#include "includes.h"
#include "system/filesys.h"
-#include "lib/cmdline/popt_common.h"
#include "include/secrets.h"
#include "lib/ldb/include/ldb.h"
+#include "librpc/gen_ndr/ndr_samr.h" /* for struct samrPassword */
+#include "system/kerberos.h"
+#include "auth/kerberos/kerberos.h"
+
/**
* Create a new credentials structure
cred->password_obtained = CRED_UNINITIALISED;
cred->domain_obtained = CRED_UNINITIALISED;
cred->realm_obtained = CRED_UNINITIALISED;
+ cred->ccache_obtained = CRED_UNINITIALISED;
+ cred->principal_obtained = CRED_UNINITIALISED;
return cred;
}
* @retval The username set on this context.
* @note Return value will never be NULL except by programmer error.
*/
-const char *cli_credentials_get_username(struct cli_credentials *cred)
+const char *cli_credentials_get_username(struct cli_credentials *cred, TALLOC_CTX *mem_ctx)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred);
}
+ /* If we have a principal set on this, we want to login with "" domain and user@realm */
+ if (cred->username_obtained < cred->principal_obtained) {
+ return cli_credentials_get_principal(cred, mem_ctx);
+ }
+
if (cred->username_obtained == CRED_CALLBACK) {
cred->username = cred->username_cb(cred);
cred->username_obtained = CRED_SPECIFIED;
}
- return cred->username;
+ return talloc_reference(mem_ctx, cred->username);
}
-BOOL cli_credentials_set_username(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+BOOL cli_credentials_set_username(struct cli_credentials *cred,
+ const char *val, enum credentials_obtained obtained)
{
if (obtained >= cred->username_obtained) {
cred->username = talloc_strdup(cred, val);
return False;
}
+BOOL cli_credentials_set_username_callback(struct cli_credentials *cred,
+ const char *(*username_cb) (struct cli_credentials *))
+{
+ if (cred->username_obtained < CRED_CALLBACK) {
+ cred->username_cb = username_cb;
+ cred->username_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+
+
+/**
+ * Obtain the client principal for this credentials context.
+ * @param cred credentials context
+ * @retval The username set on this context.
+ * @note Return value will never be NULL except by programmer error.
+ */
+const char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx)
+{
+ if (cred->machine_account_pending) {
+ cli_credentials_set_machine_account(cred);
+ }
+
+ if (cred->principal_obtained == CRED_CALLBACK) {
+ cred->principal = cred->principal_cb(cred);
+ cred->principal_obtained = CRED_SPECIFIED;
+ }
+
+ if (cred->principal_obtained < cred->username_obtained) {
+ return talloc_asprintf(mem_ctx, "%s@%s",
+ cli_credentials_get_username(cred, mem_ctx),
+ cli_credentials_get_realm(cred));
+ }
+ return talloc_reference(mem_ctx, cred->principal);
+}
+
+BOOL cli_credentials_set_principal(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+{
+ if (obtained >= cred->principal_obtained) {
+ cred->principal = talloc_strdup(cred, val);
+ cred->principal_obtained = obtained;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_set_principal_callback(struct cli_credentials *cred,
+ const char *(*principal_cb) (struct cli_credentials *))
+{
+ if (cred->principal_obtained < CRED_CALLBACK) {
+ cred->principal_cb = principal_cb;
+ cred->principal_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+BOOL cli_credentials_authentication_requested(struct cli_credentials *cred)
+{
+ if (cred->principal_obtained >= CRED_SPECIFIED) {
+ return True;
+ }
+ if (cred->username_obtained >= CRED_SPECIFIED) {
+ return True;
+ }
+ return False;
+}
+
/**
* Obtain the password for this credentials context.
