[RELEASE] flxutils-0.1.22v0.1.22

3 files changed, 446 insertions, 1 deletions

diff --git a/wd/install-wdd-nice.scr b/wd/install-wdd-nice.scr
new file mode 100644
index 0000000..31e8405
--- /dev/null
+++ b/wd/install-wdd-nice.scr
@@ -0,0 +1,296 @@
+#!/bin/bash
+
+# ce script peut également être exécuté comme ceci:
+# ssh -t access@na root@remote 'zcat|bash' < $SCRIPT.gz
+#
+
+echo "###### checking /bin/nice ######"
+if [ ! -x /bin/nice ]; then
+    echo "WARNING ! nice absent. Installation en cours !"
+    remountw
+    # this block was generated with : "od -An -tx1 -vw32|tr -d ' '"
+    (sed -e 's/../x\0/g' | while read; do printf "${REPLY//x/\x}"; done | tar -C / -zxUpvf -) <<EOF
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+fe71ba422b5fbf093e2fb7239dafe97edbb5775713f6b90d7c31f0c5c09765be
+968f4031f0d15de52c38bd287b942f710feb09031fe590d2e9fa5dd6b17a3b0d
+f1b20d7cdba65f7b213611137b391fcd1dbb9f9caffb65acbc6f18f8e8a64677
+fe689b91ef00b7cdc2f303dd6b7ed3706f37e1bf1e833c7a29dd52a0d78f9577
+c8c0570fbefa9bf06d32f0518ef4806fbf70bd9fb771fd167eb7952e41ef365d
+ef1793e12e342be07bf506eb2d55522555522555522555522555522555522555
+522555522555522555522555522555522555522555522555522555fef7cbff00
+b7513dc600500000
+EOF
+fi
+
+echo "###### Modprobe softdog #######"
+if ! modprobe softdog soft_margin=30 nowayout=1; then
+     echo "ERREUR de chargement de softdog. Fin de l'installation !"
+     exit 1
+fi
+
+echo "###### remontage R/W #######"
+
+remountw
+
+echo "###### extraction sbin/wdd #######"
+# this block was generated with : "od -An -tx1 -vw32|tr -d ' '"
+(sed -e 's/../x\0/g' | while read; do printf "${REPLY//x/\x}"; done | tar -C / -zxUpvf -) <<EOF
+1f8b0800de741d400203ed934148146114c7bf5967dd3d986e60e1c16aa1ed54
+b1b3dbae8b8521b575296a646b2d82c45cc92652d09995a252fa9a6a9836840e
+754c2528baeca9ec12c3ae641d82e8e425ea627d834451627b10a7f7cdace2a9
+5b1ee2fd868f37efbdfff7defbbe6186ce5de88f0ee772e41f22c52429959088
+e451b589153f968c250948a4543cbe27d912e7fa544b8a8425b20e68436af760
+384c060706d4bfe9ba7397c87fc8c8a1a387054158f57da486704f1d15838935
+ba040943ce63550d1abeda6b08e1cbcf63212fefc6ee430ed606f077c1aaade6
+4f1b5f3a0ae97ba29ced9894216f94628bb424b60e2e691573afeea81b692948
+9db0f6d3bcb264b4f1122c085b65d603a517c64e1a739dd90c1b0747b7ae0762
+96bd0f5e5ff1f1b28cc22b9d168f5d5ee8db4f61e345f0d92d2f48971d6db3e2
+eb9378428198f19a4e0721aa6e5704379a6543aeb48e5604b53ecb92bcb003c0
+6ec5ab63940b949f4266b22b0dea961a50043603ed8d4f4b2f8948c8af671916
+f77a56b34f21cbbe73c98cee5ce39107e0e88e1680b277e15581a7937d236ef7
+d68abb4975e32ce4753dd82eb38f646dcb13d596300d6fe91d78c293d00aaf2d
+30fe1365d863b27698665e576022d4b5e7961da7d0bb70e66cd7db72214f1a5e
+58f3fea2d0f0dc822b36be9a5d21f378a3d9d9640e379b23616713ff18b47233
+5fff7bd628b37e3e40137de3c0f6f2bbd1b2b158acb32db8aeb162ad3de55a9f
+5d74addf7ee2da03f623d72af643d706ec31d78af61d6e1d3522b2dbdeb49369
+6816fbc04fe2334ac67b3edfd42988419f6cc6542375b48d4b88560fb754f2be
+926e5ddda12f6a81719e99df666ee1b6206e95d9f8aa403466e7fd7c3c981b6a
+99e9087c5cd9f82ccbac115a83dfb8331d09d2e950b9b8dbfeb1cce79bb019b7
+d15c6f3e3adcadf6f4e506ce93283972430caefc130241100441100441100441
+10044110044110044110044110044190f5e50f548527e700280000
+EOF
+
+echo "###### modif startup.rc #######"
+
+### startup.rc ###
+ed -s /etc/startup.rc << "EOF"
+1
+g/\/sbin\/wdd/d
+$a
+/bin/nice -n 10 /sbin/wdd
+.
+wq
+EOF
+
+echo "###### modif config.rc #######"
+
+### config.rc ###
+ed -s /etc/config.rc << "EOF"
+1
+/^\(service\|section\)[ 	]*system/
+kb
+# on supprime une éventuelle occurence de modprobe softdog
+'b+1,/^\(service\|section\|no service\|no section\)/g/^[ 	]*modprobe.*softdog/d
+# on supprime toutes les lignes vides jusqu'à la section suivante
+'b+1,/^\(service\|section\|no service\|no section\)/g/^[ 	]*$/d
+'b
+# et on recherche la dernière ligne autre qu'un commentaire avant la section suivante
