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-rw-r--r--fsdev/virtfs-proxy-helper.c99
-rw-r--r--hw/9pfs/virtio-9p-proxy.c124
-rw-r--r--hw/9pfs/virtio-9p-proxy.h4
3 files changed, 219 insertions, 8 deletions
diff --git a/fsdev/virtfs-proxy-helper.c b/fsdev/virtfs-proxy-helper.c
index 204bb4a540..703ac8567f 100644
--- a/fsdev/virtfs-proxy-helper.c
+++ b/fsdev/virtfs-proxy-helper.c
@@ -27,6 +27,7 @@
#include <stdbool.h>
#include <sys/vfs.h>
#include <sys/stat.h>
+#include <attr/xattr.h>
#include "qemu-common.h"
#include "virtio-9p-marshal.h"
#include "hw/9pfs/virtio-9p-proxy.h"
@@ -329,6 +330,62 @@ static int send_response(int sock, struct iovec *iovec, int size)
return 0;
}
+static int do_getxattr(int type, struct iovec *iovec, struct iovec *out_iovec)
+{
+ int size = 0, offset, retval;
+ V9fsString path, name, xattr;
+
+ v9fs_string_init(&xattr);
+ v9fs_string_init(&path);
+ retval = proxy_unmarshal(iovec, PROXY_HDR_SZ, "ds", &size, &path);
+ if (retval < 0) {
+ return retval;
+ }
+ offset = PROXY_HDR_SZ + retval;
+
+ if (size) {
+ xattr.data = g_malloc(size);
+ xattr.size = size;
+ }
+ switch (type) {
+ case T_LGETXATTR:
+ v9fs_string_init(&name);
+ retval = proxy_unmarshal(iovec, offset, "s", &name);
+ if (retval > 0) {
+ retval = lgetxattr(path.data, name.data, xattr.data, size);
+ if (retval < 0) {
+ retval = -errno;
+ } else {
+ xattr.size = retval;
+ }
+ }
+ v9fs_string_free(&name);
+ break;
+ case T_LLISTXATTR:
+ retval = llistxattr(path.data, xattr.data, size);
+ if (retval < 0) {
+ retval = -errno;
+ } else {
+ xattr.size = retval;
+ }
+ break;
+ }
+ if (retval < 0) {
+ goto err_out;
+ }
+
+ if (!size) {
+ proxy_marshal(out_iovec, PROXY_HDR_SZ, "d", retval);
+ retval = sizeof(retval);
+ } else {
+ retval = proxy_marshal(out_iovec, PROXY_HDR_SZ, "s", &xattr);
+ }
+err_out:
+ v9fs_string_free(&xattr);
+ v9fs_string_free(&path);
+ return retval;
+}
+
static void stat_to_prstat(ProxyStat *pr_stat, struct stat *stat)
{
memset(pr_stat, 0, sizeof(*pr_stat));
@@ -605,6 +662,8 @@ static int process_reply(int sock, int type,
case T_UTIME:
case T_RENAME:
case T_REMOVE:
+ case T_LSETXATTR:
+ case T_LREMOVEXATTR:
if (send_status(sock, out_iovec, retval) < 0) {
return -1;
}
@@ -612,6 +671,8 @@ static int process_reply(int sock, int type,
case T_LSTAT:
case T_STATFS:
case T_READLINK:
+ case T_LGETXATTR:
+ case T_LLISTXATTR:
if (send_response(sock, out_iovec, retval) < 0) {
return -1;
}
@@ -625,10 +686,13 @@ static int process_reply(int sock, int type,
static int process_requests(int sock)
{
+ int flags;
+ int size = 0;
int retval = 0;
uint64_t offset;
ProxyHeader header;
int mode, uid, gid;
+ V9fsString name, value;
struct timespec spec[2];
V9fsString oldpath, path;
struct iovec in_iovec, out_iovec;
@@ -756,6 +820,41 @@ static int process_requests(int sock)
}
v9fs_string_free(&path);
break;
+ case T_LGETXATTR:
+ case T_LLISTXATTR:
