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mirror of https://github.com/samba-team/samba.git synced 2024-12-22 13:34:15 +03:00
samba-mirror/auth/credentials/credentials.c
Stefan Metzmacher 730dcc6dec auth/credentials: remove unused netlogon_creds_session_encrypt()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
2024-10-30 23:08:36 +00:00

1999 lines
52 KiB
C

/*
Unix SMB/CIFS implementation.
User credentials handling
Copyright (C) Jelmer Vernooij 2005
Copyright (C) Tim Potter 2001
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "lib/util/util_file.h"
#include "librpc/gen_ndr/samr.h" /* for struct samrPassword */
#include "auth/credentials/credentials.h"
#include "auth/credentials/credentials_internal.h"
#include "auth/gensec/gensec.h"
#include "libcli/auth/libcli_auth.h"
#include "tevent.h"
#include "param/param.h"
#include "system/filesys.h"
#include "system/passwd.h"
/**
* Create a new credentials structure
* @param mem_ctx TALLOC_CTX parent for credentials structure
*/
_PUBLIC_ struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx)
{
struct cli_credentials *cred = talloc_zero(mem_ctx, struct cli_credentials);
if (cred == NULL) {
return cred;
}
cred->winbind_separator = '\\';
cred->kerberos_state = CRED_USE_KERBEROS_DESIRED;
cred->signing_state = SMB_SIGNING_DEFAULT;
/*
* The default value of lpcfg_client_ipc_signing() is REQUIRED, so use
* the same value here.
*/
cred->ipc_signing_state = SMB_SIGNING_REQUIRED;
cred->encryption_state = SMB_ENCRYPTION_DEFAULT;
return cred;
}
_PUBLIC_
struct cli_credentials *cli_credentials_init_server(TALLOC_CTX *mem_ctx,
struct loadparm_context *lp_ctx)
{
struct cli_credentials *server_creds = NULL;
NTSTATUS status;
bool ok;
server_creds = cli_credentials_init(mem_ctx);
if (server_creds == NULL) {
return NULL;
}
ok = cli_credentials_set_conf(server_creds, lp_ctx);
if (!ok) {
TALLOC_FREE(server_creds);
return NULL;
}
status = cli_credentials_set_machine_account(server_creds, lp_ctx);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to obtain server credentials: %s\n",
nt_errstr(status)));
TALLOC_FREE(server_creds);
return NULL;
}
return server_creds;
}
_PUBLIC_ void cli_credentials_set_callback_data(struct cli_credentials *cred,
void *callback_data)
{
cred->priv_data = callback_data;
}
_PUBLIC_ void *_cli_credentials_callback_data(struct cli_credentials *cred)
{
return cred->priv_data;
}
/**
* Create a new anonymous credential
* @param mem_ctx TALLOC_CTX parent for credentials structure
*/
_PUBLIC_ struct cli_credentials *cli_credentials_init_anon(TALLOC_CTX *mem_ctx)
{
struct cli_credentials *anon_credentials;
anon_credentials = cli_credentials_init(mem_ctx);
cli_credentials_set_anonymous(anon_credentials);
return anon_credentials;
}
_PUBLIC_ bool cli_credentials_set_kerberos_state(struct cli_credentials *creds,
enum credentials_use_kerberos kerberos_state,
enum credentials_obtained obtained)
{
if (obtained >= creds->kerberos_state_obtained) {
creds->kerberos_state = kerberos_state;
creds->kerberos_state_obtained = obtained;
return true;
}
return false;
}
_PUBLIC_ void cli_credentials_set_forced_sasl_mech(struct cli_credentials *creds,
const char *sasl_mech)
{
TALLOC_FREE(creds->forced_sasl_mech);
creds->forced_sasl_mech = talloc_strdup(creds, sasl_mech);
}
_PUBLIC_ void cli_credentials_set_krb_forwardable(struct cli_credentials *creds,
enum credentials_krb_forwardable krb_forwardable)
{
creds->krb_forwardable = krb_forwardable;
}
_PUBLIC_ enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds)
{
return creds->kerberos_state;
}
_PUBLIC_ enum credentials_obtained cli_credentials_get_kerberos_state_obtained(struct cli_credentials *creds)
{
return creds->kerberos_state_obtained;
}
_PUBLIC_ const char *cli_credentials_get_forced_sasl_mech(struct cli_credentials *creds)
{
return creds->forced_sasl_mech;
}
_PUBLIC_ enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds)
{
return creds->krb_forwardable;
}
_PUBLIC_ bool cli_credentials_set_gensec_features(struct cli_credentials *creds,
uint32_t gensec_features,
enum credentials_obtained obtained)
{
if (obtained >= creds->gensec_features_obtained) {
creds->gensec_features_obtained = obtained;
creds->gensec_features = gensec_features;
return true;
}
return false;
}
_PUBLIC_ bool cli_credentials_add_gensec_features(
struct cli_credentials *creds,
uint32_t gensec_features,
enum credentials_obtained obtained)
{
return cli_credentials_set_gensec_features(
creds, creds->gensec_features | gensec_features, obtained);
}
_PUBLIC_ uint32_t cli_credentials_get_gensec_features(struct cli_credentials *creds)
{
return creds->gensec_features;
}
/**
* @brief Find out how the username was obtained.
*
* @param cred A credentials context.
*
* @return The obtained information for the username.
*/
_PUBLIC_ enum credentials_obtained
cli_credentials_get_username_obtained(struct cli_credentials *cred)
{
return cred->username_obtained;
}
/**
* Obtain the username 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.
*/
_PUBLIC_ const char *cli_credentials_get_username(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->username_obtained == CRED_CALLBACK &&
!cred->callback_running) {
cred->callback_running = true;
cred->username = cred->username_cb(cred);
cred->callback_running = false;
if (cred->username_obtained == CRED_CALLBACK) {
cred->username_obtained = CRED_CALLBACK_RESULT;
cli_credentials_invalidate_ccache(cred, cred->username_obtained);
}
}
return cred->username;
}
/**
* @brief Obtain the username for this credentials context.
*
* @param[in] cred The credential context.
*
* @param[in] obtained A pointer to store the obtained information.
*
* return The user name or NULL if an error occurred.
