Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 2000
Copyright (C) Robert O'Callahan 2006 (added cached credential code).
Copyright (C) Kai Blin <kai@samba.org> 2008
+ Copyright (C) Simo Sorce 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "includes.h"
+#include "lib/param/param.h"
#include "popt_common.h"
#include "utils/ntlm_auth.h"
#include "../libcli/auth/libcli_auth.h"
#include "../libcli/auth/spnego.h"
-#include "../libcli/auth/ntlmssp.h"
+#include "auth/ntlmssp/ntlmssp.h"
+#include "auth/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h"
+#include "auth/credentials/credentials.h"
+#include "librpc/crypto/gse.h"
#include "smb_krb5.h"
#include <iniparser.h>
#include "../lib/crypto/arcfour.h"
#include "nsswitch/winbind_client.h"
#include "librpc/gen_ndr/krb5pac.h"
#include "../lib/util/asn1.h"
+#include "auth/common_auth.h"
+#include "source3/include/auth.h"
+#include "source3/auth/proto.h"
+#include "nsswitch/libwbclient/wbclient.h"
+#include "lib/param/loadparm.h"
+
+#if HAVE_KRB5
+#include "auth/kerberos/pac_utils.h"
+#endif
#ifndef PAM_WINBIND_CONFIG_FILE
#define PAM_WINBIND_CONFIG_FILE "/etc/security/pam_winbind.conf"
SQUID_2_5_BASIC,
SQUID_2_5_NTLMSSP,
NTLMSSP_CLIENT_1,
- GSS_SPNEGO,
+ GSS_SPNEGO_SERVER,
GSS_SPNEGO_CLIENT,
NTLM_SERVER_1,
NTLM_CHANGE_PASSWORD_1,
CLIENT_ERROR
};
-enum ntlm_auth_svr_state {
- SERVER_INITIAL = 0,
- SERVER_CHALLENGE,
- SERVER_FINISHED,
- SERVER_ERROR
-};
-
struct ntlm_auth_state {
TALLOC_CTX *mem_ctx;
enum stdio_helper_mode helper_mode;
enum ntlm_auth_cli_state cli_state;
- enum ntlm_auth_svr_state svr_state;
struct ntlmssp_state *ntlmssp_state;
uint32_t neg_flags;
char *want_feature_list;
- char *spnego_mech;
- char *spnego_mech_oid;
bool have_session_key;
DATA_BLOB session_key;
DATA_BLOB initial_message;
+ void *gensec_private_1;
};
-
-typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
- int length);
-
-static void manage_squid_basic_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_gss_spnego_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
- char *buf, int length);
-
-static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
- char *buf, int length);
+typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state, char *buf,
+ int length, void **private2);
+
+static void manage_squid_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ stdio_helper_function fn, void **private2);
+
+static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
+
+static void manage_ntlm_change_password_1_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2);
static const struct {
enum stdio_helper_mode mode;
{ SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
{ SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
{ NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
- { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
+ { GSS_SPNEGO_SERVER, "gss-spnego", manage_gss_spnego_request},
{ GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
{ NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
{ NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
static const char *require_membership_of_sid;
static const char *opt_pam_winbind_conf;
+const char *opt_target_service;
+const char *opt_target_hostname;
+
+
+/* This is a bit hairy, but the basic idea is to do a password callback
+ to the calling application. The callback comes from within gensec */
+
+static void manage_gensec_get_pw_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state, char *buf, int length,
+ void **password)
+{
+ DATA_BLOB in;
+ if (strlen(buf) < 2) {
+ DEBUG(1, ("query [%s] invalid", buf));
+ x_fprintf(x_stdout, "BH Query invalid\n");
+ return;
+ }
+
+ if (strlen(buf) > 3) {
+ in = base64_decode_data_blob(buf + 3);
+ } else {
+ in = data_blob(NULL, 0);
+ }
+
+ if (strncmp(buf, "PW ", 3) == 0) {
+
+ *password = talloc_strndup(NULL,
+ (const char *)in.data, in.length);
+
+ if (*password == NULL) {
+ DEBUG(1, ("Out of memory\n"));
+ x_fprintf(x_stdout, "BH Out of memory\n");
+ data_blob_free(&in);
+ return;
+ }
+
+ x_fprintf(x_stdout, "OK\n");
+ data_blob_free(&in);
+ return;
+ }
+ DEBUG(1, ("Asked for (and expected) a password\n"));
+ x_fprintf(x_stdout, "BH Expected a password\n");
+ data_blob_free(&in);
+}
+
+/**
+ * Callback for password credentials. This is not async, and when
+ * GENSEC and the credentials code is made async, it will look rather
+ * different.
+ */
+
+static const char *get_password(struct cli_credentials *credentials)
+{
+ char *password = NULL;
+
+ /* Ask for a password */
+ x_fprintf(x_stdout, "PW\n");
+
+ manage_squid_request(NUM_HELPER_MODES /* bogus */, NULL, NULL, manage_gensec_get_pw_request, (void **)&password);
+ talloc_steal(credentials, password);
+ return password;
+}
+
+/**
+ * A limited set of features are defined with text strings as needed
+ * by ntlm_auth
+ *
+ */
+static void gensec_want_feature_list(struct gensec_security *state, char* feature_list)
+{
+ if (in_list("NTLMSSP_FEATURE_SESSION_KEY", feature_list, true)) {
+ DEBUG(10, ("want GENSEC_FEATURE_SESSION_KEY\n"));
+ gensec_want_feature(state, GENSEC_FEATURE_SESSION_KEY);
+ }
+ if (in_list("NTLMSSP_FEATURE_SIGN", feature_list, true)) {
+ DEBUG(10, ("want GENSEC_FEATURE_SIGN\n"));
+ gensec_want_feature(state, GENSEC_FEATURE_SIGN);
+ }
+ if (in_list("NTLMSSP_FEATURE_SEAL", feature_list, true)) {
+ DEBUG(10, ("want GENSEC_FEATURE_SEAL\n"));
+ gensec_want_feature(state, GENSEC_FEATURE_SEAL);
+ }
+}
+
static char winbind_separator(void)
{
struct winbindd_response response;
if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
NSS_STATUS_SUCCESS) {
- DEBUG(0, ("could not obtain winbind domain name!\n"));
+ DEBUG(1, ("could not obtain winbind domain name!\n"));
return lp_workgroup();
}
if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
NSS_STATUS_SUCCESS) {
- DEBUG(0, ("could not obtain winbind netbios name!\n"));
- return global_myname();
+ DEBUG(1, ("could not obtain winbind netbios name!\n"));
+ return lp_netbios_name();
}
fstrcpy(winbind_netbios_name, response.data.netbios_name);
fstrcpy(user, p+1);
fstrcpy(domain, domuser);
domain[PTR_DIFF(p, domuser)] = 0;
- strupper_m(domain);
-
- return True;
+ return strupper_m(domain);
}
static bool get_require_membership_sid(void) {
if (!parse_ntlm_auth_domain_user(require_membership_of,
request.data.name.dom_name,
request.data.name.name)) {
- DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
+ DEBUG(0, ("Could not parse %s into separate domain/name parts!\n",
