[SCM] Samba Shared Repository - branch v3-0-test updated - release-3-0-29-81-gfbb1e2e

Jeremy Allison jra at samba.org
Thu Jul 3 17:29:10 GMT 2008


The branch, v3-0-test has been updated
       via  fbb1e2e358af892e121bb3e5e8587d4d5ace4132 (commit)
      from  e9737fded98933cddbbff91fd38600f4bcc99bb2 (commit)

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-0-test


- Log -----------------------------------------------------------------
commit fbb1e2e358af892e121bb3e5e8587d4d5ace4132
Author: Jeremy Allison <jra at samba.org>
Date:   Thu Jul 3 10:28:36 2008 -0700

    Patch from SATOH Fumiyasu <fumiyas at osstech.co.jp> for bug #5202. Re-activate "acl group control"
    parameter and make it only apply to owning group. Also added man page fix.
    Jeremy.

-----------------------------------------------------------------------

Summary of changes:
 docs-xml/smbdotconf/misc/dosfilemode.xml         |   17 ++++++-----
 docs-xml/smbdotconf/security/aclgroupcontrol.xml |    6 +++-
 source/param/loadparm.c                          |    2 +-
 source/smbd/posix_acls.c                         |   32 +++++++++++++--------
 4 files changed, 34 insertions(+), 23 deletions(-)


Changeset truncated at 500 lines:

diff --git a/docs-xml/smbdotconf/misc/dosfilemode.xml b/docs-xml/smbdotconf/misc/dosfilemode.xml
index ae3b475..e67ccd9 100644
--- a/docs-xml/smbdotconf/misc/dosfilemode.xml
+++ b/docs-xml/smbdotconf/misc/dosfilemode.xml
@@ -3,15 +3,16 @@
 		 type="boolean"
 		 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
 <description>
-	<para> The default behavior in Samba is to provide 
-	UNIX-like behavior where only the owner of a file/directory is 
+	<para> The default behavior in Samba is to provide
+	UNIX-like behavior where only the owner of a file/directory is
 	able to change the permissions on it.  However, this behavior
-	is often confusing to  DOS/Windows users.  Enabling this parameter 
-	allows a user who has write access to the file (by whatever 
-	means) to modify the permissions (including ACL) on it.  Note that a user
-	belonging to the group owning the file will not be allowed to
-	change permissions if the group is only granted read access.
-	Ownership of the file/directory may also be changed.</para>
+	is often confusing to  DOS/Windows users.  Enabling this parameter
+	allows a user who has write access to the file (by whatever
+	means, including an ACL permission) to modify the permissions
+	(including ACL) on it. Note that a user belonging to the group
+	owning the file will not be allowed to change permissions if
+	the group is only granted read access. Ownership of the
+	file/directory may also be changed.</para>
 </description>
 <value type="default">no</value>
 </samba:parameter>
diff --git a/docs-xml/smbdotconf/security/aclgroupcontrol.xml b/docs-xml/smbdotconf/security/aclgroupcontrol.xml
index e2600ca..6efd46d 100644
--- a/docs-xml/smbdotconf/security/aclgroupcontrol.xml
+++ b/docs-xml/smbdotconf/security/aclgroupcontrol.xml
@@ -30,8 +30,10 @@
 	</para>
 
 	<para>
-	This is parameter has been marked deprecated in Samba 3.0.23.  The same behavior is now
-	implemented by the <parameter moreinfo="none">dos filemode</parameter> option.
+	This is parameter has been was deprecated in Samba 3.0.23, but re-activated in
+	Samba 3.0.31 and above, as it now only controls permission changes if the user
+	is in the owning primary group. It is now no longer equivalent to the
+	<parameter moreinfo="none">dos filemode</parameter> option.
 	</para>
 
 </description>
diff --git a/source/param/loadparm.c b/source/param/loadparm.c
index 4f44088..85f0217 100644
--- a/source/param/loadparm.c
+++ b/source/param/loadparm.c
@@ -922,7 +922,7 @@ static struct parm_struct parm_table[] = {
 	{"writable", P_BOOLREV, P_LOCAL, &sDefault.bRead_only, NULL, NULL, FLAG_HIDE}, 
 
