Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-26 Thread Joerg Schilling
Richard L. Hamilton rlha...@smart.net wrote: Is the implementation of hsfs therefore known to be robust against kernel crashes due to a corrupted filesystem, or is it simply that the demand is so high for lofi plus hsfs? What about udfs - if one wants to use CD images, presumably one might

Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-25 Thread John Levon
On Sat, Apr 24, 2010 at 12:17:02AM -0700, Richard L. Hamilton wrote: one wants to use CD images, presumably one might want do use DVD-ROM images as well. P.S. Will mounts in a non-global zone force nodev, or will unauthorized device nodes be disabled by some other means? Mounts are

Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-25 Thread John Levon
On Sat, Apr 24, 2010 at 12:13:02AM -0700, Richard L. Hamilton wrote: Is the implementation of hsfs therefore known to be robust against kernel crashes due to a corrupted filesystem, or is it simply Yes. that the demand is so high for lofi plus hsfs? What about udfs - if one wants to use CD

Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-25 Thread Richard L. Hamilton
[...] Therefore, mounts within a non-global zone are restricted to a given allowed list of filesystems, as described in Section 5 and Section 6. This applies to all mounts not just lofi ones. 5. New vfs flag VSW_ZMOUNT The default list of allowed filesystems is based upon a new

Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-25 Thread John Levon
On Sun, Apr 25, 2010 at 10:26:15AM -0700, Richard L. Hamilton wrote: This seems to imply the possibility that a physical CD-ROM (at least; perhaps even CD reader/writer) device could be assigned to a non-global zone with reasonable safety. Has that been considered/examined/documented?

Re: lofi(7D) in non global zones [PSARC/2010/144 FastTrack timeout 04/30/2

2010-04-24 Thread Richard L. Hamilton
[...] Allowing lofi devices into non-global zones introduces a security issue. Some filesystems (notably UFS) are not sufficiently protected against corrupted or maliciously constructed filesystem images, which lofi allows the zone root user to modify. This could potentially lead to a