mirror of git://git.sysmocom.de/ofono
Split out ipcp protocol into ppp_ipcp.c
This commit is contained in:
parent
c2a589e732
commit
1ed6966cb4
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@ -59,7 +59,8 @@ gatchat_sources = gatchat/gatchat.h gatchat/gatchat.c \
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gatchat/gatppp.c gatchat/gatppp.h \
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gatchat/ppp.h gatchat/ppp_cp.h \
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gatchat/ppp_cp.c gatchat/ppp_lcp.c \
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gatchat/ppp_auth.c gatchat/ppp_net.c
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gatchat/ppp_auth.c gatchat/ppp_net.c \
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gatchat/ppp_ipcp.c
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udev_files = plugins/ofono.rules
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@ -389,11 +389,10 @@ static void ppp_dead(GAtPPP *ppp)
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g_source_remove(ppp->modem_watch);
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g_io_channel_unref(ppp->modem);
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/* remove lcp */
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lcp_free(ppp->lcp);
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/* remove auth */
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auth_free(ppp->auth);
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ipcp_free(ppp->ipcp);
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ppp_net_free(ppp->net);
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g_free(ppp);
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}
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@ -427,6 +426,7 @@ static void ppp_transition_phase(GAtPPP *ppp, enum ppp_phase phase)
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case PPP_NETWORK:
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/* bring network phase up */
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ppp_net_open(ppp->net);
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pppcp_generate_event(ppp->ipcp, OPEN, NULL, 0);
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break;
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}
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}
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@ -625,6 +625,9 @@ GAtPPP *g_at_ppp_new(GIOChannel *modem)
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/* initialize the autentication state */
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ppp->auth = auth_new(ppp);
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/* initialize IPCP state */
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ppp->ipcp = ipcp_new(ppp);
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/* intialize the network state */
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ppp->net = ppp_net_new(ppp);
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@ -31,6 +31,7 @@
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#define LCP_PROTOCOL 0xc021
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#define CHAP_PROTOCOL 0xc223
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#define IPCP_PROTO 0x8021
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#define PPP_IP_PROTO 0x0021
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#define PPP_HEADROOM 2
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#define HDLC_HEADROOM 3
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#define HDLC_TAIL 3
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@ -110,7 +111,6 @@ struct ppp_net_data {
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GAtPPP *ppp;
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char *if_name;
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GIOChannel *channel;
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struct pppcp_data *ipcp;
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};
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struct _GAtPPP {
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@ -118,6 +118,7 @@ struct _GAtPPP {
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enum ppp_phase phase;
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struct pppcp_data *lcp;
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struct auth_data *auth;
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struct pppcp_data *ipcp;
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struct ppp_net_data *net;
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guint8 buffer[BUFFERSZ];
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int index;
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@ -165,3 +166,5 @@ struct ppp_net_data *ppp_net_new(GAtPPP *ppp);
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void ppp_net_open(struct ppp_net_data *data);
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void ppp_net_free(struct ppp_net_data *data);
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void ppp_net_close(struct ppp_net_data *data);
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struct pppcp_data *ipcp_new(GAtPPP *ppp);
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void ipcp_free(struct pppcp_data *data);
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@ -0,0 +1,243 @@
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/*
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*
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* PPP library with GLib integration
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*
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* Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
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*
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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 version 2 as
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* published by the Free Software Foundation.