require_membership_of));
return False;
}
opt_pam_winbind_conf = PAM_WINBIND_CONFIG_FILE;
}
- d = iniparser_load(CONST_DISCARD(char *, opt_pam_winbind_conf));
+ d = iniparser_load(discard_const_p(char, opt_pam_winbind_conf));
if (!d) {
return 0;
}
- if (iniparser_getboolean(d, CONST_DISCARD(char *, "global:krb5_auth"), false)) {
+ if (iniparser_getboolean(d, discard_const_p(char, "global:krb5_auth"), false)) {
ctrl |= WINBIND_KRB5_AUTH;
}
const DATA_BLOB *lm_response,
const DATA_BLOB *nt_response,
uint32 flags,
+ uint32 extra_logon_parameters,
uint8 lm_key[8],
uint8 user_session_key[16],
char **error_string,
request.flags = flags;
- request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
+ request.data.auth_crap.logon_parameters = extra_logon_parameters
+ | MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
if (require_membership_of_sid)
fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
return nt_status;
}
-static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
- DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
+static NTSTATUS ntlm_auth_generate_session_info(struct auth4_context *auth_context,
+ TALLOC_CTX *mem_ctx,
+ void *server_returned_info,
+ const char *original_user_name,
+ uint32_t session_info_flags,
+ struct auth_session_info **session_info_out)
+{
+ char *unix_username = (char *)server_returned_info;
+ struct auth_session_info *session_info = talloc_zero(mem_ctx, struct auth_session_info);
+ if (!session_info) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ session_info->unix_info = talloc_zero(session_info, struct auth_user_info_unix);
+ if (!session_info->unix_info) {
+ TALLOC_FREE(session_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+ session_info->unix_info->unix_name = talloc_steal(session_info->unix_info, unix_username);
+
+ *session_info_out = session_info;
+
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS ntlm_auth_generate_session_info_pac(struct auth4_context *auth_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct smb_krb5_context *smb_krb5_context,
+ DATA_BLOB *pac_blob,
+ const char *princ_name,
+ const struct tsocket_address *remote_address,
+ uint32_t session_info_flags,
+ struct auth_session_info **session_info)
+{
+ TALLOC_CTX *tmp_ctx;
+ struct PAC_LOGON_INFO *logon_info = NULL;
+ char *unixuser;
+ NTSTATUS status;
+ char *domain = NULL;
+ char *realm = NULL;
+ char *user = NULL;
+ char *p;
+
+ tmp_ctx = talloc_new(mem_ctx);
+ if (!tmp_ctx) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (pac_blob) {
+#ifdef HAVE_KRB5
+ status = kerberos_pac_logon_info(tmp_ctx, *pac_blob, NULL, NULL,
+ NULL, NULL, 0, &logon_info);
+#else
+ status = NT_STATUS_ACCESS_DENIED;
+#endif
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+ }
+
+ DEBUG(3, ("Kerberos ticket principal name is [%s]\n", princ_name));
+
+ p = strchr_m(princ_name, '@');
+ if (!p) {
+ DEBUG(3, ("[%s] Doesn't look like a valid principal\n",
+ princ_name));
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
+ user = talloc_strndup(mem_ctx, princ_name, p - princ_name);
+ if (!user) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ realm = talloc_strdup(talloc_tos(), p + 1);
+ if (!realm) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!strequal(realm, lp_realm())) {
+ DEBUG(3, ("Ticket for foreign realm %s@%s\n", user, realm));
+ if (!lp_allow_trusted_domains()) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
+ }
+
+ if (logon_info && logon_info->info3.base.logon_domain.string) {
+ domain = talloc_strdup(mem_ctx,
+ logon_info->info3.base.logon_domain.string);
+ if (!domain) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ DEBUG(10, ("Domain is [%s] (using PAC)\n", domain));
+ } else {
+
+ /* If we have winbind running, we can (and must) shorten the
+ username by using the short netbios name. Otherwise we will
+ have inconsistent user names. With Kerberos, we get the
+ fully qualified realm, with ntlmssp we get the short
+ name. And even w2k3 does use ntlmssp if you for example
+ connect to an ip address. */
+
+ wbcErr wbc_status;
+ struct wbcDomainInfo *info = NULL;
+
+ DEBUG(10, ("Mapping [%s] to short name using winbindd\n",
+ realm));
+
+ wbc_status = wbcDomainInfo(realm, &info);
+
+ if (WBC_ERROR_IS_OK(wbc_status)) {
+ domain = talloc_strdup(mem_ctx,
+ info->short_name);
+ wbcFreeMemory(info);
+ } else {
+ DEBUG(3, ("Could not find short name: %s\n",
+ wbcErrorString(wbc_status)));
+ domain = talloc_strdup(mem_ctx, realm);
+ }
+ if (!domain) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ DEBUG(10, ("Domain is [%s] (using Winbind)\n", domain));
+ }
+
+ unixuser = talloc_asprintf(tmp_ctx, "%s%c%s", domain, winbind_separator(), user);
+ if (!unixuser) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ status = ntlm_auth_generate_session_info(auth_ctx, mem_ctx, unixuser, NULL, session_info_flags, session_info);
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return status;
+}
+
+
+
+/**
+ * Return the challenge as determined by the authentication subsystem
+ * @return an 8 byte random challenge
+ */
+
+static NTSTATUS ntlm_auth_get_challenge(struct auth4_context *auth_ctx,
+ uint8_t chal[8])
+{
+ if (auth_ctx->challenge.data.length == 8) {
+ DEBUG(5, ("auth_get_challenge: returning previous challenge by module %s (normal)\n",
+ auth_ctx->challenge.set_by));
+ memcpy(chal, auth_ctx->challenge.data.data, 8);
+ return NT_STATUS_OK;
+ }
+
+ if (!auth_ctx->challenge.set_by) {
+ generate_random_buffer(chal, 8);
+
+ auth_ctx->challenge.data = data_blob_talloc(auth_ctx, chal, 8);
+ NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.data.data);
+ auth_ctx->challenge.set_by = "random";
+ }
+
+ DEBUG(10,("auth_get_challenge: challenge set by %s\n",
+ auth_ctx->challenge.set_by));
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * NTLM2 authentication modifies the effective challenge,
+ * @param challenge The new challenge value
+ */
+static NTSTATUS ntlm_auth_set_challenge(struct auth4_context *auth_ctx, const uint8_t chal[8], const char *set_by)
+{
+ auth_ctx->challenge.set_by = talloc_strdup(auth_ctx, set_by);
+ NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.set_by);
+
+ auth_ctx->challenge.data = data_blob_talloc(auth_ctx, chal, 8);
+ NT_STATUS_HAVE_NO_MEMORY(auth_ctx->challenge.data.data);
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Check the password on an NTLMSSP login.
+ *
+ * Return the session keys used on the connection.
