From de8f1175dcb07f65dde26b42a3f12f9993746c84 Mon Sep 17 00:00:00 2001
From: Holger Hans Peter Freyther <zecke@selfish.org>
Date: Wed, 13 Jun 2012 11:17:33 +0200
Subject: cell_log: Use a custom RF-Lock handling to unlock the GSM network
Send a lock/unlock to the NITB application using the CTRL interface
and custom messages.
---
src/util/cell_log.c | 65 ++++++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 54 insertions(+), 11 deletions(-)
(limited to 'src')
diff --git a/src/util/cell_log.c b/src/util/cell_log.c
index 83d4f4e..22d1dd9 100644
--- a/src/util/cell_log.c
+++ b/src/util/cell_log.c
@@ -27,10 +27,14 @@
#include <fcntl.h>
#include <time.h>
#include <syslog.h>
+#include <stdint.h>
#include <sys/types.h>
+#include <sys/socket.h>
#include <sys/stat.h>
+#include <netinet/in.h>
+
#include <libgsmd/libgsmd.h>
#include <libgsmd/voicecall.h>
#include <libgsmd/misc.h>
@@ -58,31 +62,70 @@ static int pending_responses = 0;
#define MIN_NO_NET_SECS 60
#define OUR_MCC 901
#define OUR_MNC 99
-#define LOCK_PATH "/var/lock/bts_rf_lock"
static time_t last_network_seen;
unsigned int rf_lock_active = 0;
static void bts_rf_lock(int on)
{
- int fd;
+ int fd, rc;
+
+ static const uint8_t rf_lock[] = {
+ 0x00, 0x23, 0xEE, 0x00, 0x53, 0x45, 0x54, 0x20,
+ 0x31, 0x20, 0x6E, 0x65, 0x74, 0x2E, 0x72, 0x66,
+ 0x5F, 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x67, 0x73,
+ 0x6D, 0x2C, 0x6C, 0x6F, 0x63, 0x6B, 0x2C, 0x6E,
+ 0x2F, 0x61, 0x2C, 0x6E, 0x2F, 0x61,
+ };
+
+ static const uint8_t rf_unlock[] = {
+ 0x00, 0x25, 0xEE, 0x00, 0x53, 0x45, 0x54, 0x20,
+ 0x31, 0x20, 0x6E, 0x65, 0x74, 0x2E, 0x72, 0x66,
+ 0x5F, 0x6C, 0x6F, 0x63, 0x6B, 0x20, 0x67, 0x73,
+ 0x6D, 0x2C, 0x75, 0x6E, 0x6C, 0x6F, 0x63, 0x6B,
+ 0x2C, 0x6E, 0x2F, 0x61, 0x2C, 0x6E, 0x2F, 0x61,
+ };
/* only print message on status change */
if (rf_lock_active != on)
syslog(LOG_NOTICE, "RF_LOCK: %sabling lock\n", on ? "En" : "Dis");
- /* for safety, always update the actual file on disk */
+ fd = socket(AF_INET, SOCK_STREAM, 0);
+ if (fd == -1) {
+ syslog(LOG_ERR, "RF_LOCK: socket creation failed: %d\n", errno);
+ return;
+ }
+
+ struct sockaddr_in addr;
+ memset(&addr, 0, sizeof(addr));
+ addr.sin_family = AF_INET;
+ addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+ addr.sin_port = htons(4249);
+ rc = connect(fd, (struct sockaddr *) &addr, sizeof(addr));
+ if (rc != 0) {
+ syslog(LOG_ERR, "RF_Lock: socket connect failed: %d\n", errno);
+ close(fd);
+ return;
+ }
+
if (on == 1) {
- struct stat st;
- if (stat(LOCK_PATH, &st) != 0) {
- fd = open(LOCK_PATH, O_WRONLY|O_CREAT, 0664);
- if (fd >= 0)
- close(fd);
- }
- } else
- unlink(LOCK_PATH);
+ rc = write(fd, rf_lock, sizeof(rf_lock));
+ if (rc != sizeof(rf_lock))
+ goto error;
+ } else {
+ rc = write(fd, rf_unlock, sizeof(rf_unlock));
+ if (rc != sizeof(rf_unlock))
+ goto error;
+ }
+ close(fd);
rf_lock_active = on;
+ return;
+
+error:
+ close(fd);
+ syslog(LOG_ERR, "RF_Lock: failed to send the message: %d\n", errno);
+ return;
}
--
cgit v1.2.3