+++ /dev/null
-/*
- Unix SMB/CIFS implementation.
- Password and authentication handling
- Copyright (C) Andrew Bartlett 2001
- Copyright (C) Jeremy Allison 2001
- Copyright (C) Simo Sorce 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 "auth/auth.h"
-#include "auth/ntlm/auth_proto.h"
-#include "system/passwd.h" /* needed by some systems for struct passwd */
-#include "lib/socket/socket.h"
-#include "lib/tsocket/tsocket.h"
-#include "../libcli/auth/pam_errors.h"
-#include "param/param.h"
-#include "lib/util/tevent_ntstatus.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_AUTH
-
-_PUBLIC_ NTSTATUS auth4_unix_init(TALLOC_CTX *);
-
-/* TODO: look at how to best fill in parms retrieveing a struct passwd info
- * except in case USER_INFO_DONT_CHECK_UNIX_ACCOUNT is set
- */
-static NTSTATUS authunix_make_user_info_dc(TALLOC_CTX *mem_ctx,
- const char *netbios_name,
- const struct auth_usersupplied_info *user_info,
- struct passwd *pwd,
- struct auth_user_info_dc **_user_info_dc)
-{
- struct auth_user_info_dc *user_info_dc;
- struct auth_user_info *info;
- NTSTATUS status;
-
- /* This is a real, real hack */
- if (pwd->pw_uid == 0) {
- status = auth_system_user_info_dc(mem_ctx, netbios_name, &user_info_dc);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
- NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
-
- info->account_name = talloc_steal(info, pwd->pw_name);
- NT_STATUS_HAVE_NO_MEMORY(info->account_name);
-
- info->domain_name = talloc_strdup(info, "unix");
- NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
- } else {
- user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
- NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
-
- user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
- NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
-
- info->authenticated = true;
-
- info->account_name = talloc_steal(info, pwd->pw_name);
- NT_STATUS_HAVE_NO_MEMORY(info->account_name);
-
- info->domain_name = talloc_strdup(info, "unix");
- NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
-
- /* This isn't in any way correct.. */
- user_info_dc->num_sids = 0;
- user_info_dc->sids = NULL;
- }
- user_info_dc->user_session_key = data_blob(NULL,0);
- user_info_dc->lm_session_key = data_blob(NULL,0);
-
- info->full_name = talloc_steal(info, pwd->pw_gecos);
- NT_STATUS_HAVE_NO_MEMORY(info->full_name);
- info->logon_script = talloc_strdup(info, "");
- NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
- info->profile_path = talloc_strdup(info, "");
- NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
- info->home_directory = talloc_strdup(info, "");
- NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
- info->home_drive = talloc_strdup(info, "");
- NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
-
- info->last_logon = 0;
- info->last_logoff = 0;
- info->acct_expiry = 0;
- info->last_password_change = 0;
- info->allow_password_change = 0;
- info->force_password_change = 0;
- info->logon_count = 0;
- info->bad_password_count = 0;
- info->acct_flags = 0;
-
- *_user_info_dc = user_info_dc;
-
- return NT_STATUS_OK;
-}
-
-static NTSTATUS talloc_getpwnam(TALLOC_CTX *ctx, const char *username, struct passwd **pws)
-{
- struct passwd *ret;
- struct passwd *from;
-
- *pws = NULL;
-
- ret = talloc(ctx, struct passwd);
- NT_STATUS_HAVE_NO_MEMORY(ret);
-
- from = getpwnam(username);
- if (!from) {
- return NT_STATUS_NO_SUCH_USER;
- }
-
- ret->pw_name = talloc_strdup(ctx, from->pw_name);
- NT_STATUS_HAVE_NO_MEMORY(ret->pw_name);
-
- ret->pw_passwd = talloc_strdup(ctx, from->pw_passwd);
- NT_STATUS_HAVE_NO_MEMORY(ret->pw_passwd);
-
- ret->pw_uid = from->pw_uid;
- ret->pw_gid = from->pw_gid;
- ret->pw_gecos = talloc_strdup(ctx, from->pw_gecos);
- NT_STATUS_HAVE_NO_MEMORY(ret->pw_gecos);
-
- ret->pw_dir = talloc_strdup(ctx, from->pw_dir);
- NT_STATUS_HAVE_NO_MEMORY(ret->pw_dir);
-
- ret->pw_shell = talloc_strdup(ctx, from->pw_shell);
- NT_STATUS_HAVE_NO_MEMORY(ret->pw_shell);
-
- *pws = ret;
-
- return NT_STATUS_OK;
-}
-
-
-#ifdef HAVE_SECURITY_PAM_APPL_H
-#include <security/pam_appl.h>
-
-struct smb_pam_user_info {
- const char *account_name;
- const char *plaintext_password;
-};
-
-#define COPY_STRING(s) (s) ? strdup(s) : NULL
-
-/*
- * Check user password
- * Currently it uses PAM only and fails on systems without PAM
- * Samba3 code located in pass_check.c is to ugly to be used directly it will
- * need major rework that's why pass_check.c is still there.
