*/
#include "includes.h"
+#include "librpc/gen_ndr/ndr_schannel.h"
+#include "auth/auth.h"
+
+enum schannel_position {
+ DCERPC_SCHANNEL_STATE_START = 0,
+ DCERPC_SCHANNEL_STATE_UPDATE_1
+};
+
+struct dcerpc_schannel_state {
+ enum schannel_position state;
+ struct schannel_state *schannel_state;
+ struct creds_CredentialState *creds;
+ char *account_name;
+};
+
+static NTSTATUS dcerpc_schannel_key(struct dcerpc_pipe *p,
+ const char *domain,
+ const char *username,
+ const char *password,
+ int chan_type,
+ struct creds_CredentialState *creds);
/*
wrappers for the schannel_*() functions
+
+ These will become static again, when we get dynamic registration, and
+ decrpc_schannel_security_ops come back here.
*/
-static NTSTATUS schan_unseal_packet(struct dcerpc_security *dcerpc_security,
- TALLOC_CTX *mem_ctx,
- uint8_t *data, size_t length, DATA_BLOB *sig)
+static NTSTATUS dcerpc_schannel_unseal_packet(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ uint8_t *data, size_t length,
+ const uint8_t *whole_pdu, size_t pdu_length,
+ DATA_BLOB *sig)
{
- struct schannel_state *schannel_state = dcerpc_security->private;
- return schannel_unseal_packet(schannel_state, mem_ctx, data, length, sig);
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+
+ return schannel_unseal_packet(dce_schan_state->schannel_state, mem_ctx, data, length, sig);
}
-static NTSTATUS schan_check_packet(struct dcerpc_security *dcerpc_security,
- TALLOC_CTX *mem_ctx,
- const uint8_t *data, size_t length,
- const DATA_BLOB *sig)
+static NTSTATUS dcerpc_schannel_check_packet(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const uint8_t *data, size_t length,
+ const uint8_t *whole_pdu, size_t pdu_length,
+ const DATA_BLOB *sig)
{
- struct schannel_state *schannel_state = dcerpc_security->private;
- return schannel_check_packet(schannel_state, data, length, sig);
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+
+ return schannel_check_packet(dce_schan_state->schannel_state, data, length, sig);
}
-static NTSTATUS schan_seal_packet(struct dcerpc_security *dcerpc_security,
- TALLOC_CTX *mem_ctx,
- uint8_t *data, size_t length,
- DATA_BLOB *sig)
+static NTSTATUS dcerpc_schannel_seal_packet(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ uint8_t *data, size_t length,
+ const uint8_t *whole_pdu, size_t pdu_length,
+ DATA_BLOB *sig)
{
- struct schannel_state *schannel_state = dcerpc_security->private;
- return schannel_seal_packet(schannel_state, mem_ctx, data, length, sig);
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+
+ return schannel_seal_packet(dce_schan_state->schannel_state, mem_ctx, data, length, sig);
}
-static NTSTATUS schan_sign_packet(struct dcerpc_security *dcerpc_security,
- TALLOC_CTX *mem_ctx,
- const uint8_t *data, size_t length,
- DATA_BLOB *sig)
+static NTSTATUS dcerpc_schannel_sign_packet(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ const uint8_t *data, size_t length,
+ const uint8_t *whole_pdu, size_t pdu_length,
+ DATA_BLOB *sig)
{
- struct schannel_state *schannel_state = dcerpc_security->private;
- return schannel_sign_packet(schannel_state, mem_ctx, data, length, sig);
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+
+ return schannel_sign_packet(dce_schan_state->schannel_state, mem_ctx, data, length, sig);
+}
+
+static size_t dcerpc_schannel_sig_size(struct gensec_security *gensec_security)
+{
+ return 32;
}
-static NTSTATUS schan_session_key(struct dcerpc_security *dcerpc_security,
- DATA_BLOB *session_key)
+static NTSTATUS dcerpc_schannel_session_key(struct gensec_security *gensec_security,
+ DATA_BLOB *session_key)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
-static void schan_security_end(struct dcerpc_security *dcerpc_security)
+static NTSTATUS dcerpc_schannel_update(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
+ const DATA_BLOB in, DATA_BLOB *out)
+{
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+ NTSTATUS status;
+ struct schannel_bind bind_schannel;
