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authorDavid Brodski <david@brodski.eu>2011-04-05 09:02:16 +0000
committerDavid Brodski <david@brodski.eu>2011-04-05 09:02:16 +0000
commit71e79d72a1da156a1bde9b3346e40f7a7f547f26 (patch)
treeb1bedd9856c58460e45ee6ae0af930856f03a8d5 /src/transport/plugin_transport_wlan.c
parentb64c94d386f0fa6a057c96cf3906a24a39f27b2e (diff)
downloadgnunet-71e79d72a1da156a1bde9b3346e40f7a7f547f26.tar.gz
gnunet-71e79d72a1da156a1bde9b3346e40f7a7f547f26.zip
Some fixes
Diffstat (limited to 'src/transport/plugin_transport_wlan.c')
-rw-r--r--src/transport/plugin_transport_wlan.c452
1 files changed, 202 insertions, 250 deletions
diff --git a/src/transport/plugin_transport_wlan.c b/src/transport/plugin_transport_wlan.c
index 124934b3c..a2e9bbe60 100644
--- a/src/transport/plugin_transport_wlan.c
+++ b/src/transport/plugin_transport_wlan.c
@@ -36,6 +36,8 @@
36#include "gnunet_crypto_lib.h" 36#include "gnunet_crypto_lib.h"
37#include "wlan/ieee80211.h" 37#include "wlan/ieee80211.h"
38 38
39#include <string.h>
40
39#define PROTOCOL_PREFIX "wlan" 41#define PROTOCOL_PREFIX "wlan"
40 42
41/** 43/**
@@ -281,6 +283,7 @@ struct Receive_Fragment_Queue
281 uint16_t num; 283 uint16_t num;
282 const char * msg; 284 const char * msg;
283 uint16_t size; 285 uint16_t size;
286 struct Radiotap_rx rxinfo;
284}; 287};
285 288
286/** 289/**
@@ -544,56 +547,6 @@ struct FragmentMessage
544/** 547/**
545 * Header for messages which need fragmentation 548 * Header for messages which need fragmentation
546 */ 549 */
547struct WlanHeader
548{
549
550 struct GNUNET_MessageHeader header;
551
552 /**
553 * checksum/error correction
554 */
555 uint32_t crc GNUNET_PACKED;
556
557 /**
558 * To whom are we talking to (set to our identity
559 * if we are still waiting for the welcome message)
560 */
561 struct GNUNET_PeerIdentity target;
562
563// followed by payload
564
565};
566
567/**
568 * Header for messages which need fragmentation
569 */
570struct FragmentationHeader
571{
572
573 struct GNUNET_MessageHeader header;
574
575 /**
576 * ID of message, to distinguish between the messages, picked randomly.
577 */
578 uint32_t message_id GNUNET_PACKED;
579
580 /**
581 * Offset or number of this fragment, for fragmentation/segmentation (design choice, TBD)
582 */
583 uint16_t fragment_off_or_num GNUNET_PACKED;
584
585 /**
586 * CRC of fragment (for error checking)
587 */
588 uint16_t message_crc GNUNET_PACKED;
589
590// followed by payload
591
592};
593
594/**
595 * Header for messages which need fragmentation
596 */
597struct FragmentationAckHeader 550struct FragmentationAckHeader
598{ 551{
599 552
@@ -636,7 +589,7 @@ getcrc32(const char *msgbuf, size_t msgbuf_size);
636 589
637static void 590static void
638free_receive_message(struct Plugin* plugin, 591free_receive_message(struct Plugin* plugin,
639 struct Receive_Message_Queue * rec_message); 592 struct Receive_Message_Queue * rx_message);
640 593
641struct Receive_Message_Queue * 594struct Receive_Message_Queue *
642get_receive_message_from_session(struct Plugin * plugin, 595get_receive_message_from_session(struct Plugin * plugin,
@@ -644,7 +597,7 @@ get_receive_message_from_session(struct Plugin * plugin,
644 597
645static void 598static void
646wlan_data_helper(void *cls, struct Session_light * session_light, 599wlan_data_helper(void *cls, struct Session_light * session_light,
647 const struct GNUNET_MessageHeader * hdr); 600 const struct GNUNET_MessageHeader * hdr, const struct Radiotap_rx * rxinfo);
648 601
649static void 602static void