-*/
-
-static int smb_pam_conv(int num_msg, const struct pam_message **msg,
- struct pam_response **reply, void *appdata_ptr)
-{
- struct smb_pam_user_info *info = (struct smb_pam_user_info *)appdata_ptr;
- int num;
-
- if (num_msg <= 0) {
- *reply = NULL;
- return PAM_CONV_ERR;
- }
-
- /*
- * Apparantly HPUX has a buggy PAM that doesn't support the
- * data pointer. Fail if this is the case. JRA.
- */
-
- if (info == NULL) {
- *reply = NULL;
- return PAM_CONV_ERR;
- }
-
- /*
- * PAM frees memory in reply messages by itself
- * so use malloc instead of talloc here.
- */
- *reply = malloc_array_p(struct pam_response, num_msg);
- if (*reply == NULL) {
- return PAM_CONV_ERR;
- }
-
- for (num = 0; num < num_msg; num++) {
- switch (msg[num]->msg_style) {
- case PAM_PROMPT_ECHO_ON:
- (*reply)[num].resp_retcode = PAM_SUCCESS;
- (*reply)[num].resp = COPY_STRING(info->account_name);
- break;
-
- case PAM_PROMPT_ECHO_OFF:
- (*reply)[num].resp_retcode = PAM_SUCCESS;
- (*reply)[num].resp = COPY_STRING(info->plaintext_password);
- break;
-
- case PAM_TEXT_INFO:
- (*reply)[num].resp_retcode = PAM_SUCCESS;
- (*reply)[num].resp = NULL;
- DEBUG(4,("PAM Info message in conversation function: %s\n", (msg[num]->msg)));
- break;
-
- case PAM_ERROR_MSG:
- (*reply)[num].resp_retcode = PAM_SUCCESS;
- (*reply)[num].resp = NULL;
- DEBUG(4,("PAM Error message in conversation function: %s\n", (msg[num]->msg)));
- break;
-
- default:
- while (num > 0) {
- SAFE_FREE((*reply)[num-1].resp);
- num--;
- }
- SAFE_FREE(*reply);
- *reply = NULL;
- DEBUG(1,("Error: PAM subsystme sent an UNKNOWN message type to the conversation function!\n"));
- return PAM_CONV_ERR;
- }
- }
-
- return PAM_SUCCESS;
-}
-
-/*
- * Start PAM authentication for specified account
- */
-
-static NTSTATUS smb_pam_start(pam_handle_t **pamh, const char *account_name, const char *remote_host, struct pam_conv *pconv)
-{
- int pam_error;
-
- if (account_name == NULL || remote_host == NULL) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- DEBUG(4,("smb_pam_start: PAM: Init user: %s\n", account_name));
-
- pam_error = pam_start("samba", account_name, pconv, pamh);
- if (pam_error != PAM_SUCCESS) {
- /* no valid pamh here, can we reliably call pam_strerror ? */
- DEBUG(4,("smb_pam_start: pam_start failed!\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
-#ifdef PAM_RHOST
- DEBUG(4,("smb_pam_start: PAM: setting rhost to: %s\n", remote_host));
- pam_error = pam_set_item(*pamh, PAM_RHOST, remote_host);
- if (pam_error != PAM_SUCCESS) {
- NTSTATUS nt_status;
-
- DEBUG(4,("smb_pam_start: setting rhost failed with error: %s\n",
- pam_strerror(*pamh, pam_error)));
- nt_status = pam_to_nt_status(pam_error);
-
- pam_error = pam_end(*pamh, 0);
- if (pam_error != PAM_SUCCESS) {
- /* no valid pamh here, can we reliably call pam_strerror ? */
- DEBUG(4,("smb_pam_start: clean up failed, pam_end gave error %d.\n",
- pam_error));
- return pam_to_nt_status(pam_error);
- }
- return nt_status;
- }
-#endif
-#ifdef PAM_TTY
- DEBUG(4,("smb_pam_start: PAM: setting tty\n"));
- pam_error = pam_set_item(*pamh, PAM_TTY, "samba");
- if (pam_error != PAM_SUCCESS) {
- NTSTATUS nt_status;
-
- DEBUG(4,("smb_pam_start: setting tty failed with error: %s\n",
- pam_strerror(*pamh, pam_error)));
- nt_status = pam_to_nt_status(pam_error);
-
- pam_error = pam_end(*pamh, 0);
- if (pam_error != PAM_SUCCESS) {
- /* no valid pamh here, can we reliably call pam_strerror ? */
- DEBUG(4,("smb_pam_start: clean up failed, pam_end gave error %d.\n",
- pam_error));
- return pam_to_nt_status(pam_error);
- }
- return nt_status;
- }
-#endif
