/*
- * $Id: uams_dhx_pam.c,v 1.24 2003-01-08 22:16:24 didg Exp $
+ * $Id: uams_dhx_pam.c,v 1.33 2010-03-30 10:25:49 franklahm Exp $
*
* Copyright (c) 1990,1993 Regents of The University of Michigan.
* Copyright (c) 1999 Adrian Sun (asun@u.washington.edu)
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include <errno.h>
-
+#ifdef HAVE_SECURITY_PAM_APPL_H
#include <security/pam_appl.h>
+#endif
+#ifdef HAVE_PAM_PAM_APPL_H
+#include <pam/pam_appl.h>
+#endif
+
#if defined(GNUTLS_DHX)
#include <gnutls/openssl.h>
#include <openssl/bn.h>
#include <openssl/dh.h>
#include <openssl/cast.h>
+#include <openssl/err.h>
#else /* OPENSSL_DHX */
#include <bn.h>
#include <dh.h>
#include <cast.h>
+#include <err.h>
#endif /* OPENSSL_DHX */
#include <atalk/afp.h>
static int PAM_conv (int num_msg,
const struct pam_message **msg,
struct pam_response **resp,
- void *appdata_ptr) {
+ void *appdata_ptr _U_) {
int count = 0;
struct pam_response *reply;
};
-static int dhx_setup(void *obj, char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+static int dhx_setup(void *obj, char *ibuf, size_t ibuflen _U_,
+ char *rbuf, size_t *rbuflen)
{
u_int16_t sessid;
- int i;
+ size_t i;
BIGNUM *bn, *gbn, *pbn;
DH *dh;
- /* TODO: seed dhx_setup properly... this is a hack */
-#ifdef sun
- /* *SEVERE* hack... fix */
- RAND_load_file("/var/adm/messages", KEYSIZE);
-#endif /* sun */
-
/* get the client's public key */
if (!(bn = BN_bin2bn(ibuf, KEYSIZE, NULL))) {
/* Log Entry */
/* generate key and make sure that we have enough space */
dh->p = pbn;
dh->g = gbn;
- if (!DH_generate_key(dh) || (BN_num_bytes(dh->pub_key) > KEYSIZE)) {
- /* Log Entry */
- LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: Err Generating Key -- Not enough Space? -- %s",
- strerror(errno));
- /* Log Entry */
- goto pam_fail;
+ if (DH_generate_key(dh) == 0) {
+ unsigned long dherror;
+ char errbuf[256];
+
+ ERR_load_crypto_strings();
+ dherror = ERR_get_error();
+ ERR_error_string_n(dherror, errbuf, 256);
+
+ LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: Err Generating Key (OpenSSL error code: %u, %s)", dherror, errbuf);
+
+ ERR_free_strings();
+ goto pam_fail;
+ }
+ if (BN_num_bytes(dh->pub_key) > KEYSIZE) {
+ LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: Err Generating Key -- Not enough Space? -- %s", strerror(errno));
+ goto pam_fail;
}
/* figure out the key. store the key in rbuf for now. */
}
/* -------------------------------- */
-static int login(void *obj, char *username, int ulen, struct passwd **uam_pwd,
- char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+static int login(void *obj, char *username, int ulen, struct passwd **uam_pwd _U_,
+ char *ibuf, size_t ibuflen,
+ char *rbuf, size_t *rbuflen)
{
- if (( dhxpwd = uam_getname(username, ulen)) == NULL ) {
- LOG(log_info, logtype_uams, "uams_dhx_pam.c: unknown username");
- return AFPERR_PARAM;
+ if (( dhxpwd = uam_getname(obj, username, ulen)) == NULL ) {
+ LOG(log_info, logtype_uams, "uams_dhx_pam.c: unknown username [%s]", username);
+ return AFPERR_NOTAUTH;
}
PAM_username = username;
/* dhx login: things are done in a slightly bizarre order to avoid
* having to clean things up if there's an error. */
static int pam_login(void *obj, struct passwd **uam_pwd,
- char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+ char *ibuf, size_t ibuflen,
+ char *rbuf, size_t *rbuflen)
{
char *username;
- int len, ulen;
+ size_t len, ulen;
*rbuflen = 0;
/* ----------------------------- */
static int pam_login_ext(void *obj, char *uname, struct passwd **uam_pwd,
- char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+ char *ibuf, size_t ibuflen,
+ char *rbuf, size_t *rbuflen)
{
char *username;
int len, ulen;
/* -------------------------------- */
static int pam_logincont(void *obj, struct passwd **uam_pwd,
- char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+ char *ibuf, size_t ibuflen _U_,
+ char *rbuf, size_t *rbuflen)
{
- char *hostname;
+ const char *hostname;
BIGNUM *bn1, *bn2, *bn3;
u_int16_t sessid;
int err, PAM_error;
}
PAM_error = pam_acct_mgmt(pamh, 0);
- if (PAM_error != PAM_SUCCESS) {
- if (PAM_error == PAM_ACCT_EXPIRED)
+ if (PAM_error != PAM_SUCCESS ) {
+ /* Log Entry */
+ LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: PAM_Error: %s",
+ pam_strerror(pamh, PAM_error));
+ /* Log Entry */
+ if (PAM_error == PAM_NEW_AUTHTOK_REQD) /* password expired */
err = AFPERR_PWDEXPR;
#ifdef PAM_AUTHTOKEN_REQD
else if (PAM_error == PAM_AUTHTOKEN_REQD)
err = AFPERR_PWDCHNG;
#endif
- /* Log Entry */
- LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: PAM_Error: %s",
- pam_strerror(pamh, PAM_error));
- /* Log Entry */
- goto logincont_err;
+ else
+ goto logincont_err;
}
#ifndef PAM_CRED_ESTABLISH
/* Log Entry */
LOG(log_info, logtype_uams, "uams_dhx_pam.c :PAM: PAM Auth OK!");
/* Log Entry */
+ if ( err == AFPERR_PWDEXPR)
+ return err;
return AFP_OK;
logincont_err:
}
/* logout */
-static void pam_logout() {
+static void pam_logout(void) {
pam_close_session(pamh, 0);
pam_end(pamh, 0);
pamh = NULL;
/* change pw for dhx needs a couple passes to get everything all
* right. basically, it's like the login/logincont sequence */
static int pam_changepw(void *obj, char *username,
- struct passwd *pwd, char *ibuf, int ibuflen,
- char *rbuf, int *rbuflen)
+ struct passwd *pwd _U_, char *ibuf, size_t ibuflen,
+ char *rbuf, size_t *rbuflen)
{
BIGNUM *bn1, *bn2, *bn3;
u_int16_t sessid;
int PAM_error;
+ if (ibuflen < sizeof(sessid)) {
+ return AFPERR_PARAM;
+ }
+
/* grab the id */
memcpy(&sessid, ibuf, sizeof(sessid));
ibuf += sizeof(sessid);
projects / netatalk.git / blobdiff