650wlan_process_helper(void *cls, void *client, 603wlan_process_helper(void *cls, void *client,
@@ -994,10 +947,10 @@ check_next_fragment_timeout(struct Plugin * const plugin)
994 { 947 {
995 next_send = GNUNET_TIME_absolute_get_remaining(plugin->beacon_time); 948 next_send = GNUNET_TIME_absolute_get_remaining(plugin->beacon_time);
996 if (fm != NULL) 949 if (fm != NULL)
997 { 950 {
998 next_send 951 next_send = GNUNET_TIME_relative_min(next_send,
999 = GNUNET_TIME_relative_min(next_send, get_next_frag_timeout(fm)); 952 get_next_frag_timeout(fm));
1000 } 953 }
1001 } 954 }
1002 plugin->server_write_delay_task = GNUNET_SCHEDULER_add_delayed(next_send, 955 plugin->server_write_delay_task = GNUNET_SCHEDULER_add_delayed(next_send,
1003 &delay_fragment_task, plugin); 956 &delay_fragment_task, plugin);
@@ -1624,15 +1577,18 @@ getRadiotapHeader(struct Plugin * plugin, struct Session * session,
1624 struct Radiotap_Send * header) 1577 struct Radiotap_Send * header)
1625{ 1578{
1626 1579
1627 if (session != NULL){ 1580 if (session != NULL)
1628 header->rate = session->rate; 1581 {
1629 header->tx_power = session->tx_power; 1582 header->rate = session->rate;
1630 header->antenna = session->antenna; 1583 header->tx_power = session->tx_power;
1631 } else { 1584 header->antenna = session->antenna;
1632 header->rate = 255; 1585 }
1633 header->tx_power = 0; 1586 else
1634 header->antenna = 0; 1587 {
1635 } 1588 header->rate = 255;
1589 header->tx_power = 0;
1590 header->antenna = 0;
1591 }
1636 1592
1637 return GNUNET_YES; 1593 return GNUNET_YES;
1638} 1594}
@@ -1650,6 +1606,8 @@ int
1650getWlanHeader(struct ieee80211_frame * Header, const char * const to_mac_addr, 1606getWlanHeader(struct ieee80211_frame * Header, const char * const to_mac_addr,
1651 struct Plugin * plugin) 1607 struct Plugin * plugin)
1652{ 1608{
1609 Header->i_fc[0] = 0x80;
1610 Header->i_fc[1] = 0x00;
1653 memcpy(&Header->i_addr3, mac_bssid, sizeof(mac_bssid)); 1611 memcpy(&Header->i_addr3, mac_bssid, sizeof(mac_bssid));
1654 memcpy(&Header->i_addr2, plugin->mac_address.mac, sizeof(plugin->mac_address)); 1612 memcpy(&Header->i_addr2, plugin->mac_address.mac, sizeof(plugin->mac_address));
1655 memcpy(&Header->i_addr1, to_mac_addr, sizeof(plugin->mac_address)); 1613 memcpy(&Header->i_addr1, to_mac_addr, sizeof(plugin->mac_address));
@@ -2020,25 +1978,20 @@ wlan_plugin_address_suggested(void *cls, const void *addr, size_t addrlen)
2020 * @return string representing the same address 1978 * @return string representing the same address
2021 */ 1979 */
2022static const char* 1980static const char*
2023wlan_plugin_address_to_string (void *cls, 1981wlan_plugin_address_to_string(void *cls, const void *addr, size_t addrlen)
2024 const void *addr,
2025 size_t addrlen)
2026{ 1982{
2027 static char ret[40]; 1983 static char ret[40];
2028 const struct MacAddress *mac; 1984 const struct MacAddress *mac;
2029 1985
2030 if (addrlen != sizeof (struct MacAddress)) 1986 if (addrlen != sizeof(struct MacAddress))
2031 { 1987 {
2032 GNUNET_break (0); 1988 GNUNET_break (0);
2033 return NULL; 1989 return NULL;
2034 } 1990 }
2035 mac = addr; 1991 mac = addr;
2036 GNUNET_snprintf(ret, sizeof(ret), 1992 GNUNET_snprintf(ret, sizeof(ret), "%s Mac-Address %X:%X:%X:%X:%X:%X",
2037 "%s Mac-Address %X:%X:%X:%X:%X:%X", 1993 PROTOCOL_PREFIX, mac->mac[0], mac->mac[1], mac->mac[2], mac->mac[3],
2038 PROTOCOL_PREFIX, 1994 mac->mac[4], mac->mac[5]);
2039 mac->mac[0], mac->mac[1],
2040 mac->mac[2], mac->mac[3],
2041 mac->mac[4], mac->mac[5]);
2042 return ret; 1995 return ret;
2043} 1996}
2044 1997
