66 files changed, 0 insertions, 15542 deletions
diff --git a/src/plugin.c b/src/plugin.c deleted file mode 100755 index 83978f0..0000000 --- a/src/plugin.c +++ b/dev/null @@ -1,469 +0,0 @@ -/*********************************************************************** -* -* plugin.c -* -* pppd plugin for kernel-mode PPPoE on Linux -* -* Copyright (C) 2001 by Roaring Penguin Software Inc., Michal Ostrowski -* and Jamal Hadi Salim. -* -* Much code and many ideas derived from pppoe plugin by Michal -* Ostrowski and Jamal Hadi Salim, which carries this copyright: -* -* 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. -* -* LIC: GPL -* -***********************************************************************/ - -static char const RCSID[] = -"$Id$"; - -#define _GNU_SOURCE 1 -#include "pppoe.h" - -#include "pppd/pppd.h" -#include "pppd/fsm.h" -#include "pppd/lcp.h" -#include "pppd/ipcp.h" -#include "pppd/ccp.h" -/* #include "pppd/pathnames.h" */ - -#include <linux/types.h> -#include <syslog.h> -#include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <string.h> -#include <stdlib.h> -#include <errno.h> -#include <unistd.h> -#include <fcntl.h> -#include <signal.h> -#include <net/ethernet.h> -#include <net/if_arp.h> -#include <linux/ppp_defs.h> -#include <linux/if_pppox.h> - -#ifndef _ROOT_PATH -#define _ROOT_PATH "" -#endif - -#define _PATH_ETHOPT _ROOT_PATH "/etc/ppp/options." - -char pppd_version[] = VERSION; - -/* From sys-linux.c in pppd -- MUST FIX THIS! */ -extern int new_style_driver; - -char *pppd_pppoe_service = NULL; -static char *acName = NULL; -static char *existingSession = NULL; -static int printACNames = 0; - -static int PPPoEDevnameHook(char *cmd, char **argv, int doit); -static option_t Options[] = { - { "device name", o_wild, (void *) &PPPoEDevnameHook, - "PPPoE device name", - OPT_DEVNAM | OPT_PRIVFIX | OPT_NOARG | OPT_A2STRVAL | OPT_STATIC, - devnam}, - { "rp_pppoe_service", o_string, &pppd_pppoe_service, - "Desired PPPoE service name" }, - { "rp_pppoe_ac", o_string, &acName, - "Desired PPPoE access concentrator name" }, - { "rp_pppoe_sess", o_string, &existingSession, - "Attach to existing session (sessid:macaddr)" }, - { "rp_pppoe_verbose", o_int, &printACNames, - "Be verbose about discovered access concentrators"}, - { NULL } -}; -int (*OldDevnameHook)(char *cmd, char **argv, int doit) = NULL; -static PPPoEConnection *conn = NULL; - -/********************************************************************** - * %FUNCTION: PPPOEInitDevice - * %ARGUMENTS: - * None - * %RETURNS: - * - * %DESCRIPTION: - * Initializes PPPoE device. - ***********************************************************************/ -static int -PPPOEInitDevice(void) -{ - conn = malloc(sizeof(PPPoEConnection)); - if (!conn) { - fatal("Could not allocate memory for PPPoE session"); - } - memset(conn, 0, sizeof(PPPoEConnection)); - if (acName) { - SET_STRING(conn->acName, acName); - } - if (pppd_pppoe_service) { - SET_STRING(conn->serviceName, pppd_pppoe_service); - } - SET_STRING(conn->ifName, devnam); - conn->discoverySocket = -1; - conn->sessionSocket = -1; - conn->useHostUniq = 1; - conn->printACNames = printACNames; - conn->discoveryTimeout = PADI_TIMEOUT; - return 1; -} - -/********************************************************************** - * %FUNCTION: PPPOEConnectDevice - * %ARGUMENTS: - * None - * %RETURNS: - * Non-negative if all goes well; -1 otherwise - * %DESCRIPTION: - * Connects PPPoE device. - ***********************************************************************/ -static int -PPPOEConnectDevice(void) -{ - struct sockaddr_pppox sp; - - /* Open session socket before discovery phase, to avoid losing session */ - /* packets sent by peer just after PADS packet (noted on some Cisco */ - /* server equipment). */ - /* Opening this socket just before waitForPADS in the discovery() */ - /* function would be more appropriate, but it would mess-up the code */ - conn->sessionSocket = socket(AF_PPPOX, SOCK_STREAM, PX_PROTO_OE); - if (conn->sessionSocket < 0) { - error("Failed to create PPPoE socket: %m"); - return -1; - } - - strlcpy(ppp_devnam, devnam, sizeof(ppp_devnam)); - if (existingSession) { - unsigned int mac[ETH_ALEN]; - int i, ses; - if (sscanf(existingSession, "%d:%x:%x:%x:%x:%x:%x", - &ses, &mac[0], &mac[1], &mac[2], - &mac[3], &mac[4], &mac[5]) != 7) { - fatal("Illegal value for rp_pppoe_sess option"); - } - conn->session = htons(ses); - for (i=0; i<ETH_ALEN; i++) { - conn->peerEth[i] = (unsigned char) mac[i]; - } - } else { - conn->discoverySocket = - openInterface(conn->ifName, Eth_PPPOE_Discovery, conn->myEth); - discovery(conn); - if (conn->discoveryState != STATE_SESSION) { - error("Unable to complete PPPoE Discovery"); - return -1; - } - } - - /* Set PPPoE session-number for further consumption */ - ppp_session_number = ntohs(conn->session); - - sp.sa_family = AF_PPPOX; - sp.sa_protocol = PX_PROTO_OE; - sp.sa_addr.pppoe.sid = conn->session; - memcpy(sp.sa_addr.pppoe.dev, conn->ifName, IFNAMSIZ); - memcpy(sp.sa_addr.pppoe.remote, conn->peerEth, ETH_ALEN); - - /* Set remote_number for ServPoET */ - sprintf(remote_number, "%02X:%02X:%02X:%02X:%02X:%02X", - (unsigned) conn->peerEth[0], - (unsigned) conn->peerEth[1], - (unsigned) conn->peerEth[2], - (unsigned) conn->peerEth[3], - (unsigned) conn->peerEth[4], - (unsigned) conn->peerEth[5]); - - warn("Connected to %02X:%02X:%02X:%02X:%02X:%02X via interface %s", - (unsigned) conn->peerEth[0], - (unsigned) conn->peerEth[1], - (unsigned) conn->peerEth[2], - (unsigned) conn->peerEth[3], - (unsigned) conn->peerEth[4], - (unsigned) conn->peerEth[5], - conn->ifName); - - script_setenv("MACREMOTE", remote_number, 0); - - if (connect(conn->sessionSocket, (struct sockaddr *) &sp, - sizeof(struct sockaddr_pppox)) < 0) { - error("Failed to connect PPPoE socket: %d %m", errno); - return -1; - } - - return conn->sessionSocket; -} - -static void -PPPOESendConfig(int mtu, - u_int32_t asyncmap, - int pcomp, - int accomp) -{ - int sock; - struct ifreq ifr; - - if (mtu > MAX_PPPOE_MTU) { - warn("Couldn't increase MTU to %d", mtu); - mtu = MAX_PPPOE_MTU; - } - sock = socket(AF_INET, SOCK_DGRAM, 0); - if (sock < 0) { - warn("Couldn't create IP socket: %m"); - return; - } - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - ifr.ifr_mtu = mtu; - if (ioctl(sock, SIOCSIFMTU, &ifr) < 0) { - warn("ioctl(SIOCSIFMTU): %m"); - return; - } - (void) close (sock); -} - - -static void -PPPOERecvConfig(int mru, - u_int32_t asyncmap, - int pcomp, - int accomp) -{ - if (mru > MAX_PPPOE_MTU) { - warn("Couldn't increase MRU to %d", mru); - } -} - -/********************************************************************** - * %FUNCTION: PPPOEDisconnectDevice - * %ARGUMENTS: - * None - * %RETURNS: - * Nothing - * %DESCRIPTION: - * Disconnects PPPoE device - ***********************************************************************/ -static void -PPPOEDisconnectDevice(void) -{ - struct sockaddr_pppox sp; - - sp.sa_family = AF_PPPOX; - sp.sa_protocol = PX_PROTO_OE; - sp.sa_addr.pppoe.sid = 0; - memcpy(sp.sa_addr.pppoe.dev, conn->ifName, IFNAMSIZ); - memcpy(sp.sa_addr.pppoe.remote, conn->peerEth, ETH_ALEN); - if (connect(conn->sessionSocket, (struct sockaddr *) &sp, - sizeof(struct sockaddr_pppox)) < 0) { - fatal("Failed to disconnect PPPoE socket: %d %m", errno); - return; - } - close(conn->sessionSocket); - close(conn->discoverySocket); - -} - -static void -PPPOEDeviceOptions(void) -{ - char buf[256]; - snprintf(buf, 256, _PATH_ETHOPT "%s",devnam); - if(!options_from_file(buf, 0, 0, 1)) - exit(EXIT_OPTION_ERROR); - -} - -struct channel pppoe_channel; - -/********************************************************************** - * %FUNCTION: PPPoEDevnameHook - * %ARGUMENTS: - * cmd -- the command (actually, the device name - * argv -- argument vector - * doit -- if non-zero, set device name. Otherwise, just check if possible - * %RETURNS: - * 1 if we will handle this device; 0 otherwise. - * %DESCRIPTION: - * Checks