#include "includes.h"
#include "librpc/gen_ndr/ndr_schannel.h"
+#include "auth/auth.h"
enum schannel_position {
DCERPC_SCHANNEL_STATE_START = 0,
struct dcerpc_schannel_state {
enum schannel_position state;
struct schannel_state *schannel_state;
- struct creds_CredentialState creds;
- char *account_name;
+ struct creds_CredentialState *creds;
};
-static 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[16]);
-
/*
wrappers for the schannel_*() functions
NTSTATUS status;
struct schannel_bind bind_schannel;
struct schannel_bind_ack bind_schannel_ack;
- const char *account_name;
+ const char *workstation;
+ const char *domain;
*out = data_blob(NULL, 0);
switch (gensec_security->gensec_role) {
return NT_STATUS_OK;
}
+ status = schannel_start(dce_schan_state,
+ &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.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);
+ bind_schannel.u.info23.workstation = str_format_nbt_domain(out_mem_ctx, gensec_get_workstation(gensec_security));
#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;
+ bind_schannel.u.info3.workstation = gensec_get_workstation(gensec_security);
#endif
status = ndr_push_struct_blob(out, out_mem_ctx, &bind_schannel,
}
if (bind_schannel.bind_type == 23) {
- account_name = bind_schannel.u.info23.account_name;
+ workstation = bind_schannel.u.info23.workstation;
+ domain = bind_schannel.u.info23.domain;
} else {
- account_name = bind_schannel.u.info3.account_name;
+ workstation = bind_schannel.u.info3.workstation;
+ domain = bind_schannel.u.info3.domain;
}
/* pull the session key for this client */
- status = schannel_fetch_session_key(out_mem_ctx, account_name, &dce_schan_state->creds);
+ status = schannel_fetch_session_key(out_mem_ctx, workstation,
+ domain, &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)));
+ DEBUG(3, ("Could not find session key for attempted schannel connection from %s: %s\n",
+ workstation, 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);
+ status = schannel_start(dce_schan_state,
+ &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)));
+ DEBUG(3, ("Could not initialise schannel state from client %s: %s\n",
+ workstation, nt_errstr(status)));
return status;
}
talloc_steal(dce_schan_state, dce_schan_state->schannel_state);
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)));
+ DEBUG(3, ("Could not return schannel bind ack for client %s: %s\n",
+ workstation, nt_errstr(status)));
return status;
}
NTSTATUS dcerpc_schannel_session_info(struct gensec_security *gensec_security,
struct auth_session_info **session_info)
-{
- struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
-
- (*session_info) = talloc_p(gensec_security, struct auth_session_info);
- if (*session_info == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
+{
+ (*session_info) = talloc(gensec_security, struct auth_session_info);
+ NT_STATUS_HAVE_NO_MEMORY(*session_info);
ZERO_STRUCTP(*session_info);
- (*session_info)->refcount = 1;
-
- (*session_info)->workstation = talloc_strdup(*session_info, dce_schan_state->account_name);
- if ((*session_info)->workstation == NULL) {
- talloc_free(*session_info);
- return NT_STATUS_NO_MEMORY;
- }
+
return NT_STATUS_OK;
}
-
/**
* Return the struct creds_CredentialState.
