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Limit the max_recursion on self recursive definitions in the idl to
20,000. This value is hopefully large eneough to not impact normal
operation, but small eneough to prevent stack over flow issues.
Credit to OSS-Fuzz
REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19820
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14254
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Feb 27 02:29:21 UTC 2020 on sn-devel-184
At last, the nail in the coffin. :)
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jan 13 21:09:01 UTC 2020 on sn-devel-184
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Dec 18 00:05:13 UTC 2019 on sn-devel-184
With the last commit we don't store the share mode entry count
anymore. With this commit we go one step further and avoid storing
it. If there's valid record in locking.tdb, there is a corresponding
record in share_entries.tdb, so there's no point storing that once
more explicitly.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This implements two core changes:
* use NTTIME instead of struct timespec at the database layer
* use struct timespec { .tv_nsec = SAMBA_UTIME_OMIT } as special sentinel
value in smbd when processing timestamps
Using NTTIME at the database layer is only done to avoid storing the special
struct timespec sentinel values on disk. Instead, with NTTIME the sentinel value
for an "unset" timestamp is just 0 on-disk.
The NTTIME value of 0 gets translated by nt_time_to_full_timespec() to the
struct timespec sentinel value { .tv_nsec = SAMBA_UTIME_OMIT }.
The function is_omit_timespec() can be used to check this.
Beside nt_time_to_full_timespec(), there are various other new time conversion
functions with *full* in their name that can be used to safely convert between
different types with the changed sentinel value.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=7771
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Isaac Boukris <iboukris@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This is not a real protocol and all the functions are set to nopull,nopush
but do not supply replacement functions.
This is the best was I could find to skip compiling the table as otherwise
it would point to undefined functions.
This does not happen until we generate the ndr_table for idl files without
a UUID, but we will shortly do that.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14191
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Pair-progammed-with: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This not-protocol only uses the print functions, but this means some other functions
are now unused, and as this is a special case it is better to just allow warnings
here.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14191
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
These are not wire protocols, there are no structures to parse.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14191
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Pair-progammed-with: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Fixes:
source3/librpc/crypto/gse_krb5.c:63:3: warning: Value stored to 'ret' is never read <--[clang]
ret = smb_krb5_kt_free_entry(krbctx, &kt_entry);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Fixes: Value stored to 'gss_maj' is never read
source3/librpc/crypto/gse.c:562:3: warning: Value stored to 'gss_maj' is never read <--[clang]
gss_maj = gss_release_buffer(&gss_min, &out_data);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
source3/librpc/crypto/gse.c:687:3: warning: Value stored to 'gss_maj' is never read <--[clang]
gss_maj = gss_release_buffer(&gss_min, &out_data);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
source3/librpc/crypto/gse.c:739:3: warning: Value stored to 'gss_maj' is never read <--[clang]
gss_maj = gss_release_buffer(&gss_min, &msg_min);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
source3/librpc/crypto/gse.c:742:3: warning: Value stored to 'gss_maj' is never read <--[clang]
gss_maj = gss_release_buffer(&gss_min, &msg_maj);
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 warnings generated.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
This will contain a summary of the "most restrictive" share mode and
lease, i.e. intersection of all share_access entries and the union of
all access_mask and leases in the share mode array. This way
open_mode_check in the non-conflicting case will only have to look at
the summary and not walk the share mode array.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This moves share_modes[] from "struct share_mode_data" into a separate
share_entries.tdb with a sorted array of fixed-length (132 byte)
"struct share_mode_entry" entries.
I know it's one huge commit, but I did not see a way to keep both data
structures and associated code working together without a lot of code
duplication after having centralized all the code accessing the
share_modes[] array into a few routines.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Believe it or not, but without this change "num_files" was first.
Thanks Metze for this (to me at least) really, really surprising
insight!
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
They are put at the beginning for easy parsing without reading the
full struct. First step to remove the number of read oplocks/leases
from brlock.tdb, where it does not belong.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
file_id plus share_file_id remotely specify the fsp. This avoids the
explicit loop in the receiver.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat May 18 20:18:55 UTC 2019 on sn-devel-184
The previous scheme was overloaded, a idl definition is easier to
print, and it clarifies what data is actually needed
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu May 16 23:48:18 UTC 2019 on sn-devel-184
The original names will be used with a new structure to cache mac and
cipher handles for gnutls later.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This also removes the temporary functions introduced during the patchset.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Sun Apr 14 05:18:14 UTC 2019 on sn-devel-144
Instead of indexing into the leases[] array, put the lease_db reference into
the share_mode_entry. For simplicity, put in the client guid as well. We
*might* be able to retrieve that from somewhere else, but as other smbd
processes have to look at the lease values, put in the full leases_db index
data.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
This is the data stored in share_mode_lease inside the leases[] array in
locking.tdb. This and all the following patches move all leases array to
looking at the leases.tdb.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Replace kerberos context initialization from
raw krb5_init_context() to smb_krb5_init_context_basic()
which is adding common tracing as well.
Signed-off-by: Swen Schillig <swen@linux.ibm.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
If the call to krb5_cc_resolve() fails and processing is aborted,
the krb5 conext must be free'd before return.
Signed-off-by: Swen Schillig <swen@linux.ibm.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
smbstatus was the only user, and this could be solved by adapting
share_entry_forall.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Jul 27 01:42:31 CEST 2018 on sn-devel-144
That makes it clearer that no tevent_context wrapper is used here
and the related code should really run without any (active) impersonation
as before.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Mar 16 07:48:37 CET 2018 on sn-devel-144
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Feb 13 05:01:38 CET 2018 on sn-devel-144
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13247
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Jan 31 00:38:09 CET 2018 on sn-devel-144
When the client's supplied csn overflows and hits a pending, long-running
request's csn, we panic. Fix this by counting the overflows in
smbXsrv_open_global0->channel_generation
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13215
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This avoids a lot of cpu cycles, which were wasted for each single smb
connection, even if the client didn't use kerberos.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12973
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Aug 18 10:04:57 CEST 2017 on sn-devel-144
This blob will be store in secrets.tdb. It makes it possible to store much
more useful details about the workstation trust.
The key feature that that triggered this change is the ability
to store details for the next password change before doing
the remote change. This will allow us to recover from failures.
While being there I also thought about possible new features,
which we may implement in the near future.
We also store the raw UTF16 like cleartext buffer as well as derived
keys like the NTHASH (arcfour-hmac-md5 key) and other kerberos keys.
This will allow us to avoid recalculating the keys for an in memory
keytab in future.
I also added pointer to an optional lsa_ForestTrustInformation structure,
which might be useful to implement multi-tenancy in future.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12782
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
