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CI: Add warning exemptions for Sun C (suncc-5.14) on Solaris 10
[tcpdump] / print-fddi.c
diff --git a/print-fddi.c b/print-fddi.c
index 5035811039669a3b1dd18f366ed150759d0456aa..ccdf588923658c0cede2352294a6bd48aa702a1c 100644 (file)
--- a/print-fddi.c
+++ b/print-fddi.c
@@ -19,47 +19,73 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-fddi.c,v 1.44 2000-09-28 06:42:59 guy Exp $ (LBL)";
-#endif
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: Fiber Distributed Data Interface (FDDI) printer */
 
 
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/file.h>
-#include <sys/ioctl.h>
+#include <config.h>
 
 
-struct mbuf;
-struct rtentry;
+#include "netdissect-stdinc.h"
 
 
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-
-#include <ctype.h>
-#include <netdb.h>
-#include <pcap.h>
-#include <stdio.h>
 #include <string.h>
 
 #include <string.h>
 
-#include "interface.h"
+#include "netdissect.h"
+#include "extract.h"
 #include "addrtoname.h"
 #include "addrtoname.h"
-#include "ethertype.h"
 
 
-#include "ether.h"
-#include "fddi.h"
+/*
+ * Based on Ultrix if_fddi.h
+ */
+
+struct fddi_header {
+       nd_uint8_t  fddi_fc;            /* frame control */
+       nd_mac48 fddi_dhost;
+       nd_mac48 fddi_shost;
+};
+
+/*
+ * Length of an FDDI header; note that some compilers may pad
+ * "struct fddi_header" to a multiple of 4 bytes, for example, so
+ * "sizeof (struct fddi_header)" may not give the right
+ * answer.
+ */
+#define FDDI_HDRLEN 13
+
+/* Useful values for fddi_fc (frame control) field */
+
+/*
+ * FDDI Frame Control bits
+ */
+#define        FDDIFC_C                0x80            /* Class bit */
+#define        FDDIFC_L                0x40            /* Address length bit */
+#define        FDDIFC_F                0x30            /* Frame format bits */
+#define        FDDIFC_Z                0x0f            /* Control bits */
+
+/*
+ * FDDI Frame Control values. (48-bit addressing only).
+ */
+#define        FDDIFC_VOID             0x40            /* Void frame */
+#define        FDDIFC_NRT              0x80            /* Nonrestricted token */
+#define        FDDIFC_RT               0xc0            /* Restricted token */
+#define        FDDIFC_SMT_INFO         0x41            /* SMT Info */
+#define        FDDIFC_SMT_NSA          0x4F            /* SMT Next station adrs */
+#define        FDDIFC_MAC_BEACON       0xc2            /* MAC Beacon frame */
+#define        FDDIFC_MAC_CLAIM        0xc3            /* MAC Claim frame */
+#define        FDDIFC_LLC_ASYNC        0x50            /* Async. LLC frame */
+#define        FDDIFC_LLC_SYNC         0xd0            /* Sync. LLC frame */
+#define        FDDIFC_IMP_ASYNC        0x60            /* Implementor Async. */
+#define        FDDIFC_IMP_SYNC         0xe0            /* Implementor Synch. */
+#define FDDIFC_SMT             0x40            /* SMT frame */
+#define FDDIFC_MAC             0xc0            /* MAC frame */
+
+#define        FDDIFC_CLFF             0xF0            /* Class/Length/Format bits */
+#define        FDDIFC_ZZZZ             0x0F            /* Control bits */
 
 /*
  * Some FDDI interfaces use bit-swapped addresses.
  */
 
 /*
  * Some FDDI interfaces use bit-swapped addresses.
  */
-#if defined(ultrix) || defined(__alpha) || defined(__bsdi) || defined(__NetBSD__)
-int    fddi_bitswap = 0;
+#if defined(__alpha) || defined(__NetBSD__) || defined(__linux__)
+static int fddi_bitswap = 0;
 #else
 #else
-int    fddi_bitswap = 1;
+static int fddi_bitswap = 1;
 #endif
 
