+++ /dev/null
-/* pppoe.c - pppd plugin to implement PPPoE protocol.
- *
- * Copyright 2000 Michal Ostrowski <mostrows@styx.uwaterloo.ca>,
- * Jamal Hadi Salim <hadi@cyberus.ca>
- * Borrows heavily from the PPPoATM plugin by Mitchell Blank Jr.,
- * which is based in part on work from Jens Axboe and Paul Mackerras.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <string.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include "pppoe.h"
-#if _linux_
-extern int new_style_driver; /* From sys-linux.c */
-#include <linux/ppp_defs.h>
-#include <linux/if_pppox.h>
-#include <linux/if_ppp.h>
-#else
-#error this module meant for use with linux only at this time
-#endif
-
-
-#include "pppd.h"
-#include "fsm.h"
-#include "lcp.h"
-#include "ipcp.h"
-#include "ccp.h"
-#include "pathnames.h"
-#define _PATH_ETHOPT _ROOT_PATH "/etc/ppp/options."
-
-#define PPPOE_MTU 1492
-extern int kill_link;
-static char *bad_options[] = {
- "noaccomp",
- "-ac",
- "default-asyncmap",
- "-am",
- "asyncmap",
- "-as",
- "escape",
- "multilink",
- "receive-all",
- "crtscts",
- "-crtscts",
- "nocrtscts",
- "cdtrcts",
- "nocdtrcts",
- "xonxoff",
- "modem",
- "local",
- "sync",
- "deflate",
- "nodeflate",
- "vj",
- "novj",
- "nobsdcomp",
- "bsdcomp",
- "-bsdcomp",
- NULL
-};
-
-bool pppoe_server=0;
-char *pppoe_srv_name=NULL;
-char *pppoe_ac_name=NULL;
-char *hostuniq = NULL;
-int retries = 0;
-
-int setdevname_pppoe(const char *cp);
-
-static option_t pppoe_options[] = {
- { "device name", o_wild, (void *) &setdevname_pppoe,
- "Serial port device name",
- OPT_DEVNAM | OPT_PRIVFIX | OPT_NOARG | OPT_A2STRVAL | OPT_STATIC,
- devnam},
- { "pppoe_srv_name", o_string, &pppoe_srv_name,
- "PPPoE service name"},
- { "pppoe_ac_name", o_string, &pppoe_ac_name,
- "PPPoE access concentrator name"},
- { "pppoe_hostuniq", o_string, &hostuniq,
- "PPPoE client uniq hostid "},
- { "pppoe_retransmit", o_int, &retries,
- "PPPoE client number of retransmit tries"},
- { "pppoe_server", o_bool, &pppoe_server,
- "PPPoE listen for incoming requests",1},
- { NULL }
-};
-
-
-
-struct session *ses = NULL;
-static int connect_pppoe_ses(void)
-{
- int i,err=-1;
- if( pppoe_server == 1 ){
- srv_init_ses(ses,devnam);
- }else{
- client_init_ses(ses,devnam);
- }
-#if 0
- ses->np=1; /* jamal debug the discovery portion */
-#endif
- strlcpy(ppp_devnam, devnam, sizeof(ppp_devnam));
-
- err= session_connect ( ses );
-
- if(err < 0){
- poe_fatal(ses,"Failed to negotiate PPPoE connection: %d %m",errno,errno);
- }
-
-
- poe_info(ses,"Connecting PPPoE socket: %E %04x %s %p",
- ses->sp.sa_addr.pppoe.remote,
- ses->sp.sa_addr.pppoe.sid,
- ses->sp.sa_addr.pppoe.dev,ses);
-
- err = connect(ses->fd, (struct sockaddr*)&ses->sp,
- sizeof(struct sockaddr_pppox));
-
-
- if( err < 0 ){
- poe_fatal(ses,"Failed to connect PPPoE socket: %d %m",errno,errno);
- return err;
- }
-#if 0
- if (ses->np)
- fatal("discovery complete\n");
-#endif
- /* Once the logging is fixed, print a message here indicating
- connection parameters */
-
- return ses->fd;
-}
-
-static void disconnect_pppoe_ses(void)
-{
- int ret;
- warn("Doing disconnect");
- session_disconnect(ses);
- ses->sp.sa_addr.pppoe.sid = 0;
- ret = connect(ses->fd, (struct sockaddr*)&ses->sp,
- sizeof(struct sockaddr_pppox));
-
-}
-
-
-static int setspeed_pppoe(const char *cp)
-{
- return 0;
-}
-
-static void init_device_pppoe(void)
-{
- struct filter *filt;
- unsigned int size=0;
- ses=(void *)malloc(sizeof(struct session));
- if(!ses){
- fatal("No memory for new PPPoE session");
- }
- memset(ses,0,sizeof(struct session));
-
- if ((ses->filt=malloc(sizeof(struct filter))) == NULL) {
- poe_error (ses,"failed to malloc for Filter ");
- poe_die (-1);
- }
-
- filt=ses->filt; /* makes the code more readable */
- memset(filt,0,sizeof(struct filter));
-
- if (pppoe_ac_name !=NULL) {
- if (strlen (pppoe_ac_name) > 255) {
- poe_error (ses," AC name too long (maximum allowed 256 chars)");
- poe_die(-1);
- }
