Copyright Andrew Bartlett <abartlet@samba.org> 2002
Copyright Guenther Deschner <gd@samba.org> 2005-2007
- largely based on pam_userdb by Cristian Gafton <gafton@redhat.com>
- also contains large slabs of code from pam_unix by Elliot Lee <sopwith@redhat.com>
- (see copyright below for full details)
+ largely based on pam_userdb by Cristian Gafton <gafton@redhat.com> also
+ contains large slabs of code from pam_unix by Elliot Lee
+ <sopwith@redhat.com> (see copyright below for full details)
*/
#include "pam_winbind.h"
#define _PAM_LOG_FUNCTION_ENTER(function, pamh, ctrl, flags) \
do { \
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] ENTER: " function " (flags: 0x%04x)", (uint32) pamh, flags); \
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: %p] ENTER: " \
+ function " (flags: 0x%04x)", pamh, flags); \
_pam_log_state(pamh, ctrl); \
} while (0)
#define _PAM_LOG_FUNCTION_LEAVE(function, pamh, ctrl, retval) \
do { \
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] LEAVE: " function " returning %d", (uint32) pamh, retval); \
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: %p] LEAVE: " \
+ function " returning %d", pamh, retval); \
_pam_log_state(pamh, ctrl); \
} while (0)
#define MAX_PASSWD_TRIES 3
/*
- * Work around the pam API that has functions with void ** as parameters.
+ * Work around the pam API that has functions with void ** as parameters
* These lead to strict aliasing warnings with gcc.
*/
-static int _pam_get_item(const pam_handle_t *pamh, int item_type,
+static int _pam_get_item(const pam_handle_t *pamh,
+ int item_type,
const void *_item)
{
const void **item = (const void **)_item;
return pam_get_item(pamh, item_type, item);
}
static int _pam_get_data(const pam_handle_t *pamh,
- const char *module_data_name, const void *_data)
+ const char *module_data_name,
+ const void *_data)
{
const void **data = (const void **)_data;
return pam_get_data(pamh, module_data_name, data);
/* some syslogging */
#ifdef HAVE_PAM_VSYSLOG
-static void _pam_log_int(const pam_handle_t *pamh, int err, const char *format, va_list args)
+static void _pam_log_int(const pam_handle_t *pamh,
+ int err,
+ const char *format,
+ va_list args)
{
pam_vsyslog(pamh, err, format, args);
}
#else
-static void _pam_log_int(const pam_handle_t *pamh, int err, const char *format, va_list args)
+static void _pam_log_int(const pam_handle_t *pamh,
+ int err,
+ const char *format,
+ va_list args)
{
char *format2 = NULL;
const char *service;
_pam_get_item(pamh, PAM_SERVICE, &service);
- format2 = malloc(strlen(MODULE_NAME)+strlen(format)+strlen(service)+5);
+ format2 = (char *)malloc(strlen(MODULE_NAME)+strlen(format)+strlen(service)+5);
if (format2 == NULL) {
/* what else todo ? */
vsyslog(err, format, args);
}
#endif /* HAVE_PAM_VSYSLOG */
-static BOOL _pam_log_is_silent(int ctrl)
+static bool _pam_log_is_silent(int ctrl)
{
return on(ctrl, WINBIND_SILENT);
}
+static void _pam_log(const pam_handle_t *pamh, int ctrl, int err, const char *format, ...) PRINTF_ATTRIBUTE(4,5);
static void _pam_log(const pam_handle_t *pamh, int ctrl, int err, const char *format, ...)
{
va_list args;
va_end(args);
}
-static BOOL _pam_log_is_debug_enabled(int ctrl)
+static bool _pam_log_is_debug_enabled(int ctrl)
{
if (ctrl == -1) {
- return False;
+ return false;
}
if (_pam_log_is_silent(ctrl)) {
- return False;
+ return false;
}
if (!(ctrl & WINBIND_DEBUG_ARG)) {
- return False;
+ return false;
}
- return True;
+ return true;
}
-static BOOL _pam_log_is_debug_state_enabled(int ctrl)
+static bool _pam_log_is_debug_state_enabled(int ctrl)
{
if (!(ctrl & WINBIND_DEBUG_STATE)) {
- return False;
+ return false;
}
return _pam_log_is_debug_enabled(ctrl);
}
+static void _pam_log_debug(const pam_handle_t *pamh, int ctrl, int err, const char *format, ...) PRINTF_ATTRIBUTE(4,5);
static void _pam_log_debug(const pam_handle_t *pamh, int ctrl, int err, const char *format, ...)
{
va_list args;
va_end(args);
}
-static void _pam_log_state_datum(const pam_handle_t *pamh, int ctrl, int item_type, const char *key, int is_string)
+static void _pam_log_state_datum(const pam_handle_t *pamh,
+ int ctrl,
+ int item_type,
+ const char *key,
+ int is_string)
{
const void *data = NULL;
if (item_type != 0) {
if (data != NULL) {
const char *type = (item_type != 0) ? "ITEM" : "DATA";
if (is_string != 0) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] STATE: %s(%s) = \"%s\" (0x%08x)", (uint32) pamh, type, key, (const char *) data, (uint32) data);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "[pamh: %p] STATE: %s(%s) = \"%s\" (%p)",
+ pamh, type, key, (const char *)data,
+ data);
} else {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] STATE: %s(%s) = 0x%08x", (uint32) pamh, type, key, (uint32) data);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "[pamh: %p] STATE: %s(%s) = %p",
+ pamh, type, key, data);
}
}
}
#endif
#define _PAM_LOG_STATE_ITEM_PASSWORD(pamh, ctrl, item_type) \
- _pam_log_state_datum(pamh, ctrl, item_type, #item_type, _LOG_PASSWORD_AS_STRING)
+ _pam_log_state_datum(pamh, ctrl, item_type, #item_type, \
+ _LOG_PASSWORD_AS_STRING)
static void _pam_log_state(const pam_handle_t *pamh, int ctrl)
{
_PAM_LOG_STATE_DATA_STRING(pamh, ctrl, PAM_WINBIND_LOGONSCRIPT);
_PAM_LOG_STATE_DATA_STRING(pamh, ctrl, PAM_WINBIND_LOGONSERVER);
_PAM_LOG_STATE_DATA_STRING(pamh, ctrl, PAM_WINBIND_PROFILEPATH);
- _PAM_LOG_STATE_DATA_STRING(pamh, ctrl, PAM_WINBIND_NEW_AUTHTOK_REQD); /* Use atoi to get PAM result code */
+ _PAM_LOG_STATE_DATA_STRING(pamh, ctrl,
+ PAM_WINBIND_NEW_AUTHTOK_REQD);
+ /* Use atoi to get PAM result code */
+ _PAM_LOG_STATE_DATA_STRING(pamh, ctrl,
+ PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH);
_PAM_LOG_STATE_DATA_POINTER(pamh, ctrl, PAM_WINBIND_PWD_LAST_SET);
}
-static int _pam_parse(const pam_handle_t *pamh, int flags, int argc, const char **argv, dictionary **result_d)
+static int _pam_parse(const pam_handle_t *pamh,
+ int flags,
+ int argc,
+ const char **argv,
+ dictionary **result_d)
{
int ctrl = 0;
const char *config_file = NULL;
goto config_from_pam;
}
- if (iniparser_getboolean(d, "global:debug", False)) {
+ if (iniparser_getboolean(d, "global:debug", false)) {
ctrl |= WINBIND_DEBUG_ARG;
}
- if (iniparser_getboolean(d, "global:debug_state", False)) {
+ if (iniparser_getboolean(d, "global:debug_state", false)) {
ctrl |= WINBIND_DEBUG_STATE;
}
- if (iniparser_getboolean(d, "global:cached_login", False)) {
+ if (iniparser_getboolean(d, "global:cached_login", false)) {
ctrl |= WINBIND_CACHED_LOGIN;
}
- if (iniparser_getboolean(d, "global:krb5_auth", False)) {
+ if (iniparser_getboolean(d, "global:krb5_auth", false)) {
ctrl |= WINBIND_KRB5_AUTH;
}
- if (iniparser_getboolean(d, "global:silent", False)) {
+ if (iniparser_getboolean(d, "global:silent", false)) {
ctrl |= WINBIND_SILENT;
}
ctrl |= WINBIND_REQUIRED_MEMBERSHIP;
}
- if (iniparser_getboolean(d, "global:try_first_pass", False)) {
+ if (iniparser_getboolean(d, "global:try_first_pass", false)) {
ctrl |= WINBIND_TRY_FIRST_PASS_ARG;
}
+ if (iniparser_getint(d, "global:warn_pwd_expire", 0)) {
+ ctrl |= WINBIND_WARN_PWD_EXPIRE;
+ }
+
config_from_pam:
/* step through arguments */
for (i=argc,v=argv; i-- > 0; ++v) {
ctrl |= WINBIND_DEBUG_ARG;
else if (!strcasecmp(*v, "debug_state"))
ctrl |= WINBIND_DEBUG_STATE;
+ else if (!strcasecmp(*v, "silent"))
+ ctrl |= WINBIND_SILENT;
else if (!strcasecmp(*v, "use_authtok"))
ctrl |= WINBIND_USE_AUTHTOK_ARG;
else if (!strcasecmp(*v, "use_first_pass"))
ctrl |= WINBIND_TRY_FIRST_PASS_ARG;
else if (!strcasecmp(*v, "unknown_ok"))
ctrl |= WINBIND_UNKNOWN_OK_ARG;
- else if (!strncasecmp(*v, "require_membership_of", strlen("require_membership_of")))
+ else if (!strncasecmp(*v, "require_membership_of",
+ strlen("require_membership_of")))
ctrl |= WINBIND_REQUIRED_MEMBERSHIP;
- else if (!strncasecmp(*v, "require-membership-of", strlen("require-membership-of")))
+ else if (!strncasecmp(*v, "require-membership-of",
+ strlen("require-membership-of")))
ctrl |= WINBIND_REQUIRED_MEMBERSHIP;
else if (!strcasecmp(*v, "krb5_auth"))
ctrl |= WINBIND_KRB5_AUTH;
- else if (!strncasecmp(*v, "krb5_ccache_type", strlen("krb5_ccache_type")))
+ else if (!strncasecmp(*v, "krb5_ccache_type",
+ strlen("krb5_ccache_type")))
ctrl |= WINBIND_KRB5_CCACHE_TYPE;
else if (!strcasecmp(*v, "cached_login"))
ctrl |= WINBIND_CACHED_LOGIN;
else {
- _pam_log(pamh, ctrl, LOG_ERR, "pam_parse: unknown option: %s", *v);
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "pam_parse: unknown option: %s", *v);
return -1;
}
return ctrl;
};
-static void _pam_winbind_cleanup_func(pam_handle_t *pamh, void *data, int error_status)
+static void _pam_winbind_cleanup_func(pam_handle_t *pamh,
+ void *data,
+ int error_status)
{
int ctrl = _pam_parse(pamh, 0, 0, NULL, NULL);
if (_pam_log_is_debug_state_enabled(ctrl)) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] CLEAN: cleaning up PAM data 0x%08x (error_status = %d)", (uint32) pamh, (uint32) data, error_status);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "[pamh: %p] CLEAN: cleaning up PAM data %p "
+ "(error_status = %d)", pamh, data,
+ error_status);
}
SAFE_FREE(data);
}
const char *ntstatus_string;
const char *error_string;
} ntstatus_errors[] = {
- {"NT_STATUS_OK", "Success"},
- {"NT_STATUS_BACKUP_CONTROLLER", "No primary Domain Controler available"},
- {"NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND", "No domain controllers found"},
- {"NT_STATUS_NO_LOGON_SERVERS", "No logon servers"},
- {"NT_STATUS_PWD_TOO_SHORT", "Password too short"},
- {"NT_STATUS_PWD_TOO_RECENT", "The password of this user is too recent to change"},
- {"NT_STATUS_PWD_HISTORY_CONFLICT", "Password is already in password history"},
- {"NT_STATUS_PASSWORD_EXPIRED", "Your password has expired"},
