators\n"));
-               return status;
-       }
-
-       /* add domain admins */
-       if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
-               && sid_compose(&dom_admins, dom_sid, DOMAIN_RID_ADMINS))
-       {
-               status = add_sid_to_builtin(&global_sid_Builtin_Administrators,
-                                           &dom_admins);
-               if (!NT_STATUS_IS_OK(status)) {
-                       return status;
-               }
-       }
-
-       /* add root */
-       if ( (ctx = talloc_init("create_builtin_administrators")) == NULL ) {
-               return NT_STATUS_NO_MEMORY;
-       }
-       fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
-       ret = lookup_name(ctx, root_name, LOOKUP_NAME_DOMAIN, NULL, NULL,
-                         &root_sid, &type);
-       TALLOC_FREE( ctx );
-
-       if ( ret ) {
-               status = add_sid_to_builtin(&global_sid_Builtin_Administrators,
-                                           &root_sid);
-       }
-
-       return status;
-}
-
-static NTSTATUS finalize_local_nt_token(struct nt_user_token *result,
+static NTSTATUS finalize_local_nt_token(struct security_token *result,
                                        bool is_guest);
 
 NTSTATUS create_local_nt_token_from_info3(TALLOC_CTX *mem_ctx,
                                          bool is_guest,
                                          struct netr_SamInfo3 *info3,
                                          struct extra_auth_info *extra,
-                                         struct nt_user_token **ntok)
+                                         struct security_token **ntok)
 {
-       struct nt_user_token *usrtok = NULL;
+       struct security_token *usrtok = NULL;
        NTSTATUS status;
        int i;
 
        DEBUG(10, ("Create local NT token for %s\n",
                   info3->base.account_name.string));
 
-       usrtok = talloc_zero(mem_ctx, struct nt_user_token);
+       usrtok = talloc_zero(mem_ctx, struct security_token);
        if (!usrtok) {
                DEBUG(0, ("talloc failed\n"));
                return NT_STATUS_NO_MEMORY;
@@ -458,20 +325,20 @@ NTSTATUS create_local_nt_token_from_info3(TALLOC_CTX *mem_ctx,
  Create a NT token for the user, expanding local aliases
 *******************************************************************/
 
-struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
+struct security_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
                                            const struct dom_sid *user_sid,
                                            bool is_guest,
                                            int num_groupsids,
                                            const struct dom_sid *groupsids)
 {
-       struct nt_user_token *result = NULL;
+       struct security_token *result = NULL;
        int i;
        NTSTATUS status;
 
        DEBUG(10, ("Create local NT token for %s\n",
                   sid_string_dbg(user_sid)));
 
-       if (!(result = TALLOC_ZERO_P(mem_ctx, struct nt_user_token))) {
+       if (!(result = TALLOC_ZERO_P(mem_ctx, struct security_token))) {
                DEBUG(0, ("talloc failed\n"));
                return NULL;
        }
@@ -521,7 +388,7 @@ struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
        return result;
 }
 
-static NTSTATUS finalize_local_nt_token(struct nt_user_token *result,
+static NTSTATUS finalize_local_nt_token(struct security_token *result,
                                        bool is_guest)
 {
        struct dom_sid dom_sid;
@@ -648,32 +515,6 @@ static NTSTATUS finalize_local_nt_token(struct nt_user_token *result,
        return NT_STATUS_OK;
 }
 
-/****************************************************************************
- prints a NT_USER_TOKEN to debug output.
-****************************************************************************/
-
-void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
-{
-       size_t     i;
-
-       if (!token) {
-               DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
-               return;
-       }
-
-       DEBUGC(dbg_class, dbg_lev,
-              ("NT user token of user %s\n",
-               sid_string_dbg(&token->sids[0]) ));
-       DEBUGADDC(dbg_class, dbg_lev,
-                 ("contains %lu SIDs\n", (unsigned long)token->num_sids));
-       for (i = 0; i < token->num_sids; i++)
-               DEBUGADDC(dbg_class, dbg_lev,
-                         ("SID[%3lu]: %s\n", (unsigned long)i,
-                          sid_string_dbg(&token->sids[i])));
-
-       dump_se_priv( dbg_class, dbg_lev, &token->privilege_mask );
-}
-
 /****************************************************************************
  prints a UNIX 'token' to debug output.
 ****************************************************************************/
@@ -716,7 +557,7 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                                    bool is_guest,
                                    uid_t *uid, gid_t *gid,
                                    char **found_username,
-                                   struct nt_user_token **token)
+                                   struct security_token **token)
 {
        NTSTATUS result = NT_STATUS_NO_SUCH_USER;
        TALLOC_CTX *tmp_ctx = talloc_stackframe();
@@ -725,9 +566,9 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
        gid_t *gids;
        struct dom_sid *group_sids;
        struct dom_sid unix_group_sid;
-       size_t num_group_sids;
-       size_t num_gids;
-       size_t i;
+       uint32_t num_group_sids;
+       uint32_t num_gids;
+       uint32_t i;
 