+ */
+
+static NTSTATUS winbind_pw_check(struct auth4_context *auth4_context,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ void **server_returned_info,
+ DATA_BLOB *session_key, DATA_BLOB *lm_session_key)
{
static const char zeros[16] = { 0, };
NTSTATUS nt_status;
uint8 user_sess_key[16];
char *unix_name = NULL;
- nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
- ntlmssp_state->client.netbios_name,
- &ntlmssp_state->chal,
- &ntlmssp_state->lm_resp,
- &ntlmssp_state->nt_resp,
+ nt_status = contact_winbind_auth_crap(user_info->client.account_name, user_info->client.domain_name,
+ user_info->workstation_name,
+ &auth4_context->challenge.data,
+ &user_info->password.response.lanman,
+ &user_info->password.response.nt,
WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
+ 0,
lm_key, user_sess_key,
&error_string, &unix_name);
}
if (memcmp(user_sess_key, zeros, 16) != 0) {
- *user_session_key = data_blob_talloc(mem_ctx, user_sess_key, 16);
+ *session_key = data_blob_talloc(mem_ctx, user_sess_key, 16);
}
- ntlmssp_state->callback_private = talloc_strdup(ntlmssp_state,
- unix_name);
+ *server_returned_info = talloc_strdup(mem_ctx,
+ unix_name);
} else {
DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
- ntlmssp_state->domain, ntlmssp_state->user,
- ntlmssp_state->client.netbios_name,
+ user_info->client.domain_name, user_info->client.account_name,
+ user_info->workstation_name,
error_string ? error_string : "unknown error (NULL)"));
- ntlmssp_state->callback_private = NULL;
}
SAFE_FREE(error_string);
return nt_status;
}
-static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, TALLOC_CTX *mem_ctx,
- DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
+static NTSTATUS local_pw_check(struct auth4_context *auth4_context,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ void **server_returned_info,
+ DATA_BLOB *session_key, DATA_BLOB *lm_session_key)
{
NTSTATUS nt_status;
struct samr_Password lm_pw, nt_pw;
nt_status = ntlm_password_check(mem_ctx,
true, true, 0,
- &ntlmssp_state->chal,
- &ntlmssp_state->lm_resp,
- &ntlmssp_state->nt_resp,
- ntlmssp_state->user,
- ntlmssp_state->user,
- ntlmssp_state->domain,
- &lm_pw, &nt_pw, user_session_key, lm_session_key);
+ &auth4_context->challenge.data,
+ &user_info->password.response.lanman,
+ &user_info->password.response.nt,
+ user_info->client.account_name,
+ user_info->client.account_name,
+ user_info->client.domain_name,
+ &lm_pw, &nt_pw, session_key, lm_session_key);
if (NT_STATUS_IS_OK(nt_status)) {
- ntlmssp_state->callback_private = talloc_asprintf(ntlmssp_state,
- "%s%c%s", ntlmssp_state->domain,
- *lp_winbind_separator(),
- ntlmssp_state->user);
+ *server_returned_info = talloc_asprintf(mem_ctx,
+ "%s%c%s", user_info->client.domain_name,
+ *lp_winbind_separator(),
+ user_info->client.account_name);
} else {
DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
- ntlmssp_state->domain, ntlmssp_state->user,
- ntlmssp_state->client.netbios_name,
+ user_info->client.domain_name, user_info->client.account_name,
+ user_info->workstation_name,
nt_errstr(nt_status)));
- ntlmssp_state->callback_private = NULL;
}
return nt_status;
}
}
status = ntlmssp_client_start(NULL,
- global_myname(),
+ lp_netbios_name(),
lp_workgroup(),
lp_client_ntlmv2_auth(),
client_ntlmssp_state);
return NT_STATUS_OK;
}
-static NTSTATUS ntlm_auth_start_ntlmssp_server(struct ntlmssp_state **ntlmssp_state)
+static struct auth4_context *make_auth4_context_ntlm_auth(TALLOC_CTX *mem_ctx, bool local_pw)
{
- NTSTATUS status;
- const char *netbios_name;
- const char *netbios_domain;
- const char *dns_name;
- char *dns_domain;
- bool is_standalone = false;
-
- if (opt_password) {
- netbios_name = global_myname();
- netbios_domain = lp_workgroup();
+ struct auth4_context *auth4_context = talloc_zero(mem_ctx, struct auth4_context);
+ if (auth4_context == NULL) {
+ DEBUG(10, ("failed to allocate auth4_context failed\n"));
+ return NULL;
+ }
+ auth4_context->generate_session_info = ntlm_auth_generate_session_info;
+ auth4_context->generate_session_info_pac = ntlm_auth_generate_session_info_pac;
+ auth4_context->get_ntlm_challenge = ntlm_auth_get_challenge;
+ auth4_context->set_ntlm_challenge = ntlm_auth_set_challenge;
+ if (local_pw) {
+ auth4_context->check_ntlm_password = local_pw_check;
} else {
- netbios_name = get_winbind_netbios_name();
- netbios_domain = get_winbind_domain();
- }
- /* This should be a 'netbios domain -> DNS domain' mapping */
- dns_domain = get_mydnsdomname(talloc_tos());
- if (dns_domain) {
- strlower_m(dns_domain);
- }
- dns_name = get_mydnsfullname();
-
- status = ntlmssp_server_start(NULL,
- is_standalone,
- netbios_name,
- netbios_domain,
- dns_name,
- dns_domain,
- ntlmssp_state);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("Could not start NTLMSSP server: %s\n",
- nt_errstr(status)));
- return status;
+ auth4_context->check_ntlm_password = winbind_pw_check;
}
+ auth4_context->private_data = NULL;
+ return auth4_context;
+}
+
+static NTSTATUS ntlm_auth_start_ntlmssp_server(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ struct gensec_security **gensec_security_out)
+{
+ struct gensec_security *gensec_security;
+ NTSTATUS nt_status;
- /* Have we been given a local password, or should we ask winbind? */
+ TALLOC_CTX *tmp_ctx;
+
+ struct gensec_settings *gensec_settings;
+ size_t idx = 0;
+ struct cli_credentials *server_credentials;
+
+ struct auth4_context *auth4_context;
+
+ tmp_ctx = talloc_new(mem_ctx);
+ NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
+
+ auth4_context = make_auth4_context_ntlm_auth(tmp_ctx, opt_password);
+ if (auth4_context == NULL) {
+ TALLOC_FREE(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ gensec_settings = lpcfg_gensec_settings(tmp_ctx, lp_ctx);
+ if (lp_ctx == NULL) {
+ DEBUG(10, ("lpcfg_gensec_settings failed\n"));
+ TALLOC_FREE(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /*
+ * This should be a 'netbios domain -> DNS domain'
+ * mapping, and can currently validly return NULL on
+ * poorly configured systems.
