r21108: Send sys_notify_watch through the VFS, FAM is next
[ira/wip.git] / source3 / smbd / uid.c
index 458eb3a2c86a7b1e4846374eb045ca393f888bff..85885803222f66d66a067a8cc094f8db3260d0bb 100644 (file)
@@ -30,18 +30,18 @@ extern struct current_user current_user;
 gid_t get_current_user_gid_first(int *piterator)
 {
        *piterator = 0;
-       return current_user.gid;
+       return current_user.ut.gid;
 }
 
 gid_t get_current_user_gid_next(int *piterator)
 {
        gid_t ret;
 
-       if (!current_user.groups || *piterator >= current_user.ngroups) {
+       if (!current_user.ut.groups || *piterator >= current_user.ut.ngroups) {
                return (gid_t)-1;
        }
 
-       ret = current_user.groups[*piterator];
+       ret = current_user.ut.groups[*piterator];
        (*piterator) += 1;
        return ret;
 }
@@ -56,7 +56,7 @@ BOOL change_to_guest(void)
 
        if (!pass) {
                /* Don't need to free() this as its stored in a static */
-               pass = getpwnam_alloc(lp_guestaccount());
+               pass = getpwnam_alloc(NULL, lp_guestaccount());
                if (!pass)
                        return(False);
        }
@@ -71,67 +71,13 @@ BOOL change_to_guest(void)
        
        current_user.conn = NULL;
        current_user.vuid = UID_FIELD_INVALID;
-       
-       passwd_free(&pass);
 
+       TALLOC_FREE(pass);
+       pass = NULL;
+       
        return True;
 }
 
-/****************************************************************************
- Readonly share for this user ?
-****************************************************************************/
-
-static BOOL is_share_read_only_for_user(int snum, user_struct *vuser)
-{
-       char **list;
-       const char *service = lp_servicename(snum);
-       BOOL read_only_ret = lp_readonly(snum);
-
-       if (!service)
-               return read_only_ret;
-
-       str_list_copy(&list, lp_readlist(snum));
-       if (list) {
-               if (!str_list_sub_basic(list, vuser->user.smb_name) ) {
-                       DEBUG(0, ("is_share_read_only_for_user: ERROR: read "
-                                 "list substitution failed\n"));
-               }
-               if (!str_list_substitute(list, "%S", service)) {
-                       DEBUG(0, ("is_share_read_only_for_user: ERROR: read "
-                                 "list service substitution failed\n"));
-               }
-               if (user_in_list(vuser->user.unix_name, (const char **)list,
-                                vuser->groups, vuser->n_groups)) {
-                       read_only_ret = True;
-               }
-               str_list_free(&list);
-       }
-
-       str_list_copy(&list, lp_writelist(snum));
-       if (list) {
-               if (!str_list_sub_basic(list, vuser->user.smb_name) ) {
-                       DEBUG(0, ("is_share_read_only_for_user: ERROR: write "
-                                 "list substitution failed\n"));
-               }
-               if (!str_list_substitute(list, "%S", service)) {
-                       DEBUG(0, ("is_share_read_only_for_user: ERROR: write "
-                                 "list service substitution failed\n"));
-               }
-               if (user_in_list(vuser->user.unix_name, (const char **)list,
-                                vuser->groups, vuser->n_groups)) {
-                       read_only_ret = False;
-               }
-               str_list_free(&list);
-       }
-
-       DEBUG(10,("is_share_read_only_for_user: share %s is %s for unix user "
-                 "%s\n", service,
-                 read_only_ret ? "read-only" : "read-write",
-                 vuser->user.unix_name ));
-
-       return read_only_ret;
-}
-
 /*******************************************************************
  Check if a username is OK.
 ********************************************************************/
@@ -141,6 +87,7 @@ static BOOL check_user_ok(connection_struct *conn, user_struct *vuser,int snum)
        unsigned int i;
        struct vuid_cache_entry *ent = NULL;
        BOOL readonly_share;
+       NT_USER_TOKEN *token;
 
        for (i=0;i<conn->vuid_cache.entries && i< VUID_CACHE_SIZE;i++) {
                if (conn->vuid_cache.array[i].vuid == vuser->vuid) {
@@ -151,20 +98,29 @@ static BOOL check_user_ok(connection_struct *conn, user_struct *vuser,int snum)
                }
        }
 
