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qemu
0331-9pfs-rename-virtio-9p-xattr-user-.-.patch
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File 0331-9pfs-rename-virtio-9p-xattr-user-.-.patch of Package qemu
From e1eb6b193df1e252c0650c3ba5faed4726cec73c Mon Sep 17 00:00:00 2001 From: Wei Liu <wei.liu2@citrix.com> Date: Wed, 18 Nov 2015 18:31:52 +0000 Subject: [PATCH] 9pfs: rename virtio-9p-xattr{,-user}.{c,h} to 9p-xattr{,-user}.{c,h} These three files are not virtio specific. Rename them to generic names. Fix comments and header inclusion in various files. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> (cherry picked from commit 267ae092e211f4f5ffe2340b7f869fcab3c5c027) [BR: Fix and/or infrastructure for BSC#1020427 CVE-2016-9602] Signed-off-by: Bruce Rogers <brogers@suse.com> --- hw/9pfs/9p-handle.c | 2 +- hw/9pfs/9p-local.c | 2 +- hw/9pfs/9p-posix-acl.c | 2 +- hw/9pfs/9p-xattr-user.c | 127 +++++++++++++++++++++++++ hw/9pfs/9p-xattr.c | 163 ++++++++++++++++++++++++++++++++ hw/9pfs/9p-xattr.h | 120 ++++++++++++++++++++++++ hw/9pfs/Makefile.objs | 4 +- hw/9pfs/virtio-9p-device.c | 2 +- hw/9pfs/virtio-9p-synth.c | 2 +- hw/9pfs/virtio-9p-xattr-user.c | 128 ------------------------- hw/9pfs/virtio-9p-xattr.c | 164 --------------------------------- hw/9pfs/virtio-9p-xattr.h | 120 ------------------------ hw/9pfs/virtio-9p.c | 2 +- 13 files changed, 418 insertions(+), 420 deletions(-) diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c index 1c53e5ccf1..8709fddd37 100644 --- a/hw/9pfs/9p-handle.c +++ b/hw/9pfs/9p-handle.c @@ -12,7 +12,7 @@ */ #include "virtio-9p.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #include <arpa/inet.h> #include <pwd.h> #include <grp.h> diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c index 093698600d..566fb8c6f8 100644 --- a/hw/9pfs/9p-local.c +++ b/hw/9pfs/9p-local.c @@ -12,7 +12,7 @@ */ #include "virtio-9p.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #include <arpa/inet.h> #include <pwd.h> #include <grp.h> diff --git a/hw/9pfs/9p-posix-acl.c b/hw/9pfs/9p-posix-acl.c index 517b5fc50d..d20802f70f 100644 --- a/hw/9pfs/9p-posix-acl.c +++ b/hw/9pfs/9p-posix-acl.c @@ -15,7 +15,7 @@ #include "qemu/xattr.h" #include "virtio-9p.h" #include "fsdev/file-op-9p.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #define MAP_ACL_ACCESS "user.virtfs.system.posix_acl_access" #define MAP_ACL_DEFAULT "user.virtfs.system.posix_acl_default" diff --git a/hw/9pfs/9p-xattr-user.c b/hw/9pfs/9p-xattr-user.c new file mode 100644 index 0000000000..163b158362 --- /dev/null +++ b/hw/9pfs/9p-xattr-user.c @@ -0,0 +1,127 @@ +/* + * 9p user. xattr callback + * + * Copyright IBM, Corp. 2010 + * + * Authors: + * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include <sys/types.h> +#include "virtio-9p.h" +#include "fsdev/file-op-9p.h" +#include "9p-xattr.h" + + +static ssize_t mp_user_getxattr(FsContext *ctx, const char *path, + const char *name, void *value, size_t size) +{ + char *buffer; + ssize_t ret; + + if (strncmp(name, "user.virtfs.", 12) == 0) { + /* + * Don't allow fetch of user.virtfs namesapce + * in case of mapped security + */ + errno = ENOATTR; + return -1; + } + buffer = rpath(ctx, path); + ret = lgetxattr(buffer, name, value, size); + g_free(buffer); + return ret; +} + +static ssize_t mp_user_listxattr(FsContext *ctx, const char *path, + char *name, void *value, size_t size) +{ + int name_size = strlen(name) + 1; + if (strncmp(name, "user.virtfs.", 12) == 0) { + + /* check if it is a mapped posix acl */ + if (strncmp(name, "user.virtfs.system.posix_acl_", 29) == 0) { + /* adjust the name and size */ + name += 12; + name_size -= 12; + } else { + /* + * Don't allow fetch of user.virtfs namesapce + * in case of mapped security + */ + return 0; + } + } + if (!value) { + return name_size; + } + + if (size < name_size) { + errno = ERANGE; + return -1; + } + + /* name_size includes the trailing NUL. */ + memcpy(value, name, name_size); + return name_size; +} + +static int mp_user_setxattr(FsContext *ctx, const char *path, const char *name, + void *value, size_t size, int flags) +{ + char *buffer; + int ret; + + if (strncmp(name, "user.virtfs.", 12) == 0) { + /* + * Don't allow fetch of user.virtfs namesapce + * in case of mapped security + */ + errno = EACCES; + return -1; + } + buffer = rpath(ctx, path); + ret = lsetxattr(buffer, name, value, size, flags); + g_free(buffer); + return ret; +} + +static int mp_user_removexattr(FsContext *ctx, + const char *path, const char *name) +{ + char *buffer; + int ret; + + if (strncmp(name, "user.virtfs.", 12) == 0) { + /* + * Don't allow fetch of user.virtfs namesapce + * in case of mapped security + */ + errno = EACCES; + return -1; + } + buffer = rpath(ctx, path); + ret = lremovexattr(buffer, name); + g_free(buffer); + return ret; +} + +XattrOperations mapped_user_xattr = { + .name = "user.", + .getxattr = mp_user_getxattr, + .setxattr = mp_user_setxattr, + .listxattr = mp_user_listxattr, + .removexattr = mp_user_removexattr, +}; + +XattrOperations passthrough_user_xattr = { + .name = "user.", + .getxattr = pt_getxattr, + .setxattr = pt_setxattr, + .listxattr = pt_listxattr, + .removexattr = pt_removexattr, +}; diff --git a/hw/9pfs/9p-xattr.c b/hw/9pfs/9p-xattr.c new file mode 100644 index 0000000000..1d7861b27b --- /dev/null +++ b/hw/9pfs/9p-xattr.c @@ -0,0 +1,163 @@ +/* + * 9p xattr callback + * + * Copyright IBM, Corp. 2010 + * + * Authors: + * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ + +#include "virtio-9p.h" +#include "fsdev/file-op-9p.h" +#include "9p-xattr.h" + + +static XattrOperations *get_xattr_operations(XattrOperations **h, + const char *name) +{ + XattrOperations *xops; + for (xops = *(h)++; xops != NULL; xops = *(h)++) { + if (!strncmp(name, xops->name, strlen(xops->name))) { + return xops; + } + } + return NULL; +} + +ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, + const char *name, void *value, size_t size) +{ + XattrOperations *xops = get_xattr_operations(ctx->xops, name); + if (xops) { + return xops->getxattr(ctx, path, name, value, size); + } + errno = EOPNOTSUPP; + return -1; +} + +ssize_t pt_listxattr(FsContext *ctx, const char *path, + char *name, void *value, size_t size) +{ + int name_size = strlen(name) + 1; + if (!value) { + return name_size; + } + + if (size < name_size) { + errno = ERANGE; + return -1; + } + + /* no need for strncpy: name_size is strlen(name)+1 */ + memcpy(value, name, name_size); + return name_size; +} + + +/* + * Get the list and pass to each layer to find out whether + * to send the data or not + */ +ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, + void *value, size_t vsize) +{ + ssize_t size = 0; + char *buffer; + void *ovalue = value; + XattrOperations *xops; + char *orig_value, *orig_value_start; + ssize_t xattr_len, parsed_len = 0, attr_len; + + /* Get the actual len */ + buffer = rpath(ctx, path); + xattr_len = llistxattr(buffer, value, 0); + if (xattr_len <= 0) { + g_free(buffer); + return xattr_len; + } + + /* Now fetch the xattr and find the actual size */ + orig_value = g_malloc(xattr_len); + xattr_len = llistxattr(buffer, orig_value, xattr_len); + g_free(buffer); + + /* store the orig pointer */ + orig_value_start = orig_value; + while (xattr_len > parsed_len) { + xops = get_xattr_operations(ctx->xops, orig_value); + if (!xops) { + goto next_entry; + } + + if (!value) { + size += xops->listxattr(ctx, path, orig_value, value, vsize); + } else { + size = xops->listxattr(ctx, path, orig_value, value, vsize); + if (size < 0) { + goto err_out; + } + value += size; + vsize -= size; + } +next_entry: + /* Got the next entry */ + attr_len = strlen(orig_value) + 1; + parsed_len += attr_len; + orig_value += attr_len; + } + if (value) { + size = value - ovalue; + } + +err_out: + g_free(orig_value_start); + return size; +} + +int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name, + void *value, size_t size, int flags) +{ + XattrOperations *xops = get_xattr_operations(ctx->xops, name); + if (xops) { + return xops->setxattr(ctx, path, name, value, size, flags); + } + errno = EOPNOTSUPP; + return -1; + +} + +int v9fs_remove_xattr(FsContext *ctx, + const char *path, const char *name) +{ + XattrOperations *xops = get_xattr_operations(ctx->xops, name); + if (xops) { + return xops->removexattr(ctx, path, name); + } + errno = EOPNOTSUPP; + return -1; + +} + +XattrOperations *mapped_xattr_ops[] = { + &mapped_user_xattr, + &mapped_pacl_xattr, + &mapped_dacl_xattr, + NULL, +}; + +XattrOperations *passthrough_xattr_ops[] = { + &passthrough_user_xattr, + &passthrough_acl_xattr, + NULL, +}; + +/* for .user none model should be same as passthrough */ +XattrOperations *none_xattr_ops[] = { + &passthrough_user_xattr, + &none_acl_xattr, + NULL, +}; diff --git a/hw/9pfs/9p-xattr.h b/hw/9pfs/9p-xattr.h new file mode 100644 index 0000000000..4d39a20262 --- /dev/null +++ b/hw/9pfs/9p-xattr.h @@ -0,0 +1,120 @@ +/* + * 9p + * + * Copyright IBM, Corp. 2010 + * + * Authors: + * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> + * + * This work is licensed under the terms of the GNU GPL, version 2. See + * the COPYING file in the top-level directory. + * + */ +#ifndef _QEMU_9P_XATTR_H +#define _QEMU_9P_XATTR_H + +#include "qemu/xattr.h" + +typedef struct xattr_operations +{ + const char *name; + ssize_t (*getxattr)(FsContext *ctx, const char *path, + const char *name, void *value, size_t size); + ssize_t (*listxattr)(FsContext *ctx, const char *path, + char *name, void *value, size_t size); + int (*setxattr)(FsContext *ctx, const char *path, const char *name, + void *value, size_t size, int flags); + int (*removexattr)(FsContext *ctx, + const char *path, const char *name); +} XattrOperations; + + +extern XattrOperations mapped_user_xattr; +extern XattrOperations passthrough_user_xattr; + +extern XattrOperations mapped_pacl_xattr; +extern XattrOperations mapped_dacl_xattr; +extern XattrOperations passthrough_acl_xattr; +extern XattrOperations none_acl_xattr; + +extern XattrOperations *mapped_xattr_ops[]; +extern XattrOperations *passthrough_xattr_ops[]; +extern XattrOperations *none_xattr_ops[]; + +ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, const char *name, + void *value, size_t size); +ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, void *value, + size_t vsize); +int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name, + void *value, size_t size, int flags); +int v9fs_remove_xattr(FsContext *ctx, const char *path, const char *name); +ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value, + size_t size); + +static inline ssize_t pt_getxattr(FsContext *ctx, const char *path, + const char *name, void *value, size_t size) +{ + char *buffer; + ssize_t ret; + + buffer = rpath(ctx, path); + ret = lgetxattr(buffer, name, value, size); + g_free(buffer); + return ret; +} + +static inline int pt_setxattr(FsContext *ctx, const char *path, + const char *name, void *value, + size_t size, int flags) +{ + char *buffer; + int ret; + + buffer = rpath(ctx, path); + ret = lsetxattr(buffer, name, value, size, flags); + g_free(buffer); + return ret; +} + +static inline int pt_removexattr(FsContext *ctx, + const char *path, const char *name) +{ + char *buffer; + int ret; + + buffer = rpath(ctx, path); + ret = lremovexattr(path, name); + g_free(buffer); + return ret; +} + +static inline ssize_t notsup_getxattr(FsContext *ctx, const char *path, + const char *name, void *value, + size_t size) +{ + errno = ENOTSUP; + return -1; +} + +static inline int notsup_setxattr(FsContext *ctx, const char *path, + const char *name, void *value, + size_t