static inline ssize_t
tls_pull(gnutls_transport_ptr ptr, void *buf, size_t size)
{
struct gnutella_socket *s = ptr;
ssize_t ret;
int saved_errno;
socket_check(s);
g_assert(is_valid_fd(s->file_desc));
ret = s_read(s->file_desc, buf, size);
saved_errno = errno;
tls_signal_pending(s);
if ((ssize_t) -1 == ret) {
tls_set_errno(s, saved_errno);
if (!is_temporary_error(saved_errno)) {
socket_connection_reset(s);
}
} else if (0 == ret) {
socket_eof(s);
}
tls_transport_debug("tls_pull", s, size, ret);
errno = saved_errno;
return ret;
}
int
tls_init(struct gnutella_socket *s)
{
socket_check(s);
g_assert_not_reached();
return -1;
}
BOOL data_waiting(void* unused, unsigned timeout)
{
BOOL rd;
if(!socket_check(sock,&rd,NULL,timeout))
return(FALSE);
return(rd);
}
static int socket_write(lua_State *L)
{
lua_apr_socket *object = socket_check(L, 1, 1);
int nresults = write_buffer(L, &object->output);
apr_status_t status = flush_buffer(L, &object->output, 1);
if (status != APR_SUCCESS)
return push_error_status(L, status);
return nresults;
}
asmlinkage int solaris_socket(int family, int type, int protocol)
{
int (*sys_socket)(int, int, int) =
(int (*)(int, int, int))SYS(socket);
type = socket_check (family, type);
if (type < 0) return type;
return sys_socket(family, type, protocol);
}
static int socket_gc(lua_State *L)
{
lua_apr_socket *socket = socket_check(L, 1, 0);
if (object_collectable((lua_apr_refobj*)socket)) {
free_buffer(L, &socket->input.buffer);
free_buffer(L, &socket->output.buffer);
socket_close_impl(L, socket);
}
release_object((lua_apr_refobj*)socket);
return 0;
}
static int socket_tostring(lua_State *L)
{
lua_apr_socket *socket;
socket = socket_check(L, 1, 0);
if (socket->handle != NULL)
lua_pushfstring(L, "%s (%p)", lua_apr_socket_type.friendlyname, socket->handle);
else
lua_pushfstring(L, "%s (closed)", lua_apr_socket_type.friendlyname);
return 1;
}
void
tls_wio_link(struct gnutella_socket *s)
{
socket_check(s);
s->wio.write = tls_write;
s->wio.read = tls_read;
s->wio.writev = tls_writev;
s->wio.readv = tls_readv;
s->wio.sendto = tls_no_sendto;
s->wio.flush = tls_flush;
}
static int socket_opt_set(lua_State *L)
{
apr_status_t status;
lua_apr_socket *object;
apr_int32_t option, value;
object = socket_check(L, 1, 1);
option = option_check(L, 2);
value = lua_isboolean(L, 3) ? lua_toboolean(L, 3) : luaL_checkinteger(L, 3);
status = apr_socket_opt_set(object->handle, option, value);
return push_status(L, status);
}
int socket_fd_set(lua_State *L)
{
lua_apr_socket *object;
apr_status_t status;
apr_os_sock_t fd;
object = socket_check(L, 1, 0);
fd = luaL_checkinteger(L, 2);
status = apr_os_sock_put(&object->handle, &fd, object->pool);
return push_status(L, status);
}
static int socket_listen(lua_State *L)
{
lua_apr_socket *object;
apr_status_t status;
apr_int32_t backlog = SOMAXCONN;
object = socket_check(L, 1, 1);
if (strcmp(lua_tostring(L, 2), "max") != 0)
backlog = luaL_checkinteger(L, 2);
status = apr_socket_listen(object->handle, backlog);
return push_status(L, status);
}
int socket_fd_get(lua_State *L)
{
apr_status_t status;
lua_apr_socket *object;
apr_os_sock_t fd;
object = socket_check(L, 1, 1);
status = apr_os_sock_get(&fd, object->handle);
if (status != APR_SUCCESS)
return push_error_status(L, status);
lua_pushinteger(L, fd);
return 1;
}
static int socket_timeout_set(lua_State *L)
{
lua_apr_socket *object;
apr_status_t status;
apr_interval_time_t timeout;
object = socket_check(L, 1, 1);
if (lua_isnumber(L, 2))
timeout = luaL_checkinteger(L, 2);
else
timeout = lua_toboolean(L, 2) ? -1 : 0;