*/
_PUBLIC_ const char *
cli_credentials_get_username_and_obtained(struct cli_credentials *cred,
enum credentials_obtained *obtained)
{
if (obtained != NULL) {
*obtained = cred->username_obtained;
}
return cli_credentials_get_username(cred);
}
_PUBLIC_ 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);
cred->username_obtained = obtained;
cli_credentials_invalidate_ccache(cred, cred->username_obtained);
return true;
}
return false;
}
_PUBLIC_ 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;
}
_PUBLIC_ bool cli_credentials_set_bind_dn(struct cli_credentials *cred,
const char *bind_dn)
{
cred->bind_dn = talloc_strdup(cred, bind_dn);
return true;
}
/**
* Obtain the BIND DN for this credentials context.
* @param cred credentials context
* @retval The username set on this context.
* @note Return value will be NULL if not specified explicitly
*/
_PUBLIC_ const char *cli_credentials_get_bind_dn(struct cli_credentials *cred)
{
return cred->bind_dn;
}
/**
* @brief Find out how the principal was obtained.
*
* @param cred A credentials context.
*
* @return The obtained information for the principal.
*/
_PUBLIC_ enum credentials_obtained
cli_credentials_get_principal_obtained(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->principal_obtained < cred->username_obtained
|| cred->principal_obtained < MAX(cred->domain_obtained, cred->realm_obtained)) {
const char *effective_username = NULL;
const char *effective_realm = NULL;
enum credentials_obtained effective_obtained;
/*
* We don't want to trigger a callbacks in
* cli_credentials_get_username()
* cli_credentials_get_domain()
* nor
* cli_credentials_get_realm()
*/
effective_username = cred->username;
if (effective_username == NULL || strlen(effective_username) == 0) {
return cred->username_obtained;
}
if (cred->domain_obtained > cred->realm_obtained) {
effective_realm = cred->domain;
effective_obtained = MIN(cred->domain_obtained,
cred->username_obtained);
} else {
effective_realm = cred->realm;
effective_obtained = MIN(cred->realm_obtained,
cred->username_obtained);
}
if (effective_realm == NULL || strlen(effective_realm) == 0) {
effective_realm = cred->domain;
effective_obtained = MIN(cred->domain_obtained,
cred->username_obtained);
}
if (effective_realm != NULL && strlen(effective_realm) != 0) {
return effective_obtained;
}
}
return cred->principal_obtained;
}
/**
* 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.
*/
_PUBLIC_ char *cli_credentials_get_principal_and_obtained(struct cli_credentials *cred, TALLOC_CTX *mem_ctx, enum credentials_obtained *obtained)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->principal_obtained == CRED_CALLBACK &&
!cred->callback_running) {
cred->callback_running = true;
cred->principal = cred->principal_cb(cred);
cred->callback_running = false;
if (cred->principal_obtained == CRED_CALLBACK) {
cred->principal_obtained = CRED_CALLBACK_RESULT;
cli_credentials_invalidate_ccache(cred, cred->principal_obtained);
}
}
if (cred->principal_obtained < cred->username_obtained
|| cred->principal_obtained < MAX(cred->domain_obtained, cred->realm_obtained)) {
const char *effective_username = NULL;
const char *effective_realm = NULL;
enum credentials_obtained effective_obtained;
effective_username = cli_credentials_get_username(cred);
if (effective_username == NULL || strlen(effective_username) == 0) {
*obtained = cred->username_obtained;
return NULL;
}
if (cred->domain_obtained > cred->realm_obtained) {
effective_realm = cli_credentials_get_domain(cred);
effective_obtained = MIN(cred->domain_obtained,
cred->username_obtained);
} else {
effective_realm = cli_credentials_get_realm(cred);
effective_obtained = MIN(cred->realm_obtained,
cred->username_obtained);
}
if (effective_realm == NULL || strlen(effective_realm) == 0) {
effective_realm = cli_credentials_get_domain(cred);
effective_obtained = MIN(cred->domain_obtained,
cred->username_obtained);
}
if (effective_realm != NULL && strlen(effective_realm) != 0) {
*obtained = effective_obtained;
return talloc_asprintf(mem_ctx, "%s@%s",
effective_username,
effective_realm);
}
}
*obtained = cred->principal_obtained;
return talloc_strdup(mem_ctx, cred->principal);
}
/**
* 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.
*/
_PUBLIC_ char *cli_credentials_get_principal(struct cli_credentials *cred, TALLOC_CTX *mem_ctx)
{
enum credentials_obtained obtained;
return cli_credentials_get_principal_and_obtained(cred, mem_ctx, &obtained);
}
_PUBLIC_ 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);
if (cred->principal == NULL) {
return false;
}
cred->principal_obtained = obtained;
cli_credentials_invalidate_ccache(cred, cred->principal_obtained);
return true;
}
return false;
}
/* Set a callback to get the principal. This could be a popup dialog,
* a terminal prompt or similar. */
_PUBLIC_ 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;
}
/* Some of our tools are 'anonymous by default'. This is a single
* function to determine if authentication has been explicitly
* requested */
_PUBLIC_ bool cli_credentials_authentication_requested(struct cli_credentials *cred)
{
uint32_t gensec_features = 0;
if (cred->bind_dn) {
return true;
}
/*
* If we forced the mech we clearly want authentication. E.g. to use
* SASL/EXTERNAL which has no credentials.
*/
if (cred->forced_sasl_mech) {
return true;
}
if (cli_credentials_is_anonymous(cred)){
return false;
}
if (cred->principal_obtained >= CRED_SPECIFIED) {
return true;
}
if (cred->username_obtained >= CRED_SPECIFIED) {
return true;
}
if (cli_credentials_get_kerberos_state(cred) == CRED_USE_KERBEROS_REQUIRED) {
return true;
}
gensec_features = cli_credentials_get_gensec_features(cred);
if (gensec_features & GENSEC_FEATURE_NTLM_CCACHE) {
return true;
}
if (gensec_features & GENSEC_FEATURE_SIGN) {
return true;
}
if (gensec_features & GENSEC_FEATURE_SEAL) {
return true;
}
return false;
}
/**
* Obtain the password for this credentials context.
* @param cred credentials context
* @retval If set, the cleartext password, otherwise NULL
*/
_PUBLIC_ const char *cli_credentials_get_password(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->password_obtained == CRED_CALLBACK &&
!cred->callback_running &&
!cred->password_will_be_nt_hash) {
cred->callback_running = true;
cred->password = cred->password_cb(cred);
cred->callback_running = false;
if (cred->password_obtained == CRED_CALLBACK) {
cred->password_obtained = CRED_CALLBACK_RESULT;
cli_credentials_invalidate_ccache(cred, cred->password_obtained);
}
}
return cred->password;
}
/**
* @brief Find out how the password was obtained.
*
* @param cred A credentials context.