+ *
+ * This is used for the NTLMSSP server
+ *
+ */
if (opt_password) {
- (*ntlmssp_state)->check_password = local_pw_check;
+ gensec_settings->server_netbios_name = lp_netbios_name();
+ gensec_settings->server_netbios_domain = lp_workgroup();
} else {
- (*ntlmssp_state)->check_password = winbind_pw_check;
+ gensec_settings->server_netbios_name = get_winbind_netbios_name();
+ gensec_settings->server_netbios_domain = get_winbind_domain();
+ }
+
+ gensec_settings->server_dns_domain = strlower_talloc(gensec_settings,
+ get_mydnsdomname(talloc_tos()));
+ gensec_settings->server_dns_name = strlower_talloc(gensec_settings,
+ get_mydnsfullname());
+
+ gensec_settings->backends = talloc_zero_array(gensec_settings,
+ struct gensec_security_ops *, 4);
+
+ if (gensec_settings->backends == NULL) {
+ TALLOC_FREE(tmp_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ gensec_init();
+
+ /* These need to be in priority order, krb5 before NTLMSSP */
+#if defined(HAVE_KRB5)
+ gensec_settings->backends[idx++] = &gensec_gse_krb5_security_ops;
+#endif
+
+ gensec_settings->backends[idx++] = gensec_security_by_oid(NULL, GENSEC_OID_NTLMSSP);
+
+ gensec_settings->backends[idx++] = gensec_security_by_oid(NULL,
+ GENSEC_OID_SPNEGO);
+
+ /*
+ * This is anonymous for now, because we just use it
+ * to set the kerberos state at the moment
+ */
+ server_credentials = cli_credentials_init_anon(tmp_ctx);
+ if (!server_credentials) {
+ DEBUG(0, ("auth_generic_prepare: Failed to init server credentials\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ cli_credentials_set_conf(server_credentials, lp_ctx);
+
+ if (lp_security() == SEC_ADS || USE_KERBEROS_KEYTAB) {
+ cli_credentials_set_kerberos_state(server_credentials, CRED_AUTO_USE_KERBEROS);
+ } else {
+ cli_credentials_set_kerberos_state(server_credentials, CRED_DONT_USE_KERBEROS);
}
+
+ nt_status = gensec_server_start(tmp_ctx, gensec_settings,
+ auth4_context, &gensec_security);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ TALLOC_FREE(tmp_ctx);
+ return nt_status;
+ }
+
+ gensec_set_credentials(gensec_security, server_credentials);
+
+ gensec_want_feature(gensec_security, GENSEC_FEATURE_SIGN);
+ gensec_want_feature(gensec_security, GENSEC_FEATURE_SEAL);
+
+ talloc_unlink(tmp_ctx, lp_ctx);
+ talloc_unlink(tmp_ctx, server_credentials);
+ talloc_unlink(tmp_ctx, gensec_settings);
+ talloc_unlink(tmp_ctx, auth4_context);
+
+ nt_status = gensec_start_mech_by_oid(gensec_security, GENSEC_OID_NTLMSSP);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ TALLOC_FREE(tmp_ctx);
+ return nt_status;
+ }
+
+ *gensec_security_out = talloc_steal(mem_ctx, gensec_security);
+ TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
return NT_STATUS_MORE_PROCESSING_REQUIRED;
}
-static void manage_squid_ntlmssp_request_int(struct ntlm_auth_state *state,
- char *buf, int length,
- TALLOC_CTX *mem_ctx,
- char **response)
-{
- DATA_BLOB request, reply;
- NTSTATUS nt_status;
-
- if (strlen(buf) < 2) {
- DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
- *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
- return;
- }
-
- if (strlen(buf) > 3) {
- if(strncmp(buf, "SF ", 3) == 0){
- DEBUG(10, ("Setting flags to negotioate\n"));
- TALLOC_FREE(state->want_feature_list);
- state->want_feature_list = talloc_strdup(state->mem_ctx,
- buf+3);
- *response = talloc_strdup(mem_ctx, "OK");
- return;
- }
- request = base64_decode_data_blob(buf + 3);
- } else {
- request = data_blob_null;
- }
-
- if ((strncmp(buf, "PW ", 3) == 0)) {
- /* The calling application wants us to use a local password
- * (rather than winbindd) */
-
- opt_password = SMB_STRNDUP((const char *)request.data,
- request.length);
-
- if (opt_password == NULL) {
- DEBUG(1, ("Out of memory\n"));
- *response = talloc_strdup(mem_ctx, "BH Out of memory");
- data_blob_free(&request);
- return;
- }
-
- *response = talloc_strdup(mem_ctx, "OK");
- data_blob_free(&request);
- return;
- }
-
- if (strncmp(buf, "YR", 2) == 0) {
- TALLOC_FREE(state->ntlmssp_state);
- state->svr_state = SERVER_INITIAL;
- } else if (strncmp(buf, "KK", 2) == 0) {
- /* No special preprocessing required */
- } else if (strncmp(buf, "GF", 2) == 0) {
- DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
-
- if (state->svr_state == SERVER_FINISHED) {
- *response = talloc_asprintf(mem_ctx, "GF 0x%08x",
- state->neg_flags);
- }
- else {
- *response = talloc_strdup(mem_ctx, "BH\n");
- }
- data_blob_free(&request);
- return;
- } else if (strncmp(buf, "GK", 2) == 0) {
- DEBUG(10, ("Requested NTLMSSP session key\n"));
- if(state->have_session_key) {
- char *key64 = base64_encode_data_blob(state->mem_ctx,
- state->session_key);
- *response = talloc_asprintf(mem_ctx, "GK %s",
- key64 ? key64 : "<NULL>");
- TALLOC_FREE(key64);
- } else {
- *response = talloc_strdup(mem_ctx, "BH");
- }
-
- data_blob_free(&request);
- return;
- } else {
- DEBUG(1, ("NTLMSSP query [%s] invalid\n", buf));
- *response = talloc_strdup(mem_ctx, "BH NTLMSSP query invalid");
- return;
- }
-
- if (!state->ntlmssp_state) {
- nt_status = ntlm_auth_start_ntlmssp_server(
- &state->ntlmssp_state);
- if (!NT_STATUS_IS_OK(nt_status)) {
- *response = talloc_asprintf(
- mem_ctx, "BH %s", nt_errstr(nt_status));
- return;
- }
- ntlmssp_want_feature_list(state->ntlmssp_state,
- state->want_feature_list);
- }
-
- DEBUG(10, ("got NTLMSSP packet:\n"));
- dump_data(10, request.data, request.length);
-
- nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
-
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
- reply);
- *response = talloc_asprintf(mem_ctx, "TT %s", reply_base64);
- TALLOC_FREE(reply_base64);
- data_blob_free(&reply);
- state->svr_state = SERVER_CHALLENGE;
- DEBUG(10, ("NTLMSSP challenge\n"));
- } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
- *response = talloc_asprintf(mem_ctx, "BH %s",
- nt_errstr(nt_status));
- DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
-
- TALLOC_FREE(state->ntlmssp_state);
- } else if (!NT_STATUS_IS_OK(nt_status)) {
- *response = talloc_asprintf(mem_ctx, "NA %s",
- nt_errstr(nt_status));
- DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
- } else {
- *response = talloc_asprintf(
- mem_ctx, "AF %s",
- (char *)state->ntlmssp_state->callback_private);
- DEBUG(10, ("NTLMSSP OK!\n"));
-
- if(state->have_session_key)
- data_blob_free(&state->session_key);
- state->session_key = data_blob(
- state->ntlmssp_state->session_key.data,
- state->ntlmssp_state->session_key.length);
- state->neg_flags = state->ntlmssp_state->neg_flags;
- state->have_session_key = true;
- state->svr_state = SERVER_FINISHED;
- }
-
- data_blob_free(&request);
-}
-
-static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
- char *buf, int length)
-{
- char *response;
-
