abc/lwip
1
0
Fork 0
mirror of https://git.savannah.nongnu.org/git/lwip.git synced 2025-08-13 01:44:38 +08:00
Code Issues Packages Projects Releases Wiki Activity
lwip/src/netif/ppp/ppp.c

1583 lines
46 KiB
C
Raw Blame History

/*
* ppp.c
*
* Created on: May 12, 2012
* Author: gradator
*/
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/stats.h"
#include "lwip/sys.h"
#include "lwip/tcpip.h"
#include "lwip/api.h"
#include "lwip/snmp.h"
#include "ppp.h"
#include "fsm.h"
#include "lcp.h"
#include "ipcp.h"
#include "magic.h"
#if PAP_SUPPORT
#include "upap.h"
#endif /* PAP_SUPPORT */
#if CHAP_SUPPORT
#include "chap-new.h"
#endif /* CHAP_SUPPORT */
#if EAP_SUPPORT
#include "eap.h"
#endif /* EAP_SUPPORT */
#if CCP_SUPPORT
#include "ccp.h"
#endif /* EAP_SUPPORT */
#if ECP_SUPPORT
#include "ecp.h"
#endif /* EAP_SUPPORT */
#if PPPOE_SUPPORT
#include "netif/ppp_oe.h"
#endif /* PPPOE_SUPPORT */
/*
* Global variables.
*/
/* FIXME: global variables per PPP session */
/* FIXME: clean global variables */
int phase; /* where the link is at */
int error_count; /* # of times error() has been called */
int unsuccess; /* # unsuccessful connection attempts */
int listen_time; /* time to listen first (ms) */
int status; /* exit status for pppd */
int need_holdoff; /* need holdoff period before restarting */
/* FIXME: remove ifunit */
int ifunit; /* Interface unit number */
/* FIXME: outpacket_buf per PPP session */
u_char outpacket_buf[PPP_MRU+PPP_HDRLEN]; /* buffer for outgoing packet */
#if PPPOS_SUPPORT
u_char inpacket_buf[PPP_MRU+PPP_HDRLEN]; /* buffer for incoming packet */
#endif /* PPPOS_SUPPORT */
/* FIXME: add stats per PPP session */
#if PPP_STATS_SUPPORT
static struct timeval start_time; /* Time when link was started. */
static struct pppd_stats old_link_stats;
struct pppd_stats link_stats;
unsigned link_connect_time;
int link_stats_valid;
#endif /* PPP_STATS_SUPPORT */
/*
* PPP Data Link Layer "protocol" table.
* One entry per supported protocol.
* The last entry must be NULL.
*/
struct protent *protocols[] = {
&lcp_protent,
#if PAP_SUPPORT
&pap_protent,
#endif /* PAP_SUPPORT */
#if CHAP_SUPPORT
&chap_protent,
#endif /* CHAP_SUPPORT */
#if CBCP_SUPPORT
&cbcp_protent,
#endif
&ipcp_protent,
#ifdef INET6
&ipv6cp_protent,
#endif
#if CCP_SUPPORT
&ccp_protent,
#endif /* CCP_SUPPORT */
#if ECP_SUPPORT
&ecp_protent,
#endif /* ECP_SUPPORT */
#ifdef AT_CHANGE
&atcp_protent,
#endif
#if EAP_SUPPORT
&eap_protent,
#endif /* EAP_SUPPORT */
NULL
};
/* PPP packet parser states. Current state indicates operation yet to be
* completed. */
typedef enum {
PDIDLE = 0, /* Idle state - waiting. */
PDSTART, /* Process start flag. */
PDADDRESS, /* Process address field. */
PDCONTROL, /* Process control field. */
PDPROTOCOL1, /* Process protocol field 1. */
PDPROTOCOL2, /* Process protocol field 2. */
PDDATA /* Process data byte. */
} PPPDevStates;
typedef struct PPPControlRx_s {
/** unit number / ppp descriptor */
int pd;
/** the rx file descriptor */
#if PPPOS_SUPPORT /* FIXME: enable sio_fd_t back */
sio_fd_t fd;
#endif
#if PPPOE_SUPPORT
int fd;
#endif
/** receive buffer - encoded data is stored here */
#if PPP_INPROC_OWNTHREAD
u_char rxbuf[PPPOS_RX_BUFSIZE];
#endif /* PPP_INPROC_OWNTHREAD */
/* The input packet. */
struct pbuf *inHead, *inTail;
#if PPPOS_SUPPORT
u16_t inProtocol; /* The input protocol code. */
u16_t inFCS; /* Input Frame Check Sequence value. */
#endif /* PPPOS_SUPPORT */
PPPDevStates inState; /* The input process state. */
char inEscaped; /* Escape next character. */
ext_accm inACCM; /* Async-Ctl-Char-Map for input. */
} PPPControlRx;
/*
* PPP interface control block.
*/
typedef struct PPPControl_s {
PPPControlRx rx;
char openFlag; /* True when in use. */
#if PPPOE_SUPPORT
struct netif *ethif;
struct pppoe_softc *pppoe_sc;
#endif /* PPPOE_SUPPORT */
int if_up; /* True when the interface is up. */
int errCode; /* Code indicating why interface is down. */
#if PPPOS_SUPPORT
sio_fd_t fd; /* File device ID of port. */
#endif /* PPPOS_SUPPORT */
u16_t mtu; /* Peer's mru */
int pcomp; /* Does peer accept protocol compression? */
int accomp; /* Does peer accept addr/ctl compression? */
u_long lastXMit; /* Time of last transmission. */
ext_accm outACCM; /* Async-Ctl-Char-Map for output. */
#if PPPOS_SUPPORT && VJ_SUPPORT
int vjEnabled; /* Flag indicating VJ compression enabled. */
struct vjcompress vjComp; /* Van Jacobson compression header. */
#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
struct netif netif;
struct ppp_addrs addrs;
void (*linkStatusCB)(void *ctx, int errCode, void *arg);
void *linkStatusCtx;
} PPPControl;
/* Prototypes for procedures local to this file. */
static void pppStart(int pd); /** Initiate LCP open request */
static void ppp_input(void *arg);
#if PPPOE_SUPPORT
static void pppOverEthernetLinkStatusCB(int pd, int up);
static err_t pppifOutputOverEthernet(int pd, struct pbuf *p);
#endif /* PPPOE_SUPPORT */
static err_t ppp_low_level_output(struct netif *netif, struct pbuf *pb, ip_addr_t *ipaddr);
static err_t ppp_netif_init_cb(struct netif *netif);
/******************************/
/*** PUBLIC DATA STRUCTURES ***/
/******************************/
static PPPControl pppControl[NUM_PPP]; /* The PPP interface control blocks. */
/** Input helper struct, must be packed since it is stored to pbuf->payload,
* which might be unaligned.
