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added L2TPv2 (PPP over L2TP, a.k.a. UDP tunnels) support

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Supported:
 - L2TPv2 (PPP over L2TP, a.k.a. UDP tunnels)
 - LAC

 Not supported:
 - LNS (require PPP server support)
 - L2TPv3 ethernet pseudowires
 - L2TPv3 VLAN pseudowire
 - L2TPv3 PPP pseudowires
 - L2TPv3 IP encapsulation
 - L2TPv3 IP pseudowire
 - L2TP tunnel switching - http://tools.ietf.org/html/draft-ietf-l2tpext-tunnel-switching-08
 - Multiple tunnels per UDP socket, as well as multiple sessions per tunnel
 - Hidden AVPs
This commit is contained in:
Sylvain Rochet
2012-07-09 23:25:32 +02:00
parent 0797ab6bc6
commit f534e80c71
11 changed files with 1505 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
src/api/pppapi.c
View File

@@ -142,6 +142,47 @@ int pppapi_over_ethernet_open(ppp_pcb *pcb, struct netif *ethif, const char *ser
#endif /* PPPOE_SUPPORT */
#if PPPOL2TP_SUPPORT
/**
* Call ppp_over_l2tp_open() inside the tcpip_thread context.
*/
static void pppapi_do_ppp_over_l2tp_open(struct pppapi_msg_msg *msg) {
msg->err = ppp_over_l2tp_open(msg->ppp, msg->msg.l2tpopen.ipaddr,
msg->msg.l2tpopen.port,
#if PPPOL2TP_AUTH_SUPPORT
msg->msg.l2tpopen.secret,
msg->msg.l2tpopen.secret_len,
#else /* PPPOL2TP_AUTH_SUPPORT */
NULL,
#endif /* PPPOL2TP_AUTH_SUPPORT */
msg->msg.l2tpopen.link_status_cb, msg->msg.l2tpopen.link_status_ctx);
TCPIP_PPPAPI_ACK(msg);
}
/**
* Call ppp_over_l2tp_open() in a thread-safe way by running that function inside the
* tcpip_thread context.
*/
int pppapi_over_l2tp_open(ppp_pcb *pcb, ip_addr_t *ipaddr, u16_t port, u8_t *secret, u8_t secret_len,
ppp_link_status_cb_fn link_status_cb, void *link_status_ctx) {
struct pppapi_msg msg;
msg.function = pppapi_do_ppp_over_l2tp_open;
msg.msg.ppp = pcb;
msg.msg.msg.l2tpopen.ipaddr = ipaddr;
msg.msg.msg.l2tpopen.port = port;
#if PPPOL2TP_AUTH_SUPPORT
msg.msg.msg.l2tpopen.secret = secret;
msg.msg.msg.l2tpopen.secret_len = secret_len;
#endif /* PPPOL2TP_AUTH_SUPPORT */
msg.msg.msg.l2tpopen.link_status_cb = link_status_cb;
msg.msg.msg.l2tpopen.link_status_ctx = link_status_ctx;
TCPIP_PPPAPI(&msg);
return msg.msg.err;
}
#endif /* PPPOL2TP_SUPPORT */
/**
* Call ppp_close() inside the tcpip_thread context.
*/