- {"NT_STATUS_PASSWORD_MUST_CHANGE", "You need to change your password now"},
- {"NT_STATUS_INVALID_WORKSTATION", "You are not allowed to logon from this workstation"},
- {"NT_STATUS_INVALID_LOGON_HOURS", "You are not allowed to logon at this time"},
- {"NT_STATUS_ACCOUNT_EXPIRED", "Your account has expired. Please contact your System administrator"}, /* SCNR */
- {"NT_STATUS_ACCOUNT_DISABLED", "Your account is disabled. Please contact your System administrator"}, /* SCNR */
- {"NT_STATUS_ACCOUNT_LOCKED_OUT", "Your account has been locked. Please contact your System administrator"}, /* SCNR */
- {"NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT", "Invalid Trust Account"},
- {"NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT", "Invalid Trust Account"},
- {"NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT", "Invalid Trust Account"},
- {"NT_STATUS_ACCESS_DENIED", "Access is denied"},
+ {"NT_STATUS_OK",
+ "Success"},
+ {"NT_STATUS_BACKUP_CONTROLLER",
+ "No primary Domain Controler available"},
+ {"NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND",
+ "No domain controllers found"},
+ {"NT_STATUS_NO_LOGON_SERVERS",
+ "No logon servers"},
+ {"NT_STATUS_PWD_TOO_SHORT",
+ "Password too short"},
+ {"NT_STATUS_PWD_TOO_RECENT",
+ "The password of this user is too recent to change"},
+ {"NT_STATUS_PWD_HISTORY_CONFLICT",
+ "Password is already in password history"},
+ {"NT_STATUS_PASSWORD_EXPIRED",
+ "Your password has expired"},
+ {"NT_STATUS_PASSWORD_MUST_CHANGE",
+ "You need to change your password now"},
+ {"NT_STATUS_INVALID_WORKSTATION",
+ "You are not allowed to logon from this workstation"},
+ {"NT_STATUS_INVALID_LOGON_HOURS",
+ "You are not allowed to logon at this time"},
+ {"NT_STATUS_ACCOUNT_EXPIRED",
+ "Your account has expired. "
+ "Please contact your System administrator"}, /* SCNR */
+ {"NT_STATUS_ACCOUNT_DISABLED",
+ "Your account is disabled. "
+ "Please contact your System administrator"}, /* SCNR */
+ {"NT_STATUS_ACCOUNT_LOCKED_OUT",
+ "Your account has been locked. "
+ "Please contact your System administrator"}, /* SCNR */
+ {"NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT",
+ "Invalid Trust Account"},
+ {"NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT",
+ "Invalid Trust Account"},
+ {"NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT",
+ "Invalid Trust Account"},
+ {"NT_STATUS_ACCESS_DENIED",
+ "Access is denied"},
{NULL, NULL}
};
-const char *_get_ntstatus_error_string(const char *nt_status_string)
+const char *_get_ntstatus_error_string(const char *nt_status_string)
{
int i;
for (i=0; ntstatus_errors[i].ntstatus_string != NULL; i++) {
- if (!strcasecmp(ntstatus_errors[i].ntstatus_string, nt_status_string)) {
+ if (!strcasecmp(ntstatus_errors[i].ntstatus_string,
+ nt_status_string)) {
return ntstatus_errors[i].error_string;
}
}
/* Attempt a conversation */
-static int converse(pam_handle_t *pamh, int nargs,
+static int converse(pam_handle_t *pamh,
+ int nargs,
struct pam_message **message,
struct pam_response **response)
{
int retval;
struct pam_conv *conv;
- retval = _pam_get_item(pamh, PAM_CONV, &conv );
+ retval = _pam_get_item(pamh, PAM_CONV, &conv);
if (retval == PAM_SUCCESS) {
- retval = conv->conv(nargs, (const struct pam_message **)message,
+ retval = conv->conv(nargs,
+ (const struct pam_message **)message,
response, conv->appdata_ptr);
}
-
+
return retval; /* propagate error status */
}
-static int _make_remark(pam_handle_t * pamh, int flags, int type, const char *text)
+static int _make_remark(pam_handle_t * pamh,
+ int flags,
+ int type,
+ const char *text)
{
int retval = PAM_SUCCESS;
struct pam_message *pmsg[1], msg[1];
struct pam_response *resp;
-
+
if (flags & WINBIND_SILENT) {
return PAM_SUCCESS;
}
pmsg[0] = &msg[0];
- msg[0].msg = CONST_DISCARD(char *, text);
+ msg[0].msg = discard_const_p(char, text);
msg[0].msg_style = type;
-
+
resp = NULL;
retval = converse(pamh, 1, pmsg, &resp);
-
+
if (resp) {
_pam_drop_reply(resp, 1);
}
return retval;
}
-static int _make_remark_v(pam_handle_t * pamh, int flags, int type, const char *format, va_list args)
+static int _make_remark_v(pam_handle_t *pamh,
+ int flags,
+ int type,
+ const char *format,
+ va_list args)
{
char *var;
int ret;
return ret;
}
+static int _make_remark_format(pam_handle_t * pamh, int flags, int type, const char *format, ...) PRINTF_ATTRIBUTE(4,5);
static int _make_remark_format(pam_handle_t * pamh, int flags, int type, const char *format, ...)
{
int ret;
return ret;
}
-static int pam_winbind_request(pam_handle_t * pamh, int ctrl,
+static int pam_winbind_request(pam_handle_t *pamh,
+ int ctrl,
enum winbindd_cmd req_type,
struct winbindd_request *request,
struct winbindd_response *response)
{
/* Fill in request and send down pipe */
- init_request(request, req_type);
-
- if (write_sock(request, sizeof(*request), 0) == -1) {
- _pam_log(pamh, ctrl, LOG_ERR, "pam_winbind_request: write to socket failed!");
- close_sock();
+ winbindd_init_request(request, req_type);
+
+ if (winbind_write_sock(request, sizeof(*request), 0, 0) == -1) {
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "pam_winbind_request: write to socket failed!");
+ winbind_close_sock();
return PAM_SERVICE_ERR;
}
-
+
/* Wait for reply */
- if (read_reply(response) == -1) {
- _pam_log(pamh, ctrl, LOG_ERR, "pam_winbind_request: read from socket failed!");
- close_sock();
+ if (winbindd_read_reply(response) == -1) {
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "pam_winbind_request: read from socket failed!");
+ winbind_close_sock();
return PAM_SERVICE_ERR;
}
/* We are done with the socket - close it and avoid mischeif */
- close_sock();
+ winbind_close_sock();
/* Copy reply data from socket */
if (response->result == WINBINDD_OK) {
case WINBINDD_GETPWNAM:
case WINBINDD_LOOKUPNAME:
- _pam_log(pamh, ctrl, LOG_ERR, "request failed: %s, NT error was %s",
- response->data.auth.nt_status_string);
+ if (strlen(response->data.auth.nt_status_string) > 0) {
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "request failed, NT error was %s",
+ response->data.auth.nt_status_string);
+ } else {
+ _pam_log(pamh, ctrl, LOG_ERR, "request failed");
+ }
return PAM_USER_UNKNOWN;
default:
break;
}
if (response->data.auth.pam_error != PAM_SUCCESS) {
- _pam_log(pamh, ctrl, LOG_ERR, "request failed: %s, PAM error was %s (%d), NT error was %s",
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "request failed: %s, "
+ "PAM error was %s (%d), NT error was %s",
response->data.auth.error_string,
pam_strerror(pamh, response->data.auth.pam_error),
response->data.auth.pam_error,
response->data.auth.nt_status_string);
return response->data.auth.pam_error;
- }
-
+ }
+
_pam_log(pamh, ctrl, LOG_ERR, "request failed, but PAM error 0!");
return PAM_SERVICE_ERR;
}
-static int pam_winbind_request_log(pam_handle_t * pamh,
+static int pam_winbind_request_log(pam_handle_t *pamh,
int ctrl,
enum winbindd_cmd req_type,
struct winbindd_request *request,
switch (retval) {
case PAM_AUTH_ERR:
/* incorrect password */
- _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' denied access (incorrect password or invalid membership)", user);
+ _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' denied access "
+ "(incorrect password or invalid membership)", user);
return retval;
case PAM_ACCT_EXPIRED:
/* account expired */
- _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' account expired", user);
+ _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' account expired",
+ user);
return retval;
case PAM_AUTHTOK_EXPIRED:
/* password expired */
- _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' password expired", user);
+ _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' password expired",
+ user);
return retval;
case PAM_NEW_AUTHTOK_REQD:
/* new password required */
- _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' new password required", user);
+ _pam_log(pamh, ctrl, LOG_WARNING, "user '%s' new password "
+ "required", user);
return retval;
case PAM_USER_UNKNOWN:
/* the user does not exist */
- _pam_log_debug(pamh, ctrl, LOG_NOTICE, "user '%s' not found", user);
+ _pam_log_debug(pamh, ctrl, LOG_NOTICE, "user '%s' not found",
+ user);
if (ctrl & WINBIND_UNKNOWN_OK_ARG) {
return PAM_IGNORE;
- }
+ }
return retval;
case PAM_SUCCESS:
- if (req_type == WINBINDD_PAM_AUTH) {
- /* Otherwise, the authentication looked good */
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' granted access", user);
- } else if (req_type == WINBINDD_PAM_CHAUTHTOK) {
- /* Otherwise, the authentication looked good */
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' password changed", user);
- } else {
- /* Otherwise, the authentication looked good */
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' OK", user);
+ /* Otherwise, the authentication looked good */
+ switch (req_type) {
+ case WINBINDD_INFO:
+ break;
+ case WINBINDD_PAM_AUTH:
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' granted access", user);
+ break;
+ case WINBINDD_PAM_CHAUTHTOK:
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' password changed", user);
+ break;
+ default:
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' OK", user);
+ break;
}
-
+
return retval;
default:
/* we don't know anything about this return value */
- _pam_log(pamh, ctrl, LOG_ERR, "internal module error (retval = %d, user = '%s')",
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "internal module error (retval = %d, user = '%s')",
retval, user);
return retval;
}
}
-static BOOL _pam_send_password_expiry_message(pam_handle_t *pamh, int ctrl, time_t next_change, time_t now)
+/**
+ * send a password expiry message if required
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param next_change expected (calculated) next expiry date.
