amtider: IDE-redirection client

Preliminary stub only.

Signed-off-by: Hannes Reinecke <hare@suse.de>

5 files changed, 269 insertions, 1 deletions

diff --git a/GNUmakefile b/GNUmakefile
index fb5684b..b348505 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -20,7 +20,7 @@ CFLAGS	+= -Wall -Wno-pointer-sign
 CFLAGS	+= -DVERSION='"$(VERSION)"'
 CFLAGS  += $(SSL_DEFS)
 
-TARGETS	:= amtterm
+TARGETS	:= amtterm amtider
 DESKTOP := $(wildcard *.desktop)
 
 all: build
@@ -74,6 +74,7 @@ distclean: clean
 #################################################################
 
 amtterm: amtterm.o redir.o tcp.o auth.o ssl.o
+amtider: amtider.o redir.o tcp.o auth.o ssl.o
 gamt: gamt.o redir.o tcp.o parseconfig.o auth.o ssl.o
 
 #################################################################
diff --git a/RedirectionConstants.h b/RedirectionConstants.h
index 0ad7fc0..b05060f 100644
--- a/RedirectionConstants.h
+++ b/RedirectionConstants.h
@@ -59,6 +59,7 @@
 #define IDER_RESET_OCCURED_RESPONSE         0x47
 #define IDER_DISABLE_ENABLE_FEATURES        0x48
 #define IDER_DISABLE_ENABLE_FEATURES_REPLY  0x49
+#define IDER_ERROR_OCCURED                  0x4A
 #define IDER_HEARTBEAT                      0x4B
 #define IDER_COMMAND_WRITTEN                0x50
 #define IDER_COMMAND_END_RESPONSE           0x51
diff --git a/amtider.c b/amtider.c
new file mode 100644
index 0000000..6393804
--- /dev/null
+++ b/amtider.c
@@ -0,0 +1,242 @@
+/*
+ *  amtider -- Intel AMT IDE-redirection client, console version.
+ *
+ *  Copyright (C) 2022 Hannes Reinecke <hare@suse.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#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 "amtider"
+#define BUFSIZE 512
+
+/* ------------------------------------------------------------------ */
+
+static int recv_ider(void *cb_data, unsigned char *buf, int len)
+{
+    struct redir *r = cb_data;
+
+    return write(STDOUT_FILENO, buf, len);
+}
+
+static void state_ider(void *cb_data, enum redir_state old,
+		       enum redir_state new)
+{
+    struct redir *r = cb_data;
+
+    if (r->verbose)
+	fprintf(stderr, APPNAME ": %s -> %s (%s)\n",
+		redir_state_name(old), redir_state_name(new),
+		redir_state_desc(new));
+    switch (new) {
+    case REDIR_RUN_IDER:
+	if (r->verbose)
+	    fprintf(stderr,
+		    "IDE redirection ok\n"
+		    "connected now, use ^] to escape\n");
+	break;
+    case REDIR_ERROR:
+	fprintf(stderr, APPNAME ": ERROR: %s\n", r->err);
+	break;
+    default:
+	break;
+    }
+}
+
+static int redir_loop(struct redir *r)
+{
+    struct timeval tv;
+    fd_set set;
+
+    for(;;) {
+	if (r->state == REDIR_CLOSED ||
+	    r->state == REDIR_ERROR)
+	    break;
+
+	FD_ZERO(&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(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(STDIN_FILENO,F_GETFL,&saved_fl);
+    tcgetattr (STDIN_FILENO, &saved_attributes);
+}
+
+static void tty_noecho(void)
+{
+    struct termios tattr;
+
+    memcpy(&tattr,&saved_attributes,sizeof(struct termios));
+    tattr.c_lflag &= ~(ECHO);
+    tcsetattr (STDIN_FILENO, TCSAFLUSH, &tattr);
+}
+
+static void tty_restore(void)
+{
+    fcntl(STDIN_FILENO,F_SETFL,saved_fl);
+    tcsetattr (STDIN_FILENO, TCSANOW, &saved_attributes);
+}
+
+/* ------------------------------------------------------------------ */
+
+static void usage(FILE *fp)
+{
+    fprintf(fp,
+	    "\n"
+	    "This is " APPNAME ", release " VERSION ", it'll establish\n"
+	    "ide-redirection (ider) 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"
+	    "   -f file       file to use as device data\n"
+	    "   -L            use legacy authentication\n"
+#if defined(USE_OPENSSL) || defined(USE_GNUTLS)
+	    "   -C cacert     enable SSL and use PEM cacert file\n"
+#endif
+	    "   -u user       username (default: admin)\n"
+	    "   -p pass       password (default: $AMT_PASSWORD)\n"
+	    "\n"
+#if defined(USE_OPENSSL) || defined(USE_GNUTLS)
+	    "By default port 16994 (SSL: 16995) is used.\n"
+#else
+	    "By default port 16994 is used.\n"
+#endif
+	    "If no password is given " APPNAME " will ask for one.\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, "IDER", 4);
+    strcpy(r.user, "admin");
+
+    r.cb_data  = &r;
+    r.cb_recv  = recv_ider;
+    r.cb_state = state_ider;
+
+    if (NULL != (h = getenv("AMT_PASSWORD")))
+	snprintf(r.pass, sizeof(r.pass), "%s", h);
+
+    for (;;) {
+	if (-1 == (c = getopt(argc, argv, "hvqu:p:LC:")))
+	    break;
+	switch (c) {
+	case 'v':
+	    r.trace = 1;
+	    break;
+	case 'q':
+	    r.verbose = 0;
+	    break;
+	case 'f':
+	    snprintf(r.filename, sizeof(r.filename), "%s", optarg);
+	    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 'L':
+	    r.legacy = 1;
+	    break;
+#if defined(USE_OPENSSL) || defined(USE_GNUTLS)
+	case 'C':
+	    r.cacert = optarg;
+	    break;
+#endif
+
+	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);
+    }
+
+    if (0 == strlen(r.pass)) {
+	tty_save();
+	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;
+	tty_restore();
+    }
+
+    if (-1 == redir_connect(&r)) {
+	exit(1);
+    }
+
+    redir_start(&r);
+    redir_loop(&r);
+
+    exit(0);
+}
diff --git a/redir.c b/redir.c
index 7943343..32deb30 100644
--- a/redir.c
+++ b/redir.c
@@ -314,6 +314,23 @@ int redir_sol_start(struct redir *r)
     return redir_write(r, request, sizeof(request));
 }
 