 /*
 #endif
 
 /*
@@ -92,9 +118,7 @@ int  fddi_bitswap = 1;
  *  - vj
  */
 
  *  - vj
  */
 
-#define FDDI_HDRLEN (sizeof(struct fddi_header))
-
-static u_char fddi_bit_swap[] = {
+static const u_char fddi_bit_swap[] = {
        0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
        0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
        0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
        0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
        0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
        0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
@@ -132,78 +156,78 @@ static u_char fddi_bit_swap[] = {
 /*
  * Print FDDI frame-control bits
  */
 /*
  * Print FDDI frame-control bits
  */
-static inline void
-print_fddi_fc(u_char fc)
+static void
+print_fddi_fc(netdissect_options *ndo, u_char fc)
 {
        switch (fc) {
 
        case FDDIFC_VOID:                         /* Void frame */
 {
        switch (fc) {
 
        case FDDIFC_VOID:                         /* Void frame */
-               printf("void ");
+               ND_PRINT("void ");
                break;
 
        case FDDIFC_NRT:                          /* Nonrestricted token */
                break;
 
        case FDDIFC_NRT:                          /* Nonrestricted token */
-               printf("nrt ");
+               ND_PRINT("nrt ");
                break;
 
        case FDDIFC_RT:                           /* Restricted token */
                break;
 
        case FDDIFC_RT:                           /* Restricted token */
-               printf("rt ");
+               ND_PRINT("rt ");
                break;
 
        case FDDIFC_SMT_INFO:                     /* SMT Info */
                break;
 
        case FDDIFC_SMT_INFO:                     /* SMT Info */
-               printf("info ");
+               ND_PRINT("info ");
                break;
 
        case FDDIFC_SMT_NSA:                      /* SMT Next station adrs */
                break;
 
        case FDDIFC_SMT_NSA:                      /* SMT Next station adrs */
-               printf("nsa ");
+               ND_PRINT("nsa ");
                break;
 
        case FDDIFC_MAC_BEACON:                   /* MAC Beacon frame */
                break;
 
        case FDDIFC_MAC_BEACON:                   /* MAC Beacon frame */
-               printf("beacon ");
+               ND_PRINT("beacon ");
                break;
 
        case FDDIFC_MAC_CLAIM:                    /* MAC Claim frame */
                break;
 
        case FDDIFC_MAC_CLAIM:                    /* MAC Claim frame */
-               printf("claim ");
+               ND_PRINT("claim ");
                break;
 
        default:
                switch (fc & FDDIFC_CLFF) {
 
                case FDDIFC_MAC:
                break;
 
        default:
                switch (fc & FDDIFC_CLFF) {
 
                case FDDIFC_MAC:
-                       printf("mac%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("mac%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                case FDDIFC_SMT:
                        break;
 
                case FDDIFC_SMT:
-                       printf("smt%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("smt%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                case FDDIFC_LLC_ASYNC:
                        break;
 
                case FDDIFC_LLC_ASYNC:
-                       printf("async%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("async%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                case FDDIFC_LLC_SYNC:
                        break;
 
                case FDDIFC_LLC_SYNC:
-                       printf("sync%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("sync%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                case FDDIFC_IMP_ASYNC:
                        break;
 
                case FDDIFC_IMP_ASYNC:
-                       printf("imp_async%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("imp_async%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                case FDDIFC_IMP_SYNC:
                        break;
 
                case FDDIFC_IMP_SYNC:
-                       printf("imp_sync%1x ", fc & FDDIFC_ZZZZ);
+                       ND_PRINT("imp_sync%1x ", fc & FDDIFC_ZZZZ);
                        break;
 
                default:
                        break;
 
                default:
-                       printf("%02x ", fc);
+                       ND_PRINT("%02x ", fc);
                        break;
                }
        }
 }
 
 /* Extract src, dst addresses */
                        break;
                }
        }
 }
 