- manage_squid_ntlmssp_request_int(state, buf, length,
- talloc_tos(), &response);
-
- if (response == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
- return;
- }
- x_fprintf(x_stdout, "%s\n", response);
- TALLOC_FREE(response);
-}
-
-static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
- char *buf, int length)
+static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
{
DATA_BLOB request, reply;
NTSTATUS nt_status;
data_blob_free(&request);
}
-static void manage_squid_basic_request(struct ntlm_auth_state *state,
- char *buf, int length)
+static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
{
char *user, *pass;
user=buf;
}
}
-static void offer_gss_spnego_mechs(void) {
-
- DATA_BLOB token;
- struct spnego_data spnego;
- ssize_t len;
- char *reply_base64;
- TALLOC_CTX *ctx = talloc_tos();
- char *principal;
- char *myname_lower;
-
- ZERO_STRUCT(spnego);
-
- myname_lower = talloc_strdup(ctx, global_myname());
- if (!myname_lower) {
- return;
- }
- strlower_m(myname_lower);
-
- principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
- if (!principal) {
- return;
- }
-
- /* Server negTokenInit (mech offerings) */
- spnego.type = SPNEGO_NEG_TOKEN_INIT;
- spnego.negTokenInit.mechTypes = talloc_array(ctx, const char *, 4);
-#ifdef HAVE_KRB5
- spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_KERBEROS5_OLD);
- spnego.negTokenInit.mechTypes[1] = talloc_strdup(ctx, OID_KERBEROS5);
- spnego.negTokenInit.mechTypes[2] = talloc_strdup(ctx, OID_NTLMSSP);
- spnego.negTokenInit.mechTypes[3] = NULL;
-#else
- spnego.negTokenInit.mechTypes[0] = talloc_strdup(ctx, OID_NTLMSSP);
- spnego.negTokenInit.mechTypes[1] = NULL;
-#endif
-
-
- spnego.negTokenInit.mechListMIC = data_blob_talloc(ctx, principal,
- strlen(principal));
-
- len = spnego_write_data(ctx, &token, &spnego);
- spnego_free_data(&spnego);
-
- if (len == -1) {
- DEBUG(1, ("Could not write SPNEGO data blob\n"));
- x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
- return;
- }
-
- reply_base64 = base64_encode_data_blob(talloc_tos(), token);
- x_fprintf(x_stdout, "TT %s *\n", reply_base64);
-
- TALLOC_FREE(reply_base64);
- data_blob_free(&token);
- DEBUG(10, ("sent SPNEGO negTokenInit\n"));
- return;
-}
-
-bool spnego_parse_krb5_wrap(TALLOC_CTX *ctx, DATA_BLOB blob, DATA_BLOB *ticket, uint8 tok_id[2])
+static void manage_gensec_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ char *buf, int length, void **private1)
{
- bool ret;
- ASN1_DATA *data;
- int data_remaining;
+ DATA_BLOB in;
+ DATA_BLOB out = data_blob(NULL, 0);
+ char *out_base64 = NULL;
+ const char *reply_arg = NULL;
+ struct gensec_ntlm_state {
+ struct gensec_security *gensec_state;
+ const char *set_password;
+ };
+ struct gensec_ntlm_state *state;
- data = asn1_init(talloc_tos());
- if (data == NULL) {
- return false;
- }
+ NTSTATUS nt_status;
+ bool first = false;
+ const char *reply_code;
+ struct cli_credentials *creds;
- asn1_load(data, blob);
- asn1_start_tag(data, ASN1_APPLICATION(0));
- asn1_check_OID(data, OID_KERBEROS5);
+ static char *want_feature_list = NULL;
+ static DATA_BLOB session_key;
- data_remaining = asn1_tag_remaining(data);
+ TALLOC_CTX *mem_ctx;
- if (data_remaining < 3) {
- data->has_error = True;
+ if (*private1) {
+ state = (struct gensec_ntlm_state *)*private1;
} else {
- asn1_read(data, tok_id, 2);
- data_remaining -= 2;
- *ticket = data_blob_talloc(ctx, NULL, data_remaining);
- asn1_read(data, ticket->data, ticket->length);
- }
-
- asn1_end_tag(data);
-
- ret = !data->has_error;
-
- if (data->has_error) {
- data_blob_free(ticket);
+ state = talloc_zero(NULL, struct gensec_ntlm_state);
+ if (!state) {
+ x_fprintf(x_stdout, "BH No Memory\n");
+ exit(1);
+ }
+ *private1 = state;
+ if (opt_password) {
+ state->set_password = opt_password;
+ }
}
- asn1_free(data);
-
- return ret;
-}
-
-static void manage_gss_spnego_request(struct ntlm_auth_state *state,
- char *buf, int length)
-{
- struct spnego_data request, response;
- DATA_BLOB token;
- DATA_BLOB raw_in_token = data_blob_null;
- DATA_BLOB raw_out_token = data_blob_null;
- NTSTATUS status;
- ssize_t len;
- TALLOC_CTX *ctx = talloc_tos();
-
- char *user = NULL;
- char *domain = NULL;
-
- const char *reply_code;
- char *reply_base64;
- char *reply_argument = NULL;
- char *supportedMech = NULL;
-
if (strlen(buf) < 2) {
- DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
- x_fprintf(x_stdout, "BH SPENGO query invalid\n");
- return;
- }
-
- if (strncmp(buf, "YR", 2) == 0) {
- TALLOC_FREE(state->ntlmssp_state);
- TALLOC_FREE(state->spnego_mech);
- TALLOC_FREE(state->spnego_mech_oid);
- } else if (strncmp(buf, "KK", 2) == 0) {
- ;
- } else {
- DEBUG(1, ("SPENGO query [%s] invalid\n", buf));
- x_fprintf(x_stdout, "BH SPENGO query invalid\n");
- return;
- }
-
- if ( (strlen(buf) == 2)) {
-
- /* no client data, get the negTokenInit offering
- mechanisms */
-
- offer_gss_spnego_mechs();
+ DEBUG(1, ("query [%s] invalid", buf));
+ x_fprintf(x_stdout, "BH Query invalid\n");
return;
}
- /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
-
- if (strlen(buf) <= 3) {
- DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
- x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
- return;
- }
-
- token = base64_decode_data_blob(buf + 3);
-
- if ((token.length >= 7)
- && (strncmp((char *)token.data, "NTLMSSP", 7) == 0)) {
- char *reply;
-
- data_blob_free(&token);
-
- DEBUG(10, ("Could not parse GSS-SPNEGO, trying raw "
- "ntlmssp\n"));
-
- manage_squid_ntlmssp_request_int(state, buf, length,
- talloc_tos(), &reply);
- if (reply == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
+ if (strlen(buf) > 3) {
+ if(strncmp(buf, "SF ", 3) == 0) {
+ DEBUG(10, ("Setting flags to negotiate\n"));
+ talloc_free(want_feature_list);
+ want_feature_list = talloc_strndup(state, buf+3, strlen(buf)-3);
+ x_fprintf(x_stdout, "OK\n");
return;
}
-
- if (strncmp(reply, "AF ", 3) == 0) {
- x_fprintf(x_stdout, "AF * %s\n", reply+3);
- } else {
- x_fprintf(x_stdout, "%s *\n", reply);
- }
-
- TALLOC_FREE(reply);
- return;
+ in = base64_decode_data_blob(buf + 3);
+ } else {
+ in = data_blob(NULL, 0);
}
- ZERO_STRUCT(request);
- len = spnego_read_data(ctx, token, &request);
- data_blob_free(&token);
-
- if (len == -1) {
- DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
- x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
+ if (strncmp(buf, "YR", 2) == 0) {
+ if (state->gensec_state) {
+ talloc_free(state->gensec_state);
+ state->gensec_state = NULL;
+ }
+ } else if ( (strncmp(buf, "OK", 2) == 0)) {
+ /* Just return BH, like ntlm_auth from Samba 3 does. */
+ x_fprintf(x_stdout, "BH Command expected\n");
+ data_blob_free(&in);
+ return;
+ } else if ( (strncmp(buf, "TT ", 3) != 0) &&
+ (strncmp(buf, "KK ", 3) != 0) &&
