265 lines
6.4 KiB
C
265 lines
6.4 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2008 Novell, Inc.
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* Copyright (C) 2008 - 2009 Red Hat, Inc.
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*/
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#include <string.h>
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#include <pppd/pppd.h>
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#include <pppd/fsm.h>
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#include <pppd/ipcp.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <glib.h>
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int plugin_init (void);
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char pppd_version[] = VERSION;
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char *my_user = NULL;
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char *my_pass = NULL;
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char *my_file = NULL;
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static void
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mm_phasechange (void *data, int arg)
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{
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const char *ppp_phase = NULL;
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switch (arg) {
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case PHASE_DEAD:
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ppp_phase = "dead";
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break;
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case PHASE_INITIALIZE:
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ppp_phase = "initialize";
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break;
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case PHASE_SERIALCONN:
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ppp_phase = "serial connection";
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break;
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case PHASE_DORMANT:
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ppp_phase = "dormant";
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break;
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case PHASE_ESTABLISH:
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ppp_phase = "establish";
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break;
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case PHASE_AUTHENTICATE:
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ppp_phase = "authenticate";
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break;
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case PHASE_CALLBACK:
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ppp_phase = "callback";
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break;
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case PHASE_NETWORK:
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ppp_phase = "network";
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break;
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case PHASE_RUNNING:
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ppp_phase = "running";
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break;
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case PHASE_TERMINATE:
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ppp_phase = "terminate";
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break;
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case PHASE_DISCONNECT:
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ppp_phase = "disconnect";
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break;
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case PHASE_HOLDOFF:
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ppp_phase = "holdoff";
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break;
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case PHASE_MASTER:
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ppp_phase = "master";
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break;
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default:
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ppp_phase = "unknown";
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break;
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}
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g_message ("mm-test-ppp-plugin: (%s): phase now '%s'", __func__, ppp_phase);
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}
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static void
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append_ip4_addr (GString *str, const char *tag, guint32 addr)
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{
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char buf[INET_ADDRSTRLEN + 2];
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struct in_addr tmp_addr = { .s_addr = addr };
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memset (buf, 0, sizeof (buf));
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if (inet_ntop (AF_INET, &tmp_addr, buf, sizeof (buf) - 1))
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g_string_append_printf (str, "%s %s\n", tag, buf);
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}
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static void
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mm_ip_up (void *data, int arg)
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{
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ipcp_options opts = ipcp_gotoptions[0];
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ipcp_options peer_opts = ipcp_hisoptions[0];
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guint32 pppd_made_up_address = htonl (0x0a404040 + ifunit);
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GString *contents;
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GError *err = NULL;
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gboolean success;
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g_message ("mm-test-ppp-plugin: (%s): ip-up event", __func__);
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if (!opts.ouraddr) {
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g_warning ("mm-test-ppp-plugin: (%s): didn't receive an internal IP from pppd!", __func__);
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mm_phasechange (NULL, PHASE_DEAD);
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return;
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}
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contents = g_string_sized_new (100);
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g_string_append_printf (contents, "iface %s\n", ifname);
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append_ip4_addr (contents, "addr", opts.ouraddr);
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/* Prefer the peer options remote address first, _unless_ pppd made the
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* address up, at which point prefer the local options remote address,
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* and if that's not right, use the made-up address as a last resort.
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*/
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if (peer_opts.hisaddr && (peer_opts.hisaddr != pppd_made_up_address))
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append_ip4_addr (contents, "gateway", peer_opts.hisaddr);
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else if (opts.hisaddr)
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append_ip4_addr (contents, "gateway", opts.hisaddr);
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else if (peer_opts.hisaddr == pppd_made_up_address) {
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/* As a last resort, use the made-up address */
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append_ip4_addr (contents, "gateway", peer_opts.hisaddr);
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}
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if (opts.dnsaddr[0] || opts.dnsaddr[1]) {
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if (opts.dnsaddr[0])
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append_ip4_addr (contents, "dns1", opts.dnsaddr[0]);
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if (opts.dnsaddr[1])
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append_ip4_addr (contents, "dns2", opts.dnsaddr[1]);
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}
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if (opts.winsaddr[0] || opts.winsaddr[1]) {
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if (opts.winsaddr[0])
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append_ip4_addr (contents, "wins1", opts.winsaddr[0]);
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if (opts.winsaddr[1])
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append_ip4_addr (contents, "wins2", opts.winsaddr[1]);
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}
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g_string_append (contents, "DONE\n");
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success = g_file_set_contents (my_file, contents->str, -1, &err);
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if (success)
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g_message ("nm-ppp-plugin: (%s): saved IP4 config to %s", __func__, my_file);
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else {
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g_message ("nm-ppp-plugin: (%s): error saving IP4 config to %s: (%d) %s",
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__func__, my_file, err->code, err->message);
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g_clear_error (&err);
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}
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g_string_free (contents, TRUE);
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}
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static int
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get_chap_check()
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{
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return 1;
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}
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static int
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get_pap_check()
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{
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return 1;
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}
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static int
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get_credentials (char *username, char *password)
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{
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size_t len;
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if (username && !password) {
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/* pppd is checking pap support; return 1 for supported */
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return 1;
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}
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g_message ("nm-ppp-plugin: (%s): sending credentials (%s / %s)",
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__func__,
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my_user ? my_user : "",
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my_pass ? my_pass : "");
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if (my_user) {
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len = strlen (my_user) + 1;
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len = len < MAXNAMELEN ? len : MAXNAMELEN;
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strncpy (username, my_user, len);
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username[len - 1] = '\0';
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}
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if (my_pass) {
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len = strlen (my_pass) + 1;
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len = len < MAXSECRETLEN ? len : MAXSECRETLEN;
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strncpy (password, my_pass, len);
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password[len - 1] = '\0';
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}
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return 1;
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}
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static void
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mm_exit_notify (void *data, int arg)
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{
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g_message ("mm-test-ppp-plugin: (%s): cleaning up", __func__);
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g_free (my_user);
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my_user = NULL;
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g_free (my_pass);
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my_pass = NULL;
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g_free (my_file);
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my_file = NULL;
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}
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int
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plugin_init (void)
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{
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char **args;
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g_message ("mm-test-ppp-plugin: (%s): initializing", __func__);
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/* mm-test passes the file + username + password in as the 'ipparam' arg
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* to pppd.
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*/
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args = g_strsplit (ipparam, "+", 0);
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if (!args || g_strv_length (args) != 3) {
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g_message ("mm-test-ppp-plugin: (%s): ipparam arguments error ('%s')",
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__func__, ipparam);
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return -1;
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}
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my_user = (args[0] && strlen (args[0])) ? g_strdup (args[0]) : NULL;
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my_pass = (args[1] && strlen (args[1])) ? g_strdup (args[1]) : NULL;
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my_file = (args[2] && strlen (args[2])) ? g_strdup (args[2]) : NULL;
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g_strfreev (args);
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if (!my_file) {
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g_message ("mm-test-ppp-plugin: (%s): missing IP config file",
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__func__);
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return -1;
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}
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chap_passwd_hook = get_credentials;
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chap_check_hook = get_chap_check;
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pap_passwd_hook = get_credentials;
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pap_check_hook = get_pap_check;
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add_notifier (&phasechange, mm_phasechange, NULL);
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add_notifier (&ip_up_notifier, mm_ip_up, NULL);
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add_notifier (&exitnotify, mm_exit_notify, NULL);
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return 0;
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}
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