Re: [PATCH][REFERENCE ONLY] 9p: ramfs 9p server
Latchesar Ionkov wrote: Sample ramfs file server that uses the in-kernel 9P file server support. This code is for reference only. Reference code generally goes in Documentation/ -- Chris - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH][REFERENCE ONLY] 9p: ramfs 9p server
Sample ramfs file server that uses the in-kernel 9P file server support.
This code is for reference only.
Signed-off-by: Latchesar Ionkov <[EMAIL PROTECTED]>
---
net/9p/Kconfig |8 +-
net/9p/Makefile |1 +
net/9p/ramfs/ramfs.c | 986 ++
3 files changed, 994 insertions(+), 1 deletions(-)
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index 5b0dc28..68f7496 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -23,11 +23,17 @@ config NET_9P_FD
file descriptors. TCP/IP is the default transport for 9p,
so if you are going to use 9p, you'll likely want this.
-config NET_9P_SRV
+menuconfig NET_9P_SRV
tristate "9P server support"
depends on NET_9P
help
Say Y if you want the 9P server support
+
+config NET_9P_RAMFS
+tristate "9P ramfs sample file server"
+depends on NET_9P_SRV && NET_9P_LOOP
+help
+ Say Y if you want the 9P ramfs support
config NET_9P_VIRTIO
depends on NET_9P && EXPERIMENTAL && VIRTIO
tristate "9P Virtio Transport (Experimental)"
diff --git a/net/9p/Makefile b/net/9p/Makefile
index 6ee024e..3808c40 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_NET_9P_FD) += 9pnet_fd.o
obj-$(CONFIG_NET_9P_LOOP) += 9pnet_loop.o
obj-$(CONFIG_NET_9P_SRV) += 9psrv.o
obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
+obj-$(CONFIG_NET_9P_RAMFS) += ramfs/
9pnet-objs := \
mod.o \
diff --git a/net/9p/ramfs/ramfs.c b/net/9p/ramfs/ramfs.c
new file mode 100644
index 000..3aff620
--- /dev/null
+++ b/net/9p/ramfs/ramfs.c
@@ -0,0 +1,986 @@
+/*
+ * net/9p/srv/ramfs.c
+ *
+ * Simple RAM filesystem
+ *
+ * Copyright (C) 2007 by Latchesar Ionkov <[EMAIL PROTECTED]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to:
+ * Free Software Foundation
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA 02111-1301 USA
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define ROOTPERM 0777
+
+struct ramfs_file {
+ struct mutexlock; /* file lock */
+ atomic_trefcount;
+ unsigned long status;
+ char*name;
+ u32 perm;
+ u64 length;
+ u32 atime;
+ u32 mtime;
+ u32 uid;
+ u32 gid;
+ u32 muid;
+ char*extension;
+ struct p9_qid qid;
+ int excl;
+
+ struct ramfs_file *parent;
+ struct ramfs_file *next; /* protected by parent lock */
+ struct ramfs_file *prev;
+
+ struct ramfs_file *dirents; /* if directory */
+ struct ramfs_file *dirlast;
+
+ struct list_headfid_list; /* all fids for a file */
+
+ u8 *data;
+ u64 datasize;
+};
+
+struct ramfs_fid {
+ struct ramfs_file *file;
+ int omode;
+ u64 diroffset;
+ struct ramfs_file *dirent;
+ struct list_headfid_list; /* all fids for a file */
+};
+
+enum {
+ Removed = 1,
+};
+
+static struct p9srv_type *ramfs_srv_type;
+static struct ramfs_file *root;
+static u64 qidpath;
+static int blksize = 8192;
+
+static char *Enospace = "no space left";
+static char *Einternal = "internal error";
+
+static void ramfs_attach(struct p9srv_req *req);
+static void ramfs_walk(struct p9srv_req *req);
+static void ramfs_open(struct p9srv_req *req);
+static void ramfs_create(struct p9srv_req *req);
+static void ramfs_read(struct p9srv_req *req);
+static void ramfs_write(struct p9srv_req *req);
+static void ramfs_clunk(struct p9srv_req *req);
+static void ramfs_remove(struct p9srv_req *req);
+static void ramfs_stat(struct p9srv_req *req);
+static void ramfs_wstat(struct p9srv_req *req);
+static void ramfs_fiddestroy(struct p9srv_fid *fid);
+static void ramfs_connopen(struct p9srv_conn *conn);
+static void ramfs_connclose(struct p9srv_conn *conn);
+
+static char *p9_strdup(struct p9_str *str)
+{
+ char *ret;
+
+ ret = kmalloc(str->len + 1, GFP_KERNEL);
+ memmove(ret, str->str, str->len);
+ ret[str->len] = '\0';
+
+
Re: [PATCH][REFERENCE ONLY] 9p: ramfs 9p server
Latchesar Ionkov wrote: Sample ramfs file server that uses the in-kernel 9P file server support. This code is for reference only. Reference code generally goes in Documentation/ -- Chris - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH][REFERENCE ONLY] 9p: ramfs 9p server
Sample ramfs file server that uses the in-kernel 9P file server support.