if name is a valid interface name; if so, returns 1. Also - * sets up devnam (string representation of device). - ***********************************************************************/ -static int -PPPoEDevnameHook(char *cmd, char **argv, int doit) -{ - int r = 1; - int fd; - struct ifreq ifr; - - /* Only do it if name is "ethXXX" or "brXXX" or what was specified - by rp_pppoe_dev option (ugh). */ - /* Can also specify nic-XXXX in which case the nic- is stripped off. */ - if (!strncmp(cmd, "nic-", 4)) { - cmd += 4; - } else { - if (strncmp(cmd, "eth", 3) && - strncmp(cmd, "br", 2)) { - if (OldDevnameHook) return OldDevnameHook(cmd, argv, doit); - return 0; - } - } - - /* Open a socket */ - if ((fd = socket(PF_PACKET, SOCK_RAW, 0)) < 0) { - r = 0; - } - - /* Try getting interface index */ - if (r) { - strncpy(ifr.ifr_name, cmd, IFNAMSIZ); - if (ioctl(fd, SIOCGIFINDEX, &ifr) < 0) { - r = 0; - } else { - if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) { - r = 0; - } else { - if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) { - error("Interface %s not Ethernet", cmd); - r=0; - } - } - } - } - - /* Close socket */ - close(fd); - if (r) { - strncpy(devnam, cmd, sizeof(devnam)); - if (the_channel != &pppoe_channel) { - - the_channel = &pppoe_channel; - modem = 0; - - 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; - - ipcp_allowoptions[0].neg_vj=0; - ipcp_wantoptions[0].neg_vj=0; - - ccp_allowoptions[0].deflate = 0 ; - ccp_wantoptions[0].deflate = 0 ; - - ccp_allowoptions[0].bsd_compress = 0; - ccp_wantoptions[0].bsd_compress = 0; - - - PPPOEInitDevice(); - } - return 1; - } - - if (OldDevnameHook) r = OldDevnameHook(cmd, argv, doit); - return r; -} - -/********************************************************************** - * %FUNCTION: plugin_init - * %ARGUMENTS: - * None - * %RETURNS: - * Nothing - * %DESCRIPTION: - * Initializes hooks for pppd plugin - ***********************************************************************/ -void -plugin_init(void) -{ - if (!ppp_available() && !new_style_driver) { - fatal("Linux kernel does not support PPPoE -- are you running 2.4.x?"); - } - - add_options(Options); - - info("RP-PPPoE plugin version %s compiled against pppd %s", - RP_VERSION, VERSION); -} - -/********************************************************************** -*%FUNCTION: fatalSys -*%ARGUMENTS: -* str -- error message -*%RETURNS: -* Nothing -*%DESCRIPTION: -* Prints a message plus the errno value to stderr and syslog and exits. -***********************************************************************/ -void -fatalSys(char const *str) -{ - char buf[1024]; - int i = errno; - sprintf(buf, "%.256s: %.256s", str, strerror(i)); - printErr(buf); - sprintf(buf, "RP-PPPoE: %.256s: %.256s", str, strerror(i)); - sendPADT(conn, buf); - exit(1); -} - -/********************************************************************** -*%FUNCTION: rp_fatal -*%ARGUMENTS: -* str -- error message -*%RETURNS: -* Nothing -*%DESCRIPTION: -* Prints a message to stderr and syslog and exits. -***********************************************************************/ -void -rp_fatal(char const *str) -{ - printErr(str); - sendPADTf(conn, "RP-PPPoE: %.256s", str); - exit(1); -} - -/********************************************************************** -*%FUNCTION: sysErr -*%ARGUMENTS: -* str -- error message -*%RETURNS: -* Nothing -*%DESCRIPTION: -* Prints a message plus the errno value to syslog. -***********************************************************************/ -void -sysErr(char const *str) -{ - rp_fatal(str); -} - - -struct channel pppoe_channel = { - .options = Options, - .process_extra_options = &PPPOEDeviceOptions, - .check_options = NULL, - .connect = &PPPOEConnectDevice, - .disconnect = &PPPOEDisconnectDevice, - .establish_ppp = &generic_establish_ppp, - .disestablish_ppp = &generic_disestablish_ppp, - .send_config = &PPPOESendConfig, - .recv_config = &PPPOERecvConfig, - .close = NULL, - .cleanup = NULL -}; |