status = apr_socket_timeout_set(object->handle, timeout);
return push_status(L, status);
}
static int socket_recvfrom(lua_State *L)
{
lua_apr_socket *object;
apr_status_t status;
apr_sockaddr_t address = { 0 };
apr_size_t buflen;
apr_int32_t flags;
char buffer[1024], ip_addr[APRMAXHOSTLEN];
char *bufptr;
int i;
/* Validate arguments. */
object = socket_check(L, 1, 1);
buflen = luaL_optint(L, 2, sizeof buffer);
/* Use dynamically allocated buffer only when necessary. */
bufptr = (buflen > sizeof buffer) ? lua_newuserdata(L, buflen) : &buffer[0];
flags = 0;
status = apr_socket_recvfrom(&address, object->handle, flags, bufptr, &buflen);
if (status != APR_SUCCESS)
return push_error_status(L, status);
/* Convert the socket address to a Lua table. */
lua_newtable(L);
/* Get the IP address in numeric format. */
status = apr_sockaddr_ip_getbuf(ip_addr, sizeof ip_addr, &address);
if (status == APR_SUCCESS)
lua_pushstring(L, ip_addr), lua_setfield(L, -2, "address");
/* Get the port number. */
lua_pushnumber(L, address.port), lua_setfield(L, -2, "port");
/* Get the address family. */
for (i = 0; i < count(family_values); i++)
if (family_values[i] == address.family) {
lua_pushstring(L, family_options[i]);
lua_setfield(L, -2, "family");
break;
}
/* Push the received data. */
lua_pushlstring(L, bufptr, buflen);
/* Return address table and received data. */
return 2;
}
static int socket_shutdown(lua_State *L)
{
const char *options[] = { "read", "write", "both", NULL };
const apr_shutdown_how_e values[] = {
APR_SHUTDOWN_READ, APR_SHUTDOWN_WRITE, APR_SHUTDOWN_READWRITE
};
lua_apr_socket *socket;
apr_status_t status;
apr_shutdown_how_e how;
socket = socket_check(L, 1, 1);
how = values[luaL_checkoption(L, 2, NULL, options)];
status = apr_socket_shutdown(socket->handle, how);
return push_status(L, status);
}
static int socket_opt_get(lua_State *L)
{
apr_status_t status;
lua_apr_socket *object;
apr_int32_t option, value;
object = socket_check(L, 1, 1);
option = option_check(L, 2);
status = apr_socket_opt_get(object->handle, option, &value);
if (status != APR_SUCCESS)
return push_error_status(L, status);
else if (option == APR_SO_SNDBUF || option == APR_SO_RCVBUF)
lua_pushinteger(L, value);
else
lua_pushboolean(L, value);
return 1;
}
static int socket_accept(lua_State *L)
{
lua_apr_socket *server, *client = NULL;
apr_status_t status;
server = socket_check(L, 1, 1);
status = socket_alloc(L, &client);
client->family = server->family;
client->protocol = server->protocol;
if (status == APR_SUCCESS)
status = apr_socket_accept(&client->handle, server->handle, client->pool);
socket_init(L, client);
if (status != APR_SUCCESS)
return push_error_status(L, status);
return 1;
}
static int socket_connect(lua_State *L)
{
lua_apr_socket *object;
apr_sockaddr_t *address;
const char *host;
apr_port_t port;
apr_status_t status;
object = socket_check(L, 1, 1);
host = luaL_checkstring(L, 2);
port = luaL_checkinteger(L, 3);
status = apr_sockaddr_info_get(&address, host, object->family, port, 0, object->pool);
if (status == APR_SUCCESS)
status = apr_socket_connect(object->handle, address);
return push_status(L, status);
}
static int socket_timeout_get(lua_State *L)
{
lua_apr_socket *object;
apr_status_t status;
apr_interval_time_t timeout;
object = socket_check(L, 1, 1);
status = apr_socket_timeout_get(object->handle, &timeout);
if (status != APR_SUCCESS)
return push_error_status(L, status);
else if (timeout <= 0)
lua_pushboolean(L, timeout != 0);
else
lua_pushinteger(L, (lua_Integer) timeout);
return 1;
}
static int
tls_flush(struct wrap_io *wio)
{
