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https://github.com/markqvist/tncattach.git
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Cleaned up TCP options
This commit is contained in:
Mark Qvist
parent
eae91f349b
commit
c2beeee944
93
tncattach.c
93
tncattach.c
@ -8,8 +8,8 @@
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#include <time.h>
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#include "Constants.h"
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#include "Serial.h"
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#include "Tcp.h"
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#include "KISS.h"
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#include "TCP.h"
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#include "TAP.h"
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#define BAUDRATE_DEFAULT 0
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@ -35,9 +35,13 @@ bool noup = false;
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bool daemonize = false;
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bool set_ipv4 = false;
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bool set_netmask = false;
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bool use_net_kiss = false;
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bool kiss_over_tcp = false;
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char* ipv4_addr;
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char* netmask;
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char* tcp_host;
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int tcp_port;
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int mtu;
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int device_type = IF_TUN;
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@ -47,7 +51,7 @@ time_t last_id = 0;
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bool tx_since_last_id = false;
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void cleanup(void) {
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if (use_net_kiss) {
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if (kiss_over_tcp) {
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close_tcp(attached_tnc);
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} else {
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close_port(attached_tnc);
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@ -257,21 +261,23 @@ void read_loop(void) {
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exit(1);
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}
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const char *argp_program_version = "tncattach 0.1.7";
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const char *argp_program_version = "tncattach 0.1.8";
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const char *argp_program_bug_address = "<mark@unsigned.io>";
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static char doc[] = "\r\nAttach TNC devices as system network interfaces\vTo attach the TNC connected to /dev/ttyUSB0 as an ethernet device with an MTU of 512 bytes and assign an IPv4 address, while filtering IPv6 traffic, use:\r\n\r\n\ttncattach /dev/ttyUSB0 115200 -m 512 -e --noipv6 --ipv4 10.0.0.1/24\r\n\r\nStation identification can be performed automatically to comply with Part 97 rules. See the README for a complete description. Use the --id and --interval options, which should commonly be set to your callsign, and 600 seconds.";
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static char args_doc[] = "port baudrateOrPort";
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static char args_doc[] = "port baudrate";
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static struct argp_option options[] = {
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{ "mtu", 'm', "MTU", 0, "Specify interface MTU"},
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{ "daemon", 'd', 0, 0, "Run tncattach as a daemon"},
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{ "ethernet", 'e', 0, 0, "Create a full ethernet device"},
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{ "ipv4", 'i', "IP_ADDRESS", 0, "Configure an IPv4 address on interface"},
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{ "noipv6", 'n', 0, 0, "Filter IPv6 traffic from reaching TNC"},
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{ "noup", 1, 0, 0, "Only create interface, don't bring it up"},
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{ "interval", 't', "SECONDS", 0, "Maximum interval between station identifications"},
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{ "id", 's', "CALLSIGN", 0, "Station identification data"},
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{ "verbose", 'v', 0, 0, "Enable verbose output"},
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{ "kisstcp", 'o', 0, 0, "Does not use Serial but TCP connexion"},
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{ "mtu", 'm', "MTU", 0, "Specify interface MTU", 1},
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{ "ethernet", 'e', 0, 0, "Create a full ethernet device", 2},
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{ "ipv4", 'i', "IP_ADDRESS", 0, "Configure an IPv4 address on interface", 3},
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{ "noipv6", 'n', 0, 0, "Filter IPv6 traffic from reaching TNC", 4},
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{ "noup", 1, 0, 0, "Only create interface, don't bring it up", 5},
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{ "kisstcp", 'T', 0, 0, "Use KISS over TCP instead of serial port", 6},
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{ "tcphost", 'H', "TCP_HOST", 0, "Host to connect to when using KISS over TCP", 7},
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{ "tcpport", 'P', "TCP_PORT", 0, "TCP port when using KISS over TCP", 8},
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{ "interval", 't', "SECONDS", 0, "Maximum interval between station identifications", 9},
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{ "id", 's', "CALLSIGN", 0, "Station identification data", 10},
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{ "daemon", 'd', 0, 0, "Run tncattach as a daemon", 11},
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{ "verbose", 'v', 0, 0, "Enable verbose output", 12},
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{ 0 }
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};
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@ -282,7 +288,8 @@ struct arguments {
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char *id;
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bool valid_id;
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int id_interval;
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int baudrateOrPort;
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int baudrate;
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int tcpport;
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int mtu;
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bool tap;
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bool daemon;
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@ -291,7 +298,9 @@ struct arguments {
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bool set_netmask;
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bool noipv6;
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bool noup;
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bool useNetKiss;
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bool kiss_over_tcp;
