Re: [PATCH V6 0/4] Add SELinux SCTP protocol support

[Neil Horman]

On Wed, Feb 14, 2018 at 02:19:03PM -0500, Paul Moore wrote:
> On Tue, Feb 13, 2018 at 3:52 PM, Richard Haines
>  wrote:
> > These patches have been built on Fedora 27 with kernel-4.16.0-0.rc1 plus
> > the following userspace patches to enable testing:
> >
> > 1) Updates to libsepol 2.7 to support the sctp portcon statement.
> >The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  selinux-Add-support-for-the-SCTP-portcon-keyword.patch
> >
> > 2) Updates to the SELinux Test Suite adding SCTP tests. Please read the
> >selinux-testsuite/README.sctp for details. The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  selinux-testsuite-Add-SCTP-test-support.patch
> >
> > 3) Updates to lksctp-tools that show SELinux info in sctp_darn and
> >sctp_test. It also contains a minor patch for test_1_to_1_connect.c
> >as when CIPSO/CALIPSO configured, NetLabel returns a different error
> >code for illegal addresses in test 5. The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  lksctp-tools-Add-SELinux-support-to-sctp_test-and-sc.patch
> >
> > All SCTP lksctp-tools/src/func_tests run correctly in enforcing mode.
> >
> > All SCTP regression tests "./sctp-tests run" run correctly in enforcing
> > mode. These tests are obtained from: https://github.com/sctp/sctp-tests
> >
> > The selinux-testsuite patch also adds remote tests (that need some manual
> > configuration). These are useful for testing CIPSO/CALIPSO over a network
> > with a number of categories to produce large ip option fields with various
> > message sizes forcing fragmentation etc..
> >
> > Changes since RFC Patch:
> > Removed the NetLabel patch (was [RFC PATCH 4/5] netlabel: Add SCTP support)
> > as re-engineered. However this patchset will require the NetLabel
> > patch at [1] to fully run the SCTP selinux-testsuite.
> >
> > V1 Changes:
> > PATCH 1/4
> > Remove unused parameter from security_sctp_assoc_request().
> > Reformat and update LSM-sctp.rst documentation.
> > PATCH 2/4
> > Add variables and RCU locks as requested in [2] to support IP options.
> > PATCH 3/4
> > Added security_sctp_assoc_request() hook to sctp_sf_do_unexpected_init()
> > and sctp_sf_do_5_2_4_dupcook().
> > Removed security_sctp_assoc_request() hook from sctp_sf_do_5_1C_ack() as
> > no longer required.
> > PATCH 4/4
> > Reformat and update SELinux-sctp.rst documentation.
> > Remove bindx and connectx permissions.
> > Rework selinux_socket_connect() and selinux_netlbl_socket_connect() to
> > utilise helpers for code reuse.
> > Add spinlock to selinux_sctp_assoc_request().
> > Remove unused parameter from security_sctp_assoc_request().
> > Use address->sa_family == AF_INET in *_bind and *_connect to ensure
> > correct address type.
> > Minor cleanups.
> >
> > V2 Changes:
> > PATCH 4/4 - Remove spin lock from selinux_sctp_assoc_request()
> > PATCH 4/4 - Fix selinux_sctp_sk_clone() kbuild test robot catch [3]
> >
> > V3 Changes:
> > PATCH 2/4 - Account for IP options length in sctp.h sctp_frag_point() by
> > Marcelo
> >
> > V4 Changes:
> > PATCH 1/4 - Move specific SELinux descriptions from LSM-sctp.rst and
> > lsm_hooks.h to SELinux-sctp.rst in PATCH 4/4
> > PATCH 4/4 - Rename selinux_netlbl_sctp_socket_connect() to
> > selinux_netlbl_socket_connect_locked() and move description comments to
> > selinux_sctp_bind_connect()
> >
> > V5 Change: Rework selinux_netlbl_socket_connect() and
> > selinux_netlbl_socket_connect_locked as requested by Paul.
> >
> > V6 Changes:
> > Rework SCTP patches 2/4 and 3/4 as there have been major SCTP updates since
> > kernel 4.14.
> >
> > [1] https://marc.info/?l=selinux=151061619115945=2
> > [2] https://marc.info/?l=selinux=150962470215797=2
> > [3] https://marc.info/?l=selinux=151198281817779=2
> >
> > Richard Haines (4):
> >   security: Add support for SCTP security hooks
> >   sctp: Add ip option support
> >   sctp: Add LSM hooks
> >   selinux: Add SCTP support
> 
> Marcelo, or any other SCTP folks, do the SCTP changes still look okay
> to you?  I'd like to merge these into the selinux/next tree by the end
> of the week ...
> 
I had a few comments that I just posted.
Neil