* @param cred credentials context
return cred->password;
}
-BOOL cli_credentials_set_password(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+BOOL cli_credentials_set_password(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
{
if (obtained >= cred->password_obtained) {
cred->password = talloc_strdup(cred, val);
cred->password_obtained = obtained;
+
+ cred->nt_hash = NULL;
return True;
}
return False;
}
+BOOL cli_credentials_set_password_callback(struct cli_credentials *cred,
+ const char *(*password_cb) (struct cli_credentials *))
+{
+ if (cred->password_obtained < CRED_CALLBACK) {
+ cred->password_cb = password_cb;
+ cred->password_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
+/**
+ * Obtain the password for this credentials context.
+ * @param cred credentials context
+ * @retval If set, the cleartext password, otherwise NULL
+ */
+const struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
+ TALLOC_CTX *mem_ctx)
+{
+ const char *password = cli_credentials_get_password(cred);
+
+ if (password) {
+ struct samr_Password *nt_hash = talloc(mem_ctx, struct samr_Password);
+ if (!nt_hash) {
+ return NULL;
+ }
+
+ E_md4hash(password, nt_hash->hash);
+
+ return nt_hash;
+ } else {
+ return cred->nt_hash;
+ }
+}
+
+BOOL cli_credentials_set_nt_hash(struct cli_credentials *cred,
+ const struct samr_Password *nt_hash,
+ enum credentials_obtained obtained)
+{
+ if (obtained >= cred->password_obtained) {
+ cli_credentials_set_password(cred, NULL, obtained);
+ cred->nt_hash = talloc(cred, struct samr_Password);
+ *cred->nt_hash = *nt_hash;
+ return True;
+ }
+
+ return False;
+}
+
+int cli_credentials_set_from_ccache(struct cli_credentials *cred,
+ enum credentials_obtained obtained)
+{
+
+ krb5_principal princ;
+ krb5_error_code ret;
+ char *name;
+ char **realm;
+
+ ret = krb5_cc_get_principal(cred->ccache->smb_krb5_context->krb5_context,
+ cred->ccache->ccache, &princ);
+
+ if (ret) {
+ char *err_mess = smb_get_krb5_error_message(cred->ccache->smb_krb5_context->krb5_context, ret, cred);
+ DEBUG(1,("failed to get principal from ccache: %s\n",
+ err_mess));
+ talloc_free(err_mess);
+ return ret;
+ }
+
+ ret = krb5_unparse_name(cred->ccache->smb_krb5_context->krb5_context, princ, &name);
+ if (ret) {
+ char *err_mess = smb_get_krb5_error_message(cred->ccache->smb_krb5_context->krb5_context, ret, cred);
+ DEBUG(1,("failed to unparse principal from ccache: %s\n",
+ err_mess));
+ talloc_free(err_mess);
+ return ret;
+ }
+
+ realm = krb5_princ_realm(cred->ccache->smb_krb5_context->krb5_context, princ);
+
+ cli_credentials_set_realm(cred, *realm, obtained);
+ cli_credentials_set_principal(cred, name, obtained);
+
+ free(name);
+
+ krb5_free_principal(cred->ccache->smb_krb5_context->krb5_context, princ);
+
+ cred->ccache_obtained = obtained;
+
+ return 0;
+}
+
+
+static int free_mccache(void *ptr) {
+ struct ccache_container *ccc = ptr;
+ krb5_cc_destroy(ccc->smb_krb5_context->krb5_context, ccc->ccache);
+
+ return 0;
+}
+
+static int free_dccache(void *ptr) {
+ struct ccache_container *ccc = ptr;
+ krb5_cc_close(ccc->smb_krb5_context->krb5_context, ccc->ccache);
+
+ return 0;
+}
+
+static int cli_credentials_set_ccache(struct cli_credentials *cred,
