Subversion Repositories planix.SVN

#include <u.h>
#include <libc.h>
#include <ip.h>
#include <thread.h>
#include "netbios.h"

static char *
opname(int opcode)
{
        switch (opcode) {
        case NbnsOpQuery: return "query";
        case NbnsOpRegistration: return "registration";
        case NbnsOpRelease: return "release";
        case NbnsOpWack: return "wack";
        case NbnsOpRefresh: return "refresh";
        default:
                return "???";
        }
}

void
nbnsdumpname(NbName name)
{
        int x;
        for (x = 0; x < NbNameLen - 1; x++) {
                if (name[x] == ' ')
                        break;
                print("%c", tolower(name[x]));
        }
        print("\\x%.2ux", name[NbNameLen - 1]);
}

void
nbnsdumpmessagequestion(NbnsMessageQuestion *q)
{
        print("question: ");
        nbnsdumpname(q->name);
        switch (q->type) {
        case NbnsQuestionTypeNb: print(" NB");  break;
        case NbnsQuestionTypeNbStat: print(" NBSTAT"); break;
        default: print(" ???");
        }
        switch (q->class) {
        case NbnsQuestionClassIn: print(" IN"); break;
        default: print(" ???");
        }
        print("\n");
}

void
nbnsdumpmessageresource(NbnsMessageResource *r, char *name)
{
        print("%s: ", name);
        nbnsdumpname(r->name);
        switch (r->type) {
        case NbnsResourceTypeA: print(" A");    break;
        case NbnsResourceTypeNs: print(" NS");  break;
        case NbnsResourceTypeNull: print(" NULL");      break;
        case NbnsResourceTypeNb: print(" NB");  break;
        case NbnsResourceTypeNbStat: print(" NBSTAT"); break;
        default: print(" ???");
        }
        switch (r->class) {
        case NbnsResourceClassIn: print(" IN"); break;
        default: print(" ???");
        }
        print(" ttl: %lud", r->ttl);
        if (r->rdlength) {
                int i;
                print(" rdata: ");
                for (i = 0; i < r->rdlength; i++)
                        print("%.2ux", r->rdata[i]);
        }
        print("\n");
}

void
nbnsdumpmessage(NbnsMessage *s)
{
        NbnsMessageQuestion *q;
        NbnsMessageResource *r;
        print("0x%.4ux %s %s (%d)",
                s->id, opname(s->opcode), s->response ? "response" : "request", s->opcode);
        if (s->broadcast)
                print(" B");
        if (s->recursionavailable)
                print(" RA");
        if (s->recursiondesired)
                print(" RD");
        if (s->truncation)
                print(" TC");
        if (s->authoritativeanswer)
                print(" AA");
        if (s->response)
                print(" rcode %d", s->rcode);
        print("\n");
        for (q = s->q; q; q = q->next)
                nbnsdumpmessagequestion(q);
        for (r = s->an; r; r = r->next)
                nbnsdumpmessageresource(r, "answer");
        for (r = s->ns; r; r = r->next)
                nbnsdumpmessageresource(r, "ns");
        for (r = s->ar; r; r = r->next)
                nbnsdumpmessageresource(r, "additional");
}

void
nbdumpdata(void *ap, long n)
{
        uchar *p = ap;
        long i;
        i = 0;
        while (i < n) {
                int l = n - i < 16 ? n - i : 16;
                int b;
                print("0x%.4lux  ", i);
                for (b = 0; b < l; b += 2) {
                        print(" %.2ux", p[i + b]);
                        if (b < l - 1)
                                print("%.2ux", p[i + b + 1]);
                        else
                                print("  ");
                }
                while (b < 16) {
                        print("     ");
                        b++;
                }
                print("        ");
                for (b = 0; b < l; b++)
                        if (p[i + b] >= ' ' && p[i + b] <= '~')
                                print("%c", p[i + b]);
                        else
                                print(".");
                print("\n");
                i += l;
        }
}