FreeCalypso > hg > freecalypso-tools

annotate rvinterf/tmsh/pktsort.c @ 69:2159f260ed13

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fc-tmsh: all commands internally return values in preparation for adding one-shot mode of operation
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 26 Oct 2016 23:17:03 +0000
parents 21a79f465d6a
children 27c41e4b21ae
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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 #include "exitcodes.h"
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16
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17 extern u_char rvi_msg[];
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18 extern int rvi_msg_len;
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19
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20 static void
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21 print_etm_trace()
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22 {
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23 char buf[MAX_PKT_FROM_TARGET*4];
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24
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25 strcpy(buf, "ETM Tr: ");
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26 safe_print_trace(rvi_msg + 7, rvi_msg_len - 7, buf + 8);
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27 async_msg_output(buf);
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28 }
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30 static void
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31 process_rvt()
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32 {
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33 u32 useid;
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34
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35 if (rvi_msg_len < 7) {
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36 tty_cleanup();
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37 fprintf(stderr, "Error: rvinterf sent us an invalid RVT msg\n");
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38 exit(ERROR_RVINTERF);
0
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39 }
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40 useid = rvi_msg[2] << 24 | rvi_msg[3] << 16 | rvi_msg[4] << 8
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41 | rvi_msg[5];
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42 switch (useid) {
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43 case 0:
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44 handle_useid_0();
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45 return;
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46 case ETM_USE_ID:
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47 print_etm_trace();
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48 return;
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49 default:
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50 tty_cleanup();
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51 fprintf(stderr, "unexpected fwd of USEID %08X from rvinterf\n",
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52 useid);
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53 exit(ERROR_RVINTERF);
0
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54 }
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55 }
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56
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57 void
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58 process_pkt_from_target()
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59 {
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60 switch (rvi_msg[1]) {
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61 case RVT_RV_HEADER:
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62 process_rvt();
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63 return;
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64 case RVT_TM_HEADER:
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65 etm_packet_rx();
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66 return;
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67 default:
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68 tty_cleanup();
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69 fprintf(stderr, "unexpected fwd of MUX %02X from rvinterf\n",
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70 rvi_msg[1]);
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71 exit(ERROR_RVINTERF);
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72 }
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73 }