mirror of
https://github.com/mmueller41/genode.git
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ealanos: Rewrote Kuori remote shell component to use Hoitaja's new Shell service. This removes the limitations of the Launcher session that only allowed start nodes to be 640 characters long.
This commit is contained in:
Michael Mueller
@@ -1,352 +1,216 @@
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#include <base/heap.h>
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#include "base/attached_ram_dataspace.h"
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#include <base/attached_rom_dataspace.h>
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#include "base/ram_allocator.h"
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#include <libc/component.h>
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#include "region_map/region_map.h"
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#include "sys/_pthreadtypes.h"
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#include "util/xml_node.h"
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#include <base/log.h>
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#include <base/log.h>
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#include <lwip/lwip_genode_init.h>
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#include <base/attached_rom_dataspace.h>
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#include <lwip/nic_netif.h>
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#include <cstring>
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#include <timer_session/connection.h>
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#include <libc/component.h>
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#include <ealanos/laucher/connection.h>
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#include <internal/thread_create.h>
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#include <cstdio>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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namespace Lwip {
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#include <unistd.h>
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extern "C" {
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#include <fcntl.h>
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#include <lwip/arch.h>
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#include <sys/socket.h>
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#include <lwip/opt.h>
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#include <netinet/in.h>
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#include <lwip/tcp.h>
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#include <arpa/inet.h>
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#include <lwip/dns.h>
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#include <errno.h>
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#include <lwip/ip_addr.h>
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#include <ealanos/shell/connection.h>
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#include "protocol.h"
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namespace Ealan {
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namespace Kuori {
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class Server;
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}
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}
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}
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}
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namespace Ealan::Kuori {
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static void print(Genode::Output &output, sockaddr_in const &addr)
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using namespace Genode;
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class Main;
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}
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class Ealan::Kuori::Main
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{
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{
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private:
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Genode::print(output, (ntohl(addr.sin_addr.s_addr) >> 24) & 0xff);
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Heap &_heap;
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output.out_string(".");
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Genode::print(output, (ntohl(addr.sin_addr.s_addr) >> 16) & 0xff);
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output.out_string(".");
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Genode::print(output, (ntohl(addr.sin_addr.s_addr) >> 8) & 0xff);
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output.out_string(".");
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Genode::print(output, (ntohl(addr.sin_addr.s_addr) >> 0) & 0xff);
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output.out_string(":");
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Genode::print(output, ntohs(addr.sin_port));
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}
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class Ealan::Kuori::Server
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{
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private:
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Ealan::Launcher_connection &_hoitaja;
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Libc::Env &_env;
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Genode::Attached_rom_dataspace _config_rom {_env, "config"};
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Genode::Xml_node _config{_config_rom.xml()};
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Ealan::Shell::Connection _shell{_env};
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struct Wakeup_scheduler : Lwip::Nic_netif::Wakeup_scheduler
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void _die(const char *reason){ perror(reason); _env.parent().exit(1); }
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{
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Lwip::Nic_netif *nic{nullptr};
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void schedule_nic_server_wakeup() override
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struct handler {
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{
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pthread_t *thread;
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nic->wakeup_nic_server();
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Server *server;
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}
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int cd;
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};
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void set_nic(Lwip::Nic_netif *nic)
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char *_config_ptr;
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{
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this->nic = nic;