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <termios.h>
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#include <arpa/inet.h>
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#include <glib.h>
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#include "gatutil.h"
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#include "gatppp.h"
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#include "ppp.h"
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struct ipcp_data {
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guint8 ip_address[4];
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guint8 primary_dns[4];
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guint8 secondary_dns[4];
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guint8 primary_nbns[4];
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guint8 secondary_nbns[4];
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struct pppcp_data *pppcp;
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};
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#define IPCP_SUPPORTED_CODES ((1 << CONFIGURE_REQUEST) | \
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(1 << CONFIGURE_ACK) | \
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(1 << CONFIGURE_NAK) | \
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(1 << CONFIGURE_REJECT) | \
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(1 << TERMINATE_REQUEST) | \
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(1 << TERMINATE_ACK) | \
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(1 << CODE_REJECT))
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enum ipcp_option_types {
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IP_ADDRESSES = 1,
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IP_COMPRESSION_PROTO = 2,
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IP_ADDRESS = 3,
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MOBILE_IPV4 = 4,
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PRIMARY_DNS_SERVER = 129,
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PRIMARY_NBNS_SERVER = 130,
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SECONDARY_DNS_SERVER = 131,
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SECONDARY_NBNS_SERVER = 132,
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};
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static void ipcp_up(struct pppcp_data *pppcp)
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{
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struct ipcp_data *data = pppcp->priv;
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GAtPPP *ppp = pppcp->ppp;
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char ip[INET_ADDRSTRLEN];
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char dns1[INET_ADDRSTRLEN];
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char dns2[INET_ADDRSTRLEN];
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struct in_addr addr;
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if (ppp->connect_cb == NULL)
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return;
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memset(ip, 0, sizeof(ip));
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addr.s_addr = __get_unaligned_long(data->ip_address);
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inet_ntop(AF_INET, &addr, ip, INET_ADDRSTRLEN);
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memset(dns1, 0, sizeof(dns1));
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addr.s_addr = __get_unaligned_long(data->primary_dns);
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inet_ntop(AF_INET, &addr, dns1, INET_ADDRSTRLEN);
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memset(dns2, 0, sizeof(dns2));
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addr.s_addr = __get_unaligned_long(data->secondary_dns);
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inet_ntop(AF_INET, &addr, dns2, INET_ADDRSTRLEN);
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ppp->connect_cb(G_AT_PPP_CONNECT_SUCCESS,
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pppcp->ppp->net->if_name,
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ip[0] ? ip : NULL,
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dns1[0] ? dns1 : NULL,
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dns2[0] ? dns2 : NULL,
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ppp->connect_data);
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}
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static void ipcp_down(struct pppcp_data *data)
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{
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g_print("ipcp down\n");
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/* re-add what default config options we want negotiated */
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}
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/*
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* Tell the protocol to start the handshake
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*/
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static void ipcp_started(struct pppcp_data *data)
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{
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pppcp_generate_event(data, UP, NULL, 0);
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}
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static void ipcp_finished(struct pppcp_data *data)
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{
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g_print("ipcp finished\n");
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}
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/*
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* Scan the option to see if it is acceptable, unacceptable, or rejected
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*/
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static guint ipcp_option_scan(struct ppp_option *option, gpointer user)
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{
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switch (option->type) {
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case IP_ADDRESS:
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case PRIMARY_DNS_SERVER:
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case PRIMARY_NBNS_SERVER:
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case SECONDARY_DNS_SERVER:
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case SECONDARY_NBNS_SERVER:
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return OPTION_ACCEPT;
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default:
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g_printerr("Unknown ipcp option type %d\n", option->type);
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return OPTION_REJECT;