+int redir_ider_start(struct redir *r)
+{
+    unsigned char request[START_IDER_REDIRECTION_LENGTH] = {
+	START_IDER_REDIRECTION,
+	TRANSMIT_BUFFER_TIMEOUT & 0xff,
+	TRANSMIT_BUFFER_TIMEOUT >> 8,
+	HOST_SESSION_RX_TIMEOUT & 0xff,
+	HOST_SESSION_RX_TIMEOUT >> 8,
+	HEARTBEAT_INTERVAL & 0xff,
+	HEARTBEAT_INTERVAL >> 8,
+	1, 0, 0, 0
+    };
+
+    redir_state(r, REDIR_INIT_IDER);
+    return redir_write(r, request, sizeof(request));
+}
+
 int redir_sol_stop(struct redir *r)
 {
     unsigned char request[END_SOL_REDIRECTION_LENGTH] = {
diff --git a/redir.h b/redir.h
index 8520d58..64d46a7 100644
--- a/redir.h
+++ b/redir.h
@@ -30,6 +30,9 @@ struct redir {
     enum redir_state  state;
     unsigned char     err[128]; // state == REDIR_ERROR
 
+    /* ide-redirection */
+    unsigned char     filename[256];
+
     int               sock;
     unsigned char     buf[64];
     unsigned int      blen;
@@ -62,4 +65,8 @@ int redir_sol_start(struct redir *r);
 int redir_sol_stop(struct redir *r);
 int redir_sol_send(struct redir *r, unsigned char *buf, int blen);
 int redir_sol_recv(struct redir *r);
+int redir_ider_start(struct redir *r);
+int redir_ider_stop(struct redir *r);
+int redir_ider_send(struct redir *r, unsigned char *buf, int blen);
+int redir_ider_recv(struct redir *r);
 int redir_data(struct redir *r);