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Added stubs for poll/select, improved selftest/echotest, Added ringbuffer for more efficient RX/TX

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This commit is contained in:
Joseph Henry
2017-07-12 11:44:31 -07:00
parent 78d97f7826
commit 494ec2508c
12 changed files with 1547 additions and 829 deletions
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457
src/picoTCP.cpp
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@@ -42,7 +42,7 @@
#include "Utilities.hpp"
#include "SocketTap.hpp"
#include "picoTCP.hpp"
//#include "RingBuffer.hpp"
#include "RingBuffer.hpp"
// ZT
#include "Utils.hpp"
@@ -51,6 +51,7 @@
#include "Constants.hpp"
#include "Phy.hpp"
extern "C" int pico_stack_init(void);
extern "C" void pico_stack_tick(void);
@@ -83,7 +84,6 @@ struct pico_socket * pico_socket_accept(PICO_SOCKET_ACCEPT_SIG);
namespace ZeroTier {
// TODO: Determine why stack interrupt code fails when picodev is a mmember of a SocketTap
struct pico_device picodev;
bool picoTCP::pico_init_interface(SocketTap *tap, const InetAddress &ip)
@@ -102,6 +102,7 @@ namespace ZeroTier {
tap->_mac.copyTo(mac, PICO_SIZE_ETH);
if(pico_device_init(&picodev, "pz", mac) != 0) {
DEBUG_ERROR("dev init failed");
handle_general_failure();
return false;
}
tap->picodev_initialized = true;
@@ -141,38 +142,69 @@ namespace ZeroTier {
}
}
// from stack socket to app socket
void picoTCP::pico_cb_tcp_read(ZeroTier::SocketTap *tap, struct pico_socket *s)
{
//DEBUG_INFO();
Connection *conn = (Connection*)((ConnectionPair*)(s->priv))->conn;
if(conn) {
int r;
uint16_t port = 0;
union {
struct pico_ip4 ip4;
struct pico_ip6 ip6;
} peer;
do {
int avail = ZT_TCP_RX_BUF_SZ - conn->rxsz;
if(avail) {
r = pico_socket_recvfrom(s, conn->rxbuf + (conn->rxsz), ZT_SDK_MTU,
(void *)&peer.ip4.addr, &port);
if (r > 0)
conn->rxsz += r;
picostack->pico_Read(tap, conn->sock, conn, true);
//DEBUG_INFO("r = %d, conn->rxsz=%d, conn=%p, conn->sock = %p", r, conn->rxsz, conn, conn->sock);
}
else
DEBUG_ERROR("not enough space left on I/O RX buffer for pico_socket(%p)", s);
}
while(r > 0);
return;
Mutex::Lock _l(conn->_rx_m);
if(!conn || !tap) {
DEBUG_ERROR("invalid tap or conn");
handle_general_failure();
return;
}
int r, n;
uint16_t port = 0;
union {
struct pico_ip4 ip4;
struct pico_ip6 ip6;
} peer;
do {
n = 0;
//DEBUG_INFO("RXbuf->count() = %d", conn->RXbuf->count());
int avail = ZT_TCP_RX_BUF_SZ - conn->RXbuf->count();
if(avail) {
r = pico_socket_recvfrom(s, conn->RXbuf->get_buf(), ZT_STACK_SOCKET_RD_MAX,
(void *)&peer.ip4.addr, &port);
conn->tot += r;
if (r > 0)
{
conn->RXbuf->produce(r);
//DEBUG_INFO("RXbuf->count() = %d", conn->RXbuf->count());
n = tap->_phy.streamSend(conn->sock, conn->RXbuf->get_buf(), r);
if(n>0)
conn->RXbuf->consume(n);
//DEBUG_INFO("pico_recv = %d, streamSend = %d, rxsz = %d, tot = %d", r, n, conn->RXbuf->count(), conn->tot);
//DEBUG_TRANS("[ TCP RX <- STACK] :: conn = %p, len = %d", conn, n);
}
if(conn->RXbuf->count() == 0) {