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}
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Wakeup_scheduler() = default;
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public:
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} _wakeup_scheduler;
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enum states
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using Command = Ealan::Kuori::Package_header::Command;
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{
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using Header = Ealan::Kuori::Package_header;
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NONE = 0,
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using State = Ealan::Kuori::Package_header::State;
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ACCEPTED,
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RECEIVED,
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CLOSING
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};
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struct state
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{
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Server(Libc::Env &env) : _env(env) {}
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uint8_t state;
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uint8_t retries;
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struct Lwip::tcp_pcb *pcb;
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struct Lwip::pbuf *p;
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};
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Lwip::tcp_pcb *listen_socket;
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uint16_t _port{8080};
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struct Tcp_connection
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static void *handle(void *args)
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{
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{
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static Main *kuori;
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struct handler *h = reinterpret_cast<struct handler *>(args);
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/**
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h->server->handle_connection(h->cd);
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* @brief Free state and lwip objects
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delete h->thread;
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*
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delete h;
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* @param s
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*/
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static void free(struct state *s)
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{
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if (s != nullptr) {
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if (s->p) {
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Lwip::pbuf_free(s->p);
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}
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Lwip::mem_free(s);
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}
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}
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static void close(struct Lwip::tcp_pcb *tpcb, struct state *s)
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return nullptr;
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{
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}
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Lwip::tcp_arg(tpcb, nullptr);
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Lwip::tcp_sent(tpcb, nullptr);
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Lwip::tcp_recv(tpcb, nullptr);
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Lwip::tcp_err(tpcb, nullptr);
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Lwip::tcp_poll(tpcb, nullptr, 0);
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free(s);
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void handle_connection(int cd)
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Lwip::tcp_close(tpcb);
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{
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}
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Header header;
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while (true) {
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int ret = read(cd, &header, sizeof(header));
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static void send(struct Lwip::tcp_pcb *tpcb, struct state *s)
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if (!ret) break;
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{
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struct Lwip::pbuf *ptr;
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Lwip::err_t wr_err = Lwip::ERR_OK;
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while ((wr_err == Lwip::ERR_OK) && (s->p != nullptr))
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if (ret > 0) {
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{
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Request request{header.command, header.length, cd};
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ptr = s->p;
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Genode::log("size of command: ", sizeof(Command));
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Genode::log("CMD=", static_cast<unsigned int>(request.command), " CD=", cd, " LEN=", header.length);
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process_request(request);
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}
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}
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wr_err = Lwip::tcp_write(tpcb, ptr->payload, ptr->len, 3);
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}
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if (wr_err == Lwip::ERR_OK) {
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uint16_t plen;
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plen = ptr->len;
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void process_request(Request &request)
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s->p = ptr->next;
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{
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switch (request.command) {
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case Command::BEGIN:
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{
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/* Acknowledge the new transaction */
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if (s->p) {
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Header *ack = new Header {Command::ACK, State::ACCEPT, static_cast<std::uint32_t>(::strlen(_config_ptr)) };
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Lwip::pbuf_ref(s->p);