+ const char *name,
+ enum credentials_obtained obtained)
+{
+ krb5_error_code ret;
+ krb5_principal princ;
+ struct ccache_container *ccc = talloc(cred, struct ccache_container);
+ if (!ccc) {
+ return ENOMEM;
+ }
+
+ ret = smb_krb5_init_context(ccc, &ccc->smb_krb5_context);
+ if (ret) {
+ talloc_free(ccc);
+ return ret;
+ }
+ if (name) {
+ ret = krb5_cc_resolve(ccc->smb_krb5_context->krb5_context, name, &ccc->ccache);
+ if (ret) {
+ DEBUG(1,("failed to read krb5 ccache: %s: %s\n",
+ name,
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+ } else {
+ ret = krb5_cc_default(ccc->smb_krb5_context->krb5_context, &ccc->ccache);
+ if (ret) {
+ DEBUG(1,("failed to read default krb5 ccache: %s\n",
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+ }
+
+ talloc_set_destructor(ccc, free_dccache);
+
+ ret = krb5_cc_get_principal(ccc->smb_krb5_context->krb5_context, ccc->ccache, &princ);
+
+ if (ret) {
+ DEBUG(1,("failed to get principal from default ccache: %s\n",
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccc);
+ return ret;
+ }
+
+ krb5_free_principal(ccc->smb_krb5_context->krb5_context, princ);
+
+ cred->ccache = ccc;
+ talloc_steal(cred, ccc);
+
+ ret = cli_credentials_set_from_ccache(cred, obtained);
+
+ if (ret) {
+ return ret;
+ }
+
+ return 0;
+}
+
+
+int cli_credentials_new_ccache(struct cli_credentials *cred)
+{
+ krb5_error_code ret;
+ char *rand_string;
+ struct ccache_container *ccc = talloc(cred, struct ccache_container);
+ char *ccache_name;
+ if (!ccc) {
+ return ENOMEM;
+ }
+
+ rand_string = generate_random_str(NULL, 16);
+ if (!rand_string) {
+ talloc_free(ccc);
+ return ENOMEM;
+ }
+
+ ccache_name = talloc_asprintf(ccc, "MEMORY:%s",
+ rand_string);
+ talloc_free(rand_string);
+
+ if (!ccache_name) {
+ talloc_free(ccc);
+ return ENOMEM;
+ }
+
+ ret = smb_krb5_init_context(ccc, &ccc->smb_krb5_context);
+ if (ret) {
+ talloc_free(ccache_name);
+ talloc_free(ccc);
+ return ret;
+ }
+
+ ret = krb5_cc_resolve(ccc->smb_krb5_context->krb5_context, ccache_name, &ccc->ccache);
+ if (ret) {
+ DEBUG(1,("failed to generate a new krb5 ccache (%s): %s\n",
+ ccache_name,
+ smb_get_krb5_error_message(ccc->smb_krb5_context->krb5_context, ret, ccc)));
+ talloc_free(ccache_name);
+ talloc_free(ccc);
+ return ret;
+ }
+
+ talloc_set_destructor(ccc, free_mccache);
+
+ cred->ccache = ccc;
+ talloc_steal(cred, ccc);
+ talloc_free(ccache_name);
+
+ return ret;
+}
+
+int cli_credentials_get_ccache(struct cli_credentials *cred,
+ struct ccache_container **ccc)
+{
+ krb5_error_code ret;
+
+ if (cred->ccache_obtained >= (MAX(cred->principal_obtained,
+ cred->username_obtained))) {
+ *ccc = cred->ccache;
+ return 0;
+ }
+ if (cli_credentials_is_anonymous(cred)) {
+ return EINVAL;
+ }
+
+ ret = cli_credentials_new_ccache(cred);
+ if (ret) {
+ return ret;
+ }
+ ret = kinit_to_ccache(cred, cred, cred->ccache->smb_krb5_context, cred->ccache->ccache);
+ if (ret) {
+ return ret;
+ }
+ ret = cli_credentials_set_from_ccache(cred, cred->principal_obtained);
+
+ if (ret) {
+ return ret;
+ }
+ *ccc = cred->ccache;
+ return ret;
+}
+
+
/**
* Obtain the 'short' or 'NetBIOS' domain for this credentials context.