tap->_phy.setNotifyWritable(conn->sock, false);
}
else {
tap->_phy.setNotifyWritable(conn->sock, true);
}
}
else {
//tap->_phy.setNotifyWritable(conn->sock, false);
DEBUG_ERROR("not enough space left on I/O RX buffer for pico_socket(%p)", s);
handle_general_failure();
}
}
DEBUG_ERROR("invalid connection");
while(r > 0);
}
// from stack socket to app socket
void picoTCP::pico_cb_udp_read(SocketTap *tap, struct pico_socket *s)
{
/*
DEBUG_INFO();
Connection *conn = (Connection*)((ConnectionPair*)(s->priv))->conn;
Mutex::Lock _l(conn->_rx_m);
@@ -216,6 +248,7 @@ namespace ZeroTier {
}
if (r < 0) {
DEBUG_ERROR("unable to read from picosock=%p", s);
handle_general_failure();
}
tap->_rx_buf_m.unlock();
@@ -224,39 +257,43 @@ namespace ZeroTier {
//DEBUG_EXTRA(" Copied onto rxbuf (%d) from stack socket", r);
return;
}
*/
}
void picoTCP::pico_cb_tcp_write(SocketTap *tap, struct pico_socket *s)
{
//DEBUG_INFO();
Connection *conn = (Connection*)((ConnectionPair*)(s->priv))->conn;
Mutex::Lock _l(conn->_tx_m);
if(!conn) {
Mutex::Lock _l(conn->_tx_m);
if(!conn) {
DEBUG_ERROR("invalid connection");
handle_general_failure();
return;
}
//DEBUG_INFO("conn = %p", conn);
//DEBUG_INFO("conn.txsz = %d", conn->txsz);
if(!conn->txsz)
return;
// Only called from a locked context, no need to lock anything
if(conn->txsz > 0) {
int r, max_write_len = conn->txsz < ZT_SDK_MTU ? conn->txsz : ZT_SDK_MTU;
if((r = pico_socket_write(s, &conn->txbuf, max_write_len)) < 0) {
DEBUG_ERROR("unable to write to picosock=%p", s);
return;
}
int sz = (conn->txsz)-r;
if(sz)
memmove(&conn->txbuf, (conn->txbuf+r), sz);
conn->txsz -= r;
//DEBUG_INFO("conn->txsz = %d, r = %d, sz = %d", conn->txsz, r, sz);
int txsz = conn->TXbuf->count();
if(txsz <= 0)
return;
//DEBUG_INFO("TXbuf->count() = %d", conn->TXbuf->count());
#if DEBUG_LEVEL >= MSG_TRANSFER
int max = conn->socket_type == SOCK_STREAM ? ZT_TCP_TX_BUF_SZ : ZT_UDP_TX_BUF_SZ;
DEBUG_TRANS("[ TCP TX -> STACK] :: conn = %p, len = %d", conn, r);
#endif
}
int r, max_write_len = std::min(std::min(txsz, ZT_SDK_MTU),ZT_STACK_SOCKET_WR_MAX);
if((r = pico_socket_write(conn->picosock, conn->TXbuf->get_buf(), max_write_len)) < 0) {
DEBUG_ERROR("unable to write to picosock=%p, r=%d", conn->picosock, r);
handle_general_failure();
return;
}
if(conn->socket_type == SOCK_STREAM) {
//DEBUG_TRANS("[ TCP TX -> STACK] :: conn = %p, len = %d", conn, r);
}
if(conn->socket_type == SOCK_DGRAM) {
//DEBUG_TRANS("[ UDP TX -> STACK] :: conn = %p, len = %d", conn, r);
}
if(r == 0) {
// This is a peciliarity of the picoTCP network stack, if we receive no error code, and the size of
// the byte stream written is 0, this is an indication that the buffer for this pico_socket is too small
// DEBUG_ERROR("pico_socket buffer is too small (adjust ZT_STACK_SOCKET_TX_SZ, ZT_STACK_SOCKET_RX_SZ)");
// handle_general_failure();
}
if(r>0)
conn->TXbuf->consume(r);
}
void picoTCP::pico_cb_socket_activity(uint16_t ev, struct pico_socket *s)
@@ -267,11 +304,13 @@ namespace ZeroTier {
