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12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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22 #define NETDISSECT_REWORKED
27 #include <tcpdump-stdinc.h>
30 uint8_t comp_nxt; /* Next Header */
31 uint8_t comp_flags; /* Length of data, in 32bit */
32 uint16_t comp_cpi; /* Compression parameter index */
35 #if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
39 #include "interface.h"
43 ipcomp_print(netdissect_options *ndo, register const u_char *bp, int *nhdr _U_)
45 register const struct ipcomp *ipcomp;
46 register const u_char *ep;
48 #if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
52 ipcomp = (struct ipcomp *)bp;
53 cpi = EXTRACT_16BITS(&ipcomp->comp_cpi);
55 /* 'ep' points to the end of available data. */
56 ep = ndo->ndo_snapend;
58 if ((u_char *)(ipcomp + 1) >= ep - sizeof(struct ipcomp)) {
59 ND_PRINT((ndo, "[|IPCOMP]"));
62 ND_PRINT((ndo, "IPComp(cpi=0x%04x)", cpi));
64 #if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
69 * We may want to decompress the packet here. Packet buffer
70 * management is a headache (if we decompress, packet will become
74 *nhdr = ipcomp->comp_nxt;
75 advance = sizeof(struct ipcomp);
77 ND_PRINT((ndo, ": "));