+ (strncmp(buf, "AF ", 3) != 0) &&
+ (strncmp(buf, "NA ", 3) != 0) &&
+ (strncmp(buf, "UG", 2) != 0) &&
+ (strncmp(buf, "PW ", 3) != 0) &&
+ (strncmp(buf, "GK", 2) != 0) &&
+ (strncmp(buf, "GF", 2) != 0)) {
+ DEBUG(1, ("SPNEGO request [%s] invalid prefix\n", buf));
+ x_fprintf(x_stdout, "BH SPNEGO request invalid prefix\n");
+ data_blob_free(&in);
return;
}
- if (request.type == SPNEGO_NEG_TOKEN_INIT) {
-#ifdef HAVE_KRB5
- int krb5_idx = -1;
-#endif
- int ntlm_idx = -1;
- int used_idx = -1;
- int i;
-
- if (state->spnego_mech) {
- DEBUG(1, ("Client restarted SPNEGO with NegTokenInit "
- "while mech[%s] was already negotiated\n",
- state->spnego_mech));
- x_fprintf(x_stdout, "BH Client send NegTokenInit twice\n");
- return;
- }
+ mem_ctx = talloc_named(NULL, 0, "manage_gensec_request internal mem_ctx");
- /* Second request from Client. This is where the
- client offers its mechanism to use. */
+ /* setup gensec */
+ if (!(state->gensec_state)) {
+ switch (stdio_helper_mode) {
+ case GSS_SPNEGO_CLIENT:
+ case NTLMSSP_CLIENT_1:
+ /* setup the client side */
- if ( (request.negTokenInit.mechTypes == NULL) ||
- (request.negTokenInit.mechTypes[0] == NULL) ) {
- DEBUG(1, ("Client did not offer any mechanism\n"));
- x_fprintf(x_stdout, "BH Client did not offer any "
- "mechanism\n");
- return;
- }
+ nt_status = gensec_client_start(NULL, &state->gensec_state,
+ lpcfg_gensec_settings(NULL, lp_ctx));
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ x_fprintf(x_stdout, "BH GENSEC mech failed to start: %s\n", nt_errstr(nt_status));
+ talloc_free(mem_ctx);
+ return;
+ }
- status = NT_STATUS_UNSUCCESSFUL;
- for (i = 0; request.negTokenInit.mechTypes[i] != NULL; i++) {
- DEBUG(10,("got mech[%d][%s]\n",
- i, request.negTokenInit.mechTypes[i]));
-#ifdef HAVE_KRB5
- if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5_OLD) == 0) {
- krb5_idx = i;
- break;
+ creds = cli_credentials_init(state->gensec_state);
+ cli_credentials_set_conf(creds, lp_ctx);
+ if (opt_username) {
+ cli_credentials_set_username(creds, opt_username, CRED_SPECIFIED);
}
- if (strcmp(request.negTokenInit.mechTypes[i], OID_KERBEROS5) == 0) {
- krb5_idx = i;
- break;
+ if (opt_domain) {
+ cli_credentials_set_domain(creds, opt_domain, CRED_SPECIFIED);
}
-#endif
- if (strcmp(request.negTokenInit.mechTypes[i], OID_NTLMSSP) == 0) {
- ntlm_idx = i;
- break;
+ if (state->set_password) {
+ cli_credentials_set_password(creds, state->set_password, CRED_SPECIFIED);
+ } else {
+ cli_credentials_set_password_callback(creds, get_password);
}
- }
-
- used_idx = ntlm_idx;
-#ifdef HAVE_KRB5
- if (krb5_idx != -1) {
- ntlm_idx = -1;
- used_idx = krb5_idx;
- }
-#endif
- if (ntlm_idx > -1) {
- state->spnego_mech = talloc_strdup(state, "ntlmssp");
- if (state->spnego_mech == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
- return;
+ if (opt_workstation) {
+ cli_credentials_set_workstation(creds, opt_workstation, CRED_SPECIFIED);
}
- if (state->ntlmssp_state) {
- DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
- "already got one\n"));
- x_fprintf(x_stdout, "BH Client wants a new "
- "NTLMSSP challenge, but "
- "already got one\n");
- TALLOC_FREE(state->ntlmssp_state);
- return;
- }
+ gensec_set_credentials(state->gensec_state, creds);
- status = ntlm_auth_start_ntlmssp_server(&state->ntlmssp_state);
- if (!NT_STATUS_IS_OK(status)) {
- x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
+ break;
+ case GSS_SPNEGO_SERVER:
+ case SQUID_2_5_NTLMSSP:
+ {
+ nt_status = ntlm_auth_start_ntlmssp_server(state, lp_ctx,
+ &state->gensec_state);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ x_fprintf(x_stdout, "BH GENSEC mech failed to start: %s\n", nt_errstr(nt_status));
+ talloc_free(mem_ctx);
return;
}
+ break;
}
-
-#ifdef HAVE_KRB5
- if (krb5_idx > -1) {
- state->spnego_mech = talloc_strdup(state, "krb5");
- if (state->spnego_mech == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
- return;
- }
+ default:
+ talloc_free(mem_ctx);
+ abort();
}
-#endif
- if (used_idx > -1) {
- state->spnego_mech_oid = talloc_strdup(state,
- request.negTokenInit.mechTypes[used_idx]);
- if (state->spnego_mech_oid == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
- return;
+
+ gensec_want_feature_list(state->gensec_state, want_feature_list);
+
+ switch (stdio_helper_mode) {
+ case GSS_SPNEGO_CLIENT:
+ case GSS_SPNEGO_SERVER:
+ nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_SPNEGO);
+ if (!in.length) {
+ first = true;
}
- supportedMech = talloc_strdup(ctx, state->spnego_mech_oid);
- if (supportedMech == NULL) {
- x_fprintf(x_stdout, "BH Out of memory\n");
- return;
+ break;
+ case NTLMSSP_CLIENT_1:
+ if (!in.length) {
+ first = true;
}
-
- status = NT_STATUS_MORE_PROCESSING_REQUIRED;
- } else {
- status = NT_STATUS_NOT_SUPPORTED;
- }
- if (used_idx == 0) {
- status = NT_STATUS_OK;
- raw_in_token = request.negTokenInit.mechToken;
- }
- } else {
- if (state->spnego_mech == NULL) {
- DEBUG(1,("Got netTokenTarg without negTokenInit\n"));
- x_fprintf(x_stdout, "BH Got a negTokenTarg without "
- "negTokenInit\n");
- return;
+ /* fall through */
+ case SQUID_2_5_NTLMSSP:
+ nt_status = gensec_start_mech_by_oid(state->gensec_state, GENSEC_OID_NTLMSSP);
+ break;
+ default:
+ talloc_free(mem_ctx);
+ abort();
}
- if ((request.negTokenTarg.supportedMech != NULL) &&
- (strcmp(request.negTokenTarg.supportedMech, state->spnego_mech_oid) != 0 ) ) {
- DEBUG(1, ("Got a negTokenTarg with mech[%s] while [%s] was already negotiated\n",
- request.negTokenTarg.supportedMech,
- state->spnego_mech_oid));
- x_fprintf(x_stdout, "BH Got a negTokenTarg with speficied mech\n");
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(1, ("GENSEC mech failed to start: %s\n", nt_errstr(nt_status)));
+ x_fprintf(x_stdout, "BH GENSEC mech failed to start\n");
+ talloc_free(mem_ctx);
return;
}
- status = NT_STATUS_OK;
- raw_in_token = request.negTokenTarg.responseToken;
}
- if (!NT_STATUS_IS_OK(status)) {
- /* error or more processing */
- } else if (strcmp(state->spnego_mech, "ntlmssp") == 0) {
+ /* update */
- DEBUG(10, ("got NTLMSSP packet:\n"));
- dump_data(10, raw_in_token.data, raw_in_token.length);
+ if (strncmp(buf, "PW ", 3) == 0) {
+ state->set_password = talloc_strndup(state,
+ (const char *)in.data,
+ in.length);
- status = ntlmssp_update(state->ntlmssp_state,
- raw_in_token,
- &raw_out_token);
- if (NT_STATUS_IS_OK(status)) {
- user = talloc_strdup(ctx, state->ntlmssp_state->user);
- domain = talloc_strdup(ctx, state->ntlmssp_state->domain);
- }
- if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- TALLOC_FREE(state->ntlmssp_state);
- }
-#ifdef HAVE_KRB5
- } else if (strcmp(state->spnego_mech, "krb5") == 0) {
- char *principal;
- DATA_BLOB ap_rep;
- DATA_BLOB session_key;
