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annotate rvinterf/tmsh/pktsort.c @ 1034:405b5469abc4 default tip

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author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 12 Jun 2016 19:06:34 +0000
parents a26470040d89
children
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1 /*
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2 * Here we sort out incoming packets from the target relayed via rvinterf.
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <string.h>
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8 #include <strings.h>
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9 #include <stdlib.h>
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10 #include "pktmux.h"
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11 #include "limits.h"
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12 #include "localsock.h"
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13 #include "localtypes.h"
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14 #include "etm.h"
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15
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16 extern u_char rvi_msg[];
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17 extern int rvi_msg_len;
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18
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19 static void
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20 print_etm_trace()
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21 {
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22 char buf[MAX_PKT_FROM_TARGET*4];
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23
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24 strcpy(buf, "ETM Tr: ");
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25 safe_print_trace(rvi_msg + 7, rvi_msg_len - 7, buf + 8);
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26 async_msg_output(buf);
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27 }
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28
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29 static void
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30 process_rvt()
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31 {
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32 u32 useid;
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33
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34 if (rvi_msg_len < 7) {
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35 tty_cleanup();
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36 fprintf(stderr, "Error: rvinterf sent us an invalid RVT msg\n");
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37 exit(1);
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38 }
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39 useid = rvi_msg[2] << 24 | rvi_msg[3] << 16 | rvi_msg[4] << 8
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40 | rvi_msg[5];
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41 switch (useid) {
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42 case 0:
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43 handle_useid_0();
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44 return;
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45 case ETM_USE_ID:
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46 print_etm_trace();
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47 return;
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48 default:
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49 tty_cleanup();
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50 fprintf(stderr, "unexpected fwd of USEID %08X from rvinterf\n",
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51 useid);
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52 exit(1);
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53 }
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54 }
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55
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56 void
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57 process_pkt_from_target()
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58 {
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59 switch (rvi_msg[1]) {
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60 case RVT_RV_HEADER:
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61 process_rvt();
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62 return;
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63 case RVT_TM_HEADER:
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64 etm_packet_rx();
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65 return;
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66 default:
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67 tty_cleanup();
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68 fprintf(stderr, "unexpected fwd of MUX %02X from rvinterf\n",
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69 rvi_msg[1]);
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70 exit(1);
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71 }
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72 }