USE_MANUAL="no";
fi
+dnl **********************************************************
+dnl path of NTLM single-sign-on helper ntlm_auth
+dnl
+AC_ARG_WITH(ntlm-auth,
+ AC_HELP_STRING([--with-ntlm-auth=PATH],
+ [Where to look for ntlm_auth, path points to ntlm_auth installation (default: /usr/bin/ntlm_auth);])
+ AC_HELP_STRING([--without-ntlm-auth],
+ [disable ntlm single-sign-on by using ntlm_auth]),
+ntlm_auth="$withval",
+ [if test "$ac_cv_native_windows" = "yes"; then ntlm_auth="no"; else ntlm_auth="/usr/bin/ntlm_auth"; fi])
+
+AC_MSG_CHECKING([if using ntlm_auth is requested])
+
+if test "$ntlm_auth" != "no"; then
+ AC_DEFINE(USE_NTLM_AUTH, 1, [Whether or not use Samba's 'winbind' daemon helper 'ntlm_auth' for NTLM single-sign-on])
+ AC_SUBST(USE_NTLM_AUTH, [1])
+ if test "$ntlm_auth" = "yes"; then
+ dnl --with-ntlm-auth (without path) used, use default path
+ ntlm_auth="/usr/bin/ntlm_auth"
+ fi
+ AC_MSG_RESULT($ntlm_auth)
+else
+ AC_MSG_RESULT(no)
+fi
+AC_SUBST(ntlm_auth)
+AC_DEFINE_UNQUOTED(NTLM_AUTH, "$ntlm_auth", [Samba's 'winbind' daemon helper 'ntlm_auth' which can be used for NTLM single-sign-on])
+
+
dnl *************************************************************************
dnl If the manual variable still is set, then we go with providing a built-in
dnl manual
if test "x$USE_SSLEAY" = "x1" -o "x$USE_WINDOWS_SSPI" = "x1" \
-o "x$GNUTLS_ENABLED" = "x1" -o "x$NSS_ENABLED" = "x1"; then
SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM"
+ if test "x$USE_NTLM_AUTH" = "x1"; then
+ SUPPORT_FEATURES="$SUPPORT_FEATURES NTLM_SSO"
+ fi
fi
fi
if test "x$USE_TLS_SRP" = "x1"; then
#define CURLAUTH_GSSNEGOTIATE (1<<2) /* GSS-Negotiate */
#define CURLAUTH_NTLM (1<<3) /* NTLM */
#define CURLAUTH_DIGEST_IE (1<<4) /* Digest with IE flavour */
+#define CURLAUTH_NTLM_SSO (1<<5) /* NTLM single-sign-on */
#define CURLAUTH_ONLY (1<<31) /* used together with a single other
type to force no auth or just that
single type */
#define CURL_VERSION_CONV (1<<12) /* character conversions supported */
#define CURL_VERSION_CURLDEBUG (1<<13) /* debug memory tracking supported */
#define CURL_VERSION_TLSAUTH_SRP (1<<14) /* TLS-SRP auth is supported */
-
-/*
+#define CURL_VERSION_NTLM_SSO (1<<15) /* NTLM single-sign-on is supported
+ by using ntlm_auth */
+ /*
* NAME curl_version_info()
*
* DESCRIPTION
pick->picked = CURLAUTH_DIGEST;
else if(avail & CURLAUTH_NTLM)
pick->picked = CURLAUTH_NTLM;
+ else if(avail & CURLAUTH_NTLM_SSO)
+ pick->picked = CURLAUTH_NTLM_SSO;
else if(avail & CURLAUTH_BASIC)
pick->picked = CURLAUTH_BASIC;
else {
if((expectsend == -1) || (expectsend > bytessent)) {
/* There is still data left to send */
if((data->state.authproxy.picked == CURLAUTH_NTLM) ||
- (data->state.authhost.picked == CURLAUTH_NTLM)) {
+ (data->state.authhost.picked == CURLAUTH_NTLM) ||
+ (data->state.authproxy.picked == CURLAUTH_NTLM_SSO) ||
+ (data->state.authhost.picked == CURLAUTH_NTLM_SSO)) {
if(((expectsend - bytessent) < 2000) ||
(conn->ntlm.state != NTLMSTATE_NONE)) {
/* The NTLM-negotiation has started *OR* there is just a little (<2K)
}
else
#endif
+#ifdef USE_NTLM_SSO
+ if(authstatus->picked == CURLAUTH_NTLM_SSO) {
+ auth="NTLM_SSO";
+ result = Curl_output_ntlm_sso(conn, proxy);