- DEBUG(4,("smb_pam_start: PAM: Init passed for user: %s\n", account_name));
-
- return NT_STATUS_OK;
-}
-
-static NTSTATUS smb_pam_end(pam_handle_t *pamh)
-{
- int pam_error;
-
- if (pamh != NULL) {
- pam_error = pam_end(pamh, 0);
- if (pam_error != PAM_SUCCESS) {
- /* no valid pamh here, can we reliably call pam_strerror ? */
- DEBUG(4,("smb_pam_end: clean up failed, pam_end gave error %d.\n",
- pam_error));
- return pam_to_nt_status(pam_error);
- }
- return NT_STATUS_OK;
- }
-
- DEBUG(2,("smb_pam_end: pamh is NULL, PAM not initialized ?\n"));
- return NT_STATUS_UNSUCCESSFUL;
-}
-
-/*
- * PAM Authentication Handler
- */
-static NTSTATUS smb_pam_auth(pam_handle_t *pamh, bool allow_null_passwords, const char *user)
-{
- int pam_error;
-
- /*
- * To enable debugging set in /etc/pam.d/samba:
- * auth required /lib/security/pam_pwdb.so nullok shadow audit
- */
-
- DEBUG(4,("smb_pam_auth: PAM: Authenticate User: %s\n", user));
-
- pam_error = pam_authenticate(pamh, PAM_SILENT | (allow_null_passwords ? 0 : PAM_DISALLOW_NULL_AUTHTOK));
- switch( pam_error ){
- case PAM_AUTH_ERR:
- DEBUG(2, ("smb_pam_auth: PAM: Authentication Error for user %s\n", user));
- break;
- case PAM_CRED_INSUFFICIENT:
- DEBUG(2, ("smb_pam_auth: PAM: Insufficient Credentials for user %s\n", user));
- break;
- case PAM_AUTHINFO_UNAVAIL:
- DEBUG(2, ("smb_pam_auth: PAM: Authentication Information Unavailable for user %s\n", user));
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(2, ("smb_pam_auth: PAM: Username %s NOT known to Authentication system\n", user));
- break;
- case PAM_MAXTRIES:
- DEBUG(2, ("smb_pam_auth: PAM: One or more authentication modules reports user limit for user %s exceeeded\n", user));
- break;
- case PAM_ABORT:
- DEBUG(0, ("smb_pam_auth: PAM: One or more PAM modules failed to load for user %s\n", user));
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_auth: PAM: User %s Authenticated OK\n", user));
- break;
- default:
- DEBUG(0, ("smb_pam_auth: PAM: UNKNOWN ERROR while authenticating user %s\n", user));
- break;
- }
-
- return pam_to_nt_status(pam_error);
-}
-
-/*
- * PAM Account Handler
- */
-static NTSTATUS smb_pam_account(pam_handle_t *pamh, const char * user)
-{
- int pam_error;
-
- DEBUG(4,("smb_pam_account: PAM: Account Management for User: %s\n", user));
-
- pam_error = pam_acct_mgmt(pamh, PAM_SILENT); /* Is user account enabled? */
- switch( pam_error ) {
- case PAM_AUTHTOK_EXPIRED:
- DEBUG(2, ("smb_pam_account: PAM: User %s is valid but password is expired\n", user));
- break;
- case PAM_ACCT_EXPIRED:
- DEBUG(2, ("smb_pam_account: PAM: User %s no longer permitted to access system\n", user));
- break;
- case PAM_AUTH_ERR:
- DEBUG(2, ("smb_pam_account: PAM: There was an authentication error for user %s\n", user));
- break;
- case PAM_PERM_DENIED:
- DEBUG(0, ("smb_pam_account: PAM: User %s is NOT permitted to access system at this time\n", user));
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(0, ("smb_pam_account: PAM: User \"%s\" is NOT known to account management\n", user));
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_account: PAM: Account OK for User: %s\n", user));
- break;
- default:
- DEBUG(0, ("smb_pam_account: PAM: UNKNOWN PAM ERROR (%d) during Account Management for User: %s\n", pam_error, user));
- break;
- }
-
- return pam_to_nt_status(pam_error);
-}
-
-/*
- * PAM Credential Setting
- */
-
-static NTSTATUS smb_pam_setcred(pam_handle_t *pamh, const char * user)
-{
- int pam_error;
-
- /*
- * This will allow samba to aquire a kerberos token. And, when
- * exporting an AFS cell, be able to /write/ to this cell.
