pppoe plugin stuff - Michal Ostrowski's version, lightly hacked

[ppp.git] / pppd / plugins / pppoe / pppd_utils.c

diff --git a/pppd/plugins/pppoe/pppd_utils.c b/pppd/plugins/pppoe/pppd_utils.c
new file mode 100644 (file)
index 0000000..86a2ca7
--- /dev/null
+++ b/pppd/plugins/pppoe/pppd_utils.c
@@ -0,0 +1,162 @@
+/* PPPoE support library "libpppoe"
+ *
+ * Copyright 2000 Michal Ostrowski <mostrows@styx.uwaterloo.ca>,
+ *               Jamal Hadi Salim <hadi@cyberus.ca>
+ *
+ *  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 "pppoe.h"
+
+/*
+ *
+ */
+int build_ppp_opts(char *args[],struct session *ses)
+{
+    char buf[256];
+    int retval=0,i=0;
+    
+    memset(buf,0,256);
+    
+/* pppds path */
+    if ( NULL != ses->filt->pppd){
+       args[0]=(char *)malloc(strlen(ses->filt->pppd));
+        strcpy (args[0],ses->filt->pppd);
+    } else {
+       args[0]=(char *)malloc(strlen(_PATH_PPPD));
+        strcpy (args[0],_PATH_PPPD);
+    }
+    
+/*  long device name */
+    snprintf(buf, 256,"%02x:%02x:%02x:%02x:%02x:%02x/%04x/%s",
+            ses->remote.sll_addr[0],
+            ses->remote.sll_addr[1],
+            ses->remote.sll_addr[2],
+            ses->remote.sll_addr[3],
+            ses->remote.sll_addr[4],
+            ses->remote.sll_addr[5],
+            ses->sp.sa_addr.pppoe.sid,
+            ses->name);
+    args[1]=(char *)malloc(strlen(buf));
+    strcpy(args[1],buf);
+    
+    i=2;
+    
+/* override options file */
+    if (NULL != ses->filt->fname ) {
+       
+       if (!ses->filt->peermode) {
+           args[i]=(char *)malloc(strlen("file"));
+           strcpy (args[i],"file");
+           i++;
+           args[i]=(char *)malloc(strlen(ses->filt->fname)+1);
+           strcpy (args[i],ses->filt->fname);
+           i++;
+       } else{ /* peermode */
+           args[i]=(char *)malloc(strlen("call"));
+           strcpy (args[i],"call");
+           i++;
+           args[i]=(char *)malloc(strlen(ses->filt->fname)+1);
+           strcpy (args[i],ses->filt->fname);
+           i++;
+       }
+    }
+    
+/* user requested for a specific name */
+    if (NULL != ses->filt->ntag) {
+       if ( NULL != ses->filt->ntag->tag_data) {
+           args[i]=(char *)malloc(strlen("pppoe_ac_name"));
+           strcpy(args[i],"pppoe_ac_name");
+           i++;
+           args[i]=(char *)malloc(ntohs(ses->filt->ntag->tag_len));
+           strcpy(args[i],ses->filt->ntag->tag_data);
+           i++;
+       }
+    }
+/* user requested for a specific service name */
+    if (NULL != ses->filt->stag) {
+       if ( NULL != ses->filt->stag->tag_data) {
+           args[i]=(char *)malloc(strlen("pppoe_srv_name"));
+           strcpy(args[i],"pppoe_srv_name");
+           i++;
+           args[i]=(char *)malloc(ntohs(ses->filt->stag->tag_len));
+           strcpy(args[i],ses->filt->stag->tag_data);
+           i++;
+       }
+    }
+    
+/*
+ */
+    if (ses->opt_daemonize) {
+       args[i]=(char *)malloc(strlen("nodetach"));
+       strcpy(args[i],"nodetach");
+       i++;
+    }
+    
+    args[i]=NULL;
+    {
+       int j;
+       poe_info(ses,"calling pppd with %d args\n",i);
+       j=i;
+       for (i=0; i<j,NULL !=args[i]; i++) {
+           poe_info(ses," <%d: %s > \n",i,args[i]);
+       }
+    }
+    return retval;
+}
+
+
+/*
+ *
+ */
+int ppp_connect (struct session *ses)
+{
+    int ret,pid;
+    char *args[32];
+    
+    
+    poe_info(ses,"calling ses_connect\n");
+    do{
+       ret = session_connect(ses);
+    }while(ret == 0);
+
+    if (ret > 0 )
+       if (ses->np == 1 && ret == 1)
+           return ses->np; /* -G */
+    if (ses->np == 2)
+       return ses->np; /* -H */
+
+    if( ret <= 0){
+       return ret;
+    }
+    
+    poe_info(ses,"DONE calling ses_connect np is %d \n",ses->np);
+    
+    
+    pid = fork ();
+    if (pid < 0) {
+       poe_error (ses,"unable to fork() for pppd: %m");
+       poe_die (-1);
+    }
+    
+    
+    if(!pid) {
+       poe_info(ses,"calling build_ppp_opts\n");
+       if (0> build_ppp_opts(args,ses)) {
+           poe_error(ses,"ppp_connect: failed to build ppp_opts\n");
+           return -1;
+       }
+       execvp(args[0],args);
+       poe_info (ses," child got killed");
+    } else if( ses->type == SESSION_CLIENT) {
+       if (!ses->opt_daemonize)
+           return 1;
+       pause();
+       poe_info (ses," OK we got killed");
+       return -1;
+    }
+    return 1;
+}
+