*
* @return The obtained information for the password.
*/
_PUBLIC_ enum credentials_obtained
cli_credentials_get_password_obtained(struct cli_credentials *cred)
{
return cred->password_obtained;
}
/**
* @brief Obtain the password for this credentials context.
*
* @param[in] cred The credential context.
*
* @param[in] obtained A pointer to store the obtained information.
*
* return The user name or NULL if an error occurred.
*/
_PUBLIC_ const char *
cli_credentials_get_password_and_obtained(struct cli_credentials *cred,
enum credentials_obtained *obtained)
{
const char *password = cli_credentials_get_password(cred);
if (obtained != NULL) {
*obtained = cred->password_obtained;
}
return password;
}
/* Set a password on the credentials context, including an indication
* of 'how' the password was obtained */
_PUBLIC_ bool cli_credentials_set_password(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained)
{
if (obtained >= cred->password_obtained) {
cred->lm_response = data_blob_null;
cred->nt_response = data_blob_null;
cred->nt_hash = NULL;
cred->password = NULL;
cli_credentials_invalidate_ccache(cred, obtained);
cred->password_tries = 0;
if (val == NULL) {
cred->password_obtained = obtained;
return true;
}
if (cred->password_will_be_nt_hash) {
struct samr_Password *nt_hash = NULL;
size_t val_len = strlen(val);
size_t converted;
nt_hash = talloc(cred, struct samr_Password);
if (nt_hash == NULL) {
return false;
}
talloc_keep_secret(nt_hash);
converted = strhex_to_str((char *)nt_hash->hash,
sizeof(nt_hash->hash),
val, val_len);
if (converted != sizeof(nt_hash->hash)) {
TALLOC_FREE(nt_hash);
return false;
}
cred->nt_hash = nt_hash;
cred->password_obtained = obtained;
return true;
}
cred->password = talloc_strdup(cred, val);
if (cred->password == NULL) {
return false;
}
/* Don't print the actual password in talloc memory dumps */
talloc_set_name_const(cred->password,
"password set via cli_credentials_set_password");
cred->password_obtained = obtained;
return true;
}
return false;
}
_PUBLIC_ 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_tries = 3;
cred->password_cb = password_cb;
cred->password_obtained = CRED_CALLBACK;
cli_credentials_invalidate_ccache(cred, cred->password_obtained);
return true;
}
return false;
}
/**
* Obtain the 'old' password for this credentials context (used for join accounts).
* @param cred credentials context
* @retval If set, the cleartext password, otherwise NULL
*/
_PUBLIC_ const char *cli_credentials_get_old_password(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
return cred->old_password;
}
_PUBLIC_ bool cli_credentials_set_old_password(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained)
{
cred->old_password = talloc_strdup(cred, val);
if (cred->old_password) {
/* Don't print the actual password in talloc memory dumps */
talloc_set_name_const(cred->old_password, "password set via cli_credentials_set_old_password");
}
cred->old_nt_hash = NULL;
return true;
}
/**
* Obtain the password, in the form MD4(unicode(password)) for this credentials context.
*
* Sometimes we only have this much of the password, while the rest of
* the time this call avoids calling E_md4hash themselves.
*
* @param cred credentials context
* @retval If set, the cleartext password, otherwise NULL
*/
_PUBLIC_ struct samr_Password *cli_credentials_get_nt_hash(struct cli_credentials *cred,
TALLOC_CTX *mem_ctx)
{
enum credentials_obtained password_obtained;
enum credentials_obtained ccache_threshold;
enum credentials_obtained client_gss_creds_threshold;
bool password_is_nt_hash;
const char *password = NULL;
struct samr_Password *nt_hash = NULL;
if (cred->nt_hash != NULL) {
/*
* If we already have a hash it's easy.
*/
goto return_hash;
}
/*
* This is a bit tricky, with password_will_be_nt_hash
* we still need to get the value via the password_callback
* but if we did that we should not remember it's state
* in the long run so we need to undo it.
*/
password_obtained = cred->password_obtained;
ccache_threshold = cred->ccache_threshold;
client_gss_creds_threshold = cred->client_gss_creds_threshold;
password_is_nt_hash = cred->password_will_be_nt_hash;
cred->password_will_be_nt_hash = false;
password = cli_credentials_get_password(cred);
cred->password_will_be_nt_hash = password_is_nt_hash;
if (password_is_nt_hash && password_obtained == CRED_CALLBACK) {
/*
* We got the nt_hash as string via the callback,
* so we need to undo the state change.
*
* And also don't remember it as plaintext password.
*/
cred->client_gss_creds_threshold = client_gss_creds_threshold;
cred->ccache_threshold = ccache_threshold;
cred->password_obtained = password_obtained;
cred->password = NULL;
}
if (password == NULL) {
return NULL;
}
nt_hash = talloc(cred, struct samr_Password);
if (nt_hash == NULL) {
return NULL;
}
talloc_keep_secret(nt_hash);
if (password_is_nt_hash) {
size_t password_len = strlen(password);
size_t converted;
converted = strhex_to_str((char *)nt_hash->hash,
sizeof(nt_hash->hash),
password, password_len);
if (converted != sizeof(nt_hash->hash)) {
TALLOC_FREE(nt_hash);
return NULL;
}
} else {
E_md4hash(password, nt_hash->hash);
}
cred->nt_hash = nt_hash;
nt_hash = NULL;
return_hash:
nt_hash = talloc(mem_ctx, struct samr_Password);
if (nt_hash == NULL) {
return NULL;
}
talloc_keep_secret(nt_hash);
*nt_hash = *cred->nt_hash;
return nt_hash;
}
/**
* Obtain the old password, in the form MD4(unicode(password)) for this credentials context.
*
* Sometimes we only have this much of the password, while the rest of
* the time this call avoids calling E_md4hash themselves.
*
* @param cred credentials context
* @retval If set, the cleartext password, otherwise NULL
*/
_PUBLIC_ struct samr_Password *cli_credentials_get_old_nt_hash(struct cli_credentials *cred,
TALLOC_CTX *mem_ctx)
{
const char *old_password = NULL;
if (cred->old_nt_hash != NULL) {
struct samr_Password *nt_hash = talloc(mem_ctx, struct samr_Password);
if (!nt_hash) {
return NULL;
}
talloc_keep_secret(nt_hash);
*nt_hash = *cred->old_nt_hash;
return nt_hash;
}
old_password = cli_credentials_get_old_password(cred);
if (old_password) {
struct samr_Password *nt_hash = talloc(mem_ctx, struct samr_Password);
if (!nt_hash) {
return NULL;
}
talloc_keep_secret(nt_hash);
E_md4hash(old_password, nt_hash->hash);
return nt_hash;
}
return NULL;
}
/**
* Obtain the 'short' or 'NetBIOS' domain for this credentials context.