* @param cred credentials context
cli_credentials_set_machine_account(cred);
}
+ /* If we have a principal set on this, we want to login with "" domain and user@realm */
+ if (cred->domain_obtained < cred->principal_obtained) {
+ return "";
+ }
+
if (cred->domain_obtained == CRED_CALLBACK) {
cred->domain = cred->domain_cb(cred);
cred->domain_obtained = CRED_SPECIFIED;
}
-BOOL cli_credentials_set_domain(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+BOOL cli_credentials_set_domain(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
{
if (obtained >= cred->domain_obtained) {
cred->domain = talloc_strdup(cred, val);
return False;
}
+BOOL cli_credentials_set_domain_callback(struct cli_credentials *cred,
+ const char *(*domain_cb) (struct cli_credentials *))
+{
+ if (cred->domain_obtained < CRED_CALLBACK) {
+ cred->domain_cb = domain_cb;
+ cred->domain_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
/**
* Obtain the Kerberos realm for this credentials context.
* @param cred credentials context
}
/**
- * Obtain the user's Kerberos principal for this credentials context.
- * @param cred credentials context
- * @param mem_ctx A talloc context to return the prinipal name on.
- * @retval The user's Kerberos principal
- * @note Return value may be NULL due to out-of memeory or invalid mem_ctx
+ * Set the realm for this credentials context, and force it to
+ * uppercase for the sainity of our local kerberos libraries
*/
-char *cli_credentials_get_principal(struct cli_credentials *cred,
- TALLOC_CTX *mem_ctx)
+BOOL cli_credentials_set_realm(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
{
- return talloc_asprintf(mem_ctx, "%s@%s",
- cli_credentials_get_username(cred),
- cli_credentials_get_realm(cred));
+ if (obtained >= cred->realm_obtained) {
+ cred->realm = strupper_talloc(cred, val);
+ cred->realm_obtained = obtained;
+ return True;
+ }
+
+ return False;
}
-BOOL cli_credentials_set_realm(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+BOOL cli_credentials_set_realm_callback(struct cli_credentials *cred,
+ const char *(*realm_cb) (struct cli_credentials *))
{
- if (obtained >= cred->realm_obtained) {
- cred->realm = talloc_strdup(cred, val);
- cred->realm_obtained = obtained;
+ if (cred->realm_obtained < CRED_CALLBACK) {
+ cred->realm_cb = realm_cb;
+ cred->realm_obtained = CRED_CALLBACK;
return True;
}
return cred->workstation;
}
-BOOL cli_credentials_set_workstation(struct cli_credentials *cred, const char *val, enum credentials_obtained obtained)
+BOOL cli_credentials_set_workstation(struct cli_credentials *cred,
+ const char *val,
+ enum credentials_obtained obtained)
{
if (obtained >= cred->workstation_obtained) {
cred->workstation = talloc_strdup(cred, val);
return False;
}
+BOOL cli_credentials_set_workstation_callback(struct cli_credentials *cred,
+ const char *(*workstation_cb) (struct cli_credentials *))
+{
+ if (cred->workstation_obtained < CRED_CALLBACK) {
+ cred->workstation_cb = workstation_cb;
+ cred->workstation_obtained = CRED_CALLBACK;
+ return True;
+ }
+
+ return False;
+}
+
/**
* Read a file descriptor, and parse it for a password (eg from a file or stdin)
*
* @param obtained This enum describes how 'specified' this password is