Connection *conn = (Connection*)((ConnectionPair*)(s->priv))->conn;
if(!tap || !conn) {
DEBUG_ERROR("invalid tap or conn");
handle_general_failure();
return;
}
int err = 0;
if(!conn) {
DEBUG_ERROR("invalid connection");
handle_general_failure();
return;
}
// PICO_SOCK_EV_CONN - triggered when connection is established (TCP only). This event is
@@ -286,10 +325,7 @@ namespace ZeroTier {
uint16_t port;
struct pico_socket *client_psock = pico_socket_accept(s, &peer, &port);
if(!client_psock) {
if(pico_err == PICO_ERR_EINVAL)
DEBUG_ERROR("pico_err = PICO_ERR_EINVAL");
if(pico_err == PICO_ERR_EAGAIN)
DEBUG_ERROR("pico_err = PICO_ERR_EAGAIN");
DEBUG_ERROR("pico_err=%s, picosock=%p", beautify_pico_error(pico_err), s);
return;
}
@@ -305,8 +341,27 @@ namespace ZeroTier {
newConn->picosock->priv = new ConnectionPair(tap,newConn);
tap->_Connections.push_back(newConn);
conn->_AcceptedConnections.push(newConn);
int value = 1;
pico_socket_setoption(newConn->picosock, PICO_TCP_NODELAY, &value);
if(ZT_SOCK_BEHAVIOR_LINGER) {
int linger_time_ms = ZT_SOCK_BEHAVIOR_LINGER_TIME;
int t_err = 0;
if((t_err = pico_socket_setoption(newConn->picosock, PICO_SOCKET_OPT_LINGER, &linger_time_ms)) < 0)
DEBUG_ERROR("unable to set LINGER size, err = %d, pico_err = %d, app_fd=%d, sdk_fd=%d", t_err, pico_err, conn->app_fd, conn->sdk_fd);
}
/*
linger_time_ms = 0;
if((t_err = pico_socket_getoption(newConn->picosock, PICO_SOCKET_OPT_LINGER, &linger_time_ms)) < 0)
DEBUG_ERROR("unable to set LINGER size, err = %d, pico_err = %d", t_err, pico_err);
DEBUG_TEST("getting linger = %d", linger_time_ms);
*/
// For I/O loop participation and referencing the PhySocket's parent Connection in callbacks
newConn->sock = tap->_phy.wrapSocket(newConn->sdk_fd, newConn);
//DEBUG_ERROR("sock->fd = %d", tap->_phy.getDescriptor(newConn->sock));
}
if(conn->state != ZT_SOCK_STATE_LISTENING) {
// set state so socket multiplexer logic will pick this up
@@ -317,7 +372,7 @@ namespace ZeroTier {
// PICO_SOCK_EV_FIN - triggered when the socket is closed. No further communication is
// possible from this point on the socket.
if (ev & PICO_SOCK_EV_FIN) {
// DEBUG_EXTRA("PICO_SOCK_EV_FIN (socket closed), picosock=%p, conn=%p", s, conn);
//DEBUG_EXTRA("PICO_SOCK_EV_FIN (socket closed), picosock=%p, conn=%p, app_fd=%d, sdk_fd=%d", s, conn, conn->app_fd, conn->sdk_fd);
conn->closure_ts = std::time(nullptr);
}
@@ -327,7 +382,7 @@ namespace ZeroTier {
DEBUG_ERROR("PICO_ERR_ECONNRESET");
conn->state = PICO_ERR_ECONNRESET;
}
// DEBUG_INFO("PICO_SOCK_EV_ERR (socket error received) err=%d, picosock=%p", pico_err, s);
DEBUG_ERROR("PICO_SOCK_EV_ERR, err=%s, picosock=%p, app_fd=%d, sdk_fd=%d", beautify_pico_error(pico_err), s, conn->app_fd, conn->sdk_fd);
}
// PICO_SOCK_EV_CLOSE - triggered when a FIN segment is received (TCP only). This event
// indicates that the oher endpont has closed the connection, so the local TCP layer is only
@@ -336,7 +391,7 @@ namespace ZeroTier {
// allowing new data to be sent in the TCP CLOSE WAIT state.
