Fix data corruption bug

[netatalk.git] / etc / afpd / file.c

diff --git a/etc/afpd/file.c b/etc/afpd/file.c
index 9fe0185108454659cdd99de28b0c4195bb0815fa..407dc6f9d9e5855e1bdde254ae888acf19e9956b 100644 (file)
--- a/etc/afpd/file.c
+++ b/etc/afpd/file.c
@@ -239,20 +239,16 @@ restart:
                         vol->v_path);
                     vol->v_cdb = cnid_open(vol->v_path, vol->v_umask, "tdb", flags, NULL, NULL);
                     if (vol->v_cdb) {
-                        /* set ro mode*/
-                        vol->v_flags |= AFPVOL_RO;
-#ifdef SERVERTEXT
-                        /* kill ourself with SIGUSR2 aka msg pending */
-                        setmessage("Something wrong with the volume's CNID DB, using temporary CNID DB instead."
-                                   "Check server messages for details. Switching to read-only mode.");
-                        kill(getpid(), SIGUSR2);
-#endif
-                        goto restart; /* not try again with the temp CNID db */
+                        if (!(vol->v_flags & AFPVOL_TM)) {
+                            vol->v_flags |= AFPVOL_RO;
+                            setmessage("Something wrong with the volume's CNID DB, using temporary CNID DB instead."
+                                       "Check server messages for details. Switching to read-only mode.");
+                            kill(getpid(), SIGUSR2);
+                        }
+                        goto restart; /* now try again with the temp CNID db */
                     } else {
-#ifdef SERVERTEXT
                         setmessage("Something wrong with the volume's CNID DB, using temporary CNID DB failed too!"
                                    "Check server messages for details, can't recover from this state!");
-#endif
                     }
                 }
                 afp_errno = AFPERR_MISC;
@@ -592,11 +588,8 @@ int getmetadata(const AFPObj *obj,
 }
                 
 /* ----------------------- */
-int getfilparams(const AFPObj *obj,
-                 struct vol *vol,
-                 uint16_t bitmap,
-                 struct path *path, struct dir *dir, 
-                 char *buf, size_t *buflen )
+int getfilparams(const AFPObj *obj, struct vol *vol, uint16_t bitmap, struct path *path,
+                 struct dir *dir, char *buf, size_t *buflen, int in_enumerate)
 {
     struct adouble     ad, *adp;
     int                 opened = 0;
@@ -610,7 +603,12 @@ int getfilparams(const AFPObj *obj,
 
     if (opened) {
         char *upath;
-        flags = (bitmap & (1 << FILPBIT_ATTR)) ? ADFLAGS_CHECK_OF : 0;
+        /*
+         * Dont check for and resturn open fork attributes when enumerating
+         * This saves a lot of syscalls, the client will hopefully only use the result
+         * in FPGetFileParms where we return the correct value
+         */
+        flags = (!in_enumerate &&(bitmap & (1 << FILPBIT_ATTR))) ? ADFLAGS_CHECK_OF : 0;
 
         adp = of_ad(vol, path, &ad);
         upath = path->u_name;
@@ -703,6 +701,7 @@ int afp_createfile(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_,
             return( AFPERR_ACCESS );
         case EDQUOT:
         case ENOSPC :
+           LOG(log_info, logtype_afpd, "afp_createfile: DISK FULL");
             return( AFPERR_DFULL );
         default :
             return( AFPERR_PARAM );
@@ -1256,6 +1255,19 @@ int afp_copyfile(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, si
     if (ad_open(adp, s_path->u_name, ADFLAGS_DF | ADFLAGS_HF | ADFLAGS_NOHF | ADFLAGS_RDONLY | ADFLAGS_SETSHRMD) < 0) {
         return AFPERR_DENYCONF;
     }
+#ifdef HAVE_FSHARE_T
+    fshare_t shmd;
+    shmd.f_access = F_RDACC;
+    shmd.f_deny = F_NODNY;
+    if (fcntl(ad_data_fileno(adp), F_SHARE, &shmd) != 0) {
+        retvalue = AFPERR_DENYCONF;
+        goto copy_exit;
+    }
+    if (AD_RSRC_OPEN(adp) && fcntl(ad_reso_fileno(adp), F_SHARE, &shmd) != 0) {
+        retvalue = AFPERR_DENYCONF;
+        goto copy_exit;
+    }
+#endif
     denyreadset = (ad_testlock(adp, ADEID_DFORK, AD_FILELOCK_DENY_RD) != 0 || 
                   ad_testlock(adp, ADEID_RFORK, AD_FILELOCK_DENY_RD) != 0 );
 
@@ -1424,6 +1436,7 @@ done:
     case EDQUOT:
     case EFBIG:
     case ENOSPC:
+       LOG(log_info, logtype_afpd, "copyfile: DISK FULL");
         return AFPERR_DFULL;
     case ENOENT:
         return AFPERR_NOOBJ;
@@ -1779,7 +1792,7 @@ retry:
     }
     path.id = cnid;
     if (AFP_OK != (err = getfilparams(obj, vol, bitmap, &path , curdir, 
-                                      rbuf + sizeof(bitmap), &buflen))) {
+                                      rbuf + sizeof(bitmap), &buflen, 0))) {
         return err;
     }
     *rbuflen = buflen + sizeof(bitmap);