initial

1 files changed, 166 insertions, 0 deletions

diff --git a/other/b-scan/tmp/src/dcd_icmp.c b/other/b-scan/tmp/src/dcd_icmp.c
new file mode 100644
index 0000000..c627a56
--- /dev/null
+++ b/other/b-scan/tmp/src/dcd_icmp.c
@@ -0,0 +1,166 @@
+/* bscan - icmp decoder
+ *
+ * based on information from
+ *   RFC792 - INTERNET CONTROL MESSAGE PROTOCOL
+ *   RFC950 - Internet Standard Subnetting Procedure
+ *   ??? "ICMP Usage in Scanning" (ICMP_Scanning_v2.5.pdf)
+ */
+
+#include <stdio.h>
+#include <bscan/dcd_icmp.h>
+
+static char *   icmp_echo_reply[] = {
+        "ICMP ECHOREPLY",
+        NULL
+};
+
+static char *   icmp_unreach[] = {
+        "ICMP UNREACH network unreachable",
+        "ICMP UNREACH host unreachable",
+        "ICMP UNREACH protocol unreachable",
+        "ICMP UNREACH port unreachable",
+        "ICMP UNREACH fragmentation needed but don't-fragment bit set",
+        "ICMP UNREACH source route failed",
+        "ICMP UNREACH destination network unknown",
+        "ICMP UNREACH destination host unknown",
+        "ICMP UNREACH source host isolated",
+        "ICMP UNREACH destination network administratively prohibited",
+        "ICMP UNREACH destination host administratively prohibited",
+        "ICMP UNREACH network unreachable for TOS",
+        "ICMP UNREACH host unreachable for TOS",
+        "ICMP UNREACH communication administratively prohibited by filtering",
+        "ICMP UNREACH host precedence violation",
+        "ICMP UNREACH precedence cutoff in effect",
+        NULL
+};
+
+static char *   icmp_quench[] = {
+        "ICMP QUENCH",
+        NULL
+};
+
+static char *   icmp_redirect[] = {
+        "ICMP REDIRECT Redirect datagrams for the Network",
+        "ICMP REDIRECT Redirect datagrams for the Host",
+        "ICMP REDIRECT Redirect datagrams for the Type of Service and Network",
+        "ICMP REDIRECT Redirect datagrams for the Type of Service and Host",
+        NULL
+};
+
+static char *   icmp_alternate[] = {
+        "ICMP ALTERNATEHOSTADDRESS",
+        NULL
+};
+
+static char *   icmp_echo[] = {
+        "ICMP ECHO",
+        NULL
+};
+
+static char *   icmp_routerad[] = {
+        "ICMP ROUTERADVERTISEMENT",
+        NULL
+};
+
+static char *   icmp_routersel[] = {
+        "ICMP ROUTERSELECTION",
+        NULL
+};
+
+static char *   icmp_timeexceed[] = {
+        "ICMP TIMEEXCEED time to live exceeded in transit",
+        "ICMP TIMEEXCEED fragment reassembly time exceeded",
+        NULL
+};
+
+static char *   icmp_parprob[] = {
+        "ICMP PARAMETER pointer indicates the error",
+        "ICMP PARAMETER missing a required option",
+        "ICMP PARAMETER bad length",
+        NULL
+};
+
+static char *   icmp_timestamp[] = {
+        "ICMP TIMESTAMP",
+        NULL
+};
+
+static char *   icmp_timestamp_reply[] = {
+        "ICMP TIMESTAMPREPLY",
+        NULL
+};
+
+static char *   icmp_information[] = {
+        "ICMP INFORMATION",
+        NULL
+};
+
+static char *   icmp_information_reply[] = {
+        "ICMP INFORMATIONREPLY",
+        NULL
+};
+
+static char *   icmp_addressmask[] = {
+        "ICMP ADDRESSMASK",
+        NULL
+};
+
+static char *   icmp_addressmask_reply[] = {
+        "ICMP ADDRESSMASKREPLY",
+        NULL
+};
+
+static char *   icmp_ERR[] = {
+        "ICMP invalid code",
+        NULL
+};
+
+struct icmp_typeelem {
+        int             count;
+        char **         tab;
+};
+
+struct icmp_typeelem    icmp_tab[] = {
+        {  1, icmp_echo_reply },        /*  0  Echo Reply */
+        {  0, icmp_ERR },               /*  1  UNUSED */
+        {  0, icmp_ERR },               /*  2  UNUSED */
+        { 16, icmp_unreach },           /*  3  Destination Unreachable */
+        {  1, icmp_quench },            /*  4  Source Quench */
+        {  4, icmp_redirect },          /*  5  Redirect */
+        {  1, icmp_alternate },         /*  6  Alternate Host Address */
+        {  0, icmp_ERR },               /*  7  UNUSED */
+        {  1, icmp_echo },              /*  8  Echo */
+        {  1, icmp_routerad },          /*  9  Router Advertisement */
+        {  1, icmp_routersel },         /* 10  Router Selection */
+        {  2, icmp_timeexceed },        /* 11  Time Exceeded */
+        {  3, icmp_parprob },           /* 12  Parameter Problem */
+        {  1, icmp_timestamp },         /* 13  Timestamp */
+        {  1, icmp_timestamp_reply },   /* 14  Timestamp Reply */
+        {  1, icmp_information },       /* 15  Information Request */
+        {  1, icmp_information_reply }, /* 16  Information Request */
+        {  1, icmp_addressmask },       /* 17  RFC950: Address Mask Request */
+        {  1, icmp_addressmask_reply }, /* 18  RFC950: Address Mask Reply */
+        {  0, NULL },   /* EOList */ 
+};
+
+int     icmp_type_max = (sizeof (icmp_tab) / sizeof (struct icmp_typeelem)) - 1;
+
+const char *
+icmp_str (int type, int code)
+{
+        struct icmp_typeelem *  it;
+
+        if (type < 0 || type >= icmp_type_max)
+                return ("ICMP invalid type");
+
+        it = &icmp_tab[type];
+        if (it->count == 0)
+                return (it->tab[0]);
+
+        if (code < 0 || code >= it->count)
+                return ("ICMP invalid code");
+
+        return (it->tab[code]);
+}
+
+