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- TCP: set_accept_cb() added; semaphore release bugs fixed

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This commit is contained in:
Wiesner András 2024-04-23 23:33:26 +02:00
parent cea600b3a4
commit ca97d1718a
2 changed files with 155 additions and 145 deletions
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34
prefab/conn_blocks/tcp_connblock.c
View File

@ -3,16 +3,16 @@
#include <stddef.h>
#include <stdlib.h>
#include "../packet_parsers/packet_parsers.h"
#include "../../utils.h"
#include "../../dynmem.h"
#include "../../pckt_assembler.h"
#include "../../eth_interface.h"
#include "ipv4_connblock.h"
#include "../../gen_queue.h"
#include "etherlib_options.h"
#include "../../prefab/conn_blocks/tcp/tcp_window.h"
#include "../../global_state.h"
#include "../../pckt_assembler.h"
#include "../../prefab/conn_blocks/tcp/tcp_window.h"
#include "../../utils.h"
#include "../packet_parsers/packet_parsers.h"
#include "etherlib_options.h"
#include "ipv4_connblock.h"
// TODO: - retransmission hiányzik
// TODO: - állapotváltás esetleg a küldés előtt? (külcsönös kizárás és társai...)
@ -30,8 +30,7 @@ static inline cbd tcp_new_connblock_filtcond(EthInterface *intf, ip4_addr ipAddr
static char *TCP_STATE_NAMES[] = {
"CLOSED", "LISTEN", "SYN_RCVD", "SYN_SENT", "ESTAB", "FIN_WAIT_1",
"FIN_WAIT_2", "CLOSE_WAIT", "CLOSING", "LAST_ACK", "TIME_WAIT"
};
"FIN_WAIT_2", "CLOSE_WAIT", "CLOSING", "LAST_ACK", "TIME_WAIT"};
int tcp_send_segment(const struct ConnBlock_ *connBlock, TcpFlag flags, TcpOption *opts, const uint8_t *data, uint32_t size);
@ -56,7 +55,9 @@ static inline TcpState *tcps_create() {
uint32_t winSize = MAX(ETHLIB_DEF_TCP_WINDOW_SIZE, MAX_TCP_WINDOW_SIZE);
tcps->txWin = tcpw_create(winSize); // create transmit window
tcps->txBufNotFull = ETHLIB_OS_SEM_CREATE(1); // create transmit buffer not full semaphore
ETHLIB_OS_SEM_POST(tcps->txBufNotFull); // post the tx buffer semaphore
tcps->txInProgress = ETHLIB_OS_SEM_CREATE(1); // create transmission in progress semaphore
ETHLIB_OS_SEM_POST(tcps->txInProgress);
return tcps;
}
@ -205,7 +206,6 @@ int tcp_receive_segment_cb(const Pckt *pckt, PcktSieveLayerTag tag) {
// step into next state
tcps->connState = TCP_STATE_ESTAB;
}
}
break;
@ -245,7 +245,6 @@ int tcp_receive_segment_cb(const Pckt *pckt, PcktSieveLayerTag tag) {
tcps->acceptCb(client_d);
}
}
}
break;
@ -297,8 +296,8 @@ int tcp_receive_segment_cb(const Pckt *pckt, PcktSieveLayerTag tag) {
case TCP_STATE_LAST_ACK: /* last ACK received */
if (tcpProps->Flags & TCP_FLAG_ACK) {
tcps->connState = TCP_STATE_CLOSED;
ETHLIB_OS_SEM_POST(tcps->txBufNotFull);
ETHLIB_OS_SEM_WAIT(tcps->txInProgress);
//ETHLIB_OS_SEM_POST(tcps->txBufNotFull); FIXME!
//ETHLIB_OS_SEM_WAIT(tcps->txInProgress);
ret = SIEVE_LAYER_REMOVE_THIS; // if peer closed the connection, remove sieve layer
}
break;
@ -377,6 +376,17 @@ void tcp_listen(cbd d) {
}
}
void tcp_set_accept_callback(cbd d, TcpAcceptCbFn acb) {
ConnBlock connBlock;
if (!cbdt_get_connection_block(E.cbdt, d, &connBlock)) {
ERROR("Invalid CBD descriptor: '%d'!\n", d);
return;
}
TcpState *tcps = TCP_FETCH_STATE_FROM_CONNBLOCK(&connBlock);
tcps->acceptCb = acb;
}
void tcp_debug(cbd d, bool debug) {
ConnBlock connBlock;
if (!cbdt_get_connection_block(E.cbdt, d, &connBlock)) {

2
prefab/conn_blocks/tcp_connblock.h
View File

@ -103,7 +103,7 @@ typedef struct {
// ---------------
BlockingFifo * rxFifo; ///< Receive FIFO
EthBlockingFifo * rxFifo; ///< Receive FIFO
} TcpState;