{
struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
- *creds = talloc_p(mem_ctx, struct creds_CredentialState);
+ *creds = talloc_reference(mem_ctx, dce_schan_state->creds);
if (!*creds) {
return NT_STATUS_NO_MEMORY;
}
-
- **creds = dce_schan_state->creds;
return NT_STATUS_OK;
}
{
struct dcerpc_schannel_state *dce_schan_state;
- dce_schan_state = talloc_p(gensec_security, struct dcerpc_schannel_state);
+ dce_schan_state = talloc(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;
-
+
return NT_STATUS_OK;
}
static NTSTATUS dcerpc_schannel_server_start(struct gensec_security *gensec_security)
{
NTSTATUS status;
- struct dcerpc_schannel_state *dce_schan_state;
status = dcerpc_schannel_start(gensec_security);
-
- dce_schan_state = gensec_security->private_data;
- dce_schan_state->schannel_state = NULL;
-
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;
- struct dcerpc_schannel_state *dce_schan_state;
status = dcerpc_schannel_start(gensec_security);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- dce_schan_state = gensec_security->private_data;
-
- status = schannel_start(&dce_schan_state->schannel_state,
- gensec_security->user.schan_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);
return NT_STATUS_OK;
}
-/*
- end crypto state
-*/
-static void dcerpc_schannel_end(struct gensec_security *gensec_security)
-{
- struct dcerpc_schannel_state *dce_schan_state = gensec_security->private_data;
-
- schannel_end(&dce_schan_state->schannel_state);
-
- talloc_free(dce_schan_state);
-
- gensec_security->private_data = NULL;
-}
-
/*
get a schannel key using a netlogon challenge on a secondary pipe
*/
static NTSTATUS dcerpc_schannel_key(struct dcerpc_pipe *p,
+ const char *workstation,
const char *domain,
const char *username,
const char *password,
int chan_type,
- uint8_t new_session_key[16])
+ struct creds_CredentialState *creds)
{
NTSTATUS status;
+ struct dcerpc_binding *b;
struct dcerpc_pipe *p2;
struct netr_ServerReqChallenge r;
struct netr_ServerAuthenticate2 a;
struct netr_Credential credentials1, credentials2, credentials3;
struct samr_Password mach_pwd;
- struct creds_CredentialState creds;
- const char *workgroup, *workstation;
+ const char *workgroup;
uint32_t negotiate_flags;
+ TALLOC_CTX *tmp_ctx;
- if (p->flags & DCERPC_SCHANNEL_128) {
+ 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;
+ tmp_ctx = talloc_new(NULL);
+
/*
step 1 - establish a netlogon connection, with no authentication
*/
- status = dcerpc_secondary_connection(p, &p2,
- DCERPC_NETLOGON_NAME,
- DCERPC_NETLOGON_UUID,
- DCERPC_NETLOGON_VERSION);
+
+ /* Find the original binding string */
+ status = dcerpc_parse_binding(tmp_ctx, p->conn->binding_string, &b);
if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to parse dcerpc binding '%s'\n", p->conn->binding_string));
+ talloc_free(tmp_ctx);
return status;
}
+ /* Make binding string for netlogon, not the other pipe */
+ status = dcerpc_epm_map_binding(tmp_ctx, b, DCERPC_NETLOGON_UUID, DCERPC_NETLOGON_VERSION);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s\n",
+ DCERPC_NETLOGON_UUID, nt_errstr(status)));
+ talloc_free(p);
+ return status;
+ }
+
+ status = dcerpc_secondary_connection(p, &p2, b);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ talloc_free(tmp_ctx);
+
+ status = dcerpc_bind_auth_none(p2, DCERPC_NETLOGON_UUID,
+ DCERPC_NETLOGON_VERSION);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(p2);
+ return status;
+ }
/*
step 2 - request a netlogon challenge
step 3 - authenticate on the netlogon pipe
*/
E_md4hash(password, mach_pwd.hash);
- creds_client_init(&creds, &credentials1, &credentials2, &mach_pwd, &credentials3,
+ creds_client_init(creds, &credentials1, &credentials2,
+ workstation, domain, username,
+ &mach_pwd, &credentials3,
negotiate_flags);
a.in.server_name = r.in.server_name;
- a.in.account_name = talloc_asprintf(p, "%s$", workstation);
+ a.in.account_name = username;
a.in.secure_channel_type = chan_type;
a.in.computer_name = workstation;
a.in.negotiate_flags = &negotiate_flags;
return status;
}
- if (!creds_client_check(&creds, a.out.credentials)) {
+ if (!creds_client_check(creds, a.out.credentials)) {
return NT_STATUS_UNSUCCESSFUL;
}
*/
dcerpc_pipe_close(p2);
- memcpy(new_session_key, creds.session_key, 16);
-
return NT_STATUS_OK;
}
do a schannel style bind on a dcerpc pipe. The username is usually
of the form HOSTNAME$ 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 *username,
- const char *password)