+ struct schannel_bind_ack bind_schannel_ack;
+ const char *account_name;
+ *out = data_blob(NULL, 0);
+
+ switch (gensec_security->gensec_role) {
+ case GENSEC_CLIENT:
+ if (dce_schan_state->state != DCERPC_SCHANNEL_STATE_START) {
+ /* we could parse the bind ack, but we don't know what it is yet */
+ return NT_STATUS_OK;
+ }
+
+ status = schannel_start(&dce_schan_state->schannel_state,
+ dce_schan_state->creds->session_key,
+ True);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Failed to start schannel client\n"));
+ return status;
+ }
+ talloc_steal(dce_schan_state, dce_schan_state->schannel_state);
+
+ bind_schannel.unknown1 = 0;
+#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 = gensec_security->user.domain;
+ bind_schannel.u.info23.account_name = gensec_security->user.name;
+ bind_schannel.u.info23.dnsdomain = str_format_nbt_domain(out_mem_ctx, fulldomainname);
+ bind_schannel.u.info23.workstation = str_format_nbt_domain(out_mem_ctx, gensec_security->user.name);
+#else
+ bind_schannel.bind_type = 3;
+ bind_schannel.u.info3.domain = gensec_security->user.domain;
+ bind_schannel.u.info3.account_name = gensec_security->user.name;
+#endif
+
+ status = ndr_push_struct_blob(out, out_mem_ctx, &bind_schannel,
+ (ndr_push_flags_fn_t)ndr_push_schannel_bind);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not create schannel bind: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+
+ dce_schan_state->state = DCERPC_SCHANNEL_STATE_UPDATE_1;
+
+ return NT_STATUS_MORE_PROCESSING_REQUIRED;
+ case GENSEC_SERVER:
+
+ if (dce_schan_state->state != DCERPC_SCHANNEL_STATE_START) {
+ /* no third leg on this protocol */
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* parse the schannel startup blob */
+ status = ndr_pull_struct_blob(&in, out_mem_ctx, &bind_schannel,
+ (ndr_pull_flags_fn_t)ndr_pull_schannel_bind);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ if (bind_schannel.bind_type == 23) {
+ account_name = bind_schannel.u.info23.account_name;
+ } else {
+ account_name = bind_schannel.u.info3.account_name;
+ }
+
+ /* pull the session key for this client */
+ status = schannel_fetch_session_key(out_mem_ctx, account_name, &dce_schan_state->creds);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not find session key for attempted schannel connection on %s: %s\n",
+ account_name, nt_errstr(status)));
+ return status;
+ }
+
+ dce_schan_state->account_name = talloc_strdup(dce_schan_state, account_name);
+
+ /* start up the schannel server code */
+ status = schannel_start(&dce_schan_state->schannel_state,
+ dce_schan_state->creds->session_key, False);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not initialise schannel state for account %s: %s\n",
+ account_name, nt_errstr(status)));
+ return status;
+ }
+ talloc_steal(dce_schan_state, dce_schan_state->schannel_state);
+
+ bind_schannel_ack.unknown1 = 1;
+ bind_schannel_ack.unknown2 = 0;
+ bind_schannel_ack.unknown3 = 0x6c0000;
+
+ status = ndr_push_struct_blob(out, out_mem_ctx, &bind_schannel_ack,
+ (ndr_push_flags_fn_t)ndr_push_schannel_bind_ack);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("Could not return schannel bind ack for account %s: %s\n",
+ account_name, nt_errstr(status)));
+ return status;
+ }
+
+ dce_schan_state->state = DCERPC_SCHANNEL_STATE_UPDATE_1;
+
+ return NT_STATUS_OK;
+ }
+ return NT_STATUS_INVALID_PARAMETER;
+}
+
+/**
+ * Return the credentials of a logged on user, including session keys
+ * etc.
+ *
+ * Only valid after a successful authentication
+ *
+ * May only be called once per authentication.
+ *
+ */
+
+NTSTATUS dcerpc_schannel_session_info(struct gensec_security *gensec_security,
+ struct auth_session_info **session_info)
+{
+ (*session_info) = talloc_p(gensec_security, struct auth_session_info);
+ NT_STATUS_HAVE_NO_MEMORY(*session_info);
+
+ ZERO_STRUCTP(*session_info);
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Return the struct creds_CredentialState.
+ *
+ * Make sure not to call this unless gensec is using schannel...