+ retval = do_getxattr(header.type, &in_iovec, &out_iovec);
+ break;
+ case T_LSETXATTR:
+ v9fs_string_init(&path);
+ v9fs_string_init(&name);
+ v9fs_string_init(&value);
+ retval = proxy_unmarshal(&in_iovec, PROXY_HDR_SZ, "sssdd", &path,
+ &name, &value, &size, &flags);
+ if (retval > 0) {
+ retval = lsetxattr(path.data,
+ name.data, value.data, size, flags);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ v9fs_string_free(&name);
+ v9fs_string_free(&value);
+ break;
+ case T_LREMOVEXATTR:
+ v9fs_string_init(&path);
+ v9fs_string_init(&name);
+ retval = proxy_unmarshal(&in_iovec,
+ PROXY_HDR_SZ, "ss", &path, &name);
+ if (retval > 0) {
+ retval = lremovexattr(path.data, name.data);
+ if (retval < 0) {
+ retval = -errno;
+ }
+ }
+ v9fs_string_free(&path);
+ v9fs_string_free(&name);
+ break;
default:
goto err_out;
break;
diff --git a/hw/9pfs/virtio-9p-proxy.c b/hw/9pfs/virtio-9p-proxy.c
index ef118ff690..22e9b68342 100644
--- a/hw/9pfs/virtio-9p-proxy.c
+++ b/hw/9pfs/virtio-9p-proxy.c
@@ -234,6 +234,15 @@ static int v9fs_receive_response(V9fsProxy *proxy, int type,
v9fs_string_free(&target);
break;
}
+ case T_LGETXATTR:
+ case T_LLISTXATTR: {
+ V9fsString xattr;
+ v9fs_string_init(&xattr);
+ retval = proxy_unmarshal(reply, PROXY_HDR_SZ, "s", &xattr);
+ memcpy(response, xattr.data, xattr.size);
+ v9fs_string_free(&xattr);
+ break;
+ }
default:
return -1;
}
@@ -291,6 +300,7 @@ static int v9fs_request(V9fsProxy *proxy, int type,
ProxyHeader header = { 0, 0};
struct timespec spec[2];
int flags, mode, uid, gid;
+ V9fsString *name, *value;
V9fsString *path, *oldpath;
struct iovec *iovec = NULL, *reply = NULL;
@@ -457,6 +467,48 @@ static int v9fs_request(V9fsProxy *proxy, int type,
header.type = T_REMOVE;
}
break;
+ case T_LGETXATTR:
+ size = va_arg(ap, int);
+ path = va_arg(ap, V9fsString *);
+ name = va_arg(ap, V9fsString *);
+ retval = proxy_marshal(iovec, PROXY_HDR_SZ,
+ "dss", size, path, name);
+ if (retval > 0) {
+ header.size = retval;
+ header.type = T_LGETXATTR;
+ }
+ break;
+ case T_LLISTXATTR:
+ size = va_arg(ap, int);
+ path = va_arg(ap, V9fsString *);
+ retval = proxy_marshal(iovec, PROXY_HDR_SZ, "ds", size, path);
+ if (retval > 0) {
+ header.size = retval;
+ header.type = T_LLISTXATTR;
+ }
+ break;
+ case T_LSETXATTR:
+ path = va_arg(ap, V9fsString *);
+ name = va_arg(ap, V9fsString *);
+ value = va_arg(ap, V9fsString *);
+ size = va_arg(ap, int);
+ flags = va_arg(ap, int);
+ retval = proxy_marshal(iovec, PROXY_HDR_SZ, "sssdd",
+ path, name, value, size, flags);
+ if (retval > 0) {
+ header.size = retval;
+ header.type = T_LSETXATTR;
+ }
+ break;
+ case T_LREMOVEXATTR:
+ path = va_arg(ap, V9fsString *);
+ name = va_arg(ap, V9fsString *);
+ retval = proxy_marshal(iovec, PROXY_HDR_SZ, "ss", path, name);
+ if (retval > 0) {
+ header.size = retval;
+ header.type = T_LREMOVEXATTR;
+ }
+ break;
default:
error_report("Invalid type %d\n", type);