+/^\(service\|section\|no service\|no section\)/
+?^[^#]?
+a
+   modprobe softdog soft_margin=30 nowayout=1
+
+.
+wq
+EOF
+
+echo "###### démarrage du watchdog ######"
+
+killall wdd
+/bin/nice -n -10 /sbin/wdd
+
+echo "###### remontage R/O #######"
+
+sync
+remountr
+
+echo "###### terminé #######"
diff --git a/wd/install-wdd.scr b/wd/install-wdd.scr
new file mode 100644
index 0000000..602bf27
--- /dev/null
+++ b/wd/install-wdd.scr
@@ -0,0 +1,95 @@
+#!/bin/bash
+
+# ce script peut également être exécuté comme ceci:
+# ssh -t access@na root@remote bash < $SCRIPT
+#
+
+echo "###### checking /bin/nice ######"
+if [ ! -x /bin/nice ]; then
+     echo "ERREUR : nice absent. Fin de l'installation !"
+     exit 1
+fi
+
+echo "###### Modprobe softdog #######"
+if ! modprobe softdog soft_margin=30 nowayout=1; then
+     echo "ERREUR de chargement de softdog. Fin de l'installation !"
+     exit 1
+fi
+
+echo "###### remontage R/W #######"
+
+remountw
+
+echo "###### extraction sbin/wdd #######"
+# this block was generated with : "od -An -tx1 -vw32|tr -d ' '"
+(sed -e 's/../x\0/g' | while read; do printf "${REPLY//x/\x}"; done | tar -C / -zxUpvf -) <<EOF
+1f8b0800de741d400203ed934148146114c7bf5967dd3d986e60e1c16aa1ed54
+b1b3dbae8b8521b575296a646b2d82c45cc92652d09995a252fa9a6a9836840e
+754c2528baeca9ec12c3ae641d82e8e425ea627d834451627b10a7f7cdace2a9
+5b1ee2fd868f37efbdfff7defbbe6186ce5de88f0ee772e41f22c52429959088
+e451b589153f968c250948a4543cbe27d912e7fa544b8a8425b20e68436af760
+384c060706d4bfe9ba7397c87fc8c8a1a387054158f57da486704f1d15838935
+ba040943ce63550d1abeda6b08e1cbcf63212fefc6ee430ed606f077c1aaade6
+4f1b5f3a0ae97ba29ced9894216f94628bb424b60e2e691573afeea81b692948
+9db0f6d3bcb264b4f1122c085b65d603a517c64e1a739dd90c1b0747b7ae0762
+96bd0f5e5ff1f1b28cc22b9d168f5d5ee8db4f61e345f0d92d2f48971d6db3e2
+eb9378428198f19a4e0721aa6e5704379a6543aeb48e5604b53ecb92bcb003c0
+6ec5ab63940b949f4266b22b0dea961a50043603ed8d4f4b2f8948c8af671916
+f77a56b34f21cbbe73c98cee5ce39107e0e88e1680b277e15581a7937d236ef7
+d68abb4975e32ce4753dd82eb38f646dcb13d596300d6fe91d78c293d00aaf2d
+30fe1365d863b27698665e576022d4b5e7961da7d0bb70e66cd7db72214f1a5e
+58f3fea2d0f0dc822b36be9a5d21f378a3d9d9640e379b23616713ff18b47233
+5fff7bd628b37e3e40137de3c0f6f2bbd1b2b158acb32db8aeb162ad3de55a9f
+5d74addf7ee2da03f623d72af643d706ec31d78af61d6e1d3522b2dbdeb49369
+6816fbc04fe2334ac67b3edfd42988419f6cc6542375b48d4b88560fb754f2be
+926e5ddda12f6a81719e99df666ee1b6206e95d9f8aa403466e7fd7c3c981b6a
+99e9087c5cd9f82ccbac115a83dfb8331d09d2e950b9b8dbfeb1cce79bb019b7
+d15c6f3e3adcadf6f4e506ce93283972430caefc130241100441100441100441
+10044110044110044110044110044190f5e50f548527e700280000
+EOF
+
+echo "###### modif startup.rc #######"
+
+### startup.rc ###
+ed -s /etc/startup.rc << "EOF"
+1
+g/\/sbin\/wdd/d
+$a
+/bin/nice -n 10 /sbin/wdd
+.
+wq
+EOF
+
+echo "###### modif config.rc #######"
+
+### config.rc ###
+ed -s /etc/config.rc << "EOF"
+1
+/^\(service\|section\)[ 	]*system/
+kb
+# on supprime une éventuelle occurence de modprobe softdog
+'b+1,/^\(service\|section\|no service\|no section\)/g/^[ 	]*modprobe.*softdog/d
+# on supprime toutes les lignes vides jusqu'à la section suivante
+'b+1,/^\(service\|section\|no service\|no section\)/g/^[ 	]*$/d
+'b
+# et on recherche la dernière ligne autre qu'un commentaire avant la section suivante
+/^\(service\|section\|no service\|no section\)/
+?^[^#]?
+a
+   modprobe softdog soft_margin=30 nowayout=1
+
+.
+wq
+EOF
+
+echo "###### démarrage du watchdog ######"
+
+killall wdd
+/bin/nice -n -10 /sbin/wdd
+
+echo "###### remontage R/O #######"
+
+sync
+remountr
+
+echo "###### terminé #######"
diff --git a/wd/wdd.c b/wd/wdd.c
index 3ee0af8..d521881 100644
--- a/wd/wdd.c
+++ b/wd/wdd.c
@@ -1,5 +1,5 @@
 /*
- * wdd - simple watchdog daemon - 2003 - willy tarreau
+ * wdd - simple watchdog daemon - 2003-2004 - willy tarreau
  */
 
