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-rw-r--r--pppd_plugin/src/pptp.c344
1 files changed, 0 insertions, 344 deletions
diff --git a/pppd_plugin/src/pptp.c b/pppd_plugin/src/pptp.c
deleted file mode 100644
index 1522d19..0000000
--- a/pppd_plugin/src/pptp.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/***************************************************************************
- * Copyright (C) 2006 by Kozlov D. *
- * xeb@mail.ru *
- * *
- * 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. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/un.h>
-#include <netdb.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#include <sys/ioctl.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 "pptp_callmgr.h"
-#include <net/if.h>
-#include <net/ethernet.h>
-#include "if_pppox.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-
-
-
-extern char** environ;
-
-char pppd_version[] = PPPD_VERSION;
-extern int new_style_driver;
-
-
-char *pptp_server = NULL;
-char *pptp_client = NULL;
-char *pptp_phone = NULL;
-int pptp_sock=-1;
-int pptp_timeout=100000;
-struct in_addr localbind = { INADDR_NONE };
-
-static int callmgr_sock;
-static int pptp_fd;
-int call_ID;
-
-//static struct in_addr get_ip_address(char *name);
-static int open_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window);
-static void launch_callmgr(int call_is,struct in_addr inetaddr, char *phonenr,int window);
-static int get_call_id(int sock, pid_t gre, pid_t pppd, u_int16_t *peer_call_id);
-
-//static int pptp_devname_hook(char *cmd, char **argv, int doit);
-static option_t Options[] =
-{
- { "pptp_server", o_string, &pptp_server,
- "PPTP Server" },
- { "pptp_client", o_string, &pptp_client,
- "PPTP Client" },
- { "pptp_sock",o_int, &pptp_sock,
- "PPTP socket" },
- { "pptp_phone", o_string, &pptp_phone,
- "PPTP Phone number" },
- { NULL }
-};
-
-static int pptp_connect(void);
-//static void pptp_send_config(int mtu,u_int32_t asyncmap,int pcomp,int accomp);
-//static void pptp_recv_config(int mru,u_int32_t asyncmap,int pcomp,int accomp);
-static void pptp_disconnect(void);
-
-struct channel pptp_channel = {
- options: Options,
- //process_extra_options: &PPPOEDeviceOptions,
- check_options: NULL,
- connect: &pptp_connect,
- disconnect: &pptp_disconnect,
- establish_ppp: &generic_establish_ppp,
- disestablish_ppp: &generic_disestablish_ppp,
- //send_config: &pptp_send_config,
- //recv_config: &pptp_recv_config,
- close: NULL,
- cleanup: NULL
-};
-
-static int pptp_start_server(void)
-{
- pptp_fd=pptp_sock;
- sprintf(ppp_devnam,"pptp (%s)",pptp_client);
-
- return pptp_fd;
-}
-static int pptp_start_client(void)
-{
- socklen_t len;
- struct sockaddr_pppox src_addr,dst_addr;
- struct hostent *hostinfo;
-
- hostinfo=gethostbyname(pptp_server);
- if (!hostinfo)
- {
- error("PPTP: Unknown host %s\n", pptp_server);
- return -1;
- }
- dst_addr.sa_addr.pptp.sin_addr=*(struct in_addr*)hostinfo->h_addr;
- {
- int sock;
- struct sockaddr_in addr;
- len=sizeof(addr);
- addr.sin_addr=dst_addr.sa_addr.pptp.sin_addr;
- addr.sin_family=AF_INET;
- addr.sin_port=htons(1700);
- sock=socket(AF_INET,SOCK_DGRAM,0);
- if (connect(sock,(struct sockaddr*)&addr,sizeof(addr)))
- {
- close(sock);
- error("PPTP: connect failed (%s)\n",strerror(errno));
- return -1;
- }
- getsockname(sock,(struct sockaddr*)&addr,&len);
- src_addr.sa_addr.pptp.sin_addr=addr.sin_addr;
- close(sock);
- }
- //info("PPTP: connect server=%s\n",inet_ntoa(conn.sin_addr));
- //conn.loc_addr.s_addr=INADDR_NONE;
- //conn.timeout=1;
- //conn.window=pptp_window;
-
- src_addr.sa_family=AF_PPPOX;
- src_addr.sa_protocol=PX_PROTO_PPTP;
- src_addr.sa_addr.pptp.call_id=0;
-
- dst_addr.sa_family=AF_PPPOX;
- dst_addr.sa_protocol=PX_PROTO_PPTP;
- dst_addr.sa_addr.pptp.call_id=0;
-
- pptp_fd=socket(AF_PPPOX,SOCK_STREAM,PX_PROTO_PPTP);
- if (pptp_fd<0)
- {
- error("PPTP: failed to create PPTP socket (%s)\n",strerror(errno));
- return -1;
- }
- if (bind(pptp_fd,(struct sockaddr*)&src_addr,sizeof(src_addr)))
- {
- close(pptp_fd);
- error("PPTP: failed to bind PPTP socket (%s)\n",strerror(errno));
- return -1;
- }
- len=sizeof(src_addr);
- getsockname(pptp_fd,(struct sockaddr*)&src_addr,&len);
- call_ID=src_addr.sa_addr.pptp.call_id;
-
- do {
- /*
- * Open connection to call manager (Launch call manager if necessary.)
