/*
Unix SMB/CIFS implementation.
Password and authentication handling
- Copyright (C) Andrew Bartlett 2001
+ 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
*/
#include "includes.h"
+#include "auth/auth.h"
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_AUTH
+/* 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_server_info(TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **_server_info)
+{
+ struct auth_serversupplied_info *server_info;
-/**
- * update the encrypted smbpasswd file from the plaintext username and password
- *
- * this ugly hack needs to die, but not quite yet, I think people still use it...
- **/
-static BOOL update_smbpassword_file(const char *user, const char *password)
+ server_info = talloc(mem_ctx, struct auth_serversupplied_info);
+ NT_STATUS_HAVE_NO_MEMORY(server_info);
+
+ server_info->authenticated = True;
+
+ server_info->account_name = talloc_strdup(server_info, talloc_strdup(mem_ctx, user_info->mapped.account_name));
+ NT_STATUS_HAVE_NO_MEMORY(server_info->account_name);
+
+ server_info->domain_name = talloc_strdup(server_info, talloc_strdup(mem_ctx, "unix"));
+ NT_STATUS_HAVE_NO_MEMORY(server_info->domain_name);
+
+
+ /* is this correct? */
+ server_info->account_sid = NULL;
+ server_info->primary_group_sid = NULL;
+ server_info->n_domain_groups = 0;
+ server_info->domain_groups = NULL;
+ server_info->user_session_key = data_blob(NULL,0);
+ server_info->lm_session_key = data_blob(NULL,0);
+
+ server_info->full_name = talloc_strdup(server_info, "");
+ NT_STATUS_HAVE_NO_MEMORY(server_info->full_name);
+ server_info->logon_script = talloc_strdup(server_info, "");
+ NT_STATUS_HAVE_NO_MEMORY(server_info->logon_script);
+ server_info->profile_path = talloc_strdup(server_info, "");
+ NT_STATUS_HAVE_NO_MEMORY(server_info->profile_path);
+ server_info->home_directory = talloc_strdup(server_info, "");
+ NT_STATUS_HAVE_NO_MEMORY(server_info->home_directory);
+ server_info->home_drive = talloc_strdup(server_info, "");
+ NT_STATUS_HAVE_NO_MEMORY(server_info->home_drive);
+
+ server_info->last_logon = 0;
+ server_info->last_logoff = 0;
+ server_info->acct_expiry = 0;
+ server_info->last_password_change = 0;
+ server_info->allow_password_change = 0;
+ server_info->force_password_change = 0;
+ server_info->logon_count = 0;
+ server_info->bad_password_count = 0;
+ server_info->acct_flags = 0;
+
+ *_server_info = server_info;
+
+ 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)
{
- SAM_ACCOUNT *sampass = NULL;
- BOOL ret;
-
- pdb_init_sam(&sampass);
+ 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;
+ }
- become_root();
- ret = pdb_getsampwnam(sampass, user);
- unbecome_root();
+ /*
+ * Apparantly HPUX has a buggy PAM that doesn't support the
+ * data pointer. Fail if this is the case. JRA.
+ */
- if(ret == False) {
- DEBUG(0,("pdb_getsampwnam returned NULL\n"));
- pdb_free_sam(&sampass);
- return False;
+ if (info == NULL) {
+ *reply = NULL;
+ return PAM_CONV_ERR;
}
/*
- * Remove the account disabled flag - we are updating the
- * users password from a login.
+ * PAM frees memory in reply messages by itself
+ * so use malloc instead of talloc here.
*/
- if (!pdb_set_acct_ctrl(sampass, pdb_get_acct_ctrl(sampass) & ~ACB_DISABLED, PDB_CHANGED)) {
- pdb_free_sam(&sampass);
- return False;
+ *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)));
+
+ 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:
+ SAFE_FREE(*reply);
+ *reply = NULL;
+ DEBUG(1,("Error: PAM subsystme sent an UNKNOWN message type to the conversation function!\n"));
+ return PAM_CONV_ERR;
+ }
}
- if (!pdb_set_plaintext_passwd (sampass, password)) {
- pdb_free_sam(&sampass);
- return False;
+ 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;
}
- /* Now write it into the file. */
- become_root();
+ DEBUG(4,("smb_pam_start: PAM: Init user: %s\n", account_name));
- ret = pdb_update_sam_account (sampass);
+ pam_error = pam_start("samba", account_name, pconv, pamh);
+ if (pam_error != PAM_SUCCESS) {
+ /* no vaild pamh here, can we reliably call pam_strerror ? */
+ DEBUG(4,("smb_pam_start: pam_start failed!\n"));
+ return NT_STATUS_UNSUCCESSFUL;
+ }
- unbecome_root();
+#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;
- if (ret) {
- DEBUG(3,("pdb_update_sam_account returned %d\n",ret));
+ 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 vaild 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;
- pdb_free_sam(&sampass);
- return ret;
+ 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 vaild 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;
-/** Check a plaintext username/password
- *
- * Cannot deal with an encrupted password in any manner whatsoever,
- * unless the account has a null password.