 #include <stdio.h>
@@ -10,6 +10,57 @@
 const char dev_wd_str[] = "/dev/watchdog";
 const char root_str[] = "/";
 
+/*
+ * This function checks if the system can allocate memory
+ * In case of failure, we exit so that the watchdog device
+ * notices it and can reboot.
+ */
+static inline void try_malloc() {
+    void *heap;
+
+    heap = (void*)sbrk(NULL);
+    if (brk(heap + 4096))
+	exit(1);
+    memset(heap, 0, 4096);
+    if (brk(heap))
+	exit(1);
+}
+
+/*
+ * This function checks if the system can fork
+ * In case of failure, we exit so that the watchdog device
+ * notices it and can reboot.
+ */
+static inline void try_fork() {
+    int pid;
+    pid = fork();
+    if (pid < 0) /* exit on error */
+	exit(1);
+    else if (pid == 0) /* child returns cleanly */
+	exit(0);
+    if (waitpid(pid, NULL, 0) != pid) /* father checks child */
+	exit(1);
+}
+
+
+/*
+ * This function checks if the system can access its root FS
+ * In case of failure, we exit so that the watchdog device
+ * notices it and can reboot.
+ */
+static inline void try_stat() {
+    void *heap;
+
+    heap = (void*)sbrk(NULL);
+    if (brk(heap + sizeof (struct stat)))
+	exit(1);
+    memset(heap, 0, sizeof (struct stat));
+    if (stat(root_str, heap) == -1)
+	exit(1);
+    if (brk(heap))
+	exit(1);
+}
+
 int main (void) {
     int dev;
 
@@ -29,6 +80,9 @@ int main (void) {
 	    close(dev);
 	    dev = -1;
 	}
+	try_malloc();
+	try_fork();
+	try_stat();
 	/* avoid a fast loop */
 	sleep(1);
     }