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}
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}
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/*
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* act on an acceptable option
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*/
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static void ipcp_option_process(gpointer data, gpointer user)
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{
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struct ppp_option *option = data;
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struct ipcp_data *ipcp = user;
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switch (option->type) {
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case IP_ADDRESS:
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memcpy(ipcp->ip_address, option->data, 4);
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break;
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case PRIMARY_DNS_SERVER:
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memcpy(ipcp->primary_dns, option->data, 4);
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break;
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case PRIMARY_NBNS_SERVER:
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memcpy(ipcp->primary_nbns, option->data, 4);
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break;
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case SECONDARY_DNS_SERVER:
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memcpy(ipcp->secondary_dns, option->data, 4);
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break;
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case SECONDARY_NBNS_SERVER:
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memcpy(ipcp->secondary_nbns, option->data, 4);
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break;
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default:
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g_printerr("Unable to process unknown option %d\n", option->type);
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break;
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}
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}
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struct pppcp_action ipcp_action = {
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.this_layer_up = ipcp_up,
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.this_layer_down = ipcp_down,
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.this_layer_started = ipcp_started,
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.this_layer_finished = ipcp_finished,
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.option_scan = ipcp_option_scan,
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.option_process = ipcp_option_process,
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};
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static const char *ipcp_option_strings[256] = {
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[IP_ADDRESSES] = "IP-Addresses (deprecated)",
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[IP_COMPRESSION_PROTO] = "IP-Compression-Protocol",
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[IP_ADDRESS] = "IP-Address",
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[MOBILE_IPV4] = "Mobile-IPv4",
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[PRIMARY_DNS_SERVER] = "Primary DNS Server Address",
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[PRIMARY_NBNS_SERVER] = "Primary NBNS Server Address",
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[SECONDARY_DNS_SERVER] = "Secondary DNS Server Address",
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[SECONDARY_NBNS_SERVER] = "Secondary NBNS Server Address",
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};
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struct ppp_packet_handler ipcp_packet_handler = {
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.proto = IPCP_PROTO,
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.handler = pppcp_process_packet,
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};
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struct pppcp_data *ipcp_new(GAtPPP *ppp)
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{
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struct ipcp_data *data;
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struct pppcp_data *pppcp;
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struct ppp_option *ipcp_option;
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data = g_try_malloc0(sizeof(*data));
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if (!data)
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return NULL;
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pppcp = pppcp_new(ppp, IPCP_PROTO);
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if (!pppcp) {
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g_printerr("Failed to allocate PPPCP struct\n");
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g_free(data);
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return NULL;
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}
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pppcp_set_valid_codes(pppcp, IPCP_SUPPORTED_CODES);
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pppcp->option_strings = ipcp_option_strings;
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pppcp->prefix = "ipcp";
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pppcp->priv = data;
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/* set the actions */
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pppcp->action = &ipcp_action;
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/* add the default config options */
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ipcp_option = g_try_malloc0(6);
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if (!ipcp_option) {
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pppcp_free(pppcp);
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g_free(data);
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return NULL;
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}
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ipcp_option->type = IP_ADDRESS;
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ipcp_option->length= 6;
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pppcp_add_config_option(pppcp, ipcp_option);
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/* register packet handler for IPCP protocol */
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ipcp_packet_handler.priv = pppcp;
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ppp_register_packet_handler(&ipcp_packet_handler);
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return pppcp;