@@ -2133,10 +2086,10 @@ insert_fragment_in_queue(struct Receive_Message_Queue * rec_message,
2133 2086
2134static void 2087static void
2135free_receive_message(struct Plugin* plugin, 2088free_receive_message(struct Plugin* plugin,
2136 struct Receive_Message_Queue * rec_message) 2089 struct Receive_Message_Queue * rx_message)
2137{ 2090{
2138 GNUNET_assert(rec_message !=NULL); 2091 GNUNET_assert(rx_message !=NULL);
2139 struct Receive_Fragment_Queue * rec_queue = rec_message->frag_head; 2092 struct Receive_Fragment_Queue * rec_queue = rx_message->frag_head;
2140 struct Receive_Fragment_Queue * rec_queue2; 2093 struct Receive_Fragment_Queue * rec_queue2;
2141 2094
2142 while (rec_queue != NULL) 2095 while (rec_queue != NULL)
@@ -2146,14 +2099,14 @@ free_receive_message(struct Plugin* plugin,
2146 GNUNET_free(rec_queue2); 2099 GNUNET_free(rec_queue2);
2147 } 2100 }
2148 2101
2149 GNUNET_CONTAINER_DLL_remove(plugin->receive_messages_head,plugin->receive_messages_teil, rec_message); 2102 GNUNET_CONTAINER_DLL_remove(plugin->receive_messages_head,plugin->receive_messages_teil, rx_message);
2150 2103
2151 GNUNET_assert(plugin->pending_receive_messages > 0); 2104 GNUNET_assert(plugin->pending_receive_messages > 0);
2152 GNUNET_assert(rec_message->session->fragment_messages_in_count > 0); 2105 GNUNET_assert(rx_message->session->fragment_messages_in_count > 0);
2153 2106
2154 plugin->pending_receive_messages--; 2107 plugin->pending_receive_messages--;
2155 rec_message->session->fragment_messages_in_count--; 2108 rx_message->session->fragment_messages_in_count--;
2156 GNUNET_free(rec_message); 2109 GNUNET_free(rx_message);
2157} 2110}
2158 2111
2159/** 2112/**
@@ -2167,12 +2120,12 @@ free_receive_message(struct Plugin* plugin,
2167static void 2120static void
2168check_rec_finished_msg(struct Plugin* plugin, 2121check_rec_finished_msg(struct Plugin* plugin,
2169 struct Session_light * session_light, struct Session * session, 2122 struct Session_light * session_light, struct Session * session,
2170 struct Receive_Message_Queue * rec_message) 2123 struct Receive_Message_Queue * rx_message)
2171{ 2124{
2172 GNUNET_assert(rec_message !=NULL); 2125 GNUNET_assert(rx_message !=NULL);
2173 2126
2174 struct Receive_Fragment_Queue * rec_queue = rec_message->frag_head; 2127 struct Receive_Fragment_Queue * rx_frag = rx_message->frag_head;
2175 int packetsize = rec_message->rec_size; 2128 int packetsize = rx_message->rec_size;
2176 int sum = 0; 2129 int sum = 0;
2177 int aktnum = 0; 2130 int aktnum = 0;
2178 uint64_t bitfield = 0; 2131 uint64_t bitfield = 0;
@@ -2188,56 +2141,60 @@ check_rec_finished_msg(struct Plugin* plugin,
2188 + sizeof(struct GNUNET_MessageHeader)) 2141 + sizeof(struct GNUNET_MessageHeader))
2189 { 2142 {
2190#if DEBUG_wlan 2143#if DEBUG_wlan
2191 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, 2144 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Message not big enough\n");
2192 "Message not big enough\n");
2193#endif 2145#endif
2194 free_receive_message(plugin, rec_message); 2146 free_receive_message(plugin, rx_message);
2195 return; 2147 return;
2196 } 2148 }
2197 2149
2198#if DEBUG_wlan 2150#if DEBUG_wlan
2199 check_message_fragment_bitfield(rec_message); 2151 check_message_fragment_bitfield(rx_message);
2200#endif 2152#endif
2201 2153
2202 bitfield = ~bitfield; 2154 if (rx_message->frag_tail->num == ffsl(rx_message->received_fragments))
2203 bitfield = bitfield >> (63 - rec_message->frag_tail->num);
2204 if (rec_message->received_fragments == bitfield)
2205 { 2155 {
2206 2156 bitfield = ~bitfield;