+ if(result)
+ return result;
+ }
+ else
+#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(authstatus->picked == CURLAUTH_DIGEST) {
auth="Digest";
if(checkprefix("NTLM", start)) {
*availp |= CURLAUTH_NTLM;
authp->avail |= CURLAUTH_NTLM;
- if(authp->picked == CURLAUTH_NTLM) {
+ if(authp->picked == CURLAUTH_NTLM ||
+ authp->picked == CURLAUTH_NTLM_SSO) {
/* NTLM authentication is picked and activated */
CURLntlm ntlm =
Curl_input_ntlm(conn, (bool)(httpcode == 407), start);
-
- if(CURLNTLM_BAD != ntlm)
+ if(CURLNTLM_BAD != ntlm) {
data->state.authproblem = FALSE;
+#ifdef USE_NTLM_SSO
+ if(authp->picked == CURLAUTH_NTLM_SSO) {
+ *availp &= ~CURLAUTH_NTLM;
+ authp->avail &= ~CURLAUTH_NTLM;
+ *availp |= CURLAUTH_NTLM_SSO;
+ authp->avail |= CURLAUTH_NTLM_SSO;
+
+ /* Get the challenge-message which will be passed to
+ * ntlm_auth for generating the type 3 message later */
+ while(*start && ISSPACE(*start))
+ start++;
+ if(checkprefix("NTLM", start)) {
+ start += strlen("NTLM");
+ while(*start && ISSPACE(*start))
+ start++;
+ if(*start)
+ if((conn->challenge_header = strdup(start)) == NULL)
+ return CURLE_OUT_OF_MEMORY;
+ }
+ }
+#endif
+ }
else {
infof(data, "Authentication problem. Ignoring this.\n");
data->state.authproblem = TRUE;
#include <unistd.h>
#endif
+#ifdef USE_NTLM_SSO
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <errno.h>
+#endif
+
#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
#include <netdb.h>
#endif
}
#endif
+#ifdef USE_NTLM_SSO
+static void sso_ntlm_close(struct connectdata *conn)
+{
+ if(conn->fd_helper != -1) {
+ close(conn->fd_helper);
+ conn->fd_helper = -1;
+ }
+
+ if(conn->pid) {
+ int ret, i;
+ for(i = 0; i < 4; i++) {
+ ret = waitpid(conn->pid, NULL, WNOHANG);
+ if(ret == conn->pid || errno == ECHILD)
+ break;
+ switch(i) {
+ case 0:
+ kill(conn->pid, SIGTERM);
+ break;
+ case 2:
+ kill(conn->pid, SIGKILL);
+ break;
+ case 1:
+ case 3:
+ break;
+ }
+ }
+ conn->pid = 0;
+ }
+
+ Curl_safefree(conn->challenge_header);
+ conn->challenge_header = NULL;
+ Curl_safefree(conn->response_header);
+ conn->response_header = NULL;
+}
+
+static CURLcode sso_ntlm_initiate(struct connectdata *conn,
+ const char *userp)
+{
+ int sockfds[2];
+ pid_t pid;
+ const char *username;
+ char *slash, *domain = NULL;
+ const char *ntlm_auth;
+
+ /* Return if communication with ntlm_auth already set up */
+ if(conn->fd_helper != -1 || conn->pid) {
+ return CURLE_OK;
+ }
+
+ username = userp;
+ slash = strpbrk(username, "\\/");
+ if(slash) {
+ if((domain = strdup(username)) == NULL)
+ return CURLE_OUT_OF_MEMORY;
+ slash = domain + (slash - username);
+ *slash = '\0';
+ username = username + (slash - domain) + 1;
+ }
+
+ /* When DEBUGBUILD is defined and environment variable NTLM_AUTH is set
+ * (in test case 2005), use a fake_ntlm to do NTLM challenge/response,
+ * which only accept commands and output strings pre-written/saved in
+ * test case 2005 */
+#ifdef DEBUGBUILD
+ ntlm_auth=getenv("NTLM_AUTH");
+#endif
+ if(!ntlm_auth)
+ ntlm_auth = NTLM_AUTH;
+
+ if(access(ntlm_auth, X_OK) != 0)
+ goto done;
+
+ if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds))
+ goto done;
+
+ pid = fork();
+ if(!pid) {
+ /* child process */