-       if (!user_ok(vuser->user.unix_name,snum, vuser->groups, vuser->n_groups))
+       if (!user_ok_token(vuser->user.unix_name, vuser->nt_user_token, snum))
                return(False);
 
-       readonly_share = is_share_read_only_for_user(conn->service, vuser);
+       readonly_share = is_share_read_only_for_token(vuser->user.unix_name,
+                                                     vuser->nt_user_token,
+                                                     SNUM(conn));
+
+       token = conn->nt_user_token ?
+               conn->nt_user_token : vuser->nt_user_token;
 
        if (!readonly_share &&
-           !share_access_check(conn, snum, vuser, FILE_WRITE_DATA)) {
+           !share_access_check(token, lp_servicename(snum),
+                               FILE_WRITE_DATA)) {
                /* smb.conf allows r/w, but the security descriptor denies
                 * write. Fall back to looking at readonly. */
                readonly_share = True;
-               DEBUG(5,("falling back to read-only access-evaluation due to security descriptor\n"));
+               DEBUG(5,("falling back to read-only access-evaluation due to "
+                        "security descriptor\n"));
        }
 
-       if (!share_access_check(conn, snum, vuser, readonly_share ? FILE_READ_DATA : FILE_WRITE_DATA)) {
+       if (!share_access_check(token, lp_servicename(snum),
+                               readonly_share ?
+                               FILE_READ_DATA : FILE_WRITE_DATA)) {
                return False;
        }
 
@@ -176,11 +132,9 @@ static BOOL check_user_ok(connection_struct *conn, user_struct *vuser,int snum)
        ent->vuid = vuser->vuid;
        ent->read_only = readonly_share;
 
-       if (user_in_list(vuser->user.unix_name ,lp_admin_users(conn->service), vuser->groups, vuser->n_groups)) {
-               ent->admin_user = True;
-       } else {
-               ent->admin_user = False;
-       }
+       ent->admin_user = token_contains_name_in_list(
+               vuser->user.unix_name, NULL, vuser->nt_user_token,
+               lp_admin_users(SNUM(conn)));
 
        conn->read_only = ent->read_only;
        conn->admin_user = ent->admin_user;
@@ -190,7 +144,7 @@ static BOOL check_user_ok(connection_struct *conn, user_struct *vuser,int snum)
 
 /****************************************************************************
  Become the user of a connection number without changing the security context
- stack, but modify the currnet_user entries.
+ stack, but modify the current_user entries.
 ****************************************************************************/
 
 BOOL change_to_user(connection_struct *conn, uint16 vuid)
@@ -216,38 +170,43 @@ BOOL change_to_user(connection_struct *conn, uint16 vuid)
         */
 
        if((lp_security() == SEC_SHARE) && (current_user.conn == conn) &&
-          (current_user.uid == conn->uid)) {
-               DEBUG(4,("change_to_user: Skipping user change - already user\n"));
+          (current_user.ut.uid == conn->uid)) {
+               DEBUG(4,("change_to_user: Skipping user change - already "
+                        "user\n"));
                return(True);
        } else if ((current_user.conn == conn) && 
                   (vuser != 0) && (current_user.vuid == vuid) && 
-                  (current_user.uid == vuser->uid)) {
-               DEBUG(4,("change_to_user: Skipping user change - already user\n"));
+                  (current_user.ut.uid == vuser->uid)) {
+               DEBUG(4,("change_to_user: Skipping user change - already "
+                        "user\n"));
                return(True);
        }
 
        snum = SNUM(conn);
 
        if ((vuser) && !check_user_ok(conn, vuser, snum)) {
-               DEBUG(2,("change_to_user: SMB user %s (unix user %s, vuid %d) not permitted access to share %s.\n",
-                       vuser->user.smb_name, vuser->user.unix_name, vuid, lp_servicename(snum)));
+               DEBUG(2,("change_to_user: SMB user %s (unix user %s, vuid %d) "
+                        "not permitted access to share %s.\n",
+                        vuser->user.smb_name, vuser->user.unix_name, vuid,
+                        lp_servicename(snum)));
                return False;
        }
 