2207 while (rec_queue != NULL) 2157 bitfield = bitfield << (63 - ffsl(rx_message->received_fragments));
2208 { 2158 if (rx_message->received_fragments == bitfield)
2209 sum += rec_queue->size;
2210 rec_queue = rec_queue->next;
2211 }
2212 //sum should always be smaller or equal of
2213 GNUNET_assert(sum <= packetsize);
2214 if (sum == packetsize)
2215 { 2159 {
2216 2160
2161 while (rx_frag != NULL)
2162 {
2163 sum += rx_frag->size;
2164 rx_frag = rx_frag->next;
2165 }
2166 //sum should always be smaller or equal of
2167 GNUNET_assert(sum <= packetsize);
2168 if (sum == packetsize)
2169 {
2170
2217#if DEBUG_wlan 2171#if DEBUG_wlan
2218 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, 2172 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
2219 "check_rec_finished_msg: A message for %p is complete\n", session); 2173 "check_rec_finished_msg: A message for %p is complete\n",
2174 session);
2220#endif 2175#endif
2221 2176
2222 //TODO use mst 2177 //TODO use mst
2223 //copy fragments together 2178 //copy fragments together
2224 msg = GNUNET_malloc(packetsize); 2179 msg = GNUNET_malloc(packetsize);
2225 rec_queue = rec_message->frag_head; 2180 rx_frag = rx_message->frag_head;
2226 aktnum = 0; 2181 aktnum = 0;
2227 while (rec_queue != NULL) 2182 while (rx_frag != NULL)
2228 { 2183 {
2229 //TODO SAVE SOME COPY OPS AND CHECK CRC WITHOUT COPY 2184 //TODO SAVE SOME COPY OPS AND CHECK CRC WITHOUT COPY
2230 memcpy(msg + aktnum, rec_queue->msg, rec_queue->size); 2185 memcpy(msg + aktnum, rx_frag->msg, rx_frag->size);
2231 aktnum += rec_queue->size; 2186 aktnum += rx_frag->size;
2232 rec_queue = rec_queue->next; 2187 rx_frag = rx_frag->next;
2233 } 2188 }
2234 free_receive_message(plugin, rec_message); 2189
2235 //call wlan_process_helper to process the message 2190 free_receive_message(plugin, rx_message);
2236 wlan_data_massage_handler(plugin, session_light, 2191 //call wlan_process_helper to process the message
2237 (struct GNUNET_MessageHeader*) msg); 2192 wlan_data_massage_handler(plugin, session_light,
2238 //wlan_data_helper (plugin, session_light, (struct GNUNET_MessageHeader*) msg); 2193 (struct GNUNET_MessageHeader*) msg);
2194 //wlan_data_helper (plugin, session_light, (struct GNUNET_MessageHeader*) msg);
2239 2195
2240 GNUNET_free(msg); 2196 GNUNET_free(msg);
2197 }
2241 } 2198 }
2242 } 2199 }
2243} 2200}
@@ -2476,10 +2433,10 @@ get_receive_message_from_session(struct Plugin * plugin,
2476uint64_t 2433uint64_t
2477insert_fragment_in_in_message_queue(struct Plugin * plugin, 2434insert_fragment_in_in_message_queue(struct Plugin * plugin,
2478 struct Session_light * session_light, struct Session * session, 2435 struct Session_light * session_light, struct Session * session,
2479 struct FragmentationHeader * fh) 2436 struct FragmentationHeader * fh, const struct Radiotap_rx * rxinfo)
2480{ 2437{
2481 struct Receive_Fragment_Queue * rec_queue = NULL; 2438 struct Receive_Fragment_Queue * rx_frag = NULL;
2482 struct Receive_Message_Queue * rec_message; 2439 struct Receive_Message_Queue * rx_message;
2483 const char * tempmsg = (char*) &fh[1]; 2440 const char * tempmsg = (char*) &fh[1];
2484 uint64_t retval = 0; 2441 uint64_t retval = 0;
2485 2442
@@ -2487,23 +2444,23 @@ insert_fragment_in_in_message_queue(struct Plugin * plugin,
2487 //check if message_id is right or it is a new msg 2444 //check if message_id is right or it is a new msg
2488 GNUNET_assert(fh != NULL); 2445 GNUNET_assert(fh != NULL);
2489 2446