+NTSTATUS dcerpc_bind_auth_schannel_withkey(struct dcerpc_pipe *p,
+ const char *uuid, uint_t version,
+ struct creds_CredentialState *creds)
{
NTSTATUS status;
- int chan_type = 0;
+ struct dcerpc_schannel_state *dce_schan_state;
- status = gensec_client_start(p, &p->security_state.generic_state);
+ status = gensec_client_start(p, &p->conn->security_state.generic_state);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- if (p->flags & DCERPC_SCHANNEL_BDC) {
- chan_type = SEC_CHAN_BDC;
- } else if (p->flags & DCERPC_SCHANNEL_WORKSTATION) {
- chan_type = SEC_CHAN_WKSTA;
- } else if (p->flags & DCERPC_SCHANNEL_DOMAIN) {
- chan_type = SEC_CHAN_DOMAIN;
- }
-
- status = dcerpc_schannel_key(p, domain,
- username,
- password,
- chan_type,
- p->security_state.generic_state->user.schan_session_key);
+ status = gensec_set_workstation(p->conn->security_state.generic_state, creds->computer_name);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("Failed to fetch schannel session key: %s\n", nt_errstr(status)));
- gensec_end(&p->security_state.generic_state);
+ DEBUG(1, ("Failed to set schannel workstation to %s: %s\n",
+ creds->computer_name, nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
return status;
}
- status = gensec_set_username(p->security_state.generic_state, username);
+ status = gensec_set_username(p->conn->security_state.generic_state, creds->account_name);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("Failed to set schannel username to %s: %s\n", username, nt_errstr(status)));
- gensec_end(&p->security_state.generic_state);
+ DEBUG(1, ("Failed to set schannel username to %s: %s\n",
+ creds->account_name, nt_errstr(status)));
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
return status;
}
- status = gensec_set_domain(p->security_state.generic_state, domain);
+ status = gensec_set_domain(p->conn->security_state.generic_state, creds->domain);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("Failed to set schannel domain to %s: %s\n", domain, nt_errstr(status)));
- gensec_end(&p->security_state.generic_state);
+ DEBUG(1, ("Failed to set schannel domain to %s: %s\n",
+ creds->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->security_state.generic_state, DCERPC_AUTH_TYPE_SCHANNEL, dcerpc_auth_level(p));
+ status = gensec_start_mech_by_authtype(p->conn->security_state.generic_state,
+ DCERPC_AUTH_TYPE_SCHANNEL,
+ dcerpc_auth_level(p->conn));
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to start SCHANNEL GENSEC backend: %s\n", nt_errstr(status)));
- gensec_end(&p->security_state.generic_state);
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
return status;
}
- status = dcerpc_bind_auth3(p, DCERPC_AUTH_TYPE_SCHANNEL, dcerpc_auth_level(p),
+ dce_schan_state = p->conn->security_state.generic_state->private_data;
+ dce_schan_state->creds = talloc_reference(dce_schan_state, creds);
+
+ status = dcerpc_bind_auth(p, DCERPC_AUTH_TYPE_SCHANNEL, dcerpc_auth_level(p->conn),
uuid, version);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to bind to pipe with SCHANNEL: %s\n", nt_errstr(status)));
- gensec_end(&p->security_state.generic_state);
+ talloc_free(p->conn->security_state.generic_state);
+ p->conn->security_state.generic_state = NULL;
return status;
}
return NT_STATUS_OK;
}
+NTSTATUS dcerpc_bind_auth_schannel(struct dcerpc_pipe *p,
+ const char *uuid, uint_t version,
+ const char *workstation,
+ const char *domain,
+ const char *username,
+ const char *password)
+{
+ NTSTATUS status;
+ int chan_type = 0;
+ struct creds_CredentialState *creds;
+ creds = talloc(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,
+ workstation,
+ username,
+ password,
+ chan_type,
+ creds);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Failed to fetch schannel session key: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+
+ return dcerpc_bind_auth_schannel_withkey(p, uuid, version, creds);
+}
+
+static BOOL dcerpc_schannel_have_feature(struct gensec_security *gensec_security,
+ uint32_t 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",
.session_key = dcerpc_schannel_session_key,
.session_info = dcerpc_schannel_session_info,
.sig_size = dcerpc_schannel_sig_size,
- .end = dcerpc_schannel_end
+ .have_feature = dcerpc_schannel_have_feature,
+ .enabled = True
};
NTSTATUS gensec_dcerpc_schannel_init(void)
{
NTSTATUS ret;
- ret = register_backend("gensec", &gensec_dcerpc_schannel_security_ops);
+ 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));
git.samba.org / nivanova / samba-autobuild / .git / blobdiff