shithub: ext4srv

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add mkfs run

--- a/common.h

+++ b/common.h

@@ -11,6 +11,12 @@

 	int cachewb;

 	int linkmode;

 	int asroot;

+

+	int fstype;

+	int blksz;

+	int inodesz;

+	u32int ninode;

+	char *label;

 };

 struct Part {

--- a/ext4srv.c

+++ b/ext4srv.c

@@ -36,6 +36,12 @@

 	.cachewb = 0,

 	.asroot = 0,

 	.linkmode = Lhide,

+

+	.fstype = -1,

+	.blksz = 0,

+	.label = nil,

+	.inodesz = 256,

+	.ninode = 0,

 };

 static u8int zero[65536];

 static char Eperm[] = "permission denied";

@@ -301,7 +307,7 @@

 	/* first make sure this is a directory */

 	t = ext4_inode_type(a->p->sb, &inode);

-	if((t & EXT4_INODE_MODE_DIRECTORY) == 0){

+	if(t != EXT4_INODE_MODE_DIRECTORY){

 		err = "create in non-directory";

 		goto error;

 	}

@@ -556,13 +562,12 @@

 	if(a->uid == Root || ((g = findgroupid(&a->p->groups, ext4_inode_get_uid(&inode))) != nil && g->id == a->uid)){

 		t = ext4_inode_type(a->p->sb, &inode);

-		if((t & EXT4_INODE_MODE_DIRECTORY) != 0 && ext4_dir_open(&dir, s) == 0){

-			do{

-				e = ext4_dir_entry_next(&dir);

-				empty = e == nil;

-				if(empty)

+		if(t == EXT4_INODE_MODE_DIRECTORY && ext4_dir_open(&dir, s) == 0){

+			for(empty = 1; empty;){

+				if((e = ext4_dir_entry_next(&dir)) == nil)

 					break;

-			}while(strcmp((char*)e->name, ".") == 0 || strcmp((char*)e->name, "..") == 0);

+				empty = e->name == nil || strcmp((char*)e->name, ".") == 0 || strcmp((char*)e->name, "..") == 0;

+			}

 			ext4_dir_close(&dir);

 			if(!empty)

 				err = "directory not empty";

@@ -627,7 +632,7 @@

 	isowner = a->uid == Root || a->uid == uid;

 	/* permission to truncate */

-	isdir = ext4_inode_type(a->p->sb, &inode) & EXT4_INODE_MODE_DIRECTORY;

+	isdir = ext4_inode_type(a->p->sb, &inode) == EXT4_INODE_MODE_DIRECTORY;

 	if(r->d.length >= 0 && (!wrperm || isdir || !ext4_inode_can_truncate(a->p->sb, &inode))){

 		err = Eperm;

 		goto error;

@@ -747,7 +752,7 @@

 	if((r = ext4_raw_inode_fill(s, &ino, &inode)) != 0)

 		goto error;

 	t = ext4_inode_type(a->p->sb, &inode);

-	if((t & EXT4_INODE_MODE_DIRECTORY) == 0){

+	if(t != EXT4_INODE_MODE_DIRECTORY){

 		free(s);

 		return "not a directory";

 	}

@@ -768,11 +773,15 @@

 	}

 	if((r = ext4_raw_inode_fill(s, &ino, &inode)) != 0)

 		goto error;

+	t = ext4_inode_type(a->p->sb, &inode);

+	if(opts.linkmode == Lhide && t == EXT4_INODE_MODE_SOFTLINK){

+		r = ENOENT;

+		goto error;

+	}

 	qid->type = 0;

 	qid->path = a->p->qidmask.path | ino;

 	qid->vers = ext4_inode_get_generation(&inode);

-	t = ext4_inode_type(a->p->sb, &inode);

-	if(t & EXT4_INODE_MODE_DIRECTORY){

+	if(t == EXT4_INODE_MODE_DIRECTORY){

 		qid->type |= QTDIR;

 		a->type = Adir;

 	}else

@@ -878,6 +887,7 @@

 usage(void)

 {

 	fprint(2, "usage: %s [-C] [-R] [-g GROUPFILE] [-l resolve] [-s SRVNAME]\n", argv0);