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write(request.cd, ack, sizeof(Header));
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}
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Lwip::pbuf_free(ptr);
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Lwip::tcp_recved(tpcb, plen);
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} else if (wr_err == Lwip::ERR_MEM) {
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s->p = ptr;
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} else {
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Genode::error("Encountered LwIP error code ", static_cast<signed int>(wr_err));
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}
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}
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}
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static void error(void *arg, Lwip::err_t error)
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/* Send habitat configuration to client */
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{
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write(request.cd, _config_ptr, ::strlen(_config_ptr));
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struct state *s;
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break;
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}
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LWIP_UNUSED_ARG(error);
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case Command::COMMIT:
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{
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char *buf = new char[request.length];
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Genode::log("Commit: Awaiting ", request.length, " bytes");
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std::uint32_t bytes = 0;
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int rc = 0;
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s = static_cast<struct state *>(arg);
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while (bytes < request.length) {
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rc = read(request.cd, &buf[bytes], request.length);
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if (rc == 0)
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break;
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Genode::log("Read ", rc, " bytes.");
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bytes += rc;
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}
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free(s);
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}
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static Lwip::err_t poll(void *arg, struct Lwip::tcp_pcb *tpcb)
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memcpy(_config_ptr, buf, request.length);
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{
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_config_ptr[bytes] = '\0';
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Lwip::err_t rc;
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struct state *s;
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s = static_cast<struct state *>(arg);
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printf("Read new configuration:\n %s\n", _config_ptr);
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if (s) {
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if (s->p) {
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send(tpcb, s);
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} else {
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if (s->state == CLOSING) {
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close(tpcb, s);
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}
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}
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rc = Lwip::ERR_OK;
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} else {
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Lwip::tcp_abort(tpcb);
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rc = Lwip::ERR_ABRT;
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}
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return rc;
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}
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static Lwip::err_t sent(void *arg, struct Lwip::tcp_pcb *tpcb, [[maybe_unused]] Lwip::u16_t len)
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_shell.commit();
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{
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break;
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struct state *s;
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}
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default:
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{
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return;
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}
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}
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}
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s = static_cast<struct state *>(arg);
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void run()
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s->retries = 0;
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{
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int rc = 0;
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if (s->p) {
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Genode::log("Kuori v1.0 - Remote Shell for EalánOS");
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Lwip::tcp_sent(tpcb, sent);
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send(tpcb, s);
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} else {
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if (s->state == CLOSING) {
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close(tpcb, s);
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}
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}
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return Lwip::ERR_OK;
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}
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static Lwip::err_t receive(void *arg, struct Lwip::tcp_pcb *tpcb, struct Lwip::pbuf *p, Lwip::err_t err)
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Genode::Ram_dataspace_capability cap = _shell.connect();
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{
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Genode::Region_map::Attr attr{};
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struct state *s;
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attr.writeable = true;
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Lwip::err_t rc = Lwip::ERR_OK;
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s = static_cast<struct state *>(arg);
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_config_ptr = _env.rm().attach(cap, attr).convert<char *>(