+ * @param already_expired pointer to a boolean to indicate if the password is
+ * already expired.
+ *
+ * @return boolean Returns true if message has been sent, false if not.
+ */
+
+static bool _pam_send_password_expiry_message(pam_handle_t *pamh,
+ int ctrl,
+ time_t next_change,
+ time_t now,
+ int warn_pwd_expire,
+ bool *already_expired)
{
int days = 0;
struct tm tm_now, tm_next_change;
+ if (already_expired) {
+ *already_expired = false;
+ }
+
+ if (next_change <= now) {
+ PAM_WB_REMARK_DIRECT(pamh, ctrl, "NT_STATUS_PASSWORD_EXPIRED");
+ if (already_expired) {
+ *already_expired = true;
+ }
+ return true;
+ }
+
if ((next_change < 0) ||
- (next_change < now) ||
- (next_change > now + DAYS_TO_WARN_BEFORE_PWD_EXPIRES * SECONDS_PER_DAY)) {
- return False;
+ (next_change > now + warn_pwd_expire * SECONDS_PER_DAY)) {
+ return false;
}
- if ((localtime_r(&now, &tm_now) == NULL) ||
+ if ((localtime_r(&now, &tm_now) == NULL) ||
(localtime_r(&next_change, &tm_next_change) == NULL)) {
- return False;
+ return false;
}
- days = (tm_next_change.tm_yday+tm_next_change.tm_year*365) - (tm_now.tm_yday+tm_now.tm_year*365);
+ days = (tm_next_change.tm_yday+tm_next_change.tm_year*365) -
+ (tm_now.tm_yday+tm_now.tm_year*365);
if (days == 0) {
- _make_remark(pamh, ctrl, PAM_TEXT_INFO, "Your password expires today");
- return True;
- }
-
- if (days > 0 && days < DAYS_TO_WARN_BEFORE_PWD_EXPIRES) {
- _make_remark_format(pamh, ctrl, PAM_TEXT_INFO, "Your password will expire in %d %s",
- days, (days > 1) ? "days":"day");
- return True;
+ _make_remark(pamh, ctrl, PAM_TEXT_INFO,
+ "Your password expires today");
+ return true;
}
- return False;
+ if (days > 0 && days < warn_pwd_expire) {
+ _make_remark_format(pamh, ctrl, PAM_TEXT_INFO,
+ "Your password will expire in %d %s",
+ days, (days > 1) ? "days":"day");
+ return true;
+ }
+
+ return false;
}
-static void _pam_warn_password_expires_in_future(pam_handle_t *pamh, int ctrl, struct winbindd_response *response)
+/**
+ * Send a warning if the password expires in the near future
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param response The full authentication response structure.
+ * @param already_expired boolean, is the pwd already expired?
+ *
+ * @return void.
+ */
+
+static void _pam_warn_password_expiry(pam_handle_t *pamh,
+ int flags,
+ const struct winbindd_response *response,
+ int warn_pwd_expire,
+ bool *already_expired)
{
time_t now = time(NULL);
time_t next_change = 0;
+ if (already_expired) {
+ *already_expired = false;
+ }
+
/* accounts with ACB_PWNOEXP set never receive a warning */
if (response->data.auth.info3.acct_flags & ACB_PWNOEXP) {
return;
/* check if the info3 must change timestamp has been set */
next_change = response->data.auth.info3.pass_must_change_time;
- if (_pam_send_password_expiry_message(pamh, ctrl, next_change, now)) {
+ if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ warn_pwd_expire,
+ already_expired)) {
return;
}
/* now check for the global password policy */
+ /* good catch from Ralf Haferkamp: an expiry of "never" is translated
+ * to -1 */
if (response->data.auth.policy.expire <= 0) {
return;
}
- next_change = response->data.auth.info3.pass_last_set_time +
+ next_change = response->data.auth.info3.pass_last_set_time +
response->data.auth.policy.expire;
- if (_pam_send_password_expiry_message(pamh, ctrl, next_change, now)) {
+ if (_pam_send_password_expiry_message(pamh, flags, next_change, now,
+ warn_pwd_expire,
+ already_expired)) {
return;
}
#define IS_SID_STRING(name) (strncmp("S-", name, 2) == 0)
-static BOOL safe_append_string(char *dest,
- const char *src,
- int dest_buffer_size)
/**
- * Append a string, making sure not to overflow and to always return a NULL-terminated
- * string.
+ * Append a string, making sure not to overflow and to always return a
+ * NULL-terminated string.
*
* @param dest Destination string buffer (must already be NULL-terminated).
* @param src Source string buffer.
* @param dest_buffer_size Size of dest buffer in bytes.
*
- * @return False if dest buffer is not big enough (no bytes copied), True on success.
+ * @return false if dest buffer is not big enough (no bytes copied), true on
+ * success.
*/
+
+static bool safe_append_string(char *dest,
+ const char *src,
+ int dest_buffer_size)
{
int dest_length = strlen(dest);
int src_length = strlen(src);
- if ( dest_length + src_length + 1 > dest_buffer_size ) {
- return False;
+ if (dest_length + src_length + 1 > dest_buffer_size) {
+ return false;
}
memcpy(dest + dest_length, src, src_length + 1);
- return True;
+ return true;
}
-static BOOL winbind_name_to_sid_string(pam_handle_t *pamh,
- int ctrl,
- const char *user,
- const char *name,
- char *sid_list_buffer,
- int sid_list_buffer_size)
/**
* Convert a names into a SID string, appending it to a buffer.
*
* @param sid_list_buffer Where to append the string sid.
* @param sid_list_buffer Size of sid_list_buffer (in bytes).
*
- * @return False on failure, True on success.
+ * @return false on failure, true on success.
*/
+static bool winbind_name_to_sid_string(pam_handle_t *pamh,
+ int ctrl,
+ const char *user,
+ const char *name,
+ char *sid_list_buffer,
+ int sid_list_buffer_size)
{
const char* sid_string;
struct winbindd_response sid_response;
- /* lookup name? */
+ /* lookup name? */
if (IS_SID_STRING(name)) {
sid_string = name;
} else {
ZERO_STRUCT(sid_request);
ZERO_STRUCT(sid_response);
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "no sid given, looking up: %s\n", name);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "no sid given, looking up: %s\n", name);
/* fortunatly winbindd can handle non-separated names */
strncpy(sid_request.data.name.name, name,
sizeof(sid_request.data.name.name) - 1);
- if (pam_winbind_request_log(pamh, ctrl, WINBINDD_LOOKUPNAME, &sid_request, &sid_response, user)) {
- _pam_log(pamh, ctrl, LOG_INFO, "could not lookup name: %s\n", name);
- return False;
+ if (pam_winbind_request_log(pamh, ctrl, WINBINDD_LOOKUPNAME,
+ &sid_request, &sid_response,
+ user)) {
+ _pam_log(pamh, ctrl, LOG_INFO,
+ "could not lookup name: %s\n", name);
+ return false;
}
sid_string = sid_response.data.sid.sid;
}
- if (!safe_append_string(sid_list_buffer, sid_string, sid_list_buffer_size)) {
- return False;
+ if (!safe_append_string(sid_list_buffer, sid_string,
+ sid_list_buffer_size)) {
+ return false;
}
- return True;
+ return true;
}
-static BOOL winbind_name_list_to_sid_string_list(pam_handle_t *pamh,
- int ctrl,
- const char *user,
- const char *name_list,
- char *sid_list_buffer,
- int sid_list_buffer_size)
/**
* Convert a list of names into a list of sids.
*
* @param sid_list_buffer Where to put the list of string sids.
* @param sid_list_buffer Size of sid_list_buffer (in bytes).
*
- * @return False on failure, True on success.
+ * @return false on failure, true on success.
*/
+static bool winbind_name_list_to_sid_string_list(pam_handle_t *pamh,
+ int ctrl,
+ const char *user,
+ const char *name_list,
+ char *sid_list_buffer,
+ int sid_list_buffer_size)
{
- BOOL result = False;
+ bool result = false;
char *current_name = NULL;
const char *search_location;
const char *comma;
- if ( sid_list_buffer_size > 0 ) {
+ if (sid_list_buffer_size > 0) {
sid_list_buffer[0] = 0;
}
search_location = name_list;
- while ( (comma = strstr(search_location, ",")) != NULL ) {
- current_name = strndup(search_location, comma - search_location);
+ while ((comma = strstr(search_location, ",")) != NULL) {
+ current_name = strndup(search_location,
+ comma - search_location);
if (NULL == current_name) {
goto out;
}
- if (!winbind_name_to_sid_string(pamh, ctrl, user, current_name, sid_list_buffer, sid_list_buffer_size)) {
+ if (!winbind_name_to_sid_string(pamh, ctrl, user,
+ current_name,
+ sid_list_buffer,
+ sid_list_buffer_size)) {
goto out;
}
SAFE_FREE(current_name);
- if (!safe_append_string(sid_list_buffer, ",", sid_list_buffer_size)) {
+ if (!safe_append_string(sid_list_buffer, ",",
+ sid_list_buffer_size)) {
goto out;
}
search_location = comma + 1;
}
- if (!winbind_name_to_sid_string(pamh, ctrl, user, search_location, sid_list_buffer, sid_list_buffer_size)) {
+ if (!winbind_name_to_sid_string(pamh, ctrl, user, search_location,
+ sid_list_buffer,
+ sid_list_buffer_size)) {
goto out;
}
- result = True;
+ result = true;
out:
SAFE_FREE(current_name);
* @return void.
