From 47e5007b5b0ff70ff2397791613e461debe2548b Mon Sep 17 00:00:00 2001
From: Guillaume Cottenceau <gc@mandriva.com>
Date: Mon, 1 Dec 2003 14:30:44 +0000
Subject: we need loop-aes for mountloop, so we use change_loop with a special
 device number

---
 mdk-stage1/init.c    |  8 ++++++++
 mdk-stage1/lomount.c | 18 +++++++++++-------
 mdk-stage1/mount.c   |  3 +++
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/mdk-stage1/init.c b/mdk-stage1/init.c
index 5209f1f50..f5e18bb03 100644
--- a/mdk-stage1/init.c
+++ b/mdk-stage1/init.c
@@ -241,6 +241,7 @@ void doklog()
 void del_loops(void) 
 {
         char loopdev[] = "/dev/loop0";
+        char chloopdev[] = "/dev/chloop0";
         int i;
         for (i=0; i<8; i++) {
                 int fd;
@@ -251,6 +252,13 @@ void del_loops(void)
                                 printf("\t%s\n", loopdev);
                         close(fd);
                 }
+                chloopdev[11] = '0' + i;
+                fd = open(chloopdev, O_RDONLY, 0);
+                if (fd > 0) {
+                        if (!ioctl(fd, LOOP_CLR_FD, 0))
+                                printf("\t%s\n", chloopdev);
+                        close(fd);
+                }
         }
 }
 
diff --git a/mdk-stage1/lomount.c b/mdk-stage1/lomount.c
index 791db0d0f..25f72c345 100644
--- a/mdk-stage1/lomount.c
+++ b/mdk-stage1/lomount.c
@@ -115,24 +115,26 @@ set_loop (const char *device, const char *file, int gz)
 }
 
 
-char* find_free_loop(void)
+char* find_free_loop(int chloop)
 {
         char loopdev[] = "/dev/loop0";
+        char chloopdev[] = "/dev/chloop0";
+        char * ldev = chloop ? chloopdev : loopdev;        
 	struct loop_info loopinfo;
         int i;
         for (i=0; i<8; i++) {
                 int fd;
-                loopdev[9] = '0' + i;
-                ensure_dev_exists(loopdev);
-                fd = open(loopdev, O_RDONLY);
+                ldev[strlen(ldev)-1] = '0' + i;
+                ensure_dev_exists(ldev);
+                fd = open(ldev, O_RDONLY);
                 if (!ioctl(fd, LOOP_GET_STATUS, &loopinfo)) {
                         close(fd);
                         continue;
                 }
                 if (errno == ENXIO) {
-                        log_message("%s is available", loopdev);
+                        log_message("%s is available", ldev);
                         close(fd);
-                        return strdup(loopdev);
+                        return strdup(ldev);
                 } else {
                         log_perror("LOOP_GET_STATUS(unexpected error)");
                         close(fd);
@@ -165,17 +167,19 @@ lomount(char *loopfile, char *where, char **dev, int gz)
   
 	long int flag;
         char * loopdev;
+        int chloop = 0;
 
 	flag = MS_MGC_VAL;
 	flag |= MS_RDONLY;
 
 #ifdef MANDRAKE_MOVE
 	my_insmod("change_loop", ANY_DRIVER_TYPE, NULL);
+        chloop = 1;
 #else
 	my_insmod("loop", ANY_DRIVER_TYPE, NULL);
 #endif
 
-        if (!(loopdev = find_free_loop())) {
+        if (!(loopdev = find_free_loop(chloop))) {
 		log_message("could not find a free loop");
 		return 1;
         }
diff --git a/mdk-stage1/mount.c b/mdk-stage1/mount.c
index d5ecba619..64ae759f9 100644
--- a/mdk-stage1/mount.c
+++ b/mdk-stage1/mount.c
@@ -130,6 +130,9 @@ int ensure_dev_exists(const char * dev)
 	} else if (ptr_begins_static_str(name, "loop")) {
 		major = 7;
 		minor = name[4] - '0';
+	} else if (ptr_begins_static_str(name, "chloop")) {
+		major = 100;
+		minor = name[6] - '0';
 	} else {
 		log_message("I don't know how to create device %s, please post bugreport to me!", dev);
 		return -1;
-- 
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