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364 | giacomo | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
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10 | * (see the web pages for full authors list) |
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11 | * |
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12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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13 | * |
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14 | * http://www.sssup.it |
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15 | * http://retis.sssup.it |
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16 | * http://shark.sssup.it |
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17 | */ |
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18 | |||
19 | /* |
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20 | * Copyright (C) 2002 Paolo Gai |
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21 | * |
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22 | * This program is free software; you can redistribute it and/or modify |
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23 | * it under the terms of the GNU General Public License as published by |
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24 | * the Free Software Foundation; either version 2 of the License, or |
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25 | * (at your option) any later version. |
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26 | * |
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27 | * This program is distributed in the hope that it will be useful, |
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28 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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30 | * GNU General Public License for more details. |
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31 | * |
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32 | * You should have received a copy of the GNU General Public License |
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33 | * along with this program; if not, write to the Free Software |
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34 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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35 | * |
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36 | */ |
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37 | |||
38 | #include <ll/sys/types.h> |
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39 | #include <stdlib.h> |
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365 | giacomo | 40 | #include <tracer.h> |
364 | giacomo | 41 | |
365 | giacomo | 42 | #include <drivers/udpip.h> |
43 | |||
364 | giacomo | 44 | #define UDP_MAXSIZE 1400 |
365 | giacomo | 45 | #define TRACER_PORT 100 |
364 | giacomo | 46 | |
365 | giacomo | 47 | int TracerUDPInit = 0; |
48 | UDP_ADDR target,local; |
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49 | int socket; |
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50 | |||
51 | extern int TracerOutputType; |
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52 | |||
364 | giacomo | 53 | struct tracer_udp_header { |
54 | char id[12]; |
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55 | unsigned int pkt_number; |
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56 | unsigned int number_of_events; |
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57 | unsigned int total_size; |
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58 | }; |
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59 | |||
365 | giacomo | 60 | int init_tracer_udp(char *local_ip, char *target_ip) { |
61 | |||
62 | SYS_FLAGS f; |
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63 | |||
64 | f = ll_fsave(); |
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65 | |||
66 | ip_str2addr(local_ip,&(local.s_addr)); |
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67 | local.s_port = TRACER_PORT; |
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68 | socket = udp_bind(&local, NULL); |
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69 | |||
70 | ip_str2addr(target_ip,&(target.s_addr)); |
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71 | target.s_port = TRACER_PORT; |
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72 | |||
73 | TracerOutputType = TRACER_UDP_OUTPUT; |
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74 | TracerUDPInit = 1; |
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75 | |||
76 | ll_frestore(f); |
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77 | |||
78 | return 0; |
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79 | |||
80 | } |
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81 | |||
364 | giacomo | 82 | int send_udp_event(void *p, int size) { |
83 | |||
84 | static BYTE pkt[UDP_MAXSIZE]; |
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85 | static BYTE *current = pkt; |
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86 | static int total_pkt_size = 0; |
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87 | static int events_number = 0; |
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88 | static int packet_number = 0; |
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89 | |||
90 | struct tracer_udp_header head = {"TRACER-V1.0",0,0,0}; |
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91 | struct tracer_udp_header *phead = (struct tracer_udp_header *)(pkt); |
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92 | |||
93 | if (total_pkt_size + size < UDP_MAXSIZE) { |
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94 | |||
95 | if (total_pkt_size == 0) { |
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96 | |||
97 | memcpy(pkt,&head,sizeof(struct tracer_udp_header)); |
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98 | |||
99 | current = pkt; |
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100 | current += sizeof(struct tracer_udp_header); |
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101 | |||
102 | total_pkt_size += sizeof(struct tracer_udp_header); |
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103 | phead->total_size = total_pkt_size; |
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104 | |||
105 | packet_number++; |
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106 | phead->pkt_number = packet_number; |
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107 | |||
108 | } |
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109 | |||
110 | events_number++; |
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111 | phead->number_of_events = events_number; |
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112 | |||
113 | total_pkt_size += size; |
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114 | phead->total_size = total_pkt_size; |
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115 | |||
116 | //Copy the event |
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117 | memcpy(current,p,size); |
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118 | current += size; |
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119 | |||
120 | return 0; |
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121 | |||
122 | } else { |
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123 | |||
365 | giacomo | 124 | udp_sendto(socket, pkt, total_pkt_size, &target); |
364 | giacomo | 125 | |
126 | events_number = 0; |
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127 | total_pkt_size = 0; |
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128 | current = pkt; |
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129 | |||
130 | send_udp_event(p,size); |
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131 | |||
365 | giacomo | 132 | return 0; |
364 | giacomo | 133 | |
134 | } |
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135 | |||
136 | return -1; |
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137 | |||
138 | } |