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bool set_tcp_host;
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bool set_tcp_port;
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};
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static error_t parse_opt(int key, char *arg, struct argp_state *state) {
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@ -467,8 +476,19 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
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arguments->verbose = false;
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break;
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case 'o':
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arguments->useNetKiss = true;
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case 'T':
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arguments->kiss_over_tcp = true;
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break;
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case 'H':
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arguments->set_tcp_host = true;
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tcp_host = (char*)malloc(strlen(arg)+1);
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strcpy(tcp_host, arg);
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break;
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case 'P':
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arguments->set_tcp_port = true;
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tcp_port = atoi(arg);
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break;
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case 1:
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@ -485,7 +505,12 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
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case ARGP_KEY_END:
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// Check if there's too few text arguments
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if (state->arg_num < N_ARGS) argp_usage(state);
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if (!arguments->kiss_over_tcp && state->arg_num < N_ARGS) argp_usage(state);
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// Check if text arguments were given when
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// KISS over TCP was specified
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if (arguments->kiss_over_tcp && state->arg_num != 0) argp_usage(state);
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break;
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default:
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@ -528,7 +553,7 @@ int main(int argc, char **argv) {
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struct arguments arguments;
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signal(SIGINT, signal_handler);
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arguments.baudrateOrPort = BAUDRATE_DEFAULT;
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arguments.baudrate = BAUDRATE_DEFAULT;
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arguments.mtu = MTU_DEFAULT;
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arguments.tap = false;
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arguments.verbose = false;
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@ -541,7 +566,18 @@ int main(int argc, char **argv) {
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arguments.valid_id = false;
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argp_parse(&argp, argc, argv, 0, 0, &arguments);
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arguments.baudrateOrPort = atoi(arguments.args[1]);
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if (arguments.kiss_over_tcp) kiss_over_tcp = true;
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if (!kiss_over_tcp) {
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arguments.baudrate = atoi(arguments.args[1]);
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} else {
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if (!(arguments.set_tcp_host && arguments.set_tcp_port)) {
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if (!arguments.set_tcp_host) printf("Error: KISS over TCP was requested, but no host was specified\r\n");
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if (!arguments.set_tcp_port) printf("Error: KISS over TCP was requested, but no port was specified\r\n");
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exit(1);
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}
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}
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if (arguments.daemon) daemonize = true;
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if (arguments.verbose) verbose = true;
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@ -550,7 +586,6 @@ int main(int argc, char **argv) {
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if (arguments.set_ipv4) set_ipv4 = true;
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if (arguments.set_netmask) set_netmask = true;
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if (arguments.noup) noup = true;
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if (arguments.useNetKiss) use_net_kiss = true;
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mtu = arguments.mtu;
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if (arguments.id_interval >= 0) {
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@ -571,24 +606,28 @@ int main(int argc, char **argv) {
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attached_if = open_tap();
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if (arguments.useNetKiss) {
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attached_tnc = open_tcp(arguments.args[0], arguments.baudrateOrPort);
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} else {
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if (!arguments.kiss_over_tcp) {
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attached_tnc = open_port(arguments.args[0]);
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if (!setup_port(attached_tnc, arguments.baudrateOrPort)) {
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if (!setup_port(attached_tnc, arguments.baudrate)) {
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printf("Error during serial port setup");
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return 0;
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}
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} else {
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attached_tnc = open_tcp(tcp_host, tcp_port);
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}
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printf("TNC interface configured as %s\r\n", if_name);
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fds[IF_FD_INDEX].fd = attached_if;
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fds[IF_FD_INDEX].events = POLLIN;
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fds[TNC_FD_INDEX].fd = attached_tnc;
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fds[TNC_FD_INDEX].events = POLLIN;
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if (daemonize) {
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become_daemon();
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syslog(LOG_NOTICE, "tncattach daemon running");
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}
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read_loop();
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return 0;
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