if (ev & PICO_SOCK_EV_CLOSE) {
err = pico_socket_close(s);
// DEBUG_INFO("PICO_SOCK_EV_CLOSE (socket closure) err = %d, picosock=%p, conn=%p", err, s, conn);
//DEBUG_INFO("PICO_SOCK_EV_CLOSE (socket closure) err = %d, picosock=%p, conn=%p, app_fd=%d, sdk_fd=%d", err, s, conn, conn->app_fd, conn->sdk_fd);
conn->closure_ts = std::time(nullptr);
return;
}
@@ -361,6 +416,7 @@ namespace ZeroTier {
SocketTap *tap = (SocketTap*)(dev->tap);
if(!tap) {
DEBUG_ERROR("invalid dev->tap");
handle_general_failure();
return ZT_ERR_GENERAL_FAILURE;
}
struct pico_eth_hdr *ethhdr;
@@ -374,12 +430,14 @@ namespace ZeroTier {
return len;
}
// receive frames from zerotier virtual wire and copy them to a guarded buffer awaiting placement into network stack
void picoTCP::pico_rx(SocketTap *tap, const MAC &from,const MAC &to,unsigned int etherType,
const void *data,unsigned int len)
{
//DEBUG_INFO("len = %d", len);
DEBUG_INFO("len = %d", len);
if(!tap) {
DEBUG_ERROR("invalid tap");
handle_general_failure();
return;
}
// Since picoTCP only allows the reception of frames from within the polling function, we
@@ -408,11 +466,13 @@ namespace ZeroTier {
//DEBUG_FLOW("[ ZWIRE -> FBUF ] Move FRAME(sz=%d) into FBUF(sz=%d), data_len=%d", newlen, tap->pico_frame_rxbuf_tot, len);
}
// feed frames on the guarded RX buffer (from zerotier virtual wire) into the network stack
int pico_eth_poll(struct pico_device *dev, int loop_score)
{
SocketTap *tap = (SocketTap*)(dev->tap);
if(!tap) {
DEBUG_ERROR("invalid dev->tap");
handle_general_failure();
return ZT_ERR_GENERAL_FAILURE;
}
// FIXME: The copy logic and/or buffer structure should be reworked for better performance after the BETA
@@ -434,8 +494,10 @@ namespace ZeroTier {
//DEBUG_INFO("recv = %d", err);
tap->pico_frame_rxbuf_tot-=len;
}
else
else {
DEBUG_ERROR("Invalid frame size (%d). Exiting.",len);
handle_general_failure();
}
loop_score--;
}
return loop_score;
@@ -445,6 +507,7 @@ namespace ZeroTier {
{
if(!conn || !conn->picosock) {
DEBUG_ERROR("invalid conn or conn->picosock");
handle_general_failure();
return ZT_ERR_GENERAL_FAILURE;
}
int err = 0;
@@ -483,6 +546,7 @@ namespace ZeroTier {
//DEBUG_INFO();
if(!conn || !conn->picosock) {
DEBUG_ERROR("invalid conn or conn->picosock");
handle_general_failure();
return ZT_ERR_GENERAL_FAILURE;
}
int err = 0;
@@ -492,9 +556,8 @@ namespace ZeroTier {
struct sockaddr_in *in4 = (struct sockaddr_in*)addr;
char ipv4_str[INET_ADDRSTRLEN];
inet_ntop(AF_INET, (const void *)&in4->sin_addr.s_addr, ipv4_str, INET_ADDRSTRLEN);
uint32_t ipval = 0;
pico_string_to_ipv4(ipv4_str, &(zaddr.addr));
DEBUG_EXTRA("addr=%s:%d", ipv4_str, Utils::ntoh(in4->sin_port));
//DEBUG_EXTRA("addr=%s:%d", ipv4_str, Utils::ntoh(in4->sin_port));
err = pico_socket_bind(conn->picosock, &zaddr, (uint16_t *)&(in4->sin_port));