*/
-static void _pam_setup_krb5_env(pam_handle_t *pamh, int ctrl, const char *krb5ccname)
+static void _pam_setup_krb5_env(pam_handle_t *pamh,
+ int ctrl,
+ const char *krb5ccname)
{
char var[PATH_MAX];
int ret;
return;
}
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "request returned KRB5CCNAME: %s", krb5ccname);
-
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "request returned KRB5CCNAME: %s", krb5ccname);
+
if (snprintf(var, sizeof(var), "KRB5CCNAME=%s", krb5ccname) == -1) {
return;
}
-
+
ret = pam_putenv(pamh, var);
if (ret) {
- _pam_log(pamh, ctrl, LOG_ERR, "failed to set KRB5CCNAME to %s: %s",
- var, pam_strerror(pamh, ret));
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "failed to set KRB5CCNAME to %s: %s",
+ var, pam_strerror(pamh, ret));
}
-}
+}
/**
* Set string into the PAM stack.
* @return void.
*/
-static void _pam_set_data_string(pam_handle_t *pamh, int ctrl, const char *data_name, const char *value)
+static void _pam_set_data_string(pam_handle_t *pamh,
+ int ctrl,
+ const char *data_name,
+ const char *value)
{
int ret;
- if ( !data_name || !value || (strlen(data_name) == 0) || (strlen(value) == 0) ) {
+ if (!data_name || !value || (strlen(data_name) == 0) ||
+ (strlen(value) == 0)) {
return;
}
- ret = pam_set_data(pamh, data_name, (void *)strdup(value), _pam_winbind_cleanup_func);
+ ret = pam_set_data(pamh, data_name, (void *)strdup(value),
+ _pam_winbind_cleanup_func);
if (ret) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "Could not set data %s: %s\n",
- data_name, pam_strerror(pamh, ret));
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "Could not set data %s: %s\n",
+ data_name, pam_strerror(pamh, ret));
}
}
* @return void.
*/
-static void _pam_set_data_info3(pam_handle_t *pamh, int ctrl, struct winbindd_response *response)
+static void _pam_set_data_info3(pam_handle_t *pamh,
+ int ctrl,
+ struct winbindd_response *response)
{
- _pam_set_data_string(pamh, ctrl, PAM_WINBIND_HOMEDIR, response->data.auth.info3.home_dir);
- _pam_set_data_string(pamh, ctrl, PAM_WINBIND_LOGONSCRIPT, response->data.auth.info3.logon_script);
- _pam_set_data_string(pamh, ctrl, PAM_WINBIND_LOGONSERVER, response->data.auth.info3.logon_srv);
- _pam_set_data_string(pamh, ctrl, PAM_WINBIND_PROFILEPATH, response->data.auth.info3.profile_path);
+ _pam_set_data_string(pamh, ctrl, PAM_WINBIND_HOMEDIR,
+ response->data.auth.info3.home_dir);
+ _pam_set_data_string(pamh, ctrl, PAM_WINBIND_LOGONSCRIPT,
+ response->data.auth.info3.logon_script);
+ _pam_set_data_string(pamh, ctrl, PAM_WINBIND_LOGONSERVER,
+ response->data.auth.info3.logon_srv);
+ _pam_set_data_string(pamh, ctrl, PAM_WINBIND_PROFILEPATH,
+ response->data.auth.info3.profile_path);
}
/**
* @return void.
*/
-static void _pam_warn_logon_type(pam_handle_t *pamh, int ctrl, const char *username, uint32 info3_user_flgs)
+static void _pam_warn_logon_type(pam_handle_t *pamh,
+ int ctrl,
+ const char *username,
+ uint32_t info3_user_flgs)
{
/* inform about logon type */
if (PAM_WB_GRACE_LOGON(info3_user_flgs)) {
- _make_remark(pamh, ctrl, PAM_ERROR_MSG,
- "Grace login. Please change your password as soon you're online again");
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ "Grace login. "
+ "Please change your password as soon you're "
+ "online again");
_pam_log_debug(pamh, ctrl, LOG_DEBUG,
- "User %s logged on using grace logon\n", username);
+ "User %s logged on using grace logon\n",
+ username);
} else if (PAM_WB_CACHED_LOGON(info3_user_flgs)) {
- _make_remark(pamh, ctrl, PAM_ERROR_MSG,
- "Logging on using cached account. Network resources can be unavailable");
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ "Domain Controller unreachable, "
+ "using cached credentials instead. "
+ "Network resources may be unavailable");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "User %s logged on using cached credentials\n",
+ username);
+ }
+}
+
+/**
+ * Send PAM_ERROR_MSG for krb5 errors.
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param username User in PAM request.
+ * @param info3_user_flgs Info3 flags containing logon type bits.
+ *
+ * @return void.
+ */
+
+static void _pam_warn_krb5_failure(pam_handle_t *pamh,
+ int ctrl,
+ const char *username,
+ uint32_t info3_user_flgs)
+{
+ if (PAM_WB_KRB5_CLOCK_SKEW(info3_user_flgs)) {
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ "Failed to establish your Kerberos Ticket cache "
+ "due time differences\n"
+ "with the domain controller. "
+ "Please verify the system time.\n");
_pam_log_debug(pamh, ctrl, LOG_DEBUG,
- "User %s logged on using cached account\n", username);
+ "User %s: Clock skew when getting Krb5 TGT\n",
+ username);
}
}
if (response->data.auth.policy.min_length_password > 0) {
ret = snprintf(str+offset, str_size-offset,
- "must be at least %d characters; ",
- response->data.auth.policy.min_length_password);
+ "must be at least %d characters; ",
+ response->data.auth.policy.min_length_password);
if (ret == -1) {
goto failed;
}
offset += ret;
}
-
+
if (response->data.auth.policy.password_history > 0) {
ret = snprintf(str+offset, str_size-offset,
- "cannot repeat any of your previous %d passwords; ",
- response->data.auth.policy.password_history);
+ "cannot repeat any of your previous %d "
+ "passwords; ",
+ response->data.auth.policy.password_history);
if (ret == -1) {
goto failed;
}
offset += ret;
}
-
- if (response->data.auth.policy.password_properties & DOMAIN_PASSWORD_COMPLEX) {
+
+ if (response->data.auth.policy.password_properties &
+ DOMAIN_PASSWORD_COMPLEX) {
ret = snprintf(str+offset, str_size-offset,
- "must contain capitals, numerals or punctuation; "
- "and cannot contain your account or full name; ");
+ "must contain capitals, numerals "
+ "or punctuation; "
+ "and cannot contain your account "
+ "or full name; ");
if (ret == -1) {
goto failed;
}
offset += ret;
}
- ret = snprintf(str+offset, str_size-offset,
- "Please type a different password. "
- "Type a password which meets these requirements in both text boxes.");
+ ret = snprintf(str+offset, str_size-offset,
+ "Please type a different password. "
+ "Type a password which meets these requirements in "
+ "both text boxes.");
if (ret == -1) {
goto failed;
}
/* talk to winbindd */
static int winbind_auth_request(pam_handle_t * pamh,
- int ctrl,
- const char *user,
- const char *pass,
- const char *member,
+ int ctrl,
+ const char *user,
+ const char *pass,
+ const char *member,
const char *cctype,
+ const int warn_pwd_expire,
struct winbindd_response *p_response,
time_t *pwd_last_set,
char **user_ret)
struct winbindd_request request;
struct winbindd_response response;
int ret;
+ bool already_expired = false;
ZERO_STRUCT(request);
ZERO_STRUCT(response);
*pwd_last_set = 0;
}
- strncpy(request.data.auth.user, user,
+ strncpy(request.data.auth.user, user,
sizeof(request.data.auth.user)-1);
- strncpy(request.data.auth.pass, pass,
+ strncpy(request.data.auth.pass, pass,
sizeof(request.data.auth.pass)-1);
request.data.auth.krb5_cc_type[0] = '\0';
request.data.auth.uid = -1;
-
- request.flags = WBFLAG_PAM_INFO3_TEXT | WBFLAG_PAM_CONTACT_TRUSTDOM;
- if (ctrl & WINBIND_KRB5_AUTH) {
+ request.flags = WBFLAG_PAM_INFO3_TEXT | WBFLAG_PAM_GET_PWD_POLICY;
- struct passwd *pwd = NULL;
+ /* Krb5 auth always has to go against the KDC of the user's realm */
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "enabling krb5 login flag\n");
+ if (ctrl & WINBIND_KRB5_AUTH) {
+ request.flags |= WBFLAG_PAM_CONTACT_TRUSTDOM;
+ }
- request.flags |= WBFLAG_PAM_KRB5 | WBFLAG_PAM_FALLBACK_AFTER_KRB5;
+ if (ctrl & (WINBIND_KRB5_AUTH|WINBIND_CACHED_LOGIN)) {
+ struct passwd *pwd = NULL;
pwd = getpwnam(user);
if (pwd == NULL) {
request.data.auth.uid = pwd->pw_uid;
}
+ if (ctrl & WINBIND_KRB5_AUTH) {
+
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "enabling krb5 login flag\n");
+
+ request.flags |= WBFLAG_PAM_KRB5 |
+ WBFLAG_PAM_FALLBACK_AFTER_KRB5;
+ }
+
if (ctrl & WINBIND_CACHED_LOGIN) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "enabling cached login flag\n");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "enabling cached login flag\n");
request.flags |= WBFLAG_PAM_CACHED_LOGIN;
}
}
if (cctype != NULL) {
- strncpy(request.data.auth.krb5_cc_type, cctype,
+ strncpy(request.data.auth.krb5_cc_type, cctype,
sizeof(request.data.auth.krb5_cc_type) - 1);
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "enabling request for a %s krb5 ccache\n", cctype);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "enabling request for a %s krb5 ccache\n",
+ cctype);
}
request.data.auth.require_membership_of_sid[0] = '\0';
if (member != NULL) {
- if (!winbind_name_list_to_sid_string_list(pamh, ctrl, user, member,
+ if (!winbind_name_list_to_sid_string_list(pamh, ctrl, user,
+ member,
request.data.auth.require_membership_of_sid,
sizeof(request.data.auth.require_membership_of_sid))) {
- _pam_log_debug(pamh, ctrl, LOG_ERR, "failed to serialize membership of sid \"%s\"\n", member);
+ _pam_log_debug(pamh, ctrl, LOG_ERR,
+ "failed to serialize membership of sid "
+ "\"%s\"\n", member);
return PAM_AUTH_ERR;
}
}
- ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_PAM_AUTH, &request, &response, user);
+ ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_PAM_AUTH,
+ &request, &response, user);
if (pwd_last_set) {
*pwd_last_set = response.data.auth.info3.pass_last_set_time;
}
if (ret) {