*/
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct pppInputHeader {
PACK_STRUCT_FIELD(int unit);
PACK_STRUCT_FIELD(u16_t proto);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
/** Initiate LCP open request */
static void pppStart(int pd) {
PPPDEBUG(LOG_DEBUG, ("pppStart: unit %d\n", pd));
lcp_open(pd); /* Start protocol */
lcp_lowerup(pd);
PPPDEBUG(LOG_DEBUG, ("pppStart: finished\n"));
}
/*
* Pass the processed input packet to the appropriate handler.
* This function and all handlers run in the context of the tcpip_thread
*/
/* FIXME: maybe we should pass in two arguments pppInputHeader and payload
* this is totally stupid to make room for it and then modify the packet directly
* or it is used in output ? have to find out...
*/
static void ppp_input(void *arg) {
struct pbuf *nb = (struct pbuf *)arg;
u16_t protocol;
int pd;
pd = ((struct pppInputHeader *)nb->payload)->unit;
protocol = ((struct pppInputHeader *)nb->payload)->proto;
if(pbuf_header(nb, -(int)sizeof(struct pppInputHeader))) {
LWIP_ASSERT("pbuf_header failed\n", 0);
goto drop;
}
LINK_STATS_INC(link.recv);
snmp_inc_ifinucastpkts(&pppControl[pd].netif);
snmp_add_ifinoctets(&pppControl[pd].netif, nb->tot_len);
/*
* Toss all non-LCP packets unless LCP is OPEN.
*/
if (protocol != PPP_LCP && lcp_fsm[0].state != OPENED) {
dbglog("Discarded non-LCP packet when LCP not open");
return;
}
/* FIXME: add a phase per connection */
/*
* Until we get past the authentication phase, toss all packets
* except LCP, LQR and authentication packets.
*/
if (phase <= PHASE_AUTHENTICATE
&& !(protocol == PPP_LCP || protocol == PPP_LQR
#if PAP_SUPPORT
|| protocol == PPP_PAP
#endif /* PAP_SUPPORT */
#if CHAP_SUPPORT
|| protocol == PPP_CHAP
#endif /* CHAP_SUPPORT */
#if EAP_SUPPORT
|| protocol == PPP_EAP
#endif /* EAP_SUPPORT */
)) {
dbglog("discarding proto 0x%x in phase %d",
protocol, phase);
return;
}
/* FIXME: should we write protent to do that ? */
switch(protocol) {
case PPP_VJC_COMP: /* VJ compressed TCP */
#if PPPOS_SUPPORT && VJ_SUPPORT
PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
/*
* Clip off the VJ header and prepend the rebuilt TCP/IP header and
* pass the result to IP.
*/
if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
/* Something's wrong so drop it. */
PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
#else /* PPPOS_SUPPORT && VJ_SUPPORT */
/* No handler for this protocol so drop the packet. */
PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d\n", pd, nb->len));
#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
break;
case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
#if PPPOS_SUPPORT && VJ_SUPPORT
PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
/*
* Process the TCP/IP header for VJ header compression and then pass
* the packet to IP.
*/
if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
/* Something's wrong so drop it. */
PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
#else /* PPPOS_SUPPORT && VJ_SUPPORT */
/* No handler for this protocol so drop the packet. */
PPPDEBUG(LOG_INFO,
("pppInput[%d]: drop VJ UnComp in %d\n",
pd, nb->len));
#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
break;
case PPP_IP: /* Internet Protocol */
PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
if (pppControl[pd].netif.input) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
break;
default: {
int i;
struct protent *protp;
/*
* Upcall the proper protocol input routine.
*/
for (i = 0; (protp = protocols[i]) != NULL; ++i) {
if (protp->protocol == protocol && protp->enabled_flag) {
nb = pppSingleBuf(nb);
(*protp->input)(pd, nb->payload, nb->len);
goto out;
}
#if 0 /* UNUSED
*
* This is actually a (hacked?) way for the PPP kernel implementation to pass a
* data packet to the PPP daemon. The PPP daemon normally only do signaling
* (LCP, PAP, CHAP, IPCP, ...) and does not handle any data packet at all.
*
* This is only used by CCP, which we cannot support until we have a CCP data
* implementation.
*/
if (protocol == (protp->protocol & ~0x8000) && protp->enabled_flag
&& protp->datainput != NULL) {
(*protp->datainput)(pd, nb->payload, nb->len);
goto out;
}
#endif /* UNUSED */
}
if (debug) {
#if PPP_PROTOCOLNAME
const char *pname = protocol_name(protocol);
if (pname != NULL)
warn("Unsupported protocol '%s' (0x%x) received", pname, protocol);
else
#endif /* PPP_PROTOCOLNAME */
warn("Unsupported protocol 0x%x received", protocol);
}
if (pbuf_header(nb, sizeof(protocol))) {
LWIP_ASSERT("pbuf_header failed\n", 0);
goto drop;
}
lcp_sprotrej(pd, nb->payload, nb->len);
}
break;
}
drop:
LINK_STATS_INC(link.drop);
snmp_inc_ifindiscards(&pppControl[pd].netif);
out:
pbuf_free(nb);
return;
#if 0
/*
* Toss all non-LCP packets unless LCP is OPEN.
* Until we get past the authentication phase, toss all packets
* except LCP, LQR and authentication packets.
*/
if((lcp_phase[pd] <= PHASE_AUTHENTICATE) && (protocol != PPP_LCP)) {
if(!((protocol == PPP_LQR) || (protocol == PPP_PAP) || (protocol == PPP_CHAP)) ||
(lcp_phase[pd] != PHASE_AUTHENTICATE)) {
PPPDEBUG(LOG_INFO, ("pppInput: discarding proto 0x%"X16_F" in phase %d\n", protocol, lcp_phase[pd]));
goto drop;
}
}
switch(protocol) {
case PPP_VJC_COMP: /* VJ compressed TCP */
#if PPPOS_SUPPORT && VJ_SUPPORT
PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
/*
* Clip off the VJ header and prepend the rebuilt TCP/IP header and
* pass the result to IP.
*/
if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
/* Something's wrong so drop it. */
PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
#else /* PPPOS_SUPPORT && VJ_SUPPORT */
/* No handler for this protocol so drop the packet. */
PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d:%s\n", pd, nb->len, nb->payload));
#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
break;
case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
#if PPPOS_SUPPORT && VJ_SUPPORT
PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
/*
* Process the TCP/IP header for VJ header compression and then pass
* the packet to IP.
*/
if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
/* Something's wrong so drop it. */
PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
#else /* PPPOS_SUPPORT && VJ_SUPPORT */
/* No handler for this protocol so drop the packet. */
PPPDEBUG(LOG_INFO,
("pppInput[%d]: drop VJ UnComp in %d:.*H\n",
pd, nb->len, LWIP_MIN(nb->len * 2, 40), nb->payload));
#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
break;
case PPP_IP: /* Internet Protocol */
PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
if (pppControl[pd].netif.input) {
pppControl[pd].netif.input(nb, &pppControl[pd].netif);
return;
}
break;
default: {
struct protent *protp;
int i;
/*
* Upcall the proper protocol input routine.
*/
for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
if (protp->protocol == protocol && protp->enabled_flag) {
PPPDEBUG(LOG_INFO, ("pppInput[%d]: %s len=%d\n", pd, protp->name, nb->len));
nb = pppSingleBuf(nb);
(*protp->input)(pd, nb->payload, nb->len);
PPPDEBUG(LOG_DETAIL, ("pppInput[%d]: packet processed\n", pd));
goto out;
}
}
/* No handler for this protocol so reject the packet. */
PPPDEBUG(LOG_INFO, ("pppInput[%d]: rejecting unsupported proto 0x%"X16_F" len=%d\n", pd, protocol, nb->len));
if (pbuf_header(nb, sizeof(protocol))) {
LWIP_ASSERT("pbuf_header failed\n", 0);
goto drop;
}
#if BYTE_ORDER == LITTLE_ENDIAN
protocol = htons(protocol);
#endif /* BYTE_ORDER == LITTLE_ENDIAN */
SMEMCPY(nb->payload, &protocol, sizeof(protocol));
lcp_sprotrej(pd, nb->payload, nb->len);
}
break;
}
#endif
}
/***********************************/
/*** PUBLIC FUNCTION DEFINITIONS ***/
/***********************************/
/* Initialize the PPP subsystem. */
int ppp_init(void) {
int i;
struct protent *protp;
debug = 1;
ifunit = 1; /* FIXME: remove ifunit */
/*
openlog("LWIP-PPP", LOG_PID | LOG_NDELAY, LOG_DAEMON);
setlogmask(LOG_UPTO(LOG_DEBUG));
syslog(LOG_DEBUG, "hello, this is gradator lwIP PPP!");
*/
memset(&ppp_settings, 0, sizeof(ppp_settings));
ppp_settings.usepeerdns = 1;
pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
/*
* Initialize magic number generator now so that protocols may
* use magic numbers in initialization.
*/
magic_init();
/*
* Initialize each protocol.
*/
for (i = 0; (protp = protocols[i]) != NULL; ++i)
(*protp->init)(0);
return 0;
}
void pppSetAuth(enum pppAuthType authType, const char *user, const char *passwd) {
/* FIXME: the following may look stupid, but this is just an easy way
* to check different auth by changing compile time option
*/
#if PAP_SUPPORT
ppp_settings.refuse_pap = 0;
#endif /* PAP_SUPPORT */
#if CHAP_SUPPORT
#if PAP_SUPPORT
ppp_settings.refuse_pap = 1;
#endif /* PAP_SUPPORT */
ppp_settings.refuse_chap = 0;
#endif /* CHAP_SUPPORT */
#if MSCHAP_SUPPORT
#if PAP_SUPPORT
ppp_settings.refuse_pap = 1;
#endif /* PAP_SUPPORT */
ppp_settings.refuse_chap = 1;
ppp_settings.refuse_mschap = 1;
ppp_settings.refuse_mschap_v2 = 0;
#endif /* MSCHAP_SUPPORT */
#if EAP_SUPPORT
#if PAP_SUPPORT
ppp_settings.refuse_pap = 1;
#endif/* PAP_SUPPORT */
#if CHAP_SUPPORT
ppp_settings.refuse_chap = 1;
#if MSCHAP_SUPPORT
ppp_settings.refuse_mschap = 1;
ppp_settings.refuse_mschap_v2 = 1;
#endif /* MSCHAP_SUPPORT */
#endif /* CHAP_SUPPORT */
ppp_settings.refuse_eap = 0;
#endif /* EAP_SUPPORT */
/* FIXME: re-enable that */
#if 0
switch(authType) {
case PPPAUTHTYPE_NONE:
default:
#ifdef LWIP_PPP_STRICT_PAP_REJECT
ppp_settings.refuse_pap = 1;
#else /* LWIP_PPP_STRICT_PAP_REJECT */
/* some providers request pap and accept an empty login/pw */
ppp_settings.refuse_pap = 0;
#endif /* LWIP_PPP_STRICT_PAP_REJECT */
ppp_settings.refuse_chap = 1;
break;
case PPPAUTHTYPE_ANY:
/* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
* RFC 1994 says:
*
* In practice, within or associated with each PPP server, there is a
* database which associates "user" names with authentication
* information ("secrets"). It is not anticipated that a particular
* named user would be authenticated by multiple methods. This would
* make the user vulnerable to attacks which negotiate the least secure
* method from among a set (such as PAP rather than CHAP). If the same
* secret was used, PAP would reveal the secret to be used later with
* CHAP.
*
* Instead, for each user name there should be an indication of exactly
* one method used to authenticate that user name. If a user needs to
* make use of different authentication methods under different
* circumstances, then distinct user names SHOULD be employed, each of
* which identifies exactly one authentication method.
*
*/
ppp_settings.refuse_pap = 0;
ppp_settings.refuse_chap = 0;
break;
case PPPAUTHTYPE_PAP:
ppp_settings.refuse_pap = 0;
ppp_settings.refuse_chap = 1;
break;
case PPPAUTHTYPE_CHAP:
ppp_settings.refuse_pap = 1;
ppp_settings.refuse_chap = 0;
break;
}
#endif
if(user) {
strncpy(ppp_settings.user, user, sizeof(ppp_settings.user)-1);
ppp_settings.user[sizeof(ppp_settings.user)-1] = '\0';
} else {
ppp_settings.user[0] = '\0';
}
if(passwd) {
strncpy(ppp_settings.passwd, passwd, sizeof(ppp_settings.passwd)-1);
ppp_settings.passwd[sizeof(ppp_settings.passwd)-1] = '\0';
} else {
ppp_settings.passwd[0] = '\0';
}
}
#if PPPOE_SUPPORT
static void pppOverEthernetLinkStatusCB(int pd, int up);
int pppOverEthernetOpen(struct netif *ethif, const char *service_name, const char *concentrator_name,
pppLinkStatusCB_fn linkStatusCB, void *linkStatusCtx)
{
PPPControl *pc;
int pd;
LWIP_UNUSED_ARG(service_name);
LWIP_UNUSED_ARG(concentrator_name);
if (linkStatusCB == NULL) {
/* PPP is single-threaded: without a callback,
* there is no way to know when the link is up. */
return PPPERR_PARAM;
}
/* Find a free PPP session descriptor. Critical region? */
for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
if (pd >= NUM_PPP) {
pd = PPPERR_OPEN;
} else {
pc = &pppControl[pd];
memset(pc, 0, sizeof(PPPControl));
pc->openFlag = 1;
pc->ethif = ethif;
pc->linkStatusCB = linkStatusCB;
pc->linkStatusCtx = linkStatusCtx;
lcp_wantoptions[pd].mru = PPPOE_MAXMTU;
lcp_wantoptions[pd].neg_asyncmap = 0;
lcp_wantoptions[pd].neg_pcompression = 0;
lcp_wantoptions[pd].neg_accompression = 0;
lcp_allowoptions[pd].mru = PPPOE_MAXMTU;
lcp_allowoptions[pd].neg_asyncmap = 0;
lcp_allowoptions[pd].neg_pcompression = 0;
lcp_allowoptions[pd].neg_accompression = 0;
if(pppoe_create(ethif, pd, pppOverEthernetLinkStatusCB, &pc->pppoe_sc) != ERR_OK) {
pc->openFlag = 0;
return PPPERR_OPEN;
}
pppoe_connect(pc->pppoe_sc);
}
return pd;
}
struct pbuf * pppSingleBuf(struct pbuf *p) {
struct pbuf *q, *b;
u_char *pl;
if(p->tot_len == p->len) {
return p;
}
q = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM);
if(!q) {
PPPDEBUG(LOG_ERR,
("pppSingleBuf: unable to alloc new buf (%d)\n", p->tot_len));
return p; /* live dangerously */
}
for(b = p, pl = q->payload; b != NULL; b = b->next) {
MEMCPY(pl, b->payload, b->len);
pl += b->len;
}
pbuf_free(p);
return q;
}
/* FIXME: maybe we should pass in two arguments pppInputHeader and payload
* this is totally stupid to make room for it and then modify the packet directly
* or it is used in output ? have to find out...
*/
void pppInProcOverEthernet(int pd, struct pbuf *pb) {
struct pppInputHeader *pih;
u16_t inProtocol;
if(pb->len < sizeof(inProtocol)) {
PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: too small for protocol field\n"));
goto drop;
}
inProtocol = (((u8_t *)pb->payload)[0] << 8) | ((u8_t*)pb->payload)[1];
/* make room for pppInputHeader - should not fail */
if (pbuf_header(pb, sizeof(*pih) - sizeof(inProtocol)) != 0) {
PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: could not allocate room for header\n"));
goto drop;
}
pih = pb->payload;
pih->unit = pd;
pih->proto = inProtocol;
/* Dispatch the packet thereby consuming it. */
ppp_input(pb);
return;
drop:
LINK_STATS_INC(link.drop);
snmp_inc_ifindiscards(&pppControl[pd].netif);
pbuf_free(pb);
return;
}
void pppOverEthernetInitFailed(int pd) {
PPPControl* pc;
/* FIXME: re-enable that
* pppHup(pd);
* pppStop(pd);
*/
pc = &pppControl[pd];
pppoe_destroy(&pc->netif);
pc->openFlag = 0;
if(pc->linkStatusCB) {
pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
}
}
static void pppOverEthernetLinkStatusCB(int pd, int up) {
if(up) {
PPPDEBUG(LOG_INFO, ("pppOverEthernetLinkStatusCB: unit %d: Connecting\n", pd));
pppStart(pd);
} else {
pppOverEthernetInitFailed(pd);
}
}
#endif
#if PPPOE_SUPPORT
static err_t pppifOutputOverEthernet(int pd, struct pbuf *p) {
PPPControl *pc = &pppControl[pd];
struct pbuf *pb;
u_short protocol = PPP_IP;
int i=0;
u16_t tot_len;
/* @todo: try to use pbuf_header() here! */
pb = pbuf_alloc(PBUF_LINK, PPPOE_HDRLEN + sizeof(protocol), PBUF_RAM);
if(!pb) {
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.proterr);
snmp_inc_ifoutdiscards(&pc->netif);
return ERR_MEM;
}
pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
pc->lastXMit = sys_jiffies();
if (!pc->pcomp || protocol > 0xFF) {
*((u_char*)pb->payload + i++) = (protocol >> 8) & 0xFF;
}
*((u_char*)pb->payload + i) = protocol & 0xFF;
pbuf_chain(pb, p);
tot_len = pb->tot_len;
if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
LINK_STATS_INC(link.err);
snmp_inc_ifoutdiscards(&pc->netif);
return PPPERR_DEVICE;
}
snmp_add_ifoutoctets(&pc->netif, tot_len);
snmp_inc_ifoutucastpkts(&pc->netif);
LINK_STATS_INC(link.xmit);
return ERR_OK;
}
#endif /* PPPOE_SUPPORT */
/* Send a packet on the given connection.
*
* This is the low level function that send the PPP packet.
*/
static err_t ppp_low_level_output(struct netif *netif, struct pbuf *pb, ip_addr_t *ipaddr) {
int pd = (int)(size_t)netif->state;
PPPControl *pc = &pppControl[pd];
#if PPPOS_SUPPORT
u_short protocol = PPP_IP;
u_int fcsOut = PPP_INITFCS;
struct pbuf *headMB = NULL, *tailMB = NULL, *p;
u_char c;
#endif /* PPPOS_SUPPORT */
LWIP_UNUSED_ARG(ipaddr);
/* Validate parameters. */
/* We let any protocol value go through - it can't hurt us
* and the peer will just drop it if it's not accepting it. */
if (pd < 0 || pd >= NUM_PPP || !pc->openFlag || !pb) {
PPPDEBUG(LOG_WARNING, ("ppp_low_level_output[%d]: bad parms prot=%d pb=%p\n",
pd, PPP_IP, (void*)pb));
LINK_STATS_INC(link.opterr);
LINK_STATS_INC(link.drop);
snmp_inc_ifoutdiscards(netif);
return ERR_ARG;
}
/* Check that the link is up. */
if (phase == PHASE_DEAD) {
PPPDEBUG(LOG_ERR, ("ppp_low_level_output[%d]: link not up\n", pd));
LINK_STATS_INC(link.rterr);
LINK_STATS_INC(link.drop);
snmp_inc_ifoutdiscards(netif);
return ERR_RTE;
}
#if PPPOE_SUPPORT
if(pc->ethif) {
return pppifOutputOverEthernet(pd, pb);
}
#endif /* PPPOE_SUPPORT */
#if PPPOS_SUPPORT
/* Grab an output buffer. */
headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
if (headMB == NULL) {
PPPDEBUG(LOG_WARNING, ("ppp_low_level_output[%d]: first alloc fail\n", pd));
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.drop);
snmp_inc_ifoutdiscards(netif);
return ERR_MEM;
}
#if VJ_SUPPORT
/*
* Attempt Van Jacobson header compression if VJ is configured and
* this is an IP packet.
*/
if (protocol == PPP_IP && pc->vjEnabled) {
switch (vj_compress_tcp(&pc->vjComp, pb)) {
case TYPE_IP:
/* No change...
protocol = PPP_IP_PROTOCOL; */
break;
case TYPE_COMPRESSED_TCP:
protocol = PPP_VJC_COMP;
break;
case TYPE_UNCOMPRESSED_TCP:
protocol = PPP_VJC_UNCOMP;
break;
default:
PPPDEBUG(LOG_WARNING, ("ppp_low_level_output[%d]: bad IP packet\n", pd));
LINK_STATS_INC(link.proterr);
LINK_STATS_INC(link.drop);
snmp_inc_ifoutdiscards(netif);
pbuf_free(headMB);
return ERR_VAL;
}
}
#endif /* VJ_SUPPORT */
tailMB = headMB;
/* Build the PPP header. */
if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
}
pc->lastXMit = sys_jiffies();
if (!pc->accomp) {
fcsOut = PPP_FCS(fcsOut, PPP_ALLSTATIONS);
tailMB = pppAppend(PPP_ALLSTATIONS, tailMB, &pc->outACCM);
fcsOut = PPP_FCS(fcsOut, PPP_UI);
tailMB = pppAppend(PPP_UI, tailMB, &pc->outACCM);
}
if (!pc->pcomp || protocol > 0xFF) {
c = (protocol >> 8) & 0xFF;
fcsOut = PPP_FCS(fcsOut, c);
tailMB = pppAppend(c, tailMB, &pc->outACCM);
}
c = protocol & 0xFF;
fcsOut = PPP_FCS(fcsOut, c);
tailMB = pppAppend(c, tailMB, &pc->outACCM);
/* Load packet. */
for(p = pb; p; p = p->next) {
int n;
u_char *sPtr;
sPtr = (u_char*)p->payload;
n = p->len;
while (n-- > 0) {
c = *sPtr++;
/* Update FCS before checking for special characters. */
fcsOut = PPP_FCS(fcsOut, c);
/* Copy to output buffer escaping special characters. */
tailMB = pppAppend(c, tailMB, &pc->outACCM);
}
}
/* Add FCS and trailing flag. */
c = ~fcsOut & 0xFF;
tailMB = pppAppend(c, tailMB, &pc->outACCM);
c = (~fcsOut >> 8) & 0xFF;
tailMB = pppAppend(c, tailMB, &pc->outACCM);
tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
/* If we failed to complete the packet, throw it away. */
if (!tailMB) {
PPPDEBUG(LOG_WARNING,
("ppp_low_level_output[%d]: Alloc err - dropping proto=%d\n",
pd, protocol));
pbuf_free(headMB);
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.drop);
snmp_inc_ifoutdiscards(netif);
return ERR_MEM;
}
/* Send it. */
PPPDEBUG(LOG_INFO, ("ppp_low_level_output[%d]: proto=0x%"X16_F"\n", pd, protocol));
nPut(pc, headMB);
#endif /* PPPOS_SUPPORT */
return ERR_OK;
}
/*
* Return the Maximum Transmission Unit for the given PPP connection.
*/
u_short pppMTU(int pd) {
PPPControl *pc = &pppControl[pd];
u_short st;
/* Validate parameters. */
if (pd < 0 || pd >= NUM_PPP || !pc->openFlag) {
st = 0;
} else {
st = pc->mtu;
}
return st;
}
#if PPPOE_SUPPORT
int pppWriteOverEthernet(int pd, const u_char *s, int n) {
PPPControl *pc = &pppControl[pd];
struct pbuf *pb;
/* skip address & flags */
s += 2;
n -= 2;
LWIP_ASSERT("PPPOE_HDRLEN + n <= 0xffff", PPPOE_HDRLEN + n <= 0xffff);
pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HDRLEN + n), PBUF_RAM);
if(!pb) {
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.proterr);
snmp_inc_ifoutdiscards(&pc->netif);
return PPPERR_ALLOC;
}
pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
pc->lastXMit = sys_jiffies();
MEMCPY(pb->payload, s, n);
if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
LINK_STATS_INC(link.err);
snmp_inc_ifoutdiscards(&pc->netif);
return PPPERR_DEVICE;
}
snmp_add_ifoutoctets(&pc->netif, (u16_t)n);
snmp_inc_ifoutucastpkts(&pc->netif);
LINK_STATS_INC(link.xmit);
return PPPERR_NONE;
}
#endif /* PPPOE_SUPPORT */
/*
* Write n characters to a ppp link.
* RETURN: >= 0 Number of characters written
* -1 Failed to write to device
*/
int ppp_output(int pd, const u_char *s, int n) {
PPPControl *pc = &pppControl[pd];
#if PPPOS_SUPPORT
u_char c;
u_int fcsOut;
struct pbuf *headMB, *tailMB;
#endif /* PPPOS_SUPPORT */
#if PPPOE_SUPPORT
if(pc->ethif) {
return pppWriteOverEthernet(pd, s, n);
}
#endif /* PPPOE_SUPPORT */
#if PPPOS_SUPPORT
headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
if (headMB == NULL) {
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.proterr);
snmp_inc_ifoutdiscards(&pc->netif);
return PPPERR_ALLOC;
}
tailMB = headMB;
/* If the link has been idle, we'll send a fresh flag character to
* flush any noise. */
if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
}
pc->lastXMit = sys_jiffies();
fcsOut = PPP_INITFCS;
/* Load output buffer. */
while (n-- > 0) {
c = *s++;
/* Update FCS before checking for special characters. */
fcsOut = PPP_FCS(fcsOut, c);
/* Copy to output buffer escaping special characters. */
tailMB = pppAppend(c, tailMB, &pc->outACCM);
}
/* Add FCS and trailing flag. */
c = ~fcsOut & 0xFF;
tailMB = pppAppend(c, tailMB, &pc->outACCM);
c = (~fcsOut >> 8) & 0xFF;
tailMB = pppAppend(c, tailMB, &pc->outACCM);
tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
/* If we failed to complete the packet, throw it away.
* Otherwise send it. */
if (!tailMB) {
PPPDEBUG(LOG_WARNING,
("ppp_output[%d]: Alloc err - dropping pbuf len=%d\n", pd, headMB->len));
/*"ppp_output[%d]: Alloc err - dropping %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
pbuf_free(headMB);
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.proterr);
snmp_inc_ifoutdiscards(&pc->netif);
return PPPERR_ALLOC;
}
PPPDEBUG(LOG_INFO, ("ppp_output[%d]: len=%d\n", pd, headMB->len));
/* "ppp_output[%d]: %d:%.*H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
nPut(pc, headMB);
#endif /* PPPOS_SUPPORT */
return PPPERR_NONE;
}
/* FIXME: rename all output() to pppWrite() */
/********************************************************************
*
* output - Output PPP packet.
*/
/*
void output (int unit, unsigned char *p, int len)
{
pppWrite(unit, p, len);
}
*/
/************************************************************************
* Functions called by various PPP subsystems to configure
* the PPP interface or change the PPP phase.
*/
/*
* new_phase - signal the start of a new phase of pppd's operation.
*/
void new_phase(int p) {
phase = p;
#if PPP_NOTIFY
/* The one willing notify support should add here the code to be notified of phase changes */
#endif /* PPP_NOTIFY */
}
/*
* ppp_send_config - configure the transmit-side characteristics of
* the ppp interface.
*/
int ppp_send_config(int unit, int mtu, u_int32_t accm, int pcomp, int accomp) {
PPPControl *pc = &pppControl[unit];
int i;
pc->mtu = mtu;
pc->pcomp = pcomp;
pc->accomp = accomp;
/* Load the ACCM bits for the 32 control codes. */
for (i = 0; i < 32/8; i++) {
pc->outACCM[i] = (u_char)((accm >> (8 * i)) & 0xFF);
}
PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]: outACCM=%X %X %X %X\n",
unit,
pc->outACCM[0], pc->outACCM[1], pc->outACCM[2], pc->outACCM[3]));
return 0;
}
/*
* ppp_recv_config - configure the receive-side characteristics of
* the ppp interface.
*/
int ppp_recv_config(int unit, int mru, u_int32_t accm, int pcomp, int accomp) {
PPPControl *pc = &pppControl[unit];
int i;
SYS_ARCH_DECL_PROTECT(lev);
LWIP_UNUSED_ARG(accomp);
LWIP_UNUSED_ARG(pcomp);
LWIP_UNUSED_ARG(mru);
/* Load the ACCM bits for the 32 control codes. */
SYS_ARCH_PROTECT(lev);
for (i = 0; i < 32 / 8; i++) {
/* @todo: does this work? ext_accm has been modified from pppd! */
pc->rx.inACCM[i] = (u_char)(accm >> (i * 8));
}
SYS_ARCH_UNPROTECT(lev);
PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]: inACCM=%X %X %X %X\n",
unit,
pc->rx.inACCM[0], pc->rx.inACCM[1], pc->rx.inACCM[2], pc->rx.inACCM[3]));
return 0;
}
/*
* sifaddr - Config the interface IP addresses and netmask.
*/
int sifaddr (int unit, u_int32_t our_adr, u_int32_t his_adr,
u_int32_t net_mask) {
PPPControl *pc = &pppControl[unit];
int st = 1;
if (unit < 0 || unit >= NUM_PPP || !pc->openFlag) {
st = 0;
PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", unit));
} else {
SMEMCPY(&pc->addrs.our_ipaddr, &our_adr, sizeof(our_adr));
SMEMCPY(&pc->addrs.his_ipaddr, &his_adr, sizeof(his_adr));
SMEMCPY(&pc->addrs.netmask, &net_mask, sizeof(net_mask));
/* FIXME: re-enable DNS
* SMEMCPY(&pc->addrs.dns1, &ns1, sizeof(ns1));
* SMEMCPY(&pc->addrs.dns2, &ns2, sizeof(ns2));
*/
}
return st;
}
/********************************************************************
*
* cifaddr - Clear the interface IP addresses, and delete routes
* through the interface if possible.
*/
int cifaddr (int unit, u_int32_t our_adr, u_int32_t his_adr) {
/* FIXME: do the code which clear a IP on a PPP interface */
return 0;
}
/*
* sifup - Config the interface up and enable IP packets to pass.
*/
int sifup(int u)
{
PPPControl *pc = &pppControl[u];
int st = 1;
if (u < 0 || u >= NUM_PPP || !pc->openFlag) {
st = 0;
PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", u));
} else {
netif_remove(&pc->netif);
if (netif_add(&pc->netif, &pc->addrs.our_ipaddr, &pc->addrs.netmask,
&pc->addrs.his_ipaddr, (void *)(size_t)u, ppp_netif_init_cb, ip_input)) {
netif_set_up(&pc->netif);
pc->if_up = 1;
pc->errCode = PPPERR_NONE;
PPPDEBUG(LOG_DEBUG, ("sifup: unit %d: linkStatusCB=%p errCode=%d\n", u, pc->linkStatusCB, pc->errCode));
if (pc->linkStatusCB) {
pc->linkStatusCB(pc->linkStatusCtx, pc->errCode, &pc->addrs);
}
} else {
st = 0;
PPPDEBUG(LOG_ERR, ("sifup[%d]: netif_add failed\n", u));
}
}
return st;
}
/*
* ppp_netif_init_cb - netif init callback
*/
static err_t ppp_netif_init_cb(struct netif *netif) {
netif->name[0] = 'p';
netif->name[1] = 'p';
netif->output = ppp_low_level_output;
netif->mtu = pppMTU((int)(size_t)netif->state);
netif->flags = NETIF_FLAG_POINTTOPOINT | NETIF_FLAG_LINK_UP;
#if LWIP_NETIF_HOSTNAME
/* @todo: Initialize interface hostname */
/* netif_set_hostname(netif, "lwip"); */
#endif /* LWIP_NETIF_HOSTNAME */
return ERR_OK;
}
/********************************************************************
*
* sifdown - Disable the indicated protocol and config the interface
* down if there are no remaining protocols.
*/
int sifdown (int u) {
/* FIXME: do the code which shutdown a PPP interface */
return 1;
}
/*
* sifnpmode - Set the mode for handling packets for a given NP.
*/
int sifnpmode(int u, int proto, enum NPmode mode) {
LWIP_UNUSED_ARG(u);
LWIP_UNUSED_ARG(proto);
LWIP_UNUSED_ARG(mode);
return 0;
}
/*
* netif_set_mtu - set the MTU on the PPP network interface.
*/
void netif_set_mtu(int unit, int mtu) {
/* FIXME: set lwIP MTU */
}
/*
* netif_get_mtu - get PPP interface MTU
*/
int netif_get_mtu(int mtu) {
/* FIXME: get lwIP MTU */
return 1492;
}
/********************************************************************
*
* sifdefaultroute - assign a default route through the address given.
*
* If the global default_rt_repl_rest flag is set, then this function
* already replaced the original system defaultroute with some other
* route and it should just replace the current defaultroute with
* another one, without saving the current route. Use: demand mode,
* when pppd sets first a defaultroute it it's temporary ppp0 addresses
* and then changes the temporary addresses to the addresses for the real
* ppp connection when it has come up.
*/
int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway, bool replace) {
/* FIXME: do the code which add the default route */
return 0;
}
/********************************************************************
*
* cifdefaultroute - delete a default route through the address given.
*/
int cifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway) {
/* FIXME: do the code which remove the default route */
return 0;
}
/********************************************************************
*
* sifproxyarp - Make a proxy ARP entry for the peer.
*/
int sifproxyarp (int unit, u_int32_t his_adr) {
/* FIXME: do we really need that in IPCP ? */
return 0;
}
/********************************************************************
*
* cifproxyarp - Delete the proxy ARP entry for the peer.
*/
int cifproxyarp (int unit, u_int32_t his_adr) {
/* FIXME: do we really need that in IPCP ? */
return 0;
}
/********************************************************************
*
* sifvjcomp - config tcp header compression
*/
int sifvjcomp (int u, int vjcomp, int cidcomp, int maxcid) {
/* FIXME: add VJ support */
return 1;
}
/********************************************************************
*
* get_idle_time - return how long the link has been idle.
*/
int get_idle_time(int u, struct ppp_idle *ip) {
/* FIXME: add idle time support */
return 1;
}
/********************************************************************
*
* get_loop_output - get outgoing packets from the ppp device,
* and detect when we want to bring the real link up.
* Return value is 1 if we need to bring up the link, 0 otherwise.
*/
int get_loop_output(void) {
/* FIXME: necessary for "demand", do we really need to support on-demand ? */
return 0;
}
/********************************************************************
*
* Return user specified netmask, modified by any mask we might determine
* for address `addr' (in network byte order).
* Here we scan through the system's list of interfaces, looking for
* any non-point-to-point interfaces which might appear to be on the same
* network as `addr'. If we find any, we OR in their netmask to the
* user-specified netmask.
*/
u_int32_t GetMask (u_int32_t addr) {
/* FIXME: do we really need that in IPCP ? */
return 0;
}
#if PPP_PROTOCOLNAME
/* List of protocol names, to make our messages a little more informative. */
struct protocol_list {
u_short proto;
const char *name;
} protocol_list[] = {
{ 0x21, "IP" },
{ 0x23, "OSI Network Layer" },
{ 0x25, "Xerox NS IDP" },
{ 0x27, "DECnet Phase IV" },
{ 0x29, "Appletalk" },
{ 0x2b, "Novell IPX" },
{ 0x2d, "VJ compressed TCP/IP" },
{ 0x2f, "VJ uncompressed TCP/IP" },
{ 0x31, "Bridging PDU" },
{ 0x33, "Stream Protocol ST-II" },
{ 0x35, "Banyan Vines" },
{ 0x39, "AppleTalk EDDP" },
{ 0x3b, "AppleTalk SmartBuffered" },
{ 0x3d, "Multi-Link" },
{ 0x3f, "NETBIOS Framing" },
{ 0x41, "Cisco Systems" },
{ 0x43, "Ascom Timeplex" },
{ 0x45, "Fujitsu Link Backup and Load Balancing (LBLB)" },
{ 0x47, "DCA Remote Lan" },
{ 0x49, "Serial Data Transport Protocol (PPP-SDTP)" },
{ 0x4b, "SNA over 802.2" },
{ 0x4d, "SNA" },
{ 0x4f, "IP6 Header Compression" },
{ 0x51, "KNX Bridging Data" },
{ 0x53, "Encryption" },
{ 0x55, "Individual Link Encryption" },
{ 0x57, "IPv6" },
{ 0x59, "PPP Muxing" },
{ 0x5b, "Vendor-Specific Network Protocol" },
{ 0x61, "RTP IPHC Full Header" },
{ 0x63, "RTP IPHC Compressed TCP" },
{ 0x65, "RTP IPHC Compressed non-TCP" },
{ 0x67, "RTP IPHC Compressed UDP 8" },
{ 0x69, "RTP IPHC Compressed RTP 8" },
{ 0x6f, "Stampede Bridging" },
{ 0x73, "MP+" },
{ 0xc1, "NTCITS IPI" },
{ 0xfb, "single-link compression" },
{ 0xfd, "Compressed Datagram" },
{ 0x0201, "802.1d Hello Packets" },
{ 0x0203, "IBM Source Routing BPDU" },
{ 0x0205, "DEC LANBridge100 Spanning Tree" },
{ 0x0207, "Cisco Discovery Protocol" },
{ 0x0209, "Netcs Twin Routing" },
{ 0x020b, "STP - Scheduled Transfer Protocol" },
{ 0x020d, "EDP - Extreme Discovery Protocol" },
{ 0x0211, "Optical Supervisory Channel Protocol" },
{ 0x0213, "Optical Supervisory Channel Protocol" },
{ 0x0231, "Luxcom" },
{ 0x0233, "Sigma Network Systems" },
{ 0x0235, "Apple Client Server Protocol" },
{ 0x0281, "MPLS Unicast" },
{ 0x0283, "MPLS Multicast" },
{ 0x0285, "IEEE p1284.4 standard - data packets" },
{ 0x0287, "ETSI TETRA Network Protocol Type 1" },
{ 0x0289, "Multichannel Flow Treatment Protocol" },
{ 0x2063, "RTP IPHC Compressed TCP No Delta" },
{ 0x2065, "RTP IPHC Context State" },
{ 0x2067, "RTP IPHC Compressed UDP 16" },
{ 0x2069, "RTP IPHC Compressed RTP 16" },
{ 0x4001, "Cray Communications Control Protocol" },
{ 0x4003, "CDPD Mobile Network Registration Protocol" },
{ 0x4005, "Expand accelerator protocol" },
{ 0x4007, "ODSICP NCP" },
{ 0x4009, "DOCSIS DLL" },
{ 0x400B, "Cetacean Network Detection Protocol" },
{ 0x4021, "Stacker LZS" },
{ 0x4023, "RefTek Protocol" },
{ 0x4025, "Fibre Channel" },
{ 0x4027, "EMIT Protocols" },
{ 0x405b, "Vendor-Specific Protocol (VSP)" },
{ 0x8021, "Internet Protocol Control Protocol" },
{ 0x8023, "OSI Network Layer Control Protocol" },
{ 0x8025, "Xerox NS IDP Control Protocol" },
{ 0x8027, "DECnet Phase IV Control Protocol" },
{ 0x8029, "Appletalk Control Protocol" },
{ 0x802b, "Novell IPX Control Protocol" },
{ 0x8031, "Bridging NCP" },
{ 0x8033, "Stream Protocol Control Protocol" },
{ 0x8035, "Banyan Vines Control Protocol" },
{ 0x803d, "Multi-Link Control Protocol" },
{ 0x803f, "NETBIOS Framing Control Protocol" },
{ 0x8041, "Cisco Systems Control Protocol" },
{ 0x8043, "Ascom Timeplex" },
{ 0x8045, "Fujitsu LBLB Control Protocol" },
{ 0x8047, "DCA Remote Lan Network Control Protocol (RLNCP)" },
{ 0x8049, "Serial Data Control Protocol (PPP-SDCP)" },
{ 0x804b, "SNA over 802.2 Control Protocol" },
{ 0x804d, "SNA Control Protocol" },
{ 0x804f, "IP6 Header Compression Control Protocol" },
{ 0x8051, "KNX Bridging Control Protocol" },
{ 0x8053, "Encryption Control Protocol" },
{ 0x8055, "Individual Link Encryption Control Protocol" },
{ 0x8057, "IPv6 Control Protocol" },
{ 0x8059, "PPP Muxing Control Protocol" },
{ 0x805b, "Vendor-Specific Network Control Protocol (VSNCP)" },
{ 0x806f, "Stampede Bridging Control Protocol" },
{ 0x8073, "MP+ Control Protocol" },
{ 0x80c1, "NTCITS IPI Control Protocol" },
{ 0x80fb, "Single Link Compression Control Protocol" },
{ 0x80fd, "Compression Control Protocol" },
{ 0x8207, "Cisco Discovery Protocol Control" },
{ 0x8209, "Netcs Twin Routing" },
{ 0x820b, "STP - Control Protocol" },
{ 0x820d, "EDPCP - Extreme Discovery Protocol Ctrl Prtcl" },
{ 0x8235, "Apple Client Server Protocol Control" },
{ 0x8281, "MPLSCP" },
{ 0x8285, "IEEE p1284.4 standard - Protocol Control" },
{ 0x8287, "ETSI TETRA TNP1 Control Protocol" },
{ 0x8289, "Multichannel Flow Treatment Protocol" },
{ 0xc021, "Link Control Protocol" },
{ 0xc023, "Password Authentication Protocol" },
{ 0xc025, "Link Quality Report" },
{ 0xc027, "Shiva Password Authentication Protocol" },
{ 0xc029, "CallBack Control Protocol (CBCP)" },
{ 0xc02b, "BACP Bandwidth Allocation Control Protocol" },
{ 0xc02d, "BAP" },
{ 0xc05b, "Vendor-Specific Authentication Protocol (VSAP)" },
{ 0xc081, "Container Control Protocol" },
{ 0xc223, "Challenge Handshake Authentication Protocol" },
{ 0xc225, "RSA Authentication Protocol" },
{ 0xc227, "Extensible Authentication Protocol" },
{ 0xc229, "Mitsubishi Security Info Exch Ptcl (SIEP)" },
{ 0xc26f, "Stampede Bridging Authorization Protocol" },
{ 0xc281, "Proprietary Authentication Protocol" },
{ 0xc283, "Proprietary Authentication Protocol" },
{ 0xc481, "Proprietary Node ID Authentication Protocol" },
{ 0, NULL },
};
/*
* protocol_name - find a name for a PPP protocol.
*/
const char * protocol_name(int proto) {
struct protocol_list *lp;
for (lp = protocol_list; lp->proto != 0; ++lp)
if (proto == lp->proto)
return lp->name;
return NULL;
}
#endif /* PPP_PROTOCOLNAME */
#if PPP_STATS_SUPPORT
/* ---- Note on PPP Stats support ----
*
* The one willing link stats support should add the get_ppp_stats()
* to fetch statistics from lwIP.
*/
/*
* reset_link_stats - "reset" stats when link goes up.
*/
void reset_link_stats(int u) {
if (!get_ppp_stats(u, &old_link_stats))
return;
gettimeofday(&start_time, NULL);
}
/*
* update_link_stats - get stats at link termination.
*/
void update_link_stats(int u) {
struct timeval now;
char numbuf[32];
if (!get_ppp_stats(u, &link_stats)
|| gettimeofday(&now, NULL) < 0)
return;
link_connect_time = now.tv_sec - start_time.tv_sec;
link_stats_valid = 1;
link_stats.bytes_in -= old_link_stats.bytes_in;
link_stats.bytes_out -= old_link_stats.bytes_out;
link_stats.pkts_in -= old_link_stats.pkts_in;
link_stats.pkts_out -= old_link_stats.pkts_out;
}
void print_link_stats() {
/*
* Print connect time and statistics.
*/
if (link_stats_valid) {
int t = (link_connect_time + 5) / 6; /* 1/10ths of minutes */
info("Connect time %d.%d minutes.", t/10, t%10);
info("Sent %u bytes, received %u bytes.",
link_stats.bytes_out, link_stats.bytes_in);
link_stats_valid = 0;
}
}
#endif /* PPP_STATS_SUPPORT */
Reference in New Issue View Git Blame Copy Permalink