summaryrefslogtreecommitdiffstats
path: root/print-ipnet.c
diff options
context:
space:
mode:
Diffstat (limited to 'print-ipnet.c')
-rw-r--r--print-ipnet.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/print-ipnet.c b/print-ipnet.c
new file mode 100644
index 0000000..eddcc1d
--- /dev/null
+++ b/print-ipnet.c
@@ -0,0 +1,110 @@
+/* \summary: Solaris DLT_IPNET printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
+#include "extract.h"
+
+
+typedef struct ipnet_hdr {
+ nd_uint8_t iph_version;
+ nd_uint8_t iph_family;
+ nd_uint16_t iph_htype;
+ nd_uint32_t iph_pktlen;
+ nd_uint32_t iph_ifindex;
+ nd_uint32_t iph_grifindex;
+ nd_uint32_t iph_zsrc;
+ nd_uint32_t iph_zdst;
+} ipnet_hdr_t;
+
+#define IPH_AF_INET 2 /* Matches Solaris's AF_INET */
+#define IPH_AF_INET6 26 /* Matches Solaris's AF_INET6 */
+
+#ifdef DLT_IPNET
+
+static const struct tok ipnet_values[] = {
+ { IPH_AF_INET, "IPv4" },
+ { IPH_AF_INET6, "IPv6" },
+ { 0, NULL }
+};
+
+static void
+ipnet_hdr_print(netdissect_options *ndo, const u_char *bp, u_int length)
+{
+ const ipnet_hdr_t *hdr;
+ hdr = (const ipnet_hdr_t *)bp;
+
+ ND_PRINT("%u > %u", GET_BE_U_4(hdr->iph_zsrc),
+ GET_BE_U_4(hdr->iph_zdst));
+
+ if (!ndo->ndo_qflag) {
+ ND_PRINT(", family %s (%u)",
+ tok2str(ipnet_values, "Unknown",
+ GET_U_1(hdr->iph_family)),
+ GET_U_1(hdr->iph_family));
+ } else {
+ ND_PRINT(", %s",
+ tok2str(ipnet_values,
+ "Unknown Ethertype (0x%04x)",
+ GET_U_1(hdr->iph_family)));
+ }
+
+ ND_PRINT(", length %u: ", length);
+}
+
+static void
+ipnet_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
+{
+ const ipnet_hdr_t *hdr;
+
+ ND_TCHECK_LEN(p, sizeof(ipnet_hdr_t));
+ ndo->ndo_ll_hdr_len += sizeof(ipnet_hdr_t);
+
+ if (ndo->ndo_eflag)
+ ipnet_hdr_print(ndo, p, length);
+
+ length -= sizeof(ipnet_hdr_t);
+ caplen -= sizeof(ipnet_hdr_t);
+ hdr = (const ipnet_hdr_t *)p;
+ p += sizeof(ipnet_hdr_t);
+
+ switch (GET_U_1(hdr->iph_family)) {
+
+ case IPH_AF_INET:
+ ip_print(ndo, p, length);
+ break;
+
+ case IPH_AF_INET6:
+ ip6_print(ndo, p, length);
+ break;
+
+ default:
+ if (!ndo->ndo_eflag)
+ ipnet_hdr_print(ndo, (const u_char *)hdr,
+ length + sizeof(ipnet_hdr_t));
+
+ if (!ndo->ndo_suppress_default_print)
+ ND_DEFAULTPRINT(p, caplen);
+ break;
+ }
+}
+
+/*
+ * This is the top level routine of the printer. 'p' points
+ * to the ether header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ */
+void
+ipnet_if_print(netdissect_options *ndo,
+ const struct pcap_pkthdr *h, const u_char *p)
+{
+ ndo->ndo_protocol = "ipnet";
+ ipnet_print(ndo, p, h->len, h->caplen);
+}
+#endif /* DLT_IPNET */