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[&](Genode::Region_map::Range r) { return reinterpret_cast<char*>(r.start); }, [&] (Genode::Region_map::Attach_error) { return nullptr; });
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if (!p) {
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s->state = CLOSING;
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if (!s->p) {
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close(tpcb, s);
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} else {
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send(tpcb, s);
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}
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rc = Lwip::ERR_OK;
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} else if (err != Lwip::ERR_OK) {
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rc = err;
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} else if (s->state == ACCEPTED) {
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s->state = RECEIVED;
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kuori->parse_and_launch(tpcb, p, s);
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}
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else if (s->state == RECEIVED)
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{
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if (!s->p) {
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s->p = p;
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kuori->parse_and_launch(tpcb, p, s);
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}
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else
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{
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struct Lwip::pbuf *ptr;
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ptr = s->p;
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Lwip::pbuf_cat(ptr, p);
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}
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rc = Lwip::ERR_OK;
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}
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else
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{
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Lwip::tcp_recved(tpcb, p->tot_len);
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Lwip::pbuf_free(p);
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rc = Lwip::ERR_OK;
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}
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return rc;
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if (!_config_ptr) _die("Failed mapping habitat config");
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}
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static Lwip::err_t accept([[maybe_unused]] void *arg, struct Lwip::tcp_pcb *newpcb, Lwip::err_t err)
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Genode::log("Mapped habitat configuration");
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{
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Lwip::err_t rc;
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struct state *s;
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LWIP_UNUSED_ARG(arg);
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printf("%s\n", _config_ptr);
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int const sd = socket(AF_INET, SOCK_STREAM, 0);
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if (sd == -1) { _die("socket"); }
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if ((err != Lwip::ERR_OK) || (newpcb == nullptr)) {
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unsigned const port = _config.attribute_value("port", 8080U);
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return Lwip::ERR_VAL;
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}
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s = static_cast<struct state *>(Lwip::mem_malloc(sizeof(struct state)));
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sockaddr_in const addr{0, AF_INET, htons(port), {INADDR_ANY}, {INADDR_ANY}};
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if (s) {
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sockaddr const *paddr = reinterpret_cast<sockaddr const *>(&addr);
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s->state = ACCEPTED;
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s->pcb = newpcb;
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s->retries = 0;
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s->p = nullptr;
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Lwip::tcp_arg(newpcb, s);
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int const on = 1;
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Lwip::tcp_recv(newpcb, receive);
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rc = setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
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Lwip::tcp_err(newpcb, error);
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Lwip::tcp_poll(newpcb, poll, 0);
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Lwip::tcp_sent(newpcb, sent);
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rc = Lwip::ERR_OK;
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if (rc) _die("setsockopt");
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Genode::log("Accepted new connection from ", const_cast<const char*>(Lwip::ipaddr_ntoa(&newpcb->remote_ip)));
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rc = bind(sd, paddr, sizeof(addr));
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}
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if (rc == -1) _die("bind");
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else
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{
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rc = Lwip::ERR_MEM;
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}
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|
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return rc;
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||||||
}
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|
||||||
|
|
||||||
};
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rc = listen(sd, SOMAXCONN);
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if (rc == -1) _die("listen");
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void init()
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|
||||||
{
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listen_socket = Lwip::tcp_new_ip_type(Lwip::IPADDR_TYPE_ANY);
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|
||||||
|
|
||||||
if (!listen_socket) {
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Genode::log("Kuori service up and running.");
|
||||||
Genode::error("Failed to create server socket.");
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|
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}
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|
||||||
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|
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Lwip::err_t err;