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}
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void ipcp_free(struct pppcp_data *data)
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{
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struct ipcp_data *ipcp = data->priv;
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/* TBD unregister IPCP packet handler */
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/* free ipcp */
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g_free(ipcp);
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/* free pppcp */
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pppcp_free(data);
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}
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@ -27,11 +27,10 @@
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <termios.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <linux/if_tun.h>
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#include <sys/ioctl.h>
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#include <glib.h>
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#include "gatutil.h"
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@ -40,16 +39,6 @@
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/* XXX should be maximum IP Packet size */
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#define MAX_PACKET 1500
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#define PPP_IP_PROTO 0x0021
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struct ipcp_data {
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guint8 ip_address[4];
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guint8 primary_dns[4];
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guint8 secondary_dns[4];
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guint8 primary_nbns[4];
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guint8 secondary_nbns[4];
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struct pppcp_data *pppcp;
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};
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static void ip_process_packet(gpointer priv, guint8 *packet)
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{
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@ -152,8 +141,6 @@ void ppp_net_open(struct ppp_net_data *data)
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signal_source = g_io_add_watch(channel,
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G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
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ppp_net_callback, (gpointer) data);
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pppcp_generate_event(data->ipcp, OPEN, NULL, 0);
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}
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struct ppp_packet_handler ip_packet_handler = {
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@ -161,204 +148,6 @@ struct ppp_packet_handler ip_packet_handler = {
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.handler = ip_process_packet,
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};
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#define IPCP_SUPPORTED_CODES ((1 << CONFIGURE_REQUEST) | \
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(1 << CONFIGURE_ACK) | \
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(1 << CONFIGURE_NAK) | \
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(1 << CONFIGURE_REJECT) | \
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(1 << TERMINATE_REQUEST) | \
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(1 << TERMINATE_ACK) | \
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(1 << CODE_REJECT))
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enum ipcp_option_types {
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IP_ADDRESSES = 1,
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IP_COMPRESSION_PROTO = 2,
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IP_ADDRESS = 3,
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MOBILE_IPV4 = 4,
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PRIMARY_DNS_SERVER = 129,
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PRIMARY_NBNS_SERVER = 130,
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SECONDARY_DNS_SERVER = 131,
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SECONDARY_NBNS_SERVER = 132,
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};
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static void ipcp_up(struct pppcp_data *pppcp)
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{
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struct ipcp_data *data = pppcp->priv;
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GAtPPP *ppp = pppcp->ppp;
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char ip[INET_ADDRSTRLEN];
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char dns1[INET_ADDRSTRLEN];
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char dns2[INET_ADDRSTRLEN];
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struct in_addr addr;
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if (ppp->connect_cb == NULL)
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return;
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memset(ip, 0, sizeof(ip));
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addr.s_addr = __get_unaligned_long(data->ip_address);
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inet_ntop(AF_INET, &addr, ip, INET_ADDRSTRLEN);
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memset(dns1, 0, sizeof(dns1));
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addr.s_addr = __get_unaligned_long(data->primary_dns);
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inet_ntop(AF_INET, &addr, dns1, INET_ADDRSTRLEN);
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memset(dns2, 0, sizeof(dns2));
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addr.s_addr = __get_unaligned_long(data->secondary_dns);
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inet_ntop(AF_INET, &addr, dns2, INET_ADDRSTRLEN);
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ppp->connect_cb(G_AT_PPP_CONNECT_SUCCESS,
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pppcp->ppp->net->if_name,
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ip[0] ? ip : NULL,
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dns1[0] ? dns1 : NULL,
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dns2[0] ? dns2 : NULL,
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ppp->connect_data);
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}
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static void ipcp_down(struct pppcp_data *data)
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{
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g_print("ipcp down\n");