- ses->filt->ntag = make_filter_tag(PTT_AC_NAME,
- strlen(pppoe_ac_name),
- pppoe_ac_name);
-
- if ( ses->filt->ntag== NULL) {
- poe_error (ses,"failed to malloc for AC name");
- poe_die(-1);
- }
-
- }
-
-
- if (pppoe_srv_name !=NULL) {
- if (strlen (pppoe_srv_name) > 255) {
- poe_error (ses," Service name too long
- (maximum allowed 256 chars)");
- poe_die(-1);
- }
- ses->filt->stag = make_filter_tag(PTT_SRV_NAME,
- strlen(pppoe_srv_name),
- pppoe_srv_name);
- if ( ses->filt->stag == NULL) {
- poe_error (ses,"failed to malloc for service name");
- poe_die(-1);
- }
- }
-
- if (hostuniq) {
- ses->filt->htag = make_filter_tag(PTT_HOST_UNIQ,
- strlen(hostuniq),
- hostuniq);
- if ( ses->filt->htag == NULL) {
- poe_error (ses,"failed to malloc for Uniq Host Id ");
- poe_die(-1);
- }
- }
-
- if (retries) {
- ses->retries=retries;
- }
-
- memcpy( ses->name, devnam, IFNAMSIZ);
- ses->opt_debug=1;
-}
-
-static void pppoe_extra_options()
-{
- int ret;
- char buf[256];
- snprintf(buf, 256, _PATH_ETHOPT "%s",devnam);
- if(!options_from_file(buf, 0, 0, 1))
- exit(EXIT_OPTION_ERROR);
-
-}
-
-
-
-static void send_config_pppoe(int mtu,
- u_int32_t asyncmap,
- int pcomp,
- int accomp)
-{
- int sock;
- struct ifreq ifr;
-
- if (mtu > PPPOE_MTU) {
- warn("Not increasing MTU to %d, max is %d", mtu, PPPOE_MTU);
- return;
- }
-}
-
-
-static void recv_config_pppoe(int mru,
- u_int32_t asyncmap,
- int pcomp,
- int accomp)
-{
- if (mru > PPPOE_MTU)
- error("Not increasing MRU to %d, max is %d", mru, PPPOE_MTU);
-}
-
-static void set_xaccm_pppoe(int unit, ext_accm accm)
-{
- /* NOTHING */
-}
-
-
-
-struct channel pppoe_channel;
-/* Check is cp is a valid ethernet device
- * return either 1 if "cp" is a reasonable thing to name a device
- * or die.
- * Note that we don't actually open the device at this point
- * We do need to fill in:
- * devnam: a string representation of the device
- */
-
-int (*old_setdevname_hook)(const char* cp) = NULL;
-int setdevname_pppoe(const char *cp)
-{
- int ret;
- char dev[IFNAMSIZ+1];
- int addr[ETH_ALEN];
- int sid;
-
- char **a;
- ret =sscanf(cp, FMTSTRING(IFNAMSIZ),addr, addr+1, addr+2,
- addr+3, addr+4, addr+5,&sid,dev);
- if( ret != 8 ){
-
- ret = get_sockaddr_ll(cp,NULL);
- if (ret < 0)
- fatal("PPPoE: Cannot create PF_PACKET socket for PPPoE discovery\n");
- if (ret == 1)
- strncpy(devnam, cp, sizeof(devnam));
- }else{
- /* long form parsed */
- ret = get_sockaddr_ll(dev,NULL);
- if (ret < 0)
- fatal("PPPoE: Cannot create PF_PACKET socket for PPPoE discovery\n");
-
- strncpy(devnam, cp, sizeof(devnam));
- ret = 1;
- }
-
-
- if( ret == 1 && the_channel != &pppoe_channel ){
-
- the_channel = &pppoe_channel;
-
- lcp_allowoptions[0].neg_accompression = 0;
- lcp_wantoptions[0].neg_accompression = 0;
-
- lcp_allowoptions[0].neg_asyncmap = 0;
- lcp_wantoptions[0].neg_asyncmap = 0;
-
- lcp_allowoptions[0].neg_pcompression = 0;
- lcp_wantoptions[0].neg_pcompression = 0;
-
- ccp_allowoptions[0].deflate = 0 ;
- ccp_wantoptions[0].deflate = 0 ;
-
- ipcp_allowoptions[0].neg_vj=0;
- ipcp_wantoptions[0].neg_vj=0;
-
- ccp_allowoptions[0].bsd_compress = 0;
- ccp_wantoptions[0].bsd_compress = 0;
-
- init_device_pppoe();
- }
- return ret;
-}
-
-
-
-void plugin_init(void)
-{
-/*
- fatal("PPPoE plugin loading...");
-*/
-
-#if _linux_
- if (!ppp_available() && !new_style_driver)
- fatal("Kernel doesn't support ppp_generic needed for PPPoE");
-#else
- fatal("No PPPoE support on this OS");
-#endif
- add_options(pppoe_options);
-
-
- info("PPPoE Plugin Initialized");
-}
-
-struct channel pppoe_channel = {
- options: pppoe_options,
- process_extra_options: &pppoe_extra_options,
- check_options: NULL,
- connect: &connect_pppoe_ses,
- disconnect: &disconnect_pppoe_ses,
- establish_ppp: &generic_establish_ppp,
- disestablish_ppp: &generic_disestablish_ppp,
- send_config: &send_config_pppoe,
- recv_config: &recv_config_pppoe,
- close: NULL,
- cleanup: NULL
-};
-
projects / ppp.git / blobdiff