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_PASSWORD_EXPIRED");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_PASSWORD_MUST_CHANGE");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_INVALID_WORKSTATION");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_INVALID_LOGON_HOURS");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_ACCOUNT_EXPIRED");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_ACCOUNT_DISABLED");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_ACCOUNT_LOCKED_OUT");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_NO_LOGON_SERVERS");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_PASSWORD_EXPIRED");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_PASSWORD_MUST_CHANGE");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_INVALID_WORKSTATION");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_INVALID_LOGON_HOURS");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_ACCOUNT_EXPIRED");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_ACCOUNT_DISABLED");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_ACCOUNT_LOCKED_OUT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_NO_LOGON_SERVERS");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_WRONG_PASSWORD");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_ACCESS_DENIED");
}
- /* handle the case where the auth was ok, but the password must expire right now */
- /* good catch from Ralf Haferkamp: an expiry of "never" is translated to -1 */
- if ( ! (response.data.auth.info3.acct_flags & ACB_PWNOEXP) &&
- ! (PAM_WB_GRACE_LOGON(response.data.auth.info3.user_flgs)) &&
- (response.data.auth.policy.expire > 0) &&
- (response.data.auth.info3.pass_last_set_time + response.data.auth.policy.expire < time(NULL))) {
-
- ret = PAM_AUTHTOK_EXPIRED;
-
- _pam_log_debug(pamh, ctrl, LOG_DEBUG,"Password has expired (Password was last set: %d, "
- "the policy says it should expire here %d (now it's: %d)\n",
- response.data.auth.info3.pass_last_set_time,
- response.data.auth.info3.pass_last_set_time + response.data.auth.policy.expire,
- time(NULL));
-
- PAM_WB_REMARK_DIRECT_RET(pamh, ctrl, "NT_STATUS_PASSWORD_EXPIRED");
+ if (ret == PAM_SUCCESS) {
- }
+ /* warn a user if the password is about to expire soon */
+ _pam_warn_password_expiry(pamh, ctrl, &response,
+ warn_pwd_expire,
+ &already_expired);
+
+ if (already_expired == true) {
+ SMB_TIME_T last_set;
+ last_set = response.data.auth.info3.pass_last_set_time;
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "Password has expired "
+ "(Password was last set: %lld, "
+ "the policy says it should expire here "
+ "%lld (now it's: %lu))\n",
+ (long long int)last_set,
+ (long long int)last_set +
+ response.data.auth.policy.expire,
+ time(NULL));
+
+ return PAM_AUTHTOK_EXPIRED;
+ }
- /* warn a user if the password is about to expire soon */
- _pam_warn_password_expires_in_future(pamh, ctrl, &response);
+ /* inform about logon type */
+ _pam_warn_logon_type(pamh, ctrl, user,
+ response.data.auth.info3.user_flgs);
- /* inform about logon type */
- _pam_warn_logon_type(pamh, ctrl, user, response.data.auth.info3.user_flgs);
+ /* inform about krb5 failures */
+ _pam_warn_krb5_failure(pamh, ctrl, user,
+ response.data.auth.info3.user_flgs);
- /* set some info3 info for other modules in the stack */
- _pam_set_data_info3(pamh, ctrl, &response);
+ /* set some info3 info for other modules in the stack */
+ _pam_set_data_info3(pamh, ctrl, &response);
- /* put krb5ccname into env */
- _pam_setup_krb5_env(pamh, ctrl, response.data.auth.krb5ccname);
+ /* put krb5ccname into env */
+ _pam_setup_krb5_env(pamh, ctrl, response.data.auth.krb5ccname);
- /* If winbindd returned a username, return the pointer to it here. */
- if (user_ret && response.extra_data.data) {
- /* We have to trust it's a null terminated string. */
- *user_ret = (char *)response.extra_data.data;
+ /* If winbindd returned a username, return the pointer to it
+ * here. */
+ if (user_ret && response.data.auth.unix_username[0]) {
+ /* We have to trust it's a null terminated string. */
+ *user_ret = strndup(response.data.auth.unix_username,
+ sizeof(response.data.auth.unix_username) - 1);
+ }
}
return ret;
/* talk to winbindd */
static int winbind_chauthtok_request(pam_handle_t * pamh,
int ctrl,
- const char *user,
+ const char *user,
const char *oldpass,
const char *newpass,
- time_t pwd_last_set)
+ time_t pwd_last_set)
{
struct winbindd_request request;
struct winbindd_response response;
ZERO_STRUCT(request);
ZERO_STRUCT(response);
- if (request.data.chauthtok.user == NULL) return -2;
+ if (request.data.chauthtok.user == NULL) {
+ return -2;
+ }
- strncpy(request.data.chauthtok.user, user,
+ strncpy(request.data.chauthtok.user, user,
sizeof(request.data.chauthtok.user) - 1);
if (oldpass != NULL) {
- strncpy(request.data.chauthtok.oldpass, oldpass,
+ strncpy(request.data.chauthtok.oldpass, oldpass,
sizeof(request.data.chauthtok.oldpass) - 1);
} else {
request.data.chauthtok.oldpass[0] = '\0';
}
-
+
if (newpass != NULL) {
- strncpy(request.data.chauthtok.newpass, newpass,
+ strncpy(request.data.chauthtok.newpass, newpass,
sizeof(request.data.chauthtok.newpass) - 1);
} else {
request.data.chauthtok.newpass[0] = '\0';
}
if (ctrl & WINBIND_KRB5_AUTH) {
- request.flags = WBFLAG_PAM_KRB5 | WBFLAG_PAM_CONTACT_TRUSTDOM;
+ request.flags = WBFLAG_PAM_KRB5 |
+ WBFLAG_PAM_CONTACT_TRUSTDOM;
}
- ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_PAM_CHAUTHTOK, &request, &response, user);
+ ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_PAM_CHAUTHTOK,
+ &request, &response, user);
if (ret == PAM_SUCCESS) {
return ret;
}
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_BACKUP_CONTROLLER");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_NO_LOGON_SERVERS");
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_ACCESS_DENIED");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_BACKUP_CONTROLLER");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_NO_LOGON_SERVERS");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_ACCESS_DENIED");
/* TODO: tell the min pwd length ? */
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_PWD_TOO_SHORT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_PWD_TOO_SHORT");
/* TODO: tell the minage ? */
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_PWD_TOO_RECENT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_PWD_TOO_RECENT");
/* TODO: tell the history length ? */
- PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response, "NT_STATUS_PWD_HISTORY_CONFLICT");
+ PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh, ctrl, response,
+ "NT_STATUS_PWD_HISTORY_CONFLICT");
- if (!strcasecmp(response.data.auth.nt_status_string, "NT_STATUS_PASSWORD_RESTRICTION")) {
+ if (!strcasecmp(response.data.auth.nt_status_string,
+ "NT_STATUS_PASSWORD_RESTRICTION")) {
char *pwd_restriction_string = NULL;
+ SMB_TIME_T min_pwd_age;
+ uint32_t reject_reason = response.data.auth.reject_reason;
+ min_pwd_age = response.data.auth.policy.min_passwordage;
/* FIXME: avoid to send multiple PAM messages after another */
- switch (response.data.auth.reject_reason) {
+ switch (reject_reason) {
case -1:
break;
- case REJECT_REASON_OTHER:
- if ((response.data.auth.policy.min_passwordage > 0) &&
- (pwd_last_set + response.data.auth.policy.min_passwordage > time(NULL))) {
- PAM_WB_REMARK_DIRECT(pamh, ctrl, "NT_STATUS_PWD_TOO_RECENT");
+ case SAMR_REJECT_OTHER:
+ if ((min_pwd_age > 0) &&
+ (pwd_last_set + min_pwd_age > time(NULL))) {
+ PAM_WB_REMARK_DIRECT(pamh, ctrl,
+ "NT_STATUS_PWD_TOO_RECENT");
}
break;
- case REJECT_REASON_TOO_SHORT:
- PAM_WB_REMARK_DIRECT(pamh, ctrl, "NT_STATUS_PWD_TOO_SHORT");
+ case SAMR_REJECT_TOO_SHORT:
+ PAM_WB_REMARK_DIRECT(pamh, ctrl,
+ "NT_STATUS_PWD_TOO_SHORT");
break;
- case REJECT_REASON_IN_HISTORY:
- PAM_WB_REMARK_DIRECT(pamh, ctrl, "NT_STATUS_PWD_HISTORY_CONFLICT");
+ case SAMR_REJECT_IN_HISTORY:
+ PAM_WB_REMARK_DIRECT(pamh, ctrl,
+ "NT_STATUS_PWD_HISTORY_CONFLICT");
break;
- case REJECT_REASON_NOT_COMPLEX:
- _make_remark(pamh, ctrl, PAM_ERROR_MSG, "Password does not meet complexity requirements");
+ case SAMR_REJECT_COMPLEXITY:
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ "Password does not meet "
+ "complexity requirements");
break;
default:
_pam_log_debug(pamh, ctrl, LOG_DEBUG,
- "unknown password change reject reason: %d",
- response.data.auth.reject_reason);
+ "unknown password change "
+ "reject reason: %d",
+ reject_reason);
break;
}
- pwd_restriction_string = _pam_compose_pwd_restriction_string(&response);
+ pwd_restriction_string =
+ _pam_compose_pwd_restriction_string(&response);
if (pwd_restriction_string) {
- _make_remark(pamh, ctrl, PAM_ERROR_MSG, pwd_restriction_string);
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ pwd_restriction_string);
SAFE_FREE(pwd_restriction_string);
}
}
* 0 = OK
* -1 = System error
*/
-static int valid_user(pam_handle_t *pamh, int ctrl, const char *user)
+static int valid_user(pam_handle_t *pamh,
+ int ctrl,
+ const char *user)
{
/* check not only if the user is available over NSS calls, also make
* sure it's really a winbind user, this is important when stacking PAM
strncpy(request.data.username, user,
sizeof(request.data.username) - 1);
- ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_GETPWNAM, &request, &response, user);
+ ret = pam_winbind_request_log(pamh, ctrl, WINBINDD_GETPWNAM,
+ &request, &response, user);
switch (ret) {
case PAM_USER_UNKNOWN:
* which authentication token are we getting?
*/
- authtok_flag = on(WINBIND__OLD_PASSWORD, ctrl) ? PAM_OLDAUTHTOK : PAM_AUTHTOK;
+ if (on(WINBIND__OLD_PASSWORD, ctrl)) {
+ authtok_flag = PAM_OLDAUTHTOK;
+ } else {
+ authtok_flag = PAM_AUTHTOK;
+ }
/*
* should we obtain the password from a PAM item ?
