]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-olsr.c
Use more the EXTRACT_U_1() macro (40/n)
[tcpdump] / print-olsr.c
index c0a7d40a5cdb7070068f656f17fb4cbf4b2c2750..fdfe706bb1e205e24c966361e2993d5b23cd72b4 100644 (file)
  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  * FOR A PARTICULAR PURPOSE.
  *
- * Optimized Link State Protocl (OLSR) as per rfc3626
- *
- * Original code by Hannes Gredler <[email protected]>
+ * Original code by Hannes Gredler <[email protected]>
  * IPv6 additions by Florian Forster <octo at verplant.org>
  */
 
+/* \summary: Optimized Link State Routing Protocol (OLSR) printer */
+
+/* specification: RFC 3626 */
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
 
-#include "interface.h"
+#include "netdissect.h"
 #include "addrtoname.h"
 #include "extract.h"
 
@@ -240,8 +242,8 @@ olsr_print_lq_neighbor4(netdissect_options *ndo,
         if (!ND_TTEST(*lq_neighbor))
             return (-1);
 
-        ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2lf%%"
-               ", neighbor-link-quality %.2lf%%",
+        ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2f%%"
+               ", neighbor-link-quality %.2f%%",
                ipaddr_string(ndo, lq_neighbor->neighbor),
                ((double)lq_neighbor->link_quality/2.55),
                ((double)lq_neighbor->neighbor_link_quality/2.55)));
@@ -252,7 +254,6 @@ olsr_print_lq_neighbor4(netdissect_options *ndo,
     return (0);
 }
 
-#if INET6
 static int
 olsr_print_lq_neighbor6(netdissect_options *ndo,
                         const u_char *msg_data, u_int hello_len)
@@ -265,8 +266,8 @@ olsr_print_lq_neighbor6(netdissect_options *ndo,
         if (!ND_TTEST(*lq_neighbor))
             return (-1);
 
-        ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2lf%%"
-               ", neighbor-link-quality %.2lf%%",
+        ND_PRINT((ndo, "\n\t      neighbor %s, link-quality %.2f%%"
+               ", neighbor-link-quality %.2f%%",
                ip6addr_string(ndo, lq_neighbor->neighbor),
                ((double)lq_neighbor->link_quality/2.55),
                ((double)lq_neighbor->neighbor_link_quality/2.55)));
@@ -276,7 +277,6 @@ olsr_print_lq_neighbor6(netdissect_options *ndo,
     }
     return (0);
 }
-#endif /* INET6 */
 
 /*
  * print a neighbor list.
@@ -335,11 +335,11 @@ olsr_print(netdissect_options *ndo,
     ND_TCHECK2(*tptr, sizeof(struct olsr_common));
 
     ptr.common = (const struct olsr_common *)tptr;
-    length = min(length, EXTRACT_16BITS(ptr.common->packet_len));
+    length = min(length, EXTRACT_BE_U_2(ptr.common->packet_len));
 
     ND_PRINT((ndo, "OLSRv%i, seq 0x%04x, length %u",
             (is_ipv6 == 0) ? 4 : 6,
-            EXTRACT_16BITS(ptr.common->packet_seq),
+            EXTRACT_BE_U_2(ptr.common->packet_seq),
             length));
 
     tptr += sizeof(struct olsr_common);
@@ -359,14 +359,12 @@ olsr_print(netdissect_options *ndo,
         } msgptr;
         int msg_len_valid = 0;
 
-        ND_TCHECK2(*tptr, sizeof(struct olsr_msg4));
-
-#if INET6
         if (is_ipv6)
         {
+            ND_TCHECK2(*tptr, sizeof(struct olsr_msg6));
             msgptr.v6 = (const struct olsr_msg6 *) tptr;
             msg_type = msgptr.v6->msg_type;
-            msg_len = EXTRACT_16BITS(msgptr.v6->msg_len);
+            msg_len = EXTRACT_BE_U_2(msgptr.v6->msg_len);
             if ((msg_len >= sizeof (struct olsr_msg6))
                     && (msg_len <= length))
                 msg_len_valid = 1;
@@ -377,13 +375,13 @@ olsr_print(netdissect_options *ndo,
             }
 
