From: Chaskiel M Grundman <cg2v@andrew.cmu.edu>
Date: Tue, 11 Sep 2007 16:40:26 +0000 (+0000)
Subject: STABLE14-namei-protect-against-extra-files-20070911
X-Git-Tag: openafs-stable-1_4_5-pre1~12
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=d60ad4ac07ffe3c63d5d150c7dfe353c2abf74f3;p=packages%2Fo%2Fopenafs.git

STABLE14-namei-protect-against-extra-files-20070911


if someone is monkeying in the filesystem, sometimes they shoot themselves. save them if they renamed foo to foo.bak (where foo is a full 64 bits)


(cherry picked from commit c22f945bb783ba003c12ce73574568a9c4b80304)
---

diff --git a/src/vol/namei_ops.c b/src/vol/namei_ops.c
index c818603b5..240e4be27 100644
--- a/src/vol/namei_ops.c
+++ b/src/vol/namei_ops.c
@@ -1447,6 +1447,7 @@ DecodeInode(char *dpath, char *name, struct ViceInodeInfo *info, int volid)
     char fpath[512];
     struct afs_stat status;
     int parm, tag;
+    lb64_string_t check;
 
     (void)strcpy(fpath, dpath);
     (void)strcat(fpath, "/");
@@ -1459,6 +1460,10 @@ DecodeInode(char *dpath, char *name, struct ViceInodeInfo *info, int volid)
     info->byteCount = status.st_size;
     info->inodeNumber = (Inode) flipbase64_to_int64(name);
 
+    int64_to_flipbase64(check, info->inodeNumber);
+    if (strcmp(name, check))
+	return -1;
+    
     GetOGMFromStat(&status, &parm, &tag);
     if ((info->inodeNumber & NAMEI_INODESPECIAL) == NAMEI_INODESPECIAL) {
 	/* p1 - vid, p2 - -1, p3 - type, p4 - rwvid */