CI: Add warning exemptions for Sun C (suncc-5.14) on Solaris 10

[tcpdump] / print-cnfp.c

diff --git a/print-cnfp.c b/print-cnfp.c
index 9f3eefae722f27a2538c1383b85aeb4809ff5acf..d5fd9d67472684c6aaf2cb79d8aae21806477c0f 100644 (file)
--- a/print-cnfp.c
+++ b/print-cnfp.c
@@ -30,165 +30,389 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 

-/* Cisco NetFlow protocol */
+/* \summary: Cisco NetFlow protocol printer */

 
 

-#define NETDISSECT_REWORKED
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/*
+ * Cisco NetFlow protocol
+ *
+ * See
+ *
+ *    https://www.cisco.com/c/en/us/td/docs/net_mgmt/netflow_collection_engine/3-6/user/guide/format.html#wp1005892
+ */

 
 

-#include <tcpdump-stdinc.h>
+#include <config.h>

 
 

-#include <stdio.h>
-#include <string.h>
+#include "netdissect-stdinc.h"

 
 

-#include "interface.h"
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"

 #include "addrtoname.h"
 #include "extract.h"
 
 #include "tcp.h"
 #include "ipproto.h"
 
 #include "addrtoname.h"
 #include "extract.h"
 
 #include "tcp.h"
 #include "ipproto.h"
 

-struct nfhdr {
-       uint32_t        ver_cnt;        /* version [15], and # of records */
-       uint32_t        msys_uptime;
-       uint32_t        utc_sec;
-       uint32_t        utc_nsec;
-       uint32_t        sequence;       /* v5 flow sequence number */
-       uint32_t        reserved;       /* v5 only */
+struct nfhdr_v1 {
+       nd_uint16_t     version;        /* version number */
+       nd_uint16_t     count;          /* # of records */
+       nd_uint32_t     msys_uptime;
+       nd_uint32_t     utc_sec;
+       nd_uint32_t     utc_nsec;

 };
 
 };
 

-struct nfrec {
-       struct in_addr  src_ina;
-       struct in_addr  dst_ina;
-       struct in_addr  nhop_ina;
-       uint32_t        ifaces;         /* src,dst ifaces */
-       uint32_t        packets;
-       uint32_t        octets;
-       uint32_t        start_time;     /* sys_uptime value */
-       uint32_t        last_time;      /* sys_uptime value */
-       uint32_t        ports;          /* src,dst ports */
-       uint32_t        proto_tos;      /* proto, tos, pad, flags(v5) */
-       uint32_t        asses;          /* v1: flags; v5: src,dst AS */
-       uint32_t        masks;          /* src,dst addr prefix; v6: encaps */
-       struct in_addr  peer_nexthop;   /* v6: IP address of the nexthop within the peer (FIB)*/
+struct nfrec_v1 {
+       nd_ipv4         src_ina;
+       nd_ipv4         dst_ina;
+       nd_ipv4         nhop_ina;
+       nd_uint16_t     input;          /* SNMP index of input interface */
+       nd_uint16_t     output;         /* SNMP index of output interface */
+       nd_uint32_t     packets;        /* packets in the flow */
+       nd_uint32_t     octets;         /* layer 3 octets in the packets of the flow */
+       nd_uint32_t     start_time;     /* sys_uptime value at start of flow */
+       nd_uint32_t     last_time;      /* sys_uptime value when last packet of flow was received */
+       nd_uint16_t     srcport;        /* TCP/UDP source port or equivalent */
+       nd_uint16_t     dstport;        /* TCP/UDP source port or equivalent */
+       nd_byte         pad1[2];        /* pad */
+       nd_uint8_t      proto;          /* IP protocol type */
+       nd_uint8_t      tos;            /* IP type of service */
+       nd_uint8_t      tcp_flags;      /* cumulative OR of TCP flags */
+       nd_byte         pad[3];         /* padding */
+       nd_uint32_t     reserved;       /* unused */

 };
 
 };
 

