/*
- * "$Id: auth.c 6499 2007-04-30 21:44:43Z mike $"
+ * "$Id: auth.c 6673 2007-07-14 00:16:39Z mike $"
*
* Authentication functions for the Common UNIX Printing System (CUPS).
*
+ * Copyright 2007 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products.
*
* This file contains Kerberos support code, copyright 2006 by
* Jelmer Vernooij.
*
* These coded instructions, statements, and computer programs are the
- * property of Easy Software Products and are protected by Federal
- * copyright law. Distribution and use rights are outlined in the file
- * "LICENSE.txt" which should have been included with this file. If this
- * file is missing or damaged please contact Easy Software Products
- * at:
- *
- * Attn: CUPS Licensing Information
- * Easy Software Products
- * 44141 Airport View Drive, Suite 204
- * Hollywood, Maryland 20636 USA
- *
- * Voice: (301) 373-9600
- * EMail: cups-info@cups.org
- * WWW: http://www.cups.org
+ * property of Apple Inc. and are protected by Federal copyright
+ * law. Distribution and use rights are outlined in the file "LICENSE.txt"
+ * which should have been included with this file. If this file is
+ * file is missing or damaged, see the license at "http://www.cups.org/".
*
* This file is subject to the Apple OS-Developed Software exception.
*
# endif /* HAVE_SECBASEPRIV_H */
#endif /* HAVE_AUTHORIZATION_H */
+#if defined(SO_PEERCRED) && defined(AF_LOCAL)
+# include <pwd.h>
+#endif /* SO_PEERCRED && AF_LOCAL */
+
/*
* Local functions...
if (!strncmp(http->fields[HTTP_FIELD_WWW_AUTHENTICATE], "Negotiate", 9))
{
+ if (http->status == HTTP_UNAUTHORIZED && http->digest_tries >= 3)
+ {
+ DEBUG_printf(("cupsDoAuthentication: too many Negotiate tries (%d)\n",
+ http->digest_tries));
+
+ return (-1);
+ }
#ifdef HAVE_GSSAPI
/*
* Kerberos authentication...
* back into gss via input_token...
*/
}
- else
+
+ if (http->gssctx != GSS_C_NO_CONTEXT)
{
- if (http->gssctx != GSS_C_NO_CONTEXT)
- {
- major_status = gss_delete_sec_context(&minor_status, &http->gssctx,
- GSS_C_NO_BUFFER);
- http->gssctx = GSS_C_NO_CONTEXT;
- }
+ major_status = gss_delete_sec_context(&minor_status, &http->gssctx,
+ GSS_C_NO_BUFFER);
+ http->gssctx = GSS_C_NO_CONTEXT;
}
major_status = gss_init_sec_context(&minor_status, GSS_C_NO_CREDENTIAL,
&http->gssctx,
http->gssname, http->gssmech,
- GSS_C_MUTUAL_FLAG, GSS_C_INDEFINITE,
+ GSS_C_DELEG_FLAG | GSS_C_MUTUAL_FLAG,
+ GSS_C_INDEFINITE,
GSS_C_NO_CHANNEL_BINDINGS,
&input_token, &http->gssmech,
&output_token, NULL, NULL);
{
gss_buffer_desc token = GSS_C_EMPTY_BUFFER;
/* Service token */
- OM_uint32 major_status, /* Major status code */
- minor_status; /* Minor status code */
- gss_name_t server_name; /* Server name */
- char buf[1024], /* Name buffer */
- fqdn[HTTP_MAX_URI]; /* Server name buffer */
+ OM_uint32 major_status, /* Major status code */
+ minor_status; /* Minor status code */
+ gss_name_t server_name; /* Server name */
+ char buf[1024], /* Name buffer */
+ fqdn[HTTP_MAX_URI]; /* Server name buffer */
+
+
+ /*
+ * Get the hostname...
+ */
+ httpGetHostname(http, fqdn, sizeof(fqdn));
+
+ if (!strcmp(fqdn, "localhost"))
+ httpGetHostname(NULL, fqdn, sizeof(fqdn));
/*
* Get a server name we can use for authentication purposes...
