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ping: use the monotonic clock to measure durations
[FreeBSD/FreeBSD.git] / contrib / tcpdump / print-ppi.c
1 /*
2  * Oracle
3  */
4
5 /* \summary: Oracle DLT_PPI printer */
6
7 #ifdef HAVE_CONFIG_H
8 #include "config.h"
9 #endif
10
11 #include <netdissect-stdinc.h>
12
13 #include "netdissect.h"
14 #include "extract.h"
15
16 typedef struct ppi_header {
17         uint8_t         ppi_ver;
18         uint8_t         ppi_flags;
19         uint16_t        ppi_len;
20         uint32_t        ppi_dlt;
21 } ppi_header_t;
22
23 #define PPI_HDRLEN      8
24
25 #ifdef DLT_PPI
26
27 static inline void
28 ppi_header_print(netdissect_options *ndo, const u_char *bp, u_int length)
29 {
30         const ppi_header_t *hdr;
31         uint16_t len;
32         uint32_t dlt;
33         const char *dltname;
34
35         hdr = (const ppi_header_t *)bp;
36
37         len = EXTRACT_LE_16BITS(&hdr->ppi_len);
38         dlt = EXTRACT_LE_32BITS(&hdr->ppi_dlt);
39         dltname = pcap_datalink_val_to_name(dlt);
40
41         if (!ndo->ndo_qflag) {
42                 ND_PRINT((ndo, "V.%d DLT %s (%d) len %d", hdr->ppi_ver,
43                           (dltname != NULL ? dltname : "UNKNOWN"), dlt,
44                           len));
45         } else {
46                 ND_PRINT((ndo, "%s", (dltname != NULL ? dltname : "UNKNOWN")));
47         }
48
49         ND_PRINT((ndo, ", length %u: ", length));
50 }
51
52 static u_int
53 ppi_print(netdissect_options *ndo,
54                const struct pcap_pkthdr *h, const u_char *p)
55 {
56         if_printer printer;
57         const ppi_header_t *hdr;
58         u_int caplen = h->caplen;
59         u_int length = h->len;
60         uint16_t len;
61         uint32_t dlt;
62         uint32_t hdrlen;
63         struct pcap_pkthdr nhdr;
64
65         if (caplen < sizeof(ppi_header_t)) {
66                 ND_PRINT((ndo, "[|ppi]"));
67                 return (caplen);
68         }
69
70         hdr = (const ppi_header_t *)p;
71         len = EXTRACT_LE_16BITS(&hdr->ppi_len);
72         if (caplen < len) {
73                 /*
74                  * If we don't have the entire PPI header, don't
75                  * bother.
76                  */
77                 ND_PRINT((ndo, "[|ppi]"));
78                 return (caplen);
79         }
80         if (len < sizeof(ppi_header_t)) {
81                 ND_PRINT((ndo, "[|ppi]"));
82                 return (len);
83         }
84         dlt = EXTRACT_LE_32BITS(&hdr->ppi_dlt);
85
86         if (ndo->ndo_eflag)
87                 ppi_header_print(ndo, p, length);
88
89         length -= len;
90         caplen -= len;
91         p += len;
92
93         if ((printer = lookup_printer(dlt)) != NULL) {
94                 nhdr = *h;
95                 nhdr.caplen = caplen;
96                 nhdr.len = length;
97                 hdrlen = printer(ndo, &nhdr, p);
98         } else {
99                 if (!ndo->ndo_eflag)
100                         ppi_header_print(ndo, (const u_char *)hdr, length + len);
101
102                 if (!ndo->ndo_suppress_default_print)
103                         ND_DEFAULTPRINT(p, caplen);
104                 hdrlen = 0;
105         }
106         return (len + hdrlen);
107 }
108
109 /*
110  * This is the top level routine of the printer.  'p' points
111  * to the ether header of the packet, 'h->ts' is the timestamp,
112  * 'h->len' is the length of the packet off the wire, and 'h->caplen'
113  * is the number of bytes actually captured.
114  */
115 u_int
116 ppi_if_print(netdissect_options *ndo,
117                const struct pcap_pkthdr *h, const u_char *p)
118 {
119         return (ppi_print(ndo, h, p));
120 }
121
122 /*
123  * Local Variables:
124  * c-style: whitesmith
125  * c-basic-offset: 8
126  * End:
127  */
128
129 #endif /* DLT_PPI */