- */
-
- DEBUG(4,("PAM: Account Management SetCredentials for User: %s\n", user));
-
- pam_error = pam_setcred(pamh, (PAM_ESTABLISH_CRED|PAM_SILENT));
- switch( pam_error ) {
- case PAM_CRED_UNAVAIL:
- DEBUG(0, ("smb_pam_setcred: PAM: Credentials not found for user:%s\n", user ));
- break;
- case PAM_CRED_EXPIRED:
- DEBUG(0, ("smb_pam_setcred: PAM: Credentials for user: \"%s\" EXPIRED!\n", user ));
- break;
- case PAM_USER_UNKNOWN:
- DEBUG(0, ("smb_pam_setcred: PAM: User: \"%s\" is NOT known so can not set credentials!\n", user ));
- break;
- case PAM_CRED_ERR:
- DEBUG(0, ("smb_pam_setcred: PAM: Unknown setcredentials error - unable to set credentials for %s\n", user ));
- break;
- case PAM_SUCCESS:
- DEBUG(4, ("smb_pam_setcred: PAM: SetCredentials OK for User: %s\n", user));
- break;
- default:
- DEBUG(0, ("smb_pam_setcred: PAM: UNKNOWN PAM ERROR (%d) during SetCredentials for User: %s\n", pam_error, user));
- break;
- }
-
- return pam_to_nt_status(pam_error);
-}
-
-static NTSTATUS check_unix_password(TALLOC_CTX *ctx, struct loadparm_context *lp_ctx,
- const struct auth_usersupplied_info *user_info, struct passwd **pws)
-{
- struct smb_pam_user_info *info;
- struct pam_conv *pamconv;
- pam_handle_t *pamh;
- NTSTATUS nt_status;
-
- info = talloc(ctx, struct smb_pam_user_info);
- if (info == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- info->account_name = user_info->mapped.account_name;
- info->plaintext_password = user_info->password.plaintext;
-
- pamconv = talloc(ctx, struct pam_conv);
- if (pamconv == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- pamconv->conv = smb_pam_conv;
- pamconv->appdata_ptr = (void *)info;
-
- /* TODO:
- * check for user_info->flags & USER_INFO_CASE_INSENSITIVE_USERNAME
- * if true set up a crack name routine.