*/
- snprintf(buf, sizeof(buf), "%s@%s", service_name,
- httpGetHostname(http, fqdn, sizeof(fqdn)));
+ snprintf(buf, sizeof(buf), "%s@%s", service_name, fqdn);
token.value = buf;
token.length = strlen(buf);
*/
static int /* O - 0 if available */
- /* 1 if not available */
+ /* 1 if not available */
/* -1 error */
cups_local_auth(http_t *http) /* I - HTTP connection to server */
{
* Currently WIN32 and OS-2 do not support the CUPS server...
*/
- return (-1);
+ return (1);
#else
int pid; /* Current process ID */
FILE *fp; /* Certificate file */
char filename[1024], /* Certificate filename */
certificate[33];/* Certificate string */
_cups_globals_t *cg = _cupsGlobals(); /* Global data */
-#if defined(HAVE_AUTHORIZATION_H)
+# if defined(HAVE_AUTHORIZATION_H)
OSStatus status; /* Status */
AuthorizationItem auth_right; /* Authorization right */
AuthorizationRights auth_rights; /* Authorization rights */
AuthorizationExternalForm auth_extrn; /* Authorization ref external */
char auth_key[1024]; /* Buffer */
char buffer[1024]; /* Buffer */
-#endif /* HAVE_AUTHORIZATION_H */
+# endif /* HAVE_AUTHORIZATION_H */
DEBUG_printf(("cups_local_auth(http=%p) hostaddr=%s, hostname=\"%s\"\n",
strcasecmp(http->hostname, "localhost") != 0)
{
DEBUG_puts("cups_local_auth: Not a local connection!");
- return (-1);
+ return (1);
}
-#if defined(HAVE_AUTHORIZATION_H)
+# if defined(HAVE_AUTHORIZATION_H)
/*
* Delete any previous authorization reference...
*/
* Fall through to try certificates...
*/
}
-#endif /* HAVE_AUTHORIZATION_H */
+# endif /* HAVE_AUTHORIZATION_H */
/*
* Try opening a certificate file for this PID. If that fails,
DEBUG_printf(("cups_local_auth: Unable to open file %s: %s\n",
filename, strerror(errno)));
+#ifdef HAVE_GSSAPI
+ /*
+ * If local certificate authentication isn't available for this PID,
+ * check if we need Kerberos authentication...
+ */
+
+ if (!strcmp(http->fields[HTTP_FIELD_WWW_AUTHENTICATE], "Negotiate"))
+ {
+ /*
+ * Yes, don't try the root certificate...
+ */
+
+ return (1);
+ }
+#endif /* HAVE_GSSAPI */
+
snprintf(filename, sizeof(filename), "%s/certs/0", cg->cups_statedir);
fp = fopen(filename, "r");
}
* Set the authorization string and return...
*/
- http->authstring = malloc(strlen(certificate) + 10);
+ http->authstring = malloc(strlen(certificate) + 7);
sprintf(http->authstring, "Local %s", certificate);
/* Copy back to _authstring for backwards compatibility */
return (0);
}
+# if defined(SO_PEERCRED) && defined(AF_LOCAL)
+ /*
+ * See if we can authenticate using the peer credentials provided over a
+ * domain socket; if so, specify "PeerCred username" as the authentication
+ * information...
+ */
+
+ if (http->hostaddr->addr.sa_family == AF_LOCAL &&
+ !getenv("GATEWAY_INTERFACE")) /* Not via CGI programs... */
+ {
+ /*
+ * Verify that the current cupsUser() matches the current UID...
+ */
+
+ struct passwd *pwd; /* Password information */
+ const char *username; /* Current username */
+
+ username = cupsUser();
+
+ if ((pwd = getpwnam(username)) != NULL && pwd->pw_uid == getuid())
+ {
+ http->authstring = malloc(strlen(username) + 10);
+ sprintf(http->authstring, "PeerCred %s", username);
+
+ /* Copy back to _authstring for backwards compatibility */
+ strlcpy(http->_authstring, http->authstring, sizeof(http->_authstring));
+
+ DEBUG_printf(("cups_local_auth: Returning authstring = \"%s\"\n",
+ http->authstring));
+
+ return (0);
+ }
+ }
+# endif /* SO_PEERCRED && AF_LOCAL */
+
return (1);
#endif /* WIN32 || __EMX__ */
}
/*
- * End of "$Id: auth.c 6499 2007-04-30 21:44:43Z mike $".
+ * End of "$Id: auth.c 6673 2007-07-14 00:16:39Z mike $".
*/
projects / thirdparty / cups.git / blobdiff