* @param cred credentials context
* @retval The domain set on this context.
* @note Return value will never be NULL except by programmer error.
*/
_PUBLIC_ const char *cli_credentials_get_domain(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->domain_obtained == CRED_CALLBACK &&
!cred->callback_running) {
cred->callback_running = true;
cred->domain = cred->domain_cb(cred);
cred->callback_running = false;
if (cred->domain_obtained == CRED_CALLBACK) {
cred->domain_obtained = CRED_CALLBACK_RESULT;
cli_credentials_invalidate_ccache(cred, cred->domain_obtained);
}
}
return cred->domain;
}
/**
* @brief Obtain the domain for this credential context.
*
* @param[in] cred The credential context.
*
* @param[out] obtained A pointer to store the obtained information.
*
* @return The domain name or NULL if an error occurred.
*/
_PUBLIC_ const char *cli_credentials_get_domain_and_obtained(
struct cli_credentials *cred,
enum credentials_obtained *obtained)
{
const char *domain = cli_credentials_get_domain(cred);
if (obtained != NULL) {
*obtained = cred->domain_obtained;
}
return domain;
}
_PUBLIC_ bool cli_credentials_set_domain(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained)
{
if (obtained >= cred->domain_obtained) {
/* it is important that the domain be in upper case,
* particularly for the sensitive NTLMv2
* calculations */
cred->domain = strupper_talloc(cred, val);
cred->domain_obtained = obtained;
/* setting domain does not mean we have to invalidate ccache
* because domain in not used for Kerberos operations.
* If ccache invalidation is required, one will anyway specify
* a password to kinit, and that will force invalidation of the ccache
*/
return true;
}
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
* @retval The realm set on this context.
* @note Return value will never be NULL except by programmer error.
*/
_PUBLIC_ const char *cli_credentials_get_realm(struct cli_credentials *cred)
{
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
if (cred->realm_obtained == CRED_CALLBACK &&
!cred->callback_running) {
cred->callback_running = true;
cred->realm = cred->realm_cb(cred);
cred->callback_running = false;
if (cred->realm_obtained == CRED_CALLBACK) {
cred->realm_obtained = CRED_CALLBACK_RESULT;
cli_credentials_invalidate_ccache(cred, cred->realm_obtained);
}
}
return cred->realm;
}
/**
* Set the realm for this credentials context, and force it to
* uppercase for the sanity of our local kerberos libraries
*/
_PUBLIC_ bool cli_credentials_set_realm(struct cli_credentials *cred,
const char *val,
enum credentials_obtained obtained)
{
if (obtained >= cred->realm_obtained) {
cred->realm = strupper_talloc(cred, val);
cred->realm_obtained = obtained;
cli_credentials_invalidate_ccache(cred, cred->realm_obtained);
return true;
}
return false;
}
bool cli_credentials_set_realm_callback(struct cli_credentials *cred,
const char *(*realm_cb) (struct cli_credentials *))
{
if (cred->realm_obtained < CRED_CALLBACK) {
cred->realm_cb = realm_cb;
cred->realm_obtained = CRED_CALLBACK;
return true;
}
return false;
}
/**
* Obtain the 'short' or 'NetBIOS' workstation name for this credentials context.
*
* @param cred credentials context
* @retval The workstation name set on this context.
* @note Return value will never be NULL except by programmer error.
*/
_PUBLIC_ const char *cli_credentials_get_workstation(struct cli_credentials *cred)
{
if (cred->workstation_obtained == CRED_CALLBACK &&
!cred->callback_running) {
cred->callback_running = true;
cred->workstation = cred->workstation_cb(cred);
cred->callback_running = false;
if (cred->workstation_obtained == CRED_CALLBACK) {
cred->workstation_obtained = CRED_CALLBACK_RESULT;
}
}
return cred->workstation;
}
_PUBLIC_ 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);
cred->workstation_obtained = obtained;
return true;
}
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;
}
/**
* Given a string, typically obtained from a -U argument, parse it into domain, username, realm and password fields
*
* The format accepted is [domain\\]user[%password] or user[@realm][%password]
*
* @param credentials Credentials structure on which to set the password
* @param data the string containing the username, password etc
* @param obtained This enum describes how 'specified' this password is
*/
_PUBLIC_ void cli_credentials_parse_string(struct cli_credentials *credentials, const char *data, enum credentials_obtained obtained)
{
char *uname, *p;
char *uname_free = NULL;
if (strcmp("%",data) == 0) {
cli_credentials_set_anonymous(credentials);
return;
}
uname = talloc_strdup(credentials, data);
uname_free = uname;
if ((p = strchr_m(uname,'%'))) {
*p = 0;
cli_credentials_set_password(credentials, p+1, obtained);
}
if ((p = strchr_m(uname,'@'))) {
/*
* We also need to set username and domain
* in order to undo the effect of
* cli_credentials_guess().
*/
cli_credentials_set_username(credentials, uname, obtained);
cli_credentials_set_domain(credentials, "", obtained);
cli_credentials_set_principal(credentials, uname, obtained);
*p = 0;
cli_credentials_set_realm(credentials, p+1, obtained);
TALLOC_FREE(uname_free);
return;
} else if ((p = strchr_m(uname,'\\'))
|| (p = strchr_m(uname, '/'))
|| (p = strchr_m(uname, credentials->winbind_separator)))
{
const char *domain = NULL;
domain = uname;
*p = 0;
uname = p+1;
if (obtained == credentials->realm_obtained &&
!strequal_m(credentials->domain, domain))
{
/*
* We need to undo a former set with the same level
* in order to get the expected result from
* cli_credentials_get_principal().
*
* But we only need to do that if the domain
* actually changes.
*/
cli_credentials_set_realm(credentials, domain, obtained);
}
cli_credentials_set_domain(credentials, domain, obtained);
}
if (obtained == credentials->principal_obtained &&
!strequal_m(credentials->username, uname))
{
/*
* We need to undo a former set with the same level
* in order to get the expected result from
* cli_credentials_get_principal().
*
* But we only need to do that if the username
* actually changes.
