FreeCalypso > hg > freecalypso-tools
annotate rvinterf/l1filter/pktsort.c @ 984:cec20c461b3a
target-utils/pln-ppb-test: skeleton started
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 02 Dec 2023 23:20:07 +0000 |
parents | ea458ee48691 |
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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 "exitcodes.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 extern char **filter_list; |
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19 |
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20 static |
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21 is_filter_match() |
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22 { |
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23 char **fp; |
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24 int len; |
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25 |
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26 for (fp = filter_list; *fp; fp++) { |
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27 len = strlen(*fp); |
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28 if (rvi_msg_len < len + 3) |
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29 continue; |
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30 if (strncmp(rvi_msg + 2, *fp, len)) |
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31 continue; |
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32 if (rvi_msg[len+2] != ' ') |
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33 continue; |
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34 return 1; |
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35 } |
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36 return 0; |
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37 } |
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38 |
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39 static void |
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40 print_l1_trace() |
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41 { |
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42 u_char *dp, *endp; |
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43 int c, newline; |
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44 |
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45 dp = rvi_msg + 2; |
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46 endp = rvi_msg + rvi_msg_len; |
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47 while (dp < endp) { |
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48 c = *dp++; |
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49 if (c == '\r') |
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50 continue; |
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51 if (c == '\n') { |
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52 putchar(c); |
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53 newline = 1; |
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54 continue; |
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55 } |
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56 newline = 0; |
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57 if (c & 0x80) { |
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58 putchar('M'); |
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59 putchar('-'); |
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60 c &= 0x7F; |
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61 } |
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62 if (c == 0x7F) { |
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63 putchar('^'); |
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64 putchar('?'); |
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65 continue; |
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66 } |
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67 if (c < 0x20) { |
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68 putchar('^'); |
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69 c += '@'; |
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70 } |
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71 putchar(c); |
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72 } |
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73 if (!newline) |
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74 putchar('\n'); |
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75 } |
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76 |
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77 static void |
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78 l1_packet_rx() |
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79 { |
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80 if (is_filter_match()) |
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81 print_l1_trace(); |
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82 } |
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83 |
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84 void |
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85 process_pkt_from_target() |
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86 { |
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87 switch (rvi_msg[1]) { |
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88 case RVT_L1_HEADER: |
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89 l1_packet_rx(); |
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90 return; |
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91 default: |
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92 fprintf(stderr, "unexpected fwd of MUX %02X from rvinterf\n", |
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93 rvi_msg[1]); |
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94 exit(ERROR_RVINTERF); |
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95 } |
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96 } |