2 * ppp.c - Network Point to Point Protocol program file.
64  * if_ppp.h - Point-to-Point Protocol definitions.
167  * PPP Data Link Layer "protocol" table.
168  * One entry per supported protocol.
212 static err_t ppp_netif_output(struct netif *netif, struct pbuf *pb, u16_t protocol);
354   /* LCP not open, close link protocol */  in ppp_close()
371     /* forced link termination, this will force link protocol to disconnect. */  in ppp_close()
504 static err_t ppp_netif_output(struct netif *netif, struct pbuf *pb, u16_t protocol) {  in ppp_netif_output()  argument
512       || (protocol == PPP_IP && !pcb->if4_up)  in ppp_netif_output()
515       || (protocol == PPP_IPV6 && !pcb->if6_up)  in ppp_netif_output()
535   if (protocol == PPP_IP && pcb->vj_enabled) {  in ppp_netif_output()
539            protocol = PPP_IP; */  in ppp_netif_output()
545         protocol = PPP_VJC_COMP;  in ppp_netif_output()
551         protocol = PPP_VJC_UNCOMP;  in ppp_netif_output()
569     if ((err = mppe_compress(pcb, &pcb->mppe_comp, &pb, protocol)) != ERR_OK) {  in ppp_netif_output()
582     protocol = PPP_COMP;  in ppp_netif_output()
591   err = pcb->link_cb->netif_output(pcb, pcb->link_ctx_cb, pb, protocol);  in ppp_netif_output()
717    * Initialize each protocol.  in ppp_new()
744   /* Start protocol */  in ppp_start()
774   u16_t protocol;  in ppp_input()  local
785   protocol = (((u8_t *)pb->payload)[0] << 8) | ((u8_t*)pb->payload)[1];  in ppp_input()
791   pbuf_remove_header(pb, sizeof(protocol));  in ppp_input()
800   if (protocol != PPP_LCP && pcb->lcp_fsm.state != PPP_FSM_OPENED) {  in ppp_input()
810    && !(protocol == PPP_LCP  in ppp_input()
812    || protocol == PPP_LQR  in ppp_input()
815    || protocol == PPP_PAP  in ppp_input()
818    || protocol == PPP_CHAP  in ppp_input()
821    || protocol == PPP_EAP  in ppp_input()
824     ppp_dbglog("discarding proto 0x%x in phase %d", protocol, pcb->phase);  in ppp_input()
833    * the protocol is in the range of what should be encrypted.  in ppp_input()
836   if (pcb->settings.require_mppe && protocol != PPP_COMP && protocol < 0x8000) {  in ppp_input()
842   if (protocol == PPP_COMP) {  in ppp_input()
863     /* Extract and hide protocol (do PFC decompression if necessary) */  in ppp_input()
866       protocol = pl[0];  in ppp_input()
869       protocol = (pl[0] << 8) | pl[1];  in ppp_input()
875   switch(protocol) {  in ppp_input()
878     case PPP_IP:            /* Internet Protocol */  in ppp_input()
885     case PPP_IPV6:          /* Internet Protocol Version 6 */  in ppp_input()
926        * Upcall the proper protocol input routine.  in ppp_input()
929         if (protp->protocol == protocol) {  in ppp_input()
947         if (protocol == (protp->protocol & ~0x8000)  in ppp_input()
957       pname = protocol_name(protocol);  in ppp_input()
959         ppp_warn("Unsupported protocol '%s' (0x%x) received", pname, protocol);  in ppp_input()
962         ppp_warn("Unsupported protocol 0x%x received", protocol);  in ppp_input()
964         if (pbuf_add_header(pb, sizeof(protocol))) {  in ppp_input()
1171  * sifdown - Disable the indicated protocol and config the interface
1279  * sif6down - Disable the indicated protocol and config the interface
1428 /* List of protocol names, to make our messages a little more informative. */
1442   { 0x33, "Stream Protocol ST-II" },
1452   { 0x49, "Serial Data Transport Protocol (PPP-SDTP)" },
1461   { 0x5b, "Vendor-Specific Network Protocol" },
1475   { 0x0207, "Cisco Discovery Protocol" },