struct gnutella_socket *s = wio->ctx;
socket_check(s);
if (s->tls.snarf) {
if (GNET_PROPERTY(tls_debug > 1)) {
g_debug("tls_flush: snarf=%zu host=%s fd=%d",
s->tls.snarf,
host_addr_port_to_string(s->addr, s->port), s->file_desc);
}
(void ) tls_write_intern(wio, NULL, 0);
if (s->tls.snarf)
return -1;
}
return 0;
}
/*
main program
*/
int main(int argc, const char *argv[])
{
sock.set_broadcast();
printf("Starting DSP code\n");
send_storage();
ardupilot_start();
while (true) {
uint64_t now = micros64();
if (now - last_get_storage_us > 1000*1000) {
printf("tick t=%.6f\n", now*1.0e-6f);
ardupilot_heartbeat();
get_storage();
last_get_storage_us = now;
}
socket_check();
usleep(5000);
}
}
static ssize_t
tls_write(struct wrap_io *wio, const void *buf, size_t size)
{
struct gnutella_socket *s = wio->ctx;
ssize_t ret;
socket_check(s);
g_assert(socket_uses_tls(s));
g_assert(NULL != buf);
g_assert(size_is_positive(size));
ret = tls_flush(wio);
if (0 == ret) {
ret = tls_write_intern(wio, buf, size);
if (s->gdk_tag) {
tls_socket_evt_change(s, INPUT_EVENT_WX);
}
}
g_assert(ret == (ssize_t) -1 || (size_t) ret <= size);
tls_signal_pending(s);
return ret;
}
void
tls_free(struct gnutella_socket *s)
{
tls_context_t ctx;
socket_check(s);
ctx = s->tls.ctx;
if (ctx) {
if (ctx->session) {
gnutls_deinit(ctx->session);
}
if (ctx->server_cred) {
gnutls_anon_free_server_credentials(ctx->server_cred);
ctx->server_cred = NULL;
}
if (ctx->client_cred) {
gnutls_anon_free_client_credentials(ctx->client_cred);
ctx->client_cred = NULL;
}
WFREE(ctx);
s->tls.ctx = NULL;
}
}
static inline ssize_t
tls_push(gnutls_transport_ptr ptr, const void *buf, size_t size)
{
struct gnutella_socket *s = ptr;
ssize_t ret;
int saved_errno;
socket_check(s);
g_assert(is_valid_fd(s->file_desc));
ret = s_write(s->file_desc, buf, size);
saved_errno = errno;
tls_signal_pending(s);
if ((ssize_t) -1 == ret) {
tls_set_errno(s, saved_errno);
if (ECONNRESET == saved_errno || EPIPE == saved_errno) {
socket_connection_reset(s);
}
}
tls_transport_debug("tls_push", s, size, ret);
errno = saved_errno;
return ret;
}
static int socket_addr_get(lua_State *L)
{
const char *options[] = { "local", "remote", NULL };
const apr_interface_e values[] = { APR_LOCAL, APR_REMOTE };
lua_apr_socket *object;
apr_sockaddr_t *address;
apr_status_t status;
apr_interface_e which;
char *ip_address;
object = socket_check(L, 1, 1);
which = values[luaL_checkoption(L, 2, "remote", options)];
status = apr_socket_addr_get(&address, which, object->handle);
if (status == APR_SUCCESS)
status = apr_sockaddr_ip_get(&ip_address, address);
if (status != APR_SUCCESS)
return push_error_status(L, status);
lua_pushstring(L, ip_address);
lua_pushinteger(L, address->port);
lua_pushstring(L, address->hostname);
return 3;
}
void
tls_bye(struct gnutella_socket *s)
{
int ret;
socket_check(s);
g_return_if_fail(s->tls.ctx);
g_return_if_fail(s->tls.ctx->session);
if ((SOCK_F_EOF | SOCK_F_SHUTDOWN) & s->flags)
return;
if (tls_flush(&s->wio) && GNET_PROPERTY(tls_debug)) {
g_warning("%s(): tls_flush(fd=%d) failed", G_STRFUNC, s->file_desc);
}
ret = gnutls_bye(s->tls.ctx->session,
SOCK_CONN_INCOMING != s->direction
? GNUTLS_SHUT_WR : GNUTLS_SHUT_RDWR);
if (ret < 0) {
switch (ret) {
case GNUTLS_E_INTERRUPTED:
case GNUTLS_E_AGAIN:
break;
case GNUTLS_E_PULL_ERROR:
case GNUTLS_E_PUSH_ERROR:
/* Logging already done by tls_transport_debug() */
break;
default:
if (GNET_PROPERTY(tls_debug)) {
g_carp("gnutls_bye() failed: host=%s error=%m",
host_addr_port_to_string(s->addr, s->port));
}
}
}
}
/**
* Change the monitoring condition on the socket.
