int epollfd = -1; // event polling
time_t basetime = 0; // base clock
char hostname[MAXHOSTNAME] = ""; // us.
-static int tunidx; // ifr_ifindex of tun device
+int tunidx; // ifr_ifindex of tun device
int nlseqnum = 0; // netlink sequence number
int min_initok_nlseqnum = 0; // minimun seq number for messages after init is ok
static int syslog_log = 0; // are we logging to syslog
struct cli_session_actions *cli_session_actions = NULL; // Pending session changes requested by CLI
struct cli_tunnel_actions *cli_tunnel_actions = NULL; // Pending tunnel changes required by CLI
-union iphash {
- sessionidt sess;
- union iphash *idx;
-} ip_hash[256]; // Mapping from IP address to session structures.
+union iphash ip_hash[256]; // Mapping from IP address to session structures.
struct ipv6radix {
sessionidt sess;
CONFIG("disable_sending_hello", disable_sending_hello, BOOL),
CONFIG("disable_no_spoof", disable_no_spoof, BOOL),
CONFIG("bind_multi_address", bind_multi_address, STRING),
+ CONFIG("grp_txrate_average_time", grp_txrate_average_time, INT),
CONFIG("pppoe_only_equal_svc_name", pppoe_only_equal_svc_name, BOOL),
{ NULL, 0, 0, 0 }
};
bundlet *bundle = NULL; // Array of bundle structures.
fragmentationt *frag = NULL; // Array of fragmentation structures.
sessiont *session = NULL; // Array of session structures.
+groupsesst *grpsession = NULL; // Array of groupsesst structures.
sessionlocalt *sess_local = NULL; // Array of local per-session counters.
radiust *radius = NULL; // Array of radius structures.
ippoolt *ip_address_pool = NULL; // Array of dynamic IP addresses.
struct Tringbuffer *ringbuffer = NULL;
#endif
-static ssize_t netlink_send(struct nlmsghdr *nh);
-static void netlink_addattr(struct nlmsghdr *nh, int type, const void *data, int alen);
-static void cache_ipmap(in_addr_t ip, sessionidt s);
static void uncache_ipmap(in_addr_t ip);
static void cache_ipv6map(struct in6_addr ip, int prefixlen, sessionidt s);
static void free_ip_address(sessionidt s);
if (f) *f = t.tv_sec + t.tv_usec / 1000000.0;
if (t.tv_sec != time_now)
{
- time_now = t.tv_sec;
- time_changed++;
+ time_now = t.tv_sec;
+ time_changed++;
+ grp_time_changed();
}
// Time in milliseconds
}
}
-static ssize_t netlink_send(struct nlmsghdr *nh)
+ssize_t netlink_send(struct nlmsghdr *nh)
{
struct sockaddr_nl nladdr;
struct iovec iov;
}
/* adapted from iproute2 */
-static void netlink_addattr(struct nlmsghdr *nh, int type, const void *data, int alen)
+void netlink_addattr(struct nlmsghdr *nh, int type, const void *data, int alen)
{
int len = RTA_LENGTH(alen);
struct rtattr *rta;
//
// (It's actually cached in network order)
//
-static void cache_ipmap(in_addr_t ip, sessionidt s)
+void cache_ipmap(in_addr_t ip, sessionidt s)
{
in_addr_t nip = htonl(ip); // MUST be in network order. I.e. MSB must in be ((char *) (&ip))[0]
uint8_t *a = (uint8_t *) &nip;
void processipout(uint8_t *buf, int len)
{
sessionidt s;
+ groupidt g;
sessiont *sp;
tunnelidt t;
in_addr_t ip;
}
ip = *(uint32_t *)(buf + 16);
- if (!(s = sessionbyip(ip)))
+ if ((g = grp_groupbyip(ip)))
+ {
+ s = grp_getnextsession(g, ip);
+ if (!s)
+ {
+ // Is this a packet for a session that doesn't exist?
+ static int rate = 0; // Number of ICMP packets we've sent this second.
+ static int last = 0; // Last time we reset the ICMP packet counter 'rate'.
+
+ if (last != time_now)
+ {
+ last = time_now;
+ rate = 0;
+ }
+
+ if (rate++ < config->icmp_rate) // Only send a max of icmp_rate per second.
+ {
+ LOG(4, 0, 0, "IP: Sending ICMP host unreachable to %s\n", fmtaddr(*(in_addr_t *)(buf + 12), 0));
+ host_unreachable(*(in_addr_t *)(buf + 12), *(uint16_t *)(buf + 4),
+ config->bind_address ? config->bind_address : my_address, buf, len);
+ }
+ return;
+ }
+ }
+ else if (!(s = sessionbyip(ip)))
{
// Is this a packet for a session that doesn't exist?
static int rate = 0; // Number of ICMP packets we've sent this second.
