main/dadhi-linux-hardened: rename from dadhi-linux-grsec, provide dadhi-linux-grsec

1 files changed, 167 insertions, 0 deletions

diff --git a/main/dahdi-linux-hardened/dahdi-bri_dchan.patch b/main/dahdi-linux-hardened/dahdi-bri_dchan.patch
new file mode 100644
index 0000000000..8d2ba97fd1
--- /dev/null
+++ b/main/dahdi-linux-hardened/dahdi-bri_dchan.patch
@@ -0,0 +1,167 @@
+# Translate the D channels to a standard channel data.
+# The HFC chipset provides us the D channel as data, but
+# Zaptel expects it as a standard channel with 1000 samples
+# per second.
+
+Index: dahdi-linux-2.5.0/include/dahdi/kernel.h
+===================================================================
+--- dahdi-linux-2.5.0.orig/include/dahdi/kernel.h	2011-06-29 18:32:40.000000000 +0300
++++ dahdi-linux-2.5.0/include/dahdi/kernel.h	2011-08-15 14:14:26.000000000 +0300
+@@ -413,6 +413,13 @@
+ 	int statcount;
+ 	int lastnumbufs;
+ #endif
++#ifdef CONFIG_DAHDI_BRI_DCHANS
++	int bytes2receive;
++	int maxbytes2transmit; /* size of the tx buffer in the card driver */
++	int bytes2transmit;
++	int eofrx;
++	int eoftx;
++#endif
+ 	spinlock_t lock;
+ 	char name[40];
+ 	/* Specified by DAHDI */
+@@ -723,6 +730,9 @@
+ 	DAHDI_FLAGBIT_TXUNDERRUN = 22,	/*!< Transmit underrun condition */
+ 	DAHDI_FLAGBIT_RXOVERRUN = 23,	/*!< Receive overrun condition */
+ 	DAHDI_FLAGBIT_DEVFILE	= 25,	/*!< Channel has a sysfs dev file */
++#if defined(CONFIG_DAHDI_BRI_DCHANS)
++	DAHDI_FLAGBIT_BRIDCHAN   = 26,	/*!< hardhdlc-like handling of the D channel */
++#endif
+ };
+ 
+ #ifdef CONFIG_DAHDI_NET
+@@ -789,6 +799,7 @@
+ #define DAHDI_FLAG_BUFEVENTS	DAHDI_FLAG(BUFEVENTS)
+ #define DAHDI_FLAG_TXUNDERRUN	DAHDI_FLAG(TXUNDERRUN)
+ #define DAHDI_FLAG_RXOVERRUN	DAHDI_FLAG(RXOVERRUN)
++#define DAHDI_FLAG_BRIDCHAN	DAHDI_FLAG(BRIDCHAN)
+ 
+ struct file;
+ 
+Index: dahdi-linux-2.5.0/include/dahdi/dahdi_config.h
+===================================================================
+--- dahdi-linux-2.5.0.orig/include/dahdi/dahdi_config.h	2011-01-05 17:52:03.000000000 +0200
++++ dahdi-linux-2.5.0/include/dahdi/dahdi_config.h	2011-08-15 14:13:01.000000000 +0300
+@@ -195,4 +195,10 @@
+  */
+ /* #define CONFIG_DAHDI_MIRROR */
+ 
++/*
++ * Uncomment the following for BRI D channels
++ *
++ */
++#define CONFIG_DAHDI_BRI_DCHANS
++
+ #endif
+Index: dahdi-linux-2.5.0/drivers/dahdi/dahdi-base.c
+===================================================================
+--- dahdi-linux-2.5.0.orig/drivers/dahdi/dahdi-base.c	2011-07-21 19:26:31.000000000 +0300
++++ dahdi-linux-2.5.0/drivers/dahdi/dahdi-base.c	2011-08-15 14:13:01.000000000 +0300
+@@ -7224,11 +7224,40 @@
+ 					*(txb++) = fasthdlc_tx_run_nocheck(&ms->txhdlc);
+ 				}
+ 				bytes -= left;
++#ifdef CONFIG_DAHDI_BRI_DCHANS
++			} else if (test_bit(DAHDI_FLAGBIT_BRIDCHAN, &ms->flags)) {
++			    /*
++			     * Let's get this right, we want to transmit complete frames only.
++			     * The card driver will do the dirty HDLC work for us.
