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mirror of https://github.com/samba-team/samba.git synced 2025-01-25 06:04:04 +03:00

1183 Commits

Author SHA1 Message Date
Joseph Sutton
39340f6518 s4:kdc: Check result of dom_sid_parse()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-14 21:35:29 +00:00
Joseph Sutton
716bf29d2d s4:kdc: Remove unused flags
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-14 21:35:29 +00:00
Joseph Sutton
ffbd95e6f1 s4:kdc: Use smb_krb5_data_from_blob()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-14 21:35:29 +00:00
Joseph Sutton
97906d275d s4:kdc: Remove duplicate function signature
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-14 21:35:29 +00:00
Joseph Sutton
c92fac94cd s4:kdc: Prefer explicit initialization to ZERO_STRUCT()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-14 21:35:29 +00:00
Joseph Sutton
0834b30921 s4:kdc: Fix code spelling
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-11 02:42:41 +00:00
Joseph Sutton
4b03aabe45 s4:kdc: Use smb_krb5_make_data()
smb_krb5_make_data() sets the magic field, which we were previously
ignoring. We should also not set krb5_data::length if krb5_data::data is
NULL.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-21 23:37:29 +00:00
Joseph Sutton
6d2c7c45ca s4:kdc: Use ‘krb5_error_code’ for return types
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-21 23:37:29 +00:00
Joseph Sutton
9166d01b19 s4:kdc: Set SAMBA_KDC_FLAG_PROTOCOL_TRANSITION flag for MIT Kerberos
This flag was set in commit 461dc44e740aacad41bb0df0552560d1eb3c6ea8,
but only in mit_samba_reget_pac(); it was not set in the newer function,
mit_samba_update_pac(), used with MIT Kerberos 1.20 and above.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-21 23:37:29 +00:00
Joseph Sutton
bbfa98ec05 s4:kdc: Remove support code for older versions of MIT Kerberos
The oldest version we now support is 1.21. For every supported version
we can be certain that KRB5_KDB_API_VERSION >= 10 and
KRB5_KDB_DAL_MAJOR_VERSION >= 9.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-21 23:37:29 +00:00
Joseph Sutton
6b580f7368 s4:kdc: Do not panic if authsam_logon_success_accounting() fails
In hdb_samba4_audit(), ERR_GENERIC signals an unexpected situation — if
we encounter that error code while running under selftest, we’ll panic.
In response to an expected event such as the failure of
authsam_logon_success_accounting(), it’s more appropriate to continue to
run.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-21 23:37:29 +00:00
Joseph Sutton
c01c206d76 s4:kdc: Add get_claims_set_for_principal()
Add a new function, get_claims_set_for_principal(), that returns the
claims as a CLAIMS_SET structure rather than as a blob. To accommodate
this, move the call to encode_claims_set() out of get_all_claims() and
into get_claims_blob_for_principal().

Being able to get the unencoded claims will save us from having to
decode claims that we just needlessly encoded.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Aug 14 05:51:45 UTC 2023 on atb-devel-224
2023-08-14 05:51:45 +00:00
Joseph Sutton
21e0c25895 s4:kdc: Rename ‘claims_blob’ parameter to ‘claims_blob_out’
Just to make perfectly clear that it is an out parameter.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:35 +00:00
Joseph Sutton
504a36f320 s4:kdc: Rename get_claims_for_principal() to get_claims_blob_for_principal()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:35 +00:00
Joseph Sutton
e6b78ef7f7 s4:kdc: Ensure that we don’t dereference a NULL pointer
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:35 +00:00
Joseph Sutton
58371c33e9 s4:kdc: Properly allocate claims set on a talloc context
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:35 +00:00
Joseph Sutton
c6cd6b25ff s4:kdc: Remove ldb_context parameter as being no longer needed
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
78fc6fbb61 s4:kdc: Have encode_claims_set return NTSTATUS
This change will simplify things later. Probably.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
c1061ae8a7 s4:kdc: Free error message returned by krb5_get_error_message()
Also check whether the message is NULL. Passing NULL to vasprintf() is
undefined behaviour.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
9d485b262a s4:kdc: Use common out path in mit_samba_kpasswd_change_password()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
ab098c2431 s4:kdc: Inline samba_get_claims_blob()
Wrapping a function this simple doesn’t gain us very much.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
63f798442c s4:kdc: Don’t enforce a server authentication policy for the krbtgt
As the server authentication policy will be non-NULL only for entries
looked up as servers, the krbtgt shouldn’t have an authentication policy
anyway. But we might as well be explicit.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
914f170099 s4:kdc: Switch to using samdb_result_dom_sid_buf()
This function doesn’t require a heap allocation.