-void
-cnfp_print(netdissect_options *ndo, const u_char *cp)
+struct nfhdr_v5 {
+       nd_uint16_t     version;        /* version number */
+       nd_uint16_t     count;          /* # of records */
+       nd_uint32_t     msys_uptime;
+       nd_uint32_t     utc_sec;
+       nd_uint32_t     utc_nsec;
+       nd_uint32_t     sequence;       /* flow sequence number */
+       nd_uint8_t      engine_type;    /* type of flow-switching engine */
+       nd_uint8_t      engine_id;      /* slot number of the flow-switching engine */
+       nd_uint16_t     sampling_interval; /* sampling mode and interval */
+};
+
+struct nfrec_v5 {
+       nd_ipv4         src_ina;
+       nd_ipv4         dst_ina;
+       nd_ipv4         nhop_ina;
+       nd_uint16_t     input;          /* SNMP index of input interface */
+       nd_uint16_t     output;         /* SNMP index of output interface */
+       nd_uint32_t     packets;        /* packets in the flow */
+       nd_uint32_t     octets;         /* layer 3 octets in the packets of the flow */
+       nd_uint32_t     start_time;     /* sys_uptime value at start of flow */
+       nd_uint32_t     last_time;      /* sys_uptime value when last packet of flow was received */
+       nd_uint16_t     srcport;        /* TCP/UDP source port or equivalent */
+       nd_uint16_t     dstport;        /* TCP/UDP source port or equivalent */
+       nd_byte         pad1;           /* pad */
+       nd_uint8_t      tcp_flags;      /* cumulative OR of TCP flags */
+       nd_uint8_t      proto;          /* IP protocol type */
+       nd_uint8_t      tos;            /* IP type of service */
+       nd_uint16_t     src_as;         /* AS number of the source */
+       nd_uint16_t     dst_as;         /* AS number of the destination */
+       nd_uint8_t      src_mask;       /* source address mask bits */
+       nd_uint8_t      dst_mask;       /* destination address prefix mask bits */
+       nd_byte         pad2[2];
+       nd_ipv4         peer_nexthop;   /* v6: IP address of the nexthop within the peer (FIB)*/
+};
+
+struct nfhdr_v6 {
+       nd_uint16_t     version;        /* version number */
+       nd_uint16_t     count;          /* # of records */
+       nd_uint32_t     msys_uptime;
+       nd_uint32_t     utc_sec;
+       nd_uint32_t     utc_nsec;
+       nd_uint32_t     sequence;       /* v5 flow sequence number */
+       nd_uint32_t     reserved;       /* v5 only */
+};
+
+struct nfrec_v6 {
+       nd_ipv4         src_ina;
+       nd_ipv4         dst_ina;
+       nd_ipv4         nhop_ina;
+       nd_uint16_t     input;          /* SNMP index of input interface */
+       nd_uint16_t     output;         /* SNMP index of output interface */
+       nd_uint32_t     packets;        /* packets in the flow */
+       nd_uint32_t     octets;         /* layer 3 octets in the packets of the flow */
+       nd_uint32_t     start_time;     /* sys_uptime value at start of flow */
+       nd_uint32_t     last_time;      /* sys_uptime value when last packet of flow was received */
+       nd_uint16_t     srcport;        /* TCP/UDP source port or equivalent */
+       nd_uint16_t     dstport;        /* TCP/UDP source port or equivalent */
+       nd_byte         pad1;           /* pad */
+       nd_uint8_t      tcp_flags;      /* cumulative OR of TCP flags */
+       nd_uint8_t      proto;          /* IP protocol type */
+       nd_uint8_t      tos;            /* IP type of service */
+       nd_uint16_t     src_as;         /* AS number of the source */
+       nd_uint16_t     dst_as;         /* AS number of the destination */
+       nd_uint8_t      src_mask;       /* source address mask bits */
+       nd_uint8_t      dst_mask;       /* destination address prefix mask bits */
+       nd_uint16_t     flags;
+       nd_ipv4         peer_nexthop;   /* v6: IP address of the nexthop within the peer (FIB)*/
+};
+
+static void
+cnfp_v1_print(netdissect_options *ndo, const u_char *cp)