2490 rec_message = get_receive_message(plugin, session, ntohs(fh->message_id)); 2447 rx_message = get_receive_message(plugin, session, ntohs(fh->message_id));
2491 2448
2492 if (rec_message == NULL) 2449 if (rx_message == NULL)
2493 { 2450 {
2494 if (session->fragment_messages_in_count < MESSAGES_IN_QUEUE_PER_SESSION) 2451 if (session->fragment_messages_in_count < MESSAGES_IN_QUEUE_PER_SESSION)
2495 { 2452 {
2496 2453
2497 //new message incoming 2454 //new message incoming
2498 rec_message = GNUNET_malloc(sizeof (struct Receive_Message_Queue)); 2455 rx_message = GNUNET_malloc(sizeof (struct Receive_Message_Queue));
2499 rec_message->message_id_in = ntohs(fh->message_id); 2456 rx_message->message_id_in = ntohs(fh->message_id);
2500 rec_message->rec_size = MESSAGE_LENGHT_UNKNOWN; 2457 rx_message->rec_size = MESSAGE_LENGHT_UNKNOWN;
2501 rec_message->session = session; 2458 rx_message->session = session;
2502 rec_message->timeout = GNUNET_TIME_absolute_add( 2459 rx_message->timeout = GNUNET_TIME_absolute_add(
2503 GNUNET_TIME_absolute_get(), MESSAGE_IN_TIMEOUT); 2460 GNUNET_TIME_absolute_get(), MESSAGE_IN_TIMEOUT);
2504 rec_message->received_fragments = 0; 2461 rx_message->received_fragments = 0;
2505 2462
2506 GNUNET_CONTAINER_DLL_insert(plugin->receive_messages_head, plugin->receive_messages_teil, rec_message); 2463 GNUNET_CONTAINER_DLL_insert(plugin->receive_messages_head, plugin->receive_messages_teil, rx_message);
2507 2464
2508 session->fragment_messages_in_count++; 2465 session->fragment_messages_in_count++;
2509 plugin->pending_receive_messages++; 2466 plugin->pending_receive_messages++;
@@ -2512,7 +2469,7 @@ insert_fragment_in_in_message_queue(struct Plugin * plugin,
2512 GNUNET_log( 2469 GNUNET_log(
2513 GNUNET_ERROR_TYPE_DEBUG, 2470 GNUNET_ERROR_TYPE_DEBUG,
2514 "New fragmented message started: message id %u, messages in for this session %u, messages in %u\n", 2471 "New fragmented message started: message id %u, messages in for this session %u, messages in %u\n",
2515 rec_message->message_id_in, session->fragment_messages_in_count, 2472 rx_message->message_id_in, session->fragment_messages_in_count,
2516 plugin->pending_receive_messages); 2473 plugin->pending_receive_messages);
2517#endif 2474#endif
2518 } 2475 }
@@ -2527,36 +2484,37 @@ insert_fragment_in_in_message_queue(struct Plugin * plugin,
2527 } 2484 }
2528 } 2485 }
2529 2486
2530 if (is_double_msg(rec_message, fh) != GNUNET_YES) 2487 if (is_double_msg(rx_message, fh) != GNUNET_YES)
2531 { 2488 {
2532 2489
2533 //report size 2490 //report size
2534 rec_queue = GNUNET_malloc(sizeof (struct Receive_Fragment_Queue) + 2491 rx_frag = GNUNET_malloc(sizeof (struct Receive_Fragment_Queue) +
2535 ntohs(fh->header.size) - sizeof(struct FragmentationHeader)); 2492 ntohs(fh->header.size) - sizeof(struct FragmentationHeader));
2536 rec_queue->size = ntohs(fh->header.size) 2493 rx_frag->size = ntohs(fh->header.size)
2537 - sizeof(struct FragmentationHeader); 2494 - sizeof(struct FragmentationHeader);
2538 rec_queue->num = ntohs(fh->fragment_off_or_num); 2495 rx_frag->num = ntohs(fh->fragment_off_or_num);
2539 rec_queue->msg = (char*) &(rec_queue[1]); 2496 rx_frag->msg = (char*) &(rx_frag[1]);
2540 //copy msg to buffer 2497 //copy msg to buffer
2541 memcpy((char *) rec_queue->msg, tempmsg, rec_queue->size); 2498 memcpy((char *) rx_frag->msg, tempmsg, rx_frag->size);
2542 insert_fragment_in_queue(rec_message, rec_queue); 2499 memcpy((char *) &(rx_frag->rxinfo), rxinfo, sizeof(rxinfo));
2500 insert_fragment_in_queue(rx_message, rx_frag);
2543 //save bitfield 2501 //save bitfield
2544 retval = rec_message->received_fragments; 2502 retval = rx_message->received_fragments;