}
if(conn->socket_family == AF_INET6) {
@@ -504,7 +567,7 @@ namespace ZeroTier {
inet_ntop(AF_INET6, &(in6->sin6_addr), ipv6_str, INET6_ADDRSTRLEN);
// TODO: This isn't proper
pico_string_to_ipv6("::", pip6.addr);
DEBUG_EXTRA("addr=%s:%d", ipv6_str, Utils::ntoh(in6->sin6_port));
//DEBUG_EXTRA("addr=%s:%d", ipv6_str, Utils::ntoh(in6->sin6_port));
err = pico_socket_bind(conn->picosock, &pip6, (uint16_t *)&(in6->sin6_port));
}
if(err < 0) {
@@ -535,6 +598,7 @@ namespace ZeroTier {
//DEBUG_INFO();
if(!conn || !conn->picosock) {
DEBUG_ERROR("invalid conn or conn->picosock");
handle_general_failure();
return ZT_ERR_GENERAL_FAILURE;
}
int err = 0;
@@ -559,6 +623,7 @@ namespace ZeroTier {
{
if(!conn) {
DEBUG_ERROR("invalid conn");
handle_general_failure();
return NULL;
}
// Retreive first of queued Connections from parent connection
@@ -572,8 +637,12 @@ namespace ZeroTier {
void picoTCP::pico_Read(SocketTap *tap, PhySocket *sock, Connection* conn, bool stack_invoked)
{
DEBUG_INFO();
//exit(0);
/*
if(!conn || !tap || !conn) {
DEBUG_ERROR("invalid tap, sock, or conn");
handle_general_failure();
return;
}
//DEBUG_INFO();
@@ -625,10 +694,9 @@ namespace ZeroTier {
// Notify ZT I/O loop that it has new buffer contents
if(n) {
if(conn->socket_type==SOCK_STREAM) {
#if DEBUG_LEVEL >= MSG_TRANSFER
float max = conn->socket_type == SOCK_STREAM ? (float)ZT_TCP_RX_BUF_SZ : (float)ZT_UDP_RX_BUF_SZ;
DEBUG_TRANS("[ TCP RX <- STACK] :: conn = %p, len = %d", conn, n);
#endif
//#if DEBUG_LEVEL >= MSG_TRANSFER
// DEBUG_TRANS("[ TCP RX <- STACK] :: conn = %p, len = %d", conn, n);
//#endif
}
if(conn->rxsz == 0) {
tap->_phy.setNotifyWritable(sock, false);
@@ -646,13 +714,17 @@ namespace ZeroTier {
tap->_rx_buf_m.unlock();
}
// DEBUG_FLOW("[ ZTSOCK <- RXBUF] Emitted (%d) from RXBUF(%d) to socket", tot, conn->rxsz);
*/
}
void picoTCP::pico_Write(Connection *conn, void *data, ssize_t len)
{
Mutex::Lock _l(conn->_tx_m);
if(len <= 0) {
DEBUG_ERROR("invalid write length");
// TODO: Add RingBuffer overflow checks
//DEBUG_INFO("conn=%p, len = %d", conn, len);
Mutex::Lock _l(conn->_tx_m);
if(len <= 0) {
DEBUG_ERROR("invalid write length (len=%d)", len);
handle_general_failure();
return;
}
if(conn->picosock->state & PICO_SOCKET_STATE_CLOSED){
@@ -660,45 +732,41 @@ namespace ZeroTier {
return;
}
if(!conn) {
DEBUG_ERROR("invalid connection");
DEBUG_ERROR("invalid connection (len=%d)", len);
handle_general_failure();
return;
}
if(conn->txsz + len >= ZT_TCP_TX_BUF_SZ) {
int original_txsz = conn->TXbuf->count();
if(original_txsz + len >= ZT_TCP_TX_BUF_SZ) {
DEBUG_ERROR("txsz = %d, len = %d", original_txsz, len);
DEBUG_ERROR("TX buffer is too small, try increasing ZT_TCP_TX_BUF_SZ in libzt.h");
return;
exit(0);
}
// DEBUG_INFO("conn->txsz = %d, len = %d", conn->txsz, len);
