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authorJeremy Allison <jra@samba.org>2004-11-17 18:56:48 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 10:53:19 -0500
commit7eaba1f52881b8595ca2cfe750cf5d6c62de4cda (patch)
treee2043de851b187c9ab36985b9fe69ef6603116ca /source3/smbd
parent672b22ae43682b752a6af1b8aabf996a9823e4b8 (diff)
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r3816: Added fn to remove an ACL from a file. Now need client code to test this.
How do the share mask/modes fit into this code... Need to think about this. Jeremy. (This used to be commit 1aa1c2f489f5b92c3696e7b9123061d91babc34e)
Diffstat (limited to 'source3/smbd')
-rw-r--r--source3/smbd/posix_acls.c130
1 files changed, 128 insertions, 2 deletions
diff --git a/source3/smbd/posix_acls.c b/source3/smbd/posix_acls.c
index c650243f23..9b7c39c00e 100644
--- a/source3/smbd/posix_acls.c
+++ b/source3/smbd/posix_acls.c
@@ -3452,6 +3452,7 @@ static BOOL unix_ex_wire_to_tagtype(unsigned char wire_tt, SMB_ACL_TAG_T *p_tt)
/****************************************************************************
Create a new POSIX acl from wire permissions.
+ FIXME ! How does the share mask/mode fit into this.... ?
****************************************************************************/
static SMB_ACL_T create_posix_acl_from_wire(connection_struct *conn, uint16 num_acls, const char *pdata)
@@ -3574,6 +3575,131 @@ BOOL set_unix_posix_default_acl(connection_struct *conn, const char *fname, SMB_
}
/****************************************************************************
+ Remove an ACL from a file. As we don't have acl_delete_entry() available
+ we must read the current acl and copy all entries except MASK, USER and GROUP
+ to a new acl, then set that. This (at least on Linux) causes any ACL to be
+ removed.
+ FIXME ! How does the share mask/mode fit into this.... ?
+****************************************************************************/
+
+static BOOL remove_posix_acl(connection_struct *conn, files_struct *fsp, const char *fname)
+{
+ SMB_ACL_T file_acl = NULL;
+ int entry_id = SMB_ACL_FIRST_ENTRY;
+ SMB_ACL_ENTRY_T entry;
+ BOOL ret = False;
+ /* Create a new ACL with only 3 entries, u/g/w. */
+ SMB_ACL_T new_file_acl = SMB_VFS_SYS_ACL_INIT(conn, 3);
+ SMB_ACL_ENTRY_T user_ent = NULL;
+ SMB_ACL_ENTRY_T group_ent = NULL;
+ SMB_ACL_ENTRY_T other_ent = NULL;
+
+ if (new_file_acl == NULL) {
+ DEBUG(5,("remove_posix_acl: failed to init new ACL with 3 entries for file %s.\n", fname));
+ return False;
+ }
+
+ /* Now create the u/g/w entries. */
+ if (SMB_VFS_SYS_ACL_CREATE_ENTRY(conn, &new_file_acl, &user_ent) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to create user entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+ if (SMB_VFS_SYS_ACL_SET_TAG_TYPE(conn, user_ent, SMB_ACL_USER_OBJ) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to set user entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ if (SMB_VFS_SYS_ACL_CREATE_ENTRY(conn, &new_file_acl, &group_ent) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to create group entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+ if (SMB_VFS_SYS_ACL_SET_TAG_TYPE(conn, group_ent, SMB_ACL_GROUP_OBJ) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to set group entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ if (SMB_VFS_SYS_ACL_CREATE_ENTRY(conn, &new_file_acl, &other_ent) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to create other entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+ if (SMB_VFS_SYS_ACL_SET_TAG_TYPE(conn, other_ent, SMB_ACL_OTHER) == -1) {
+ DEBUG(5,("remove_posix_acl: Failed to set other entry for file %s. (%s)\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ /* Get the current file ACL. */
+ if (fsp && fsp->fd != -1) {
+ file_acl = SMB_VFS_SYS_ACL_GET_FD(fsp, fsp->fd);
+ } else {
+ file_acl = SMB_VFS_SYS_ACL_GET_FILE( conn, fname, SMB_ACL_TYPE_ACCESS);
+ }
+
+ if (file_acl == NULL) {
+ /* This is only returned if an error occurred. Even for a file with
+ no acl a u/g/w acl should be returned. */
+ DEBUG(5,("remove_posix_acl: failed to get ACL from file %s (%s).\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ while ( SMB_VFS_SYS_ACL_GET_ENTRY(conn, file_acl, entry_id, &entry) == 1) {
+ SMB_ACL_TAG_T tagtype;
+ SMB_ACL_PERMSET_T permset;
+
+ /* get_next... */
+ if (entry_id == SMB_ACL_FIRST_ENTRY)
+ entry_id = SMB_ACL_NEXT_ENTRY;
+
+ if (SMB_VFS_SYS_ACL_GET_TAG_TYPE(conn, entry, &tagtype) == -1) {
+ DEBUG(5,("remove_posix_acl: failed to get tagtype from ACL on file %s (%s).\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ if (SMB_VFS_SYS_ACL_GET_PERMSET(conn, entry, &permset) == -1) {
+ DEBUG(5,("remove_posix_acl: failed to get permset from ACL on file %s (%s).\n",
+ fname, strerror(errno) ));
+ goto done;
+ }
+
+ if (tagtype == SMB_ACL_USER_OBJ) {
+ if (SMB_VFS_SYS_ACL_SET_PERMSET(conn, user_ent, permset) == -1) {
+ DEBUG(5,("remove_posix_acl: failed to set permset from ACL on file %s (%s).\n",
+ fname, strerror(errno) ));
+ }
+ } else if (tagtype == SMB_ACL_GROUP_OBJ) {
+ if (SMB_VFS_SYS_ACL_SET_PERMSET(conn, group_ent, permset) == -1) {
+ DEBUG(5,("remove_posix_acl: failed to set permset from ACL on file %s (%s).\n",
+ fname, strerror(errno) ));
+ }
+ } else if (tagtype == SMB_ACL_OTHER) {
+ if (SMB_VFS_SYS_ACL_SET_PERMSET(conn, other_ent, permset) == -1) {
+ DEBUG(5,("remove_posix_acl: failed to set permset from ACL on file %s (%s).\n",
+ fname, strerror(errno) ));
+ }
+ }
+ }
+
+ ret = True;
+
+ done:
+
+ if (file_acl) {
+ SMB_VFS_SYS_ACL_FREE_ACL(conn, file_acl);
+ }
+ if (new_file_acl) {
+ SMB_VFS_SYS_ACL_FREE_ACL(conn, new_file_acl);
+ }
+ return ret;
+}
+
+/****************************************************************************
Calls from UNIX extensions - POSIX ACL set.
If num_dir_acls == 0 then read/modify/write acl after removing all entries
except SMB_ACL_USER_OBJ, SMB_ACL_GROUP_OBJ, SMB_ACL_OTHER.
@@ -3584,8 +3710,8 @@ BOOL set_unix_posix_acl(connection_struct *conn, files_struct *fsp, const char *
SMB_ACL_T file_acl = NULL;
if (!num_acls) {
- /* TODO !!! */
- /* Remove the default ACL. */
+ /* Remove the ACL from the file. */
+ return remove_posix_acl(conn, fsp, fname);
}
if ((file_acl = create_posix_acl_from_wire(conn, num_acls, pdata)) == NULL) {