+	fprint(2, "mkfs:  %s -M (2|3|4) [-L LABEL] [-b BLKSIZE] [-N NUMINODES] [-I INODESZ] DEVICE\n", argv0);

 	threadexitsall("usage");

 }

@@ -886,6 +896,8 @@

 {

 	if(strcmp(m, "resolve") == 0)

 		return Lresolve;

+	if(strcmp(m, "hide") == 0)

+		return Lhide;

 	usage();

 	return -1;

@@ -902,16 +914,20 @@

 	ARGBEGIN{

 	case 'D':

 		chatty9p++;

+nomkfs:

+		if(opts.fstype > 0)

+			usage();

+		opts.fstype = 0;

 		break;

 	case 'C':

 		opts.cachewb = 1;

-		break;

+		goto nomkfs;

 	case 'l':

 		opts.linkmode = linkmode(EARGF(usage()));

-		break;

+		goto nomkfs;

 	case 's':

 		srv = EARGF(usage());

-		break;

+		goto nomkfs;

 	case 'g':

 		gr = EARGF(usage());

 		if((f = open(gr, OREAD)) < 0)

@@ -925,15 +941,57 @@

 			sysfatal("%s: read failed", gr);

 		close(f);

 		opts.group[sz] = 0;

-		break;

+		goto nomkfs;

 	case 'R':

 		opts.asroot = 1;

+		goto nomkfs;

+

+	case 'M':

+		if(!opts.fstype)

+			usage();

+		opts.fstype = atoi(EARGF(usage()));

+		if(opts.fstype < 2 || opts.fstype > 4)

+			usage();

 		break;

-	}ARGEND

-	if(argc != 0)

+	case 'b':

+		opts.blksz = atoi(EARGF(usage()));

+		if(opts.blksz != 1024 && opts.blksz != 2048 && opts.blksz != 4096)

+			usage();

+yesmkfs:

+		if(opts.fstype < 1)

+			usage();

+		break;

+	case 'L':

+		opts.label = EARGF(usage());

+		goto yesmkfs;

+	case 'I':

+		opts.inodesz = atoi(EARGF(usage()));

+		if(opts.inodesz < 128 || ((opts.inodesz-1) & opts.inodesz) != 0)

+			usage();

+		goto yesmkfs;

+	case 'N':

+		opts.ninode = atoi(EARGF(usage()));

+		if(opts.ninode < 1)

+			usage();

+		goto yesmkfs;

+

+	default:

 		usage();

+	}ARGEND

-	threadpostmountsrv(&fs, srv, nil, 0);

-	threadexits(nil);

+	if(opts.fstype > 1){

+		if(argc != 1)

+			usage();

+		if(openpart(argv[0], &opts) == nil)

+			sysfatal("%r");

+		closeallparts();

+		threadexitsall(nil);

+	}else{

+		if(argc != 0)

+			usage();

+

+		threadpostmountsrv(&fs, srv, nil, 0);

+		threadexits(nil);

+	}

 }

--- a/part.c

+++ b/part.c

@@ -1,4 +1,5 @@

 #include <ext4.h>

+#include <ext4_mkfs.h>

 #include <thread.h>

 #include "group.h"

 #include "common.h"

@@ -275,11 +276,13 @@

 Part *

 openpart(char *dev, Opts *opts)

 {

+	struct ext4_mkfs_info info;

+	struct ext4_fs fs;

 	u32int blksz;

+	int f, r;

 	Part *p;

 	char *s;

 	Dir *d;

-	int f;

 	d = nil;

 	p = nil;

@@ -312,6 +315,20 @@

 		p->bdif.ph_bcnt = d->length/blksz;

 		p->bdif.ph_bbuf = p->blkbuf;

 		p->bdif.p_user = p;

+

+		if(opts->fstype > 1){

+			memset(&fs, 0, sizeof(fs));

+			memset(&info, 0, sizeof(info));

+			info.block_size = opts->blksz;

+			info.label = opts->label;

+			info.inode_size = opts->inodesz;

+			info.inodes = opts->ninode;

+			info.journal = true;

+			if((r = ext4_mkfs(&fs, &p->bdev, &info, opts->fstype)) != 0){

+				werrstr("mkfs: %s", errno2s(r));

+				goto error;

+			}

+		}

 		if(mountpart(p, opts) != 0)

 			goto error;