*/
- if (on(WINBIND_TRY_FIRST_PASS_ARG, ctrl) || on(WINBIND_USE_FIRST_PASS_ARG, ctrl)) {
+ if (on(WINBIND_TRY_FIRST_PASS_ARG, ctrl) ||
+ on(WINBIND_USE_FIRST_PASS_ARG, ctrl)) {
retval = _pam_get_item(pamh, authtok_flag, &item);
if (retval != PAM_SUCCESS) {
/* very strange. */
- _pam_log(pamh, ctrl, LOG_ALERT,
- "pam_get_item returned error to unix-read-password"
- );
+ _pam_log(pamh, ctrl, LOG_ALERT,
+ "pam_get_item returned error "
+ "to unix-read-password");
return retval;
} else if (item != NULL) { /* we have a password! */
*pass = item;
item = NULL;
- _pam_log(pamh, ctrl, LOG_DEBUG,
+ _pam_log(pamh, ctrl, LOG_DEBUG,
"pam_get_item returned a password");
return PAM_SUCCESS;
} else if (on(WINBIND_USE_FIRST_PASS_ARG, ctrl)) {
- return PAM_AUTHTOK_RECOVER_ERR; /* didn't work */
+ return PAM_AUTHTOK_RECOVER_ERR; /* didn't work */
} else if (on(WINBIND_USE_AUTHTOK_ARG, ctrl)
&& off(WINBIND__OLD_PASSWORD, ctrl)) {
return PAM_AUTHTOK_RECOVER_ERR;
if (comment != NULL && off(ctrl, WINBIND_SILENT)) {
pmsg[0] = &msg[0];
msg[0].msg_style = PAM_TEXT_INFO;
- msg[0].msg = CONST_DISCARD(char *, comment);
+ msg[0].msg = discard_const_p(char, comment);
i = 1;
} else {
i = 0;
pmsg[i] = &msg[i];
msg[i].msg_style = PAM_PROMPT_ECHO_OFF;
- msg[i++].msg = CONST_DISCARD(char *, prompt1);
+ msg[i++].msg = discard_const_p(char, prompt1);
replies = 1;
if (prompt2 != NULL) {
pmsg[i] = &msg[i];
msg[i].msg_style = PAM_PROMPT_ECHO_OFF;
- msg[i++].msg = CONST_DISCARD(char *, prompt2);
+ msg[i++].msg = discard_const_p(char, prompt2);
++replies;
}
/* so call the conversation expecting i responses */
resp = NULL;
retval = converse(pamh, i, pmsg, &resp);
-
- if (resp != NULL) {
-
- /* interpret the response */
-
- if (retval == PAM_SUCCESS) { /* a good conversation */
-
- token = x_strdup(resp[i - replies].resp);
- if (token != NULL) {
- if (replies == 2) {
- /* verify that password entered correctly */
- if (!resp[i - 1].resp
- || strcmp(token, resp[i - 1].resp)) {
- _pam_delete(token); /* mistyped */
- retval = PAM_AUTHTOK_RECOVER_ERR;
- _make_remark(pamh, ctrl, PAM_ERROR_MSG, MISTYPED_PASS);
- }
- }
- } else {
- _pam_log(pamh, ctrl, LOG_NOTICE, "could not recover authentication token");
- retval = PAM_AUTHTOK_RECOVER_ERR;
- }
-
+ if (resp == NULL) {
+ if (retval == PAM_SUCCESS) {
+ retval = PAM_AUTHTOK_RECOVER_ERR;
}
- /*
- * tidy up the conversation (resp_retcode) is ignored
- * -- what is it for anyway? AGM
- */
-
+ goto done;
+ }
+ if (retval != PAM_SUCCESS) {
_pam_drop_reply(resp, i);
+ goto done;
+ }
- } else {
- retval = (retval == PAM_SUCCESS)
- ? PAM_AUTHTOK_RECOVER_ERR : retval;
+ /* interpret the response */
+
+ token = x_strdup(resp[i - replies].resp);
+ if (!token) {
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "could not recover "
+ "authentication token");
+ retval = PAM_AUTHTOK_RECOVER_ERR;
+ goto done;
}
+
+ if (replies == 2) {
+ /* verify that password entered correctly */
+ if (!resp[i - 1].resp ||
+ strcmp(token, resp[i - 1].resp)) {
+ _pam_delete(token); /* mistyped */
+ retval = PAM_AUTHTOK_RECOVER_ERR;
+ _make_remark(pamh, ctrl, PAM_ERROR_MSG,
+ MISTYPED_PASS);
+ }
+ }
+
+ /*
+ * tidy up the conversation (resp_retcode) is ignored
+ * -- what is it for anyway? AGM
+ */
+ _pam_drop_reply(resp, i);
}
+ done:
if (retval != PAM_SUCCESS) {
_pam_log_debug(pamh, ctrl, LOG_DEBUG,
- "unable to obtain a password");
+ "unable to obtain a password");
return retval;
}
/* 'token' is the entered password */
/* we store this password as an item */
-
+
retval = pam_set_item(pamh, authtok_flag, token);
_pam_delete(token); /* clean it up */
- if (retval != PAM_SUCCESS ||
+ if (retval != PAM_SUCCESS ||
(retval = _pam_get_item(pamh, authtok_flag, &item)) != PAM_SUCCESS) {
-
+
_pam_log(pamh, ctrl, LOG_CRIT, "error manipulating password");
return retval;
-
+
}
*pass = item;
}
const char *get_conf_item_string(const pam_handle_t *pamh,
- int argc,
- const char **argv,
+ int argc,
+ const char **argv,
int ctrl,
dictionary *d,
- const char *item,
+ const char *item,
int config_flag)
{
int i = 0;
const char *parm_opt = NULL;
- char *key = NULL;
if (!(ctrl & config_flag)) {
goto out;
}
/* let the pam opt take precedence over the pam_winbind.conf option */
+ for (i=0; i<argc; i++) {
+
+ if ((strncmp(argv[i], item, strlen(item)) == 0)) {
+ char *p;
+
+ if ((p = strchr(argv[i], '=')) == NULL) {
+ _pam_log(pamh, ctrl, LOG_INFO,
+ "no \"=\" delimiter for \"%s\" found\n",
+ item);
+ goto out;
+ }
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "PAM config: %s '%s'\n", item, p+1);
+ return p + 1;
+ }
+ }
if (d != NULL) {
+ char *key = NULL;
if (!asprintf(&key, "global:%s", item)) {
goto out;
parm_opt = iniparser_getstr(d, key);
SAFE_FREE(key);
+
+ _pam_log_debug(pamh, ctrl, LOG_INFO, "CONFIG file: %s '%s'\n",
+ item, parm_opt);
+ }
+out:
+ return parm_opt;
+}
+
+int get_config_item_int(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d,
+ const char *item,
+ int config_flag)
+{
+ int i, parm_opt = -1;
+
+ if (!(ctrl & config_flag)) {
+ goto out;
}
- for ( i=0; i<argc; i++ ) {
+ /* let the pam opt take precedence over the pam_winbind.conf option */
+ for (i = 0; i < argc; i++) {
if ((strncmp(argv[i], item, strlen(item)) == 0)) {
char *p;
- if ( (p = strchr( argv[i], '=' )) == NULL) {
- _pam_log(pamh, ctrl, LOG_INFO, "no \"=\" delimiter for \"%s\" found\n", item);
+ if ((p = strchr(argv[i], '=')) == NULL) {
+ _pam_log(pamh, ctrl, LOG_INFO,
+ "no \"=\" delimiter for \"%s\" found\n",
+ item);
goto out;
}
- _pam_log_debug(pamh, ctrl, LOG_INFO, "PAM config: %s '%s'\n", item, p+1);
- return p + 1;
+ parm_opt = atoi(p + 1);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "PAM config: %s '%d'\n",
+ item, parm_opt);
+ return parm_opt;
}
}
if (d != NULL) {
- _pam_log_debug(pamh, ctrl, LOG_INFO, "CONFIG file: %s '%s'\n", item, parm_opt);
+ char *key = NULL;
+
+ if (!asprintf(&key, "global:%s", item)) {
+ goto out;
+ }
+
+ parm_opt = iniparser_getint(d, key, -1);
+ SAFE_FREE(key);
+
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "CONFIG file: %s '%d'\n",
+ item, parm_opt);
}
out:
return parm_opt;
}
-const char *get_krb5_cc_type_from_config(const pam_handle_t *pamh, int argc, const char **argv, int ctrl, dictionary *d)
+const char *get_krb5_cc_type_from_config(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d)
{
- return get_conf_item_string(pamh, argc, argv, ctrl, d, "krb5_ccache_type", WINBIND_KRB5_CCACHE_TYPE);
+ return get_conf_item_string(pamh, argc, argv, ctrl, d,
+ "krb5_ccache_type",
+ WINBIND_KRB5_CCACHE_TYPE);
}
-const char *get_member_from_config(const pam_handle_t *pamh, int argc, const char **argv, int ctrl, dictionary *d)
+const char *get_member_from_config(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d)
{
const char *ret = NULL;
- ret = get_conf_item_string(pamh, argc, argv, ctrl, d, "require_membership_of", WINBIND_REQUIRED_MEMBERSHIP);
+ ret = get_conf_item_string(pamh, argc, argv, ctrl, d,
+ "require_membership_of",
+ WINBIND_REQUIRED_MEMBERSHIP);
if (ret) {
return ret;
}
- return get_conf_item_string(pamh, argc, argv, ctrl, d, "require-membership-of", WINBIND_REQUIRED_MEMBERSHIP);
+ return get_conf_item_string(pamh, argc, argv, ctrl, d,
+ "require-membership-of",
+ WINBIND_REQUIRED_MEMBERSHIP);
+}
+
+int get_warn_pwd_expire_from_config(const pam_handle_t *pamh,
+ int argc,
+ const char **argv,
+ int ctrl,
+ dictionary *d)
+{
+ int ret;
+ ret = get_config_item_int(pamh, argc, argv, ctrl, d,
+ "warn_pwd_expire",
+ WINBIND_WARN_PWD_EXPIRE);
+ /* no or broken setting */
+ if (ret <= 0) {
+ return DEFAULT_DAYS_TO_WARN_BEFORE_PWD_EXPIRES;
+ }
+ return ret;
+}
+
+/**
+ * Retrieve the winbind separator.
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ *
+ * @return string separator character. NULL on failure.
+ */
+
+static char winbind_get_separator(pam_handle_t *pamh,
+ int ctrl)
+{
+ struct winbindd_request request;
+ struct winbindd_response response;
+
+ ZERO_STRUCT(request);
+ ZERO_STRUCT(response);
+
+ if (pam_winbind_request_log(pamh, ctrl, WINBINDD_INFO,
+ &request, &response, NULL)) {
+ return '\0';
+ }
+
+ return response.data.info.winbind_separator;
+}
+
+/**
+ * Convert a upn to a name.
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param upn USer UPN to be trabslated.
+ *
+ * @return converted name. NULL pointer on failure. Caller needs to free.