+ */
+
+NTSTATUS dcerpc_schannel_creds(struct gensec_security *gensec_security,
+ TALLOC_CTX *mem_ctx,
+ struct creds_CredentialState **creds)
+{
+ struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
+
+ *creds = talloc_reference(mem_ctx, dce_schan_state->creds);
+ if (!*creds) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ return NT_STATUS_OK;
+}
+
+
+/*
+ end crypto state
+*/
+static int dcerpc_schannel_destroy(void *ptr)
+{
+ struct dcerpc_schannel_state *dce_schan_state = ptr;
+
+ schannel_end(&dce_schan_state->schannel_state);
+
+ return 0;
+}
+
+static NTSTATUS dcerpc_schannel_start(struct gensec_security *gensec_security)
+{
+ struct dcerpc_schannel_state *dce_schan_state;
+
+ dce_schan_state = talloc_p(gensec_security, struct dcerpc_schannel_state);
+ if (!dce_schan_state) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ dce_schan_state->state = DCERPC_SCHANNEL_STATE_START;
+ gensec_security->private_data = dce_schan_state;
+
+ talloc_set_destructor(dce_schan_state, dcerpc_schannel_destroy);
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS dcerpc_schannel_server_start(struct gensec_security *gensec_security)
{
- struct schannel_state *schannel_state = dcerpc_security->private;
- schannel_end(&schannel_state);
+ NTSTATUS status;
+
+ status = dcerpc_schannel_start(gensec_security);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS dcerpc_schannel_client_start(struct gensec_security *gensec_security)
+{
+ NTSTATUS status;
+
+ status = dcerpc_schannel_start(gensec_security);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ return NT_STATUS_OK;
}
/*
get a schannel key using a netlogon challenge on a secondary pipe
*/
-NTSTATUS dcerpc_schannel_key(struct dcerpc_pipe *p,
- const char *domain,
- const char *username,
- const char *password,
- int chan_type,
- uint8_t new_session_key[8])
+static NTSTATUS dcerpc_schannel_key(struct dcerpc_pipe *p,
+ const char *domain,
+ const char *username,
+ const char *password,
+ int chan_type,
+ struct creds_CredentialState *creds)
{
NTSTATUS status;
struct dcerpc_pipe *p2;
struct netr_ServerReqChallenge r;
struct netr_ServerAuthenticate2 a;
struct netr_Credential credentials1, credentials2, credentials3;
- uint8_t mach_pwd[16];
- struct creds_CredentialState creds;
+ struct samr_Password mach_pwd;
const char *workgroup, *workstation;
- uint32_t negotiate_flags = 0;
+ uint32_t negotiate_flags;
+
+ if (p->conn->flags & DCERPC_SCHANNEL_128) {
+ negotiate_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
+ } else {
+ negotiate_flags = NETLOGON_NEG_AUTH2_FLAGS;
+ }
workstation = username;
workgroup = domain;
/*
step 1 - establish a netlogon connection, with no authentication
*/
- status = dcerpc_secondary_smb(p, &p2,
- DCERPC_NETLOGON_NAME,
- DCERPC_NETLOGON_UUID,
- DCERPC_NETLOGON_VERSION);
+ status = dcerpc_secondary_connection(p, &p2,
+ DCERPC_NETLOGON_NAME,
+ DCERPC_NETLOGON_UUID,
+ DCERPC_NETLOGON_VERSION);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
/*
step 2 - request a netlogon challenge
*/
- r.in.server_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dcerpc_server_name(p));
+ r.in.server_name = talloc_asprintf(p, "\\\\%s", dcerpc_server_name(p));
r.in.computer_name = workstation;
r.in.credentials = &credentials1;
r.out.credentials = &credentials2;
- generate_random_buffer(credentials1.data, sizeof(credentials1.data), False);
+ generate_random_buffer(credentials1.data, sizeof(credentials1.data));
- status = dcerpc_netr_ServerReqChallenge(p2, p->mem_ctx, &r);
+ status = dcerpc_netr_ServerReqChallenge(p2, p, &r);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/*
step 3 - authenticate on the netlogon pipe
*/
- E_md4hash(password, mach_pwd);
- creds_client_init(&creds, &credentials1, &credentials2, mach_pwd, &credentials3);
+ E_md4hash(password, mach_pwd.hash);
+ creds_client_init(creds, &credentials1, &credentials2, &mach_pwd, &credentials3,
+ negotiate_flags);