*/
static void
tls_socket_evt_change(struct gnutella_socket *s, inputevt_cond_t cond)
{
socket_check(s);
g_assert(socket_with_tls(s)); /* No USES yet, may not have handshaked */
g_assert(INPUT_EVENT_EXCEPTION != cond);
if (0 == s->gdk_tag)
return;
if (cond != s->tls.cb_cond) {
int saved_errno = errno;
if (GNET_PROPERTY(tls_debug) > 1) {
int fd = socket_evt_fd(s);
g_debug("tls_socket_evt_change: fd=%d, cond=%s -> %s",
fd, inputevt_cond_to_string(s->tls.cb_cond),
inputevt_cond_to_string(cond));
}
inputevt_remove(&s->gdk_tag);
socket_evt_set(s, cond, s->tls.cb_handler, s->tls.cb_data);
errno = saved_errno;
}
}
bool sbbs_t::ftp_put(csi_t* csi, SOCKET ctrl_sock, char* src, char* dest)
{
char cmd[512];
char rsp[512];
char path[MAX_PATH+1];
char buf[4097];
int rd;
int result;
ulong total=0;
SOCKET data_sock;
union xp_sockaddr addr;
socklen_t addr_len;
FILE* fp=NULL;
bool error=false;
struct timeval tv;
fd_set socket_set;
SAFECOPY(path,src);
if(!fexistcase(path))
return(false);
if((data_sock=ftp_data_sock(csi, ctrl_sock, &addr.in))==INVALID_SOCKET) {
bprintf("ftp: failure, line %d",__LINE__);
return(false);
}
if(csi->ftp_mode&CS_FTP_PASV) {
#if 0 // Debug
bprintf("Connecting to %s:%hd\r\n"
,inet_ntoa(addr.in.sin_addr)
,ntohs(addr.in.sin_port));
#endif
if(connect(data_sock,&addr.addr,sizeof(addr.in))!=0) {
bprintf("ftp: failure, line %d",__LINE__);
csi->socket_error=ERROR_VALUE;
close_socket(data_sock);
return(false);
}
}
if((fp=fopen(path,"rb"))==NULL) {
bprintf("ftp: failure, line %d",__LINE__);
close_socket(data_sock);
return(false);
}
sprintf(cmd,"STOR %s",dest);
if(!ftp_cmd(csi,ctrl_sock,cmd,rsp)
|| atoi(rsp)!=150 /* Open data connection */) {
bprintf("ftp: failure, line %d",__LINE__);
close_socket(data_sock);
return(false);
}
if(!(csi->ftp_mode&CS_FTP_PASV)) { /* Normal (Active) FTP */
/* Setup for select() */
tv.tv_sec=TIMEOUT_SOCK_LISTEN;
tv.tv_usec=0;
FD_ZERO(&socket_set);
FD_SET(data_sock,&socket_set);
result=select(data_sock+1,&socket_set,NULL,NULL,&tv);
if(result<1) {
csi->socket_error=ERROR_VALUE;
closesocket(data_sock);
return(false);
}
SOCKET accept_sock;
addr_len=sizeof(addr);
if((accept_sock=accept_socket(data_sock,&addr,&addr_len))
==INVALID_SOCKET) {
csi->socket_error=ERROR_VALUE;
closesocket(data_sock);
return(false);
}
close_socket(data_sock);
data_sock=accept_sock;
}
while(online && !feof(fp)) {
rd=fread(buf,sizeof(char),sizeof(buf),fp);
if(rd<1) /* EOF or READ error */
break;
if(!socket_check(ctrl_sock,NULL,NULL,0))
break; /* Control connection lost */
if(sendsocket(data_sock,buf,rd)<1) {
error=true;
break;
}
total+=rd;
if(csi->ftp_mode&CS_FTP_HASH)
outchar('#');
}
if(csi->ftp_mode&CS_FTP_HASH) {
CRLF;
}
fclose(fp);
close_socket(data_sock);
if(!ftp_cmd(csi,ctrl_sock,NULL,rsp)
|| atoi(rsp)!=226 /* Upload complete */)
return(false);
if(!error)
bprintf("ftp: %lu bytes sent.\r\n", total);
return(!error);
}
bool sbbs_t::ftp_get(csi_t* csi, SOCKET ctrl_sock, char* src, char* dest, bool dir)
{
char cmd[512];
char rsp[512];
char buf[4097];
int rd;