 {
 {

-       register const struct nfhdr *nh;
-       register const struct nfrec *nr;
-       struct protoent *pent;
-       int nrecs, ver;
+       const struct nfhdr_v1 *nh;
+       const struct nfrec_v1 *nr;
+       const char *p_name;
+       uint8_t proto;
+       u_int nrecs, ver;

 #if 0
        time_t t;
 #endif
 
 #if 0
        time_t t;
 #endif
 

-       nh = (const struct nfhdr *)cp;
-       ND_TCHECK(*nh);
+       nh = (const struct nfhdr_v1 *)cp;

 
 

-       nrecs = EXTRACT_32BITS(&nh->ver_cnt) & 0xffff;
-       ver = (EXTRACT_32BITS(&nh->ver_cnt) & 0xffff0000) >> 16;
+       ver = GET_BE_U_2(nh->version);
+       nrecs = GET_BE_U_4(nh->count);

 #if 0
        /*
         * This is seconds since the UN*X epoch, and is followed by
         * nanoseconds.  XXX - format it, rather than just dumping the
         * raw seconds-since-the-Epoch.
         */
 #if 0
        /*
         * This is seconds since the UN*X epoch, and is followed by
         * nanoseconds.  XXX - format it, rather than just dumping the
         * raw seconds-since-the-Epoch.
         */

-       t = EXTRACT_32BITS(&nh->utc_sec);
+       t = GET_BE_U_4(nh->utc_sec);

 #endif
 
 #endif
 

-       ND_PRINT((ndo, "NetFlow v%x, %u.%03u uptime, %u.%09u, ", ver,
-              EXTRACT_32BITS(&nh->msys_uptime)/1000,
-              EXTRACT_32BITS(&nh->msys_uptime)%1000,
-              EXTRACT_32BITS(&nh->utc_sec), EXTRACT_32BITS(&nh->utc_nsec)));
+       ND_PRINT("NetFlow v%x, %u.%03u uptime, %u.%09u, ", ver,
+              GET_BE_U_4(nh->msys_uptime)/1000,
+              GET_BE_U_4(nh->msys_uptime)%1000,
+              GET_BE_U_4(nh->utc_sec), GET_BE_U_4(nh->utc_nsec));

 
 

-       if (ver == 5 || ver == 6) {
-               ND_PRINT((ndo, "#%u, ", EXTRACT_32BITS(&nh->sequence)));
-               nr = (const struct nfrec *)&nh[1];
-       } else
-               nr = (const struct nfrec *)&nh->sequence;
+       nr = (const struct nfrec_v1 *)&nh[1];

 
 

-       ND_PRINT((ndo, "%2u recs", nrecs));
+       ND_PRINT("%2u recs", nrecs);

