Adding upstream version 1.8.27.upstream/1.8.27upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 154 insertions, 0 deletions

diff --git a/plugins/sudoers/auth/fwtk.c b/plugins/sudoers/auth/fwtk.c
new file mode 100644
index 0000000..36f7cd8
--- /dev/null
+++ b/plugins/sudoers/auth/fwtk.c
@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 1999-2005, 2008, 2010-2015
+ *	Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F39502-99-1-0512.
+ */
+
+/*
+ * This is an open source non-commercial project. Dear PVS-Studio, please check it.
+ * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+ */
+
+#include <config.h>
+
+#ifdef HAVE_FWTK
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_STRING_H
+# include <string.h>
+#endif /* HAVE_STRING_H */
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif /* HAVE_STRING_H */
+#include <unistd.h>
+#include <pwd.h>
+
+#include <auth.h>
+#include <firewall.h>
+
+#include "sudoers.h"
+#include "sudo_auth.h"
+
+int
+sudo_fwtk_init(struct passwd *pw, sudo_auth *auth)
+{
+    static Cfg *confp;			/* Configuration entry struct */
+    char resp[128];			/* Response from the server */
+    debug_decl(sudo_fwtk_init, SUDOERS_DEBUG_AUTH)
+
+    if ((confp = cfg_read("sudo")) == (Cfg *)-1) {
+	sudo_warnx(U_("unable to read fwtk config"));
+	debug_return_int(AUTH_FATAL);
+    }
+
+    if (auth_open(confp)) {
+	sudo_warnx(U_("unable to connect to authentication server"));
+	debug_return_int(AUTH_FATAL);
+    }
+
+    /* Get welcome message from auth server */
+    if (auth_recv(resp, sizeof(resp))) {
+	sudo_warnx(U_("lost connection to authentication server"));
+	debug_return_int(AUTH_FATAL);
+    }
+    if (strncmp(resp, "Authsrv ready", 13) != 0) {
+	sudo_warnx(U_("authentication server error:\n%s"), resp);
+	debug_return_int(AUTH_FATAL);
+    }
+
+    debug_return_int(AUTH_SUCCESS);
+}
+
+int
+sudo_fwtk_verify(struct passwd *pw, char *prompt, sudo_auth *auth, struct sudo_conv_callback *callback)
+{
+    char *pass;				/* Password from the user */
+    char buf[SUDO_CONV_REPL_MAX + 12];	/* General prupose buffer */
+    char resp[128];			/* Response from the server */
+    int error;
+    debug_decl(sudo_fwtk_verify, SUDOERS_DEBUG_AUTH)
+
+    /* Send username to authentication server. */
+    (void) snprintf(buf, sizeof(buf), "authorize %s 'sudo'", pw->pw_name);
+restart:
+    if (auth_send(buf) || auth_recv(resp, sizeof(resp))) {
+	sudo_warnx(U_("lost connection to authentication server"));
+	debug_return_int(AUTH_FATAL);
+    }
+
+    /* Get the password/response from the user. */
+    if (strncmp(resp, "challenge ", 10) == 0) {
+	(void) snprintf(buf, sizeof(buf), "%s\nResponse: ", &resp[10]);
+	pass = auth_getpass(buf, SUDO_CONV_PROMPT_ECHO_OFF, callback);
+	if (pass && *pass == '\0') {
+	    free(pass);
+	    pass = auth_getpass("Response [echo on]: ",
+		SUDO_CONV_PROMPT_ECHO_ON, callback);
+	}
+    } else if (strncmp(resp, "chalnecho ", 10) == 0) {
+	pass = auth_getpass(&resp[10], SUDO_CONV_PROMPT_ECHO_OFF, callback);
+    } else if (strncmp(resp, "password", 8) == 0) {
+	pass = auth_getpass(prompt, SUDO_CONV_PROMPT_ECHO_OFF, callback);
+    } else if (strncmp(resp, "display ", 8) == 0) {
+	sudo_printf(SUDO_CONV_INFO_MSG, "%s\n", &resp[8]);
+	strlcpy(buf, "response dummy", sizeof(buf));
+	goto restart;
+    } else {
+	sudo_warnx("%s", resp);
+	debug_return_int(AUTH_FATAL);
+    }
+    if (!pass) {			/* ^C or error */
+	debug_return_int(AUTH_INTR);
+    }
+
+    /* Send the user's response to the server */
+    (void) snprintf(buf, sizeof(buf), "response '%s'", pass);
+    if (auth_send(buf) || auth_recv(resp, sizeof(resp))) {
+	sudo_warnx(U_("lost connection to authentication server"));
+	error = AUTH_FATAL;
+	goto done;
+    }
+
+    if (strncmp(resp, "ok", 2) == 0) {
+	error = AUTH_SUCCESS;
+	goto done;
+    }
+
+    /* Main loop prints "Permission Denied" or insult. */
+    if (strcmp(resp, "Permission Denied.") != 0)
+	sudo_warnx("%s", resp);
+    error = AUTH_FAILURE;
+done:
+    memset_s(buf, sizeof(buf), 0, sizeof(buf));
+    memset_s(pass, SUDO_PASS_MAX, 0, strlen(pass));
+    free(pass);
+    debug_return_int(error);
+}
+
+int
+sudo_fwtk_cleanup(struct passwd *pw, sudo_auth *auth)
+{
+    debug_decl(sudo_fwtk_cleanup, SUDOERS_DEBUG_AUTH)
+
+    auth_close();
+    debug_return_int(AUTH_SUCCESS);
+}
+
+#endif /* HAVE_FWTK */