        if (!lookup_name_smbconf(tmp_ctx, username, LOOKUP_NAME_ALL,
                         NULL, NULL, &user_sid, &type)) {
@@ -743,7 +584,7 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
 
        if (sid_check_is_in_our_domain(&user_sid)) {
                bool ret;
-
+               uint32_t pdb_num_group_sids;
                /* This is a passdb user, so ask passdb */
 
                struct samu *sam_acct = NULL;
@@ -766,7 +607,7 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
 
                result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
                                                    &group_sids, &gids,
-                                                   &num_group_sids);
+                                                   &pdb_num_group_sids);
                if (!NT_STATUS_IS_OK(result)) {
                        DEBUG(1, ("enum_group_memberships failed for %s (%s): "
                                  "%s\n", username, sid_string_dbg(&user_sid),
@@ -774,6 +615,7 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                        DEBUGADD(1, ("Fall back to unix user %s\n", username));
                        goto unix_user;
                }
+               num_group_sids = pdb_num_group_sids;
 
                /* see the smb_panic() in pdb_default_enum_group_memberships */
                SMB_ASSERT(num_group_sids > 0);
@@ -789,14 +631,14 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                 * about the mapping of guest sid to lp_guestaccount()
                 * username and will return the unix_pw info for a guest
                 * user. Use it if it's there, else lookup the *uid details
-                * using getpwnam_alloc(). See bug #6291 for details. JRA.
+                * using Get_Pwnam_alloc(). See bug #6291 for details. JRA.
                 */
 
                /* We must always assign the *uid. */
                if (sam_acct->unix_pw == NULL) {
-                       struct passwd *pwd = getpwnam_alloc(sam_acct, *found_username );
+                       struct passwd *pwd = Get_Pwnam_alloc(sam_acct, *found_username );
                        if (!pwd) {
-                               DEBUG(10, ("getpwnam_alloc failed for %s\n",
+                               DEBUG(10, ("Get_Pwnam_alloc failed for %s\n",
                                        *found_username));
                                result = NT_STATUS_NO_SUCH_USER;
                                goto done;
@@ -812,7 +654,7 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                *uid = sam_acct->unix_pw->pw_uid;
 
        } else  if (sid_check_is_in_unix_users(&user_sid)) {
-
+               uint32_t getgroups_num_group_sids;
                /* This is a unix user not in passdb. We need to ask nss
                 * directly, without consulting passdb */
 
@@ -843,16 +685,17 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                }
 
                if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
-                                        &gids, &num_group_sids)) {
+                                        &gids, &getgroups_num_group_sids)) {
                        DEBUG(1, ("getgroups_unix_user for user %s failed\n",
                                  username));
                        goto done;
                }
+               num_group_sids = getgroups_num_group_sids;
 
                if (num_group_sids) {
-                       group_sids = TALLOC_ARRAY(tmp_ctx, struct dom_sid, num_group_sids);
+                       group_sids = talloc_array(tmp_ctx, struct dom_sid, num_group_sids);
                        if (group_sids == NULL) {
-                               DEBUG(1, ("TALLOC_ARRAY failed\n"));
+                               DEBUG(1, ("talloc_array failed\n"));
                                result = NT_STATUS_NO_MEMORY;
                                goto done;
                        }
@@ -880,8 +723,6 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                 * correct info. AD might prohibit winbind looking up that
                 * information. */
 
-               uint32 dummy;
-
                /* We must always assign the *uid. */
                if (!sid_to_uid(&user_sid, uid)) {
                        DEBUG(1, ("winbindd case, sid_to_uid for %s (%s) failed\n",
@@ -891,15 +732,15 @@ NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
                }
 
                num_group_sids = 1;
-               group_sids = TALLOC_ARRAY(tmp_ctx, struct dom_sid, num_group_sids);
+               group_sids = talloc_array(tmp_ctx, struct dom_sid, num_group_sids);
                if (group_sids == NULL) {
-                       DEBUG(1, ("TALLOC_ARRAY failed\n"));
+                       DEBUG(1, ("talloc_array failed\n"));
                        result = NT_STATUS_NO_MEMORY;
                        goto done;
                }
 
                sid_copy(&group_sids[0], &user_sid);
-               sid_split_rid(&group_sids[0], &dummy);
+               sid_split_rid(&group_sids[0], NULL);
                sid_append_rid(&group_sids[0], DOMAIN_RID_USERS);
 
                if (!sid_to_gid(&group_sids[0], gid)) {
@@ -967,7 +808,7 @@ bool user_in_group_sid(const char *username, const struct dom_sid *group_sid)
        uid_t uid;
        gid_t gid;
        char *found_username;
-       struct nt_user_token *token;
+       struct security_token *token;
        bool result;
        TALLOC_CTX *mem_ctx = talloc_stackframe();
 
@@ -981,7 +822,7 @@ bool user_in_group_sid(const char *username, const struct dom_sid *group_sid)
                return False;
        }
 
-       result = nt_token_check_sid(group_sid, token);
+       result = security_token_has_sid(token, group_sid);
 
        TALLOC_FREE(mem_ctx);
        return result;