> -- 
> paul moore
> www.paul-moore.com
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sctp" in
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> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Re: [PATCH V6 0/4] Add SELinux SCTP protocol support

[Marcelo Ricardo Leitner]

On Wed, Feb 14, 2018 at 02:19:03PM -0500, Paul Moore wrote:
> On Tue, Feb 13, 2018 at 3:52 PM, Richard Haines
>  wrote:
> > These patches have been built on Fedora 27 with kernel-4.16.0-0.rc1 plus
> > the following userspace patches to enable testing:
> >
> > 1) Updates to libsepol 2.7 to support the sctp portcon statement.
> >The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  selinux-Add-support-for-the-SCTP-portcon-keyword.patch
> >
> > 2) Updates to the SELinux Test Suite adding SCTP tests. Please read the
> >selinux-testsuite/README.sctp for details. The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  selinux-testsuite-Add-SCTP-test-support.patch
> >
> > 3) Updates to lksctp-tools that show SELinux info in sctp_darn and
> >sctp_test. It also contains a minor patch for test_1_to_1_connect.c
> >as when CIPSO/CALIPSO configured, NetLabel returns a different error
> >code for illegal addresses in test 5. The patch is available from:
> >  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
> >  lksctp-tools-Add-SELinux-support-to-sctp_test-and-sc.patch
> >
> > All SCTP lksctp-tools/src/func_tests run correctly in enforcing mode.
> >
> > All SCTP regression tests "./sctp-tests run" run correctly in enforcing
> > mode. These tests are obtained from: https://github.com/sctp/sctp-tests
> >
> > The selinux-testsuite patch also adds remote tests (that need some manual
> > configuration). These are useful for testing CIPSO/CALIPSO over a network
> > with a number of categories to produce large ip option fields with various
> > message sizes forcing fragmentation etc..
> >
> > Changes since RFC Patch:
> > Removed the NetLabel patch (was [RFC PATCH 4/5] netlabel: Add SCTP support)
> > as re-engineered. However this patchset will require the NetLabel
> > patch at [1] to fully run the SCTP selinux-testsuite.
> >
> > V1 Changes:
> > PATCH 1/4
> > Remove unused parameter from security_sctp_assoc_request().
> > Reformat and update LSM-sctp.rst documentation.
> > PATCH 2/4
> > Add variables and RCU locks as requested in [2] to support IP options.
> > PATCH 3/4
> > Added security_sctp_assoc_request() hook to sctp_sf_do_unexpected_init()
> > and sctp_sf_do_5_2_4_dupcook().
> > Removed security_sctp_assoc_request() hook from sctp_sf_do_5_1C_ack() as
> > no longer required.
> > PATCH 4/4
> > Reformat and update SELinux-sctp.rst documentation.
> > Remove bindx and connectx permissions.
> > Rework selinux_socket_connect() and selinux_netlbl_socket_connect() to
> > utilise helpers for code reuse.
> > Add spinlock to selinux_sctp_assoc_request().
> > Remove unused parameter from security_sctp_assoc_request().
> > Use address->sa_family == AF_INET in *_bind and *_connect to ensure
> > correct address type.
> > Minor cleanups.
> >
> > V2 Changes:
> > PATCH 4/4 - Remove spin lock from selinux_sctp_assoc_request()
> > PATCH 4/4 - Fix selinux_sctp_sk_clone() kbuild test robot catch [3]
> >
> > V3 Changes:
> > PATCH 2/4 - Account for IP options length in sctp.h sctp_frag_point() by
> > Marcelo
> >
> > V4 Changes:
> > PATCH 1/4 - Move specific SELinux descriptions from LSM-sctp.rst and
> > lsm_hooks.h to SELinux-sctp.rst in PATCH 4/4
> > PATCH 4/4 - Rename selinux_netlbl_sctp_socket_connect() to
> > selinux_netlbl_socket_connect_locked() and move description comments to
> > selinux_sctp_bind_connect()
> >
> > V5 Change: Rework selinux_netlbl_socket_connect() and
> > selinux_netlbl_socket_connect_locked as requested by Paul.
> >
> > V6 Changes:
> > Rework SCTP patches 2/4 and 3/4 as there have been major SCTP updates since
> > kernel 4.14.
> >
> > [1] https://marc.info/?l=selinux=151061619115945=2
> > [2] https://marc.info/?l=selinux=150962470215797=2
> > [3] https://marc.info/?l=selinux=151198281817779=2
> >
> > Richard Haines (4):
> >   security: Add support for SCTP security hooks
> >   sctp: Add ip option support
> >   sctp: Add LSM hooks
> >   selinux: Add SCTP support
> 
> Marcelo, or any other SCTP folks, do the SCTP changes still look okay
> to you?  I'd like to merge these into the selinux/next tree by the end
> of the week ...