unsigned char *buf = (unsigned char*)data;
memcpy(conn->txbuf + conn->txsz, buf, len);
conn->txsz += len;
int buf_w = conn->TXbuf->write((const unsigned char*)data, len);
//DEBUG_INFO("TXbuf->count() = %d", conn->TXbuf->count());
int txsz = conn->TXbuf->count();
//DEBUG_INFO("conn = %p, conn->picosock = %p", conn, conn->picosock);
if(!conn || !conn->picosock) {
DEBUG_ERROR("invalid conn or conn->picosock");
return;
}
int max, r, max_write_len = conn->txsz < ZT_SDK_MTU ? conn->txsz : ZT_SDK_MTU;
if((r = pico_socket_write(conn->picosock, &conn->txbuf, max_write_len)) < 0) {
//if(original_txsz > 0)
// return; // don't write here, we already have stuff in the queue, a callback will handle it
int r, max_write_len = std::min(std::min(txsz, ZT_SDK_MTU),ZT_STACK_SOCKET_WR_MAX);
//int buf_r = conn->TXbuf->read(conn->tmptxbuf, max_write_len);
if((r = pico_socket_write(conn->picosock, conn->TXbuf->get_buf(), max_write_len)) < 0) {
DEBUG_ERROR("unable to write to picosock=%p, r=%d", conn->picosock, r);
return;
}
// adjust buffer
int sz = (conn->txsz)-r;
if(sz)
{
memmove(&conn->txbuf, (conn->txbuf+r), sz);
}
conn->txsz -= r;
if(conn->socket_type == SOCK_STREAM) {
max = ZT_TCP_TX_BUF_SZ;
DEBUG_TRANS("[ TCP TX -> STACK] :: conn = %p, len = %d", conn, r);
//DEBUG_TRANS("[ TCP TX -> STACK] :: conn = %p, len = %d", conn, r);
}
if(conn->socket_type == SOCK_DGRAM) {
max = ZT_UDP_TX_BUF_SZ;
DEBUG_TRANS("[ UDP TX -> STACK] :: conn = %p, len = %d", conn, r);
//DEBUG_TRANS("[ UDP TX -> STACK] :: conn = %p, len = %d", conn, r);
}
if(r>0)
conn->TXbuf->consume(r);
}
int picoTCP::pico_Close(Connection *conn)
@@ -717,54 +785,169 @@ namespace ZeroTier {
return err;
}
int beautify_pico_error(int err)
char *picoTCP::beautify_pico_error(int err)
{
return 0;
/*
switch(err){
PICO_ERR_NOERR = 0,
PICO_ERR_EPERM = 1,
PICO_ERR_ENOENT = 2,
PICO_ERR_EINTR = 4,
PICO_ERR_EIO = 5,
PICO_ERR_ENXIO = 6,
PICO_ERR_EAGAIN = 11,
PICO_ERR_ENOMEM = 12,
PICO_ERR_EACCESS = 13,
PICO_ERR_EFAULT = 14,
PICO_ERR_EBUSY = 16,
PICO_ERR_EEXIST = 17,
PICO_ERR_EINVAL = 22,
if(err== 0) return (char*)"PICO_ERR_NOERR";
if(err== 1) return (char*)"PICO_ERR_EPERM";
if(err== 2) return (char*)"PICO_ERR_ENOENT";
// ...
if(err== 4) return (char*)"PICO_ERR_EINTR";
if(err== 5) return (char*)"PICO_ERR_EIO";
if(err== 6) return (char*)"PICO_ERR_ENXIO";
// ...
if(err== 11) return (char*)"PICO_ERR_EAGAIN";
if(err== 12) return (char*)"PICO_ERR_ENOMEM";
if(err== 13) return (char*)"PICO_ERR_EACCESS";
if(err== 14) return (char*)"PICO_ERR_EFAULT";
// ...
if(err== 16) return (char*)"PICO_ERR_EBUSY";
if(err== 17) return (char*)"PICO_ERR_EEXIST";
// ...
if(err== 22) return (char*)"PICO_ERR_EINVAL";
// ...
if(err== 64) return (char*)"PICO_ERR_ENONET";
// ...
if(err== 71) return (char*)"PICO_ERR_EPROTO";
// ...