 /* Extract src, dst addresses */
-static inline void
+static void
 extract_fddi_addrs(const struct fddi_header *fddip, char *fsrc, char *fdst)
 {
 extract_fddi_addrs(const struct fddi_header *fddip, char *fsrc, char *fdst)
 {
-       register int i;
+       int i;
 
        if (fddi_bitswap) {
                /*
 
        if (fddi_bitswap) {
                /*
@@ -214,86 +238,67 @@ extract_fddi_addrs(const struct fddi_header *fddip, char *fsrc, char *fdst)
                        fdst[i] = fddi_bit_swap[fddip->fddi_dhost[i]];
                for (i = 0; i < 6; ++i)
                        fsrc[i] = fddi_bit_swap[fddip->fddi_shost[i]];
                        fdst[i] = fddi_bit_swap[fddip->fddi_dhost[i]];
                for (i = 0; i < 6; ++i)
                        fsrc[i] = fddi_bit_swap[fddip->fddi_shost[i]];
-       }
-       else {
-               memcpy(fdst, (char *)fddip->fddi_dhost, 6);
-               memcpy(fsrc, (char *)fddip->fddi_shost, 6);
+       } else {
+               memcpy(fdst, (const char *)fddip->fddi_dhost, 6);
+               memcpy(fsrc, (const char *)fddip->fddi_shost, 6);
        }
 }
 
 /*
  * Print the FDDI MAC header
  */
        }
 }
 
 /*
  * Print the FDDI MAC header
  */
-static inline void
-fddi_print(register const struct fddi_header *fddip, register u_int length,
-          register const u_char *fsrc, register const u_char *fdst)
+static void
+fddi_hdr_print(netdissect_options *ndo,
+               const struct fddi_header *fddip, u_int length,
+               const u_char *fsrc, const u_char *fdst)
 {
 {
-       char *srcname, *dstname;
-
-       srcname = etheraddr_string(fsrc);
-       dstname = etheraddr_string(fdst);
-
-       if (vflag)
-               (void) printf("%02x %s %s %d: ",
-                      fddip->fddi_fc,
-                      srcname, dstname,
-                      length);
-       else if (qflag)
-               printf("%s %s %d: ", srcname, dstname, length);
-       else {
-               (void) print_fddi_fc(fddip->fddi_fc);
-               (void) printf("%s %s %d: ", srcname, dstname, length);
-       }
+       const char *srcname, *dstname;
+
+       srcname = mac48_string(ndo, fsrc);
+       dstname = mac48_string(ndo, fdst);
+
+       if (!ndo->ndo_qflag)
+               print_fddi_fc(ndo, GET_U_1(fddip->fddi_fc));
+       ND_PRINT("%s > %s, length %u: ",
+              srcname, dstname,
+              length);
 }
 
 }
 
-static inline void
-fddi_smt_print(const u_char *p, u_int length)
+static void
+fddi_smt_print(netdissect_options *ndo, const u_char *p _U_, u_int length _U_)
 {
 {
-       printf("<SMT printer not yet implemented>");
+       ND_PRINT("<SMT printer not yet implemented>");
 }
 
 }
 
-/*
- * This is the top level routine of the printer.  'sp' is the points
- * to the FDDI header of the packet, 'tvp' is the timestamp,
- * 'length' is the length of the packet off the wire, and 'caplen'
- * is the number of bytes actually captured.
- */
-void
-fddi_if_print(u_char *pcap, const struct pcap_pkthdr *h,
-             register const u_char *p)
+u_int
+fddi_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen)
 {
 {
-       u_int caplen = h->caplen;
-       u_int length = h->len;
-       const struct fddi_header *fddip = (struct fddi_header *)p;
-       struct ether_header ehdr;
-       u_short extracted_ethertype;
-
-       ts_print(&h->ts);
+       const struct fddi_header *fddip = (const struct fddi_header *)p;
+       uint8_t fc;
+       nd_mac48 srcmac, dstmac;
+       struct lladdr_info src, dst;
+       int llc_hdrlen;
 
