109 lines
3 KiB
C
109 lines
3 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include "tor_ctl.h"
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#include "evt_core.h"
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#include "net_tools.h"
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void create_onion_services(struct tor_os_str* tos, struct tor_ctl* tctl, uint16_t* ports, int ports_count) {
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tor_os_create (tos, "onion_services.pub", "onion_services.txt", ports_count);
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tor_os_read (tos);
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int err = 0;
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err = tor_ctl_connect (tctl, "127.0.0.1", "9051");
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if (err < 0) {
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fprintf(stderr, "Unable to open Tor Socket\n");
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exit(EXIT_FAILURE);
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}
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err = tor_ctl_add_onion (tctl, tos, ports);
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if (err != 0) {
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fprintf(stderr, "Unable to create Onion Services (error: %d)\n", err);
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exit(EXIT_FAILURE);
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}
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}
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int on_tcp(struct evt_core_ctx* ctx, struct evt_core_fdinfo* fdinfo) {
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char buffer[1500];
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ssize_t nread, nwritten;
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struct sockaddr_in addr;
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socklen_t addrlen = sizeof(addr);
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nread = recvfrom(fdinfo->fd, buffer, sizeof(buffer), MSG_TRUNC, (struct sockaddr*)&addr, &addrlen);
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if (nread == -1 && errno == EAGAIN) return 1; // Read done
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if (nread <= 0 || nread > sizeof(buffer)) {
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fprintf(stderr, "Message is either truncated or an error occured. nread=%ld\n", nread);
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perror("read errno");
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exit(EXIT_FAILURE);
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}
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nwritten = sendto(fdinfo->fd, buffer, nread, 0, (struct sockaddr*)&addr, addrlen);
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// @FIXME don't support EAGAIN on write. Could be intended, you don't think so?
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if (nwritten != nread) {
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fprintf(stderr, "Didn't write the same number of bytes as read. nread=%ld, nwritten=%ld\n", nread, nwritten);
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perror("write errno");
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exit(EXIT_FAILURE);
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}
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return 0;
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}
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int main(int argc, char** argv) {
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setvbuf(stdout, NULL, _IONBF, 0);
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printf("~ torecho ~\n");
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int tcp_serv_sock = 0;
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struct evt_core_ctx evts = {0};
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uint16_t ports = {7500};
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int port_count = sizeof(ports[0]) / sizeof(ports);
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struct tor_os_str tos;
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struct tor_ctl tctl;
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// 1. Register categories
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struct evt_core_cat tcp_co = {
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.app_ctx = NULL,
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.free_app_ctx = NULL,
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.cb = on_tcp_co,
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.err_cb = NULL,
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.name = "tcp-all",
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.flags = EPOLLIN,
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.socklist = NULL
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};
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struct evt_core_cat tcp_all = {
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.app_ctx = NULL,
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.free_app_ctx = NULL,
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.cb = on_tcp,
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.err_cb = NULL,
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.name = "tcp-all",
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.flags = EPOLLIN | EPOLLOUT | EPOLLET,
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.socklist = NULL
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};
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evt_core_init(&evts);
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evt_core_add_cat(&evts, &tcp_co);
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evt_core_add_cat(&evts, &tcp_all);
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printf("--- Categories created\n");
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// 2. Create or load onion services
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create_onion_services (&tos, &tctl, ports, ports_count);
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printf("--- Onion services created\n");
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// 3. Create TCP server
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tcp_serv_sock = create_tcp_server ("127.0.0.1", ports[0]);
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char url[1024];
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struct evt_core_cat cat = {0};
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struct evt_core_fdinfo fdinfo = {0};
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fdinfo.cat = &cat;
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fdinfo.url = url;
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fdinfo.fd = udp_sock;
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sprintf(url, "tcp:all:127.0.0.1:%s", port);
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fdinfo.cat->name = "tcp-all";
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evt_core_add_fd(&evts, &fdinfo);
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printf("--- TCP server is listening\n");
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// 4. Start main loop
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evt_core_loop (&evts);
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return 0;
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}
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