*/
credentials->principal_obtained = CRED_UNINITIALISED;
credentials->principal = NULL;
}
cli_credentials_set_username(credentials, uname, obtained);
TALLOC_FREE(uname_free);
}
/**
* Given a a credentials structure, print it as a string
*
* The format output is [domain\\]user[%password] or user[@realm][%password]
*
* @param credentials Credentials structure on which to set the password
* @param mem_ctx The memory context to place the result on
*/
_PUBLIC_ char *cli_credentials_get_unparsed_name(struct cli_credentials *credentials, TALLOC_CTX *mem_ctx)
{
const char *bind_dn = cli_credentials_get_bind_dn(credentials);
const char *domain = NULL;
const char *username = NULL;
char *name = NULL;
if (bind_dn) {
name = talloc_strdup(mem_ctx, bind_dn);
} else {
cli_credentials_get_ntlm_username_domain(credentials, mem_ctx, &username, &domain);
if (domain && domain[0]) {
name = talloc_asprintf(mem_ctx, "%s\\%s",
domain, username);
} else {
name = talloc_asprintf(mem_ctx, "%s",
username);
}
}
return name;
}
/**
* Specifies default values for domain, workstation and realm
* from the smb.conf configuration file
*
* @param cred Credentials structure to fill in
*
* @return true on success, false on error.
*/
_PUBLIC_ bool cli_credentials_set_conf(struct cli_credentials *cred,
struct loadparm_context *lp_ctx)
{
const char *sep = NULL;
const char *realm = lpcfg_realm(lp_ctx);
enum credentials_client_protection protection =
lpcfg_client_protection(lp_ctx);
const char *workgroup = lpcfg_workgroup(lp_ctx);
const char *netbios_name = lpcfg_netbios_name(lp_ctx);
bool ok;
(void)cli_credentials_set_username(cred, "", CRED_UNINITIALISED);
if (workgroup != NULL && strlen(workgroup) == 0) {
workgroup = NULL;
}
if (workgroup != NULL) {
if (lpcfg_parm_is_cmdline(lp_ctx, "workgroup")) {
ok = cli_credentials_set_domain(cred,
workgroup,
CRED_SPECIFIED);
if (!ok) {
DBG_ERR("Failed to set domain!\n");
return false;
}
} else {
(void)cli_credentials_set_domain(cred,
workgroup,
CRED_SMB_CONF);
}
}
if (netbios_name != NULL && strlen(netbios_name) == 0) {
netbios_name = NULL;
}
if (netbios_name != NULL) {
if (lpcfg_parm_is_cmdline(lp_ctx, "netbios name")) {
ok = cli_credentials_set_workstation(cred,
netbios_name,
CRED_SPECIFIED);
if (!ok) {
DBG_ERR("Failed to set workstation!\n");
return false;
}
} else {
(void)cli_credentials_set_workstation(cred,
netbios_name,
CRED_SMB_CONF);
}
}
if (realm != NULL && strlen(realm) == 0) {
realm = NULL;
}
if (realm != NULL) {
if (lpcfg_parm_is_cmdline(lp_ctx, "realm")) {
ok = cli_credentials_set_realm(cred,
realm,
CRED_SPECIFIED);
if (!ok) {
DBG_ERR("Failed to set realm!\n");
return false;
}
} else {
(void)cli_credentials_set_realm(cred,
realm,
CRED_SMB_CONF);
}
}
sep = lpcfg_winbind_separator(lp_ctx);
if (sep != NULL && sep[0] != '\0') {
cred->winbind_separator = *lpcfg_winbind_separator(lp_ctx);
}
if (cred->signing_state_obtained <= CRED_SMB_CONF) {
/* Will be set to default for invalid smb.conf values */
cred->signing_state = lpcfg_client_signing(lp_ctx);
if (cred->signing_state == SMB_SIGNING_DEFAULT) {
switch (protection) {
case CRED_CLIENT_PROTECTION_DEFAULT:
break;
case CRED_CLIENT_PROTECTION_PLAIN:
cred->signing_state = SMB_SIGNING_OFF;
break;
case CRED_CLIENT_PROTECTION_SIGN:
case CRED_CLIENT_PROTECTION_ENCRYPT:
cred->signing_state = SMB_SIGNING_REQUIRED;
break;
}
}
cred->signing_state_obtained = CRED_SMB_CONF;
}
if (cred->ipc_signing_state_obtained <= CRED_SMB_CONF) {
/* Will be set to required for invalid smb.conf values */
cred->ipc_signing_state = lpcfg_client_ipc_signing(lp_ctx);
cred->ipc_signing_state_obtained = CRED_SMB_CONF;
}
if (cred->encryption_state_obtained <= CRED_SMB_CONF) {
/* Will be set to default for invalid smb.conf values */
cred->encryption_state = lpcfg_client_smb_encrypt(lp_ctx);
if (cred->encryption_state == SMB_ENCRYPTION_DEFAULT) {
switch (protection) {
case CRED_CLIENT_PROTECTION_DEFAULT:
break;
case CRED_CLIENT_PROTECTION_PLAIN:
case CRED_CLIENT_PROTECTION_SIGN:
cred->encryption_state = SMB_ENCRYPTION_OFF;
break;
case CRED_CLIENT_PROTECTION_ENCRYPT:
cred->encryption_state = SMB_ENCRYPTION_REQUIRED;
break;
}
}
}
if (cred->kerberos_state_obtained <= CRED_SMB_CONF) {
/* Will be set to default for invalid smb.conf values */
cred->kerberos_state = lpcfg_client_use_kerberos(lp_ctx);
cred->kerberos_state_obtained = CRED_SMB_CONF;
}
if (cred->gensec_features_obtained <= CRED_SMB_CONF) {
switch (protection) {
case CRED_CLIENT_PROTECTION_DEFAULT:
break;
case CRED_CLIENT_PROTECTION_PLAIN:
cred->gensec_features = 0;
break;
case CRED_CLIENT_PROTECTION_SIGN:
cred->gensec_features = GENSEC_FEATURE_SIGN;
break;
case CRED_CLIENT_PROTECTION_ENCRYPT:
cred->gensec_features =
GENSEC_FEATURE_SIGN|GENSEC_FEATURE_SEAL;
break;
}
cred->gensec_features_obtained = CRED_SMB_CONF;
}
return true;
}
/**
* Guess defaults for credentials from environment variables,
* and from the configuration file
*
* @param cred Credentials structure to fill in
*/
_PUBLIC_ bool cli_credentials_guess(struct cli_credentials *cred,
struct loadparm_context *lp_ctx)
{
const char *error_string;
const char *env = NULL;
struct passwd *pwd = NULL;
bool ok;
if (lp_ctx != NULL) {
ok = cli_credentials_set_conf(cred, lp_ctx);
if (!ok) {
return false;
}
}
pwd = getpwuid(getuid());
if (pwd != NULL) {
size_t len = strlen(pwd->pw_name);
if (len > 0 && len <= 1024) {
(void)cli_credentials_parse_string(cred,
pwd->pw_name,
CRED_GUESS_ENV);
}
}
env = getenv("LOGNAME");
if (env != NULL) {
size_t len = strlen(env);
