Blob Blame History Raw
diff -up openssh-5.2p1/session.c.homechroot openssh-5.2p1/session.c
--- openssh-5.2p1/session.c.homechroot	2009-06-23 11:33:36.052163641 +0200
+++ openssh-5.2p1/session.c	2009-06-23 11:33:36.372159228 +0200
@@ -1398,6 +1398,8 @@ do_nologin(struct passwd *pw)
 	}
 }
 
+int	chroot_no_tree = 0;
+
 /*
  * Chroot into a directory after checking it for safety: all path components
  * must be root-owned directories with strict permissions.
@@ -1408,6 +1410,7 @@ safely_chroot(const char *path, uid_t ui
 	const char *cp;
 	char component[MAXPATHLEN];
 	struct stat st;
+	int last;
 
 	if (*path != '/')
 		fatal("chroot path does not begin at root");
@@ -1419,7 +1422,7 @@ safely_chroot(const char *path, uid_t ui
 	 * root-owned directory with strict permissions.
 	 */
 	for (cp = path; cp != NULL;) {
-		if ((cp = strchr(cp, '/')) == NULL)
+		if (((last = ((cp = strchr(cp, '/')) == NULL))))
 			strlcpy(component, path, sizeof(component));
 		else {
 			cp++;
@@ -1432,13 +1435,15 @@ safely_chroot(const char *path, uid_t ui
 		if (stat(component, &st) != 0)
 			fatal("%s: stat(\"%s\"): %s", __func__,
 			    component, strerror(errno));
-		if (st.st_uid != 0 || (st.st_mode & 022) != 0)
+		if ((st.st_uid != 0 || (st.st_mode & 022) != 0) && !(last && st.st_uid == uid))
 			fatal("bad ownership or modes for chroot "
 			    "directory %s\"%s\"", 
 			    cp == NULL ? "" : "component ", component);
 		if (!S_ISDIR(st.st_mode))
 			fatal("chroot path %s\"%s\" is not a directory",
 			    cp == NULL ? "" : "component ", component);
+		if (st.st_uid != uid)
+			++chroot_no_tree;
 
 	}
 
diff -up openssh-5.2p1/sftp-server.c.homechroot openssh-5.2p1/sftp-server.c
--- openssh-5.2p1/sftp-server.c.homechroot	2008-07-04 06:10:19.000000000 +0200
+++ openssh-5.2p1/sftp-server.c	2009-06-23 11:33:36.374154561 +0200
@@ -887,6 +887,7 @@ process_opendir(void)
 static void
 process_readdir(void)
 {
+	extern int chroot_no_tree;
 	DIR *dirp;
 	struct dirent *dp;
 	char *path;
@@ -920,7 +921,7 @@ process_readdir(void)
 				continue;
 			stat_to_attrib(&st, &(stats[count].attrib));
 			stats[count].name = xstrdup(dp->d_name);
-			stats[count].long_name = ls_file(dp->d_name, &st, 0);
+			stats[count].long_name = ls_file(dp->d_name, &st, chroot_no_tree);
 			count++;
 			/* send up to 100 entries in one message */
 			/* XXX check packet size instead */
diff -up openssh-5.2p1/sftp-server-main.c.homechroot openssh-5.2p1/sftp-server-main.c
--- openssh-5.2p1/sftp-server-main.c.homechroot	2009-02-21 22:47:02.000000000 +0100
+++ openssh-5.2p1/sftp-server-main.c	2009-06-23 11:33:36.378159051 +0200
@@ -27,6 +27,8 @@
 #include "sftp.h"
 #include "misc.h"
 
+int chroot_no_tree = 0;
+
 void
 cleanup_exit(int i)
 {