2545 2503
2546#if DEBUG_wlan 2504#if DEBUG_wlan
2547 GNUNET_log( 2505 GNUNET_log(
2548 GNUNET_ERROR_TYPE_DEBUG, 2506 GNUNET_ERROR_TYPE_DEBUG,
2549 "New fragment: size %u, fragsize %u, message id %u, bitfield %X, session %u\n", 2507 "New fragment: size %u, fragsize %u, message id %u, bitfield %X, session %u\n",
2550 rec_message->rec_size, rec_queue->size, 2508 rx_message->rec_size, rx_frag->size, rx_message->received_fragments,
2551 rec_message->received_fragments, rec_message->message_id_in, session); 2509 rx_message->message_id_in, session);
2552#endif 2510#endif
2553 2511
2554 check_rec_finished_msg(plugin, session_light, session, rec_message); 2512 check_rec_finished_msg(plugin, session_light, session, rx_message);
2555 } 2513 }
2556 else 2514 else
2557 { 2515 {
2558 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "WLAN fragment is a clone\n"); 2516 GNUNET_log(GNUNET_ERROR_TYPE_INFO, "WLAN fragment is a clone\n");
2559 retval = rec_message->received_fragments; 2517 retval = rx_message->received_fragments;
2560 2518
2561 } 2519 }
2562 return retval; 2520 return retval;
@@ -2572,7 +2530,7 @@ insert_fragment_in_in_message_queue(struct Plugin * plugin,
2572 */ 2530 */
2573static void 2531static void
2574wlan_data_helper(void *cls, struct Session_light * session_light, 2532wlan_data_helper(void *cls, struct Session_light * session_light,
2575 const struct GNUNET_MessageHeader * hdr) 2533 const struct GNUNET_MessageHeader * hdr, const struct Radiotap_rx * rxinfo)
2576{ 2534{
2577 struct Plugin *plugin = cls; 2535 struct Plugin *plugin = cls;
2578 struct Session * session = NULL; 2536 struct Session * session = NULL;
@@ -2645,7 +2603,7 @@ wlan_data_helper(void *cls, struct Session_light * session_light,
2645 if (session != NULL) 2603 if (session != NULL)
2646 { 2604 {
2647 fragment_bitfield = insert_fragment_in_in_message_queue(plugin, 2605 fragment_bitfield = insert_fragment_in_in_message_queue(plugin,
2648 session_light, session, fh); 2606 session_light, session, fh, rxinfo);
2649 } 2607 }
2650 else 2608 else
2651 { 2609 {
@@ -2722,21 +2680,16 @@ wlan_data_helper(void *cls, struct Session_light * session_light,
2722 2680
2723} 2681}
2724 2682
2725
2726const char * 2683const char *
2727macprinter(const u_int8_t * mac) 2684macprinter(const u_int8_t * mac)
2728{ 2685{
2729 static char macstr[20]; 2686 static char macstr[20];
2730 2687
2731 GNUNET_snprintf (macstr, 2688 GNUNET_snprintf(macstr, sizeof(macstr), "%X:%X:%X:%X:%X:%X", mac[0], mac[1],
2732 sizeof (macstr), 2689 mac[2], mac[3], mac[4], mac[5]);
2733 "%X:%X:%X:%X:%X:%X",
2734 mac[0], mac[1], mac[2],
2735 mac[3], mac[4], mac[5]);
2736 return macstr; 2690 return macstr;
2737} 2691}
2738 2692
2739
2740/** 2693/**
2741 * Function used for to process the data from the suid process 2694 * Function used for to process the data from the suid process
2742 * 2695 *
@@ -2745,13 +2698,13 @@ macprinter(const u_int8_t * mac)
2745 * @param hdr header of the GNUNET_MessageHeader 2698 * @param hdr header of the GNUNET_MessageHeader
2746 */ 2699 */
2747static void 2700static void
2748wlan_process_helper (void *cls, 2701wlan_process_helper(void *cls, void *client,
2749 void *client, 2702 const struct GNUNET_MessageHeader *hdr)
2750 const struct GNUNET_MessageHeader *hdr)
2751{ 2703{
2752 struct Plugin *plugin = cls; 2704 struct Plugin *plugin = cls;
2753 struct ieee80211_frame * wlanIeeeHeader = NULL; 2705 struct ieee80211_frame * wlanIeeeHeader = NULL;
2754 struct Session_light * session_light = NULL; 2706 struct Session_light * session_light = NULL;