- */
-
- nt_status = smb_pam_start(&pamh, user_info->mapped.account_name,
- user_info->remote_host ? tsocket_address_inet_addr_string(user_info->remote_host, ctx) : NULL, pamconv);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
-
- nt_status = smb_pam_auth(pamh, lpcfg_null_passwords(lp_ctx), user_info->mapped.account_name);
- if (!NT_STATUS_IS_OK(nt_status)) {
- smb_pam_end(pamh);
- return nt_status;
- }
-
- if ( ! (user_info->flags & USER_INFO_DONT_CHECK_UNIX_ACCOUNT)) {
-
- nt_status = smb_pam_account(pamh, user_info->mapped.account_name);
- if (!NT_STATUS_IS_OK(nt_status)) {
- smb_pam_end(pamh);
- return nt_status;
- }
-
- nt_status = smb_pam_setcred(pamh, user_info->mapped.account_name);
- if (!NT_STATUS_IS_OK(nt_status)) {
- smb_pam_end(pamh);
- return nt_status;
- }
- }
-
- smb_pam_end(pamh);
-
- nt_status = talloc_getpwnam(ctx, user_info->mapped.account_name, pws);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
-
- return NT_STATUS_OK;
-}
-
-#else
-
-/****************************************************************************
-core of password checking routine
-****************************************************************************/
-static NTSTATUS password_check(const char *username, const char *password,
- const char *crypted, const char *salt)
-{
- bool ret;
-
-
-
-#ifdef OSF1_ENH_SEC
-
- ret = (strcmp(osf1_bigcrypt(password, salt), crypted) == 0);
-
- if (!ret) {
- DEBUG(2,
- ("OSF1_ENH_SEC failed. Trying normal crypt.\n"));
- ret = (strcmp((char *)crypt(password, salt), crypted) == 0);
- }
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-
-#endif /* OSF1_ENH_SEC */
-
-#ifdef ULTRIX_AUTH
- ret = (strcmp((char *)crypt16(password, salt), crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-
-#endif /* ULTRIX_AUTH */
-
-
-
-#ifdef HAVE_BIGCRYPT
- ret = (strcmp(bigcrypt(password, salt), crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#endif /* HAVE_BIGCRYPT */
-
-#ifndef HAVE_CRYPT
- DEBUG(1, ("Warning - no crypt available\n"));
- return NT_STATUS_LOGON_FAILURE;
-#else /* HAVE_CRYPT */
- ret = (strcmp((char *)crypt(password, salt), crypted) == 0);
- if (ret) {
- return NT_STATUS_OK;
- } else {
- return NT_STATUS_WRONG_PASSWORD;
- }
-#endif /* HAVE_CRYPT */
-}
-
-static NTSTATUS check_unix_password(TALLOC_CTX *ctx, struct loadparm_context *lp_ctx,
- const struct auth_usersupplied_info *user_info, struct passwd **ret_passwd)
-{
- char *username;
- char *password;
- char *salt;
- char *crypted;
- struct passwd *pws;
- NTSTATUS nt_status;
-
- *ret_passwd = NULL;
-
- username = talloc_strdup(ctx, user_info->mapped.account_name);
- password = talloc_strdup(ctx, user_info->password.plaintext);
-
- nt_status = talloc_getpwnam(ctx, username, &pws);
- if (!NT_STATUS_IS_OK(nt_status)) {
- return nt_status;
- }
-
- crypted = pws->pw_passwd;
- salt = pws->pw_passwd;
-
-#ifdef HAVE_GETSPNAM
- {
- struct spwd *spass;
-
- /* many shadow systems require you to be root to get
- the password, in most cases this should already be
- the case when this function is called, except
- perhaps for IPC password changing requests */
-
- spass = getspnam(pws->pw_name);
- if (spass && spass->sp_pwdp) {
- crypted = talloc_strdup(ctx, spass->sp_pwdp);
- NT_STATUS_HAVE_NO_MEMORY(crypted);
- salt = talloc_strdup(ctx, spass->sp_pwdp);
- NT_STATUS_HAVE_NO_MEMORY(salt);
- }
- }
-#elif defined(IA_UINFO)
- {
- char *ia_password;
- /* Need to get password with SVR4.2's ia_ functions
- instead of get{sp,pw}ent functions. Required by
- UnixWare 2.x, tested on version
- 2.1. (tangent@cyberport.com) */
- uinfo_t uinfo;
- if (ia_openinfo(pws->pw_name, &uinfo) != -1) {
- ia_get_logpwd(uinfo, &ia_password);
- crypted = talloc_strdup(ctx, ia_password);
- NT_STATUS_HAVE_NO_MEMORY(crypted);
- }
- }
-#endif
-
-
-#ifdef HAVE_GETPWANAM
- {
- struct passwd_adjunct *pwret;
- pwret = getpwanam(s);
- if (pwret && pwret->pwa_passwd) {
- crypted = talloc_strdup(ctx, pwret->pwa_passwd);
- NT_STATUS_HAVE_NO_MEMORY(crypted);
- }
- }
-#endif
-
-#ifdef OSF1_ENH_SEC