|
while (true) {
|
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err = Lwip::tcp_bind(listen_socket, &Lwip::ip_addr_any, _port);
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sockaddr_in caddr;
|
||||||
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socklen_t scaddr = sizeof(caddr);
|
||||||
if (err == Lwip::ERR_OK) {
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sockaddr *pcaddr = reinterpret_cast<sockaddr *>(&caddr);
|
||||||
listen_socket = Lwip::tcp_listen_with_backlog(listen_socket, 255);
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|
||||||
Lwip::tcp_accept(listen_socket, Tcp_connection::accept);
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|
||||||
} else {
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|
||||||
Genode::error("Failed to bind socket.");
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|
||||||
}
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|
||||||
|
|
||||||
Tcp_connection::kuori = this;
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int const cd = accept(sd, pcaddr, &scaddr);
|
||||||
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if (cd == -1) _die("accept");
|
||||||
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|
||||||
Genode::log("Kuori v0.1 - Remote shell for EalánOS");
|
Genode::log("New connection from ", caddr);
|
||||||
}
|
struct handler *handler = new struct handler();
|
||||||
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handler->cd = cd;
|
||||||
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handler->server = this;
|
||||||
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handler->thread = new pthread_t();
|
||||||
|
|
||||||
Lwip::Nic_netif _netif;
|
Genode::String<32> const name {"kuori#", caddr};
|
||||||
|
|
||||||
public:
|
Libc::pthread_create_from_session(handler->thread, Server::handle, handler, 8*4096, name.string(), &_env.cpu(), _env.cpu().affinity_space().location_of_index(0));
|
||||||
Main(Env &env, Genode::Heap &heap, Xml_node config, Ealan::Launcher_connection &hoitaja) : _heap(heap), _hoitaja(hoitaja), _wakeup_scheduler(), _netif(env, _heap, config, _wakeup_scheduler) {
|
}
|
||||||
|
}
|
||||||
_wakeup_scheduler.set_nic(&_netif);
|
|
||||||
init();
|
|
||||||
}
|
|
||||||
|
|
||||||
void parse_and_launch(Lwip::tcp_pcb *tpcb, Lwip::pbuf *p, state *state)
|
|
||||||
{
|
|
||||||
try {
|
|
||||||
Genode::log("Parsing input of length ", p->len);
|
|
||||||
Genode::log(static_cast<const char *>(p->payload));
|
|
||||||
Xml_node start_node(static_cast<char *>(p->payload));
|
|
||||||
//Genode::log(start_node);
|
|
||||||
|
|
||||||
Genode::String<90> name = start_node.attribute_value("name", Genode::String<90>());
|
|
||||||
char msg[120];
|
|
||||||
|
|
||||||
std::sprintf(msg, "Lauching %s\n", name.string());
|
|
||||||
|
|
||||||
Genode::String<640> cell_cfg(static_cast<const char*>(p->payload));
|
|
||||||
Genode::log(cell_cfg);
|
|
||||||
_hoitaja.launch(cell_cfg);
|
|
||||||
|
|
||||||
Lwip::pbuf *response_buffer = Lwip::pbuf_alloc(Lwip::PBUF_TRANSPORT, static_cast<Lwip::u16_t>(Genode::strlen(msg)), Lwip::PBUF_RAM);
|
|
||||||
|
|
||||||
Lwip::pbuf_take(response_buffer, msg, static_cast<Lwip::u16_t>(Genode::strlen(msg)));
|
|
||||||
|
|
||||||
state->p = response_buffer;
|
|
||||||
Tcp_connection::send(tpcb, state);
|
|
||||||
}
|
|
||||||
catch (Genode::Xml_attribute::Invalid_syntax)
|
|
||||||
{
|
|
||||||
Genode::error("Invalid config supplied.");
|
|
||||||
Genode::String<100> response("Invalid cell configuration.\n");
|
|
||||||
|
|
||||||
Lwip::pbuf *response_buffer = Lwip::pbuf_alloc(Lwip::PBUF_TRANSPORT, static_cast<Lwip::u16_t>(response.length()), Lwip::PBUF_RAM);
|
|
||||||
Lwip::pbuf_take(response_buffer, response.string(), static_cast<Lwip::u16_t>(response.length()));
|
|
||||||
|
|
||||||
state->p = response_buffer;
|
|
||||||
Tcp_connection::send(tpcb, state);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
};
|
};
|
||||||
|
|
||||||
Ealan::Kuori::Main *Ealan::Kuori::Main::Tcp_connection::kuori;
|
|
||||||
|
|
||||||
void Libc::Component::construct(Libc::Env &env)
|
void Libc::Component::construct(Libc::Env &env)
|
||||||
{
|
{
|
||||||
Genode::Attached_rom_dataspace _config{env, "config"};
|
static Ealan::Kuori::Server kuori(env);
|
||||||
Genode::Xml_node config = _config.xml();
|
|
||||||
|
|
||||||
static Genode::Heap heap{env.ram(), env.rm()};
|
Libc::with_libc([&]() {
|
||||||
|
kuori.run();
|
||||||
static Timer::Connection timer{env};
|
});
|
||||||
|
}
|
||||||
Lwip::genode_init(heap, timer);
|
|
||||||
|
|
||||||
Genode::Thread *myself = Genode::Thread::myself();
|
|
||||||
Genode::Affinity::Location loc = myself->affinity();
|
|
||||||
Genode::Affinity affinity(env.cpu().affinity_space(), loc);
|
|
||||||
|
|
||||||
static Ealan::Launcher_connection hoitaja{env, affinity};
|
|
||||||
|
|
||||||
static Ealan::Kuori::Main kuori(env, heap, config, hoitaja);
|
|
||||||
}
|
|
||||||
|
|||||||
36
repos/ealanos/src/app/kuori/protocol.h
Normal file
36
repos/ealanos/src/app/kuori/protocol.h
Normal file
@@ -0,0 +1,36 @@
|
|||||||
|
#ifndef __EALANOS__SRC__APP__KUORI__PROTOCOL_H_
|
||||||
|
#define __EALANOS__SRC__APP__KUORI__PROTOCOL_H_
|
||||||
|
|
||||||
|
#include <cstdint>
|
||||||
|
|
||||||
|
namespace Ealan
|
||||||
|
{
|
||||||
|
namespace Kuori
|
||||||
|
{
|
||||||
|
using Handle = std::uint16_t;
|
||||||
|
|
||||||
|
struct Package_header {
|
||||||
|
enum Command { BEGIN, COMMIT, ACK };
|
||||||
|
|
||||||
|
enum State {
|
||||||
|
ACCEPT,
|
||||||
|
FAILED,
|
||||||
|
SUCCESS,
|
||||||
|
WAIT
|
||||||
|
};
|
||||||
|
|
||||||
|
Command command;
|
||||||
|
State state;
|
||||||
|
std::uint32_t length;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct Request {
|
||||||
|
Package_header::Command command;
|
||||||
|
std::uint32_t length;
|
||||||
|
int cd;
|
||||||
|
};
|
||||||
|
}
|
||||||
|
// namespace Kuori
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
@@ -1,22 +1,8 @@
|
|||||||
SRC_CC = main.cc
|
SRC_CC = main.cc
|
||||||
SRC_CC += vfs.cc printf.cc rand.cc sys_arch.cc
|
|
||||||
TARGET = kuori
|
TARGET = kuori
|
||||||
|
|
||||||
LIBPORTS_DIR = $(REP_DIR)/../libports
|
INC_DIR += $(call select_from_repositories,src/lib/libc)
|
||||||
VFS_DIR = $(LIBPORTS_DIR)/src/lib/vfs/lwip
|
INC_DIR += $(call select_from_repositories,src/lib/libc)/spec/x86_64
|
||||||
vpath %.cc $(VFS_DIR)
|
|
||||||
|
|
||||||
|
|
||||||
LWIP_PORT_DIR := $(call select_from_ports,lwip)
|
|
||||||
LWIPDIR := $(LWIP_PORT_DIR)/src/lib/lwip/src
|
|
||||||
INC_DIR += $(LWIP_PORT_DIR)/include/lwip \
|
|
||||||
$(LWIPDIR)/include \
|
|
||||||
$(LWIPDIR)/include/ipv4 \
|
|
||||||
$(LWIPDIR)/include/api \
|
|
||||||
$(LWIPDIR)/include/netif \
|
|
||||||
$(LIBPORTS_DIR)/src/lib/lwip/include \
|
|
||||||
$(LIBPORTS_DIR)/src/lib/vfs \
|
|
||||||
$(LIBPORTS_DIR)/src/lib/vfs/lwip
|
|
||||||
|
|
||||||
CC_OPT += -Wno-error=conversion -Wno-error=effc++
|
CC_OPT += -Wno-error=conversion -Wno-error=effc++
|
||||||
LIBS += base libm libc lwip stdcxx
|
LIBS += base libm libc lwip stdcxx
|
||||||
Reference in New Issue
Block a user