+ if(dup2(sockfds[1], 0) == -1 || dup2(sockfds[1], 1) == -1)
+ exit(1);
+
+ execl(ntlm_auth, "--helper-protocol", "ntlmssp-client-1",
+ "--use-cached-creds", "--username", username,
+ domain?"--domain":NULL, domain, NULL);
+ exit(1);
+ }
+ else if(pid == -1) {
+ close(sockfds[0]);
+ close(sockfds[1]);
+ goto done;
+ }
+
+ close(sockfds[1]);
+ conn->fd_helper = sockfds[0];
+ conn->pid = pid;
+ Curl_safefree(domain);
+ return CURLE_OK;
+
+done:
+ Curl_safefree(domain);
+ return CURLE_REMOTE_ACCESS_DENIED;
+}
+
+static CURLcode sso_ntlm_response(struct connectdata *conn,
+ const char *input, curlntlm state)
+{
+ ssize_t size;
+ char buf[200]; /* enough, type 1, 3 message length is less then 200 */
+ char *tmpbuf = buf;
+ size_t len_in = strlen(input), len_out = sizeof(buf);
+
+ while(len_in > 0) {
+ int written = write(conn->fd_helper, input, len_in);
+ if(written == -1) {
+ /* Interrupted by a signal, retry it */
+ if(errno == EINTR)
+ continue;
+ /* write failed if other errors happen */
+ goto done;
+ }
+ input += written;
+ len_in -= written;
+ }
+ /* Read one line */
+ while(len_out > 0) {
+ size = read(conn->fd_helper, tmpbuf, len_out);
+ if(size == -1) {
+ if(errno == EINTR)
+ continue;
+ goto done;
+ }
+ else if(size == 0)
+ goto done;
+ else if(tmpbuf[size - 1] == '\n') {
+ tmpbuf[size - 1] = '\0';
+ goto wrfinish;
+ }
+ tmpbuf += size;
+ len_out -= size;
+ }
+ goto done;
+wrfinish:
+ /* Samba/winbind installed but not configured */
+ if(state == NTLMSTATE_TYPE1 &&
+ size == 3 &&
+ buf[0] == 'P' && buf[1] == 'W')
+ return CURLE_REMOTE_ACCESS_DENIED;
+ /* invalid response */
+ if(size < 4)
+ goto done;
+ if(state == NTLMSTATE_TYPE1 &&
+ (buf[0]!='Y' || buf[1]!='R' || buf[2]!=' '))
+ goto done;
+ if(state == NTLMSTATE_TYPE2 &&
+ (buf[0]!='K' || buf[1]!='K' || buf[2]!=' ') &&
+ (buf[0]!='A' || buf[1]!='F' || buf[2]!=' '))
+ goto done;
+
+ conn->response_header = aprintf("NTLM %.*s", size - 4, buf + 3);
+ return CURLE_OK;
+done:
+ return CURLE_REMOTE_ACCESS_DENIED;
+}
+
+/*this is for creating ntlm header output by delegating challenge/response
+ *to a Samba's daemon helper ntlm_auth */
+CURLcode Curl_output_ntlm_sso(struct connectdata *conn,
+ bool proxy)
+{
+ /* point to the address of the pointer that holds the string to sent to the
+ server, which is for a plain host or for a HTTP proxy */
+ char **allocuserpwd;
+ /* point to the name and password for this */
+ const char *userp;
+ /* point to the correct struct with this */
+ struct ntlmdata *ntlm;
+ struct auth *authp;
+
+ CURLcode res = CURLE_OK;
+ char *input;
+
+ DEBUGASSERT(conn);
+ DEBUGASSERT(conn->data);
+
+ if(proxy) {
+ allocuserpwd = &conn->allocptr.proxyuserpwd;
+ userp = conn->proxyuser;
+ ntlm = &conn->proxyntlm;
+ authp = &conn->data->state.authproxy;
+ }
+ else {
+ allocuserpwd = &conn->allocptr.userpwd;
+ userp = conn->user;
+ ntlm = &conn->ntlm;
+ authp = &conn->data->state.authhost;
+ }
+ authp->done = FALSE;
+
+ /* not set means empty */
+ if(!userp)
+ userp="";
+
+ switch(ntlm->state) {
+ case NTLMSTATE_TYPE1:
+ default:
+ /* Use Samba's 'winbind' daemon to support NTLM single-sign-on,
+ * by delegating the NTLM challenge/response protocal to a helper
+ * in ntlm_auth.