- */
- callmgr_sock = open_callmgr(src_addr.sa_addr.pptp.call_id,dst_addr.sa_addr.pptp.sin_addr, pptp_phone,50);
- if (callmgr_sock<0)
- {
- close(pptp_fd);
- return -1;
- }
- /* Exchange PIDs, get call ID */
- } while (get_call_id(callmgr_sock, getpid(), getpid(), &dst_addr.sa_addr.pptp.call_id) < 0);
-
- if (connect(pptp_fd,(struct sockaddr*)&dst_addr,sizeof(dst_addr)))
- {
- close(callmgr_sock);
- close(pptp_fd);
- error("PPTP: failed to connect PPTP socket (%s)\n",strerror(errno));
- return -1;
- }
-
- sprintf(ppp_devnam,"pptp (%s)",pptp_server);
-
- return pptp_fd;
-}
-static int pptp_connect(void)
-{
- if ((!pptp_server && !pptp_client) || (pptp_server && pptp_client))
- {
- fatal("PPTP: unknown mode (you must specify pptp_server or pptp_client option)");
- return -1;
- }
-
- if (pptp_server) return pptp_start_client();
- return pptp_start_server();
-}
-
-static void pptp_disconnect(void)
-{
- if (pptp_server) close(callmgr_sock);
- close(pptp_fd);
-}
-
-static int open_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window)
-{
- /* Try to open unix domain socket to call manager. */
- struct sockaddr_un where;
- const int NUM_TRIES = 3;
- int i, fd;
- pid_t pid;
- int status;
- /* Open socket */
- if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0)
- {
- fatal("Could not create unix domain socket: %s", strerror(errno));
- }
- /* Make address */
- callmgr_name_unixsock(&where, inetaddr, localbind);
- for (i = 0; i < NUM_TRIES; i++)
- {
- if (connect(fd, (struct sockaddr *) &where, sizeof(where)) < 0)
- {
- /* couldn't connect. We'll have to launch this guy. */
-
- unlink (where.sun_path);
-
- /* fork and launch call manager process */
- switch (pid = fork())
- {
- case -1: /* failure */
- fatal("fork() to launch call manager failed.");
- case 0: /* child */
- {
- close (fd);
- close(pptp_fd);
- /* close the pty and gre in the call manager */
- // close(pty_fd);
- //close(gre_fd);
- launch_callmgr(call_id,inetaddr, phonenr,window);
- }
- default: /* parent */
- waitpid(pid, &status, 0);
- if (status!= 0)
- {
- close(fd);
- error("Call manager exited with error %d", status);
- return -1;
- }
- break;
- }
- sleep(1);
- }
- else return fd;
- }
- close(fd);
- error("Could not launch call manager after %d tries.", i);
- return -1; /* make gcc happy */
-}
-
-/*** call the call manager main ***********************************************/
-static void launch_callmgr(int call_id,struct in_addr inetaddr, char *phonenr,int window)
-{
- char win[10];
- char call[10];
- char *my_argv[9] = { "pptp", inet_ntoa(inetaddr), "--call_id",call,"--phone",phonenr,"--window",win,NULL };
- char buf[128];
- sprintf(win,"%u",window);
- sprintf(call,"%u",call_id);
- snprintf(buf, sizeof(buf), "pptp: call manager for %s", my_argv[1]);
- //inststr(argc, argv, envp, buf);
- exit(callmgr_main(8, my_argv, environ));
-}
-
-/*** exchange data with the call manager *************************************/
-/* XXX need better error checking XXX */
-static int get_call_id(int sock, pid_t gre, pid_t pppd,
- u_int16_t *peer_call_id)
-{
- u_int16_t m_call_id, m_peer_call_id;
- /* write pid's to socket */
- /* don't bother with network byte order, because pid's are meaningless
- * outside the local host.
- */
- int rc;
- rc = write(sock, &gre, sizeof(gre));
- if (rc != sizeof(gre))
- return -1;
- rc = write(sock, &pppd, sizeof(pppd));
- if (rc != sizeof(pppd))
- return -1;
- rc = read(sock, &m_call_id, sizeof(m_call_id));
- if (rc != sizeof(m_call_id))
- return -1;
- rc = read(sock, &m_peer_call_id, sizeof(m_peer_call_id));
- if (rc != sizeof(m_peer_call_id))
- return -1;
- /*
- * XXX FIXME ... DO ERROR CHECKING & TIME-OUTS XXX
- * (Rhialto: I am assuming for now that timeouts are not relevant
- * here, because the read and write calls would return -1 (fail) when
- * the peer goes away during the process. We know it is (or was)
- * running because the connect() call succeeded.)
- * (James: on the other hand, if the route to the peer goes away, we
- * wouldn't get told by read() or write() for quite some time.)
- */
- *peer_call_id = m_peer_call_id;
- return 0;
-}
-
-void plugin_init(void)
-{
- /*if (!ppp_available() && !new_style_driver)
- {
- fatal("Linux kernel does not support PPP -- are you running 2.4.x?");
- }*/
-
- add_options(Options);
-
- info("PPTP plugin version %s compiled for pppd-%s, linux-%s",
- VERSION, PPPD_VERSION,KERNELVERSION);
-
- the_channel = &pptp_channel;
- modem = 0;
-}
-
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