if(err== 92) return (char*)"PICO_ERR_ENOPROTOOPT";
if(err== 93) return (char*)"PICO_ERR_EPROTONOSUPPORT";
// ...
if(err== 95) return (char*)"PICO_ERR_EOPNOTSUPP";
if(err== 98) return (char*)"PICO_ERR_EADDRINUSE";
if(err== 99) return (char*)"PICO_ERR_EADDRNOTAVAIL";
if(err==100) return (char*)"PICO_ERR_ENETDOWN";
if(err==101) return (char*)"PICO_ERR_ENETUNREACH";
// ...
if(err==104) return (char*)"PICO_ERR_ECONNRESET";
// ...
if(err==106) return (char*)"PICO_ERR_EISCONN";
if(err==107) return (char*)"PICO_ERR_ENOTCONN";
if(err==108) return (char*)"PICO_ERR_ESHUTDOWN";
// ...
if(err==110) return (char*)"PICO_ERR_ETIMEDOUT";
if(err==111) return (char*)"PICO_ERR_ECONNREFUSED";
if(err==112) return (char*)"PICO_ERR_EHOSTDOWN";
if(err==113) return (char*)"PICO_ERR_EHOSTUNREACH";
return (char*)"UNKNOWN_ERROR";
}
PICO_ERR_ENONET = 64,
/*
PICO_ERR_EPROTO = 71,
#define PICO_SOCKET_STATE_UNDEFINED 0x0000u
#define PICO_SOCKET_STATE_SHUT_LOCAL 0x0001u
#define PICO_SOCKET_STATE_SHUT_REMOTE 0x0002u
#define PICO_SOCKET_STATE_BOUND 0x0004u
#define PICO_SOCKET_STATE_CONNECTED 0x0008u
#define PICO_SOCKET_STATE_CLOSING 0x0010u
#define PICO_SOCKET_STATE_CLOSED 0x0020u
PICO_ERR_ENOPROTOOPT = 92,
PICO_ERR_EPROTONOSUPPORT = 93,
# define PICO_SOCKET_STATE_TCP 0xFF00u
# define PICO_SOCKET_STATE_TCP_UNDEF 0x00FFu
# define PICO_SOCKET_STATE_TCP_CLOSED 0x0100u
# define PICO_SOCKET_STATE_TCP_LISTEN 0x0200u
# define PICO_SOCKET_STATE_TCP_SYN_SENT 0x0300u
# define PICO_SOCKET_STATE_TCP_SYN_RECV 0x0400u
# define PICO_SOCKET_STATE_TCP_ESTABLISHED 0x0500u
# define PICO_SOCKET_STATE_TCP_CLOSE_WAIT 0x0600u
# define PICO_SOCKET_STATE_TCP_LAST_ACK 0x0700u
# define PICO_SOCKET_STATE_TCP_FIN_WAIT1 0x0800u
# define PICO_SOCKET_STATE_TCP_FIN_WAIT2 0x0900u
# define PICO_SOCKET_STATE_TCP_CLOSING 0x0a00u
# define PICO_SOCKET_STATE_TCP_TIME_WAIT 0x0b00u
# define PICO_SOCKET_STATE_TCP_ARRAYSIZ 0x0cu
PICO_ERR_EOPNOTSUPP = 95,
PICO_ERR_EADDRINUSE = 98,
PICO_ERR_EADDRNOTAVAIL = 99,
PICO_ERR_ENETDOWN = 100,
PICO_ERR_ENETUNREACH = 101,
*/
char *picoTCP::beautify_pico_state(int state)
{
char state_str[512];
char *str_ptr = state_str;
PICO_ERR_ECONNRESET = 104,
PICO_ERR_EISCONN = 106,
PICO_ERR_ENOTCONN = 107,
PICO_ERR_ESHUTDOWN = 108,
PICO_ERR_ETIMEDOUT = 110,
PICO_ERR_ECONNREFUSED = 111,
PICO_ERR_EHOSTDOWN = 112,
PICO_ERR_EHOSTUNREACH = 113,
if(state & PICO_SOCKET_STATE_UNDEFINED) {