We also check the result of the function, which we weren’t doing before.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
7d6ebfe4e3 s4:kdc: Return krb5_error_code
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
fc99b90346 s4:kdc: Make some functions static
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
e67c022618 s4:kdc: Return (possibly) more appropriate error codes
This change ultimately won’t make much difference to responses, as
unrecognized codes are mapped to ERR_GENERIC in any case. But it might
provide some help for debugging.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
dadfc06ce1 s4:kdc: Use type bool for ‘is_tgs’
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
6e5e2f0b2c s4:kdc: Erase key data
If we’re going to zero the keys before freeing them, we might as well do
it properly.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
7dd13e8d8e s4:kdc: Ensure the value of h->len is accurate
If we exited this function early due to an error, h->len would contain
the number of elements that *ought* to be in h->val, but not all of
those elements must have been initialized. Subsequently trying to free
this partially-uninitialized structure with free_Keys() could have bad
results.

Avoid this by ensuring that h->len accurately reports the actual number
of initialized elements.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
7e496d774c s4:kdc: Consistently zero HDB structures
To these conversion functions we sometimes pass malloc-allocated HDB
structures, which we free afterwards if conversion fails. If parts of
these structures are still uninitialized when we try to free them, all
sorts of fun things can result.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
75a1beeea8 s4:kdc: Fix leaks of sdb_entry’s members
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
e546587280 s4:kdc: Fail PAC checksum verification if the krbtgt entry has no keys
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
406af84ba2 s4:kdc: Correctly report length of KDC packet
If the data was received over TCP, it would have had four bytes
subtracted from its length already, in kdc_tcp_call_loop().

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
bb78ad7bd9 s4:kdc: Use portable format specifier
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
0f127875c8 s4:kdc: Correct error message
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
84929c6855 s4:kdc: Return an error code if sdb_entry_to_hdb_entry() fails
This condition was written backwards — if samba_kdc_fetch() returned
zero, we would ignore any error code returned by
sdb_entry_to_hdb_entry().

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
93c0f35521 s4:kdc: Fix code spelling
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
a5129c0763 s4:kdc: Fix leaks
Use a temporary context to allocate these variables. Each variable that
needs to be transferred to the caller is stolen onto an appropriate
talloc context just prior to the function’s returning.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
e9c275b4e0 s4:kdc: Move calls to talloc_steal() out of the ‘out’ paths
This simplifies the ‘out’ paths.

Every code path that reaches ‘out’ via a goto ensures that ‘ret’ is set
to a nonzero value.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
bf78c60368 s4:kdc: Remove unnecessary talloc context
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
902ed79b22 s4:kdc: Call krb5_free_principal() directly after to-be-freed principal is used
This simplifies the ‘out’ path.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
79738178ec s4:kdc: Free samba_kdc_seq context on failure to allocate memory
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
bc1103e93b s4:kdc: Check return value from ldb_dn_get_linearized()
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
09e13845ae s4:kdc: Fix leak of sdb_entry
We should take the common ‘out’ path to ensure that we call
sdb_entry_free() on the entry.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
26e2e891d0 s4:kdc: Ensure we don’t increase the value of entry->etypes->len
The value of entry->etypes->len ought to be equal to that of
entry->keys.len, and so should be nonzero. But it’s safer not to rely on
that assumption.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
7cfddcbf3f s4:kdc: Check result of samdb_result_dom_sid()
We must not pass a NULL pointer into dom_sid_split_rid().

While we’re at it, switch to using samdb_result_dom_sid_buf(), which
doesn’t require a heap allocation.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
f34645b8f8 s4:kdc: Initialize entry->modified_by
If smb_krb5_make_principal() fails without setting the principal,
sdb_entry_free() will try to free whatever memory the uninitialized
member points to.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
e035cfabc7 s4:kdc: Don’t log secret keys
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
0cf658cd10 s4:kdc: Don’t issue forwardable or proxiable tickets to Protected Users
If an authentication policy enforces a maximum TGT lifetime for a
Protected User, that limit should stand in place of the four-hour limit
usually applied to Protected Users; we should nevertheless continue to
ensure that forwardable or proxiable tickets are not issued to such
users.

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00
Joseph Sutton
4c320f756d s4:kdc: Refer to correct function in error messages
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-08-14 04:57:34 +00:00