 
        for (; nrecs != 0; nr++, nrecs--) {
 
        for (; nrecs != 0; nr++, nrecs--) {

-               char buf[20];
-               char asbuf[20];
-
-               /*
-                * Make sure we have the entire record.
-                */
-               if (ver == 5 || ver == 6) {
-                       ND_TCHECK(nr->masks);
-               } else {
-                       ND_TCHECK(nr->proto_tos);
-               }
-               ND_PRINT((ndo, "\n  started %u.%03u, last %u.%03u",
-                      EXTRACT_32BITS(&nr->start_time)/1000,
-                      EXTRACT_32BITS(&nr->start_time)%1000,
-                      EXTRACT_32BITS(&nr->last_time)/1000,
-                      EXTRACT_32BITS(&nr->last_time)%1000));
-
-               asbuf[0] = buf[0] = '\0';
-               if (ver == 5 || ver == 6) {
-                       snprintf(buf, sizeof(buf), "/%u",
-                                (EXTRACT_32BITS(&nr->masks) >> 24) & 0xff);
-                       snprintf(asbuf, sizeof(asbuf), ":%u",
-                                (EXTRACT_32BITS(&nr->asses) >> 16) & 0xffff);
-               }
-               ND_PRINT((ndo, "\n    %s%s%s:%u ", intoa(nr->src_ina.s_addr), buf, asbuf,
-                       EXTRACT_32BITS(&nr->ports) >> 16));
-
-               if (ver == 5 || ver ==6) {
-                       snprintf(buf, sizeof(buf), "/%d",
-                                (EXTRACT_32BITS(&nr->masks) >> 16) & 0xff);
-                       snprintf(asbuf, sizeof(asbuf), ":%u",
-                                EXTRACT_32BITS(&nr->asses) & 0xffff);
+               ND_PRINT("\n  started %u.%03u, last %u.%03u",
+                      GET_BE_U_4(nr->start_time)/1000,
+                      GET_BE_U_4(nr->start_time)%1000,
+                      GET_BE_U_4(nr->last_time)/1000,
+                      GET_BE_U_4(nr->last_time)%1000);
+
+               ND_PRINT("\n    %s:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->src_ina)),
+                       GET_BE_U_2(nr->srcport));
+
+               ND_PRINT("> %s:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->dst_ina)),
+                       GET_BE_U_2(nr->dstport));
+
+               ND_PRINT(">> %s\n    ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->nhop_ina)));
+
+               proto = GET_U_1(nr->proto);
+               if (!ndo->ndo_nflag && (p_name = netdb_protoname(proto)) != NULL)
+                       ND_PRINT("%s ", p_name);
+               else
+                       ND_PRINT("%u ", proto);
+
+               /* tcp flags for tcp only */
+               if (proto == IPPROTO_TCP) {
+                       u_int flags;
+                       flags = GET_U_1(nr->tcp_flags);
+                       if (flags)
+                               ND_PRINT("%s ", bittok2str_nosep(tcp_flag_values, "", flags));

                }
                }

-               ND_PRINT((ndo, "> %s%s%s:%u ", intoa(nr->dst_ina.s_addr), buf, asbuf,
-                       EXTRACT_32BITS(&nr->ports) & 0xffff));

 
 

-               ND_PRINT((ndo, ">> %s\n    ", intoa(nr->nhop_ina.s_addr)));
+               ND_PRINT("tos %u, %u (%u octets)",
+                      GET_U_1(nr->tos),
+                      GET_BE_U_4(nr->packets),
+                      GET_BE_U_4(nr->octets));
+               /* This was not all of struct nfrec_v1. */
+               ND_TCHECK_SIZE(nr);
+       }
+}
+
+static void
+cnfp_v5_print(netdissect_options *ndo, const u_char *cp)
+{
+       const struct nfhdr_v5 *nh;
+       const struct nfrec_v5 *nr;
+       const char *p_name;
+       uint8_t proto;
+       u_int nrecs, ver;
+#if 0
+       time_t t;
+#endif
+
+       nh = (const struct nfhdr_v5 *)cp;
+
+       ver = GET_BE_U_2(nh->version);
+       nrecs = GET_BE_U_4(nh->count);
+#if 0
+       /*
+        * This is seconds since the UN*X epoch, and is followed by
+        * nanoseconds.  XXX - format it, rather than just dumping the
+        * raw seconds-since-the-Epoch.
+        */
+       t = GET_BE_U_4(nh->utc_sec);
+#endif
+
+       ND_PRINT("NetFlow v%x, %u.%03u uptime, %u.%09u, ", ver,
+              GET_BE_U_4(nh->msys_uptime)/1000,
+              GET_BE_U_4(nh->msys_uptime)%1000,
+              GET_BE_U_4(nh->utc_sec), GET_BE_U_4(nh->utc_nsec));
+
+       ND_PRINT("#%u, ", GET_BE_U_4(nh->sequence));
+       /* This was not all of struct nfhdr_v5. */
+       ND_TCHECK_SIZE(nh);
+       nr = (const struct nfrec_v5 *)&nh[1];
+
+       ND_PRINT("%2u recs", nrecs);
+
+       for (; nrecs != 0; nr++, nrecs--) {
+               ND_PRINT("\n  started %u.%03u, last %u.%03u",
+                      GET_BE_U_4(nr->start_time)/1000,
+                      GET_BE_U_4(nr->start_time)%1000,
+                      GET_BE_U_4(nr->last_time)/1000,
+                      GET_BE_U_4(nr->last_time)%1000);

