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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <termios.h>
#include <signal.h>
#include <sys/ioctl.h>
#include "redir.h"
#define APPNAME "amtterm"
#define BUFSIZE 512
/* ------------------------------------------------------------------ */
static int recv_tty(void *cb_data, unsigned char *buf, int len)
{
// struct redir *r = cb_data;
return write(0, buf, len);
}
static void state_tty(void *cb_data, enum redir_state old, enum redir_state new)
{
struct redir *r = cb_data;
if (!r->verbose)
return;
fprintf(stderr, APPNAME ": %s -> %s (%s)\n",
redir_state_name(old), redir_state_name(new),
redir_state_desc(new));
switch (new) {
case REDIR_RUN_SOL:
fprintf(stderr, "serial-over-lan redirection ok\n");
fprintf(stderr, "connected now, use ^] to escape\n");
break;
default:
break;
}
}
static int redir_loop(struct redir *r)
{
unsigned char buf[BUFSIZE+1];
struct timeval tv;
int rc;
fd_set set;
for(;;) {
if (r->state == REDIR_CLOSED ||
r->state == REDIR_ERROR)
break;
FD_ZERO(&set);
if (r->state == REDIR_RUN_SOL)
FD_SET(0,&set);
FD_SET(r->sock,&set);
tv.tv_sec = HEARTBEAT_INTERVAL * 4 / 1000;
tv.tv_usec = 0;
switch (select(r->sock+1,&set,NULL,NULL,&tv)) {
case -1:
perror("select");
return -1;
case 0:
fprintf(stderr,"select: timeout\n");
return -1;
}
if (FD_ISSET(0,&set)) {
/* stdin has data */
rc = read(0,buf,BUFSIZE);
switch (rc) {
case -1:
perror("read(stdin)");
return -1;
case 0:
fprintf(stderr,"EOF from stdin\n");
return -1;
default:
if (buf[0] == 0x1d) {
if (r->verbose)
fprintf(stderr, "\n" APPNAME ": saw ^], exiting\n");
redir_sol_stop(r);
}
if (-1 == redir_sol_send(r, buf, rc))
return -1;
break;
}
}
if (FD_ISSET(r->sock,&set)) {
if (-1 == redir_data(r))
return -1;
}
}
return 0;
}
/* ------------------------------------------------------------------ */
struct termios saved_attributes;
int saved_fl;
static void tty_save(void)
{
fcntl(0,F_GETFL,&saved_fl);
tcgetattr (0, &saved_attributes);
}
static void tty_noecho(void)
{
struct termios tattr;
memcpy(&tattr,&saved_attributes,sizeof(struct termios));
tattr.c_lflag &= ~(ECHO);
tcsetattr (0, TCSAFLUSH, &tattr);
}
static void tty_raw(void)
{
struct termios tattr;
fcntl(0,F_SETFL,O_NONBLOCK);
memcpy(&tattr,&saved_attributes,sizeof(struct termios));
tattr.c_lflag &= ~(ISIG|ICANON|ECHO);
tattr.c_cc[VMIN] = 1;
tattr.c_cc[VTIME] = 0;
tcsetattr (0, TCSAFLUSH, &tattr);
}
static void tty_restore(void)
{
fcntl(0,F_SETFL,saved_fl);
tcsetattr (0, TCSANOW, &saved_attributes);
}
/* ------------------------------------------------------------------ */
static void usage(FILE *fp)
{
fprintf(fp,
"\n"
"This is " APPNAME ", release " VERSION ", I'll establish\n"
"serial-over-lan (sol) connections to your Intel AMT boxes.\n"
"\n"
"usage: " APPNAME " [options] host [port]\n"
"options:\n"
" -h print this text\n"
" -v verbose (default)\n"
" -q quiet\n"
" -u user username (default: admin)\n"
" -p pass password (default: $AMT_PASSWORD)\n"
"\n"
"By default port 16994 is used.\n"
"If no password is given " APPNAME " will ask for one.\n"
"\n"
"-- \n"
"(c) 2007 Gerd Hoffmann <kraxel@redhat.com>\n"
"\n");
}
int main(int argc, char *argv[])
{
struct redir r;
char *h;
int c;
memset(&r, 0, sizeof(r));
r.verbose = 1;
memcpy(r.type, "SOL ", 4);
strcpy(r.user, "admin");
r.cb_data = &r;
r.cb_recv = recv_tty;
r.cb_state = state_tty;
if (NULL != (h = getenv("AMT_PASSWORD")))
snprintf(r.pass, sizeof(r.pass), "%s", h);
for (;;) {
if (-1 == (c = getopt(argc, argv, "hvqu:p:")))
break;
switch (c) {
case 'v':
r.verbose = 1;
break;
case 'q':
r.verbose = 0;
break;
case 'u':
snprintf(r.user, sizeof(r.user), "%s", optarg);
break;
case 'p':
snprintf(r.pass, sizeof(r.pass), "%s", optarg);
memset(optarg,'*',strlen(optarg)); /* rm passwd from ps list */
break;
case 'h':
usage(stdout);
exit(0);
default:
usage(stderr);
exit(1);
}
}
if (optind < argc)
snprintf(r.host, sizeof(r.host), "%s", argv[optind]);
if (optind+1 < argc)
snprintf(r.port, sizeof(r.port), "%s", argv[optind+1]);
if (0 == strlen(r.host)) {
usage(stderr);
exit(1);
}
tty_save();
if (0 == strlen(r.pass)) {
tty_noecho();
fprintf(stderr, "AMT password for host %s: ", r.host);
fgets(r.pass, sizeof(r.pass), stdin);
fprintf(stderr, "\n");
if (NULL != (h = strchr(r.pass, '\r')))
*h = 0;
if (NULL != (h = strchr(r.pass, '\n')))
*h = 0;
}
if (-1 == redir_connect(&r)) {
tty_restore();
exit(1);
}
tty_raw();
redir_start(&r);
redir_loop(&r);
tty_restore();
exit(0);
}
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