sprintf(str_ptr, "UNDEFINED ");
str_ptr += strlen("UNDEFINED ");
}
return err_text;
*/
if(state & PICO_SOCKET_STATE_SHUT_LOCAL) {
sprintf(str_ptr, "SHUT_LOCAL ");
str_ptr += strlen("SHUT_LOCAL ");
}
if(state & PICO_SOCKET_STATE_SHUT_REMOTE) {
sprintf(str_ptr, "SHUT_REMOTE ");
str_ptr += strlen("SHUT_REMOTE ");
}
if(state & PICO_SOCKET_STATE_BOUND) {
sprintf(str_ptr, "BOUND ");
str_ptr += strlen("BOUND ");
}
if(state & PICO_SOCKET_STATE_CONNECTED) {
sprintf(str_ptr, "CONNECTED ");
str_ptr += strlen("CONNECTED ");
}
if(state & PICO_SOCKET_STATE_CLOSING) {
sprintf(str_ptr, "CLOSING ");
str_ptr += strlen("CLOSING ");
}
if(state & PICO_SOCKET_STATE_CLOSED) {
sprintf(str_ptr, "CLOSED ");
str_ptr += strlen("CLOSED ");
}
if(state & PICO_SOCKET_STATE_TCP) {
sprintf(str_ptr, "TCP ");
str_ptr += strlen("TCP ");
}
if(state & PICO_SOCKET_STATE_TCP_UNDEF) {
sprintf(str_ptr, "TCP_UNDEF ");
str_ptr += strlen("TCP_UNDEF ");
}
if(state & PICO_SOCKET_STATE_TCP_CLOSED) {
sprintf(str_ptr, "TCP_CLOSED ");
str_ptr += strlen("TCP_CLOSED ");
}
if(state & PICO_SOCKET_STATE_TCP_LISTEN) {
sprintf(str_ptr, "TCP_LISTEN ");
str_ptr += strlen("TCP_LISTEN ");
}
if(state & PICO_SOCKET_STATE_TCP_SYN_SENT) {
sprintf(str_ptr, "TCP_SYN_SENT ");
str_ptr += strlen("TCP_SYN_SENT ");
}
if(state & PICO_SOCKET_STATE_TCP_SYN_RECV) {
sprintf(str_ptr, "TCP_SYN_RECV ");
str_ptr += strlen("TCP_SYN_RECV ");
}
if(state & PICO_SOCKET_STATE_TCP_ESTABLISHED) {
sprintf(str_ptr, "TCP_ESTABLISHED ");
str_ptr += strlen("TCP_ESTABLISHED ");
}
if(state & PICO_SOCKET_STATE_TCP_CLOSE_WAIT) {
sprintf(str_ptr, "TCP_CLOSE_WAIT ");
str_ptr += strlen("TCP_CLOSE_WAIT ");
}
if(state & PICO_SOCKET_STATE_TCP_LAST_ACK) {
sprintf(str_ptr, "TCP_LAST_ACK ");
str_ptr += strlen("TCP_LAST_ACK ");
}
if(state & PICO_SOCKET_STATE_TCP_FIN_WAIT1) {
sprintf(str_ptr, "TCP_FIN_WAIT1 ");
str_ptr += strlen("TCP_FIN_WAIT1 ");
}
if(state & PICO_SOCKET_STATE_TCP_FIN_WAIT2) {
sprintf(str_ptr, "TCP_FIN_WAIT2 ");
str_ptr += strlen("TCP_FIN_WAIT2 ");
}
if(state & PICO_SOCKET_STATE_TCP_CLOSING) {
sprintf(str_ptr, "TCP_CLOSING ");
str_ptr += strlen("TCP_CLOSING ");
}
if(state & PICO_SOCKET_STATE_TCP_TIME_WAIT) {
sprintf(str_ptr, "TCP_TIME_WAIT ");
str_ptr += strlen("TCP_TIME_WAIT ");
}
if(state & PICO_SOCKET_STATE_TCP_ARRAYSIZ) {
sprintf(str_ptr, "TCP_ARRAYSIZ ");
str_ptr += strlen("TCP_ARRAYSIZ ");
}
return (char*)state_str;
}
}