a.in.server_name = r.in.server_name;
- a.in.username = talloc_asprintf(p->mem_ctx, "%s$", workstation);
+ a.in.account_name = talloc_asprintf(p, "%s$", workstation);
a.in.secure_channel_type = chan_type;
a.in.computer_name = workstation;
a.in.negotiate_flags = &negotiate_flags;
a.in.credentials = &credentials3;
a.out.credentials = &credentials3;
- status = dcerpc_netr_ServerAuthenticate2(p2, p->mem_ctx, &a);
+ status = dcerpc_netr_ServerAuthenticate2(p2, p, &a);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- if (!creds_client_check(&creds, a.out.credentials)) {
+ if (!creds_client_check(creds, a.out.credentials)) {
return NT_STATUS_UNSUCCESSFUL;
}
*/
dcerpc_pipe_close(p2);
- memcpy(new_session_key, creds.session_key, 8);
-
return NT_STATUS_OK;
}
-
/*
- do a schannel style bind on a dcerpc pipe with the given schannel
- key. The username is usually of the form HOSTNAME$ and the password
- is the domain trust password
+ do a schannel style bind on a dcerpc pipe. The username is usually
+ of the form HOSTNAME$ and the password is the domain trust password
*/
-NTSTATUS dcerpc_bind_auth_schannel_key(struct dcerpc_pipe *p,
- const char *uuid, uint_t version,
- const char *domain,
- const char *username,
- const uint8_t session_key[8])
+NTSTATUS dcerpc_bind_auth_schannel_withkey(struct dcerpc_pipe *p,
+ const char *uuid, uint_t version,
+ const char *domain,
+ const char *username,
+ const char *password,
+ struct creds_CredentialState *creds)
{
NTSTATUS status;
- uint8_t full_session_key[16];
- struct schannel_state *schannel_state;
- const char *workgroup, *workstation;
-
- memcpy(full_session_key, session_key, 8);
- memset(full_session_key+8, 0, 8);
-
- workstation = username;
- workgroup = domain;
+ struct dcerpc_schannel_state *dce_schan_state;
- /*
- perform a bind with security type schannel
- */
- p->auth_info = talloc(p->mem_ctx, sizeof(*p->auth_info));
- if (!p->auth_info) {
- status = NT_STATUS_NO_MEMORY;
- goto done;
+ status = gensec_client_start(p, &p->conn->security_state.generic_state);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
}
- p->auth_info->auth_type = DCERPC_AUTH_TYPE_SCHANNEL;
-
- if (p->flags & DCERPC_SEAL) {
- p->auth_info->auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
- } else {
- /* note that DCERPC_AUTH_LEVEL_NONE does not make any
- sense, and would be rejected by the server */
- p->auth_info->auth_level = DCERPC_AUTH_LEVEL_INTEGRITY;
+ status = gensec_set_username(p->conn->security_state.generic_state, username);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Failed to set schannel username to %s: %s\n", username, nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
+ return status;
}
- p->auth_info->auth_pad_length = 0;
- p->auth_info->auth_reserved = 0;
- p->auth_info->auth_context_id = random();
- p->security_state = NULL;
-
- p->auth_info->credentials = data_blob_talloc(p->mem_ctx,
- NULL,
- 8 +
- strlen(workgroup)+1 +
- strlen(workstation)+1);
- if (!p->auth_info->credentials.data) {
- return NT_STATUS_NO_MEMORY;
+
+ status = gensec_set_domain(p->conn->security_state.generic_state, domain);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Failed to set schannel domain to %s: %s\n", domain, nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
+ return status;
}
+
+ status = gensec_start_mech_by_authtype(p->conn->security_state.generic_state,
+ DCERPC_AUTH_TYPE_SCHANNEL,
+ dcerpc_auth_level(p->conn));
- /* oh, this is ugly! */
- SIVAL(p->auth_info->credentials.data, 0, 0);
- SIVAL(p->auth_info->credentials.data, 4, 3);
- memcpy(p->auth_info->credentials.data+8, workgroup, strlen(workgroup)+1);
- memcpy(p->auth_info->credentials.data+8+strlen(workgroup)+1,
- workstation, strlen(workstation)+1);
-
- /* send the authenticated bind request */
- status = dcerpc_bind_byuuid(p, p->mem_ctx, uuid, version);
if (!NT_STATUS_IS_OK(status)) {
- goto done;