 
+       ndo->ndo_protocol = "fddi";
        if (caplen < FDDI_HDRLEN) {
        if (caplen < FDDI_HDRLEN) {
-               printf("[|fddi]");
-               goto out;
+               nd_print_trunc(ndo);
+               return (caplen);
        }
        }
+
+       fc = GET_U_1(fddip->fddi_fc);
+
        /*
         * Get the FDDI addresses into a canonical form
         */
        /*
         * Get the FDDI addresses into a canonical form
         */
-       extract_fddi_addrs(fddip, (char *)ESRC(&ehdr), (char *)EDST(&ehdr));
-       /*
-        * Some printers want to get back at the link level addresses,
-        * and/or check that they're not walking off the end of the packet.
-        * Rather than pass them all the way down, we set these globals.
-        */
-       snapend = p + caplen;
-       /*
-        * Actually, the only printer that uses packetp is print-bootp.c,
-        * and it assumes that packetp points to an Ethernet header.  The
-        * right thing to do is to fix print-bootp.c to know which link
-        * type is in use when it excavates. XXX
-        */
-       packetp = (u_char *)&ehdr;
+       extract_fddi_addrs(fddip, (char *)srcmac, (char *)dstmac);
+
+       if (ndo->ndo_eflag)
+               fddi_hdr_print(ndo, fddip, length, srcmac, dstmac);
 
 
-       if (eflag)
-               fddi_print(fddip, length, ESRC(&ehdr), EDST(&ehdr));
+       src.addr = srcmac;
+       src.addr_string = mac48_string;
+       dst.addr = dstmac;
+       dst.addr_string = mac48_string;
 
        /* Skip over FDDI MAC header */
        length -= FDDI_HDRLEN;
 
        /* Skip over FDDI MAC header */
        length -= FDDI_HDRLEN;
@@ -301,36 +306,42 @@ fddi_if_print(u_char *pcap, const struct pcap_pkthdr *h,
        caplen -= FDDI_HDRLEN;
 
        /* Frame Control field determines interpretation of packet */
        caplen -= FDDI_HDRLEN;
 
        /* Frame Control field determines interpretation of packet */
-       extracted_ethertype = 0;
-       if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) {
+       if ((fc & FDDIFC_CLFF) == FDDIFC_LLC_ASYNC) {
                /* Try to print the LLC-layer header & higher layers */
                /* Try to print the LLC-layer header & higher layers */
-               if (llc_print(p, length, caplen, ESRC(&ehdr), EDST(&ehdr))
-                   == 0) {
+               llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
+               if (llc_hdrlen < 0) {
                        /*
                         * Some kinds of LLC packet we cannot
                         * handle intelligently
                         */
                        /*
                         * Some kinds of LLC packet we cannot
                         * handle intelligently
                         */
-                       if (!eflag)
-                               fddi_print(fddip, length,
-                                   ESRC(&ehdr), EDST(&ehdr));
-                       if (extracted_ethertype) {
-                               printf("(LLC %s) ",
-                       etherproto_string(htons(extracted_ethertype)));
-                       }
-                       if (!xflag && !qflag)
-                               default_print(p, caplen);
+                       if (!ndo->ndo_suppress_default_print)
+                               ND_DEFAULTPRINT(p, caplen);
+                       llc_hdrlen = -llc_hdrlen;
                }
                }
-       } else if ((fddip->fddi_fc & FDDIFC_CLFF) == FDDIFC_SMT)
-               fddi_smt_print(p, caplen);
-       else {
+       } else if ((fc & FDDIFC_CLFF) == FDDIFC_SMT) {
+               fddi_smt_print(ndo, p, caplen);
+               llc_hdrlen = 0;
+       } else {
                /* Some kinds of FDDI packet we cannot handle intelligently */
                /* Some kinds of FDDI packet we cannot handle intelligently */
-               if (!eflag)
-                       fddi_print(fddip, length, ESRC(&ehdr), EDST(&ehdr));
-               if (!xflag && !qflag)
-                       default_print(p, caplen);
+               if (!ndo->ndo_eflag)
+                       fddi_hdr_print(ndo, fddip, length + FDDI_HDRLEN, srcmac,
+                           dstmac);
+               if (!ndo->ndo_suppress_default_print)
+                       ND_DEFAULTPRINT(p, caplen);
+               llc_hdrlen = 0;
        }
        }
-       if (xflag)
-               default_print(p, caplen);
-out:
-       putchar('\n');
+       return (FDDI_HDRLEN + llc_hdrlen);
+}
+
+/*
+ * This is the top level routine of the printer.  'p' points
+ * to the FDDI 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
+fddi_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
+{
+       ndo->ndo_protocol = "fddi";
+       ndo->ndo_ll_hdr_len += fddi_print(ndo, p, h->len, h->caplen);
 }
 }
[mirror] the TCPdump network dissector