- **/
+ if (pamh != NULL) {
+ pam_error = pam_end(pamh, 0);
+ if (pam_error != PAM_SUCCESS) {
+ /* no vaild 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, 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 | lp_null_passwords() ? 0 : PAM_DISALLOW_NULL_AUTHTOK);
+ switch( pam_error ){
+ case PAM_AUTH_ERR:
+ DEBUG(2, ("smb_pam_auth: PAM: Athentication 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;
+ }
-static NTSTATUS check_unix_security(const struct auth_context *auth_context,
- void *my_private_data,
- TALLOC_CTX *mem_ctx,
- const auth_usersupplied_info *user_info,
- auth_serversupplied_info **server_info)
+ return pam_to_nt_status(pam_error);
+}
+
+static NTSTATUS check_unix_password(TALLOC_CTX *ctx, const struct auth_usersupplied_info *user_info)
{
+ struct smb_pam_user_info *info;
+ struct pam_conv *pamconv;
+ pam_handle_t *pamh;
NTSTATUS nt_status;
- struct passwd *pass = NULL;
- become_root();
- pass = Get_Pwnam(user_info->internal_username.str);
+ 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, pamconv);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ smb_pam_end(pamh);
+ return nt_status;
+ }
+
+ nt_status = smb_pam_auth(pamh, 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);
+ return NT_STATUS_OK;
+}
+
+#else
+
+static NTSTATUS talloc_getpwnam(TALLOC_CTX *ctx, 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;
+}
+
+
+/****************************************************************************
+core of password checking routine
+****************************************************************************/
+static NTSTATUS password_check(const char *username, const char *password,
+ const char *crypted, const char *salt)
+{
+ BOOL ret;
+
+#ifdef WITH_AFS
+ if (afs_auth(username, password))
+ return NT_STATUS_OK;
+#endif /* WITH_AFS */
+
+#ifdef WITH_DFS
+ if (dfs_auth(username, password))
+ return NT_STATUS_OK;
+#endif /* WITH_DFS */
+
+#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 LINUX_BIGCRYPT
+ ret = (linux_bigcrypt(password, salt, crypted));
+ if (ret) {
+ return NT_STATUS_OK;
+ } else {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+#endif /* LINUX_BIGCRYPT */
+
+#if defined(HAVE_BIGCRYPT) && defined(HAVE_CRYPT) && defined(USE_BOTH_CRYPT_CALLS)
+
+ /*
+ * Some systems have bigcrypt in the C library but might not
+ * actually use it for the password hashes (HPUX 10.20) is
+ * a noteable example. So we try bigcrypt first, followed
+ * by crypt.
+ */
+ if (strcmp(bigcrypt(password, salt), crypted) == 0)
+ return NT_STATUS_OK;
+ else
+ ret = (strcmp((char *)crypt(password, salt), crypted) == 0);
+ if (ret) {
+ return NT_STATUS_OK;
+ } else {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+#else /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
- /** @todo This call assumes a ASCII password, no charset transformation is
- done. We may need to revisit this **/
- nt_status = pass_check(pass,
- pass ? pass->pw_name : user_info->internal_username.str,
- (char *)user_info->plaintext_password.data,
- user_info->plaintext_password.length-1,
- lp_update_encrypted() ?