             ND_PRINT((ndo, "\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
-                    "\n\t  vtime %.3lfs, msg-seq 0x%04x, length %u%s",
+                    "\n\t  vtime %.3fs, msg-seq 0x%04x, length %u%s",
                     tok2str(olsr_msg_values, "Unknown", msg_type),
                     msg_type, ip6addr_string(ndo, msgptr.v6->originator),
                     msgptr.v6->ttl,
                     msgptr.v6->hopcount,
                     ME_TO_DOUBLE(msgptr.v6->vtime),
-                    EXTRACT_16BITS(msgptr.v6->msg_seq),
+                    EXTRACT_BE_U_2(msgptr.v6->msg_seq),
                     msg_len, (msg_len_valid == 0) ? " (invalid)" : ""));
             if (!msg_len_valid) {
                 return;
@@ -393,11 +391,11 @@ olsr_print(netdissect_options *ndo,
             msg_data = tptr + sizeof(struct olsr_msg6);
         }
         else /* (!is_ipv6) */
-#endif /* INET6 */
         {
+            ND_TCHECK2(*tptr, sizeof(struct olsr_msg4));
             msgptr.v4 = (const struct olsr_msg4 *) tptr;
             msg_type = msgptr.v4->msg_type;
-            msg_len = EXTRACT_16BITS(msgptr.v4->msg_len);
+            msg_len = EXTRACT_BE_U_2(msgptr.v4->msg_len);
             if ((msg_len >= sizeof (struct olsr_msg4))
                     && (msg_len <= length))
                 msg_len_valid = 1;
@@ -408,13 +406,13 @@ olsr_print(netdissect_options *ndo,
             }
 
             ND_PRINT((ndo, "\n\t%s Message (%#04x), originator %s, ttl %u, hop %u"
-                    "\n\t  vtime %.3lfs, msg-seq 0x%04x, length %u%s",
+                    "\n\t  vtime %.3fs, msg-seq 0x%04x, length %u%s",
                     tok2str(olsr_msg_values, "Unknown", msg_type),
                     msg_type, ipaddr_string(ndo, msgptr.v4->originator),
                     msgptr.v4->ttl,
                     msgptr.v4->hopcount,
                     ME_TO_DOUBLE(msgptr.v4->vtime),
-                    EXTRACT_16BITS(msgptr.v4->msg_seq),
+                    EXTRACT_BE_U_2(msgptr.v4->msg_seq),
                     msg_len, (msg_len_valid == 0) ? " (invalid)" : ""));
             if (!msg_len_valid) {
                 return;
@@ -432,7 +430,7 @@ olsr_print(netdissect_options *ndo,
             ND_TCHECK2(*msg_data, sizeof(struct olsr_hello));
 
             ptr.hello = (const struct olsr_hello *)msg_data;
-            ND_PRINT((ndo, "\n\t  hello-time %.3lfs, MPR willingness %u",
+            ND_PRINT((ndo, "\n\t  hello-time %.3fs, MPR willingness %u",
                    ME_TO_DOUBLE(ptr.hello->htime), ptr.hello->will));
             msg_data += sizeof(struct olsr_hello);
             msg_tlen -= sizeof(struct olsr_hello);
@@ -447,7 +445,7 @@ olsr_print(netdissect_options *ndo,
 
                 ptr.hello_link = (const struct olsr_hello_link *)msg_data;
 
-                hello_len = EXTRACT_16BITS(ptr.hello_link->len);
+                hello_len = EXTRACT_BE_U_2(ptr.hello_link->len);
                 link_type = OLSR_EXTRACT_LINK_TYPE(ptr.hello_link->link_code);
                 neighbor_type = OLSR_EXTRACT_NEIGHBOR_TYPE(ptr.hello_link->link_code);
 
