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Diffstat (limited to 'source4/auth/credentials/credentials.c')
| -rw-r--r-- | source4/auth/credentials/credentials.c | 1002 |
1 files changed, 0 insertions, 1002 deletions
diff --git a/source4/auth/credentials/credentials.c b/source4/auth/credentials/credentials.c deleted file mode 100644 index 83e90344bf..0000000000 --- a/source4/auth/credentials/credentials.c +++ /dev/null @@ -1,1002 +0,0 @@ -/* - 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 "librpc/gen_ndr/samr.h" /* for struct samrPassword */ -#include "auth/credentials/credentials.h" -#include "auth/credentials/credentials_proto.h" -#include "libcli/auth/libcli_auth.h" -#include "lib/events/events.h" -#include "param/param.h" -#include "system/filesys.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(mem_ctx, struct cli_credentials); - if (cred == NULL) { - return cred; - } - - cred->workstation_obtained = CRED_UNINITIALISED; - cred->username_obtained = CRED_UNINITIALISED; - cred->password_obtained = CRED_UNINITIALISED; - cred->domain_obtained = CRED_UNINITIALISED; - cred->realm_obtained = CRED_UNINITIALISED; - cred->ccache_obtained = CRED_UNINITIALISED; - cred->client_gss_creds_obtained = CRED_UNINITIALISED; - cred->principal_obtained = CRED_UNINITIALISED; - cred->keytab_obtained = CRED_UNINITIALISED; - cred->server_gss_creds_obtained = CRED_UNINITIALISED; - - cred->ccache_threshold = CRED_UNINITIALISED; - cred->client_gss_creds_threshold = CRED_UNINITIALISED; - - cred->workstation = NULL; - cred->username = NULL; - cred->password = NULL; - cred->old_password = NULL; - cred->domain = NULL; - cred->realm = NULL; - cred->principal = NULL; - cred->salt_principal = NULL; - cred->impersonate_principal = NULL; - cred->self_service = NULL; - cred->target_service = NULL; - - cred->bind_dn = NULL; - - cred->nt_hash = NULL; - - cred->lm_response.data = NULL; - cred->lm_response.length = 0; - cred->nt_response.data = NULL; - cred->nt_response.length = 0; - - cred->ccache = NULL; - cred->client_gss_creds = NULL; - cred->keytab = NULL; - cred->server_gss_creds = NULL; - - cred->workstation_cb = NULL; - cred->password_cb = NULL; - cred->username_cb = NULL; - cred->domain_cb = NULL; - cred->realm_cb = NULL; - cred->principal_cb = NULL; - - cred->priv_data = NULL; - - cred->netlogon_creds = NULL; - cred->secure_channel_type = SEC_CHAN_NULL; - - cred->kvno = 0; - - cred->password_last_changed_time = 0; - - cred->smb_krb5_context = NULL; - - cred->machine_account_pending = false; - cred->machine_account_pending_lp_ctx = NULL; - - cred->machine_account = false; - - cred->tries = 3; - - cred->callback_running = false; - - cli_credentials_set_kerberos_state(cred, CRED_AUTO_USE_KERBEROS); - cli_credentials_set_gensec_features(cred, 0); - cli_credentials_set_krb_forwardable(cred, CRED_AUTO_KRB_FORWARDABLE); - - return cred; -} - -/** - * 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_ void cli_credentials_set_kerberos_state(struct cli_credentials *creds, - enum credentials_use_kerberos use_kerberos) -{ - creds->use_kerberos = use_kerberos; -} - -_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->use_kerberos; -} - -_PUBLIC_ enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds) -{ - return creds->krb_forwardable; -} - -_PUBLIC_ void cli_credentials_set_gensec_features(struct cli_credentials *creds, uint32_t gensec_features) -{ - creds->gensec_features = gensec_features; -} - -_PUBLIC_ uint32_t cli_credentials_get_gensec_features(struct cli_credentials *creds) -{ - return creds->gensec_features; -} - - -/** - * 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; - cred->username_obtained = CRED_SPECIFIED; - cli_credentials_invalidate_ccache(cred, cred->username_obtained); - } - - return cred->username; -} - -_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; -} - -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 explictly - */ -_PUBLIC_ const char *cli_credentials_get_bind_dn(struct cli_credentials *cred) -{ - return cred->bind_dn; -} - - -/** - * 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_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; - cred->principal_obtained = CRED_SPECIFIED; - 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)) { - if (cred->domain_obtained > cred->realm_obtained) { - *obtained = MIN(cred->domain_obtained, cred->username_obtained); - return talloc_asprintf(mem_ctx, "%s@%s", - cli_credentials_get_username(cred), - cli_credentials_get_domain(cred)); - } else { - *obtained = MIN(cred->domain_obtained, cred->username_obtained); - return talloc_asprintf(mem_ctx, "%s@%s", - cli_credentials_get_username(cred), - cli_credentials_get_realm(cred)); - } - } - *obtained = cred->principal_obtained; - return talloc_reference(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_ const 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); -} - -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; - 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. */ -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) -{ - if (cred->bind_dn) { - 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_MUST_USE_KERBEROS) { - 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->callback_running = true; - cred->password = cred->password_cb(cred); - cred->callback_running = false; - cred->password_obtained = CRED_CALLBACK_RESULT; - cli_credentials_invalidate_ccache(cred, cred->password_obtained); - } - - return cred->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->password = talloc_strdup(cred, val); - cred->password_obtained = obtained; - cli_credentials_invalidate_ccache(cred, cred->password_obtained); - - cred->nt_hash = NULL; - cred->lm_response = data_blob(NULL, 0); - cred->nt_response = data_blob(NULL, 0); - 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_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 - */ -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; -} - -bool cli_credentials_set_old_password(struct cli_credentials *cred, - const char *val, - enum credentials_obtained obtained) -{ - cred->old_password = talloc_strdup(cred, val); - 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_ 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; - } -} - -/** - * 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; - cred->domain_obtained = CRED_SPECIFIED; - cli_credentials_invalidate_ccache(cred, cred->domain_obtained); - } - - return cred->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; - cli_credentials_invalidate_ccache(cred, cred->domain_obtained); - 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; - cred->realm_obtained = CRED_SPECIFIED; - 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 sainity 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; - cred->workstation_obtained = CRED_SPECIFIED; - } - - 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; - - if (strcmp("%",data) == 0) { - cli_credentials_set_anonymous(credentials); - return; - } - - uname = talloc_strdup(credentials, data); - if ((p = strchr_m(uname,'%'))) { - *p = 0; - cli_credentials_set_password(credentials, p+1, obtained); - } - - 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); - uname = p+1; - } - cli_credentials_set_username(credentials, uname, obtained); -} - -/** - * 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_ const 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; - const char *username; - const char *name; - - if (bind_dn) { - name = talloc_reference(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 - */ -_PUBLIC_ void cli_credentials_set_conf(struct cli_credentials *cred, - struct loadparm_context *lp_ctx) -{ - cli_credentials_set_username(cred, "", CRED_UNINITIALISED); - cli_credentials_set_domain(cred, lpcfg_workgroup(lp_ctx), CRED_UNINITIALISED); - cli_credentials_set_workstation(cred, lpcfg_netbios_name(lp_ctx), CRED_UNINITIALISED); - cli_credentials_set_realm(cred, lpcfg_realm(lp_ctx), CRED_UNINITIALISED); -} - -/** - * Guess defaults for credentials from environment variables, - * and from the configuration file - * - * @param cred Credentials structure to fill in - */ -_PUBLIC_ void cli_credentials_guess(struct cli_credentials *cred, - struct loadparm_context *lp_ctx) -{ - char *p; - const char *error_string; - - if (lp_ctx != NULL) { - cli_credentials_set_conf(cred, lp_ctx); - } - - if (getenv("LOGNAME")) { - cli_credentials_set_username(cred, getenv("LOGNAME"), CRED_GUESS_ENV); - } - - if (getenv("USER")) { - cli_credentials_parse_string(cred, getenv("USER"), CRED_GUESS_ENV); - if ((p = strchr_m(getenv("USER"),'%'))) { - memset(p,0,strlen(cred->password)); - } - } - - if (getenv("PASSWD")) { - 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_GUESS_FILE); - } - - p = getenv("PASSWD_FILE"); - if (p && p[0]) { - cli_credentials_parse_password_file(cred, p, CRED_GUESS_FILE); - } - - if (cli_credentials_get_kerberos_state(cred) != CRED_DONT_USE_KERBEROS) { - cli_credentials_set_ccache(cred, lp_ctx, NULL, CRED_GUESS_FILE, - &error_string); - } -} - -/** - * Attach NETLOGON credentials for use with SCHANNEL - */ - -_PUBLIC_ void cli_credentials_set_netlogon_creds(struct cli_credentials *cred, - struct netlogon_creds_CredentialState *netlogon_creds) -{ - cred->netlogon_creds = talloc_reference(cred, netlogon_creds); -} - -/** - * Return attached NETLOGON credentials - */ - -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 chanel 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 chanel 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_realm(cred, NULL, CRED_SPECIFIED); - cli_credentials_set_workstation(cred, "", CRED_UNINITIALISED); -} - -/** - * 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); - } - - 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; - } - - cred->password_obtained = CRED_CALLBACK; - - cred->tries--; - - return (cred->tries > 0); -} - -_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; - - 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) { - cli_credentials_set_password(cred, val, obtained); - } else if (strwicmp("username", param) == 0) { - cli_credentials_set_username(cred, val, obtained); - } else if (strwicmp("domain", param) == 0) { - cli_credentials_set_domain(cred, val, obtained); - } else if (strwicmp("realm", param) == 0) { - cli_credentials_set_realm(cred, val, obtained); - } - 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]; - - for(p = pass, *p = '\0'; /* ensure that pass is null-terminated */ - p && p - pass < sizeof(pass);) { - 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; - } else { - fprintf(stderr, "Error reading password from file descriptor %d: %s\n", fd, "empty password\n"); - 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; -} - - |