if (len > 0 && len <= 1024) {
(void)cli_credentials_set_username(cred,
env,
CRED_GUESS_ENV);
}
}
env = getenv("USER");
if (env != NULL) {
size_t len = strlen(env);
if (len > 0 && len <= 1024) {
char *p = NULL;
(void)cli_credentials_parse_string(cred,
env,
CRED_GUESS_ENV);
if ((p = strchr_m(env, '%'))) {
memset(p, '\0', strlen(cred->password));
}
}
}
env = getenv("PASSWD");
if (env != NULL) {
size_t len = strlen(env);
if (len > 0 && len <= 1024) {
(void)cli_credentials_set_password(cred,
env,
CRED_GUESS_ENV);
}
}
env = getenv("PASSWD_FD");
if (env != NULL) {
size_t len = strlen(env);
if (len > 0 && len <= 1024) {
int fd = atoi(env);
(void)cli_credentials_parse_password_fd(cred,
fd,
CRED_GUESS_FILE);
}
}
env = getenv("PASSWD_FILE");
if (env != NULL) {
size_t len = strlen(env);
if (len > 0 && len <= 4096) {
(void)cli_credentials_parse_password_file(cred,
env,
CRED_GUESS_FILE);
}
}
if (lp_ctx != NULL &&
cli_credentials_get_kerberos_state(cred) != CRED_USE_KERBEROS_DISABLED) {
(void)cli_credentials_set_ccache(cred,
lp_ctx,
NULL,
CRED_GUESS_FILE,
&error_string);
}
return true;
}
/**
* Attach NETLOGON credentials for use with SCHANNEL
*/
_PUBLIC_ void cli_credentials_set_netlogon_creds(
struct cli_credentials *cred,
const struct netlogon_creds_CredentialState *netlogon_creds)
{
TALLOC_FREE(cred->netlogon_creds);
if (netlogon_creds == NULL) {
return;
}
cred->netlogon_creds = netlogon_creds_copy(cred, netlogon_creds);
}
/**
* Return attached NETLOGON credentials
*/
_PUBLIC_ struct netlogon_creds_CredentialState *cli_credentials_get_netlogon_creds(struct cli_credentials *cred)
{
return cred->netlogon_creds;
}
/**
* Set NETLOGON secure channel type
*/
_PUBLIC_ 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 channel type
*/
_PUBLIC_ time_t cli_credentials_get_password_last_changed_time(struct cli_credentials *cred)
{
return cred->password_last_changed_time;
}
/**
* Set NETLOGON secure channel type
*/
_PUBLIC_ void cli_credentials_set_password_last_changed_time(struct cli_credentials *cred,
time_t last_changed_time)
{
cred->password_last_changed_time = last_changed_time;
}
/**
* Return NETLOGON secure channel type
*/
_PUBLIC_ enum netr_SchannelType cli_credentials_get_secure_channel_type(struct cli_credentials *cred)
{
return cred->secure_channel_type;
}
/**
* Fill in a credentials structure as the anonymous user
*/
_PUBLIC_ void cli_credentials_set_anonymous(struct cli_credentials *cred)
{
cli_credentials_set_username(cred, "", CRED_SPECIFIED);
cli_credentials_set_domain(cred, "", CRED_SPECIFIED);
cli_credentials_set_password(cred, NULL, CRED_SPECIFIED);
cli_credentials_set_principal(cred, NULL, CRED_SPECIFIED);
cli_credentials_set_realm(cred, NULL, CRED_SPECIFIED);
cli_credentials_set_workstation(cred, "", CRED_UNINITIALISED);
cli_credentials_set_kerberos_state(cred,
CRED_USE_KERBEROS_DISABLED,
CRED_SPECIFIED);
}
/**
* Describe a credentials context as anonymous or authenticated
* @retval true if anonymous, false if a username is specified
*/
_PUBLIC_ bool cli_credentials_is_anonymous(struct cli_credentials *cred)
{
const char *username;
/* if bind dn is set it's not anonymous */
if (cred->bind_dn) {
return false;
}
if (cred->machine_account_pending) {
cli_credentials_set_machine_account(cred,
cred->machine_account_pending_lp_ctx);
}
/* if principal is set, it's not anonymous */
if ((cred->principal != NULL) && cred->principal_obtained >= cred->username_obtained) {
return false;
}
username = cli_credentials_get_username(cred);
/* 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]) {
return true;
}
return false;
}
/**
* Mark the current password for a credentials struct as wrong. This will
* cause the password to be prompted again (if a callback is set).
*
* This will decrement the number of times the password can be tried.
*
* @retval whether the credentials struct is finished
*/
_PUBLIC_ bool cli_credentials_wrong_password(struct cli_credentials *cred)
{
if (cred->password_obtained != CRED_CALLBACK_RESULT) {
return false;
}
if (cred->password_tries == 0) {
return false;
}
cred->password_tries--;
if (cred->password_tries == 0) {
return false;
}
cred->password_obtained = CRED_CALLBACK;
return true;
}
_PUBLIC_ void cli_credentials_get_ntlm_username_domain(struct cli_credentials *cred, TALLOC_CTX *mem_ctx,
const char **username,
const char **domain)
{
if (cred->principal_obtained >= cred->username_obtained) {
*domain = talloc_strdup(mem_ctx, "");
*username = cli_credentials_get_principal(cred, mem_ctx);
} else {
*domain = cli_credentials_get_domain(cred);
*username = cli_credentials_get_username(cred);
}
}
/**
* Read a named file, and parse it for username, domain, realm and password
*
* @param credentials Credentials structure on which to set the password
* @param file a named file to read the details from
* @param obtained This enum describes how 'specified' this password is
*/
_PUBLIC_ bool cli_credentials_parse_file(struct cli_credentials *cred, const char *file, enum credentials_obtained obtained)
{
uint16_t len = 0;
char *ptr, *val, *param;
char **lines;
int i, numlines;
const char *realm = NULL;
const char *domain = NULL;
const char *password = NULL;
const char *username = NULL;
lines = file_lines_load(file, &numlines, 0, NULL);
if (lines == NULL)
{
/* fail if we can't open the credentials file */
d_printf("ERROR: Unable to open credentials file!\n");
return false;
}
for (i = 0; i < numlines; i++) {
len = strlen(lines[i]);
if (len == 0)
continue;
/* break up the line into parameter & value.