session[s].die = TIME + 150; // Clean up in 15 seconds
if (session[s].ip)
- { // IP allocated, clear and unroute
+ { // IP allocated, clear and unroute
int r;
int routed = 0;
for (r = 0; r < MAXROUTE && session[s].route[r].ip; r++)
// kill a session now
void sessionkill(sessionidt s, char *reason)
{
+ groupidt g;
+
CSTAT(sessionkill);
if (!session[s].opened) // not alive
}
LOG(2, s, session[s].tunnel, "Kill session %d (%s): %s\n", s, session[s].user, reason);
+
+ if ((g = grp_groupbysession(s)))
+ {
+ grp_removesession(g, s);
+ }
+
sessionclear(s);
cluster_send_session(s);
}
// read and process packet on tunnel (UDP)
void processudp(uint8_t *buf, int len, struct sockaddr_in *addr, uint16_t indexudpfd)
{
- uint8_t *chapresponse = NULL;
+ uint8_t *sendchalresponse = NULL;
+ uint8_t *recvchalresponse = NULL;
uint16_t l = len, t = 0, s = 0, ns = 0, nr = 0;
uint8_t *p = buf + 2;
tunnel[t].window = 1; // window of 0 is silly
LOG(4, s, t, " rx window = %u\n", tunnel[t].window);
break;
- case 11: // Challenge
+ case 11: // Request Challenge
{
LOG(4, s, t, " LAC requested CHAP authentication for tunnel\n");
- build_chap_response(b, 2, n, &chapresponse);
+ if (message == 1)
+ build_chap_response(b, 2, n, &sendchalresponse);
+ else if (message == 2)
+ build_chap_response(b, 3, n, &sendchalresponse);
}
break;
- case 13: // Response
+ case 13: // receive challenge Response
if (tunnel[t].isremotelns)
{
- chapresponse = calloc(17, 1);
- memcpy(chapresponse, b, (n < 17) ? n : 16);
+ recvchalresponse = calloc(17, 1);
+ memcpy(recvchalresponse, b, (n < 17) ? n : 16);
LOG(3, s, t, "received challenge response from REMOTE LNS\n");
}
else
control16(c, 2, version, 1); // protocol version
control32(c, 3, 3, 1); // framing
controls(c, 7, hostname, 1); // host name
- if (chapresponse) controlb(c, 13, chapresponse, 16, 1); // Challenge response
+ if (sendchalresponse) controlb(c, 13, sendchalresponse, 16, 1); // Send Challenge response
control16(c, 9, t, 1); // assigned tunnel
controladd(c, 0, t); // send the resply
}
LOG(3, s, t, "Received SCCRP\n");
if (main_quit != QUIT_SHUTDOWN)
{
- if (tunnel[t].isremotelns && chapresponse)
+ if (tunnel[t].isremotelns && recvchalresponse)
{
hasht hash;
lac_calc_rlns_auth(t, 2, hash); // id = 2 (SCCRP)
// check authenticator
- if (memcmp(hash, chapresponse, 16) == 0)
+ if (memcmp(hash, recvchalresponse, 16) == 0)
{
LOG(3, s, t, "sending SCCCN to REMOTE LNS\n");
controlt *c = controlnew(3); // sending SCCCN
controls(c, 8, Vendor_name, 1); // Vendor name
control16(c, 2, version, 1); // protocol version
control32(c, 3, 3, 1); // framing Capabilities
+ if (sendchalresponse) controlb(c, 13, sendchalresponse, 16, 1); // Challenge response
control16(c, 9, t, 1); // assigned tunnel
controladd(c, 0, t); // send
}
LOG(1, s, t, "Unknown message type %u\n", message);
break;
}
- if (chapresponse) free(chapresponse);
+ if (sendchalresponse) free(sendchalresponse);
+ if (recvchalresponse) free(recvchalresponse);
cluster_send_tunnel(t);
}
else
// No data in ECHO_TIMEOUT seconds, send LCP ECHO
if (session[s].ppp.phase >= Establish && (time_now - session[s].last_packet >= config->echo_timeout) &&
- (time_now - sess_local[s].last_echo >= ECHO_TIMEOUT))
+ (time_now - sess_local[s].last_echo >= config->echo_timeout))
{
uint8_t b[MAXETHER];
#endif /* BGP */
lac_initremotelnsdata();
+
+ grp_initdata();
}
static int assign_ip_address(sessionidt s)
LOG(0, 0, 0, "Can't lock pages: %s\n", strerror(errno));
}
+ //LOG(3, 0, 0, "Debug sizeof struct: sessiont %lu, tunnelt %lu, bundlet %lu, groupsesst %lu\n",
+ // sizeof(sessiont), sizeof(tunnelt), sizeof(bundlet), sizeof(groupsesst));
+
mainloop();
/* remove plugins (so cleanup code gets run) */
if (!session[s].bundle || (bundle[session[s].bundle].num_of_links == 1))
{
int routed = 0;
+ groupidt g;
// Add the route for this session.
for (r = 0; r < MAXROUTE && session[s].route[r].ip; r++)
}
else
cache_ipmap(session[s].ip, s);
+
+ if ((g = grp_groupbysession(s)))
+ {
+ grp_setgrouproute(g, 1);
+ cluster_send_groupe(g);
+ }
}
sess_local[s].lcp_authtype = 0; // RADIUS authentication complete
projects / l2tpns.git / commitdiff