+ DEBUG(1, ("Failed to start SCHANNEL GENSEC backend: %s\n", nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
+ return status;
}
- p->security_state = talloc_p(p->mem_ctx, struct dcerpc_security);
- if (!p->security_state) {
- status = NT_STATUS_NO_MEMORY;
- goto done;
- }
+ dce_schan_state = p->conn->security_state.generic_state->private_data;
+ dce_schan_state->creds = talloc_reference(dce_schan_state, creds);
- schannel_state = talloc_p(p->mem_ctx, struct schannel_state);
- if (!schannel_state) {
- status = NT_STATUS_NO_MEMORY;
- goto done;
- }
+ status = dcerpc_bind_auth(p, DCERPC_AUTH_TYPE_SCHANNEL, dcerpc_auth_level(p->conn),
+ uuid, version);
- status = schannel_start(&schannel_state, full_session_key, True);
if (!NT_STATUS_IS_OK(status)) {
- goto done;
+ DEBUG(1, ("Failed to bind to pipe with SCHANNEL: %s\n", nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
+ return status;
}
- dump_data_pw("session key:\n", schannel_state->session_key, 16);
-
- p->security_state->private = schannel_state;
- p->security_state->unseal_packet = schan_unseal_packet;
- p->security_state->check_packet = schan_check_packet;
- p->security_state->seal_packet = schan_seal_packet;
- p->security_state->sign_packet = schan_sign_packet;
- p->security_state->session_key = schan_session_key;
- p->security_state->security_end = schan_security_end;
-
-done:
- return status;
+ return NT_STATUS_OK;
}
-
-/*
- do a schannel style bind on a dcerpc pipe. The username is usually
- of the form HOSTNAME$ and the password is the domain trust password
-*/
NTSTATUS dcerpc_bind_auth_schannel(struct dcerpc_pipe *p,
const char *uuid, uint_t version,
const char *domain,
const char *password)
{
NTSTATUS status;
- uint8_t session_key[8];
+ int chan_type = 0;
+ struct creds_CredentialState *creds;
+ creds = talloc_p(p, struct creds_CredentialState);
+ if (!creds) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (p->conn->flags & DCERPC_SCHANNEL_BDC) {
+ chan_type = SEC_CHAN_BDC;
+ } else if (p->conn->flags & DCERPC_SCHANNEL_WORKSTATION) {
+ chan_type = SEC_CHAN_WKSTA;
+ } else if (p->conn->flags & DCERPC_SCHANNEL_DOMAIN) {
+ chan_type = SEC_CHAN_DOMAIN;
+ }
+
+ status = dcerpc_schannel_key(p, domain,
+ username,
+ password,
+ chan_type,
+ creds);
- status = dcerpc_schannel_key(p, domain, username, password,
- lp_server_role() == ROLE_DOMAIN_BDC? SEC_CHAN_BDC:SEC_CHAN_WKSTA,
- session_key);
if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Failed to fetch schannel session key: %s\n",
+ nt_errstr(status)));
return status;
}
- status = dcerpc_bind_auth_schannel_key(p, uuid, version, domain, username, session_key);
+ return dcerpc_bind_auth_schannel_withkey(p, uuid, version, domain,
+ username, password,
+ creds);
+}
- return status;
+static BOOL dcerpc_schannel_have_feature(struct gensec_security *gensec_security,
+ uint32 feature)
+{
+ if (feature & (GENSEC_FEATURE_SESSION_KEY |
+ GENSEC_FEATURE_SIGN |
+ GENSEC_FEATURE_SEAL)) {
+ return True;
+ }
+ return False;
}
+
+static const struct gensec_security_ops gensec_dcerpc_schannel_security_ops = {
+ .name = "dcerpc_schannel",
+ .auth_type = DCERPC_AUTH_TYPE_SCHANNEL,
+ .client_start = dcerpc_schannel_client_start,
+ .server_start = dcerpc_schannel_server_start,
+ .update = dcerpc_schannel_update,
+ .seal_packet = dcerpc_schannel_seal_packet,
+ .sign_packet = dcerpc_schannel_sign_packet,
+ .check_packet = dcerpc_schannel_check_packet,
+ .unseal_packet = dcerpc_schannel_unseal_packet,
+ .session_key = dcerpc_schannel_session_key,
+ .session_info = dcerpc_schannel_session_info,
+ .sig_size = dcerpc_schannel_sig_size,
+ .have_feature = dcerpc_schannel_have_feature,
+ .enabled = True
+};
+
+NTSTATUS gensec_dcerpc_schannel_init(void)
+{
+ NTSTATUS ret;
+ ret = gensec_register(&gensec_dcerpc_schannel_security_ops);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0,("Failed to register '%s' gensec backend!\n",
+ gensec_dcerpc_schannel_security_ops.name));
+ return ret;
+ }
+
+ return ret;
+}