 
 

-               pent = getprotobynumber((EXTRACT_32BITS(&nr->proto_tos) >> 8) & 0xff);
-               if (!pent || ndo->ndo_nflag)
-                       ND_PRINT((ndo, "%u ",
-                              (EXTRACT_32BITS(&nr->proto_tos) >> 8) & 0xff));
+               ND_PRINT("\n    %s/%u:%u:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->src_ina)),
+                       GET_U_1(nr->src_mask), GET_BE_U_2(nr->src_as),
+                       GET_BE_U_2(nr->srcport));
+
+               ND_PRINT("> %s/%u:%u:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->dst_ina)),
+                       GET_U_1(nr->dst_mask), GET_BE_U_2(nr->dst_as),
+                       GET_BE_U_2(nr->dstport));
+
+               ND_PRINT(">> %s\n    ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->nhop_ina)));
+
+               proto = GET_U_1(nr->proto);
+               if (!ndo->ndo_nflag && (p_name = netdb_protoname(proto)) != NULL)
+                       ND_PRINT("%s ", p_name);

                else
                else

-                       ND_PRINT((ndo, "%s ", pent->p_name));
+                       ND_PRINT("%u ", proto);

 
                /* tcp flags for tcp only */
 
                /* tcp flags for tcp only */

-               if (pent && pent->p_proto == IPPROTO_TCP) {
-                       int flags;
-                       if (ver == 1)
-                               flags = (EXTRACT_32BITS(&nr->asses) >> 24) & 0xff;
-                       else
-                               flags = (EXTRACT_32BITS(&nr->proto_tos) >> 16) & 0xff;
-                       ND_PRINT((ndo, "%s%s%s%s%s%s%s",
-                               flags & TH_FIN  ? "F" : "",
-                               flags & TH_SYN  ? "S" : "",
-                               flags & TH_RST  ? "R" : "",
-                               flags & TH_PUSH ? "P" : "",
-                               flags & TH_ACK  ? "A" : "",
-                               flags & TH_URG  ? "U" : "",
-                               flags           ? " " : ""));
+               if (proto == IPPROTO_TCP) {
+                       u_int flags;
+                       flags = GET_U_1(nr->tcp_flags);
+                       if (flags)
+                               ND_PRINT("%s ", bittok2str_nosep(tcp_flag_values, "", flags));