size, int flags) +{ + errno = ENOTSUP; + return -1; +} + +static inline ssize_t notsup_listxattr(FsContext *ctx, const char *path, + char *name, void *value, size_t size) +{ + return 0; +} + +static inline int notsup_removexattr(FsContext *ctx, + const char *path, const char *name) +{ + errno = ENOTSUP; + return -1; +} + +#endif diff --git a/hw/9pfs/Makefile.objs b/hw/9pfs/Makefile.objs index f694883f64..d5778728d5 100644 --- a/hw/9pfs/Makefile.objs +++ b/hw/9pfs/Makefile.objs @@ -1,6 +1,6 @@ common-obj-y = virtio-9p.o -common-obj-y += 9p-local.o virtio-9p-xattr.o -common-obj-y += virtio-9p-xattr-user.o 9p-posix-acl.o +common-obj-y += 9p-local.o 9p-xattr.o +common-obj-y += 9p-xattr-user.o 9p-posix-acl.o common-obj-y += virtio-9p-coth.o cofs.o codir.o cofile.o common-obj-y += coxattr.o virtio-9p-synth.o common-obj-$(CONFIG_OPEN_BY_HANDLE) += 9p-handle.o diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c index d9754a6759..93b0aafb74 100644 --- a/hw/9pfs/virtio-9p-device.c +++ b/hw/9pfs/virtio-9p-device.c @@ -17,7 +17,7 @@ #include "qemu/sockets.h" #include "virtio-9p.h" #include "fsdev/qemu-fsdev.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #include "virtio-9p-coth.h" #include "hw/virtio/virtio-access.h" diff --git a/hw/9pfs/virtio-9p-synth.c b/hw/9pfs/virtio-9p-synth.c index 840e4ebb5a..efa340e9c9 100644 --- a/hw/9pfs/virtio-9p-synth.c +++ b/hw/9pfs/virtio-9p-synth.c @@ -14,7 +14,7 @@ #include "hw/virtio/virtio.h" #include "virtio-9p.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #include "fsdev/qemu-fsdev.h" #include "virtio-9p-synth.h" diff --git a/hw/9pfs/virtio-9p-xattr-user.c b/hw/9pfs/virtio-9p-xattr-user.c deleted file mode 100644 index 46133e06db..0000000000 --- a/hw/9pfs/virtio-9p-xattr-user.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Virtio 9p user. xattr callback - * - * Copyright IBM, Corp. 2010 - * - * Authors: - * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#include <sys/types.h> -#include "hw/virtio/virtio.h" -#include "virtio-9p.h" -#include "fsdev/file-op-9p.h" -#include "virtio-9p-xattr.h" - - -static ssize_t mp_user_getxattr(FsContext *ctx, const char *path, - const char *name, void *value, size_t size) -{ - char *buffer; - ssize_t ret; - - if (strncmp(name, "user.virtfs.", 12) == 0) { - /* - * Don't allow fetch of user.virtfs namesapce - * in case of mapped security - */ - errno = ENOATTR; - return -1; - } - buffer = rpath(ctx, path); - ret = lgetxattr(buffer, name, value, size); - g_free(buffer); - return ret; -} - -static ssize_t mp_user_listxattr(FsContext *ctx, const char *path, - char *name, void *value, size_t size) -{ - int name_size = strlen(name) + 1; - if (strncmp(name, "user.virtfs.", 12) == 0) { - - /* check if it is a mapped posix acl */ - if (strncmp(name, "user.virtfs.system.posix_acl_", 29) == 0) { - /* adjust the name and size */ - name += 12; - name_size -= 12; - } else { - /* - * Don't allow fetch of user.virtfs namesapce - * in case of mapped security - */ - return 0; - } - } - if (!value) { - return name_size; - } - - if (size < name_size) { - errno = ERANGE; - return -1; - } - - /* name_size includes the trailing NUL. */ - memcpy(value, name, name_size); - return name_size; -} - -static int mp_user_setxattr(FsContext *ctx, const char *path, const char *name, - void *value, size_t size, int flags) -{ - char *buffer; - int ret; - - if (strncmp(name, "user.virtfs.", 12) == 0) { - /* - * Don't allow fetch of user.virtfs namesapce - * in case of mapped security - */ - errno = EACCES; - return -1; - } - buffer = rpath(ctx, path); - ret = lsetxattr(buffer, name, value, size, flags); - g_free(buffer); - return ret; -} - -static int mp_user_removexattr(FsContext *ctx, - const char *path, const char *name) -{ - char *buffer; - int ret; - - if (strncmp(name, "user.virtfs.", 12) == 0) { - /* - * Don't allow fetch of user.virtfs