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s4-schannel: use NL_AUTH_MESSAGE for schannel.

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Guenther
This commit is contained in:
Günther Deschner 2009-09-13 01:35:06 +02:00
parent 760666c107
commit 8b0f54027c
1 changed files with 35 additions and 23 deletions
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58
source4/auth/gensec/schannel.c
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@ -48,12 +48,14 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
struct schannel_state *state = (struct schannel_state *)gensec_security->private_data;
NTSTATUS status;
enum ndr_err_code ndr_err;
struct schannel_bind bind_schannel;
struct schannel_bind_ack bind_schannel_ack;
struct NL_AUTH_MESSAGE bind_schannel;
struct NL_AUTH_MESSAGE bind_schannel_ack;
struct netlogon_creds_CredentialState *creds;
struct ldb_context *schannel_ldb;
const char *workstation;
const char *domain;
uint32_t required_flags;
*out = data_blob(NULL, 0);
switch (gensec_security->gensec_role) {
@ -65,26 +67,31 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
state->creds = talloc_reference(state, cli_credentials_get_netlogon_creds(gensec_security->credentials));
bind_schannel.unknown1 = 0;
bind_schannel.MessageType = NL_NEGOTIATE_REQUEST;
#if 0
/* to support this we'd need to have access to the full domain name */
bind_schannel.bind_type = 23;
bind_schannel.u.info23.domain = cli_credentials_get_domain(gensec_security->credentials);
bind_schannel.u.info23.workstation = cli_credentials_get_workstation(gensec_security->credentials);
bind_schannel.u.info23.dnsdomain = cli_credentials_get_realm(gensec_security->credentials);
/* 0x17, 23 */
bind_schannel.Flags = NL_FLAG_OEM_NETBIOS_DOMAIN_NAME |
NL_FLAG_OEM_NETBIOS_COMPUTER_NAME |
NL_FLAG_UTF8_DNS_DOMAIN_NAME |
NL_FLAG_UTF8_NETBIOS_COMPUTER_NAME;
bind_schannel.oem_netbios_domain.a = cli_credentials_get_domain(gensec_security->credentials);
bind_schannel.oem_netbios_computer.a = cli_credentials_get_workstation(gensec_security->credentials);
bind_schannel.utf8_dns_domain = cli_credentials_get_realm(gensec_security->credentials);
/* w2k3 refuses us if we use the full DNS workstation?
why? perhaps because we don't fill in the dNSHostName
attribute in the machine account? */
bind_schannel.u.info23.dnsworkstation = cli_credentials_get_workstation(gensec_security->credentials);
bind_schannel.utf8_netbios_computer = cli_credentials_get_workstation(gensec_security->credentials);
#else
bind_schannel.bind_type = 3;
bind_schannel.u.info3.domain = cli_credentials_get_domain(gensec_security->credentials);
bind_schannel.u.info3.workstation = cli_credentials_get_workstation(gensec_security->credentials);
bind_schannel.Flags = NL_FLAG_OEM_NETBIOS_DOMAIN_NAME |
NL_FLAG_OEM_NETBIOS_COMPUTER_NAME;
bind_schannel.oem_netbios_domain.a = cli_credentials_get_domain(gensec_security->credentials);
bind_schannel.oem_netbios_computer.a = cli_credentials_get_workstation(gensec_security->credentials);
#endif
ndr_err = ndr_push_struct_blob(out, out_mem_ctx,
gensec_security->settings->iconv_convenience, &bind_schannel,
(ndr_push_flags_fn_t)ndr_push_schannel_bind);
(ndr_push_flags_fn_t)ndr_push_NL_AUTH_MESSAGE);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(3, ("Could not create schannel bind: %s\n",
@ -97,6 +104,9 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
return NT_STATUS_MORE_PROCESSING_REQUIRED;
case GENSEC_SERVER:
required_flags = NL_FLAG_OEM_NETBIOS_COMPUTER_NAME |
NL_FLAG_OEM_NETBIOS_DOMAIN_NAME;
if (state->state != SCHANNEL_STATE_START) {
/* no third leg on this protocol */
return NT_STATUS_INVALID_PARAMETER;
@ -106,7 +116,7 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
ndr_err = ndr_pull_struct_blob(&in, out_mem_ctx,
gensec_security->settings->iconv_convenience,
&bind_schannel,
(ndr_pull_flags_fn_t)ndr_pull_schannel_bind);
(ndr_pull_flags_fn_t)ndr_pull_NL_AUTH_MESSAGE);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(3, ("Could not parse incoming schannel bind: %s\n",
@ -114,14 +124,13 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
return status;
}
if (bind_schannel.bind_type == 23) {
workstation = bind_schannel.u.info23.workstation;
domain = bind_schannel.u.info23.domain;
} else {
workstation = bind_schannel.u.info3.workstation;
domain = bind_schannel.u.info3.domain;
if (!(required_flags == (bind_schannel.Flags & required_flags))) {
return NT_STATUS_INVALID_PARAMETER;
}
workstation = bind_schannel.oem_netbios_computer.a;
domain = bind_schannel.oem_netbios_domain.a;
if (strcasecmp_m(domain, lp_workgroup(gensec_security->settings->lp_ctx)) != 0) {
DEBUG(3, ("Request for schannel to incorrect domain: %s != our domain %s\n",
domain, lp_workgroup(gensec_security->settings->lp_ctx)));
@ -149,13 +158,16 @@ static NTSTATUS schannel_update(struct gensec_security *gensec_security, TALLOC_
state->creds = talloc_reference(state, creds);
bind_schannel_ack.unknown1 = 1;
bind_schannel_ack.unknown2 = 0;
bind_schannel_ack.unknown3 = 0x6c0000;
bind_schannel_ack.MessageType = NL_NEGOTIATE_RESPONSE;
bind_schannel_ack.Flags = 0;
bind_schannel_ack.Buffer.dummy = 0x6c0000; /* actually I think
* this does not have
* any meaning here
* - gd */
ndr_err = ndr_push_struct_blob(out, out_mem_ctx,
gensec_security->settings->iconv_convenience, &bind_schannel_ack,
(ndr_push_flags_fn_t)ndr_push_schannel_bind_ack);
(ndr_push_flags_fn_t)ndr_push_NL_AUTH_MESSAGE);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(3, ("Could not return schannel bind ack for client %s: %s\n",