Other than the issue on patch 2/4, patchset LGTM yes.
(Not really happy with the casts to remove the const attribute on
patch 3, but I don't see other way out)

Thanks,
Marcelo

Re: [PATCH V6 0/4] Add SELinux SCTP protocol support

[David Miller]

SCTP folks, please review the SCTP parts that add the IP option
support.

Thank you.

Re: [PATCH V6 0/4] Add SELinux SCTP protocol support

[Paul Moore]

On Tue, Feb 13, 2018 at 3:52 PM, Richard Haines
 wrote:
> These patches have been built on Fedora 27 with kernel-4.16.0-0.rc1 plus
> the following userspace patches to enable testing:
>
> 1) Updates to libsepol 2.7 to support the sctp portcon statement.
>The patch is available from:
>  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
>  selinux-Add-support-for-the-SCTP-portcon-keyword.patch
>
> 2) Updates to the SELinux Test Suite adding SCTP tests. Please read the
>selinux-testsuite/README.sctp for details. The patch is available from:
>  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
>  selinux-testsuite-Add-SCTP-test-support.patch
>
> 3) Updates to lksctp-tools that show SELinux info in sctp_darn and
>sctp_test. It also contains a minor patch for test_1_to_1_connect.c
>as when CIPSO/CALIPSO configured, NetLabel returns a different error
>code for illegal addresses in test 5. The patch is available from:
>  http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
>  lksctp-tools-Add-SELinux-support-to-sctp_test-and-sc.patch
>
> All SCTP lksctp-tools/src/func_tests run correctly in enforcing mode.
>
> All SCTP regression tests "./sctp-tests run" run correctly in enforcing
> mode. These tests are obtained from: https://github.com/sctp/sctp-tests
>
> The selinux-testsuite patch also adds remote tests (that need some manual
> configuration). These are useful for testing CIPSO/CALIPSO over a network
> with a number of categories to produce large ip option fields with various
> message sizes forcing fragmentation etc..
>
> Changes since RFC Patch:
> Removed the NetLabel patch (was [RFC PATCH 4/5] netlabel: Add SCTP support)
> as re-engineered. However this patchset will require the NetLabel
> patch at [1] to fully run the SCTP selinux-testsuite.
>
> V1 Changes:
> PATCH 1/4
> Remove unused parameter from security_sctp_assoc_request().
> Reformat and update LSM-sctp.rst documentation.
> PATCH 2/4
> Add variables and RCU locks as requested in [2] to support IP options.
> PATCH 3/4
> Added security_sctp_assoc_request() hook to sctp_sf_do_unexpected_init()
> and sctp_sf_do_5_2_4_dupcook().
> Removed security_sctp_assoc_request() hook from sctp_sf_do_5_1C_ack() as
> no longer required.
> PATCH 4/4
> Reformat and update SELinux-sctp.rst documentation.
> Remove bindx and connectx permissions.
> Rework selinux_socket_connect() and selinux_netlbl_socket_connect() to
> utilise helpers for code reuse.
> Add spinlock to selinux_sctp_assoc_request().
> Remove unused parameter from security_sctp_assoc_request().