 	{"acl check permissions", P_BOOL, P_LOCAL, &sDefault.bAclCheckPermissions, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL | FLAG_SHARE},
-	{"acl group control", P_BOOL, P_LOCAL, &sDefault.bAclGroupControl, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL | FLAG_SHARE | FLAG_DEPRECATED },
+	{"acl group control", P_BOOL, P_LOCAL, &sDefault.bAclGroupControl, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL | FLAG_SHARE },
 	{"acl map full control", P_BOOL, P_LOCAL, &sDefault.bAclMapFullControl, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL | FLAG_SHARE},
 	{"create mask", P_OCTAL, P_LOCAL, &sDefault.iCreate_mask, NULL, NULL, FLAG_ADVANCED | FLAG_GLOBAL | FLAG_SHARE}, 
 	{"create mode", P_OCTAL, P_LOCAL, &sDefault.iCreate_mask, NULL, NULL, FLAG_HIDE}, 
diff --git a/source/smbd/posix_acls.c b/source/smbd/posix_acls.c
index f40a344..9913d5a 100644
--- a/source/smbd/posix_acls.c
+++ b/source/smbd/posix_acls.c
@@ -2289,18 +2289,26 @@ static BOOL current_user_in_group(gid_t gid)
 }
 
 /****************************************************************************
- Should we override a deny ?  Check deprecated 'acl group control'
- and 'dos filemode'
+ Should we override a deny ?  Check 'acl group control' and 'dos filemode'
 ****************************************************************************/
 
-static BOOL acl_group_override(connection_struct *conn, gid_t prim_gid)
+static BOOL acl_group_override(connection_struct *conn, gid_t prim_gid, const char *fname)
 {
-	if ( (errno == EACCES || errno == EPERM) 
-		&& (lp_acl_group_control(SNUM(conn)) || lp_dos_filemode(SNUM(conn)))
-		&& current_user_in_group(prim_gid)) 
-	{
+	SMB_STRUCT_STAT sbuf;
+
+	if ((errno != EPERM) && (errno != EACCES)) {
+		return False;
+	}
+
+	/* file primary group == user primary or supplementary group */
+	if (lp_acl_group_control(SNUM(conn)) && current_user_in_group(prim_gid)) {
 		return True;
-	} 
+	}
+
+	/* user has writeable permission */
+	if (lp_dos_filemode(SNUM(conn)) && can_write_to_file(conn, fname, &sbuf)) {
+		return True;
+	}
 
 	return False;
 }
@@ -2488,7 +2496,7 @@ static BOOL set_canon_ace_list(files_struct *fsp, canon_ace *the_ace, BOOL defau
 				*pacl_set_support = False;
 			}
 
-			if (acl_group_override(conn, prim_gid)) {
+			if (acl_group_override(conn, prim_gid, fsp->fsp_name)) {
 				int sret;
 
 				DEBUG(5,("set_canon_ace_list: acl group control on and current user in file %s primary group.\n",
@@ -2519,7 +2527,7 @@ static BOOL set_canon_ace_list(files_struct *fsp, canon_ace *the_ace, BOOL defau
 				*pacl_set_support = False;
 			}
 
-			if (acl_group_override(conn, prim_gid)) {
+			if (acl_group_override(conn, prim_gid, fsp->fsp_name)) {
 				int sret;
 
 				DEBUG(5,("set_canon_ace_list: acl group control on and current user in file %s primary group.\n",
@@ -3477,7 +3485,7 @@ BOOL set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 					if (SMB_VFS_SYS_ACL_DELETE_DEF_FILE(conn, fsp->fsp_name) == -1) {
 						int sret = -1;
 
-						if (acl_group_override(conn, sbuf.st_gid)) {
+						if (acl_group_override(conn, sbuf.st_gid, fsp->fsp_name)) {
 							DEBUG(5,("set_nt_acl: acl group control on and "
 								"current user in file %s primary group. Override delete_def_acl\n",
 								fsp->fsp_name ));
@@ -3524,7 +3532,7 @@ BOOL set_nt_acl(files_struct *fsp, uint32 security_info_sent, SEC_DESC *psd)
 
 					if(SMB_VFS_CHMOD(conn,fsp->fsp_name, posix_perms) == -1) {
 						int sret = -1;
-						if (acl_group_override(conn, sbuf.st_gid)) {
+						if (acl_group_override(conn, sbuf.st_gid, fsp->fsp_name)) {
 							DEBUG(5,("set_nt_acl: acl group control on and "
 								"current user in file %s primary group. Override chmod\n",
 								fsp->fsp_name ));


-- 
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