- Add startup-config(5) manpage [FIXME].

[l2tpns.git] / garden.c

diff --git a/garden.c b/garden.c
index b0abf21..ba228cd 100644 (file)
--- a/garden.c
+++ b/garden.c
@@ -7,9 +7,11 @@
 #include "plugin.h"
 #include "control.h"
 
-char const *cvs_id = "$Id: garden.c,v 1.9 2004-11-03 13:23:58 bodea Exp $";
+/* walled garden */
 
-int __plugin_api_version = 1;
+char const *cvs_id = "$Id: garden.c,v 1.13 2004-11-17 08:23:34 bodea Exp $";
+
+int plugin_api_version = PLUGIN_API_VERSION;
 static struct pluginfuncs *p = 0;
 
 static int iam_master = 0;     // We're all slaves! Slaves I tell you!
@@ -45,7 +47,7 @@ int plugin_post_auth(struct param_post_auth *data)
        // Ignore if user authentication was successful
        if (data->auth_allowed) return PLUGIN_RET_OK;
 
-       p->_log(3, 0, 0, 0, "Walled Garden allowing login\n");
+       p->log(3, 0, 0, 0, "Walled Garden allowing login\n");
        data->auth_allowed = 1;
        data->s->walled_garden = 1;
        return PLUGIN_RET_OK;
@@ -73,46 +75,62 @@ int plugin_kill_session(struct param_new_session *data)
        return PLUGIN_RET_OK;
 }
 
+char *plugin_control_help[] = {
+       "  garden USER|SID       Put user into the walled garden",
+       "  ungarden USER|SID     Release user",
+       0
+};
+
 int plugin_control(struct param_control *data)
 {
-       sessiont *s;
        sessionidt session;
+       sessiont *s = 0;
+       int flag;
+       char *end;
+
+       if (data->argc < 1 || (strcmp(data->argv[0], "garden") && strcmp(data->argv[0], "ungarden")))
+               return PLUGIN_RET_OK; // not for us
+
+       flag = data->argv[0][0] == 'g';
 
        if (!iam_master)        // All garden processing happens on the master.
-               return PLUGIN_RET_OK;
+       {
+               data->response = NSCTL_RES_ERR;
+               data->additional = "must be run on the cluster master";
+               return PLUGIN_RET_STOP;
+       }
 
-       if (data->type != PKT_GARDEN && data->type != PKT_UNGARDEN)
-               return PLUGIN_RET_OK;
+       if (data->argc != 2)
+       {
+               data->response = NSCTL_RES_ERR;
+               data->additional = "one argument required: username or session id";
+               return PLUGIN_RET_STOP;
+       }
 
-       if (!data->data && data->data_length)
-               return PLUGIN_RET_OK;
+       if (!(session = strtol(data->argv[0], &end, 10)) || *end)
+               session = p->get_session_by_username(data->argv[0]);
 
-       session = atoi((char*)(data->data));
-       if (!session)
-               return PLUGIN_RET_OK;
+       if (session)
+               s = p->get_session_by_id(session);
 
-       data->send_response = 1;
-       s = p->get_session_by_id(session);
        if (!s || !s->ip)
        {
-               char *errormsg = "Session not connected";
-               *(short *)(data->response + 2) = ntohs(PKT_RESP_ERROR);
-               sprintf((data->response + data->response_length), "%s", errormsg);
-               data->response_length += strlen(errormsg) + 1;
-
-               p->_log(3, 0, 0, 0, "Unknown session %d\n", session);
+               data->response = NSCTL_RES_ERR;
+               data->additional = "session not found";
                return PLUGIN_RET_STOP;
        }
-       *(short *)(data->response + 2) = ntohs(PKT_RESP_OK);
 