*/
-BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials, int fd, enum credentials_obtained obtained)
+BOOL cli_credentials_parse_password_fd(struct cli_credentials *credentials,
+ int fd, enum credentials_obtained obtained)
{
char *p;
char pass[128];
}
if ((p = strchr_m(uname,'@'))) {
+ cli_credentials_set_principal(credentials, uname, obtained);
*p = 0;
cli_credentials_set_realm(credentials, p+1, obtained);
+ return;
} else if ((p = strchr_m(uname,'\\')) || (p = strchr_m(uname, '/'))) {
*p = 0;
cli_credentials_set_domain(credentials, uname, obtained);
*/
void cli_credentials_set_conf(struct cli_credentials *cred)
{
- cli_credentials_set_domain(cred, lp_workgroup(), CRED_GUESSED);
- cli_credentials_set_workstation(cred, lp_netbios_name(), CRED_GUESSED);
- cli_credentials_set_realm(cred, lp_realm(), CRED_GUESSED);
+ cli_credentials_set_username(cred, "", CRED_UNINITIALISED);
+ cli_credentials_set_domain(cred, lp_workgroup(), CRED_UNINITIALISED);
+ cli_credentials_set_workstation(cred, lp_netbios_name(), CRED_UNINITIALISED);
+ cli_credentials_set_realm(cred, lp_realm(), CRED_UNINITIALISED);
}
/**
{
char *p;
- cli_credentials_set_username(cred, "", CRED_GUESSED);
cli_credentials_set_conf(cred);
if (getenv("LOGNAME")) {
- cli_credentials_set_username(cred, getenv("LOGNAME"), CRED_GUESSED);
+ cli_credentials_set_username(cred, getenv("LOGNAME"), CRED_GUESS_ENV);
}
if (getenv("USER")) {
- cli_credentials_parse_string(cred, getenv("USER"), CRED_GUESSED);
+ cli_credentials_parse_string(cred, getenv("USER"), CRED_GUESS_ENV);
if ((p = strchr_m(getenv("USER"),'%'))) {
memset(p,0,strlen(cred->password));
}
}
if (getenv("DOMAIN")) {
- cli_credentials_set_domain(cred, getenv("DOMAIN"), CRED_GUESSED);
+ cli_credentials_set_domain(cred, getenv("DOMAIN"), CRED_GUESS_ENV);
}
if (getenv("PASSWD")) {
- cli_credentials_set_password(cred, getenv("PASSWD"), CRED_GUESSED);
+ cli_credentials_set_password(cred, getenv("PASSWD"), CRED_GUESS_ENV);
}
if (getenv("PASSWD_FD")) {
- cli_credentials_parse_password_fd(cred, atoi(getenv("PASSWD_FD")), CRED_GUESSED);
+ cli_credentials_parse_password_fd(cred, atoi(getenv("PASSWD_FD")), CRED_GUESS_FILE);
}
if (getenv("PASSWD_FILE")) {
- cli_credentials_parse_password_file(cred, getenv("PASSWD_FILE"), CRED_GUESSED);
+ cli_credentials_parse_password_file(cred, getenv("PASSWD_FILE"), CRED_GUESS_FILE);
}
+
+ cli_credentials_set_ccache(cred, NULL, CRED_GUESS_FILE);
}
/**
struct ldb_context *ldb;
int ldb_ret;
struct ldb_message **msgs;
- const char *base_dn = SECRETS_PRIMARY_DOMAIN_DN;
const char *attrs[] = {
"secret",
"samAccountName",
"flatname",
"realm",
+ "secureChannelType",
+ "ntPwdHash",
+ "msDS-KeyVersionNumber",
NULL
};
const char *password;
const char *domain;
const char *realm;
+ enum netr_SchannelType sct;
/* ok, we are going to get it now, don't recurse back here */
cred->machine_account_pending = False;
/* search for the secret record */
ldb_ret = gendb_search(ldb,
- mem_ctx, base_dn, &msgs, attrs,
+ mem_ctx, ldb_dn_explode(mem_ctx, SECRETS_PRIMARY_DOMAIN_DN),
+ &msgs, attrs,
SECRETS_PRIMARY_DOMAIN_FILTER,
cli_credentials_get_domain(cred));
if (ldb_ret == 0) {
}
password = ldb_msg_find_string(msgs[0], "secret", NULL);