> Use address->sa_family == AF_INET in *_bind and *_connect to ensure
> correct address type.
> Minor cleanups.
>
> V2 Changes:
> PATCH 4/4 - Remove spin lock from selinux_sctp_assoc_request()
> PATCH 4/4 - Fix selinux_sctp_sk_clone() kbuild test robot catch [3]
>
> V3 Changes:
> PATCH 2/4 - Account for IP options length in sctp.h sctp_frag_point() by
> Marcelo
>
> V4 Changes:
> PATCH 1/4 - Move specific SELinux descriptions from LSM-sctp.rst and
> lsm_hooks.h to SELinux-sctp.rst in PATCH 4/4
> PATCH 4/4 - Rename selinux_netlbl_sctp_socket_connect() to
> selinux_netlbl_socket_connect_locked() and move description comments to
> selinux_sctp_bind_connect()
>
> V5 Change: Rework selinux_netlbl_socket_connect() and
> selinux_netlbl_socket_connect_locked as requested by Paul.
>
> V6 Changes:
> Rework SCTP patches 2/4 and 3/4 as there have been major SCTP updates since
> kernel 4.14.
>
> [1] https://marc.info/?l=selinux=151061619115945=2
> [2] https://marc.info/?l=selinux=150962470215797=2
> [3] https://marc.info/?l=selinux=151198281817779=2
>
> Richard Haines (4):
>   security: Add support for SCTP security hooks
>   sctp: Add ip option support
>   sctp: Add LSM hooks
>   selinux: Add SCTP support

Marcelo, or any other SCTP folks, do the SCTP changes still look okay
to you?  I'd like to merge these into the selinux/next tree by the end
of the week ...

-- 
paul moore
www.paul-moore.com

[PATCH V6 0/4] Add SELinux SCTP protocol support

[Richard Haines via Selinux]

These patches have been built on Fedora 27 with kernel-4.16.0-0.rc1 plus
the following userspace patches to enable testing:

1) Updates to libsepol 2.7 to support the sctp portcon statement.
   The patch is available from:
 http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
 selinux-Add-support-for-the-SCTP-portcon-keyword.patch

2) Updates to the SELinux Test Suite adding SCTP tests. Please read the
   selinux-testsuite/README.sctp for details. The patch is available from:
 http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
 selinux-testsuite-Add-SCTP-test-support.patch

3) Updates to lksctp-tools that show SELinux info in sctp_darn and
   sctp_test. It also contains a minor patch for test_1_to_1_connect.c
   as when CIPSO/CALIPSO configured, NetLabel returns a different error
   code for illegal addresses in test 5. The patch is available from:
 http://arctic.selinuxproject.org/~rhaines/selinux-sctp/
 lksctp-tools-Add-SELinux-support-to-sctp_test-and-sc.patch

All SCTP lksctp-tools/src/func_tests run correctly in enforcing mode.

All SCTP regression tests "./sctp-tests run" run correctly in enforcing
mode. These tests are obtained from: https://github.com/sctp/sctp-tests

The selinux-testsuite patch also adds remote tests (that need some manual
configuration). These are useful for testing CIPSO/CALIPSO over a network
with a number of categories to produce large ip option fields with various
message sizes forcing fragmentation etc..