namesapce - * in case of mapped security - */ - errno = EACCES; - return -1; - } - buffer = rpath(ctx, path); - ret = lremovexattr(buffer, name); - g_free(buffer); - return ret; -} - -XattrOperations mapped_user_xattr = { - .name = "user.", - .getxattr = mp_user_getxattr, - .setxattr = mp_user_setxattr, - .listxattr = mp_user_listxattr, - .removexattr = mp_user_removexattr, -}; - -XattrOperations passthrough_user_xattr = { - .name = "user.", - .getxattr = pt_getxattr, - .setxattr = pt_setxattr, - .listxattr = pt_listxattr, - .removexattr = pt_removexattr, -}; diff --git a/hw/9pfs/virtio-9p-xattr.c b/hw/9pfs/virtio-9p-xattr.c deleted file mode 100644 index 07183887c5..0000000000 --- a/hw/9pfs/virtio-9p-xattr.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * Virtio 9p xattr callback - * - * Copyright IBM, Corp. 2010 - * - * Authors: - * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#include "hw/virtio/virtio.h" -#include "virtio-9p.h" -#include "fsdev/file-op-9p.h" -#include "virtio-9p-xattr.h" - - -static XattrOperations *get_xattr_operations(XattrOperations **h, - const char *name) -{ - XattrOperations *xops; - for (xops = *(h)++; xops != NULL; xops = *(h)++) { - if (!strncmp(name, xops->name, strlen(xops->name))) { - return xops; - } - } - return NULL; -} - -ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, - const char *name, void *value, size_t size) -{ - XattrOperations *xops = get_xattr_operations(ctx->xops, name); - if (xops) { - return xops->getxattr(ctx, path, name, value, size); - } - errno = EOPNOTSUPP; - return -1; -} - -ssize_t pt_listxattr(FsContext *ctx, const char *path, - char *name, void *value, size_t size) -{ - int name_size = strlen(name) + 1; - if (!value) { - return name_size; - } - - if (size < name_size) { - errno = ERANGE; - return -1; - } - - /* no need for strncpy: name_size is strlen(name)+1 */ - memcpy(value, name, name_size); - return name_size; -} - - -/* - * Get the list and pass to each layer to find out whether - * to send the data or not - */ -ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, - void *value, size_t vsize) -{ - ssize_t size = 0; - char *buffer; - void *ovalue = value; - XattrOperations *xops; - char *orig_value, *orig_value_start; - ssize_t xattr_len, parsed_len = 0, attr_len; - - /* Get the actual len */ - buffer = rpath(ctx, path); - xattr_len = llistxattr(buffer, value, 0); - if (xattr_len <= 0) { - g_free(buffer); - return xattr_len; - } - - /* Now fetch the xattr and find the actual size */ - orig_value = g_malloc(xattr_len); - xattr_len = llistxattr(buffer, orig_value, xattr_len); - g_free(buffer); - - /* store the orig pointer */ - orig_value_start = orig_value; - while (xattr_len > parsed_len) { - xops = get_xattr_operations(ctx->xops, orig_value); - if (!xops) { - goto next_entry; - } - - if (!value) { - size += xops->listxattr(ctx, path, orig_value, value, vsize); - } else { - size = xops->listxattr(ctx, path, orig_value, value, vsize); - if (size < 0) { - goto err_out; - } - value += size; - vsize -= size; - } -next_entry: - /* Got the next entry */ - attr_len = strlen(orig_value) + 1; - parsed_len += attr_len; - orig_value += attr_len; - } - if (value) { - size = value - ovalue; - } - -err_out: - g_free(orig_value_start); - return size; -} - -int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name, - void *value, size_t size, int flags) -{ - XattrOperations *xops = get_xattr_operations(ctx->xops, name); - if (xops) { - return xops->setxattr(ctx, path, name, value, size, flags); - } - errno = EOPNOTSUPP; - return -1; - -} - -int v9fs_remove_xattr(FsContext *ctx, - const char *path, const char *name) -{ - XattrOperations *xops = get_xattr_operations(ctx->xops, name); - if (xops) { - return xops->removexattr(ctx, path, name); - } - errno = EOPNOTSUPP; - return -1; - -} - -XattrOperations *mapped_xattr_ops[] = { - &mapped_user_xattr, - &mapped_pacl_xattr, - &mapped_dacl_xattr, - NULL, -}; - -XattrOperations *passthrough_xattr_ops[] = { - &passthrough_user_xattr, - &passthrough_acl_xattr, - NULL, -}; - -/* for .user none model should be same as passthrough */ -XattrOperations *none_xattr_ops[] = { - &passthrough_user_xattr, - &none_acl_xattr, - NULL, -}; diff --git a/hw/9pfs/virtio-9p-xattr.h b/hw/9pfs/virtio-9p-xattr.h deleted file mode 100644 index 327b32b5aa..0000000000 --- a/hw/9pfs/virtio-9p-xattr.h +++ /dev/null @@ -1,120 +0,0 @@ -/* - * Virtio 9p - * - * Copyright IBM, Corp. 2010 - * - * Authors: - * Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ -#ifndef _QEMU_VIRTIO_9P_XATTR_H -#define _QEMU_VIRTIO_9P_XATTR_H - -#include "qemu/xattr.h" - -typedef struct xattr_operations -{ - const char *name; - ssize_t (*getxattr)(FsContext *ctx, const char *path, - const char *name, void *value, size_t size); - ssize_t (*listxattr)(FsContext *ctx, const char *path, - char *name, void *value, size_t size); - int (*setxattr)(FsContext *ctx, const char *path, const char *name, - void *value, size_t size, int flags); - int (*removexattr)(FsContext *ctx, - const char *path, const char *name); -} XattrOperations; - - -extern XattrOperations mapped_user_xattr; -extern XattrOperations passthrough_user_xattr; - -extern XattrOperations mapped_pacl_xattr; -extern XattrOperations mapped_dacl_xattr; -extern XattrOperations passthrough_acl_xattr; -extern XattrOperations none_acl_xattr; - -extern XattrOperations *mapped_xattr_ops[]; -extern XattrOperations *passthrough_xattr_ops[]; -extern XattrOperations *none_xattr_ops[]; - -ssize_t v9fs_get_xattr(FsContext *ctx, const char *path, const char *name, - void *value, size_t size); -ssize_t v9fs_list_xattr(FsContext *ctx, const char *path, void *value, - size_t vsize); -int v9fs_set_xattr(FsContext *ctx, const char *path, const char *name, - void *value, size_t size, int flags); -int v9fs_remove_xattr(FsContext *ctx, const char *path, const char *name); -ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value, - size_t size); - -static inline ssize_t pt_getxattr(FsContext *ctx, const char *path, - const char *name, void *value, size_t size) -{ - char *buffer; - ssize_t ret; - - buffer = rpath(ctx, path); - ret = lgetxattr(buffer, name, value, size); - g_free(buffer); - return ret; -} - -static inline int pt_setxattr(FsContext *ctx, const char *path, - const char *name, void *value, - size_t size, int flags) -{ - char *buffer; - int ret; - - buffer = rpath(ctx, path); - ret = lsetxattr(buffer, name, value, size, flags); - g_free(buffer); - return ret; -} - -static inline int pt_removexattr(FsContext *ctx, - const char *path, const char *name) -{ - char *buffer; - int ret; - - buffer = rpath(ctx, path); - ret = lremovexattr(path, name); - g_free(buffer); - return ret; -} - -static inline ssize_t notsup_getxattr(FsContext *ctx, const char *path, - const char *name, void *value, - size_t size) -{ - errno = ENOTSUP; - return -1; -} - -static inline int notsup_setxattr(FsContext *ctx, const char *path, - const char *name, void *value, - size_t size, int flags) -{ - errno = ENOTSUP; - return -1; -} - -static inline ssize_t notsup_listxattr(FsContext *ctx, const char *path, - char *name, void *value, size_t size) -{ - return 0; -} - -static inline int notsup_removexattr(FsContext *ctx, - const char *path, const char *name) -{ - errno = ENOTSUP; - return -1; -} - -#endif diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c index 83e4e93983..bef777aba5 100644 --- a/hw/9pfs/virtio-9p.c +++ b/hw/9pfs/virtio-9p.c @@ -16,7 +16,7 @@ #include "qemu/sockets.h" #include "virtio-9p.h" #include "fsdev/qemu-fsdev.h" -#include "virtio-9p-xattr.h" +#include "9p-xattr.h" #include "virtio-9p-coth.h" #include "trace.h" #include "migration/migration.h"
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