                }
 
                }
 

-               buf[0]='\0';
-               if (ver == 6) {
-                       snprintf(buf, sizeof(buf), "(%u<>%u encaps)",
-                                (EXTRACT_32BITS(&nr->masks) >> 8) & 0xff,
-                                (EXTRACT_32BITS(&nr->masks)) & 0xff);
+               ND_PRINT("tos %u, %u (%u octets)",
+                      GET_U_1(nr->tos),
+                      GET_BE_U_4(nr->packets),
+                      GET_BE_U_4(nr->octets));
+               /* This was not all of struct nfrec_v5. */
+               ND_TCHECK_SIZE(nr);
+       }
+}
+
+static void
+cnfp_v6_print(netdissect_options *ndo, const u_char *cp)
+{
+       const struct nfhdr_v6 *nh;
+       const struct nfrec_v6 *nr;
+       const char *p_name;
+       uint8_t proto;
+       u_int nrecs, ver;
+#if 0
+       time_t t;
+#endif
+
+       nh = (const struct nfhdr_v6 *)cp;
+
+       ver = GET_BE_U_2(nh->version);
+       nrecs = GET_BE_U_4(nh->count);
+#if 0
+       /*
+        * This is seconds since the UN*X epoch, and is followed by
+        * nanoseconds.  XXX - format it, rather than just dumping the
+        * raw seconds-since-the-Epoch.
+        */
+       t = GET_BE_U_4(nh->utc_sec);
+#endif
+
+       ND_PRINT("NetFlow v%x, %u.%03u uptime, %u.%09u, ", ver,
+              GET_BE_U_4(nh->msys_uptime)/1000,
+              GET_BE_U_4(nh->msys_uptime)%1000,
+              GET_BE_U_4(nh->utc_sec), GET_BE_U_4(nh->utc_nsec));
+
+       ND_PRINT("#%u, ", GET_BE_U_4(nh->sequence));
+       /* This was not all of struct nfhdr_v6. */
+       ND_TCHECK_SIZE(nh);
+       nr = (const struct nfrec_v6 *)&nh[1];
+
+       ND_PRINT("%2u recs", nrecs);
+
+       for (; nrecs != 0; nr++, nrecs--) {
+               ND_PRINT("\n  started %u.%03u, last %u.%03u",
+                      GET_BE_U_4(nr->start_time)/1000,
+                      GET_BE_U_4(nr->start_time)%1000,
+                      GET_BE_U_4(nr->last_time)/1000,
+                      GET_BE_U_4(nr->last_time)%1000);
+
+               ND_PRINT("\n    %s/%u:%u:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->src_ina)),
+                       GET_U_1(nr->src_mask), GET_BE_U_2(nr->src_as),
+                       GET_BE_U_2(nr->srcport));
+
+               ND_PRINT("> %s/%u:%u:%u ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->dst_ina)),
+                       GET_U_1(nr->dst_mask), GET_BE_U_2(nr->dst_as),
+                       GET_BE_U_2(nr->dstport));
+
+               ND_PRINT(">> %s\n    ",
+                       intoa(GET_IPV4_TO_NETWORK_ORDER(nr->nhop_ina)));
+
+               proto = GET_U_1(nr->proto);
+               if (!ndo->ndo_nflag && (p_name = netdb_protoname(proto)) != NULL)
+                       ND_PRINT("%s ", p_name);
+               else
+                       ND_PRINT("%u ", proto);
+
+               /* tcp flags for tcp only */
+               if (proto == IPPROTO_TCP) {
+                       u_int flags;
+                       flags = GET_U_1(nr->tcp_flags);
+                       if (flags)
+                               ND_PRINT("%s ", bittok2str_nosep(tcp_flag_values, "", flags));

                }
                }

-               ND_PRINT((ndo, "tos %u, %u (%u octets) %s",
-                      EXTRACT_32BITS(&nr->proto_tos) & 0xff,
-                      EXTRACT_32BITS(&nr->packets),
-                      EXTRACT_32BITS(&nr->octets), buf));
+
+               ND_PRINT("tos %u, %u (%u octets) (%u<>%u encaps)",
+                      GET_U_1(nr->tos),
+                      GET_BE_U_4(nr->packets),
+                      GET_BE_U_4(nr->octets),
+                      (GET_BE_U_2(nr->flags) >> 8) & 0xff,
+                      (GET_BE_U_2(nr->flags)) & 0xff);
+               /* This was not all of struct nfrec_v6. */
+               ND_TCHECK_SIZE(nr);

        }
        }

-       return;
+}

 
 

-trunc:
-       ND_PRINT((ndo, "[|cnfp]"));
-       return;
+void
+cnfp_print(netdissect_options *ndo, const u_char *cp)
+{
+       int ver;
+
+       /*
+        * First 2 bytes are the version number.
+        */
+       ndo->ndo_protocol = "cnfp";
+       ver = GET_BE_U_2(cp);
+       switch (ver) {
+
+       case 1:
+               cnfp_v1_print(ndo, cp);
+               break;
+
+       case 5:
+               cnfp_v5_print(ndo, cp);
+               break;
+
+       case 6:
+               cnfp_v6_print(ndo, cp);
+               break;
+
+       default:
+               ND_PRINT("NetFlow v%x", ver);
+               break;
+       }

 }
 }