-       if (!(garden_session(s, (data->type == PKT_GARDEN))))
+       if (s->walled_garden == flag)
        {
-               char *errormsg = "User not connected";
-               *(short *)(data->response + 2) = ntohs(PKT_RESP_ERROR);
-               sprintf((data->response + data->response_length), "%s", errormsg);
-               data->response_length += strlen(errormsg) + 1;
+               data->response = NSCTL_RES_ERR;
+               data->additional = flag ? "already in walled garden" : "not in walled garden";
+               return PLUGIN_RET_STOP;
        }
 
+       garden_session(s, flag);
+       data->response = NSCTL_RES_OK;
+       data->additional = 0;
+
        return PLUGIN_RET_STOP;
 }
 
@@ -123,7 +141,7 @@ int plugin_become_master(void)
 
        for (i = 0; up_commands[i] && *up_commands[i]; i++)
        {
-               p->_log(3, 0, 0, 0, "Running %s\n", up_commands[i]);
+               p->log(3, 0, 0, 0, "Running %s\n", up_commands[i]);
                system(up_commands[i]);
        }
 
@@ -134,7 +152,10 @@ int plugin_become_master(void)
 int plugin_new_session_master(sessiont * s)
 {      
        if (s->walled_garden)
+       {
+               s->walled_garden = 0;
                garden_session(s, 1);
+       }
 
        return PLUGIN_RET_OK;
 }
@@ -148,9 +169,9 @@ int garden_session(sessiont *s, int flag)
 
        if (flag == 1)
        {
-               p->_log(2, 0, 0, s->tunnel, "Garden user %s (%s)\n", s->user, p->inet_toa(htonl(s->ip)));
+               p->log(2, 0, 0, s->tunnel, "Garden user %s (%s)\n", s->user, p->inet_toa(htonl(s->ip)));
                snprintf(cmd, sizeof(cmd), "iptables -t nat -A garden_users -s %s -j garden", p->inet_toa(htonl(s->ip)));
-               p->_log(3, 0, 0, s->tunnel, "%s\n", cmd);
+               p->log(3, 0, 0, s->tunnel, "%s\n", cmd);
                system(cmd);
                s->walled_garden = 1;
        }
@@ -160,7 +181,7 @@ int garden_session(sessiont *s, int flag)
                int count = 40;
 
                // Normal User
-               p->_log(2, 0, 0, s->tunnel, "Un-Garden user %s (%s)\n", s->user, p->inet_toa(htonl(s->ip)));
+               p->log(2, 0, 0, s->tunnel, "Un-Garden user %s (%s)\n", s->user, p->inet_toa(htonl(s->ip)));
                // Kick off any duplicate usernames
                // but make sure not to kick off ourself
                if (s->ip && !s->die && (other = p->get_session_by_username(s->user)) && s != p->get_session_by_id(other)) {
@@ -171,7 +192,7 @@ int garden_session(sessiont *s, int flag)
                s->pin = s->pout = 0;
 
                snprintf(cmd, sizeof(cmd), "iptables -t nat -D garden_users -s %s -j garden", p->inet_toa(htonl(s->ip)));
-               p->_log(3, 0, 0, s->tunnel, "%s\n", cmd);
+               p->log(3, 0, 0, s->tunnel, "%s\n", cmd);
                while (--count)
                {
                        int status = system(cmd);
@@ -215,7 +236,7 @@ int plugin_init(struct pluginfuncs *funcs)
                int i;
                for (i = 0; down_commands[i] && *down_commands[i]; i++)
                {
-                       p->_log(3, 0, 0, 0, "Running %s\n", down_commands[i]);
+                       p->log(3, 0, 0, 0, "Running %s\n", down_commands[i]);
                        system(down_commands[i]);
                }
        }
@@ -232,7 +253,7 @@ void plugin_done()
 
        for (i = 0; down_commands[i] && *down_commands[i]; i++)
        {
-               p->_log(3, 0, 0, 0, "Running %s\n", down_commands[i]);
+               p->log(3, 0, 0, 0, "Running %s\n", down_commands[i]);
                system(down_commands[i]);
        }
 }