++			     * txb (transmit buffer) is supposed to be big enough to store one frame
++			     * we will make this as big as the D fifo (1KB or 2KB)
++			     */
++
++			    /* there are 'left' bytes in the user buffer left to transmit */
++			    left = ms->writen[ms->outwritebuf] - ms->writeidx[ms->outwritebuf] - 2;
++			    if (left > ms->maxbytes2transmit) {
++				memcpy(txb, buf + ms->writeidx[ms->outwritebuf], ms->maxbytes2transmit);
++				ms->writeidx[ms->outwritebuf] += ms->maxbytes2transmit;
++				txb += ms->maxbytes2transmit;
++				ms->bytes2transmit = ms->maxbytes2transmit;
++				ms->eoftx = 0;
++			    } else {
++				memcpy(txb, buf + ms->writeidx[ms->outwritebuf], left);
++				ms->writeidx[ms->outwritebuf] += left + 2;
++				txb += left + 2;
++				ms->bytes2transmit = left;
++				ms->eoftx = 1;
++			    }
++			    bytes = 0;
++#endif
+ 			} else {
+ 				memcpy(txb, buf + ms->writeidx[ms->outwritebuf], left);
+ 				ms->writeidx[ms->outwritebuf]+=left;
+ 				txb += left;
+ 				bytes -= left;
++#if defined(CONFIG_DAHDI_BRI_DCHANS)	
++				ms->bytes2transmit=DAHDI_CHUNKSIZE;
++#endif
+ 			}
+ 			/* Check buffer status */
+ 			if (ms->writeidx[ms->outwritebuf] >= ms->writen[ms->outwritebuf]) {
+@@ -7285,6 +7314,17 @@
+ 				/* Transmit a flag if this is an HDLC channel */
+ 				if (ms->flags & DAHDI_FLAG_HDLC)
+ 					fasthdlc_tx_frame_nocheck(&ms->txhdlc);
++#if defined(CONFIG_DAHDI_BRI_DCHANS)	
++				if (test_bit(DAHDI_FLAGBIT_BRIDCHAN, &ms->flags)) {
++			//	    if (ms->bytes2transmit > 0) {
++					// txb += 2;
++					// ms->bytes2transmit -= 2;
++					bytes=0;
++					ms->eoftx = 1;
++//					printk(KERN_CRIT "zaptel EOF(%d) bytes2transmit %d\n",ms->eoftx,ms->bytes2transmit);
++			//	    }
++				}
++#endif
+ #ifdef CONFIG_DAHDI_NET
+ 				if (dahdi_have_netdev(ms))
+ 					netif_wake_queue(chan_to_netdev(ms));
+@@ -7346,6 +7386,12 @@
+ 			}
+ 			needtxunderrun += bytes;
+ 			bytes = 0;
++#if defined(CONFIG_DAHDI_BRI_DCHANS)	
++		} else if (test_bit(DAHDI_FLAGBIT_BRIDCHAN, &ms->flags)) {
++		    ms->bytes2transmit = 0;
++		    ms->eoftx = 0;
++		    bytes = 0;
++#endif
+ 		} else {
+ 			memset(txb, DAHDI_LIN2X(0, ms), bytes);	/* Lastly we use silence on telephony channels */
+ 			needtxunderrun += bytes;
+@@ -8267,6 +8313,14 @@
+ 	int res;
+ 	int left, x;
+ 
++#if defined(CONFIG_DAHDI_BRI_DCHANS)	
++	if (test_bit(DAHDI_FLAGBIT_BRIDCHAN, &ms->flags)) {
++	    bytes = ms->bytes2receive;
++	    if (bytes < 1) return;
++//	    printk(KERN_CRIT "bytes2receive %d\n",ms->bytes2receive);
++	}
++#endif
++
+ 	while(bytes) {
+ #if defined(CONFIG_DAHDI_NET)  || defined(CONFIG_DAHDI_PPP)
+ 		skb = NULL;
+@@ -8324,6 +8378,19 @@
+ 						}
+ 					}
+ 				}
++#ifdef CONFIG_DAHDI_BRI_DCHANS
++			} else if (test_bit(DAHDI_FLAGBIT_BRIDCHAN, &ms->flags)) {
++			    memcpy(buf + ms->readidx[ms->inreadbuf], rxb, left);
++			    rxb += left;
++			    ms->readidx[ms->inreadbuf] += left;
++			    bytes -= left;
++			    if (ms->eofrx == 1) {
++				eof=1;
++			    }
++//			    printk(KERN_CRIT "receiving %d bytes\n",ms->bytes2receive);
++			    ms->bytes2receive = 0;
++			    ms->eofrx = 0;
++#endif
+ 			} else {
+ 				/* Not HDLC */
+ 				memcpy(buf + ms->readidx[ms->inreadbuf], rxb, left);