diff options
Diffstat (limited to 'print-arp.c')
| -rw-r--r-- | print-arp.c | 89 |
1 files changed, 72 insertions, 17 deletions
diff --git a/print-arp.c b/print-arp.c index eff97c469074..96727faa31f3 100644 --- a/print-arp.c +++ b/print-arp.c @@ -78,7 +78,7 @@ struct arp_pkthdr { u_char ar_tha[]; /* target hardware address */ u_char ar_tpa[]; /* target protocol address */ #endif -#define ar_sha(ap) (((const u_char *)((ap)+1))+0) +#define ar_sha(ap) (((const u_char *)((ap)+1))+ 0) #define ar_spa(ap) (((const u_char *)((ap)+1))+ (ap)->ar_hln) #define ar_tha(ap) (((const u_char *)((ap)+1))+ (ap)->ar_hln+(ap)->ar_pln) #define ar_tpa(ap) (((const u_char *)((ap)+1))+2*(ap)->ar_hln+(ap)->ar_pln) @@ -190,6 +190,30 @@ isnonzero(const u_char *a, size_t len) } static void +tpaddr_print_ip(netdissect_options *ndo, + const struct arp_pkthdr *ap, u_short pro) +{ + if (pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) + ND_PRINT((ndo, "<wrong proto type>")); + else if (PROTO_LEN(ap) != 4) + ND_PRINT((ndo, "<wrong len>")); + else + ND_PRINT((ndo, "%s", ipaddr_string(ndo, TPA(ap)))); +} + +static void +spaddr_print_ip(netdissect_options *ndo, + const struct arp_pkthdr *ap, u_short pro) +{ + if (pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) + ND_PRINT((ndo, "<wrong proto type>")); + else if (PROTO_LEN(ap) != 4) + ND_PRINT((ndo, "<wrong len>")); + else + ND_PRINT((ndo, "%s", ipaddr_string(ndo, SPA(ap)))); +} + +static void atmarp_addr_print(netdissect_options *ndo, const u_char *ha, u_int ha_len, const u_char *srca, u_int srca_len) @@ -205,6 +229,30 @@ atmarp_addr_print(netdissect_options *ndo, } static void +atmarp_tpaddr_print(netdissect_options *ndo, + const struct atmarp_pkthdr *ap, u_short pro) +{ + if (pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) + ND_PRINT((ndo, "<wrong proto type>")); + else if (ATMTPROTO_LEN(ap) != 4) + ND_PRINT((ndo, "<wrong tplen>")); + else + ND_PRINT((ndo, "%s", ipaddr_string(ndo, ATMTPA(ap)))); +} + +static void +atmarp_spaddr_print(netdissect_options *ndo, + const struct atmarp_pkthdr *ap, u_short pro) +{ + if (pro != ETHERTYPE_IP && pro != ETHERTYPE_TRAIL) + ND_PRINT((ndo, "<wrong proto type>")); + else if (ATMSPROTO_LEN(ap) != 4) + ND_PRINT((ndo, "<wrong splen>")); + else + ND_PRINT((ndo, "%s", ipaddr_string(ndo, ATMSPA(ap)))); +} + +static void atmarp_print(netdissect_options *ndo, const u_char *bp, u_int length, u_int caplen) { @@ -252,18 +300,21 @@ atmarp_print(netdissect_options *ndo, switch (op) { case ARPOP_REQUEST: - ND_PRINT((ndo, "who-has %s", ipaddr_string(ndo, ATMTPA(ap)))); + ND_PRINT((ndo, "who-has ")); + atmarp_tpaddr_print(ndo, ap, pro); if (ATMTHRD_LEN(ap) != 0) { ND_PRINT((ndo, " (")); atmarp_addr_print(ndo, ATMTHA(ap), ATMTHRD_LEN(ap), ATMTSA(ap), ATMTSLN(ap)); ND_PRINT((ndo, ")")); } - ND_PRINT((ndo, "tell %s", ipaddr_string(ndo, ATMSPA(ap)))); + ND_PRINT((ndo, " tell ")); + atmarp_spaddr_print(ndo, ap, pro); break; case ARPOP_REPLY: - ND_PRINT((ndo, "%s is-at ", ipaddr_string(ndo, ATMSPA(ap)))); + atmarp_spaddr_print(ndo, ap, pro); + ND_PRINT((ndo, " is-at ")); atmarp_addr_print(ndo, ATMSHA(ap), ATMSHRD_LEN(ap), ATMSSA(ap), ATMSSLN(ap)); break; @@ -280,11 +331,13 @@ atmarp_print(netdissect_options *ndo, case ARPOP_INVREPLY: atmarp_addr_print(ndo, ATMSHA(ap), ATMSHRD_LEN(ap), ATMSSA(ap), ATMSSLN(ap)); - ND_PRINT((ndo, "at %s", ipaddr_string(ndo, ATMSPA(ap)))); + ND_PRINT((ndo, "at ")); + atmarp_spaddr_print(ndo, ap, pro); break; case ARPOP_NAK: - ND_PRINT((ndo, "for %s", ipaddr_string(ndo, ATMSPA(ap)))); + ND_PRINT((ndo, "for ")); + atmarp_spaddr_print(ndo, ap, pro); break; default: @@ -332,7 +385,7 @@ arp_print(netdissect_options *ndo, break; } - if (!ND_TTEST2(*ar_tpa(ap), PROTO_LEN(ap))) { + if (!ND_TTEST2(*TPA(ap), PROTO_LEN(ap))) { ND_PRINT((ndo, "%s", tstr)); ND_DEFAULTPRINT((const u_char *)ap, length); return; @@ -367,16 +420,18 @@ arp_print(netdissect_options *ndo, switch (op) { case ARPOP_REQUEST: - ND_PRINT((ndo, "who-has %s", ipaddr_string(ndo, TPA(ap)))); + ND_PRINT((ndo, "who-has ")); + tpaddr_print_ip(ndo, ap, pro); if (isnonzero((const u_char *)THA(ap), HRD_LEN(ap))) ND_PRINT((ndo, " (%s)", linkaddr_string(ndo, THA(ap), linkaddr, HRD_LEN(ap)))); - ND_PRINT((ndo, " tell %s", ipaddr_string(ndo, SPA(ap)))); + ND_PRINT((ndo, " tell ")); + spaddr_print_ip(ndo, ap, pro); break; case ARPOP_REPLY: - ND_PRINT((ndo, "%s is-at %s", - ipaddr_string(ndo, SPA(ap)), + spaddr_print_ip(ndo, ap, pro); + ND_PRINT((ndo, " is-at %s", linkaddr_string(ndo, SHA(ap), linkaddr, HRD_LEN(ap)))); break; @@ -387,9 +442,9 @@ arp_print(netdissect_options *ndo, break; case ARPOP_REVREPLY: - ND_PRINT((ndo, "%s at %s", - linkaddr_string(ndo, THA(ap), linkaddr, HRD_LEN(ap)), - ipaddr_string(ndo, TPA(ap)))); + ND_PRINT((ndo, "%s at ", + linkaddr_string(ndo, THA(ap), linkaddr, HRD_LEN(ap)))); + tpaddr_print_ip(ndo, ap, pro); break; case ARPOP_INVREQUEST: @@ -399,9 +454,9 @@ arp_print(netdissect_options *ndo, break; case ARPOP_INVREPLY: - ND_PRINT((ndo,"%s at %s", - linkaddr_string(ndo, SHA(ap), linkaddr, HRD_LEN(ap)), - ipaddr_string(ndo, SPA(ap)))); + ND_PRINT((ndo,"%s at ", + linkaddr_string(ndo, SHA(ap), linkaddr, HRD_LEN(ap)))); + spaddr_print_ip(ndo, ap, pro); break; default: |