int main(void) {
struct sq_context *ctx;
const char *options[] = {"listening_ports", LISTENING_PORT, NULL};
ctx = sq_start(callback, NULL, options);
pause();
return 0;
}
static void start_squeasel(int argc, char *argv[]) {
struct sq_callbacks callbacks;
char *options[MAX_OPTIONS];
int i;
// Edit passwords file if -A option is specified
if (argc > 1 && !strcmp(argv[1], "-A")) {
if (argc != 6) {
show_usage_and_exit();
}
exit(sq_modify_passwords_file(argv[2], argv[3], argv[4], argv[5]) ?
EXIT_SUCCESS : EXIT_FAILURE);
}
// Show usage if -h or --help options are specified
if (argc == 2 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))) {
show_usage_and_exit();
}
options[0] = NULL;
set_option(options, "document_root", ".");
// Update config based on command line arguments
process_command_line_arguments(argv, options);
// Make sure we have absolute paths for files and directories
// https://github.com/cloudera/squeasel/issues/181
set_absolute_path(options, "document_root", argv[0]);
set_absolute_path(options, "put_delete_auth_file", argv[0]);
set_absolute_path(options, "cgi_interpreter", argv[0]);
set_absolute_path(options, "access_log_file", argv[0]);
set_absolute_path(options, "error_log_file", argv[0]);
set_absolute_path(options, "global_auth_file", argv[0]);
set_absolute_path(options, "ssl_certificate", argv[0]);
// Make extra verification for certain options
verify_existence(options, "document_root", 1);
verify_existence(options, "cgi_interpreter", 0);
verify_existence(options, "ssl_certificate", 0);
// Setup signal handler: quit on Ctrl-C
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
// Start Squeasel
memset(&callbacks, 0, sizeof(callbacks));
callbacks.log_message = &log_message;
ctx = sq_start(&callbacks, NULL, (const char **) options);
for (i = 0; options[i] != NULL; i++) {
free(options[i]);
}
if (ctx == NULL) {
die("%s", "Failed to start Squeasel.");
}
}
static int
sq_txintr(struct sq_softc *sc)
{
int i;
u_int32_t status;
struct ifnet *ifp = &sc->sc_ethercom.ec_if;
status = bus_space_read_4(sc->sc_hpct, sc->sc_hpch, HPC_ENETX_CTL);
SQ_TRACE(SQ_TXINTR_ENTER, sc->sc_prevtx, status, sc->sc_nfreetx);
if ((status & (ENETX_CTL_ACTIVE | TXSTAT_GOOD)) == 0) {
if (status & TXSTAT_COLL)
ifp->if_collisions++;
if (status & TXSTAT_UFLOW) {
printf("%s: transmit underflow\n", sc->sc_dev.dv_xname);
ifp->if_oerrors++;
}
if (status & TXSTAT_16COLL) {
printf("%s: max collisions reached\n", sc->sc_dev.dv_xname);
ifp->if_oerrors++;
ifp->if_collisions += 16;
}
}
i = sc->sc_prevtx;
while (sc->sc_nfreetx < SQ_NTXDESC) {
/*
* Check status first so we don't end up with a case of
* the buffer not being finished while the DMA channel
* has gone idle.
*/
status = bus_space_read_4(sc->sc_hpct, sc->sc_hpch,
HPC_ENETX_CTL);
SQ_CDTXSYNC(sc, i, sc->sc_txmap[i]->dm_nsegs,
BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
/* If not yet transmitted, try and start DMA engine again */
if ((sc->sc_txdesc[i].hdd_ctl & HDD_CTL_XMITDONE) == 0) {
if ((status & ENETX_CTL_ACTIVE) == 0) {
SQ_TRACE(SQ_RESTART_DMA, i, status,
sc->sc_nfreetx);
bus_space_write_4(sc->sc_hpct, sc->sc_hpch,
HPC_ENETX_NDBP, SQ_CDTXADDR(sc, i));
/* Kick DMA channel into life */
bus_space_write_4(sc->sc_hpct, sc->sc_hpch,
HPC_ENETX_CTL, ENETX_CTL_ACTIVE);
/*
* Set a watchdog timer in case the chip
* flakes out.
*/
ifp->if_timer = 5;
} else {
SQ_TRACE(SQ_TXINTR_BUSY, i, status,
sc->sc_nfreetx);
}
break;
}
/* Sync the packet data, unload DMA map, free mbuf */
bus_dmamap_sync(sc->sc_dmat, sc->sc_txmap[i], 0,
sc->sc_txmap[i]->dm_mapsize,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->sc_dmat, sc->sc_txmap[i]);
m_freem(sc->sc_txmbuf[i]);
sc->sc_txmbuf[i] = NULL;
ifp->if_opackets++;
sc->sc_nfreetx++;
SQ_TRACE(SQ_DONE_DMA, i, status, sc->sc_nfreetx);
i = SQ_NEXTTX(i);
}
/* prevtx now points to next xmit packet not yet finished */
sc->sc_prevtx = i;
/* If we have buffers free, let upper layers know */
if (sc->sc_nfreetx > 0)
ifp->if_flags &= ~IFF_OACTIVE;
/* If all packets have left the coop, cancel watchdog */
if (sc->sc_nfreetx == SQ_NTXDESC)
ifp->if_timer = 0;
SQ_TRACE(SQ_TXINTR_EXIT, sc->sc_prevtx, status, sc->sc_nfreetx);
sq_start(ifp);
return 1;
}