+ */
+
+static char* winbind_upn_to_username(pam_handle_t *pamh,
+ int ctrl,
+ const char *upn)
+{
+ struct winbindd_request req;
+ struct winbindd_response resp;
+ int retval;
+ char *account_name;
+ int account_name_len;
+ char sep;
+
+ /* This cannot work when the winbind separator = @ */
+
+ sep = winbind_get_separator(pamh, ctrl);
+ if (!sep || sep == '@') {
+ return NULL;
+ }
+
+ /* Convert the UPN to a SID */
+
+ ZERO_STRUCT(req);
+ ZERO_STRUCT(resp);
+
+ strncpy(req.data.name.dom_name, "",
+ sizeof(req.data.name.dom_name) - 1);
+ strncpy(req.data.name.name, upn,
+ sizeof(req.data.name.name) - 1);
+ retval = pam_winbind_request_log(pamh, ctrl, WINBINDD_LOOKUPNAME,
+ &req, &resp, upn);
+ if (retval != PAM_SUCCESS) {
+ return NULL;
+ }
+
+ /* Convert the the SID back to the sAMAccountName */
+
+ ZERO_STRUCT(req);
+ strncpy(req.data.sid, resp.data.sid.sid, sizeof(req.data.sid)-1);
+ ZERO_STRUCT(resp);
+ retval = pam_winbind_request_log(pamh, ctrl, WINBINDD_LOOKUPSID,
+ &req, &resp, upn);
+ if (retval != PAM_SUCCESS) {
+ return NULL;
+ }
+
+ account_name_len = asprintf(&account_name, "%s\\%s",
+ resp.data.name.dom_name,
+ resp.data.name.name);
+
+ return account_name;
}
PAM_EXTERN
const char *password;
const char *member = NULL;
const char *cctype = NULL;
+ int warn_pwd_expire;
int retval = PAM_AUTH_ERR;
dictionary *d = NULL;
char *username_ret = NULL;
char *new_authtok_required = NULL;
+ char *real_username = NULL;
/* parse arguments */
int ctrl = _pam_parse(pamh, flags, argc, argv, &d);
/* Get the username */
retval = pam_get_user(pamh, &username, NULL);
if ((retval != PAM_SUCCESS) || (!username)) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "can not get the username");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "can not get the username");
retval = PAM_SERVICE_ERR;
goto out;
}
- retval = _winbind_read_password(pamh, ctrl, NULL,
+
+#if defined(AIX)
+ /* Decode the user name since AIX does not support logn user
+ names by default. The name is encoded as _#uid. */
+
+ if (username[0] == '_') {
+ uid_t id = atoi(&username[1]);
+ struct passwd *pw = NULL;
+
+ if ((id!=0) && ((pw = getpwuid(id)) != NULL)) {
+ real_username = strdup(pw->pw_name);
+ }
+ }
+#endif
+
+ if (!real_username) {
+ /* Just making a copy of the username we got from PAM */
+ if ((real_username = strdup(username)) == NULL) {
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "memory allocation failure when copying "
+ "username");
+ retval = PAM_SERVICE_ERR;
+ goto out;
+ }
+ }
+
+ /* Maybe this was a UPN */
+
+ if (strchr(real_username, '@') != NULL) {
+ char *samaccountname = NULL;
+
+ samaccountname = winbind_upn_to_username(pamh, ctrl,
+ real_username);
+ if (samaccountname) {
+ free(real_username);
+ real_username = samaccountname;
+ }
+ }
+
+ retval = _winbind_read_password(pamh, ctrl, NULL,
"Password: ", NULL,
&password);
if (retval != PAM_SUCCESS) {
- _pam_log(pamh, ctrl, LOG_ERR, "Could not retrieve user's password");
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "Could not retrieve user's password");
retval = PAM_AUTHTOK_ERR;
goto out;
}
/* Let's not give too much away in the log file */
#ifdef DEBUG_PASSWORD
- _pam_log_debug(pamh, ctrl, LOG_INFO, "Verify user '%s' with password '%s'",
- username, password);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "Verify user '%s' with password '%s'",
+ real_username, password);
#else
- _pam_log_debug(pamh, ctrl, LOG_INFO, "Verify user '%s'", username);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "Verify user '%s'", real_username);
#endif
member = get_member_from_config(pamh, argc, argv, ctrl, d);
cctype = get_krb5_cc_type_from_config(pamh, argc, argv, ctrl, d);
+ warn_pwd_expire = get_warn_pwd_expire_from_config(pamh, argc, argv,
+ ctrl, d);
+
/* Now use the username to look up password */
- retval = winbind_auth_request(pamh, ctrl, username, password, member,
- cctype, NULL, NULL, &username_ret);
+ retval = winbind_auth_request(pamh, ctrl, real_username, password,
+ member, cctype, warn_pwd_expire, NULL,
+ NULL, &username_ret);
if (retval == PAM_NEW_AUTHTOK_REQD ||
retval == PAM_AUTHTOK_EXPIRED) {
+ char *new_authtok_required_during_auth = NULL;
+
if (!asprintf(&new_authtok_required, "%d", retval)) {
retval = PAM_BUF_ERR;
goto out;
}
- pam_set_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD, new_authtok_required, _pam_winbind_cleanup_func);
+ pam_set_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD,
+ new_authtok_required,
+ _pam_winbind_cleanup_func);
retval = PAM_SUCCESS;
+
+ if (!asprintf(&new_authtok_required_during_auth, "%d", true)) {
+ retval = PAM_BUF_ERR;
+ goto out;
+ }
+
+ pam_set_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH,
+ new_authtok_required_during_auth,
+ _pam_winbind_cleanup_func);
+
goto out;
}
out:
if (username_ret) {
pam_set_item (pamh, PAM_USER, username_ret);
- _pam_log_debug(pamh, ctrl, LOG_INFO, "Returned user was '%s'", username_ret);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "Returned user was '%s'", username_ret);
free(username_ret);
}
+ if (real_username) {
+ free(real_username);
+ }
+
if (d) {
iniparser_freedict(d);
}
ret = pam_sm_close_session(pamh, flags, argc, argv);
break;
case PAM_REFRESH_CRED:
- _pam_log_debug(pamh, ctrl, LOG_WARNING, "PAM_REFRESH_CRED not implemented");
+ _pam_log_debug(pamh, ctrl, LOG_WARNING,
+ "PAM_REFRESH_CRED not implemented");
ret = PAM_SUCCESS;
break;
case PAM_REINITIALIZE_CRED:
- _pam_log_debug(pamh, ctrl, LOG_WARNING, "PAM_REINITIALIZE_CRED not implemented");
+ _pam_log_debug(pamh, ctrl, LOG_WARNING,
+ "PAM_REINITIALIZE_CRED not implemented");
ret = PAM_SUCCESS;
break;
case PAM_ESTABLISH_CRED:
- _pam_log_debug(pamh, ctrl, LOG_WARNING, "PAM_ESTABLISH_CRED not implemented");
+ _pam_log_debug(pamh, ctrl, LOG_WARNING,
+ "PAM_ESTABLISH_CRED not implemented");
ret = PAM_SUCCESS;
break;
default:
}
_PAM_LOG_FUNCTION_LEAVE("pam_sm_setcred", pamh, ctrl, ret);
-
+
return ret;
}
/*
- * Account management. We want to verify that the account exists
+ * Account management. We want to verify that the account exists
* before returning PAM_SUCCESS
*/
PAM_EXTERN
/* Get the username */
ret = pam_get_user(pamh, &username, NULL);
if ((ret != PAM_SUCCESS) || (!username)) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG,"can not get the username");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "can not get the username");
ret = PAM_SERVICE_ERR;
goto out;
}
goto out;
case 1:
/* the user does not exist */
- _pam_log_debug(pamh, ctrl, LOG_NOTICE, "user '%s' not found", username);
+ _pam_log_debug(pamh, ctrl, LOG_NOTICE, "user '%s' not found",
+ username);
if (ctrl & WINBIND_UNKNOWN_OK_ARG) {
ret = PAM_IGNORE;
goto out;
ret = PAM_USER_UNKNOWN;
goto out;
case 0:
- pam_get_data( pamh, PAM_WINBIND_NEW_AUTHTOK_REQD, (const void **)&tmp);
+ pam_get_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD,
+ (const void **)&tmp);
if (tmp != NULL) {
ret = atoi((const char *)tmp);
switch (ret) {
case PAM_AUTHTOK_EXPIRED:
/* fall through, since new token is required in this case */
case PAM_NEW_AUTHTOK_REQD:
- _pam_log(pamh, ctrl, LOG_WARNING, "pam_sm_acct_mgmt success but %s is set",
+ _pam_log(pamh, ctrl, LOG_WARNING,
+ "pam_sm_acct_mgmt success but %s is set",
PAM_WINBIND_NEW_AUTHTOK_REQD);
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' needs new password", username);
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' needs new password",
+ username);
/* PAM_AUTHTOKEN_REQD does not exist, but is documented in the manpage */
ret = PAM_NEW_AUTHTOK_REQD;
goto out;
default:
- _pam_log(pamh, ctrl, LOG_WARNING, "pam_sm_acct_mgmt success");
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' granted access", username);
+ _pam_log(pamh, ctrl, LOG_WARNING,
+ "pam_sm_acct_mgmt success");
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' granted access", username);
ret = PAM_SUCCESS;
goto out;
}
}
/* Otherwise, the authentication looked good */
- _pam_log(pamh, ctrl, LOG_NOTICE, "user '%s' granted access", username);
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user '%s' granted access", username);
ret = PAM_SUCCESS;
goto out;
default:
/* we don't know anything about this return value */
- _pam_log(pamh, ctrl, LOG_ERR, "internal module error (ret = %d, user = '%s')",
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "internal module error (ret = %d, user = '%s')",
ret, username);
ret = PAM_SERVICE_ERR;
goto out;
}
_PAM_LOG_FUNCTION_LEAVE("pam_sm_acct_mgmt", pamh, ctrl, ret);
-
+
return ret;
}
}
_PAM_LOG_FUNCTION_LEAVE("pam_sm_open_session", pamh, ctrl, ret);
-
+
return ret;
}
retval = pam_get_user(pamh, &user, "Username: ");
if (retval) {
- _pam_log(pamh, ctrl, LOG_ERR, "could not identify user");
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "could not identify user");
goto out;
}
if (user == NULL) {
- _pam_log(pamh, ctrl, LOG_ERR, "username was NULL!");
+ _pam_log(pamh, ctrl, LOG_ERR,
+ "username was NULL!");
retval = PAM_USER_UNKNOWN;
goto out;
}
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "username [%s] obtained", user);
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "username [%s] obtained", user);
ccname = pam_getenv(pamh, "KRB5CCNAME");
if (ccname == NULL) {
- _pam_log_debug(pamh, ctrl, LOG_DEBUG, "user has no KRB5CCNAME environment");
+ _pam_log_debug(pamh, ctrl, LOG_DEBUG,
+ "user has no KRB5CCNAME environment");
}
strncpy(request.data.logoff.user, user,
}
request.data.logoff.uid = pwd->pw_uid;
- request.flags = WBFLAG_PAM_KRB5 | WBFLAG_PAM_CONTACT_TRUSTDOM;
+ request.flags = WBFLAG_PAM_KRB5 |
+ WBFLAG_PAM_CONTACT_TRUSTDOM;
- retval = pam_winbind_request_log(pamh, ctrl, WINBINDD_PAM_LOGOFF, &request, &response, user);
+ retval = pam_winbind_request_log(pamh, ctrl,
+ WINBINDD_PAM_LOGOFF,
+ &request, &response, user);
}
out:
}
_PAM_LOG_FUNCTION_LEAVE("pam_sm_close_session", pamh, ctrl, retval);
-
+
return retval;
}
+/**
+ * evaluate whether we need to re-authenticate with kerberos after a
+ * password change
+ *
+ * @param pamh PAM handle
+ * @param ctrl PAM winbind options.