+ * http://devel.squid-cache.org/ntlm/squid_helper_protocol.html
+ * http://www.samba.org/samba/docs/man/manpages-3/winbindd.8.html
+ * http://www.samba.org/samba/docs/man/manpages-3/ntlm_auth.1.html
+ * The preprocessor variable 'USE_NTLM_AUTH' indicates whether
+ * this feature is enabled. Another one 'NTLM_AUTH' contains absolute
+ * path of it.
+ * If NTLM single-sign-on fails, go back to original request
+ * handling process.
+ */
+ /* Clean data before using them */
+ conn->fd_helper = -1;
+ conn->pid = 0;
+ conn->challenge_header = NULL;
+ conn->response_header = NULL;
+ /* Create communication with ntlm_auth */
+ res = sso_ntlm_initiate(conn, userp);
+ if(res)
+ return res;
+ res = sso_ntlm_response(conn, "YR\n", ntlm->state);
+ if(res)
+ return res;
+
+ Curl_safefree(*allocuserpwd);
+ *allocuserpwd = aprintf("%sAuthorization: %s\r\n",
+ proxy?"Proxy-":"",
+ conn->response_header);
+ DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
+ Curl_safefree(conn->response_header);
+ conn->response_header = NULL;
+ break;
+ case NTLMSTATE_TYPE2:
+ input = aprintf("TT %s\n", conn->challenge_header);
+ res = sso_ntlm_response(conn,
+ input,
+ ntlm->state);
+ if(res)
+ return res;
+
+ Curl_safefree(*allocuserpwd);
+ *allocuserpwd = aprintf("%sAuthorization: %s\r\n",
+ proxy?"Proxy-":"",
+ conn->response_header);
+ DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
+ ntlm->state = NTLMSTATE_TYPE3; /* we sent a type-3 */
+ authp->done = TRUE;
+ sso_ntlm_close(conn);
+ free(input);
+ break;
+ case NTLMSTATE_TYPE3:
+ /* connection is already authenticated,
+ * don't send a header in future requests */
+ if(*allocuserpwd) {
+ free(*allocuserpwd);
+ *allocuserpwd=NULL;
+ }
+ authp->done = TRUE;
+ break;
+ }
+
+ return CURLE_OK;
+}
+#endif /* USE_NTLM_SSO */
+
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm(struct connectdata *conn,
bool proxy)
ntlm_sspi_cleanup(&conn->ntlm);
ntlm_sspi_cleanup(&conn->proxyntlm);
#else
+#ifdef USE_NTLM_SSO
+ sso_ntlm_close(conn);
+#endif
(void)conn;
#endif
}
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm(struct connectdata *conn, bool proxy);
+#ifdef USE_NTLM_SSO
+/* this is for creating ntlm header output by delegating challenge/response
+ * to a Samba's daemon helper ntlm_auth */
+CURLcode Curl_output_ntlm_sso(struct connectdata *conn, bool proxy);
+#endif
+
void Curl_ntlm_cleanup(struct connectdata *conn);
#ifndef USE_NTLM
#define Curl_ntlm_cleanup(x)
#if defined(USE_SSLEAY) || defined(USE_WINDOWS_SSPI) || \