        if (conn->force_user) /* security = share sets this too */ {
                uid = conn->uid;
                gid = conn->gid;
-               current_user.groups = conn->groups;
-               current_user.ngroups = conn->ngroups;
+               current_user.ut.groups = conn->groups;
+               current_user.ut.ngroups = conn->ngroups;
                token = conn->nt_user_token;
        } else if (vuser) {
                uid = conn->admin_user ? 0 : vuser->uid;
                gid = vuser->gid;
-               current_user.ngroups = vuser->n_groups;
-               current_user.groups  = vuser->groups;
+               current_user.ut.ngroups = vuser->n_groups;
+               current_user.ut.groups  = vuser->groups;
                token = vuser->nt_user_token;
        } else {
-               DEBUG(2,("change_to_user: Invalid vuid used %d in accessing share %s.\n",vuid, lp_servicename(snum) ));
+               DEBUG(2,("change_to_user: Invalid vuid used %d in accessing "
+                        "share %s.\n",vuid, lp_servicename(snum) ));
                return False;
        }
 
@@ -258,7 +217,13 @@ BOOL change_to_user(connection_struct *conn, uint16 vuid)
         */
 
        if((group_c = *lp_force_group(snum))) {
-               BOOL is_guest = False;
+
+               token = dup_nt_token(NULL, token);
+               if (token == NULL) {
+                       DEBUG(0, ("dup_nt_token failed\n"));
+                       return False;
+               }
+               must_free_token = True;
 
                if(group_c == '+') {
 
@@ -270,40 +235,28 @@ BOOL change_to_user(connection_struct *conn, uint16 vuid)
                         */
 
                        int i;
-                       for (i = 0; i < current_user.ngroups; i++) {
-                               if (current_user.groups[i] == conn->gid) {
+                       for (i = 0; i < current_user.ut.ngroups; i++) {
+                               if (current_user.ut.groups[i] == conn->gid) {
                                        gid = conn->gid;
+                                       gid_to_sid(&token->user_sids[1], gid);
                                        break;
                                }
                        }
                } else {
                        gid = conn->gid;
+                       gid_to_sid(&token->user_sids[1], gid);
                }
-
-               /*
-                * We've changed the group list in the token - we must
-                * re-create it.
-                */
-
-               if (vuser && vuser->guest)
-                       is_guest = True;
-
-               token = create_nt_token(uid, gid, current_user.ngroups, current_user.groups, is_guest);
-               if (!token) {
-                       DEBUG(1, ("change_to_user: create_nt_token failed!\n"));
-                       return False;
-               }
-               must_free_token = True;
        }
        
-       set_sec_ctx(uid, gid, current_user.ngroups, current_user.groups, token);
+       set_sec_ctx(uid, gid, current_user.ut.ngroups, current_user.ut.groups,
+                   token);
 
        /*
         * Free the new token (as set_sec_ctx copies it).
         */
 
        if (must_free_token)
-               delete_nt_token(&token);
+               TALLOC_FREE(token);
 
        current_user.conn = conn;
        current_user.vuid = vuid;
@@ -343,8 +296,9 @@ BOOL become_authenticated_pipe_user(pipes_struct *p)
        if (!push_sec_ctx())
                return False;
 
-       set_sec_ctx(p->pipe_user.uid, p->pipe_user.gid, 
-                   p->pipe_user.ngroups, p->pipe_user.groups, p->pipe_user.nt_user_token);
+       set_sec_ctx(p->pipe_user.ut.uid, p->pipe_user.ut.gid, 
+                   p->pipe_user.ut.ngroups, p->pipe_user.ut.groups,
+                   p->pipe_user.nt_user_token);
 
        return True;
 }
@@ -466,4 +420,3 @@ BOOL unbecome_user(void)
        pop_conn_ctx();
        return True;
 }
-