* will need to eat a little whitespace possibly */
param = lines[i];
if (!(ptr = strchr_m (lines[i], '=')))
continue;
val = ptr+1;
*ptr = '\0';
/* eat leading white space */
while ((*val!='\0') && ((*val==' ') || (*val=='\t')))
val++;
if (strwicmp("password", param) == 0) {
password = val;
} else if (strwicmp("username", param) == 0) {
username = val;
} else if (strwicmp("domain", param) == 0) {
domain = val;
} else if (strwicmp("realm", param) == 0) {
realm = val;
}
/*
* We need to readd '=' in order to let
* the strlen() work in the last loop
* that clears the memory.
*/
*ptr = '=';
}
if (realm != NULL && strlen(realm) != 0) {
/*
* only overwrite with a valid string
*/
cli_credentials_set_realm(cred, realm, obtained);
}
if (domain != NULL && strlen(domain) != 0) {
/*
* only overwrite with a valid string
*/
cli_credentials_set_domain(cred, domain, obtained);
}
if (password != NULL) {
/*
* Here we allow "".
*/
cli_credentials_set_password(cred, password, obtained);
}
if (username != NULL) {
/*
* The last "username" line takes preference
* if the string also contains domain, realm or
* password.
*/
cli_credentials_parse_string(cred, username, obtained);
}
for (i = 0; i < numlines; i++) {
len = strlen(lines[i]);
memset(lines[i], 0, len);
}
talloc_free(lines);
return true;
}
/**
* Read a named file, and parse it for a password
*
* @param credentials Credentials structure on which to set the password
* @param file a named file to read the password from
* @param obtained This enum describes how 'specified' this password is
*/
_PUBLIC_ bool cli_credentials_parse_password_file(struct cli_credentials *credentials, const char *file, enum credentials_obtained obtained)
{
int fd = open(file, O_RDONLY, 0);
bool ret;
if (fd < 0) {
fprintf(stderr, "Error opening password file %s: %s\n",
file, strerror(errno));
return false;
}
ret = cli_credentials_parse_password_fd(credentials, fd, obtained);
close(fd);
return ret;
}
/**
* Read a file descriptor, and parse it for a password (eg from a file or stdin)
*
* @param credentials Credentials structure on which to set the password
* @param fd open file descriptor to read the password from
* @param obtained This enum describes how 'specified' this password is
*/
_PUBLIC_ bool cli_credentials_parse_password_fd(struct cli_credentials *credentials,
int fd, enum credentials_obtained obtained)
{
char *p;
char pass[128];
if (credentials->password_obtained >= obtained) {
return false;
}
for(p = pass, *p = '\0'; /* ensure that pass is null-terminated */
p && p - pass < sizeof(pass) - 1;) {
switch (read(fd, p, 1)) {
case 1:
if (*p != '\n' && *p != '\0') {
*++p = '\0'; /* advance p, and null-terminate pass */
break;
}
FALL_THROUGH;
case 0:
if (p - pass) {
*p = '\0'; /* null-terminate it, just in case... */
p = NULL; /* then force the loop condition to become false */
break;
}
fprintf(stderr,
"Error reading password from file descriptor "
"%d: empty password\n",
fd);
return false;
default:
fprintf(stderr, "Error reading password from file descriptor %d: %s\n",
fd, strerror(errno));
return false;
}
}
cli_credentials_set_password(credentials, pass, obtained);
return true;
}
/**
* @brief Set the SMB signing state to request for a SMB connection.
*
* @param[in] creds The credentials structure to update.
*
* @param[in] signing_state The signing state to set.
*
* @param obtained This way the described signing state was specified.
*
* @return true if we could set the signing state, false otherwise.
*/
_PUBLIC_ bool cli_credentials_set_smb_signing(struct cli_credentials *creds,
enum smb_signing_setting signing_state,
enum credentials_obtained obtained)
{
if (obtained >= creds->signing_state_obtained) {
creds->signing_state_obtained = obtained;
creds->signing_state = signing_state;
return true;
}
return false;
}
/**
* @brief Obtain the SMB signing state from a credentials structure.
*
* @param[in] creds The credential structure to obtain the SMB signing state
* from.
*
* @return The SMB signing state.
*/
_PUBLIC_ enum smb_signing_setting
cli_credentials_get_smb_signing(struct cli_credentials *creds)
{
return creds->signing_state;
}
/**
* @brief Set the SMB IPC signing state to request for a SMB connection.
*
* @param[in] creds The credentials structure to update.
*
* @param[in] signing_state The signing state to set.
*
* @param obtained This way the described signing state was specified.
*
* @return true if we could set the signing state, false otherwise.
*/
_PUBLIC_ bool
cli_credentials_set_smb_ipc_signing(struct cli_credentials *creds,
enum smb_signing_setting ipc_signing_state,
enum credentials_obtained obtained)
{
if (obtained >= creds->ipc_signing_state_obtained) {
creds->ipc_signing_state_obtained = obtained;
creds->ipc_signing_state = ipc_signing_state;
return true;
}
return false;
}
/**
* @brief Obtain the SMB IPC signing state from a credentials structure.
*
* @param[in] creds The credential structure to obtain the SMB IPC signing
* state from.
*
* @return The SMB signing state.
*/
_PUBLIC_ enum smb_signing_setting
cli_credentials_get_smb_ipc_signing(struct cli_credentials *creds)
{
return creds->ipc_signing_state;
}
/**
* @brief Set the SMB encryption state to request for a SMB connection.
*
* @param[in] creds The credentials structure to update.
*
* @param[in] encryption_state The encryption state to set.
*
* @param obtained This way the described encryption state was specified.
*
* @return true if we could set the encryption state, false otherwise.