- if (!password) {
- DEBUG(1, ("Could not find 'secret' in join record to domain: %s\n",
- cli_credentials_get_domain(cred)));
- talloc_free(mem_ctx);
- return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
- }
-
+
machine_account = ldb_msg_find_string(msgs[0], "samAccountName", NULL);
+
if (!machine_account) {
DEBUG(1, ("Could not find 'samAccountName' in join record to domain: %s\n",
cli_credentials_get_domain(cred)));
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
+ sct = ldb_msg_find_int(msgs[0], "secureChannelType", 0);
+ if (!sct) {
+ DEBUG(1, ("Domain join for acocunt %s did not have a secureChannelType set!\n",
+ machine_account));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ if (!password) {
+ const struct ldb_val *nt_password_hash = ldb_msg_find_ldb_val(msgs[0], "ntPwdHash");
+ struct samr_Password hash;
+ ZERO_STRUCT(hash);
+ if (nt_password_hash) {
+ memcpy(hash.hash, nt_password_hash->data,
+ MIN(nt_password_hash->length, sizeof(hash.hash)));
+
+ cli_credentials_set_nt_hash(cred, &hash, CRED_SPECIFIED);
+ } else {
+
+ DEBUG(1, ("Could not find 'secret' in join record to domain: %s\n",
+ cli_credentials_get_domain(cred)));
+ talloc_free(mem_ctx);
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+ }
+
+ cli_credentials_set_secure_channel_type(cred, sct);
+
domain = ldb_msg_find_string(msgs[0], "flatname", NULL);
if (domain) {
cli_credentials_set_domain(cred, domain, CRED_SPECIFIED);
if (realm) {
cli_credentials_set_realm(cred, realm, CRED_SPECIFIED);
}
-
+
cli_credentials_set_username(cred, machine_account, CRED_SPECIFIED);
- cli_credentials_set_password(cred, password, CRED_SPECIFIED);
+ if (password) {
+ cli_credentials_set_password(cred, password, CRED_SPECIFIED);
+ }
+
+ cli_credentials_set_kvno(cred, ldb_msg_find_int(msgs[0], "msDS-KeyVersionNumber", 0));
+
talloc_free(mem_ctx);
return NT_STATUS_OK;
return cred->netlogon_creds;
}
+/**
+ * Set NETLOGON secure channel type
+ */
+
+void cli_credentials_set_secure_channel_type(struct cli_credentials *cred,
+ enum netr_SchannelType secure_channel_type)
+{
+ cred->secure_channel_type = secure_channel_type;
+}
+
+/**
+ * Return NETLOGON secure chanel type
+ */
+
+enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred)
+{
+ return cred->secure_channel_type;
+}
+
+/**
+ * Set Kerberos KVNO
+ */
+
+void cli_credentials_set_kvno(struct cli_credentials *cred,
+ int kvno)
+{
+ cred->kvno = kvno;
+}
+
+/**
+ * Return Kerberos KVNO
+ */
+
+int cli_credentials_get_kvno(struct cli_credentials *cred)
+{
+ return cred->kvno;
+}
+
/**
* Fill in a credentials structure as the anonymous user
*/
BOOL cli_credentials_is_anonymous(struct cli_credentials *cred)
{
- const char *username = cli_credentials_get_username(cred);
-
+ TALLOC_CTX *tmp_ctx = talloc_new(cred);
+ const char *username = cli_credentials_get_username(cred, tmp_ctx);
+
/* Yes, it is deliberate that we die if we have a NULL pointer
* here - anonymous is "", not NULL, which is 'never specified,
* never guessed', ie programmer bug */
- if (!username[0])
+ if (!username[0]) {
+ talloc_free(tmp_ctx);
return True;
-
+ }
+
+ talloc_free(tmp_ctx);
return False;
}
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