2707 struct Radiotap_rx * rxinfo;
2755 const struct GNUNET_MessageHeader * temp_hdr = NULL; 2708 const struct GNUNET_MessageHeader * temp_hdr = NULL;
2756 2709
2757 int datasize = 0; 2710 int datasize = 0;
@@ -2759,109 +2712,108 @@ wlan_process_helper (void *cls,
2759 2712
2760 switch (ntohs(hdr->type)) 2713 switch (ntohs(hdr->type))
2761 { 2714 {
2762 case GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA: 2715 case GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA:
2763#if DEBUG_wlan 2716#if DEBUG_wlan
2764 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, 2717 GNUNET_log(
2765 "Func wlan_process_helper got GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA size: %u\n", 2718 GNUNET_ERROR_TYPE_DEBUG,
2766 ntohs(hdr->size)); 2719 "Func wlan_process_helper got GNUNET_MESSAGE_TYPE_WLAN_HELPER_DATA size: %u\n",
2720 ntohs(hdr->size));
2767#endif 2721#endif
2768 2722
2769 //call wlan_process_helper with the message inside, later with wlan: analyze signal 2723 //call wlan_process_helper with the message inside, later with wlan: analyze signal
2770 if (ntohs(hdr->size) < sizeof(struct ieee80211_frame) + sizeof(struct GNUNET_MessageHeader)) 2724 if (ntohs(hdr->size) < sizeof(struct ieee80211_frame)
2771 { 2725 + sizeof(struct GNUNET_MessageHeader) + sizeof(struct Radiotap_rx))
2772 GNUNET_break (0); 2726 {
2773 /* FIXME: restart SUID process */ 2727 GNUNET_break (0);
2774 return; 2728 /* FIXME: restart SUID process */
2775 } 2729 return;
2776 wlanIeeeHeader = (struct ieee80211_frame *) &hdr[1]; 2730 }
2777 2731 rxinfo = (struct Radiotap_rx *) &hdr[1];
2778 //process only if it is an broadcast or for this computer both with the gnunet bssid 2732 wlanIeeeHeader = (struct ieee80211_frame *) &rxinfo[1];
2779 2733
2780 //check for bssid 2734 //process only if it is an broadcast or for this computer both with the gnunet bssid
2781 if (memcmp(&(wlanIeeeHeader->i_addr3), mac_bssid, 2735
2782 sizeof(struct MacAddress)) == 0) 2736 //check for bssid
2783 { 2737 if (memcmp(&(wlanIeeeHeader->i_addr3), mac_bssid, sizeof(struct MacAddress))
2784 //check for broadcast or mac 2738 == 0)
2785 if (memcmp(&(wlanIeeeHeader->i_addr1), bc_all_mac, 2739 {
2786 sizeof(struct MacAddress) == 0) || memcmp( 2740 //check for broadcast or mac
2787 &(wlanIeeeHeader->i_addr1), &(plugin->mac_address), 2741 if (memcmp(&(wlanIeeeHeader->i_addr1), bc_all_mac,
2788 sizeof(struct MacAddress)) == 0) 2742 sizeof(struct MacAddress) == 0) || memcmp(
2789 { 2743 &(wlanIeeeHeader->i_addr1), &(plugin->mac_address),
2790 2744 sizeof(struct MacAddress)) == 0)
2791 // process the inner data 2745 {
2792 2746
2793 2747 // process the inner data
2794 datasize = ntohs(hdr->size) - sizeof(struct ieee80211_frame) 2748
2795 - sizeof(struct GNUNET_MessageHeader); 2749
2796 2750 datasize = ntohs(hdr->size) - sizeof(struct ieee80211_frame)
2797 session_light = GNUNET_malloc(sizeof(struct Session_light)); 2751 - sizeof(struct GNUNET_MessageHeader);
2798 memcpy(session_light->addr, &(wlanIeeeHeader->i_addr2), 2752
2799 sizeof(struct MacAddress)); 2753 session_light = GNUNET_malloc(sizeof(struct Session_light));
2800 //session_light->session = search_session(plugin,session_light->addr); 2754 memcpy(session_light->addr, &(wlanIeeeHeader->i_addr2),
2801 2755 sizeof(struct MacAddress));
2802 pos = 0; 2756 //session_light->session = search_session(plugin,session_light->addr);
2803 temp_hdr = (struct GNUNET_MessageHeader *) &wlanIeeeHeader[1]; 2757
2804 while (pos < datasize) 2758 pos = 0;