*/
_PUBLIC_ bool cli_credentials_set_smb_encryption(struct cli_credentials *creds,
enum smb_encryption_setting encryption_state,
enum credentials_obtained obtained)
{
if (obtained >= creds->encryption_state_obtained) {
creds->encryption_state_obtained = obtained;
creds->encryption_state = encryption_state;
return true;
}
return false;
}
static const char *obtained_to_str(enum credentials_obtained obtained)
{
switch (obtained) {
case CRED_UNINITIALISED:
return "CRED_UNINITIALISED";
case CRED_SMB_CONF:
return "CRED_SMB_CONF";
case CRED_CALLBACK:
return "CRED_CALLBACK";
case CRED_GUESS_ENV:
return "CRED_GUESS_ENV";
case CRED_GUESS_FILE:
return "CRED_GUESS_FILE";
case CRED_CALLBACK_RESULT:
return "CRED_CALLBACK_RESULT";
case CRED_SPECIFIED:
return "CRED_SPECIFIED";
}
/* Never reached */
return "";
}
static const char *krb5_state_to_str(enum credentials_use_kerberos krb5_state)
{
switch (krb5_state) {
case CRED_USE_KERBEROS_DISABLED:
return "CRED_USE_KERBEROS_DISABLED";
case CRED_USE_KERBEROS_DESIRED:
return "CRED_USE_KERBEROS_DESIRED";
case CRED_USE_KERBEROS_REQUIRED:
return "CRED_USE_KERBEROS_REQUIRED";
}
/* Never reached */
return "";
}
static const char *krb5_fwd_to_str(enum credentials_krb_forwardable krb5_fwd)
{
switch (krb5_fwd) {
case CRED_AUTO_KRB_FORWARDABLE:
return "CRED_AUTO_KRB_FORWARDABLE";
case CRED_NO_KRB_FORWARDABLE:
return "CRED_NO_KRB_FORWARDABLE";
case CRED_FORCE_KRB_FORWARDABLE:
return "CRED_FORCE_KRB_FORWARDABLE";
}
/* Never reached */
return "";
}
static const char *signing_state_to_str(enum smb_signing_setting signing_state)
{
switch(signing_state) {
case SMB_SIGNING_IPC_DEFAULT:
return "SMB_SIGNING_IPC_DEFAULT";
case SMB_SIGNING_DEFAULT:
return "SMB_SIGNING_DEFAULT";
case SMB_SIGNING_OFF:
return "SMB_SIGNING_OFF";
case SMB_SIGNING_IF_REQUIRED:
return "SMB_SIGNING_IF_REQUIRED";
case SMB_SIGNING_DESIRED:
return "SMB_SIGNING_DESIRED";
case SMB_SIGNING_REQUIRED:
return "SMB_SIGNING_REQUIRED";
}
/* Never reached */
return "";
}
static const char *encryption_state_to_str(enum smb_encryption_setting encryption_state)
{
switch(encryption_state) {
case SMB_ENCRYPTION_DEFAULT:
return "SMB_ENCRYPTION_DEFAULT";
case SMB_ENCRYPTION_OFF:
return "SMB_ENCRYPTION_OFF";
case SMB_ENCRYPTION_IF_REQUIRED:
return "SMB_ENCRYPTION_IF_REQUIRED";
case SMB_ENCRYPTION_DESIRED:
return "SMB_ENCRYPTION_DESIRED";
case SMB_ENCRYPTION_REQUIRED:
return "SMB_ENCRYPTION_REQUIRED";
}
/* Never reached */
return "";
}
_PUBLIC_ void cli_credentials_dump(struct cli_credentials *creds)
{
DBG_ERR("CLI_CREDENTIALS:\n");
DBG_ERR("\n");
DBG_ERR(" Username: %s - %s\n",
creds->username,
obtained_to_str(creds->username_obtained));
DBG_ERR(" Workstation: %s - %s\n",
creds->workstation,
obtained_to_str(creds->workstation_obtained));
DBG_ERR(" Domain: %s - %s\n",
creds->domain,
obtained_to_str(creds->domain_obtained));
DBG_ERR(" Password: %s - %s\n",
creds->password != NULL ? "*SECRET*" : "NULL",
obtained_to_str(creds->password_obtained));
DBG_ERR(" Old password: %s\n",
creds->old_password != NULL ? "*SECRET*" : "NULL");
DBG_ERR(" Password tries: %u\n",
creds->password_tries);
DBG_ERR(" Realm: %s - %s\n",
creds->realm,
obtained_to_str(creds->realm_obtained));
DBG_ERR(" Principal: %s - %s\n",
creds->principal,
obtained_to_str(creds->principal_obtained));
DBG_ERR(" Salt principal: %s\n",
creds->salt_principal);
DBG_ERR(" Impersonate principal: %s\n",
creds->impersonate_principal);
DBG_ERR(" Self service: %s\n",
creds->self_service);
DBG_ERR(" Target service: %s\n",
creds->target_service);
DBG_ERR(" Kerberos state: %s - %s\n",
krb5_state_to_str(creds->kerberos_state),
obtained_to_str(creds->kerberos_state_obtained));
DBG_ERR(" Kerberos forwardable ticket: %s\n",
krb5_fwd_to_str(creds->krb_forwardable));
DBG_ERR(" Signing state: %s - %s\n",
signing_state_to_str(creds->signing_state),
obtained_to_str(creds->signing_state_obtained));
DBG_ERR(" IPC signing state: %s - %s\n",
signing_state_to_str(creds->ipc_signing_state),
obtained_to_str(creds->ipc_signing_state_obtained));
DBG_ERR(" Encryption state: %s - %s\n",
encryption_state_to_str(creds->encryption_state),
obtained_to_str(creds->encryption_state_obtained));
DBG_ERR(" Gensec features: %#X\n",
creds->gensec_features);
DBG_ERR(" Forced sasl mech: %s\n",
creds->forced_sasl_mech);
DBG_ERR(" CCACHE: %p - %s\n",
creds->ccache,
obtained_to_str(creds->ccache_obtained));
DBG_ERR(" CLIENT_GSS_CREDS: %p - %s\n",
creds->client_gss_creds,
obtained_to_str(creds->client_gss_creds_obtained));
DBG_ERR(" SERVER_GSS_CREDS: %p - %s\n",
creds->server_gss_creds,
obtained_to_str(creds->server_gss_creds_obtained));
DBG_ERR(" KEYTAB: %p - %s\n",
creds->keytab,
obtained_to_str(creds->keytab_obtained));
DBG_ERR(" KVNO: %u\n",
creds->kvno);
DBG_ERR("\n");
}
/**
* @brief Obtain the SMB encryption state from a credentials structure.
*
* @param[in] creds The credential structure to obtain the SMB encryption state
* from.
*
* @return The SMB signing state.
*/
_PUBLIC_ enum smb_encryption_setting
cli_credentials_get_smb_encryption(struct cli_credentials *creds)
{
return creds->encryption_state;
}