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r12436: Fix Samba4 as a server to Win2000 for the domain join.

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We still have Win2000 issues, but now we correctly handle the case
where NTLMSSP is chosen as an authentication mech, but the OID list
still contains Kerberos as a later option.

Andrew Bartlett
This commit is contained in:
Andrew Bartlett 2005-12-22 20:34:00 +00:00 committed by Gerald (Jerry) Carter
parent 0ed07057d3
commit dc2b2c33f8
1 changed files with 75 additions and 47 deletions
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122
source/auth/gensec/spnego.c
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@ -35,7 +35,6 @@ enum spnego_state_position {
};
struct spnego_state {
uint_t ref_count;
enum spnego_message_type expected_packet;
enum spnego_state_position state_position;
struct gensec_security *sub_sec_security;
@ -319,46 +318,85 @@ static NTSTATUS gensec_spnego_parse_negTokenInit(struct gensec_security *gensec_
out_mem_ctx,
mechType,
GENSEC_OID_SPNEGO);
for (i=0; all_sec && all_sec[i].op; i++) {
nt_status = gensec_subcontext_start(spnego_state,
gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* select the sub context */
nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
all_sec[i].op);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
continue;
}
if (spnego_state->state_position == SPNEGO_SERVER_START) {
for (i=0; all_sec && all_sec[i].op; i++) {
/* optomisitic token */
if (strcmp(all_sec[i].oid, mechType[0]) == 0) {
nt_status = gensec_subcontext_start(spnego_state,
gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* select the sub context */
nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
all_sec[i].op);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
break;
}
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
unwrapped_in,
unwrapped_out);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
/* Pretend we never started it (lets the first run find some incompatible demand) */
DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse: %s\n",
spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
break;
}
spnego_state->neg_oid = all_sec[i].oid;
}
}
}
if (!spnego_state->sub_sec_security) {
for (i=0; all_sec && all_sec[i].op; i++) {
nt_status = gensec_subcontext_start(spnego_state,
gensec_security,
&spnego_state->sub_sec_security);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* select the sub context */
nt_status = gensec_start_mech_by_ops(spnego_state->sub_sec_security,
all_sec[i].op);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
continue;
}
spnego_state->neg_oid = all_sec[i].oid;
if ((i == 0) && (strcmp(all_sec[0].oid, mechType[0]) == 0)) {
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
unwrapped_in,
unwrapped_out);
} else {
/* only get the helping start blob for the first OID */
nt_status = gensec_update(spnego_state->sub_sec_security,
out_mem_ctx,
null_data_blob,
unwrapped_out);
/* it is likely that a NULL input token will
* not be liked by most server mechs, but this
* does the right thing in the CIFS client.
* just push us along the merry-go-round
* again, and hope for better luck next
* time */
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
*unwrapped_out = data_blob(NULL, 0);
nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
}
break;
}
}
if (spnego_state->sub_sec_security) {
/* it is likely that a NULL input token will
* not be liked by most server mechs, but this
* does the right thing in the CIFS client.
* just push us along the merry-go-round
* again, and hope for better luck next
* time */
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
*unwrapped_out = data_blob(NULL, 0);
nt_status = NT_STATUS_MORE_PROCESSING_REQUIRED;
}
if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)
&& !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)
&& !NT_STATUS_IS_OK(nt_status)) {
@ -366,25 +404,15 @@ static NTSTATUS gensec_spnego_parse_negTokenInit(struct gensec_security *gensec_
spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
/* We started the mech correctly, and the
* input from the other side was valid.
* Return the error (say bad password, invalid
* ticket) */
return nt_status;
} else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_INVALID_PARAMETER)) {
/* Pretend we never started it (lets the first run find some incompatible demand) */
DEBUG(1, ("SPNEGO(%s) NEG_TOKEN_INIT failed to parse: %s\n",
spnego_state->sub_sec_security->ops->name, nt_errstr(nt_status)));
talloc_free(spnego_state->sub_sec_security);
spnego_state->sub_sec_security = NULL;
continue;
}
spnego_state->neg_oid = all_sec[i].oid;
return nt_status; /* OK, INVALID_PARAMETER ore MORE PROCESSING */
}