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authorsmh <smh@FreeBSD.org>2013-05-24 11:27:06 +0000
committersmh <smh@FreeBSD.org>2013-05-24 11:27:06 +0000
commit21ad41e520fe46e7a1e543179051cdcd9b6d2943 (patch)
tree2b08b0b7e8b9574e8ca5a46c14799aa6c8d1bcb9 /sys/cam/scsi
parent6023beb9dec8d71f3007154d4092db0eca926383 (diff)
downloadFreeBSD-src-21ad41e520fe46e7a1e543179051cdcd9b6d2943.zip
FreeBSD-src-21ad41e520fe46e7a1e543179051cdcd9b6d2943.tar.gz
Enforce validation on the selected delete method via sysctl.
This prevents users from selecting a delete method which may cause corruption e.g. MPS WS16 on pre P14 firmware. Reviewed by: pjd (mentor) Approved by: pjd (mentor) MFC after: 2 days
Diffstat (limited to 'sys/cam/scsi')
-rw-r--r--sys/cam/scsi/scsi_da.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/cam/scsi/scsi_da.c b/sys/cam/scsi/scsi_da.c
index de11028..661c059 100644
--- a/sys/cam/scsi/scsi_da.c
+++ b/sys/cam/scsi/scsi_da.c
@@ -1780,7 +1780,8 @@ dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
if (error != 0 || req->newptr == NULL)
return (error);
for (i = 0; i <= DA_DELETE_MAX; i++) {
- if (strcmp(buf, da_delete_method_names[i]) != 0)
+ if (!(softc->delete_available & (1 << i)) ||
+ strcmp(buf, da_delete_method_names[i]) != 0)
continue;
dadeletemethodset(softc, i);
return (0);
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