@@ -473,13 +471,10 @@ olsr_print(netdissect_options *ndo,
                     if (olsr_print_neighbor(ndo, msg_data, hello_len) == -1)
                         goto trunc;
                 } else {
-#if INET6
                     if (is_ipv6) {
                         if (olsr_print_lq_neighbor6(ndo, msg_data, hello_len) == -1)
                             goto trunc;
-                    } else
-#endif
-                    {
+                    } else {
                         if (olsr_print_lq_neighbor4(ndo, msg_data, hello_len) == -1)
                             goto trunc;
                     }
@@ -498,7 +493,7 @@ olsr_print(netdissect_options *ndo,
 
             ptr.tc = (const struct olsr_tc *)msg_data;
             ND_PRINT((ndo, "\n\t    advertised neighbor seq 0x%04x",
-                   EXTRACT_16BITS(ptr.tc->ans_seq)));
+                   EXTRACT_BE_U_2(ptr.tc->ans_seq)));
             msg_data += sizeof(struct olsr_tc);
             msg_tlen -= sizeof(struct olsr_tc);
 
@@ -506,13 +501,10 @@ olsr_print(netdissect_options *ndo,
                 if (olsr_print_neighbor(ndo, msg_data, msg_tlen) == -1)
                     goto trunc;
             } else {
-#if INET6
                 if (is_ipv6) {
                     if (olsr_print_lq_neighbor6(ndo, msg_data, msg_tlen) == -1)
                         goto trunc;
-                } else
-#endif
-                {
+                } else {
                     if (olsr_print_lq_neighbor4(ndo, msg_data, msg_tlen) == -1)
                         goto trunc;
                 }
@@ -523,21 +515,14 @@ olsr_print(netdissect_options *ndo,
         {
             size_t addr_size = sizeof(struct in_addr);
 
-#if INET6
             if (is_ipv6)
                 addr_size = sizeof(struct in6_addr);
-#endif
 
             while (msg_tlen >= addr_size) {
                 ND_TCHECK2(*msg_data, addr_size);
-#if INET6
                 ND_PRINT((ndo, "\n\t  interface address %s",
                         is_ipv6 ? ip6addr_string(ndo, msg_data) :
                         ipaddr_string(ndo, msg_data)));
-#else
-                ND_PRINT((ndo, "\n\t  interface address %s",
-                        ipaddr_string(ndo, msg_data)));
-#endif
 
                 msg_data += addr_size;
                 msg_tlen -= addr_size;
@@ -546,7 +531,6 @@ olsr_print(netdissect_options *ndo,
         }
 
         case OLSR_HNA_MSG:
-#if INET6
             if (is_ipv6)
             {
                 int i = 0;
@@ -570,7 +554,6 @@ olsr_print(netdissect_options *ndo,
                 }
             }
             else
-#endif
             {
                 int col = 0;
 
@@ -583,30 +566,44 @@ olsr_print(netdissect_options *ndo,
                     ptr.hna = (const struct olsr_hna4 *)msg_data;
 
