diff options
Diffstat (limited to 'mdk-stage1/rp-pppoe/src/plugin.c')
| -rw-r--r-- | mdk-stage1/rp-pppoe/src/plugin.c | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/mdk-stage1/rp-pppoe/src/plugin.c b/mdk-stage1/rp-pppoe/src/plugin.c deleted file mode 100644 index d1097e291..000000000 --- a/mdk-stage1/rp-pppoe/src/plugin.c +++ /dev/null @@ -1,397 +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. -***********************************************************************/ - -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/if_pppox.h> - -/* From sys-linux.c in pppd -- MUST FIX THIS! */ -extern int new_style_driver; - -static char *service = NULL; -static char *acName = NULL; -static char *existingSession = NULL; - -static option_t Options[] = { - { "rp_pppoe_service", o_string, &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)" }, - { NULL } -}; -int (*OldDevnameHook)(const char *name) = 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 (service) { - SET_STRING(conn->serviceName, acName); - } - SET_STRING(conn->ifName, devnam); - conn->discoverySocket = -1; - conn->sessionSocket = -1; - conn->useHostUniq = 1; - 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; - - 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 { - discovery(conn); - if (conn->discoveryState != STATE_SESSION) { - fatal("Unable to complete PPPoE Discovery"); - } - } - - /* Make the session socket */ - conn->sessionSocket = socket(AF_PPPOX, SOCK_STREAM, PX_PROTO_OE); - if (conn->sessionSocket < 0) { - fatal("Failed to create PPPoE socket: %m"); - } - 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); - if (connect(conn->sessionSocket, (struct sockaddr *) &sp, - sizeof(struct sockaddr_pppox)) < 0) { - fatal("Failed to connect PPPoE socket: %d %m", errno); - return -1; - } - return conn->sessionSocket; -} - -static void -PPPOESendConfig(int unit, - 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); - } - sock = socket(AF_INET, SOCK_DGRAM, 0); - if (sock < 0) { - fatal("Couldn't create IP socket: %m"); - } - strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)); - ifr.ifr_mtu = mtu; - if (ioctl(sock, SIOCSIFMTU, &ifr) < 0) { - fatal("ioctl(SIOCSIFMTU): %m"); - } - (void) close (sock); -} - - -static void -PPPOERecvConfig(int unit, - int mru, - u_int32_t asyncmap, - int pcomp, - int accomp) -{ - if (mru > MAX_PPPOE_MTU) { - error("Couldn't increase MRU to %d", mru); - } -} - -static void -PPPOESetXaccm(int unit, - ext_accm accm) -{ - /* Do nothing */ -} - -/********************************************************************** - * %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); -} - -static int -PPPOESetSpeed(const char *speed) -{ - return 0; -} - -static void -PPPOEDeviceCheckHook(void) -{ - if (!options_for_dev(_PATH_ETHOPT, devnam)) { - exit(EXIT_OPTION_ERROR); - } -} - -/********************************************************************** - * %FUNCTION: PPPoEDevnameHook - * %ARGUMENTS: - * name -- name of device - * %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) and sets devstat.st_mode - * so S_ISCHR(devstat.st_mode) != 1 for internal pppd consumption. - ***********************************************************************/ -static int -PPPoEDevnameHook(const char *name) -{ - int r = 1; - int fd; - struct ifreq ifr; - - /* Open a socket */ - if ((fd = socket(PF_PACKET, SOCK_RAW, 0)) < 0) { - r = 0; - } - - /* Try getting interface index */ - if (r) { - strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); - 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", name); - r=0; - } - } - } - } - - /* Close socket */ - close(fd); - if (r) { - strncpy(devnam, name, sizeof(devnam)); - if (device_check_hook != PPPOEDeviceCheckHook) { - devstat.st_mode = S_IFSOCK; - device_init_hook = PPPOEInitDevice; - setspeed_hook = PPPOESetSpeed; - device_check_hook = PPPOEDeviceCheckHook; - connect_device_hook = PPPOEConnectDevice; - disconnect_device_hook = PPPOEDisconnectDevice; - send_config_hook = PPPOESendConfig; - recv_config_hook = PPPOERecvConfig; - set_xaccm_hook = PPPOESetXaccm; - 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; - - 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; - - PPPOEInitDevice(); - } - return 1; - } - - if (OldDevnameHook) r = OldDevnameHook(name); - return r; -} - -/********************************************************************** - * %FUNCTION: plugin_init - * %ARGUMENTS: - * None - * %RETURNS: - * Nothing - * %DESCRIPTION: - * Initializes hooks for pppd plugin - ***********************************************************************/ -void -plugin_init(void) -{ - if (!new_style_driver) { - fatal("Linux kernel does not support PPPoE -- are you running 2.4.x?"); - } - OldDevnameHook = setdevname_hook; - setdevname_hook = PPPoEDevnameHook; - add_options(Options); - - info("Roaring Penguin PPPoE Plugin Initialized"); -} - -/********************************************************************** -*%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) -{ - char buf[1024]; - printErr(str); - sprintf(buf, "RP-PPPoE: %.256s", str); - sendPADT(conn, buf); - 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); -} |