Attachment 300063 Details for Bug 208103 – patch to undomounts.c

[patch] patch to undomounts.c

undomounts.diff (text/plain), 4.67 KB, created by Joel Andres Granados on 2008-04-02 13:39:55 UTC

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Creator: Joel Andres Granados

Created: 2008-04-02 13:39:55 UTC

Size: 4.67 KB

patch

obsolete

>diff --git a/loader2/undomounts.c b/loader2/undomounts.c
>index 07892af..0df48be 100644
>--- a/loader2/undomounts.c
>+++ b/loader2/undomounts.c
>@@ -27,11 +27,13 @@
> #include <sys/stat.h>
> #include <sys/swap.h>
> #include <unistd.h>
>-
> #include "devt.h"
>+#include "nfsmount.h"
> 
> struct unmountInfo {
>     char * name;
>+    char * fstype;
>+    char * device;
>     int mounted;
>     int loopDevice;
>     enum { FS, LOOP } what;
>@@ -45,6 +47,89 @@ static void printstr(char * string) {
>     write(1, string, strlen(string));
> }
> 
>+static int xdr_dir(XDR *xdrsp, char *dirp)
>+{
>+      return (xdr_string(xdrsp, &dirp, MNTPATHLEN));
>+}
>+
>+static int
>+nfs_umount_rpc_call(const char *spec, const char *opts)
>+{
>+      register CLIENT *clp;
>+      struct sockaddr_in saddr;
>+      struct timeval pertry, try;
>+      enum clnt_stat clnt_stat;
>+      int port = 0;
>+      int so = RPC_ANYSOCK;
>+      struct hostent *hostp;
>+      char *hostname;
>+      char *dirname;
>+      char *p;
>+      char *tmp;
>+
>+      if (spec == NULL || (p = strchr(spec,':')) == NULL)
>+		return 0;
>+      tmp = strdup(spec);
>+      hostname = strtok(tmp, ":");
>+      dirname = strtok(NULL, ":");
>+
>+      if (opts && (p = strstr(opts, "addr="))) {
>+	   char *q;
>+
>+	   free(hostname);
>+           tmp = strdup(p);
>+           strtok(tmp, "= ,");
>+           hostname = strtok(NULL, "= ,");
>+      }
>+
>+      if (opts && (p = strstr(opts, "mountport=")) && isdigit(*(p+10)))
>+	   port = atoi(p+10);
>+
>+      sleep(5);
>+      if (hostname[0] >= '0' && hostname[0] <= '9'){
>+	   saddr.sin_addr.s_addr = inet_addr(hostname);
>+      } else {
>+	   if (mygethostbyname(hostname, &saddr.sin_addr) < 0) 
>+		return 1;
>+      }
>+
>+      saddr.sin_family = AF_INET;
>+      saddr.sin_port = htons(port);
>+      pertry.tv_sec = 3;
>+      pertry.tv_usec = 0;
>+      if (opts && (p = strstr(opts, "tcp"))) {
>+	   /* possibly: make sure option is not "notcp"
>+	      possibly: try udp if tcp fails */
>+	   if ((clp = clnttcp_create(&saddr, MOUNTPROG, MOUNTVERS,
>+				     &so, 0, 0)) == NULL) {
>+		clnt_pcreateerror("Cannot MOUNTPROG RPC (tcp)");
>+		return 1;
>+	   }
>+      } else {
>+           if ((clp = clntudp_create(&saddr, MOUNTPROG, MOUNTVERS,
>+				     pertry, &so)) == NULL) {
>+		clnt_pcreateerror("Cannot MOUNTPROG RPC");
>+		return 1;
>+	   }
>+      }
>+      clp->cl_auth = authunix_create_default();
>+      try.tv_sec = 20;
>+      try.tv_usec = 0;
>+      clnt_stat = clnt_call(clp, MOUNTPROC_UMNT,
>+			    (xdrproc_t) xdr_dir, dirname,
>+			    (xdrproc_t) xdr_void, (caddr_t) 0,
>+			    try);
>+
>+      if (clnt_stat != RPC_SUCCESS) {
>+	   clnt_perror(clp, "Bad UMNT RPC");
>+	   return 1;
>+      }
>+      auth_destroy(clp->cl_auth);
>+      clnt_destroy(clp);
>+
>+      return 0;
>+}
>+
> void undoMount(struct unmountInfo * fs, int numFs, int this) {
>     int len = strlen(fs[this].name);
>     int i;
>@@ -66,12 +151,20 @@ void undoMount(struct unmountInfo * fs, int numFs, int this) {
> 
>     printf("\t%s", fs[this].name);
>     /* don't need to unmount /tmp.  it is busy anyway. */
>-    if (!testing) {
>-	if (umount2(fs[this].name, 0) < 0) {
>-	    printf(" umount failed (%d)", errno);
>-	} else {
>-	    printf(" done");
>-	}
>+    if (!testing && strncmp (fs[this].name, "/proc", 5) != 0) {
>+        sleep(2);
>+        if(strcmp(fs[this].fstype, "nfs") == 0){
>+            if(nfs_umount_rpc_call(fs[this].device, "") != 0){
>+                printf(" umount failed (%d)", errno);
>+            }else{
>+                printf(" done");
>+            }
>+        } else{
>+            if (umount2(fs[this].name, 0) < 0) 
>+                printf(" umount failed (%d)", errno);
>+            else
>+                printf(" done");
>+        }
>     }
>     printf("\n");
> }
>@@ -112,12 +205,11 @@ void undoLoop(struct unmountInfo * fs, int numFs, int this) {
> void unmountFilesystems(void) {
>     int fd, size;
>     char buf[65535];			/* this should be big enough */
>-    char * chptr, * start;
>+    char * chptr, * start, * device, * fst;
>     struct unmountInfo filesystems[500];
>     int numFilesystems = 0;
>     int i;
>     struct loop_info li;
>-    char * device;
>     struct stat sb;
> 
>     fd = open("/proc/mounts", O_RDONLY, 0);
>@@ -141,11 +233,16 @@ void unmountFilesystems(void) {
> 	start = chptr;
> 	while (*chptr != ' ') chptr++;
> 	*chptr++ = '\0';
>+        fst = chptr;
>+        while (*chptr != ' ') chptr++;
>+        *chptr++ = '\0';
> 
> 	if (strcmp(start, "/") && strcmp(start, "/tmp")) {
> 	    filesystems[numFilesystems].name = strdup(start);
> 	    filesystems[numFilesystems].what = FS;
> 	    filesystems[numFilesystems].mounted = 1;
>+            filesystems[numFilesystems].fstype = strdup(fst);
>+            filesystems[numFilesystems].device = strdup(device);
> 
> 	    stat(start, &sb);
> 	    if ((sb.st_dev >> 8) == 7) {

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Attachments on bug 208103: 137140 | 137141 | 298724 | 299736 | 300063 | 300064 | 301816