This code is for reference only.
Signed-off-by: Latchesar Ionkov [EMAIL PROTECTED]
---
net/9p/Kconfig |8 +-
net/9p/Makefile |1 +
net/9p/ramfs/ramfs.c | 986 ++
3 files changed, 994 insertions(+), 1 deletions(-)
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index 5b0dc28..68f7496 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -23,11 +23,17 @@ config NET_9P_FD
file descriptors. TCP/IP is the default transport for 9p,
so if you are going to use 9p, you'll likely want this.
-config NET_9P_SRV
+menuconfig NET_9P_SRV
tristate 9P server support
depends on NET_9P
help
Say Y if you want the 9P server support
+
+config NET_9P_RAMFS
+tristate 9P ramfs sample file server
+depends on NET_9P_SRV NET_9P_LOOP
+help
+ Say Y if you want the 9P ramfs support
config NET_9P_VIRTIO
depends on NET_9P EXPERIMENTAL VIRTIO
tristate 9P Virtio Transport (Experimental)
diff --git a/net/9p/Makefile b/net/9p/Makefile
index 6ee024e..3808c40 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_NET_9P_FD) += 9pnet_fd.o
obj-$(CONFIG_NET_9P_LOOP) += 9pnet_loop.o
obj-$(CONFIG_NET_9P_SRV) += 9psrv.o
obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
+obj-$(CONFIG_NET_9P_RAMFS) += ramfs/
9pnet-objs := \
mod.o \
diff --git a/net/9p/ramfs/ramfs.c b/net/9p/ramfs/ramfs.c
new file mode 100644
index 000..3aff620
--- /dev/null
+++ b/net/9p/ramfs/ramfs.c
@@ -0,0 +1,986 @@
+/*
+ * net/9p/srv/ramfs.c
+ *
+ * Simple RAM filesystem
+ *
+ * Copyright (C) 2007 by Latchesar Ionkov [EMAIL PROTECTED]
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to:
+ * Free Software Foundation
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA 02111-1301 USA
+ *
+ */
+
+#include linux/module.h
+#include linux/moduleparam.h
+#include linux/errno.h
+#include linux/fs.h
+#include linux/poll.h
+#include linux/parser.h
+#include net/9p/9p.h
+#include net/9p/transport.h
+#include net/9p/srv.h
+
+#define ROOTPERM 0777
+
+struct ramfs_file {
+ struct mutexlock; /* file lock */
+ atomic_trefcount;
+ unsigned long status;
+ char*name;
+ u32 perm;
+ u64 length;
+ u32 atime;
+ u32 mtime;
+ u32 uid;
+ u32 gid;
+ u32 muid;
+ char*extension;
+ struct p9_qid qid;
+ int excl;
+
+ struct ramfs_file *parent;
+ struct ramfs_file *next; /* protected by parent lock */
+ struct ramfs_file *prev;
+
+ struct ramfs_file *dirents; /* if directory */
+ struct ramfs_file *dirlast;
+
+ struct list_headfid_list; /* all fids for a file */
+
+ u8 *data;
+ u64 datasize;
+};
+
+struct ramfs_fid {
+ struct ramfs_file *file;
+ int omode;
+ u64 diroffset;
+ struct ramfs_file *dirent;
+ struct list_headfid_list; /* all fids for a file */
+};
+
+enum {
+ Removed = 1,
+};
+
+static struct p9srv_type *ramfs_srv_type;
+static struct ramfs_file *root;
+static u64 qidpath;
+static int blksize = 8192;
+
+static char *Enospace = no space left;
+static char *Einternal = internal error;
+
+static void ramfs_attach(struct p9srv_req *req);
+static void ramfs_walk(struct p9srv_req *req);
+static void ramfs_open(struct p9srv_req *req);
+static void ramfs_create(struct p9srv_req *req);
+static void ramfs_read(struct p9srv_req *req);
+static void ramfs_write(struct p9srv_req *req);
+static void ramfs_clunk(struct p9srv_req *req);
+static void ramfs_remove(struct p9srv_req *req);
+static void ramfs_stat(struct p9srv_req *req);
+static void ramfs_wstat(struct p9srv_req *req);
+static void ramfs_fiddestroy(struct p9srv_fid *fid);
+static void ramfs_connopen(struct p9srv_conn *conn);
+static void ramfs_connclose(struct p9srv_conn *conn);
+
+static char *p9_strdup(struct p9_str *str)
+{
+ char *ret;
+
+ ret =