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/* re-add what default config options we want negotiated */
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}
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/*
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* Tell the protocol to start the handshake
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*/
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static void ipcp_started(struct pppcp_data *data)
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{
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pppcp_generate_event(data, UP, NULL, 0);
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}
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static void ipcp_finished(struct pppcp_data *data)
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{
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g_print("ipcp finished\n");
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}
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/*
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* Scan the option to see if it is acceptable, unacceptable, or rejected
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*/
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static guint ipcp_option_scan(struct ppp_option *option, gpointer user)
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{
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switch (option->type) {
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case IP_ADDRESS:
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case PRIMARY_DNS_SERVER:
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case PRIMARY_NBNS_SERVER:
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case SECONDARY_DNS_SERVER:
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case SECONDARY_NBNS_SERVER:
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return OPTION_ACCEPT;
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default:
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g_printerr("Unknown ipcp option type %d\n", option->type);
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return OPTION_REJECT;
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}
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}
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/*
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* act on an acceptable option
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*/
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static void ipcp_option_process(gpointer data, gpointer user)
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{
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struct ppp_option *option = data;
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struct ipcp_data *ipcp = user;
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switch (option->type) {
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case IP_ADDRESS:
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memcpy(ipcp->ip_address, option->data, 4);
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break;
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case PRIMARY_DNS_SERVER:
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memcpy(ipcp->primary_dns, option->data, 4);
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break;
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case PRIMARY_NBNS_SERVER:
|
||||
memcpy(ipcp->primary_nbns, option->data, 4);
|
||||
break;
|
||||
case SECONDARY_DNS_SERVER:
|
||||
memcpy(ipcp->secondary_dns, option->data, 4);
|
||||
break;
|
||||
case SECONDARY_NBNS_SERVER:
|
||||
memcpy(ipcp->secondary_nbns, option->data, 4);
|
||||
break;
|
||||
default:
|
||||
g_printerr("Unable to process unknown option %d\n", option->type);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
struct pppcp_action ipcp_action = {
|
||||
.this_layer_up = ipcp_up,
|
||||
.this_layer_down = ipcp_down,
|
||||
.this_layer_started = ipcp_started,
|
||||
.this_layer_finished = ipcp_finished,
|
||||
.option_scan = ipcp_option_scan,
|
||||
.option_process = ipcp_option_process,
|
||||
};
|
||||
|
||||
static const char *ipcp_option_strings[256] = {
|
||||
[IP_ADDRESSES] = "IP-Addresses (deprecated)",
|
||||
[IP_COMPRESSION_PROTO] = "IP-Compression-Protocol",
|
||||
[IP_ADDRESS] = "IP-Address",
|
||||
[MOBILE_IPV4] = "Mobile-IPv4",
|
||||
[PRIMARY_DNS_SERVER] = "Primary DNS Server Address",
|
||||
[PRIMARY_NBNS_SERVER] = "Primary NBNS Server Address",
|
||||
[SECONDARY_DNS_SERVER] = "Secondary DNS Server Address",
|
||||
[SECONDARY_NBNS_SERVER] = "Secondary NBNS Server Address",
|
||||
};
|
||||
|
||||
struct ppp_packet_handler ipcp_packet_handler = {
|
||||
.proto = IPCP_PROTO,
|
||||
.handler = pppcp_process_packet,
|
||||
};
|
||||
|
||||
static struct pppcp_data *ipcp_new(GAtPPP *ppp)
|
||||
{
|
||||
struct ipcp_data *data;
|
||||
struct pppcp_data *pppcp;
|
||||
struct ppp_option *ipcp_option;
|
||||
|
||||
data = g_try_malloc0(sizeof(*data));
|
||||
if (!data)
|
||||
return NULL;
|
||||
|
||||
pppcp = pppcp_new(ppp, IPCP_PROTO);
|
||||
if (!pppcp) {
|
||||
g_printerr("Failed to allocate PPPCP struct\n");
|
||||
g_free(data);
|
||||
return NULL;
|
||||
}
|
||||
pppcp_set_valid_codes(pppcp, IPCP_SUPPORTED_CODES);
|
||||
pppcp->option_strings = ipcp_option_strings;
|
||||
pppcp->prefix = "ipcp";
|
||||
pppcp->priv = data;
|
||||
|
||||
/* set the actions */
|
||||
pppcp->action = &ipcp_action;
|
||||
|
||||
/* add the default config options */
|
||||
ipcp_option = g_try_malloc0(6);
|
||||
if (!ipcp_option) {
|
||||
pppcp_free(pppcp);
|
||||
g_free(data);
|
||||
return NULL;
|
||||
}
|
||||
ipcp_option->type = IP_ADDRESS;
|
||||
ipcp_option->length= 6;
|
||||
pppcp_add_config_option(pppcp, ipcp_option);
|
||||
|
||||
/* register packet handler for IPCP protocol */
|
||||
ipcp_packet_handler.priv = pppcp;
|
||||
ppp_register_packet_handler(&ipcp_packet_handler);
|
||||
return pppcp;
|
||||
}
|
||||
|
||||
static void ipcp_free(struct pppcp_data *data)
|
||||
{
|
||||
struct ipcp_data *ipcp = data->priv;
|
||||
|
||||
/* TBD unregister IPCP packet handler */
|
||||
|
||||
/* free ipcp */
|
||||
g_free(ipcp);
|
||||
|
||||
/* free pppcp */
|
||||
pppcp_free(data);
|
||||
}
|
||||
|
||||
struct ppp_net_data *ppp_net_new(GAtPPP *ppp)
|
||||
{
|
||||
struct ppp_net_data *data;
|
||||
|
@ -368,7 +157,6 @@ struct ppp_net_data *ppp_net_new(GAtPPP *ppp)
|
|||
return NULL;
|
||||
|
||||
data->ppp = ppp;
|
||||
data->ipcp = ipcp_new(ppp);
|
||||
|
||||
/* register packet handler for IP protocol */
|
||||
ip_packet_handler.priv = data;
|
||||
|
@ -383,9 +171,6 @@ void ppp_net_free(struct ppp_net_data *data)
|
|||
/* cleanup tun interface */
|
||||
ppp_net_close(data);
|
||||
|
||||
/* free ipcp data */
|
||||
ipcp_free(data->ipcp);
|
||||
|
||||
/* free self */
|
||||
g_free(data);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue