/*------------------------------------------------------------------------
* mkarp - allocate and fill in an ARP or RARP packet
*------------------------------------------------------------------------
*/
static
struct ep *
mkarp(int ifn, short type, short op, IPaddr spa, IPaddr tpa)
{
register struct arp *parp;
struct ep *pep;
pep = (struct ep *) getbuf(Net.netpool);
if ((int)pep == SYSERR)
return (struct ep *)SYSERR;
memcpy(pep->ep_dst, nif[ifn].ni_hwb.ha_addr, EP_ALEN);
pep->ep_order = ~0;
pep->ep_type = type;
parp = (struct arp *)pep->ep_data;
parp->ar_hwtype = hs2net(AR_HARDWARE);
parp->ar_prtype = hs2net(EPT_IP);
parp->ar_hwlen = EP_ALEN;
parp->ar_prlen = IP_ALEN;
parp->ar_op = hs2net(op);
memcpy(SHA(parp), nif[ifn].ni_hwa.ha_addr, EP_ALEN);
memcpy(SPA(parp), &spa, IP_ALEN);
memcpy(THA(parp), nif[ifn].ni_hwa.ha_addr, EP_ALEN);
memcpy(TPA(parp), &tpa, IP_ALEN);
return pep;
}
void
arp_print(netdissect_options *ndo,
const u_char *bp, u_int length, u_int caplen)
{
const struct arp_pkthdr *ap;
u_short pro, hrd, op, linkaddr;
ap = (const struct arp_pkthdr *)bp;
ND_TCHECK(*ap);
hrd = HRD(ap);
pro = PRO(ap);
op = OP(ap);
/* if its ATM then call the ATM ARP printer
for Frame-relay ARP most of the fields
are similar to Ethernet so overload the Ethernet Printer
and set the linkaddr type for linkaddr_string() accordingly */
switch(hrd) {
case ARPHRD_ATM2225:
atmarp_print(ndo, bp, length, caplen);
return;
case ARPHRD_FRELAY:
linkaddr = LINKADDR_FRELAY;
break;
default:
linkaddr = LINKADDR_ETHER;
break;
}
if (!ND_TTEST2(*ar_tpa(ap), PROTO_LEN(ap))) {
ND_PRINT((ndo, "[|ARP]"));
ND_DEFAULTPRINT((const u_char *)ap, length);
return;
}
if (!ndo->ndo_eflag) {
ND_PRINT((ndo, "ARP, "));
}
/* print hardware type/len and proto type/len */
if ((pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) ||
PROTO_LEN(ap) != 4 ||
HRD_LEN(ap) == 0 ||
ndo->ndo_vflag) {
ND_PRINT((ndo, "%s (len %u), %s (len %u)",
tok2str(arphrd_values, "Unknown Hardware (%u)", hrd),
HRD_LEN(ap),
tok2str(ethertype_values, "Unknown Protocol (0x%04x)", pro),
PROTO_LEN(ap)));
/* don't know know about the address formats */
if (!ndo->ndo_vflag) {
goto out;
}
}
/* print operation */
printf("%s%s ",
ndo->ndo_vflag ? ", " : "",
tok2str(arpop_values, "Unknown (%u)", op));
switch (op) {
case ARPOP_REQUEST:
ND_PRINT((ndo, "who-has %s", ipaddr_string(TPA(ap))));
if (memcmp((const char *)ezero, (const char *)THA(ap), HRD_LEN(ap)) != 0)
ND_PRINT((ndo, " (%s)",
linkaddr_string(THA(ap), linkaddr, HRD_LEN(ap))));
ND_PRINT((ndo, " tell %s", ipaddr_string(SPA(ap))));
break;
case ARPOP_REPLY:
ND_PRINT((ndo, "%s is-at %s",
ipaddr_string(SPA(ap)),
linkaddr_string(SHA(ap), linkaddr, HRD_LEN(ap))));
break;
case ARPOP_REVREQUEST:
ND_PRINT((ndo, "who-is %s tell %s",
linkaddr_string(THA(ap), linkaddr, HRD_LEN(ap)),
linkaddr_string(SHA(ap), linkaddr, HRD_LEN(ap))));
break;
case ARPOP_REVREPLY:
ND_PRINT((ndo, "%s at %s",
linkaddr_string(THA(ap), linkaddr, HRD_LEN(ap)),
ipaddr_string(TPA(ap))));
break;
case ARPOP_INVREQUEST:
ND_PRINT((ndo, "who-is %s tell %s",
linkaddr_string(THA(ap), linkaddr, HRD_LEN(ap)),
linkaddr_string(SHA(ap), linkaddr, HRD_LEN(ap))));
break;
case ARPOP_INVREPLY:
ND_PRINT((ndo,"%s at %s",
linkaddr_string(THA(ap), linkaddr, HRD_LEN(ap)),
ipaddr_string(TPA(ap))));
break;
default:
ND_DEFAULTPRINT((const u_char *)ap, caplen);
return;
}
out:
ND_PRINT((ndo, ", length %u", length));
return;
trunc:
ND_PRINT((ndo, "[|ARP]"));
}
void
arp_print(register const u_char *bp, u_int length, u_int caplen)
{
register const struct ether_arp *ap;
register const struct ether_header *eh;
register u_short pro, hrd, op;
ap = (struct ether_arp *)bp;
if ((u_char *)(ap + 1) > snapend) {
printf("[|arp]");
return;
}
if (length < sizeof(struct ether_arp)) {
(void)printf("truncated-arp");
default_print((u_char *)ap, length);
return;
}
pro = EXTRACT_16BITS(&ap->arp_pro);
hrd = EXTRACT_16BITS(&ap->arp_hrd);
op = EXTRACT_16BITS(&ap->arp_op);
if ((pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL)
|| ap->arp_hln != sizeof(SHA(ap))
|| ap->arp_pln != sizeof(SPA(ap))) {
(void)printf("arp-#%d for proto #%d (%d) hardware #%d (%d)",
op, pro, ap->arp_pln,
hrd, ap->arp_hln);
return;
}
if (pro == ETHERTYPE_TRAIL)
(void)printf("trailer-");
eh = (struct ether_header *)packetp;
switch (op) {
case ARPOP_REQUEST:
(void)printf("arp who-has %s", ipaddr_string(TPA(ap)));
if (memcmp((char *)ezero, (char *)THA(ap), 6) != 0)
(void)printf(" (%s)", etheraddr_string(THA(ap)));
(void)printf(" tell %s", ipaddr_string(SPA(ap)));
if (memcmp((char *)ESRC(eh), (char *)SHA(ap), 6) != 0)
(void)printf(" (%s)", etheraddr_string(SHA(ap)));
break;
case ARPOP_REPLY:
(void)printf("arp reply %s", ipaddr_string(SPA(ap)));
if (memcmp((char *)ESRC(eh), (char *)SHA(ap), 6) != 0)
(void)printf(" (%s)", etheraddr_string(SHA(ap)));
(void)printf(" is-at %s", etheraddr_string(SHA(ap)));
if (memcmp((char *)EDST(eh), (char *)THA(ap), 6) != 0)
(void)printf(" (%s)", etheraddr_string(THA(ap)));
break;
case REVARP_REQUEST:
(void)printf("rarp who-is %s tell %s",
etheraddr_string(THA(ap)),
etheraddr_string(SHA(ap)));
break;
case REVARP_REPLY:
(void)printf("rarp reply %s at %s",
etheraddr_string(THA(ap)),
ipaddr_string(TPA(ap)));
break;
default:
(void)printf("arp-#%d", op);
default_print((u_char *)ap, caplen);
return;
}
if (hrd != ARPHRD_ETHER)
printf(" hardware #%d", hrd);
}
#include "layout.h"
#include "../ergodox.h"
#define BASE 0
#define SYMB 1
#define MDIA 2
LAYOUT(
[BASE] = LAYER(
K(US_SC('=')), K(US_SC('1')), K(US_SC('2')), K(US_SC('3')), K(US_SC('4')), K(US_SC('5')), K(US_SC(L_C('-'))),
K(US_SC(DELETE)), K(US_SC('q')), K(US_SC('w')), K(US_SC('e')), K(US_SC('r')), K(US_SC('t')), L(GOTO, SYMB),
K(US_SC(BKSP)), K(US_SC('a')), K(US_SC('s')), K(US_SC('d')), K(US_SC('f')), K(US_SC('g')),
HTA(K(US_SC(L_SHIFT)), K(US_SC('('))), THA(K(US_SC('z')), K(US_SC(L_CTRL))), K(US_SC('x')), K(US_SC('c')), K(US_SC('v')), K(US_SC('b')), HTA(K(US_SC(L_C(L_S(L_A(L_G(0)))))), K(US_SC('['))),
HTA(L(VISIT, SYMB), K(US_SC('`'))), K(US_SC('\'')), K(US_SC(L_A(L_S(0)))), K(US_SC(LEFT)), K(US_SC(RIGHT)),
HTA(K(US_SC(L_ALT)), K(US_SC(APP))), K(US_SC(L_GUI)),
K(US_SC(HOME)),
K(US_SC(' ')), LEADER_KEY, K(US_SC(END)),
K(US_SC(R_C('='))), K(US_SC('6')), K(US_SC('7')), K(US_SC('8')), K(US_SC('9')), K(US_SC('0')), K(US_SC('-')),
L(GOTO, SYMB), K(US_SC('y')), K(US_SC('u')), K(US_SC('i')), K(US_SC('o')), K(US_SC('p')), K(US_SC('\\')),
K(US_SC('h')), THA(K(US_SC('j')), K(US_SC(R_ALT))), K(US_SC('k')), K(US_SC('l')), THA(K(US_SC(';')), L(VISIT, MDIA)), THA(K(US_SC('\'')), K(US_SC(R_GUI))),
HTA(K(US_SC(R_C(R_S(R_A(0))))), K(US_SC(']'))), K(US_SC('n')), K(US_SC('m')), K(US_SC(',')), K(US_SC('.')), THA(K(US_SC('/')), K(US_SC(R_CTRL))), HTA(K(US_SC(R_SHIFT)), K(US_SC(')'))),
K(US_SC(UP)), K(US_SC(DOWN)), K(US_SC('[')), K(US_SC(']')), HTA(L(VISIT, SYMB), K(US_SC('-'))),
K(US_SC(R_ALT)), HTA(K(US_SC(R_CTRL)), K(US_SC(ESC))),
K(US_SC(PG_UP)),
K(US_SC(PG_DN)), HTA(L(VISIT, SYMB), K(US_SC(TAB))), K(US_SC(ENTER))
),
[SYMB] = LAYER(
NO_ACTION, K(US_SC(F1)), K(US_SC(F2)), K(US_SC(F3)), K(US_SC(F4)), K(US_SC(F5)), NO_ACTION,
NO_ACTION, NO_ACTION, NO_ACTION, NO_ACTION, NO_ACTION, NO_ACTION, L(GOTO, BASE),
NO_ACTION, K(US_SC('1')), K(US_SC('2')), K(US_SC('3')), K(US_SC('4')), K(US_SC('5')),
NO_ACTION, K(US_SC('6')), K(US_SC('7')), K(US_SC('8')), K(US_SC('9')), K(US_SC('0')), NO_ACTION,
