pppoe: Do not use lcp_allowoptions[] and lcp_wantoptions[] in discovery.c code

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

diff --git a/pppd/plugins/pppoe/plugin.c b/pppd/plugins/pppoe/plugin.c
index f705b5facd7392fcc940b89b31c2ee7bb3e9ed3d..e9353eb009b4a63dabdb22a2845d5c6960090f7c 100644 (file)
--- a/pppd/plugins/pppoe/plugin.c
+++ b/pppd/plugins/pppoe/plugin.c
@@ -64,7 +64,7 @@ extern int new_style_driver;
 char *pppd_pppoe_service = NULL;
 static char *acName = NULL;
 static char *existingSession = NULL;
-static int printACNames = 0;
+int pppoe_verbose = 0;
 static char *pppoe_reqd_mac = NULL;
 unsigned char pppoe_reqd_mac_addr[6];
 static char *pppoe_host_uniq;
@@ -89,9 +89,9 @@ static option_t Options[] = {
       "Attach to existing session (sessid:macaddr)" },
     { "rp_pppoe_sess",    o_string, &existingSession,
       "Legacy alias for pppoe-sess", OPT_ALIAS },
-    { "pppoe-verbose", o_int, &printACNames,
+    { "pppoe-verbose", o_int, &pppoe_verbose,
       "Be verbose about discovered access concentrators" },
-    { "rp_pppoe_verbose", o_int, &printACNames,
+    { "rp_pppoe_verbose", o_int, &pppoe_verbose,
       "Legacy alias for pppoe-verbose", OPT_ALIAS },
     { "pppoe-mac", o_string, &pppoe_reqd_mac,
       "Only connect to specified MAC address" },
@@ -128,7 +128,6 @@ PPPOEInitDevice(void)
     conn->ifName = devnam;
     conn->discoverySocket = -1;
     conn->sessionSocket = -1;
-    conn->printACNames = printACNames;
     conn->discoveryTimeout = pppoe_padi_timeout;
     conn->discoveryAttempts = pppoe_padi_attempts;
     return 1;
@@ -162,8 +161,8 @@ PPPOEConnectDevice(void)
     }
 
     /* Restore configuration */
-    lcp_allowoptions[0].mru = conn->mtu;
-    lcp_wantoptions[0].mru = conn->mru;
+    lcp_allowoptions[0].mru = conn->mtu = conn->storedmtu;
+    lcp_wantoptions[0].mru = conn->mru = conn->storedmru;
 
     /* Update maximum MRU */
     s = socket(AF_INET, SOCK_DGRAM, 0);
@@ -180,9 +179,9 @@ PPPOEConnectDevice(void)
     close(s);
 
     if (lcp_allowoptions[0].mru > ifr.ifr_mtu - TOTAL_OVERHEAD)
-       lcp_allowoptions[0].mru = ifr.ifr_mtu - TOTAL_OVERHEAD;
+       lcp_allowoptions[0].mru = conn->mtu = ifr.ifr_mtu - TOTAL_OVERHEAD;
     if (lcp_wantoptions[0].mru > ifr.ifr_mtu - TOTAL_OVERHEAD)
-       lcp_wantoptions[0].mru = ifr.ifr_mtu - TOTAL_OVERHEAD;
+       lcp_wantoptions[0].mru = conn->mru = ifr.ifr_mtu - TOTAL_OVERHEAD;
 
     if (pppoe_host_uniq) {
        if (!parseHostUniq(pppoe_host_uniq, &conn->hostUniq))
@@ -213,9 +212,24 @@ PPPOEConnectDevice(void)
     } else {
        conn->discoverySocket =
             openInterface(conn->ifName, Eth_PPPOE_Discovery, conn->myEth);
-       discovery(conn);
+       if (conn->discoverySocket < 0) {
+           error("Failed to create PPPoE discovery socket: %m");
+           goto errout;
+       }
+       discovery1(conn);
+       /* discovery1() may update conn->mtu and conn->mru */
+       lcp_allowoptions[0].mru = conn->mtu;
+       lcp_wantoptions[0].mru = conn->mru;
+       if (conn->discoveryState != STATE_RECEIVED_PADO) {
+           error("Unable to complete PPPoE Discovery phase 1");
+           goto errout;
+       }
+       discovery2(conn);
+       /* discovery2() may update conn->mtu and conn->mru */
+       lcp_allowoptions[0].mru = conn->mtu;
+       lcp_wantoptions[0].mru = conn->mru;
        if (conn->discoveryState != STATE_SESSION) {
-           error("Unable to complete PPPoE Discovery");
+           error("Unable to complete PPPoE Discovery phase 2");
            goto errout;
        }
     }
@@ -444,8 +458,8 @@ void pppoe_check_options(void)
        lcp_wantoptions[0].mru = MAX_PPPOE_MTU;
 
     /* Save configuration */
-    conn->mtu = lcp_allowoptions[0].mru;
-    conn->mru = lcp_wantoptions[0].mru;
+    conn->storedmtu = lcp_allowoptions[0].mru;
+    conn->storedmru = lcp_wantoptions[0].mru;
 
     ccp_allowoptions[0].deflate = 0;
     ccp_wantoptions[0].deflate = 0;