int result;
BOOL data_avail;
ulong total=0;
SOCKET data_sock;
union xp_sockaddr addr;
socklen_t addr_len;
FILE* fp=NULL;
struct timeval tv;
fd_set socket_set;
if((data_sock=ftp_data_sock(csi, ctrl_sock, &addr.in))==INVALID_SOCKET)
return(false);
if(csi->ftp_mode&CS_FTP_PASV) {
#if 0 // Debug
bprintf("Connecting to %s:%hd\r\n"
,inet_ntoa(addr.in.sin_addr)
,ntohs(addr.in.sin_port));
#endif
/* TODO: IPv6 */
if(connect(data_sock,&addr.addr,sizeof(SOCKADDR_IN))!=0) {
csi->socket_error=ERROR_VALUE;
close_socket(data_sock);
return(false);
}
}
if(dir)
sprintf(cmd,"LIST %s",src);
else
sprintf(cmd,"RETR %s",src);
if(!ftp_cmd(csi,ctrl_sock,cmd,rsp)
|| atoi(rsp)!=150 /* Open data connection */) {
close_socket(data_sock);
return(false);
}
if(!(csi->ftp_mode&CS_FTP_PASV)) { /* Normal (Active) FTP */
/* Setup for select() */
tv.tv_sec=TIMEOUT_SOCK_LISTEN;
tv.tv_usec=0;
FD_ZERO(&socket_set);
FD_SET(data_sock,&socket_set);
result=select(data_sock+1,&socket_set,NULL,NULL,&tv);
if(result<1) {
csi->socket_error=ERROR_VALUE;
closesocket(data_sock);
return(false);
}
SOCKET accept_sock;
addr_len=sizeof(addr);
if((accept_sock=accept_socket(data_sock,&addr,&addr_len))
==INVALID_SOCKET) {
csi->socket_error=ERROR_VALUE;
closesocket(data_sock);
return(false);
}
close_socket(data_sock);
data_sock=accept_sock;
}
if(!dir)
if((fp=fopen(dest,"wb"))==NULL) {
close_socket(data_sock);
return(false);
}
while(online) {
if(!socket_check(ctrl_sock,NULL,NULL,0))
break; /* Control connection lost */
if(!socket_check(data_sock,&data_avail,NULL,100))
break; /* Data connection lost */
if(!data_avail)
continue;
if((rd=recv(data_sock, buf, sizeof(buf)-1, 0))<1)
break;
if(dir) {
buf[rd]=0;
bputs(buf);
} else
fwrite(buf,1,rd,fp);
total+=rd;
if(!dir && csi->ftp_mode&CS_FTP_HASH)
outchar('#');
}
if(!dir && csi->ftp_mode&CS_FTP_HASH) {
CRLF;
}
if(fp!=NULL)
fclose(fp);
close_socket(data_sock);
if(!ftp_cmd(csi,ctrl_sock,NULL,rsp)
|| atoi(rsp)!=226 /* Download complete */)
return(false);
bprintf("ftp: %lu bytes received.\r\n", total);
return(true);
}
/* FTP Command/Response function */
bool sbbs_t::ftp_cmd(csi_t* csi, SOCKET sock, const char* cmdsrc, char* rsp)
{
char cmd[512];
int len;
BOOL data_avail;
time_t start;
if(cmdsrc!=NULL) {
sprintf(cmd,"%s\r\n",cmdsrc);
if(csi->ftp_mode&CS_FTP_ECHO_CMD)
bputs(cmd);
len=strlen(cmd);
if(sendsocket(sock,cmd,len)!=len) {
csi->socket_error=ERROR_VALUE;
return(FALSE);
}
}
if(rsp!=NULL) {
int rd;
char ch;
while(1) {
rd=0;
start=time(NULL);
while(rd<500) {
if(!online)
return(FALSE);
if(!socket_check(sock,&data_avail,NULL,1000))
return(FALSE);
if(!data_avail) {
if(time(NULL)-start>TIMEOUT_FTP_RESPONSE) {
lprintf(LOG_WARNING,"!ftp_cmd: TIMEOUT_FTP_RESPONSE (%d) exceeded"
,TIMEOUT_FTP_RESPONSE);
return(FALSE);
}
continue;
}
if(recv(sock, &ch, 1, 0)!=1) {
csi->socket_error=ERROR_VALUE;
return(FALSE);
}
if(ch=='\n' && rd>=1)
break;
rsp[rd++]=ch;
}
rsp[rd-1]=0;
if(csi->ftp_mode&CS_FTP_ECHO_RSP)
bprintf("%s\r\n",rsp);
if(rsp[0]!=' ' && rsp[3]!='-')
break;
}
}
return(TRUE);
}