- struct PAC_LOGON_INFO *logon_info = NULL;
- DATA_BLOB ticket;
- uint8_t tok_id[2];
-
- if (!spnego_parse_krb5_wrap(ctx, raw_in_token,
- &ticket, tok_id)) {
- DEBUG(1, ("spnego_parse_krb5_wrap failed\n"));
- x_fprintf(x_stdout, "BH spnego_parse_krb5_wrap failed\n");
+ cli_credentials_set_password(gensec_get_credentials(state->gensec_state),
+ state->set_password,
+ CRED_SPECIFIED);
+ x_fprintf(x_stdout, "OK\n");
+ data_blob_free(&in);
+ talloc_free(mem_ctx);
+ return;
+ }
+
+ if (strncmp(buf, "GK", 2) == 0) {
+ char *base64_key;
+ DEBUG(10, ("Requested session key\n"));
+ nt_status = gensec_session_key(state->gensec_state, mem_ctx, &session_key);
+ if(!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(1, ("gensec_session_key failed: %s\n", nt_errstr(nt_status)));
+ x_fprintf(x_stdout, "BH No session key\n");
+ talloc_free(mem_ctx);
return;
+ } else {
+ base64_key = base64_encode_data_blob(state, session_key);
+ x_fprintf(x_stdout, "GK %s\n", base64_key);
+ talloc_free(base64_key);
}
+ talloc_free(mem_ctx);
+ return;
+ }
- status = ads_verify_ticket(ctx, lp_realm(), 0,
- &ticket,
- &principal, &logon_info, &ap_rep,
- &session_key, True);
-
- /* Now in "principal" we have the name we are authenticated as. */
+ if (stdio_helper_mode == SQUID_2_5_NTLMSSP && strncmp(buf, "GF", 2) == 0) {
+ uint32_t neg_flags;
- if (NT_STATUS_IS_OK(status)) {
+ neg_flags = gensec_ntlmssp_neg_flags(state->gensec_state);
- domain = strchr_m(principal, '@');
+ DEBUG(10, ("Requested negotiated feature flags\n"));
+ x_fprintf(x_stdout, "GF 0x%08x\n", neg_flags);
+ return;
+ }
- if (domain == NULL) {
- DEBUG(1, ("Did not get a valid principal "
- "from ads_verify_ticket\n"));
- x_fprintf(x_stdout, "BH Did not get a "
- "valid principal from "
- "ads_verify_ticket\n");
- return;
- }
+ nt_status = gensec_update(state->gensec_state, mem_ctx, NULL, in, &out);
- *domain++ = '\0';
- domain = talloc_strdup(ctx, domain);
- user = talloc_strdup(ctx, principal);
+ /* don't leak 'bad password'/'no such user' info to the network client */
+ nt_status = nt_status_squash(nt_status);
- if (logon_info) {
- netsamlogon_cache_store(
- user, &logon_info->info3);
- }
+ if (out.length) {
+ out_base64 = base64_encode_data_blob(mem_ctx, out);
+ } else {
+ out_base64 = NULL;
+ }
- data_blob_free(&ap_rep);
- data_blob_free(&session_key);
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
+ reply_arg = "*";
+ if (first && state->gensec_state->gensec_role == GENSEC_CLIENT) {
+ reply_code = "YR";
+ } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
+ reply_code = "KK";
+ } else if (state->gensec_state->gensec_role == GENSEC_SERVER) {
+ reply_code = "TT";
+ } else {
+ abort();
}
- data_blob_free(&ticket);
-#endif
- }
- spnego_free_data(&request);
- ZERO_STRUCT(response);
- response.type = SPNEGO_NEG_TOKEN_TARG;
- if (NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(state->spnego_mech);
- TALLOC_FREE(state->spnego_mech_oid);
- response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
- response.negTokenTarg.responseToken = raw_out_token;
- reply_code = "AF";
- reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
- } else if (NT_STATUS_EQUAL(status,
- NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- response.negTokenTarg.supportedMech = supportedMech;
- response.negTokenTarg.responseToken = raw_out_token;
- response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
- reply_code = "TT";
- reply_argument = talloc_strdup(ctx, "*");
- } else {
- TALLOC_FREE(state->spnego_mech);
- TALLOC_FREE(state->spnego_mech_oid);
- data_blob_free(&raw_out_token);
- response.negTokenTarg.negResult = SPNEGO_REJECT;
+ } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
+ reply_code = "BH NT_STATUS_ACCESS_DENIED";
+ reply_arg = nt_errstr(nt_status);
+ DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
+ } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_UNSUCCESSFUL)) {
+ reply_code = "BH NT_STATUS_UNSUCCESSFUL";
+ reply_arg = nt_errstr(nt_status);
+ DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
+ } else if (!NT_STATUS_IS_OK(nt_status)) {
reply_code = "NA";
- reply_argument = talloc_strdup(ctx, nt_errstr(status));
- }
+ reply_arg = nt_errstr(nt_status);
+ DEBUG(1, ("GENSEC login failed: %s\n", nt_errstr(nt_status)));
+ } else if /* OK */ (state->gensec_state->gensec_role == GENSEC_SERVER) {
+ struct auth_session_info *session_info;
- if (!reply_argument) {
- DEBUG(1, ("Could not write SPNEGO data blob\n"));
- x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
- spnego_free_data(&response);
- return;
- }
-
- len = spnego_write_data(ctx, &token, &response);
- spnego_free_data(&response);
+ nt_status = gensec_session_info(state->gensec_state, mem_ctx, &session_info);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ reply_code = "BH Failed to retrive session info";
+ reply_arg = nt_errstr(nt_status);
+ DEBUG(1, ("GENSEC failed to retrieve the session info: %s\n", nt_errstr(nt_status)));
+ } else {
- if (len == -1) {
- DEBUG(1, ("Could not write SPNEGO data blob\n"));
- x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
- return;
+ reply_code = "AF";
+ reply_arg = session_info->unix_info->unix_name;
+ talloc_free(session_info);
+ }
+ } else if (state->gensec_state->gensec_role == GENSEC_CLIENT) {
+ reply_code = "AF";
+ reply_arg = out_base64;
+ } else {
+ abort();
}
- reply_base64 = base64_encode_data_blob(talloc_tos(), token);
+ switch (stdio_helper_mode) {
+ case GSS_SPNEGO_SERVER:
+ x_fprintf(x_stdout, "%s %s %s\n", reply_code,
+ out_base64 ? out_base64 : "*",
+ reply_arg ? reply_arg : "*");
+ break;
+ default:
+ if (out_base64) {
+ x_fprintf(x_stdout, "%s %s\n", reply_code, out_base64);
+ } else if (reply_arg) {
+ x_fprintf(x_stdout, "%s %s\n", reply_code, reply_arg);
+ } else {
+ x_fprintf(x_stdout, "%s\n", reply_code);
+ }
+ }
- x_fprintf(x_stdout, "%s %s %s\n",
- reply_code, reply_base64, reply_argument);
+ talloc_free(mem_ctx);
+ return;
+}
- TALLOC_FREE(reply_base64);
- data_blob_free(&token);
+static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
+{
+ manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
+ return;
+}
+static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
+{
+ manage_gensec_request(stdio_helper_mode, lp_ctx, buf, length, &state->gensec_private_1);
return;
}
spnego.negTokenTarg.responseToken,
&request);
- if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) && !NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED or OK from "
"ntlmssp_client_update, got: %s\n",
nt_errstr(status)));
x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
spnego.type = SPNEGO_NEG_TOKEN_TARG;
spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
- spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