- update_smbpassword_file : NULL,
- True);
+#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 */
- unbecome_root();
+#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 */
+#endif /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
+}
+
+static NTSTATUS check_unix_password(TALLOC_CTX *ctx, const struct auth_usersupplied_info *user_info)
+{
+ char *username;
+ char *password;
+ char *pwcopy;
+ char *salt;
+ char *crypted;
+ struct passwd *pws;
+ NTSTATUS nt_status;
+ int level = lp_passwordlevel();
+
+ 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;
- if (NT_STATUS_IS_OK(nt_status)) {
- if (pass) {
- make_server_info_pw(auth_context, server_info, pass);
+ /* 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_GETPRPWNAM
+ {
+ struct pr_passwd *pr_pw = getprpwnam(pws->pw_name);
+ if (pr_pw && pr_pw->ufld.fd_encrypt) {
+ crypted = talloc_strdup(ctx, pr_pw->ufld.fd_encrypt);
+ 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 {
- /* we need to do somthing more useful here */
- nt_status = NT_STATUS_NO_SUCH_USER;
+ 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 defined(HAVE_TRUNCATED_SALT)
+ /* crypt on some platforms (HPUX in particular)
+ won't work with more than 2 salt characters. */
+ salt[2] = 0;
+#endif
+
+ if (crypted[0] == '\0') {
+ if (!lp_null_passwords()) {
+ 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));
+ 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) {
+ 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;
+ }
+
+ if ( user_info->flags | USER_INFO_CASE_INSENSITIVE_PASSWORD) {
+ return nt_status;
+ }
+
+ /* if the password was given to us with mixed case then we don't
+ * need to proceed as we know it hasn't been case modified by the
+ * client */
+ if (strhasupper(password) && strhaslower(password)) {
+ return nt_status;
+ }
+
+ /* make a copy of it */
+ pwcopy = talloc_strdup(ctx, password);
+ if (!pwcopy)
+ return NT_STATUS_NO_MEMORY;
+
+ /* try all lowercase if it's currently all uppercase */
+ if (strhasupper(pwcopy)) {
+ strlower(pwcopy);
+ nt_status = password_check(username, pwcopy, crypted, salt);
+ if NT_STATUS_IS_OK(nt_status) {
+ return nt_status;
}
}
- return nt_status;
+ /* give up? */
+ if (level < 1) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ /* last chance - all combinations of up to level chars upper! */
+ strlower(pwcopy);
+
+#if 0
+ if (NT_STATUS_IS_OK(nt_status = string_combinations(pwcopy, password_check, level))) {
+ return nt_status;
+ }
+#endif
+ return NT_STATUS_WRONG_PASSWORD;
}
-/* module initialisation */
-static NTSTATUS auth_init_unix(struct auth_context *auth_context, const char* param, auth_methods **auth_method)
+#endif
+
+/** Check a plaintext username/password
+ *
+ **/
+
+static NTSTATUS authunix_check_password(struct auth_method_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
{
- if (!make_auth_methods(auth_context, auth_method)) {
+ TALLOC_CTX *check_ctx;
+ NTSTATUS nt_status;
+
+ if (! user_info->mapped.account_name || ! *user_info->mapped.account_name) {
+ /* 'not for me' */
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+
+ if (user_info->password_state != AUTH_PASSWORD_PLAIN) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ check_ctx = talloc_named_const(mem_ctx, 0, "check_unix_password");
+ if (check_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
- (*auth_method)->name = "unix";
- (*auth_method)->auth = check_unix_security;
+ nt_status = check_unix_password(check_ctx, user_info);
+ if ( ! NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(check_ctx);
+ return nt_status;
+ }
+
+ nt_status = authunix_make_server_info(mem_ctx, user_info, server_info);
+ if ( ! NT_STATUS_IS_OK(nt_status)) {
+ talloc_free(check_ctx);
+ return nt_status;
+ }
+
+ talloc_free(check_ctx);
return NT_STATUS_OK;
}
+static const struct auth_operations unix_ops = {
+ .name = "unix",
+ .get_challenge = auth_get_challenge_not_implemented,
+ .check_password = authunix_check_password
+};
+
NTSTATUS auth_unix_init(void)
{
NTSTATUS ret;
- struct auth_operations ops;
- ops.name = "unix";
- ops.init = auth_init_unix;
- ret = register_backend("auth", &ops);
+ ret = auth_register(&unix_ops);
if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Failed to register '%s' auth backend!\n",
- ops.name));
+ DEBUG(0,("Failed to register unix auth backend!\n"));
return ret;
}
git.samba.org / abartlet / samba.git / .git / blobdiff