Changes since RFC Patch:
Removed the NetLabel patch (was [RFC PATCH 4/5] netlabel: Add SCTP support)
as re-engineered. However this patchset will require the NetLabel
patch at [1] to fully run the SCTP selinux-testsuite.

V1 Changes:
PATCH 1/4
Remove unused parameter from security_sctp_assoc_request().
Reformat and update LSM-sctp.rst documentation.
PATCH 2/4
Add variables and RCU locks as requested in [2] to support IP options.
PATCH 3/4
Added security_sctp_assoc_request() hook to sctp_sf_do_unexpected_init()
and sctp_sf_do_5_2_4_dupcook().
Removed security_sctp_assoc_request() hook from sctp_sf_do_5_1C_ack() as
no longer required.
PATCH 4/4
Reformat and update SELinux-sctp.rst documentation.
Remove bindx and connectx permissions.
Rework selinux_socket_connect() and selinux_netlbl_socket_connect() to
utilise helpers for code reuse.
Add spinlock to selinux_sctp_assoc_request().
Remove unused parameter from security_sctp_assoc_request().
Use address->sa_family == AF_INET in *_bind and *_connect to ensure
correct address type.
Minor cleanups.

V2 Changes:
PATCH 4/4 - Remove spin lock from selinux_sctp_assoc_request()
PATCH 4/4 - Fix selinux_sctp_sk_clone() kbuild test robot catch [3]

V3 Changes:
PATCH 2/4 - Account for IP options length in sctp.h sctp_frag_point() by
Marcelo

V4 Changes:
PATCH 1/4 - Move specific SELinux descriptions from LSM-sctp.rst and
lsm_hooks.h to SELinux-sctp.rst in PATCH 4/4
PATCH 4/4 - Rename selinux_netlbl_sctp_socket_connect() to
selinux_netlbl_socket_connect_locked() and move description comments to
selinux_sctp_bind_connect()

V5 Change: Rework selinux_netlbl_socket_connect() and
selinux_netlbl_socket_connect_locked as requested by Paul.

V6 Changes:
Rework SCTP patches 2/4 and 3/4 as there have been major SCTP updates since
kernel 4.14.

[1] https://marc.info/?l=selinux=151061619115945=2
[2] https://marc.info/?l=selinux=150962470215797=2
[3] https://marc.info/?l=selinux=151198281817779=2

Richard Haines (4):
  security: Add support for SCTP security hooks
  sctp: Add ip option support
  sctp: Add LSM hooks
  selinux: Add SCTP support

 Documentation/security/LSM-sctp.rst | 175 
 Documentation/security/SELinux-sctp.rst | 157 ++
 include/linux/lsm_hooks.h   |  36 
 include/linux/security.h|  25 +++
 include/net/sctp/sctp.h |   4 +-
 include/net/sctp/structs.h  |  12 ++
 include/uapi/linux/sctp.h   |   1 +
 net/sctp/chunk.c|  12 +-
 net/sctp/ipv6.c |  42 -
 net/sctp/output.c   |   5 +-
 net/sctp/protocol.c |  36 
 net/sctp/sm_make_chunk.c|  12 ++
 net/sctp/sm_statefuns.c |  18 ++
 net/sctp/socket.c   |  76 -
 security/security.c |  22 +++
 security/selinux/hooks.c| 280 +---
 security/selinux/include/classmap.h |   2 +-
 security/selinux/include/netlabel.h |  21 ++-
 security/selinux/include/objsec.h   |   4 +
 security/selinux/netlabel.c | 133 +--
 20 files changed, 1022 insertions(+), 51 deletions(-)
 create mode 100644 Documentation/security/LSM-sctp.rst
 create mode 100644 Documentation/security/SELinux-sctp.rst

-- 
2.14.3