1477   { 0x020b, "STP - Scheduled Transfer Protocol" },
1478   { 0x020d, "EDP - Extreme Discovery Protocol" },
1479   { 0x0211, "Optical Supervisory Channel Protocol" },
1480   { 0x0213, "Optical Supervisory Channel Protocol" },
1483   { 0x0235, "Apple Client Server Protocol" },
1487   { 0x0287, "ETSI TETRA Network Protocol Type 1" },
1488   { 0x0289, "Multichannel Flow Treatment Protocol" },
1493   { 0x4001, "Cray Communications Control Protocol" },
1494   { 0x4003, "CDPD Mobile Network Registration Protocol" },
1495   { 0x4005, "Expand accelerator protocol" },
1498   { 0x400B, "Cetacean Network Detection Protocol" },
1500   { 0x4023, "RefTek Protocol" },
1503   { 0x405b, "Vendor-Specific Protocol (VSP)" },
1504   { 0x8021, "Internet Protocol Control Protocol" },
1505   { 0x8023, "OSI Network Layer Control Protocol" },
1506   { 0x8025, "Xerox NS IDP Control Protocol" },
1507   { 0x8027, "DECnet Phase IV Control Protocol" },
1508   { 0x8029, "Appletalk Control Protocol" },
1509   { 0x802b, "Novell IPX Control Protocol" },
1511   { 0x8033, "Stream Protocol Control Protocol" },
1512   { 0x8035, "Banyan Vines Control Protocol" },
1513   { 0x803d, "Multi-Link Control Protocol" },
1514   { 0x803f, "NETBIOS Framing Control Protocol" },
1515   { 0x8041, "Cisco Systems Control Protocol" },
1517   { 0x8045, "Fujitsu LBLB Control Protocol" },
1518   { 0x8047, "DCA Remote Lan Network Control Protocol (RLNCP)" },
1519   { 0x8049, "Serial Data Control Protocol (PPP-SDCP)" },
1520   { 0x804b, "SNA over 802.2 Control Protocol" },
1521   { 0x804d, "SNA Control Protocol" },
1522   { 0x804f, "IP6 Header Compression Control Protocol" },
1523   { 0x8051, "KNX Bridging Control Protocol" },
1524   { 0x8053, "Encryption Control Protocol" },
1525   { 0x8055, "Individual Link Encryption Control Protocol" },
1526   { 0x8057, "IPv6 Control Protocol" },
1527   { 0x8059, "PPP Muxing Control Protocol" },
1528   { 0x805b, "Vendor-Specific Network Control Protocol (VSNCP)" },
1529   { 0x806f, "Stampede Bridging Control Protocol" },
1530   { 0x8073, "MP+ Control Protocol" },
1531   { 0x80c1, "NTCITS IPI Control Protocol" },
1532   { 0x80fb, "Single Link Compression Control Protocol" },
1533   { 0x80fd, "Compression Control Protocol" },
1534   { 0x8207, "Cisco Discovery Protocol Control" },
1536   { 0x820b, "STP - Control Protocol" },
1537   { 0x820d, "EDPCP - Extreme Discovery Protocol Ctrl Prtcl" },
1538   { 0x8235, "Apple Client Server Protocol Control" },
1540   { 0x8285, "IEEE p1284.4 standard - Protocol Control" },
1541   { 0x8287, "ETSI TETRA TNP1 Control Protocol" },
1542   { 0x8289, "Multichannel Flow Treatment Protocol" },
1543   { 0xc021, "Link Control Protocol" },
1544   { 0xc023, "Password Authentication Protocol" },
1546   { 0xc027, "Shiva Password Authentication Protocol" },
1547   { 0xc029, "CallBack Control Protocol (CBCP)" },
1548   { 0xc02b, "BACP Bandwidth Allocation Control Protocol" },
1550   { 0xc05b, "Vendor-Specific Authentication Protocol (VSAP)" },
1551   { 0xc081, "Container Control Protocol" },
1552   { 0xc223, "Challenge Handshake Authentication Protocol" },
1553   { 0xc225, "RSA Authentication Protocol" },
1554   { 0xc227, "Extensible Authentication Protocol" },
1556   { 0xc26f, "Stampede Bridging Authorization Protocol" },
1557   { 0xc281, "Proprietary Authentication Protocol" },
1558   { 0xc283, "Proprietary Authentication Protocol" },
1559   { 0xc481, "Proprietary Node ID Authentication Protocol" },
1564  * protocol_name - find a name for a PPP protocol.