+ * @param user The username
+ *
+ * @return boolean Returns true if required, false if not.
+ */
+
+static bool _pam_require_krb5_auth_after_chauthtok(pam_handle_t *pamh,
+ int ctrl,
+ const char *user)
+{
+
+ /* Make sure that we only do this if a) the chauthtok got initiated
+ * during a logon attempt (authenticate->acct_mgmt->chauthtok) b) any
+ * later password change via the "passwd" command if done by the user
+ * itself */
+ char *new_authtok_reqd_during_auth = NULL;
+ struct passwd *pwd = NULL;
-PAM_EXTERN
+ if (!(ctrl & WINBIND_KRB5_AUTH)) {
+ return false;
+ }
+
+ _pam_get_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH,
+ &new_authtok_reqd_during_auth);
+ pam_set_data(pamh, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH,
+ NULL, NULL);
+
+ if (new_authtok_reqd_during_auth) {
+ return true;
+ }
+
+ pwd = getpwnam(user);
+ if (!pwd) {
+ return false;
+ }
+
+ if (getuid() == pwd->pw_uid) {
+ return true;
+ }
+
+ return false;
+}
+
+
+PAM_EXTERN
int pam_sm_chauthtok(pam_handle_t * pamh, int flags,
int argc, const char **argv)
{
/* </DO NOT free() THESE> */
char *Announce;
-
+
int retry = 0;
dictionary *d = NULL;
char *username_ret = NULL;
default:
break;
}
-
+
/*
* obtain and verify the current password (OLDAUTHTOK) for
* the user.
if (flags & PAM_PRELIM_CHECK) {
time_t pwdlastset_prelim = 0;
-
+
/* instruct user what is happening */
#define greeting "Changing password for "
Announce = (char *) malloc(sizeof(greeting) + strlen(user));
if (Announce == NULL) {
- _pam_log(pamh, ctrl, LOG_CRIT, "password - out of memory");
+ _pam_log(pamh, ctrl, LOG_CRIT,
+ "password - out of memory");
ret = PAM_BUF_ERR;
goto out;
}
(void) strcpy(Announce, greeting);
(void) strcpy(Announce + sizeof(greeting) - 1, user);
#undef greeting
-
+
lctrl = ctrl | WINBIND__OLD_PASSWORD;
ret = _winbind_read_password(pamh, lctrl,
Announce,
NULL,
(const char **) &pass_old);
if (ret != PAM_SUCCESS) {
- _pam_log(pamh, ctrl, LOG_NOTICE, "password - (old) token not obtained");
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "password - (old) token not obtained");
goto out;
}
- /* We don't need krb5 env set for password change test. */
- ctrl &= ~WINBIND_KRB5_AUTH;
-
/* verify that this is the password for this user */
-
+
ret = winbind_auth_request(pamh, ctrl, user, pass_old,
- NULL, NULL, &response, &pwdlastset_prelim, NULL);
+ NULL, NULL, 0, &response,
+ &pwdlastset_prelim, NULL);
- if (ret != PAM_ACCT_EXPIRED &&
+ if (ret != PAM_ACCT_EXPIRED &&
ret != PAM_AUTHTOK_EXPIRED &&
ret != PAM_NEW_AUTHTOK_REQD &&
ret != PAM_SUCCESS) {
pass_old = NULL;
goto out;
}
-
- pam_set_data(pamh, PAM_WINBIND_PWD_LAST_SET, (void *)pwdlastset_prelim, NULL);
- ret = pam_set_item(pamh, PAM_OLDAUTHTOK, (const void *) pass_old);
+ pam_set_data(pamh, PAM_WINBIND_PWD_LAST_SET,
+ (void *)pwdlastset_prelim, NULL);
+
+ ret = pam_set_item(pamh, PAM_OLDAUTHTOK,
+ (const void *) pass_old);
pass_old = NULL;
if (ret != PAM_SUCCESS) {
- _pam_log(pamh, ctrl, LOG_CRIT, "failed to set PAM_OLDAUTHTOK");
+ _pam_log(pamh, ctrl, LOG_CRIT,
+ "failed to set PAM_OLDAUTHTOK");
}
} else if (flags & PAM_UPDATE_AUTHTOK) {
-
+
time_t pwdlastset_update = 0;
-
+
/*
* obtain the proposed password
*/
-
+
/*
- * get the old token back.
+ * get the old token back.
*/
-
+
ret = _pam_get_item(pamh, PAM_OLDAUTHTOK, &pass_old);
-
+
if (ret != PAM_SUCCESS) {
- _pam_log(pamh, ctrl, LOG_NOTICE, "user not authenticated");
+ _pam_log(pamh, ctrl, LOG_NOTICE,
+ "user not authenticated");
goto out;
}
-
+
lctrl = ctrl & ~WINBIND_TRY_FIRST_PASS_ARG;
-
+
if (on(WINBIND_USE_AUTHTOK_ARG, lctrl)) {
lctrl |= WINBIND_USE_FIRST_PASS_ARG;
}
* use_authtok is to force the use of a previously entered
* password -- needed for pluggable password strength checking
*/
-
+
ret = _winbind_read_password(pamh, lctrl,
- NULL,
- "Enter new NT password: ",
- "Retype new NT password: ",
- (const char **) &pass_new);
-
+ NULL,
+ "Enter new NT password: ",
+ "Retype new NT password: ",
+ (const char **)&pass_new);
+
if (ret != PAM_SUCCESS) {
- _pam_log_debug(pamh, ctrl, LOG_ALERT
- ,"password - new password not obtained");
+ _pam_log_debug(pamh, ctrl, LOG_ALERT,
+ "password - "
+ "new password not obtained");
pass_old = NULL;/* tidy up */
goto out;
}
* propose as their new password. Verify that the new
* password is acceptable.
*/
-
+
if (pass_new[0] == '\0') {/* "\0" password = NULL */
pass_new = NULL;
}
}
-
+
/*
* By reaching here we have approved the passwords and must now
* rebuild the password database file.
*/
- _pam_get_data( pamh, PAM_WINBIND_PWD_LAST_SET,
- &pwdlastset_update);
+ _pam_get_data(pamh, PAM_WINBIND_PWD_LAST_SET,
+ &pwdlastset_update);
- ret = winbind_chauthtok_request(pamh, ctrl, user, pass_old, pass_new, pwdlastset_update);
+ ret = winbind_chauthtok_request(pamh, ctrl, user, pass_old,
+ pass_new, pwdlastset_update);
if (ret) {
_pam_overwrite(pass_new);
_pam_overwrite(pass_old);
goto out;
}
- /* just in case we need krb5 creds after a password change over msrpc */
+ if (_pam_require_krb5_auth_after_chauthtok(pamh, ctrl, user)) {
- if (ctrl & WINBIND_KRB5_AUTH) {
+ const char *member = NULL;
+ const char *cctype = NULL;
+ int warn_pwd_expire;
+
+ member = get_member_from_config(pamh, argc, argv,
+ ctrl, d);
+ cctype = get_krb5_cc_type_from_config(pamh, argc, argv,
+ ctrl, d);
+ warn_pwd_expire = get_warn_pwd_expire_from_config(pamh,
+ argc,
+ argv,
+ ctrl,
+ d);
- const char *member = get_member_from_config(pamh, argc, argv, ctrl, d);
- const char *cctype = get_krb5_cc_type_from_config(pamh, argc, argv, ctrl, d);
ret = winbind_auth_request(pamh, ctrl, user, pass_new,
- member, cctype, &response, NULL, &username_ret);
+ member, cctype, 0, &response,
+ NULL, &username_ret);
_pam_overwrite(pass_new);
_pam_overwrite(pass_old);
pass_old = pass_new = NULL;
if (ret == PAM_SUCCESS) {
-
- /* set some info3 info for other modules in the stack */
+
+ /* warn a user if the password is about to
+ * expire soon */
+ _pam_warn_password_expiry(pamh, ctrl, &response,
+ warn_pwd_expire,
+ NULL);
+
+ /* set some info3 info for other modules in the
+ * stack */
_pam_set_data_info3(pamh, ctrl, &response);
/* put krb5ccname into env */
- _pam_setup_krb5_env(pamh, ctrl, response.data.auth.krb5ccname);
+ _pam_setup_krb5_env(pamh, ctrl,
+ response.data.auth.krb5ccname);
if (username_ret) {
- pam_set_item (pamh, PAM_USER, username_ret);
- _pam_log_debug(pamh, ctrl, LOG_INFO, "Returned user was '%s'", username_ret);
+ pam_set_item(pamh, PAM_USER,
+ username_ret);
+ _pam_log_debug(pamh, ctrl, LOG_INFO,
+ "Returned user was '%s'",
+ username_ret);
free(username_ret);
}
}
}
/* Deal with offline errors. */
- PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response, "NT_STATUS_NO_LOGON_SERVERS");
- PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
- PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response, "NT_STATUS_ACCESS_DENIED");
+ PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response,
+ "NT_STATUS_NO_LOGON_SERVERS");
+ PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response,
+ "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
+ PAM_WB_REMARK_CHECK_RESPONSE(pamh, ctrl, response,
+ "NT_STATUS_ACCESS_DENIED");
_PAM_LOG_FUNCTION_LEAVE("pam_sm_chauthtok", pamh, ctrl, ret);
-
+
return ret;
}
* Copyright (c) Andrew G. Morgan 1996-8.
* Copyright (c) Alex O. Yuriev, 1996.
* Copyright (c) Cristian Gafton 1996.
- * Copyright (C) Elliot Lee <sopwith@redhat.com> 1996, Red Hat Software.
+ * Copyright (C) Elliot Lee <sopwith@redhat.com> 1996, Red Hat Software.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
git.samba.org / ira / wip.git / blobdiff