Il 13/11/2012 18:25, Paolo Bonzini ha scritto: > Privilege restrictions for SG_IO right now apply without distinction to > all devices, based on the single capability CAP_SYS_RAWIO. This is a very > broad capability, and makes it difficult to give SG_IO access to trusted > clients that need access to persistent reservations, trim/discard, or > vendor-specific commands. One problem here is that CAP_SYS_RAWIO allows > to escape a partition and issue commands that affect the full disk, > thus making DAC almost useless. > > For simplicity, this series attempts to solve one case only: you want > to pass through almost everything, but still run as confined as possible. > This is for example the case for virtualization, where more complex > filtering can be done just as easily in userspace, in the virtual > machine monitor. (This does mean the filter can be subverted if the > guest can escape the QEMU jail, but a more generic approach involving > a bitmap was NACKed). > > Ok for 3.8? Ping... Jens, I haven't seen any pull request for 3.8 from you. Are these patches on your radar? Tejun acked both of them. Paolo > v2->v3: change bitmap filter to boolean > > Paolo Bonzini (2): > sg_io: pass request_queue to blk_verify_command > sg_io: introduce unpriv_sgio queue flag > > block/blk-sysfs.c | 32 ++++++++++++++++++++++++++++++++ > block/bsg.c | 2 +- > block/scsi_ioctl.c | 9 +++++---- > drivers/scsi/sg.c | 3 ++- > include/linux/blkdev.h | 6 +++++- > 5 files changed, 45 insertions(+), 7 deletions(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