- {
- struct pr_passwd *mypasswd;
- DEBUG(5,("Checking password for user %s in OSF1_ENH_SEC\n", username));
- mypasswd = getprpwnam(username);
- if (mypasswd) {
- username = talloc_strdup(ctx, mypasswd->ufld.fd_name);
- NT_STATUS_HAVE_NO_MEMORY(username);
- crypted = talloc_strdup(ctx, mypasswd->ufld.fd_encrypt);
- NT_STATUS_HAVE_NO_MEMORY(crypted);
- } else {
- DEBUG(5,("OSF1_ENH_SEC: No entry for user %s in protected database !\n", username));
- }
- }
-#endif
-
-#ifdef ULTRIX_AUTH
- {
- AUTHORIZATION *ap = getauthuid(pws->pw_uid);
- if (ap) {
- crypted = talloc_strdup(ctx, ap->a_password);
- endauthent();
- NT_STATUS_HAVE_NO_MEMORY(crypted);
- }
- }
-#endif
-
-
- if (crypted[0] == '\0') {
- if (!lpcfg_null_passwords(lp_ctx)) {
- DEBUG(2, ("Disallowing %s with null password\n", username));
- return NT_STATUS_LOGON_FAILURE;
- }
- if (password == NULL) {
- DEBUG(3, ("Allowing access to %s with null password\n", username));
- *ret_passwd = pws;
- return NT_STATUS_OK;
- }
- }
-
- /* try it as it came to us */
- nt_status = password_check(username, password, crypted, salt);
- if (NT_STATUS_IS_OK(nt_status)) {
- *ret_passwd = pws;
- return nt_status;
- }
- else if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD)) {
- /* No point continuing if its not the password thats to blame (ie PAM disabled). */
- return nt_status;
- }
-
- /* we no longer try different case combinations here. The use
- * of this code is now web auth, where trying different case
- * combinations makes no sense
- */
-
- return NT_STATUS_WRONG_PASSWORD;
-}
-
-#endif
-
-/** Check a plaintext username/password
- *
- **/
-
-static NTSTATUS authunix_want_check(struct auth_method_context *ctx,
- TALLOC_CTX *mem_ctx,
- const struct auth_usersupplied_info *user_info)
-{
- if (!user_info->mapped.account_name || !*user_info->mapped.account_name) {
- return NT_STATUS_NOT_IMPLEMENTED;
- }
-
- return NT_STATUS_OK;
-}
-
-struct authunix_check_password_state {
- struct auth_user_info_dc *user_info_dc;
-};
-
-static struct tevent_req *authunix_check_password_send(
- TALLOC_CTX *mem_ctx,
- struct tevent_context *ev,
- struct auth_method_context *ctx,
- const struct auth_usersupplied_info *user_info)
-{
- struct tevent_req *req = NULL;
- struct authunix_check_password_state *state = NULL;
- struct passwd *pwd = NULL;
- NTSTATUS status;
-
- req = tevent_req_create(
- mem_ctx,
- &state,
- struct authunix_check_password_state);
- if (req == NULL) {
- return NULL;
- }
-
- if (user_info->password_state != AUTH_PASSWORD_PLAIN) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, ev);
- }
-
- status = check_unix_password(
- state, ctx->auth_ctx->lp_ctx, user_info, &pwd);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, ev);
- }
-
- status = authunix_make_user_info_dc(
- state,
- lpcfg_netbios_name(ctx->auth_ctx->lp_ctx),
- user_info,
- pwd,
- &state->user_info_dc);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, ev);
- }
-
- tevent_req_done(req);
- return tevent_req_post(req, ev);
-}
-
-static NTSTATUS authunix_check_password_recv(
- struct tevent_req *req,
- TALLOC_CTX *mem_ctx,
- struct auth_user_info_dc **interim_info,
- bool *authoritative)
-{
- struct authunix_check_password_state *state = tevent_req_data(
- req, struct authunix_check_password_state);
- NTSTATUS status;
-
- if (tevent_req_is_nterror(req, &status)) {
- tevent_req_received(req);
- return status;
- }
- *interim_info = talloc_move(mem_ctx, &state->user_info_dc);
- tevent_req_received(req);
- return NT_STATUS_OK;
-}
-
-static const struct auth_operations unix_ops = {
- .name = "unix",
- .want_check = authunix_want_check,
- .check_password_send = authunix_check_password_send,
- .check_password_recv = authunix_check_password_recv,
-};
-
-_PUBLIC_ NTSTATUS auth4_unix_init(TALLOC_CTX *ctx)
-{
- NTSTATUS ret;
-
- ret = auth_register(ctx, &unix_ops);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Failed to register unix auth backend!\n"));
- return ret;
- }
-
- return ret;
-}
projects / thirdparty / samba.git / commitdiff