retval = -EINVAL;
@@ -498,6 +550,8 @@ static int v9fs_request(V9fsProxy *proxy, int type,
case T_TRUNCATE:
case T_UTIME:
case T_REMOVE:
+ case T_LSETXATTR:
+ case T_LREMOVEXATTR:
if (v9fs_receive_status(proxy, reply, &retval) < 0) {
goto close_error;
}
@@ -509,6 +563,18 @@ static int v9fs_request(V9fsProxy *proxy, int type,
goto close_error;
}
break;
+ case T_LGETXATTR:
+ case T_LLISTXATTR:
+ if (!size) {
+ if (v9fs_receive_status(proxy, reply, &retval) < 0) {
+ goto close_error;
+ }
+ } else {
+ if (v9fs_receive_response(proxy, type, &retval, response) < 0) {
+ goto close_error;
+ }
+ }
+ break;
}
err_out:
@@ -884,29 +950,71 @@ static int proxy_statfs(FsContext *s, V9fsPath *fs_path, struct statfs *stbuf)
static ssize_t proxy_lgetxattr(FsContext *ctx, V9fsPath *fs_path,
const char *name, void *value, size_t size)
{
- errno = EOPNOTSUPP;
- return -1;
+ int retval;
+ V9fsString xname;
+
+ v9fs_string_init(&xname);
+ v9fs_string_sprintf(&xname, "%s", name);
+ retval = v9fs_request(ctx->private, T_LGETXATTR, value, "dss", size,
+ fs_path, &xname);
+ v9fs_string_free(&xname);
+ if (retval < 0) {
+ errno = -retval;
+ }
+ return retval;
}
static ssize_t proxy_llistxattr(FsContext *ctx, V9fsPath *fs_path,
void *value, size_t size)
{
- errno = EOPNOTSUPP;
- return -1;
+ int retval;
+ retval = v9fs_request(ctx->private, T_LLISTXATTR, value, "ds", size,
+ fs_path);
+ if (retval < 0) {
+ errno = -retval;
+ }
+ return retval;
}
static int proxy_lsetxattr(FsContext *ctx, V9fsPath *fs_path, const char *name,
void *value, size_t size, int flags)
{
- errno = EOPNOTSUPP;
- return -1;
+ int retval;
+ V9fsString xname, xvalue;
+
+ v9fs_string_init(&xname);
+ v9fs_string_sprintf(&xname, "%s", name);
+
+ v9fs_string_init(&xvalue);
+ xvalue.size = size;
+ xvalue.data = g_malloc(size);
+ memcpy(xvalue.data, value, size);
+
+ retval = v9fs_request(ctx->private, T_LSETXATTR, value, "sssdd",
+ fs_path, &xname, &xvalue, size, flags);
+ v9fs_string_free(&xname);
+ v9fs_string_free(&xvalue);
+ if (retval < 0) {
+ errno = -retval;
+ }
+ return retval;
}
static int proxy_lremovexattr(FsContext *ctx, V9fsPath *fs_path,
const char *name)
{
- errno = EOPNOTSUPP;
- return -1;
+ int retval;
+ V9fsString xname;
+
+ v9fs_string_init(&xname);
+ v9fs_string_sprintf(&xname, "%s", name);
+ retval = v9fs_request(ctx->private, T_LREMOVEXATTR, NULL, "ss",
+ fs_path, &xname);
+ v9fs_string_free(&xname);
+ if (retval < 0) {
+ errno = -retval;
+ }
+ return retval;
}
static int proxy_name_to_path(FsContext *ctx, V9fsPath *dir_path,
diff --git a/hw/9pfs/virtio-9p-proxy.h b/hw/9pfs/virtio-9p-proxy.h
index bc5ba739bf..7b3b0a9a39 100644
--- a/hw/9pfs/virtio-9p-proxy.h
+++ b/hw/9pfs/virtio-9p-proxy.h
@@ -54,6 +54,10 @@ enum {
T_UTIME,
T_RENAME,
T_REMOVE,
+ T_LGETXATTR,
+ T_LLISTXATTR,
+ T_LSETXATTR,
+ T_LREMOVEXATTR,
};
typedef struct {
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-12 06:20:58 +0000