                     /* print 4 prefixes per line */
-                    if (!ptr.hna->network[0] //
-                        && !ptr.hna->network[1] //
-                        && !ptr.hna->network[2] //
-                        && !ptr.hna->network[3] //
-                        && !ptr.hna->mask[GW_HNA_PAD] //
-                        && ptr.hna->mask[GW_HNA_FLAGS]) {
+                    if (!ptr.hna->network[0] && !ptr.hna->network[1] &&
+                        !ptr.hna->network[2] && !ptr.hna->network[3] &&
+                        !ptr.hna->mask[GW_HNA_PAD] &&
+                        ptr.hna->mask[GW_HNA_FLAGS]) {
                             /* smart gateway */
                             ND_PRINT((ndo, "%sSmart-Gateway:%s%s%s%s%s %u/%u",
-                                col == 0 ? "\n\t    " : ", ", // indent
-                                // sgw
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_LINKSPEED) ? " LINKSPEED" : "", // LINKSPEED
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_IPV4) ? " IPV4" : "", // IPV4
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_IPV4_NAT) ? " IPV4-NAT" : "", // IPV4_NAT
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_IPV6) ? " IPV6" : "", // IPV6
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_IPV6PREFIX) ? " IPv6-PREFIX" : "", // IPv6PREFIX
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_LINKSPEED) ? deserialize_gw_speed(ptr.hna->mask[GW_HNA_UPLINK]) : 0, // uplink
-                                (ptr.hna->mask[GW_HNA_FLAGS] & GW_HNA_FLAG_LINKSPEED) ? deserialize_gw_speed(ptr.hna->mask[GW_HNA_DOWNLINK]) : 0 // downlink
+                                col == 0 ? "\n\t    " : ", ", /* indent */
+                                /* sgw */
+                                /* LINKSPEED */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_LINKSPEED) ? " LINKSPEED" : "",
+                                /* IPV4 */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_IPV4) ? " IPV4" : "",
+                                /* IPV4-NAT */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_IPV4_NAT) ? " IPV4-NAT" : "",
+                                /* IPV6 */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_IPV6) ? " IPV6" : "",
+                                /* IPv6PREFIX */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_IPV6PREFIX) ? " IPv6-PREFIX" : "",
+                                /* uplink */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_LINKSPEED) ?
+                                 deserialize_gw_speed(ptr.hna->mask[GW_HNA_UPLINK]) : 0,
+                                /* downlink */
+                                (ptr.hna->mask[GW_HNA_FLAGS] &
+                                 GW_HNA_FLAG_LINKSPEED) ?
+                                 deserialize_gw_speed(ptr.hna->mask[GW_HNA_DOWNLINK]) : 0
                                 ));
                     } else {
                         /* normal route */
                         ND_PRINT((ndo, "%s%s/%u",
                                 col == 0 ? "\n\t    " : ", ",
                                 ipaddr_string(ndo, ptr.hna->network),
-                                mask2plen(EXTRACT_32BITS(ptr.hna->mask))));
+                                mask2plen(EXTRACT_BE_U_4(ptr.hna->mask))));
                     }
 
                     msg_data += sizeof(struct olsr_hna4);
@@ -619,24 +616,27 @@ olsr_print(netdissect_options *ndo,
 
         case OLSR_NAMESERVICE_MSG:
         {
-            u_int name_entries = EXTRACT_16BITS(msg_data+2);
-            u_int addr_size = 4;
-            int name_entries_valid = 0;
+            u_int name_entries;
+            u_int addr_size;
+            int name_entries_valid;
             u_int i;
 
+            if (msg_tlen < 4)
+                goto trunc;
+            ND_TCHECK_4(msg_data);
+
+            name_entries = EXTRACT_BE_U_2(msg_data + 2);
+            addr_size = 4;
             if (is_ipv6)
                 addr_size = 16;
 
+            name_entries_valid = 0;
             if ((name_entries > 0)
                     && ((name_entries * (4 + addr_size)) <= msg_tlen))
                 name_entries_valid = 1;
 
-            if (msg_tlen < 4)
-                goto trunc;
-            ND_TCHECK2(*msg_data, 4);
-
             ND_PRINT((ndo, "\n\t  Version %u, Entries %u%s",
-                   EXTRACT_16BITS(msg_data),
+                   EXTRACT_BE_U_2(msg_data),
                    name_entries, (name_entries_valid == 0) ? " (invalid)" : ""));
 
             if (name_entries_valid == 0)
@@ -650,10 +650,10 @@ olsr_print(netdissect_options *ndo,
 
                 if (msg_tlen < 4)
                     break;
-                ND_TCHECK2(*msg_data, 4);
+                ND_TCHECK_4(msg_data);
 
-                name_entry_type = EXTRACT_16BITS(msg_data);
-                name_entry_len = EXTRACT_16BITS(msg_data+2);
+                name_entry_type = EXTRACT_BE_U_2(msg_data);
+                name_entry_len = EXTRACT_BE_U_2(msg_data + 2);
 
                 msg_data += 4;
                 msg_tlen -= 4;
@@ -678,12 +678,10 @@ olsr_print(netdissect_options *ndo,
 
                 ND_TCHECK2(*msg_data, addr_size + name_entry_len + name_entry_padding);
 
-#if INET6
                 if (is_ipv6)
                     ND_PRINT((ndo, ", address %s, name \"",
                             ip6addr_string(ndo, msg_data)));
                 else
-#endif
                     ND_PRINT((ndo, ", address %s, name \"",
                             ipaddr_string(ndo, msg_data)));
                 (void)fn_printn(ndo, msg_data + addr_size, name_entry_len, NULL);