+ spnego.negTokenTarg.supportedMech = (const char *)OID_NTLMSSP;
spnego.negTokenTarg.responseToken = request;
spnego.negTokenTarg.mechListMIC = null_blob;
static bool manage_client_krb5_init(struct spnego_data spnego)
{
char *principal;
- DATA_BLOB tkt, to_server;
+ DATA_BLOB tkt, tkt_wrapped, to_server;
DATA_BLOB session_key_krb5 = data_blob_null;
struct spnego_data reply;
char *reply_base64;
ssize_t len;
TALLOC_CTX *ctx = talloc_tos();
- if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
- (spnego.negTokenInit.mechListMIC.length == 0) ) {
- DEBUG(1, ("Did not get a principal for krb5\n"));
- return False;
+ principal = spnego.negTokenInit.targetPrincipal;
+
+ /* We may not be allowed to use the server-supplied SPNEGO principal, or it may not have been supplied to us
+ */
+ if (!lp_client_use_spnego_principal() || strequal(principal, ADS_IGNORE_PRINCIPAL)) {
+ principal = NULL;
}
+
+ if (principal == NULL &&
+ opt_target_service && opt_target_hostname && !is_ipaddress(opt_target_hostname)) {
+ DEBUG(3,("manage_client_krb5_init: using target "
+ "hostname not SPNEGO principal\n"));
- principal = (char *)SMB_MALLOC(
- spnego.negTokenInit.mechListMIC.length+1);
+ principal = kerberos_get_principal_from_service_hostname(talloc_tos(),
+ opt_target_service,
+ opt_target_hostname,
+ lp_realm());
+ if (!principal) {
+ return false;
+ }
+
+ DEBUG(3,("manage_client_krb5_init: guessed "
+ "server principal=%s\n",
+ principal ? principal : "<null>"));
+ }
+
if (principal == NULL) {
- DEBUG(1, ("Could not malloc principal\n"));
- return False;
+ DEBUG(3,("manage_client_krb5_init: could not guess server principal\n"));
+ return false;
}
- memcpy(principal, spnego.negTokenInit.mechListMIC.data,
- spnego.negTokenInit.mechListMIC.length);
- principal[spnego.negTokenInit.mechListMIC.length] = '\0';
-
retval = cli_krb5_get_ticket(ctx, principal, 0,
&tkt, &session_key_krb5,
0, NULL, NULL, NULL);
DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
return False;
}
+
}
+ /* wrap that up in a nice GSS-API wrapping */
+ tkt_wrapped = spnego_gen_krb5_wrap(ctx, tkt, TOK_ID_KRB_AP_REQ);
+
data_blob_free(&session_key_krb5);
ZERO_STRUCT(reply);
reply.negTokenInit.mechTypes = my_mechs;
reply.negTokenInit.reqFlags = data_blob_null;
reply.negTokenInit.reqFlagsPadding = 0;
- reply.negTokenInit.mechToken = tkt;
+ reply.negTokenInit.mechToken = tkt_wrapped;
reply.negTokenInit.mechListMIC = data_blob_null;
len = spnego_write_data(ctx, &to_server, &reply);
#endif
-static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
- char *buf, int length)
+static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
{
DATA_BLOB request;
struct spnego_data spnego;
return;
}
-static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
- char *buf, int length)
+static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
{
char *request, *parameter;
static DATA_BLOB challenge;
if (!NT_STATUS_IS_OK(
contact_winbind_auth_crap(username,
domain,
- global_myname(),
+ lp_netbios_name(),
&challenge,
&lm_response,
&nt_response,
- flags,
+ flags, 0,
lm_key,
user_session_key,
&error_string,
}
}
-static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
- char *buf, int length)
+static void manage_ntlm_change_password_1_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ char *buf, int length, void **private2)
{
char *request, *parameter;
static DATA_BLOB new_nt_pswd;
}
}
-static void manage_squid_request(struct ntlm_auth_state *state,
- stdio_helper_function fn)
+static void manage_squid_request(enum stdio_helper_mode stdio_helper_mode,
+ struct loadparm_context *lp_ctx,
+ struct ntlm_auth_state *state,
+ stdio_helper_function fn, void **private2)
{
char *buf;
char tmp[INITIAL_BUFFER_SIZE+1];
return;
}
- fn(state, buf, length);
+ fn(stdio_helper_mode, lp_ctx, state, buf, length, private2);
talloc_free(buf);
}
-static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
+static void squid_stream(enum stdio_helper_mode stdio_mode,
+ struct loadparm_context *lp_ctx,
+ stdio_helper_function fn) {
TALLOC_CTX *mem_ctx;
struct ntlm_auth_state *state;
while(1) {
TALLOC_CTX *frame = talloc_stackframe();
- manage_squid_request(state, fn);
+ manage_squid_request(stdio_mode, lp_ctx, state, fn, NULL);
TALLOC_FREE(frame);
}
}
&opt_challenge,
&opt_lm_response,
&opt_nt_response,
- flags,
+ flags, 0,
(unsigned char *)lm_key,
(unsigned char *)user_session_key,
&error_string, NULL);
OPT_DIAGNOSTICS,
OPT_REQUIRE_MEMBERSHIP,
OPT_USE_CACHED_CREDS,
- OPT_PAM_WINBIND_CONF
+ OPT_PAM_WINBIND_CONF,
+ OPT_TARGET_SERVICE,
+ OPT_TARGET_HOSTNAME
};
int main(int argc, const char **argv)
static const char *hex_challenge;
static const char *hex_lm_response;
static const char *hex_nt_response;
-
+ struct loadparm_context *lp_ctx;
poptContext pc;
/* NOTE: DO NOT change this interface without considering the implications!
"Perform diagnostics on the authentication chain"},
{ "require-membership-of", 0, POPT_ARG_STRING, &require_membership_of, OPT_REQUIRE_MEMBERSHIP, "Require that a user be a member of this group (either name or SID) for authentication to succeed" },
{ "pam-winbind-conf", 0, POPT_ARG_STRING, &opt_pam_winbind_conf, OPT_PAM_WINBIND_CONF, "Require that request must set WBFLAG_PAM_CONTACT_TRUSTDOM when krb5 auth is required" },
+ { "target-service", 0, POPT_ARG_STRING, &opt_target_service, OPT_TARGET_SERVICE, "Target service (eg http)" },
+ { "target-hostname", 0, POPT_ARG_STRING, &opt_target_hostname, OPT_TARGET_HOSTNAME, "Target hostname" },
POPT_COMMON_CONFIGFILE
POPT_COMMON_VERSION
POPT_TABLEEND
poptFreeContext(pc);
- if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
+ if (!lp_load_global(get_dyn_CONFIGFILE())) {
d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
get_dyn_CONFIGFILE(), strerror(errno));
exit(1);
break;
case OPT_REQUIRE_MEMBERSHIP:
- if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
+ if (strncasecmp_m("S-", require_membership_of, 2) == 0) {
require_membership_of_sid = require_membership_of;
}
break;
opt_workstation = "";
}
+ lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
+ if (lp_ctx == NULL) {
+ x_fprintf(x_stderr, "loadparm_init_s3() failed!\n");
+ exit(1);
+ }
+
if (helper_protocol) {
int i;
for (i=0; i<NUM_HELPER_MODES; i++) {
if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
- squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
+ squid_stream(stdio_helper_protocols[i].mode, lp_ctx, stdio_helper_protocols[i].fn);
exit(0);
}
}
}
if (!opt_password) {
- opt_password = getpass("password: ");
+ char pwd[256] = {0};
+ int rc;
+
+ rc = samba_getpass("Password: ", pwd, sizeof(pwd), false, false);
+ if (rc == 0) {
+ opt_password = SMB_STRDUP(pwd);
+ }
}
if (diagnostics) {
git.samba.org / nivanova / samba-autobuild / .git / blobdiff