2805 { 2759 temp_hdr = (struct GNUNET_MessageHeader *) &wlanIeeeHeader[1];
2806 temp_hdr = (struct GNUNET_MessageHeader *) &wlanIeeeHeader[1] 2760 while (pos < datasize)
2807 + pos; 2761 {
2808 2762 temp_hdr = (struct GNUNET_MessageHeader *) &wlanIeeeHeader[1]
2809 wlan_data_helper(plugin, session_light, temp_hdr); 2763 + pos;
2810 pos += ntohs(temp_hdr->size); 2764
2811 2765 wlan_data_helper(plugin, session_light, temp_hdr, rxinfo);
2812 } 2766 pos += ntohs(temp_hdr->size);
2813 2767
2814 //clean up 2768 }
2815 GNUNET_free(session_light); 2769
2816 } 2770 //clean up
2817 else 2771 GNUNET_free(session_light);
2818 { 2772 }
2773 else
2774 {
2819#if DEBUG_wlan 2775#if DEBUG_wlan
2820 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, 2776 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
2821 "Func wlan_process_helper got wrong MAC: %s\n", macprinter( 2777 "Func wlan_process_helper got wrong MAC: %s\n", macprinter(
2822 wlanIeeeHeader->i_addr1)); 2778 wlanIeeeHeader->i_addr1));
2823#endif 2779#endif
2824 } 2780 }
2825 } 2781 }
2826 else 2782 else
2827 { 2783 {
2828#if DEBUG_wlan 2784#if DEBUG_wlan
2829 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, 2785 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
2830 "Func wlan_process_helper got wrong BSSID: %s\n", macprinter( 2786 "Func wlan_process_helper got wrong BSSID: %s\n", macprinter(
2831 wlanIeeeHeader->i_addr2)); 2787 wlanIeeeHeader->i_addr2));
2832#endif 2788#endif
2833 } 2789 }
2834 break; 2790 break;
2835 case GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL: 2791 case GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL:
2836 //TODO more control messages 2792 //TODO more control messages
2837 //TODO use struct wlan_helper_control 2793 //TODO use struct wlan_helper_control
2838 if (ntohs(hdr->size) != sizeof(struct Wlan_Helper_Control_Message)) 2794 if (ntohs(hdr->size) != sizeof(struct Wlan_Helper_Control_Message))
2839 { 2795 {
2840 GNUNET_break (0); 2796 GNUNET_break (0);
2841 /* FIXME: restart SUID process */ 2797 /* FIXME: restart SUID process */
2842 return; 2798 return;
2843 } 2799 }
2844 memcpy (&plugin->mac_address, 2800 memcpy(&plugin->mac_address, &hdr[1], sizeof(struct MacAddress));
2845 &hdr[1],
2846 sizeof(struct MacAddress));
2847#if DEBUG_WLAN 2801#if DEBUG_WLAN
2848 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 2802 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2849 "Received WLAN_HELPER_CONTROL message with transport of address %s\n", 2803 "Received WLAN_HELPER_CONTROL message with transport of address %s\n",
2850 wlan_plugin_address_to_string (cls, 2804 wlan_plugin_address_to_string (cls,
2851 &plugin->mac_address, 2805 &plugin->mac_address,
2852 sizeof (struct MacAddress))); 2806 sizeof (struct MacAddress)));
2853#endif 2807#endif
2854 plugin->env->notify_address(plugin->env->cls, "wlan", 2808 plugin->env->notify_address(plugin->env->cls, "wlan", &plugin->mac_address,
2855 &plugin->mac_address, sizeof(struct MacAddress), 2809 sizeof(struct MacAddress), GNUNET_TIME_UNIT_FOREVER_REL);
2856 GNUNET_TIME_UNIT_FOREVER_REL); 2810 break;
2857 break; 2811 default:
2858 default: 2812 GNUNET_break (0);
2859 GNUNET_break (0); 2813 return;
2860 return;
2861 } 2814 }
2862} 2815}
2863 2816
2864
2865/** 2817/**
2866 * We have been notified that wlan-helper has written something to stdout. 2818 * We have been notified that wlan-helper has written something to stdout.
2867 * Handle the output, then reschedule this function to be called again once 2819 * Handle the output, then reschedule this function to be called again once