defined(USE_GNUTLS) || defined(USE_NSS)
#define USE_NTLM
+#if defined(USE_NTLM_AUTH)
+/* Support NTLM single-sign-on by using Samba's winbind daemon helper
+ 'ntlm_auth' */
+#define USE_NTLM_SSO
+#endif
#endif
#endif
#ifndef USE_NTLM
auth &= ~CURLAUTH_NTLM; /* no NTLM without SSL */
#endif
+#ifndef USE_NTLM_SSO
+ auth &= ~CURLAUTH_NTLM_SSO; /* no NTLM single-sign-on without SSL
+ and ntlm_auth */
+#endif
#ifndef USE_HTTP_NEGOTIATE
auth &= ~CURLAUTH_GSSNEGOTIATE; /* no GSS-Negotiate without GSSAPI or
WINDOWS_SSPI */
#ifndef USE_NTLM
auth &= ~CURLAUTH_NTLM; /* no NTLM without SSL */
#endif
+#ifndef USE_NTLM_SSO
+ auth &= ~CURLAUTH_NTLM_SSO; /* no NTLM single-sign-on without SSL
+ and ntlm_auth */
+#endif
#ifndef USE_HTTP_NEGOTIATE
auth &= ~CURLAUTH_GSSNEGOTIATE; /* no GSS-Negotiate without GSSAPI or
WINDOWS_SSPI */
}
if((needle->handler->protocol & CURLPROTO_FTP) ||
((needle->handler->protocol & CURLPROTO_HTTP) &&
- (data->state.authhost.want==CURLAUTH_NTLM))) {
+ ((data->state.authhost.want==CURLAUTH_NTLM) ||
+ (data->state.authhost.want==CURLAUTH_NTLM_SSO)))) {
/* This is FTP or HTTP+NTLM, verify that we're using the same name
and password as well */
if(!strequal(needle->user, check->user) ||
single requests! */
struct ntlmdata proxyntlm; /* NTLM data for proxy */
+#ifdef USE_NTLM_SSO
+ /* data used for communication with Samba's winbind daemon helper
+ ntlm_auth */
+ int fd_helper;
+ pid_t pid;
+ char* challenge_header;
+ char* response_header;
+#endif
+
char syserr_buf [256]; /* buffer for Curl_strerror() */
#ifdef CURLRES_ASYNCH
#ifdef USE_NTLM
| CURL_VERSION_NTLM
#endif
+#ifdef USE_NTLM_SSO
+ | CURL_VERSION_NTLM_SSO
+#endif
#ifdef USE_WINDOWS_SSPI
| CURL_VERSION_SSPI
#endif
{"*k", "digest", FALSE},
{"*l", "negotiate", FALSE},
{"*m", "ntlm", FALSE},
+ {"*M", "ntlm-sso", FALSE},
{"*n", "basic", FALSE},
{"*o", "anyauth", FALSE},
#ifdef USE_WATT32
config->authtype &= ~CURLAUTH_NTLM;
break;
+ case 'M': /* --ntlm-sso */
+ if(toggle) {
+ if(curlinfo->features & CURL_VERSION_NTLM_SSO)
+ config->authtype |= CURLAUTH_NTLM_SSO;
+ else
+ return PARAM_LIBCURL_DOESNT_SUPPORT;
+ }
+ else
+ config->authtype &= ~CURLAUTH_NTLM_SSO;
+ break;
+
case 'n': /* --basic for completeness */
if(toggle)
config->authtype |= CURLAUTH_BASIC;
{"IPv6", CURL_VERSION_IPV6},
{"Largefile", CURL_VERSION_LARGEFILE},
{"NTLM", CURL_VERSION_NTLM},
+ {"NTLM_SSO", CURL_VERSION_NTLM_SSO},
{"SPNEGO", CURL_VERSION_SPNEGO},
{"SSL", CURL_VERSION_SSL},
{"SSPI", CURL_VERSION_SSPI},
projects / platform / upstream / curl.git / commitdiff